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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / wireless / intel / ipw2x00 / ipw2100.c
blob536cd729c0860d68cdd44fb67c85282babac89ec
1 // SPDX-License-Identifier: GPL-2.0-only
2 /******************************************************************************
3
4 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
5
6
7 Contact Information:
8 Intel Linux Wireless <ilw@linux.intel.com>
9 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
10
11 Portions of this file are based on the sample_* files provided by Wireless
12 Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes
13 <jt@hpl.hp.com>
14
15 Portions of this file are based on the Host AP project,
16 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
17 <j@w1.fi>
18 Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
19
20 Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and
21 ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c
22 available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox
23
24 ******************************************************************************/
25 /*
26
27 Initial driver on which this is based was developed by Janusz Gorycki,
28 Maciej Urbaniak, and Maciej Sosnowski.
29
30 Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak.
31
32 Theory of Operation
33
34 Tx - Commands and Data
35
36 Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs)
37 Each TBD contains a pointer to the physical (dma_addr_t) address of data being
38 sent to the firmware as well as the length of the data.
39
40 The host writes to the TBD queue at the WRITE index. The WRITE index points
41 to the _next_ packet to be written and is advanced when after the TBD has been
42 filled.
43
44 The firmware pulls from the TBD queue at the READ index. The READ index points
45 to the currently being read entry, and is advanced once the firmware is
46 done with a packet.
47
48 When data is sent to the firmware, the first TBD is used to indicate to the
49 firmware if a Command or Data is being sent. If it is Command, all of the
50 command information is contained within the physical address referred to by the
51 TBD. If it is Data, the first TBD indicates the type of data packet, number
52 of fragments, etc. The next TBD then refers to the actual packet location.
53
54 The Tx flow cycle is as follows:
55
56 1) ipw2100_tx() is called by kernel with SKB to transmit
57 2) Packet is move from the tx_free_list and appended to the transmit pending
58 list (tx_pend_list)
59 3) work is scheduled to move pending packets into the shared circular queue.
60 4) when placing packet in the circular queue, the incoming SKB is DMA mapped
61 to a physical address. That address is entered into a TBD. Two TBDs are
62 filled out. The first indicating a data packet, the second referring to the
63 actual payload data.
64 5) the packet is removed from tx_pend_list and placed on the end of the
65 firmware pending list (fw_pend_list)
66 6) firmware is notified that the WRITE index has
67 7) Once the firmware has processed the TBD, INTA is triggered.
68 8) For each Tx interrupt received from the firmware, the READ index is checked
69 to see which TBDs are done being processed.
70 9) For each TBD that has been processed, the ISR pulls the oldest packet
71 from the fw_pend_list.
72 10)The packet structure contained in the fw_pend_list is then used
73 to unmap the DMA address and to free the SKB originally passed to the driver
74 from the kernel.
75 11)The packet structure is placed onto the tx_free_list
76
77 The above steps are the same for commands, only the msg_free_list/msg_pend_list
78 are used instead of tx_free_list/tx_pend_list
79
80 ...
81
82 Critical Sections / Locking :
83
84 There are two locks utilized. The first is the low level lock (priv->low_lock)
85 that protects the following:
86
87 - Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows:
88
89 tx_free_list : Holds pre-allocated Tx buffers.
90 TAIL modified in __ipw2100_tx_process()
91 HEAD modified in ipw2100_tx()
92
93 tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring
94 TAIL modified ipw2100_tx()
95 HEAD modified by ipw2100_tx_send_data()
96
97 msg_free_list : Holds pre-allocated Msg (Command) buffers
98 TAIL modified in __ipw2100_tx_process()
99 HEAD modified in ipw2100_hw_send_command()
100
101 msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring
102 TAIL modified in ipw2100_hw_send_command()
103 HEAD modified in ipw2100_tx_send_commands()
104
105 The flow of data on the TX side is as follows:
106
107 MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST
108 TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST
109
110 The methods that work on the TBD ring are protected via priv->low_lock.
111
112 - The internal data state of the device itself
113 - Access to the firmware read/write indexes for the BD queues
114 and associated logic
115
116 All external entry functions are locked with the priv->action_lock to ensure
117 that only one external action is invoked at a time.
118
119
120 */
121
122 #include <linux/compiler.h>
123 #include <linux/errno.h>
124 #include <linux/if_arp.h>
125 #include <linux/in6.h>
126 #include <linux/in.h>
127 #include <linux/ip.h>
128 #include <linux/kernel.h>
129 #include <linux/kmod.h>
130 #include <linux/module.h>
131 #include <linux/netdevice.h>
132 #include <linux/ethtool.h>
133 #include <linux/pci.h>
134 #include <linux/dma-mapping.h>
135 #include <linux/proc_fs.h>
136 #include <linux/skbuff.h>
137 #include <linux/uaccess.h>
138 #include <asm/io.h>
139 #include <linux/fs.h>
140 #include <linux/mm.h>
141 #include <linux/slab.h>
142 #include <linux/unistd.h>
143 #include <linux/stringify.h>
144 #include <linux/tcp.h>
145 #include <linux/types.h>
146 #include <linux/time.h>
147 #include <linux/firmware.h>
148 #include <linux/acpi.h>
149 #include <linux/ctype.h>
150 #include <linux/pm_qos.h>
151
152 #include <net/lib80211.h>
153
154 #include "ipw2100.h"
155 #include "ipw.h"
156
157 #define IPW2100_VERSION "git-1.2.2"
158
159 #define DRV_NAME "ipw2100"
160 #define DRV_VERSION IPW2100_VERSION
161 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
162 #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
163
164 static struct pm_qos_request ipw2100_pm_qos_req;
165
166 /* Debugging stuff */
167 #ifdef CONFIG_IPW2100_DEBUG
168 #define IPW2100_RX_DEBUG /* Reception debugging */
169 #endif
170
171 MODULE_DESCRIPTION(DRV_DESCRIPTION);
172 MODULE_VERSION(DRV_VERSION);
173 MODULE_AUTHOR(DRV_COPYRIGHT);
174 MODULE_LICENSE("GPL");
175
176 static int debug = 0;
177 static int network_mode = 0;
178 static int channel = 0;
179 static int associate = 0;
180 static int disable = 0;
181 #ifdef CONFIG_PM
182 static struct ipw2100_fw ipw2100_firmware;
183 #endif
184
185 #include <linux/moduleparam.h>
186 module_param(debug, int, 0444);
187 module_param_named(mode, network_mode, int, 0444);
188 module_param(channel, int, 0444);
189 module_param(associate, int, 0444);
190 module_param(disable, int, 0444);
191
192 MODULE_PARM_DESC(debug, "debug level");
193 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
194 MODULE_PARM_DESC(channel, "channel");
195 MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
196 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
197
198 static u32 ipw2100_debug_level = IPW_DL_NONE;
199
200 #ifdef CONFIG_IPW2100_DEBUG
201 #define IPW_DEBUG(level, message...) \
202 do { \
203 if (ipw2100_debug_level & (level)) { \
204 printk(KERN_DEBUG "ipw2100: %c %s ", \
205 in_interrupt() ? 'I' : 'U', __func__); \
206 printk(message); \
207 } \
208 } while (0)
209 #else
210 #define IPW_DEBUG(level, message...) do {} while (0)
211 #endif /* CONFIG_IPW2100_DEBUG */
212
213 #ifdef CONFIG_IPW2100_DEBUG
214 static const char *command_types[] = {
215 "undefined",
216 "unused", /* HOST_ATTENTION */
217 "HOST_COMPLETE",
218 "unused", /* SLEEP */
219 "unused", /* HOST_POWER_DOWN */
220 "unused",
221 "SYSTEM_CONFIG",
222 "unused", /* SET_IMR */
223 "SSID",
224 "MANDATORY_BSSID",
225 "AUTHENTICATION_TYPE",
226 "ADAPTER_ADDRESS",
227 "PORT_TYPE",
228 "INTERNATIONAL_MODE",
229 "CHANNEL",
230 "RTS_THRESHOLD",
231 "FRAG_THRESHOLD",
232 "POWER_MODE",
233 "TX_RATES",
234 "BASIC_TX_RATES",
235 "WEP_KEY_INFO",
236 "unused",
237 "unused",
238 "unused",
239 "unused",
240 "WEP_KEY_INDEX",
241 "WEP_FLAGS",
242 "ADD_MULTICAST",
243 "CLEAR_ALL_MULTICAST",
244 "BEACON_INTERVAL",
245 "ATIM_WINDOW",
246 "CLEAR_STATISTICS",
247 "undefined",
248 "undefined",
249 "undefined",
250 "undefined",
251 "TX_POWER_INDEX",
252 "undefined",
253 "undefined",
254 "undefined",
255 "undefined",
256 "undefined",
257 "undefined",
258 "BROADCAST_SCAN",
259 "CARD_DISABLE",
260 "PREFERRED_BSSID",
261 "SET_SCAN_OPTIONS",
262 "SCAN_DWELL_TIME",
263 "SWEEP_TABLE",
264 "AP_OR_STATION_TABLE",
265 "GROUP_ORDINALS",
266 "SHORT_RETRY_LIMIT",
267 "LONG_RETRY_LIMIT",
268 "unused", /* SAVE_CALIBRATION */
269 "unused", /* RESTORE_CALIBRATION */
270 "undefined",
271 "undefined",
272 "undefined",
273 "HOST_PRE_POWER_DOWN",
274 "unused", /* HOST_INTERRUPT_COALESCING */
275 "undefined",
276 "CARD_DISABLE_PHY_OFF",
277 "MSDU_TX_RATES",
278 "undefined",
279 "SET_STATION_STAT_BITS",
280 "CLEAR_STATIONS_STAT_BITS",
281 "LEAP_ROGUE_MODE",
282 "SET_SECURITY_INFORMATION",
283 "DISASSOCIATION_BSSID",
284 "SET_WPA_ASS_IE"
285 };
286 #endif
287
288 static const long ipw2100_frequencies[] = {
289 2412, 2417, 2422, 2427,
290 2432, 2437, 2442, 2447,
291 2452, 2457, 2462, 2467,
292 2472, 2484
293 };
294
295 #define FREQ_COUNT ARRAY_SIZE(ipw2100_frequencies)
296
297 static struct ieee80211_rate ipw2100_bg_rates[] = {
298 { .bitrate = 10 },
299 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
300 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
301 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
302 };
303
304 #define RATE_COUNT ARRAY_SIZE(ipw2100_bg_rates)
305
306 /* Pre-decl until we get the code solid and then we can clean it up */
307 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
308 static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
309 static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
310
311 static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
312 static void ipw2100_queues_free(struct ipw2100_priv *priv);
313 static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
314
315 static int ipw2100_fw_download(struct ipw2100_priv *priv,
316 struct ipw2100_fw *fw);
317 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
318 struct ipw2100_fw *fw);
319 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
320 size_t max);
321 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
322 size_t max);
323 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
324 struct ipw2100_fw *fw);
325 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
326 struct ipw2100_fw *fw);
327 static void ipw2100_wx_event_work(struct work_struct *work);
328 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
329 static const struct iw_handler_def ipw2100_wx_handler_def;
330
331 static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
332 {
333 struct ipw2100_priv *priv = libipw_priv(dev);
334
335 *val = ioread32(priv->ioaddr + reg);
336 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
337 }
338
339 static inline void write_register(struct net_device *dev, u32 reg, u32 val)
340 {
341 struct ipw2100_priv *priv = libipw_priv(dev);
342
343 iowrite32(val, priv->ioaddr + reg);
344 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
345 }
346
347 static inline void read_register_word(struct net_device *dev, u32 reg,
348 u16 * val)
349 {
350 struct ipw2100_priv *priv = libipw_priv(dev);
351
352 *val = ioread16(priv->ioaddr + reg);
353 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
354 }
355
356 static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
357 {
358 struct ipw2100_priv *priv = libipw_priv(dev);
359
360 *val = ioread8(priv->ioaddr + reg);
361 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
362 }
363
364 static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
365 {
366 struct ipw2100_priv *priv = libipw_priv(dev);
367
368 iowrite16(val, priv->ioaddr + reg);
369 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
370 }
371
372 static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
373 {
374 struct ipw2100_priv *priv = libipw_priv(dev);
375
376 iowrite8(val, priv->ioaddr + reg);
377 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
378 }
379
380 static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
381 {
382 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
383 addr & IPW_REG_INDIRECT_ADDR_MASK);
384 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
385 }
386
387 static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
388 {
389 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
390 addr & IPW_REG_INDIRECT_ADDR_MASK);
391 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
392 }
393
394 static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
395 {
396 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
397 addr & IPW_REG_INDIRECT_ADDR_MASK);
398 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
399 }
400
401 static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
402 {
403 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
404 addr & IPW_REG_INDIRECT_ADDR_MASK);
405 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
406 }
407
408 static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
409 {
410 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
411 addr & IPW_REG_INDIRECT_ADDR_MASK);
412 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
413 }
414
415 static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
416 {
417 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
418 addr & IPW_REG_INDIRECT_ADDR_MASK);
419 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
420 }
421
422 static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
423 {
424 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
425 addr & IPW_REG_INDIRECT_ADDR_MASK);
426 }
427
428 static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
429 {
430 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
431 }
432
433 static void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
434 const u8 * buf)
435 {
436 u32 aligned_addr;
437 u32 aligned_len;
438 u32 dif_len;
439 u32 i;
440
441 /* read first nibble byte by byte */
442 aligned_addr = addr & (~0x3);
443 dif_len = addr - aligned_addr;
444 if (dif_len) {
445 /* Start reading at aligned_addr + dif_len */
446 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
447 aligned_addr);
448 for (i = dif_len; i < 4; i++, buf++)
449 write_register_byte(dev,
450 IPW_REG_INDIRECT_ACCESS_DATA + i,
451 *buf);
452
453 len -= dif_len;
454 aligned_addr += 4;
455 }
456
457 /* read DWs through autoincrement registers */
458 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
459 aligned_len = len & (~0x3);
460 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
461 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
462
463 /* copy the last nibble */
464 dif_len = len - aligned_len;
465 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
466 for (i = 0; i < dif_len; i++, buf++)
467 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
468 *buf);
469 }
470
471 static void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
472 u8 * buf)
473 {
474 u32 aligned_addr;
475 u32 aligned_len;
476 u32 dif_len;
477 u32 i;
478
479 /* read first nibble byte by byte */
480 aligned_addr = addr & (~0x3);
481 dif_len = addr - aligned_addr;
482 if (dif_len) {
483 /* Start reading at aligned_addr + dif_len */
484 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
485 aligned_addr);
486 for (i = dif_len; i < 4; i++, buf++)
487 read_register_byte(dev,
488 IPW_REG_INDIRECT_ACCESS_DATA + i,
489 buf);
490
491 len -= dif_len;
492 aligned_addr += 4;
493 }
494
495 /* read DWs through autoincrement registers */
496 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
497 aligned_len = len & (~0x3);
498 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
499 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
500
501 /* copy the last nibble */
502 dif_len = len - aligned_len;
503 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
504 for (i = 0; i < dif_len; i++, buf++)
505 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
506 }
507
508 static bool ipw2100_hw_is_adapter_in_system(struct net_device *dev)
509 {
510 u32 dbg;
511
512 read_register(dev, IPW_REG_DOA_DEBUG_AREA_START, &dbg);
513
514 return dbg == IPW_DATA_DOA_DEBUG_VALUE;
515 }
516
517 static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
518 void *val, u32 * len)
519 {
520 struct ipw2100_ordinals *ordinals = &priv->ordinals;
521 u32 addr;
522 u32 field_info;
523 u16 field_len;
524 u16 field_count;
525 u32 total_length;
526
527 if (ordinals->table1_addr == 0) {
528 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
529 "before they have been loaded.\n");
530 return -EINVAL;
531 }
532
533 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
534 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
535 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
536
537 printk(KERN_WARNING DRV_NAME
538 ": ordinal buffer length too small, need %zd\n",
539 IPW_ORD_TAB_1_ENTRY_SIZE);
540
541 return -EINVAL;
542 }
543
544 read_nic_dword(priv->net_dev,
545 ordinals->table1_addr + (ord << 2), &addr);
546 read_nic_dword(priv->net_dev, addr, val);
547
548 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
549
550 return 0;
551 }
552
553 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
554
555 ord -= IPW_START_ORD_TAB_2;
556
557 /* get the address of statistic */
558 read_nic_dword(priv->net_dev,
559 ordinals->table2_addr + (ord << 3), &addr);
560
561 /* get the second DW of statistics ;
562 * two 16-bit words - first is length, second is count */
563 read_nic_dword(priv->net_dev,
564 ordinals->table2_addr + (ord << 3) + sizeof(u32),
565 &field_info);
566
567 /* get each entry length */
568 field_len = *((u16 *) & field_info);
569
570 /* get number of entries */
571 field_count = *(((u16 *) & field_info) + 1);
572
573 /* abort if no enough memory */
574 total_length = field_len * field_count;
575 if (total_length > *len) {
576 *len = total_length;
577 return -EINVAL;
578 }
579
580 *len = total_length;
581 if (!total_length)
582 return 0;
583
584 /* read the ordinal data from the SRAM */
585 read_nic_memory(priv->net_dev, addr, total_length, val);
586
587 return 0;
588 }
589
590 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
591 "in table 2\n", ord);
592
593 return -EINVAL;
594 }
595
596 static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
597 u32 * len)
598 {
599 struct ipw2100_ordinals *ordinals = &priv->ordinals;
600 u32 addr;
601
602 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
603 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
604 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
605 IPW_DEBUG_INFO("wrong size\n");
606 return -EINVAL;
607 }
608
609 read_nic_dword(priv->net_dev,
610 ordinals->table1_addr + (ord << 2), &addr);
611
612 write_nic_dword(priv->net_dev, addr, *val);
613
614 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
615
616 return 0;
617 }
618
619 IPW_DEBUG_INFO("wrong table\n");
620 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
621 return -EINVAL;
622
623 return -EINVAL;
624 }
625
626 static char *snprint_line(char *buf, size_t count,
627 const u8 * data, u32 len, u32 ofs)
628 {
629 int out, i, j, l;
630 char c;
631
632 out = snprintf(buf, count, "%08X", ofs);
633
634 for (l = 0, i = 0; i < 2; i++) {
635 out += snprintf(buf + out, count - out, " ");
636 for (j = 0; j < 8 && l < len; j++, l++)
637 out += snprintf(buf + out, count - out, "%02X ",
638 data[(i * 8 + j)]);
639 for (; j < 8; j++)
640 out += snprintf(buf + out, count - out, " ");
641 }
642
643 out += snprintf(buf + out, count - out, " ");
644 for (l = 0, i = 0; i < 2; i++) {
645 out += snprintf(buf + out, count - out, " ");
646 for (j = 0; j < 8 && l < len; j++, l++) {
647 c = data[(i * 8 + j)];
648 if (!isascii(c) || !isprint(c))
649 c = '.';
650
651 out += snprintf(buf + out, count - out, "%c", c);
652 }
653
654 for (; j < 8; j++)
655 out += snprintf(buf + out, count - out, " ");
656 }
657
658 return buf;
659 }
660
661 static void printk_buf(int level, const u8 * data, u32 len)
662 {
663 char line[81];
664 u32 ofs = 0;
665 if (!(ipw2100_debug_level & level))
666 return;
667
668 while (len) {
669 printk(KERN_DEBUG "%s\n",
670 snprint_line(line, sizeof(line), &data[ofs],
671 min(len, 16U), ofs));
672 ofs += 16;
673 len -= min(len, 16U);
674 }
675 }
676
677 #define MAX_RESET_BACKOFF 10
678
679 static void schedule_reset(struct ipw2100_priv *priv)
680 {
681 time64_t now = ktime_get_boottime_seconds();
682
683 /* If we haven't received a reset request within the backoff period,
684 * then we can reset the backoff interval so this reset occurs
685 * immediately */
686 if (priv->reset_backoff &&
687 (now - priv->last_reset > priv->reset_backoff))
688 priv->reset_backoff = 0;
689
690 priv->last_reset = now;
691
692 if (!(priv->status & STATUS_RESET_PENDING)) {
693 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%llds).\n",
694 priv->net_dev->name, priv->reset_backoff);
695 netif_carrier_off(priv->net_dev);
696 netif_stop_queue(priv->net_dev);
697 priv->status |= STATUS_RESET_PENDING;
698 if (priv->reset_backoff)
699 schedule_delayed_work(&priv->reset_work,
700 priv->reset_backoff * HZ);
701 else
702 schedule_delayed_work(&priv->reset_work, 0);
703
704 if (priv->reset_backoff < MAX_RESET_BACKOFF)
705 priv->reset_backoff++;
706
707 wake_up_interruptible(&priv->wait_command_queue);
708 } else
709 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
710 priv->net_dev->name);
711
712 }
713
714 #define HOST_COMPLETE_TIMEOUT (2 * HZ)
715 static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
716 struct host_command *cmd)
717 {
718 struct list_head *element;
719 struct ipw2100_tx_packet *packet;
720 unsigned long flags;
721 int err = 0;
722
723 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
724 command_types[cmd->host_command], cmd->host_command,
725 cmd->host_command_length);
726 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
727 cmd->host_command_length);
728
729 spin_lock_irqsave(&priv->low_lock, flags);
730
731 if (priv->fatal_error) {
732 IPW_DEBUG_INFO
733 ("Attempt to send command while hardware in fatal error condition.\n");
734 err = -EIO;
735 goto fail_unlock;
736 }
737
738 if (!(priv->status & STATUS_RUNNING)) {
739 IPW_DEBUG_INFO
740 ("Attempt to send command while hardware is not running.\n");
741 err = -EIO;
742 goto fail_unlock;
743 }
744
745 if (priv->status & STATUS_CMD_ACTIVE) {
746 IPW_DEBUG_INFO
747 ("Attempt to send command while another command is pending.\n");
748 err = -EBUSY;
749 goto fail_unlock;
750 }
751
752 if (list_empty(&priv->msg_free_list)) {
753 IPW_DEBUG_INFO("no available msg buffers\n");
754 goto fail_unlock;
755 }
756
757 priv->status |= STATUS_CMD_ACTIVE;
758 priv->messages_sent++;
759
760 element = priv->msg_free_list.next;
761
762 packet = list_entry(element, struct ipw2100_tx_packet, list);
763 packet->jiffy_start = jiffies;
764
765 /* initialize the firmware command packet */
766 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
767 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
768 packet->info.c_struct.cmd->host_command_len_reg =
769 cmd->host_command_length;
770 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
771
772 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
773 cmd->host_command_parameters,
774 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
775
776 list_del(element);
777 DEC_STAT(&priv->msg_free_stat);
778
779 list_add_tail(element, &priv->msg_pend_list);
780 INC_STAT(&priv->msg_pend_stat);
781
782 ipw2100_tx_send_commands(priv);
783 ipw2100_tx_send_data(priv);
784
785 spin_unlock_irqrestore(&priv->low_lock, flags);
786
787 /*
788 * We must wait for this command to complete before another
789 * command can be sent... but if we wait more than 3 seconds
790 * then there is a problem.
791 */
792
793 err =
794 wait_event_interruptible_timeout(priv->wait_command_queue,
795 !(priv->
796 status & STATUS_CMD_ACTIVE),
797 HOST_COMPLETE_TIMEOUT);
798
799 if (err == 0) {
800 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
801 1000 * (HOST_COMPLETE_TIMEOUT / HZ));
802 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
803 priv->status &= ~STATUS_CMD_ACTIVE;
804 schedule_reset(priv);
805 return -EIO;
806 }
807
808 if (priv->fatal_error) {
809 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
810 priv->net_dev->name);
811 return -EIO;
812 }
813
814 /* !!!!! HACK TEST !!!!!
815 * When lots of debug trace statements are enabled, the driver
816 * doesn't seem to have as many firmware restart cycles...
817 *
818 * As a test, we're sticking in a 1/100s delay here */
819 schedule_timeout_uninterruptible(msecs_to_jiffies(10));
820
821 return 0;
822
823 fail_unlock:
824 spin_unlock_irqrestore(&priv->low_lock, flags);
825
826 return err;
827 }
828
829 /*
830 * Verify the values and data access of the hardware
831 * No locks needed or used. No functions called.
832 */
833 static int ipw2100_verify(struct ipw2100_priv *priv)
834 {
835 u32 data1, data2;
836 u32 address;
837
838 u32 val1 = 0x76543210;
839 u32 val2 = 0xFEDCBA98;
840
841 /* Domain 0 check - all values should be DOA_DEBUG */
842 for (address = IPW_REG_DOA_DEBUG_AREA_START;
843 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
844 read_register(priv->net_dev, address, &data1);
845 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
846 return -EIO;
847 }
848
849 /* Domain 1 check - use arbitrary read/write compare */
850 for (address = 0; address < 5; address++) {
851 /* The memory area is not used now */
852 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
853 val1);
854 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
855 val2);
856 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
857 &data1);
858 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
859 &data2);
860 if (val1 == data1 && val2 == data2)
861 return 0;
862 }
863
864 return -EIO;
865 }
866
867 /*
868 *
869 * Loop until the CARD_DISABLED bit is the same value as the
870 * supplied parameter
871 *
872 * TODO: See if it would be more efficient to do a wait/wake
873 * cycle and have the completion event trigger the wakeup
874 *
875 */
876 #define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
877 static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
878 {
879 int i;
880 u32 card_state;
881 u32 len = sizeof(card_state);
882 int err;
883
884 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
885 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
886 &card_state, &len);
887 if (err) {
888 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
889 "failed.\n");
890 return 0;
891 }
892
893 /* We'll break out if either the HW state says it is
894 * in the state we want, or if HOST_COMPLETE command
895 * finishes */
896 if ((card_state == state) ||
897 ((priv->status & STATUS_ENABLED) ?
898 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
899 if (state == IPW_HW_STATE_ENABLED)
900 priv->status |= STATUS_ENABLED;
901 else
902 priv->status &= ~STATUS_ENABLED;
903
904 return 0;
905 }
906
907 udelay(50);
908 }
909
910 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
911 state ? "DISABLED" : "ENABLED");
912 return -EIO;
913 }
914
915 /*********************************************************************
916 Procedure : sw_reset_and_clock
917 Purpose : Asserts s/w reset, asserts clock initialization
918 and waits for clock stabilization
919 ********************************************************************/
920 static int sw_reset_and_clock(struct ipw2100_priv *priv)
921 {
922 int i;
923 u32 r;
924
925 // assert s/w reset
926 write_register(priv->net_dev, IPW_REG_RESET_REG,
927 IPW_AUX_HOST_RESET_REG_SW_RESET);
928
929 // wait for clock stabilization
930 for (i = 0; i < 1000; i++) {
931 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
932
933 // check clock ready bit
934 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
935 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
936 break;
937 }
938
939 if (i == 1000)
940 return -EIO; // TODO: better error value
941
942 /* set "initialization complete" bit to move adapter to
943 * D0 state */
944 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
945 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
946
947 /* wait for clock stabilization */
948 for (i = 0; i < 10000; i++) {
949 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
950
951 /* check clock ready bit */
952 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
953 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
954 break;
955 }
956
957 if (i == 10000)
958 return -EIO; /* TODO: better error value */
959
960 /* set D0 standby bit */
961 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
962 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
963 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
964
965 return 0;
966 }
967
968 /*********************************************************************
969 Procedure : ipw2100_download_firmware
970 Purpose : Initiaze adapter after power on.
971 The sequence is:
972 1. assert s/w reset first!
973 2. awake clocks & wait for clock stabilization
974 3. hold ARC (don't ask me why...)
975 4. load Dino ucode and reset/clock init again
976 5. zero-out shared mem
977 6. download f/w
978 *******************************************************************/
979 static int ipw2100_download_firmware(struct ipw2100_priv *priv)
980 {
981 u32 address;
982 int err;
983
984 #ifndef CONFIG_PM
985 /* Fetch the firmware and microcode */
986 struct ipw2100_fw ipw2100_firmware;
987 #endif
988
989 if (priv->fatal_error) {
990 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
991 "fatal error %d. Interface must be brought down.\n",
992 priv->net_dev->name, priv->fatal_error);
993 return -EINVAL;
994 }
995 #ifdef CONFIG_PM
996 if (!ipw2100_firmware.version) {
997 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
998 if (err) {
999 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1000 priv->net_dev->name, err);
1001 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1002 goto fail;
1003 }
1004 }
1005 #else
1006 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
1007 if (err) {
1008 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1009 priv->net_dev->name, err);
1010 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1011 goto fail;
1012 }
1013 #endif
1014 priv->firmware_version = ipw2100_firmware.version;
1015
1016 /* s/w reset and clock stabilization */
1017 err = sw_reset_and_clock(priv);
1018 if (err) {
1019 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1020 priv->net_dev->name, err);
1021 goto fail;
1022 }
1023
1024 err = ipw2100_verify(priv);
1025 if (err) {
1026 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1027 priv->net_dev->name, err);
1028 goto fail;
1029 }
1030
1031 /* Hold ARC */
1032 write_nic_dword(priv->net_dev,
1033 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1034
1035 /* allow ARC to run */
1036 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1037
1038 /* load microcode */
1039 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1040 if (err) {
1041 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1042 priv->net_dev->name, err);
1043 goto fail;
1044 }
1045
1046 /* release ARC */
1047 write_nic_dword(priv->net_dev,
1048 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1049
1050 /* s/w reset and clock stabilization (again!!!) */
1051 err = sw_reset_and_clock(priv);
1052 if (err) {
1053 printk(KERN_ERR DRV_NAME
1054 ": %s: sw_reset_and_clock failed: %d\n",
1055 priv->net_dev->name, err);
1056 goto fail;
1057 }
1058
1059 /* load f/w */
1060 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1061 if (err) {
1062 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1063 priv->net_dev->name, err);
1064 goto fail;
1065 }
1066 #ifndef CONFIG_PM
1067 /*
1068 * When the .resume method of the driver is called, the other
1069 * part of the system, i.e. the ide driver could still stay in
1070 * the suspend stage. This prevents us from loading the firmware
1071 * from the disk. --YZ
1072 */
1073
1074 /* free any storage allocated for firmware image */
1075 ipw2100_release_firmware(priv, &ipw2100_firmware);
1076 #endif
1077
1078 /* zero out Domain 1 area indirectly (Si requirement) */
1079 for (address = IPW_HOST_FW_SHARED_AREA0;
1080 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1081 write_nic_dword(priv->net_dev, address, 0);
1082 for (address = IPW_HOST_FW_SHARED_AREA1;
1083 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1084 write_nic_dword(priv->net_dev, address, 0);
1085 for (address = IPW_HOST_FW_SHARED_AREA2;
1086 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1087 write_nic_dword(priv->net_dev, address, 0);
1088 for (address = IPW_HOST_FW_SHARED_AREA3;
1089 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1090 write_nic_dword(priv->net_dev, address, 0);
1091 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1092 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1093 write_nic_dword(priv->net_dev, address, 0);
1094
1095 return 0;
1096
1097 fail:
1098 ipw2100_release_firmware(priv, &ipw2100_firmware);
1099 return err;
1100 }
1101
1102 static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1103 {
1104 if (priv->status & STATUS_INT_ENABLED)
1105 return;
1106 priv->status |= STATUS_INT_ENABLED;
1107 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1108 }
1109
1110 static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1111 {
1112 if (!(priv->status & STATUS_INT_ENABLED))
1113 return;
1114 priv->status &= ~STATUS_INT_ENABLED;
1115 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1116 }
1117
1118 static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1119 {
1120 struct ipw2100_ordinals *ord = &priv->ordinals;
1121
1122 IPW_DEBUG_INFO("enter\n");
1123
1124 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1125 &ord->table1_addr);
1126
1127 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1128 &ord->table2_addr);
1129
1130 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1131 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1132
1133 ord->table2_size &= 0x0000FFFF;
1134
1135 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1136 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1137 IPW_DEBUG_INFO("exit\n");
1138 }
1139
1140 static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1141 {
1142 u32 reg = 0;
1143 /*
1144 * Set GPIO 3 writable by FW; GPIO 1 writable
1145 * by driver and enable clock
1146 */
1147 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1148 IPW_BIT_GPIO_LED_OFF);
1149 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1150 }
1151
1152 static int rf_kill_active(struct ipw2100_priv *priv)
1153 {
1154 #define MAX_RF_KILL_CHECKS 5
1155 #define RF_KILL_CHECK_DELAY 40
1156
1157 unsigned short value = 0;
1158 u32 reg = 0;
1159 int i;
1160
1161 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1162 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1163 priv->status &= ~STATUS_RF_KILL_HW;
1164 return 0;
1165 }
1166
1167 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1168 udelay(RF_KILL_CHECK_DELAY);
1169 read_register(priv->net_dev, IPW_REG_GPIO, &reg);
1170 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1171 }
1172
1173 if (value == 0) {
1174 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1175 priv->status |= STATUS_RF_KILL_HW;
1176 } else {
1177 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1178 priv->status &= ~STATUS_RF_KILL_HW;
1179 }
1180
1181 return (value == 0);
1182 }
1183
1184 static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1185 {
1186 u32 addr, len;
1187 u32 val;
1188
1189 /*
1190 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1191 */
1192 len = sizeof(addr);
1193 if (ipw2100_get_ordinal
1194 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1195 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1196 __LINE__);
1197 return -EIO;
1198 }
1199
1200 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1201
1202 /*
1203 * EEPROM version is the byte at offset 0xfd in firmware
1204 * We read 4 bytes, then shift out the byte we actually want */
1205 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1206 priv->eeprom_version = (val >> 24) & 0xFF;
1207 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1208
1209 /*
1210 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1211 *
1212 * notice that the EEPROM bit is reverse polarity, i.e.
1213 * bit = 0 signifies HW RF kill switch is supported
1214 * bit = 1 signifies HW RF kill switch is NOT supported
1215 */
1216 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1217 if (!((val >> 24) & 0x01))
1218 priv->hw_features |= HW_FEATURE_RFKILL;
1219
1220 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1221 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1222
1223 return 0;
1224 }
1225
1226 /*
1227 * Start firmware execution after power on and initialization
1228 * The sequence is:
1229 * 1. Release ARC
1230 * 2. Wait for f/w initialization completes;
1231 */
1232 static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1233 {
1234 int i;
1235 u32 inta, inta_mask, gpio;
1236
1237 IPW_DEBUG_INFO("enter\n");
1238
1239 if (priv->status & STATUS_RUNNING)
1240 return 0;
1241
1242 /*
1243 * Initialize the hw - drive adapter to DO state by setting
1244 * init_done bit. Wait for clk_ready bit and Download
1245 * fw & dino ucode
1246 */
1247 if (ipw2100_download_firmware(priv)) {
1248 printk(KERN_ERR DRV_NAME
1249 ": %s: Failed to power on the adapter.\n",
1250 priv->net_dev->name);
1251 return -EIO;
1252 }
1253
1254 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1255 * in the firmware RBD and TBD ring queue */
1256 ipw2100_queues_initialize(priv);
1257
1258 ipw2100_hw_set_gpio(priv);
1259
1260 /* TODO -- Look at disabling interrupts here to make sure none
1261 * get fired during FW initialization */
1262
1263 /* Release ARC - clear reset bit */
1264 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1265
1266 /* wait for f/w initialization complete */
1267 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1268 i = 5000;
1269 do {
1270 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1271 /* Todo... wait for sync command ... */
1272
1273 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1274
1275 /* check "init done" bit */
1276 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1277 /* reset "init done" bit */
1278 write_register(priv->net_dev, IPW_REG_INTA,
1279 IPW2100_INTA_FW_INIT_DONE);
1280 break;
1281 }
1282
1283 /* check error conditions : we check these after the firmware
1284 * check so that if there is an error, the interrupt handler
1285 * will see it and the adapter will be reset */
1286 if (inta &
1287 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1288 /* clear error conditions */
1289 write_register(priv->net_dev, IPW_REG_INTA,
1290 IPW2100_INTA_FATAL_ERROR |
1291 IPW2100_INTA_PARITY_ERROR);
1292 }
1293 } while (--i);
1294
1295 /* Clear out any pending INTAs since we aren't supposed to have
1296 * interrupts enabled at this point... */
1297 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1298 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1299 inta &= IPW_INTERRUPT_MASK;
1300 /* Clear out any pending interrupts */
1301 if (inta & inta_mask)
1302 write_register(priv->net_dev, IPW_REG_INTA, inta);
1303
1304 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1305 i ? "SUCCESS" : "FAILED");
1306
1307 if (!i) {
1308 printk(KERN_WARNING DRV_NAME
1309 ": %s: Firmware did not initialize.\n",
1310 priv->net_dev->name);
1311 return -EIO;
1312 }
1313
1314 /* allow firmware to write to GPIO1 & GPIO3 */
1315 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1316
1317 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1318
1319 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1320
1321 /* Ready to receive commands */
1322 priv->status |= STATUS_RUNNING;
1323
1324 /* The adapter has been reset; we are not associated */
1325 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1326
1327 IPW_DEBUG_INFO("exit\n");
1328
1329 return 0;
1330 }
1331
1332 static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1333 {
1334 if (!priv->fatal_error)
1335 return;
1336
1337 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1338 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1339 priv->fatal_error = 0;
1340 }
1341
1342 /* NOTE: Our interrupt is disabled when this method is called */
1343 static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1344 {
1345 u32 reg;
1346 int i;
1347
1348 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1349
1350 ipw2100_hw_set_gpio(priv);
1351
1352 /* Step 1. Stop Master Assert */
1353 write_register(priv->net_dev, IPW_REG_RESET_REG,
1354 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1355
1356 /* Step 2. Wait for stop Master Assert
1357 * (not more than 50us, otherwise ret error */
1358 i = 5;
1359 do {
1360 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1361 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1362
1363 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1364 break;
1365 } while (--i);
1366
1367 priv->status &= ~STATUS_RESET_PENDING;
1368
1369 if (!i) {
1370 IPW_DEBUG_INFO
1371 ("exit - waited too long for master assert stop\n");
1372 return -EIO;
1373 }
1374
1375 write_register(priv->net_dev, IPW_REG_RESET_REG,
1376 IPW_AUX_HOST_RESET_REG_SW_RESET);
1377
1378 /* Reset any fatal_error conditions */
1379 ipw2100_reset_fatalerror(priv);
1380
1381 /* At this point, the adapter is now stopped and disabled */
1382 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1383 STATUS_ASSOCIATED | STATUS_ENABLED);
1384
1385 return 0;
1386 }
1387
1388 /*
1389 * Send the CARD_DISABLE_PHY_OFF command to the card to disable it
1390 *
1391 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1392 *
1393 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1394 * if STATUS_ASSN_LOST is sent.
1395 */
1396 static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1397 {
1398
1399 #define HW_PHY_OFF_LOOP_DELAY (msecs_to_jiffies(50))
1400
1401 struct host_command cmd = {
1402 .host_command = CARD_DISABLE_PHY_OFF,
1403 .host_command_sequence = 0,
1404 .host_command_length = 0,
1405 };
1406 int err, i;
1407 u32 val1, val2;
1408
1409 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1410
1411 /* Turn off the radio */
1412 err = ipw2100_hw_send_command(priv, &cmd);
1413 if (err)
1414 return err;
1415
1416 for (i = 0; i < 2500; i++) {
1417 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1418 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1419
1420 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1421 (val2 & IPW2100_COMMAND_PHY_OFF))
1422 return 0;
1423
1424 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1425 }
1426
1427 return -EIO;
1428 }
1429
1430 static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1431 {
1432 struct host_command cmd = {
1433 .host_command = HOST_COMPLETE,
1434 .host_command_sequence = 0,
1435 .host_command_length = 0
1436 };
1437 int err = 0;
1438
1439 IPW_DEBUG_HC("HOST_COMPLETE\n");
1440
1441 if (priv->status & STATUS_ENABLED)
1442 return 0;
1443
1444 mutex_lock(&priv->adapter_mutex);
1445
1446 if (rf_kill_active(priv)) {
1447 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1448 goto fail_up;
1449 }
1450
1451 err = ipw2100_hw_send_command(priv, &cmd);
1452 if (err) {
1453 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1454 goto fail_up;
1455 }
1456
1457 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1458 if (err) {
1459 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1460 priv->net_dev->name);
1461 goto fail_up;
1462 }
1463
1464 if (priv->stop_hang_check) {
1465 priv->stop_hang_check = 0;
1466 schedule_delayed_work(&priv->hang_check, HZ / 2);
1467 }
1468
1469 fail_up:
1470 mutex_unlock(&priv->adapter_mutex);
1471 return err;
1472 }
1473
1474 static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1475 {
1476 #define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1477
1478 struct host_command cmd = {
1479 .host_command = HOST_PRE_POWER_DOWN,
1480 .host_command_sequence = 0,
1481 .host_command_length = 0,
1482 };
1483 int err, i;
1484 u32 reg;
1485
1486 if (!(priv->status & STATUS_RUNNING))
1487 return 0;
1488
1489 priv->status |= STATUS_STOPPING;
1490
1491 /* We can only shut down the card if the firmware is operational. So,
1492 * if we haven't reset since a fatal_error, then we can not send the
1493 * shutdown commands. */
1494 if (!priv->fatal_error) {
1495 /* First, make sure the adapter is enabled so that the PHY_OFF
1496 * command can shut it down */
1497 ipw2100_enable_adapter(priv);
1498
1499 err = ipw2100_hw_phy_off(priv);
1500 if (err)
1501 printk(KERN_WARNING DRV_NAME
1502 ": Error disabling radio %d\n", err);
1503
1504 /*
1505 * If in D0-standby mode going directly to D3 may cause a
1506 * PCI bus violation. Therefore we must change out of the D0
1507 * state.
1508 *
1509 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1510 * hardware from going into standby mode and will transition
1511 * out of D0-standby if it is already in that state.
1512 *
1513 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1514 * driver upon completion. Once received, the driver can
1515 * proceed to the D3 state.
1516 *
1517 * Prepare for power down command to fw. This command would
1518 * take HW out of D0-standby and prepare it for D3 state.
1519 *
1520 * Currently FW does not support event notification for this
1521 * event. Therefore, skip waiting for it. Just wait a fixed
1522 * 100ms
1523 */
1524 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1525
1526 err = ipw2100_hw_send_command(priv, &cmd);
1527 if (err)
1528 printk(KERN_WARNING DRV_NAME ": "
1529 "%s: Power down command failed: Error %d\n",
1530 priv->net_dev->name, err);
1531 else
1532 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1533 }
1534
1535 priv->status &= ~STATUS_ENABLED;
1536
1537 /*
1538 * Set GPIO 3 writable by FW; GPIO 1 writable
1539 * by driver and enable clock
1540 */
1541 ipw2100_hw_set_gpio(priv);
1542
1543 /*
1544 * Power down adapter. Sequence:
1545 * 1. Stop master assert (RESET_REG[9]=1)
1546 * 2. Wait for stop master (RESET_REG[8]==1)
1547 * 3. S/w reset assert (RESET_REG[7] = 1)
1548 */
1549
1550 /* Stop master assert */
1551 write_register(priv->net_dev, IPW_REG_RESET_REG,
1552 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1553
1554 /* wait stop master not more than 50 usec.
1555 * Otherwise return error. */
1556 for (i = 5; i > 0; i--) {
1557 udelay(10);
1558
1559 /* Check master stop bit */
1560 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1561
1562 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1563 break;
1564 }
1565
1566 if (i == 0)
1567 printk(KERN_WARNING DRV_NAME
1568 ": %s: Could now power down adapter.\n",
1569 priv->net_dev->name);
1570
1571 /* assert s/w reset */
1572 write_register(priv->net_dev, IPW_REG_RESET_REG,
1573 IPW_AUX_HOST_RESET_REG_SW_RESET);
1574
1575 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1576
1577 return 0;
1578 }
1579
1580 static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1581 {
1582 struct host_command cmd = {
1583 .host_command = CARD_DISABLE,
1584 .host_command_sequence = 0,
1585 .host_command_length = 0
1586 };
1587 int err = 0;
1588
1589 IPW_DEBUG_HC("CARD_DISABLE\n");
1590
1591 if (!(priv->status & STATUS_ENABLED))
1592 return 0;
1593
1594 /* Make sure we clear the associated state */
1595 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1596
1597 if (!priv->stop_hang_check) {
1598 priv->stop_hang_check = 1;
1599 cancel_delayed_work(&priv->hang_check);
1600 }
1601
1602 mutex_lock(&priv->adapter_mutex);
1603
1604 err = ipw2100_hw_send_command(priv, &cmd);
1605 if (err) {
1606 printk(KERN_WARNING DRV_NAME
1607 ": exit - failed to send CARD_DISABLE command\n");
1608 goto fail_up;
1609 }
1610
1611 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1612 if (err) {
1613 printk(KERN_WARNING DRV_NAME
1614 ": exit - card failed to change to DISABLED\n");
1615 goto fail_up;
1616 }
1617
1618 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1619
1620 fail_up:
1621 mutex_unlock(&priv->adapter_mutex);
1622 return err;
1623 }
1624
1625 static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1626 {
1627 struct host_command cmd = {
1628 .host_command = SET_SCAN_OPTIONS,
1629 .host_command_sequence = 0,
1630 .host_command_length = 8
1631 };
1632 int err;
1633
1634 IPW_DEBUG_INFO("enter\n");
1635
1636 IPW_DEBUG_SCAN("setting scan options\n");
1637
1638 cmd.host_command_parameters[0] = 0;
1639
1640 if (!(priv->config & CFG_ASSOCIATE))
1641 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1642 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1643 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1644 if (priv->config & CFG_PASSIVE_SCAN)
1645 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1646
1647 cmd.host_command_parameters[1] = priv->channel_mask;
1648
1649 err = ipw2100_hw_send_command(priv, &cmd);
1650
1651 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1652 cmd.host_command_parameters[0]);
1653
1654 return err;
1655 }
1656
1657 static int ipw2100_start_scan(struct ipw2100_priv *priv)
1658 {
1659 struct host_command cmd = {
1660 .host_command = BROADCAST_SCAN,
1661 .host_command_sequence = 0,
1662 .host_command_length = 4
1663 };
1664 int err;
1665
1666 IPW_DEBUG_HC("START_SCAN\n");
1667
1668 cmd.host_command_parameters[0] = 0;
1669
1670 /* No scanning if in monitor mode */
1671 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1672 return 1;
1673
1674 if (priv->status & STATUS_SCANNING) {
1675 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1676 return 0;
1677 }
1678
1679 IPW_DEBUG_INFO("enter\n");
1680
1681 /* Not clearing here; doing so makes iwlist always return nothing...
1682 *
1683 * We should modify the table logic to use aging tables vs. clearing
1684 * the table on each scan start.
1685 */
1686 IPW_DEBUG_SCAN("starting scan\n");
1687
1688 priv->status |= STATUS_SCANNING;
1689 err = ipw2100_hw_send_command(priv, &cmd);
1690 if (err)
1691 priv->status &= ~STATUS_SCANNING;
1692
1693 IPW_DEBUG_INFO("exit\n");
1694
1695 return err;
1696 }
1697
1698 static const struct libipw_geo ipw_geos[] = {
1699 { /* Restricted */
1700 "---",
1701 .bg_channels = 14,
1702 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
1703 {2427, 4}, {2432, 5}, {2437, 6},
1704 {2442, 7}, {2447, 8}, {2452, 9},
1705 {2457, 10}, {2462, 11}, {2467, 12},
1706 {2472, 13}, {2484, 14}},
1707 },
1708 };
1709
1710 static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1711 {
1712 unsigned long flags;
1713 int err = 0;
1714 u32 lock;
1715 u32 ord_len = sizeof(lock);
1716
1717 /* Age scan list entries found before suspend */
1718 if (priv->suspend_time) {
1719 libipw_networks_age(priv->ieee, priv->suspend_time);
1720 priv->suspend_time = 0;
1721 }
1722
1723 /* Quiet if manually disabled. */
1724 if (priv->status & STATUS_RF_KILL_SW) {
1725 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1726 "switch\n", priv->net_dev->name);
1727 return 0;
1728 }
1729
1730 /* the ipw2100 hardware really doesn't want power management delays
1731 * longer than 175usec
1732 */
1733 pm_qos_update_request(&ipw2100_pm_qos_req, 175);
1734
1735 /* If the interrupt is enabled, turn it off... */
1736 spin_lock_irqsave(&priv->low_lock, flags);
1737 ipw2100_disable_interrupts(priv);
1738
1739 /* Reset any fatal_error conditions */
1740 ipw2100_reset_fatalerror(priv);
1741 spin_unlock_irqrestore(&priv->low_lock, flags);
1742
1743 if (priv->status & STATUS_POWERED ||
1744 (priv->status & STATUS_RESET_PENDING)) {
1745 /* Power cycle the card ... */
1746 err = ipw2100_power_cycle_adapter(priv);
1747 if (err) {
1748 printk(KERN_WARNING DRV_NAME
1749 ": %s: Could not cycle adapter.\n",
1750 priv->net_dev->name);
1751 goto exit;
1752 }
1753 } else
1754 priv->status |= STATUS_POWERED;
1755
1756 /* Load the firmware, start the clocks, etc. */
1757 err = ipw2100_start_adapter(priv);
1758 if (err) {
1759 printk(KERN_ERR DRV_NAME
1760 ": %s: Failed to start the firmware.\n",
1761 priv->net_dev->name);
1762 goto exit;
1763 }
1764
1765 ipw2100_initialize_ordinals(priv);
1766
1767 /* Determine capabilities of this particular HW configuration */
1768 err = ipw2100_get_hw_features(priv);
1769 if (err) {
1770 printk(KERN_ERR DRV_NAME
1771 ": %s: Failed to determine HW features.\n",
1772 priv->net_dev->name);
1773 goto exit;
1774 }
1775
1776 /* Initialize the geo */
1777 libipw_set_geo(priv->ieee, &ipw_geos[0]);
1778 priv->ieee->freq_band = LIBIPW_24GHZ_BAND;
1779
1780 lock = LOCK_NONE;
1781 err = ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len);
1782 if (err) {
1783 printk(KERN_ERR DRV_NAME
1784 ": %s: Failed to clear ordinal lock.\n",
1785 priv->net_dev->name);
1786 goto exit;
1787 }
1788
1789 priv->status &= ~STATUS_SCANNING;
1790
1791 if (rf_kill_active(priv)) {
1792 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1793 priv->net_dev->name);
1794
1795 if (priv->stop_rf_kill) {
1796 priv->stop_rf_kill = 0;
1797 schedule_delayed_work(&priv->rf_kill,
1798 round_jiffies_relative(HZ));
1799 }
1800
1801 deferred = 1;
1802 }
1803
1804 /* Turn on the interrupt so that commands can be processed */
1805 ipw2100_enable_interrupts(priv);
1806
1807 /* Send all of the commands that must be sent prior to
1808 * HOST_COMPLETE */
1809 err = ipw2100_adapter_setup(priv);
1810 if (err) {
1811 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1812 priv->net_dev->name);
1813 goto exit;
1814 }
1815
1816 if (!deferred) {
1817 /* Enable the adapter - sends HOST_COMPLETE */
1818 err = ipw2100_enable_adapter(priv);
1819 if (err) {
1820 printk(KERN_ERR DRV_NAME ": "
1821 "%s: failed in call to enable adapter.\n",
1822 priv->net_dev->name);
1823 ipw2100_hw_stop_adapter(priv);
1824 goto exit;
1825 }
1826
1827 /* Start a scan . . . */
1828 ipw2100_set_scan_options(priv);
1829 ipw2100_start_scan(priv);
1830 }
1831
1832 exit:
1833 return err;
1834 }
1835
1836 static void ipw2100_down(struct ipw2100_priv *priv)
1837 {
1838 unsigned long flags;
1839 union iwreq_data wrqu = {
1840 .ap_addr = {
1841 .sa_family = ARPHRD_ETHER}
1842 };
1843 int associated = priv->status & STATUS_ASSOCIATED;
1844
1845 /* Kill the RF switch timer */
1846 if (!priv->stop_rf_kill) {
1847 priv->stop_rf_kill = 1;
1848 cancel_delayed_work(&priv->rf_kill);
1849 }
1850
1851 /* Kill the firmware hang check timer */
1852 if (!priv->stop_hang_check) {
1853 priv->stop_hang_check = 1;
1854 cancel_delayed_work(&priv->hang_check);
1855 }
1856
1857 /* Kill any pending resets */
1858 if (priv->status & STATUS_RESET_PENDING)
1859 cancel_delayed_work(&priv->reset_work);
1860
1861 /* Make sure the interrupt is on so that FW commands will be
1862 * processed correctly */
1863 spin_lock_irqsave(&priv->low_lock, flags);
1864 ipw2100_enable_interrupts(priv);
1865 spin_unlock_irqrestore(&priv->low_lock, flags);
1866
1867 if (ipw2100_hw_stop_adapter(priv))
1868 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1869 priv->net_dev->name);
1870
1871 /* Do not disable the interrupt until _after_ we disable
1872 * the adaptor. Otherwise the CARD_DISABLE command will never
1873 * be ack'd by the firmware */
1874 spin_lock_irqsave(&priv->low_lock, flags);
1875 ipw2100_disable_interrupts(priv);
1876 spin_unlock_irqrestore(&priv->low_lock, flags);
1877
1878 pm_qos_update_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
1879
1880 /* We have to signal any supplicant if we are disassociating */
1881 if (associated)
1882 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1883
1884 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1885 netif_carrier_off(priv->net_dev);
1886 netif_stop_queue(priv->net_dev);
1887 }
1888
1889 static int ipw2100_wdev_init(struct net_device *dev)
1890 {
1891 struct ipw2100_priv *priv = libipw_priv(dev);
1892 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1893 struct wireless_dev *wdev = &priv->ieee->wdev;
1894 int i;
1895
1896 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
1897
1898 /* fill-out priv->ieee->bg_band */
1899 if (geo->bg_channels) {
1900 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
1901
1902 bg_band->band = NL80211_BAND_2GHZ;
1903 bg_band->n_channels = geo->bg_channels;
1904 bg_band->channels = kcalloc(geo->bg_channels,
1905 sizeof(struct ieee80211_channel),
1906 GFP_KERNEL);
1907 if (!bg_band->channels) {
1908 ipw2100_down(priv);
1909 return -ENOMEM;
1910 }
1911 /* translate geo->bg to bg_band.channels */
1912 for (i = 0; i < geo->bg_channels; i++) {
1913 bg_band->channels[i].band = NL80211_BAND_2GHZ;
1914 bg_band->channels[i].center_freq = geo->bg[i].freq;
1915 bg_band->channels[i].hw_value = geo->bg[i].channel;
1916 bg_band->channels[i].max_power = geo->bg[i].max_power;
1917 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
1918 bg_band->channels[i].flags |=
1919 IEEE80211_CHAN_NO_IR;
1920 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
1921 bg_band->channels[i].flags |=
1922 IEEE80211_CHAN_NO_IR;
1923 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
1924 bg_band->channels[i].flags |=
1925 IEEE80211_CHAN_RADAR;
1926 /* No equivalent for LIBIPW_CH_80211H_RULES,
1927 LIBIPW_CH_UNIFORM_SPREADING, or
1928 LIBIPW_CH_B_ONLY... */
1929 }
1930 /* point at bitrate info */
1931 bg_band->bitrates = ipw2100_bg_rates;
1932 bg_band->n_bitrates = RATE_COUNT;
1933
1934 wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band;
1935 }
1936
1937 wdev->wiphy->cipher_suites = ipw_cipher_suites;
1938 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
1939
1940 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
1941 if (wiphy_register(wdev->wiphy))
1942 return -EIO;
1943 return 0;
1944 }
1945
1946 static void ipw2100_reset_adapter(struct work_struct *work)
1947 {
1948 struct ipw2100_priv *priv =
1949 container_of(work, struct ipw2100_priv, reset_work.work);
1950 unsigned long flags;
1951 union iwreq_data wrqu = {
1952 .ap_addr = {
1953 .sa_family = ARPHRD_ETHER}
1954 };
1955 int associated = priv->status & STATUS_ASSOCIATED;
1956
1957 spin_lock_irqsave(&priv->low_lock, flags);
1958 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1959 priv->resets++;
1960 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1961 priv->status |= STATUS_SECURITY_UPDATED;
1962
1963 /* Force a power cycle even if interface hasn't been opened
1964 * yet */
1965 cancel_delayed_work(&priv->reset_work);
1966 priv->status |= STATUS_RESET_PENDING;
1967 spin_unlock_irqrestore(&priv->low_lock, flags);
1968
1969 mutex_lock(&priv->action_mutex);
1970 /* stop timed checks so that they don't interfere with reset */
1971 priv->stop_hang_check = 1;
1972 cancel_delayed_work(&priv->hang_check);
1973
1974 /* We have to signal any supplicant if we are disassociating */
1975 if (associated)
1976 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1977
1978 ipw2100_up(priv, 0);
1979 mutex_unlock(&priv->action_mutex);
1980
1981 }
1982
1983 static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1984 {
1985
1986 #define MAC_ASSOCIATION_READ_DELAY (HZ)
1987 int ret;
1988 unsigned int len, essid_len;
1989 char essid[IW_ESSID_MAX_SIZE];
1990 u32 txrate;
1991 u32 chan;
1992 char *txratename;
1993 u8 bssid[ETH_ALEN];
1994
1995 /*
1996 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1997 * an actual MAC of the AP. Seems like FW sets this
1998 * address too late. Read it later and expose through
1999 * /proc or schedule a later task to query and update
2000 */
2001
2002 essid_len = IW_ESSID_MAX_SIZE;
2003 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
2004 essid, &essid_len);
2005 if (ret) {
2006 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2007 __LINE__);
2008 return;
2009 }
2010
2011 len = sizeof(u32);
2012 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
2013 if (ret) {
2014 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2015 __LINE__);
2016 return;
2017 }
2018
2019 len = sizeof(u32);
2020 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
2021 if (ret) {
2022 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2023 __LINE__);
2024 return;
2025 }
2026 len = ETH_ALEN;
2027 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid,
2028 &len);
2029 if (ret) {
2030 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2031 __LINE__);
2032 return;
2033 }
2034 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
2035
2036 switch (txrate) {
2037 case TX_RATE_1_MBIT:
2038 txratename = "1Mbps";
2039 break;
2040 case TX_RATE_2_MBIT:
2041 txratename = "2Mbsp";
2042 break;
2043 case TX_RATE_5_5_MBIT:
2044 txratename = "5.5Mbps";
2045 break;
2046 case TX_RATE_11_MBIT:
2047 txratename = "11Mbps";
2048 break;
2049 default:
2050 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
2051 txratename = "unknown rate";
2052 break;
2053 }
2054
2055 IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n",
2056 priv->net_dev->name, essid_len, essid,
2057 txratename, chan, bssid);
2058
2059 /* now we copy read ssid into dev */
2060 if (!(priv->config & CFG_STATIC_ESSID)) {
2061 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
2062 memcpy(priv->essid, essid, priv->essid_len);
2063 }
2064 priv->channel = chan;
2065 memcpy(priv->bssid, bssid, ETH_ALEN);
2066
2067 priv->status |= STATUS_ASSOCIATING;
2068 priv->connect_start = ktime_get_boottime_seconds();
2069
2070 schedule_delayed_work(&priv->wx_event_work, HZ / 10);
2071 }
2072
2073 static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
2074 int length, int batch_mode)
2075 {
2076 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
2077 struct host_command cmd = {
2078 .host_command = SSID,
2079 .host_command_sequence = 0,
2080 .host_command_length = ssid_len
2081 };
2082 int err;
2083
2084 IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid);
2085
2086 if (ssid_len)
2087 memcpy(cmd.host_command_parameters, essid, ssid_len);
2088
2089 if (!batch_mode) {
2090 err = ipw2100_disable_adapter(priv);
2091 if (err)
2092 return err;
2093 }
2094
2095 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2096 * disable auto association -- so we cheat by setting a bogus SSID */
2097 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2098 int i;
2099 u8 *bogus = (u8 *) cmd.host_command_parameters;
2100 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2101 bogus[i] = 0x18 + i;
2102 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2103 }
2104
2105 /* NOTE: We always send the SSID command even if the provided ESSID is
2106 * the same as what we currently think is set. */
2107
2108 err = ipw2100_hw_send_command(priv, &cmd);
2109 if (!err) {
2110 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2111 memcpy(priv->essid, essid, ssid_len);
2112 priv->essid_len = ssid_len;
2113 }
2114
2115 if (!batch_mode) {
2116 if (ipw2100_enable_adapter(priv))
2117 err = -EIO;
2118 }
2119
2120 return err;
2121 }
2122
2123 static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2124 {
2125 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2126 "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid,
2127 priv->bssid);
2128
2129 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2130
2131 if (priv->status & STATUS_STOPPING) {
2132 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2133 return;
2134 }
2135
2136 eth_zero_addr(priv->bssid);
2137 eth_zero_addr(priv->ieee->bssid);
2138
2139 netif_carrier_off(priv->net_dev);
2140 netif_stop_queue(priv->net_dev);
2141
2142 if (!(priv->status & STATUS_RUNNING))
2143 return;
2144
2145 if (priv->status & STATUS_SECURITY_UPDATED)
2146 schedule_delayed_work(&priv->security_work, 0);
2147
2148 schedule_delayed_work(&priv->wx_event_work, 0);
2149 }
2150
2151 static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2152 {
2153 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2154 priv->net_dev->name);
2155
2156 /* RF_KILL is now enabled (else we wouldn't be here) */
2157 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2158 priv->status |= STATUS_RF_KILL_HW;
2159
2160 /* Make sure the RF Kill check timer is running */
2161 priv->stop_rf_kill = 0;
2162 mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ));
2163 }
2164
2165 static void ipw2100_scan_event(struct work_struct *work)
2166 {
2167 struct ipw2100_priv *priv = container_of(work, struct ipw2100_priv,
2168 scan_event.work);
2169 union iwreq_data wrqu;
2170
2171 wrqu.data.length = 0;
2172 wrqu.data.flags = 0;
2173 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
2174 }
2175
2176 static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2177 {
2178 IPW_DEBUG_SCAN("scan complete\n");
2179 /* Age the scan results... */
2180 priv->ieee->scans++;
2181 priv->status &= ~STATUS_SCANNING;
2182
2183 /* Only userspace-requested scan completion events go out immediately */
2184 if (!priv->user_requested_scan) {
2185 schedule_delayed_work(&priv->scan_event,
2186 round_jiffies_relative(msecs_to_jiffies(4000)));
2187 } else {
2188 priv->user_requested_scan = 0;
2189 mod_delayed_work(system_wq, &priv->scan_event, 0);
2190 }
2191 }
2192
2193 #ifdef CONFIG_IPW2100_DEBUG
2194 #define IPW2100_HANDLER(v, f) { v, f, # v }
2195 struct ipw2100_status_indicator {
2196 int status;
2197 void (*cb) (struct ipw2100_priv * priv, u32 status);
2198 char *name;
2199 };
2200 #else
2201 #define IPW2100_HANDLER(v, f) { v, f }
2202 struct ipw2100_status_indicator {
2203 int status;
2204 void (*cb) (struct ipw2100_priv * priv, u32 status);
2205 };
2206 #endif /* CONFIG_IPW2100_DEBUG */
2207
2208 static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2209 {
2210 IPW_DEBUG_SCAN("Scanning...\n");
2211 priv->status |= STATUS_SCANNING;
2212 }
2213
2214 static const struct ipw2100_status_indicator status_handlers[] = {
2215 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2216 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2217 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2218 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2219 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2220 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2221 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2222 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2223 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2224 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2225 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2226 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2227 IPW2100_HANDLER(-1, NULL)
2228 };
2229
2230 static void isr_status_change(struct ipw2100_priv *priv, int status)
2231 {
2232 int i;
2233
2234 if (status == IPW_STATE_SCANNING &&
2235 priv->status & STATUS_ASSOCIATED &&
2236 !(priv->status & STATUS_SCANNING)) {
2237 IPW_DEBUG_INFO("Scan detected while associated, with "
2238 "no scan request. Restarting firmware.\n");
2239
2240 /* Wake up any sleeping jobs */
2241 schedule_reset(priv);
2242 }
2243
2244 for (i = 0; status_handlers[i].status != -1; i++) {
2245 if (status == status_handlers[i].status) {
2246 IPW_DEBUG_NOTIF("Status change: %s\n",
2247 status_handlers[i].name);
2248 if (status_handlers[i].cb)
2249 status_handlers[i].cb(priv, status);
2250 priv->wstats.status = status;
2251 return;
2252 }
2253 }
2254
2255 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2256 }
2257
2258 static void isr_rx_complete_command(struct ipw2100_priv *priv,
2259 struct ipw2100_cmd_header *cmd)
2260 {
2261 #ifdef CONFIG_IPW2100_DEBUG
2262 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2263 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2264 command_types[cmd->host_command_reg],
2265 cmd->host_command_reg);
2266 }
2267 #endif
2268 if (cmd->host_command_reg == HOST_COMPLETE)
2269 priv->status |= STATUS_ENABLED;
2270
2271 if (cmd->host_command_reg == CARD_DISABLE)
2272 priv->status &= ~STATUS_ENABLED;
2273
2274 priv->status &= ~STATUS_CMD_ACTIVE;
2275
2276 wake_up_interruptible(&priv->wait_command_queue);
2277 }
2278
2279 #ifdef CONFIG_IPW2100_DEBUG
2280 static const char *frame_types[] = {
2281 "COMMAND_STATUS_VAL",
2282 "STATUS_CHANGE_VAL",
2283 "P80211_DATA_VAL",
2284 "P8023_DATA_VAL",
2285 "HOST_NOTIFICATION_VAL"
2286 };
2287 #endif
2288
2289 static int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2290 struct ipw2100_rx_packet *packet)
2291 {
2292 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2293 if (!packet->skb)
2294 return -ENOMEM;
2295
2296 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2297 packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data,
2298 sizeof(struct ipw2100_rx),
2299 PCI_DMA_FROMDEVICE);
2300 if (pci_dma_mapping_error(priv->pci_dev, packet->dma_addr)) {
2301 dev_kfree_skb(packet->skb);
2302 return -ENOMEM;
2303 }
2304
2305 return 0;
2306 }
2307
2308 #define SEARCH_ERROR 0xffffffff
2309 #define SEARCH_FAIL 0xfffffffe
2310 #define SEARCH_SUCCESS 0xfffffff0
2311 #define SEARCH_DISCARD 0
2312 #define SEARCH_SNAPSHOT 1
2313
2314 #define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2315 static void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2316 {
2317 int i;
2318 if (!priv->snapshot[0])
2319 return;
2320 for (i = 0; i < 0x30; i++)
2321 kfree(priv->snapshot[i]);
2322 priv->snapshot[0] = NULL;
2323 }
2324
2325 #ifdef IPW2100_DEBUG_C3
2326 static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2327 {
2328 int i;
2329 if (priv->snapshot[0])
2330 return 1;
2331 for (i = 0; i < 0x30; i++) {
2332 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
2333 if (!priv->snapshot[i]) {
2334 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2335 "buffer %d\n", priv->net_dev->name, i);
2336 while (i > 0)
2337 kfree(priv->snapshot[--i]);
2338 priv->snapshot[0] = NULL;
2339 return 0;
2340 }
2341 }
2342
2343 return 1;
2344 }
2345
2346 static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2347 size_t len, int mode)
2348 {
2349 u32 i, j;
2350 u32 tmp;
2351 u8 *s, *d;
2352 u32 ret;
2353
2354 s = in_buf;
2355 if (mode == SEARCH_SNAPSHOT) {
2356 if (!ipw2100_snapshot_alloc(priv))
2357 mode = SEARCH_DISCARD;
2358 }
2359
2360 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2361 read_nic_dword(priv->net_dev, i, &tmp);
2362 if (mode == SEARCH_SNAPSHOT)
2363 *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2364 if (ret == SEARCH_FAIL) {
2365 d = (u8 *) & tmp;
2366 for (j = 0; j < 4; j++) {
2367 if (*s != *d) {
2368 s = in_buf;
2369 continue;
2370 }
2371
2372 s++;
2373 d++;
2374
2375 if ((s - in_buf) == len)
2376 ret = (i + j) - len + 1;
2377 }
2378 } else if (mode == SEARCH_DISCARD)
2379 return ret;
2380 }
2381
2382 return ret;
2383 }
2384 #endif
2385
2386 /*
2387 *
2388 * 0) Disconnect the SKB from the firmware (just unmap)
2389 * 1) Pack the ETH header into the SKB
2390 * 2) Pass the SKB to the network stack
2391 *
2392 * When packet is provided by the firmware, it contains the following:
2393 *
2394 * . libipw_hdr
2395 * . libipw_snap_hdr
2396 *
2397 * The size of the constructed ethernet
2398 *
2399 */
2400 #ifdef IPW2100_RX_DEBUG
2401 static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2402 #endif
2403
2404 static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2405 {
2406 #ifdef IPW2100_DEBUG_C3
2407 struct ipw2100_status *status = &priv->status_queue.drv[i];
2408 u32 match, reg;
2409 int j;
2410 #endif
2411
2412 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2413 i * sizeof(struct ipw2100_status));
2414
2415 #ifdef IPW2100_DEBUG_C3
2416 /* Halt the firmware so we can get a good image */
2417 write_register(priv->net_dev, IPW_REG_RESET_REG,
2418 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2419 j = 5;
2420 do {
2421 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2422 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
2423
2424 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2425 break;
2426 } while (j--);
2427
2428 match = ipw2100_match_buf(priv, (u8 *) status,
2429 sizeof(struct ipw2100_status),
2430 SEARCH_SNAPSHOT);
2431 if (match < SEARCH_SUCCESS)
2432 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2433 "offset 0x%06X, length %d:\n",
2434 priv->net_dev->name, match,
2435 sizeof(struct ipw2100_status));
2436 else
2437 IPW_DEBUG_INFO("%s: No DMA status match in "
2438 "Firmware.\n", priv->net_dev->name);
2439
2440 printk_buf((u8 *) priv->status_queue.drv,
2441 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2442 #endif
2443
2444 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2445 priv->net_dev->stats.rx_errors++;
2446 schedule_reset(priv);
2447 }
2448
2449 static void isr_rx(struct ipw2100_priv *priv, int i,
2450 struct libipw_rx_stats *stats)
2451 {
2452 struct net_device *dev = priv->net_dev;
2453 struct ipw2100_status *status = &priv->status_queue.drv[i];
2454 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2455
2456 IPW_DEBUG_RX("Handler...\n");
2457
2458 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2459 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2460 " Dropping.\n",
2461 dev->name,
2462 status->frame_size, skb_tailroom(packet->skb));
2463 dev->stats.rx_errors++;
2464 return;
2465 }
2466
2467 if (unlikely(!netif_running(dev))) {
2468 dev->stats.rx_errors++;
2469 priv->wstats.discard.misc++;
2470 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2471 return;
2472 }
2473
2474 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2475 !(priv->status & STATUS_ASSOCIATED))) {
2476 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2477 priv->wstats.discard.misc++;
2478 return;
2479 }
2480
2481 pci_unmap_single(priv->pci_dev,
2482 packet->dma_addr,
2483 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2484
2485 skb_put(packet->skb, status->frame_size);
2486
2487 #ifdef IPW2100_RX_DEBUG
2488 /* Make a copy of the frame so we can dump it to the logs if
2489 * libipw_rx fails */
2490 skb_copy_from_linear_data(packet->skb, packet_data,
2491 min_t(u32, status->frame_size,
2492 IPW_RX_NIC_BUFFER_LENGTH));
2493 #endif
2494
2495 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2496 #ifdef IPW2100_RX_DEBUG
2497 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2498 dev->name);
2499 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2500 #endif
2501 dev->stats.rx_errors++;
2502
2503 /* libipw_rx failed, so it didn't free the SKB */
2504 dev_kfree_skb_any(packet->skb);
2505 packet->skb = NULL;
2506 }
2507
2508 /* We need to allocate a new SKB and attach it to the RDB. */
2509 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2510 printk(KERN_WARNING DRV_NAME ": "
2511 "%s: Unable to allocate SKB onto RBD ring - disabling "
2512 "adapter.\n", dev->name);
2513 /* TODO: schedule adapter shutdown */
2514 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2515 }
2516
2517 /* Update the RDB entry */
2518 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2519 }
2520
2521 #ifdef CONFIG_IPW2100_MONITOR
2522
2523 static void isr_rx_monitor(struct ipw2100_priv *priv, int i,
2524 struct libipw_rx_stats *stats)
2525 {
2526 struct net_device *dev = priv->net_dev;
2527 struct ipw2100_status *status = &priv->status_queue.drv[i];
2528 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2529
2530 /* Magic struct that slots into the radiotap header -- no reason
2531 * to build this manually element by element, we can write it much
2532 * more efficiently than we can parse it. ORDER MATTERS HERE */
2533 struct ipw_rt_hdr {
2534 struct ieee80211_radiotap_header rt_hdr;
2535 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */
2536 } *ipw_rt;
2537
2538 IPW_DEBUG_RX("Handler...\n");
2539
2540 if (unlikely(status->frame_size > skb_tailroom(packet->skb) -
2541 sizeof(struct ipw_rt_hdr))) {
2542 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2543 " Dropping.\n",
2544 dev->name,
2545 status->frame_size,
2546 skb_tailroom(packet->skb));
2547 dev->stats.rx_errors++;
2548 return;
2549 }
2550
2551 if (unlikely(!netif_running(dev))) {
2552 dev->stats.rx_errors++;
2553 priv->wstats.discard.misc++;
2554 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2555 return;
2556 }
2557
2558 if (unlikely(priv->config & CFG_CRC_CHECK &&
2559 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2560 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2561 dev->stats.rx_errors++;
2562 return;
2563 }
2564
2565 pci_unmap_single(priv->pci_dev, packet->dma_addr,
2566 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2567 memmove(packet->skb->data + sizeof(struct ipw_rt_hdr),
2568 packet->skb->data, status->frame_size);
2569
2570 ipw_rt = (struct ipw_rt_hdr *) packet->skb->data;
2571
2572 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
2573 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
2574 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */
2575
2576 ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
2577
2578 ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM;
2579
2580 skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr));
2581
2582 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2583 dev->stats.rx_errors++;
2584
2585 /* libipw_rx failed, so it didn't free the SKB */
2586 dev_kfree_skb_any(packet->skb);
2587 packet->skb = NULL;
2588 }
2589
2590 /* We need to allocate a new SKB and attach it to the RDB. */
2591 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2592 IPW_DEBUG_WARNING(
2593 "%s: Unable to allocate SKB onto RBD ring - disabling "
2594 "adapter.\n", dev->name);
2595 /* TODO: schedule adapter shutdown */
2596 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2597 }
2598
2599 /* Update the RDB entry */
2600 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2601 }
2602
2603 #endif
2604
2605 static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2606 {
2607 struct ipw2100_status *status = &priv->status_queue.drv[i];
2608 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2609 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2610
2611 switch (frame_type) {
2612 case COMMAND_STATUS_VAL:
2613 return (status->frame_size != sizeof(u->rx_data.command));
2614 case STATUS_CHANGE_VAL:
2615 return (status->frame_size != sizeof(u->rx_data.status));
2616 case HOST_NOTIFICATION_VAL:
2617 return (status->frame_size < sizeof(u->rx_data.notification));
2618 case P80211_DATA_VAL:
2619 case P8023_DATA_VAL:
2620 #ifdef CONFIG_IPW2100_MONITOR
2621 return 0;
2622 #else
2623 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2624 case IEEE80211_FTYPE_MGMT:
2625 case IEEE80211_FTYPE_CTL:
2626 return 0;
2627 case IEEE80211_FTYPE_DATA:
2628 return (status->frame_size >
2629 IPW_MAX_802_11_PAYLOAD_LENGTH);
2630 }
2631 #endif
2632 }
2633
2634 return 1;
2635 }
2636
2637 /*
2638 * ipw2100 interrupts are disabled at this point, and the ISR
2639 * is the only code that calls this method. So, we do not need
2640 * to play with any locks.
2641 *
2642 * RX Queue works as follows:
2643 *
2644 * Read index - firmware places packet in entry identified by the
2645 * Read index and advances Read index. In this manner,
2646 * Read index will always point to the next packet to
2647 * be filled--but not yet valid.
2648 *
2649 * Write index - driver fills this entry with an unused RBD entry.
2650 * This entry has not filled by the firmware yet.
2651 *
2652 * In between the W and R indexes are the RBDs that have been received
2653 * but not yet processed.
2654 *
2655 * The process of handling packets will start at WRITE + 1 and advance
2656 * until it reaches the READ index.
2657 *
2658 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2659 *
2660 */
2661 static void __ipw2100_rx_process(struct ipw2100_priv *priv)
2662 {
2663 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2664 struct ipw2100_status_queue *sq = &priv->status_queue;
2665 struct ipw2100_rx_packet *packet;
2666 u16 frame_type;
2667 u32 r, w, i, s;
2668 struct ipw2100_rx *u;
2669 struct libipw_rx_stats stats = {
2670 .mac_time = jiffies,
2671 };
2672
2673 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2674 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2675
2676 if (r >= rxq->entries) {
2677 IPW_DEBUG_RX("exit - bad read index\n");
2678 return;
2679 }
2680
2681 i = (rxq->next + 1) % rxq->entries;
2682 s = i;
2683 while (i != r) {
2684 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2685 r, rxq->next, i); */
2686
2687 packet = &priv->rx_buffers[i];
2688
2689 /* Sync the DMA for the RX buffer so CPU is sure to get
2690 * the correct values */
2691 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr,
2692 sizeof(struct ipw2100_rx),
2693 PCI_DMA_FROMDEVICE);
2694
2695 if (unlikely(ipw2100_corruption_check(priv, i))) {
2696 ipw2100_corruption_detected(priv, i);
2697 goto increment;
2698 }
2699
2700 u = packet->rxp;
2701 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2702 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2703 stats.len = sq->drv[i].frame_size;
2704
2705 stats.mask = 0;
2706 if (stats.rssi != 0)
2707 stats.mask |= LIBIPW_STATMASK_RSSI;
2708 stats.freq = LIBIPW_24GHZ_BAND;
2709
2710 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2711 priv->net_dev->name, frame_types[frame_type],
2712 stats.len);
2713
2714 switch (frame_type) {
2715 case COMMAND_STATUS_VAL:
2716 /* Reset Rx watchdog */
2717 isr_rx_complete_command(priv, &u->rx_data.command);
2718 break;
2719
2720 case STATUS_CHANGE_VAL:
2721 isr_status_change(priv, u->rx_data.status);
2722 break;
2723
2724 case P80211_DATA_VAL:
2725 case P8023_DATA_VAL:
2726 #ifdef CONFIG_IPW2100_MONITOR
2727 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2728 isr_rx_monitor(priv, i, &stats);
2729 break;
2730 }
2731 #endif
2732 if (stats.len < sizeof(struct libipw_hdr_3addr))
2733 break;
2734 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2735 case IEEE80211_FTYPE_MGMT:
2736 libipw_rx_mgt(priv->ieee,
2737 &u->rx_data.header, &stats);
2738 break;
2739
2740 case IEEE80211_FTYPE_CTL:
2741 break;
2742
2743 case IEEE80211_FTYPE_DATA:
2744 isr_rx(priv, i, &stats);
2745 break;
2746
2747 }
2748 break;
2749 }
2750
2751 increment:
2752 /* clear status field associated with this RBD */
2753 rxq->drv[i].status.info.field = 0;
2754
2755 i = (i + 1) % rxq->entries;
2756 }
2757
2758 if (i != s) {
2759 /* backtrack one entry, wrapping to end if at 0 */
2760 rxq->next = (i ? i : rxq->entries) - 1;
2761
2762 write_register(priv->net_dev,
2763 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2764 }
2765 }
2766
2767 /*
2768 * __ipw2100_tx_process
2769 *
2770 * This routine will determine whether the next packet on
2771 * the fw_pend_list has been processed by the firmware yet.
2772 *
2773 * If not, then it does nothing and returns.
2774 *
2775 * If so, then it removes the item from the fw_pend_list, frees
2776 * any associated storage, and places the item back on the
2777 * free list of its source (either msg_free_list or tx_free_list)
2778 *
2779 * TX Queue works as follows:
2780 *
2781 * Read index - points to the next TBD that the firmware will
2782 * process. The firmware will read the data, and once
2783 * done processing, it will advance the Read index.
2784 *
2785 * Write index - driver fills this entry with an constructed TBD
2786 * entry. The Write index is not advanced until the
2787 * packet has been configured.
2788 *
2789 * In between the W and R indexes are the TBDs that have NOT been
2790 * processed. Lagging behind the R index are packets that have
2791 * been processed but have not been freed by the driver.
2792 *
2793 * In order to free old storage, an internal index will be maintained
2794 * that points to the next packet to be freed. When all used
2795 * packets have been freed, the oldest index will be the same as the
2796 * firmware's read index.
2797 *
2798 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2799 *
2800 * Because the TBD structure can not contain arbitrary data, the
2801 * driver must keep an internal queue of cached allocations such that
2802 * it can put that data back into the tx_free_list and msg_free_list
2803 * for use by future command and data packets.
2804 *
2805 */
2806 static int __ipw2100_tx_process(struct ipw2100_priv *priv)
2807 {
2808 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2809 struct ipw2100_bd *tbd;
2810 struct list_head *element;
2811 struct ipw2100_tx_packet *packet;
2812 int descriptors_used;
2813 int e, i;
2814 u32 r, w, frag_num = 0;
2815
2816 if (list_empty(&priv->fw_pend_list))
2817 return 0;
2818
2819 element = priv->fw_pend_list.next;
2820
2821 packet = list_entry(element, struct ipw2100_tx_packet, list);
2822 tbd = &txq->drv[packet->index];
2823
2824 /* Determine how many TBD entries must be finished... */
2825 switch (packet->type) {
2826 case COMMAND:
2827 /* COMMAND uses only one slot; don't advance */
2828 descriptors_used = 1;
2829 e = txq->oldest;
2830 break;
2831
2832 case DATA:
2833 /* DATA uses two slots; advance and loop position. */
2834 descriptors_used = tbd->num_fragments;
2835 frag_num = tbd->num_fragments - 1;
2836 e = txq->oldest + frag_num;
2837 e %= txq->entries;
2838 break;
2839
2840 default:
2841 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2842 priv->net_dev->name);
2843 return 0;
2844 }
2845
2846 /* if the last TBD is not done by NIC yet, then packet is
2847 * not ready to be released.
2848 *
2849 */
2850 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2851 &r);
2852 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2853 &w);
2854 if (w != txq->next)
2855 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2856 priv->net_dev->name);
2857
2858 /*
2859 * txq->next is the index of the last packet written txq->oldest is
2860 * the index of the r is the index of the next packet to be read by
2861 * firmware
2862 */
2863
2864 /*
2865 * Quick graphic to help you visualize the following
2866 * if / else statement
2867 *
2868 * ===>| s---->|===============
2869 * e>|
2870 * | a | b | c | d | e | f | g | h | i | j | k | l
2871 * r---->|
2872 * w
2873 *
2874 * w - updated by driver
2875 * r - updated by firmware
2876 * s - start of oldest BD entry (txq->oldest)
2877 * e - end of oldest BD entry
2878 *
2879 */
2880 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2881 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2882 return 0;
2883 }
2884
2885 list_del(element);
2886 DEC_STAT(&priv->fw_pend_stat);
2887
2888 #ifdef CONFIG_IPW2100_DEBUG
2889 {
2890 i = txq->oldest;
2891 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2892 &txq->drv[i],
2893 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2894 txq->drv[i].host_addr, txq->drv[i].buf_length);
2895
2896 if (packet->type == DATA) {
2897 i = (i + 1) % txq->entries;
2898
2899 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2900 &txq->drv[i],
2901 (u32) (txq->nic + i *
2902 sizeof(struct ipw2100_bd)),
2903 (u32) txq->drv[i].host_addr,
2904 txq->drv[i].buf_length);
2905 }
2906 }
2907 #endif
2908
2909 switch (packet->type) {
2910 case DATA:
2911 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2912 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2913 "Expecting DATA TBD but pulled "
2914 "something else: ids %d=%d.\n",
2915 priv->net_dev->name, txq->oldest, packet->index);
2916
2917 /* DATA packet; we have to unmap and free the SKB */
2918 for (i = 0; i < frag_num; i++) {
2919 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2920
2921 IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2922 (packet->index + 1 + i) % txq->entries,
2923 tbd->host_addr, tbd->buf_length);
2924
2925 pci_unmap_single(priv->pci_dev,
2926 tbd->host_addr,
2927 tbd->buf_length, PCI_DMA_TODEVICE);
2928 }
2929
2930 libipw_txb_free(packet->info.d_struct.txb);
2931 packet->info.d_struct.txb = NULL;
2932
2933 list_add_tail(element, &priv->tx_free_list);
2934 INC_STAT(&priv->tx_free_stat);
2935
2936 /* We have a free slot in the Tx queue, so wake up the
2937 * transmit layer if it is stopped. */
2938 if (priv->status & STATUS_ASSOCIATED)
2939 netif_wake_queue(priv->net_dev);
2940
2941 /* A packet was processed by the hardware, so update the
2942 * watchdog */
2943 netif_trans_update(priv->net_dev);
2944
2945 break;
2946
2947 case COMMAND:
2948 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2949 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2950 "Expecting COMMAND TBD but pulled "
2951 "something else: ids %d=%d.\n",
2952 priv->net_dev->name, txq->oldest, packet->index);
2953
2954 #ifdef CONFIG_IPW2100_DEBUG
2955 if (packet->info.c_struct.cmd->host_command_reg <
2956 ARRAY_SIZE(command_types))
2957 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2958 command_types[packet->info.c_struct.cmd->
2959 host_command_reg],
2960 packet->info.c_struct.cmd->
2961 host_command_reg,
2962 packet->info.c_struct.cmd->cmd_status_reg);
2963 #endif
2964
2965 list_add_tail(element, &priv->msg_free_list);
2966 INC_STAT(&priv->msg_free_stat);
2967 break;
2968 }
2969
2970 /* advance oldest used TBD pointer to start of next entry */
2971 txq->oldest = (e + 1) % txq->entries;
2972 /* increase available TBDs number */
2973 txq->available += descriptors_used;
2974 SET_STAT(&priv->txq_stat, txq->available);
2975
2976 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2977 jiffies - packet->jiffy_start);
2978
2979 return (!list_empty(&priv->fw_pend_list));
2980 }
2981
2982 static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2983 {
2984 int i = 0;
2985
2986 while (__ipw2100_tx_process(priv) && i < 200)
2987 i++;
2988
2989 if (i == 200) {
2990 printk(KERN_WARNING DRV_NAME ": "
2991 "%s: Driver is running slow (%d iters).\n",
2992 priv->net_dev->name, i);
2993 }
2994 }
2995
2996 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2997 {
2998 struct list_head *element;
2999 struct ipw2100_tx_packet *packet;
3000 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3001 struct ipw2100_bd *tbd;
3002 int next = txq->next;
3003
3004 while (!list_empty(&priv->msg_pend_list)) {
3005 /* if there isn't enough space in TBD queue, then
3006 * don't stuff a new one in.
3007 * NOTE: 3 are needed as a command will take one,
3008 * and there is a minimum of 2 that must be
3009 * maintained between the r and w indexes
3010 */
3011 if (txq->available <= 3) {
3012 IPW_DEBUG_TX("no room in tx_queue\n");
3013 break;
3014 }
3015
3016 element = priv->msg_pend_list.next;
3017 list_del(element);
3018 DEC_STAT(&priv->msg_pend_stat);
3019
3020 packet = list_entry(element, struct ipw2100_tx_packet, list);
3021
3022 IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n",
3023 &txq->drv[txq->next],
3024 (u32) (txq->nic + txq->next *
3025 sizeof(struct ipw2100_bd)));
3026
3027 packet->index = txq->next;
3028
3029 tbd = &txq->drv[txq->next];
3030
3031 /* initialize TBD */
3032 tbd->host_addr = packet->info.c_struct.cmd_phys;
3033 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
3034 /* not marking number of fragments causes problems
3035 * with f/w debug version */
3036 tbd->num_fragments = 1;
3037 tbd->status.info.field =
3038 IPW_BD_STATUS_TX_FRAME_COMMAND |
3039 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3040
3041 /* update TBD queue counters */
3042 txq->next++;
3043 txq->next %= txq->entries;
3044 txq->available--;
3045 DEC_STAT(&priv->txq_stat);
3046
3047 list_add_tail(element, &priv->fw_pend_list);
3048 INC_STAT(&priv->fw_pend_stat);
3049 }
3050
3051 if (txq->next != next) {
3052 /* kick off the DMA by notifying firmware the
3053 * write index has moved; make sure TBD stores are sync'd */
3054 wmb();
3055 write_register(priv->net_dev,
3056 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3057 txq->next);
3058 }
3059 }
3060
3061 /*
3062 * ipw2100_tx_send_data
3063 *
3064 */
3065 static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
3066 {
3067 struct list_head *element;
3068 struct ipw2100_tx_packet *packet;
3069 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3070 struct ipw2100_bd *tbd;
3071 int next = txq->next;
3072 int i = 0;
3073 struct ipw2100_data_header *ipw_hdr;
3074 struct libipw_hdr_3addr *hdr;
3075
3076 while (!list_empty(&priv->tx_pend_list)) {
3077 /* if there isn't enough space in TBD queue, then
3078 * don't stuff a new one in.
3079 * NOTE: 4 are needed as a data will take two,
3080 * and there is a minimum of 2 that must be
3081 * maintained between the r and w indexes
3082 */
3083 element = priv->tx_pend_list.next;
3084 packet = list_entry(element, struct ipw2100_tx_packet, list);
3085
3086 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
3087 IPW_MAX_BDS)) {
3088 /* TODO: Support merging buffers if more than
3089 * IPW_MAX_BDS are used */
3090 IPW_DEBUG_INFO("%s: Maximum BD threshold exceeded. "
3091 "Increase fragmentation level.\n",
3092 priv->net_dev->name);
3093 }
3094
3095 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
3096 IPW_DEBUG_TX("no room in tx_queue\n");
3097 break;
3098 }
3099
3100 list_del(element);
3101 DEC_STAT(&priv->tx_pend_stat);
3102
3103 tbd = &txq->drv[txq->next];
3104
3105 packet->index = txq->next;
3106
3107 ipw_hdr = packet->info.d_struct.data;
3108 hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb->
3109 fragments[0]->data;
3110
3111 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
3112 /* To DS: Addr1 = BSSID, Addr2 = SA,
3113 Addr3 = DA */
3114 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3115 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3116 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3117 /* not From/To DS: Addr1 = DA, Addr2 = SA,
3118 Addr3 = BSSID */
3119 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3120 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3121 }
3122
3123 ipw_hdr->host_command_reg = SEND;
3124 ipw_hdr->host_command_reg1 = 0;
3125
3126 /* For now we only support host based encryption */
3127 ipw_hdr->needs_encryption = 0;
3128 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3129 if (packet->info.d_struct.txb->nr_frags > 1)
3130 ipw_hdr->fragment_size =
3131 packet->info.d_struct.txb->frag_size -
3132 LIBIPW_3ADDR_LEN;
3133 else
3134 ipw_hdr->fragment_size = 0;
3135
3136 tbd->host_addr = packet->info.d_struct.data_phys;
3137 tbd->buf_length = sizeof(struct ipw2100_data_header);
3138 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3139 tbd->status.info.field =
3140 IPW_BD_STATUS_TX_FRAME_802_3 |
3141 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3142 txq->next++;
3143 txq->next %= txq->entries;
3144
3145 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
3146 packet->index, tbd->host_addr, tbd->buf_length);
3147 #ifdef CONFIG_IPW2100_DEBUG
3148 if (packet->info.d_struct.txb->nr_frags > 1)
3149 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3150 packet->info.d_struct.txb->nr_frags);
3151 #endif
3152
3153 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3154 tbd = &txq->drv[txq->next];
3155 if (i == packet->info.d_struct.txb->nr_frags - 1)
3156 tbd->status.info.field =
3157 IPW_BD_STATUS_TX_FRAME_802_3 |
3158 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3159 else
3160 tbd->status.info.field =
3161 IPW_BD_STATUS_TX_FRAME_802_3 |
3162 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3163
3164 tbd->buf_length = packet->info.d_struct.txb->
3165 fragments[i]->len - LIBIPW_3ADDR_LEN;
3166
3167 tbd->host_addr = pci_map_single(priv->pci_dev,
3168 packet->info.d_struct.
3169 txb->fragments[i]->
3170 data +
3171 LIBIPW_3ADDR_LEN,
3172 tbd->buf_length,
3173 PCI_DMA_TODEVICE);
3174 if (pci_dma_mapping_error(priv->pci_dev,
3175 tbd->host_addr)) {
3176 IPW_DEBUG_TX("dma mapping error\n");
3177 break;
3178 }
3179
3180 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3181 txq->next, tbd->host_addr,
3182 tbd->buf_length);
3183
3184 pci_dma_sync_single_for_device(priv->pci_dev,
3185 tbd->host_addr,
3186 tbd->buf_length,
3187 PCI_DMA_TODEVICE);
3188
3189 txq->next++;
3190 txq->next %= txq->entries;
3191 }
3192
3193 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3194 SET_STAT(&priv->txq_stat, txq->available);
3195
3196 list_add_tail(element, &priv->fw_pend_list);
3197 INC_STAT(&priv->fw_pend_stat);
3198 }
3199
3200 if (txq->next != next) {
3201 /* kick off the DMA by notifying firmware the
3202 * write index has moved; make sure TBD stores are sync'd */
3203 write_register(priv->net_dev,
3204 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3205 txq->next);
3206 }
3207 }
3208
3209 static void ipw2100_irq_tasklet(unsigned long data)
3210 {
3211 struct ipw2100_priv *priv = (struct ipw2100_priv *)data;
3212 struct net_device *dev = priv->net_dev;
3213 unsigned long flags;
3214 u32 inta, tmp;
3215
3216 spin_lock_irqsave(&priv->low_lock, flags);
3217 ipw2100_disable_interrupts(priv);
3218
3219 read_register(dev, IPW_REG_INTA, &inta);
3220
3221 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3222 (unsigned long)inta & IPW_INTERRUPT_MASK);
3223
3224 priv->in_isr++;
3225 priv->interrupts++;
3226
3227 /* We do not loop and keep polling for more interrupts as this
3228 * is frowned upon and doesn't play nicely with other potentially
3229 * chained IRQs */
3230 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3231 (unsigned long)inta & IPW_INTERRUPT_MASK);
3232
3233 if (inta & IPW2100_INTA_FATAL_ERROR) {
3234 printk(KERN_WARNING DRV_NAME
3235 ": Fatal interrupt. Scheduling firmware restart.\n");
3236 priv->inta_other++;
3237 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3238
3239 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3240 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3241 priv->net_dev->name, priv->fatal_error);
3242
3243 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3244 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3245 priv->net_dev->name, tmp);
3246
3247 /* Wake up any sleeping jobs */
3248 schedule_reset(priv);
3249 }
3250
3251 if (inta & IPW2100_INTA_PARITY_ERROR) {
3252 printk(KERN_ERR DRV_NAME
3253 ": ***** PARITY ERROR INTERRUPT !!!!\n");
3254 priv->inta_other++;
3255 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3256 }
3257
3258 if (inta & IPW2100_INTA_RX_TRANSFER) {
3259 IPW_DEBUG_ISR("RX interrupt\n");
3260
3261 priv->rx_interrupts++;
3262
3263 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3264
3265 __ipw2100_rx_process(priv);
3266 __ipw2100_tx_complete(priv);
3267 }
3268
3269 if (inta & IPW2100_INTA_TX_TRANSFER) {
3270 IPW_DEBUG_ISR("TX interrupt\n");
3271
3272 priv->tx_interrupts++;
3273
3274 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3275
3276 __ipw2100_tx_complete(priv);
3277 ipw2100_tx_send_commands(priv);
3278 ipw2100_tx_send_data(priv);
3279 }
3280
3281 if (inta & IPW2100_INTA_TX_COMPLETE) {
3282 IPW_DEBUG_ISR("TX complete\n");
3283 priv->inta_other++;
3284 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3285
3286 __ipw2100_tx_complete(priv);
3287 }
3288
3289 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3290 /* ipw2100_handle_event(dev); */
3291 priv->inta_other++;
3292 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3293 }
3294
3295 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3296 IPW_DEBUG_ISR("FW init done interrupt\n");
3297 priv->inta_other++;
3298
3299 read_register(dev, IPW_REG_INTA, &tmp);
3300 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3301 IPW2100_INTA_PARITY_ERROR)) {
3302 write_register(dev, IPW_REG_INTA,
3303 IPW2100_INTA_FATAL_ERROR |
3304 IPW2100_INTA_PARITY_ERROR);
3305 }
3306
3307 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3308 }
3309
3310 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3311 IPW_DEBUG_ISR("Status change interrupt\n");
3312 priv->inta_other++;
3313 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3314 }
3315
3316 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3317 IPW_DEBUG_ISR("slave host mode interrupt\n");
3318 priv->inta_other++;
3319 write_register(dev, IPW_REG_INTA,
3320 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3321 }
3322
3323 priv->in_isr--;
3324 ipw2100_enable_interrupts(priv);
3325
3326 spin_unlock_irqrestore(&priv->low_lock, flags);
3327
3328 IPW_DEBUG_ISR("exit\n");
3329 }
3330
3331 static irqreturn_t ipw2100_interrupt(int irq, void *data)
3332 {
3333 struct ipw2100_priv *priv = data;
3334 u32 inta, inta_mask;
3335
3336 if (!data)
3337 return IRQ_NONE;
3338
3339 spin_lock(&priv->low_lock);
3340
3341 /* We check to see if we should be ignoring interrupts before
3342 * we touch the hardware. During ucode load if we try and handle
3343 * an interrupt we can cause keyboard problems as well as cause
3344 * the ucode to fail to initialize */
3345 if (!(priv->status & STATUS_INT_ENABLED)) {
3346 /* Shared IRQ */
3347 goto none;
3348 }
3349
3350 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3351 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3352
3353 if (inta == 0xFFFFFFFF) {
3354 /* Hardware disappeared */
3355 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3356 goto none;
3357 }
3358
3359 inta &= IPW_INTERRUPT_MASK;
3360
3361 if (!(inta & inta_mask)) {
3362 /* Shared interrupt */
3363 goto none;
3364 }
3365
3366 /* We disable the hardware interrupt here just to prevent unneeded
3367 * calls to be made. We disable this again within the actual
3368 * work tasklet, so if another part of the code re-enables the
3369 * interrupt, that is fine */
3370 ipw2100_disable_interrupts(priv);
3371
3372 tasklet_schedule(&priv->irq_tasklet);
3373 spin_unlock(&priv->low_lock);
3374
3375 return IRQ_HANDLED;
3376 none:
3377 spin_unlock(&priv->low_lock);
3378 return IRQ_NONE;
3379 }
3380
3381 static netdev_tx_t ipw2100_tx(struct libipw_txb *txb,
3382 struct net_device *dev, int pri)
3383 {
3384 struct ipw2100_priv *priv = libipw_priv(dev);
3385 struct list_head *element;
3386 struct ipw2100_tx_packet *packet;
3387 unsigned long flags;
3388
3389 spin_lock_irqsave(&priv->low_lock, flags);
3390
3391 if (!(priv->status & STATUS_ASSOCIATED)) {
3392 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3393 priv->net_dev->stats.tx_carrier_errors++;
3394 netif_stop_queue(dev);
3395 goto fail_unlock;
3396 }
3397
3398 if (list_empty(&priv->tx_free_list))
3399 goto fail_unlock;
3400
3401 element = priv->tx_free_list.next;
3402 packet = list_entry(element, struct ipw2100_tx_packet, list);
3403
3404 packet->info.d_struct.txb = txb;
3405
3406 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3407 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3408
3409 packet->jiffy_start = jiffies;
3410
3411 list_del(element);
3412 DEC_STAT(&priv->tx_free_stat);
3413
3414 list_add_tail(element, &priv->tx_pend_list);
3415 INC_STAT(&priv->tx_pend_stat);
3416
3417 ipw2100_tx_send_data(priv);
3418
3419 spin_unlock_irqrestore(&priv->low_lock, flags);
3420 return NETDEV_TX_OK;
3421
3422 fail_unlock:
3423 netif_stop_queue(dev);
3424 spin_unlock_irqrestore(&priv->low_lock, flags);
3425 return NETDEV_TX_BUSY;
3426 }
3427
3428 static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3429 {
3430 int i, j, err = -EINVAL;
3431 void *v;
3432 dma_addr_t p;
3433
3434 priv->msg_buffers =
3435 kmalloc_array(IPW_COMMAND_POOL_SIZE,
3436 sizeof(struct ipw2100_tx_packet),
3437 GFP_KERNEL);
3438 if (!priv->msg_buffers)
3439 return -ENOMEM;
3440
3441 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3442 v = pci_zalloc_consistent(priv->pci_dev,
3443 sizeof(struct ipw2100_cmd_header),
3444 &p);
3445 if (!v) {
3446 printk(KERN_ERR DRV_NAME ": "
3447 "%s: PCI alloc failed for msg "
3448 "buffers.\n", priv->net_dev->name);
3449 err = -ENOMEM;
3450 break;
3451 }
3452
3453 priv->msg_buffers[i].type = COMMAND;
3454 priv->msg_buffers[i].info.c_struct.cmd =
3455 (struct ipw2100_cmd_header *)v;
3456 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3457 }
3458
3459 if (i == IPW_COMMAND_POOL_SIZE)
3460 return 0;
3461
3462 for (j = 0; j < i; j++) {
3463 pci_free_consistent(priv->pci_dev,
3464 sizeof(struct ipw2100_cmd_header),
3465 priv->msg_buffers[j].info.c_struct.cmd,
3466 priv->msg_buffers[j].info.c_struct.
3467 cmd_phys);
3468 }
3469
3470 kfree(priv->msg_buffers);
3471 priv->msg_buffers = NULL;
3472
3473 return err;
3474 }
3475
3476 static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3477 {
3478 int i;
3479
3480 INIT_LIST_HEAD(&priv->msg_free_list);
3481 INIT_LIST_HEAD(&priv->msg_pend_list);
3482
3483 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3484 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3485 SET_STAT(&priv->msg_free_stat, i);
3486
3487 return 0;
3488 }
3489
3490 static void ipw2100_msg_free(struct ipw2100_priv *priv)
3491 {
3492 int i;
3493
3494 if (!priv->msg_buffers)
3495 return;
3496
3497 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3498 pci_free_consistent(priv->pci_dev,
3499 sizeof(struct ipw2100_cmd_header),
3500 priv->msg_buffers[i].info.c_struct.cmd,
3501 priv->msg_buffers[i].info.c_struct.
3502 cmd_phys);
3503 }
3504
3505 kfree(priv->msg_buffers);
3506 priv->msg_buffers = NULL;
3507 }
3508
3509 static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3510 char *buf)
3511 {
3512 struct pci_dev *pci_dev = to_pci_dev(d);
3513 char *out = buf;
3514 int i, j;
3515 u32 val;
3516
3517 for (i = 0; i < 16; i++) {
3518 out += sprintf(out, "[%08X] ", i * 16);
3519 for (j = 0; j < 16; j += 4) {
3520 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3521 out += sprintf(out, "%08X ", val);
3522 }
3523 out += sprintf(out, "\n");
3524 }
3525
3526 return out - buf;
3527 }
3528
3529 static DEVICE_ATTR(pci, 0444, show_pci, NULL);
3530
3531 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3532 char *buf)
3533 {
3534 struct ipw2100_priv *p = dev_get_drvdata(d);
3535 return sprintf(buf, "0x%08x\n", (int)p->config);
3536 }
3537
3538 static DEVICE_ATTR(cfg, 0444, show_cfg, NULL);
3539
3540 static ssize_t show_status(struct device *d, struct device_attribute *attr,
3541 char *buf)
3542 {
3543 struct ipw2100_priv *p = dev_get_drvdata(d);
3544 return sprintf(buf, "0x%08x\n", (int)p->status);
3545 }
3546
3547 static DEVICE_ATTR(status, 0444, show_status, NULL);
3548
3549 static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3550 char *buf)
3551 {
3552 struct ipw2100_priv *p = dev_get_drvdata(d);
3553 return sprintf(buf, "0x%08x\n", (int)p->capability);
3554 }
3555
3556 static DEVICE_ATTR(capability, 0444, show_capability, NULL);
3557
3558 #define IPW2100_REG(x) { IPW_ ##x, #x }
3559 static const struct {
3560 u32 addr;
3561 const char *name;
3562 } hw_data[] = {
3563 IPW2100_REG(REG_GP_CNTRL),
3564 IPW2100_REG(REG_GPIO),
3565 IPW2100_REG(REG_INTA),
3566 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3567 #define IPW2100_NIC(x, s) { x, #x, s }
3568 static const struct {
3569 u32 addr;
3570 const char *name;
3571 size_t size;
3572 } nic_data[] = {
3573 IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3574 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3575 #define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3576 static const struct {
3577 u8 index;
3578 const char *name;
3579 const char *desc;
3580 } ord_data[] = {
3581 IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3582 IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3583 "successful Host Tx's (MSDU)"),
3584 IPW2100_ORD(STAT_TX_DIR_DATA,
3585 "successful Directed Tx's (MSDU)"),
3586 IPW2100_ORD(STAT_TX_DIR_DATA1,
3587 "successful Directed Tx's (MSDU) @ 1MB"),
3588 IPW2100_ORD(STAT_TX_DIR_DATA2,
3589 "successful Directed Tx's (MSDU) @ 2MB"),
3590 IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3591 "successful Directed Tx's (MSDU) @ 5_5MB"),
3592 IPW2100_ORD(STAT_TX_DIR_DATA11,
3593 "successful Directed Tx's (MSDU) @ 11MB"),
3594 IPW2100_ORD(STAT_TX_NODIR_DATA1,
3595 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3596 IPW2100_ORD(STAT_TX_NODIR_DATA2,
3597 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3598 IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3599 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3600 IPW2100_ORD(STAT_TX_NODIR_DATA11,
3601 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3602 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3603 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3604 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3605 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3606 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3607 IPW2100_ORD(STAT_TX_ASSN_RESP,
3608 "successful Association response Tx's"),
3609 IPW2100_ORD(STAT_TX_REASSN,
3610 "successful Reassociation Tx's"),
3611 IPW2100_ORD(STAT_TX_REASSN_RESP,
3612 "successful Reassociation response Tx's"),
3613 IPW2100_ORD(STAT_TX_PROBE,
3614 "probes successfully transmitted"),
3615 IPW2100_ORD(STAT_TX_PROBE_RESP,
3616 "probe responses successfully transmitted"),
3617 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3618 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3619 IPW2100_ORD(STAT_TX_DISASSN,
3620 "successful Disassociation TX"),
3621 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3622 IPW2100_ORD(STAT_TX_DEAUTH,
3623 "successful Deauthentication TX"),
3624 IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3625 "Total successful Tx data bytes"),
3626 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3627 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3628 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3629 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3630 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3631 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3632 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3633 "times max tries in a hop failed"),
3634 IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3635 "times disassociation failed"),
3636 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3637 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3638 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3639 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3640 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3641 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3642 IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3643 "directed packets at 5.5MB"),
3644 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3645 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3646 IPW2100_ORD(STAT_RX_NODIR_DATA1,
3647 "nondirected packets at 1MB"),
3648 IPW2100_ORD(STAT_RX_NODIR_DATA2,
3649 "nondirected packets at 2MB"),
3650 IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3651 "nondirected packets at 5.5MB"),
3652 IPW2100_ORD(STAT_RX_NODIR_DATA11,
3653 "nondirected packets at 11MB"),
3654 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3655 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3656 "Rx CTS"),
3657 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3658 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3659 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3660 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3661 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3662 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3663 IPW2100_ORD(STAT_RX_REASSN_RESP,
3664 "Reassociation response Rx's"),
3665 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3666 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3667 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3668 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3669 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3670 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3671 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3672 IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3673 "Total rx data bytes received"),
3674 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3675 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3676 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3677 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3678 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3679 IPW2100_ORD(STAT_RX_DUPLICATE1,
3680 "duplicate rx packets at 1MB"),
3681 IPW2100_ORD(STAT_RX_DUPLICATE2,
3682 "duplicate rx packets at 2MB"),
3683 IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3684 "duplicate rx packets at 5.5MB"),
3685 IPW2100_ORD(STAT_RX_DUPLICATE11,
3686 "duplicate rx packets at 11MB"),
3687 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3688 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3689 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3690 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3691 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3692 "rx frames with invalid protocol"),
3693 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3694 IPW2100_ORD(STAT_RX_NO_BUFFER,
3695 "rx frames rejected due to no buffer"),
3696 IPW2100_ORD(STAT_RX_MISSING_FRAG,
3697 "rx frames dropped due to missing fragment"),
3698 IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3699 "rx frames dropped due to non-sequential fragment"),
3700 IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3701 "rx frames dropped due to unmatched 1st frame"),
3702 IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3703 "rx frames dropped due to uncompleted frame"),
3704 IPW2100_ORD(STAT_RX_ICV_ERRORS,
3705 "ICV errors during decryption"),
3706 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3707 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3708 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3709 "poll response timeouts"),
3710 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3711 "timeouts waiting for last {broad,multi}cast pkt"),
3712 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3713 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3714 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3715 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3716 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3717 "current calculation of % missed beacons"),
3718 IPW2100_ORD(STAT_PERCENT_RETRIES,
3719 "current calculation of % missed tx retries"),
3720 IPW2100_ORD(ASSOCIATED_AP_PTR,
3721 "0 if not associated, else pointer to AP table entry"),
3722 IPW2100_ORD(AVAILABLE_AP_CNT,
3723 "AP's described in the AP table"),
3724 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3725 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3726 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3727 IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3728 "failures due to response fail"),
3729 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3730 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3731 IPW2100_ORD(STAT_ROAM_INHIBIT,
3732 "times roaming was inhibited due to activity"),
3733 IPW2100_ORD(RSSI_AT_ASSN,
3734 "RSSI of associated AP at time of association"),
3735 IPW2100_ORD(STAT_ASSN_CAUSE1,
3736 "reassociation: no probe response or TX on hop"),
3737 IPW2100_ORD(STAT_ASSN_CAUSE2,
3738 "reassociation: poor tx/rx quality"),
3739 IPW2100_ORD(STAT_ASSN_CAUSE3,
3740 "reassociation: tx/rx quality (excessive AP load"),
3741 IPW2100_ORD(STAT_ASSN_CAUSE4,
3742 "reassociation: AP RSSI level"),
3743 IPW2100_ORD(STAT_ASSN_CAUSE5,
3744 "reassociations due to load leveling"),
3745 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3746 IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3747 "times authentication response failed"),
3748 IPW2100_ORD(STATION_TABLE_CNT,
3749 "entries in association table"),
3750 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3751 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3752 IPW2100_ORD(COUNTRY_CODE,
3753 "IEEE country code as recv'd from beacon"),
3754 IPW2100_ORD(COUNTRY_CHANNELS,
3755 "channels supported by country"),
3756 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3757 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3758 IPW2100_ORD(ANTENNA_DIVERSITY,
3759 "TRUE if antenna diversity is disabled"),
3760 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3761 IPW2100_ORD(OUR_FREQ,
3762 "current radio freq lower digits - channel ID"),
3763 IPW2100_ORD(RTC_TIME, "current RTC time"),
3764 IPW2100_ORD(PORT_TYPE, "operating mode"),
3765 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3766 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3767 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3768 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3769 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3770 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3771 IPW2100_ORD(CAPABILITIES,
3772 "Management frame capability field"),
3773 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3774 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3775 IPW2100_ORD(RTS_THRESHOLD,
3776 "Min packet length for RTS handshaking"),
3777 IPW2100_ORD(INT_MODE, "International mode"),
3778 IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3779 "protocol frag threshold"),
3780 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3781 "EEPROM offset in SRAM"),
3782 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3783 "EEPROM size in SRAM"),
3784 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3785 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3786 "EEPROM IBSS 11b channel set"),
3787 IPW2100_ORD(MAC_VERSION, "MAC Version"),
3788 IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3789 IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3790 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3791 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3792
3793 static ssize_t show_registers(struct device *d, struct device_attribute *attr,
3794 char *buf)
3795 {
3796 int i;
3797 struct ipw2100_priv *priv = dev_get_drvdata(d);
3798 struct net_device *dev = priv->net_dev;
3799 char *out = buf;
3800 u32 val = 0;
3801
3802 out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3803
3804 for (i = 0; i < ARRAY_SIZE(hw_data); i++) {
3805 read_register(dev, hw_data[i].addr, &val);
3806 out += sprintf(out, "%30s [%08X] : %08X\n",
3807 hw_data[i].name, hw_data[i].addr, val);
3808 }
3809
3810 return out - buf;
3811 }
3812
3813 static DEVICE_ATTR(registers, 0444, show_registers, NULL);
3814
3815 static ssize_t show_hardware(struct device *d, struct device_attribute *attr,
3816 char *buf)
3817 {
3818 struct ipw2100_priv *priv = dev_get_drvdata(d);
3819 struct net_device *dev = priv->net_dev;
3820 char *out = buf;
3821 int i;
3822
3823 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3824
3825 for (i = 0; i < ARRAY_SIZE(nic_data); i++) {
3826 u8 tmp8;
3827 u16 tmp16;
3828 u32 tmp32;
3829
3830 switch (nic_data[i].size) {
3831 case 1:
3832 read_nic_byte(dev, nic_data[i].addr, &tmp8);
3833 out += sprintf(out, "%30s [%08X] : %02X\n",
3834 nic_data[i].name, nic_data[i].addr,
3835 tmp8);
3836 break;
3837 case 2:
3838 read_nic_word(dev, nic_data[i].addr, &tmp16);
3839 out += sprintf(out, "%30s [%08X] : %04X\n",
3840 nic_data[i].name, nic_data[i].addr,
3841 tmp16);
3842 break;
3843 case 4:
3844 read_nic_dword(dev, nic_data[i].addr, &tmp32);
3845 out += sprintf(out, "%30s [%08X] : %08X\n",
3846 nic_data[i].name, nic_data[i].addr,
3847 tmp32);
3848 break;
3849 }
3850 }
3851 return out - buf;
3852 }
3853
3854 static DEVICE_ATTR(hardware, 0444, show_hardware, NULL);
3855
3856 static ssize_t show_memory(struct device *d, struct device_attribute *attr,
3857 char *buf)
3858 {
3859 struct ipw2100_priv *priv = dev_get_drvdata(d);
3860 struct net_device *dev = priv->net_dev;
3861 static unsigned long loop = 0;
3862 int len = 0;
3863 u32 buffer[4];
3864 int i;
3865 char line[81];
3866
3867 if (loop >= 0x30000)
3868 loop = 0;
3869
3870 /* sysfs provides us PAGE_SIZE buffer */
3871 while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3872
3873 if (priv->snapshot[0])
3874 for (i = 0; i < 4; i++)
3875 buffer[i] =
3876 *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3877 else
3878 for (i = 0; i < 4; i++)
3879 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3880
3881 if (priv->dump_raw)
3882 len += sprintf(buf + len,
3883 "%c%c%c%c"
3884 "%c%c%c%c"
3885 "%c%c%c%c"
3886 "%c%c%c%c",
3887 ((u8 *) buffer)[0x0],
3888 ((u8 *) buffer)[0x1],
3889 ((u8 *) buffer)[0x2],
3890 ((u8 *) buffer)[0x3],
3891 ((u8 *) buffer)[0x4],
3892 ((u8 *) buffer)[0x5],
3893 ((u8 *) buffer)[0x6],
3894 ((u8 *) buffer)[0x7],
3895 ((u8 *) buffer)[0x8],
3896 ((u8 *) buffer)[0x9],
3897 ((u8 *) buffer)[0xa],
3898 ((u8 *) buffer)[0xb],
3899 ((u8 *) buffer)[0xc],
3900 ((u8 *) buffer)[0xd],
3901 ((u8 *) buffer)[0xe],
3902 ((u8 *) buffer)[0xf]);
3903 else
3904 len += sprintf(buf + len, "%s\n",
3905 snprint_line(line, sizeof(line),
3906 (u8 *) buffer, 16, loop));
3907 loop += 16;
3908 }
3909
3910 return len;
3911 }
3912
3913 static ssize_t store_memory(struct device *d, struct device_attribute *attr,
3914 const char *buf, size_t count)
3915 {
3916 struct ipw2100_priv *priv = dev_get_drvdata(d);
3917 struct net_device *dev = priv->net_dev;
3918 const char *p = buf;
3919
3920 (void)dev; /* kill unused-var warning for debug-only code */
3921
3922 if (count < 1)
3923 return count;
3924
3925 if (p[0] == '1' ||
3926 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3927 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3928 dev->name);
3929 priv->dump_raw = 1;
3930
3931 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3932 tolower(p[1]) == 'f')) {
3933 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3934 dev->name);
3935 priv->dump_raw = 0;
3936
3937 } else if (tolower(p[0]) == 'r') {
3938 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3939 ipw2100_snapshot_free(priv);
3940
3941 } else
3942 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3943 "reset = clear memory snapshot\n", dev->name);
3944
3945 return count;
3946 }
3947
3948 static DEVICE_ATTR(memory, 0644, show_memory, store_memory);
3949
3950 static ssize_t show_ordinals(struct device *d, struct device_attribute *attr,
3951 char *buf)
3952 {
3953 struct ipw2100_priv *priv = dev_get_drvdata(d);
3954 u32 val = 0;
3955 int len = 0;
3956 u32 val_len;
3957 static int loop = 0;
3958
3959 if (priv->status & STATUS_RF_KILL_MASK)
3960 return 0;
3961
3962 if (loop >= ARRAY_SIZE(ord_data))
3963 loop = 0;
3964
3965 /* sysfs provides us PAGE_SIZE buffer */
3966 while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) {
3967 val_len = sizeof(u32);
3968
3969 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3970 &val_len))
3971 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n",
3972 ord_data[loop].index,
3973 ord_data[loop].desc);
3974 else
3975 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3976 ord_data[loop].index, val,
3977 ord_data[loop].desc);
3978 loop++;
3979 }
3980
3981 return len;
3982 }
3983
3984 static DEVICE_ATTR(ordinals, 0444, show_ordinals, NULL);
3985
3986 static ssize_t show_stats(struct device *d, struct device_attribute *attr,
3987 char *buf)
3988 {
3989 struct ipw2100_priv *priv = dev_get_drvdata(d);
3990 char *out = buf;
3991
3992 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3993 priv->interrupts, priv->tx_interrupts,
3994 priv->rx_interrupts, priv->inta_other);
3995 out += sprintf(out, "firmware resets: %d\n", priv->resets);
3996 out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3997 #ifdef CONFIG_IPW2100_DEBUG
3998 out += sprintf(out, "packet mismatch image: %s\n",
3999 priv->snapshot[0] ? "YES" : "NO");
4000 #endif
4001
4002 return out - buf;
4003 }
4004
4005 static DEVICE_ATTR(stats, 0444, show_stats, NULL);
4006
4007 static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
4008 {
4009 int err;
4010
4011 if (mode == priv->ieee->iw_mode)
4012 return 0;
4013
4014 err = ipw2100_disable_adapter(priv);
4015 if (err) {
4016 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
4017 priv->net_dev->name, err);
4018 return err;
4019 }
4020
4021 switch (mode) {
4022 case IW_MODE_INFRA:
4023 priv->net_dev->type = ARPHRD_ETHER;
4024 break;
4025 case IW_MODE_ADHOC:
4026 priv->net_dev->type = ARPHRD_ETHER;
4027 break;
4028 #ifdef CONFIG_IPW2100_MONITOR
4029 case IW_MODE_MONITOR:
4030 priv->last_mode = priv->ieee->iw_mode;
4031 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
4032 break;
4033 #endif /* CONFIG_IPW2100_MONITOR */
4034 }
4035
4036 priv->ieee->iw_mode = mode;
4037
4038 #ifdef CONFIG_PM
4039 /* Indicate ipw2100_download_firmware download firmware
4040 * from disk instead of memory. */
4041 ipw2100_firmware.version = 0;
4042 #endif
4043
4044 printk(KERN_INFO "%s: Resetting on mode change.\n", priv->net_dev->name);
4045 priv->reset_backoff = 0;
4046 schedule_reset(priv);
4047
4048 return 0;
4049 }
4050
4051 static ssize_t show_internals(struct device *d, struct device_attribute *attr,
4052 char *buf)
4053 {
4054 struct ipw2100_priv *priv = dev_get_drvdata(d);
4055 int len = 0;
4056
4057 #define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
4058
4059 if (priv->status & STATUS_ASSOCIATED)
4060 len += sprintf(buf + len, "connected: %llu\n",
4061 ktime_get_boottime_seconds() - priv->connect_start);
4062 else
4063 len += sprintf(buf + len, "not connected\n");
4064
4065 DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p");
4066 DUMP_VAR(status, "08lx");
4067 DUMP_VAR(config, "08lx");
4068 DUMP_VAR(capability, "08lx");
4069
4070 len +=
4071 sprintf(buf + len, "last_rtc: %lu\n",
4072 (unsigned long)priv->last_rtc);
4073
4074 DUMP_VAR(fatal_error, "d");
4075 DUMP_VAR(stop_hang_check, "d");
4076 DUMP_VAR(stop_rf_kill, "d");
4077 DUMP_VAR(messages_sent, "d");
4078
4079 DUMP_VAR(tx_pend_stat.value, "d");
4080 DUMP_VAR(tx_pend_stat.hi, "d");
4081
4082 DUMP_VAR(tx_free_stat.value, "d");
4083 DUMP_VAR(tx_free_stat.lo, "d");
4084
4085 DUMP_VAR(msg_free_stat.value, "d");
4086 DUMP_VAR(msg_free_stat.lo, "d");
4087
4088 DUMP_VAR(msg_pend_stat.value, "d");
4089 DUMP_VAR(msg_pend_stat.hi, "d");
4090
4091 DUMP_VAR(fw_pend_stat.value, "d");
4092 DUMP_VAR(fw_pend_stat.hi, "d");
4093
4094 DUMP_VAR(txq_stat.value, "d");
4095 DUMP_VAR(txq_stat.lo, "d");
4096
4097 DUMP_VAR(ieee->scans, "d");
4098 DUMP_VAR(reset_backoff, "lld");
4099
4100 return len;
4101 }
4102
4103 static DEVICE_ATTR(internals, 0444, show_internals, NULL);
4104
4105 static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr,
4106 char *buf)
4107 {
4108 struct ipw2100_priv *priv = dev_get_drvdata(d);
4109 char essid[IW_ESSID_MAX_SIZE + 1];
4110 u8 bssid[ETH_ALEN];
4111 u32 chan = 0;
4112 char *out = buf;
4113 unsigned int length;
4114 int ret;
4115
4116 if (priv->status & STATUS_RF_KILL_MASK)
4117 return 0;
4118
4119 memset(essid, 0, sizeof(essid));
4120 memset(bssid, 0, sizeof(bssid));
4121
4122 length = IW_ESSID_MAX_SIZE;
4123 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
4124 if (ret)
4125 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4126 __LINE__);
4127
4128 length = sizeof(bssid);
4129 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
4130 bssid, &length);
4131 if (ret)
4132 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4133 __LINE__);
4134
4135 length = sizeof(u32);
4136 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
4137 if (ret)
4138 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4139 __LINE__);
4140
4141 out += sprintf(out, "ESSID: %s\n", essid);
4142 out += sprintf(out, "BSSID: %pM\n", bssid);
4143 out += sprintf(out, "Channel: %d\n", chan);
4144
4145 return out - buf;
4146 }
4147
4148 static DEVICE_ATTR(bssinfo, 0444, show_bssinfo, NULL);
4149
4150 #ifdef CONFIG_IPW2100_DEBUG
4151 static ssize_t debug_level_show(struct device_driver *d, char *buf)
4152 {
4153 return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
4154 }
4155
4156 static ssize_t debug_level_store(struct device_driver *d,
4157 const char *buf, size_t count)
4158 {
4159 u32 val;
4160 int ret;
4161
4162 ret = kstrtou32(buf, 0, &val);
4163 if (ret)
4164 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4165 else
4166 ipw2100_debug_level = val;
4167
4168 return strnlen(buf, count);
4169 }
4170 static DRIVER_ATTR_RW(debug_level);
4171 #endif /* CONFIG_IPW2100_DEBUG */
4172
4173 static ssize_t show_fatal_error(struct device *d,
4174 struct device_attribute *attr, char *buf)
4175 {
4176 struct ipw2100_priv *priv = dev_get_drvdata(d);
4177 char *out = buf;
4178 int i;
4179
4180 if (priv->fatal_error)
4181 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4182 else
4183 out += sprintf(out, "0\n");
4184
4185 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4186 if (!priv->fatal_errors[(priv->fatal_index - i) %
4187 IPW2100_ERROR_QUEUE])
4188 continue;
4189
4190 out += sprintf(out, "%d. 0x%08X\n", i,
4191 priv->fatal_errors[(priv->fatal_index - i) %
4192 IPW2100_ERROR_QUEUE]);
4193 }
4194
4195 return out - buf;
4196 }
4197
4198 static ssize_t store_fatal_error(struct device *d,
4199 struct device_attribute *attr, const char *buf,
4200 size_t count)
4201 {
4202 struct ipw2100_priv *priv = dev_get_drvdata(d);
4203 schedule_reset(priv);
4204 return count;
4205 }
4206
4207 static DEVICE_ATTR(fatal_error, 0644, show_fatal_error, store_fatal_error);
4208
4209 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
4210 char *buf)
4211 {
4212 struct ipw2100_priv *priv = dev_get_drvdata(d);
4213 return sprintf(buf, "%d\n", priv->ieee->scan_age);
4214 }
4215
4216 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
4217 const char *buf, size_t count)
4218 {
4219 struct ipw2100_priv *priv = dev_get_drvdata(d);
4220 struct net_device *dev = priv->net_dev;
4221 unsigned long val;
4222 int ret;
4223
4224 (void)dev; /* kill unused-var warning for debug-only code */
4225
4226 IPW_DEBUG_INFO("enter\n");
4227
4228 ret = kstrtoul(buf, 0, &val);
4229 if (ret) {
4230 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4231 } else {
4232 priv->ieee->scan_age = val;
4233 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4234 }
4235
4236 IPW_DEBUG_INFO("exit\n");
4237 return strnlen(buf, count);
4238 }
4239
4240 static DEVICE_ATTR(scan_age, 0644, show_scan_age, store_scan_age);
4241
4242 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
4243 char *buf)
4244 {
4245 /* 0 - RF kill not enabled
4246 1 - SW based RF kill active (sysfs)
4247 2 - HW based RF kill active
4248 3 - Both HW and SW baed RF kill active */
4249 struct ipw2100_priv *priv = dev_get_drvdata(d);
4250 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4251 (rf_kill_active(priv) ? 0x2 : 0x0);
4252 return sprintf(buf, "%i\n", val);
4253 }
4254
4255 static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4256 {
4257 if ((disable_radio ? 1 : 0) ==
4258 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4259 return 0;
4260
4261 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
4262 disable_radio ? "OFF" : "ON");
4263
4264 mutex_lock(&priv->action_mutex);
4265
4266 if (disable_radio) {
4267 priv->status |= STATUS_RF_KILL_SW;
4268 ipw2100_down(priv);
4269 } else {
4270 priv->status &= ~STATUS_RF_KILL_SW;
4271 if (rf_kill_active(priv)) {
4272 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4273 "disabled by HW switch\n");
4274 /* Make sure the RF_KILL check timer is running */
4275 priv->stop_rf_kill = 0;
4276 mod_delayed_work(system_wq, &priv->rf_kill,
4277 round_jiffies_relative(HZ));
4278 } else
4279 schedule_reset(priv);
4280 }
4281
4282 mutex_unlock(&priv->action_mutex);
4283 return 1;
4284 }
4285
4286 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
4287 const char *buf, size_t count)
4288 {
4289 struct ipw2100_priv *priv = dev_get_drvdata(d);
4290 ipw_radio_kill_sw(priv, buf[0] == '1');
4291 return count;
4292 }
4293
4294 static DEVICE_ATTR(rf_kill, 0644, show_rf_kill, store_rf_kill);
4295
4296 static struct attribute *ipw2100_sysfs_entries[] = {
4297 &dev_attr_hardware.attr,
4298 &dev_attr_registers.attr,
4299 &dev_attr_ordinals.attr,
4300 &dev_attr_pci.attr,
4301 &dev_attr_stats.attr,
4302 &dev_attr_internals.attr,
4303 &dev_attr_bssinfo.attr,
4304 &dev_attr_memory.attr,
4305 &dev_attr_scan_age.attr,
4306 &dev_attr_fatal_error.attr,
4307 &dev_attr_rf_kill.attr,
4308 &dev_attr_cfg.attr,
4309 &dev_attr_status.attr,
4310 &dev_attr_capability.attr,
4311 NULL,
4312 };
4313
4314 static const struct attribute_group ipw2100_attribute_group = {
4315 .attrs = ipw2100_sysfs_entries,
4316 };
4317
4318 static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4319 {
4320 struct ipw2100_status_queue *q = &priv->status_queue;
4321
4322 IPW_DEBUG_INFO("enter\n");
4323
4324 q->size = entries * sizeof(struct ipw2100_status);
4325 q->drv = pci_zalloc_consistent(priv->pci_dev, q->size, &q->nic);
4326 if (!q->drv) {
4327 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4328 return -ENOMEM;
4329 }
4330
4331 IPW_DEBUG_INFO("exit\n");
4332
4333 return 0;
4334 }
4335
4336 static void status_queue_free(struct ipw2100_priv *priv)
4337 {
4338 IPW_DEBUG_INFO("enter\n");
4339
4340 if (priv->status_queue.drv) {
4341 pci_free_consistent(priv->pci_dev, priv->status_queue.size,
4342 priv->status_queue.drv,
4343 priv->status_queue.nic);
4344 priv->status_queue.drv = NULL;
4345 }
4346
4347 IPW_DEBUG_INFO("exit\n");
4348 }
4349
4350 static int bd_queue_allocate(struct ipw2100_priv *priv,
4351 struct ipw2100_bd_queue *q, int entries)
4352 {
4353 IPW_DEBUG_INFO("enter\n");
4354
4355 memset(q, 0, sizeof(struct ipw2100_bd_queue));
4356
4357 q->entries = entries;
4358 q->size = entries * sizeof(struct ipw2100_bd);
4359 q->drv = pci_zalloc_consistent(priv->pci_dev, q->size, &q->nic);
4360 if (!q->drv) {
4361 IPW_DEBUG_INFO
4362 ("can't allocate shared memory for buffer descriptors\n");
4363 return -ENOMEM;
4364 }
4365
4366 IPW_DEBUG_INFO("exit\n");
4367
4368 return 0;
4369 }
4370
4371 static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4372 {
4373 IPW_DEBUG_INFO("enter\n");
4374
4375 if (!q)
4376 return;
4377
4378 if (q->drv) {
4379 pci_free_consistent(priv->pci_dev, q->size, q->drv, q->nic);
4380 q->drv = NULL;
4381 }
4382
4383 IPW_DEBUG_INFO("exit\n");
4384 }
4385
4386 static void bd_queue_initialize(struct ipw2100_priv *priv,
4387 struct ipw2100_bd_queue *q, u32 base, u32 size,
4388 u32 r, u32 w)
4389 {
4390 IPW_DEBUG_INFO("enter\n");
4391
4392 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4393 (u32) q->nic);
4394
4395 write_register(priv->net_dev, base, q->nic);
4396 write_register(priv->net_dev, size, q->entries);
4397 write_register(priv->net_dev, r, q->oldest);
4398 write_register(priv->net_dev, w, q->next);
4399
4400 IPW_DEBUG_INFO("exit\n");
4401 }
4402
4403 static void ipw2100_kill_works(struct ipw2100_priv *priv)
4404 {
4405 priv->stop_rf_kill = 1;
4406 priv->stop_hang_check = 1;
4407 cancel_delayed_work_sync(&priv->reset_work);
4408 cancel_delayed_work_sync(&priv->security_work);
4409 cancel_delayed_work_sync(&priv->wx_event_work);
4410 cancel_delayed_work_sync(&priv->hang_check);
4411 cancel_delayed_work_sync(&priv->rf_kill);
4412 cancel_delayed_work_sync(&priv->scan_event);
4413 }
4414
4415 static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4416 {
4417 int i, j, err;
4418 void *v;
4419 dma_addr_t p;
4420
4421 IPW_DEBUG_INFO("enter\n");
4422
4423 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4424 if (err) {
4425 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4426 priv->net_dev->name);
4427 return err;
4428 }
4429
4430 priv->tx_buffers = kmalloc_array(TX_PENDED_QUEUE_LENGTH,
4431 sizeof(struct ipw2100_tx_packet),
4432 GFP_ATOMIC);
4433 if (!priv->tx_buffers) {
4434 bd_queue_free(priv, &priv->tx_queue);
4435 return -ENOMEM;
4436 }
4437
4438 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4439 v = pci_alloc_consistent(priv->pci_dev,
4440 sizeof(struct ipw2100_data_header),
4441 &p);
4442 if (!v) {
4443 printk(KERN_ERR DRV_NAME
4444 ": %s: PCI alloc failed for tx " "buffers.\n",
4445 priv->net_dev->name);
4446 err = -ENOMEM;
4447 break;
4448 }
4449
4450 priv->tx_buffers[i].type = DATA;
4451 priv->tx_buffers[i].info.d_struct.data =
4452 (struct ipw2100_data_header *)v;
4453 priv->tx_buffers[i].info.d_struct.data_phys = p;
4454 priv->tx_buffers[i].info.d_struct.txb = NULL;
4455 }
4456
4457 if (i == TX_PENDED_QUEUE_LENGTH)
4458 return 0;
4459
4460 for (j = 0; j < i; j++) {
4461 pci_free_consistent(priv->pci_dev,
4462 sizeof(struct ipw2100_data_header),
4463 priv->tx_buffers[j].info.d_struct.data,
4464 priv->tx_buffers[j].info.d_struct.
4465 data_phys);
4466 }
4467
4468 kfree(priv->tx_buffers);
4469 priv->tx_buffers = NULL;
4470
4471 return err;
4472 }
4473
4474 static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4475 {
4476 int i;
4477
4478 IPW_DEBUG_INFO("enter\n");
4479
4480 /*
4481 * reinitialize packet info lists
4482 */
4483 INIT_LIST_HEAD(&priv->fw_pend_list);
4484 INIT_STAT(&priv->fw_pend_stat);
4485
4486 /*
4487 * reinitialize lists
4488 */
4489 INIT_LIST_HEAD(&priv->tx_pend_list);
4490 INIT_LIST_HEAD(&priv->tx_free_list);
4491 INIT_STAT(&priv->tx_pend_stat);
4492 INIT_STAT(&priv->tx_free_stat);
4493
4494 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4495 /* We simply drop any SKBs that have been queued for
4496 * transmit */
4497 if (priv->tx_buffers[i].info.d_struct.txb) {
4498 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4499 txb);
4500 priv->tx_buffers[i].info.d_struct.txb = NULL;
4501 }
4502
4503 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4504 }
4505
4506 SET_STAT(&priv->tx_free_stat, i);
4507
4508 priv->tx_queue.oldest = 0;
4509 priv->tx_queue.available = priv->tx_queue.entries;
4510 priv->tx_queue.next = 0;
4511 INIT_STAT(&priv->txq_stat);
4512 SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4513
4514 bd_queue_initialize(priv, &priv->tx_queue,
4515 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4516 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4517 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4518 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4519
4520 IPW_DEBUG_INFO("exit\n");
4521
4522 }
4523
4524 static void ipw2100_tx_free(struct ipw2100_priv *priv)
4525 {
4526 int i;
4527
4528 IPW_DEBUG_INFO("enter\n");
4529
4530 bd_queue_free(priv, &priv->tx_queue);
4531
4532 if (!priv->tx_buffers)
4533 return;
4534
4535 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4536 if (priv->tx_buffers[i].info.d_struct.txb) {
4537 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4538 txb);
4539 priv->tx_buffers[i].info.d_struct.txb = NULL;
4540 }
4541 if (priv->tx_buffers[i].info.d_struct.data)
4542 pci_free_consistent(priv->pci_dev,
4543 sizeof(struct ipw2100_data_header),
4544 priv->tx_buffers[i].info.d_struct.
4545 data,
4546 priv->tx_buffers[i].info.d_struct.
4547 data_phys);
4548 }
4549
4550 kfree(priv->tx_buffers);
4551 priv->tx_buffers = NULL;
4552
4553 IPW_DEBUG_INFO("exit\n");
4554 }
4555
4556 static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4557 {
4558 int i, j, err = -EINVAL;
4559
4560 IPW_DEBUG_INFO("enter\n");
4561
4562 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4563 if (err) {
4564 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4565 return err;
4566 }
4567
4568 err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4569 if (err) {
4570 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4571 bd_queue_free(priv, &priv->rx_queue);
4572 return err;
4573 }
4574
4575 /*
4576 * allocate packets
4577 */
4578 priv->rx_buffers = kmalloc_array(RX_QUEUE_LENGTH,
4579 sizeof(struct ipw2100_rx_packet),
4580 GFP_KERNEL);
4581 if (!priv->rx_buffers) {
4582 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4583
4584 bd_queue_free(priv, &priv->rx_queue);
4585
4586 status_queue_free(priv);
4587
4588 return -ENOMEM;
4589 }
4590
4591 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4592 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4593
4594 err = ipw2100_alloc_skb(priv, packet);
4595 if (unlikely(err)) {
4596 err = -ENOMEM;
4597 break;
4598 }
4599
4600 /* The BD holds the cache aligned address */
4601 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4602 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4603 priv->status_queue.drv[i].status_fields = 0;
4604 }
4605
4606 if (i == RX_QUEUE_LENGTH)
4607 return 0;
4608
4609 for (j = 0; j < i; j++) {
4610 pci_unmap_single(priv->pci_dev, priv->rx_buffers[j].dma_addr,
4611 sizeof(struct ipw2100_rx_packet),
4612 PCI_DMA_FROMDEVICE);
4613 dev_kfree_skb(priv->rx_buffers[j].skb);
4614 }
4615
4616 kfree(priv->rx_buffers);
4617 priv->rx_buffers = NULL;
4618
4619 bd_queue_free(priv, &priv->rx_queue);
4620
4621 status_queue_free(priv);
4622
4623 return err;
4624 }
4625
4626 static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4627 {
4628 IPW_DEBUG_INFO("enter\n");
4629
4630 priv->rx_queue.oldest = 0;
4631 priv->rx_queue.available = priv->rx_queue.entries - 1;
4632 priv->rx_queue.next = priv->rx_queue.entries - 1;
4633
4634 INIT_STAT(&priv->rxq_stat);
4635 SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4636
4637 bd_queue_initialize(priv, &priv->rx_queue,
4638 IPW_MEM_HOST_SHARED_RX_BD_BASE,
4639 IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4640 IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4641 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4642
4643 /* set up the status queue */
4644 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4645 priv->status_queue.nic);
4646
4647 IPW_DEBUG_INFO("exit\n");
4648 }
4649
4650 static void ipw2100_rx_free(struct ipw2100_priv *priv)
4651 {
4652 int i;
4653
4654 IPW_DEBUG_INFO("enter\n");
4655
4656 bd_queue_free(priv, &priv->rx_queue);
4657 status_queue_free(priv);
4658
4659 if (!priv->rx_buffers)
4660 return;
4661
4662 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4663 if (priv->rx_buffers[i].rxp) {
4664 pci_unmap_single(priv->pci_dev,
4665 priv->rx_buffers[i].dma_addr,
4666 sizeof(struct ipw2100_rx),
4667 PCI_DMA_FROMDEVICE);
4668 dev_kfree_skb(priv->rx_buffers[i].skb);
4669 }
4670 }
4671
4672 kfree(priv->rx_buffers);
4673 priv->rx_buffers = NULL;
4674
4675 IPW_DEBUG_INFO("exit\n");
4676 }
4677
4678 static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4679 {
4680 u32 length = ETH_ALEN;
4681 u8 addr[ETH_ALEN];
4682
4683 int err;
4684
4685 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length);
4686 if (err) {
4687 IPW_DEBUG_INFO("MAC address read failed\n");
4688 return -EIO;
4689 }
4690
4691 memcpy(priv->net_dev->dev_addr, addr, ETH_ALEN);
4692 IPW_DEBUG_INFO("card MAC is %pM\n", priv->net_dev->dev_addr);
4693
4694 return 0;
4695 }
4696
4697 /********************************************************************
4698 *
4699 * Firmware Commands
4700 *
4701 ********************************************************************/
4702
4703 static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4704 {
4705 struct host_command cmd = {
4706 .host_command = ADAPTER_ADDRESS,
4707 .host_command_sequence = 0,
4708 .host_command_length = ETH_ALEN
4709 };
4710 int err;
4711
4712 IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4713
4714 IPW_DEBUG_INFO("enter\n");
4715
4716 if (priv->config & CFG_CUSTOM_MAC) {
4717 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4718 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
4719 } else
4720 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4721 ETH_ALEN);
4722
4723 err = ipw2100_hw_send_command(priv, &cmd);
4724
4725 IPW_DEBUG_INFO("exit\n");
4726 return err;
4727 }
4728
4729 static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4730 int batch_mode)
4731 {
4732 struct host_command cmd = {
4733 .host_command = PORT_TYPE,
4734 .host_command_sequence = 0,
4735 .host_command_length = sizeof(u32)
4736 };
4737 int err;
4738
4739 switch (port_type) {
4740 case IW_MODE_INFRA:
4741 cmd.host_command_parameters[0] = IPW_BSS;
4742 break;
4743 case IW_MODE_ADHOC:
4744 cmd.host_command_parameters[0] = IPW_IBSS;
4745 break;
4746 }
4747
4748 IPW_DEBUG_HC("PORT_TYPE: %s\n",
4749 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4750
4751 if (!batch_mode) {
4752 err = ipw2100_disable_adapter(priv);
4753 if (err) {
4754 printk(KERN_ERR DRV_NAME
4755 ": %s: Could not disable adapter %d\n",
4756 priv->net_dev->name, err);
4757 return err;
4758 }
4759 }
4760
4761 /* send cmd to firmware */
4762 err = ipw2100_hw_send_command(priv, &cmd);
4763
4764 if (!batch_mode)
4765 ipw2100_enable_adapter(priv);
4766
4767 return err;
4768 }
4769
4770 static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4771 int batch_mode)
4772 {
4773 struct host_command cmd = {
4774 .host_command = CHANNEL,
4775 .host_command_sequence = 0,
4776 .host_command_length = sizeof(u32)
4777 };
4778 int err;
4779
4780 cmd.host_command_parameters[0] = channel;
4781
4782 IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4783
4784 /* If BSS then we don't support channel selection */
4785 if (priv->ieee->iw_mode == IW_MODE_INFRA)
4786 return 0;
4787
4788 if ((channel != 0) &&
4789 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4790 return -EINVAL;
4791
4792 if (!batch_mode) {
4793 err = ipw2100_disable_adapter(priv);
4794 if (err)
4795 return err;
4796 }
4797
4798 err = ipw2100_hw_send_command(priv, &cmd);
4799 if (err) {
4800 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4801 return err;
4802 }
4803
4804 if (channel)
4805 priv->config |= CFG_STATIC_CHANNEL;
4806 else
4807 priv->config &= ~CFG_STATIC_CHANNEL;
4808
4809 priv->channel = channel;
4810
4811 if (!batch_mode) {
4812 err = ipw2100_enable_adapter(priv);
4813 if (err)
4814 return err;
4815 }
4816
4817 return 0;
4818 }
4819
4820 static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4821 {
4822 struct host_command cmd = {
4823 .host_command = SYSTEM_CONFIG,
4824 .host_command_sequence = 0,
4825 .host_command_length = 12,
4826 };
4827 u32 ibss_mask, len = sizeof(u32);
4828 int err;
4829
4830 /* Set system configuration */
4831
4832 if (!batch_mode) {
4833 err = ipw2100_disable_adapter(priv);
4834 if (err)
4835 return err;
4836 }
4837
4838 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4839 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4840
4841 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4842 IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4843
4844 if (!(priv->config & CFG_LONG_PREAMBLE))
4845 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4846
4847 err = ipw2100_get_ordinal(priv,
4848 IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4849 &ibss_mask, &len);
4850 if (err)
4851 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4852
4853 cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4854 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4855
4856 /* 11b only */
4857 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4858
4859 err = ipw2100_hw_send_command(priv, &cmd);
4860 if (err)
4861 return err;
4862
4863 /* If IPv6 is configured in the kernel then we don't want to filter out all
4864 * of the multicast packets as IPv6 needs some. */
4865 #if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4866 cmd.host_command = ADD_MULTICAST;
4867 cmd.host_command_sequence = 0;
4868 cmd.host_command_length = 0;
4869
4870 ipw2100_hw_send_command(priv, &cmd);
4871 #endif
4872 if (!batch_mode) {
4873 err = ipw2100_enable_adapter(priv);
4874 if (err)
4875 return err;
4876 }
4877
4878 return 0;
4879 }
4880
4881 static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4882 int batch_mode)
4883 {
4884 struct host_command cmd = {
4885 .host_command = BASIC_TX_RATES,
4886 .host_command_sequence = 0,
4887 .host_command_length = 4
4888 };
4889 int err;
4890
4891 cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4892
4893 if (!batch_mode) {
4894 err = ipw2100_disable_adapter(priv);
4895 if (err)
4896 return err;
4897 }
4898
4899 /* Set BASIC TX Rate first */
4900 ipw2100_hw_send_command(priv, &cmd);
4901
4902 /* Set TX Rate */
4903 cmd.host_command = TX_RATES;
4904 ipw2100_hw_send_command(priv, &cmd);
4905
4906 /* Set MSDU TX Rate */
4907 cmd.host_command = MSDU_TX_RATES;
4908 ipw2100_hw_send_command(priv, &cmd);
4909
4910 if (!batch_mode) {
4911 err = ipw2100_enable_adapter(priv);
4912 if (err)
4913 return err;
4914 }
4915
4916 priv->tx_rates = rate;
4917
4918 return 0;
4919 }
4920
4921 static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4922 {
4923 struct host_command cmd = {
4924 .host_command = POWER_MODE,
4925 .host_command_sequence = 0,
4926 .host_command_length = 4
4927 };
4928 int err;
4929
4930 cmd.host_command_parameters[0] = power_level;
4931
4932 err = ipw2100_hw_send_command(priv, &cmd);
4933 if (err)
4934 return err;
4935
4936 if (power_level == IPW_POWER_MODE_CAM)
4937 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4938 else
4939 priv->power_mode = IPW_POWER_ENABLED | power_level;
4940
4941 #ifdef IPW2100_TX_POWER
4942 if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4943 /* Set beacon interval */
4944 cmd.host_command = TX_POWER_INDEX;
4945 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4946
4947 err = ipw2100_hw_send_command(priv, &cmd);
4948 if (err)
4949 return err;
4950 }
4951 #endif
4952
4953 return 0;
4954 }
4955
4956 static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4957 {
4958 struct host_command cmd = {
4959 .host_command = RTS_THRESHOLD,
4960 .host_command_sequence = 0,
4961 .host_command_length = 4
4962 };
4963 int err;
4964
4965 if (threshold & RTS_DISABLED)
4966 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4967 else
4968 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4969
4970 err = ipw2100_hw_send_command(priv, &cmd);
4971 if (err)
4972 return err;
4973
4974 priv->rts_threshold = threshold;
4975
4976 return 0;
4977 }
4978
4979 #if 0
4980 int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4981 u32 threshold, int batch_mode)
4982 {
4983 struct host_command cmd = {
4984 .host_command = FRAG_THRESHOLD,
4985 .host_command_sequence = 0,
4986 .host_command_length = 4,
4987 .host_command_parameters[0] = 0,
4988 };
4989 int err;
4990
4991 if (!batch_mode) {
4992 err = ipw2100_disable_adapter(priv);
4993 if (err)
4994 return err;
4995 }
4996
4997 if (threshold == 0)
4998 threshold = DEFAULT_FRAG_THRESHOLD;
4999 else {
5000 threshold = max(threshold, MIN_FRAG_THRESHOLD);
5001 threshold = min(threshold, MAX_FRAG_THRESHOLD);
5002 }
5003
5004 cmd.host_command_parameters[0] = threshold;
5005
5006 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
5007
5008 err = ipw2100_hw_send_command(priv, &cmd);
5009
5010 if (!batch_mode)
5011 ipw2100_enable_adapter(priv);
5012
5013 if (!err)
5014 priv->frag_threshold = threshold;
5015
5016 return err;
5017 }
5018 #endif
5019
5020 static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
5021 {
5022 struct host_command cmd = {
5023 .host_command = SHORT_RETRY_LIMIT,
5024 .host_command_sequence = 0,
5025 .host_command_length = 4
5026 };
5027 int err;
5028
5029 cmd.host_command_parameters[0] = retry;
5030
5031 err = ipw2100_hw_send_command(priv, &cmd);
5032 if (err)
5033 return err;
5034
5035 priv->short_retry_limit = retry;
5036
5037 return 0;
5038 }
5039
5040 static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
5041 {
5042 struct host_command cmd = {
5043 .host_command = LONG_RETRY_LIMIT,
5044 .host_command_sequence = 0,
5045 .host_command_length = 4
5046 };
5047 int err;
5048
5049 cmd.host_command_parameters[0] = retry;
5050
5051 err = ipw2100_hw_send_command(priv, &cmd);
5052 if (err)
5053 return err;
5054
5055 priv->long_retry_limit = retry;
5056
5057 return 0;
5058 }
5059
5060 static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
5061 int batch_mode)
5062 {
5063 struct host_command cmd = {
5064 .host_command = MANDATORY_BSSID,
5065 .host_command_sequence = 0,
5066 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
5067 };
5068 int err;
5069
5070 #ifdef CONFIG_IPW2100_DEBUG
5071 if (bssid != NULL)
5072 IPW_DEBUG_HC("MANDATORY_BSSID: %pM\n", bssid);
5073 else
5074 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
5075 #endif
5076 /* if BSSID is empty then we disable mandatory bssid mode */
5077 if (bssid != NULL)
5078 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
5079
5080 if (!batch_mode) {
5081 err = ipw2100_disable_adapter(priv);
5082 if (err)
5083 return err;
5084 }
5085
5086 err = ipw2100_hw_send_command(priv, &cmd);
5087
5088 if (!batch_mode)
5089 ipw2100_enable_adapter(priv);
5090
5091 return err;
5092 }
5093
5094 static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
5095 {
5096 struct host_command cmd = {
5097 .host_command = DISASSOCIATION_BSSID,
5098 .host_command_sequence = 0,
5099 .host_command_length = ETH_ALEN
5100 };
5101 int err;
5102
5103 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
5104
5105 /* The Firmware currently ignores the BSSID and just disassociates from
5106 * the currently associated AP -- but in the off chance that a future
5107 * firmware does use the BSSID provided here, we go ahead and try and
5108 * set it to the currently associated AP's BSSID */
5109 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
5110
5111 err = ipw2100_hw_send_command(priv, &cmd);
5112
5113 return err;
5114 }
5115
5116 static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
5117 struct ipw2100_wpa_assoc_frame *, int)
5118 __attribute__ ((unused));
5119
5120 static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
5121 struct ipw2100_wpa_assoc_frame *wpa_frame,
5122 int batch_mode)
5123 {
5124 struct host_command cmd = {
5125 .host_command = SET_WPA_IE,
5126 .host_command_sequence = 0,
5127 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
5128 };
5129 int err;
5130
5131 IPW_DEBUG_HC("SET_WPA_IE\n");
5132
5133 if (!batch_mode) {
5134 err = ipw2100_disable_adapter(priv);
5135 if (err)
5136 return err;
5137 }
5138
5139 memcpy(cmd.host_command_parameters, wpa_frame,
5140 sizeof(struct ipw2100_wpa_assoc_frame));
5141
5142 err = ipw2100_hw_send_command(priv, &cmd);
5143
5144 if (!batch_mode) {
5145 if (ipw2100_enable_adapter(priv))
5146 err = -EIO;
5147 }
5148
5149 return err;
5150 }
5151
5152 struct security_info_params {
5153 u32 allowed_ciphers;
5154 u16 version;
5155 u8 auth_mode;
5156 u8 replay_counters_number;
5157 u8 unicast_using_group;
5158 } __packed;
5159
5160 static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5161 int auth_mode,
5162 int security_level,
5163 int unicast_using_group,
5164 int batch_mode)
5165 {
5166 struct host_command cmd = {
5167 .host_command = SET_SECURITY_INFORMATION,
5168 .host_command_sequence = 0,
5169 .host_command_length = sizeof(struct security_info_params)
5170 };
5171 struct security_info_params *security =
5172 (struct security_info_params *)&cmd.host_command_parameters;
5173 int err;
5174 memset(security, 0, sizeof(*security));
5175
5176 /* If shared key AP authentication is turned on, then we need to
5177 * configure the firmware to try and use it.
5178 *
5179 * Actual data encryption/decryption is handled by the host. */
5180 security->auth_mode = auth_mode;
5181 security->unicast_using_group = unicast_using_group;
5182
5183 switch (security_level) {
5184 default:
5185 case SEC_LEVEL_0:
5186 security->allowed_ciphers = IPW_NONE_CIPHER;
5187 break;
5188 case SEC_LEVEL_1:
5189 security->allowed_ciphers = IPW_WEP40_CIPHER |
5190 IPW_WEP104_CIPHER;
5191 break;
5192 case SEC_LEVEL_2:
5193 security->allowed_ciphers = IPW_WEP40_CIPHER |
5194 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5195 break;
5196 case SEC_LEVEL_2_CKIP:
5197 security->allowed_ciphers = IPW_WEP40_CIPHER |
5198 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5199 break;
5200 case SEC_LEVEL_3:
5201 security->allowed_ciphers = IPW_WEP40_CIPHER |
5202 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5203 break;
5204 }
5205
5206 IPW_DEBUG_HC
5207 ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5208 security->auth_mode, security->allowed_ciphers, security_level);
5209
5210 security->replay_counters_number = 0;
5211
5212 if (!batch_mode) {
5213 err = ipw2100_disable_adapter(priv);
5214 if (err)
5215 return err;
5216 }
5217
5218 err = ipw2100_hw_send_command(priv, &cmd);
5219
5220 if (!batch_mode)
5221 ipw2100_enable_adapter(priv);
5222
5223 return err;
5224 }
5225
5226 static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5227 {
5228 struct host_command cmd = {
5229 .host_command = TX_POWER_INDEX,
5230 .host_command_sequence = 0,
5231 .host_command_length = 4
5232 };
5233 int err = 0;
5234 u32 tmp = tx_power;
5235
5236 if (tx_power != IPW_TX_POWER_DEFAULT)
5237 tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 /
5238 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
5239
5240 cmd.host_command_parameters[0] = tmp;
5241
5242 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5243 err = ipw2100_hw_send_command(priv, &cmd);
5244 if (!err)
5245 priv->tx_power = tx_power;
5246
5247 return 0;
5248 }
5249
5250 static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5251 u32 interval, int batch_mode)
5252 {
5253 struct host_command cmd = {
5254 .host_command = BEACON_INTERVAL,
5255 .host_command_sequence = 0,
5256 .host_command_length = 4
5257 };
5258 int err;
5259
5260 cmd.host_command_parameters[0] = interval;
5261
5262 IPW_DEBUG_INFO("enter\n");
5263
5264 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5265 if (!batch_mode) {
5266 err = ipw2100_disable_adapter(priv);
5267 if (err)
5268 return err;
5269 }
5270
5271 ipw2100_hw_send_command(priv, &cmd);
5272
5273 if (!batch_mode) {
5274 err = ipw2100_enable_adapter(priv);
5275 if (err)
5276 return err;
5277 }
5278 }
5279
5280 IPW_DEBUG_INFO("exit\n");
5281
5282 return 0;
5283 }
5284
5285 static void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5286 {
5287 ipw2100_tx_initialize(priv);
5288 ipw2100_rx_initialize(priv);
5289 ipw2100_msg_initialize(priv);
5290 }
5291
5292 static void ipw2100_queues_free(struct ipw2100_priv *priv)
5293 {
5294 ipw2100_tx_free(priv);
5295 ipw2100_rx_free(priv);
5296 ipw2100_msg_free(priv);
5297 }
5298
5299 static int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5300 {
5301 if (ipw2100_tx_allocate(priv) ||
5302 ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5303 goto fail;
5304
5305 return 0;
5306
5307 fail:
5308 ipw2100_tx_free(priv);
5309 ipw2100_rx_free(priv);
5310 ipw2100_msg_free(priv);
5311 return -ENOMEM;
5312 }
5313
5314 #define IPW_PRIVACY_CAPABLE 0x0008
5315
5316 static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5317 int batch_mode)
5318 {
5319 struct host_command cmd = {
5320 .host_command = WEP_FLAGS,
5321 .host_command_sequence = 0,
5322 .host_command_length = 4
5323 };
5324 int err;
5325
5326 cmd.host_command_parameters[0] = flags;
5327
5328 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5329
5330 if (!batch_mode) {
5331 err = ipw2100_disable_adapter(priv);
5332 if (err) {
5333 printk(KERN_ERR DRV_NAME
5334 ": %s: Could not disable adapter %d\n",
5335 priv->net_dev->name, err);
5336 return err;
5337 }
5338 }
5339
5340 /* send cmd to firmware */
5341 err = ipw2100_hw_send_command(priv, &cmd);
5342
5343 if (!batch_mode)
5344 ipw2100_enable_adapter(priv);
5345
5346 return err;
5347 }
5348
5349 struct ipw2100_wep_key {
5350 u8 idx;
5351 u8 len;
5352 u8 key[13];
5353 };
5354
5355 /* Macros to ease up priting WEP keys */
5356 #define WEP_FMT_64 "%02X%02X%02X%02X-%02X"
5357 #define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5358 #define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5359 #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]
5360
5361 /**
5362 * Set a the wep key
5363 *
5364 * @priv: struct to work on
5365 * @idx: index of the key we want to set
5366 * @key: ptr to the key data to set
5367 * @len: length of the buffer at @key
5368 * @batch_mode: FIXME perform the operation in batch mode, not
5369 * disabling the device.
5370 *
5371 * @returns 0 if OK, < 0 errno code on error.
5372 *
5373 * Fill out a command structure with the new wep key, length an
5374 * index and send it down the wire.
5375 */
5376 static int ipw2100_set_key(struct ipw2100_priv *priv,
5377 int idx, char *key, int len, int batch_mode)
5378 {
5379 int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5380 struct host_command cmd = {
5381 .host_command = WEP_KEY_INFO,
5382 .host_command_sequence = 0,
5383 .host_command_length = sizeof(struct ipw2100_wep_key),
5384 };
5385 struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5386 int err;
5387
5388 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5389 idx, keylen, len);
5390
5391 /* NOTE: We don't check cached values in case the firmware was reset
5392 * or some other problem is occurring. If the user is setting the key,
5393 * then we push the change */
5394
5395 wep_key->idx = idx;
5396 wep_key->len = keylen;
5397
5398 if (keylen) {
5399 memcpy(wep_key->key, key, len);
5400 memset(wep_key->key + len, 0, keylen - len);
5401 }
5402
5403 /* Will be optimized out on debug not being configured in */
5404 if (keylen == 0)
5405 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5406 priv->net_dev->name, wep_key->idx);
5407 else if (keylen == 5)
5408 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5409 priv->net_dev->name, wep_key->idx, wep_key->len,
5410 WEP_STR_64(wep_key->key));
5411 else
5412 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5413 "\n",
5414 priv->net_dev->name, wep_key->idx, wep_key->len,
5415 WEP_STR_128(wep_key->key));
5416
5417 if (!batch_mode) {
5418 err = ipw2100_disable_adapter(priv);
5419 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5420 if (err) {
5421 printk(KERN_ERR DRV_NAME
5422 ": %s: Could not disable adapter %d\n",
5423 priv->net_dev->name, err);
5424 return err;
5425 }
5426 }
5427
5428 /* send cmd to firmware */
5429 err = ipw2100_hw_send_command(priv, &cmd);
5430
5431 if (!batch_mode) {
5432 int err2 = ipw2100_enable_adapter(priv);
5433 if (err == 0)
5434 err = err2;
5435 }
5436 return err;
5437 }
5438
5439 static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5440 int idx, int batch_mode)
5441 {
5442 struct host_command cmd = {
5443 .host_command = WEP_KEY_INDEX,
5444 .host_command_sequence = 0,
5445 .host_command_length = 4,
5446 .host_command_parameters = {idx},
5447 };
5448 int err;
5449
5450 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5451
5452 if (idx < 0 || idx > 3)
5453 return -EINVAL;
5454
5455 if (!batch_mode) {
5456 err = ipw2100_disable_adapter(priv);
5457 if (err) {
5458 printk(KERN_ERR DRV_NAME
5459 ": %s: Could not disable adapter %d\n",
5460 priv->net_dev->name, err);
5461 return err;
5462 }
5463 }
5464
5465 /* send cmd to firmware */
5466 err = ipw2100_hw_send_command(priv, &cmd);
5467
5468 if (!batch_mode)
5469 ipw2100_enable_adapter(priv);
5470
5471 return err;
5472 }
5473
5474 static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5475 {
5476 int i, err, auth_mode, sec_level, use_group;
5477
5478 if (!(priv->status & STATUS_RUNNING))
5479 return 0;
5480
5481 if (!batch_mode) {
5482 err = ipw2100_disable_adapter(priv);
5483 if (err)
5484 return err;
5485 }
5486
5487 if (!priv->ieee->sec.enabled) {
5488 err =
5489 ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5490 SEC_LEVEL_0, 0, 1);
5491 } else {
5492 auth_mode = IPW_AUTH_OPEN;
5493 if (priv->ieee->sec.flags & SEC_AUTH_MODE) {
5494 if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)
5495 auth_mode = IPW_AUTH_SHARED;
5496 else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)
5497 auth_mode = IPW_AUTH_LEAP_CISCO_ID;
5498 }
5499
5500 sec_level = SEC_LEVEL_0;
5501 if (priv->ieee->sec.flags & SEC_LEVEL)
5502 sec_level = priv->ieee->sec.level;
5503
5504 use_group = 0;
5505 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5506 use_group = priv->ieee->sec.unicast_uses_group;
5507
5508 err =
5509 ipw2100_set_security_information(priv, auth_mode, sec_level,
5510 use_group, 1);
5511 }
5512
5513 if (err)
5514 goto exit;
5515
5516 if (priv->ieee->sec.enabled) {
5517 for (i = 0; i < 4; i++) {
5518 if (!(priv->ieee->sec.flags & (1 << i))) {
5519 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5520 priv->ieee->sec.key_sizes[i] = 0;
5521 } else {
5522 err = ipw2100_set_key(priv, i,
5523 priv->ieee->sec.keys[i],
5524 priv->ieee->sec.
5525 key_sizes[i], 1);
5526 if (err)
5527 goto exit;
5528 }
5529 }
5530
5531 ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1);
5532 }
5533
5534 /* Always enable privacy so the Host can filter WEP packets if
5535 * encrypted data is sent up */
5536 err =
5537 ipw2100_set_wep_flags(priv,
5538 priv->ieee->sec.
5539 enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5540 if (err)
5541 goto exit;
5542
5543 priv->status &= ~STATUS_SECURITY_UPDATED;
5544
5545 exit:
5546 if (!batch_mode)
5547 ipw2100_enable_adapter(priv);
5548
5549 return err;
5550 }
5551
5552 static void ipw2100_security_work(struct work_struct *work)
5553 {
5554 struct ipw2100_priv *priv =
5555 container_of(work, struct ipw2100_priv, security_work.work);
5556
5557 /* If we happen to have reconnected before we get a chance to
5558 * process this, then update the security settings--which causes
5559 * a disassociation to occur */
5560 if (!(priv->status & STATUS_ASSOCIATED) &&
5561 priv->status & STATUS_SECURITY_UPDATED)
5562 ipw2100_configure_security(priv, 0);
5563 }
5564
5565 static void shim__set_security(struct net_device *dev,
5566 struct libipw_security *sec)
5567 {
5568 struct ipw2100_priv *priv = libipw_priv(dev);
5569 int i;
5570
5571 mutex_lock(&priv->action_mutex);
5572 if (!(priv->status & STATUS_INITIALIZED))
5573 goto done;
5574
5575 for (i = 0; i < 4; i++) {
5576 if (sec->flags & (1 << i)) {
5577 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5578 if (sec->key_sizes[i] == 0)
5579 priv->ieee->sec.flags &= ~(1 << i);
5580 else
5581 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5582 sec->key_sizes[i]);
5583 if (sec->level == SEC_LEVEL_1) {
5584 priv->ieee->sec.flags |= (1 << i);
5585 priv->status |= STATUS_SECURITY_UPDATED;
5586 } else
5587 priv->ieee->sec.flags &= ~(1 << i);
5588 }
5589 }
5590
5591 if ((sec->flags & SEC_ACTIVE_KEY) &&
5592 priv->ieee->sec.active_key != sec->active_key) {
5593 priv->ieee->sec.active_key = sec->active_key;
5594 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5595 priv->status |= STATUS_SECURITY_UPDATED;
5596 }
5597
5598 if ((sec->flags & SEC_AUTH_MODE) &&
5599 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5600 priv->ieee->sec.auth_mode = sec->auth_mode;
5601 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5602 priv->status |= STATUS_SECURITY_UPDATED;
5603 }
5604
5605 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5606 priv->ieee->sec.flags |= SEC_ENABLED;
5607 priv->ieee->sec.enabled = sec->enabled;
5608 priv->status |= STATUS_SECURITY_UPDATED;
5609 }
5610
5611 if (sec->flags & SEC_ENCRYPT)
5612 priv->ieee->sec.encrypt = sec->encrypt;
5613
5614 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5615 priv->ieee->sec.level = sec->level;
5616 priv->ieee->sec.flags |= SEC_LEVEL;
5617 priv->status |= STATUS_SECURITY_UPDATED;
5618 }
5619
5620 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5621 priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5622 priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5623 priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5624 priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5625 priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5626 priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5627 priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5628 priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5629 priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5630
5631 /* As a temporary work around to enable WPA until we figure out why
5632 * wpa_supplicant toggles the security capability of the driver, which
5633 * forces a disassociation with force_update...
5634 *
5635 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5636 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5637 ipw2100_configure_security(priv, 0);
5638 done:
5639 mutex_unlock(&priv->action_mutex);
5640 }
5641
5642 static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5643 {
5644 int err;
5645 int batch_mode = 1;
5646 u8 *bssid;
5647
5648 IPW_DEBUG_INFO("enter\n");
5649
5650 err = ipw2100_disable_adapter(priv);
5651 if (err)
5652 return err;
5653 #ifdef CONFIG_IPW2100_MONITOR
5654 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5655 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5656 if (err)
5657 return err;
5658
5659 IPW_DEBUG_INFO("exit\n");
5660
5661 return 0;
5662 }
5663 #endif /* CONFIG_IPW2100_MONITOR */
5664
5665 err = ipw2100_read_mac_address(priv);
5666 if (err)
5667 return -EIO;
5668
5669 err = ipw2100_set_mac_address(priv, batch_mode);
5670 if (err)
5671 return err;
5672
5673 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5674 if (err)
5675 return err;
5676
5677 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5678 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5679 if (err)
5680 return err;
5681 }
5682
5683 err = ipw2100_system_config(priv, batch_mode);
5684 if (err)
5685 return err;
5686
5687 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5688 if (err)
5689 return err;
5690
5691 /* Default to power mode OFF */
5692 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5693 if (err)
5694 return err;
5695
5696 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5697 if (err)
5698 return err;
5699
5700 if (priv->config & CFG_STATIC_BSSID)
5701 bssid = priv->bssid;
5702 else
5703 bssid = NULL;
5704 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5705 if (err)
5706 return err;
5707
5708 if (priv->config & CFG_STATIC_ESSID)
5709 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5710 batch_mode);
5711 else
5712 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5713 if (err)
5714 return err;
5715
5716 err = ipw2100_configure_security(priv, batch_mode);
5717 if (err)
5718 return err;
5719
5720 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5721 err =
5722 ipw2100_set_ibss_beacon_interval(priv,
5723 priv->beacon_interval,
5724 batch_mode);
5725 if (err)
5726 return err;
5727
5728 err = ipw2100_set_tx_power(priv, priv->tx_power);
5729 if (err)
5730 return err;
5731 }
5732
5733 /*
5734 err = ipw2100_set_fragmentation_threshold(
5735 priv, priv->frag_threshold, batch_mode);
5736 if (err)
5737 return err;
5738 */
5739
5740 IPW_DEBUG_INFO("exit\n");
5741
5742 return 0;
5743 }
5744
5745 /*************************************************************************
5746 *
5747 * EXTERNALLY CALLED METHODS
5748 *
5749 *************************************************************************/
5750
5751 /* This method is called by the network layer -- not to be confused with
5752 * ipw2100_set_mac_address() declared above called by this driver (and this
5753 * method as well) to talk to the firmware */
5754 static int ipw2100_set_address(struct net_device *dev, void *p)
5755 {
5756 struct ipw2100_priv *priv = libipw_priv(dev);
5757 struct sockaddr *addr = p;
5758 int err = 0;
5759
5760 if (!is_valid_ether_addr(addr->sa_data))
5761 return -EADDRNOTAVAIL;
5762
5763 mutex_lock(&priv->action_mutex);
5764
5765 priv->config |= CFG_CUSTOM_MAC;
5766 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5767
5768 err = ipw2100_set_mac_address(priv, 0);
5769 if (err)
5770 goto done;
5771
5772 priv->reset_backoff = 0;
5773 mutex_unlock(&priv->action_mutex);
5774 ipw2100_reset_adapter(&priv->reset_work.work);
5775 return 0;
5776
5777 done:
5778 mutex_unlock(&priv->action_mutex);
5779 return err;
5780 }
5781
5782 static int ipw2100_open(struct net_device *dev)
5783 {
5784 struct ipw2100_priv *priv = libipw_priv(dev);
5785 unsigned long flags;
5786 IPW_DEBUG_INFO("dev->open\n");
5787
5788 spin_lock_irqsave(&priv->low_lock, flags);
5789 if (priv->status & STATUS_ASSOCIATED) {
5790 netif_carrier_on(dev);
5791 netif_start_queue(dev);
5792 }
5793 spin_unlock_irqrestore(&priv->low_lock, flags);
5794
5795 return 0;
5796 }
5797
5798 static int ipw2100_close(struct net_device *dev)
5799 {
5800 struct ipw2100_priv *priv = libipw_priv(dev);
5801 unsigned long flags;
5802 struct list_head *element;
5803 struct ipw2100_tx_packet *packet;
5804
5805 IPW_DEBUG_INFO("enter\n");
5806
5807 spin_lock_irqsave(&priv->low_lock, flags);
5808
5809 if (priv->status & STATUS_ASSOCIATED)
5810 netif_carrier_off(dev);
5811 netif_stop_queue(dev);
5812
5813 /* Flush the TX queue ... */
5814 while (!list_empty(&priv->tx_pend_list)) {
5815 element = priv->tx_pend_list.next;
5816 packet = list_entry(element, struct ipw2100_tx_packet, list);
5817
5818 list_del(element);
5819 DEC_STAT(&priv->tx_pend_stat);
5820
5821 libipw_txb_free(packet->info.d_struct.txb);
5822 packet->info.d_struct.txb = NULL;
5823
5824 list_add_tail(element, &priv->tx_free_list);
5825 INC_STAT(&priv->tx_free_stat);
5826 }
5827 spin_unlock_irqrestore(&priv->low_lock, flags);
5828
5829 IPW_DEBUG_INFO("exit\n");
5830
5831 return 0;
5832 }
5833
5834 /*
5835 * TODO: Fix this function... its just wrong
5836 */
5837 static void ipw2100_tx_timeout(struct net_device *dev, unsigned int txqueue)
5838 {
5839 struct ipw2100_priv *priv = libipw_priv(dev);
5840
5841 dev->stats.tx_errors++;
5842
5843 #ifdef CONFIG_IPW2100_MONITOR
5844 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5845 return;
5846 #endif
5847
5848 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n",
5849 dev->name);
5850 schedule_reset(priv);
5851 }
5852
5853 static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5854 {
5855 /* This is called when wpa_supplicant loads and closes the driver
5856 * interface. */
5857 priv->ieee->wpa_enabled = value;
5858 return 0;
5859 }
5860
5861 static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5862 {
5863
5864 struct libipw_device *ieee = priv->ieee;
5865 struct libipw_security sec = {
5866 .flags = SEC_AUTH_MODE,
5867 };
5868 int ret = 0;
5869
5870 if (value & IW_AUTH_ALG_SHARED_KEY) {
5871 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5872 ieee->open_wep = 0;
5873 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5874 sec.auth_mode = WLAN_AUTH_OPEN;
5875 ieee->open_wep = 1;
5876 } else if (value & IW_AUTH_ALG_LEAP) {
5877 sec.auth_mode = WLAN_AUTH_LEAP;
5878 ieee->open_wep = 1;
5879 } else
5880 return -EINVAL;
5881
5882 if (ieee->set_security)
5883 ieee->set_security(ieee->dev, &sec);
5884 else
5885 ret = -EOPNOTSUPP;
5886
5887 return ret;
5888 }
5889
5890 static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5891 char *wpa_ie, int wpa_ie_len)
5892 {
5893
5894 struct ipw2100_wpa_assoc_frame frame;
5895
5896 frame.fixed_ie_mask = 0;
5897
5898 /* copy WPA IE */
5899 memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5900 frame.var_ie_len = wpa_ie_len;
5901
5902 /* make sure WPA is enabled */
5903 ipw2100_wpa_enable(priv, 1);
5904 ipw2100_set_wpa_ie(priv, &frame, 0);
5905 }
5906
5907 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
5908 struct ethtool_drvinfo *info)
5909 {
5910 struct ipw2100_priv *priv = libipw_priv(dev);
5911 char fw_ver[64], ucode_ver[64];
5912
5913 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
5914 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
5915
5916 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
5917 ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
5918
5919 snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
5920 fw_ver, priv->eeprom_version, ucode_ver);
5921
5922 strlcpy(info->bus_info, pci_name(priv->pci_dev),
5923 sizeof(info->bus_info));
5924 }
5925
5926 static u32 ipw2100_ethtool_get_link(struct net_device *dev)
5927 {
5928 struct ipw2100_priv *priv = libipw_priv(dev);
5929 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
5930 }
5931
5932 static const struct ethtool_ops ipw2100_ethtool_ops = {
5933 .get_link = ipw2100_ethtool_get_link,
5934 .get_drvinfo = ipw_ethtool_get_drvinfo,
5935 };
5936
5937 static void ipw2100_hang_check(struct work_struct *work)
5938 {
5939 struct ipw2100_priv *priv =
5940 container_of(work, struct ipw2100_priv, hang_check.work);
5941 unsigned long flags;
5942 u32 rtc = 0xa5a5a5a5;
5943 u32 len = sizeof(rtc);
5944 int restart = 0;
5945
5946 spin_lock_irqsave(&priv->low_lock, flags);
5947
5948 if (priv->fatal_error != 0) {
5949 /* If fatal_error is set then we need to restart */
5950 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
5951 priv->net_dev->name);
5952
5953 restart = 1;
5954 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
5955 (rtc == priv->last_rtc)) {
5956 /* Check if firmware is hung */
5957 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
5958 priv->net_dev->name);
5959
5960 restart = 1;
5961 }
5962
5963 if (restart) {
5964 /* Kill timer */
5965 priv->stop_hang_check = 1;
5966 priv->hangs++;
5967
5968 /* Restart the NIC */
5969 schedule_reset(priv);
5970 }
5971
5972 priv->last_rtc = rtc;
5973
5974 if (!priv->stop_hang_check)
5975 schedule_delayed_work(&priv->hang_check, HZ / 2);
5976
5977 spin_unlock_irqrestore(&priv->low_lock, flags);
5978 }
5979
5980 static void ipw2100_rf_kill(struct work_struct *work)
5981 {
5982 struct ipw2100_priv *priv =
5983 container_of(work, struct ipw2100_priv, rf_kill.work);
5984 unsigned long flags;
5985
5986 spin_lock_irqsave(&priv->low_lock, flags);
5987
5988 if (rf_kill_active(priv)) {
5989 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
5990 if (!priv->stop_rf_kill)
5991 schedule_delayed_work(&priv->rf_kill,
5992 round_jiffies_relative(HZ));
5993 goto exit_unlock;
5994 }
5995
5996 /* RF Kill is now disabled, so bring the device back up */
5997
5998 if (!(priv->status & STATUS_RF_KILL_MASK)) {
5999 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
6000 "device\n");
6001 schedule_reset(priv);
6002 } else
6003 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
6004 "enabled\n");
6005
6006 exit_unlock:
6007 spin_unlock_irqrestore(&priv->low_lock, flags);
6008 }
6009
6010 static void ipw2100_irq_tasklet(unsigned long data);
6011
6012 static const struct net_device_ops ipw2100_netdev_ops = {
6013 .ndo_open = ipw2100_open,
6014 .ndo_stop = ipw2100_close,
6015 .ndo_start_xmit = libipw_xmit,
6016 .ndo_tx_timeout = ipw2100_tx_timeout,
6017 .ndo_set_mac_address = ipw2100_set_address,
6018 .ndo_validate_addr = eth_validate_addr,
6019 };
6020
6021 /* Look into using netdev destructor to shutdown libipw? */
6022
6023 static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6024 void __iomem * ioaddr)
6025 {
6026 struct ipw2100_priv *priv;
6027 struct net_device *dev;
6028
6029 dev = alloc_libipw(sizeof(struct ipw2100_priv), 0);
6030 if (!dev)
6031 return NULL;
6032 priv = libipw_priv(dev);
6033 priv->ieee = netdev_priv(dev);
6034 priv->pci_dev = pci_dev;
6035 priv->net_dev = dev;
6036 priv->ioaddr = ioaddr;
6037
6038 priv->ieee->hard_start_xmit = ipw2100_tx;
6039 priv->ieee->set_security = shim__set_security;
6040
6041 priv->ieee->perfect_rssi = -20;
6042 priv->ieee->worst_rssi = -85;
6043
6044 dev->netdev_ops = &ipw2100_netdev_ops;
6045 dev->ethtool_ops = &ipw2100_ethtool_ops;
6046 dev->wireless_handlers = &ipw2100_wx_handler_def;
6047 priv->wireless_data.libipw = priv->ieee;
6048 dev->wireless_data = &priv->wireless_data;
6049 dev->watchdog_timeo = 3 * HZ;
6050 dev->irq = 0;
6051 dev->min_mtu = 68;
6052 dev->max_mtu = LIBIPW_DATA_LEN;
6053
6054 /* NOTE: We don't use the wireless_handlers hook
6055 * in dev as the system will start throwing WX requests
6056 * to us before we're actually initialized and it just
6057 * ends up causing problems. So, we just handle
6058 * the WX extensions through the ipw2100_ioctl interface */
6059
6060 /* memset() puts everything to 0, so we only have explicitly set
6061 * those values that need to be something else */
6062
6063 /* If power management is turned on, default to AUTO mode */
6064 priv->power_mode = IPW_POWER_AUTO;
6065
6066 #ifdef CONFIG_IPW2100_MONITOR
6067 priv->config |= CFG_CRC_CHECK;
6068 #endif
6069 priv->ieee->wpa_enabled = 0;
6070 priv->ieee->drop_unencrypted = 0;
6071 priv->ieee->privacy_invoked = 0;
6072 priv->ieee->ieee802_1x = 1;
6073
6074 /* Set module parameters */
6075 switch (network_mode) {
6076 case 1:
6077 priv->ieee->iw_mode = IW_MODE_ADHOC;
6078 break;
6079 #ifdef CONFIG_IPW2100_MONITOR
6080 case 2:
6081 priv->ieee->iw_mode = IW_MODE_MONITOR;
6082 break;
6083 #endif
6084 default:
6085 case 0:
6086 priv->ieee->iw_mode = IW_MODE_INFRA;
6087 break;
6088 }
6089
6090 if (disable == 1)
6091 priv->status |= STATUS_RF_KILL_SW;
6092
6093 if (channel != 0 &&
6094 ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6095 priv->config |= CFG_STATIC_CHANNEL;
6096 priv->channel = channel;
6097 }
6098
6099 if (associate)
6100 priv->config |= CFG_ASSOCIATE;
6101
6102 priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6103 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6104 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6105 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6106 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6107 priv->tx_power = IPW_TX_POWER_DEFAULT;
6108 priv->tx_rates = DEFAULT_TX_RATES;
6109
6110 strcpy(priv->nick, "ipw2100");
6111
6112 spin_lock_init(&priv->low_lock);
6113 mutex_init(&priv->action_mutex);
6114 mutex_init(&priv->adapter_mutex);
6115
6116 init_waitqueue_head(&priv->wait_command_queue);
6117
6118 netif_carrier_off(dev);
6119
6120 INIT_LIST_HEAD(&priv->msg_free_list);
6121 INIT_LIST_HEAD(&priv->msg_pend_list);
6122 INIT_STAT(&priv->msg_free_stat);
6123 INIT_STAT(&priv->msg_pend_stat);
6124
6125 INIT_LIST_HEAD(&priv->tx_free_list);
6126 INIT_LIST_HEAD(&priv->tx_pend_list);
6127 INIT_STAT(&priv->tx_free_stat);
6128 INIT_STAT(&priv->tx_pend_stat);
6129
6130 INIT_LIST_HEAD(&priv->fw_pend_list);
6131 INIT_STAT(&priv->fw_pend_stat);
6132
6133 INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter);
6134 INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work);
6135 INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
6136 INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
6137 INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
6138 INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event);
6139
6140 tasklet_init(&priv->irq_tasklet,
6141 ipw2100_irq_tasklet, (unsigned long)priv);
6142
6143 /* NOTE: We do not start the deferred work for status checks yet */
6144 priv->stop_rf_kill = 1;
6145 priv->stop_hang_check = 1;
6146
6147 return dev;
6148 }
6149
6150 static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6151 const struct pci_device_id *ent)
6152 {
6153 void __iomem *ioaddr;
6154 struct net_device *dev = NULL;
6155 struct ipw2100_priv *priv = NULL;
6156 int err = 0;
6157 int registered = 0;
6158 u32 val;
6159
6160 IPW_DEBUG_INFO("enter\n");
6161
6162 if (!(pci_resource_flags(pci_dev, 0) & IORESOURCE_MEM)) {
6163 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6164 err = -ENODEV;
6165 goto out;
6166 }
6167
6168 ioaddr = pci_iomap(pci_dev, 0, 0);
6169 if (!ioaddr) {
6170 printk(KERN_WARNING DRV_NAME
6171 "Error calling ioremap.\n");
6172 err = -EIO;
6173 goto fail;
6174 }
6175
6176 /* allocate and initialize our net_device */
6177 dev = ipw2100_alloc_device(pci_dev, ioaddr);
6178 if (!dev) {
6179 printk(KERN_WARNING DRV_NAME
6180 "Error calling ipw2100_alloc_device.\n");
6181 err = -ENOMEM;
6182 goto fail;
6183 }
6184
6185 /* set up PCI mappings for device */
6186 err = pci_enable_device(pci_dev);
6187 if (err) {
6188 printk(KERN_WARNING DRV_NAME
6189 "Error calling pci_enable_device.\n");
6190 return err;
6191 }
6192
6193 priv = libipw_priv(dev);
6194
6195 pci_set_master(pci_dev);
6196 pci_set_drvdata(pci_dev, priv);
6197
6198 err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
6199 if (err) {
6200 printk(KERN_WARNING DRV_NAME
6201 "Error calling pci_set_dma_mask.\n");
6202 pci_disable_device(pci_dev);
6203 return err;
6204 }
6205
6206 err = pci_request_regions(pci_dev, DRV_NAME);
6207 if (err) {
6208 printk(KERN_WARNING DRV_NAME
6209 "Error calling pci_request_regions.\n");
6210 pci_disable_device(pci_dev);
6211 return err;
6212 }
6213
6214 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6215 * PCI Tx retries from interfering with C3 CPU state */
6216 pci_read_config_dword(pci_dev, 0x40, &val);
6217 if ((val & 0x0000ff00) != 0)
6218 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6219
6220 if (!ipw2100_hw_is_adapter_in_system(dev)) {
6221 printk(KERN_WARNING DRV_NAME
6222 "Device not found via register read.\n");
6223 err = -ENODEV;
6224 goto fail;
6225 }
6226
6227 SET_NETDEV_DEV(dev, &pci_dev->dev);
6228
6229 /* Force interrupts to be shut off on the device */
6230 priv->status |= STATUS_INT_ENABLED;
6231 ipw2100_disable_interrupts(priv);
6232
6233 /* Allocate and initialize the Tx/Rx queues and lists */
6234 if (ipw2100_queues_allocate(priv)) {
6235 printk(KERN_WARNING DRV_NAME
6236 "Error calling ipw2100_queues_allocate.\n");
6237 err = -ENOMEM;
6238 goto fail;
6239 }
6240 ipw2100_queues_initialize(priv);
6241
6242 err = request_irq(pci_dev->irq,
6243 ipw2100_interrupt, IRQF_SHARED, dev->name, priv);
6244 if (err) {
6245 printk(KERN_WARNING DRV_NAME
6246 "Error calling request_irq: %d.\n", pci_dev->irq);
6247 goto fail;
6248 }
6249 dev->irq = pci_dev->irq;
6250
6251 IPW_DEBUG_INFO("Attempting to register device...\n");
6252
6253 printk(KERN_INFO DRV_NAME
6254 ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6255
6256 err = ipw2100_up(priv, 1);
6257 if (err)
6258 goto fail;
6259
6260 err = ipw2100_wdev_init(dev);
6261 if (err)
6262 goto fail;
6263 registered = 1;
6264
6265 /* Bring up the interface. Pre 0.46, after we registered the
6266 * network device we would call ipw2100_up. This introduced a race
6267 * condition with newer hotplug configurations (network was coming
6268 * up and making calls before the device was initialized).
6269 */
6270 err = register_netdev(dev);
6271 if (err) {
6272 printk(KERN_WARNING DRV_NAME
6273 "Error calling register_netdev.\n");
6274 goto fail;
6275 }
6276 registered = 2;
6277
6278 mutex_lock(&priv->action_mutex);
6279
6280 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6281
6282 /* perform this after register_netdev so that dev->name is set */
6283 err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6284 if (err)
6285 goto fail_unlock;
6286
6287 /* If the RF Kill switch is disabled, go ahead and complete the
6288 * startup sequence */
6289 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6290 /* Enable the adapter - sends HOST_COMPLETE */
6291 if (ipw2100_enable_adapter(priv)) {
6292 printk(KERN_WARNING DRV_NAME
6293 ": %s: failed in call to enable adapter.\n",
6294 priv->net_dev->name);
6295 ipw2100_hw_stop_adapter(priv);
6296 err = -EIO;
6297 goto fail_unlock;
6298 }
6299
6300 /* Start a scan . . . */
6301 ipw2100_set_scan_options(priv);
6302 ipw2100_start_scan(priv);
6303 }
6304
6305 IPW_DEBUG_INFO("exit\n");
6306
6307 priv->status |= STATUS_INITIALIZED;
6308
6309 mutex_unlock(&priv->action_mutex);
6310 out:
6311 return err;
6312
6313 fail_unlock:
6314 mutex_unlock(&priv->action_mutex);
6315 fail:
6316 if (dev) {
6317 if (registered >= 2)
6318 unregister_netdev(dev);
6319
6320 if (registered) {
6321 wiphy_unregister(priv->ieee->wdev.wiphy);
6322 kfree(priv->ieee->bg_band.channels);
6323 }
6324
6325 ipw2100_hw_stop_adapter(priv);
6326
6327 ipw2100_disable_interrupts(priv);
6328
6329 if (dev->irq)
6330 free_irq(dev->irq, priv);
6331
6332 ipw2100_kill_works(priv);
6333
6334 /* These are safe to call even if they weren't allocated */
6335 ipw2100_queues_free(priv);
6336 sysfs_remove_group(&pci_dev->dev.kobj,
6337 &ipw2100_attribute_group);
6338
6339 free_libipw(dev, 0);
6340 }
6341
6342 pci_iounmap(pci_dev, ioaddr);
6343
6344 pci_release_regions(pci_dev);
6345 pci_disable_device(pci_dev);
6346 goto out;
6347 }
6348
6349 static void ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6350 {
6351 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6352 struct net_device *dev = priv->net_dev;
6353
6354 mutex_lock(&priv->action_mutex);
6355
6356 priv->status &= ~STATUS_INITIALIZED;
6357
6358 sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6359
6360 #ifdef CONFIG_PM
6361 if (ipw2100_firmware.version)
6362 ipw2100_release_firmware(priv, &ipw2100_firmware);
6363 #endif
6364 /* Take down the hardware */
6365 ipw2100_down(priv);
6366
6367 /* Release the mutex so that the network subsystem can
6368 * complete any needed calls into the driver... */
6369 mutex_unlock(&priv->action_mutex);
6370
6371 /* Unregister the device first - this results in close()
6372 * being called if the device is open. If we free storage
6373 * first, then close() will crash.
6374 * FIXME: remove the comment above. */
6375 unregister_netdev(dev);
6376
6377 ipw2100_kill_works(priv);
6378
6379 ipw2100_queues_free(priv);
6380
6381 /* Free potential debugging firmware snapshot */
6382 ipw2100_snapshot_free(priv);
6383
6384 free_irq(dev->irq, priv);
6385
6386 pci_iounmap(pci_dev, priv->ioaddr);
6387
6388 /* wiphy_unregister needs to be here, before free_libipw */
6389 wiphy_unregister(priv->ieee->wdev.wiphy);
6390 kfree(priv->ieee->bg_band.channels);
6391 free_libipw(dev, 0);
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 priv->suspend_at = ktime_get_boottime_seconds();
6421
6422 mutex_unlock(&priv->action_mutex);
6423
6424 return 0;
6425 }
6426
6427 static int ipw2100_resume(struct pci_dev *pci_dev)
6428 {
6429 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6430 struct net_device *dev = priv->net_dev;
6431 int err;
6432 u32 val;
6433
6434 if (IPW2100_PM_DISABLED)
6435 return 0;
6436
6437 mutex_lock(&priv->action_mutex);
6438
6439 IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6440
6441 pci_set_power_state(pci_dev, PCI_D0);
6442 err = pci_enable_device(pci_dev);
6443 if (err) {
6444 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
6445 dev->name);
6446 mutex_unlock(&priv->action_mutex);
6447 return err;
6448 }
6449 pci_restore_state(pci_dev);
6450
6451 /*
6452 * Suspend/Resume resets the PCI configuration space, so we have to
6453 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6454 * from interfering with C3 CPU state. pci_restore_state won't help
6455 * here since it only restores the first 64 bytes pci config header.
6456 */
6457 pci_read_config_dword(pci_dev, 0x40, &val);
6458 if ((val & 0x0000ff00) != 0)
6459 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6460
6461 /* Set the device back into the PRESENT state; this will also wake
6462 * the queue of needed */
6463 netif_device_attach(dev);
6464
6465 priv->suspend_time = ktime_get_boottime_seconds() - priv->suspend_at;
6466
6467 /* Bring the device back up */
6468 if (!(priv->status & STATUS_RF_KILL_SW))
6469 ipw2100_up(priv, 0);
6470
6471 mutex_unlock(&priv->action_mutex);
6472
6473 return 0;
6474 }
6475 #endif
6476
6477 static void ipw2100_shutdown(struct pci_dev *pci_dev)
6478 {
6479 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6480
6481 /* Take down the device; powers it off, etc. */
6482 ipw2100_down(priv);
6483
6484 pci_disable_device(pci_dev);
6485 }
6486
6487 #define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6488
6489 static const struct pci_device_id ipw2100_pci_id_table[] = {
6490 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6491 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6492 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6493 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6494 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6495 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6496 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6497 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6498 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6499 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6500 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6501 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6502 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6503
6504 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6505 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6506 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6507 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6508 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6509
6510 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6511 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6512 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6513 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6514 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6515 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6516 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6517
6518 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6519
6520 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6521 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6522 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6523 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6524 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6525 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6526 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6527
6528 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6529 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6530 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6531 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6532 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6533 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6534
6535 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6536 {0,},
6537 };
6538
6539 MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6540
6541 static struct pci_driver ipw2100_pci_driver = {
6542 .name = DRV_NAME,
6543 .id_table = ipw2100_pci_id_table,
6544 .probe = ipw2100_pci_init_one,
6545 .remove = ipw2100_pci_remove_one,
6546 #ifdef CONFIG_PM
6547 .suspend = ipw2100_suspend,
6548 .resume = ipw2100_resume,
6549 #endif
6550 .shutdown = ipw2100_shutdown,
6551 };
6552
6553 /**
6554 * Initialize the ipw2100 driver/module
6555 *
6556 * @returns 0 if ok, < 0 errno node con error.
6557 *
6558 * Note: we cannot init the /proc stuff until the PCI driver is there,
6559 * or we risk an unlikely race condition on someone accessing
6560 * uninitialized data in the PCI dev struct through /proc.
6561 */
6562 static int __init ipw2100_init(void)
6563 {
6564 int ret;
6565
6566 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6567 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6568
6569 pm_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
6570 PM_QOS_DEFAULT_VALUE);
6571
6572 ret = pci_register_driver(&ipw2100_pci_driver);
6573 if (ret)
6574 goto out;
6575
6576 #ifdef CONFIG_IPW2100_DEBUG
6577 ipw2100_debug_level = debug;
6578 ret = driver_create_file(&ipw2100_pci_driver.driver,
6579 &driver_attr_debug_level);
6580 #endif
6581
6582 out:
6583 return ret;
6584 }
6585
6586 /**
6587 * Cleanup ipw2100 driver registration
6588 */
6589 static void __exit ipw2100_exit(void)
6590 {
6591 /* FIXME: IPG: check that we have no instances of the devices open */
6592 #ifdef CONFIG_IPW2100_DEBUG
6593 driver_remove_file(&ipw2100_pci_driver.driver,
6594 &driver_attr_debug_level);
6595 #endif
6596 pci_unregister_driver(&ipw2100_pci_driver);
6597 pm_qos_remove_request(&ipw2100_pm_qos_req);
6598 }
6599
6600 module_init(ipw2100_init);
6601 module_exit(ipw2100_exit);
6602
6603 static int ipw2100_wx_get_name(struct net_device *dev,
6604 struct iw_request_info *info,
6605 union iwreq_data *wrqu, char *extra)
6606 {
6607 /*
6608 * This can be called at any time. No action lock required
6609 */
6610
6611 struct ipw2100_priv *priv = libipw_priv(dev);
6612 if (!(priv->status & STATUS_ASSOCIATED))
6613 strcpy(wrqu->name, "unassociated");
6614 else
6615 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6616
6617 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6618 return 0;
6619 }
6620
6621 static int ipw2100_wx_set_freq(struct net_device *dev,
6622 struct iw_request_info *info,
6623 union iwreq_data *wrqu, char *extra)
6624 {
6625 struct ipw2100_priv *priv = libipw_priv(dev);
6626 struct iw_freq *fwrq = &wrqu->freq;
6627 int err = 0;
6628
6629 if (priv->ieee->iw_mode == IW_MODE_INFRA)
6630 return -EOPNOTSUPP;
6631
6632 mutex_lock(&priv->action_mutex);
6633 if (!(priv->status & STATUS_INITIALIZED)) {
6634 err = -EIO;
6635 goto done;
6636 }
6637
6638 /* if setting by freq convert to channel */
6639 if (fwrq->e == 1) {
6640 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6641 int f = fwrq->m / 100000;
6642 int c = 0;
6643
6644 while ((c < REG_MAX_CHANNEL) &&
6645 (f != ipw2100_frequencies[c]))
6646 c++;
6647
6648 /* hack to fall through */
6649 fwrq->e = 0;
6650 fwrq->m = c + 1;
6651 }
6652 }
6653
6654 if (fwrq->e > 0 || fwrq->m > 1000) {
6655 err = -EOPNOTSUPP;
6656 goto done;
6657 } else { /* Set the channel */
6658 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m);
6659 err = ipw2100_set_channel(priv, fwrq->m, 0);
6660 }
6661
6662 done:
6663 mutex_unlock(&priv->action_mutex);
6664 return err;
6665 }
6666
6667 static int ipw2100_wx_get_freq(struct net_device *dev,
6668 struct iw_request_info *info,
6669 union iwreq_data *wrqu, char *extra)
6670 {
6671 /*
6672 * This can be called at any time. No action lock required
6673 */
6674
6675 struct ipw2100_priv *priv = libipw_priv(dev);
6676
6677 wrqu->freq.e = 0;
6678
6679 /* If we are associated, trying to associate, or have a statically
6680 * configured CHANNEL then return that; otherwise return ANY */
6681 if (priv->config & CFG_STATIC_CHANNEL ||
6682 priv->status & STATUS_ASSOCIATED)
6683 wrqu->freq.m = priv->channel;
6684 else
6685 wrqu->freq.m = 0;
6686
6687 IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel);
6688 return 0;
6689
6690 }
6691
6692 static int ipw2100_wx_set_mode(struct net_device *dev,
6693 struct iw_request_info *info,
6694 union iwreq_data *wrqu, char *extra)
6695 {
6696 struct ipw2100_priv *priv = libipw_priv(dev);
6697 int err = 0;
6698
6699 IPW_DEBUG_WX("SET Mode -> %d\n", wrqu->mode);
6700
6701 if (wrqu->mode == priv->ieee->iw_mode)
6702 return 0;
6703
6704 mutex_lock(&priv->action_mutex);
6705 if (!(priv->status & STATUS_INITIALIZED)) {
6706 err = -EIO;
6707 goto done;
6708 }
6709
6710 switch (wrqu->mode) {
6711 #ifdef CONFIG_IPW2100_MONITOR
6712 case IW_MODE_MONITOR:
6713 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
6714 break;
6715 #endif /* CONFIG_IPW2100_MONITOR */
6716 case IW_MODE_ADHOC:
6717 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
6718 break;
6719 case IW_MODE_INFRA:
6720 case IW_MODE_AUTO:
6721 default:
6722 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
6723 break;
6724 }
6725
6726 done:
6727 mutex_unlock(&priv->action_mutex);
6728 return err;
6729 }
6730
6731 static int ipw2100_wx_get_mode(struct net_device *dev,
6732 struct iw_request_info *info,
6733 union iwreq_data *wrqu, char *extra)
6734 {
6735 /*
6736 * This can be called at any time. No action lock required
6737 */
6738
6739 struct ipw2100_priv *priv = libipw_priv(dev);
6740
6741 wrqu->mode = priv->ieee->iw_mode;
6742 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
6743
6744 return 0;
6745 }
6746
6747 #define POWER_MODES 5
6748
6749 /* Values are in microsecond */
6750 static const s32 timeout_duration[POWER_MODES] = {
6751 350000,
6752 250000,
6753 75000,
6754 37000,
6755 25000,
6756 };
6757
6758 static const s32 period_duration[POWER_MODES] = {
6759 400000,
6760 700000,
6761 1000000,
6762 1000000,
6763 1000000
6764 };
6765
6766 static int ipw2100_wx_get_range(struct net_device *dev,
6767 struct iw_request_info *info,
6768 union iwreq_data *wrqu, char *extra)
6769 {
6770 /*
6771 * This can be called at any time. No action lock required
6772 */
6773
6774 struct ipw2100_priv *priv = libipw_priv(dev);
6775 struct iw_range *range = (struct iw_range *)extra;
6776 u16 val;
6777 int i, level;
6778
6779 wrqu->data.length = sizeof(*range);
6780 memset(range, 0, sizeof(*range));
6781
6782 /* Let's try to keep this struct in the same order as in
6783 * linux/include/wireless.h
6784 */
6785
6786 /* TODO: See what values we can set, and remove the ones we can't
6787 * set, or fill them with some default data.
6788 */
6789
6790 /* ~5 Mb/s real (802.11b) */
6791 range->throughput = 5 * 1000 * 1000;
6792
6793 // range->sensitivity; /* signal level threshold range */
6794
6795 range->max_qual.qual = 100;
6796 /* TODO: Find real max RSSI and stick here */
6797 range->max_qual.level = 0;
6798 range->max_qual.noise = 0;
6799 range->max_qual.updated = 7; /* Updated all three */
6800
6801 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
6802 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
6803 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
6804 range->avg_qual.noise = 0;
6805 range->avg_qual.updated = 7; /* Updated all three */
6806
6807 range->num_bitrates = RATE_COUNT;
6808
6809 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
6810 range->bitrate[i] = ipw2100_bg_rates[i].bitrate * 100 * 1000;
6811 }
6812
6813 range->min_rts = MIN_RTS_THRESHOLD;
6814 range->max_rts = MAX_RTS_THRESHOLD;
6815 range->min_frag = MIN_FRAG_THRESHOLD;
6816 range->max_frag = MAX_FRAG_THRESHOLD;
6817
6818 range->min_pmp = period_duration[0]; /* Minimal PM period */
6819 range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */
6820 range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */
6821 range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */
6822
6823 /* How to decode max/min PM period */
6824 range->pmp_flags = IW_POWER_PERIOD;
6825 /* How to decode max/min PM period */
6826 range->pmt_flags = IW_POWER_TIMEOUT;
6827 /* What PM options are supported */
6828 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
6829
6830 range->encoding_size[0] = 5;
6831 range->encoding_size[1] = 13; /* Different token sizes */
6832 range->num_encoding_sizes = 2; /* Number of entry in the list */
6833 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */
6834 // range->encoding_login_index; /* token index for login token */
6835
6836 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6837 range->txpower_capa = IW_TXPOW_DBM;
6838 range->num_txpower = IW_MAX_TXPOWER;
6839 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
6840 i < IW_MAX_TXPOWER;
6841 i++, level -=
6842 ((IPW_TX_POWER_MAX_DBM -
6843 IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
6844 range->txpower[i] = level / 16;
6845 } else {
6846 range->txpower_capa = 0;
6847 range->num_txpower = 0;
6848 }
6849
6850 /* Set the Wireless Extension versions */
6851 range->we_version_compiled = WIRELESS_EXT;
6852 range->we_version_source = 18;
6853
6854 // range->retry_capa; /* What retry options are supported */
6855 // range->retry_flags; /* How to decode max/min retry limit */
6856 // range->r_time_flags; /* How to decode max/min retry life */
6857 // range->min_retry; /* Minimal number of retries */
6858 // range->max_retry; /* Maximal number of retries */
6859 // range->min_r_time; /* Minimal retry lifetime */
6860 // range->max_r_time; /* Maximal retry lifetime */
6861
6862 range->num_channels = FREQ_COUNT;
6863
6864 val = 0;
6865 for (i = 0; i < FREQ_COUNT; i++) {
6866 // TODO: Include only legal frequencies for some countries
6867 // if (local->channel_mask & (1 << i)) {
6868 range->freq[val].i = i + 1;
6869 range->freq[val].m = ipw2100_frequencies[i] * 100000;
6870 range->freq[val].e = 1;
6871 val++;
6872 // }
6873 if (val == IW_MAX_FREQUENCIES)
6874 break;
6875 }
6876 range->num_frequency = val;
6877
6878 /* Event capability (kernel + driver) */
6879 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6880 IW_EVENT_CAPA_MASK(SIOCGIWAP));
6881 range->event_capa[1] = IW_EVENT_CAPA_K_1;
6882
6883 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
6884 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
6885
6886 IPW_DEBUG_WX("GET Range\n");
6887
6888 return 0;
6889 }
6890
6891 static int ipw2100_wx_set_wap(struct net_device *dev,
6892 struct iw_request_info *info,
6893 union iwreq_data *wrqu, char *extra)
6894 {
6895 struct ipw2100_priv *priv = libipw_priv(dev);
6896 int err = 0;
6897
6898 // sanity checks
6899 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
6900 return -EINVAL;
6901
6902 mutex_lock(&priv->action_mutex);
6903 if (!(priv->status & STATUS_INITIALIZED)) {
6904 err = -EIO;
6905 goto done;
6906 }
6907
6908 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
6909 is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
6910 /* we disable mandatory BSSID association */
6911 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
6912 priv->config &= ~CFG_STATIC_BSSID;
6913 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
6914 goto done;
6915 }
6916
6917 priv->config |= CFG_STATIC_BSSID;
6918 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
6919
6920 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
6921
6922 IPW_DEBUG_WX("SET BSSID -> %pM\n", wrqu->ap_addr.sa_data);
6923
6924 done:
6925 mutex_unlock(&priv->action_mutex);
6926 return err;
6927 }
6928
6929 static int ipw2100_wx_get_wap(struct net_device *dev,
6930 struct iw_request_info *info,
6931 union iwreq_data *wrqu, char *extra)
6932 {
6933 /*
6934 * This can be called at any time. No action lock required
6935 */
6936
6937 struct ipw2100_priv *priv = libipw_priv(dev);
6938
6939 /* If we are associated, trying to associate, or have a statically
6940 * configured BSSID then return that; otherwise return ANY */
6941 if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
6942 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
6943 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
6944 } else
6945 eth_zero_addr(wrqu->ap_addr.sa_data);
6946
6947 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", wrqu->ap_addr.sa_data);
6948 return 0;
6949 }
6950
6951 static int ipw2100_wx_set_essid(struct net_device *dev,
6952 struct iw_request_info *info,
6953 union iwreq_data *wrqu, char *extra)
6954 {
6955 struct ipw2100_priv *priv = libipw_priv(dev);
6956 char *essid = ""; /* ANY */
6957 int length = 0;
6958 int err = 0;
6959
6960 mutex_lock(&priv->action_mutex);
6961 if (!(priv->status & STATUS_INITIALIZED)) {
6962 err = -EIO;
6963 goto done;
6964 }
6965
6966 if (wrqu->essid.flags && wrqu->essid.length) {
6967 length = wrqu->essid.length;
6968 essid = extra;
6969 }
6970
6971 if (length == 0) {
6972 IPW_DEBUG_WX("Setting ESSID to ANY\n");
6973 priv->config &= ~CFG_STATIC_ESSID;
6974 err = ipw2100_set_essid(priv, NULL, 0, 0);
6975 goto done;
6976 }
6977
6978 length = min(length, IW_ESSID_MAX_SIZE);
6979
6980 priv->config |= CFG_STATIC_ESSID;
6981
6982 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
6983 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
6984 err = 0;
6985 goto done;
6986 }
6987
6988 IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, essid, length);
6989
6990 priv->essid_len = length;
6991 memcpy(priv->essid, essid, priv->essid_len);
6992
6993 err = ipw2100_set_essid(priv, essid, length, 0);
6994
6995 done:
6996 mutex_unlock(&priv->action_mutex);
6997 return err;
6998 }
6999
7000 static int ipw2100_wx_get_essid(struct net_device *dev,
7001 struct iw_request_info *info,
7002 union iwreq_data *wrqu, char *extra)
7003 {
7004 /*
7005 * This can be called at any time. No action lock required
7006 */
7007
7008 struct ipw2100_priv *priv = libipw_priv(dev);
7009
7010 /* If we are associated, trying to associate, or have a statically
7011 * configured ESSID then return that; otherwise return ANY */
7012 if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
7013 IPW_DEBUG_WX("Getting essid: '%*pE'\n",
7014 priv->essid_len, priv->essid);
7015 memcpy(extra, priv->essid, priv->essid_len);
7016 wrqu->essid.length = priv->essid_len;
7017 wrqu->essid.flags = 1; /* active */
7018 } else {
7019 IPW_DEBUG_WX("Getting essid: ANY\n");
7020 wrqu->essid.length = 0;
7021 wrqu->essid.flags = 0; /* active */
7022 }
7023
7024 return 0;
7025 }
7026
7027 static int ipw2100_wx_set_nick(struct net_device *dev,
7028 struct iw_request_info *info,
7029 union iwreq_data *wrqu, char *extra)
7030 {
7031 /*
7032 * This can be called at any time. No action lock required
7033 */
7034
7035 struct ipw2100_priv *priv = libipw_priv(dev);
7036
7037 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7038 return -E2BIG;
7039
7040 wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick));
7041 memset(priv->nick, 0, sizeof(priv->nick));
7042 memcpy(priv->nick, extra, wrqu->data.length);
7043
7044 IPW_DEBUG_WX("SET Nickname -> %s\n", priv->nick);
7045
7046 return 0;
7047 }
7048
7049 static int ipw2100_wx_get_nick(struct net_device *dev,
7050 struct iw_request_info *info,
7051 union iwreq_data *wrqu, char *extra)
7052 {
7053 /*
7054 * This can be called at any time. No action lock required
7055 */
7056
7057 struct ipw2100_priv *priv = libipw_priv(dev);
7058
7059 wrqu->data.length = strlen(priv->nick);
7060 memcpy(extra, priv->nick, wrqu->data.length);
7061 wrqu->data.flags = 1; /* active */
7062
7063 IPW_DEBUG_WX("GET Nickname -> %s\n", extra);
7064
7065 return 0;
7066 }
7067
7068 static int ipw2100_wx_set_rate(struct net_device *dev,
7069 struct iw_request_info *info,
7070 union iwreq_data *wrqu, char *extra)
7071 {
7072 struct ipw2100_priv *priv = libipw_priv(dev);
7073 u32 target_rate = wrqu->bitrate.value;
7074 u32 rate;
7075 int err = 0;
7076
7077 mutex_lock(&priv->action_mutex);
7078 if (!(priv->status & STATUS_INITIALIZED)) {
7079 err = -EIO;
7080 goto done;
7081 }
7082
7083 rate = 0;
7084
7085 if (target_rate == 1000000 ||
7086 (!wrqu->bitrate.fixed && target_rate > 1000000))
7087 rate |= TX_RATE_1_MBIT;
7088 if (target_rate == 2000000 ||
7089 (!wrqu->bitrate.fixed && target_rate > 2000000))
7090 rate |= TX_RATE_2_MBIT;
7091 if (target_rate == 5500000 ||
7092 (!wrqu->bitrate.fixed && target_rate > 5500000))
7093 rate |= TX_RATE_5_5_MBIT;
7094 if (target_rate == 11000000 ||
7095 (!wrqu->bitrate.fixed && target_rate > 11000000))
7096 rate |= TX_RATE_11_MBIT;
7097 if (rate == 0)
7098 rate = DEFAULT_TX_RATES;
7099
7100 err = ipw2100_set_tx_rates(priv, rate, 0);
7101
7102 IPW_DEBUG_WX("SET Rate -> %04X\n", rate);
7103 done:
7104 mutex_unlock(&priv->action_mutex);
7105 return err;
7106 }
7107
7108 static int ipw2100_wx_get_rate(struct net_device *dev,
7109 struct iw_request_info *info,
7110 union iwreq_data *wrqu, char *extra)
7111 {
7112 struct ipw2100_priv *priv = libipw_priv(dev);
7113 int val;
7114 unsigned int len = sizeof(val);
7115 int err = 0;
7116
7117 if (!(priv->status & STATUS_ENABLED) ||
7118 priv->status & STATUS_RF_KILL_MASK ||
7119 !(priv->status & STATUS_ASSOCIATED)) {
7120 wrqu->bitrate.value = 0;
7121 return 0;
7122 }
7123
7124 mutex_lock(&priv->action_mutex);
7125 if (!(priv->status & STATUS_INITIALIZED)) {
7126 err = -EIO;
7127 goto done;
7128 }
7129
7130 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7131 if (err) {
7132 IPW_DEBUG_WX("failed querying ordinals.\n");
7133 goto done;
7134 }
7135
7136 switch (val & TX_RATE_MASK) {
7137 case TX_RATE_1_MBIT:
7138 wrqu->bitrate.value = 1000000;
7139 break;
7140 case TX_RATE_2_MBIT:
7141 wrqu->bitrate.value = 2000000;
7142 break;
7143 case TX_RATE_5_5_MBIT:
7144 wrqu->bitrate.value = 5500000;
7145 break;
7146 case TX_RATE_11_MBIT:
7147 wrqu->bitrate.value = 11000000;
7148 break;
7149 default:
7150 wrqu->bitrate.value = 0;
7151 }
7152
7153 IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value);
7154
7155 done:
7156 mutex_unlock(&priv->action_mutex);
7157 return err;
7158 }
7159
7160 static int ipw2100_wx_set_rts(struct net_device *dev,
7161 struct iw_request_info *info,
7162 union iwreq_data *wrqu, char *extra)
7163 {
7164 struct ipw2100_priv *priv = libipw_priv(dev);
7165 int value, err;
7166
7167 /* Auto RTS not yet supported */
7168 if (wrqu->rts.fixed == 0)
7169 return -EINVAL;
7170
7171 mutex_lock(&priv->action_mutex);
7172 if (!(priv->status & STATUS_INITIALIZED)) {
7173 err = -EIO;
7174 goto done;
7175 }
7176
7177 if (wrqu->rts.disabled)
7178 value = priv->rts_threshold | RTS_DISABLED;
7179 else {
7180 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7181 err = -EINVAL;
7182 goto done;
7183 }
7184 value = wrqu->rts.value;
7185 }
7186
7187 err = ipw2100_set_rts_threshold(priv, value);
7188
7189 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X\n", value);
7190 done:
7191 mutex_unlock(&priv->action_mutex);
7192 return err;
7193 }
7194
7195 static int ipw2100_wx_get_rts(struct net_device *dev,
7196 struct iw_request_info *info,
7197 union iwreq_data *wrqu, char *extra)
7198 {
7199 /*
7200 * This can be called at any time. No action lock required
7201 */
7202
7203 struct ipw2100_priv *priv = libipw_priv(dev);
7204
7205 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7206 wrqu->rts.fixed = 1; /* no auto select */
7207
7208 /* If RTS is set to the default value, then it is disabled */
7209 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7210
7211 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X\n", wrqu->rts.value);
7212
7213 return 0;
7214 }
7215
7216 static int ipw2100_wx_set_txpow(struct net_device *dev,
7217 struct iw_request_info *info,
7218 union iwreq_data *wrqu, char *extra)
7219 {
7220 struct ipw2100_priv *priv = libipw_priv(dev);
7221 int err = 0, value;
7222
7223 if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled))
7224 return -EINPROGRESS;
7225
7226 if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7227 return 0;
7228
7229 if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
7230 return -EINVAL;
7231
7232 if (wrqu->txpower.fixed == 0)
7233 value = IPW_TX_POWER_DEFAULT;
7234 else {
7235 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7236 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7237 return -EINVAL;
7238
7239 value = wrqu->txpower.value;
7240 }
7241
7242 mutex_lock(&priv->action_mutex);
7243 if (!(priv->status & STATUS_INITIALIZED)) {
7244 err = -EIO;
7245 goto done;
7246 }
7247
7248 err = ipw2100_set_tx_power(priv, value);
7249
7250 IPW_DEBUG_WX("SET TX Power -> %d\n", value);
7251
7252 done:
7253 mutex_unlock(&priv->action_mutex);
7254 return err;
7255 }
7256
7257 static int ipw2100_wx_get_txpow(struct net_device *dev,
7258 struct iw_request_info *info,
7259 union iwreq_data *wrqu, char *extra)
7260 {
7261 /*
7262 * This can be called at any time. No action lock required
7263 */
7264
7265 struct ipw2100_priv *priv = libipw_priv(dev);
7266
7267 wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
7268
7269 if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7270 wrqu->txpower.fixed = 0;
7271 wrqu->txpower.value = IPW_TX_POWER_MAX_DBM;
7272 } else {
7273 wrqu->txpower.fixed = 1;
7274 wrqu->txpower.value = priv->tx_power;
7275 }
7276
7277 wrqu->txpower.flags = IW_TXPOW_DBM;
7278
7279 IPW_DEBUG_WX("GET TX Power -> %d\n", wrqu->txpower.value);
7280
7281 return 0;
7282 }
7283
7284 static int ipw2100_wx_set_frag(struct net_device *dev,
7285 struct iw_request_info *info,
7286 union iwreq_data *wrqu, char *extra)
7287 {
7288 /*
7289 * This can be called at any time. No action lock required
7290 */
7291
7292 struct ipw2100_priv *priv = libipw_priv(dev);
7293
7294 if (!wrqu->frag.fixed)
7295 return -EINVAL;
7296
7297 if (wrqu->frag.disabled) {
7298 priv->frag_threshold |= FRAG_DISABLED;
7299 priv->ieee->fts = DEFAULT_FTS;
7300 } else {
7301 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7302 wrqu->frag.value > MAX_FRAG_THRESHOLD)
7303 return -EINVAL;
7304
7305 priv->ieee->fts = wrqu->frag.value & ~0x1;
7306 priv->frag_threshold = priv->ieee->fts;
7307 }
7308
7309 IPW_DEBUG_WX("SET Frag Threshold -> %d\n", priv->ieee->fts);
7310
7311 return 0;
7312 }
7313
7314 static int ipw2100_wx_get_frag(struct net_device *dev,
7315 struct iw_request_info *info,
7316 union iwreq_data *wrqu, char *extra)
7317 {
7318 /*
7319 * This can be called at any time. No action lock required
7320 */
7321
7322 struct ipw2100_priv *priv = libipw_priv(dev);
7323 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7324 wrqu->frag.fixed = 0; /* no auto select */
7325 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7326
7327 IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value);
7328
7329 return 0;
7330 }
7331
7332 static int ipw2100_wx_set_retry(struct net_device *dev,
7333 struct iw_request_info *info,
7334 union iwreq_data *wrqu, char *extra)
7335 {
7336 struct ipw2100_priv *priv = libipw_priv(dev);
7337 int err = 0;
7338
7339 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7340 return -EINVAL;
7341
7342 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7343 return 0;
7344
7345 mutex_lock(&priv->action_mutex);
7346 if (!(priv->status & STATUS_INITIALIZED)) {
7347 err = -EIO;
7348 goto done;
7349 }
7350
7351 if (wrqu->retry.flags & IW_RETRY_SHORT) {
7352 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7353 IPW_DEBUG_WX("SET Short Retry Limit -> %d\n",
7354 wrqu->retry.value);
7355 goto done;
7356 }
7357
7358 if (wrqu->retry.flags & IW_RETRY_LONG) {
7359 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7360 IPW_DEBUG_WX("SET Long Retry Limit -> %d\n",
7361 wrqu->retry.value);
7362 goto done;
7363 }
7364
7365 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7366 if (!err)
7367 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7368
7369 IPW_DEBUG_WX("SET Both Retry Limits -> %d\n", wrqu->retry.value);
7370
7371 done:
7372 mutex_unlock(&priv->action_mutex);
7373 return err;
7374 }
7375
7376 static int ipw2100_wx_get_retry(struct net_device *dev,
7377 struct iw_request_info *info,
7378 union iwreq_data *wrqu, char *extra)
7379 {
7380 /*
7381 * This can be called at any time. No action lock required
7382 */
7383
7384 struct ipw2100_priv *priv = libipw_priv(dev);
7385
7386 wrqu->retry.disabled = 0; /* can't be disabled */
7387
7388 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7389 return -EINVAL;
7390
7391 if (wrqu->retry.flags & IW_RETRY_LONG) {
7392 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
7393 wrqu->retry.value = priv->long_retry_limit;
7394 } else {
7395 wrqu->retry.flags =
7396 (priv->short_retry_limit !=
7397 priv->long_retry_limit) ?
7398 IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT;
7399
7400 wrqu->retry.value = priv->short_retry_limit;
7401 }
7402
7403 IPW_DEBUG_WX("GET Retry -> %d\n", wrqu->retry.value);
7404
7405 return 0;
7406 }
7407
7408 static int ipw2100_wx_set_scan(struct net_device *dev,
7409 struct iw_request_info *info,
7410 union iwreq_data *wrqu, char *extra)
7411 {
7412 struct ipw2100_priv *priv = libipw_priv(dev);
7413 int err = 0;
7414
7415 mutex_lock(&priv->action_mutex);
7416 if (!(priv->status & STATUS_INITIALIZED)) {
7417 err = -EIO;
7418 goto done;
7419 }
7420
7421 IPW_DEBUG_WX("Initiating scan...\n");
7422
7423 priv->user_requested_scan = 1;
7424 if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7425 IPW_DEBUG_WX("Start scan failed.\n");
7426
7427 /* TODO: Mark a scan as pending so when hardware initialized
7428 * a scan starts */
7429 }
7430
7431 done:
7432 mutex_unlock(&priv->action_mutex);
7433 return err;
7434 }
7435
7436 static int ipw2100_wx_get_scan(struct net_device *dev,
7437 struct iw_request_info *info,
7438 union iwreq_data *wrqu, char *extra)
7439 {
7440 /*
7441 * This can be called at any time. No action lock required
7442 */
7443
7444 struct ipw2100_priv *priv = libipw_priv(dev);
7445 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
7446 }
7447
7448 /*
7449 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7450 */
7451 static int ipw2100_wx_set_encode(struct net_device *dev,
7452 struct iw_request_info *info,
7453 union iwreq_data *wrqu, char *key)
7454 {
7455 /*
7456 * No check of STATUS_INITIALIZED required
7457 */
7458
7459 struct ipw2100_priv *priv = libipw_priv(dev);
7460 return libipw_wx_set_encode(priv->ieee, info, wrqu, key);
7461 }
7462
7463 static int ipw2100_wx_get_encode(struct net_device *dev,
7464 struct iw_request_info *info,
7465 union iwreq_data *wrqu, char *key)
7466 {
7467 /*
7468 * This can be called at any time. No action lock required
7469 */
7470
7471 struct ipw2100_priv *priv = libipw_priv(dev);
7472 return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
7473 }
7474
7475 static int ipw2100_wx_set_power(struct net_device *dev,
7476 struct iw_request_info *info,
7477 union iwreq_data *wrqu, char *extra)
7478 {
7479 struct ipw2100_priv *priv = libipw_priv(dev);
7480 int err = 0;
7481
7482 mutex_lock(&priv->action_mutex);
7483 if (!(priv->status & STATUS_INITIALIZED)) {
7484 err = -EIO;
7485 goto done;
7486 }
7487
7488 if (wrqu->power.disabled) {
7489 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7490 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7491 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7492 goto done;
7493 }
7494
7495 switch (wrqu->power.flags & IW_POWER_MODE) {
7496 case IW_POWER_ON: /* If not specified */
7497 case IW_POWER_MODE: /* If set all mask */
7498 case IW_POWER_ALL_R: /* If explicitly state all */
7499 break;
7500 default: /* Otherwise we don't support it */
7501 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7502 wrqu->power.flags);
7503 err = -EOPNOTSUPP;
7504 goto done;
7505 }
7506
7507 /* If the user hasn't specified a power management mode yet, default
7508 * to BATTERY */
7509 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7510 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7511
7512 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7513
7514 done:
7515 mutex_unlock(&priv->action_mutex);
7516 return err;
7517
7518 }
7519
7520 static int ipw2100_wx_get_power(struct net_device *dev,
7521 struct iw_request_info *info,
7522 union iwreq_data *wrqu, char *extra)
7523 {
7524 /*
7525 * This can be called at any time. No action lock required
7526 */
7527
7528 struct ipw2100_priv *priv = libipw_priv(dev);
7529
7530 if (!(priv->power_mode & IPW_POWER_ENABLED))
7531 wrqu->power.disabled = 1;
7532 else {
7533 wrqu->power.disabled = 0;
7534 wrqu->power.flags = 0;
7535 }
7536
7537 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7538
7539 return 0;
7540 }
7541
7542 /*
7543 * WE-18 WPA support
7544 */
7545
7546 /* SIOCSIWGENIE */
7547 static int ipw2100_wx_set_genie(struct net_device *dev,
7548 struct iw_request_info *info,
7549 union iwreq_data *wrqu, char *extra)
7550 {
7551
7552 struct ipw2100_priv *priv = libipw_priv(dev);
7553 struct libipw_device *ieee = priv->ieee;
7554 u8 *buf;
7555
7556 if (!ieee->wpa_enabled)
7557 return -EOPNOTSUPP;
7558
7559 if (wrqu->data.length > MAX_WPA_IE_LEN ||
7560 (wrqu->data.length && extra == NULL))
7561 return -EINVAL;
7562
7563 if (wrqu->data.length) {
7564 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
7565 if (buf == NULL)
7566 return -ENOMEM;
7567
7568 kfree(ieee->wpa_ie);
7569 ieee->wpa_ie = buf;
7570 ieee->wpa_ie_len = wrqu->data.length;
7571 } else {
7572 kfree(ieee->wpa_ie);
7573 ieee->wpa_ie = NULL;
7574 ieee->wpa_ie_len = 0;
7575 }
7576
7577 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7578
7579 return 0;
7580 }
7581
7582 /* SIOCGIWGENIE */
7583 static int ipw2100_wx_get_genie(struct net_device *dev,
7584 struct iw_request_info *info,
7585 union iwreq_data *wrqu, char *extra)
7586 {
7587 struct ipw2100_priv *priv = libipw_priv(dev);
7588 struct libipw_device *ieee = priv->ieee;
7589
7590 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7591 wrqu->data.length = 0;
7592 return 0;
7593 }
7594
7595 if (wrqu->data.length < ieee->wpa_ie_len)
7596 return -E2BIG;
7597
7598 wrqu->data.length = ieee->wpa_ie_len;
7599 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7600
7601 return 0;
7602 }
7603
7604 /* SIOCSIWAUTH */
7605 static int ipw2100_wx_set_auth(struct net_device *dev,
7606 struct iw_request_info *info,
7607 union iwreq_data *wrqu, char *extra)
7608 {
7609 struct ipw2100_priv *priv = libipw_priv(dev);
7610 struct libipw_device *ieee = priv->ieee;
7611 struct iw_param *param = &wrqu->param;
7612 struct lib80211_crypt_data *crypt;
7613 unsigned long flags;
7614 int ret = 0;
7615
7616 switch (param->flags & IW_AUTH_INDEX) {
7617 case IW_AUTH_WPA_VERSION:
7618 case IW_AUTH_CIPHER_PAIRWISE:
7619 case IW_AUTH_CIPHER_GROUP:
7620 case IW_AUTH_KEY_MGMT:
7621 /*
7622 * ipw2200 does not use these parameters
7623 */
7624 break;
7625
7626 case IW_AUTH_TKIP_COUNTERMEASURES:
7627 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7628 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
7629 break;
7630
7631 flags = crypt->ops->get_flags(crypt->priv);
7632
7633 if (param->value)
7634 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7635 else
7636 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7637
7638 crypt->ops->set_flags(flags, crypt->priv);
7639
7640 break;
7641
7642 case IW_AUTH_DROP_UNENCRYPTED:{
7643 /* HACK:
7644 *
7645 * wpa_supplicant calls set_wpa_enabled when the driver
7646 * is loaded and unloaded, regardless of if WPA is being
7647 * used. No other calls are made which can be used to
7648 * determine if encryption will be used or not prior to
7649 * association being expected. If encryption is not being
7650 * used, drop_unencrypted is set to false, else true -- we
7651 * can use this to determine if the CAP_PRIVACY_ON bit should
7652 * be set.
7653 */
7654 struct libipw_security sec = {
7655 .flags = SEC_ENABLED,
7656 .enabled = param->value,
7657 };
7658 priv->ieee->drop_unencrypted = param->value;
7659 /* We only change SEC_LEVEL for open mode. Others
7660 * are set by ipw_wpa_set_encryption.
7661 */
7662 if (!param->value) {
7663 sec.flags |= SEC_LEVEL;
7664 sec.level = SEC_LEVEL_0;
7665 } else {
7666 sec.flags |= SEC_LEVEL;
7667 sec.level = SEC_LEVEL_1;
7668 }
7669 if (priv->ieee->set_security)
7670 priv->ieee->set_security(priv->ieee->dev, &sec);
7671 break;
7672 }
7673
7674 case IW_AUTH_80211_AUTH_ALG:
7675 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7676 break;
7677
7678 case IW_AUTH_WPA_ENABLED:
7679 ret = ipw2100_wpa_enable(priv, param->value);
7680 break;
7681
7682 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7683 ieee->ieee802_1x = param->value;
7684 break;
7685
7686 //case IW_AUTH_ROAMING_CONTROL:
7687 case IW_AUTH_PRIVACY_INVOKED:
7688 ieee->privacy_invoked = param->value;
7689 break;
7690
7691 default:
7692 return -EOPNOTSUPP;
7693 }
7694 return ret;
7695 }
7696
7697 /* SIOCGIWAUTH */
7698 static int ipw2100_wx_get_auth(struct net_device *dev,
7699 struct iw_request_info *info,
7700 union iwreq_data *wrqu, char *extra)
7701 {
7702 struct ipw2100_priv *priv = libipw_priv(dev);
7703 struct libipw_device *ieee = priv->ieee;
7704 struct lib80211_crypt_data *crypt;
7705 struct iw_param *param = &wrqu->param;
7706
7707 switch (param->flags & IW_AUTH_INDEX) {
7708 case IW_AUTH_WPA_VERSION:
7709 case IW_AUTH_CIPHER_PAIRWISE:
7710 case IW_AUTH_CIPHER_GROUP:
7711 case IW_AUTH_KEY_MGMT:
7712 /*
7713 * wpa_supplicant will control these internally
7714 */
7715 break;
7716
7717 case IW_AUTH_TKIP_COUNTERMEASURES:
7718 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7719 if (!crypt || !crypt->ops->get_flags) {
7720 IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
7721 "crypt not set!\n");
7722 break;
7723 }
7724
7725 param->value = (crypt->ops->get_flags(crypt->priv) &
7726 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
7727
7728 break;
7729
7730 case IW_AUTH_DROP_UNENCRYPTED:
7731 param->value = ieee->drop_unencrypted;
7732 break;
7733
7734 case IW_AUTH_80211_AUTH_ALG:
7735 param->value = priv->ieee->sec.auth_mode;
7736 break;
7737
7738 case IW_AUTH_WPA_ENABLED:
7739 param->value = ieee->wpa_enabled;
7740 break;
7741
7742 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7743 param->value = ieee->ieee802_1x;
7744 break;
7745
7746 case IW_AUTH_ROAMING_CONTROL:
7747 case IW_AUTH_PRIVACY_INVOKED:
7748 param->value = ieee->privacy_invoked;
7749 break;
7750
7751 default:
7752 return -EOPNOTSUPP;
7753 }
7754 return 0;
7755 }
7756
7757 /* SIOCSIWENCODEEXT */
7758 static int ipw2100_wx_set_encodeext(struct net_device *dev,
7759 struct iw_request_info *info,
7760 union iwreq_data *wrqu, char *extra)
7761 {
7762 struct ipw2100_priv *priv = libipw_priv(dev);
7763 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
7764 }
7765
7766 /* SIOCGIWENCODEEXT */
7767 static int ipw2100_wx_get_encodeext(struct net_device *dev,
7768 struct iw_request_info *info,
7769 union iwreq_data *wrqu, char *extra)
7770 {
7771 struct ipw2100_priv *priv = libipw_priv(dev);
7772 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
7773 }
7774
7775 /* SIOCSIWMLME */
7776 static int ipw2100_wx_set_mlme(struct net_device *dev,
7777 struct iw_request_info *info,
7778 union iwreq_data *wrqu, char *extra)
7779 {
7780 struct ipw2100_priv *priv = libipw_priv(dev);
7781 struct iw_mlme *mlme = (struct iw_mlme *)extra;
7782
7783 switch (mlme->cmd) {
7784 case IW_MLME_DEAUTH:
7785 // silently ignore
7786 break;
7787
7788 case IW_MLME_DISASSOC:
7789 ipw2100_disassociate_bssid(priv);
7790 break;
7791
7792 default:
7793 return -EOPNOTSUPP;
7794 }
7795 return 0;
7796 }
7797
7798 /*
7799 *
7800 * IWPRIV handlers
7801 *
7802 */
7803 #ifdef CONFIG_IPW2100_MONITOR
7804 static int ipw2100_wx_set_promisc(struct net_device *dev,
7805 struct iw_request_info *info,
7806 union iwreq_data *wrqu, char *extra)
7807 {
7808 struct ipw2100_priv *priv = libipw_priv(dev);
7809 int *parms = (int *)extra;
7810 int enable = (parms[0] > 0);
7811 int err = 0;
7812
7813 mutex_lock(&priv->action_mutex);
7814 if (!(priv->status & STATUS_INITIALIZED)) {
7815 err = -EIO;
7816 goto done;
7817 }
7818
7819 if (enable) {
7820 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7821 err = ipw2100_set_channel(priv, parms[1], 0);
7822 goto done;
7823 }
7824 priv->channel = parms[1];
7825 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7826 } else {
7827 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
7828 err = ipw2100_switch_mode(priv, priv->last_mode);
7829 }
7830 done:
7831 mutex_unlock(&priv->action_mutex);
7832 return err;
7833 }
7834
7835 static int ipw2100_wx_reset(struct net_device *dev,
7836 struct iw_request_info *info,
7837 union iwreq_data *wrqu, char *extra)
7838 {
7839 struct ipw2100_priv *priv = libipw_priv(dev);
7840 if (priv->status & STATUS_INITIALIZED)
7841 schedule_reset(priv);
7842 return 0;
7843 }
7844
7845 #endif
7846
7847 static int ipw2100_wx_set_powermode(struct net_device *dev,
7848 struct iw_request_info *info,
7849 union iwreq_data *wrqu, char *extra)
7850 {
7851 struct ipw2100_priv *priv = libipw_priv(dev);
7852 int err = 0, mode = *(int *)extra;
7853
7854 mutex_lock(&priv->action_mutex);
7855 if (!(priv->status & STATUS_INITIALIZED)) {
7856 err = -EIO;
7857 goto done;
7858 }
7859
7860 if ((mode < 0) || (mode > POWER_MODES))
7861 mode = IPW_POWER_AUTO;
7862
7863 if (IPW_POWER_LEVEL(priv->power_mode) != mode)
7864 err = ipw2100_set_power_mode(priv, mode);
7865 done:
7866 mutex_unlock(&priv->action_mutex);
7867 return err;
7868 }
7869
7870 #define MAX_POWER_STRING 80
7871 static int ipw2100_wx_get_powermode(struct net_device *dev,
7872 struct iw_request_info *info,
7873 union iwreq_data *wrqu, char *extra)
7874 {
7875 /*
7876 * This can be called at any time. No action lock required
7877 */
7878
7879 struct ipw2100_priv *priv = libipw_priv(dev);
7880 int level = IPW_POWER_LEVEL(priv->power_mode);
7881 s32 timeout, period;
7882
7883 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7884 snprintf(extra, MAX_POWER_STRING,
7885 "Power save level: %d (Off)", level);
7886 } else {
7887 switch (level) {
7888 case IPW_POWER_MODE_CAM:
7889 snprintf(extra, MAX_POWER_STRING,
7890 "Power save level: %d (None)", level);
7891 break;
7892 case IPW_POWER_AUTO:
7893 snprintf(extra, MAX_POWER_STRING,
7894 "Power save level: %d (Auto)", level);
7895 break;
7896 default:
7897 timeout = timeout_duration[level - 1] / 1000;
7898 period = period_duration[level - 1] / 1000;
7899 snprintf(extra, MAX_POWER_STRING,
7900 "Power save level: %d "
7901 "(Timeout %dms, Period %dms)",
7902 level, timeout, period);
7903 }
7904 }
7905
7906 wrqu->data.length = strlen(extra) + 1;
7907
7908 return 0;
7909 }
7910
7911 static int ipw2100_wx_set_preamble(struct net_device *dev,
7912 struct iw_request_info *info,
7913 union iwreq_data *wrqu, char *extra)
7914 {
7915 struct ipw2100_priv *priv = libipw_priv(dev);
7916 int err, mode = *(int *)extra;
7917
7918 mutex_lock(&priv->action_mutex);
7919 if (!(priv->status & STATUS_INITIALIZED)) {
7920 err = -EIO;
7921 goto done;
7922 }
7923
7924 if (mode == 1)
7925 priv->config |= CFG_LONG_PREAMBLE;
7926 else if (mode == 0)
7927 priv->config &= ~CFG_LONG_PREAMBLE;
7928 else {
7929 err = -EINVAL;
7930 goto done;
7931 }
7932
7933 err = ipw2100_system_config(priv, 0);
7934
7935 done:
7936 mutex_unlock(&priv->action_mutex);
7937 return err;
7938 }
7939
7940 static int ipw2100_wx_get_preamble(struct net_device *dev,
7941 struct iw_request_info *info,
7942 union iwreq_data *wrqu, char *extra)
7943 {
7944 /*
7945 * This can be called at any time. No action lock required
7946 */
7947
7948 struct ipw2100_priv *priv = libipw_priv(dev);
7949
7950 if (priv->config & CFG_LONG_PREAMBLE)
7951 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
7952 else
7953 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
7954
7955 return 0;
7956 }
7957
7958 #ifdef CONFIG_IPW2100_MONITOR
7959 static int ipw2100_wx_set_crc_check(struct net_device *dev,
7960 struct iw_request_info *info,
7961 union iwreq_data *wrqu, char *extra)
7962 {
7963 struct ipw2100_priv *priv = libipw_priv(dev);
7964 int err, mode = *(int *)extra;
7965
7966 mutex_lock(&priv->action_mutex);
7967 if (!(priv->status & STATUS_INITIALIZED)) {
7968 err = -EIO;
7969 goto done;
7970 }
7971
7972 if (mode == 1)
7973 priv->config |= CFG_CRC_CHECK;
7974 else if (mode == 0)
7975 priv->config &= ~CFG_CRC_CHECK;
7976 else {
7977 err = -EINVAL;
7978 goto done;
7979 }
7980 err = 0;
7981
7982 done:
7983 mutex_unlock(&priv->action_mutex);
7984 return err;
7985 }
7986
7987 static int ipw2100_wx_get_crc_check(struct net_device *dev,
7988 struct iw_request_info *info,
7989 union iwreq_data *wrqu, char *extra)
7990 {
7991 /*
7992 * This can be called at any time. No action lock required
7993 */
7994
7995 struct ipw2100_priv *priv = libipw_priv(dev);
7996
7997 if (priv->config & CFG_CRC_CHECK)
7998 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
7999 else
8000 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
8001
8002 return 0;
8003 }
8004 #endif /* CONFIG_IPW2100_MONITOR */
8005
8006 static iw_handler ipw2100_wx_handlers[] = {
8007 IW_HANDLER(SIOCGIWNAME, ipw2100_wx_get_name),
8008 IW_HANDLER(SIOCSIWFREQ, ipw2100_wx_set_freq),
8009 IW_HANDLER(SIOCGIWFREQ, ipw2100_wx_get_freq),
8010 IW_HANDLER(SIOCSIWMODE, ipw2100_wx_set_mode),
8011 IW_HANDLER(SIOCGIWMODE, ipw2100_wx_get_mode),
8012 IW_HANDLER(SIOCGIWRANGE, ipw2100_wx_get_range),
8013 IW_HANDLER(SIOCSIWAP, ipw2100_wx_set_wap),
8014 IW_HANDLER(SIOCGIWAP, ipw2100_wx_get_wap),
8015 IW_HANDLER(SIOCSIWMLME, ipw2100_wx_set_mlme),
8016 IW_HANDLER(SIOCSIWSCAN, ipw2100_wx_set_scan),
8017 IW_HANDLER(SIOCGIWSCAN, ipw2100_wx_get_scan),
8018 IW_HANDLER(SIOCSIWESSID, ipw2100_wx_set_essid),
8019 IW_HANDLER(SIOCGIWESSID, ipw2100_wx_get_essid),
8020 IW_HANDLER(SIOCSIWNICKN, ipw2100_wx_set_nick),
8021 IW_HANDLER(SIOCGIWNICKN, ipw2100_wx_get_nick),
8022 IW_HANDLER(SIOCSIWRATE, ipw2100_wx_set_rate),
8023 IW_HANDLER(SIOCGIWRATE, ipw2100_wx_get_rate),
8024 IW_HANDLER(SIOCSIWRTS, ipw2100_wx_set_rts),
8025 IW_HANDLER(SIOCGIWRTS, ipw2100_wx_get_rts),
8026 IW_HANDLER(SIOCSIWFRAG, ipw2100_wx_set_frag),
8027 IW_HANDLER(SIOCGIWFRAG, ipw2100_wx_get_frag),
8028 IW_HANDLER(SIOCSIWTXPOW, ipw2100_wx_set_txpow),
8029 IW_HANDLER(SIOCGIWTXPOW, ipw2100_wx_get_txpow),
8030 IW_HANDLER(SIOCSIWRETRY, ipw2100_wx_set_retry),
8031 IW_HANDLER(SIOCGIWRETRY, ipw2100_wx_get_retry),
8032 IW_HANDLER(SIOCSIWENCODE, ipw2100_wx_set_encode),
8033 IW_HANDLER(SIOCGIWENCODE, ipw2100_wx_get_encode),
8034 IW_HANDLER(SIOCSIWPOWER, ipw2100_wx_set_power),
8035 IW_HANDLER(SIOCGIWPOWER, ipw2100_wx_get_power),
8036 IW_HANDLER(SIOCSIWGENIE, ipw2100_wx_set_genie),
8037 IW_HANDLER(SIOCGIWGENIE, ipw2100_wx_get_genie),
8038 IW_HANDLER(SIOCSIWAUTH, ipw2100_wx_set_auth),
8039 IW_HANDLER(SIOCGIWAUTH, ipw2100_wx_get_auth),
8040 IW_HANDLER(SIOCSIWENCODEEXT, ipw2100_wx_set_encodeext),
8041 IW_HANDLER(SIOCGIWENCODEEXT, ipw2100_wx_get_encodeext),
8042 };
8043
8044 #define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV
8045 #define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1
8046 #define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2
8047 #define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3
8048 #define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4
8049 #define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5
8050 #define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6
8051 #define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7
8052
8053 static const struct iw_priv_args ipw2100_private_args[] = {
8054
8055 #ifdef CONFIG_IPW2100_MONITOR
8056 {
8057 IPW2100_PRIV_SET_MONITOR,
8058 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8059 {
8060 IPW2100_PRIV_RESET,
8061 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8062 #endif /* CONFIG_IPW2100_MONITOR */
8063
8064 {
8065 IPW2100_PRIV_SET_POWER,
8066 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8067 {
8068 IPW2100_PRIV_GET_POWER,
8069 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8070 "get_power"},
8071 {
8072 IPW2100_PRIV_SET_LONGPREAMBLE,
8073 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8074 {
8075 IPW2100_PRIV_GET_LONGPREAMBLE,
8076 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8077 #ifdef CONFIG_IPW2100_MONITOR
8078 {
8079 IPW2100_PRIV_SET_CRC_CHECK,
8080 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8081 {
8082 IPW2100_PRIV_GET_CRC_CHECK,
8083 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8084 #endif /* CONFIG_IPW2100_MONITOR */
8085 };
8086
8087 static iw_handler ipw2100_private_handler[] = {
8088 #ifdef CONFIG_IPW2100_MONITOR
8089 ipw2100_wx_set_promisc,
8090 ipw2100_wx_reset,
8091 #else /* CONFIG_IPW2100_MONITOR */
8092 NULL,
8093 NULL,
8094 #endif /* CONFIG_IPW2100_MONITOR */
8095 ipw2100_wx_set_powermode,
8096 ipw2100_wx_get_powermode,
8097 ipw2100_wx_set_preamble,
8098 ipw2100_wx_get_preamble,
8099 #ifdef CONFIG_IPW2100_MONITOR
8100 ipw2100_wx_set_crc_check,
8101 ipw2100_wx_get_crc_check,
8102 #else /* CONFIG_IPW2100_MONITOR */
8103 NULL,
8104 NULL,
8105 #endif /* CONFIG_IPW2100_MONITOR */
8106 };
8107
8108 /*
8109 * Get wireless statistics.
8110 * Called by /proc/net/wireless
8111 * Also called by SIOCGIWSTATS
8112 */
8113 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8114 {
8115 enum {
8116 POOR = 30,
8117 FAIR = 60,
8118 GOOD = 80,
8119 VERY_GOOD = 90,
8120 EXCELLENT = 95,
8121 PERFECT = 100
8122 };
8123 int rssi_qual;
8124 int tx_qual;
8125 int beacon_qual;
8126 int quality;
8127
8128 struct ipw2100_priv *priv = libipw_priv(dev);
8129 struct iw_statistics *wstats;
8130 u32 rssi, tx_retries, missed_beacons, tx_failures;
8131 u32 ord_len = sizeof(u32);
8132
8133 if (!priv)
8134 return (struct iw_statistics *)NULL;
8135
8136 wstats = &priv->wstats;
8137
8138 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8139 * ipw2100_wx_wireless_stats seems to be called before fw is
8140 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
8141 * and associated; if not associcated, the values are all meaningless
8142 * anyway, so set them all to NULL and INVALID */
8143 if (!(priv->status & STATUS_ASSOCIATED)) {
8144 wstats->miss.beacon = 0;
8145 wstats->discard.retries = 0;
8146 wstats->qual.qual = 0;
8147 wstats->qual.level = 0;
8148 wstats->qual.noise = 0;
8149 wstats->qual.updated = 7;
8150 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8151 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8152 return wstats;
8153 }
8154
8155 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8156 &missed_beacons, &ord_len))
8157 goto fail_get_ordinal;
8158
8159 /* If we don't have a connection the quality and level is 0 */
8160 if (!(priv->status & STATUS_ASSOCIATED)) {
8161 wstats->qual.qual = 0;
8162 wstats->qual.level = 0;
8163 } else {
8164 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8165 &rssi, &ord_len))
8166 goto fail_get_ordinal;
8167 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8168 if (rssi < 10)
8169 rssi_qual = rssi * POOR / 10;
8170 else if (rssi < 15)
8171 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8172 else if (rssi < 20)
8173 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8174 else if (rssi < 30)
8175 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8176 10 + GOOD;
8177 else
8178 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8179 10 + VERY_GOOD;
8180
8181 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8182 &tx_retries, &ord_len))
8183 goto fail_get_ordinal;
8184
8185 if (tx_retries > 75)
8186 tx_qual = (90 - tx_retries) * POOR / 15;
8187 else if (tx_retries > 70)
8188 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8189 else if (tx_retries > 65)
8190 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8191 else if (tx_retries > 50)
8192 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8193 15 + GOOD;
8194 else
8195 tx_qual = (50 - tx_retries) *
8196 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8197
8198 if (missed_beacons > 50)
8199 beacon_qual = (60 - missed_beacons) * POOR / 10;
8200 else if (missed_beacons > 40)
8201 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8202 10 + POOR;
8203 else if (missed_beacons > 32)
8204 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8205 18 + FAIR;
8206 else if (missed_beacons > 20)
8207 beacon_qual = (32 - missed_beacons) *
8208 (VERY_GOOD - GOOD) / 20 + GOOD;
8209 else
8210 beacon_qual = (20 - missed_beacons) *
8211 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8212
8213 quality = min(tx_qual, rssi_qual);
8214 quality = min(beacon_qual, quality);
8215
8216 #ifdef CONFIG_IPW2100_DEBUG
8217 if (beacon_qual == quality)
8218 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8219 else if (tx_qual == quality)
8220 IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8221 else if (quality != 100)
8222 IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8223 else
8224 IPW_DEBUG_WX("Quality not clamped.\n");
8225 #endif
8226
8227 wstats->qual.qual = quality;
8228 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8229 }
8230
8231 wstats->qual.noise = 0;
8232 wstats->qual.updated = 7;
8233 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8234
8235 /* FIXME: this is percent and not a # */
8236 wstats->miss.beacon = missed_beacons;
8237
8238 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8239 &tx_failures, &ord_len))
8240 goto fail_get_ordinal;
8241 wstats->discard.retries = tx_failures;
8242
8243 return wstats;
8244
8245 fail_get_ordinal:
8246 IPW_DEBUG_WX("failed querying ordinals.\n");
8247
8248 return (struct iw_statistics *)NULL;
8249 }
8250
8251 static const struct iw_handler_def ipw2100_wx_handler_def = {
8252 .standard = ipw2100_wx_handlers,
8253 .num_standard = ARRAY_SIZE(ipw2100_wx_handlers),
8254 .num_private = ARRAY_SIZE(ipw2100_private_handler),
8255 .num_private_args = ARRAY_SIZE(ipw2100_private_args),
8256 .private = (iw_handler *) ipw2100_private_handler,
8257 .private_args = (struct iw_priv_args *)ipw2100_private_args,
8258 .get_wireless_stats = ipw2100_wx_wireless_stats,
8259 };
8260
8261 static void ipw2100_wx_event_work(struct work_struct *work)
8262 {
8263 struct ipw2100_priv *priv =
8264 container_of(work, struct ipw2100_priv, wx_event_work.work);
8265 union iwreq_data wrqu;
8266 unsigned int len = ETH_ALEN;
8267
8268 if (priv->status & STATUS_STOPPING)
8269 return;
8270
8271 mutex_lock(&priv->action_mutex);
8272
8273 IPW_DEBUG_WX("enter\n");
8274
8275 mutex_unlock(&priv->action_mutex);
8276
8277 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8278
8279 /* Fetch BSSID from the hardware */
8280 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8281 priv->status & STATUS_RF_KILL_MASK ||
8282 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8283 &priv->bssid, &len)) {
8284 eth_zero_addr(wrqu.ap_addr.sa_data);
8285 } else {
8286 /* We now have the BSSID, so can finish setting to the full
8287 * associated state */
8288 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8289 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8290 priv->status &= ~STATUS_ASSOCIATING;
8291 priv->status |= STATUS_ASSOCIATED;
8292 netif_carrier_on(priv->net_dev);
8293 netif_wake_queue(priv->net_dev);
8294 }
8295
8296 if (!(priv->status & STATUS_ASSOCIATED)) {
8297 IPW_DEBUG_WX("Configuring ESSID\n");
8298 mutex_lock(&priv->action_mutex);
8299 /* This is a disassociation event, so kick the firmware to
8300 * look for another AP */
8301 if (priv->config & CFG_STATIC_ESSID)
8302 ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8303 0);
8304 else
8305 ipw2100_set_essid(priv, NULL, 0, 0);
8306 mutex_unlock(&priv->action_mutex);
8307 }
8308
8309 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8310 }
8311
8312 #define IPW2100_FW_MAJOR_VERSION 1
8313 #define IPW2100_FW_MINOR_VERSION 3
8314
8315 #define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8316 #define IPW2100_FW_MAJOR(x) (x & 0xff)
8317
8318 #define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8319 IPW2100_FW_MAJOR_VERSION)
8320
8321 #define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8322 "." __stringify(IPW2100_FW_MINOR_VERSION)
8323
8324 #define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8325
8326 /*
8327
8328 BINARY FIRMWARE HEADER FORMAT
8329
8330 offset length desc
8331 0 2 version
8332 2 2 mode == 0:BSS,1:IBSS,2:MONITOR
8333 4 4 fw_len
8334 8 4 uc_len
8335 C fw_len firmware data
8336 12 + fw_len uc_len microcode data
8337
8338 */
8339
8340 struct ipw2100_fw_header {
8341 short version;
8342 short mode;
8343 unsigned int fw_size;
8344 unsigned int uc_size;
8345 } __packed;
8346
8347 static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8348 {
8349 struct ipw2100_fw_header *h =
8350 (struct ipw2100_fw_header *)fw->fw_entry->data;
8351
8352 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8353 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8354 "(detected version id of %u). "
8355 "See Documentation/networking/device_drivers/intel/ipw2100.txt\n",
8356 h->version);
8357 return 1;
8358 }
8359
8360 fw->version = h->version;
8361 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8362 fw->fw.size = h->fw_size;
8363 fw->uc.data = fw->fw.data + h->fw_size;
8364 fw->uc.size = h->uc_size;
8365
8366 return 0;
8367 }
8368
8369 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8370 struct ipw2100_fw *fw)
8371 {
8372 char *fw_name;
8373 int rc;
8374
8375 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8376 priv->net_dev->name);
8377
8378 switch (priv->ieee->iw_mode) {
8379 case IW_MODE_ADHOC:
8380 fw_name = IPW2100_FW_NAME("-i");
8381 break;
8382 #ifdef CONFIG_IPW2100_MONITOR
8383 case IW_MODE_MONITOR:
8384 fw_name = IPW2100_FW_NAME("-p");
8385 break;
8386 #endif
8387 case IW_MODE_INFRA:
8388 default:
8389 fw_name = IPW2100_FW_NAME("");
8390 break;
8391 }
8392
8393 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8394
8395 if (rc < 0) {
8396 printk(KERN_ERR DRV_NAME ": "
8397 "%s: Firmware '%s' not available or load failed.\n",
8398 priv->net_dev->name, fw_name);
8399 return rc;
8400 }
8401 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8402 fw->fw_entry->size);
8403
8404 ipw2100_mod_firmware_load(fw);
8405
8406 return 0;
8407 }
8408
8409 MODULE_FIRMWARE(IPW2100_FW_NAME("-i"));
8410 #ifdef CONFIG_IPW2100_MONITOR
8411 MODULE_FIRMWARE(IPW2100_FW_NAME("-p"));
8412 #endif
8413 MODULE_FIRMWARE(IPW2100_FW_NAME(""));
8414
8415 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8416 struct ipw2100_fw *fw)
8417 {
8418 fw->version = 0;
8419 release_firmware(fw->fw_entry);
8420 fw->fw_entry = NULL;
8421 }
8422
8423 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8424 size_t max)
8425 {
8426 char ver[MAX_FW_VERSION_LEN];
8427 u32 len = MAX_FW_VERSION_LEN;
8428 u32 tmp;
8429 int i;
8430 /* firmware version is an ascii string (max len of 14) */
8431 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8432 return -EIO;
8433 tmp = max;
8434 if (len >= max)
8435 len = max - 1;
8436 for (i = 0; i < len; i++)
8437 buf[i] = ver[i];
8438 buf[i] = '\0';
8439 return tmp;
8440 }
8441
8442 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8443 size_t max)
8444 {
8445 u32 ver;
8446 u32 len = sizeof(ver);
8447 /* microcode version is a 32 bit integer */
8448 if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8449 return -EIO;
8450 return snprintf(buf, max, "%08X", ver);
8451 }
8452
8453 /*
8454 * On exit, the firmware will have been freed from the fw list
8455 */
8456 static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8457 {
8458 /* firmware is constructed of N contiguous entries, each entry is
8459 * structured as:
8460 *
8461 * offset sie desc
8462 * 0 4 address to write to
8463 * 4 2 length of data run
8464 * 6 length data
8465 */
8466 unsigned int addr;
8467 unsigned short len;
8468
8469 const unsigned char *firmware_data = fw->fw.data;
8470 unsigned int firmware_data_left = fw->fw.size;
8471
8472 while (firmware_data_left > 0) {
8473 addr = *(u32 *) (firmware_data);
8474 firmware_data += 4;
8475 firmware_data_left -= 4;
8476
8477 len = *(u16 *) (firmware_data);
8478 firmware_data += 2;
8479 firmware_data_left -= 2;
8480
8481 if (len > 32) {
8482 printk(KERN_ERR DRV_NAME ": "
8483 "Invalid firmware run-length of %d bytes\n",
8484 len);
8485 return -EINVAL;
8486 }
8487
8488 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8489 firmware_data += len;
8490 firmware_data_left -= len;
8491 }
8492
8493 return 0;
8494 }
8495
8496 struct symbol_alive_response {
8497 u8 cmd_id;
8498 u8 seq_num;
8499 u8 ucode_rev;
8500 u8 eeprom_valid;
8501 u16 valid_flags;
8502 u8 IEEE_addr[6];
8503 u16 flags;
8504 u16 pcb_rev;
8505 u16 clock_settle_time; // 1us LSB
8506 u16 powerup_settle_time; // 1us LSB
8507 u16 hop_settle_time; // 1us LSB
8508 u8 date[3]; // month, day, year
8509 u8 time[2]; // hours, minutes
8510 u8 ucode_valid;
8511 };
8512
8513 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8514 struct ipw2100_fw *fw)
8515 {
8516 struct net_device *dev = priv->net_dev;
8517 const unsigned char *microcode_data = fw->uc.data;
8518 unsigned int microcode_data_left = fw->uc.size;
8519 void __iomem *reg = priv->ioaddr;
8520
8521 struct symbol_alive_response response;
8522 int i, j;
8523 u8 data;
8524
8525 /* Symbol control */
8526 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8527 readl(reg);
8528 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8529 readl(reg);
8530
8531 /* HW config */
8532 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8533 readl(reg);
8534 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8535 readl(reg);
8536
8537 /* EN_CS_ACCESS bit to reset control store pointer */
8538 write_nic_byte(dev, 0x210000, 0x40);
8539 readl(reg);
8540 write_nic_byte(dev, 0x210000, 0x0);
8541 readl(reg);
8542 write_nic_byte(dev, 0x210000, 0x40);
8543 readl(reg);
8544
8545 /* copy microcode from buffer into Symbol */
8546
8547 while (microcode_data_left > 0) {
8548 write_nic_byte(dev, 0x210010, *microcode_data++);
8549 write_nic_byte(dev, 0x210010, *microcode_data++);
8550 microcode_data_left -= 2;
8551 }
8552
8553 /* EN_CS_ACCESS bit to reset the control store pointer */
8554 write_nic_byte(dev, 0x210000, 0x0);
8555 readl(reg);
8556
8557 /* Enable System (Reg 0)
8558 * first enable causes garbage in RX FIFO */
8559 write_nic_byte(dev, 0x210000, 0x0);
8560 readl(reg);
8561 write_nic_byte(dev, 0x210000, 0x80);
8562 readl(reg);
8563
8564 /* Reset External Baseband Reg */
8565 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8566 readl(reg);
8567 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8568 readl(reg);
8569
8570 /* HW Config (Reg 5) */
8571 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8572 readl(reg);
8573 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8574 readl(reg);
8575
8576 /* Enable System (Reg 0)
8577 * second enable should be OK */
8578 write_nic_byte(dev, 0x210000, 0x00); // clear enable system
8579 readl(reg);
8580 write_nic_byte(dev, 0x210000, 0x80); // set enable system
8581
8582 /* check Symbol is enabled - upped this from 5 as it wasn't always
8583 * catching the update */
8584 for (i = 0; i < 10; i++) {
8585 udelay(10);
8586
8587 /* check Dino is enabled bit */
8588 read_nic_byte(dev, 0x210000, &data);
8589 if (data & 0x1)
8590 break;
8591 }
8592
8593 if (i == 10) {
8594 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8595 dev->name);
8596 return -EIO;
8597 }
8598
8599 /* Get Symbol alive response */
8600 for (i = 0; i < 30; i++) {
8601 /* Read alive response structure */
8602 for (j = 0;
8603 j < (sizeof(struct symbol_alive_response) >> 1); j++)
8604 read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8605
8606 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8607 break;
8608 udelay(10);
8609 }
8610
8611 if (i == 30) {
8612 printk(KERN_ERR DRV_NAME
8613 ": %s: No response from Symbol - hw not alive\n",
8614 dev->name);
8615 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8616 return -EIO;
8617 }
8618
8619 return 0;
8620 }
Linux with added FPC-III support