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Linux 4.4.145
[linux/fpc-iii.git] / drivers / net / wireless / ipw2x00 / ipw2200.c
blobed0adaf1eec445defe056f8509adc6b54b708518
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 show_debug_level(struct device_driver *d, char *buf)
1199 {
1200 return sprintf(buf, "0x%08X\n", ipw_debug_level);
1201 }
1202
1203 static ssize_t store_debug_level(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
1225 static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
1226 show_debug_level, store_debug_level);
1227
1228 static inline u32 ipw_get_event_log_len(struct ipw_priv *priv)
1229 {
1230 /* length = 1st dword in log */
1231 return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG));
1232 }
1233
1234 static void ipw_capture_event_log(struct ipw_priv *priv,
1235 u32 log_len, struct ipw_event *log)
1236 {
1237 u32 base;
1238
1239 if (log_len) {
1240 base = ipw_read32(priv, IPW_EVENT_LOG);
1241 ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32),
1242 (u8 *) log, sizeof(*log) * log_len);
1243 }
1244 }
1245
1246 static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv)
1247 {
1248 struct ipw_fw_error *error;
1249 u32 log_len = ipw_get_event_log_len(priv);
1250 u32 base = ipw_read32(priv, IPW_ERROR_LOG);
1251 u32 elem_len = ipw_read_reg32(priv, base);
1252
1253 error = kmalloc(sizeof(*error) +
1254 sizeof(*error->elem) * elem_len +
1255 sizeof(*error->log) * log_len, GFP_ATOMIC);
1256 if (!error) {
1257 IPW_ERROR("Memory allocation for firmware error log "
1258 "failed.\n");
1259 return NULL;
1260 }
1261 error->jiffies = jiffies;
1262 error->status = priv->status;
1263 error->config = priv->config;
1264 error->elem_len = elem_len;
1265 error->log_len = log_len;
1266 error->elem = (struct ipw_error_elem *)error->payload;
1267 error->log = (struct ipw_event *)(error->elem + elem_len);
1268
1269 ipw_capture_event_log(priv, log_len, error->log);
1270
1271 if (elem_len)
1272 ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem,
1273 sizeof(*error->elem) * elem_len);
1274
1275 return error;
1276 }
1277
1278 static ssize_t show_event_log(struct device *d,
1279 struct device_attribute *attr, char *buf)
1280 {
1281 struct ipw_priv *priv = dev_get_drvdata(d);
1282 u32 log_len = ipw_get_event_log_len(priv);
1283 u32 log_size;
1284 struct ipw_event *log;
1285 u32 len = 0, i;
1286
1287 /* not using min() because of its strict type checking */
1288 log_size = PAGE_SIZE / sizeof(*log) > log_len ?
1289 sizeof(*log) * log_len : PAGE_SIZE;
1290 log = kzalloc(log_size, GFP_KERNEL);
1291 if (!log) {
1292 IPW_ERROR("Unable to allocate memory for log\n");
1293 return 0;
1294 }
1295 log_len = log_size / sizeof(*log);
1296 ipw_capture_event_log(priv, log_len, log);
1297
1298 len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len);
1299 for (i = 0; i < log_len; i++)
1300 len += snprintf(buf + len, PAGE_SIZE - len,
1301 "\n%08X%08X%08X",
1302 log[i].time, log[i].event, log[i].data);
1303 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1304 kfree(log);
1305 return len;
1306 }
1307
1308 static DEVICE_ATTR(event_log, S_IRUGO, show_event_log, NULL);
1309
1310 static ssize_t show_error(struct device *d,
1311 struct device_attribute *attr, char *buf)
1312 {
1313 struct ipw_priv *priv = dev_get_drvdata(d);
1314 u32 len = 0, i;
1315 if (!priv->error)
1316 return 0;
1317 len += snprintf(buf + len, PAGE_SIZE - len,
1318 "%08lX%08X%08X%08X",
1319 priv->error->jiffies,
1320 priv->error->status,
1321 priv->error->config, priv->error->elem_len);
1322 for (i = 0; i < priv->error->elem_len; i++)
1323 len += snprintf(buf + len, PAGE_SIZE - len,
1324 "\n%08X%08X%08X%08X%08X%08X%08X",
1325 priv->error->elem[i].time,
1326 priv->error->elem[i].desc,
1327 priv->error->elem[i].blink1,
1328 priv->error->elem[i].blink2,
1329 priv->error->elem[i].link1,
1330 priv->error->elem[i].link2,
1331 priv->error->elem[i].data);
1332
1333 len += snprintf(buf + len, PAGE_SIZE - len,
1334 "\n%08X", priv->error->log_len);
1335 for (i = 0; i < priv->error->log_len; i++)
1336 len += snprintf(buf + len, PAGE_SIZE - len,
1337 "\n%08X%08X%08X",
1338 priv->error->log[i].time,
1339 priv->error->log[i].event,
1340 priv->error->log[i].data);
1341 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1342 return len;
1343 }
1344
1345 static ssize_t clear_error(struct device *d,
1346 struct device_attribute *attr,
1347 const char *buf, size_t count)
1348 {
1349 struct ipw_priv *priv = dev_get_drvdata(d);
1350
1351 kfree(priv->error);
1352 priv->error = NULL;
1353 return count;
1354 }
1355
1356 static DEVICE_ATTR(error, S_IRUGO | S_IWUSR, show_error, clear_error);
1357
1358 static ssize_t show_cmd_log(struct device *d,
1359 struct device_attribute *attr, char *buf)
1360 {
1361 struct ipw_priv *priv = dev_get_drvdata(d);
1362 u32 len = 0, i;
1363 if (!priv->cmdlog)
1364 return 0;
1365 for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len;
1366 (i != priv->cmdlog_pos) && (len < PAGE_SIZE);
1367 i = (i + 1) % priv->cmdlog_len) {
1368 len +=
1369 snprintf(buf + len, PAGE_SIZE - len,
1370 "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies,
1371 priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd,
1372 priv->cmdlog[i].cmd.len);
1373 len +=
1374 snprintk_buf(buf + len, PAGE_SIZE - len,
1375 (u8 *) priv->cmdlog[i].cmd.param,
1376 priv->cmdlog[i].cmd.len);
1377 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1378 }
1379 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1380 return len;
1381 }
1382
1383 static DEVICE_ATTR(cmd_log, S_IRUGO, show_cmd_log, NULL);
1384
1385 #ifdef CONFIG_IPW2200_PROMISCUOUS
1386 static void ipw_prom_free(struct ipw_priv *priv);
1387 static int ipw_prom_alloc(struct ipw_priv *priv);
1388 static ssize_t store_rtap_iface(struct device *d,
1389 struct device_attribute *attr,
1390 const char *buf, size_t count)
1391 {
1392 struct ipw_priv *priv = dev_get_drvdata(d);
1393 int rc = 0;
1394
1395 if (count < 1)
1396 return -EINVAL;
1397
1398 switch (buf[0]) {
1399 case '0':
1400 if (!rtap_iface)
1401 return count;
1402
1403 if (netif_running(priv->prom_net_dev)) {
1404 IPW_WARNING("Interface is up. Cannot unregister.\n");
1405 return count;
1406 }
1407
1408 ipw_prom_free(priv);
1409 rtap_iface = 0;
1410 break;
1411
1412 case '1':
1413 if (rtap_iface)
1414 return count;
1415
1416 rc = ipw_prom_alloc(priv);
1417 if (!rc)
1418 rtap_iface = 1;
1419 break;
1420
1421 default:
1422 return -EINVAL;
1423 }
1424
1425 if (rc) {
1426 IPW_ERROR("Failed to register promiscuous network "
1427 "device (error %d).\n", rc);
1428 }
1429
1430 return count;
1431 }
1432
1433 static ssize_t show_rtap_iface(struct device *d,
1434 struct device_attribute *attr,
1435 char *buf)
1436 {
1437 struct ipw_priv *priv = dev_get_drvdata(d);
1438 if (rtap_iface)
1439 return sprintf(buf, "%s", priv->prom_net_dev->name);
1440 else {
1441 buf[0] = '-';
1442 buf[1] = '1';
1443 buf[2] = '\0';
1444 return 3;
1445 }
1446 }
1447
1448 static DEVICE_ATTR(rtap_iface, S_IWUSR | S_IRUSR, show_rtap_iface,
1449 store_rtap_iface);
1450
1451 static ssize_t store_rtap_filter(struct device *d,
1452 struct device_attribute *attr,
1453 const char *buf, size_t count)
1454 {
1455 struct ipw_priv *priv = dev_get_drvdata(d);
1456
1457 if (!priv->prom_priv) {
1458 IPW_ERROR("Attempting to set filter without "
1459 "rtap_iface enabled.\n");
1460 return -EPERM;
1461 }
1462
1463 priv->prom_priv->filter = simple_strtol(buf, NULL, 0);
1464
1465 IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n",
1466 BIT_ARG16(priv->prom_priv->filter));
1467
1468 return count;
1469 }
1470
1471 static ssize_t show_rtap_filter(struct device *d,
1472 struct device_attribute *attr,
1473 char *buf)
1474 {
1475 struct ipw_priv *priv = dev_get_drvdata(d);
1476 return sprintf(buf, "0x%04X",
1477 priv->prom_priv ? priv->prom_priv->filter : 0);
1478 }
1479
1480 static DEVICE_ATTR(rtap_filter, S_IWUSR | S_IRUSR, show_rtap_filter,
1481 store_rtap_filter);
1482 #endif
1483
1484 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
1485 char *buf)
1486 {
1487 struct ipw_priv *priv = dev_get_drvdata(d);
1488 return sprintf(buf, "%d\n", priv->ieee->scan_age);
1489 }
1490
1491 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
1492 const char *buf, size_t count)
1493 {
1494 struct ipw_priv *priv = dev_get_drvdata(d);
1495 struct net_device *dev = priv->net_dev;
1496 char buffer[] = "00000000";
1497 unsigned long len =
1498 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
1499 unsigned long val;
1500 char *p = buffer;
1501
1502 IPW_DEBUG_INFO("enter\n");
1503
1504 strncpy(buffer, buf, len);
1505 buffer[len] = 0;
1506
1507 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1508 p++;
1509 if (p[0] == 'x' || p[0] == 'X')
1510 p++;
1511 val = simple_strtoul(p, &p, 16);
1512 } else
1513 val = simple_strtoul(p, &p, 10);
1514 if (p == buffer) {
1515 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
1516 } else {
1517 priv->ieee->scan_age = val;
1518 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
1519 }
1520
1521 IPW_DEBUG_INFO("exit\n");
1522 return len;
1523 }
1524
1525 static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
1526
1527 static ssize_t show_led(struct device *d, struct device_attribute *attr,
1528 char *buf)
1529 {
1530 struct ipw_priv *priv = dev_get_drvdata(d);
1531 return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1);
1532 }
1533
1534 static ssize_t store_led(struct device *d, struct device_attribute *attr,
1535 const char *buf, size_t count)
1536 {
1537 struct ipw_priv *priv = dev_get_drvdata(d);
1538
1539 IPW_DEBUG_INFO("enter\n");
1540
1541 if (count == 0)
1542 return 0;
1543
1544 if (*buf == 0) {
1545 IPW_DEBUG_LED("Disabling LED control.\n");
1546 priv->config |= CFG_NO_LED;
1547 ipw_led_shutdown(priv);
1548 } else {
1549 IPW_DEBUG_LED("Enabling LED control.\n");
1550 priv->config &= ~CFG_NO_LED;
1551 ipw_led_init(priv);
1552 }
1553
1554 IPW_DEBUG_INFO("exit\n");
1555 return count;
1556 }
1557
1558 static DEVICE_ATTR(led, S_IWUSR | S_IRUGO, show_led, store_led);
1559
1560 static ssize_t show_status(struct device *d,
1561 struct device_attribute *attr, char *buf)
1562 {
1563 struct ipw_priv *p = dev_get_drvdata(d);
1564 return sprintf(buf, "0x%08x\n", (int)p->status);
1565 }
1566
1567 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
1568
1569 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
1570 char *buf)
1571 {
1572 struct ipw_priv *p = dev_get_drvdata(d);
1573 return sprintf(buf, "0x%08x\n", (int)p->config);
1574 }
1575
1576 static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
1577
1578 static ssize_t show_nic_type(struct device *d,
1579 struct device_attribute *attr, char *buf)
1580 {
1581 struct ipw_priv *priv = dev_get_drvdata(d);
1582 return sprintf(buf, "TYPE: %d\n", priv->nic_type);
1583 }
1584
1585 static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);
1586
1587 static ssize_t show_ucode_version(struct device *d,
1588 struct device_attribute *attr, char *buf)
1589 {
1590 u32 len = sizeof(u32), tmp = 0;
1591 struct ipw_priv *p = dev_get_drvdata(d);
1592
1593 if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
1594 return 0;
1595
1596 return sprintf(buf, "0x%08x\n", tmp);
1597 }
1598
1599 static DEVICE_ATTR(ucode_version, S_IWUSR | S_IRUGO, show_ucode_version, NULL);
1600
1601 static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
1602 char *buf)
1603 {
1604 u32 len = sizeof(u32), tmp = 0;
1605 struct ipw_priv *p = dev_get_drvdata(d);
1606
1607 if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
1608 return 0;
1609
1610 return sprintf(buf, "0x%08x\n", tmp);
1611 }
1612
1613 static DEVICE_ATTR(rtc, S_IWUSR | S_IRUGO, show_rtc, NULL);
1614
1615 /*
1616 * Add a device attribute to view/control the delay between eeprom
1617 * operations.
1618 */
1619 static ssize_t show_eeprom_delay(struct device *d,
1620 struct device_attribute *attr, char *buf)
1621 {
1622 struct ipw_priv *p = dev_get_drvdata(d);
1623 int n = p->eeprom_delay;
1624 return sprintf(buf, "%i\n", n);
1625 }
1626 static ssize_t store_eeprom_delay(struct device *d,
1627 struct device_attribute *attr,
1628 const char *buf, size_t count)
1629 {
1630 struct ipw_priv *p = dev_get_drvdata(d);
1631 sscanf(buf, "%i", &p->eeprom_delay);
1632 return strnlen(buf, count);
1633 }
1634
1635 static DEVICE_ATTR(eeprom_delay, S_IWUSR | S_IRUGO,
1636 show_eeprom_delay, store_eeprom_delay);
1637
1638 static ssize_t show_command_event_reg(struct device *d,
1639 struct device_attribute *attr, char *buf)
1640 {
1641 u32 reg = 0;
1642 struct ipw_priv *p = dev_get_drvdata(d);
1643
1644 reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT);
1645 return sprintf(buf, "0x%08x\n", reg);
1646 }
1647 static ssize_t store_command_event_reg(struct device *d,
1648 struct device_attribute *attr,
1649 const char *buf, size_t count)
1650 {
1651 u32 reg;
1652 struct ipw_priv *p = dev_get_drvdata(d);
1653
1654 sscanf(buf, "%x", &reg);
1655 ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg);
1656 return strnlen(buf, count);
1657 }
1658
1659 static DEVICE_ATTR(command_event_reg, S_IWUSR | S_IRUGO,
1660 show_command_event_reg, store_command_event_reg);
1661
1662 static ssize_t show_mem_gpio_reg(struct device *d,
1663 struct device_attribute *attr, char *buf)
1664 {
1665 u32 reg = 0;
1666 struct ipw_priv *p = dev_get_drvdata(d);
1667
1668 reg = ipw_read_reg32(p, 0x301100);
1669 return sprintf(buf, "0x%08x\n", reg);
1670 }
1671 static ssize_t store_mem_gpio_reg(struct device *d,
1672 struct device_attribute *attr,
1673 const char *buf, size_t count)
1674 {
1675 u32 reg;
1676 struct ipw_priv *p = dev_get_drvdata(d);
1677
1678 sscanf(buf, "%x", &reg);
1679 ipw_write_reg32(p, 0x301100, reg);
1680 return strnlen(buf, count);
1681 }
1682
1683 static DEVICE_ATTR(mem_gpio_reg, S_IWUSR | S_IRUGO,
1684 show_mem_gpio_reg, store_mem_gpio_reg);
1685
1686 static ssize_t show_indirect_dword(struct device *d,
1687 struct device_attribute *attr, char *buf)
1688 {
1689 u32 reg = 0;
1690 struct ipw_priv *priv = dev_get_drvdata(d);
1691
1692 if (priv->status & STATUS_INDIRECT_DWORD)
1693 reg = ipw_read_reg32(priv, priv->indirect_dword);
1694 else
1695 reg = 0;
1696
1697 return sprintf(buf, "0x%08x\n", reg);
1698 }
1699 static ssize_t store_indirect_dword(struct device *d,
1700 struct device_attribute *attr,
1701 const char *buf, size_t count)
1702 {
1703 struct ipw_priv *priv = dev_get_drvdata(d);
1704
1705 sscanf(buf, "%x", &priv->indirect_dword);
1706 priv->status |= STATUS_INDIRECT_DWORD;
1707 return strnlen(buf, count);
1708 }
1709
1710 static DEVICE_ATTR(indirect_dword, S_IWUSR | S_IRUGO,
1711 show_indirect_dword, store_indirect_dword);
1712
1713 static ssize_t show_indirect_byte(struct device *d,
1714 struct device_attribute *attr, char *buf)
1715 {
1716 u8 reg = 0;
1717 struct ipw_priv *priv = dev_get_drvdata(d);
1718
1719 if (priv->status & STATUS_INDIRECT_BYTE)
1720 reg = ipw_read_reg8(priv, priv->indirect_byte);
1721 else
1722 reg = 0;
1723
1724 return sprintf(buf, "0x%02x\n", reg);
1725 }
1726 static ssize_t store_indirect_byte(struct device *d,
1727 struct device_attribute *attr,
1728 const char *buf, size_t count)
1729 {
1730 struct ipw_priv *priv = dev_get_drvdata(d);
1731
1732 sscanf(buf, "%x", &priv->indirect_byte);
1733 priv->status |= STATUS_INDIRECT_BYTE;
1734 return strnlen(buf, count);
1735 }
1736
1737 static DEVICE_ATTR(indirect_byte, S_IWUSR | S_IRUGO,
1738 show_indirect_byte, store_indirect_byte);
1739
1740 static ssize_t show_direct_dword(struct device *d,
1741 struct device_attribute *attr, char *buf)
1742 {
1743 u32 reg = 0;
1744 struct ipw_priv *priv = dev_get_drvdata(d);
1745
1746 if (priv->status & STATUS_DIRECT_DWORD)
1747 reg = ipw_read32(priv, priv->direct_dword);
1748 else
1749 reg = 0;
1750
1751 return sprintf(buf, "0x%08x\n", reg);
1752 }
1753 static ssize_t store_direct_dword(struct device *d,
1754 struct device_attribute *attr,
1755 const char *buf, size_t count)
1756 {
1757 struct ipw_priv *priv = dev_get_drvdata(d);
1758
1759 sscanf(buf, "%x", &priv->direct_dword);
1760 priv->status |= STATUS_DIRECT_DWORD;
1761 return strnlen(buf, count);
1762 }
1763
1764 static DEVICE_ATTR(direct_dword, S_IWUSR | S_IRUGO,
1765 show_direct_dword, store_direct_dword);
1766
1767 static int rf_kill_active(struct ipw_priv *priv)
1768 {
1769 if (0 == (ipw_read32(priv, 0x30) & 0x10000)) {
1770 priv->status |= STATUS_RF_KILL_HW;
1771 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1772 } else {
1773 priv->status &= ~STATUS_RF_KILL_HW;
1774 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1775 }
1776
1777 return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
1778 }
1779
1780 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
1781 char *buf)
1782 {
1783 /* 0 - RF kill not enabled
1784 1 - SW based RF kill active (sysfs)
1785 2 - HW based RF kill active
1786 3 - Both HW and SW baed RF kill active */
1787 struct ipw_priv *priv = dev_get_drvdata(d);
1788 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
1789 (rf_kill_active(priv) ? 0x2 : 0x0);
1790 return sprintf(buf, "%i\n", val);
1791 }
1792
1793 static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
1794 {
1795 if ((disable_radio ? 1 : 0) ==
1796 ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0))
1797 return 0;
1798
1799 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
1800 disable_radio ? "OFF" : "ON");
1801
1802 if (disable_radio) {
1803 priv->status |= STATUS_RF_KILL_SW;
1804
1805 cancel_delayed_work(&priv->request_scan);
1806 cancel_delayed_work(&priv->request_direct_scan);
1807 cancel_delayed_work(&priv->request_passive_scan);
1808 cancel_delayed_work(&priv->scan_event);
1809 schedule_work(&priv->down);
1810 } else {
1811 priv->status &= ~STATUS_RF_KILL_SW;
1812 if (rf_kill_active(priv)) {
1813 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
1814 "disabled by HW switch\n");
1815 /* Make sure the RF_KILL check timer is running */
1816 cancel_delayed_work(&priv->rf_kill);
1817 schedule_delayed_work(&priv->rf_kill,
1818 round_jiffies_relative(2 * HZ));
1819 } else
1820 schedule_work(&priv->up);
1821 }
1822
1823 return 1;
1824 }
1825
1826 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
1827 const char *buf, size_t count)
1828 {
1829 struct ipw_priv *priv = dev_get_drvdata(d);
1830
1831 ipw_radio_kill_sw(priv, buf[0] == '1');
1832
1833 return count;
1834 }
1835
1836 static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
1837
1838 static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr,
1839 char *buf)
1840 {
1841 struct ipw_priv *priv = dev_get_drvdata(d);
1842 int pos = 0, len = 0;
1843 if (priv->config & CFG_SPEED_SCAN) {
1844 while (priv->speed_scan[pos] != 0)
1845 len += sprintf(&buf[len], "%d ",
1846 priv->speed_scan[pos++]);
1847 return len + sprintf(&buf[len], "\n");
1848 }
1849
1850 return sprintf(buf, "0\n");
1851 }
1852
1853 static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr,
1854 const char *buf, size_t count)
1855 {
1856 struct ipw_priv *priv = dev_get_drvdata(d);
1857 int channel, pos = 0;
1858 const char *p = buf;
1859
1860 /* list of space separated channels to scan, optionally ending with 0 */
1861 while ((channel = simple_strtol(p, NULL, 0))) {
1862 if (pos == MAX_SPEED_SCAN - 1) {
1863 priv->speed_scan[pos] = 0;
1864 break;
1865 }
1866
1867 if (libipw_is_valid_channel(priv->ieee, channel))
1868 priv->speed_scan[pos++] = channel;
1869 else
1870 IPW_WARNING("Skipping invalid channel request: %d\n",
1871 channel);
1872 p = strchr(p, ' ');
1873 if (!p)
1874 break;
1875 while (*p == ' ' || *p == '\t')
1876 p++;
1877 }
1878
1879 if (pos == 0)
1880 priv->config &= ~CFG_SPEED_SCAN;
1881 else {
1882 priv->speed_scan_pos = 0;
1883 priv->config |= CFG_SPEED_SCAN;
1884 }
1885
1886 return count;
1887 }
1888
1889 static DEVICE_ATTR(speed_scan, S_IWUSR | S_IRUGO, show_speed_scan,
1890 store_speed_scan);
1891
1892 static ssize_t show_net_stats(struct device *d, struct device_attribute *attr,
1893 char *buf)
1894 {
1895 struct ipw_priv *priv = dev_get_drvdata(d);
1896 return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0');
1897 }
1898
1899 static ssize_t store_net_stats(struct device *d, struct device_attribute *attr,
1900 const char *buf, size_t count)
1901 {
1902 struct ipw_priv *priv = dev_get_drvdata(d);
1903 if (buf[0] == '1')
1904 priv->config |= CFG_NET_STATS;
1905 else
1906 priv->config &= ~CFG_NET_STATS;
1907
1908 return count;
1909 }
1910
1911 static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO,
1912 show_net_stats, store_net_stats);
1913
1914 static ssize_t show_channels(struct device *d,
1915 struct device_attribute *attr,
1916 char *buf)
1917 {
1918 struct ipw_priv *priv = dev_get_drvdata(d);
1919 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1920 int len = 0, i;
1921
1922 len = sprintf(&buf[len],
1923 "Displaying %d channels in 2.4Ghz band "
1924 "(802.11bg):\n", geo->bg_channels);
1925
1926 for (i = 0; i < geo->bg_channels; i++) {
1927 len += sprintf(&buf[len], "%d: BSS%s%s, %s, Band %s.\n",
1928 geo->bg[i].channel,
1929 geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT ?
1930 " (radar spectrum)" : "",
1931 ((geo->bg[i].flags & LIBIPW_CH_NO_IBSS) ||
1932 (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT))
1933 ? "" : ", IBSS",
1934 geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY ?
1935 "passive only" : "active/passive",
1936 geo->bg[i].flags & LIBIPW_CH_B_ONLY ?
1937 "B" : "B/G");
1938 }
1939
1940 len += sprintf(&buf[len],
1941 "Displaying %d channels in 5.2Ghz band "
1942 "(802.11a):\n", geo->a_channels);
1943 for (i = 0; i < geo->a_channels; i++) {
1944 len += sprintf(&buf[len], "%d: BSS%s%s, %s.\n",
1945 geo->a[i].channel,
1946 geo->a[i].flags & LIBIPW_CH_RADAR_DETECT ?
1947 " (radar spectrum)" : "",
1948 ((geo->a[i].flags & LIBIPW_CH_NO_IBSS) ||
1949 (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT))
1950 ? "" : ", IBSS",
1951 geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY ?
1952 "passive only" : "active/passive");
1953 }
1954
1955 return len;
1956 }
1957
1958 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
1959
1960 static void notify_wx_assoc_event(struct ipw_priv *priv)
1961 {
1962 union iwreq_data wrqu;
1963 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1964 if (priv->status & STATUS_ASSOCIATED)
1965 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
1966 else
1967 eth_zero_addr(wrqu.ap_addr.sa_data);
1968 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1969 }
1970
1971 static void ipw_irq_tasklet(struct ipw_priv *priv)
1972 {
1973 u32 inta, inta_mask, handled = 0;
1974 unsigned long flags;
1975 int rc = 0;
1976
1977 spin_lock_irqsave(&priv->irq_lock, flags);
1978
1979 inta = ipw_read32(priv, IPW_INTA_RW);
1980 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
1981
1982 if (inta == 0xFFFFFFFF) {
1983 /* Hardware disappeared */
1984 IPW_WARNING("TASKLET INTA == 0xFFFFFFFF\n");
1985 /* Only handle the cached INTA values */
1986 inta = 0;
1987 }
1988 inta &= (IPW_INTA_MASK_ALL & inta_mask);
1989
1990 /* Add any cached INTA values that need to be handled */
1991 inta |= priv->isr_inta;
1992
1993 spin_unlock_irqrestore(&priv->irq_lock, flags);
1994
1995 spin_lock_irqsave(&priv->lock, flags);
1996
1997 /* handle all the justifications for the interrupt */
1998 if (inta & IPW_INTA_BIT_RX_TRANSFER) {
1999 ipw_rx(priv);
2000 handled |= IPW_INTA_BIT_RX_TRANSFER;
2001 }
2002
2003 if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) {
2004 IPW_DEBUG_HC("Command completed.\n");
2005 rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1);
2006 priv->status &= ~STATUS_HCMD_ACTIVE;
2007 wake_up_interruptible(&priv->wait_command_queue);
2008 handled |= IPW_INTA_BIT_TX_CMD_QUEUE;
2009 }
2010
2011 if (inta & IPW_INTA_BIT_TX_QUEUE_1) {
2012 IPW_DEBUG_TX("TX_QUEUE_1\n");
2013 rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0);
2014 handled |= IPW_INTA_BIT_TX_QUEUE_1;
2015 }
2016
2017 if (inta & IPW_INTA_BIT_TX_QUEUE_2) {
2018 IPW_DEBUG_TX("TX_QUEUE_2\n");
2019 rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1);
2020 handled |= IPW_INTA_BIT_TX_QUEUE_2;
2021 }
2022
2023 if (inta & IPW_INTA_BIT_TX_QUEUE_3) {
2024 IPW_DEBUG_TX("TX_QUEUE_3\n");
2025 rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2);
2026 handled |= IPW_INTA_BIT_TX_QUEUE_3;
2027 }
2028
2029 if (inta & IPW_INTA_BIT_TX_QUEUE_4) {
2030 IPW_DEBUG_TX("TX_QUEUE_4\n");
2031 rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3);
2032 handled |= IPW_INTA_BIT_TX_QUEUE_4;
2033 }
2034
2035 if (inta & IPW_INTA_BIT_STATUS_CHANGE) {
2036 IPW_WARNING("STATUS_CHANGE\n");
2037 handled |= IPW_INTA_BIT_STATUS_CHANGE;
2038 }
2039
2040 if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) {
2041 IPW_WARNING("TX_PERIOD_EXPIRED\n");
2042 handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED;
2043 }
2044
2045 if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
2046 IPW_WARNING("HOST_CMD_DONE\n");
2047 handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
2048 }
2049
2050 if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) {
2051 IPW_WARNING("FW_INITIALIZATION_DONE\n");
2052 handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE;
2053 }
2054
2055 if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
2056 IPW_WARNING("PHY_OFF_DONE\n");
2057 handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
2058 }
2059
2060 if (inta & IPW_INTA_BIT_RF_KILL_DONE) {
2061 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
2062 priv->status |= STATUS_RF_KILL_HW;
2063 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2064 wake_up_interruptible(&priv->wait_command_queue);
2065 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2066 cancel_delayed_work(&priv->request_scan);
2067 cancel_delayed_work(&priv->request_direct_scan);
2068 cancel_delayed_work(&priv->request_passive_scan);
2069 cancel_delayed_work(&priv->scan_event);
2070 schedule_work(&priv->link_down);
2071 schedule_delayed_work(&priv->rf_kill, 2 * HZ);
2072 handled |= IPW_INTA_BIT_RF_KILL_DONE;
2073 }
2074
2075 if (inta & IPW_INTA_BIT_FATAL_ERROR) {
2076 IPW_WARNING("Firmware error detected. Restarting.\n");
2077 if (priv->error) {
2078 IPW_DEBUG_FW("Sysfs 'error' log already exists.\n");
2079 if (ipw_debug_level & IPW_DL_FW_ERRORS) {
2080 struct ipw_fw_error *error =
2081 ipw_alloc_error_log(priv);
2082 ipw_dump_error_log(priv, error);
2083 kfree(error);
2084 }
2085 } else {
2086 priv->error = ipw_alloc_error_log(priv);
2087 if (priv->error)
2088 IPW_DEBUG_FW("Sysfs 'error' log captured.\n");
2089 else
2090 IPW_DEBUG_FW("Error allocating sysfs 'error' "
2091 "log.\n");
2092 if (ipw_debug_level & IPW_DL_FW_ERRORS)
2093 ipw_dump_error_log(priv, priv->error);
2094 }
2095
2096 /* XXX: If hardware encryption is for WPA/WPA2,
2097 * we have to notify the supplicant. */
2098 if (priv->ieee->sec.encrypt) {
2099 priv->status &= ~STATUS_ASSOCIATED;
2100 notify_wx_assoc_event(priv);
2101 }
2102
2103 /* Keep the restart process from trying to send host
2104 * commands by clearing the INIT status bit */
2105 priv->status &= ~STATUS_INIT;
2106
2107 /* Cancel currently queued command. */
2108 priv->status &= ~STATUS_HCMD_ACTIVE;
2109 wake_up_interruptible(&priv->wait_command_queue);
2110
2111 schedule_work(&priv->adapter_restart);
2112 handled |= IPW_INTA_BIT_FATAL_ERROR;
2113 }
2114
2115 if (inta & IPW_INTA_BIT_PARITY_ERROR) {
2116 IPW_ERROR("Parity error\n");
2117 handled |= IPW_INTA_BIT_PARITY_ERROR;
2118 }
2119
2120 if (handled != inta) {
2121 IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
2122 }
2123
2124 spin_unlock_irqrestore(&priv->lock, flags);
2125
2126 /* enable all interrupts */
2127 ipw_enable_interrupts(priv);
2128 }
2129
2130 #define IPW_CMD(x) case IPW_CMD_ ## x : return #x
2131 static char *get_cmd_string(u8 cmd)
2132 {
2133 switch (cmd) {
2134 IPW_CMD(HOST_COMPLETE);
2135 IPW_CMD(POWER_DOWN);
2136 IPW_CMD(SYSTEM_CONFIG);
2137 IPW_CMD(MULTICAST_ADDRESS);
2138 IPW_CMD(SSID);
2139 IPW_CMD(ADAPTER_ADDRESS);
2140 IPW_CMD(PORT_TYPE);
2141 IPW_CMD(RTS_THRESHOLD);
2142 IPW_CMD(FRAG_THRESHOLD);
2143 IPW_CMD(POWER_MODE);
2144 IPW_CMD(WEP_KEY);
2145 IPW_CMD(TGI_TX_KEY);
2146 IPW_CMD(SCAN_REQUEST);
2147 IPW_CMD(SCAN_REQUEST_EXT);
2148 IPW_CMD(ASSOCIATE);
2149 IPW_CMD(SUPPORTED_RATES);
2150 IPW_CMD(SCAN_ABORT);
2151 IPW_CMD(TX_FLUSH);
2152 IPW_CMD(QOS_PARAMETERS);
2153 IPW_CMD(DINO_CONFIG);
2154 IPW_CMD(RSN_CAPABILITIES);
2155 IPW_CMD(RX_KEY);
2156 IPW_CMD(CARD_DISABLE);
2157 IPW_CMD(SEED_NUMBER);
2158 IPW_CMD(TX_POWER);
2159 IPW_CMD(COUNTRY_INFO);
2160 IPW_CMD(AIRONET_INFO);
2161 IPW_CMD(AP_TX_POWER);
2162 IPW_CMD(CCKM_INFO);
2163 IPW_CMD(CCX_VER_INFO);
2164 IPW_CMD(SET_CALIBRATION);
2165 IPW_CMD(SENSITIVITY_CALIB);
2166 IPW_CMD(RETRY_LIMIT);
2167 IPW_CMD(IPW_PRE_POWER_DOWN);
2168 IPW_CMD(VAP_BEACON_TEMPLATE);
2169 IPW_CMD(VAP_DTIM_PERIOD);
2170 IPW_CMD(EXT_SUPPORTED_RATES);
2171 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
2172 IPW_CMD(VAP_QUIET_INTERVALS);
2173 IPW_CMD(VAP_CHANNEL_SWITCH);
2174 IPW_CMD(VAP_MANDATORY_CHANNELS);
2175 IPW_CMD(VAP_CELL_PWR_LIMIT);
2176 IPW_CMD(VAP_CF_PARAM_SET);
2177 IPW_CMD(VAP_SET_BEACONING_STATE);
2178 IPW_CMD(MEASUREMENT);
2179 IPW_CMD(POWER_CAPABILITY);
2180 IPW_CMD(SUPPORTED_CHANNELS);
2181 IPW_CMD(TPC_REPORT);
2182 IPW_CMD(WME_INFO);
2183 IPW_CMD(PRODUCTION_COMMAND);
2184 default:
2185 return "UNKNOWN";
2186 }
2187 }
2188
2189 #define HOST_COMPLETE_TIMEOUT HZ
2190
2191 static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
2192 {
2193 int rc = 0;
2194 unsigned long flags;
2195 unsigned long now, end;
2196
2197 spin_lock_irqsave(&priv->lock, flags);
2198 if (priv->status & STATUS_HCMD_ACTIVE) {
2199 IPW_ERROR("Failed to send %s: Already sending a command.\n",
2200 get_cmd_string(cmd->cmd));
2201 spin_unlock_irqrestore(&priv->lock, flags);
2202 return -EAGAIN;
2203 }
2204
2205 priv->status |= STATUS_HCMD_ACTIVE;
2206
2207 if (priv->cmdlog) {
2208 priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies;
2209 priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd;
2210 priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len;
2211 memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param,
2212 cmd->len);
2213 priv->cmdlog[priv->cmdlog_pos].retcode = -1;
2214 }
2215
2216 IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n",
2217 get_cmd_string(cmd->cmd), cmd->cmd, cmd->len,
2218 priv->status);
2219
2220 #ifndef DEBUG_CMD_WEP_KEY
2221 if (cmd->cmd == IPW_CMD_WEP_KEY)
2222 IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n");
2223 else
2224 #endif
2225 printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len);
2226
2227 rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0);
2228 if (rc) {
2229 priv->status &= ~STATUS_HCMD_ACTIVE;
2230 IPW_ERROR("Failed to send %s: Reason %d\n",
2231 get_cmd_string(cmd->cmd), rc);
2232 spin_unlock_irqrestore(&priv->lock, flags);
2233 goto exit;
2234 }
2235 spin_unlock_irqrestore(&priv->lock, flags);
2236
2237 now = jiffies;
2238 end = now + HOST_COMPLETE_TIMEOUT;
2239 again:
2240 rc = wait_event_interruptible_timeout(priv->wait_command_queue,
2241 !(priv->
2242 status & STATUS_HCMD_ACTIVE),
2243 end - now);
2244 if (rc < 0) {
2245 now = jiffies;
2246 if (time_before(now, end))
2247 goto again;
2248 rc = 0;
2249 }
2250
2251 if (rc == 0) {
2252 spin_lock_irqsave(&priv->lock, flags);
2253 if (priv->status & STATUS_HCMD_ACTIVE) {
2254 IPW_ERROR("Failed to send %s: Command timed out.\n",
2255 get_cmd_string(cmd->cmd));
2256 priv->status &= ~STATUS_HCMD_ACTIVE;
2257 spin_unlock_irqrestore(&priv->lock, flags);
2258 rc = -EIO;
2259 goto exit;
2260 }
2261 spin_unlock_irqrestore(&priv->lock, flags);
2262 } else
2263 rc = 0;
2264
2265 if (priv->status & STATUS_RF_KILL_HW) {
2266 IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n",
2267 get_cmd_string(cmd->cmd));
2268 rc = -EIO;
2269 goto exit;
2270 }
2271
2272 exit:
2273 if (priv->cmdlog) {
2274 priv->cmdlog[priv->cmdlog_pos++].retcode = rc;
2275 priv->cmdlog_pos %= priv->cmdlog_len;
2276 }
2277 return rc;
2278 }
2279
2280 static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command)
2281 {
2282 struct host_cmd cmd = {
2283 .cmd = command,
2284 };
2285
2286 return __ipw_send_cmd(priv, &cmd);
2287 }
2288
2289 static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len,
2290 void *data)
2291 {
2292 struct host_cmd cmd = {
2293 .cmd = command,
2294 .len = len,
2295 .param = data,
2296 };
2297
2298 return __ipw_send_cmd(priv, &cmd);
2299 }
2300
2301 static int ipw_send_host_complete(struct ipw_priv *priv)
2302 {
2303 if (!priv) {
2304 IPW_ERROR("Invalid args\n");
2305 return -1;
2306 }
2307
2308 return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE);
2309 }
2310
2311 static int ipw_send_system_config(struct ipw_priv *priv)
2312 {
2313 return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG,
2314 sizeof(priv->sys_config),
2315 &priv->sys_config);
2316 }
2317
2318 static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len)
2319 {
2320 if (!priv || !ssid) {
2321 IPW_ERROR("Invalid args\n");
2322 return -1;
2323 }
2324
2325 return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE),
2326 ssid);
2327 }
2328
2329 static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac)
2330 {
2331 if (!priv || !mac) {
2332 IPW_ERROR("Invalid args\n");
2333 return -1;
2334 }
2335
2336 IPW_DEBUG_INFO("%s: Setting MAC to %pM\n",
2337 priv->net_dev->name, mac);
2338
2339 return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac);
2340 }
2341
2342 static void ipw_adapter_restart(void *adapter)
2343 {
2344 struct ipw_priv *priv = adapter;
2345
2346 if (priv->status & STATUS_RF_KILL_MASK)
2347 return;
2348
2349 ipw_down(priv);
2350
2351 if (priv->assoc_network &&
2352 (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS))
2353 ipw_remove_current_network(priv);
2354
2355 if (ipw_up(priv)) {
2356 IPW_ERROR("Failed to up device\n");
2357 return;
2358 }
2359 }
2360
2361 static void ipw_bg_adapter_restart(struct work_struct *work)
2362 {
2363 struct ipw_priv *priv =
2364 container_of(work, struct ipw_priv, adapter_restart);
2365 mutex_lock(&priv->mutex);
2366 ipw_adapter_restart(priv);
2367 mutex_unlock(&priv->mutex);
2368 }
2369
2370 static void ipw_abort_scan(struct ipw_priv *priv);
2371
2372 #define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
2373
2374 static void ipw_scan_check(void *data)
2375 {
2376 struct ipw_priv *priv = data;
2377
2378 if (priv->status & STATUS_SCAN_ABORTING) {
2379 IPW_DEBUG_SCAN("Scan completion watchdog resetting "
2380 "adapter after (%dms).\n",
2381 jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG));
2382 schedule_work(&priv->adapter_restart);
2383 } else if (priv->status & STATUS_SCANNING) {
2384 IPW_DEBUG_SCAN("Scan completion watchdog aborting scan "
2385 "after (%dms).\n",
2386 jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG));
2387 ipw_abort_scan(priv);
2388 schedule_delayed_work(&priv->scan_check, HZ);
2389 }
2390 }
2391
2392 static void ipw_bg_scan_check(struct work_struct *work)
2393 {
2394 struct ipw_priv *priv =
2395 container_of(work, struct ipw_priv, scan_check.work);
2396 mutex_lock(&priv->mutex);
2397 ipw_scan_check(priv);
2398 mutex_unlock(&priv->mutex);
2399 }
2400
2401 static int ipw_send_scan_request_ext(struct ipw_priv *priv,
2402 struct ipw_scan_request_ext *request)
2403 {
2404 return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT,
2405 sizeof(*request), request);
2406 }
2407
2408 static int ipw_send_scan_abort(struct ipw_priv *priv)
2409 {
2410 if (!priv) {
2411 IPW_ERROR("Invalid args\n");
2412 return -1;
2413 }
2414
2415 return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT);
2416 }
2417
2418 static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
2419 {
2420 struct ipw_sensitivity_calib calib = {
2421 .beacon_rssi_raw = cpu_to_le16(sens),
2422 };
2423
2424 return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib),
2425 &calib);
2426 }
2427
2428 static int ipw_send_associate(struct ipw_priv *priv,
2429 struct ipw_associate *associate)
2430 {
2431 if (!priv || !associate) {
2432 IPW_ERROR("Invalid args\n");
2433 return -1;
2434 }
2435
2436 return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(*associate),
2437 associate);
2438 }
2439
2440 static int ipw_send_supported_rates(struct ipw_priv *priv,
2441 struct ipw_supported_rates *rates)
2442 {
2443 if (!priv || !rates) {
2444 IPW_ERROR("Invalid args\n");
2445 return -1;
2446 }
2447
2448 return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates),
2449 rates);
2450 }
2451
2452 static int ipw_set_random_seed(struct ipw_priv *priv)
2453 {
2454 u32 val;
2455
2456 if (!priv) {
2457 IPW_ERROR("Invalid args\n");
2458 return -1;
2459 }
2460
2461 get_random_bytes(&val, sizeof(val));
2462
2463 return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val);
2464 }
2465
2466 static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
2467 {
2468 __le32 v = cpu_to_le32(phy_off);
2469 if (!priv) {
2470 IPW_ERROR("Invalid args\n");
2471 return -1;
2472 }
2473
2474 return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(v), &v);
2475 }
2476
2477 static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power)
2478 {
2479 if (!priv || !power) {
2480 IPW_ERROR("Invalid args\n");
2481 return -1;
2482 }
2483
2484 return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power);
2485 }
2486
2487 static int ipw_set_tx_power(struct ipw_priv *priv)
2488 {
2489 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
2490 struct ipw_tx_power tx_power;
2491 s8 max_power;
2492 int i;
2493
2494 memset(&tx_power, 0, sizeof(tx_power));
2495
2496 /* configure device for 'G' band */
2497 tx_power.ieee_mode = IPW_G_MODE;
2498 tx_power.num_channels = geo->bg_channels;
2499 for (i = 0; i < geo->bg_channels; i++) {
2500 max_power = geo->bg[i].max_power;
2501 tx_power.channels_tx_power[i].channel_number =
2502 geo->bg[i].channel;
2503 tx_power.channels_tx_power[i].tx_power = max_power ?
2504 min(max_power, priv->tx_power) : priv->tx_power;
2505 }
2506 if (ipw_send_tx_power(priv, &tx_power))
2507 return -EIO;
2508
2509 /* configure device to also handle 'B' band */
2510 tx_power.ieee_mode = IPW_B_MODE;
2511 if (ipw_send_tx_power(priv, &tx_power))
2512 return -EIO;
2513
2514 /* configure device to also handle 'A' band */
2515 if (priv->ieee->abg_true) {
2516 tx_power.ieee_mode = IPW_A_MODE;
2517 tx_power.num_channels = geo->a_channels;
2518 for (i = 0; i < tx_power.num_channels; i++) {
2519 max_power = geo->a[i].max_power;
2520 tx_power.channels_tx_power[i].channel_number =
2521 geo->a[i].channel;
2522 tx_power.channels_tx_power[i].tx_power = max_power ?
2523 min(max_power, priv->tx_power) : priv->tx_power;
2524 }
2525 if (ipw_send_tx_power(priv, &tx_power))
2526 return -EIO;
2527 }
2528 return 0;
2529 }
2530
2531 static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
2532 {
2533 struct ipw_rts_threshold rts_threshold = {
2534 .rts_threshold = cpu_to_le16(rts),
2535 };
2536
2537 if (!priv) {
2538 IPW_ERROR("Invalid args\n");
2539 return -1;
2540 }
2541
2542 return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD,
2543 sizeof(rts_threshold), &rts_threshold);
2544 }
2545
2546 static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
2547 {
2548 struct ipw_frag_threshold frag_threshold = {
2549 .frag_threshold = cpu_to_le16(frag),
2550 };
2551
2552 if (!priv) {
2553 IPW_ERROR("Invalid args\n");
2554 return -1;
2555 }
2556
2557 return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD,
2558 sizeof(frag_threshold), &frag_threshold);
2559 }
2560
2561 static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
2562 {
2563 __le32 param;
2564
2565 if (!priv) {
2566 IPW_ERROR("Invalid args\n");
2567 return -1;
2568 }
2569
2570 /* If on battery, set to 3, if AC set to CAM, else user
2571 * level */
2572 switch (mode) {
2573 case IPW_POWER_BATTERY:
2574 param = cpu_to_le32(IPW_POWER_INDEX_3);
2575 break;
2576 case IPW_POWER_AC:
2577 param = cpu_to_le32(IPW_POWER_MODE_CAM);
2578 break;
2579 default:
2580 param = cpu_to_le32(mode);
2581 break;
2582 }
2583
2584 return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param),
2585 &param);
2586 }
2587
2588 static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit)
2589 {
2590 struct ipw_retry_limit retry_limit = {
2591 .short_retry_limit = slimit,
2592 .long_retry_limit = llimit
2593 };
2594
2595 if (!priv) {
2596 IPW_ERROR("Invalid args\n");
2597 return -1;
2598 }
2599
2600 return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit),
2601 &retry_limit);
2602 }
2603
2604 /*
2605 * The IPW device contains a Microwire compatible EEPROM that stores
2606 * various data like the MAC address. Usually the firmware has exclusive
2607 * access to the eeprom, but during device initialization (before the
2608 * device driver has sent the HostComplete command to the firmware) the
2609 * device driver has read access to the EEPROM by way of indirect addressing
2610 * through a couple of memory mapped registers.
2611 *
2612 * The following is a simplified implementation for pulling data out of the
2613 * the eeprom, along with some helper functions to find information in
2614 * the per device private data's copy of the eeprom.
2615 *
2616 * NOTE: To better understand how these functions work (i.e what is a chip
2617 * select and why do have to keep driving the eeprom clock?), read
2618 * just about any data sheet for a Microwire compatible EEPROM.
2619 */
2620
2621 /* write a 32 bit value into the indirect accessor register */
2622 static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
2623 {
2624 ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
2625
2626 /* the eeprom requires some time to complete the operation */
2627 udelay(p->eeprom_delay);
2628 }
2629
2630 /* perform a chip select operation */
2631 static void eeprom_cs(struct ipw_priv *priv)
2632 {
2633 eeprom_write_reg(priv, 0);
2634 eeprom_write_reg(priv, EEPROM_BIT_CS);
2635 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2636 eeprom_write_reg(priv, EEPROM_BIT_CS);
2637 }
2638
2639 /* perform a chip select operation */
2640 static void eeprom_disable_cs(struct ipw_priv *priv)
2641 {
2642 eeprom_write_reg(priv, EEPROM_BIT_CS);
2643 eeprom_write_reg(priv, 0);
2644 eeprom_write_reg(priv, EEPROM_BIT_SK);
2645 }
2646
2647 /* push a single bit down to the eeprom */
2648 static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit)
2649 {
2650 int d = (bit ? EEPROM_BIT_DI : 0);
2651 eeprom_write_reg(p, EEPROM_BIT_CS | d);
2652 eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK);
2653 }
2654
2655 /* push an opcode followed by an address down to the eeprom */
2656 static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr)
2657 {
2658 int i;
2659
2660 eeprom_cs(priv);
2661 eeprom_write_bit(priv, 1);
2662 eeprom_write_bit(priv, op & 2);
2663 eeprom_write_bit(priv, op & 1);
2664 for (i = 7; i >= 0; i--) {
2665 eeprom_write_bit(priv, addr & (1 << i));
2666 }
2667 }
2668
2669 /* pull 16 bits off the eeprom, one bit at a time */
2670 static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr)
2671 {
2672 int i;
2673 u16 r = 0;
2674
2675 /* Send READ Opcode */
2676 eeprom_op(priv, EEPROM_CMD_READ, addr);
2677
2678 /* Send dummy bit */
2679 eeprom_write_reg(priv, EEPROM_BIT_CS);
2680
2681 /* Read the byte off the eeprom one bit at a time */
2682 for (i = 0; i < 16; i++) {
2683 u32 data = 0;
2684 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2685 eeprom_write_reg(priv, EEPROM_BIT_CS);
2686 data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS);
2687 r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0);
2688 }
2689
2690 /* Send another dummy bit */
2691 eeprom_write_reg(priv, 0);
2692 eeprom_disable_cs(priv);
2693
2694 return r;
2695 }
2696
2697 /* helper function for pulling the mac address out of the private */
2698 /* data's copy of the eeprom data */
2699 static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
2700 {
2701 memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], ETH_ALEN);
2702 }
2703
2704 static void ipw_read_eeprom(struct ipw_priv *priv)
2705 {
2706 int i;
2707 __le16 *eeprom = (__le16 *) priv->eeprom;
2708
2709 IPW_DEBUG_TRACE(">>\n");
2710
2711 /* read entire contents of eeprom into private buffer */
2712 for (i = 0; i < 128; i++)
2713 eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i));
2714
2715 IPW_DEBUG_TRACE("<<\n");
2716 }
2717
2718 /*
2719 * Either the device driver (i.e. the host) or the firmware can
2720 * load eeprom data into the designated region in SRAM. If neither
2721 * happens then the FW will shutdown with a fatal error.
2722 *
2723 * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
2724 * bit needs region of shared SRAM needs to be non-zero.
2725 */
2726 static void ipw_eeprom_init_sram(struct ipw_priv *priv)
2727 {
2728 int i;
2729
2730 IPW_DEBUG_TRACE(">>\n");
2731
2732 /*
2733 If the data looks correct, then copy it to our private
2734 copy. Otherwise let the firmware know to perform the operation
2735 on its own.
2736 */
2737 if (priv->eeprom[EEPROM_VERSION] != 0) {
2738 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
2739
2740 /* write the eeprom data to sram */
2741 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
2742 ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]);
2743
2744 /* Do not load eeprom data on fatal error or suspend */
2745 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
2746 } else {
2747 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
2748
2749 /* Load eeprom data on fatal error or suspend */
2750 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
2751 }
2752
2753 IPW_DEBUG_TRACE("<<\n");
2754 }
2755
2756 static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
2757 {
2758 count >>= 2;
2759 if (!count)
2760 return;
2761 _ipw_write32(priv, IPW_AUTOINC_ADDR, start);
2762 while (count--)
2763 _ipw_write32(priv, IPW_AUTOINC_DATA, 0);
2764 }
2765
2766 static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
2767 {
2768 ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL,
2769 CB_NUMBER_OF_ELEMENTS_SMALL *
2770 sizeof(struct command_block));
2771 }
2772
2773 static int ipw_fw_dma_enable(struct ipw_priv *priv)
2774 { /* start dma engine but no transfers yet */
2775
2776 IPW_DEBUG_FW(">> :\n");
2777
2778 /* Start the dma */
2779 ipw_fw_dma_reset_command_blocks(priv);
2780
2781 /* Write CB base address */
2782 ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL);
2783
2784 IPW_DEBUG_FW("<< :\n");
2785 return 0;
2786 }
2787
2788 static void ipw_fw_dma_abort(struct ipw_priv *priv)
2789 {
2790 u32 control = 0;
2791
2792 IPW_DEBUG_FW(">> :\n");
2793
2794 /* set the Stop and Abort bit */
2795 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
2796 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2797 priv->sram_desc.last_cb_index = 0;
2798
2799 IPW_DEBUG_FW("<<\n");
2800 }
2801
2802 static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index,
2803 struct command_block *cb)
2804 {
2805 u32 address =
2806 IPW_SHARED_SRAM_DMA_CONTROL +
2807 (sizeof(struct command_block) * index);
2808 IPW_DEBUG_FW(">> :\n");
2809
2810 ipw_write_indirect(priv, address, (u8 *) cb,
2811 (int)sizeof(struct command_block));
2812
2813 IPW_DEBUG_FW("<< :\n");
2814 return 0;
2815
2816 }
2817
2818 static int ipw_fw_dma_kick(struct ipw_priv *priv)
2819 {
2820 u32 control = 0;
2821 u32 index = 0;
2822
2823 IPW_DEBUG_FW(">> :\n");
2824
2825 for (index = 0; index < priv->sram_desc.last_cb_index; index++)
2826 ipw_fw_dma_write_command_block(priv, index,
2827 &priv->sram_desc.cb_list[index]);
2828
2829 /* Enable the DMA in the CSR register */
2830 ipw_clear_bit(priv, IPW_RESET_REG,
2831 IPW_RESET_REG_MASTER_DISABLED |
2832 IPW_RESET_REG_STOP_MASTER);
2833
2834 /* Set the Start bit. */
2835 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
2836 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2837
2838 IPW_DEBUG_FW("<< :\n");
2839 return 0;
2840 }
2841
2842 static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
2843 {
2844 u32 address;
2845 u32 register_value = 0;
2846 u32 cb_fields_address = 0;
2847
2848 IPW_DEBUG_FW(">> :\n");
2849 address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2850 IPW_DEBUG_FW_INFO("Current CB is 0x%x\n", address);
2851
2852 /* Read the DMA Controlor register */
2853 register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL);
2854 IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x\n", register_value);
2855
2856 /* Print the CB values */
2857 cb_fields_address = address;
2858 register_value = ipw_read_reg32(priv, cb_fields_address);
2859 IPW_DEBUG_FW_INFO("Current CB Control Field is 0x%x\n", 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 Source Field is 0x%x\n", register_value);
2864
2865 cb_fields_address += sizeof(u32);
2866 register_value = ipw_read_reg32(priv, cb_fields_address);
2867 IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x\n",
2868 register_value);
2869
2870 cb_fields_address += sizeof(u32);
2871 register_value = ipw_read_reg32(priv, cb_fields_address);
2872 IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x\n", register_value);
2873
2874 IPW_DEBUG_FW(">> :\n");
2875 }
2876
2877 static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
2878 {
2879 u32 current_cb_address = 0;
2880 u32 current_cb_index = 0;
2881
2882 IPW_DEBUG_FW("<< :\n");
2883 current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2884
2885 current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) /
2886 sizeof(struct command_block);
2887
2888 IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X\n",
2889 current_cb_index, current_cb_address);
2890
2891 IPW_DEBUG_FW(">> :\n");
2892 return current_cb_index;
2893
2894 }
2895
2896 static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
2897 u32 src_address,
2898 u32 dest_address,
2899 u32 length,
2900 int interrupt_enabled, int is_last)
2901 {
2902
2903 u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
2904 CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
2905 CB_DEST_SIZE_LONG;
2906 struct command_block *cb;
2907 u32 last_cb_element = 0;
2908
2909 IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
2910 src_address, dest_address, length);
2911
2912 if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
2913 return -1;
2914
2915 last_cb_element = priv->sram_desc.last_cb_index;
2916 cb = &priv->sram_desc.cb_list[last_cb_element];
2917 priv->sram_desc.last_cb_index++;
2918
2919 /* Calculate the new CB control word */
2920 if (interrupt_enabled)
2921 control |= CB_INT_ENABLED;
2922
2923 if (is_last)
2924 control |= CB_LAST_VALID;
2925
2926 control |= length;
2927
2928 /* Calculate the CB Element's checksum value */
2929 cb->status = control ^ src_address ^ dest_address;
2930
2931 /* Copy the Source and Destination addresses */
2932 cb->dest_addr = dest_address;
2933 cb->source_addr = src_address;
2934
2935 /* Copy the Control Word last */
2936 cb->control = control;
2937
2938 return 0;
2939 }
2940
2941 static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address,
2942 int nr, u32 dest_address, u32 len)
2943 {
2944 int ret, i;
2945 u32 size;
2946
2947 IPW_DEBUG_FW(">>\n");
2948 IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n",
2949 nr, dest_address, len);
2950
2951 for (i = 0; i < nr; i++) {
2952 size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH);
2953 ret = ipw_fw_dma_add_command_block(priv, src_address[i],
2954 dest_address +
2955 i * CB_MAX_LENGTH, size,
2956 0, 0);
2957 if (ret) {
2958 IPW_DEBUG_FW_INFO(": Failed\n");
2959 return -1;
2960 } else
2961 IPW_DEBUG_FW_INFO(": Added new cb\n");
2962 }
2963
2964 IPW_DEBUG_FW("<<\n");
2965 return 0;
2966 }
2967
2968 static int ipw_fw_dma_wait(struct ipw_priv *priv)
2969 {
2970 u32 current_index = 0, previous_index;
2971 u32 watchdog = 0;
2972
2973 IPW_DEBUG_FW(">> :\n");
2974
2975 current_index = ipw_fw_dma_command_block_index(priv);
2976 IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n",
2977 (int)priv->sram_desc.last_cb_index);
2978
2979 while (current_index < priv->sram_desc.last_cb_index) {
2980 udelay(50);
2981 previous_index = current_index;
2982 current_index = ipw_fw_dma_command_block_index(priv);
2983
2984 if (previous_index < current_index) {
2985 watchdog = 0;
2986 continue;
2987 }
2988 if (++watchdog > 400) {
2989 IPW_DEBUG_FW_INFO("Timeout\n");
2990 ipw_fw_dma_dump_command_block(priv);
2991 ipw_fw_dma_abort(priv);
2992 return -1;
2993 }
2994 }
2995
2996 ipw_fw_dma_abort(priv);
2997
2998 /*Disable the DMA in the CSR register */
2999 ipw_set_bit(priv, IPW_RESET_REG,
3000 IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER);
3001
3002 IPW_DEBUG_FW("<< dmaWaitSync\n");
3003 return 0;
3004 }
3005
3006 static void ipw_remove_current_network(struct ipw_priv *priv)
3007 {
3008 struct list_head *element, *safe;
3009 struct libipw_network *network = NULL;
3010 unsigned long flags;
3011
3012 spin_lock_irqsave(&priv->ieee->lock, flags);
3013 list_for_each_safe(element, safe, &priv->ieee->network_list) {
3014 network = list_entry(element, struct libipw_network, list);
3015 if (ether_addr_equal(network->bssid, priv->bssid)) {
3016 list_del(element);
3017 list_add_tail(&network->list,
3018 &priv->ieee->network_free_list);
3019 }
3020 }
3021 spin_unlock_irqrestore(&priv->ieee->lock, flags);
3022 }
3023
3024 /**
3025 * Check that card is still alive.
3026 * Reads debug register from domain0.
3027 * If card is present, pre-defined value should
3028 * be found there.
3029 *
3030 * @param priv
3031 * @return 1 if card is present, 0 otherwise
3032 */
3033 static inline int ipw_alive(struct ipw_priv *priv)
3034 {
3035 return ipw_read32(priv, 0x90) == 0xd55555d5;
3036 }
3037
3038 /* timeout in msec, attempted in 10-msec quanta */
3039 static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
3040 int timeout)
3041 {
3042 int i = 0;
3043
3044 do {
3045 if ((ipw_read32(priv, addr) & mask) == mask)
3046 return i;
3047 mdelay(10);
3048 i += 10;
3049 } while (i < timeout);
3050
3051 return -ETIME;
3052 }
3053
3054 /* These functions load the firmware and micro code for the operation of
3055 * the ipw hardware. It assumes the buffer has all the bits for the
3056 * image and the caller is handling the memory allocation and clean up.
3057 */
3058
3059 static int ipw_stop_master(struct ipw_priv *priv)
3060 {
3061 int rc;
3062
3063 IPW_DEBUG_TRACE(">>\n");
3064 /* stop master. typical delay - 0 */
3065 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3066
3067 /* timeout is in msec, polled in 10-msec quanta */
3068 rc = ipw_poll_bit(priv, IPW_RESET_REG,
3069 IPW_RESET_REG_MASTER_DISABLED, 100);
3070 if (rc < 0) {
3071 IPW_ERROR("wait for stop master failed after 100ms\n");
3072 return -1;
3073 }
3074
3075 IPW_DEBUG_INFO("stop master %dms\n", rc);
3076
3077 return rc;
3078 }
3079
3080 static void ipw_arc_release(struct ipw_priv *priv)
3081 {
3082 IPW_DEBUG_TRACE(">>\n");
3083 mdelay(5);
3084
3085 ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3086
3087 /* no one knows timing, for safety add some delay */
3088 mdelay(5);
3089 }
3090
3091 struct fw_chunk {
3092 __le32 address;
3093 __le32 length;
3094 };
3095
3096 static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
3097 {
3098 int rc = 0, i, addr;
3099 u8 cr = 0;
3100 __le16 *image;
3101
3102 image = (__le16 *) data;
3103
3104 IPW_DEBUG_TRACE(">>\n");
3105
3106 rc = ipw_stop_master(priv);
3107
3108 if (rc < 0)
3109 return rc;
3110
3111 for (addr = IPW_SHARED_LOWER_BOUND;
3112 addr < IPW_REGISTER_DOMAIN1_END; addr += 4) {
3113 ipw_write32(priv, addr, 0);
3114 }
3115
3116 /* no ucode (yet) */
3117 memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
3118 /* destroy DMA queues */
3119 /* reset sequence */
3120
3121 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON);
3122 ipw_arc_release(priv);
3123 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF);
3124 mdelay(1);
3125
3126 /* reset PHY */
3127 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN);
3128 mdelay(1);
3129
3130 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0);
3131 mdelay(1);
3132
3133 /* enable ucode store */
3134 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0);
3135 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS);
3136 mdelay(1);
3137
3138 /* write ucode */
3139 /**
3140 * @bug
3141 * Do NOT set indirect address register once and then
3142 * store data to indirect data register in the loop.
3143 * It seems very reasonable, but in this case DINO do not
3144 * accept ucode. It is essential to set address each time.
3145 */
3146 /* load new ipw uCode */
3147 for (i = 0; i < len / 2; i++)
3148 ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE,
3149 le16_to_cpu(image[i]));
3150
3151 /* enable DINO */
3152 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3153 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM);
3154
3155 /* this is where the igx / win driver deveates from the VAP driver. */
3156
3157 /* wait for alive response */
3158 for (i = 0; i < 100; i++) {
3159 /* poll for incoming data */
3160 cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS);
3161 if (cr & DINO_RXFIFO_DATA)
3162 break;
3163 mdelay(1);
3164 }
3165
3166 if (cr & DINO_RXFIFO_DATA) {
3167 /* alive_command_responce size is NOT multiple of 4 */
3168 __le32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
3169
3170 for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
3171 response_buffer[i] =
3172 cpu_to_le32(ipw_read_reg32(priv,
3173 IPW_BASEBAND_RX_FIFO_READ));
3174 memcpy(&priv->dino_alive, response_buffer,
3175 sizeof(priv->dino_alive));
3176 if (priv->dino_alive.alive_command == 1
3177 && priv->dino_alive.ucode_valid == 1) {
3178 rc = 0;
3179 IPW_DEBUG_INFO
3180 ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
3181 "of %02d/%02d/%02d %02d:%02d\n",
3182 priv->dino_alive.software_revision,
3183 priv->dino_alive.software_revision,
3184 priv->dino_alive.device_identifier,
3185 priv->dino_alive.device_identifier,
3186 priv->dino_alive.time_stamp[0],
3187 priv->dino_alive.time_stamp[1],
3188 priv->dino_alive.time_stamp[2],
3189 priv->dino_alive.time_stamp[3],
3190 priv->dino_alive.time_stamp[4]);
3191 } else {
3192 IPW_DEBUG_INFO("Microcode is not alive\n");
3193 rc = -EINVAL;
3194 }
3195 } else {
3196 IPW_DEBUG_INFO("No alive response from DINO\n");
3197 rc = -ETIME;
3198 }
3199
3200 /* disable DINO, otherwise for some reason
3201 firmware have problem getting alive resp. */
3202 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3203
3204 return rc;
3205 }
3206
3207 static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
3208 {
3209 int ret = -1;
3210 int offset = 0;
3211 struct fw_chunk *chunk;
3212 int total_nr = 0;
3213 int i;
3214 struct pci_pool *pool;
3215 void **virts;
3216 dma_addr_t *phys;
3217
3218 IPW_DEBUG_TRACE("<< :\n");
3219
3220 virts = kmalloc(sizeof(void *) * CB_NUMBER_OF_ELEMENTS_SMALL,
3221 GFP_KERNEL);
3222 if (!virts)
3223 return -ENOMEM;
3224
3225 phys = kmalloc(sizeof(dma_addr_t) * CB_NUMBER_OF_ELEMENTS_SMALL,
3226 GFP_KERNEL);
3227 if (!phys) {
3228 kfree(virts);
3229 return -ENOMEM;
3230 }
3231 pool = pci_pool_create("ipw2200", priv->pci_dev, CB_MAX_LENGTH, 0, 0);
3232 if (!pool) {
3233 IPW_ERROR("pci_pool_create failed\n");
3234 kfree(phys);
3235 kfree(virts);
3236 return -ENOMEM;
3237 }
3238
3239 /* Start the Dma */
3240 ret = ipw_fw_dma_enable(priv);
3241
3242 /* the DMA is already ready this would be a bug. */
3243 BUG_ON(priv->sram_desc.last_cb_index > 0);
3244
3245 do {
3246 u32 chunk_len;
3247 u8 *start;
3248 int size;
3249 int nr = 0;
3250
3251 chunk = (struct fw_chunk *)(data + offset);
3252 offset += sizeof(struct fw_chunk);
3253 chunk_len = le32_to_cpu(chunk->length);
3254 start = data + offset;
3255
3256 nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH;
3257 for (i = 0; i < nr; i++) {
3258 virts[total_nr] = pci_pool_alloc(pool, GFP_KERNEL,
3259 &phys[total_nr]);
3260 if (!virts[total_nr]) {
3261 ret = -ENOMEM;
3262 goto out;
3263 }
3264 size = min_t(u32, chunk_len - i * CB_MAX_LENGTH,
3265 CB_MAX_LENGTH);
3266 memcpy(virts[total_nr], start, size);
3267 start += size;
3268 total_nr++;
3269 /* We don't support fw chunk larger than 64*8K */
3270 BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL);
3271 }
3272
3273 /* build DMA packet and queue up for sending */
3274 /* dma to chunk->address, the chunk->length bytes from data +
3275 * offeset*/
3276 /* Dma loading */
3277 ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr],
3278 nr, le32_to_cpu(chunk->address),
3279 chunk_len);
3280 if (ret) {
3281 IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
3282 goto out;
3283 }
3284
3285 offset += chunk_len;
3286 } while (offset < len);
3287
3288 /* Run the DMA and wait for the answer */
3289 ret = ipw_fw_dma_kick(priv);
3290 if (ret) {
3291 IPW_ERROR("dmaKick Failed\n");
3292 goto out;
3293 }
3294
3295 ret = ipw_fw_dma_wait(priv);
3296 if (ret) {
3297 IPW_ERROR("dmaWaitSync Failed\n");
3298 goto out;
3299 }
3300 out:
3301 for (i = 0; i < total_nr; i++)
3302 pci_pool_free(pool, virts[i], phys[i]);
3303
3304 pci_pool_destroy(pool);
3305 kfree(phys);
3306 kfree(virts);
3307
3308 return ret;
3309 }
3310
3311 /* stop nic */
3312 static int ipw_stop_nic(struct ipw_priv *priv)
3313 {
3314 int rc = 0;
3315
3316 /* stop */
3317 ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3318
3319 rc = ipw_poll_bit(priv, IPW_RESET_REG,
3320 IPW_RESET_REG_MASTER_DISABLED, 500);
3321 if (rc < 0) {
3322 IPW_ERROR("wait for reg master disabled failed after 500ms\n");
3323 return rc;
3324 }
3325
3326 ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3327
3328 return rc;
3329 }
3330
3331 static void ipw_start_nic(struct ipw_priv *priv)
3332 {
3333 IPW_DEBUG_TRACE(">>\n");
3334
3335 /* prvHwStartNic release ARC */
3336 ipw_clear_bit(priv, IPW_RESET_REG,
3337 IPW_RESET_REG_MASTER_DISABLED |
3338 IPW_RESET_REG_STOP_MASTER |
3339 CBD_RESET_REG_PRINCETON_RESET);
3340
3341 /* enable power management */
3342 ipw_set_bit(priv, IPW_GP_CNTRL_RW,
3343 IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
3344
3345 IPW_DEBUG_TRACE("<<\n");
3346 }
3347
3348 static int ipw_init_nic(struct ipw_priv *priv)
3349 {
3350 int rc;
3351
3352 IPW_DEBUG_TRACE(">>\n");
3353 /* reset */
3354 /*prvHwInitNic */
3355 /* set "initialization complete" bit to move adapter to D0 state */
3356 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3357
3358 /* low-level PLL activation */
3359 ipw_write32(priv, IPW_READ_INT_REGISTER,
3360 IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
3361
3362 /* wait for clock stabilization */
3363 rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW,
3364 IPW_GP_CNTRL_BIT_CLOCK_READY, 250);
3365 if (rc < 0)
3366 IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
3367
3368 /* assert SW reset */
3369 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET);
3370
3371 udelay(10);
3372
3373 /* set "initialization complete" bit to move adapter to D0 state */
3374 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3375
3376 IPW_DEBUG_TRACE(">>\n");
3377 return 0;
3378 }
3379
3380 /* Call this function from process context, it will sleep in request_firmware.
3381 * Probe is an ok place to call this from.
3382 */
3383 static int ipw_reset_nic(struct ipw_priv *priv)
3384 {
3385 int rc = 0;
3386 unsigned long flags;
3387
3388 IPW_DEBUG_TRACE(">>\n");
3389
3390 rc = ipw_init_nic(priv);
3391
3392 spin_lock_irqsave(&priv->lock, flags);
3393 /* Clear the 'host command active' bit... */
3394 priv->status &= ~STATUS_HCMD_ACTIVE;
3395 wake_up_interruptible(&priv->wait_command_queue);
3396 priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
3397 wake_up_interruptible(&priv->wait_state);
3398 spin_unlock_irqrestore(&priv->lock, flags);
3399
3400 IPW_DEBUG_TRACE("<<\n");
3401 return rc;
3402 }
3403
3404
3405 struct ipw_fw {
3406 __le32 ver;
3407 __le32 boot_size;
3408 __le32 ucode_size;
3409 __le32 fw_size;
3410 u8 data[0];
3411 };
3412
3413 static int ipw_get_fw(struct ipw_priv *priv,
3414 const struct firmware **raw, const char *name)
3415 {
3416 struct ipw_fw *fw;
3417 int rc;
3418
3419 /* ask firmware_class module to get the boot firmware off disk */
3420 rc = request_firmware(raw, name, &priv->pci_dev->dev);
3421 if (rc < 0) {
3422 IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc);
3423 return rc;
3424 }
3425
3426 if ((*raw)->size < sizeof(*fw)) {
3427 IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size);
3428 return -EINVAL;
3429 }
3430
3431 fw = (void *)(*raw)->data;
3432
3433 if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) +
3434 le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) {
3435 IPW_ERROR("%s is too small or corrupt (%zd)\n",
3436 name, (*raw)->size);
3437 return -EINVAL;
3438 }
3439
3440 IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n",
3441 name,
3442 le32_to_cpu(fw->ver) >> 16,
3443 le32_to_cpu(fw->ver) & 0xff,
3444 (*raw)->size - sizeof(*fw));
3445 return 0;
3446 }
3447
3448 #define IPW_RX_BUF_SIZE (3000)
3449
3450 static void ipw_rx_queue_reset(struct ipw_priv *priv,
3451 struct ipw_rx_queue *rxq)
3452 {
3453 unsigned long flags;
3454 int i;
3455
3456 spin_lock_irqsave(&rxq->lock, flags);
3457
3458 INIT_LIST_HEAD(&rxq->rx_free);
3459 INIT_LIST_HEAD(&rxq->rx_used);
3460
3461 /* Fill the rx_used queue with _all_ of the Rx buffers */
3462 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
3463 /* In the reset function, these buffers may have been allocated
3464 * to an SKB, so we need to unmap and free potential storage */
3465 if (rxq->pool[i].skb != NULL) {
3466 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
3467 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3468 dev_kfree_skb(rxq->pool[i].skb);
3469 rxq->pool[i].skb = NULL;
3470 }
3471 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3472 }
3473
3474 /* Set us so that we have processed and used all buffers, but have
3475 * not restocked the Rx queue with fresh buffers */
3476 rxq->read = rxq->write = 0;
3477 rxq->free_count = 0;
3478 spin_unlock_irqrestore(&rxq->lock, flags);
3479 }
3480
3481 #ifdef CONFIG_PM
3482 static int fw_loaded = 0;
3483 static const struct firmware *raw = NULL;
3484
3485 static void free_firmware(void)
3486 {
3487 if (fw_loaded) {
3488 release_firmware(raw);
3489 raw = NULL;
3490 fw_loaded = 0;
3491 }
3492 }
3493 #else
3494 #define free_firmware() do {} while (0)
3495 #endif
3496
3497 static int ipw_load(struct ipw_priv *priv)
3498 {
3499 #ifndef CONFIG_PM
3500 const struct firmware *raw = NULL;
3501 #endif
3502 struct ipw_fw *fw;
3503 u8 *boot_img, *ucode_img, *fw_img;
3504 u8 *name = NULL;
3505 int rc = 0, retries = 3;
3506
3507 switch (priv->ieee->iw_mode) {
3508 case IW_MODE_ADHOC:
3509 name = "ipw2200-ibss.fw";
3510 break;
3511 #ifdef CONFIG_IPW2200_MONITOR
3512 case IW_MODE_MONITOR:
3513 name = "ipw2200-sniffer.fw";
3514 break;
3515 #endif
3516 case IW_MODE_INFRA:
3517 name = "ipw2200-bss.fw";
3518 break;
3519 }
3520
3521 if (!name) {
3522 rc = -EINVAL;
3523 goto error;
3524 }
3525
3526 #ifdef CONFIG_PM
3527 if (!fw_loaded) {
3528 #endif
3529 rc = ipw_get_fw(priv, &raw, name);
3530 if (rc < 0)
3531 goto error;
3532 #ifdef CONFIG_PM
3533 }
3534 #endif
3535
3536 fw = (void *)raw->data;
3537 boot_img = &fw->data[0];
3538 ucode_img = &fw->data[le32_to_cpu(fw->boot_size)];
3539 fw_img = &fw->data[le32_to_cpu(fw->boot_size) +
3540 le32_to_cpu(fw->ucode_size)];
3541
3542 if (rc < 0)
3543 goto error;
3544
3545 if (!priv->rxq)
3546 priv->rxq = ipw_rx_queue_alloc(priv);
3547 else
3548 ipw_rx_queue_reset(priv, priv->rxq);
3549 if (!priv->rxq) {
3550 IPW_ERROR("Unable to initialize Rx queue\n");
3551 rc = -ENOMEM;
3552 goto error;
3553 }
3554
3555 retry:
3556 /* Ensure interrupts are disabled */
3557 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3558 priv->status &= ~STATUS_INT_ENABLED;
3559
3560 /* ack pending interrupts */
3561 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3562
3563 ipw_stop_nic(priv);
3564
3565 rc = ipw_reset_nic(priv);
3566 if (rc < 0) {
3567 IPW_ERROR("Unable to reset NIC\n");
3568 goto error;
3569 }
3570
3571 ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND,
3572 IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND);
3573
3574 /* DMA the initial boot firmware into the device */
3575 rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size));
3576 if (rc < 0) {
3577 IPW_ERROR("Unable to load boot firmware: %d\n", rc);
3578 goto error;
3579 }
3580
3581 /* kick start the device */
3582 ipw_start_nic(priv);
3583
3584 /* wait for the device to finish its initial startup sequence */
3585 rc = ipw_poll_bit(priv, IPW_INTA_RW,
3586 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3587 if (rc < 0) {
3588 IPW_ERROR("device failed to boot initial fw image\n");
3589 goto error;
3590 }
3591 IPW_DEBUG_INFO("initial device response after %dms\n", rc);
3592
3593 /* ack fw init done interrupt */
3594 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3595
3596 /* DMA the ucode into the device */
3597 rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size));
3598 if (rc < 0) {
3599 IPW_ERROR("Unable to load ucode: %d\n", rc);
3600 goto error;
3601 }
3602
3603 /* stop nic */
3604 ipw_stop_nic(priv);
3605
3606 /* DMA bss firmware into the device */
3607 rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size));
3608 if (rc < 0) {
3609 IPW_ERROR("Unable to load firmware: %d\n", rc);
3610 goto error;
3611 }
3612 #ifdef CONFIG_PM
3613 fw_loaded = 1;
3614 #endif
3615
3616 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
3617
3618 rc = ipw_queue_reset(priv);
3619 if (rc < 0) {
3620 IPW_ERROR("Unable to initialize queues\n");
3621 goto error;
3622 }
3623
3624 /* Ensure interrupts are disabled */
3625 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3626 /* ack pending interrupts */
3627 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3628
3629 /* kick start the device */
3630 ipw_start_nic(priv);
3631
3632 if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) {
3633 if (retries > 0) {
3634 IPW_WARNING("Parity error. Retrying init.\n");
3635 retries--;
3636 goto retry;
3637 }
3638
3639 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
3640 rc = -EIO;
3641 goto error;
3642 }
3643
3644 /* wait for the device */
3645 rc = ipw_poll_bit(priv, IPW_INTA_RW,
3646 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3647 if (rc < 0) {
3648 IPW_ERROR("device failed to start within 500ms\n");
3649 goto error;
3650 }
3651 IPW_DEBUG_INFO("device response after %dms\n", rc);
3652
3653 /* ack fw init done interrupt */
3654 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3655
3656 /* read eeprom data */
3657 priv->eeprom_delay = 1;
3658 ipw_read_eeprom(priv);
3659 /* initialize the eeprom region of sram */
3660 ipw_eeprom_init_sram(priv);
3661
3662 /* enable interrupts */
3663 ipw_enable_interrupts(priv);
3664
3665 /* Ensure our queue has valid packets */
3666 ipw_rx_queue_replenish(priv);
3667
3668 ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read);
3669
3670 /* ack pending interrupts */
3671 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3672
3673 #ifndef CONFIG_PM
3674 release_firmware(raw);
3675 #endif
3676 return 0;
3677
3678 error:
3679 if (priv->rxq) {
3680 ipw_rx_queue_free(priv, priv->rxq);
3681 priv->rxq = NULL;
3682 }
3683 ipw_tx_queue_free(priv);
3684 release_firmware(raw);
3685 #ifdef CONFIG_PM
3686 fw_loaded = 0;
3687 raw = NULL;
3688 #endif
3689
3690 return rc;
3691 }
3692
3693 /**
3694 * DMA services
3695 *
3696 * Theory of operation
3697 *
3698 * A queue is a circular buffers with 'Read' and 'Write' pointers.
3699 * 2 empty entries always kept in the buffer to protect from overflow.
3700 *
3701 * For Tx queue, there are low mark and high mark limits. If, after queuing
3702 * the packet for Tx, free space become < low mark, Tx queue stopped. When
3703 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
3704 * Tx queue resumed.
3705 *
3706 * The IPW operates with six queues, one receive queue in the device's
3707 * sram, one transmit queue for sending commands to the device firmware,
3708 * and four transmit queues for data.
3709 *
3710 * The four transmit queues allow for performing quality of service (qos)
3711 * transmissions as per the 802.11 protocol. Currently Linux does not
3712 * provide a mechanism to the user for utilizing prioritized queues, so
3713 * we only utilize the first data transmit queue (queue1).
3714 */
3715
3716 /**
3717 * Driver allocates buffers of this size for Rx
3718 */
3719
3720 /**
3721 * ipw_rx_queue_space - Return number of free slots available in queue.
3722 */
3723 static int ipw_rx_queue_space(const struct ipw_rx_queue *q)
3724 {
3725 int s = q->read - q->write;
3726 if (s <= 0)
3727 s += RX_QUEUE_SIZE;
3728 /* keep some buffer to not confuse full and empty queue */
3729 s -= 2;
3730 if (s < 0)
3731 s = 0;
3732 return s;
3733 }
3734
3735 static inline int ipw_tx_queue_space(const struct clx2_queue *q)
3736 {
3737 int s = q->last_used - q->first_empty;
3738 if (s <= 0)
3739 s += q->n_bd;
3740 s -= 2; /* keep some reserve to not confuse empty and full situations */
3741 if (s < 0)
3742 s = 0;
3743 return s;
3744 }
3745
3746 static inline int ipw_queue_inc_wrap(int index, int n_bd)
3747 {
3748 return (++index == n_bd) ? 0 : index;
3749 }
3750
3751 /**
3752 * Initialize common DMA queue structure
3753 *
3754 * @param q queue to init
3755 * @param count Number of BD's to allocate. Should be power of 2
3756 * @param read_register Address for 'read' register
3757 * (not offset within BAR, full address)
3758 * @param write_register Address for 'write' register
3759 * (not offset within BAR, full address)
3760 * @param base_register Address for 'base' register
3761 * (not offset within BAR, full address)
3762 * @param size Address for 'size' register
3763 * (not offset within BAR, full address)
3764 */
3765 static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
3766 int count, u32 read, u32 write, u32 base, u32 size)
3767 {
3768 q->n_bd = count;
3769
3770 q->low_mark = q->n_bd / 4;
3771 if (q->low_mark < 4)
3772 q->low_mark = 4;
3773
3774 q->high_mark = q->n_bd / 8;
3775 if (q->high_mark < 2)
3776 q->high_mark = 2;
3777
3778 q->first_empty = q->last_used = 0;
3779 q->reg_r = read;
3780 q->reg_w = write;
3781
3782 ipw_write32(priv, base, q->dma_addr);
3783 ipw_write32(priv, size, count);
3784 ipw_write32(priv, read, 0);
3785 ipw_write32(priv, write, 0);
3786
3787 _ipw_read32(priv, 0x90);
3788 }
3789
3790 static int ipw_queue_tx_init(struct ipw_priv *priv,
3791 struct clx2_tx_queue *q,
3792 int count, u32 read, u32 write, u32 base, u32 size)
3793 {
3794 struct pci_dev *dev = priv->pci_dev;
3795
3796 q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
3797 if (!q->txb) {
3798 IPW_ERROR("vmalloc for auxiliary BD structures failed\n");
3799 return -ENOMEM;
3800 }
3801
3802 q->bd =
3803 pci_alloc_consistent(dev, sizeof(q->bd[0]) * count, &q->q.dma_addr);
3804 if (!q->bd) {
3805 IPW_ERROR("pci_alloc_consistent(%zd) failed\n",
3806 sizeof(q->bd[0]) * count);
3807 kfree(q->txb);
3808 q->txb = NULL;
3809 return -ENOMEM;
3810 }
3811
3812 ipw_queue_init(priv, &q->q, count, read, write, base, size);
3813 return 0;
3814 }
3815
3816 /**
3817 * Free one TFD, those at index [txq->q.last_used].
3818 * Do NOT advance any indexes
3819 *
3820 * @param dev
3821 * @param txq
3822 */
3823 static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
3824 struct clx2_tx_queue *txq)
3825 {
3826 struct tfd_frame *bd = &txq->bd[txq->q.last_used];
3827 struct pci_dev *dev = priv->pci_dev;
3828 int i;
3829
3830 /* classify bd */
3831 if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
3832 /* nothing to cleanup after for host commands */
3833 return;
3834
3835 /* sanity check */
3836 if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) {
3837 IPW_ERROR("Too many chunks: %i\n",
3838 le32_to_cpu(bd->u.data.num_chunks));
3839 /** @todo issue fatal error, it is quite serious situation */
3840 return;
3841 }
3842
3843 /* unmap chunks if any */
3844 for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) {
3845 pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]),
3846 le16_to_cpu(bd->u.data.chunk_len[i]),
3847 PCI_DMA_TODEVICE);
3848 if (txq->txb[txq->q.last_used]) {
3849 libipw_txb_free(txq->txb[txq->q.last_used]);
3850 txq->txb[txq->q.last_used] = NULL;
3851 }
3852 }
3853 }
3854
3855 /**
3856 * Deallocate DMA queue.
3857 *
3858 * Empty queue by removing and destroying all BD's.
3859 * Free all buffers.
3860 *
3861 * @param dev
3862 * @param q
3863 */
3864 static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq)
3865 {
3866 struct clx2_queue *q = &txq->q;
3867 struct pci_dev *dev = priv->pci_dev;
3868
3869 if (q->n_bd == 0)
3870 return;
3871
3872 /* first, empty all BD's */
3873 for (; q->first_empty != q->last_used;
3874 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
3875 ipw_queue_tx_free_tfd(priv, txq);
3876 }
3877
3878 /* free buffers belonging to queue itself */
3879 pci_free_consistent(dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd,
3880 q->dma_addr);
3881 kfree(txq->txb);
3882
3883 /* 0 fill whole structure */
3884 memset(txq, 0, sizeof(*txq));
3885 }
3886
3887 /**
3888 * Destroy all DMA queues and structures
3889 *
3890 * @param priv
3891 */
3892 static void ipw_tx_queue_free(struct ipw_priv *priv)
3893 {
3894 /* Tx CMD queue */
3895 ipw_queue_tx_free(priv, &priv->txq_cmd);
3896
3897 /* Tx queues */
3898 ipw_queue_tx_free(priv, &priv->txq[0]);
3899 ipw_queue_tx_free(priv, &priv->txq[1]);
3900 ipw_queue_tx_free(priv, &priv->txq[2]);
3901 ipw_queue_tx_free(priv, &priv->txq[3]);
3902 }
3903
3904 static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid)
3905 {
3906 /* First 3 bytes are manufacturer */
3907 bssid[0] = priv->mac_addr[0];
3908 bssid[1] = priv->mac_addr[1];
3909 bssid[2] = priv->mac_addr[2];
3910
3911 /* Last bytes are random */
3912 get_random_bytes(&bssid[3], ETH_ALEN - 3);
3913
3914 bssid[0] &= 0xfe; /* clear multicast bit */
3915 bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */
3916 }
3917
3918 static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid)
3919 {
3920 struct ipw_station_entry entry;
3921 int i;
3922
3923 for (i = 0; i < priv->num_stations; i++) {
3924 if (ether_addr_equal(priv->stations[i], bssid)) {
3925 /* Another node is active in network */
3926 priv->missed_adhoc_beacons = 0;
3927 if (!(priv->config & CFG_STATIC_CHANNEL))
3928 /* when other nodes drop out, we drop out */
3929 priv->config &= ~CFG_ADHOC_PERSIST;
3930
3931 return i;
3932 }
3933 }
3934
3935 if (i == MAX_STATIONS)
3936 return IPW_INVALID_STATION;
3937
3938 IPW_DEBUG_SCAN("Adding AdHoc station: %pM\n", bssid);
3939
3940 entry.reserved = 0;
3941 entry.support_mode = 0;
3942 memcpy(entry.mac_addr, bssid, ETH_ALEN);
3943 memcpy(priv->stations[i], bssid, ETH_ALEN);
3944 ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
3945 &entry, sizeof(entry));
3946 priv->num_stations++;
3947
3948 return i;
3949 }
3950
3951 static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid)
3952 {
3953 int i;
3954
3955 for (i = 0; i < priv->num_stations; i++)
3956 if (ether_addr_equal(priv->stations[i], bssid))
3957 return i;
3958
3959 return IPW_INVALID_STATION;
3960 }
3961
3962 static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
3963 {
3964 int err;
3965
3966 if (priv->status & STATUS_ASSOCIATING) {
3967 IPW_DEBUG_ASSOC("Disassociating while associating.\n");
3968 schedule_work(&priv->disassociate);
3969 return;
3970 }
3971
3972 if (!(priv->status & STATUS_ASSOCIATED)) {
3973 IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
3974 return;
3975 }
3976
3977 IPW_DEBUG_ASSOC("Disassocation attempt from %pM "
3978 "on channel %d.\n",
3979 priv->assoc_request.bssid,
3980 priv->assoc_request.channel);
3981
3982 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
3983 priv->status |= STATUS_DISASSOCIATING;
3984
3985 if (quiet)
3986 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
3987 else
3988 priv->assoc_request.assoc_type = HC_DISASSOCIATE;
3989
3990 err = ipw_send_associate(priv, &priv->assoc_request);
3991 if (err) {
3992 IPW_DEBUG_HC("Attempt to send [dis]associate command "
3993 "failed.\n");
3994 return;
3995 }
3996
3997 }
3998
3999 static int ipw_disassociate(void *data)
4000 {
4001 struct ipw_priv *priv = data;
4002 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
4003 return 0;
4004 ipw_send_disassociate(data, 0);
4005 netif_carrier_off(priv->net_dev);
4006 return 1;
4007 }
4008
4009 static void ipw_bg_disassociate(struct work_struct *work)
4010 {
4011 struct ipw_priv *priv =
4012 container_of(work, struct ipw_priv, disassociate);
4013 mutex_lock(&priv->mutex);
4014 ipw_disassociate(priv);
4015 mutex_unlock(&priv->mutex);
4016 }
4017
4018 static void ipw_system_config(struct work_struct *work)
4019 {
4020 struct ipw_priv *priv =
4021 container_of(work, struct ipw_priv, system_config);
4022
4023 #ifdef CONFIG_IPW2200_PROMISCUOUS
4024 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
4025 priv->sys_config.accept_all_data_frames = 1;
4026 priv->sys_config.accept_non_directed_frames = 1;
4027 priv->sys_config.accept_all_mgmt_bcpr = 1;
4028 priv->sys_config.accept_all_mgmt_frames = 1;
4029 }
4030 #endif
4031
4032 ipw_send_system_config(priv);
4033 }
4034
4035 struct ipw_status_code {
4036 u16 status;
4037 const char *reason;
4038 };
4039
4040 static const struct ipw_status_code ipw_status_codes[] = {
4041 {0x00, "Successful"},
4042 {0x01, "Unspecified failure"},
4043 {0x0A, "Cannot support all requested capabilities in the "
4044 "Capability information field"},
4045 {0x0B, "Reassociation denied due to inability to confirm that "
4046 "association exists"},
4047 {0x0C, "Association denied due to reason outside the scope of this "
4048 "standard"},
4049 {0x0D,
4050 "Responding station does not support the specified authentication "
4051 "algorithm"},
4052 {0x0E,
4053 "Received an Authentication frame with authentication sequence "
4054 "transaction sequence number out of expected sequence"},
4055 {0x0F, "Authentication rejected because of challenge failure"},
4056 {0x10, "Authentication rejected due to timeout waiting for next "
4057 "frame in sequence"},
4058 {0x11, "Association denied because AP is unable to handle additional "
4059 "associated stations"},
4060 {0x12,
4061 "Association denied due to requesting station not supporting all "
4062 "of the datarates in the BSSBasicServiceSet Parameter"},
4063 {0x13,
4064 "Association denied due to requesting station not supporting "
4065 "short preamble operation"},
4066 {0x14,
4067 "Association denied due to requesting station not supporting "
4068 "PBCC encoding"},
4069 {0x15,
4070 "Association denied due to requesting station not supporting "
4071 "channel agility"},
4072 {0x19,
4073 "Association denied due to requesting station not supporting "
4074 "short slot operation"},
4075 {0x1A,
4076 "Association denied due to requesting station not supporting "
4077 "DSSS-OFDM operation"},
4078 {0x28, "Invalid Information Element"},
4079 {0x29, "Group Cipher is not valid"},
4080 {0x2A, "Pairwise Cipher is not valid"},
4081 {0x2B, "AKMP is not valid"},
4082 {0x2C, "Unsupported RSN IE version"},
4083 {0x2D, "Invalid RSN IE Capabilities"},
4084 {0x2E, "Cipher suite is rejected per security policy"},
4085 };
4086
4087 static const char *ipw_get_status_code(u16 status)
4088 {
4089 int i;
4090 for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
4091 if (ipw_status_codes[i].status == (status & 0xff))
4092 return ipw_status_codes[i].reason;
4093 return "Unknown status value.";
4094 }
4095
4096 static void inline average_init(struct average *avg)
4097 {
4098 memset(avg, 0, sizeof(*avg));
4099 }
4100
4101 #define DEPTH_RSSI 8
4102 #define DEPTH_NOISE 16
4103 static s16 exponential_average(s16 prev_avg, s16 val, u8 depth)
4104 {
4105 return ((depth-1)*prev_avg + val)/depth;
4106 }
4107
4108 static void average_add(struct average *avg, s16 val)
4109 {
4110 avg->sum -= avg->entries[avg->pos];
4111 avg->sum += val;
4112 avg->entries[avg->pos++] = val;
4113 if (unlikely(avg->pos == AVG_ENTRIES)) {
4114 avg->init = 1;
4115 avg->pos = 0;
4116 }
4117 }
4118
4119 static s16 average_value(struct average *avg)
4120 {
4121 if (!unlikely(avg->init)) {
4122 if (avg->pos)
4123 return avg->sum / avg->pos;
4124 return 0;
4125 }
4126
4127 return avg->sum / AVG_ENTRIES;
4128 }
4129
4130 static void ipw_reset_stats(struct ipw_priv *priv)
4131 {
4132 u32 len = sizeof(u32);
4133
4134 priv->quality = 0;
4135
4136 average_init(&priv->average_missed_beacons);
4137 priv->exp_avg_rssi = -60;
4138 priv->exp_avg_noise = -85 + 0x100;
4139
4140 priv->last_rate = 0;
4141 priv->last_missed_beacons = 0;
4142 priv->last_rx_packets = 0;
4143 priv->last_tx_packets = 0;
4144 priv->last_tx_failures = 0;
4145
4146 /* Firmware managed, reset only when NIC is restarted, so we have to
4147 * normalize on the current value */
4148 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
4149 &priv->last_rx_err, &len);
4150 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
4151 &priv->last_tx_failures, &len);
4152
4153 /* Driver managed, reset with each association */
4154 priv->missed_adhoc_beacons = 0;
4155 priv->missed_beacons = 0;
4156 priv->tx_packets = 0;
4157 priv->rx_packets = 0;
4158
4159 }
4160
4161 static u32 ipw_get_max_rate(struct ipw_priv *priv)
4162 {
4163 u32 i = 0x80000000;
4164 u32 mask = priv->rates_mask;
4165 /* If currently associated in B mode, restrict the maximum
4166 * rate match to B rates */
4167 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
4168 mask &= LIBIPW_CCK_RATES_MASK;
4169
4170 /* TODO: Verify that the rate is supported by the current rates
4171 * list. */
4172
4173 while (i && !(mask & i))
4174 i >>= 1;
4175 switch (i) {
4176 case LIBIPW_CCK_RATE_1MB_MASK:
4177 return 1000000;
4178 case LIBIPW_CCK_RATE_2MB_MASK:
4179 return 2000000;
4180 case LIBIPW_CCK_RATE_5MB_MASK:
4181 return 5500000;
4182 case LIBIPW_OFDM_RATE_6MB_MASK:
4183 return 6000000;
4184 case LIBIPW_OFDM_RATE_9MB_MASK:
4185 return 9000000;
4186 case LIBIPW_CCK_RATE_11MB_MASK:
4187 return 11000000;
4188 case LIBIPW_OFDM_RATE_12MB_MASK:
4189 return 12000000;
4190 case LIBIPW_OFDM_RATE_18MB_MASK:
4191 return 18000000;
4192 case LIBIPW_OFDM_RATE_24MB_MASK:
4193 return 24000000;
4194 case LIBIPW_OFDM_RATE_36MB_MASK:
4195 return 36000000;
4196 case LIBIPW_OFDM_RATE_48MB_MASK:
4197 return 48000000;
4198 case LIBIPW_OFDM_RATE_54MB_MASK:
4199 return 54000000;
4200 }
4201
4202 if (priv->ieee->mode == IEEE_B)
4203 return 11000000;
4204 else
4205 return 54000000;
4206 }
4207
4208 static u32 ipw_get_current_rate(struct ipw_priv *priv)
4209 {
4210 u32 rate, len = sizeof(rate);
4211 int err;
4212
4213 if (!(priv->status & STATUS_ASSOCIATED))
4214 return 0;
4215
4216 if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
4217 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
4218 &len);
4219 if (err) {
4220 IPW_DEBUG_INFO("failed querying ordinals.\n");
4221 return 0;
4222 }
4223 } else
4224 return ipw_get_max_rate(priv);
4225
4226 switch (rate) {
4227 case IPW_TX_RATE_1MB:
4228 return 1000000;
4229 case IPW_TX_RATE_2MB:
4230 return 2000000;
4231 case IPW_TX_RATE_5MB:
4232 return 5500000;
4233 case IPW_TX_RATE_6MB:
4234 return 6000000;
4235 case IPW_TX_RATE_9MB:
4236 return 9000000;
4237 case IPW_TX_RATE_11MB:
4238 return 11000000;
4239 case IPW_TX_RATE_12MB:
4240 return 12000000;
4241 case IPW_TX_RATE_18MB:
4242 return 18000000;
4243 case IPW_TX_RATE_24MB:
4244 return 24000000;
4245 case IPW_TX_RATE_36MB:
4246 return 36000000;
4247 case IPW_TX_RATE_48MB:
4248 return 48000000;
4249 case IPW_TX_RATE_54MB:
4250 return 54000000;
4251 }
4252
4253 return 0;
4254 }
4255
4256 #define IPW_STATS_INTERVAL (2 * HZ)
4257 static void ipw_gather_stats(struct ipw_priv *priv)
4258 {
4259 u32 rx_err, rx_err_delta, rx_packets_delta;
4260 u32 tx_failures, tx_failures_delta, tx_packets_delta;
4261 u32 missed_beacons_percent, missed_beacons_delta;
4262 u32 quality = 0;
4263 u32 len = sizeof(u32);
4264 s16 rssi;
4265 u32 beacon_quality, signal_quality, tx_quality, rx_quality,
4266 rate_quality;
4267 u32 max_rate;
4268
4269 if (!(priv->status & STATUS_ASSOCIATED)) {
4270 priv->quality = 0;
4271 return;
4272 }
4273
4274 /* Update the statistics */
4275 ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
4276 &priv->missed_beacons, &len);
4277 missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons;
4278 priv->last_missed_beacons = priv->missed_beacons;
4279 if (priv->assoc_request.beacon_interval) {
4280 missed_beacons_percent = missed_beacons_delta *
4281 (HZ * le16_to_cpu(priv->assoc_request.beacon_interval)) /
4282 (IPW_STATS_INTERVAL * 10);
4283 } else {
4284 missed_beacons_percent = 0;
4285 }
4286 average_add(&priv->average_missed_beacons, missed_beacons_percent);
4287
4288 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
4289 rx_err_delta = rx_err - priv->last_rx_err;
4290 priv->last_rx_err = rx_err;
4291
4292 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
4293 tx_failures_delta = tx_failures - priv->last_tx_failures;
4294 priv->last_tx_failures = tx_failures;
4295
4296 rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
4297 priv->last_rx_packets = priv->rx_packets;
4298
4299 tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
4300 priv->last_tx_packets = priv->tx_packets;
4301
4302 /* Calculate quality based on the following:
4303 *
4304 * Missed beacon: 100% = 0, 0% = 70% missed
4305 * Rate: 60% = 1Mbs, 100% = Max
4306 * Rx and Tx errors represent a straight % of total Rx/Tx
4307 * RSSI: 100% = > -50, 0% = < -80
4308 * Rx errors: 100% = 0, 0% = 50% missed
4309 *
4310 * The lowest computed quality is used.
4311 *
4312 */
4313 #define BEACON_THRESHOLD 5
4314 beacon_quality = 100 - missed_beacons_percent;
4315 if (beacon_quality < BEACON_THRESHOLD)
4316 beacon_quality = 0;
4317 else
4318 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
4319 (100 - BEACON_THRESHOLD);
4320 IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
4321 beacon_quality, missed_beacons_percent);
4322
4323 priv->last_rate = ipw_get_current_rate(priv);
4324 max_rate = ipw_get_max_rate(priv);
4325 rate_quality = priv->last_rate * 40 / max_rate + 60;
4326 IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
4327 rate_quality, priv->last_rate / 1000000);
4328
4329 if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta)
4330 rx_quality = 100 - (rx_err_delta * 100) /
4331 (rx_packets_delta + rx_err_delta);
4332 else
4333 rx_quality = 100;
4334 IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n",
4335 rx_quality, rx_err_delta, rx_packets_delta);
4336
4337 if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta)
4338 tx_quality = 100 - (tx_failures_delta * 100) /
4339 (tx_packets_delta + tx_failures_delta);
4340 else
4341 tx_quality = 100;
4342 IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n",
4343 tx_quality, tx_failures_delta, tx_packets_delta);
4344
4345 rssi = priv->exp_avg_rssi;
4346 signal_quality =
4347 (100 *
4348 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4349 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) -
4350 (priv->ieee->perfect_rssi - rssi) *
4351 (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) +
4352 62 * (priv->ieee->perfect_rssi - rssi))) /
4353 ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4354 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi));
4355 if (signal_quality > 100)
4356 signal_quality = 100;
4357 else if (signal_quality < 1)
4358 signal_quality = 0;
4359
4360 IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
4361 signal_quality, rssi);
4362
4363 quality = min(rx_quality, signal_quality);
4364 quality = min(tx_quality, quality);
4365 quality = min(rate_quality, quality);
4366 quality = min(beacon_quality, quality);
4367 if (quality == beacon_quality)
4368 IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n",
4369 quality);
4370 if (quality == rate_quality)
4371 IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n",
4372 quality);
4373 if (quality == tx_quality)
4374 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n",
4375 quality);
4376 if (quality == rx_quality)
4377 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n",
4378 quality);
4379 if (quality == signal_quality)
4380 IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n",
4381 quality);
4382
4383 priv->quality = quality;
4384
4385 schedule_delayed_work(&priv->gather_stats, IPW_STATS_INTERVAL);
4386 }
4387
4388 static void ipw_bg_gather_stats(struct work_struct *work)
4389 {
4390 struct ipw_priv *priv =
4391 container_of(work, struct ipw_priv, gather_stats.work);
4392 mutex_lock(&priv->mutex);
4393 ipw_gather_stats(priv);
4394 mutex_unlock(&priv->mutex);
4395 }
4396
4397 /* Missed beacon behavior:
4398 * 1st missed -> roaming_threshold, just wait, don't do any scan/roam.
4399 * roaming_threshold -> disassociate_threshold, scan and roam for better signal.
4400 * Above disassociate threshold, give up and stop scanning.
4401 * Roaming is disabled if disassociate_threshold <= roaming_threshold */
4402 static void ipw_handle_missed_beacon(struct ipw_priv *priv,
4403 int missed_count)
4404 {
4405 priv->notif_missed_beacons = missed_count;
4406
4407 if (missed_count > priv->disassociate_threshold &&
4408 priv->status & STATUS_ASSOCIATED) {
4409 /* If associated and we've hit the missed
4410 * beacon threshold, disassociate, turn
4411 * off roaming, and abort any active scans */
4412 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4413 IPW_DL_STATE | IPW_DL_ASSOC,
4414 "Missed beacon: %d - disassociate\n", missed_count);
4415 priv->status &= ~STATUS_ROAMING;
4416 if (priv->status & STATUS_SCANNING) {
4417 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4418 IPW_DL_STATE,
4419 "Aborting scan with missed beacon.\n");
4420 schedule_work(&priv->abort_scan);
4421 }
4422
4423 schedule_work(&priv->disassociate);
4424 return;
4425 }
4426
4427 if (priv->status & STATUS_ROAMING) {
4428 /* If we are currently roaming, then just
4429 * print a debug statement... */
4430 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4431 "Missed beacon: %d - roam in progress\n",
4432 missed_count);
4433 return;
4434 }
4435
4436 if (roaming &&
4437 (missed_count > priv->roaming_threshold &&
4438 missed_count <= priv->disassociate_threshold)) {
4439 /* If we are not already roaming, set the ROAM
4440 * bit in the status and kick off a scan.
4441 * This can happen several times before we reach
4442 * disassociate_threshold. */
4443 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4444 "Missed beacon: %d - initiate "
4445 "roaming\n", missed_count);
4446 if (!(priv->status & STATUS_ROAMING)) {
4447 priv->status |= STATUS_ROAMING;
4448 if (!(priv->status & STATUS_SCANNING))
4449 schedule_delayed_work(&priv->request_scan, 0);
4450 }
4451 return;
4452 }
4453
4454 if (priv->status & STATUS_SCANNING &&
4455 missed_count > IPW_MB_SCAN_CANCEL_THRESHOLD) {
4456 /* Stop scan to keep fw from getting
4457 * stuck (only if we aren't roaming --
4458 * otherwise we'll never scan more than 2 or 3
4459 * channels..) */
4460 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE,
4461 "Aborting scan with missed beacon.\n");
4462 schedule_work(&priv->abort_scan);
4463 }
4464
4465 IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count);
4466 }
4467
4468 static void ipw_scan_event(struct work_struct *work)
4469 {
4470 union iwreq_data wrqu;
4471
4472 struct ipw_priv *priv =
4473 container_of(work, struct ipw_priv, scan_event.work);
4474
4475 wrqu.data.length = 0;
4476 wrqu.data.flags = 0;
4477 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
4478 }
4479
4480 static void handle_scan_event(struct ipw_priv *priv)
4481 {
4482 /* Only userspace-requested scan completion events go out immediately */
4483 if (!priv->user_requested_scan) {
4484 schedule_delayed_work(&priv->scan_event,
4485 round_jiffies_relative(msecs_to_jiffies(4000)));
4486 } else {
4487 priv->user_requested_scan = 0;
4488 mod_delayed_work(system_wq, &priv->scan_event, 0);
4489 }
4490 }
4491
4492 /**
4493 * Handle host notification packet.
4494 * Called from interrupt routine
4495 */
4496 static void ipw_rx_notification(struct ipw_priv *priv,
4497 struct ipw_rx_notification *notif)
4498 {
4499 u16 size = le16_to_cpu(notif->size);
4500
4501 IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, size);
4502
4503 switch (notif->subtype) {
4504 case HOST_NOTIFICATION_STATUS_ASSOCIATED:{
4505 struct notif_association *assoc = &notif->u.assoc;
4506
4507 switch (assoc->state) {
4508 case CMAS_ASSOCIATED:{
4509 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4510 IPW_DL_ASSOC,
4511 "associated: '%*pE' %pM\n",
4512 priv->essid_len, priv->essid,
4513 priv->bssid);
4514
4515 switch (priv->ieee->iw_mode) {
4516 case IW_MODE_INFRA:
4517 memcpy(priv->ieee->bssid,
4518 priv->bssid, ETH_ALEN);
4519 break;
4520
4521 case IW_MODE_ADHOC:
4522 memcpy(priv->ieee->bssid,
4523 priv->bssid, ETH_ALEN);
4524
4525 /* clear out the station table */
4526 priv->num_stations = 0;
4527
4528 IPW_DEBUG_ASSOC
4529 ("queueing adhoc check\n");
4530 schedule_delayed_work(
4531 &priv->adhoc_check,
4532 le16_to_cpu(priv->
4533 assoc_request.
4534 beacon_interval));
4535 break;
4536 }
4537
4538 priv->status &= ~STATUS_ASSOCIATING;
4539 priv->status |= STATUS_ASSOCIATED;
4540 schedule_work(&priv->system_config);
4541
4542 #ifdef CONFIG_IPW2200_QOS
4543 #define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \
4544 le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_control))
4545 if ((priv->status & STATUS_AUTH) &&
4546 (IPW_GET_PACKET_STYPE(&notif->u.raw)
4547 == IEEE80211_STYPE_ASSOC_RESP)) {
4548 if ((sizeof
4549 (struct
4550 libipw_assoc_response)
4551 <= size)
4552 && (size <= 2314)) {
4553 struct
4554 libipw_rx_stats
4555 stats = {
4556 .len = size - 1,
4557 };
4558
4559 IPW_DEBUG_QOS
4560 ("QoS Associate "
4561 "size %d\n", size);
4562 libipw_rx_mgt(priv->
4563 ieee,
4564 (struct
4565 libipw_hdr_4addr
4566 *)
4567 &notif->u.raw, &stats);
4568 }
4569 }
4570 #endif
4571
4572 schedule_work(&priv->link_up);
4573
4574 break;
4575 }
4576
4577 case CMAS_AUTHENTICATED:{
4578 if (priv->
4579 status & (STATUS_ASSOCIATED |
4580 STATUS_AUTH)) {
4581 struct notif_authenticate *auth
4582 = &notif->u.auth;
4583 IPW_DEBUG(IPW_DL_NOTIF |
4584 IPW_DL_STATE |
4585 IPW_DL_ASSOC,
4586 "deauthenticated: '%*pE' %pM: (0x%04X) - %s\n",
4587 priv->essid_len,
4588 priv->essid,
4589 priv->bssid,
4590 le16_to_cpu(auth->status),
4591 ipw_get_status_code
4592 (le16_to_cpu
4593 (auth->status)));
4594
4595 priv->status &=
4596 ~(STATUS_ASSOCIATING |
4597 STATUS_AUTH |
4598 STATUS_ASSOCIATED);
4599
4600 schedule_work(&priv->link_down);
4601 break;
4602 }
4603
4604 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4605 IPW_DL_ASSOC,
4606 "authenticated: '%*pE' %pM\n",
4607 priv->essid_len, priv->essid,
4608 priv->bssid);
4609 break;
4610 }
4611
4612 case CMAS_INIT:{
4613 if (priv->status & STATUS_AUTH) {
4614 struct
4615 libipw_assoc_response
4616 *resp;
4617 resp =
4618 (struct
4619 libipw_assoc_response
4620 *)&notif->u.raw;
4621 IPW_DEBUG(IPW_DL_NOTIF |
4622 IPW_DL_STATE |
4623 IPW_DL_ASSOC,
4624 "association failed (0x%04X): %s\n",
4625 le16_to_cpu(resp->status),
4626 ipw_get_status_code
4627 (le16_to_cpu
4628 (resp->status)));
4629 }
4630
4631 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4632 IPW_DL_ASSOC,
4633 "disassociated: '%*pE' %pM\n",
4634 priv->essid_len, priv->essid,
4635 priv->bssid);
4636
4637 priv->status &=
4638 ~(STATUS_DISASSOCIATING |
4639 STATUS_ASSOCIATING |
4640 STATUS_ASSOCIATED | STATUS_AUTH);
4641 if (priv->assoc_network
4642 && (priv->assoc_network->
4643 capability &
4644 WLAN_CAPABILITY_IBSS))
4645 ipw_remove_current_network
4646 (priv);
4647
4648 schedule_work(&priv->link_down);
4649
4650 break;
4651 }
4652
4653 case CMAS_RX_ASSOC_RESP:
4654 break;
4655
4656 default:
4657 IPW_ERROR("assoc: unknown (%d)\n",
4658 assoc->state);
4659 break;
4660 }
4661
4662 break;
4663 }
4664
4665 case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{
4666 struct notif_authenticate *auth = &notif->u.auth;
4667 switch (auth->state) {
4668 case CMAS_AUTHENTICATED:
4669 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4670 "authenticated: '%*pE' %pM\n",
4671 priv->essid_len, priv->essid,
4672 priv->bssid);
4673 priv->status |= STATUS_AUTH;
4674 break;
4675
4676 case CMAS_INIT:
4677 if (priv->status & STATUS_AUTH) {
4678 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4679 IPW_DL_ASSOC,
4680 "authentication failed (0x%04X): %s\n",
4681 le16_to_cpu(auth->status),
4682 ipw_get_status_code(le16_to_cpu
4683 (auth->
4684 status)));
4685 }
4686 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4687 IPW_DL_ASSOC,
4688 "deauthenticated: '%*pE' %pM\n",
4689 priv->essid_len, priv->essid,
4690 priv->bssid);
4691
4692 priv->status &= ~(STATUS_ASSOCIATING |
4693 STATUS_AUTH |
4694 STATUS_ASSOCIATED);
4695
4696 schedule_work(&priv->link_down);
4697 break;
4698
4699 case CMAS_TX_AUTH_SEQ_1:
4700 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4701 IPW_DL_ASSOC, "AUTH_SEQ_1\n");
4702 break;
4703 case CMAS_RX_AUTH_SEQ_2:
4704 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4705 IPW_DL_ASSOC, "AUTH_SEQ_2\n");
4706 break;
4707 case CMAS_AUTH_SEQ_1_PASS:
4708 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4709 IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n");
4710 break;
4711 case CMAS_AUTH_SEQ_1_FAIL:
4712 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4713 IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n");
4714 break;
4715 case CMAS_TX_AUTH_SEQ_3:
4716 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4717 IPW_DL_ASSOC, "AUTH_SEQ_3\n");
4718 break;
4719 case CMAS_RX_AUTH_SEQ_4:
4720 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4721 IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n");
4722 break;
4723 case CMAS_AUTH_SEQ_2_PASS:
4724 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4725 IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n");
4726 break;
4727 case CMAS_AUTH_SEQ_2_FAIL:
4728 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4729 IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n");
4730 break;
4731 case CMAS_TX_ASSOC:
4732 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4733 IPW_DL_ASSOC, "TX_ASSOC\n");
4734 break;
4735 case CMAS_RX_ASSOC_RESP:
4736 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4737 IPW_DL_ASSOC, "RX_ASSOC_RESP\n");
4738
4739 break;
4740 case CMAS_ASSOCIATED:
4741 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4742 IPW_DL_ASSOC, "ASSOCIATED\n");
4743 break;
4744 default:
4745 IPW_DEBUG_NOTIF("auth: failure - %d\n",
4746 auth->state);
4747 break;
4748 }
4749 break;
4750 }
4751
4752 case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{
4753 struct notif_channel_result *x =
4754 &notif->u.channel_result;
4755
4756 if (size == sizeof(*x)) {
4757 IPW_DEBUG_SCAN("Scan result for channel %d\n",
4758 x->channel_num);
4759 } else {
4760 IPW_DEBUG_SCAN("Scan result of wrong size %d "
4761 "(should be %zd)\n",
4762 size, sizeof(*x));
4763 }
4764 break;
4765 }
4766
4767 case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{
4768 struct notif_scan_complete *x = &notif->u.scan_complete;
4769 if (size == sizeof(*x)) {
4770 IPW_DEBUG_SCAN
4771 ("Scan completed: type %d, %d channels, "
4772 "%d status\n", x->scan_type,
4773 x->num_channels, x->status);
4774 } else {
4775 IPW_ERROR("Scan completed of wrong size %d "
4776 "(should be %zd)\n",
4777 size, sizeof(*x));
4778 }
4779
4780 priv->status &=
4781 ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
4782
4783 wake_up_interruptible(&priv->wait_state);
4784 cancel_delayed_work(&priv->scan_check);
4785
4786 if (priv->status & STATUS_EXIT_PENDING)
4787 break;
4788
4789 priv->ieee->scans++;
4790
4791 #ifdef CONFIG_IPW2200_MONITOR
4792 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
4793 priv->status |= STATUS_SCAN_FORCED;
4794 schedule_delayed_work(&priv->request_scan, 0);
4795 break;
4796 }
4797 priv->status &= ~STATUS_SCAN_FORCED;
4798 #endif /* CONFIG_IPW2200_MONITOR */
4799
4800 /* Do queued direct scans first */
4801 if (priv->status & STATUS_DIRECT_SCAN_PENDING)
4802 schedule_delayed_work(&priv->request_direct_scan, 0);
4803
4804 if (!(priv->status & (STATUS_ASSOCIATED |
4805 STATUS_ASSOCIATING |
4806 STATUS_ROAMING |
4807 STATUS_DISASSOCIATING)))
4808 schedule_work(&priv->associate);
4809 else if (priv->status & STATUS_ROAMING) {
4810 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4811 /* If a scan completed and we are in roam mode, then
4812 * the scan that completed was the one requested as a
4813 * result of entering roam... so, schedule the
4814 * roam work */
4815 schedule_work(&priv->roam);
4816 else
4817 /* Don't schedule if we aborted the scan */
4818 priv->status &= ~STATUS_ROAMING;
4819 } else if (priv->status & STATUS_SCAN_PENDING)
4820 schedule_delayed_work(&priv->request_scan, 0);
4821 else if (priv->config & CFG_BACKGROUND_SCAN
4822 && priv->status & STATUS_ASSOCIATED)
4823 schedule_delayed_work(&priv->request_scan,
4824 round_jiffies_relative(HZ));
4825
4826 /* Send an empty event to user space.
4827 * We don't send the received data on the event because
4828 * it would require us to do complex transcoding, and
4829 * we want to minimise the work done in the irq handler
4830 * Use a request to extract the data.
4831 * Also, we generate this even for any scan, regardless
4832 * on how the scan was initiated. User space can just
4833 * sync on periodic scan to get fresh data...
4834 * Jean II */
4835 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4836 handle_scan_event(priv);
4837 break;
4838 }
4839
4840 case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{
4841 struct notif_frag_length *x = &notif->u.frag_len;
4842
4843 if (size == sizeof(*x))
4844 IPW_ERROR("Frag length: %d\n",
4845 le16_to_cpu(x->frag_length));
4846 else
4847 IPW_ERROR("Frag length of wrong size %d "
4848 "(should be %zd)\n",
4849 size, sizeof(*x));
4850 break;
4851 }
4852
4853 case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{
4854 struct notif_link_deterioration *x =
4855 &notif->u.link_deterioration;
4856
4857 if (size == sizeof(*x)) {
4858 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4859 "link deterioration: type %d, cnt %d\n",
4860 x->silence_notification_type,
4861 x->silence_count);
4862 memcpy(&priv->last_link_deterioration, x,
4863 sizeof(*x));
4864 } else {
4865 IPW_ERROR("Link Deterioration of wrong size %d "
4866 "(should be %zd)\n",
4867 size, sizeof(*x));
4868 }
4869 break;
4870 }
4871
4872 case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{
4873 IPW_ERROR("Dino config\n");
4874 if (priv->hcmd
4875 && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG)
4876 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
4877
4878 break;
4879 }
4880
4881 case HOST_NOTIFICATION_STATUS_BEACON_STATE:{
4882 struct notif_beacon_state *x = &notif->u.beacon_state;
4883 if (size != sizeof(*x)) {
4884 IPW_ERROR
4885 ("Beacon state of wrong size %d (should "
4886 "be %zd)\n", size, sizeof(*x));
4887 break;
4888 }
4889
4890 if (le32_to_cpu(x->state) ==
4891 HOST_NOTIFICATION_STATUS_BEACON_MISSING)
4892 ipw_handle_missed_beacon(priv,
4893 le32_to_cpu(x->
4894 number));
4895
4896 break;
4897 }
4898
4899 case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{
4900 struct notif_tgi_tx_key *x = &notif->u.tgi_tx_key;
4901 if (size == sizeof(*x)) {
4902 IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
4903 "0x%02x station %d\n",
4904 x->key_state, x->security_type,
4905 x->station_index);
4906 break;
4907 }
4908
4909 IPW_ERROR
4910 ("TGi Tx Key of wrong size %d (should be %zd)\n",
4911 size, sizeof(*x));
4912 break;
4913 }
4914
4915 case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{
4916 struct notif_calibration *x = &notif->u.calibration;
4917
4918 if (size == sizeof(*x)) {
4919 memcpy(&priv->calib, x, sizeof(*x));
4920 IPW_DEBUG_INFO("TODO: Calibration\n");
4921 break;
4922 }
4923
4924 IPW_ERROR
4925 ("Calibration of wrong size %d (should be %zd)\n",
4926 size, sizeof(*x));
4927 break;
4928 }
4929
4930 case HOST_NOTIFICATION_NOISE_STATS:{
4931 if (size == sizeof(u32)) {
4932 priv->exp_avg_noise =
4933 exponential_average(priv->exp_avg_noise,
4934 (u8) (le32_to_cpu(notif->u.noise.value) & 0xff),
4935 DEPTH_NOISE);
4936 break;
4937 }
4938
4939 IPW_ERROR
4940 ("Noise stat is wrong size %d (should be %zd)\n",
4941 size, sizeof(u32));
4942 break;
4943 }
4944
4945 default:
4946 IPW_DEBUG_NOTIF("Unknown notification: "
4947 "subtype=%d,flags=0x%2x,size=%d\n",
4948 notif->subtype, notif->flags, size);
4949 }
4950 }
4951
4952 /**
4953 * Destroys all DMA structures and initialise them again
4954 *
4955 * @param priv
4956 * @return error code
4957 */
4958 static int ipw_queue_reset(struct ipw_priv *priv)
4959 {
4960 int rc = 0;
4961 /** @todo customize queue sizes */
4962 int nTx = 64, nTxCmd = 8;
4963 ipw_tx_queue_free(priv);
4964 /* Tx CMD queue */
4965 rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
4966 IPW_TX_CMD_QUEUE_READ_INDEX,
4967 IPW_TX_CMD_QUEUE_WRITE_INDEX,
4968 IPW_TX_CMD_QUEUE_BD_BASE,
4969 IPW_TX_CMD_QUEUE_BD_SIZE);
4970 if (rc) {
4971 IPW_ERROR("Tx Cmd queue init failed\n");
4972 goto error;
4973 }
4974 /* Tx queue(s) */
4975 rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
4976 IPW_TX_QUEUE_0_READ_INDEX,
4977 IPW_TX_QUEUE_0_WRITE_INDEX,
4978 IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE);
4979 if (rc) {
4980 IPW_ERROR("Tx 0 queue init failed\n");
4981 goto error;
4982 }
4983 rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
4984 IPW_TX_QUEUE_1_READ_INDEX,
4985 IPW_TX_QUEUE_1_WRITE_INDEX,
4986 IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE);
4987 if (rc) {
4988 IPW_ERROR("Tx 1 queue init failed\n");
4989 goto error;
4990 }
4991 rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
4992 IPW_TX_QUEUE_2_READ_INDEX,
4993 IPW_TX_QUEUE_2_WRITE_INDEX,
4994 IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE);
4995 if (rc) {
4996 IPW_ERROR("Tx 2 queue init failed\n");
4997 goto error;
4998 }
4999 rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
5000 IPW_TX_QUEUE_3_READ_INDEX,
5001 IPW_TX_QUEUE_3_WRITE_INDEX,
5002 IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE);
5003 if (rc) {
5004 IPW_ERROR("Tx 3 queue init failed\n");
5005 goto error;
5006 }
5007 /* statistics */
5008 priv->rx_bufs_min = 0;
5009 priv->rx_pend_max = 0;
5010 return rc;
5011
5012 error:
5013 ipw_tx_queue_free(priv);
5014 return rc;
5015 }
5016
5017 /**
5018 * Reclaim Tx queue entries no more used by NIC.
5019 *
5020 * When FW advances 'R' index, all entries between old and
5021 * new 'R' index need to be reclaimed. As result, some free space
5022 * forms. If there is enough free space (> low mark), wake Tx queue.
5023 *
5024 * @note Need to protect against garbage in 'R' index
5025 * @param priv
5026 * @param txq
5027 * @param qindex
5028 * @return Number of used entries remains in the queue
5029 */
5030 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
5031 struct clx2_tx_queue *txq, int qindex)
5032 {
5033 u32 hw_tail;
5034 int used;
5035 struct clx2_queue *q = &txq->q;
5036
5037 hw_tail = ipw_read32(priv, q->reg_r);
5038 if (hw_tail >= q->n_bd) {
5039 IPW_ERROR
5040 ("Read index for DMA queue (%d) is out of range [0-%d)\n",
5041 hw_tail, q->n_bd);
5042 goto done;
5043 }
5044 for (; q->last_used != hw_tail;
5045 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
5046 ipw_queue_tx_free_tfd(priv, txq);
5047 priv->tx_packets++;
5048 }
5049 done:
5050 if ((ipw_tx_queue_space(q) > q->low_mark) &&
5051 (qindex >= 0))
5052 netif_wake_queue(priv->net_dev);
5053 used = q->first_empty - q->last_used;
5054 if (used < 0)
5055 used += q->n_bd;
5056
5057 return used;
5058 }
5059
5060 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
5061 int len, int sync)
5062 {
5063 struct clx2_tx_queue *txq = &priv->txq_cmd;
5064 struct clx2_queue *q = &txq->q;
5065 struct tfd_frame *tfd;
5066
5067 if (ipw_tx_queue_space(q) < (sync ? 1 : 2)) {
5068 IPW_ERROR("No space for Tx\n");
5069 return -EBUSY;
5070 }
5071
5072 tfd = &txq->bd[q->first_empty];
5073 txq->txb[q->first_empty] = NULL;
5074
5075 memset(tfd, 0, sizeof(*tfd));
5076 tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
5077 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
5078 priv->hcmd_seq++;
5079 tfd->u.cmd.index = hcmd;
5080 tfd->u.cmd.length = len;
5081 memcpy(tfd->u.cmd.payload, buf, len);
5082 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
5083 ipw_write32(priv, q->reg_w, q->first_empty);
5084 _ipw_read32(priv, 0x90);
5085
5086 return 0;
5087 }
5088
5089 /*
5090 * Rx theory of operation
5091 *
5092 * The host allocates 32 DMA target addresses and passes the host address
5093 * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
5094 * 0 to 31
5095 *
5096 * Rx Queue Indexes
5097 * The host/firmware share two index registers for managing the Rx buffers.
5098 *
5099 * The READ index maps to the first position that the firmware may be writing
5100 * to -- the driver can read up to (but not including) this position and get
5101 * good data.
5102 * The READ index is managed by the firmware once the card is enabled.
5103 *
5104 * The WRITE index maps to the last position the driver has read from -- the
5105 * position preceding WRITE is the last slot the firmware can place a packet.
5106 *
5107 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
5108 * WRITE = READ.
5109 *
5110 * During initialization the host sets up the READ queue position to the first
5111 * INDEX position, and WRITE to the last (READ - 1 wrapped)
5112 *
5113 * When the firmware places a packet in a buffer it will advance the READ index
5114 * and fire the RX interrupt. The driver can then query the READ index and
5115 * process as many packets as possible, moving the WRITE index forward as it
5116 * resets the Rx queue buffers with new memory.
5117 *
5118 * The management in the driver is as follows:
5119 * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When
5120 * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
5121 * to replensish the ipw->rxq->rx_free.
5122 * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
5123 * ipw->rxq is replenished and the READ INDEX is updated (updating the
5124 * 'processed' and 'read' driver indexes as well)
5125 * + A received packet is processed and handed to the kernel network stack,
5126 * detached from the ipw->rxq. The driver 'processed' index is updated.
5127 * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
5128 * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
5129 * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there
5130 * were enough free buffers and RX_STALLED is set it is cleared.
5131 *
5132 *
5133 * Driver sequence:
5134 *
5135 * ipw_rx_queue_alloc() Allocates rx_free
5136 * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls
5137 * ipw_rx_queue_restock
5138 * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx
5139 * queue, updates firmware pointers, and updates
5140 * the WRITE index. If insufficient rx_free buffers
5141 * are available, schedules ipw_rx_queue_replenish
5142 *
5143 * -- enable interrupts --
5144 * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the
5145 * READ INDEX, detaching the SKB from the pool.
5146 * Moves the packet buffer from queue to rx_used.
5147 * Calls ipw_rx_queue_restock to refill any empty
5148 * slots.
5149 * ...
5150 *
5151 */
5152
5153 /*
5154 * If there are slots in the RX queue that need to be restocked,
5155 * and we have free pre-allocated buffers, fill the ranks as much
5156 * as we can pulling from rx_free.
5157 *
5158 * This moves the 'write' index forward to catch up with 'processed', and
5159 * also updates the memory address in the firmware to reference the new
5160 * target buffer.
5161 */
5162 static void ipw_rx_queue_restock(struct ipw_priv *priv)
5163 {
5164 struct ipw_rx_queue *rxq = priv->rxq;
5165 struct list_head *element;
5166 struct ipw_rx_mem_buffer *rxb;
5167 unsigned long flags;
5168 int write;
5169
5170 spin_lock_irqsave(&rxq->lock, flags);
5171 write = rxq->write;
5172 while ((ipw_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
5173 element = rxq->rx_free.next;
5174 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5175 list_del(element);
5176
5177 ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
5178 rxb->dma_addr);
5179 rxq->queue[rxq->write] = rxb;
5180 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
5181 rxq->free_count--;
5182 }
5183 spin_unlock_irqrestore(&rxq->lock, flags);
5184
5185 /* If the pre-allocated buffer pool is dropping low, schedule to
5186 * refill it */
5187 if (rxq->free_count <= RX_LOW_WATERMARK)
5188 schedule_work(&priv->rx_replenish);
5189
5190 /* If we've added more space for the firmware to place data, tell it */
5191 if (write != rxq->write)
5192 ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write);
5193 }
5194
5195 /*
5196 * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
5197 * Also restock the Rx queue via ipw_rx_queue_restock.
5198 *
5199 * This is called as a scheduled work item (except for during intialization)
5200 */
5201 static void ipw_rx_queue_replenish(void *data)
5202 {
5203 struct ipw_priv *priv = data;
5204 struct ipw_rx_queue *rxq = priv->rxq;
5205 struct list_head *element;
5206 struct ipw_rx_mem_buffer *rxb;
5207 unsigned long flags;
5208
5209 spin_lock_irqsave(&rxq->lock, flags);
5210 while (!list_empty(&rxq->rx_used)) {
5211 element = rxq->rx_used.next;
5212 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5213 rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC);
5214 if (!rxb->skb) {
5215 printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
5216 priv->net_dev->name);
5217 /* We don't reschedule replenish work here -- we will
5218 * call the restock method and if it still needs
5219 * more buffers it will schedule replenish */
5220 break;
5221 }
5222 list_del(element);
5223
5224 rxb->dma_addr =
5225 pci_map_single(priv->pci_dev, rxb->skb->data,
5226 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5227
5228 list_add_tail(&rxb->list, &rxq->rx_free);
5229 rxq->free_count++;
5230 }
5231 spin_unlock_irqrestore(&rxq->lock, flags);
5232
5233 ipw_rx_queue_restock(priv);
5234 }
5235
5236 static void ipw_bg_rx_queue_replenish(struct work_struct *work)
5237 {
5238 struct ipw_priv *priv =
5239 container_of(work, struct ipw_priv, rx_replenish);
5240 mutex_lock(&priv->mutex);
5241 ipw_rx_queue_replenish(priv);
5242 mutex_unlock(&priv->mutex);
5243 }
5244
5245 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
5246 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
5247 * This free routine walks the list of POOL entries and if SKB is set to
5248 * non NULL it is unmapped and freed
5249 */
5250 static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq)
5251 {
5252 int i;
5253
5254 if (!rxq)
5255 return;
5256
5257 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
5258 if (rxq->pool[i].skb != NULL) {
5259 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
5260 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5261 dev_kfree_skb(rxq->pool[i].skb);
5262 }
5263 }
5264
5265 kfree(rxq);
5266 }
5267
5268 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
5269 {
5270 struct ipw_rx_queue *rxq;
5271 int i;
5272
5273 rxq = kzalloc(sizeof(*rxq), GFP_KERNEL);
5274 if (unlikely(!rxq)) {
5275 IPW_ERROR("memory allocation failed\n");
5276 return NULL;
5277 }
5278 spin_lock_init(&rxq->lock);
5279 INIT_LIST_HEAD(&rxq->rx_free);
5280 INIT_LIST_HEAD(&rxq->rx_used);
5281
5282 /* Fill the rx_used queue with _all_ of the Rx buffers */
5283 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
5284 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
5285
5286 /* Set us so that we have processed and used all buffers, but have
5287 * not restocked the Rx queue with fresh buffers */
5288 rxq->read = rxq->write = 0;
5289 rxq->free_count = 0;
5290
5291 return rxq;
5292 }
5293
5294 static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
5295 {
5296 rate &= ~LIBIPW_BASIC_RATE_MASK;
5297 if (ieee_mode == IEEE_A) {
5298 switch (rate) {
5299 case LIBIPW_OFDM_RATE_6MB:
5300 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ?
5301 1 : 0;
5302 case LIBIPW_OFDM_RATE_9MB:
5303 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ?
5304 1 : 0;
5305 case LIBIPW_OFDM_RATE_12MB:
5306 return priv->
5307 rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0;
5308 case LIBIPW_OFDM_RATE_18MB:
5309 return priv->
5310 rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0;
5311 case LIBIPW_OFDM_RATE_24MB:
5312 return priv->
5313 rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0;
5314 case LIBIPW_OFDM_RATE_36MB:
5315 return priv->
5316 rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0;
5317 case LIBIPW_OFDM_RATE_48MB:
5318 return priv->
5319 rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0;
5320 case LIBIPW_OFDM_RATE_54MB:
5321 return priv->
5322 rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0;
5323 default:
5324 return 0;
5325 }
5326 }
5327
5328 /* B and G mixed */
5329 switch (rate) {
5330 case LIBIPW_CCK_RATE_1MB:
5331 return priv->rates_mask & LIBIPW_CCK_RATE_1MB_MASK ? 1 : 0;
5332 case LIBIPW_CCK_RATE_2MB:
5333 return priv->rates_mask & LIBIPW_CCK_RATE_2MB_MASK ? 1 : 0;
5334 case LIBIPW_CCK_RATE_5MB:
5335 return priv->rates_mask & LIBIPW_CCK_RATE_5MB_MASK ? 1 : 0;
5336 case LIBIPW_CCK_RATE_11MB:
5337 return priv->rates_mask & LIBIPW_CCK_RATE_11MB_MASK ? 1 : 0;
5338 }
5339
5340 /* If we are limited to B modulations, bail at this point */
5341 if (ieee_mode == IEEE_B)
5342 return 0;
5343
5344 /* G */
5345 switch (rate) {
5346 case LIBIPW_OFDM_RATE_6MB:
5347 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? 1 : 0;
5348 case LIBIPW_OFDM_RATE_9MB:
5349 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? 1 : 0;
5350 case LIBIPW_OFDM_RATE_12MB:
5351 return priv->rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0;
5352 case LIBIPW_OFDM_RATE_18MB:
5353 return priv->rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0;
5354 case LIBIPW_OFDM_RATE_24MB:
5355 return priv->rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0;
5356 case LIBIPW_OFDM_RATE_36MB:
5357 return priv->rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0;
5358 case LIBIPW_OFDM_RATE_48MB:
5359 return priv->rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0;
5360 case LIBIPW_OFDM_RATE_54MB:
5361 return priv->rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0;
5362 }
5363
5364 return 0;
5365 }
5366
5367 static int ipw_compatible_rates(struct ipw_priv *priv,
5368 const struct libipw_network *network,
5369 struct ipw_supported_rates *rates)
5370 {
5371 int num_rates, i;
5372
5373 memset(rates, 0, sizeof(*rates));
5374 num_rates = min(network->rates_len, (u8) IPW_MAX_RATES);
5375 rates->num_rates = 0;
5376 for (i = 0; i < num_rates; i++) {
5377 if (!ipw_is_rate_in_mask(priv, network->mode,
5378 network->rates[i])) {
5379
5380 if (network->rates[i] & LIBIPW_BASIC_RATE_MASK) {
5381 IPW_DEBUG_SCAN("Adding masked mandatory "
5382 "rate %02X\n",
5383 network->rates[i]);
5384 rates->supported_rates[rates->num_rates++] =
5385 network->rates[i];
5386 continue;
5387 }
5388
5389 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5390 network->rates[i], priv->rates_mask);
5391 continue;
5392 }
5393
5394 rates->supported_rates[rates->num_rates++] = network->rates[i];
5395 }
5396
5397 num_rates = min(network->rates_ex_len,
5398 (u8) (IPW_MAX_RATES - num_rates));
5399 for (i = 0; i < num_rates; i++) {
5400 if (!ipw_is_rate_in_mask(priv, network->mode,
5401 network->rates_ex[i])) {
5402 if (network->rates_ex[i] & LIBIPW_BASIC_RATE_MASK) {
5403 IPW_DEBUG_SCAN("Adding masked mandatory "
5404 "rate %02X\n",
5405 network->rates_ex[i]);
5406 rates->supported_rates[rates->num_rates++] =
5407 network->rates[i];
5408 continue;
5409 }
5410
5411 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5412 network->rates_ex[i], priv->rates_mask);
5413 continue;
5414 }
5415
5416 rates->supported_rates[rates->num_rates++] =
5417 network->rates_ex[i];
5418 }
5419
5420 return 1;
5421 }
5422
5423 static void ipw_copy_rates(struct ipw_supported_rates *dest,
5424 const struct ipw_supported_rates *src)
5425 {
5426 u8 i;
5427 for (i = 0; i < src->num_rates; i++)
5428 dest->supported_rates[i] = src->supported_rates[i];
5429 dest->num_rates = src->num_rates;
5430 }
5431
5432 /* TODO: Look at sniffed packets in the air to determine if the basic rate
5433 * mask should ever be used -- right now all callers to add the scan rates are
5434 * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
5435 static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
5436 u8 modulation, u32 rate_mask)
5437 {
5438 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ?
5439 LIBIPW_BASIC_RATE_MASK : 0;
5440
5441 if (rate_mask & LIBIPW_CCK_RATE_1MB_MASK)
5442 rates->supported_rates[rates->num_rates++] =
5443 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_1MB;
5444
5445 if (rate_mask & LIBIPW_CCK_RATE_2MB_MASK)
5446 rates->supported_rates[rates->num_rates++] =
5447 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_2MB;
5448
5449 if (rate_mask & LIBIPW_CCK_RATE_5MB_MASK)
5450 rates->supported_rates[rates->num_rates++] = basic_mask |
5451 LIBIPW_CCK_RATE_5MB;
5452
5453 if (rate_mask & LIBIPW_CCK_RATE_11MB_MASK)
5454 rates->supported_rates[rates->num_rates++] = basic_mask |
5455 LIBIPW_CCK_RATE_11MB;
5456 }
5457
5458 static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
5459 u8 modulation, u32 rate_mask)
5460 {
5461 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ?
5462 LIBIPW_BASIC_RATE_MASK : 0;
5463
5464 if (rate_mask & LIBIPW_OFDM_RATE_6MB_MASK)
5465 rates->supported_rates[rates->num_rates++] = basic_mask |
5466 LIBIPW_OFDM_RATE_6MB;
5467
5468 if (rate_mask & LIBIPW_OFDM_RATE_9MB_MASK)
5469 rates->supported_rates[rates->num_rates++] =
5470 LIBIPW_OFDM_RATE_9MB;
5471
5472 if (rate_mask & LIBIPW_OFDM_RATE_12MB_MASK)
5473 rates->supported_rates[rates->num_rates++] = basic_mask |
5474 LIBIPW_OFDM_RATE_12MB;
5475
5476 if (rate_mask & LIBIPW_OFDM_RATE_18MB_MASK)
5477 rates->supported_rates[rates->num_rates++] =
5478 LIBIPW_OFDM_RATE_18MB;
5479
5480 if (rate_mask & LIBIPW_OFDM_RATE_24MB_MASK)
5481 rates->supported_rates[rates->num_rates++] = basic_mask |
5482 LIBIPW_OFDM_RATE_24MB;
5483
5484 if (rate_mask & LIBIPW_OFDM_RATE_36MB_MASK)
5485 rates->supported_rates[rates->num_rates++] =
5486 LIBIPW_OFDM_RATE_36MB;
5487
5488 if (rate_mask & LIBIPW_OFDM_RATE_48MB_MASK)
5489 rates->supported_rates[rates->num_rates++] =
5490 LIBIPW_OFDM_RATE_48MB;
5491
5492 if (rate_mask & LIBIPW_OFDM_RATE_54MB_MASK)
5493 rates->supported_rates[rates->num_rates++] =
5494 LIBIPW_OFDM_RATE_54MB;
5495 }
5496
5497 struct ipw_network_match {
5498 struct libipw_network *network;
5499 struct ipw_supported_rates rates;
5500 };
5501
5502 static int ipw_find_adhoc_network(struct ipw_priv *priv,
5503 struct ipw_network_match *match,
5504 struct libipw_network *network,
5505 int roaming)
5506 {
5507 struct ipw_supported_rates rates;
5508
5509 /* Verify that this network's capability is compatible with the
5510 * current mode (AdHoc or Infrastructure) */
5511 if ((priv->ieee->iw_mode == IW_MODE_ADHOC &&
5512 !(network->capability & WLAN_CAPABILITY_IBSS))) {
5513 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded due to capability mismatch.\n",
5514 network->ssid_len, network->ssid,
5515 network->bssid);
5516 return 0;
5517 }
5518
5519 if (unlikely(roaming)) {
5520 /* If we are roaming, then ensure check if this is a valid
5521 * network to try and roam to */
5522 if ((network->ssid_len != match->network->ssid_len) ||
5523 memcmp(network->ssid, match->network->ssid,
5524 network->ssid_len)) {
5525 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of non-network ESSID.\n",
5526 network->ssid_len, network->ssid,
5527 network->bssid);
5528 return 0;
5529 }
5530 } else {
5531 /* If an ESSID has been configured then compare the broadcast
5532 * ESSID to ours */
5533 if ((priv->config & CFG_STATIC_ESSID) &&
5534 ((network->ssid_len != priv->essid_len) ||
5535 memcmp(network->ssid, priv->essid,
5536 min(network->ssid_len, priv->essid_len)))) {
5537 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n",
5538 network->ssid_len, network->ssid,
5539 network->bssid, priv->essid_len,
5540 priv->essid);
5541 return 0;
5542 }
5543 }
5544
5545 /* If the old network rate is better than this one, don't bother
5546 * testing everything else. */
5547
5548 if (network->time_stamp[0] < match->network->time_stamp[0]) {
5549 IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n",
5550 match->network->ssid_len, match->network->ssid);
5551 return 0;
5552 } else if (network->time_stamp[1] < match->network->time_stamp[1]) {
5553 IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n",
5554 match->network->ssid_len, match->network->ssid);
5555 return 0;
5556 }
5557
5558 /* Now go through and see if the requested network is valid... */
5559 if (priv->ieee->scan_age != 0 &&
5560 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5561 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of age: %ums.\n",
5562 network->ssid_len, network->ssid,
5563 network->bssid,
5564 jiffies_to_msecs(jiffies -
5565 network->last_scanned));
5566 return 0;
5567 }
5568
5569 if ((priv->config & CFG_STATIC_CHANNEL) &&
5570 (network->channel != priv->channel)) {
5571 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n",
5572 network->ssid_len, network->ssid,
5573 network->bssid,
5574 network->channel, priv->channel);
5575 return 0;
5576 }
5577
5578 /* Verify privacy compatibility */
5579 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5580 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5581 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n",
5582 network->ssid_len, network->ssid,
5583 network->bssid,
5584 priv->
5585 capability & CAP_PRIVACY_ON ? "on" : "off",
5586 network->
5587 capability & WLAN_CAPABILITY_PRIVACY ? "on" :
5588 "off");
5589 return 0;
5590 }
5591
5592 if (ether_addr_equal(network->bssid, priv->bssid)) {
5593 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of the same BSSID match: %pM.\n",
5594 network->ssid_len, network->ssid,
5595 network->bssid, priv->bssid);
5596 return 0;
5597 }
5598
5599 /* Filter out any incompatible freq / mode combinations */
5600 if (!libipw_is_valid_mode(priv->ieee, network->mode)) {
5601 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n",
5602 network->ssid_len, network->ssid,
5603 network->bssid);
5604 return 0;
5605 }
5606
5607 /* Ensure that the rates supported by the driver are compatible with
5608 * this AP, including verification of basic rates (mandatory) */
5609 if (!ipw_compatible_rates(priv, network, &rates)) {
5610 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n",
5611 network->ssid_len, network->ssid,
5612 network->bssid);
5613 return 0;
5614 }
5615
5616 if (rates.num_rates == 0) {
5617 IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of no compatible rates.\n",
5618 network->ssid_len, network->ssid,
5619 network->bssid);
5620 return 0;
5621 }
5622
5623 /* TODO: Perform any further minimal comparititive tests. We do not
5624 * want to put too much policy logic here; intelligent scan selection
5625 * should occur within a generic IEEE 802.11 user space tool. */
5626
5627 /* Set up 'new' AP to this network */
5628 ipw_copy_rates(&match->rates, &rates);
5629 match->network = network;
5630 IPW_DEBUG_MERGE("Network '%*pE (%pM)' is a viable match.\n",
5631 network->ssid_len, network->ssid, network->bssid);
5632
5633 return 1;
5634 }
5635
5636 static void ipw_merge_adhoc_network(struct work_struct *work)
5637 {
5638 struct ipw_priv *priv =
5639 container_of(work, struct ipw_priv, merge_networks);
5640 struct libipw_network *network = NULL;
5641 struct ipw_network_match match = {
5642 .network = priv->assoc_network
5643 };
5644
5645 if ((priv->status & STATUS_ASSOCIATED) &&
5646 (priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5647 /* First pass through ROAM process -- look for a better
5648 * network */
5649 unsigned long flags;
5650
5651 spin_lock_irqsave(&priv->ieee->lock, flags);
5652 list_for_each_entry(network, &priv->ieee->network_list, list) {
5653 if (network != priv->assoc_network)
5654 ipw_find_adhoc_network(priv, &match, network,
5655 1);
5656 }
5657 spin_unlock_irqrestore(&priv->ieee->lock, flags);
5658
5659 if (match.network == priv->assoc_network) {
5660 IPW_DEBUG_MERGE("No better ADHOC in this network to "
5661 "merge to.\n");
5662 return;
5663 }
5664
5665 mutex_lock(&priv->mutex);
5666 if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5667 IPW_DEBUG_MERGE("remove network %*pE\n",
5668 priv->essid_len, priv->essid);
5669 ipw_remove_current_network(priv);
5670 }
5671
5672 ipw_disassociate(priv);
5673 priv->assoc_network = match.network;
5674 mutex_unlock(&priv->mutex);
5675 return;
5676 }
5677 }
5678
5679 static int ipw_best_network(struct ipw_priv *priv,
5680 struct ipw_network_match *match,
5681 struct libipw_network *network, int roaming)
5682 {
5683 struct ipw_supported_rates rates;
5684
5685 /* Verify that this network's capability is compatible with the
5686 * current mode (AdHoc or Infrastructure) */
5687 if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
5688 !(network->capability & WLAN_CAPABILITY_ESS)) ||
5689 (priv->ieee->iw_mode == IW_MODE_ADHOC &&
5690 !(network->capability & WLAN_CAPABILITY_IBSS))) {
5691 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded due to capability mismatch.\n",
5692 network->ssid_len, network->ssid,
5693 network->bssid);
5694 return 0;
5695 }
5696
5697 if (unlikely(roaming)) {
5698 /* If we are roaming, then ensure check if this is a valid
5699 * network to try and roam to */
5700 if ((network->ssid_len != match->network->ssid_len) ||
5701 memcmp(network->ssid, match->network->ssid,
5702 network->ssid_len)) {
5703 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of non-network ESSID.\n",
5704 network->ssid_len, network->ssid,
5705 network->bssid);
5706 return 0;
5707 }
5708 } else {
5709 /* If an ESSID has been configured then compare the broadcast
5710 * ESSID to ours */
5711 if ((priv->config & CFG_STATIC_ESSID) &&
5712 ((network->ssid_len != priv->essid_len) ||
5713 memcmp(network->ssid, priv->essid,
5714 min(network->ssid_len, priv->essid_len)))) {
5715 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n",
5716 network->ssid_len, network->ssid,
5717 network->bssid, priv->essid_len,
5718 priv->essid);
5719 return 0;
5720 }
5721 }
5722
5723 /* If the old network rate is better than this one, don't bother
5724 * testing everything else. */
5725 if (match->network && match->network->stats.rssi > network->stats.rssi) {
5726 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because '%*pE (%pM)' has a stronger signal.\n",
5727 network->ssid_len, network->ssid,
5728 network->bssid, match->network->ssid_len,
5729 match->network->ssid, match->network->bssid);
5730 return 0;
5731 }
5732
5733 /* If this network has already had an association attempt within the
5734 * last 3 seconds, do not try and associate again... */
5735 if (network->last_associate &&
5736 time_after(network->last_associate + (HZ * 3UL), jiffies)) {
5737 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of storming (%ums since last assoc attempt).\n",
5738 network->ssid_len, network->ssid,
5739 network->bssid,
5740 jiffies_to_msecs(jiffies -
5741 network->last_associate));
5742 return 0;
5743 }
5744
5745 /* Now go through and see if the requested network is valid... */
5746 if (priv->ieee->scan_age != 0 &&
5747 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5748 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of age: %ums.\n",
5749 network->ssid_len, network->ssid,
5750 network->bssid,
5751 jiffies_to_msecs(jiffies -
5752 network->last_scanned));
5753 return 0;
5754 }
5755
5756 if ((priv->config & CFG_STATIC_CHANNEL) &&
5757 (network->channel != priv->channel)) {
5758 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n",
5759 network->ssid_len, network->ssid,
5760 network->bssid,
5761 network->channel, priv->channel);
5762 return 0;
5763 }
5764
5765 /* Verify privacy compatibility */
5766 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5767 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5768 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n",
5769 network->ssid_len, network->ssid,
5770 network->bssid,
5771 priv->capability & CAP_PRIVACY_ON ? "on" :
5772 "off",
5773 network->capability &
5774 WLAN_CAPABILITY_PRIVACY ? "on" : "off");
5775 return 0;
5776 }
5777
5778 if ((priv->config & CFG_STATIC_BSSID) &&
5779 !ether_addr_equal(network->bssid, priv->bssid)) {
5780 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of BSSID mismatch: %pM.\n",
5781 network->ssid_len, network->ssid,
5782 network->bssid, priv->bssid);
5783 return 0;
5784 }
5785
5786 /* Filter out any incompatible freq / mode combinations */
5787 if (!libipw_is_valid_mode(priv->ieee, network->mode)) {
5788 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n",
5789 network->ssid_len, network->ssid,
5790 network->bssid);
5791 return 0;
5792 }
5793
5794 /* Filter out invalid channel in current GEO */
5795 if (!libipw_is_valid_channel(priv->ieee, network->channel)) {
5796 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid channel in current GEO\n",
5797 network->ssid_len, network->ssid,
5798 network->bssid);
5799 return 0;
5800 }
5801
5802 /* Ensure that the rates supported by the driver are compatible with
5803 * this AP, including verification of basic rates (mandatory) */
5804 if (!ipw_compatible_rates(priv, network, &rates)) {
5805 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n",
5806 network->ssid_len, network->ssid,
5807 network->bssid);
5808 return 0;
5809 }
5810
5811 if (rates.num_rates == 0) {
5812 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of no compatible rates.\n",
5813 network->ssid_len, network->ssid,
5814 network->bssid);
5815 return 0;
5816 }
5817
5818 /* TODO: Perform any further minimal comparititive tests. We do not
5819 * want to put too much policy logic here; intelligent scan selection
5820 * should occur within a generic IEEE 802.11 user space tool. */
5821
5822 /* Set up 'new' AP to this network */
5823 ipw_copy_rates(&match->rates, &rates);
5824 match->network = network;
5825
5826 IPW_DEBUG_ASSOC("Network '%*pE (%pM)' is a viable match.\n",
5827 network->ssid_len, network->ssid, network->bssid);
5828
5829 return 1;
5830 }
5831
5832 static void ipw_adhoc_create(struct ipw_priv *priv,
5833 struct libipw_network *network)
5834 {
5835 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
5836 int i;
5837
5838 /*
5839 * For the purposes of scanning, we can set our wireless mode
5840 * to trigger scans across combinations of bands, but when it
5841 * comes to creating a new ad-hoc network, we have tell the FW
5842 * exactly which band to use.
5843 *
5844 * We also have the possibility of an invalid channel for the
5845 * chossen band. Attempting to create a new ad-hoc network
5846 * with an invalid channel for wireless mode will trigger a
5847 * FW fatal error.
5848 *
5849 */
5850 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
5851 case LIBIPW_52GHZ_BAND:
5852 network->mode = IEEE_A;
5853 i = libipw_channel_to_index(priv->ieee, priv->channel);
5854 BUG_ON(i == -1);
5855 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) {
5856 IPW_WARNING("Overriding invalid channel\n");
5857 priv->channel = geo->a[0].channel;
5858 }
5859 break;
5860
5861 case LIBIPW_24GHZ_BAND:
5862 if (priv->ieee->mode & IEEE_G)
5863 network->mode = IEEE_G;
5864 else
5865 network->mode = IEEE_B;
5866 i = libipw_channel_to_index(priv->ieee, priv->channel);
5867 BUG_ON(i == -1);
5868 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) {
5869 IPW_WARNING("Overriding invalid channel\n");
5870 priv->channel = geo->bg[0].channel;
5871 }
5872 break;
5873
5874 default:
5875 IPW_WARNING("Overriding invalid channel\n");
5876 if (priv->ieee->mode & IEEE_A) {
5877 network->mode = IEEE_A;
5878 priv->channel = geo->a[0].channel;
5879 } else if (priv->ieee->mode & IEEE_G) {
5880 network->mode = IEEE_G;
5881 priv->channel = geo->bg[0].channel;
5882 } else {
5883 network->mode = IEEE_B;
5884 priv->channel = geo->bg[0].channel;
5885 }
5886 break;
5887 }
5888
5889 network->channel = priv->channel;
5890 priv->config |= CFG_ADHOC_PERSIST;
5891 ipw_create_bssid(priv, network->bssid);
5892 network->ssid_len = priv->essid_len;
5893 memcpy(network->ssid, priv->essid, priv->essid_len);
5894 memset(&network->stats, 0, sizeof(network->stats));
5895 network->capability = WLAN_CAPABILITY_IBSS;
5896 if (!(priv->config & CFG_PREAMBLE_LONG))
5897 network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
5898 if (priv->capability & CAP_PRIVACY_ON)
5899 network->capability |= WLAN_CAPABILITY_PRIVACY;
5900 network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
5901 memcpy(network->rates, priv->rates.supported_rates, network->rates_len);
5902 network->rates_ex_len = priv->rates.num_rates - network->rates_len;
5903 memcpy(network->rates_ex,
5904 &priv->rates.supported_rates[network->rates_len],
5905 network->rates_ex_len);
5906 network->last_scanned = 0;
5907 network->flags = 0;
5908 network->last_associate = 0;
5909 network->time_stamp[0] = 0;
5910 network->time_stamp[1] = 0;
5911 network->beacon_interval = 100; /* Default */
5912 network->listen_interval = 10; /* Default */
5913 network->atim_window = 0; /* Default */
5914 network->wpa_ie_len = 0;
5915 network->rsn_ie_len = 0;
5916 }
5917
5918 static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index)
5919 {
5920 struct ipw_tgi_tx_key key;
5921
5922 if (!(priv->ieee->sec.flags & (1 << index)))
5923 return;
5924
5925 key.key_id = index;
5926 memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH);
5927 key.security_type = type;
5928 key.station_index = 0; /* always 0 for BSS */
5929 key.flags = 0;
5930 /* 0 for new key; previous value of counter (after fatal error) */
5931 key.tx_counter[0] = cpu_to_le32(0);
5932 key.tx_counter[1] = cpu_to_le32(0);
5933
5934 ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key);
5935 }
5936
5937 static void ipw_send_wep_keys(struct ipw_priv *priv, int type)
5938 {
5939 struct ipw_wep_key key;
5940 int i;
5941
5942 key.cmd_id = DINO_CMD_WEP_KEY;
5943 key.seq_num = 0;
5944
5945 /* Note: AES keys cannot be set for multiple times.
5946 * Only set it at the first time. */
5947 for (i = 0; i < 4; i++) {
5948 key.key_index = i | type;
5949 if (!(priv->ieee->sec.flags & (1 << i))) {
5950 key.key_size = 0;
5951 continue;
5952 }
5953
5954 key.key_size = priv->ieee->sec.key_sizes[i];
5955 memcpy(key.key, priv->ieee->sec.keys[i], key.key_size);
5956
5957 ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key);
5958 }
5959 }
5960
5961 static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level)
5962 {
5963 if (priv->ieee->host_encrypt)
5964 return;
5965
5966 switch (level) {
5967 case SEC_LEVEL_3:
5968 priv->sys_config.disable_unicast_decryption = 0;
5969 priv->ieee->host_decrypt = 0;
5970 break;
5971 case SEC_LEVEL_2:
5972 priv->sys_config.disable_unicast_decryption = 1;
5973 priv->ieee->host_decrypt = 1;
5974 break;
5975 case SEC_LEVEL_1:
5976 priv->sys_config.disable_unicast_decryption = 0;
5977 priv->ieee->host_decrypt = 0;
5978 break;
5979 case SEC_LEVEL_0:
5980 priv->sys_config.disable_unicast_decryption = 1;
5981 break;
5982 default:
5983 break;
5984 }
5985 }
5986
5987 static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level)
5988 {
5989 if (priv->ieee->host_encrypt)
5990 return;
5991
5992 switch (level) {
5993 case SEC_LEVEL_3:
5994 priv->sys_config.disable_multicast_decryption = 0;
5995 break;
5996 case SEC_LEVEL_2:
5997 priv->sys_config.disable_multicast_decryption = 1;
5998 break;
5999 case SEC_LEVEL_1:
6000 priv->sys_config.disable_multicast_decryption = 0;
6001 break;
6002 case SEC_LEVEL_0:
6003 priv->sys_config.disable_multicast_decryption = 1;
6004 break;
6005 default:
6006 break;
6007 }
6008 }
6009
6010 static void ipw_set_hwcrypto_keys(struct ipw_priv *priv)
6011 {
6012 switch (priv->ieee->sec.level) {
6013 case SEC_LEVEL_3:
6014 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
6015 ipw_send_tgi_tx_key(priv,
6016 DCT_FLAG_EXT_SECURITY_CCM,
6017 priv->ieee->sec.active_key);
6018
6019 if (!priv->ieee->host_mc_decrypt)
6020 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM);
6021 break;
6022 case SEC_LEVEL_2:
6023 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
6024 ipw_send_tgi_tx_key(priv,
6025 DCT_FLAG_EXT_SECURITY_TKIP,
6026 priv->ieee->sec.active_key);
6027 break;
6028 case SEC_LEVEL_1:
6029 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
6030 ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level);
6031 ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level);
6032 break;
6033 case SEC_LEVEL_0:
6034 default:
6035 break;
6036 }
6037 }
6038
6039 static void ipw_adhoc_check(void *data)
6040 {
6041 struct ipw_priv *priv = data;
6042
6043 if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold &&
6044 !(priv->config & CFG_ADHOC_PERSIST)) {
6045 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
6046 IPW_DL_STATE | IPW_DL_ASSOC,
6047 "Missed beacon: %d - disassociate\n",
6048 priv->missed_adhoc_beacons);
6049 ipw_remove_current_network(priv);
6050 ipw_disassociate(priv);
6051 return;
6052 }
6053
6054 schedule_delayed_work(&priv->adhoc_check,
6055 le16_to_cpu(priv->assoc_request.beacon_interval));
6056 }
6057
6058 static void ipw_bg_adhoc_check(struct work_struct *work)
6059 {
6060 struct ipw_priv *priv =
6061 container_of(work, struct ipw_priv, adhoc_check.work);
6062 mutex_lock(&priv->mutex);
6063 ipw_adhoc_check(priv);
6064 mutex_unlock(&priv->mutex);
6065 }
6066
6067 static void ipw_debug_config(struct ipw_priv *priv)
6068 {
6069 IPW_DEBUG_INFO("Scan completed, no valid APs matched "
6070 "[CFG 0x%08X]\n", priv->config);
6071 if (priv->config & CFG_STATIC_CHANNEL)
6072 IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel);
6073 else
6074 IPW_DEBUG_INFO("Channel unlocked.\n");
6075 if (priv->config & CFG_STATIC_ESSID)
6076 IPW_DEBUG_INFO("ESSID locked to '%*pE'\n",
6077 priv->essid_len, priv->essid);
6078 else
6079 IPW_DEBUG_INFO("ESSID unlocked.\n");
6080 if (priv->config & CFG_STATIC_BSSID)
6081 IPW_DEBUG_INFO("BSSID locked to %pM\n", priv->bssid);
6082 else
6083 IPW_DEBUG_INFO("BSSID unlocked.\n");
6084 if (priv->capability & CAP_PRIVACY_ON)
6085 IPW_DEBUG_INFO("PRIVACY on\n");
6086 else
6087 IPW_DEBUG_INFO("PRIVACY off\n");
6088 IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
6089 }
6090
6091 static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode)
6092 {
6093 /* TODO: Verify that this works... */
6094 struct ipw_fixed_rate fr;
6095 u32 reg;
6096 u16 mask = 0;
6097 u16 new_tx_rates = priv->rates_mask;
6098
6099 /* Identify 'current FW band' and match it with the fixed
6100 * Tx rates */
6101
6102 switch (priv->ieee->freq_band) {
6103 case LIBIPW_52GHZ_BAND: /* A only */
6104 /* IEEE_A */
6105 if (priv->rates_mask & ~LIBIPW_OFDM_RATES_MASK) {
6106 /* Invalid fixed rate mask */
6107 IPW_DEBUG_WX
6108 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6109 new_tx_rates = 0;
6110 break;
6111 }
6112
6113 new_tx_rates >>= LIBIPW_OFDM_SHIFT_MASK_A;
6114 break;
6115
6116 default: /* 2.4Ghz or Mixed */
6117 /* IEEE_B */
6118 if (mode == IEEE_B) {
6119 if (new_tx_rates & ~LIBIPW_CCK_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 }
6125 break;
6126 }
6127
6128 /* IEEE_G */
6129 if (new_tx_rates & ~(LIBIPW_CCK_RATES_MASK |
6130 LIBIPW_OFDM_RATES_MASK)) {
6131 /* Invalid fixed rate mask */
6132 IPW_DEBUG_WX
6133 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6134 new_tx_rates = 0;
6135 break;
6136 }
6137
6138 if (LIBIPW_OFDM_RATE_6MB_MASK & new_tx_rates) {
6139 mask |= (LIBIPW_OFDM_RATE_6MB_MASK >> 1);
6140 new_tx_rates &= ~LIBIPW_OFDM_RATE_6MB_MASK;
6141 }
6142
6143 if (LIBIPW_OFDM_RATE_9MB_MASK & new_tx_rates) {
6144 mask |= (LIBIPW_OFDM_RATE_9MB_MASK >> 1);
6145 new_tx_rates &= ~LIBIPW_OFDM_RATE_9MB_MASK;
6146 }
6147
6148 if (LIBIPW_OFDM_RATE_12MB_MASK & new_tx_rates) {
6149 mask |= (LIBIPW_OFDM_RATE_12MB_MASK >> 1);
6150 new_tx_rates &= ~LIBIPW_OFDM_RATE_12MB_MASK;
6151 }
6152
6153 new_tx_rates |= mask;
6154 break;
6155 }
6156
6157 fr.tx_rates = cpu_to_le16(new_tx_rates);
6158
6159 reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
6160 ipw_write_reg32(priv, reg, *(u32 *) & fr);
6161 }
6162
6163 static void ipw_abort_scan(struct ipw_priv *priv)
6164 {
6165 int err;
6166
6167 if (priv->status & STATUS_SCAN_ABORTING) {
6168 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
6169 return;
6170 }
6171 priv->status |= STATUS_SCAN_ABORTING;
6172
6173 err = ipw_send_scan_abort(priv);
6174 if (err)
6175 IPW_DEBUG_HC("Request to abort scan failed.\n");
6176 }
6177
6178 static void ipw_add_scan_channels(struct ipw_priv *priv,
6179 struct ipw_scan_request_ext *scan,
6180 int scan_type)
6181 {
6182 int channel_index = 0;
6183 const struct libipw_geo *geo;
6184 int i;
6185
6186 geo = libipw_get_geo(priv->ieee);
6187
6188 if (priv->ieee->freq_band & LIBIPW_52GHZ_BAND) {
6189 int start = channel_index;
6190 for (i = 0; i < geo->a_channels; i++) {
6191 if ((priv->status & STATUS_ASSOCIATED) &&
6192 geo->a[i].channel == priv->channel)
6193 continue;
6194 channel_index++;
6195 scan->channels_list[channel_index] = geo->a[i].channel;
6196 ipw_set_scan_type(scan, channel_index,
6197 geo->a[i].
6198 flags & LIBIPW_CH_PASSIVE_ONLY ?
6199 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN :
6200 scan_type);
6201 }
6202
6203 if (start != channel_index) {
6204 scan->channels_list[start] = (u8) (IPW_A_MODE << 6) |
6205 (channel_index - start);
6206 channel_index++;
6207 }
6208 }
6209
6210 if (priv->ieee->freq_band & LIBIPW_24GHZ_BAND) {
6211 int start = channel_index;
6212 if (priv->config & CFG_SPEED_SCAN) {
6213 int index;
6214 u8 channels[LIBIPW_24GHZ_CHANNELS] = {
6215 /* nop out the list */
6216 [0] = 0
6217 };
6218
6219 u8 channel;
6220 while (channel_index < IPW_SCAN_CHANNELS - 1) {
6221 channel =
6222 priv->speed_scan[priv->speed_scan_pos];
6223 if (channel == 0) {
6224 priv->speed_scan_pos = 0;
6225 channel = priv->speed_scan[0];
6226 }
6227 if ((priv->status & STATUS_ASSOCIATED) &&
6228 channel == priv->channel) {
6229 priv->speed_scan_pos++;
6230 continue;
6231 }
6232
6233 /* If this channel has already been
6234 * added in scan, break from loop
6235 * and this will be the first channel
6236 * in the next scan.
6237 */
6238 if (channels[channel - 1] != 0)
6239 break;
6240
6241 channels[channel - 1] = 1;
6242 priv->speed_scan_pos++;
6243 channel_index++;
6244 scan->channels_list[channel_index] = channel;
6245 index =
6246 libipw_channel_to_index(priv->ieee, channel);
6247 ipw_set_scan_type(scan, channel_index,
6248 geo->bg[index].
6249 flags &
6250 LIBIPW_CH_PASSIVE_ONLY ?
6251 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6252 : scan_type);
6253 }
6254 } else {
6255 for (i = 0; i < geo->bg_channels; i++) {
6256 if ((priv->status & STATUS_ASSOCIATED) &&
6257 geo->bg[i].channel == priv->channel)
6258 continue;
6259 channel_index++;
6260 scan->channels_list[channel_index] =
6261 geo->bg[i].channel;
6262 ipw_set_scan_type(scan, channel_index,
6263 geo->bg[i].
6264 flags &
6265 LIBIPW_CH_PASSIVE_ONLY ?
6266 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6267 : scan_type);
6268 }
6269 }
6270
6271 if (start != channel_index) {
6272 scan->channels_list[start] = (u8) (IPW_B_MODE << 6) |
6273 (channel_index - start);
6274 }
6275 }
6276 }
6277
6278 static int ipw_passive_dwell_time(struct ipw_priv *priv)
6279 {
6280 /* staying on passive channels longer than the DTIM interval during a
6281 * scan, while associated, causes the firmware to cancel the scan
6282 * without notification. Hence, don't stay on passive channels longer
6283 * than the beacon interval.
6284 */
6285 if (priv->status & STATUS_ASSOCIATED
6286 && priv->assoc_network->beacon_interval > 10)
6287 return priv->assoc_network->beacon_interval - 10;
6288 else
6289 return 120;
6290 }
6291
6292 static int ipw_request_scan_helper(struct ipw_priv *priv, int type, int direct)
6293 {
6294 struct ipw_scan_request_ext scan;
6295 int err = 0, scan_type;
6296
6297 if (!(priv->status & STATUS_INIT) ||
6298 (priv->status & STATUS_EXIT_PENDING))
6299 return 0;
6300
6301 mutex_lock(&priv->mutex);
6302
6303 if (direct && (priv->direct_scan_ssid_len == 0)) {
6304 IPW_DEBUG_HC("Direct scan requested but no SSID to scan for\n");
6305 priv->status &= ~STATUS_DIRECT_SCAN_PENDING;
6306 goto done;
6307 }
6308
6309 if (priv->status & STATUS_SCANNING) {
6310 IPW_DEBUG_HC("Concurrent scan requested. Queuing.\n");
6311 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6312 STATUS_SCAN_PENDING;
6313 goto done;
6314 }
6315
6316 if (!(priv->status & STATUS_SCAN_FORCED) &&
6317 priv->status & STATUS_SCAN_ABORTING) {
6318 IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6319 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6320 STATUS_SCAN_PENDING;
6321 goto done;
6322 }
6323
6324 if (priv->status & STATUS_RF_KILL_MASK) {
6325 IPW_DEBUG_HC("Queuing scan due to RF Kill activation\n");
6326 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6327 STATUS_SCAN_PENDING;
6328 goto done;
6329 }
6330
6331 memset(&scan, 0, sizeof(scan));
6332 scan.full_scan_index = cpu_to_le32(libipw_get_scans(priv->ieee));
6333
6334 if (type == IW_SCAN_TYPE_PASSIVE) {
6335 IPW_DEBUG_WX("use passive scanning\n");
6336 scan_type = IPW_SCAN_PASSIVE_FULL_DWELL_SCAN;
6337 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6338 cpu_to_le16(ipw_passive_dwell_time(priv));
6339 ipw_add_scan_channels(priv, &scan, scan_type);
6340 goto send_request;
6341 }
6342
6343 /* Use active scan by default. */
6344 if (priv->config & CFG_SPEED_SCAN)
6345 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6346 cpu_to_le16(30);
6347 else
6348 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6349 cpu_to_le16(20);
6350
6351 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
6352 cpu_to_le16(20);
6353
6354 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6355 cpu_to_le16(ipw_passive_dwell_time(priv));
6356 scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20);
6357
6358 #ifdef CONFIG_IPW2200_MONITOR
6359 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
6360 u8 channel;
6361 u8 band = 0;
6362
6363 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
6364 case LIBIPW_52GHZ_BAND:
6365 band = (u8) (IPW_A_MODE << 6) | 1;
6366 channel = priv->channel;
6367 break;
6368
6369 case LIBIPW_24GHZ_BAND:
6370 band = (u8) (IPW_B_MODE << 6) | 1;
6371 channel = priv->channel;
6372 break;
6373
6374 default:
6375 band = (u8) (IPW_B_MODE << 6) | 1;
6376 channel = 9;
6377 break;
6378 }
6379
6380 scan.channels_list[0] = band;
6381 scan.channels_list[1] = channel;
6382 ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN);
6383
6384 /* NOTE: The card will sit on this channel for this time
6385 * period. Scan aborts are timing sensitive and frequently
6386 * result in firmware restarts. As such, it is best to
6387 * set a small dwell_time here and just keep re-issuing
6388 * scans. Otherwise fast channel hopping will not actually
6389 * hop channels.
6390 *
6391 * TODO: Move SPEED SCAN support to all modes and bands */
6392 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6393 cpu_to_le16(2000);
6394 } else {
6395 #endif /* CONFIG_IPW2200_MONITOR */
6396 /* Honor direct scans first, otherwise if we are roaming make
6397 * this a direct scan for the current network. Finally,
6398 * ensure that every other scan is a fast channel hop scan */
6399 if (direct) {
6400 err = ipw_send_ssid(priv, priv->direct_scan_ssid,
6401 priv->direct_scan_ssid_len);
6402 if (err) {
6403 IPW_DEBUG_HC("Attempt to send SSID command "
6404 "failed\n");
6405 goto done;
6406 }
6407
6408 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6409 } else if ((priv->status & STATUS_ROAMING)
6410 || (!(priv->status & STATUS_ASSOCIATED)
6411 && (priv->config & CFG_STATIC_ESSID)
6412 && (le32_to_cpu(scan.full_scan_index) % 2))) {
6413 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
6414 if (err) {
6415 IPW_DEBUG_HC("Attempt to send SSID command "
6416 "failed.\n");
6417 goto done;
6418 }
6419
6420 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6421 } else
6422 scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
6423
6424 ipw_add_scan_channels(priv, &scan, scan_type);
6425 #ifdef CONFIG_IPW2200_MONITOR
6426 }
6427 #endif
6428
6429 send_request:
6430 err = ipw_send_scan_request_ext(priv, &scan);
6431 if (err) {
6432 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
6433 goto done;
6434 }
6435
6436 priv->status |= STATUS_SCANNING;
6437 if (direct) {
6438 priv->status &= ~STATUS_DIRECT_SCAN_PENDING;
6439 priv->direct_scan_ssid_len = 0;
6440 } else
6441 priv->status &= ~STATUS_SCAN_PENDING;
6442
6443 schedule_delayed_work(&priv->scan_check, IPW_SCAN_CHECK_WATCHDOG);
6444 done:
6445 mutex_unlock(&priv->mutex);
6446 return err;
6447 }
6448
6449 static void ipw_request_passive_scan(struct work_struct *work)
6450 {
6451 struct ipw_priv *priv =
6452 container_of(work, struct ipw_priv, request_passive_scan.work);
6453 ipw_request_scan_helper(priv, IW_SCAN_TYPE_PASSIVE, 0);
6454 }
6455
6456 static void ipw_request_scan(struct work_struct *work)
6457 {
6458 struct ipw_priv *priv =
6459 container_of(work, struct ipw_priv, request_scan.work);
6460 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 0);
6461 }
6462
6463 static void ipw_request_direct_scan(struct work_struct *work)
6464 {
6465 struct ipw_priv *priv =
6466 container_of(work, struct ipw_priv, request_direct_scan.work);
6467 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 1);
6468 }
6469
6470 static void ipw_bg_abort_scan(struct work_struct *work)
6471 {
6472 struct ipw_priv *priv =
6473 container_of(work, struct ipw_priv, abort_scan);
6474 mutex_lock(&priv->mutex);
6475 ipw_abort_scan(priv);
6476 mutex_unlock(&priv->mutex);
6477 }
6478
6479 static int ipw_wpa_enable(struct ipw_priv *priv, int value)
6480 {
6481 /* This is called when wpa_supplicant loads and closes the driver
6482 * interface. */
6483 priv->ieee->wpa_enabled = value;
6484 return 0;
6485 }
6486
6487 static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value)
6488 {
6489 struct libipw_device *ieee = priv->ieee;
6490 struct libipw_security sec = {
6491 .flags = SEC_AUTH_MODE,
6492 };
6493 int ret = 0;
6494
6495 if (value & IW_AUTH_ALG_SHARED_KEY) {
6496 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
6497 ieee->open_wep = 0;
6498 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
6499 sec.auth_mode = WLAN_AUTH_OPEN;
6500 ieee->open_wep = 1;
6501 } else if (value & IW_AUTH_ALG_LEAP) {
6502 sec.auth_mode = WLAN_AUTH_LEAP;
6503 ieee->open_wep = 1;
6504 } else
6505 return -EINVAL;
6506
6507 if (ieee->set_security)
6508 ieee->set_security(ieee->dev, &sec);
6509 else
6510 ret = -EOPNOTSUPP;
6511
6512 return ret;
6513 }
6514
6515 static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie,
6516 int wpa_ie_len)
6517 {
6518 /* make sure WPA is enabled */
6519 ipw_wpa_enable(priv, 1);
6520 }
6521
6522 static int ipw_set_rsn_capa(struct ipw_priv *priv,
6523 char *capabilities, int length)
6524 {
6525 IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n");
6526
6527 return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length,
6528 capabilities);
6529 }
6530
6531 /*
6532 * WE-18 support
6533 */
6534
6535 /* SIOCSIWGENIE */
6536 static int ipw_wx_set_genie(struct net_device *dev,
6537 struct iw_request_info *info,
6538 union iwreq_data *wrqu, char *extra)
6539 {
6540 struct ipw_priv *priv = libipw_priv(dev);
6541 struct libipw_device *ieee = priv->ieee;
6542 u8 *buf;
6543 int err = 0;
6544
6545 if (wrqu->data.length > MAX_WPA_IE_LEN ||
6546 (wrqu->data.length && extra == NULL))
6547 return -EINVAL;
6548
6549 if (wrqu->data.length) {
6550 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
6551 if (buf == NULL) {
6552 err = -ENOMEM;
6553 goto out;
6554 }
6555
6556 kfree(ieee->wpa_ie);
6557 ieee->wpa_ie = buf;
6558 ieee->wpa_ie_len = wrqu->data.length;
6559 } else {
6560 kfree(ieee->wpa_ie);
6561 ieee->wpa_ie = NULL;
6562 ieee->wpa_ie_len = 0;
6563 }
6564
6565 ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
6566 out:
6567 return err;
6568 }
6569
6570 /* SIOCGIWGENIE */
6571 static int ipw_wx_get_genie(struct net_device *dev,
6572 struct iw_request_info *info,
6573 union iwreq_data *wrqu, char *extra)
6574 {
6575 struct ipw_priv *priv = libipw_priv(dev);
6576 struct libipw_device *ieee = priv->ieee;
6577 int err = 0;
6578
6579 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
6580 wrqu->data.length = 0;
6581 goto out;
6582 }
6583
6584 if (wrqu->data.length < ieee->wpa_ie_len) {
6585 err = -E2BIG;
6586 goto out;
6587 }
6588
6589 wrqu->data.length = ieee->wpa_ie_len;
6590 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
6591
6592 out:
6593 return err;
6594 }
6595
6596 static int wext_cipher2level(int cipher)
6597 {
6598 switch (cipher) {
6599 case IW_AUTH_CIPHER_NONE:
6600 return SEC_LEVEL_0;
6601 case IW_AUTH_CIPHER_WEP40:
6602 case IW_AUTH_CIPHER_WEP104:
6603 return SEC_LEVEL_1;
6604 case IW_AUTH_CIPHER_TKIP:
6605 return SEC_LEVEL_2;
6606 case IW_AUTH_CIPHER_CCMP:
6607 return SEC_LEVEL_3;
6608 default:
6609 return -1;
6610 }
6611 }
6612
6613 /* SIOCSIWAUTH */
6614 static int ipw_wx_set_auth(struct net_device *dev,
6615 struct iw_request_info *info,
6616 union iwreq_data *wrqu, char *extra)
6617 {
6618 struct ipw_priv *priv = libipw_priv(dev);
6619 struct libipw_device *ieee = priv->ieee;
6620 struct iw_param *param = &wrqu->param;
6621 struct lib80211_crypt_data *crypt;
6622 unsigned long flags;
6623 int ret = 0;
6624
6625 switch (param->flags & IW_AUTH_INDEX) {
6626 case IW_AUTH_WPA_VERSION:
6627 break;
6628 case IW_AUTH_CIPHER_PAIRWISE:
6629 ipw_set_hw_decrypt_unicast(priv,
6630 wext_cipher2level(param->value));
6631 break;
6632 case IW_AUTH_CIPHER_GROUP:
6633 ipw_set_hw_decrypt_multicast(priv,
6634 wext_cipher2level(param->value));
6635 break;
6636 case IW_AUTH_KEY_MGMT:
6637 /*
6638 * ipw2200 does not use these parameters
6639 */
6640 break;
6641
6642 case IW_AUTH_TKIP_COUNTERMEASURES:
6643 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
6644 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
6645 break;
6646
6647 flags = crypt->ops->get_flags(crypt->priv);
6648
6649 if (param->value)
6650 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6651 else
6652 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6653
6654 crypt->ops->set_flags(flags, crypt->priv);
6655
6656 break;
6657
6658 case IW_AUTH_DROP_UNENCRYPTED:{
6659 /* HACK:
6660 *
6661 * wpa_supplicant calls set_wpa_enabled when the driver
6662 * is loaded and unloaded, regardless of if WPA is being
6663 * used. No other calls are made which can be used to
6664 * determine if encryption will be used or not prior to
6665 * association being expected. If encryption is not being
6666 * used, drop_unencrypted is set to false, else true -- we
6667 * can use this to determine if the CAP_PRIVACY_ON bit should
6668 * be set.
6669 */
6670 struct libipw_security sec = {
6671 .flags = SEC_ENABLED,
6672 .enabled = param->value,
6673 };
6674 priv->ieee->drop_unencrypted = param->value;
6675 /* We only change SEC_LEVEL for open mode. Others
6676 * are set by ipw_wpa_set_encryption.
6677 */
6678 if (!param->value) {
6679 sec.flags |= SEC_LEVEL;
6680 sec.level = SEC_LEVEL_0;
6681 } else {
6682 sec.flags |= SEC_LEVEL;
6683 sec.level = SEC_LEVEL_1;
6684 }
6685 if (priv->ieee->set_security)
6686 priv->ieee->set_security(priv->ieee->dev, &sec);
6687 break;
6688 }
6689
6690 case IW_AUTH_80211_AUTH_ALG:
6691 ret = ipw_wpa_set_auth_algs(priv, param->value);
6692 break;
6693
6694 case IW_AUTH_WPA_ENABLED:
6695 ret = ipw_wpa_enable(priv, param->value);
6696 ipw_disassociate(priv);
6697 break;
6698
6699 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6700 ieee->ieee802_1x = param->value;
6701 break;
6702
6703 case IW_AUTH_PRIVACY_INVOKED:
6704 ieee->privacy_invoked = param->value;
6705 break;
6706
6707 default:
6708 return -EOPNOTSUPP;
6709 }
6710 return ret;
6711 }
6712
6713 /* SIOCGIWAUTH */
6714 static int ipw_wx_get_auth(struct net_device *dev,
6715 struct iw_request_info *info,
6716 union iwreq_data *wrqu, char *extra)
6717 {
6718 struct ipw_priv *priv = libipw_priv(dev);
6719 struct libipw_device *ieee = priv->ieee;
6720 struct lib80211_crypt_data *crypt;
6721 struct iw_param *param = &wrqu->param;
6722
6723 switch (param->flags & IW_AUTH_INDEX) {
6724 case IW_AUTH_WPA_VERSION:
6725 case IW_AUTH_CIPHER_PAIRWISE:
6726 case IW_AUTH_CIPHER_GROUP:
6727 case IW_AUTH_KEY_MGMT:
6728 /*
6729 * wpa_supplicant will control these internally
6730 */
6731 return -EOPNOTSUPP;
6732
6733 case IW_AUTH_TKIP_COUNTERMEASURES:
6734 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
6735 if (!crypt || !crypt->ops->get_flags)
6736 break;
6737
6738 param->value = (crypt->ops->get_flags(crypt->priv) &
6739 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
6740
6741 break;
6742
6743 case IW_AUTH_DROP_UNENCRYPTED:
6744 param->value = ieee->drop_unencrypted;
6745 break;
6746
6747 case IW_AUTH_80211_AUTH_ALG:
6748 param->value = ieee->sec.auth_mode;
6749 break;
6750
6751 case IW_AUTH_WPA_ENABLED:
6752 param->value = ieee->wpa_enabled;
6753 break;
6754
6755 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6756 param->value = ieee->ieee802_1x;
6757 break;
6758
6759 case IW_AUTH_ROAMING_CONTROL:
6760 case IW_AUTH_PRIVACY_INVOKED:
6761 param->value = ieee->privacy_invoked;
6762 break;
6763
6764 default:
6765 return -EOPNOTSUPP;
6766 }
6767 return 0;
6768 }
6769
6770 /* SIOCSIWENCODEEXT */
6771 static int ipw_wx_set_encodeext(struct net_device *dev,
6772 struct iw_request_info *info,
6773 union iwreq_data *wrqu, char *extra)
6774 {
6775 struct ipw_priv *priv = libipw_priv(dev);
6776 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6777
6778 if (hwcrypto) {
6779 if (ext->alg == IW_ENCODE_ALG_TKIP) {
6780 /* IPW HW can't build TKIP MIC,
6781 host decryption still needed */
6782 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
6783 priv->ieee->host_mc_decrypt = 1;
6784 else {
6785 priv->ieee->host_encrypt = 0;
6786 priv->ieee->host_encrypt_msdu = 1;
6787 priv->ieee->host_decrypt = 1;
6788 }
6789 } else {
6790 priv->ieee->host_encrypt = 0;
6791 priv->ieee->host_encrypt_msdu = 0;
6792 priv->ieee->host_decrypt = 0;
6793 priv->ieee->host_mc_decrypt = 0;
6794 }
6795 }
6796
6797 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
6798 }
6799
6800 /* SIOCGIWENCODEEXT */
6801 static int ipw_wx_get_encodeext(struct net_device *dev,
6802 struct iw_request_info *info,
6803 union iwreq_data *wrqu, char *extra)
6804 {
6805 struct ipw_priv *priv = libipw_priv(dev);
6806 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
6807 }
6808
6809 /* SIOCSIWMLME */
6810 static int ipw_wx_set_mlme(struct net_device *dev,
6811 struct iw_request_info *info,
6812 union iwreq_data *wrqu, char *extra)
6813 {
6814 struct ipw_priv *priv = libipw_priv(dev);
6815 struct iw_mlme *mlme = (struct iw_mlme *)extra;
6816 __le16 reason;
6817
6818 reason = cpu_to_le16(mlme->reason_code);
6819
6820 switch (mlme->cmd) {
6821 case IW_MLME_DEAUTH:
6822 /* silently ignore */
6823 break;
6824
6825 case IW_MLME_DISASSOC:
6826 ipw_disassociate(priv);
6827 break;
6828
6829 default:
6830 return -EOPNOTSUPP;
6831 }
6832 return 0;
6833 }
6834
6835 #ifdef CONFIG_IPW2200_QOS
6836
6837 /* QoS */
6838 /*
6839 * get the modulation type of the current network or
6840 * the card current mode
6841 */
6842 static u8 ipw_qos_current_mode(struct ipw_priv * priv)
6843 {
6844 u8 mode = 0;
6845
6846 if (priv->status & STATUS_ASSOCIATED) {
6847 unsigned long flags;
6848
6849 spin_lock_irqsave(&priv->ieee->lock, flags);
6850 mode = priv->assoc_network->mode;
6851 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6852 } else {
6853 mode = priv->ieee->mode;
6854 }
6855 IPW_DEBUG_QOS("QoS network/card mode %d\n", mode);
6856 return mode;
6857 }
6858
6859 /*
6860 * Handle management frame beacon and probe response
6861 */
6862 static int ipw_qos_handle_probe_response(struct ipw_priv *priv,
6863 int active_network,
6864 struct libipw_network *network)
6865 {
6866 u32 size = sizeof(struct libipw_qos_parameters);
6867
6868 if (network->capability & WLAN_CAPABILITY_IBSS)
6869 network->qos_data.active = network->qos_data.supported;
6870
6871 if (network->flags & NETWORK_HAS_QOS_MASK) {
6872 if (active_network &&
6873 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
6874 network->qos_data.active = network->qos_data.supported;
6875
6876 if ((network->qos_data.active == 1) && (active_network == 1) &&
6877 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
6878 (network->qos_data.old_param_count !=
6879 network->qos_data.param_count)) {
6880 network->qos_data.old_param_count =
6881 network->qos_data.param_count;
6882 schedule_work(&priv->qos_activate);
6883 IPW_DEBUG_QOS("QoS parameters change call "
6884 "qos_activate\n");
6885 }
6886 } else {
6887 if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B))
6888 memcpy(&network->qos_data.parameters,
6889 &def_parameters_CCK, size);
6890 else
6891 memcpy(&network->qos_data.parameters,
6892 &def_parameters_OFDM, size);
6893
6894 if ((network->qos_data.active == 1) && (active_network == 1)) {
6895 IPW_DEBUG_QOS("QoS was disabled call qos_activate\n");
6896 schedule_work(&priv->qos_activate);
6897 }
6898
6899 network->qos_data.active = 0;
6900 network->qos_data.supported = 0;
6901 }
6902 if ((priv->status & STATUS_ASSOCIATED) &&
6903 (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) {
6904 if (!ether_addr_equal(network->bssid, priv->bssid))
6905 if (network->capability & WLAN_CAPABILITY_IBSS)
6906 if ((network->ssid_len ==
6907 priv->assoc_network->ssid_len) &&
6908 !memcmp(network->ssid,
6909 priv->assoc_network->ssid,
6910 network->ssid_len)) {
6911 schedule_work(&priv->merge_networks);
6912 }
6913 }
6914
6915 return 0;
6916 }
6917
6918 /*
6919 * This function set up the firmware to support QoS. It sends
6920 * IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO
6921 */
6922 static int ipw_qos_activate(struct ipw_priv *priv,
6923 struct libipw_qos_data *qos_network_data)
6924 {
6925 int err;
6926 struct libipw_qos_parameters qos_parameters[QOS_QOS_SETS];
6927 struct libipw_qos_parameters *active_one = NULL;
6928 u32 size = sizeof(struct libipw_qos_parameters);
6929 u32 burst_duration;
6930 int i;
6931 u8 type;
6932
6933 type = ipw_qos_current_mode(priv);
6934
6935 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]);
6936 memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size);
6937 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]);
6938 memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size);
6939
6940 if (qos_network_data == NULL) {
6941 if (type == IEEE_B) {
6942 IPW_DEBUG_QOS("QoS activate network mode %d\n", type);
6943 active_one = &def_parameters_CCK;
6944 } else
6945 active_one = &def_parameters_OFDM;
6946
6947 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6948 burst_duration = ipw_qos_get_burst_duration(priv);
6949 for (i = 0; i < QOS_QUEUE_NUM; i++)
6950 qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] =
6951 cpu_to_le16(burst_duration);
6952 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6953 if (type == IEEE_B) {
6954 IPW_DEBUG_QOS("QoS activate IBSS network mode %d\n",
6955 type);
6956 if (priv->qos_data.qos_enable == 0)
6957 active_one = &def_parameters_CCK;
6958 else
6959 active_one = priv->qos_data.def_qos_parm_CCK;
6960 } else {
6961 if (priv->qos_data.qos_enable == 0)
6962 active_one = &def_parameters_OFDM;
6963 else
6964 active_one = priv->qos_data.def_qos_parm_OFDM;
6965 }
6966 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6967 } else {
6968 unsigned long flags;
6969 int active;
6970
6971 spin_lock_irqsave(&priv->ieee->lock, flags);
6972 active_one = &(qos_network_data->parameters);
6973 qos_network_data->old_param_count =
6974 qos_network_data->param_count;
6975 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6976 active = qos_network_data->supported;
6977 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6978
6979 if (active == 0) {
6980 burst_duration = ipw_qos_get_burst_duration(priv);
6981 for (i = 0; i < QOS_QUEUE_NUM; i++)
6982 qos_parameters[QOS_PARAM_SET_ACTIVE].
6983 tx_op_limit[i] = cpu_to_le16(burst_duration);
6984 }
6985 }
6986
6987 IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n");
6988 err = ipw_send_qos_params_command(priv, &qos_parameters[0]);
6989 if (err)
6990 IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n");
6991
6992 return err;
6993 }
6994
6995 /*
6996 * send IPW_CMD_WME_INFO to the firmware
6997 */
6998 static int ipw_qos_set_info_element(struct ipw_priv *priv)
6999 {
7000 int ret = 0;
7001 struct libipw_qos_information_element qos_info;
7002
7003 if (priv == NULL)
7004 return -1;
7005
7006 qos_info.elementID = QOS_ELEMENT_ID;
7007 qos_info.length = sizeof(struct libipw_qos_information_element) - 2;
7008
7009 qos_info.version = QOS_VERSION_1;
7010 qos_info.ac_info = 0;
7011
7012 memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN);
7013 qos_info.qui_type = QOS_OUI_TYPE;
7014 qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE;
7015
7016 ret = ipw_send_qos_info_command(priv, &qos_info);
7017 if (ret != 0) {
7018 IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n");
7019 }
7020 return ret;
7021 }
7022
7023 /*
7024 * Set the QoS parameter with the association request structure
7025 */
7026 static int ipw_qos_association(struct ipw_priv *priv,
7027 struct libipw_network *network)
7028 {
7029 int err = 0;
7030 struct libipw_qos_data *qos_data = NULL;
7031 struct libipw_qos_data ibss_data = {
7032 .supported = 1,
7033 .active = 1,
7034 };
7035
7036 switch (priv->ieee->iw_mode) {
7037 case IW_MODE_ADHOC:
7038 BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS));
7039
7040 qos_data = &ibss_data;
7041 break;
7042
7043 case IW_MODE_INFRA:
7044 qos_data = &network->qos_data;
7045 break;
7046
7047 default:
7048 BUG();
7049 break;
7050 }
7051
7052 err = ipw_qos_activate(priv, qos_data);
7053 if (err) {
7054 priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC;
7055 return err;
7056 }
7057
7058 if (priv->qos_data.qos_enable && qos_data->supported) {
7059 IPW_DEBUG_QOS("QoS will be enabled for this association\n");
7060 priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC;
7061 return ipw_qos_set_info_element(priv);
7062 }
7063
7064 return 0;
7065 }
7066
7067 /*
7068 * handling the beaconing responses. if we get different QoS setting
7069 * off the network from the associated setting, adjust the QoS
7070 * setting
7071 */
7072 static int ipw_qos_association_resp(struct ipw_priv *priv,
7073 struct libipw_network *network)
7074 {
7075 int ret = 0;
7076 unsigned long flags;
7077 u32 size = sizeof(struct libipw_qos_parameters);
7078 int set_qos_param = 0;
7079
7080 if ((priv == NULL) || (network == NULL) ||
7081 (priv->assoc_network == NULL))
7082 return ret;
7083
7084 if (!(priv->status & STATUS_ASSOCIATED))
7085 return ret;
7086
7087 if ((priv->ieee->iw_mode != IW_MODE_INFRA))
7088 return ret;
7089
7090 spin_lock_irqsave(&priv->ieee->lock, flags);
7091 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
7092 memcpy(&priv->assoc_network->qos_data, &network->qos_data,
7093 sizeof(struct libipw_qos_data));
7094 priv->assoc_network->qos_data.active = 1;
7095 if ((network->qos_data.old_param_count !=
7096 network->qos_data.param_count)) {
7097 set_qos_param = 1;
7098 network->qos_data.old_param_count =
7099 network->qos_data.param_count;
7100 }
7101
7102 } else {
7103 if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B))
7104 memcpy(&priv->assoc_network->qos_data.parameters,
7105 &def_parameters_CCK, size);
7106 else
7107 memcpy(&priv->assoc_network->qos_data.parameters,
7108 &def_parameters_OFDM, size);
7109 priv->assoc_network->qos_data.active = 0;
7110 priv->assoc_network->qos_data.supported = 0;
7111 set_qos_param = 1;
7112 }
7113
7114 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7115
7116 if (set_qos_param == 1)
7117 schedule_work(&priv->qos_activate);
7118
7119 return ret;
7120 }
7121
7122 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv)
7123 {
7124 u32 ret = 0;
7125
7126 if ((priv == NULL))
7127 return 0;
7128
7129 if (!(priv->ieee->modulation & LIBIPW_OFDM_MODULATION))
7130 ret = priv->qos_data.burst_duration_CCK;
7131 else
7132 ret = priv->qos_data.burst_duration_OFDM;
7133
7134 return ret;
7135 }
7136
7137 /*
7138 * Initialize the setting of QoS global
7139 */
7140 static void ipw_qos_init(struct ipw_priv *priv, int enable,
7141 int burst_enable, u32 burst_duration_CCK,
7142 u32 burst_duration_OFDM)
7143 {
7144 priv->qos_data.qos_enable = enable;
7145
7146 if (priv->qos_data.qos_enable) {
7147 priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK;
7148 priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM;
7149 IPW_DEBUG_QOS("QoS is enabled\n");
7150 } else {
7151 priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK;
7152 priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM;
7153 IPW_DEBUG_QOS("QoS is not enabled\n");
7154 }
7155
7156 priv->qos_data.burst_enable = burst_enable;
7157
7158 if (burst_enable) {
7159 priv->qos_data.burst_duration_CCK = burst_duration_CCK;
7160 priv->qos_data.burst_duration_OFDM = burst_duration_OFDM;
7161 } else {
7162 priv->qos_data.burst_duration_CCK = 0;
7163 priv->qos_data.burst_duration_OFDM = 0;
7164 }
7165 }
7166
7167 /*
7168 * map the packet priority to the right TX Queue
7169 */
7170 static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority)
7171 {
7172 if (priority > 7 || !priv->qos_data.qos_enable)
7173 priority = 0;
7174
7175 return from_priority_to_tx_queue[priority] - 1;
7176 }
7177
7178 static int ipw_is_qos_active(struct net_device *dev,
7179 struct sk_buff *skb)
7180 {
7181 struct ipw_priv *priv = libipw_priv(dev);
7182 struct libipw_qos_data *qos_data = NULL;
7183 int active, supported;
7184 u8 *daddr = skb->data + ETH_ALEN;
7185 int unicast = !is_multicast_ether_addr(daddr);
7186
7187 if (!(priv->status & STATUS_ASSOCIATED))
7188 return 0;
7189
7190 qos_data = &priv->assoc_network->qos_data;
7191
7192 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7193 if (unicast == 0)
7194 qos_data->active = 0;
7195 else
7196 qos_data->active = qos_data->supported;
7197 }
7198 active = qos_data->active;
7199 supported = qos_data->supported;
7200 IPW_DEBUG_QOS("QoS %d network is QoS active %d supported %d "
7201 "unicast %d\n",
7202 priv->qos_data.qos_enable, active, supported, unicast);
7203 if (active && priv->qos_data.qos_enable)
7204 return 1;
7205
7206 return 0;
7207
7208 }
7209 /*
7210 * add QoS parameter to the TX command
7211 */
7212 static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv,
7213 u16 priority,
7214 struct tfd_data *tfd)
7215 {
7216 int tx_queue_id = 0;
7217
7218
7219 tx_queue_id = from_priority_to_tx_queue[priority] - 1;
7220 tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED;
7221
7222 if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) {
7223 tfd->tx_flags &= ~DCT_FLAG_ACK_REQD;
7224 tfd->tfd.tfd_26.mchdr.qos_ctrl |= cpu_to_le16(CTRL_QOS_NO_ACK);
7225 }
7226 return 0;
7227 }
7228
7229 /*
7230 * background support to run QoS activate functionality
7231 */
7232 static void ipw_bg_qos_activate(struct work_struct *work)
7233 {
7234 struct ipw_priv *priv =
7235 container_of(work, struct ipw_priv, qos_activate);
7236
7237 mutex_lock(&priv->mutex);
7238
7239 if (priv->status & STATUS_ASSOCIATED)
7240 ipw_qos_activate(priv, &(priv->assoc_network->qos_data));
7241
7242 mutex_unlock(&priv->mutex);
7243 }
7244
7245 static int ipw_handle_probe_response(struct net_device *dev,
7246 struct libipw_probe_response *resp,
7247 struct libipw_network *network)
7248 {
7249 struct ipw_priv *priv = libipw_priv(dev);
7250 int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7251 (network == priv->assoc_network));
7252
7253 ipw_qos_handle_probe_response(priv, active_network, network);
7254
7255 return 0;
7256 }
7257
7258 static int ipw_handle_beacon(struct net_device *dev,
7259 struct libipw_beacon *resp,
7260 struct libipw_network *network)
7261 {
7262 struct ipw_priv *priv = libipw_priv(dev);
7263 int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7264 (network == priv->assoc_network));
7265
7266 ipw_qos_handle_probe_response(priv, active_network, network);
7267
7268 return 0;
7269 }
7270
7271 static int ipw_handle_assoc_response(struct net_device *dev,
7272 struct libipw_assoc_response *resp,
7273 struct libipw_network *network)
7274 {
7275 struct ipw_priv *priv = libipw_priv(dev);
7276 ipw_qos_association_resp(priv, network);
7277 return 0;
7278 }
7279
7280 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters
7281 *qos_param)
7282 {
7283 return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS,
7284 sizeof(*qos_param) * 3, qos_param);
7285 }
7286
7287 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element
7288 *qos_param)
7289 {
7290 return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param),
7291 qos_param);
7292 }
7293
7294 #endif /* CONFIG_IPW2200_QOS */
7295
7296 static int ipw_associate_network(struct ipw_priv *priv,
7297 struct libipw_network *network,
7298 struct ipw_supported_rates *rates, int roaming)
7299 {
7300 int err;
7301
7302 if (priv->config & CFG_FIXED_RATE)
7303 ipw_set_fixed_rate(priv, network->mode);
7304
7305 if (!(priv->config & CFG_STATIC_ESSID)) {
7306 priv->essid_len = min(network->ssid_len,
7307 (u8) IW_ESSID_MAX_SIZE);
7308 memcpy(priv->essid, network->ssid, priv->essid_len);
7309 }
7310
7311 network->last_associate = jiffies;
7312
7313 memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
7314 priv->assoc_request.channel = network->channel;
7315 priv->assoc_request.auth_key = 0;
7316
7317 if ((priv->capability & CAP_PRIVACY_ON) &&
7318 (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) {
7319 priv->assoc_request.auth_type = AUTH_SHARED_KEY;
7320 priv->assoc_request.auth_key = priv->ieee->sec.active_key;
7321
7322 if (priv->ieee->sec.level == SEC_LEVEL_1)
7323 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
7324
7325 } else if ((priv->capability & CAP_PRIVACY_ON) &&
7326 (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP))
7327 priv->assoc_request.auth_type = AUTH_LEAP;
7328 else
7329 priv->assoc_request.auth_type = AUTH_OPEN;
7330
7331 if (priv->ieee->wpa_ie_len) {
7332 priv->assoc_request.policy_support = cpu_to_le16(0x02); /* RSN active */
7333 ipw_set_rsn_capa(priv, priv->ieee->wpa_ie,
7334 priv->ieee->wpa_ie_len);
7335 }
7336
7337 /*
7338 * It is valid for our ieee device to support multiple modes, but
7339 * when it comes to associating to a given network we have to choose
7340 * just one mode.
7341 */
7342 if (network->mode & priv->ieee->mode & IEEE_A)
7343 priv->assoc_request.ieee_mode = IPW_A_MODE;
7344 else if (network->mode & priv->ieee->mode & IEEE_G)
7345 priv->assoc_request.ieee_mode = IPW_G_MODE;
7346 else if (network->mode & priv->ieee->mode & IEEE_B)
7347 priv->assoc_request.ieee_mode = IPW_B_MODE;
7348
7349 priv->assoc_request.capability = cpu_to_le16(network->capability);
7350 if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
7351 && !(priv->config & CFG_PREAMBLE_LONG)) {
7352 priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE;
7353 } else {
7354 priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE;
7355
7356 /* Clear the short preamble if we won't be supporting it */
7357 priv->assoc_request.capability &=
7358 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
7359 }
7360
7361 /* Clear capability bits that aren't used in Ad Hoc */
7362 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7363 priv->assoc_request.capability &=
7364 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
7365
7366 IPW_DEBUG_ASSOC("%ssociation attempt: '%*pE', channel %d, 802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n",
7367 roaming ? "Rea" : "A",
7368 priv->essid_len, priv->essid,
7369 network->channel,
7370 ipw_modes[priv->assoc_request.ieee_mode],
7371 rates->num_rates,
7372 (priv->assoc_request.preamble_length ==
7373 DCT_FLAG_LONG_PREAMBLE) ? "long" : "short",
7374 network->capability &
7375 WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long",
7376 priv->capability & CAP_PRIVACY_ON ? "on " : "off",
7377 priv->capability & CAP_PRIVACY_ON ?
7378 (priv->capability & CAP_SHARED_KEY ? "(shared)" :
7379 "(open)") : "",
7380 priv->capability & CAP_PRIVACY_ON ? " key=" : "",
7381 priv->capability & CAP_PRIVACY_ON ?
7382 '1' + priv->ieee->sec.active_key : '.',
7383 priv->capability & CAP_PRIVACY_ON ? '.' : ' ');
7384
7385 priv->assoc_request.beacon_interval = cpu_to_le16(network->beacon_interval);
7386 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
7387 (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) {
7388 priv->assoc_request.assoc_type = HC_IBSS_START;
7389 priv->assoc_request.assoc_tsf_msw = 0;
7390 priv->assoc_request.assoc_tsf_lsw = 0;
7391 } else {
7392 if (unlikely(roaming))
7393 priv->assoc_request.assoc_type = HC_REASSOCIATE;
7394 else
7395 priv->assoc_request.assoc_type = HC_ASSOCIATE;
7396 priv->assoc_request.assoc_tsf_msw = cpu_to_le32(network->time_stamp[1]);
7397 priv->assoc_request.assoc_tsf_lsw = cpu_to_le32(network->time_stamp[0]);
7398 }
7399
7400 memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN);
7401
7402 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7403 eth_broadcast_addr(priv->assoc_request.dest);
7404 priv->assoc_request.atim_window = cpu_to_le16(network->atim_window);
7405 } else {
7406 memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN);
7407 priv->assoc_request.atim_window = 0;
7408 }
7409
7410 priv->assoc_request.listen_interval = cpu_to_le16(network->listen_interval);
7411
7412 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
7413 if (err) {
7414 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
7415 return err;
7416 }
7417
7418 rates->ieee_mode = priv->assoc_request.ieee_mode;
7419 rates->purpose = IPW_RATE_CONNECT;
7420 ipw_send_supported_rates(priv, rates);
7421
7422 if (priv->assoc_request.ieee_mode == IPW_G_MODE)
7423 priv->sys_config.dot11g_auto_detection = 1;
7424 else
7425 priv->sys_config.dot11g_auto_detection = 0;
7426
7427 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7428 priv->sys_config.answer_broadcast_ssid_probe = 1;
7429 else
7430 priv->sys_config.answer_broadcast_ssid_probe = 0;
7431
7432 err = ipw_send_system_config(priv);
7433 if (err) {
7434 IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
7435 return err;
7436 }
7437
7438 IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
7439 err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM);
7440 if (err) {
7441 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7442 return err;
7443 }
7444
7445 /*
7446 * If preemption is enabled, it is possible for the association
7447 * to complete before we return from ipw_send_associate. Therefore
7448 * we have to be sure and update our priviate data first.
7449 */
7450 priv->channel = network->channel;
7451 memcpy(priv->bssid, network->bssid, ETH_ALEN);
7452 priv->status |= STATUS_ASSOCIATING;
7453 priv->status &= ~STATUS_SECURITY_UPDATED;
7454
7455 priv->assoc_network = network;
7456
7457 #ifdef CONFIG_IPW2200_QOS
7458 ipw_qos_association(priv, network);
7459 #endif
7460
7461 err = ipw_send_associate(priv, &priv->assoc_request);
7462 if (err) {
7463 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7464 return err;
7465 }
7466
7467 IPW_DEBUG(IPW_DL_STATE, "associating: '%*pE' %pM\n",
7468 priv->essid_len, priv->essid, priv->bssid);
7469
7470 return 0;
7471 }
7472
7473 static void ipw_roam(void *data)
7474 {
7475 struct ipw_priv *priv = data;
7476 struct libipw_network *network = NULL;
7477 struct ipw_network_match match = {
7478 .network = priv->assoc_network
7479 };
7480
7481 /* The roaming process is as follows:
7482 *
7483 * 1. Missed beacon threshold triggers the roaming process by
7484 * setting the status ROAM bit and requesting a scan.
7485 * 2. When the scan completes, it schedules the ROAM work
7486 * 3. The ROAM work looks at all of the known networks for one that
7487 * is a better network than the currently associated. If none
7488 * found, the ROAM process is over (ROAM bit cleared)
7489 * 4. If a better network is found, a disassociation request is
7490 * sent.
7491 * 5. When the disassociation completes, the roam work is again
7492 * scheduled. The second time through, the driver is no longer
7493 * associated, and the newly selected network is sent an
7494 * association request.
7495 * 6. At this point ,the roaming process is complete and the ROAM
7496 * status bit is cleared.
7497 */
7498
7499 /* If we are no longer associated, and the roaming bit is no longer
7500 * set, then we are not actively roaming, so just return */
7501 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
7502 return;
7503
7504 if (priv->status & STATUS_ASSOCIATED) {
7505 /* First pass through ROAM process -- look for a better
7506 * network */
7507 unsigned long flags;
7508 u8 rssi = priv->assoc_network->stats.rssi;
7509 priv->assoc_network->stats.rssi = -128;
7510 spin_lock_irqsave(&priv->ieee->lock, flags);
7511 list_for_each_entry(network, &priv->ieee->network_list, list) {
7512 if (network != priv->assoc_network)
7513 ipw_best_network(priv, &match, network, 1);
7514 }
7515 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7516 priv->assoc_network->stats.rssi = rssi;
7517
7518 if (match.network == priv->assoc_network) {
7519 IPW_DEBUG_ASSOC("No better APs in this network to "
7520 "roam to.\n");
7521 priv->status &= ~STATUS_ROAMING;
7522 ipw_debug_config(priv);
7523 return;
7524 }
7525
7526 ipw_send_disassociate(priv, 1);
7527 priv->assoc_network = match.network;
7528
7529 return;
7530 }
7531
7532 /* Second pass through ROAM process -- request association */
7533 ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
7534 ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
7535 priv->status &= ~STATUS_ROAMING;
7536 }
7537
7538 static void ipw_bg_roam(struct work_struct *work)
7539 {
7540 struct ipw_priv *priv =
7541 container_of(work, struct ipw_priv, roam);
7542 mutex_lock(&priv->mutex);
7543 ipw_roam(priv);
7544 mutex_unlock(&priv->mutex);
7545 }
7546
7547 static int ipw_associate(void *data)
7548 {
7549 struct ipw_priv *priv = data;
7550
7551 struct libipw_network *network = NULL;
7552 struct ipw_network_match match = {
7553 .network = NULL
7554 };
7555 struct ipw_supported_rates *rates;
7556 struct list_head *element;
7557 unsigned long flags;
7558
7559 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7560 IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n");
7561 return 0;
7562 }
7563
7564 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
7565 IPW_DEBUG_ASSOC("Not attempting association (already in "
7566 "progress)\n");
7567 return 0;
7568 }
7569
7570 if (priv->status & STATUS_DISASSOCIATING) {
7571 IPW_DEBUG_ASSOC("Not attempting association (in "
7572 "disassociating)\n ");
7573 schedule_work(&priv->associate);
7574 return 0;
7575 }
7576
7577 if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) {
7578 IPW_DEBUG_ASSOC("Not attempting association (scanning or not "
7579 "initialized)\n");
7580 return 0;
7581 }
7582
7583 if (!(priv->config & CFG_ASSOCIATE) &&
7584 !(priv->config & (CFG_STATIC_ESSID | CFG_STATIC_BSSID))) {
7585 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
7586 return 0;
7587 }
7588
7589 /* Protect our use of the network_list */
7590 spin_lock_irqsave(&priv->ieee->lock, flags);
7591 list_for_each_entry(network, &priv->ieee->network_list, list)
7592 ipw_best_network(priv, &match, network, 0);
7593
7594 network = match.network;
7595 rates = &match.rates;
7596
7597 if (network == NULL &&
7598 priv->ieee->iw_mode == IW_MODE_ADHOC &&
7599 priv->config & CFG_ADHOC_CREATE &&
7600 priv->config & CFG_STATIC_ESSID &&
7601 priv->config & CFG_STATIC_CHANNEL) {
7602 /* Use oldest network if the free list is empty */
7603 if (list_empty(&priv->ieee->network_free_list)) {
7604 struct libipw_network *oldest = NULL;
7605 struct libipw_network *target;
7606
7607 list_for_each_entry(target, &priv->ieee->network_list, list) {
7608 if ((oldest == NULL) ||
7609 (target->last_scanned < oldest->last_scanned))
7610 oldest = target;
7611 }
7612
7613 /* If there are no more slots, expire the oldest */
7614 list_del(&oldest->list);
7615 target = oldest;
7616 IPW_DEBUG_ASSOC("Expired '%*pE' (%pM) from network list.\n",
7617 target->ssid_len, target->ssid,
7618 target->bssid);
7619 list_add_tail(&target->list,
7620 &priv->ieee->network_free_list);
7621 }
7622
7623 element = priv->ieee->network_free_list.next;
7624 network = list_entry(element, struct libipw_network, list);
7625 ipw_adhoc_create(priv, network);
7626 rates = &priv->rates;
7627 list_del(element);
7628 list_add_tail(&network->list, &priv->ieee->network_list);
7629 }
7630 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7631
7632 /* If we reached the end of the list, then we don't have any valid
7633 * matching APs */
7634 if (!network) {
7635 ipw_debug_config(priv);
7636
7637 if (!(priv->status & STATUS_SCANNING)) {
7638 if (!(priv->config & CFG_SPEED_SCAN))
7639 schedule_delayed_work(&priv->request_scan,
7640 SCAN_INTERVAL);
7641 else
7642 schedule_delayed_work(&priv->request_scan, 0);
7643 }
7644
7645 return 0;
7646 }
7647
7648 ipw_associate_network(priv, network, rates, 0);
7649
7650 return 1;
7651 }
7652
7653 static void ipw_bg_associate(struct work_struct *work)
7654 {
7655 struct ipw_priv *priv =
7656 container_of(work, struct ipw_priv, associate);
7657 mutex_lock(&priv->mutex);
7658 ipw_associate(priv);
7659 mutex_unlock(&priv->mutex);
7660 }
7661
7662 static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv,
7663 struct sk_buff *skb)
7664 {
7665 struct ieee80211_hdr *hdr;
7666 u16 fc;
7667
7668 hdr = (struct ieee80211_hdr *)skb->data;
7669 fc = le16_to_cpu(hdr->frame_control);
7670 if (!(fc & IEEE80211_FCTL_PROTECTED))
7671 return;
7672
7673 fc &= ~IEEE80211_FCTL_PROTECTED;
7674 hdr->frame_control = cpu_to_le16(fc);
7675 switch (priv->ieee->sec.level) {
7676 case SEC_LEVEL_3:
7677 /* Remove CCMP HDR */
7678 memmove(skb->data + LIBIPW_3ADDR_LEN,
7679 skb->data + LIBIPW_3ADDR_LEN + 8,
7680 skb->len - LIBIPW_3ADDR_LEN - 8);
7681 skb_trim(skb, skb->len - 16); /* CCMP_HDR_LEN + CCMP_MIC_LEN */
7682 break;
7683 case SEC_LEVEL_2:
7684 break;
7685 case SEC_LEVEL_1:
7686 /* Remove IV */
7687 memmove(skb->data + LIBIPW_3ADDR_LEN,
7688 skb->data + LIBIPW_3ADDR_LEN + 4,
7689 skb->len - LIBIPW_3ADDR_LEN - 4);
7690 skb_trim(skb, skb->len - 8); /* IV + ICV */
7691 break;
7692 case SEC_LEVEL_0:
7693 break;
7694 default:
7695 printk(KERN_ERR "Unknown security level %d\n",
7696 priv->ieee->sec.level);
7697 break;
7698 }
7699 }
7700
7701 static void ipw_handle_data_packet(struct ipw_priv *priv,
7702 struct ipw_rx_mem_buffer *rxb,
7703 struct libipw_rx_stats *stats)
7704 {
7705 struct net_device *dev = priv->net_dev;
7706 struct libipw_hdr_4addr *hdr;
7707 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7708
7709 /* We received data from the HW, so stop the watchdog */
7710 dev->trans_start = jiffies;
7711
7712 /* We only process data packets if the
7713 * interface is open */
7714 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7715 skb_tailroom(rxb->skb))) {
7716 dev->stats.rx_errors++;
7717 priv->wstats.discard.misc++;
7718 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7719 return;
7720 } else if (unlikely(!netif_running(priv->net_dev))) {
7721 dev->stats.rx_dropped++;
7722 priv->wstats.discard.misc++;
7723 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7724 return;
7725 }
7726
7727 /* Advance skb->data to the start of the actual payload */
7728 skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data));
7729
7730 /* Set the size of the skb to the size of the frame */
7731 skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length));
7732
7733 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7734
7735 /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */
7736 hdr = (struct libipw_hdr_4addr *)rxb->skb->data;
7737 if (priv->ieee->iw_mode != IW_MODE_MONITOR &&
7738 (is_multicast_ether_addr(hdr->addr1) ?
7739 !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt))
7740 ipw_rebuild_decrypted_skb(priv, rxb->skb);
7741
7742 if (!libipw_rx(priv->ieee, rxb->skb, stats))
7743 dev->stats.rx_errors++;
7744 else { /* libipw_rx succeeded, so it now owns the SKB */
7745 rxb->skb = NULL;
7746 __ipw_led_activity_on(priv);
7747 }
7748 }
7749
7750 #ifdef CONFIG_IPW2200_RADIOTAP
7751 static void ipw_handle_data_packet_monitor(struct ipw_priv *priv,
7752 struct ipw_rx_mem_buffer *rxb,
7753 struct libipw_rx_stats *stats)
7754 {
7755 struct net_device *dev = priv->net_dev;
7756 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7757 struct ipw_rx_frame *frame = &pkt->u.frame;
7758
7759 /* initial pull of some data */
7760 u16 received_channel = frame->received_channel;
7761 u8 antennaAndPhy = frame->antennaAndPhy;
7762 s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM; /* call it signed anyhow */
7763 u16 pktrate = frame->rate;
7764
7765 /* Magic struct that slots into the radiotap header -- no reason
7766 * to build this manually element by element, we can write it much
7767 * more efficiently than we can parse it. ORDER MATTERS HERE */
7768 struct ipw_rt_hdr *ipw_rt;
7769
7770 unsigned short len = le16_to_cpu(pkt->u.frame.length);
7771
7772 /* We received data from the HW, so stop the watchdog */
7773 dev->trans_start = jiffies;
7774
7775 /* We only process data packets if the
7776 * interface is open */
7777 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7778 skb_tailroom(rxb->skb))) {
7779 dev->stats.rx_errors++;
7780 priv->wstats.discard.misc++;
7781 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7782 return;
7783 } else if (unlikely(!netif_running(priv->net_dev))) {
7784 dev->stats.rx_dropped++;
7785 priv->wstats.discard.misc++;
7786 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7787 return;
7788 }
7789
7790 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7791 * that now */
7792 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7793 /* FIXME: Should alloc bigger skb instead */
7794 dev->stats.rx_dropped++;
7795 priv->wstats.discard.misc++;
7796 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7797 return;
7798 }
7799
7800 /* copy the frame itself */
7801 memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr),
7802 rxb->skb->data + IPW_RX_FRAME_SIZE, len);
7803
7804 ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data;
7805
7806 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7807 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
7808 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total header+data */
7809
7810 /* Big bitfield of all the fields we provide in radiotap */
7811 ipw_rt->rt_hdr.it_present = cpu_to_le32(
7812 (1 << IEEE80211_RADIOTAP_TSFT) |
7813 (1 << IEEE80211_RADIOTAP_FLAGS) |
7814 (1 << IEEE80211_RADIOTAP_RATE) |
7815 (1 << IEEE80211_RADIOTAP_CHANNEL) |
7816 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7817 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
7818 (1 << IEEE80211_RADIOTAP_ANTENNA));
7819
7820 /* Zero the flags, we'll add to them as we go */
7821 ipw_rt->rt_flags = 0;
7822 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 |
7823 frame->parent_tsf[2] << 16 |
7824 frame->parent_tsf[1] << 8 |
7825 frame->parent_tsf[0]);
7826
7827 /* Convert signal to DBM */
7828 ipw_rt->rt_dbmsignal = antsignal;
7829 ipw_rt->rt_dbmnoise = (s8) le16_to_cpu(frame->noise);
7830
7831 /* Convert the channel data and set the flags */
7832 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel));
7833 if (received_channel > 14) { /* 802.11a */
7834 ipw_rt->rt_chbitmask =
7835 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7836 } else if (antennaAndPhy & 32) { /* 802.11b */
7837 ipw_rt->rt_chbitmask =
7838 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7839 } else { /* 802.11g */
7840 ipw_rt->rt_chbitmask =
7841 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7842 }
7843
7844 /* set the rate in multiples of 500k/s */
7845 switch (pktrate) {
7846 case IPW_TX_RATE_1MB:
7847 ipw_rt->rt_rate = 2;
7848 break;
7849 case IPW_TX_RATE_2MB:
7850 ipw_rt->rt_rate = 4;
7851 break;
7852 case IPW_TX_RATE_5MB:
7853 ipw_rt->rt_rate = 10;
7854 break;
7855 case IPW_TX_RATE_6MB:
7856 ipw_rt->rt_rate = 12;
7857 break;
7858 case IPW_TX_RATE_9MB:
7859 ipw_rt->rt_rate = 18;
7860 break;
7861 case IPW_TX_RATE_11MB:
7862 ipw_rt->rt_rate = 22;
7863 break;
7864 case IPW_TX_RATE_12MB:
7865 ipw_rt->rt_rate = 24;
7866 break;
7867 case IPW_TX_RATE_18MB:
7868 ipw_rt->rt_rate = 36;
7869 break;
7870 case IPW_TX_RATE_24MB:
7871 ipw_rt->rt_rate = 48;
7872 break;
7873 case IPW_TX_RATE_36MB:
7874 ipw_rt->rt_rate = 72;
7875 break;
7876 case IPW_TX_RATE_48MB:
7877 ipw_rt->rt_rate = 96;
7878 break;
7879 case IPW_TX_RATE_54MB:
7880 ipw_rt->rt_rate = 108;
7881 break;
7882 default:
7883 ipw_rt->rt_rate = 0;
7884 break;
7885 }
7886
7887 /* antenna number */
7888 ipw_rt->rt_antenna = (antennaAndPhy & 3); /* Is this right? */
7889
7890 /* set the preamble flag if we have it */
7891 if ((antennaAndPhy & 64))
7892 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7893
7894 /* Set the size of the skb to the size of the frame */
7895 skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr));
7896
7897 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7898
7899 if (!libipw_rx(priv->ieee, rxb->skb, stats))
7900 dev->stats.rx_errors++;
7901 else { /* libipw_rx succeeded, so it now owns the SKB */
7902 rxb->skb = NULL;
7903 /* no LED during capture */
7904 }
7905 }
7906 #endif
7907
7908 #ifdef CONFIG_IPW2200_PROMISCUOUS
7909 #define libipw_is_probe_response(fc) \
7910 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \
7911 (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP )
7912
7913 #define libipw_is_management(fc) \
7914 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
7915
7916 #define libipw_is_control(fc) \
7917 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
7918
7919 #define libipw_is_data(fc) \
7920 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
7921
7922 #define libipw_is_assoc_request(fc) \
7923 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ)
7924
7925 #define libipw_is_reassoc_request(fc) \
7926 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
7927
7928 static void ipw_handle_promiscuous_rx(struct ipw_priv *priv,
7929 struct ipw_rx_mem_buffer *rxb,
7930 struct libipw_rx_stats *stats)
7931 {
7932 struct net_device *dev = priv->prom_net_dev;
7933 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7934 struct ipw_rx_frame *frame = &pkt->u.frame;
7935 struct ipw_rt_hdr *ipw_rt;
7936
7937 /* First cache any information we need before we overwrite
7938 * the information provided in the skb from the hardware */
7939 struct ieee80211_hdr *hdr;
7940 u16 channel = frame->received_channel;
7941 u8 phy_flags = frame->antennaAndPhy;
7942 s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM;
7943 s8 noise = (s8) le16_to_cpu(frame->noise);
7944 u8 rate = frame->rate;
7945 unsigned short len = le16_to_cpu(pkt->u.frame.length);
7946 struct sk_buff *skb;
7947 int hdr_only = 0;
7948 u16 filter = priv->prom_priv->filter;
7949
7950 /* If the filter is set to not include Rx frames then return */
7951 if (filter & IPW_PROM_NO_RX)
7952 return;
7953
7954 /* We received data from the HW, so stop the watchdog */
7955 dev->trans_start = jiffies;
7956
7957 if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) {
7958 dev->stats.rx_errors++;
7959 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7960 return;
7961 }
7962
7963 /* We only process data packets if the interface is open */
7964 if (unlikely(!netif_running(dev))) {
7965 dev->stats.rx_dropped++;
7966 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7967 return;
7968 }
7969
7970 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7971 * that now */
7972 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7973 /* FIXME: Should alloc bigger skb instead */
7974 dev->stats.rx_dropped++;
7975 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7976 return;
7977 }
7978
7979 hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE;
7980 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) {
7981 if (filter & IPW_PROM_NO_MGMT)
7982 return;
7983 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
7984 hdr_only = 1;
7985 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) {
7986 if (filter & IPW_PROM_NO_CTL)
7987 return;
7988 if (filter & IPW_PROM_CTL_HEADER_ONLY)
7989 hdr_only = 1;
7990 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) {
7991 if (filter & IPW_PROM_NO_DATA)
7992 return;
7993 if (filter & IPW_PROM_DATA_HEADER_ONLY)
7994 hdr_only = 1;
7995 }
7996
7997 /* Copy the SKB since this is for the promiscuous side */
7998 skb = skb_copy(rxb->skb, GFP_ATOMIC);
7999 if (skb == NULL) {
8000 IPW_ERROR("skb_clone failed for promiscuous copy.\n");
8001 return;
8002 }
8003
8004 /* copy the frame data to write after where the radiotap header goes */
8005 ipw_rt = (void *)skb->data;
8006
8007 if (hdr_only)
8008 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control));
8009
8010 memcpy(ipw_rt->payload, hdr, len);
8011
8012 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
8013 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
8014 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*ipw_rt)); /* total header+data */
8015
8016 /* Set the size of the skb to the size of the frame */
8017 skb_put(skb, sizeof(*ipw_rt) + len);
8018
8019 /* Big bitfield of all the fields we provide in radiotap */
8020 ipw_rt->rt_hdr.it_present = cpu_to_le32(
8021 (1 << IEEE80211_RADIOTAP_TSFT) |
8022 (1 << IEEE80211_RADIOTAP_FLAGS) |
8023 (1 << IEEE80211_RADIOTAP_RATE) |
8024 (1 << IEEE80211_RADIOTAP_CHANNEL) |
8025 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
8026 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
8027 (1 << IEEE80211_RADIOTAP_ANTENNA));
8028
8029 /* Zero the flags, we'll add to them as we go */
8030 ipw_rt->rt_flags = 0;
8031 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 |
8032 frame->parent_tsf[2] << 16 |
8033 frame->parent_tsf[1] << 8 |
8034 frame->parent_tsf[0]);
8035
8036 /* Convert to DBM */
8037 ipw_rt->rt_dbmsignal = signal;
8038 ipw_rt->rt_dbmnoise = noise;
8039
8040 /* Convert the channel data and set the flags */
8041 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel));
8042 if (channel > 14) { /* 802.11a */
8043 ipw_rt->rt_chbitmask =
8044 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
8045 } else if (phy_flags & (1 << 5)) { /* 802.11b */
8046 ipw_rt->rt_chbitmask =
8047 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
8048 } else { /* 802.11g */
8049 ipw_rt->rt_chbitmask =
8050 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
8051 }
8052
8053 /* set the rate in multiples of 500k/s */
8054 switch (rate) {
8055 case IPW_TX_RATE_1MB:
8056 ipw_rt->rt_rate = 2;
8057 break;
8058 case IPW_TX_RATE_2MB:
8059 ipw_rt->rt_rate = 4;
8060 break;
8061 case IPW_TX_RATE_5MB:
8062 ipw_rt->rt_rate = 10;
8063 break;
8064 case IPW_TX_RATE_6MB:
8065 ipw_rt->rt_rate = 12;
8066 break;
8067 case IPW_TX_RATE_9MB:
8068 ipw_rt->rt_rate = 18;
8069 break;
8070 case IPW_TX_RATE_11MB:
8071 ipw_rt->rt_rate = 22;
8072 break;
8073 case IPW_TX_RATE_12MB:
8074 ipw_rt->rt_rate = 24;
8075 break;
8076 case IPW_TX_RATE_18MB:
8077 ipw_rt->rt_rate = 36;
8078 break;
8079 case IPW_TX_RATE_24MB:
8080 ipw_rt->rt_rate = 48;
8081 break;
8082 case IPW_TX_RATE_36MB:
8083 ipw_rt->rt_rate = 72;
8084 break;
8085 case IPW_TX_RATE_48MB:
8086 ipw_rt->rt_rate = 96;
8087 break;
8088 case IPW_TX_RATE_54MB:
8089 ipw_rt->rt_rate = 108;
8090 break;
8091 default:
8092 ipw_rt->rt_rate = 0;
8093 break;
8094 }
8095
8096 /* antenna number */
8097 ipw_rt->rt_antenna = (phy_flags & 3);
8098
8099 /* set the preamble flag if we have it */
8100 if (phy_flags & (1 << 6))
8101 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
8102
8103 IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len);
8104
8105 if (!libipw_rx(priv->prom_priv->ieee, skb, stats)) {
8106 dev->stats.rx_errors++;
8107 dev_kfree_skb_any(skb);
8108 }
8109 }
8110 #endif
8111
8112 static int is_network_packet(struct ipw_priv *priv,
8113 struct libipw_hdr_4addr *header)
8114 {
8115 /* Filter incoming packets to determine if they are targeted toward
8116 * this network, discarding packets coming from ourselves */
8117 switch (priv->ieee->iw_mode) {
8118 case IW_MODE_ADHOC: /* Header: Dest. | Source | BSSID */
8119 /* packets from our adapter are dropped (echo) */
8120 if (ether_addr_equal(header->addr2, priv->net_dev->dev_addr))
8121 return 0;
8122
8123 /* {broad,multi}cast packets to our BSSID go through */
8124 if (is_multicast_ether_addr(header->addr1))
8125 return ether_addr_equal(header->addr3, priv->bssid);
8126
8127 /* packets to our adapter go through */
8128 return ether_addr_equal(header->addr1,
8129 priv->net_dev->dev_addr);
8130
8131 case IW_MODE_INFRA: /* Header: Dest. | BSSID | Source */
8132 /* packets from our adapter are dropped (echo) */
8133 if (ether_addr_equal(header->addr3, priv->net_dev->dev_addr))
8134 return 0;
8135
8136 /* {broad,multi}cast packets to our BSS go through */
8137 if (is_multicast_ether_addr(header->addr1))
8138 return ether_addr_equal(header->addr2, priv->bssid);
8139
8140 /* packets to our adapter go through */
8141 return ether_addr_equal(header->addr1,
8142 priv->net_dev->dev_addr);
8143 }
8144
8145 return 1;
8146 }
8147
8148 #define IPW_PACKET_RETRY_TIME HZ
8149
8150 static int is_duplicate_packet(struct ipw_priv *priv,
8151 struct libipw_hdr_4addr *header)
8152 {
8153 u16 sc = le16_to_cpu(header->seq_ctl);
8154 u16 seq = WLAN_GET_SEQ_SEQ(sc);
8155 u16 frag = WLAN_GET_SEQ_FRAG(sc);
8156 u16 *last_seq, *last_frag;
8157 unsigned long *last_time;
8158
8159 switch (priv->ieee->iw_mode) {
8160 case IW_MODE_ADHOC:
8161 {
8162 struct list_head *p;
8163 struct ipw_ibss_seq *entry = NULL;
8164 u8 *mac = header->addr2;
8165 int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE;
8166
8167 list_for_each(p, &priv->ibss_mac_hash[index]) {
8168 entry =
8169 list_entry(p, struct ipw_ibss_seq, list);
8170 if (ether_addr_equal(entry->mac, mac))
8171 break;
8172 }
8173 if (p == &priv->ibss_mac_hash[index]) {
8174 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
8175 if (!entry) {
8176 IPW_ERROR
8177 ("Cannot malloc new mac entry\n");
8178 return 0;
8179 }
8180 memcpy(entry->mac, mac, ETH_ALEN);
8181 entry->seq_num = seq;
8182 entry->frag_num = frag;
8183 entry->packet_time = jiffies;
8184 list_add(&entry->list,
8185 &priv->ibss_mac_hash[index]);
8186 return 0;
8187 }
8188 last_seq = &entry->seq_num;
8189 last_frag = &entry->frag_num;
8190 last_time = &entry->packet_time;
8191 break;
8192 }
8193 case IW_MODE_INFRA:
8194 last_seq = &priv->last_seq_num;
8195 last_frag = &priv->last_frag_num;
8196 last_time = &priv->last_packet_time;
8197 break;
8198 default:
8199 return 0;
8200 }
8201 if ((*last_seq == seq) &&
8202 time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) {
8203 if (*last_frag == frag)
8204 goto drop;
8205 if (*last_frag + 1 != frag)
8206 /* out-of-order fragment */
8207 goto drop;
8208 } else
8209 *last_seq = seq;
8210
8211 *last_frag = frag;
8212 *last_time = jiffies;
8213 return 0;
8214
8215 drop:
8216 /* Comment this line now since we observed the card receives
8217 * duplicate packets but the FCTL_RETRY bit is not set in the
8218 * IBSS mode with fragmentation enabled.
8219 BUG_ON(!(le16_to_cpu(header->frame_control) & IEEE80211_FCTL_RETRY)); */
8220 return 1;
8221 }
8222
8223 static void ipw_handle_mgmt_packet(struct ipw_priv *priv,
8224 struct ipw_rx_mem_buffer *rxb,
8225 struct libipw_rx_stats *stats)
8226 {
8227 struct sk_buff *skb = rxb->skb;
8228 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data;
8229 struct libipw_hdr_4addr *header = (struct libipw_hdr_4addr *)
8230 (skb->data + IPW_RX_FRAME_SIZE);
8231
8232 libipw_rx_mgt(priv->ieee, header, stats);
8233
8234 if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
8235 ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8236 IEEE80211_STYPE_PROBE_RESP) ||
8237 (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8238 IEEE80211_STYPE_BEACON))) {
8239 if (ether_addr_equal(header->addr3, priv->bssid))
8240 ipw_add_station(priv, header->addr2);
8241 }
8242
8243 if (priv->config & CFG_NET_STATS) {
8244 IPW_DEBUG_HC("sending stat packet\n");
8245
8246 /* Set the size of the skb to the size of the full
8247 * ipw header and 802.11 frame */
8248 skb_put(skb, le16_to_cpu(pkt->u.frame.length) +
8249 IPW_RX_FRAME_SIZE);
8250
8251 /* Advance past the ipw packet header to the 802.11 frame */
8252 skb_pull(skb, IPW_RX_FRAME_SIZE);
8253
8254 /* Push the libipw_rx_stats before the 802.11 frame */
8255 memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats));
8256
8257 skb->dev = priv->ieee->dev;
8258
8259 /* Point raw at the libipw_stats */
8260 skb_reset_mac_header(skb);
8261
8262 skb->pkt_type = PACKET_OTHERHOST;
8263 skb->protocol = cpu_to_be16(ETH_P_80211_STATS);
8264 memset(skb->cb, 0, sizeof(rxb->skb->cb));
8265 netif_rx(skb);
8266 rxb->skb = NULL;
8267 }
8268 }
8269
8270 /*
8271 * Main entry function for receiving a packet with 80211 headers. This
8272 * should be called when ever the FW has notified us that there is a new
8273 * skb in the receive queue.
8274 */
8275 static void ipw_rx(struct ipw_priv *priv)
8276 {
8277 struct ipw_rx_mem_buffer *rxb;
8278 struct ipw_rx_packet *pkt;
8279 struct libipw_hdr_4addr *header;
8280 u32 r, w, i;
8281 u8 network_packet;
8282 u8 fill_rx = 0;
8283
8284 r = ipw_read32(priv, IPW_RX_READ_INDEX);
8285 w = ipw_read32(priv, IPW_RX_WRITE_INDEX);
8286 i = priv->rxq->read;
8287
8288 if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2))
8289 fill_rx = 1;
8290
8291 while (i != r) {
8292 rxb = priv->rxq->queue[i];
8293 if (unlikely(rxb == NULL)) {
8294 printk(KERN_CRIT "Queue not allocated!\n");
8295 break;
8296 }
8297 priv->rxq->queue[i] = NULL;
8298
8299 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
8300 IPW_RX_BUF_SIZE,
8301 PCI_DMA_FROMDEVICE);
8302
8303 pkt = (struct ipw_rx_packet *)rxb->skb->data;
8304 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
8305 pkt->header.message_type,
8306 pkt->header.rx_seq_num, pkt->header.control_bits);
8307
8308 switch (pkt->header.message_type) {
8309 case RX_FRAME_TYPE: /* 802.11 frame */ {
8310 struct libipw_rx_stats stats = {
8311 .rssi = pkt->u.frame.rssi_dbm -
8312 IPW_RSSI_TO_DBM,
8313 .signal =
8314 pkt->u.frame.rssi_dbm -
8315 IPW_RSSI_TO_DBM + 0x100,
8316 .noise =
8317 le16_to_cpu(pkt->u.frame.noise),
8318 .rate = pkt->u.frame.rate,
8319 .mac_time = jiffies,
8320 .received_channel =
8321 pkt->u.frame.received_channel,
8322 .freq =
8323 (pkt->u.frame.
8324 control & (1 << 0)) ?
8325 LIBIPW_24GHZ_BAND :
8326 LIBIPW_52GHZ_BAND,
8327 .len = le16_to_cpu(pkt->u.frame.length),
8328 };
8329
8330 if (stats.rssi != 0)
8331 stats.mask |= LIBIPW_STATMASK_RSSI;
8332 if (stats.signal != 0)
8333 stats.mask |= LIBIPW_STATMASK_SIGNAL;
8334 if (stats.noise != 0)
8335 stats.mask |= LIBIPW_STATMASK_NOISE;
8336 if (stats.rate != 0)
8337 stats.mask |= LIBIPW_STATMASK_RATE;
8338
8339 priv->rx_packets++;
8340
8341 #ifdef CONFIG_IPW2200_PROMISCUOUS
8342 if (priv->prom_net_dev && netif_running(priv->prom_net_dev))
8343 ipw_handle_promiscuous_rx(priv, rxb, &stats);
8344 #endif
8345
8346 #ifdef CONFIG_IPW2200_MONITOR
8347 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8348 #ifdef CONFIG_IPW2200_RADIOTAP
8349
8350 ipw_handle_data_packet_monitor(priv,
8351 rxb,
8352 &stats);
8353 #else
8354 ipw_handle_data_packet(priv, rxb,
8355 &stats);
8356 #endif
8357 break;
8358 }
8359 #endif
8360
8361 header =
8362 (struct libipw_hdr_4addr *)(rxb->skb->
8363 data +
8364 IPW_RX_FRAME_SIZE);
8365 /* TODO: Check Ad-Hoc dest/source and make sure
8366 * that we are actually parsing these packets
8367 * correctly -- we should probably use the
8368 * frame control of the packet and disregard
8369 * the current iw_mode */
8370
8371 network_packet =
8372 is_network_packet(priv, header);
8373 if (network_packet && priv->assoc_network) {
8374 priv->assoc_network->stats.rssi =
8375 stats.rssi;
8376 priv->exp_avg_rssi =
8377 exponential_average(priv->exp_avg_rssi,
8378 stats.rssi, DEPTH_RSSI);
8379 }
8380
8381 IPW_DEBUG_RX("Frame: len=%u\n",
8382 le16_to_cpu(pkt->u.frame.length));
8383
8384 if (le16_to_cpu(pkt->u.frame.length) <
8385 libipw_get_hdrlen(le16_to_cpu(
8386 header->frame_ctl))) {
8387 IPW_DEBUG_DROP
8388 ("Received packet is too small. "
8389 "Dropping.\n");
8390 priv->net_dev->stats.rx_errors++;
8391 priv->wstats.discard.misc++;
8392 break;
8393 }
8394
8395 switch (WLAN_FC_GET_TYPE
8396 (le16_to_cpu(header->frame_ctl))) {
8397
8398 case IEEE80211_FTYPE_MGMT:
8399 ipw_handle_mgmt_packet(priv, rxb,
8400 &stats);
8401 break;
8402
8403 case IEEE80211_FTYPE_CTL:
8404 break;
8405
8406 case IEEE80211_FTYPE_DATA:
8407 if (unlikely(!network_packet ||
8408 is_duplicate_packet(priv,
8409 header)))
8410 {
8411 IPW_DEBUG_DROP("Dropping: "
8412 "%pM, "
8413 "%pM, "
8414 "%pM\n",
8415 header->addr1,
8416 header->addr2,
8417 header->addr3);
8418 break;
8419 }
8420
8421 ipw_handle_data_packet(priv, rxb,
8422 &stats);
8423
8424 break;
8425 }
8426 break;
8427 }
8428
8429 case RX_HOST_NOTIFICATION_TYPE:{
8430 IPW_DEBUG_RX
8431 ("Notification: subtype=%02X flags=%02X size=%d\n",
8432 pkt->u.notification.subtype,
8433 pkt->u.notification.flags,
8434 le16_to_cpu(pkt->u.notification.size));
8435 ipw_rx_notification(priv, &pkt->u.notification);
8436 break;
8437 }
8438
8439 default:
8440 IPW_DEBUG_RX("Bad Rx packet of type %d\n",
8441 pkt->header.message_type);
8442 break;
8443 }
8444
8445 /* For now we just don't re-use anything. We can tweak this
8446 * later to try and re-use notification packets and SKBs that
8447 * fail to Rx correctly */
8448 if (rxb->skb != NULL) {
8449 dev_kfree_skb_any(rxb->skb);
8450 rxb->skb = NULL;
8451 }
8452
8453 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
8454 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
8455 list_add_tail(&rxb->list, &priv->rxq->rx_used);
8456
8457 i = (i + 1) % RX_QUEUE_SIZE;
8458
8459 /* If there are a lot of unsued frames, restock the Rx queue
8460 * so the ucode won't assert */
8461 if (fill_rx) {
8462 priv->rxq->read = i;
8463 ipw_rx_queue_replenish(priv);
8464 }
8465 }
8466
8467 /* Backtrack one entry */
8468 priv->rxq->read = i;
8469 ipw_rx_queue_restock(priv);
8470 }
8471
8472 #define DEFAULT_RTS_THRESHOLD 2304U
8473 #define MIN_RTS_THRESHOLD 1U
8474 #define MAX_RTS_THRESHOLD 2304U
8475 #define DEFAULT_BEACON_INTERVAL 100U
8476 #define DEFAULT_SHORT_RETRY_LIMIT 7U
8477 #define DEFAULT_LONG_RETRY_LIMIT 4U
8478
8479 /**
8480 * ipw_sw_reset
8481 * @option: options to control different reset behaviour
8482 * 0 = reset everything except the 'disable' module_param
8483 * 1 = reset everything and print out driver info (for probe only)
8484 * 2 = reset everything
8485 */
8486 static int ipw_sw_reset(struct ipw_priv *priv, int option)
8487 {
8488 int band, modulation;
8489 int old_mode = priv->ieee->iw_mode;
8490
8491 /* Initialize module parameter values here */
8492 priv->config = 0;
8493
8494 /* We default to disabling the LED code as right now it causes
8495 * too many systems to lock up... */
8496 if (!led_support)
8497 priv->config |= CFG_NO_LED;
8498
8499 if (associate)
8500 priv->config |= CFG_ASSOCIATE;
8501 else
8502 IPW_DEBUG_INFO("Auto associate disabled.\n");
8503
8504 if (auto_create)
8505 priv->config |= CFG_ADHOC_CREATE;
8506 else
8507 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
8508
8509 priv->config &= ~CFG_STATIC_ESSID;
8510 priv->essid_len = 0;
8511 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
8512
8513 if (disable && option) {
8514 priv->status |= STATUS_RF_KILL_SW;
8515 IPW_DEBUG_INFO("Radio disabled.\n");
8516 }
8517
8518 if (default_channel != 0) {
8519 priv->config |= CFG_STATIC_CHANNEL;
8520 priv->channel = default_channel;
8521 IPW_DEBUG_INFO("Bind to static channel %d\n", default_channel);
8522 /* TODO: Validate that provided channel is in range */
8523 }
8524 #ifdef CONFIG_IPW2200_QOS
8525 ipw_qos_init(priv, qos_enable, qos_burst_enable,
8526 burst_duration_CCK, burst_duration_OFDM);
8527 #endif /* CONFIG_IPW2200_QOS */
8528
8529 switch (network_mode) {
8530 case 1:
8531 priv->ieee->iw_mode = IW_MODE_ADHOC;
8532 priv->net_dev->type = ARPHRD_ETHER;
8533
8534 break;
8535 #ifdef CONFIG_IPW2200_MONITOR
8536 case 2:
8537 priv->ieee->iw_mode = IW_MODE_MONITOR;
8538 #ifdef CONFIG_IPW2200_RADIOTAP
8539 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8540 #else
8541 priv->net_dev->type = ARPHRD_IEEE80211;
8542 #endif
8543 break;
8544 #endif
8545 default:
8546 case 0:
8547 priv->net_dev->type = ARPHRD_ETHER;
8548 priv->ieee->iw_mode = IW_MODE_INFRA;
8549 break;
8550 }
8551
8552 if (hwcrypto) {
8553 priv->ieee->host_encrypt = 0;
8554 priv->ieee->host_encrypt_msdu = 0;
8555 priv->ieee->host_decrypt = 0;
8556 priv->ieee->host_mc_decrypt = 0;
8557 }
8558 IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off");
8559
8560 /* IPW2200/2915 is abled to do hardware fragmentation. */
8561 priv->ieee->host_open_frag = 0;
8562
8563 if ((priv->pci_dev->device == 0x4223) ||
8564 (priv->pci_dev->device == 0x4224)) {
8565 if (option == 1)
8566 printk(KERN_INFO DRV_NAME
8567 ": Detected Intel PRO/Wireless 2915ABG Network "
8568 "Connection\n");
8569 priv->ieee->abg_true = 1;
8570 band = LIBIPW_52GHZ_BAND | LIBIPW_24GHZ_BAND;
8571 modulation = LIBIPW_OFDM_MODULATION |
8572 LIBIPW_CCK_MODULATION;
8573 priv->adapter = IPW_2915ABG;
8574 priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B;
8575 } else {
8576 if (option == 1)
8577 printk(KERN_INFO DRV_NAME
8578 ": Detected Intel PRO/Wireless 2200BG Network "
8579 "Connection\n");
8580
8581 priv->ieee->abg_true = 0;
8582 band = LIBIPW_24GHZ_BAND;
8583 modulation = LIBIPW_OFDM_MODULATION |
8584 LIBIPW_CCK_MODULATION;
8585 priv->adapter = IPW_2200BG;
8586 priv->ieee->mode = IEEE_G | IEEE_B;
8587 }
8588
8589 priv->ieee->freq_band = band;
8590 priv->ieee->modulation = modulation;
8591
8592 priv->rates_mask = LIBIPW_DEFAULT_RATES_MASK;
8593
8594 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8595 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8596
8597 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
8598 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
8599 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
8600
8601 /* If power management is turned on, default to AC mode */
8602 priv->power_mode = IPW_POWER_AC;
8603 priv->tx_power = IPW_TX_POWER_DEFAULT;
8604
8605 return old_mode == priv->ieee->iw_mode;
8606 }
8607
8608 /*
8609 * This file defines the Wireless Extension handlers. It does not
8610 * define any methods of hardware manipulation and relies on the
8611 * functions defined in ipw_main to provide the HW interaction.
8612 *
8613 * The exception to this is the use of the ipw_get_ordinal()
8614 * function used to poll the hardware vs. making unnecessary calls.
8615 *
8616 */
8617
8618 static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
8619 {
8620 if (channel == 0) {
8621 IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
8622 priv->config &= ~CFG_STATIC_CHANNEL;
8623 IPW_DEBUG_ASSOC("Attempting to associate with new "
8624 "parameters.\n");
8625 ipw_associate(priv);
8626 return 0;
8627 }
8628
8629 priv->config |= CFG_STATIC_CHANNEL;
8630
8631 if (priv->channel == channel) {
8632 IPW_DEBUG_INFO("Request to set channel to current value (%d)\n",
8633 channel);
8634 return 0;
8635 }
8636
8637 IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
8638 priv->channel = channel;
8639
8640 #ifdef CONFIG_IPW2200_MONITOR
8641 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8642 int i;
8643 if (priv->status & STATUS_SCANNING) {
8644 IPW_DEBUG_SCAN("Scan abort triggered due to "
8645 "channel change.\n");
8646 ipw_abort_scan(priv);
8647 }
8648
8649 for (i = 1000; i && (priv->status & STATUS_SCANNING); i--)
8650 udelay(10);
8651
8652 if (priv->status & STATUS_SCANNING)
8653 IPW_DEBUG_SCAN("Still scanning...\n");
8654 else
8655 IPW_DEBUG_SCAN("Took %dms to abort current scan\n",
8656 1000 - i);
8657
8658 return 0;
8659 }
8660 #endif /* CONFIG_IPW2200_MONITOR */
8661
8662 /* Network configuration changed -- force [re]association */
8663 IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n");
8664 if (!ipw_disassociate(priv))
8665 ipw_associate(priv);
8666
8667 return 0;
8668 }
8669
8670 static int ipw_wx_set_freq(struct net_device *dev,
8671 struct iw_request_info *info,
8672 union iwreq_data *wrqu, char *extra)
8673 {
8674 struct ipw_priv *priv = libipw_priv(dev);
8675 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
8676 struct iw_freq *fwrq = &wrqu->freq;
8677 int ret = 0, i;
8678 u8 channel, flags;
8679 int band;
8680
8681 if (fwrq->m == 0) {
8682 IPW_DEBUG_WX("SET Freq/Channel -> any\n");
8683 mutex_lock(&priv->mutex);
8684 ret = ipw_set_channel(priv, 0);
8685 mutex_unlock(&priv->mutex);
8686 return ret;
8687 }
8688 /* if setting by freq convert to channel */
8689 if (fwrq->e == 1) {
8690 channel = libipw_freq_to_channel(priv->ieee, fwrq->m);
8691 if (channel == 0)
8692 return -EINVAL;
8693 } else
8694 channel = fwrq->m;
8695
8696 if (!(band = libipw_is_valid_channel(priv->ieee, channel)))
8697 return -EINVAL;
8698
8699 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
8700 i = libipw_channel_to_index(priv->ieee, channel);
8701 if (i == -1)
8702 return -EINVAL;
8703
8704 flags = (band == LIBIPW_24GHZ_BAND) ?
8705 geo->bg[i].flags : geo->a[i].flags;
8706 if (flags & LIBIPW_CH_PASSIVE_ONLY) {
8707 IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n");
8708 return -EINVAL;
8709 }
8710 }
8711
8712 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m);
8713 mutex_lock(&priv->mutex);
8714 ret = ipw_set_channel(priv, channel);
8715 mutex_unlock(&priv->mutex);
8716 return ret;
8717 }
8718
8719 static int ipw_wx_get_freq(struct net_device *dev,
8720 struct iw_request_info *info,
8721 union iwreq_data *wrqu, char *extra)
8722 {
8723 struct ipw_priv *priv = libipw_priv(dev);
8724
8725 wrqu->freq.e = 0;
8726
8727 /* If we are associated, trying to associate, or have a statically
8728 * configured CHANNEL then return that; otherwise return ANY */
8729 mutex_lock(&priv->mutex);
8730 if (priv->config & CFG_STATIC_CHANNEL ||
8731 priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) {
8732 int i;
8733
8734 i = libipw_channel_to_index(priv->ieee, priv->channel);
8735 BUG_ON(i == -1);
8736 wrqu->freq.e = 1;
8737
8738 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
8739 case LIBIPW_52GHZ_BAND:
8740 wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000;
8741 break;
8742
8743 case LIBIPW_24GHZ_BAND:
8744 wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000;
8745 break;
8746
8747 default:
8748 BUG();
8749 }
8750 } else
8751 wrqu->freq.m = 0;
8752
8753 mutex_unlock(&priv->mutex);
8754 IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel);
8755 return 0;
8756 }
8757
8758 static int ipw_wx_set_mode(struct net_device *dev,
8759 struct iw_request_info *info,
8760 union iwreq_data *wrqu, char *extra)
8761 {
8762 struct ipw_priv *priv = libipw_priv(dev);
8763 int err = 0;
8764
8765 IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
8766
8767 switch (wrqu->mode) {
8768 #ifdef CONFIG_IPW2200_MONITOR
8769 case IW_MODE_MONITOR:
8770 #endif
8771 case IW_MODE_ADHOC:
8772 case IW_MODE_INFRA:
8773 break;
8774 case IW_MODE_AUTO:
8775 wrqu->mode = IW_MODE_INFRA;
8776 break;
8777 default:
8778 return -EINVAL;
8779 }
8780 if (wrqu->mode == priv->ieee->iw_mode)
8781 return 0;
8782
8783 mutex_lock(&priv->mutex);
8784
8785 ipw_sw_reset(priv, 0);
8786
8787 #ifdef CONFIG_IPW2200_MONITOR
8788 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8789 priv->net_dev->type = ARPHRD_ETHER;
8790
8791 if (wrqu->mode == IW_MODE_MONITOR)
8792 #ifdef CONFIG_IPW2200_RADIOTAP
8793 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8794 #else
8795 priv->net_dev->type = ARPHRD_IEEE80211;
8796 #endif
8797 #endif /* CONFIG_IPW2200_MONITOR */
8798
8799 /* Free the existing firmware and reset the fw_loaded
8800 * flag so ipw_load() will bring in the new firmware */
8801 free_firmware();
8802
8803 priv->ieee->iw_mode = wrqu->mode;
8804
8805 schedule_work(&priv->adapter_restart);
8806 mutex_unlock(&priv->mutex);
8807 return err;
8808 }
8809
8810 static int ipw_wx_get_mode(struct net_device *dev,
8811 struct iw_request_info *info,
8812 union iwreq_data *wrqu, char *extra)
8813 {
8814 struct ipw_priv *priv = libipw_priv(dev);
8815 mutex_lock(&priv->mutex);
8816 wrqu->mode = priv->ieee->iw_mode;
8817 IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
8818 mutex_unlock(&priv->mutex);
8819 return 0;
8820 }
8821
8822 /* Values are in microsecond */
8823 static const s32 timeout_duration[] = {
8824 350000,
8825 250000,
8826 75000,
8827 37000,
8828 25000,
8829 };
8830
8831 static const s32 period_duration[] = {
8832 400000,
8833 700000,
8834 1000000,
8835 1000000,
8836 1000000
8837 };
8838
8839 static int ipw_wx_get_range(struct net_device *dev,
8840 struct iw_request_info *info,
8841 union iwreq_data *wrqu, char *extra)
8842 {
8843 struct ipw_priv *priv = libipw_priv(dev);
8844 struct iw_range *range = (struct iw_range *)extra;
8845 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
8846 int i = 0, j;
8847
8848 wrqu->data.length = sizeof(*range);
8849 memset(range, 0, sizeof(*range));
8850
8851 /* 54Mbs == ~27 Mb/s real (802.11g) */
8852 range->throughput = 27 * 1000 * 1000;
8853
8854 range->max_qual.qual = 100;
8855 /* TODO: Find real max RSSI and stick here */
8856 range->max_qual.level = 0;
8857 range->max_qual.noise = 0;
8858 range->max_qual.updated = 7; /* Updated all three */
8859
8860 range->avg_qual.qual = 70;
8861 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
8862 range->avg_qual.level = 0; /* FIXME to real average level */
8863 range->avg_qual.noise = 0;
8864 range->avg_qual.updated = 7; /* Updated all three */
8865 mutex_lock(&priv->mutex);
8866 range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES);
8867
8868 for (i = 0; i < range->num_bitrates; i++)
8869 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
8870 500000;
8871
8872 range->max_rts = DEFAULT_RTS_THRESHOLD;
8873 range->min_frag = MIN_FRAG_THRESHOLD;
8874 range->max_frag = MAX_FRAG_THRESHOLD;
8875
8876 range->encoding_size[0] = 5;
8877 range->encoding_size[1] = 13;
8878 range->num_encoding_sizes = 2;
8879 range->max_encoding_tokens = WEP_KEYS;
8880
8881 /* Set the Wireless Extension versions */
8882 range->we_version_compiled = WIRELESS_EXT;
8883 range->we_version_source = 18;
8884
8885 i = 0;
8886 if (priv->ieee->mode & (IEEE_B | IEEE_G)) {
8887 for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) {
8888 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8889 (geo->bg[j].flags & LIBIPW_CH_PASSIVE_ONLY))
8890 continue;
8891
8892 range->freq[i].i = geo->bg[j].channel;
8893 range->freq[i].m = geo->bg[j].freq * 100000;
8894 range->freq[i].e = 1;
8895 i++;
8896 }
8897 }
8898
8899 if (priv->ieee->mode & IEEE_A) {
8900 for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) {
8901 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8902 (geo->a[j].flags & LIBIPW_CH_PASSIVE_ONLY))
8903 continue;
8904
8905 range->freq[i].i = geo->a[j].channel;
8906 range->freq[i].m = geo->a[j].freq * 100000;
8907 range->freq[i].e = 1;
8908 i++;
8909 }
8910 }
8911
8912 range->num_channels = i;
8913 range->num_frequency = i;
8914
8915 mutex_unlock(&priv->mutex);
8916
8917 /* Event capability (kernel + driver) */
8918 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
8919 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
8920 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
8921 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
8922 range->event_capa[1] = IW_EVENT_CAPA_K_1;
8923
8924 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
8925 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
8926
8927 range->scan_capa = IW_SCAN_CAPA_ESSID | IW_SCAN_CAPA_TYPE;
8928
8929 IPW_DEBUG_WX("GET Range\n");
8930 return 0;
8931 }
8932
8933 static int ipw_wx_set_wap(struct net_device *dev,
8934 struct iw_request_info *info,
8935 union iwreq_data *wrqu, char *extra)
8936 {
8937 struct ipw_priv *priv = libipw_priv(dev);
8938
8939 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
8940 return -EINVAL;
8941 mutex_lock(&priv->mutex);
8942 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
8943 is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
8944 /* we disable mandatory BSSID association */
8945 IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
8946 priv->config &= ~CFG_STATIC_BSSID;
8947 IPW_DEBUG_ASSOC("Attempting to associate with new "
8948 "parameters.\n");
8949 ipw_associate(priv);
8950 mutex_unlock(&priv->mutex);
8951 return 0;
8952 }
8953
8954 priv->config |= CFG_STATIC_BSSID;
8955 if (ether_addr_equal(priv->bssid, wrqu->ap_addr.sa_data)) {
8956 IPW_DEBUG_WX("BSSID set to current BSSID.\n");
8957 mutex_unlock(&priv->mutex);
8958 return 0;
8959 }
8960
8961 IPW_DEBUG_WX("Setting mandatory BSSID to %pM\n",
8962 wrqu->ap_addr.sa_data);
8963
8964 memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
8965
8966 /* Network configuration changed -- force [re]association */
8967 IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n");
8968 if (!ipw_disassociate(priv))
8969 ipw_associate(priv);
8970
8971 mutex_unlock(&priv->mutex);
8972 return 0;
8973 }
8974
8975 static int ipw_wx_get_wap(struct net_device *dev,
8976 struct iw_request_info *info,
8977 union iwreq_data *wrqu, char *extra)
8978 {
8979 struct ipw_priv *priv = libipw_priv(dev);
8980
8981 /* If we are associated, trying to associate, or have a statically
8982 * configured BSSID then return that; otherwise return ANY */
8983 mutex_lock(&priv->mutex);
8984 if (priv->config & CFG_STATIC_BSSID ||
8985 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8986 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
8987 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
8988 } else
8989 eth_zero_addr(wrqu->ap_addr.sa_data);
8990
8991 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n",
8992 wrqu->ap_addr.sa_data);
8993 mutex_unlock(&priv->mutex);
8994 return 0;
8995 }
8996
8997 static int ipw_wx_set_essid(struct net_device *dev,
8998 struct iw_request_info *info,
8999 union iwreq_data *wrqu, char *extra)
9000 {
9001 struct ipw_priv *priv = libipw_priv(dev);
9002 int length;
9003
9004 mutex_lock(&priv->mutex);
9005
9006 if (!wrqu->essid.flags)
9007 {
9008 IPW_DEBUG_WX("Setting ESSID to ANY\n");
9009 ipw_disassociate(priv);
9010 priv->config &= ~CFG_STATIC_ESSID;
9011 ipw_associate(priv);
9012 mutex_unlock(&priv->mutex);
9013 return 0;
9014 }
9015
9016 length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE);
9017
9018 priv->config |= CFG_STATIC_ESSID;
9019
9020 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)
9021 && (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) {
9022 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
9023 mutex_unlock(&priv->mutex);
9024 return 0;
9025 }
9026
9027 IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, extra, length);
9028
9029 priv->essid_len = length;
9030 memcpy(priv->essid, extra, priv->essid_len);
9031
9032 /* Network configuration changed -- force [re]association */
9033 IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n");
9034 if (!ipw_disassociate(priv))
9035 ipw_associate(priv);
9036
9037 mutex_unlock(&priv->mutex);
9038 return 0;
9039 }
9040
9041 static int ipw_wx_get_essid(struct net_device *dev,
9042 struct iw_request_info *info,
9043 union iwreq_data *wrqu, char *extra)
9044 {
9045 struct ipw_priv *priv = libipw_priv(dev);
9046
9047 /* If we are associated, trying to associate, or have a statically
9048 * configured ESSID then return that; otherwise return ANY */
9049 mutex_lock(&priv->mutex);
9050 if (priv->config & CFG_STATIC_ESSID ||
9051 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
9052 IPW_DEBUG_WX("Getting essid: '%*pE'\n",
9053 priv->essid_len, priv->essid);
9054 memcpy(extra, priv->essid, priv->essid_len);
9055 wrqu->essid.length = priv->essid_len;
9056 wrqu->essid.flags = 1; /* active */
9057 } else {
9058 IPW_DEBUG_WX("Getting essid: ANY\n");
9059 wrqu->essid.length = 0;
9060 wrqu->essid.flags = 0; /* active */
9061 }
9062 mutex_unlock(&priv->mutex);
9063 return 0;
9064 }
9065
9066 static int ipw_wx_set_nick(struct net_device *dev,
9067 struct iw_request_info *info,
9068 union iwreq_data *wrqu, char *extra)
9069 {
9070 struct ipw_priv *priv = libipw_priv(dev);
9071
9072 IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
9073 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
9074 return -E2BIG;
9075 mutex_lock(&priv->mutex);
9076 wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick));
9077 memset(priv->nick, 0, sizeof(priv->nick));
9078 memcpy(priv->nick, extra, wrqu->data.length);
9079 IPW_DEBUG_TRACE("<<\n");
9080 mutex_unlock(&priv->mutex);
9081 return 0;
9082
9083 }
9084
9085 static int ipw_wx_get_nick(struct net_device *dev,
9086 struct iw_request_info *info,
9087 union iwreq_data *wrqu, char *extra)
9088 {
9089 struct ipw_priv *priv = libipw_priv(dev);
9090 IPW_DEBUG_WX("Getting nick\n");
9091 mutex_lock(&priv->mutex);
9092 wrqu->data.length = strlen(priv->nick);
9093 memcpy(extra, priv->nick, wrqu->data.length);
9094 wrqu->data.flags = 1; /* active */
9095 mutex_unlock(&priv->mutex);
9096 return 0;
9097 }
9098
9099 static int ipw_wx_set_sens(struct net_device *dev,
9100 struct iw_request_info *info,
9101 union iwreq_data *wrqu, char *extra)
9102 {
9103 struct ipw_priv *priv = libipw_priv(dev);
9104 int err = 0;
9105
9106 IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value);
9107 IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value);
9108 mutex_lock(&priv->mutex);
9109
9110 if (wrqu->sens.fixed == 0)
9111 {
9112 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
9113 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
9114 goto out;
9115 }
9116 if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) ||
9117 (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) {
9118 err = -EINVAL;
9119 goto out;
9120 }
9121
9122 priv->roaming_threshold = wrqu->sens.value;
9123 priv->disassociate_threshold = 3*wrqu->sens.value;
9124 out:
9125 mutex_unlock(&priv->mutex);
9126 return err;
9127 }
9128
9129 static int ipw_wx_get_sens(struct net_device *dev,
9130 struct iw_request_info *info,
9131 union iwreq_data *wrqu, char *extra)
9132 {
9133 struct ipw_priv *priv = libipw_priv(dev);
9134 mutex_lock(&priv->mutex);
9135 wrqu->sens.fixed = 1;
9136 wrqu->sens.value = priv->roaming_threshold;
9137 mutex_unlock(&priv->mutex);
9138
9139 IPW_DEBUG_WX("GET roaming threshold -> %s %d\n",
9140 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9141
9142 return 0;
9143 }
9144
9145 static int ipw_wx_set_rate(struct net_device *dev,
9146 struct iw_request_info *info,
9147 union iwreq_data *wrqu, char *extra)
9148 {
9149 /* TODO: We should use semaphores or locks for access to priv */
9150 struct ipw_priv *priv = libipw_priv(dev);
9151 u32 target_rate = wrqu->bitrate.value;
9152 u32 fixed, mask;
9153
9154 /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */
9155 /* value = X, fixed = 1 means only rate X */
9156 /* value = X, fixed = 0 means all rates lower equal X */
9157
9158 if (target_rate == -1) {
9159 fixed = 0;
9160 mask = LIBIPW_DEFAULT_RATES_MASK;
9161 /* Now we should reassociate */
9162 goto apply;
9163 }
9164
9165 mask = 0;
9166 fixed = wrqu->bitrate.fixed;
9167
9168 if (target_rate == 1000000 || !fixed)
9169 mask |= LIBIPW_CCK_RATE_1MB_MASK;
9170 if (target_rate == 1000000)
9171 goto apply;
9172
9173 if (target_rate == 2000000 || !fixed)
9174 mask |= LIBIPW_CCK_RATE_2MB_MASK;
9175 if (target_rate == 2000000)
9176 goto apply;
9177
9178 if (target_rate == 5500000 || !fixed)
9179 mask |= LIBIPW_CCK_RATE_5MB_MASK;
9180 if (target_rate == 5500000)
9181 goto apply;
9182
9183 if (target_rate == 6000000 || !fixed)
9184 mask |= LIBIPW_OFDM_RATE_6MB_MASK;
9185 if (target_rate == 6000000)
9186 goto apply;
9187
9188 if (target_rate == 9000000 || !fixed)
9189 mask |= LIBIPW_OFDM_RATE_9MB_MASK;
9190 if (target_rate == 9000000)
9191 goto apply;
9192
9193 if (target_rate == 11000000 || !fixed)
9194 mask |= LIBIPW_CCK_RATE_11MB_MASK;
9195 if (target_rate == 11000000)
9196 goto apply;
9197
9198 if (target_rate == 12000000 || !fixed)
9199 mask |= LIBIPW_OFDM_RATE_12MB_MASK;
9200 if (target_rate == 12000000)
9201 goto apply;
9202
9203 if (target_rate == 18000000 || !fixed)
9204 mask |= LIBIPW_OFDM_RATE_18MB_MASK;
9205 if (target_rate == 18000000)
9206 goto apply;
9207
9208 if (target_rate == 24000000 || !fixed)
9209 mask |= LIBIPW_OFDM_RATE_24MB_MASK;
9210 if (target_rate == 24000000)
9211 goto apply;
9212
9213 if (target_rate == 36000000 || !fixed)
9214 mask |= LIBIPW_OFDM_RATE_36MB_MASK;
9215 if (target_rate == 36000000)
9216 goto apply;
9217
9218 if (target_rate == 48000000 || !fixed)
9219 mask |= LIBIPW_OFDM_RATE_48MB_MASK;
9220 if (target_rate == 48000000)
9221 goto apply;
9222
9223 if (target_rate == 54000000 || !fixed)
9224 mask |= LIBIPW_OFDM_RATE_54MB_MASK;
9225 if (target_rate == 54000000)
9226 goto apply;
9227
9228 IPW_DEBUG_WX("invalid rate specified, returning error\n");
9229 return -EINVAL;
9230
9231 apply:
9232 IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n",
9233 mask, fixed ? "fixed" : "sub-rates");
9234 mutex_lock(&priv->mutex);
9235 if (mask == LIBIPW_DEFAULT_RATES_MASK) {
9236 priv->config &= ~CFG_FIXED_RATE;
9237 ipw_set_fixed_rate(priv, priv->ieee->mode);
9238 } else
9239 priv->config |= CFG_FIXED_RATE;
9240
9241 if (priv->rates_mask == mask) {
9242 IPW_DEBUG_WX("Mask set to current mask.\n");
9243 mutex_unlock(&priv->mutex);
9244 return 0;
9245 }
9246
9247 priv->rates_mask = mask;
9248
9249 /* Network configuration changed -- force [re]association */
9250 IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n");
9251 if (!ipw_disassociate(priv))
9252 ipw_associate(priv);
9253
9254 mutex_unlock(&priv->mutex);
9255 return 0;
9256 }
9257
9258 static int ipw_wx_get_rate(struct net_device *dev,
9259 struct iw_request_info *info,
9260 union iwreq_data *wrqu, char *extra)
9261 {
9262 struct ipw_priv *priv = libipw_priv(dev);
9263 mutex_lock(&priv->mutex);
9264 wrqu->bitrate.value = priv->last_rate;
9265 wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0;
9266 mutex_unlock(&priv->mutex);
9267 IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value);
9268 return 0;
9269 }
9270
9271 static int ipw_wx_set_rts(struct net_device *dev,
9272 struct iw_request_info *info,
9273 union iwreq_data *wrqu, char *extra)
9274 {
9275 struct ipw_priv *priv = libipw_priv(dev);
9276 mutex_lock(&priv->mutex);
9277 if (wrqu->rts.disabled || !wrqu->rts.fixed)
9278 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
9279 else {
9280 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
9281 wrqu->rts.value > MAX_RTS_THRESHOLD) {
9282 mutex_unlock(&priv->mutex);
9283 return -EINVAL;
9284 }
9285 priv->rts_threshold = wrqu->rts.value;
9286 }
9287
9288 ipw_send_rts_threshold(priv, priv->rts_threshold);
9289 mutex_unlock(&priv->mutex);
9290 IPW_DEBUG_WX("SET RTS Threshold -> %d\n", priv->rts_threshold);
9291 return 0;
9292 }
9293
9294 static int ipw_wx_get_rts(struct net_device *dev,
9295 struct iw_request_info *info,
9296 union iwreq_data *wrqu, char *extra)
9297 {
9298 struct ipw_priv *priv = libipw_priv(dev);
9299 mutex_lock(&priv->mutex);
9300 wrqu->rts.value = priv->rts_threshold;
9301 wrqu->rts.fixed = 0; /* no auto select */
9302 wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
9303 mutex_unlock(&priv->mutex);
9304 IPW_DEBUG_WX("GET RTS Threshold -> %d\n", wrqu->rts.value);
9305 return 0;
9306 }
9307
9308 static int ipw_wx_set_txpow(struct net_device *dev,
9309 struct iw_request_info *info,
9310 union iwreq_data *wrqu, char *extra)
9311 {
9312 struct ipw_priv *priv = libipw_priv(dev);
9313 int err = 0;
9314
9315 mutex_lock(&priv->mutex);
9316 if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) {
9317 err = -EINPROGRESS;
9318 goto out;
9319 }
9320
9321 if (!wrqu->power.fixed)
9322 wrqu->power.value = IPW_TX_POWER_DEFAULT;
9323
9324 if (wrqu->power.flags != IW_TXPOW_DBM) {
9325 err = -EINVAL;
9326 goto out;
9327 }
9328
9329 if ((wrqu->power.value > IPW_TX_POWER_MAX) ||
9330 (wrqu->power.value < IPW_TX_POWER_MIN)) {
9331 err = -EINVAL;
9332 goto out;
9333 }
9334
9335 priv->tx_power = wrqu->power.value;
9336 err = ipw_set_tx_power(priv);
9337 out:
9338 mutex_unlock(&priv->mutex);
9339 return err;
9340 }
9341
9342 static int ipw_wx_get_txpow(struct net_device *dev,
9343 struct iw_request_info *info,
9344 union iwreq_data *wrqu, char *extra)
9345 {
9346 struct ipw_priv *priv = libipw_priv(dev);
9347 mutex_lock(&priv->mutex);
9348 wrqu->power.value = priv->tx_power;
9349 wrqu->power.fixed = 1;
9350 wrqu->power.flags = IW_TXPOW_DBM;
9351 wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
9352 mutex_unlock(&priv->mutex);
9353
9354 IPW_DEBUG_WX("GET TX Power -> %s %d\n",
9355 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9356
9357 return 0;
9358 }
9359
9360 static int ipw_wx_set_frag(struct net_device *dev,
9361 struct iw_request_info *info,
9362 union iwreq_data *wrqu, char *extra)
9363 {
9364 struct ipw_priv *priv = libipw_priv(dev);
9365 mutex_lock(&priv->mutex);
9366 if (wrqu->frag.disabled || !wrqu->frag.fixed)
9367 priv->ieee->fts = DEFAULT_FTS;
9368 else {
9369 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
9370 wrqu->frag.value > MAX_FRAG_THRESHOLD) {
9371 mutex_unlock(&priv->mutex);
9372 return -EINVAL;
9373 }
9374
9375 priv->ieee->fts = wrqu->frag.value & ~0x1;
9376 }
9377
9378 ipw_send_frag_threshold(priv, wrqu->frag.value);
9379 mutex_unlock(&priv->mutex);
9380 IPW_DEBUG_WX("SET Frag Threshold -> %d\n", wrqu->frag.value);
9381 return 0;
9382 }
9383
9384 static int ipw_wx_get_frag(struct net_device *dev,
9385 struct iw_request_info *info,
9386 union iwreq_data *wrqu, char *extra)
9387 {
9388 struct ipw_priv *priv = libipw_priv(dev);
9389 mutex_lock(&priv->mutex);
9390 wrqu->frag.value = priv->ieee->fts;
9391 wrqu->frag.fixed = 0; /* no auto select */
9392 wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS);
9393 mutex_unlock(&priv->mutex);
9394 IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value);
9395
9396 return 0;
9397 }
9398
9399 static int ipw_wx_set_retry(struct net_device *dev,
9400 struct iw_request_info *info,
9401 union iwreq_data *wrqu, char *extra)
9402 {
9403 struct ipw_priv *priv = libipw_priv(dev);
9404
9405 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
9406 return -EINVAL;
9407
9408 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
9409 return 0;
9410
9411 if (wrqu->retry.value < 0 || wrqu->retry.value >= 255)
9412 return -EINVAL;
9413
9414 mutex_lock(&priv->mutex);
9415 if (wrqu->retry.flags & IW_RETRY_SHORT)
9416 priv->short_retry_limit = (u8) wrqu->retry.value;
9417 else if (wrqu->retry.flags & IW_RETRY_LONG)
9418 priv->long_retry_limit = (u8) wrqu->retry.value;
9419 else {
9420 priv->short_retry_limit = (u8) wrqu->retry.value;
9421 priv->long_retry_limit = (u8) wrqu->retry.value;
9422 }
9423
9424 ipw_send_retry_limit(priv, priv->short_retry_limit,
9425 priv->long_retry_limit);
9426 mutex_unlock(&priv->mutex);
9427 IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n",
9428 priv->short_retry_limit, priv->long_retry_limit);
9429 return 0;
9430 }
9431
9432 static int ipw_wx_get_retry(struct net_device *dev,
9433 struct iw_request_info *info,
9434 union iwreq_data *wrqu, char *extra)
9435 {
9436 struct ipw_priv *priv = libipw_priv(dev);
9437
9438 mutex_lock(&priv->mutex);
9439 wrqu->retry.disabled = 0;
9440
9441 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
9442 mutex_unlock(&priv->mutex);
9443 return -EINVAL;
9444 }
9445
9446 if (wrqu->retry.flags & IW_RETRY_LONG) {
9447 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
9448 wrqu->retry.value = priv->long_retry_limit;
9449 } else if (wrqu->retry.flags & IW_RETRY_SHORT) {
9450 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
9451 wrqu->retry.value = priv->short_retry_limit;
9452 } else {
9453 wrqu->retry.flags = IW_RETRY_LIMIT;
9454 wrqu->retry.value = priv->short_retry_limit;
9455 }
9456 mutex_unlock(&priv->mutex);
9457
9458 IPW_DEBUG_WX("GET retry -> %d\n", wrqu->retry.value);
9459
9460 return 0;
9461 }
9462
9463 static int ipw_wx_set_scan(struct net_device *dev,
9464 struct iw_request_info *info,
9465 union iwreq_data *wrqu, char *extra)
9466 {
9467 struct ipw_priv *priv = libipw_priv(dev);
9468 struct iw_scan_req *req = (struct iw_scan_req *)extra;
9469 struct delayed_work *work = NULL;
9470
9471 mutex_lock(&priv->mutex);
9472
9473 priv->user_requested_scan = 1;
9474
9475 if (wrqu->data.length == sizeof(struct iw_scan_req)) {
9476 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
9477 int len = min((int)req->essid_len,
9478 (int)sizeof(priv->direct_scan_ssid));
9479 memcpy(priv->direct_scan_ssid, req->essid, len);
9480 priv->direct_scan_ssid_len = len;
9481 work = &priv->request_direct_scan;
9482 } else if (req->scan_type == IW_SCAN_TYPE_PASSIVE) {
9483 work = &priv->request_passive_scan;
9484 }
9485 } else {
9486 /* Normal active broadcast scan */
9487 work = &priv->request_scan;
9488 }
9489
9490 mutex_unlock(&priv->mutex);
9491
9492 IPW_DEBUG_WX("Start scan\n");
9493
9494 schedule_delayed_work(work, 0);
9495
9496 return 0;
9497 }
9498
9499 static int ipw_wx_get_scan(struct net_device *dev,
9500 struct iw_request_info *info,
9501 union iwreq_data *wrqu, char *extra)
9502 {
9503 struct ipw_priv *priv = libipw_priv(dev);
9504 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
9505 }
9506
9507 static int ipw_wx_set_encode(struct net_device *dev,
9508 struct iw_request_info *info,
9509 union iwreq_data *wrqu, char *key)
9510 {
9511 struct ipw_priv *priv = libipw_priv(dev);
9512 int ret;
9513 u32 cap = priv->capability;
9514
9515 mutex_lock(&priv->mutex);
9516 ret = libipw_wx_set_encode(priv->ieee, info, wrqu, key);
9517
9518 /* In IBSS mode, we need to notify the firmware to update
9519 * the beacon info after we changed the capability. */
9520 if (cap != priv->capability &&
9521 priv->ieee->iw_mode == IW_MODE_ADHOC &&
9522 priv->status & STATUS_ASSOCIATED)
9523 ipw_disassociate(priv);
9524
9525 mutex_unlock(&priv->mutex);
9526 return ret;
9527 }
9528
9529 static int ipw_wx_get_encode(struct net_device *dev,
9530 struct iw_request_info *info,
9531 union iwreq_data *wrqu, char *key)
9532 {
9533 struct ipw_priv *priv = libipw_priv(dev);
9534 return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
9535 }
9536
9537 static int ipw_wx_set_power(struct net_device *dev,
9538 struct iw_request_info *info,
9539 union iwreq_data *wrqu, char *extra)
9540 {
9541 struct ipw_priv *priv = libipw_priv(dev);
9542 int err;
9543 mutex_lock(&priv->mutex);
9544 if (wrqu->power.disabled) {
9545 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
9546 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
9547 if (err) {
9548 IPW_DEBUG_WX("failed setting power mode.\n");
9549 mutex_unlock(&priv->mutex);
9550 return err;
9551 }
9552 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
9553 mutex_unlock(&priv->mutex);
9554 return 0;
9555 }
9556
9557 switch (wrqu->power.flags & IW_POWER_MODE) {
9558 case IW_POWER_ON: /* If not specified */
9559 case IW_POWER_MODE: /* If set all mask */
9560 case IW_POWER_ALL_R: /* If explicitly state all */
9561 break;
9562 default: /* Otherwise we don't support it */
9563 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
9564 wrqu->power.flags);
9565 mutex_unlock(&priv->mutex);
9566 return -EOPNOTSUPP;
9567 }
9568
9569 /* If the user hasn't specified a power management mode yet, default
9570 * to BATTERY */
9571 if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
9572 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
9573 else
9574 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
9575
9576 err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
9577 if (err) {
9578 IPW_DEBUG_WX("failed setting power mode.\n");
9579 mutex_unlock(&priv->mutex);
9580 return err;
9581 }
9582
9583 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
9584 mutex_unlock(&priv->mutex);
9585 return 0;
9586 }
9587
9588 static int ipw_wx_get_power(struct net_device *dev,
9589 struct iw_request_info *info,
9590 union iwreq_data *wrqu, char *extra)
9591 {
9592 struct ipw_priv *priv = libipw_priv(dev);
9593 mutex_lock(&priv->mutex);
9594 if (!(priv->power_mode & IPW_POWER_ENABLED))
9595 wrqu->power.disabled = 1;
9596 else
9597 wrqu->power.disabled = 0;
9598
9599 mutex_unlock(&priv->mutex);
9600 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
9601
9602 return 0;
9603 }
9604
9605 static int ipw_wx_set_powermode(struct net_device *dev,
9606 struct iw_request_info *info,
9607 union iwreq_data *wrqu, char *extra)
9608 {
9609 struct ipw_priv *priv = libipw_priv(dev);
9610 int mode = *(int *)extra;
9611 int err;
9612
9613 mutex_lock(&priv->mutex);
9614 if ((mode < 1) || (mode > IPW_POWER_LIMIT))
9615 mode = IPW_POWER_AC;
9616
9617 if (IPW_POWER_LEVEL(priv->power_mode) != mode) {
9618 err = ipw_send_power_mode(priv, mode);
9619 if (err) {
9620 IPW_DEBUG_WX("failed setting power mode.\n");
9621 mutex_unlock(&priv->mutex);
9622 return err;
9623 }
9624 priv->power_mode = IPW_POWER_ENABLED | mode;
9625 }
9626 mutex_unlock(&priv->mutex);
9627 return 0;
9628 }
9629
9630 #define MAX_WX_STRING 80
9631 static int ipw_wx_get_powermode(struct net_device *dev,
9632 struct iw_request_info *info,
9633 union iwreq_data *wrqu, char *extra)
9634 {
9635 struct ipw_priv *priv = libipw_priv(dev);
9636 int level = IPW_POWER_LEVEL(priv->power_mode);
9637 char *p = extra;
9638
9639 p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
9640
9641 switch (level) {
9642 case IPW_POWER_AC:
9643 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
9644 break;
9645 case IPW_POWER_BATTERY:
9646 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
9647 break;
9648 default:
9649 p += snprintf(p, MAX_WX_STRING - (p - extra),
9650 "(Timeout %dms, Period %dms)",
9651 timeout_duration[level - 1] / 1000,
9652 period_duration[level - 1] / 1000);
9653 }
9654
9655 if (!(priv->power_mode & IPW_POWER_ENABLED))
9656 p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF");
9657
9658 wrqu->data.length = p - extra + 1;
9659
9660 return 0;
9661 }
9662
9663 static int ipw_wx_set_wireless_mode(struct net_device *dev,
9664 struct iw_request_info *info,
9665 union iwreq_data *wrqu, char *extra)
9666 {
9667 struct ipw_priv *priv = libipw_priv(dev);
9668 int mode = *(int *)extra;
9669 u8 band = 0, modulation = 0;
9670
9671 if (mode == 0 || mode & ~IEEE_MODE_MASK) {
9672 IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode);
9673 return -EINVAL;
9674 }
9675 mutex_lock(&priv->mutex);
9676 if (priv->adapter == IPW_2915ABG) {
9677 priv->ieee->abg_true = 1;
9678 if (mode & IEEE_A) {
9679 band |= LIBIPW_52GHZ_BAND;
9680 modulation |= LIBIPW_OFDM_MODULATION;
9681 } else
9682 priv->ieee->abg_true = 0;
9683 } else {
9684 if (mode & IEEE_A) {
9685 IPW_WARNING("Attempt to set 2200BG into "
9686 "802.11a mode\n");
9687 mutex_unlock(&priv->mutex);
9688 return -EINVAL;
9689 }
9690
9691 priv->ieee->abg_true = 0;
9692 }
9693
9694 if (mode & IEEE_B) {
9695 band |= LIBIPW_24GHZ_BAND;
9696 modulation |= LIBIPW_CCK_MODULATION;
9697 } else
9698 priv->ieee->abg_true = 0;
9699
9700 if (mode & IEEE_G) {
9701 band |= LIBIPW_24GHZ_BAND;
9702 modulation |= LIBIPW_OFDM_MODULATION;
9703 } else
9704 priv->ieee->abg_true = 0;
9705
9706 priv->ieee->mode = mode;
9707 priv->ieee->freq_band = band;
9708 priv->ieee->modulation = modulation;
9709 init_supported_rates(priv, &priv->rates);
9710
9711 /* Network configuration changed -- force [re]association */
9712 IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n");
9713 if (!ipw_disassociate(priv)) {
9714 ipw_send_supported_rates(priv, &priv->rates);
9715 ipw_associate(priv);
9716 }
9717
9718 /* Update the band LEDs */
9719 ipw_led_band_on(priv);
9720
9721 IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
9722 mode & IEEE_A ? 'a' : '.',
9723 mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.');
9724 mutex_unlock(&priv->mutex);
9725 return 0;
9726 }
9727
9728 static int ipw_wx_get_wireless_mode(struct net_device *dev,
9729 struct iw_request_info *info,
9730 union iwreq_data *wrqu, char *extra)
9731 {
9732 struct ipw_priv *priv = libipw_priv(dev);
9733 mutex_lock(&priv->mutex);
9734 switch (priv->ieee->mode) {
9735 case IEEE_A:
9736 strncpy(extra, "802.11a (1)", MAX_WX_STRING);
9737 break;
9738 case IEEE_B:
9739 strncpy(extra, "802.11b (2)", MAX_WX_STRING);
9740 break;
9741 case IEEE_A | IEEE_B:
9742 strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
9743 break;
9744 case IEEE_G:
9745 strncpy(extra, "802.11g (4)", MAX_WX_STRING);
9746 break;
9747 case IEEE_A | IEEE_G:
9748 strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
9749 break;
9750 case IEEE_B | IEEE_G:
9751 strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
9752 break;
9753 case IEEE_A | IEEE_B | IEEE_G:
9754 strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
9755 break;
9756 default:
9757 strncpy(extra, "unknown", MAX_WX_STRING);
9758 break;
9759 }
9760 extra[MAX_WX_STRING - 1] = '\0';
9761
9762 IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
9763
9764 wrqu->data.length = strlen(extra) + 1;
9765 mutex_unlock(&priv->mutex);
9766
9767 return 0;
9768 }
9769
9770 static int ipw_wx_set_preamble(struct net_device *dev,
9771 struct iw_request_info *info,
9772 union iwreq_data *wrqu, char *extra)
9773 {
9774 struct ipw_priv *priv = libipw_priv(dev);
9775 int mode = *(int *)extra;
9776 mutex_lock(&priv->mutex);
9777 /* Switching from SHORT -> LONG requires a disassociation */
9778 if (mode == 1) {
9779 if (!(priv->config & CFG_PREAMBLE_LONG)) {
9780 priv->config |= CFG_PREAMBLE_LONG;
9781
9782 /* Network configuration changed -- force [re]association */
9783 IPW_DEBUG_ASSOC
9784 ("[re]association triggered due to preamble change.\n");
9785 if (!ipw_disassociate(priv))
9786 ipw_associate(priv);
9787 }
9788 goto done;
9789 }
9790
9791 if (mode == 0) {
9792 priv->config &= ~CFG_PREAMBLE_LONG;
9793 goto done;
9794 }
9795 mutex_unlock(&priv->mutex);
9796 return -EINVAL;
9797
9798 done:
9799 mutex_unlock(&priv->mutex);
9800 return 0;
9801 }
9802
9803 static int ipw_wx_get_preamble(struct net_device *dev,
9804 struct iw_request_info *info,
9805 union iwreq_data *wrqu, char *extra)
9806 {
9807 struct ipw_priv *priv = libipw_priv(dev);
9808 mutex_lock(&priv->mutex);
9809 if (priv->config & CFG_PREAMBLE_LONG)
9810 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
9811 else
9812 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
9813 mutex_unlock(&priv->mutex);
9814 return 0;
9815 }
9816
9817 #ifdef CONFIG_IPW2200_MONITOR
9818 static int ipw_wx_set_monitor(struct net_device *dev,
9819 struct iw_request_info *info,
9820 union iwreq_data *wrqu, char *extra)
9821 {
9822 struct ipw_priv *priv = libipw_priv(dev);
9823 int *parms = (int *)extra;
9824 int enable = (parms[0] > 0);
9825 mutex_lock(&priv->mutex);
9826 IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]);
9827 if (enable) {
9828 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9829 #ifdef CONFIG_IPW2200_RADIOTAP
9830 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
9831 #else
9832 priv->net_dev->type = ARPHRD_IEEE80211;
9833 #endif
9834 schedule_work(&priv->adapter_restart);
9835 }
9836
9837 ipw_set_channel(priv, parms[1]);
9838 } else {
9839 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9840 mutex_unlock(&priv->mutex);
9841 return 0;
9842 }
9843 priv->net_dev->type = ARPHRD_ETHER;
9844 schedule_work(&priv->adapter_restart);
9845 }
9846 mutex_unlock(&priv->mutex);
9847 return 0;
9848 }
9849
9850 #endif /* CONFIG_IPW2200_MONITOR */
9851
9852 static int ipw_wx_reset(struct net_device *dev,
9853 struct iw_request_info *info,
9854 union iwreq_data *wrqu, char *extra)
9855 {
9856 struct ipw_priv *priv = libipw_priv(dev);
9857 IPW_DEBUG_WX("RESET\n");
9858 schedule_work(&priv->adapter_restart);
9859 return 0;
9860 }
9861
9862 static int ipw_wx_sw_reset(struct net_device *dev,
9863 struct iw_request_info *info,
9864 union iwreq_data *wrqu, char *extra)
9865 {
9866 struct ipw_priv *priv = libipw_priv(dev);
9867 union iwreq_data wrqu_sec = {
9868 .encoding = {
9869 .flags = IW_ENCODE_DISABLED,
9870 },
9871 };
9872 int ret;
9873
9874 IPW_DEBUG_WX("SW_RESET\n");
9875
9876 mutex_lock(&priv->mutex);
9877
9878 ret = ipw_sw_reset(priv, 2);
9879 if (!ret) {
9880 free_firmware();
9881 ipw_adapter_restart(priv);
9882 }
9883
9884 /* The SW reset bit might have been toggled on by the 'disable'
9885 * module parameter, so take appropriate action */
9886 ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW);
9887
9888 mutex_unlock(&priv->mutex);
9889 libipw_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL);
9890 mutex_lock(&priv->mutex);
9891
9892 if (!(priv->status & STATUS_RF_KILL_MASK)) {
9893 /* Configuration likely changed -- force [re]association */
9894 IPW_DEBUG_ASSOC("[re]association triggered due to sw "
9895 "reset.\n");
9896 if (!ipw_disassociate(priv))
9897 ipw_associate(priv);
9898 }
9899
9900 mutex_unlock(&priv->mutex);
9901
9902 return 0;
9903 }
9904
9905 /* Rebase the WE IOCTLs to zero for the handler array */
9906 static iw_handler ipw_wx_handlers[] = {
9907 IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
9908 IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq),
9909 IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq),
9910 IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode),
9911 IW_HANDLER(SIOCGIWMODE, ipw_wx_get_mode),
9912 IW_HANDLER(SIOCSIWSENS, ipw_wx_set_sens),
9913 IW_HANDLER(SIOCGIWSENS, ipw_wx_get_sens),
9914 IW_HANDLER(SIOCGIWRANGE, ipw_wx_get_range),
9915 IW_HANDLER(SIOCSIWAP, ipw_wx_set_wap),
9916 IW_HANDLER(SIOCGIWAP, ipw_wx_get_wap),
9917 IW_HANDLER(SIOCSIWSCAN, ipw_wx_set_scan),
9918 IW_HANDLER(SIOCGIWSCAN, ipw_wx_get_scan),
9919 IW_HANDLER(SIOCSIWESSID, ipw_wx_set_essid),
9920 IW_HANDLER(SIOCGIWESSID, ipw_wx_get_essid),
9921 IW_HANDLER(SIOCSIWNICKN, ipw_wx_set_nick),
9922 IW_HANDLER(SIOCGIWNICKN, ipw_wx_get_nick),
9923 IW_HANDLER(SIOCSIWRATE, ipw_wx_set_rate),
9924 IW_HANDLER(SIOCGIWRATE, ipw_wx_get_rate),
9925 IW_HANDLER(SIOCSIWRTS, ipw_wx_set_rts),
9926 IW_HANDLER(SIOCGIWRTS, ipw_wx_get_rts),
9927 IW_HANDLER(SIOCSIWFRAG, ipw_wx_set_frag),
9928 IW_HANDLER(SIOCGIWFRAG, ipw_wx_get_frag),
9929 IW_HANDLER(SIOCSIWTXPOW, ipw_wx_set_txpow),
9930 IW_HANDLER(SIOCGIWTXPOW, ipw_wx_get_txpow),
9931 IW_HANDLER(SIOCSIWRETRY, ipw_wx_set_retry),
9932 IW_HANDLER(SIOCGIWRETRY, ipw_wx_get_retry),
9933 IW_HANDLER(SIOCSIWENCODE, ipw_wx_set_encode),
9934 IW_HANDLER(SIOCGIWENCODE, ipw_wx_get_encode),
9935 IW_HANDLER(SIOCSIWPOWER, ipw_wx_set_power),
9936 IW_HANDLER(SIOCGIWPOWER, ipw_wx_get_power),
9937 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
9938 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
9939 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
9940 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
9941 IW_HANDLER(SIOCSIWGENIE, ipw_wx_set_genie),
9942 IW_HANDLER(SIOCGIWGENIE, ipw_wx_get_genie),
9943 IW_HANDLER(SIOCSIWMLME, ipw_wx_set_mlme),
9944 IW_HANDLER(SIOCSIWAUTH, ipw_wx_set_auth),
9945 IW_HANDLER(SIOCGIWAUTH, ipw_wx_get_auth),
9946 IW_HANDLER(SIOCSIWENCODEEXT, ipw_wx_set_encodeext),
9947 IW_HANDLER(SIOCGIWENCODEEXT, ipw_wx_get_encodeext),
9948 };
9949
9950 enum {
9951 IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV,
9952 IPW_PRIV_GET_POWER,
9953 IPW_PRIV_SET_MODE,
9954 IPW_PRIV_GET_MODE,
9955 IPW_PRIV_SET_PREAMBLE,
9956 IPW_PRIV_GET_PREAMBLE,
9957 IPW_PRIV_RESET,
9958 IPW_PRIV_SW_RESET,
9959 #ifdef CONFIG_IPW2200_MONITOR
9960 IPW_PRIV_SET_MONITOR,
9961 #endif
9962 };
9963
9964 static struct iw_priv_args ipw_priv_args[] = {
9965 {
9966 .cmd = IPW_PRIV_SET_POWER,
9967 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9968 .name = "set_power"},
9969 {
9970 .cmd = IPW_PRIV_GET_POWER,
9971 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9972 .name = "get_power"},
9973 {
9974 .cmd = IPW_PRIV_SET_MODE,
9975 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9976 .name = "set_mode"},
9977 {
9978 .cmd = IPW_PRIV_GET_MODE,
9979 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9980 .name = "get_mode"},
9981 {
9982 .cmd = IPW_PRIV_SET_PREAMBLE,
9983 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9984 .name = "set_preamble"},
9985 {
9986 .cmd = IPW_PRIV_GET_PREAMBLE,
9987 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ,
9988 .name = "get_preamble"},
9989 {
9990 IPW_PRIV_RESET,
9991 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
9992 {
9993 IPW_PRIV_SW_RESET,
9994 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"},
9995 #ifdef CONFIG_IPW2200_MONITOR
9996 {
9997 IPW_PRIV_SET_MONITOR,
9998 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
9999 #endif /* CONFIG_IPW2200_MONITOR */
10000 };
10001
10002 static iw_handler ipw_priv_handler[] = {
10003 ipw_wx_set_powermode,
10004 ipw_wx_get_powermode,
10005 ipw_wx_set_wireless_mode,
10006 ipw_wx_get_wireless_mode,
10007 ipw_wx_set_preamble,
10008 ipw_wx_get_preamble,
10009 ipw_wx_reset,
10010 ipw_wx_sw_reset,
10011 #ifdef CONFIG_IPW2200_MONITOR
10012 ipw_wx_set_monitor,
10013 #endif
10014 };
10015
10016 static struct iw_handler_def ipw_wx_handler_def = {
10017 .standard = ipw_wx_handlers,
10018 .num_standard = ARRAY_SIZE(ipw_wx_handlers),
10019 .num_private = ARRAY_SIZE(ipw_priv_handler),
10020 .num_private_args = ARRAY_SIZE(ipw_priv_args),
10021 .private = ipw_priv_handler,
10022 .private_args = ipw_priv_args,
10023 .get_wireless_stats = ipw_get_wireless_stats,
10024 };
10025
10026 /*
10027 * Get wireless statistics.
10028 * Called by /proc/net/wireless
10029 * Also called by SIOCGIWSTATS
10030 */
10031 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev)
10032 {
10033 struct ipw_priv *priv = libipw_priv(dev);
10034 struct iw_statistics *wstats;
10035
10036 wstats = &priv->wstats;
10037
10038 /* if hw is disabled, then ipw_get_ordinal() can't be called.
10039 * netdev->get_wireless_stats seems to be called before fw is
10040 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
10041 * and associated; if not associcated, the values are all meaningless
10042 * anyway, so set them all to NULL and INVALID */
10043 if (!(priv->status & STATUS_ASSOCIATED)) {
10044 wstats->miss.beacon = 0;
10045 wstats->discard.retries = 0;
10046 wstats->qual.qual = 0;
10047 wstats->qual.level = 0;
10048 wstats->qual.noise = 0;
10049 wstats->qual.updated = 7;
10050 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
10051 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
10052 return wstats;
10053 }
10054
10055 wstats->qual.qual = priv->quality;
10056 wstats->qual.level = priv->exp_avg_rssi;
10057 wstats->qual.noise = priv->exp_avg_noise;
10058 wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
10059 IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM;
10060
10061 wstats->miss.beacon = average_value(&priv->average_missed_beacons);
10062 wstats->discard.retries = priv->last_tx_failures;
10063 wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
10064
10065 /* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
10066 goto fail_get_ordinal;
10067 wstats->discard.retries += tx_retry; */
10068
10069 return wstats;
10070 }
10071
10072 /* net device stuff */
10073
10074 static void init_sys_config(struct ipw_sys_config *sys_config)
10075 {
10076 memset(sys_config, 0, sizeof(struct ipw_sys_config));
10077 sys_config->bt_coexistence = 0;
10078 sys_config->answer_broadcast_ssid_probe = 0;
10079 sys_config->accept_all_data_frames = 0;
10080 sys_config->accept_non_directed_frames = 1;
10081 sys_config->exclude_unicast_unencrypted = 0;
10082 sys_config->disable_unicast_decryption = 1;
10083 sys_config->exclude_multicast_unencrypted = 0;
10084 sys_config->disable_multicast_decryption = 1;
10085 if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B)
10086 antenna = CFG_SYS_ANTENNA_BOTH;
10087 sys_config->antenna_diversity = antenna;
10088 sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */
10089 sys_config->dot11g_auto_detection = 0;
10090 sys_config->enable_cts_to_self = 0;
10091 sys_config->bt_coexist_collision_thr = 0;
10092 sys_config->pass_noise_stats_to_host = 1; /* 1 -- fix for 256 */
10093 sys_config->silence_threshold = 0x1e;
10094 }
10095
10096 static int ipw_net_open(struct net_device *dev)
10097 {
10098 IPW_DEBUG_INFO("dev->open\n");
10099 netif_start_queue(dev);
10100 return 0;
10101 }
10102
10103 static int ipw_net_stop(struct net_device *dev)
10104 {
10105 IPW_DEBUG_INFO("dev->close\n");
10106 netif_stop_queue(dev);
10107 return 0;
10108 }
10109
10110 /*
10111 todo:
10112
10113 modify to send one tfd per fragment instead of using chunking. otherwise
10114 we need to heavily modify the libipw_skb_to_txb.
10115 */
10116
10117 static int ipw_tx_skb(struct ipw_priv *priv, struct libipw_txb *txb,
10118 int pri)
10119 {
10120 struct libipw_hdr_3addrqos *hdr = (struct libipw_hdr_3addrqos *)
10121 txb->fragments[0]->data;
10122 int i = 0;
10123 struct tfd_frame *tfd;
10124 #ifdef CONFIG_IPW2200_QOS
10125 int tx_id = ipw_get_tx_queue_number(priv, pri);
10126 struct clx2_tx_queue *txq = &priv->txq[tx_id];
10127 #else
10128 struct clx2_tx_queue *txq = &priv->txq[0];
10129 #endif
10130 struct clx2_queue *q = &txq->q;
10131 u8 id, hdr_len, unicast;
10132 int fc;
10133
10134 if (!(priv->status & STATUS_ASSOCIATED))
10135 goto drop;
10136
10137 hdr_len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
10138 switch (priv->ieee->iw_mode) {
10139 case IW_MODE_ADHOC:
10140 unicast = !is_multicast_ether_addr(hdr->addr1);
10141 id = ipw_find_station(priv, hdr->addr1);
10142 if (id == IPW_INVALID_STATION) {
10143 id = ipw_add_station(priv, hdr->addr1);
10144 if (id == IPW_INVALID_STATION) {
10145 IPW_WARNING("Attempt to send data to "
10146 "invalid cell: %pM\n",
10147 hdr->addr1);
10148 goto drop;
10149 }
10150 }
10151 break;
10152
10153 case IW_MODE_INFRA:
10154 default:
10155 unicast = !is_multicast_ether_addr(hdr->addr3);
10156 id = 0;
10157 break;
10158 }
10159
10160 tfd = &txq->bd[q->first_empty];
10161 txq->txb[q->first_empty] = txb;
10162 memset(tfd, 0, sizeof(*tfd));
10163 tfd->u.data.station_number = id;
10164
10165 tfd->control_flags.message_type = TX_FRAME_TYPE;
10166 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
10167
10168 tfd->u.data.cmd_id = DINO_CMD_TX;
10169 tfd->u.data.len = cpu_to_le16(txb->payload_size);
10170
10171 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
10172 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK;
10173 else
10174 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM;
10175
10176 if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE)
10177 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE;
10178
10179 fc = le16_to_cpu(hdr->frame_ctl);
10180 hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS);
10181
10182 memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
10183
10184 if (likely(unicast))
10185 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10186
10187 if (txb->encrypted && !priv->ieee->host_encrypt) {
10188 switch (priv->ieee->sec.level) {
10189 case SEC_LEVEL_3:
10190 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10191 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10192 /* XXX: ACK flag must be set for CCMP even if it
10193 * is a multicast/broadcast packet, because CCMP
10194 * group communication encrypted by GTK is
10195 * actually done by the AP. */
10196 if (!unicast)
10197 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10198
10199 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10200 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM;
10201 tfd->u.data.key_index = 0;
10202 tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE;
10203 break;
10204 case SEC_LEVEL_2:
10205 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10206 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10207 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10208 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP;
10209 tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE;
10210 break;
10211 case SEC_LEVEL_1:
10212 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10213 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10214 tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx;
10215 if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <=
10216 40)
10217 tfd->u.data.key_index |= DCT_WEP_KEY_64Bit;
10218 else
10219 tfd->u.data.key_index |= DCT_WEP_KEY_128Bit;
10220 break;
10221 case SEC_LEVEL_0:
10222 break;
10223 default:
10224 printk(KERN_ERR "Unknown security level %d\n",
10225 priv->ieee->sec.level);
10226 break;
10227 }
10228 } else
10229 /* No hardware encryption */
10230 tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP;
10231
10232 #ifdef CONFIG_IPW2200_QOS
10233 if (fc & IEEE80211_STYPE_QOS_DATA)
10234 ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data));
10235 #endif /* CONFIG_IPW2200_QOS */
10236
10237 /* payload */
10238 tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2),
10239 txb->nr_frags));
10240 IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n",
10241 txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks));
10242 for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) {
10243 IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n",
10244 i, le32_to_cpu(tfd->u.data.num_chunks),
10245 txb->fragments[i]->len - hdr_len);
10246 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
10247 i, tfd->u.data.num_chunks,
10248 txb->fragments[i]->len - hdr_len);
10249 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
10250 txb->fragments[i]->len - hdr_len);
10251
10252 tfd->u.data.chunk_ptr[i] =
10253 cpu_to_le32(pci_map_single
10254 (priv->pci_dev,
10255 txb->fragments[i]->data + hdr_len,
10256 txb->fragments[i]->len - hdr_len,
10257 PCI_DMA_TODEVICE));
10258 tfd->u.data.chunk_len[i] =
10259 cpu_to_le16(txb->fragments[i]->len - hdr_len);
10260 }
10261
10262 if (i != txb->nr_frags) {
10263 struct sk_buff *skb;
10264 u16 remaining_bytes = 0;
10265 int j;
10266
10267 for (j = i; j < txb->nr_frags; j++)
10268 remaining_bytes += txb->fragments[j]->len - hdr_len;
10269
10270 printk(KERN_INFO "Trying to reallocate for %d bytes\n",
10271 remaining_bytes);
10272 skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
10273 if (skb != NULL) {
10274 tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes);
10275 for (j = i; j < txb->nr_frags; j++) {
10276 int size = txb->fragments[j]->len - hdr_len;
10277
10278 printk(KERN_INFO "Adding frag %d %d...\n",
10279 j, size);
10280 memcpy(skb_put(skb, size),
10281 txb->fragments[j]->data + hdr_len, size);
10282 }
10283 dev_kfree_skb_any(txb->fragments[i]);
10284 txb->fragments[i] = skb;
10285 tfd->u.data.chunk_ptr[i] =
10286 cpu_to_le32(pci_map_single
10287 (priv->pci_dev, skb->data,
10288 remaining_bytes,
10289 PCI_DMA_TODEVICE));
10290
10291 le32_add_cpu(&tfd->u.data.num_chunks, 1);
10292 }
10293 }
10294
10295 /* kick DMA */
10296 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
10297 ipw_write32(priv, q->reg_w, q->first_empty);
10298
10299 if (ipw_tx_queue_space(q) < q->high_mark)
10300 netif_stop_queue(priv->net_dev);
10301
10302 return NETDEV_TX_OK;
10303
10304 drop:
10305 IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
10306 libipw_txb_free(txb);
10307 return NETDEV_TX_OK;
10308 }
10309
10310 static int ipw_net_is_queue_full(struct net_device *dev, int pri)
10311 {
10312 struct ipw_priv *priv = libipw_priv(dev);
10313 #ifdef CONFIG_IPW2200_QOS
10314 int tx_id = ipw_get_tx_queue_number(priv, pri);
10315 struct clx2_tx_queue *txq = &priv->txq[tx_id];
10316 #else
10317 struct clx2_tx_queue *txq = &priv->txq[0];
10318 #endif /* CONFIG_IPW2200_QOS */
10319
10320 if (ipw_tx_queue_space(&txq->q) < txq->q.high_mark)
10321 return 1;
10322
10323 return 0;
10324 }
10325
10326 #ifdef CONFIG_IPW2200_PROMISCUOUS
10327 static void ipw_handle_promiscuous_tx(struct ipw_priv *priv,
10328 struct libipw_txb *txb)
10329 {
10330 struct libipw_rx_stats dummystats;
10331 struct ieee80211_hdr *hdr;
10332 u8 n;
10333 u16 filter = priv->prom_priv->filter;
10334 int hdr_only = 0;
10335
10336 if (filter & IPW_PROM_NO_TX)
10337 return;
10338
10339 memset(&dummystats, 0, sizeof(dummystats));
10340
10341 /* Filtering of fragment chains is done against the first fragment */
10342 hdr = (void *)txb->fragments[0]->data;
10343 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) {
10344 if (filter & IPW_PROM_NO_MGMT)
10345 return;
10346 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
10347 hdr_only = 1;
10348 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) {
10349 if (filter & IPW_PROM_NO_CTL)
10350 return;
10351 if (filter & IPW_PROM_CTL_HEADER_ONLY)
10352 hdr_only = 1;
10353 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) {
10354 if (filter & IPW_PROM_NO_DATA)
10355 return;
10356 if (filter & IPW_PROM_DATA_HEADER_ONLY)
10357 hdr_only = 1;
10358 }
10359
10360 for(n=0; n<txb->nr_frags; ++n) {
10361 struct sk_buff *src = txb->fragments[n];
10362 struct sk_buff *dst;
10363 struct ieee80211_radiotap_header *rt_hdr;
10364 int len;
10365
10366 if (hdr_only) {
10367 hdr = (void *)src->data;
10368 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control));
10369 } else
10370 len = src->len;
10371
10372 dst = alloc_skb(len + sizeof(*rt_hdr) + sizeof(u16)*2, GFP_ATOMIC);
10373 if (!dst)
10374 continue;
10375
10376 rt_hdr = (void *)skb_put(dst, sizeof(*rt_hdr));
10377
10378 rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION;
10379 rt_hdr->it_pad = 0;
10380 rt_hdr->it_present = 0; /* after all, it's just an idea */
10381 rt_hdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_CHANNEL);
10382
10383 *(__le16*)skb_put(dst, sizeof(u16)) = cpu_to_le16(
10384 ieee80211chan2mhz(priv->channel));
10385 if (priv->channel > 14) /* 802.11a */
10386 *(__le16*)skb_put(dst, sizeof(u16)) =
10387 cpu_to_le16(IEEE80211_CHAN_OFDM |
10388 IEEE80211_CHAN_5GHZ);
10389 else if (priv->ieee->mode == IEEE_B) /* 802.11b */
10390 *(__le16*)skb_put(dst, sizeof(u16)) =
10391 cpu_to_le16(IEEE80211_CHAN_CCK |
10392 IEEE80211_CHAN_2GHZ);
10393 else /* 802.11g */
10394 *(__le16*)skb_put(dst, sizeof(u16)) =
10395 cpu_to_le16(IEEE80211_CHAN_OFDM |
10396 IEEE80211_CHAN_2GHZ);
10397
10398 rt_hdr->it_len = cpu_to_le16(dst->len);
10399
10400 skb_copy_from_linear_data(src, skb_put(dst, len), len);
10401
10402 if (!libipw_rx(priv->prom_priv->ieee, dst, &dummystats))
10403 dev_kfree_skb_any(dst);
10404 }
10405 }
10406 #endif
10407
10408 static netdev_tx_t ipw_net_hard_start_xmit(struct libipw_txb *txb,
10409 struct net_device *dev, int pri)
10410 {
10411 struct ipw_priv *priv = libipw_priv(dev);
10412 unsigned long flags;
10413 netdev_tx_t ret;
10414
10415 IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
10416 spin_lock_irqsave(&priv->lock, flags);
10417
10418 #ifdef CONFIG_IPW2200_PROMISCUOUS
10419 if (rtap_iface && netif_running(priv->prom_net_dev))
10420 ipw_handle_promiscuous_tx(priv, txb);
10421 #endif
10422
10423 ret = ipw_tx_skb(priv, txb, pri);
10424 if (ret == NETDEV_TX_OK)
10425 __ipw_led_activity_on(priv);
10426 spin_unlock_irqrestore(&priv->lock, flags);
10427
10428 return ret;
10429 }
10430
10431 static void ipw_net_set_multicast_list(struct net_device *dev)
10432 {
10433
10434 }
10435
10436 static int ipw_net_set_mac_address(struct net_device *dev, void *p)
10437 {
10438 struct ipw_priv *priv = libipw_priv(dev);
10439 struct sockaddr *addr = p;
10440
10441 if (!is_valid_ether_addr(addr->sa_data))
10442 return -EADDRNOTAVAIL;
10443 mutex_lock(&priv->mutex);
10444 priv->config |= CFG_CUSTOM_MAC;
10445 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
10446 printk(KERN_INFO "%s: Setting MAC to %pM\n",
10447 priv->net_dev->name, priv->mac_addr);
10448 schedule_work(&priv->adapter_restart);
10449 mutex_unlock(&priv->mutex);
10450 return 0;
10451 }
10452
10453 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
10454 struct ethtool_drvinfo *info)
10455 {
10456 struct ipw_priv *p = libipw_priv(dev);
10457 char vers[64];
10458 char date[32];
10459 u32 len;
10460
10461 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
10462 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
10463
10464 len = sizeof(vers);
10465 ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
10466 len = sizeof(date);
10467 ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
10468
10469 snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)",
10470 vers, date);
10471 strlcpy(info->bus_info, pci_name(p->pci_dev),
10472 sizeof(info->bus_info));
10473 }
10474
10475 static u32 ipw_ethtool_get_link(struct net_device *dev)
10476 {
10477 struct ipw_priv *priv = libipw_priv(dev);
10478 return (priv->status & STATUS_ASSOCIATED) != 0;
10479 }
10480
10481 static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
10482 {
10483 return IPW_EEPROM_IMAGE_SIZE;
10484 }
10485
10486 static int ipw_ethtool_get_eeprom(struct net_device *dev,
10487 struct ethtool_eeprom *eeprom, u8 * bytes)
10488 {
10489 struct ipw_priv *p = libipw_priv(dev);
10490
10491 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10492 return -EINVAL;
10493 mutex_lock(&p->mutex);
10494 memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len);
10495 mutex_unlock(&p->mutex);
10496 return 0;
10497 }
10498
10499 static int ipw_ethtool_set_eeprom(struct net_device *dev,
10500 struct ethtool_eeprom *eeprom, u8 * bytes)
10501 {
10502 struct ipw_priv *p = libipw_priv(dev);
10503 int i;
10504
10505 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10506 return -EINVAL;
10507 mutex_lock(&p->mutex);
10508 memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len);
10509 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
10510 ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]);
10511 mutex_unlock(&p->mutex);
10512 return 0;
10513 }
10514
10515 static const struct ethtool_ops ipw_ethtool_ops = {
10516 .get_link = ipw_ethtool_get_link,
10517 .get_drvinfo = ipw_ethtool_get_drvinfo,
10518 .get_eeprom_len = ipw_ethtool_get_eeprom_len,
10519 .get_eeprom = ipw_ethtool_get_eeprom,
10520 .set_eeprom = ipw_ethtool_set_eeprom,
10521 };
10522
10523 static irqreturn_t ipw_isr(int irq, void *data)
10524 {
10525 struct ipw_priv *priv = data;
10526 u32 inta, inta_mask;
10527
10528 if (!priv)
10529 return IRQ_NONE;
10530
10531 spin_lock(&priv->irq_lock);
10532
10533 if (!(priv->status & STATUS_INT_ENABLED)) {
10534 /* IRQ is disabled */
10535 goto none;
10536 }
10537
10538 inta = ipw_read32(priv, IPW_INTA_RW);
10539 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
10540
10541 if (inta == 0xFFFFFFFF) {
10542 /* Hardware disappeared */
10543 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
10544 goto none;
10545 }
10546
10547 if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) {
10548 /* Shared interrupt */
10549 goto none;
10550 }
10551
10552 /* tell the device to stop sending interrupts */
10553 __ipw_disable_interrupts(priv);
10554
10555 /* ack current interrupts */
10556 inta &= (IPW_INTA_MASK_ALL & inta_mask);
10557 ipw_write32(priv, IPW_INTA_RW, inta);
10558
10559 /* Cache INTA value for our tasklet */
10560 priv->isr_inta = inta;
10561
10562 tasklet_schedule(&priv->irq_tasklet);
10563
10564 spin_unlock(&priv->irq_lock);
10565
10566 return IRQ_HANDLED;
10567 none:
10568 spin_unlock(&priv->irq_lock);
10569 return IRQ_NONE;
10570 }
10571
10572 static void ipw_rf_kill(void *adapter)
10573 {
10574 struct ipw_priv *priv = adapter;
10575 unsigned long flags;
10576
10577 spin_lock_irqsave(&priv->lock, flags);
10578
10579 if (rf_kill_active(priv)) {
10580 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
10581 schedule_delayed_work(&priv->rf_kill, 2 * HZ);
10582 goto exit_unlock;
10583 }
10584
10585 /* RF Kill is now disabled, so bring the device back up */
10586
10587 if (!(priv->status & STATUS_RF_KILL_MASK)) {
10588 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
10589 "device\n");
10590
10591 /* we can not do an adapter restart while inside an irq lock */
10592 schedule_work(&priv->adapter_restart);
10593 } else
10594 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
10595 "enabled\n");
10596
10597 exit_unlock:
10598 spin_unlock_irqrestore(&priv->lock, flags);
10599 }
10600
10601 static void ipw_bg_rf_kill(struct work_struct *work)
10602 {
10603 struct ipw_priv *priv =
10604 container_of(work, struct ipw_priv, rf_kill.work);
10605 mutex_lock(&priv->mutex);
10606 ipw_rf_kill(priv);
10607 mutex_unlock(&priv->mutex);
10608 }
10609
10610 static void ipw_link_up(struct ipw_priv *priv)
10611 {
10612 priv->last_seq_num = -1;
10613 priv->last_frag_num = -1;
10614 priv->last_packet_time = 0;
10615
10616 netif_carrier_on(priv->net_dev);
10617
10618 cancel_delayed_work(&priv->request_scan);
10619 cancel_delayed_work(&priv->request_direct_scan);
10620 cancel_delayed_work(&priv->request_passive_scan);
10621 cancel_delayed_work(&priv->scan_event);
10622 ipw_reset_stats(priv);
10623 /* Ensure the rate is updated immediately */
10624 priv->last_rate = ipw_get_current_rate(priv);
10625 ipw_gather_stats(priv);
10626 ipw_led_link_up(priv);
10627 notify_wx_assoc_event(priv);
10628
10629 if (priv->config & CFG_BACKGROUND_SCAN)
10630 schedule_delayed_work(&priv->request_scan, HZ);
10631 }
10632
10633 static void ipw_bg_link_up(struct work_struct *work)
10634 {
10635 struct ipw_priv *priv =
10636 container_of(work, struct ipw_priv, link_up);
10637 mutex_lock(&priv->mutex);
10638 ipw_link_up(priv);
10639 mutex_unlock(&priv->mutex);
10640 }
10641
10642 static void ipw_link_down(struct ipw_priv *priv)
10643 {
10644 ipw_led_link_down(priv);
10645 netif_carrier_off(priv->net_dev);
10646 notify_wx_assoc_event(priv);
10647
10648 /* Cancel any queued work ... */
10649 cancel_delayed_work(&priv->request_scan);
10650 cancel_delayed_work(&priv->request_direct_scan);
10651 cancel_delayed_work(&priv->request_passive_scan);
10652 cancel_delayed_work(&priv->adhoc_check);
10653 cancel_delayed_work(&priv->gather_stats);
10654
10655 ipw_reset_stats(priv);
10656
10657 if (!(priv->status & STATUS_EXIT_PENDING)) {
10658 /* Queue up another scan... */
10659 schedule_delayed_work(&priv->request_scan, 0);
10660 } else
10661 cancel_delayed_work(&priv->scan_event);
10662 }
10663
10664 static void ipw_bg_link_down(struct work_struct *work)
10665 {
10666 struct ipw_priv *priv =
10667 container_of(work, struct ipw_priv, link_down);
10668 mutex_lock(&priv->mutex);
10669 ipw_link_down(priv);
10670 mutex_unlock(&priv->mutex);
10671 }
10672
10673 static int ipw_setup_deferred_work(struct ipw_priv *priv)
10674 {
10675 int ret = 0;
10676
10677 init_waitqueue_head(&priv->wait_command_queue);
10678 init_waitqueue_head(&priv->wait_state);
10679
10680 INIT_DELAYED_WORK(&priv->adhoc_check, ipw_bg_adhoc_check);
10681 INIT_WORK(&priv->associate, ipw_bg_associate);
10682 INIT_WORK(&priv->disassociate, ipw_bg_disassociate);
10683 INIT_WORK(&priv->system_config, ipw_system_config);
10684 INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish);
10685 INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart);
10686 INIT_DELAYED_WORK(&priv->rf_kill, ipw_bg_rf_kill);
10687 INIT_WORK(&priv->up, ipw_bg_up);
10688 INIT_WORK(&priv->down, ipw_bg_down);
10689 INIT_DELAYED_WORK(&priv->request_scan, ipw_request_scan);
10690 INIT_DELAYED_WORK(&priv->request_direct_scan, ipw_request_direct_scan);
10691 INIT_DELAYED_WORK(&priv->request_passive_scan, ipw_request_passive_scan);
10692 INIT_DELAYED_WORK(&priv->scan_event, ipw_scan_event);
10693 INIT_DELAYED_WORK(&priv->gather_stats, ipw_bg_gather_stats);
10694 INIT_WORK(&priv->abort_scan, ipw_bg_abort_scan);
10695 INIT_WORK(&priv->roam, ipw_bg_roam);
10696 INIT_DELAYED_WORK(&priv->scan_check, ipw_bg_scan_check);
10697 INIT_WORK(&priv->link_up, ipw_bg_link_up);
10698 INIT_WORK(&priv->link_down, ipw_bg_link_down);
10699 INIT_DELAYED_WORK(&priv->led_link_on, ipw_bg_led_link_on);
10700 INIT_DELAYED_WORK(&priv->led_link_off, ipw_bg_led_link_off);
10701 INIT_DELAYED_WORK(&priv->led_act_off, ipw_bg_led_activity_off);
10702 INIT_WORK(&priv->merge_networks, ipw_merge_adhoc_network);
10703
10704 #ifdef CONFIG_IPW2200_QOS
10705 INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate);
10706 #endif /* CONFIG_IPW2200_QOS */
10707
10708 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
10709 ipw_irq_tasklet, (unsigned long)priv);
10710
10711 return ret;
10712 }
10713
10714 static void shim__set_security(struct net_device *dev,
10715 struct libipw_security *sec)
10716 {
10717 struct ipw_priv *priv = libipw_priv(dev);
10718 int i;
10719 for (i = 0; i < 4; i++) {
10720 if (sec->flags & (1 << i)) {
10721 priv->ieee->sec.encode_alg[i] = sec->encode_alg[i];
10722 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
10723 if (sec->key_sizes[i] == 0)
10724 priv->ieee->sec.flags &= ~(1 << i);
10725 else {
10726 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
10727 sec->key_sizes[i]);
10728 priv->ieee->sec.flags |= (1 << i);
10729 }
10730 priv->status |= STATUS_SECURITY_UPDATED;
10731 } else if (sec->level != SEC_LEVEL_1)
10732 priv->ieee->sec.flags &= ~(1 << i);
10733 }
10734
10735 if (sec->flags & SEC_ACTIVE_KEY) {
10736 if (sec->active_key <= 3) {
10737 priv->ieee->sec.active_key = sec->active_key;
10738 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
10739 } else
10740 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10741 priv->status |= STATUS_SECURITY_UPDATED;
10742 } else
10743 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10744
10745 if ((sec->flags & SEC_AUTH_MODE) &&
10746 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
10747 priv->ieee->sec.auth_mode = sec->auth_mode;
10748 priv->ieee->sec.flags |= SEC_AUTH_MODE;
10749 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
10750 priv->capability |= CAP_SHARED_KEY;
10751 else
10752 priv->capability &= ~CAP_SHARED_KEY;
10753 priv->status |= STATUS_SECURITY_UPDATED;
10754 }
10755
10756 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
10757 priv->ieee->sec.flags |= SEC_ENABLED;
10758 priv->ieee->sec.enabled = sec->enabled;
10759 priv->status |= STATUS_SECURITY_UPDATED;
10760 if (sec->enabled)
10761 priv->capability |= CAP_PRIVACY_ON;
10762 else
10763 priv->capability &= ~CAP_PRIVACY_ON;
10764 }
10765
10766 if (sec->flags & SEC_ENCRYPT)
10767 priv->ieee->sec.encrypt = sec->encrypt;
10768
10769 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
10770 priv->ieee->sec.level = sec->level;
10771 priv->ieee->sec.flags |= SEC_LEVEL;
10772 priv->status |= STATUS_SECURITY_UPDATED;
10773 }
10774
10775 if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT))
10776 ipw_set_hwcrypto_keys(priv);
10777
10778 /* To match current functionality of ipw2100 (which works well w/
10779 * various supplicants, we don't force a disassociate if the
10780 * privacy capability changes ... */
10781 #if 0
10782 if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
10783 (((priv->assoc_request.capability &
10784 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && !sec->enabled) ||
10785 (!(priv->assoc_request.capability &
10786 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && sec->enabled))) {
10787 IPW_DEBUG_ASSOC("Disassociating due to capability "
10788 "change.\n");
10789 ipw_disassociate(priv);
10790 }
10791 #endif
10792 }
10793
10794 static int init_supported_rates(struct ipw_priv *priv,
10795 struct ipw_supported_rates *rates)
10796 {
10797 /* TODO: Mask out rates based on priv->rates_mask */
10798
10799 memset(rates, 0, sizeof(*rates));
10800 /* configure supported rates */
10801 switch (priv->ieee->freq_band) {
10802 case LIBIPW_52GHZ_BAND:
10803 rates->ieee_mode = IPW_A_MODE;
10804 rates->purpose = IPW_RATE_CAPABILITIES;
10805 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION,
10806 LIBIPW_OFDM_DEFAULT_RATES_MASK);
10807 break;
10808
10809 default: /* Mixed or 2.4Ghz */
10810 rates->ieee_mode = IPW_G_MODE;
10811 rates->purpose = IPW_RATE_CAPABILITIES;
10812 ipw_add_cck_scan_rates(rates, LIBIPW_CCK_MODULATION,
10813 LIBIPW_CCK_DEFAULT_RATES_MASK);
10814 if (priv->ieee->modulation & LIBIPW_OFDM_MODULATION) {
10815 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION,
10816 LIBIPW_OFDM_DEFAULT_RATES_MASK);
10817 }
10818 break;
10819 }
10820
10821 return 0;
10822 }
10823
10824 static int ipw_config(struct ipw_priv *priv)
10825 {
10826 /* This is only called from ipw_up, which resets/reloads the firmware
10827 so, we don't need to first disable the card before we configure
10828 it */
10829 if (ipw_set_tx_power(priv))
10830 goto error;
10831
10832 /* initialize adapter address */
10833 if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
10834 goto error;
10835
10836 /* set basic system config settings */
10837 init_sys_config(&priv->sys_config);
10838
10839 /* Support Bluetooth if we have BT h/w on board, and user wants to.
10840 * Does not support BT priority yet (don't abort or defer our Tx) */
10841 if (bt_coexist) {
10842 unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY];
10843
10844 if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG)
10845 priv->sys_config.bt_coexistence
10846 |= CFG_BT_COEXISTENCE_SIGNAL_CHNL;
10847 if (bt_caps & EEPROM_SKU_CAP_BT_OOB)
10848 priv->sys_config.bt_coexistence
10849 |= CFG_BT_COEXISTENCE_OOB;
10850 }
10851
10852 #ifdef CONFIG_IPW2200_PROMISCUOUS
10853 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
10854 priv->sys_config.accept_all_data_frames = 1;
10855 priv->sys_config.accept_non_directed_frames = 1;
10856 priv->sys_config.accept_all_mgmt_bcpr = 1;
10857 priv->sys_config.accept_all_mgmt_frames = 1;
10858 }
10859 #endif
10860
10861 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
10862 priv->sys_config.answer_broadcast_ssid_probe = 1;
10863 else
10864 priv->sys_config.answer_broadcast_ssid_probe = 0;
10865
10866 if (ipw_send_system_config(priv))
10867 goto error;
10868
10869 init_supported_rates(priv, &priv->rates);
10870 if (ipw_send_supported_rates(priv, &priv->rates))
10871 goto error;
10872
10873 /* Set request-to-send threshold */
10874 if (priv->rts_threshold) {
10875 if (ipw_send_rts_threshold(priv, priv->rts_threshold))
10876 goto error;
10877 }
10878 #ifdef CONFIG_IPW2200_QOS
10879 IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n");
10880 ipw_qos_activate(priv, NULL);
10881 #endif /* CONFIG_IPW2200_QOS */
10882
10883 if (ipw_set_random_seed(priv))
10884 goto error;
10885
10886 /* final state transition to the RUN state */
10887 if (ipw_send_host_complete(priv))
10888 goto error;
10889
10890 priv->status |= STATUS_INIT;
10891
10892 ipw_led_init(priv);
10893 ipw_led_radio_on(priv);
10894 priv->notif_missed_beacons = 0;
10895
10896 /* Set hardware WEP key if it is configured. */
10897 if ((priv->capability & CAP_PRIVACY_ON) &&
10898 (priv->ieee->sec.level == SEC_LEVEL_1) &&
10899 !(priv->ieee->host_encrypt || priv->ieee->host_decrypt))
10900 ipw_set_hwcrypto_keys(priv);
10901
10902 return 0;
10903
10904 error:
10905 return -EIO;
10906 }
10907
10908 /*
10909 * NOTE:
10910 *
10911 * These tables have been tested in conjunction with the
10912 * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters.
10913 *
10914 * Altering this values, using it on other hardware, or in geographies
10915 * not intended for resale of the above mentioned Intel adapters has
10916 * not been tested.
10917 *
10918 * Remember to update the table in README.ipw2200 when changing this
10919 * table.
10920 *
10921 */
10922 static const struct libipw_geo ipw_geos[] = {
10923 { /* Restricted */
10924 "---",
10925 .bg_channels = 11,
10926 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10927 {2427, 4}, {2432, 5}, {2437, 6},
10928 {2442, 7}, {2447, 8}, {2452, 9},
10929 {2457, 10}, {2462, 11}},
10930 },
10931
10932 { /* Custom US/Canada */
10933 "ZZF",
10934 .bg_channels = 11,
10935 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10936 {2427, 4}, {2432, 5}, {2437, 6},
10937 {2442, 7}, {2447, 8}, {2452, 9},
10938 {2457, 10}, {2462, 11}},
10939 .a_channels = 8,
10940 .a = {{5180, 36},
10941 {5200, 40},
10942 {5220, 44},
10943 {5240, 48},
10944 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
10945 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
10946 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
10947 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}},
10948 },
10949
10950 { /* Rest of World */
10951 "ZZD",
10952 .bg_channels = 13,
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}, {2467, 12},
10957 {2472, 13}},
10958 },
10959
10960 { /* Custom USA & Europe & High */
10961 "ZZA",
10962 .bg_channels = 11,
10963 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10964 {2427, 4}, {2432, 5}, {2437, 6},
10965 {2442, 7}, {2447, 8}, {2452, 9},
10966 {2457, 10}, {2462, 11}},
10967 .a_channels = 13,
10968 .a = {{5180, 36},
10969 {5200, 40},
10970 {5220, 44},
10971 {5240, 48},
10972 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
10973 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
10974 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
10975 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
10976 {5745, 149},
10977 {5765, 153},
10978 {5785, 157},
10979 {5805, 161},
10980 {5825, 165}},
10981 },
10982
10983 { /* Custom NA & Europe */
10984 "ZZB",
10985 .bg_channels = 11,
10986 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10987 {2427, 4}, {2432, 5}, {2437, 6},
10988 {2442, 7}, {2447, 8}, {2452, 9},
10989 {2457, 10}, {2462, 11}},
10990 .a_channels = 13,
10991 .a = {{5180, 36},
10992 {5200, 40},
10993 {5220, 44},
10994 {5240, 48},
10995 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
10996 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
10997 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
10998 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
10999 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11000 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11001 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11002 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11003 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11004 },
11005
11006 { /* Custom Japan */
11007 "ZZC",
11008 .bg_channels = 11,
11009 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11010 {2427, 4}, {2432, 5}, {2437, 6},
11011 {2442, 7}, {2447, 8}, {2452, 9},
11012 {2457, 10}, {2462, 11}},
11013 .a_channels = 4,
11014 .a = {{5170, 34}, {5190, 38},
11015 {5210, 42}, {5230, 46}},
11016 },
11017
11018 { /* Custom */
11019 "ZZM",
11020 .bg_channels = 11,
11021 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11022 {2427, 4}, {2432, 5}, {2437, 6},
11023 {2442, 7}, {2447, 8}, {2452, 9},
11024 {2457, 10}, {2462, 11}},
11025 },
11026
11027 { /* Europe */
11028 "ZZE",
11029 .bg_channels = 13,
11030 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11031 {2427, 4}, {2432, 5}, {2437, 6},
11032 {2442, 7}, {2447, 8}, {2452, 9},
11033 {2457, 10}, {2462, 11}, {2467, 12},
11034 {2472, 13}},
11035 .a_channels = 19,
11036 .a = {{5180, 36},
11037 {5200, 40},
11038 {5220, 44},
11039 {5240, 48},
11040 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11041 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11042 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11043 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11044 {5500, 100, LIBIPW_CH_PASSIVE_ONLY},
11045 {5520, 104, LIBIPW_CH_PASSIVE_ONLY},
11046 {5540, 108, LIBIPW_CH_PASSIVE_ONLY},
11047 {5560, 112, LIBIPW_CH_PASSIVE_ONLY},
11048 {5580, 116, LIBIPW_CH_PASSIVE_ONLY},
11049 {5600, 120, LIBIPW_CH_PASSIVE_ONLY},
11050 {5620, 124, LIBIPW_CH_PASSIVE_ONLY},
11051 {5640, 128, LIBIPW_CH_PASSIVE_ONLY},
11052 {5660, 132, LIBIPW_CH_PASSIVE_ONLY},
11053 {5680, 136, LIBIPW_CH_PASSIVE_ONLY},
11054 {5700, 140, LIBIPW_CH_PASSIVE_ONLY}},
11055 },
11056
11057 { /* Custom Japan */
11058 "ZZJ",
11059 .bg_channels = 14,
11060 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11061 {2427, 4}, {2432, 5}, {2437, 6},
11062 {2442, 7}, {2447, 8}, {2452, 9},
11063 {2457, 10}, {2462, 11}, {2467, 12},
11064 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY}},
11065 .a_channels = 4,
11066 .a = {{5170, 34}, {5190, 38},
11067 {5210, 42}, {5230, 46}},
11068 },
11069
11070 { /* Rest of World */
11071 "ZZR",
11072 .bg_channels = 14,
11073 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11074 {2427, 4}, {2432, 5}, {2437, 6},
11075 {2442, 7}, {2447, 8}, {2452, 9},
11076 {2457, 10}, {2462, 11}, {2467, 12},
11077 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY |
11078 LIBIPW_CH_PASSIVE_ONLY}},
11079 },
11080
11081 { /* High Band */
11082 "ZZH",
11083 .bg_channels = 13,
11084 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11085 {2427, 4}, {2432, 5}, {2437, 6},
11086 {2442, 7}, {2447, 8}, {2452, 9},
11087 {2457, 10}, {2462, 11},
11088 {2467, 12, LIBIPW_CH_PASSIVE_ONLY},
11089 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}},
11090 .a_channels = 4,
11091 .a = {{5745, 149}, {5765, 153},
11092 {5785, 157}, {5805, 161}},
11093 },
11094
11095 { /* Custom Europe */
11096 "ZZG",
11097 .bg_channels = 13,
11098 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11099 {2427, 4}, {2432, 5}, {2437, 6},
11100 {2442, 7}, {2447, 8}, {2452, 9},
11101 {2457, 10}, {2462, 11},
11102 {2467, 12}, {2472, 13}},
11103 .a_channels = 4,
11104 .a = {{5180, 36}, {5200, 40},
11105 {5220, 44}, {5240, 48}},
11106 },
11107
11108 { /* Europe */
11109 "ZZK",
11110 .bg_channels = 13,
11111 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11112 {2427, 4}, {2432, 5}, {2437, 6},
11113 {2442, 7}, {2447, 8}, {2452, 9},
11114 {2457, 10}, {2462, 11},
11115 {2467, 12, LIBIPW_CH_PASSIVE_ONLY},
11116 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}},
11117 .a_channels = 24,
11118 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY},
11119 {5200, 40, LIBIPW_CH_PASSIVE_ONLY},
11120 {5220, 44, LIBIPW_CH_PASSIVE_ONLY},
11121 {5240, 48, LIBIPW_CH_PASSIVE_ONLY},
11122 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11123 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11124 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11125 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11126 {5500, 100, LIBIPW_CH_PASSIVE_ONLY},
11127 {5520, 104, LIBIPW_CH_PASSIVE_ONLY},
11128 {5540, 108, LIBIPW_CH_PASSIVE_ONLY},
11129 {5560, 112, LIBIPW_CH_PASSIVE_ONLY},
11130 {5580, 116, LIBIPW_CH_PASSIVE_ONLY},
11131 {5600, 120, LIBIPW_CH_PASSIVE_ONLY},
11132 {5620, 124, LIBIPW_CH_PASSIVE_ONLY},
11133 {5640, 128, LIBIPW_CH_PASSIVE_ONLY},
11134 {5660, 132, LIBIPW_CH_PASSIVE_ONLY},
11135 {5680, 136, LIBIPW_CH_PASSIVE_ONLY},
11136 {5700, 140, LIBIPW_CH_PASSIVE_ONLY},
11137 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11138 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11139 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11140 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11141 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11142 },
11143
11144 { /* Europe */
11145 "ZZL",
11146 .bg_channels = 11,
11147 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11148 {2427, 4}, {2432, 5}, {2437, 6},
11149 {2442, 7}, {2447, 8}, {2452, 9},
11150 {2457, 10}, {2462, 11}},
11151 .a_channels = 13,
11152 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY},
11153 {5200, 40, LIBIPW_CH_PASSIVE_ONLY},
11154 {5220, 44, LIBIPW_CH_PASSIVE_ONLY},
11155 {5240, 48, LIBIPW_CH_PASSIVE_ONLY},
11156 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11157 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11158 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11159 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11160 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11161 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11162 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11163 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11164 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11165 }
11166 };
11167
11168 static void ipw_set_geo(struct ipw_priv *priv)
11169 {
11170 int j;
11171
11172 for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) {
11173 if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE],
11174 ipw_geos[j].name, 3))
11175 break;
11176 }
11177
11178 if (j == ARRAY_SIZE(ipw_geos)) {
11179 IPW_WARNING("SKU [%c%c%c] not recognized.\n",
11180 priv->eeprom[EEPROM_COUNTRY_CODE + 0],
11181 priv->eeprom[EEPROM_COUNTRY_CODE + 1],
11182 priv->eeprom[EEPROM_COUNTRY_CODE + 2]);
11183 j = 0;
11184 }
11185
11186 libipw_set_geo(priv->ieee, &ipw_geos[j]);
11187 }
11188
11189 #define MAX_HW_RESTARTS 5
11190 static int ipw_up(struct ipw_priv *priv)
11191 {
11192 int rc, i;
11193
11194 /* Age scan list entries found before suspend */
11195 if (priv->suspend_time) {
11196 libipw_networks_age(priv->ieee, priv->suspend_time);
11197 priv->suspend_time = 0;
11198 }
11199
11200 if (priv->status & STATUS_EXIT_PENDING)
11201 return -EIO;
11202
11203 if (cmdlog && !priv->cmdlog) {
11204 priv->cmdlog = kcalloc(cmdlog, sizeof(*priv->cmdlog),
11205 GFP_KERNEL);
11206 if (priv->cmdlog == NULL) {
11207 IPW_ERROR("Error allocating %d command log entries.\n",
11208 cmdlog);
11209 return -ENOMEM;
11210 } else {
11211 priv->cmdlog_len = cmdlog;
11212 }
11213 }
11214
11215 for (i = 0; i < MAX_HW_RESTARTS; i++) {
11216 /* Load the microcode, firmware, and eeprom.
11217 * Also start the clocks. */
11218 rc = ipw_load(priv);
11219 if (rc) {
11220 IPW_ERROR("Unable to load firmware: %d\n", rc);
11221 return rc;
11222 }
11223
11224 ipw_init_ordinals(priv);
11225 if (!(priv->config & CFG_CUSTOM_MAC))
11226 eeprom_parse_mac(priv, priv->mac_addr);
11227 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11228
11229 ipw_set_geo(priv);
11230
11231 if (priv->status & STATUS_RF_KILL_SW) {
11232 IPW_WARNING("Radio disabled by module parameter.\n");
11233 return 0;
11234 } else if (rf_kill_active(priv)) {
11235 IPW_WARNING("Radio Frequency Kill Switch is On:\n"
11236 "Kill switch must be turned off for "
11237 "wireless networking to work.\n");
11238 schedule_delayed_work(&priv->rf_kill, 2 * HZ);
11239 return 0;
11240 }
11241
11242 rc = ipw_config(priv);
11243 if (!rc) {
11244 IPW_DEBUG_INFO("Configured device on count %i\n", i);
11245
11246 /* If configure to try and auto-associate, kick
11247 * off a scan. */
11248 schedule_delayed_work(&priv->request_scan, 0);
11249
11250 return 0;
11251 }
11252
11253 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc);
11254 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
11255 i, MAX_HW_RESTARTS);
11256
11257 /* We had an error bringing up the hardware, so take it
11258 * all the way back down so we can try again */
11259 ipw_down(priv);
11260 }
11261
11262 /* tried to restart and config the device for as long as our
11263 * patience could withstand */
11264 IPW_ERROR("Unable to initialize device after %d attempts.\n", i);
11265
11266 return -EIO;
11267 }
11268
11269 static void ipw_bg_up(struct work_struct *work)
11270 {
11271 struct ipw_priv *priv =
11272 container_of(work, struct ipw_priv, up);
11273 mutex_lock(&priv->mutex);
11274 ipw_up(priv);
11275 mutex_unlock(&priv->mutex);
11276 }
11277
11278 static void ipw_deinit(struct ipw_priv *priv)
11279 {
11280 int i;
11281
11282 if (priv->status & STATUS_SCANNING) {
11283 IPW_DEBUG_INFO("Aborting scan during shutdown.\n");
11284 ipw_abort_scan(priv);
11285 }
11286
11287 if (priv->status & STATUS_ASSOCIATED) {
11288 IPW_DEBUG_INFO("Disassociating during shutdown.\n");
11289 ipw_disassociate(priv);
11290 }
11291
11292 ipw_led_shutdown(priv);
11293
11294 /* Wait up to 1s for status to change to not scanning and not
11295 * associated (disassociation can take a while for a ful 802.11
11296 * exchange */
11297 for (i = 1000; i && (priv->status &
11298 (STATUS_DISASSOCIATING |
11299 STATUS_ASSOCIATED | STATUS_SCANNING)); i--)
11300 udelay(10);
11301
11302 if (priv->status & (STATUS_DISASSOCIATING |
11303 STATUS_ASSOCIATED | STATUS_SCANNING))
11304 IPW_DEBUG_INFO("Still associated or scanning...\n");
11305 else
11306 IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i);
11307
11308 /* Attempt to disable the card */
11309 ipw_send_card_disable(priv, 0);
11310
11311 priv->status &= ~STATUS_INIT;
11312 }
11313
11314 static void ipw_down(struct ipw_priv *priv)
11315 {
11316 int exit_pending = priv->status & STATUS_EXIT_PENDING;
11317
11318 priv->status |= STATUS_EXIT_PENDING;
11319
11320 if (ipw_is_init(priv))
11321 ipw_deinit(priv);
11322
11323 /* Wipe out the EXIT_PENDING status bit if we are not actually
11324 * exiting the module */
11325 if (!exit_pending)
11326 priv->status &= ~STATUS_EXIT_PENDING;
11327
11328 /* tell the device to stop sending interrupts */
11329 ipw_disable_interrupts(priv);
11330
11331 /* Clear all bits but the RF Kill */
11332 priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING;
11333 netif_carrier_off(priv->net_dev);
11334
11335 ipw_stop_nic(priv);
11336
11337 ipw_led_radio_off(priv);
11338 }
11339
11340 static void ipw_bg_down(struct work_struct *work)
11341 {
11342 struct ipw_priv *priv =
11343 container_of(work, struct ipw_priv, down);
11344 mutex_lock(&priv->mutex);
11345 ipw_down(priv);
11346 mutex_unlock(&priv->mutex);
11347 }
11348
11349 static int ipw_wdev_init(struct net_device *dev)
11350 {
11351 int i, rc = 0;
11352 struct ipw_priv *priv = libipw_priv(dev);
11353 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
11354 struct wireless_dev *wdev = &priv->ieee->wdev;
11355
11356 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
11357
11358 /* fill-out priv->ieee->bg_band */
11359 if (geo->bg_channels) {
11360 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
11361
11362 bg_band->band = IEEE80211_BAND_2GHZ;
11363 bg_band->n_channels = geo->bg_channels;
11364 bg_band->channels = kcalloc(geo->bg_channels,
11365 sizeof(struct ieee80211_channel),
11366 GFP_KERNEL);
11367 if (!bg_band->channels) {
11368 rc = -ENOMEM;
11369 goto out;
11370 }
11371 /* translate geo->bg to bg_band.channels */
11372 for (i = 0; i < geo->bg_channels; i++) {
11373 bg_band->channels[i].band = IEEE80211_BAND_2GHZ;
11374 bg_band->channels[i].center_freq = geo->bg[i].freq;
11375 bg_band->channels[i].hw_value = geo->bg[i].channel;
11376 bg_band->channels[i].max_power = geo->bg[i].max_power;
11377 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
11378 bg_band->channels[i].flags |=
11379 IEEE80211_CHAN_NO_IR;
11380 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
11381 bg_band->channels[i].flags |=
11382 IEEE80211_CHAN_NO_IR;
11383 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
11384 bg_band->channels[i].flags |=
11385 IEEE80211_CHAN_RADAR;
11386 /* No equivalent for LIBIPW_CH_80211H_RULES,
11387 LIBIPW_CH_UNIFORM_SPREADING, or
11388 LIBIPW_CH_B_ONLY... */
11389 }
11390 /* point at bitrate info */
11391 bg_band->bitrates = ipw2200_bg_rates;
11392 bg_band->n_bitrates = ipw2200_num_bg_rates;
11393
11394 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = bg_band;
11395 }
11396
11397 /* fill-out priv->ieee->a_band */
11398 if (geo->a_channels) {
11399 struct ieee80211_supported_band *a_band = &priv->ieee->a_band;
11400
11401 a_band->band = IEEE80211_BAND_5GHZ;
11402 a_band->n_channels = geo->a_channels;
11403 a_band->channels = kcalloc(geo->a_channels,
11404 sizeof(struct ieee80211_channel),
11405 GFP_KERNEL);
11406 if (!a_band->channels) {
11407 rc = -ENOMEM;
11408 goto out;
11409 }
11410 /* translate geo->a to a_band.channels */
11411 for (i = 0; i < geo->a_channels; i++) {
11412 a_band->channels[i].band = IEEE80211_BAND_5GHZ;
11413 a_band->channels[i].center_freq = geo->a[i].freq;
11414 a_band->channels[i].hw_value = geo->a[i].channel;
11415 a_band->channels[i].max_power = geo->a[i].max_power;
11416 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY)
11417 a_band->channels[i].flags |=
11418 IEEE80211_CHAN_NO_IR;
11419 if (geo->a[i].flags & LIBIPW_CH_NO_IBSS)
11420 a_band->channels[i].flags |=
11421 IEEE80211_CHAN_NO_IR;
11422 if (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT)
11423 a_band->channels[i].flags |=
11424 IEEE80211_CHAN_RADAR;
11425 /* No equivalent for LIBIPW_CH_80211H_RULES,
11426 LIBIPW_CH_UNIFORM_SPREADING, or
11427 LIBIPW_CH_B_ONLY... */
11428 }
11429 /* point at bitrate info */
11430 a_band->bitrates = ipw2200_a_rates;
11431 a_band->n_bitrates = ipw2200_num_a_rates;
11432
11433 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = a_band;
11434 }
11435
11436 wdev->wiphy->cipher_suites = ipw_cipher_suites;
11437 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
11438
11439 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
11440
11441 /* With that information in place, we can now register the wiphy... */
11442 if (wiphy_register(wdev->wiphy))
11443 rc = -EIO;
11444 out:
11445 return rc;
11446 }
11447
11448 /* PCI driver stuff */
11449 static const struct pci_device_id card_ids[] = {
11450 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
11451 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
11452 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
11453 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
11454 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
11455 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
11456 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
11457 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
11458 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
11459 {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
11460 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
11461 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
11462 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
11463 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
11464 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
11465 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
11466 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
11467 {PCI_VDEVICE(INTEL, 0x104f), 0},
11468 {PCI_VDEVICE(INTEL, 0x4220), 0}, /* BG */
11469 {PCI_VDEVICE(INTEL, 0x4221), 0}, /* BG */
11470 {PCI_VDEVICE(INTEL, 0x4223), 0}, /* ABG */
11471 {PCI_VDEVICE(INTEL, 0x4224), 0}, /* ABG */
11472
11473 /* required last entry */
11474 {0,}
11475 };
11476
11477 MODULE_DEVICE_TABLE(pci, card_ids);
11478
11479 static struct attribute *ipw_sysfs_entries[] = {
11480 &dev_attr_rf_kill.attr,
11481 &dev_attr_direct_dword.attr,
11482 &dev_attr_indirect_byte.attr,
11483 &dev_attr_indirect_dword.attr,
11484 &dev_attr_mem_gpio_reg.attr,
11485 &dev_attr_command_event_reg.attr,
11486 &dev_attr_nic_type.attr,
11487 &dev_attr_status.attr,
11488 &dev_attr_cfg.attr,
11489 &dev_attr_error.attr,
11490 &dev_attr_event_log.attr,
11491 &dev_attr_cmd_log.attr,
11492 &dev_attr_eeprom_delay.attr,
11493 &dev_attr_ucode_version.attr,
11494 &dev_attr_rtc.attr,
11495 &dev_attr_scan_age.attr,
11496 &dev_attr_led.attr,
11497 &dev_attr_speed_scan.attr,
11498 &dev_attr_net_stats.attr,
11499 &dev_attr_channels.attr,
11500 #ifdef CONFIG_IPW2200_PROMISCUOUS
11501 &dev_attr_rtap_iface.attr,
11502 &dev_attr_rtap_filter.attr,
11503 #endif
11504 NULL
11505 };
11506
11507 static struct attribute_group ipw_attribute_group = {
11508 .name = NULL, /* put in device directory */
11509 .attrs = ipw_sysfs_entries,
11510 };
11511
11512 #ifdef CONFIG_IPW2200_PROMISCUOUS
11513 static int ipw_prom_open(struct net_device *dev)
11514 {
11515 struct ipw_prom_priv *prom_priv = libipw_priv(dev);
11516 struct ipw_priv *priv = prom_priv->priv;
11517
11518 IPW_DEBUG_INFO("prom dev->open\n");
11519 netif_carrier_off(dev);
11520
11521 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11522 priv->sys_config.accept_all_data_frames = 1;
11523 priv->sys_config.accept_non_directed_frames = 1;
11524 priv->sys_config.accept_all_mgmt_bcpr = 1;
11525 priv->sys_config.accept_all_mgmt_frames = 1;
11526
11527 ipw_send_system_config(priv);
11528 }
11529
11530 return 0;
11531 }
11532
11533 static int ipw_prom_stop(struct net_device *dev)
11534 {
11535 struct ipw_prom_priv *prom_priv = libipw_priv(dev);
11536 struct ipw_priv *priv = prom_priv->priv;
11537
11538 IPW_DEBUG_INFO("prom dev->stop\n");
11539
11540 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11541 priv->sys_config.accept_all_data_frames = 0;
11542 priv->sys_config.accept_non_directed_frames = 0;
11543 priv->sys_config.accept_all_mgmt_bcpr = 0;
11544 priv->sys_config.accept_all_mgmt_frames = 0;
11545
11546 ipw_send_system_config(priv);
11547 }
11548
11549 return 0;
11550 }
11551
11552 static netdev_tx_t ipw_prom_hard_start_xmit(struct sk_buff *skb,
11553 struct net_device *dev)
11554 {
11555 IPW_DEBUG_INFO("prom dev->xmit\n");
11556 dev_kfree_skb(skb);
11557 return NETDEV_TX_OK;
11558 }
11559
11560 static const struct net_device_ops ipw_prom_netdev_ops = {
11561 .ndo_open = ipw_prom_open,
11562 .ndo_stop = ipw_prom_stop,
11563 .ndo_start_xmit = ipw_prom_hard_start_xmit,
11564 .ndo_change_mtu = libipw_change_mtu,
11565 .ndo_set_mac_address = eth_mac_addr,
11566 .ndo_validate_addr = eth_validate_addr,
11567 };
11568
11569 static int ipw_prom_alloc(struct ipw_priv *priv)
11570 {
11571 int rc = 0;
11572
11573 if (priv->prom_net_dev)
11574 return -EPERM;
11575
11576 priv->prom_net_dev = alloc_libipw(sizeof(struct ipw_prom_priv), 1);
11577 if (priv->prom_net_dev == NULL)
11578 return -ENOMEM;
11579
11580 priv->prom_priv = libipw_priv(priv->prom_net_dev);
11581 priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev);
11582 priv->prom_priv->priv = priv;
11583
11584 strcpy(priv->prom_net_dev->name, "rtap%d");
11585 memcpy(priv->prom_net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11586
11587 priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
11588 priv->prom_net_dev->netdev_ops = &ipw_prom_netdev_ops;
11589
11590 priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR;
11591 SET_NETDEV_DEV(priv->prom_net_dev, &priv->pci_dev->dev);
11592
11593 rc = register_netdev(priv->prom_net_dev);
11594 if (rc) {
11595 free_libipw(priv->prom_net_dev, 1);
11596 priv->prom_net_dev = NULL;
11597 return rc;
11598 }
11599
11600 return 0;
11601 }
11602
11603 static void ipw_prom_free(struct ipw_priv *priv)
11604 {
11605 if (!priv->prom_net_dev)
11606 return;
11607
11608 unregister_netdev(priv->prom_net_dev);
11609 free_libipw(priv->prom_net_dev, 1);
11610
11611 priv->prom_net_dev = NULL;
11612 }
11613
11614 #endif
11615
11616 static const struct net_device_ops ipw_netdev_ops = {
11617 .ndo_open = ipw_net_open,
11618 .ndo_stop = ipw_net_stop,
11619 .ndo_set_rx_mode = ipw_net_set_multicast_list,
11620 .ndo_set_mac_address = ipw_net_set_mac_address,
11621 .ndo_start_xmit = libipw_xmit,
11622 .ndo_change_mtu = libipw_change_mtu,
11623 .ndo_validate_addr = eth_validate_addr,
11624 };
11625
11626 static int ipw_pci_probe(struct pci_dev *pdev,
11627 const struct pci_device_id *ent)
11628 {
11629 int err = 0;
11630 struct net_device *net_dev;
11631 void __iomem *base;
11632 u32 length, val;
11633 struct ipw_priv *priv;
11634 int i;
11635
11636 net_dev = alloc_libipw(sizeof(struct ipw_priv), 0);
11637 if (net_dev == NULL) {
11638 err = -ENOMEM;
11639 goto out;
11640 }
11641
11642 priv = libipw_priv(net_dev);
11643 priv->ieee = netdev_priv(net_dev);
11644
11645 priv->net_dev = net_dev;
11646 priv->pci_dev = pdev;
11647 ipw_debug_level = debug;
11648 spin_lock_init(&priv->irq_lock);
11649 spin_lock_init(&priv->lock);
11650 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++)
11651 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
11652
11653 mutex_init(&priv->mutex);
11654 if (pci_enable_device(pdev)) {
11655 err = -ENODEV;
11656 goto out_free_libipw;
11657 }
11658
11659 pci_set_master(pdev);
11660
11661 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
11662 if (!err)
11663 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
11664 if (err) {
11665 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
11666 goto out_pci_disable_device;
11667 }
11668
11669 pci_set_drvdata(pdev, priv);
11670
11671 err = pci_request_regions(pdev, DRV_NAME);
11672 if (err)
11673 goto out_pci_disable_device;
11674
11675 /* We disable the RETRY_TIMEOUT register (0x41) to keep
11676 * PCI Tx retries from interfering with C3 CPU state */
11677 pci_read_config_dword(pdev, 0x40, &val);
11678 if ((val & 0x0000ff00) != 0)
11679 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11680
11681 length = pci_resource_len(pdev, 0);
11682 priv->hw_len = length;
11683
11684 base = pci_ioremap_bar(pdev, 0);
11685 if (!base) {
11686 err = -ENODEV;
11687 goto out_pci_release_regions;
11688 }
11689
11690 priv->hw_base = base;
11691 IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
11692 IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
11693
11694 err = ipw_setup_deferred_work(priv);
11695 if (err) {
11696 IPW_ERROR("Unable to setup deferred work\n");
11697 goto out_iounmap;
11698 }
11699
11700 ipw_sw_reset(priv, 1);
11701
11702 err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv);
11703 if (err) {
11704 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
11705 goto out_iounmap;
11706 }
11707
11708 SET_NETDEV_DEV(net_dev, &pdev->dev);
11709
11710 mutex_lock(&priv->mutex);
11711
11712 priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
11713 priv->ieee->set_security = shim__set_security;
11714 priv->ieee->is_queue_full = ipw_net_is_queue_full;
11715
11716 #ifdef CONFIG_IPW2200_QOS
11717 priv->ieee->is_qos_active = ipw_is_qos_active;
11718 priv->ieee->handle_probe_response = ipw_handle_beacon;
11719 priv->ieee->handle_beacon = ipw_handle_probe_response;
11720 priv->ieee->handle_assoc_response = ipw_handle_assoc_response;
11721 #endif /* CONFIG_IPW2200_QOS */
11722
11723 priv->ieee->perfect_rssi = -20;
11724 priv->ieee->worst_rssi = -85;
11725
11726 net_dev->netdev_ops = &ipw_netdev_ops;
11727 priv->wireless_data.spy_data = &priv->ieee->spy_data;
11728 net_dev->wireless_data = &priv->wireless_data;
11729 net_dev->wireless_handlers = &ipw_wx_handler_def;
11730 net_dev->ethtool_ops = &ipw_ethtool_ops;
11731
11732 err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
11733 if (err) {
11734 IPW_ERROR("failed to create sysfs device attributes\n");
11735 mutex_unlock(&priv->mutex);
11736 goto out_release_irq;
11737 }
11738
11739 if (ipw_up(priv)) {
11740 mutex_unlock(&priv->mutex);
11741 err = -EIO;
11742 goto out_remove_sysfs;
11743 }
11744
11745 mutex_unlock(&priv->mutex);
11746
11747 err = ipw_wdev_init(net_dev);
11748 if (err) {
11749 IPW_ERROR("failed to register wireless device\n");
11750 goto out_remove_sysfs;
11751 }
11752
11753 err = register_netdev(net_dev);
11754 if (err) {
11755 IPW_ERROR("failed to register network device\n");
11756 goto out_unregister_wiphy;
11757 }
11758
11759 #ifdef CONFIG_IPW2200_PROMISCUOUS
11760 if (rtap_iface) {
11761 err = ipw_prom_alloc(priv);
11762 if (err) {
11763 IPW_ERROR("Failed to register promiscuous network "
11764 "device (error %d).\n", err);
11765 unregister_netdev(priv->net_dev);
11766 goto out_unregister_wiphy;
11767 }
11768 }
11769 #endif
11770
11771 printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg "
11772 "channels, %d 802.11a channels)\n",
11773 priv->ieee->geo.name, priv->ieee->geo.bg_channels,
11774 priv->ieee->geo.a_channels);
11775
11776 return 0;
11777
11778 out_unregister_wiphy:
11779 wiphy_unregister(priv->ieee->wdev.wiphy);
11780 kfree(priv->ieee->a_band.channels);
11781 kfree(priv->ieee->bg_band.channels);
11782 out_remove_sysfs:
11783 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11784 out_release_irq:
11785 free_irq(pdev->irq, priv);
11786 out_iounmap:
11787 iounmap(priv->hw_base);
11788 out_pci_release_regions:
11789 pci_release_regions(pdev);
11790 out_pci_disable_device:
11791 pci_disable_device(pdev);
11792 out_free_libipw:
11793 free_libipw(priv->net_dev, 0);
11794 out:
11795 return err;
11796 }
11797
11798 static void ipw_pci_remove(struct pci_dev *pdev)
11799 {
11800 struct ipw_priv *priv = pci_get_drvdata(pdev);
11801 struct list_head *p, *q;
11802 int i;
11803
11804 if (!priv)
11805 return;
11806
11807 mutex_lock(&priv->mutex);
11808
11809 priv->status |= STATUS_EXIT_PENDING;
11810 ipw_down(priv);
11811 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11812
11813 mutex_unlock(&priv->mutex);
11814
11815 unregister_netdev(priv->net_dev);
11816
11817 if (priv->rxq) {
11818 ipw_rx_queue_free(priv, priv->rxq);
11819 priv->rxq = NULL;
11820 }
11821 ipw_tx_queue_free(priv);
11822
11823 if (priv->cmdlog) {
11824 kfree(priv->cmdlog);
11825 priv->cmdlog = NULL;
11826 }
11827
11828 /* make sure all works are inactive */
11829 cancel_delayed_work_sync(&priv->adhoc_check);
11830 cancel_work_sync(&priv->associate);
11831 cancel_work_sync(&priv->disassociate);
11832 cancel_work_sync(&priv->system_config);
11833 cancel_work_sync(&priv->rx_replenish);
11834 cancel_work_sync(&priv->adapter_restart);
11835 cancel_delayed_work_sync(&priv->rf_kill);
11836 cancel_work_sync(&priv->up);
11837 cancel_work_sync(&priv->down);
11838 cancel_delayed_work_sync(&priv->request_scan);
11839 cancel_delayed_work_sync(&priv->request_direct_scan);
11840 cancel_delayed_work_sync(&priv->request_passive_scan);
11841 cancel_delayed_work_sync(&priv->scan_event);
11842 cancel_delayed_work_sync(&priv->gather_stats);
11843 cancel_work_sync(&priv->abort_scan);
11844 cancel_work_sync(&priv->roam);
11845 cancel_delayed_work_sync(&priv->scan_check);
11846 cancel_work_sync(&priv->link_up);
11847 cancel_work_sync(&priv->link_down);
11848 cancel_delayed_work_sync(&priv->led_link_on);
11849 cancel_delayed_work_sync(&priv->led_link_off);
11850 cancel_delayed_work_sync(&priv->led_act_off);
11851 cancel_work_sync(&priv->merge_networks);
11852
11853 /* Free MAC hash list for ADHOC */
11854 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) {
11855 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
11856 list_del(p);
11857 kfree(list_entry(p, struct ipw_ibss_seq, list));
11858 }
11859 }
11860
11861 kfree(priv->error);
11862 priv->error = NULL;
11863
11864 #ifdef CONFIG_IPW2200_PROMISCUOUS
11865 ipw_prom_free(priv);
11866 #endif
11867
11868 free_irq(pdev->irq, priv);
11869 iounmap(priv->hw_base);
11870 pci_release_regions(pdev);
11871 pci_disable_device(pdev);
11872 /* wiphy_unregister needs to be here, before free_libipw */
11873 wiphy_unregister(priv->ieee->wdev.wiphy);
11874 kfree(priv->ieee->a_band.channels);
11875 kfree(priv->ieee->bg_band.channels);
11876 free_libipw(priv->net_dev, 0);
11877 free_firmware();
11878 }
11879
11880 #ifdef CONFIG_PM
11881 static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
11882 {
11883 struct ipw_priv *priv = pci_get_drvdata(pdev);
11884 struct net_device *dev = priv->net_dev;
11885
11886 printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
11887
11888 /* Take down the device; powers it off, etc. */
11889 ipw_down(priv);
11890
11891 /* Remove the PRESENT state of the device */
11892 netif_device_detach(dev);
11893
11894 pci_save_state(pdev);
11895 pci_disable_device(pdev);
11896 pci_set_power_state(pdev, pci_choose_state(pdev, state));
11897
11898 priv->suspend_at = get_seconds();
11899
11900 return 0;
11901 }
11902
11903 static int ipw_pci_resume(struct pci_dev *pdev)
11904 {
11905 struct ipw_priv *priv = pci_get_drvdata(pdev);
11906 struct net_device *dev = priv->net_dev;
11907 int err;
11908 u32 val;
11909
11910 printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
11911
11912 pci_set_power_state(pdev, PCI_D0);
11913 err = pci_enable_device(pdev);
11914 if (err) {
11915 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
11916 dev->name);
11917 return err;
11918 }
11919 pci_restore_state(pdev);
11920
11921 /*
11922 * Suspend/Resume resets the PCI configuration space, so we have to
11923 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
11924 * from interfering with C3 CPU state. pci_restore_state won't help
11925 * here since it only restores the first 64 bytes pci config header.
11926 */
11927 pci_read_config_dword(pdev, 0x40, &val);
11928 if ((val & 0x0000ff00) != 0)
11929 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11930
11931 /* Set the device back into the PRESENT state; this will also wake
11932 * the queue of needed */
11933 netif_device_attach(dev);
11934
11935 priv->suspend_time = get_seconds() - priv->suspend_at;
11936
11937 /* Bring the device back up */
11938 schedule_work(&priv->up);
11939
11940 return 0;
11941 }
11942 #endif
11943
11944 static void ipw_pci_shutdown(struct pci_dev *pdev)
11945 {
11946 struct ipw_priv *priv = pci_get_drvdata(pdev);
11947
11948 /* Take down the device; powers it off, etc. */
11949 ipw_down(priv);
11950
11951 pci_disable_device(pdev);
11952 }
11953
11954 /* driver initialization stuff */
11955 static struct pci_driver ipw_driver = {
11956 .name = DRV_NAME,
11957 .id_table = card_ids,
11958 .probe = ipw_pci_probe,
11959 .remove = ipw_pci_remove,
11960 #ifdef CONFIG_PM
11961 .suspend = ipw_pci_suspend,
11962 .resume = ipw_pci_resume,
11963 #endif
11964 .shutdown = ipw_pci_shutdown,
11965 };
11966
11967 static int __init ipw_init(void)
11968 {
11969 int ret;
11970
11971 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
11972 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
11973
11974 ret = pci_register_driver(&ipw_driver);
11975 if (ret) {
11976 IPW_ERROR("Unable to initialize PCI module\n");
11977 return ret;
11978 }
11979
11980 ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level);
11981 if (ret) {
11982 IPW_ERROR("Unable to create driver sysfs file\n");
11983 pci_unregister_driver(&ipw_driver);
11984 return ret;
11985 }
11986
11987 return ret;
11988 }
11989
11990 static void __exit ipw_exit(void)
11991 {
11992 driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
11993 pci_unregister_driver(&ipw_driver);
11994 }
11995
11996 module_param(disable, int, 0444);
11997 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
11998
11999 module_param(associate, int, 0444);
12000 MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
12001
12002 module_param(auto_create, int, 0444);
12003 MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
12004
12005 module_param_named(led, led_support, int, 0444);
12006 MODULE_PARM_DESC(led, "enable led control on some systems (default 1 on)");
12007
12008 module_param(debug, int, 0444);
12009 MODULE_PARM_DESC(debug, "debug output mask");
12010
12011 module_param_named(channel, default_channel, int, 0444);
12012 MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
12013
12014 #ifdef CONFIG_IPW2200_PROMISCUOUS
12015 module_param(rtap_iface, int, 0444);
12016 MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)");
12017 #endif
12018
12019 #ifdef CONFIG_IPW2200_QOS
12020 module_param(qos_enable, int, 0444);
12021 MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis");
12022
12023 module_param(qos_burst_enable, int, 0444);
12024 MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode");
12025
12026 module_param(qos_no_ack_mask, int, 0444);
12027 MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack");
12028
12029 module_param(burst_duration_CCK, int, 0444);
12030 MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value");
12031
12032 module_param(burst_duration_OFDM, int, 0444);
12033 MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value");
12034 #endif /* CONFIG_IPW2200_QOS */
12035
12036 #ifdef CONFIG_IPW2200_MONITOR
12037 module_param_named(mode, network_mode, int, 0444);
12038 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
12039 #else
12040 module_param_named(mode, network_mode, int, 0444);
12041 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
12042 #endif
12043
12044 module_param(bt_coexist, int, 0444);
12045 MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)");
12046
12047 module_param(hwcrypto, int, 0444);
12048 MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)");
12049
12050 module_param(cmdlog, int, 0444);
12051 MODULE_PARM_DESC(cmdlog,
12052 "allocate a ring buffer for logging firmware commands");
12053
12054 module_param(roaming, int, 0444);
12055 MODULE_PARM_DESC(roaming, "enable roaming support (default on)");
12056
12057 module_param(antenna, int, 0444);
12058 MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)");
12059
12060 module_exit(ipw_exit);
12061 module_init(ipw_init);
Linux with added FPC-III support