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xfs: add full xfs_dqblk verifier
[linux/fpc-iii.git] / drivers / net / wireless / intel / ipw2x00 / ipw2200.c
blob87a5e414c2f7d863d206a949ba0a4dba75d7ddb7
1 /******************************************************************************
2
3 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
4
5 802.11 status code portion of this file from ethereal-0.10.6:
6 Copyright 2000, Axis Communications AB
7 Ethereal - Network traffic analyzer
8 By Gerald Combs <gerald@ethereal.com>
9 Copyright 1998 Gerald Combs
10
11 This program is free software; you can redistribute it and/or modify it
12 under the terms of version 2 of the GNU General Public License as
13 published by the Free Software Foundation.
14
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 more details.
19
20 You should have received a copy of the GNU General Public License along with
21 this program; if not, write to the Free Software Foundation, Inc., 59
22 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23
24 The full GNU General Public License is included in this distribution in the
25 file called LICENSE.
26
27 Contact Information:
28 Intel Linux Wireless <ilw@linux.intel.com>
29 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30
31 ******************************************************************************/
32
33 #include <linux/sched.h>
34 #include <linux/slab.h>
35 #include <net/cfg80211-wext.h>
36 #include "ipw2200.h"
37 #include "ipw.h"
38
39
40 #ifndef KBUILD_EXTMOD
41 #define VK "k"
42 #else
43 #define VK
44 #endif
45
46 #ifdef CONFIG_IPW2200_DEBUG
47 #define VD "d"
48 #else
49 #define VD
50 #endif
51
52 #ifdef CONFIG_IPW2200_MONITOR
53 #define VM "m"
54 #else
55 #define VM
56 #endif
57
58 #ifdef CONFIG_IPW2200_PROMISCUOUS
59 #define VP "p"
60 #else
61 #define VP
62 #endif
63
64 #ifdef CONFIG_IPW2200_RADIOTAP
65 #define VR "r"
66 #else
67 #define VR
68 #endif
69
70 #ifdef CONFIG_IPW2200_QOS
71 #define VQ "q"
72 #else
73 #define VQ
74 #endif
75
76 #define IPW2200_VERSION "1.2.2" VK VD VM VP VR VQ
77 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver"
78 #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
79 #define DRV_VERSION IPW2200_VERSION
80
81 #define ETH_P_80211_STATS (ETH_P_80211_RAW + 1)
82
83 MODULE_DESCRIPTION(DRV_DESCRIPTION);
84 MODULE_VERSION(DRV_VERSION);
85 MODULE_AUTHOR(DRV_COPYRIGHT);
86 MODULE_LICENSE("GPL");
87 MODULE_FIRMWARE("ipw2200-ibss.fw");
88 #ifdef CONFIG_IPW2200_MONITOR
89 MODULE_FIRMWARE("ipw2200-sniffer.fw");
90 #endif
91 MODULE_FIRMWARE("ipw2200-bss.fw");
92
93 static int cmdlog = 0;
94 static int debug = 0;
95 static int default_channel = 0;
96 static int network_mode = 0;
97
98 static u32 ipw_debug_level;
99 static int associate;
100 static int auto_create = 1;
101 static int led_support = 1;
102 static int disable = 0;
103 static int bt_coexist = 0;
104 static int hwcrypto = 0;
105 static int roaming = 1;
106 static const char ipw_modes[] = {
107 'a', 'b', 'g', '?'
108 };
109 static int antenna = CFG_SYS_ANTENNA_BOTH;
110
111 #ifdef CONFIG_IPW2200_PROMISCUOUS
112 static int rtap_iface = 0; /* def: 0 -- do not create rtap interface */
113 #endif
114
115 static struct ieee80211_rate ipw2200_rates[] = {
116 { .bitrate = 10 },
117 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
118 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
119 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
120 { .bitrate = 60 },
121 { .bitrate = 90 },
122 { .bitrate = 120 },
123 { .bitrate = 180 },
124 { .bitrate = 240 },
125 { .bitrate = 360 },
126 { .bitrate = 480 },
127 { .bitrate = 540 }
128 };
129
130 #define ipw2200_a_rates (ipw2200_rates + 4)
131 #define ipw2200_num_a_rates 8
132 #define ipw2200_bg_rates (ipw2200_rates + 0)
133 #define ipw2200_num_bg_rates 12
134
135 /* Ugly macro to convert literal channel numbers into their mhz equivalents
136 * There are certianly some conditions that will break this (like feeding it '30')
137 * but they shouldn't arise since nothing talks on channel 30. */
138 #define ieee80211chan2mhz(x) \
139 (((x) <= 14) ? \
140 (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \
141 ((x) + 1000) * 5)
142
143 #ifdef CONFIG_IPW2200_QOS
144 static int qos_enable = 0;
145 static int qos_burst_enable = 0;
146 static int qos_no_ack_mask = 0;
147 static int burst_duration_CCK = 0;
148 static int burst_duration_OFDM = 0;
149
150 static struct libipw_qos_parameters def_qos_parameters_OFDM = {
151 {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM,
152 QOS_TX3_CW_MIN_OFDM},
153 {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM,
154 QOS_TX3_CW_MAX_OFDM},
155 {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
156 {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
157 {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM,
158 QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM}
159 };
160
161 static struct libipw_qos_parameters def_qos_parameters_CCK = {
162 {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK,
163 QOS_TX3_CW_MIN_CCK},
164 {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK,
165 QOS_TX3_CW_MAX_CCK},
166 {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
167 {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
168 {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK,
169 QOS_TX3_TXOP_LIMIT_CCK}
170 };
171
172 static struct libipw_qos_parameters def_parameters_OFDM = {
173 {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM,
174 DEF_TX3_CW_MIN_OFDM},
175 {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM,
176 DEF_TX3_CW_MAX_OFDM},
177 {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
178 {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
179 {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM,
180 DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM}
181 };
182
183 static struct libipw_qos_parameters def_parameters_CCK = {
184 {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK,
185 DEF_TX3_CW_MIN_CCK},
186 {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK,
187 DEF_TX3_CW_MAX_CCK},
188 {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
189 {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
190 {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK,
191 DEF_TX3_TXOP_LIMIT_CCK}
192 };
193
194 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
195
196 static int from_priority_to_tx_queue[] = {
197 IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1,
198 IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4
199 };
200
201 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv);
202
203 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters
204 *qos_param);
205 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element
206 *qos_param);
207 #endif /* CONFIG_IPW2200_QOS */
208
209 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev);
210 static void ipw_remove_current_network(struct ipw_priv *priv);
211 static void ipw_rx(struct ipw_priv *priv);
212 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
213 struct clx2_tx_queue *txq, int qindex);
214 static int ipw_queue_reset(struct ipw_priv *priv);
215
216 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
217 int len, int sync);
218
219 static void ipw_tx_queue_free(struct ipw_priv *);
220
221 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *);
222 static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *);
223 static void ipw_rx_queue_replenish(void *);
224 static int ipw_up(struct ipw_priv *);
225 static void ipw_bg_up(struct work_struct *work);
226 static void ipw_down(struct ipw_priv *);
227 static void ipw_bg_down(struct work_struct *work);
228 static int ipw_config(struct ipw_priv *);
229 static int init_supported_rates(struct ipw_priv *priv,
230 struct ipw_supported_rates *prates);
231 static void ipw_set_hwcrypto_keys(struct ipw_priv *);
232 static void ipw_send_wep_keys(struct ipw_priv *, int);
233
234 static int snprint_line(char *buf, size_t count,
235 const u8 * data, u32 len, u32 ofs)
236 {
237 int out, i, j, l;
238 char c;
239
240 out = snprintf(buf, count, "%08X", ofs);
241
242 for (l = 0, i = 0; i < 2; i++) {
243 out += snprintf(buf + out, count - out, " ");
244 for (j = 0; j < 8 && l < len; j++, l++)
245 out += snprintf(buf + out, count - out, "%02X ",
246 data[(i * 8 + j)]);
247 for (; j < 8; j++)
248 out += snprintf(buf + out, count - out, " ");
249 }
250
251 out += snprintf(buf + out, count - out, " ");
252 for (l = 0, i = 0; i < 2; i++) {
253 out += snprintf(buf + out, count - out, " ");
254 for (j = 0; j < 8 && l < len; j++, l++) {
255 c = data[(i * 8 + j)];
256 if (!isascii(c) || !isprint(c))
257 c = '.';
258
259 out += snprintf(buf + out, count - out, "%c", c);
260 }
261
262 for (; j < 8; j++)
263 out += snprintf(buf + out, count - out, " ");
264 }
265
266 return out;
267 }
268
269 static void printk_buf(int level, const u8 * data, u32 len)
270 {
271 char line[81];
272 u32 ofs = 0;
273 if (!(ipw_debug_level & level))
274 return;
275
276 while (len) {
277 snprint_line(line, sizeof(line), &data[ofs],
278 min(len, 16U), ofs);
279 printk(KERN_DEBUG "%s\n", line);
280 ofs += 16;
281 len -= min(len, 16U);
282 }
283 }
284
285 static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len)
286 {
287 size_t out = size;
288 u32 ofs = 0;
289 int total = 0;
290
291 while (size && len) {
292 out = snprint_line(output, size, &data[ofs],
293 min_t(size_t, len, 16U), ofs);
294
295 ofs += 16;
296 output += out;
297 size -= out;
298 len -= min_t(size_t, len, 16U);
299 total += out;
300 }
301 return total;
302 }
303
304 /* alias for 32-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
305 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg);
306 #define ipw_read_reg32(a, b) _ipw_read_reg32(a, b)
307
308 /* alias for 8-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
309 static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg);
310 #define ipw_read_reg8(a, b) _ipw_read_reg8(a, b)
311
312 /* 8-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
313 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value);
314 static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c)
315 {
316 IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__,
317 __LINE__, (u32) (b), (u32) (c));
318 _ipw_write_reg8(a, b, c);
319 }
320
321 /* 16-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
322 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value);
323 static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c)
324 {
325 IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__,
326 __LINE__, (u32) (b), (u32) (c));
327 _ipw_write_reg16(a, b, c);
328 }
329
330 /* 32-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
331 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value);
332 static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c)
333 {
334 IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__,
335 __LINE__, (u32) (b), (u32) (c));
336 _ipw_write_reg32(a, b, c);
337 }
338
339 /* 8-bit direct write (low 4K) */
340 static inline void _ipw_write8(struct ipw_priv *ipw, unsigned long ofs,
341 u8 val)
342 {
343 writeb(val, ipw->hw_base + ofs);
344 }
345
346 /* 8-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
347 #define ipw_write8(ipw, ofs, val) do { \
348 IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, \
349 __LINE__, (u32)(ofs), (u32)(val)); \
350 _ipw_write8(ipw, ofs, val); \
351 } while (0)
352
353 /* 16-bit direct write (low 4K) */
354 static inline void _ipw_write16(struct ipw_priv *ipw, unsigned long ofs,
355 u16 val)
356 {
357 writew(val, ipw->hw_base + ofs);
358 }
359
360 /* 16-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
361 #define ipw_write16(ipw, ofs, val) do { \
362 IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, \
363 __LINE__, (u32)(ofs), (u32)(val)); \
364 _ipw_write16(ipw, ofs, val); \
365 } while (0)
366
367 /* 32-bit direct write (low 4K) */
368 static inline void _ipw_write32(struct ipw_priv *ipw, unsigned long ofs,
369 u32 val)
370 {
371 writel(val, ipw->hw_base + ofs);
372 }
373
374 /* 32-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
375 #define ipw_write32(ipw, ofs, val) do { \
376 IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, \
377 __LINE__, (u32)(ofs), (u32)(val)); \
378 _ipw_write32(ipw, ofs, val); \
379 } while (0)
380
381 /* 8-bit direct read (low 4K) */
382 static inline u8 _ipw_read8(struct ipw_priv *ipw, unsigned long ofs)
383 {
384 return readb(ipw->hw_base + ofs);
385 }
386
387 /* alias to 8-bit direct read (low 4K of SRAM/regs), with debug wrapper */
388 #define ipw_read8(ipw, ofs) ({ \
389 IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", __FILE__, __LINE__, \
390 (u32)(ofs)); \
391 _ipw_read8(ipw, ofs); \
392 })
393
394 /* 16-bit direct read (low 4K) */
395 static inline u16 _ipw_read16(struct ipw_priv *ipw, unsigned long ofs)
396 {
397 return readw(ipw->hw_base + ofs);
398 }
399
400 /* alias to 16-bit direct read (low 4K of SRAM/regs), with debug wrapper */
401 #define ipw_read16(ipw, ofs) ({ \
402 IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", __FILE__, __LINE__, \
403 (u32)(ofs)); \
404 _ipw_read16(ipw, ofs); \
405 })
406
407 /* 32-bit direct read (low 4K) */
408 static inline u32 _ipw_read32(struct ipw_priv *ipw, unsigned long ofs)
409 {
410 return readl(ipw->hw_base + ofs);
411 }
412
413 /* alias to 32-bit direct read (low 4K of SRAM/regs), with debug wrapper */
414 #define ipw_read32(ipw, ofs) ({ \
415 IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \
416 (u32)(ofs)); \
417 _ipw_read32(ipw, ofs); \
418 })
419
420 static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int);
421 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
422 #define ipw_read_indirect(a, b, c, d) ({ \
423 IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %u bytes\n", __FILE__, \
424 __LINE__, (u32)(b), (u32)(d)); \
425 _ipw_read_indirect(a, b, c, d); \
426 })
427
428 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
429 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data,
430 int num);
431 #define ipw_write_indirect(a, b, c, d) do { \
432 IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %u bytes\n", __FILE__, \
433 __LINE__, (u32)(b), (u32)(d)); \
434 _ipw_write_indirect(a, b, c, d); \
435 } while (0)
436
437 /* 32-bit indirect write (above 4K) */
438 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value)
439 {
440 IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value);
441 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
442 _ipw_write32(priv, IPW_INDIRECT_DATA, value);
443 }
444
445 /* 8-bit indirect write (above 4K) */
446 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value)
447 {
448 u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */
449 u32 dif_len = reg - aligned_addr;
450
451 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
452 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
453 _ipw_write8(priv, IPW_INDIRECT_DATA + dif_len, value);
454 }
455
456 /* 16-bit indirect write (above 4K) */
457 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value)
458 {
459 u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */
460 u32 dif_len = (reg - aligned_addr) & (~0x1ul);
461
462 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
463 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
464 _ipw_write16(priv, IPW_INDIRECT_DATA + dif_len, value);
465 }
466
467 /* 8-bit indirect read (above 4K) */
468 static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg)
469 {
470 u32 word;
471 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK);
472 IPW_DEBUG_IO(" reg = 0x%8X :\n", reg);
473 word = _ipw_read32(priv, IPW_INDIRECT_DATA);
474 return (word >> ((reg & 0x3) * 8)) & 0xff;
475 }
476
477 /* 32-bit indirect read (above 4K) */
478 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg)
479 {
480 u32 value;
481
482 IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg);
483
484 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
485 value = _ipw_read32(priv, IPW_INDIRECT_DATA);
486 IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x\n", reg, value);
487 return value;
488 }
489
490 /* General purpose, no alignment requirement, iterative (multi-byte) read, */
491 /* for area above 1st 4K of SRAM/reg space */
492 static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
493 int num)
494 {
495 u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */
496 u32 dif_len = addr - aligned_addr;
497 u32 i;
498
499 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
500
501 if (num <= 0) {
502 return;
503 }
504
505 /* Read the first dword (or portion) byte by byte */
506 if (unlikely(dif_len)) {
507 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
508 /* Start reading at aligned_addr + dif_len */
509 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--)
510 *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i);
511 aligned_addr += 4;
512 }
513
514 /* Read all of the middle dwords as dwords, with auto-increment */
515 _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
516 for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
517 *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA);
518
519 /* Read the last dword (or portion) byte by byte */
520 if (unlikely(num)) {
521 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
522 for (i = 0; num > 0; i++, num--)
523 *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i);
524 }
525 }
526
527 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
528 /* for area above 1st 4K of SRAM/reg space */
529 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
530 int num)
531 {
532 u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */
533 u32 dif_len = addr - aligned_addr;
534 u32 i;
535
536 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
537
538 if (num <= 0) {
539 return;
540 }
541
542 /* Write the first dword (or portion) byte by byte */
543 if (unlikely(dif_len)) {
544 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
545 /* Start writing at aligned_addr + dif_len */
546 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++)
547 _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
548 aligned_addr += 4;
549 }
550
551 /* Write all of the middle dwords as dwords, with auto-increment */
552 _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
553 for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
554 _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf);
555
556 /* Write the last dword (or portion) byte by byte */
557 if (unlikely(num)) {
558 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
559 for (i = 0; num > 0; i++, num--, buf++)
560 _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
561 }
562 }
563
564 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
565 /* for 1st 4K of SRAM/regs space */
566 static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf,
567 int num)
568 {
569 memcpy_toio((priv->hw_base + addr), buf, num);
570 }
571
572 /* Set bit(s) in low 4K of SRAM/regs */
573 static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask)
574 {
575 ipw_write32(priv, reg, ipw_read32(priv, reg) | mask);
576 }
577
578 /* Clear bit(s) in low 4K of SRAM/regs */
579 static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
580 {
581 ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
582 }
583
584 static inline void __ipw_enable_interrupts(struct ipw_priv *priv)
585 {
586 if (priv->status & STATUS_INT_ENABLED)
587 return;
588 priv->status |= STATUS_INT_ENABLED;
589 ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL);
590 }
591
592 static inline void __ipw_disable_interrupts(struct ipw_priv *priv)
593 {
594 if (!(priv->status & STATUS_INT_ENABLED))
595 return;
596 priv->status &= ~STATUS_INT_ENABLED;
597 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
598 }
599
600 static inline void ipw_enable_interrupts(struct ipw_priv *priv)
601 {
602 unsigned long flags;
603
604 spin_lock_irqsave(&priv->irq_lock, flags);
605 __ipw_enable_interrupts(priv);
606 spin_unlock_irqrestore(&priv->irq_lock, flags);
607 }
608
609 static inline void ipw_disable_interrupts(struct ipw_priv *priv)
610 {
611 unsigned long flags;
612
613 spin_lock_irqsave(&priv->irq_lock, flags);
614 __ipw_disable_interrupts(priv);
615 spin_unlock_irqrestore(&priv->irq_lock, flags);
616 }
617
618 static char *ipw_error_desc(u32 val)
619 {
620 switch (val) {
621 case IPW_FW_ERROR_OK:
622 return "ERROR_OK";
623 case IPW_FW_ERROR_FAIL:
624 return "ERROR_FAIL";
625 case IPW_FW_ERROR_MEMORY_UNDERFLOW:
626 return "MEMORY_UNDERFLOW";
627 case IPW_FW_ERROR_MEMORY_OVERFLOW:
628 return "MEMORY_OVERFLOW";
629 case IPW_FW_ERROR_BAD_PARAM:
630 return "BAD_PARAM";
631 case IPW_FW_ERROR_BAD_CHECKSUM:
632 return "BAD_CHECKSUM";
633 case IPW_FW_ERROR_NMI_INTERRUPT:
634 return "NMI_INTERRUPT";
635 case IPW_FW_ERROR_BAD_DATABASE:
636 return "BAD_DATABASE";
637 case IPW_FW_ERROR_ALLOC_FAIL:
638 return "ALLOC_FAIL";
639 case IPW_FW_ERROR_DMA_UNDERRUN:
640 return "DMA_UNDERRUN";
641 case IPW_FW_ERROR_DMA_STATUS:
642 return "DMA_STATUS";
643 case IPW_FW_ERROR_DINO_ERROR:
644 return "DINO_ERROR";
645 case IPW_FW_ERROR_EEPROM_ERROR:
646 return "EEPROM_ERROR";
647 case IPW_FW_ERROR_SYSASSERT:
648 return "SYSASSERT";
649 case IPW_FW_ERROR_FATAL_ERROR:
650 return "FATAL_ERROR";
651 default:
652 return "UNKNOWN_ERROR";
653 }
654 }
655
656 static void ipw_dump_error_log(struct ipw_priv *priv,
657 struct ipw_fw_error *error)
658 {
659 u32 i;
660
661 if (!error) {
662 IPW_ERROR("Error allocating and capturing error log. "
663 "Nothing to dump.\n");
664 return;
665 }
666
667 IPW_ERROR("Start IPW Error Log Dump:\n");
668 IPW_ERROR("Status: 0x%08X, Config: %08X\n",
669 error->status, error->config);
670
671 for (i = 0; i < error->elem_len; i++)
672 IPW_ERROR("%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
673 ipw_error_desc(error->elem[i].desc),
674 error->elem[i].time,
675 error->elem[i].blink1,
676 error->elem[i].blink2,
677 error->elem[i].link1,
678 error->elem[i].link2, error->elem[i].data);
679 for (i = 0; i < error->log_len; i++)
680 IPW_ERROR("%i\t0x%08x\t%i\n",
681 error->log[i].time,
682 error->log[i].data, error->log[i].event);
683 }
684
685 static inline int ipw_is_init(struct ipw_priv *priv)
686 {
687 return (priv->status & STATUS_INIT) ? 1 : 0;
688 }
689
690 static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len)
691 {
692 u32 addr, field_info, field_len, field_count, total_len;
693
694 IPW_DEBUG_ORD("ordinal = %i\n", ord);
695
696 if (!priv || !val || !len) {
697 IPW_DEBUG_ORD("Invalid argument\n");
698 return -EINVAL;
699 }
700
701 /* verify device ordinal tables have been initialized */
702 if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) {
703 IPW_DEBUG_ORD("Access ordinals before initialization\n");
704 return -EINVAL;
705 }
706
707 switch (IPW_ORD_TABLE_ID_MASK & ord) {
708 case IPW_ORD_TABLE_0_MASK:
709 /*
710 * TABLE 0: Direct access to a table of 32 bit values
711 *
712 * This is a very simple table with the data directly
713 * read from the table
714 */
715
716 /* remove the table id from the ordinal */
717 ord &= IPW_ORD_TABLE_VALUE_MASK;
718
719 /* boundary check */
720 if (ord > priv->table0_len) {
721 IPW_DEBUG_ORD("ordinal value (%i) longer then "
722 "max (%i)\n", ord, priv->table0_len);
723 return -EINVAL;
724 }
725
726 /* verify we have enough room to store the value */
727 if (*len < sizeof(u32)) {
728 IPW_DEBUG_ORD("ordinal buffer length too small, "
729 "need %zd\n", sizeof(u32));
730 return -EINVAL;
731 }
732
733 IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n",
734 ord, priv->table0_addr + (ord << 2));
735
736 *len = sizeof(u32);
737 ord <<= 2;
738 *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord);
739 break;
740
741 case IPW_ORD_TABLE_1_MASK:
742 /*
743 * TABLE 1: Indirect access to a table of 32 bit values
744 *
745 * This is a fairly large table of u32 values each
746 * representing starting addr for the data (which is
747 * also a u32)
748 */
749
750 /* remove the table id from the ordinal */
751 ord &= IPW_ORD_TABLE_VALUE_MASK;
752
753 /* boundary check */
754 if (ord > priv->table1_len) {
755 IPW_DEBUG_ORD("ordinal value too long\n");
756 return -EINVAL;
757 }
758
759 /* verify we have enough room to store the value */
760 if (*len < sizeof(u32)) {
761 IPW_DEBUG_ORD("ordinal buffer length too small, "
762 "need %zd\n", sizeof(u32));
763 return -EINVAL;
764 }
765
766 *((u32 *) val) =
767 ipw_read_reg32(priv, (priv->table1_addr + (ord << 2)));
768 *len = sizeof(u32);
769 break;
770
771 case IPW_ORD_TABLE_2_MASK:
772 /*
773 * TABLE 2: Indirect access to a table of variable sized values
774 *
775 * This table consist of six values, each containing
776 * - dword containing the starting offset of the data
777 * - dword containing the lengh in the first 16bits
778 * and the count in the second 16bits
779 */
780
781 /* remove the table id from the ordinal */
782 ord &= IPW_ORD_TABLE_VALUE_MASK;
783
784 /* boundary check */
785 if (ord > priv->table2_len) {
786 IPW_DEBUG_ORD("ordinal value too long\n");
787 return -EINVAL;
788 }
789
790 /* get the address of statistic */
791 addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3));
792
793 /* get the second DW of statistics ;
794 * two 16-bit words - first is length, second is count */
795 field_info =
796 ipw_read_reg32(priv,
797 priv->table2_addr + (ord << 3) +
798 sizeof(u32));
799
800 /* get each entry length */
801 field_len = *((u16 *) & field_info);
802
803 /* get number of entries */
804 field_count = *(((u16 *) & field_info) + 1);
805
806 /* abort if not enough memory */
807 total_len = field_len * field_count;
808 if (total_len > *len) {
809 *len = total_len;
810 return -EINVAL;
811 }
812
813 *len = total_len;
814 if (!total_len)
815 return 0;
816
817 IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, "
818 "field_info = 0x%08x\n",
819 addr, total_len, field_info);
820 ipw_read_indirect(priv, addr, val, total_len);
821 break;
822
823 default:
824 IPW_DEBUG_ORD("Invalid ordinal!\n");
825 return -EINVAL;
826
827 }
828
829 return 0;
830 }
831
832 static void ipw_init_ordinals(struct ipw_priv *priv)
833 {
834 priv->table0_addr = IPW_ORDINALS_TABLE_LOWER;
835 priv->table0_len = ipw_read32(priv, priv->table0_addr);
836
837 IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n",
838 priv->table0_addr, priv->table0_len);
839
840 priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1);
841 priv->table1_len = ipw_read_reg32(priv, priv->table1_addr);
842
843 IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n",
844 priv->table1_addr, priv->table1_len);
845
846 priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2);
847 priv->table2_len = ipw_read_reg32(priv, priv->table2_addr);
848 priv->table2_len &= 0x0000ffff; /* use first two bytes */
849
850 IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n",
851 priv->table2_addr, priv->table2_len);
852
853 }
854
855 static u32 ipw_register_toggle(u32 reg)
856 {
857 reg &= ~IPW_START_STANDBY;
858 if (reg & IPW_GATE_ODMA)
859 reg &= ~IPW_GATE_ODMA;
860 if (reg & IPW_GATE_IDMA)
861 reg &= ~IPW_GATE_IDMA;
862 if (reg & IPW_GATE_ADMA)
863 reg &= ~IPW_GATE_ADMA;
864 return reg;
865 }
866
867 /*
868 * LED behavior:
869 * - On radio ON, turn on any LEDs that require to be on during start
870 * - On initialization, start unassociated blink
871 * - On association, disable unassociated blink
872 * - On disassociation, start unassociated blink
873 * - On radio OFF, turn off any LEDs started during radio on
874 *
875 */
876 #define LD_TIME_LINK_ON msecs_to_jiffies(300)
877 #define LD_TIME_LINK_OFF msecs_to_jiffies(2700)
878 #define LD_TIME_ACT_ON msecs_to_jiffies(250)
879
880 static void ipw_led_link_on(struct ipw_priv *priv)
881 {
882 unsigned long flags;
883 u32 led;
884
885 /* If configured to not use LEDs, or nic_type is 1,
886 * then we don't toggle a LINK led */
887 if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
888 return;
889
890 spin_lock_irqsave(&priv->lock, flags);
891
892 if (!(priv->status & STATUS_RF_KILL_MASK) &&
893 !(priv->status & STATUS_LED_LINK_ON)) {
894 IPW_DEBUG_LED("Link LED On\n");
895 led = ipw_read_reg32(priv, IPW_EVENT_REG);
896 led |= priv->led_association_on;
897
898 led = ipw_register_toggle(led);
899
900 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
901 ipw_write_reg32(priv, IPW_EVENT_REG, led);
902
903 priv->status |= STATUS_LED_LINK_ON;
904
905 /* If we aren't associated, schedule turning the LED off */
906 if (!(priv->status & STATUS_ASSOCIATED))
907 schedule_delayed_work(&priv->led_link_off,
908 LD_TIME_LINK_ON);
909 }
910
911 spin_unlock_irqrestore(&priv->lock, flags);
912 }
913
914 static void ipw_bg_led_link_on(struct work_struct *work)
915 {
916 struct ipw_priv *priv =
917 container_of(work, struct ipw_priv, led_link_on.work);
918 mutex_lock(&priv->mutex);
919 ipw_led_link_on(priv);
920 mutex_unlock(&priv->mutex);
921 }
922
923 static void ipw_led_link_off(struct ipw_priv *priv)
924 {
925 unsigned long flags;
926 u32 led;
927
928 /* If configured not to use LEDs, or nic type is 1,
929 * then we don't goggle the LINK led. */
930 if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
931 return;
932
933 spin_lock_irqsave(&priv->lock, flags);
934
935 if (priv->status & STATUS_LED_LINK_ON) {
936 led = ipw_read_reg32(priv, IPW_EVENT_REG);
937 led &= priv->led_association_off;
938 led = ipw_register_toggle(led);
939
940 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
941 ipw_write_reg32(priv, IPW_EVENT_REG, led);
942
943 IPW_DEBUG_LED("Link LED Off\n");
944
945 priv->status &= ~STATUS_LED_LINK_ON;
946
947 /* If we aren't associated and the radio is on, schedule
948 * turning the LED on (blink while unassociated) */
949 if (!(priv->status & STATUS_RF_KILL_MASK) &&
950 !(priv->status & STATUS_ASSOCIATED))
951 schedule_delayed_work(&priv->led_link_on,
952 LD_TIME_LINK_OFF);
953
954 }
955
956 spin_unlock_irqrestore(&priv->lock, flags);
957 }
958
959 static void ipw_bg_led_link_off(struct work_struct *work)
960 {
961 struct ipw_priv *priv =
962 container_of(work, struct ipw_priv, led_link_off.work);
963 mutex_lock(&priv->mutex);
964 ipw_led_link_off(priv);
965 mutex_unlock(&priv->mutex);
966 }
967
968 static void __ipw_led_activity_on(struct ipw_priv *priv)
969 {
970 u32 led;
971
972 if (priv->config & CFG_NO_LED)
973 return;
974
975 if (priv->status & STATUS_RF_KILL_MASK)
976 return;
977
978 if (!(priv->status & STATUS_LED_ACT_ON)) {
979 led = ipw_read_reg32(priv, IPW_EVENT_REG);
980 led |= priv->led_activity_on;
981
982 led = ipw_register_toggle(led);
983
984 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
985 ipw_write_reg32(priv, IPW_EVENT_REG, led);
986
987 IPW_DEBUG_LED("Activity LED On\n");
988
989 priv->status |= STATUS_LED_ACT_ON;
990
991 cancel_delayed_work(&priv->led_act_off);
992 schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON);
993 } else {
994 /* Reschedule LED off for full time period */
995 cancel_delayed_work(&priv->led_act_off);
996 schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON);
997 }
998 }
999
1000 #if 0
1001 void ipw_led_activity_on(struct ipw_priv *priv)
1002 {
1003 unsigned long flags;
1004 spin_lock_irqsave(&priv->lock, flags);
1005 __ipw_led_activity_on(priv);
1006 spin_unlock_irqrestore(&priv->lock, flags);
1007 }
1008 #endif /* 0 */
1009
1010 static void ipw_led_activity_off(struct ipw_priv *priv)
1011 {
1012 unsigned long flags;
1013 u32 led;
1014
1015 if (priv->config & CFG_NO_LED)
1016 return;
1017
1018 spin_lock_irqsave(&priv->lock, flags);
1019
1020 if (priv->status & STATUS_LED_ACT_ON) {
1021 led = ipw_read_reg32(priv, IPW_EVENT_REG);
1022 led &= priv->led_activity_off;
1023
1024 led = ipw_register_toggle(led);
1025
1026 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1027 ipw_write_reg32(priv, IPW_EVENT_REG, led);
1028
1029 IPW_DEBUG_LED("Activity LED Off\n");
1030
1031 priv->status &= ~STATUS_LED_ACT_ON;
1032 }
1033
1034 spin_unlock_irqrestore(&priv->lock, flags);
1035 }
1036
1037 static void ipw_bg_led_activity_off(struct work_struct *work)
1038 {
1039 struct ipw_priv *priv =
1040 container_of(work, struct ipw_priv, led_act_off.work);
1041 mutex_lock(&priv->mutex);
1042 ipw_led_activity_off(priv);
1043 mutex_unlock(&priv->mutex);
1044 }
1045
1046 static void ipw_led_band_on(struct ipw_priv *priv)
1047 {
1048 unsigned long flags;
1049 u32 led;
1050
1051 /* Only nic type 1 supports mode LEDs */
1052 if (priv->config & CFG_NO_LED ||
1053 priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network)
1054 return;
1055
1056 spin_lock_irqsave(&priv->lock, flags);
1057
1058 led = ipw_read_reg32(priv, IPW_EVENT_REG);
1059 if (priv->assoc_network->mode == IEEE_A) {
1060 led |= priv->led_ofdm_on;
1061 led &= priv->led_association_off;
1062 IPW_DEBUG_LED("Mode LED On: 802.11a\n");
1063 } else if (priv->assoc_network->mode == IEEE_G) {
1064 led |= priv->led_ofdm_on;
1065 led |= priv->led_association_on;
1066 IPW_DEBUG_LED("Mode LED On: 802.11g\n");
1067 } else {
1068 led &= priv->led_ofdm_off;
1069 led |= priv->led_association_on;
1070 IPW_DEBUG_LED("Mode LED On: 802.11b\n");
1071 }
1072
1073 led = ipw_register_toggle(led);
1074
1075 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1076 ipw_write_reg32(priv, IPW_EVENT_REG, led);
1077
1078 spin_unlock_irqrestore(&priv->lock, flags);
1079 }
1080
1081 static void ipw_led_band_off(struct ipw_priv *priv)
1082 {
1083 unsigned long flags;
1084 u32 led;
1085
1086 /* Only nic type 1 supports mode LEDs */
1087 if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1)
1088 return;
1089
1090 spin_lock_irqsave(&priv->lock, flags);
1091
1092 led = ipw_read_reg32(priv, IPW_EVENT_REG);
1093 led &= priv->led_ofdm_off;
1094 led &= priv->led_association_off;
1095
1096 led = ipw_register_toggle(led);
1097
1098 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1099 ipw_write_reg32(priv, IPW_EVENT_REG, led);
1100
1101 spin_unlock_irqrestore(&priv->lock, flags);
1102 }
1103
1104 static void ipw_led_radio_on(struct ipw_priv *priv)
1105 {
1106 ipw_led_link_on(priv);
1107 }
1108
1109 static void ipw_led_radio_off(struct ipw_priv *priv)
1110 {
1111 ipw_led_activity_off(priv);
1112 ipw_led_link_off(priv);
1113 }
1114
1115 static void ipw_led_link_up(struct ipw_priv *priv)
1116 {
1117 /* Set the Link Led on for all nic types */
1118 ipw_led_link_on(priv);
1119 }
1120
1121 static void ipw_led_link_down(struct ipw_priv *priv)
1122 {
1123 ipw_led_activity_off(priv);
1124 ipw_led_link_off(priv);
1125
1126 if (priv->status & STATUS_RF_KILL_MASK)
1127 ipw_led_radio_off(priv);
1128 }
1129
1130 static void ipw_led_init(struct ipw_priv *priv)
1131 {
1132 priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE];
1133
1134 /* Set the default PINs for the link and activity leds */
1135 priv->led_activity_on = IPW_ACTIVITY_LED;
1136 priv->led_activity_off = ~(IPW_ACTIVITY_LED);
1137
1138 priv->led_association_on = IPW_ASSOCIATED_LED;
1139 priv->led_association_off = ~(IPW_ASSOCIATED_LED);
1140
1141 /* Set the default PINs for the OFDM leds */
1142 priv->led_ofdm_on = IPW_OFDM_LED;
1143 priv->led_ofdm_off = ~(IPW_OFDM_LED);
1144
1145 switch (priv->nic_type) {
1146 case EEPROM_NIC_TYPE_1:
1147 /* In this NIC type, the LEDs are reversed.... */
1148 priv->led_activity_on = IPW_ASSOCIATED_LED;
1149 priv->led_activity_off = ~(IPW_ASSOCIATED_LED);
1150 priv->led_association_on = IPW_ACTIVITY_LED;
1151 priv->led_association_off = ~(IPW_ACTIVITY_LED);
1152
1153 if (!(priv->config & CFG_NO_LED))
1154 ipw_led_band_on(priv);
1155
1156 /* And we don't blink link LEDs for this nic, so
1157 * just return here */
1158 return;
1159
1160 case EEPROM_NIC_TYPE_3:
1161 case EEPROM_NIC_TYPE_2:
1162 case EEPROM_NIC_TYPE_4:
1163 case EEPROM_NIC_TYPE_0:
1164 break;
1165
1166 default:
1167 IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n",
1168 priv->nic_type);
1169 priv->nic_type = EEPROM_NIC_TYPE_0;
1170 break;
1171 }
1172
1173 if (!(priv->config & CFG_NO_LED)) {
1174 if (priv->status & STATUS_ASSOCIATED)
1175 ipw_led_link_on(priv);
1176 else
1177 ipw_led_link_off(priv);
1178 }
1179 }
1180
1181 static void ipw_led_shutdown(struct ipw_priv *priv)
1182 {
1183 ipw_led_activity_off(priv);
1184 ipw_led_link_off(priv);
1185 ipw_led_band_off(priv);
1186 cancel_delayed_work(&priv->led_link_on);
1187 cancel_delayed_work(&priv->led_link_off);
1188 cancel_delayed_work(&priv->led_act_off);
1189 }
1190
1191 /*
1192 * The following adds a new attribute to the sysfs representation
1193 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
1194 * used for controlling the debug level.
1195 *
1196 * See the level definitions in ipw for details.
1197 */
1198 static ssize_t debug_level_show(struct device_driver *d, char *buf)
1199 {
1200 return sprintf(buf, "0x%08X\n", ipw_debug_level);
1201 }
1202
1203 static ssize_t debug_level_store(struct device_driver *d, const char *buf,
1204 size_t count)
1205 {
1206 char *p = (char *)buf;
1207 u32 val;
1208
1209 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1210 p++;
1211 if (p[0] == 'x' || p[0] == 'X')
1212 p++;
1213 val = simple_strtoul(p, &p, 16);
1214 } else
1215 val = simple_strtoul(p, &p, 10);
1216 if (p == buf)
1217 printk(KERN_INFO DRV_NAME
1218 ": %s is not in hex or decimal form.\n", buf);
1219 else
1220 ipw_debug_level = val;
1221
1222 return strnlen(buf, count);
1223 }
1224 static DRIVER_ATTR_RW(debug_level);
1225
1226 static inline u32 ipw_get_event_log_len(struct ipw_priv *priv)
1227 {
1228 /* length = 1st dword in log */
1229 return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG));
1230 }
1231
1232 static void ipw_capture_event_log(struct ipw_priv *priv,
1233 u32 log_len, struct ipw_event *log)
1234 {
1235 u32 base;
1236
1237 if (log_len) {
1238 base = ipw_read32(priv, IPW_EVENT_LOG);
1239 ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32),
1240 (u8 *) log, sizeof(*log) * log_len);
1241 }
1242 }
1243
1244 static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv)
1245 {
1246 struct ipw_fw_error *error;
1247 u32 log_len = ipw_get_event_log_len(priv);
1248 u32 base = ipw_read32(priv, IPW_ERROR_LOG);
1249 u32 elem_len = ipw_read_reg32(priv, base);
1250
1251 error = kmalloc(sizeof(*error) +
1252 sizeof(*error->elem) * elem_len +
1253 sizeof(*error->log) * log_len, GFP_ATOMIC);
1254 if (!error) {
1255 IPW_ERROR("Memory allocation for firmware error log "
1256 "failed.\n");
1257 return NULL;
1258 }
1259 error->jiffies = jiffies;
1260 error->status = priv->status;
1261 error->config = priv->config;
1262 error->elem_len = elem_len;
1263 error->log_len = log_len;
1264 error->elem = (struct ipw_error_elem *)error->payload;
1265 error->log = (struct ipw_event *)(error->elem + elem_len);
1266
1267 ipw_capture_event_log(priv, log_len, error->log);
1268
1269 if (elem_len)
1270 ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem,
1271 sizeof(*error->elem) * elem_len);
1272
1273 return error;
1274 }
1275
1276 static ssize_t show_event_log(struct device *d,
1277 struct device_attribute *attr, char *buf)
1278 {
1279 struct ipw_priv *priv = dev_get_drvdata(d);
1280 u32 log_len = ipw_get_event_log_len(priv);
1281 u32 log_size;
1282 struct ipw_event *log;
1283 u32 len = 0, i;
1284
1285 /* not using min() because of its strict type checking */
1286 log_size = PAGE_SIZE / sizeof(*log) > log_len ?
1287 sizeof(*log) * log_len : PAGE_SIZE;
1288 log = kzalloc(log_size, GFP_KERNEL);
1289 if (!log) {
1290 IPW_ERROR("Unable to allocate memory for log\n");
1291 return 0;
1292 }
1293 log_len = log_size / sizeof(*log);
1294 ipw_capture_event_log(priv, log_len, log);
1295
1296 len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len);
1297 for (i = 0; i < log_len; i++)
1298 len += snprintf(buf + len, PAGE_SIZE - len,
1299 "\n%08X%08X%08X",
1300 log[i].time, log[i].event, log[i].data);
1301 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1302 kfree(log);
1303 return len;
1304 }
1305
1306 static DEVICE_ATTR(event_log, 0444, show_event_log, NULL);
1307
1308 static ssize_t show_error(struct device *d,
1309 struct device_attribute *attr, char *buf)
1310 {
1311 struct ipw_priv *priv = dev_get_drvdata(d);
1312 u32 len = 0, i;
1313 if (!priv->error)
1314 return 0;
1315 len += snprintf(buf + len, PAGE_SIZE - len,
1316 "%08lX%08X%08X%08X",
1317 priv->error->jiffies,
1318 priv->error->status,
1319 priv->error->config, priv->error->elem_len);
1320 for (i = 0; i < priv->error->elem_len; i++)
1321 len += snprintf(buf + len, PAGE_SIZE - len,
1322 "\n%08X%08X%08X%08X%08X%08X%08X",
1323 priv->error->elem[i].time,
1324 priv->error->elem[i].desc,
1325 priv->error->elem[i].blink1,
1326 priv->error->elem[i].blink2,
1327 priv->error->elem[i].link1,
1328 priv->error->elem[i].link2,
1329 priv->error->elem[i].data);
1330
1331 len += snprintf(buf + len, PAGE_SIZE - len,
1332 "\n%08X", priv->error->log_len);
1333 for (i = 0; i < priv->error->log_len; i++)
1334 len += snprintf(buf + len, PAGE_SIZE - len,
1335 "\n%08X%08X%08X",
1336 priv->error->log[i].time,
1337 priv->error->log[i].event,
1338 priv->error->log[i].data);
1339 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1340 return len;
1341 }
1342
1343 static ssize_t clear_error(struct device *d,
1344 struct device_attribute *attr,
1345 const char *buf, size_t count)
1346 {
1347 struct ipw_priv *priv = dev_get_drvdata(d);
1348
1349 kfree(priv->error);
1350 priv->error = NULL;
1351 return count;
1352 }
1353
1354 static DEVICE_ATTR(error, 0644, show_error, clear_error);
1355
1356 static ssize_t show_cmd_log(struct device *d,
1357 struct device_attribute *attr, char *buf)
1358 {
1359 struct ipw_priv *priv = dev_get_drvdata(d);
1360 u32 len = 0, i;
1361 if (!priv->cmdlog)
1362 return 0;
1363 for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len;
1364 (i != priv->cmdlog_pos) && (len < PAGE_SIZE);
1365 i = (i + 1) % priv->cmdlog_len) {
1366 len +=
1367 snprintf(buf + len, PAGE_SIZE - len,
1368 "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies,
1369 priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd,
1370 priv->cmdlog[i].cmd.len);
1371 len +=
1372 snprintk_buf(buf + len, PAGE_SIZE - len,
1373 (u8 *) priv->cmdlog[i].cmd.param,
1374 priv->cmdlog[i].cmd.len);
1375 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1376 }
1377 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1378 return len;
1379 }
1380
1381 static DEVICE_ATTR(cmd_log, 0444, show_cmd_log, NULL);
1382
1383 #ifdef CONFIG_IPW2200_PROMISCUOUS
1384 static void ipw_prom_free(struct ipw_priv *priv);
1385 static int ipw_prom_alloc(struct ipw_priv *priv);
1386 static ssize_t store_rtap_iface(struct device *d,
1387 struct device_attribute *attr,
1388 const char *buf, size_t count)
1389 {
1390 struct ipw_priv *priv = dev_get_drvdata(d);
1391 int rc = 0;
1392
1393 if (count < 1)
1394 return -EINVAL;
1395
1396 switch (buf[0]) {
1397 case '0':
1398 if (!rtap_iface)
1399 return count;
1400
1401 if (netif_running(priv->prom_net_dev)) {
1402 IPW_WARNING("Interface is up. Cannot unregister.\n");
1403 return count;
1404 }
1405
1406 ipw_prom_free(priv);
1407 rtap_iface = 0;
1408 break;
1409
1410 case '1':
1411 if (rtap_iface)
1412 return count;
1413
1414 rc = ipw_prom_alloc(priv);
1415 if (!rc)
1416 rtap_iface = 1;
1417 break;
1418
1419 default:
1420 return -EINVAL;
1421 }
1422
1423 if (rc) {
1424 IPW_ERROR("Failed to register promiscuous network "
1425 "device (error %d).\n", rc);
1426 }
1427
1428 return count;
1429 }
1430
1431 static ssize_t show_rtap_iface(struct device *d,
1432 struct device_attribute *attr,
1433 char *buf)
1434 {
1435 struct ipw_priv *priv = dev_get_drvdata(d);
1436 if (rtap_iface)
1437 return sprintf(buf, "%s", priv->prom_net_dev->name);
1438 else {
1439 buf[0] = '-';
1440 buf[1] = '1';
1441 buf[2] = '\0';
1442 return 3;
1443 }
1444 }
1445
1446 static DEVICE_ATTR(rtap_iface, 0600, show_rtap_iface, store_rtap_iface);
1447
1448 static ssize_t store_rtap_filter(struct device *d,
1449 struct device_attribute *attr,
1450 const char *buf, size_t count)
1451 {
1452 struct ipw_priv *priv = dev_get_drvdata(d);
1453
1454 if (!priv->prom_priv) {
1455 IPW_ERROR("Attempting to set filter without "
1456 "rtap_iface enabled.\n");
1457 return -EPERM;
1458 }
1459
1460 priv->prom_priv->filter = simple_strtol(buf, NULL, 0);
1461
1462 IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n",
1463 BIT_ARG16(priv->prom_priv->filter));
1464
1465 return count;
1466 }
1467
1468 static ssize_t show_rtap_filter(struct device *d,
1469 struct device_attribute *attr,
1470 char *buf)
1471 {
1472 struct ipw_priv *priv = dev_get_drvdata(d);
1473 return sprintf(buf, "0x%04X",
1474 priv->prom_priv ? priv->prom_priv->filter : 0);
1475 }
1476
1477 static DEVICE_ATTR(rtap_filter, 0600, show_rtap_filter, store_rtap_filter);
1478 #endif
1479
1480 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
1481 char *buf)
1482 {
1483 struct ipw_priv *priv = dev_get_drvdata(d);
1484 return sprintf(buf, "%d\n", priv->ieee->scan_age);
1485 }
1486
1487 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
1488 const char *buf, size_t count)
1489 {
1490 struct ipw_priv *priv = dev_get_drvdata(d);
1491 struct net_device *dev = priv->net_dev;
1492 char buffer[] = "00000000";
1493 unsigned long len =
1494 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
1495 unsigned long val;
1496 char *p = buffer;
1497
1498 IPW_DEBUG_INFO("enter\n");
1499
1500 strncpy(buffer, buf, len);
1501 buffer[len] = 0;
1502
1503 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1504 p++;
1505 if (p[0] == 'x' || p[0] == 'X')
1506 p++;
1507 val = simple_strtoul(p, &p, 16);
1508 } else
1509 val = simple_strtoul(p, &p, 10);
1510 if (p == buffer) {
1511 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
1512 } else {
1513 priv->ieee->scan_age = val;
1514 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
1515 }
1516
1517 IPW_DEBUG_INFO("exit\n");
1518 return len;
1519 }
1520
1521 static DEVICE_ATTR(scan_age, 0644, show_scan_age, store_scan_age);
1522
1523 static ssize_t show_led(struct device *d, struct device_attribute *attr,
1524 char *buf)
1525 {
1526 struct ipw_priv *priv = dev_get_drvdata(d);
1527 return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1);
1528 }
1529
1530 static ssize_t store_led(struct device *d, struct device_attribute *attr,
1531 const char *buf, size_t count)
1532 {
1533 struct ipw_priv *priv = dev_get_drvdata(d);
1534
1535 IPW_DEBUG_INFO("enter\n");
1536
1537 if (count == 0)
1538 return 0;
1539
1540 if (*buf == 0) {
1541 IPW_DEBUG_LED("Disabling LED control.\n");
1542 priv->config |= CFG_NO_LED;
1543 ipw_led_shutdown(priv);
1544 } else {
1545 IPW_DEBUG_LED("Enabling LED control.\n");
1546 priv->config &= ~CFG_NO_LED;
1547 ipw_led_init(priv);
1548 }
1549
1550 IPW_DEBUG_INFO("exit\n");
1551 return count;
1552 }
1553
1554 static DEVICE_ATTR(led, 0644, show_led, store_led);
1555
1556 static ssize_t show_status(struct device *d,
1557 struct device_attribute *attr, char *buf)
1558 {
1559 struct ipw_priv *p = dev_get_drvdata(d);
1560 return sprintf(buf, "0x%08x\n", (int)p->status);
1561 }
1562
1563 static DEVICE_ATTR(status, 0444, show_status, NULL);
1564
1565 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
1566 char *buf)
1567 {
1568 struct ipw_priv *p = dev_get_drvdata(d);
1569 return sprintf(buf, "0x%08x\n", (int)p->config);
1570 }
1571
1572 static DEVICE_ATTR(cfg, 0444, show_cfg, NULL);
1573
1574 static ssize_t show_nic_type(struct device *d,
1575 struct device_attribute *attr, char *buf)
1576 {
1577 struct ipw_priv *priv = dev_get_drvdata(d);
1578 return sprintf(buf, "TYPE: %d\n", priv->nic_type);
1579 }
1580
1581 static DEVICE_ATTR(nic_type, 0444, show_nic_type, NULL);
1582
1583 static ssize_t show_ucode_version(struct device *d,
1584 struct device_attribute *attr, char *buf)
1585 {
1586 u32 len = sizeof(u32), tmp = 0;
1587 struct ipw_priv *p = dev_get_drvdata(d);
1588
1589 if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
1590 return 0;
1591
1592 return sprintf(buf, "0x%08x\n", tmp);
1593 }
1594
1595 static DEVICE_ATTR(ucode_version, 0644, show_ucode_version, NULL);
1596
1597 static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
1598 char *buf)
1599 {
1600 u32 len = sizeof(u32), tmp = 0;
1601 struct ipw_priv *p = dev_get_drvdata(d);
1602
1603 if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
1604 return 0;
1605
1606 return sprintf(buf, "0x%08x\n", tmp);
1607 }
1608
1609 static DEVICE_ATTR(rtc, 0644, show_rtc, NULL);
1610
1611 /*
1612 * Add a device attribute to view/control the delay between eeprom
1613 * operations.
1614 */
1615 static ssize_t show_eeprom_delay(struct device *d,
1616 struct device_attribute *attr, char *buf)
1617 {
1618 struct ipw_priv *p = dev_get_drvdata(d);
1619 int n = p->eeprom_delay;
1620 return sprintf(buf, "%i\n", n);
1621 }
1622 static ssize_t store_eeprom_delay(struct device *d,
1623 struct device_attribute *attr,
1624 const char *buf, size_t count)
1625 {
1626 struct ipw_priv *p = dev_get_drvdata(d);
1627 sscanf(buf, "%i", &p->eeprom_delay);
1628 return strnlen(buf, count);
1629 }
1630
1631 static DEVICE_ATTR(eeprom_delay, 0644, show_eeprom_delay, store_eeprom_delay);
1632
1633 static ssize_t show_command_event_reg(struct device *d,
1634 struct device_attribute *attr, char *buf)
1635 {
1636 u32 reg = 0;
1637 struct ipw_priv *p = dev_get_drvdata(d);
1638
1639 reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT);
1640 return sprintf(buf, "0x%08x\n", reg);
1641 }
1642 static ssize_t store_command_event_reg(struct device *d,
1643 struct device_attribute *attr,
1644 const char *buf, size_t count)
1645 {
1646 u32 reg;
1647 struct ipw_priv *p = dev_get_drvdata(d);
1648
1649 sscanf(buf, "%x", &reg);
1650 ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg);
1651 return strnlen(buf, count);
1652 }
1653
1654 static DEVICE_ATTR(command_event_reg, 0644,
1655 show_command_event_reg, store_command_event_reg);
1656
1657 static ssize_t show_mem_gpio_reg(struct device *d,
1658 struct device_attribute *attr, char *buf)
1659 {
1660 u32 reg = 0;
1661 struct ipw_priv *p = dev_get_drvdata(d);
1662
1663 reg = ipw_read_reg32(p, 0x301100);
1664 return sprintf(buf, "0x%08x\n", reg);
1665 }
1666 static ssize_t store_mem_gpio_reg(struct device *d,
1667 struct device_attribute *attr,
1668 const char *buf, size_t count)
1669 {
1670 u32 reg;
1671 struct ipw_priv *p = dev_get_drvdata(d);
1672
1673 sscanf(buf, "%x", &reg);
1674 ipw_write_reg32(p, 0x301100, reg);
1675 return strnlen(buf, count);
1676 }
1677
1678 static DEVICE_ATTR(mem_gpio_reg, 0644, show_mem_gpio_reg, store_mem_gpio_reg);
1679
1680 static ssize_t show_indirect_dword(struct device *d,
1681 struct device_attribute *attr, char *buf)
1682 {
1683 u32 reg = 0;
1684 struct ipw_priv *priv = dev_get_drvdata(d);
1685
1686 if (priv->status & STATUS_INDIRECT_DWORD)
1687 reg = ipw_read_reg32(priv, priv->indirect_dword);
1688 else
1689 reg = 0;
1690
1691 return sprintf(buf, "0x%08x\n", reg);
1692 }
1693 static ssize_t store_indirect_dword(struct device *d,
1694 struct device_attribute *attr,
1695 const char *buf, size_t count)
1696 {
1697 struct ipw_priv *priv = dev_get_drvdata(d);
1698
1699 sscanf(buf, "%x", &priv->indirect_dword);
1700 priv->status |= STATUS_INDIRECT_DWORD;
1701 return strnlen(buf, count);
1702 }
1703
1704 static DEVICE_ATTR(indirect_dword, 0644,
1705 show_indirect_dword, store_indirect_dword);
1706
1707 static ssize_t show_indirect_byte(struct device *d,
1708 struct device_attribute *attr, char *buf)
1709 {
1710 u8 reg = 0;
1711 struct ipw_priv *priv = dev_get_drvdata(d);
1712
1713 if (priv->status & STATUS_INDIRECT_BYTE)
1714 reg = ipw_read_reg8(priv, priv->indirect_byte);
1715 else
1716 reg = 0;
1717
1718 return sprintf(buf, "0x%02x\n", reg);
1719 }
1720 static ssize_t store_indirect_byte(struct device *d,
1721 struct device_attribute *attr,
1722 const char *buf, size_t count)
1723 {
1724 struct ipw_priv *priv = dev_get_drvdata(d);
1725
1726 sscanf(buf, "%x", &priv->indirect_byte);
1727 priv->status |= STATUS_INDIRECT_BYTE;
1728 return strnlen(buf, count);
1729 }
1730
1731 static DEVICE_ATTR(indirect_byte, 0644,
1732 show_indirect_byte, store_indirect_byte);
1733
1734 static ssize_t show_direct_dword(struct device *d,
1735 struct device_attribute *attr, char *buf)
1736 {
1737 u32 reg = 0;
1738 struct ipw_priv *priv = dev_get_drvdata(d);
1739
1740 if (priv->status & STATUS_DIRECT_DWORD)
1741 reg = ipw_read32(priv, priv->direct_dword);
1742 else
1743 reg = 0;
1744
1745 return sprintf(buf, "0x%08x\n", reg);
1746 }
1747 static ssize_t store_direct_dword(struct device *d,
1748 struct device_attribute *attr,
1749 const char *buf, size_t count)
1750 {
1751 struct ipw_priv *priv = dev_get_drvdata(d);
1752
1753 sscanf(buf, "%x", &priv->direct_dword);
1754 priv->status |= STATUS_DIRECT_DWORD;
1755 return strnlen(buf, count);
1756 }
1757
1758 static DEVICE_ATTR(direct_dword, 0644, show_direct_dword, store_direct_dword);
1759
1760 static int rf_kill_active(struct ipw_priv *priv)
1761 {
1762 if (0 == (ipw_read32(priv, 0x30) & 0x10000)) {
1763 priv->status |= STATUS_RF_KILL_HW;
1764 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1765 } else {
1766 priv->status &= ~STATUS_RF_KILL_HW;
1767 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1768 }
1769
1770 return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
1771 }
1772
1773 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
1774 char *buf)
1775 {
1776 /* 0 - RF kill not enabled
1777 1 - SW based RF kill active (sysfs)
1778 2 - HW based RF kill active
1779 3 - Both HW and SW baed RF kill active */
1780 struct ipw_priv *priv = dev_get_drvdata(d);
1781 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
1782 (rf_kill_active(priv) ? 0x2 : 0x0);
1783 return sprintf(buf, "%i\n", val);
1784 }
1785
1786 static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
1787 {
1788 if ((disable_radio ? 1 : 0) ==
1789 ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0))
1790 return 0;
1791
1792 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
1793 disable_radio ? "OFF" : "ON");
1794
1795 if (disable_radio) {
1796 priv->status |= STATUS_RF_KILL_SW;
1797
1798 cancel_delayed_work(&priv->request_scan);
1799 cancel_delayed_work(&priv->request_direct_scan);
1800 cancel_delayed_work(&priv->request_passive_scan);
1801 cancel_delayed_work(&priv->scan_event);
1802 schedule_work(&priv->down);
1803 } else {
1804 priv->status &= ~STATUS_RF_KILL_SW;
1805 if (rf_kill_active(priv)) {
1806 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
1807 "disabled by HW switch\n");
1808 /* Make sure the RF_KILL check timer is running */
1809 cancel_delayed_work(&priv->rf_kill);
1810 schedule_delayed_work(&priv->rf_kill,
1811 round_jiffies_relative(2 * HZ));
1812 } else
1813 schedule_work(&priv->up);
1814 }
1815
1816 return 1;
1817 }
1818
1819 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
1820 const char *buf, size_t count)
1821 {
1822 struct ipw_priv *priv = dev_get_drvdata(d);
1823
1824 ipw_radio_kill_sw(priv, buf[0] == '1');
1825
1826 return count;
1827 }
1828
1829 static DEVICE_ATTR(rf_kill, 0644, show_rf_kill, store_rf_kill);
1830
1831 static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr,
1832 char *buf)
1833 {
1834 struct ipw_priv *priv = dev_get_drvdata(d);
1835 int pos = 0, len = 0;
1836 if (priv->config & CFG_SPEED_SCAN) {
1837 while (priv->speed_scan[pos] != 0)
1838 len += sprintf(&buf[len], "%d ",
1839 priv->speed_scan[pos++]);
1840 return len + sprintf(&buf[len], "\n");
1841 }
1842
1843 return sprintf(buf, "0\n");
1844 }
1845
1846 static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr,
1847 const char *buf, size_t count)
1848 {
1849 struct ipw_priv *priv = dev_get_drvdata(d);
1850 int channel, pos = 0;
1851 const char *p = buf;
1852
1853 /* list of space separated channels to scan, optionally ending with 0 */
1854 while ((channel = simple_strtol(p, NULL, 0))) {
1855 if (pos == MAX_SPEED_SCAN - 1) {
1856 priv->speed_scan[pos] = 0;
1857 break;
1858 }
1859
1860 if (libipw_is_valid_channel(priv->ieee, channel))
1861 priv->speed_scan[pos++] = channel;
1862 else
1863 IPW_WARNING("Skipping invalid channel request: %d\n",
1864 channel);
1865 p = strchr(p, ' ');
1866 if (!p)
1867 break;
1868 while (*p == ' ' || *p == '\t')
1869 p++;
1870 }
1871
1872 if (pos == 0)
1873 priv->config &= ~CFG_SPEED_SCAN;
1874 else {
1875 priv->speed_scan_pos = 0;
1876 priv->config |= CFG_SPEED_SCAN;
1877 }
1878
1879 return count;
1880 }
1881
1882 static DEVICE_ATTR(speed_scan, 0644, show_speed_scan, store_speed_scan);
1883
1884 static ssize_t show_net_stats(struct device *d, struct device_attribute *attr,
1885 char *buf)
1886 {
1887 struct ipw_priv *priv = dev_get_drvdata(d);
1888 return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0');
1889 }
1890
1891 static ssize_t store_net_stats(struct device *d, struct device_attribute *attr,
1892 const char *buf, size_t count)
1893 {
1894 struct ipw_priv *priv = dev_get_drvdata(d);
1895 if (buf[0] == '1')
1896 priv->config |= CFG_NET_STATS;
1897 else
1898 priv->config &= ~CFG_NET_STATS;
1899
1900 return count;
1901 }
1902
1903 static DEVICE_ATTR(net_stats, 0644, show_net_stats, store_net_stats);
1904
1905 static ssize_t show_channels(struct device *d,
1906 struct device_attribute *attr,
1907 char *buf)
1908 {
1909 struct ipw_priv *priv = dev_get_drvdata(d);
1910 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1911 int len = 0, i;
1912
1913 len = sprintf(&buf[len],
1914 "Displaying %d channels in 2.4Ghz band "
1915 "(802.11bg):\n", geo->bg_channels);
1916
1917 for (i = 0; i < geo->bg_channels; i++) {
1918 len += sprintf(&buf[len], "%d: BSS%s%s, %s, Band %s.\n",
1919 geo->bg[i].channel,
1920 geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT ?
1921 " (radar spectrum)" : "",
1922 ((geo->bg[i].flags & LIBIPW_CH_NO_IBSS) ||
1923 (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT))
1924 ? "" : ", IBSS",
1925 geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY ?
1926 "passive only" : "active/passive",
1927 geo->bg[i].flags & LIBIPW_CH_B_ONLY ?
1928 "B" : "B/G");
1929 }
1930
1931 len += sprintf(&buf[len],
1932 "Displaying %d channels in 5.2Ghz band "
1933 "(802.11a):\n", geo->a_channels);
1934 for (i = 0; i < geo->a_channels; i++) {
1935 len += sprintf(&buf[len], "%d: BSS%s%s, %s.\n",
1936 geo->a[i].channel,
1937 geo->a[i].flags & LIBIPW_CH_RADAR_DETECT ?
1938 " (radar spectrum)" : "",
1939 ((geo->a[i].flags & LIBIPW_CH_NO_IBSS) ||
1940 (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT))
1941 ? "" : ", IBSS",
1942 geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY ?
1943 "passive only" : "active/passive");
1944 }
1945
1946 return len;
1947 }
1948
1949 static DEVICE_ATTR(channels, 0400, show_channels, NULL);
1950
1951 static void notify_wx_assoc_event(struct ipw_priv *priv)
1952 {
1953 union iwreq_data wrqu;
1954 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1955 if (priv->status & STATUS_ASSOCIATED)
1956 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
1957 else
1958 eth_zero_addr(wrqu.ap_addr.sa_data);
1959 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1960 }
1961
1962 static void ipw_irq_tasklet(struct ipw_priv *priv)
1963 {
1964 u32 inta, inta_mask, handled = 0;
1965 unsigned long flags;
1966 int rc = 0;
1967
1968 spin_lock_irqsave(&priv->irq_lock, flags);
1969
1970 inta = ipw_read32(priv, IPW_INTA_RW);
1971 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
1972
1973 if (inta == 0xFFFFFFFF) {
1974 /* Hardware disappeared */
1975 IPW_WARNING("TASKLET INTA == 0xFFFFFFFF\n");
1976 /* Only handle the cached INTA values */
1977 inta = 0;
1978 }
1979 inta &= (IPW_INTA_MASK_ALL & inta_mask);
1980
1981 /* Add any cached INTA values that need to be handled */
1982 inta |= priv->isr_inta;
1983
1984 spin_unlock_irqrestore(&priv->irq_lock, flags);
1985
1986 spin_lock_irqsave(&priv->lock, flags);
1987
1988 /* handle all the justifications for the interrupt */
1989 if (inta & IPW_INTA_BIT_RX_TRANSFER) {
1990 ipw_rx(priv);
1991 handled |= IPW_INTA_BIT_RX_TRANSFER;
1992 }
1993
1994 if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) {
1995 IPW_DEBUG_HC("Command completed.\n");
1996 rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1);
1997 priv->status &= ~STATUS_HCMD_ACTIVE;
1998 wake_up_interruptible(&priv->wait_command_queue);
1999 handled |= IPW_INTA_BIT_TX_CMD_QUEUE;
2000 }
2001
2002 if (inta & IPW_INTA_BIT_TX_QUEUE_1) {
2003 IPW_DEBUG_TX("TX_QUEUE_1\n");
2004 rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0);
2005 handled |= IPW_INTA_BIT_TX_QUEUE_1;
2006 }
2007
2008 if (inta & IPW_INTA_BIT_TX_QUEUE_2) {
2009 IPW_DEBUG_TX("TX_QUEUE_2\n");
2010 rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1);
2011 handled |= IPW_INTA_BIT_TX_QUEUE_2;
2012 }
2013
2014 if (inta & IPW_INTA_BIT_TX_QUEUE_3) {
2015 IPW_DEBUG_TX("TX_QUEUE_3\n");
2016 rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2);
2017 handled |= IPW_INTA_BIT_TX_QUEUE_3;
2018 }
2019
2020 if (inta & IPW_INTA_BIT_TX_QUEUE_4) {
2021 IPW_DEBUG_TX("TX_QUEUE_4\n");
2022 rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3);
2023 handled |= IPW_INTA_BIT_TX_QUEUE_4;
2024 }
2025
2026 if (inta & IPW_INTA_BIT_STATUS_CHANGE) {
2027 IPW_WARNING("STATUS_CHANGE\n");
2028 handled |= IPW_INTA_BIT_STATUS_CHANGE;
2029 }
2030
2031 if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) {
2032 IPW_WARNING("TX_PERIOD_EXPIRED\n");
2033 handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED;
2034 }
2035
2036 if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
2037 IPW_WARNING("HOST_CMD_DONE\n");
2038 handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
2039 }
2040
2041 if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) {
2042 IPW_WARNING("FW_INITIALIZATION_DONE\n");
2043 handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE;
2044 }
2045
2046 if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
2047 IPW_WARNING("PHY_OFF_DONE\n");
2048 handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
2049 }
2050
2051 if (inta & IPW_INTA_BIT_RF_KILL_DONE) {
2052 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
2053 priv->status |= STATUS_RF_KILL_HW;
2054 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2055 wake_up_interruptible(&priv->wait_command_queue);
2056 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2057 cancel_delayed_work(&priv->request_scan);
2058 cancel_delayed_work(&priv->request_direct_scan);
2059 cancel_delayed_work(&priv->request_passive_scan);
2060 cancel_delayed_work(&priv->scan_event);
2061 schedule_work(&priv->link_down);
2062 schedule_delayed_work(&priv->rf_kill, 2 * HZ);
2063 handled |= IPW_INTA_BIT_RF_KILL_DONE;
2064 }
2065
2066 if (inta & IPW_INTA_BIT_FATAL_ERROR) {
2067 IPW_WARNING("Firmware error detected. Restarting.\n");
2068 if (priv->error) {
2069 IPW_DEBUG_FW("Sysfs 'error' log already exists.\n");
2070 if (ipw_debug_level & IPW_DL_FW_ERRORS) {
2071 struct ipw_fw_error *error =
2072 ipw_alloc_error_log(priv);
2073 ipw_dump_error_log(priv, error);
2074 kfree(error);
2075 }
2076 } else {
2077 priv->error = ipw_alloc_error_log(priv);
2078 if (priv->error)
2079 IPW_DEBUG_FW("Sysfs 'error' log captured.\n");
2080 else
2081 IPW_DEBUG_FW("Error allocating sysfs 'error' "
2082 "log.\n");
2083 if (ipw_debug_level & IPW_DL_FW_ERRORS)
2084 ipw_dump_error_log(priv, priv->error);
2085 }
2086
2087 /* XXX: If hardware encryption is for WPA/WPA2,
2088 * we have to notify the supplicant. */
2089 if (priv->ieee->sec.encrypt) {
2090 priv->status &= ~STATUS_ASSOCIATED;
2091 notify_wx_assoc_event(priv);
2092 }
2093
2094 /* Keep the restart process from trying to send host
2095 * commands by clearing the INIT status bit */
2096 priv->status &= ~STATUS_INIT;
2097
2098 /* Cancel currently queued command. */
2099 priv->status &= ~STATUS_HCMD_ACTIVE;
2100 wake_up_interruptible(&priv->wait_command_queue);
2101
2102 schedule_work(&priv->adapter_restart);
2103 handled |= IPW_INTA_BIT_FATAL_ERROR;
2104 }
2105
2106 if (inta & IPW_INTA_BIT_PARITY_ERROR) {
2107 IPW_ERROR("Parity error\n");
2108 handled |= IPW_INTA_BIT_PARITY_ERROR;
2109 }
2110
2111 if (handled != inta) {
2112 IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
2113 }
2114
2115 spin_unlock_irqrestore(&priv->lock, flags);
2116
2117 /* enable all interrupts */
2118 ipw_enable_interrupts(priv);
2119 }
2120
2121 #define IPW_CMD(x) case IPW_CMD_ ## x : return #x
2122 static char *get_cmd_string(u8 cmd)
2123 {
2124 switch (cmd) {
2125 IPW_CMD(HOST_COMPLETE);
2126 IPW_CMD(POWER_DOWN);
2127 IPW_CMD(SYSTEM_CONFIG);
2128 IPW_CMD(MULTICAST_ADDRESS);
2129 IPW_CMD(SSID);
2130 IPW_CMD(ADAPTER_ADDRESS);
2131 IPW_CMD(PORT_TYPE);
2132 IPW_CMD(RTS_THRESHOLD);
2133 IPW_CMD(FRAG_THRESHOLD);
2134 IPW_CMD(POWER_MODE);
2135 IPW_CMD(WEP_KEY);
2136 IPW_CMD(TGI_TX_KEY);
2137 IPW_CMD(SCAN_REQUEST);
2138 IPW_CMD(SCAN_REQUEST_EXT);
2139 IPW_CMD(ASSOCIATE);
2140 IPW_CMD(SUPPORTED_RATES);
2141 IPW_CMD(SCAN_ABORT);
2142 IPW_CMD(TX_FLUSH);
2143 IPW_CMD(QOS_PARAMETERS);
2144 IPW_CMD(DINO_CONFIG);
2145 IPW_CMD(RSN_CAPABILITIES);
2146 IPW_CMD(RX_KEY);
2147 IPW_CMD(CARD_DISABLE);
2148 IPW_CMD(SEED_NUMBER);
2149 IPW_CMD(TX_POWER);
2150 IPW_CMD(COUNTRY_INFO);
2151 IPW_CMD(AIRONET_INFO);
2152 IPW_CMD(AP_TX_POWER);
2153 IPW_CMD(CCKM_INFO);
2154 IPW_CMD(CCX_VER_INFO);
2155 IPW_CMD(SET_CALIBRATION);
2156 IPW_CMD(SENSITIVITY_CALIB);
2157 IPW_CMD(RETRY_LIMIT);
2158 IPW_CMD(IPW_PRE_POWER_DOWN);
2159 IPW_CMD(VAP_BEACON_TEMPLATE);
2160 IPW_CMD(VAP_DTIM_PERIOD);
2161 IPW_CMD(EXT_SUPPORTED_RATES);
2162 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
2163 IPW_CMD(VAP_QUIET_INTERVALS);
2164 IPW_CMD(VAP_CHANNEL_SWITCH);
2165 IPW_CMD(VAP_MANDATORY_CHANNELS);
2166 IPW_CMD(VAP_CELL_PWR_LIMIT);
2167 IPW_CMD(VAP_CF_PARAM_SET);
2168 IPW_CMD(VAP_SET_BEACONING_STATE);
2169 IPW_CMD(MEASUREMENT);
2170 IPW_CMD(POWER_CAPABILITY);
2171 IPW_CMD(SUPPORTED_CHANNELS);
2172 IPW_CMD(TPC_REPORT);
2173 IPW_CMD(WME_INFO);
2174 IPW_CMD(PRODUCTION_COMMAND);
2175 default:
2176 return "UNKNOWN";
2177 }
2178 }
2179
2180 #define HOST_COMPLETE_TIMEOUT HZ
2181
2182 static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
2183 {
2184 int rc = 0;
2185 unsigned long flags;
2186 unsigned long now, end;
2187
2188 spin_lock_irqsave(&priv->lock, flags);
2189 if (priv->status & STATUS_HCMD_ACTIVE) {
2190 IPW_ERROR("Failed to send %s: Already sending a command.\n",
2191 get_cmd_string(cmd->cmd));
2192 spin_unlock_irqrestore(&priv->lock, flags);
2193 return -EAGAIN;
2194 }
2195
2196 priv->status |= STATUS_HCMD_ACTIVE;
2197
2198 if (priv->cmdlog) {
2199 priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies;
2200 priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd;
2201 priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len;
2202 memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param,
2203 cmd->len);
2204 priv->cmdlog[priv->cmdlog_pos].retcode = -1;
2205 }
2206
2207 IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n",
2208 get_cmd_string(cmd->cmd), cmd->cmd, cmd->len,
2209 priv->status);
2210
2211 #ifndef DEBUG_CMD_WEP_KEY
2212 if (cmd->cmd == IPW_CMD_WEP_KEY)
2213 IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n");
2214 else
2215 #endif
2216 printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len);
2217
2218 rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0);
2219 if (rc) {
2220 priv->status &= ~STATUS_HCMD_ACTIVE;
2221 IPW_ERROR("Failed to send %s: Reason %d\n",
2222 get_cmd_string(cmd->cmd), rc);
2223 spin_unlock_irqrestore(&priv->lock, flags);
2224 goto exit;
2225 }
2226 spin_unlock_irqrestore(&priv->lock, flags);
2227
2228 now = jiffies;
2229 end = now + HOST_COMPLETE_TIMEOUT;
2230 again:
2231 rc = wait_event_interruptible_timeout(priv->wait_command_queue,
2232 !(priv->
2233 status & STATUS_HCMD_ACTIVE),
2234 end - now);
2235 if (rc < 0) {
2236 now = jiffies;
2237 if (time_before(now, end))
2238 goto again;
2239 rc = 0;
2240 }
2241
2242 if (rc == 0) {
2243 spin_lock_irqsave(&priv->lock, flags);
2244 if (priv->status & STATUS_HCMD_ACTIVE) {
2245 IPW_ERROR("Failed to send %s: Command timed out.\n",
2246 get_cmd_string(cmd->cmd));
2247 priv->status &= ~STATUS_HCMD_ACTIVE;
2248 spin_unlock_irqrestore(&priv->lock, flags);
2249 rc = -EIO;
2250 goto exit;
2251 }
2252 spin_unlock_irqrestore(&priv->lock, flags);
2253 } else
2254 rc = 0;
2255
2256 if (priv->status & STATUS_RF_KILL_HW) {
2257 IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n",
2258 get_cmd_string(cmd->cmd));
2259 rc = -EIO;
2260 goto exit;
2261 }
2262
2263 exit:
2264 if (priv->cmdlog) {
2265 priv->cmdlog[priv->cmdlog_pos++].retcode = rc;
2266 priv->cmdlog_pos %= priv->cmdlog_len;
2267 }
2268 return rc;
2269 }
2270
2271 static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command)
2272 {
2273 struct host_cmd cmd = {
2274 .cmd = command,
2275 };
2276
2277 return __ipw_send_cmd(priv, &cmd);
2278 }
2279
2280 static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len,
2281 void *data)
2282 {
2283 struct host_cmd cmd = {
2284 .cmd = command,
2285 .len = len,
2286 .param = data,
2287 };
2288
2289 return __ipw_send_cmd(priv, &cmd);
2290 }
2291
2292 static int ipw_send_host_complete(struct ipw_priv *priv)
2293 {
2294 if (!priv) {
2295 IPW_ERROR("Invalid args\n");
2296 return -1;
2297 }
2298
2299 return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE);
2300 }
2301
2302 static int ipw_send_system_config(struct ipw_priv *priv)
2303 {
2304 return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG,
2305 sizeof(priv->sys_config),
2306 &priv->sys_config);
2307 }
2308
2309 static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len)
2310 {
2311 if (!priv || !ssid) {
2312 IPW_ERROR("Invalid args\n");
2313 return -1;
2314 }
2315
2316 return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE),
2317 ssid);
2318 }
2319
2320 static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac)
2321 {
2322 if (!priv || !mac) {
2323 IPW_ERROR("Invalid args\n");
2324 return -1;
2325 }
2326
2327 IPW_DEBUG_INFO("%s: Setting MAC to %pM\n",
2328 priv->net_dev->name, mac);
2329
2330 return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac);
2331 }
2332
2333 static void ipw_adapter_restart(void *adapter)
2334 {
2335 struct ipw_priv *priv = adapter;
2336
2337 if (priv->status & STATUS_RF_KILL_MASK)
2338 return;
2339
2340 ipw_down(priv);
2341
2342 if (priv->assoc_network &&
2343 (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS))
2344 ipw_remove_current_network(priv);
2345
2346 if (ipw_up(priv)) {
2347 IPW_ERROR("Failed to up device\n");
2348 return;
2349 }
2350 }
2351
2352 static void ipw_bg_adapter_restart(struct work_struct *work)
2353 {
2354 struct ipw_priv *priv =
2355 container_of(work, struct ipw_priv, adapter_restart);
2356 mutex_lock(&priv->mutex);
2357 ipw_adapter_restart(priv);
2358 mutex_unlock(&priv->mutex);
2359 }
2360
2361 static void ipw_abort_scan(struct ipw_priv *priv);
2362
2363 #define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
2364
2365 static void ipw_scan_check(void *data)
2366 {
2367 struct ipw_priv *priv = data;
2368
2369 if (priv->status & STATUS_SCAN_ABORTING) {
2370 IPW_DEBUG_SCAN("Scan completion watchdog resetting "
2371 "adapter after (%dms).\n",
2372 jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG));
2373 schedule_work(&priv->adapter_restart);
2374 } else if (priv->status & STATUS_SCANNING) {
2375 IPW_DEBUG_SCAN("Scan completion watchdog aborting scan "
2376 "after (%dms).\n",
2377 jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG));
2378 ipw_abort_scan(priv);
2379 schedule_delayed_work(&priv->scan_check, HZ);
2380 }
2381 }
2382
2383 static void ipw_bg_scan_check(struct work_struct *work)
2384 {
2385 struct ipw_priv *priv =
2386 container_of(work, struct ipw_priv, scan_check.work);
2387 mutex_lock(&priv->mutex);
2388 ipw_scan_check(priv);
2389 mutex_unlock(&priv->mutex);
2390 }
2391
2392 static int ipw_send_scan_request_ext(struct ipw_priv *priv,
2393 struct ipw_scan_request_ext *request)
2394 {
2395 return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT,
2396 sizeof(*request), request);
2397 }
2398
2399 static int ipw_send_scan_abort(struct ipw_priv *priv)
2400 {
2401 if (!priv) {
2402 IPW_ERROR("Invalid args\n");
2403 return -1;
2404 }
2405
2406 return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT);
2407 }
2408
2409 static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
2410 {
2411 struct ipw_sensitivity_calib calib = {
2412 .beacon_rssi_raw = cpu_to_le16(sens),
2413 };
2414
2415 return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib),
2416 &calib);
2417 }
2418
2419 static int ipw_send_associate(struct ipw_priv *priv,
2420 struct ipw_associate *associate)
2421 {
2422 if (!priv || !associate) {
2423 IPW_ERROR("Invalid args\n");
2424 return -1;
2425 }
2426
2427 return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(*associate),
2428 associate);
2429 }
2430
2431 static int ipw_send_supported_rates(struct ipw_priv *priv,
2432 struct ipw_supported_rates *rates)
2433 {
2434 if (!priv || !rates) {
2435 IPW_ERROR("Invalid args\n");
2436 return -1;
2437 }
2438
2439 return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates),
2440 rates);
2441 }
2442
2443 static int ipw_set_random_seed(struct ipw_priv *priv)
2444 {
2445 u32 val;
2446
2447 if (!priv) {
2448 IPW_ERROR("Invalid args\n");
2449 return -1;
2450 }
2451
2452 get_random_bytes(&val, sizeof(val));
2453
2454 return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val);
2455 }
2456
2457 static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
2458 {
2459 __le32 v = cpu_to_le32(phy_off);
2460 if (!priv) {
2461 IPW_ERROR("Invalid args\n");
2462 return -1;
2463 }
2464
2465 return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(v), &v);
2466 }
2467
2468 static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power)
2469 {
2470 if (!priv || !power) {
2471 IPW_ERROR("Invalid args\n");
2472 return -1;
2473 }
2474
2475 return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power);
2476 }
2477
2478 static int ipw_set_tx_power(struct ipw_priv *priv)
2479 {
2480 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
2481 struct ipw_tx_power tx_power;
2482 s8 max_power;
2483 int i;
2484
2485 memset(&tx_power, 0, sizeof(tx_power));
2486
2487 /* configure device for 'G' band */
2488 tx_power.ieee_mode = IPW_G_MODE;
2489 tx_power.num_channels = geo->bg_channels;
2490 for (i = 0; i < geo->bg_channels; i++) {
2491 max_power = geo->bg[i].max_power;
2492 tx_power.channels_tx_power[i].channel_number =
2493 geo->bg[i].channel;
2494 tx_power.channels_tx_power[i].tx_power = max_power ?
2495 min(max_power, priv->tx_power) : priv->tx_power;
2496 }
2497 if (ipw_send_tx_power(priv, &tx_power))
2498 return -EIO;
2499
2500 /* configure device to also handle 'B' band */
2501 tx_power.ieee_mode = IPW_B_MODE;
2502 if (ipw_send_tx_power(priv, &tx_power))
2503 return -EIO;
2504
2505 /* configure device to also handle 'A' band */
2506 if (priv->ieee->abg_true) {
2507 tx_power.ieee_mode = IPW_A_MODE;
2508 tx_power.num_channels = geo->a_channels;
2509 for (i = 0; i < tx_power.num_channels; i++) {
2510 max_power = geo->a[i].max_power;
2511 tx_power.channels_tx_power[i].channel_number =
2512 geo->a[i].channel;
2513 tx_power.channels_tx_power[i].tx_power = max_power ?
2514 min(max_power, priv->tx_power) : priv->tx_power;
2515 }
2516 if (ipw_send_tx_power(priv, &tx_power))
2517 return -EIO;
2518 }
2519 return 0;
2520 }
2521
2522 static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
2523 {
2524 struct ipw_rts_threshold rts_threshold = {
2525 .rts_threshold = cpu_to_le16(rts),
2526 };
2527
2528 if (!priv) {
2529 IPW_ERROR("Invalid args\n");
2530 return -1;
2531 }
2532
2533 return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD,
2534 sizeof(rts_threshold), &rts_threshold);
2535 }
2536
2537 static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
2538 {
2539 struct ipw_frag_threshold frag_threshold = {
2540 .frag_threshold = cpu_to_le16(frag),
2541 };
2542
2543 if (!priv) {
2544 IPW_ERROR("Invalid args\n");
2545 return -1;
2546 }
2547
2548 return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD,
2549 sizeof(frag_threshold), &frag_threshold);
2550 }
2551
2552 static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
2553 {
2554 __le32 param;
2555
2556 if (!priv) {
2557 IPW_ERROR("Invalid args\n");
2558 return -1;
2559 }
2560
2561 /* If on battery, set to 3, if AC set to CAM, else user
2562 * level */
2563 switch (mode) {
2564 case IPW_POWER_BATTERY:
2565 param = cpu_to_le32(IPW_POWER_INDEX_3);
2566 break;
2567 case IPW_POWER_AC:
2568 param = cpu_to_le32(IPW_POWER_MODE_CAM);
2569 break;
2570 default:
2571 param = cpu_to_le32(mode);
2572 break;
2573 }
2574
2575 return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param),
2576 &param);
2577 }
2578
2579 static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit)
2580 {
2581 struct ipw_retry_limit retry_limit = {
2582 .short_retry_limit = slimit,
2583 .long_retry_limit = llimit
2584 };
2585
2586 if (!priv) {
2587 IPW_ERROR("Invalid args\n");
2588 return -1;
2589 }
2590
2591 return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit),
2592 &retry_limit);
2593 }
2594
2595 /*
2596 * The IPW device contains a Microwire compatible EEPROM that stores
2597 * various data like the MAC address. Usually the firmware has exclusive
2598 * access to the eeprom, but during device initialization (before the
2599 * device driver has sent the HostComplete command to the firmware) the
2600 * device driver has read access to the EEPROM by way of indirect addressing
2601 * through a couple of memory mapped registers.
2602 *
2603 * The following is a simplified implementation for pulling data out of the
2604 * the eeprom, along with some helper functions to find information in
2605 * the per device private data's copy of the eeprom.
2606 *
2607 * NOTE: To better understand how these functions work (i.e what is a chip
2608 * select and why do have to keep driving the eeprom clock?), read
2609 * just about any data sheet for a Microwire compatible EEPROM.
2610 */
2611
2612 /* write a 32 bit value into the indirect accessor register */
2613 static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
2614 {
2615 ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
2616
2617 /* the eeprom requires some time to complete the operation */
2618 udelay(p->eeprom_delay);
2619 }
2620
2621 /* perform a chip select operation */
2622 static void eeprom_cs(struct ipw_priv *priv)
2623 {
2624 eeprom_write_reg(priv, 0);
2625 eeprom_write_reg(priv, EEPROM_BIT_CS);
2626 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2627 eeprom_write_reg(priv, EEPROM_BIT_CS);
2628 }
2629
2630 /* perform a chip select operation */
2631 static void eeprom_disable_cs(struct ipw_priv *priv)
2632 {
2633 eeprom_write_reg(priv, EEPROM_BIT_CS);
2634 eeprom_write_reg(priv, 0);
2635 eeprom_write_reg(priv, EEPROM_BIT_SK);
2636 }
2637
2638 /* push a single bit down to the eeprom */
2639 static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit)
2640 {
2641 int d = (bit ? EEPROM_BIT_DI : 0);
2642 eeprom_write_reg(p, EEPROM_BIT_CS | d);
2643 eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK);
2644 }
2645
2646 /* push an opcode followed by an address down to the eeprom */
2647 static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr)
2648 {
2649 int i;
2650
2651 eeprom_cs(priv);
2652 eeprom_write_bit(priv, 1);
2653 eeprom_write_bit(priv, op & 2);
2654 eeprom_write_bit(priv, op & 1);
2655 for (i = 7; i >= 0; i--) {
2656 eeprom_write_bit(priv, addr & (1 << i));
2657 }
2658 }
2659
2660 /* pull 16 bits off the eeprom, one bit at a time */
2661 static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr)
2662 {
2663 int i;
2664 u16 r = 0;
2665
2666 /* Send READ Opcode */
2667 eeprom_op(priv, EEPROM_CMD_READ, addr);
2668
2669 /* Send dummy bit */
2670 eeprom_write_reg(priv, EEPROM_BIT_CS);
2671
2672 /* Read the byte off the eeprom one bit at a time */
2673 for (i = 0; i < 16; i++) {
2674 u32 data = 0;
2675 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2676 eeprom_write_reg(priv, EEPROM_BIT_CS);
2677 data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS);
2678 r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0);
2679 }
2680
2681 /* Send another dummy bit */
2682 eeprom_write_reg(priv, 0);
2683 eeprom_disable_cs(priv);
2684
2685 return r;
2686 }
2687
2688 /* helper function for pulling the mac address out of the private */
2689 /* data's copy of the eeprom data */
2690 static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
2691 {
2692 memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], ETH_ALEN);
2693 }
2694
2695 static void ipw_read_eeprom(struct ipw_priv *priv)
2696 {
2697 int i;
2698 __le16 *eeprom = (__le16 *) priv->eeprom;
2699
2700 IPW_DEBUG_TRACE(">>\n");
2701
2702 /* read entire contents of eeprom into private buffer */
2703 for (i = 0; i < 128; i++)
2704 eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i));
2705
2706 IPW_DEBUG_TRACE("<<\n");
2707 }
2708
2709 /*
2710 * Either the device driver (i.e. the host) or the firmware can
2711 * load eeprom data into the designated region in SRAM. If neither
2712 * happens then the FW will shutdown with a fatal error.
2713 *
2714 * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
2715 * bit needs region of shared SRAM needs to be non-zero.
2716 */
2717 static void ipw_eeprom_init_sram(struct ipw_priv *priv)
2718 {
2719 int i;
2720
2721 IPW_DEBUG_TRACE(">>\n");
2722
2723 /*
2724 If the data looks correct, then copy it to our private
2725 copy. Otherwise let the firmware know to perform the operation
2726 on its own.
2727 */
2728 if (priv->eeprom[EEPROM_VERSION] != 0) {
2729 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
2730
2731 /* write the eeprom data to sram */
2732 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
2733 ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]);
2734
2735 /* Do not load eeprom data on fatal error or suspend */
2736 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
2737 } else {
2738 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
2739
2740 /* Load eeprom data on fatal error or suspend */
2741 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
2742 }
2743
2744 IPW_DEBUG_TRACE("<<\n");
2745 }
2746
2747 static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
2748 {
2749 count >>= 2;
2750 if (!count)
2751 return;
2752 _ipw_write32(priv, IPW_AUTOINC_ADDR, start);
2753 while (count--)
2754 _ipw_write32(priv, IPW_AUTOINC_DATA, 0);
2755 }
2756
2757 static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
2758 {
2759 ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL,
2760 CB_NUMBER_OF_ELEMENTS_SMALL *
2761 sizeof(struct command_block));
2762 }
2763
2764 static int ipw_fw_dma_enable(struct ipw_priv *priv)
2765 { /* start dma engine but no transfers yet */
2766
2767 IPW_DEBUG_FW(">> :\n");
2768
2769 /* Start the dma */
2770 ipw_fw_dma_reset_command_blocks(priv);
2771
2772 /* Write CB base address */
2773 ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL);
2774
2775 IPW_DEBUG_FW("<< :\n");
2776 return 0;
2777 }
2778
2779 static void ipw_fw_dma_abort(struct ipw_priv *priv)
2780 {
2781 u32 control = 0;
2782
2783 IPW_DEBUG_FW(">> :\n");
2784
2785 /* set the Stop and Abort bit */
2786 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
2787 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2788 priv->sram_desc.last_cb_index = 0;
2789
2790 IPW_DEBUG_FW("<<\n");
2791 }
2792
2793 static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index,
2794 struct command_block *cb)
2795 {
2796 u32 address =
2797 IPW_SHARED_SRAM_DMA_CONTROL +
2798 (sizeof(struct command_block) * index);
2799 IPW_DEBUG_FW(">> :\n");
2800
2801 ipw_write_indirect(priv, address, (u8 *) cb,
2802 (int)sizeof(struct command_block));
2803
2804 IPW_DEBUG_FW("<< :\n");
2805 return 0;
2806
2807 }
2808
2809 static int ipw_fw_dma_kick(struct ipw_priv *priv)
2810 {
2811 u32 control = 0;
2812 u32 index = 0;
2813
2814 IPW_DEBUG_FW(">> :\n");
2815
2816 for (index = 0; index < priv->sram_desc.last_cb_index; index++)
2817 ipw_fw_dma_write_command_block(priv, index,
2818 &priv->sram_desc.cb_list[index]);
2819
2820 /* Enable the DMA in the CSR register */
2821 ipw_clear_bit(priv, IPW_RESET_REG,
2822 IPW_RESET_REG_MASTER_DISABLED |
2823 IPW_RESET_REG_STOP_MASTER);
2824
2825 /* Set the Start bit. */
2826 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
2827 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2828
2829 IPW_DEBUG_FW("<< :\n");
2830 return 0;
2831 }
2832
2833 static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
2834 {
2835 u32 address;
2836 u32 register_value = 0;
2837 u32 cb_fields_address = 0;
2838
2839 IPW_DEBUG_FW(">> :\n");
2840 address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2841 IPW_DEBUG_FW_INFO("Current CB is 0x%x\n", address);
2842
2843 /* Read the DMA Controlor register */
2844 register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL);
2845 IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x\n", register_value);
2846
2847 /* Print the CB values */
2848 cb_fields_address = address;
2849 register_value = ipw_read_reg32(priv, cb_fields_address);
2850 IPW_DEBUG_FW_INFO("Current CB Control Field is 0x%x\n", register_value);
2851
2852 cb_fields_address += sizeof(u32);
2853 register_value = ipw_read_reg32(priv, cb_fields_address);
2854 IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x\n", register_value);
2855
2856 cb_fields_address += sizeof(u32);
2857 register_value = ipw_read_reg32(priv, cb_fields_address);
2858 IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x\n",
2859 register_value);
2860
2861 cb_fields_address += sizeof(u32);
2862 register_value = ipw_read_reg32(priv, cb_fields_address);
2863 IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x\n", register_value);
2864
2865 IPW_DEBUG_FW(">> :\n");
2866 }
2867
2868 static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
2869 {
2870 u32 current_cb_address = 0;
2871 u32 current_cb_index = 0;
2872
2873 IPW_DEBUG_FW("<< :\n");
2874 current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2875
2876 current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) /
2877 sizeof(struct command_block);
2878
2879 IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X\n",
2880 current_cb_index, current_cb_address);
2881
2882 IPW_DEBUG_FW(">> :\n");
2883 return current_cb_index;
2884
2885 }
2886
2887 static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
2888 u32 src_address,
2889 u32 dest_address,
2890 u32 length,
2891 int interrupt_enabled, int is_last)
2892 {
2893
2894 u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
2895 CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
2896 CB_DEST_SIZE_LONG;
2897 struct command_block *cb;
2898 u32 last_cb_element = 0;
2899
2900 IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
2901 src_address, dest_address, length);
2902
2903 if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
2904 return -1;
2905
2906 last_cb_element = priv->sram_desc.last_cb_index;
2907 cb = &priv->sram_desc.cb_list[last_cb_element];
2908 priv->sram_desc.last_cb_index++;
2909
2910 /* Calculate the new CB control word */
2911 if (interrupt_enabled)
2912 control |= CB_INT_ENABLED;
2913
2914 if (is_last)
2915 control |= CB_LAST_VALID;
2916
2917 control |= length;
2918
2919 /* Calculate the CB Element's checksum value */
2920 cb->status = control ^ src_address ^ dest_address;
2921
2922 /* Copy the Source and Destination addresses */
2923 cb->dest_addr = dest_address;
2924 cb->source_addr = src_address;
2925
2926 /* Copy the Control Word last */
2927 cb->control = control;
2928
2929 return 0;
2930 }
2931
2932 static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address,
2933 int nr, u32 dest_address, u32 len)
2934 {
2935 int ret, i;
2936 u32 size;
2937
2938 IPW_DEBUG_FW(">>\n");
2939 IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n",
2940 nr, dest_address, len);
2941
2942 for (i = 0; i < nr; i++) {
2943 size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH);
2944 ret = ipw_fw_dma_add_command_block(priv, src_address[i],
2945 dest_address +
2946 i * CB_MAX_LENGTH, size,
2947 0, 0);
2948 if (ret) {
2949 IPW_DEBUG_FW_INFO(": Failed\n");
2950 return -1;
2951 } else
2952 IPW_DEBUG_FW_INFO(": Added new cb\n");
2953 }
2954
2955 IPW_DEBUG_FW("<<\n");
2956 return 0;
2957 }
2958
2959 static int ipw_fw_dma_wait(struct ipw_priv *priv)
2960 {
2961 u32 current_index = 0, previous_index;
2962 u32 watchdog = 0;
2963
2964 IPW_DEBUG_FW(">> :\n");
2965
2966 current_index = ipw_fw_dma_command_block_index(priv);
2967 IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n",
2968 (int)priv->sram_desc.last_cb_index);
2969
2970 while (current_index < priv->sram_desc.last_cb_index) {
2971 udelay(50);
2972 previous_index = current_index;
2973 current_index = ipw_fw_dma_command_block_index(priv);
2974
2975 if (previous_index < current_index) {
2976 watchdog = 0;
2977 continue;
2978 }
2979 if (++watchdog > 400) {
2980 IPW_DEBUG_FW_INFO("Timeout\n");
2981 ipw_fw_dma_dump_command_block(priv);
2982 ipw_fw_dma_abort(priv);
2983 return -1;
2984 }
2985 }
2986
2987 ipw_fw_dma_abort(priv);
2988
2989 /*Disable the DMA in the CSR register */
2990 ipw_set_bit(priv, IPW_RESET_REG,
2991 IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER);
2992
2993 IPW_DEBUG_FW("<< dmaWaitSync\n");
2994 return 0;
2995 }
2996
2997 static void ipw_remove_current_network(struct ipw_priv *priv)
2998 {
2999 struct list_head *element, *safe;
3000 struct libipw_network *network = NULL;
3001 unsigned long flags;
3002
3003 spin_lock_irqsave(&priv->ieee->lock, flags);
3004 list_for_each_safe(element, safe, &priv->ieee->network_list) {
3005 network = list_entry(element, struct libipw_network, list);
3006 if (ether_addr_equal(network->bssid, priv->bssid)) {
3007 list_del(element);
3008 list_add_tail(&network->list,
3009 &priv->ieee->network_free_list);
3010 }
3011 }
3012 spin_unlock_irqrestore(&priv->ieee->lock, flags);
3013 }
3014
3015 /**
3016 * Check that card is still alive.
3017 * Reads debug register from domain0.
3018 * If card is present, pre-defined value should
3019 * be found there.
3020 *
3021 * @param priv
3022 * @return 1 if card is present, 0 otherwise
3023 */
3024 static inline int ipw_alive(struct ipw_priv *priv)
3025 {
3026 return ipw_read32(priv, 0x90) == 0xd55555d5;
3027 }
3028
3029 /* timeout in msec, attempted in 10-msec quanta */
3030 static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
3031 int timeout)
3032 {
3033 int i = 0;
3034
3035 do {
3036 if ((ipw_read32(priv, addr) & mask) == mask)
3037 return i;
3038 mdelay(10);
3039 i += 10;
3040 } while (i < timeout);
3041
3042 return -ETIME;
3043 }
3044
3045 /* These functions load the firmware and micro code for the operation of
3046 * the ipw hardware. It assumes the buffer has all the bits for the
3047 * image and the caller is handling the memory allocation and clean up.
3048 */
3049
3050 static int ipw_stop_master(struct ipw_priv *priv)
3051 {
3052 int rc;
3053
3054 IPW_DEBUG_TRACE(">>\n");
3055 /* stop master. typical delay - 0 */
3056 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3057
3058 /* timeout is in msec, polled in 10-msec quanta */
3059 rc = ipw_poll_bit(priv, IPW_RESET_REG,
3060 IPW_RESET_REG_MASTER_DISABLED, 100);
3061 if (rc < 0) {
3062 IPW_ERROR("wait for stop master failed after 100ms\n");
3063 return -1;
3064 }
3065
3066 IPW_DEBUG_INFO("stop master %dms\n", rc);
3067
3068 return rc;
3069 }
3070
3071 static void ipw_arc_release(struct ipw_priv *priv)
3072 {
3073 IPW_DEBUG_TRACE(">>\n");
3074 mdelay(5);
3075
3076 ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3077
3078 /* no one knows timing, for safety add some delay */
3079 mdelay(5);
3080 }
3081
3082 struct fw_chunk {
3083 __le32 address;
3084 __le32 length;
3085 };
3086
3087 static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
3088 {
3089 int rc = 0, i, addr;
3090 u8 cr = 0;
3091 __le16 *image;
3092
3093 image = (__le16 *) data;
3094
3095 IPW_DEBUG_TRACE(">>\n");
3096
3097 rc = ipw_stop_master(priv);
3098
3099 if (rc < 0)
3100 return rc;
3101
3102 for (addr = IPW_SHARED_LOWER_BOUND;
3103 addr < IPW_REGISTER_DOMAIN1_END; addr += 4) {
3104 ipw_write32(priv, addr, 0);
3105 }
3106
3107 /* no ucode (yet) */
3108 memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
3109 /* destroy DMA queues */
3110 /* reset sequence */
3111
3112 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON);
3113 ipw_arc_release(priv);
3114 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF);
3115 mdelay(1);
3116
3117 /* reset PHY */
3118 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN);
3119 mdelay(1);
3120
3121 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0);
3122 mdelay(1);
3123
3124 /* enable ucode store */
3125 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0);
3126 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS);
3127 mdelay(1);
3128
3129 /* write ucode */
3130 /**
3131 * @bug
3132 * Do NOT set indirect address register once and then
3133 * store data to indirect data register in the loop.
3134 * It seems very reasonable, but in this case DINO do not
3135 * accept ucode. It is essential to set address each time.
3136 */
3137 /* load new ipw uCode */
3138 for (i = 0; i < len / 2; i++)
3139 ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE,
3140 le16_to_cpu(image[i]));
3141
3142 /* enable DINO */
3143 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3144 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM);
3145
3146 /* this is where the igx / win driver deveates from the VAP driver. */
3147
3148 /* wait for alive response */
3149 for (i = 0; i < 100; i++) {
3150 /* poll for incoming data */
3151 cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS);
3152 if (cr & DINO_RXFIFO_DATA)
3153 break;
3154 mdelay(1);
3155 }
3156
3157 if (cr & DINO_RXFIFO_DATA) {
3158 /* alive_command_responce size is NOT multiple of 4 */
3159 __le32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
3160
3161 for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
3162 response_buffer[i] =
3163 cpu_to_le32(ipw_read_reg32(priv,
3164 IPW_BASEBAND_RX_FIFO_READ));
3165 memcpy(&priv->dino_alive, response_buffer,
3166 sizeof(priv->dino_alive));
3167 if (priv->dino_alive.alive_command == 1
3168 && priv->dino_alive.ucode_valid == 1) {
3169 rc = 0;
3170 IPW_DEBUG_INFO
3171 ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
3172 "of %02d/%02d/%02d %02d:%02d\n",
3173 priv->dino_alive.software_revision,
3174 priv->dino_alive.software_revision,
3175 priv->dino_alive.device_identifier,
3176 priv->dino_alive.device_identifier,
3177 priv->dino_alive.time_stamp[0],
3178 priv->dino_alive.time_stamp[1],
3179 priv->dino_alive.time_stamp[2],
3180 priv->dino_alive.time_stamp[3],
3181 priv->dino_alive.time_stamp[4]);
3182 } else {
3183 IPW_DEBUG_INFO("Microcode is not alive\n");
3184 rc = -EINVAL;
3185 }
3186 } else {
3187 IPW_DEBUG_INFO("No alive response from DINO\n");
3188 rc = -ETIME;
3189 }
3190
3191 /* disable DINO, otherwise for some reason
3192 firmware have problem getting alive resp. */
3193 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3194
3195 return rc;
3196 }
3197
3198 static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
3199 {
3200 int ret = -1;
3201 int offset = 0;
3202 struct fw_chunk *chunk;
3203 int total_nr = 0;
3204 int i;
3205 struct dma_pool *pool;
3206 void **virts;
3207 dma_addr_t *phys;
3208
3209 IPW_DEBUG_TRACE("<< :\n");
3210
3211 virts = kmalloc(sizeof(void *) * CB_NUMBER_OF_ELEMENTS_SMALL,
3212 GFP_KERNEL);
3213 if (!virts)
3214 return -ENOMEM;
3215
3216 phys = kmalloc(sizeof(dma_addr_t) * CB_NUMBER_OF_ELEMENTS_SMALL,
3217 GFP_KERNEL);
3218 if (!phys) {
3219 kfree(virts);
3220 return -ENOMEM;
3221 }
3222 pool = dma_pool_create("ipw2200", &priv->pci_dev->dev, CB_MAX_LENGTH, 0,
3223 0);
3224 if (!pool) {
3225 IPW_ERROR("dma_pool_create failed\n");
3226 kfree(phys);
3227 kfree(virts);
3228 return -ENOMEM;
3229 }
3230
3231 /* Start the Dma */
3232 ret = ipw_fw_dma_enable(priv);
3233
3234 /* the DMA is already ready this would be a bug. */
3235 BUG_ON(priv->sram_desc.last_cb_index > 0);
3236
3237 do {
3238 u32 chunk_len;
3239 u8 *start;
3240 int size;
3241 int nr = 0;
3242
3243 chunk = (struct fw_chunk *)(data + offset);
3244 offset += sizeof(struct fw_chunk);
3245 chunk_len = le32_to_cpu(chunk->length);
3246 start = data + offset;
3247
3248 nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH;
3249 for (i = 0; i < nr; i++) {
3250 virts[total_nr] = dma_pool_alloc(pool, GFP_KERNEL,
3251 &phys[total_nr]);
3252 if (!virts[total_nr]) {
3253 ret = -ENOMEM;
3254 goto out;
3255 }
3256 size = min_t(u32, chunk_len - i * CB_MAX_LENGTH,
3257 CB_MAX_LENGTH);
3258 memcpy(virts[total_nr], start, size);
3259 start += size;
3260 total_nr++;
3261 /* We don't support fw chunk larger than 64*8K */
3262 BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL);
3263 }
3264
3265 /* build DMA packet and queue up for sending */
3266 /* dma to chunk->address, the chunk->length bytes from data +
3267 * offeset*/
3268 /* Dma loading */
3269 ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr],
3270 nr, le32_to_cpu(chunk->address),
3271 chunk_len);
3272 if (ret) {
3273 IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
3274 goto out;
3275 }
3276
3277 offset += chunk_len;
3278 } while (offset < len);
3279
3280 /* Run the DMA and wait for the answer */
3281 ret = ipw_fw_dma_kick(priv);
3282 if (ret) {
3283 IPW_ERROR("dmaKick Failed\n");
3284 goto out;
3285 }
3286
3287 ret = ipw_fw_dma_wait(priv);
3288 if (ret) {
3289 IPW_ERROR("dmaWaitSync Failed\n");
3290 goto out;
3291 }
3292 out:
3293 for (i = 0; i < total_nr; i++)
3294 dma_pool_free(pool, virts[i], phys[i]);
3295
3296 dma_pool_destroy(pool);
3297 kfree(phys);
3298 kfree(virts);
3299
3300 return ret;
3301 }
3302
3303 /* stop nic */
3304 static int ipw_stop_nic(struct ipw_priv *priv)
3305 {
3306 int rc = 0;
3307
3308 /* stop */
3309 ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3310
3311 rc = ipw_poll_bit(priv, IPW_RESET_REG,
3312 IPW_RESET_REG_MASTER_DISABLED, 500);
3313 if (rc < 0) {
3314 IPW_ERROR("wait for reg master disabled failed after 500ms\n");
3315 return rc;
3316 }
3317
3318 ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3319
3320 return rc;
3321 }
3322
3323 static void ipw_start_nic(struct ipw_priv *priv)
3324 {
3325 IPW_DEBUG_TRACE(">>\n");
3326
3327 /* prvHwStartNic release ARC */
3328 ipw_clear_bit(priv, IPW_RESET_REG,
3329 IPW_RESET_REG_MASTER_DISABLED |
3330 IPW_RESET_REG_STOP_MASTER |
3331 CBD_RESET_REG_PRINCETON_RESET);
3332
3333 /* enable power management */
3334 ipw_set_bit(priv, IPW_GP_CNTRL_RW,
3335 IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
3336
3337 IPW_DEBUG_TRACE("<<\n");
3338 }
3339
3340 static int ipw_init_nic(struct ipw_priv *priv)
3341 {
3342 int rc;
3343
3344 IPW_DEBUG_TRACE(">>\n");
3345 /* reset */
3346 /*prvHwInitNic */
3347 /* set "initialization complete" bit to move adapter to D0 state */
3348 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3349
3350 /* low-level PLL activation */
3351 ipw_write32(priv, IPW_READ_INT_REGISTER,
3352 IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
3353
3354 /* wait for clock stabilization */
3355 rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW,
3356 IPW_GP_CNTRL_BIT_CLOCK_READY, 250);
3357 if (rc < 0)
3358 IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
3359
3360 /* assert SW reset */
3361 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET);
3362
3363 udelay(10);
3364
3365 /* set "initialization complete" bit to move adapter to D0 state */
3366 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3367
3368 IPW_DEBUG_TRACE(">>\n");
3369 return 0;
3370 }
3371
3372 /* Call this function from process context, it will sleep in request_firmware.
3373 * Probe is an ok place to call this from.
3374 */
3375 static int ipw_reset_nic(struct ipw_priv *priv)
3376 {
3377 int rc = 0;
3378 unsigned long flags;
3379
3380 IPW_DEBUG_TRACE(">>\n");
3381
3382 rc = ipw_init_nic(priv);
3383
3384 spin_lock_irqsave(&priv->lock, flags);
3385 /* Clear the 'host command active' bit... */
3386 priv->status &= ~STATUS_HCMD_ACTIVE;
3387 wake_up_interruptible(&priv->wait_command_queue);
3388 priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
3389 wake_up_interruptible(&priv->wait_state);
3390 spin_unlock_irqrestore(&priv->lock, flags);
3391
3392 IPW_DEBUG_TRACE("<<\n");
3393 return rc;
3394 }
3395
3396
3397 struct ipw_fw {
3398 __le32 ver;
3399 __le32 boot_size;
3400 __le32 ucode_size;
3401 __le32 fw_size;
3402 u8 data[0];
3403 };
3404
3405 static int ipw_get_fw(struct ipw_priv *priv,
3406 const struct firmware **raw, const char *name)
3407 {
3408 struct ipw_fw *fw;
3409 int rc;
3410
3411 /* ask firmware_class module to get the boot firmware off disk */
3412 rc = request_firmware(raw, name, &priv->pci_dev->dev);
3413 if (rc < 0) {
3414 IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc);
3415 return rc;
3416 }
3417
3418 if ((*raw)->size < sizeof(*fw)) {
3419 IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size);
3420 return -EINVAL;
3421 }
3422
3423 fw = (void *)(*raw)->data;
3424
3425 if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) +
3426 le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) {
3427 IPW_ERROR("%s is too small or corrupt (%zd)\n",
3428 name, (*raw)->size);
3429 return -EINVAL;
3430 }
3431
3432 IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n",
3433 name,
3434 le32_to_cpu(fw->ver) >> 16,
3435 le32_to_cpu(fw->ver) & 0xff,
3436 (*raw)->size - sizeof(*fw));
3437 return 0;
3438 }
3439
3440 #define IPW_RX_BUF_SIZE (3000)
3441
3442 static void ipw_rx_queue_reset(struct ipw_priv *priv,
3443 struct ipw_rx_queue *rxq)
3444 {
3445 unsigned long flags;
3446 int i;
3447
3448 spin_lock_irqsave(&rxq->lock, flags);
3449
3450 INIT_LIST_HEAD(&rxq->rx_free);
3451 INIT_LIST_HEAD(&rxq->rx_used);
3452
3453 /* Fill the rx_used queue with _all_ of the Rx buffers */
3454 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
3455 /* In the reset function, these buffers may have been allocated
3456 * to an SKB, so we need to unmap and free potential storage */
3457 if (rxq->pool[i].skb != NULL) {
3458 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
3459 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3460 dev_kfree_skb(rxq->pool[i].skb);
3461 rxq->pool[i].skb = NULL;
3462 }
3463 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3464 }
3465
3466 /* Set us so that we have processed and used all buffers, but have
3467 * not restocked the Rx queue with fresh buffers */
3468 rxq->read = rxq->write = 0;
3469 rxq->free_count = 0;
3470 spin_unlock_irqrestore(&rxq->lock, flags);
3471 }
3472
3473 #ifdef CONFIG_PM
3474 static int fw_loaded = 0;
3475 static const struct firmware *raw = NULL;
3476
3477 static void free_firmware(void)
3478 {
3479 if (fw_loaded) {
3480 release_firmware(raw);
3481 raw = NULL;
3482 fw_loaded = 0;
3483 }
3484 }
3485 #else
3486 #define free_firmware() do {} while (0)
3487 #endif
3488
3489 static int ipw_load(struct ipw_priv *priv)
3490 {
3491 #ifndef CONFIG_PM
3492 const struct firmware *raw = NULL;
3493 #endif
3494 struct ipw_fw *fw;
3495 u8 *boot_img, *ucode_img, *fw_img;
3496 u8 *name = NULL;
3497 int rc = 0, retries = 3;
3498
3499 switch (priv->ieee->iw_mode) {
3500 case IW_MODE_ADHOC:
3501 name = "ipw2200-ibss.fw";
3502 break;
3503 #ifdef CONFIG_IPW2200_MONITOR
3504 case IW_MODE_MONITOR:
3505 name = "ipw2200-sniffer.fw";
3506 break;
3507 #endif
3508 case IW_MODE_INFRA:
3509 name = "ipw2200-bss.fw";
3510 break;
3511 }
3512
3513 if (!name) {
3514 rc = -EINVAL;
3515 goto error;
3516 }
3517
3518 #ifdef CONFIG_PM
3519 if (!fw_loaded) {
3520 #endif
3521 rc = ipw_get_fw(priv, &raw, name);
3522 if (rc < 0)
3523 goto error;
3524 #ifdef CONFIG_PM
3525 }
3526 #endif
3527
3528 fw = (void *)raw->data;
3529 boot_img = &fw->data[0];
3530 ucode_img = &fw->data[le32_to_cpu(fw->boot_size)];
3531 fw_img = &fw->data[le32_to_cpu(fw->boot_size) +
3532 le32_to_cpu(fw->ucode_size)];
3533
3534 if (!priv->rxq)
3535 priv->rxq = ipw_rx_queue_alloc(priv);
3536 else
3537 ipw_rx_queue_reset(priv, priv->rxq);
3538 if (!priv->rxq) {
3539 IPW_ERROR("Unable to initialize Rx queue\n");
3540 rc = -ENOMEM;
3541 goto error;
3542 }
3543
3544 retry:
3545 /* Ensure interrupts are disabled */
3546 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3547 priv->status &= ~STATUS_INT_ENABLED;
3548
3549 /* ack pending interrupts */
3550 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3551
3552 ipw_stop_nic(priv);
3553
3554 rc = ipw_reset_nic(priv);
3555 if (rc < 0) {
3556 IPW_ERROR("Unable to reset NIC\n");
3557 goto error;
3558 }
3559
3560 ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND,
3561 IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND);
3562
3563 /* DMA the initial boot firmware into the device */
3564 rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size));
3565 if (rc < 0) {
3566 IPW_ERROR("Unable to load boot firmware: %d\n", rc);
3567 goto error;
3568 }
3569
3570 /* kick start the device */
3571 ipw_start_nic(priv);
3572
3573 /* wait for the device to finish its initial startup sequence */
3574 rc = ipw_poll_bit(priv, IPW_INTA_RW,
3575 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3576 if (rc < 0) {
3577 IPW_ERROR("device failed to boot initial fw image\n");
3578 goto error;
3579 }
3580 IPW_DEBUG_INFO("initial device response after %dms\n", rc);
3581
3582 /* ack fw init done interrupt */
3583 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3584
3585 /* DMA the ucode into the device */
3586 rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size));
3587 if (rc < 0) {
3588 IPW_ERROR("Unable to load ucode: %d\n", rc);
3589 goto error;
3590 }
3591
3592 /* stop nic */
3593 ipw_stop_nic(priv);
3594
3595 /* DMA bss firmware into the device */
3596 rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size));
3597 if (rc < 0) {
3598 IPW_ERROR("Unable to load firmware: %d\n", rc);
3599 goto error;
3600 }
3601 #ifdef CONFIG_PM
3602 fw_loaded = 1;
3603 #endif
3604
3605 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
3606
3607 rc = ipw_queue_reset(priv);
3608 if (rc < 0) {
3609 IPW_ERROR("Unable to initialize queues\n");
3610 goto error;
3611 }
3612
3613 /* Ensure interrupts are disabled */
3614 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3615 /* ack pending interrupts */
3616 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3617
3618 /* kick start the device */
3619 ipw_start_nic(priv);
3620
3621 if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) {
3622 if (retries > 0) {
3623 IPW_WARNING("Parity error. Retrying init.\n");
3624 retries--;
3625 goto retry;
3626 }
3627
3628 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
3629 rc = -EIO;
3630 goto error;
3631 }
3632
3633 /* wait for the device */
3634 rc = ipw_poll_bit(priv, IPW_INTA_RW,
3635 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3636 if (rc < 0) {
3637 IPW_ERROR("device failed to start within 500ms\n");
3638 goto error;
3639 }
3640 IPW_DEBUG_INFO("device response after %dms\n", rc);
3641
3642 /* ack fw init done interrupt */
3643 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3644
3645 /* read eeprom data */
3646 priv->eeprom_delay = 1;
3647 ipw_read_eeprom(priv);
3648 /* initialize the eeprom region of sram */
3649 ipw_eeprom_init_sram(priv);
3650
3651 /* enable interrupts */
3652 ipw_enable_interrupts(priv);
3653
3654 /* Ensure our queue has valid packets */
3655 ipw_rx_queue_replenish(priv);
3656
3657 ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read);
3658
3659 /* ack pending interrupts */
3660 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3661
3662 #ifndef CONFIG_PM
3663 release_firmware(raw);
3664 #endif
3665 return 0;
3666
3667 error:
3668 if (priv->rxq) {
3669 ipw_rx_queue_free(priv, priv->rxq);
3670 priv->rxq = NULL;
3671 }
3672 ipw_tx_queue_free(priv);
3673 release_firmware(raw);
3674 #ifdef CONFIG_PM
3675 fw_loaded = 0;
3676 raw = NULL;
3677 #endif
3678
3679 return rc;
3680 }
3681
3682 /**
3683 * DMA services
3684 *
3685 * Theory of operation
3686 *
3687 * A queue is a circular buffers with 'Read' and 'Write' pointers.
3688 * 2 empty entries always kept in the buffer to protect from overflow.
3689 *
3690 * For Tx queue, there are low mark and high mark limits. If, after queuing
3691 * the packet for Tx, free space become < low mark, Tx queue stopped. When
3692 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
3693 * Tx queue resumed.
3694 *
3695 * The IPW operates with six queues, one receive queue in the device's
3696 * sram, one transmit queue for sending commands to the device firmware,
3697 * and four transmit queues for data.
3698 *
3699 * The four transmit queues allow for performing quality of service (qos)
3700 * transmissions as per the 802.11 protocol. Currently Linux does not
3701 * provide a mechanism to the user for utilizing prioritized queues, so
3702 * we only utilize the first data transmit queue (queue1).
3703 */
3704
3705 /**
3706 * Driver allocates buffers of this size for Rx
3707 */
3708
3709 /**
3710 * ipw_rx_queue_space - Return number of free slots available in queue.
3711 */
3712 static int ipw_rx_queue_space(const struct ipw_rx_queue *q)
3713 {
3714 int s = q->read - q->write;
3715 if (s <= 0)
3716 s += RX_QUEUE_SIZE;
3717 /* keep some buffer to not confuse full and empty queue */
3718 s -= 2;
3719 if (s < 0)
3720 s = 0;
3721 return s;
3722 }
3723
3724 static inline int ipw_tx_queue_space(const struct clx2_queue *q)
3725 {
3726 int s = q->last_used - q->first_empty;
3727 if (s <= 0)
3728 s += q->n_bd;
3729 s -= 2; /* keep some reserve to not confuse empty and full situations */
3730 if (s < 0)
3731 s = 0;
3732 return s;
3733 }
3734
3735 static inline int ipw_queue_inc_wrap(int index, int n_bd)
3736 {
3737 return (++index == n_bd) ? 0 : index;
3738 }
3739
3740 /**
3741 * Initialize common DMA queue structure
3742 *
3743 * @param q queue to init
3744 * @param count Number of BD's to allocate. Should be power of 2
3745 * @param read_register Address for 'read' register
3746 * (not offset within BAR, full address)
3747 * @param write_register Address for 'write' register
3748 * (not offset within BAR, full address)
3749 * @param base_register Address for 'base' register
3750 * (not offset within BAR, full address)
3751 * @param size Address for 'size' register
3752 * (not offset within BAR, full address)
3753 */
3754 static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
3755 int count, u32 read, u32 write, u32 base, u32 size)
3756 {
3757 q->n_bd = count;
3758
3759 q->low_mark = q->n_bd / 4;
3760 if (q->low_mark < 4)
3761 q->low_mark = 4;
3762
3763 q->high_mark = q->n_bd / 8;
3764 if (q->high_mark < 2)
3765 q->high_mark = 2;
3766
3767 q->first_empty = q->last_used = 0;
3768 q->reg_r = read;
3769 q->reg_w = write;
3770
3771 ipw_write32(priv, base, q->dma_addr);
3772 ipw_write32(priv, size, count);
3773 ipw_write32(priv, read, 0);
3774 ipw_write32(priv, write, 0);
3775
3776 _ipw_read32(priv, 0x90);
3777 }
3778
3779 static int ipw_queue_tx_init(struct ipw_priv *priv,
3780 struct clx2_tx_queue *q,
3781 int count, u32 read, u32 write, u32 base, u32 size)
3782 {
3783 struct pci_dev *dev = priv->pci_dev;
3784
3785 q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
3786 if (!q->txb) {
3787 IPW_ERROR("vmalloc for auxiliary BD structures failed\n");
3788 return -ENOMEM;
3789 }
3790
3791 q->bd =
3792 pci_alloc_consistent(dev, sizeof(q->bd[0]) * count, &q->q.dma_addr);
3793 if (!q->bd) {
3794 IPW_ERROR("pci_alloc_consistent(%zd) failed\n",
3795 sizeof(q->bd[0]) * count);
3796 kfree(q->txb);
3797 q->txb = NULL;
3798 return -ENOMEM;
3799 }
3800
3801 ipw_queue_init(priv, &q->q, count, read, write, base, size);
3802 return 0;
3803 }
3804
3805 /**
3806 * Free one TFD, those at index [txq->q.last_used].
3807 * Do NOT advance any indexes
3808 *
3809 * @param dev
3810 * @param txq
3811 */
3812 static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
3813 struct clx2_tx_queue *txq)
3814 {
3815 struct tfd_frame *bd = &txq->bd[txq->q.last_used];
3816 struct pci_dev *dev = priv->pci_dev;
3817 int i;
3818
3819 /* classify bd */
3820 if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
3821 /* nothing to cleanup after for host commands */
3822 return;
3823
3824 /* sanity check */
3825 if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) {
3826 IPW_ERROR("Too many chunks: %i\n",
3827 le32_to_cpu(bd->u.data.num_chunks));
3828 /** @todo issue fatal error, it is quite serious situation */
3829 return;
3830 }
3831
3832 /* unmap chunks if any */
3833 for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) {
3834 pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]),
3835 le16_to_cpu(bd->u.data.chunk_len[i]),
3836 PCI_DMA_TODEVICE);
3837 if (txq->txb[txq->q.last_used]) {
3838 libipw_txb_free(txq->txb[txq->q.last_used]);
3839 txq->txb[txq->q.last_used] = NULL;
3840 }
3841 }
3842 }
3843
3844 /**
3845 * Deallocate DMA queue.
3846 *
3847 * Empty queue by removing and destroying all BD's.
3848 * Free all buffers.
3849 *
3850 * @param dev
3851 * @param q
3852 */
3853 static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq)
3854 {
3855 struct clx2_queue *q = &txq->q;
3856 struct pci_dev *dev = priv->pci_dev;
3857
3858 if (q->n_bd == 0)
3859 return;
3860
3861 /* first, empty all BD's */
3862 for (; q->first_empty != q->last_used;
3863 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
3864 ipw_queue_tx_free_tfd(priv, txq);
3865 }
3866
3867 /* free buffers belonging to queue itself */
3868 pci_free_consistent(dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd,
3869 q->dma_addr);
3870 kfree(txq->txb);
3871
3872 /* 0 fill whole structure */
3873 memset(txq, 0, sizeof(*txq));
3874 }
3875
3876 /**
3877 * Destroy all DMA queues and structures
3878 *
3879 * @param priv
3880 */
3881 static void ipw_tx_queue_free(struct ipw_priv *priv)
3882 {
3883 /* Tx CMD queue */
3884 ipw_queue_tx_free(priv, &priv->txq_cmd);
3885
3886 /* Tx queues */
3887 ipw_queue_tx_free(priv, &priv->txq[0]);
3888 ipw_queue_tx_free(priv, &priv->txq[1]);
3889 ipw_queue_tx_free(priv, &priv->txq[2]);
3890 ipw_queue_tx_free(priv, &priv->txq[3]);
3891 }
3892
3893 static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid)
3894 {
3895 /* First 3 bytes are manufacturer */
3896 bssid[0] = priv->mac_addr[0];
3897 bssid[1] = priv->mac_addr[1];
3898 bssid[2] = priv->mac_addr[2];
3899
3900 /* Last bytes are random */
3901 get_random_bytes(&bssid[3], ETH_ALEN - 3);
3902
3903 bssid[0] &= 0xfe; /* clear multicast bit */
3904 bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */
3905 }
3906
3907 static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid)
3908 {
3909 struct ipw_station_entry entry;
3910 int i;
3911
3912 for (i = 0; i < priv->num_stations; i++) {
3913 if (ether_addr_equal(priv->stations[i], bssid)) {
3914 /* Another node is active in network */
3915 priv->missed_adhoc_beacons = 0;
3916 if (!(priv->config & CFG_STATIC_CHANNEL))
3917 /* when other nodes drop out, we drop out */
3918 priv->config &= ~CFG_ADHOC_PERSIST;
3919
3920 return i;
3921 }
3922 }
3923
3924 if (i == MAX_STATIONS)
3925 return IPW_INVALID_STATION;
3926
3927 IPW_DEBUG_SCAN("Adding AdHoc station: %pM\n", bssid);
3928
3929 entry.reserved = 0;
3930 entry.support_mode = 0;
3931 memcpy(entry.mac_addr, bssid, ETH_ALEN);
3932 memcpy(priv->stations[i], bssid, ETH_ALEN);
3933 ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
3934 &entry, sizeof(entry));
3935 priv->num_stations++;
3936
3937 return i;
3938 }
3939
3940 static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid)
3941 {
3942 int i;
3943
3944 for (i = 0; i < priv->num_stations; i++)
3945 if (ether_addr_equal(priv->stations[i], bssid))
3946 return i;
3947
3948 return IPW_INVALID_STATION;
3949 }
3950
3951 static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
3952 {
3953 int err;
3954
3955 if (priv->status & STATUS_ASSOCIATING) {
3956 IPW_DEBUG_ASSOC("Disassociating while associating.\n");
3957 schedule_work(&priv->disassociate);
3958 return;
3959 }
3960
3961 if (!(priv->status & STATUS_ASSOCIATED)) {
3962 IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
3963 return;
3964 }
3965
3966 IPW_DEBUG_ASSOC("Disassociation attempt from %pM "
3967 "on channel %d.\n",
3968 priv->assoc_request.bssid,
3969 priv->assoc_request.channel);
3970
3971 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
3972 priv->status |= STATUS_DISASSOCIATING;
3973
3974 if (quiet)
3975 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
3976 else
3977 priv->assoc_request.assoc_type = HC_DISASSOCIATE;
3978
3979 err = ipw_send_associate(priv, &priv->assoc_request);
3980 if (err) {
3981 IPW_DEBUG_HC("Attempt to send [dis]associate command "
3982 "failed.\n");
3983 return;
3984 }
3985
3986 }
3987
3988 static int ipw_disassociate(void *data)
3989 {
3990 struct ipw_priv *priv = data;
3991 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
3992 return 0;
3993 ipw_send_disassociate(data, 0);
3994 netif_carrier_off(priv->net_dev);
3995 return 1;
3996 }
3997
3998 static void ipw_bg_disassociate(struct work_struct *work)
3999 {
4000 struct ipw_priv *priv =
4001 container_of(work, struct ipw_priv, disassociate);
4002 mutex_lock(&priv->mutex);
4003 ipw_disassociate(priv);
4004 mutex_unlock(&priv->mutex);
4005 }
4006
4007 static void ipw_system_config(struct work_struct *work)
4008 {
4009 struct ipw_priv *priv =
4010 container_of(work, struct ipw_priv, system_config);
4011
4012 #ifdef CONFIG_IPW2200_PROMISCUOUS
4013 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
4014 priv->sys_config.accept_all_data_frames = 1;
4015 priv->sys_config.accept_non_directed_frames = 1;
4016 priv->sys_config.accept_all_mgmt_bcpr = 1;
4017 priv->sys_config.accept_all_mgmt_frames = 1;
4018 }
4019 #endif
4020
4021 ipw_send_system_config(priv);
4022 }
4023
4024 struct ipw_status_code {
4025 u16 status;
4026 const char *reason;
4027 };
4028
4029 static const struct ipw_status_code ipw_status_codes[] = {
4030 {0x00, "Successful"},
4031 {0x01, "Unspecified failure"},
4032 {0x0A, "Cannot support all requested capabilities in the "
4033 "Capability information field"},
4034 {0x0B, "Reassociation denied due to inability to confirm that "
4035 "association exists"},
4036 {0x0C, "Association denied due to reason outside the scope of this "
4037 "standard"},
4038 {0x0D,
4039 "Responding station does not support the specified authentication "
4040 "algorithm"},
4041 {0x0E,
4042 "Received an Authentication frame with authentication sequence "
4043 "transaction sequence number out of expected sequence"},
4044 {0x0F, "Authentication rejected because of challenge failure"},
4045 {0x10, "Authentication rejected due to timeout waiting for next "
4046 "frame in sequence"},
4047 {0x11, "Association denied because AP is unable to handle additional "
4048 "associated stations"},
4049 {0x12,
4050 "Association denied due to requesting station not supporting all "
4051 "of the datarates in the BSSBasicServiceSet Parameter"},
4052 {0x13,
4053 "Association denied due to requesting station not supporting "
4054 "short preamble operation"},
4055 {0x14,
4056 "Association denied due to requesting station not supporting "
4057 "PBCC encoding"},
4058 {0x15,
4059 "Association denied due to requesting station not supporting "
4060 "channel agility"},
4061 {0x19,
4062 "Association denied due to requesting station not supporting "
4063 "short slot operation"},
4064 {0x1A,
4065 "Association denied due to requesting station not supporting "
4066 "DSSS-OFDM operation"},
4067 {0x28, "Invalid Information Element"},
4068 {0x29, "Group Cipher is not valid"},
4069 {0x2A, "Pairwise Cipher is not valid"},
4070 {0x2B, "AKMP is not valid"},
4071 {0x2C, "Unsupported RSN IE version"},
4072 {0x2D, "Invalid RSN IE Capabilities"},
4073 {0x2E, "Cipher suite is rejected per security policy"},
4074 };
4075
4076 static const char *ipw_get_status_code(u16 status)
4077 {
4078 int i;
4079 for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
4080 if (ipw_status_codes[i].status == (status & 0xff))
4081 return ipw_status_codes[i].reason;
4082 return "Unknown status value.";
4083 }
4084
4085 static inline void average_init(struct average *avg)
4086 {
4087 memset(avg, 0, sizeof(*avg));
4088 }
4089
4090 #define DEPTH_RSSI 8
4091 #define DEPTH_NOISE 16
4092 static s16 exponential_average(s16 prev_avg, s16 val, u8 depth)
4093 {
4094 return ((depth-1)*prev_avg + val)/depth;
4095 }
4096
4097 static void average_add(struct average *avg, s16 val)
4098 {
4099 avg->sum -= avg->entries[avg->pos];
4100 avg->sum += val;
4101 avg->entries[avg->pos++] = val;
4102 if (unlikely(avg->pos == AVG_ENTRIES)) {
4103 avg->init = 1;
4104 avg->pos = 0;
4105 }
4106 }
4107
4108 static s16 average_value(struct average *avg)
4109 {
4110 if (!unlikely(avg->init)) {
4111 if (avg->pos)
4112 return avg->sum / avg->pos;
4113 return 0;
4114 }
4115
4116 return avg->sum / AVG_ENTRIES;
4117 }
4118
4119 static void ipw_reset_stats(struct ipw_priv *priv)
4120 {
4121 u32 len = sizeof(u32);
4122
4123 priv->quality = 0;
4124
4125 average_init(&priv->average_missed_beacons);
4126 priv->exp_avg_rssi = -60;
4127 priv->exp_avg_noise = -85 + 0x100;
4128
4129 priv->last_rate = 0;
4130 priv->last_missed_beacons = 0;
4131 priv->last_rx_packets = 0;
4132 priv->last_tx_packets = 0;
4133 priv->last_tx_failures = 0;
4134
4135 /* Firmware managed, reset only when NIC is restarted, so we have to
4136 * normalize on the current value */
4137 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
4138 &priv->last_rx_err, &len);
4139 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
4140 &priv->last_tx_failures, &len);
4141
4142 /* Driver managed, reset with each association */
4143 priv->missed_adhoc_beacons = 0;
4144 priv->missed_beacons = 0;
4145 priv->tx_packets = 0;
4146 priv->rx_packets = 0;
4147
4148 }
4149
4150 static u32 ipw_get_max_rate(struct ipw_priv *priv)
4151 {
4152 u32 i = 0x80000000;
4153 u32 mask = priv->rates_mask;
4154 /* If currently associated in B mode, restrict the maximum
4155 * rate match to B rates */
4156 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
4157 mask &= LIBIPW_CCK_RATES_MASK;
4158
4159 /* TODO: Verify that the rate is supported by the current rates
4160 * list. */
4161
4162 while (i && !(mask & i))
4163 i >>= 1;
4164 switch (i) {
4165 case LIBIPW_CCK_RATE_1MB_MASK:
4166 return 1000000;
4167 case LIBIPW_CCK_RATE_2MB_MASK:
4168 return 2000000;
4169 case LIBIPW_CCK_RATE_5MB_MASK:
4170 return 5500000;
4171 case LIBIPW_OFDM_RATE_6MB_MASK:
4172 return 6000000;
4173 case LIBIPW_OFDM_RATE_9MB_MASK:
4174 return 9000000;
4175 case LIBIPW_CCK_RATE_11MB_MASK:
4176 return 11000000;
4177 case LIBIPW_OFDM_RATE_12MB_MASK:
4178 return 12000000;
4179 case LIBIPW_OFDM_RATE_18MB_MASK:
4180 return 18000000;
4181 case LIBIPW_OFDM_RATE_24MB_MASK:
4182 return 24000000;
4183 case LIBIPW_OFDM_RATE_36MB_MASK:
4184 return 36000000;
4185 case LIBIPW_OFDM_RATE_48MB_MASK:
4186 return 48000000;
4187 case LIBIPW_OFDM_RATE_54MB_MASK:
4188 return 54000000;
4189 }
4190
4191 if (priv->ieee->mode == IEEE_B)
4192 return 11000000;
4193 else
4194 return 54000000;
4195 }
4196
4197 static u32 ipw_get_current_rate(struct ipw_priv *priv)
4198 {
4199 u32 rate, len = sizeof(rate);
4200 int err;
4201
4202 if (!(priv->status & STATUS_ASSOCIATED))
4203 return 0;
4204
4205 if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
4206 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
4207 &len);
4208 if (err) {
4209 IPW_DEBUG_INFO("failed querying ordinals.\n");
4210 return 0;
4211 }
4212 } else
4213 return ipw_get_max_rate(priv);
4214
4215 switch (rate) {
4216 case IPW_TX_RATE_1MB:
4217 return 1000000;
4218 case IPW_TX_RATE_2MB:
4219 return 2000000;
4220 case IPW_TX_RATE_5MB:
4221 return 5500000;
4222 case IPW_TX_RATE_6MB:
4223 return 6000000;
4224 case IPW_TX_RATE_9MB:
4225 return 9000000;
4226 case IPW_TX_RATE_11MB:
4227 return 11000000;
4228 case IPW_TX_RATE_12MB:
4229 return 12000000;
4230 case IPW_TX_RATE_18MB:
4231 return 18000000;
4232 case IPW_TX_RATE_24MB:
4233 return 24000000;
4234 case IPW_TX_RATE_36MB:
4235 return 36000000;
4236 case IPW_TX_RATE_48MB:
4237 return 48000000;
4238 case IPW_TX_RATE_54MB:
4239 return 54000000;
4240 }
4241
4242 return 0;
4243 }
4244
4245 #define IPW_STATS_INTERVAL (2 * HZ)
4246 static void ipw_gather_stats(struct ipw_priv *priv)
4247 {
4248 u32 rx_err, rx_err_delta, rx_packets_delta;
4249 u32 tx_failures, tx_failures_delta, tx_packets_delta;
4250 u32 missed_beacons_percent, missed_beacons_delta;
4251 u32 quality = 0;
4252 u32 len = sizeof(u32);
4253 s16 rssi;
4254 u32 beacon_quality, signal_quality, tx_quality, rx_quality,
4255 rate_quality;
4256 u32 max_rate;
4257
4258 if (!(priv->status & STATUS_ASSOCIATED)) {
4259 priv->quality = 0;
4260 return;
4261 }
4262
4263 /* Update the statistics */
4264 ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
4265 &priv->missed_beacons, &len);
4266 missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons;
4267 priv->last_missed_beacons = priv->missed_beacons;
4268 if (priv->assoc_request.beacon_interval) {
4269 missed_beacons_percent = missed_beacons_delta *
4270 (HZ * le16_to_cpu(priv->assoc_request.beacon_interval)) /
4271 (IPW_STATS_INTERVAL * 10);
4272 } else {
4273 missed_beacons_percent = 0;
4274 }
4275 average_add(&priv->average_missed_beacons, missed_beacons_percent);
4276
4277 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
4278 rx_err_delta = rx_err - priv->last_rx_err;
4279 priv->last_rx_err = rx_err;
4280
4281 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
4282 tx_failures_delta = tx_failures - priv->last_tx_failures;
4283 priv->last_tx_failures = tx_failures;
4284
4285 rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
4286 priv->last_rx_packets = priv->rx_packets;
4287
4288 tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
4289 priv->last_tx_packets = priv->tx_packets;
4290
4291 /* Calculate quality based on the following:
4292 *
4293 * Missed beacon: 100% = 0, 0% = 70% missed
4294 * Rate: 60% = 1Mbs, 100% = Max
4295 * Rx and Tx errors represent a straight % of total Rx/Tx
4296 * RSSI: 100% = > -50, 0% = < -80
4297 * Rx errors: 100% = 0, 0% = 50% missed
4298 *
4299 * The lowest computed quality is used.
4300 *
4301 */
4302 #define BEACON_THRESHOLD 5
4303 beacon_quality = 100 - missed_beacons_percent;
4304 if (beacon_quality < BEACON_THRESHOLD)
4305 beacon_quality = 0;
4306 else
4307 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
4308 (100 - BEACON_THRESHOLD);
4309 IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
4310 beacon_quality, missed_beacons_percent);
4311
4312 priv->last_rate = ipw_get_current_rate(priv);
4313 max_rate = ipw_get_max_rate(priv);
4314 rate_quality = priv->last_rate * 40 / max_rate + 60;
4315 IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
4316 rate_quality, priv->last_rate / 1000000);
4317
4318 if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta)
4319 rx_quality = 100 - (rx_err_delta * 100) /
4320 (rx_packets_delta + rx_err_delta);
4321 else
4322 rx_quality = 100;
4323 IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n",
4324 rx_quality, rx_err_delta, rx_packets_delta);
4325
4326 if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta)
4327 tx_quality = 100 - (tx_failures_delta * 100) /
4328 (tx_packets_delta + tx_failures_delta);
4329 else
4330 tx_quality = 100;
4331 IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n",
4332 tx_quality, tx_failures_delta, tx_packets_delta);
4333
4334 rssi = priv->exp_avg_rssi;
4335 signal_quality =
4336 (100 *
4337 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4338 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) -
4339 (priv->ieee->perfect_rssi - rssi) *
4340 (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) +
4341 62 * (priv->ieee->perfect_rssi - rssi))) /
4342 ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4343 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi));
4344 if (signal_quality > 100)
4345 signal_quality = 100;
4346 else if (signal_quality < 1)
4347 signal_quality = 0;
4348
4349 IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
4350 signal_quality, rssi);
4351
4352 quality = min(rx_quality, signal_quality);
4353 quality = min(tx_quality, quality);
4354 quality = min(rate_quality, quality);
4355 quality = min(beacon_quality, quality);
4356 if (quality == beacon_quality)
4357 IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n",
4358 quality);
4359 if (quality == rate_quality)
4360 IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n",
4361 quality);
4362 if (quality == tx_quality)
4363 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n",
4364 quality);
4365 if (quality == rx_quality)
4366 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n",
4367 quality);
4368 if (quality == signal_quality)
4369 IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n",
4370 quality);
4371
4372 priv->quality = quality;
4373
4374 schedule_delayed_work(&priv->gather_stats, IPW_STATS_INTERVAL);
4375 }
4376
4377 static void ipw_bg_gather_stats(struct work_struct *work)
4378 {
4379 struct ipw_priv *priv =
4380 container_of(work, struct ipw_priv, gather_stats.work);
4381 mutex_lock(&priv->mutex);
4382 ipw_gather_stats(priv);
4383 mutex_unlock(&priv->mutex);
4384 }
4385
4386 /* Missed beacon behavior:
4387 * 1st missed -> roaming_threshold, just wait, don't do any scan/roam.
4388 * roaming_threshold -> disassociate_threshold, scan and roam for better signal.
4389 * Above disassociate threshold, give up and stop scanning.
4390 * Roaming is disabled if disassociate_threshold <= roaming_threshold */
4391 static void ipw_handle_missed_beacon(struct ipw_priv *priv,
4392 int missed_count)
4393 {
4394 priv->notif_missed_beacons = missed_count;
4395
4396 if (missed_count > priv->disassociate_threshold &&
4397 priv->status & STATUS_ASSOCIATED) {
4398 /* If associated and we've hit the missed
4399 * beacon threshold, disassociate, turn
4400 * off roaming, and abort any active scans */
4401 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4402 IPW_DL_STATE | IPW_DL_ASSOC,
4403 "Missed beacon: %d - disassociate\n", missed_count);
4404 priv->status &= ~STATUS_ROAMING;
4405 if (priv->status & STATUS_SCANNING) {
4406 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4407 IPW_DL_STATE,
4408 "Aborting scan with missed beacon.\n");
4409 schedule_work(&priv->abort_scan);
4410 }
4411
4412 schedule_work(&priv->disassociate);
4413 return;
4414 }
4415
4416 if (priv->status & STATUS_ROAMING) {
4417 /* If we are currently roaming, then just
4418 * print a debug statement... */
4419 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4420 "Missed beacon: %d - roam in progress\n",
4421 missed_count);
4422 return;
4423 }
4424
4425 if (roaming &&
4426 (missed_count > priv->roaming_threshold &&
4427 missed_count <= priv->disassociate_threshold)) {
4428 /* If we are not already roaming, set the ROAM
4429 * bit in the status and kick off a scan.
4430 * This can happen several times before we reach
4431 * disassociate_threshold. */
4432 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4433 "Missed beacon: %d - initiate "
4434 "roaming\n", missed_count);
4435 if (!(priv->status & STATUS_ROAMING)) {
4436 priv->status |= STATUS_ROAMING;
4437 if (!(priv->status & STATUS_SCANNING))
4438 schedule_delayed_work(&priv->request_scan, 0);
4439 }
4440 return;
4441 }
4442
4443 if (priv->status & STATUS_SCANNING &&
4444 missed_count > IPW_MB_SCAN_CANCEL_THRESHOLD) {
4445 /* Stop scan to keep fw from getting
4446 * stuck (only if we aren't roaming --
4447 * otherwise we'll never scan more than 2 or 3
4448 * channels..) */
4449 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE,
4450 "Aborting scan with missed beacon.\n");
4451 schedule_work(&priv->abort_scan);
4452 }
4453
4454 IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count);
4455 }
4456
4457 static void ipw_scan_event(struct work_struct *work)
4458 {
4459 union iwreq_data wrqu;
4460
4461 struct ipw_priv *priv =
4462 container_of(work, struct ipw_priv, scan_event.work);
4463
4464 wrqu.data.length = 0;
4465 wrqu.data.flags = 0;
4466 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
4467 }
4468
4469 static void handle_scan_event(struct ipw_priv *priv)
4470 {
4471 /* Only userspace-requested scan completion events go out immediately */
4472 if (!priv->user_requested_scan) {
4473 schedule_delayed_work(&priv->scan_event,
4474 round_jiffies_relative(msecs_to_jiffies(4000)));
4475 } else {
4476 priv->user_requested_scan = 0;
4477 mod_delayed_work(system_wq, &priv->scan_event, 0);
4478 }
4479 }
4480
4481 /**
4482 * Handle host notification packet.
4483 * Called from interrupt routine
4484 */
4485 static void ipw_rx_notification(struct ipw_priv *priv,
4486 struct ipw_rx_notification *notif)
4487 {
4488 u16 size = le16_to_cpu(notif->size);
4489
4490 IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, size);
4491
4492 switch (notif->subtype) {
4493 case HOST_NOTIFICATION_STATUS_ASSOCIATED:{
4494 struct notif_association *assoc = &notif->u.assoc;
4495
4496 switch (assoc->state) {
4497 case CMAS_ASSOCIATED:{
4498 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4499 IPW_DL_ASSOC,
4500 "associated: '%*pE' %pM\n",
4501 priv->essid_len, priv->essid,
4502 priv->bssid);
4503
4504 switch (priv->ieee->iw_mode) {
4505 case IW_MODE_INFRA:
4506 memcpy(priv->ieee->bssid,
4507 priv->bssid, ETH_ALEN);
4508 break;
4509
4510 case IW_MODE_ADHOC:
4511 memcpy(priv->ieee->bssid,
4512 priv->bssid, ETH_ALEN);
4513
4514 /* clear out the station table */
4515 priv->num_stations = 0;
4516
4517 IPW_DEBUG_ASSOC
4518 ("queueing adhoc check\n");
4519 schedule_delayed_work(
4520 &priv->adhoc_check,
4521 le16_to_cpu(priv->
4522 assoc_request.
4523 beacon_interval));
4524 break;
4525 }
4526
4527 priv->status &= ~STATUS_ASSOCIATING;
4528 priv->status |= STATUS_ASSOCIATED;
4529 schedule_work(&priv->system_config);
4530
4531 #ifdef CONFIG_IPW2200_QOS
4532 #define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \
4533 le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_control))
4534 if ((priv->status & STATUS_AUTH) &&
4535 (IPW_GET_PACKET_STYPE(&notif->u.raw)
4536 == IEEE80211_STYPE_ASSOC_RESP)) {
4537 if ((sizeof
4538 (struct
4539 libipw_assoc_response)
4540 <= size)
4541 && (size <= 2314)) {
4542 struct
4543 libipw_rx_stats
4544 stats = {
4545 .len = size - 1,
4546 };
4547
4548 IPW_DEBUG_QOS
4549 ("QoS Associate "
4550 "size %d\n", size);
4551 libipw_rx_mgt(priv->
4552 ieee,
4553 (struct
4554 libipw_hdr_4addr
4555 *)
4556 &notif->u.raw, &stats);
4557 }
4558 }
4559 #endif
4560
4561 schedule_work(&priv->link_up);
4562
4563 break;
4564 }
4565
4566 case CMAS_AUTHENTICATED:{
4567 if (priv->
4568 status & (STATUS_ASSOCIATED |
4569 STATUS_AUTH)) {
4570 struct notif_authenticate *auth
4571 = &notif->u.auth;
4572 IPW_DEBUG(IPW_DL_NOTIF |
4573 IPW_DL_STATE |
4574 IPW_DL_ASSOC,
4575 "deauthenticated: '%*pE' %pM: (0x%04X) - %s\n",
4576 priv->essid_len,
4577 priv->essid,
4578 priv->bssid,
4579 le16_to_cpu(auth->status),
4580 ipw_get_status_code
4581 (le16_to_cpu
4582 (auth->status)));
4583
4584 priv->status &=
4585 ~(STATUS_ASSOCIATING |
4586 STATUS_AUTH |
4587 STATUS_ASSOCIATED);
4588
4589 schedule_work(&priv->link_down);
4590 break;
4591 }
4592
4593 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4594 IPW_DL_ASSOC,
4595 "authenticated: '%*pE' %pM\n",
4596 priv->essid_len, priv->essid,
4597 priv->bssid);
4598 break;
4599 }
4600
4601 case CMAS_INIT:{
4602 if (priv->status & STATUS_AUTH) {
4603 struct
4604 libipw_assoc_response
4605 *resp;
4606 resp =
4607 (struct
4608 libipw_assoc_response
4609 *)&notif->u.raw;
4610 IPW_DEBUG(IPW_DL_NOTIF |
4611 IPW_DL_STATE |
4612 IPW_DL_ASSOC,
4613 "association failed (0x%04X): %s\n",
4614 le16_to_cpu(resp->status),
4615 ipw_get_status_code
4616 (le16_to_cpu
4617 (resp->status)));
4618 }
4619
4620 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4621 IPW_DL_ASSOC,
4622 "disassociated: '%*pE' %pM\n",
4623 priv->essid_len, priv->essid,
4624 priv->bssid);
4625
4626 priv->status &=
4627 ~(STATUS_DISASSOCIATING |
4628 STATUS_ASSOCIATING |
4629 STATUS_ASSOCIATED | STATUS_AUTH);
4630 if (priv->assoc_network
4631 && (priv->assoc_network->
4632 capability &
4633 WLAN_CAPABILITY_IBSS))
4634 ipw_remove_current_network
4635 (priv);
4636
4637 schedule_work(&priv->link_down);
4638
4639 break;
4640 }
4641
4642 case CMAS_RX_ASSOC_RESP:
4643 break;
4644
4645 default:
4646 IPW_ERROR("assoc: unknown (%d)\n",
4647 assoc->state);
4648 break;
4649 }
4650
4651 break;
4652 }
4653
4654 case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{
4655 struct notif_authenticate *auth = &notif->u.auth;
4656 switch (auth->state) {
4657 case CMAS_AUTHENTICATED:
4658 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4659 "authenticated: '%*pE' %pM\n",
4660 priv->essid_len, priv->essid,
4661 priv->bssid);
4662 priv->status |= STATUS_AUTH;
4663 break;
4664
4665 case CMAS_INIT:
4666 if (priv->status & STATUS_AUTH) {
4667 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4668 IPW_DL_ASSOC,
4669 "authentication failed (0x%04X): %s\n",
4670 le16_to_cpu(auth->status),
4671 ipw_get_status_code(le16_to_cpu
4672 (auth->
4673 status)));
4674 }
4675 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4676 IPW_DL_ASSOC,
4677 "deauthenticated: '%*pE' %pM\n",
4678 priv->essid_len, priv->essid,
4679 priv->bssid);
4680
4681 priv->status &= ~(STATUS_ASSOCIATING |
4682 STATUS_AUTH |
4683 STATUS_ASSOCIATED);
4684
4685 schedule_work(&priv->link_down);
4686 break;
4687
4688 case CMAS_TX_AUTH_SEQ_1:
4689 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4690 IPW_DL_ASSOC, "AUTH_SEQ_1\n");
4691 break;
4692 case CMAS_RX_AUTH_SEQ_2:
4693 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4694 IPW_DL_ASSOC, "AUTH_SEQ_2\n");
4695 break;
4696 case CMAS_AUTH_SEQ_1_PASS:
4697 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4698 IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n");
4699 break;
4700 case CMAS_AUTH_SEQ_1_FAIL:
4701 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4702 IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n");
4703 break;
4704 case CMAS_TX_AUTH_SEQ_3:
4705 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4706 IPW_DL_ASSOC, "AUTH_SEQ_3\n");
4707 break;
4708 case CMAS_RX_AUTH_SEQ_4:
4709 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4710 IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n");
4711 break;
4712 case CMAS_AUTH_SEQ_2_PASS:
4713 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4714 IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n");
4715 break;
4716 case CMAS_AUTH_SEQ_2_FAIL:
4717 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4718 IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n");
4719 break;
4720 case CMAS_TX_ASSOC:
4721 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4722 IPW_DL_ASSOC, "TX_ASSOC\n");
4723 break;
4724 case CMAS_RX_ASSOC_RESP:
4725 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4726 IPW_DL_ASSOC, "RX_ASSOC_RESP\n");
4727
4728 break;
4729 case CMAS_ASSOCIATED:
4730 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4731 IPW_DL_ASSOC, "ASSOCIATED\n");
4732 break;
4733 default:
4734 IPW_DEBUG_NOTIF("auth: failure - %d\n",
4735 auth->state);
4736 break;
4737 }
4738 break;
4739 }
4740
4741 case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{
4742 struct notif_channel_result *x =
4743 &notif->u.channel_result;
4744
4745 if (size == sizeof(*x)) {
4746 IPW_DEBUG_SCAN("Scan result for channel %d\n",
4747 x->channel_num);
4748 } else {
4749 IPW_DEBUG_SCAN("Scan result of wrong size %d "
4750 "(should be %zd)\n",
4751 size, sizeof(*x));
4752 }
4753 break;
4754 }
4755
4756 case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{
4757 struct notif_scan_complete *x = &notif->u.scan_complete;
4758 if (size == sizeof(*x)) {
4759 IPW_DEBUG_SCAN
4760 ("Scan completed: type %d, %d channels, "
4761 "%d status\n", x->scan_type,
4762 x->num_channels, x->status);
4763 } else {
4764 IPW_ERROR("Scan completed of wrong size %d "
4765 "(should be %zd)\n",
4766 size, sizeof(*x));
4767 }
4768
4769 priv->status &=
4770 ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
4771
4772 wake_up_interruptible(&priv->wait_state);
4773 cancel_delayed_work(&priv->scan_check);
4774
4775 if (priv->status & STATUS_EXIT_PENDING)
4776 break;
4777
4778 priv->ieee->scans++;
4779
4780 #ifdef CONFIG_IPW2200_MONITOR
4781 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
4782 priv->status |= STATUS_SCAN_FORCED;
4783 schedule_delayed_work(&priv->request_scan, 0);
4784 break;
4785 }
4786 priv->status &= ~STATUS_SCAN_FORCED;
4787 #endif /* CONFIG_IPW2200_MONITOR */
4788
4789 /* Do queued direct scans first */
4790 if (priv->status & STATUS_DIRECT_SCAN_PENDING)
4791 schedule_delayed_work(&priv->request_direct_scan, 0);
4792
4793 if (!(priv->status & (STATUS_ASSOCIATED |
4794 STATUS_ASSOCIATING |
4795 STATUS_ROAMING |
4796 STATUS_DISASSOCIATING)))
4797 schedule_work(&priv->associate);
4798 else if (priv->status & STATUS_ROAMING) {
4799 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4800 /* If a scan completed and we are in roam mode, then
4801 * the scan that completed was the one requested as a
4802 * result of entering roam... so, schedule the
4803 * roam work */
4804 schedule_work(&priv->roam);
4805 else
4806 /* Don't schedule if we aborted the scan */
4807 priv->status &= ~STATUS_ROAMING;
4808 } else if (priv->status & STATUS_SCAN_PENDING)
4809 schedule_delayed_work(&priv->request_scan, 0);
4810 else if (priv->config & CFG_BACKGROUND_SCAN
4811 && priv->status & STATUS_ASSOCIATED)
4812 schedule_delayed_work(&priv->request_scan,
4813 round_jiffies_relative(HZ));
4814
4815 /* Send an empty event to user space.
4816 * We don't send the received data on the event because
4817 * it would require us to do complex transcoding, and
4818 * we want to minimise the work done in the irq handler
4819 * Use a request to extract the data.
4820 * Also, we generate this even for any scan, regardless
4821 * on how the scan was initiated. User space can just
4822 * sync on periodic scan to get fresh data...
4823 * Jean II */
4824 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4825 handle_scan_event(priv);
4826 break;
4827 }
4828
4829 case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{
4830 struct notif_frag_length *x = &notif->u.frag_len;
4831
4832 if (size == sizeof(*x))
4833 IPW_ERROR("Frag length: %d\n",
4834 le16_to_cpu(x->frag_length));
4835 else
4836 IPW_ERROR("Frag length of wrong size %d "
4837 "(should be %zd)\n",
4838 size, sizeof(*x));
4839 break;
4840 }
4841
4842 case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{
4843 struct notif_link_deterioration *x =
4844 &notif->u.link_deterioration;
4845
4846 if (size == sizeof(*x)) {
4847 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4848 "link deterioration: type %d, cnt %d\n",
4849 x->silence_notification_type,
4850 x->silence_count);
4851 memcpy(&priv->last_link_deterioration, x,
4852 sizeof(*x));
4853 } else {
4854 IPW_ERROR("Link Deterioration of wrong size %d "
4855 "(should be %zd)\n",
4856 size, sizeof(*x));
4857 }
4858 break;
4859 }
4860
4861 case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{
4862 IPW_ERROR("Dino config\n");
4863 if (priv->hcmd
4864 && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG)
4865 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
4866
4867 break;
4868 }
4869
4870 case HOST_NOTIFICATION_STATUS_BEACON_STATE:{
4871 struct notif_beacon_state *x = &notif->u.beacon_state;
4872 if (size != sizeof(*x)) {
4873 IPW_ERROR
4874 ("Beacon state of wrong size %d (should "
4875 "be %zd)\n", size, sizeof(*x));
4876 break;
4877 }
4878
4879 if (le32_to_cpu(x->state) ==
4880 HOST_NOTIFICATION_STATUS_BEACON_MISSING)
4881 ipw_handle_missed_beacon(priv,
4882 le32_to_cpu(x->
4883 number));
4884
4885 break;
4886 }
4887
4888 case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{
4889 struct notif_tgi_tx_key *x = &notif->u.tgi_tx_key;
4890 if (size == sizeof(*x)) {
4891 IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
4892 "0x%02x station %d\n",
4893 x->key_state, x->security_type,
4894 x->station_index);
4895 break;
4896 }
4897
4898 IPW_ERROR
4899 ("TGi Tx Key of wrong size %d (should be %zd)\n",
4900 size, sizeof(*x));
4901 break;
4902 }
4903
4904 case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{
4905 struct notif_calibration *x = &notif->u.calibration;
4906
4907 if (size == sizeof(*x)) {
4908 memcpy(&priv->calib, x, sizeof(*x));
4909 IPW_DEBUG_INFO("TODO: Calibration\n");
4910 break;
4911 }
4912
4913 IPW_ERROR
4914 ("Calibration of wrong size %d (should be %zd)\n",
4915 size, sizeof(*x));
4916 break;
4917 }
4918
4919 case HOST_NOTIFICATION_NOISE_STATS:{
4920 if (size == sizeof(u32)) {
4921 priv->exp_avg_noise =
4922 exponential_average(priv->exp_avg_noise,
4923 (u8) (le32_to_cpu(notif->u.noise.value) & 0xff),
4924 DEPTH_NOISE);
4925 break;
4926 }
4927
4928 IPW_ERROR
4929 ("Noise stat is wrong size %d (should be %zd)\n",
4930 size, sizeof(u32));
4931 break;
4932 }
4933
4934 default:
4935 IPW_DEBUG_NOTIF("Unknown notification: "
4936 "subtype=%d,flags=0x%2x,size=%d\n",
4937 notif->subtype, notif->flags, size);
4938 }
4939 }
4940
4941 /**
4942 * Destroys all DMA structures and initialise them again
4943 *
4944 * @param priv
4945 * @return error code
4946 */
4947 static int ipw_queue_reset(struct ipw_priv *priv)
4948 {
4949 int rc = 0;
4950 /** @todo customize queue sizes */
4951 int nTx = 64, nTxCmd = 8;
4952 ipw_tx_queue_free(priv);
4953 /* Tx CMD queue */
4954 rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
4955 IPW_TX_CMD_QUEUE_READ_INDEX,
4956 IPW_TX_CMD_QUEUE_WRITE_INDEX,
4957 IPW_TX_CMD_QUEUE_BD_BASE,
4958 IPW_TX_CMD_QUEUE_BD_SIZE);
4959 if (rc) {
4960 IPW_ERROR("Tx Cmd queue init failed\n");
4961 goto error;
4962 }
4963 /* Tx queue(s) */
4964 rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
4965 IPW_TX_QUEUE_0_READ_INDEX,
4966 IPW_TX_QUEUE_0_WRITE_INDEX,
4967 IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE);
4968 if (rc) {
4969 IPW_ERROR("Tx 0 queue init failed\n");
4970 goto error;
4971 }
4972 rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
4973 IPW_TX_QUEUE_1_READ_INDEX,
4974 IPW_TX_QUEUE_1_WRITE_INDEX,
4975 IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE);
4976 if (rc) {
4977 IPW_ERROR("Tx 1 queue init failed\n");
4978 goto error;
4979 }
4980 rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
4981 IPW_TX_QUEUE_2_READ_INDEX,
4982 IPW_TX_QUEUE_2_WRITE_INDEX,
4983 IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE);
4984 if (rc) {
4985 IPW_ERROR("Tx 2 queue init failed\n");
4986 goto error;
4987 }
4988 rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
4989 IPW_TX_QUEUE_3_READ_INDEX,
4990 IPW_TX_QUEUE_3_WRITE_INDEX,
4991 IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE);
4992 if (rc) {
4993 IPW_ERROR("Tx 3 queue init failed\n");
4994 goto error;
4995 }
4996 /* statistics */
4997 priv->rx_bufs_min = 0;
4998 priv->rx_pend_max = 0;
4999 return rc;
5000
5001 error:
5002 ipw_tx_queue_free(priv);
5003 return rc;
5004 }
5005
5006 /**
5007 * Reclaim Tx queue entries no more used by NIC.
5008 *
5009 * When FW advances 'R' index, all entries between old and
5010 * new 'R' index need to be reclaimed. As result, some free space
5011 * forms. If there is enough free space (> low mark), wake Tx queue.
5012 *
5013 * @note Need to protect against garbage in 'R' index
5014 * @param priv
5015 * @param txq
5016 * @param qindex
5017 * @return Number of used entries remains in the queue
5018 */
5019 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
5020 struct clx2_tx_queue *txq, int qindex)
5021 {
5022 u32 hw_tail;
5023 int used;
5024 struct clx2_queue *q = &txq->q;
5025
5026 hw_tail = ipw_read32(priv, q->reg_r);
5027 if (hw_tail >= q->n_bd) {
5028 IPW_ERROR
5029 ("Read index for DMA queue (%d) is out of range [0-%d)\n",
5030 hw_tail, q->n_bd);
5031 goto done;
5032 }
5033 for (; q->last_used != hw_tail;
5034 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
5035 ipw_queue_tx_free_tfd(priv, txq);
5036 priv->tx_packets++;
5037 }
5038 done:
5039 if ((ipw_tx_queue_space(q) > q->low_mark) &&
5040 (qindex >= 0))
5041 netif_wake_queue(priv->net_dev);
5042 used = q->first_empty - q->last_used;
5043 if (used < 0)
5044 used += q->n_bd;
5045
5046 return used;
5047 }
5048
5049 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
5050 int len, int sync)
5051 {
5052 struct clx2_tx_queue *txq = &priv->txq_cmd;
5053 struct clx2_queue *q = &txq->q;
5054 struct tfd_frame *tfd;
5055
5056 if (ipw_tx_queue_space(q) < (sync ? 1 : 2)) {
5057 IPW_ERROR("No space for Tx\n");
5058 return -EBUSY;
5059 }
5060
5061 tfd = &txq->bd[q->first_empty];
5062 txq->txb[q->first_empty] = NULL;
5063
5064 memset(tfd, 0, sizeof(*tfd));
5065 tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
5066 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
5067 priv->hcmd_seq++;
5068 tfd->u.cmd.index = hcmd;
5069 tfd->u.cmd.length = len;
5070 memcpy(tfd->u.cmd.payload, buf, len);
5071 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
5072 ipw_write32(priv, q->reg_w, q->first_empty);
5073 _ipw_read32(priv, 0x90);
5074
5075 return 0;
5076 }
5077
5078 /*
5079 * Rx theory of operation
5080 *
5081 * The host allocates 32 DMA target addresses and passes the host address
5082 * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
5083 * 0 to 31
5084 *
5085 * Rx Queue Indexes
5086 * The host/firmware share two index registers for managing the Rx buffers.
5087 *
5088 * The READ index maps to the first position that the firmware may be writing
5089 * to -- the driver can read up to (but not including) this position and get
5090 * good data.
5091 * The READ index is managed by the firmware once the card is enabled.
5092 *
5093 * The WRITE index maps to the last position the driver has read from -- the
5094 * position preceding WRITE is the last slot the firmware can place a packet.
5095 *
5096 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
5097 * WRITE = READ.
5098 *
5099 * During initialization the host sets up the READ queue position to the first
5100 * INDEX position, and WRITE to the last (READ - 1 wrapped)
5101 *
5102 * When the firmware places a packet in a buffer it will advance the READ index
5103 * and fire the RX interrupt. The driver can then query the READ index and
5104 * process as many packets as possible, moving the WRITE index forward as it
5105 * resets the Rx queue buffers with new memory.
5106 *
5107 * The management in the driver is as follows:
5108 * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When
5109 * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
5110 * to replensish the ipw->rxq->rx_free.
5111 * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
5112 * ipw->rxq is replenished and the READ INDEX is updated (updating the
5113 * 'processed' and 'read' driver indexes as well)
5114 * + A received packet is processed and handed to the kernel network stack,
5115 * detached from the ipw->rxq. The driver 'processed' index is updated.
5116 * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
5117 * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
5118 * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there
5119 * were enough free buffers and RX_STALLED is set it is cleared.
5120 *
5121 *
5122 * Driver sequence:
5123 *
5124 * ipw_rx_queue_alloc() Allocates rx_free
5125 * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls
5126 * ipw_rx_queue_restock
5127 * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx
5128 * queue, updates firmware pointers, and updates
5129 * the WRITE index. If insufficient rx_free buffers
5130 * are available, schedules ipw_rx_queue_replenish
5131 *
5132 * -- enable interrupts --
5133 * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the
5134 * READ INDEX, detaching the SKB from the pool.
5135 * Moves the packet buffer from queue to rx_used.
5136 * Calls ipw_rx_queue_restock to refill any empty
5137 * slots.
5138 * ...
5139 *
5140 */
5141
5142 /*
5143 * If there are slots in the RX queue that need to be restocked,
5144 * and we have free pre-allocated buffers, fill the ranks as much
5145 * as we can pulling from rx_free.
5146 *
5147 * This moves the 'write' index forward to catch up with 'processed', and
5148 * also updates the memory address in the firmware to reference the new
5149 * target buffer.
5150 */
5151 static void ipw_rx_queue_restock(struct ipw_priv *priv)
5152 {
5153 struct ipw_rx_queue *rxq = priv->rxq;
5154 struct list_head *element;
5155 struct ipw_rx_mem_buffer *rxb;
5156 unsigned long flags;
5157 int write;
5158
5159 spin_lock_irqsave(&rxq->lock, flags);
5160 write = rxq->write;
5161 while ((ipw_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
5162 element = rxq->rx_free.next;
5163 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5164 list_del(element);
5165
5166 ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
5167 rxb->dma_addr);
5168 rxq->queue[rxq->write] = rxb;
5169 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
5170 rxq->free_count--;
5171 }
5172 spin_unlock_irqrestore(&rxq->lock, flags);
5173
5174 /* If the pre-allocated buffer pool is dropping low, schedule to
5175 * refill it */
5176 if (rxq->free_count <= RX_LOW_WATERMARK)
5177 schedule_work(&priv->rx_replenish);
5178
5179 /* If we've added more space for the firmware to place data, tell it */
5180 if (write != rxq->write)
5181 ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write);
5182 }
5183
5184 /*
5185 * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
5186 * Also restock the Rx queue via ipw_rx_queue_restock.
5187 *
5188 * This is called as a scheduled work item (except for during initialization)
5189 */
5190 static void ipw_rx_queue_replenish(void *data)
5191 {
5192 struct ipw_priv *priv = data;
5193 struct ipw_rx_queue *rxq = priv->rxq;
5194 struct list_head *element;
5195 struct ipw_rx_mem_buffer *rxb;
5196 unsigned long flags;
5197
5198 spin_lock_irqsave(&rxq->lock, flags);
5199 while (!list_empty(&rxq->rx_used)) {
5200 element = rxq->rx_used.next;
5201 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5202 rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC);
5203 if (!rxb->skb) {
5204 printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
5205 priv->net_dev->name);
5206 /* We don't reschedule replenish work here -- we will
5207 * call the restock method and if it still needs
5208 * more buffers it will schedule replenish */
5209 break;
5210 }
5211 list_del(element);
5212
5213 rxb->dma_addr =
5214 pci_map_single(priv->pci_dev, rxb->skb->data,
5215 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5216
5217 list_add_tail(&rxb->list, &rxq->rx_free);
5218 rxq->free_count++;
5219 }
5220 spin_unlock_irqrestore(&rxq->lock, flags);
5221
5222 ipw_rx_queue_restock(priv);
5223 }
5224
5225 static void ipw_bg_rx_queue_replenish(struct work_struct *work)
5226 {
5227 struct ipw_priv *priv =
5228 container_of(work, struct ipw_priv, rx_replenish);
5229 mutex_lock(&priv->mutex);
5230 ipw_rx_queue_replenish(priv);
5231 mutex_unlock(&priv->mutex);
5232 }
5233
5234 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
5235 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
5236 * This free routine walks the list of POOL entries and if SKB is set to
5237 * non NULL it is unmapped and freed
5238 */
5239 static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq)
5240 {
5241 int i;
5242
5243 if (!rxq)
5244 return;
5245
5246 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
5247 if (rxq->pool[i].skb != NULL) {
5248 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
5249 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5250 dev_kfree_skb(rxq->pool[i].skb);
5251 }
5252 }
5253
5254 kfree(rxq);
5255 }
5256
5257 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
5258 {
5259 struct ipw_rx_queue *rxq;
5260 int i;
5261
5262 rxq = kzalloc(sizeof(*rxq), GFP_KERNEL);
5263 if (unlikely(!rxq)) {
5264 IPW_ERROR("memory allocation failed\n");
5265 return NULL;
5266 }
5267 spin_lock_init(&rxq->lock);
5268 INIT_LIST_HEAD(&rxq->rx_free);
5269 INIT_LIST_HEAD(&rxq->rx_used);
5270
5271 /* Fill the rx_used queue with _all_ of the Rx buffers */
5272 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
5273 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
5274
5275 /* Set us so that we have processed and used all buffers, but have
5276 * not restocked the Rx queue with fresh buffers */
5277 rxq->read = rxq->write = 0;
5278 rxq->free_count = 0;
5279
5280 return rxq;
5281 }
5282
5283 static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
5284 {
5285 rate &= ~LIBIPW_BASIC_RATE_MASK;
5286 if (ieee_mode == IEEE_A) {
5287 switch (rate) {
5288 case LIBIPW_OFDM_RATE_6MB:
5289 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ?
5290 1 : 0;
5291 case LIBIPW_OFDM_RATE_9MB:
5292 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ?
5293 1 : 0;
5294 case LIBIPW_OFDM_RATE_12MB:
5295 return priv->
5296 rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0;
5297 case LIBIPW_OFDM_RATE_18MB:
5298 return priv->
5299 rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0;
5300 case LIBIPW_OFDM_RATE_24MB:
5301 return priv->
5302 rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0;
5303 case LIBIPW_OFDM_RATE_36MB:
5304 return priv->
5305 rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0;
5306 case LIBIPW_OFDM_RATE_48MB:
5307 return priv->
5308 rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0;
5309 case LIBIPW_OFDM_RATE_54MB:
5310 return priv->
5311 rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0;
5312 default:
5313 return 0;
5314 }
5315 }
5316
5317 /* B and G mixed */
5318 switch (rate) {
5319 case LIBIPW_CCK_RATE_1MB:
5320 return priv->rates_mask & LIBIPW_CCK_RATE_1MB_MASK ? 1 : 0;
5321 case LIBIPW_CCK_RATE_2MB:
5322 return priv->rates_mask & LIBIPW_CCK_RATE_2MB_MASK ? 1 : 0;
5323 case LIBIPW_CCK_RATE_5MB:
5324 return priv->rates_mask & LIBIPW_CCK_RATE_5MB_MASK ? 1 : 0;
5325 case LIBIPW_CCK_RATE_11MB:
5326 return priv->rates_mask & LIBIPW_CCK_RATE_11MB_MASK ? 1 : 0;
5327 }
5328
5329 /* If we are limited to B modulations, bail at this point */
5330 if (ieee_mode == IEEE_B)
5331 return 0;
5332
5333 /* G */
5334 switch (rate) {
5335 case LIBIPW_OFDM_RATE_6MB:
5336 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? 1 : 0;
5337 case LIBIPW_OFDM_RATE_9MB:
5338 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? 1 : 0;
5339 case LIBIPW_OFDM_RATE_12MB:
5340 return priv->rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0;
5341 case LIBIPW_OFDM_RATE_18MB:
5342 return priv->rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0;
5343 case LIBIPW_OFDM_RATE_24MB:
5344 return priv->rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0;
5345 case LIBIPW_OFDM_RATE_36MB:
5346 return priv->rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0;
5347 case LIBIPW_OFDM_RATE_48MB:
5348 return priv->rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0;
5349 case LIBIPW_OFDM_RATE_54MB:
5350 return priv->rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0;
5351 }
5352
5353 return 0;
5354 }
5355
5356 static int ipw_compatible_rates(struct ipw_priv *priv,
5357 const struct libipw_network *network,
5358 struct ipw_supported_rates *rates)
5359 {
5360 int num_rates, i;
5361
5362 memset(rates, 0, sizeof(*rates));
5363 num_rates = min(network->rates_len, (u8) IPW_MAX_RATES);
5364 rates->num_rates = 0;
5365 for (i = 0; i < num_rates; i++) {
5366 if (!ipw_is_rate_in_mask(priv, network->mode,
5367 network->rates[i])) {
5368
5369 if (network->rates[i] & LIBIPW_BASIC_RATE_MASK) {
5370 IPW_DEBUG_SCAN("Adding masked mandatory "
5371 "rate %02X\n",
5372 network->rates[i]);
5373 rates->supported_rates[rates->num_rates++] =
5374 network->rates[i];
5375 continue;
5376 }
5377
5378 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5379 network->rates[i], priv->rates_mask);
5380 continue;
5381 }
5382
5383 rates->supported_rates[rates->num_rates++] = network->rates[i];
5384 }
5385
5386 num_rates = min(network->rates_ex_len,
5387 (u8) (IPW_MAX_RATES - num_rates));
5388 for (i = 0; i < num_rates; i++) {
5389 if (!ipw_is_rate_in_mask(priv, network->mode,
5390 network->rates_ex[i])) {
5391 if (network->rates_ex[i] & LIBIPW_BASIC_RATE_MASK) {
5392 IPW_DEBUG_SCAN("Adding masked mandatory "
5393 "rate %02X\n",
5394 network->rates_ex[i]);
5395 rates->supported_rates[rates->num_rates++] =
5396 network->rates[i];
5397 continue;
5398 }
5399
5400 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5401 network->rates_ex[i], priv->rates_mask);
5402 continue;
5403 }
5404
5405 rates->supported_rates[rates->num_rates++] =
5406 network->rates_ex[i];
5407 }
5408
5409 return 1;
5410 }
5411
5412 static void ipw_copy_rates(struct ipw_supported_rates *dest,
5413 const struct ipw_supported_rates *src)
5414 {
5415 u8 i;
5416 for (i = 0; i < src->num_rates; i++)
5417 dest->supported_rates[i] = src->supported_rates[i];
5418 dest->num_rates = src->num_rates;
5419 }
5420
5421 /* TODO: Look at sniffed packets in the air to determine if the basic rate
5422 * mask should ever be used -- right now all callers to add the scan rates are
5423 * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
5424 static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
5425 u8 modulation, u32 rate_mask)
5426 {
5427 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ?
5428 LIBIPW_BASIC_RATE_MASK : 0;
5429
5430 if (rate_mask & LIBIPW_CCK_RATE_1MB_MASK)
5431 rates->supported_rates[rates->num_rates++] =
5432 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_1MB;
5433
5434 if (rate_mask & LIBIPW_CCK_RATE_2MB_MASK)
5435 rates->supported_rates[rates->num_rates++] =
5436 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_2MB;
5437
5438 if (rate_mask & LIBIPW_CCK_RATE_5MB_MASK)
5439 rates->supported_rates[rates->num_rates++] = basic_mask |
5440 LIBIPW_CCK_RATE_5MB;
5441
5442 if (rate_mask & LIBIPW_CCK_RATE_11MB_MASK)
5443 rates->supported_rates[rates->num_rates++] = basic_mask |
5444 LIBIPW_CCK_RATE_11MB;
5445 }
5446
5447 static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
5448 u8 modulation, u32 rate_mask)
5449 {
5450 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ?
5451 LIBIPW_BASIC_RATE_MASK : 0;
5452
5453 if (rate_mask & LIBIPW_OFDM_RATE_6MB_MASK)
5454 rates->supported_rates[rates->num_rates++] = basic_mask |
5455 LIBIPW_OFDM_RATE_6MB;
5456
5457 if (rate_mask & LIBIPW_OFDM_RATE_9MB_MASK)
5458 rates->supported_rates[rates->num_rates++] =
5459 LIBIPW_OFDM_RATE_9MB;
5460
5461 if (rate_mask & LIBIPW_OFDM_RATE_12MB_MASK)
5462 rates->supported_rates[rates->num_rates++] = basic_mask |
5463 LIBIPW_OFDM_RATE_12MB;
5464
5465 if (rate_mask & LIBIPW_OFDM_RATE_18MB_MASK)
5466 rates->supported_rates[rates->num_rates++] =
5467 LIBIPW_OFDM_RATE_18MB;
5468
5469 if (rate_mask & LIBIPW_OFDM_RATE_24MB_MASK)
5470 rates->supported_rates[rates->num_rates++] = basic_mask |
5471 LIBIPW_OFDM_RATE_24MB;
5472
5473 if (rate_mask & LIBIPW_OFDM_RATE_36MB_MASK)
5474 rates->supported_rates[rates->num_rates++] =
5475 LIBIPW_OFDM_RATE_36MB;
5476
5477 if (rate_mask & LIBIPW_OFDM_RATE_48MB_MASK)
5478 rates->supported_rates[rates->num_rates++] =
5479 LIBIPW_OFDM_RATE_48MB;
5480
5481 if (rate_mask & LIBIPW_OFDM_RATE_54MB_MASK)
5482 rates->supported_rates[rates->num_rates++] =
5483 LIBIPW_OFDM_RATE_54MB;
5484 }
5485
5486 struct ipw_network_match {
5487 struct libipw_network *network;
5488 struct ipw_supported_rates rates;
5489 };
5490
5491 static int ipw_find_adhoc_network(struct ipw_priv *priv,
5492 struct ipw_network_match *match,
5493 struct libipw_network *network,
5494 int roaming)
5495 {
5496 struct ipw_supported_rates rates;
5497
5498 /* Verify that this network's capability is compatible with the
5499 * current mode (AdHoc or Infrastructure) */
5500 if ((priv->ieee->iw_mode == IW_MODE_ADHOC &&
5501 !(network->capability & WLAN_CAPABILITY_IBSS))) {
5502 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded due to capability mismatch.\n",
5503 network->ssid_len, network->ssid,
5504 network->bssid);
5505 return 0;
5506 }
5507
5508 if (unlikely(roaming)) {
5509 /* If we are roaming, then ensure check if this is a valid
5510 * network to try and roam to */
5511 if ((network->ssid_len != match->network->ssid_len) ||
5512 memcmp(network->ssid, match->network->ssid,
5513 network->ssid_len)) {
5514 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of non-network ESSID.\n",
5515 network->ssid_len, network->ssid,
5516 network->bssid);
5517 return 0;
5518 }
5519 } else {
5520 /* If an ESSID has been configured then compare the broadcast
5521 * ESSID to ours */
5522 if ((priv->config & CFG_STATIC_ESSID) &&
5523 ((network->ssid_len != priv->essid_len) ||
5524 memcmp(network->ssid, priv->essid,
5525 min(network->ssid_len, priv->essid_len)))) {
5526 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n",
5527 network->ssid_len, network->ssid,
5528 network->bssid, priv->essid_len,
5529 priv->essid);
5530 return 0;
5531 }
5532 }
5533
5534 /* If the old network rate is better than this one, don't bother
5535 * testing everything else. */
5536
5537 if (network->time_stamp[0] < match->network->time_stamp[0]) {
5538 IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n",
5539 match->network->ssid_len, match->network->ssid);
5540 return 0;
5541 } else if (network->time_stamp[1] < match->network->time_stamp[1]) {
5542 IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n",
5543 match->network->ssid_len, match->network->ssid);
5544 return 0;
5545 }
5546
5547 /* Now go through and see if the requested network is valid... */
5548 if (priv->ieee->scan_age != 0 &&
5549 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5550 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of age: %ums.\n",
5551 network->ssid_len, network->ssid,
5552 network->bssid,
5553 jiffies_to_msecs(jiffies -
5554 network->last_scanned));
5555 return 0;
5556 }
5557
5558 if ((priv->config & CFG_STATIC_CHANNEL) &&
5559 (network->channel != priv->channel)) {
5560 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n",
5561 network->ssid_len, network->ssid,
5562 network->bssid,
5563 network->channel, priv->channel);
5564 return 0;
5565 }
5566
5567 /* Verify privacy compatibility */
5568 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5569 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5570 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n",
5571 network->ssid_len, network->ssid,
5572 network->bssid,
5573 priv->
5574 capability & CAP_PRIVACY_ON ? "on" : "off",
5575 network->
5576 capability & WLAN_CAPABILITY_PRIVACY ? "on" :
5577 "off");
5578 return 0;
5579 }
5580
5581 if (ether_addr_equal(network->bssid, priv->bssid)) {
5582 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of the same BSSID match: %pM.\n",
5583 network->ssid_len, network->ssid,
5584 network->bssid, priv->bssid);
5585 return 0;
5586 }
5587
5588 /* Filter out any incompatible freq / mode combinations */
5589 if (!libipw_is_valid_mode(priv->ieee, network->mode)) {
5590 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n",
5591 network->ssid_len, network->ssid,
5592 network->bssid);
5593 return 0;
5594 }
5595
5596 /* Ensure that the rates supported by the driver are compatible with
5597 * this AP, including verification of basic rates (mandatory) */
5598 if (!ipw_compatible_rates(priv, network, &rates)) {
5599 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n",
5600 network->ssid_len, network->ssid,
5601 network->bssid);
5602 return 0;
5603 }
5604
5605 if (rates.num_rates == 0) {
5606 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of no compatible rates.\n",
5607 network->ssid_len, network->ssid,
5608 network->bssid);
5609 return 0;
5610 }
5611
5612 /* TODO: Perform any further minimal comparititive tests. We do not
5613 * want to put too much policy logic here; intelligent scan selection
5614 * should occur within a generic IEEE 802.11 user space tool. */
5615
5616 /* Set up 'new' AP to this network */
5617 ipw_copy_rates(&match->rates, &rates);
5618 match->network = network;
5619 IPW_DEBUG_MERGE("Network '%*pE (%pM)' is a viable match.\n",
5620 network->ssid_len, network->ssid, network->bssid);
5621
5622 return 1;
5623 }
5624
5625 static void ipw_merge_adhoc_network(struct work_struct *work)
5626 {
5627 struct ipw_priv *priv =
5628 container_of(work, struct ipw_priv, merge_networks);
5629 struct libipw_network *network = NULL;
5630 struct ipw_network_match match = {
5631 .network = priv->assoc_network
5632 };
5633
5634 if ((priv->status & STATUS_ASSOCIATED) &&
5635 (priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5636 /* First pass through ROAM process -- look for a better
5637 * network */
5638 unsigned long flags;
5639
5640 spin_lock_irqsave(&priv->ieee->lock, flags);
5641 list_for_each_entry(network, &priv->ieee->network_list, list) {
5642 if (network != priv->assoc_network)
5643 ipw_find_adhoc_network(priv, &match, network,
5644 1);
5645 }
5646 spin_unlock_irqrestore(&priv->ieee->lock, flags);
5647
5648 if (match.network == priv->assoc_network) {
5649 IPW_DEBUG_MERGE("No better ADHOC in this network to "
5650 "merge to.\n");
5651 return;
5652 }
5653
5654 mutex_lock(&priv->mutex);
5655 if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5656 IPW_DEBUG_MERGE("remove network %*pE\n",
5657 priv->essid_len, priv->essid);
5658 ipw_remove_current_network(priv);
5659 }
5660
5661 ipw_disassociate(priv);
5662 priv->assoc_network = match.network;
5663 mutex_unlock(&priv->mutex);
5664 return;
5665 }
5666 }
5667
5668 static int ipw_best_network(struct ipw_priv *priv,
5669 struct ipw_network_match *match,
5670 struct libipw_network *network, int roaming)
5671 {
5672 struct ipw_supported_rates rates;
5673
5674 /* Verify that this network's capability is compatible with the
5675 * current mode (AdHoc or Infrastructure) */
5676 if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
5677 !(network->capability & WLAN_CAPABILITY_ESS)) ||
5678 (priv->ieee->iw_mode == IW_MODE_ADHOC &&
5679 !(network->capability & WLAN_CAPABILITY_IBSS))) {
5680 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded due to capability mismatch.\n",
5681 network->ssid_len, network->ssid,
5682 network->bssid);
5683 return 0;
5684 }
5685
5686 if (unlikely(roaming)) {
5687 /* If we are roaming, then ensure check if this is a valid
5688 * network to try and roam to */
5689 if ((network->ssid_len != match->network->ssid_len) ||
5690 memcmp(network->ssid, match->network->ssid,
5691 network->ssid_len)) {
5692 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of non-network ESSID.\n",
5693 network->ssid_len, network->ssid,
5694 network->bssid);
5695 return 0;
5696 }
5697 } else {
5698 /* If an ESSID has been configured then compare the broadcast
5699 * ESSID to ours */
5700 if ((priv->config & CFG_STATIC_ESSID) &&
5701 ((network->ssid_len != priv->essid_len) ||
5702 memcmp(network->ssid, priv->essid,
5703 min(network->ssid_len, priv->essid_len)))) {
5704 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n",
5705 network->ssid_len, network->ssid,
5706 network->bssid, priv->essid_len,
5707 priv->essid);
5708 return 0;
5709 }
5710 }
5711
5712 /* If the old network rate is better than this one, don't bother
5713 * testing everything else. */
5714 if (match->network && match->network->stats.rssi > network->stats.rssi) {
5715 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because '%*pE (%pM)' has a stronger signal.\n",
5716 network->ssid_len, network->ssid,
5717 network->bssid, match->network->ssid_len,
5718 match->network->ssid, match->network->bssid);
5719 return 0;
5720 }
5721
5722 /* If this network has already had an association attempt within the
5723 * last 3 seconds, do not try and associate again... */
5724 if (network->last_associate &&
5725 time_after(network->last_associate + (HZ * 3UL), jiffies)) {
5726 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of storming (%ums since last assoc attempt).\n",
5727 network->ssid_len, network->ssid,
5728 network->bssid,
5729 jiffies_to_msecs(jiffies -
5730 network->last_associate));
5731 return 0;
5732 }
5733
5734 /* Now go through and see if the requested network is valid... */
5735 if (priv->ieee->scan_age != 0 &&
5736 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5737 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of age: %ums.\n",
5738 network->ssid_len, network->ssid,
5739 network->bssid,
5740 jiffies_to_msecs(jiffies -
5741 network->last_scanned));
5742 return 0;
5743 }
5744
5745 if ((priv->config & CFG_STATIC_CHANNEL) &&
5746 (network->channel != priv->channel)) {
5747 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n",
5748 network->ssid_len, network->ssid,
5749 network->bssid,
5750 network->channel, priv->channel);
5751 return 0;
5752 }
5753
5754 /* Verify privacy compatibility */
5755 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5756 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5757 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n",
5758 network->ssid_len, network->ssid,
5759 network->bssid,
5760 priv->capability & CAP_PRIVACY_ON ? "on" :
5761 "off",
5762 network->capability &
5763 WLAN_CAPABILITY_PRIVACY ? "on" : "off");
5764 return 0;
5765 }
5766
5767 if ((priv->config & CFG_STATIC_BSSID) &&
5768 !ether_addr_equal(network->bssid, priv->bssid)) {
5769 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of BSSID mismatch: %pM.\n",
5770 network->ssid_len, network->ssid,
5771 network->bssid, priv->bssid);
5772 return 0;
5773 }
5774
5775 /* Filter out any incompatible freq / mode combinations */
5776 if (!libipw_is_valid_mode(priv->ieee, network->mode)) {
5777 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n",
5778 network->ssid_len, network->ssid,
5779 network->bssid);
5780 return 0;
5781 }
5782
5783 /* Filter out invalid channel in current GEO */
5784 if (!libipw_is_valid_channel(priv->ieee, network->channel)) {
5785 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid channel in current GEO\n",
5786 network->ssid_len, network->ssid,
5787 network->bssid);
5788 return 0;
5789 }
5790
5791 /* Ensure that the rates supported by the driver are compatible with
5792 * this AP, including verification of basic rates (mandatory) */
5793 if (!ipw_compatible_rates(priv, network, &rates)) {
5794 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n",
5795 network->ssid_len, network->ssid,
5796 network->bssid);
5797 return 0;
5798 }
5799
5800 if (rates.num_rates == 0) {
5801 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of no compatible rates.\n",
5802 network->ssid_len, network->ssid,
5803 network->bssid);
5804 return 0;
5805 }
5806
5807 /* TODO: Perform any further minimal comparititive tests. We do not
5808 * want to put too much policy logic here; intelligent scan selection
5809 * should occur within a generic IEEE 802.11 user space tool. */
5810
5811 /* Set up 'new' AP to this network */
5812 ipw_copy_rates(&match->rates, &rates);
5813 match->network = network;
5814
5815 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' is a viable match.\n",
5816 network->ssid_len, network->ssid, network->bssid);
5817
5818 return 1;
5819 }
5820
5821 static void ipw_adhoc_create(struct ipw_priv *priv,
5822 struct libipw_network *network)
5823 {
5824 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
5825 int i;
5826
5827 /*
5828 * For the purposes of scanning, we can set our wireless mode
5829 * to trigger scans across combinations of bands, but when it
5830 * comes to creating a new ad-hoc network, we have tell the FW
5831 * exactly which band to use.
5832 *
5833 * We also have the possibility of an invalid channel for the
5834 * chossen band. Attempting to create a new ad-hoc network
5835 * with an invalid channel for wireless mode will trigger a
5836 * FW fatal error.
5837 *
5838 */
5839 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
5840 case LIBIPW_52GHZ_BAND:
5841 network->mode = IEEE_A;
5842 i = libipw_channel_to_index(priv->ieee, priv->channel);
5843 BUG_ON(i == -1);
5844 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) {
5845 IPW_WARNING("Overriding invalid channel\n");
5846 priv->channel = geo->a[0].channel;
5847 }
5848 break;
5849
5850 case LIBIPW_24GHZ_BAND:
5851 if (priv->ieee->mode & IEEE_G)
5852 network->mode = IEEE_G;
5853 else
5854 network->mode = IEEE_B;
5855 i = libipw_channel_to_index(priv->ieee, priv->channel);
5856 BUG_ON(i == -1);
5857 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) {
5858 IPW_WARNING("Overriding invalid channel\n");
5859 priv->channel = geo->bg[0].channel;
5860 }
5861 break;
5862
5863 default:
5864 IPW_WARNING("Overriding invalid channel\n");
5865 if (priv->ieee->mode & IEEE_A) {
5866 network->mode = IEEE_A;
5867 priv->channel = geo->a[0].channel;
5868 } else if (priv->ieee->mode & IEEE_G) {
5869 network->mode = IEEE_G;
5870 priv->channel = geo->bg[0].channel;
5871 } else {
5872 network->mode = IEEE_B;
5873 priv->channel = geo->bg[0].channel;
5874 }
5875 break;
5876 }
5877
5878 network->channel = priv->channel;
5879 priv->config |= CFG_ADHOC_PERSIST;
5880 ipw_create_bssid(priv, network->bssid);
5881 network->ssid_len = priv->essid_len;
5882 memcpy(network->ssid, priv->essid, priv->essid_len);
5883 memset(&network->stats, 0, sizeof(network->stats));
5884 network->capability = WLAN_CAPABILITY_IBSS;
5885 if (!(priv->config & CFG_PREAMBLE_LONG))
5886 network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
5887 if (priv->capability & CAP_PRIVACY_ON)
5888 network->capability |= WLAN_CAPABILITY_PRIVACY;
5889 network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
5890 memcpy(network->rates, priv->rates.supported_rates, network->rates_len);
5891 network->rates_ex_len = priv->rates.num_rates - network->rates_len;
5892 memcpy(network->rates_ex,
5893 &priv->rates.supported_rates[network->rates_len],
5894 network->rates_ex_len);
5895 network->last_scanned = 0;
5896 network->flags = 0;
5897 network->last_associate = 0;
5898 network->time_stamp[0] = 0;
5899 network->time_stamp[1] = 0;
5900 network->beacon_interval = 100; /* Default */
5901 network->listen_interval = 10; /* Default */
5902 network->atim_window = 0; /* Default */
5903 network->wpa_ie_len = 0;
5904 network->rsn_ie_len = 0;
5905 }
5906
5907 static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index)
5908 {
5909 struct ipw_tgi_tx_key key;
5910
5911 if (!(priv->ieee->sec.flags & (1 << index)))
5912 return;
5913
5914 key.key_id = index;
5915 memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH);
5916 key.security_type = type;
5917 key.station_index = 0; /* always 0 for BSS */
5918 key.flags = 0;
5919 /* 0 for new key; previous value of counter (after fatal error) */
5920 key.tx_counter[0] = cpu_to_le32(0);
5921 key.tx_counter[1] = cpu_to_le32(0);
5922
5923 ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key);
5924 }
5925
5926 static void ipw_send_wep_keys(struct ipw_priv *priv, int type)
5927 {
5928 struct ipw_wep_key key;
5929 int i;
5930
5931 key.cmd_id = DINO_CMD_WEP_KEY;
5932 key.seq_num = 0;
5933
5934 /* Note: AES keys cannot be set for multiple times.
5935 * Only set it at the first time. */
5936 for (i = 0; i < 4; i++) {
5937 key.key_index = i | type;
5938 if (!(priv->ieee->sec.flags & (1 << i))) {
5939 key.key_size = 0;
5940 continue;
5941 }
5942
5943 key.key_size = priv->ieee->sec.key_sizes[i];
5944 memcpy(key.key, priv->ieee->sec.keys[i], key.key_size);
5945
5946 ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key);
5947 }
5948 }
5949
5950 static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level)
5951 {
5952 if (priv->ieee->host_encrypt)
5953 return;
5954
5955 switch (level) {
5956 case SEC_LEVEL_3:
5957 priv->sys_config.disable_unicast_decryption = 0;
5958 priv->ieee->host_decrypt = 0;
5959 break;
5960 case SEC_LEVEL_2:
5961 priv->sys_config.disable_unicast_decryption = 1;
5962 priv->ieee->host_decrypt = 1;
5963 break;
5964 case SEC_LEVEL_1:
5965 priv->sys_config.disable_unicast_decryption = 0;
5966 priv->ieee->host_decrypt = 0;
5967 break;
5968 case SEC_LEVEL_0:
5969 priv->sys_config.disable_unicast_decryption = 1;
5970 break;
5971 default:
5972 break;
5973 }
5974 }
5975
5976 static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level)
5977 {
5978 if (priv->ieee->host_encrypt)
5979 return;
5980
5981 switch (level) {
5982 case SEC_LEVEL_3:
5983 priv->sys_config.disable_multicast_decryption = 0;
5984 break;
5985 case SEC_LEVEL_2:
5986 priv->sys_config.disable_multicast_decryption = 1;
5987 break;
5988 case SEC_LEVEL_1:
5989 priv->sys_config.disable_multicast_decryption = 0;
5990 break;
5991 case SEC_LEVEL_0:
5992 priv->sys_config.disable_multicast_decryption = 1;
5993 break;
5994 default:
5995 break;
5996 }
5997 }
5998
5999 static void ipw_set_hwcrypto_keys(struct ipw_priv *priv)
6000 {
6001 switch (priv->ieee->sec.level) {
6002 case SEC_LEVEL_3:
6003 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
6004 ipw_send_tgi_tx_key(priv,
6005 DCT_FLAG_EXT_SECURITY_CCM,
6006 priv->ieee->sec.active_key);
6007
6008 if (!priv->ieee->host_mc_decrypt)
6009 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM);
6010 break;
6011 case SEC_LEVEL_2:
6012 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
6013 ipw_send_tgi_tx_key(priv,
6014 DCT_FLAG_EXT_SECURITY_TKIP,
6015 priv->ieee->sec.active_key);
6016 break;
6017 case SEC_LEVEL_1:
6018 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
6019 ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level);
6020 ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level);
6021 break;
6022 case SEC_LEVEL_0:
6023 default:
6024 break;
6025 }
6026 }
6027
6028 static void ipw_adhoc_check(void *data)
6029 {
6030 struct ipw_priv *priv = data;
6031
6032 if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold &&
6033 !(priv->config & CFG_ADHOC_PERSIST)) {
6034 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
6035 IPW_DL_STATE | IPW_DL_ASSOC,
6036 "Missed beacon: %d - disassociate\n",
6037 priv->missed_adhoc_beacons);
6038 ipw_remove_current_network(priv);
6039 ipw_disassociate(priv);
6040 return;
6041 }
6042
6043 schedule_delayed_work(&priv->adhoc_check,
6044 le16_to_cpu(priv->assoc_request.beacon_interval));
6045 }
6046
6047 static void ipw_bg_adhoc_check(struct work_struct *work)
6048 {
6049 struct ipw_priv *priv =
6050 container_of(work, struct ipw_priv, adhoc_check.work);
6051 mutex_lock(&priv->mutex);
6052 ipw_adhoc_check(priv);
6053 mutex_unlock(&priv->mutex);
6054 }
6055
6056 static void ipw_debug_config(struct ipw_priv *priv)
6057 {
6058 IPW_DEBUG_INFO("Scan completed, no valid APs matched "
6059 "[CFG 0x%08X]\n", priv->config);
6060 if (priv->config & CFG_STATIC_CHANNEL)
6061 IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel);
6062 else
6063 IPW_DEBUG_INFO("Channel unlocked.\n");
6064 if (priv->config & CFG_STATIC_ESSID)
6065 IPW_DEBUG_INFO("ESSID locked to '%*pE'\n",
6066 priv->essid_len, priv->essid);
6067 else
6068 IPW_DEBUG_INFO("ESSID unlocked.\n");
6069 if (priv->config & CFG_STATIC_BSSID)
6070 IPW_DEBUG_INFO("BSSID locked to %pM\n", priv->bssid);
6071 else
6072 IPW_DEBUG_INFO("BSSID unlocked.\n");
6073 if (priv->capability & CAP_PRIVACY_ON)
6074 IPW_DEBUG_INFO("PRIVACY on\n");
6075 else
6076 IPW_DEBUG_INFO("PRIVACY off\n");
6077 IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
6078 }
6079
6080 static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode)
6081 {
6082 /* TODO: Verify that this works... */
6083 struct ipw_fixed_rate fr;
6084 u32 reg;
6085 u16 mask = 0;
6086 u16 new_tx_rates = priv->rates_mask;
6087
6088 /* Identify 'current FW band' and match it with the fixed
6089 * Tx rates */
6090
6091 switch (priv->ieee->freq_band) {
6092 case LIBIPW_52GHZ_BAND: /* A only */
6093 /* IEEE_A */
6094 if (priv->rates_mask & ~LIBIPW_OFDM_RATES_MASK) {
6095 /* Invalid fixed rate mask */
6096 IPW_DEBUG_WX
6097 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6098 new_tx_rates = 0;
6099 break;
6100 }
6101
6102 new_tx_rates >>= LIBIPW_OFDM_SHIFT_MASK_A;
6103 break;
6104
6105 default: /* 2.4Ghz or Mixed */
6106 /* IEEE_B */
6107 if (mode == IEEE_B) {
6108 if (new_tx_rates & ~LIBIPW_CCK_RATES_MASK) {
6109 /* Invalid fixed rate mask */
6110 IPW_DEBUG_WX
6111 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6112 new_tx_rates = 0;
6113 }
6114 break;
6115 }
6116
6117 /* IEEE_G */
6118 if (new_tx_rates & ~(LIBIPW_CCK_RATES_MASK |
6119 LIBIPW_OFDM_RATES_MASK)) {
6120 /* Invalid fixed rate mask */
6121 IPW_DEBUG_WX
6122 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6123 new_tx_rates = 0;
6124 break;
6125 }
6126
6127 if (LIBIPW_OFDM_RATE_6MB_MASK & new_tx_rates) {
6128 mask |= (LIBIPW_OFDM_RATE_6MB_MASK >> 1);
6129 new_tx_rates &= ~LIBIPW_OFDM_RATE_6MB_MASK;
6130 }
6131
6132 if (LIBIPW_OFDM_RATE_9MB_MASK & new_tx_rates) {
6133 mask |= (LIBIPW_OFDM_RATE_9MB_MASK >> 1);
6134 new_tx_rates &= ~LIBIPW_OFDM_RATE_9MB_MASK;
6135 }
6136
6137 if (LIBIPW_OFDM_RATE_12MB_MASK & new_tx_rates) {
6138 mask |= (LIBIPW_OFDM_RATE_12MB_MASK >> 1);
6139 new_tx_rates &= ~LIBIPW_OFDM_RATE_12MB_MASK;
6140 }
6141
6142 new_tx_rates |= mask;
6143 break;
6144 }
6145
6146 fr.tx_rates = cpu_to_le16(new_tx_rates);
6147
6148 reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
6149 ipw_write_reg32(priv, reg, *(u32 *) & fr);
6150 }
6151
6152 static void ipw_abort_scan(struct ipw_priv *priv)
6153 {
6154 int err;
6155
6156 if (priv->status & STATUS_SCAN_ABORTING) {
6157 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
6158 return;
6159 }
6160 priv->status |= STATUS_SCAN_ABORTING;
6161
6162 err = ipw_send_scan_abort(priv);
6163 if (err)
6164 IPW_DEBUG_HC("Request to abort scan failed.\n");
6165 }
6166
6167 static void ipw_add_scan_channels(struct ipw_priv *priv,
6168 struct ipw_scan_request_ext *scan,
6169 int scan_type)
6170 {
6171 int channel_index = 0;
6172 const struct libipw_geo *geo;
6173 int i;
6174
6175 geo = libipw_get_geo(priv->ieee);
6176
6177 if (priv->ieee->freq_band & LIBIPW_52GHZ_BAND) {
6178 int start = channel_index;
6179 for (i = 0; i < geo->a_channels; i++) {
6180 if ((priv->status & STATUS_ASSOCIATED) &&
6181 geo->a[i].channel == priv->channel)
6182 continue;
6183 channel_index++;
6184 scan->channels_list[channel_index] = geo->a[i].channel;
6185 ipw_set_scan_type(scan, channel_index,
6186 geo->a[i].
6187 flags & LIBIPW_CH_PASSIVE_ONLY ?
6188 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN :
6189 scan_type);
6190 }
6191
6192 if (start != channel_index) {
6193 scan->channels_list[start] = (u8) (IPW_A_MODE << 6) |
6194 (channel_index - start);
6195 channel_index++;
6196 }
6197 }
6198
6199 if (priv->ieee->freq_band & LIBIPW_24GHZ_BAND) {
6200 int start = channel_index;
6201 if (priv->config & CFG_SPEED_SCAN) {
6202 int index;
6203 u8 channels[LIBIPW_24GHZ_CHANNELS] = {
6204 /* nop out the list */
6205 [0] = 0
6206 };
6207
6208 u8 channel;
6209 while (channel_index < IPW_SCAN_CHANNELS - 1) {
6210 channel =
6211 priv->speed_scan[priv->speed_scan_pos];
6212 if (channel == 0) {
6213 priv->speed_scan_pos = 0;
6214 channel = priv->speed_scan[0];
6215 }
6216 if ((priv->status & STATUS_ASSOCIATED) &&
6217 channel == priv->channel) {
6218 priv->speed_scan_pos++;
6219 continue;
6220 }
6221
6222 /* If this channel has already been
6223 * added in scan, break from loop
6224 * and this will be the first channel
6225 * in the next scan.
6226 */
6227 if (channels[channel - 1] != 0)
6228 break;
6229
6230 channels[channel - 1] = 1;
6231 priv->speed_scan_pos++;
6232 channel_index++;
6233 scan->channels_list[channel_index] = channel;
6234 index =
6235 libipw_channel_to_index(priv->ieee, channel);
6236 ipw_set_scan_type(scan, channel_index,
6237 geo->bg[index].
6238 flags &
6239 LIBIPW_CH_PASSIVE_ONLY ?
6240 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6241 : scan_type);
6242 }
6243 } else {
6244 for (i = 0; i < geo->bg_channels; i++) {
6245 if ((priv->status & STATUS_ASSOCIATED) &&
6246 geo->bg[i].channel == priv->channel)
6247 continue;
6248 channel_index++;
6249 scan->channels_list[channel_index] =
6250 geo->bg[i].channel;
6251 ipw_set_scan_type(scan, channel_index,
6252 geo->bg[i].
6253 flags &
6254 LIBIPW_CH_PASSIVE_ONLY ?
6255 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6256 : scan_type);
6257 }
6258 }
6259
6260 if (start != channel_index) {
6261 scan->channels_list[start] = (u8) (IPW_B_MODE << 6) |
6262 (channel_index - start);
6263 }
6264 }
6265 }
6266
6267 static int ipw_passive_dwell_time(struct ipw_priv *priv)
6268 {
6269 /* staying on passive channels longer than the DTIM interval during a
6270 * scan, while associated, causes the firmware to cancel the scan
6271 * without notification. Hence, don't stay on passive channels longer
6272 * than the beacon interval.
6273 */
6274 if (priv->status & STATUS_ASSOCIATED
6275 && priv->assoc_network->beacon_interval > 10)
6276 return priv->assoc_network->beacon_interval - 10;
6277 else
6278 return 120;
6279 }
6280
6281 static int ipw_request_scan_helper(struct ipw_priv *priv, int type, int direct)
6282 {
6283 struct ipw_scan_request_ext scan;
6284 int err = 0, scan_type;
6285
6286 if (!(priv->status & STATUS_INIT) ||
6287 (priv->status & STATUS_EXIT_PENDING))
6288 return 0;
6289
6290 mutex_lock(&priv->mutex);
6291
6292 if (direct && (priv->direct_scan_ssid_len == 0)) {
6293 IPW_DEBUG_HC("Direct scan requested but no SSID to scan for\n");
6294 priv->status &= ~STATUS_DIRECT_SCAN_PENDING;
6295 goto done;
6296 }
6297
6298 if (priv->status & STATUS_SCANNING) {
6299 IPW_DEBUG_HC("Concurrent scan requested. Queuing.\n");
6300 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6301 STATUS_SCAN_PENDING;
6302 goto done;
6303 }
6304
6305 if (!(priv->status & STATUS_SCAN_FORCED) &&
6306 priv->status & STATUS_SCAN_ABORTING) {
6307 IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6308 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6309 STATUS_SCAN_PENDING;
6310 goto done;
6311 }
6312
6313 if (priv->status & STATUS_RF_KILL_MASK) {
6314 IPW_DEBUG_HC("Queuing scan due to RF Kill activation\n");
6315 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6316 STATUS_SCAN_PENDING;
6317 goto done;
6318 }
6319
6320 memset(&scan, 0, sizeof(scan));
6321 scan.full_scan_index = cpu_to_le32(libipw_get_scans(priv->ieee));
6322
6323 if (type == IW_SCAN_TYPE_PASSIVE) {
6324 IPW_DEBUG_WX("use passive scanning\n");
6325 scan_type = IPW_SCAN_PASSIVE_FULL_DWELL_SCAN;
6326 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6327 cpu_to_le16(ipw_passive_dwell_time(priv));
6328 ipw_add_scan_channels(priv, &scan, scan_type);
6329 goto send_request;
6330 }
6331
6332 /* Use active scan by default. */
6333 if (priv->config & CFG_SPEED_SCAN)
6334 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6335 cpu_to_le16(30);
6336 else
6337 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6338 cpu_to_le16(20);
6339
6340 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
6341 cpu_to_le16(20);
6342
6343 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6344 cpu_to_le16(ipw_passive_dwell_time(priv));
6345 scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20);
6346
6347 #ifdef CONFIG_IPW2200_MONITOR
6348 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
6349 u8 channel;
6350 u8 band = 0;
6351
6352 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
6353 case LIBIPW_52GHZ_BAND:
6354 band = (u8) (IPW_A_MODE << 6) | 1;
6355 channel = priv->channel;
6356 break;
6357
6358 case LIBIPW_24GHZ_BAND:
6359 band = (u8) (IPW_B_MODE << 6) | 1;
6360 channel = priv->channel;
6361 break;
6362
6363 default:
6364 band = (u8) (IPW_B_MODE << 6) | 1;
6365 channel = 9;
6366 break;
6367 }
6368
6369 scan.channels_list[0] = band;
6370 scan.channels_list[1] = channel;
6371 ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN);
6372
6373 /* NOTE: The card will sit on this channel for this time
6374 * period. Scan aborts are timing sensitive and frequently
6375 * result in firmware restarts. As such, it is best to
6376 * set a small dwell_time here and just keep re-issuing
6377 * scans. Otherwise fast channel hopping will not actually
6378 * hop channels.
6379 *
6380 * TODO: Move SPEED SCAN support to all modes and bands */
6381 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6382 cpu_to_le16(2000);
6383 } else {
6384 #endif /* CONFIG_IPW2200_MONITOR */
6385 /* Honor direct scans first, otherwise if we are roaming make
6386 * this a direct scan for the current network. Finally,
6387 * ensure that every other scan is a fast channel hop scan */
6388 if (direct) {
6389 err = ipw_send_ssid(priv, priv->direct_scan_ssid,
6390 priv->direct_scan_ssid_len);
6391 if (err) {
6392 IPW_DEBUG_HC("Attempt to send SSID command "
6393 "failed\n");
6394 goto done;
6395 }
6396
6397 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6398 } else if ((priv->status & STATUS_ROAMING)
6399 || (!(priv->status & STATUS_ASSOCIATED)
6400 && (priv->config & CFG_STATIC_ESSID)
6401 && (le32_to_cpu(scan.full_scan_index) % 2))) {
6402 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
6403 if (err) {
6404 IPW_DEBUG_HC("Attempt to send SSID command "
6405 "failed.\n");
6406 goto done;
6407 }
6408
6409 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6410 } else
6411 scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
6412
6413 ipw_add_scan_channels(priv, &scan, scan_type);
6414 #ifdef CONFIG_IPW2200_MONITOR
6415 }
6416 #endif
6417
6418 send_request:
6419 err = ipw_send_scan_request_ext(priv, &scan);
6420 if (err) {
6421 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
6422 goto done;
6423 }
6424
6425 priv->status |= STATUS_SCANNING;
6426 if (direct) {
6427 priv->status &= ~STATUS_DIRECT_SCAN_PENDING;
6428 priv->direct_scan_ssid_len = 0;
6429 } else
6430 priv->status &= ~STATUS_SCAN_PENDING;
6431
6432 schedule_delayed_work(&priv->scan_check, IPW_SCAN_CHECK_WATCHDOG);
6433 done:
6434 mutex_unlock(&priv->mutex);
6435 return err;
6436 }
6437
6438 static void ipw_request_passive_scan(struct work_struct *work)
6439 {
6440 struct ipw_priv *priv =
6441 container_of(work, struct ipw_priv, request_passive_scan.work);
6442 ipw_request_scan_helper(priv, IW_SCAN_TYPE_PASSIVE, 0);
6443 }
6444
6445 static void ipw_request_scan(struct work_struct *work)
6446 {
6447 struct ipw_priv *priv =
6448 container_of(work, struct ipw_priv, request_scan.work);
6449 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 0);
6450 }
6451
6452 static void ipw_request_direct_scan(struct work_struct *work)
6453 {
6454 struct ipw_priv *priv =
6455 container_of(work, struct ipw_priv, request_direct_scan.work);
6456 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 1);
6457 }
6458
6459 static void ipw_bg_abort_scan(struct work_struct *work)
6460 {
6461 struct ipw_priv *priv =
6462 container_of(work, struct ipw_priv, abort_scan);
6463 mutex_lock(&priv->mutex);
6464 ipw_abort_scan(priv);
6465 mutex_unlock(&priv->mutex);
6466 }
6467
6468 static int ipw_wpa_enable(struct ipw_priv *priv, int value)
6469 {
6470 /* This is called when wpa_supplicant loads and closes the driver
6471 * interface. */
6472 priv->ieee->wpa_enabled = value;
6473 return 0;
6474 }
6475
6476 static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value)
6477 {
6478 struct libipw_device *ieee = priv->ieee;
6479 struct libipw_security sec = {
6480 .flags = SEC_AUTH_MODE,
6481 };
6482 int ret = 0;
6483
6484 if (value & IW_AUTH_ALG_SHARED_KEY) {
6485 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
6486 ieee->open_wep = 0;
6487 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
6488 sec.auth_mode = WLAN_AUTH_OPEN;
6489 ieee->open_wep = 1;
6490 } else if (value & IW_AUTH_ALG_LEAP) {
6491 sec.auth_mode = WLAN_AUTH_LEAP;
6492 ieee->open_wep = 1;
6493 } else
6494 return -EINVAL;
6495
6496 if (ieee->set_security)
6497 ieee->set_security(ieee->dev, &sec);
6498 else
6499 ret = -EOPNOTSUPP;
6500
6501 return ret;
6502 }
6503
6504 static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie,
6505 int wpa_ie_len)
6506 {
6507 /* make sure WPA is enabled */
6508 ipw_wpa_enable(priv, 1);
6509 }
6510
6511 static int ipw_set_rsn_capa(struct ipw_priv *priv,
6512 char *capabilities, int length)
6513 {
6514 IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n");
6515
6516 return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length,
6517 capabilities);
6518 }
6519
6520 /*
6521 * WE-18 support
6522 */
6523
6524 /* SIOCSIWGENIE */
6525 static int ipw_wx_set_genie(struct net_device *dev,
6526 struct iw_request_info *info,
6527 union iwreq_data *wrqu, char *extra)
6528 {
6529 struct ipw_priv *priv = libipw_priv(dev);
6530 struct libipw_device *ieee = priv->ieee;
6531 u8 *buf;
6532 int err = 0;
6533
6534 if (wrqu->data.length > MAX_WPA_IE_LEN ||
6535 (wrqu->data.length && extra == NULL))
6536 return -EINVAL;
6537
6538 if (wrqu->data.length) {
6539 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
6540 if (buf == NULL) {
6541 err = -ENOMEM;
6542 goto out;
6543 }
6544
6545 kfree(ieee->wpa_ie);
6546 ieee->wpa_ie = buf;
6547 ieee->wpa_ie_len = wrqu->data.length;
6548 } else {
6549 kfree(ieee->wpa_ie);
6550 ieee->wpa_ie = NULL;
6551 ieee->wpa_ie_len = 0;
6552 }
6553
6554 ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
6555 out:
6556 return err;
6557 }
6558
6559 /* SIOCGIWGENIE */
6560 static int ipw_wx_get_genie(struct net_device *dev,
6561 struct iw_request_info *info,
6562 union iwreq_data *wrqu, char *extra)
6563 {
6564 struct ipw_priv *priv = libipw_priv(dev);
6565 struct libipw_device *ieee = priv->ieee;
6566 int err = 0;
6567
6568 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
6569 wrqu->data.length = 0;
6570 goto out;
6571 }
6572
6573 if (wrqu->data.length < ieee->wpa_ie_len) {
6574 err = -E2BIG;
6575 goto out;
6576 }
6577
6578 wrqu->data.length = ieee->wpa_ie_len;
6579 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
6580
6581 out:
6582 return err;
6583 }
6584
6585 static int wext_cipher2level(int cipher)
6586 {
6587 switch (cipher) {
6588 case IW_AUTH_CIPHER_NONE:
6589 return SEC_LEVEL_0;
6590 case IW_AUTH_CIPHER_WEP40:
6591 case IW_AUTH_CIPHER_WEP104:
6592 return SEC_LEVEL_1;
6593 case IW_AUTH_CIPHER_TKIP:
6594 return SEC_LEVEL_2;
6595 case IW_AUTH_CIPHER_CCMP:
6596 return SEC_LEVEL_3;
6597 default:
6598 return -1;
6599 }
6600 }
6601
6602 /* SIOCSIWAUTH */
6603 static int ipw_wx_set_auth(struct net_device *dev,
6604 struct iw_request_info *info,
6605 union iwreq_data *wrqu, char *extra)
6606 {
6607 struct ipw_priv *priv = libipw_priv(dev);
6608 struct libipw_device *ieee = priv->ieee;
6609 struct iw_param *param = &wrqu->param;
6610 struct lib80211_crypt_data *crypt;
6611 unsigned long flags;
6612 int ret = 0;
6613
6614 switch (param->flags & IW_AUTH_INDEX) {
6615 case IW_AUTH_WPA_VERSION:
6616 break;
6617 case IW_AUTH_CIPHER_PAIRWISE:
6618 ipw_set_hw_decrypt_unicast(priv,
6619 wext_cipher2level(param->value));
6620 break;
6621 case IW_AUTH_CIPHER_GROUP:
6622 ipw_set_hw_decrypt_multicast(priv,
6623 wext_cipher2level(param->value));
6624 break;
6625 case IW_AUTH_KEY_MGMT:
6626 /*
6627 * ipw2200 does not use these parameters
6628 */
6629 break;
6630
6631 case IW_AUTH_TKIP_COUNTERMEASURES:
6632 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
6633 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
6634 break;
6635
6636 flags = crypt->ops->get_flags(crypt->priv);
6637
6638 if (param->value)
6639 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6640 else
6641 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6642
6643 crypt->ops->set_flags(flags, crypt->priv);
6644
6645 break;
6646
6647 case IW_AUTH_DROP_UNENCRYPTED:{
6648 /* HACK:
6649 *
6650 * wpa_supplicant calls set_wpa_enabled when the driver
6651 * is loaded and unloaded, regardless of if WPA is being
6652 * used. No other calls are made which can be used to
6653 * determine if encryption will be used or not prior to
6654 * association being expected. If encryption is not being
6655 * used, drop_unencrypted is set to false, else true -- we
6656 * can use this to determine if the CAP_PRIVACY_ON bit should
6657 * be set.
6658 */
6659 struct libipw_security sec = {
6660 .flags = SEC_ENABLED,
6661 .enabled = param->value,
6662 };
6663 priv->ieee->drop_unencrypted = param->value;
6664 /* We only change SEC_LEVEL for open mode. Others
6665 * are set by ipw_wpa_set_encryption.
6666 */
6667 if (!param->value) {
6668 sec.flags |= SEC_LEVEL;
6669 sec.level = SEC_LEVEL_0;
6670 } else {
6671 sec.flags |= SEC_LEVEL;
6672 sec.level = SEC_LEVEL_1;
6673 }
6674 if (priv->ieee->set_security)
6675 priv->ieee->set_security(priv->ieee->dev, &sec);
6676 break;
6677 }
6678
6679 case IW_AUTH_80211_AUTH_ALG:
6680 ret = ipw_wpa_set_auth_algs(priv, param->value);
6681 break;
6682
6683 case IW_AUTH_WPA_ENABLED:
6684 ret = ipw_wpa_enable(priv, param->value);
6685 ipw_disassociate(priv);
6686 break;
6687
6688 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6689 ieee->ieee802_1x = param->value;
6690 break;
6691
6692 case IW_AUTH_PRIVACY_INVOKED:
6693 ieee->privacy_invoked = param->value;
6694 break;
6695
6696 default:
6697 return -EOPNOTSUPP;
6698 }
6699 return ret;
6700 }
6701
6702 /* SIOCGIWAUTH */
6703 static int ipw_wx_get_auth(struct net_device *dev,
6704 struct iw_request_info *info,
6705 union iwreq_data *wrqu, char *extra)
6706 {
6707 struct ipw_priv *priv = libipw_priv(dev);
6708 struct libipw_device *ieee = priv->ieee;
6709 struct lib80211_crypt_data *crypt;
6710 struct iw_param *param = &wrqu->param;
6711
6712 switch (param->flags & IW_AUTH_INDEX) {
6713 case IW_AUTH_WPA_VERSION:
6714 case IW_AUTH_CIPHER_PAIRWISE:
6715 case IW_AUTH_CIPHER_GROUP:
6716 case IW_AUTH_KEY_MGMT:
6717 /*
6718 * wpa_supplicant will control these internally
6719 */
6720 return -EOPNOTSUPP;
6721
6722 case IW_AUTH_TKIP_COUNTERMEASURES:
6723 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
6724 if (!crypt || !crypt->ops->get_flags)
6725 break;
6726
6727 param->value = (crypt->ops->get_flags(crypt->priv) &
6728 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
6729
6730 break;
6731
6732 case IW_AUTH_DROP_UNENCRYPTED:
6733 param->value = ieee->drop_unencrypted;
6734 break;
6735
6736 case IW_AUTH_80211_AUTH_ALG:
6737 param->value = ieee->sec.auth_mode;
6738 break;
6739
6740 case IW_AUTH_WPA_ENABLED:
6741 param->value = ieee->wpa_enabled;
6742 break;
6743
6744 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6745 param->value = ieee->ieee802_1x;
6746 break;
6747
6748 case IW_AUTH_ROAMING_CONTROL:
6749 case IW_AUTH_PRIVACY_INVOKED:
6750 param->value = ieee->privacy_invoked;
6751 break;
6752
6753 default:
6754 return -EOPNOTSUPP;
6755 }
6756 return 0;
6757 }
6758
6759 /* SIOCSIWENCODEEXT */
6760 static int ipw_wx_set_encodeext(struct net_device *dev,
6761 struct iw_request_info *info,
6762 union iwreq_data *wrqu, char *extra)
6763 {
6764 struct ipw_priv *priv = libipw_priv(dev);
6765 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6766
6767 if (hwcrypto) {
6768 if (ext->alg == IW_ENCODE_ALG_TKIP) {
6769 /* IPW HW can't build TKIP MIC,
6770 host decryption still needed */
6771 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
6772 priv->ieee->host_mc_decrypt = 1;
6773 else {
6774 priv->ieee->host_encrypt = 0;
6775 priv->ieee->host_encrypt_msdu = 1;
6776 priv->ieee->host_decrypt = 1;
6777 }
6778 } else {
6779 priv->ieee->host_encrypt = 0;
6780 priv->ieee->host_encrypt_msdu = 0;
6781 priv->ieee->host_decrypt = 0;
6782 priv->ieee->host_mc_decrypt = 0;
6783 }
6784 }
6785
6786 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
6787 }
6788
6789 /* SIOCGIWENCODEEXT */
6790 static int ipw_wx_get_encodeext(struct net_device *dev,
6791 struct iw_request_info *info,
6792 union iwreq_data *wrqu, char *extra)
6793 {
6794 struct ipw_priv *priv = libipw_priv(dev);
6795 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
6796 }
6797
6798 /* SIOCSIWMLME */
6799 static int ipw_wx_set_mlme(struct net_device *dev,
6800 struct iw_request_info *info,
6801 union iwreq_data *wrqu, char *extra)
6802 {
6803 struct ipw_priv *priv = libipw_priv(dev);
6804 struct iw_mlme *mlme = (struct iw_mlme *)extra;
6805 __le16 reason;
6806
6807 reason = cpu_to_le16(mlme->reason_code);
6808
6809 switch (mlme->cmd) {
6810 case IW_MLME_DEAUTH:
6811 /* silently ignore */
6812 break;
6813
6814 case IW_MLME_DISASSOC:
6815 ipw_disassociate(priv);
6816 break;
6817
6818 default:
6819 return -EOPNOTSUPP;
6820 }
6821 return 0;
6822 }
6823
6824 #ifdef CONFIG_IPW2200_QOS
6825
6826 /* QoS */
6827 /*
6828 * get the modulation type of the current network or
6829 * the card current mode
6830 */
6831 static u8 ipw_qos_current_mode(struct ipw_priv * priv)
6832 {
6833 u8 mode = 0;
6834
6835 if (priv->status & STATUS_ASSOCIATED) {
6836 unsigned long flags;
6837
6838 spin_lock_irqsave(&priv->ieee->lock, flags);
6839 mode = priv->assoc_network->mode;
6840 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6841 } else {
6842 mode = priv->ieee->mode;
6843 }
6844 IPW_DEBUG_QOS("QoS network/card mode %d\n", mode);
6845 return mode;
6846 }
6847
6848 /*
6849 * Handle management frame beacon and probe response
6850 */
6851 static int ipw_qos_handle_probe_response(struct ipw_priv *priv,
6852 int active_network,
6853 struct libipw_network *network)
6854 {
6855 u32 size = sizeof(struct libipw_qos_parameters);
6856
6857 if (network->capability & WLAN_CAPABILITY_IBSS)
6858 network->qos_data.active = network->qos_data.supported;
6859
6860 if (network->flags & NETWORK_HAS_QOS_MASK) {
6861 if (active_network &&
6862 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
6863 network->qos_data.active = network->qos_data.supported;
6864
6865 if ((network->qos_data.active == 1) && (active_network == 1) &&
6866 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
6867 (network->qos_data.old_param_count !=
6868 network->qos_data.param_count)) {
6869 network->qos_data.old_param_count =
6870 network->qos_data.param_count;
6871 schedule_work(&priv->qos_activate);
6872 IPW_DEBUG_QOS("QoS parameters change call "
6873 "qos_activate\n");
6874 }
6875 } else {
6876 if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B))
6877 memcpy(&network->qos_data.parameters,
6878 &def_parameters_CCK, size);
6879 else
6880 memcpy(&network->qos_data.parameters,
6881 &def_parameters_OFDM, size);
6882
6883 if ((network->qos_data.active == 1) && (active_network == 1)) {
6884 IPW_DEBUG_QOS("QoS was disabled call qos_activate\n");
6885 schedule_work(&priv->qos_activate);
6886 }
6887
6888 network->qos_data.active = 0;
6889 network->qos_data.supported = 0;
6890 }
6891 if ((priv->status & STATUS_ASSOCIATED) &&
6892 (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) {
6893 if (!ether_addr_equal(network->bssid, priv->bssid))
6894 if (network->capability & WLAN_CAPABILITY_IBSS)
6895 if ((network->ssid_len ==
6896 priv->assoc_network->ssid_len) &&
6897 !memcmp(network->ssid,
6898 priv->assoc_network->ssid,
6899 network->ssid_len)) {
6900 schedule_work(&priv->merge_networks);
6901 }
6902 }
6903
6904 return 0;
6905 }
6906
6907 /*
6908 * This function set up the firmware to support QoS. It sends
6909 * IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO
6910 */
6911 static int ipw_qos_activate(struct ipw_priv *priv,
6912 struct libipw_qos_data *qos_network_data)
6913 {
6914 int err;
6915 struct libipw_qos_parameters qos_parameters[QOS_QOS_SETS];
6916 struct libipw_qos_parameters *active_one = NULL;
6917 u32 size = sizeof(struct libipw_qos_parameters);
6918 u32 burst_duration;
6919 int i;
6920 u8 type;
6921
6922 type = ipw_qos_current_mode(priv);
6923
6924 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]);
6925 memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size);
6926 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]);
6927 memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size);
6928
6929 if (qos_network_data == NULL) {
6930 if (type == IEEE_B) {
6931 IPW_DEBUG_QOS("QoS activate network mode %d\n", type);
6932 active_one = &def_parameters_CCK;
6933 } else
6934 active_one = &def_parameters_OFDM;
6935
6936 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6937 burst_duration = ipw_qos_get_burst_duration(priv);
6938 for (i = 0; i < QOS_QUEUE_NUM; i++)
6939 qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] =
6940 cpu_to_le16(burst_duration);
6941 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6942 if (type == IEEE_B) {
6943 IPW_DEBUG_QOS("QoS activate IBSS network mode %d\n",
6944 type);
6945 if (priv->qos_data.qos_enable == 0)
6946 active_one = &def_parameters_CCK;
6947 else
6948 active_one = priv->qos_data.def_qos_parm_CCK;
6949 } else {
6950 if (priv->qos_data.qos_enable == 0)
6951 active_one = &def_parameters_OFDM;
6952 else
6953 active_one = priv->qos_data.def_qos_parm_OFDM;
6954 }
6955 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6956 } else {
6957 unsigned long flags;
6958 int active;
6959
6960 spin_lock_irqsave(&priv->ieee->lock, flags);
6961 active_one = &(qos_network_data->parameters);
6962 qos_network_data->old_param_count =
6963 qos_network_data->param_count;
6964 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6965 active = qos_network_data->supported;
6966 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6967
6968 if (active == 0) {
6969 burst_duration = ipw_qos_get_burst_duration(priv);
6970 for (i = 0; i < QOS_QUEUE_NUM; i++)
6971 qos_parameters[QOS_PARAM_SET_ACTIVE].
6972 tx_op_limit[i] = cpu_to_le16(burst_duration);
6973 }
6974 }
6975
6976 IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n");
6977 err = ipw_send_qos_params_command(priv, &qos_parameters[0]);
6978 if (err)
6979 IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n");
6980
6981 return err;
6982 }
6983
6984 /*
6985 * send IPW_CMD_WME_INFO to the firmware
6986 */
6987 static int ipw_qos_set_info_element(struct ipw_priv *priv)
6988 {
6989 int ret = 0;
6990 struct libipw_qos_information_element qos_info;
6991
6992 if (priv == NULL)
6993 return -1;
6994
6995 qos_info.elementID = QOS_ELEMENT_ID;
6996 qos_info.length = sizeof(struct libipw_qos_information_element) - 2;
6997
6998 qos_info.version = QOS_VERSION_1;
6999 qos_info.ac_info = 0;
7000
7001 memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN);
7002 qos_info.qui_type = QOS_OUI_TYPE;
7003 qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE;
7004
7005 ret = ipw_send_qos_info_command(priv, &qos_info);
7006 if (ret != 0) {
7007 IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n");
7008 }
7009 return ret;
7010 }
7011
7012 /*
7013 * Set the QoS parameter with the association request structure
7014 */
7015 static int ipw_qos_association(struct ipw_priv *priv,
7016 struct libipw_network *network)
7017 {
7018 int err = 0;
7019 struct libipw_qos_data *qos_data = NULL;
7020 struct libipw_qos_data ibss_data = {
7021 .supported = 1,
7022 .active = 1,
7023 };
7024
7025 switch (priv->ieee->iw_mode) {
7026 case IW_MODE_ADHOC:
7027 BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS));
7028
7029 qos_data = &ibss_data;
7030 break;
7031
7032 case IW_MODE_INFRA:
7033 qos_data = &network->qos_data;
7034 break;
7035
7036 default:
7037 BUG();
7038 break;
7039 }
7040
7041 err = ipw_qos_activate(priv, qos_data);
7042 if (err) {
7043 priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC;
7044 return err;
7045 }
7046
7047 if (priv->qos_data.qos_enable && qos_data->supported) {
7048 IPW_DEBUG_QOS("QoS will be enabled for this association\n");
7049 priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC;
7050 return ipw_qos_set_info_element(priv);
7051 }
7052
7053 return 0;
7054 }
7055
7056 /*
7057 * handling the beaconing responses. if we get different QoS setting
7058 * off the network from the associated setting, adjust the QoS
7059 * setting
7060 */
7061 static int ipw_qos_association_resp(struct ipw_priv *priv,
7062 struct libipw_network *network)
7063 {
7064 int ret = 0;
7065 unsigned long flags;
7066 u32 size = sizeof(struct libipw_qos_parameters);
7067 int set_qos_param = 0;
7068
7069 if ((priv == NULL) || (network == NULL) ||
7070 (priv->assoc_network == NULL))
7071 return ret;
7072
7073 if (!(priv->status & STATUS_ASSOCIATED))
7074 return ret;
7075
7076 if ((priv->ieee->iw_mode != IW_MODE_INFRA))
7077 return ret;
7078
7079 spin_lock_irqsave(&priv->ieee->lock, flags);
7080 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
7081 memcpy(&priv->assoc_network->qos_data, &network->qos_data,
7082 sizeof(struct libipw_qos_data));
7083 priv->assoc_network->qos_data.active = 1;
7084 if ((network->qos_data.old_param_count !=
7085 network->qos_data.param_count)) {
7086 set_qos_param = 1;
7087 network->qos_data.old_param_count =
7088 network->qos_data.param_count;
7089 }
7090
7091 } else {
7092 if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B))
7093 memcpy(&priv->assoc_network->qos_data.parameters,
7094 &def_parameters_CCK, size);
7095 else
7096 memcpy(&priv->assoc_network->qos_data.parameters,
7097 &def_parameters_OFDM, size);
7098 priv->assoc_network->qos_data.active = 0;
7099 priv->assoc_network->qos_data.supported = 0;
7100 set_qos_param = 1;
7101 }
7102
7103 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7104
7105 if (set_qos_param == 1)
7106 schedule_work(&priv->qos_activate);
7107
7108 return ret;
7109 }
7110
7111 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv)
7112 {
7113 u32 ret = 0;
7114
7115 if ((priv == NULL))
7116 return 0;
7117
7118 if (!(priv->ieee->modulation & LIBIPW_OFDM_MODULATION))
7119 ret = priv->qos_data.burst_duration_CCK;
7120 else
7121 ret = priv->qos_data.burst_duration_OFDM;
7122
7123 return ret;
7124 }
7125
7126 /*
7127 * Initialize the setting of QoS global
7128 */
7129 static void ipw_qos_init(struct ipw_priv *priv, int enable,
7130 int burst_enable, u32 burst_duration_CCK,
7131 u32 burst_duration_OFDM)
7132 {
7133 priv->qos_data.qos_enable = enable;
7134
7135 if (priv->qos_data.qos_enable) {
7136 priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK;
7137 priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM;
7138 IPW_DEBUG_QOS("QoS is enabled\n");
7139 } else {
7140 priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK;
7141 priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM;
7142 IPW_DEBUG_QOS("QoS is not enabled\n");
7143 }
7144
7145 priv->qos_data.burst_enable = burst_enable;
7146
7147 if (burst_enable) {
7148 priv->qos_data.burst_duration_CCK = burst_duration_CCK;
7149 priv->qos_data.burst_duration_OFDM = burst_duration_OFDM;
7150 } else {
7151 priv->qos_data.burst_duration_CCK = 0;
7152 priv->qos_data.burst_duration_OFDM = 0;
7153 }
7154 }
7155
7156 /*
7157 * map the packet priority to the right TX Queue
7158 */
7159 static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority)
7160 {
7161 if (priority > 7 || !priv->qos_data.qos_enable)
7162 priority = 0;
7163
7164 return from_priority_to_tx_queue[priority] - 1;
7165 }
7166
7167 static int ipw_is_qos_active(struct net_device *dev,
7168 struct sk_buff *skb)
7169 {
7170 struct ipw_priv *priv = libipw_priv(dev);
7171 struct libipw_qos_data *qos_data = NULL;
7172 int active, supported;
7173 u8 *daddr = skb->data + ETH_ALEN;
7174 int unicast = !is_multicast_ether_addr(daddr);
7175
7176 if (!(priv->status & STATUS_ASSOCIATED))
7177 return 0;
7178
7179 qos_data = &priv->assoc_network->qos_data;
7180
7181 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7182 if (unicast == 0)
7183 qos_data->active = 0;
7184 else
7185 qos_data->active = qos_data->supported;
7186 }
7187 active = qos_data->active;
7188 supported = qos_data->supported;
7189 IPW_DEBUG_QOS("QoS %d network is QoS active %d supported %d "
7190 "unicast %d\n",
7191 priv->qos_data.qos_enable, active, supported, unicast);
7192 if (active && priv->qos_data.qos_enable)
7193 return 1;
7194
7195 return 0;
7196
7197 }
7198 /*
7199 * add QoS parameter to the TX command
7200 */
7201 static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv,
7202 u16 priority,
7203 struct tfd_data *tfd)
7204 {
7205 int tx_queue_id = 0;
7206
7207
7208 tx_queue_id = from_priority_to_tx_queue[priority] - 1;
7209 tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED;
7210
7211 if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) {
7212 tfd->tx_flags &= ~DCT_FLAG_ACK_REQD;
7213 tfd->tfd.tfd_26.mchdr.qos_ctrl |= cpu_to_le16(CTRL_QOS_NO_ACK);
7214 }
7215 return 0;
7216 }
7217
7218 /*
7219 * background support to run QoS activate functionality
7220 */
7221 static void ipw_bg_qos_activate(struct work_struct *work)
7222 {
7223 struct ipw_priv *priv =
7224 container_of(work, struct ipw_priv, qos_activate);
7225
7226 mutex_lock(&priv->mutex);
7227
7228 if (priv->status & STATUS_ASSOCIATED)
7229 ipw_qos_activate(priv, &(priv->assoc_network->qos_data));
7230
7231 mutex_unlock(&priv->mutex);
7232 }
7233
7234 static int ipw_handle_probe_response(struct net_device *dev,
7235 struct libipw_probe_response *resp,
7236 struct libipw_network *network)
7237 {
7238 struct ipw_priv *priv = libipw_priv(dev);
7239 int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7240 (network == priv->assoc_network));
7241
7242 ipw_qos_handle_probe_response(priv, active_network, network);
7243
7244 return 0;
7245 }
7246
7247 static int ipw_handle_beacon(struct net_device *dev,
7248 struct libipw_beacon *resp,
7249 struct libipw_network *network)
7250 {
7251 struct ipw_priv *priv = libipw_priv(dev);
7252 int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7253 (network == priv->assoc_network));
7254
7255 ipw_qos_handle_probe_response(priv, active_network, network);
7256
7257 return 0;
7258 }
7259
7260 static int ipw_handle_assoc_response(struct net_device *dev,
7261 struct libipw_assoc_response *resp,
7262 struct libipw_network *network)
7263 {
7264 struct ipw_priv *priv = libipw_priv(dev);
7265 ipw_qos_association_resp(priv, network);
7266 return 0;
7267 }
7268
7269 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters
7270 *qos_param)
7271 {
7272 return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS,
7273 sizeof(*qos_param) * 3, qos_param);
7274 }
7275
7276 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element
7277 *qos_param)
7278 {
7279 return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param),
7280 qos_param);
7281 }
7282
7283 #endif /* CONFIG_IPW2200_QOS */
7284
7285 static int ipw_associate_network(struct ipw_priv *priv,
7286 struct libipw_network *network,
7287 struct ipw_supported_rates *rates, int roaming)
7288 {
7289 int err;
7290
7291 if (priv->config & CFG_FIXED_RATE)
7292 ipw_set_fixed_rate(priv, network->mode);
7293
7294 if (!(priv->config & CFG_STATIC_ESSID)) {
7295 priv->essid_len = min(network->ssid_len,
7296 (u8) IW_ESSID_MAX_SIZE);
7297 memcpy(priv->essid, network->ssid, priv->essid_len);
7298 }
7299
7300 network->last_associate = jiffies;
7301
7302 memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
7303 priv->assoc_request.channel = network->channel;
7304 priv->assoc_request.auth_key = 0;
7305
7306 if ((priv->capability & CAP_PRIVACY_ON) &&
7307 (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) {
7308 priv->assoc_request.auth_type = AUTH_SHARED_KEY;
7309 priv->assoc_request.auth_key = priv->ieee->sec.active_key;
7310
7311 if (priv->ieee->sec.level == SEC_LEVEL_1)
7312 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
7313
7314 } else if ((priv->capability & CAP_PRIVACY_ON) &&
7315 (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP))
7316 priv->assoc_request.auth_type = AUTH_LEAP;
7317 else
7318 priv->assoc_request.auth_type = AUTH_OPEN;
7319
7320 if (priv->ieee->wpa_ie_len) {
7321 priv->assoc_request.policy_support = cpu_to_le16(0x02); /* RSN active */
7322 ipw_set_rsn_capa(priv, priv->ieee->wpa_ie,
7323 priv->ieee->wpa_ie_len);
7324 }
7325
7326 /*
7327 * It is valid for our ieee device to support multiple modes, but
7328 * when it comes to associating to a given network we have to choose
7329 * just one mode.
7330 */
7331 if (network->mode & priv->ieee->mode & IEEE_A)
7332 priv->assoc_request.ieee_mode = IPW_A_MODE;
7333 else if (network->mode & priv->ieee->mode & IEEE_G)
7334 priv->assoc_request.ieee_mode = IPW_G_MODE;
7335 else if (network->mode & priv->ieee->mode & IEEE_B)
7336 priv->assoc_request.ieee_mode = IPW_B_MODE;
7337
7338 priv->assoc_request.capability = cpu_to_le16(network->capability);
7339 if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
7340 && !(priv->config & CFG_PREAMBLE_LONG)) {
7341 priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE;
7342 } else {
7343 priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE;
7344
7345 /* Clear the short preamble if we won't be supporting it */
7346 priv->assoc_request.capability &=
7347 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
7348 }
7349
7350 /* Clear capability bits that aren't used in Ad Hoc */
7351 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7352 priv->assoc_request.capability &=
7353 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
7354
7355 IPW_DEBUG_ASSOC("%ssociation attempt: '%*pE', channel %d, 802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n",
7356 roaming ? "Rea" : "A",
7357 priv->essid_len, priv->essid,
7358 network->channel,
7359 ipw_modes[priv->assoc_request.ieee_mode],
7360 rates->num_rates,
7361 (priv->assoc_request.preamble_length ==
7362 DCT_FLAG_LONG_PREAMBLE) ? "long" : "short",
7363 network->capability &
7364 WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long",
7365 priv->capability & CAP_PRIVACY_ON ? "on " : "off",
7366 priv->capability & CAP_PRIVACY_ON ?
7367 (priv->capability & CAP_SHARED_KEY ? "(shared)" :
7368 "(open)") : "",
7369 priv->capability & CAP_PRIVACY_ON ? " key=" : "",
7370 priv->capability & CAP_PRIVACY_ON ?
7371 '1' + priv->ieee->sec.active_key : '.',
7372 priv->capability & CAP_PRIVACY_ON ? '.' : ' ');
7373
7374 priv->assoc_request.beacon_interval = cpu_to_le16(network->beacon_interval);
7375 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
7376 (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) {
7377 priv->assoc_request.assoc_type = HC_IBSS_START;
7378 priv->assoc_request.assoc_tsf_msw = 0;
7379 priv->assoc_request.assoc_tsf_lsw = 0;
7380 } else {
7381 if (unlikely(roaming))
7382 priv->assoc_request.assoc_type = HC_REASSOCIATE;
7383 else
7384 priv->assoc_request.assoc_type = HC_ASSOCIATE;
7385 priv->assoc_request.assoc_tsf_msw = cpu_to_le32(network->time_stamp[1]);
7386 priv->assoc_request.assoc_tsf_lsw = cpu_to_le32(network->time_stamp[0]);
7387 }
7388
7389 memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN);
7390
7391 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7392 eth_broadcast_addr(priv->assoc_request.dest);
7393 priv->assoc_request.atim_window = cpu_to_le16(network->atim_window);
7394 } else {
7395 memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN);
7396 priv->assoc_request.atim_window = 0;
7397 }
7398
7399 priv->assoc_request.listen_interval = cpu_to_le16(network->listen_interval);
7400
7401 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
7402 if (err) {
7403 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
7404 return err;
7405 }
7406
7407 rates->ieee_mode = priv->assoc_request.ieee_mode;
7408 rates->purpose = IPW_RATE_CONNECT;
7409 ipw_send_supported_rates(priv, rates);
7410
7411 if (priv->assoc_request.ieee_mode == IPW_G_MODE)
7412 priv->sys_config.dot11g_auto_detection = 1;
7413 else
7414 priv->sys_config.dot11g_auto_detection = 0;
7415
7416 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7417 priv->sys_config.answer_broadcast_ssid_probe = 1;
7418 else
7419 priv->sys_config.answer_broadcast_ssid_probe = 0;
7420
7421 err = ipw_send_system_config(priv);
7422 if (err) {
7423 IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
7424 return err;
7425 }
7426
7427 IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
7428 err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM);
7429 if (err) {
7430 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7431 return err;
7432 }
7433
7434 /*
7435 * If preemption is enabled, it is possible for the association
7436 * to complete before we return from ipw_send_associate. Therefore
7437 * we have to be sure and update our priviate data first.
7438 */
7439 priv->channel = network->channel;
7440 memcpy(priv->bssid, network->bssid, ETH_ALEN);
7441 priv->status |= STATUS_ASSOCIATING;
7442 priv->status &= ~STATUS_SECURITY_UPDATED;
7443
7444 priv->assoc_network = network;
7445
7446 #ifdef CONFIG_IPW2200_QOS
7447 ipw_qos_association(priv, network);
7448 #endif
7449
7450 err = ipw_send_associate(priv, &priv->assoc_request);
7451 if (err) {
7452 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7453 return err;
7454 }
7455
7456 IPW_DEBUG(IPW_DL_STATE, "associating: '%*pE' %pM\n",
7457 priv->essid_len, priv->essid, priv->bssid);
7458
7459 return 0;
7460 }
7461
7462 static void ipw_roam(void *data)
7463 {
7464 struct ipw_priv *priv = data;
7465 struct libipw_network *network = NULL;
7466 struct ipw_network_match match = {
7467 .network = priv->assoc_network
7468 };
7469
7470 /* The roaming process is as follows:
7471 *
7472 * 1. Missed beacon threshold triggers the roaming process by
7473 * setting the status ROAM bit and requesting a scan.
7474 * 2. When the scan completes, it schedules the ROAM work
7475 * 3. The ROAM work looks at all of the known networks for one that
7476 * is a better network than the currently associated. If none
7477 * found, the ROAM process is over (ROAM bit cleared)
7478 * 4. If a better network is found, a disassociation request is
7479 * sent.
7480 * 5. When the disassociation completes, the roam work is again
7481 * scheduled. The second time through, the driver is no longer
7482 * associated, and the newly selected network is sent an
7483 * association request.
7484 * 6. At this point ,the roaming process is complete and the ROAM
7485 * status bit is cleared.
7486 */
7487
7488 /* If we are no longer associated, and the roaming bit is no longer
7489 * set, then we are not actively roaming, so just return */
7490 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
7491 return;
7492
7493 if (priv->status & STATUS_ASSOCIATED) {
7494 /* First pass through ROAM process -- look for a better
7495 * network */
7496 unsigned long flags;
7497 u8 rssi = priv->assoc_network->stats.rssi;
7498 priv->assoc_network->stats.rssi = -128;
7499 spin_lock_irqsave(&priv->ieee->lock, flags);
7500 list_for_each_entry(network, &priv->ieee->network_list, list) {
7501 if (network != priv->assoc_network)
7502 ipw_best_network(priv, &match, network, 1);
7503 }
7504 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7505 priv->assoc_network->stats.rssi = rssi;
7506
7507 if (match.network == priv->assoc_network) {
7508 IPW_DEBUG_ASSOC("No better APs in this network to "
7509 "roam to.\n");
7510 priv->status &= ~STATUS_ROAMING;
7511 ipw_debug_config(priv);
7512 return;
7513 }
7514
7515 ipw_send_disassociate(priv, 1);
7516 priv->assoc_network = match.network;
7517
7518 return;
7519 }
7520
7521 /* Second pass through ROAM process -- request association */
7522 ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
7523 ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
7524 priv->status &= ~STATUS_ROAMING;
7525 }
7526
7527 static void ipw_bg_roam(struct work_struct *work)
7528 {
7529 struct ipw_priv *priv =
7530 container_of(work, struct ipw_priv, roam);
7531 mutex_lock(&priv->mutex);
7532 ipw_roam(priv);
7533 mutex_unlock(&priv->mutex);
7534 }
7535
7536 static int ipw_associate(void *data)
7537 {
7538 struct ipw_priv *priv = data;
7539
7540 struct libipw_network *network = NULL;
7541 struct ipw_network_match match = {
7542 .network = NULL
7543 };
7544 struct ipw_supported_rates *rates;
7545 struct list_head *element;
7546 unsigned long flags;
7547
7548 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7549 IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n");
7550 return 0;
7551 }
7552
7553 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
7554 IPW_DEBUG_ASSOC("Not attempting association (already in "
7555 "progress)\n");
7556 return 0;
7557 }
7558
7559 if (priv->status & STATUS_DISASSOCIATING) {
7560 IPW_DEBUG_ASSOC("Not attempting association (in "
7561 "disassociating)\n ");
7562 schedule_work(&priv->associate);
7563 return 0;
7564 }
7565
7566 if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) {
7567 IPW_DEBUG_ASSOC("Not attempting association (scanning or not "
7568 "initialized)\n");
7569 return 0;
7570 }
7571
7572 if (!(priv->config & CFG_ASSOCIATE) &&
7573 !(priv->config & (CFG_STATIC_ESSID | CFG_STATIC_BSSID))) {
7574 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
7575 return 0;
7576 }
7577
7578 /* Protect our use of the network_list */
7579 spin_lock_irqsave(&priv->ieee->lock, flags);
7580 list_for_each_entry(network, &priv->ieee->network_list, list)
7581 ipw_best_network(priv, &match, network, 0);
7582
7583 network = match.network;
7584 rates = &match.rates;
7585
7586 if (network == NULL &&
7587 priv->ieee->iw_mode == IW_MODE_ADHOC &&
7588 priv->config & CFG_ADHOC_CREATE &&
7589 priv->config & CFG_STATIC_ESSID &&
7590 priv->config & CFG_STATIC_CHANNEL) {
7591 /* Use oldest network if the free list is empty */
7592 if (list_empty(&priv->ieee->network_free_list)) {
7593 struct libipw_network *oldest = NULL;
7594 struct libipw_network *target;
7595
7596 list_for_each_entry(target, &priv->ieee->network_list, list) {
7597 if ((oldest == NULL) ||
7598 (target->last_scanned < oldest->last_scanned))
7599 oldest = target;
7600 }
7601
7602 /* If there are no more slots, expire the oldest */
7603 list_del(&oldest->list);
7604 target = oldest;
7605 IPW_DEBUG_ASSOC("Expired '%*pE' (%pM) from network list.\n",
7606 target->ssid_len, target->ssid,
7607 target->bssid);
7608 list_add_tail(&target->list,
7609 &priv->ieee->network_free_list);
7610 }
7611
7612 element = priv->ieee->network_free_list.next;
7613 network = list_entry(element, struct libipw_network, list);
7614 ipw_adhoc_create(priv, network);
7615 rates = &priv->rates;
7616 list_del(element);
7617 list_add_tail(&network->list, &priv->ieee->network_list);
7618 }
7619 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7620
7621 /* If we reached the end of the list, then we don't have any valid
7622 * matching APs */
7623 if (!network) {
7624 ipw_debug_config(priv);
7625
7626 if (!(priv->status & STATUS_SCANNING)) {
7627 if (!(priv->config & CFG_SPEED_SCAN))
7628 schedule_delayed_work(&priv->request_scan,
7629 SCAN_INTERVAL);
7630 else
7631 schedule_delayed_work(&priv->request_scan, 0);
7632 }
7633
7634 return 0;
7635 }
7636
7637 ipw_associate_network(priv, network, rates, 0);
7638
7639 return 1;
7640 }
7641
7642 static void ipw_bg_associate(struct work_struct *work)
7643 {
7644 struct ipw_priv *priv =
7645 container_of(work, struct ipw_priv, associate);
7646 mutex_lock(&priv->mutex);
7647 ipw_associate(priv);
7648 mutex_unlock(&priv->mutex);
7649 }
7650
7651 static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv,
7652 struct sk_buff *skb)
7653 {
7654 struct ieee80211_hdr *hdr;
7655 u16 fc;
7656
7657 hdr = (struct ieee80211_hdr *)skb->data;
7658 fc = le16_to_cpu(hdr->frame_control);
7659 if (!(fc & IEEE80211_FCTL_PROTECTED))
7660 return;
7661
7662 fc &= ~IEEE80211_FCTL_PROTECTED;
7663 hdr->frame_control = cpu_to_le16(fc);
7664 switch (priv->ieee->sec.level) {
7665 case SEC_LEVEL_3:
7666 /* Remove CCMP HDR */
7667 memmove(skb->data + LIBIPW_3ADDR_LEN,
7668 skb->data + LIBIPW_3ADDR_LEN + 8,
7669 skb->len - LIBIPW_3ADDR_LEN - 8);
7670 skb_trim(skb, skb->len - 16); /* CCMP_HDR_LEN + CCMP_MIC_LEN */
7671 break;
7672 case SEC_LEVEL_2:
7673 break;
7674 case SEC_LEVEL_1:
7675 /* Remove IV */
7676 memmove(skb->data + LIBIPW_3ADDR_LEN,
7677 skb->data + LIBIPW_3ADDR_LEN + 4,
7678 skb->len - LIBIPW_3ADDR_LEN - 4);
7679 skb_trim(skb, skb->len - 8); /* IV + ICV */
7680 break;
7681 case SEC_LEVEL_0:
7682 break;
7683 default:
7684 printk(KERN_ERR "Unknown security level %d\n",
7685 priv->ieee->sec.level);
7686 break;
7687 }
7688 }
7689
7690 static void ipw_handle_data_packet(struct ipw_priv *priv,
7691 struct ipw_rx_mem_buffer *rxb,
7692 struct libipw_rx_stats *stats)
7693 {
7694 struct net_device *dev = priv->net_dev;
7695 struct libipw_hdr_4addr *hdr;
7696 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7697
7698 /* We received data from the HW, so stop the watchdog */
7699 netif_trans_update(dev);
7700
7701 /* We only process data packets if the
7702 * interface is open */
7703 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7704 skb_tailroom(rxb->skb))) {
7705 dev->stats.rx_errors++;
7706 priv->wstats.discard.misc++;
7707 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7708 return;
7709 } else if (unlikely(!netif_running(priv->net_dev))) {
7710 dev->stats.rx_dropped++;
7711 priv->wstats.discard.misc++;
7712 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7713 return;
7714 }
7715
7716 /* Advance skb->data to the start of the actual payload */
7717 skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data));
7718
7719 /* Set the size of the skb to the size of the frame */
7720 skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length));
7721
7722 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7723
7724 /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */
7725 hdr = (struct libipw_hdr_4addr *)rxb->skb->data;
7726 if (priv->ieee->iw_mode != IW_MODE_MONITOR &&
7727 (is_multicast_ether_addr(hdr->addr1) ?
7728 !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt))
7729 ipw_rebuild_decrypted_skb(priv, rxb->skb);
7730
7731 if (!libipw_rx(priv->ieee, rxb->skb, stats))
7732 dev->stats.rx_errors++;
7733 else { /* libipw_rx succeeded, so it now owns the SKB */
7734 rxb->skb = NULL;
7735 __ipw_led_activity_on(priv);
7736 }
7737 }
7738
7739 #ifdef CONFIG_IPW2200_RADIOTAP
7740 static void ipw_handle_data_packet_monitor(struct ipw_priv *priv,
7741 struct ipw_rx_mem_buffer *rxb,
7742 struct libipw_rx_stats *stats)
7743 {
7744 struct net_device *dev = priv->net_dev;
7745 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7746 struct ipw_rx_frame *frame = &pkt->u.frame;
7747
7748 /* initial pull of some data */
7749 u16 received_channel = frame->received_channel;
7750 u8 antennaAndPhy = frame->antennaAndPhy;
7751 s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM; /* call it signed anyhow */
7752 u16 pktrate = frame->rate;
7753
7754 /* Magic struct that slots into the radiotap header -- no reason
7755 * to build this manually element by element, we can write it much
7756 * more efficiently than we can parse it. ORDER MATTERS HERE */
7757 struct ipw_rt_hdr *ipw_rt;
7758
7759 unsigned short len = le16_to_cpu(pkt->u.frame.length);
7760
7761 /* We received data from the HW, so stop the watchdog */
7762 netif_trans_update(dev);
7763
7764 /* We only process data packets if the
7765 * interface is open */
7766 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7767 skb_tailroom(rxb->skb))) {
7768 dev->stats.rx_errors++;
7769 priv->wstats.discard.misc++;
7770 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7771 return;
7772 } else if (unlikely(!netif_running(priv->net_dev))) {
7773 dev->stats.rx_dropped++;
7774 priv->wstats.discard.misc++;
7775 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7776 return;
7777 }
7778
7779 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7780 * that now */
7781 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7782 /* FIXME: Should alloc bigger skb instead */
7783 dev->stats.rx_dropped++;
7784 priv->wstats.discard.misc++;
7785 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7786 return;
7787 }
7788
7789 /* copy the frame itself */
7790 memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr),
7791 rxb->skb->data + IPW_RX_FRAME_SIZE, len);
7792
7793 ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data;
7794
7795 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7796 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
7797 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total header+data */
7798
7799 /* Big bitfield of all the fields we provide in radiotap */
7800 ipw_rt->rt_hdr.it_present = cpu_to_le32(
7801 (1 << IEEE80211_RADIOTAP_TSFT) |
7802 (1 << IEEE80211_RADIOTAP_FLAGS) |
7803 (1 << IEEE80211_RADIOTAP_RATE) |
7804 (1 << IEEE80211_RADIOTAP_CHANNEL) |
7805 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7806 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
7807 (1 << IEEE80211_RADIOTAP_ANTENNA));
7808
7809 /* Zero the flags, we'll add to them as we go */
7810 ipw_rt->rt_flags = 0;
7811 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 |
7812 frame->parent_tsf[2] << 16 |
7813 frame->parent_tsf[1] << 8 |
7814 frame->parent_tsf[0]);
7815
7816 /* Convert signal to DBM */
7817 ipw_rt->rt_dbmsignal = antsignal;
7818 ipw_rt->rt_dbmnoise = (s8) le16_to_cpu(frame->noise);
7819
7820 /* Convert the channel data and set the flags */
7821 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel));
7822 if (received_channel > 14) { /* 802.11a */
7823 ipw_rt->rt_chbitmask =
7824 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7825 } else if (antennaAndPhy & 32) { /* 802.11b */
7826 ipw_rt->rt_chbitmask =
7827 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7828 } else { /* 802.11g */
7829 ipw_rt->rt_chbitmask =
7830 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7831 }
7832
7833 /* set the rate in multiples of 500k/s */
7834 switch (pktrate) {
7835 case IPW_TX_RATE_1MB:
7836 ipw_rt->rt_rate = 2;
7837 break;
7838 case IPW_TX_RATE_2MB:
7839 ipw_rt->rt_rate = 4;
7840 break;
7841 case IPW_TX_RATE_5MB:
7842 ipw_rt->rt_rate = 10;
7843 break;
7844 case IPW_TX_RATE_6MB:
7845 ipw_rt->rt_rate = 12;
7846 break;
7847 case IPW_TX_RATE_9MB:
7848 ipw_rt->rt_rate = 18;
7849 break;
7850 case IPW_TX_RATE_11MB:
7851 ipw_rt->rt_rate = 22;
7852 break;
7853 case IPW_TX_RATE_12MB:
7854 ipw_rt->rt_rate = 24;
7855 break;
7856 case IPW_TX_RATE_18MB:
7857 ipw_rt->rt_rate = 36;
7858 break;
7859 case IPW_TX_RATE_24MB:
7860 ipw_rt->rt_rate = 48;
7861 break;
7862 case IPW_TX_RATE_36MB:
7863 ipw_rt->rt_rate = 72;
7864 break;
7865 case IPW_TX_RATE_48MB:
7866 ipw_rt->rt_rate = 96;
7867 break;
7868 case IPW_TX_RATE_54MB:
7869 ipw_rt->rt_rate = 108;
7870 break;
7871 default:
7872 ipw_rt->rt_rate = 0;
7873 break;
7874 }
7875
7876 /* antenna number */
7877 ipw_rt->rt_antenna = (antennaAndPhy & 3); /* Is this right? */
7878
7879 /* set the preamble flag if we have it */
7880 if ((antennaAndPhy & 64))
7881 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7882
7883 /* Set the size of the skb to the size of the frame */
7884 skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr));
7885
7886 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7887
7888 if (!libipw_rx(priv->ieee, rxb->skb, stats))
7889 dev->stats.rx_errors++;
7890 else { /* libipw_rx succeeded, so it now owns the SKB */
7891 rxb->skb = NULL;
7892 /* no LED during capture */
7893 }
7894 }
7895 #endif
7896
7897 #ifdef CONFIG_IPW2200_PROMISCUOUS
7898 #define libipw_is_probe_response(fc) \
7899 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \
7900 (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP )
7901
7902 #define libipw_is_management(fc) \
7903 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
7904
7905 #define libipw_is_control(fc) \
7906 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
7907
7908 #define libipw_is_data(fc) \
7909 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
7910
7911 #define libipw_is_assoc_request(fc) \
7912 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ)
7913
7914 #define libipw_is_reassoc_request(fc) \
7915 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
7916
7917 static void ipw_handle_promiscuous_rx(struct ipw_priv *priv,
7918 struct ipw_rx_mem_buffer *rxb,
7919 struct libipw_rx_stats *stats)
7920 {
7921 struct net_device *dev = priv->prom_net_dev;
7922 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7923 struct ipw_rx_frame *frame = &pkt->u.frame;
7924 struct ipw_rt_hdr *ipw_rt;
7925
7926 /* First cache any information we need before we overwrite
7927 * the information provided in the skb from the hardware */
7928 struct ieee80211_hdr *hdr;
7929 u16 channel = frame->received_channel;
7930 u8 phy_flags = frame->antennaAndPhy;
7931 s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM;
7932 s8 noise = (s8) le16_to_cpu(frame->noise);
7933 u8 rate = frame->rate;
7934 unsigned short len = le16_to_cpu(pkt->u.frame.length);
7935 struct sk_buff *skb;
7936 int hdr_only = 0;
7937 u16 filter = priv->prom_priv->filter;
7938
7939 /* If the filter is set to not include Rx frames then return */
7940 if (filter & IPW_PROM_NO_RX)
7941 return;
7942
7943 /* We received data from the HW, so stop the watchdog */
7944 netif_trans_update(dev);
7945
7946 if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) {
7947 dev->stats.rx_errors++;
7948 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7949 return;
7950 }
7951
7952 /* We only process data packets if the interface is open */
7953 if (unlikely(!netif_running(dev))) {
7954 dev->stats.rx_dropped++;
7955 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7956 return;
7957 }
7958
7959 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7960 * that now */
7961 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7962 /* FIXME: Should alloc bigger skb instead */
7963 dev->stats.rx_dropped++;
7964 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7965 return;
7966 }
7967
7968 hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE;
7969 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) {
7970 if (filter & IPW_PROM_NO_MGMT)
7971 return;
7972 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
7973 hdr_only = 1;
7974 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) {
7975 if (filter & IPW_PROM_NO_CTL)
7976 return;
7977 if (filter & IPW_PROM_CTL_HEADER_ONLY)
7978 hdr_only = 1;
7979 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) {
7980 if (filter & IPW_PROM_NO_DATA)
7981 return;
7982 if (filter & IPW_PROM_DATA_HEADER_ONLY)
7983 hdr_only = 1;
7984 }
7985
7986 /* Copy the SKB since this is for the promiscuous side */
7987 skb = skb_copy(rxb->skb, GFP_ATOMIC);
7988 if (skb == NULL) {
7989 IPW_ERROR("skb_clone failed for promiscuous copy.\n");
7990 return;
7991 }
7992
7993 /* copy the frame data to write after where the radiotap header goes */
7994 ipw_rt = (void *)skb->data;
7995
7996 if (hdr_only)
7997 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control));
7998
7999 memcpy(ipw_rt->payload, hdr, len);
8000
8001 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
8002 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
8003 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*ipw_rt)); /* total header+data */
8004
8005 /* Set the size of the skb to the size of the frame */
8006 skb_put(skb, sizeof(*ipw_rt) + len);
8007
8008 /* Big bitfield of all the fields we provide in radiotap */
8009 ipw_rt->rt_hdr.it_present = cpu_to_le32(
8010 (1 << IEEE80211_RADIOTAP_TSFT) |
8011 (1 << IEEE80211_RADIOTAP_FLAGS) |
8012 (1 << IEEE80211_RADIOTAP_RATE) |
8013 (1 << IEEE80211_RADIOTAP_CHANNEL) |
8014 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
8015 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
8016 (1 << IEEE80211_RADIOTAP_ANTENNA));
8017
8018 /* Zero the flags, we'll add to them as we go */
8019 ipw_rt->rt_flags = 0;
8020 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 |
8021 frame->parent_tsf[2] << 16 |
8022 frame->parent_tsf[1] << 8 |
8023 frame->parent_tsf[0]);
8024
8025 /* Convert to DBM */
8026 ipw_rt->rt_dbmsignal = signal;
8027 ipw_rt->rt_dbmnoise = noise;
8028
8029 /* Convert the channel data and set the flags */
8030 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel));
8031 if (channel > 14) { /* 802.11a */
8032 ipw_rt->rt_chbitmask =
8033 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
8034 } else if (phy_flags & (1 << 5)) { /* 802.11b */
8035 ipw_rt->rt_chbitmask =
8036 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
8037 } else { /* 802.11g */
8038 ipw_rt->rt_chbitmask =
8039 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
8040 }
8041
8042 /* set the rate in multiples of 500k/s */
8043 switch (rate) {
8044 case IPW_TX_RATE_1MB:
8045 ipw_rt->rt_rate = 2;
8046 break;
8047 case IPW_TX_RATE_2MB:
8048 ipw_rt->rt_rate = 4;
8049 break;
8050 case IPW_TX_RATE_5MB:
8051 ipw_rt->rt_rate = 10;
8052 break;
8053 case IPW_TX_RATE_6MB:
8054 ipw_rt->rt_rate = 12;
8055 break;
8056 case IPW_TX_RATE_9MB:
8057 ipw_rt->rt_rate = 18;
8058 break;
8059 case IPW_TX_RATE_11MB:
8060 ipw_rt->rt_rate = 22;
8061 break;
8062 case IPW_TX_RATE_12MB:
8063 ipw_rt->rt_rate = 24;
8064 break;
8065 case IPW_TX_RATE_18MB:
8066 ipw_rt->rt_rate = 36;
8067 break;
8068 case IPW_TX_RATE_24MB:
8069 ipw_rt->rt_rate = 48;
8070 break;
8071 case IPW_TX_RATE_36MB:
8072 ipw_rt->rt_rate = 72;
8073 break;
8074 case IPW_TX_RATE_48MB:
8075 ipw_rt->rt_rate = 96;
8076 break;
8077 case IPW_TX_RATE_54MB:
8078 ipw_rt->rt_rate = 108;
8079 break;
8080 default:
8081 ipw_rt->rt_rate = 0;
8082 break;
8083 }
8084
8085 /* antenna number */
8086 ipw_rt->rt_antenna = (phy_flags & 3);
8087
8088 /* set the preamble flag if we have it */
8089 if (phy_flags & (1 << 6))
8090 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
8091
8092 IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len);
8093
8094 if (!libipw_rx(priv->prom_priv->ieee, skb, stats)) {
8095 dev->stats.rx_errors++;
8096 dev_kfree_skb_any(skb);
8097 }
8098 }
8099 #endif
8100
8101 static int is_network_packet(struct ipw_priv *priv,
8102 struct libipw_hdr_4addr *header)
8103 {
8104 /* Filter incoming packets to determine if they are targeted toward
8105 * this network, discarding packets coming from ourselves */
8106 switch (priv->ieee->iw_mode) {
8107 case IW_MODE_ADHOC: /* Header: Dest. | Source | BSSID */
8108 /* packets from our adapter are dropped (echo) */
8109 if (ether_addr_equal(header->addr2, priv->net_dev->dev_addr))
8110 return 0;
8111
8112 /* {broad,multi}cast packets to our BSSID go through */
8113 if (is_multicast_ether_addr(header->addr1))
8114 return ether_addr_equal(header->addr3, priv->bssid);
8115
8116 /* packets to our adapter go through */
8117 return ether_addr_equal(header->addr1,
8118 priv->net_dev->dev_addr);
8119
8120 case IW_MODE_INFRA: /* Header: Dest. | BSSID | Source */
8121 /* packets from our adapter are dropped (echo) */
8122 if (ether_addr_equal(header->addr3, priv->net_dev->dev_addr))
8123 return 0;
8124
8125 /* {broad,multi}cast packets to our BSS go through */
8126 if (is_multicast_ether_addr(header->addr1))
8127 return ether_addr_equal(header->addr2, priv->bssid);
8128
8129 /* packets to our adapter go through */
8130 return ether_addr_equal(header->addr1,
8131 priv->net_dev->dev_addr);
8132 }
8133
8134 return 1;
8135 }
8136
8137 #define IPW_PACKET_RETRY_TIME HZ
8138
8139 static int is_duplicate_packet(struct ipw_priv *priv,
8140 struct libipw_hdr_4addr *header)
8141 {
8142 u16 sc = le16_to_cpu(header->seq_ctl);
8143 u16 seq = WLAN_GET_SEQ_SEQ(sc);
8144 u16 frag = WLAN_GET_SEQ_FRAG(sc);
8145 u16 *last_seq, *last_frag;
8146 unsigned long *last_time;
8147
8148 switch (priv->ieee->iw_mode) {
8149 case IW_MODE_ADHOC:
8150 {
8151 struct list_head *p;
8152 struct ipw_ibss_seq *entry = NULL;
8153 u8 *mac = header->addr2;
8154 int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE;
8155
8156 list_for_each(p, &priv->ibss_mac_hash[index]) {
8157 entry =
8158 list_entry(p, struct ipw_ibss_seq, list);
8159 if (ether_addr_equal(entry->mac, mac))
8160 break;
8161 }
8162 if (p == &priv->ibss_mac_hash[index]) {
8163 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
8164 if (!entry) {
8165 IPW_ERROR
8166 ("Cannot malloc new mac entry\n");
8167 return 0;
8168 }
8169 memcpy(entry->mac, mac, ETH_ALEN);
8170 entry->seq_num = seq;
8171 entry->frag_num = frag;
8172 entry->packet_time = jiffies;
8173 list_add(&entry->list,
8174 &priv->ibss_mac_hash[index]);
8175 return 0;
8176 }
8177 last_seq = &entry->seq_num;
8178 last_frag = &entry->frag_num;
8179 last_time = &entry->packet_time;
8180 break;
8181 }
8182 case IW_MODE_INFRA:
8183 last_seq = &priv->last_seq_num;
8184 last_frag = &priv->last_frag_num;
8185 last_time = &priv->last_packet_time;
8186 break;
8187 default:
8188 return 0;
8189 }
8190 if ((*last_seq == seq) &&
8191 time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) {
8192 if (*last_frag == frag)
8193 goto drop;
8194 if (*last_frag + 1 != frag)
8195 /* out-of-order fragment */
8196 goto drop;
8197 } else
8198 *last_seq = seq;
8199
8200 *last_frag = frag;
8201 *last_time = jiffies;
8202 return 0;
8203
8204 drop:
8205 /* Comment this line now since we observed the card receives
8206 * duplicate packets but the FCTL_RETRY bit is not set in the
8207 * IBSS mode with fragmentation enabled.
8208 BUG_ON(!(le16_to_cpu(header->frame_control) & IEEE80211_FCTL_RETRY)); */
8209 return 1;
8210 }
8211
8212 static void ipw_handle_mgmt_packet(struct ipw_priv *priv,
8213 struct ipw_rx_mem_buffer *rxb,
8214 struct libipw_rx_stats *stats)
8215 {
8216 struct sk_buff *skb = rxb->skb;
8217 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data;
8218 struct libipw_hdr_4addr *header = (struct libipw_hdr_4addr *)
8219 (skb->data + IPW_RX_FRAME_SIZE);
8220
8221 libipw_rx_mgt(priv->ieee, header, stats);
8222
8223 if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
8224 ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8225 IEEE80211_STYPE_PROBE_RESP) ||
8226 (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8227 IEEE80211_STYPE_BEACON))) {
8228 if (ether_addr_equal(header->addr3, priv->bssid))
8229 ipw_add_station(priv, header->addr2);
8230 }
8231
8232 if (priv->config & CFG_NET_STATS) {
8233 IPW_DEBUG_HC("sending stat packet\n");
8234
8235 /* Set the size of the skb to the size of the full
8236 * ipw header and 802.11 frame */
8237 skb_put(skb, le16_to_cpu(pkt->u.frame.length) +
8238 IPW_RX_FRAME_SIZE);
8239
8240 /* Advance past the ipw packet header to the 802.11 frame */
8241 skb_pull(skb, IPW_RX_FRAME_SIZE);
8242
8243 /* Push the libipw_rx_stats before the 802.11 frame */
8244 memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats));
8245
8246 skb->dev = priv->ieee->dev;
8247
8248 /* Point raw at the libipw_stats */
8249 skb_reset_mac_header(skb);
8250
8251 skb->pkt_type = PACKET_OTHERHOST;
8252 skb->protocol = cpu_to_be16(ETH_P_80211_STATS);
8253 memset(skb->cb, 0, sizeof(rxb->skb->cb));
8254 netif_rx(skb);
8255 rxb->skb = NULL;
8256 }
8257 }
8258
8259 /*
8260 * Main entry function for receiving a packet with 80211 headers. This
8261 * should be called when ever the FW has notified us that there is a new
8262 * skb in the receive queue.
8263 */
8264 static void ipw_rx(struct ipw_priv *priv)
8265 {
8266 struct ipw_rx_mem_buffer *rxb;
8267 struct ipw_rx_packet *pkt;
8268 struct libipw_hdr_4addr *header;
8269 u32 r, w, i;
8270 u8 network_packet;
8271 u8 fill_rx = 0;
8272
8273 r = ipw_read32(priv, IPW_RX_READ_INDEX);
8274 w = ipw_read32(priv, IPW_RX_WRITE_INDEX);
8275 i = priv->rxq->read;
8276
8277 if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2))
8278 fill_rx = 1;
8279
8280 while (i != r) {
8281 rxb = priv->rxq->queue[i];
8282 if (unlikely(rxb == NULL)) {
8283 printk(KERN_CRIT "Queue not allocated!\n");
8284 break;
8285 }
8286 priv->rxq->queue[i] = NULL;
8287
8288 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
8289 IPW_RX_BUF_SIZE,
8290 PCI_DMA_FROMDEVICE);
8291
8292 pkt = (struct ipw_rx_packet *)rxb->skb->data;
8293 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
8294 pkt->header.message_type,
8295 pkt->header.rx_seq_num, pkt->header.control_bits);
8296
8297 switch (pkt->header.message_type) {
8298 case RX_FRAME_TYPE: /* 802.11 frame */ {
8299 struct libipw_rx_stats stats = {
8300 .rssi = pkt->u.frame.rssi_dbm -
8301 IPW_RSSI_TO_DBM,
8302 .signal =
8303 pkt->u.frame.rssi_dbm -
8304 IPW_RSSI_TO_DBM + 0x100,
8305 .noise =
8306 le16_to_cpu(pkt->u.frame.noise),
8307 .rate = pkt->u.frame.rate,
8308 .mac_time = jiffies,
8309 .received_channel =
8310 pkt->u.frame.received_channel,
8311 .freq =
8312 (pkt->u.frame.
8313 control & (1 << 0)) ?
8314 LIBIPW_24GHZ_BAND :
8315 LIBIPW_52GHZ_BAND,
8316 .len = le16_to_cpu(pkt->u.frame.length),
8317 };
8318
8319 if (stats.rssi != 0)
8320 stats.mask |= LIBIPW_STATMASK_RSSI;
8321 if (stats.signal != 0)
8322 stats.mask |= LIBIPW_STATMASK_SIGNAL;
8323 if (stats.noise != 0)
8324 stats.mask |= LIBIPW_STATMASK_NOISE;
8325 if (stats.rate != 0)
8326 stats.mask |= LIBIPW_STATMASK_RATE;
8327
8328 priv->rx_packets++;
8329
8330 #ifdef CONFIG_IPW2200_PROMISCUOUS
8331 if (priv->prom_net_dev && netif_running(priv->prom_net_dev))
8332 ipw_handle_promiscuous_rx(priv, rxb, &stats);
8333 #endif
8334
8335 #ifdef CONFIG_IPW2200_MONITOR
8336 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8337 #ifdef CONFIG_IPW2200_RADIOTAP
8338
8339 ipw_handle_data_packet_monitor(priv,
8340 rxb,
8341 &stats);
8342 #else
8343 ipw_handle_data_packet(priv, rxb,
8344 &stats);
8345 #endif
8346 break;
8347 }
8348 #endif
8349
8350 header =
8351 (struct libipw_hdr_4addr *)(rxb->skb->
8352 data +
8353 IPW_RX_FRAME_SIZE);
8354 /* TODO: Check Ad-Hoc dest/source and make sure
8355 * that we are actually parsing these packets
8356 * correctly -- we should probably use the
8357 * frame control of the packet and disregard
8358 * the current iw_mode */
8359
8360 network_packet =
8361 is_network_packet(priv, header);
8362 if (network_packet && priv->assoc_network) {
8363 priv->assoc_network->stats.rssi =
8364 stats.rssi;
8365 priv->exp_avg_rssi =
8366 exponential_average(priv->exp_avg_rssi,
8367 stats.rssi, DEPTH_RSSI);
8368 }
8369
8370 IPW_DEBUG_RX("Frame: len=%u\n",
8371 le16_to_cpu(pkt->u.frame.length));
8372
8373 if (le16_to_cpu(pkt->u.frame.length) <
8374 libipw_get_hdrlen(le16_to_cpu(
8375 header->frame_ctl))) {
8376 IPW_DEBUG_DROP
8377 ("Received packet is too small. "
8378 "Dropping.\n");
8379 priv->net_dev->stats.rx_errors++;
8380 priv->wstats.discard.misc++;
8381 break;
8382 }
8383
8384 switch (WLAN_FC_GET_TYPE
8385 (le16_to_cpu(header->frame_ctl))) {
8386
8387 case IEEE80211_FTYPE_MGMT:
8388 ipw_handle_mgmt_packet(priv, rxb,
8389 &stats);
8390 break;
8391
8392 case IEEE80211_FTYPE_CTL:
8393 break;
8394
8395 case IEEE80211_FTYPE_DATA:
8396 if (unlikely(!network_packet ||
8397 is_duplicate_packet(priv,
8398 header)))
8399 {
8400 IPW_DEBUG_DROP("Dropping: "
8401 "%pM, "
8402 "%pM, "
8403 "%pM\n",
8404 header->addr1,
8405 header->addr2,
8406 header->addr3);
8407 break;
8408 }
8409
8410 ipw_handle_data_packet(priv, rxb,
8411 &stats);
8412
8413 break;
8414 }
8415 break;
8416 }
8417
8418 case RX_HOST_NOTIFICATION_TYPE:{
8419 IPW_DEBUG_RX
8420 ("Notification: subtype=%02X flags=%02X size=%d\n",
8421 pkt->u.notification.subtype,
8422 pkt->u.notification.flags,
8423 le16_to_cpu(pkt->u.notification.size));
8424 ipw_rx_notification(priv, &pkt->u.notification);
8425 break;
8426 }
8427
8428 default:
8429 IPW_DEBUG_RX("Bad Rx packet of type %d\n",
8430 pkt->header.message_type);
8431 break;
8432 }
8433
8434 /* For now we just don't re-use anything. We can tweak this
8435 * later to try and re-use notification packets and SKBs that
8436 * fail to Rx correctly */
8437 if (rxb->skb != NULL) {
8438 dev_kfree_skb_any(rxb->skb);
8439 rxb->skb = NULL;
8440 }
8441
8442 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
8443 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
8444 list_add_tail(&rxb->list, &priv->rxq->rx_used);
8445
8446 i = (i + 1) % RX_QUEUE_SIZE;
8447
8448 /* If there are a lot of unsued frames, restock the Rx queue
8449 * so the ucode won't assert */
8450 if (fill_rx) {
8451 priv->rxq->read = i;
8452 ipw_rx_queue_replenish(priv);
8453 }
8454 }
8455
8456 /* Backtrack one entry */
8457 priv->rxq->read = i;
8458 ipw_rx_queue_restock(priv);
8459 }
8460
8461 #define DEFAULT_RTS_THRESHOLD 2304U
8462 #define MIN_RTS_THRESHOLD 1U
8463 #define MAX_RTS_THRESHOLD 2304U
8464 #define DEFAULT_BEACON_INTERVAL 100U
8465 #define DEFAULT_SHORT_RETRY_LIMIT 7U
8466 #define DEFAULT_LONG_RETRY_LIMIT 4U
8467
8468 /**
8469 * ipw_sw_reset
8470 * @option: options to control different reset behaviour
8471 * 0 = reset everything except the 'disable' module_param
8472 * 1 = reset everything and print out driver info (for probe only)
8473 * 2 = reset everything
8474 */
8475 static int ipw_sw_reset(struct ipw_priv *priv, int option)
8476 {
8477 int band, modulation;
8478 int old_mode = priv->ieee->iw_mode;
8479
8480 /* Initialize module parameter values here */
8481 priv->config = 0;
8482
8483 /* We default to disabling the LED code as right now it causes
8484 * too many systems to lock up... */
8485 if (!led_support)
8486 priv->config |= CFG_NO_LED;
8487
8488 if (associate)
8489 priv->config |= CFG_ASSOCIATE;
8490 else
8491 IPW_DEBUG_INFO("Auto associate disabled.\n");
8492
8493 if (auto_create)
8494 priv->config |= CFG_ADHOC_CREATE;
8495 else
8496 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
8497
8498 priv->config &= ~CFG_STATIC_ESSID;
8499 priv->essid_len = 0;
8500 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
8501
8502 if (disable && option) {
8503 priv->status |= STATUS_RF_KILL_SW;
8504 IPW_DEBUG_INFO("Radio disabled.\n");
8505 }
8506
8507 if (default_channel != 0) {
8508 priv->config |= CFG_STATIC_CHANNEL;
8509 priv->channel = default_channel;
8510 IPW_DEBUG_INFO("Bind to static channel %d\n", default_channel);
8511 /* TODO: Validate that provided channel is in range */
8512 }
8513 #ifdef CONFIG_IPW2200_QOS
8514 ipw_qos_init(priv, qos_enable, qos_burst_enable,
8515 burst_duration_CCK, burst_duration_OFDM);
8516 #endif /* CONFIG_IPW2200_QOS */
8517
8518 switch (network_mode) {
8519 case 1:
8520 priv->ieee->iw_mode = IW_MODE_ADHOC;
8521 priv->net_dev->type = ARPHRD_ETHER;
8522
8523 break;
8524 #ifdef CONFIG_IPW2200_MONITOR
8525 case 2:
8526 priv->ieee->iw_mode = IW_MODE_MONITOR;
8527 #ifdef CONFIG_IPW2200_RADIOTAP
8528 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8529 #else
8530 priv->net_dev->type = ARPHRD_IEEE80211;
8531 #endif
8532 break;
8533 #endif
8534 default:
8535 case 0:
8536 priv->net_dev->type = ARPHRD_ETHER;
8537 priv->ieee->iw_mode = IW_MODE_INFRA;
8538 break;
8539 }
8540
8541 if (hwcrypto) {
8542 priv->ieee->host_encrypt = 0;
8543 priv->ieee->host_encrypt_msdu = 0;
8544 priv->ieee->host_decrypt = 0;
8545 priv->ieee->host_mc_decrypt = 0;
8546 }
8547 IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off");
8548
8549 /* IPW2200/2915 is abled to do hardware fragmentation. */
8550 priv->ieee->host_open_frag = 0;
8551
8552 if ((priv->pci_dev->device == 0x4223) ||
8553 (priv->pci_dev->device == 0x4224)) {
8554 if (option == 1)
8555 printk(KERN_INFO DRV_NAME
8556 ": Detected Intel PRO/Wireless 2915ABG Network "
8557 "Connection\n");
8558 priv->ieee->abg_true = 1;
8559 band = LIBIPW_52GHZ_BAND | LIBIPW_24GHZ_BAND;
8560 modulation = LIBIPW_OFDM_MODULATION |
8561 LIBIPW_CCK_MODULATION;
8562 priv->adapter = IPW_2915ABG;
8563 priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B;
8564 } else {
8565 if (option == 1)
8566 printk(KERN_INFO DRV_NAME
8567 ": Detected Intel PRO/Wireless 2200BG Network "
8568 "Connection\n");
8569
8570 priv->ieee->abg_true = 0;
8571 band = LIBIPW_24GHZ_BAND;
8572 modulation = LIBIPW_OFDM_MODULATION |
8573 LIBIPW_CCK_MODULATION;
8574 priv->adapter = IPW_2200BG;
8575 priv->ieee->mode = IEEE_G | IEEE_B;
8576 }
8577
8578 priv->ieee->freq_band = band;
8579 priv->ieee->modulation = modulation;
8580
8581 priv->rates_mask = LIBIPW_DEFAULT_RATES_MASK;
8582
8583 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8584 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8585
8586 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
8587 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
8588 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
8589
8590 /* If power management is turned on, default to AC mode */
8591 priv->power_mode = IPW_POWER_AC;
8592 priv->tx_power = IPW_TX_POWER_DEFAULT;
8593
8594 return old_mode == priv->ieee->iw_mode;
8595 }
8596
8597 /*
8598 * This file defines the Wireless Extension handlers. It does not
8599 * define any methods of hardware manipulation and relies on the
8600 * functions defined in ipw_main to provide the HW interaction.
8601 *
8602 * The exception to this is the use of the ipw_get_ordinal()
8603 * function used to poll the hardware vs. making unnecessary calls.
8604 *
8605 */
8606
8607 static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
8608 {
8609 if (channel == 0) {
8610 IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
8611 priv->config &= ~CFG_STATIC_CHANNEL;
8612 IPW_DEBUG_ASSOC("Attempting to associate with new "
8613 "parameters.\n");
8614 ipw_associate(priv);
8615 return 0;
8616 }
8617
8618 priv->config |= CFG_STATIC_CHANNEL;
8619
8620 if (priv->channel == channel) {
8621 IPW_DEBUG_INFO("Request to set channel to current value (%d)\n",
8622 channel);
8623 return 0;
8624 }
8625
8626 IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
8627 priv->channel = channel;
8628
8629 #ifdef CONFIG_IPW2200_MONITOR
8630 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8631 int i;
8632 if (priv->status & STATUS_SCANNING) {
8633 IPW_DEBUG_SCAN("Scan abort triggered due to "
8634 "channel change.\n");
8635 ipw_abort_scan(priv);
8636 }
8637
8638 for (i = 1000; i && (priv->status & STATUS_SCANNING); i--)
8639 udelay(10);
8640
8641 if (priv->status & STATUS_SCANNING)
8642 IPW_DEBUG_SCAN("Still scanning...\n");
8643 else
8644 IPW_DEBUG_SCAN("Took %dms to abort current scan\n",
8645 1000 - i);
8646
8647 return 0;
8648 }
8649 #endif /* CONFIG_IPW2200_MONITOR */
8650
8651 /* Network configuration changed -- force [re]association */
8652 IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n");
8653 if (!ipw_disassociate(priv))
8654 ipw_associate(priv);
8655
8656 return 0;
8657 }
8658
8659 static int ipw_wx_set_freq(struct net_device *dev,
8660 struct iw_request_info *info,
8661 union iwreq_data *wrqu, char *extra)
8662 {
8663 struct ipw_priv *priv = libipw_priv(dev);
8664 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
8665 struct iw_freq *fwrq = &wrqu->freq;
8666 int ret = 0, i;
8667 u8 channel, flags;
8668 int band;
8669
8670 if (fwrq->m == 0) {
8671 IPW_DEBUG_WX("SET Freq/Channel -> any\n");
8672 mutex_lock(&priv->mutex);
8673 ret = ipw_set_channel(priv, 0);
8674 mutex_unlock(&priv->mutex);
8675 return ret;
8676 }
8677 /* if setting by freq convert to channel */
8678 if (fwrq->e == 1) {
8679 channel = libipw_freq_to_channel(priv->ieee, fwrq->m);
8680 if (channel == 0)
8681 return -EINVAL;
8682 } else
8683 channel = fwrq->m;
8684
8685 if (!(band = libipw_is_valid_channel(priv->ieee, channel)))
8686 return -EINVAL;
8687
8688 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
8689 i = libipw_channel_to_index(priv->ieee, channel);
8690 if (i == -1)
8691 return -EINVAL;
8692
8693 flags = (band == LIBIPW_24GHZ_BAND) ?
8694 geo->bg[i].flags : geo->a[i].flags;
8695 if (flags & LIBIPW_CH_PASSIVE_ONLY) {
8696 IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n");
8697 return -EINVAL;
8698 }
8699 }
8700
8701 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m);
8702 mutex_lock(&priv->mutex);
8703 ret = ipw_set_channel(priv, channel);
8704 mutex_unlock(&priv->mutex);
8705 return ret;
8706 }
8707
8708 static int ipw_wx_get_freq(struct net_device *dev,
8709 struct iw_request_info *info,
8710 union iwreq_data *wrqu, char *extra)
8711 {
8712 struct ipw_priv *priv = libipw_priv(dev);
8713
8714 wrqu->freq.e = 0;
8715
8716 /* If we are associated, trying to associate, or have a statically
8717 * configured CHANNEL then return that; otherwise return ANY */
8718 mutex_lock(&priv->mutex);
8719 if (priv->config & CFG_STATIC_CHANNEL ||
8720 priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) {
8721 int i;
8722
8723 i = libipw_channel_to_index(priv->ieee, priv->channel);
8724 BUG_ON(i == -1);
8725 wrqu->freq.e = 1;
8726
8727 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
8728 case LIBIPW_52GHZ_BAND:
8729 wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000;
8730 break;
8731
8732 case LIBIPW_24GHZ_BAND:
8733 wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000;
8734 break;
8735
8736 default:
8737 BUG();
8738 }
8739 } else
8740 wrqu->freq.m = 0;
8741
8742 mutex_unlock(&priv->mutex);
8743 IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel);
8744 return 0;
8745 }
8746
8747 static int ipw_wx_set_mode(struct net_device *dev,
8748 struct iw_request_info *info,
8749 union iwreq_data *wrqu, char *extra)
8750 {
8751 struct ipw_priv *priv = libipw_priv(dev);
8752 int err = 0;
8753
8754 IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
8755
8756 switch (wrqu->mode) {
8757 #ifdef CONFIG_IPW2200_MONITOR
8758 case IW_MODE_MONITOR:
8759 #endif
8760 case IW_MODE_ADHOC:
8761 case IW_MODE_INFRA:
8762 break;
8763 case IW_MODE_AUTO:
8764 wrqu->mode = IW_MODE_INFRA;
8765 break;
8766 default:
8767 return -EINVAL;
8768 }
8769 if (wrqu->mode == priv->ieee->iw_mode)
8770 return 0;
8771
8772 mutex_lock(&priv->mutex);
8773
8774 ipw_sw_reset(priv, 0);
8775
8776 #ifdef CONFIG_IPW2200_MONITOR
8777 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8778 priv->net_dev->type = ARPHRD_ETHER;
8779
8780 if (wrqu->mode == IW_MODE_MONITOR)
8781 #ifdef CONFIG_IPW2200_RADIOTAP
8782 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8783 #else
8784 priv->net_dev->type = ARPHRD_IEEE80211;
8785 #endif
8786 #endif /* CONFIG_IPW2200_MONITOR */
8787
8788 /* Free the existing firmware and reset the fw_loaded
8789 * flag so ipw_load() will bring in the new firmware */
8790 free_firmware();
8791
8792 priv->ieee->iw_mode = wrqu->mode;
8793
8794 schedule_work(&priv->adapter_restart);
8795 mutex_unlock(&priv->mutex);
8796 return err;
8797 }
8798
8799 static int ipw_wx_get_mode(struct net_device *dev,
8800 struct iw_request_info *info,
8801 union iwreq_data *wrqu, char *extra)
8802 {
8803 struct ipw_priv *priv = libipw_priv(dev);
8804 mutex_lock(&priv->mutex);
8805 wrqu->mode = priv->ieee->iw_mode;
8806 IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
8807 mutex_unlock(&priv->mutex);
8808 return 0;
8809 }
8810
8811 /* Values are in microsecond */
8812 static const s32 timeout_duration[] = {
8813 350000,
8814 250000,
8815 75000,
8816 37000,
8817 25000,
8818 };
8819
8820 static const s32 period_duration[] = {
8821 400000,
8822 700000,
8823 1000000,
8824 1000000,
8825 1000000
8826 };
8827
8828 static int ipw_wx_get_range(struct net_device *dev,
8829 struct iw_request_info *info,
8830 union iwreq_data *wrqu, char *extra)
8831 {
8832 struct ipw_priv *priv = libipw_priv(dev);
8833 struct iw_range *range = (struct iw_range *)extra;
8834 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
8835 int i = 0, j;
8836
8837 wrqu->data.length = sizeof(*range);
8838 memset(range, 0, sizeof(*range));
8839
8840 /* 54Mbs == ~27 Mb/s real (802.11g) */
8841 range->throughput = 27 * 1000 * 1000;
8842
8843 range->max_qual.qual = 100;
8844 /* TODO: Find real max RSSI and stick here */
8845 range->max_qual.level = 0;
8846 range->max_qual.noise = 0;
8847 range->max_qual.updated = 7; /* Updated all three */
8848
8849 range->avg_qual.qual = 70;
8850 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
8851 range->avg_qual.level = 0; /* FIXME to real average level */
8852 range->avg_qual.noise = 0;
8853 range->avg_qual.updated = 7; /* Updated all three */
8854 mutex_lock(&priv->mutex);
8855 range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES);
8856
8857 for (i = 0; i < range->num_bitrates; i++)
8858 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
8859 500000;
8860
8861 range->max_rts = DEFAULT_RTS_THRESHOLD;
8862 range->min_frag = MIN_FRAG_THRESHOLD;
8863 range->max_frag = MAX_FRAG_THRESHOLD;
8864
8865 range->encoding_size[0] = 5;
8866 range->encoding_size[1] = 13;
8867 range->num_encoding_sizes = 2;
8868 range->max_encoding_tokens = WEP_KEYS;
8869
8870 /* Set the Wireless Extension versions */
8871 range->we_version_compiled = WIRELESS_EXT;
8872 range->we_version_source = 18;
8873
8874 i = 0;
8875 if (priv->ieee->mode & (IEEE_B | IEEE_G)) {
8876 for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) {
8877 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8878 (geo->bg[j].flags & LIBIPW_CH_PASSIVE_ONLY))
8879 continue;
8880
8881 range->freq[i].i = geo->bg[j].channel;
8882 range->freq[i].m = geo->bg[j].freq * 100000;
8883 range->freq[i].e = 1;
8884 i++;
8885 }
8886 }
8887
8888 if (priv->ieee->mode & IEEE_A) {
8889 for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) {
8890 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8891 (geo->a[j].flags & LIBIPW_CH_PASSIVE_ONLY))
8892 continue;
8893
8894 range->freq[i].i = geo->a[j].channel;
8895 range->freq[i].m = geo->a[j].freq * 100000;
8896 range->freq[i].e = 1;
8897 i++;
8898 }
8899 }
8900
8901 range->num_channels = i;
8902 range->num_frequency = i;
8903
8904 mutex_unlock(&priv->mutex);
8905
8906 /* Event capability (kernel + driver) */
8907 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
8908 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
8909 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
8910 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
8911 range->event_capa[1] = IW_EVENT_CAPA_K_1;
8912
8913 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
8914 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
8915
8916 range->scan_capa = IW_SCAN_CAPA_ESSID | IW_SCAN_CAPA_TYPE;
8917
8918 IPW_DEBUG_WX("GET Range\n");
8919 return 0;
8920 }
8921
8922 static int ipw_wx_set_wap(struct net_device *dev,
8923 struct iw_request_info *info,
8924 union iwreq_data *wrqu, char *extra)
8925 {
8926 struct ipw_priv *priv = libipw_priv(dev);
8927
8928 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
8929 return -EINVAL;
8930 mutex_lock(&priv->mutex);
8931 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
8932 is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
8933 /* we disable mandatory BSSID association */
8934 IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
8935 priv->config &= ~CFG_STATIC_BSSID;
8936 IPW_DEBUG_ASSOC("Attempting to associate with new "
8937 "parameters.\n");
8938 ipw_associate(priv);
8939 mutex_unlock(&priv->mutex);
8940 return 0;
8941 }
8942
8943 priv->config |= CFG_STATIC_BSSID;
8944 if (ether_addr_equal(priv->bssid, wrqu->ap_addr.sa_data)) {
8945 IPW_DEBUG_WX("BSSID set to current BSSID.\n");
8946 mutex_unlock(&priv->mutex);
8947 return 0;
8948 }
8949
8950 IPW_DEBUG_WX("Setting mandatory BSSID to %pM\n",
8951 wrqu->ap_addr.sa_data);
8952
8953 memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
8954
8955 /* Network configuration changed -- force [re]association */
8956 IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n");
8957 if (!ipw_disassociate(priv))
8958 ipw_associate(priv);
8959
8960 mutex_unlock(&priv->mutex);
8961 return 0;
8962 }
8963
8964 static int ipw_wx_get_wap(struct net_device *dev,
8965 struct iw_request_info *info,
8966 union iwreq_data *wrqu, char *extra)
8967 {
8968 struct ipw_priv *priv = libipw_priv(dev);
8969
8970 /* If we are associated, trying to associate, or have a statically
8971 * configured BSSID then return that; otherwise return ANY */
8972 mutex_lock(&priv->mutex);
8973 if (priv->config & CFG_STATIC_BSSID ||
8974 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8975 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
8976 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
8977 } else
8978 eth_zero_addr(wrqu->ap_addr.sa_data);
8979
8980 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n",
8981 wrqu->ap_addr.sa_data);
8982 mutex_unlock(&priv->mutex);
8983 return 0;
8984 }
8985
8986 static int ipw_wx_set_essid(struct net_device *dev,
8987 struct iw_request_info *info,
8988 union iwreq_data *wrqu, char *extra)
8989 {
8990 struct ipw_priv *priv = libipw_priv(dev);
8991 int length;
8992
8993 mutex_lock(&priv->mutex);
8994
8995 if (!wrqu->essid.flags)
8996 {
8997 IPW_DEBUG_WX("Setting ESSID to ANY\n");
8998 ipw_disassociate(priv);
8999 priv->config &= ~CFG_STATIC_ESSID;
9000 ipw_associate(priv);
9001 mutex_unlock(&priv->mutex);
9002 return 0;
9003 }
9004
9005 length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE);
9006
9007 priv->config |= CFG_STATIC_ESSID;
9008
9009 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)
9010 && (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) {
9011 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
9012 mutex_unlock(&priv->mutex);
9013 return 0;
9014 }
9015
9016 IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, extra, length);
9017
9018 priv->essid_len = length;
9019 memcpy(priv->essid, extra, priv->essid_len);
9020
9021 /* Network configuration changed -- force [re]association */
9022 IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n");
9023 if (!ipw_disassociate(priv))
9024 ipw_associate(priv);
9025
9026 mutex_unlock(&priv->mutex);
9027 return 0;
9028 }
9029
9030 static int ipw_wx_get_essid(struct net_device *dev,
9031 struct iw_request_info *info,
9032 union iwreq_data *wrqu, char *extra)
9033 {
9034 struct ipw_priv *priv = libipw_priv(dev);
9035
9036 /* If we are associated, trying to associate, or have a statically
9037 * configured ESSID then return that; otherwise return ANY */
9038 mutex_lock(&priv->mutex);
9039 if (priv->config & CFG_STATIC_ESSID ||
9040 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
9041 IPW_DEBUG_WX("Getting essid: '%*pE'\n",
9042 priv->essid_len, priv->essid);
9043 memcpy(extra, priv->essid, priv->essid_len);
9044 wrqu->essid.length = priv->essid_len;
9045 wrqu->essid.flags = 1; /* active */
9046 } else {
9047 IPW_DEBUG_WX("Getting essid: ANY\n");
9048 wrqu->essid.length = 0;
9049 wrqu->essid.flags = 0; /* active */
9050 }
9051 mutex_unlock(&priv->mutex);
9052 return 0;
9053 }
9054
9055 static int ipw_wx_set_nick(struct net_device *dev,
9056 struct iw_request_info *info,
9057 union iwreq_data *wrqu, char *extra)
9058 {
9059 struct ipw_priv *priv = libipw_priv(dev);
9060
9061 IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
9062 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
9063 return -E2BIG;
9064 mutex_lock(&priv->mutex);
9065 wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick));
9066 memset(priv->nick, 0, sizeof(priv->nick));
9067 memcpy(priv->nick, extra, wrqu->data.length);
9068 IPW_DEBUG_TRACE("<<\n");
9069 mutex_unlock(&priv->mutex);
9070 return 0;
9071
9072 }
9073
9074 static int ipw_wx_get_nick(struct net_device *dev,
9075 struct iw_request_info *info,
9076 union iwreq_data *wrqu, char *extra)
9077 {
9078 struct ipw_priv *priv = libipw_priv(dev);
9079 IPW_DEBUG_WX("Getting nick\n");
9080 mutex_lock(&priv->mutex);
9081 wrqu->data.length = strlen(priv->nick);
9082 memcpy(extra, priv->nick, wrqu->data.length);
9083 wrqu->data.flags = 1; /* active */
9084 mutex_unlock(&priv->mutex);
9085 return 0;
9086 }
9087
9088 static int ipw_wx_set_sens(struct net_device *dev,
9089 struct iw_request_info *info,
9090 union iwreq_data *wrqu, char *extra)
9091 {
9092 struct ipw_priv *priv = libipw_priv(dev);
9093 int err = 0;
9094
9095 IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value);
9096 IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value);
9097 mutex_lock(&priv->mutex);
9098
9099 if (wrqu->sens.fixed == 0)
9100 {
9101 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
9102 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
9103 goto out;
9104 }
9105 if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) ||
9106 (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) {
9107 err = -EINVAL;
9108 goto out;
9109 }
9110
9111 priv->roaming_threshold = wrqu->sens.value;
9112 priv->disassociate_threshold = 3*wrqu->sens.value;
9113 out:
9114 mutex_unlock(&priv->mutex);
9115 return err;
9116 }
9117
9118 static int ipw_wx_get_sens(struct net_device *dev,
9119 struct iw_request_info *info,
9120 union iwreq_data *wrqu, char *extra)
9121 {
9122 struct ipw_priv *priv = libipw_priv(dev);
9123 mutex_lock(&priv->mutex);
9124 wrqu->sens.fixed = 1;
9125 wrqu->sens.value = priv->roaming_threshold;
9126 mutex_unlock(&priv->mutex);
9127
9128 IPW_DEBUG_WX("GET roaming threshold -> %s %d\n",
9129 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9130
9131 return 0;
9132 }
9133
9134 static int ipw_wx_set_rate(struct net_device *dev,
9135 struct iw_request_info *info,
9136 union iwreq_data *wrqu, char *extra)
9137 {
9138 /* TODO: We should use semaphores or locks for access to priv */
9139 struct ipw_priv *priv = libipw_priv(dev);
9140 u32 target_rate = wrqu->bitrate.value;
9141 u32 fixed, mask;
9142
9143 /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */
9144 /* value = X, fixed = 1 means only rate X */
9145 /* value = X, fixed = 0 means all rates lower equal X */
9146
9147 if (target_rate == -1) {
9148 fixed = 0;
9149 mask = LIBIPW_DEFAULT_RATES_MASK;
9150 /* Now we should reassociate */
9151 goto apply;
9152 }
9153
9154 mask = 0;
9155 fixed = wrqu->bitrate.fixed;
9156
9157 if (target_rate == 1000000 || !fixed)
9158 mask |= LIBIPW_CCK_RATE_1MB_MASK;
9159 if (target_rate == 1000000)
9160 goto apply;
9161
9162 if (target_rate == 2000000 || !fixed)
9163 mask |= LIBIPW_CCK_RATE_2MB_MASK;
9164 if (target_rate == 2000000)
9165 goto apply;
9166
9167 if (target_rate == 5500000 || !fixed)
9168 mask |= LIBIPW_CCK_RATE_5MB_MASK;
9169 if (target_rate == 5500000)
9170 goto apply;
9171
9172 if (target_rate == 6000000 || !fixed)
9173 mask |= LIBIPW_OFDM_RATE_6MB_MASK;
9174 if (target_rate == 6000000)
9175 goto apply;
9176
9177 if (target_rate == 9000000 || !fixed)
9178 mask |= LIBIPW_OFDM_RATE_9MB_MASK;
9179 if (target_rate == 9000000)
9180 goto apply;
9181
9182 if (target_rate == 11000000 || !fixed)
9183 mask |= LIBIPW_CCK_RATE_11MB_MASK;
9184 if (target_rate == 11000000)
9185 goto apply;
9186
9187 if (target_rate == 12000000 || !fixed)
9188 mask |= LIBIPW_OFDM_RATE_12MB_MASK;
9189 if (target_rate == 12000000)
9190 goto apply;
9191
9192 if (target_rate == 18000000 || !fixed)
9193 mask |= LIBIPW_OFDM_RATE_18MB_MASK;
9194 if (target_rate == 18000000)
9195 goto apply;
9196
9197 if (target_rate == 24000000 || !fixed)
9198 mask |= LIBIPW_OFDM_RATE_24MB_MASK;
9199 if (target_rate == 24000000)
9200 goto apply;
9201
9202 if (target_rate == 36000000 || !fixed)
9203 mask |= LIBIPW_OFDM_RATE_36MB_MASK;
9204 if (target_rate == 36000000)
9205 goto apply;
9206
9207 if (target_rate == 48000000 || !fixed)
9208 mask |= LIBIPW_OFDM_RATE_48MB_MASK;
9209 if (target_rate == 48000000)
9210 goto apply;
9211
9212 if (target_rate == 54000000 || !fixed)
9213 mask |= LIBIPW_OFDM_RATE_54MB_MASK;
9214 if (target_rate == 54000000)
9215 goto apply;
9216
9217 IPW_DEBUG_WX("invalid rate specified, returning error\n");
9218 return -EINVAL;
9219
9220 apply:
9221 IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n",
9222 mask, fixed ? "fixed" : "sub-rates");
9223 mutex_lock(&priv->mutex);
9224 if (mask == LIBIPW_DEFAULT_RATES_MASK) {
9225 priv->config &= ~CFG_FIXED_RATE;
9226 ipw_set_fixed_rate(priv, priv->ieee->mode);
9227 } else
9228 priv->config |= CFG_FIXED_RATE;
9229
9230 if (priv->rates_mask == mask) {
9231 IPW_DEBUG_WX("Mask set to current mask.\n");
9232 mutex_unlock(&priv->mutex);
9233 return 0;
9234 }
9235
9236 priv->rates_mask = mask;
9237
9238 /* Network configuration changed -- force [re]association */
9239 IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n");
9240 if (!ipw_disassociate(priv))
9241 ipw_associate(priv);
9242
9243 mutex_unlock(&priv->mutex);
9244 return 0;
9245 }
9246
9247 static int ipw_wx_get_rate(struct net_device *dev,
9248 struct iw_request_info *info,
9249 union iwreq_data *wrqu, char *extra)
9250 {
9251 struct ipw_priv *priv = libipw_priv(dev);
9252 mutex_lock(&priv->mutex);
9253 wrqu->bitrate.value = priv->last_rate;
9254 wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0;
9255 mutex_unlock(&priv->mutex);
9256 IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value);
9257 return 0;
9258 }
9259
9260 static int ipw_wx_set_rts(struct net_device *dev,
9261 struct iw_request_info *info,
9262 union iwreq_data *wrqu, char *extra)
9263 {
9264 struct ipw_priv *priv = libipw_priv(dev);
9265 mutex_lock(&priv->mutex);
9266 if (wrqu->rts.disabled || !wrqu->rts.fixed)
9267 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
9268 else {
9269 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
9270 wrqu->rts.value > MAX_RTS_THRESHOLD) {
9271 mutex_unlock(&priv->mutex);
9272 return -EINVAL;
9273 }
9274 priv->rts_threshold = wrqu->rts.value;
9275 }
9276
9277 ipw_send_rts_threshold(priv, priv->rts_threshold);
9278 mutex_unlock(&priv->mutex);
9279 IPW_DEBUG_WX("SET RTS Threshold -> %d\n", priv->rts_threshold);
9280 return 0;
9281 }
9282
9283 static int ipw_wx_get_rts(struct net_device *dev,
9284 struct iw_request_info *info,
9285 union iwreq_data *wrqu, char *extra)
9286 {
9287 struct ipw_priv *priv = libipw_priv(dev);
9288 mutex_lock(&priv->mutex);
9289 wrqu->rts.value = priv->rts_threshold;
9290 wrqu->rts.fixed = 0; /* no auto select */
9291 wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
9292 mutex_unlock(&priv->mutex);
9293 IPW_DEBUG_WX("GET RTS Threshold -> %d\n", wrqu->rts.value);
9294 return 0;
9295 }
9296
9297 static int ipw_wx_set_txpow(struct net_device *dev,
9298 struct iw_request_info *info,
9299 union iwreq_data *wrqu, char *extra)
9300 {
9301 struct ipw_priv *priv = libipw_priv(dev);
9302 int err = 0;
9303
9304 mutex_lock(&priv->mutex);
9305 if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) {
9306 err = -EINPROGRESS;
9307 goto out;
9308 }
9309
9310 if (!wrqu->power.fixed)
9311 wrqu->power.value = IPW_TX_POWER_DEFAULT;
9312
9313 if (wrqu->power.flags != IW_TXPOW_DBM) {
9314 err = -EINVAL;
9315 goto out;
9316 }
9317
9318 if ((wrqu->power.value > IPW_TX_POWER_MAX) ||
9319 (wrqu->power.value < IPW_TX_POWER_MIN)) {
9320 err = -EINVAL;
9321 goto out;
9322 }
9323
9324 priv->tx_power = wrqu->power.value;
9325 err = ipw_set_tx_power(priv);
9326 out:
9327 mutex_unlock(&priv->mutex);
9328 return err;
9329 }
9330
9331 static int ipw_wx_get_txpow(struct net_device *dev,
9332 struct iw_request_info *info,
9333 union iwreq_data *wrqu, char *extra)
9334 {
9335 struct ipw_priv *priv = libipw_priv(dev);
9336 mutex_lock(&priv->mutex);
9337 wrqu->power.value = priv->tx_power;
9338 wrqu->power.fixed = 1;
9339 wrqu->power.flags = IW_TXPOW_DBM;
9340 wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
9341 mutex_unlock(&priv->mutex);
9342
9343 IPW_DEBUG_WX("GET TX Power -> %s %d\n",
9344 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9345
9346 return 0;
9347 }
9348
9349 static int ipw_wx_set_frag(struct net_device *dev,
9350 struct iw_request_info *info,
9351 union iwreq_data *wrqu, char *extra)
9352 {
9353 struct ipw_priv *priv = libipw_priv(dev);
9354 mutex_lock(&priv->mutex);
9355 if (wrqu->frag.disabled || !wrqu->frag.fixed)
9356 priv->ieee->fts = DEFAULT_FTS;
9357 else {
9358 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
9359 wrqu->frag.value > MAX_FRAG_THRESHOLD) {
9360 mutex_unlock(&priv->mutex);
9361 return -EINVAL;
9362 }
9363
9364 priv->ieee->fts = wrqu->frag.value & ~0x1;
9365 }
9366
9367 ipw_send_frag_threshold(priv, wrqu->frag.value);
9368 mutex_unlock(&priv->mutex);
9369 IPW_DEBUG_WX("SET Frag Threshold -> %d\n", wrqu->frag.value);
9370 return 0;
9371 }
9372
9373 static int ipw_wx_get_frag(struct net_device *dev,
9374 struct iw_request_info *info,
9375 union iwreq_data *wrqu, char *extra)
9376 {
9377 struct ipw_priv *priv = libipw_priv(dev);
9378 mutex_lock(&priv->mutex);
9379 wrqu->frag.value = priv->ieee->fts;
9380 wrqu->frag.fixed = 0; /* no auto select */
9381 wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS);
9382 mutex_unlock(&priv->mutex);
9383 IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value);
9384
9385 return 0;
9386 }
9387
9388 static int ipw_wx_set_retry(struct net_device *dev,
9389 struct iw_request_info *info,
9390 union iwreq_data *wrqu, char *extra)
9391 {
9392 struct ipw_priv *priv = libipw_priv(dev);
9393
9394 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
9395 return -EINVAL;
9396
9397 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
9398 return 0;
9399
9400 if (wrqu->retry.value < 0 || wrqu->retry.value >= 255)
9401 return -EINVAL;
9402
9403 mutex_lock(&priv->mutex);
9404 if (wrqu->retry.flags & IW_RETRY_SHORT)
9405 priv->short_retry_limit = (u8) wrqu->retry.value;
9406 else if (wrqu->retry.flags & IW_RETRY_LONG)
9407 priv->long_retry_limit = (u8) wrqu->retry.value;
9408 else {
9409 priv->short_retry_limit = (u8) wrqu->retry.value;
9410 priv->long_retry_limit = (u8) wrqu->retry.value;
9411 }
9412
9413 ipw_send_retry_limit(priv, priv->short_retry_limit,
9414 priv->long_retry_limit);
9415 mutex_unlock(&priv->mutex);
9416 IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n",
9417 priv->short_retry_limit, priv->long_retry_limit);
9418 return 0;
9419 }
9420
9421 static int ipw_wx_get_retry(struct net_device *dev,
9422 struct iw_request_info *info,
9423 union iwreq_data *wrqu, char *extra)
9424 {
9425 struct ipw_priv *priv = libipw_priv(dev);
9426
9427 mutex_lock(&priv->mutex);
9428 wrqu->retry.disabled = 0;
9429
9430 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
9431 mutex_unlock(&priv->mutex);
9432 return -EINVAL;
9433 }
9434
9435 if (wrqu->retry.flags & IW_RETRY_LONG) {
9436 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
9437 wrqu->retry.value = priv->long_retry_limit;
9438 } else if (wrqu->retry.flags & IW_RETRY_SHORT) {
9439 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
9440 wrqu->retry.value = priv->short_retry_limit;
9441 } else {
9442 wrqu->retry.flags = IW_RETRY_LIMIT;
9443 wrqu->retry.value = priv->short_retry_limit;
9444 }
9445 mutex_unlock(&priv->mutex);
9446
9447 IPW_DEBUG_WX("GET retry -> %d\n", wrqu->retry.value);
9448
9449 return 0;
9450 }
9451
9452 static int ipw_wx_set_scan(struct net_device *dev,
9453 struct iw_request_info *info,
9454 union iwreq_data *wrqu, char *extra)
9455 {
9456 struct ipw_priv *priv = libipw_priv(dev);
9457 struct iw_scan_req *req = (struct iw_scan_req *)extra;
9458 struct delayed_work *work = NULL;
9459
9460 mutex_lock(&priv->mutex);
9461
9462 priv->user_requested_scan = 1;
9463
9464 if (wrqu->data.length == sizeof(struct iw_scan_req)) {
9465 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
9466 int len = min((int)req->essid_len,
9467 (int)sizeof(priv->direct_scan_ssid));
9468 memcpy(priv->direct_scan_ssid, req->essid, len);
9469 priv->direct_scan_ssid_len = len;
9470 work = &priv->request_direct_scan;
9471 } else if (req->scan_type == IW_SCAN_TYPE_PASSIVE) {
9472 work = &priv->request_passive_scan;
9473 }
9474 } else {
9475 /* Normal active broadcast scan */
9476 work = &priv->request_scan;
9477 }
9478
9479 mutex_unlock(&priv->mutex);
9480
9481 IPW_DEBUG_WX("Start scan\n");
9482
9483 schedule_delayed_work(work, 0);
9484
9485 return 0;
9486 }
9487
9488 static int ipw_wx_get_scan(struct net_device *dev,
9489 struct iw_request_info *info,
9490 union iwreq_data *wrqu, char *extra)
9491 {
9492 struct ipw_priv *priv = libipw_priv(dev);
9493 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
9494 }
9495
9496 static int ipw_wx_set_encode(struct net_device *dev,
9497 struct iw_request_info *info,
9498 union iwreq_data *wrqu, char *key)
9499 {
9500 struct ipw_priv *priv = libipw_priv(dev);
9501 int ret;
9502 u32 cap = priv->capability;
9503
9504 mutex_lock(&priv->mutex);
9505 ret = libipw_wx_set_encode(priv->ieee, info, wrqu, key);
9506
9507 /* In IBSS mode, we need to notify the firmware to update
9508 * the beacon info after we changed the capability. */
9509 if (cap != priv->capability &&
9510 priv->ieee->iw_mode == IW_MODE_ADHOC &&
9511 priv->status & STATUS_ASSOCIATED)
9512 ipw_disassociate(priv);
9513
9514 mutex_unlock(&priv->mutex);
9515 return ret;
9516 }
9517
9518 static int ipw_wx_get_encode(struct net_device *dev,
9519 struct iw_request_info *info,
9520 union iwreq_data *wrqu, char *key)
9521 {
9522 struct ipw_priv *priv = libipw_priv(dev);
9523 return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
9524 }
9525
9526 static int ipw_wx_set_power(struct net_device *dev,
9527 struct iw_request_info *info,
9528 union iwreq_data *wrqu, char *extra)
9529 {
9530 struct ipw_priv *priv = libipw_priv(dev);
9531 int err;
9532 mutex_lock(&priv->mutex);
9533 if (wrqu->power.disabled) {
9534 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
9535 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
9536 if (err) {
9537 IPW_DEBUG_WX("failed setting power mode.\n");
9538 mutex_unlock(&priv->mutex);
9539 return err;
9540 }
9541 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
9542 mutex_unlock(&priv->mutex);
9543 return 0;
9544 }
9545
9546 switch (wrqu->power.flags & IW_POWER_MODE) {
9547 case IW_POWER_ON: /* If not specified */
9548 case IW_POWER_MODE: /* If set all mask */
9549 case IW_POWER_ALL_R: /* If explicitly state all */
9550 break;
9551 default: /* Otherwise we don't support it */
9552 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
9553 wrqu->power.flags);
9554 mutex_unlock(&priv->mutex);
9555 return -EOPNOTSUPP;
9556 }
9557
9558 /* If the user hasn't specified a power management mode yet, default
9559 * to BATTERY */
9560 if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
9561 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
9562 else
9563 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
9564
9565 err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
9566 if (err) {
9567 IPW_DEBUG_WX("failed setting power mode.\n");
9568 mutex_unlock(&priv->mutex);
9569 return err;
9570 }
9571
9572 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
9573 mutex_unlock(&priv->mutex);
9574 return 0;
9575 }
9576
9577 static int ipw_wx_get_power(struct net_device *dev,
9578 struct iw_request_info *info,
9579 union iwreq_data *wrqu, char *extra)
9580 {
9581 struct ipw_priv *priv = libipw_priv(dev);
9582 mutex_lock(&priv->mutex);
9583 if (!(priv->power_mode & IPW_POWER_ENABLED))
9584 wrqu->power.disabled = 1;
9585 else
9586 wrqu->power.disabled = 0;
9587
9588 mutex_unlock(&priv->mutex);
9589 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
9590
9591 return 0;
9592 }
9593
9594 static int ipw_wx_set_powermode(struct net_device *dev,
9595 struct iw_request_info *info,
9596 union iwreq_data *wrqu, char *extra)
9597 {
9598 struct ipw_priv *priv = libipw_priv(dev);
9599 int mode = *(int *)extra;
9600 int err;
9601
9602 mutex_lock(&priv->mutex);
9603 if ((mode < 1) || (mode > IPW_POWER_LIMIT))
9604 mode = IPW_POWER_AC;
9605
9606 if (IPW_POWER_LEVEL(priv->power_mode) != mode) {
9607 err = ipw_send_power_mode(priv, mode);
9608 if (err) {
9609 IPW_DEBUG_WX("failed setting power mode.\n");
9610 mutex_unlock(&priv->mutex);
9611 return err;
9612 }
9613 priv->power_mode = IPW_POWER_ENABLED | mode;
9614 }
9615 mutex_unlock(&priv->mutex);
9616 return 0;
9617 }
9618
9619 #define MAX_WX_STRING 80
9620 static int ipw_wx_get_powermode(struct net_device *dev,
9621 struct iw_request_info *info,
9622 union iwreq_data *wrqu, char *extra)
9623 {
9624 struct ipw_priv *priv = libipw_priv(dev);
9625 int level = IPW_POWER_LEVEL(priv->power_mode);
9626 char *p = extra;
9627
9628 p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
9629
9630 switch (level) {
9631 case IPW_POWER_AC:
9632 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
9633 break;
9634 case IPW_POWER_BATTERY:
9635 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
9636 break;
9637 default:
9638 p += snprintf(p, MAX_WX_STRING - (p - extra),
9639 "(Timeout %dms, Period %dms)",
9640 timeout_duration[level - 1] / 1000,
9641 period_duration[level - 1] / 1000);
9642 }
9643
9644 if (!(priv->power_mode & IPW_POWER_ENABLED))
9645 p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF");
9646
9647 wrqu->data.length = p - extra + 1;
9648
9649 return 0;
9650 }
9651
9652 static int ipw_wx_set_wireless_mode(struct net_device *dev,
9653 struct iw_request_info *info,
9654 union iwreq_data *wrqu, char *extra)
9655 {
9656 struct ipw_priv *priv = libipw_priv(dev);
9657 int mode = *(int *)extra;
9658 u8 band = 0, modulation = 0;
9659
9660 if (mode == 0 || mode & ~IEEE_MODE_MASK) {
9661 IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode);
9662 return -EINVAL;
9663 }
9664 mutex_lock(&priv->mutex);
9665 if (priv->adapter == IPW_2915ABG) {
9666 priv->ieee->abg_true = 1;
9667 if (mode & IEEE_A) {
9668 band |= LIBIPW_52GHZ_BAND;
9669 modulation |= LIBIPW_OFDM_MODULATION;
9670 } else
9671 priv->ieee->abg_true = 0;
9672 } else {
9673 if (mode & IEEE_A) {
9674 IPW_WARNING("Attempt to set 2200BG into "
9675 "802.11a mode\n");
9676 mutex_unlock(&priv->mutex);
9677 return -EINVAL;
9678 }
9679
9680 priv->ieee->abg_true = 0;
9681 }
9682
9683 if (mode & IEEE_B) {
9684 band |= LIBIPW_24GHZ_BAND;
9685 modulation |= LIBIPW_CCK_MODULATION;
9686 } else
9687 priv->ieee->abg_true = 0;
9688
9689 if (mode & IEEE_G) {
9690 band |= LIBIPW_24GHZ_BAND;
9691 modulation |= LIBIPW_OFDM_MODULATION;
9692 } else
9693 priv->ieee->abg_true = 0;
9694
9695 priv->ieee->mode = mode;
9696 priv->ieee->freq_band = band;
9697 priv->ieee->modulation = modulation;
9698 init_supported_rates(priv, &priv->rates);
9699
9700 /* Network configuration changed -- force [re]association */
9701 IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n");
9702 if (!ipw_disassociate(priv)) {
9703 ipw_send_supported_rates(priv, &priv->rates);
9704 ipw_associate(priv);
9705 }
9706
9707 /* Update the band LEDs */
9708 ipw_led_band_on(priv);
9709
9710 IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
9711 mode & IEEE_A ? 'a' : '.',
9712 mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.');
9713 mutex_unlock(&priv->mutex);
9714 return 0;
9715 }
9716
9717 static int ipw_wx_get_wireless_mode(struct net_device *dev,
9718 struct iw_request_info *info,
9719 union iwreq_data *wrqu, char *extra)
9720 {
9721 struct ipw_priv *priv = libipw_priv(dev);
9722 mutex_lock(&priv->mutex);
9723 switch (priv->ieee->mode) {
9724 case IEEE_A:
9725 strncpy(extra, "802.11a (1)", MAX_WX_STRING);
9726 break;
9727 case IEEE_B:
9728 strncpy(extra, "802.11b (2)", MAX_WX_STRING);
9729 break;
9730 case IEEE_A | IEEE_B:
9731 strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
9732 break;
9733 case IEEE_G:
9734 strncpy(extra, "802.11g (4)", MAX_WX_STRING);
9735 break;
9736 case IEEE_A | IEEE_G:
9737 strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
9738 break;
9739 case IEEE_B | IEEE_G:
9740 strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
9741 break;
9742 case IEEE_A | IEEE_B | IEEE_G:
9743 strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
9744 break;
9745 default:
9746 strncpy(extra, "unknown", MAX_WX_STRING);
9747 break;
9748 }
9749 extra[MAX_WX_STRING - 1] = '\0';
9750
9751 IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
9752
9753 wrqu->data.length = strlen(extra) + 1;
9754 mutex_unlock(&priv->mutex);
9755
9756 return 0;
9757 }
9758
9759 static int ipw_wx_set_preamble(struct net_device *dev,
9760 struct iw_request_info *info,
9761 union iwreq_data *wrqu, char *extra)
9762 {
9763 struct ipw_priv *priv = libipw_priv(dev);
9764 int mode = *(int *)extra;
9765 mutex_lock(&priv->mutex);
9766 /* Switching from SHORT -> LONG requires a disassociation */
9767 if (mode == 1) {
9768 if (!(priv->config & CFG_PREAMBLE_LONG)) {
9769 priv->config |= CFG_PREAMBLE_LONG;
9770
9771 /* Network configuration changed -- force [re]association */
9772 IPW_DEBUG_ASSOC
9773 ("[re]association triggered due to preamble change.\n");
9774 if (!ipw_disassociate(priv))
9775 ipw_associate(priv);
9776 }
9777 goto done;
9778 }
9779
9780 if (mode == 0) {
9781 priv->config &= ~CFG_PREAMBLE_LONG;
9782 goto done;
9783 }
9784 mutex_unlock(&priv->mutex);
9785 return -EINVAL;
9786
9787 done:
9788 mutex_unlock(&priv->mutex);
9789 return 0;
9790 }
9791
9792 static int ipw_wx_get_preamble(struct net_device *dev,
9793 struct iw_request_info *info,
9794 union iwreq_data *wrqu, char *extra)
9795 {
9796 struct ipw_priv *priv = libipw_priv(dev);
9797 mutex_lock(&priv->mutex);
9798 if (priv->config & CFG_PREAMBLE_LONG)
9799 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
9800 else
9801 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
9802 mutex_unlock(&priv->mutex);
9803 return 0;
9804 }
9805
9806 #ifdef CONFIG_IPW2200_MONITOR
9807 static int ipw_wx_set_monitor(struct net_device *dev,
9808 struct iw_request_info *info,
9809 union iwreq_data *wrqu, char *extra)
9810 {
9811 struct ipw_priv *priv = libipw_priv(dev);
9812 int *parms = (int *)extra;
9813 int enable = (parms[0] > 0);
9814 mutex_lock(&priv->mutex);
9815 IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]);
9816 if (enable) {
9817 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9818 #ifdef CONFIG_IPW2200_RADIOTAP
9819 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
9820 #else
9821 priv->net_dev->type = ARPHRD_IEEE80211;
9822 #endif
9823 schedule_work(&priv->adapter_restart);
9824 }
9825
9826 ipw_set_channel(priv, parms[1]);
9827 } else {
9828 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9829 mutex_unlock(&priv->mutex);
9830 return 0;
9831 }
9832 priv->net_dev->type = ARPHRD_ETHER;
9833 schedule_work(&priv->adapter_restart);
9834 }
9835 mutex_unlock(&priv->mutex);
9836 return 0;
9837 }
9838
9839 #endif /* CONFIG_IPW2200_MONITOR */
9840
9841 static int ipw_wx_reset(struct net_device *dev,
9842 struct iw_request_info *info,
9843 union iwreq_data *wrqu, char *extra)
9844 {
9845 struct ipw_priv *priv = libipw_priv(dev);
9846 IPW_DEBUG_WX("RESET\n");
9847 schedule_work(&priv->adapter_restart);
9848 return 0;
9849 }
9850
9851 static int ipw_wx_sw_reset(struct net_device *dev,
9852 struct iw_request_info *info,
9853 union iwreq_data *wrqu, char *extra)
9854 {
9855 struct ipw_priv *priv = libipw_priv(dev);
9856 union iwreq_data wrqu_sec = {
9857 .encoding = {
9858 .flags = IW_ENCODE_DISABLED,
9859 },
9860 };
9861 int ret;
9862
9863 IPW_DEBUG_WX("SW_RESET\n");
9864
9865 mutex_lock(&priv->mutex);
9866
9867 ret = ipw_sw_reset(priv, 2);
9868 if (!ret) {
9869 free_firmware();
9870 ipw_adapter_restart(priv);
9871 }
9872
9873 /* The SW reset bit might have been toggled on by the 'disable'
9874 * module parameter, so take appropriate action */
9875 ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW);
9876
9877 mutex_unlock(&priv->mutex);
9878 libipw_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL);
9879 mutex_lock(&priv->mutex);
9880
9881 if (!(priv->status & STATUS_RF_KILL_MASK)) {
9882 /* Configuration likely changed -- force [re]association */
9883 IPW_DEBUG_ASSOC("[re]association triggered due to sw "
9884 "reset.\n");
9885 if (!ipw_disassociate(priv))
9886 ipw_associate(priv);
9887 }
9888
9889 mutex_unlock(&priv->mutex);
9890
9891 return 0;
9892 }
9893
9894 /* Rebase the WE IOCTLs to zero for the handler array */
9895 static iw_handler ipw_wx_handlers[] = {
9896 IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
9897 IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq),
9898 IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq),
9899 IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode),
9900 IW_HANDLER(SIOCGIWMODE, ipw_wx_get_mode),
9901 IW_HANDLER(SIOCSIWSENS, ipw_wx_set_sens),
9902 IW_HANDLER(SIOCGIWSENS, ipw_wx_get_sens),
9903 IW_HANDLER(SIOCGIWRANGE, ipw_wx_get_range),
9904 IW_HANDLER(SIOCSIWAP, ipw_wx_set_wap),
9905 IW_HANDLER(SIOCGIWAP, ipw_wx_get_wap),
9906 IW_HANDLER(SIOCSIWSCAN, ipw_wx_set_scan),
9907 IW_HANDLER(SIOCGIWSCAN, ipw_wx_get_scan),
9908 IW_HANDLER(SIOCSIWESSID, ipw_wx_set_essid),
9909 IW_HANDLER(SIOCGIWESSID, ipw_wx_get_essid),
9910 IW_HANDLER(SIOCSIWNICKN, ipw_wx_set_nick),
9911 IW_HANDLER(SIOCGIWNICKN, ipw_wx_get_nick),
9912 IW_HANDLER(SIOCSIWRATE, ipw_wx_set_rate),
9913 IW_HANDLER(SIOCGIWRATE, ipw_wx_get_rate),
9914 IW_HANDLER(SIOCSIWRTS, ipw_wx_set_rts),
9915 IW_HANDLER(SIOCGIWRTS, ipw_wx_get_rts),
9916 IW_HANDLER(SIOCSIWFRAG, ipw_wx_set_frag),
9917 IW_HANDLER(SIOCGIWFRAG, ipw_wx_get_frag),
9918 IW_HANDLER(SIOCSIWTXPOW, ipw_wx_set_txpow),
9919 IW_HANDLER(SIOCGIWTXPOW, ipw_wx_get_txpow),
9920 IW_HANDLER(SIOCSIWRETRY, ipw_wx_set_retry),
9921 IW_HANDLER(SIOCGIWRETRY, ipw_wx_get_retry),
9922 IW_HANDLER(SIOCSIWENCODE, ipw_wx_set_encode),
9923 IW_HANDLER(SIOCGIWENCODE, ipw_wx_get_encode),
9924 IW_HANDLER(SIOCSIWPOWER, ipw_wx_set_power),
9925 IW_HANDLER(SIOCGIWPOWER, ipw_wx_get_power),
9926 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
9927 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
9928 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
9929 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
9930 IW_HANDLER(SIOCSIWGENIE, ipw_wx_set_genie),
9931 IW_HANDLER(SIOCGIWGENIE, ipw_wx_get_genie),
9932 IW_HANDLER(SIOCSIWMLME, ipw_wx_set_mlme),
9933 IW_HANDLER(SIOCSIWAUTH, ipw_wx_set_auth),
9934 IW_HANDLER(SIOCGIWAUTH, ipw_wx_get_auth),
9935 IW_HANDLER(SIOCSIWENCODEEXT, ipw_wx_set_encodeext),
9936 IW_HANDLER(SIOCGIWENCODEEXT, ipw_wx_get_encodeext),
9937 };
9938
9939 enum {
9940 IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV,
9941 IPW_PRIV_GET_POWER,
9942 IPW_PRIV_SET_MODE,
9943 IPW_PRIV_GET_MODE,
9944 IPW_PRIV_SET_PREAMBLE,
9945 IPW_PRIV_GET_PREAMBLE,
9946 IPW_PRIV_RESET,
9947 IPW_PRIV_SW_RESET,
9948 #ifdef CONFIG_IPW2200_MONITOR
9949 IPW_PRIV_SET_MONITOR,
9950 #endif
9951 };
9952
9953 static struct iw_priv_args ipw_priv_args[] = {
9954 {
9955 .cmd = IPW_PRIV_SET_POWER,
9956 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9957 .name = "set_power"},
9958 {
9959 .cmd = IPW_PRIV_GET_POWER,
9960 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9961 .name = "get_power"},
9962 {
9963 .cmd = IPW_PRIV_SET_MODE,
9964 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9965 .name = "set_mode"},
9966 {
9967 .cmd = IPW_PRIV_GET_MODE,
9968 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9969 .name = "get_mode"},
9970 {
9971 .cmd = IPW_PRIV_SET_PREAMBLE,
9972 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9973 .name = "set_preamble"},
9974 {
9975 .cmd = IPW_PRIV_GET_PREAMBLE,
9976 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ,
9977 .name = "get_preamble"},
9978 {
9979 IPW_PRIV_RESET,
9980 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
9981 {
9982 IPW_PRIV_SW_RESET,
9983 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"},
9984 #ifdef CONFIG_IPW2200_MONITOR
9985 {
9986 IPW_PRIV_SET_MONITOR,
9987 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
9988 #endif /* CONFIG_IPW2200_MONITOR */
9989 };
9990
9991 static iw_handler ipw_priv_handler[] = {
9992 ipw_wx_set_powermode,
9993 ipw_wx_get_powermode,
9994 ipw_wx_set_wireless_mode,
9995 ipw_wx_get_wireless_mode,
9996 ipw_wx_set_preamble,
9997 ipw_wx_get_preamble,
9998 ipw_wx_reset,
9999 ipw_wx_sw_reset,
10000 #ifdef CONFIG_IPW2200_MONITOR
10001 ipw_wx_set_monitor,
10002 #endif
10003 };
10004
10005 static const struct iw_handler_def ipw_wx_handler_def = {
10006 .standard = ipw_wx_handlers,
10007 .num_standard = ARRAY_SIZE(ipw_wx_handlers),
10008 .num_private = ARRAY_SIZE(ipw_priv_handler),
10009 .num_private_args = ARRAY_SIZE(ipw_priv_args),
10010 .private = ipw_priv_handler,
10011 .private_args = ipw_priv_args,
10012 .get_wireless_stats = ipw_get_wireless_stats,
10013 };
10014
10015 /*
10016 * Get wireless statistics.
10017 * Called by /proc/net/wireless
10018 * Also called by SIOCGIWSTATS
10019 */
10020 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev)
10021 {
10022 struct ipw_priv *priv = libipw_priv(dev);
10023 struct iw_statistics *wstats;
10024
10025 wstats = &priv->wstats;
10026
10027 /* if hw is disabled, then ipw_get_ordinal() can't be called.
10028 * netdev->get_wireless_stats seems to be called before fw is
10029 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
10030 * and associated; if not associcated, the values are all meaningless
10031 * anyway, so set them all to NULL and INVALID */
10032 if (!(priv->status & STATUS_ASSOCIATED)) {
10033 wstats->miss.beacon = 0;
10034 wstats->discard.retries = 0;
10035 wstats->qual.qual = 0;
10036 wstats->qual.level = 0;
10037 wstats->qual.noise = 0;
10038 wstats->qual.updated = 7;
10039 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
10040 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
10041 return wstats;
10042 }
10043
10044 wstats->qual.qual = priv->quality;
10045 wstats->qual.level = priv->exp_avg_rssi;
10046 wstats->qual.noise = priv->exp_avg_noise;
10047 wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
10048 IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM;
10049
10050 wstats->miss.beacon = average_value(&priv->average_missed_beacons);
10051 wstats->discard.retries = priv->last_tx_failures;
10052 wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
10053
10054 /* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
10055 goto fail_get_ordinal;
10056 wstats->discard.retries += tx_retry; */
10057
10058 return wstats;
10059 }
10060
10061 /* net device stuff */
10062
10063 static void init_sys_config(struct ipw_sys_config *sys_config)
10064 {
10065 memset(sys_config, 0, sizeof(struct ipw_sys_config));
10066 sys_config->bt_coexistence = 0;
10067 sys_config->answer_broadcast_ssid_probe = 0;
10068 sys_config->accept_all_data_frames = 0;
10069 sys_config->accept_non_directed_frames = 1;
10070 sys_config->exclude_unicast_unencrypted = 0;
10071 sys_config->disable_unicast_decryption = 1;
10072 sys_config->exclude_multicast_unencrypted = 0;
10073 sys_config->disable_multicast_decryption = 1;
10074 if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B)
10075 antenna = CFG_SYS_ANTENNA_BOTH;
10076 sys_config->antenna_diversity = antenna;
10077 sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */
10078 sys_config->dot11g_auto_detection = 0;
10079 sys_config->enable_cts_to_self = 0;
10080 sys_config->bt_coexist_collision_thr = 0;
10081 sys_config->pass_noise_stats_to_host = 1; /* 1 -- fix for 256 */
10082 sys_config->silence_threshold = 0x1e;
10083 }
10084
10085 static int ipw_net_open(struct net_device *dev)
10086 {
10087 IPW_DEBUG_INFO("dev->open\n");
10088 netif_start_queue(dev);
10089 return 0;
10090 }
10091
10092 static int ipw_net_stop(struct net_device *dev)
10093 {
10094 IPW_DEBUG_INFO("dev->close\n");
10095 netif_stop_queue(dev);
10096 return 0;
10097 }
10098
10099 /*
10100 todo:
10101
10102 modify to send one tfd per fragment instead of using chunking. otherwise
10103 we need to heavily modify the libipw_skb_to_txb.
10104 */
10105
10106 static int ipw_tx_skb(struct ipw_priv *priv, struct libipw_txb *txb,
10107 int pri)
10108 {
10109 struct libipw_hdr_3addrqos *hdr = (struct libipw_hdr_3addrqos *)
10110 txb->fragments[0]->data;
10111 int i = 0;
10112 struct tfd_frame *tfd;
10113 #ifdef CONFIG_IPW2200_QOS
10114 int tx_id = ipw_get_tx_queue_number(priv, pri);
10115 struct clx2_tx_queue *txq = &priv->txq[tx_id];
10116 #else
10117 struct clx2_tx_queue *txq = &priv->txq[0];
10118 #endif
10119 struct clx2_queue *q = &txq->q;
10120 u8 id, hdr_len, unicast;
10121 int fc;
10122
10123 if (!(priv->status & STATUS_ASSOCIATED))
10124 goto drop;
10125
10126 hdr_len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
10127 switch (priv->ieee->iw_mode) {
10128 case IW_MODE_ADHOC:
10129 unicast = !is_multicast_ether_addr(hdr->addr1);
10130 id = ipw_find_station(priv, hdr->addr1);
10131 if (id == IPW_INVALID_STATION) {
10132 id = ipw_add_station(priv, hdr->addr1);
10133 if (id == IPW_INVALID_STATION) {
10134 IPW_WARNING("Attempt to send data to "
10135 "invalid cell: %pM\n",
10136 hdr->addr1);
10137 goto drop;
10138 }
10139 }
10140 break;
10141
10142 case IW_MODE_INFRA:
10143 default:
10144 unicast = !is_multicast_ether_addr(hdr->addr3);
10145 id = 0;
10146 break;
10147 }
10148
10149 tfd = &txq->bd[q->first_empty];
10150 txq->txb[q->first_empty] = txb;
10151 memset(tfd, 0, sizeof(*tfd));
10152 tfd->u.data.station_number = id;
10153
10154 tfd->control_flags.message_type = TX_FRAME_TYPE;
10155 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
10156
10157 tfd->u.data.cmd_id = DINO_CMD_TX;
10158 tfd->u.data.len = cpu_to_le16(txb->payload_size);
10159
10160 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
10161 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK;
10162 else
10163 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM;
10164
10165 if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE)
10166 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE;
10167
10168 fc = le16_to_cpu(hdr->frame_ctl);
10169 hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS);
10170
10171 memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
10172
10173 if (likely(unicast))
10174 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10175
10176 if (txb->encrypted && !priv->ieee->host_encrypt) {
10177 switch (priv->ieee->sec.level) {
10178 case SEC_LEVEL_3:
10179 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10180 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10181 /* XXX: ACK flag must be set for CCMP even if it
10182 * is a multicast/broadcast packet, because CCMP
10183 * group communication encrypted by GTK is
10184 * actually done by the AP. */
10185 if (!unicast)
10186 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10187
10188 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10189 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM;
10190 tfd->u.data.key_index = 0;
10191 tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE;
10192 break;
10193 case SEC_LEVEL_2:
10194 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10195 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10196 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10197 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP;
10198 tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE;
10199 break;
10200 case SEC_LEVEL_1:
10201 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10202 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10203 tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx;
10204 if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <=
10205 40)
10206 tfd->u.data.key_index |= DCT_WEP_KEY_64Bit;
10207 else
10208 tfd->u.data.key_index |= DCT_WEP_KEY_128Bit;
10209 break;
10210 case SEC_LEVEL_0:
10211 break;
10212 default:
10213 printk(KERN_ERR "Unknown security level %d\n",
10214 priv->ieee->sec.level);
10215 break;
10216 }
10217 } else
10218 /* No hardware encryption */
10219 tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP;
10220
10221 #ifdef CONFIG_IPW2200_QOS
10222 if (fc & IEEE80211_STYPE_QOS_DATA)
10223 ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data));
10224 #endif /* CONFIG_IPW2200_QOS */
10225
10226 /* payload */
10227 tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2),
10228 txb->nr_frags));
10229 IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n",
10230 txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks));
10231 for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) {
10232 IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n",
10233 i, le32_to_cpu(tfd->u.data.num_chunks),
10234 txb->fragments[i]->len - hdr_len);
10235 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
10236 i, tfd->u.data.num_chunks,
10237 txb->fragments[i]->len - hdr_len);
10238 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
10239 txb->fragments[i]->len - hdr_len);
10240
10241 tfd->u.data.chunk_ptr[i] =
10242 cpu_to_le32(pci_map_single
10243 (priv->pci_dev,
10244 txb->fragments[i]->data + hdr_len,
10245 txb->fragments[i]->len - hdr_len,
10246 PCI_DMA_TODEVICE));
10247 tfd->u.data.chunk_len[i] =
10248 cpu_to_le16(txb->fragments[i]->len - hdr_len);
10249 }
10250
10251 if (i != txb->nr_frags) {
10252 struct sk_buff *skb;
10253 u16 remaining_bytes = 0;
10254 int j;
10255
10256 for (j = i; j < txb->nr_frags; j++)
10257 remaining_bytes += txb->fragments[j]->len - hdr_len;
10258
10259 printk(KERN_INFO "Trying to reallocate for %d bytes\n",
10260 remaining_bytes);
10261 skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
10262 if (skb != NULL) {
10263 tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes);
10264 for (j = i; j < txb->nr_frags; j++) {
10265 int size = txb->fragments[j]->len - hdr_len;
10266
10267 printk(KERN_INFO "Adding frag %d %d...\n",
10268 j, size);
10269 skb_put_data(skb,
10270 txb->fragments[j]->data + hdr_len,
10271 size);
10272 }
10273 dev_kfree_skb_any(txb->fragments[i]);
10274 txb->fragments[i] = skb;
10275 tfd->u.data.chunk_ptr[i] =
10276 cpu_to_le32(pci_map_single
10277 (priv->pci_dev, skb->data,
10278 remaining_bytes,
10279 PCI_DMA_TODEVICE));
10280
10281 le32_add_cpu(&tfd->u.data.num_chunks, 1);
10282 }
10283 }
10284
10285 /* kick DMA */
10286 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
10287 ipw_write32(priv, q->reg_w, q->first_empty);
10288
10289 if (ipw_tx_queue_space(q) < q->high_mark)
10290 netif_stop_queue(priv->net_dev);
10291
10292 return NETDEV_TX_OK;
10293
10294 drop:
10295 IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
10296 libipw_txb_free(txb);
10297 return NETDEV_TX_OK;
10298 }
10299
10300 static int ipw_net_is_queue_full(struct net_device *dev, int pri)
10301 {
10302 struct ipw_priv *priv = libipw_priv(dev);
10303 #ifdef CONFIG_IPW2200_QOS
10304 int tx_id = ipw_get_tx_queue_number(priv, pri);
10305 struct clx2_tx_queue *txq = &priv->txq[tx_id];
10306 #else
10307 struct clx2_tx_queue *txq = &priv->txq[0];
10308 #endif /* CONFIG_IPW2200_QOS */
10309
10310 if (ipw_tx_queue_space(&txq->q) < txq->q.high_mark)
10311 return 1;
10312
10313 return 0;
10314 }
10315
10316 #ifdef CONFIG_IPW2200_PROMISCUOUS
10317 static void ipw_handle_promiscuous_tx(struct ipw_priv *priv,
10318 struct libipw_txb *txb)
10319 {
10320 struct libipw_rx_stats dummystats;
10321 struct ieee80211_hdr *hdr;
10322 u8 n;
10323 u16 filter = priv->prom_priv->filter;
10324 int hdr_only = 0;
10325
10326 if (filter & IPW_PROM_NO_TX)
10327 return;
10328
10329 memset(&dummystats, 0, sizeof(dummystats));
10330
10331 /* Filtering of fragment chains is done against the first fragment */
10332 hdr = (void *)txb->fragments[0]->data;
10333 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) {
10334 if (filter & IPW_PROM_NO_MGMT)
10335 return;
10336 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
10337 hdr_only = 1;
10338 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) {
10339 if (filter & IPW_PROM_NO_CTL)
10340 return;
10341 if (filter & IPW_PROM_CTL_HEADER_ONLY)
10342 hdr_only = 1;
10343 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) {
10344 if (filter & IPW_PROM_NO_DATA)
10345 return;
10346 if (filter & IPW_PROM_DATA_HEADER_ONLY)
10347 hdr_only = 1;
10348 }
10349
10350 for(n=0; n<txb->nr_frags; ++n) {
10351 struct sk_buff *src = txb->fragments[n];
10352 struct sk_buff *dst;
10353 struct ieee80211_radiotap_header *rt_hdr;
10354 int len;
10355
10356 if (hdr_only) {
10357 hdr = (void *)src->data;
10358 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control));
10359 } else
10360 len = src->len;
10361
10362 dst = alloc_skb(len + sizeof(*rt_hdr) + sizeof(u16)*2, GFP_ATOMIC);
10363 if (!dst)
10364 continue;
10365
10366 rt_hdr = skb_put(dst, sizeof(*rt_hdr));
10367
10368 rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION;
10369 rt_hdr->it_pad = 0;
10370 rt_hdr->it_present = 0; /* after all, it's just an idea */
10371 rt_hdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_CHANNEL);
10372
10373 *(__le16*)skb_put(dst, sizeof(u16)) = cpu_to_le16(
10374 ieee80211chan2mhz(priv->channel));
10375 if (priv->channel > 14) /* 802.11a */
10376 *(__le16*)skb_put(dst, sizeof(u16)) =
10377 cpu_to_le16(IEEE80211_CHAN_OFDM |
10378 IEEE80211_CHAN_5GHZ);
10379 else if (priv->ieee->mode == IEEE_B) /* 802.11b */
10380 *(__le16*)skb_put(dst, sizeof(u16)) =
10381 cpu_to_le16(IEEE80211_CHAN_CCK |
10382 IEEE80211_CHAN_2GHZ);
10383 else /* 802.11g */
10384 *(__le16*)skb_put(dst, sizeof(u16)) =
10385 cpu_to_le16(IEEE80211_CHAN_OFDM |
10386 IEEE80211_CHAN_2GHZ);
10387
10388 rt_hdr->it_len = cpu_to_le16(dst->len);
10389
10390 skb_copy_from_linear_data(src, skb_put(dst, len), len);
10391
10392 if (!libipw_rx(priv->prom_priv->ieee, dst, &dummystats))
10393 dev_kfree_skb_any(dst);
10394 }
10395 }
10396 #endif
10397
10398 static netdev_tx_t ipw_net_hard_start_xmit(struct libipw_txb *txb,
10399 struct net_device *dev, int pri)
10400 {
10401 struct ipw_priv *priv = libipw_priv(dev);
10402 unsigned long flags;
10403 netdev_tx_t ret;
10404
10405 IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
10406 spin_lock_irqsave(&priv->lock, flags);
10407
10408 #ifdef CONFIG_IPW2200_PROMISCUOUS
10409 if (rtap_iface && netif_running(priv->prom_net_dev))
10410 ipw_handle_promiscuous_tx(priv, txb);
10411 #endif
10412
10413 ret = ipw_tx_skb(priv, txb, pri);
10414 if (ret == NETDEV_TX_OK)
10415 __ipw_led_activity_on(priv);
10416 spin_unlock_irqrestore(&priv->lock, flags);
10417
10418 return ret;
10419 }
10420
10421 static void ipw_net_set_multicast_list(struct net_device *dev)
10422 {
10423
10424 }
10425
10426 static int ipw_net_set_mac_address(struct net_device *dev, void *p)
10427 {
10428 struct ipw_priv *priv = libipw_priv(dev);
10429 struct sockaddr *addr = p;
10430
10431 if (!is_valid_ether_addr(addr->sa_data))
10432 return -EADDRNOTAVAIL;
10433 mutex_lock(&priv->mutex);
10434 priv->config |= CFG_CUSTOM_MAC;
10435 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
10436 printk(KERN_INFO "%s: Setting MAC to %pM\n",
10437 priv->net_dev->name, priv->mac_addr);
10438 schedule_work(&priv->adapter_restart);
10439 mutex_unlock(&priv->mutex);
10440 return 0;
10441 }
10442
10443 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
10444 struct ethtool_drvinfo *info)
10445 {
10446 struct ipw_priv *p = libipw_priv(dev);
10447 char vers[64];
10448 char date[32];
10449 u32 len;
10450
10451 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
10452 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
10453
10454 len = sizeof(vers);
10455 ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
10456 len = sizeof(date);
10457 ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
10458
10459 snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)",
10460 vers, date);
10461 strlcpy(info->bus_info, pci_name(p->pci_dev),
10462 sizeof(info->bus_info));
10463 }
10464
10465 static u32 ipw_ethtool_get_link(struct net_device *dev)
10466 {
10467 struct ipw_priv *priv = libipw_priv(dev);
10468 return (priv->status & STATUS_ASSOCIATED) != 0;
10469 }
10470
10471 static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
10472 {
10473 return IPW_EEPROM_IMAGE_SIZE;
10474 }
10475
10476 static int ipw_ethtool_get_eeprom(struct net_device *dev,
10477 struct ethtool_eeprom *eeprom, u8 * bytes)
10478 {
10479 struct ipw_priv *p = libipw_priv(dev);
10480
10481 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10482 return -EINVAL;
10483 mutex_lock(&p->mutex);
10484 memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len);
10485 mutex_unlock(&p->mutex);
10486 return 0;
10487 }
10488
10489 static int ipw_ethtool_set_eeprom(struct net_device *dev,
10490 struct ethtool_eeprom *eeprom, u8 * bytes)
10491 {
10492 struct ipw_priv *p = libipw_priv(dev);
10493 int i;
10494
10495 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10496 return -EINVAL;
10497 mutex_lock(&p->mutex);
10498 memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len);
10499 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
10500 ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]);
10501 mutex_unlock(&p->mutex);
10502 return 0;
10503 }
10504
10505 static const struct ethtool_ops ipw_ethtool_ops = {
10506 .get_link = ipw_ethtool_get_link,
10507 .get_drvinfo = ipw_ethtool_get_drvinfo,
10508 .get_eeprom_len = ipw_ethtool_get_eeprom_len,
10509 .get_eeprom = ipw_ethtool_get_eeprom,
10510 .set_eeprom = ipw_ethtool_set_eeprom,
10511 };
10512
10513 static irqreturn_t ipw_isr(int irq, void *data)
10514 {
10515 struct ipw_priv *priv = data;
10516 u32 inta, inta_mask;
10517
10518 if (!priv)
10519 return IRQ_NONE;
10520
10521 spin_lock(&priv->irq_lock);
10522
10523 if (!(priv->status & STATUS_INT_ENABLED)) {
10524 /* IRQ is disabled */
10525 goto none;
10526 }
10527
10528 inta = ipw_read32(priv, IPW_INTA_RW);
10529 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
10530
10531 if (inta == 0xFFFFFFFF) {
10532 /* Hardware disappeared */
10533 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
10534 goto none;
10535 }
10536
10537 if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) {
10538 /* Shared interrupt */
10539 goto none;
10540 }
10541
10542 /* tell the device to stop sending interrupts */
10543 __ipw_disable_interrupts(priv);
10544
10545 /* ack current interrupts */
10546 inta &= (IPW_INTA_MASK_ALL & inta_mask);
10547 ipw_write32(priv, IPW_INTA_RW, inta);
10548
10549 /* Cache INTA value for our tasklet */
10550 priv->isr_inta = inta;
10551
10552 tasklet_schedule(&priv->irq_tasklet);
10553
10554 spin_unlock(&priv->irq_lock);
10555
10556 return IRQ_HANDLED;
10557 none:
10558 spin_unlock(&priv->irq_lock);
10559 return IRQ_NONE;
10560 }
10561
10562 static void ipw_rf_kill(void *adapter)
10563 {
10564 struct ipw_priv *priv = adapter;
10565 unsigned long flags;
10566
10567 spin_lock_irqsave(&priv->lock, flags);
10568
10569 if (rf_kill_active(priv)) {
10570 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
10571 schedule_delayed_work(&priv->rf_kill, 2 * HZ);
10572 goto exit_unlock;
10573 }
10574
10575 /* RF Kill is now disabled, so bring the device back up */
10576
10577 if (!(priv->status & STATUS_RF_KILL_MASK)) {
10578 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
10579 "device\n");
10580
10581 /* we can not do an adapter restart while inside an irq lock */
10582 schedule_work(&priv->adapter_restart);
10583 } else
10584 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
10585 "enabled\n");
10586
10587 exit_unlock:
10588 spin_unlock_irqrestore(&priv->lock, flags);
10589 }
10590
10591 static void ipw_bg_rf_kill(struct work_struct *work)
10592 {
10593 struct ipw_priv *priv =
10594 container_of(work, struct ipw_priv, rf_kill.work);
10595 mutex_lock(&priv->mutex);
10596 ipw_rf_kill(priv);
10597 mutex_unlock(&priv->mutex);
10598 }
10599
10600 static void ipw_link_up(struct ipw_priv *priv)
10601 {
10602 priv->last_seq_num = -1;
10603 priv->last_frag_num = -1;
10604 priv->last_packet_time = 0;
10605
10606 netif_carrier_on(priv->net_dev);
10607
10608 cancel_delayed_work(&priv->request_scan);
10609 cancel_delayed_work(&priv->request_direct_scan);
10610 cancel_delayed_work(&priv->request_passive_scan);
10611 cancel_delayed_work(&priv->scan_event);
10612 ipw_reset_stats(priv);
10613 /* Ensure the rate is updated immediately */
10614 priv->last_rate = ipw_get_current_rate(priv);
10615 ipw_gather_stats(priv);
10616 ipw_led_link_up(priv);
10617 notify_wx_assoc_event(priv);
10618
10619 if (priv->config & CFG_BACKGROUND_SCAN)
10620 schedule_delayed_work(&priv->request_scan, HZ);
10621 }
10622
10623 static void ipw_bg_link_up(struct work_struct *work)
10624 {
10625 struct ipw_priv *priv =
10626 container_of(work, struct ipw_priv, link_up);
10627 mutex_lock(&priv->mutex);
10628 ipw_link_up(priv);
10629 mutex_unlock(&priv->mutex);
10630 }
10631
10632 static void ipw_link_down(struct ipw_priv *priv)
10633 {
10634 ipw_led_link_down(priv);
10635 netif_carrier_off(priv->net_dev);
10636 notify_wx_assoc_event(priv);
10637
10638 /* Cancel any queued work ... */
10639 cancel_delayed_work(&priv->request_scan);
10640 cancel_delayed_work(&priv->request_direct_scan);
10641 cancel_delayed_work(&priv->request_passive_scan);
10642 cancel_delayed_work(&priv->adhoc_check);
10643 cancel_delayed_work(&priv->gather_stats);
10644
10645 ipw_reset_stats(priv);
10646
10647 if (!(priv->status & STATUS_EXIT_PENDING)) {
10648 /* Queue up another scan... */
10649 schedule_delayed_work(&priv->request_scan, 0);
10650 } else
10651 cancel_delayed_work(&priv->scan_event);
10652 }
10653
10654 static void ipw_bg_link_down(struct work_struct *work)
10655 {
10656 struct ipw_priv *priv =
10657 container_of(work, struct ipw_priv, link_down);
10658 mutex_lock(&priv->mutex);
10659 ipw_link_down(priv);
10660 mutex_unlock(&priv->mutex);
10661 }
10662
10663 static int ipw_setup_deferred_work(struct ipw_priv *priv)
10664 {
10665 int ret = 0;
10666
10667 init_waitqueue_head(&priv->wait_command_queue);
10668 init_waitqueue_head(&priv->wait_state);
10669
10670 INIT_DELAYED_WORK(&priv->adhoc_check, ipw_bg_adhoc_check);
10671 INIT_WORK(&priv->associate, ipw_bg_associate);
10672 INIT_WORK(&priv->disassociate, ipw_bg_disassociate);
10673 INIT_WORK(&priv->system_config, ipw_system_config);
10674 INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish);
10675 INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart);
10676 INIT_DELAYED_WORK(&priv->rf_kill, ipw_bg_rf_kill);
10677 INIT_WORK(&priv->up, ipw_bg_up);
10678 INIT_WORK(&priv->down, ipw_bg_down);
10679 INIT_DELAYED_WORK(&priv->request_scan, ipw_request_scan);
10680 INIT_DELAYED_WORK(&priv->request_direct_scan, ipw_request_direct_scan);
10681 INIT_DELAYED_WORK(&priv->request_passive_scan, ipw_request_passive_scan);
10682 INIT_DELAYED_WORK(&priv->scan_event, ipw_scan_event);
10683 INIT_DELAYED_WORK(&priv->gather_stats, ipw_bg_gather_stats);
10684 INIT_WORK(&priv->abort_scan, ipw_bg_abort_scan);
10685 INIT_WORK(&priv->roam, ipw_bg_roam);
10686 INIT_DELAYED_WORK(&priv->scan_check, ipw_bg_scan_check);
10687 INIT_WORK(&priv->link_up, ipw_bg_link_up);
10688 INIT_WORK(&priv->link_down, ipw_bg_link_down);
10689 INIT_DELAYED_WORK(&priv->led_link_on, ipw_bg_led_link_on);
10690 INIT_DELAYED_WORK(&priv->led_link_off, ipw_bg_led_link_off);
10691 INIT_DELAYED_WORK(&priv->led_act_off, ipw_bg_led_activity_off);
10692 INIT_WORK(&priv->merge_networks, ipw_merge_adhoc_network);
10693
10694 #ifdef CONFIG_IPW2200_QOS
10695 INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate);
10696 #endif /* CONFIG_IPW2200_QOS */
10697
10698 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
10699 ipw_irq_tasklet, (unsigned long)priv);
10700
10701 return ret;
10702 }
10703
10704 static void shim__set_security(struct net_device *dev,
10705 struct libipw_security *sec)
10706 {
10707 struct ipw_priv *priv = libipw_priv(dev);
10708 int i;
10709 for (i = 0; i < 4; i++) {
10710 if (sec->flags & (1 << i)) {
10711 priv->ieee->sec.encode_alg[i] = sec->encode_alg[i];
10712 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
10713 if (sec->key_sizes[i] == 0)
10714 priv->ieee->sec.flags &= ~(1 << i);
10715 else {
10716 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
10717 sec->key_sizes[i]);
10718 priv->ieee->sec.flags |= (1 << i);
10719 }
10720 priv->status |= STATUS_SECURITY_UPDATED;
10721 } else if (sec->level != SEC_LEVEL_1)
10722 priv->ieee->sec.flags &= ~(1 << i);
10723 }
10724
10725 if (sec->flags & SEC_ACTIVE_KEY) {
10726 if (sec->active_key <= 3) {
10727 priv->ieee->sec.active_key = sec->active_key;
10728 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
10729 } else
10730 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10731 priv->status |= STATUS_SECURITY_UPDATED;
10732 } else
10733 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10734
10735 if ((sec->flags & SEC_AUTH_MODE) &&
10736 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
10737 priv->ieee->sec.auth_mode = sec->auth_mode;
10738 priv->ieee->sec.flags |= SEC_AUTH_MODE;
10739 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
10740 priv->capability |= CAP_SHARED_KEY;
10741 else
10742 priv->capability &= ~CAP_SHARED_KEY;
10743 priv->status |= STATUS_SECURITY_UPDATED;
10744 }
10745
10746 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
10747 priv->ieee->sec.flags |= SEC_ENABLED;
10748 priv->ieee->sec.enabled = sec->enabled;
10749 priv->status |= STATUS_SECURITY_UPDATED;
10750 if (sec->enabled)
10751 priv->capability |= CAP_PRIVACY_ON;
10752 else
10753 priv->capability &= ~CAP_PRIVACY_ON;
10754 }
10755
10756 if (sec->flags & SEC_ENCRYPT)
10757 priv->ieee->sec.encrypt = sec->encrypt;
10758
10759 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
10760 priv->ieee->sec.level = sec->level;
10761 priv->ieee->sec.flags |= SEC_LEVEL;
10762 priv->status |= STATUS_SECURITY_UPDATED;
10763 }
10764
10765 if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT))
10766 ipw_set_hwcrypto_keys(priv);
10767
10768 /* To match current functionality of ipw2100 (which works well w/
10769 * various supplicants, we don't force a disassociate if the
10770 * privacy capability changes ... */
10771 #if 0
10772 if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
10773 (((priv->assoc_request.capability &
10774 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && !sec->enabled) ||
10775 (!(priv->assoc_request.capability &
10776 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && sec->enabled))) {
10777 IPW_DEBUG_ASSOC("Disassociating due to capability "
10778 "change.\n");
10779 ipw_disassociate(priv);
10780 }
10781 #endif
10782 }
10783
10784 static int init_supported_rates(struct ipw_priv *priv,
10785 struct ipw_supported_rates *rates)
10786 {
10787 /* TODO: Mask out rates based on priv->rates_mask */
10788
10789 memset(rates, 0, sizeof(*rates));
10790 /* configure supported rates */
10791 switch (priv->ieee->freq_band) {
10792 case LIBIPW_52GHZ_BAND:
10793 rates->ieee_mode = IPW_A_MODE;
10794 rates->purpose = IPW_RATE_CAPABILITIES;
10795 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION,
10796 LIBIPW_OFDM_DEFAULT_RATES_MASK);
10797 break;
10798
10799 default: /* Mixed or 2.4Ghz */
10800 rates->ieee_mode = IPW_G_MODE;
10801 rates->purpose = IPW_RATE_CAPABILITIES;
10802 ipw_add_cck_scan_rates(rates, LIBIPW_CCK_MODULATION,
10803 LIBIPW_CCK_DEFAULT_RATES_MASK);
10804 if (priv->ieee->modulation & LIBIPW_OFDM_MODULATION) {
10805 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION,
10806 LIBIPW_OFDM_DEFAULT_RATES_MASK);
10807 }
10808 break;
10809 }
10810
10811 return 0;
10812 }
10813
10814 static int ipw_config(struct ipw_priv *priv)
10815 {
10816 /* This is only called from ipw_up, which resets/reloads the firmware
10817 so, we don't need to first disable the card before we configure
10818 it */
10819 if (ipw_set_tx_power(priv))
10820 goto error;
10821
10822 /* initialize adapter address */
10823 if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
10824 goto error;
10825
10826 /* set basic system config settings */
10827 init_sys_config(&priv->sys_config);
10828
10829 /* Support Bluetooth if we have BT h/w on board, and user wants to.
10830 * Does not support BT priority yet (don't abort or defer our Tx) */
10831 if (bt_coexist) {
10832 unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY];
10833
10834 if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG)
10835 priv->sys_config.bt_coexistence
10836 |= CFG_BT_COEXISTENCE_SIGNAL_CHNL;
10837 if (bt_caps & EEPROM_SKU_CAP_BT_OOB)
10838 priv->sys_config.bt_coexistence
10839 |= CFG_BT_COEXISTENCE_OOB;
10840 }
10841
10842 #ifdef CONFIG_IPW2200_PROMISCUOUS
10843 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
10844 priv->sys_config.accept_all_data_frames = 1;
10845 priv->sys_config.accept_non_directed_frames = 1;
10846 priv->sys_config.accept_all_mgmt_bcpr = 1;
10847 priv->sys_config.accept_all_mgmt_frames = 1;
10848 }
10849 #endif
10850
10851 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
10852 priv->sys_config.answer_broadcast_ssid_probe = 1;
10853 else
10854 priv->sys_config.answer_broadcast_ssid_probe = 0;
10855
10856 if (ipw_send_system_config(priv))
10857 goto error;
10858
10859 init_supported_rates(priv, &priv->rates);
10860 if (ipw_send_supported_rates(priv, &priv->rates))
10861 goto error;
10862
10863 /* Set request-to-send threshold */
10864 if (priv->rts_threshold) {
10865 if (ipw_send_rts_threshold(priv, priv->rts_threshold))
10866 goto error;
10867 }
10868 #ifdef CONFIG_IPW2200_QOS
10869 IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n");
10870 ipw_qos_activate(priv, NULL);
10871 #endif /* CONFIG_IPW2200_QOS */
10872
10873 if (ipw_set_random_seed(priv))
10874 goto error;
10875
10876 /* final state transition to the RUN state */
10877 if (ipw_send_host_complete(priv))
10878 goto error;
10879
10880 priv->status |= STATUS_INIT;
10881
10882 ipw_led_init(priv);
10883 ipw_led_radio_on(priv);
10884 priv->notif_missed_beacons = 0;
10885
10886 /* Set hardware WEP key if it is configured. */
10887 if ((priv->capability & CAP_PRIVACY_ON) &&
10888 (priv->ieee->sec.level == SEC_LEVEL_1) &&
10889 !(priv->ieee->host_encrypt || priv->ieee->host_decrypt))
10890 ipw_set_hwcrypto_keys(priv);
10891
10892 return 0;
10893
10894 error:
10895 return -EIO;
10896 }
10897
10898 /*
10899 * NOTE:
10900 *
10901 * These tables have been tested in conjunction with the
10902 * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters.
10903 *
10904 * Altering this values, using it on other hardware, or in geographies
10905 * not intended for resale of the above mentioned Intel adapters has
10906 * not been tested.
10907 *
10908 * Remember to update the table in README.ipw2200 when changing this
10909 * table.
10910 *
10911 */
10912 static const struct libipw_geo ipw_geos[] = {
10913 { /* Restricted */
10914 "---",
10915 .bg_channels = 11,
10916 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10917 {2427, 4}, {2432, 5}, {2437, 6},
10918 {2442, 7}, {2447, 8}, {2452, 9},
10919 {2457, 10}, {2462, 11}},
10920 },
10921
10922 { /* Custom US/Canada */
10923 "ZZF",
10924 .bg_channels = 11,
10925 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10926 {2427, 4}, {2432, 5}, {2437, 6},
10927 {2442, 7}, {2447, 8}, {2452, 9},
10928 {2457, 10}, {2462, 11}},
10929 .a_channels = 8,
10930 .a = {{5180, 36},
10931 {5200, 40},
10932 {5220, 44},
10933 {5240, 48},
10934 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
10935 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
10936 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
10937 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}},
10938 },
10939
10940 { /* Rest of World */
10941 "ZZD",
10942 .bg_channels = 13,
10943 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10944 {2427, 4}, {2432, 5}, {2437, 6},
10945 {2442, 7}, {2447, 8}, {2452, 9},
10946 {2457, 10}, {2462, 11}, {2467, 12},
10947 {2472, 13}},
10948 },
10949
10950 { /* Custom USA & Europe & High */
10951 "ZZA",
10952 .bg_channels = 11,
10953 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10954 {2427, 4}, {2432, 5}, {2437, 6},
10955 {2442, 7}, {2447, 8}, {2452, 9},
10956 {2457, 10}, {2462, 11}},
10957 .a_channels = 13,
10958 .a = {{5180, 36},
10959 {5200, 40},
10960 {5220, 44},
10961 {5240, 48},
10962 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
10963 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
10964 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
10965 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
10966 {5745, 149},
10967 {5765, 153},
10968 {5785, 157},
10969 {5805, 161},
10970 {5825, 165}},
10971 },
10972
10973 { /* Custom NA & Europe */
10974 "ZZB",
10975 .bg_channels = 11,
10976 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10977 {2427, 4}, {2432, 5}, {2437, 6},
10978 {2442, 7}, {2447, 8}, {2452, 9},
10979 {2457, 10}, {2462, 11}},
10980 .a_channels = 13,
10981 .a = {{5180, 36},
10982 {5200, 40},
10983 {5220, 44},
10984 {5240, 48},
10985 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
10986 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
10987 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
10988 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
10989 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
10990 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
10991 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
10992 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
10993 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
10994 },
10995
10996 { /* Custom Japan */
10997 "ZZC",
10998 .bg_channels = 11,
10999 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11000 {2427, 4}, {2432, 5}, {2437, 6},
11001 {2442, 7}, {2447, 8}, {2452, 9},
11002 {2457, 10}, {2462, 11}},
11003 .a_channels = 4,
11004 .a = {{5170, 34}, {5190, 38},
11005 {5210, 42}, {5230, 46}},
11006 },
11007
11008 { /* Custom */
11009 "ZZM",
11010 .bg_channels = 11,
11011 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11012 {2427, 4}, {2432, 5}, {2437, 6},
11013 {2442, 7}, {2447, 8}, {2452, 9},
11014 {2457, 10}, {2462, 11}},
11015 },
11016
11017 { /* Europe */
11018 "ZZE",
11019 .bg_channels = 13,
11020 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11021 {2427, 4}, {2432, 5}, {2437, 6},
11022 {2442, 7}, {2447, 8}, {2452, 9},
11023 {2457, 10}, {2462, 11}, {2467, 12},
11024 {2472, 13}},
11025 .a_channels = 19,
11026 .a = {{5180, 36},
11027 {5200, 40},
11028 {5220, 44},
11029 {5240, 48},
11030 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11031 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11032 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11033 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11034 {5500, 100, LIBIPW_CH_PASSIVE_ONLY},
11035 {5520, 104, LIBIPW_CH_PASSIVE_ONLY},
11036 {5540, 108, LIBIPW_CH_PASSIVE_ONLY},
11037 {5560, 112, LIBIPW_CH_PASSIVE_ONLY},
11038 {5580, 116, LIBIPW_CH_PASSIVE_ONLY},
11039 {5600, 120, LIBIPW_CH_PASSIVE_ONLY},
11040 {5620, 124, LIBIPW_CH_PASSIVE_ONLY},
11041 {5640, 128, LIBIPW_CH_PASSIVE_ONLY},
11042 {5660, 132, LIBIPW_CH_PASSIVE_ONLY},
11043 {5680, 136, LIBIPW_CH_PASSIVE_ONLY},
11044 {5700, 140, LIBIPW_CH_PASSIVE_ONLY}},
11045 },
11046
11047 { /* Custom Japan */
11048 "ZZJ",
11049 .bg_channels = 14,
11050 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11051 {2427, 4}, {2432, 5}, {2437, 6},
11052 {2442, 7}, {2447, 8}, {2452, 9},
11053 {2457, 10}, {2462, 11}, {2467, 12},
11054 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY}},
11055 .a_channels = 4,
11056 .a = {{5170, 34}, {5190, 38},
11057 {5210, 42}, {5230, 46}},
11058 },
11059
11060 { /* Rest of World */
11061 "ZZR",
11062 .bg_channels = 14,
11063 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11064 {2427, 4}, {2432, 5}, {2437, 6},
11065 {2442, 7}, {2447, 8}, {2452, 9},
11066 {2457, 10}, {2462, 11}, {2467, 12},
11067 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY |
11068 LIBIPW_CH_PASSIVE_ONLY}},
11069 },
11070
11071 { /* High Band */
11072 "ZZH",
11073 .bg_channels = 13,
11074 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11075 {2427, 4}, {2432, 5}, {2437, 6},
11076 {2442, 7}, {2447, 8}, {2452, 9},
11077 {2457, 10}, {2462, 11},
11078 {2467, 12, LIBIPW_CH_PASSIVE_ONLY},
11079 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}},
11080 .a_channels = 4,
11081 .a = {{5745, 149}, {5765, 153},
11082 {5785, 157}, {5805, 161}},
11083 },
11084
11085 { /* Custom Europe */
11086 "ZZG",
11087 .bg_channels = 13,
11088 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11089 {2427, 4}, {2432, 5}, {2437, 6},
11090 {2442, 7}, {2447, 8}, {2452, 9},
11091 {2457, 10}, {2462, 11},
11092 {2467, 12}, {2472, 13}},
11093 .a_channels = 4,
11094 .a = {{5180, 36}, {5200, 40},
11095 {5220, 44}, {5240, 48}},
11096 },
11097
11098 { /* Europe */
11099 "ZZK",
11100 .bg_channels = 13,
11101 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11102 {2427, 4}, {2432, 5}, {2437, 6},
11103 {2442, 7}, {2447, 8}, {2452, 9},
11104 {2457, 10}, {2462, 11},
11105 {2467, 12, LIBIPW_CH_PASSIVE_ONLY},
11106 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}},
11107 .a_channels = 24,
11108 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY},
11109 {5200, 40, LIBIPW_CH_PASSIVE_ONLY},
11110 {5220, 44, LIBIPW_CH_PASSIVE_ONLY},
11111 {5240, 48, LIBIPW_CH_PASSIVE_ONLY},
11112 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11113 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11114 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11115 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11116 {5500, 100, LIBIPW_CH_PASSIVE_ONLY},
11117 {5520, 104, LIBIPW_CH_PASSIVE_ONLY},
11118 {5540, 108, LIBIPW_CH_PASSIVE_ONLY},
11119 {5560, 112, LIBIPW_CH_PASSIVE_ONLY},
11120 {5580, 116, LIBIPW_CH_PASSIVE_ONLY},
11121 {5600, 120, LIBIPW_CH_PASSIVE_ONLY},
11122 {5620, 124, LIBIPW_CH_PASSIVE_ONLY},
11123 {5640, 128, LIBIPW_CH_PASSIVE_ONLY},
11124 {5660, 132, LIBIPW_CH_PASSIVE_ONLY},
11125 {5680, 136, LIBIPW_CH_PASSIVE_ONLY},
11126 {5700, 140, LIBIPW_CH_PASSIVE_ONLY},
11127 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11128 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11129 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11130 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11131 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11132 },
11133
11134 { /* Europe */
11135 "ZZL",
11136 .bg_channels = 11,
11137 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11138 {2427, 4}, {2432, 5}, {2437, 6},
11139 {2442, 7}, {2447, 8}, {2452, 9},
11140 {2457, 10}, {2462, 11}},
11141 .a_channels = 13,
11142 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY},
11143 {5200, 40, LIBIPW_CH_PASSIVE_ONLY},
11144 {5220, 44, LIBIPW_CH_PASSIVE_ONLY},
11145 {5240, 48, LIBIPW_CH_PASSIVE_ONLY},
11146 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11147 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11148 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11149 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11150 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11151 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11152 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11153 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11154 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11155 }
11156 };
11157
11158 static void ipw_set_geo(struct ipw_priv *priv)
11159 {
11160 int j;
11161
11162 for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) {
11163 if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE],
11164 ipw_geos[j].name, 3))
11165 break;
11166 }
11167
11168 if (j == ARRAY_SIZE(ipw_geos)) {
11169 IPW_WARNING("SKU [%c%c%c] not recognized.\n",
11170 priv->eeprom[EEPROM_COUNTRY_CODE + 0],
11171 priv->eeprom[EEPROM_COUNTRY_CODE + 1],
11172 priv->eeprom[EEPROM_COUNTRY_CODE + 2]);
11173 j = 0;
11174 }
11175
11176 libipw_set_geo(priv->ieee, &ipw_geos[j]);
11177 }
11178
11179 #define MAX_HW_RESTARTS 5
11180 static int ipw_up(struct ipw_priv *priv)
11181 {
11182 int rc, i;
11183
11184 /* Age scan list entries found before suspend */
11185 if (priv->suspend_time) {
11186 libipw_networks_age(priv->ieee, priv->suspend_time);
11187 priv->suspend_time = 0;
11188 }
11189
11190 if (priv->status & STATUS_EXIT_PENDING)
11191 return -EIO;
11192
11193 if (cmdlog && !priv->cmdlog) {
11194 priv->cmdlog = kcalloc(cmdlog, sizeof(*priv->cmdlog),
11195 GFP_KERNEL);
11196 if (priv->cmdlog == NULL) {
11197 IPW_ERROR("Error allocating %d command log entries.\n",
11198 cmdlog);
11199 return -ENOMEM;
11200 } else {
11201 priv->cmdlog_len = cmdlog;
11202 }
11203 }
11204
11205 for (i = 0; i < MAX_HW_RESTARTS; i++) {
11206 /* Load the microcode, firmware, and eeprom.
11207 * Also start the clocks. */
11208 rc = ipw_load(priv);
11209 if (rc) {
11210 IPW_ERROR("Unable to load firmware: %d\n", rc);
11211 return rc;
11212 }
11213
11214 ipw_init_ordinals(priv);
11215 if (!(priv->config & CFG_CUSTOM_MAC))
11216 eeprom_parse_mac(priv, priv->mac_addr);
11217 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11218
11219 ipw_set_geo(priv);
11220
11221 if (priv->status & STATUS_RF_KILL_SW) {
11222 IPW_WARNING("Radio disabled by module parameter.\n");
11223 return 0;
11224 } else if (rf_kill_active(priv)) {
11225 IPW_WARNING("Radio Frequency Kill Switch is On:\n"
11226 "Kill switch must be turned off for "
11227 "wireless networking to work.\n");
11228 schedule_delayed_work(&priv->rf_kill, 2 * HZ);
11229 return 0;
11230 }
11231
11232 rc = ipw_config(priv);
11233 if (!rc) {
11234 IPW_DEBUG_INFO("Configured device on count %i\n", i);
11235
11236 /* If configure to try and auto-associate, kick
11237 * off a scan. */
11238 schedule_delayed_work(&priv->request_scan, 0);
11239
11240 return 0;
11241 }
11242
11243 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc);
11244 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
11245 i, MAX_HW_RESTARTS);
11246
11247 /* We had an error bringing up the hardware, so take it
11248 * all the way back down so we can try again */
11249 ipw_down(priv);
11250 }
11251
11252 /* tried to restart and config the device for as long as our
11253 * patience could withstand */
11254 IPW_ERROR("Unable to initialize device after %d attempts.\n", i);
11255
11256 return -EIO;
11257 }
11258
11259 static void ipw_bg_up(struct work_struct *work)
11260 {
11261 struct ipw_priv *priv =
11262 container_of(work, struct ipw_priv, up);
11263 mutex_lock(&priv->mutex);
11264 ipw_up(priv);
11265 mutex_unlock(&priv->mutex);
11266 }
11267
11268 static void ipw_deinit(struct ipw_priv *priv)
11269 {
11270 int i;
11271
11272 if (priv->status & STATUS_SCANNING) {
11273 IPW_DEBUG_INFO("Aborting scan during shutdown.\n");
11274 ipw_abort_scan(priv);
11275 }
11276
11277 if (priv->status & STATUS_ASSOCIATED) {
11278 IPW_DEBUG_INFO("Disassociating during shutdown.\n");
11279 ipw_disassociate(priv);
11280 }
11281
11282 ipw_led_shutdown(priv);
11283
11284 /* Wait up to 1s for status to change to not scanning and not
11285 * associated (disassociation can take a while for a ful 802.11
11286 * exchange */
11287 for (i = 1000; i && (priv->status &
11288 (STATUS_DISASSOCIATING |
11289 STATUS_ASSOCIATED | STATUS_SCANNING)); i--)
11290 udelay(10);
11291
11292 if (priv->status & (STATUS_DISASSOCIATING |
11293 STATUS_ASSOCIATED | STATUS_SCANNING))
11294 IPW_DEBUG_INFO("Still associated or scanning...\n");
11295 else
11296 IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i);
11297
11298 /* Attempt to disable the card */
11299 ipw_send_card_disable(priv, 0);
11300
11301 priv->status &= ~STATUS_INIT;
11302 }
11303
11304 static void ipw_down(struct ipw_priv *priv)
11305 {
11306 int exit_pending = priv->status & STATUS_EXIT_PENDING;
11307
11308 priv->status |= STATUS_EXIT_PENDING;
11309
11310 if (ipw_is_init(priv))
11311 ipw_deinit(priv);
11312
11313 /* Wipe out the EXIT_PENDING status bit if we are not actually
11314 * exiting the module */
11315 if (!exit_pending)
11316 priv->status &= ~STATUS_EXIT_PENDING;
11317
11318 /* tell the device to stop sending interrupts */
11319 ipw_disable_interrupts(priv);
11320
11321 /* Clear all bits but the RF Kill */
11322 priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING;
11323 netif_carrier_off(priv->net_dev);
11324
11325 ipw_stop_nic(priv);
11326
11327 ipw_led_radio_off(priv);
11328 }
11329
11330 static void ipw_bg_down(struct work_struct *work)
11331 {
11332 struct ipw_priv *priv =
11333 container_of(work, struct ipw_priv, down);
11334 mutex_lock(&priv->mutex);
11335 ipw_down(priv);
11336 mutex_unlock(&priv->mutex);
11337 }
11338
11339 static int ipw_wdev_init(struct net_device *dev)
11340 {
11341 int i, rc = 0;
11342 struct ipw_priv *priv = libipw_priv(dev);
11343 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
11344 struct wireless_dev *wdev = &priv->ieee->wdev;
11345
11346 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
11347
11348 /* fill-out priv->ieee->bg_band */
11349 if (geo->bg_channels) {
11350 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
11351
11352 bg_band->band = NL80211_BAND_2GHZ;
11353 bg_band->n_channels = geo->bg_channels;
11354 bg_band->channels = kcalloc(geo->bg_channels,
11355 sizeof(struct ieee80211_channel),
11356 GFP_KERNEL);
11357 if (!bg_band->channels) {
11358 rc = -ENOMEM;
11359 goto out;
11360 }
11361 /* translate geo->bg to bg_band.channels */
11362 for (i = 0; i < geo->bg_channels; i++) {
11363 bg_band->channels[i].band = NL80211_BAND_2GHZ;
11364 bg_band->channels[i].center_freq = geo->bg[i].freq;
11365 bg_band->channels[i].hw_value = geo->bg[i].channel;
11366 bg_band->channels[i].max_power = geo->bg[i].max_power;
11367 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
11368 bg_band->channels[i].flags |=
11369 IEEE80211_CHAN_NO_IR;
11370 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
11371 bg_band->channels[i].flags |=
11372 IEEE80211_CHAN_NO_IR;
11373 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
11374 bg_band->channels[i].flags |=
11375 IEEE80211_CHAN_RADAR;
11376 /* No equivalent for LIBIPW_CH_80211H_RULES,
11377 LIBIPW_CH_UNIFORM_SPREADING, or
11378 LIBIPW_CH_B_ONLY... */
11379 }
11380 /* point at bitrate info */
11381 bg_band->bitrates = ipw2200_bg_rates;
11382 bg_band->n_bitrates = ipw2200_num_bg_rates;
11383
11384 wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band;
11385 }
11386
11387 /* fill-out priv->ieee->a_band */
11388 if (geo->a_channels) {
11389 struct ieee80211_supported_band *a_band = &priv->ieee->a_band;
11390
11391 a_band->band = NL80211_BAND_5GHZ;
11392 a_band->n_channels = geo->a_channels;
11393 a_band->channels = kcalloc(geo->a_channels,
11394 sizeof(struct ieee80211_channel),
11395 GFP_KERNEL);
11396 if (!a_band->channels) {
11397 rc = -ENOMEM;
11398 goto out;
11399 }
11400 /* translate geo->a to a_band.channels */
11401 for (i = 0; i < geo->a_channels; i++) {
11402 a_band->channels[i].band = NL80211_BAND_5GHZ;
11403 a_band->channels[i].center_freq = geo->a[i].freq;
11404 a_band->channels[i].hw_value = geo->a[i].channel;
11405 a_band->channels[i].max_power = geo->a[i].max_power;
11406 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY)
11407 a_band->channels[i].flags |=
11408 IEEE80211_CHAN_NO_IR;
11409 if (geo->a[i].flags & LIBIPW_CH_NO_IBSS)
11410 a_band->channels[i].flags |=
11411 IEEE80211_CHAN_NO_IR;
11412 if (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT)
11413 a_band->channels[i].flags |=
11414 IEEE80211_CHAN_RADAR;
11415 /* No equivalent for LIBIPW_CH_80211H_RULES,
11416 LIBIPW_CH_UNIFORM_SPREADING, or
11417 LIBIPW_CH_B_ONLY... */
11418 }
11419 /* point at bitrate info */
11420 a_band->bitrates = ipw2200_a_rates;
11421 a_band->n_bitrates = ipw2200_num_a_rates;
11422
11423 wdev->wiphy->bands[NL80211_BAND_5GHZ] = a_band;
11424 }
11425
11426 wdev->wiphy->cipher_suites = ipw_cipher_suites;
11427 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
11428
11429 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
11430
11431 /* With that information in place, we can now register the wiphy... */
11432 if (wiphy_register(wdev->wiphy))
11433 rc = -EIO;
11434 out:
11435 return rc;
11436 }
11437
11438 /* PCI driver stuff */
11439 static const struct pci_device_id card_ids[] = {
11440 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
11441 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
11442 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
11443 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
11444 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
11445 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
11446 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
11447 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
11448 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
11449 {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
11450 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
11451 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
11452 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
11453 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
11454 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
11455 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
11456 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
11457 {PCI_VDEVICE(INTEL, 0x104f), 0},
11458 {PCI_VDEVICE(INTEL, 0x4220), 0}, /* BG */
11459 {PCI_VDEVICE(INTEL, 0x4221), 0}, /* BG */
11460 {PCI_VDEVICE(INTEL, 0x4223), 0}, /* ABG */
11461 {PCI_VDEVICE(INTEL, 0x4224), 0}, /* ABG */
11462
11463 /* required last entry */
11464 {0,}
11465 };
11466
11467 MODULE_DEVICE_TABLE(pci, card_ids);
11468
11469 static struct attribute *ipw_sysfs_entries[] = {
11470 &dev_attr_rf_kill.attr,
11471 &dev_attr_direct_dword.attr,
11472 &dev_attr_indirect_byte.attr,
11473 &dev_attr_indirect_dword.attr,
11474 &dev_attr_mem_gpio_reg.attr,
11475 &dev_attr_command_event_reg.attr,
11476 &dev_attr_nic_type.attr,
11477 &dev_attr_status.attr,
11478 &dev_attr_cfg.attr,
11479 &dev_attr_error.attr,
11480 &dev_attr_event_log.attr,
11481 &dev_attr_cmd_log.attr,
11482 &dev_attr_eeprom_delay.attr,
11483 &dev_attr_ucode_version.attr,
11484 &dev_attr_rtc.attr,
11485 &dev_attr_scan_age.attr,
11486 &dev_attr_led.attr,
11487 &dev_attr_speed_scan.attr,
11488 &dev_attr_net_stats.attr,
11489 &dev_attr_channels.attr,
11490 #ifdef CONFIG_IPW2200_PROMISCUOUS
11491 &dev_attr_rtap_iface.attr,
11492 &dev_attr_rtap_filter.attr,
11493 #endif
11494 NULL
11495 };
11496
11497 static const struct attribute_group ipw_attribute_group = {
11498 .name = NULL, /* put in device directory */
11499 .attrs = ipw_sysfs_entries,
11500 };
11501
11502 #ifdef CONFIG_IPW2200_PROMISCUOUS
11503 static int ipw_prom_open(struct net_device *dev)
11504 {
11505 struct ipw_prom_priv *prom_priv = libipw_priv(dev);
11506 struct ipw_priv *priv = prom_priv->priv;
11507
11508 IPW_DEBUG_INFO("prom dev->open\n");
11509 netif_carrier_off(dev);
11510
11511 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11512 priv->sys_config.accept_all_data_frames = 1;
11513 priv->sys_config.accept_non_directed_frames = 1;
11514 priv->sys_config.accept_all_mgmt_bcpr = 1;
11515 priv->sys_config.accept_all_mgmt_frames = 1;
11516
11517 ipw_send_system_config(priv);
11518 }
11519
11520 return 0;
11521 }
11522
11523 static int ipw_prom_stop(struct net_device *dev)
11524 {
11525 struct ipw_prom_priv *prom_priv = libipw_priv(dev);
11526 struct ipw_priv *priv = prom_priv->priv;
11527
11528 IPW_DEBUG_INFO("prom dev->stop\n");
11529
11530 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11531 priv->sys_config.accept_all_data_frames = 0;
11532 priv->sys_config.accept_non_directed_frames = 0;
11533 priv->sys_config.accept_all_mgmt_bcpr = 0;
11534 priv->sys_config.accept_all_mgmt_frames = 0;
11535
11536 ipw_send_system_config(priv);
11537 }
11538
11539 return 0;
11540 }
11541
11542 static netdev_tx_t ipw_prom_hard_start_xmit(struct sk_buff *skb,
11543 struct net_device *dev)
11544 {
11545 IPW_DEBUG_INFO("prom dev->xmit\n");
11546 dev_kfree_skb(skb);
11547 return NETDEV_TX_OK;
11548 }
11549
11550 static const struct net_device_ops ipw_prom_netdev_ops = {
11551 .ndo_open = ipw_prom_open,
11552 .ndo_stop = ipw_prom_stop,
11553 .ndo_start_xmit = ipw_prom_hard_start_xmit,
11554 .ndo_set_mac_address = eth_mac_addr,
11555 .ndo_validate_addr = eth_validate_addr,
11556 };
11557
11558 static int ipw_prom_alloc(struct ipw_priv *priv)
11559 {
11560 int rc = 0;
11561
11562 if (priv->prom_net_dev)
11563 return -EPERM;
11564
11565 priv->prom_net_dev = alloc_libipw(sizeof(struct ipw_prom_priv), 1);
11566 if (priv->prom_net_dev == NULL)
11567 return -ENOMEM;
11568
11569 priv->prom_priv = libipw_priv(priv->prom_net_dev);
11570 priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev);
11571 priv->prom_priv->priv = priv;
11572
11573 strcpy(priv->prom_net_dev->name, "rtap%d");
11574 memcpy(priv->prom_net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11575
11576 priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
11577 priv->prom_net_dev->netdev_ops = &ipw_prom_netdev_ops;
11578
11579 priv->prom_net_dev->min_mtu = 68;
11580 priv->prom_net_dev->max_mtu = LIBIPW_DATA_LEN;
11581
11582 priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR;
11583 SET_NETDEV_DEV(priv->prom_net_dev, &priv->pci_dev->dev);
11584
11585 rc = register_netdev(priv->prom_net_dev);
11586 if (rc) {
11587 free_libipw(priv->prom_net_dev, 1);
11588 priv->prom_net_dev = NULL;
11589 return rc;
11590 }
11591
11592 return 0;
11593 }
11594
11595 static void ipw_prom_free(struct ipw_priv *priv)
11596 {
11597 if (!priv->prom_net_dev)
11598 return;
11599
11600 unregister_netdev(priv->prom_net_dev);
11601 free_libipw(priv->prom_net_dev, 1);
11602
11603 priv->prom_net_dev = NULL;
11604 }
11605
11606 #endif
11607
11608 static const struct net_device_ops ipw_netdev_ops = {
11609 .ndo_open = ipw_net_open,
11610 .ndo_stop = ipw_net_stop,
11611 .ndo_set_rx_mode = ipw_net_set_multicast_list,
11612 .ndo_set_mac_address = ipw_net_set_mac_address,
11613 .ndo_start_xmit = libipw_xmit,
11614 .ndo_validate_addr = eth_validate_addr,
11615 };
11616
11617 static int ipw_pci_probe(struct pci_dev *pdev,
11618 const struct pci_device_id *ent)
11619 {
11620 int err = 0;
11621 struct net_device *net_dev;
11622 void __iomem *base;
11623 u32 length, val;
11624 struct ipw_priv *priv;
11625 int i;
11626
11627 net_dev = alloc_libipw(sizeof(struct ipw_priv), 0);
11628 if (net_dev == NULL) {
11629 err = -ENOMEM;
11630 goto out;
11631 }
11632
11633 priv = libipw_priv(net_dev);
11634 priv->ieee = netdev_priv(net_dev);
11635
11636 priv->net_dev = net_dev;
11637 priv->pci_dev = pdev;
11638 ipw_debug_level = debug;
11639 spin_lock_init(&priv->irq_lock);
11640 spin_lock_init(&priv->lock);
11641 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++)
11642 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
11643
11644 mutex_init(&priv->mutex);
11645 if (pci_enable_device(pdev)) {
11646 err = -ENODEV;
11647 goto out_free_libipw;
11648 }
11649
11650 pci_set_master(pdev);
11651
11652 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
11653 if (!err)
11654 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
11655 if (err) {
11656 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
11657 goto out_pci_disable_device;
11658 }
11659
11660 pci_set_drvdata(pdev, priv);
11661
11662 err = pci_request_regions(pdev, DRV_NAME);
11663 if (err)
11664 goto out_pci_disable_device;
11665
11666 /* We disable the RETRY_TIMEOUT register (0x41) to keep
11667 * PCI Tx retries from interfering with C3 CPU state */
11668 pci_read_config_dword(pdev, 0x40, &val);
11669 if ((val & 0x0000ff00) != 0)
11670 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11671
11672 length = pci_resource_len(pdev, 0);
11673 priv->hw_len = length;
11674
11675 base = pci_ioremap_bar(pdev, 0);
11676 if (!base) {
11677 err = -ENODEV;
11678 goto out_pci_release_regions;
11679 }
11680
11681 priv->hw_base = base;
11682 IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
11683 IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
11684
11685 err = ipw_setup_deferred_work(priv);
11686 if (err) {
11687 IPW_ERROR("Unable to setup deferred work\n");
11688 goto out_iounmap;
11689 }
11690
11691 ipw_sw_reset(priv, 1);
11692
11693 err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv);
11694 if (err) {
11695 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
11696 goto out_iounmap;
11697 }
11698
11699 SET_NETDEV_DEV(net_dev, &pdev->dev);
11700
11701 mutex_lock(&priv->mutex);
11702
11703 priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
11704 priv->ieee->set_security = shim__set_security;
11705 priv->ieee->is_queue_full = ipw_net_is_queue_full;
11706
11707 #ifdef CONFIG_IPW2200_QOS
11708 priv->ieee->is_qos_active = ipw_is_qos_active;
11709 priv->ieee->handle_probe_response = ipw_handle_beacon;
11710 priv->ieee->handle_beacon = ipw_handle_probe_response;
11711 priv->ieee->handle_assoc_response = ipw_handle_assoc_response;
11712 #endif /* CONFIG_IPW2200_QOS */
11713
11714 priv->ieee->perfect_rssi = -20;
11715 priv->ieee->worst_rssi = -85;
11716
11717 net_dev->netdev_ops = &ipw_netdev_ops;
11718 priv->wireless_data.spy_data = &priv->ieee->spy_data;
11719 net_dev->wireless_data = &priv->wireless_data;
11720 net_dev->wireless_handlers = &ipw_wx_handler_def;
11721 net_dev->ethtool_ops = &ipw_ethtool_ops;
11722
11723 net_dev->min_mtu = 68;
11724 net_dev->max_mtu = LIBIPW_DATA_LEN;
11725
11726 err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
11727 if (err) {
11728 IPW_ERROR("failed to create sysfs device attributes\n");
11729 mutex_unlock(&priv->mutex);
11730 goto out_release_irq;
11731 }
11732
11733 if (ipw_up(priv)) {
11734 mutex_unlock(&priv->mutex);
11735 err = -EIO;
11736 goto out_remove_sysfs;
11737 }
11738
11739 mutex_unlock(&priv->mutex);
11740
11741 err = ipw_wdev_init(net_dev);
11742 if (err) {
11743 IPW_ERROR("failed to register wireless device\n");
11744 goto out_remove_sysfs;
11745 }
11746
11747 err = register_netdev(net_dev);
11748 if (err) {
11749 IPW_ERROR("failed to register network device\n");
11750 goto out_unregister_wiphy;
11751 }
11752
11753 #ifdef CONFIG_IPW2200_PROMISCUOUS
11754 if (rtap_iface) {
11755 err = ipw_prom_alloc(priv);
11756 if (err) {
11757 IPW_ERROR("Failed to register promiscuous network "
11758 "device (error %d).\n", err);
11759 unregister_netdev(priv->net_dev);
11760 goto out_unregister_wiphy;
11761 }
11762 }
11763 #endif
11764
11765 printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg "
11766 "channels, %d 802.11a channels)\n",
11767 priv->ieee->geo.name, priv->ieee->geo.bg_channels,
11768 priv->ieee->geo.a_channels);
11769
11770 return 0;
11771
11772 out_unregister_wiphy:
11773 wiphy_unregister(priv->ieee->wdev.wiphy);
11774 kfree(priv->ieee->a_band.channels);
11775 kfree(priv->ieee->bg_band.channels);
11776 out_remove_sysfs:
11777 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11778 out_release_irq:
11779 free_irq(pdev->irq, priv);
11780 out_iounmap:
11781 iounmap(priv->hw_base);
11782 out_pci_release_regions:
11783 pci_release_regions(pdev);
11784 out_pci_disable_device:
11785 pci_disable_device(pdev);
11786 out_free_libipw:
11787 free_libipw(priv->net_dev, 0);
11788 out:
11789 return err;
11790 }
11791
11792 static void ipw_pci_remove(struct pci_dev *pdev)
11793 {
11794 struct ipw_priv *priv = pci_get_drvdata(pdev);
11795 struct list_head *p, *q;
11796 int i;
11797
11798 if (!priv)
11799 return;
11800
11801 mutex_lock(&priv->mutex);
11802
11803 priv->status |= STATUS_EXIT_PENDING;
11804 ipw_down(priv);
11805 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11806
11807 mutex_unlock(&priv->mutex);
11808
11809 unregister_netdev(priv->net_dev);
11810
11811 if (priv->rxq) {
11812 ipw_rx_queue_free(priv, priv->rxq);
11813 priv->rxq = NULL;
11814 }
11815 ipw_tx_queue_free(priv);
11816
11817 if (priv->cmdlog) {
11818 kfree(priv->cmdlog);
11819 priv->cmdlog = NULL;
11820 }
11821
11822 /* make sure all works are inactive */
11823 cancel_delayed_work_sync(&priv->adhoc_check);
11824 cancel_work_sync(&priv->associate);
11825 cancel_work_sync(&priv->disassociate);
11826 cancel_work_sync(&priv->system_config);
11827 cancel_work_sync(&priv->rx_replenish);
11828 cancel_work_sync(&priv->adapter_restart);
11829 cancel_delayed_work_sync(&priv->rf_kill);
11830 cancel_work_sync(&priv->up);
11831 cancel_work_sync(&priv->down);
11832 cancel_delayed_work_sync(&priv->request_scan);
11833 cancel_delayed_work_sync(&priv->request_direct_scan);
11834 cancel_delayed_work_sync(&priv->request_passive_scan);
11835 cancel_delayed_work_sync(&priv->scan_event);
11836 cancel_delayed_work_sync(&priv->gather_stats);
11837 cancel_work_sync(&priv->abort_scan);
11838 cancel_work_sync(&priv->roam);
11839 cancel_delayed_work_sync(&priv->scan_check);
11840 cancel_work_sync(&priv->link_up);
11841 cancel_work_sync(&priv->link_down);
11842 cancel_delayed_work_sync(&priv->led_link_on);
11843 cancel_delayed_work_sync(&priv->led_link_off);
11844 cancel_delayed_work_sync(&priv->led_act_off);
11845 cancel_work_sync(&priv->merge_networks);
11846
11847 /* Free MAC hash list for ADHOC */
11848 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) {
11849 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
11850 list_del(p);
11851 kfree(list_entry(p, struct ipw_ibss_seq, list));
11852 }
11853 }
11854
11855 kfree(priv->error);
11856 priv->error = NULL;
11857
11858 #ifdef CONFIG_IPW2200_PROMISCUOUS
11859 ipw_prom_free(priv);
11860 #endif
11861
11862 free_irq(pdev->irq, priv);
11863 iounmap(priv->hw_base);
11864 pci_release_regions(pdev);
11865 pci_disable_device(pdev);
11866 /* wiphy_unregister needs to be here, before free_libipw */
11867 wiphy_unregister(priv->ieee->wdev.wiphy);
11868 kfree(priv->ieee->a_band.channels);
11869 kfree(priv->ieee->bg_band.channels);
11870 free_libipw(priv->net_dev, 0);
11871 free_firmware();
11872 }
11873
11874 #ifdef CONFIG_PM
11875 static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
11876 {
11877 struct ipw_priv *priv = pci_get_drvdata(pdev);
11878 struct net_device *dev = priv->net_dev;
11879
11880 printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
11881
11882 /* Take down the device; powers it off, etc. */
11883 ipw_down(priv);
11884
11885 /* Remove the PRESENT state of the device */
11886 netif_device_detach(dev);
11887
11888 pci_save_state(pdev);
11889 pci_disable_device(pdev);
11890 pci_set_power_state(pdev, pci_choose_state(pdev, state));
11891
11892 priv->suspend_at = get_seconds();
11893
11894 return 0;
11895 }
11896
11897 static int ipw_pci_resume(struct pci_dev *pdev)
11898 {
11899 struct ipw_priv *priv = pci_get_drvdata(pdev);
11900 struct net_device *dev = priv->net_dev;
11901 int err;
11902 u32 val;
11903
11904 printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
11905
11906 pci_set_power_state(pdev, PCI_D0);
11907 err = pci_enable_device(pdev);
11908 if (err) {
11909 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
11910 dev->name);
11911 return err;
11912 }
11913 pci_restore_state(pdev);
11914
11915 /*
11916 * Suspend/Resume resets the PCI configuration space, so we have to
11917 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
11918 * from interfering with C3 CPU state. pci_restore_state won't help
11919 * here since it only restores the first 64 bytes pci config header.
11920 */
11921 pci_read_config_dword(pdev, 0x40, &val);
11922 if ((val & 0x0000ff00) != 0)
11923 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11924
11925 /* Set the device back into the PRESENT state; this will also wake
11926 * the queue of needed */
11927 netif_device_attach(dev);
11928
11929 priv->suspend_time = get_seconds() - priv->suspend_at;
11930
11931 /* Bring the device back up */
11932 schedule_work(&priv->up);
11933
11934 return 0;
11935 }
11936 #endif
11937
11938 static void ipw_pci_shutdown(struct pci_dev *pdev)
11939 {
11940 struct ipw_priv *priv = pci_get_drvdata(pdev);
11941
11942 /* Take down the device; powers it off, etc. */
11943 ipw_down(priv);
11944
11945 pci_disable_device(pdev);
11946 }
11947
11948 /* driver initialization stuff */
11949 static struct pci_driver ipw_driver = {
11950 .name = DRV_NAME,
11951 .id_table = card_ids,
11952 .probe = ipw_pci_probe,
11953 .remove = ipw_pci_remove,
11954 #ifdef CONFIG_PM
11955 .suspend = ipw_pci_suspend,
11956 .resume = ipw_pci_resume,
11957 #endif
11958 .shutdown = ipw_pci_shutdown,
11959 };
11960
11961 static int __init ipw_init(void)
11962 {
11963 int ret;
11964
11965 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
11966 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
11967
11968 ret = pci_register_driver(&ipw_driver);
11969 if (ret) {
11970 IPW_ERROR("Unable to initialize PCI module\n");
11971 return ret;
11972 }
11973
11974 ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level);
11975 if (ret) {
11976 IPW_ERROR("Unable to create driver sysfs file\n");
11977 pci_unregister_driver(&ipw_driver);
11978 return ret;
11979 }
11980
11981 return ret;
11982 }
11983
11984 static void __exit ipw_exit(void)
11985 {
11986 driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
11987 pci_unregister_driver(&ipw_driver);
11988 }
11989
11990 module_param(disable, int, 0444);
11991 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
11992
11993 module_param(associate, int, 0444);
11994 MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
11995
11996 module_param(auto_create, int, 0444);
11997 MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
11998
11999 module_param_named(led, led_support, int, 0444);
12000 MODULE_PARM_DESC(led, "enable led control on some systems (default 1 on)");
12001
12002 module_param(debug, int, 0444);
12003 MODULE_PARM_DESC(debug, "debug output mask");
12004
12005 module_param_named(channel, default_channel, int, 0444);
12006 MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
12007
12008 #ifdef CONFIG_IPW2200_PROMISCUOUS
12009 module_param(rtap_iface, int, 0444);
12010 MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)");
12011 #endif
12012
12013 #ifdef CONFIG_IPW2200_QOS
12014 module_param(qos_enable, int, 0444);
12015 MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis");
12016
12017 module_param(qos_burst_enable, int, 0444);
12018 MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode");
12019
12020 module_param(qos_no_ack_mask, int, 0444);
12021 MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack");
12022
12023 module_param(burst_duration_CCK, int, 0444);
12024 MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value");
12025
12026 module_param(burst_duration_OFDM, int, 0444);
12027 MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value");
12028 #endif /* CONFIG_IPW2200_QOS */
12029
12030 #ifdef CONFIG_IPW2200_MONITOR
12031 module_param_named(mode, network_mode, int, 0444);
12032 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
12033 #else
12034 module_param_named(mode, network_mode, int, 0444);
12035 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
12036 #endif
12037
12038 module_param(bt_coexist, int, 0444);
12039 MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)");
12040
12041 module_param(hwcrypto, int, 0444);
12042 MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)");
12043
12044 module_param(cmdlog, int, 0444);
12045 MODULE_PARM_DESC(cmdlog,
12046 "allocate a ring buffer for logging firmware commands");
12047
12048 module_param(roaming, int, 0444);
12049 MODULE_PARM_DESC(roaming, "enable roaming support (default on)");
12050
12051 module_param(antenna, int, 0444);
12052 MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)");
12053
12054 module_exit(ipw_exit);
12055 module_init(ipw_init);
Linux with added FPC-III support