2 * sym53c500_cs.c Bob Tracy (rct@frus.com)
4 * A rewrite of the pcmcia-cs add-on driver for newer (circa 1997)
5 * New Media Bus Toaster PCMCIA SCSI cards using the Symbios Logic
6 * 53c500 controller: intended for use with 2.6 and later kernels.
7 * The pcmcia-cs add-on version of this driver is not supported
8 * beyond 2.4. It consisted of three files with history/copyright
9 * information as follows:
12 * Bob Tracy (rct@frus.com)
13 * Original by Tom Corner (tcorner@via.at).
14 * Adapted from NCR53c406a.h which is Copyrighted (C) 1994
15 * Normunds Saumanis (normunds@rx.tech.swh.lv)
18 * Bob Tracy (rct@frus.com)
19 * Original driver by Tom Corner (tcorner@via.at) was adapted
20 * from NCR53c406a.c which is Copyrighted (C) 1994, 1995, 1996
21 * Normunds Saumanis (normunds@fi.ibm.com)
24 * Bob Tracy (rct@frus.com)
25 * Original by Tom Corner (tcorner@via.at) was adapted from a
26 * driver for the Qlogic SCSI card written by
27 * David Hinds (dhinds@allegro.stanford.edu).
29 * This program is free software; you can redistribute it and/or modify it
30 * under the terms of the GNU General Public License as published by the
31 * Free Software Foundation; either version 2, or (at your option) any
34 * This program is distributed in the hope that it will be useful, but
35 * WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
37 * General Public License for more details.
40 #define SYM53C500_DEBUG 0
41 #define VERBOSE_SYM53C500_DEBUG 0
44 * Set this to 0 if you encounter kernel lockups while transferring
45 * data in PIO mode. Note this can be changed via "sysfs".
47 #define USE_FAST_PIO 1
49 /* =============== End of user configurable parameters ============== */
51 #include <linux/module.h>
52 #include <linux/moduleparam.h>
53 #include <linux/errno.h>
54 #include <linux/init.h>
55 #include <linux/interrupt.h>
56 #include <linux/kernel.h>
57 #include <linux/slab.h>
58 #include <linux/string.h>
59 #include <linux/ioport.h>
60 #include <linux/blkdev.h>
61 #include <linux/spinlock.h>
62 #include <linux/bitops.h>
68 #include <scsi/scsi_ioctl.h>
69 #include <scsi/scsi_cmnd.h>
70 #include <scsi/scsi_device.h>
71 #include <scsi/scsi.h>
72 #include <scsi/scsi_host.h>
74 #include <pcmcia/cs_types.h>
75 #include <pcmcia/cs.h>
76 #include <pcmcia/cistpl.h>
77 #include <pcmcia/ds.h>
78 #include <pcmcia/ciscode.h>
80 /* ================================================================== */
83 static int pc_debug
= PCMCIA_DEBUG
;
84 module_param(pc_debug
, int, 0);
85 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
86 static char *version
=
87 "sym53c500_cs.c 0.9c 2004/10/27 (Bob Tracy)";
89 #define DEBUG(n, args...)
92 /* ================================================================== */
94 #define SYNC_MODE 0 /* Synchronous transfer mode */
96 /* Default configuration */
97 #define C1_IMG 0x07 /* ID=7 */
98 #define C2_IMG 0x48 /* FE SCSI2 */
99 #define C3_IMG 0x20 /* CDB */
100 #define C4_IMG 0x04 /* ANE */
101 #define C5_IMG 0xa4 /* ? changed from b6= AA PI SIE POL */
102 #define C7_IMG 0x80 /* added for SYM53C500 t. corner */
104 /* Hardware Registers: offsets from io_port (base) */
106 /* Control Register Set 0 */
107 #define TC_LSB 0x00 /* transfer counter lsb */
108 #define TC_MSB 0x01 /* transfer counter msb */
109 #define SCSI_FIFO 0x02 /* scsi fifo register */
110 #define CMD_REG 0x03 /* command register */
111 #define STAT_REG 0x04 /* status register */
112 #define DEST_ID 0x04 /* selection/reselection bus id */
113 #define INT_REG 0x05 /* interrupt status register */
114 #define SRTIMOUT 0x05 /* select/reselect timeout reg */
115 #define SEQ_REG 0x06 /* sequence step register */
116 #define SYNCPRD 0x06 /* synchronous transfer period */
117 #define FIFO_FLAGS 0x07 /* indicates # of bytes in fifo */
118 #define SYNCOFF 0x07 /* synchronous offset register */
119 #define CONFIG1 0x08 /* configuration register */
120 #define CLKCONV 0x09 /* clock conversion register */
121 /* #define TESTREG 0x0A */ /* test mode register */
122 #define CONFIG2 0x0B /* configuration 2 register */
123 #define CONFIG3 0x0C /* configuration 3 register */
124 #define CONFIG4 0x0D /* configuration 4 register */
125 #define TC_HIGH 0x0E /* transfer counter high */
126 /* #define FIFO_BOTTOM 0x0F */ /* reserve FIFO byte register */
128 /* Control Register Set 1 */
129 /* #define JUMPER_SENSE 0x00 */ /* jumper sense port reg (r/w) */
130 /* #define SRAM_PTR 0x01 */ /* SRAM address pointer reg (r/w) */
131 /* #define SRAM_DATA 0x02 */ /* SRAM data register (r/w) */
132 #define PIO_FIFO 0x04 /* PIO FIFO registers (r/w) */
133 /* #define PIO_FIFO1 0x05 */ /* */
134 /* #define PIO_FIFO2 0x06 */ /* */
135 /* #define PIO_FIFO3 0x07 */ /* */
136 #define PIO_STATUS 0x08 /* PIO status (r/w) */
137 /* #define ATA_CMD 0x09 */ /* ATA command/status reg (r/w) */
138 /* #define ATA_ERR 0x0A */ /* ATA features/error reg (r/w) */
139 #define PIO_FLAG 0x0B /* PIO flag interrupt enable (r/w) */
140 #define CONFIG5 0x09 /* configuration 5 register */
141 /* #define SIGNATURE 0x0E */ /* signature register (r) */
142 /* #define CONFIG6 0x0F */ /* configuration 6 register (r) */
145 /* select register set 0 */
146 #define REG0(x) (outb(C4_IMG, (x) + CONFIG4))
147 /* select register set 1 */
148 #define REG1(x) outb(C7_IMG, (x) + CONFIG7); outb(C5_IMG, (x) + CONFIG5)
156 #if VERBOSE_SYM53C500_DEBUG
162 #define LOAD_DMA_COUNT(x, count) \
163 outb(count & 0xff, (x) + TC_LSB); \
164 outb((count >> 8) & 0xff, (x) + TC_MSB); \
165 outb((count >> 16) & 0xff, (x) + TC_HIGH);
170 #define SCSI_NOP 0x00
171 #define FLUSH_FIFO 0x01
172 #define CHIP_RESET 0x02
173 #define SCSI_RESET 0x03
174 #define RESELECT 0x40
175 #define SELECT_NO_ATN 0x41
176 #define SELECT_ATN 0x42
177 #define SELECT_ATN_STOP 0x43
178 #define ENABLE_SEL 0x44
179 #define DISABLE_SEL 0x45
180 #define SELECT_ATN3 0x46
181 #define RESELECT3 0x47
182 #define TRANSFER_INFO 0x10
183 #define INIT_CMD_COMPLETE 0x11
184 #define MSG_ACCEPT 0x12
185 #define TRANSFER_PAD 0x18
187 #define RESET_ATN 0x1b
188 #define SEND_MSG 0x20
189 #define SEND_STATUS 0x21
190 #define SEND_DATA 0x22
191 #define DISCONN_SEQ 0x23
192 #define TERMINATE_SEQ 0x24
193 #define TARG_CMD_COMPLETE 0x25
195 #define RECV_MSG 0x28
196 #define RECV_CMD 0x29
197 #define RECV_DATA 0x2a
198 #define RECV_CMD_SEQ 0x2b
199 #define TARGET_ABORT_DMA 0x04
201 /* ================================================================== */
204 struct pcmcia_device
*p_dev
;
206 struct Scsi_Host
*host
;
207 unsigned short manf_id
;
211 * Repository for per-instance host data.
213 struct sym53c500_data
{
214 struct scsi_cmnd
*current_SC
;
228 /* ================================================================== */
231 chip_init(int io_port
)
234 outb(0x01, io_port
+ PIO_STATUS
);
235 outb(0x00, io_port
+ PIO_FLAG
);
237 outb(C4_IMG
, io_port
+ CONFIG4
); /* REG0(io_port); */
238 outb(C3_IMG
, io_port
+ CONFIG3
);
239 outb(C2_IMG
, io_port
+ CONFIG2
);
240 outb(C1_IMG
, io_port
+ CONFIG1
);
242 outb(0x05, io_port
+ CLKCONV
); /* clock conversion factor */
243 outb(0x9C, io_port
+ SRTIMOUT
); /* Selection timeout */
244 outb(0x05, io_port
+ SYNCPRD
); /* Synchronous transfer period */
245 outb(SYNC_MODE
, io_port
+ SYNCOFF
); /* synchronous mode */
249 SYM53C500_int_host_reset(int io_port
)
251 outb(C4_IMG
, io_port
+ CONFIG4
); /* REG0(io_port); */
252 outb(CHIP_RESET
, io_port
+ CMD_REG
);
253 outb(SCSI_NOP
, io_port
+ CMD_REG
); /* required after reset */
254 outb(SCSI_RESET
, io_port
+ CMD_REG
);
258 static __inline__
int
259 SYM53C500_pio_read(int fast_pio
, int base
, unsigned char *request
, unsigned int reqlen
)
262 int len
; /* current scsi fifo size */
266 i
= inb(base
+ PIO_STATUS
);
267 /* VDEB(printk("pio_status=%x\n", i)); */
273 case 0x10: /* fifo empty */
279 case 0x8: /* fifo 1/3 full */
282 case 0xc: /* fifo 2/3 full */
285 case 0xe: /* fifo full */
290 if ((i
& 0x40) && len
== 0) { /* fifo empty and interrupt occurred */
298 if (fast_pio
&& len
> 3) {
299 insl(base
+ PIO_FIFO
, request
, len
>> 2);
300 request
+= len
& 0xfc;
301 reqlen
-= len
& 0xfc;
304 *request
++ = inb(base
+ PIO_FIFO
);
313 static __inline__
int
314 SYM53C500_pio_write(int fast_pio
, int base
, unsigned char *request
, unsigned int reqlen
)
317 int len
; /* current scsi fifo size */
320 while (reqlen
&& !(i
& 0x40)) {
321 i
= inb(base
+ PIO_STATUS
);
322 /* VDEB(printk("pio_status=%x\n", i)); */
323 if (i
& 0x80) /* error */
349 if (fast_pio
&& len
> 3) {
350 outsl(base
+ PIO_FIFO
, request
, len
>> 2);
351 request
+= len
& 0xfc;
352 reqlen
-= len
& 0xfc;
355 outb(*request
++, base
+ PIO_FIFO
);
365 SYM53C500_intr(int irq
, void *dev_id
)
368 struct Scsi_Host
*dev
= dev_id
;
369 DEB(unsigned char fifo_size
;)
370 DEB(unsigned char seq_reg
;)
371 unsigned char status
, int_reg
;
372 unsigned char pio_status
;
373 int port_base
= dev
->io_port
;
374 struct sym53c500_data
*data
=
375 (struct sym53c500_data
*)dev
->hostdata
;
376 struct scsi_cmnd
*curSC
= data
->current_SC
;
377 int fast_pio
= data
->fast_pio
;
379 spin_lock_irqsave(dev
->host_lock
, flags
);
381 VDEB(printk("SYM53C500_intr called\n"));
384 pio_status
= inb(port_base
+ PIO_STATUS
);
386 status
= inb(port_base
+ STAT_REG
);
387 DEB(seq_reg
= inb(port_base
+ SEQ_REG
));
388 int_reg
= inb(port_base
+ INT_REG
);
389 DEB(fifo_size
= inb(port_base
+ FIFO_FLAGS
) & 0x1f);
392 printk("status=%02x, seq_reg=%02x, int_reg=%02x, fifo_size=%02x",
393 status
, seq_reg
, int_reg
, fifo_size
);
394 printk(", pio=%02x\n", pio_status
);
395 #endif /* SYM53C500_DEBUG */
397 if (int_reg
& 0x80) { /* SCSI reset intr */
398 DEB(printk("SYM53C500: reset intr received\n"));
399 curSC
->result
= DID_RESET
<< 16;
403 if (pio_status
& 0x80) {
404 printk("SYM53C500: Warning: PIO error!\n");
405 curSC
->result
= DID_ERROR
<< 16;
409 if (status
& 0x20) { /* Parity error */
410 printk("SYM53C500: Warning: parity error!\n");
411 curSC
->result
= DID_PARITY
<< 16;
415 if (status
& 0x40) { /* Gross error */
416 printk("SYM53C500: Warning: gross error!\n");
417 curSC
->result
= DID_ERROR
<< 16;
421 if (int_reg
& 0x20) { /* Disconnect */
422 DEB(printk("SYM53C500: disconnect intr received\n"));
423 if (curSC
->SCp
.phase
!= message_in
) { /* Unexpected disconnect */
424 curSC
->result
= DID_NO_CONNECT
<< 16;
425 } else { /* Command complete, return status and message */
426 curSC
->result
= (curSC
->SCp
.Status
& 0xff)
427 | ((curSC
->SCp
.Message
& 0xff) << 8) | (DID_OK
<< 16);
432 switch (status
& 0x07) { /* scsi phase */
433 case 0x00: /* DATA-OUT */
434 if (int_reg
& 0x10) { /* Target requesting info transfer */
435 struct scatterlist
*sg
;
438 curSC
->SCp
.phase
= data_out
;
439 VDEB(printk("SYM53C500: Data-Out phase\n"));
440 outb(FLUSH_FIFO
, port_base
+ CMD_REG
);
441 LOAD_DMA_COUNT(port_base
, scsi_bufflen(curSC
)); /* Max transfer size */
442 outb(TRANSFER_INFO
| DMA_OP
, port_base
+ CMD_REG
);
444 scsi_for_each_sg(curSC
, sg
, scsi_sg_count(curSC
), i
) {
445 SYM53C500_pio_write(fast_pio
, port_base
,
446 sg_virt(sg
), sg
->length
);
452 case 0x01: /* DATA-IN */
453 if (int_reg
& 0x10) { /* Target requesting info transfer */
454 struct scatterlist
*sg
;
457 curSC
->SCp
.phase
= data_in
;
458 VDEB(printk("SYM53C500: Data-In phase\n"));
459 outb(FLUSH_FIFO
, port_base
+ CMD_REG
);
460 LOAD_DMA_COUNT(port_base
, scsi_bufflen(curSC
)); /* Max transfer size */
461 outb(TRANSFER_INFO
| DMA_OP
, port_base
+ CMD_REG
);
463 scsi_for_each_sg(curSC
, sg
, scsi_sg_count(curSC
), i
) {
464 SYM53C500_pio_read(fast_pio
, port_base
,
465 sg_virt(sg
), sg
->length
);
471 case 0x02: /* COMMAND */
472 curSC
->SCp
.phase
= command_ph
;
473 printk("SYM53C500: Warning: Unknown interrupt occurred in command phase!\n");
476 case 0x03: /* STATUS */
477 curSC
->SCp
.phase
= status_ph
;
478 VDEB(printk("SYM53C500: Status phase\n"));
479 outb(FLUSH_FIFO
, port_base
+ CMD_REG
);
480 outb(INIT_CMD_COMPLETE
, port_base
+ CMD_REG
);
483 case 0x04: /* Reserved */
484 case 0x05: /* Reserved */
485 printk("SYM53C500: WARNING: Reserved phase!!!\n");
488 case 0x06: /* MESSAGE-OUT */
489 DEB(printk("SYM53C500: Message-Out phase\n"));
490 curSC
->SCp
.phase
= message_out
;
491 outb(SET_ATN
, port_base
+ CMD_REG
); /* Reject the message */
492 outb(MSG_ACCEPT
, port_base
+ CMD_REG
);
495 case 0x07: /* MESSAGE-IN */
496 VDEB(printk("SYM53C500: Message-In phase\n"));
497 curSC
->SCp
.phase
= message_in
;
499 curSC
->SCp
.Status
= inb(port_base
+ SCSI_FIFO
);
500 curSC
->SCp
.Message
= inb(port_base
+ SCSI_FIFO
);
502 VDEB(printk("SCSI FIFO size=%d\n", inb(port_base
+ FIFO_FLAGS
) & 0x1f));
503 DEB(printk("Status = %02x Message = %02x\n", curSC
->SCp
.Status
, curSC
->SCp
.Message
));
505 if (curSC
->SCp
.Message
== SAVE_POINTERS
|| curSC
->SCp
.Message
== DISCONNECT
) {
506 outb(SET_ATN
, port_base
+ CMD_REG
); /* Reject message */
507 DEB(printk("Discarding SAVE_POINTERS message\n"));
509 outb(MSG_ACCEPT
, port_base
+ CMD_REG
);
513 spin_unlock_irqrestore(dev
->host_lock
, flags
);
517 curSC
->SCp
.phase
= idle
;
518 curSC
->scsi_done(curSC
);
523 SYM53C500_release(struct pcmcia_device
*link
)
525 struct scsi_info_t
*info
= link
->priv
;
526 struct Scsi_Host
*shost
= info
->host
;
528 DEBUG(0, "SYM53C500_release(0x%p)\n", link
);
531 * Do this before releasing/freeing resources.
533 scsi_remove_host(shost
);
536 * Interrupts getting hosed on card removal. Try
537 * the following code, mostly from qlogicfas.c.
540 free_irq(shost
->irq
, shost
);
541 if (shost
->io_port
&& shost
->n_io_port
)
542 release_region(shost
->io_port
, shost
->n_io_port
);
544 pcmcia_disable_device(link
);
546 scsi_host_put(shost
);
547 } /* SYM53C500_release */
550 SYM53C500_info(struct Scsi_Host
*SChost
)
552 static char info_msg
[256];
553 struct sym53c500_data
*data
=
554 (struct sym53c500_data
*)SChost
->hostdata
;
556 DEB(printk("SYM53C500_info called\n"));
557 (void)snprintf(info_msg
, sizeof(info_msg
),
558 "SYM53C500 at 0x%lx, IRQ %d, %s PIO mode.",
559 SChost
->io_port
, SChost
->irq
, data
->fast_pio
? "fast" : "slow");
564 SYM53C500_queue(struct scsi_cmnd
*SCpnt
, void (*done
)(struct scsi_cmnd
*))
567 int port_base
= SCpnt
->device
->host
->io_port
;
568 struct sym53c500_data
*data
=
569 (struct sym53c500_data
*)SCpnt
->device
->host
->hostdata
;
571 VDEB(printk("SYM53C500_queue called\n"));
573 DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n",
574 SCpnt
->cmnd
[0], SCpnt
->cmd_len
, SCpnt
->device
->id
,
575 SCpnt
->device
->lun
, scsi_bufflen(SCpnt
)));
577 VDEB(for (i
= 0; i
< SCpnt
->cmd_len
; i
++)
578 printk("cmd[%d]=%02x ", i
, SCpnt
->cmnd
[i
]));
581 data
->current_SC
= SCpnt
;
582 data
->current_SC
->scsi_done
= done
;
583 data
->current_SC
->SCp
.phase
= command_ph
;
584 data
->current_SC
->SCp
.Status
= 0;
585 data
->current_SC
->SCp
.Message
= 0;
587 /* We are locked here already by the mid layer */
589 outb(scmd_id(SCpnt
), port_base
+ DEST_ID
); /* set destination */
590 outb(FLUSH_FIFO
, port_base
+ CMD_REG
); /* reset the fifos */
592 for (i
= 0; i
< SCpnt
->cmd_len
; i
++) {
593 outb(SCpnt
->cmnd
[i
], port_base
+ SCSI_FIFO
);
595 outb(SELECT_NO_ATN
, port_base
+ CMD_REG
);
601 SYM53C500_host_reset(struct scsi_cmnd
*SCpnt
)
603 int port_base
= SCpnt
->device
->host
->io_port
;
605 DEB(printk("SYM53C500_host_reset called\n"));
606 spin_lock_irq(SCpnt
->device
->host
->host_lock
);
607 SYM53C500_int_host_reset(port_base
);
608 spin_unlock_irq(SCpnt
->device
->host
->host_lock
);
614 SYM53C500_biosparm(struct scsi_device
*disk
,
615 struct block_device
*dev
,
616 sector_t capacity
, int *info_array
)
620 DEB(printk("SYM53C500_biosparm called\n"));
623 info_array
[0] = 64; /* heads */
624 info_array
[1] = 32; /* sectors */
625 info_array
[2] = size
>> 11; /* cylinders */
626 if (info_array
[2] > 1024) { /* big disk */
629 info_array
[2] = size
/ (255 * 63);
635 SYM53C500_show_pio(struct class_device
*cdev
, char *buf
)
637 struct Scsi_Host
*SHp
= class_to_shost(cdev
);
638 struct sym53c500_data
*data
=
639 (struct sym53c500_data
*)SHp
->hostdata
;
641 return snprintf(buf
, 4, "%d\n", data
->fast_pio
);
645 SYM53C500_store_pio(struct class_device
*cdev
, const char *buf
, size_t count
)
648 struct Scsi_Host
*SHp
= class_to_shost(cdev
);
649 struct sym53c500_data
*data
=
650 (struct sym53c500_data
*)SHp
->hostdata
;
652 pio
= simple_strtoul(buf
, NULL
, 0);
653 if (pio
== 0 || pio
== 1) {
654 data
->fast_pio
= pio
;
662 * SCSI HBA device attributes we want to
663 * make available via sysfs.
665 static struct class_device_attribute SYM53C500_pio_attr
= {
668 .mode
= (S_IRUGO
| S_IWUSR
),
670 .show
= SYM53C500_show_pio
,
671 .store
= SYM53C500_store_pio
,
674 static struct class_device_attribute
*SYM53C500_shost_attrs
[] = {
680 * scsi_host_template initializer
682 static struct scsi_host_template sym53c500_driver_template
= {
683 .module
= THIS_MODULE
,
685 .info
= SYM53C500_info
,
686 .queuecommand
= SYM53C500_queue
,
687 .eh_host_reset_handler
= SYM53C500_host_reset
,
688 .bios_param
= SYM53C500_biosparm
,
689 .proc_name
= "SYM53C500",
694 .use_clustering
= ENABLE_CLUSTERING
,
695 .use_sg_chaining
= ENABLE_SG_CHAINING
,
696 .shost_attrs
= SYM53C500_shost_attrs
699 #define CS_CHECK(fn, ret) \
700 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
703 SYM53C500_config(struct pcmcia_device
*link
)
705 struct scsi_info_t
*info
= link
->priv
;
708 int i
, last_ret
, last_fn
;
709 int irq_level
, port_base
;
710 unsigned short tuple_data
[32];
711 struct Scsi_Host
*host
;
712 struct scsi_host_template
*tpnt
= &sym53c500_driver_template
;
713 struct sym53c500_data
*data
;
715 DEBUG(0, "SYM53C500_config(0x%p)\n", link
);
717 info
->manf_id
= link
->manf_id
;
719 tuple
.TupleData
= (cisdata_t
*)tuple_data
;
720 tuple
.TupleDataMax
= 64;
721 tuple
.TupleOffset
= 0;
723 tuple
.DesiredTuple
= CISTPL_CFTABLE_ENTRY
;
724 CS_CHECK(GetFirstTuple
, pcmcia_get_first_tuple(link
, &tuple
));
726 if (pcmcia_get_tuple_data(link
, &tuple
) != 0 ||
727 pcmcia_parse_tuple(link
, &tuple
, &parse
) != 0)
729 link
->conf
.ConfigIndex
= parse
.cftable_entry
.index
;
730 link
->io
.BasePort1
= parse
.cftable_entry
.io
.win
[0].base
;
731 link
->io
.NumPorts1
= parse
.cftable_entry
.io
.win
[0].len
;
733 if (link
->io
.BasePort1
!= 0) {
734 i
= pcmcia_request_io(link
, &link
->io
);
739 CS_CHECK(GetNextTuple
, pcmcia_get_next_tuple(link
, &tuple
));
742 CS_CHECK(RequestIRQ
, pcmcia_request_irq(link
, &link
->irq
));
743 CS_CHECK(RequestConfiguration
, pcmcia_request_configuration(link
, &link
->conf
));
746 * That's the trouble with copying liberally from another driver.
747 * Some things probably aren't relevant, and I suspect this entire
748 * section dealing with manufacturer IDs can be scrapped. --rct
750 if ((info
->manf_id
== MANFID_MACNICA
) ||
751 (info
->manf_id
== MANFID_PIONEER
) ||
752 (info
->manf_id
== 0x0098)) {
754 outb(0xb4, link
->io
.BasePort1
+ 0xd);
755 outb(0x24, link
->io
.BasePort1
+ 0x9);
756 outb(0x04, link
->io
.BasePort1
+ 0xd);
760 * irq_level == 0 implies tpnt->can_queue == 0, which
761 * is not supported in 2.6. Thus, only irq_level > 0
764 * Possible port_base values are as follows:
766 * 0x130, 0x230, 0x280, 0x290,
767 * 0x320, 0x330, 0x340, 0x350
769 port_base
= link
->io
.BasePort1
;
770 irq_level
= link
->irq
.AssignedIRQ
;
772 DEB(printk("SYM53C500: port_base=0x%x, irq=%d, fast_pio=%d\n",
773 port_base
, irq_level
, USE_FAST_PIO
);)
775 chip_init(port_base
);
777 host
= scsi_host_alloc(tpnt
, sizeof(struct sym53c500_data
));
779 printk("SYM53C500: Unable to register host, giving up.\n");
783 data
= (struct sym53c500_data
*)host
->hostdata
;
786 if (request_irq(irq_level
, SYM53C500_intr
, IRQF_SHARED
, "SYM53C500", host
)) {
787 printk("SYM53C500: unable to allocate IRQ %d\n", irq_level
);
790 DEB(printk("SYM53C500: allocated IRQ %d\n", irq_level
));
791 } else if (irq_level
== 0) {
792 DEB(printk("SYM53C500: No interrupts detected\n"));
795 DEB(printk("SYM53C500: Shouldn't get here!\n"));
799 host
->unique_id
= port_base
;
800 host
->irq
= irq_level
;
801 host
->io_port
= port_base
;
802 host
->n_io_port
= 0x10;
803 host
->dma_channel
= -1;
806 * Note fast_pio is set to USE_FAST_PIO by
807 * default, but can be changed via "sysfs".
809 data
->fast_pio
= USE_FAST_PIO
;
811 sprintf(info
->node
.dev_name
, "scsi%d", host
->host_no
);
812 link
->dev_node
= &info
->node
;
815 if (scsi_add_host(host
, NULL
))
818 scsi_scan_host(host
);
823 free_irq(irq_level
, host
);
827 release_region(port_base
, 0x10);
828 printk(KERN_INFO
"sym53c500_cs: no SCSI devices found\n");
832 cs_error(link
, last_fn
, last_ret
);
833 SYM53C500_release(link
);
835 } /* SYM53C500_config */
837 static int sym53c500_resume(struct pcmcia_device
*link
)
839 struct scsi_info_t
*info
= link
->priv
;
841 /* See earlier comment about manufacturer IDs. */
842 if ((info
->manf_id
== MANFID_MACNICA
) ||
843 (info
->manf_id
== MANFID_PIONEER
) ||
844 (info
->manf_id
== 0x0098)) {
845 outb(0x80, link
->io
.BasePort1
+ 0xd);
846 outb(0x24, link
->io
.BasePort1
+ 0x9);
847 outb(0x04, link
->io
.BasePort1
+ 0xd);
850 * If things don't work after a "resume",
851 * this is a good place to start looking.
853 SYM53C500_int_host_reset(link
->io
.BasePort1
);
859 SYM53C500_detach(struct pcmcia_device
*link
)
861 DEBUG(0, "SYM53C500_detach(0x%p)\n", link
);
863 SYM53C500_release(link
);
867 } /* SYM53C500_detach */
870 SYM53C500_probe(struct pcmcia_device
*link
)
872 struct scsi_info_t
*info
;
874 DEBUG(0, "SYM53C500_attach()\n");
876 /* Create new SCSI device */
877 info
= kzalloc(sizeof(*info
), GFP_KERNEL
);
882 link
->io
.NumPorts1
= 16;
883 link
->io
.Attributes1
= IO_DATA_PATH_WIDTH_AUTO
;
884 link
->io
.IOAddrLines
= 10;
885 link
->irq
.Attributes
= IRQ_TYPE_EXCLUSIVE
;
886 link
->irq
.IRQInfo1
= IRQ_LEVEL_ID
;
887 link
->conf
.Attributes
= CONF_ENABLE_IRQ
;
888 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
890 return SYM53C500_config(link
);
891 } /* SYM53C500_attach */
893 MODULE_AUTHOR("Bob Tracy <rct@frus.com>");
894 MODULE_DESCRIPTION("SYM53C500 PCMCIA SCSI driver");
895 MODULE_LICENSE("GPL");
897 static struct pcmcia_device_id sym53c500_ids
[] = {
898 PCMCIA_DEVICE_PROD_ID12("BASICS by New Media Corporation", "SCSI Sym53C500", 0x23c78a9d, 0x0099e7f7),
899 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "SCSI Bus Toaster Sym53C500", 0x085a850b, 0x45432eb8),
900 PCMCIA_DEVICE_PROD_ID2("SCSI9000", 0x21648f44),
903 MODULE_DEVICE_TABLE(pcmcia
, sym53c500_ids
);
905 static struct pcmcia_driver sym53c500_cs_driver
= {
906 .owner
= THIS_MODULE
,
908 .name
= "sym53c500_cs",
910 .probe
= SYM53C500_probe
,
911 .remove
= SYM53C500_detach
,
912 .id_table
= sym53c500_ids
,
913 .resume
= sym53c500_resume
,
917 init_sym53c500_cs(void)
919 return pcmcia_register_driver(&sym53c500_cs_driver
);
923 exit_sym53c500_cs(void)
925 pcmcia_unregister_driver(&sym53c500_cs_driver
);
928 module_init(init_sym53c500_cs
);
929 module_exit(exit_sym53c500_cs
);