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Staging: strip: delete the driver
[linux/fpc-iii.git] / drivers / scsi / advansys.c
blob9201afe65609bd23ee732818534b91d41252ea9b
1 #define DRV_NAME "advansys"
2 #define ASC_VERSION "3.4" /* AdvanSys Driver Version */
3
4 /*
5 * advansys.c - Linux Host Driver for AdvanSys SCSI Adapters
6 *
7 * Copyright (c) 1995-2000 Advanced System Products, Inc.
8 * Copyright (c) 2000-2001 ConnectCom Solutions, Inc.
9 * Copyright (c) 2007 Matthew Wilcox <matthew@wil.cx>
10 * All Rights Reserved.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 */
17
18 /*
19 * As of March 8, 2000 Advanced System Products, Inc. (AdvanSys)
20 * changed its name to ConnectCom Solutions, Inc.
21 * On June 18, 2001 Initio Corp. acquired ConnectCom's SCSI assets
22 */
23
24 #include <linux/module.h>
25 #include <linux/string.h>
26 #include <linux/kernel.h>
27 #include <linux/types.h>
28 #include <linux/ioport.h>
29 #include <linux/interrupt.h>
30 #include <linux/delay.h>
31 #include <linux/slab.h>
32 #include <linux/mm.h>
33 #include <linux/proc_fs.h>
34 #include <linux/init.h>
35 #include <linux/blkdev.h>
36 #include <linux/isa.h>
37 #include <linux/eisa.h>
38 #include <linux/pci.h>
39 #include <linux/spinlock.h>
40 #include <linux/dma-mapping.h>
41 #include <linux/firmware.h>
42
43 #include <asm/io.h>
44 #include <asm/system.h>
45 #include <asm/dma.h>
46
47 #include <scsi/scsi_cmnd.h>
48 #include <scsi/scsi_device.h>
49 #include <scsi/scsi_tcq.h>
50 #include <scsi/scsi.h>
51 #include <scsi/scsi_host.h>
52
53 /* FIXME:
54 *
55 * 1. Although all of the necessary command mapping places have the
56 * appropriate dma_map.. APIs, the driver still processes its internal
57 * queue using bus_to_virt() and virt_to_bus() which are illegal under
58 * the API. The entire queue processing structure will need to be
59 * altered to fix this.
60 * 2. Need to add memory mapping workaround. Test the memory mapping.
61 * If it doesn't work revert to I/O port access. Can a test be done
62 * safely?
63 * 3. Handle an interrupt not working. Keep an interrupt counter in
64 * the interrupt handler. In the timeout function if the interrupt
65 * has not occurred then print a message and run in polled mode.
66 * 4. Need to add support for target mode commands, cf. CAM XPT.
67 * 5. check DMA mapping functions for failure
68 * 6. Use scsi_transport_spi
69 * 7. advansys_info is not safe against multiple simultaneous callers
70 * 8. Add module_param to override ISA/VLB ioport array
71 */
72 #warning this driver is still not properly converted to the DMA API
73
74 /* Enable driver /proc statistics. */
75 #define ADVANSYS_STATS
76
77 /* Enable driver tracing. */
78 #undef ADVANSYS_DEBUG
79
80 /*
81 * Portable Data Types
82 *
83 * Any instance where a 32-bit long or pointer type is assumed
84 * for precision or HW defined structures, the following define
85 * types must be used. In Linux the char, short, and int types
86 * are all consistent at 8, 16, and 32 bits respectively. Pointers
87 * and long types are 64 bits on Alpha and UltraSPARC.
88 */
89 #define ASC_PADDR __u32 /* Physical/Bus address data type. */
90 #define ASC_VADDR __u32 /* Virtual address data type. */
91 #define ASC_DCNT __u32 /* Unsigned Data count type. */
92 #define ASC_SDCNT __s32 /* Signed Data count type. */
93
94 typedef unsigned char uchar;
95
96 #ifndef TRUE
97 #define TRUE (1)
98 #endif
99 #ifndef FALSE
100 #define FALSE (0)
101 #endif
102
103 #define ERR (-1)
104 #define UW_ERR (uint)(0xFFFF)
105 #define isodd_word(val) ((((uint)val) & (uint)0x0001) != 0)
106
107 #define PCI_VENDOR_ID_ASP 0x10cd
108 #define PCI_DEVICE_ID_ASP_1200A 0x1100
109 #define PCI_DEVICE_ID_ASP_ABP940 0x1200
110 #define PCI_DEVICE_ID_ASP_ABP940U 0x1300
111 #define PCI_DEVICE_ID_ASP_ABP940UW 0x2300
112 #define PCI_DEVICE_ID_38C0800_REV1 0x2500
113 #define PCI_DEVICE_ID_38C1600_REV1 0x2700
114
115 /*
116 * Enable CC_VERY_LONG_SG_LIST to support up to 64K element SG lists.
117 * The SRB structure will have to be changed and the ASC_SRB2SCSIQ()
118 * macro re-defined to be able to obtain a ASC_SCSI_Q pointer from the
119 * SRB structure.
120 */
121 #define CC_VERY_LONG_SG_LIST 0
122 #define ASC_SRB2SCSIQ(srb_ptr) (srb_ptr)
123
124 #define PortAddr unsigned int /* port address size */
125 #define inp(port) inb(port)
126 #define outp(port, byte) outb((byte), (port))
127
128 #define inpw(port) inw(port)
129 #define outpw(port, word) outw((word), (port))
130
131 #define ASC_MAX_SG_QUEUE 7
132 #define ASC_MAX_SG_LIST 255
133
134 #define ASC_CS_TYPE unsigned short
135
136 #define ASC_IS_ISA (0x0001)
137 #define ASC_IS_ISAPNP (0x0081)
138 #define ASC_IS_EISA (0x0002)
139 #define ASC_IS_PCI (0x0004)
140 #define ASC_IS_PCI_ULTRA (0x0104)
141 #define ASC_IS_PCMCIA (0x0008)
142 #define ASC_IS_MCA (0x0020)
143 #define ASC_IS_VL (0x0040)
144 #define ASC_IS_WIDESCSI_16 (0x0100)
145 #define ASC_IS_WIDESCSI_32 (0x0200)
146 #define ASC_IS_BIG_ENDIAN (0x8000)
147
148 #define ASC_CHIP_MIN_VER_VL (0x01)
149 #define ASC_CHIP_MAX_VER_VL (0x07)
150 #define ASC_CHIP_MIN_VER_PCI (0x09)
151 #define ASC_CHIP_MAX_VER_PCI (0x0F)
152 #define ASC_CHIP_VER_PCI_BIT (0x08)
153 #define ASC_CHIP_MIN_VER_ISA (0x11)
154 #define ASC_CHIP_MIN_VER_ISA_PNP (0x21)
155 #define ASC_CHIP_MAX_VER_ISA (0x27)
156 #define ASC_CHIP_VER_ISA_BIT (0x30)
157 #define ASC_CHIP_VER_ISAPNP_BIT (0x20)
158 #define ASC_CHIP_VER_ASYN_BUG (0x21)
159 #define ASC_CHIP_VER_PCI 0x08
160 #define ASC_CHIP_VER_PCI_ULTRA_3150 (ASC_CHIP_VER_PCI | 0x02)
161 #define ASC_CHIP_VER_PCI_ULTRA_3050 (ASC_CHIP_VER_PCI | 0x03)
162 #define ASC_CHIP_MIN_VER_EISA (0x41)
163 #define ASC_CHIP_MAX_VER_EISA (0x47)
164 #define ASC_CHIP_VER_EISA_BIT (0x40)
165 #define ASC_CHIP_LATEST_VER_EISA ((ASC_CHIP_MIN_VER_EISA - 1) + 3)
166 #define ASC_MAX_VL_DMA_COUNT (0x07FFFFFFL)
167 #define ASC_MAX_PCI_DMA_COUNT (0xFFFFFFFFL)
168 #define ASC_MAX_ISA_DMA_COUNT (0x00FFFFFFL)
169
170 #define ASC_SCSI_ID_BITS 3
171 #define ASC_SCSI_TIX_TYPE uchar
172 #define ASC_ALL_DEVICE_BIT_SET 0xFF
173 #define ASC_SCSI_BIT_ID_TYPE uchar
174 #define ASC_MAX_TID 7
175 #define ASC_MAX_LUN 7
176 #define ASC_SCSI_WIDTH_BIT_SET 0xFF
177 #define ASC_MAX_SENSE_LEN 32
178 #define ASC_MIN_SENSE_LEN 14
179 #define ASC_SCSI_RESET_HOLD_TIME_US 60
180
181 /*
182 * Narrow boards only support 12-byte commands, while wide boards
183 * extend to 16-byte commands.
184 */
185 #define ASC_MAX_CDB_LEN 12
186 #define ADV_MAX_CDB_LEN 16
187
188 #define MS_SDTR_LEN 0x03
189 #define MS_WDTR_LEN 0x02
190
191 #define ASC_SG_LIST_PER_Q 7
192 #define QS_FREE 0x00
193 #define QS_READY 0x01
194 #define QS_DISC1 0x02
195 #define QS_DISC2 0x04
196 #define QS_BUSY 0x08
197 #define QS_ABORTED 0x40
198 #define QS_DONE 0x80
199 #define QC_NO_CALLBACK 0x01
200 #define QC_SG_SWAP_QUEUE 0x02
201 #define QC_SG_HEAD 0x04
202 #define QC_DATA_IN 0x08
203 #define QC_DATA_OUT 0x10
204 #define QC_URGENT 0x20
205 #define QC_MSG_OUT 0x40
206 #define QC_REQ_SENSE 0x80
207 #define QCSG_SG_XFER_LIST 0x02
208 #define QCSG_SG_XFER_MORE 0x04
209 #define QCSG_SG_XFER_END 0x08
210 #define QD_IN_PROGRESS 0x00
211 #define QD_NO_ERROR 0x01
212 #define QD_ABORTED_BY_HOST 0x02
213 #define QD_WITH_ERROR 0x04
214 #define QD_INVALID_REQUEST 0x80
215 #define QD_INVALID_HOST_NUM 0x81
216 #define QD_INVALID_DEVICE 0x82
217 #define QD_ERR_INTERNAL 0xFF
218 #define QHSTA_NO_ERROR 0x00
219 #define QHSTA_M_SEL_TIMEOUT 0x11
220 #define QHSTA_M_DATA_OVER_RUN 0x12
221 #define QHSTA_M_DATA_UNDER_RUN 0x12
222 #define QHSTA_M_UNEXPECTED_BUS_FREE 0x13
223 #define QHSTA_M_BAD_BUS_PHASE_SEQ 0x14
224 #define QHSTA_D_QDONE_SG_LIST_CORRUPTED 0x21
225 #define QHSTA_D_ASC_DVC_ERROR_CODE_SET 0x22
226 #define QHSTA_D_HOST_ABORT_FAILED 0x23
227 #define QHSTA_D_EXE_SCSI_Q_FAILED 0x24
228 #define QHSTA_D_EXE_SCSI_Q_BUSY_TIMEOUT 0x25
229 #define QHSTA_D_ASPI_NO_BUF_POOL 0x26
230 #define QHSTA_M_WTM_TIMEOUT 0x41
231 #define QHSTA_M_BAD_CMPL_STATUS_IN 0x42
232 #define QHSTA_M_NO_AUTO_REQ_SENSE 0x43
233 #define QHSTA_M_AUTO_REQ_SENSE_FAIL 0x44
234 #define QHSTA_M_TARGET_STATUS_BUSY 0x45
235 #define QHSTA_M_BAD_TAG_CODE 0x46
236 #define QHSTA_M_BAD_QUEUE_FULL_OR_BUSY 0x47
237 #define QHSTA_M_HUNG_REQ_SCSI_BUS_RESET 0x48
238 #define QHSTA_D_LRAM_CMP_ERROR 0x81
239 #define QHSTA_M_MICRO_CODE_ERROR_HALT 0xA1
240 #define ASC_FLAG_SCSIQ_REQ 0x01
241 #define ASC_FLAG_BIOS_SCSIQ_REQ 0x02
242 #define ASC_FLAG_BIOS_ASYNC_IO 0x04
243 #define ASC_FLAG_SRB_LINEAR_ADDR 0x08
244 #define ASC_FLAG_WIN16 0x10
245 #define ASC_FLAG_WIN32 0x20
246 #define ASC_FLAG_ISA_OVER_16MB 0x40
247 #define ASC_FLAG_DOS_VM_CALLBACK 0x80
248 #define ASC_TAG_FLAG_EXTRA_BYTES 0x10
249 #define ASC_TAG_FLAG_DISABLE_DISCONNECT 0x04
250 #define ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX 0x08
251 #define ASC_TAG_FLAG_DISABLE_CHK_COND_INT_HOST 0x40
252 #define ASC_SCSIQ_CPY_BEG 4
253 #define ASC_SCSIQ_SGHD_CPY_BEG 2
254 #define ASC_SCSIQ_B_FWD 0
255 #define ASC_SCSIQ_B_BWD 1
256 #define ASC_SCSIQ_B_STATUS 2
257 #define ASC_SCSIQ_B_QNO 3
258 #define ASC_SCSIQ_B_CNTL 4
259 #define ASC_SCSIQ_B_SG_QUEUE_CNT 5
260 #define ASC_SCSIQ_D_DATA_ADDR 8
261 #define ASC_SCSIQ_D_DATA_CNT 12
262 #define ASC_SCSIQ_B_SENSE_LEN 20
263 #define ASC_SCSIQ_DONE_INFO_BEG 22
264 #define ASC_SCSIQ_D_SRBPTR 22
265 #define ASC_SCSIQ_B_TARGET_IX 26
266 #define ASC_SCSIQ_B_CDB_LEN 28
267 #define ASC_SCSIQ_B_TAG_CODE 29
268 #define ASC_SCSIQ_W_VM_ID 30
269 #define ASC_SCSIQ_DONE_STATUS 32
270 #define ASC_SCSIQ_HOST_STATUS 33
271 #define ASC_SCSIQ_SCSI_STATUS 34
272 #define ASC_SCSIQ_CDB_BEG 36
273 #define ASC_SCSIQ_DW_REMAIN_XFER_ADDR 56
274 #define ASC_SCSIQ_DW_REMAIN_XFER_CNT 60
275 #define ASC_SCSIQ_B_FIRST_SG_WK_QP 48
276 #define ASC_SCSIQ_B_SG_WK_QP 49
277 #define ASC_SCSIQ_B_SG_WK_IX 50
278 #define ASC_SCSIQ_W_ALT_DC1 52
279 #define ASC_SCSIQ_B_LIST_CNT 6
280 #define ASC_SCSIQ_B_CUR_LIST_CNT 7
281 #define ASC_SGQ_B_SG_CNTL 4
282 #define ASC_SGQ_B_SG_HEAD_QP 5
283 #define ASC_SGQ_B_SG_LIST_CNT 6
284 #define ASC_SGQ_B_SG_CUR_LIST_CNT 7
285 #define ASC_SGQ_LIST_BEG 8
286 #define ASC_DEF_SCSI1_QNG 4
287 #define ASC_MAX_SCSI1_QNG 4
288 #define ASC_DEF_SCSI2_QNG 16
289 #define ASC_MAX_SCSI2_QNG 32
290 #define ASC_TAG_CODE_MASK 0x23
291 #define ASC_STOP_REQ_RISC_STOP 0x01
292 #define ASC_STOP_ACK_RISC_STOP 0x03
293 #define ASC_STOP_CLEAN_UP_BUSY_Q 0x10
294 #define ASC_STOP_CLEAN_UP_DISC_Q 0x20
295 #define ASC_STOP_HOST_REQ_RISC_HALT 0x40
296 #define ASC_TIDLUN_TO_IX(tid, lun) (ASC_SCSI_TIX_TYPE)((tid) + ((lun)<<ASC_SCSI_ID_BITS))
297 #define ASC_TID_TO_TARGET_ID(tid) (ASC_SCSI_BIT_ID_TYPE)(0x01 << (tid))
298 #define ASC_TIX_TO_TARGET_ID(tix) (0x01 << ((tix) & ASC_MAX_TID))
299 #define ASC_TIX_TO_TID(tix) ((tix) & ASC_MAX_TID)
300 #define ASC_TID_TO_TIX(tid) ((tid) & ASC_MAX_TID)
301 #define ASC_TIX_TO_LUN(tix) (((tix) >> ASC_SCSI_ID_BITS) & ASC_MAX_LUN)
302 #define ASC_QNO_TO_QADDR(q_no) ((ASC_QADR_BEG)+((int)(q_no) << 6))
303
304 typedef struct asc_scsiq_1 {
305 uchar status;
306 uchar q_no;
307 uchar cntl;
308 uchar sg_queue_cnt;
309 uchar target_id;
310 uchar target_lun;
311 ASC_PADDR data_addr;
312 ASC_DCNT data_cnt;
313 ASC_PADDR sense_addr;
314 uchar sense_len;
315 uchar extra_bytes;
316 } ASC_SCSIQ_1;
317
318 typedef struct asc_scsiq_2 {
319 ASC_VADDR srb_ptr;
320 uchar target_ix;
321 uchar flag;
322 uchar cdb_len;
323 uchar tag_code;
324 ushort vm_id;
325 } ASC_SCSIQ_2;
326
327 typedef struct asc_scsiq_3 {
328 uchar done_stat;
329 uchar host_stat;
330 uchar scsi_stat;
331 uchar scsi_msg;
332 } ASC_SCSIQ_3;
333
334 typedef struct asc_scsiq_4 {
335 uchar cdb[ASC_MAX_CDB_LEN];
336 uchar y_first_sg_list_qp;
337 uchar y_working_sg_qp;
338 uchar y_working_sg_ix;
339 uchar y_res;
340 ushort x_req_count;
341 ushort x_reconnect_rtn;
342 ASC_PADDR x_saved_data_addr;
343 ASC_DCNT x_saved_data_cnt;
344 } ASC_SCSIQ_4;
345
346 typedef struct asc_q_done_info {
347 ASC_SCSIQ_2 d2;
348 ASC_SCSIQ_3 d3;
349 uchar q_status;
350 uchar q_no;
351 uchar cntl;
352 uchar sense_len;
353 uchar extra_bytes;
354 uchar res;
355 ASC_DCNT remain_bytes;
356 } ASC_QDONE_INFO;
357
358 typedef struct asc_sg_list {
359 ASC_PADDR addr;
360 ASC_DCNT bytes;
361 } ASC_SG_LIST;
362
363 typedef struct asc_sg_head {
364 ushort entry_cnt;
365 ushort queue_cnt;
366 ushort entry_to_copy;
367 ushort res;
368 ASC_SG_LIST sg_list[0];
369 } ASC_SG_HEAD;
370
371 typedef struct asc_scsi_q {
372 ASC_SCSIQ_1 q1;
373 ASC_SCSIQ_2 q2;
374 uchar *cdbptr;
375 ASC_SG_HEAD *sg_head;
376 ushort remain_sg_entry_cnt;
377 ushort next_sg_index;
378 } ASC_SCSI_Q;
379
380 typedef struct asc_scsi_req_q {
381 ASC_SCSIQ_1 r1;
382 ASC_SCSIQ_2 r2;
383 uchar *cdbptr;
384 ASC_SG_HEAD *sg_head;
385 uchar *sense_ptr;
386 ASC_SCSIQ_3 r3;
387 uchar cdb[ASC_MAX_CDB_LEN];
388 uchar sense[ASC_MIN_SENSE_LEN];
389 } ASC_SCSI_REQ_Q;
390
391 typedef struct asc_scsi_bios_req_q {
392 ASC_SCSIQ_1 r1;
393 ASC_SCSIQ_2 r2;
394 uchar *cdbptr;
395 ASC_SG_HEAD *sg_head;
396 uchar *sense_ptr;
397 ASC_SCSIQ_3 r3;
398 uchar cdb[ASC_MAX_CDB_LEN];
399 uchar sense[ASC_MIN_SENSE_LEN];
400 } ASC_SCSI_BIOS_REQ_Q;
401
402 typedef struct asc_risc_q {
403 uchar fwd;
404 uchar bwd;
405 ASC_SCSIQ_1 i1;
406 ASC_SCSIQ_2 i2;
407 ASC_SCSIQ_3 i3;
408 ASC_SCSIQ_4 i4;
409 } ASC_RISC_Q;
410
411 typedef struct asc_sg_list_q {
412 uchar seq_no;
413 uchar q_no;
414 uchar cntl;
415 uchar sg_head_qp;
416 uchar sg_list_cnt;
417 uchar sg_cur_list_cnt;
418 } ASC_SG_LIST_Q;
419
420 typedef struct asc_risc_sg_list_q {
421 uchar fwd;
422 uchar bwd;
423 ASC_SG_LIST_Q sg;
424 ASC_SG_LIST sg_list[7];
425 } ASC_RISC_SG_LIST_Q;
426
427 #define ASCQ_ERR_Q_STATUS 0x0D
428 #define ASCQ_ERR_CUR_QNG 0x17
429 #define ASCQ_ERR_SG_Q_LINKS 0x18
430 #define ASCQ_ERR_ISR_RE_ENTRY 0x1A
431 #define ASCQ_ERR_CRITICAL_RE_ENTRY 0x1B
432 #define ASCQ_ERR_ISR_ON_CRITICAL 0x1C
433
434 /*
435 * Warning code values are set in ASC_DVC_VAR 'warn_code'.
436 */
437 #define ASC_WARN_NO_ERROR 0x0000
438 #define ASC_WARN_IO_PORT_ROTATE 0x0001
439 #define ASC_WARN_EEPROM_CHKSUM 0x0002
440 #define ASC_WARN_IRQ_MODIFIED 0x0004
441 #define ASC_WARN_AUTO_CONFIG 0x0008
442 #define ASC_WARN_CMD_QNG_CONFLICT 0x0010
443 #define ASC_WARN_EEPROM_RECOVER 0x0020
444 #define ASC_WARN_CFG_MSW_RECOVER 0x0040
445
446 /*
447 * Error code values are set in {ASC/ADV}_DVC_VAR 'err_code'.
448 */
449 #define ASC_IERR_NO_CARRIER 0x0001 /* No more carrier memory */
450 #define ASC_IERR_MCODE_CHKSUM 0x0002 /* micro code check sum error */
451 #define ASC_IERR_SET_PC_ADDR 0x0004
452 #define ASC_IERR_START_STOP_CHIP 0x0008 /* start/stop chip failed */
453 #define ASC_IERR_ILLEGAL_CONNECTION 0x0010 /* Illegal cable connection */
454 #define ASC_IERR_SINGLE_END_DEVICE 0x0020 /* SE device on DIFF bus */
455 #define ASC_IERR_REVERSED_CABLE 0x0040 /* Narrow flat cable reversed */
456 #define ASC_IERR_SET_SCSI_ID 0x0080 /* set SCSI ID failed */
457 #define ASC_IERR_HVD_DEVICE 0x0100 /* HVD device on LVD port */
458 #define ASC_IERR_BAD_SIGNATURE 0x0200 /* signature not found */
459 #define ASC_IERR_NO_BUS_TYPE 0x0400
460 #define ASC_IERR_BIST_PRE_TEST 0x0800 /* BIST pre-test error */
461 #define ASC_IERR_BIST_RAM_TEST 0x1000 /* BIST RAM test error */
462 #define ASC_IERR_BAD_CHIPTYPE 0x2000 /* Invalid chip_type setting */
463
464 #define ASC_DEF_MAX_TOTAL_QNG (0xF0)
465 #define ASC_MIN_TAG_Q_PER_DVC (0x04)
466 #define ASC_MIN_FREE_Q (0x02)
467 #define ASC_MIN_TOTAL_QNG ((ASC_MAX_SG_QUEUE)+(ASC_MIN_FREE_Q))
468 #define ASC_MAX_TOTAL_QNG 240
469 #define ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG 16
470 #define ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG 8
471 #define ASC_MAX_PCI_INRAM_TOTAL_QNG 20
472 #define ASC_MAX_INRAM_TAG_QNG 16
473 #define ASC_IOADR_GAP 0x10
474 #define ASC_SYN_MAX_OFFSET 0x0F
475 #define ASC_DEF_SDTR_OFFSET 0x0F
476 #define ASC_SDTR_ULTRA_PCI_10MB_INDEX 0x02
477 #define ASYN_SDTR_DATA_FIX_PCI_REV_AB 0x41
478
479 /* The narrow chip only supports a limited selection of transfer rates.
480 * These are encoded in the range 0..7 or 0..15 depending whether the chip
481 * is Ultra-capable or not. These tables let us convert from one to the other.
482 */
483 static const unsigned char asc_syn_xfer_period[8] = {
484 25, 30, 35, 40, 50, 60, 70, 85
485 };
486
487 static const unsigned char asc_syn_ultra_xfer_period[16] = {
488 12, 19, 25, 32, 38, 44, 50, 57, 63, 69, 75, 82, 88, 94, 100, 107
489 };
490
491 typedef struct ext_msg {
492 uchar msg_type;
493 uchar msg_len;
494 uchar msg_req;
495 union {
496 struct {
497 uchar sdtr_xfer_period;
498 uchar sdtr_req_ack_offset;
499 } sdtr;
500 struct {
501 uchar wdtr_width;
502 } wdtr;
503 struct {
504 uchar mdp_b3;
505 uchar mdp_b2;
506 uchar mdp_b1;
507 uchar mdp_b0;
508 } mdp;
509 } u_ext_msg;
510 uchar res;
511 } EXT_MSG;
512
513 #define xfer_period u_ext_msg.sdtr.sdtr_xfer_period
514 #define req_ack_offset u_ext_msg.sdtr.sdtr_req_ack_offset
515 #define wdtr_width u_ext_msg.wdtr.wdtr_width
516 #define mdp_b3 u_ext_msg.mdp_b3
517 #define mdp_b2 u_ext_msg.mdp_b2
518 #define mdp_b1 u_ext_msg.mdp_b1
519 #define mdp_b0 u_ext_msg.mdp_b0
520
521 typedef struct asc_dvc_cfg {
522 ASC_SCSI_BIT_ID_TYPE can_tagged_qng;
523 ASC_SCSI_BIT_ID_TYPE cmd_qng_enabled;
524 ASC_SCSI_BIT_ID_TYPE disc_enable;
525 ASC_SCSI_BIT_ID_TYPE sdtr_enable;
526 uchar chip_scsi_id;
527 uchar isa_dma_speed;
528 uchar isa_dma_channel;
529 uchar chip_version;
530 ushort mcode_date;
531 ushort mcode_version;
532 uchar max_tag_qng[ASC_MAX_TID + 1];
533 uchar sdtr_period_offset[ASC_MAX_TID + 1];
534 uchar adapter_info[6];
535 } ASC_DVC_CFG;
536
537 #define ASC_DEF_DVC_CNTL 0xFFFF
538 #define ASC_DEF_CHIP_SCSI_ID 7
539 #define ASC_DEF_ISA_DMA_SPEED 4
540 #define ASC_INIT_STATE_BEG_GET_CFG 0x0001
541 #define ASC_INIT_STATE_END_GET_CFG 0x0002
542 #define ASC_INIT_STATE_BEG_SET_CFG 0x0004
543 #define ASC_INIT_STATE_END_SET_CFG 0x0008
544 #define ASC_INIT_STATE_BEG_LOAD_MC 0x0010
545 #define ASC_INIT_STATE_END_LOAD_MC 0x0020
546 #define ASC_INIT_STATE_BEG_INQUIRY 0x0040
547 #define ASC_INIT_STATE_END_INQUIRY 0x0080
548 #define ASC_INIT_RESET_SCSI_DONE 0x0100
549 #define ASC_INIT_STATE_WITHOUT_EEP 0x8000
550 #define ASC_BUG_FIX_IF_NOT_DWB 0x0001
551 #define ASC_BUG_FIX_ASYN_USE_SYN 0x0002
552 #define ASC_MIN_TAGGED_CMD 7
553 #define ASC_MAX_SCSI_RESET_WAIT 30
554 #define ASC_OVERRUN_BSIZE 64
555
556 struct asc_dvc_var; /* Forward Declaration. */
557
558 typedef struct asc_dvc_var {
559 PortAddr iop_base;
560 ushort err_code;
561 ushort dvc_cntl;
562 ushort bug_fix_cntl;
563 ushort bus_type;
564 ASC_SCSI_BIT_ID_TYPE init_sdtr;
565 ASC_SCSI_BIT_ID_TYPE sdtr_done;
566 ASC_SCSI_BIT_ID_TYPE use_tagged_qng;
567 ASC_SCSI_BIT_ID_TYPE unit_not_ready;
568 ASC_SCSI_BIT_ID_TYPE queue_full_or_busy;
569 ASC_SCSI_BIT_ID_TYPE start_motor;
570 uchar *overrun_buf;
571 dma_addr_t overrun_dma;
572 uchar scsi_reset_wait;
573 uchar chip_no;
574 char is_in_int;
575 uchar max_total_qng;
576 uchar cur_total_qng;
577 uchar in_critical_cnt;
578 uchar last_q_shortage;
579 ushort init_state;
580 uchar cur_dvc_qng[ASC_MAX_TID + 1];
581 uchar max_dvc_qng[ASC_MAX_TID + 1];
582 ASC_SCSI_Q *scsiq_busy_head[ASC_MAX_TID + 1];
583 ASC_SCSI_Q *scsiq_busy_tail[ASC_MAX_TID + 1];
584 const uchar *sdtr_period_tbl;
585 ASC_DVC_CFG *cfg;
586 ASC_SCSI_BIT_ID_TYPE pci_fix_asyn_xfer_always;
587 char redo_scam;
588 ushort res2;
589 uchar dos_int13_table[ASC_MAX_TID + 1];
590 ASC_DCNT max_dma_count;
591 ASC_SCSI_BIT_ID_TYPE no_scam;
592 ASC_SCSI_BIT_ID_TYPE pci_fix_asyn_xfer;
593 uchar min_sdtr_index;
594 uchar max_sdtr_index;
595 struct asc_board *drv_ptr;
596 int ptr_map_count;
597 void **ptr_map;
598 ASC_DCNT uc_break;
599 } ASC_DVC_VAR;
600
601 typedef struct asc_dvc_inq_info {
602 uchar type[ASC_MAX_TID + 1][ASC_MAX_LUN + 1];
603 } ASC_DVC_INQ_INFO;
604
605 typedef struct asc_cap_info {
606 ASC_DCNT lba;
607 ASC_DCNT blk_size;
608 } ASC_CAP_INFO;
609
610 typedef struct asc_cap_info_array {
611 ASC_CAP_INFO cap_info[ASC_MAX_TID + 1][ASC_MAX_LUN + 1];
612 } ASC_CAP_INFO_ARRAY;
613
614 #define ASC_MCNTL_NO_SEL_TIMEOUT (ushort)0x0001
615 #define ASC_MCNTL_NULL_TARGET (ushort)0x0002
616 #define ASC_CNTL_INITIATOR (ushort)0x0001
617 #define ASC_CNTL_BIOS_GT_1GB (ushort)0x0002
618 #define ASC_CNTL_BIOS_GT_2_DISK (ushort)0x0004
619 #define ASC_CNTL_BIOS_REMOVABLE (ushort)0x0008
620 #define ASC_CNTL_NO_SCAM (ushort)0x0010
621 #define ASC_CNTL_INT_MULTI_Q (ushort)0x0080
622 #define ASC_CNTL_NO_LUN_SUPPORT (ushort)0x0040
623 #define ASC_CNTL_NO_VERIFY_COPY (ushort)0x0100
624 #define ASC_CNTL_RESET_SCSI (ushort)0x0200
625 #define ASC_CNTL_INIT_INQUIRY (ushort)0x0400
626 #define ASC_CNTL_INIT_VERBOSE (ushort)0x0800
627 #define ASC_CNTL_SCSI_PARITY (ushort)0x1000
628 #define ASC_CNTL_BURST_MODE (ushort)0x2000
629 #define ASC_CNTL_SDTR_ENABLE_ULTRA (ushort)0x4000
630 #define ASC_EEP_DVC_CFG_BEG_VL 2
631 #define ASC_EEP_MAX_DVC_ADDR_VL 15
632 #define ASC_EEP_DVC_CFG_BEG 32
633 #define ASC_EEP_MAX_DVC_ADDR 45
634 #define ASC_EEP_MAX_RETRY 20
635
636 /*
637 * These macros keep the chip SCSI id and ISA DMA speed
638 * bitfields in board order. C bitfields aren't portable
639 * between big and little-endian platforms so they are
640 * not used.
641 */
642
643 #define ASC_EEP_GET_CHIP_ID(cfg) ((cfg)->id_speed & 0x0f)
644 #define ASC_EEP_GET_DMA_SPD(cfg) (((cfg)->id_speed & 0xf0) >> 4)
645 #define ASC_EEP_SET_CHIP_ID(cfg, sid) \
646 ((cfg)->id_speed = ((cfg)->id_speed & 0xf0) | ((sid) & ASC_MAX_TID))
647 #define ASC_EEP_SET_DMA_SPD(cfg, spd) \
648 ((cfg)->id_speed = ((cfg)->id_speed & 0x0f) | ((spd) & 0x0f) << 4)
649
650 typedef struct asceep_config {
651 ushort cfg_lsw;
652 ushort cfg_msw;
653 uchar init_sdtr;
654 uchar disc_enable;
655 uchar use_cmd_qng;
656 uchar start_motor;
657 uchar max_total_qng;
658 uchar max_tag_qng;
659 uchar bios_scan;
660 uchar power_up_wait;
661 uchar no_scam;
662 uchar id_speed; /* low order 4 bits is chip scsi id */
663 /* high order 4 bits is isa dma speed */
664 uchar dos_int13_table[ASC_MAX_TID + 1];
665 uchar adapter_info[6];
666 ushort cntl;
667 ushort chksum;
668 } ASCEEP_CONFIG;
669
670 #define ASC_EEP_CMD_READ 0x80
671 #define ASC_EEP_CMD_WRITE 0x40
672 #define ASC_EEP_CMD_WRITE_ABLE 0x30
673 #define ASC_EEP_CMD_WRITE_DISABLE 0x00
674 #define ASCV_MSGOUT_BEG 0x0000
675 #define ASCV_MSGOUT_SDTR_PERIOD (ASCV_MSGOUT_BEG+3)
676 #define ASCV_MSGOUT_SDTR_OFFSET (ASCV_MSGOUT_BEG+4)
677 #define ASCV_BREAK_SAVED_CODE (ushort)0x0006
678 #define ASCV_MSGIN_BEG (ASCV_MSGOUT_BEG+8)
679 #define ASCV_MSGIN_SDTR_PERIOD (ASCV_MSGIN_BEG+3)
680 #define ASCV_MSGIN_SDTR_OFFSET (ASCV_MSGIN_BEG+4)
681 #define ASCV_SDTR_DATA_BEG (ASCV_MSGIN_BEG+8)
682 #define ASCV_SDTR_DONE_BEG (ASCV_SDTR_DATA_BEG+8)
683 #define ASCV_MAX_DVC_QNG_BEG (ushort)0x0020
684 #define ASCV_BREAK_ADDR (ushort)0x0028
685 #define ASCV_BREAK_NOTIFY_COUNT (ushort)0x002A
686 #define ASCV_BREAK_CONTROL (ushort)0x002C
687 #define ASCV_BREAK_HIT_COUNT (ushort)0x002E
688
689 #define ASCV_ASCDVC_ERR_CODE_W (ushort)0x0030
690 #define ASCV_MCODE_CHKSUM_W (ushort)0x0032
691 #define ASCV_MCODE_SIZE_W (ushort)0x0034
692 #define ASCV_STOP_CODE_B (ushort)0x0036
693 #define ASCV_DVC_ERR_CODE_B (ushort)0x0037
694 #define ASCV_OVERRUN_PADDR_D (ushort)0x0038
695 #define ASCV_OVERRUN_BSIZE_D (ushort)0x003C
696 #define ASCV_HALTCODE_W (ushort)0x0040
697 #define ASCV_CHKSUM_W (ushort)0x0042
698 #define ASCV_MC_DATE_W (ushort)0x0044
699 #define ASCV_MC_VER_W (ushort)0x0046
700 #define ASCV_NEXTRDY_B (ushort)0x0048
701 #define ASCV_DONENEXT_B (ushort)0x0049
702 #define ASCV_USE_TAGGED_QNG_B (ushort)0x004A
703 #define ASCV_SCSIBUSY_B (ushort)0x004B
704 #define ASCV_Q_DONE_IN_PROGRESS_B (ushort)0x004C
705 #define ASCV_CURCDB_B (ushort)0x004D
706 #define ASCV_RCLUN_B (ushort)0x004E
707 #define ASCV_BUSY_QHEAD_B (ushort)0x004F
708 #define ASCV_DISC1_QHEAD_B (ushort)0x0050
709 #define ASCV_DISC_ENABLE_B (ushort)0x0052
710 #define ASCV_CAN_TAGGED_QNG_B (ushort)0x0053
711 #define ASCV_HOSTSCSI_ID_B (ushort)0x0055
712 #define ASCV_MCODE_CNTL_B (ushort)0x0056
713 #define ASCV_NULL_TARGET_B (ushort)0x0057
714 #define ASCV_FREE_Q_HEAD_W (ushort)0x0058
715 #define ASCV_DONE_Q_TAIL_W (ushort)0x005A
716 #define ASCV_FREE_Q_HEAD_B (ushort)(ASCV_FREE_Q_HEAD_W+1)
717 #define ASCV_DONE_Q_TAIL_B (ushort)(ASCV_DONE_Q_TAIL_W+1)
718 #define ASCV_HOST_FLAG_B (ushort)0x005D
719 #define ASCV_TOTAL_READY_Q_B (ushort)0x0064
720 #define ASCV_VER_SERIAL_B (ushort)0x0065
721 #define ASCV_HALTCODE_SAVED_W (ushort)0x0066
722 #define ASCV_WTM_FLAG_B (ushort)0x0068
723 #define ASCV_RISC_FLAG_B (ushort)0x006A
724 #define ASCV_REQ_SG_LIST_QP (ushort)0x006B
725 #define ASC_HOST_FLAG_IN_ISR 0x01
726 #define ASC_HOST_FLAG_ACK_INT 0x02
727 #define ASC_RISC_FLAG_GEN_INT 0x01
728 #define ASC_RISC_FLAG_REQ_SG_LIST 0x02
729 #define IOP_CTRL (0x0F)
730 #define IOP_STATUS (0x0E)
731 #define IOP_INT_ACK IOP_STATUS
732 #define IOP_REG_IFC (0x0D)
733 #define IOP_SYN_OFFSET (0x0B)
734 #define IOP_EXTRA_CONTROL (0x0D)
735 #define IOP_REG_PC (0x0C)
736 #define IOP_RAM_ADDR (0x0A)
737 #define IOP_RAM_DATA (0x08)
738 #define IOP_EEP_DATA (0x06)
739 #define IOP_EEP_CMD (0x07)
740 #define IOP_VERSION (0x03)
741 #define IOP_CONFIG_HIGH (0x04)
742 #define IOP_CONFIG_LOW (0x02)
743 #define IOP_SIG_BYTE (0x01)
744 #define IOP_SIG_WORD (0x00)
745 #define IOP_REG_DC1 (0x0E)
746 #define IOP_REG_DC0 (0x0C)
747 #define IOP_REG_SB (0x0B)
748 #define IOP_REG_DA1 (0x0A)
749 #define IOP_REG_DA0 (0x08)
750 #define IOP_REG_SC (0x09)
751 #define IOP_DMA_SPEED (0x07)
752 #define IOP_REG_FLAG (0x07)
753 #define IOP_FIFO_H (0x06)
754 #define IOP_FIFO_L (0x04)
755 #define IOP_REG_ID (0x05)
756 #define IOP_REG_QP (0x03)
757 #define IOP_REG_IH (0x02)
758 #define IOP_REG_IX (0x01)
759 #define IOP_REG_AX (0x00)
760 #define IFC_REG_LOCK (0x00)
761 #define IFC_REG_UNLOCK (0x09)
762 #define IFC_WR_EN_FILTER (0x10)
763 #define IFC_RD_NO_EEPROM (0x10)
764 #define IFC_SLEW_RATE (0x20)
765 #define IFC_ACT_NEG (0x40)
766 #define IFC_INP_FILTER (0x80)
767 #define IFC_INIT_DEFAULT (IFC_ACT_NEG | IFC_REG_UNLOCK)
768 #define SC_SEL (uchar)(0x80)
769 #define SC_BSY (uchar)(0x40)
770 #define SC_ACK (uchar)(0x20)
771 #define SC_REQ (uchar)(0x10)
772 #define SC_ATN (uchar)(0x08)
773 #define SC_IO (uchar)(0x04)
774 #define SC_CD (uchar)(0x02)
775 #define SC_MSG (uchar)(0x01)
776 #define SEC_SCSI_CTL (uchar)(0x80)
777 #define SEC_ACTIVE_NEGATE (uchar)(0x40)
778 #define SEC_SLEW_RATE (uchar)(0x20)
779 #define SEC_ENABLE_FILTER (uchar)(0x10)
780 #define ASC_HALT_EXTMSG_IN (ushort)0x8000
781 #define ASC_HALT_CHK_CONDITION (ushort)0x8100
782 #define ASC_HALT_SS_QUEUE_FULL (ushort)0x8200
783 #define ASC_HALT_DISABLE_ASYN_USE_SYN_FIX (ushort)0x8300
784 #define ASC_HALT_ENABLE_ASYN_USE_SYN_FIX (ushort)0x8400
785 #define ASC_HALT_SDTR_REJECTED (ushort)0x4000
786 #define ASC_HALT_HOST_COPY_SG_LIST_TO_RISC ( ushort )0x2000
787 #define ASC_MAX_QNO 0xF8
788 #define ASC_DATA_SEC_BEG (ushort)0x0080
789 #define ASC_DATA_SEC_END (ushort)0x0080
790 #define ASC_CODE_SEC_BEG (ushort)0x0080
791 #define ASC_CODE_SEC_END (ushort)0x0080
792 #define ASC_QADR_BEG (0x4000)
793 #define ASC_QADR_USED (ushort)(ASC_MAX_QNO * 64)
794 #define ASC_QADR_END (ushort)0x7FFF
795 #define ASC_QLAST_ADR (ushort)0x7FC0
796 #define ASC_QBLK_SIZE 0x40
797 #define ASC_BIOS_DATA_QBEG 0xF8
798 #define ASC_MIN_ACTIVE_QNO 0x01
799 #define ASC_QLINK_END 0xFF
800 #define ASC_EEPROM_WORDS 0x10
801 #define ASC_MAX_MGS_LEN 0x10
802 #define ASC_BIOS_ADDR_DEF 0xDC00
803 #define ASC_BIOS_SIZE 0x3800
804 #define ASC_BIOS_RAM_OFF 0x3800
805 #define ASC_BIOS_RAM_SIZE 0x800
806 #define ASC_BIOS_MIN_ADDR 0xC000
807 #define ASC_BIOS_MAX_ADDR 0xEC00
808 #define ASC_BIOS_BANK_SIZE 0x0400
809 #define ASC_MCODE_START_ADDR 0x0080
810 #define ASC_CFG0_HOST_INT_ON 0x0020
811 #define ASC_CFG0_BIOS_ON 0x0040
812 #define ASC_CFG0_VERA_BURST_ON 0x0080
813 #define ASC_CFG0_SCSI_PARITY_ON 0x0800
814 #define ASC_CFG1_SCSI_TARGET_ON 0x0080
815 #define ASC_CFG1_LRAM_8BITS_ON 0x0800
816 #define ASC_CFG_MSW_CLR_MASK 0x3080
817 #define CSW_TEST1 (ASC_CS_TYPE)0x8000
818 #define CSW_AUTO_CONFIG (ASC_CS_TYPE)0x4000
819 #define CSW_RESERVED1 (ASC_CS_TYPE)0x2000
820 #define CSW_IRQ_WRITTEN (ASC_CS_TYPE)0x1000
821 #define CSW_33MHZ_SELECTED (ASC_CS_TYPE)0x0800
822 #define CSW_TEST2 (ASC_CS_TYPE)0x0400
823 #define CSW_TEST3 (ASC_CS_TYPE)0x0200
824 #define CSW_RESERVED2 (ASC_CS_TYPE)0x0100
825 #define CSW_DMA_DONE (ASC_CS_TYPE)0x0080
826 #define CSW_FIFO_RDY (ASC_CS_TYPE)0x0040
827 #define CSW_EEP_READ_DONE (ASC_CS_TYPE)0x0020
828 #define CSW_HALTED (ASC_CS_TYPE)0x0010
829 #define CSW_SCSI_RESET_ACTIVE (ASC_CS_TYPE)0x0008
830 #define CSW_PARITY_ERR (ASC_CS_TYPE)0x0004
831 #define CSW_SCSI_RESET_LATCH (ASC_CS_TYPE)0x0002
832 #define CSW_INT_PENDING (ASC_CS_TYPE)0x0001
833 #define CIW_CLR_SCSI_RESET_INT (ASC_CS_TYPE)0x1000
834 #define CIW_INT_ACK (ASC_CS_TYPE)0x0100
835 #define CIW_TEST1 (ASC_CS_TYPE)0x0200
836 #define CIW_TEST2 (ASC_CS_TYPE)0x0400
837 #define CIW_SEL_33MHZ (ASC_CS_TYPE)0x0800
838 #define CIW_IRQ_ACT (ASC_CS_TYPE)0x1000
839 #define CC_CHIP_RESET (uchar)0x80
840 #define CC_SCSI_RESET (uchar)0x40
841 #define CC_HALT (uchar)0x20
842 #define CC_SINGLE_STEP (uchar)0x10
843 #define CC_DMA_ABLE (uchar)0x08
844 #define CC_TEST (uchar)0x04
845 #define CC_BANK_ONE (uchar)0x02
846 #define CC_DIAG (uchar)0x01
847 #define ASC_1000_ID0W 0x04C1
848 #define ASC_1000_ID0W_FIX 0x00C1
849 #define ASC_1000_ID1B 0x25
850 #define ASC_EISA_REV_IOP_MASK (0x0C83)
851 #define ASC_EISA_CFG_IOP_MASK (0x0C86)
852 #define ASC_GET_EISA_SLOT(iop) (PortAddr)((iop) & 0xF000)
853 #define INS_HALTINT (ushort)0x6281
854 #define INS_HALT (ushort)0x6280
855 #define INS_SINT (ushort)0x6200
856 #define INS_RFLAG_WTM (ushort)0x7380
857 #define ASC_MC_SAVE_CODE_WSIZE 0x500
858 #define ASC_MC_SAVE_DATA_WSIZE 0x40
859
860 typedef struct asc_mc_saved {
861 ushort data[ASC_MC_SAVE_DATA_WSIZE];
862 ushort code[ASC_MC_SAVE_CODE_WSIZE];
863 } ASC_MC_SAVED;
864
865 #define AscGetQDoneInProgress(port) AscReadLramByte((port), ASCV_Q_DONE_IN_PROGRESS_B)
866 #define AscPutQDoneInProgress(port, val) AscWriteLramByte((port), ASCV_Q_DONE_IN_PROGRESS_B, val)
867 #define AscGetVarFreeQHead(port) AscReadLramWord((port), ASCV_FREE_Q_HEAD_W)
868 #define AscGetVarDoneQTail(port) AscReadLramWord((port), ASCV_DONE_Q_TAIL_W)
869 #define AscPutVarFreeQHead(port, val) AscWriteLramWord((port), ASCV_FREE_Q_HEAD_W, val)
870 #define AscPutVarDoneQTail(port, val) AscWriteLramWord((port), ASCV_DONE_Q_TAIL_W, val)
871 #define AscGetRiscVarFreeQHead(port) AscReadLramByte((port), ASCV_NEXTRDY_B)
872 #define AscGetRiscVarDoneQTail(port) AscReadLramByte((port), ASCV_DONENEXT_B)
873 #define AscPutRiscVarFreeQHead(port, val) AscWriteLramByte((port), ASCV_NEXTRDY_B, val)
874 #define AscPutRiscVarDoneQTail(port, val) AscWriteLramByte((port), ASCV_DONENEXT_B, val)
875 #define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data))
876 #define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id))
877 #define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data)
878 #define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id))
879 #define AscGetChipSignatureByte(port) (uchar)inp((port)+IOP_SIG_BYTE)
880 #define AscGetChipSignatureWord(port) (ushort)inpw((port)+IOP_SIG_WORD)
881 #define AscGetChipVerNo(port) (uchar)inp((port)+IOP_VERSION)
882 #define AscGetChipCfgLsw(port) (ushort)inpw((port)+IOP_CONFIG_LOW)
883 #define AscGetChipCfgMsw(port) (ushort)inpw((port)+IOP_CONFIG_HIGH)
884 #define AscSetChipCfgLsw(port, data) outpw((port)+IOP_CONFIG_LOW, data)
885 #define AscSetChipCfgMsw(port, data) outpw((port)+IOP_CONFIG_HIGH, data)
886 #define AscGetChipEEPCmd(port) (uchar)inp((port)+IOP_EEP_CMD)
887 #define AscSetChipEEPCmd(port, data) outp((port)+IOP_EEP_CMD, data)
888 #define AscGetChipEEPData(port) (ushort)inpw((port)+IOP_EEP_DATA)
889 #define AscSetChipEEPData(port, data) outpw((port)+IOP_EEP_DATA, data)
890 #define AscGetChipLramAddr(port) (ushort)inpw((PortAddr)((port)+IOP_RAM_ADDR))
891 #define AscSetChipLramAddr(port, addr) outpw((PortAddr)((port)+IOP_RAM_ADDR), addr)
892 #define AscGetChipLramData(port) (ushort)inpw((port)+IOP_RAM_DATA)
893 #define AscSetChipLramData(port, data) outpw((port)+IOP_RAM_DATA, data)
894 #define AscGetChipIFC(port) (uchar)inp((port)+IOP_REG_IFC)
895 #define AscSetChipIFC(port, data) outp((port)+IOP_REG_IFC, data)
896 #define AscGetChipStatus(port) (ASC_CS_TYPE)inpw((port)+IOP_STATUS)
897 #define AscSetChipStatus(port, cs_val) outpw((port)+IOP_STATUS, cs_val)
898 #define AscGetChipControl(port) (uchar)inp((port)+IOP_CTRL)
899 #define AscSetChipControl(port, cc_val) outp((port)+IOP_CTRL, cc_val)
900 #define AscGetChipSyn(port) (uchar)inp((port)+IOP_SYN_OFFSET)
901 #define AscSetChipSyn(port, data) outp((port)+IOP_SYN_OFFSET, data)
902 #define AscSetPCAddr(port, data) outpw((port)+IOP_REG_PC, data)
903 #define AscGetPCAddr(port) (ushort)inpw((port)+IOP_REG_PC)
904 #define AscIsIntPending(port) (AscGetChipStatus(port) & (CSW_INT_PENDING | CSW_SCSI_RESET_LATCH))
905 #define AscGetChipScsiID(port) ((AscGetChipCfgLsw(port) >> 8) & ASC_MAX_TID)
906 #define AscGetExtraControl(port) (uchar)inp((port)+IOP_EXTRA_CONTROL)
907 #define AscSetExtraControl(port, data) outp((port)+IOP_EXTRA_CONTROL, data)
908 #define AscReadChipAX(port) (ushort)inpw((port)+IOP_REG_AX)
909 #define AscWriteChipAX(port, data) outpw((port)+IOP_REG_AX, data)
910 #define AscReadChipIX(port) (uchar)inp((port)+IOP_REG_IX)
911 #define AscWriteChipIX(port, data) outp((port)+IOP_REG_IX, data)
912 #define AscReadChipIH(port) (ushort)inpw((port)+IOP_REG_IH)
913 #define AscWriteChipIH(port, data) outpw((port)+IOP_REG_IH, data)
914 #define AscReadChipQP(port) (uchar)inp((port)+IOP_REG_QP)
915 #define AscWriteChipQP(port, data) outp((port)+IOP_REG_QP, data)
916 #define AscReadChipFIFO_L(port) (ushort)inpw((port)+IOP_REG_FIFO_L)
917 #define AscWriteChipFIFO_L(port, data) outpw((port)+IOP_REG_FIFO_L, data)
918 #define AscReadChipFIFO_H(port) (ushort)inpw((port)+IOP_REG_FIFO_H)
919 #define AscWriteChipFIFO_H(port, data) outpw((port)+IOP_REG_FIFO_H, data)
920 #define AscReadChipDmaSpeed(port) (uchar)inp((port)+IOP_DMA_SPEED)
921 #define AscWriteChipDmaSpeed(port, data) outp((port)+IOP_DMA_SPEED, data)
922 #define AscReadChipDA0(port) (ushort)inpw((port)+IOP_REG_DA0)
923 #define AscWriteChipDA0(port) outpw((port)+IOP_REG_DA0, data)
924 #define AscReadChipDA1(port) (ushort)inpw((port)+IOP_REG_DA1)
925 #define AscWriteChipDA1(port) outpw((port)+IOP_REG_DA1, data)
926 #define AscReadChipDC0(port) (ushort)inpw((port)+IOP_REG_DC0)
927 #define AscWriteChipDC0(port) outpw((port)+IOP_REG_DC0, data)
928 #define AscReadChipDC1(port) (ushort)inpw((port)+IOP_REG_DC1)
929 #define AscWriteChipDC1(port) outpw((port)+IOP_REG_DC1, data)
930 #define AscReadChipDvcID(port) (uchar)inp((port)+IOP_REG_ID)
931 #define AscWriteChipDvcID(port, data) outp((port)+IOP_REG_ID, data)
932
933 /*
934 * Portable Data Types
935 *
936 * Any instance where a 32-bit long or pointer type is assumed
937 * for precision or HW defined structures, the following define
938 * types must be used. In Linux the char, short, and int types
939 * are all consistent at 8, 16, and 32 bits respectively. Pointers
940 * and long types are 64 bits on Alpha and UltraSPARC.
941 */
942 #define ADV_PADDR __u32 /* Physical address data type. */
943 #define ADV_VADDR __u32 /* Virtual address data type. */
944 #define ADV_DCNT __u32 /* Unsigned Data count type. */
945 #define ADV_SDCNT __s32 /* Signed Data count type. */
946
947 /*
948 * These macros are used to convert a virtual address to a
949 * 32-bit value. This currently can be used on Linux Alpha
950 * which uses 64-bit virtual address but a 32-bit bus address.
951 * This is likely to break in the future, but doing this now
952 * will give us time to change the HW and FW to handle 64-bit
953 * addresses.
954 */
955 #define ADV_VADDR_TO_U32 virt_to_bus
956 #define ADV_U32_TO_VADDR bus_to_virt
957
958 #define AdvPortAddr void __iomem * /* Virtual memory address size */
959
960 /*
961 * Define Adv Library required memory access macros.
962 */
963 #define ADV_MEM_READB(addr) readb(addr)
964 #define ADV_MEM_READW(addr) readw(addr)
965 #define ADV_MEM_WRITEB(addr, byte) writeb(byte, addr)
966 #define ADV_MEM_WRITEW(addr, word) writew(word, addr)
967 #define ADV_MEM_WRITEDW(addr, dword) writel(dword, addr)
968
969 #define ADV_CARRIER_COUNT (ASC_DEF_MAX_HOST_QNG + 15)
970
971 /*
972 * Define total number of simultaneous maximum element scatter-gather
973 * request blocks per wide adapter. ASC_DEF_MAX_HOST_QNG (253) is the
974 * maximum number of outstanding commands per wide host adapter. Each
975 * command uses one or more ADV_SG_BLOCK each with 15 scatter-gather
976 * elements. Allow each command to have at least one ADV_SG_BLOCK structure.
977 * This allows about 15 commands to have the maximum 17 ADV_SG_BLOCK
978 * structures or 255 scatter-gather elements.
979 */
980 #define ADV_TOT_SG_BLOCK ASC_DEF_MAX_HOST_QNG
981
982 /*
983 * Define maximum number of scatter-gather elements per request.
984 */
985 #define ADV_MAX_SG_LIST 255
986 #define NO_OF_SG_PER_BLOCK 15
987
988 #define ADV_EEP_DVC_CFG_BEGIN (0x00)
989 #define ADV_EEP_DVC_CFG_END (0x15)
990 #define ADV_EEP_DVC_CTL_BEGIN (0x16) /* location of OEM name */
991 #define ADV_EEP_MAX_WORD_ADDR (0x1E)
992
993 #define ADV_EEP_DELAY_MS 100
994
995 #define ADV_EEPROM_BIG_ENDIAN 0x8000 /* EEPROM Bit 15 */
996 #define ADV_EEPROM_BIOS_ENABLE 0x4000 /* EEPROM Bit 14 */
997 /*
998 * For the ASC3550 Bit 13 is Termination Polarity control bit.
999 * For later ICs Bit 13 controls whether the CIS (Card Information
1000 * Service Section) is loaded from EEPROM.
1001 */
1002 #define ADV_EEPROM_TERM_POL 0x2000 /* EEPROM Bit 13 */
1003 #define ADV_EEPROM_CIS_LD 0x2000 /* EEPROM Bit 13 */
1004 /*
1005 * ASC38C1600 Bit 11
1006 *
1007 * If EEPROM Bit 11 is 0 for Function 0, then Function 0 will specify
1008 * INT A in the PCI Configuration Space Int Pin field. If it is 1, then
1009 * Function 0 will specify INT B.
1010 *
1011 * If EEPROM Bit 11 is 0 for Function 1, then Function 1 will specify
1012 * INT B in the PCI Configuration Space Int Pin field. If it is 1, then
1013 * Function 1 will specify INT A.
1014 */
1015 #define ADV_EEPROM_INTAB 0x0800 /* EEPROM Bit 11 */
1016
1017 typedef struct adveep_3550_config {
1018 /* Word Offset, Description */
1019
1020 ushort cfg_lsw; /* 00 power up initialization */
1021 /* bit 13 set - Term Polarity Control */
1022 /* bit 14 set - BIOS Enable */
1023 /* bit 15 set - Big Endian Mode */
1024 ushort cfg_msw; /* 01 unused */
1025 ushort disc_enable; /* 02 disconnect enable */
1026 ushort wdtr_able; /* 03 Wide DTR able */
1027 ushort sdtr_able; /* 04 Synchronous DTR able */
1028 ushort start_motor; /* 05 send start up motor */
1029 ushort tagqng_able; /* 06 tag queuing able */
1030 ushort bios_scan; /* 07 BIOS device control */
1031 ushort scam_tolerant; /* 08 no scam */
1032
1033 uchar adapter_scsi_id; /* 09 Host Adapter ID */
1034 uchar bios_boot_delay; /* power up wait */
1035
1036 uchar scsi_reset_delay; /* 10 reset delay */
1037 uchar bios_id_lun; /* first boot device scsi id & lun */
1038 /* high nibble is lun */
1039 /* low nibble is scsi id */
1040
1041 uchar termination; /* 11 0 - automatic */
1042 /* 1 - low off / high off */
1043 /* 2 - low off / high on */
1044 /* 3 - low on / high on */
1045 /* There is no low on / high off */
1046
1047 uchar reserved1; /* reserved byte (not used) */
1048
1049 ushort bios_ctrl; /* 12 BIOS control bits */
1050 /* bit 0 BIOS don't act as initiator. */
1051 /* bit 1 BIOS > 1 GB support */
1052 /* bit 2 BIOS > 2 Disk Support */
1053 /* bit 3 BIOS don't support removables */
1054 /* bit 4 BIOS support bootable CD */
1055 /* bit 5 BIOS scan enabled */
1056 /* bit 6 BIOS support multiple LUNs */
1057 /* bit 7 BIOS display of message */
1058 /* bit 8 SCAM disabled */
1059 /* bit 9 Reset SCSI bus during init. */
1060 /* bit 10 */
1061 /* bit 11 No verbose initialization. */
1062 /* bit 12 SCSI parity enabled */
1063 /* bit 13 */
1064 /* bit 14 */
1065 /* bit 15 */
1066 ushort ultra_able; /* 13 ULTRA speed able */
1067 ushort reserved2; /* 14 reserved */
1068 uchar max_host_qng; /* 15 maximum host queuing */
1069 uchar max_dvc_qng; /* maximum per device queuing */
1070 ushort dvc_cntl; /* 16 control bit for driver */
1071 ushort bug_fix; /* 17 control bit for bug fix */
1072 ushort serial_number_word1; /* 18 Board serial number word 1 */
1073 ushort serial_number_word2; /* 19 Board serial number word 2 */
1074 ushort serial_number_word3; /* 20 Board serial number word 3 */
1075 ushort check_sum; /* 21 EEP check sum */
1076 uchar oem_name[16]; /* 22 OEM name */
1077 ushort dvc_err_code; /* 30 last device driver error code */
1078 ushort adv_err_code; /* 31 last uc and Adv Lib error code */
1079 ushort adv_err_addr; /* 32 last uc error address */
1080 ushort saved_dvc_err_code; /* 33 saved last dev. driver error code */
1081 ushort saved_adv_err_code; /* 34 saved last uc and Adv Lib error code */
1082 ushort saved_adv_err_addr; /* 35 saved last uc error address */
1083 ushort num_of_err; /* 36 number of error */
1084 } ADVEEP_3550_CONFIG;
1085
1086 typedef struct adveep_38C0800_config {
1087 /* Word Offset, Description */
1088
1089 ushort cfg_lsw; /* 00 power up initialization */
1090 /* bit 13 set - Load CIS */
1091 /* bit 14 set - BIOS Enable */
1092 /* bit 15 set - Big Endian Mode */
1093 ushort cfg_msw; /* 01 unused */
1094 ushort disc_enable; /* 02 disconnect enable */
1095 ushort wdtr_able; /* 03 Wide DTR able */
1096 ushort sdtr_speed1; /* 04 SDTR Speed TID 0-3 */
1097 ushort start_motor; /* 05 send start up motor */
1098 ushort tagqng_able; /* 06 tag queuing able */
1099 ushort bios_scan; /* 07 BIOS device control */
1100 ushort scam_tolerant; /* 08 no scam */
1101
1102 uchar adapter_scsi_id; /* 09 Host Adapter ID */
1103 uchar bios_boot_delay; /* power up wait */
1104
1105 uchar scsi_reset_delay; /* 10 reset delay */
1106 uchar bios_id_lun; /* first boot device scsi id & lun */
1107 /* high nibble is lun */
1108 /* low nibble is scsi id */
1109
1110 uchar termination_se; /* 11 0 - automatic */
1111 /* 1 - low off / high off */
1112 /* 2 - low off / high on */
1113 /* 3 - low on / high on */
1114 /* There is no low on / high off */
1115
1116 uchar termination_lvd; /* 11 0 - automatic */
1117 /* 1 - low off / high off */
1118 /* 2 - low off / high on */
1119 /* 3 - low on / high on */
1120 /* There is no low on / high off */
1121
1122 ushort bios_ctrl; /* 12 BIOS control bits */
1123 /* bit 0 BIOS don't act as initiator. */
1124 /* bit 1 BIOS > 1 GB support */
1125 /* bit 2 BIOS > 2 Disk Support */
1126 /* bit 3 BIOS don't support removables */
1127 /* bit 4 BIOS support bootable CD */
1128 /* bit 5 BIOS scan enabled */
1129 /* bit 6 BIOS support multiple LUNs */
1130 /* bit 7 BIOS display of message */
1131 /* bit 8 SCAM disabled */
1132 /* bit 9 Reset SCSI bus during init. */
1133 /* bit 10 */
1134 /* bit 11 No verbose initialization. */
1135 /* bit 12 SCSI parity enabled */
1136 /* bit 13 */
1137 /* bit 14 */
1138 /* bit 15 */
1139 ushort sdtr_speed2; /* 13 SDTR speed TID 4-7 */
1140 ushort sdtr_speed3; /* 14 SDTR speed TID 8-11 */
1141 uchar max_host_qng; /* 15 maximum host queueing */
1142 uchar max_dvc_qng; /* maximum per device queuing */
1143 ushort dvc_cntl; /* 16 control bit for driver */
1144 ushort sdtr_speed4; /* 17 SDTR speed 4 TID 12-15 */
1145 ushort serial_number_word1; /* 18 Board serial number word 1 */
1146 ushort serial_number_word2; /* 19 Board serial number word 2 */
1147 ushort serial_number_word3; /* 20 Board serial number word 3 */
1148 ushort check_sum; /* 21 EEP check sum */
1149 uchar oem_name[16]; /* 22 OEM name */
1150 ushort dvc_err_code; /* 30 last device driver error code */
1151 ushort adv_err_code; /* 31 last uc and Adv Lib error code */
1152 ushort adv_err_addr; /* 32 last uc error address */
1153 ushort saved_dvc_err_code; /* 33 saved last dev. driver error code */
1154 ushort saved_adv_err_code; /* 34 saved last uc and Adv Lib error code */
1155 ushort saved_adv_err_addr; /* 35 saved last uc error address */
1156 ushort reserved36; /* 36 reserved */
1157 ushort reserved37; /* 37 reserved */
1158 ushort reserved38; /* 38 reserved */
1159 ushort reserved39; /* 39 reserved */
1160 ushort reserved40; /* 40 reserved */
1161 ushort reserved41; /* 41 reserved */
1162 ushort reserved42; /* 42 reserved */
1163 ushort reserved43; /* 43 reserved */
1164 ushort reserved44; /* 44 reserved */
1165 ushort reserved45; /* 45 reserved */
1166 ushort reserved46; /* 46 reserved */
1167 ushort reserved47; /* 47 reserved */
1168 ushort reserved48; /* 48 reserved */
1169 ushort reserved49; /* 49 reserved */
1170 ushort reserved50; /* 50 reserved */
1171 ushort reserved51; /* 51 reserved */
1172 ushort reserved52; /* 52 reserved */
1173 ushort reserved53; /* 53 reserved */
1174 ushort reserved54; /* 54 reserved */
1175 ushort reserved55; /* 55 reserved */
1176 ushort cisptr_lsw; /* 56 CIS PTR LSW */
1177 ushort cisprt_msw; /* 57 CIS PTR MSW */
1178 ushort subsysvid; /* 58 SubSystem Vendor ID */
1179 ushort subsysid; /* 59 SubSystem ID */
1180 ushort reserved60; /* 60 reserved */
1181 ushort reserved61; /* 61 reserved */
1182 ushort reserved62; /* 62 reserved */
1183 ushort reserved63; /* 63 reserved */
1184 } ADVEEP_38C0800_CONFIG;
1185
1186 typedef struct adveep_38C1600_config {
1187 /* Word Offset, Description */
1188
1189 ushort cfg_lsw; /* 00 power up initialization */
1190 /* bit 11 set - Func. 0 INTB, Func. 1 INTA */
1191 /* clear - Func. 0 INTA, Func. 1 INTB */
1192 /* bit 13 set - Load CIS */
1193 /* bit 14 set - BIOS Enable */
1194 /* bit 15 set - Big Endian Mode */
1195 ushort cfg_msw; /* 01 unused */
1196 ushort disc_enable; /* 02 disconnect enable */
1197 ushort wdtr_able; /* 03 Wide DTR able */
1198 ushort sdtr_speed1; /* 04 SDTR Speed TID 0-3 */
1199 ushort start_motor; /* 05 send start up motor */
1200 ushort tagqng_able; /* 06 tag queuing able */
1201 ushort bios_scan; /* 07 BIOS device control */
1202 ushort scam_tolerant; /* 08 no scam */
1203
1204 uchar adapter_scsi_id; /* 09 Host Adapter ID */
1205 uchar bios_boot_delay; /* power up wait */
1206
1207 uchar scsi_reset_delay; /* 10 reset delay */
1208 uchar bios_id_lun; /* first boot device scsi id & lun */
1209 /* high nibble is lun */
1210 /* low nibble is scsi id */
1211
1212 uchar termination_se; /* 11 0 - automatic */
1213 /* 1 - low off / high off */
1214 /* 2 - low off / high on */
1215 /* 3 - low on / high on */
1216 /* There is no low on / high off */
1217
1218 uchar termination_lvd; /* 11 0 - automatic */
1219 /* 1 - low off / high off */
1220 /* 2 - low off / high on */
1221 /* 3 - low on / high on */
1222 /* There is no low on / high off */
1223
1224 ushort bios_ctrl; /* 12 BIOS control bits */
1225 /* bit 0 BIOS don't act as initiator. */
1226 /* bit 1 BIOS > 1 GB support */
1227 /* bit 2 BIOS > 2 Disk Support */
1228 /* bit 3 BIOS don't support removables */
1229 /* bit 4 BIOS support bootable CD */
1230 /* bit 5 BIOS scan enabled */
1231 /* bit 6 BIOS support multiple LUNs */
1232 /* bit 7 BIOS display of message */
1233 /* bit 8 SCAM disabled */
1234 /* bit 9 Reset SCSI bus during init. */
1235 /* bit 10 Basic Integrity Checking disabled */
1236 /* bit 11 No verbose initialization. */
1237 /* bit 12 SCSI parity enabled */
1238 /* bit 13 AIPP (Asyn. Info. Ph. Prot.) dis. */
1239 /* bit 14 */
1240 /* bit 15 */
1241 ushort sdtr_speed2; /* 13 SDTR speed TID 4-7 */
1242 ushort sdtr_speed3; /* 14 SDTR speed TID 8-11 */
1243 uchar max_host_qng; /* 15 maximum host queueing */
1244 uchar max_dvc_qng; /* maximum per device queuing */
1245 ushort dvc_cntl; /* 16 control bit for driver */
1246 ushort sdtr_speed4; /* 17 SDTR speed 4 TID 12-15 */
1247 ushort serial_number_word1; /* 18 Board serial number word 1 */
1248 ushort serial_number_word2; /* 19 Board serial number word 2 */
1249 ushort serial_number_word3; /* 20 Board serial number word 3 */
1250 ushort check_sum; /* 21 EEP check sum */
1251 uchar oem_name[16]; /* 22 OEM name */
1252 ushort dvc_err_code; /* 30 last device driver error code */
1253 ushort adv_err_code; /* 31 last uc and Adv Lib error code */
1254 ushort adv_err_addr; /* 32 last uc error address */
1255 ushort saved_dvc_err_code; /* 33 saved last dev. driver error code */
1256 ushort saved_adv_err_code; /* 34 saved last uc and Adv Lib error code */
1257 ushort saved_adv_err_addr; /* 35 saved last uc error address */
1258 ushort reserved36; /* 36 reserved */
1259 ushort reserved37; /* 37 reserved */
1260 ushort reserved38; /* 38 reserved */
1261 ushort reserved39; /* 39 reserved */
1262 ushort reserved40; /* 40 reserved */
1263 ushort reserved41; /* 41 reserved */
1264 ushort reserved42; /* 42 reserved */
1265 ushort reserved43; /* 43 reserved */
1266 ushort reserved44; /* 44 reserved */
1267 ushort reserved45; /* 45 reserved */
1268 ushort reserved46; /* 46 reserved */
1269 ushort reserved47; /* 47 reserved */
1270 ushort reserved48; /* 48 reserved */
1271 ushort reserved49; /* 49 reserved */
1272 ushort reserved50; /* 50 reserved */
1273 ushort reserved51; /* 51 reserved */
1274 ushort reserved52; /* 52 reserved */
1275 ushort reserved53; /* 53 reserved */
1276 ushort reserved54; /* 54 reserved */
1277 ushort reserved55; /* 55 reserved */
1278 ushort cisptr_lsw; /* 56 CIS PTR LSW */
1279 ushort cisprt_msw; /* 57 CIS PTR MSW */
1280 ushort subsysvid; /* 58 SubSystem Vendor ID */
1281 ushort subsysid; /* 59 SubSystem ID */
1282 ushort reserved60; /* 60 reserved */
1283 ushort reserved61; /* 61 reserved */
1284 ushort reserved62; /* 62 reserved */
1285 ushort reserved63; /* 63 reserved */
1286 } ADVEEP_38C1600_CONFIG;
1287
1288 /*
1289 * EEPROM Commands
1290 */
1291 #define ASC_EEP_CMD_DONE 0x0200
1292
1293 /* bios_ctrl */
1294 #define BIOS_CTRL_BIOS 0x0001
1295 #define BIOS_CTRL_EXTENDED_XLAT 0x0002
1296 #define BIOS_CTRL_GT_2_DISK 0x0004
1297 #define BIOS_CTRL_BIOS_REMOVABLE 0x0008
1298 #define BIOS_CTRL_BOOTABLE_CD 0x0010
1299 #define BIOS_CTRL_MULTIPLE_LUN 0x0040
1300 #define BIOS_CTRL_DISPLAY_MSG 0x0080
1301 #define BIOS_CTRL_NO_SCAM 0x0100
1302 #define BIOS_CTRL_RESET_SCSI_BUS 0x0200
1303 #define BIOS_CTRL_INIT_VERBOSE 0x0800
1304 #define BIOS_CTRL_SCSI_PARITY 0x1000
1305 #define BIOS_CTRL_AIPP_DIS 0x2000
1306
1307 #define ADV_3550_MEMSIZE 0x2000 /* 8 KB Internal Memory */
1308
1309 #define ADV_38C0800_MEMSIZE 0x4000 /* 16 KB Internal Memory */
1310
1311 /*
1312 * XXX - Since ASC38C1600 Rev.3 has a local RAM failure issue, there is
1313 * a special 16K Adv Library and Microcode version. After the issue is
1314 * resolved, should restore 32K support.
1315 *
1316 * #define ADV_38C1600_MEMSIZE 0x8000L * 32 KB Internal Memory *
1317 */
1318 #define ADV_38C1600_MEMSIZE 0x4000 /* 16 KB Internal Memory */
1319
1320 /*
1321 * Byte I/O register address from base of 'iop_base'.
1322 */
1323 #define IOPB_INTR_STATUS_REG 0x00
1324 #define IOPB_CHIP_ID_1 0x01
1325 #define IOPB_INTR_ENABLES 0x02
1326 #define IOPB_CHIP_TYPE_REV 0x03
1327 #define IOPB_RES_ADDR_4 0x04
1328 #define IOPB_RES_ADDR_5 0x05
1329 #define IOPB_RAM_DATA 0x06
1330 #define IOPB_RES_ADDR_7 0x07
1331 #define IOPB_FLAG_REG 0x08
1332 #define IOPB_RES_ADDR_9 0x09
1333 #define IOPB_RISC_CSR 0x0A
1334 #define IOPB_RES_ADDR_B 0x0B
1335 #define IOPB_RES_ADDR_C 0x0C
1336 #define IOPB_RES_ADDR_D 0x0D
1337 #define IOPB_SOFT_OVER_WR 0x0E
1338 #define IOPB_RES_ADDR_F 0x0F
1339 #define IOPB_MEM_CFG 0x10
1340 #define IOPB_RES_ADDR_11 0x11
1341 #define IOPB_GPIO_DATA 0x12
1342 #define IOPB_RES_ADDR_13 0x13
1343 #define IOPB_FLASH_PAGE 0x14
1344 #define IOPB_RES_ADDR_15 0x15
1345 #define IOPB_GPIO_CNTL 0x16
1346 #define IOPB_RES_ADDR_17 0x17
1347 #define IOPB_FLASH_DATA 0x18
1348 #define IOPB_RES_ADDR_19 0x19
1349 #define IOPB_RES_ADDR_1A 0x1A
1350 #define IOPB_RES_ADDR_1B 0x1B
1351 #define IOPB_RES_ADDR_1C 0x1C
1352 #define IOPB_RES_ADDR_1D 0x1D
1353 #define IOPB_RES_ADDR_1E 0x1E
1354 #define IOPB_RES_ADDR_1F 0x1F
1355 #define IOPB_DMA_CFG0 0x20
1356 #define IOPB_DMA_CFG1 0x21
1357 #define IOPB_TICKLE 0x22
1358 #define IOPB_DMA_REG_WR 0x23
1359 #define IOPB_SDMA_STATUS 0x24
1360 #define IOPB_SCSI_BYTE_CNT 0x25
1361 #define IOPB_HOST_BYTE_CNT 0x26
1362 #define IOPB_BYTE_LEFT_TO_XFER 0x27
1363 #define IOPB_BYTE_TO_XFER_0 0x28
1364 #define IOPB_BYTE_TO_XFER_1 0x29
1365 #define IOPB_BYTE_TO_XFER_2 0x2A
1366 #define IOPB_BYTE_TO_XFER_3 0x2B
1367 #define IOPB_ACC_GRP 0x2C
1368 #define IOPB_RES_ADDR_2D 0x2D
1369 #define IOPB_DEV_ID 0x2E
1370 #define IOPB_RES_ADDR_2F 0x2F
1371 #define IOPB_SCSI_DATA 0x30
1372 #define IOPB_RES_ADDR_31 0x31
1373 #define IOPB_RES_ADDR_32 0x32
1374 #define IOPB_SCSI_DATA_HSHK 0x33
1375 #define IOPB_SCSI_CTRL 0x34
1376 #define IOPB_RES_ADDR_35 0x35
1377 #define IOPB_RES_ADDR_36 0x36
1378 #define IOPB_RES_ADDR_37 0x37
1379 #define IOPB_RAM_BIST 0x38
1380 #define IOPB_PLL_TEST 0x39
1381 #define IOPB_PCI_INT_CFG 0x3A
1382 #define IOPB_RES_ADDR_3B 0x3B
1383 #define IOPB_RFIFO_CNT 0x3C
1384 #define IOPB_RES_ADDR_3D 0x3D
1385 #define IOPB_RES_ADDR_3E 0x3E
1386 #define IOPB_RES_ADDR_3F 0x3F
1387
1388 /*
1389 * Word I/O register address from base of 'iop_base'.
1390 */
1391 #define IOPW_CHIP_ID_0 0x00 /* CID0 */
1392 #define IOPW_CTRL_REG 0x02 /* CC */
1393 #define IOPW_RAM_ADDR 0x04 /* LA */
1394 #define IOPW_RAM_DATA 0x06 /* LD */
1395 #define IOPW_RES_ADDR_08 0x08
1396 #define IOPW_RISC_CSR 0x0A /* CSR */
1397 #define IOPW_SCSI_CFG0 0x0C /* CFG0 */
1398 #define IOPW_SCSI_CFG1 0x0E /* CFG1 */
1399 #define IOPW_RES_ADDR_10 0x10
1400 #define IOPW_SEL_MASK 0x12 /* SM */
1401 #define IOPW_RES_ADDR_14 0x14
1402 #define IOPW_FLASH_ADDR 0x16 /* FA */
1403 #define IOPW_RES_ADDR_18 0x18
1404 #define IOPW_EE_CMD 0x1A /* EC */
1405 #define IOPW_EE_DATA 0x1C /* ED */
1406 #define IOPW_SFIFO_CNT 0x1E /* SFC */
1407 #define IOPW_RES_ADDR_20 0x20
1408 #define IOPW_Q_BASE 0x22 /* QB */
1409 #define IOPW_QP 0x24 /* QP */
1410 #define IOPW_IX 0x26 /* IX */
1411 #define IOPW_SP 0x28 /* SP */
1412 #define IOPW_PC 0x2A /* PC */
1413 #define IOPW_RES_ADDR_2C 0x2C
1414 #define IOPW_RES_ADDR_2E 0x2E
1415 #define IOPW_SCSI_DATA 0x30 /* SD */
1416 #define IOPW_SCSI_DATA_HSHK 0x32 /* SDH */
1417 #define IOPW_SCSI_CTRL 0x34 /* SC */
1418 #define IOPW_HSHK_CFG 0x36 /* HCFG */
1419 #define IOPW_SXFR_STATUS 0x36 /* SXS */
1420 #define IOPW_SXFR_CNTL 0x38 /* SXL */
1421 #define IOPW_SXFR_CNTH 0x3A /* SXH */
1422 #define IOPW_RES_ADDR_3C 0x3C
1423 #define IOPW_RFIFO_DATA 0x3E /* RFD */
1424
1425 /*
1426 * Doubleword I/O register address from base of 'iop_base'.
1427 */
1428 #define IOPDW_RES_ADDR_0 0x00
1429 #define IOPDW_RAM_DATA 0x04
1430 #define IOPDW_RES_ADDR_8 0x08
1431 #define IOPDW_RES_ADDR_C 0x0C
1432 #define IOPDW_RES_ADDR_10 0x10
1433 #define IOPDW_COMMA 0x14
1434 #define IOPDW_COMMB 0x18
1435 #define IOPDW_RES_ADDR_1C 0x1C
1436 #define IOPDW_SDMA_ADDR0 0x20
1437 #define IOPDW_SDMA_ADDR1 0x24
1438 #define IOPDW_SDMA_COUNT 0x28
1439 #define IOPDW_SDMA_ERROR 0x2C
1440 #define IOPDW_RDMA_ADDR0 0x30
1441 #define IOPDW_RDMA_ADDR1 0x34
1442 #define IOPDW_RDMA_COUNT 0x38
1443 #define IOPDW_RDMA_ERROR 0x3C
1444
1445 #define ADV_CHIP_ID_BYTE 0x25
1446 #define ADV_CHIP_ID_WORD 0x04C1
1447
1448 #define ADV_INTR_ENABLE_HOST_INTR 0x01
1449 #define ADV_INTR_ENABLE_SEL_INTR 0x02
1450 #define ADV_INTR_ENABLE_DPR_INTR 0x04
1451 #define ADV_INTR_ENABLE_RTA_INTR 0x08
1452 #define ADV_INTR_ENABLE_RMA_INTR 0x10
1453 #define ADV_INTR_ENABLE_RST_INTR 0x20
1454 #define ADV_INTR_ENABLE_DPE_INTR 0x40
1455 #define ADV_INTR_ENABLE_GLOBAL_INTR 0x80
1456
1457 #define ADV_INTR_STATUS_INTRA 0x01
1458 #define ADV_INTR_STATUS_INTRB 0x02
1459 #define ADV_INTR_STATUS_INTRC 0x04
1460
1461 #define ADV_RISC_CSR_STOP (0x0000)
1462 #define ADV_RISC_TEST_COND (0x2000)
1463 #define ADV_RISC_CSR_RUN (0x4000)
1464 #define ADV_RISC_CSR_SINGLE_STEP (0x8000)
1465
1466 #define ADV_CTRL_REG_HOST_INTR 0x0100
1467 #define ADV_CTRL_REG_SEL_INTR 0x0200
1468 #define ADV_CTRL_REG_DPR_INTR 0x0400
1469 #define ADV_CTRL_REG_RTA_INTR 0x0800
1470 #define ADV_CTRL_REG_RMA_INTR 0x1000
1471 #define ADV_CTRL_REG_RES_BIT14 0x2000
1472 #define ADV_CTRL_REG_DPE_INTR 0x4000
1473 #define ADV_CTRL_REG_POWER_DONE 0x8000
1474 #define ADV_CTRL_REG_ANY_INTR 0xFF00
1475
1476 #define ADV_CTRL_REG_CMD_RESET 0x00C6
1477 #define ADV_CTRL_REG_CMD_WR_IO_REG 0x00C5
1478 #define ADV_CTRL_REG_CMD_RD_IO_REG 0x00C4
1479 #define ADV_CTRL_REG_CMD_WR_PCI_CFG_SPACE 0x00C3
1480 #define ADV_CTRL_REG_CMD_RD_PCI_CFG_SPACE 0x00C2
1481
1482 #define ADV_TICKLE_NOP 0x00
1483 #define ADV_TICKLE_A 0x01
1484 #define ADV_TICKLE_B 0x02
1485 #define ADV_TICKLE_C 0x03
1486
1487 #define AdvIsIntPending(port) \
1488 (AdvReadWordRegister(port, IOPW_CTRL_REG) & ADV_CTRL_REG_HOST_INTR)
1489
1490 /*
1491 * SCSI_CFG0 Register bit definitions
1492 */
1493 #define TIMER_MODEAB 0xC000 /* Watchdog, Second, and Select. Timer Ctrl. */
1494 #define PARITY_EN 0x2000 /* Enable SCSI Parity Error detection */
1495 #define EVEN_PARITY 0x1000 /* Select Even Parity */
1496 #define WD_LONG 0x0800 /* Watchdog Interval, 1: 57 min, 0: 13 sec */
1497 #define QUEUE_128 0x0400 /* Queue Size, 1: 128 byte, 0: 64 byte */
1498 #define PRIM_MODE 0x0100 /* Primitive SCSI mode */
1499 #define SCAM_EN 0x0080 /* Enable SCAM selection */
1500 #define SEL_TMO_LONG 0x0040 /* Sel/Resel Timeout, 1: 400 ms, 0: 1.6 ms */
1501 #define CFRM_ID 0x0020 /* SCAM id sel. confirm., 1: fast, 0: 6.4 ms */
1502 #define OUR_ID_EN 0x0010 /* Enable OUR_ID bits */
1503 #define OUR_ID 0x000F /* SCSI ID */
1504
1505 /*
1506 * SCSI_CFG1 Register bit definitions
1507 */
1508 #define BIG_ENDIAN 0x8000 /* Enable Big Endian Mode MIO:15, EEP:15 */
1509 #define TERM_POL 0x2000 /* Terminator Polarity Ctrl. MIO:13, EEP:13 */
1510 #define SLEW_RATE 0x1000 /* SCSI output buffer slew rate */
1511 #define FILTER_SEL 0x0C00 /* Filter Period Selection */
1512 #define FLTR_DISABLE 0x0000 /* Input Filtering Disabled */
1513 #define FLTR_11_TO_20NS 0x0800 /* Input Filtering 11ns to 20ns */
1514 #define FLTR_21_TO_39NS 0x0C00 /* Input Filtering 21ns to 39ns */
1515 #define ACTIVE_DBL 0x0200 /* Disable Active Negation */
1516 #define DIFF_MODE 0x0100 /* SCSI differential Mode (Read-Only) */
1517 #define DIFF_SENSE 0x0080 /* 1: No SE cables, 0: SE cable (Read-Only) */
1518 #define TERM_CTL_SEL 0x0040 /* Enable TERM_CTL_H and TERM_CTL_L */
1519 #define TERM_CTL 0x0030 /* External SCSI Termination Bits */
1520 #define TERM_CTL_H 0x0020 /* Enable External SCSI Upper Termination */
1521 #define TERM_CTL_L 0x0010 /* Enable External SCSI Lower Termination */
1522 #define CABLE_DETECT 0x000F /* External SCSI Cable Connection Status */
1523
1524 /*
1525 * Addendum for ASC-38C0800 Chip
1526 *
1527 * The ASC-38C1600 Chip uses the same definitions except that the
1528 * bus mode override bits [12:10] have been moved to byte register
1529 * offset 0xE (IOPB_SOFT_OVER_WR) bits [12:10]. The [12:10] bits in
1530 * SCSI_CFG1 are read-only and always available. Bit 14 (DIS_TERM_DRV)
1531 * is not needed. The [12:10] bits in IOPB_SOFT_OVER_WR are write-only.
1532 * Also each ASC-38C1600 function or channel uses only cable bits [5:4]
1533 * and [1:0]. Bits [14], [7:6], [3:2] are unused.
1534 */
1535 #define DIS_TERM_DRV 0x4000 /* 1: Read c_det[3:0], 0: cannot read */
1536 #define HVD_LVD_SE 0x1C00 /* Device Detect Bits */
1537 #define HVD 0x1000 /* HVD Device Detect */
1538 #define LVD 0x0800 /* LVD Device Detect */
1539 #define SE 0x0400 /* SE Device Detect */
1540 #define TERM_LVD 0x00C0 /* LVD Termination Bits */
1541 #define TERM_LVD_HI 0x0080 /* Enable LVD Upper Termination */
1542 #define TERM_LVD_LO 0x0040 /* Enable LVD Lower Termination */
1543 #define TERM_SE 0x0030 /* SE Termination Bits */
1544 #define TERM_SE_HI 0x0020 /* Enable SE Upper Termination */
1545 #define TERM_SE_LO 0x0010 /* Enable SE Lower Termination */
1546 #define C_DET_LVD 0x000C /* LVD Cable Detect Bits */
1547 #define C_DET3 0x0008 /* Cable Detect for LVD External Wide */
1548 #define C_DET2 0x0004 /* Cable Detect for LVD Internal Wide */
1549 #define C_DET_SE 0x0003 /* SE Cable Detect Bits */
1550 #define C_DET1 0x0002 /* Cable Detect for SE Internal Wide */
1551 #define C_DET0 0x0001 /* Cable Detect for SE Internal Narrow */
1552
1553 #define CABLE_ILLEGAL_A 0x7
1554 /* x 0 0 0 | on on | Illegal (all 3 connectors are used) */
1555
1556 #define CABLE_ILLEGAL_B 0xB
1557 /* 0 x 0 0 | on on | Illegal (all 3 connectors are used) */
1558
1559 /*
1560 * MEM_CFG Register bit definitions
1561 */
1562 #define BIOS_EN 0x40 /* BIOS Enable MIO:14,EEP:14 */
1563 #define FAST_EE_CLK 0x20 /* Diagnostic Bit */
1564 #define RAM_SZ 0x1C /* Specify size of RAM to RISC */
1565 #define RAM_SZ_2KB 0x00 /* 2 KB */
1566 #define RAM_SZ_4KB 0x04 /* 4 KB */
1567 #define RAM_SZ_8KB 0x08 /* 8 KB */
1568 #define RAM_SZ_16KB 0x0C /* 16 KB */
1569 #define RAM_SZ_32KB 0x10 /* 32 KB */
1570 #define RAM_SZ_64KB 0x14 /* 64 KB */
1571
1572 /*
1573 * DMA_CFG0 Register bit definitions
1574 *
1575 * This register is only accessible to the host.
1576 */
1577 #define BC_THRESH_ENB 0x80 /* PCI DMA Start Conditions */
1578 #define FIFO_THRESH 0x70 /* PCI DMA FIFO Threshold */
1579 #define FIFO_THRESH_16B 0x00 /* 16 bytes */
1580 #define FIFO_THRESH_32B 0x20 /* 32 bytes */
1581 #define FIFO_THRESH_48B 0x30 /* 48 bytes */
1582 #define FIFO_THRESH_64B 0x40 /* 64 bytes */
1583 #define FIFO_THRESH_80B 0x50 /* 80 bytes (default) */
1584 #define FIFO_THRESH_96B 0x60 /* 96 bytes */
1585 #define FIFO_THRESH_112B 0x70 /* 112 bytes */
1586 #define START_CTL 0x0C /* DMA start conditions */
1587 #define START_CTL_TH 0x00 /* Wait threshold level (default) */
1588 #define START_CTL_ID 0x04 /* Wait SDMA/SBUS idle */
1589 #define START_CTL_THID 0x08 /* Wait threshold and SDMA/SBUS idle */
1590 #define START_CTL_EMFU 0x0C /* Wait SDMA FIFO empty/full */
1591 #define READ_CMD 0x03 /* Memory Read Method */
1592 #define READ_CMD_MR 0x00 /* Memory Read */
1593 #define READ_CMD_MRL 0x02 /* Memory Read Long */
1594 #define READ_CMD_MRM 0x03 /* Memory Read Multiple (default) */
1595
1596 /*
1597 * ASC-38C0800 RAM BIST Register bit definitions
1598 */
1599 #define RAM_TEST_MODE 0x80
1600 #define PRE_TEST_MODE 0x40
1601 #define NORMAL_MODE 0x00
1602 #define RAM_TEST_DONE 0x10
1603 #define RAM_TEST_STATUS 0x0F
1604 #define RAM_TEST_HOST_ERROR 0x08
1605 #define RAM_TEST_INTRAM_ERROR 0x04
1606 #define RAM_TEST_RISC_ERROR 0x02
1607 #define RAM_TEST_SCSI_ERROR 0x01
1608 #define RAM_TEST_SUCCESS 0x00
1609 #define PRE_TEST_VALUE 0x05
1610 #define NORMAL_VALUE 0x00
1611
1612 /*
1613 * ASC38C1600 Definitions
1614 *
1615 * IOPB_PCI_INT_CFG Bit Field Definitions
1616 */
1617
1618 #define INTAB_LD 0x80 /* Value loaded from EEPROM Bit 11. */
1619
1620 /*
1621 * Bit 1 can be set to change the interrupt for the Function to operate in
1622 * Totem Pole mode. By default Bit 1 is 0 and the interrupt operates in
1623 * Open Drain mode. Both functions of the ASC38C1600 must be set to the same
1624 * mode, otherwise the operating mode is undefined.
1625 */
1626 #define TOTEMPOLE 0x02
1627
1628 /*
1629 * Bit 0 can be used to change the Int Pin for the Function. The value is
1630 * 0 by default for both Functions with Function 0 using INT A and Function
1631 * B using INT B. For Function 0 if set, INT B is used. For Function 1 if set,
1632 * INT A is used.
1633 *
1634 * EEPROM Word 0 Bit 11 for each Function may change the initial Int Pin
1635 * value specified in the PCI Configuration Space.
1636 */
1637 #define INTAB 0x01
1638
1639 /*
1640 * Adv Library Status Definitions
1641 */
1642 #define ADV_TRUE 1
1643 #define ADV_FALSE 0
1644 #define ADV_SUCCESS 1
1645 #define ADV_BUSY 0
1646 #define ADV_ERROR (-1)
1647
1648 /*
1649 * ADV_DVC_VAR 'warn_code' values
1650 */
1651 #define ASC_WARN_BUSRESET_ERROR 0x0001 /* SCSI Bus Reset error */
1652 #define ASC_WARN_EEPROM_CHKSUM 0x0002 /* EEP check sum error */
1653 #define ASC_WARN_EEPROM_TERMINATION 0x0004 /* EEP termination bad field */
1654 #define ASC_WARN_ERROR 0xFFFF /* ADV_ERROR return */
1655
1656 #define ADV_MAX_TID 15 /* max. target identifier */
1657 #define ADV_MAX_LUN 7 /* max. logical unit number */
1658
1659 /*
1660 * Fixed locations of microcode operating variables.
1661 */
1662 #define ASC_MC_CODE_BEGIN_ADDR 0x0028 /* microcode start address */
1663 #define ASC_MC_CODE_END_ADDR 0x002A /* microcode end address */
1664 #define ASC_MC_CODE_CHK_SUM 0x002C /* microcode code checksum */
1665 #define ASC_MC_VERSION_DATE 0x0038 /* microcode version */
1666 #define ASC_MC_VERSION_NUM 0x003A /* microcode number */
1667 #define ASC_MC_BIOSMEM 0x0040 /* BIOS RISC Memory Start */
1668 #define ASC_MC_BIOSLEN 0x0050 /* BIOS RISC Memory Length */
1669 #define ASC_MC_BIOS_SIGNATURE 0x0058 /* BIOS Signature 0x55AA */
1670 #define ASC_MC_BIOS_VERSION 0x005A /* BIOS Version (2 bytes) */
1671 #define ASC_MC_SDTR_SPEED1 0x0090 /* SDTR Speed for TID 0-3 */
1672 #define ASC_MC_SDTR_SPEED2 0x0092 /* SDTR Speed for TID 4-7 */
1673 #define ASC_MC_SDTR_SPEED3 0x0094 /* SDTR Speed for TID 8-11 */
1674 #define ASC_MC_SDTR_SPEED4 0x0096 /* SDTR Speed for TID 12-15 */
1675 #define ASC_MC_CHIP_TYPE 0x009A
1676 #define ASC_MC_INTRB_CODE 0x009B
1677 #define ASC_MC_WDTR_ABLE 0x009C
1678 #define ASC_MC_SDTR_ABLE 0x009E
1679 #define ASC_MC_TAGQNG_ABLE 0x00A0
1680 #define ASC_MC_DISC_ENABLE 0x00A2
1681 #define ASC_MC_IDLE_CMD_STATUS 0x00A4
1682 #define ASC_MC_IDLE_CMD 0x00A6
1683 #define ASC_MC_IDLE_CMD_PARAMETER 0x00A8
1684 #define ASC_MC_DEFAULT_SCSI_CFG0 0x00AC
1685 #define ASC_MC_DEFAULT_SCSI_CFG1 0x00AE
1686 #define ASC_MC_DEFAULT_MEM_CFG 0x00B0
1687 #define ASC_MC_DEFAULT_SEL_MASK 0x00B2
1688 #define ASC_MC_SDTR_DONE 0x00B6
1689 #define ASC_MC_NUMBER_OF_QUEUED_CMD 0x00C0
1690 #define ASC_MC_NUMBER_OF_MAX_CMD 0x00D0
1691 #define ASC_MC_DEVICE_HSHK_CFG_TABLE 0x0100
1692 #define ASC_MC_CONTROL_FLAG 0x0122 /* Microcode control flag. */
1693 #define ASC_MC_WDTR_DONE 0x0124
1694 #define ASC_MC_CAM_MODE_MASK 0x015E /* CAM mode TID bitmask. */
1695 #define ASC_MC_ICQ 0x0160
1696 #define ASC_MC_IRQ 0x0164
1697 #define ASC_MC_PPR_ABLE 0x017A
1698
1699 /*
1700 * BIOS LRAM variable absolute offsets.
1701 */
1702 #define BIOS_CODESEG 0x54
1703 #define BIOS_CODELEN 0x56
1704 #define BIOS_SIGNATURE 0x58
1705 #define BIOS_VERSION 0x5A
1706
1707 /*
1708 * Microcode Control Flags
1709 *
1710 * Flags set by the Adv Library in RISC variable 'control_flag' (0x122)
1711 * and handled by the microcode.
1712 */
1713 #define CONTROL_FLAG_IGNORE_PERR 0x0001 /* Ignore DMA Parity Errors */
1714 #define CONTROL_FLAG_ENABLE_AIPP 0x0002 /* Enabled AIPP checking. */
1715
1716 /*
1717 * ASC_MC_DEVICE_HSHK_CFG_TABLE microcode table or HSHK_CFG register format
1718 */
1719 #define HSHK_CFG_WIDE_XFR 0x8000
1720 #define HSHK_CFG_RATE 0x0F00
1721 #define HSHK_CFG_OFFSET 0x001F
1722
1723 #define ASC_DEF_MAX_HOST_QNG 0xFD /* Max. number of host commands (253) */
1724 #define ASC_DEF_MIN_HOST_QNG 0x10 /* Min. number of host commands (16) */
1725 #define ASC_DEF_MAX_DVC_QNG 0x3F /* Max. number commands per device (63) */
1726 #define ASC_DEF_MIN_DVC_QNG 0x04 /* Min. number commands per device (4) */
1727
1728 #define ASC_QC_DATA_CHECK 0x01 /* Require ASC_QC_DATA_OUT set or clear. */
1729 #define ASC_QC_DATA_OUT 0x02 /* Data out DMA transfer. */
1730 #define ASC_QC_START_MOTOR 0x04 /* Send auto-start motor before request. */
1731 #define ASC_QC_NO_OVERRUN 0x08 /* Don't report overrun. */
1732 #define ASC_QC_FREEZE_TIDQ 0x10 /* Freeze TID queue after request. XXX TBD */
1733
1734 #define ASC_QSC_NO_DISC 0x01 /* Don't allow disconnect for request. */
1735 #define ASC_QSC_NO_TAGMSG 0x02 /* Don't allow tag queuing for request. */
1736 #define ASC_QSC_NO_SYNC 0x04 /* Don't use Synch. transfer on request. */
1737 #define ASC_QSC_NO_WIDE 0x08 /* Don't use Wide transfer on request. */
1738 #define ASC_QSC_REDO_DTR 0x10 /* Renegotiate WDTR/SDTR before request. */
1739 /*
1740 * Note: If a Tag Message is to be sent and neither ASC_QSC_HEAD_TAG or
1741 * ASC_QSC_ORDERED_TAG is set, then a Simple Tag Message (0x20) is used.
1742 */
1743 #define ASC_QSC_HEAD_TAG 0x40 /* Use Head Tag Message (0x21). */
1744 #define ASC_QSC_ORDERED_TAG 0x80 /* Use Ordered Tag Message (0x22). */
1745
1746 /*
1747 * All fields here are accessed by the board microcode and need to be
1748 * little-endian.
1749 */
1750 typedef struct adv_carr_t {
1751 ADV_VADDR carr_va; /* Carrier Virtual Address */
1752 ADV_PADDR carr_pa; /* Carrier Physical Address */
1753 ADV_VADDR areq_vpa; /* ASC_SCSI_REQ_Q Virtual or Physical Address */
1754 /*
1755 * next_vpa [31:4] Carrier Virtual or Physical Next Pointer
1756 *
1757 * next_vpa [3:1] Reserved Bits
1758 * next_vpa [0] Done Flag set in Response Queue.
1759 */
1760 ADV_VADDR next_vpa;
1761 } ADV_CARR_T;
1762
1763 /*
1764 * Mask used to eliminate low 4 bits of carrier 'next_vpa' field.
1765 */
1766 #define ASC_NEXT_VPA_MASK 0xFFFFFFF0
1767
1768 #define ASC_RQ_DONE 0x00000001
1769 #define ASC_RQ_GOOD 0x00000002
1770 #define ASC_CQ_STOPPER 0x00000000
1771
1772 #define ASC_GET_CARRP(carrp) ((carrp) & ASC_NEXT_VPA_MASK)
1773
1774 #define ADV_CARRIER_NUM_PAGE_CROSSING \
1775 (((ADV_CARRIER_COUNT * sizeof(ADV_CARR_T)) + (PAGE_SIZE - 1))/PAGE_SIZE)
1776
1777 #define ADV_CARRIER_BUFSIZE \
1778 ((ADV_CARRIER_COUNT + ADV_CARRIER_NUM_PAGE_CROSSING) * sizeof(ADV_CARR_T))
1779
1780 /*
1781 * ASC_SCSI_REQ_Q 'a_flag' definitions
1782 *
1783 * The Adv Library should limit use to the lower nibble (4 bits) of
1784 * a_flag. Drivers are free to use the upper nibble (4 bits) of a_flag.
1785 */
1786 #define ADV_POLL_REQUEST 0x01 /* poll for request completion */
1787 #define ADV_SCSIQ_DONE 0x02 /* request done */
1788 #define ADV_DONT_RETRY 0x08 /* don't do retry */
1789
1790 #define ADV_CHIP_ASC3550 0x01 /* Ultra-Wide IC */
1791 #define ADV_CHIP_ASC38C0800 0x02 /* Ultra2-Wide/LVD IC */
1792 #define ADV_CHIP_ASC38C1600 0x03 /* Ultra3-Wide/LVD2 IC */
1793
1794 /*
1795 * Adapter temporary configuration structure
1796 *
1797 * This structure can be discarded after initialization. Don't add
1798 * fields here needed after initialization.
1799 *
1800 * Field naming convention:
1801 *
1802 * *_enable indicates the field enables or disables a feature. The
1803 * value of the field is never reset.
1804 */
1805 typedef struct adv_dvc_cfg {
1806 ushort disc_enable; /* enable disconnection */
1807 uchar chip_version; /* chip version */
1808 uchar termination; /* Term. Ctrl. bits 6-5 of SCSI_CFG1 register */
1809 ushort control_flag; /* Microcode Control Flag */
1810 ushort mcode_date; /* Microcode date */
1811 ushort mcode_version; /* Microcode version */
1812 ushort serial1; /* EEPROM serial number word 1 */
1813 ushort serial2; /* EEPROM serial number word 2 */
1814 ushort serial3; /* EEPROM serial number word 3 */
1815 } ADV_DVC_CFG;
1816
1817 struct adv_dvc_var;
1818 struct adv_scsi_req_q;
1819
1820 typedef struct asc_sg_block {
1821 uchar reserved1;
1822 uchar reserved2;
1823 uchar reserved3;
1824 uchar sg_cnt; /* Valid entries in block. */
1825 ADV_PADDR sg_ptr; /* Pointer to next sg block. */
1826 struct {
1827 ADV_PADDR sg_addr; /* SG element address. */
1828 ADV_DCNT sg_count; /* SG element count. */
1829 } sg_list[NO_OF_SG_PER_BLOCK];
1830 } ADV_SG_BLOCK;
1831
1832 /*
1833 * ADV_SCSI_REQ_Q - microcode request structure
1834 *
1835 * All fields in this structure up to byte 60 are used by the microcode.
1836 * The microcode makes assumptions about the size and ordering of fields
1837 * in this structure. Do not change the structure definition here without
1838 * coordinating the change with the microcode.
1839 *
1840 * All fields accessed by microcode must be maintained in little_endian
1841 * order.
1842 */
1843 typedef struct adv_scsi_req_q {
1844 uchar cntl; /* Ucode flags and state (ASC_MC_QC_*). */
1845 uchar target_cmd;
1846 uchar target_id; /* Device target identifier. */
1847 uchar target_lun; /* Device target logical unit number. */
1848 ADV_PADDR data_addr; /* Data buffer physical address. */
1849 ADV_DCNT data_cnt; /* Data count. Ucode sets to residual. */
1850 ADV_PADDR sense_addr;
1851 ADV_PADDR carr_pa;
1852 uchar mflag;
1853 uchar sense_len;
1854 uchar cdb_len; /* SCSI CDB length. Must <= 16 bytes. */
1855 uchar scsi_cntl;
1856 uchar done_status; /* Completion status. */
1857 uchar scsi_status; /* SCSI status byte. */
1858 uchar host_status; /* Ucode host status. */
1859 uchar sg_working_ix;
1860 uchar cdb[12]; /* SCSI CDB bytes 0-11. */
1861 ADV_PADDR sg_real_addr; /* SG list physical address. */
1862 ADV_PADDR scsiq_rptr;
1863 uchar cdb16[4]; /* SCSI CDB bytes 12-15. */
1864 ADV_VADDR scsiq_ptr;
1865 ADV_VADDR carr_va;
1866 /*
1867 * End of microcode structure - 60 bytes. The rest of the structure
1868 * is used by the Adv Library and ignored by the microcode.
1869 */
1870 ADV_VADDR srb_ptr;
1871 ADV_SG_BLOCK *sg_list_ptr; /* SG list virtual address. */
1872 char *vdata_addr; /* Data buffer virtual address. */
1873 uchar a_flag;
1874 uchar pad[2]; /* Pad out to a word boundary. */
1875 } ADV_SCSI_REQ_Q;
1876
1877 /*
1878 * The following two structures are used to process Wide Board requests.
1879 *
1880 * The ADV_SCSI_REQ_Q structure in adv_req_t is passed to the Adv Library
1881 * and microcode with the ADV_SCSI_REQ_Q field 'srb_ptr' pointing to the
1882 * adv_req_t. The adv_req_t structure 'cmndp' field in turn points to the
1883 * Mid-Level SCSI request structure.
1884 *
1885 * Zero or more ADV_SG_BLOCK are used with each ADV_SCSI_REQ_Q. Each
1886 * ADV_SG_BLOCK structure holds 15 scatter-gather elements. Under Linux
1887 * up to 255 scatter-gather elements may be used per request or
1888 * ADV_SCSI_REQ_Q.
1889 *
1890 * Both structures must be 32 byte aligned.
1891 */
1892 typedef struct adv_sgblk {
1893 ADV_SG_BLOCK sg_block; /* Sgblock structure. */
1894 uchar align[32]; /* Sgblock structure padding. */
1895 struct adv_sgblk *next_sgblkp; /* Next scatter-gather structure. */
1896 } adv_sgblk_t;
1897
1898 typedef struct adv_req {
1899 ADV_SCSI_REQ_Q scsi_req_q; /* Adv Library request structure. */
1900 uchar align[32]; /* Request structure padding. */
1901 struct scsi_cmnd *cmndp; /* Mid-Level SCSI command pointer. */
1902 adv_sgblk_t *sgblkp; /* Adv Library scatter-gather pointer. */
1903 struct adv_req *next_reqp; /* Next Request Structure. */
1904 } adv_req_t;
1905
1906 /*
1907 * Adapter operation variable structure.
1908 *
1909 * One structure is required per host adapter.
1910 *
1911 * Field naming convention:
1912 *
1913 * *_able indicates both whether a feature should be enabled or disabled
1914 * and whether a device isi capable of the feature. At initialization
1915 * this field may be set, but later if a device is found to be incapable
1916 * of the feature, the field is cleared.
1917 */
1918 typedef struct adv_dvc_var {
1919 AdvPortAddr iop_base; /* I/O port address */
1920 ushort err_code; /* fatal error code */
1921 ushort bios_ctrl; /* BIOS control word, EEPROM word 12 */
1922 ushort wdtr_able; /* try WDTR for a device */
1923 ushort sdtr_able; /* try SDTR for a device */
1924 ushort ultra_able; /* try SDTR Ultra speed for a device */
1925 ushort sdtr_speed1; /* EEPROM SDTR Speed for TID 0-3 */
1926 ushort sdtr_speed2; /* EEPROM SDTR Speed for TID 4-7 */
1927 ushort sdtr_speed3; /* EEPROM SDTR Speed for TID 8-11 */
1928 ushort sdtr_speed4; /* EEPROM SDTR Speed for TID 12-15 */
1929 ushort tagqng_able; /* try tagged queuing with a device */
1930 ushort ppr_able; /* PPR message capable per TID bitmask. */
1931 uchar max_dvc_qng; /* maximum number of tagged commands per device */
1932 ushort start_motor; /* start motor command allowed */
1933 uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */
1934 uchar chip_no; /* should be assigned by caller */
1935 uchar max_host_qng; /* maximum number of Q'ed command allowed */
1936 ushort no_scam; /* scam_tolerant of EEPROM */
1937 struct asc_board *drv_ptr; /* driver pointer to private structure */
1938 uchar chip_scsi_id; /* chip SCSI target ID */
1939 uchar chip_type;
1940 uchar bist_err_code;
1941 ADV_CARR_T *carrier_buf;
1942 ADV_CARR_T *carr_freelist; /* Carrier free list. */
1943 ADV_CARR_T *icq_sp; /* Initiator command queue stopper pointer. */
1944 ADV_CARR_T *irq_sp; /* Initiator response queue stopper pointer. */
1945 ushort carr_pending_cnt; /* Count of pending carriers. */
1946 struct adv_req *orig_reqp; /* adv_req_t memory block. */
1947 /*
1948 * Note: The following fields will not be used after initialization. The
1949 * driver may discard the buffer after initialization is done.
1950 */
1951 ADV_DVC_CFG *cfg; /* temporary configuration structure */
1952 } ADV_DVC_VAR;
1953
1954 /*
1955 * Microcode idle loop commands
1956 */
1957 #define IDLE_CMD_COMPLETED 0
1958 #define IDLE_CMD_STOP_CHIP 0x0001
1959 #define IDLE_CMD_STOP_CHIP_SEND_INT 0x0002
1960 #define IDLE_CMD_SEND_INT 0x0004
1961 #define IDLE_CMD_ABORT 0x0008
1962 #define IDLE_CMD_DEVICE_RESET 0x0010
1963 #define IDLE_CMD_SCSI_RESET_START 0x0020 /* Assert SCSI Bus Reset */
1964 #define IDLE_CMD_SCSI_RESET_END 0x0040 /* Deassert SCSI Bus Reset */
1965 #define IDLE_CMD_SCSIREQ 0x0080
1966
1967 #define IDLE_CMD_STATUS_SUCCESS 0x0001
1968 #define IDLE_CMD_STATUS_FAILURE 0x0002
1969
1970 /*
1971 * AdvSendIdleCmd() flag definitions.
1972 */
1973 #define ADV_NOWAIT 0x01
1974
1975 /*
1976 * Wait loop time out values.
1977 */
1978 #define SCSI_WAIT_100_MSEC 100UL /* 100 milliseconds */
1979 #define SCSI_US_PER_MSEC 1000 /* microseconds per millisecond */
1980 #define SCSI_MAX_RETRY 10 /* retry count */
1981
1982 #define ADV_ASYNC_RDMA_FAILURE 0x01 /* Fatal RDMA failure. */
1983 #define ADV_ASYNC_SCSI_BUS_RESET_DET 0x02 /* Detected SCSI Bus Reset. */
1984 #define ADV_ASYNC_CARRIER_READY_FAILURE 0x03 /* Carrier Ready failure. */
1985 #define ADV_RDMA_IN_CARR_AND_Q_INVALID 0x04 /* RDMAed-in data invalid. */
1986
1987 #define ADV_HOST_SCSI_BUS_RESET 0x80 /* Host Initiated SCSI Bus Reset. */
1988
1989 /* Read byte from a register. */
1990 #define AdvReadByteRegister(iop_base, reg_off) \
1991 (ADV_MEM_READB((iop_base) + (reg_off)))
1992
1993 /* Write byte to a register. */
1994 #define AdvWriteByteRegister(iop_base, reg_off, byte) \
1995 (ADV_MEM_WRITEB((iop_base) + (reg_off), (byte)))
1996
1997 /* Read word (2 bytes) from a register. */
1998 #define AdvReadWordRegister(iop_base, reg_off) \
1999 (ADV_MEM_READW((iop_base) + (reg_off)))
2000
2001 /* Write word (2 bytes) to a register. */
2002 #define AdvWriteWordRegister(iop_base, reg_off, word) \
2003 (ADV_MEM_WRITEW((iop_base) + (reg_off), (word)))
2004
2005 /* Write dword (4 bytes) to a register. */
2006 #define AdvWriteDWordRegister(iop_base, reg_off, dword) \
2007 (ADV_MEM_WRITEDW((iop_base) + (reg_off), (dword)))
2008
2009 /* Read byte from LRAM. */
2010 #define AdvReadByteLram(iop_base, addr, byte) \
2011 do { \
2012 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)); \
2013 (byte) = ADV_MEM_READB((iop_base) + IOPB_RAM_DATA); \
2014 } while (0)
2015
2016 /* Write byte to LRAM. */
2017 #define AdvWriteByteLram(iop_base, addr, byte) \
2018 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)), \
2019 ADV_MEM_WRITEB((iop_base) + IOPB_RAM_DATA, (byte)))
2020
2021 /* Read word (2 bytes) from LRAM. */
2022 #define AdvReadWordLram(iop_base, addr, word) \
2023 do { \
2024 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)); \
2025 (word) = (ADV_MEM_READW((iop_base) + IOPW_RAM_DATA)); \
2026 } while (0)
2027
2028 /* Write word (2 bytes) to LRAM. */
2029 #define AdvWriteWordLram(iop_base, addr, word) \
2030 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)), \
2031 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, (word)))
2032
2033 /* Write little-endian double word (4 bytes) to LRAM */
2034 /* Because of unspecified C language ordering don't use auto-increment. */
2035 #define AdvWriteDWordLramNoSwap(iop_base, addr, dword) \
2036 ((ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)), \
2037 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, \
2038 cpu_to_le16((ushort) ((dword) & 0xFFFF)))), \
2039 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr) + 2), \
2040 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, \
2041 cpu_to_le16((ushort) ((dword >> 16) & 0xFFFF)))))
2042
2043 /* Read word (2 bytes) from LRAM assuming that the address is already set. */
2044 #define AdvReadWordAutoIncLram(iop_base) \
2045 (ADV_MEM_READW((iop_base) + IOPW_RAM_DATA))
2046
2047 /* Write word (2 bytes) to LRAM assuming that the address is already set. */
2048 #define AdvWriteWordAutoIncLram(iop_base, word) \
2049 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, (word)))
2050
2051 /*
2052 * Define macro to check for Condor signature.
2053 *
2054 * Evaluate to ADV_TRUE if a Condor chip is found the specified port
2055 * address 'iop_base'. Otherwise evalue to ADV_FALSE.
2056 */
2057 #define AdvFindSignature(iop_base) \
2058 (((AdvReadByteRegister((iop_base), IOPB_CHIP_ID_1) == \
2059 ADV_CHIP_ID_BYTE) && \
2060 (AdvReadWordRegister((iop_base), IOPW_CHIP_ID_0) == \
2061 ADV_CHIP_ID_WORD)) ? ADV_TRUE : ADV_FALSE)
2062
2063 /*
2064 * Define macro to Return the version number of the chip at 'iop_base'.
2065 *
2066 * The second parameter 'bus_type' is currently unused.
2067 */
2068 #define AdvGetChipVersion(iop_base, bus_type) \
2069 AdvReadByteRegister((iop_base), IOPB_CHIP_TYPE_REV)
2070
2071 /*
2072 * Abort an SRB in the chip's RISC Memory. The 'srb_ptr' argument must
2073 * match the ASC_SCSI_REQ_Q 'srb_ptr' field.
2074 *
2075 * If the request has not yet been sent to the device it will simply be
2076 * aborted from RISC memory. If the request is disconnected it will be
2077 * aborted on reselection by sending an Abort Message to the target ID.
2078 *
2079 * Return value:
2080 * ADV_TRUE(1) - Queue was successfully aborted.
2081 * ADV_FALSE(0) - Queue was not found on the active queue list.
2082 */
2083 #define AdvAbortQueue(asc_dvc, scsiq) \
2084 AdvSendIdleCmd((asc_dvc), (ushort) IDLE_CMD_ABORT, \
2085 (ADV_DCNT) (scsiq))
2086
2087 /*
2088 * Send a Bus Device Reset Message to the specified target ID.
2089 *
2090 * All outstanding commands will be purged if sending the
2091 * Bus Device Reset Message is successful.
2092 *
2093 * Return Value:
2094 * ADV_TRUE(1) - All requests on the target are purged.
2095 * ADV_FALSE(0) - Couldn't issue Bus Device Reset Message; Requests
2096 * are not purged.
2097 */
2098 #define AdvResetDevice(asc_dvc, target_id) \
2099 AdvSendIdleCmd((asc_dvc), (ushort) IDLE_CMD_DEVICE_RESET, \
2100 (ADV_DCNT) (target_id))
2101
2102 /*
2103 * SCSI Wide Type definition.
2104 */
2105 #define ADV_SCSI_BIT_ID_TYPE ushort
2106
2107 /*
2108 * AdvInitScsiTarget() 'cntl_flag' options.
2109 */
2110 #define ADV_SCAN_LUN 0x01
2111 #define ADV_CAPINFO_NOLUN 0x02
2112
2113 /*
2114 * Convert target id to target id bit mask.
2115 */
2116 #define ADV_TID_TO_TIDMASK(tid) (0x01 << ((tid) & ADV_MAX_TID))
2117
2118 /*
2119 * ASC_SCSI_REQ_Q 'done_status' and 'host_status' return values.
2120 */
2121
2122 #define QD_NO_STATUS 0x00 /* Request not completed yet. */
2123 #define QD_NO_ERROR 0x01
2124 #define QD_ABORTED_BY_HOST 0x02
2125 #define QD_WITH_ERROR 0x04
2126
2127 #define QHSTA_NO_ERROR 0x00
2128 #define QHSTA_M_SEL_TIMEOUT 0x11
2129 #define QHSTA_M_DATA_OVER_RUN 0x12
2130 #define QHSTA_M_UNEXPECTED_BUS_FREE 0x13
2131 #define QHSTA_M_QUEUE_ABORTED 0x15
2132 #define QHSTA_M_SXFR_SDMA_ERR 0x16 /* SXFR_STATUS SCSI DMA Error */
2133 #define QHSTA_M_SXFR_SXFR_PERR 0x17 /* SXFR_STATUS SCSI Bus Parity Error */
2134 #define QHSTA_M_RDMA_PERR 0x18 /* RISC PCI DMA parity error */
2135 #define QHSTA_M_SXFR_OFF_UFLW 0x19 /* SXFR_STATUS Offset Underflow */
2136 #define QHSTA_M_SXFR_OFF_OFLW 0x20 /* SXFR_STATUS Offset Overflow */
2137 #define QHSTA_M_SXFR_WD_TMO 0x21 /* SXFR_STATUS Watchdog Timeout */
2138 #define QHSTA_M_SXFR_DESELECTED 0x22 /* SXFR_STATUS Deselected */
2139 /* Note: QHSTA_M_SXFR_XFR_OFLW is identical to QHSTA_M_DATA_OVER_RUN. */
2140 #define QHSTA_M_SXFR_XFR_OFLW 0x12 /* SXFR_STATUS Transfer Overflow */
2141 #define QHSTA_M_SXFR_XFR_PH_ERR 0x24 /* SXFR_STATUS Transfer Phase Error */
2142 #define QHSTA_M_SXFR_UNKNOWN_ERROR 0x25 /* SXFR_STATUS Unknown Error */
2143 #define QHSTA_M_SCSI_BUS_RESET 0x30 /* Request aborted from SBR */
2144 #define QHSTA_M_SCSI_BUS_RESET_UNSOL 0x31 /* Request aborted from unsol. SBR */
2145 #define QHSTA_M_BUS_DEVICE_RESET 0x32 /* Request aborted from BDR */
2146 #define QHSTA_M_DIRECTION_ERR 0x35 /* Data Phase mismatch */
2147 #define QHSTA_M_DIRECTION_ERR_HUNG 0x36 /* Data Phase mismatch and bus hang */
2148 #define QHSTA_M_WTM_TIMEOUT 0x41
2149 #define QHSTA_M_BAD_CMPL_STATUS_IN 0x42
2150 #define QHSTA_M_NO_AUTO_REQ_SENSE 0x43
2151 #define QHSTA_M_AUTO_REQ_SENSE_FAIL 0x44
2152 #define QHSTA_M_INVALID_DEVICE 0x45 /* Bad target ID */
2153 #define QHSTA_M_FROZEN_TIDQ 0x46 /* TID Queue frozen. */
2154 #define QHSTA_M_SGBACKUP_ERROR 0x47 /* Scatter-Gather backup error */
2155
2156 /* Return the address that is aligned at the next doubleword >= to 'addr'. */
2157 #define ADV_8BALIGN(addr) (((ulong) (addr) + 0x7) & ~0x7)
2158 #define ADV_16BALIGN(addr) (((ulong) (addr) + 0xF) & ~0xF)
2159 #define ADV_32BALIGN(addr) (((ulong) (addr) + 0x1F) & ~0x1F)
2160
2161 /*
2162 * Total contiguous memory needed for driver SG blocks.
2163 *
2164 * ADV_MAX_SG_LIST must be defined by a driver. It is the maximum
2165 * number of scatter-gather elements the driver supports in a
2166 * single request.
2167 */
2168
2169 #define ADV_SG_LIST_MAX_BYTE_SIZE \
2170 (sizeof(ADV_SG_BLOCK) * \
2171 ((ADV_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK))
2172
2173 /* struct asc_board flags */
2174 #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */
2175
2176 #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0)
2177
2178 #define NO_ISA_DMA 0xff /* No ISA DMA Channel Used */
2179
2180 #define ASC_INFO_SIZE 128 /* advansys_info() line size */
2181
2182 #ifdef CONFIG_PROC_FS
2183 /* /proc/scsi/advansys/[0...] related definitions */
2184 #define ASC_PRTBUF_SIZE 2048
2185 #define ASC_PRTLINE_SIZE 160
2186
2187 #define ASC_PRT_NEXT() \
2188 if (cp) { \
2189 totlen += len; \
2190 leftlen -= len; \
2191 if (leftlen == 0) { \
2192 return totlen; \
2193 } \
2194 cp += len; \
2195 }
2196 #endif /* CONFIG_PROC_FS */
2197
2198 /* Asc Library return codes */
2199 #define ASC_TRUE 1
2200 #define ASC_FALSE 0
2201 #define ASC_NOERROR 1
2202 #define ASC_BUSY 0
2203 #define ASC_ERROR (-1)
2204
2205 /* struct scsi_cmnd function return codes */
2206 #define STATUS_BYTE(byte) (byte)
2207 #define MSG_BYTE(byte) ((byte) << 8)
2208 #define HOST_BYTE(byte) ((byte) << 16)
2209 #define DRIVER_BYTE(byte) ((byte) << 24)
2210
2211 #define ASC_STATS(shost, counter) ASC_STATS_ADD(shost, counter, 1)
2212 #ifndef ADVANSYS_STATS
2213 #define ASC_STATS_ADD(shost, counter, count)
2214 #else /* ADVANSYS_STATS */
2215 #define ASC_STATS_ADD(shost, counter, count) \
2216 (((struct asc_board *) shost_priv(shost))->asc_stats.counter += (count))
2217 #endif /* ADVANSYS_STATS */
2218
2219 /* If the result wraps when calculating tenths, return 0. */
2220 #define ASC_TENTHS(num, den) \
2221 (((10 * ((num)/(den))) > (((num) * 10)/(den))) ? \
2222 0 : ((((num) * 10)/(den)) - (10 * ((num)/(den)))))
2223
2224 /*
2225 * Display a message to the console.
2226 */
2227 #define ASC_PRINT(s) \
2228 { \
2229 printk("advansys: "); \
2230 printk(s); \
2231 }
2232
2233 #define ASC_PRINT1(s, a1) \
2234 { \
2235 printk("advansys: "); \
2236 printk((s), (a1)); \
2237 }
2238
2239 #define ASC_PRINT2(s, a1, a2) \
2240 { \
2241 printk("advansys: "); \
2242 printk((s), (a1), (a2)); \
2243 }
2244
2245 #define ASC_PRINT3(s, a1, a2, a3) \
2246 { \
2247 printk("advansys: "); \
2248 printk((s), (a1), (a2), (a3)); \
2249 }
2250
2251 #define ASC_PRINT4(s, a1, a2, a3, a4) \
2252 { \
2253 printk("advansys: "); \
2254 printk((s), (a1), (a2), (a3), (a4)); \
2255 }
2256
2257 #ifndef ADVANSYS_DEBUG
2258
2259 #define ASC_DBG(lvl, s...)
2260 #define ASC_DBG_PRT_SCSI_HOST(lvl, s)
2261 #define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp)
2262 #define ASC_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp)
2263 #define ASC_DBG_PRT_ASC_QDONE_INFO(lvl, qdone)
2264 #define ADV_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp)
2265 #define ASC_DBG_PRT_HEX(lvl, name, start, length)
2266 #define ASC_DBG_PRT_CDB(lvl, cdb, len)
2267 #define ASC_DBG_PRT_SENSE(lvl, sense, len)
2268 #define ASC_DBG_PRT_INQUIRY(lvl, inq, len)
2269
2270 #else /* ADVANSYS_DEBUG */
2271
2272 /*
2273 * Debugging Message Levels:
2274 * 0: Errors Only
2275 * 1: High-Level Tracing
2276 * 2-N: Verbose Tracing
2277 */
2278
2279 #define ASC_DBG(lvl, format, arg...) { \
2280 if (asc_dbglvl >= (lvl)) \
2281 printk(KERN_DEBUG "%s: %s: " format, DRV_NAME, \
2282 __func__ , ## arg); \
2283 }
2284
2285 #define ASC_DBG_PRT_SCSI_HOST(lvl, s) \
2286 { \
2287 if (asc_dbglvl >= (lvl)) { \
2288 asc_prt_scsi_host(s); \
2289 } \
2290 }
2291
2292 #define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp) \
2293 { \
2294 if (asc_dbglvl >= (lvl)) { \
2295 asc_prt_asc_scsi_q(scsiqp); \
2296 } \
2297 }
2298
2299 #define ASC_DBG_PRT_ASC_QDONE_INFO(lvl, qdone) \
2300 { \
2301 if (asc_dbglvl >= (lvl)) { \
2302 asc_prt_asc_qdone_info(qdone); \
2303 } \
2304 }
2305
2306 #define ASC_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp) \
2307 { \
2308 if (asc_dbglvl >= (lvl)) { \
2309 asc_prt_adv_scsi_req_q(scsiqp); \
2310 } \
2311 }
2312
2313 #define ASC_DBG_PRT_HEX(lvl, name, start, length) \
2314 { \
2315 if (asc_dbglvl >= (lvl)) { \
2316 asc_prt_hex((name), (start), (length)); \
2317 } \
2318 }
2319
2320 #define ASC_DBG_PRT_CDB(lvl, cdb, len) \
2321 ASC_DBG_PRT_HEX((lvl), "CDB", (uchar *) (cdb), (len));
2322
2323 #define ASC_DBG_PRT_SENSE(lvl, sense, len) \
2324 ASC_DBG_PRT_HEX((lvl), "SENSE", (uchar *) (sense), (len));
2325
2326 #define ASC_DBG_PRT_INQUIRY(lvl, inq, len) \
2327 ASC_DBG_PRT_HEX((lvl), "INQUIRY", (uchar *) (inq), (len));
2328 #endif /* ADVANSYS_DEBUG */
2329
2330 #ifdef ADVANSYS_STATS
2331
2332 /* Per board statistics structure */
2333 struct asc_stats {
2334 /* Driver Entrypoint Statistics */
2335 ADV_DCNT queuecommand; /* # calls to advansys_queuecommand() */
2336 ADV_DCNT reset; /* # calls to advansys_eh_bus_reset() */
2337 ADV_DCNT biosparam; /* # calls to advansys_biosparam() */
2338 ADV_DCNT interrupt; /* # advansys_interrupt() calls */
2339 ADV_DCNT callback; /* # calls to asc/adv_isr_callback() */
2340 ADV_DCNT done; /* # calls to request's scsi_done function */
2341 ADV_DCNT build_error; /* # asc/adv_build_req() ASC_ERROR returns. */
2342 ADV_DCNT adv_build_noreq; /* # adv_build_req() adv_req_t alloc. fail. */
2343 ADV_DCNT adv_build_nosg; /* # adv_build_req() adv_sgblk_t alloc. fail. */
2344 /* AscExeScsiQueue()/AdvExeScsiQueue() Statistics */
2345 ADV_DCNT exe_noerror; /* # ASC_NOERROR returns. */
2346 ADV_DCNT exe_busy; /* # ASC_BUSY returns. */
2347 ADV_DCNT exe_error; /* # ASC_ERROR returns. */
2348 ADV_DCNT exe_unknown; /* # unknown returns. */
2349 /* Data Transfer Statistics */
2350 ADV_DCNT xfer_cnt; /* # I/O requests received */
2351 ADV_DCNT xfer_elem; /* # scatter-gather elements */
2352 ADV_DCNT xfer_sect; /* # 512-byte blocks */
2353 };
2354 #endif /* ADVANSYS_STATS */
2355
2356 /*
2357 * Structure allocated for each board.
2358 *
2359 * This structure is allocated by scsi_host_alloc() at the end
2360 * of the 'Scsi_Host' structure starting at the 'hostdata'
2361 * field. It is guaranteed to be allocated from DMA-able memory.
2362 */
2363 struct asc_board {
2364 struct device *dev;
2365 uint flags; /* Board flags */
2366 unsigned int irq;
2367 union {
2368 ASC_DVC_VAR asc_dvc_var; /* Narrow board */
2369 ADV_DVC_VAR adv_dvc_var; /* Wide board */
2370 } dvc_var;
2371 union {
2372 ASC_DVC_CFG asc_dvc_cfg; /* Narrow board */
2373 ADV_DVC_CFG adv_dvc_cfg; /* Wide board */
2374 } dvc_cfg;
2375 ushort asc_n_io_port; /* Number I/O ports. */
2376 ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */
2377 ushort reqcnt[ADV_MAX_TID + 1]; /* Starvation request count */
2378 ADV_SCSI_BIT_ID_TYPE queue_full; /* Queue full mask */
2379 ushort queue_full_cnt[ADV_MAX_TID + 1]; /* Queue full count */
2380 union {
2381 ASCEEP_CONFIG asc_eep; /* Narrow EEPROM config. */
2382 ADVEEP_3550_CONFIG adv_3550_eep; /* 3550 EEPROM config. */
2383 ADVEEP_38C0800_CONFIG adv_38C0800_eep; /* 38C0800 EEPROM config. */
2384 ADVEEP_38C1600_CONFIG adv_38C1600_eep; /* 38C1600 EEPROM config. */
2385 } eep_config;
2386 ulong last_reset; /* Saved last reset time */
2387 /* /proc/scsi/advansys/[0...] */
2388 char *prtbuf; /* /proc print buffer */
2389 #ifdef ADVANSYS_STATS
2390 struct asc_stats asc_stats; /* Board statistics */
2391 #endif /* ADVANSYS_STATS */
2392 /*
2393 * The following fields are used only for Narrow Boards.
2394 */
2395 uchar sdtr_data[ASC_MAX_TID + 1]; /* SDTR information */
2396 /*
2397 * The following fields are used only for Wide Boards.
2398 */
2399 void __iomem *ioremap_addr; /* I/O Memory remap address. */
2400 ushort ioport; /* I/O Port address. */
2401 adv_req_t *adv_reqp; /* Request structures. */
2402 adv_sgblk_t *adv_sgblkp; /* Scatter-gather structures. */
2403 ushort bios_signature; /* BIOS Signature. */
2404 ushort bios_version; /* BIOS Version. */
2405 ushort bios_codeseg; /* BIOS Code Segment. */
2406 ushort bios_codelen; /* BIOS Code Segment Length. */
2407 };
2408
2409 #define asc_dvc_to_board(asc_dvc) container_of(asc_dvc, struct asc_board, \
2410 dvc_var.asc_dvc_var)
2411 #define adv_dvc_to_board(adv_dvc) container_of(adv_dvc, struct asc_board, \
2412 dvc_var.adv_dvc_var)
2413 #define adv_dvc_to_pdev(adv_dvc) to_pci_dev(adv_dvc_to_board(adv_dvc)->dev)
2414
2415 #ifdef ADVANSYS_DEBUG
2416 static int asc_dbglvl = 3;
2417
2418 /*
2419 * asc_prt_asc_dvc_var()
2420 */
2421 static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h)
2422 {
2423 printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h);
2424
2425 printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl "
2426 "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl);
2427
2428 printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type,
2429 (unsigned)h->init_sdtr);
2430
2431 printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, "
2432 "chip_no 0x%x,\n", (unsigned)h->sdtr_done,
2433 (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready,
2434 (unsigned)h->chip_no);
2435
2436 printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait "
2437 "%u,\n", (unsigned)h->queue_full_or_busy,
2438 (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait);
2439
2440 printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, "
2441 "in_critical_cnt %u,\n", (unsigned)h->is_in_int,
2442 (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng,
2443 (unsigned)h->in_critical_cnt);
2444
2445 printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, "
2446 "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage,
2447 (unsigned)h->init_state, (unsigned)h->no_scam,
2448 (unsigned)h->pci_fix_asyn_xfer);
2449
2450 printk(" cfg 0x%lx\n", (ulong)h->cfg);
2451 }
2452
2453 /*
2454 * asc_prt_asc_dvc_cfg()
2455 */
2456 static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h)
2457 {
2458 printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h);
2459
2460 printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n",
2461 h->can_tagged_qng, h->cmd_qng_enabled);
2462 printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n",
2463 h->disc_enable, h->sdtr_enable);
2464
2465 printk(" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, "
2466 "chip_version %d,\n", h->chip_scsi_id, h->isa_dma_speed,
2467 h->isa_dma_channel, h->chip_version);
2468
2469 printk(" mcode_date 0x%x, mcode_version %d\n",
2470 h->mcode_date, h->mcode_version);
2471 }
2472
2473 /*
2474 * asc_prt_adv_dvc_var()
2475 *
2476 * Display an ADV_DVC_VAR structure.
2477 */
2478 static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h)
2479 {
2480 printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h);
2481
2482 printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n",
2483 (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able);
2484
2485 printk(" sdtr_able 0x%x, wdtr_able 0x%x\n",
2486 (unsigned)h->sdtr_able, (unsigned)h->wdtr_able);
2487
2488 printk(" start_motor 0x%x, scsi_reset_wait 0x%x\n",
2489 (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait);
2490
2491 printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n",
2492 (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng,
2493 (ulong)h->carr_freelist);
2494
2495 printk(" icq_sp 0x%lx, irq_sp 0x%lx\n",
2496 (ulong)h->icq_sp, (ulong)h->irq_sp);
2497
2498 printk(" no_scam 0x%x, tagqng_able 0x%x\n",
2499 (unsigned)h->no_scam, (unsigned)h->tagqng_able);
2500
2501 printk(" chip_scsi_id 0x%x, cfg 0x%lx\n",
2502 (unsigned)h->chip_scsi_id, (ulong)h->cfg);
2503 }
2504
2505 /*
2506 * asc_prt_adv_dvc_cfg()
2507 *
2508 * Display an ADV_DVC_CFG structure.
2509 */
2510 static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h)
2511 {
2512 printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h);
2513
2514 printk(" disc_enable 0x%x, termination 0x%x\n",
2515 h->disc_enable, h->termination);
2516
2517 printk(" chip_version 0x%x, mcode_date 0x%x\n",
2518 h->chip_version, h->mcode_date);
2519
2520 printk(" mcode_version 0x%x, control_flag 0x%x\n",
2521 h->mcode_version, h->control_flag);
2522 }
2523
2524 /*
2525 * asc_prt_scsi_host()
2526 */
2527 static void asc_prt_scsi_host(struct Scsi_Host *s)
2528 {
2529 struct asc_board *boardp = shost_priv(s);
2530
2531 printk("Scsi_Host at addr 0x%p, device %s\n", s, dev_name(boardp->dev));
2532 printk(" host_busy %u, host_no %d, last_reset %d,\n",
2533 s->host_busy, s->host_no, (unsigned)s->last_reset);
2534
2535 printk(" base 0x%lx, io_port 0x%lx, irq %d,\n",
2536 (ulong)s->base, (ulong)s->io_port, boardp->irq);
2537
2538 printk(" dma_channel %d, this_id %d, can_queue %d,\n",
2539 s->dma_channel, s->this_id, s->can_queue);
2540
2541 printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n",
2542 s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma);
2543
2544 if (ASC_NARROW_BOARD(boardp)) {
2545 asc_prt_asc_dvc_var(&boardp->dvc_var.asc_dvc_var);
2546 asc_prt_asc_dvc_cfg(&boardp->dvc_cfg.asc_dvc_cfg);
2547 } else {
2548 asc_prt_adv_dvc_var(&boardp->dvc_var.adv_dvc_var);
2549 asc_prt_adv_dvc_cfg(&boardp->dvc_cfg.adv_dvc_cfg);
2550 }
2551 }
2552
2553 /*
2554 * asc_prt_hex()
2555 *
2556 * Print hexadecimal output in 4 byte groupings 32 bytes
2557 * or 8 double-words per line.
2558 */
2559 static void asc_prt_hex(char *f, uchar *s, int l)
2560 {
2561 int i;
2562 int j;
2563 int k;
2564 int m;
2565
2566 printk("%s: (%d bytes)\n", f, l);
2567
2568 for (i = 0; i < l; i += 32) {
2569
2570 /* Display a maximum of 8 double-words per line. */
2571 if ((k = (l - i) / 4) >= 8) {
2572 k = 8;
2573 m = 0;
2574 } else {
2575 m = (l - i) % 4;
2576 }
2577
2578 for (j = 0; j < k; j++) {
2579 printk(" %2.2X%2.2X%2.2X%2.2X",
2580 (unsigned)s[i + (j * 4)],
2581 (unsigned)s[i + (j * 4) + 1],
2582 (unsigned)s[i + (j * 4) + 2],
2583 (unsigned)s[i + (j * 4) + 3]);
2584 }
2585
2586 switch (m) {
2587 case 0:
2588 default:
2589 break;
2590 case 1:
2591 printk(" %2.2X", (unsigned)s[i + (j * 4)]);
2592 break;
2593 case 2:
2594 printk(" %2.2X%2.2X",
2595 (unsigned)s[i + (j * 4)],
2596 (unsigned)s[i + (j * 4) + 1]);
2597 break;
2598 case 3:
2599 printk(" %2.2X%2.2X%2.2X",
2600 (unsigned)s[i + (j * 4) + 1],
2601 (unsigned)s[i + (j * 4) + 2],
2602 (unsigned)s[i + (j * 4) + 3]);
2603 break;
2604 }
2605
2606 printk("\n");
2607 }
2608 }
2609
2610 /*
2611 * asc_prt_asc_scsi_q()
2612 */
2613 static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q)
2614 {
2615 ASC_SG_HEAD *sgp;
2616 int i;
2617
2618 printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q);
2619
2620 printk
2621 (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n",
2622 q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr,
2623 q->q2.tag_code);
2624
2625 printk
2626 (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n",
2627 (ulong)le32_to_cpu(q->q1.data_addr),
2628 (ulong)le32_to_cpu(q->q1.data_cnt),
2629 (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len);
2630
2631 printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n",
2632 (ulong)q->cdbptr, q->q2.cdb_len,
2633 (ulong)q->sg_head, q->q1.sg_queue_cnt);
2634
2635 if (q->sg_head) {
2636 sgp = q->sg_head;
2637 printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp);
2638 printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt,
2639 sgp->queue_cnt);
2640 for (i = 0; i < sgp->entry_cnt; i++) {
2641 printk(" [%u]: addr 0x%lx, bytes %lu\n",
2642 i, (ulong)le32_to_cpu(sgp->sg_list[i].addr),
2643 (ulong)le32_to_cpu(sgp->sg_list[i].bytes));
2644 }
2645
2646 }
2647 }
2648
2649 /*
2650 * asc_prt_asc_qdone_info()
2651 */
2652 static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q)
2653 {
2654 printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q);
2655 printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n",
2656 (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len,
2657 q->d2.tag_code);
2658 printk
2659 (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n",
2660 q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg);
2661 }
2662
2663 /*
2664 * asc_prt_adv_sgblock()
2665 *
2666 * Display an ADV_SG_BLOCK structure.
2667 */
2668 static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b)
2669 {
2670 int i;
2671
2672 printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n",
2673 (ulong)b, sgblockno);
2674 printk(" sg_cnt %u, sg_ptr 0x%lx\n",
2675 b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr));
2676 BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK);
2677 if (b->sg_ptr != 0)
2678 BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK);
2679 for (i = 0; i < b->sg_cnt; i++) {
2680 printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n",
2681 i, (ulong)b->sg_list[i].sg_addr,
2682 (ulong)b->sg_list[i].sg_count);
2683 }
2684 }
2685
2686 /*
2687 * asc_prt_adv_scsi_req_q()
2688 *
2689 * Display an ADV_SCSI_REQ_Q structure.
2690 */
2691 static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q)
2692 {
2693 int sg_blk_cnt;
2694 struct asc_sg_block *sg_ptr;
2695
2696 printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q);
2697
2698 printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n",
2699 q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag);
2700
2701 printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n",
2702 q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr);
2703
2704 printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n",
2705 (ulong)le32_to_cpu(q->data_cnt),
2706 (ulong)le32_to_cpu(q->sense_addr), q->sense_len);
2707
2708 printk
2709 (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n",
2710 q->cdb_len, q->done_status, q->host_status, q->scsi_status);
2711
2712 printk(" sg_working_ix 0x%x, target_cmd %u\n",
2713 q->sg_working_ix, q->target_cmd);
2714
2715 printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n",
2716 (ulong)le32_to_cpu(q->scsiq_rptr),
2717 (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr);
2718
2719 /* Display the request's ADV_SG_BLOCK structures. */
2720 if (q->sg_list_ptr != NULL) {
2721 sg_blk_cnt = 0;
2722 while (1) {
2723 /*
2724 * 'sg_ptr' is a physical address. Convert it to a virtual
2725 * address by indexing 'sg_blk_cnt' into the virtual address
2726 * array 'sg_list_ptr'.
2727 *
2728 * XXX - Assumes all SG physical blocks are virtually contiguous.
2729 */
2730 sg_ptr =
2731 &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]);
2732 asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr);
2733 if (sg_ptr->sg_ptr == 0) {
2734 break;
2735 }
2736 sg_blk_cnt++;
2737 }
2738 }
2739 }
2740 #endif /* ADVANSYS_DEBUG */
2741
2742 /*
2743 * The advansys chip/microcode contains a 32-bit identifier for each command
2744 * known as the 'srb'. I don't know what it stands for. The driver used
2745 * to encode the scsi_cmnd pointer by calling virt_to_bus and retrieve it
2746 * with bus_to_virt. Now the driver keeps a per-host map of integers to
2747 * pointers. It auto-expands when full, unless it can't allocate memory.
2748 * Note that an srb of 0 is treated specially by the chip/firmware, hence
2749 * the return of i+1 in this routine, and the corresponding subtraction in
2750 * the inverse routine.
2751 */
2752 #define BAD_SRB 0
2753 static u32 advansys_ptr_to_srb(struct asc_dvc_var *asc_dvc, void *ptr)
2754 {
2755 int i;
2756 void **new_ptr;
2757
2758 for (i = 0; i < asc_dvc->ptr_map_count; i++) {
2759 if (!asc_dvc->ptr_map[i])
2760 goto out;
2761 }
2762
2763 if (asc_dvc->ptr_map_count == 0)
2764 asc_dvc->ptr_map_count = 1;
2765 else
2766 asc_dvc->ptr_map_count *= 2;
2767
2768 new_ptr = krealloc(asc_dvc->ptr_map,
2769 asc_dvc->ptr_map_count * sizeof(void *), GFP_ATOMIC);
2770 if (!new_ptr)
2771 return BAD_SRB;
2772 asc_dvc->ptr_map = new_ptr;
2773 out:
2774 ASC_DBG(3, "Putting ptr %p into array offset %d\n", ptr, i);
2775 asc_dvc->ptr_map[i] = ptr;
2776 return i + 1;
2777 }
2778
2779 static void * advansys_srb_to_ptr(struct asc_dvc_var *asc_dvc, u32 srb)
2780 {
2781 void *ptr;
2782
2783 srb--;
2784 if (srb >= asc_dvc->ptr_map_count) {
2785 printk("advansys: bad SRB %u, max %u\n", srb,
2786 asc_dvc->ptr_map_count);
2787 return NULL;
2788 }
2789 ptr = asc_dvc->ptr_map[srb];
2790 asc_dvc->ptr_map[srb] = NULL;
2791 ASC_DBG(3, "Returning ptr %p from array offset %d\n", ptr, srb);
2792 return ptr;
2793 }
2794
2795 /*
2796 * advansys_info()
2797 *
2798 * Return suitable for printing on the console with the argument
2799 * adapter's configuration information.
2800 *
2801 * Note: The information line should not exceed ASC_INFO_SIZE bytes,
2802 * otherwise the static 'info' array will be overrun.
2803 */
2804 static const char *advansys_info(struct Scsi_Host *shost)
2805 {
2806 static char info[ASC_INFO_SIZE];
2807 struct asc_board *boardp = shost_priv(shost);
2808 ASC_DVC_VAR *asc_dvc_varp;
2809 ADV_DVC_VAR *adv_dvc_varp;
2810 char *busname;
2811 char *widename = NULL;
2812
2813 if (ASC_NARROW_BOARD(boardp)) {
2814 asc_dvc_varp = &boardp->dvc_var.asc_dvc_var;
2815 ASC_DBG(1, "begin\n");
2816 if (asc_dvc_varp->bus_type & ASC_IS_ISA) {
2817 if ((asc_dvc_varp->bus_type & ASC_IS_ISAPNP) ==
2818 ASC_IS_ISAPNP) {
2819 busname = "ISA PnP";
2820 } else {
2821 busname = "ISA";
2822 }
2823 sprintf(info,
2824 "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X",
2825 ASC_VERSION, busname,
2826 (ulong)shost->io_port,
2827 (ulong)shost->io_port + ASC_IOADR_GAP - 1,
2828 boardp->irq, shost->dma_channel);
2829 } else {
2830 if (asc_dvc_varp->bus_type & ASC_IS_VL) {
2831 busname = "VL";
2832 } else if (asc_dvc_varp->bus_type & ASC_IS_EISA) {
2833 busname = "EISA";
2834 } else if (asc_dvc_varp->bus_type & ASC_IS_PCI) {
2835 if ((asc_dvc_varp->bus_type & ASC_IS_PCI_ULTRA)
2836 == ASC_IS_PCI_ULTRA) {
2837 busname = "PCI Ultra";
2838 } else {
2839 busname = "PCI";
2840 }
2841 } else {
2842 busname = "?";
2843 shost_printk(KERN_ERR, shost, "unknown bus "
2844 "type %d\n", asc_dvc_varp->bus_type);
2845 }
2846 sprintf(info,
2847 "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X",
2848 ASC_VERSION, busname, (ulong)shost->io_port,
2849 (ulong)shost->io_port + ASC_IOADR_GAP - 1,
2850 boardp->irq);
2851 }
2852 } else {
2853 /*
2854 * Wide Adapter Information
2855 *
2856 * Memory-mapped I/O is used instead of I/O space to access
2857 * the adapter, but display the I/O Port range. The Memory
2858 * I/O address is displayed through the driver /proc file.
2859 */
2860 adv_dvc_varp = &boardp->dvc_var.adv_dvc_var;
2861 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
2862 widename = "Ultra-Wide";
2863 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
2864 widename = "Ultra2-Wide";
2865 } else {
2866 widename = "Ultra3-Wide";
2867 }
2868 sprintf(info,
2869 "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X",
2870 ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base,
2871 (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, boardp->irq);
2872 }
2873 BUG_ON(strlen(info) >= ASC_INFO_SIZE);
2874 ASC_DBG(1, "end\n");
2875 return info;
2876 }
2877
2878 #ifdef CONFIG_PROC_FS
2879 /*
2880 * asc_prt_line()
2881 *
2882 * If 'cp' is NULL print to the console, otherwise print to a buffer.
2883 *
2884 * Return 0 if printing to the console, otherwise return the number of
2885 * bytes written to the buffer.
2886 *
2887 * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack
2888 * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes.
2889 */
2890 static int asc_prt_line(char *buf, int buflen, char *fmt, ...)
2891 {
2892 va_list args;
2893 int ret;
2894 char s[ASC_PRTLINE_SIZE];
2895
2896 va_start(args, fmt);
2897 ret = vsprintf(s, fmt, args);
2898 BUG_ON(ret >= ASC_PRTLINE_SIZE);
2899 if (buf == NULL) {
2900 (void)printk(s);
2901 ret = 0;
2902 } else {
2903 ret = min(buflen, ret);
2904 memcpy(buf, s, ret);
2905 }
2906 va_end(args);
2907 return ret;
2908 }
2909
2910 /*
2911 * asc_prt_board_devices()
2912 *
2913 * Print driver information for devices attached to the board.
2914 *
2915 * Note: no single line should be greater than ASC_PRTLINE_SIZE,
2916 * cf. asc_prt_line().
2917 *
2918 * Return the number of characters copied into 'cp'. No more than
2919 * 'cplen' characters will be copied to 'cp'.
2920 */
2921 static int asc_prt_board_devices(struct Scsi_Host *shost, char *cp, int cplen)
2922 {
2923 struct asc_board *boardp = shost_priv(shost);
2924 int leftlen;
2925 int totlen;
2926 int len;
2927 int chip_scsi_id;
2928 int i;
2929
2930 leftlen = cplen;
2931 totlen = len = 0;
2932
2933 len = asc_prt_line(cp, leftlen,
2934 "\nDevice Information for AdvanSys SCSI Host %d:\n",
2935 shost->host_no);
2936 ASC_PRT_NEXT();
2937
2938 if (ASC_NARROW_BOARD(boardp)) {
2939 chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id;
2940 } else {
2941 chip_scsi_id = boardp->dvc_var.adv_dvc_var.chip_scsi_id;
2942 }
2943
2944 len = asc_prt_line(cp, leftlen, "Target IDs Detected:");
2945 ASC_PRT_NEXT();
2946 for (i = 0; i <= ADV_MAX_TID; i++) {
2947 if (boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) {
2948 len = asc_prt_line(cp, leftlen, " %X,", i);
2949 ASC_PRT_NEXT();
2950 }
2951 }
2952 len = asc_prt_line(cp, leftlen, " (%X=Host Adapter)\n", chip_scsi_id);
2953 ASC_PRT_NEXT();
2954
2955 return totlen;
2956 }
2957
2958 /*
2959 * Display Wide Board BIOS Information.
2960 */
2961 static int asc_prt_adv_bios(struct Scsi_Host *shost, char *cp, int cplen)
2962 {
2963 struct asc_board *boardp = shost_priv(shost);
2964 int leftlen;
2965 int totlen;
2966 int len;
2967 ushort major, minor, letter;
2968
2969 leftlen = cplen;
2970 totlen = len = 0;
2971
2972 len = asc_prt_line(cp, leftlen, "\nROM BIOS Version: ");
2973 ASC_PRT_NEXT();
2974
2975 /*
2976 * If the BIOS saved a valid signature, then fill in
2977 * the BIOS code segment base address.
2978 */
2979 if (boardp->bios_signature != 0x55AA) {
2980 len = asc_prt_line(cp, leftlen, "Disabled or Pre-3.1\n");
2981 ASC_PRT_NEXT();
2982 len = asc_prt_line(cp, leftlen,
2983 "BIOS either disabled or Pre-3.1. If it is pre-3.1, then a newer version\n");
2984 ASC_PRT_NEXT();
2985 len = asc_prt_line(cp, leftlen,
2986 "can be found at the ConnectCom FTP site: ftp://ftp.connectcom.net/pub\n");
2987 ASC_PRT_NEXT();
2988 } else {
2989 major = (boardp->bios_version >> 12) & 0xF;
2990 minor = (boardp->bios_version >> 8) & 0xF;
2991 letter = (boardp->bios_version & 0xFF);
2992
2993 len = asc_prt_line(cp, leftlen, "%d.%d%c\n",
2994 major, minor,
2995 letter >= 26 ? '?' : letter + 'A');
2996 ASC_PRT_NEXT();
2997
2998 /*
2999 * Current available ROM BIOS release is 3.1I for UW
3000 * and 3.2I for U2W. This code doesn't differentiate
3001 * UW and U2W boards.
3002 */
3003 if (major < 3 || (major <= 3 && minor < 1) ||
3004 (major <= 3 && minor <= 1 && letter < ('I' - 'A'))) {
3005 len = asc_prt_line(cp, leftlen,
3006 "Newer version of ROM BIOS is available at the ConnectCom FTP site:\n");
3007 ASC_PRT_NEXT();
3008 len = asc_prt_line(cp, leftlen,
3009 "ftp://ftp.connectcom.net/pub\n");
3010 ASC_PRT_NEXT();
3011 }
3012 }
3013
3014 return totlen;
3015 }
3016
3017 /*
3018 * Add serial number to information bar if signature AAh
3019 * is found in at bit 15-9 (7 bits) of word 1.
3020 *
3021 * Serial Number consists fo 12 alpha-numeric digits.
3022 *
3023 * 1 - Product type (A,B,C,D..) Word0: 15-13 (3 bits)
3024 * 2 - MFG Location (A,B,C,D..) Word0: 12-10 (3 bits)
3025 * 3-4 - Product ID (0-99) Word0: 9-0 (10 bits)
3026 * 5 - Product revision (A-J) Word0: " "
3027 *
3028 * Signature Word1: 15-9 (7 bits)
3029 * 6 - Year (0-9) Word1: 8-6 (3 bits) & Word2: 15 (1 bit)
3030 * 7-8 - Week of the year (1-52) Word1: 5-0 (6 bits)
3031 *
3032 * 9-12 - Serial Number (A001-Z999) Word2: 14-0 (15 bits)
3033 *
3034 * Note 1: Only production cards will have a serial number.
3035 *
3036 * Note 2: Signature is most significant 7 bits (0xFE).
3037 *
3038 * Returns ASC_TRUE if serial number found, otherwise returns ASC_FALSE.
3039 */
3040 static int asc_get_eeprom_string(ushort *serialnum, uchar *cp)
3041 {
3042 ushort w, num;
3043
3044 if ((serialnum[1] & 0xFE00) != ((ushort)0xAA << 8)) {
3045 return ASC_FALSE;
3046 } else {
3047 /*
3048 * First word - 6 digits.
3049 */
3050 w = serialnum[0];
3051
3052 /* Product type - 1st digit. */
3053 if ((*cp = 'A' + ((w & 0xE000) >> 13)) == 'H') {
3054 /* Product type is P=Prototype */
3055 *cp += 0x8;
3056 }
3057 cp++;
3058
3059 /* Manufacturing location - 2nd digit. */
3060 *cp++ = 'A' + ((w & 0x1C00) >> 10);
3061
3062 /* Product ID - 3rd, 4th digits. */
3063 num = w & 0x3FF;
3064 *cp++ = '0' + (num / 100);
3065 num %= 100;
3066 *cp++ = '0' + (num / 10);
3067
3068 /* Product revision - 5th digit. */
3069 *cp++ = 'A' + (num % 10);
3070
3071 /*
3072 * Second word
3073 */
3074 w = serialnum[1];
3075
3076 /*
3077 * Year - 6th digit.
3078 *
3079 * If bit 15 of third word is set, then the
3080 * last digit of the year is greater than 7.
3081 */
3082 if (serialnum[2] & 0x8000) {
3083 *cp++ = '8' + ((w & 0x1C0) >> 6);
3084 } else {
3085 *cp++ = '0' + ((w & 0x1C0) >> 6);
3086 }
3087
3088 /* Week of year - 7th, 8th digits. */
3089 num = w & 0x003F;
3090 *cp++ = '0' + num / 10;
3091 num %= 10;
3092 *cp++ = '0' + num;
3093
3094 /*
3095 * Third word
3096 */
3097 w = serialnum[2] & 0x7FFF;
3098
3099 /* Serial number - 9th digit. */
3100 *cp++ = 'A' + (w / 1000);
3101
3102 /* 10th, 11th, 12th digits. */
3103 num = w % 1000;
3104 *cp++ = '0' + num / 100;
3105 num %= 100;
3106 *cp++ = '0' + num / 10;
3107 num %= 10;
3108 *cp++ = '0' + num;
3109
3110 *cp = '\0'; /* Null Terminate the string. */
3111 return ASC_TRUE;
3112 }
3113 }
3114
3115 /*
3116 * asc_prt_asc_board_eeprom()
3117 *
3118 * Print board EEPROM configuration.
3119 *
3120 * Note: no single line should be greater than ASC_PRTLINE_SIZE,
3121 * cf. asc_prt_line().
3122 *
3123 * Return the number of characters copied into 'cp'. No more than
3124 * 'cplen' characters will be copied to 'cp'.
3125 */
3126 static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen)
3127 {
3128 struct asc_board *boardp = shost_priv(shost);
3129 ASC_DVC_VAR *asc_dvc_varp;
3130 int leftlen;
3131 int totlen;
3132 int len;
3133 ASCEEP_CONFIG *ep;
3134 int i;
3135 #ifdef CONFIG_ISA
3136 int isa_dma_speed[] = { 10, 8, 7, 6, 5, 4, 3, 2 };
3137 #endif /* CONFIG_ISA */
3138 uchar serialstr[13];
3139
3140 asc_dvc_varp = &boardp->dvc_var.asc_dvc_var;
3141 ep = &boardp->eep_config.asc_eep;
3142
3143 leftlen = cplen;
3144 totlen = len = 0;
3145
3146 len = asc_prt_line(cp, leftlen,
3147 "\nEEPROM Settings for AdvanSys SCSI Host %d:\n",
3148 shost->host_no);
3149 ASC_PRT_NEXT();
3150
3151 if (asc_get_eeprom_string((ushort *)&ep->adapter_info[0], serialstr)
3152 == ASC_TRUE) {
3153 len =
3154 asc_prt_line(cp, leftlen, " Serial Number: %s\n",
3155 serialstr);
3156 ASC_PRT_NEXT();
3157 } else {
3158 if (ep->adapter_info[5] == 0xBB) {
3159 len = asc_prt_line(cp, leftlen,
3160 " Default Settings Used for EEPROM-less Adapter.\n");
3161 ASC_PRT_NEXT();
3162 } else {
3163 len = asc_prt_line(cp, leftlen,
3164 " Serial Number Signature Not Present.\n");
3165 ASC_PRT_NEXT();
3166 }
3167 }
3168
3169 len = asc_prt_line(cp, leftlen,
3170 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n",
3171 ASC_EEP_GET_CHIP_ID(ep), ep->max_total_qng,
3172 ep->max_tag_qng);
3173 ASC_PRT_NEXT();
3174
3175 len = asc_prt_line(cp, leftlen,
3176 " cntl 0x%x, no_scam 0x%x\n", ep->cntl, ep->no_scam);
3177 ASC_PRT_NEXT();
3178
3179 len = asc_prt_line(cp, leftlen, " Target ID: ");
3180 ASC_PRT_NEXT();
3181 for (i = 0; i <= ASC_MAX_TID; i++) {
3182 len = asc_prt_line(cp, leftlen, " %d", i);
3183 ASC_PRT_NEXT();
3184 }
3185 len = asc_prt_line(cp, leftlen, "\n");
3186 ASC_PRT_NEXT();
3187
3188 len = asc_prt_line(cp, leftlen, " Disconnects: ");
3189 ASC_PRT_NEXT();
3190 for (i = 0; i <= ASC_MAX_TID; i++) {
3191 len = asc_prt_line(cp, leftlen, " %c",
3192 (ep->
3193 disc_enable & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3194 'N');
3195 ASC_PRT_NEXT();
3196 }
3197 len = asc_prt_line(cp, leftlen, "\n");
3198 ASC_PRT_NEXT();
3199
3200 len = asc_prt_line(cp, leftlen, " Command Queuing: ");
3201 ASC_PRT_NEXT();
3202 for (i = 0; i <= ASC_MAX_TID; i++) {
3203 len = asc_prt_line(cp, leftlen, " %c",
3204 (ep->
3205 use_cmd_qng & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3206 'N');
3207 ASC_PRT_NEXT();
3208 }
3209 len = asc_prt_line(cp, leftlen, "\n");
3210 ASC_PRT_NEXT();
3211
3212 len = asc_prt_line(cp, leftlen, " Start Motor: ");
3213 ASC_PRT_NEXT();
3214 for (i = 0; i <= ASC_MAX_TID; i++) {
3215 len = asc_prt_line(cp, leftlen, " %c",
3216 (ep->
3217 start_motor & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3218 'N');
3219 ASC_PRT_NEXT();
3220 }
3221 len = asc_prt_line(cp, leftlen, "\n");
3222 ASC_PRT_NEXT();
3223
3224 len = asc_prt_line(cp, leftlen, " Synchronous Transfer:");
3225 ASC_PRT_NEXT();
3226 for (i = 0; i <= ASC_MAX_TID; i++) {
3227 len = asc_prt_line(cp, leftlen, " %c",
3228 (ep->
3229 init_sdtr & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3230 'N');
3231 ASC_PRT_NEXT();
3232 }
3233 len = asc_prt_line(cp, leftlen, "\n");
3234 ASC_PRT_NEXT();
3235
3236 #ifdef CONFIG_ISA
3237 if (asc_dvc_varp->bus_type & ASC_IS_ISA) {
3238 len = asc_prt_line(cp, leftlen,
3239 " Host ISA DMA speed: %d MB/S\n",
3240 isa_dma_speed[ASC_EEP_GET_DMA_SPD(ep)]);
3241 ASC_PRT_NEXT();
3242 }
3243 #endif /* CONFIG_ISA */
3244
3245 return totlen;
3246 }
3247
3248 /*
3249 * asc_prt_adv_board_eeprom()
3250 *
3251 * Print board EEPROM configuration.
3252 *
3253 * Note: no single line should be greater than ASC_PRTLINE_SIZE,
3254 * cf. asc_prt_line().
3255 *
3256 * Return the number of characters copied into 'cp'. No more than
3257 * 'cplen' characters will be copied to 'cp'.
3258 */
3259 static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen)
3260 {
3261 struct asc_board *boardp = shost_priv(shost);
3262 ADV_DVC_VAR *adv_dvc_varp;
3263 int leftlen;
3264 int totlen;
3265 int len;
3266 int i;
3267 char *termstr;
3268 uchar serialstr[13];
3269 ADVEEP_3550_CONFIG *ep_3550 = NULL;
3270 ADVEEP_38C0800_CONFIG *ep_38C0800 = NULL;
3271 ADVEEP_38C1600_CONFIG *ep_38C1600 = NULL;
3272 ushort word;
3273 ushort *wordp;
3274 ushort sdtr_speed = 0;
3275
3276 adv_dvc_varp = &boardp->dvc_var.adv_dvc_var;
3277 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3278 ep_3550 = &boardp->eep_config.adv_3550_eep;
3279 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3280 ep_38C0800 = &boardp->eep_config.adv_38C0800_eep;
3281 } else {
3282 ep_38C1600 = &boardp->eep_config.adv_38C1600_eep;
3283 }
3284
3285 leftlen = cplen;
3286 totlen = len = 0;
3287
3288 len = asc_prt_line(cp, leftlen,
3289 "\nEEPROM Settings for AdvanSys SCSI Host %d:\n",
3290 shost->host_no);
3291 ASC_PRT_NEXT();
3292
3293 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3294 wordp = &ep_3550->serial_number_word1;
3295 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3296 wordp = &ep_38C0800->serial_number_word1;
3297 } else {
3298 wordp = &ep_38C1600->serial_number_word1;
3299 }
3300
3301 if (asc_get_eeprom_string(wordp, serialstr) == ASC_TRUE) {
3302 len =
3303 asc_prt_line(cp, leftlen, " Serial Number: %s\n",
3304 serialstr);
3305 ASC_PRT_NEXT();
3306 } else {
3307 len = asc_prt_line(cp, leftlen,
3308 " Serial Number Signature Not Present.\n");
3309 ASC_PRT_NEXT();
3310 }
3311
3312 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3313 len = asc_prt_line(cp, leftlen,
3314 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n",
3315 ep_3550->adapter_scsi_id,
3316 ep_3550->max_host_qng, ep_3550->max_dvc_qng);
3317 ASC_PRT_NEXT();
3318 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3319 len = asc_prt_line(cp, leftlen,
3320 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n",
3321 ep_38C0800->adapter_scsi_id,
3322 ep_38C0800->max_host_qng,
3323 ep_38C0800->max_dvc_qng);
3324 ASC_PRT_NEXT();
3325 } else {
3326 len = asc_prt_line(cp, leftlen,
3327 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n",
3328 ep_38C1600->adapter_scsi_id,
3329 ep_38C1600->max_host_qng,
3330 ep_38C1600->max_dvc_qng);
3331 ASC_PRT_NEXT();
3332 }
3333 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3334 word = ep_3550->termination;
3335 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3336 word = ep_38C0800->termination_lvd;
3337 } else {
3338 word = ep_38C1600->termination_lvd;
3339 }
3340 switch (word) {
3341 case 1:
3342 termstr = "Low Off/High Off";
3343 break;
3344 case 2:
3345 termstr = "Low Off/High On";
3346 break;
3347 case 3:
3348 termstr = "Low On/High On";
3349 break;
3350 default:
3351 case 0:
3352 termstr = "Automatic";
3353 break;
3354 }
3355
3356 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3357 len = asc_prt_line(cp, leftlen,
3358 " termination: %u (%s), bios_ctrl: 0x%x\n",
3359 ep_3550->termination, termstr,
3360 ep_3550->bios_ctrl);
3361 ASC_PRT_NEXT();
3362 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3363 len = asc_prt_line(cp, leftlen,
3364 " termination: %u (%s), bios_ctrl: 0x%x\n",
3365 ep_38C0800->termination_lvd, termstr,
3366 ep_38C0800->bios_ctrl);
3367 ASC_PRT_NEXT();
3368 } else {
3369 len = asc_prt_line(cp, leftlen,
3370 " termination: %u (%s), bios_ctrl: 0x%x\n",
3371 ep_38C1600->termination_lvd, termstr,
3372 ep_38C1600->bios_ctrl);
3373 ASC_PRT_NEXT();
3374 }
3375
3376 len = asc_prt_line(cp, leftlen, " Target ID: ");
3377 ASC_PRT_NEXT();
3378 for (i = 0; i <= ADV_MAX_TID; i++) {
3379 len = asc_prt_line(cp, leftlen, " %X", i);
3380 ASC_PRT_NEXT();
3381 }
3382 len = asc_prt_line(cp, leftlen, "\n");
3383 ASC_PRT_NEXT();
3384
3385 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3386 word = ep_3550->disc_enable;
3387 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3388 word = ep_38C0800->disc_enable;
3389 } else {
3390 word = ep_38C1600->disc_enable;
3391 }
3392 len = asc_prt_line(cp, leftlen, " Disconnects: ");
3393 ASC_PRT_NEXT();
3394 for (i = 0; i <= ADV_MAX_TID; i++) {
3395 len = asc_prt_line(cp, leftlen, " %c",
3396 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N');
3397 ASC_PRT_NEXT();
3398 }
3399 len = asc_prt_line(cp, leftlen, "\n");
3400 ASC_PRT_NEXT();
3401
3402 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3403 word = ep_3550->tagqng_able;
3404 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3405 word = ep_38C0800->tagqng_able;
3406 } else {
3407 word = ep_38C1600->tagqng_able;
3408 }
3409 len = asc_prt_line(cp, leftlen, " Command Queuing: ");
3410 ASC_PRT_NEXT();
3411 for (i = 0; i <= ADV_MAX_TID; i++) {
3412 len = asc_prt_line(cp, leftlen, " %c",
3413 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N');
3414 ASC_PRT_NEXT();
3415 }
3416 len = asc_prt_line(cp, leftlen, "\n");
3417 ASC_PRT_NEXT();
3418
3419 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3420 word = ep_3550->start_motor;
3421 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3422 word = ep_38C0800->start_motor;
3423 } else {
3424 word = ep_38C1600->start_motor;
3425 }
3426 len = asc_prt_line(cp, leftlen, " Start Motor: ");
3427 ASC_PRT_NEXT();
3428 for (i = 0; i <= ADV_MAX_TID; i++) {
3429 len = asc_prt_line(cp, leftlen, " %c",
3430 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N');
3431 ASC_PRT_NEXT();
3432 }
3433 len = asc_prt_line(cp, leftlen, "\n");
3434 ASC_PRT_NEXT();
3435
3436 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3437 len = asc_prt_line(cp, leftlen, " Synchronous Transfer:");
3438 ASC_PRT_NEXT();
3439 for (i = 0; i <= ADV_MAX_TID; i++) {
3440 len = asc_prt_line(cp, leftlen, " %c",
3441 (ep_3550->
3442 sdtr_able & ADV_TID_TO_TIDMASK(i)) ?
3443 'Y' : 'N');
3444 ASC_PRT_NEXT();
3445 }
3446 len = asc_prt_line(cp, leftlen, "\n");
3447 ASC_PRT_NEXT();
3448 }
3449
3450 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3451 len = asc_prt_line(cp, leftlen, " Ultra Transfer: ");
3452 ASC_PRT_NEXT();
3453 for (i = 0; i <= ADV_MAX_TID; i++) {
3454 len = asc_prt_line(cp, leftlen, " %c",
3455 (ep_3550->
3456 ultra_able & ADV_TID_TO_TIDMASK(i))
3457 ? 'Y' : 'N');
3458 ASC_PRT_NEXT();
3459 }
3460 len = asc_prt_line(cp, leftlen, "\n");
3461 ASC_PRT_NEXT();
3462 }
3463
3464 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
3465 word = ep_3550->wdtr_able;
3466 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
3467 word = ep_38C0800->wdtr_able;
3468 } else {
3469 word = ep_38C1600->wdtr_able;
3470 }
3471 len = asc_prt_line(cp, leftlen, " Wide Transfer: ");
3472 ASC_PRT_NEXT();
3473 for (i = 0; i <= ADV_MAX_TID; i++) {
3474 len = asc_prt_line(cp, leftlen, " %c",
3475 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N');
3476 ASC_PRT_NEXT();
3477 }
3478 len = asc_prt_line(cp, leftlen, "\n");
3479 ASC_PRT_NEXT();
3480
3481 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800 ||
3482 adv_dvc_varp->chip_type == ADV_CHIP_ASC38C1600) {
3483 len = asc_prt_line(cp, leftlen,
3484 " Synchronous Transfer Speed (Mhz):\n ");
3485 ASC_PRT_NEXT();
3486 for (i = 0; i <= ADV_MAX_TID; i++) {
3487 char *speed_str;
3488
3489 if (i == 0) {
3490 sdtr_speed = adv_dvc_varp->sdtr_speed1;
3491 } else if (i == 4) {
3492 sdtr_speed = adv_dvc_varp->sdtr_speed2;
3493 } else if (i == 8) {
3494 sdtr_speed = adv_dvc_varp->sdtr_speed3;
3495 } else if (i == 12) {
3496 sdtr_speed = adv_dvc_varp->sdtr_speed4;
3497 }
3498 switch (sdtr_speed & ADV_MAX_TID) {
3499 case 0:
3500 speed_str = "Off";
3501 break;
3502 case 1:
3503 speed_str = " 5";
3504 break;
3505 case 2:
3506 speed_str = " 10";
3507 break;
3508 case 3:
3509 speed_str = " 20";
3510 break;
3511 case 4:
3512 speed_str = " 40";
3513 break;
3514 case 5:
3515 speed_str = " 80";
3516 break;
3517 default:
3518 speed_str = "Unk";
3519 break;
3520 }
3521 len = asc_prt_line(cp, leftlen, "%X:%s ", i, speed_str);
3522 ASC_PRT_NEXT();
3523 if (i == 7) {
3524 len = asc_prt_line(cp, leftlen, "\n ");
3525 ASC_PRT_NEXT();
3526 }
3527 sdtr_speed >>= 4;
3528 }
3529 len = asc_prt_line(cp, leftlen, "\n");
3530 ASC_PRT_NEXT();
3531 }
3532
3533 return totlen;
3534 }
3535
3536 /*
3537 * asc_prt_driver_conf()
3538 *
3539 * Note: no single line should be greater than ASC_PRTLINE_SIZE,
3540 * cf. asc_prt_line().
3541 *
3542 * Return the number of characters copied into 'cp'. No more than
3543 * 'cplen' characters will be copied to 'cp'.
3544 */
3545 static int asc_prt_driver_conf(struct Scsi_Host *shost, char *cp, int cplen)
3546 {
3547 struct asc_board *boardp = shost_priv(shost);
3548 int leftlen;
3549 int totlen;
3550 int len;
3551 int chip_scsi_id;
3552
3553 leftlen = cplen;
3554 totlen = len = 0;
3555
3556 len = asc_prt_line(cp, leftlen,
3557 "\nLinux Driver Configuration and Information for AdvanSys SCSI Host %d:\n",
3558 shost->host_no);
3559 ASC_PRT_NEXT();
3560
3561 len = asc_prt_line(cp, leftlen,
3562 " host_busy %u, last_reset %u, max_id %u, max_lun %u, max_channel %u\n",
3563 shost->host_busy, shost->last_reset, shost->max_id,
3564 shost->max_lun, shost->max_channel);
3565 ASC_PRT_NEXT();
3566
3567 len = asc_prt_line(cp, leftlen,
3568 " unique_id %d, can_queue %d, this_id %d, sg_tablesize %u, cmd_per_lun %u\n",
3569 shost->unique_id, shost->can_queue, shost->this_id,
3570 shost->sg_tablesize, shost->cmd_per_lun);
3571 ASC_PRT_NEXT();
3572
3573 len = asc_prt_line(cp, leftlen,
3574 " unchecked_isa_dma %d, use_clustering %d\n",
3575 shost->unchecked_isa_dma, shost->use_clustering);
3576 ASC_PRT_NEXT();
3577
3578 len = asc_prt_line(cp, leftlen,
3579 " flags 0x%x, last_reset 0x%x, jiffies 0x%x, asc_n_io_port 0x%x\n",
3580 boardp->flags, boardp->last_reset, jiffies,
3581 boardp->asc_n_io_port);
3582 ASC_PRT_NEXT();
3583
3584 len = asc_prt_line(cp, leftlen, " io_port 0x%x\n", shost->io_port);
3585 ASC_PRT_NEXT();
3586
3587 if (ASC_NARROW_BOARD(boardp)) {
3588 chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id;
3589 } else {
3590 chip_scsi_id = boardp->dvc_var.adv_dvc_var.chip_scsi_id;
3591 }
3592
3593 return totlen;
3594 }
3595
3596 /*
3597 * asc_prt_asc_board_info()
3598 *
3599 * Print dynamic board configuration information.
3600 *
3601 * Note: no single line should be greater than ASC_PRTLINE_SIZE,
3602 * cf. asc_prt_line().
3603 *
3604 * Return the number of characters copied into 'cp'. No more than
3605 * 'cplen' characters will be copied to 'cp'.
3606 */
3607 static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen)
3608 {
3609 struct asc_board *boardp = shost_priv(shost);
3610 int chip_scsi_id;
3611 int leftlen;
3612 int totlen;
3613 int len;
3614 ASC_DVC_VAR *v;
3615 ASC_DVC_CFG *c;
3616 int i;
3617 int renegotiate = 0;
3618
3619 v = &boardp->dvc_var.asc_dvc_var;
3620 c = &boardp->dvc_cfg.asc_dvc_cfg;
3621 chip_scsi_id = c->chip_scsi_id;
3622
3623 leftlen = cplen;
3624 totlen = len = 0;
3625
3626 len = asc_prt_line(cp, leftlen,
3627 "\nAsc Library Configuration and Statistics for AdvanSys SCSI Host %d:\n",
3628 shost->host_no);
3629 ASC_PRT_NEXT();
3630
3631 len = asc_prt_line(cp, leftlen, " chip_version %u, mcode_date 0x%x, "
3632 "mcode_version 0x%x, err_code %u\n",
3633 c->chip_version, c->mcode_date, c->mcode_version,
3634 v->err_code);
3635 ASC_PRT_NEXT();
3636
3637 /* Current number of commands waiting for the host. */
3638 len = asc_prt_line(cp, leftlen,
3639 " Total Command Pending: %d\n", v->cur_total_qng);
3640 ASC_PRT_NEXT();
3641
3642 len = asc_prt_line(cp, leftlen, " Command Queuing:");
3643 ASC_PRT_NEXT();
3644 for (i = 0; i <= ASC_MAX_TID; i++) {
3645 if ((chip_scsi_id == i) ||
3646 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3647 continue;
3648 }
3649 len = asc_prt_line(cp, leftlen, " %X:%c",
3650 i,
3651 (v->
3652 use_tagged_qng & ADV_TID_TO_TIDMASK(i)) ?
3653 'Y' : 'N');
3654 ASC_PRT_NEXT();
3655 }
3656 len = asc_prt_line(cp, leftlen, "\n");
3657 ASC_PRT_NEXT();
3658
3659 /* Current number of commands waiting for a device. */
3660 len = asc_prt_line(cp, leftlen, " Command Queue Pending:");
3661 ASC_PRT_NEXT();
3662 for (i = 0; i <= ASC_MAX_TID; i++) {
3663 if ((chip_scsi_id == i) ||
3664 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3665 continue;
3666 }
3667 len = asc_prt_line(cp, leftlen, " %X:%u", i, v->cur_dvc_qng[i]);
3668 ASC_PRT_NEXT();
3669 }
3670 len = asc_prt_line(cp, leftlen, "\n");
3671 ASC_PRT_NEXT();
3672
3673 /* Current limit on number of commands that can be sent to a device. */
3674 len = asc_prt_line(cp, leftlen, " Command Queue Limit:");
3675 ASC_PRT_NEXT();
3676 for (i = 0; i <= ASC_MAX_TID; i++) {
3677 if ((chip_scsi_id == i) ||
3678 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3679 continue;
3680 }
3681 len = asc_prt_line(cp, leftlen, " %X:%u", i, v->max_dvc_qng[i]);
3682 ASC_PRT_NEXT();
3683 }
3684 len = asc_prt_line(cp, leftlen, "\n");
3685 ASC_PRT_NEXT();
3686
3687 /* Indicate whether the device has returned queue full status. */
3688 len = asc_prt_line(cp, leftlen, " Command Queue Full:");
3689 ASC_PRT_NEXT();
3690 for (i = 0; i <= ASC_MAX_TID; i++) {
3691 if ((chip_scsi_id == i) ||
3692 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3693 continue;
3694 }
3695 if (boardp->queue_full & ADV_TID_TO_TIDMASK(i)) {
3696 len = asc_prt_line(cp, leftlen, " %X:Y-%d",
3697 i, boardp->queue_full_cnt[i]);
3698 } else {
3699 len = asc_prt_line(cp, leftlen, " %X:N", i);
3700 }
3701 ASC_PRT_NEXT();
3702 }
3703 len = asc_prt_line(cp, leftlen, "\n");
3704 ASC_PRT_NEXT();
3705
3706 len = asc_prt_line(cp, leftlen, " Synchronous Transfer:");
3707 ASC_PRT_NEXT();
3708 for (i = 0; i <= ASC_MAX_TID; i++) {
3709 if ((chip_scsi_id == i) ||
3710 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3711 continue;
3712 }
3713 len = asc_prt_line(cp, leftlen, " %X:%c",
3714 i,
3715 (v->
3716 sdtr_done & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3717 'N');
3718 ASC_PRT_NEXT();
3719 }
3720 len = asc_prt_line(cp, leftlen, "\n");
3721 ASC_PRT_NEXT();
3722
3723 for (i = 0; i <= ASC_MAX_TID; i++) {
3724 uchar syn_period_ix;
3725
3726 if ((chip_scsi_id == i) ||
3727 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0) ||
3728 ((v->init_sdtr & ADV_TID_TO_TIDMASK(i)) == 0)) {
3729 continue;
3730 }
3731
3732 len = asc_prt_line(cp, leftlen, " %X:", i);
3733 ASC_PRT_NEXT();
3734
3735 if ((boardp->sdtr_data[i] & ASC_SYN_MAX_OFFSET) == 0) {
3736 len = asc_prt_line(cp, leftlen, " Asynchronous");
3737 ASC_PRT_NEXT();
3738 } else {
3739 syn_period_ix =
3740 (boardp->sdtr_data[i] >> 4) & (v->max_sdtr_index -
3741 1);
3742
3743 len = asc_prt_line(cp, leftlen,
3744 " Transfer Period Factor: %d (%d.%d Mhz),",
3745 v->sdtr_period_tbl[syn_period_ix],
3746 250 /
3747 v->sdtr_period_tbl[syn_period_ix],
3748 ASC_TENTHS(250,
3749 v->
3750 sdtr_period_tbl
3751 [syn_period_ix]));
3752 ASC_PRT_NEXT();
3753
3754 len = asc_prt_line(cp, leftlen, " REQ/ACK Offset: %d",
3755 boardp->
3756 sdtr_data[i] & ASC_SYN_MAX_OFFSET);
3757 ASC_PRT_NEXT();
3758 }
3759
3760 if ((v->sdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) {
3761 len = asc_prt_line(cp, leftlen, "*\n");
3762 renegotiate = 1;
3763 } else {
3764 len = asc_prt_line(cp, leftlen, "\n");
3765 }
3766 ASC_PRT_NEXT();
3767 }
3768
3769 if (renegotiate) {
3770 len = asc_prt_line(cp, leftlen,
3771 " * = Re-negotiation pending before next command.\n");
3772 ASC_PRT_NEXT();
3773 }
3774
3775 return totlen;
3776 }
3777
3778 /*
3779 * asc_prt_adv_board_info()
3780 *
3781 * Print dynamic board configuration information.
3782 *
3783 * Note: no single line should be greater than ASC_PRTLINE_SIZE,
3784 * cf. asc_prt_line().
3785 *
3786 * Return the number of characters copied into 'cp'. No more than
3787 * 'cplen' characters will be copied to 'cp'.
3788 */
3789 static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen)
3790 {
3791 struct asc_board *boardp = shost_priv(shost);
3792 int leftlen;
3793 int totlen;
3794 int len;
3795 int i;
3796 ADV_DVC_VAR *v;
3797 ADV_DVC_CFG *c;
3798 AdvPortAddr iop_base;
3799 ushort chip_scsi_id;
3800 ushort lramword;
3801 uchar lrambyte;
3802 ushort tagqng_able;
3803 ushort sdtr_able, wdtr_able;
3804 ushort wdtr_done, sdtr_done;
3805 ushort period = 0;
3806 int renegotiate = 0;
3807
3808 v = &boardp->dvc_var.adv_dvc_var;
3809 c = &boardp->dvc_cfg.adv_dvc_cfg;
3810 iop_base = v->iop_base;
3811 chip_scsi_id = v->chip_scsi_id;
3812
3813 leftlen = cplen;
3814 totlen = len = 0;
3815
3816 len = asc_prt_line(cp, leftlen,
3817 "\nAdv Library Configuration and Statistics for AdvanSys SCSI Host %d:\n",
3818 shost->host_no);
3819 ASC_PRT_NEXT();
3820
3821 len = asc_prt_line(cp, leftlen,
3822 " iop_base 0x%lx, cable_detect: %X, err_code %u\n",
3823 v->iop_base,
3824 AdvReadWordRegister(iop_base,
3825 IOPW_SCSI_CFG1) & CABLE_DETECT,
3826 v->err_code);
3827 ASC_PRT_NEXT();
3828
3829 len = asc_prt_line(cp, leftlen, " chip_version %u, mcode_date 0x%x, "
3830 "mcode_version 0x%x\n", c->chip_version,
3831 c->mcode_date, c->mcode_version);
3832 ASC_PRT_NEXT();
3833
3834 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able);
3835 len = asc_prt_line(cp, leftlen, " Queuing Enabled:");
3836 ASC_PRT_NEXT();
3837 for (i = 0; i <= ADV_MAX_TID; i++) {
3838 if ((chip_scsi_id == i) ||
3839 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3840 continue;
3841 }
3842
3843 len = asc_prt_line(cp, leftlen, " %X:%c",
3844 i,
3845 (tagqng_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3846 'N');
3847 ASC_PRT_NEXT();
3848 }
3849 len = asc_prt_line(cp, leftlen, "\n");
3850 ASC_PRT_NEXT();
3851
3852 len = asc_prt_line(cp, leftlen, " Queue Limit:");
3853 ASC_PRT_NEXT();
3854 for (i = 0; i <= ADV_MAX_TID; i++) {
3855 if ((chip_scsi_id == i) ||
3856 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3857 continue;
3858 }
3859
3860 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + i,
3861 lrambyte);
3862
3863 len = asc_prt_line(cp, leftlen, " %X:%d", i, lrambyte);
3864 ASC_PRT_NEXT();
3865 }
3866 len = asc_prt_line(cp, leftlen, "\n");
3867 ASC_PRT_NEXT();
3868
3869 len = asc_prt_line(cp, leftlen, " Command Pending:");
3870 ASC_PRT_NEXT();
3871 for (i = 0; i <= ADV_MAX_TID; i++) {
3872 if ((chip_scsi_id == i) ||
3873 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3874 continue;
3875 }
3876
3877 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_QUEUED_CMD + i,
3878 lrambyte);
3879
3880 len = asc_prt_line(cp, leftlen, " %X:%d", i, lrambyte);
3881 ASC_PRT_NEXT();
3882 }
3883 len = asc_prt_line(cp, leftlen, "\n");
3884 ASC_PRT_NEXT();
3885
3886 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
3887 len = asc_prt_line(cp, leftlen, " Wide Enabled:");
3888 ASC_PRT_NEXT();
3889 for (i = 0; i <= ADV_MAX_TID; i++) {
3890 if ((chip_scsi_id == i) ||
3891 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3892 continue;
3893 }
3894
3895 len = asc_prt_line(cp, leftlen, " %X:%c",
3896 i,
3897 (wdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3898 'N');
3899 ASC_PRT_NEXT();
3900 }
3901 len = asc_prt_line(cp, leftlen, "\n");
3902 ASC_PRT_NEXT();
3903
3904 AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, wdtr_done);
3905 len = asc_prt_line(cp, leftlen, " Transfer Bit Width:");
3906 ASC_PRT_NEXT();
3907 for (i = 0; i <= ADV_MAX_TID; i++) {
3908 if ((chip_scsi_id == i) ||
3909 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3910 continue;
3911 }
3912
3913 AdvReadWordLram(iop_base,
3914 ASC_MC_DEVICE_HSHK_CFG_TABLE + (2 * i),
3915 lramword);
3916
3917 len = asc_prt_line(cp, leftlen, " %X:%d",
3918 i, (lramword & 0x8000) ? 16 : 8);
3919 ASC_PRT_NEXT();
3920
3921 if ((wdtr_able & ADV_TID_TO_TIDMASK(i)) &&
3922 (wdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) {
3923 len = asc_prt_line(cp, leftlen, "*");
3924 ASC_PRT_NEXT();
3925 renegotiate = 1;
3926 }
3927 }
3928 len = asc_prt_line(cp, leftlen, "\n");
3929 ASC_PRT_NEXT();
3930
3931 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
3932 len = asc_prt_line(cp, leftlen, " Synchronous Enabled:");
3933 ASC_PRT_NEXT();
3934 for (i = 0; i <= ADV_MAX_TID; i++) {
3935 if ((chip_scsi_id == i) ||
3936 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) {
3937 continue;
3938 }
3939
3940 len = asc_prt_line(cp, leftlen, " %X:%c",
3941 i,
3942 (sdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' :
3943 'N');
3944 ASC_PRT_NEXT();
3945 }
3946 len = asc_prt_line(cp, leftlen, "\n");
3947 ASC_PRT_NEXT();
3948
3949 AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, sdtr_done);
3950 for (i = 0; i <= ADV_MAX_TID; i++) {
3951
3952 AdvReadWordLram(iop_base,
3953 ASC_MC_DEVICE_HSHK_CFG_TABLE + (2 * i),
3954 lramword);
3955 lramword &= ~0x8000;
3956
3957 if ((chip_scsi_id == i) ||
3958 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0) ||
3959 ((sdtr_able & ADV_TID_TO_TIDMASK(i)) == 0)) {
3960 continue;
3961 }
3962
3963 len = asc_prt_line(cp, leftlen, " %X:", i);
3964 ASC_PRT_NEXT();
3965
3966 if ((lramword & 0x1F) == 0) { /* Check for REQ/ACK Offset 0. */
3967 len = asc_prt_line(cp, leftlen, " Asynchronous");
3968 ASC_PRT_NEXT();
3969 } else {
3970 len =
3971 asc_prt_line(cp, leftlen,
3972 " Transfer Period Factor: ");
3973 ASC_PRT_NEXT();
3974
3975 if ((lramword & 0x1F00) == 0x1100) { /* 80 Mhz */
3976 len =
3977 asc_prt_line(cp, leftlen, "9 (80.0 Mhz),");
3978 ASC_PRT_NEXT();
3979 } else if ((lramword & 0x1F00) == 0x1000) { /* 40 Mhz */
3980 len =
3981 asc_prt_line(cp, leftlen, "10 (40.0 Mhz),");
3982 ASC_PRT_NEXT();
3983 } else { /* 20 Mhz or below. */
3984
3985 period = (((lramword >> 8) * 25) + 50) / 4;
3986
3987 if (period == 0) { /* Should never happen. */
3988 len =
3989 asc_prt_line(cp, leftlen,
3990 "%d (? Mhz), ");
3991 ASC_PRT_NEXT();
3992 } else {
3993 len = asc_prt_line(cp, leftlen,
3994 "%d (%d.%d Mhz),",
3995 period, 250 / period,
3996 ASC_TENTHS(250,
3997 period));
3998 ASC_PRT_NEXT();
3999 }
4000 }
4001
4002 len = asc_prt_line(cp, leftlen, " REQ/ACK Offset: %d",
4003 lramword & 0x1F);
4004 ASC_PRT_NEXT();
4005 }
4006
4007 if ((sdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) {
4008 len = asc_prt_line(cp, leftlen, "*\n");
4009 renegotiate = 1;
4010 } else {
4011 len = asc_prt_line(cp, leftlen, "\n");
4012 }
4013 ASC_PRT_NEXT();
4014 }
4015
4016 if (renegotiate) {
4017 len = asc_prt_line(cp, leftlen,
4018 " * = Re-negotiation pending before next command.\n");
4019 ASC_PRT_NEXT();
4020 }
4021
4022 return totlen;
4023 }
4024
4025 /*
4026 * asc_proc_copy()
4027 *
4028 * Copy proc information to a read buffer taking into account the current
4029 * read offset in the file and the remaining space in the read buffer.
4030 */
4031 static int
4032 asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen,
4033 char *cp, int cplen)
4034 {
4035 int cnt = 0;
4036
4037 ASC_DBG(2, "offset %d, advoffset %d, cplen %d\n",
4038 (unsigned)offset, (unsigned)advoffset, cplen);
4039 if (offset <= advoffset) {
4040 /* Read offset below current offset, copy everything. */
4041 cnt = min(cplen, leftlen);
4042 ASC_DBG(2, "curbuf 0x%lx, cp 0x%lx, cnt %d\n",
4043 (ulong)curbuf, (ulong)cp, cnt);
4044 memcpy(curbuf, cp, cnt);
4045 } else if (offset < advoffset + cplen) {
4046 /* Read offset within current range, partial copy. */
4047 cnt = (advoffset + cplen) - offset;
4048 cp = (cp + cplen) - cnt;
4049 cnt = min(cnt, leftlen);
4050 ASC_DBG(2, "curbuf 0x%lx, cp 0x%lx, cnt %d\n",
4051 (ulong)curbuf, (ulong)cp, cnt);
4052 memcpy(curbuf, cp, cnt);
4053 }
4054 return cnt;
4055 }
4056
4057 #ifdef ADVANSYS_STATS
4058 /*
4059 * asc_prt_board_stats()
4060 *
4061 * Note: no single line should be greater than ASC_PRTLINE_SIZE,
4062 * cf. asc_prt_line().
4063 *
4064 * Return the number of characters copied into 'cp'. No more than
4065 * 'cplen' characters will be copied to 'cp'.
4066 */
4067 static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen)
4068 {
4069 struct asc_board *boardp = shost_priv(shost);
4070 struct asc_stats *s = &boardp->asc_stats;
4071
4072 int leftlen = cplen;
4073 int len, totlen = 0;
4074
4075 len = asc_prt_line(cp, leftlen,
4076 "\nLinux Driver Statistics for AdvanSys SCSI Host %d:\n",
4077 shost->host_no);
4078 ASC_PRT_NEXT();
4079
4080 len = asc_prt_line(cp, leftlen,
4081 " queuecommand %lu, reset %lu, biosparam %lu, interrupt %lu\n",
4082 s->queuecommand, s->reset, s->biosparam,
4083 s->interrupt);
4084 ASC_PRT_NEXT();
4085
4086 len = asc_prt_line(cp, leftlen,
4087 " callback %lu, done %lu, build_error %lu, build_noreq %lu, build_nosg %lu\n",
4088 s->callback, s->done, s->build_error,
4089 s->adv_build_noreq, s->adv_build_nosg);
4090 ASC_PRT_NEXT();
4091
4092 len = asc_prt_line(cp, leftlen,
4093 " exe_noerror %lu, exe_busy %lu, exe_error %lu, exe_unknown %lu\n",
4094 s->exe_noerror, s->exe_busy, s->exe_error,
4095 s->exe_unknown);
4096 ASC_PRT_NEXT();
4097
4098 /*
4099 * Display data transfer statistics.
4100 */
4101 if (s->xfer_cnt > 0) {
4102 len = asc_prt_line(cp, leftlen, " xfer_cnt %lu, xfer_elem %lu, ",
4103 s->xfer_cnt, s->xfer_elem);
4104 ASC_PRT_NEXT();
4105
4106 len = asc_prt_line(cp, leftlen, "xfer_bytes %lu.%01lu kb\n",
4107 s->xfer_sect / 2, ASC_TENTHS(s->xfer_sect, 2));
4108 ASC_PRT_NEXT();
4109
4110 /* Scatter gather transfer statistics */
4111 len = asc_prt_line(cp, leftlen, " avg_num_elem %lu.%01lu, ",
4112 s->xfer_elem / s->xfer_cnt,
4113 ASC_TENTHS(s->xfer_elem, s->xfer_cnt));
4114 ASC_PRT_NEXT();
4115
4116 len = asc_prt_line(cp, leftlen, "avg_elem_size %lu.%01lu kb, ",
4117 (s->xfer_sect / 2) / s->xfer_elem,
4118 ASC_TENTHS((s->xfer_sect / 2), s->xfer_elem));
4119 ASC_PRT_NEXT();
4120
4121 len = asc_prt_line(cp, leftlen, "avg_xfer_size %lu.%01lu kb\n",
4122 (s->xfer_sect / 2) / s->xfer_cnt,
4123 ASC_TENTHS((s->xfer_sect / 2), s->xfer_cnt));
4124 ASC_PRT_NEXT();
4125 }
4126
4127 return totlen;
4128 }
4129 #endif /* ADVANSYS_STATS */
4130
4131 /*
4132 * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...}
4133 *
4134 * *buffer: I/O buffer
4135 * **start: if inout == FALSE pointer into buffer where user read should start
4136 * offset: current offset into a /proc/scsi/advansys/[0...] file
4137 * length: length of buffer
4138 * hostno: Scsi_Host host_no
4139 * inout: TRUE - user is writing; FALSE - user is reading
4140 *
4141 * Return the number of bytes read from or written to a
4142 * /proc/scsi/advansys/[0...] file.
4143 *
4144 * Note: This function uses the per board buffer 'prtbuf' which is
4145 * allocated when the board is initialized in advansys_detect(). The
4146 * buffer is ASC_PRTBUF_SIZE bytes. The function asc_proc_copy() is
4147 * used to write to the buffer. The way asc_proc_copy() is written
4148 * if 'prtbuf' is too small it will not be overwritten. Instead the
4149 * user just won't get all the available statistics.
4150 */
4151 static int
4152 advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
4153 off_t offset, int length, int inout)
4154 {
4155 struct asc_board *boardp = shost_priv(shost);
4156 char *cp;
4157 int cplen;
4158 int cnt;
4159 int totcnt;
4160 int leftlen;
4161 char *curbuf;
4162 off_t advoffset;
4163
4164 ASC_DBG(1, "begin\n");
4165
4166 /*
4167 * User write not supported.
4168 */
4169 if (inout == TRUE)
4170 return -ENOSYS;
4171
4172 /*
4173 * User read of /proc/scsi/advansys/[0...] file.
4174 */
4175
4176 /* Copy read data starting at the beginning of the buffer. */
4177 *start = buffer;
4178 curbuf = buffer;
4179 advoffset = 0;
4180 totcnt = 0;
4181 leftlen = length;
4182
4183 /*
4184 * Get board configuration information.
4185 *
4186 * advansys_info() returns the board string from its own static buffer.
4187 */
4188 cp = (char *)advansys_info(shost);
4189 strcat(cp, "\n");
4190 cplen = strlen(cp);
4191 /* Copy board information. */
4192 cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
4193 totcnt += cnt;
4194 leftlen -= cnt;
4195 if (leftlen == 0) {
4196 ASC_DBG(1, "totcnt %d\n", totcnt);
4197 return totcnt;
4198 }
4199 advoffset += cplen;
4200 curbuf += cnt;
4201
4202 /*
4203 * Display Wide Board BIOS Information.
4204 */
4205 if (!ASC_NARROW_BOARD(boardp)) {
4206 cp = boardp->prtbuf;
4207 cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE);
4208 BUG_ON(cplen >= ASC_PRTBUF_SIZE);
4209 cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp,
4210 cplen);
4211 totcnt += cnt;
4212 leftlen -= cnt;
4213 if (leftlen == 0) {
4214 ASC_DBG(1, "totcnt %d\n", totcnt);
4215 return totcnt;
4216 }
4217 advoffset += cplen;
4218 curbuf += cnt;
4219 }
4220
4221 /*
4222 * Display driver information for each device attached to the board.
4223 */
4224 cp = boardp->prtbuf;
4225 cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE);
4226 BUG_ON(cplen >= ASC_PRTBUF_SIZE);
4227 cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
4228 totcnt += cnt;
4229 leftlen -= cnt;
4230 if (leftlen == 0) {
4231 ASC_DBG(1, "totcnt %d\n", totcnt);
4232 return totcnt;
4233 }
4234 advoffset += cplen;
4235 curbuf += cnt;
4236
4237 /*
4238 * Display EEPROM configuration for the board.
4239 */
4240 cp = boardp->prtbuf;
4241 if (ASC_NARROW_BOARD(boardp)) {
4242 cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE);
4243 } else {
4244 cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE);
4245 }
4246 BUG_ON(cplen >= ASC_PRTBUF_SIZE);
4247 cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
4248 totcnt += cnt;
4249 leftlen -= cnt;
4250 if (leftlen == 0) {
4251 ASC_DBG(1, "totcnt %d\n", totcnt);
4252 return totcnt;
4253 }
4254 advoffset += cplen;
4255 curbuf += cnt;
4256
4257 /*
4258 * Display driver configuration and information for the board.
4259 */
4260 cp = boardp->prtbuf;
4261 cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE);
4262 BUG_ON(cplen >= ASC_PRTBUF_SIZE);
4263 cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
4264 totcnt += cnt;
4265 leftlen -= cnt;
4266 if (leftlen == 0) {
4267 ASC_DBG(1, "totcnt %d\n", totcnt);
4268 return totcnt;
4269 }
4270 advoffset += cplen;
4271 curbuf += cnt;
4272
4273 #ifdef ADVANSYS_STATS
4274 /*
4275 * Display driver statistics for the board.
4276 */
4277 cp = boardp->prtbuf;
4278 cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE);
4279 BUG_ON(cplen >= ASC_PRTBUF_SIZE);
4280 cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
4281 totcnt += cnt;
4282 leftlen -= cnt;
4283 if (leftlen == 0) {
4284 ASC_DBG(1, "totcnt %d\n", totcnt);
4285 return totcnt;
4286 }
4287 advoffset += cplen;
4288 curbuf += cnt;
4289 #endif /* ADVANSYS_STATS */
4290
4291 /*
4292 * Display Asc Library dynamic configuration information
4293 * for the board.
4294 */
4295 cp = boardp->prtbuf;
4296 if (ASC_NARROW_BOARD(boardp)) {
4297 cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE);
4298 } else {
4299 cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE);
4300 }
4301 BUG_ON(cplen >= ASC_PRTBUF_SIZE);
4302 cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
4303 totcnt += cnt;
4304 leftlen -= cnt;
4305 if (leftlen == 0) {
4306 ASC_DBG(1, "totcnt %d\n", totcnt);
4307 return totcnt;
4308 }
4309 advoffset += cplen;
4310 curbuf += cnt;
4311
4312 ASC_DBG(1, "totcnt %d\n", totcnt);
4313
4314 return totcnt;
4315 }
4316 #endif /* CONFIG_PROC_FS */
4317
4318 static void asc_scsi_done(struct scsi_cmnd *scp)
4319 {
4320 scsi_dma_unmap(scp);
4321 ASC_STATS(scp->device->host, done);
4322 scp->scsi_done(scp);
4323 }
4324
4325 static void AscSetBank(PortAddr iop_base, uchar bank)
4326 {
4327 uchar val;
4328
4329 val = AscGetChipControl(iop_base) &
4330 (~
4331 (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET |
4332 CC_CHIP_RESET));
4333 if (bank == 1) {
4334 val |= CC_BANK_ONE;
4335 } else if (bank == 2) {
4336 val |= CC_DIAG | CC_BANK_ONE;
4337 } else {
4338 val &= ~CC_BANK_ONE;
4339 }
4340 AscSetChipControl(iop_base, val);
4341 }
4342
4343 static void AscSetChipIH(PortAddr iop_base, ushort ins_code)
4344 {
4345 AscSetBank(iop_base, 1);
4346 AscWriteChipIH(iop_base, ins_code);
4347 AscSetBank(iop_base, 0);
4348 }
4349
4350 static int AscStartChip(PortAddr iop_base)
4351 {
4352 AscSetChipControl(iop_base, 0);
4353 if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) {
4354 return (0);
4355 }
4356 return (1);
4357 }
4358
4359 static int AscStopChip(PortAddr iop_base)
4360 {
4361 uchar cc_val;
4362
4363 cc_val =
4364 AscGetChipControl(iop_base) &
4365 (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG));
4366 AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT));
4367 AscSetChipIH(iop_base, INS_HALT);
4368 AscSetChipIH(iop_base, INS_RFLAG_WTM);
4369 if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) {
4370 return (0);
4371 }
4372 return (1);
4373 }
4374
4375 static int AscIsChipHalted(PortAddr iop_base)
4376 {
4377 if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) {
4378 if ((AscGetChipControl(iop_base) & CC_HALT) != 0) {
4379 return (1);
4380 }
4381 }
4382 return (0);
4383 }
4384
4385 static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc)
4386 {
4387 PortAddr iop_base;
4388 int i = 10;
4389
4390 iop_base = asc_dvc->iop_base;
4391 while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE)
4392 && (i-- > 0)) {
4393 mdelay(100);
4394 }
4395 AscStopChip(iop_base);
4396 AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT);
4397 udelay(60);
4398 AscSetChipIH(iop_base, INS_RFLAG_WTM);
4399 AscSetChipIH(iop_base, INS_HALT);
4400 AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT);
4401 AscSetChipControl(iop_base, CC_HALT);
4402 mdelay(200);
4403 AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT);
4404 AscSetChipStatus(iop_base, 0);
4405 return (AscIsChipHalted(iop_base));
4406 }
4407
4408 static int AscFindSignature(PortAddr iop_base)
4409 {
4410 ushort sig_word;
4411
4412 ASC_DBG(1, "AscGetChipSignatureByte(0x%x) 0x%x\n",
4413 iop_base, AscGetChipSignatureByte(iop_base));
4414 if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) {
4415 ASC_DBG(1, "AscGetChipSignatureWord(0x%x) 0x%x\n",
4416 iop_base, AscGetChipSignatureWord(iop_base));
4417 sig_word = AscGetChipSignatureWord(iop_base);
4418 if ((sig_word == (ushort)ASC_1000_ID0W) ||
4419 (sig_word == (ushort)ASC_1000_ID0W_FIX)) {
4420 return (1);
4421 }
4422 }
4423 return (0);
4424 }
4425
4426 static void AscEnableInterrupt(PortAddr iop_base)
4427 {
4428 ushort cfg;
4429
4430 cfg = AscGetChipCfgLsw(iop_base);
4431 AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON);
4432 }
4433
4434 static void AscDisableInterrupt(PortAddr iop_base)
4435 {
4436 ushort cfg;
4437
4438 cfg = AscGetChipCfgLsw(iop_base);
4439 AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON));
4440 }
4441
4442 static uchar AscReadLramByte(PortAddr iop_base, ushort addr)
4443 {
4444 unsigned char byte_data;
4445 unsigned short word_data;
4446
4447 if (isodd_word(addr)) {
4448 AscSetChipLramAddr(iop_base, addr - 1);
4449 word_data = AscGetChipLramData(iop_base);
4450 byte_data = (word_data >> 8) & 0xFF;
4451 } else {
4452 AscSetChipLramAddr(iop_base, addr);
4453 word_data = AscGetChipLramData(iop_base);
4454 byte_data = word_data & 0xFF;
4455 }
4456 return byte_data;
4457 }
4458
4459 static ushort AscReadLramWord(PortAddr iop_base, ushort addr)
4460 {
4461 ushort word_data;
4462
4463 AscSetChipLramAddr(iop_base, addr);
4464 word_data = AscGetChipLramData(iop_base);
4465 return (word_data);
4466 }
4467
4468 #if CC_VERY_LONG_SG_LIST
4469 static ASC_DCNT AscReadLramDWord(PortAddr iop_base, ushort addr)
4470 {
4471 ushort val_low, val_high;
4472 ASC_DCNT dword_data;
4473
4474 AscSetChipLramAddr(iop_base, addr);
4475 val_low = AscGetChipLramData(iop_base);
4476 val_high = AscGetChipLramData(iop_base);
4477 dword_data = ((ASC_DCNT) val_high << 16) | (ASC_DCNT) val_low;
4478 return (dword_data);
4479 }
4480 #endif /* CC_VERY_LONG_SG_LIST */
4481
4482 static void
4483 AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words)
4484 {
4485 int i;
4486
4487 AscSetChipLramAddr(iop_base, s_addr);
4488 for (i = 0; i < words; i++) {
4489 AscSetChipLramData(iop_base, set_wval);
4490 }
4491 }
4492
4493 static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val)
4494 {
4495 AscSetChipLramAddr(iop_base, addr);
4496 AscSetChipLramData(iop_base, word_val);
4497 }
4498
4499 static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val)
4500 {
4501 ushort word_data;
4502
4503 if (isodd_word(addr)) {
4504 addr--;
4505 word_data = AscReadLramWord(iop_base, addr);
4506 word_data &= 0x00FF;
4507 word_data |= (((ushort)byte_val << 8) & 0xFF00);
4508 } else {
4509 word_data = AscReadLramWord(iop_base, addr);
4510 word_data &= 0xFF00;
4511 word_data |= ((ushort)byte_val & 0x00FF);
4512 }
4513 AscWriteLramWord(iop_base, addr, word_data);
4514 }
4515
4516 /*
4517 * Copy 2 bytes to LRAM.
4518 *
4519 * The source data is assumed to be in little-endian order in memory
4520 * and is maintained in little-endian order when written to LRAM.
4521 */
4522 static void
4523 AscMemWordCopyPtrToLram(PortAddr iop_base, ushort s_addr,
4524 const uchar *s_buffer, int words)
4525 {
4526 int i;
4527
4528 AscSetChipLramAddr(iop_base, s_addr);
4529 for (i = 0; i < 2 * words; i += 2) {
4530 /*
4531 * On a little-endian system the second argument below
4532 * produces a little-endian ushort which is written to
4533 * LRAM in little-endian order. On a big-endian system
4534 * the second argument produces a big-endian ushort which
4535 * is "transparently" byte-swapped by outpw() and written
4536 * in little-endian order to LRAM.
4537 */
4538 outpw(iop_base + IOP_RAM_DATA,
4539 ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]);
4540 }
4541 }
4542
4543 /*
4544 * Copy 4 bytes to LRAM.
4545 *
4546 * The source data is assumed to be in little-endian order in memory
4547 * and is maintained in little-endian order when writen to LRAM.
4548 */
4549 static void
4550 AscMemDWordCopyPtrToLram(PortAddr iop_base,
4551 ushort s_addr, uchar *s_buffer, int dwords)
4552 {
4553 int i;
4554
4555 AscSetChipLramAddr(iop_base, s_addr);
4556 for (i = 0; i < 4 * dwords; i += 4) {
4557 outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */
4558 outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */
4559 }
4560 }
4561
4562 /*
4563 * Copy 2 bytes from LRAM.
4564 *
4565 * The source data is assumed to be in little-endian order in LRAM
4566 * and is maintained in little-endian order when written to memory.
4567 */
4568 static void
4569 AscMemWordCopyPtrFromLram(PortAddr iop_base,
4570 ushort s_addr, uchar *d_buffer, int words)
4571 {
4572 int i;
4573 ushort word;
4574
4575 AscSetChipLramAddr(iop_base, s_addr);
4576 for (i = 0; i < 2 * words; i += 2) {
4577 word = inpw(iop_base + IOP_RAM_DATA);
4578 d_buffer[i] = word & 0xff;
4579 d_buffer[i + 1] = (word >> 8) & 0xff;
4580 }
4581 }
4582
4583 static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words)
4584 {
4585 ASC_DCNT sum;
4586 int i;
4587
4588 sum = 0L;
4589 for (i = 0; i < words; i++, s_addr += 2) {
4590 sum += AscReadLramWord(iop_base, s_addr);
4591 }
4592 return (sum);
4593 }
4594
4595 static ushort AscInitLram(ASC_DVC_VAR *asc_dvc)
4596 {
4597 uchar i;
4598 ushort s_addr;
4599 PortAddr iop_base;
4600 ushort warn_code;
4601
4602 iop_base = asc_dvc->iop_base;
4603 warn_code = 0;
4604 AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0,
4605 (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) *
4606 64) >> 1));
4607 i = ASC_MIN_ACTIVE_QNO;
4608 s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE;
4609 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD),
4610 (uchar)(i + 1));
4611 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD),
4612 (uchar)(asc_dvc->max_total_qng));
4613 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO),
4614 (uchar)i);
4615 i++;
4616 s_addr += ASC_QBLK_SIZE;
4617 for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) {
4618 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD),
4619 (uchar)(i + 1));
4620 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD),
4621 (uchar)(i - 1));
4622 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO),
4623 (uchar)i);
4624 }
4625 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD),
4626 (uchar)ASC_QLINK_END);
4627 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD),
4628 (uchar)(asc_dvc->max_total_qng - 1));
4629 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO),
4630 (uchar)asc_dvc->max_total_qng);
4631 i++;
4632 s_addr += ASC_QBLK_SIZE;
4633 for (; i <= (uchar)(asc_dvc->max_total_qng + 3);
4634 i++, s_addr += ASC_QBLK_SIZE) {
4635 AscWriteLramByte(iop_base,
4636 (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i);
4637 AscWriteLramByte(iop_base,
4638 (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i);
4639 AscWriteLramByte(iop_base,
4640 (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i);
4641 }
4642 return warn_code;
4643 }
4644
4645 static ASC_DCNT
4646 AscLoadMicroCode(PortAddr iop_base, ushort s_addr,
4647 const uchar *mcode_buf, ushort mcode_size)
4648 {
4649 ASC_DCNT chksum;
4650 ushort mcode_word_size;
4651 ushort mcode_chksum;
4652
4653 /* Write the microcode buffer starting at LRAM address 0. */
4654 mcode_word_size = (ushort)(mcode_size >> 1);
4655 AscMemWordSetLram(iop_base, s_addr, 0, mcode_word_size);
4656 AscMemWordCopyPtrToLram(iop_base, s_addr, mcode_buf, mcode_word_size);
4657
4658 chksum = AscMemSumLramWord(iop_base, s_addr, mcode_word_size);
4659 ASC_DBG(1, "chksum 0x%lx\n", (ulong)chksum);
4660 mcode_chksum = (ushort)AscMemSumLramWord(iop_base,
4661 (ushort)ASC_CODE_SEC_BEG,
4662 (ushort)((mcode_size -
4663 s_addr - (ushort)
4664 ASC_CODE_SEC_BEG) /
4665 2));
4666 ASC_DBG(1, "mcode_chksum 0x%lx\n", (ulong)mcode_chksum);
4667 AscWriteLramWord(iop_base, ASCV_MCODE_CHKSUM_W, mcode_chksum);
4668 AscWriteLramWord(iop_base, ASCV_MCODE_SIZE_W, mcode_size);
4669 return chksum;
4670 }
4671
4672 static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc)
4673 {
4674 PortAddr iop_base;
4675 int i;
4676 ushort lram_addr;
4677
4678 iop_base = asc_dvc->iop_base;
4679 AscPutRiscVarFreeQHead(iop_base, 1);
4680 AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng);
4681 AscPutVarFreeQHead(iop_base, 1);
4682 AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng);
4683 AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B,
4684 (uchar)((int)asc_dvc->max_total_qng + 1));
4685 AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B,
4686 (uchar)((int)asc_dvc->max_total_qng + 2));
4687 AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B,
4688 asc_dvc->max_total_qng);
4689 AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0);
4690 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
4691 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0);
4692 AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0);
4693 AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0);
4694 AscPutQDoneInProgress(iop_base, 0);
4695 lram_addr = ASC_QADR_BEG;
4696 for (i = 0; i < 32; i++, lram_addr += 2) {
4697 AscWriteLramWord(iop_base, lram_addr, 0);
4698 }
4699 }
4700
4701 static ushort AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc)
4702 {
4703 int i;
4704 ushort warn_code;
4705 PortAddr iop_base;
4706 ASC_PADDR phy_addr;
4707 ASC_DCNT phy_size;
4708 struct asc_board *board = asc_dvc_to_board(asc_dvc);
4709
4710 iop_base = asc_dvc->iop_base;
4711 warn_code = 0;
4712 for (i = 0; i <= ASC_MAX_TID; i++) {
4713 AscPutMCodeInitSDTRAtID(iop_base, i,
4714 asc_dvc->cfg->sdtr_period_offset[i]);
4715 }
4716
4717 AscInitQLinkVar(asc_dvc);
4718 AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B,
4719 asc_dvc->cfg->disc_enable);
4720 AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B,
4721 ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id));
4722
4723 /* Ensure overrun buffer is aligned on an 8 byte boundary. */
4724 BUG_ON((unsigned long)asc_dvc->overrun_buf & 7);
4725 asc_dvc->overrun_dma = dma_map_single(board->dev, asc_dvc->overrun_buf,
4726 ASC_OVERRUN_BSIZE, DMA_FROM_DEVICE);
4727 phy_addr = cpu_to_le32(asc_dvc->overrun_dma);
4728 AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D,
4729 (uchar *)&phy_addr, 1);
4730 phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE);
4731 AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D,
4732 (uchar *)&phy_size, 1);
4733
4734 asc_dvc->cfg->mcode_date =
4735 AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W);
4736 asc_dvc->cfg->mcode_version =
4737 AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W);
4738
4739 AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR);
4740 if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) {
4741 asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR;
4742 return warn_code;
4743 }
4744 if (AscStartChip(iop_base) != 1) {
4745 asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP;
4746 return warn_code;
4747 }
4748
4749 return warn_code;
4750 }
4751
4752 static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc)
4753 {
4754 const struct firmware *fw;
4755 const char fwname[] = "advansys/mcode.bin";
4756 int err;
4757 unsigned long chksum;
4758 ushort warn_code;
4759 PortAddr iop_base;
4760
4761 iop_base = asc_dvc->iop_base;
4762 warn_code = 0;
4763 if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) &&
4764 !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) {
4765 AscResetChipAndScsiBus(asc_dvc);
4766 mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */
4767 }
4768 asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC;
4769 if (asc_dvc->err_code != 0)
4770 return UW_ERR;
4771 if (!AscFindSignature(asc_dvc->iop_base)) {
4772 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE;
4773 return warn_code;
4774 }
4775 AscDisableInterrupt(iop_base);
4776 warn_code |= AscInitLram(asc_dvc);
4777 if (asc_dvc->err_code != 0)
4778 return UW_ERR;
4779
4780 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev);
4781 if (err) {
4782 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
4783 fwname, err);
4784 asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM;
4785 return err;
4786 }
4787 if (fw->size < 4) {
4788 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n",
4789 fw->size, fwname);
4790 release_firmware(fw);
4791 asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM;
4792 return -EINVAL;
4793 }
4794 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) |
4795 (fw->data[1] << 8) | fw->data[0];
4796 ASC_DBG(1, "_asc_mcode_chksum 0x%lx\n", (ulong)chksum);
4797 if (AscLoadMicroCode(iop_base, 0, &fw->data[4],
4798 fw->size - 4) != chksum) {
4799 asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM;
4800 release_firmware(fw);
4801 return warn_code;
4802 }
4803 release_firmware(fw);
4804 warn_code |= AscInitMicroCodeVar(asc_dvc);
4805 asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC;
4806 AscEnableInterrupt(iop_base);
4807 return warn_code;
4808 }
4809
4810 /*
4811 * Load the Microcode
4812 *
4813 * Write the microcode image to RISC memory starting at address 0.
4814 *
4815 * The microcode is stored compressed in the following format:
4816 *
4817 * 254 word (508 byte) table indexed by byte code followed
4818 * by the following byte codes:
4819 *
4820 * 1-Byte Code:
4821 * 00: Emit word 0 in table.
4822 * 01: Emit word 1 in table.
4823 * .
4824 * FD: Emit word 253 in table.
4825 *
4826 * Multi-Byte Code:
4827 * FE WW WW: (3 byte code) Word to emit is the next word WW WW.
4828 * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW.
4829 *
4830 * Returns 0 or an error if the checksum doesn't match
4831 */
4832 static int AdvLoadMicrocode(AdvPortAddr iop_base, const unsigned char *buf,
4833 int size, int memsize, int chksum)
4834 {
4835 int i, j, end, len = 0;
4836 ADV_DCNT sum;
4837
4838 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0);
4839
4840 for (i = 253 * 2; i < size; i++) {
4841 if (buf[i] == 0xff) {
4842 unsigned short word = (buf[i + 3] << 8) | buf[i + 2];
4843 for (j = 0; j < buf[i + 1]; j++) {
4844 AdvWriteWordAutoIncLram(iop_base, word);
4845 len += 2;
4846 }
4847 i += 3;
4848 } else if (buf[i] == 0xfe) {
4849 unsigned short word = (buf[i + 2] << 8) | buf[i + 1];
4850 AdvWriteWordAutoIncLram(iop_base, word);
4851 i += 2;
4852 len += 2;
4853 } else {
4854 unsigned int off = buf[i] * 2;
4855 unsigned short word = (buf[off + 1] << 8) | buf[off];
4856 AdvWriteWordAutoIncLram(iop_base, word);
4857 len += 2;
4858 }
4859 }
4860
4861 end = len;
4862
4863 while (len < memsize) {
4864 AdvWriteWordAutoIncLram(iop_base, 0);
4865 len += 2;
4866 }
4867
4868 /* Verify the microcode checksum. */
4869 sum = 0;
4870 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0);
4871
4872 for (len = 0; len < end; len += 2) {
4873 sum += AdvReadWordAutoIncLram(iop_base);
4874 }
4875
4876 if (sum != chksum)
4877 return ASC_IERR_MCODE_CHKSUM;
4878
4879 return 0;
4880 }
4881
4882 static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc)
4883 {
4884 ADV_CARR_T *carrp;
4885 ADV_SDCNT buf_size;
4886 ADV_PADDR carr_paddr;
4887
4888 carrp = (ADV_CARR_T *) ADV_16BALIGN(asc_dvc->carrier_buf);
4889 asc_dvc->carr_freelist = NULL;
4890 if (carrp == asc_dvc->carrier_buf) {
4891 buf_size = ADV_CARRIER_BUFSIZE;
4892 } else {
4893 buf_size = ADV_CARRIER_BUFSIZE - sizeof(ADV_CARR_T);
4894 }
4895
4896 do {
4897 /* Get physical address of the carrier 'carrp'. */
4898 carr_paddr = cpu_to_le32(virt_to_bus(carrp));
4899
4900 buf_size -= sizeof(ADV_CARR_T);
4901
4902 carrp->carr_pa = carr_paddr;
4903 carrp->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(carrp));
4904
4905 /*
4906 * Insert the carrier at the beginning of the freelist.
4907 */
4908 carrp->next_vpa =
4909 cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist));
4910 asc_dvc->carr_freelist = carrp;
4911
4912 carrp++;
4913 } while (buf_size > 0);
4914 }
4915
4916 /*
4917 * Send an idle command to the chip and wait for completion.
4918 *
4919 * Command completion is polled for once per microsecond.
4920 *
4921 * The function can be called from anywhere including an interrupt handler.
4922 * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical()
4923 * functions to prevent reentrancy.
4924 *
4925 * Return Values:
4926 * ADV_TRUE - command completed successfully
4927 * ADV_FALSE - command failed
4928 * ADV_ERROR - command timed out
4929 */
4930 static int
4931 AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc,
4932 ushort idle_cmd, ADV_DCNT idle_cmd_parameter)
4933 {
4934 int result;
4935 ADV_DCNT i, j;
4936 AdvPortAddr iop_base;
4937
4938 iop_base = asc_dvc->iop_base;
4939
4940 /*
4941 * Clear the idle command status which is set by the microcode
4942 * to a non-zero value to indicate when the command is completed.
4943 * The non-zero result is one of the IDLE_CMD_STATUS_* values
4944 */
4945 AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0);
4946
4947 /*
4948 * Write the idle command value after the idle command parameter
4949 * has been written to avoid a race condition. If the order is not
4950 * followed, the microcode may process the idle command before the
4951 * parameters have been written to LRAM.
4952 */
4953 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER,
4954 cpu_to_le32(idle_cmd_parameter));
4955 AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd);
4956
4957 /*
4958 * Tickle the RISC to tell it to process the idle command.
4959 */
4960 AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B);
4961 if (asc_dvc->chip_type == ADV_CHIP_ASC3550) {
4962 /*
4963 * Clear the tickle value. In the ASC-3550 the RISC flag
4964 * command 'clr_tickle_b' does not work unless the host
4965 * value is cleared.
4966 */
4967 AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP);
4968 }
4969
4970 /* Wait for up to 100 millisecond for the idle command to timeout. */
4971 for (i = 0; i < SCSI_WAIT_100_MSEC; i++) {
4972 /* Poll once each microsecond for command completion. */
4973 for (j = 0; j < SCSI_US_PER_MSEC; j++) {
4974 AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS,
4975 result);
4976 if (result != 0)
4977 return result;
4978 udelay(1);
4979 }
4980 }
4981
4982 BUG(); /* The idle command should never timeout. */
4983 return ADV_ERROR;
4984 }
4985
4986 /*
4987 * Reset SCSI Bus and purge all outstanding requests.
4988 *
4989 * Return Value:
4990 * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset.
4991 * ADV_FALSE(0) - Microcode command failed.
4992 * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC
4993 * may be hung which requires driver recovery.
4994 */
4995 static int AdvResetSB(ADV_DVC_VAR *asc_dvc)
4996 {
4997 int status;
4998
4999 /*
5000 * Send the SCSI Bus Reset idle start idle command which asserts
5001 * the SCSI Bus Reset signal.
5002 */
5003 status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L);
5004 if (status != ADV_TRUE) {
5005 return status;
5006 }
5007
5008 /*
5009 * Delay for the specified SCSI Bus Reset hold time.
5010 *
5011 * The hold time delay is done on the host because the RISC has no
5012 * microsecond accurate timer.
5013 */
5014 udelay(ASC_SCSI_RESET_HOLD_TIME_US);
5015
5016 /*
5017 * Send the SCSI Bus Reset end idle command which de-asserts
5018 * the SCSI Bus Reset signal and purges any pending requests.
5019 */
5020 status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L);
5021 if (status != ADV_TRUE) {
5022 return status;
5023 }
5024
5025 mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */
5026
5027 return status;
5028 }
5029
5030 /*
5031 * Initialize the ASC-3550.
5032 *
5033 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR.
5034 *
5035 * For a non-fatal error return a warning code. If there are no warnings
5036 * then 0 is returned.
5037 *
5038 * Needed after initialization for error recovery.
5039 */
5040 static int AdvInitAsc3550Driver(ADV_DVC_VAR *asc_dvc)
5041 {
5042 const struct firmware *fw;
5043 const char fwname[] = "advansys/3550.bin";
5044 AdvPortAddr iop_base;
5045 ushort warn_code;
5046 int begin_addr;
5047 int end_addr;
5048 ushort code_sum;
5049 int word;
5050 int i;
5051 int err;
5052 unsigned long chksum;
5053 ushort scsi_cfg1;
5054 uchar tid;
5055 ushort bios_mem[ASC_MC_BIOSLEN / 2]; /* BIOS RISC Memory 0x40-0x8F. */
5056 ushort wdtr_able = 0, sdtr_able, tagqng_able;
5057 uchar max_cmd[ADV_MAX_TID + 1];
5058
5059 /* If there is already an error, don't continue. */
5060 if (asc_dvc->err_code != 0)
5061 return ADV_ERROR;
5062
5063 /*
5064 * The caller must set 'chip_type' to ADV_CHIP_ASC3550.
5065 */
5066 if (asc_dvc->chip_type != ADV_CHIP_ASC3550) {
5067 asc_dvc->err_code = ASC_IERR_BAD_CHIPTYPE;
5068 return ADV_ERROR;
5069 }
5070
5071 warn_code = 0;
5072 iop_base = asc_dvc->iop_base;
5073
5074 /*
5075 * Save the RISC memory BIOS region before writing the microcode.
5076 * The BIOS may already be loaded and using its RISC LRAM region
5077 * so its region must be saved and restored.
5078 *
5079 * Note: This code makes the assumption, which is currently true,
5080 * that a chip reset does not clear RISC LRAM.
5081 */
5082 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) {
5083 AdvReadWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i),
5084 bios_mem[i]);
5085 }
5086
5087 /*
5088 * Save current per TID negotiated values.
5089 */
5090 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] == 0x55AA) {
5091 ushort bios_version, major, minor;
5092
5093 bios_version =
5094 bios_mem[(ASC_MC_BIOS_VERSION - ASC_MC_BIOSMEM) / 2];
5095 major = (bios_version >> 12) & 0xF;
5096 minor = (bios_version >> 8) & 0xF;
5097 if (major < 3 || (major == 3 && minor == 1)) {
5098 /* BIOS 3.1 and earlier location of 'wdtr_able' variable. */
5099 AdvReadWordLram(iop_base, 0x120, wdtr_able);
5100 } else {
5101 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
5102 }
5103 }
5104 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
5105 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able);
5106 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
5107 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid,
5108 max_cmd[tid]);
5109 }
5110
5111 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev);
5112 if (err) {
5113 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
5114 fwname, err);
5115 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM;
5116 return err;
5117 }
5118 if (fw->size < 4) {
5119 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n",
5120 fw->size, fwname);
5121 release_firmware(fw);
5122 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM;
5123 return -EINVAL;
5124 }
5125 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) |
5126 (fw->data[1] << 8) | fw->data[0];
5127 asc_dvc->err_code = AdvLoadMicrocode(iop_base, &fw->data[4],
5128 fw->size - 4, ADV_3550_MEMSIZE,
5129 chksum);
5130 release_firmware(fw);
5131 if (asc_dvc->err_code)
5132 return ADV_ERROR;
5133
5134 /*
5135 * Restore the RISC memory BIOS region.
5136 */
5137 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) {
5138 AdvWriteWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i),
5139 bios_mem[i]);
5140 }
5141
5142 /*
5143 * Calculate and write the microcode code checksum to the microcode
5144 * code checksum location ASC_MC_CODE_CHK_SUM (0x2C).
5145 */
5146 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, begin_addr);
5147 AdvReadWordLram(iop_base, ASC_MC_CODE_END_ADDR, end_addr);
5148 code_sum = 0;
5149 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, begin_addr);
5150 for (word = begin_addr; word < end_addr; word += 2) {
5151 code_sum += AdvReadWordAutoIncLram(iop_base);
5152 }
5153 AdvWriteWordLram(iop_base, ASC_MC_CODE_CHK_SUM, code_sum);
5154
5155 /*
5156 * Read and save microcode version and date.
5157 */
5158 AdvReadWordLram(iop_base, ASC_MC_VERSION_DATE,
5159 asc_dvc->cfg->mcode_date);
5160 AdvReadWordLram(iop_base, ASC_MC_VERSION_NUM,
5161 asc_dvc->cfg->mcode_version);
5162
5163 /*
5164 * Set the chip type to indicate the ASC3550.
5165 */
5166 AdvWriteWordLram(iop_base, ASC_MC_CHIP_TYPE, ADV_CHIP_ASC3550);
5167
5168 /*
5169 * If the PCI Configuration Command Register "Parity Error Response
5170 * Control" Bit was clear (0), then set the microcode variable
5171 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode
5172 * to ignore DMA parity errors.
5173 */
5174 if (asc_dvc->cfg->control_flag & CONTROL_FLAG_IGNORE_PERR) {
5175 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
5176 word |= CONTROL_FLAG_IGNORE_PERR;
5177 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
5178 }
5179
5180 /*
5181 * For ASC-3550, setting the START_CTL_EMFU [3:2] bits sets a FIFO
5182 * threshold of 128 bytes. This register is only accessible to the host.
5183 */
5184 AdvWriteByteRegister(iop_base, IOPB_DMA_CFG0,
5185 START_CTL_EMFU | READ_CMD_MRM);
5186
5187 /*
5188 * Microcode operating variables for WDTR, SDTR, and command tag
5189 * queuing will be set in slave_configure() based on what a
5190 * device reports it is capable of in Inquiry byte 7.
5191 *
5192 * If SCSI Bus Resets have been disabled, then directly set
5193 * SDTR and WDTR from the EEPROM configuration. This will allow
5194 * the BIOS and warm boot to work without a SCSI bus hang on
5195 * the Inquiry caused by host and target mismatched DTR values.
5196 * Without the SCSI Bus Reset, before an Inquiry a device can't
5197 * be assumed to be in Asynchronous, Narrow mode.
5198 */
5199 if ((asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) == 0) {
5200 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE,
5201 asc_dvc->wdtr_able);
5202 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE,
5203 asc_dvc->sdtr_able);
5204 }
5205
5206 /*
5207 * Set microcode operating variables for SDTR_SPEED1, SDTR_SPEED2,
5208 * SDTR_SPEED3, and SDTR_SPEED4 based on the ULTRA EEPROM per TID
5209 * bitmask. These values determine the maximum SDTR speed negotiated
5210 * with a device.
5211 *
5212 * The SDTR per TID bitmask overrides the SDTR_SPEED1, SDTR_SPEED2,
5213 * SDTR_SPEED3, and SDTR_SPEED4 values so it is safe to set them
5214 * without determining here whether the device supports SDTR.
5215 *
5216 * 4-bit speed SDTR speed name
5217 * =========== ===============
5218 * 0000b (0x0) SDTR disabled
5219 * 0001b (0x1) 5 Mhz
5220 * 0010b (0x2) 10 Mhz
5221 * 0011b (0x3) 20 Mhz (Ultra)
5222 * 0100b (0x4) 40 Mhz (LVD/Ultra2)
5223 * 0101b (0x5) 80 Mhz (LVD2/Ultra3)
5224 * 0110b (0x6) Undefined
5225 * .
5226 * 1111b (0xF) Undefined
5227 */
5228 word = 0;
5229 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
5230 if (ADV_TID_TO_TIDMASK(tid) & asc_dvc->ultra_able) {
5231 /* Set Ultra speed for TID 'tid'. */
5232 word |= (0x3 << (4 * (tid % 4)));
5233 } else {
5234 /* Set Fast speed for TID 'tid'. */
5235 word |= (0x2 << (4 * (tid % 4)));
5236 }
5237 if (tid == 3) { /* Check if done with sdtr_speed1. */
5238 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED1, word);
5239 word = 0;
5240 } else if (tid == 7) { /* Check if done with sdtr_speed2. */
5241 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED2, word);
5242 word = 0;
5243 } else if (tid == 11) { /* Check if done with sdtr_speed3. */
5244 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED3, word);
5245 word = 0;
5246 } else if (tid == 15) { /* Check if done with sdtr_speed4. */
5247 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED4, word);
5248 /* End of loop. */
5249 }
5250 }
5251
5252 /*
5253 * Set microcode operating variable for the disconnect per TID bitmask.
5254 */
5255 AdvWriteWordLram(iop_base, ASC_MC_DISC_ENABLE,
5256 asc_dvc->cfg->disc_enable);
5257
5258 /*
5259 * Set SCSI_CFG0 Microcode Default Value.
5260 *
5261 * The microcode will set the SCSI_CFG0 register using this value
5262 * after it is started below.
5263 */
5264 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG0,
5265 PARITY_EN | QUEUE_128 | SEL_TMO_LONG | OUR_ID_EN |
5266 asc_dvc->chip_scsi_id);
5267
5268 /*
5269 * Determine SCSI_CFG1 Microcode Default Value.
5270 *
5271 * The microcode will set the SCSI_CFG1 register using this value
5272 * after it is started below.
5273 */
5274
5275 /* Read current SCSI_CFG1 Register value. */
5276 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1);
5277
5278 /*
5279 * If all three connectors are in use, return an error.
5280 */
5281 if ((scsi_cfg1 & CABLE_ILLEGAL_A) == 0 ||
5282 (scsi_cfg1 & CABLE_ILLEGAL_B) == 0) {
5283 asc_dvc->err_code |= ASC_IERR_ILLEGAL_CONNECTION;
5284 return ADV_ERROR;
5285 }
5286
5287 /*
5288 * If the internal narrow cable is reversed all of the SCSI_CTRL
5289 * register signals will be set. Check for and return an error if
5290 * this condition is found.
5291 */
5292 if ((AdvReadWordRegister(iop_base, IOPW_SCSI_CTRL) & 0x3F07) == 0x3F07) {
5293 asc_dvc->err_code |= ASC_IERR_REVERSED_CABLE;
5294 return ADV_ERROR;
5295 }
5296
5297 /*
5298 * If this is a differential board and a single-ended device
5299 * is attached to one of the connectors, return an error.
5300 */
5301 if ((scsi_cfg1 & DIFF_MODE) && (scsi_cfg1 & DIFF_SENSE) == 0) {
5302 asc_dvc->err_code |= ASC_IERR_SINGLE_END_DEVICE;
5303 return ADV_ERROR;
5304 }
5305
5306 /*
5307 * If automatic termination control is enabled, then set the
5308 * termination value based on a table listed in a_condor.h.
5309 *
5310 * If manual termination was specified with an EEPROM setting
5311 * then 'termination' was set-up in AdvInitFrom3550EEPROM() and
5312 * is ready to be 'ored' into SCSI_CFG1.
5313 */
5314 if (asc_dvc->cfg->termination == 0) {
5315 /*
5316 * The software always controls termination by setting TERM_CTL_SEL.
5317 * If TERM_CTL_SEL were set to 0, the hardware would set termination.
5318 */
5319 asc_dvc->cfg->termination |= TERM_CTL_SEL;
5320
5321 switch (scsi_cfg1 & CABLE_DETECT) {
5322 /* TERM_CTL_H: on, TERM_CTL_L: on */
5323 case 0x3:
5324 case 0x7:
5325 case 0xB:
5326 case 0xD:
5327 case 0xE:
5328 case 0xF:
5329 asc_dvc->cfg->termination |= (TERM_CTL_H | TERM_CTL_L);
5330 break;
5331
5332 /* TERM_CTL_H: on, TERM_CTL_L: off */
5333 case 0x1:
5334 case 0x5:
5335 case 0x9:
5336 case 0xA:
5337 case 0xC:
5338 asc_dvc->cfg->termination |= TERM_CTL_H;
5339 break;
5340
5341 /* TERM_CTL_H: off, TERM_CTL_L: off */
5342 case 0x2:
5343 case 0x6:
5344 break;
5345 }
5346 }
5347
5348 /*
5349 * Clear any set TERM_CTL_H and TERM_CTL_L bits.
5350 */
5351 scsi_cfg1 &= ~TERM_CTL;
5352
5353 /*
5354 * Invert the TERM_CTL_H and TERM_CTL_L bits and then
5355 * set 'scsi_cfg1'. The TERM_POL bit does not need to be
5356 * referenced, because the hardware internally inverts
5357 * the Termination High and Low bits if TERM_POL is set.
5358 */
5359 scsi_cfg1 |= (TERM_CTL_SEL | (~asc_dvc->cfg->termination & TERM_CTL));
5360
5361 /*
5362 * Set SCSI_CFG1 Microcode Default Value
5363 *
5364 * Set filter value and possibly modified termination control
5365 * bits in the Microcode SCSI_CFG1 Register Value.
5366 *
5367 * The microcode will set the SCSI_CFG1 register using this value
5368 * after it is started below.
5369 */
5370 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG1,
5371 FLTR_DISABLE | scsi_cfg1);
5372
5373 /*
5374 * Set MEM_CFG Microcode Default Value
5375 *
5376 * The microcode will set the MEM_CFG register using this value
5377 * after it is started below.
5378 *
5379 * MEM_CFG may be accessed as a word or byte, but only bits 0-7
5380 * are defined.
5381 *
5382 * ASC-3550 has 8KB internal memory.
5383 */
5384 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG,
5385 BIOS_EN | RAM_SZ_8KB);
5386
5387 /*
5388 * Set SEL_MASK Microcode Default Value
5389 *
5390 * The microcode will set the SEL_MASK register using this value
5391 * after it is started below.
5392 */
5393 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK,
5394 ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id));
5395
5396 AdvBuildCarrierFreelist(asc_dvc);
5397
5398 /*
5399 * Set-up the Host->RISC Initiator Command Queue (ICQ).
5400 */
5401
5402 if ((asc_dvc->icq_sp = asc_dvc->carr_freelist) == NULL) {
5403 asc_dvc->err_code |= ASC_IERR_NO_CARRIER;
5404 return ADV_ERROR;
5405 }
5406 asc_dvc->carr_freelist = (ADV_CARR_T *)
5407 ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->icq_sp->next_vpa));
5408
5409 /*
5410 * The first command issued will be placed in the stopper carrier.
5411 */
5412 asc_dvc->icq_sp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER);
5413
5414 /*
5415 * Set RISC ICQ physical address start value.
5416 */
5417 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_ICQ, asc_dvc->icq_sp->carr_pa);
5418
5419 /*
5420 * Set-up the RISC->Host Initiator Response Queue (IRQ).
5421 */
5422 if ((asc_dvc->irq_sp = asc_dvc->carr_freelist) == NULL) {
5423 asc_dvc->err_code |= ASC_IERR_NO_CARRIER;
5424 return ADV_ERROR;
5425 }
5426 asc_dvc->carr_freelist = (ADV_CARR_T *)
5427 ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->next_vpa));
5428
5429 /*
5430 * The first command completed by the RISC will be placed in
5431 * the stopper.
5432 *
5433 * Note: Set 'next_vpa' to ASC_CQ_STOPPER. When the request is
5434 * completed the RISC will set the ASC_RQ_STOPPER bit.
5435 */
5436 asc_dvc->irq_sp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER);
5437
5438 /*
5439 * Set RISC IRQ physical address start value.
5440 */
5441 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IRQ, asc_dvc->irq_sp->carr_pa);
5442 asc_dvc->carr_pending_cnt = 0;
5443
5444 AdvWriteByteRegister(iop_base, IOPB_INTR_ENABLES,
5445 (ADV_INTR_ENABLE_HOST_INTR |
5446 ADV_INTR_ENABLE_GLOBAL_INTR));
5447
5448 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, word);
5449 AdvWriteWordRegister(iop_base, IOPW_PC, word);
5450
5451 /* finally, finally, gentlemen, start your engine */
5452 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_RUN);
5453
5454 /*
5455 * Reset the SCSI Bus if the EEPROM indicates that SCSI Bus
5456 * Resets should be performed. The RISC has to be running
5457 * to issue a SCSI Bus Reset.
5458 */
5459 if (asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) {
5460 /*
5461 * If the BIOS Signature is present in memory, restore the
5462 * BIOS Handshake Configuration Table and do not perform
5463 * a SCSI Bus Reset.
5464 */
5465 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] ==
5466 0x55AA) {
5467 /*
5468 * Restore per TID negotiated values.
5469 */
5470 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
5471 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
5472 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE,
5473 tagqng_able);
5474 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
5475 AdvWriteByteLram(iop_base,
5476 ASC_MC_NUMBER_OF_MAX_CMD + tid,
5477 max_cmd[tid]);
5478 }
5479 } else {
5480 if (AdvResetSB(asc_dvc) != ADV_TRUE) {
5481 warn_code = ASC_WARN_BUSRESET_ERROR;
5482 }
5483 }
5484 }
5485
5486 return warn_code;
5487 }
5488
5489 /*
5490 * Initialize the ASC-38C0800.
5491 *
5492 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR.
5493 *
5494 * For a non-fatal error return a warning code. If there are no warnings
5495 * then 0 is returned.
5496 *
5497 * Needed after initialization for error recovery.
5498 */
5499 static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc)
5500 {
5501 const struct firmware *fw;
5502 const char fwname[] = "advansys/38C0800.bin";
5503 AdvPortAddr iop_base;
5504 ushort warn_code;
5505 int begin_addr;
5506 int end_addr;
5507 ushort code_sum;
5508 int word;
5509 int i;
5510 int err;
5511 unsigned long chksum;
5512 ushort scsi_cfg1;
5513 uchar byte;
5514 uchar tid;
5515 ushort bios_mem[ASC_MC_BIOSLEN / 2]; /* BIOS RISC Memory 0x40-0x8F. */
5516 ushort wdtr_able, sdtr_able, tagqng_able;
5517 uchar max_cmd[ADV_MAX_TID + 1];
5518
5519 /* If there is already an error, don't continue. */
5520 if (asc_dvc->err_code != 0)
5521 return ADV_ERROR;
5522
5523 /*
5524 * The caller must set 'chip_type' to ADV_CHIP_ASC38C0800.
5525 */
5526 if (asc_dvc->chip_type != ADV_CHIP_ASC38C0800) {
5527 asc_dvc->err_code = ASC_IERR_BAD_CHIPTYPE;
5528 return ADV_ERROR;
5529 }
5530
5531 warn_code = 0;
5532 iop_base = asc_dvc->iop_base;
5533
5534 /*
5535 * Save the RISC memory BIOS region before writing the microcode.
5536 * The BIOS may already be loaded and using its RISC LRAM region
5537 * so its region must be saved and restored.
5538 *
5539 * Note: This code makes the assumption, which is currently true,
5540 * that a chip reset does not clear RISC LRAM.
5541 */
5542 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) {
5543 AdvReadWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i),
5544 bios_mem[i]);
5545 }
5546
5547 /*
5548 * Save current per TID negotiated values.
5549 */
5550 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
5551 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
5552 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able);
5553 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
5554 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid,
5555 max_cmd[tid]);
5556 }
5557
5558 /*
5559 * RAM BIST (RAM Built-In Self Test)
5560 *
5561 * Address : I/O base + offset 0x38h register (byte).
5562 * Function: Bit 7-6(RW) : RAM mode
5563 * Normal Mode : 0x00
5564 * Pre-test Mode : 0x40
5565 * RAM Test Mode : 0x80
5566 * Bit 5 : unused
5567 * Bit 4(RO) : Done bit
5568 * Bit 3-0(RO) : Status
5569 * Host Error : 0x08
5570 * Int_RAM Error : 0x04
5571 * RISC Error : 0x02
5572 * SCSI Error : 0x01
5573 * No Error : 0x00
5574 *
5575 * Note: RAM BIST code should be put right here, before loading the
5576 * microcode and after saving the RISC memory BIOS region.
5577 */
5578
5579 /*
5580 * LRAM Pre-test
5581 *
5582 * Write PRE_TEST_MODE (0x40) to register and wait for 10 milliseconds.
5583 * If Done bit not set or low nibble not PRE_TEST_VALUE (0x05), return
5584 * an error. Reset to NORMAL_MODE (0x00) and do again. If cannot reset
5585 * to NORMAL_MODE, return an error too.
5586 */
5587 for (i = 0; i < 2; i++) {
5588 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, PRE_TEST_MODE);
5589 mdelay(10); /* Wait for 10ms before reading back. */
5590 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
5591 if ((byte & RAM_TEST_DONE) == 0
5592 || (byte & 0x0F) != PRE_TEST_VALUE) {
5593 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST;
5594 return ADV_ERROR;
5595 }
5596
5597 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE);
5598 mdelay(10); /* Wait for 10ms before reading back. */
5599 if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST)
5600 != NORMAL_VALUE) {
5601 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST;
5602 return ADV_ERROR;
5603 }
5604 }
5605
5606 /*
5607 * LRAM Test - It takes about 1.5 ms to run through the test.
5608 *
5609 * Write RAM_TEST_MODE (0x80) to register and wait for 10 milliseconds.
5610 * If Done bit not set or Status not 0, save register byte, set the
5611 * err_code, and return an error.
5612 */
5613 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, RAM_TEST_MODE);
5614 mdelay(10); /* Wait for 10ms before checking status. */
5615
5616 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
5617 if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) {
5618 /* Get here if Done bit not set or Status not 0. */
5619 asc_dvc->bist_err_code = byte; /* for BIOS display message */
5620 asc_dvc->err_code = ASC_IERR_BIST_RAM_TEST;
5621 return ADV_ERROR;
5622 }
5623
5624 /* We need to reset back to normal mode after LRAM test passes. */
5625 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE);
5626
5627 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev);
5628 if (err) {
5629 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
5630 fwname, err);
5631 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM;
5632 return err;
5633 }
5634 if (fw->size < 4) {
5635 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n",
5636 fw->size, fwname);
5637 release_firmware(fw);
5638 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM;
5639 return -EINVAL;
5640 }
5641 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) |
5642 (fw->data[1] << 8) | fw->data[0];
5643 asc_dvc->err_code = AdvLoadMicrocode(iop_base, &fw->data[4],
5644 fw->size - 4, ADV_38C0800_MEMSIZE,
5645 chksum);
5646 release_firmware(fw);
5647 if (asc_dvc->err_code)
5648 return ADV_ERROR;
5649
5650 /*
5651 * Restore the RISC memory BIOS region.
5652 */
5653 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) {
5654 AdvWriteWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i),
5655 bios_mem[i]);
5656 }
5657
5658 /*
5659 * Calculate and write the microcode code checksum to the microcode
5660 * code checksum location ASC_MC_CODE_CHK_SUM (0x2C).
5661 */
5662 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, begin_addr);
5663 AdvReadWordLram(iop_base, ASC_MC_CODE_END_ADDR, end_addr);
5664 code_sum = 0;
5665 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, begin_addr);
5666 for (word = begin_addr; word < end_addr; word += 2) {
5667 code_sum += AdvReadWordAutoIncLram(iop_base);
5668 }
5669 AdvWriteWordLram(iop_base, ASC_MC_CODE_CHK_SUM, code_sum);
5670
5671 /*
5672 * Read microcode version and date.
5673 */
5674 AdvReadWordLram(iop_base, ASC_MC_VERSION_DATE,
5675 asc_dvc->cfg->mcode_date);
5676 AdvReadWordLram(iop_base, ASC_MC_VERSION_NUM,
5677 asc_dvc->cfg->mcode_version);
5678
5679 /*
5680 * Set the chip type to indicate the ASC38C0800.
5681 */
5682 AdvWriteWordLram(iop_base, ASC_MC_CHIP_TYPE, ADV_CHIP_ASC38C0800);
5683
5684 /*
5685 * Write 1 to bit 14 'DIS_TERM_DRV' in the SCSI_CFG1 register.
5686 * When DIS_TERM_DRV set to 1, C_DET[3:0] will reflect current
5687 * cable detection and then we are able to read C_DET[3:0].
5688 *
5689 * Note: We will reset DIS_TERM_DRV to 0 in the 'Set SCSI_CFG1
5690 * Microcode Default Value' section below.
5691 */
5692 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1);
5693 AdvWriteWordRegister(iop_base, IOPW_SCSI_CFG1,
5694 scsi_cfg1 | DIS_TERM_DRV);
5695
5696 /*
5697 * If the PCI Configuration Command Register "Parity Error Response
5698 * Control" Bit was clear (0), then set the microcode variable
5699 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode
5700 * to ignore DMA parity errors.
5701 */
5702 if (asc_dvc->cfg->control_flag & CONTROL_FLAG_IGNORE_PERR) {
5703 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
5704 word |= CONTROL_FLAG_IGNORE_PERR;
5705 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
5706 }
5707
5708 /*
5709 * For ASC-38C0800, set FIFO_THRESH_80B [6:4] bits and START_CTL_TH [3:2]
5710 * bits for the default FIFO threshold.
5711 *
5712 * Note: ASC-38C0800 FIFO threshold has been changed to 256 bytes.
5713 *
5714 * For DMA Errata #4 set the BC_THRESH_ENB bit.
5715 */
5716 AdvWriteByteRegister(iop_base, IOPB_DMA_CFG0,
5717 BC_THRESH_ENB | FIFO_THRESH_80B | START_CTL_TH |
5718 READ_CMD_MRM);
5719
5720 /*
5721 * Microcode operating variables for WDTR, SDTR, and command tag
5722 * queuing will be set in slave_configure() based on what a
5723 * device reports it is capable of in Inquiry byte 7.
5724 *
5725 * If SCSI Bus Resets have been disabled, then directly set
5726 * SDTR and WDTR from the EEPROM configuration. This will allow
5727 * the BIOS and warm boot to work without a SCSI bus hang on
5728 * the Inquiry caused by host and target mismatched DTR values.
5729 * Without the SCSI Bus Reset, before an Inquiry a device can't
5730 * be assumed to be in Asynchronous, Narrow mode.
5731 */
5732 if ((asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) == 0) {
5733 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE,
5734 asc_dvc->wdtr_able);
5735 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE,
5736 asc_dvc->sdtr_able);
5737 }
5738
5739 /*
5740 * Set microcode operating variables for DISC and SDTR_SPEED1,
5741 * SDTR_SPEED2, SDTR_SPEED3, and SDTR_SPEED4 based on the EEPROM
5742 * configuration values.
5743 *
5744 * The SDTR per TID bitmask overrides the SDTR_SPEED1, SDTR_SPEED2,
5745 * SDTR_SPEED3, and SDTR_SPEED4 values so it is safe to set them
5746 * without determining here whether the device supports SDTR.
5747 */
5748 AdvWriteWordLram(iop_base, ASC_MC_DISC_ENABLE,
5749 asc_dvc->cfg->disc_enable);
5750 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED1, asc_dvc->sdtr_speed1);
5751 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED2, asc_dvc->sdtr_speed2);
5752 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED3, asc_dvc->sdtr_speed3);
5753 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED4, asc_dvc->sdtr_speed4);
5754
5755 /*
5756 * Set SCSI_CFG0 Microcode Default Value.
5757 *
5758 * The microcode will set the SCSI_CFG0 register using this value
5759 * after it is started below.
5760 */
5761 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG0,
5762 PARITY_EN | QUEUE_128 | SEL_TMO_LONG | OUR_ID_EN |
5763 asc_dvc->chip_scsi_id);
5764
5765 /*
5766 * Determine SCSI_CFG1 Microcode Default Value.
5767 *
5768 * The microcode will set the SCSI_CFG1 register using this value
5769 * after it is started below.
5770 */
5771
5772 /* Read current SCSI_CFG1 Register value. */
5773 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1);
5774
5775 /*
5776 * If the internal narrow cable is reversed all of the SCSI_CTRL
5777 * register signals will be set. Check for and return an error if
5778 * this condition is found.
5779 */
5780 if ((AdvReadWordRegister(iop_base, IOPW_SCSI_CTRL) & 0x3F07) == 0x3F07) {
5781 asc_dvc->err_code |= ASC_IERR_REVERSED_CABLE;
5782 return ADV_ERROR;
5783 }
5784
5785 /*
5786 * All kind of combinations of devices attached to one of four
5787 * connectors are acceptable except HVD device attached. For example,
5788 * LVD device can be attached to SE connector while SE device attached
5789 * to LVD connector. If LVD device attached to SE connector, it only
5790 * runs up to Ultra speed.
5791 *
5792 * If an HVD device is attached to one of LVD connectors, return an
5793 * error. However, there is no way to detect HVD device attached to
5794 * SE connectors.
5795 */
5796 if (scsi_cfg1 & HVD) {
5797 asc_dvc->err_code = ASC_IERR_HVD_DEVICE;
5798 return ADV_ERROR;
5799 }
5800
5801 /*
5802 * If either SE or LVD automatic termination control is enabled, then
5803 * set the termination value based on a table listed in a_condor.h.
5804 *
5805 * If manual termination was specified with an EEPROM setting then
5806 * 'termination' was set-up in AdvInitFrom38C0800EEPROM() and is ready
5807 * to be 'ored' into SCSI_CFG1.
5808 */
5809 if ((asc_dvc->cfg->termination & TERM_SE) == 0) {
5810 /* SE automatic termination control is enabled. */
5811 switch (scsi_cfg1 & C_DET_SE) {
5812 /* TERM_SE_HI: on, TERM_SE_LO: on */
5813 case 0x1:
5814 case 0x2:
5815 case 0x3:
5816 asc_dvc->cfg->termination |= TERM_SE;
5817 break;
5818
5819 /* TERM_SE_HI: on, TERM_SE_LO: off */
5820 case 0x0:
5821 asc_dvc->cfg->termination |= TERM_SE_HI;
5822 break;
5823 }
5824 }
5825
5826 if ((asc_dvc->cfg->termination & TERM_LVD) == 0) {
5827 /* LVD automatic termination control is enabled. */
5828 switch (scsi_cfg1 & C_DET_LVD) {
5829 /* TERM_LVD_HI: on, TERM_LVD_LO: on */
5830 case 0x4:
5831 case 0x8:
5832 case 0xC:
5833 asc_dvc->cfg->termination |= TERM_LVD;
5834 break;
5835
5836 /* TERM_LVD_HI: off, TERM_LVD_LO: off */
5837 case 0x0:
5838 break;
5839 }
5840 }
5841
5842 /*
5843 * Clear any set TERM_SE and TERM_LVD bits.
5844 */
5845 scsi_cfg1 &= (~TERM_SE & ~TERM_LVD);
5846
5847 /*
5848 * Invert the TERM_SE and TERM_LVD bits and then set 'scsi_cfg1'.
5849 */
5850 scsi_cfg1 |= (~asc_dvc->cfg->termination & 0xF0);
5851
5852 /*
5853 * Clear BIG_ENDIAN, DIS_TERM_DRV, Terminator Polarity and HVD/LVD/SE
5854 * bits and set possibly modified termination control bits in the
5855 * Microcode SCSI_CFG1 Register Value.
5856 */
5857 scsi_cfg1 &= (~BIG_ENDIAN & ~DIS_TERM_DRV & ~TERM_POL & ~HVD_LVD_SE);
5858
5859 /*
5860 * Set SCSI_CFG1 Microcode Default Value
5861 *
5862 * Set possibly modified termination control and reset DIS_TERM_DRV
5863 * bits in the Microcode SCSI_CFG1 Register Value.
5864 *
5865 * The microcode will set the SCSI_CFG1 register using this value
5866 * after it is started below.
5867 */
5868 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG1, scsi_cfg1);
5869
5870 /*
5871 * Set MEM_CFG Microcode Default Value
5872 *
5873 * The microcode will set the MEM_CFG register using this value
5874 * after it is started below.
5875 *
5876 * MEM_CFG may be accessed as a word or byte, but only bits 0-7
5877 * are defined.
5878 *
5879 * ASC-38C0800 has 16KB internal memory.
5880 */
5881 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG,
5882 BIOS_EN | RAM_SZ_16KB);
5883
5884 /*
5885 * Set SEL_MASK Microcode Default Value
5886 *
5887 * The microcode will set the SEL_MASK register using this value
5888 * after it is started below.
5889 */
5890 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK,
5891 ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id));
5892
5893 AdvBuildCarrierFreelist(asc_dvc);
5894
5895 /*
5896 * Set-up the Host->RISC Initiator Command Queue (ICQ).
5897 */
5898
5899 if ((asc_dvc->icq_sp = asc_dvc->carr_freelist) == NULL) {
5900 asc_dvc->err_code |= ASC_IERR_NO_CARRIER;
5901 return ADV_ERROR;
5902 }
5903 asc_dvc->carr_freelist = (ADV_CARR_T *)
5904 ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->icq_sp->next_vpa));
5905
5906 /*
5907 * The first command issued will be placed in the stopper carrier.
5908 */
5909 asc_dvc->icq_sp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER);
5910
5911 /*
5912 * Set RISC ICQ physical address start value.
5913 * carr_pa is LE, must be native before write
5914 */
5915 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_ICQ, asc_dvc->icq_sp->carr_pa);
5916
5917 /*
5918 * Set-up the RISC->Host Initiator Response Queue (IRQ).
5919 */
5920 if ((asc_dvc->irq_sp = asc_dvc->carr_freelist) == NULL) {
5921 asc_dvc->err_code |= ASC_IERR_NO_CARRIER;
5922 return ADV_ERROR;
5923 }
5924 asc_dvc->carr_freelist = (ADV_CARR_T *)
5925 ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->next_vpa));
5926
5927 /*
5928 * The first command completed by the RISC will be placed in
5929 * the stopper.
5930 *
5931 * Note: Set 'next_vpa' to ASC_CQ_STOPPER. When the request is
5932 * completed the RISC will set the ASC_RQ_STOPPER bit.
5933 */
5934 asc_dvc->irq_sp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER);
5935
5936 /*
5937 * Set RISC IRQ physical address start value.
5938 *
5939 * carr_pa is LE, must be native before write *
5940 */
5941 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IRQ, asc_dvc->irq_sp->carr_pa);
5942 asc_dvc->carr_pending_cnt = 0;
5943
5944 AdvWriteByteRegister(iop_base, IOPB_INTR_ENABLES,
5945 (ADV_INTR_ENABLE_HOST_INTR |
5946 ADV_INTR_ENABLE_GLOBAL_INTR));
5947
5948 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, word);
5949 AdvWriteWordRegister(iop_base, IOPW_PC, word);
5950
5951 /* finally, finally, gentlemen, start your engine */
5952 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_RUN);
5953
5954 /*
5955 * Reset the SCSI Bus if the EEPROM indicates that SCSI Bus
5956 * Resets should be performed. The RISC has to be running
5957 * to issue a SCSI Bus Reset.
5958 */
5959 if (asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) {
5960 /*
5961 * If the BIOS Signature is present in memory, restore the
5962 * BIOS Handshake Configuration Table and do not perform
5963 * a SCSI Bus Reset.
5964 */
5965 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] ==
5966 0x55AA) {
5967 /*
5968 * Restore per TID negotiated values.
5969 */
5970 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
5971 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
5972 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE,
5973 tagqng_able);
5974 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
5975 AdvWriteByteLram(iop_base,
5976 ASC_MC_NUMBER_OF_MAX_CMD + tid,
5977 max_cmd[tid]);
5978 }
5979 } else {
5980 if (AdvResetSB(asc_dvc) != ADV_TRUE) {
5981 warn_code = ASC_WARN_BUSRESET_ERROR;
5982 }
5983 }
5984 }
5985
5986 return warn_code;
5987 }
5988
5989 /*
5990 * Initialize the ASC-38C1600.
5991 *
5992 * On failure set the ASC_DVC_VAR field 'err_code' and return ADV_ERROR.
5993 *
5994 * For a non-fatal error return a warning code. If there are no warnings
5995 * then 0 is returned.
5996 *
5997 * Needed after initialization for error recovery.
5998 */
5999 static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc)
6000 {
6001 const struct firmware *fw;
6002 const char fwname[] = "advansys/38C1600.bin";
6003 AdvPortAddr iop_base;
6004 ushort warn_code;
6005 int begin_addr;
6006 int end_addr;
6007 ushort code_sum;
6008 long word;
6009 int i;
6010 int err;
6011 unsigned long chksum;
6012 ushort scsi_cfg1;
6013 uchar byte;
6014 uchar tid;
6015 ushort bios_mem[ASC_MC_BIOSLEN / 2]; /* BIOS RISC Memory 0x40-0x8F. */
6016 ushort wdtr_able, sdtr_able, ppr_able, tagqng_able;
6017 uchar max_cmd[ASC_MAX_TID + 1];
6018
6019 /* If there is already an error, don't continue. */
6020 if (asc_dvc->err_code != 0) {
6021 return ADV_ERROR;
6022 }
6023
6024 /*
6025 * The caller must set 'chip_type' to ADV_CHIP_ASC38C1600.
6026 */
6027 if (asc_dvc->chip_type != ADV_CHIP_ASC38C1600) {
6028 asc_dvc->err_code = ASC_IERR_BAD_CHIPTYPE;
6029 return ADV_ERROR;
6030 }
6031
6032 warn_code = 0;
6033 iop_base = asc_dvc->iop_base;
6034
6035 /*
6036 * Save the RISC memory BIOS region before writing the microcode.
6037 * The BIOS may already be loaded and using its RISC LRAM region
6038 * so its region must be saved and restored.
6039 *
6040 * Note: This code makes the assumption, which is currently true,
6041 * that a chip reset does not clear RISC LRAM.
6042 */
6043 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) {
6044 AdvReadWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i),
6045 bios_mem[i]);
6046 }
6047
6048 /*
6049 * Save current per TID negotiated values.
6050 */
6051 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
6052 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
6053 AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able);
6054 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able);
6055 for (tid = 0; tid <= ASC_MAX_TID; tid++) {
6056 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid,
6057 max_cmd[tid]);
6058 }
6059
6060 /*
6061 * RAM BIST (Built-In Self Test)
6062 *
6063 * Address : I/O base + offset 0x38h register (byte).
6064 * Function: Bit 7-6(RW) : RAM mode
6065 * Normal Mode : 0x00
6066 * Pre-test Mode : 0x40
6067 * RAM Test Mode : 0x80
6068 * Bit 5 : unused
6069 * Bit 4(RO) : Done bit
6070 * Bit 3-0(RO) : Status
6071 * Host Error : 0x08
6072 * Int_RAM Error : 0x04
6073 * RISC Error : 0x02
6074 * SCSI Error : 0x01
6075 * No Error : 0x00
6076 *
6077 * Note: RAM BIST code should be put right here, before loading the
6078 * microcode and after saving the RISC memory BIOS region.
6079 */
6080
6081 /*
6082 * LRAM Pre-test
6083 *
6084 * Write PRE_TEST_MODE (0x40) to register and wait for 10 milliseconds.
6085 * If Done bit not set or low nibble not PRE_TEST_VALUE (0x05), return
6086 * an error. Reset to NORMAL_MODE (0x00) and do again. If cannot reset
6087 * to NORMAL_MODE, return an error too.
6088 */
6089 for (i = 0; i < 2; i++) {
6090 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, PRE_TEST_MODE);
6091 mdelay(10); /* Wait for 10ms before reading back. */
6092 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
6093 if ((byte & RAM_TEST_DONE) == 0
6094 || (byte & 0x0F) != PRE_TEST_VALUE) {
6095 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST;
6096 return ADV_ERROR;
6097 }
6098
6099 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE);
6100 mdelay(10); /* Wait for 10ms before reading back. */
6101 if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST)
6102 != NORMAL_VALUE) {
6103 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST;
6104 return ADV_ERROR;
6105 }
6106 }
6107
6108 /*
6109 * LRAM Test - It takes about 1.5 ms to run through the test.
6110 *
6111 * Write RAM_TEST_MODE (0x80) to register and wait for 10 milliseconds.
6112 * If Done bit not set or Status not 0, save register byte, set the
6113 * err_code, and return an error.
6114 */
6115 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, RAM_TEST_MODE);
6116 mdelay(10); /* Wait for 10ms before checking status. */
6117
6118 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST);
6119 if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) {
6120 /* Get here if Done bit not set or Status not 0. */
6121 asc_dvc->bist_err_code = byte; /* for BIOS display message */
6122 asc_dvc->err_code = ASC_IERR_BIST_RAM_TEST;
6123 return ADV_ERROR;
6124 }
6125
6126 /* We need to reset back to normal mode after LRAM test passes. */
6127 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE);
6128
6129 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev);
6130 if (err) {
6131 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
6132 fwname, err);
6133 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM;
6134 return err;
6135 }
6136 if (fw->size < 4) {
6137 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n",
6138 fw->size, fwname);
6139 release_firmware(fw);
6140 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM;
6141 return -EINVAL;
6142 }
6143 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) |
6144 (fw->data[1] << 8) | fw->data[0];
6145 asc_dvc->err_code = AdvLoadMicrocode(iop_base, &fw->data[4],
6146 fw->size - 4, ADV_38C1600_MEMSIZE,
6147 chksum);
6148 release_firmware(fw);
6149 if (asc_dvc->err_code)
6150 return ADV_ERROR;
6151
6152 /*
6153 * Restore the RISC memory BIOS region.
6154 */
6155 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) {
6156 AdvWriteWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i),
6157 bios_mem[i]);
6158 }
6159
6160 /*
6161 * Calculate and write the microcode code checksum to the microcode
6162 * code checksum location ASC_MC_CODE_CHK_SUM (0x2C).
6163 */
6164 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, begin_addr);
6165 AdvReadWordLram(iop_base, ASC_MC_CODE_END_ADDR, end_addr);
6166 code_sum = 0;
6167 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, begin_addr);
6168 for (word = begin_addr; word < end_addr; word += 2) {
6169 code_sum += AdvReadWordAutoIncLram(iop_base);
6170 }
6171 AdvWriteWordLram(iop_base, ASC_MC_CODE_CHK_SUM, code_sum);
6172
6173 /*
6174 * Read microcode version and date.
6175 */
6176 AdvReadWordLram(iop_base, ASC_MC_VERSION_DATE,
6177 asc_dvc->cfg->mcode_date);
6178 AdvReadWordLram(iop_base, ASC_MC_VERSION_NUM,
6179 asc_dvc->cfg->mcode_version);
6180
6181 /*
6182 * Set the chip type to indicate the ASC38C1600.
6183 */
6184 AdvWriteWordLram(iop_base, ASC_MC_CHIP_TYPE, ADV_CHIP_ASC38C1600);
6185
6186 /*
6187 * Write 1 to bit 14 'DIS_TERM_DRV' in the SCSI_CFG1 register.
6188 * When DIS_TERM_DRV set to 1, C_DET[3:0] will reflect current
6189 * cable detection and then we are able to read C_DET[3:0].
6190 *
6191 * Note: We will reset DIS_TERM_DRV to 0 in the 'Set SCSI_CFG1
6192 * Microcode Default Value' section below.
6193 */
6194 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1);
6195 AdvWriteWordRegister(iop_base, IOPW_SCSI_CFG1,
6196 scsi_cfg1 | DIS_TERM_DRV);
6197
6198 /*
6199 * If the PCI Configuration Command Register "Parity Error Response
6200 * Control" Bit was clear (0), then set the microcode variable
6201 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode
6202 * to ignore DMA parity errors.
6203 */
6204 if (asc_dvc->cfg->control_flag & CONTROL_FLAG_IGNORE_PERR) {
6205 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
6206 word |= CONTROL_FLAG_IGNORE_PERR;
6207 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
6208 }
6209
6210 /*
6211 * If the BIOS control flag AIPP (Asynchronous Information
6212 * Phase Protection) disable bit is not set, then set the firmware
6213 * 'control_flag' CONTROL_FLAG_ENABLE_AIPP bit to enable
6214 * AIPP checking and encoding.
6215 */
6216 if ((asc_dvc->bios_ctrl & BIOS_CTRL_AIPP_DIS) == 0) {
6217 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
6218 word |= CONTROL_FLAG_ENABLE_AIPP;
6219 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word);
6220 }
6221
6222 /*
6223 * For ASC-38C1600 use DMA_CFG0 default values: FIFO_THRESH_80B [6:4],
6224 * and START_CTL_TH [3:2].
6225 */
6226 AdvWriteByteRegister(iop_base, IOPB_DMA_CFG0,
6227 FIFO_THRESH_80B | START_CTL_TH | READ_CMD_MRM);
6228
6229 /*
6230 * Microcode operating variables for WDTR, SDTR, and command tag
6231 * queuing will be set in slave_configure() based on what a
6232 * device reports it is capable of in Inquiry byte 7.
6233 *
6234 * If SCSI Bus Resets have been disabled, then directly set
6235 * SDTR and WDTR from the EEPROM configuration. This will allow
6236 * the BIOS and warm boot to work without a SCSI bus hang on
6237 * the Inquiry caused by host and target mismatched DTR values.
6238 * Without the SCSI Bus Reset, before an Inquiry a device can't
6239 * be assumed to be in Asynchronous, Narrow mode.
6240 */
6241 if ((asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) == 0) {
6242 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE,
6243 asc_dvc->wdtr_able);
6244 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE,
6245 asc_dvc->sdtr_able);
6246 }
6247
6248 /*
6249 * Set microcode operating variables for DISC and SDTR_SPEED1,
6250 * SDTR_SPEED2, SDTR_SPEED3, and SDTR_SPEED4 based on the EEPROM
6251 * configuration values.
6252 *
6253 * The SDTR per TID bitmask overrides the SDTR_SPEED1, SDTR_SPEED2,
6254 * SDTR_SPEED3, and SDTR_SPEED4 values so it is safe to set them
6255 * without determining here whether the device supports SDTR.
6256 */
6257 AdvWriteWordLram(iop_base, ASC_MC_DISC_ENABLE,
6258 asc_dvc->cfg->disc_enable);
6259 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED1, asc_dvc->sdtr_speed1);
6260 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED2, asc_dvc->sdtr_speed2);
6261 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED3, asc_dvc->sdtr_speed3);
6262 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED4, asc_dvc->sdtr_speed4);
6263
6264 /*
6265 * Set SCSI_CFG0 Microcode Default Value.
6266 *
6267 * The microcode will set the SCSI_CFG0 register using this value
6268 * after it is started below.
6269 */
6270 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG0,
6271 PARITY_EN | QUEUE_128 | SEL_TMO_LONG | OUR_ID_EN |
6272 asc_dvc->chip_scsi_id);
6273
6274 /*
6275 * Calculate SCSI_CFG1 Microcode Default Value.
6276 *
6277 * The microcode will set the SCSI_CFG1 register using this value
6278 * after it is started below.
6279 *
6280 * Each ASC-38C1600 function has only two cable detect bits.
6281 * The bus mode override bits are in IOPB_SOFT_OVER_WR.
6282 */
6283 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1);
6284
6285 /*
6286 * If the cable is reversed all of the SCSI_CTRL register signals
6287 * will be set. Check for and return an error if this condition is
6288 * found.
6289 */
6290 if ((AdvReadWordRegister(iop_base, IOPW_SCSI_CTRL) & 0x3F07) == 0x3F07) {
6291 asc_dvc->err_code |= ASC_IERR_REVERSED_CABLE;
6292 return ADV_ERROR;
6293 }
6294
6295 /*
6296 * Each ASC-38C1600 function has two connectors. Only an HVD device
6297 * can not be connected to either connector. An LVD device or SE device
6298 * may be connected to either connecor. If an SE device is connected,
6299 * then at most Ultra speed (20 Mhz) can be used on both connectors.
6300 *
6301 * If an HVD device is attached, return an error.
6302 */
6303 if (scsi_cfg1 & HVD) {
6304 asc_dvc->err_code |= ASC_IERR_HVD_DEVICE;
6305 return ADV_ERROR;
6306 }
6307
6308 /*
6309 * Each function in the ASC-38C1600 uses only the SE cable detect and
6310 * termination because there are two connectors for each function. Each
6311 * function may use either LVD or SE mode. Corresponding the SE automatic
6312 * termination control EEPROM bits are used for each function. Each
6313 * function has its own EEPROM. If SE automatic control is enabled for
6314 * the function, then set the termination value based on a table listed
6315 * in a_condor.h.
6316 *
6317 * If manual termination is specified in the EEPROM for the function,
6318 * then 'termination' was set-up in AscInitFrom38C1600EEPROM() and is
6319 * ready to be 'ored' into SCSI_CFG1.
6320 */
6321 if ((asc_dvc->cfg->termination & TERM_SE) == 0) {
6322 struct pci_dev *pdev = adv_dvc_to_pdev(asc_dvc);
6323 /* SE automatic termination control is enabled. */
6324 switch (scsi_cfg1 & C_DET_SE) {
6325 /* TERM_SE_HI: on, TERM_SE_LO: on */
6326 case 0x1:
6327 case 0x2:
6328 case 0x3:
6329 asc_dvc->cfg->termination |= TERM_SE;
6330 break;
6331
6332 case 0x0:
6333 if (PCI_FUNC(pdev->devfn) == 0) {
6334 /* Function 0 - TERM_SE_HI: off, TERM_SE_LO: off */
6335 } else {
6336 /* Function 1 - TERM_SE_HI: on, TERM_SE_LO: off */
6337 asc_dvc->cfg->termination |= TERM_SE_HI;
6338 }
6339 break;
6340 }
6341 }
6342
6343 /*
6344 * Clear any set TERM_SE bits.
6345 */
6346 scsi_cfg1 &= ~TERM_SE;
6347
6348 /*
6349 * Invert the TERM_SE bits and then set 'scsi_cfg1'.
6350 */
6351 scsi_cfg1 |= (~asc_dvc->cfg->termination & TERM_SE);
6352
6353 /*
6354 * Clear Big Endian and Terminator Polarity bits and set possibly
6355 * modified termination control bits in the Microcode SCSI_CFG1
6356 * Register Value.
6357 *
6358 * Big Endian bit is not used even on big endian machines.
6359 */
6360 scsi_cfg1 &= (~BIG_ENDIAN & ~DIS_TERM_DRV & ~TERM_POL);
6361
6362 /*
6363 * Set SCSI_CFG1 Microcode Default Value
6364 *
6365 * Set possibly modified termination control bits in the Microcode
6366 * SCSI_CFG1 Register Value.
6367 *
6368 * The microcode will set the SCSI_CFG1 register using this value
6369 * after it is started below.
6370 */
6371 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG1, scsi_cfg1);
6372
6373 /*
6374 * Set MEM_CFG Microcode Default Value
6375 *
6376 * The microcode will set the MEM_CFG register using this value
6377 * after it is started below.
6378 *
6379 * MEM_CFG may be accessed as a word or byte, but only bits 0-7
6380 * are defined.
6381 *
6382 * ASC-38C1600 has 32KB internal memory.
6383 *
6384 * XXX - Since ASC38C1600 Rev.3 has a Local RAM failure issue, we come
6385 * out a special 16K Adv Library and Microcode version. After the issue
6386 * resolved, we should turn back to the 32K support. Both a_condor.h and
6387 * mcode.sas files also need to be updated.
6388 *
6389 * AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG,
6390 * BIOS_EN | RAM_SZ_32KB);
6391 */
6392 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG,
6393 BIOS_EN | RAM_SZ_16KB);
6394
6395 /*
6396 * Set SEL_MASK Microcode Default Value
6397 *
6398 * The microcode will set the SEL_MASK register using this value
6399 * after it is started below.
6400 */
6401 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK,
6402 ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id));
6403
6404 AdvBuildCarrierFreelist(asc_dvc);
6405
6406 /*
6407 * Set-up the Host->RISC Initiator Command Queue (ICQ).
6408 */
6409 if ((asc_dvc->icq_sp = asc_dvc->carr_freelist) == NULL) {
6410 asc_dvc->err_code |= ASC_IERR_NO_CARRIER;
6411 return ADV_ERROR;
6412 }
6413 asc_dvc->carr_freelist = (ADV_CARR_T *)
6414 ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->icq_sp->next_vpa));
6415
6416 /*
6417 * The first command issued will be placed in the stopper carrier.
6418 */
6419 asc_dvc->icq_sp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER);
6420
6421 /*
6422 * Set RISC ICQ physical address start value. Initialize the
6423 * COMMA register to the same value otherwise the RISC will
6424 * prematurely detect a command is available.
6425 */
6426 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_ICQ, asc_dvc->icq_sp->carr_pa);
6427 AdvWriteDWordRegister(iop_base, IOPDW_COMMA,
6428 le32_to_cpu(asc_dvc->icq_sp->carr_pa));
6429
6430 /*
6431 * Set-up the RISC->Host Initiator Response Queue (IRQ).
6432 */
6433 if ((asc_dvc->irq_sp = asc_dvc->carr_freelist) == NULL) {
6434 asc_dvc->err_code |= ASC_IERR_NO_CARRIER;
6435 return ADV_ERROR;
6436 }
6437 asc_dvc->carr_freelist = (ADV_CARR_T *)
6438 ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->next_vpa));
6439
6440 /*
6441 * The first command completed by the RISC will be placed in
6442 * the stopper.
6443 *
6444 * Note: Set 'next_vpa' to ASC_CQ_STOPPER. When the request is
6445 * completed the RISC will set the ASC_RQ_STOPPER bit.
6446 */
6447 asc_dvc->irq_sp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER);
6448
6449 /*
6450 * Set RISC IRQ physical address start value.
6451 */
6452 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IRQ, asc_dvc->irq_sp->carr_pa);
6453 asc_dvc->carr_pending_cnt = 0;
6454
6455 AdvWriteByteRegister(iop_base, IOPB_INTR_ENABLES,
6456 (ADV_INTR_ENABLE_HOST_INTR |
6457 ADV_INTR_ENABLE_GLOBAL_INTR));
6458 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, word);
6459 AdvWriteWordRegister(iop_base, IOPW_PC, word);
6460
6461 /* finally, finally, gentlemen, start your engine */
6462 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_RUN);
6463
6464 /*
6465 * Reset the SCSI Bus if the EEPROM indicates that SCSI Bus
6466 * Resets should be performed. The RISC has to be running
6467 * to issue a SCSI Bus Reset.
6468 */
6469 if (asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) {
6470 /*
6471 * If the BIOS Signature is present in memory, restore the
6472 * per TID microcode operating variables.
6473 */
6474 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] ==
6475 0x55AA) {
6476 /*
6477 * Restore per TID negotiated values.
6478 */
6479 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
6480 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
6481 AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able);
6482 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE,
6483 tagqng_able);
6484 for (tid = 0; tid <= ASC_MAX_TID; tid++) {
6485 AdvWriteByteLram(iop_base,
6486 ASC_MC_NUMBER_OF_MAX_CMD + tid,
6487 max_cmd[tid]);
6488 }
6489 } else {
6490 if (AdvResetSB(asc_dvc) != ADV_TRUE) {
6491 warn_code = ASC_WARN_BUSRESET_ERROR;
6492 }
6493 }
6494 }
6495
6496 return warn_code;
6497 }
6498
6499 /*
6500 * Reset chip and SCSI Bus.
6501 *
6502 * Return Value:
6503 * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful.
6504 * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure.
6505 */
6506 static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc)
6507 {
6508 int status;
6509 ushort wdtr_able, sdtr_able, tagqng_able;
6510 ushort ppr_able = 0;
6511 uchar tid, max_cmd[ADV_MAX_TID + 1];
6512 AdvPortAddr iop_base;
6513 ushort bios_sig;
6514
6515 iop_base = asc_dvc->iop_base;
6516
6517 /*
6518 * Save current per TID negotiated values.
6519 */
6520 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
6521 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
6522 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) {
6523 AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able);
6524 }
6525 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able);
6526 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
6527 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid,
6528 max_cmd[tid]);
6529 }
6530
6531 /*
6532 * Force the AdvInitAsc3550/38C0800Driver() function to
6533 * perform a SCSI Bus Reset by clearing the BIOS signature word.
6534 * The initialization functions assumes a SCSI Bus Reset is not
6535 * needed if the BIOS signature word is present.
6536 */
6537 AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig);
6538 AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0);
6539
6540 /*
6541 * Stop chip and reset it.
6542 */
6543 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP);
6544 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET);
6545 mdelay(100);
6546 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG,
6547 ADV_CTRL_REG_CMD_WR_IO_REG);
6548
6549 /*
6550 * Reset Adv Library error code, if any, and try
6551 * re-initializing the chip.
6552 */
6553 asc_dvc->err_code = 0;
6554 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) {
6555 status = AdvInitAsc38C1600Driver(asc_dvc);
6556 } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) {
6557 status = AdvInitAsc38C0800Driver(asc_dvc);
6558 } else {
6559 status = AdvInitAsc3550Driver(asc_dvc);
6560 }
6561
6562 /* Translate initialization return value to status value. */
6563 if (status == 0) {
6564 status = ADV_TRUE;
6565 } else {
6566 status = ADV_FALSE;
6567 }
6568
6569 /*
6570 * Restore the BIOS signature word.
6571 */
6572 AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig);
6573
6574 /*
6575 * Restore per TID negotiated values.
6576 */
6577 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able);
6578 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able);
6579 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) {
6580 AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able);
6581 }
6582 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able);
6583 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
6584 AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid,
6585 max_cmd[tid]);
6586 }
6587
6588 return status;
6589 }
6590
6591 /*
6592 * adv_async_callback() - Adv Library asynchronous event callback function.
6593 */
6594 static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code)
6595 {
6596 switch (code) {
6597 case ADV_ASYNC_SCSI_BUS_RESET_DET:
6598 /*
6599 * The firmware detected a SCSI Bus reset.
6600 */
6601 ASC_DBG(0, "ADV_ASYNC_SCSI_BUS_RESET_DET\n");
6602 break;
6603
6604 case ADV_ASYNC_RDMA_FAILURE:
6605 /*
6606 * Handle RDMA failure by resetting the SCSI Bus and
6607 * possibly the chip if it is unresponsive. Log the error
6608 * with a unique code.
6609 */
6610 ASC_DBG(0, "ADV_ASYNC_RDMA_FAILURE\n");
6611 AdvResetChipAndSB(adv_dvc_varp);
6612 break;
6613
6614 case ADV_HOST_SCSI_BUS_RESET:
6615 /*
6616 * Host generated SCSI bus reset occurred.
6617 */
6618 ASC_DBG(0, "ADV_HOST_SCSI_BUS_RESET\n");
6619 break;
6620
6621 default:
6622 ASC_DBG(0, "unknown code 0x%x\n", code);
6623 break;
6624 }
6625 }
6626
6627 /*
6628 * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR().
6629 *
6630 * Callback function for the Wide SCSI Adv Library.
6631 */
6632 static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp)
6633 {
6634 struct asc_board *boardp;
6635 adv_req_t *reqp;
6636 adv_sgblk_t *sgblkp;
6637 struct scsi_cmnd *scp;
6638 struct Scsi_Host *shost;
6639 ADV_DCNT resid_cnt;
6640
6641 ASC_DBG(1, "adv_dvc_varp 0x%lx, scsiqp 0x%lx\n",
6642 (ulong)adv_dvc_varp, (ulong)scsiqp);
6643 ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp);
6644
6645 /*
6646 * Get the adv_req_t structure for the command that has been
6647 * completed. The adv_req_t structure actually contains the
6648 * completed ADV_SCSI_REQ_Q structure.
6649 */
6650 reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr);
6651 ASC_DBG(1, "reqp 0x%lx\n", (ulong)reqp);
6652 if (reqp == NULL) {
6653 ASC_PRINT("adv_isr_callback: reqp is NULL\n");
6654 return;
6655 }
6656
6657 /*
6658 * Get the struct scsi_cmnd structure and Scsi_Host structure for the
6659 * command that has been completed.
6660 *
6661 * Note: The adv_req_t request structure and adv_sgblk_t structure,
6662 * if any, are dropped, because a board structure pointer can not be
6663 * determined.
6664 */
6665 scp = reqp->cmndp;
6666 ASC_DBG(1, "scp 0x%p\n", scp);
6667 if (scp == NULL) {
6668 ASC_PRINT
6669 ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n");
6670 return;
6671 }
6672 ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len);
6673
6674 shost = scp->device->host;
6675 ASC_STATS(shost, callback);
6676 ASC_DBG(1, "shost 0x%p\n", shost);
6677
6678 boardp = shost_priv(shost);
6679 BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var);
6680
6681 /*
6682 * 'done_status' contains the command's ending status.
6683 */
6684 switch (scsiqp->done_status) {
6685 case QD_NO_ERROR:
6686 ASC_DBG(2, "QD_NO_ERROR\n");
6687 scp->result = 0;
6688
6689 /*
6690 * Check for an underrun condition.
6691 *
6692 * If there was no error and an underrun condition, then
6693 * then return the number of underrun bytes.
6694 */
6695 resid_cnt = le32_to_cpu(scsiqp->data_cnt);
6696 if (scsi_bufflen(scp) != 0 && resid_cnt != 0 &&
6697 resid_cnt <= scsi_bufflen(scp)) {
6698 ASC_DBG(1, "underrun condition %lu bytes\n",
6699 (ulong)resid_cnt);
6700 scsi_set_resid(scp, resid_cnt);
6701 }
6702 break;
6703
6704 case QD_WITH_ERROR:
6705 ASC_DBG(2, "QD_WITH_ERROR\n");
6706 switch (scsiqp->host_status) {
6707 case QHSTA_NO_ERROR:
6708 if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) {
6709 ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
6710 ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
6711 SCSI_SENSE_BUFFERSIZE);
6712 /*
6713 * Note: The 'status_byte()' macro used by
6714 * target drivers defined in scsi.h shifts the
6715 * status byte returned by host drivers right
6716 * by 1 bit. This is why target drivers also
6717 * use right shifted status byte definitions.
6718 * For instance target drivers use
6719 * CHECK_CONDITION, defined to 0x1, instead of
6720 * the SCSI defined check condition value of
6721 * 0x2. Host drivers are supposed to return
6722 * the status byte as it is defined by SCSI.
6723 */
6724 scp->result = DRIVER_BYTE(DRIVER_SENSE) |
6725 STATUS_BYTE(scsiqp->scsi_status);
6726 } else {
6727 scp->result = STATUS_BYTE(scsiqp->scsi_status);
6728 }
6729 break;
6730
6731 default:
6732 /* Some other QHSTA error occurred. */
6733 ASC_DBG(1, "host_status 0x%x\n", scsiqp->host_status);
6734 scp->result = HOST_BYTE(DID_BAD_TARGET);
6735 break;
6736 }
6737 break;
6738
6739 case QD_ABORTED_BY_HOST:
6740 ASC_DBG(1, "QD_ABORTED_BY_HOST\n");
6741 scp->result =
6742 HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status);
6743 break;
6744
6745 default:
6746 ASC_DBG(1, "done_status 0x%x\n", scsiqp->done_status);
6747 scp->result =
6748 HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status);
6749 break;
6750 }
6751
6752 /*
6753 * If the 'init_tidmask' bit isn't already set for the target and the
6754 * current request finished normally, then set the bit for the target
6755 * to indicate that a device is present.
6756 */
6757 if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 &&
6758 scsiqp->done_status == QD_NO_ERROR &&
6759 scsiqp->host_status == QHSTA_NO_ERROR) {
6760 boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id);
6761 }
6762
6763 asc_scsi_done(scp);
6764
6765 /*
6766 * Free all 'adv_sgblk_t' structures allocated for the request.
6767 */
6768 while ((sgblkp = reqp->sgblkp) != NULL) {
6769 /* Remove 'sgblkp' from the request list. */
6770 reqp->sgblkp = sgblkp->next_sgblkp;
6771
6772 /* Add 'sgblkp' to the board free list. */
6773 sgblkp->next_sgblkp = boardp->adv_sgblkp;
6774 boardp->adv_sgblkp = sgblkp;
6775 }
6776
6777 /*
6778 * Free the adv_req_t structure used with the command by adding
6779 * it back to the board free list.
6780 */
6781 reqp->next_reqp = boardp->adv_reqp;
6782 boardp->adv_reqp = reqp;
6783
6784 ASC_DBG(1, "done\n");
6785 }
6786
6787 /*
6788 * Adv Library Interrupt Service Routine
6789 *
6790 * This function is called by a driver's interrupt service routine.
6791 * The function disables and re-enables interrupts.
6792 *
6793 * When a microcode idle command is completed, the ADV_DVC_VAR
6794 * 'idle_cmd_done' field is set to ADV_TRUE.
6795 *
6796 * Note: AdvISR() can be called when interrupts are disabled or even
6797 * when there is no hardware interrupt condition present. It will
6798 * always check for completed idle commands and microcode requests.
6799 * This is an important feature that shouldn't be changed because it
6800 * allows commands to be completed from polling mode loops.
6801 *
6802 * Return:
6803 * ADV_TRUE(1) - interrupt was pending
6804 * ADV_FALSE(0) - no interrupt was pending
6805 */
6806 static int AdvISR(ADV_DVC_VAR *asc_dvc)
6807 {
6808 AdvPortAddr iop_base;
6809 uchar int_stat;
6810 ushort target_bit;
6811 ADV_CARR_T *free_carrp;
6812 ADV_VADDR irq_next_vpa;
6813 ADV_SCSI_REQ_Q *scsiq;
6814
6815 iop_base = asc_dvc->iop_base;
6816
6817 /* Reading the register clears the interrupt. */
6818 int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG);
6819
6820 if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB |
6821 ADV_INTR_STATUS_INTRC)) == 0) {
6822 return ADV_FALSE;
6823 }
6824
6825 /*
6826 * Notify the driver of an asynchronous microcode condition by
6827 * calling the adv_async_callback function. The function
6828 * is passed the microcode ASC_MC_INTRB_CODE byte value.
6829 */
6830 if (int_stat & ADV_INTR_STATUS_INTRB) {
6831 uchar intrb_code;
6832
6833 AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code);
6834
6835 if (asc_dvc->chip_type == ADV_CHIP_ASC3550 ||
6836 asc_dvc->chip_type == ADV_CHIP_ASC38C0800) {
6837 if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE &&
6838 asc_dvc->carr_pending_cnt != 0) {
6839 AdvWriteByteRegister(iop_base, IOPB_TICKLE,
6840 ADV_TICKLE_A);
6841 if (asc_dvc->chip_type == ADV_CHIP_ASC3550) {
6842 AdvWriteByteRegister(iop_base,
6843 IOPB_TICKLE,
6844 ADV_TICKLE_NOP);
6845 }
6846 }
6847 }
6848
6849 adv_async_callback(asc_dvc, intrb_code);
6850 }
6851
6852 /*
6853 * Check if the IRQ stopper carrier contains a completed request.
6854 */
6855 while (((irq_next_vpa =
6856 le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ASC_RQ_DONE) != 0) {
6857 /*
6858 * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure.
6859 * The RISC will have set 'areq_vpa' to a virtual address.
6860 *
6861 * The firmware will have copied the ASC_SCSI_REQ_Q.scsiq_ptr
6862 * field to the carrier ADV_CARR_T.areq_vpa field. The conversion
6863 * below complements the conversion of ASC_SCSI_REQ_Q.scsiq_ptr'
6864 * in AdvExeScsiQueue().
6865 */
6866 scsiq = (ADV_SCSI_REQ_Q *)
6867 ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->areq_vpa));
6868
6869 /*
6870 * Request finished with good status and the queue was not
6871 * DMAed to host memory by the firmware. Set all status fields
6872 * to indicate good status.
6873 */
6874 if ((irq_next_vpa & ASC_RQ_GOOD) != 0) {
6875 scsiq->done_status = QD_NO_ERROR;
6876 scsiq->host_status = scsiq->scsi_status = 0;
6877 scsiq->data_cnt = 0L;
6878 }
6879
6880 /*
6881 * Advance the stopper pointer to the next carrier
6882 * ignoring the lower four bits. Free the previous
6883 * stopper carrier.
6884 */
6885 free_carrp = asc_dvc->irq_sp;
6886 asc_dvc->irq_sp = (ADV_CARR_T *)
6887 ADV_U32_TO_VADDR(ASC_GET_CARRP(irq_next_vpa));
6888
6889 free_carrp->next_vpa =
6890 cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist));
6891 asc_dvc->carr_freelist = free_carrp;
6892 asc_dvc->carr_pending_cnt--;
6893
6894 target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id);
6895
6896 /*
6897 * Clear request microcode control flag.
6898 */
6899 scsiq->cntl = 0;
6900
6901 /*
6902 * Notify the driver of the completed request by passing
6903 * the ADV_SCSI_REQ_Q pointer to its callback function.
6904 */
6905 scsiq->a_flag |= ADV_SCSIQ_DONE;
6906 adv_isr_callback(asc_dvc, scsiq);
6907 /*
6908 * Note: After the driver callback function is called, 'scsiq'
6909 * can no longer be referenced.
6910 *
6911 * Fall through and continue processing other completed
6912 * requests...
6913 */
6914 }
6915 return ADV_TRUE;
6916 }
6917
6918 static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code)
6919 {
6920 if (asc_dvc->err_code == 0) {
6921 asc_dvc->err_code = err_code;
6922 AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W,
6923 err_code);
6924 }
6925 return err_code;
6926 }
6927
6928 static void AscAckInterrupt(PortAddr iop_base)
6929 {
6930 uchar host_flag;
6931 uchar risc_flag;
6932 ushort loop;
6933
6934 loop = 0;
6935 do {
6936 risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B);
6937 if (loop++ > 0x7FFF) {
6938 break;
6939 }
6940 } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0);
6941 host_flag =
6942 AscReadLramByte(iop_base,
6943 ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT);
6944 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B,
6945 (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT));
6946 AscSetChipStatus(iop_base, CIW_INT_ACK);
6947 loop = 0;
6948 while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) {
6949 AscSetChipStatus(iop_base, CIW_INT_ACK);
6950 if (loop++ > 3) {
6951 break;
6952 }
6953 }
6954 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag);
6955 }
6956
6957 static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time)
6958 {
6959 const uchar *period_table;
6960 int max_index;
6961 int min_index;
6962 int i;
6963
6964 period_table = asc_dvc->sdtr_period_tbl;
6965 max_index = (int)asc_dvc->max_sdtr_index;
6966 min_index = (int)asc_dvc->min_sdtr_index;
6967 if ((syn_time <= period_table[max_index])) {
6968 for (i = min_index; i < (max_index - 1); i++) {
6969 if (syn_time <= period_table[i]) {
6970 return (uchar)i;
6971 }
6972 }
6973 return (uchar)max_index;
6974 } else {
6975 return (uchar)(max_index + 1);
6976 }
6977 }
6978
6979 static uchar
6980 AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset)
6981 {
6982 EXT_MSG sdtr_buf;
6983 uchar sdtr_period_index;
6984 PortAddr iop_base;
6985
6986 iop_base = asc_dvc->iop_base;
6987 sdtr_buf.msg_type = EXTENDED_MESSAGE;
6988 sdtr_buf.msg_len = MS_SDTR_LEN;
6989 sdtr_buf.msg_req = EXTENDED_SDTR;
6990 sdtr_buf.xfer_period = sdtr_period;
6991 sdtr_offset &= ASC_SYN_MAX_OFFSET;
6992 sdtr_buf.req_ack_offset = sdtr_offset;
6993 sdtr_period_index = AscGetSynPeriodIndex(asc_dvc, sdtr_period);
6994 if (sdtr_period_index <= asc_dvc->max_sdtr_index) {
6995 AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG,
6996 (uchar *)&sdtr_buf,
6997 sizeof(EXT_MSG) >> 1);
6998 return ((sdtr_period_index << 4) | sdtr_offset);
6999 } else {
7000 sdtr_buf.req_ack_offset = 0;
7001 AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG,
7002 (uchar *)&sdtr_buf,
7003 sizeof(EXT_MSG) >> 1);
7004 return 0;
7005 }
7006 }
7007
7008 static uchar
7009 AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset)
7010 {
7011 uchar byte;
7012 uchar sdtr_period_ix;
7013
7014 sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period);
7015 if (sdtr_period_ix > asc_dvc->max_sdtr_index)
7016 return 0xFF;
7017 byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET);
7018 return byte;
7019 }
7020
7021 static int AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data)
7022 {
7023 ASC_SCSI_BIT_ID_TYPE org_id;
7024 int i;
7025 int sta = TRUE;
7026
7027 AscSetBank(iop_base, 1);
7028 org_id = AscReadChipDvcID(iop_base);
7029 for (i = 0; i <= ASC_MAX_TID; i++) {
7030 if (org_id == (0x01 << i))
7031 break;
7032 }
7033 org_id = (ASC_SCSI_BIT_ID_TYPE) i;
7034 AscWriteChipDvcID(iop_base, id);
7035 if (AscReadChipDvcID(iop_base) == (0x01 << id)) {
7036 AscSetBank(iop_base, 0);
7037 AscSetChipSyn(iop_base, sdtr_data);
7038 if (AscGetChipSyn(iop_base) != sdtr_data) {
7039 sta = FALSE;
7040 }
7041 } else {
7042 sta = FALSE;
7043 }
7044 AscSetBank(iop_base, 1);
7045 AscWriteChipDvcID(iop_base, org_id);
7046 AscSetBank(iop_base, 0);
7047 return (sta);
7048 }
7049
7050 static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no)
7051 {
7052 AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data);
7053 AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data);
7054 }
7055
7056 static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc)
7057 {
7058 EXT_MSG ext_msg;
7059 EXT_MSG out_msg;
7060 ushort halt_q_addr;
7061 int sdtr_accept;
7062 ushort int_halt_code;
7063 ASC_SCSI_BIT_ID_TYPE scsi_busy;
7064 ASC_SCSI_BIT_ID_TYPE target_id;
7065 PortAddr iop_base;
7066 uchar tag_code;
7067 uchar q_status;
7068 uchar halt_qp;
7069 uchar sdtr_data;
7070 uchar target_ix;
7071 uchar q_cntl, tid_no;
7072 uchar cur_dvc_qng;
7073 uchar asyn_sdtr;
7074 uchar scsi_status;
7075 struct asc_board *boardp;
7076
7077 BUG_ON(!asc_dvc->drv_ptr);
7078 boardp = asc_dvc->drv_ptr;
7079
7080 iop_base = asc_dvc->iop_base;
7081 int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W);
7082
7083 halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B);
7084 halt_q_addr = ASC_QNO_TO_QADDR(halt_qp);
7085 target_ix = AscReadLramByte(iop_base,
7086 (ushort)(halt_q_addr +
7087 (ushort)ASC_SCSIQ_B_TARGET_IX));
7088 q_cntl = AscReadLramByte(iop_base,
7089 (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL));
7090 tid_no = ASC_TIX_TO_TID(target_ix);
7091 target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no);
7092 if (asc_dvc->pci_fix_asyn_xfer & target_id) {
7093 asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB;
7094 } else {
7095 asyn_sdtr = 0;
7096 }
7097 if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) {
7098 if (asc_dvc->pci_fix_asyn_xfer & target_id) {
7099 AscSetChipSDTR(iop_base, 0, tid_no);
7100 boardp->sdtr_data[tid_no] = 0;
7101 }
7102 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7103 return (0);
7104 } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) {
7105 if (asc_dvc->pci_fix_asyn_xfer & target_id) {
7106 AscSetChipSDTR(iop_base, asyn_sdtr, tid_no);
7107 boardp->sdtr_data[tid_no] = asyn_sdtr;
7108 }
7109 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7110 return (0);
7111 } else if (int_halt_code == ASC_HALT_EXTMSG_IN) {
7112 AscMemWordCopyPtrFromLram(iop_base,
7113 ASCV_MSGIN_BEG,
7114 (uchar *)&ext_msg,
7115 sizeof(EXT_MSG) >> 1);
7116
7117 if (ext_msg.msg_type == EXTENDED_MESSAGE &&
7118 ext_msg.msg_req == EXTENDED_SDTR &&
7119 ext_msg.msg_len == MS_SDTR_LEN) {
7120 sdtr_accept = TRUE;
7121 if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) {
7122
7123 sdtr_accept = FALSE;
7124 ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET;
7125 }
7126 if ((ext_msg.xfer_period <
7127 asc_dvc->sdtr_period_tbl[asc_dvc->min_sdtr_index])
7128 || (ext_msg.xfer_period >
7129 asc_dvc->sdtr_period_tbl[asc_dvc->
7130 max_sdtr_index])) {
7131 sdtr_accept = FALSE;
7132 ext_msg.xfer_period =
7133 asc_dvc->sdtr_period_tbl[asc_dvc->
7134 min_sdtr_index];
7135 }
7136 if (sdtr_accept) {
7137 sdtr_data =
7138 AscCalSDTRData(asc_dvc, ext_msg.xfer_period,
7139 ext_msg.req_ack_offset);
7140 if ((sdtr_data == 0xFF)) {
7141
7142 q_cntl |= QC_MSG_OUT;
7143 asc_dvc->init_sdtr &= ~target_id;
7144 asc_dvc->sdtr_done &= ~target_id;
7145 AscSetChipSDTR(iop_base, asyn_sdtr,
7146 tid_no);
7147 boardp->sdtr_data[tid_no] = asyn_sdtr;
7148 }
7149 }
7150 if (ext_msg.req_ack_offset == 0) {
7151
7152 q_cntl &= ~QC_MSG_OUT;
7153 asc_dvc->init_sdtr &= ~target_id;
7154 asc_dvc->sdtr_done &= ~target_id;
7155 AscSetChipSDTR(iop_base, asyn_sdtr, tid_no);
7156 } else {
7157 if (sdtr_accept && (q_cntl & QC_MSG_OUT)) {
7158 q_cntl &= ~QC_MSG_OUT;
7159 asc_dvc->sdtr_done |= target_id;
7160 asc_dvc->init_sdtr |= target_id;
7161 asc_dvc->pci_fix_asyn_xfer &=
7162 ~target_id;
7163 sdtr_data =
7164 AscCalSDTRData(asc_dvc,
7165 ext_msg.xfer_period,
7166 ext_msg.
7167 req_ack_offset);
7168 AscSetChipSDTR(iop_base, sdtr_data,
7169 tid_no);
7170 boardp->sdtr_data[tid_no] = sdtr_data;
7171 } else {
7172 q_cntl |= QC_MSG_OUT;
7173 AscMsgOutSDTR(asc_dvc,
7174 ext_msg.xfer_period,
7175 ext_msg.req_ack_offset);
7176 asc_dvc->pci_fix_asyn_xfer &=
7177 ~target_id;
7178 sdtr_data =
7179 AscCalSDTRData(asc_dvc,
7180 ext_msg.xfer_period,
7181 ext_msg.
7182 req_ack_offset);
7183 AscSetChipSDTR(iop_base, sdtr_data,
7184 tid_no);
7185 boardp->sdtr_data[tid_no] = sdtr_data;
7186 asc_dvc->sdtr_done |= target_id;
7187 asc_dvc->init_sdtr |= target_id;
7188 }
7189 }
7190
7191 AscWriteLramByte(iop_base,
7192 (ushort)(halt_q_addr +
7193 (ushort)ASC_SCSIQ_B_CNTL),
7194 q_cntl);
7195 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7196 return (0);
7197 } else if (ext_msg.msg_type == EXTENDED_MESSAGE &&
7198 ext_msg.msg_req == EXTENDED_WDTR &&
7199 ext_msg.msg_len == MS_WDTR_LEN) {
7200
7201 ext_msg.wdtr_width = 0;
7202 AscMemWordCopyPtrToLram(iop_base,
7203 ASCV_MSGOUT_BEG,
7204 (uchar *)&ext_msg,
7205 sizeof(EXT_MSG) >> 1);
7206 q_cntl |= QC_MSG_OUT;
7207 AscWriteLramByte(iop_base,
7208 (ushort)(halt_q_addr +
7209 (ushort)ASC_SCSIQ_B_CNTL),
7210 q_cntl);
7211 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7212 return (0);
7213 } else {
7214
7215 ext_msg.msg_type = MESSAGE_REJECT;
7216 AscMemWordCopyPtrToLram(iop_base,
7217 ASCV_MSGOUT_BEG,
7218 (uchar *)&ext_msg,
7219 sizeof(EXT_MSG) >> 1);
7220 q_cntl |= QC_MSG_OUT;
7221 AscWriteLramByte(iop_base,
7222 (ushort)(halt_q_addr +
7223 (ushort)ASC_SCSIQ_B_CNTL),
7224 q_cntl);
7225 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7226 return (0);
7227 }
7228 } else if (int_halt_code == ASC_HALT_CHK_CONDITION) {
7229
7230 q_cntl |= QC_REQ_SENSE;
7231
7232 if ((asc_dvc->init_sdtr & target_id) != 0) {
7233
7234 asc_dvc->sdtr_done &= ~target_id;
7235
7236 sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no);
7237 q_cntl |= QC_MSG_OUT;
7238 AscMsgOutSDTR(asc_dvc,
7239 asc_dvc->
7240 sdtr_period_tbl[(sdtr_data >> 4) &
7241 (uchar)(asc_dvc->
7242 max_sdtr_index -
7243 1)],
7244 (uchar)(sdtr_data & (uchar)
7245 ASC_SYN_MAX_OFFSET));
7246 }
7247
7248 AscWriteLramByte(iop_base,
7249 (ushort)(halt_q_addr +
7250 (ushort)ASC_SCSIQ_B_CNTL), q_cntl);
7251
7252 tag_code = AscReadLramByte(iop_base,
7253 (ushort)(halt_q_addr + (ushort)
7254 ASC_SCSIQ_B_TAG_CODE));
7255 tag_code &= 0xDC;
7256 if ((asc_dvc->pci_fix_asyn_xfer & target_id)
7257 && !(asc_dvc->pci_fix_asyn_xfer_always & target_id)
7258 ) {
7259
7260 tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT
7261 | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX);
7262
7263 }
7264 AscWriteLramByte(iop_base,
7265 (ushort)(halt_q_addr +
7266 (ushort)ASC_SCSIQ_B_TAG_CODE),
7267 tag_code);
7268
7269 q_status = AscReadLramByte(iop_base,
7270 (ushort)(halt_q_addr + (ushort)
7271 ASC_SCSIQ_B_STATUS));
7272 q_status |= (QS_READY | QS_BUSY);
7273 AscWriteLramByte(iop_base,
7274 (ushort)(halt_q_addr +
7275 (ushort)ASC_SCSIQ_B_STATUS),
7276 q_status);
7277
7278 scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B);
7279 scsi_busy &= ~target_id;
7280 AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy);
7281
7282 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7283 return (0);
7284 } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) {
7285
7286 AscMemWordCopyPtrFromLram(iop_base,
7287 ASCV_MSGOUT_BEG,
7288 (uchar *)&out_msg,
7289 sizeof(EXT_MSG) >> 1);
7290
7291 if ((out_msg.msg_type == EXTENDED_MESSAGE) &&
7292 (out_msg.msg_len == MS_SDTR_LEN) &&
7293 (out_msg.msg_req == EXTENDED_SDTR)) {
7294
7295 asc_dvc->init_sdtr &= ~target_id;
7296 asc_dvc->sdtr_done &= ~target_id;
7297 AscSetChipSDTR(iop_base, asyn_sdtr, tid_no);
7298 boardp->sdtr_data[tid_no] = asyn_sdtr;
7299 }
7300 q_cntl &= ~QC_MSG_OUT;
7301 AscWriteLramByte(iop_base,
7302 (ushort)(halt_q_addr +
7303 (ushort)ASC_SCSIQ_B_CNTL), q_cntl);
7304 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7305 return (0);
7306 } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) {
7307
7308 scsi_status = AscReadLramByte(iop_base,
7309 (ushort)((ushort)halt_q_addr +
7310 (ushort)
7311 ASC_SCSIQ_SCSI_STATUS));
7312 cur_dvc_qng =
7313 AscReadLramByte(iop_base,
7314 (ushort)((ushort)ASC_QADR_BEG +
7315 (ushort)target_ix));
7316 if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) {
7317
7318 scsi_busy = AscReadLramByte(iop_base,
7319 (ushort)ASCV_SCSIBUSY_B);
7320 scsi_busy |= target_id;
7321 AscWriteLramByte(iop_base,
7322 (ushort)ASCV_SCSIBUSY_B, scsi_busy);
7323 asc_dvc->queue_full_or_busy |= target_id;
7324
7325 if (scsi_status == SAM_STAT_TASK_SET_FULL) {
7326 if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) {
7327 cur_dvc_qng -= 1;
7328 asc_dvc->max_dvc_qng[tid_no] =
7329 cur_dvc_qng;
7330
7331 AscWriteLramByte(iop_base,
7332 (ushort)((ushort)
7333 ASCV_MAX_DVC_QNG_BEG
7334 + (ushort)
7335 tid_no),
7336 cur_dvc_qng);
7337
7338 /*
7339 * Set the device queue depth to the
7340 * number of active requests when the
7341 * QUEUE FULL condition was encountered.
7342 */
7343 boardp->queue_full |= target_id;
7344 boardp->queue_full_cnt[tid_no] =
7345 cur_dvc_qng;
7346 }
7347 }
7348 }
7349 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7350 return (0);
7351 }
7352 #if CC_VERY_LONG_SG_LIST
7353 else if (int_halt_code == ASC_HALT_HOST_COPY_SG_LIST_TO_RISC) {
7354 uchar q_no;
7355 ushort q_addr;
7356 uchar sg_wk_q_no;
7357 uchar first_sg_wk_q_no;
7358 ASC_SCSI_Q *scsiq; /* Ptr to driver request. */
7359 ASC_SG_HEAD *sg_head; /* Ptr to driver SG request. */
7360 ASC_SG_LIST_Q scsi_sg_q; /* Structure written to queue. */
7361 ushort sg_list_dwords;
7362 ushort sg_entry_cnt;
7363 uchar next_qp;
7364 int i;
7365
7366 q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP);
7367 if (q_no == ASC_QLINK_END)
7368 return 0;
7369
7370 q_addr = ASC_QNO_TO_QADDR(q_no);
7371
7372 /*
7373 * Convert the request's SRB pointer to a host ASC_SCSI_REQ
7374 * structure pointer using a macro provided by the driver.
7375 * The ASC_SCSI_REQ pointer provides a pointer to the
7376 * host ASC_SG_HEAD structure.
7377 */
7378 /* Read request's SRB pointer. */
7379 scsiq = (ASC_SCSI_Q *)
7380 ASC_SRB2SCSIQ(ASC_U32_TO_VADDR(AscReadLramDWord(iop_base,
7381 (ushort)
7382 (q_addr +
7383 ASC_SCSIQ_D_SRBPTR))));
7384
7385 /*
7386 * Get request's first and working SG queue.
7387 */
7388 sg_wk_q_no = AscReadLramByte(iop_base,
7389 (ushort)(q_addr +
7390 ASC_SCSIQ_B_SG_WK_QP));
7391
7392 first_sg_wk_q_no = AscReadLramByte(iop_base,
7393 (ushort)(q_addr +
7394 ASC_SCSIQ_B_FIRST_SG_WK_QP));
7395
7396 /*
7397 * Reset request's working SG queue back to the
7398 * first SG queue.
7399 */
7400 AscWriteLramByte(iop_base,
7401 (ushort)(q_addr +
7402 (ushort)ASC_SCSIQ_B_SG_WK_QP),
7403 first_sg_wk_q_no);
7404
7405 sg_head = scsiq->sg_head;
7406
7407 /*
7408 * Set sg_entry_cnt to the number of SG elements
7409 * that will be completed on this interrupt.
7410 *
7411 * Note: The allocated SG queues contain ASC_MAX_SG_LIST - 1
7412 * SG elements. The data_cnt and data_addr fields which
7413 * add 1 to the SG element capacity are not used when
7414 * restarting SG handling after a halt.
7415 */
7416 if (scsiq->remain_sg_entry_cnt > (ASC_MAX_SG_LIST - 1)) {
7417 sg_entry_cnt = ASC_MAX_SG_LIST - 1;
7418
7419 /*
7420 * Keep track of remaining number of SG elements that
7421 * will need to be handled on the next interrupt.
7422 */
7423 scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1);
7424 } else {
7425 sg_entry_cnt = scsiq->remain_sg_entry_cnt;
7426 scsiq->remain_sg_entry_cnt = 0;
7427 }
7428
7429 /*
7430 * Copy SG elements into the list of allocated SG queues.
7431 *
7432 * Last index completed is saved in scsiq->next_sg_index.
7433 */
7434 next_qp = first_sg_wk_q_no;
7435 q_addr = ASC_QNO_TO_QADDR(next_qp);
7436 scsi_sg_q.sg_head_qp = q_no;
7437 scsi_sg_q.cntl = QCSG_SG_XFER_LIST;
7438 for (i = 0; i < sg_head->queue_cnt; i++) {
7439 scsi_sg_q.seq_no = i + 1;
7440 if (sg_entry_cnt > ASC_SG_LIST_PER_Q) {
7441 sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2);
7442 sg_entry_cnt -= ASC_SG_LIST_PER_Q;
7443 /*
7444 * After very first SG queue RISC FW uses next
7445 * SG queue first element then checks sg_list_cnt
7446 * against zero and then decrements, so set
7447 * sg_list_cnt 1 less than number of SG elements
7448 * in each SG queue.
7449 */
7450 scsi_sg_q.sg_list_cnt = ASC_SG_LIST_PER_Q - 1;
7451 scsi_sg_q.sg_cur_list_cnt =
7452 ASC_SG_LIST_PER_Q - 1;
7453 } else {
7454 /*
7455 * This is the last SG queue in the list of
7456 * allocated SG queues. If there are more
7457 * SG elements than will fit in the allocated
7458 * queues, then set the QCSG_SG_XFER_MORE flag.
7459 */
7460 if (scsiq->remain_sg_entry_cnt != 0) {
7461 scsi_sg_q.cntl |= QCSG_SG_XFER_MORE;
7462 } else {
7463 scsi_sg_q.cntl |= QCSG_SG_XFER_END;
7464 }
7465 /* equals sg_entry_cnt * 2 */
7466 sg_list_dwords = sg_entry_cnt << 1;
7467 scsi_sg_q.sg_list_cnt = sg_entry_cnt - 1;
7468 scsi_sg_q.sg_cur_list_cnt = sg_entry_cnt - 1;
7469 sg_entry_cnt = 0;
7470 }
7471
7472 scsi_sg_q.q_no = next_qp;
7473 AscMemWordCopyPtrToLram(iop_base,
7474 q_addr + ASC_SCSIQ_SGHD_CPY_BEG,
7475 (uchar *)&scsi_sg_q,
7476 sizeof(ASC_SG_LIST_Q) >> 1);
7477
7478 AscMemDWordCopyPtrToLram(iop_base,
7479 q_addr + ASC_SGQ_LIST_BEG,
7480 (uchar *)&sg_head->
7481 sg_list[scsiq->next_sg_index],
7482 sg_list_dwords);
7483
7484 scsiq->next_sg_index += ASC_SG_LIST_PER_Q;
7485
7486 /*
7487 * If the just completed SG queue contained the
7488 * last SG element, then no more SG queues need
7489 * to be written.
7490 */
7491 if (scsi_sg_q.cntl & QCSG_SG_XFER_END) {
7492 break;
7493 }
7494
7495 next_qp = AscReadLramByte(iop_base,
7496 (ushort)(q_addr +
7497 ASC_SCSIQ_B_FWD));
7498 q_addr = ASC_QNO_TO_QADDR(next_qp);
7499 }
7500
7501 /*
7502 * Clear the halt condition so the RISC will be restarted
7503 * after the return.
7504 */
7505 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0);
7506 return (0);
7507 }
7508 #endif /* CC_VERY_LONG_SG_LIST */
7509 return (0);
7510 }
7511
7512 /*
7513 * void
7514 * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words)
7515 *
7516 * Calling/Exit State:
7517 * none
7518 *
7519 * Description:
7520 * Input an ASC_QDONE_INFO structure from the chip
7521 */
7522 static void
7523 DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words)
7524 {
7525 int i;
7526 ushort word;
7527
7528 AscSetChipLramAddr(iop_base, s_addr);
7529 for (i = 0; i < 2 * words; i += 2) {
7530 if (i == 10) {
7531 continue;
7532 }
7533 word = inpw(iop_base + IOP_RAM_DATA);
7534 inbuf[i] = word & 0xff;
7535 inbuf[i + 1] = (word >> 8) & 0xff;
7536 }
7537 ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words);
7538 }
7539
7540 static uchar
7541 _AscCopyLramScsiDoneQ(PortAddr iop_base,
7542 ushort q_addr,
7543 ASC_QDONE_INFO *scsiq, ASC_DCNT max_dma_count)
7544 {
7545 ushort _val;
7546 uchar sg_queue_cnt;
7547
7548 DvcGetQinfo(iop_base,
7549 q_addr + ASC_SCSIQ_DONE_INFO_BEG,
7550 (uchar *)scsiq,
7551 (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2);
7552
7553 _val = AscReadLramWord(iop_base,
7554 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS));
7555 scsiq->q_status = (uchar)_val;
7556 scsiq->q_no = (uchar)(_val >> 8);
7557 _val = AscReadLramWord(iop_base,
7558 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL));
7559 scsiq->cntl = (uchar)_val;
7560 sg_queue_cnt = (uchar)(_val >> 8);
7561 _val = AscReadLramWord(iop_base,
7562 (ushort)(q_addr +
7563 (ushort)ASC_SCSIQ_B_SENSE_LEN));
7564 scsiq->sense_len = (uchar)_val;
7565 scsiq->extra_bytes = (uchar)(_val >> 8);
7566
7567 /*
7568 * Read high word of remain bytes from alternate location.
7569 */
7570 scsiq->remain_bytes = (((ADV_DCNT)AscReadLramWord(iop_base,
7571 (ushort)(q_addr +
7572 (ushort)
7573 ASC_SCSIQ_W_ALT_DC1)))
7574 << 16);
7575 /*
7576 * Read low word of remain bytes from original location.
7577 */
7578 scsiq->remain_bytes += AscReadLramWord(iop_base,
7579 (ushort)(q_addr + (ushort)
7580 ASC_SCSIQ_DW_REMAIN_XFER_CNT));
7581
7582 scsiq->remain_bytes &= max_dma_count;
7583 return sg_queue_cnt;
7584 }
7585
7586 /*
7587 * asc_isr_callback() - Second Level Interrupt Handler called by AscISR().
7588 *
7589 * Interrupt callback function for the Narrow SCSI Asc Library.
7590 */
7591 static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep)
7592 {
7593 struct asc_board *boardp;
7594 struct scsi_cmnd *scp;
7595 struct Scsi_Host *shost;
7596
7597 ASC_DBG(1, "asc_dvc_varp 0x%p, qdonep 0x%p\n", asc_dvc_varp, qdonep);
7598 ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep);
7599
7600 scp = advansys_srb_to_ptr(asc_dvc_varp, qdonep->d2.srb_ptr);
7601 if (!scp)
7602 return;
7603
7604 ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len);
7605
7606 shost = scp->device->host;
7607 ASC_STATS(shost, callback);
7608 ASC_DBG(1, "shost 0x%p\n", shost);
7609
7610 boardp = shost_priv(shost);
7611 BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var);
7612
7613 dma_unmap_single(boardp->dev, scp->SCp.dma_handle,
7614 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
7615 /*
7616 * 'qdonep' contains the command's ending status.
7617 */
7618 switch (qdonep->d3.done_stat) {
7619 case QD_NO_ERROR:
7620 ASC_DBG(2, "QD_NO_ERROR\n");
7621 scp->result = 0;
7622
7623 /*
7624 * Check for an underrun condition.
7625 *
7626 * If there was no error and an underrun condition, then
7627 * return the number of underrun bytes.
7628 */
7629 if (scsi_bufflen(scp) != 0 && qdonep->remain_bytes != 0 &&
7630 qdonep->remain_bytes <= scsi_bufflen(scp)) {
7631 ASC_DBG(1, "underrun condition %u bytes\n",
7632 (unsigned)qdonep->remain_bytes);
7633 scsi_set_resid(scp, qdonep->remain_bytes);
7634 }
7635 break;
7636
7637 case QD_WITH_ERROR:
7638 ASC_DBG(2, "QD_WITH_ERROR\n");
7639 switch (qdonep->d3.host_stat) {
7640 case QHSTA_NO_ERROR:
7641 if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) {
7642 ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
7643 ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
7644 SCSI_SENSE_BUFFERSIZE);
7645 /*
7646 * Note: The 'status_byte()' macro used by
7647 * target drivers defined in scsi.h shifts the
7648 * status byte returned by host drivers right
7649 * by 1 bit. This is why target drivers also
7650 * use right shifted status byte definitions.
7651 * For instance target drivers use
7652 * CHECK_CONDITION, defined to 0x1, instead of
7653 * the SCSI defined check condition value of
7654 * 0x2. Host drivers are supposed to return
7655 * the status byte as it is defined by SCSI.
7656 */
7657 scp->result = DRIVER_BYTE(DRIVER_SENSE) |
7658 STATUS_BYTE(qdonep->d3.scsi_stat);
7659 } else {
7660 scp->result = STATUS_BYTE(qdonep->d3.scsi_stat);
7661 }
7662 break;
7663
7664 default:
7665 /* QHSTA error occurred */
7666 ASC_DBG(1, "host_stat 0x%x\n", qdonep->d3.host_stat);
7667 scp->result = HOST_BYTE(DID_BAD_TARGET);
7668 break;
7669 }
7670 break;
7671
7672 case QD_ABORTED_BY_HOST:
7673 ASC_DBG(1, "QD_ABORTED_BY_HOST\n");
7674 scp->result =
7675 HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3.
7676 scsi_msg) |
7677 STATUS_BYTE(qdonep->d3.scsi_stat);
7678 break;
7679
7680 default:
7681 ASC_DBG(1, "done_stat 0x%x\n", qdonep->d3.done_stat);
7682 scp->result =
7683 HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3.
7684 scsi_msg) |
7685 STATUS_BYTE(qdonep->d3.scsi_stat);
7686 break;
7687 }
7688
7689 /*
7690 * If the 'init_tidmask' bit isn't already set for the target and the
7691 * current request finished normally, then set the bit for the target
7692 * to indicate that a device is present.
7693 */
7694 if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 &&
7695 qdonep->d3.done_stat == QD_NO_ERROR &&
7696 qdonep->d3.host_stat == QHSTA_NO_ERROR) {
7697 boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id);
7698 }
7699
7700 asc_scsi_done(scp);
7701 }
7702
7703 static int AscIsrQDone(ASC_DVC_VAR *asc_dvc)
7704 {
7705 uchar next_qp;
7706 uchar n_q_used;
7707 uchar sg_list_qp;
7708 uchar sg_queue_cnt;
7709 uchar q_cnt;
7710 uchar done_q_tail;
7711 uchar tid_no;
7712 ASC_SCSI_BIT_ID_TYPE scsi_busy;
7713 ASC_SCSI_BIT_ID_TYPE target_id;
7714 PortAddr iop_base;
7715 ushort q_addr;
7716 ushort sg_q_addr;
7717 uchar cur_target_qng;
7718 ASC_QDONE_INFO scsiq_buf;
7719 ASC_QDONE_INFO *scsiq;
7720 int false_overrun;
7721
7722 iop_base = asc_dvc->iop_base;
7723 n_q_used = 1;
7724 scsiq = (ASC_QDONE_INFO *)&scsiq_buf;
7725 done_q_tail = (uchar)AscGetVarDoneQTail(iop_base);
7726 q_addr = ASC_QNO_TO_QADDR(done_q_tail);
7727 next_qp = AscReadLramByte(iop_base,
7728 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD));
7729 if (next_qp != ASC_QLINK_END) {
7730 AscPutVarDoneQTail(iop_base, next_qp);
7731 q_addr = ASC_QNO_TO_QADDR(next_qp);
7732 sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq,
7733 asc_dvc->max_dma_count);
7734 AscWriteLramByte(iop_base,
7735 (ushort)(q_addr +
7736 (ushort)ASC_SCSIQ_B_STATUS),
7737 (uchar)(scsiq->
7738 q_status & (uchar)~(QS_READY |
7739 QS_ABORTED)));
7740 tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix);
7741 target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix);
7742 if ((scsiq->cntl & QC_SG_HEAD) != 0) {
7743 sg_q_addr = q_addr;
7744 sg_list_qp = next_qp;
7745 for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) {
7746 sg_list_qp = AscReadLramByte(iop_base,
7747 (ushort)(sg_q_addr
7748 + (ushort)
7749 ASC_SCSIQ_B_FWD));
7750 sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp);
7751 if (sg_list_qp == ASC_QLINK_END) {
7752 AscSetLibErrorCode(asc_dvc,
7753 ASCQ_ERR_SG_Q_LINKS);
7754 scsiq->d3.done_stat = QD_WITH_ERROR;
7755 scsiq->d3.host_stat =
7756 QHSTA_D_QDONE_SG_LIST_CORRUPTED;
7757 goto FATAL_ERR_QDONE;
7758 }
7759 AscWriteLramByte(iop_base,
7760 (ushort)(sg_q_addr + (ushort)
7761 ASC_SCSIQ_B_STATUS),
7762 QS_FREE);
7763 }
7764 n_q_used = sg_queue_cnt + 1;
7765 AscPutVarDoneQTail(iop_base, sg_list_qp);
7766 }
7767 if (asc_dvc->queue_full_or_busy & target_id) {
7768 cur_target_qng = AscReadLramByte(iop_base,
7769 (ushort)((ushort)
7770 ASC_QADR_BEG
7771 + (ushort)
7772 scsiq->d2.
7773 target_ix));
7774 if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) {
7775 scsi_busy = AscReadLramByte(iop_base, (ushort)
7776 ASCV_SCSIBUSY_B);
7777 scsi_busy &= ~target_id;
7778 AscWriteLramByte(iop_base,
7779 (ushort)ASCV_SCSIBUSY_B,
7780 scsi_busy);
7781 asc_dvc->queue_full_or_busy &= ~target_id;
7782 }
7783 }
7784 if (asc_dvc->cur_total_qng >= n_q_used) {
7785 asc_dvc->cur_total_qng -= n_q_used;
7786 if (asc_dvc->cur_dvc_qng[tid_no] != 0) {
7787 asc_dvc->cur_dvc_qng[tid_no]--;
7788 }
7789 } else {
7790 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG);
7791 scsiq->d3.done_stat = QD_WITH_ERROR;
7792 goto FATAL_ERR_QDONE;
7793 }
7794 if ((scsiq->d2.srb_ptr == 0UL) ||
7795 ((scsiq->q_status & QS_ABORTED) != 0)) {
7796 return (0x11);
7797 } else if (scsiq->q_status == QS_DONE) {
7798 false_overrun = FALSE;
7799 if (scsiq->extra_bytes != 0) {
7800 scsiq->remain_bytes +=
7801 (ADV_DCNT)scsiq->extra_bytes;
7802 }
7803 if (scsiq->d3.done_stat == QD_WITH_ERROR) {
7804 if (scsiq->d3.host_stat ==
7805 QHSTA_M_DATA_OVER_RUN) {
7806 if ((scsiq->
7807 cntl & (QC_DATA_IN | QC_DATA_OUT))
7808 == 0) {
7809 scsiq->d3.done_stat =
7810 QD_NO_ERROR;
7811 scsiq->d3.host_stat =
7812 QHSTA_NO_ERROR;
7813 } else if (false_overrun) {
7814 scsiq->d3.done_stat =
7815 QD_NO_ERROR;
7816 scsiq->d3.host_stat =
7817 QHSTA_NO_ERROR;
7818 }
7819 } else if (scsiq->d3.host_stat ==
7820 QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) {
7821 AscStopChip(iop_base);
7822 AscSetChipControl(iop_base,
7823 (uchar)(CC_SCSI_RESET
7824 | CC_HALT));
7825 udelay(60);
7826 AscSetChipControl(iop_base, CC_HALT);
7827 AscSetChipStatus(iop_base,
7828 CIW_CLR_SCSI_RESET_INT);
7829 AscSetChipStatus(iop_base, 0);
7830 AscSetChipControl(iop_base, 0);
7831 }
7832 }
7833 if ((scsiq->cntl & QC_NO_CALLBACK) == 0) {
7834 asc_isr_callback(asc_dvc, scsiq);
7835 } else {
7836 if ((AscReadLramByte(iop_base,
7837 (ushort)(q_addr + (ushort)
7838 ASC_SCSIQ_CDB_BEG))
7839 == START_STOP)) {
7840 asc_dvc->unit_not_ready &= ~target_id;
7841 if (scsiq->d3.done_stat != QD_NO_ERROR) {
7842 asc_dvc->start_motor &=
7843 ~target_id;
7844 }
7845 }
7846 }
7847 return (1);
7848 } else {
7849 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS);
7850 FATAL_ERR_QDONE:
7851 if ((scsiq->cntl & QC_NO_CALLBACK) == 0) {
7852 asc_isr_callback(asc_dvc, scsiq);
7853 }
7854 return (0x80);
7855 }
7856 }
7857 return (0);
7858 }
7859
7860 static int AscISR(ASC_DVC_VAR *asc_dvc)
7861 {
7862 ASC_CS_TYPE chipstat;
7863 PortAddr iop_base;
7864 ushort saved_ram_addr;
7865 uchar ctrl_reg;
7866 uchar saved_ctrl_reg;
7867 int int_pending;
7868 int status;
7869 uchar host_flag;
7870
7871 iop_base = asc_dvc->iop_base;
7872 int_pending = FALSE;
7873
7874 if (AscIsIntPending(iop_base) == 0)
7875 return int_pending;
7876
7877 if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) {
7878 return ERR;
7879 }
7880 if (asc_dvc->in_critical_cnt != 0) {
7881 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL);
7882 return ERR;
7883 }
7884 if (asc_dvc->is_in_int) {
7885 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY);
7886 return ERR;
7887 }
7888 asc_dvc->is_in_int = TRUE;
7889 ctrl_reg = AscGetChipControl(iop_base);
7890 saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET |
7891 CC_SINGLE_STEP | CC_DIAG | CC_TEST));
7892 chipstat = AscGetChipStatus(iop_base);
7893 if (chipstat & CSW_SCSI_RESET_LATCH) {
7894 if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) {
7895 int i = 10;
7896 int_pending = TRUE;
7897 asc_dvc->sdtr_done = 0;
7898 saved_ctrl_reg &= (uchar)(~CC_HALT);
7899 while ((AscGetChipStatus(iop_base) &
7900 CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) {
7901 mdelay(100);
7902 }
7903 AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT));
7904 AscSetChipControl(iop_base, CC_HALT);
7905 AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT);
7906 AscSetChipStatus(iop_base, 0);
7907 chipstat = AscGetChipStatus(iop_base);
7908 }
7909 }
7910 saved_ram_addr = AscGetChipLramAddr(iop_base);
7911 host_flag = AscReadLramByte(iop_base,
7912 ASCV_HOST_FLAG_B) &
7913 (uchar)(~ASC_HOST_FLAG_IN_ISR);
7914 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B,
7915 (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR));
7916 if ((chipstat & CSW_INT_PENDING) || (int_pending)) {
7917 AscAckInterrupt(iop_base);
7918 int_pending = TRUE;
7919 if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) {
7920 if (AscIsrChipHalted(asc_dvc) == ERR) {
7921 goto ISR_REPORT_QDONE_FATAL_ERROR;
7922 } else {
7923 saved_ctrl_reg &= (uchar)(~CC_HALT);
7924 }
7925 } else {
7926 ISR_REPORT_QDONE_FATAL_ERROR:
7927 if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) {
7928 while (((status =
7929 AscIsrQDone(asc_dvc)) & 0x01) != 0) {
7930 }
7931 } else {
7932 do {
7933 if ((status =
7934 AscIsrQDone(asc_dvc)) == 1) {
7935 break;
7936 }
7937 } while (status == 0x11);
7938 }
7939 if ((status & 0x80) != 0)
7940 int_pending = ERR;
7941 }
7942 }
7943 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag);
7944 AscSetChipLramAddr(iop_base, saved_ram_addr);
7945 AscSetChipControl(iop_base, saved_ctrl_reg);
7946 asc_dvc->is_in_int = FALSE;
7947 return int_pending;
7948 }
7949
7950 /*
7951 * advansys_reset()
7952 *
7953 * Reset the bus associated with the command 'scp'.
7954 *
7955 * This function runs its own thread. Interrupts must be blocked but
7956 * sleeping is allowed and no locking other than for host structures is
7957 * required. Returns SUCCESS or FAILED.
7958 */
7959 static int advansys_reset(struct scsi_cmnd *scp)
7960 {
7961 struct Scsi_Host *shost = scp->device->host;
7962 struct asc_board *boardp = shost_priv(shost);
7963 unsigned long flags;
7964 int status;
7965 int ret = SUCCESS;
7966
7967 ASC_DBG(1, "0x%p\n", scp);
7968
7969 ASC_STATS(shost, reset);
7970
7971 scmd_printk(KERN_INFO, scp, "SCSI bus reset started...\n");
7972
7973 if (ASC_NARROW_BOARD(boardp)) {
7974 ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var;
7975
7976 /* Reset the chip and SCSI bus. */
7977 ASC_DBG(1, "before AscInitAsc1000Driver()\n");
7978 status = AscInitAsc1000Driver(asc_dvc);
7979
7980 /* Refer to ASC_IERR_* definitions for meaning of 'err_code'. */
7981 if (asc_dvc->err_code) {
7982 scmd_printk(KERN_INFO, scp, "SCSI bus reset error: "
7983 "0x%x\n", asc_dvc->err_code);
7984 ret = FAILED;
7985 } else if (status) {
7986 scmd_printk(KERN_INFO, scp, "SCSI bus reset warning: "
7987 "0x%x\n", status);
7988 } else {
7989 scmd_printk(KERN_INFO, scp, "SCSI bus reset "
7990 "successful\n");
7991 }
7992
7993 ASC_DBG(1, "after AscInitAsc1000Driver()\n");
7994 spin_lock_irqsave(shost->host_lock, flags);
7995 } else {
7996 /*
7997 * If the suggest reset bus flags are set, then reset the bus.
7998 * Otherwise only reset the device.
7999 */
8000 ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var;
8001
8002 /*
8003 * Reset the target's SCSI bus.
8004 */
8005 ASC_DBG(1, "before AdvResetChipAndSB()\n");
8006 switch (AdvResetChipAndSB(adv_dvc)) {
8007 case ASC_TRUE:
8008 scmd_printk(KERN_INFO, scp, "SCSI bus reset "
8009 "successful\n");
8010 break;
8011 case ASC_FALSE:
8012 default:
8013 scmd_printk(KERN_INFO, scp, "SCSI bus reset error\n");
8014 ret = FAILED;
8015 break;
8016 }
8017 spin_lock_irqsave(shost->host_lock, flags);
8018 AdvISR(adv_dvc);
8019 }
8020
8021 /* Save the time of the most recently completed reset. */
8022 boardp->last_reset = jiffies;
8023 spin_unlock_irqrestore(shost->host_lock, flags);
8024
8025 ASC_DBG(1, "ret %d\n", ret);
8026
8027 return ret;
8028 }
8029
8030 /*
8031 * advansys_biosparam()
8032 *
8033 * Translate disk drive geometry if the "BIOS greater than 1 GB"
8034 * support is enabled for a drive.
8035 *
8036 * ip (information pointer) is an int array with the following definition:
8037 * ip[0]: heads
8038 * ip[1]: sectors
8039 * ip[2]: cylinders
8040 */
8041 static int
8042 advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev,
8043 sector_t capacity, int ip[])
8044 {
8045 struct asc_board *boardp = shost_priv(sdev->host);
8046
8047 ASC_DBG(1, "begin\n");
8048 ASC_STATS(sdev->host, biosparam);
8049 if (ASC_NARROW_BOARD(boardp)) {
8050 if ((boardp->dvc_var.asc_dvc_var.dvc_cntl &
8051 ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) {
8052 ip[0] = 255;
8053 ip[1] = 63;
8054 } else {
8055 ip[0] = 64;
8056 ip[1] = 32;
8057 }
8058 } else {
8059 if ((boardp->dvc_var.adv_dvc_var.bios_ctrl &
8060 BIOS_CTRL_EXTENDED_XLAT) && capacity > 0x200000) {
8061 ip[0] = 255;
8062 ip[1] = 63;
8063 } else {
8064 ip[0] = 64;
8065 ip[1] = 32;
8066 }
8067 }
8068 ip[2] = (unsigned long)capacity / (ip[0] * ip[1]);
8069 ASC_DBG(1, "end\n");
8070 return 0;
8071 }
8072
8073 /*
8074 * First-level interrupt handler.
8075 *
8076 * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host.
8077 */
8078 static irqreturn_t advansys_interrupt(int irq, void *dev_id)
8079 {
8080 struct Scsi_Host *shost = dev_id;
8081 struct asc_board *boardp = shost_priv(shost);
8082 irqreturn_t result = IRQ_NONE;
8083
8084 ASC_DBG(2, "boardp 0x%p\n", boardp);
8085 spin_lock(shost->host_lock);
8086 if (ASC_NARROW_BOARD(boardp)) {
8087 if (AscIsIntPending(shost->io_port)) {
8088 result = IRQ_HANDLED;
8089 ASC_STATS(shost, interrupt);
8090 ASC_DBG(1, "before AscISR()\n");
8091 AscISR(&boardp->dvc_var.asc_dvc_var);
8092 }
8093 } else {
8094 ASC_DBG(1, "before AdvISR()\n");
8095 if (AdvISR(&boardp->dvc_var.adv_dvc_var)) {
8096 result = IRQ_HANDLED;
8097 ASC_STATS(shost, interrupt);
8098 }
8099 }
8100 spin_unlock(shost->host_lock);
8101
8102 ASC_DBG(1, "end\n");
8103 return result;
8104 }
8105
8106 static int AscHostReqRiscHalt(PortAddr iop_base)
8107 {
8108 int count = 0;
8109 int sta = 0;
8110 uchar saved_stop_code;
8111
8112 if (AscIsChipHalted(iop_base))
8113 return (1);
8114 saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B);
8115 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B,
8116 ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP);
8117 do {
8118 if (AscIsChipHalted(iop_base)) {
8119 sta = 1;
8120 break;
8121 }
8122 mdelay(100);
8123 } while (count++ < 20);
8124 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code);
8125 return (sta);
8126 }
8127
8128 static int
8129 AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data)
8130 {
8131 int sta = FALSE;
8132
8133 if (AscHostReqRiscHalt(iop_base)) {
8134 sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data);
8135 AscStartChip(iop_base);
8136 }
8137 return sta;
8138 }
8139
8140 static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev)
8141 {
8142 char type = sdev->type;
8143 ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id;
8144
8145 if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN))
8146 return;
8147 if (asc_dvc->init_sdtr & tid_bits)
8148 return;
8149
8150 if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0))
8151 asc_dvc->pci_fix_asyn_xfer_always |= tid_bits;
8152
8153 asc_dvc->pci_fix_asyn_xfer |= tid_bits;
8154 if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) ||
8155 (type == TYPE_ROM) || (type == TYPE_TAPE))
8156 asc_dvc->pci_fix_asyn_xfer &= ~tid_bits;
8157
8158 if (asc_dvc->pci_fix_asyn_xfer & tid_bits)
8159 AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id,
8160 ASYN_SDTR_DATA_FIX_PCI_REV_AB);
8161 }
8162
8163 static void
8164 advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc)
8165 {
8166 ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id;
8167 ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng;
8168
8169 if (sdev->lun == 0) {
8170 ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr;
8171 if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) {
8172 asc_dvc->init_sdtr |= tid_bit;
8173 } else {
8174 asc_dvc->init_sdtr &= ~tid_bit;
8175 }
8176
8177 if (orig_init_sdtr != asc_dvc->init_sdtr)
8178 AscAsyncFix(asc_dvc, sdev);
8179 }
8180
8181 if (sdev->tagged_supported) {
8182 if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) {
8183 if (sdev->lun == 0) {
8184 asc_dvc->cfg->can_tagged_qng |= tid_bit;
8185 asc_dvc->use_tagged_qng |= tid_bit;
8186 }
8187 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG,
8188 asc_dvc->max_dvc_qng[sdev->id]);
8189 }
8190 } else {
8191 if (sdev->lun == 0) {
8192 asc_dvc->cfg->can_tagged_qng &= ~tid_bit;
8193 asc_dvc->use_tagged_qng &= ~tid_bit;
8194 }
8195 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
8196 }
8197
8198 if ((sdev->lun == 0) &&
8199 (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) {
8200 AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B,
8201 asc_dvc->cfg->disc_enable);
8202 AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B,
8203 asc_dvc->use_tagged_qng);
8204 AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B,
8205 asc_dvc->cfg->can_tagged_qng);
8206
8207 asc_dvc->max_dvc_qng[sdev->id] =
8208 asc_dvc->cfg->max_tag_qng[sdev->id];
8209 AscWriteLramByte(asc_dvc->iop_base,
8210 (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id),
8211 asc_dvc->max_dvc_qng[sdev->id]);
8212 }
8213 }
8214
8215 /*
8216 * Wide Transfers
8217 *
8218 * If the EEPROM enabled WDTR for the device and the device supports wide
8219 * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and
8220 * write the new value to the microcode.
8221 */
8222 static void
8223 advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask)
8224 {
8225 unsigned short cfg_word;
8226 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word);
8227 if ((cfg_word & tidmask) != 0)
8228 return;
8229
8230 cfg_word |= tidmask;
8231 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word);
8232
8233 /*
8234 * Clear the microcode SDTR and WDTR negotiation done indicators for
8235 * the target to cause it to negotiate with the new setting set above.
8236 * WDTR when accepted causes the target to enter asynchronous mode, so
8237 * SDTR must be negotiated.
8238 */
8239 AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);
8240 cfg_word &= ~tidmask;
8241 AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);
8242 AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word);
8243 cfg_word &= ~tidmask;
8244 AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word);
8245 }
8246
8247 /*
8248 * Synchronous Transfers
8249 *
8250 * If the EEPROM enabled SDTR for the device and the device
8251 * supports synchronous transfers, then turn on the device's
8252 * 'sdtr_able' bit. Write the new value to the microcode.
8253 */
8254 static void
8255 advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask)
8256 {
8257 unsigned short cfg_word;
8258 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word);
8259 if ((cfg_word & tidmask) != 0)
8260 return;
8261
8262 cfg_word |= tidmask;
8263 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word);
8264
8265 /*
8266 * Clear the microcode "SDTR negotiation" done indicator for the
8267 * target to cause it to negotiate with the new setting set above.
8268 */
8269 AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);
8270 cfg_word &= ~tidmask;
8271 AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);
8272 }
8273
8274 /*
8275 * PPR (Parallel Protocol Request) Capable
8276 *
8277 * If the device supports DT mode, then it must be PPR capable.
8278 * The PPR message will be used in place of the SDTR and WDTR
8279 * messages to negotiate synchronous speed and offset, transfer
8280 * width, and protocol options.
8281 */
8282 static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc,
8283 AdvPortAddr iop_base, unsigned short tidmask)
8284 {
8285 AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able);
8286 adv_dvc->ppr_able |= tidmask;
8287 AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able);
8288 }
8289
8290 static void
8291 advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc)
8292 {
8293 AdvPortAddr iop_base = adv_dvc->iop_base;
8294 unsigned short tidmask = 1 << sdev->id;
8295
8296 if (sdev->lun == 0) {
8297 /*
8298 * Handle WDTR, SDTR, and Tag Queuing. If the feature
8299 * is enabled in the EEPROM and the device supports the
8300 * feature, then enable it in the microcode.
8301 */
8302
8303 if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr)
8304 advansys_wide_enable_wdtr(iop_base, tidmask);
8305 if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr)
8306 advansys_wide_enable_sdtr(iop_base, tidmask);
8307 if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr)
8308 advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask);
8309
8310 /*
8311 * Tag Queuing is disabled for the BIOS which runs in polled
8312 * mode and would see no benefit from Tag Queuing. Also by
8313 * disabling Tag Queuing in the BIOS devices with Tag Queuing
8314 * bugs will at least work with the BIOS.
8315 */
8316 if ((adv_dvc->tagqng_able & tidmask) &&
8317 sdev->tagged_supported) {
8318 unsigned short cfg_word;
8319 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word);
8320 cfg_word |= tidmask;
8321 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE,
8322 cfg_word);
8323 AdvWriteByteLram(iop_base,
8324 ASC_MC_NUMBER_OF_MAX_CMD + sdev->id,
8325 adv_dvc->max_dvc_qng);
8326 }
8327 }
8328
8329 if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) {
8330 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG,
8331 adv_dvc->max_dvc_qng);
8332 } else {
8333 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
8334 }
8335 }
8336
8337 /*
8338 * Set the number of commands to queue per device for the
8339 * specified host adapter.
8340 */
8341 static int advansys_slave_configure(struct scsi_device *sdev)
8342 {
8343 struct asc_board *boardp = shost_priv(sdev->host);
8344
8345 if (ASC_NARROW_BOARD(boardp))
8346 advansys_narrow_slave_configure(sdev,
8347 &boardp->dvc_var.asc_dvc_var);
8348 else
8349 advansys_wide_slave_configure(sdev,
8350 &boardp->dvc_var.adv_dvc_var);
8351
8352 return 0;
8353 }
8354
8355 static __le32 advansys_get_sense_buffer_dma(struct scsi_cmnd *scp)
8356 {
8357 struct asc_board *board = shost_priv(scp->device->host);
8358 scp->SCp.dma_handle = dma_map_single(board->dev, scp->sense_buffer,
8359 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
8360 dma_cache_sync(board->dev, scp->sense_buffer,
8361 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
8362 return cpu_to_le32(scp->SCp.dma_handle);
8363 }
8364
8365 static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp,
8366 struct asc_scsi_q *asc_scsi_q)
8367 {
8368 struct asc_dvc_var *asc_dvc = &boardp->dvc_var.asc_dvc_var;
8369 int use_sg;
8370
8371 memset(asc_scsi_q, 0, sizeof(*asc_scsi_q));
8372
8373 /*
8374 * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'.
8375 */
8376 asc_scsi_q->q2.srb_ptr = advansys_ptr_to_srb(asc_dvc, scp);
8377 if (asc_scsi_q->q2.srb_ptr == BAD_SRB) {
8378 scp->result = HOST_BYTE(DID_SOFT_ERROR);
8379 return ASC_ERROR;
8380 }
8381
8382 /*
8383 * Build the ASC_SCSI_Q request.
8384 */
8385 asc_scsi_q->cdbptr = &scp->cmnd[0];
8386 asc_scsi_q->q2.cdb_len = scp->cmd_len;
8387 asc_scsi_q->q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id);
8388 asc_scsi_q->q1.target_lun = scp->device->lun;
8389 asc_scsi_q->q2.target_ix =
8390 ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun);
8391 asc_scsi_q->q1.sense_addr = advansys_get_sense_buffer_dma(scp);
8392 asc_scsi_q->q1.sense_len = SCSI_SENSE_BUFFERSIZE;
8393
8394 /*
8395 * If there are any outstanding requests for the current target,
8396 * then every 255th request send an ORDERED request. This heuristic
8397 * tries to retain the benefit of request sorting while preventing
8398 * request starvation. 255 is the max number of tags or pending commands
8399 * a device may have outstanding.
8400 *
8401 * The request count is incremented below for every successfully
8402 * started request.
8403 *
8404 */
8405 if ((asc_dvc->cur_dvc_qng[scp->device->id] > 0) &&
8406 (boardp->reqcnt[scp->device->id] % 255) == 0) {
8407 asc_scsi_q->q2.tag_code = MSG_ORDERED_TAG;
8408 } else {
8409 asc_scsi_q->q2.tag_code = MSG_SIMPLE_TAG;
8410 }
8411
8412 /* Build ASC_SCSI_Q */
8413 use_sg = scsi_dma_map(scp);
8414 if (use_sg != 0) {
8415 int sgcnt;
8416 struct scatterlist *slp;
8417 struct asc_sg_head *asc_sg_head;
8418
8419 if (use_sg > scp->device->host->sg_tablesize) {
8420 scmd_printk(KERN_ERR, scp, "use_sg %d > "
8421 "sg_tablesize %d\n", use_sg,
8422 scp->device->host->sg_tablesize);
8423 scsi_dma_unmap(scp);
8424 scp->result = HOST_BYTE(DID_ERROR);
8425 return ASC_ERROR;
8426 }
8427
8428 asc_sg_head = kzalloc(sizeof(asc_scsi_q->sg_head) +
8429 use_sg * sizeof(struct asc_sg_list), GFP_ATOMIC);
8430 if (!asc_sg_head) {
8431 scsi_dma_unmap(scp);
8432 scp->result = HOST_BYTE(DID_SOFT_ERROR);
8433 return ASC_ERROR;
8434 }
8435
8436 asc_scsi_q->q1.cntl |= QC_SG_HEAD;
8437 asc_scsi_q->sg_head = asc_sg_head;
8438 asc_scsi_q->q1.data_cnt = 0;
8439 asc_scsi_q->q1.data_addr = 0;
8440 /* This is a byte value, otherwise it would need to be swapped. */
8441 asc_sg_head->entry_cnt = asc_scsi_q->q1.sg_queue_cnt = use_sg;
8442 ASC_STATS_ADD(scp->device->host, xfer_elem,
8443 asc_sg_head->entry_cnt);
8444
8445 /*
8446 * Convert scatter-gather list into ASC_SG_HEAD list.
8447 */
8448 scsi_for_each_sg(scp, slp, use_sg, sgcnt) {
8449 asc_sg_head->sg_list[sgcnt].addr =
8450 cpu_to_le32(sg_dma_address(slp));
8451 asc_sg_head->sg_list[sgcnt].bytes =
8452 cpu_to_le32(sg_dma_len(slp));
8453 ASC_STATS_ADD(scp->device->host, xfer_sect,
8454 DIV_ROUND_UP(sg_dma_len(slp), 512));
8455 }
8456 }
8457
8458 ASC_STATS(scp->device->host, xfer_cnt);
8459
8460 ASC_DBG_PRT_ASC_SCSI_Q(2, asc_scsi_q);
8461 ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len);
8462
8463 return ASC_NOERROR;
8464 }
8465
8466 /*
8467 * Build scatter-gather list for Adv Library (Wide Board).
8468 *
8469 * Additional ADV_SG_BLOCK structures will need to be allocated
8470 * if the total number of scatter-gather elements exceeds
8471 * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are
8472 * assumed to be physically contiguous.
8473 *
8474 * Return:
8475 * ADV_SUCCESS(1) - SG List successfully created
8476 * ADV_ERROR(-1) - SG List creation failed
8477 */
8478 static int
8479 adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, struct scsi_cmnd *scp,
8480 int use_sg)
8481 {
8482 adv_sgblk_t *sgblkp;
8483 ADV_SCSI_REQ_Q *scsiqp;
8484 struct scatterlist *slp;
8485 int sg_elem_cnt;
8486 ADV_SG_BLOCK *sg_block, *prev_sg_block;
8487 ADV_PADDR sg_block_paddr;
8488 int i;
8489
8490 scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q);
8491 slp = scsi_sglist(scp);
8492 sg_elem_cnt = use_sg;
8493 prev_sg_block = NULL;
8494 reqp->sgblkp = NULL;
8495
8496 for (;;) {
8497 /*
8498 * Allocate a 'adv_sgblk_t' structure from the board free
8499 * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK
8500 * (15) scatter-gather elements.
8501 */
8502 if ((sgblkp = boardp->adv_sgblkp) == NULL) {
8503 ASC_DBG(1, "no free adv_sgblk_t\n");
8504 ASC_STATS(scp->device->host, adv_build_nosg);
8505
8506 /*
8507 * Allocation failed. Free 'adv_sgblk_t' structures
8508 * already allocated for the request.
8509 */
8510 while ((sgblkp = reqp->sgblkp) != NULL) {
8511 /* Remove 'sgblkp' from the request list. */
8512 reqp->sgblkp = sgblkp->next_sgblkp;
8513
8514 /* Add 'sgblkp' to the board free list. */
8515 sgblkp->next_sgblkp = boardp->adv_sgblkp;
8516 boardp->adv_sgblkp = sgblkp;
8517 }
8518 return ASC_BUSY;
8519 }
8520
8521 /* Complete 'adv_sgblk_t' board allocation. */
8522 boardp->adv_sgblkp = sgblkp->next_sgblkp;
8523 sgblkp->next_sgblkp = NULL;
8524
8525 /*
8526 * Get 8 byte aligned virtual and physical addresses
8527 * for the allocated ADV_SG_BLOCK structure.
8528 */
8529 sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block);
8530 sg_block_paddr = virt_to_bus(sg_block);
8531
8532 /*
8533 * Check if this is the first 'adv_sgblk_t' for the
8534 * request.
8535 */
8536 if (reqp->sgblkp == NULL) {
8537 /* Request's first scatter-gather block. */
8538 reqp->sgblkp = sgblkp;
8539
8540 /*
8541 * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical
8542 * address pointers.
8543 */
8544 scsiqp->sg_list_ptr = sg_block;
8545 scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr);
8546 } else {
8547 /* Request's second or later scatter-gather block. */
8548 sgblkp->next_sgblkp = reqp->sgblkp;
8549 reqp->sgblkp = sgblkp;
8550
8551 /*
8552 * Point the previous ADV_SG_BLOCK structure to
8553 * the newly allocated ADV_SG_BLOCK structure.
8554 */
8555 prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr);
8556 }
8557
8558 for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) {
8559 sg_block->sg_list[i].sg_addr =
8560 cpu_to_le32(sg_dma_address(slp));
8561 sg_block->sg_list[i].sg_count =
8562 cpu_to_le32(sg_dma_len(slp));
8563 ASC_STATS_ADD(scp->device->host, xfer_sect,
8564 DIV_ROUND_UP(sg_dma_len(slp), 512));
8565
8566 if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */
8567 sg_block->sg_cnt = i + 1;
8568 sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */
8569 return ADV_SUCCESS;
8570 }
8571 slp++;
8572 }
8573 sg_block->sg_cnt = NO_OF_SG_PER_BLOCK;
8574 prev_sg_block = sg_block;
8575 }
8576 }
8577
8578 /*
8579 * Build a request structure for the Adv Library (Wide Board).
8580 *
8581 * If an adv_req_t can not be allocated to issue the request,
8582 * then return ASC_BUSY. If an error occurs, then return ASC_ERROR.
8583 *
8584 * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the
8585 * microcode for DMA addresses or math operations are byte swapped
8586 * to little-endian order.
8587 */
8588 static int
8589 adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp,
8590 ADV_SCSI_REQ_Q **adv_scsiqpp)
8591 {
8592 adv_req_t *reqp;
8593 ADV_SCSI_REQ_Q *scsiqp;
8594 int i;
8595 int ret;
8596 int use_sg;
8597
8598 /*
8599 * Allocate an adv_req_t structure from the board to execute
8600 * the command.
8601 */
8602 if (boardp->adv_reqp == NULL) {
8603 ASC_DBG(1, "no free adv_req_t\n");
8604 ASC_STATS(scp->device->host, adv_build_noreq);
8605 return ASC_BUSY;
8606 } else {
8607 reqp = boardp->adv_reqp;
8608 boardp->adv_reqp = reqp->next_reqp;
8609 reqp->next_reqp = NULL;
8610 }
8611
8612 /*
8613 * Get 32-byte aligned ADV_SCSI_REQ_Q and ADV_SG_BLOCK pointers.
8614 */
8615 scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q);
8616
8617 /*
8618 * Initialize the structure.
8619 */
8620 scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0;
8621
8622 /*
8623 * Set the ADV_SCSI_REQ_Q 'srb_ptr' to point to the adv_req_t structure.
8624 */
8625 scsiqp->srb_ptr = ADV_VADDR_TO_U32(reqp);
8626
8627 /*
8628 * Set the adv_req_t 'cmndp' to point to the struct scsi_cmnd structure.
8629 */
8630 reqp->cmndp = scp;
8631
8632 /*
8633 * Build the ADV_SCSI_REQ_Q request.
8634 */
8635
8636 /* Set CDB length and copy it to the request structure. */
8637 scsiqp->cdb_len = scp->cmd_len;
8638 /* Copy first 12 CDB bytes to cdb[]. */
8639 for (i = 0; i < scp->cmd_len && i < 12; i++) {
8640 scsiqp->cdb[i] = scp->cmnd[i];
8641 }
8642 /* Copy last 4 CDB bytes, if present, to cdb16[]. */
8643 for (; i < scp->cmd_len; i++) {
8644 scsiqp->cdb16[i - 12] = scp->cmnd[i];
8645 }
8646
8647 scsiqp->target_id = scp->device->id;
8648 scsiqp->target_lun = scp->device->lun;
8649
8650 scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0]));
8651 scsiqp->sense_len = SCSI_SENSE_BUFFERSIZE;
8652
8653 /* Build ADV_SCSI_REQ_Q */
8654
8655 use_sg = scsi_dma_map(scp);
8656 if (use_sg == 0) {
8657 /* Zero-length transfer */
8658 reqp->sgblkp = NULL;
8659 scsiqp->data_cnt = 0;
8660 scsiqp->vdata_addr = NULL;
8661
8662 scsiqp->data_addr = 0;
8663 scsiqp->sg_list_ptr = NULL;
8664 scsiqp->sg_real_addr = 0;
8665 } else {
8666 if (use_sg > ADV_MAX_SG_LIST) {
8667 scmd_printk(KERN_ERR, scp, "use_sg %d > "
8668 "ADV_MAX_SG_LIST %d\n", use_sg,
8669 scp->device->host->sg_tablesize);
8670 scsi_dma_unmap(scp);
8671 scp->result = HOST_BYTE(DID_ERROR);
8672
8673 /*
8674 * Free the 'adv_req_t' structure by adding it back
8675 * to the board free list.
8676 */
8677 reqp->next_reqp = boardp->adv_reqp;
8678 boardp->adv_reqp = reqp;
8679
8680 return ASC_ERROR;
8681 }
8682
8683 scsiqp->data_cnt = cpu_to_le32(scsi_bufflen(scp));
8684
8685 ret = adv_get_sglist(boardp, reqp, scp, use_sg);
8686 if (ret != ADV_SUCCESS) {
8687 /*
8688 * Free the adv_req_t structure by adding it back to
8689 * the board free list.
8690 */
8691 reqp->next_reqp = boardp->adv_reqp;
8692 boardp->adv_reqp = reqp;
8693
8694 return ret;
8695 }
8696
8697 ASC_STATS_ADD(scp->device->host, xfer_elem, use_sg);
8698 }
8699
8700 ASC_STATS(scp->device->host, xfer_cnt);
8701
8702 ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp);
8703 ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len);
8704
8705 *adv_scsiqpp = scsiqp;
8706
8707 return ASC_NOERROR;
8708 }
8709
8710 static int AscSgListToQueue(int sg_list)
8711 {
8712 int n_sg_list_qs;
8713
8714 n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q);
8715 if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0)
8716 n_sg_list_qs++;
8717 return n_sg_list_qs + 1;
8718 }
8719
8720 static uint
8721 AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs)
8722 {
8723 uint cur_used_qs;
8724 uint cur_free_qs;
8725 ASC_SCSI_BIT_ID_TYPE target_id;
8726 uchar tid_no;
8727
8728 target_id = ASC_TIX_TO_TARGET_ID(target_ix);
8729 tid_no = ASC_TIX_TO_TID(target_ix);
8730 if ((asc_dvc->unit_not_ready & target_id) ||
8731 (asc_dvc->queue_full_or_busy & target_id)) {
8732 return 0;
8733 }
8734 if (n_qs == 1) {
8735 cur_used_qs = (uint) asc_dvc->cur_total_qng +
8736 (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q;
8737 } else {
8738 cur_used_qs = (uint) asc_dvc->cur_total_qng +
8739 (uint) ASC_MIN_FREE_Q;
8740 }
8741 if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) {
8742 cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs;
8743 if (asc_dvc->cur_dvc_qng[tid_no] >=
8744 asc_dvc->max_dvc_qng[tid_no]) {
8745 return 0;
8746 }
8747 return cur_free_qs;
8748 }
8749 if (n_qs > 1) {
8750 if ((n_qs > asc_dvc->last_q_shortage)
8751 && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) {
8752 asc_dvc->last_q_shortage = n_qs;
8753 }
8754 }
8755 return 0;
8756 }
8757
8758 static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head)
8759 {
8760 ushort q_addr;
8761 uchar next_qp;
8762 uchar q_status;
8763
8764 q_addr = ASC_QNO_TO_QADDR(free_q_head);
8765 q_status = (uchar)AscReadLramByte(iop_base,
8766 (ushort)(q_addr +
8767 ASC_SCSIQ_B_STATUS));
8768 next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD));
8769 if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END))
8770 return next_qp;
8771 return ASC_QLINK_END;
8772 }
8773
8774 static uchar
8775 AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q)
8776 {
8777 uchar i;
8778
8779 for (i = 0; i < n_free_q; i++) {
8780 free_q_head = AscAllocFreeQueue(iop_base, free_q_head);
8781 if (free_q_head == ASC_QLINK_END)
8782 break;
8783 }
8784 return free_q_head;
8785 }
8786
8787 /*
8788 * void
8789 * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words)
8790 *
8791 * Calling/Exit State:
8792 * none
8793 *
8794 * Description:
8795 * Output an ASC_SCSI_Q structure to the chip
8796 */
8797 static void
8798 DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words)
8799 {
8800 int i;
8801
8802 ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words);
8803 AscSetChipLramAddr(iop_base, s_addr);
8804 for (i = 0; i < 2 * words; i += 2) {
8805 if (i == 4 || i == 20) {
8806 continue;
8807 }
8808 outpw(iop_base + IOP_RAM_DATA,
8809 ((ushort)outbuf[i + 1] << 8) | outbuf[i]);
8810 }
8811 }
8812
8813 static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no)
8814 {
8815 ushort q_addr;
8816 uchar tid_no;
8817 uchar sdtr_data;
8818 uchar syn_period_ix;
8819 uchar syn_offset;
8820 PortAddr iop_base;
8821
8822 iop_base = asc_dvc->iop_base;
8823 if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) &&
8824 ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) {
8825 tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix);
8826 sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no);
8827 syn_period_ix =
8828 (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1);
8829 syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET;
8830 AscMsgOutSDTR(asc_dvc,
8831 asc_dvc->sdtr_period_tbl[syn_period_ix],
8832 syn_offset);
8833 scsiq->q1.cntl |= QC_MSG_OUT;
8834 }
8835 q_addr = ASC_QNO_TO_QADDR(q_no);
8836 if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) {
8837 scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG;
8838 }
8839 scsiq->q1.status = QS_FREE;
8840 AscMemWordCopyPtrToLram(iop_base,
8841 q_addr + ASC_SCSIQ_CDB_BEG,
8842 (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1);
8843
8844 DvcPutScsiQ(iop_base,
8845 q_addr + ASC_SCSIQ_CPY_BEG,
8846 (uchar *)&scsiq->q1.cntl,
8847 ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1);
8848 AscWriteLramWord(iop_base,
8849 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS),
8850 (ushort)(((ushort)scsiq->q1.
8851 q_no << 8) | (ushort)QS_READY));
8852 return 1;
8853 }
8854
8855 static int
8856 AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no)
8857 {
8858 int sta;
8859 int i;
8860 ASC_SG_HEAD *sg_head;
8861 ASC_SG_LIST_Q scsi_sg_q;
8862 ASC_DCNT saved_data_addr;
8863 ASC_DCNT saved_data_cnt;
8864 PortAddr iop_base;
8865 ushort sg_list_dwords;
8866 ushort sg_index;
8867 ushort sg_entry_cnt;
8868 ushort q_addr;
8869 uchar next_qp;
8870
8871 iop_base = asc_dvc->iop_base;
8872 sg_head = scsiq->sg_head;
8873 saved_data_addr = scsiq->q1.data_addr;
8874 saved_data_cnt = scsiq->q1.data_cnt;
8875 scsiq->q1.data_addr = (ASC_PADDR) sg_head->sg_list[0].addr;
8876 scsiq->q1.data_cnt = (ASC_DCNT) sg_head->sg_list[0].bytes;
8877 #if CC_VERY_LONG_SG_LIST
8878 /*
8879 * If sg_head->entry_cnt is greater than ASC_MAX_SG_LIST
8880 * then not all SG elements will fit in the allocated queues.
8881 * The rest of the SG elements will be copied when the RISC
8882 * completes the SG elements that fit and halts.
8883 */
8884 if (sg_head->entry_cnt > ASC_MAX_SG_LIST) {
8885 /*
8886 * Set sg_entry_cnt to be the number of SG elements that
8887 * will fit in the allocated SG queues. It is minus 1, because
8888 * the first SG element is handled above. ASC_MAX_SG_LIST is
8889 * already inflated by 1 to account for this. For example it
8890 * may be 50 which is 1 + 7 queues * 7 SG elements.
8891 */
8892 sg_entry_cnt = ASC_MAX_SG_LIST - 1;
8893
8894 /*
8895 * Keep track of remaining number of SG elements that will
8896 * need to be handled from a_isr.c.
8897 */
8898 scsiq->remain_sg_entry_cnt =
8899 sg_head->entry_cnt - ASC_MAX_SG_LIST;
8900 } else {
8901 #endif /* CC_VERY_LONG_SG_LIST */
8902 /*
8903 * Set sg_entry_cnt to be the number of SG elements that
8904 * will fit in the allocated SG queues. It is minus 1, because
8905 * the first SG element is handled above.
8906 */
8907 sg_entry_cnt = sg_head->entry_cnt - 1;
8908 #if CC_VERY_LONG_SG_LIST
8909 }
8910 #endif /* CC_VERY_LONG_SG_LIST */
8911 if (sg_entry_cnt != 0) {
8912 scsiq->q1.cntl |= QC_SG_HEAD;
8913 q_addr = ASC_QNO_TO_QADDR(q_no);
8914 sg_index = 1;
8915 scsiq->q1.sg_queue_cnt = sg_head->queue_cnt;
8916 scsi_sg_q.sg_head_qp = q_no;
8917 scsi_sg_q.cntl = QCSG_SG_XFER_LIST;
8918 for (i = 0; i < sg_head->queue_cnt; i++) {
8919 scsi_sg_q.seq_no = i + 1;
8920 if (sg_entry_cnt > ASC_SG_LIST_PER_Q) {
8921 sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2);
8922 sg_entry_cnt -= ASC_SG_LIST_PER_Q;
8923 if (i == 0) {
8924 scsi_sg_q.sg_list_cnt =
8925 ASC_SG_LIST_PER_Q;
8926 scsi_sg_q.sg_cur_list_cnt =
8927 ASC_SG_LIST_PER_Q;
8928 } else {
8929 scsi_sg_q.sg_list_cnt =
8930 ASC_SG_LIST_PER_Q - 1;
8931 scsi_sg_q.sg_cur_list_cnt =
8932 ASC_SG_LIST_PER_Q - 1;
8933 }
8934 } else {
8935 #if CC_VERY_LONG_SG_LIST
8936 /*
8937 * This is the last SG queue in the list of
8938 * allocated SG queues. If there are more
8939 * SG elements than will fit in the allocated
8940 * queues, then set the QCSG_SG_XFER_MORE flag.
8941 */
8942 if (sg_head->entry_cnt > ASC_MAX_SG_LIST) {
8943 scsi_sg_q.cntl |= QCSG_SG_XFER_MORE;
8944 } else {
8945 #endif /* CC_VERY_LONG_SG_LIST */
8946 scsi_sg_q.cntl |= QCSG_SG_XFER_END;
8947 #if CC_VERY_LONG_SG_LIST
8948 }
8949 #endif /* CC_VERY_LONG_SG_LIST */
8950 sg_list_dwords = sg_entry_cnt << 1;
8951 if (i == 0) {
8952 scsi_sg_q.sg_list_cnt = sg_entry_cnt;
8953 scsi_sg_q.sg_cur_list_cnt =
8954 sg_entry_cnt;
8955 } else {
8956 scsi_sg_q.sg_list_cnt =
8957 sg_entry_cnt - 1;
8958 scsi_sg_q.sg_cur_list_cnt =
8959 sg_entry_cnt - 1;
8960 }
8961 sg_entry_cnt = 0;
8962 }
8963 next_qp = AscReadLramByte(iop_base,
8964 (ushort)(q_addr +
8965 ASC_SCSIQ_B_FWD));
8966 scsi_sg_q.q_no = next_qp;
8967 q_addr = ASC_QNO_TO_QADDR(next_qp);
8968 AscMemWordCopyPtrToLram(iop_base,
8969 q_addr + ASC_SCSIQ_SGHD_CPY_BEG,
8970 (uchar *)&scsi_sg_q,
8971 sizeof(ASC_SG_LIST_Q) >> 1);
8972 AscMemDWordCopyPtrToLram(iop_base,
8973 q_addr + ASC_SGQ_LIST_BEG,
8974 (uchar *)&sg_head->
8975 sg_list[sg_index],
8976 sg_list_dwords);
8977 sg_index += ASC_SG_LIST_PER_Q;
8978 scsiq->next_sg_index = sg_index;
8979 }
8980 } else {
8981 scsiq->q1.cntl &= ~QC_SG_HEAD;
8982 }
8983 sta = AscPutReadyQueue(asc_dvc, scsiq, q_no);
8984 scsiq->q1.data_addr = saved_data_addr;
8985 scsiq->q1.data_cnt = saved_data_cnt;
8986 return (sta);
8987 }
8988
8989 static int
8990 AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required)
8991 {
8992 PortAddr iop_base;
8993 uchar free_q_head;
8994 uchar next_qp;
8995 uchar tid_no;
8996 uchar target_ix;
8997 int sta;
8998
8999 iop_base = asc_dvc->iop_base;
9000 target_ix = scsiq->q2.target_ix;
9001 tid_no = ASC_TIX_TO_TID(target_ix);
9002 sta = 0;
9003 free_q_head = (uchar)AscGetVarFreeQHead(iop_base);
9004 if (n_q_required > 1) {
9005 next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head,
9006 (uchar)n_q_required);
9007 if (next_qp != ASC_QLINK_END) {
9008 asc_dvc->last_q_shortage = 0;
9009 scsiq->sg_head->queue_cnt = n_q_required - 1;
9010 scsiq->q1.q_no = free_q_head;
9011 sta = AscPutReadySgListQueue(asc_dvc, scsiq,
9012 free_q_head);
9013 }
9014 } else if (n_q_required == 1) {
9015 next_qp = AscAllocFreeQueue(iop_base, free_q_head);
9016 if (next_qp != ASC_QLINK_END) {
9017 scsiq->q1.q_no = free_q_head;
9018 sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head);
9019 }
9020 }
9021 if (sta == 1) {
9022 AscPutVarFreeQHead(iop_base, next_qp);
9023 asc_dvc->cur_total_qng += n_q_required;
9024 asc_dvc->cur_dvc_qng[tid_no]++;
9025 }
9026 return sta;
9027 }
9028
9029 #define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16
9030 static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = {
9031 INQUIRY,
9032 REQUEST_SENSE,
9033 READ_CAPACITY,
9034 READ_TOC,
9035 MODE_SELECT,
9036 MODE_SENSE,
9037 MODE_SELECT_10,
9038 MODE_SENSE_10,
9039 0xFF,
9040 0xFF,
9041 0xFF,
9042 0xFF,
9043 0xFF,
9044 0xFF,
9045 0xFF,
9046 0xFF
9047 };
9048
9049 static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq)
9050 {
9051 PortAddr iop_base;
9052 int sta;
9053 int n_q_required;
9054 int disable_syn_offset_one_fix;
9055 int i;
9056 ASC_PADDR addr;
9057 ushort sg_entry_cnt = 0;
9058 ushort sg_entry_cnt_minus_one = 0;
9059 uchar target_ix;
9060 uchar tid_no;
9061 uchar sdtr_data;
9062 uchar extra_bytes;
9063 uchar scsi_cmd;
9064 uchar disable_cmd;
9065 ASC_SG_HEAD *sg_head;
9066 ASC_DCNT data_cnt;
9067
9068 iop_base = asc_dvc->iop_base;
9069 sg_head = scsiq->sg_head;
9070 if (asc_dvc->err_code != 0)
9071 return (ERR);
9072 scsiq->q1.q_no = 0;
9073 if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) {
9074 scsiq->q1.extra_bytes = 0;
9075 }
9076 sta = 0;
9077 target_ix = scsiq->q2.target_ix;
9078 tid_no = ASC_TIX_TO_TID(target_ix);
9079 n_q_required = 1;
9080 if (scsiq->cdbptr[0] == REQUEST_SENSE) {
9081 if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) {
9082 asc_dvc->sdtr_done &= ~scsiq->q1.target_id;
9083 sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no);
9084 AscMsgOutSDTR(asc_dvc,
9085 asc_dvc->
9086 sdtr_period_tbl[(sdtr_data >> 4) &
9087 (uchar)(asc_dvc->
9088 max_sdtr_index -
9089 1)],
9090 (uchar)(sdtr_data & (uchar)
9091 ASC_SYN_MAX_OFFSET));
9092 scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT);
9093 }
9094 }
9095 if (asc_dvc->in_critical_cnt != 0) {
9096 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY);
9097 return (ERR);
9098 }
9099 asc_dvc->in_critical_cnt++;
9100 if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) {
9101 if ((sg_entry_cnt = sg_head->entry_cnt) == 0) {
9102 asc_dvc->in_critical_cnt--;
9103 return (ERR);
9104 }
9105 #if !CC_VERY_LONG_SG_LIST
9106 if (sg_entry_cnt > ASC_MAX_SG_LIST) {
9107 asc_dvc->in_critical_cnt--;
9108 return (ERR);
9109 }
9110 #endif /* !CC_VERY_LONG_SG_LIST */
9111 if (sg_entry_cnt == 1) {
9112 scsiq->q1.data_addr =
9113 (ADV_PADDR)sg_head->sg_list[0].addr;
9114 scsiq->q1.data_cnt =
9115 (ADV_DCNT)sg_head->sg_list[0].bytes;
9116 scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE);
9117 }
9118 sg_entry_cnt_minus_one = sg_entry_cnt - 1;
9119 }
9120 scsi_cmd = scsiq->cdbptr[0];
9121 disable_syn_offset_one_fix = FALSE;
9122 if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) &&
9123 !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) {
9124 if (scsiq->q1.cntl & QC_SG_HEAD) {
9125 data_cnt = 0;
9126 for (i = 0; i < sg_entry_cnt; i++) {
9127 data_cnt +=
9128 (ADV_DCNT)le32_to_cpu(sg_head->sg_list[i].
9129 bytes);
9130 }
9131 } else {
9132 data_cnt = le32_to_cpu(scsiq->q1.data_cnt);
9133 }
9134 if (data_cnt != 0UL) {
9135 if (data_cnt < 512UL) {
9136 disable_syn_offset_one_fix = TRUE;
9137 } else {
9138 for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST;
9139 i++) {
9140 disable_cmd =
9141 _syn_offset_one_disable_cmd[i];
9142 if (disable_cmd == 0xFF) {
9143 break;
9144 }
9145 if (scsi_cmd == disable_cmd) {
9146 disable_syn_offset_one_fix =
9147 TRUE;
9148 break;
9149 }
9150 }
9151 }
9152 }
9153 }
9154 if (disable_syn_offset_one_fix) {
9155 scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG;
9156 scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX |
9157 ASC_TAG_FLAG_DISABLE_DISCONNECT);
9158 } else {
9159 scsiq->q2.tag_code &= 0x27;
9160 }
9161 if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) {
9162 if (asc_dvc->bug_fix_cntl) {
9163 if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) {
9164 if ((scsi_cmd == READ_6) ||
9165 (scsi_cmd == READ_10)) {
9166 addr =
9167 (ADV_PADDR)le32_to_cpu(sg_head->
9168 sg_list
9169 [sg_entry_cnt_minus_one].
9170 addr) +
9171 (ADV_DCNT)le32_to_cpu(sg_head->
9172 sg_list
9173 [sg_entry_cnt_minus_one].
9174 bytes);
9175 extra_bytes =
9176 (uchar)((ushort)addr & 0x0003);
9177 if ((extra_bytes != 0)
9178 &&
9179 ((scsiq->q2.
9180 tag_code &
9181 ASC_TAG_FLAG_EXTRA_BYTES)
9182 == 0)) {
9183 scsiq->q2.tag_code |=
9184 ASC_TAG_FLAG_EXTRA_BYTES;
9185 scsiq->q1.extra_bytes =
9186 extra_bytes;
9187 data_cnt =
9188 le32_to_cpu(sg_head->
9189 sg_list
9190 [sg_entry_cnt_minus_one].
9191 bytes);
9192 data_cnt -=
9193 (ASC_DCNT) extra_bytes;
9194 sg_head->
9195 sg_list
9196 [sg_entry_cnt_minus_one].
9197 bytes =
9198 cpu_to_le32(data_cnt);
9199 }
9200 }
9201 }
9202 }
9203 sg_head->entry_to_copy = sg_head->entry_cnt;
9204 #if CC_VERY_LONG_SG_LIST
9205 /*
9206 * Set the sg_entry_cnt to the maximum possible. The rest of
9207 * the SG elements will be copied when the RISC completes the
9208 * SG elements that fit and halts.
9209 */
9210 if (sg_entry_cnt > ASC_MAX_SG_LIST) {
9211 sg_entry_cnt = ASC_MAX_SG_LIST;
9212 }
9213 #endif /* CC_VERY_LONG_SG_LIST */
9214 n_q_required = AscSgListToQueue(sg_entry_cnt);
9215 if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >=
9216 (uint) n_q_required)
9217 || ((scsiq->q1.cntl & QC_URGENT) != 0)) {
9218 if ((sta =
9219 AscSendScsiQueue(asc_dvc, scsiq,
9220 n_q_required)) == 1) {
9221 asc_dvc->in_critical_cnt--;
9222 return (sta);
9223 }
9224 }
9225 } else {
9226 if (asc_dvc->bug_fix_cntl) {
9227 if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) {
9228 if ((scsi_cmd == READ_6) ||
9229 (scsi_cmd == READ_10)) {
9230 addr =
9231 le32_to_cpu(scsiq->q1.data_addr) +
9232 le32_to_cpu(scsiq->q1.data_cnt);
9233 extra_bytes =
9234 (uchar)((ushort)addr & 0x0003);
9235 if ((extra_bytes != 0)
9236 &&
9237 ((scsiq->q2.
9238 tag_code &
9239 ASC_TAG_FLAG_EXTRA_BYTES)
9240 == 0)) {
9241 data_cnt =
9242 le32_to_cpu(scsiq->q1.
9243 data_cnt);
9244 if (((ushort)data_cnt & 0x01FF)
9245 == 0) {
9246 scsiq->q2.tag_code |=
9247 ASC_TAG_FLAG_EXTRA_BYTES;
9248 data_cnt -= (ASC_DCNT)
9249 extra_bytes;
9250 scsiq->q1.data_cnt =
9251 cpu_to_le32
9252 (data_cnt);
9253 scsiq->q1.extra_bytes =
9254 extra_bytes;
9255 }
9256 }
9257 }
9258 }
9259 }
9260 n_q_required = 1;
9261 if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) ||
9262 ((scsiq->q1.cntl & QC_URGENT) != 0)) {
9263 if ((sta = AscSendScsiQueue(asc_dvc, scsiq,
9264 n_q_required)) == 1) {
9265 asc_dvc->in_critical_cnt--;
9266 return (sta);
9267 }
9268 }
9269 }
9270 asc_dvc->in_critical_cnt--;
9271 return (sta);
9272 }
9273
9274 /*
9275 * AdvExeScsiQueue() - Send a request to the RISC microcode program.
9276 *
9277 * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q,
9278 * add the carrier to the ICQ (Initiator Command Queue), and tickle the
9279 * RISC to notify it a new command is ready to be executed.
9280 *
9281 * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be
9282 * set to SCSI_MAX_RETRY.
9283 *
9284 * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the microcode
9285 * for DMA addresses or math operations are byte swapped to little-endian
9286 * order.
9287 *
9288 * Return:
9289 * ADV_SUCCESS(1) - The request was successfully queued.
9290 * ADV_BUSY(0) - Resource unavailable; Retry again after pending
9291 * request completes.
9292 * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure
9293 * host IC error.
9294 */
9295 static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq)
9296 {
9297 AdvPortAddr iop_base;
9298 ADV_PADDR req_paddr;
9299 ADV_CARR_T *new_carrp;
9300
9301 /*
9302 * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID.
9303 */
9304 if (scsiq->target_id > ADV_MAX_TID) {
9305 scsiq->host_status = QHSTA_M_INVALID_DEVICE;
9306 scsiq->done_status = QD_WITH_ERROR;
9307 return ADV_ERROR;
9308 }
9309
9310 iop_base = asc_dvc->iop_base;
9311
9312 /*
9313 * Allocate a carrier ensuring at least one carrier always
9314 * remains on the freelist and initialize fields.
9315 */
9316 if ((new_carrp = asc_dvc->carr_freelist) == NULL) {
9317 return ADV_BUSY;
9318 }
9319 asc_dvc->carr_freelist = (ADV_CARR_T *)
9320 ADV_U32_TO_VADDR(le32_to_cpu(new_carrp->next_vpa));
9321 asc_dvc->carr_pending_cnt++;
9322
9323 /*
9324 * Set the carrier to be a stopper by setting 'next_vpa'
9325 * to the stopper value. The current stopper will be changed
9326 * below to point to the new stopper.
9327 */
9328 new_carrp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER);
9329
9330 /*
9331 * Clear the ADV_SCSI_REQ_Q done flag.
9332 */
9333 scsiq->a_flag &= ~ADV_SCSIQ_DONE;
9334
9335 req_paddr = virt_to_bus(scsiq);
9336 BUG_ON(req_paddr & 31);
9337 /* Wait for assertion before making little-endian */
9338 req_paddr = cpu_to_le32(req_paddr);
9339
9340 /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */
9341 scsiq->scsiq_ptr = cpu_to_le32(ADV_VADDR_TO_U32(scsiq));
9342 scsiq->scsiq_rptr = req_paddr;
9343
9344 scsiq->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->icq_sp));
9345 /*
9346 * Every ADV_CARR_T.carr_pa is byte swapped to little-endian
9347 * order during initialization.
9348 */
9349 scsiq->carr_pa = asc_dvc->icq_sp->carr_pa;
9350
9351 /*
9352 * Use the current stopper to send the ADV_SCSI_REQ_Q command to
9353 * the microcode. The newly allocated stopper will become the new
9354 * stopper.
9355 */
9356 asc_dvc->icq_sp->areq_vpa = req_paddr;
9357
9358 /*
9359 * Set the 'next_vpa' pointer for the old stopper to be the
9360 * physical address of the new stopper. The RISC can only
9361 * follow physical addresses.
9362 */
9363 asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa;
9364
9365 /*
9366 * Set the host adapter stopper pointer to point to the new carrier.
9367 */
9368 asc_dvc->icq_sp = new_carrp;
9369
9370 if (asc_dvc->chip_type == ADV_CHIP_ASC3550 ||
9371 asc_dvc->chip_type == ADV_CHIP_ASC38C0800) {
9372 /*
9373 * Tickle the RISC to tell it to read its Command Queue Head pointer.
9374 */
9375 AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A);
9376 if (asc_dvc->chip_type == ADV_CHIP_ASC3550) {
9377 /*
9378 * Clear the tickle value. In the ASC-3550 the RISC flag
9379 * command 'clr_tickle_a' does not work unless the host
9380 * value is cleared.
9381 */
9382 AdvWriteByteRegister(iop_base, IOPB_TICKLE,
9383 ADV_TICKLE_NOP);
9384 }
9385 } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) {
9386 /*
9387 * Notify the RISC a carrier is ready by writing the physical
9388 * address of the new carrier stopper to the COMMA register.
9389 */
9390 AdvWriteDWordRegister(iop_base, IOPDW_COMMA,
9391 le32_to_cpu(new_carrp->carr_pa));
9392 }
9393
9394 return ADV_SUCCESS;
9395 }
9396
9397 /*
9398 * Execute a single 'Scsi_Cmnd'.
9399 */
9400 static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp)
9401 {
9402 int ret, err_code;
9403 struct asc_board *boardp = shost_priv(scp->device->host);
9404
9405 ASC_DBG(1, "scp 0x%p\n", scp);
9406
9407 if (ASC_NARROW_BOARD(boardp)) {
9408 ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var;
9409 struct asc_scsi_q asc_scsi_q;
9410
9411 /* asc_build_req() can not return ASC_BUSY. */
9412 ret = asc_build_req(boardp, scp, &asc_scsi_q);
9413 if (ret == ASC_ERROR) {
9414 ASC_STATS(scp->device->host, build_error);
9415 return ASC_ERROR;
9416 }
9417
9418 ret = AscExeScsiQueue(asc_dvc, &asc_scsi_q);
9419 kfree(asc_scsi_q.sg_head);
9420 err_code = asc_dvc->err_code;
9421 } else {
9422 ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var;
9423 ADV_SCSI_REQ_Q *adv_scsiqp;
9424
9425 switch (adv_build_req(boardp, scp, &adv_scsiqp)) {
9426 case ASC_NOERROR:
9427 ASC_DBG(3, "adv_build_req ASC_NOERROR\n");
9428 break;
9429 case ASC_BUSY:
9430 ASC_DBG(1, "adv_build_req ASC_BUSY\n");
9431 /*
9432 * The asc_stats fields 'adv_build_noreq' and
9433 * 'adv_build_nosg' count wide board busy conditions.
9434 * They are updated in adv_build_req and
9435 * adv_get_sglist, respectively.
9436 */
9437 return ASC_BUSY;
9438 case ASC_ERROR:
9439 default:
9440 ASC_DBG(1, "adv_build_req ASC_ERROR\n");
9441 ASC_STATS(scp->device->host, build_error);
9442 return ASC_ERROR;
9443 }
9444
9445 ret = AdvExeScsiQueue(adv_dvc, adv_scsiqp);
9446 err_code = adv_dvc->err_code;
9447 }
9448
9449 switch (ret) {
9450 case ASC_NOERROR:
9451 ASC_STATS(scp->device->host, exe_noerror);
9452 /*
9453 * Increment monotonically increasing per device
9454 * successful request counter. Wrapping doesn't matter.
9455 */
9456 boardp->reqcnt[scp->device->id]++;
9457 ASC_DBG(1, "ExeScsiQueue() ASC_NOERROR\n");
9458 break;
9459 case ASC_BUSY:
9460 ASC_STATS(scp->device->host, exe_busy);
9461 break;
9462 case ASC_ERROR:
9463 scmd_printk(KERN_ERR, scp, "ExeScsiQueue() ASC_ERROR, "
9464 "err_code 0x%x\n", err_code);
9465 ASC_STATS(scp->device->host, exe_error);
9466 scp->result = HOST_BYTE(DID_ERROR);
9467 break;
9468 default:
9469 scmd_printk(KERN_ERR, scp, "ExeScsiQueue() unknown, "
9470 "err_code 0x%x\n", err_code);
9471 ASC_STATS(scp->device->host, exe_unknown);
9472 scp->result = HOST_BYTE(DID_ERROR);
9473 break;
9474 }
9475
9476 ASC_DBG(1, "end\n");
9477 return ret;
9478 }
9479
9480 /*
9481 * advansys_queuecommand() - interrupt-driven I/O entrypoint.
9482 *
9483 * This function always returns 0. Command return status is saved
9484 * in the 'scp' result field.
9485 */
9486 static int
9487 advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
9488 {
9489 struct Scsi_Host *shost = scp->device->host;
9490 int asc_res, result = 0;
9491
9492 ASC_STATS(shost, queuecommand);
9493 scp->scsi_done = done;
9494
9495 asc_res = asc_execute_scsi_cmnd(scp);
9496
9497 switch (asc_res) {
9498 case ASC_NOERROR:
9499 break;
9500 case ASC_BUSY:
9501 result = SCSI_MLQUEUE_HOST_BUSY;
9502 break;
9503 case ASC_ERROR:
9504 default:
9505 asc_scsi_done(scp);
9506 break;
9507 }
9508
9509 return result;
9510 }
9511
9512 static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base)
9513 {
9514 PortAddr eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) |
9515 (PortAddr) (ASC_EISA_CFG_IOP_MASK);
9516 return inpw(eisa_cfg_iop);
9517 }
9518
9519 /*
9520 * Return the BIOS address of the adapter at the specified
9521 * I/O port and with the specified bus type.
9522 */
9523 static unsigned short __devinit
9524 AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type)
9525 {
9526 unsigned short cfg_lsw;
9527 unsigned short bios_addr;
9528
9529 /*
9530 * The PCI BIOS is re-located by the motherboard BIOS. Because
9531 * of this the driver can not determine where a PCI BIOS is
9532 * loaded and executes.
9533 */
9534 if (bus_type & ASC_IS_PCI)
9535 return 0;
9536
9537 if ((bus_type & ASC_IS_EISA) != 0) {
9538 cfg_lsw = AscGetEisaChipCfg(iop_base);
9539 cfg_lsw &= 0x000F;
9540 bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE;
9541 return bios_addr;
9542 }
9543
9544 cfg_lsw = AscGetChipCfgLsw(iop_base);
9545
9546 /*
9547 * ISA PnP uses the top bit as the 32K BIOS flag
9548 */
9549 if (bus_type == ASC_IS_ISAPNP)
9550 cfg_lsw &= 0x7FFF;
9551 bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE;
9552 return bios_addr;
9553 }
9554
9555 static uchar __devinit AscSetChipScsiID(PortAddr iop_base, uchar new_host_id)
9556 {
9557 ushort cfg_lsw;
9558
9559 if (AscGetChipScsiID(iop_base) == new_host_id) {
9560 return (new_host_id);
9561 }
9562 cfg_lsw = AscGetChipCfgLsw(iop_base);
9563 cfg_lsw &= 0xF8FF;
9564 cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8);
9565 AscSetChipCfgLsw(iop_base, cfg_lsw);
9566 return (AscGetChipScsiID(iop_base));
9567 }
9568
9569 static unsigned char __devinit AscGetChipScsiCtrl(PortAddr iop_base)
9570 {
9571 unsigned char sc;
9572
9573 AscSetBank(iop_base, 1);
9574 sc = inp(iop_base + IOP_REG_SC);
9575 AscSetBank(iop_base, 0);
9576 return sc;
9577 }
9578
9579 static unsigned char __devinit
9580 AscGetChipVersion(PortAddr iop_base, unsigned short bus_type)
9581 {
9582 if (bus_type & ASC_IS_EISA) {
9583 PortAddr eisa_iop;
9584 unsigned char revision;
9585 eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) |
9586 (PortAddr) ASC_EISA_REV_IOP_MASK;
9587 revision = inp(eisa_iop);
9588 return ASC_CHIP_MIN_VER_EISA - 1 + revision;
9589 }
9590 return AscGetChipVerNo(iop_base);
9591 }
9592
9593 #ifdef CONFIG_ISA
9594 static void __devinit AscEnableIsaDma(uchar dma_channel)
9595 {
9596 if (dma_channel < 4) {
9597 outp(0x000B, (ushort)(0xC0 | dma_channel));
9598 outp(0x000A, dma_channel);
9599 } else if (dma_channel < 8) {
9600 outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4)));
9601 outp(0x00D4, (ushort)(dma_channel - 4));
9602 }
9603 }
9604 #endif /* CONFIG_ISA */
9605
9606 static int AscStopQueueExe(PortAddr iop_base)
9607 {
9608 int count = 0;
9609
9610 if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) {
9611 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B,
9612 ASC_STOP_REQ_RISC_STOP);
9613 do {
9614 if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) &
9615 ASC_STOP_ACK_RISC_STOP) {
9616 return (1);
9617 }
9618 mdelay(100);
9619 } while (count++ < 20);
9620 }
9621 return (0);
9622 }
9623
9624 static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type)
9625 {
9626 if (bus_type & ASC_IS_ISA)
9627 return ASC_MAX_ISA_DMA_COUNT;
9628 else if (bus_type & (ASC_IS_EISA | ASC_IS_VL))
9629 return ASC_MAX_VL_DMA_COUNT;
9630 return ASC_MAX_PCI_DMA_COUNT;
9631 }
9632
9633 #ifdef CONFIG_ISA
9634 static ushort __devinit AscGetIsaDmaChannel(PortAddr iop_base)
9635 {
9636 ushort channel;
9637
9638 channel = AscGetChipCfgLsw(iop_base) & 0x0003;
9639 if (channel == 0x03)
9640 return (0);
9641 else if (channel == 0x00)
9642 return (7);
9643 return (channel + 4);
9644 }
9645
9646 static ushort __devinit AscSetIsaDmaChannel(PortAddr iop_base, ushort dma_channel)
9647 {
9648 ushort cfg_lsw;
9649 uchar value;
9650
9651 if ((dma_channel >= 5) && (dma_channel <= 7)) {
9652 if (dma_channel == 7)
9653 value = 0x00;
9654 else
9655 value = dma_channel - 4;
9656 cfg_lsw = AscGetChipCfgLsw(iop_base) & 0xFFFC;
9657 cfg_lsw |= value;
9658 AscSetChipCfgLsw(iop_base, cfg_lsw);
9659 return (AscGetIsaDmaChannel(iop_base));
9660 }
9661 return 0;
9662 }
9663
9664 static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base)
9665 {
9666 uchar speed_value;
9667
9668 AscSetBank(iop_base, 1);
9669 speed_value = AscReadChipDmaSpeed(iop_base);
9670 speed_value &= 0x07;
9671 AscSetBank(iop_base, 0);
9672 return speed_value;
9673 }
9674
9675 static uchar __devinit AscSetIsaDmaSpeed(PortAddr iop_base, uchar speed_value)
9676 {
9677 speed_value &= 0x07;
9678 AscSetBank(iop_base, 1);
9679 AscWriteChipDmaSpeed(iop_base, speed_value);
9680 AscSetBank(iop_base, 0);
9681 return AscGetIsaDmaSpeed(iop_base);
9682 }
9683 #endif /* CONFIG_ISA */
9684
9685 static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc)
9686 {
9687 int i;
9688 PortAddr iop_base;
9689 ushort warn_code;
9690 uchar chip_version;
9691
9692 iop_base = asc_dvc->iop_base;
9693 warn_code = 0;
9694 asc_dvc->err_code = 0;
9695 if ((asc_dvc->bus_type &
9696 (ASC_IS_ISA | ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) {
9697 asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE;
9698 }
9699 AscSetChipControl(iop_base, CC_HALT);
9700 AscSetChipStatus(iop_base, 0);
9701 asc_dvc->bug_fix_cntl = 0;
9702 asc_dvc->pci_fix_asyn_xfer = 0;
9703 asc_dvc->pci_fix_asyn_xfer_always = 0;
9704 /* asc_dvc->init_state initalized in AscInitGetConfig(). */
9705 asc_dvc->sdtr_done = 0;
9706 asc_dvc->cur_total_qng = 0;
9707 asc_dvc->is_in_int = 0;
9708 asc_dvc->in_critical_cnt = 0;
9709 asc_dvc->last_q_shortage = 0;
9710 asc_dvc->use_tagged_qng = 0;
9711 asc_dvc->no_scam = 0;
9712 asc_dvc->unit_not_ready = 0;
9713 asc_dvc->queue_full_or_busy = 0;
9714 asc_dvc->redo_scam = 0;
9715 asc_dvc->res2 = 0;
9716 asc_dvc->min_sdtr_index = 0;
9717 asc_dvc->cfg->can_tagged_qng = 0;
9718 asc_dvc->cfg->cmd_qng_enabled = 0;
9719 asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL;
9720 asc_dvc->init_sdtr = 0;
9721 asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG;
9722 asc_dvc->scsi_reset_wait = 3;
9723 asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET;
9724 asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type);
9725 asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET;
9726 asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET;
9727 asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID;
9728 chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type);
9729 asc_dvc->cfg->chip_version = chip_version;
9730 asc_dvc->sdtr_period_tbl = asc_syn_xfer_period;
9731 asc_dvc->max_sdtr_index = 7;
9732 if ((asc_dvc->bus_type & ASC_IS_PCI) &&
9733 (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) {
9734 asc_dvc->bus_type = ASC_IS_PCI_ULTRA;
9735 asc_dvc->sdtr_period_tbl = asc_syn_ultra_xfer_period;
9736 asc_dvc->max_sdtr_index = 15;
9737 if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) {
9738 AscSetExtraControl(iop_base,
9739 (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE));
9740 } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) {
9741 AscSetExtraControl(iop_base,
9742 (SEC_ACTIVE_NEGATE |
9743 SEC_ENABLE_FILTER));
9744 }
9745 }
9746 if (asc_dvc->bus_type == ASC_IS_PCI) {
9747 AscSetExtraControl(iop_base,
9748 (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE));
9749 }
9750
9751 asc_dvc->cfg->isa_dma_speed = ASC_DEF_ISA_DMA_SPEED;
9752 #ifdef CONFIG_ISA
9753 if ((asc_dvc->bus_type & ASC_IS_ISA) != 0) {
9754 if (chip_version >= ASC_CHIP_MIN_VER_ISA_PNP) {
9755 AscSetChipIFC(iop_base, IFC_INIT_DEFAULT);
9756 asc_dvc->bus_type = ASC_IS_ISAPNP;
9757 }
9758 asc_dvc->cfg->isa_dma_channel =
9759 (uchar)AscGetIsaDmaChannel(iop_base);
9760 }
9761 #endif /* CONFIG_ISA */
9762 for (i = 0; i <= ASC_MAX_TID; i++) {
9763 asc_dvc->cur_dvc_qng[i] = 0;
9764 asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG;
9765 asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L;
9766 asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L;
9767 asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG;
9768 }
9769 return warn_code;
9770 }
9771
9772 static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg)
9773 {
9774 int retry;
9775
9776 for (retry = 0; retry < ASC_EEP_MAX_RETRY; retry++) {
9777 unsigned char read_back;
9778 AscSetChipEEPCmd(iop_base, cmd_reg);
9779 mdelay(1);
9780 read_back = AscGetChipEEPCmd(iop_base);
9781 if (read_back == cmd_reg)
9782 return 1;
9783 }
9784 return 0;
9785 }
9786
9787 static void __devinit AscWaitEEPRead(void)
9788 {
9789 mdelay(1);
9790 }
9791
9792 static ushort __devinit AscReadEEPWord(PortAddr iop_base, uchar addr)
9793 {
9794 ushort read_wval;
9795 uchar cmd_reg;
9796
9797 AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE);
9798 AscWaitEEPRead();
9799 cmd_reg = addr | ASC_EEP_CMD_READ;
9800 AscWriteEEPCmdReg(iop_base, cmd_reg);
9801 AscWaitEEPRead();
9802 read_wval = AscGetChipEEPData(iop_base);
9803 AscWaitEEPRead();
9804 return read_wval;
9805 }
9806
9807 static ushort __devinit
9808 AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type)
9809 {
9810 ushort wval;
9811 ushort sum;
9812 ushort *wbuf;
9813 int cfg_beg;
9814 int cfg_end;
9815 int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2;
9816 int s_addr;
9817
9818 wbuf = (ushort *)cfg_buf;
9819 sum = 0;
9820 /* Read two config words; Byte-swapping done by AscReadEEPWord(). */
9821 for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) {
9822 *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr);
9823 sum += *wbuf;
9824 }
9825 if (bus_type & ASC_IS_VL) {
9826 cfg_beg = ASC_EEP_DVC_CFG_BEG_VL;
9827 cfg_end = ASC_EEP_MAX_DVC_ADDR_VL;
9828 } else {
9829 cfg_beg = ASC_EEP_DVC_CFG_BEG;
9830 cfg_end = ASC_EEP_MAX_DVC_ADDR;
9831 }
9832 for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) {
9833 wval = AscReadEEPWord(iop_base, (uchar)s_addr);
9834 if (s_addr <= uchar_end_in_config) {
9835 /*
9836 * Swap all char fields - must unswap bytes already swapped
9837 * by AscReadEEPWord().
9838 */
9839 *wbuf = le16_to_cpu(wval);
9840 } else {
9841 /* Don't swap word field at the end - cntl field. */
9842 *wbuf = wval;
9843 }
9844 sum += wval; /* Checksum treats all EEPROM data as words. */
9845 }
9846 /*
9847 * Read the checksum word which will be compared against 'sum'
9848 * by the caller. Word field already swapped.
9849 */
9850 *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr);
9851 return sum;
9852 }
9853
9854 static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc)
9855 {
9856 PortAddr iop_base;
9857 ushort q_addr;
9858 ushort saved_word;
9859 int sta;
9860
9861 iop_base = asc_dvc->iop_base;
9862 sta = 0;
9863 q_addr = ASC_QNO_TO_QADDR(241);
9864 saved_word = AscReadLramWord(iop_base, q_addr);
9865 AscSetChipLramAddr(iop_base, q_addr);
9866 AscSetChipLramData(iop_base, 0x55AA);
9867 mdelay(10);
9868 AscSetChipLramAddr(iop_base, q_addr);
9869 if (AscGetChipLramData(iop_base) == 0x55AA) {
9870 sta = 1;
9871 AscWriteLramWord(iop_base, q_addr, saved_word);
9872 }
9873 return (sta);
9874 }
9875
9876 static void __devinit AscWaitEEPWrite(void)
9877 {
9878 mdelay(20);
9879 }
9880
9881 static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg)
9882 {
9883 ushort read_back;
9884 int retry;
9885
9886 retry = 0;
9887 while (TRUE) {
9888 AscSetChipEEPData(iop_base, data_reg);
9889 mdelay(1);
9890 read_back = AscGetChipEEPData(iop_base);
9891 if (read_back == data_reg) {
9892 return (1);
9893 }
9894 if (retry++ > ASC_EEP_MAX_RETRY) {
9895 return (0);
9896 }
9897 }
9898 }
9899
9900 static ushort __devinit
9901 AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val)
9902 {
9903 ushort read_wval;
9904
9905 read_wval = AscReadEEPWord(iop_base, addr);
9906 if (read_wval != word_val) {
9907 AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE);
9908 AscWaitEEPRead();
9909 AscWriteEEPDataReg(iop_base, word_val);
9910 AscWaitEEPRead();
9911 AscWriteEEPCmdReg(iop_base,
9912 (uchar)((uchar)ASC_EEP_CMD_WRITE | addr));
9913 AscWaitEEPWrite();
9914 AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE);
9915 AscWaitEEPRead();
9916 return (AscReadEEPWord(iop_base, addr));
9917 }
9918 return (read_wval);
9919 }
9920
9921 static int __devinit
9922 AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type)
9923 {
9924 int n_error;
9925 ushort *wbuf;
9926 ushort word;
9927 ushort sum;
9928 int s_addr;
9929 int cfg_beg;
9930 int cfg_end;
9931 int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2;
9932
9933 wbuf = (ushort *)cfg_buf;
9934 n_error = 0;
9935 sum = 0;
9936 /* Write two config words; AscWriteEEPWord() will swap bytes. */
9937 for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) {
9938 sum += *wbuf;
9939 if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) {
9940 n_error++;
9941 }
9942 }
9943 if (bus_type & ASC_IS_VL) {
9944 cfg_beg = ASC_EEP_DVC_CFG_BEG_VL;
9945 cfg_end = ASC_EEP_MAX_DVC_ADDR_VL;
9946 } else {
9947 cfg_beg = ASC_EEP_DVC_CFG_BEG;
9948 cfg_end = ASC_EEP_MAX_DVC_ADDR;
9949 }
9950 for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) {
9951 if (s_addr <= uchar_end_in_config) {
9952 /*
9953 * This is a char field. Swap char fields before they are
9954 * swapped again by AscWriteEEPWord().
9955 */
9956 word = cpu_to_le16(*wbuf);
9957 if (word !=
9958 AscWriteEEPWord(iop_base, (uchar)s_addr, word)) {
9959 n_error++;
9960 }
9961 } else {
9962 /* Don't swap word field at the end - cntl field. */
9963 if (*wbuf !=
9964 AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) {
9965 n_error++;
9966 }
9967 }
9968 sum += *wbuf; /* Checksum calculated from word values. */
9969 }
9970 /* Write checksum word. It will be swapped by AscWriteEEPWord(). */
9971 *wbuf = sum;
9972 if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) {
9973 n_error++;
9974 }
9975
9976 /* Read EEPROM back again. */
9977 wbuf = (ushort *)cfg_buf;
9978 /*
9979 * Read two config words; Byte-swapping done by AscReadEEPWord().
9980 */
9981 for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) {
9982 if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) {
9983 n_error++;
9984 }
9985 }
9986 if (bus_type & ASC_IS_VL) {
9987 cfg_beg = ASC_EEP_DVC_CFG_BEG_VL;
9988 cfg_end = ASC_EEP_MAX_DVC_ADDR_VL;
9989 } else {
9990 cfg_beg = ASC_EEP_DVC_CFG_BEG;
9991 cfg_end = ASC_EEP_MAX_DVC_ADDR;
9992 }
9993 for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) {
9994 if (s_addr <= uchar_end_in_config) {
9995 /*
9996 * Swap all char fields. Must unswap bytes already swapped
9997 * by AscReadEEPWord().
9998 */
9999 word =
10000 le16_to_cpu(AscReadEEPWord
10001 (iop_base, (uchar)s_addr));
10002 } else {
10003 /* Don't swap word field at the end - cntl field. */
10004 word = AscReadEEPWord(iop_base, (uchar)s_addr);
10005 }
10006 if (*wbuf != word) {
10007 n_error++;
10008 }
10009 }
10010 /* Read checksum; Byte swapping not needed. */
10011 if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) {
10012 n_error++;
10013 }
10014 return n_error;
10015 }
10016
10017 static int __devinit
10018 AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type)
10019 {
10020 int retry;
10021 int n_error;
10022
10023 retry = 0;
10024 while (TRUE) {
10025 if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf,
10026 bus_type)) == 0) {
10027 break;
10028 }
10029 if (++retry > ASC_EEP_MAX_RETRY) {
10030 break;
10031 }
10032 }
10033 return n_error;
10034 }
10035
10036 static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc)
10037 {
10038 ASCEEP_CONFIG eep_config_buf;
10039 ASCEEP_CONFIG *eep_config;
10040 PortAddr iop_base;
10041 ushort chksum;
10042 ushort warn_code;
10043 ushort cfg_msw, cfg_lsw;
10044 int i;
10045 int write_eep = 0;
10046
10047 iop_base = asc_dvc->iop_base;
10048 warn_code = 0;
10049 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE);
10050 AscStopQueueExe(iop_base);
10051 if ((AscStopChip(iop_base) == FALSE) ||
10052 (AscGetChipScsiCtrl(iop_base) != 0)) {
10053 asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE;
10054 AscResetChipAndScsiBus(asc_dvc);
10055 mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */
10056 }
10057 if (AscIsChipHalted(iop_base) == FALSE) {
10058 asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP;
10059 return (warn_code);
10060 }
10061 AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR);
10062 if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) {
10063 asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR;
10064 return (warn_code);
10065 }
10066 eep_config = (ASCEEP_CONFIG *)&eep_config_buf;
10067 cfg_msw = AscGetChipCfgMsw(iop_base);
10068 cfg_lsw = AscGetChipCfgLsw(iop_base);
10069 if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) {
10070 cfg_msw &= ~ASC_CFG_MSW_CLR_MASK;
10071 warn_code |= ASC_WARN_CFG_MSW_RECOVER;
10072 AscSetChipCfgMsw(iop_base, cfg_msw);
10073 }
10074 chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type);
10075 ASC_DBG(1, "chksum 0x%x\n", chksum);
10076 if (chksum == 0) {
10077 chksum = 0xaa55;
10078 }
10079 if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) {
10080 warn_code |= ASC_WARN_AUTO_CONFIG;
10081 if (asc_dvc->cfg->chip_version == 3) {
10082 if (eep_config->cfg_lsw != cfg_lsw) {
10083 warn_code |= ASC_WARN_EEPROM_RECOVER;
10084 eep_config->cfg_lsw =
10085 AscGetChipCfgLsw(iop_base);
10086 }
10087 if (eep_config->cfg_msw != cfg_msw) {
10088 warn_code |= ASC_WARN_EEPROM_RECOVER;
10089 eep_config->cfg_msw =
10090 AscGetChipCfgMsw(iop_base);
10091 }
10092 }
10093 }
10094 eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK;
10095 eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON;
10096 ASC_DBG(1, "eep_config->chksum 0x%x\n", eep_config->chksum);
10097 if (chksum != eep_config->chksum) {
10098 if (AscGetChipVersion(iop_base, asc_dvc->bus_type) ==
10099 ASC_CHIP_VER_PCI_ULTRA_3050) {
10100 ASC_DBG(1, "chksum error ignored; EEPROM-less board\n");
10101 eep_config->init_sdtr = 0xFF;
10102 eep_config->disc_enable = 0xFF;
10103 eep_config->start_motor = 0xFF;
10104 eep_config->use_cmd_qng = 0;
10105 eep_config->max_total_qng = 0xF0;
10106 eep_config->max_tag_qng = 0x20;
10107 eep_config->cntl = 0xBFFF;
10108 ASC_EEP_SET_CHIP_ID(eep_config, 7);
10109 eep_config->no_scam = 0;
10110 eep_config->adapter_info[0] = 0;
10111 eep_config->adapter_info[1] = 0;
10112 eep_config->adapter_info[2] = 0;
10113 eep_config->adapter_info[3] = 0;
10114 eep_config->adapter_info[4] = 0;
10115 /* Indicate EEPROM-less board. */
10116 eep_config->adapter_info[5] = 0xBB;
10117 } else {
10118 ASC_PRINT
10119 ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n");
10120 write_eep = 1;
10121 warn_code |= ASC_WARN_EEPROM_CHKSUM;
10122 }
10123 }
10124 asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr;
10125 asc_dvc->cfg->disc_enable = eep_config->disc_enable;
10126 asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng;
10127 asc_dvc->cfg->isa_dma_speed = ASC_EEP_GET_DMA_SPD(eep_config);
10128 asc_dvc->start_motor = eep_config->start_motor;
10129 asc_dvc->dvc_cntl = eep_config->cntl;
10130 asc_dvc->no_scam = eep_config->no_scam;
10131 asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0];
10132 asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1];
10133 asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2];
10134 asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3];
10135 asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4];
10136 asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5];
10137 if (!AscTestExternalLram(asc_dvc)) {
10138 if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) ==
10139 ASC_IS_PCI_ULTRA)) {
10140 eep_config->max_total_qng =
10141 ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG;
10142 eep_config->max_tag_qng =
10143 ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG;
10144 } else {
10145 eep_config->cfg_msw |= 0x0800;
10146 cfg_msw |= 0x0800;
10147 AscSetChipCfgMsw(iop_base, cfg_msw);
10148 eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG;
10149 eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG;
10150 }
10151 } else {
10152 }
10153 if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) {
10154 eep_config->max_total_qng = ASC_MIN_TOTAL_QNG;
10155 }
10156 if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) {
10157 eep_config->max_total_qng = ASC_MAX_TOTAL_QNG;
10158 }
10159 if (eep_config->max_tag_qng > eep_config->max_total_qng) {
10160 eep_config->max_tag_qng = eep_config->max_total_qng;
10161 }
10162 if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) {
10163 eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC;
10164 }
10165 asc_dvc->max_total_qng = eep_config->max_total_qng;
10166 if ((eep_config->use_cmd_qng & eep_config->disc_enable) !=
10167 eep_config->use_cmd_qng) {
10168 eep_config->disc_enable = eep_config->use_cmd_qng;
10169 warn_code |= ASC_WARN_CMD_QNG_CONFLICT;
10170 }
10171 ASC_EEP_SET_CHIP_ID(eep_config,
10172 ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID);
10173 asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config);
10174 if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) &&
10175 !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) {
10176 asc_dvc->min_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX;
10177 }
10178
10179 for (i = 0; i <= ASC_MAX_TID; i++) {
10180 asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i];
10181 asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng;
10182 asc_dvc->cfg->sdtr_period_offset[i] =
10183 (uchar)(ASC_DEF_SDTR_OFFSET |
10184 (asc_dvc->min_sdtr_index << 4));
10185 }
10186 eep_config->cfg_msw = AscGetChipCfgMsw(iop_base);
10187 if (write_eep) {
10188 if ((i = AscSetEEPConfig(iop_base, eep_config,
10189 asc_dvc->bus_type)) != 0) {
10190 ASC_PRINT1
10191 ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n",
10192 i);
10193 } else {
10194 ASC_PRINT
10195 ("AscInitFromEEP: Successfully re-wrote EEPROM.\n");
10196 }
10197 }
10198 return (warn_code);
10199 }
10200
10201 static int __devinit AscInitGetConfig(struct Scsi_Host *shost)
10202 {
10203 struct asc_board *board = shost_priv(shost);
10204 ASC_DVC_VAR *asc_dvc = &board->dvc_var.asc_dvc_var;
10205 unsigned short warn_code = 0;
10206
10207 asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG;
10208 if (asc_dvc->err_code != 0)
10209 return asc_dvc->err_code;
10210
10211 if (AscFindSignature(asc_dvc->iop_base)) {
10212 warn_code |= AscInitAscDvcVar(asc_dvc);
10213 warn_code |= AscInitFromEEP(asc_dvc);
10214 asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG;
10215 if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT)
10216 asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT;
10217 } else {
10218 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE;
10219 }
10220
10221 switch (warn_code) {
10222 case 0: /* No error */
10223 break;
10224 case ASC_WARN_IO_PORT_ROTATE:
10225 shost_printk(KERN_WARNING, shost, "I/O port address "
10226 "modified\n");
10227 break;
10228 case ASC_WARN_AUTO_CONFIG:
10229 shost_printk(KERN_WARNING, shost, "I/O port increment switch "
10230 "enabled\n");
10231 break;
10232 case ASC_WARN_EEPROM_CHKSUM:
10233 shost_printk(KERN_WARNING, shost, "EEPROM checksum error\n");
10234 break;
10235 case ASC_WARN_IRQ_MODIFIED:
10236 shost_printk(KERN_WARNING, shost, "IRQ modified\n");
10237 break;
10238 case ASC_WARN_CMD_QNG_CONFLICT:
10239 shost_printk(KERN_WARNING, shost, "tag queuing enabled w/o "
10240 "disconnects\n");
10241 break;
10242 default:
10243 shost_printk(KERN_WARNING, shost, "unknown warning: 0x%x\n",
10244 warn_code);
10245 break;
10246 }
10247
10248 if (asc_dvc->err_code != 0)
10249 shost_printk(KERN_ERR, shost, "error 0x%x at init_state "
10250 "0x%x\n", asc_dvc->err_code, asc_dvc->init_state);
10251
10252 return asc_dvc->err_code;
10253 }
10254
10255 static int __devinit AscInitSetConfig(struct pci_dev *pdev, struct Scsi_Host *shost)
10256 {
10257 struct asc_board *board = shost_priv(shost);
10258 ASC_DVC_VAR *asc_dvc = &board->dvc_var.asc_dvc_var;
10259 PortAddr iop_base = asc_dvc->iop_base;
10260 unsigned short cfg_msw;
10261 unsigned short warn_code = 0;
10262
10263 asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG;
10264 if (asc_dvc->err_code != 0)
10265 return asc_dvc->err_code;
10266 if (!AscFindSignature(asc_dvc->iop_base)) {
10267 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE;
10268 return asc_dvc->err_code;
10269 }
10270
10271 cfg_msw = AscGetChipCfgMsw(iop_base);
10272 if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) {
10273 cfg_msw &= ~ASC_CFG_MSW_CLR_MASK;
10274 warn_code |= ASC_WARN_CFG_MSW_RECOVER;
10275 AscSetChipCfgMsw(iop_base, cfg_msw);
10276 }
10277 if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) !=
10278 asc_dvc->cfg->cmd_qng_enabled) {
10279 asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled;
10280 warn_code |= ASC_WARN_CMD_QNG_CONFLICT;
10281 }
10282 if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) {
10283 warn_code |= ASC_WARN_AUTO_CONFIG;
10284 }
10285 #ifdef CONFIG_PCI
10286 if (asc_dvc->bus_type & ASC_IS_PCI) {
10287 cfg_msw &= 0xFFC0;
10288 AscSetChipCfgMsw(iop_base, cfg_msw);
10289 if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) {
10290 } else {
10291 if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) ||
10292 (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) {
10293 asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB;
10294 asc_dvc->bug_fix_cntl |=
10295 ASC_BUG_FIX_ASYN_USE_SYN;
10296 }
10297 }
10298 } else
10299 #endif /* CONFIG_PCI */
10300 if (asc_dvc->bus_type == ASC_IS_ISAPNP) {
10301 if (AscGetChipVersion(iop_base, asc_dvc->bus_type)
10302 == ASC_CHIP_VER_ASYN_BUG) {
10303 asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN;
10304 }
10305 }
10306 if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) !=
10307 asc_dvc->cfg->chip_scsi_id) {
10308 asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID;
10309 }
10310 #ifdef CONFIG_ISA
10311 if (asc_dvc->bus_type & ASC_IS_ISA) {
10312 AscSetIsaDmaChannel(iop_base, asc_dvc->cfg->isa_dma_channel);
10313 AscSetIsaDmaSpeed(iop_base, asc_dvc->cfg->isa_dma_speed);
10314 }
10315 #endif /* CONFIG_ISA */
10316
10317 asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG;
10318
10319 switch (warn_code) {
10320 case 0: /* No error. */
10321 break;
10322 case ASC_WARN_IO_PORT_ROTATE:
10323 shost_printk(KERN_WARNING, shost, "I/O port address "
10324 "modified\n");
10325 break;
10326 case ASC_WARN_AUTO_CONFIG:
10327 shost_printk(KERN_WARNING, shost, "I/O port increment switch "
10328 "enabled\n");
10329 break;
10330 case ASC_WARN_EEPROM_CHKSUM:
10331 shost_printk(KERN_WARNING, shost, "EEPROM checksum error\n");
10332 break;
10333 case ASC_WARN_IRQ_MODIFIED:
10334 shost_printk(KERN_WARNING, shost, "IRQ modified\n");
10335 break;
10336 case ASC_WARN_CMD_QNG_CONFLICT:
10337 shost_printk(KERN_WARNING, shost, "tag queuing w/o "
10338 "disconnects\n");
10339 break;
10340 default:
10341 shost_printk(KERN_WARNING, shost, "unknown warning: 0x%x\n",
10342 warn_code);
10343 break;
10344 }
10345
10346 if (asc_dvc->err_code != 0)
10347 shost_printk(KERN_ERR, shost, "error 0x%x at init_state "
10348 "0x%x\n", asc_dvc->err_code, asc_dvc->init_state);
10349
10350 return asc_dvc->err_code;
10351 }
10352
10353 /*
10354 * EEPROM Configuration.
10355 *
10356 * All drivers should use this structure to set the default EEPROM
10357 * configuration. The BIOS now uses this structure when it is built.
10358 * Additional structure information can be found in a_condor.h where
10359 * the structure is defined.
10360 *
10361 * The *_Field_IsChar structs are needed to correct for endianness.
10362 * These values are read from the board 16 bits at a time directly
10363 * into the structs. Because some fields are char, the values will be
10364 * in the wrong order. The *_Field_IsChar tells when to flip the
10365 * bytes. Data read and written to PCI memory is automatically swapped
10366 * on big-endian platforms so char fields read as words are actually being
10367 * unswapped on big-endian platforms.
10368 */
10369 static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config __devinitdata = {
10370 ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */
10371 0x0000, /* cfg_msw */
10372 0xFFFF, /* disc_enable */
10373 0xFFFF, /* wdtr_able */
10374 0xFFFF, /* sdtr_able */
10375 0xFFFF, /* start_motor */
10376 0xFFFF, /* tagqng_able */
10377 0xFFFF, /* bios_scan */
10378 0, /* scam_tolerant */
10379 7, /* adapter_scsi_id */
10380 0, /* bios_boot_delay */
10381 3, /* scsi_reset_delay */
10382 0, /* bios_id_lun */
10383 0, /* termination */
10384 0, /* reserved1 */
10385 0xFFE7, /* bios_ctrl */
10386 0xFFFF, /* ultra_able */
10387 0, /* reserved2 */
10388 ASC_DEF_MAX_HOST_QNG, /* max_host_qng */
10389 ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */
10390 0, /* dvc_cntl */
10391 0, /* bug_fix */
10392 0, /* serial_number_word1 */
10393 0, /* serial_number_word2 */
10394 0, /* serial_number_word3 */
10395 0, /* check_sum */
10396 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
10397 , /* oem_name[16] */
10398 0, /* dvc_err_code */
10399 0, /* adv_err_code */
10400 0, /* adv_err_addr */
10401 0, /* saved_dvc_err_code */
10402 0, /* saved_adv_err_code */
10403 0, /* saved_adv_err_addr */
10404 0 /* num_of_err */
10405 };
10406
10407 static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar __devinitdata = {
10408 0, /* cfg_lsw */
10409 0, /* cfg_msw */
10410 0, /* -disc_enable */
10411 0, /* wdtr_able */
10412 0, /* sdtr_able */
10413 0, /* start_motor */
10414 0, /* tagqng_able */
10415 0, /* bios_scan */
10416 0, /* scam_tolerant */
10417 1, /* adapter_scsi_id */
10418 1, /* bios_boot_delay */
10419 1, /* scsi_reset_delay */
10420 1, /* bios_id_lun */
10421 1, /* termination */
10422 1, /* reserved1 */
10423 0, /* bios_ctrl */
10424 0, /* ultra_able */
10425 0, /* reserved2 */
10426 1, /* max_host_qng */
10427 1, /* max_dvc_qng */
10428 0, /* dvc_cntl */
10429 0, /* bug_fix */
10430 0, /* serial_number_word1 */
10431 0, /* serial_number_word2 */
10432 0, /* serial_number_word3 */
10433 0, /* check_sum */
10434 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
10435 , /* oem_name[16] */
10436 0, /* dvc_err_code */
10437 0, /* adv_err_code */
10438 0, /* adv_err_addr */
10439 0, /* saved_dvc_err_code */
10440 0, /* saved_adv_err_code */
10441 0, /* saved_adv_err_addr */
10442 0 /* num_of_err */
10443 };
10444
10445 static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config __devinitdata = {
10446 ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */
10447 0x0000, /* 01 cfg_msw */
10448 0xFFFF, /* 02 disc_enable */
10449 0xFFFF, /* 03 wdtr_able */
10450 0x4444, /* 04 sdtr_speed1 */
10451 0xFFFF, /* 05 start_motor */
10452 0xFFFF, /* 06 tagqng_able */
10453 0xFFFF, /* 07 bios_scan */
10454 0, /* 08 scam_tolerant */
10455 7, /* 09 adapter_scsi_id */
10456 0, /* bios_boot_delay */
10457 3, /* 10 scsi_reset_delay */
10458 0, /* bios_id_lun */
10459 0, /* 11 termination_se */
10460 0, /* termination_lvd */
10461 0xFFE7, /* 12 bios_ctrl */
10462 0x4444, /* 13 sdtr_speed2 */
10463 0x4444, /* 14 sdtr_speed3 */
10464 ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */
10465 ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */
10466 0, /* 16 dvc_cntl */
10467 0x4444, /* 17 sdtr_speed4 */
10468 0, /* 18 serial_number_word1 */
10469 0, /* 19 serial_number_word2 */
10470 0, /* 20 serial_number_word3 */
10471 0, /* 21 check_sum */
10472 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
10473 , /* 22-29 oem_name[16] */
10474 0, /* 30 dvc_err_code */
10475 0, /* 31 adv_err_code */
10476 0, /* 32 adv_err_addr */
10477 0, /* 33 saved_dvc_err_code */
10478 0, /* 34 saved_adv_err_code */
10479 0, /* 35 saved_adv_err_addr */
10480 0, /* 36 reserved */
10481 0, /* 37 reserved */
10482 0, /* 38 reserved */
10483 0, /* 39 reserved */
10484 0, /* 40 reserved */
10485 0, /* 41 reserved */
10486 0, /* 42 reserved */
10487 0, /* 43 reserved */
10488 0, /* 44 reserved */
10489 0, /* 45 reserved */
10490 0, /* 46 reserved */
10491 0, /* 47 reserved */
10492 0, /* 48 reserved */
10493 0, /* 49 reserved */
10494 0, /* 50 reserved */
10495 0, /* 51 reserved */
10496 0, /* 52 reserved */
10497 0, /* 53 reserved */
10498 0, /* 54 reserved */
10499 0, /* 55 reserved */
10500 0, /* 56 cisptr_lsw */
10501 0, /* 57 cisprt_msw */
10502 PCI_VENDOR_ID_ASP, /* 58 subsysvid */
10503 PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */
10504 0, /* 60 reserved */
10505 0, /* 61 reserved */
10506 0, /* 62 reserved */
10507 0 /* 63 reserved */
10508 };
10509
10510 static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar __devinitdata = {
10511 0, /* 00 cfg_lsw */
10512 0, /* 01 cfg_msw */
10513 0, /* 02 disc_enable */
10514 0, /* 03 wdtr_able */
10515 0, /* 04 sdtr_speed1 */
10516 0, /* 05 start_motor */
10517 0, /* 06 tagqng_able */
10518 0, /* 07 bios_scan */
10519 0, /* 08 scam_tolerant */
10520 1, /* 09 adapter_scsi_id */
10521 1, /* bios_boot_delay */
10522 1, /* 10 scsi_reset_delay */
10523 1, /* bios_id_lun */
10524 1, /* 11 termination_se */
10525 1, /* termination_lvd */
10526 0, /* 12 bios_ctrl */
10527 0, /* 13 sdtr_speed2 */
10528 0, /* 14 sdtr_speed3 */
10529 1, /* 15 max_host_qng */
10530 1, /* max_dvc_qng */
10531 0, /* 16 dvc_cntl */
10532 0, /* 17 sdtr_speed4 */
10533 0, /* 18 serial_number_word1 */
10534 0, /* 19 serial_number_word2 */
10535 0, /* 20 serial_number_word3 */
10536 0, /* 21 check_sum */
10537 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
10538 , /* 22-29 oem_name[16] */
10539 0, /* 30 dvc_err_code */
10540 0, /* 31 adv_err_code */
10541 0, /* 32 adv_err_addr */
10542 0, /* 33 saved_dvc_err_code */
10543 0, /* 34 saved_adv_err_code */
10544 0, /* 35 saved_adv_err_addr */
10545 0, /* 36 reserved */
10546 0, /* 37 reserved */
10547 0, /* 38 reserved */
10548 0, /* 39 reserved */
10549 0, /* 40 reserved */
10550 0, /* 41 reserved */
10551 0, /* 42 reserved */
10552 0, /* 43 reserved */
10553 0, /* 44 reserved */
10554 0, /* 45 reserved */
10555 0, /* 46 reserved */
10556 0, /* 47 reserved */
10557 0, /* 48 reserved */
10558 0, /* 49 reserved */
10559 0, /* 50 reserved */
10560 0, /* 51 reserved */
10561 0, /* 52 reserved */
10562 0, /* 53 reserved */
10563 0, /* 54 reserved */
10564 0, /* 55 reserved */
10565 0, /* 56 cisptr_lsw */
10566 0, /* 57 cisprt_msw */
10567 0, /* 58 subsysvid */
10568 0, /* 59 subsysid */
10569 0, /* 60 reserved */
10570 0, /* 61 reserved */
10571 0, /* 62 reserved */
10572 0 /* 63 reserved */
10573 };
10574
10575 static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config __devinitdata = {
10576 ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */
10577 0x0000, /* 01 cfg_msw */
10578 0xFFFF, /* 02 disc_enable */
10579 0xFFFF, /* 03 wdtr_able */
10580 0x5555, /* 04 sdtr_speed1 */
10581 0xFFFF, /* 05 start_motor */
10582 0xFFFF, /* 06 tagqng_able */
10583 0xFFFF, /* 07 bios_scan */
10584 0, /* 08 scam_tolerant */
10585 7, /* 09 adapter_scsi_id */
10586 0, /* bios_boot_delay */
10587 3, /* 10 scsi_reset_delay */
10588 0, /* bios_id_lun */
10589 0, /* 11 termination_se */
10590 0, /* termination_lvd */
10591 0xFFE7, /* 12 bios_ctrl */
10592 0x5555, /* 13 sdtr_speed2 */
10593 0x5555, /* 14 sdtr_speed3 */
10594 ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */
10595 ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */
10596 0, /* 16 dvc_cntl */
10597 0x5555, /* 17 sdtr_speed4 */
10598 0, /* 18 serial_number_word1 */
10599 0, /* 19 serial_number_word2 */
10600 0, /* 20 serial_number_word3 */
10601 0, /* 21 check_sum */
10602 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
10603 , /* 22-29 oem_name[16] */
10604 0, /* 30 dvc_err_code */
10605 0, /* 31 adv_err_code */
10606 0, /* 32 adv_err_addr */
10607 0, /* 33 saved_dvc_err_code */
10608 0, /* 34 saved_adv_err_code */
10609 0, /* 35 saved_adv_err_addr */
10610 0, /* 36 reserved */
10611 0, /* 37 reserved */
10612 0, /* 38 reserved */
10613 0, /* 39 reserved */
10614 0, /* 40 reserved */
10615 0, /* 41 reserved */
10616 0, /* 42 reserved */
10617 0, /* 43 reserved */
10618 0, /* 44 reserved */
10619 0, /* 45 reserved */
10620 0, /* 46 reserved */
10621 0, /* 47 reserved */
10622 0, /* 48 reserved */
10623 0, /* 49 reserved */
10624 0, /* 50 reserved */
10625 0, /* 51 reserved */
10626 0, /* 52 reserved */
10627 0, /* 53 reserved */
10628 0, /* 54 reserved */
10629 0, /* 55 reserved */
10630 0, /* 56 cisptr_lsw */
10631 0, /* 57 cisprt_msw */
10632 PCI_VENDOR_ID_ASP, /* 58 subsysvid */
10633 PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */
10634 0, /* 60 reserved */
10635 0, /* 61 reserved */
10636 0, /* 62 reserved */
10637 0 /* 63 reserved */
10638 };
10639
10640 static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = {
10641 0, /* 00 cfg_lsw */
10642 0, /* 01 cfg_msw */
10643 0, /* 02 disc_enable */
10644 0, /* 03 wdtr_able */
10645 0, /* 04 sdtr_speed1 */
10646 0, /* 05 start_motor */
10647 0, /* 06 tagqng_able */
10648 0, /* 07 bios_scan */
10649 0, /* 08 scam_tolerant */
10650 1, /* 09 adapter_scsi_id */
10651 1, /* bios_boot_delay */
10652 1, /* 10 scsi_reset_delay */
10653 1, /* bios_id_lun */
10654 1, /* 11 termination_se */
10655 1, /* termination_lvd */
10656 0, /* 12 bios_ctrl */
10657 0, /* 13 sdtr_speed2 */
10658 0, /* 14 sdtr_speed3 */
10659 1, /* 15 max_host_qng */
10660 1, /* max_dvc_qng */
10661 0, /* 16 dvc_cntl */
10662 0, /* 17 sdtr_speed4 */
10663 0, /* 18 serial_number_word1 */
10664 0, /* 19 serial_number_word2 */
10665 0, /* 20 serial_number_word3 */
10666 0, /* 21 check_sum */
10667 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
10668 , /* 22-29 oem_name[16] */
10669 0, /* 30 dvc_err_code */
10670 0, /* 31 adv_err_code */
10671 0, /* 32 adv_err_addr */
10672 0, /* 33 saved_dvc_err_code */
10673 0, /* 34 saved_adv_err_code */
10674 0, /* 35 saved_adv_err_addr */
10675 0, /* 36 reserved */
10676 0, /* 37 reserved */
10677 0, /* 38 reserved */
10678 0, /* 39 reserved */
10679 0, /* 40 reserved */
10680 0, /* 41 reserved */
10681 0, /* 42 reserved */
10682 0, /* 43 reserved */
10683 0, /* 44 reserved */
10684 0, /* 45 reserved */
10685 0, /* 46 reserved */
10686 0, /* 47 reserved */
10687 0, /* 48 reserved */
10688 0, /* 49 reserved */
10689 0, /* 50 reserved */
10690 0, /* 51 reserved */
10691 0, /* 52 reserved */
10692 0, /* 53 reserved */
10693 0, /* 54 reserved */
10694 0, /* 55 reserved */
10695 0, /* 56 cisptr_lsw */
10696 0, /* 57 cisprt_msw */
10697 0, /* 58 subsysvid */
10698 0, /* 59 subsysid */
10699 0, /* 60 reserved */
10700 0, /* 61 reserved */
10701 0, /* 62 reserved */
10702 0 /* 63 reserved */
10703 };
10704
10705 #ifdef CONFIG_PCI
10706 /*
10707 * Wait for EEPROM command to complete
10708 */
10709 static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base)
10710 {
10711 int eep_delay_ms;
10712
10713 for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) {
10714 if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) &
10715 ASC_EEP_CMD_DONE) {
10716 break;
10717 }
10718 mdelay(1);
10719 }
10720 if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) ==
10721 0)
10722 BUG();
10723 }
10724
10725 /*
10726 * Read the EEPROM from specified location
10727 */
10728 static ushort __devinit AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr)
10729 {
10730 AdvWriteWordRegister(iop_base, IOPW_EE_CMD,
10731 ASC_EEP_CMD_READ | eep_word_addr);
10732 AdvWaitEEPCmd(iop_base);
10733 return AdvReadWordRegister(iop_base, IOPW_EE_DATA);
10734 }
10735
10736 /*
10737 * Write the EEPROM from 'cfg_buf'.
10738 */
10739 static void __devinit
10740 AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf)
10741 {
10742 ushort *wbuf;
10743 ushort addr, chksum;
10744 ushort *charfields;
10745
10746 wbuf = (ushort *)cfg_buf;
10747 charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar;
10748 chksum = 0;
10749
10750 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE);
10751 AdvWaitEEPCmd(iop_base);
10752
10753 /*
10754 * Write EEPROM from word 0 to word 20.
10755 */
10756 for (addr = ADV_EEP_DVC_CFG_BEGIN;
10757 addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) {
10758 ushort word;
10759
10760 if (*charfields++) {
10761 word = cpu_to_le16(*wbuf);
10762 } else {
10763 word = *wbuf;
10764 }
10765 chksum += *wbuf; /* Checksum is calculated from word values. */
10766 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word);
10767 AdvWriteWordRegister(iop_base, IOPW_EE_CMD,
10768 ASC_EEP_CMD_WRITE | addr);
10769 AdvWaitEEPCmd(iop_base);
10770 mdelay(ADV_EEP_DELAY_MS);
10771 }
10772
10773 /*
10774 * Write EEPROM checksum at word 21.
10775 */
10776 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum);
10777 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr);
10778 AdvWaitEEPCmd(iop_base);
10779 wbuf++;
10780 charfields++;
10781
10782 /*
10783 * Write EEPROM OEM name at words 22 to 29.
10784 */
10785 for (addr = ADV_EEP_DVC_CTL_BEGIN;
10786 addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) {
10787 ushort word;
10788
10789 if (*charfields++) {
10790 word = cpu_to_le16(*wbuf);
10791 } else {
10792 word = *wbuf;
10793 }
10794 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word);
10795 AdvWriteWordRegister(iop_base, IOPW_EE_CMD,
10796 ASC_EEP_CMD_WRITE | addr);
10797 AdvWaitEEPCmd(iop_base);
10798 }
10799 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE);
10800 AdvWaitEEPCmd(iop_base);
10801 }
10802
10803 /*
10804 * Write the EEPROM from 'cfg_buf'.
10805 */
10806 static void __devinit
10807 AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf)
10808 {
10809 ushort *wbuf;
10810 ushort *charfields;
10811 ushort addr, chksum;
10812
10813 wbuf = (ushort *)cfg_buf;
10814 charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar;
10815 chksum = 0;
10816
10817 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE);
10818 AdvWaitEEPCmd(iop_base);
10819
10820 /*
10821 * Write EEPROM from word 0 to word 20.
10822 */
10823 for (addr = ADV_EEP_DVC_CFG_BEGIN;
10824 addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) {
10825 ushort word;
10826
10827 if (*charfields++) {
10828 word = cpu_to_le16(*wbuf);
10829 } else {
10830 word = *wbuf;
10831 }
10832 chksum += *wbuf; /* Checksum is calculated from word values. */
10833 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word);
10834 AdvWriteWordRegister(iop_base, IOPW_EE_CMD,
10835 ASC_EEP_CMD_WRITE | addr);
10836 AdvWaitEEPCmd(iop_base);
10837 mdelay(ADV_EEP_DELAY_MS);
10838 }
10839
10840 /*
10841 * Write EEPROM checksum at word 21.
10842 */
10843 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum);
10844 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr);
10845 AdvWaitEEPCmd(iop_base);
10846 wbuf++;
10847 charfields++;
10848
10849 /*
10850 * Write EEPROM OEM name at words 22 to 29.
10851 */
10852 for (addr = ADV_EEP_DVC_CTL_BEGIN;
10853 addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) {
10854 ushort word;
10855
10856 if (*charfields++) {
10857 word = cpu_to_le16(*wbuf);
10858 } else {
10859 word = *wbuf;
10860 }
10861 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word);
10862 AdvWriteWordRegister(iop_base, IOPW_EE_CMD,
10863 ASC_EEP_CMD_WRITE | addr);
10864 AdvWaitEEPCmd(iop_base);
10865 }
10866 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE);
10867 AdvWaitEEPCmd(iop_base);
10868 }
10869
10870 /*
10871 * Write the EEPROM from 'cfg_buf'.
10872 */
10873 static void __devinit
10874 AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf)
10875 {
10876 ushort *wbuf;
10877 ushort *charfields;
10878 ushort addr, chksum;
10879
10880 wbuf = (ushort *)cfg_buf;
10881 charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar;
10882 chksum = 0;
10883
10884 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE);
10885 AdvWaitEEPCmd(iop_base);
10886
10887 /*
10888 * Write EEPROM from word 0 to word 20.
10889 */
10890 for (addr = ADV_EEP_DVC_CFG_BEGIN;
10891 addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) {
10892 ushort word;
10893
10894 if (*charfields++) {
10895 word = cpu_to_le16(*wbuf);
10896 } else {
10897 word = *wbuf;
10898 }
10899 chksum += *wbuf; /* Checksum is calculated from word values. */
10900 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word);
10901 AdvWriteWordRegister(iop_base, IOPW_EE_CMD,
10902 ASC_EEP_CMD_WRITE | addr);
10903 AdvWaitEEPCmd(iop_base);
10904 mdelay(ADV_EEP_DELAY_MS);
10905 }
10906
10907 /*
10908 * Write EEPROM checksum at word 21.
10909 */
10910 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum);
10911 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr);
10912 AdvWaitEEPCmd(iop_base);
10913 wbuf++;
10914 charfields++;
10915
10916 /*
10917 * Write EEPROM OEM name at words 22 to 29.
10918 */
10919 for (addr = ADV_EEP_DVC_CTL_BEGIN;
10920 addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) {
10921 ushort word;
10922
10923 if (*charfields++) {
10924 word = cpu_to_le16(*wbuf);
10925 } else {
10926 word = *wbuf;
10927 }
10928 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word);
10929 AdvWriteWordRegister(iop_base, IOPW_EE_CMD,
10930 ASC_EEP_CMD_WRITE | addr);
10931 AdvWaitEEPCmd(iop_base);
10932 }
10933 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE);
10934 AdvWaitEEPCmd(iop_base);
10935 }
10936
10937 /*
10938 * Read EEPROM configuration into the specified buffer.
10939 *
10940 * Return a checksum based on the EEPROM configuration read.
10941 */
10942 static ushort __devinit
10943 AdvGet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf)
10944 {
10945 ushort wval, chksum;
10946 ushort *wbuf;
10947 int eep_addr;
10948 ushort *charfields;
10949
10950 charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar;
10951 wbuf = (ushort *)cfg_buf;
10952 chksum = 0;
10953
10954 for (eep_addr = ADV_EEP_DVC_CFG_BEGIN;
10955 eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) {
10956 wval = AdvReadEEPWord(iop_base, eep_addr);
10957 chksum += wval; /* Checksum is calculated from word values. */
10958 if (*charfields++) {
10959 *wbuf = le16_to_cpu(wval);
10960 } else {
10961 *wbuf = wval;
10962 }
10963 }
10964 /* Read checksum word. */
10965 *wbuf = AdvReadEEPWord(iop_base, eep_addr);
10966 wbuf++;
10967 charfields++;
10968
10969 /* Read rest of EEPROM not covered by the checksum. */
10970 for (eep_addr = ADV_EEP_DVC_CTL_BEGIN;
10971 eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) {
10972 *wbuf = AdvReadEEPWord(iop_base, eep_addr);
10973 if (*charfields++) {
10974 *wbuf = le16_to_cpu(*wbuf);
10975 }
10976 }
10977 return chksum;
10978 }
10979
10980 /*
10981 * Read EEPROM configuration into the specified buffer.
10982 *
10983 * Return a checksum based on the EEPROM configuration read.
10984 */
10985 static ushort __devinit
10986 AdvGet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf)
10987 {
10988 ushort wval, chksum;
10989 ushort *wbuf;
10990 int eep_addr;
10991 ushort *charfields;
10992
10993 charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar;
10994 wbuf = (ushort *)cfg_buf;
10995 chksum = 0;
10996
10997 for (eep_addr = ADV_EEP_DVC_CFG_BEGIN;
10998 eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) {
10999 wval = AdvReadEEPWord(iop_base, eep_addr);
11000 chksum += wval; /* Checksum is calculated from word values. */
11001 if (*charfields++) {
11002 *wbuf = le16_to_cpu(wval);
11003 } else {
11004 *wbuf = wval;
11005 }
11006 }
11007 /* Read checksum word. */
11008 *wbuf = AdvReadEEPWord(iop_base, eep_addr);
11009 wbuf++;
11010 charfields++;
11011
11012 /* Read rest of EEPROM not covered by the checksum. */
11013 for (eep_addr = ADV_EEP_DVC_CTL_BEGIN;
11014 eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) {
11015 *wbuf = AdvReadEEPWord(iop_base, eep_addr);
11016 if (*charfields++) {
11017 *wbuf = le16_to_cpu(*wbuf);
11018 }
11019 }
11020 return chksum;
11021 }
11022
11023 /*
11024 * Read EEPROM configuration into the specified buffer.
11025 *
11026 * Return a checksum based on the EEPROM configuration read.
11027 */
11028 static ushort __devinit
11029 AdvGet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf)
11030 {
11031 ushort wval, chksum;
11032 ushort *wbuf;
11033 int eep_addr;
11034 ushort *charfields;
11035
11036 charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar;
11037 wbuf = (ushort *)cfg_buf;
11038 chksum = 0;
11039
11040 for (eep_addr = ADV_EEP_DVC_CFG_BEGIN;
11041 eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) {
11042 wval = AdvReadEEPWord(iop_base, eep_addr);
11043 chksum += wval; /* Checksum is calculated from word values. */
11044 if (*charfields++) {
11045 *wbuf = le16_to_cpu(wval);
11046 } else {
11047 *wbuf = wval;
11048 }
11049 }
11050 /* Read checksum word. */
11051 *wbuf = AdvReadEEPWord(iop_base, eep_addr);
11052 wbuf++;
11053 charfields++;
11054
11055 /* Read rest of EEPROM not covered by the checksum. */
11056 for (eep_addr = ADV_EEP_DVC_CTL_BEGIN;
11057 eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) {
11058 *wbuf = AdvReadEEPWord(iop_base, eep_addr);
11059 if (*charfields++) {
11060 *wbuf = le16_to_cpu(*wbuf);
11061 }
11062 }
11063 return chksum;
11064 }
11065
11066 /*
11067 * Read the board's EEPROM configuration. Set fields in ADV_DVC_VAR and
11068 * ADV_DVC_CFG based on the EEPROM settings. The chip is stopped while
11069 * all of this is done.
11070 *
11071 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR.
11072 *
11073 * For a non-fatal error return a warning code. If there are no warnings
11074 * then 0 is returned.
11075 *
11076 * Note: Chip is stopped on entry.
11077 */
11078 static int __devinit AdvInitFrom3550EEP(ADV_DVC_VAR *asc_dvc)
11079 {
11080 AdvPortAddr iop_base;
11081 ushort warn_code;
11082 ADVEEP_3550_CONFIG eep_config;
11083
11084 iop_base = asc_dvc->iop_base;
11085
11086 warn_code = 0;
11087
11088 /*
11089 * Read the board's EEPROM configuration.
11090 *
11091 * Set default values if a bad checksum is found.
11092 */
11093 if (AdvGet3550EEPConfig(iop_base, &eep_config) != eep_config.check_sum) {
11094 warn_code |= ASC_WARN_EEPROM_CHKSUM;
11095
11096 /*
11097 * Set EEPROM default values.
11098 */
11099 memcpy(&eep_config, &Default_3550_EEPROM_Config,
11100 sizeof(ADVEEP_3550_CONFIG));
11101
11102 /*
11103 * Assume the 6 byte board serial number that was read from
11104 * EEPROM is correct even if the EEPROM checksum failed.
11105 */
11106 eep_config.serial_number_word3 =
11107 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 1);
11108
11109 eep_config.serial_number_word2 =
11110 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 2);
11111
11112 eep_config.serial_number_word1 =
11113 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 3);
11114
11115 AdvSet3550EEPConfig(iop_base, &eep_config);
11116 }
11117 /*
11118 * Set ASC_DVC_VAR and ASC_DVC_CFG variables from the
11119 * EEPROM configuration that was read.
11120 *
11121 * This is the mapping of EEPROM fields to Adv Library fields.
11122 */
11123 asc_dvc->wdtr_able = eep_config.wdtr_able;
11124 asc_dvc->sdtr_able = eep_config.sdtr_able;
11125 asc_dvc->ultra_able = eep_config.ultra_able;
11126 asc_dvc->tagqng_able = eep_config.tagqng_able;
11127 asc_dvc->cfg->disc_enable = eep_config.disc_enable;
11128 asc_dvc->max_host_qng = eep_config.max_host_qng;
11129 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng;
11130 asc_dvc->chip_scsi_id = (eep_config.adapter_scsi_id & ADV_MAX_TID);
11131 asc_dvc->start_motor = eep_config.start_motor;
11132 asc_dvc->scsi_reset_wait = eep_config.scsi_reset_delay;
11133 asc_dvc->bios_ctrl = eep_config.bios_ctrl;
11134 asc_dvc->no_scam = eep_config.scam_tolerant;
11135 asc_dvc->cfg->serial1 = eep_config.serial_number_word1;
11136 asc_dvc->cfg->serial2 = eep_config.serial_number_word2;
11137 asc_dvc->cfg->serial3 = eep_config.serial_number_word3;
11138
11139 /*
11140 * Set the host maximum queuing (max. 253, min. 16) and the per device
11141 * maximum queuing (max. 63, min. 4).
11142 */
11143 if (eep_config.max_host_qng > ASC_DEF_MAX_HOST_QNG) {
11144 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG;
11145 } else if (eep_config.max_host_qng < ASC_DEF_MIN_HOST_QNG) {
11146 /* If the value is zero, assume it is uninitialized. */
11147 if (eep_config.max_host_qng == 0) {
11148 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG;
11149 } else {
11150 eep_config.max_host_qng = ASC_DEF_MIN_HOST_QNG;
11151 }
11152 }
11153
11154 if (eep_config.max_dvc_qng > ASC_DEF_MAX_DVC_QNG) {
11155 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG;
11156 } else if (eep_config.max_dvc_qng < ASC_DEF_MIN_DVC_QNG) {
11157 /* If the value is zero, assume it is uninitialized. */
11158 if (eep_config.max_dvc_qng == 0) {
11159 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG;
11160 } else {
11161 eep_config.max_dvc_qng = ASC_DEF_MIN_DVC_QNG;
11162 }
11163 }
11164
11165 /*
11166 * If 'max_dvc_qng' is greater than 'max_host_qng', then
11167 * set 'max_dvc_qng' to 'max_host_qng'.
11168 */
11169 if (eep_config.max_dvc_qng > eep_config.max_host_qng) {
11170 eep_config.max_dvc_qng = eep_config.max_host_qng;
11171 }
11172
11173 /*
11174 * Set ADV_DVC_VAR 'max_host_qng' and ADV_DVC_VAR 'max_dvc_qng'
11175 * values based on possibly adjusted EEPROM values.
11176 */
11177 asc_dvc->max_host_qng = eep_config.max_host_qng;
11178 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng;
11179
11180 /*
11181 * If the EEPROM 'termination' field is set to automatic (0), then set
11182 * the ADV_DVC_CFG 'termination' field to automatic also.
11183 *
11184 * If the termination is specified with a non-zero 'termination'
11185 * value check that a legal value is set and set the ADV_DVC_CFG
11186 * 'termination' field appropriately.
11187 */
11188 if (eep_config.termination == 0) {
11189 asc_dvc->cfg->termination = 0; /* auto termination */
11190 } else {
11191 /* Enable manual control with low off / high off. */
11192 if (eep_config.termination == 1) {
11193 asc_dvc->cfg->termination = TERM_CTL_SEL;
11194
11195 /* Enable manual control with low off / high on. */
11196 } else if (eep_config.termination == 2) {
11197 asc_dvc->cfg->termination = TERM_CTL_SEL | TERM_CTL_H;
11198
11199 /* Enable manual control with low on / high on. */
11200 } else if (eep_config.termination == 3) {
11201 asc_dvc->cfg->termination =
11202 TERM_CTL_SEL | TERM_CTL_H | TERM_CTL_L;
11203 } else {
11204 /*
11205 * The EEPROM 'termination' field contains a bad value. Use
11206 * automatic termination instead.
11207 */
11208 asc_dvc->cfg->termination = 0;
11209 warn_code |= ASC_WARN_EEPROM_TERMINATION;
11210 }
11211 }
11212
11213 return warn_code;
11214 }
11215
11216 /*
11217 * Read the board's EEPROM configuration. Set fields in ADV_DVC_VAR and
11218 * ADV_DVC_CFG based on the EEPROM settings. The chip is stopped while
11219 * all of this is done.
11220 *
11221 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR.
11222 *
11223 * For a non-fatal error return a warning code. If there are no warnings
11224 * then 0 is returned.
11225 *
11226 * Note: Chip is stopped on entry.
11227 */
11228 static int __devinit AdvInitFrom38C0800EEP(ADV_DVC_VAR *asc_dvc)
11229 {
11230 AdvPortAddr iop_base;
11231 ushort warn_code;
11232 ADVEEP_38C0800_CONFIG eep_config;
11233 uchar tid, termination;
11234 ushort sdtr_speed = 0;
11235
11236 iop_base = asc_dvc->iop_base;
11237
11238 warn_code = 0;
11239
11240 /*
11241 * Read the board's EEPROM configuration.
11242 *
11243 * Set default values if a bad checksum is found.
11244 */
11245 if (AdvGet38C0800EEPConfig(iop_base, &eep_config) !=
11246 eep_config.check_sum) {
11247 warn_code |= ASC_WARN_EEPROM_CHKSUM;
11248
11249 /*
11250 * Set EEPROM default values.
11251 */
11252 memcpy(&eep_config, &Default_38C0800_EEPROM_Config,
11253 sizeof(ADVEEP_38C0800_CONFIG));
11254
11255 /*
11256 * Assume the 6 byte board serial number that was read from
11257 * EEPROM is correct even if the EEPROM checksum failed.
11258 */
11259 eep_config.serial_number_word3 =
11260 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 1);
11261
11262 eep_config.serial_number_word2 =
11263 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 2);
11264
11265 eep_config.serial_number_word1 =
11266 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 3);
11267
11268 AdvSet38C0800EEPConfig(iop_base, &eep_config);
11269 }
11270 /*
11271 * Set ADV_DVC_VAR and ADV_DVC_CFG variables from the
11272 * EEPROM configuration that was read.
11273 *
11274 * This is the mapping of EEPROM fields to Adv Library fields.
11275 */
11276 asc_dvc->wdtr_able = eep_config.wdtr_able;
11277 asc_dvc->sdtr_speed1 = eep_config.sdtr_speed1;
11278 asc_dvc->sdtr_speed2 = eep_config.sdtr_speed2;
11279 asc_dvc->sdtr_speed3 = eep_config.sdtr_speed3;
11280 asc_dvc->sdtr_speed4 = eep_config.sdtr_speed4;
11281 asc_dvc->tagqng_able = eep_config.tagqng_able;
11282 asc_dvc->cfg->disc_enable = eep_config.disc_enable;
11283 asc_dvc->max_host_qng = eep_config.max_host_qng;
11284 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng;
11285 asc_dvc->chip_scsi_id = (eep_config.adapter_scsi_id & ADV_MAX_TID);
11286 asc_dvc->start_motor = eep_config.start_motor;
11287 asc_dvc->scsi_reset_wait = eep_config.scsi_reset_delay;
11288 asc_dvc->bios_ctrl = eep_config.bios_ctrl;
11289 asc_dvc->no_scam = eep_config.scam_tolerant;
11290 asc_dvc->cfg->serial1 = eep_config.serial_number_word1;
11291 asc_dvc->cfg->serial2 = eep_config.serial_number_word2;
11292 asc_dvc->cfg->serial3 = eep_config.serial_number_word3;
11293
11294 /*
11295 * For every Target ID if any of its 'sdtr_speed[1234]' bits
11296 * are set, then set an 'sdtr_able' bit for it.
11297 */
11298 asc_dvc->sdtr_able = 0;
11299 for (tid = 0; tid <= ADV_MAX_TID; tid++) {
11300 if (tid == 0) {
11301 sdtr_speed = asc_dvc->sdtr_speed1;
11302 } else if (tid == 4) {
11303 sdtr_speed = asc_dvc->sdtr_speed2;
11304 } else if (tid == 8) {
11305 sdtr_speed = asc_dvc->sdtr_speed3;
11306 } else if (tid == 12) {
11307 sdtr_speed = asc_dvc->sdtr_speed4;
11308 }
11309 if (sdtr_speed & ADV_MAX_TID) {
11310 asc_dvc->sdtr_able |= (1 << tid);
11311 }
11312 sdtr_speed >>= 4;
11313 }
11314
11315 /*
11316 * Set the host maximum queuing (max. 253, min. 16) and the per device
11317 * maximum queuing (max. 63, min. 4).
11318 */
11319 if (eep_config.max_host_qng > ASC_DEF_MAX_HOST_QNG) {
11320 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG;
11321 } else if (eep_config.max_host_qng < ASC_DEF_MIN_HOST_QNG) {
11322 /* If the value is zero, assume it is uninitialized. */
11323 if (eep_config.max_host_qng == 0) {
11324 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG;
11325 } else {
11326 eep_config.max_host_qng = ASC_DEF_MIN_HOST_QNG;
11327 }
11328 }
11329
11330 if (eep_config.max_dvc_qng > ASC_DEF_MAX_DVC_QNG) {
11331 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG;
11332 } else if (eep_config.max_dvc_qng < ASC_DEF_MIN_DVC_QNG) {
11333 /* If the value is zero, assume it is uninitialized. */
11334 if (eep_config.max_dvc_qng == 0) {
11335 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG;
11336 } else {
11337 eep_config.max_dvc_qng = ASC_DEF_MIN_DVC_QNG;
11338 }
11339 }
11340
11341 /*
11342 * If 'max_dvc_qng' is greater than 'max_host_qng', then
11343 * set 'max_dvc_qng' to 'max_host_qng'.
11344 */
11345 if (eep_config.max_dvc_qng > eep_config.max_host_qng) {
11346 eep_config.max_dvc_qng = eep_config.max_host_qng;
11347 }
11348
11349 /*
11350 * Set ADV_DVC_VAR 'max_host_qng' and ADV_DVC_VAR 'max_dvc_qng'
11351 * values based on possibly adjusted EEPROM values.
11352 */
11353 asc_dvc->max_host_qng = eep_config.max_host_qng;
11354 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng;
11355
11356 /*
11357 * If the EEPROM 'termination' field is set to automatic (0), then set
11358 * the ADV_DVC_CFG 'termination' field to automatic also.
11359 *
11360 * If the termination is specified with a non-zero 'termination'
11361 * value check that a legal value is set and set the ADV_DVC_CFG
11362 * 'termination' field appropriately.
11363 */
11364 if (eep_config.termination_se == 0) {
11365 termination = 0; /* auto termination for SE */
11366 } else {
11367 /* Enable manual control with low off / high off. */
11368 if (eep_config.termination_se == 1) {
11369 termination = 0;
11370
11371 /* Enable manual control with low off / high on. */
11372 } else if (eep_config.termination_se == 2) {
11373 termination = TERM_SE_HI;
11374
11375 /* Enable manual control with low on / high on. */
11376 } else if (eep_config.termination_se == 3) {
11377 termination = TERM_SE;
11378 } else {
11379 /*
11380 * The EEPROM 'termination_se' field contains a bad value.
11381 * Use automatic termination instead.
11382 */
11383 termination = 0;
11384 warn_code |= ASC_WARN_EEPROM_TERMINATION;
11385 }
11386 }
11387
11388 if (eep_config.termination_lvd == 0) {
11389 asc_dvc->cfg->termination = termination; /* auto termination for LVD */
11390 } else {
11391 /* Enable manual control with low off / high off. */
11392 if (eep_config.termination_lvd == 1) {
11393 asc_dvc->cfg->termination = termination;
11394
11395 /* Enable manual control with low off / high on. */
11396 } else if (eep_config.termination_lvd == 2) {
11397 asc_dvc->cfg->termination = termination | TERM_LVD_HI;
11398
11399 /* Enable manual control with low on / high on. */
11400 } else if (eep_config.termination_lvd == 3) {
11401 asc_dvc->cfg->termination = termination | TERM_LVD;
11402 } else {
11403 /*
11404 * The EEPROM 'termination_lvd' field contains a bad value.
11405 * Use automatic termination instead.
11406 */
11407 asc_dvc->cfg->termination = termination;
11408 warn_code |= ASC_WARN_EEPROM_TERMINATION;
11409 }
11410 }
11411
11412 return warn_code;
11413 }
11414
11415 /*
11416 * Read the board's EEPROM configuration. Set fields in ASC_DVC_VAR and
11417 * ASC_DVC_CFG based on the EEPROM settings. The chip is stopped while
11418 * all of this is done.
11419 *
11420 * On failure set the ASC_DVC_VAR field 'err_code' and return ADV_ERROR.
11421 *
11422 * For a non-fatal error return a warning code. If there are no warnings
11423 * then 0 is returned.
11424 *
11425 * Note: Chip is stopped on entry.
11426 */
11427 static int __devinit AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc)
11428 {
11429 AdvPortAddr iop_base;
11430 ushort warn_code;
11431 ADVEEP_38C1600_CONFIG eep_config;
11432 uchar tid, termination;
11433 ushort sdtr_speed = 0;
11434
11435 iop_base = asc_dvc->iop_base;
11436
11437 warn_code = 0;
11438
11439 /*
11440 * Read the board's EEPROM configuration.
11441 *
11442 * Set default values if a bad checksum is found.
11443 */
11444 if (AdvGet38C1600EEPConfig(iop_base, &eep_config) !=
11445 eep_config.check_sum) {
11446 struct pci_dev *pdev = adv_dvc_to_pdev(asc_dvc);
11447 warn_code |= ASC_WARN_EEPROM_CHKSUM;
11448
11449 /*
11450 * Set EEPROM default values.
11451 */
11452 memcpy(&eep_config, &Default_38C1600_EEPROM_Config,
11453 sizeof(ADVEEP_38C1600_CONFIG));
11454
11455 if (PCI_FUNC(pdev->devfn) != 0) {
11456 u8 ints;
11457 /*
11458 * Disable Bit 14 (BIOS_ENABLE) to fix SPARC Ultra 60
11459 * and old Mac system booting problem. The Expansion
11460 * ROM must be disabled in Function 1 for these systems
11461 */
11462 eep_config.cfg_lsw &= ~ADV_EEPROM_BIOS_ENABLE;
11463 /*
11464 * Clear the INTAB (bit 11) if the GPIO 0 input
11465 * indicates the Function 1 interrupt line is wired
11466 * to INTB.
11467 *
11468 * Set/Clear Bit 11 (INTAB) from the GPIO bit 0 input:
11469 * 1 - Function 1 interrupt line wired to INT A.
11470 * 0 - Function 1 interrupt line wired to INT B.
11471 *
11472 * Note: Function 0 is always wired to INTA.
11473 * Put all 5 GPIO bits in input mode and then read
11474 * their input values.
11475 */
11476 AdvWriteByteRegister(iop_base, IOPB_GPIO_CNTL, 0);
11477 ints = AdvReadByteRegister(iop_base, IOPB_GPIO_DATA);
11478 if ((ints & 0x01) == 0)
11479 eep_config.cfg_lsw &= ~ADV_EEPROM_INTAB;
11480 }
11481
11482 /*
11483 * Assume the 6 byte board serial number that was read from
11484 * EEPROM is correct even if the EEPROM checksum failed.
11485 */
11486 eep_config.serial_number_word3 =
11487 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 1);
11488 eep_config.serial_number_word2 =
11489 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 2);
11490 eep_config.serial_number_word1 =
11491 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 3);
11492
11493 AdvSet38C1600EEPConfig(iop_base, &eep_config);
11494 }
11495
11496 /*
11497 * Set ASC_DVC_VAR and ASC_DVC_CFG variables from the
11498 * EEPROM configuration that was read.
11499 *
11500 * This is the mapping of EEPROM fields to Adv Library fields.
11501 */
11502 asc_dvc->wdtr_able = eep_config.wdtr_able;
11503 asc_dvc->sdtr_speed1 = eep_config.sdtr_speed1;
11504 asc_dvc->sdtr_speed2 = eep_config.sdtr_speed2;
11505 asc_dvc->sdtr_speed3 = eep_config.sdtr_speed3;
11506 asc_dvc->sdtr_speed4 = eep_config.sdtr_speed4;
11507 asc_dvc->ppr_able = 0;
11508 asc_dvc->tagqng_able = eep_config.tagqng_able;
11509 asc_dvc->cfg->disc_enable = eep_config.disc_enable;
11510 asc_dvc->max_host_qng = eep_config.max_host_qng;
11511 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng;
11512 asc_dvc->chip_scsi_id = (eep_config.adapter_scsi_id & ASC_MAX_TID);
11513 asc_dvc->start_motor = eep_config.start_motor;
11514 asc_dvc->scsi_reset_wait = eep_config.scsi_reset_delay;
11515 asc_dvc->bios_ctrl = eep_config.bios_ctrl;
11516 asc_dvc->no_scam = eep_config.scam_tolerant;
11517
11518 /*
11519 * For every Target ID if any of its 'sdtr_speed[1234]' bits
11520 * are set, then set an 'sdtr_able' bit for it.
11521 */
11522 asc_dvc->sdtr_able = 0;
11523 for (tid = 0; tid <= ASC_MAX_TID; tid++) {
11524 if (tid == 0) {
11525 sdtr_speed = asc_dvc->sdtr_speed1;
11526 } else if (tid == 4) {
11527 sdtr_speed = asc_dvc->sdtr_speed2;
11528 } else if (tid == 8) {
11529 sdtr_speed = asc_dvc->sdtr_speed3;
11530 } else if (tid == 12) {
11531 sdtr_speed = asc_dvc->sdtr_speed4;
11532 }
11533 if (sdtr_speed & ASC_MAX_TID) {
11534 asc_dvc->sdtr_able |= (1 << tid);
11535 }
11536 sdtr_speed >>= 4;
11537 }
11538
11539 /*
11540 * Set the host maximum queuing (max. 253, min. 16) and the per device
11541 * maximum queuing (max. 63, min. 4).
11542 */
11543 if (eep_config.max_host_qng > ASC_DEF_MAX_HOST_QNG) {
11544 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG;
11545 } else if (eep_config.max_host_qng < ASC_DEF_MIN_HOST_QNG) {
11546 /* If the value is zero, assume it is uninitialized. */
11547 if (eep_config.max_host_qng == 0) {
11548 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG;
11549 } else {
11550 eep_config.max_host_qng = ASC_DEF_MIN_HOST_QNG;
11551 }
11552 }
11553
11554 if (eep_config.max_dvc_qng > ASC_DEF_MAX_DVC_QNG) {
11555 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG;
11556 } else if (eep_config.max_dvc_qng < ASC_DEF_MIN_DVC_QNG) {
11557 /* If the value is zero, assume it is uninitialized. */
11558 if (eep_config.max_dvc_qng == 0) {
11559 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG;
11560 } else {
11561 eep_config.max_dvc_qng = ASC_DEF_MIN_DVC_QNG;
11562 }
11563 }
11564
11565 /*
11566 * If 'max_dvc_qng' is greater than 'max_host_qng', then
11567 * set 'max_dvc_qng' to 'max_host_qng'.
11568 */
11569 if (eep_config.max_dvc_qng > eep_config.max_host_qng) {
11570 eep_config.max_dvc_qng = eep_config.max_host_qng;
11571 }
11572
11573 /*
11574 * Set ASC_DVC_VAR 'max_host_qng' and ASC_DVC_VAR 'max_dvc_qng'
11575 * values based on possibly adjusted EEPROM values.
11576 */
11577 asc_dvc->max_host_qng = eep_config.max_host_qng;
11578 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng;
11579
11580 /*
11581 * If the EEPROM 'termination' field is set to automatic (0), then set
11582 * the ASC_DVC_CFG 'termination' field to automatic also.
11583 *
11584 * If the termination is specified with a non-zero 'termination'
11585 * value check that a legal value is set and set the ASC_DVC_CFG
11586 * 'termination' field appropriately.
11587 */
11588 if (eep_config.termination_se == 0) {
11589 termination = 0; /* auto termination for SE */
11590 } else {
11591 /* Enable manual control with low off / high off. */
11592 if (eep_config.termination_se == 1) {
11593 termination = 0;
11594
11595 /* Enable manual control with low off / high on. */
11596 } else if (eep_config.termination_se == 2) {
11597 termination = TERM_SE_HI;
11598
11599 /* Enable manual control with low on / high on. */
11600 } else if (eep_config.termination_se == 3) {
11601 termination = TERM_SE;
11602 } else {
11603 /*
11604 * The EEPROM 'termination_se' field contains a bad value.
11605 * Use automatic termination instead.
11606 */
11607 termination = 0;
11608 warn_code |= ASC_WARN_EEPROM_TERMINATION;
11609 }
11610 }
11611
11612 if (eep_config.termination_lvd == 0) {
11613 asc_dvc->cfg->termination = termination; /* auto termination for LVD */
11614 } else {
11615 /* Enable manual control with low off / high off. */
11616 if (eep_config.termination_lvd == 1) {
11617 asc_dvc->cfg->termination = termination;
11618
11619 /* Enable manual control with low off / high on. */
11620 } else if (eep_config.termination_lvd == 2) {
11621 asc_dvc->cfg->termination = termination | TERM_LVD_HI;
11622
11623 /* Enable manual control with low on / high on. */
11624 } else if (eep_config.termination_lvd == 3) {
11625 asc_dvc->cfg->termination = termination | TERM_LVD;
11626 } else {
11627 /*
11628 * The EEPROM 'termination_lvd' field contains a bad value.
11629 * Use automatic termination instead.
11630 */
11631 asc_dvc->cfg->termination = termination;
11632 warn_code |= ASC_WARN_EEPROM_TERMINATION;
11633 }
11634 }
11635
11636 return warn_code;
11637 }
11638
11639 /*
11640 * Initialize the ADV_DVC_VAR structure.
11641 *
11642 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR.
11643 *
11644 * For a non-fatal error return a warning code. If there are no warnings
11645 * then 0 is returned.
11646 */
11647 static int __devinit
11648 AdvInitGetConfig(struct pci_dev *pdev, struct Scsi_Host *shost)
11649 {
11650 struct asc_board *board = shost_priv(shost);
11651 ADV_DVC_VAR *asc_dvc = &board->dvc_var.adv_dvc_var;
11652 unsigned short warn_code = 0;
11653 AdvPortAddr iop_base = asc_dvc->iop_base;
11654 u16 cmd;
11655 int status;
11656
11657 asc_dvc->err_code = 0;
11658
11659 /*
11660 * Save the state of the PCI Configuration Command Register
11661 * "Parity Error Response Control" Bit. If the bit is clear (0),
11662 * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore
11663 * DMA parity errors.
11664 */
11665 asc_dvc->cfg->control_flag = 0;
11666 pci_read_config_word(pdev, PCI_COMMAND, &cmd);
11667 if ((cmd & PCI_COMMAND_PARITY) == 0)
11668 asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR;
11669
11670 asc_dvc->cfg->chip_version =
11671 AdvGetChipVersion(iop_base, asc_dvc->bus_type);
11672
11673 ASC_DBG(1, "iopb_chip_id_1: 0x%x 0x%x\n",
11674 (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1),
11675 (ushort)ADV_CHIP_ID_BYTE);
11676
11677 ASC_DBG(1, "iopw_chip_id_0: 0x%x 0x%x\n",
11678 (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0),
11679 (ushort)ADV_CHIP_ID_WORD);
11680
11681 /*
11682 * Reset the chip to start and allow register writes.
11683 */
11684 if (AdvFindSignature(iop_base) == 0) {
11685 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE;
11686 return ADV_ERROR;
11687 } else {
11688 /*
11689 * The caller must set 'chip_type' to a valid setting.
11690 */
11691 if (asc_dvc->chip_type != ADV_CHIP_ASC3550 &&
11692 asc_dvc->chip_type != ADV_CHIP_ASC38C0800 &&
11693 asc_dvc->chip_type != ADV_CHIP_ASC38C1600) {
11694 asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE;
11695 return ADV_ERROR;
11696 }
11697
11698 /*
11699 * Reset Chip.
11700 */
11701 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG,
11702 ADV_CTRL_REG_CMD_RESET);
11703 mdelay(100);
11704 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG,
11705 ADV_CTRL_REG_CMD_WR_IO_REG);
11706
11707 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) {
11708 status = AdvInitFrom38C1600EEP(asc_dvc);
11709 } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) {
11710 status = AdvInitFrom38C0800EEP(asc_dvc);
11711 } else {
11712 status = AdvInitFrom3550EEP(asc_dvc);
11713 }
11714 warn_code |= status;
11715 }
11716
11717 if (warn_code != 0)
11718 shost_printk(KERN_WARNING, shost, "warning: 0x%x\n", warn_code);
11719
11720 if (asc_dvc->err_code)
11721 shost_printk(KERN_ERR, shost, "error code 0x%x\n",
11722 asc_dvc->err_code);
11723
11724 return asc_dvc->err_code;
11725 }
11726 #endif
11727
11728 static struct scsi_host_template advansys_template = {
11729 .proc_name = DRV_NAME,
11730 #ifdef CONFIG_PROC_FS
11731 .proc_info = advansys_proc_info,
11732 #endif
11733 .name = DRV_NAME,
11734 .info = advansys_info,
11735 .queuecommand = advansys_queuecommand,
11736 .eh_bus_reset_handler = advansys_reset,
11737 .bios_param = advansys_biosparam,
11738 .slave_configure = advansys_slave_configure,
11739 /*
11740 * Because the driver may control an ISA adapter 'unchecked_isa_dma'
11741 * must be set. The flag will be cleared in advansys_board_found
11742 * for non-ISA adapters.
11743 */
11744 .unchecked_isa_dma = 1,
11745 /*
11746 * All adapters controlled by this driver are capable of large
11747 * scatter-gather lists. According to the mid-level SCSI documentation
11748 * this obviates any performance gain provided by setting
11749 * 'use_clustering'. But empirically while CPU utilization is increased
11750 * by enabling clustering, I/O throughput increases as well.
11751 */
11752 .use_clustering = ENABLE_CLUSTERING,
11753 };
11754
11755 static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost)
11756 {
11757 struct asc_board *board = shost_priv(shost);
11758 struct adv_dvc_var *adv_dvc = &board->dvc_var.adv_dvc_var;
11759 int req_cnt = 0;
11760 adv_req_t *reqp = NULL;
11761 int sg_cnt = 0;
11762 adv_sgblk_t *sgp;
11763 int warn_code, err_code;
11764
11765 /*
11766 * Allocate buffer carrier structures. The total size
11767 * is about 4 KB, so allocate all at once.
11768 */
11769 adv_dvc->carrier_buf = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL);
11770 ASC_DBG(1, "carrier_buf 0x%p\n", adv_dvc->carrier_buf);
11771
11772 if (!adv_dvc->carrier_buf)
11773 goto kmalloc_failed;
11774
11775 /*
11776 * Allocate up to 'max_host_qng' request structures for the Wide
11777 * board. The total size is about 16 KB, so allocate all at once.
11778 * If the allocation fails decrement and try again.
11779 */
11780 for (req_cnt = adv_dvc->max_host_qng; req_cnt > 0; req_cnt--) {
11781 reqp = kmalloc(sizeof(adv_req_t) * req_cnt, GFP_KERNEL);
11782
11783 ASC_DBG(1, "reqp 0x%p, req_cnt %d, bytes %lu\n", reqp, req_cnt,
11784 (ulong)sizeof(adv_req_t) * req_cnt);
11785
11786 if (reqp)
11787 break;
11788 }
11789
11790 if (!reqp)
11791 goto kmalloc_failed;
11792
11793 adv_dvc->orig_reqp = reqp;
11794
11795 /*
11796 * Allocate up to ADV_TOT_SG_BLOCK request structures for
11797 * the Wide board. Each structure is about 136 bytes.
11798 */
11799 board->adv_sgblkp = NULL;
11800 for (sg_cnt = 0; sg_cnt < ADV_TOT_SG_BLOCK; sg_cnt++) {
11801 sgp = kmalloc(sizeof(adv_sgblk_t), GFP_KERNEL);
11802
11803 if (!sgp)
11804 break;
11805
11806 sgp->next_sgblkp = board->adv_sgblkp;
11807 board->adv_sgblkp = sgp;
11808
11809 }
11810
11811 ASC_DBG(1, "sg_cnt %d * %lu = %lu bytes\n", sg_cnt, sizeof(adv_sgblk_t),
11812 sizeof(adv_sgblk_t) * sg_cnt);
11813
11814 if (!board->adv_sgblkp)
11815 goto kmalloc_failed;
11816
11817 /*
11818 * Point 'adv_reqp' to the request structures and
11819 * link them together.
11820 */
11821 req_cnt--;
11822 reqp[req_cnt].next_reqp = NULL;
11823 for (; req_cnt > 0; req_cnt--) {
11824 reqp[req_cnt - 1].next_reqp = &reqp[req_cnt];
11825 }
11826 board->adv_reqp = &reqp[0];
11827
11828 if (adv_dvc->chip_type == ADV_CHIP_ASC3550) {
11829 ASC_DBG(2, "AdvInitAsc3550Driver()\n");
11830 warn_code = AdvInitAsc3550Driver(adv_dvc);
11831 } else if (adv_dvc->chip_type == ADV_CHIP_ASC38C0800) {
11832 ASC_DBG(2, "AdvInitAsc38C0800Driver()\n");
11833 warn_code = AdvInitAsc38C0800Driver(adv_dvc);
11834 } else {
11835 ASC_DBG(2, "AdvInitAsc38C1600Driver()\n");
11836 warn_code = AdvInitAsc38C1600Driver(adv_dvc);
11837 }
11838 err_code = adv_dvc->err_code;
11839
11840 if (warn_code || err_code) {
11841 shost_printk(KERN_WARNING, shost, "error: warn 0x%x, error "
11842 "0x%x\n", warn_code, err_code);
11843 }
11844
11845 goto exit;
11846
11847 kmalloc_failed:
11848 shost_printk(KERN_ERR, shost, "error: kmalloc() failed\n");
11849 err_code = ADV_ERROR;
11850 exit:
11851 return err_code;
11852 }
11853
11854 static void advansys_wide_free_mem(struct asc_board *board)
11855 {
11856 struct adv_dvc_var *adv_dvc = &board->dvc_var.adv_dvc_var;
11857 kfree(adv_dvc->carrier_buf);
11858 adv_dvc->carrier_buf = NULL;
11859 kfree(adv_dvc->orig_reqp);
11860 adv_dvc->orig_reqp = board->adv_reqp = NULL;
11861 while (board->adv_sgblkp) {
11862 adv_sgblk_t *sgp = board->adv_sgblkp;
11863 board->adv_sgblkp = sgp->next_sgblkp;
11864 kfree(sgp);
11865 }
11866 }
11867
11868 static int __devinit advansys_board_found(struct Scsi_Host *shost,
11869 unsigned int iop, int bus_type)
11870 {
11871 struct pci_dev *pdev;
11872 struct asc_board *boardp = shost_priv(shost);
11873 ASC_DVC_VAR *asc_dvc_varp = NULL;
11874 ADV_DVC_VAR *adv_dvc_varp = NULL;
11875 int share_irq, warn_code, ret;
11876
11877 pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL;
11878
11879 if (ASC_NARROW_BOARD(boardp)) {
11880 ASC_DBG(1, "narrow board\n");
11881 asc_dvc_varp = &boardp->dvc_var.asc_dvc_var;
11882 asc_dvc_varp->bus_type = bus_type;
11883 asc_dvc_varp->drv_ptr = boardp;
11884 asc_dvc_varp->cfg = &boardp->dvc_cfg.asc_dvc_cfg;
11885 asc_dvc_varp->iop_base = iop;
11886 } else {
11887 #ifdef CONFIG_PCI
11888 adv_dvc_varp = &boardp->dvc_var.adv_dvc_var;
11889 adv_dvc_varp->drv_ptr = boardp;
11890 adv_dvc_varp->cfg = &boardp->dvc_cfg.adv_dvc_cfg;
11891 if (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW) {
11892 ASC_DBG(1, "wide board ASC-3550\n");
11893 adv_dvc_varp->chip_type = ADV_CHIP_ASC3550;
11894 } else if (pdev->device == PCI_DEVICE_ID_38C0800_REV1) {
11895 ASC_DBG(1, "wide board ASC-38C0800\n");
11896 adv_dvc_varp->chip_type = ADV_CHIP_ASC38C0800;
11897 } else {
11898 ASC_DBG(1, "wide board ASC-38C1600\n");
11899 adv_dvc_varp->chip_type = ADV_CHIP_ASC38C1600;
11900 }
11901
11902 boardp->asc_n_io_port = pci_resource_len(pdev, 1);
11903 boardp->ioremap_addr = pci_ioremap_bar(pdev, 1);
11904 if (!boardp->ioremap_addr) {
11905 shost_printk(KERN_ERR, shost, "ioremap(%lx, %d) "
11906 "returned NULL\n",
11907 (long)pci_resource_start(pdev, 1),
11908 boardp->asc_n_io_port);
11909 ret = -ENODEV;
11910 goto err_shost;
11911 }
11912 adv_dvc_varp->iop_base = (AdvPortAddr)boardp->ioremap_addr;
11913 ASC_DBG(1, "iop_base: 0x%p\n", adv_dvc_varp->iop_base);
11914
11915 /*
11916 * Even though it isn't used to access wide boards, other
11917 * than for the debug line below, save I/O Port address so
11918 * that it can be reported.
11919 */
11920 boardp->ioport = iop;
11921
11922 ASC_DBG(1, "iopb_chip_id_1 0x%x, iopw_chip_id_0 0x%x\n",
11923 (ushort)inp(iop + 1), (ushort)inpw(iop));
11924 #endif /* CONFIG_PCI */
11925 }
11926
11927 #ifdef CONFIG_PROC_FS
11928 /*
11929 * Allocate buffer for printing information from
11930 * /proc/scsi/advansys/[0...].
11931 */
11932 boardp->prtbuf = kmalloc(ASC_PRTBUF_SIZE, GFP_KERNEL);
11933 if (!boardp->prtbuf) {
11934 shost_printk(KERN_ERR, shost, "kmalloc(%d) returned NULL\n",
11935 ASC_PRTBUF_SIZE);
11936 ret = -ENOMEM;
11937 goto err_unmap;
11938 }
11939 #endif /* CONFIG_PROC_FS */
11940
11941 if (ASC_NARROW_BOARD(boardp)) {
11942 /*
11943 * Set the board bus type and PCI IRQ before
11944 * calling AscInitGetConfig().
11945 */
11946 switch (asc_dvc_varp->bus_type) {
11947 #ifdef CONFIG_ISA
11948 case ASC_IS_ISA:
11949 shost->unchecked_isa_dma = TRUE;
11950 share_irq = 0;
11951 break;
11952 case ASC_IS_VL:
11953 shost->unchecked_isa_dma = FALSE;
11954 share_irq = 0;
11955 break;
11956 case ASC_IS_EISA:
11957 shost->unchecked_isa_dma = FALSE;
11958 share_irq = IRQF_SHARED;
11959 break;
11960 #endif /* CONFIG_ISA */
11961 #ifdef CONFIG_PCI
11962 case ASC_IS_PCI:
11963 shost->unchecked_isa_dma = FALSE;
11964 share_irq = IRQF_SHARED;
11965 break;
11966 #endif /* CONFIG_PCI */
11967 default:
11968 shost_printk(KERN_ERR, shost, "unknown adapter type: "
11969 "%d\n", asc_dvc_varp->bus_type);
11970 shost->unchecked_isa_dma = TRUE;
11971 share_irq = 0;
11972 break;
11973 }
11974
11975 /*
11976 * NOTE: AscInitGetConfig() may change the board's
11977 * bus_type value. The bus_type value should no
11978 * longer be used. If the bus_type field must be
11979 * referenced only use the bit-wise AND operator "&".
11980 */
11981 ASC_DBG(2, "AscInitGetConfig()\n");
11982 ret = AscInitGetConfig(shost) ? -ENODEV : 0;
11983 } else {
11984 #ifdef CONFIG_PCI
11985 /*
11986 * For Wide boards set PCI information before calling
11987 * AdvInitGetConfig().
11988 */
11989 shost->unchecked_isa_dma = FALSE;
11990 share_irq = IRQF_SHARED;
11991 ASC_DBG(2, "AdvInitGetConfig()\n");
11992
11993 ret = AdvInitGetConfig(pdev, shost) ? -ENODEV : 0;
11994 #endif /* CONFIG_PCI */
11995 }
11996
11997 if (ret)
11998 goto err_free_proc;
11999
12000 /*
12001 * Save the EEPROM configuration so that it can be displayed
12002 * from /proc/scsi/advansys/[0...].
12003 */
12004 if (ASC_NARROW_BOARD(boardp)) {
12005
12006 ASCEEP_CONFIG *ep;
12007
12008 /*
12009 * Set the adapter's target id bit in the 'init_tidmask' field.
12010 */
12011 boardp->init_tidmask |=
12012 ADV_TID_TO_TIDMASK(asc_dvc_varp->cfg->chip_scsi_id);
12013
12014 /*
12015 * Save EEPROM settings for the board.
12016 */
12017 ep = &boardp->eep_config.asc_eep;
12018
12019 ep->init_sdtr = asc_dvc_varp->cfg->sdtr_enable;
12020 ep->disc_enable = asc_dvc_varp->cfg->disc_enable;
12021 ep->use_cmd_qng = asc_dvc_varp->cfg->cmd_qng_enabled;
12022 ASC_EEP_SET_DMA_SPD(ep, asc_dvc_varp->cfg->isa_dma_speed);
12023 ep->start_motor = asc_dvc_varp->start_motor;
12024 ep->cntl = asc_dvc_varp->dvc_cntl;
12025 ep->no_scam = asc_dvc_varp->no_scam;
12026 ep->max_total_qng = asc_dvc_varp->max_total_qng;
12027 ASC_EEP_SET_CHIP_ID(ep, asc_dvc_varp->cfg->chip_scsi_id);
12028 /* 'max_tag_qng' is set to the same value for every device. */
12029 ep->max_tag_qng = asc_dvc_varp->cfg->max_tag_qng[0];
12030 ep->adapter_info[0] = asc_dvc_varp->cfg->adapter_info[0];
12031 ep->adapter_info[1] = asc_dvc_varp->cfg->adapter_info[1];
12032 ep->adapter_info[2] = asc_dvc_varp->cfg->adapter_info[2];
12033 ep->adapter_info[3] = asc_dvc_varp->cfg->adapter_info[3];
12034 ep->adapter_info[4] = asc_dvc_varp->cfg->adapter_info[4];
12035 ep->adapter_info[5] = asc_dvc_varp->cfg->adapter_info[5];
12036
12037 /*
12038 * Modify board configuration.
12039 */
12040 ASC_DBG(2, "AscInitSetConfig()\n");
12041 ret = AscInitSetConfig(pdev, shost) ? -ENODEV : 0;
12042 if (ret)
12043 goto err_free_proc;
12044 } else {
12045 ADVEEP_3550_CONFIG *ep_3550;
12046 ADVEEP_38C0800_CONFIG *ep_38C0800;
12047 ADVEEP_38C1600_CONFIG *ep_38C1600;
12048
12049 /*
12050 * Save Wide EEP Configuration Information.
12051 */
12052 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
12053 ep_3550 = &boardp->eep_config.adv_3550_eep;
12054
12055 ep_3550->adapter_scsi_id = adv_dvc_varp->chip_scsi_id;
12056 ep_3550->max_host_qng = adv_dvc_varp->max_host_qng;
12057 ep_3550->max_dvc_qng = adv_dvc_varp->max_dvc_qng;
12058 ep_3550->termination = adv_dvc_varp->cfg->termination;
12059 ep_3550->disc_enable = adv_dvc_varp->cfg->disc_enable;
12060 ep_3550->bios_ctrl = adv_dvc_varp->bios_ctrl;
12061 ep_3550->wdtr_able = adv_dvc_varp->wdtr_able;
12062 ep_3550->sdtr_able = adv_dvc_varp->sdtr_able;
12063 ep_3550->ultra_able = adv_dvc_varp->ultra_able;
12064 ep_3550->tagqng_able = adv_dvc_varp->tagqng_able;
12065 ep_3550->start_motor = adv_dvc_varp->start_motor;
12066 ep_3550->scsi_reset_delay =
12067 adv_dvc_varp->scsi_reset_wait;
12068 ep_3550->serial_number_word1 =
12069 adv_dvc_varp->cfg->serial1;
12070 ep_3550->serial_number_word2 =
12071 adv_dvc_varp->cfg->serial2;
12072 ep_3550->serial_number_word3 =
12073 adv_dvc_varp->cfg->serial3;
12074 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
12075 ep_38C0800 = &boardp->eep_config.adv_38C0800_eep;
12076
12077 ep_38C0800->adapter_scsi_id =
12078 adv_dvc_varp->chip_scsi_id;
12079 ep_38C0800->max_host_qng = adv_dvc_varp->max_host_qng;
12080 ep_38C0800->max_dvc_qng = adv_dvc_varp->max_dvc_qng;
12081 ep_38C0800->termination_lvd =
12082 adv_dvc_varp->cfg->termination;
12083 ep_38C0800->disc_enable =
12084 adv_dvc_varp->cfg->disc_enable;
12085 ep_38C0800->bios_ctrl = adv_dvc_varp->bios_ctrl;
12086 ep_38C0800->wdtr_able = adv_dvc_varp->wdtr_able;
12087 ep_38C0800->tagqng_able = adv_dvc_varp->tagqng_able;
12088 ep_38C0800->sdtr_speed1 = adv_dvc_varp->sdtr_speed1;
12089 ep_38C0800->sdtr_speed2 = adv_dvc_varp->sdtr_speed2;
12090 ep_38C0800->sdtr_speed3 = adv_dvc_varp->sdtr_speed3;
12091 ep_38C0800->sdtr_speed4 = adv_dvc_varp->sdtr_speed4;
12092 ep_38C0800->tagqng_able = adv_dvc_varp->tagqng_able;
12093 ep_38C0800->start_motor = adv_dvc_varp->start_motor;
12094 ep_38C0800->scsi_reset_delay =
12095 adv_dvc_varp->scsi_reset_wait;
12096 ep_38C0800->serial_number_word1 =
12097 adv_dvc_varp->cfg->serial1;
12098 ep_38C0800->serial_number_word2 =
12099 adv_dvc_varp->cfg->serial2;
12100 ep_38C0800->serial_number_word3 =
12101 adv_dvc_varp->cfg->serial3;
12102 } else {
12103 ep_38C1600 = &boardp->eep_config.adv_38C1600_eep;
12104
12105 ep_38C1600->adapter_scsi_id =
12106 adv_dvc_varp->chip_scsi_id;
12107 ep_38C1600->max_host_qng = adv_dvc_varp->max_host_qng;
12108 ep_38C1600->max_dvc_qng = adv_dvc_varp->max_dvc_qng;
12109 ep_38C1600->termination_lvd =
12110 adv_dvc_varp->cfg->termination;
12111 ep_38C1600->disc_enable =
12112 adv_dvc_varp->cfg->disc_enable;
12113 ep_38C1600->bios_ctrl = adv_dvc_varp->bios_ctrl;
12114 ep_38C1600->wdtr_able = adv_dvc_varp->wdtr_able;
12115 ep_38C1600->tagqng_able = adv_dvc_varp->tagqng_able;
12116 ep_38C1600->sdtr_speed1 = adv_dvc_varp->sdtr_speed1;
12117 ep_38C1600->sdtr_speed2 = adv_dvc_varp->sdtr_speed2;
12118 ep_38C1600->sdtr_speed3 = adv_dvc_varp->sdtr_speed3;
12119 ep_38C1600->sdtr_speed4 = adv_dvc_varp->sdtr_speed4;
12120 ep_38C1600->tagqng_able = adv_dvc_varp->tagqng_able;
12121 ep_38C1600->start_motor = adv_dvc_varp->start_motor;
12122 ep_38C1600->scsi_reset_delay =
12123 adv_dvc_varp->scsi_reset_wait;
12124 ep_38C1600->serial_number_word1 =
12125 adv_dvc_varp->cfg->serial1;
12126 ep_38C1600->serial_number_word2 =
12127 adv_dvc_varp->cfg->serial2;
12128 ep_38C1600->serial_number_word3 =
12129 adv_dvc_varp->cfg->serial3;
12130 }
12131
12132 /*
12133 * Set the adapter's target id bit in the 'init_tidmask' field.
12134 */
12135 boardp->init_tidmask |=
12136 ADV_TID_TO_TIDMASK(adv_dvc_varp->chip_scsi_id);
12137 }
12138
12139 /*
12140 * Channels are numbered beginning with 0. For AdvanSys one host
12141 * structure supports one channel. Multi-channel boards have a
12142 * separate host structure for each channel.
12143 */
12144 shost->max_channel = 0;
12145 if (ASC_NARROW_BOARD(boardp)) {
12146 shost->max_id = ASC_MAX_TID + 1;
12147 shost->max_lun = ASC_MAX_LUN + 1;
12148 shost->max_cmd_len = ASC_MAX_CDB_LEN;
12149
12150 shost->io_port = asc_dvc_varp->iop_base;
12151 boardp->asc_n_io_port = ASC_IOADR_GAP;
12152 shost->this_id = asc_dvc_varp->cfg->chip_scsi_id;
12153
12154 /* Set maximum number of queues the adapter can handle. */
12155 shost->can_queue = asc_dvc_varp->max_total_qng;
12156 } else {
12157 shost->max_id = ADV_MAX_TID + 1;
12158 shost->max_lun = ADV_MAX_LUN + 1;
12159 shost->max_cmd_len = ADV_MAX_CDB_LEN;
12160
12161 /*
12162 * Save the I/O Port address and length even though
12163 * I/O ports are not used to access Wide boards.
12164 * Instead the Wide boards are accessed with
12165 * PCI Memory Mapped I/O.
12166 */
12167 shost->io_port = iop;
12168
12169 shost->this_id = adv_dvc_varp->chip_scsi_id;
12170
12171 /* Set maximum number of queues the adapter can handle. */
12172 shost->can_queue = adv_dvc_varp->max_host_qng;
12173 }
12174
12175 /*
12176 * Following v1.3.89, 'cmd_per_lun' is no longer needed
12177 * and should be set to zero.
12178 *
12179 * But because of a bug introduced in v1.3.89 if the driver is
12180 * compiled as a module and 'cmd_per_lun' is zero, the Mid-Level
12181 * SCSI function 'allocate_device' will panic. To allow the driver
12182 * to work as a module in these kernels set 'cmd_per_lun' to 1.
12183 *
12184 * Note: This is wrong. cmd_per_lun should be set to the depth
12185 * you want on untagged devices always.
12186 #ifdef MODULE
12187 */
12188 shost->cmd_per_lun = 1;
12189 /* #else
12190 shost->cmd_per_lun = 0;
12191 #endif */
12192
12193 /*
12194 * Set the maximum number of scatter-gather elements the
12195 * adapter can handle.
12196 */
12197 if (ASC_NARROW_BOARD(boardp)) {
12198 /*
12199 * Allow two commands with 'sg_tablesize' scatter-gather
12200 * elements to be executed simultaneously. This value is
12201 * the theoretical hardware limit. It may be decreased
12202 * below.
12203 */
12204 shost->sg_tablesize =
12205 (((asc_dvc_varp->max_total_qng - 2) / 2) *
12206 ASC_SG_LIST_PER_Q) + 1;
12207 } else {
12208 shost->sg_tablesize = ADV_MAX_SG_LIST;
12209 }
12210
12211 /*
12212 * The value of 'sg_tablesize' can not exceed the SCSI
12213 * mid-level driver definition of SG_ALL. SG_ALL also
12214 * must not be exceeded, because it is used to define the
12215 * size of the scatter-gather table in 'struct asc_sg_head'.
12216 */
12217 if (shost->sg_tablesize > SG_ALL) {
12218 shost->sg_tablesize = SG_ALL;
12219 }
12220
12221 ASC_DBG(1, "sg_tablesize: %d\n", shost->sg_tablesize);
12222
12223 /* BIOS start address. */
12224 if (ASC_NARROW_BOARD(boardp)) {
12225 shost->base = AscGetChipBiosAddress(asc_dvc_varp->iop_base,
12226 asc_dvc_varp->bus_type);
12227 } else {
12228 /*
12229 * Fill-in BIOS board variables. The Wide BIOS saves
12230 * information in LRAM that is used by the driver.
12231 */
12232 AdvReadWordLram(adv_dvc_varp->iop_base,
12233 BIOS_SIGNATURE, boardp->bios_signature);
12234 AdvReadWordLram(adv_dvc_varp->iop_base,
12235 BIOS_VERSION, boardp->bios_version);
12236 AdvReadWordLram(adv_dvc_varp->iop_base,
12237 BIOS_CODESEG, boardp->bios_codeseg);
12238 AdvReadWordLram(adv_dvc_varp->iop_base,
12239 BIOS_CODELEN, boardp->bios_codelen);
12240
12241 ASC_DBG(1, "bios_signature 0x%x, bios_version 0x%x\n",
12242 boardp->bios_signature, boardp->bios_version);
12243
12244 ASC_DBG(1, "bios_codeseg 0x%x, bios_codelen 0x%x\n",
12245 boardp->bios_codeseg, boardp->bios_codelen);
12246
12247 /*
12248 * If the BIOS saved a valid signature, then fill in
12249 * the BIOS code segment base address.
12250 */
12251 if (boardp->bios_signature == 0x55AA) {
12252 /*
12253 * Convert x86 realmode code segment to a linear
12254 * address by shifting left 4.
12255 */
12256 shost->base = ((ulong)boardp->bios_codeseg << 4);
12257 } else {
12258 shost->base = 0;
12259 }
12260 }
12261
12262 /*
12263 * Register Board Resources - I/O Port, DMA, IRQ
12264 */
12265
12266 /* Register DMA Channel for Narrow boards. */
12267 shost->dma_channel = NO_ISA_DMA; /* Default to no ISA DMA. */
12268 #ifdef CONFIG_ISA
12269 if (ASC_NARROW_BOARD(boardp)) {
12270 /* Register DMA channel for ISA bus. */
12271 if (asc_dvc_varp->bus_type & ASC_IS_ISA) {
12272 shost->dma_channel = asc_dvc_varp->cfg->isa_dma_channel;
12273 ret = request_dma(shost->dma_channel, DRV_NAME);
12274 if (ret) {
12275 shost_printk(KERN_ERR, shost, "request_dma() "
12276 "%d failed %d\n",
12277 shost->dma_channel, ret);
12278 goto err_free_proc;
12279 }
12280 AscEnableIsaDma(shost->dma_channel);
12281 }
12282 }
12283 #endif /* CONFIG_ISA */
12284
12285 /* Register IRQ Number. */
12286 ASC_DBG(2, "request_irq(%d, %p)\n", boardp->irq, shost);
12287
12288 ret = request_irq(boardp->irq, advansys_interrupt, share_irq,
12289 DRV_NAME, shost);
12290
12291 if (ret) {
12292 if (ret == -EBUSY) {
12293 shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x "
12294 "already in use\n", boardp->irq);
12295 } else if (ret == -EINVAL) {
12296 shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x "
12297 "not valid\n", boardp->irq);
12298 } else {
12299 shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x "
12300 "failed with %d\n", boardp->irq, ret);
12301 }
12302 goto err_free_dma;
12303 }
12304
12305 /*
12306 * Initialize board RISC chip and enable interrupts.
12307 */
12308 if (ASC_NARROW_BOARD(boardp)) {
12309 ASC_DBG(2, "AscInitAsc1000Driver()\n");
12310
12311 asc_dvc_varp->overrun_buf = kzalloc(ASC_OVERRUN_BSIZE, GFP_KERNEL);
12312 if (!asc_dvc_varp->overrun_buf) {
12313 ret = -ENOMEM;
12314 goto err_free_wide_mem;
12315 }
12316 warn_code = AscInitAsc1000Driver(asc_dvc_varp);
12317
12318 if (warn_code || asc_dvc_varp->err_code) {
12319 shost_printk(KERN_ERR, shost, "error: init_state 0x%x, "
12320 "warn 0x%x, error 0x%x\n",
12321 asc_dvc_varp->init_state, warn_code,
12322 asc_dvc_varp->err_code);
12323 if (asc_dvc_varp->err_code) {
12324 ret = -ENODEV;
12325 kfree(asc_dvc_varp->overrun_buf);
12326 }
12327 }
12328 } else {
12329 if (advansys_wide_init_chip(shost))
12330 ret = -ENODEV;
12331 }
12332
12333 if (ret)
12334 goto err_free_wide_mem;
12335
12336 ASC_DBG_PRT_SCSI_HOST(2, shost);
12337
12338 ret = scsi_add_host(shost, boardp->dev);
12339 if (ret)
12340 goto err_free_wide_mem;
12341
12342 scsi_scan_host(shost);
12343 return 0;
12344
12345 err_free_wide_mem:
12346 advansys_wide_free_mem(boardp);
12347 free_irq(boardp->irq, shost);
12348 err_free_dma:
12349 #ifdef CONFIG_ISA
12350 if (shost->dma_channel != NO_ISA_DMA)
12351 free_dma(shost->dma_channel);
12352 #endif
12353 err_free_proc:
12354 kfree(boardp->prtbuf);
12355 err_unmap:
12356 if (boardp->ioremap_addr)
12357 iounmap(boardp->ioremap_addr);
12358 err_shost:
12359 return ret;
12360 }
12361
12362 /*
12363 * advansys_release()
12364 *
12365 * Release resources allocated for a single AdvanSys adapter.
12366 */
12367 static int advansys_release(struct Scsi_Host *shost)
12368 {
12369 struct asc_board *board = shost_priv(shost);
12370 ASC_DBG(1, "begin\n");
12371 scsi_remove_host(shost);
12372 free_irq(board->irq, shost);
12373 #ifdef CONFIG_ISA
12374 if (shost->dma_channel != NO_ISA_DMA) {
12375 ASC_DBG(1, "free_dma()\n");
12376 free_dma(shost->dma_channel);
12377 }
12378 #endif
12379 if (ASC_NARROW_BOARD(board)) {
12380 dma_unmap_single(board->dev,
12381 board->dvc_var.asc_dvc_var.overrun_dma,
12382 ASC_OVERRUN_BSIZE, DMA_FROM_DEVICE);
12383 kfree(board->dvc_var.asc_dvc_var.overrun_buf);
12384 } else {
12385 iounmap(board->ioremap_addr);
12386 advansys_wide_free_mem(board);
12387 }
12388 kfree(board->prtbuf);
12389 scsi_host_put(shost);
12390 ASC_DBG(1, "end\n");
12391 return 0;
12392 }
12393
12394 #define ASC_IOADR_TABLE_MAX_IX 11
12395
12396 static PortAddr _asc_def_iop_base[ASC_IOADR_TABLE_MAX_IX] = {
12397 0x100, 0x0110, 0x120, 0x0130, 0x140, 0x0150, 0x0190,
12398 0x0210, 0x0230, 0x0250, 0x0330
12399 };
12400
12401 /*
12402 * The ISA IRQ number is found in bits 2 and 3 of the CfgLsw. It decodes as:
12403 * 00: 10
12404 * 01: 11
12405 * 10: 12
12406 * 11: 15
12407 */
12408 static unsigned int __devinit advansys_isa_irq_no(PortAddr iop_base)
12409 {
12410 unsigned short cfg_lsw = AscGetChipCfgLsw(iop_base);
12411 unsigned int chip_irq = ((cfg_lsw >> 2) & 0x03) + 10;
12412 if (chip_irq == 13)
12413 chip_irq = 15;
12414 return chip_irq;
12415 }
12416
12417 static int __devinit advansys_isa_probe(struct device *dev, unsigned int id)
12418 {
12419 int err = -ENODEV;
12420 PortAddr iop_base = _asc_def_iop_base[id];
12421 struct Scsi_Host *shost;
12422 struct asc_board *board;
12423
12424 if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) {
12425 ASC_DBG(1, "I/O port 0x%x busy\n", iop_base);
12426 return -ENODEV;
12427 }
12428 ASC_DBG(1, "probing I/O port 0x%x\n", iop_base);
12429 if (!AscFindSignature(iop_base))
12430 goto release_region;
12431 if (!(AscGetChipVersion(iop_base, ASC_IS_ISA) & ASC_CHIP_VER_ISA_BIT))
12432 goto release_region;
12433
12434 err = -ENOMEM;
12435 shost = scsi_host_alloc(&advansys_template, sizeof(*board));
12436 if (!shost)
12437 goto release_region;
12438
12439 board = shost_priv(shost);
12440 board->irq = advansys_isa_irq_no(iop_base);
12441 board->dev = dev;
12442
12443 err = advansys_board_found(shost, iop_base, ASC_IS_ISA);
12444 if (err)
12445 goto free_host;
12446
12447 dev_set_drvdata(dev, shost);
12448 return 0;
12449
12450 free_host:
12451 scsi_host_put(shost);
12452 release_region:
12453 release_region(iop_base, ASC_IOADR_GAP);
12454 return err;
12455 }
12456
12457 static int __devexit advansys_isa_remove(struct device *dev, unsigned int id)
12458 {
12459 int ioport = _asc_def_iop_base[id];
12460 advansys_release(dev_get_drvdata(dev));
12461 release_region(ioport, ASC_IOADR_GAP);
12462 return 0;
12463 }
12464
12465 static struct isa_driver advansys_isa_driver = {
12466 .probe = advansys_isa_probe,
12467 .remove = __devexit_p(advansys_isa_remove),
12468 .driver = {
12469 .owner = THIS_MODULE,
12470 .name = DRV_NAME,
12471 },
12472 };
12473
12474 /*
12475 * The VLB IRQ number is found in bits 2 to 4 of the CfgLsw. It decodes as:
12476 * 000: invalid
12477 * 001: 10
12478 * 010: 11
12479 * 011: 12
12480 * 100: invalid
12481 * 101: 14
12482 * 110: 15
12483 * 111: invalid
12484 */
12485 static unsigned int __devinit advansys_vlb_irq_no(PortAddr iop_base)
12486 {
12487 unsigned short cfg_lsw = AscGetChipCfgLsw(iop_base);
12488 unsigned int chip_irq = ((cfg_lsw >> 2) & 0x07) + 9;
12489 if ((chip_irq < 10) || (chip_irq == 13) || (chip_irq > 15))
12490 return 0;
12491 return chip_irq;
12492 }
12493
12494 static int __devinit advansys_vlb_probe(struct device *dev, unsigned int id)
12495 {
12496 int err = -ENODEV;
12497 PortAddr iop_base = _asc_def_iop_base[id];
12498 struct Scsi_Host *shost;
12499 struct asc_board *board;
12500
12501 if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) {
12502 ASC_DBG(1, "I/O port 0x%x busy\n", iop_base);
12503 return -ENODEV;
12504 }
12505 ASC_DBG(1, "probing I/O port 0x%x\n", iop_base);
12506 if (!AscFindSignature(iop_base))
12507 goto release_region;
12508 /*
12509 * I don't think this condition can actually happen, but the old
12510 * driver did it, and the chances of finding a VLB setup in 2007
12511 * to do testing with is slight to none.
12512 */
12513 if (AscGetChipVersion(iop_base, ASC_IS_VL) > ASC_CHIP_MAX_VER_VL)
12514 goto release_region;
12515
12516 err = -ENOMEM;
12517 shost = scsi_host_alloc(&advansys_template, sizeof(*board));
12518 if (!shost)
12519 goto release_region;
12520
12521 board = shost_priv(shost);
12522 board->irq = advansys_vlb_irq_no(iop_base);
12523 board->dev = dev;
12524
12525 err = advansys_board_found(shost, iop_base, ASC_IS_VL);
12526 if (err)
12527 goto free_host;
12528
12529 dev_set_drvdata(dev, shost);
12530 return 0;
12531
12532 free_host:
12533 scsi_host_put(shost);
12534 release_region:
12535 release_region(iop_base, ASC_IOADR_GAP);
12536 return -ENODEV;
12537 }
12538
12539 static struct isa_driver advansys_vlb_driver = {
12540 .probe = advansys_vlb_probe,
12541 .remove = __devexit_p(advansys_isa_remove),
12542 .driver = {
12543 .owner = THIS_MODULE,
12544 .name = "advansys_vlb",
12545 },
12546 };
12547
12548 static struct eisa_device_id advansys_eisa_table[] __devinitdata = {
12549 { "ABP7401" },
12550 { "ABP7501" },
12551 { "" }
12552 };
12553
12554 MODULE_DEVICE_TABLE(eisa, advansys_eisa_table);
12555
12556 /*
12557 * EISA is a little more tricky than PCI; each EISA device may have two
12558 * channels, and this driver is written to make each channel its own Scsi_Host
12559 */
12560 struct eisa_scsi_data {
12561 struct Scsi_Host *host[2];
12562 };
12563
12564 /*
12565 * The EISA IRQ number is found in bits 8 to 10 of the CfgLsw. It decodes as:
12566 * 000: 10
12567 * 001: 11
12568 * 010: 12
12569 * 011: invalid
12570 * 100: 14
12571 * 101: 15
12572 * 110: invalid
12573 * 111: invalid
12574 */
12575 static unsigned int __devinit advansys_eisa_irq_no(struct eisa_device *edev)
12576 {
12577 unsigned short cfg_lsw = inw(edev->base_addr + 0xc86);
12578 unsigned int chip_irq = ((cfg_lsw >> 8) & 0x07) + 10;
12579 if ((chip_irq == 13) || (chip_irq > 15))
12580 return 0;
12581 return chip_irq;
12582 }
12583
12584 static int __devinit advansys_eisa_probe(struct device *dev)
12585 {
12586 int i, ioport, irq = 0;
12587 int err;
12588 struct eisa_device *edev = to_eisa_device(dev);
12589 struct eisa_scsi_data *data;
12590
12591 err = -ENOMEM;
12592 data = kzalloc(sizeof(*data), GFP_KERNEL);
12593 if (!data)
12594 goto fail;
12595 ioport = edev->base_addr + 0xc30;
12596
12597 err = -ENODEV;
12598 for (i = 0; i < 2; i++, ioport += 0x20) {
12599 struct asc_board *board;
12600 struct Scsi_Host *shost;
12601 if (!request_region(ioport, ASC_IOADR_GAP, DRV_NAME)) {
12602 printk(KERN_WARNING "Region %x-%x busy\n", ioport,
12603 ioport + ASC_IOADR_GAP - 1);
12604 continue;
12605 }
12606 if (!AscFindSignature(ioport)) {
12607 release_region(ioport, ASC_IOADR_GAP);
12608 continue;
12609 }
12610
12611 /*
12612 * I don't know why we need to do this for EISA chips, but
12613 * not for any others. It looks to be equivalent to
12614 * AscGetChipCfgMsw, but I may have overlooked something,
12615 * so I'm not converting it until I get an EISA board to
12616 * test with.
12617 */
12618 inw(ioport + 4);
12619
12620 if (!irq)
12621 irq = advansys_eisa_irq_no(edev);
12622
12623 err = -ENOMEM;
12624 shost = scsi_host_alloc(&advansys_template, sizeof(*board));
12625 if (!shost)
12626 goto release_region;
12627
12628 board = shost_priv(shost);
12629 board->irq = irq;
12630 board->dev = dev;
12631
12632 err = advansys_board_found(shost, ioport, ASC_IS_EISA);
12633 if (!err) {
12634 data->host[i] = shost;
12635 continue;
12636 }
12637
12638 scsi_host_put(shost);
12639 release_region:
12640 release_region(ioport, ASC_IOADR_GAP);
12641 break;
12642 }
12643
12644 if (err)
12645 goto free_data;
12646 dev_set_drvdata(dev, data);
12647 return 0;
12648
12649 free_data:
12650 kfree(data->host[0]);
12651 kfree(data->host[1]);
12652 kfree(data);
12653 fail:
12654 return err;
12655 }
12656
12657 static __devexit int advansys_eisa_remove(struct device *dev)
12658 {
12659 int i;
12660 struct eisa_scsi_data *data = dev_get_drvdata(dev);
12661
12662 for (i = 0; i < 2; i++) {
12663 int ioport;
12664 struct Scsi_Host *shost = data->host[i];
12665 if (!shost)
12666 continue;
12667 ioport = shost->io_port;
12668 advansys_release(shost);
12669 release_region(ioport, ASC_IOADR_GAP);
12670 }
12671
12672 kfree(data);
12673 return 0;
12674 }
12675
12676 static struct eisa_driver advansys_eisa_driver = {
12677 .id_table = advansys_eisa_table,
12678 .driver = {
12679 .name = DRV_NAME,
12680 .probe = advansys_eisa_probe,
12681 .remove = __devexit_p(advansys_eisa_remove),
12682 }
12683 };
12684
12685 /* PCI Devices supported by this driver */
12686 static struct pci_device_id advansys_pci_tbl[] __devinitdata = {
12687 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_1200A,
12688 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
12689 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940,
12690 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
12691 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940U,
12692 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
12693 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940UW,
12694 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
12695 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_38C0800_REV1,
12696 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
12697 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_38C1600_REV1,
12698 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
12699 {}
12700 };
12701
12702 MODULE_DEVICE_TABLE(pci, advansys_pci_tbl);
12703
12704 static void __devinit advansys_set_latency(struct pci_dev *pdev)
12705 {
12706 if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) ||
12707 (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) {
12708 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0);
12709 } else {
12710 u8 latency;
12711 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &latency);
12712 if (latency < 0x20)
12713 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x20);
12714 }
12715 }
12716
12717 static int __devinit
12718 advansys_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
12719 {
12720 int err, ioport;
12721 struct Scsi_Host *shost;
12722 struct asc_board *board;
12723
12724 err = pci_enable_device(pdev);
12725 if (err)
12726 goto fail;
12727 err = pci_request_regions(pdev, DRV_NAME);
12728 if (err)
12729 goto disable_device;
12730 pci_set_master(pdev);
12731 advansys_set_latency(pdev);
12732
12733 err = -ENODEV;
12734 if (pci_resource_len(pdev, 0) == 0)
12735 goto release_region;
12736
12737 ioport = pci_resource_start(pdev, 0);
12738
12739 err = -ENOMEM;
12740 shost = scsi_host_alloc(&advansys_template, sizeof(*board));
12741 if (!shost)
12742 goto release_region;
12743
12744 board = shost_priv(shost);
12745 board->irq = pdev->irq;
12746 board->dev = &pdev->dev;
12747
12748 if (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW ||
12749 pdev->device == PCI_DEVICE_ID_38C0800_REV1 ||
12750 pdev->device == PCI_DEVICE_ID_38C1600_REV1) {
12751 board->flags |= ASC_IS_WIDE_BOARD;
12752 }
12753
12754 err = advansys_board_found(shost, ioport, ASC_IS_PCI);
12755 if (err)
12756 goto free_host;
12757
12758 pci_set_drvdata(pdev, shost);
12759 return 0;
12760
12761 free_host:
12762 scsi_host_put(shost);
12763 release_region:
12764 pci_release_regions(pdev);
12765 disable_device:
12766 pci_disable_device(pdev);
12767 fail:
12768 return err;
12769 }
12770
12771 static void __devexit advansys_pci_remove(struct pci_dev *pdev)
12772 {
12773 advansys_release(pci_get_drvdata(pdev));
12774 pci_release_regions(pdev);
12775 pci_disable_device(pdev);
12776 }
12777
12778 static struct pci_driver advansys_pci_driver = {
12779 .name = DRV_NAME,
12780 .id_table = advansys_pci_tbl,
12781 .probe = advansys_pci_probe,
12782 .remove = __devexit_p(advansys_pci_remove),
12783 };
12784
12785 static int __init advansys_init(void)
12786 {
12787 int error;
12788
12789 error = isa_register_driver(&advansys_isa_driver,
12790 ASC_IOADR_TABLE_MAX_IX);
12791 if (error)
12792 goto fail;
12793
12794 error = isa_register_driver(&advansys_vlb_driver,
12795 ASC_IOADR_TABLE_MAX_IX);
12796 if (error)
12797 goto unregister_isa;
12798
12799 error = eisa_driver_register(&advansys_eisa_driver);
12800 if (error)
12801 goto unregister_vlb;
12802
12803 error = pci_register_driver(&advansys_pci_driver);
12804 if (error)
12805 goto unregister_eisa;
12806
12807 return 0;
12808
12809 unregister_eisa:
12810 eisa_driver_unregister(&advansys_eisa_driver);
12811 unregister_vlb:
12812 isa_unregister_driver(&advansys_vlb_driver);
12813 unregister_isa:
12814 isa_unregister_driver(&advansys_isa_driver);
12815 fail:
12816 return error;
12817 }
12818
12819 static void __exit advansys_exit(void)
12820 {
12821 pci_unregister_driver(&advansys_pci_driver);
12822 eisa_driver_unregister(&advansys_eisa_driver);
12823 isa_unregister_driver(&advansys_vlb_driver);
12824 isa_unregister_driver(&advansys_isa_driver);
12825 }
12826
12827 module_init(advansys_init);
12828 module_exit(advansys_exit);
12829
12830 MODULE_LICENSE("GPL");
12831 MODULE_FIRMWARE("advansys/mcode.bin");
12832 MODULE_FIRMWARE("advansys/3550.bin");
12833 MODULE_FIRMWARE("advansys/38C0800.bin");
12834 MODULE_FIRMWARE("advansys/38C1600.bin");
Linux with added FPC-III support