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Pull bugzilla-9429 into release branch
[pv_ops_mirror.git] / drivers / net / wireless / ipw2100.c
blobfc6cdd8086c1b2c49da2d7857682cda1870ee3e1
1 /******************************************************************************
2
3 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
4
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of version 2 of the GNU General Public License as
7 published by the Free Software Foundation.
8
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 more details.
13
14 You should have received a copy of the GNU General Public License along with
15 this program; if not, write to the Free Software Foundation, Inc., 59
16 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18 The full GNU General Public License is included in this distribution in the
19 file called LICENSE.
20
21 Contact Information:
22 James P. Ketrenos <ipw2100-admin@linux.intel.com>
23 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24
25 Portions of this file are based on the sample_* files provided by Wireless
26 Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes
27 <jt@hpl.hp.com>
28
29 Portions of this file are based on the Host AP project,
30 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
31 <j@w1.fi>
32 Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
33
34 Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and
35 ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c
36 available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox
37
38 ******************************************************************************/
39 /*
40
41 Initial driver on which this is based was developed by Janusz Gorycki,
42 Maciej Urbaniak, and Maciej Sosnowski.
43
44 Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak.
45
46 Theory of Operation
47
48 Tx - Commands and Data
49
50 Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs)
51 Each TBD contains a pointer to the physical (dma_addr_t) address of data being
52 sent to the firmware as well as the length of the data.
53
54 The host writes to the TBD queue at the WRITE index. The WRITE index points
55 to the _next_ packet to be written and is advanced when after the TBD has been
56 filled.
57
58 The firmware pulls from the TBD queue at the READ index. The READ index points
59 to the currently being read entry, and is advanced once the firmware is
60 done with a packet.
61
62 When data is sent to the firmware, the first TBD is used to indicate to the
63 firmware if a Command or Data is being sent. If it is Command, all of the
64 command information is contained within the physical address referred to by the
65 TBD. If it is Data, the first TBD indicates the type of data packet, number
66 of fragments, etc. The next TBD then referrs to the actual packet location.
67
68 The Tx flow cycle is as follows:
69
70 1) ipw2100_tx() is called by kernel with SKB to transmit
71 2) Packet is move from the tx_free_list and appended to the transmit pending
72 list (tx_pend_list)
73 3) work is scheduled to move pending packets into the shared circular queue.
74 4) when placing packet in the circular queue, the incoming SKB is DMA mapped
75 to a physical address. That address is entered into a TBD. Two TBDs are
76 filled out. The first indicating a data packet, the second referring to the
77 actual payload data.
78 5) the packet is removed from tx_pend_list and placed on the end of the
79 firmware pending list (fw_pend_list)
80 6) firmware is notified that the WRITE index has
81 7) Once the firmware has processed the TBD, INTA is triggered.
82 8) For each Tx interrupt received from the firmware, the READ index is checked
83 to see which TBDs are done being processed.
84 9) For each TBD that has been processed, the ISR pulls the oldest packet
85 from the fw_pend_list.
86 10)The packet structure contained in the fw_pend_list is then used
87 to unmap the DMA address and to free the SKB originally passed to the driver
88 from the kernel.
89 11)The packet structure is placed onto the tx_free_list
90
91 The above steps are the same for commands, only the msg_free_list/msg_pend_list
92 are used instead of tx_free_list/tx_pend_list
93
94 ...
95
96 Critical Sections / Locking :
97
98 There are two locks utilized. The first is the low level lock (priv->low_lock)
99 that protects the following:
100
101 - Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows:
102
103 tx_free_list : Holds pre-allocated Tx buffers.
104 TAIL modified in __ipw2100_tx_process()
105 HEAD modified in ipw2100_tx()
106
107 tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring
108 TAIL modified ipw2100_tx()
109 HEAD modified by ipw2100_tx_send_data()
110
111 msg_free_list : Holds pre-allocated Msg (Command) buffers
112 TAIL modified in __ipw2100_tx_process()
113 HEAD modified in ipw2100_hw_send_command()
114
115 msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring
116 TAIL modified in ipw2100_hw_send_command()
117 HEAD modified in ipw2100_tx_send_commands()
118
119 The flow of data on the TX side is as follows:
120
121 MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST
122 TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST
123
124 The methods that work on the TBD ring are protected via priv->low_lock.
125
126 - The internal data state of the device itself
127 - Access to the firmware read/write indexes for the BD queues
128 and associated logic
129
130 All external entry functions are locked with the priv->action_lock to ensure
131 that only one external action is invoked at a time.
132
133
134 */
135
136 #include <linux/compiler.h>
137 #include <linux/errno.h>
138 #include <linux/if_arp.h>
139 #include <linux/in6.h>
140 #include <linux/in.h>
141 #include <linux/ip.h>
142 #include <linux/kernel.h>
143 #include <linux/kmod.h>
144 #include <linux/module.h>
145 #include <linux/netdevice.h>
146 #include <linux/ethtool.h>
147 #include <linux/pci.h>
148 #include <linux/dma-mapping.h>
149 #include <linux/proc_fs.h>
150 #include <linux/skbuff.h>
151 #include <asm/uaccess.h>
152 #include <asm/io.h>
153 #include <linux/fs.h>
154 #include <linux/mm.h>
155 #include <linux/slab.h>
156 #include <linux/unistd.h>
157 #include <linux/stringify.h>
158 #include <linux/tcp.h>
159 #include <linux/types.h>
160 #include <linux/version.h>
161 #include <linux/time.h>
162 #include <linux/firmware.h>
163 #include <linux/acpi.h>
164 #include <linux/ctype.h>
165 #include <linux/latency.h>
166
167 #include "ipw2100.h"
168
169 #define IPW2100_VERSION "git-1.2.2"
170
171 #define DRV_NAME "ipw2100"
172 #define DRV_VERSION IPW2100_VERSION
173 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
174 #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
175
176 /* Debugging stuff */
177 #ifdef CONFIG_IPW2100_DEBUG
178 #define IPW2100_RX_DEBUG /* Reception debugging */
179 #endif
180
181 MODULE_DESCRIPTION(DRV_DESCRIPTION);
182 MODULE_VERSION(DRV_VERSION);
183 MODULE_AUTHOR(DRV_COPYRIGHT);
184 MODULE_LICENSE("GPL");
185
186 static int debug = 0;
187 static int mode = 0;
188 static int channel = 0;
189 static int associate = 1;
190 static int disable = 0;
191 #ifdef CONFIG_PM
192 static struct ipw2100_fw ipw2100_firmware;
193 #endif
194
195 #include <linux/moduleparam.h>
196 module_param(debug, int, 0444);
197 module_param(mode, int, 0444);
198 module_param(channel, int, 0444);
199 module_param(associate, int, 0444);
200 module_param(disable, int, 0444);
201
202 MODULE_PARM_DESC(debug, "debug level");
203 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
204 MODULE_PARM_DESC(channel, "channel");
205 MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
206 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
207
208 static u32 ipw2100_debug_level = IPW_DL_NONE;
209
210 #ifdef CONFIG_IPW2100_DEBUG
211 #define IPW_DEBUG(level, message...) \
212 do { \
213 if (ipw2100_debug_level & (level)) { \
214 printk(KERN_DEBUG "ipw2100: %c %s ", \
215 in_interrupt() ? 'I' : 'U', __FUNCTION__); \
216 printk(message); \
217 } \
218 } while (0)
219 #else
220 #define IPW_DEBUG(level, message...) do {} while (0)
221 #endif /* CONFIG_IPW2100_DEBUG */
222
223 #ifdef CONFIG_IPW2100_DEBUG
224 static const char *command_types[] = {
225 "undefined",
226 "unused", /* HOST_ATTENTION */
227 "HOST_COMPLETE",
228 "unused", /* SLEEP */
229 "unused", /* HOST_POWER_DOWN */
230 "unused",
231 "SYSTEM_CONFIG",
232 "unused", /* SET_IMR */
233 "SSID",
234 "MANDATORY_BSSID",
235 "AUTHENTICATION_TYPE",
236 "ADAPTER_ADDRESS",
237 "PORT_TYPE",
238 "INTERNATIONAL_MODE",
239 "CHANNEL",
240 "RTS_THRESHOLD",
241 "FRAG_THRESHOLD",
242 "POWER_MODE",
243 "TX_RATES",
244 "BASIC_TX_RATES",
245 "WEP_KEY_INFO",
246 "unused",
247 "unused",
248 "unused",
249 "unused",
250 "WEP_KEY_INDEX",
251 "WEP_FLAGS",
252 "ADD_MULTICAST",
253 "CLEAR_ALL_MULTICAST",
254 "BEACON_INTERVAL",
255 "ATIM_WINDOW",
256 "CLEAR_STATISTICS",
257 "undefined",
258 "undefined",
259 "undefined",
260 "undefined",
261 "TX_POWER_INDEX",
262 "undefined",
263 "undefined",
264 "undefined",
265 "undefined",
266 "undefined",
267 "undefined",
268 "BROADCAST_SCAN",
269 "CARD_DISABLE",
270 "PREFERRED_BSSID",
271 "SET_SCAN_OPTIONS",
272 "SCAN_DWELL_TIME",
273 "SWEEP_TABLE",
274 "AP_OR_STATION_TABLE",
275 "GROUP_ORDINALS",
276 "SHORT_RETRY_LIMIT",
277 "LONG_RETRY_LIMIT",
278 "unused", /* SAVE_CALIBRATION */
279 "unused", /* RESTORE_CALIBRATION */
280 "undefined",
281 "undefined",
282 "undefined",
283 "HOST_PRE_POWER_DOWN",
284 "unused", /* HOST_INTERRUPT_COALESCING */
285 "undefined",
286 "CARD_DISABLE_PHY_OFF",
287 "MSDU_TX_RATES" "undefined",
288 "undefined",
289 "SET_STATION_STAT_BITS",
290 "CLEAR_STATIONS_STAT_BITS",
291 "LEAP_ROGUE_MODE",
292 "SET_SECURITY_INFORMATION",
293 "DISASSOCIATION_BSSID",
294 "SET_WPA_ASS_IE"
295 };
296 #endif
297
298 /* Pre-decl until we get the code solid and then we can clean it up */
299 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
300 static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
301 static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
302
303 static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
304 static void ipw2100_queues_free(struct ipw2100_priv *priv);
305 static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
306
307 static int ipw2100_fw_download(struct ipw2100_priv *priv,
308 struct ipw2100_fw *fw);
309 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
310 struct ipw2100_fw *fw);
311 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
312 size_t max);
313 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
314 size_t max);
315 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
316 struct ipw2100_fw *fw);
317 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
318 struct ipw2100_fw *fw);
319 static void ipw2100_wx_event_work(struct work_struct *work);
320 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
321 static struct iw_handler_def ipw2100_wx_handler_def;
322
323 static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
324 {
325 *val = readl((void __iomem *)(dev->base_addr + reg));
326 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
327 }
328
329 static inline void write_register(struct net_device *dev, u32 reg, u32 val)
330 {
331 writel(val, (void __iomem *)(dev->base_addr + reg));
332 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
333 }
334
335 static inline void read_register_word(struct net_device *dev, u32 reg,
336 u16 * val)
337 {
338 *val = readw((void __iomem *)(dev->base_addr + reg));
339 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
340 }
341
342 static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
343 {
344 *val = readb((void __iomem *)(dev->base_addr + reg));
345 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
346 }
347
348 static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
349 {
350 writew(val, (void __iomem *)(dev->base_addr + reg));
351 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
352 }
353
354 static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
355 {
356 writeb(val, (void __iomem *)(dev->base_addr + reg));
357 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
358 }
359
360 static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
361 {
362 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
363 addr & IPW_REG_INDIRECT_ADDR_MASK);
364 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
365 }
366
367 static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
368 {
369 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
370 addr & IPW_REG_INDIRECT_ADDR_MASK);
371 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
372 }
373
374 static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
375 {
376 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
377 addr & IPW_REG_INDIRECT_ADDR_MASK);
378 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
379 }
380
381 static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
382 {
383 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
384 addr & IPW_REG_INDIRECT_ADDR_MASK);
385 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
386 }
387
388 static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
389 {
390 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
391 addr & IPW_REG_INDIRECT_ADDR_MASK);
392 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
393 }
394
395 static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
396 {
397 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
398 addr & IPW_REG_INDIRECT_ADDR_MASK);
399 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
400 }
401
402 static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
403 {
404 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
405 addr & IPW_REG_INDIRECT_ADDR_MASK);
406 }
407
408 static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
409 {
410 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
411 }
412
413 static void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
414 const u8 * buf)
415 {
416 u32 aligned_addr;
417 u32 aligned_len;
418 u32 dif_len;
419 u32 i;
420
421 /* read first nibble byte by byte */
422 aligned_addr = addr & (~0x3);
423 dif_len = addr - aligned_addr;
424 if (dif_len) {
425 /* Start reading at aligned_addr + dif_len */
426 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
427 aligned_addr);
428 for (i = dif_len; i < 4; i++, buf++)
429 write_register_byte(dev,
430 IPW_REG_INDIRECT_ACCESS_DATA + i,
431 *buf);
432
433 len -= dif_len;
434 aligned_addr += 4;
435 }
436
437 /* read DWs through autoincrement registers */
438 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
439 aligned_len = len & (~0x3);
440 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
441 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
442
443 /* copy the last nibble */
444 dif_len = len - aligned_len;
445 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
446 for (i = 0; i < dif_len; i++, buf++)
447 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
448 *buf);
449 }
450
451 static void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
452 u8 * buf)
453 {
454 u32 aligned_addr;
455 u32 aligned_len;
456 u32 dif_len;
457 u32 i;
458
459 /* read first nibble byte by byte */
460 aligned_addr = addr & (~0x3);
461 dif_len = addr - aligned_addr;
462 if (dif_len) {
463 /* Start reading at aligned_addr + dif_len */
464 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
465 aligned_addr);
466 for (i = dif_len; i < 4; i++, buf++)
467 read_register_byte(dev,
468 IPW_REG_INDIRECT_ACCESS_DATA + i,
469 buf);
470
471 len -= dif_len;
472 aligned_addr += 4;
473 }
474
475 /* read DWs through autoincrement registers */
476 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
477 aligned_len = len & (~0x3);
478 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
479 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
480
481 /* copy the last nibble */
482 dif_len = len - aligned_len;
483 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
484 for (i = 0; i < dif_len; i++, buf++)
485 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
486 }
487
488 static inline int ipw2100_hw_is_adapter_in_system(struct net_device *dev)
489 {
490 return (dev->base_addr &&
491 (readl
492 ((void __iomem *)(dev->base_addr +
493 IPW_REG_DOA_DEBUG_AREA_START))
494 == IPW_DATA_DOA_DEBUG_VALUE));
495 }
496
497 static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
498 void *val, u32 * len)
499 {
500 struct ipw2100_ordinals *ordinals = &priv->ordinals;
501 u32 addr;
502 u32 field_info;
503 u16 field_len;
504 u16 field_count;
505 u32 total_length;
506
507 if (ordinals->table1_addr == 0) {
508 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
509 "before they have been loaded.\n");
510 return -EINVAL;
511 }
512
513 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
514 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
515 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
516
517 printk(KERN_WARNING DRV_NAME
518 ": ordinal buffer length too small, need %zd\n",
519 IPW_ORD_TAB_1_ENTRY_SIZE);
520
521 return -EINVAL;
522 }
523
524 read_nic_dword(priv->net_dev,
525 ordinals->table1_addr + (ord << 2), &addr);
526 read_nic_dword(priv->net_dev, addr, val);
527
528 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
529
530 return 0;
531 }
532
533 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
534
535 ord -= IPW_START_ORD_TAB_2;
536
537 /* get the address of statistic */
538 read_nic_dword(priv->net_dev,
539 ordinals->table2_addr + (ord << 3), &addr);
540
541 /* get the second DW of statistics ;
542 * two 16-bit words - first is length, second is count */
543 read_nic_dword(priv->net_dev,
544 ordinals->table2_addr + (ord << 3) + sizeof(u32),
545 &field_info);
546
547 /* get each entry length */
548 field_len = *((u16 *) & field_info);
549
550 /* get number of entries */
551 field_count = *(((u16 *) & field_info) + 1);
552
553 /* abort if no enought memory */
554 total_length = field_len * field_count;
555 if (total_length > *len) {
556 *len = total_length;
557 return -EINVAL;
558 }
559
560 *len = total_length;
561 if (!total_length)
562 return 0;
563
564 /* read the ordinal data from the SRAM */
565 read_nic_memory(priv->net_dev, addr, total_length, val);
566
567 return 0;
568 }
569
570 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
571 "in table 2\n", ord);
572
573 return -EINVAL;
574 }
575
576 static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
577 u32 * len)
578 {
579 struct ipw2100_ordinals *ordinals = &priv->ordinals;
580 u32 addr;
581
582 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
583 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
584 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
585 IPW_DEBUG_INFO("wrong size\n");
586 return -EINVAL;
587 }
588
589 read_nic_dword(priv->net_dev,
590 ordinals->table1_addr + (ord << 2), &addr);
591
592 write_nic_dword(priv->net_dev, addr, *val);
593
594 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
595
596 return 0;
597 }
598
599 IPW_DEBUG_INFO("wrong table\n");
600 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
601 return -EINVAL;
602
603 return -EINVAL;
604 }
605
606 static char *snprint_line(char *buf, size_t count,
607 const u8 * data, u32 len, u32 ofs)
608 {
609 int out, i, j, l;
610 char c;
611
612 out = snprintf(buf, count, "%08X", ofs);
613
614 for (l = 0, i = 0; i < 2; i++) {
615 out += snprintf(buf + out, count - out, " ");
616 for (j = 0; j < 8 && l < len; j++, l++)
617 out += snprintf(buf + out, count - out, "%02X ",
618 data[(i * 8 + j)]);
619 for (; j < 8; j++)
620 out += snprintf(buf + out, count - out, " ");
621 }
622
623 out += snprintf(buf + out, count - out, " ");
624 for (l = 0, i = 0; i < 2; i++) {
625 out += snprintf(buf + out, count - out, " ");
626 for (j = 0; j < 8 && l < len; j++, l++) {
627 c = data[(i * 8 + j)];
628 if (!isascii(c) || !isprint(c))
629 c = '.';
630
631 out += snprintf(buf + out, count - out, "%c", c);
632 }
633
634 for (; j < 8; j++)
635 out += snprintf(buf + out, count - out, " ");
636 }
637
638 return buf;
639 }
640
641 static void printk_buf(int level, const u8 * data, u32 len)
642 {
643 char line[81];
644 u32 ofs = 0;
645 if (!(ipw2100_debug_level & level))
646 return;
647
648 while (len) {
649 printk(KERN_DEBUG "%s\n",
650 snprint_line(line, sizeof(line), &data[ofs],
651 min(len, 16U), ofs));
652 ofs += 16;
653 len -= min(len, 16U);
654 }
655 }
656
657 #define MAX_RESET_BACKOFF 10
658
659 static void schedule_reset(struct ipw2100_priv *priv)
660 {
661 unsigned long now = get_seconds();
662
663 /* If we haven't received a reset request within the backoff period,
664 * then we can reset the backoff interval so this reset occurs
665 * immediately */
666 if (priv->reset_backoff &&
667 (now - priv->last_reset > priv->reset_backoff))
668 priv->reset_backoff = 0;
669
670 priv->last_reset = get_seconds();
671
672 if (!(priv->status & STATUS_RESET_PENDING)) {
673 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%ds).\n",
674 priv->net_dev->name, priv->reset_backoff);
675 netif_carrier_off(priv->net_dev);
676 netif_stop_queue(priv->net_dev);
677 priv->status |= STATUS_RESET_PENDING;
678 if (priv->reset_backoff)
679 queue_delayed_work(priv->workqueue, &priv->reset_work,
680 priv->reset_backoff * HZ);
681 else
682 queue_delayed_work(priv->workqueue, &priv->reset_work,
683 0);
684
685 if (priv->reset_backoff < MAX_RESET_BACKOFF)
686 priv->reset_backoff++;
687
688 wake_up_interruptible(&priv->wait_command_queue);
689 } else
690 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
691 priv->net_dev->name);
692
693 }
694
695 #define HOST_COMPLETE_TIMEOUT (2 * HZ)
696 static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
697 struct host_command *cmd)
698 {
699 struct list_head *element;
700 struct ipw2100_tx_packet *packet;
701 unsigned long flags;
702 int err = 0;
703
704 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
705 command_types[cmd->host_command], cmd->host_command,
706 cmd->host_command_length);
707 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
708 cmd->host_command_length);
709
710 spin_lock_irqsave(&priv->low_lock, flags);
711
712 if (priv->fatal_error) {
713 IPW_DEBUG_INFO
714 ("Attempt to send command while hardware in fatal error condition.\n");
715 err = -EIO;
716 goto fail_unlock;
717 }
718
719 if (!(priv->status & STATUS_RUNNING)) {
720 IPW_DEBUG_INFO
721 ("Attempt to send command while hardware is not running.\n");
722 err = -EIO;
723 goto fail_unlock;
724 }
725
726 if (priv->status & STATUS_CMD_ACTIVE) {
727 IPW_DEBUG_INFO
728 ("Attempt to send command while another command is pending.\n");
729 err = -EBUSY;
730 goto fail_unlock;
731 }
732
733 if (list_empty(&priv->msg_free_list)) {
734 IPW_DEBUG_INFO("no available msg buffers\n");
735 goto fail_unlock;
736 }
737
738 priv->status |= STATUS_CMD_ACTIVE;
739 priv->messages_sent++;
740
741 element = priv->msg_free_list.next;
742
743 packet = list_entry(element, struct ipw2100_tx_packet, list);
744 packet->jiffy_start = jiffies;
745
746 /* initialize the firmware command packet */
747 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
748 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
749 packet->info.c_struct.cmd->host_command_len_reg =
750 cmd->host_command_length;
751 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
752
753 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
754 cmd->host_command_parameters,
755 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
756
757 list_del(element);
758 DEC_STAT(&priv->msg_free_stat);
759
760 list_add_tail(element, &priv->msg_pend_list);
761 INC_STAT(&priv->msg_pend_stat);
762
763 ipw2100_tx_send_commands(priv);
764 ipw2100_tx_send_data(priv);
765
766 spin_unlock_irqrestore(&priv->low_lock, flags);
767
768 /*
769 * We must wait for this command to complete before another
770 * command can be sent... but if we wait more than 3 seconds
771 * then there is a problem.
772 */
773
774 err =
775 wait_event_interruptible_timeout(priv->wait_command_queue,
776 !(priv->
777 status & STATUS_CMD_ACTIVE),
778 HOST_COMPLETE_TIMEOUT);
779
780 if (err == 0) {
781 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
782 1000 * (HOST_COMPLETE_TIMEOUT / HZ));
783 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
784 priv->status &= ~STATUS_CMD_ACTIVE;
785 schedule_reset(priv);
786 return -EIO;
787 }
788
789 if (priv->fatal_error) {
790 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
791 priv->net_dev->name);
792 return -EIO;
793 }
794
795 /* !!!!! HACK TEST !!!!!
796 * When lots of debug trace statements are enabled, the driver
797 * doesn't seem to have as many firmware restart cycles...
798 *
799 * As a test, we're sticking in a 1/100s delay here */
800 schedule_timeout_uninterruptible(msecs_to_jiffies(10));
801
802 return 0;
803
804 fail_unlock:
805 spin_unlock_irqrestore(&priv->low_lock, flags);
806
807 return err;
808 }
809
810 /*
811 * Verify the values and data access of the hardware
812 * No locks needed or used. No functions called.
813 */
814 static int ipw2100_verify(struct ipw2100_priv *priv)
815 {
816 u32 data1, data2;
817 u32 address;
818
819 u32 val1 = 0x76543210;
820 u32 val2 = 0xFEDCBA98;
821
822 /* Domain 0 check - all values should be DOA_DEBUG */
823 for (address = IPW_REG_DOA_DEBUG_AREA_START;
824 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
825 read_register(priv->net_dev, address, &data1);
826 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
827 return -EIO;
828 }
829
830 /* Domain 1 check - use arbitrary read/write compare */
831 for (address = 0; address < 5; address++) {
832 /* The memory area is not used now */
833 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
834 val1);
835 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
836 val2);
837 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
838 &data1);
839 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
840 &data2);
841 if (val1 == data1 && val2 == data2)
842 return 0;
843 }
844
845 return -EIO;
846 }
847
848 /*
849 *
850 * Loop until the CARD_DISABLED bit is the same value as the
851 * supplied parameter
852 *
853 * TODO: See if it would be more efficient to do a wait/wake
854 * cycle and have the completion event trigger the wakeup
855 *
856 */
857 #define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
858 static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
859 {
860 int i;
861 u32 card_state;
862 u32 len = sizeof(card_state);
863 int err;
864
865 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
866 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
867 &card_state, &len);
868 if (err) {
869 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
870 "failed.\n");
871 return 0;
872 }
873
874 /* We'll break out if either the HW state says it is
875 * in the state we want, or if HOST_COMPLETE command
876 * finishes */
877 if ((card_state == state) ||
878 ((priv->status & STATUS_ENABLED) ?
879 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
880 if (state == IPW_HW_STATE_ENABLED)
881 priv->status |= STATUS_ENABLED;
882 else
883 priv->status &= ~STATUS_ENABLED;
884
885 return 0;
886 }
887
888 udelay(50);
889 }
890
891 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
892 state ? "DISABLED" : "ENABLED");
893 return -EIO;
894 }
895
896 /*********************************************************************
897 Procedure : sw_reset_and_clock
898 Purpose : Asserts s/w reset, asserts clock initialization
899 and waits for clock stabilization
900 ********************************************************************/
901 static int sw_reset_and_clock(struct ipw2100_priv *priv)
902 {
903 int i;
904 u32 r;
905
906 // assert s/w reset
907 write_register(priv->net_dev, IPW_REG_RESET_REG,
908 IPW_AUX_HOST_RESET_REG_SW_RESET);
909
910 // wait for clock stabilization
911 for (i = 0; i < 1000; i++) {
912 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
913
914 // check clock ready bit
915 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
916 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
917 break;
918 }
919
920 if (i == 1000)
921 return -EIO; // TODO: better error value
922
923 /* set "initialization complete" bit to move adapter to
924 * D0 state */
925 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
926 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
927
928 /* wait for clock stabilization */
929 for (i = 0; i < 10000; i++) {
930 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
931
932 /* check clock ready bit */
933 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
934 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
935 break;
936 }
937
938 if (i == 10000)
939 return -EIO; /* TODO: better error value */
940
941 /* set D0 standby bit */
942 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
943 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
944 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
945
946 return 0;
947 }
948
949 /*********************************************************************
950 Procedure : ipw2100_download_firmware
951 Purpose : Initiaze adapter after power on.
952 The sequence is:
953 1. assert s/w reset first!
954 2. awake clocks & wait for clock stabilization
955 3. hold ARC (don't ask me why...)
956 4. load Dino ucode and reset/clock init again
957 5. zero-out shared mem
958 6. download f/w
959 *******************************************************************/
960 static int ipw2100_download_firmware(struct ipw2100_priv *priv)
961 {
962 u32 address;
963 int err;
964
965 #ifndef CONFIG_PM
966 /* Fetch the firmware and microcode */
967 struct ipw2100_fw ipw2100_firmware;
968 #endif
969
970 if (priv->fatal_error) {
971 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
972 "fatal error %d. Interface must be brought down.\n",
973 priv->net_dev->name, priv->fatal_error);
974 return -EINVAL;
975 }
976 #ifdef CONFIG_PM
977 if (!ipw2100_firmware.version) {
978 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
979 if (err) {
980 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
981 priv->net_dev->name, err);
982 priv->fatal_error = IPW2100_ERR_FW_LOAD;
983 goto fail;
984 }
985 }
986 #else
987 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
988 if (err) {
989 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
990 priv->net_dev->name, err);
991 priv->fatal_error = IPW2100_ERR_FW_LOAD;
992 goto fail;
993 }
994 #endif
995 priv->firmware_version = ipw2100_firmware.version;
996
997 /* s/w reset and clock stabilization */
998 err = sw_reset_and_clock(priv);
999 if (err) {
1000 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1001 priv->net_dev->name, err);
1002 goto fail;
1003 }
1004
1005 err = ipw2100_verify(priv);
1006 if (err) {
1007 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1008 priv->net_dev->name, err);
1009 goto fail;
1010 }
1011
1012 /* Hold ARC */
1013 write_nic_dword(priv->net_dev,
1014 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1015
1016 /* allow ARC to run */
1017 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1018
1019 /* load microcode */
1020 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1021 if (err) {
1022 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1023 priv->net_dev->name, err);
1024 goto fail;
1025 }
1026
1027 /* release ARC */
1028 write_nic_dword(priv->net_dev,
1029 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1030
1031 /* s/w reset and clock stabilization (again!!!) */
1032 err = sw_reset_and_clock(priv);
1033 if (err) {
1034 printk(KERN_ERR DRV_NAME
1035 ": %s: sw_reset_and_clock failed: %d\n",
1036 priv->net_dev->name, err);
1037 goto fail;
1038 }
1039
1040 /* load f/w */
1041 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1042 if (err) {
1043 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1044 priv->net_dev->name, err);
1045 goto fail;
1046 }
1047 #ifndef CONFIG_PM
1048 /*
1049 * When the .resume method of the driver is called, the other
1050 * part of the system, i.e. the ide driver could still stay in
1051 * the suspend stage. This prevents us from loading the firmware
1052 * from the disk. --YZ
1053 */
1054
1055 /* free any storage allocated for firmware image */
1056 ipw2100_release_firmware(priv, &ipw2100_firmware);
1057 #endif
1058
1059 /* zero out Domain 1 area indirectly (Si requirement) */
1060 for (address = IPW_HOST_FW_SHARED_AREA0;
1061 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1062 write_nic_dword(priv->net_dev, address, 0);
1063 for (address = IPW_HOST_FW_SHARED_AREA1;
1064 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1065 write_nic_dword(priv->net_dev, address, 0);
1066 for (address = IPW_HOST_FW_SHARED_AREA2;
1067 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1068 write_nic_dword(priv->net_dev, address, 0);
1069 for (address = IPW_HOST_FW_SHARED_AREA3;
1070 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1071 write_nic_dword(priv->net_dev, address, 0);
1072 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1073 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1074 write_nic_dword(priv->net_dev, address, 0);
1075
1076 return 0;
1077
1078 fail:
1079 ipw2100_release_firmware(priv, &ipw2100_firmware);
1080 return err;
1081 }
1082
1083 static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1084 {
1085 if (priv->status & STATUS_INT_ENABLED)
1086 return;
1087 priv->status |= STATUS_INT_ENABLED;
1088 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1089 }
1090
1091 static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1092 {
1093 if (!(priv->status & STATUS_INT_ENABLED))
1094 return;
1095 priv->status &= ~STATUS_INT_ENABLED;
1096 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1097 }
1098
1099 static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1100 {
1101 struct ipw2100_ordinals *ord = &priv->ordinals;
1102
1103 IPW_DEBUG_INFO("enter\n");
1104
1105 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1106 &ord->table1_addr);
1107
1108 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1109 &ord->table2_addr);
1110
1111 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1112 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1113
1114 ord->table2_size &= 0x0000FFFF;
1115
1116 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1117 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1118 IPW_DEBUG_INFO("exit\n");
1119 }
1120
1121 static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1122 {
1123 u32 reg = 0;
1124 /*
1125 * Set GPIO 3 writable by FW; GPIO 1 writable
1126 * by driver and enable clock
1127 */
1128 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1129 IPW_BIT_GPIO_LED_OFF);
1130 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1131 }
1132
1133 static int rf_kill_active(struct ipw2100_priv *priv)
1134 {
1135 #define MAX_RF_KILL_CHECKS 5
1136 #define RF_KILL_CHECK_DELAY 40
1137
1138 unsigned short value = 0;
1139 u32 reg = 0;
1140 int i;
1141
1142 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1143 priv->status &= ~STATUS_RF_KILL_HW;
1144 return 0;
1145 }
1146
1147 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1148 udelay(RF_KILL_CHECK_DELAY);
1149 read_register(priv->net_dev, IPW_REG_GPIO, &reg);
1150 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1151 }
1152
1153 if (value == 0)
1154 priv->status |= STATUS_RF_KILL_HW;
1155 else
1156 priv->status &= ~STATUS_RF_KILL_HW;
1157
1158 return (value == 0);
1159 }
1160
1161 static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1162 {
1163 u32 addr, len;
1164 u32 val;
1165
1166 /*
1167 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1168 */
1169 len = sizeof(addr);
1170 if (ipw2100_get_ordinal
1171 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1172 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1173 __LINE__);
1174 return -EIO;
1175 }
1176
1177 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1178
1179 /*
1180 * EEPROM version is the byte at offset 0xfd in firmware
1181 * We read 4 bytes, then shift out the byte we actually want */
1182 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1183 priv->eeprom_version = (val >> 24) & 0xFF;
1184 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1185
1186 /*
1187 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1188 *
1189 * notice that the EEPROM bit is reverse polarity, i.e.
1190 * bit = 0 signifies HW RF kill switch is supported
1191 * bit = 1 signifies HW RF kill switch is NOT supported
1192 */
1193 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1194 if (!((val >> 24) & 0x01))
1195 priv->hw_features |= HW_FEATURE_RFKILL;
1196
1197 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1198 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1199
1200 return 0;
1201 }
1202
1203 /*
1204 * Start firmware execution after power on and intialization
1205 * The sequence is:
1206 * 1. Release ARC
1207 * 2. Wait for f/w initialization completes;
1208 */
1209 static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1210 {
1211 int i;
1212 u32 inta, inta_mask, gpio;
1213
1214 IPW_DEBUG_INFO("enter\n");
1215
1216 if (priv->status & STATUS_RUNNING)
1217 return 0;
1218
1219 /*
1220 * Initialize the hw - drive adapter to DO state by setting
1221 * init_done bit. Wait for clk_ready bit and Download
1222 * fw & dino ucode
1223 */
1224 if (ipw2100_download_firmware(priv)) {
1225 printk(KERN_ERR DRV_NAME
1226 ": %s: Failed to power on the adapter.\n",
1227 priv->net_dev->name);
1228 return -EIO;
1229 }
1230
1231 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1232 * in the firmware RBD and TBD ring queue */
1233 ipw2100_queues_initialize(priv);
1234
1235 ipw2100_hw_set_gpio(priv);
1236
1237 /* TODO -- Look at disabling interrupts here to make sure none
1238 * get fired during FW initialization */
1239
1240 /* Release ARC - clear reset bit */
1241 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1242
1243 /* wait for f/w intialization complete */
1244 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1245 i = 5000;
1246 do {
1247 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1248 /* Todo... wait for sync command ... */
1249
1250 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1251
1252 /* check "init done" bit */
1253 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1254 /* reset "init done" bit */
1255 write_register(priv->net_dev, IPW_REG_INTA,
1256 IPW2100_INTA_FW_INIT_DONE);
1257 break;
1258 }
1259
1260 /* check error conditions : we check these after the firmware
1261 * check so that if there is an error, the interrupt handler
1262 * will see it and the adapter will be reset */
1263 if (inta &
1264 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1265 /* clear error conditions */
1266 write_register(priv->net_dev, IPW_REG_INTA,
1267 IPW2100_INTA_FATAL_ERROR |
1268 IPW2100_INTA_PARITY_ERROR);
1269 }
1270 } while (--i);
1271
1272 /* Clear out any pending INTAs since we aren't supposed to have
1273 * interrupts enabled at this point... */
1274 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1275 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1276 inta &= IPW_INTERRUPT_MASK;
1277 /* Clear out any pending interrupts */
1278 if (inta & inta_mask)
1279 write_register(priv->net_dev, IPW_REG_INTA, inta);
1280
1281 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1282 i ? "SUCCESS" : "FAILED");
1283
1284 if (!i) {
1285 printk(KERN_WARNING DRV_NAME
1286 ": %s: Firmware did not initialize.\n",
1287 priv->net_dev->name);
1288 return -EIO;
1289 }
1290
1291 /* allow firmware to write to GPIO1 & GPIO3 */
1292 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1293
1294 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1295
1296 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1297
1298 /* Ready to receive commands */
1299 priv->status |= STATUS_RUNNING;
1300
1301 /* The adapter has been reset; we are not associated */
1302 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1303
1304 IPW_DEBUG_INFO("exit\n");
1305
1306 return 0;
1307 }
1308
1309 static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1310 {
1311 if (!priv->fatal_error)
1312 return;
1313
1314 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1315 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1316 priv->fatal_error = 0;
1317 }
1318
1319 /* NOTE: Our interrupt is disabled when this method is called */
1320 static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1321 {
1322 u32 reg;
1323 int i;
1324
1325 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1326
1327 ipw2100_hw_set_gpio(priv);
1328
1329 /* Step 1. Stop Master Assert */
1330 write_register(priv->net_dev, IPW_REG_RESET_REG,
1331 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1332
1333 /* Step 2. Wait for stop Master Assert
1334 * (not more then 50us, otherwise ret error */
1335 i = 5;
1336 do {
1337 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1338 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1339
1340 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1341 break;
1342 } while (--i);
1343
1344 priv->status &= ~STATUS_RESET_PENDING;
1345
1346 if (!i) {
1347 IPW_DEBUG_INFO
1348 ("exit - waited too long for master assert stop\n");
1349 return -EIO;
1350 }
1351
1352 write_register(priv->net_dev, IPW_REG_RESET_REG,
1353 IPW_AUX_HOST_RESET_REG_SW_RESET);
1354
1355 /* Reset any fatal_error conditions */
1356 ipw2100_reset_fatalerror(priv);
1357
1358 /* At this point, the adapter is now stopped and disabled */
1359 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1360 STATUS_ASSOCIATED | STATUS_ENABLED);
1361
1362 return 0;
1363 }
1364
1365 /*
1366 * Send the CARD_DISABLE_PHY_OFF comamnd to the card to disable it
1367 *
1368 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1369 *
1370 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1371 * if STATUS_ASSN_LOST is sent.
1372 */
1373 static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1374 {
1375
1376 #define HW_PHY_OFF_LOOP_DELAY (HZ / 5000)
1377
1378 struct host_command cmd = {
1379 .host_command = CARD_DISABLE_PHY_OFF,
1380 .host_command_sequence = 0,
1381 .host_command_length = 0,
1382 };
1383 int err, i;
1384 u32 val1, val2;
1385
1386 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1387
1388 /* Turn off the radio */
1389 err = ipw2100_hw_send_command(priv, &cmd);
1390 if (err)
1391 return err;
1392
1393 for (i = 0; i < 2500; i++) {
1394 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1395 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1396
1397 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1398 (val2 & IPW2100_COMMAND_PHY_OFF))
1399 return 0;
1400
1401 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1402 }
1403
1404 return -EIO;
1405 }
1406
1407 static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1408 {
1409 struct host_command cmd = {
1410 .host_command = HOST_COMPLETE,
1411 .host_command_sequence = 0,
1412 .host_command_length = 0
1413 };
1414 int err = 0;
1415
1416 IPW_DEBUG_HC("HOST_COMPLETE\n");
1417
1418 if (priv->status & STATUS_ENABLED)
1419 return 0;
1420
1421 mutex_lock(&priv->adapter_mutex);
1422
1423 if (rf_kill_active(priv)) {
1424 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1425 goto fail_up;
1426 }
1427
1428 err = ipw2100_hw_send_command(priv, &cmd);
1429 if (err) {
1430 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1431 goto fail_up;
1432 }
1433
1434 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1435 if (err) {
1436 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1437 priv->net_dev->name);
1438 goto fail_up;
1439 }
1440
1441 if (priv->stop_hang_check) {
1442 priv->stop_hang_check = 0;
1443 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
1444 }
1445
1446 fail_up:
1447 mutex_unlock(&priv->adapter_mutex);
1448 return err;
1449 }
1450
1451 static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1452 {
1453 #define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1454
1455 struct host_command cmd = {
1456 .host_command = HOST_PRE_POWER_DOWN,
1457 .host_command_sequence = 0,
1458 .host_command_length = 0,
1459 };
1460 int err, i;
1461 u32 reg;
1462
1463 if (!(priv->status & STATUS_RUNNING))
1464 return 0;
1465
1466 priv->status |= STATUS_STOPPING;
1467
1468 /* We can only shut down the card if the firmware is operational. So,
1469 * if we haven't reset since a fatal_error, then we can not send the
1470 * shutdown commands. */
1471 if (!priv->fatal_error) {
1472 /* First, make sure the adapter is enabled so that the PHY_OFF
1473 * command can shut it down */
1474 ipw2100_enable_adapter(priv);
1475
1476 err = ipw2100_hw_phy_off(priv);
1477 if (err)
1478 printk(KERN_WARNING DRV_NAME
1479 ": Error disabling radio %d\n", err);
1480
1481 /*
1482 * If in D0-standby mode going directly to D3 may cause a
1483 * PCI bus violation. Therefore we must change out of the D0
1484 * state.
1485 *
1486 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1487 * hardware from going into standby mode and will transition
1488 * out of D0-standby if it is already in that state.
1489 *
1490 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1491 * driver upon completion. Once received, the driver can
1492 * proceed to the D3 state.
1493 *
1494 * Prepare for power down command to fw. This command would
1495 * take HW out of D0-standby and prepare it for D3 state.
1496 *
1497 * Currently FW does not support event notification for this
1498 * event. Therefore, skip waiting for it. Just wait a fixed
1499 * 100ms
1500 */
1501 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1502
1503 err = ipw2100_hw_send_command(priv, &cmd);
1504 if (err)
1505 printk(KERN_WARNING DRV_NAME ": "
1506 "%s: Power down command failed: Error %d\n",
1507 priv->net_dev->name, err);
1508 else
1509 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1510 }
1511
1512 priv->status &= ~STATUS_ENABLED;
1513
1514 /*
1515 * Set GPIO 3 writable by FW; GPIO 1 writable
1516 * by driver and enable clock
1517 */
1518 ipw2100_hw_set_gpio(priv);
1519
1520 /*
1521 * Power down adapter. Sequence:
1522 * 1. Stop master assert (RESET_REG[9]=1)
1523 * 2. Wait for stop master (RESET_REG[8]==1)
1524 * 3. S/w reset assert (RESET_REG[7] = 1)
1525 */
1526
1527 /* Stop master assert */
1528 write_register(priv->net_dev, IPW_REG_RESET_REG,
1529 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1530
1531 /* wait stop master not more than 50 usec.
1532 * Otherwise return error. */
1533 for (i = 5; i > 0; i--) {
1534 udelay(10);
1535
1536 /* Check master stop bit */
1537 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1538
1539 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1540 break;
1541 }
1542
1543 if (i == 0)
1544 printk(KERN_WARNING DRV_NAME
1545 ": %s: Could now power down adapter.\n",
1546 priv->net_dev->name);
1547
1548 /* assert s/w reset */
1549 write_register(priv->net_dev, IPW_REG_RESET_REG,
1550 IPW_AUX_HOST_RESET_REG_SW_RESET);
1551
1552 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1553
1554 return 0;
1555 }
1556
1557 static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1558 {
1559 struct host_command cmd = {
1560 .host_command = CARD_DISABLE,
1561 .host_command_sequence = 0,
1562 .host_command_length = 0
1563 };
1564 int err = 0;
1565
1566 IPW_DEBUG_HC("CARD_DISABLE\n");
1567
1568 if (!(priv->status & STATUS_ENABLED))
1569 return 0;
1570
1571 /* Make sure we clear the associated state */
1572 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1573
1574 if (!priv->stop_hang_check) {
1575 priv->stop_hang_check = 1;
1576 cancel_delayed_work(&priv->hang_check);
1577 }
1578
1579 mutex_lock(&priv->adapter_mutex);
1580
1581 err = ipw2100_hw_send_command(priv, &cmd);
1582 if (err) {
1583 printk(KERN_WARNING DRV_NAME
1584 ": exit - failed to send CARD_DISABLE command\n");
1585 goto fail_up;
1586 }
1587
1588 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1589 if (err) {
1590 printk(KERN_WARNING DRV_NAME
1591 ": exit - card failed to change to DISABLED\n");
1592 goto fail_up;
1593 }
1594
1595 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1596
1597 fail_up:
1598 mutex_unlock(&priv->adapter_mutex);
1599 return err;
1600 }
1601
1602 static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1603 {
1604 struct host_command cmd = {
1605 .host_command = SET_SCAN_OPTIONS,
1606 .host_command_sequence = 0,
1607 .host_command_length = 8
1608 };
1609 int err;
1610
1611 IPW_DEBUG_INFO("enter\n");
1612
1613 IPW_DEBUG_SCAN("setting scan options\n");
1614
1615 cmd.host_command_parameters[0] = 0;
1616
1617 if (!(priv->config & CFG_ASSOCIATE))
1618 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1619 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1620 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1621 if (priv->config & CFG_PASSIVE_SCAN)
1622 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1623
1624 cmd.host_command_parameters[1] = priv->channel_mask;
1625
1626 err = ipw2100_hw_send_command(priv, &cmd);
1627
1628 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1629 cmd.host_command_parameters[0]);
1630
1631 return err;
1632 }
1633
1634 static int ipw2100_start_scan(struct ipw2100_priv *priv)
1635 {
1636 struct host_command cmd = {
1637 .host_command = BROADCAST_SCAN,
1638 .host_command_sequence = 0,
1639 .host_command_length = 4
1640 };
1641 int err;
1642
1643 IPW_DEBUG_HC("START_SCAN\n");
1644
1645 cmd.host_command_parameters[0] = 0;
1646
1647 /* No scanning if in monitor mode */
1648 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1649 return 1;
1650
1651 if (priv->status & STATUS_SCANNING) {
1652 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1653 return 0;
1654 }
1655
1656 IPW_DEBUG_INFO("enter\n");
1657
1658 /* Not clearing here; doing so makes iwlist always return nothing...
1659 *
1660 * We should modify the table logic to use aging tables vs. clearing
1661 * the table on each scan start.
1662 */
1663 IPW_DEBUG_SCAN("starting scan\n");
1664
1665 priv->status |= STATUS_SCANNING;
1666 err = ipw2100_hw_send_command(priv, &cmd);
1667 if (err)
1668 priv->status &= ~STATUS_SCANNING;
1669
1670 IPW_DEBUG_INFO("exit\n");
1671
1672 return err;
1673 }
1674
1675 static const struct ieee80211_geo ipw_geos[] = {
1676 { /* Restricted */
1677 "---",
1678 .bg_channels = 14,
1679 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
1680 {2427, 4}, {2432, 5}, {2437, 6},
1681 {2442, 7}, {2447, 8}, {2452, 9},
1682 {2457, 10}, {2462, 11}, {2467, 12},
1683 {2472, 13}, {2484, 14}},
1684 },
1685 };
1686
1687 static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1688 {
1689 unsigned long flags;
1690 int rc = 0;
1691 u32 lock;
1692 u32 ord_len = sizeof(lock);
1693
1694 /* Quite if manually disabled. */
1695 if (priv->status & STATUS_RF_KILL_SW) {
1696 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1697 "switch\n", priv->net_dev->name);
1698 return 0;
1699 }
1700
1701 /* the ipw2100 hardware really doesn't want power management delays
1702 * longer than 175usec
1703 */
1704 modify_acceptable_latency("ipw2100", 175);
1705
1706 /* If the interrupt is enabled, turn it off... */
1707 spin_lock_irqsave(&priv->low_lock, flags);
1708 ipw2100_disable_interrupts(priv);
1709
1710 /* Reset any fatal_error conditions */
1711 ipw2100_reset_fatalerror(priv);
1712 spin_unlock_irqrestore(&priv->low_lock, flags);
1713
1714 if (priv->status & STATUS_POWERED ||
1715 (priv->status & STATUS_RESET_PENDING)) {
1716 /* Power cycle the card ... */
1717 if (ipw2100_power_cycle_adapter(priv)) {
1718 printk(KERN_WARNING DRV_NAME
1719 ": %s: Could not cycle adapter.\n",
1720 priv->net_dev->name);
1721 rc = 1;
1722 goto exit;
1723 }
1724 } else
1725 priv->status |= STATUS_POWERED;
1726
1727 /* Load the firmware, start the clocks, etc. */
1728 if (ipw2100_start_adapter(priv)) {
1729 printk(KERN_ERR DRV_NAME
1730 ": %s: Failed to start the firmware.\n",
1731 priv->net_dev->name);
1732 rc = 1;
1733 goto exit;
1734 }
1735
1736 ipw2100_initialize_ordinals(priv);
1737
1738 /* Determine capabilities of this particular HW configuration */
1739 if (ipw2100_get_hw_features(priv)) {
1740 printk(KERN_ERR DRV_NAME
1741 ": %s: Failed to determine HW features.\n",
1742 priv->net_dev->name);
1743 rc = 1;
1744 goto exit;
1745 }
1746
1747 /* Initialize the geo */
1748 if (ieee80211_set_geo(priv->ieee, &ipw_geos[0])) {
1749 printk(KERN_WARNING DRV_NAME "Could not set geo\n");
1750 return 0;
1751 }
1752 priv->ieee->freq_band = IEEE80211_24GHZ_BAND;
1753
1754 lock = LOCK_NONE;
1755 if (ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len)) {
1756 printk(KERN_ERR DRV_NAME
1757 ": %s: Failed to clear ordinal lock.\n",
1758 priv->net_dev->name);
1759 rc = 1;
1760 goto exit;
1761 }
1762
1763 priv->status &= ~STATUS_SCANNING;
1764
1765 if (rf_kill_active(priv)) {
1766 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1767 priv->net_dev->name);
1768
1769 if (priv->stop_rf_kill) {
1770 priv->stop_rf_kill = 0;
1771 queue_delayed_work(priv->workqueue, &priv->rf_kill,
1772 round_jiffies_relative(HZ));
1773 }
1774
1775 deferred = 1;
1776 }
1777
1778 /* Turn on the interrupt so that commands can be processed */
1779 ipw2100_enable_interrupts(priv);
1780
1781 /* Send all of the commands that must be sent prior to
1782 * HOST_COMPLETE */
1783 if (ipw2100_adapter_setup(priv)) {
1784 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1785 priv->net_dev->name);
1786 rc = 1;
1787 goto exit;
1788 }
1789
1790 if (!deferred) {
1791 /* Enable the adapter - sends HOST_COMPLETE */
1792 if (ipw2100_enable_adapter(priv)) {
1793 printk(KERN_ERR DRV_NAME ": "
1794 "%s: failed in call to enable adapter.\n",
1795 priv->net_dev->name);
1796 ipw2100_hw_stop_adapter(priv);
1797 rc = 1;
1798 goto exit;
1799 }
1800
1801 /* Start a scan . . . */
1802 ipw2100_set_scan_options(priv);
1803 ipw2100_start_scan(priv);
1804 }
1805
1806 exit:
1807 return rc;
1808 }
1809
1810 /* Called by register_netdev() */
1811 static int ipw2100_net_init(struct net_device *dev)
1812 {
1813 struct ipw2100_priv *priv = ieee80211_priv(dev);
1814 return ipw2100_up(priv, 1);
1815 }
1816
1817 static void ipw2100_down(struct ipw2100_priv *priv)
1818 {
1819 unsigned long flags;
1820 union iwreq_data wrqu = {
1821 .ap_addr = {
1822 .sa_family = ARPHRD_ETHER}
1823 };
1824 int associated = priv->status & STATUS_ASSOCIATED;
1825
1826 /* Kill the RF switch timer */
1827 if (!priv->stop_rf_kill) {
1828 priv->stop_rf_kill = 1;
1829 cancel_delayed_work(&priv->rf_kill);
1830 }
1831
1832 /* Kill the firmare hang check timer */
1833 if (!priv->stop_hang_check) {
1834 priv->stop_hang_check = 1;
1835 cancel_delayed_work(&priv->hang_check);
1836 }
1837
1838 /* Kill any pending resets */
1839 if (priv->status & STATUS_RESET_PENDING)
1840 cancel_delayed_work(&priv->reset_work);
1841
1842 /* Make sure the interrupt is on so that FW commands will be
1843 * processed correctly */
1844 spin_lock_irqsave(&priv->low_lock, flags);
1845 ipw2100_enable_interrupts(priv);
1846 spin_unlock_irqrestore(&priv->low_lock, flags);
1847
1848 if (ipw2100_hw_stop_adapter(priv))
1849 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1850 priv->net_dev->name);
1851
1852 /* Do not disable the interrupt until _after_ we disable
1853 * the adaptor. Otherwise the CARD_DISABLE command will never
1854 * be ack'd by the firmware */
1855 spin_lock_irqsave(&priv->low_lock, flags);
1856 ipw2100_disable_interrupts(priv);
1857 spin_unlock_irqrestore(&priv->low_lock, flags);
1858
1859 modify_acceptable_latency("ipw2100", INFINITE_LATENCY);
1860
1861 /* We have to signal any supplicant if we are disassociating */
1862 if (associated)
1863 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1864
1865 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1866 netif_carrier_off(priv->net_dev);
1867 netif_stop_queue(priv->net_dev);
1868 }
1869
1870 static void ipw2100_reset_adapter(struct work_struct *work)
1871 {
1872 struct ipw2100_priv *priv =
1873 container_of(work, struct ipw2100_priv, reset_work.work);
1874 unsigned long flags;
1875 union iwreq_data wrqu = {
1876 .ap_addr = {
1877 .sa_family = ARPHRD_ETHER}
1878 };
1879 int associated = priv->status & STATUS_ASSOCIATED;
1880
1881 spin_lock_irqsave(&priv->low_lock, flags);
1882 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1883 priv->resets++;
1884 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1885 priv->status |= STATUS_SECURITY_UPDATED;
1886
1887 /* Force a power cycle even if interface hasn't been opened
1888 * yet */
1889 cancel_delayed_work(&priv->reset_work);
1890 priv->status |= STATUS_RESET_PENDING;
1891 spin_unlock_irqrestore(&priv->low_lock, flags);
1892
1893 mutex_lock(&priv->action_mutex);
1894 /* stop timed checks so that they don't interfere with reset */
1895 priv->stop_hang_check = 1;
1896 cancel_delayed_work(&priv->hang_check);
1897
1898 /* We have to signal any supplicant if we are disassociating */
1899 if (associated)
1900 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1901
1902 ipw2100_up(priv, 0);
1903 mutex_unlock(&priv->action_mutex);
1904
1905 }
1906
1907 static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1908 {
1909
1910 #define MAC_ASSOCIATION_READ_DELAY (HZ)
1911 int ret, len, essid_len;
1912 char essid[IW_ESSID_MAX_SIZE];
1913 u32 txrate;
1914 u32 chan;
1915 char *txratename;
1916 u8 bssid[ETH_ALEN];
1917 DECLARE_MAC_BUF(mac);
1918
1919 /*
1920 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1921 * an actual MAC of the AP. Seems like FW sets this
1922 * address too late. Read it later and expose through
1923 * /proc or schedule a later task to query and update
1924 */
1925
1926 essid_len = IW_ESSID_MAX_SIZE;
1927 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
1928 essid, &essid_len);
1929 if (ret) {
1930 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1931 __LINE__);
1932 return;
1933 }
1934
1935 len = sizeof(u32);
1936 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
1937 if (ret) {
1938 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1939 __LINE__);
1940 return;
1941 }
1942
1943 len = sizeof(u32);
1944 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
1945 if (ret) {
1946 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1947 __LINE__);
1948 return;
1949 }
1950 len = ETH_ALEN;
1951 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len);
1952 if (ret) {
1953 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1954 __LINE__);
1955 return;
1956 }
1957 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
1958
1959 switch (txrate) {
1960 case TX_RATE_1_MBIT:
1961 txratename = "1Mbps";
1962 break;
1963 case TX_RATE_2_MBIT:
1964 txratename = "2Mbsp";
1965 break;
1966 case TX_RATE_5_5_MBIT:
1967 txratename = "5.5Mbps";
1968 break;
1969 case TX_RATE_11_MBIT:
1970 txratename = "11Mbps";
1971 break;
1972 default:
1973 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
1974 txratename = "unknown rate";
1975 break;
1976 }
1977
1978 IPW_DEBUG_INFO("%s: Associated with '%s' at %s, channel %d (BSSID="
1979 "%s)\n",
1980 priv->net_dev->name, escape_essid(essid, essid_len),
1981 txratename, chan, print_mac(mac, bssid));
1982
1983 /* now we copy read ssid into dev */
1984 if (!(priv->config & CFG_STATIC_ESSID)) {
1985 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
1986 memcpy(priv->essid, essid, priv->essid_len);
1987 }
1988 priv->channel = chan;
1989 memcpy(priv->bssid, bssid, ETH_ALEN);
1990
1991 priv->status |= STATUS_ASSOCIATING;
1992 priv->connect_start = get_seconds();
1993
1994 queue_delayed_work(priv->workqueue, &priv->wx_event_work, HZ / 10);
1995 }
1996
1997 static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
1998 int length, int batch_mode)
1999 {
2000 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
2001 struct host_command cmd = {
2002 .host_command = SSID,
2003 .host_command_sequence = 0,
2004 .host_command_length = ssid_len
2005 };
2006 int err;
2007
2008 IPW_DEBUG_HC("SSID: '%s'\n", escape_essid(essid, ssid_len));
2009
2010 if (ssid_len)
2011 memcpy(cmd.host_command_parameters, essid, ssid_len);
2012
2013 if (!batch_mode) {
2014 err = ipw2100_disable_adapter(priv);
2015 if (err)
2016 return err;
2017 }
2018
2019 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2020 * disable auto association -- so we cheat by setting a bogus SSID */
2021 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2022 int i;
2023 u8 *bogus = (u8 *) cmd.host_command_parameters;
2024 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2025 bogus[i] = 0x18 + i;
2026 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2027 }
2028
2029 /* NOTE: We always send the SSID command even if the provided ESSID is
2030 * the same as what we currently think is set. */
2031
2032 err = ipw2100_hw_send_command(priv, &cmd);
2033 if (!err) {
2034 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2035 memcpy(priv->essid, essid, ssid_len);
2036 priv->essid_len = ssid_len;
2037 }
2038
2039 if (!batch_mode) {
2040 if (ipw2100_enable_adapter(priv))
2041 err = -EIO;
2042 }
2043
2044 return err;
2045 }
2046
2047 static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2048 {
2049 DECLARE_MAC_BUF(mac);
2050
2051 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2052 "disassociated: '%s' %s \n",
2053 escape_essid(priv->essid, priv->essid_len),
2054 print_mac(mac, priv->bssid));
2055
2056 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2057
2058 if (priv->status & STATUS_STOPPING) {
2059 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2060 return;
2061 }
2062
2063 memset(priv->bssid, 0, ETH_ALEN);
2064 memset(priv->ieee->bssid, 0, ETH_ALEN);
2065
2066 netif_carrier_off(priv->net_dev);
2067 netif_stop_queue(priv->net_dev);
2068
2069 if (!(priv->status & STATUS_RUNNING))
2070 return;
2071
2072 if (priv->status & STATUS_SECURITY_UPDATED)
2073 queue_delayed_work(priv->workqueue, &priv->security_work, 0);
2074
2075 queue_delayed_work(priv->workqueue, &priv->wx_event_work, 0);
2076 }
2077
2078 static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2079 {
2080 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2081 priv->net_dev->name);
2082
2083 /* RF_KILL is now enabled (else we wouldn't be here) */
2084 priv->status |= STATUS_RF_KILL_HW;
2085
2086 /* Make sure the RF Kill check timer is running */
2087 priv->stop_rf_kill = 0;
2088 cancel_delayed_work(&priv->rf_kill);
2089 queue_delayed_work(priv->workqueue, &priv->rf_kill,
2090 round_jiffies_relative(HZ));
2091 }
2092
2093 static void send_scan_event(void *data)
2094 {
2095 struct ipw2100_priv *priv = data;
2096 union iwreq_data wrqu;
2097
2098 wrqu.data.length = 0;
2099 wrqu.data.flags = 0;
2100 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
2101 }
2102
2103 static void ipw2100_scan_event_later(struct work_struct *work)
2104 {
2105 send_scan_event(container_of(work, struct ipw2100_priv,
2106 scan_event_later.work));
2107 }
2108
2109 static void ipw2100_scan_event_now(struct work_struct *work)
2110 {
2111 send_scan_event(container_of(work, struct ipw2100_priv,
2112 scan_event_now));
2113 }
2114
2115 static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2116 {
2117 IPW_DEBUG_SCAN("scan complete\n");
2118 /* Age the scan results... */
2119 priv->ieee->scans++;
2120 priv->status &= ~STATUS_SCANNING;
2121
2122 /* Only userspace-requested scan completion events go out immediately */
2123 if (!priv->user_requested_scan) {
2124 if (!delayed_work_pending(&priv->scan_event_later))
2125 queue_delayed_work(priv->workqueue,
2126 &priv->scan_event_later,
2127 round_jiffies_relative(msecs_to_jiffies(4000)));
2128 } else {
2129 priv->user_requested_scan = 0;
2130 cancel_delayed_work(&priv->scan_event_later);
2131 queue_work(priv->workqueue, &priv->scan_event_now);
2132 }
2133 }
2134
2135 #ifdef CONFIG_IPW2100_DEBUG
2136 #define IPW2100_HANDLER(v, f) { v, f, # v }
2137 struct ipw2100_status_indicator {
2138 int status;
2139 void (*cb) (struct ipw2100_priv * priv, u32 status);
2140 char *name;
2141 };
2142 #else
2143 #define IPW2100_HANDLER(v, f) { v, f }
2144 struct ipw2100_status_indicator {
2145 int status;
2146 void (*cb) (struct ipw2100_priv * priv, u32 status);
2147 };
2148 #endif /* CONFIG_IPW2100_DEBUG */
2149
2150 static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2151 {
2152 IPW_DEBUG_SCAN("Scanning...\n");
2153 priv->status |= STATUS_SCANNING;
2154 }
2155
2156 static const struct ipw2100_status_indicator status_handlers[] = {
2157 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2158 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2159 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2160 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2161 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2162 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2163 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2164 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2165 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2166 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2167 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2168 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2169 IPW2100_HANDLER(-1, NULL)
2170 };
2171
2172 static void isr_status_change(struct ipw2100_priv *priv, int status)
2173 {
2174 int i;
2175
2176 if (status == IPW_STATE_SCANNING &&
2177 priv->status & STATUS_ASSOCIATED &&
2178 !(priv->status & STATUS_SCANNING)) {
2179 IPW_DEBUG_INFO("Scan detected while associated, with "
2180 "no scan request. Restarting firmware.\n");
2181
2182 /* Wake up any sleeping jobs */
2183 schedule_reset(priv);
2184 }
2185
2186 for (i = 0; status_handlers[i].status != -1; i++) {
2187 if (status == status_handlers[i].status) {
2188 IPW_DEBUG_NOTIF("Status change: %s\n",
2189 status_handlers[i].name);
2190 if (status_handlers[i].cb)
2191 status_handlers[i].cb(priv, status);
2192 priv->wstats.status = status;
2193 return;
2194 }
2195 }
2196
2197 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2198 }
2199
2200 static void isr_rx_complete_command(struct ipw2100_priv *priv,
2201 struct ipw2100_cmd_header *cmd)
2202 {
2203 #ifdef CONFIG_IPW2100_DEBUG
2204 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2205 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2206 command_types[cmd->host_command_reg],
2207 cmd->host_command_reg);
2208 }
2209 #endif
2210 if (cmd->host_command_reg == HOST_COMPLETE)
2211 priv->status |= STATUS_ENABLED;
2212
2213 if (cmd->host_command_reg == CARD_DISABLE)
2214 priv->status &= ~STATUS_ENABLED;
2215
2216 priv->status &= ~STATUS_CMD_ACTIVE;
2217
2218 wake_up_interruptible(&priv->wait_command_queue);
2219 }
2220
2221 #ifdef CONFIG_IPW2100_DEBUG
2222 static const char *frame_types[] = {
2223 "COMMAND_STATUS_VAL",
2224 "STATUS_CHANGE_VAL",
2225 "P80211_DATA_VAL",
2226 "P8023_DATA_VAL",
2227 "HOST_NOTIFICATION_VAL"
2228 };
2229 #endif
2230
2231 static int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2232 struct ipw2100_rx_packet *packet)
2233 {
2234 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2235 if (!packet->skb)
2236 return -ENOMEM;
2237
2238 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2239 packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data,
2240 sizeof(struct ipw2100_rx),
2241 PCI_DMA_FROMDEVICE);
2242 /* NOTE: pci_map_single does not return an error code, and 0 is a valid
2243 * dma_addr */
2244
2245 return 0;
2246 }
2247
2248 #define SEARCH_ERROR 0xffffffff
2249 #define SEARCH_FAIL 0xfffffffe
2250 #define SEARCH_SUCCESS 0xfffffff0
2251 #define SEARCH_DISCARD 0
2252 #define SEARCH_SNAPSHOT 1
2253
2254 #define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2255 static void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2256 {
2257 int i;
2258 if (!priv->snapshot[0])
2259 return;
2260 for (i = 0; i < 0x30; i++)
2261 kfree(priv->snapshot[i]);
2262 priv->snapshot[0] = NULL;
2263 }
2264
2265 #ifdef IPW2100_DEBUG_C3
2266 static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2267 {
2268 int i;
2269 if (priv->snapshot[0])
2270 return 1;
2271 for (i = 0; i < 0x30; i++) {
2272 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
2273 if (!priv->snapshot[i]) {
2274 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2275 "buffer %d\n", priv->net_dev->name, i);
2276 while (i > 0)
2277 kfree(priv->snapshot[--i]);
2278 priv->snapshot[0] = NULL;
2279 return 0;
2280 }
2281 }
2282
2283 return 1;
2284 }
2285
2286 static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2287 size_t len, int mode)
2288 {
2289 u32 i, j;
2290 u32 tmp;
2291 u8 *s, *d;
2292 u32 ret;
2293
2294 s = in_buf;
2295 if (mode == SEARCH_SNAPSHOT) {
2296 if (!ipw2100_snapshot_alloc(priv))
2297 mode = SEARCH_DISCARD;
2298 }
2299
2300 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2301 read_nic_dword(priv->net_dev, i, &tmp);
2302 if (mode == SEARCH_SNAPSHOT)
2303 *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2304 if (ret == SEARCH_FAIL) {
2305 d = (u8 *) & tmp;
2306 for (j = 0; j < 4; j++) {
2307 if (*s != *d) {
2308 s = in_buf;
2309 continue;
2310 }
2311
2312 s++;
2313 d++;
2314
2315 if ((s - in_buf) == len)
2316 ret = (i + j) - len + 1;
2317 }
2318 } else if (mode == SEARCH_DISCARD)
2319 return ret;
2320 }
2321
2322 return ret;
2323 }
2324 #endif
2325
2326 /*
2327 *
2328 * 0) Disconnect the SKB from the firmware (just unmap)
2329 * 1) Pack the ETH header into the SKB
2330 * 2) Pass the SKB to the network stack
2331 *
2332 * When packet is provided by the firmware, it contains the following:
2333 *
2334 * . ieee80211_hdr
2335 * . ieee80211_snap_hdr
2336 *
2337 * The size of the constructed ethernet
2338 *
2339 */
2340 #ifdef IPW2100_RX_DEBUG
2341 static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2342 #endif
2343
2344 static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2345 {
2346 #ifdef IPW2100_DEBUG_C3
2347 struct ipw2100_status *status = &priv->status_queue.drv[i];
2348 u32 match, reg;
2349 int j;
2350 #endif
2351
2352 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2353 i * sizeof(struct ipw2100_status));
2354
2355 #ifdef IPW2100_DEBUG_C3
2356 /* Halt the fimrware so we can get a good image */
2357 write_register(priv->net_dev, IPW_REG_RESET_REG,
2358 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2359 j = 5;
2360 do {
2361 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2362 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
2363
2364 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2365 break;
2366 } while (j--);
2367
2368 match = ipw2100_match_buf(priv, (u8 *) status,
2369 sizeof(struct ipw2100_status),
2370 SEARCH_SNAPSHOT);
2371 if (match < SEARCH_SUCCESS)
2372 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2373 "offset 0x%06X, length %d:\n",
2374 priv->net_dev->name, match,
2375 sizeof(struct ipw2100_status));
2376 else
2377 IPW_DEBUG_INFO("%s: No DMA status match in "
2378 "Firmware.\n", priv->net_dev->name);
2379
2380 printk_buf((u8 *) priv->status_queue.drv,
2381 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2382 #endif
2383
2384 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2385 priv->ieee->stats.rx_errors++;
2386 schedule_reset(priv);
2387 }
2388
2389 static void isr_rx(struct ipw2100_priv *priv, int i,
2390 struct ieee80211_rx_stats *stats)
2391 {
2392 struct ipw2100_status *status = &priv->status_queue.drv[i];
2393 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2394
2395 IPW_DEBUG_RX("Handler...\n");
2396
2397 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2398 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2399 " Dropping.\n",
2400 priv->net_dev->name,
2401 status->frame_size, skb_tailroom(packet->skb));
2402 priv->ieee->stats.rx_errors++;
2403 return;
2404 }
2405
2406 if (unlikely(!netif_running(priv->net_dev))) {
2407 priv->ieee->stats.rx_errors++;
2408 priv->wstats.discard.misc++;
2409 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2410 return;
2411 }
2412
2413 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2414 !(priv->status & STATUS_ASSOCIATED))) {
2415 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2416 priv->wstats.discard.misc++;
2417 return;
2418 }
2419
2420 pci_unmap_single(priv->pci_dev,
2421 packet->dma_addr,
2422 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2423
2424 skb_put(packet->skb, status->frame_size);
2425
2426 #ifdef IPW2100_RX_DEBUG
2427 /* Make a copy of the frame so we can dump it to the logs if
2428 * ieee80211_rx fails */
2429 skb_copy_from_linear_data(packet->skb, packet_data,
2430 min_t(u32, status->frame_size,
2431 IPW_RX_NIC_BUFFER_LENGTH));
2432 #endif
2433
2434 if (!ieee80211_rx(priv->ieee, packet->skb, stats)) {
2435 #ifdef IPW2100_RX_DEBUG
2436 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2437 priv->net_dev->name);
2438 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2439 #endif
2440 priv->ieee->stats.rx_errors++;
2441
2442 /* ieee80211_rx failed, so it didn't free the SKB */
2443 dev_kfree_skb_any(packet->skb);
2444 packet->skb = NULL;
2445 }
2446
2447 /* We need to allocate a new SKB and attach it to the RDB. */
2448 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2449 printk(KERN_WARNING DRV_NAME ": "
2450 "%s: Unable to allocate SKB onto RBD ring - disabling "
2451 "adapter.\n", priv->net_dev->name);
2452 /* TODO: schedule adapter shutdown */
2453 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2454 }
2455
2456 /* Update the RDB entry */
2457 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2458 }
2459
2460 #ifdef CONFIG_IPW2100_MONITOR
2461
2462 static void isr_rx_monitor(struct ipw2100_priv *priv, int i,
2463 struct ieee80211_rx_stats *stats)
2464 {
2465 struct ipw2100_status *status = &priv->status_queue.drv[i];
2466 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2467
2468 /* Magic struct that slots into the radiotap header -- no reason
2469 * to build this manually element by element, we can write it much
2470 * more efficiently than we can parse it. ORDER MATTERS HERE */
2471 struct ipw_rt_hdr {
2472 struct ieee80211_radiotap_header rt_hdr;
2473 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */
2474 } *ipw_rt;
2475
2476 IPW_DEBUG_RX("Handler...\n");
2477
2478 if (unlikely(status->frame_size > skb_tailroom(packet->skb) -
2479 sizeof(struct ipw_rt_hdr))) {
2480 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2481 " Dropping.\n",
2482 priv->net_dev->name,
2483 status->frame_size,
2484 skb_tailroom(packet->skb));
2485 priv->ieee->stats.rx_errors++;
2486 return;
2487 }
2488
2489 if (unlikely(!netif_running(priv->net_dev))) {
2490 priv->ieee->stats.rx_errors++;
2491 priv->wstats.discard.misc++;
2492 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2493 return;
2494 }
2495
2496 if (unlikely(priv->config & CFG_CRC_CHECK &&
2497 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2498 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2499 priv->ieee->stats.rx_errors++;
2500 return;
2501 }
2502
2503 pci_unmap_single(priv->pci_dev, packet->dma_addr,
2504 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2505 memmove(packet->skb->data + sizeof(struct ipw_rt_hdr),
2506 packet->skb->data, status->frame_size);
2507
2508 ipw_rt = (struct ipw_rt_hdr *) packet->skb->data;
2509
2510 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
2511 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
2512 ipw_rt->rt_hdr.it_len = sizeof(struct ipw_rt_hdr); /* total hdr+data */
2513
2514 ipw_rt->rt_hdr.it_present = 1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL;
2515
2516 ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM;
2517
2518 skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr));
2519
2520 if (!ieee80211_rx(priv->ieee, packet->skb, stats)) {
2521 priv->ieee->stats.rx_errors++;
2522
2523 /* ieee80211_rx failed, so it didn't free the SKB */
2524 dev_kfree_skb_any(packet->skb);
2525 packet->skb = NULL;
2526 }
2527
2528 /* We need to allocate a new SKB and attach it to the RDB. */
2529 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2530 IPW_DEBUG_WARNING(
2531 "%s: Unable to allocate SKB onto RBD ring - disabling "
2532 "adapter.\n", priv->net_dev->name);
2533 /* TODO: schedule adapter shutdown */
2534 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2535 }
2536
2537 /* Update the RDB entry */
2538 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2539 }
2540
2541 #endif
2542
2543 static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2544 {
2545 struct ipw2100_status *status = &priv->status_queue.drv[i];
2546 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2547 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2548
2549 switch (frame_type) {
2550 case COMMAND_STATUS_VAL:
2551 return (status->frame_size != sizeof(u->rx_data.command));
2552 case STATUS_CHANGE_VAL:
2553 return (status->frame_size != sizeof(u->rx_data.status));
2554 case HOST_NOTIFICATION_VAL:
2555 return (status->frame_size < sizeof(u->rx_data.notification));
2556 case P80211_DATA_VAL:
2557 case P8023_DATA_VAL:
2558 #ifdef CONFIG_IPW2100_MONITOR
2559 return 0;
2560 #else
2561 switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
2562 case IEEE80211_FTYPE_MGMT:
2563 case IEEE80211_FTYPE_CTL:
2564 return 0;
2565 case IEEE80211_FTYPE_DATA:
2566 return (status->frame_size >
2567 IPW_MAX_802_11_PAYLOAD_LENGTH);
2568 }
2569 #endif
2570 }
2571
2572 return 1;
2573 }
2574
2575 /*
2576 * ipw2100 interrupts are disabled at this point, and the ISR
2577 * is the only code that calls this method. So, we do not need
2578 * to play with any locks.
2579 *
2580 * RX Queue works as follows:
2581 *
2582 * Read index - firmware places packet in entry identified by the
2583 * Read index and advances Read index. In this manner,
2584 * Read index will always point to the next packet to
2585 * be filled--but not yet valid.
2586 *
2587 * Write index - driver fills this entry with an unused RBD entry.
2588 * This entry has not filled by the firmware yet.
2589 *
2590 * In between the W and R indexes are the RBDs that have been received
2591 * but not yet processed.
2592 *
2593 * The process of handling packets will start at WRITE + 1 and advance
2594 * until it reaches the READ index.
2595 *
2596 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2597 *
2598 */
2599 static void __ipw2100_rx_process(struct ipw2100_priv *priv)
2600 {
2601 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2602 struct ipw2100_status_queue *sq = &priv->status_queue;
2603 struct ipw2100_rx_packet *packet;
2604 u16 frame_type;
2605 u32 r, w, i, s;
2606 struct ipw2100_rx *u;
2607 struct ieee80211_rx_stats stats = {
2608 .mac_time = jiffies,
2609 };
2610
2611 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2612 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2613
2614 if (r >= rxq->entries) {
2615 IPW_DEBUG_RX("exit - bad read index\n");
2616 return;
2617 }
2618
2619 i = (rxq->next + 1) % rxq->entries;
2620 s = i;
2621 while (i != r) {
2622 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2623 r, rxq->next, i); */
2624
2625 packet = &priv->rx_buffers[i];
2626
2627 /* Sync the DMA for the STATUS buffer so CPU is sure to get
2628 * the correct values */
2629 pci_dma_sync_single_for_cpu(priv->pci_dev,
2630 sq->nic +
2631 sizeof(struct ipw2100_status) * i,
2632 sizeof(struct ipw2100_status),
2633 PCI_DMA_FROMDEVICE);
2634
2635 /* Sync the DMA for the RX buffer so CPU is sure to get
2636 * the correct values */
2637 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr,
2638 sizeof(struct ipw2100_rx),
2639 PCI_DMA_FROMDEVICE);
2640
2641 if (unlikely(ipw2100_corruption_check(priv, i))) {
2642 ipw2100_corruption_detected(priv, i);
2643 goto increment;
2644 }
2645
2646 u = packet->rxp;
2647 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2648 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2649 stats.len = sq->drv[i].frame_size;
2650
2651 stats.mask = 0;
2652 if (stats.rssi != 0)
2653 stats.mask |= IEEE80211_STATMASK_RSSI;
2654 stats.freq = IEEE80211_24GHZ_BAND;
2655
2656 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2657 priv->net_dev->name, frame_types[frame_type],
2658 stats.len);
2659
2660 switch (frame_type) {
2661 case COMMAND_STATUS_VAL:
2662 /* Reset Rx watchdog */
2663 isr_rx_complete_command(priv, &u->rx_data.command);
2664 break;
2665
2666 case STATUS_CHANGE_VAL:
2667 isr_status_change(priv, u->rx_data.status);
2668 break;
2669
2670 case P80211_DATA_VAL:
2671 case P8023_DATA_VAL:
2672 #ifdef CONFIG_IPW2100_MONITOR
2673 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2674 isr_rx_monitor(priv, i, &stats);
2675 break;
2676 }
2677 #endif
2678 if (stats.len < sizeof(struct ieee80211_hdr_3addr))
2679 break;
2680 switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
2681 case IEEE80211_FTYPE_MGMT:
2682 ieee80211_rx_mgt(priv->ieee,
2683 &u->rx_data.header, &stats);
2684 break;
2685
2686 case IEEE80211_FTYPE_CTL:
2687 break;
2688
2689 case IEEE80211_FTYPE_DATA:
2690 isr_rx(priv, i, &stats);
2691 break;
2692
2693 }
2694 break;
2695 }
2696
2697 increment:
2698 /* clear status field associated with this RBD */
2699 rxq->drv[i].status.info.field = 0;
2700
2701 i = (i + 1) % rxq->entries;
2702 }
2703
2704 if (i != s) {
2705 /* backtrack one entry, wrapping to end if at 0 */
2706 rxq->next = (i ? i : rxq->entries) - 1;
2707
2708 write_register(priv->net_dev,
2709 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2710 }
2711 }
2712
2713 /*
2714 * __ipw2100_tx_process
2715 *
2716 * This routine will determine whether the next packet on
2717 * the fw_pend_list has been processed by the firmware yet.
2718 *
2719 * If not, then it does nothing and returns.
2720 *
2721 * If so, then it removes the item from the fw_pend_list, frees
2722 * any associated storage, and places the item back on the
2723 * free list of its source (either msg_free_list or tx_free_list)
2724 *
2725 * TX Queue works as follows:
2726 *
2727 * Read index - points to the next TBD that the firmware will
2728 * process. The firmware will read the data, and once
2729 * done processing, it will advance the Read index.
2730 *
2731 * Write index - driver fills this entry with an constructed TBD
2732 * entry. The Write index is not advanced until the
2733 * packet has been configured.
2734 *
2735 * In between the W and R indexes are the TBDs that have NOT been
2736 * processed. Lagging behind the R index are packets that have
2737 * been processed but have not been freed by the driver.
2738 *
2739 * In order to free old storage, an internal index will be maintained
2740 * that points to the next packet to be freed. When all used
2741 * packets have been freed, the oldest index will be the same as the
2742 * firmware's read index.
2743 *
2744 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2745 *
2746 * Because the TBD structure can not contain arbitrary data, the
2747 * driver must keep an internal queue of cached allocations such that
2748 * it can put that data back into the tx_free_list and msg_free_list
2749 * for use by future command and data packets.
2750 *
2751 */
2752 static int __ipw2100_tx_process(struct ipw2100_priv *priv)
2753 {
2754 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2755 struct ipw2100_bd *tbd;
2756 struct list_head *element;
2757 struct ipw2100_tx_packet *packet;
2758 int descriptors_used;
2759 int e, i;
2760 u32 r, w, frag_num = 0;
2761
2762 if (list_empty(&priv->fw_pend_list))
2763 return 0;
2764
2765 element = priv->fw_pend_list.next;
2766
2767 packet = list_entry(element, struct ipw2100_tx_packet, list);
2768 tbd = &txq->drv[packet->index];
2769
2770 /* Determine how many TBD entries must be finished... */
2771 switch (packet->type) {
2772 case COMMAND:
2773 /* COMMAND uses only one slot; don't advance */
2774 descriptors_used = 1;
2775 e = txq->oldest;
2776 break;
2777
2778 case DATA:
2779 /* DATA uses two slots; advance and loop position. */
2780 descriptors_used = tbd->num_fragments;
2781 frag_num = tbd->num_fragments - 1;
2782 e = txq->oldest + frag_num;
2783 e %= txq->entries;
2784 break;
2785
2786 default:
2787 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2788 priv->net_dev->name);
2789 return 0;
2790 }
2791
2792 /* if the last TBD is not done by NIC yet, then packet is
2793 * not ready to be released.
2794 *
2795 */
2796 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2797 &r);
2798 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2799 &w);
2800 if (w != txq->next)
2801 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2802 priv->net_dev->name);
2803
2804 /*
2805 * txq->next is the index of the last packet written txq->oldest is
2806 * the index of the r is the index of the next packet to be read by
2807 * firmware
2808 */
2809
2810 /*
2811 * Quick graphic to help you visualize the following
2812 * if / else statement
2813 *
2814 * ===>| s---->|===============
2815 * e>|
2816 * | a | b | c | d | e | f | g | h | i | j | k | l
2817 * r---->|
2818 * w
2819 *
2820 * w - updated by driver
2821 * r - updated by firmware
2822 * s - start of oldest BD entry (txq->oldest)
2823 * e - end of oldest BD entry
2824 *
2825 */
2826 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2827 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2828 return 0;
2829 }
2830
2831 list_del(element);
2832 DEC_STAT(&priv->fw_pend_stat);
2833
2834 #ifdef CONFIG_IPW2100_DEBUG
2835 {
2836 int i = txq->oldest;
2837 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2838 &txq->drv[i],
2839 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2840 txq->drv[i].host_addr, txq->drv[i].buf_length);
2841
2842 if (packet->type == DATA) {
2843 i = (i + 1) % txq->entries;
2844
2845 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2846 &txq->drv[i],
2847 (u32) (txq->nic + i *
2848 sizeof(struct ipw2100_bd)),
2849 (u32) txq->drv[i].host_addr,
2850 txq->drv[i].buf_length);
2851 }
2852 }
2853 #endif
2854
2855 switch (packet->type) {
2856 case DATA:
2857 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2858 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2859 "Expecting DATA TBD but pulled "
2860 "something else: ids %d=%d.\n",
2861 priv->net_dev->name, txq->oldest, packet->index);
2862
2863 /* DATA packet; we have to unmap and free the SKB */
2864 for (i = 0; i < frag_num; i++) {
2865 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2866
2867 IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2868 (packet->index + 1 + i) % txq->entries,
2869 tbd->host_addr, tbd->buf_length);
2870
2871 pci_unmap_single(priv->pci_dev,
2872 tbd->host_addr,
2873 tbd->buf_length, PCI_DMA_TODEVICE);
2874 }
2875
2876 ieee80211_txb_free(packet->info.d_struct.txb);
2877 packet->info.d_struct.txb = NULL;
2878
2879 list_add_tail(element, &priv->tx_free_list);
2880 INC_STAT(&priv->tx_free_stat);
2881
2882 /* We have a free slot in the Tx queue, so wake up the
2883 * transmit layer if it is stopped. */
2884 if (priv->status & STATUS_ASSOCIATED)
2885 netif_wake_queue(priv->net_dev);
2886
2887 /* A packet was processed by the hardware, so update the
2888 * watchdog */
2889 priv->net_dev->trans_start = jiffies;
2890
2891 break;
2892
2893 case COMMAND:
2894 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2895 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2896 "Expecting COMMAND TBD but pulled "
2897 "something else: ids %d=%d.\n",
2898 priv->net_dev->name, txq->oldest, packet->index);
2899
2900 #ifdef CONFIG_IPW2100_DEBUG
2901 if (packet->info.c_struct.cmd->host_command_reg <
2902 ARRAY_SIZE(command_types))
2903 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2904 command_types[packet->info.c_struct.cmd->
2905 host_command_reg],
2906 packet->info.c_struct.cmd->
2907 host_command_reg,
2908 packet->info.c_struct.cmd->cmd_status_reg);
2909 #endif
2910
2911 list_add_tail(element, &priv->msg_free_list);
2912 INC_STAT(&priv->msg_free_stat);
2913 break;
2914 }
2915
2916 /* advance oldest used TBD pointer to start of next entry */
2917 txq->oldest = (e + 1) % txq->entries;
2918 /* increase available TBDs number */
2919 txq->available += descriptors_used;
2920 SET_STAT(&priv->txq_stat, txq->available);
2921
2922 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2923 jiffies - packet->jiffy_start);
2924
2925 return (!list_empty(&priv->fw_pend_list));
2926 }
2927
2928 static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2929 {
2930 int i = 0;
2931
2932 while (__ipw2100_tx_process(priv) && i < 200)
2933 i++;
2934
2935 if (i == 200) {
2936 printk(KERN_WARNING DRV_NAME ": "
2937 "%s: Driver is running slow (%d iters).\n",
2938 priv->net_dev->name, i);
2939 }
2940 }
2941
2942 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2943 {
2944 struct list_head *element;
2945 struct ipw2100_tx_packet *packet;
2946 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2947 struct ipw2100_bd *tbd;
2948 int next = txq->next;
2949
2950 while (!list_empty(&priv->msg_pend_list)) {
2951 /* if there isn't enough space in TBD queue, then
2952 * don't stuff a new one in.
2953 * NOTE: 3 are needed as a command will take one,
2954 * and there is a minimum of 2 that must be
2955 * maintained between the r and w indexes
2956 */
2957 if (txq->available <= 3) {
2958 IPW_DEBUG_TX("no room in tx_queue\n");
2959 break;
2960 }
2961
2962 element = priv->msg_pend_list.next;
2963 list_del(element);
2964 DEC_STAT(&priv->msg_pend_stat);
2965
2966 packet = list_entry(element, struct ipw2100_tx_packet, list);
2967
2968 IPW_DEBUG_TX("using TBD at virt=%p, phys=%p\n",
2969 &txq->drv[txq->next],
2970 (void *)(txq->nic + txq->next *
2971 sizeof(struct ipw2100_bd)));
2972
2973 packet->index = txq->next;
2974
2975 tbd = &txq->drv[txq->next];
2976
2977 /* initialize TBD */
2978 tbd->host_addr = packet->info.c_struct.cmd_phys;
2979 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
2980 /* not marking number of fragments causes problems
2981 * with f/w debug version */
2982 tbd->num_fragments = 1;
2983 tbd->status.info.field =
2984 IPW_BD_STATUS_TX_FRAME_COMMAND |
2985 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
2986
2987 /* update TBD queue counters */
2988 txq->next++;
2989 txq->next %= txq->entries;
2990 txq->available--;
2991 DEC_STAT(&priv->txq_stat);
2992
2993 list_add_tail(element, &priv->fw_pend_list);
2994 INC_STAT(&priv->fw_pend_stat);
2995 }
2996
2997 if (txq->next != next) {
2998 /* kick off the DMA by notifying firmware the
2999 * write index has moved; make sure TBD stores are sync'd */
3000 wmb();
3001 write_register(priv->net_dev,
3002 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3003 txq->next);
3004 }
3005 }
3006
3007 /*
3008 * ipw2100_tx_send_data
3009 *
3010 */
3011 static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
3012 {
3013 struct list_head *element;
3014 struct ipw2100_tx_packet *packet;
3015 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3016 struct ipw2100_bd *tbd;
3017 int next = txq->next;
3018 int i = 0;
3019 struct ipw2100_data_header *ipw_hdr;
3020 struct ieee80211_hdr_3addr *hdr;
3021
3022 while (!list_empty(&priv->tx_pend_list)) {
3023 /* if there isn't enough space in TBD queue, then
3024 * don't stuff a new one in.
3025 * NOTE: 4 are needed as a data will take two,
3026 * and there is a minimum of 2 that must be
3027 * maintained between the r and w indexes
3028 */
3029 element = priv->tx_pend_list.next;
3030 packet = list_entry(element, struct ipw2100_tx_packet, list);
3031
3032 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
3033 IPW_MAX_BDS)) {
3034 /* TODO: Support merging buffers if more than
3035 * IPW_MAX_BDS are used */
3036 IPW_DEBUG_INFO("%s: Maximum BD theshold exceeded. "
3037 "Increase fragmentation level.\n",
3038 priv->net_dev->name);
3039 }
3040
3041 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
3042 IPW_DEBUG_TX("no room in tx_queue\n");
3043 break;
3044 }
3045
3046 list_del(element);
3047 DEC_STAT(&priv->tx_pend_stat);
3048
3049 tbd = &txq->drv[txq->next];
3050
3051 packet->index = txq->next;
3052
3053 ipw_hdr = packet->info.d_struct.data;
3054 hdr = (struct ieee80211_hdr_3addr *)packet->info.d_struct.txb->
3055 fragments[0]->data;
3056
3057 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
3058 /* To DS: Addr1 = BSSID, Addr2 = SA,
3059 Addr3 = DA */
3060 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3061 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3062 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3063 /* not From/To DS: Addr1 = DA, Addr2 = SA,
3064 Addr3 = BSSID */
3065 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3066 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3067 }
3068
3069 ipw_hdr->host_command_reg = SEND;
3070 ipw_hdr->host_command_reg1 = 0;
3071
3072 /* For now we only support host based encryption */
3073 ipw_hdr->needs_encryption = 0;
3074 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3075 if (packet->info.d_struct.txb->nr_frags > 1)
3076 ipw_hdr->fragment_size =
3077 packet->info.d_struct.txb->frag_size -
3078 IEEE80211_3ADDR_LEN;
3079 else
3080 ipw_hdr->fragment_size = 0;
3081
3082 tbd->host_addr = packet->info.d_struct.data_phys;
3083 tbd->buf_length = sizeof(struct ipw2100_data_header);
3084 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3085 tbd->status.info.field =
3086 IPW_BD_STATUS_TX_FRAME_802_3 |
3087 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3088 txq->next++;
3089 txq->next %= txq->entries;
3090
3091 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
3092 packet->index, tbd->host_addr, tbd->buf_length);
3093 #ifdef CONFIG_IPW2100_DEBUG
3094 if (packet->info.d_struct.txb->nr_frags > 1)
3095 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3096 packet->info.d_struct.txb->nr_frags);
3097 #endif
3098
3099 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3100 tbd = &txq->drv[txq->next];
3101 if (i == packet->info.d_struct.txb->nr_frags - 1)
3102 tbd->status.info.field =
3103 IPW_BD_STATUS_TX_FRAME_802_3 |
3104 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3105 else
3106 tbd->status.info.field =
3107 IPW_BD_STATUS_TX_FRAME_802_3 |
3108 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3109
3110 tbd->buf_length = packet->info.d_struct.txb->
3111 fragments[i]->len - IEEE80211_3ADDR_LEN;
3112
3113 tbd->host_addr = pci_map_single(priv->pci_dev,
3114 packet->info.d_struct.
3115 txb->fragments[i]->
3116 data +
3117 IEEE80211_3ADDR_LEN,
3118 tbd->buf_length,
3119 PCI_DMA_TODEVICE);
3120
3121 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3122 txq->next, tbd->host_addr,
3123 tbd->buf_length);
3124
3125 pci_dma_sync_single_for_device(priv->pci_dev,
3126 tbd->host_addr,
3127 tbd->buf_length,
3128 PCI_DMA_TODEVICE);
3129
3130 txq->next++;
3131 txq->next %= txq->entries;
3132 }
3133
3134 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3135 SET_STAT(&priv->txq_stat, txq->available);
3136
3137 list_add_tail(element, &priv->fw_pend_list);
3138 INC_STAT(&priv->fw_pend_stat);
3139 }
3140
3141 if (txq->next != next) {
3142 /* kick off the DMA by notifying firmware the
3143 * write index has moved; make sure TBD stores are sync'd */
3144 write_register(priv->net_dev,
3145 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3146 txq->next);
3147 }
3148 return;
3149 }
3150
3151 static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
3152 {
3153 struct net_device *dev = priv->net_dev;
3154 unsigned long flags;
3155 u32 inta, tmp;
3156
3157 spin_lock_irqsave(&priv->low_lock, flags);
3158 ipw2100_disable_interrupts(priv);
3159
3160 read_register(dev, IPW_REG_INTA, &inta);
3161
3162 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3163 (unsigned long)inta & IPW_INTERRUPT_MASK);
3164
3165 priv->in_isr++;
3166 priv->interrupts++;
3167
3168 /* We do not loop and keep polling for more interrupts as this
3169 * is frowned upon and doesn't play nicely with other potentially
3170 * chained IRQs */
3171 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3172 (unsigned long)inta & IPW_INTERRUPT_MASK);
3173
3174 if (inta & IPW2100_INTA_FATAL_ERROR) {
3175 printk(KERN_WARNING DRV_NAME
3176 ": Fatal interrupt. Scheduling firmware restart.\n");
3177 priv->inta_other++;
3178 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3179
3180 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3181 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3182 priv->net_dev->name, priv->fatal_error);
3183
3184 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3185 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3186 priv->net_dev->name, tmp);
3187
3188 /* Wake up any sleeping jobs */
3189 schedule_reset(priv);
3190 }
3191
3192 if (inta & IPW2100_INTA_PARITY_ERROR) {
3193 printk(KERN_ERR DRV_NAME
3194 ": ***** PARITY ERROR INTERRUPT !!!! \n");
3195 priv->inta_other++;
3196 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3197 }
3198
3199 if (inta & IPW2100_INTA_RX_TRANSFER) {
3200 IPW_DEBUG_ISR("RX interrupt\n");
3201
3202 priv->rx_interrupts++;
3203
3204 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3205
3206 __ipw2100_rx_process(priv);
3207 __ipw2100_tx_complete(priv);
3208 }
3209
3210 if (inta & IPW2100_INTA_TX_TRANSFER) {
3211 IPW_DEBUG_ISR("TX interrupt\n");
3212
3213 priv->tx_interrupts++;
3214
3215 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3216
3217 __ipw2100_tx_complete(priv);
3218 ipw2100_tx_send_commands(priv);
3219 ipw2100_tx_send_data(priv);
3220 }
3221
3222 if (inta & IPW2100_INTA_TX_COMPLETE) {
3223 IPW_DEBUG_ISR("TX complete\n");
3224 priv->inta_other++;
3225 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3226
3227 __ipw2100_tx_complete(priv);
3228 }
3229
3230 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3231 /* ipw2100_handle_event(dev); */
3232 priv->inta_other++;
3233 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3234 }
3235
3236 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3237 IPW_DEBUG_ISR("FW init done interrupt\n");
3238 priv->inta_other++;
3239
3240 read_register(dev, IPW_REG_INTA, &tmp);
3241 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3242 IPW2100_INTA_PARITY_ERROR)) {
3243 write_register(dev, IPW_REG_INTA,
3244 IPW2100_INTA_FATAL_ERROR |
3245 IPW2100_INTA_PARITY_ERROR);
3246 }
3247
3248 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3249 }
3250
3251 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3252 IPW_DEBUG_ISR("Status change interrupt\n");
3253 priv->inta_other++;
3254 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3255 }
3256
3257 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3258 IPW_DEBUG_ISR("slave host mode interrupt\n");
3259 priv->inta_other++;
3260 write_register(dev, IPW_REG_INTA,
3261 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3262 }
3263
3264 priv->in_isr--;
3265 ipw2100_enable_interrupts(priv);
3266
3267 spin_unlock_irqrestore(&priv->low_lock, flags);
3268
3269 IPW_DEBUG_ISR("exit\n");
3270 }
3271
3272 static irqreturn_t ipw2100_interrupt(int irq, void *data)
3273 {
3274 struct ipw2100_priv *priv = data;
3275 u32 inta, inta_mask;
3276
3277 if (!data)
3278 return IRQ_NONE;
3279
3280 spin_lock(&priv->low_lock);
3281
3282 /* We check to see if we should be ignoring interrupts before
3283 * we touch the hardware. During ucode load if we try and handle
3284 * an interrupt we can cause keyboard problems as well as cause
3285 * the ucode to fail to initialize */
3286 if (!(priv->status & STATUS_INT_ENABLED)) {
3287 /* Shared IRQ */
3288 goto none;
3289 }
3290
3291 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3292 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3293
3294 if (inta == 0xFFFFFFFF) {
3295 /* Hardware disappeared */
3296 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3297 goto none;
3298 }
3299
3300 inta &= IPW_INTERRUPT_MASK;
3301
3302 if (!(inta & inta_mask)) {
3303 /* Shared interrupt */
3304 goto none;
3305 }
3306
3307 /* We disable the hardware interrupt here just to prevent unneeded
3308 * calls to be made. We disable this again within the actual
3309 * work tasklet, so if another part of the code re-enables the
3310 * interrupt, that is fine */
3311 ipw2100_disable_interrupts(priv);
3312
3313 tasklet_schedule(&priv->irq_tasklet);
3314 spin_unlock(&priv->low_lock);
3315
3316 return IRQ_HANDLED;
3317 none:
3318 spin_unlock(&priv->low_lock);
3319 return IRQ_NONE;
3320 }
3321
3322 static int ipw2100_tx(struct ieee80211_txb *txb, struct net_device *dev,
3323 int pri)
3324 {
3325 struct ipw2100_priv *priv = ieee80211_priv(dev);
3326 struct list_head *element;
3327 struct ipw2100_tx_packet *packet;
3328 unsigned long flags;
3329
3330 spin_lock_irqsave(&priv->low_lock, flags);
3331
3332 if (!(priv->status & STATUS_ASSOCIATED)) {
3333 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3334 priv->ieee->stats.tx_carrier_errors++;
3335 netif_stop_queue(dev);
3336 goto fail_unlock;
3337 }
3338
3339 if (list_empty(&priv->tx_free_list))
3340 goto fail_unlock;
3341
3342 element = priv->tx_free_list.next;
3343 packet = list_entry(element, struct ipw2100_tx_packet, list);
3344
3345 packet->info.d_struct.txb = txb;
3346
3347 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3348 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3349
3350 packet->jiffy_start = jiffies;
3351
3352 list_del(element);
3353 DEC_STAT(&priv->tx_free_stat);
3354
3355 list_add_tail(element, &priv->tx_pend_list);
3356 INC_STAT(&priv->tx_pend_stat);
3357
3358 ipw2100_tx_send_data(priv);
3359
3360 spin_unlock_irqrestore(&priv->low_lock, flags);
3361 return 0;
3362
3363 fail_unlock:
3364 netif_stop_queue(dev);
3365 spin_unlock_irqrestore(&priv->low_lock, flags);
3366 return 1;
3367 }
3368
3369 static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3370 {
3371 int i, j, err = -EINVAL;
3372 void *v;
3373 dma_addr_t p;
3374
3375 priv->msg_buffers =
3376 (struct ipw2100_tx_packet *)kmalloc(IPW_COMMAND_POOL_SIZE *
3377 sizeof(struct
3378 ipw2100_tx_packet),
3379 GFP_KERNEL);
3380 if (!priv->msg_buffers) {
3381 printk(KERN_ERR DRV_NAME ": %s: PCI alloc failed for msg "
3382 "buffers.\n", priv->net_dev->name);
3383 return -ENOMEM;
3384 }
3385
3386 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3387 v = pci_alloc_consistent(priv->pci_dev,
3388 sizeof(struct ipw2100_cmd_header), &p);
3389 if (!v) {
3390 printk(KERN_ERR DRV_NAME ": "
3391 "%s: PCI alloc failed for msg "
3392 "buffers.\n", priv->net_dev->name);
3393 err = -ENOMEM;
3394 break;
3395 }
3396
3397 memset(v, 0, sizeof(struct ipw2100_cmd_header));
3398
3399 priv->msg_buffers[i].type = COMMAND;
3400 priv->msg_buffers[i].info.c_struct.cmd =
3401 (struct ipw2100_cmd_header *)v;
3402 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3403 }
3404
3405 if (i == IPW_COMMAND_POOL_SIZE)
3406 return 0;
3407
3408 for (j = 0; j < i; j++) {
3409 pci_free_consistent(priv->pci_dev,
3410 sizeof(struct ipw2100_cmd_header),
3411 priv->msg_buffers[j].info.c_struct.cmd,
3412 priv->msg_buffers[j].info.c_struct.
3413 cmd_phys);
3414 }
3415
3416 kfree(priv->msg_buffers);
3417 priv->msg_buffers = NULL;
3418
3419 return err;
3420 }
3421
3422 static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3423 {
3424 int i;
3425
3426 INIT_LIST_HEAD(&priv->msg_free_list);
3427 INIT_LIST_HEAD(&priv->msg_pend_list);
3428
3429 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3430 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3431 SET_STAT(&priv->msg_free_stat, i);
3432
3433 return 0;
3434 }
3435
3436 static void ipw2100_msg_free(struct ipw2100_priv *priv)
3437 {
3438 int i;
3439
3440 if (!priv->msg_buffers)
3441 return;
3442
3443 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3444 pci_free_consistent(priv->pci_dev,
3445 sizeof(struct ipw2100_cmd_header),
3446 priv->msg_buffers[i].info.c_struct.cmd,
3447 priv->msg_buffers[i].info.c_struct.
3448 cmd_phys);
3449 }
3450
3451 kfree(priv->msg_buffers);
3452 priv->msg_buffers = NULL;
3453 }
3454
3455 static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3456 char *buf)
3457 {
3458 struct pci_dev *pci_dev = container_of(d, struct pci_dev, dev);
3459 char *out = buf;
3460 int i, j;
3461 u32 val;
3462
3463 for (i = 0; i < 16; i++) {
3464 out += sprintf(out, "[%08X] ", i * 16);
3465 for (j = 0; j < 16; j += 4) {
3466 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3467 out += sprintf(out, "%08X ", val);
3468 }
3469 out += sprintf(out, "\n");
3470 }
3471
3472 return out - buf;
3473 }
3474
3475 static DEVICE_ATTR(pci, S_IRUGO, show_pci, NULL);
3476
3477 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3478 char *buf)
3479 {
3480 struct ipw2100_priv *p = d->driver_data;
3481 return sprintf(buf, "0x%08x\n", (int)p->config);
3482 }
3483
3484 static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
3485
3486 static ssize_t show_status(struct device *d, struct device_attribute *attr,
3487 char *buf)
3488 {
3489 struct ipw2100_priv *p = d->driver_data;
3490 return sprintf(buf, "0x%08x\n", (int)p->status);
3491 }
3492
3493 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
3494
3495 static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3496 char *buf)
3497 {
3498 struct ipw2100_priv *p = d->driver_data;
3499 return sprintf(buf, "0x%08x\n", (int)p->capability);
3500 }
3501
3502 static DEVICE_ATTR(capability, S_IRUGO, show_capability, NULL);
3503
3504 #define IPW2100_REG(x) { IPW_ ##x, #x }
3505 static const struct {
3506 u32 addr;
3507 const char *name;
3508 } hw_data[] = {
3509 IPW2100_REG(REG_GP_CNTRL),
3510 IPW2100_REG(REG_GPIO),
3511 IPW2100_REG(REG_INTA),
3512 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3513 #define IPW2100_NIC(x, s) { x, #x, s }
3514 static const struct {
3515 u32 addr;
3516 const char *name;
3517 size_t size;
3518 } nic_data[] = {
3519 IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3520 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3521 #define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3522 static const struct {
3523 u8 index;
3524 const char *name;
3525 const char *desc;
3526 } ord_data[] = {
3527 IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3528 IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3529 "successful Host Tx's (MSDU)"),
3530 IPW2100_ORD(STAT_TX_DIR_DATA,
3531 "successful Directed Tx's (MSDU)"),
3532 IPW2100_ORD(STAT_TX_DIR_DATA1,
3533 "successful Directed Tx's (MSDU) @ 1MB"),
3534 IPW2100_ORD(STAT_TX_DIR_DATA2,
3535 "successful Directed Tx's (MSDU) @ 2MB"),
3536 IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3537 "successful Directed Tx's (MSDU) @ 5_5MB"),
3538 IPW2100_ORD(STAT_TX_DIR_DATA11,
3539 "successful Directed Tx's (MSDU) @ 11MB"),
3540 IPW2100_ORD(STAT_TX_NODIR_DATA1,
3541 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3542 IPW2100_ORD(STAT_TX_NODIR_DATA2,
3543 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3544 IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3545 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3546 IPW2100_ORD(STAT_TX_NODIR_DATA11,
3547 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3548 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3549 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3550 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3551 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3552 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3553 IPW2100_ORD(STAT_TX_ASSN_RESP,
3554 "successful Association response Tx's"),
3555 IPW2100_ORD(STAT_TX_REASSN,
3556 "successful Reassociation Tx's"),
3557 IPW2100_ORD(STAT_TX_REASSN_RESP,
3558 "successful Reassociation response Tx's"),
3559 IPW2100_ORD(STAT_TX_PROBE,
3560 "probes successfully transmitted"),
3561 IPW2100_ORD(STAT_TX_PROBE_RESP,
3562 "probe responses successfully transmitted"),
3563 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3564 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3565 IPW2100_ORD(STAT_TX_DISASSN,
3566 "successful Disassociation TX"),
3567 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3568 IPW2100_ORD(STAT_TX_DEAUTH,
3569 "successful Deauthentication TX"),
3570 IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3571 "Total successful Tx data bytes"),
3572 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3573 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3574 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3575 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3576 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3577 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3578 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3579 "times max tries in a hop failed"),
3580 IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3581 "times disassociation failed"),
3582 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3583 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3584 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3585 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3586 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3587 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3588 IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3589 "directed packets at 5.5MB"),
3590 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3591 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3592 IPW2100_ORD(STAT_RX_NODIR_DATA1,
3593 "nondirected packets at 1MB"),
3594 IPW2100_ORD(STAT_RX_NODIR_DATA2,
3595 "nondirected packets at 2MB"),
3596 IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3597 "nondirected packets at 5.5MB"),
3598 IPW2100_ORD(STAT_RX_NODIR_DATA11,
3599 "nondirected packets at 11MB"),
3600 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3601 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3602 "Rx CTS"),
3603 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3604 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3605 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3606 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3607 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3608 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3609 IPW2100_ORD(STAT_RX_REASSN_RESP,
3610 "Reassociation response Rx's"),
3611 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3612 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3613 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3614 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3615 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3616 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3617 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3618 IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3619 "Total rx data bytes received"),
3620 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3621 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3622 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3623 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3624 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3625 IPW2100_ORD(STAT_RX_DUPLICATE1,
3626 "duplicate rx packets at 1MB"),
3627 IPW2100_ORD(STAT_RX_DUPLICATE2,
3628 "duplicate rx packets at 2MB"),
3629 IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3630 "duplicate rx packets at 5.5MB"),
3631 IPW2100_ORD(STAT_RX_DUPLICATE11,
3632 "duplicate rx packets at 11MB"),
3633 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3634 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3635 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3636 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3637 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3638 "rx frames with invalid protocol"),
3639 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3640 IPW2100_ORD(STAT_RX_NO_BUFFER,
3641 "rx frames rejected due to no buffer"),
3642 IPW2100_ORD(STAT_RX_MISSING_FRAG,
3643 "rx frames dropped due to missing fragment"),
3644 IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3645 "rx frames dropped due to non-sequential fragment"),
3646 IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3647 "rx frames dropped due to unmatched 1st frame"),
3648 IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3649 "rx frames dropped due to uncompleted frame"),
3650 IPW2100_ORD(STAT_RX_ICV_ERRORS,
3651 "ICV errors during decryption"),
3652 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3653 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3654 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3655 "poll response timeouts"),
3656 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3657 "timeouts waiting for last {broad,multi}cast pkt"),
3658 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3659 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3660 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3661 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3662 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3663 "current calculation of % missed beacons"),
3664 IPW2100_ORD(STAT_PERCENT_RETRIES,
3665 "current calculation of % missed tx retries"),
3666 IPW2100_ORD(ASSOCIATED_AP_PTR,
3667 "0 if not associated, else pointer to AP table entry"),
3668 IPW2100_ORD(AVAILABLE_AP_CNT,
3669 "AP's decsribed in the AP table"),
3670 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3671 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3672 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3673 IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3674 "failures due to response fail"),
3675 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3676 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3677 IPW2100_ORD(STAT_ROAM_INHIBIT,
3678 "times roaming was inhibited due to activity"),
3679 IPW2100_ORD(RSSI_AT_ASSN,
3680 "RSSI of associated AP at time of association"),
3681 IPW2100_ORD(STAT_ASSN_CAUSE1,
3682 "reassociation: no probe response or TX on hop"),
3683 IPW2100_ORD(STAT_ASSN_CAUSE2,
3684 "reassociation: poor tx/rx quality"),
3685 IPW2100_ORD(STAT_ASSN_CAUSE3,
3686 "reassociation: tx/rx quality (excessive AP load"),
3687 IPW2100_ORD(STAT_ASSN_CAUSE4,
3688 "reassociation: AP RSSI level"),
3689 IPW2100_ORD(STAT_ASSN_CAUSE5,
3690 "reassociations due to load leveling"),
3691 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3692 IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3693 "times authentication response failed"),
3694 IPW2100_ORD(STATION_TABLE_CNT,
3695 "entries in association table"),
3696 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3697 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3698 IPW2100_ORD(COUNTRY_CODE,
3699 "IEEE country code as recv'd from beacon"),
3700 IPW2100_ORD(COUNTRY_CHANNELS,
3701 "channels suported by country"),
3702 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3703 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3704 IPW2100_ORD(ANTENNA_DIVERSITY,
3705 "TRUE if antenna diversity is disabled"),
3706 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3707 IPW2100_ORD(OUR_FREQ,
3708 "current radio freq lower digits - channel ID"),
3709 IPW2100_ORD(RTC_TIME, "current RTC time"),
3710 IPW2100_ORD(PORT_TYPE, "operating mode"),
3711 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3712 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3713 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3714 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3715 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3716 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3717 IPW2100_ORD(CAPABILITIES,
3718 "Management frame capability field"),
3719 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3720 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3721 IPW2100_ORD(RTS_THRESHOLD,
3722 "Min packet length for RTS handshaking"),
3723 IPW2100_ORD(INT_MODE, "International mode"),
3724 IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3725 "protocol frag threshold"),
3726 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3727 "EEPROM offset in SRAM"),
3728 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3729 "EEPROM size in SRAM"),
3730 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3731 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3732 "EEPROM IBSS 11b channel set"),
3733 IPW2100_ORD(MAC_VERSION, "MAC Version"),
3734 IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3735 IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3736 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3737 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3738
3739 static ssize_t show_registers(struct device *d, struct device_attribute *attr,
3740 char *buf)
3741 {
3742 int i;
3743 struct ipw2100_priv *priv = dev_get_drvdata(d);
3744 struct net_device *dev = priv->net_dev;
3745 char *out = buf;
3746 u32 val = 0;
3747
3748 out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3749
3750 for (i = 0; i < ARRAY_SIZE(hw_data); i++) {
3751 read_register(dev, hw_data[i].addr, &val);
3752 out += sprintf(out, "%30s [%08X] : %08X\n",
3753 hw_data[i].name, hw_data[i].addr, val);
3754 }
3755
3756 return out - buf;
3757 }
3758
3759 static DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL);
3760
3761 static ssize_t show_hardware(struct device *d, struct device_attribute *attr,
3762 char *buf)
3763 {
3764 struct ipw2100_priv *priv = dev_get_drvdata(d);
3765 struct net_device *dev = priv->net_dev;
3766 char *out = buf;
3767 int i;
3768
3769 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3770
3771 for (i = 0; i < ARRAY_SIZE(nic_data); i++) {
3772 u8 tmp8;
3773 u16 tmp16;
3774 u32 tmp32;
3775
3776 switch (nic_data[i].size) {
3777 case 1:
3778 read_nic_byte(dev, nic_data[i].addr, &tmp8);
3779 out += sprintf(out, "%30s [%08X] : %02X\n",
3780 nic_data[i].name, nic_data[i].addr,
3781 tmp8);
3782 break;
3783 case 2:
3784 read_nic_word(dev, nic_data[i].addr, &tmp16);
3785 out += sprintf(out, "%30s [%08X] : %04X\n",
3786 nic_data[i].name, nic_data[i].addr,
3787 tmp16);
3788 break;
3789 case 4:
3790 read_nic_dword(dev, nic_data[i].addr, &tmp32);
3791 out += sprintf(out, "%30s [%08X] : %08X\n",
3792 nic_data[i].name, nic_data[i].addr,
3793 tmp32);
3794 break;
3795 }
3796 }
3797 return out - buf;
3798 }
3799
3800 static DEVICE_ATTR(hardware, S_IRUGO, show_hardware, NULL);
3801
3802 static ssize_t show_memory(struct device *d, struct device_attribute *attr,
3803 char *buf)
3804 {
3805 struct ipw2100_priv *priv = dev_get_drvdata(d);
3806 struct net_device *dev = priv->net_dev;
3807 static unsigned long loop = 0;
3808 int len = 0;
3809 u32 buffer[4];
3810 int i;
3811 char line[81];
3812
3813 if (loop >= 0x30000)
3814 loop = 0;
3815
3816 /* sysfs provides us PAGE_SIZE buffer */
3817 while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3818
3819 if (priv->snapshot[0])
3820 for (i = 0; i < 4; i++)
3821 buffer[i] =
3822 *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3823 else
3824 for (i = 0; i < 4; i++)
3825 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3826
3827 if (priv->dump_raw)
3828 len += sprintf(buf + len,
3829 "%c%c%c%c"
3830 "%c%c%c%c"
3831 "%c%c%c%c"
3832 "%c%c%c%c",
3833 ((u8 *) buffer)[0x0],
3834 ((u8 *) buffer)[0x1],
3835 ((u8 *) buffer)[0x2],
3836 ((u8 *) buffer)[0x3],
3837 ((u8 *) buffer)[0x4],
3838 ((u8 *) buffer)[0x5],
3839 ((u8 *) buffer)[0x6],
3840 ((u8 *) buffer)[0x7],
3841 ((u8 *) buffer)[0x8],
3842 ((u8 *) buffer)[0x9],
3843 ((u8 *) buffer)[0xa],
3844 ((u8 *) buffer)[0xb],
3845 ((u8 *) buffer)[0xc],
3846 ((u8 *) buffer)[0xd],
3847 ((u8 *) buffer)[0xe],
3848 ((u8 *) buffer)[0xf]);
3849 else
3850 len += sprintf(buf + len, "%s\n",
3851 snprint_line(line, sizeof(line),
3852 (u8 *) buffer, 16, loop));
3853 loop += 16;
3854 }
3855
3856 return len;
3857 }
3858
3859 static ssize_t store_memory(struct device *d, struct device_attribute *attr,
3860 const char *buf, size_t count)
3861 {
3862 struct ipw2100_priv *priv = dev_get_drvdata(d);
3863 struct net_device *dev = priv->net_dev;
3864 const char *p = buf;
3865
3866 (void)dev; /* kill unused-var warning for debug-only code */
3867
3868 if (count < 1)
3869 return count;
3870
3871 if (p[0] == '1' ||
3872 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3873 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3874 dev->name);
3875 priv->dump_raw = 1;
3876
3877 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3878 tolower(p[1]) == 'f')) {
3879 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3880 dev->name);
3881 priv->dump_raw = 0;
3882
3883 } else if (tolower(p[0]) == 'r') {
3884 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3885 ipw2100_snapshot_free(priv);
3886
3887 } else
3888 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3889 "reset = clear memory snapshot\n", dev->name);
3890
3891 return count;
3892 }
3893
3894 static DEVICE_ATTR(memory, S_IWUSR | S_IRUGO, show_memory, store_memory);
3895
3896 static ssize_t show_ordinals(struct device *d, struct device_attribute *attr,
3897 char *buf)
3898 {
3899 struct ipw2100_priv *priv = dev_get_drvdata(d);
3900 u32 val = 0;
3901 int len = 0;
3902 u32 val_len;
3903 static int loop = 0;
3904
3905 if (priv->status & STATUS_RF_KILL_MASK)
3906 return 0;
3907
3908 if (loop >= ARRAY_SIZE(ord_data))
3909 loop = 0;
3910
3911 /* sysfs provides us PAGE_SIZE buffer */
3912 while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) {
3913 val_len = sizeof(u32);
3914
3915 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3916 &val_len))
3917 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n",
3918 ord_data[loop].index,
3919 ord_data[loop].desc);
3920 else
3921 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3922 ord_data[loop].index, val,
3923 ord_data[loop].desc);
3924 loop++;
3925 }
3926
3927 return len;
3928 }
3929
3930 static DEVICE_ATTR(ordinals, S_IRUGO, show_ordinals, NULL);
3931
3932 static ssize_t show_stats(struct device *d, struct device_attribute *attr,
3933 char *buf)
3934 {
3935 struct ipw2100_priv *priv = dev_get_drvdata(d);
3936 char *out = buf;
3937
3938 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3939 priv->interrupts, priv->tx_interrupts,
3940 priv->rx_interrupts, priv->inta_other);
3941 out += sprintf(out, "firmware resets: %d\n", priv->resets);
3942 out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3943 #ifdef CONFIG_IPW2100_DEBUG
3944 out += sprintf(out, "packet mismatch image: %s\n",
3945 priv->snapshot[0] ? "YES" : "NO");
3946 #endif
3947
3948 return out - buf;
3949 }
3950
3951 static DEVICE_ATTR(stats, S_IRUGO, show_stats, NULL);
3952
3953 static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
3954 {
3955 int err;
3956
3957 if (mode == priv->ieee->iw_mode)
3958 return 0;
3959
3960 err = ipw2100_disable_adapter(priv);
3961 if (err) {
3962 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
3963 priv->net_dev->name, err);
3964 return err;
3965 }
3966
3967 switch (mode) {
3968 case IW_MODE_INFRA:
3969 priv->net_dev->type = ARPHRD_ETHER;
3970 break;
3971 case IW_MODE_ADHOC:
3972 priv->net_dev->type = ARPHRD_ETHER;
3973 break;
3974 #ifdef CONFIG_IPW2100_MONITOR
3975 case IW_MODE_MONITOR:
3976 priv->last_mode = priv->ieee->iw_mode;
3977 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
3978 break;
3979 #endif /* CONFIG_IPW2100_MONITOR */
3980 }
3981
3982 priv->ieee->iw_mode = mode;
3983
3984 #ifdef CONFIG_PM
3985 /* Indicate ipw2100_download_firmware download firmware
3986 * from disk instead of memory. */
3987 ipw2100_firmware.version = 0;
3988 #endif
3989
3990 printk(KERN_INFO "%s: Reseting on mode change.\n", priv->net_dev->name);
3991 priv->reset_backoff = 0;
3992 schedule_reset(priv);
3993
3994 return 0;
3995 }
3996
3997 static ssize_t show_internals(struct device *d, struct device_attribute *attr,
3998 char *buf)
3999 {
4000 struct ipw2100_priv *priv = dev_get_drvdata(d);
4001 int len = 0;
4002
4003 #define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
4004
4005 if (priv->status & STATUS_ASSOCIATED)
4006 len += sprintf(buf + len, "connected: %lu\n",
4007 get_seconds() - priv->connect_start);
4008 else
4009 len += sprintf(buf + len, "not connected\n");
4010
4011 DUMP_VAR(ieee->crypt[priv->ieee->tx_keyidx], "p");
4012 DUMP_VAR(status, "08lx");
4013 DUMP_VAR(config, "08lx");
4014 DUMP_VAR(capability, "08lx");
4015
4016 len +=
4017 sprintf(buf + len, "last_rtc: %lu\n",
4018 (unsigned long)priv->last_rtc);
4019
4020 DUMP_VAR(fatal_error, "d");
4021 DUMP_VAR(stop_hang_check, "d");
4022 DUMP_VAR(stop_rf_kill, "d");
4023 DUMP_VAR(messages_sent, "d");
4024
4025 DUMP_VAR(tx_pend_stat.value, "d");
4026 DUMP_VAR(tx_pend_stat.hi, "d");
4027
4028 DUMP_VAR(tx_free_stat.value, "d");
4029 DUMP_VAR(tx_free_stat.lo, "d");
4030
4031 DUMP_VAR(msg_free_stat.value, "d");
4032 DUMP_VAR(msg_free_stat.lo, "d");
4033
4034 DUMP_VAR(msg_pend_stat.value, "d");
4035 DUMP_VAR(msg_pend_stat.hi, "d");
4036
4037 DUMP_VAR(fw_pend_stat.value, "d");
4038 DUMP_VAR(fw_pend_stat.hi, "d");
4039
4040 DUMP_VAR(txq_stat.value, "d");
4041 DUMP_VAR(txq_stat.lo, "d");
4042
4043 DUMP_VAR(ieee->scans, "d");
4044 DUMP_VAR(reset_backoff, "d");
4045
4046 return len;
4047 }
4048
4049 static DEVICE_ATTR(internals, S_IRUGO, show_internals, NULL);
4050
4051 static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr,
4052 char *buf)
4053 {
4054 struct ipw2100_priv *priv = dev_get_drvdata(d);
4055 char essid[IW_ESSID_MAX_SIZE + 1];
4056 u8 bssid[ETH_ALEN];
4057 u32 chan = 0;
4058 char *out = buf;
4059 int length;
4060 int ret;
4061 DECLARE_MAC_BUF(mac);
4062
4063 if (priv->status & STATUS_RF_KILL_MASK)
4064 return 0;
4065
4066 memset(essid, 0, sizeof(essid));
4067 memset(bssid, 0, sizeof(bssid));
4068
4069 length = IW_ESSID_MAX_SIZE;
4070 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
4071 if (ret)
4072 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4073 __LINE__);
4074
4075 length = sizeof(bssid);
4076 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
4077 bssid, &length);
4078 if (ret)
4079 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4080 __LINE__);
4081
4082 length = sizeof(u32);
4083 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
4084 if (ret)
4085 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4086 __LINE__);
4087
4088 out += sprintf(out, "ESSID: %s\n", essid);
4089 out += sprintf(out, "BSSID: %s\n", print_mac(mac, bssid));
4090 out += sprintf(out, "Channel: %d\n", chan);
4091
4092 return out - buf;
4093 }
4094
4095 static DEVICE_ATTR(bssinfo, S_IRUGO, show_bssinfo, NULL);
4096
4097 #ifdef CONFIG_IPW2100_DEBUG
4098 static ssize_t show_debug_level(struct device_driver *d, char *buf)
4099 {
4100 return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
4101 }
4102
4103 static ssize_t store_debug_level(struct device_driver *d,
4104 const char *buf, size_t count)
4105 {
4106 char *p = (char *)buf;
4107 u32 val;
4108
4109 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
4110 p++;
4111 if (p[0] == 'x' || p[0] == 'X')
4112 p++;
4113 val = simple_strtoul(p, &p, 16);
4114 } else
4115 val = simple_strtoul(p, &p, 10);
4116 if (p == buf)
4117 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4118 else
4119 ipw2100_debug_level = val;
4120
4121 return strnlen(buf, count);
4122 }
4123
4124 static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, show_debug_level,
4125 store_debug_level);
4126 #endif /* CONFIG_IPW2100_DEBUG */
4127
4128 static ssize_t show_fatal_error(struct device *d,
4129 struct device_attribute *attr, char *buf)
4130 {
4131 struct ipw2100_priv *priv = dev_get_drvdata(d);
4132 char *out = buf;
4133 int i;
4134
4135 if (priv->fatal_error)
4136 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4137 else
4138 out += sprintf(out, "0\n");
4139
4140 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4141 if (!priv->fatal_errors[(priv->fatal_index - i) %
4142 IPW2100_ERROR_QUEUE])
4143 continue;
4144
4145 out += sprintf(out, "%d. 0x%08X\n", i,
4146 priv->fatal_errors[(priv->fatal_index - i) %
4147 IPW2100_ERROR_QUEUE]);
4148 }
4149
4150 return out - buf;
4151 }
4152
4153 static ssize_t store_fatal_error(struct device *d,
4154 struct device_attribute *attr, const char *buf,
4155 size_t count)
4156 {
4157 struct ipw2100_priv *priv = dev_get_drvdata(d);
4158 schedule_reset(priv);
4159 return count;
4160 }
4161
4162 static DEVICE_ATTR(fatal_error, S_IWUSR | S_IRUGO, show_fatal_error,
4163 store_fatal_error);
4164
4165 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
4166 char *buf)
4167 {
4168 struct ipw2100_priv *priv = dev_get_drvdata(d);
4169 return sprintf(buf, "%d\n", priv->ieee->scan_age);
4170 }
4171
4172 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
4173 const char *buf, size_t count)
4174 {
4175 struct ipw2100_priv *priv = dev_get_drvdata(d);
4176 struct net_device *dev = priv->net_dev;
4177 char buffer[] = "00000000";
4178 unsigned long len =
4179 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
4180 unsigned long val;
4181 char *p = buffer;
4182
4183 (void)dev; /* kill unused-var warning for debug-only code */
4184
4185 IPW_DEBUG_INFO("enter\n");
4186
4187 strncpy(buffer, buf, len);
4188 buffer[len] = 0;
4189
4190 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
4191 p++;
4192 if (p[0] == 'x' || p[0] == 'X')
4193 p++;
4194 val = simple_strtoul(p, &p, 16);
4195 } else
4196 val = simple_strtoul(p, &p, 10);
4197 if (p == buffer) {
4198 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4199 } else {
4200 priv->ieee->scan_age = val;
4201 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4202 }
4203
4204 IPW_DEBUG_INFO("exit\n");
4205 return len;
4206 }
4207
4208 static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
4209
4210 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
4211 char *buf)
4212 {
4213 /* 0 - RF kill not enabled
4214 1 - SW based RF kill active (sysfs)
4215 2 - HW based RF kill active
4216 3 - Both HW and SW baed RF kill active */
4217 struct ipw2100_priv *priv = (struct ipw2100_priv *)d->driver_data;
4218 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4219 (rf_kill_active(priv) ? 0x2 : 0x0);
4220 return sprintf(buf, "%i\n", val);
4221 }
4222
4223 static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4224 {
4225 if ((disable_radio ? 1 : 0) ==
4226 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4227 return 0;
4228
4229 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
4230 disable_radio ? "OFF" : "ON");
4231
4232 mutex_lock(&priv->action_mutex);
4233
4234 if (disable_radio) {
4235 priv->status |= STATUS_RF_KILL_SW;
4236 ipw2100_down(priv);
4237 } else {
4238 priv->status &= ~STATUS_RF_KILL_SW;
4239 if (rf_kill_active(priv)) {
4240 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4241 "disabled by HW switch\n");
4242 /* Make sure the RF_KILL check timer is running */
4243 priv->stop_rf_kill = 0;
4244 cancel_delayed_work(&priv->rf_kill);
4245 queue_delayed_work(priv->workqueue, &priv->rf_kill,
4246 round_jiffies_relative(HZ));
4247 } else
4248 schedule_reset(priv);
4249 }
4250
4251 mutex_unlock(&priv->action_mutex);
4252 return 1;
4253 }
4254
4255 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
4256 const char *buf, size_t count)
4257 {
4258 struct ipw2100_priv *priv = dev_get_drvdata(d);
4259 ipw_radio_kill_sw(priv, buf[0] == '1');
4260 return count;
4261 }
4262
4263 static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
4264
4265 static struct attribute *ipw2100_sysfs_entries[] = {
4266 &dev_attr_hardware.attr,
4267 &dev_attr_registers.attr,
4268 &dev_attr_ordinals.attr,
4269 &dev_attr_pci.attr,
4270 &dev_attr_stats.attr,
4271 &dev_attr_internals.attr,
4272 &dev_attr_bssinfo.attr,
4273 &dev_attr_memory.attr,
4274 &dev_attr_scan_age.attr,
4275 &dev_attr_fatal_error.attr,
4276 &dev_attr_rf_kill.attr,
4277 &dev_attr_cfg.attr,
4278 &dev_attr_status.attr,
4279 &dev_attr_capability.attr,
4280 NULL,
4281 };
4282
4283 static struct attribute_group ipw2100_attribute_group = {
4284 .attrs = ipw2100_sysfs_entries,
4285 };
4286
4287 static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4288 {
4289 struct ipw2100_status_queue *q = &priv->status_queue;
4290
4291 IPW_DEBUG_INFO("enter\n");
4292
4293 q->size = entries * sizeof(struct ipw2100_status);
4294 q->drv =
4295 (struct ipw2100_status *)pci_alloc_consistent(priv->pci_dev,
4296 q->size, &q->nic);
4297 if (!q->drv) {
4298 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4299 return -ENOMEM;
4300 }
4301
4302 memset(q->drv, 0, q->size);
4303
4304 IPW_DEBUG_INFO("exit\n");
4305
4306 return 0;
4307 }
4308
4309 static void status_queue_free(struct ipw2100_priv *priv)
4310 {
4311 IPW_DEBUG_INFO("enter\n");
4312
4313 if (priv->status_queue.drv) {
4314 pci_free_consistent(priv->pci_dev, priv->status_queue.size,
4315 priv->status_queue.drv,
4316 priv->status_queue.nic);
4317 priv->status_queue.drv = NULL;
4318 }
4319
4320 IPW_DEBUG_INFO("exit\n");
4321 }
4322
4323 static int bd_queue_allocate(struct ipw2100_priv *priv,
4324 struct ipw2100_bd_queue *q, int entries)
4325 {
4326 IPW_DEBUG_INFO("enter\n");
4327
4328 memset(q, 0, sizeof(struct ipw2100_bd_queue));
4329
4330 q->entries = entries;
4331 q->size = entries * sizeof(struct ipw2100_bd);
4332 q->drv = pci_alloc_consistent(priv->pci_dev, q->size, &q->nic);
4333 if (!q->drv) {
4334 IPW_DEBUG_INFO
4335 ("can't allocate shared memory for buffer descriptors\n");
4336 return -ENOMEM;
4337 }
4338 memset(q->drv, 0, q->size);
4339
4340 IPW_DEBUG_INFO("exit\n");
4341
4342 return 0;
4343 }
4344
4345 static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4346 {
4347 IPW_DEBUG_INFO("enter\n");
4348
4349 if (!q)
4350 return;
4351
4352 if (q->drv) {
4353 pci_free_consistent(priv->pci_dev, q->size, q->drv, q->nic);
4354 q->drv = NULL;
4355 }
4356
4357 IPW_DEBUG_INFO("exit\n");
4358 }
4359
4360 static void bd_queue_initialize(struct ipw2100_priv *priv,
4361 struct ipw2100_bd_queue *q, u32 base, u32 size,
4362 u32 r, u32 w)
4363 {
4364 IPW_DEBUG_INFO("enter\n");
4365
4366 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4367 (u32) q->nic);
4368
4369 write_register(priv->net_dev, base, q->nic);
4370 write_register(priv->net_dev, size, q->entries);
4371 write_register(priv->net_dev, r, q->oldest);
4372 write_register(priv->net_dev, w, q->next);
4373
4374 IPW_DEBUG_INFO("exit\n");
4375 }
4376
4377 static void ipw2100_kill_workqueue(struct ipw2100_priv *priv)
4378 {
4379 if (priv->workqueue) {
4380 priv->stop_rf_kill = 1;
4381 priv->stop_hang_check = 1;
4382 cancel_delayed_work(&priv->reset_work);
4383 cancel_delayed_work(&priv->security_work);
4384 cancel_delayed_work(&priv->wx_event_work);
4385 cancel_delayed_work(&priv->hang_check);
4386 cancel_delayed_work(&priv->rf_kill);
4387 cancel_delayed_work(&priv->scan_event_later);
4388 destroy_workqueue(priv->workqueue);
4389 priv->workqueue = NULL;
4390 }
4391 }
4392
4393 static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4394 {
4395 int i, j, err = -EINVAL;
4396 void *v;
4397 dma_addr_t p;
4398
4399 IPW_DEBUG_INFO("enter\n");
4400
4401 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4402 if (err) {
4403 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4404 priv->net_dev->name);
4405 return err;
4406 }
4407
4408 priv->tx_buffers =
4409 (struct ipw2100_tx_packet *)kmalloc(TX_PENDED_QUEUE_LENGTH *
4410 sizeof(struct
4411 ipw2100_tx_packet),
4412 GFP_ATOMIC);
4413 if (!priv->tx_buffers) {
4414 printk(KERN_ERR DRV_NAME
4415 ": %s: alloc failed form tx buffers.\n",
4416 priv->net_dev->name);
4417 bd_queue_free(priv, &priv->tx_queue);
4418 return -ENOMEM;
4419 }
4420
4421 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4422 v = pci_alloc_consistent(priv->pci_dev,
4423 sizeof(struct ipw2100_data_header),
4424 &p);
4425 if (!v) {
4426 printk(KERN_ERR DRV_NAME
4427 ": %s: PCI alloc failed for tx " "buffers.\n",
4428 priv->net_dev->name);
4429 err = -ENOMEM;
4430 break;
4431 }
4432
4433 priv->tx_buffers[i].type = DATA;
4434 priv->tx_buffers[i].info.d_struct.data =
4435 (struct ipw2100_data_header *)v;
4436 priv->tx_buffers[i].info.d_struct.data_phys = p;
4437 priv->tx_buffers[i].info.d_struct.txb = NULL;
4438 }
4439
4440 if (i == TX_PENDED_QUEUE_LENGTH)
4441 return 0;
4442
4443 for (j = 0; j < i; j++) {
4444 pci_free_consistent(priv->pci_dev,
4445 sizeof(struct ipw2100_data_header),
4446 priv->tx_buffers[j].info.d_struct.data,
4447 priv->tx_buffers[j].info.d_struct.
4448 data_phys);
4449 }
4450
4451 kfree(priv->tx_buffers);
4452 priv->tx_buffers = NULL;
4453
4454 return err;
4455 }
4456
4457 static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4458 {
4459 int i;
4460
4461 IPW_DEBUG_INFO("enter\n");
4462
4463 /*
4464 * reinitialize packet info lists
4465 */
4466 INIT_LIST_HEAD(&priv->fw_pend_list);
4467 INIT_STAT(&priv->fw_pend_stat);
4468
4469 /*
4470 * reinitialize lists
4471 */
4472 INIT_LIST_HEAD(&priv->tx_pend_list);
4473 INIT_LIST_HEAD(&priv->tx_free_list);
4474 INIT_STAT(&priv->tx_pend_stat);
4475 INIT_STAT(&priv->tx_free_stat);
4476
4477 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4478 /* We simply drop any SKBs that have been queued for
4479 * transmit */
4480 if (priv->tx_buffers[i].info.d_struct.txb) {
4481 ieee80211_txb_free(priv->tx_buffers[i].info.d_struct.
4482 txb);
4483 priv->tx_buffers[i].info.d_struct.txb = NULL;
4484 }
4485
4486 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4487 }
4488
4489 SET_STAT(&priv->tx_free_stat, i);
4490
4491 priv->tx_queue.oldest = 0;
4492 priv->tx_queue.available = priv->tx_queue.entries;
4493 priv->tx_queue.next = 0;
4494 INIT_STAT(&priv->txq_stat);
4495 SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4496
4497 bd_queue_initialize(priv, &priv->tx_queue,
4498 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4499 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4500 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4501 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4502
4503 IPW_DEBUG_INFO("exit\n");
4504
4505 }
4506
4507 static void ipw2100_tx_free(struct ipw2100_priv *priv)
4508 {
4509 int i;
4510
4511 IPW_DEBUG_INFO("enter\n");
4512
4513 bd_queue_free(priv, &priv->tx_queue);
4514
4515 if (!priv->tx_buffers)
4516 return;
4517
4518 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4519 if (priv->tx_buffers[i].info.d_struct.txb) {
4520 ieee80211_txb_free(priv->tx_buffers[i].info.d_struct.
4521 txb);
4522 priv->tx_buffers[i].info.d_struct.txb = NULL;
4523 }
4524 if (priv->tx_buffers[i].info.d_struct.data)
4525 pci_free_consistent(priv->pci_dev,
4526 sizeof(struct ipw2100_data_header),
4527 priv->tx_buffers[i].info.d_struct.
4528 data,
4529 priv->tx_buffers[i].info.d_struct.
4530 data_phys);
4531 }
4532
4533 kfree(priv->tx_buffers);
4534 priv->tx_buffers = NULL;
4535
4536 IPW_DEBUG_INFO("exit\n");
4537 }
4538
4539 static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4540 {
4541 int i, j, err = -EINVAL;
4542
4543 IPW_DEBUG_INFO("enter\n");
4544
4545 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4546 if (err) {
4547 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4548 return err;
4549 }
4550
4551 err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4552 if (err) {
4553 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4554 bd_queue_free(priv, &priv->rx_queue);
4555 return err;
4556 }
4557
4558 /*
4559 * allocate packets
4560 */
4561 priv->rx_buffers = (struct ipw2100_rx_packet *)
4562 kmalloc(RX_QUEUE_LENGTH * sizeof(struct ipw2100_rx_packet),
4563 GFP_KERNEL);
4564 if (!priv->rx_buffers) {
4565 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4566
4567 bd_queue_free(priv, &priv->rx_queue);
4568
4569 status_queue_free(priv);
4570
4571 return -ENOMEM;
4572 }
4573
4574 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4575 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4576
4577 err = ipw2100_alloc_skb(priv, packet);
4578 if (unlikely(err)) {
4579 err = -ENOMEM;
4580 break;
4581 }
4582
4583 /* The BD holds the cache aligned address */
4584 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4585 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4586 priv->status_queue.drv[i].status_fields = 0;
4587 }
4588
4589 if (i == RX_QUEUE_LENGTH)
4590 return 0;
4591
4592 for (j = 0; j < i; j++) {
4593 pci_unmap_single(priv->pci_dev, priv->rx_buffers[j].dma_addr,
4594 sizeof(struct ipw2100_rx_packet),
4595 PCI_DMA_FROMDEVICE);
4596 dev_kfree_skb(priv->rx_buffers[j].skb);
4597 }
4598
4599 kfree(priv->rx_buffers);
4600 priv->rx_buffers = NULL;
4601
4602 bd_queue_free(priv, &priv->rx_queue);
4603
4604 status_queue_free(priv);
4605
4606 return err;
4607 }
4608
4609 static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4610 {
4611 IPW_DEBUG_INFO("enter\n");
4612
4613 priv->rx_queue.oldest = 0;
4614 priv->rx_queue.available = priv->rx_queue.entries - 1;
4615 priv->rx_queue.next = priv->rx_queue.entries - 1;
4616
4617 INIT_STAT(&priv->rxq_stat);
4618 SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4619
4620 bd_queue_initialize(priv, &priv->rx_queue,
4621 IPW_MEM_HOST_SHARED_RX_BD_BASE,
4622 IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4623 IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4624 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4625
4626 /* set up the status queue */
4627 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4628 priv->status_queue.nic);
4629
4630 IPW_DEBUG_INFO("exit\n");
4631 }
4632
4633 static void ipw2100_rx_free(struct ipw2100_priv *priv)
4634 {
4635 int i;
4636
4637 IPW_DEBUG_INFO("enter\n");
4638
4639 bd_queue_free(priv, &priv->rx_queue);
4640 status_queue_free(priv);
4641
4642 if (!priv->rx_buffers)
4643 return;
4644
4645 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4646 if (priv->rx_buffers[i].rxp) {
4647 pci_unmap_single(priv->pci_dev,
4648 priv->rx_buffers[i].dma_addr,
4649 sizeof(struct ipw2100_rx),
4650 PCI_DMA_FROMDEVICE);
4651 dev_kfree_skb(priv->rx_buffers[i].skb);
4652 }
4653 }
4654
4655 kfree(priv->rx_buffers);
4656 priv->rx_buffers = NULL;
4657
4658 IPW_DEBUG_INFO("exit\n");
4659 }
4660
4661 static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4662 {
4663 u32 length = ETH_ALEN;
4664 u8 addr[ETH_ALEN];
4665 DECLARE_MAC_BUF(mac);
4666
4667 int err;
4668
4669 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length);
4670 if (err) {
4671 IPW_DEBUG_INFO("MAC address read failed\n");
4672 return -EIO;
4673 }
4674
4675 memcpy(priv->net_dev->dev_addr, addr, ETH_ALEN);
4676 IPW_DEBUG_INFO("card MAC is %s\n",
4677 print_mac(mac, priv->net_dev->dev_addr));
4678
4679 return 0;
4680 }
4681
4682 /********************************************************************
4683 *
4684 * Firmware Commands
4685 *
4686 ********************************************************************/
4687
4688 static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4689 {
4690 struct host_command cmd = {
4691 .host_command = ADAPTER_ADDRESS,
4692 .host_command_sequence = 0,
4693 .host_command_length = ETH_ALEN
4694 };
4695 int err;
4696
4697 IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4698
4699 IPW_DEBUG_INFO("enter\n");
4700
4701 if (priv->config & CFG_CUSTOM_MAC) {
4702 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4703 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
4704 } else
4705 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4706 ETH_ALEN);
4707
4708 err = ipw2100_hw_send_command(priv, &cmd);
4709
4710 IPW_DEBUG_INFO("exit\n");
4711 return err;
4712 }
4713
4714 static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4715 int batch_mode)
4716 {
4717 struct host_command cmd = {
4718 .host_command = PORT_TYPE,
4719 .host_command_sequence = 0,
4720 .host_command_length = sizeof(u32)
4721 };
4722 int err;
4723
4724 switch (port_type) {
4725 case IW_MODE_INFRA:
4726 cmd.host_command_parameters[0] = IPW_BSS;
4727 break;
4728 case IW_MODE_ADHOC:
4729 cmd.host_command_parameters[0] = IPW_IBSS;
4730 break;
4731 }
4732
4733 IPW_DEBUG_HC("PORT_TYPE: %s\n",
4734 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4735
4736 if (!batch_mode) {
4737 err = ipw2100_disable_adapter(priv);
4738 if (err) {
4739 printk(KERN_ERR DRV_NAME
4740 ": %s: Could not disable adapter %d\n",
4741 priv->net_dev->name, err);
4742 return err;
4743 }
4744 }
4745
4746 /* send cmd to firmware */
4747 err = ipw2100_hw_send_command(priv, &cmd);
4748
4749 if (!batch_mode)
4750 ipw2100_enable_adapter(priv);
4751
4752 return err;
4753 }
4754
4755 static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4756 int batch_mode)
4757 {
4758 struct host_command cmd = {
4759 .host_command = CHANNEL,
4760 .host_command_sequence = 0,
4761 .host_command_length = sizeof(u32)
4762 };
4763 int err;
4764
4765 cmd.host_command_parameters[0] = channel;
4766
4767 IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4768
4769 /* If BSS then we don't support channel selection */
4770 if (priv->ieee->iw_mode == IW_MODE_INFRA)
4771 return 0;
4772
4773 if ((channel != 0) &&
4774 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4775 return -EINVAL;
4776
4777 if (!batch_mode) {
4778 err = ipw2100_disable_adapter(priv);
4779 if (err)
4780 return err;
4781 }
4782
4783 err = ipw2100_hw_send_command(priv, &cmd);
4784 if (err) {
4785 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4786 return err;
4787 }
4788
4789 if (channel)
4790 priv->config |= CFG_STATIC_CHANNEL;
4791 else
4792 priv->config &= ~CFG_STATIC_CHANNEL;
4793
4794 priv->channel = channel;
4795
4796 if (!batch_mode) {
4797 err = ipw2100_enable_adapter(priv);
4798 if (err)
4799 return err;
4800 }
4801
4802 return 0;
4803 }
4804
4805 static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4806 {
4807 struct host_command cmd = {
4808 .host_command = SYSTEM_CONFIG,
4809 .host_command_sequence = 0,
4810 .host_command_length = 12,
4811 };
4812 u32 ibss_mask, len = sizeof(u32);
4813 int err;
4814
4815 /* Set system configuration */
4816
4817 if (!batch_mode) {
4818 err = ipw2100_disable_adapter(priv);
4819 if (err)
4820 return err;
4821 }
4822
4823 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4824 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4825
4826 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4827 IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4828
4829 if (!(priv->config & CFG_LONG_PREAMBLE))
4830 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4831
4832 err = ipw2100_get_ordinal(priv,
4833 IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4834 &ibss_mask, &len);
4835 if (err)
4836 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4837
4838 cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4839 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4840
4841 /* 11b only */
4842 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4843
4844 err = ipw2100_hw_send_command(priv, &cmd);
4845 if (err)
4846 return err;
4847
4848 /* If IPv6 is configured in the kernel then we don't want to filter out all
4849 * of the multicast packets as IPv6 needs some. */
4850 #if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4851 cmd.host_command = ADD_MULTICAST;
4852 cmd.host_command_sequence = 0;
4853 cmd.host_command_length = 0;
4854
4855 ipw2100_hw_send_command(priv, &cmd);
4856 #endif
4857 if (!batch_mode) {
4858 err = ipw2100_enable_adapter(priv);
4859 if (err)
4860 return err;
4861 }
4862
4863 return 0;
4864 }
4865
4866 static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4867 int batch_mode)
4868 {
4869 struct host_command cmd = {
4870 .host_command = BASIC_TX_RATES,
4871 .host_command_sequence = 0,
4872 .host_command_length = 4
4873 };
4874 int err;
4875
4876 cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4877
4878 if (!batch_mode) {
4879 err = ipw2100_disable_adapter(priv);
4880 if (err)
4881 return err;
4882 }
4883
4884 /* Set BASIC TX Rate first */
4885 ipw2100_hw_send_command(priv, &cmd);
4886
4887 /* Set TX Rate */
4888 cmd.host_command = TX_RATES;
4889 ipw2100_hw_send_command(priv, &cmd);
4890
4891 /* Set MSDU TX Rate */
4892 cmd.host_command = MSDU_TX_RATES;
4893 ipw2100_hw_send_command(priv, &cmd);
4894
4895 if (!batch_mode) {
4896 err = ipw2100_enable_adapter(priv);
4897 if (err)
4898 return err;
4899 }
4900
4901 priv->tx_rates = rate;
4902
4903 return 0;
4904 }
4905
4906 static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4907 {
4908 struct host_command cmd = {
4909 .host_command = POWER_MODE,
4910 .host_command_sequence = 0,
4911 .host_command_length = 4
4912 };
4913 int err;
4914
4915 cmd.host_command_parameters[0] = power_level;
4916
4917 err = ipw2100_hw_send_command(priv, &cmd);
4918 if (err)
4919 return err;
4920
4921 if (power_level == IPW_POWER_MODE_CAM)
4922 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4923 else
4924 priv->power_mode = IPW_POWER_ENABLED | power_level;
4925
4926 #ifdef IPW2100_TX_POWER
4927 if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4928 /* Set beacon interval */
4929 cmd.host_command = TX_POWER_INDEX;
4930 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4931
4932 err = ipw2100_hw_send_command(priv, &cmd);
4933 if (err)
4934 return err;
4935 }
4936 #endif
4937
4938 return 0;
4939 }
4940
4941 static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4942 {
4943 struct host_command cmd = {
4944 .host_command = RTS_THRESHOLD,
4945 .host_command_sequence = 0,
4946 .host_command_length = 4
4947 };
4948 int err;
4949
4950 if (threshold & RTS_DISABLED)
4951 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4952 else
4953 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4954
4955 err = ipw2100_hw_send_command(priv, &cmd);
4956 if (err)
4957 return err;
4958
4959 priv->rts_threshold = threshold;
4960
4961 return 0;
4962 }
4963
4964 #if 0
4965 int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4966 u32 threshold, int batch_mode)
4967 {
4968 struct host_command cmd = {
4969 .host_command = FRAG_THRESHOLD,
4970 .host_command_sequence = 0,
4971 .host_command_length = 4,
4972 .host_command_parameters[0] = 0,
4973 };
4974 int err;
4975
4976 if (!batch_mode) {
4977 err = ipw2100_disable_adapter(priv);
4978 if (err)
4979 return err;
4980 }
4981
4982 if (threshold == 0)
4983 threshold = DEFAULT_FRAG_THRESHOLD;
4984 else {
4985 threshold = max(threshold, MIN_FRAG_THRESHOLD);
4986 threshold = min(threshold, MAX_FRAG_THRESHOLD);
4987 }
4988
4989 cmd.host_command_parameters[0] = threshold;
4990
4991 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
4992
4993 err = ipw2100_hw_send_command(priv, &cmd);
4994
4995 if (!batch_mode)
4996 ipw2100_enable_adapter(priv);
4997
4998 if (!err)
4999 priv->frag_threshold = threshold;
5000
5001 return err;
5002 }
5003 #endif
5004
5005 static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
5006 {
5007 struct host_command cmd = {
5008 .host_command = SHORT_RETRY_LIMIT,
5009 .host_command_sequence = 0,
5010 .host_command_length = 4
5011 };
5012 int err;
5013
5014 cmd.host_command_parameters[0] = retry;
5015
5016 err = ipw2100_hw_send_command(priv, &cmd);
5017 if (err)
5018 return err;
5019
5020 priv->short_retry_limit = retry;
5021
5022 return 0;
5023 }
5024
5025 static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
5026 {
5027 struct host_command cmd = {
5028 .host_command = LONG_RETRY_LIMIT,
5029 .host_command_sequence = 0,
5030 .host_command_length = 4
5031 };
5032 int err;
5033
5034 cmd.host_command_parameters[0] = retry;
5035
5036 err = ipw2100_hw_send_command(priv, &cmd);
5037 if (err)
5038 return err;
5039
5040 priv->long_retry_limit = retry;
5041
5042 return 0;
5043 }
5044
5045 static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
5046 int batch_mode)
5047 {
5048 struct host_command cmd = {
5049 .host_command = MANDATORY_BSSID,
5050 .host_command_sequence = 0,
5051 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
5052 };
5053 int err;
5054
5055 #ifdef CONFIG_IPW2100_DEBUG
5056 DECLARE_MAC_BUF(mac);
5057 if (bssid != NULL)
5058 IPW_DEBUG_HC("MANDATORY_BSSID: %s\n",
5059 print_mac(mac, bssid));
5060 else
5061 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
5062 #endif
5063 /* if BSSID is empty then we disable mandatory bssid mode */
5064 if (bssid != NULL)
5065 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
5066
5067 if (!batch_mode) {
5068 err = ipw2100_disable_adapter(priv);
5069 if (err)
5070 return err;
5071 }
5072
5073 err = ipw2100_hw_send_command(priv, &cmd);
5074
5075 if (!batch_mode)
5076 ipw2100_enable_adapter(priv);
5077
5078 return err;
5079 }
5080
5081 static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
5082 {
5083 struct host_command cmd = {
5084 .host_command = DISASSOCIATION_BSSID,
5085 .host_command_sequence = 0,
5086 .host_command_length = ETH_ALEN
5087 };
5088 int err;
5089 int len;
5090
5091 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
5092
5093 len = ETH_ALEN;
5094 /* The Firmware currently ignores the BSSID and just disassociates from
5095 * the currently associated AP -- but in the off chance that a future
5096 * firmware does use the BSSID provided here, we go ahead and try and
5097 * set it to the currently associated AP's BSSID */
5098 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
5099
5100 err = ipw2100_hw_send_command(priv, &cmd);
5101
5102 return err;
5103 }
5104
5105 static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
5106 struct ipw2100_wpa_assoc_frame *, int)
5107 __attribute__ ((unused));
5108
5109 static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
5110 struct ipw2100_wpa_assoc_frame *wpa_frame,
5111 int batch_mode)
5112 {
5113 struct host_command cmd = {
5114 .host_command = SET_WPA_IE,
5115 .host_command_sequence = 0,
5116 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
5117 };
5118 int err;
5119
5120 IPW_DEBUG_HC("SET_WPA_IE\n");
5121
5122 if (!batch_mode) {
5123 err = ipw2100_disable_adapter(priv);
5124 if (err)
5125 return err;
5126 }
5127
5128 memcpy(cmd.host_command_parameters, wpa_frame,
5129 sizeof(struct ipw2100_wpa_assoc_frame));
5130
5131 err = ipw2100_hw_send_command(priv, &cmd);
5132
5133 if (!batch_mode) {
5134 if (ipw2100_enable_adapter(priv))
5135 err = -EIO;
5136 }
5137
5138 return err;
5139 }
5140
5141 struct security_info_params {
5142 u32 allowed_ciphers;
5143 u16 version;
5144 u8 auth_mode;
5145 u8 replay_counters_number;
5146 u8 unicast_using_group;
5147 } __attribute__ ((packed));
5148
5149 static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5150 int auth_mode,
5151 int security_level,
5152 int unicast_using_group,
5153 int batch_mode)
5154 {
5155 struct host_command cmd = {
5156 .host_command = SET_SECURITY_INFORMATION,
5157 .host_command_sequence = 0,
5158 .host_command_length = sizeof(struct security_info_params)
5159 };
5160 struct security_info_params *security =
5161 (struct security_info_params *)&cmd.host_command_parameters;
5162 int err;
5163 memset(security, 0, sizeof(*security));
5164
5165 /* If shared key AP authentication is turned on, then we need to
5166 * configure the firmware to try and use it.
5167 *
5168 * Actual data encryption/decryption is handled by the host. */
5169 security->auth_mode = auth_mode;
5170 security->unicast_using_group = unicast_using_group;
5171
5172 switch (security_level) {
5173 default:
5174 case SEC_LEVEL_0:
5175 security->allowed_ciphers = IPW_NONE_CIPHER;
5176 break;
5177 case SEC_LEVEL_1:
5178 security->allowed_ciphers = IPW_WEP40_CIPHER |
5179 IPW_WEP104_CIPHER;
5180 break;
5181 case SEC_LEVEL_2:
5182 security->allowed_ciphers = IPW_WEP40_CIPHER |
5183 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5184 break;
5185 case SEC_LEVEL_2_CKIP:
5186 security->allowed_ciphers = IPW_WEP40_CIPHER |
5187 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5188 break;
5189 case SEC_LEVEL_3:
5190 security->allowed_ciphers = IPW_WEP40_CIPHER |
5191 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5192 break;
5193 }
5194
5195 IPW_DEBUG_HC
5196 ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5197 security->auth_mode, security->allowed_ciphers, security_level);
5198
5199 security->replay_counters_number = 0;
5200
5201 if (!batch_mode) {
5202 err = ipw2100_disable_adapter(priv);
5203 if (err)
5204 return err;
5205 }
5206
5207 err = ipw2100_hw_send_command(priv, &cmd);
5208
5209 if (!batch_mode)
5210 ipw2100_enable_adapter(priv);
5211
5212 return err;
5213 }
5214
5215 static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5216 {
5217 struct host_command cmd = {
5218 .host_command = TX_POWER_INDEX,
5219 .host_command_sequence = 0,
5220 .host_command_length = 4
5221 };
5222 int err = 0;
5223 u32 tmp = tx_power;
5224
5225 if (tx_power != IPW_TX_POWER_DEFAULT)
5226 tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 /
5227 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
5228
5229 cmd.host_command_parameters[0] = tmp;
5230
5231 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5232 err = ipw2100_hw_send_command(priv, &cmd);
5233 if (!err)
5234 priv->tx_power = tx_power;
5235
5236 return 0;
5237 }
5238
5239 static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5240 u32 interval, int batch_mode)
5241 {
5242 struct host_command cmd = {
5243 .host_command = BEACON_INTERVAL,
5244 .host_command_sequence = 0,
5245 .host_command_length = 4
5246 };
5247 int err;
5248
5249 cmd.host_command_parameters[0] = interval;
5250
5251 IPW_DEBUG_INFO("enter\n");
5252
5253 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5254 if (!batch_mode) {
5255 err = ipw2100_disable_adapter(priv);
5256 if (err)
5257 return err;
5258 }
5259
5260 ipw2100_hw_send_command(priv, &cmd);
5261
5262 if (!batch_mode) {
5263 err = ipw2100_enable_adapter(priv);
5264 if (err)
5265 return err;
5266 }
5267 }
5268
5269 IPW_DEBUG_INFO("exit\n");
5270
5271 return 0;
5272 }
5273
5274 void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5275 {
5276 ipw2100_tx_initialize(priv);
5277 ipw2100_rx_initialize(priv);
5278 ipw2100_msg_initialize(priv);
5279 }
5280
5281 void ipw2100_queues_free(struct ipw2100_priv *priv)
5282 {
5283 ipw2100_tx_free(priv);
5284 ipw2100_rx_free(priv);
5285 ipw2100_msg_free(priv);
5286 }
5287
5288 int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5289 {
5290 if (ipw2100_tx_allocate(priv) ||
5291 ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5292 goto fail;
5293
5294 return 0;
5295
5296 fail:
5297 ipw2100_tx_free(priv);
5298 ipw2100_rx_free(priv);
5299 ipw2100_msg_free(priv);
5300 return -ENOMEM;
5301 }
5302
5303 #define IPW_PRIVACY_CAPABLE 0x0008
5304
5305 static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5306 int batch_mode)
5307 {
5308 struct host_command cmd = {
5309 .host_command = WEP_FLAGS,
5310 .host_command_sequence = 0,
5311 .host_command_length = 4
5312 };
5313 int err;
5314
5315 cmd.host_command_parameters[0] = flags;
5316
5317 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5318
5319 if (!batch_mode) {
5320 err = ipw2100_disable_adapter(priv);
5321 if (err) {
5322 printk(KERN_ERR DRV_NAME
5323 ": %s: Could not disable adapter %d\n",
5324 priv->net_dev->name, err);
5325 return err;
5326 }
5327 }
5328
5329 /* send cmd to firmware */
5330 err = ipw2100_hw_send_command(priv, &cmd);
5331
5332 if (!batch_mode)
5333 ipw2100_enable_adapter(priv);
5334
5335 return err;
5336 }
5337
5338 struct ipw2100_wep_key {
5339 u8 idx;
5340 u8 len;
5341 u8 key[13];
5342 };
5343
5344 /* Macros to ease up priting WEP keys */
5345 #define WEP_FMT_64 "%02X%02X%02X%02X-%02X"
5346 #define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5347 #define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5348 #define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10]
5349
5350 /**
5351 * Set a the wep key
5352 *
5353 * @priv: struct to work on
5354 * @idx: index of the key we want to set
5355 * @key: ptr to the key data to set
5356 * @len: length of the buffer at @key
5357 * @batch_mode: FIXME perform the operation in batch mode, not
5358 * disabling the device.
5359 *
5360 * @returns 0 if OK, < 0 errno code on error.
5361 *
5362 * Fill out a command structure with the new wep key, length an
5363 * index and send it down the wire.
5364 */
5365 static int ipw2100_set_key(struct ipw2100_priv *priv,
5366 int idx, char *key, int len, int batch_mode)
5367 {
5368 int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5369 struct host_command cmd = {
5370 .host_command = WEP_KEY_INFO,
5371 .host_command_sequence = 0,
5372 .host_command_length = sizeof(struct ipw2100_wep_key),
5373 };
5374 struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5375 int err;
5376
5377 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5378 idx, keylen, len);
5379
5380 /* NOTE: We don't check cached values in case the firmware was reset
5381 * or some other problem is occurring. If the user is setting the key,
5382 * then we push the change */
5383
5384 wep_key->idx = idx;
5385 wep_key->len = keylen;
5386
5387 if (keylen) {
5388 memcpy(wep_key->key, key, len);
5389 memset(wep_key->key + len, 0, keylen - len);
5390 }
5391
5392 /* Will be optimized out on debug not being configured in */
5393 if (keylen == 0)
5394 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5395 priv->net_dev->name, wep_key->idx);
5396 else if (keylen == 5)
5397 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5398 priv->net_dev->name, wep_key->idx, wep_key->len,
5399 WEP_STR_64(wep_key->key));
5400 else
5401 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5402 "\n",
5403 priv->net_dev->name, wep_key->idx, wep_key->len,
5404 WEP_STR_128(wep_key->key));
5405
5406 if (!batch_mode) {
5407 err = ipw2100_disable_adapter(priv);
5408 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5409 if (err) {
5410 printk(KERN_ERR DRV_NAME
5411 ": %s: Could not disable adapter %d\n",
5412 priv->net_dev->name, err);
5413 return err;
5414 }
5415 }
5416
5417 /* send cmd to firmware */
5418 err = ipw2100_hw_send_command(priv, &cmd);
5419
5420 if (!batch_mode) {
5421 int err2 = ipw2100_enable_adapter(priv);
5422 if (err == 0)
5423 err = err2;
5424 }
5425 return err;
5426 }
5427
5428 static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5429 int idx, int batch_mode)
5430 {
5431 struct host_command cmd = {
5432 .host_command = WEP_KEY_INDEX,
5433 .host_command_sequence = 0,
5434 .host_command_length = 4,
5435 .host_command_parameters = {idx},
5436 };
5437 int err;
5438
5439 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5440
5441 if (idx < 0 || idx > 3)
5442 return -EINVAL;
5443
5444 if (!batch_mode) {
5445 err = ipw2100_disable_adapter(priv);
5446 if (err) {
5447 printk(KERN_ERR DRV_NAME
5448 ": %s: Could not disable adapter %d\n",
5449 priv->net_dev->name, err);
5450 return err;
5451 }
5452 }
5453
5454 /* send cmd to firmware */
5455 err = ipw2100_hw_send_command(priv, &cmd);
5456
5457 if (!batch_mode)
5458 ipw2100_enable_adapter(priv);
5459
5460 return err;
5461 }
5462
5463 static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5464 {
5465 int i, err, auth_mode, sec_level, use_group;
5466
5467 if (!(priv->status & STATUS_RUNNING))
5468 return 0;
5469
5470 if (!batch_mode) {
5471 err = ipw2100_disable_adapter(priv);
5472 if (err)
5473 return err;
5474 }
5475
5476 if (!priv->ieee->sec.enabled) {
5477 err =
5478 ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5479 SEC_LEVEL_0, 0, 1);
5480 } else {
5481 auth_mode = IPW_AUTH_OPEN;
5482 if (priv->ieee->sec.flags & SEC_AUTH_MODE) {
5483 if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)
5484 auth_mode = IPW_AUTH_SHARED;
5485 else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)
5486 auth_mode = IPW_AUTH_LEAP_CISCO_ID;
5487 }
5488
5489 sec_level = SEC_LEVEL_0;
5490 if (priv->ieee->sec.flags & SEC_LEVEL)
5491 sec_level = priv->ieee->sec.level;
5492
5493 use_group = 0;
5494 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5495 use_group = priv->ieee->sec.unicast_uses_group;
5496
5497 err =
5498 ipw2100_set_security_information(priv, auth_mode, sec_level,
5499 use_group, 1);
5500 }
5501
5502 if (err)
5503 goto exit;
5504
5505 if (priv->ieee->sec.enabled) {
5506 for (i = 0; i < 4; i++) {
5507 if (!(priv->ieee->sec.flags & (1 << i))) {
5508 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5509 priv->ieee->sec.key_sizes[i] = 0;
5510 } else {
5511 err = ipw2100_set_key(priv, i,
5512 priv->ieee->sec.keys[i],
5513 priv->ieee->sec.
5514 key_sizes[i], 1);
5515 if (err)
5516 goto exit;
5517 }
5518 }
5519
5520 ipw2100_set_key_index(priv, priv->ieee->tx_keyidx, 1);
5521 }
5522
5523 /* Always enable privacy so the Host can filter WEP packets if
5524 * encrypted data is sent up */
5525 err =
5526 ipw2100_set_wep_flags(priv,
5527 priv->ieee->sec.
5528 enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5529 if (err)
5530 goto exit;
5531
5532 priv->status &= ~STATUS_SECURITY_UPDATED;
5533
5534 exit:
5535 if (!batch_mode)
5536 ipw2100_enable_adapter(priv);
5537
5538 return err;
5539 }
5540
5541 static void ipw2100_security_work(struct work_struct *work)
5542 {
5543 struct ipw2100_priv *priv =
5544 container_of(work, struct ipw2100_priv, security_work.work);
5545
5546 /* If we happen to have reconnected before we get a chance to
5547 * process this, then update the security settings--which causes
5548 * a disassociation to occur */
5549 if (!(priv->status & STATUS_ASSOCIATED) &&
5550 priv->status & STATUS_SECURITY_UPDATED)
5551 ipw2100_configure_security(priv, 0);
5552 }
5553
5554 static void shim__set_security(struct net_device *dev,
5555 struct ieee80211_security *sec)
5556 {
5557 struct ipw2100_priv *priv = ieee80211_priv(dev);
5558 int i, force_update = 0;
5559
5560 mutex_lock(&priv->action_mutex);
5561 if (!(priv->status & STATUS_INITIALIZED))
5562 goto done;
5563
5564 for (i = 0; i < 4; i++) {
5565 if (sec->flags & (1 << i)) {
5566 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5567 if (sec->key_sizes[i] == 0)
5568 priv->ieee->sec.flags &= ~(1 << i);
5569 else
5570 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5571 sec->key_sizes[i]);
5572 if (sec->level == SEC_LEVEL_1) {
5573 priv->ieee->sec.flags |= (1 << i);
5574 priv->status |= STATUS_SECURITY_UPDATED;
5575 } else
5576 priv->ieee->sec.flags &= ~(1 << i);
5577 }
5578 }
5579
5580 if ((sec->flags & SEC_ACTIVE_KEY) &&
5581 priv->ieee->sec.active_key != sec->active_key) {
5582 if (sec->active_key <= 3) {
5583 priv->ieee->sec.active_key = sec->active_key;
5584 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5585 } else
5586 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
5587
5588 priv->status |= STATUS_SECURITY_UPDATED;
5589 }
5590
5591 if ((sec->flags & SEC_AUTH_MODE) &&
5592 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5593 priv->ieee->sec.auth_mode = sec->auth_mode;
5594 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5595 priv->status |= STATUS_SECURITY_UPDATED;
5596 }
5597
5598 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5599 priv->ieee->sec.flags |= SEC_ENABLED;
5600 priv->ieee->sec.enabled = sec->enabled;
5601 priv->status |= STATUS_SECURITY_UPDATED;
5602 force_update = 1;
5603 }
5604
5605 if (sec->flags & SEC_ENCRYPT)
5606 priv->ieee->sec.encrypt = sec->encrypt;
5607
5608 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5609 priv->ieee->sec.level = sec->level;
5610 priv->ieee->sec.flags |= SEC_LEVEL;
5611 priv->status |= STATUS_SECURITY_UPDATED;
5612 }
5613
5614 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5615 priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5616 priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5617 priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5618 priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5619 priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5620 priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5621 priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5622 priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5623 priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5624
5625 /* As a temporary work around to enable WPA until we figure out why
5626 * wpa_supplicant toggles the security capability of the driver, which
5627 * forces a disassocation with force_update...
5628 *
5629 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5630 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5631 ipw2100_configure_security(priv, 0);
5632 done:
5633 mutex_unlock(&priv->action_mutex);
5634 }
5635
5636 static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5637 {
5638 int err;
5639 int batch_mode = 1;
5640 u8 *bssid;
5641
5642 IPW_DEBUG_INFO("enter\n");
5643
5644 err = ipw2100_disable_adapter(priv);
5645 if (err)
5646 return err;
5647 #ifdef CONFIG_IPW2100_MONITOR
5648 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5649 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5650 if (err)
5651 return err;
5652
5653 IPW_DEBUG_INFO("exit\n");
5654
5655 return 0;
5656 }
5657 #endif /* CONFIG_IPW2100_MONITOR */
5658
5659 err = ipw2100_read_mac_address(priv);
5660 if (err)
5661 return -EIO;
5662
5663 err = ipw2100_set_mac_address(priv, batch_mode);
5664 if (err)
5665 return err;
5666
5667 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5668 if (err)
5669 return err;
5670
5671 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5672 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5673 if (err)
5674 return err;
5675 }
5676
5677 err = ipw2100_system_config(priv, batch_mode);
5678 if (err)
5679 return err;
5680
5681 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5682 if (err)
5683 return err;
5684
5685 /* Default to power mode OFF */
5686 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5687 if (err)
5688 return err;
5689
5690 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5691 if (err)
5692 return err;
5693
5694 if (priv->config & CFG_STATIC_BSSID)
5695 bssid = priv->bssid;
5696 else
5697 bssid = NULL;
5698 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5699 if (err)
5700 return err;
5701
5702 if (priv->config & CFG_STATIC_ESSID)
5703 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5704 batch_mode);
5705 else
5706 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5707 if (err)
5708 return err;
5709
5710 err = ipw2100_configure_security(priv, batch_mode);
5711 if (err)
5712 return err;
5713
5714 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5715 err =
5716 ipw2100_set_ibss_beacon_interval(priv,
5717 priv->beacon_interval,
5718 batch_mode);
5719 if (err)
5720 return err;
5721
5722 err = ipw2100_set_tx_power(priv, priv->tx_power);
5723 if (err)
5724 return err;
5725 }
5726
5727 /*
5728 err = ipw2100_set_fragmentation_threshold(
5729 priv, priv->frag_threshold, batch_mode);
5730 if (err)
5731 return err;
5732 */
5733
5734 IPW_DEBUG_INFO("exit\n");
5735
5736 return 0;
5737 }
5738
5739 /*************************************************************************
5740 *
5741 * EXTERNALLY CALLED METHODS
5742 *
5743 *************************************************************************/
5744
5745 /* This method is called by the network layer -- not to be confused with
5746 * ipw2100_set_mac_address() declared above called by this driver (and this
5747 * method as well) to talk to the firmware */
5748 static int ipw2100_set_address(struct net_device *dev, void *p)
5749 {
5750 struct ipw2100_priv *priv = ieee80211_priv(dev);
5751 struct sockaddr *addr = p;
5752 int err = 0;
5753
5754 if (!is_valid_ether_addr(addr->sa_data))
5755 return -EADDRNOTAVAIL;
5756
5757 mutex_lock(&priv->action_mutex);
5758
5759 priv->config |= CFG_CUSTOM_MAC;
5760 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5761
5762 err = ipw2100_set_mac_address(priv, 0);
5763 if (err)
5764 goto done;
5765
5766 priv->reset_backoff = 0;
5767 mutex_unlock(&priv->action_mutex);
5768 ipw2100_reset_adapter(&priv->reset_work.work);
5769 return 0;
5770
5771 done:
5772 mutex_unlock(&priv->action_mutex);
5773 return err;
5774 }
5775
5776 static int ipw2100_open(struct net_device *dev)
5777 {
5778 struct ipw2100_priv *priv = ieee80211_priv(dev);
5779 unsigned long flags;
5780 IPW_DEBUG_INFO("dev->open\n");
5781
5782 spin_lock_irqsave(&priv->low_lock, flags);
5783 if (priv->status & STATUS_ASSOCIATED) {
5784 netif_carrier_on(dev);
5785 netif_start_queue(dev);
5786 }
5787 spin_unlock_irqrestore(&priv->low_lock, flags);
5788
5789 return 0;
5790 }
5791
5792 static int ipw2100_close(struct net_device *dev)
5793 {
5794 struct ipw2100_priv *priv = ieee80211_priv(dev);
5795 unsigned long flags;
5796 struct list_head *element;
5797 struct ipw2100_tx_packet *packet;
5798
5799 IPW_DEBUG_INFO("enter\n");
5800
5801 spin_lock_irqsave(&priv->low_lock, flags);
5802
5803 if (priv->status & STATUS_ASSOCIATED)
5804 netif_carrier_off(dev);
5805 netif_stop_queue(dev);
5806
5807 /* Flush the TX queue ... */
5808 while (!list_empty(&priv->tx_pend_list)) {
5809 element = priv->tx_pend_list.next;
5810 packet = list_entry(element, struct ipw2100_tx_packet, list);
5811
5812 list_del(element);
5813 DEC_STAT(&priv->tx_pend_stat);
5814
5815 ieee80211_txb_free(packet->info.d_struct.txb);
5816 packet->info.d_struct.txb = NULL;
5817
5818 list_add_tail(element, &priv->tx_free_list);
5819 INC_STAT(&priv->tx_free_stat);
5820 }
5821 spin_unlock_irqrestore(&priv->low_lock, flags);
5822
5823 IPW_DEBUG_INFO("exit\n");
5824
5825 return 0;
5826 }
5827
5828 /*
5829 * TODO: Fix this function... its just wrong
5830 */
5831 static void ipw2100_tx_timeout(struct net_device *dev)
5832 {
5833 struct ipw2100_priv *priv = ieee80211_priv(dev);
5834
5835 priv->ieee->stats.tx_errors++;
5836
5837 #ifdef CONFIG_IPW2100_MONITOR
5838 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5839 return;
5840 #endif
5841
5842 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n",
5843 dev->name);
5844 schedule_reset(priv);
5845 }
5846
5847 static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5848 {
5849 /* This is called when wpa_supplicant loads and closes the driver
5850 * interface. */
5851 priv->ieee->wpa_enabled = value;
5852 return 0;
5853 }
5854
5855 static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5856 {
5857
5858 struct ieee80211_device *ieee = priv->ieee;
5859 struct ieee80211_security sec = {
5860 .flags = SEC_AUTH_MODE,
5861 };
5862 int ret = 0;
5863
5864 if (value & IW_AUTH_ALG_SHARED_KEY) {
5865 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5866 ieee->open_wep = 0;
5867 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5868 sec.auth_mode = WLAN_AUTH_OPEN;
5869 ieee->open_wep = 1;
5870 } else if (value & IW_AUTH_ALG_LEAP) {
5871 sec.auth_mode = WLAN_AUTH_LEAP;
5872 ieee->open_wep = 1;
5873 } else
5874 return -EINVAL;
5875
5876 if (ieee->set_security)
5877 ieee->set_security(ieee->dev, &sec);
5878 else
5879 ret = -EOPNOTSUPP;
5880
5881 return ret;
5882 }
5883
5884 static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5885 char *wpa_ie, int wpa_ie_len)
5886 {
5887
5888 struct ipw2100_wpa_assoc_frame frame;
5889
5890 frame.fixed_ie_mask = 0;
5891
5892 /* copy WPA IE */
5893 memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5894 frame.var_ie_len = wpa_ie_len;
5895
5896 /* make sure WPA is enabled */
5897 ipw2100_wpa_enable(priv, 1);
5898 ipw2100_set_wpa_ie(priv, &frame, 0);
5899 }
5900
5901 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
5902 struct ethtool_drvinfo *info)
5903 {
5904 struct ipw2100_priv *priv = ieee80211_priv(dev);
5905 char fw_ver[64], ucode_ver[64];
5906
5907 strcpy(info->driver, DRV_NAME);
5908 strcpy(info->version, DRV_VERSION);
5909
5910 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
5911 ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
5912
5913 snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
5914 fw_ver, priv->eeprom_version, ucode_ver);
5915
5916 strcpy(info->bus_info, pci_name(priv->pci_dev));
5917 }
5918
5919 static u32 ipw2100_ethtool_get_link(struct net_device *dev)
5920 {
5921 struct ipw2100_priv *priv = ieee80211_priv(dev);
5922 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
5923 }
5924
5925 static const struct ethtool_ops ipw2100_ethtool_ops = {
5926 .get_link = ipw2100_ethtool_get_link,
5927 .get_drvinfo = ipw_ethtool_get_drvinfo,
5928 };
5929
5930 static void ipw2100_hang_check(struct work_struct *work)
5931 {
5932 struct ipw2100_priv *priv =
5933 container_of(work, struct ipw2100_priv, hang_check.work);
5934 unsigned long flags;
5935 u32 rtc = 0xa5a5a5a5;
5936 u32 len = sizeof(rtc);
5937 int restart = 0;
5938
5939 spin_lock_irqsave(&priv->low_lock, flags);
5940
5941 if (priv->fatal_error != 0) {
5942 /* If fatal_error is set then we need to restart */
5943 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
5944 priv->net_dev->name);
5945
5946 restart = 1;
5947 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
5948 (rtc == priv->last_rtc)) {
5949 /* Check if firmware is hung */
5950 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
5951 priv->net_dev->name);
5952
5953 restart = 1;
5954 }
5955
5956 if (restart) {
5957 /* Kill timer */
5958 priv->stop_hang_check = 1;
5959 priv->hangs++;
5960
5961 /* Restart the NIC */
5962 schedule_reset(priv);
5963 }
5964
5965 priv->last_rtc = rtc;
5966
5967 if (!priv->stop_hang_check)
5968 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
5969
5970 spin_unlock_irqrestore(&priv->low_lock, flags);
5971 }
5972
5973 static void ipw2100_rf_kill(struct work_struct *work)
5974 {
5975 struct ipw2100_priv *priv =
5976 container_of(work, struct ipw2100_priv, rf_kill.work);
5977 unsigned long flags;
5978
5979 spin_lock_irqsave(&priv->low_lock, flags);
5980
5981 if (rf_kill_active(priv)) {
5982 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
5983 if (!priv->stop_rf_kill)
5984 queue_delayed_work(priv->workqueue, &priv->rf_kill,
5985 round_jiffies_relative(HZ));
5986 goto exit_unlock;
5987 }
5988
5989 /* RF Kill is now disabled, so bring the device back up */
5990
5991 if (!(priv->status & STATUS_RF_KILL_MASK)) {
5992 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
5993 "device\n");
5994 schedule_reset(priv);
5995 } else
5996 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
5997 "enabled\n");
5998
5999 exit_unlock:
6000 spin_unlock_irqrestore(&priv->low_lock, flags);
6001 }
6002
6003 static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
6004
6005 /* Look into using netdev destructor to shutdown ieee80211? */
6006
6007 static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6008 void __iomem * base_addr,
6009 unsigned long mem_start,
6010 unsigned long mem_len)
6011 {
6012 struct ipw2100_priv *priv;
6013 struct net_device *dev;
6014
6015 dev = alloc_ieee80211(sizeof(struct ipw2100_priv));
6016 if (!dev)
6017 return NULL;
6018 priv = ieee80211_priv(dev);
6019 priv->ieee = netdev_priv(dev);
6020 priv->pci_dev = pci_dev;
6021 priv->net_dev = dev;
6022
6023 priv->ieee->hard_start_xmit = ipw2100_tx;
6024 priv->ieee->set_security = shim__set_security;
6025
6026 priv->ieee->perfect_rssi = -20;
6027 priv->ieee->worst_rssi = -85;
6028
6029 dev->open = ipw2100_open;
6030 dev->stop = ipw2100_close;
6031 dev->init = ipw2100_net_init;
6032 dev->ethtool_ops = &ipw2100_ethtool_ops;
6033 dev->tx_timeout = ipw2100_tx_timeout;
6034 dev->wireless_handlers = &ipw2100_wx_handler_def;
6035 priv->wireless_data.ieee80211 = priv->ieee;
6036 dev->wireless_data = &priv->wireless_data;
6037 dev->set_mac_address = ipw2100_set_address;
6038 dev->watchdog_timeo = 3 * HZ;
6039 dev->irq = 0;
6040
6041 dev->base_addr = (unsigned long)base_addr;
6042 dev->mem_start = mem_start;
6043 dev->mem_end = dev->mem_start + mem_len - 1;
6044
6045 /* NOTE: We don't use the wireless_handlers hook
6046 * in dev as the system will start throwing WX requests
6047 * to us before we're actually initialized and it just
6048 * ends up causing problems. So, we just handle
6049 * the WX extensions through the ipw2100_ioctl interface */
6050
6051 /* memset() puts everything to 0, so we only have explicitly set
6052 * those values that need to be something else */
6053
6054 /* If power management is turned on, default to AUTO mode */
6055 priv->power_mode = IPW_POWER_AUTO;
6056
6057 #ifdef CONFIG_IPW2100_MONITOR
6058 priv->config |= CFG_CRC_CHECK;
6059 #endif
6060 priv->ieee->wpa_enabled = 0;
6061 priv->ieee->drop_unencrypted = 0;
6062 priv->ieee->privacy_invoked = 0;
6063 priv->ieee->ieee802_1x = 1;
6064
6065 /* Set module parameters */
6066 switch (mode) {
6067 case 1:
6068 priv->ieee->iw_mode = IW_MODE_ADHOC;
6069 break;
6070 #ifdef CONFIG_IPW2100_MONITOR
6071 case 2:
6072 priv->ieee->iw_mode = IW_MODE_MONITOR;
6073 break;
6074 #endif
6075 default:
6076 case 0:
6077 priv->ieee->iw_mode = IW_MODE_INFRA;
6078 break;
6079 }
6080
6081 if (disable == 1)
6082 priv->status |= STATUS_RF_KILL_SW;
6083
6084 if (channel != 0 &&
6085 ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6086 priv->config |= CFG_STATIC_CHANNEL;
6087 priv->channel = channel;
6088 }
6089
6090 if (associate)
6091 priv->config |= CFG_ASSOCIATE;
6092
6093 priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6094 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6095 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6096 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6097 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6098 priv->tx_power = IPW_TX_POWER_DEFAULT;
6099 priv->tx_rates = DEFAULT_TX_RATES;
6100
6101 strcpy(priv->nick, "ipw2100");
6102
6103 spin_lock_init(&priv->low_lock);
6104 mutex_init(&priv->action_mutex);
6105 mutex_init(&priv->adapter_mutex);
6106
6107 init_waitqueue_head(&priv->wait_command_queue);
6108
6109 netif_carrier_off(dev);
6110
6111 INIT_LIST_HEAD(&priv->msg_free_list);
6112 INIT_LIST_HEAD(&priv->msg_pend_list);
6113 INIT_STAT(&priv->msg_free_stat);
6114 INIT_STAT(&priv->msg_pend_stat);
6115
6116 INIT_LIST_HEAD(&priv->tx_free_list);
6117 INIT_LIST_HEAD(&priv->tx_pend_list);
6118 INIT_STAT(&priv->tx_free_stat);
6119 INIT_STAT(&priv->tx_pend_stat);
6120
6121 INIT_LIST_HEAD(&priv->fw_pend_list);
6122 INIT_STAT(&priv->fw_pend_stat);
6123
6124 priv->workqueue = create_workqueue(DRV_NAME);
6125
6126 INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter);
6127 INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work);
6128 INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
6129 INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
6130 INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
6131 INIT_WORK(&priv->scan_event_now, ipw2100_scan_event_now);
6132 INIT_DELAYED_WORK(&priv->scan_event_later, ipw2100_scan_event_later);
6133
6134 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6135 ipw2100_irq_tasklet, (unsigned long)priv);
6136
6137 /* NOTE: We do not start the deferred work for status checks yet */
6138 priv->stop_rf_kill = 1;
6139 priv->stop_hang_check = 1;
6140
6141 return dev;
6142 }
6143
6144 static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6145 const struct pci_device_id *ent)
6146 {
6147 unsigned long mem_start, mem_len, mem_flags;
6148 void __iomem *base_addr = NULL;
6149 struct net_device *dev = NULL;
6150 struct ipw2100_priv *priv = NULL;
6151 int err = 0;
6152 int registered = 0;
6153 u32 val;
6154
6155 IPW_DEBUG_INFO("enter\n");
6156
6157 mem_start = pci_resource_start(pci_dev, 0);
6158 mem_len = pci_resource_len(pci_dev, 0);
6159 mem_flags = pci_resource_flags(pci_dev, 0);
6160
6161 if ((mem_flags & IORESOURCE_MEM) != IORESOURCE_MEM) {
6162 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6163 err = -ENODEV;
6164 goto fail;
6165 }
6166
6167 base_addr = ioremap_nocache(mem_start, mem_len);
6168 if (!base_addr) {
6169 printk(KERN_WARNING DRV_NAME
6170 "Error calling ioremap_nocache.\n");
6171 err = -EIO;
6172 goto fail;
6173 }
6174
6175 /* allocate and initialize our net_device */
6176 dev = ipw2100_alloc_device(pci_dev, base_addr, mem_start, mem_len);
6177 if (!dev) {
6178 printk(KERN_WARNING DRV_NAME
6179 "Error calling ipw2100_alloc_device.\n");
6180 err = -ENOMEM;
6181 goto fail;
6182 }
6183
6184 /* set up PCI mappings for device */
6185 err = pci_enable_device(pci_dev);
6186 if (err) {
6187 printk(KERN_WARNING DRV_NAME
6188 "Error calling pci_enable_device.\n");
6189 return err;
6190 }
6191
6192 priv = ieee80211_priv(dev);
6193
6194 pci_set_master(pci_dev);
6195 pci_set_drvdata(pci_dev, priv);
6196
6197 err = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK);
6198 if (err) {
6199 printk(KERN_WARNING DRV_NAME
6200 "Error calling pci_set_dma_mask.\n");
6201 pci_disable_device(pci_dev);
6202 return err;
6203 }
6204
6205 err = pci_request_regions(pci_dev, DRV_NAME);
6206 if (err) {
6207 printk(KERN_WARNING DRV_NAME
6208 "Error calling pci_request_regions.\n");
6209 pci_disable_device(pci_dev);
6210 return err;
6211 }
6212
6213 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6214 * PCI Tx retries from interfering with C3 CPU state */
6215 pci_read_config_dword(pci_dev, 0x40, &val);
6216 if ((val & 0x0000ff00) != 0)
6217 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6218
6219 pci_set_power_state(pci_dev, PCI_D0);
6220
6221 if (!ipw2100_hw_is_adapter_in_system(dev)) {
6222 printk(KERN_WARNING DRV_NAME
6223 "Device not found via register read.\n");
6224 err = -ENODEV;
6225 goto fail;
6226 }
6227
6228 SET_NETDEV_DEV(dev, &pci_dev->dev);
6229
6230 /* Force interrupts to be shut off on the device */
6231 priv->status |= STATUS_INT_ENABLED;
6232 ipw2100_disable_interrupts(priv);
6233
6234 /* Allocate and initialize the Tx/Rx queues and lists */
6235 if (ipw2100_queues_allocate(priv)) {
6236 printk(KERN_WARNING DRV_NAME
6237 "Error calling ipw2100_queues_allocate.\n");
6238 err = -ENOMEM;
6239 goto fail;
6240 }
6241 ipw2100_queues_initialize(priv);
6242
6243 err = request_irq(pci_dev->irq,
6244 ipw2100_interrupt, IRQF_SHARED, dev->name, priv);
6245 if (err) {
6246 printk(KERN_WARNING DRV_NAME
6247 "Error calling request_irq: %d.\n", pci_dev->irq);
6248 goto fail;
6249 }
6250 dev->irq = pci_dev->irq;
6251
6252 IPW_DEBUG_INFO("Attempting to register device...\n");
6253
6254 printk(KERN_INFO DRV_NAME
6255 ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6256
6257 /* Bring up the interface. Pre 0.46, after we registered the
6258 * network device we would call ipw2100_up. This introduced a race
6259 * condition with newer hotplug configurations (network was coming
6260 * up and making calls before the device was initialized).
6261 *
6262 * If we called ipw2100_up before we registered the device, then the
6263 * device name wasn't registered. So, we instead use the net_dev->init
6264 * member to call a function that then just turns and calls ipw2100_up.
6265 * net_dev->init is called after name allocation but before the
6266 * notifier chain is called */
6267 err = register_netdev(dev);
6268 if (err) {
6269 printk(KERN_WARNING DRV_NAME
6270 "Error calling register_netdev.\n");
6271 goto fail;
6272 }
6273
6274 mutex_lock(&priv->action_mutex);
6275 registered = 1;
6276
6277 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6278
6279 /* perform this after register_netdev so that dev->name is set */
6280 err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6281 if (err)
6282 goto fail_unlock;
6283
6284 /* If the RF Kill switch is disabled, go ahead and complete the
6285 * startup sequence */
6286 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6287 /* Enable the adapter - sends HOST_COMPLETE */
6288 if (ipw2100_enable_adapter(priv)) {
6289 printk(KERN_WARNING DRV_NAME
6290 ": %s: failed in call to enable adapter.\n",
6291 priv->net_dev->name);
6292 ipw2100_hw_stop_adapter(priv);
6293 err = -EIO;
6294 goto fail_unlock;
6295 }
6296
6297 /* Start a scan . . . */
6298 ipw2100_set_scan_options(priv);
6299 ipw2100_start_scan(priv);
6300 }
6301
6302 IPW_DEBUG_INFO("exit\n");
6303
6304 priv->status |= STATUS_INITIALIZED;
6305
6306 mutex_unlock(&priv->action_mutex);
6307
6308 return 0;
6309
6310 fail_unlock:
6311 mutex_unlock(&priv->action_mutex);
6312
6313 fail:
6314 if (dev) {
6315 if (registered)
6316 unregister_netdev(dev);
6317
6318 ipw2100_hw_stop_adapter(priv);
6319
6320 ipw2100_disable_interrupts(priv);
6321
6322 if (dev->irq)
6323 free_irq(dev->irq, priv);
6324
6325 ipw2100_kill_workqueue(priv);
6326
6327 /* These are safe to call even if they weren't allocated */
6328 ipw2100_queues_free(priv);
6329 sysfs_remove_group(&pci_dev->dev.kobj,
6330 &ipw2100_attribute_group);
6331
6332 free_ieee80211(dev);
6333 pci_set_drvdata(pci_dev, NULL);
6334 }
6335
6336 if (base_addr)
6337 iounmap(base_addr);
6338
6339 pci_release_regions(pci_dev);
6340 pci_disable_device(pci_dev);
6341
6342 return err;
6343 }
6344
6345 static void __devexit ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6346 {
6347 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6348 struct net_device *dev;
6349
6350 if (priv) {
6351 mutex_lock(&priv->action_mutex);
6352
6353 priv->status &= ~STATUS_INITIALIZED;
6354
6355 dev = priv->net_dev;
6356 sysfs_remove_group(&pci_dev->dev.kobj,
6357 &ipw2100_attribute_group);
6358
6359 #ifdef CONFIG_PM
6360 if (ipw2100_firmware.version)
6361 ipw2100_release_firmware(priv, &ipw2100_firmware);
6362 #endif
6363 /* Take down the hardware */
6364 ipw2100_down(priv);
6365
6366 /* Release the mutex so that the network subsystem can
6367 * complete any needed calls into the driver... */
6368 mutex_unlock(&priv->action_mutex);
6369
6370 /* Unregister the device first - this results in close()
6371 * being called if the device is open. If we free storage
6372 * first, then close() will crash. */
6373 unregister_netdev(dev);
6374
6375 /* ipw2100_down will ensure that there is no more pending work
6376 * in the workqueue's, so we can safely remove them now. */
6377 ipw2100_kill_workqueue(priv);
6378
6379 ipw2100_queues_free(priv);
6380
6381 /* Free potential debugging firmware snapshot */
6382 ipw2100_snapshot_free(priv);
6383
6384 if (dev->irq)
6385 free_irq(dev->irq, priv);
6386
6387 if (dev->base_addr)
6388 iounmap((void __iomem *)dev->base_addr);
6389
6390 free_ieee80211(dev);
6391 }
6392
6393 pci_release_regions(pci_dev);
6394 pci_disable_device(pci_dev);
6395
6396 IPW_DEBUG_INFO("exit\n");
6397 }
6398
6399 #ifdef CONFIG_PM
6400 static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state)
6401 {
6402 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6403 struct net_device *dev = priv->net_dev;
6404
6405 IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6406
6407 mutex_lock(&priv->action_mutex);
6408 if (priv->status & STATUS_INITIALIZED) {
6409 /* Take down the device; powers it off, etc. */
6410 ipw2100_down(priv);
6411 }
6412
6413 /* Remove the PRESENT state of the device */
6414 netif_device_detach(dev);
6415
6416 pci_save_state(pci_dev);
6417 pci_disable_device(pci_dev);
6418 pci_set_power_state(pci_dev, PCI_D3hot);
6419
6420 mutex_unlock(&priv->action_mutex);
6421
6422 return 0;
6423 }
6424
6425 static int ipw2100_resume(struct pci_dev *pci_dev)
6426 {
6427 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6428 struct net_device *dev = priv->net_dev;
6429 int err;
6430 u32 val;
6431
6432 if (IPW2100_PM_DISABLED)
6433 return 0;
6434
6435 mutex_lock(&priv->action_mutex);
6436
6437 IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6438
6439 pci_set_power_state(pci_dev, PCI_D0);
6440 err = pci_enable_device(pci_dev);
6441 if (err) {
6442 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
6443 dev->name);
6444 return err;
6445 }
6446 pci_restore_state(pci_dev);
6447
6448 /*
6449 * Suspend/Resume resets the PCI configuration space, so we have to
6450 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6451 * from interfering with C3 CPU state. pci_restore_state won't help
6452 * here since it only restores the first 64 bytes pci config header.
6453 */
6454 pci_read_config_dword(pci_dev, 0x40, &val);
6455 if ((val & 0x0000ff00) != 0)
6456 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6457
6458 /* Set the device back into the PRESENT state; this will also wake
6459 * the queue of needed */
6460 netif_device_attach(dev);
6461
6462 /* Bring the device back up */
6463 if (!(priv->status & STATUS_RF_KILL_SW))
6464 ipw2100_up(priv, 0);
6465
6466 mutex_unlock(&priv->action_mutex);
6467
6468 return 0;
6469 }
6470 #endif
6471
6472 #define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6473
6474 static struct pci_device_id ipw2100_pci_id_table[] __devinitdata = {
6475 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6476 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6477 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6478 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6479 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6480 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6481 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6482 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6483 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6484 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6485 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6486 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6487 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6488
6489 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6490 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6491 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6492 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6493 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6494
6495 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6496 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6497 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6498 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6499 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6500 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6501 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6502
6503 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6504
6505 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6506 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6507 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6508 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6509 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6510 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6511 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6512
6513 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6514 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6515 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6516 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6517 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6518 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6519
6520 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6521 {0,},
6522 };
6523
6524 MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6525
6526 static struct pci_driver ipw2100_pci_driver = {
6527 .name = DRV_NAME,
6528 .id_table = ipw2100_pci_id_table,
6529 .probe = ipw2100_pci_init_one,
6530 .remove = __devexit_p(ipw2100_pci_remove_one),
6531 #ifdef CONFIG_PM
6532 .suspend = ipw2100_suspend,
6533 .resume = ipw2100_resume,
6534 #endif
6535 };
6536
6537 /**
6538 * Initialize the ipw2100 driver/module
6539 *
6540 * @returns 0 if ok, < 0 errno node con error.
6541 *
6542 * Note: we cannot init the /proc stuff until the PCI driver is there,
6543 * or we risk an unlikely race condition on someone accessing
6544 * uninitialized data in the PCI dev struct through /proc.
6545 */
6546 static int __init ipw2100_init(void)
6547 {
6548 int ret;
6549
6550 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6551 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6552
6553 ret = pci_register_driver(&ipw2100_pci_driver);
6554 if (ret)
6555 goto out;
6556
6557 set_acceptable_latency("ipw2100", INFINITE_LATENCY);
6558 #ifdef CONFIG_IPW2100_DEBUG
6559 ipw2100_debug_level = debug;
6560 ret = driver_create_file(&ipw2100_pci_driver.driver,
6561 &driver_attr_debug_level);
6562 #endif
6563
6564 out:
6565 return ret;
6566 }
6567
6568 /**
6569 * Cleanup ipw2100 driver registration
6570 */
6571 static void __exit ipw2100_exit(void)
6572 {
6573 /* FIXME: IPG: check that we have no instances of the devices open */
6574 #ifdef CONFIG_IPW2100_DEBUG
6575 driver_remove_file(&ipw2100_pci_driver.driver,
6576 &driver_attr_debug_level);
6577 #endif
6578 pci_unregister_driver(&ipw2100_pci_driver);
6579 remove_acceptable_latency("ipw2100");
6580 }
6581
6582 module_init(ipw2100_init);
6583 module_exit(ipw2100_exit);
6584
6585 #define WEXT_USECHANNELS 1
6586
6587 static const long ipw2100_frequencies[] = {
6588 2412, 2417, 2422, 2427,
6589 2432, 2437, 2442, 2447,
6590 2452, 2457, 2462, 2467,
6591 2472, 2484
6592 };
6593
6594 #define FREQ_COUNT (sizeof(ipw2100_frequencies) / \
6595 sizeof(ipw2100_frequencies[0]))
6596
6597 static const long ipw2100_rates_11b[] = {
6598 1000000,
6599 2000000,
6600 5500000,
6601 11000000
6602 };
6603
6604 #define RATE_COUNT ARRAY_SIZE(ipw2100_rates_11b)
6605
6606 static int ipw2100_wx_get_name(struct net_device *dev,
6607 struct iw_request_info *info,
6608 union iwreq_data *wrqu, char *extra)
6609 {
6610 /*
6611 * This can be called at any time. No action lock required
6612 */
6613
6614 struct ipw2100_priv *priv = ieee80211_priv(dev);
6615 if (!(priv->status & STATUS_ASSOCIATED))
6616 strcpy(wrqu->name, "unassociated");
6617 else
6618 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6619
6620 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6621 return 0;
6622 }
6623
6624 static int ipw2100_wx_set_freq(struct net_device *dev,
6625 struct iw_request_info *info,
6626 union iwreq_data *wrqu, char *extra)
6627 {
6628 struct ipw2100_priv *priv = ieee80211_priv(dev);
6629 struct iw_freq *fwrq = &wrqu->freq;
6630 int err = 0;
6631
6632 if (priv->ieee->iw_mode == IW_MODE_INFRA)
6633 return -EOPNOTSUPP;
6634
6635 mutex_lock(&priv->action_mutex);
6636 if (!(priv->status & STATUS_INITIALIZED)) {
6637 err = -EIO;
6638 goto done;
6639 }
6640
6641 /* if setting by freq convert to channel */
6642 if (fwrq->e == 1) {
6643 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6644 int f = fwrq->m / 100000;
6645 int c = 0;
6646
6647 while ((c < REG_MAX_CHANNEL) &&
6648 (f != ipw2100_frequencies[c]))
6649 c++;
6650
6651 /* hack to fall through */
6652 fwrq->e = 0;
6653 fwrq->m = c + 1;
6654 }
6655 }
6656
6657 if (fwrq->e > 0 || fwrq->m > 1000) {
6658 err = -EOPNOTSUPP;
6659 goto done;
6660 } else { /* Set the channel */
6661 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
6662 err = ipw2100_set_channel(priv, fwrq->m, 0);
6663 }
6664
6665 done:
6666 mutex_unlock(&priv->action_mutex);
6667 return err;
6668 }
6669
6670 static int ipw2100_wx_get_freq(struct net_device *dev,
6671 struct iw_request_info *info,
6672 union iwreq_data *wrqu, char *extra)
6673 {
6674 /*
6675 * This can be called at any time. No action lock required
6676 */
6677
6678 struct ipw2100_priv *priv = ieee80211_priv(dev);
6679
6680 wrqu->freq.e = 0;
6681
6682 /* If we are associated, trying to associate, or have a statically
6683 * configured CHANNEL then return that; otherwise return ANY */
6684 if (priv->config & CFG_STATIC_CHANNEL ||
6685 priv->status & STATUS_ASSOCIATED)
6686 wrqu->freq.m = priv->channel;
6687 else
6688 wrqu->freq.m = 0;
6689
6690 IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
6691 return 0;
6692
6693 }
6694
6695 static int ipw2100_wx_set_mode(struct net_device *dev,
6696 struct iw_request_info *info,
6697 union iwreq_data *wrqu, char *extra)
6698 {
6699 struct ipw2100_priv *priv = ieee80211_priv(dev);
6700 int err = 0;
6701
6702 IPW_DEBUG_WX("SET Mode -> %d \n", wrqu->mode);
6703
6704 if (wrqu->mode == priv->ieee->iw_mode)
6705 return 0;
6706
6707 mutex_lock(&priv->action_mutex);
6708 if (!(priv->status & STATUS_INITIALIZED)) {
6709 err = -EIO;
6710 goto done;
6711 }
6712
6713 switch (wrqu->mode) {
6714 #ifdef CONFIG_IPW2100_MONITOR
6715 case IW_MODE_MONITOR:
6716 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
6717 break;
6718 #endif /* CONFIG_IPW2100_MONITOR */
6719 case IW_MODE_ADHOC:
6720 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
6721 break;
6722 case IW_MODE_INFRA:
6723 case IW_MODE_AUTO:
6724 default:
6725 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
6726 break;
6727 }
6728
6729 done:
6730 mutex_unlock(&priv->action_mutex);
6731 return err;
6732 }
6733
6734 static int ipw2100_wx_get_mode(struct net_device *dev,
6735 struct iw_request_info *info,
6736 union iwreq_data *wrqu, char *extra)
6737 {
6738 /*
6739 * This can be called at any time. No action lock required
6740 */
6741
6742 struct ipw2100_priv *priv = ieee80211_priv(dev);
6743
6744 wrqu->mode = priv->ieee->iw_mode;
6745 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
6746
6747 return 0;
6748 }
6749
6750 #define POWER_MODES 5
6751
6752 /* Values are in microsecond */
6753 static const s32 timeout_duration[POWER_MODES] = {
6754 350000,
6755 250000,
6756 75000,
6757 37000,
6758 25000,
6759 };
6760
6761 static const s32 period_duration[POWER_MODES] = {
6762 400000,
6763 700000,
6764 1000000,
6765 1000000,
6766 1000000
6767 };
6768
6769 static int ipw2100_wx_get_range(struct net_device *dev,
6770 struct iw_request_info *info,
6771 union iwreq_data *wrqu, char *extra)
6772 {
6773 /*
6774 * This can be called at any time. No action lock required
6775 */
6776
6777 struct ipw2100_priv *priv = ieee80211_priv(dev);
6778 struct iw_range *range = (struct iw_range *)extra;
6779 u16 val;
6780 int i, level;
6781
6782 wrqu->data.length = sizeof(*range);
6783 memset(range, 0, sizeof(*range));
6784
6785 /* Let's try to keep this struct in the same order as in
6786 * linux/include/wireless.h
6787 */
6788
6789 /* TODO: See what values we can set, and remove the ones we can't
6790 * set, or fill them with some default data.
6791 */
6792
6793 /* ~5 Mb/s real (802.11b) */
6794 range->throughput = 5 * 1000 * 1000;
6795
6796 // range->sensitivity; /* signal level threshold range */
6797
6798 range->max_qual.qual = 100;
6799 /* TODO: Find real max RSSI and stick here */
6800 range->max_qual.level = 0;
6801 range->max_qual.noise = 0;
6802 range->max_qual.updated = 7; /* Updated all three */
6803
6804 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
6805 /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
6806 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
6807 range->avg_qual.noise = 0;
6808 range->avg_qual.updated = 7; /* Updated all three */
6809
6810 range->num_bitrates = RATE_COUNT;
6811
6812 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
6813 range->bitrate[i] = ipw2100_rates_11b[i];
6814 }
6815
6816 range->min_rts = MIN_RTS_THRESHOLD;
6817 range->max_rts = MAX_RTS_THRESHOLD;
6818 range->min_frag = MIN_FRAG_THRESHOLD;
6819 range->max_frag = MAX_FRAG_THRESHOLD;
6820
6821 range->min_pmp = period_duration[0]; /* Minimal PM period */
6822 range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */
6823 range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */
6824 range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */
6825
6826 /* How to decode max/min PM period */
6827 range->pmp_flags = IW_POWER_PERIOD;
6828 /* How to decode max/min PM period */
6829 range->pmt_flags = IW_POWER_TIMEOUT;
6830 /* What PM options are supported */
6831 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
6832
6833 range->encoding_size[0] = 5;
6834 range->encoding_size[1] = 13; /* Different token sizes */
6835 range->num_encoding_sizes = 2; /* Number of entry in the list */
6836 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */
6837 // range->encoding_login_index; /* token index for login token */
6838
6839 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6840 range->txpower_capa = IW_TXPOW_DBM;
6841 range->num_txpower = IW_MAX_TXPOWER;
6842 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
6843 i < IW_MAX_TXPOWER;
6844 i++, level -=
6845 ((IPW_TX_POWER_MAX_DBM -
6846 IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
6847 range->txpower[i] = level / 16;
6848 } else {
6849 range->txpower_capa = 0;
6850 range->num_txpower = 0;
6851 }
6852
6853 /* Set the Wireless Extension versions */
6854 range->we_version_compiled = WIRELESS_EXT;
6855 range->we_version_source = 18;
6856
6857 // range->retry_capa; /* What retry options are supported */
6858 // range->retry_flags; /* How to decode max/min retry limit */
6859 // range->r_time_flags; /* How to decode max/min retry life */
6860 // range->min_retry; /* Minimal number of retries */
6861 // range->max_retry; /* Maximal number of retries */
6862 // range->min_r_time; /* Minimal retry lifetime */
6863 // range->max_r_time; /* Maximal retry lifetime */
6864
6865 range->num_channels = FREQ_COUNT;
6866
6867 val = 0;
6868 for (i = 0; i < FREQ_COUNT; i++) {
6869 // TODO: Include only legal frequencies for some countries
6870 // if (local->channel_mask & (1 << i)) {
6871 range->freq[val].i = i + 1;
6872 range->freq[val].m = ipw2100_frequencies[i] * 100000;
6873 range->freq[val].e = 1;
6874 val++;
6875 // }
6876 if (val == IW_MAX_FREQUENCIES)
6877 break;
6878 }
6879 range->num_frequency = val;
6880
6881 /* Event capability (kernel + driver) */
6882 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6883 IW_EVENT_CAPA_MASK(SIOCGIWAP));
6884 range->event_capa[1] = IW_EVENT_CAPA_K_1;
6885
6886 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
6887 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
6888
6889 IPW_DEBUG_WX("GET Range\n");
6890
6891 return 0;
6892 }
6893
6894 static int ipw2100_wx_set_wap(struct net_device *dev,
6895 struct iw_request_info *info,
6896 union iwreq_data *wrqu, char *extra)
6897 {
6898 struct ipw2100_priv *priv = ieee80211_priv(dev);
6899 int err = 0;
6900
6901 static const unsigned char any[] = {
6902 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6903 };
6904 static const unsigned char off[] = {
6905 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6906 };
6907 DECLARE_MAC_BUF(mac);
6908
6909 // sanity checks
6910 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
6911 return -EINVAL;
6912
6913 mutex_lock(&priv->action_mutex);
6914 if (!(priv->status & STATUS_INITIALIZED)) {
6915 err = -EIO;
6916 goto done;
6917 }
6918
6919 if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
6920 !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
6921 /* we disable mandatory BSSID association */
6922 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
6923 priv->config &= ~CFG_STATIC_BSSID;
6924 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
6925 goto done;
6926 }
6927
6928 priv->config |= CFG_STATIC_BSSID;
6929 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
6930
6931 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
6932
6933 IPW_DEBUG_WX("SET BSSID -> %s\n",
6934 print_mac(mac, wrqu->ap_addr.sa_data));
6935
6936 done:
6937 mutex_unlock(&priv->action_mutex);
6938 return err;
6939 }
6940
6941 static int ipw2100_wx_get_wap(struct net_device *dev,
6942 struct iw_request_info *info,
6943 union iwreq_data *wrqu, char *extra)
6944 {
6945 /*
6946 * This can be called at any time. No action lock required
6947 */
6948
6949 struct ipw2100_priv *priv = ieee80211_priv(dev);
6950 DECLARE_MAC_BUF(mac);
6951
6952 /* If we are associated, trying to associate, or have a statically
6953 * configured BSSID then return that; otherwise return ANY */
6954 if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
6955 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
6956 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
6957 } else
6958 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
6959
6960 IPW_DEBUG_WX("Getting WAP BSSID: %s\n",
6961 print_mac(mac, wrqu->ap_addr.sa_data));
6962 return 0;
6963 }
6964
6965 static int ipw2100_wx_set_essid(struct net_device *dev,
6966 struct iw_request_info *info,
6967 union iwreq_data *wrqu, char *extra)
6968 {
6969 struct ipw2100_priv *priv = ieee80211_priv(dev);
6970 char *essid = ""; /* ANY */
6971 int length = 0;
6972 int err = 0;
6973
6974 mutex_lock(&priv->action_mutex);
6975 if (!(priv->status & STATUS_INITIALIZED)) {
6976 err = -EIO;
6977 goto done;
6978 }
6979
6980 if (wrqu->essid.flags && wrqu->essid.length) {
6981 length = wrqu->essid.length;
6982 essid = extra;
6983 }
6984
6985 if (length == 0) {
6986 IPW_DEBUG_WX("Setting ESSID to ANY\n");
6987 priv->config &= ~CFG_STATIC_ESSID;
6988 err = ipw2100_set_essid(priv, NULL, 0, 0);
6989 goto done;
6990 }
6991
6992 length = min(length, IW_ESSID_MAX_SIZE);
6993
6994 priv->config |= CFG_STATIC_ESSID;
6995
6996 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
6997 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
6998 err = 0;
6999 goto done;
7000 }
7001
7002 IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
7003 length);
7004
7005 priv->essid_len = length;
7006 memcpy(priv->essid, essid, priv->essid_len);
7007
7008 err = ipw2100_set_essid(priv, essid, length, 0);
7009
7010 done:
7011 mutex_unlock(&priv->action_mutex);
7012 return err;
7013 }
7014
7015 static int ipw2100_wx_get_essid(struct net_device *dev,
7016 struct iw_request_info *info,
7017 union iwreq_data *wrqu, char *extra)
7018 {
7019 /*
7020 * This can be called at any time. No action lock required
7021 */
7022
7023 struct ipw2100_priv *priv = ieee80211_priv(dev);
7024
7025 /* If we are associated, trying to associate, or have a statically
7026 * configured ESSID then return that; otherwise return ANY */
7027 if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
7028 IPW_DEBUG_WX("Getting essid: '%s'\n",
7029 escape_essid(priv->essid, priv->essid_len));
7030 memcpy(extra, priv->essid, priv->essid_len);
7031 wrqu->essid.length = priv->essid_len;
7032 wrqu->essid.flags = 1; /* active */
7033 } else {
7034 IPW_DEBUG_WX("Getting essid: ANY\n");
7035 wrqu->essid.length = 0;
7036 wrqu->essid.flags = 0; /* active */
7037 }
7038
7039 return 0;
7040 }
7041
7042 static int ipw2100_wx_set_nick(struct net_device *dev,
7043 struct iw_request_info *info,
7044 union iwreq_data *wrqu, char *extra)
7045 {
7046 /*
7047 * This can be called at any time. No action lock required
7048 */
7049
7050 struct ipw2100_priv *priv = ieee80211_priv(dev);
7051
7052 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7053 return -E2BIG;
7054
7055 wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
7056 memset(priv->nick, 0, sizeof(priv->nick));
7057 memcpy(priv->nick, extra, wrqu->data.length);
7058
7059 IPW_DEBUG_WX("SET Nickname -> %s \n", priv->nick);
7060
7061 return 0;
7062 }
7063
7064 static int ipw2100_wx_get_nick(struct net_device *dev,
7065 struct iw_request_info *info,
7066 union iwreq_data *wrqu, char *extra)
7067 {
7068 /*
7069 * This can be called at any time. No action lock required
7070 */
7071
7072 struct ipw2100_priv *priv = ieee80211_priv(dev);
7073
7074 wrqu->data.length = strlen(priv->nick);
7075 memcpy(extra, priv->nick, wrqu->data.length);
7076 wrqu->data.flags = 1; /* active */
7077
7078 IPW_DEBUG_WX("GET Nickname -> %s \n", extra);
7079
7080 return 0;
7081 }
7082
7083 static int ipw2100_wx_set_rate(struct net_device *dev,
7084 struct iw_request_info *info,
7085 union iwreq_data *wrqu, char *extra)
7086 {
7087 struct ipw2100_priv *priv = ieee80211_priv(dev);
7088 u32 target_rate = wrqu->bitrate.value;
7089 u32 rate;
7090 int err = 0;
7091
7092 mutex_lock(&priv->action_mutex);
7093 if (!(priv->status & STATUS_INITIALIZED)) {
7094 err = -EIO;
7095 goto done;
7096 }
7097
7098 rate = 0;
7099
7100 if (target_rate == 1000000 ||
7101 (!wrqu->bitrate.fixed && target_rate > 1000000))
7102 rate |= TX_RATE_1_MBIT;
7103 if (target_rate == 2000000 ||
7104 (!wrqu->bitrate.fixed && target_rate > 2000000))
7105 rate |= TX_RATE_2_MBIT;
7106 if (target_rate == 5500000 ||
7107 (!wrqu->bitrate.fixed && target_rate > 5500000))
7108 rate |= TX_RATE_5_5_MBIT;
7109 if (target_rate == 11000000 ||
7110 (!wrqu->bitrate.fixed && target_rate > 11000000))
7111 rate |= TX_RATE_11_MBIT;
7112 if (rate == 0)
7113 rate = DEFAULT_TX_RATES;
7114
7115 err = ipw2100_set_tx_rates(priv, rate, 0);
7116
7117 IPW_DEBUG_WX("SET Rate -> %04X \n", rate);
7118 done:
7119 mutex_unlock(&priv->action_mutex);
7120 return err;
7121 }
7122
7123 static int ipw2100_wx_get_rate(struct net_device *dev,
7124 struct iw_request_info *info,
7125 union iwreq_data *wrqu, char *extra)
7126 {
7127 struct ipw2100_priv *priv = ieee80211_priv(dev);
7128 int val;
7129 int len = sizeof(val);
7130 int err = 0;
7131
7132 if (!(priv->status & STATUS_ENABLED) ||
7133 priv->status & STATUS_RF_KILL_MASK ||
7134 !(priv->status & STATUS_ASSOCIATED)) {
7135 wrqu->bitrate.value = 0;
7136 return 0;
7137 }
7138
7139 mutex_lock(&priv->action_mutex);
7140 if (!(priv->status & STATUS_INITIALIZED)) {
7141 err = -EIO;
7142 goto done;
7143 }
7144
7145 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7146 if (err) {
7147 IPW_DEBUG_WX("failed querying ordinals.\n");
7148 return err;
7149 }
7150
7151 switch (val & TX_RATE_MASK) {
7152 case TX_RATE_1_MBIT:
7153 wrqu->bitrate.value = 1000000;
7154 break;
7155 case TX_RATE_2_MBIT:
7156 wrqu->bitrate.value = 2000000;
7157 break;
7158 case TX_RATE_5_5_MBIT:
7159 wrqu->bitrate.value = 5500000;
7160 break;
7161 case TX_RATE_11_MBIT:
7162 wrqu->bitrate.value = 11000000;
7163 break;
7164 default:
7165 wrqu->bitrate.value = 0;
7166 }
7167
7168 IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
7169
7170 done:
7171 mutex_unlock(&priv->action_mutex);
7172 return err;
7173 }
7174
7175 static int ipw2100_wx_set_rts(struct net_device *dev,
7176 struct iw_request_info *info,
7177 union iwreq_data *wrqu, char *extra)
7178 {
7179 struct ipw2100_priv *priv = ieee80211_priv(dev);
7180 int value, err;
7181
7182 /* Auto RTS not yet supported */
7183 if (wrqu->rts.fixed == 0)
7184 return -EINVAL;
7185
7186 mutex_lock(&priv->action_mutex);
7187 if (!(priv->status & STATUS_INITIALIZED)) {
7188 err = -EIO;
7189 goto done;
7190 }
7191
7192 if (wrqu->rts.disabled)
7193 value = priv->rts_threshold | RTS_DISABLED;
7194 else {
7195 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7196 err = -EINVAL;
7197 goto done;
7198 }
7199 value = wrqu->rts.value;
7200 }
7201
7202 err = ipw2100_set_rts_threshold(priv, value);
7203
7204 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X \n", value);
7205 done:
7206 mutex_unlock(&priv->action_mutex);
7207 return err;
7208 }
7209
7210 static int ipw2100_wx_get_rts(struct net_device *dev,
7211 struct iw_request_info *info,
7212 union iwreq_data *wrqu, char *extra)
7213 {
7214 /*
7215 * This can be called at any time. No action lock required
7216 */
7217
7218 struct ipw2100_priv *priv = ieee80211_priv(dev);
7219
7220 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7221 wrqu->rts.fixed = 1; /* no auto select */
7222
7223 /* If RTS is set to the default value, then it is disabled */
7224 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7225
7226 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X \n", wrqu->rts.value);
7227
7228 return 0;
7229 }
7230
7231 static int ipw2100_wx_set_txpow(struct net_device *dev,
7232 struct iw_request_info *info,
7233 union iwreq_data *wrqu, char *extra)
7234 {
7235 struct ipw2100_priv *priv = ieee80211_priv(dev);
7236 int err = 0, value;
7237
7238 if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled))
7239 return -EINPROGRESS;
7240
7241 if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7242 return 0;
7243
7244 if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
7245 return -EINVAL;
7246
7247 if (wrqu->txpower.fixed == 0)
7248 value = IPW_TX_POWER_DEFAULT;
7249 else {
7250 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7251 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7252 return -EINVAL;
7253
7254 value = wrqu->txpower.value;
7255 }
7256
7257 mutex_lock(&priv->action_mutex);
7258 if (!(priv->status & STATUS_INITIALIZED)) {
7259 err = -EIO;
7260 goto done;
7261 }
7262
7263 err = ipw2100_set_tx_power(priv, value);
7264
7265 IPW_DEBUG_WX("SET TX Power -> %d \n", value);
7266
7267 done:
7268 mutex_unlock(&priv->action_mutex);
7269 return err;
7270 }
7271
7272 static int ipw2100_wx_get_txpow(struct net_device *dev,
7273 struct iw_request_info *info,
7274 union iwreq_data *wrqu, char *extra)
7275 {
7276 /*
7277 * This can be called at any time. No action lock required
7278 */
7279
7280 struct ipw2100_priv *priv = ieee80211_priv(dev);
7281
7282 wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
7283
7284 if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7285 wrqu->txpower.fixed = 0;
7286 wrqu->txpower.value = IPW_TX_POWER_MAX_DBM;
7287 } else {
7288 wrqu->txpower.fixed = 1;
7289 wrqu->txpower.value = priv->tx_power;
7290 }
7291
7292 wrqu->txpower.flags = IW_TXPOW_DBM;
7293
7294 IPW_DEBUG_WX("GET TX Power -> %d \n", wrqu->txpower.value);
7295
7296 return 0;
7297 }
7298
7299 static int ipw2100_wx_set_frag(struct net_device *dev,
7300 struct iw_request_info *info,
7301 union iwreq_data *wrqu, char *extra)
7302 {
7303 /*
7304 * This can be called at any time. No action lock required
7305 */
7306
7307 struct ipw2100_priv *priv = ieee80211_priv(dev);
7308
7309 if (!wrqu->frag.fixed)
7310 return -EINVAL;
7311
7312 if (wrqu->frag.disabled) {
7313 priv->frag_threshold |= FRAG_DISABLED;
7314 priv->ieee->fts = DEFAULT_FTS;
7315 } else {
7316 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7317 wrqu->frag.value > MAX_FRAG_THRESHOLD)
7318 return -EINVAL;
7319
7320 priv->ieee->fts = wrqu->frag.value & ~0x1;
7321 priv->frag_threshold = priv->ieee->fts;
7322 }
7323
7324 IPW_DEBUG_WX("SET Frag Threshold -> %d \n", priv->ieee->fts);
7325
7326 return 0;
7327 }
7328
7329 static int ipw2100_wx_get_frag(struct net_device *dev,
7330 struct iw_request_info *info,
7331 union iwreq_data *wrqu, char *extra)
7332 {
7333 /*
7334 * This can be called at any time. No action lock required
7335 */
7336
7337 struct ipw2100_priv *priv = ieee80211_priv(dev);
7338 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7339 wrqu->frag.fixed = 0; /* no auto select */
7340 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7341
7342 IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
7343
7344 return 0;
7345 }
7346
7347 static int ipw2100_wx_set_retry(struct net_device *dev,
7348 struct iw_request_info *info,
7349 union iwreq_data *wrqu, char *extra)
7350 {
7351 struct ipw2100_priv *priv = ieee80211_priv(dev);
7352 int err = 0;
7353
7354 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7355 return -EINVAL;
7356
7357 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7358 return 0;
7359
7360 mutex_lock(&priv->action_mutex);
7361 if (!(priv->status & STATUS_INITIALIZED)) {
7362 err = -EIO;
7363 goto done;
7364 }
7365
7366 if (wrqu->retry.flags & IW_RETRY_SHORT) {
7367 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7368 IPW_DEBUG_WX("SET Short Retry Limit -> %d \n",
7369 wrqu->retry.value);
7370 goto done;
7371 }
7372
7373 if (wrqu->retry.flags & IW_RETRY_LONG) {
7374 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7375 IPW_DEBUG_WX("SET Long Retry Limit -> %d \n",
7376 wrqu->retry.value);
7377 goto done;
7378 }
7379
7380 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7381 if (!err)
7382 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7383
7384 IPW_DEBUG_WX("SET Both Retry Limits -> %d \n", wrqu->retry.value);
7385
7386 done:
7387 mutex_unlock(&priv->action_mutex);
7388 return err;
7389 }
7390
7391 static int ipw2100_wx_get_retry(struct net_device *dev,
7392 struct iw_request_info *info,
7393 union iwreq_data *wrqu, char *extra)
7394 {
7395 /*
7396 * This can be called at any time. No action lock required
7397 */
7398
7399 struct ipw2100_priv *priv = ieee80211_priv(dev);
7400
7401 wrqu->retry.disabled = 0; /* can't be disabled */
7402
7403 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7404 return -EINVAL;
7405
7406 if (wrqu->retry.flags & IW_RETRY_LONG) {
7407 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
7408 wrqu->retry.value = priv->long_retry_limit;
7409 } else {
7410 wrqu->retry.flags =
7411 (priv->short_retry_limit !=
7412 priv->long_retry_limit) ?
7413 IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT;
7414
7415 wrqu->retry.value = priv->short_retry_limit;
7416 }
7417
7418 IPW_DEBUG_WX("GET Retry -> %d \n", wrqu->retry.value);
7419
7420 return 0;
7421 }
7422
7423 static int ipw2100_wx_set_scan(struct net_device *dev,
7424 struct iw_request_info *info,
7425 union iwreq_data *wrqu, char *extra)
7426 {
7427 struct ipw2100_priv *priv = ieee80211_priv(dev);
7428 int err = 0;
7429
7430 mutex_lock(&priv->action_mutex);
7431 if (!(priv->status & STATUS_INITIALIZED)) {
7432 err = -EIO;
7433 goto done;
7434 }
7435
7436 IPW_DEBUG_WX("Initiating scan...\n");
7437
7438 priv->user_requested_scan = 1;
7439 if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7440 IPW_DEBUG_WX("Start scan failed.\n");
7441
7442 /* TODO: Mark a scan as pending so when hardware initialized
7443 * a scan starts */
7444 }
7445
7446 done:
7447 mutex_unlock(&priv->action_mutex);
7448 return err;
7449 }
7450
7451 static int ipw2100_wx_get_scan(struct net_device *dev,
7452 struct iw_request_info *info,
7453 union iwreq_data *wrqu, char *extra)
7454 {
7455 /*
7456 * This can be called at any time. No action lock required
7457 */
7458
7459 struct ipw2100_priv *priv = ieee80211_priv(dev);
7460 return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
7461 }
7462
7463 /*
7464 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7465 */
7466 static int ipw2100_wx_set_encode(struct net_device *dev,
7467 struct iw_request_info *info,
7468 union iwreq_data *wrqu, char *key)
7469 {
7470 /*
7471 * No check of STATUS_INITIALIZED required
7472 */
7473
7474 struct ipw2100_priv *priv = ieee80211_priv(dev);
7475 return ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
7476 }
7477
7478 static int ipw2100_wx_get_encode(struct net_device *dev,
7479 struct iw_request_info *info,
7480 union iwreq_data *wrqu, char *key)
7481 {
7482 /*
7483 * This can be called at any time. No action lock required
7484 */
7485
7486 struct ipw2100_priv *priv = ieee80211_priv(dev);
7487 return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
7488 }
7489
7490 static int ipw2100_wx_set_power(struct net_device *dev,
7491 struct iw_request_info *info,
7492 union iwreq_data *wrqu, char *extra)
7493 {
7494 struct ipw2100_priv *priv = ieee80211_priv(dev);
7495 int err = 0;
7496
7497 mutex_lock(&priv->action_mutex);
7498 if (!(priv->status & STATUS_INITIALIZED)) {
7499 err = -EIO;
7500 goto done;
7501 }
7502
7503 if (wrqu->power.disabled) {
7504 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7505 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7506 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7507 goto done;
7508 }
7509
7510 switch (wrqu->power.flags & IW_POWER_MODE) {
7511 case IW_POWER_ON: /* If not specified */
7512 case IW_POWER_MODE: /* If set all mask */
7513 case IW_POWER_ALL_R: /* If explicitly state all */
7514 break;
7515 default: /* Otherwise we don't support it */
7516 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7517 wrqu->power.flags);
7518 err = -EOPNOTSUPP;
7519 goto done;
7520 }
7521
7522 /* If the user hasn't specified a power management mode yet, default
7523 * to BATTERY */
7524 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7525 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7526
7527 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7528
7529 done:
7530 mutex_unlock(&priv->action_mutex);
7531 return err;
7532
7533 }
7534
7535 static int ipw2100_wx_get_power(struct net_device *dev,
7536 struct iw_request_info *info,
7537 union iwreq_data *wrqu, char *extra)
7538 {
7539 /*
7540 * This can be called at any time. No action lock required
7541 */
7542
7543 struct ipw2100_priv *priv = ieee80211_priv(dev);
7544
7545 if (!(priv->power_mode & IPW_POWER_ENABLED))
7546 wrqu->power.disabled = 1;
7547 else {
7548 wrqu->power.disabled = 0;
7549 wrqu->power.flags = 0;
7550 }
7551
7552 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7553
7554 return 0;
7555 }
7556
7557 /*
7558 * WE-18 WPA support
7559 */
7560
7561 /* SIOCSIWGENIE */
7562 static int ipw2100_wx_set_genie(struct net_device *dev,
7563 struct iw_request_info *info,
7564 union iwreq_data *wrqu, char *extra)
7565 {
7566
7567 struct ipw2100_priv *priv = ieee80211_priv(dev);
7568 struct ieee80211_device *ieee = priv->ieee;
7569 u8 *buf;
7570
7571 if (!ieee->wpa_enabled)
7572 return -EOPNOTSUPP;
7573
7574 if (wrqu->data.length > MAX_WPA_IE_LEN ||
7575 (wrqu->data.length && extra == NULL))
7576 return -EINVAL;
7577
7578 if (wrqu->data.length) {
7579 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
7580 if (buf == NULL)
7581 return -ENOMEM;
7582
7583 kfree(ieee->wpa_ie);
7584 ieee->wpa_ie = buf;
7585 ieee->wpa_ie_len = wrqu->data.length;
7586 } else {
7587 kfree(ieee->wpa_ie);
7588 ieee->wpa_ie = NULL;
7589 ieee->wpa_ie_len = 0;
7590 }
7591
7592 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7593
7594 return 0;
7595 }
7596
7597 /* SIOCGIWGENIE */
7598 static int ipw2100_wx_get_genie(struct net_device *dev,
7599 struct iw_request_info *info,
7600 union iwreq_data *wrqu, char *extra)
7601 {
7602 struct ipw2100_priv *priv = ieee80211_priv(dev);
7603 struct ieee80211_device *ieee = priv->ieee;
7604
7605 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7606 wrqu->data.length = 0;
7607 return 0;
7608 }
7609
7610 if (wrqu->data.length < ieee->wpa_ie_len)
7611 return -E2BIG;
7612
7613 wrqu->data.length = ieee->wpa_ie_len;
7614 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7615
7616 return 0;
7617 }
7618
7619 /* SIOCSIWAUTH */
7620 static int ipw2100_wx_set_auth(struct net_device *dev,
7621 struct iw_request_info *info,
7622 union iwreq_data *wrqu, char *extra)
7623 {
7624 struct ipw2100_priv *priv = ieee80211_priv(dev);
7625 struct ieee80211_device *ieee = priv->ieee;
7626 struct iw_param *param = &wrqu->param;
7627 struct ieee80211_crypt_data *crypt;
7628 unsigned long flags;
7629 int ret = 0;
7630
7631 switch (param->flags & IW_AUTH_INDEX) {
7632 case IW_AUTH_WPA_VERSION:
7633 case IW_AUTH_CIPHER_PAIRWISE:
7634 case IW_AUTH_CIPHER_GROUP:
7635 case IW_AUTH_KEY_MGMT:
7636 /*
7637 * ipw2200 does not use these parameters
7638 */
7639 break;
7640
7641 case IW_AUTH_TKIP_COUNTERMEASURES:
7642 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
7643 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
7644 break;
7645
7646 flags = crypt->ops->get_flags(crypt->priv);
7647
7648 if (param->value)
7649 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7650 else
7651 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7652
7653 crypt->ops->set_flags(flags, crypt->priv);
7654
7655 break;
7656
7657 case IW_AUTH_DROP_UNENCRYPTED:{
7658 /* HACK:
7659 *
7660 * wpa_supplicant calls set_wpa_enabled when the driver
7661 * is loaded and unloaded, regardless of if WPA is being
7662 * used. No other calls are made which can be used to
7663 * determine if encryption will be used or not prior to
7664 * association being expected. If encryption is not being
7665 * used, drop_unencrypted is set to false, else true -- we
7666 * can use this to determine if the CAP_PRIVACY_ON bit should
7667 * be set.
7668 */
7669 struct ieee80211_security sec = {
7670 .flags = SEC_ENABLED,
7671 .enabled = param->value,
7672 };
7673 priv->ieee->drop_unencrypted = param->value;
7674 /* We only change SEC_LEVEL for open mode. Others
7675 * are set by ipw_wpa_set_encryption.
7676 */
7677 if (!param->value) {
7678 sec.flags |= SEC_LEVEL;
7679 sec.level = SEC_LEVEL_0;
7680 } else {
7681 sec.flags |= SEC_LEVEL;
7682 sec.level = SEC_LEVEL_1;
7683 }
7684 if (priv->ieee->set_security)
7685 priv->ieee->set_security(priv->ieee->dev, &sec);
7686 break;
7687 }
7688
7689 case IW_AUTH_80211_AUTH_ALG:
7690 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7691 break;
7692
7693 case IW_AUTH_WPA_ENABLED:
7694 ret = ipw2100_wpa_enable(priv, param->value);
7695 break;
7696
7697 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7698 ieee->ieee802_1x = param->value;
7699 break;
7700
7701 //case IW_AUTH_ROAMING_CONTROL:
7702 case IW_AUTH_PRIVACY_INVOKED:
7703 ieee->privacy_invoked = param->value;
7704 break;
7705
7706 default:
7707 return -EOPNOTSUPP;
7708 }
7709 return ret;
7710 }
7711
7712 /* SIOCGIWAUTH */
7713 static int ipw2100_wx_get_auth(struct net_device *dev,
7714 struct iw_request_info *info,
7715 union iwreq_data *wrqu, char *extra)
7716 {
7717 struct ipw2100_priv *priv = ieee80211_priv(dev);
7718 struct ieee80211_device *ieee = priv->ieee;
7719 struct ieee80211_crypt_data *crypt;
7720 struct iw_param *param = &wrqu->param;
7721 int ret = 0;
7722
7723 switch (param->flags & IW_AUTH_INDEX) {
7724 case IW_AUTH_WPA_VERSION:
7725 case IW_AUTH_CIPHER_PAIRWISE:
7726 case IW_AUTH_CIPHER_GROUP:
7727 case IW_AUTH_KEY_MGMT:
7728 /*
7729 * wpa_supplicant will control these internally
7730 */
7731 ret = -EOPNOTSUPP;
7732 break;
7733
7734 case IW_AUTH_TKIP_COUNTERMEASURES:
7735 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
7736 if (!crypt || !crypt->ops->get_flags) {
7737 IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
7738 "crypt not set!\n");
7739 break;
7740 }
7741
7742 param->value = (crypt->ops->get_flags(crypt->priv) &
7743 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
7744
7745 break;
7746
7747 case IW_AUTH_DROP_UNENCRYPTED:
7748 param->value = ieee->drop_unencrypted;
7749 break;
7750
7751 case IW_AUTH_80211_AUTH_ALG:
7752 param->value = priv->ieee->sec.auth_mode;
7753 break;
7754
7755 case IW_AUTH_WPA_ENABLED:
7756 param->value = ieee->wpa_enabled;
7757 break;
7758
7759 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7760 param->value = ieee->ieee802_1x;
7761 break;
7762
7763 case IW_AUTH_ROAMING_CONTROL:
7764 case IW_AUTH_PRIVACY_INVOKED:
7765 param->value = ieee->privacy_invoked;
7766 break;
7767
7768 default:
7769 return -EOPNOTSUPP;
7770 }
7771 return 0;
7772 }
7773
7774 /* SIOCSIWENCODEEXT */
7775 static int ipw2100_wx_set_encodeext(struct net_device *dev,
7776 struct iw_request_info *info,
7777 union iwreq_data *wrqu, char *extra)
7778 {
7779 struct ipw2100_priv *priv = ieee80211_priv(dev);
7780 return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra);
7781 }
7782
7783 /* SIOCGIWENCODEEXT */
7784 static int ipw2100_wx_get_encodeext(struct net_device *dev,
7785 struct iw_request_info *info,
7786 union iwreq_data *wrqu, char *extra)
7787 {
7788 struct ipw2100_priv *priv = ieee80211_priv(dev);
7789 return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra);
7790 }
7791
7792 /* SIOCSIWMLME */
7793 static int ipw2100_wx_set_mlme(struct net_device *dev,
7794 struct iw_request_info *info,
7795 union iwreq_data *wrqu, char *extra)
7796 {
7797 struct ipw2100_priv *priv = ieee80211_priv(dev);
7798 struct iw_mlme *mlme = (struct iw_mlme *)extra;
7799 u16 reason;
7800
7801 reason = cpu_to_le16(mlme->reason_code);
7802
7803 switch (mlme->cmd) {
7804 case IW_MLME_DEAUTH:
7805 // silently ignore
7806 break;
7807
7808 case IW_MLME_DISASSOC:
7809 ipw2100_disassociate_bssid(priv);
7810 break;
7811
7812 default:
7813 return -EOPNOTSUPP;
7814 }
7815 return 0;
7816 }
7817
7818 /*
7819 *
7820 * IWPRIV handlers
7821 *
7822 */
7823 #ifdef CONFIG_IPW2100_MONITOR
7824 static int ipw2100_wx_set_promisc(struct net_device *dev,
7825 struct iw_request_info *info,
7826 union iwreq_data *wrqu, char *extra)
7827 {
7828 struct ipw2100_priv *priv = ieee80211_priv(dev);
7829 int *parms = (int *)extra;
7830 int enable = (parms[0] > 0);
7831 int err = 0;
7832
7833 mutex_lock(&priv->action_mutex);
7834 if (!(priv->status & STATUS_INITIALIZED)) {
7835 err = -EIO;
7836 goto done;
7837 }
7838
7839 if (enable) {
7840 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7841 err = ipw2100_set_channel(priv, parms[1], 0);
7842 goto done;
7843 }
7844 priv->channel = parms[1];
7845 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7846 } else {
7847 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
7848 err = ipw2100_switch_mode(priv, priv->last_mode);
7849 }
7850 done:
7851 mutex_unlock(&priv->action_mutex);
7852 return err;
7853 }
7854
7855 static int ipw2100_wx_reset(struct net_device *dev,
7856 struct iw_request_info *info,
7857 union iwreq_data *wrqu, char *extra)
7858 {
7859 struct ipw2100_priv *priv = ieee80211_priv(dev);
7860 if (priv->status & STATUS_INITIALIZED)
7861 schedule_reset(priv);
7862 return 0;
7863 }
7864
7865 #endif
7866
7867 static int ipw2100_wx_set_powermode(struct net_device *dev,
7868 struct iw_request_info *info,
7869 union iwreq_data *wrqu, char *extra)
7870 {
7871 struct ipw2100_priv *priv = ieee80211_priv(dev);
7872 int err = 0, mode = *(int *)extra;
7873
7874 mutex_lock(&priv->action_mutex);
7875 if (!(priv->status & STATUS_INITIALIZED)) {
7876 err = -EIO;
7877 goto done;
7878 }
7879
7880 if ((mode < 0) || (mode > POWER_MODES))
7881 mode = IPW_POWER_AUTO;
7882
7883 if (IPW_POWER_LEVEL(priv->power_mode) != mode)
7884 err = ipw2100_set_power_mode(priv, mode);
7885 done:
7886 mutex_unlock(&priv->action_mutex);
7887 return err;
7888 }
7889
7890 #define MAX_POWER_STRING 80
7891 static int ipw2100_wx_get_powermode(struct net_device *dev,
7892 struct iw_request_info *info,
7893 union iwreq_data *wrqu, char *extra)
7894 {
7895 /*
7896 * This can be called at any time. No action lock required
7897 */
7898
7899 struct ipw2100_priv *priv = ieee80211_priv(dev);
7900 int level = IPW_POWER_LEVEL(priv->power_mode);
7901 s32 timeout, period;
7902
7903 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7904 snprintf(extra, MAX_POWER_STRING,
7905 "Power save level: %d (Off)", level);
7906 } else {
7907 switch (level) {
7908 case IPW_POWER_MODE_CAM:
7909 snprintf(extra, MAX_POWER_STRING,
7910 "Power save level: %d (None)", level);
7911 break;
7912 case IPW_POWER_AUTO:
7913 snprintf(extra, MAX_POWER_STRING,
7914 "Power save level: %d (Auto)", level);
7915 break;
7916 default:
7917 timeout = timeout_duration[level - 1] / 1000;
7918 period = period_duration[level - 1] / 1000;
7919 snprintf(extra, MAX_POWER_STRING,
7920 "Power save level: %d "
7921 "(Timeout %dms, Period %dms)",
7922 level, timeout, period);
7923 }
7924 }
7925
7926 wrqu->data.length = strlen(extra) + 1;
7927
7928 return 0;
7929 }
7930
7931 static int ipw2100_wx_set_preamble(struct net_device *dev,
7932 struct iw_request_info *info,
7933 union iwreq_data *wrqu, char *extra)
7934 {
7935 struct ipw2100_priv *priv = ieee80211_priv(dev);
7936 int err, mode = *(int *)extra;
7937
7938 mutex_lock(&priv->action_mutex);
7939 if (!(priv->status & STATUS_INITIALIZED)) {
7940 err = -EIO;
7941 goto done;
7942 }
7943
7944 if (mode == 1)
7945 priv->config |= CFG_LONG_PREAMBLE;
7946 else if (mode == 0)
7947 priv->config &= ~CFG_LONG_PREAMBLE;
7948 else {
7949 err = -EINVAL;
7950 goto done;
7951 }
7952
7953 err = ipw2100_system_config(priv, 0);
7954
7955 done:
7956 mutex_unlock(&priv->action_mutex);
7957 return err;
7958 }
7959
7960 static int ipw2100_wx_get_preamble(struct net_device *dev,
7961 struct iw_request_info *info,
7962 union iwreq_data *wrqu, char *extra)
7963 {
7964 /*
7965 * This can be called at any time. No action lock required
7966 */
7967
7968 struct ipw2100_priv *priv = ieee80211_priv(dev);
7969
7970 if (priv->config & CFG_LONG_PREAMBLE)
7971 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
7972 else
7973 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
7974
7975 return 0;
7976 }
7977
7978 #ifdef CONFIG_IPW2100_MONITOR
7979 static int ipw2100_wx_set_crc_check(struct net_device *dev,
7980 struct iw_request_info *info,
7981 union iwreq_data *wrqu, char *extra)
7982 {
7983 struct ipw2100_priv *priv = ieee80211_priv(dev);
7984 int err, mode = *(int *)extra;
7985
7986 mutex_lock(&priv->action_mutex);
7987 if (!(priv->status & STATUS_INITIALIZED)) {
7988 err = -EIO;
7989 goto done;
7990 }
7991
7992 if (mode == 1)
7993 priv->config |= CFG_CRC_CHECK;
7994 else if (mode == 0)
7995 priv->config &= ~CFG_CRC_CHECK;
7996 else {
7997 err = -EINVAL;
7998 goto done;
7999 }
8000 err = 0;
8001
8002 done:
8003 mutex_unlock(&priv->action_mutex);
8004 return err;
8005 }
8006
8007 static int ipw2100_wx_get_crc_check(struct net_device *dev,
8008 struct iw_request_info *info,
8009 union iwreq_data *wrqu, char *extra)
8010 {
8011 /*
8012 * This can be called at any time. No action lock required
8013 */
8014
8015 struct ipw2100_priv *priv = ieee80211_priv(dev);
8016
8017 if (priv->config & CFG_CRC_CHECK)
8018 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
8019 else
8020 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
8021
8022 return 0;
8023 }
8024 #endif /* CONFIG_IPW2100_MONITOR */
8025
8026 static iw_handler ipw2100_wx_handlers[] = {
8027 NULL, /* SIOCSIWCOMMIT */
8028 ipw2100_wx_get_name, /* SIOCGIWNAME */
8029 NULL, /* SIOCSIWNWID */
8030 NULL, /* SIOCGIWNWID */
8031 ipw2100_wx_set_freq, /* SIOCSIWFREQ */
8032 ipw2100_wx_get_freq, /* SIOCGIWFREQ */
8033 ipw2100_wx_set_mode, /* SIOCSIWMODE */
8034 ipw2100_wx_get_mode, /* SIOCGIWMODE */
8035 NULL, /* SIOCSIWSENS */
8036 NULL, /* SIOCGIWSENS */
8037 NULL, /* SIOCSIWRANGE */
8038 ipw2100_wx_get_range, /* SIOCGIWRANGE */
8039 NULL, /* SIOCSIWPRIV */
8040 NULL, /* SIOCGIWPRIV */
8041 NULL, /* SIOCSIWSTATS */
8042 NULL, /* SIOCGIWSTATS */
8043 NULL, /* SIOCSIWSPY */
8044 NULL, /* SIOCGIWSPY */
8045 NULL, /* SIOCGIWTHRSPY */
8046 NULL, /* SIOCWIWTHRSPY */
8047 ipw2100_wx_set_wap, /* SIOCSIWAP */
8048 ipw2100_wx_get_wap, /* SIOCGIWAP */
8049 ipw2100_wx_set_mlme, /* SIOCSIWMLME */
8050 NULL, /* SIOCGIWAPLIST -- deprecated */
8051 ipw2100_wx_set_scan, /* SIOCSIWSCAN */
8052 ipw2100_wx_get_scan, /* SIOCGIWSCAN */
8053 ipw2100_wx_set_essid, /* SIOCSIWESSID */
8054 ipw2100_wx_get_essid, /* SIOCGIWESSID */
8055 ipw2100_wx_set_nick, /* SIOCSIWNICKN */
8056 ipw2100_wx_get_nick, /* SIOCGIWNICKN */
8057 NULL, /* -- hole -- */
8058 NULL, /* -- hole -- */
8059 ipw2100_wx_set_rate, /* SIOCSIWRATE */
8060 ipw2100_wx_get_rate, /* SIOCGIWRATE */
8061 ipw2100_wx_set_rts, /* SIOCSIWRTS */
8062 ipw2100_wx_get_rts, /* SIOCGIWRTS */
8063 ipw2100_wx_set_frag, /* SIOCSIWFRAG */
8064 ipw2100_wx_get_frag, /* SIOCGIWFRAG */
8065 ipw2100_wx_set_txpow, /* SIOCSIWTXPOW */
8066 ipw2100_wx_get_txpow, /* SIOCGIWTXPOW */
8067 ipw2100_wx_set_retry, /* SIOCSIWRETRY */
8068 ipw2100_wx_get_retry, /* SIOCGIWRETRY */
8069 ipw2100_wx_set_encode, /* SIOCSIWENCODE */
8070 ipw2100_wx_get_encode, /* SIOCGIWENCODE */
8071 ipw2100_wx_set_power, /* SIOCSIWPOWER */
8072 ipw2100_wx_get_power, /* SIOCGIWPOWER */
8073 NULL, /* -- hole -- */
8074 NULL, /* -- hole -- */
8075 ipw2100_wx_set_genie, /* SIOCSIWGENIE */
8076 ipw2100_wx_get_genie, /* SIOCGIWGENIE */
8077 ipw2100_wx_set_auth, /* SIOCSIWAUTH */
8078 ipw2100_wx_get_auth, /* SIOCGIWAUTH */
8079 ipw2100_wx_set_encodeext, /* SIOCSIWENCODEEXT */
8080 ipw2100_wx_get_encodeext, /* SIOCGIWENCODEEXT */
8081 NULL, /* SIOCSIWPMKSA */
8082 };
8083
8084 #define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV
8085 #define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1
8086 #define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2
8087 #define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3
8088 #define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4
8089 #define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5
8090 #define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6
8091 #define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7
8092
8093 static const struct iw_priv_args ipw2100_private_args[] = {
8094
8095 #ifdef CONFIG_IPW2100_MONITOR
8096 {
8097 IPW2100_PRIV_SET_MONITOR,
8098 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8099 {
8100 IPW2100_PRIV_RESET,
8101 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8102 #endif /* CONFIG_IPW2100_MONITOR */
8103
8104 {
8105 IPW2100_PRIV_SET_POWER,
8106 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8107 {
8108 IPW2100_PRIV_GET_POWER,
8109 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8110 "get_power"},
8111 {
8112 IPW2100_PRIV_SET_LONGPREAMBLE,
8113 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8114 {
8115 IPW2100_PRIV_GET_LONGPREAMBLE,
8116 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8117 #ifdef CONFIG_IPW2100_MONITOR
8118 {
8119 IPW2100_PRIV_SET_CRC_CHECK,
8120 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8121 {
8122 IPW2100_PRIV_GET_CRC_CHECK,
8123 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8124 #endif /* CONFIG_IPW2100_MONITOR */
8125 };
8126
8127 static iw_handler ipw2100_private_handler[] = {
8128 #ifdef CONFIG_IPW2100_MONITOR
8129 ipw2100_wx_set_promisc,
8130 ipw2100_wx_reset,
8131 #else /* CONFIG_IPW2100_MONITOR */
8132 NULL,
8133 NULL,
8134 #endif /* CONFIG_IPW2100_MONITOR */
8135 ipw2100_wx_set_powermode,
8136 ipw2100_wx_get_powermode,
8137 ipw2100_wx_set_preamble,
8138 ipw2100_wx_get_preamble,
8139 #ifdef CONFIG_IPW2100_MONITOR
8140 ipw2100_wx_set_crc_check,
8141 ipw2100_wx_get_crc_check,
8142 #else /* CONFIG_IPW2100_MONITOR */
8143 NULL,
8144 NULL,
8145 #endif /* CONFIG_IPW2100_MONITOR */
8146 };
8147
8148 /*
8149 * Get wireless statistics.
8150 * Called by /proc/net/wireless
8151 * Also called by SIOCGIWSTATS
8152 */
8153 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8154 {
8155 enum {
8156 POOR = 30,
8157 FAIR = 60,
8158 GOOD = 80,
8159 VERY_GOOD = 90,
8160 EXCELLENT = 95,
8161 PERFECT = 100
8162 };
8163 int rssi_qual;
8164 int tx_qual;
8165 int beacon_qual;
8166
8167 struct ipw2100_priv *priv = ieee80211_priv(dev);
8168 struct iw_statistics *wstats;
8169 u32 rssi, quality, tx_retries, missed_beacons, tx_failures;
8170 u32 ord_len = sizeof(u32);
8171
8172 if (!priv)
8173 return (struct iw_statistics *)NULL;
8174
8175 wstats = &priv->wstats;
8176
8177 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8178 * ipw2100_wx_wireless_stats seems to be called before fw is
8179 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
8180 * and associated; if not associcated, the values are all meaningless
8181 * anyway, so set them all to NULL and INVALID */
8182 if (!(priv->status & STATUS_ASSOCIATED)) {
8183 wstats->miss.beacon = 0;
8184 wstats->discard.retries = 0;
8185 wstats->qual.qual = 0;
8186 wstats->qual.level = 0;
8187 wstats->qual.noise = 0;
8188 wstats->qual.updated = 7;
8189 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8190 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8191 return wstats;
8192 }
8193
8194 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8195 &missed_beacons, &ord_len))
8196 goto fail_get_ordinal;
8197
8198 /* If we don't have a connection the quality and level is 0 */
8199 if (!(priv->status & STATUS_ASSOCIATED)) {
8200 wstats->qual.qual = 0;
8201 wstats->qual.level = 0;
8202 } else {
8203 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8204 &rssi, &ord_len))
8205 goto fail_get_ordinal;
8206 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8207 if (rssi < 10)
8208 rssi_qual = rssi * POOR / 10;
8209 else if (rssi < 15)
8210 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8211 else if (rssi < 20)
8212 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8213 else if (rssi < 30)
8214 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8215 10 + GOOD;
8216 else
8217 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8218 10 + VERY_GOOD;
8219
8220 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8221 &tx_retries, &ord_len))
8222 goto fail_get_ordinal;
8223
8224 if (tx_retries > 75)
8225 tx_qual = (90 - tx_retries) * POOR / 15;
8226 else if (tx_retries > 70)
8227 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8228 else if (tx_retries > 65)
8229 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8230 else if (tx_retries > 50)
8231 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8232 15 + GOOD;
8233 else
8234 tx_qual = (50 - tx_retries) *
8235 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8236
8237 if (missed_beacons > 50)
8238 beacon_qual = (60 - missed_beacons) * POOR / 10;
8239 else if (missed_beacons > 40)
8240 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8241 10 + POOR;
8242 else if (missed_beacons > 32)
8243 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8244 18 + FAIR;
8245 else if (missed_beacons > 20)
8246 beacon_qual = (32 - missed_beacons) *
8247 (VERY_GOOD - GOOD) / 20 + GOOD;
8248 else
8249 beacon_qual = (20 - missed_beacons) *
8250 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8251
8252 quality = min(beacon_qual, min(tx_qual, rssi_qual));
8253
8254 #ifdef CONFIG_IPW2100_DEBUG
8255 if (beacon_qual == quality)
8256 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8257 else if (tx_qual == quality)
8258 IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8259 else if (quality != 100)
8260 IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8261 else
8262 IPW_DEBUG_WX("Quality not clamped.\n");
8263 #endif
8264
8265 wstats->qual.qual = quality;
8266 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8267 }
8268
8269 wstats->qual.noise = 0;
8270 wstats->qual.updated = 7;
8271 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8272
8273 /* FIXME: this is percent and not a # */
8274 wstats->miss.beacon = missed_beacons;
8275
8276 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8277 &tx_failures, &ord_len))
8278 goto fail_get_ordinal;
8279 wstats->discard.retries = tx_failures;
8280
8281 return wstats;
8282
8283 fail_get_ordinal:
8284 IPW_DEBUG_WX("failed querying ordinals.\n");
8285
8286 return (struct iw_statistics *)NULL;
8287 }
8288
8289 static struct iw_handler_def ipw2100_wx_handler_def = {
8290 .standard = ipw2100_wx_handlers,
8291 .num_standard = ARRAY_SIZE(ipw2100_wx_handlers),
8292 .num_private = ARRAY_SIZE(ipw2100_private_handler),
8293 .num_private_args = ARRAY_SIZE(ipw2100_private_args),
8294 .private = (iw_handler *) ipw2100_private_handler,
8295 .private_args = (struct iw_priv_args *)ipw2100_private_args,
8296 .get_wireless_stats = ipw2100_wx_wireless_stats,
8297 };
8298
8299 static void ipw2100_wx_event_work(struct work_struct *work)
8300 {
8301 struct ipw2100_priv *priv =
8302 container_of(work, struct ipw2100_priv, wx_event_work.work);
8303 union iwreq_data wrqu;
8304 int len = ETH_ALEN;
8305
8306 if (priv->status & STATUS_STOPPING)
8307 return;
8308
8309 mutex_lock(&priv->action_mutex);
8310
8311 IPW_DEBUG_WX("enter\n");
8312
8313 mutex_unlock(&priv->action_mutex);
8314
8315 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8316
8317 /* Fetch BSSID from the hardware */
8318 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8319 priv->status & STATUS_RF_KILL_MASK ||
8320 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8321 &priv->bssid, &len)) {
8322 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
8323 } else {
8324 /* We now have the BSSID, so can finish setting to the full
8325 * associated state */
8326 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8327 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8328 priv->status &= ~STATUS_ASSOCIATING;
8329 priv->status |= STATUS_ASSOCIATED;
8330 netif_carrier_on(priv->net_dev);
8331 netif_wake_queue(priv->net_dev);
8332 }
8333
8334 if (!(priv->status & STATUS_ASSOCIATED)) {
8335 IPW_DEBUG_WX("Configuring ESSID\n");
8336 mutex_lock(&priv->action_mutex);
8337 /* This is a disassociation event, so kick the firmware to
8338 * look for another AP */
8339 if (priv->config & CFG_STATIC_ESSID)
8340 ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8341 0);
8342 else
8343 ipw2100_set_essid(priv, NULL, 0, 0);
8344 mutex_unlock(&priv->action_mutex);
8345 }
8346
8347 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8348 }
8349
8350 #define IPW2100_FW_MAJOR_VERSION 1
8351 #define IPW2100_FW_MINOR_VERSION 3
8352
8353 #define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8354 #define IPW2100_FW_MAJOR(x) (x & 0xff)
8355
8356 #define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8357 IPW2100_FW_MAJOR_VERSION)
8358
8359 #define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8360 "." __stringify(IPW2100_FW_MINOR_VERSION)
8361
8362 #define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8363
8364 /*
8365
8366 BINARY FIRMWARE HEADER FORMAT
8367
8368 offset length desc
8369 0 2 version
8370 2 2 mode == 0:BSS,1:IBSS,2:MONITOR
8371 4 4 fw_len
8372 8 4 uc_len
8373 C fw_len firmware data
8374 12 + fw_len uc_len microcode data
8375
8376 */
8377
8378 struct ipw2100_fw_header {
8379 short version;
8380 short mode;
8381 unsigned int fw_size;
8382 unsigned int uc_size;
8383 } __attribute__ ((packed));
8384
8385 static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8386 {
8387 struct ipw2100_fw_header *h =
8388 (struct ipw2100_fw_header *)fw->fw_entry->data;
8389
8390 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8391 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8392 "(detected version id of %u). "
8393 "See Documentation/networking/README.ipw2100\n",
8394 h->version);
8395 return 1;
8396 }
8397
8398 fw->version = h->version;
8399 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8400 fw->fw.size = h->fw_size;
8401 fw->uc.data = fw->fw.data + h->fw_size;
8402 fw->uc.size = h->uc_size;
8403
8404 return 0;
8405 }
8406
8407 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8408 struct ipw2100_fw *fw)
8409 {
8410 char *fw_name;
8411 int rc;
8412
8413 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8414 priv->net_dev->name);
8415
8416 switch (priv->ieee->iw_mode) {
8417 case IW_MODE_ADHOC:
8418 fw_name = IPW2100_FW_NAME("-i");
8419 break;
8420 #ifdef CONFIG_IPW2100_MONITOR
8421 case IW_MODE_MONITOR:
8422 fw_name = IPW2100_FW_NAME("-p");
8423 break;
8424 #endif
8425 case IW_MODE_INFRA:
8426 default:
8427 fw_name = IPW2100_FW_NAME("");
8428 break;
8429 }
8430
8431 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8432
8433 if (rc < 0) {
8434 printk(KERN_ERR DRV_NAME ": "
8435 "%s: Firmware '%s' not available or load failed.\n",
8436 priv->net_dev->name, fw_name);
8437 return rc;
8438 }
8439 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8440 fw->fw_entry->size);
8441
8442 ipw2100_mod_firmware_load(fw);
8443
8444 return 0;
8445 }
8446
8447 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8448 struct ipw2100_fw *fw)
8449 {
8450 fw->version = 0;
8451 if (fw->fw_entry)
8452 release_firmware(fw->fw_entry);
8453 fw->fw_entry = NULL;
8454 }
8455
8456 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8457 size_t max)
8458 {
8459 char ver[MAX_FW_VERSION_LEN];
8460 u32 len = MAX_FW_VERSION_LEN;
8461 u32 tmp;
8462 int i;
8463 /* firmware version is an ascii string (max len of 14) */
8464 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8465 return -EIO;
8466 tmp = max;
8467 if (len >= max)
8468 len = max - 1;
8469 for (i = 0; i < len; i++)
8470 buf[i] = ver[i];
8471 buf[i] = '\0';
8472 return tmp;
8473 }
8474
8475 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8476 size_t max)
8477 {
8478 u32 ver;
8479 u32 len = sizeof(ver);
8480 /* microcode version is a 32 bit integer */
8481 if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8482 return -EIO;
8483 return snprintf(buf, max, "%08X", ver);
8484 }
8485
8486 /*
8487 * On exit, the firmware will have been freed from the fw list
8488 */
8489 static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8490 {
8491 /* firmware is constructed of N contiguous entries, each entry is
8492 * structured as:
8493 *
8494 * offset sie desc
8495 * 0 4 address to write to
8496 * 4 2 length of data run
8497 * 6 length data
8498 */
8499 unsigned int addr;
8500 unsigned short len;
8501
8502 const unsigned char *firmware_data = fw->fw.data;
8503 unsigned int firmware_data_left = fw->fw.size;
8504
8505 while (firmware_data_left > 0) {
8506 addr = *(u32 *) (firmware_data);
8507 firmware_data += 4;
8508 firmware_data_left -= 4;
8509
8510 len = *(u16 *) (firmware_data);
8511 firmware_data += 2;
8512 firmware_data_left -= 2;
8513
8514 if (len > 32) {
8515 printk(KERN_ERR DRV_NAME ": "
8516 "Invalid firmware run-length of %d bytes\n",
8517 len);
8518 return -EINVAL;
8519 }
8520
8521 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8522 firmware_data += len;
8523 firmware_data_left -= len;
8524 }
8525
8526 return 0;
8527 }
8528
8529 struct symbol_alive_response {
8530 u8 cmd_id;
8531 u8 seq_num;
8532 u8 ucode_rev;
8533 u8 eeprom_valid;
8534 u16 valid_flags;
8535 u8 IEEE_addr[6];
8536 u16 flags;
8537 u16 pcb_rev;
8538 u16 clock_settle_time; // 1us LSB
8539 u16 powerup_settle_time; // 1us LSB
8540 u16 hop_settle_time; // 1us LSB
8541 u8 date[3]; // month, day, year
8542 u8 time[2]; // hours, minutes
8543 u8 ucode_valid;
8544 };
8545
8546 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8547 struct ipw2100_fw *fw)
8548 {
8549 struct net_device *dev = priv->net_dev;
8550 const unsigned char *microcode_data = fw->uc.data;
8551 unsigned int microcode_data_left = fw->uc.size;
8552 void __iomem *reg = (void __iomem *)dev->base_addr;
8553
8554 struct symbol_alive_response response;
8555 int i, j;
8556 u8 data;
8557
8558 /* Symbol control */
8559 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8560 readl(reg);
8561 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8562 readl(reg);
8563
8564 /* HW config */
8565 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8566 readl(reg);
8567 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8568 readl(reg);
8569
8570 /* EN_CS_ACCESS bit to reset control store pointer */
8571 write_nic_byte(dev, 0x210000, 0x40);
8572 readl(reg);
8573 write_nic_byte(dev, 0x210000, 0x0);
8574 readl(reg);
8575 write_nic_byte(dev, 0x210000, 0x40);
8576 readl(reg);
8577
8578 /* copy microcode from buffer into Symbol */
8579
8580 while (microcode_data_left > 0) {
8581 write_nic_byte(dev, 0x210010, *microcode_data++);
8582 write_nic_byte(dev, 0x210010, *microcode_data++);
8583 microcode_data_left -= 2;
8584 }
8585
8586 /* EN_CS_ACCESS bit to reset the control store pointer */
8587 write_nic_byte(dev, 0x210000, 0x0);
8588 readl(reg);
8589
8590 /* Enable System (Reg 0)
8591 * first enable causes garbage in RX FIFO */
8592 write_nic_byte(dev, 0x210000, 0x0);
8593 readl(reg);
8594 write_nic_byte(dev, 0x210000, 0x80);
8595 readl(reg);
8596
8597 /* Reset External Baseband Reg */
8598 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8599 readl(reg);
8600 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8601 readl(reg);
8602
8603 /* HW Config (Reg 5) */
8604 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8605 readl(reg);
8606 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8607 readl(reg);
8608
8609 /* Enable System (Reg 0)
8610 * second enable should be OK */
8611 write_nic_byte(dev, 0x210000, 0x00); // clear enable system
8612 readl(reg);
8613 write_nic_byte(dev, 0x210000, 0x80); // set enable system
8614
8615 /* check Symbol is enabled - upped this from 5 as it wasn't always
8616 * catching the update */
8617 for (i = 0; i < 10; i++) {
8618 udelay(10);
8619
8620 /* check Dino is enabled bit */
8621 read_nic_byte(dev, 0x210000, &data);
8622 if (data & 0x1)
8623 break;
8624 }
8625
8626 if (i == 10) {
8627 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8628 dev->name);
8629 return -EIO;
8630 }
8631
8632 /* Get Symbol alive response */
8633 for (i = 0; i < 30; i++) {
8634 /* Read alive response structure */
8635 for (j = 0;
8636 j < (sizeof(struct symbol_alive_response) >> 1); j++)
8637 read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8638
8639 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8640 break;
8641 udelay(10);
8642 }
8643
8644 if (i == 30) {
8645 printk(KERN_ERR DRV_NAME
8646 ": %s: No response from Symbol - hw not alive\n",
8647 dev->name);
8648 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8649 return -EIO;
8650 }
8651
8652 return 0;
8653 }
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