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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
32 | #include <linux/version.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/dma-mapping.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/skbuff.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/wireless.h> | |
40 | #include <linux/firmware.h> | |
b481de9c ZY |
41 | #include <linux/etherdevice.h> |
42 | #include <linux/if_arp.h> | |
43 | ||
44 | #include <net/ieee80211_radiotap.h> | |
45 | #include <net/mac80211.h> | |
46 | ||
47 | #include <asm/div64.h> | |
48 | ||
82b9a121 | 49 | #include "iwl-3945-core.h" |
b481de9c ZY |
50 | #include "iwl-3945.h" |
51 | #include "iwl-helpers.h" | |
52 | ||
c8b0e6e1 | 53 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 54 | u32 iwl3945_debug_level; |
b481de9c ZY |
55 | #endif |
56 | ||
bb8c093b CH |
57 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
58 | struct iwl3945_tx_queue *txq); | |
416e1438 | 59 | |
b481de9c ZY |
60 | /****************************************************************************** |
61 | * | |
62 | * module boiler plate | |
63 | * | |
64 | ******************************************************************************/ | |
65 | ||
66 | /* module parameters */ | |
6440adb5 BC |
67 | static int iwl3945_param_disable_hw_scan; /* def: 0 = use 3945's h/w scan */ |
68 | static int iwl3945_param_debug; /* def: 0 = minimal debug log messages */ | |
69 | static int iwl3945_param_disable; /* def: 0 = enable radio */ | |
9fbab516 | 70 | static int iwl3945_param_antenna; /* def: 0 = both antennas (use diversity) */ |
6440adb5 BC |
71 | int iwl3945_param_hwcrypto; /* def: 0 = use software encryption */ |
72 | static int iwl3945_param_qos_enable = 1; /* def: 1 = use quality of service */ | |
dfe7d458 | 73 | int iwl3945_param_queues_num = IWL39_MAX_NUM_QUEUES; /* def: 8 Tx queues */ |
b481de9c ZY |
74 | |
75 | /* | |
76 | * module name, copyright, version, etc. | |
77 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
78 | */ | |
79 | ||
80 | #define DRV_DESCRIPTION \ | |
81 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
82 | ||
c8b0e6e1 | 83 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
84 | #define VD "d" |
85 | #else | |
86 | #define VD | |
87 | #endif | |
88 | ||
c8b0e6e1 | 89 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
90 | #define VS "s" |
91 | #else | |
92 | #define VS | |
93 | #endif | |
94 | ||
b9e0b449 | 95 | #define IWLWIFI_VERSION "1.2.26k" VD VS |
eb7ae89c | 96 | #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation" |
b481de9c ZY |
97 | #define DRV_VERSION IWLWIFI_VERSION |
98 | ||
b481de9c ZY |
99 | |
100 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
101 | MODULE_VERSION(DRV_VERSION); | |
102 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
103 | MODULE_LICENSE("GPL"); | |
104 | ||
8318d78a JB |
105 | static const struct ieee80211_supported_band *iwl3945_get_band( |
106 | struct iwl3945_priv *priv, enum ieee80211_band band) | |
b481de9c | 107 | { |
8318d78a | 108 | return priv->hw->wiphy->bands[band]; |
b481de9c ZY |
109 | } |
110 | ||
bb8c093b | 111 | static int iwl3945_is_empty_essid(const char *essid, int essid_len) |
b481de9c ZY |
112 | { |
113 | /* Single white space is for Linksys APs */ | |
114 | if (essid_len == 1 && essid[0] == ' ') | |
115 | return 1; | |
116 | ||
117 | /* Otherwise, if the entire essid is 0, we assume it is hidden */ | |
118 | while (essid_len) { | |
119 | essid_len--; | |
120 | if (essid[essid_len] != '\0') | |
121 | return 0; | |
122 | } | |
123 | ||
124 | return 1; | |
125 | } | |
126 | ||
bb8c093b | 127 | static const char *iwl3945_escape_essid(const char *essid, u8 essid_len) |
b481de9c ZY |
128 | { |
129 | static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; | |
130 | const char *s = essid; | |
131 | char *d = escaped; | |
132 | ||
bb8c093b | 133 | if (iwl3945_is_empty_essid(essid, essid_len)) { |
b481de9c ZY |
134 | memcpy(escaped, "<hidden>", sizeof("<hidden>")); |
135 | return escaped; | |
136 | } | |
137 | ||
138 | essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); | |
139 | while (essid_len--) { | |
140 | if (*s == '\0') { | |
141 | *d++ = '\\'; | |
142 | *d++ = '0'; | |
143 | s++; | |
144 | } else | |
145 | *d++ = *s++; | |
146 | } | |
147 | *d = '\0'; | |
148 | return escaped; | |
149 | } | |
150 | ||
b481de9c ZY |
151 | /*************** DMA-QUEUE-GENERAL-FUNCTIONS ***** |
152 | * DMA services | |
153 | * | |
154 | * Theory of operation | |
155 | * | |
6440adb5 BC |
156 | * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer |
157 | * of buffer descriptors, each of which points to one or more data buffers for | |
158 | * the device to read from or fill. Driver and device exchange status of each | |
159 | * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty | |
160 | * entries in each circular buffer, to protect against confusing empty and full | |
161 | * queue states. | |
162 | * | |
163 | * The device reads or writes the data in the queues via the device's several | |
164 | * DMA/FIFO channels. Each queue is mapped to a single DMA channel. | |
b481de9c ZY |
165 | * |
166 | * For Tx queue, there are low mark and high mark limits. If, after queuing | |
167 | * the packet for Tx, free space become < low mark, Tx queue stopped. When | |
168 | * reclaiming packets (on 'tx done IRQ), if free space become > high mark, | |
169 | * Tx queue resumed. | |
170 | * | |
6440adb5 BC |
171 | * The 3945 operates with six queues: One receive queue, one transmit queue |
172 | * (#4) for sending commands to the device firmware, and four transmit queues | |
173 | * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused. | |
b481de9c ZY |
174 | ***************************************************/ |
175 | ||
c54b679d | 176 | int iwl3945_queue_space(const struct iwl3945_queue *q) |
b481de9c | 177 | { |
fc4b6853 | 178 | int s = q->read_ptr - q->write_ptr; |
b481de9c | 179 | |
fc4b6853 | 180 | if (q->read_ptr > q->write_ptr) |
b481de9c ZY |
181 | s -= q->n_bd; |
182 | ||
183 | if (s <= 0) | |
184 | s += q->n_window; | |
185 | /* keep some reserve to not confuse empty and full situations */ | |
186 | s -= 2; | |
187 | if (s < 0) | |
188 | s = 0; | |
189 | return s; | |
190 | } | |
191 | ||
c54b679d | 192 | int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i) |
b481de9c | 193 | { |
fc4b6853 TW |
194 | return q->write_ptr > q->read_ptr ? |
195 | (i >= q->read_ptr && i < q->write_ptr) : | |
196 | !(i < q->read_ptr && i >= q->write_ptr); | |
b481de9c ZY |
197 | } |
198 | ||
c54b679d | 199 | |
bb8c093b | 200 | static inline u8 get_cmd_index(struct iwl3945_queue *q, u32 index, int is_huge) |
b481de9c | 201 | { |
6440adb5 | 202 | /* This is for scan command, the big buffer at end of command array */ |
b481de9c | 203 | if (is_huge) |
6440adb5 | 204 | return q->n_window; /* must be power of 2 */ |
b481de9c | 205 | |
6440adb5 | 206 | /* Otherwise, use normal size buffers */ |
b481de9c ZY |
207 | return index & (q->n_window - 1); |
208 | } | |
209 | ||
6440adb5 BC |
210 | /** |
211 | * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes | |
212 | */ | |
bb8c093b | 213 | static int iwl3945_queue_init(struct iwl3945_priv *priv, struct iwl3945_queue *q, |
b481de9c ZY |
214 | int count, int slots_num, u32 id) |
215 | { | |
216 | q->n_bd = count; | |
217 | q->n_window = slots_num; | |
218 | q->id = id; | |
219 | ||
c54b679d TW |
220 | /* count must be power-of-two size, otherwise iwl_queue_inc_wrap |
221 | * and iwl_queue_dec_wrap are broken. */ | |
b481de9c ZY |
222 | BUG_ON(!is_power_of_2(count)); |
223 | ||
224 | /* slots_num must be power-of-two size, otherwise | |
225 | * get_cmd_index is broken. */ | |
226 | BUG_ON(!is_power_of_2(slots_num)); | |
227 | ||
228 | q->low_mark = q->n_window / 4; | |
229 | if (q->low_mark < 4) | |
230 | q->low_mark = 4; | |
231 | ||
232 | q->high_mark = q->n_window / 8; | |
233 | if (q->high_mark < 2) | |
234 | q->high_mark = 2; | |
235 | ||
fc4b6853 | 236 | q->write_ptr = q->read_ptr = 0; |
b481de9c ZY |
237 | |
238 | return 0; | |
239 | } | |
240 | ||
6440adb5 BC |
241 | /** |
242 | * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue | |
243 | */ | |
bb8c093b CH |
244 | static int iwl3945_tx_queue_alloc(struct iwl3945_priv *priv, |
245 | struct iwl3945_tx_queue *txq, u32 id) | |
b481de9c ZY |
246 | { |
247 | struct pci_dev *dev = priv->pci_dev; | |
248 | ||
6440adb5 BC |
249 | /* Driver private data, only for Tx (not command) queues, |
250 | * not shared with device. */ | |
b481de9c ZY |
251 | if (id != IWL_CMD_QUEUE_NUM) { |
252 | txq->txb = kmalloc(sizeof(txq->txb[0]) * | |
253 | TFD_QUEUE_SIZE_MAX, GFP_KERNEL); | |
254 | if (!txq->txb) { | |
01ebd063 | 255 | IWL_ERROR("kmalloc for auxiliary BD " |
b481de9c ZY |
256 | "structures failed\n"); |
257 | goto error; | |
258 | } | |
259 | } else | |
260 | txq->txb = NULL; | |
261 | ||
6440adb5 BC |
262 | /* Circular buffer of transmit frame descriptors (TFDs), |
263 | * shared with device */ | |
b481de9c ZY |
264 | txq->bd = pci_alloc_consistent(dev, |
265 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX, | |
266 | &txq->q.dma_addr); | |
267 | ||
268 | if (!txq->bd) { | |
269 | IWL_ERROR("pci_alloc_consistent(%zd) failed\n", | |
270 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX); | |
271 | goto error; | |
272 | } | |
273 | txq->q.id = id; | |
274 | ||
275 | return 0; | |
276 | ||
277 | error: | |
278 | if (txq->txb) { | |
279 | kfree(txq->txb); | |
280 | txq->txb = NULL; | |
281 | } | |
282 | ||
283 | return -ENOMEM; | |
284 | } | |
285 | ||
6440adb5 BC |
286 | /** |
287 | * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue | |
288 | */ | |
bb8c093b CH |
289 | int iwl3945_tx_queue_init(struct iwl3945_priv *priv, |
290 | struct iwl3945_tx_queue *txq, int slots_num, u32 txq_id) | |
b481de9c ZY |
291 | { |
292 | struct pci_dev *dev = priv->pci_dev; | |
293 | int len; | |
294 | int rc = 0; | |
295 | ||
6440adb5 BC |
296 | /* |
297 | * Alloc buffer array for commands (Tx or other types of commands). | |
298 | * For the command queue (#4), allocate command space + one big | |
299 | * command for scan, since scan command is very huge; the system will | |
300 | * not have two scans at the same time, so only one is needed. | |
301 | * For data Tx queues (all other queues), no super-size command | |
302 | * space is needed. | |
303 | */ | |
bb8c093b | 304 | len = sizeof(struct iwl3945_cmd) * slots_num; |
b481de9c ZY |
305 | if (txq_id == IWL_CMD_QUEUE_NUM) |
306 | len += IWL_MAX_SCAN_SIZE; | |
307 | txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd); | |
308 | if (!txq->cmd) | |
309 | return -ENOMEM; | |
310 | ||
6440adb5 | 311 | /* Alloc driver data array and TFD circular buffer */ |
bb8c093b | 312 | rc = iwl3945_tx_queue_alloc(priv, txq, txq_id); |
b481de9c ZY |
313 | if (rc) { |
314 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); | |
315 | ||
316 | return -ENOMEM; | |
317 | } | |
318 | txq->need_update = 0; | |
319 | ||
320 | /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise | |
c54b679d | 321 | * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ |
b481de9c | 322 | BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); |
6440adb5 BC |
323 | |
324 | /* Initialize queue high/low-water, head/tail indexes */ | |
bb8c093b | 325 | iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); |
b481de9c | 326 | |
6440adb5 | 327 | /* Tell device where to find queue, enable DMA channel. */ |
bb8c093b | 328 | iwl3945_hw_tx_queue_init(priv, txq); |
b481de9c ZY |
329 | |
330 | return 0; | |
331 | } | |
332 | ||
333 | /** | |
bb8c093b | 334 | * iwl3945_tx_queue_free - Deallocate DMA queue. |
b481de9c ZY |
335 | * @txq: Transmit queue to deallocate. |
336 | * | |
337 | * Empty queue by removing and destroying all BD's. | |
6440adb5 BC |
338 | * Free all buffers. |
339 | * 0-fill, but do not free "txq" descriptor structure. | |
b481de9c | 340 | */ |
bb8c093b | 341 | void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq) |
b481de9c | 342 | { |
bb8c093b | 343 | struct iwl3945_queue *q = &txq->q; |
b481de9c ZY |
344 | struct pci_dev *dev = priv->pci_dev; |
345 | int len; | |
346 | ||
347 | if (q->n_bd == 0) | |
348 | return; | |
349 | ||
350 | /* first, empty all BD's */ | |
fc4b6853 | 351 | for (; q->write_ptr != q->read_ptr; |
c54b679d | 352 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) |
bb8c093b | 353 | iwl3945_hw_txq_free_tfd(priv, txq); |
b481de9c | 354 | |
bb8c093b | 355 | len = sizeof(struct iwl3945_cmd) * q->n_window; |
b481de9c ZY |
356 | if (q->id == IWL_CMD_QUEUE_NUM) |
357 | len += IWL_MAX_SCAN_SIZE; | |
358 | ||
6440adb5 | 359 | /* De-alloc array of command/tx buffers */ |
b481de9c ZY |
360 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); |
361 | ||
6440adb5 | 362 | /* De-alloc circular buffer of TFDs */ |
b481de9c | 363 | if (txq->q.n_bd) |
bb8c093b | 364 | pci_free_consistent(dev, sizeof(struct iwl3945_tfd_frame) * |
b481de9c ZY |
365 | txq->q.n_bd, txq->bd, txq->q.dma_addr); |
366 | ||
6440adb5 | 367 | /* De-alloc array of per-TFD driver data */ |
b481de9c ZY |
368 | if (txq->txb) { |
369 | kfree(txq->txb); | |
370 | txq->txb = NULL; | |
371 | } | |
372 | ||
6440adb5 | 373 | /* 0-fill queue descriptor structure */ |
b481de9c ZY |
374 | memset(txq, 0, sizeof(*txq)); |
375 | } | |
376 | ||
bb8c093b | 377 | const u8 iwl3945_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
b481de9c ZY |
378 | |
379 | /*************** STATION TABLE MANAGEMENT **** | |
9fbab516 | 380 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
381 | * the functionality provided here |
382 | */ | |
383 | ||
384 | /**************************************************************/ | |
01ebd063 | 385 | #if 0 /* temporary disable till we add real remove station */ |
6440adb5 BC |
386 | /** |
387 | * iwl3945_remove_station - Remove driver's knowledge of station. | |
388 | * | |
389 | * NOTE: This does not remove station from device's station table. | |
390 | */ | |
bb8c093b | 391 | static u8 iwl3945_remove_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap) |
b481de9c ZY |
392 | { |
393 | int index = IWL_INVALID_STATION; | |
394 | int i; | |
395 | unsigned long flags; | |
396 | ||
397 | spin_lock_irqsave(&priv->sta_lock, flags); | |
398 | ||
399 | if (is_ap) | |
400 | index = IWL_AP_ID; | |
401 | else if (is_broadcast_ether_addr(addr)) | |
402 | index = priv->hw_setting.bcast_sta_id; | |
403 | else | |
404 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) | |
405 | if (priv->stations[i].used && | |
406 | !compare_ether_addr(priv->stations[i].sta.sta.addr, | |
407 | addr)) { | |
408 | index = i; | |
409 | break; | |
410 | } | |
411 | ||
412 | if (unlikely(index == IWL_INVALID_STATION)) | |
413 | goto out; | |
414 | ||
415 | if (priv->stations[index].used) { | |
416 | priv->stations[index].used = 0; | |
417 | priv->num_stations--; | |
418 | } | |
419 | ||
420 | BUG_ON(priv->num_stations < 0); | |
421 | ||
422 | out: | |
423 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
424 | return 0; | |
425 | } | |
556f8db7 | 426 | #endif |
6440adb5 BC |
427 | |
428 | /** | |
429 | * iwl3945_clear_stations_table - Clear the driver's station table | |
430 | * | |
431 | * NOTE: This does not clear or otherwise alter the device's station table. | |
432 | */ | |
bb8c093b | 433 | static void iwl3945_clear_stations_table(struct iwl3945_priv *priv) |
b481de9c ZY |
434 | { |
435 | unsigned long flags; | |
436 | ||
437 | spin_lock_irqsave(&priv->sta_lock, flags); | |
438 | ||
439 | priv->num_stations = 0; | |
440 | memset(priv->stations, 0, sizeof(priv->stations)); | |
441 | ||
442 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
443 | } | |
444 | ||
6440adb5 BC |
445 | /** |
446 | * iwl3945_add_station - Add station to station tables in driver and device | |
447 | */ | |
bb8c093b | 448 | u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap, u8 flags) |
b481de9c ZY |
449 | { |
450 | int i; | |
451 | int index = IWL_INVALID_STATION; | |
bb8c093b | 452 | struct iwl3945_station_entry *station; |
b481de9c | 453 | unsigned long flags_spin; |
0795af57 | 454 | DECLARE_MAC_BUF(mac); |
c14c521e | 455 | u8 rate; |
b481de9c ZY |
456 | |
457 | spin_lock_irqsave(&priv->sta_lock, flags_spin); | |
458 | if (is_ap) | |
459 | index = IWL_AP_ID; | |
460 | else if (is_broadcast_ether_addr(addr)) | |
461 | index = priv->hw_setting.bcast_sta_id; | |
462 | else | |
463 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) { | |
464 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, | |
465 | addr)) { | |
466 | index = i; | |
467 | break; | |
468 | } | |
469 | ||
470 | if (!priv->stations[i].used && | |
471 | index == IWL_INVALID_STATION) | |
472 | index = i; | |
473 | } | |
474 | ||
01ebd063 | 475 | /* These two conditions has the same outcome but keep them separate |
b481de9c ZY |
476 | since they have different meaning */ |
477 | if (unlikely(index == IWL_INVALID_STATION)) { | |
478 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
479 | return index; | |
480 | } | |
481 | ||
482 | if (priv->stations[index].used && | |
483 | !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) { | |
484 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
485 | return index; | |
486 | } | |
487 | ||
0795af57 | 488 | IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr)); |
b481de9c ZY |
489 | station = &priv->stations[index]; |
490 | station->used = 1; | |
491 | priv->num_stations++; | |
492 | ||
6440adb5 | 493 | /* Set up the REPLY_ADD_STA command to send to device */ |
bb8c093b | 494 | memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd)); |
b481de9c ZY |
495 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
496 | station->sta.mode = 0; | |
497 | station->sta.sta.sta_id = index; | |
498 | station->sta.station_flags = 0; | |
499 | ||
8318d78a | 500 | if (priv->band == IEEE80211_BAND_5GHZ) |
69946333 TW |
501 | rate = IWL_RATE_6M_PLCP; |
502 | else | |
503 | rate = IWL_RATE_1M_PLCP; | |
c14c521e ZY |
504 | |
505 | /* Turn on both antennas for the station... */ | |
506 | station->sta.rate_n_flags = | |
bb8c093b | 507 | iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK); |
c14c521e ZY |
508 | station->current_rate.rate_n_flags = |
509 | le16_to_cpu(station->sta.rate_n_flags); | |
510 | ||
b481de9c | 511 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
6440adb5 BC |
512 | |
513 | /* Add station to device's station table */ | |
bb8c093b | 514 | iwl3945_send_add_station(priv, &station->sta, flags); |
b481de9c ZY |
515 | return index; |
516 | ||
517 | } | |
518 | ||
519 | /*************** DRIVER STATUS FUNCTIONS *****/ | |
520 | ||
bb8c093b | 521 | static inline int iwl3945_is_ready(struct iwl3945_priv *priv) |
b481de9c ZY |
522 | { |
523 | /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are | |
524 | * set but EXIT_PENDING is not */ | |
525 | return test_bit(STATUS_READY, &priv->status) && | |
526 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) && | |
527 | !test_bit(STATUS_EXIT_PENDING, &priv->status); | |
528 | } | |
529 | ||
bb8c093b | 530 | static inline int iwl3945_is_alive(struct iwl3945_priv *priv) |
b481de9c ZY |
531 | { |
532 | return test_bit(STATUS_ALIVE, &priv->status); | |
533 | } | |
534 | ||
bb8c093b | 535 | static inline int iwl3945_is_init(struct iwl3945_priv *priv) |
b481de9c ZY |
536 | { |
537 | return test_bit(STATUS_INIT, &priv->status); | |
538 | } | |
539 | ||
bb8c093b | 540 | static inline int iwl3945_is_rfkill(struct iwl3945_priv *priv) |
b481de9c ZY |
541 | { |
542 | return test_bit(STATUS_RF_KILL_HW, &priv->status) || | |
543 | test_bit(STATUS_RF_KILL_SW, &priv->status); | |
544 | } | |
545 | ||
bb8c093b | 546 | static inline int iwl3945_is_ready_rf(struct iwl3945_priv *priv) |
b481de9c ZY |
547 | { |
548 | ||
bb8c093b | 549 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
550 | return 0; |
551 | ||
bb8c093b | 552 | return iwl3945_is_ready(priv); |
b481de9c ZY |
553 | } |
554 | ||
555 | /*************** HOST COMMAND QUEUE FUNCTIONS *****/ | |
556 | ||
557 | #define IWL_CMD(x) case x : return #x | |
558 | ||
559 | static const char *get_cmd_string(u8 cmd) | |
560 | { | |
561 | switch (cmd) { | |
562 | IWL_CMD(REPLY_ALIVE); | |
563 | IWL_CMD(REPLY_ERROR); | |
564 | IWL_CMD(REPLY_RXON); | |
565 | IWL_CMD(REPLY_RXON_ASSOC); | |
566 | IWL_CMD(REPLY_QOS_PARAM); | |
567 | IWL_CMD(REPLY_RXON_TIMING); | |
568 | IWL_CMD(REPLY_ADD_STA); | |
569 | IWL_CMD(REPLY_REMOVE_STA); | |
570 | IWL_CMD(REPLY_REMOVE_ALL_STA); | |
571 | IWL_CMD(REPLY_3945_RX); | |
572 | IWL_CMD(REPLY_TX); | |
573 | IWL_CMD(REPLY_RATE_SCALE); | |
574 | IWL_CMD(REPLY_LEDS_CMD); | |
575 | IWL_CMD(REPLY_TX_LINK_QUALITY_CMD); | |
576 | IWL_CMD(RADAR_NOTIFICATION); | |
577 | IWL_CMD(REPLY_QUIET_CMD); | |
578 | IWL_CMD(REPLY_CHANNEL_SWITCH); | |
579 | IWL_CMD(CHANNEL_SWITCH_NOTIFICATION); | |
580 | IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD); | |
581 | IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION); | |
582 | IWL_CMD(POWER_TABLE_CMD); | |
583 | IWL_CMD(PM_SLEEP_NOTIFICATION); | |
584 | IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC); | |
585 | IWL_CMD(REPLY_SCAN_CMD); | |
586 | IWL_CMD(REPLY_SCAN_ABORT_CMD); | |
587 | IWL_CMD(SCAN_START_NOTIFICATION); | |
588 | IWL_CMD(SCAN_RESULTS_NOTIFICATION); | |
589 | IWL_CMD(SCAN_COMPLETE_NOTIFICATION); | |
590 | IWL_CMD(BEACON_NOTIFICATION); | |
591 | IWL_CMD(REPLY_TX_BEACON); | |
592 | IWL_CMD(WHO_IS_AWAKE_NOTIFICATION); | |
593 | IWL_CMD(QUIET_NOTIFICATION); | |
594 | IWL_CMD(REPLY_TX_PWR_TABLE_CMD); | |
595 | IWL_CMD(MEASURE_ABORT_NOTIFICATION); | |
596 | IWL_CMD(REPLY_BT_CONFIG); | |
597 | IWL_CMD(REPLY_STATISTICS_CMD); | |
598 | IWL_CMD(STATISTICS_NOTIFICATION); | |
599 | IWL_CMD(REPLY_CARD_STATE_CMD); | |
600 | IWL_CMD(CARD_STATE_NOTIFICATION); | |
601 | IWL_CMD(MISSED_BEACONS_NOTIFICATION); | |
602 | default: | |
603 | return "UNKNOWN"; | |
604 | ||
605 | } | |
606 | } | |
607 | ||
608 | #define HOST_COMPLETE_TIMEOUT (HZ / 2) | |
609 | ||
610 | /** | |
bb8c093b | 611 | * iwl3945_enqueue_hcmd - enqueue a uCode command |
b481de9c ZY |
612 | * @priv: device private data point |
613 | * @cmd: a point to the ucode command structure | |
614 | * | |
615 | * The function returns < 0 values to indicate the operation is | |
616 | * failed. On success, it turns the index (> 0) of command in the | |
617 | * command queue. | |
618 | */ | |
bb8c093b | 619 | static int iwl3945_enqueue_hcmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 620 | { |
bb8c093b CH |
621 | struct iwl3945_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; |
622 | struct iwl3945_queue *q = &txq->q; | |
623 | struct iwl3945_tfd_frame *tfd; | |
b481de9c | 624 | u32 *control_flags; |
bb8c093b | 625 | struct iwl3945_cmd *out_cmd; |
b481de9c ZY |
626 | u32 idx; |
627 | u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr)); | |
628 | dma_addr_t phys_addr; | |
629 | int pad; | |
630 | u16 count; | |
631 | int ret; | |
632 | unsigned long flags; | |
633 | ||
634 | /* If any of the command structures end up being larger than | |
635 | * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then | |
636 | * we will need to increase the size of the TFD entries */ | |
637 | BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) && | |
638 | !(cmd->meta.flags & CMD_SIZE_HUGE)); | |
639 | ||
c342a1b9 GG |
640 | |
641 | if (iwl3945_is_rfkill(priv)) { | |
642 | IWL_DEBUG_INFO("Not sending command - RF KILL"); | |
643 | return -EIO; | |
644 | } | |
645 | ||
bb8c093b | 646 | if (iwl3945_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) { |
b481de9c ZY |
647 | IWL_ERROR("No space for Tx\n"); |
648 | return -ENOSPC; | |
649 | } | |
650 | ||
651 | spin_lock_irqsave(&priv->hcmd_lock, flags); | |
652 | ||
fc4b6853 | 653 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
654 | memset(tfd, 0, sizeof(*tfd)); |
655 | ||
656 | control_flags = (u32 *) tfd; | |
657 | ||
fc4b6853 | 658 | idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE); |
b481de9c ZY |
659 | out_cmd = &txq->cmd[idx]; |
660 | ||
661 | out_cmd->hdr.cmd = cmd->id; | |
662 | memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta)); | |
663 | memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len); | |
664 | ||
665 | /* At this point, the out_cmd now has all of the incoming cmd | |
666 | * information */ | |
667 | ||
668 | out_cmd->hdr.flags = 0; | |
669 | out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) | | |
fc4b6853 | 670 | INDEX_TO_SEQ(q->write_ptr)); |
b481de9c ZY |
671 | if (out_cmd->meta.flags & CMD_SIZE_HUGE) |
672 | out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME); | |
673 | ||
674 | phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx + | |
bb8c093b CH |
675 | offsetof(struct iwl3945_cmd, hdr); |
676 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size); | |
b481de9c ZY |
677 | |
678 | pad = U32_PAD(cmd->len); | |
679 | count = TFD_CTL_COUNT_GET(*control_flags); | |
680 | *control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad); | |
681 | ||
682 | IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, " | |
683 | "%d bytes at %d[%d]:%d\n", | |
684 | get_cmd_string(out_cmd->hdr.cmd), | |
685 | out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence), | |
fc4b6853 | 686 | fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM); |
b481de9c ZY |
687 | |
688 | txq->need_update = 1; | |
6440adb5 BC |
689 | |
690 | /* Increment and update queue's write index */ | |
c54b679d | 691 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
bb8c093b | 692 | ret = iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
693 | |
694 | spin_unlock_irqrestore(&priv->hcmd_lock, flags); | |
695 | return ret ? ret : idx; | |
696 | } | |
697 | ||
bb8c093b | 698 | static int iwl3945_send_cmd_async(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
699 | { |
700 | int ret; | |
701 | ||
702 | BUG_ON(!(cmd->meta.flags & CMD_ASYNC)); | |
703 | ||
704 | /* An asynchronous command can not expect an SKB to be set. */ | |
705 | BUG_ON(cmd->meta.flags & CMD_WANT_SKB); | |
706 | ||
707 | /* An asynchronous command MUST have a callback. */ | |
708 | BUG_ON(!cmd->meta.u.callback); | |
709 | ||
710 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
711 | return -EBUSY; | |
712 | ||
bb8c093b | 713 | ret = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c | 714 | if (ret < 0) { |
bb8c093b | 715 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
716 | get_cmd_string(cmd->id), ret); |
717 | return ret; | |
718 | } | |
719 | return 0; | |
720 | } | |
721 | ||
bb8c093b | 722 | static int iwl3945_send_cmd_sync(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
723 | { |
724 | int cmd_idx; | |
725 | int ret; | |
b481de9c ZY |
726 | |
727 | BUG_ON(cmd->meta.flags & CMD_ASYNC); | |
728 | ||
729 | /* A synchronous command can not have a callback set. */ | |
730 | BUG_ON(cmd->meta.u.callback != NULL); | |
731 | ||
e5472978 | 732 | if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status)) { |
b481de9c ZY |
733 | IWL_ERROR("Error sending %s: Already sending a host command\n", |
734 | get_cmd_string(cmd->id)); | |
e5472978 TW |
735 | ret = -EBUSY; |
736 | goto out; | |
b481de9c ZY |
737 | } |
738 | ||
739 | set_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
740 | ||
741 | if (cmd->meta.flags & CMD_WANT_SKB) | |
742 | cmd->meta.source = &cmd->meta; | |
743 | ||
bb8c093b | 744 | cmd_idx = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c ZY |
745 | if (cmd_idx < 0) { |
746 | ret = cmd_idx; | |
bb8c093b | 747 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
748 | get_cmd_string(cmd->id), ret); |
749 | goto out; | |
750 | } | |
751 | ||
752 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
753 | !test_bit(STATUS_HCMD_ACTIVE, &priv->status), | |
754 | HOST_COMPLETE_TIMEOUT); | |
755 | if (!ret) { | |
756 | if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) { | |
757 | IWL_ERROR("Error sending %s: time out after %dms.\n", | |
758 | get_cmd_string(cmd->id), | |
759 | jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); | |
760 | ||
761 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
762 | ret = -ETIMEDOUT; | |
763 | goto cancel; | |
764 | } | |
765 | } | |
766 | ||
767 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
768 | IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n", | |
769 | get_cmd_string(cmd->id)); | |
770 | ret = -ECANCELED; | |
771 | goto fail; | |
772 | } | |
773 | if (test_bit(STATUS_FW_ERROR, &priv->status)) { | |
774 | IWL_DEBUG_INFO("Command %s failed: FW Error\n", | |
775 | get_cmd_string(cmd->id)); | |
776 | ret = -EIO; | |
777 | goto fail; | |
778 | } | |
779 | if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) { | |
780 | IWL_ERROR("Error: Response NULL in '%s'\n", | |
781 | get_cmd_string(cmd->id)); | |
782 | ret = -EIO; | |
783 | goto out; | |
784 | } | |
785 | ||
786 | ret = 0; | |
787 | goto out; | |
788 | ||
789 | cancel: | |
790 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
bb8c093b | 791 | struct iwl3945_cmd *qcmd; |
b481de9c ZY |
792 | |
793 | /* Cancel the CMD_WANT_SKB flag for the cmd in the | |
794 | * TX cmd queue. Otherwise in case the cmd comes | |
795 | * in later, it will possibly set an invalid | |
796 | * address (cmd->meta.source). */ | |
797 | qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx]; | |
798 | qcmd->meta.flags &= ~CMD_WANT_SKB; | |
799 | } | |
800 | fail: | |
801 | if (cmd->meta.u.skb) { | |
802 | dev_kfree_skb_any(cmd->meta.u.skb); | |
803 | cmd->meta.u.skb = NULL; | |
804 | } | |
805 | out: | |
e5472978 | 806 | clear_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status); |
b481de9c ZY |
807 | return ret; |
808 | } | |
809 | ||
bb8c093b | 810 | int iwl3945_send_cmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 811 | { |
b481de9c | 812 | if (cmd->meta.flags & CMD_ASYNC) |
bb8c093b | 813 | return iwl3945_send_cmd_async(priv, cmd); |
b481de9c | 814 | |
bb8c093b | 815 | return iwl3945_send_cmd_sync(priv, cmd); |
b481de9c ZY |
816 | } |
817 | ||
bb8c093b | 818 | int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len, const void *data) |
b481de9c | 819 | { |
bb8c093b | 820 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
821 | .id = id, |
822 | .len = len, | |
823 | .data = data, | |
824 | }; | |
825 | ||
bb8c093b | 826 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
827 | } |
828 | ||
bb8c093b | 829 | static int __must_check iwl3945_send_cmd_u32(struct iwl3945_priv *priv, u8 id, u32 val) |
b481de9c | 830 | { |
bb8c093b | 831 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
832 | .id = id, |
833 | .len = sizeof(val), | |
834 | .data = &val, | |
835 | }; | |
836 | ||
bb8c093b | 837 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
838 | } |
839 | ||
bb8c093b | 840 | int iwl3945_send_statistics_request(struct iwl3945_priv *priv) |
b481de9c | 841 | { |
bb8c093b | 842 | return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0); |
b481de9c ZY |
843 | } |
844 | ||
b481de9c | 845 | /** |
bb8c093b | 846 | * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON |
8318d78a JB |
847 | * @band: 2.4 or 5 GHz band |
848 | * @channel: Any channel valid for the requested band | |
b481de9c | 849 | |
8318d78a | 850 | * In addition to setting the staging RXON, priv->band is also set. |
b481de9c ZY |
851 | * |
852 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
8318d78a | 853 | * in the staging RXON flag structure based on the band |
b481de9c | 854 | */ |
8318d78a JB |
855 | static int iwl3945_set_rxon_channel(struct iwl3945_priv *priv, |
856 | enum ieee80211_band band, | |
857 | u16 channel) | |
b481de9c | 858 | { |
8318d78a | 859 | if (!iwl3945_get_channel_info(priv, band, channel)) { |
b481de9c | 860 | IWL_DEBUG_INFO("Could not set channel to %d [%d]\n", |
8318d78a | 861 | channel, band); |
b481de9c ZY |
862 | return -EINVAL; |
863 | } | |
864 | ||
865 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && | |
8318d78a | 866 | (priv->band == band)) |
b481de9c ZY |
867 | return 0; |
868 | ||
869 | priv->staging_rxon.channel = cpu_to_le16(channel); | |
8318d78a | 870 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
871 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; |
872 | else | |
873 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
874 | ||
8318d78a | 875 | priv->band = band; |
b481de9c | 876 | |
8318d78a | 877 | IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band); |
b481de9c ZY |
878 | |
879 | return 0; | |
880 | } | |
881 | ||
882 | /** | |
bb8c093b | 883 | * iwl3945_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
884 | * |
885 | * NOTE: This is really only useful during development and can eventually | |
886 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
887 | * making changes | |
888 | */ | |
bb8c093b | 889 | static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c ZY |
890 | { |
891 | int error = 0; | |
892 | int counter = 1; | |
893 | ||
894 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
895 | error |= le32_to_cpu(rxon->flags & | |
896 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
897 | RXON_FLG_RADAR_DETECT_MSK)); | |
898 | if (error) | |
899 | IWL_WARNING("check 24G fields %d | %d\n", | |
900 | counter++, error); | |
901 | } else { | |
902 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
903 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
904 | if (error) | |
905 | IWL_WARNING("check 52 fields %d | %d\n", | |
906 | counter++, error); | |
907 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
908 | if (error) | |
909 | IWL_WARNING("check 52 CCK %d | %d\n", | |
910 | counter++, error); | |
911 | } | |
912 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
913 | if (error) | |
914 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
915 | ||
916 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
917 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
918 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
919 | if (error) | |
920 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
921 | ||
922 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
923 | if (error) | |
924 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
925 | ||
926 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
927 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
928 | if (error) | |
929 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
930 | counter++, error); | |
931 | ||
932 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
933 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
934 | if (error) | |
935 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
936 | counter++, error); | |
937 | ||
938 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
939 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
940 | if (error) | |
941 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
942 | counter++, error); | |
943 | ||
944 | if ((rxon->flags & RXON_FLG_DIS_DIV_MSK)) | |
945 | error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK | | |
946 | RXON_FLG_ANT_A_MSK)) == 0); | |
947 | if (error) | |
948 | IWL_WARNING("check antenna %d %d\n", counter++, error); | |
949 | ||
950 | if (error) | |
951 | IWL_WARNING("Tuning to channel %d\n", | |
952 | le16_to_cpu(rxon->channel)); | |
953 | ||
954 | if (error) { | |
bb8c093b | 955 | IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
956 | return -1; |
957 | } | |
958 | return 0; | |
959 | } | |
960 | ||
961 | /** | |
9fbab516 | 962 | * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 963 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 964 | * |
9fbab516 BC |
965 | * If the RXON structure is changing enough to require a new tune, |
966 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
967 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 968 | */ |
bb8c093b | 969 | static int iwl3945_full_rxon_required(struct iwl3945_priv *priv) |
b481de9c ZY |
970 | { |
971 | ||
972 | /* These items are only settable from the full RXON command */ | |
5d1e2325 | 973 | if (!(iwl3945_is_associated(priv)) || |
b481de9c ZY |
974 | compare_ether_addr(priv->staging_rxon.bssid_addr, |
975 | priv->active_rxon.bssid_addr) || | |
976 | compare_ether_addr(priv->staging_rxon.node_addr, | |
977 | priv->active_rxon.node_addr) || | |
978 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
979 | priv->active_rxon.wlap_bssid_addr) || | |
980 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
981 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
982 | (priv->staging_rxon.air_propagation != | |
983 | priv->active_rxon.air_propagation) || | |
984 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
985 | return 1; | |
986 | ||
987 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
988 | * be updated with the RXON_ASSOC command -- however only some | |
989 | * flag transitions are allowed using RXON_ASSOC */ | |
990 | ||
991 | /* Check if we are not switching bands */ | |
992 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
993 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
994 | return 1; | |
995 | ||
996 | /* Check if we are switching association toggle */ | |
997 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
998 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
999 | return 1; | |
1000 | ||
1001 | return 0; | |
1002 | } | |
1003 | ||
bb8c093b | 1004 | static int iwl3945_send_rxon_assoc(struct iwl3945_priv *priv) |
b481de9c ZY |
1005 | { |
1006 | int rc = 0; | |
bb8c093b CH |
1007 | struct iwl3945_rx_packet *res = NULL; |
1008 | struct iwl3945_rxon_assoc_cmd rxon_assoc; | |
1009 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
1010 | .id = REPLY_RXON_ASSOC, |
1011 | .len = sizeof(rxon_assoc), | |
1012 | .meta.flags = CMD_WANT_SKB, | |
1013 | .data = &rxon_assoc, | |
1014 | }; | |
bb8c093b CH |
1015 | const struct iwl3945_rxon_cmd *rxon1 = &priv->staging_rxon; |
1016 | const struct iwl3945_rxon_cmd *rxon2 = &priv->active_rxon; | |
b481de9c ZY |
1017 | |
1018 | if ((rxon1->flags == rxon2->flags) && | |
1019 | (rxon1->filter_flags == rxon2->filter_flags) && | |
1020 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
1021 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
1022 | IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n"); | |
1023 | return 0; | |
1024 | } | |
1025 | ||
1026 | rxon_assoc.flags = priv->staging_rxon.flags; | |
1027 | rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; | |
1028 | rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; | |
1029 | rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; | |
1030 | rxon_assoc.reserved = 0; | |
1031 | ||
bb8c093b | 1032 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1033 | if (rc) |
1034 | return rc; | |
1035 | ||
bb8c093b | 1036 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1037 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1038 | IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n"); | |
1039 | rc = -EIO; | |
1040 | } | |
1041 | ||
1042 | priv->alloc_rxb_skb--; | |
1043 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1044 | ||
1045 | return rc; | |
1046 | } | |
1047 | ||
1048 | /** | |
bb8c093b | 1049 | * iwl3945_commit_rxon - commit staging_rxon to hardware |
b481de9c | 1050 | * |
01ebd063 | 1051 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
1052 | * the active_rxon structure is updated with the new data. This |
1053 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
1054 | * a HW tune is required based on the RXON structure changes. | |
1055 | */ | |
bb8c093b | 1056 | static int iwl3945_commit_rxon(struct iwl3945_priv *priv) |
b481de9c ZY |
1057 | { |
1058 | /* cast away the const for active_rxon in this function */ | |
bb8c093b | 1059 | struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
b481de9c | 1060 | int rc = 0; |
0795af57 | 1061 | DECLARE_MAC_BUF(mac); |
b481de9c | 1062 | |
bb8c093b | 1063 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
1064 | return -1; |
1065 | ||
1066 | /* always get timestamp with Rx frame */ | |
1067 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
1068 | ||
1069 | /* select antenna */ | |
1070 | priv->staging_rxon.flags &= | |
1071 | ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); | |
1072 | priv->staging_rxon.flags |= iwl3945_get_antenna_flags(priv); | |
1073 | ||
bb8c093b | 1074 | rc = iwl3945_check_rxon_cmd(&priv->staging_rxon); |
b481de9c ZY |
1075 | if (rc) { |
1076 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); | |
1077 | return -EINVAL; | |
1078 | } | |
1079 | ||
1080 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 1081 | * iwl3945_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 1082 | * and other flags for the current radio configuration. */ |
bb8c093b CH |
1083 | if (!iwl3945_full_rxon_required(priv)) { |
1084 | rc = iwl3945_send_rxon_assoc(priv); | |
b481de9c ZY |
1085 | if (rc) { |
1086 | IWL_ERROR("Error setting RXON_ASSOC " | |
1087 | "configuration (%d).\n", rc); | |
1088 | return rc; | |
1089 | } | |
1090 | ||
1091 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1092 | ||
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | /* If we are currently associated and the new config requires | |
1097 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
1098 | * we must clear the associated from the active configuration | |
1099 | * before we apply the new config */ | |
bb8c093b | 1100 | if (iwl3945_is_associated(priv) && |
b481de9c ZY |
1101 | (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) { |
1102 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); | |
1103 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1104 | ||
bb8c093b CH |
1105 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1106 | sizeof(struct iwl3945_rxon_cmd), | |
b481de9c ZY |
1107 | &priv->active_rxon); |
1108 | ||
1109 | /* If the mask clearing failed then we set | |
1110 | * active_rxon back to what it was previously */ | |
1111 | if (rc) { | |
1112 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
1113 | IWL_ERROR("Error clearing ASSOC_MSK on current " | |
1114 | "configuration (%d).\n", rc); | |
1115 | return rc; | |
1116 | } | |
b481de9c ZY |
1117 | } |
1118 | ||
1119 | IWL_DEBUG_INFO("Sending RXON\n" | |
1120 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
1121 | "* channel = %d\n" | |
0795af57 | 1122 | "* bssid = %s\n", |
b481de9c ZY |
1123 | ((priv->staging_rxon.filter_flags & |
1124 | RXON_FILTER_ASSOC_MSK) ? "" : "out"), | |
1125 | le16_to_cpu(priv->staging_rxon.channel), | |
0795af57 | 1126 | print_mac(mac, priv->staging_rxon.bssid_addr)); |
b481de9c ZY |
1127 | |
1128 | /* Apply the new configuration */ | |
bb8c093b CH |
1129 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1130 | sizeof(struct iwl3945_rxon_cmd), &priv->staging_rxon); | |
b481de9c ZY |
1131 | if (rc) { |
1132 | IWL_ERROR("Error setting new configuration (%d).\n", rc); | |
1133 | return rc; | |
1134 | } | |
1135 | ||
1136 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1137 | ||
bb8c093b | 1138 | iwl3945_clear_stations_table(priv); |
556f8db7 | 1139 | |
b481de9c ZY |
1140 | /* If we issue a new RXON command which required a tune then we must |
1141 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
bb8c093b | 1142 | rc = iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
1143 | if (rc) { |
1144 | IWL_ERROR("Error setting Tx power (%d).\n", rc); | |
1145 | return rc; | |
1146 | } | |
1147 | ||
1148 | /* Add the broadcast address so we can send broadcast frames */ | |
bb8c093b | 1149 | if (iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0) == |
b481de9c ZY |
1150 | IWL_INVALID_STATION) { |
1151 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); | |
1152 | return -EIO; | |
1153 | } | |
1154 | ||
1155 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
1156 | * add the IWL_AP_ID to the station rate table */ | |
bb8c093b | 1157 | if (iwl3945_is_associated(priv) && |
b481de9c | 1158 | (priv->iw_mode == IEEE80211_IF_TYPE_STA)) |
bb8c093b | 1159 | if (iwl3945_add_station(priv, priv->active_rxon.bssid_addr, 1, 0) |
b481de9c ZY |
1160 | == IWL_INVALID_STATION) { |
1161 | IWL_ERROR("Error adding AP address for transmit.\n"); | |
1162 | return -EIO; | |
1163 | } | |
1164 | ||
8318d78a | 1165 | /* Init the hardware's rate fallback order based on the band */ |
b481de9c ZY |
1166 | rc = iwl3945_init_hw_rate_table(priv); |
1167 | if (rc) { | |
1168 | IWL_ERROR("Error setting HW rate table: %02X\n", rc); | |
1169 | return -EIO; | |
1170 | } | |
1171 | ||
1172 | return 0; | |
1173 | } | |
1174 | ||
bb8c093b | 1175 | static int iwl3945_send_bt_config(struct iwl3945_priv *priv) |
b481de9c | 1176 | { |
bb8c093b | 1177 | struct iwl3945_bt_cmd bt_cmd = { |
b481de9c ZY |
1178 | .flags = 3, |
1179 | .lead_time = 0xAA, | |
1180 | .max_kill = 1, | |
1181 | .kill_ack_mask = 0, | |
1182 | .kill_cts_mask = 0, | |
1183 | }; | |
1184 | ||
bb8c093b CH |
1185 | return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
1186 | sizeof(struct iwl3945_bt_cmd), &bt_cmd); | |
b481de9c ZY |
1187 | } |
1188 | ||
bb8c093b | 1189 | static int iwl3945_send_scan_abort(struct iwl3945_priv *priv) |
b481de9c ZY |
1190 | { |
1191 | int rc = 0; | |
bb8c093b CH |
1192 | struct iwl3945_rx_packet *res; |
1193 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
1194 | .id = REPLY_SCAN_ABORT_CMD, |
1195 | .meta.flags = CMD_WANT_SKB, | |
1196 | }; | |
1197 | ||
1198 | /* If there isn't a scan actively going on in the hardware | |
1199 | * then we are in between scan bands and not actually | |
1200 | * actively scanning, so don't send the abort command */ | |
1201 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1202 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1203 | return 0; | |
1204 | } | |
1205 | ||
bb8c093b | 1206 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1207 | if (rc) { |
1208 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1209 | return rc; | |
1210 | } | |
1211 | ||
bb8c093b | 1212 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1213 | if (res->u.status != CAN_ABORT_STATUS) { |
1214 | /* The scan abort will return 1 for success or | |
1215 | * 2 for "failure". A failure condition can be | |
1216 | * due to simply not being in an active scan which | |
1217 | * can occur if we send the scan abort before we | |
1218 | * the microcode has notified us that a scan is | |
1219 | * completed. */ | |
1220 | IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); | |
1221 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1222 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
1223 | } | |
1224 | ||
1225 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1226 | ||
1227 | return rc; | |
1228 | } | |
1229 | ||
bb8c093b CH |
1230 | static int iwl3945_card_state_sync_callback(struct iwl3945_priv *priv, |
1231 | struct iwl3945_cmd *cmd, | |
b481de9c ZY |
1232 | struct sk_buff *skb) |
1233 | { | |
1234 | return 1; | |
1235 | } | |
1236 | ||
1237 | /* | |
1238 | * CARD_STATE_CMD | |
1239 | * | |
9fbab516 | 1240 | * Use: Sets the device's internal card state to enable, disable, or halt |
b481de9c ZY |
1241 | * |
1242 | * When in the 'enable' state the card operates as normal. | |
1243 | * When in the 'disable' state, the card enters into a low power mode. | |
1244 | * When in the 'halt' state, the card is shut down and must be fully | |
1245 | * restarted to come back on. | |
1246 | */ | |
bb8c093b | 1247 | static int iwl3945_send_card_state(struct iwl3945_priv *priv, u32 flags, u8 meta_flag) |
b481de9c | 1248 | { |
bb8c093b | 1249 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
1250 | .id = REPLY_CARD_STATE_CMD, |
1251 | .len = sizeof(u32), | |
1252 | .data = &flags, | |
1253 | .meta.flags = meta_flag, | |
1254 | }; | |
1255 | ||
1256 | if (meta_flag & CMD_ASYNC) | |
bb8c093b | 1257 | cmd.meta.u.callback = iwl3945_card_state_sync_callback; |
b481de9c | 1258 | |
bb8c093b | 1259 | return iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1260 | } |
1261 | ||
bb8c093b CH |
1262 | static int iwl3945_add_sta_sync_callback(struct iwl3945_priv *priv, |
1263 | struct iwl3945_cmd *cmd, struct sk_buff *skb) | |
b481de9c | 1264 | { |
bb8c093b | 1265 | struct iwl3945_rx_packet *res = NULL; |
b481de9c ZY |
1266 | |
1267 | if (!skb) { | |
1268 | IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n"); | |
1269 | return 1; | |
1270 | } | |
1271 | ||
bb8c093b | 1272 | res = (struct iwl3945_rx_packet *)skb->data; |
b481de9c ZY |
1273 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1274 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1275 | res->hdr.flags); | |
1276 | return 1; | |
1277 | } | |
1278 | ||
1279 | switch (res->u.add_sta.status) { | |
1280 | case ADD_STA_SUCCESS_MSK: | |
1281 | break; | |
1282 | default: | |
1283 | break; | |
1284 | } | |
1285 | ||
1286 | /* We didn't cache the SKB; let the caller free it */ | |
1287 | return 1; | |
1288 | } | |
1289 | ||
bb8c093b CH |
1290 | int iwl3945_send_add_station(struct iwl3945_priv *priv, |
1291 | struct iwl3945_addsta_cmd *sta, u8 flags) | |
b481de9c | 1292 | { |
bb8c093b | 1293 | struct iwl3945_rx_packet *res = NULL; |
b481de9c | 1294 | int rc = 0; |
bb8c093b | 1295 | struct iwl3945_host_cmd cmd = { |
b481de9c | 1296 | .id = REPLY_ADD_STA, |
bb8c093b | 1297 | .len = sizeof(struct iwl3945_addsta_cmd), |
b481de9c ZY |
1298 | .meta.flags = flags, |
1299 | .data = sta, | |
1300 | }; | |
1301 | ||
1302 | if (flags & CMD_ASYNC) | |
bb8c093b | 1303 | cmd.meta.u.callback = iwl3945_add_sta_sync_callback; |
b481de9c ZY |
1304 | else |
1305 | cmd.meta.flags |= CMD_WANT_SKB; | |
1306 | ||
bb8c093b | 1307 | rc = iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1308 | |
1309 | if (rc || (flags & CMD_ASYNC)) | |
1310 | return rc; | |
1311 | ||
bb8c093b | 1312 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1313 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1314 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1315 | res->hdr.flags); | |
1316 | rc = -EIO; | |
1317 | } | |
1318 | ||
1319 | if (rc == 0) { | |
1320 | switch (res->u.add_sta.status) { | |
1321 | case ADD_STA_SUCCESS_MSK: | |
1322 | IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n"); | |
1323 | break; | |
1324 | default: | |
1325 | rc = -EIO; | |
1326 | IWL_WARNING("REPLY_ADD_STA failed\n"); | |
1327 | break; | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | priv->alloc_rxb_skb--; | |
1332 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1333 | ||
1334 | return rc; | |
1335 | } | |
1336 | ||
bb8c093b | 1337 | static int iwl3945_update_sta_key_info(struct iwl3945_priv *priv, |
b481de9c ZY |
1338 | struct ieee80211_key_conf *keyconf, |
1339 | u8 sta_id) | |
1340 | { | |
1341 | unsigned long flags; | |
1342 | __le16 key_flags = 0; | |
1343 | ||
1344 | switch (keyconf->alg) { | |
1345 | case ALG_CCMP: | |
1346 | key_flags |= STA_KEY_FLG_CCMP; | |
1347 | key_flags |= cpu_to_le16( | |
1348 | keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
1349 | key_flags &= ~STA_KEY_FLG_INVALID; | |
1350 | break; | |
1351 | case ALG_TKIP: | |
1352 | case ALG_WEP: | |
b481de9c ZY |
1353 | default: |
1354 | return -EINVAL; | |
1355 | } | |
1356 | spin_lock_irqsave(&priv->sta_lock, flags); | |
1357 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; | |
1358 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
1359 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, | |
1360 | keyconf->keylen); | |
1361 | ||
1362 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, | |
1363 | keyconf->keylen); | |
1364 | priv->stations[sta_id].sta.key.key_flags = key_flags; | |
1365 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1366 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1367 | ||
1368 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1369 | ||
1370 | IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n"); | |
bb8c093b | 1371 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1372 | return 0; |
1373 | } | |
1374 | ||
bb8c093b | 1375 | static int iwl3945_clear_sta_key_info(struct iwl3945_priv *priv, u8 sta_id) |
b481de9c ZY |
1376 | { |
1377 | unsigned long flags; | |
1378 | ||
1379 | spin_lock_irqsave(&priv->sta_lock, flags); | |
bb8c093b CH |
1380 | memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key)); |
1381 | memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl3945_keyinfo)); | |
b481de9c ZY |
1382 | priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
1383 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1384 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1385 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1386 | ||
1387 | IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n"); | |
bb8c093b | 1388 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1389 | return 0; |
1390 | } | |
1391 | ||
bb8c093b | 1392 | static void iwl3945_clear_free_frames(struct iwl3945_priv *priv) |
b481de9c ZY |
1393 | { |
1394 | struct list_head *element; | |
1395 | ||
1396 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
1397 | priv->frames_count); | |
1398 | ||
1399 | while (!list_empty(&priv->free_frames)) { | |
1400 | element = priv->free_frames.next; | |
1401 | list_del(element); | |
bb8c093b | 1402 | kfree(list_entry(element, struct iwl3945_frame, list)); |
b481de9c ZY |
1403 | priv->frames_count--; |
1404 | } | |
1405 | ||
1406 | if (priv->frames_count) { | |
1407 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
1408 | priv->frames_count); | |
1409 | priv->frames_count = 0; | |
1410 | } | |
1411 | } | |
1412 | ||
bb8c093b | 1413 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl3945_priv *priv) |
b481de9c | 1414 | { |
bb8c093b | 1415 | struct iwl3945_frame *frame; |
b481de9c ZY |
1416 | struct list_head *element; |
1417 | if (list_empty(&priv->free_frames)) { | |
1418 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
1419 | if (!frame) { | |
1420 | IWL_ERROR("Could not allocate frame!\n"); | |
1421 | return NULL; | |
1422 | } | |
1423 | ||
1424 | priv->frames_count++; | |
1425 | return frame; | |
1426 | } | |
1427 | ||
1428 | element = priv->free_frames.next; | |
1429 | list_del(element); | |
bb8c093b | 1430 | return list_entry(element, struct iwl3945_frame, list); |
b481de9c ZY |
1431 | } |
1432 | ||
bb8c093b | 1433 | static void iwl3945_free_frame(struct iwl3945_priv *priv, struct iwl3945_frame *frame) |
b481de9c ZY |
1434 | { |
1435 | memset(frame, 0, sizeof(*frame)); | |
1436 | list_add(&frame->list, &priv->free_frames); | |
1437 | } | |
1438 | ||
bb8c093b | 1439 | unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv, |
b481de9c ZY |
1440 | struct ieee80211_hdr *hdr, |
1441 | const u8 *dest, int left) | |
1442 | { | |
1443 | ||
bb8c093b | 1444 | if (!iwl3945_is_associated(priv) || !priv->ibss_beacon || |
b481de9c ZY |
1445 | ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) && |
1446 | (priv->iw_mode != IEEE80211_IF_TYPE_AP))) | |
1447 | return 0; | |
1448 | ||
1449 | if (priv->ibss_beacon->len > left) | |
1450 | return 0; | |
1451 | ||
1452 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
1453 | ||
1454 | return priv->ibss_beacon->len; | |
1455 | } | |
1456 | ||
bb8c093b | 1457 | static u8 iwl3945_rate_get_lowest_plcp(int rate_mask) |
b481de9c ZY |
1458 | { |
1459 | u8 i; | |
1460 | ||
1461 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; | |
bb8c093b | 1462 | i = iwl3945_rates[i].next_ieee) { |
b481de9c | 1463 | if (rate_mask & (1 << i)) |
bb8c093b | 1464 | return iwl3945_rates[i].plcp; |
b481de9c ZY |
1465 | } |
1466 | ||
1467 | return IWL_RATE_INVALID; | |
1468 | } | |
1469 | ||
bb8c093b | 1470 | static int iwl3945_send_beacon_cmd(struct iwl3945_priv *priv) |
b481de9c | 1471 | { |
bb8c093b | 1472 | struct iwl3945_frame *frame; |
b481de9c ZY |
1473 | unsigned int frame_size; |
1474 | int rc; | |
1475 | u8 rate; | |
1476 | ||
bb8c093b | 1477 | frame = iwl3945_get_free_frame(priv); |
b481de9c ZY |
1478 | |
1479 | if (!frame) { | |
1480 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
1481 | "command.\n"); | |
1482 | return -ENOMEM; | |
1483 | } | |
1484 | ||
1485 | if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) { | |
bb8c093b | 1486 | rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic & |
b481de9c ZY |
1487 | 0xFF0); |
1488 | if (rate == IWL_INVALID_RATE) | |
1489 | rate = IWL_RATE_6M_PLCP; | |
1490 | } else { | |
bb8c093b | 1491 | rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic & 0xF); |
b481de9c ZY |
1492 | if (rate == IWL_INVALID_RATE) |
1493 | rate = IWL_RATE_1M_PLCP; | |
1494 | } | |
1495 | ||
bb8c093b | 1496 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 1497 | |
bb8c093b | 1498 | rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
1499 | &frame->u.cmd[0]); |
1500 | ||
bb8c093b | 1501 | iwl3945_free_frame(priv, frame); |
b481de9c ZY |
1502 | |
1503 | return rc; | |
1504 | } | |
1505 | ||
1506 | /****************************************************************************** | |
1507 | * | |
1508 | * EEPROM related functions | |
1509 | * | |
1510 | ******************************************************************************/ | |
1511 | ||
bb8c093b | 1512 | static void get_eeprom_mac(struct iwl3945_priv *priv, u8 *mac) |
b481de9c ZY |
1513 | { |
1514 | memcpy(mac, priv->eeprom.mac_address, 6); | |
1515 | } | |
1516 | ||
74a3a250 RC |
1517 | /* |
1518 | * Clear the OWNER_MSK, to establish driver (instead of uCode running on | |
1519 | * embedded controller) as EEPROM reader; each read is a series of pulses | |
1520 | * to/from the EEPROM chip, not a single event, so even reads could conflict | |
1521 | * if they weren't arbitrated by some ownership mechanism. Here, the driver | |
1522 | * simply claims ownership, which should be safe when this function is called | |
1523 | * (i.e. before loading uCode!). | |
1524 | */ | |
1525 | static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv) | |
1526 | { | |
1527 | _iwl3945_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); | |
1528 | return 0; | |
1529 | } | |
1530 | ||
b481de9c | 1531 | /** |
bb8c093b | 1532 | * iwl3945_eeprom_init - read EEPROM contents |
b481de9c | 1533 | * |
6440adb5 | 1534 | * Load the EEPROM contents from adapter into priv->eeprom |
b481de9c ZY |
1535 | * |
1536 | * NOTE: This routine uses the non-debug IO access functions. | |
1537 | */ | |
bb8c093b | 1538 | int iwl3945_eeprom_init(struct iwl3945_priv *priv) |
b481de9c | 1539 | { |
58ff6d4d | 1540 | u16 *e = (u16 *)&priv->eeprom; |
bb8c093b | 1541 | u32 gp = iwl3945_read32(priv, CSR_EEPROM_GP); |
b481de9c ZY |
1542 | u32 r; |
1543 | int sz = sizeof(priv->eeprom); | |
1544 | int rc; | |
1545 | int i; | |
1546 | u16 addr; | |
1547 | ||
1548 | /* The EEPROM structure has several padding buffers within it | |
1549 | * and when adding new EEPROM maps is subject to programmer errors | |
1550 | * which may be very difficult to identify without explicitly | |
1551 | * checking the resulting size of the eeprom map. */ | |
1552 | BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE); | |
1553 | ||
1554 | if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) { | |
1555 | IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp); | |
1556 | return -ENOENT; | |
1557 | } | |
1558 | ||
6440adb5 | 1559 | /* Make sure driver (instead of uCode) is allowed to read EEPROM */ |
bb8c093b | 1560 | rc = iwl3945_eeprom_acquire_semaphore(priv); |
b481de9c | 1561 | if (rc < 0) { |
91e17473 | 1562 | IWL_ERROR("Failed to acquire EEPROM semaphore.\n"); |
b481de9c ZY |
1563 | return -ENOENT; |
1564 | } | |
1565 | ||
1566 | /* eeprom is an array of 16bit values */ | |
1567 | for (addr = 0; addr < sz; addr += sizeof(u16)) { | |
bb8c093b CH |
1568 | _iwl3945_write32(priv, CSR_EEPROM_REG, addr << 1); |
1569 | _iwl3945_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD); | |
b481de9c ZY |
1570 | |
1571 | for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT; | |
1572 | i += IWL_EEPROM_ACCESS_DELAY) { | |
bb8c093b | 1573 | r = _iwl3945_read_direct32(priv, CSR_EEPROM_REG); |
b481de9c ZY |
1574 | if (r & CSR_EEPROM_REG_READ_VALID_MSK) |
1575 | break; | |
1576 | udelay(IWL_EEPROM_ACCESS_DELAY); | |
1577 | } | |
1578 | ||
1579 | if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) { | |
1580 | IWL_ERROR("Time out reading EEPROM[%d]", addr); | |
1581 | return -ETIMEDOUT; | |
1582 | } | |
58ff6d4d | 1583 | e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16)); |
b481de9c ZY |
1584 | } |
1585 | ||
1586 | return 0; | |
1587 | } | |
1588 | ||
bb8c093b | 1589 | static void iwl3945_unset_hw_setting(struct iwl3945_priv *priv) |
b481de9c ZY |
1590 | { |
1591 | if (priv->hw_setting.shared_virt) | |
1592 | pci_free_consistent(priv->pci_dev, | |
bb8c093b | 1593 | sizeof(struct iwl3945_shared), |
b481de9c ZY |
1594 | priv->hw_setting.shared_virt, |
1595 | priv->hw_setting.shared_phys); | |
1596 | } | |
1597 | ||
1598 | /** | |
bb8c093b | 1599 | * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
1600 | * |
1601 | * return : set the bit for each supported rate insert in ie | |
1602 | */ | |
bb8c093b | 1603 | static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 1604 | u16 basic_rate, int *left) |
b481de9c ZY |
1605 | { |
1606 | u16 ret_rates = 0, bit; | |
1607 | int i; | |
c7c46676 TW |
1608 | u8 *cnt = ie; |
1609 | u8 *rates = ie + 1; | |
b481de9c ZY |
1610 | |
1611 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
1612 | if (bit & supported_rate) { | |
1613 | ret_rates |= bit; | |
bb8c093b | 1614 | rates[*cnt] = iwl3945_rates[i].ieee | |
c7c46676 TW |
1615 | ((bit & basic_rate) ? 0x80 : 0x00); |
1616 | (*cnt)++; | |
1617 | (*left)--; | |
1618 | if ((*left <= 0) || | |
1619 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
1620 | break; |
1621 | } | |
1622 | } | |
1623 | ||
1624 | return ret_rates; | |
1625 | } | |
1626 | ||
1627 | /** | |
bb8c093b | 1628 | * iwl3945_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 1629 | */ |
bb8c093b | 1630 | static u16 iwl3945_fill_probe_req(struct iwl3945_priv *priv, |
b481de9c ZY |
1631 | struct ieee80211_mgmt *frame, |
1632 | int left, int is_direct) | |
1633 | { | |
1634 | int len = 0; | |
1635 | u8 *pos = NULL; | |
c7c46676 | 1636 | u16 active_rates, ret_rates, cck_rates; |
b481de9c ZY |
1637 | |
1638 | /* Make sure there is enough space for the probe request, | |
1639 | * two mandatory IEs and the data */ | |
1640 | left -= 24; | |
1641 | if (left < 0) | |
1642 | return 0; | |
1643 | len += 24; | |
1644 | ||
1645 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
bb8c093b | 1646 | memcpy(frame->da, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c | 1647 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
bb8c093b | 1648 | memcpy(frame->bssid, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c ZY |
1649 | frame->seq_ctrl = 0; |
1650 | ||
1651 | /* fill in our indirect SSID IE */ | |
1652 | /* ...next IE... */ | |
1653 | ||
1654 | left -= 2; | |
1655 | if (left < 0) | |
1656 | return 0; | |
1657 | len += 2; | |
1658 | pos = &(frame->u.probe_req.variable[0]); | |
1659 | *pos++ = WLAN_EID_SSID; | |
1660 | *pos++ = 0; | |
1661 | ||
1662 | /* fill in our direct SSID IE... */ | |
1663 | if (is_direct) { | |
1664 | /* ...next IE... */ | |
1665 | left -= 2 + priv->essid_len; | |
1666 | if (left < 0) | |
1667 | return 0; | |
1668 | /* ... fill it in... */ | |
1669 | *pos++ = WLAN_EID_SSID; | |
1670 | *pos++ = priv->essid_len; | |
1671 | memcpy(pos, priv->essid, priv->essid_len); | |
1672 | pos += priv->essid_len; | |
1673 | len += 2 + priv->essid_len; | |
1674 | } | |
1675 | ||
1676 | /* fill in supported rate */ | |
1677 | /* ...next IE... */ | |
1678 | left -= 2; | |
1679 | if (left < 0) | |
1680 | return 0; | |
c7c46676 | 1681 | |
b481de9c ZY |
1682 | /* ... fill it in... */ |
1683 | *pos++ = WLAN_EID_SUPP_RATES; | |
1684 | *pos = 0; | |
c7c46676 TW |
1685 | |
1686 | priv->active_rate = priv->rates_mask; | |
1687 | active_rates = priv->active_rate; | |
b481de9c ZY |
1688 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; |
1689 | ||
c7c46676 | 1690 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 1691 | ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates, |
c7c46676 TW |
1692 | priv->active_rate_basic, &left); |
1693 | active_rates &= ~ret_rates; | |
1694 | ||
bb8c093b | 1695 | ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 TW |
1696 | priv->active_rate_basic, &left); |
1697 | active_rates &= ~ret_rates; | |
1698 | ||
b481de9c ZY |
1699 | len += 2 + *pos; |
1700 | pos += (*pos) + 1; | |
c7c46676 | 1701 | if (active_rates == 0) |
b481de9c ZY |
1702 | goto fill_end; |
1703 | ||
1704 | /* fill in supported extended rate */ | |
1705 | /* ...next IE... */ | |
1706 | left -= 2; | |
1707 | if (left < 0) | |
1708 | return 0; | |
1709 | /* ... fill it in... */ | |
1710 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
1711 | *pos = 0; | |
bb8c093b | 1712 | iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 | 1713 | priv->active_rate_basic, &left); |
b481de9c ZY |
1714 | if (*pos > 0) |
1715 | len += 2 + *pos; | |
1716 | ||
1717 | fill_end: | |
1718 | return (u16)len; | |
1719 | } | |
1720 | ||
1721 | /* | |
1722 | * QoS support | |
1723 | */ | |
bb8c093b CH |
1724 | static int iwl3945_send_qos_params_command(struct iwl3945_priv *priv, |
1725 | struct iwl3945_qosparam_cmd *qos) | |
b481de9c ZY |
1726 | { |
1727 | ||
bb8c093b CH |
1728 | return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
1729 | sizeof(struct iwl3945_qosparam_cmd), qos); | |
b481de9c ZY |
1730 | } |
1731 | ||
bb8c093b | 1732 | static void iwl3945_reset_qos(struct iwl3945_priv *priv) |
b481de9c ZY |
1733 | { |
1734 | u16 cw_min = 15; | |
1735 | u16 cw_max = 1023; | |
1736 | u8 aifs = 2; | |
1737 | u8 is_legacy = 0; | |
1738 | unsigned long flags; | |
1739 | int i; | |
1740 | ||
1741 | spin_lock_irqsave(&priv->lock, flags); | |
1742 | priv->qos_data.qos_active = 0; | |
1743 | ||
1744 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) { | |
1745 | if (priv->qos_data.qos_enable) | |
1746 | priv->qos_data.qos_active = 1; | |
1747 | if (!(priv->active_rate & 0xfff0)) { | |
1748 | cw_min = 31; | |
1749 | is_legacy = 1; | |
1750 | } | |
1751 | } else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
1752 | if (priv->qos_data.qos_enable) | |
1753 | priv->qos_data.qos_active = 1; | |
1754 | } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) { | |
1755 | cw_min = 31; | |
1756 | is_legacy = 1; | |
1757 | } | |
1758 | ||
1759 | if (priv->qos_data.qos_active) | |
1760 | aifs = 3; | |
1761 | ||
1762 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); | |
1763 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); | |
1764 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; | |
1765 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; | |
1766 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; | |
1767 | ||
1768 | if (priv->qos_data.qos_active) { | |
1769 | i = 1; | |
1770 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); | |
1771 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); | |
1772 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; | |
1773 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1774 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1775 | ||
1776 | i = 2; | |
1777 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1778 | cpu_to_le16((cw_min + 1) / 2 - 1); | |
1779 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1780 | cpu_to_le16(cw_max); | |
1781 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1782 | if (is_legacy) | |
1783 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1784 | cpu_to_le16(6016); | |
1785 | else | |
1786 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1787 | cpu_to_le16(3008); | |
1788 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1789 | ||
1790 | i = 3; | |
1791 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1792 | cpu_to_le16((cw_min + 1) / 4 - 1); | |
1793 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1794 | cpu_to_le16((cw_max + 1) / 2 - 1); | |
1795 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1796 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1797 | if (is_legacy) | |
1798 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1799 | cpu_to_le16(3264); | |
1800 | else | |
1801 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1802 | cpu_to_le16(1504); | |
1803 | } else { | |
1804 | for (i = 1; i < 4; i++) { | |
1805 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1806 | cpu_to_le16(cw_min); | |
1807 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1808 | cpu_to_le16(cw_max); | |
1809 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; | |
1810 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1811 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1812 | } | |
1813 | } | |
1814 | IWL_DEBUG_QOS("set QoS to default \n"); | |
1815 | ||
1816 | spin_unlock_irqrestore(&priv->lock, flags); | |
1817 | } | |
1818 | ||
bb8c093b | 1819 | static void iwl3945_activate_qos(struct iwl3945_priv *priv, u8 force) |
b481de9c ZY |
1820 | { |
1821 | unsigned long flags; | |
1822 | ||
b481de9c ZY |
1823 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
1824 | return; | |
1825 | ||
1826 | if (!priv->qos_data.qos_enable) | |
1827 | return; | |
1828 | ||
1829 | spin_lock_irqsave(&priv->lock, flags); | |
1830 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
1831 | ||
1832 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
1833 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
1834 | priv->qos_data.def_qos_parm.qos_flags |= | |
1835 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
1836 | ||
1837 | if (priv->qos_data.qos_active) | |
1838 | priv->qos_data.def_qos_parm.qos_flags |= | |
1839 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
1840 | ||
1841 | spin_unlock_irqrestore(&priv->lock, flags); | |
1842 | ||
bb8c093b | 1843 | if (force || iwl3945_is_associated(priv)) { |
b481de9c ZY |
1844 | IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n", |
1845 | priv->qos_data.qos_active); | |
1846 | ||
bb8c093b | 1847 | iwl3945_send_qos_params_command(priv, |
b481de9c ZY |
1848 | &(priv->qos_data.def_qos_parm)); |
1849 | } | |
1850 | } | |
1851 | ||
b481de9c ZY |
1852 | /* |
1853 | * Power management (not Tx power!) functions | |
1854 | */ | |
1855 | #define MSEC_TO_USEC 1024 | |
1856 | ||
1857 | #define NOSLP __constant_cpu_to_le32(0) | |
1858 | #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK | |
1859 | #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC) | |
1860 | #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \ | |
1861 | __constant_cpu_to_le32(X1), \ | |
1862 | __constant_cpu_to_le32(X2), \ | |
1863 | __constant_cpu_to_le32(X3), \ | |
1864 | __constant_cpu_to_le32(X4)} | |
1865 | ||
1866 | ||
1867 | /* default power management (not Tx power) table values */ | |
1868 | /* for tim 0-10 */ | |
bb8c093b | 1869 | static struct iwl3945_power_vec_entry range_0[IWL_POWER_AC] = { |
b481de9c ZY |
1870 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1871 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0}, | |
1872 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0}, | |
1873 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0}, | |
1874 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1}, | |
1875 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1} | |
1876 | }; | |
1877 | ||
1878 | /* for tim > 10 */ | |
bb8c093b | 1879 | static struct iwl3945_power_vec_entry range_1[IWL_POWER_AC] = { |
b481de9c ZY |
1880 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1881 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), | |
1882 | SLP_VEC(1, 2, 3, 4, 0xFF)}, 0}, | |
1883 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), | |
1884 | SLP_VEC(2, 4, 6, 7, 0xFF)}, 0}, | |
1885 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), | |
1886 | SLP_VEC(2, 6, 9, 9, 0xFF)}, 0}, | |
1887 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0}, | |
1888 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), | |
1889 | SLP_VEC(4, 7, 10, 10, 0xFF)}, 0} | |
1890 | }; | |
1891 | ||
bb8c093b | 1892 | int iwl3945_power_init_handle(struct iwl3945_priv *priv) |
b481de9c ZY |
1893 | { |
1894 | int rc = 0, i; | |
bb8c093b CH |
1895 | struct iwl3945_power_mgr *pow_data; |
1896 | int size = sizeof(struct iwl3945_power_vec_entry) * IWL_POWER_AC; | |
b481de9c ZY |
1897 | u16 pci_pm; |
1898 | ||
1899 | IWL_DEBUG_POWER("Initialize power \n"); | |
1900 | ||
1901 | pow_data = &(priv->power_data); | |
1902 | ||
1903 | memset(pow_data, 0, sizeof(*pow_data)); | |
1904 | ||
1905 | pow_data->active_index = IWL_POWER_RANGE_0; | |
1906 | pow_data->dtim_val = 0xffff; | |
1907 | ||
1908 | memcpy(&pow_data->pwr_range_0[0], &range_0[0], size); | |
1909 | memcpy(&pow_data->pwr_range_1[0], &range_1[0], size); | |
1910 | ||
1911 | rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm); | |
1912 | if (rc != 0) | |
1913 | return 0; | |
1914 | else { | |
bb8c093b | 1915 | struct iwl3945_powertable_cmd *cmd; |
b481de9c ZY |
1916 | |
1917 | IWL_DEBUG_POWER("adjust power command flags\n"); | |
1918 | ||
1919 | for (i = 0; i < IWL_POWER_AC; i++) { | |
1920 | cmd = &pow_data->pwr_range_0[i].cmd; | |
1921 | ||
1922 | if (pci_pm & 0x1) | |
1923 | cmd->flags &= ~IWL_POWER_PCI_PM_MSK; | |
1924 | else | |
1925 | cmd->flags |= IWL_POWER_PCI_PM_MSK; | |
1926 | } | |
1927 | } | |
1928 | return rc; | |
1929 | } | |
1930 | ||
bb8c093b CH |
1931 | static int iwl3945_update_power_cmd(struct iwl3945_priv *priv, |
1932 | struct iwl3945_powertable_cmd *cmd, u32 mode) | |
b481de9c ZY |
1933 | { |
1934 | int rc = 0, i; | |
1935 | u8 skip; | |
1936 | u32 max_sleep = 0; | |
bb8c093b | 1937 | struct iwl3945_power_vec_entry *range; |
b481de9c | 1938 | u8 period = 0; |
bb8c093b | 1939 | struct iwl3945_power_mgr *pow_data; |
b481de9c ZY |
1940 | |
1941 | if (mode > IWL_POWER_INDEX_5) { | |
1942 | IWL_DEBUG_POWER("Error invalid power mode \n"); | |
1943 | return -1; | |
1944 | } | |
1945 | pow_data = &(priv->power_data); | |
1946 | ||
1947 | if (pow_data->active_index == IWL_POWER_RANGE_0) | |
1948 | range = &pow_data->pwr_range_0[0]; | |
1949 | else | |
1950 | range = &pow_data->pwr_range_1[1]; | |
1951 | ||
bb8c093b | 1952 | memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd)); |
b481de9c ZY |
1953 | |
1954 | #ifdef IWL_MAC80211_DISABLE | |
1955 | if (priv->assoc_network != NULL) { | |
1956 | unsigned long flags; | |
1957 | ||
1958 | period = priv->assoc_network->tim.tim_period; | |
1959 | } | |
1960 | #endif /*IWL_MAC80211_DISABLE */ | |
1961 | skip = range[mode].no_dtim; | |
1962 | ||
1963 | if (period == 0) { | |
1964 | period = 1; | |
1965 | skip = 0; | |
1966 | } | |
1967 | ||
1968 | if (skip == 0) { | |
1969 | max_sleep = period; | |
1970 | cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1971 | } else { | |
1972 | __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]; | |
1973 | max_sleep = (le32_to_cpu(slp_itrvl) / period) * period; | |
1974 | cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1975 | } | |
1976 | ||
1977 | for (i = 0; i < IWL_POWER_VEC_SIZE; i++) { | |
1978 | if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep) | |
1979 | cmd->sleep_interval[i] = cpu_to_le32(max_sleep); | |
1980 | } | |
1981 | ||
1982 | IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags); | |
1983 | IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout)); | |
1984 | IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout)); | |
1985 | IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n", | |
1986 | le32_to_cpu(cmd->sleep_interval[0]), | |
1987 | le32_to_cpu(cmd->sleep_interval[1]), | |
1988 | le32_to_cpu(cmd->sleep_interval[2]), | |
1989 | le32_to_cpu(cmd->sleep_interval[3]), | |
1990 | le32_to_cpu(cmd->sleep_interval[4])); | |
1991 | ||
1992 | return rc; | |
1993 | } | |
1994 | ||
bb8c093b | 1995 | static int iwl3945_send_power_mode(struct iwl3945_priv *priv, u32 mode) |
b481de9c | 1996 | { |
9a62f73b | 1997 | u32 uninitialized_var(final_mode); |
b481de9c | 1998 | int rc; |
bb8c093b | 1999 | struct iwl3945_powertable_cmd cmd; |
b481de9c ZY |
2000 | |
2001 | /* If on battery, set to 3, | |
01ebd063 | 2002 | * if plugged into AC power, set to CAM ("continuously aware mode"), |
b481de9c ZY |
2003 | * else user level */ |
2004 | switch (mode) { | |
2005 | case IWL_POWER_BATTERY: | |
2006 | final_mode = IWL_POWER_INDEX_3; | |
2007 | break; | |
2008 | case IWL_POWER_AC: | |
2009 | final_mode = IWL_POWER_MODE_CAM; | |
2010 | break; | |
2011 | default: | |
2012 | final_mode = mode; | |
2013 | break; | |
2014 | } | |
2015 | ||
bb8c093b | 2016 | iwl3945_update_power_cmd(priv, &cmd, final_mode); |
b481de9c | 2017 | |
bb8c093b | 2018 | rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd); |
b481de9c ZY |
2019 | |
2020 | if (final_mode == IWL_POWER_MODE_CAM) | |
2021 | clear_bit(STATUS_POWER_PMI, &priv->status); | |
2022 | else | |
2023 | set_bit(STATUS_POWER_PMI, &priv->status); | |
2024 | ||
2025 | return rc; | |
2026 | } | |
2027 | ||
bb8c093b | 2028 | int iwl3945_is_network_packet(struct iwl3945_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
2029 | { |
2030 | /* Filter incoming packets to determine if they are targeted toward | |
2031 | * this network, discarding packets coming from ourselves */ | |
2032 | switch (priv->iw_mode) { | |
2033 | case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */ | |
2034 | /* packets from our adapter are dropped (echo) */ | |
2035 | if (!compare_ether_addr(header->addr2, priv->mac_addr)) | |
2036 | return 0; | |
2037 | /* {broad,multi}cast packets to our IBSS go through */ | |
2038 | if (is_multicast_ether_addr(header->addr1)) | |
2039 | return !compare_ether_addr(header->addr3, priv->bssid); | |
2040 | /* packets to our adapter go through */ | |
2041 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
2042 | case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */ | |
2043 | /* packets from our adapter are dropped (echo) */ | |
2044 | if (!compare_ether_addr(header->addr3, priv->mac_addr)) | |
2045 | return 0; | |
2046 | /* {broad,multi}cast packets to our BSS go through */ | |
2047 | if (is_multicast_ether_addr(header->addr1)) | |
2048 | return !compare_ether_addr(header->addr2, priv->bssid); | |
2049 | /* packets to our adapter go through */ | |
2050 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
69dc5d9d TW |
2051 | default: |
2052 | return 1; | |
b481de9c ZY |
2053 | } |
2054 | ||
2055 | return 1; | |
2056 | } | |
2057 | ||
b481de9c | 2058 | /** |
bb8c093b | 2059 | * iwl3945_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
2060 | * |
2061 | * NOTE: priv->mutex is not required before calling this function | |
2062 | */ | |
bb8c093b | 2063 | static int iwl3945_scan_cancel(struct iwl3945_priv *priv) |
b481de9c ZY |
2064 | { |
2065 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
2066 | clear_bit(STATUS_SCANNING, &priv->status); | |
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
2071 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2072 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
2073 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
2074 | queue_work(priv->workqueue, &priv->abort_scan); | |
2075 | ||
2076 | } else | |
2077 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
2078 | ||
2079 | return test_bit(STATUS_SCANNING, &priv->status); | |
2080 | } | |
2081 | ||
2082 | return 0; | |
2083 | } | |
2084 | ||
2085 | /** | |
bb8c093b | 2086 | * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
2087 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
2088 | * | |
2089 | * NOTE: priv->mutex must be held before calling this function | |
2090 | */ | |
bb8c093b | 2091 | static int iwl3945_scan_cancel_timeout(struct iwl3945_priv *priv, unsigned long ms) |
b481de9c ZY |
2092 | { |
2093 | unsigned long now = jiffies; | |
2094 | int ret; | |
2095 | ||
bb8c093b | 2096 | ret = iwl3945_scan_cancel(priv); |
b481de9c ZY |
2097 | if (ret && ms) { |
2098 | mutex_unlock(&priv->mutex); | |
2099 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
2100 | test_bit(STATUS_SCANNING, &priv->status)) | |
2101 | msleep(1); | |
2102 | mutex_lock(&priv->mutex); | |
2103 | ||
2104 | return test_bit(STATUS_SCANNING, &priv->status); | |
2105 | } | |
2106 | ||
2107 | return ret; | |
2108 | } | |
2109 | ||
bb8c093b | 2110 | static void iwl3945_sequence_reset(struct iwl3945_priv *priv) |
b481de9c ZY |
2111 | { |
2112 | /* Reset ieee stats */ | |
2113 | ||
2114 | /* We don't reset the net_device_stats (ieee->stats) on | |
2115 | * re-association */ | |
2116 | ||
2117 | priv->last_seq_num = -1; | |
2118 | priv->last_frag_num = -1; | |
2119 | priv->last_packet_time = 0; | |
2120 | ||
bb8c093b | 2121 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
2122 | } |
2123 | ||
2124 | #define MAX_UCODE_BEACON_INTERVAL 1024 | |
2125 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
2126 | ||
bb8c093b | 2127 | static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
2128 | { |
2129 | u16 new_val = 0; | |
2130 | u16 beacon_factor = 0; | |
2131 | ||
2132 | beacon_factor = | |
2133 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
2134 | / MAX_UCODE_BEACON_INTERVAL; | |
2135 | new_val = beacon_val / beacon_factor; | |
2136 | ||
2137 | return cpu_to_le16(new_val); | |
2138 | } | |
2139 | ||
bb8c093b | 2140 | static void iwl3945_setup_rxon_timing(struct iwl3945_priv *priv) |
b481de9c ZY |
2141 | { |
2142 | u64 interval_tm_unit; | |
2143 | u64 tsf, result; | |
2144 | unsigned long flags; | |
2145 | struct ieee80211_conf *conf = NULL; | |
2146 | u16 beacon_int = 0; | |
2147 | ||
2148 | conf = ieee80211_get_hw_conf(priv->hw); | |
2149 | ||
2150 | spin_lock_irqsave(&priv->lock, flags); | |
2151 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1); | |
2152 | priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0); | |
2153 | ||
2154 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
2155 | ||
2156 | tsf = priv->timestamp1; | |
2157 | tsf = ((tsf << 32) | priv->timestamp0); | |
2158 | ||
2159 | beacon_int = priv->beacon_int; | |
2160 | spin_unlock_irqrestore(&priv->lock, flags); | |
2161 | ||
2162 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) { | |
2163 | if (beacon_int == 0) { | |
2164 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
2165 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
2166 | } else { | |
2167 | priv->rxon_timing.beacon_interval = | |
2168 | cpu_to_le16(beacon_int); | |
2169 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2170 | iwl3945_adjust_beacon_interval( |
b481de9c ZY |
2171 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
2172 | } | |
2173 | ||
2174 | priv->rxon_timing.atim_window = 0; | |
2175 | } else { | |
2176 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2177 | iwl3945_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
2178 | /* TODO: we need to get atim_window from upper stack |
2179 | * for now we set to 0 */ | |
2180 | priv->rxon_timing.atim_window = 0; | |
2181 | } | |
2182 | ||
2183 | interval_tm_unit = | |
2184 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
2185 | result = do_div(tsf, interval_tm_unit); | |
2186 | priv->rxon_timing.beacon_init_val = | |
2187 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
2188 | ||
2189 | IWL_DEBUG_ASSOC | |
2190 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
2191 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
2192 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
2193 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
2194 | } | |
2195 | ||
bb8c093b | 2196 | static int iwl3945_scan_initiate(struct iwl3945_priv *priv) |
b481de9c ZY |
2197 | { |
2198 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
2199 | IWL_ERROR("APs don't scan.\n"); | |
2200 | return 0; | |
2201 | } | |
2202 | ||
bb8c093b | 2203 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
2204 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
2205 | return -EIO; | |
2206 | } | |
2207 | ||
2208 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
2209 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
2210 | return -EAGAIN; | |
2211 | } | |
2212 | ||
2213 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2214 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
2215 | "Queuing.\n"); | |
2216 | return -EAGAIN; | |
2217 | } | |
2218 | ||
2219 | IWL_DEBUG_INFO("Starting scan...\n"); | |
66b5004d RR |
2220 | if (priv->cfg->sku & IWL_SKU_G) |
2221 | priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ); | |
2222 | if (priv->cfg->sku & IWL_SKU_A) | |
2223 | priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
2224 | set_bit(STATUS_SCANNING, &priv->status); |
2225 | priv->scan_start = jiffies; | |
2226 | priv->scan_pass_start = priv->scan_start; | |
2227 | ||
2228 | queue_work(priv->workqueue, &priv->request_scan); | |
2229 | ||
2230 | return 0; | |
2231 | } | |
2232 | ||
bb8c093b | 2233 | static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv *priv, int hw_decrypt) |
b481de9c | 2234 | { |
bb8c093b | 2235 | struct iwl3945_rxon_cmd *rxon = &priv->staging_rxon; |
b481de9c ZY |
2236 | |
2237 | if (hw_decrypt) | |
2238 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
2239 | else | |
2240 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
2241 | ||
2242 | return 0; | |
2243 | } | |
2244 | ||
8318d78a JB |
2245 | static void iwl3945_set_flags_for_phymode(struct iwl3945_priv *priv, |
2246 | enum ieee80211_band band) | |
b481de9c | 2247 | { |
8318d78a | 2248 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
2249 | priv->staging_rxon.flags &= |
2250 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
2251 | | RXON_FLG_CCK_MSK); | |
2252 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2253 | } else { | |
bb8c093b | 2254 | /* Copied from iwl3945_bg_post_associate() */ |
b481de9c ZY |
2255 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
2256 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2257 | else | |
2258 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2259 | ||
2260 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
2261 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2262 | ||
2263 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
2264 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
2265 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
2266 | } | |
2267 | } | |
2268 | ||
2269 | /* | |
01ebd063 | 2270 | * initialize rxon structure with default values from eeprom |
b481de9c | 2271 | */ |
bb8c093b | 2272 | static void iwl3945_connection_init_rx_config(struct iwl3945_priv *priv) |
b481de9c | 2273 | { |
bb8c093b | 2274 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
2275 | |
2276 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
2277 | ||
2278 | switch (priv->iw_mode) { | |
2279 | case IEEE80211_IF_TYPE_AP: | |
2280 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; | |
2281 | break; | |
2282 | ||
2283 | case IEEE80211_IF_TYPE_STA: | |
2284 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; | |
2285 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
2286 | break; | |
2287 | ||
2288 | case IEEE80211_IF_TYPE_IBSS: | |
2289 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; | |
2290 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
2291 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
2292 | RXON_FILTER_ACCEPT_GRP_MSK; | |
2293 | break; | |
2294 | ||
2295 | case IEEE80211_IF_TYPE_MNTR: | |
2296 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; | |
2297 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
2298 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
2299 | break; | |
69dc5d9d TW |
2300 | default: |
2301 | IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode); | |
2302 | break; | |
b481de9c ZY |
2303 | } |
2304 | ||
2305 | #if 0 | |
2306 | /* TODO: Figure out when short_preamble would be set and cache from | |
2307 | * that */ | |
2308 | if (!hw_to_local(priv->hw)->short_preamble) | |
2309 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2310 | else | |
2311 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2312 | #endif | |
2313 | ||
8318d78a | 2314 | ch_info = iwl3945_get_channel_info(priv, priv->band, |
25b3f57c | 2315 | le16_to_cpu(priv->active_rxon.channel)); |
b481de9c ZY |
2316 | |
2317 | if (!ch_info) | |
2318 | ch_info = &priv->channel_info[0]; | |
2319 | ||
2320 | /* | |
2321 | * in some case A channels are all non IBSS | |
2322 | * in this case force B/G channel | |
2323 | */ | |
2324 | if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && | |
2325 | !(is_channel_ibss(ch_info))) | |
2326 | ch_info = &priv->channel_info[0]; | |
2327 | ||
2328 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
2329 | if (is_channel_a_band(ch_info)) | |
8318d78a | 2330 | priv->band = IEEE80211_BAND_5GHZ; |
b481de9c | 2331 | else |
8318d78a | 2332 | priv->band = IEEE80211_BAND_2GHZ; |
b481de9c | 2333 | |
8318d78a | 2334 | iwl3945_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
2335 | |
2336 | priv->staging_rxon.ofdm_basic_rates = | |
2337 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2338 | priv->staging_rxon.cck_basic_rates = | |
2339 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2340 | } | |
2341 | ||
bb8c093b | 2342 | static int iwl3945_set_mode(struct iwl3945_priv *priv, int mode) |
b481de9c | 2343 | { |
b481de9c | 2344 | if (mode == IEEE80211_IF_TYPE_IBSS) { |
bb8c093b | 2345 | const struct iwl3945_channel_info *ch_info; |
b481de9c | 2346 | |
bb8c093b | 2347 | ch_info = iwl3945_get_channel_info(priv, |
8318d78a | 2348 | priv->band, |
b481de9c ZY |
2349 | le16_to_cpu(priv->staging_rxon.channel)); |
2350 | ||
2351 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
2352 | IWL_ERROR("channel %d not IBSS channel\n", | |
2353 | le16_to_cpu(priv->staging_rxon.channel)); | |
2354 | return -EINVAL; | |
2355 | } | |
2356 | } | |
2357 | ||
b481de9c ZY |
2358 | priv->iw_mode = mode; |
2359 | ||
bb8c093b | 2360 | iwl3945_connection_init_rx_config(priv); |
b481de9c ZY |
2361 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2362 | ||
bb8c093b | 2363 | iwl3945_clear_stations_table(priv); |
b481de9c | 2364 | |
fde3571f MA |
2365 | /* dont commit rxon if rf-kill is on*/ |
2366 | if (!iwl3945_is_ready_rf(priv)) | |
2367 | return -EAGAIN; | |
2368 | ||
2369 | cancel_delayed_work(&priv->scan_check); | |
2370 | if (iwl3945_scan_cancel_timeout(priv, 100)) { | |
2371 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
2372 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2373 | return -EAGAIN; | |
2374 | } | |
2375 | ||
bb8c093b | 2376 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
2377 | |
2378 | return 0; | |
2379 | } | |
2380 | ||
bb8c093b | 2381 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv *priv, |
e039fa4a | 2382 | struct ieee80211_tx_info *info, |
bb8c093b | 2383 | struct iwl3945_cmd *cmd, |
b481de9c ZY |
2384 | struct sk_buff *skb_frag, |
2385 | int last_frag) | |
2386 | { | |
1c014420 | 2387 | struct iwl3945_hw_key *keyinfo = |
e039fa4a | 2388 | &priv->stations[info->control.hw_key->hw_key_idx].keyinfo; |
b481de9c ZY |
2389 | |
2390 | switch (keyinfo->alg) { | |
2391 | case ALG_CCMP: | |
2392 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM; | |
2393 | memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen); | |
2394 | IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n"); | |
2395 | break; | |
2396 | ||
2397 | case ALG_TKIP: | |
2398 | #if 0 | |
2399 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP; | |
2400 | ||
2401 | if (last_frag) | |
2402 | memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8, | |
2403 | 8); | |
2404 | else | |
2405 | memset(cmd->cmd.tx.tkip_mic.byte, 0, 8); | |
2406 | #endif | |
2407 | break; | |
2408 | ||
2409 | case ALG_WEP: | |
2410 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP | | |
e039fa4a | 2411 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
b481de9c ZY |
2412 | |
2413 | if (keyinfo->keylen == 13) | |
2414 | cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128; | |
2415 | ||
2416 | memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen); | |
2417 | ||
2418 | IWL_DEBUG_TX("Configuring packet for WEP encryption " | |
e039fa4a | 2419 | "with key %d\n", info->control.hw_key->hw_key_idx); |
b481de9c ZY |
2420 | break; |
2421 | ||
b481de9c ZY |
2422 | default: |
2423 | printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg); | |
2424 | break; | |
2425 | } | |
2426 | } | |
2427 | ||
2428 | /* | |
2429 | * handle build REPLY_TX command notification. | |
2430 | */ | |
bb8c093b CH |
2431 | static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, |
2432 | struct iwl3945_cmd *cmd, | |
e039fa4a | 2433 | struct ieee80211_tx_info *info, |
b481de9c ZY |
2434 | struct ieee80211_hdr *hdr, |
2435 | int is_unicast, u8 std_id) | |
2436 | { | |
fd7c8a40 | 2437 | __le16 fc = hdr->frame_control; |
b481de9c ZY |
2438 | __le32 tx_flags = cmd->cmd.tx.tx_flags; |
2439 | ||
2440 | cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
e039fa4a | 2441 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
b481de9c | 2442 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
fd7c8a40 | 2443 | if (ieee80211_is_mgmt(fc)) |
b481de9c | 2444 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
fd7c8a40 | 2445 | if (ieee80211_is_probe_resp(fc) && |
b481de9c ZY |
2446 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
2447 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
2448 | } else { | |
2449 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
2450 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
2451 | } | |
2452 | ||
2453 | cmd->cmd.tx.sta_id = std_id; | |
8b7b1e05 | 2454 | if (ieee80211_has_morefrags(fc)) |
b481de9c ZY |
2455 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
2456 | ||
fd7c8a40 HH |
2457 | if (ieee80211_is_data_qos(fc)) { |
2458 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
54dbb525 | 2459 | cmd->cmd.tx.tid_tspec = qc[0] & 0xf; |
b481de9c | 2460 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2461 | } else { |
b481de9c | 2462 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2463 | } |
b481de9c | 2464 | |
e039fa4a | 2465 | if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { |
b481de9c ZY |
2466 | tx_flags |= TX_CMD_FLG_RTS_MSK; |
2467 | tx_flags &= ~TX_CMD_FLG_CTS_MSK; | |
e039fa4a | 2468 | } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { |
b481de9c ZY |
2469 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; |
2470 | tx_flags |= TX_CMD_FLG_CTS_MSK; | |
2471 | } | |
2472 | ||
2473 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
2474 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
2475 | ||
2476 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
fd7c8a40 HH |
2477 | if (ieee80211_is_mgmt(fc)) { |
2478 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
bc434dd2 | 2479 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 2480 | else |
bc434dd2 | 2481 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2); |
ab53d8af | 2482 | } else { |
b481de9c | 2483 | cmd->cmd.tx.timeout.pm_frame_timeout = 0; |
ab53d8af MA |
2484 | #ifdef CONFIG_IWL3945_LEDS |
2485 | priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len); | |
2486 | #endif | |
2487 | } | |
b481de9c ZY |
2488 | |
2489 | cmd->cmd.tx.driver_txop = 0; | |
2490 | cmd->cmd.tx.tx_flags = tx_flags; | |
2491 | cmd->cmd.tx.next_frame_len = 0; | |
2492 | } | |
2493 | ||
6440adb5 BC |
2494 | /** |
2495 | * iwl3945_get_sta_id - Find station's index within station table | |
2496 | */ | |
bb8c093b | 2497 | static int iwl3945_get_sta_id(struct iwl3945_priv *priv, struct ieee80211_hdr *hdr) |
b481de9c ZY |
2498 | { |
2499 | int sta_id; | |
2500 | u16 fc = le16_to_cpu(hdr->frame_control); | |
2501 | ||
6440adb5 | 2502 | /* If this frame is broadcast or management, use broadcast station id */ |
b481de9c ZY |
2503 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
2504 | is_multicast_ether_addr(hdr->addr1)) | |
2505 | return priv->hw_setting.bcast_sta_id; | |
2506 | ||
2507 | switch (priv->iw_mode) { | |
2508 | ||
6440adb5 BC |
2509 | /* If we are a client station in a BSS network, use the special |
2510 | * AP station entry (that's the only station we communicate with) */ | |
b481de9c ZY |
2511 | case IEEE80211_IF_TYPE_STA: |
2512 | return IWL_AP_ID; | |
2513 | ||
2514 | /* If we are an AP, then find the station, or use BCAST */ | |
2515 | case IEEE80211_IF_TYPE_AP: | |
bb8c093b | 2516 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2517 | if (sta_id != IWL_INVALID_STATION) |
2518 | return sta_id; | |
2519 | return priv->hw_setting.bcast_sta_id; | |
2520 | ||
6440adb5 BC |
2521 | /* If this frame is going out to an IBSS network, find the station, |
2522 | * or create a new station table entry */ | |
0795af57 JP |
2523 | case IEEE80211_IF_TYPE_IBSS: { |
2524 | DECLARE_MAC_BUF(mac); | |
2525 | ||
6440adb5 | 2526 | /* Create new station table entry */ |
bb8c093b | 2527 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2528 | if (sta_id != IWL_INVALID_STATION) |
2529 | return sta_id; | |
2530 | ||
bb8c093b | 2531 | sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC); |
b481de9c ZY |
2532 | |
2533 | if (sta_id != IWL_INVALID_STATION) | |
2534 | return sta_id; | |
2535 | ||
0795af57 | 2536 | IWL_DEBUG_DROP("Station %s not in station map. " |
b481de9c | 2537 | "Defaulting to broadcast...\n", |
0795af57 | 2538 | print_mac(mac, hdr->addr1)); |
bb8c093b | 2539 | iwl3945_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
b481de9c | 2540 | return priv->hw_setting.bcast_sta_id; |
0795af57 | 2541 | } |
914233d6 SG |
2542 | /* If we are in monitor mode, use BCAST. This is required for |
2543 | * packet injection. */ | |
2544 | case IEEE80211_IF_TYPE_MNTR: | |
2545 | return priv->hw_setting.bcast_sta_id; | |
2546 | ||
b481de9c | 2547 | default: |
01ebd063 | 2548 | IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode); |
b481de9c ZY |
2549 | return priv->hw_setting.bcast_sta_id; |
2550 | } | |
2551 | } | |
2552 | ||
2553 | /* | |
2554 | * start REPLY_TX command process | |
2555 | */ | |
e039fa4a | 2556 | static int iwl3945_tx_skb(struct iwl3945_priv *priv, struct sk_buff *skb) |
b481de9c ZY |
2557 | { |
2558 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
e039fa4a | 2559 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bb8c093b | 2560 | struct iwl3945_tfd_frame *tfd; |
b481de9c | 2561 | u32 *control_flags; |
e2530083 | 2562 | int txq_id = skb_get_queue_mapping(skb); |
bb8c093b CH |
2563 | struct iwl3945_tx_queue *txq = NULL; |
2564 | struct iwl3945_queue *q = NULL; | |
b481de9c ZY |
2565 | dma_addr_t phys_addr; |
2566 | dma_addr_t txcmd_phys; | |
bb8c093b | 2567 | struct iwl3945_cmd *out_cmd = NULL; |
54dbb525 TW |
2568 | u16 len, idx, len_org, hdr_len; |
2569 | u8 id; | |
2570 | u8 unicast; | |
b481de9c | 2571 | u8 sta_id; |
54dbb525 | 2572 | u8 tid = 0; |
b481de9c | 2573 | u16 seq_number = 0; |
fd7c8a40 | 2574 | __le16 fc; |
b481de9c | 2575 | u8 wait_write_ptr = 0; |
54dbb525 | 2576 | u8 *qc = NULL; |
b481de9c ZY |
2577 | unsigned long flags; |
2578 | int rc; | |
2579 | ||
2580 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2581 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
2582 | IWL_DEBUG_DROP("Dropping - RF KILL\n"); |
2583 | goto drop_unlock; | |
2584 | } | |
2585 | ||
e039fa4a | 2586 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
b481de9c ZY |
2587 | IWL_ERROR("ERROR: No TX rate available.\n"); |
2588 | goto drop_unlock; | |
2589 | } | |
2590 | ||
2591 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
2592 | id = 0; | |
2593 | ||
fd7c8a40 | 2594 | fc = hdr->frame_control; |
b481de9c | 2595 | |
c8b0e6e1 | 2596 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
2597 | if (ieee80211_is_auth(fc)) |
2598 | IWL_DEBUG_TX("Sending AUTH frame\n"); | |
fd7c8a40 | 2599 | else if (ieee80211_is_assoc_req(fc)) |
b481de9c | 2600 | IWL_DEBUG_TX("Sending ASSOC frame\n"); |
fd7c8a40 | 2601 | else if (ieee80211_is_reassoc_req(fc)) |
b481de9c ZY |
2602 | IWL_DEBUG_TX("Sending REASSOC frame\n"); |
2603 | #endif | |
2604 | ||
7878a5a4 | 2605 | /* drop all data frame if we are not associated */ |
914233d6 SG |
2606 | if (ieee80211_is_data(fc) && |
2607 | (priv->iw_mode != IEEE80211_IF_TYPE_MNTR) && /* packet injection */ | |
2608 | (!iwl3945_is_associated(priv) || | |
2609 | ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id))) { | |
bb8c093b | 2610 | IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n"); |
b481de9c ZY |
2611 | goto drop_unlock; |
2612 | } | |
2613 | ||
2614 | spin_unlock_irqrestore(&priv->lock, flags); | |
2615 | ||
fd7c8a40 | 2616 | hdr_len = ieee80211_get_hdrlen(le16_to_cpu(fc)); |
6440adb5 BC |
2617 | |
2618 | /* Find (or create) index into station table for destination station */ | |
bb8c093b | 2619 | sta_id = iwl3945_get_sta_id(priv, hdr); |
b481de9c | 2620 | if (sta_id == IWL_INVALID_STATION) { |
0795af57 JP |
2621 | DECLARE_MAC_BUF(mac); |
2622 | ||
2623 | IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n", | |
2624 | print_mac(mac, hdr->addr1)); | |
b481de9c ZY |
2625 | goto drop; |
2626 | } | |
2627 | ||
2628 | IWL_DEBUG_RATE("station Id %d\n", sta_id); | |
2629 | ||
fd7c8a40 HH |
2630 | if (ieee80211_is_data_qos(fc)) { |
2631 | qc = ieee80211_get_qos_ctl(hdr); | |
54dbb525 | 2632 | tid = qc[0] & 0xf; |
b481de9c ZY |
2633 | seq_number = priv->stations[sta_id].tid[tid].seq_number & |
2634 | IEEE80211_SCTL_SEQ; | |
2635 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
2636 | (hdr->seq_ctrl & | |
2637 | __constant_cpu_to_le16(IEEE80211_SCTL_FRAG)); | |
2638 | seq_number += 0x10; | |
2639 | } | |
6440adb5 BC |
2640 | |
2641 | /* Descriptor for chosen Tx queue */ | |
b481de9c ZY |
2642 | txq = &priv->txq[txq_id]; |
2643 | q = &txq->q; | |
2644 | ||
2645 | spin_lock_irqsave(&priv->lock, flags); | |
2646 | ||
6440adb5 | 2647 | /* Set up first empty TFD within this queue's circular TFD buffer */ |
fc4b6853 | 2648 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
2649 | memset(tfd, 0, sizeof(*tfd)); |
2650 | control_flags = (u32 *) tfd; | |
fc4b6853 | 2651 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 2652 | |
6440adb5 | 2653 | /* Set up driver data for this TFD */ |
bb8c093b | 2654 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl3945_tx_info)); |
fc4b6853 | 2655 | txq->txb[q->write_ptr].skb[0] = skb; |
6440adb5 BC |
2656 | |
2657 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
b481de9c ZY |
2658 | out_cmd = &txq->cmd[idx]; |
2659 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); | |
2660 | memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx)); | |
6440adb5 BC |
2661 | |
2662 | /* | |
2663 | * Set up the Tx-command (not MAC!) header. | |
2664 | * Store the chosen Tx queue and TFD index within the sequence field; | |
2665 | * after Tx, uCode's Tx response will return this value so driver can | |
2666 | * locate the frame within the tx queue and do post-tx processing. | |
2667 | */ | |
b481de9c ZY |
2668 | out_cmd->hdr.cmd = REPLY_TX; |
2669 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 2670 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 BC |
2671 | |
2672 | /* Copy MAC header from skb into command buffer */ | |
b481de9c ZY |
2673 | memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len); |
2674 | ||
6440adb5 BC |
2675 | /* |
2676 | * Use the first empty entry in this queue's command buffer array | |
2677 | * to contain the Tx command and MAC header concatenated together | |
2678 | * (payload data will be in another buffer). | |
2679 | * Size of this varies, due to varying MAC header length. | |
2680 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
2681 | * of the MAC header (device reads on dword boundaries). | |
2682 | * We'll tell device about this padding later. | |
2683 | */ | |
b481de9c | 2684 | len = priv->hw_setting.tx_cmd_len + |
bb8c093b | 2685 | sizeof(struct iwl3945_cmd_header) + hdr_len; |
b481de9c ZY |
2686 | |
2687 | len_org = len; | |
2688 | len = (len + 3) & ~3; | |
2689 | ||
2690 | if (len_org != len) | |
2691 | len_org = 1; | |
2692 | else | |
2693 | len_org = 0; | |
2694 | ||
6440adb5 BC |
2695 | /* Physical address of this Tx command's header (not MAC header!), |
2696 | * within command buffer array. */ | |
bb8c093b CH |
2697 | txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl3945_cmd) * idx + |
2698 | offsetof(struct iwl3945_cmd, hdr); | |
b481de9c | 2699 | |
6440adb5 BC |
2700 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
2701 | * first entry */ | |
bb8c093b | 2702 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len); |
b481de9c | 2703 | |
e039fa4a JB |
2704 | if (!(info->flags & IEEE80211_TX_CTL_DO_NOT_ENCRYPT)) |
2705 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0); | |
b481de9c | 2706 | |
6440adb5 BC |
2707 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
2708 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
2709 | len = skb->len - hdr_len; |
2710 | if (len) { | |
2711 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
2712 | len, PCI_DMA_TODEVICE); | |
bb8c093b | 2713 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len); |
b481de9c ZY |
2714 | } |
2715 | ||
b481de9c | 2716 | if (!len) |
6440adb5 | 2717 | /* If there is no payload, then we use only one Tx buffer */ |
b481de9c ZY |
2718 | *control_flags = TFD_CTL_COUNT_SET(1); |
2719 | else | |
6440adb5 BC |
2720 | /* Else use 2 buffers. |
2721 | * Tell 3945 about any padding after MAC header */ | |
b481de9c ZY |
2722 | *control_flags = TFD_CTL_COUNT_SET(2) | |
2723 | TFD_CTL_PAD_SET(U32_PAD(len)); | |
2724 | ||
6440adb5 | 2725 | /* Total # bytes to be transmitted */ |
b481de9c ZY |
2726 | len = (u16)skb->len; |
2727 | out_cmd->cmd.tx.len = cpu_to_le16(len); | |
2728 | ||
2729 | /* TODO need this for burst mode later on */ | |
e039fa4a | 2730 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, unicast, sta_id); |
b481de9c ZY |
2731 | |
2732 | /* set is_hcca to 0; it probably will never be implemented */ | |
e039fa4a | 2733 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); |
b481de9c ZY |
2734 | |
2735 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; | |
2736 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
2737 | ||
8b7b1e05 | 2738 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
b481de9c ZY |
2739 | txq->need_update = 1; |
2740 | if (qc) { | |
b481de9c ZY |
2741 | priv->stations[sta_id].tid[tid].seq_number = seq_number; |
2742 | } | |
2743 | } else { | |
2744 | wait_write_ptr = 1; | |
2745 | txq->need_update = 0; | |
2746 | } | |
2747 | ||
bb8c093b | 2748 | iwl3945_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload, |
b481de9c ZY |
2749 | sizeof(out_cmd->cmd.tx)); |
2750 | ||
bb8c093b | 2751 | iwl3945_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr, |
fd7c8a40 | 2752 | ieee80211_get_hdrlen(le16_to_cpu(fc))); |
b481de9c | 2753 | |
6440adb5 | 2754 | /* Tell device the write index *just past* this latest filled TFD */ |
c54b679d | 2755 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
bb8c093b | 2756 | rc = iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2757 | spin_unlock_irqrestore(&priv->lock, flags); |
2758 | ||
2759 | if (rc) | |
2760 | return rc; | |
2761 | ||
bb8c093b | 2762 | if ((iwl3945_queue_space(q) < q->high_mark) |
b481de9c ZY |
2763 | && priv->mac80211_registered) { |
2764 | if (wait_write_ptr) { | |
2765 | spin_lock_irqsave(&priv->lock, flags); | |
2766 | txq->need_update = 1; | |
bb8c093b | 2767 | iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2768 | spin_unlock_irqrestore(&priv->lock, flags); |
2769 | } | |
2770 | ||
e2530083 | 2771 | ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb)); |
b481de9c ZY |
2772 | } |
2773 | ||
2774 | return 0; | |
2775 | ||
2776 | drop_unlock: | |
2777 | spin_unlock_irqrestore(&priv->lock, flags); | |
2778 | drop: | |
2779 | return -1; | |
2780 | } | |
2781 | ||
bb8c093b | 2782 | static void iwl3945_set_rate(struct iwl3945_priv *priv) |
b481de9c | 2783 | { |
8318d78a | 2784 | const struct ieee80211_supported_band *sband = NULL; |
b481de9c ZY |
2785 | struct ieee80211_rate *rate; |
2786 | int i; | |
2787 | ||
8318d78a JB |
2788 | sband = iwl3945_get_band(priv, priv->band); |
2789 | if (!sband) { | |
c4ba9621 SA |
2790 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); |
2791 | return; | |
2792 | } | |
b481de9c ZY |
2793 | |
2794 | priv->active_rate = 0; | |
2795 | priv->active_rate_basic = 0; | |
2796 | ||
8318d78a JB |
2797 | IWL_DEBUG_RATE("Setting rates for %s GHz\n", |
2798 | sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5"); | |
2799 | ||
2800 | for (i = 0; i < sband->n_bitrates; i++) { | |
2801 | rate = &sband->bitrates[i]; | |
2802 | if ((rate->hw_value < IWL_RATE_COUNT) && | |
2803 | !(rate->flags & IEEE80211_CHAN_DISABLED)) { | |
2804 | IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n", | |
2805 | rate->hw_value, iwl3945_rates[rate->hw_value].plcp); | |
2806 | priv->active_rate |= (1 << rate->hw_value); | |
2807 | } | |
b481de9c ZY |
2808 | } |
2809 | ||
2810 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
2811 | priv->active_rate, priv->active_rate_basic); | |
2812 | ||
2813 | /* | |
2814 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
2815 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
2816 | * OFDM | |
2817 | */ | |
2818 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
2819 | priv->staging_rxon.cck_basic_rates = | |
2820 | ((priv->active_rate_basic & | |
2821 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
2822 | else | |
2823 | priv->staging_rxon.cck_basic_rates = | |
2824 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2825 | ||
2826 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
2827 | priv->staging_rxon.ofdm_basic_rates = | |
2828 | ((priv->active_rate_basic & | |
2829 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
2830 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
2831 | else | |
2832 | priv->staging_rxon.ofdm_basic_rates = | |
2833 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2834 | } | |
2835 | ||
bb8c093b | 2836 | static void iwl3945_radio_kill_sw(struct iwl3945_priv *priv, int disable_radio) |
b481de9c ZY |
2837 | { |
2838 | unsigned long flags; | |
2839 | ||
2840 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
2841 | return; | |
2842 | ||
2843 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
2844 | disable_radio ? "OFF" : "ON"); | |
2845 | ||
2846 | if (disable_radio) { | |
bb8c093b | 2847 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
2848 | /* FIXME: This is a workaround for AP */ |
2849 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
2850 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2851 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
2852 | CSR_UCODE_SW_BIT_RFKILL); |
2853 | spin_unlock_irqrestore(&priv->lock, flags); | |
bb8c093b | 2854 | iwl3945_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0); |
b481de9c ZY |
2855 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
2856 | } | |
2857 | return; | |
2858 | } | |
2859 | ||
2860 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2861 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
2862 | |
2863 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
2864 | spin_unlock_irqrestore(&priv->lock, flags); | |
2865 | ||
2866 | /* wake up ucode */ | |
2867 | msleep(10); | |
2868 | ||
2869 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
2870 | iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
2871 | if (!iwl3945_grab_nic_access(priv)) | |
2872 | iwl3945_release_nic_access(priv); | |
b481de9c ZY |
2873 | spin_unlock_irqrestore(&priv->lock, flags); |
2874 | ||
2875 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
2876 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2877 | "disabled by HW switch\n"); | |
2878 | return; | |
2879 | } | |
2880 | ||
808e72a0 ZY |
2881 | if (priv->is_open) |
2882 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
2883 | return; |
2884 | } | |
2885 | ||
bb8c093b | 2886 | void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb, |
b481de9c ZY |
2887 | u32 decrypt_res, struct ieee80211_rx_status *stats) |
2888 | { | |
2889 | u16 fc = | |
2890 | le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control); | |
2891 | ||
2892 | if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) | |
2893 | return; | |
2894 | ||
2895 | if (!(fc & IEEE80211_FCTL_PROTECTED)) | |
2896 | return; | |
2897 | ||
2898 | IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res); | |
2899 | switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { | |
2900 | case RX_RES_STATUS_SEC_TYPE_TKIP: | |
2901 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2902 | RX_RES_STATUS_BAD_ICV_MIC) | |
2903 | stats->flag |= RX_FLAG_MMIC_ERROR; | |
2904 | case RX_RES_STATUS_SEC_TYPE_WEP: | |
2905 | case RX_RES_STATUS_SEC_TYPE_CCMP: | |
2906 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2907 | RX_RES_STATUS_DECRYPT_OK) { | |
2908 | IWL_DEBUG_RX("hw decrypt successfully!!!\n"); | |
2909 | stats->flag |= RX_FLAG_DECRYPTED; | |
2910 | } | |
2911 | break; | |
2912 | ||
2913 | default: | |
2914 | break; | |
2915 | } | |
2916 | } | |
2917 | ||
b481de9c ZY |
2918 | #define IWL_PACKET_RETRY_TIME HZ |
2919 | ||
bb8c093b | 2920 | int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
2921 | { |
2922 | u16 sc = le16_to_cpu(header->seq_ctrl); | |
2923 | u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4; | |
2924 | u16 frag = sc & IEEE80211_SCTL_FRAG; | |
2925 | u16 *last_seq, *last_frag; | |
2926 | unsigned long *last_time; | |
2927 | ||
2928 | switch (priv->iw_mode) { | |
2929 | case IEEE80211_IF_TYPE_IBSS:{ | |
2930 | struct list_head *p; | |
bb8c093b | 2931 | struct iwl3945_ibss_seq *entry = NULL; |
b481de9c ZY |
2932 | u8 *mac = header->addr2; |
2933 | int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1); | |
2934 | ||
2935 | __list_for_each(p, &priv->ibss_mac_hash[index]) { | |
bb8c093b | 2936 | entry = list_entry(p, struct iwl3945_ibss_seq, list); |
b481de9c ZY |
2937 | if (!compare_ether_addr(entry->mac, mac)) |
2938 | break; | |
2939 | } | |
2940 | if (p == &priv->ibss_mac_hash[index]) { | |
2941 | entry = kzalloc(sizeof(*entry), GFP_ATOMIC); | |
2942 | if (!entry) { | |
bc434dd2 | 2943 | IWL_ERROR("Cannot malloc new mac entry\n"); |
b481de9c ZY |
2944 | return 0; |
2945 | } | |
2946 | memcpy(entry->mac, mac, ETH_ALEN); | |
2947 | entry->seq_num = seq; | |
2948 | entry->frag_num = frag; | |
2949 | entry->packet_time = jiffies; | |
bc434dd2 | 2950 | list_add(&entry->list, &priv->ibss_mac_hash[index]); |
b481de9c ZY |
2951 | return 0; |
2952 | } | |
2953 | last_seq = &entry->seq_num; | |
2954 | last_frag = &entry->frag_num; | |
2955 | last_time = &entry->packet_time; | |
2956 | break; | |
2957 | } | |
2958 | case IEEE80211_IF_TYPE_STA: | |
2959 | last_seq = &priv->last_seq_num; | |
2960 | last_frag = &priv->last_frag_num; | |
2961 | last_time = &priv->last_packet_time; | |
2962 | break; | |
2963 | default: | |
2964 | return 0; | |
2965 | } | |
2966 | if ((*last_seq == seq) && | |
2967 | time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) { | |
2968 | if (*last_frag == frag) | |
2969 | goto drop; | |
2970 | if (*last_frag + 1 != frag) | |
2971 | /* out-of-order fragment */ | |
2972 | goto drop; | |
2973 | } else | |
2974 | *last_seq = seq; | |
2975 | ||
2976 | *last_frag = frag; | |
2977 | *last_time = jiffies; | |
2978 | return 0; | |
2979 | ||
2980 | drop: | |
2981 | return 1; | |
2982 | } | |
2983 | ||
c8b0e6e1 | 2984 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
2985 | |
2986 | #include "iwl-spectrum.h" | |
2987 | ||
2988 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
2989 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
2990 | #define TIME_UNIT 1024 | |
2991 | ||
2992 | /* | |
2993 | * extended beacon time format | |
2994 | * time in usec will be changed into a 32-bit value in 8:24 format | |
2995 | * the high 1 byte is the beacon counts | |
2996 | * the lower 3 bytes is the time in usec within one beacon interval | |
2997 | */ | |
2998 | ||
bb8c093b | 2999 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
3000 | { |
3001 | u32 quot; | |
3002 | u32 rem; | |
3003 | u32 interval = beacon_interval * 1024; | |
3004 | ||
3005 | if (!interval || !usec) | |
3006 | return 0; | |
3007 | ||
3008 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
3009 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
3010 | ||
3011 | return (quot << 24) + rem; | |
3012 | } | |
3013 | ||
3014 | /* base is usually what we get from ucode with each received frame, | |
3015 | * the same as HW timer counter counting down | |
3016 | */ | |
3017 | ||
bb8c093b | 3018 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
3019 | { |
3020 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
3021 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
3022 | u32 interval = beacon_interval * TIME_UNIT; | |
3023 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
3024 | (addon & BEACON_TIME_MASK_HIGH); | |
3025 | ||
3026 | if (base_low > addon_low) | |
3027 | res += base_low - addon_low; | |
3028 | else if (base_low < addon_low) { | |
3029 | res += interval + base_low - addon_low; | |
3030 | res += (1 << 24); | |
3031 | } else | |
3032 | res += (1 << 24); | |
3033 | ||
3034 | return cpu_to_le32(res); | |
3035 | } | |
3036 | ||
bb8c093b | 3037 | static int iwl3945_get_measurement(struct iwl3945_priv *priv, |
b481de9c ZY |
3038 | struct ieee80211_measurement_params *params, |
3039 | u8 type) | |
3040 | { | |
bb8c093b CH |
3041 | struct iwl3945_spectrum_cmd spectrum; |
3042 | struct iwl3945_rx_packet *res; | |
3043 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
3044 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
3045 | .data = (void *)&spectrum, | |
3046 | .meta.flags = CMD_WANT_SKB, | |
3047 | }; | |
3048 | u32 add_time = le64_to_cpu(params->start_time); | |
3049 | int rc; | |
3050 | int spectrum_resp_status; | |
3051 | int duration = le16_to_cpu(params->duration); | |
3052 | ||
bb8c093b | 3053 | if (iwl3945_is_associated(priv)) |
b481de9c | 3054 | add_time = |
bb8c093b | 3055 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
3056 | le64_to_cpu(params->start_time) - priv->last_tsf, |
3057 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
3058 | ||
3059 | memset(&spectrum, 0, sizeof(spectrum)); | |
3060 | ||
3061 | spectrum.channel_count = cpu_to_le16(1); | |
3062 | spectrum.flags = | |
3063 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
3064 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
3065 | cmd.len = sizeof(spectrum); | |
3066 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
3067 | ||
bb8c093b | 3068 | if (iwl3945_is_associated(priv)) |
b481de9c | 3069 | spectrum.start_time = |
bb8c093b | 3070 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
3071 | add_time, |
3072 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
3073 | else | |
3074 | spectrum.start_time = 0; | |
3075 | ||
3076 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
3077 | spectrum.channels[0].channel = params->channel; | |
3078 | spectrum.channels[0].type = type; | |
3079 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
3080 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
3081 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
3082 | ||
bb8c093b | 3083 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
3084 | if (rc) |
3085 | return rc; | |
3086 | ||
bb8c093b | 3087 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
3088 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
3089 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
3090 | rc = -EIO; | |
3091 | } | |
3092 | ||
3093 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
3094 | switch (spectrum_resp_status) { | |
3095 | case 0: /* Command will be handled */ | |
3096 | if (res->u.spectrum.id != 0xff) { | |
bc434dd2 IS |
3097 | IWL_DEBUG_INFO("Replaced existing measurement: %d\n", |
3098 | res->u.spectrum.id); | |
b481de9c ZY |
3099 | priv->measurement_status &= ~MEASUREMENT_READY; |
3100 | } | |
3101 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
3102 | rc = 0; | |
3103 | break; | |
3104 | ||
3105 | case 1: /* Command will not be handled */ | |
3106 | rc = -EAGAIN; | |
3107 | break; | |
3108 | } | |
3109 | ||
3110 | dev_kfree_skb_any(cmd.meta.u.skb); | |
3111 | ||
3112 | return rc; | |
3113 | } | |
3114 | #endif | |
3115 | ||
bb8c093b CH |
3116 | static void iwl3945_rx_reply_alive(struct iwl3945_priv *priv, |
3117 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3118 | { |
bb8c093b CH |
3119 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3120 | struct iwl3945_alive_resp *palive; | |
b481de9c ZY |
3121 | struct delayed_work *pwork; |
3122 | ||
3123 | palive = &pkt->u.alive_frame; | |
3124 | ||
3125 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
3126 | "0x%01X 0x%01X\n", | |
3127 | palive->is_valid, palive->ver_type, | |
3128 | palive->ver_subtype); | |
3129 | ||
3130 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
3131 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
3132 | memcpy(&priv->card_alive_init, | |
3133 | &pkt->u.alive_frame, | |
bb8c093b | 3134 | sizeof(struct iwl3945_init_alive_resp)); |
b481de9c ZY |
3135 | pwork = &priv->init_alive_start; |
3136 | } else { | |
3137 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
3138 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
bb8c093b | 3139 | sizeof(struct iwl3945_alive_resp)); |
b481de9c | 3140 | pwork = &priv->alive_start; |
bb8c093b | 3141 | iwl3945_disable_events(priv); |
b481de9c ZY |
3142 | } |
3143 | ||
3144 | /* We delay the ALIVE response by 5ms to | |
3145 | * give the HW RF Kill time to activate... */ | |
3146 | if (palive->is_valid == UCODE_VALID_OK) | |
3147 | queue_delayed_work(priv->workqueue, pwork, | |
3148 | msecs_to_jiffies(5)); | |
3149 | else | |
3150 | IWL_WARNING("uCode did not respond OK.\n"); | |
3151 | } | |
3152 | ||
bb8c093b CH |
3153 | static void iwl3945_rx_reply_add_sta(struct iwl3945_priv *priv, |
3154 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3155 | { |
bb8c093b | 3156 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3157 | |
3158 | IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); | |
3159 | return; | |
3160 | } | |
3161 | ||
bb8c093b CH |
3162 | static void iwl3945_rx_reply_error(struct iwl3945_priv *priv, |
3163 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3164 | { |
bb8c093b | 3165 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3166 | |
3167 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
3168 | "seq 0x%04X ser 0x%08X\n", | |
3169 | le32_to_cpu(pkt->u.err_resp.error_type), | |
3170 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
3171 | pkt->u.err_resp.cmd_id, | |
3172 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
3173 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
3174 | } | |
3175 | ||
3176 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
3177 | ||
bb8c093b | 3178 | static void iwl3945_rx_csa(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb) |
b481de9c | 3179 | { |
bb8c093b CH |
3180 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3181 | struct iwl3945_rxon_cmd *rxon = (void *)&priv->active_rxon; | |
3182 | struct iwl3945_csa_notification *csa = &(pkt->u.csa_notif); | |
b481de9c ZY |
3183 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
3184 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
3185 | rxon->channel = csa->channel; | |
3186 | priv->staging_rxon.channel = csa->channel; | |
3187 | } | |
3188 | ||
bb8c093b CH |
3189 | static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv *priv, |
3190 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3191 | { |
c8b0e6e1 | 3192 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
bb8c093b CH |
3193 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3194 | struct iwl3945_spectrum_notification *report = &(pkt->u.spectrum_notif); | |
b481de9c ZY |
3195 | |
3196 | if (!report->state) { | |
3197 | IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO, | |
3198 | "Spectrum Measure Notification: Start\n"); | |
3199 | return; | |
3200 | } | |
3201 | ||
3202 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
3203 | priv->measurement_status |= MEASUREMENT_READY; | |
3204 | #endif | |
3205 | } | |
3206 | ||
bb8c093b CH |
3207 | static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv *priv, |
3208 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3209 | { |
c8b0e6e1 | 3210 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3211 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3212 | struct iwl3945_sleep_notification *sleep = &(pkt->u.sleep_notif); | |
b481de9c ZY |
3213 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
3214 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
3215 | #endif | |
3216 | } | |
3217 | ||
bb8c093b CH |
3218 | static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv *priv, |
3219 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3220 | { |
bb8c093b | 3221 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3222 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
3223 | "notification for %s:\n", | |
3224 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bb8c093b | 3225 | iwl3945_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
3226 | } |
3227 | ||
bb8c093b | 3228 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 3229 | { |
bb8c093b CH |
3230 | struct iwl3945_priv *priv = |
3231 | container_of(work, struct iwl3945_priv, beacon_update); | |
b481de9c ZY |
3232 | struct sk_buff *beacon; |
3233 | ||
3234 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 3235 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
3236 | |
3237 | if (!beacon) { | |
3238 | IWL_ERROR("update beacon failed\n"); | |
3239 | return; | |
3240 | } | |
3241 | ||
3242 | mutex_lock(&priv->mutex); | |
3243 | /* new beacon skb is allocated every time; dispose previous.*/ | |
3244 | if (priv->ibss_beacon) | |
3245 | dev_kfree_skb(priv->ibss_beacon); | |
3246 | ||
3247 | priv->ibss_beacon = beacon; | |
3248 | mutex_unlock(&priv->mutex); | |
3249 | ||
bb8c093b | 3250 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3251 | } |
3252 | ||
bb8c093b CH |
3253 | static void iwl3945_rx_beacon_notif(struct iwl3945_priv *priv, |
3254 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3255 | { |
c8b0e6e1 | 3256 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3257 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3258 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); | |
b481de9c ZY |
3259 | u8 rate = beacon->beacon_notify_hdr.rate; |
3260 | ||
3261 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
3262 | "tsf %d %d rate %d\n", | |
3263 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
3264 | beacon->beacon_notify_hdr.failure_frame, | |
3265 | le32_to_cpu(beacon->ibss_mgr_status), | |
3266 | le32_to_cpu(beacon->high_tsf), | |
3267 | le32_to_cpu(beacon->low_tsf), rate); | |
3268 | #endif | |
3269 | ||
3270 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && | |
3271 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) | |
3272 | queue_work(priv->workqueue, &priv->beacon_update); | |
3273 | } | |
3274 | ||
3275 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
bb8c093b CH |
3276 | static void iwl3945_rx_reply_scan(struct iwl3945_priv *priv, |
3277 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3278 | { |
c8b0e6e1 | 3279 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3280 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3281 | struct iwl3945_scanreq_notification *notif = | |
3282 | (struct iwl3945_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
3283 | |
3284 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
3285 | #endif | |
3286 | } | |
3287 | ||
3288 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
bb8c093b CH |
3289 | static void iwl3945_rx_scan_start_notif(struct iwl3945_priv *priv, |
3290 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3291 | { |
bb8c093b CH |
3292 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3293 | struct iwl3945_scanstart_notification *notif = | |
3294 | (struct iwl3945_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
3295 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
3296 | IWL_DEBUG_SCAN("Scan start: " | |
3297 | "%d [802.11%s] " | |
3298 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
3299 | notif->channel, | |
3300 | notif->band ? "bg" : "a", | |
3301 | notif->tsf_high, | |
3302 | notif->tsf_low, notif->status, notif->beacon_timer); | |
3303 | } | |
3304 | ||
3305 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
bb8c093b CH |
3306 | static void iwl3945_rx_scan_results_notif(struct iwl3945_priv *priv, |
3307 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3308 | { |
bb8c093b CH |
3309 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3310 | struct iwl3945_scanresults_notification *notif = | |
3311 | (struct iwl3945_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
3312 | |
3313 | IWL_DEBUG_SCAN("Scan ch.res: " | |
3314 | "%d [802.11%s] " | |
3315 | "(TSF: 0x%08X:%08X) - %d " | |
3316 | "elapsed=%lu usec (%dms since last)\n", | |
3317 | notif->channel, | |
3318 | notif->band ? "bg" : "a", | |
3319 | le32_to_cpu(notif->tsf_high), | |
3320 | le32_to_cpu(notif->tsf_low), | |
3321 | le32_to_cpu(notif->statistics[0]), | |
3322 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
3323 | jiffies_to_msecs(elapsed_jiffies | |
3324 | (priv->last_scan_jiffies, jiffies))); | |
3325 | ||
3326 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3327 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3328 | } |
3329 | ||
3330 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
bb8c093b CH |
3331 | static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv *priv, |
3332 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3333 | { |
bb8c093b CH |
3334 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3335 | struct iwl3945_scancomplete_notification *scan_notif = (void *)pkt->u.raw; | |
b481de9c ZY |
3336 | |
3337 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
3338 | scan_notif->scanned_channels, | |
3339 | scan_notif->tsf_low, | |
3340 | scan_notif->tsf_high, scan_notif->status); | |
3341 | ||
3342 | /* The HW is no longer scanning */ | |
3343 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
3344 | ||
3345 | /* The scan completion notification came in, so kill that timer... */ | |
3346 | cancel_delayed_work(&priv->scan_check); | |
3347 | ||
3348 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
66b5004d RR |
3349 | (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ? |
3350 | "2.4" : "5.2", | |
b481de9c ZY |
3351 | jiffies_to_msecs(elapsed_jiffies |
3352 | (priv->scan_pass_start, jiffies))); | |
3353 | ||
66b5004d RR |
3354 | /* Remove this scanned band from the list of pending |
3355 | * bands to scan, band G precedes A in order of scanning | |
3356 | * as seen in iwl3945_bg_request_scan */ | |
3357 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) | |
3358 | priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ); | |
3359 | else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) | |
3360 | priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
3361 | |
3362 | /* If a request to abort was given, or the scan did not succeed | |
3363 | * then we reset the scan state machine and terminate, | |
3364 | * re-queuing another scan if one has been requested */ | |
3365 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3366 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
3367 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
3368 | } else { | |
3369 | /* If there are more bands on this scan pass reschedule */ | |
3370 | if (priv->scan_bands > 0) | |
3371 | goto reschedule; | |
3372 | } | |
3373 | ||
3374 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3375 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3376 | IWL_DEBUG_INFO("Setting scan to off\n"); |
3377 | ||
3378 | clear_bit(STATUS_SCANNING, &priv->status); | |
3379 | ||
3380 | IWL_DEBUG_INFO("Scan took %dms\n", | |
3381 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
3382 | ||
3383 | queue_work(priv->workqueue, &priv->scan_completed); | |
3384 | ||
3385 | return; | |
3386 | ||
3387 | reschedule: | |
3388 | priv->scan_pass_start = jiffies; | |
3389 | queue_work(priv->workqueue, &priv->request_scan); | |
3390 | } | |
3391 | ||
3392 | /* Handle notification from uCode that card's power state is changing | |
3393 | * due to software, hardware, or critical temperature RFKILL */ | |
bb8c093b CH |
3394 | static void iwl3945_rx_card_state_notif(struct iwl3945_priv *priv, |
3395 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3396 | { |
bb8c093b | 3397 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3398 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
3399 | unsigned long status = priv->status; | |
3400 | ||
3401 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
3402 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
3403 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
3404 | ||
bb8c093b | 3405 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
3406 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3407 | ||
3408 | if (flags & HW_CARD_DISABLED) | |
3409 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3410 | else | |
3411 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3412 | ||
3413 | ||
3414 | if (flags & SW_CARD_DISABLED) | |
3415 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
3416 | else | |
3417 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
3418 | ||
bb8c093b | 3419 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
3420 | |
3421 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
3422 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
3423 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
3424 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
3425 | queue_work(priv->workqueue, &priv->rf_kill); | |
3426 | else | |
3427 | wake_up_interruptible(&priv->wait_command_queue); | |
3428 | } | |
3429 | ||
3430 | /** | |
bb8c093b | 3431 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
3432 | * |
3433 | * Setup the RX handlers for each of the reply types sent from the uCode | |
3434 | * to the host. | |
3435 | * | |
3436 | * This function chains into the hardware specific files for them to setup | |
3437 | * any hardware specific handlers as well. | |
3438 | */ | |
bb8c093b | 3439 | static void iwl3945_setup_rx_handlers(struct iwl3945_priv *priv) |
b481de9c | 3440 | { |
bb8c093b CH |
3441 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
3442 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
3443 | priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error; | |
3444 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa; | |
b481de9c | 3445 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
3446 | iwl3945_rx_spectrum_measure_notif; |
3447 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif; | |
b481de9c | 3448 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
3449 | iwl3945_rx_pm_debug_statistics_notif; |
3450 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; | |
b481de9c | 3451 | |
9fbab516 BC |
3452 | /* |
3453 | * The same handler is used for both the REPLY to a discrete | |
3454 | * statistics request from the host as well as for the periodic | |
3455 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 3456 | */ |
bb8c093b CH |
3457 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
3458 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 3459 | |
bb8c093b CH |
3460 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan; |
3461 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif; | |
b481de9c | 3462 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 3463 | iwl3945_rx_scan_results_notif; |
b481de9c | 3464 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b CH |
3465 | iwl3945_rx_scan_complete_notif; |
3466 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; | |
b481de9c | 3467 | |
9fbab516 | 3468 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 3469 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
3470 | } |
3471 | ||
91c066f2 TW |
3472 | /** |
3473 | * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries | |
3474 | * When FW advances 'R' index, all entries between old and new 'R' index | |
3475 | * need to be reclaimed. | |
3476 | */ | |
3477 | static void iwl3945_cmd_queue_reclaim(struct iwl3945_priv *priv, | |
3478 | int txq_id, int index) | |
3479 | { | |
3480 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; | |
3481 | struct iwl3945_queue *q = &txq->q; | |
3482 | int nfreed = 0; | |
3483 | ||
3484 | if ((index >= q->n_bd) || (iwl3945_x2_queue_used(q, index) == 0)) { | |
3485 | IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " | |
3486 | "is out of range [0-%d] %d %d.\n", txq_id, | |
3487 | index, q->n_bd, q->write_ptr, q->read_ptr); | |
3488 | return; | |
3489 | } | |
3490 | ||
3491 | for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; | |
3492 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { | |
3493 | if (nfreed > 1) { | |
3494 | IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, | |
3495 | q->write_ptr, q->read_ptr); | |
3496 | queue_work(priv->workqueue, &priv->restart); | |
3497 | break; | |
3498 | } | |
3499 | nfreed++; | |
3500 | } | |
3501 | } | |
3502 | ||
3503 | ||
b481de9c | 3504 | /** |
bb8c093b | 3505 | * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
3506 | * @rxb: Rx buffer to reclaim |
3507 | * | |
3508 | * If an Rx buffer has an async callback associated with it the callback | |
3509 | * will be executed. The attached skb (if present) will only be freed | |
3510 | * if the callback returns 1 | |
3511 | */ | |
bb8c093b CH |
3512 | static void iwl3945_tx_cmd_complete(struct iwl3945_priv *priv, |
3513 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3514 | { |
bb8c093b | 3515 | struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3516 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
3517 | int txq_id = SEQ_TO_QUEUE(sequence); | |
3518 | int index = SEQ_TO_INDEX(sequence); | |
3519 | int huge = sequence & SEQ_HUGE_FRAME; | |
3520 | int cmd_index; | |
bb8c093b | 3521 | struct iwl3945_cmd *cmd; |
b481de9c | 3522 | |
b481de9c ZY |
3523 | BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); |
3524 | ||
3525 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); | |
3526 | cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
3527 | ||
3528 | /* Input error checking is done when commands are added to queue. */ | |
3529 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
3530 | cmd->meta.source->u.skb = rxb->skb; | |
3531 | rxb->skb = NULL; | |
3532 | } else if (cmd->meta.u.callback && | |
3533 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
3534 | rxb->skb = NULL; | |
3535 | ||
91c066f2 | 3536 | iwl3945_cmd_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
3537 | |
3538 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
3539 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
3540 | wake_up_interruptible(&priv->wait_command_queue); | |
3541 | } | |
3542 | } | |
3543 | ||
3544 | /************************** RX-FUNCTIONS ****************************/ | |
3545 | /* | |
3546 | * Rx theory of operation | |
3547 | * | |
3548 | * The host allocates 32 DMA target addresses and passes the host address | |
3549 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
3550 | * 0 to 31 | |
3551 | * | |
3552 | * Rx Queue Indexes | |
3553 | * The host/firmware share two index registers for managing the Rx buffers. | |
3554 | * | |
3555 | * The READ index maps to the first position that the firmware may be writing | |
3556 | * to -- the driver can read up to (but not including) this position and get | |
3557 | * good data. | |
3558 | * The READ index is managed by the firmware once the card is enabled. | |
3559 | * | |
3560 | * The WRITE index maps to the last position the driver has read from -- the | |
3561 | * position preceding WRITE is the last slot the firmware can place a packet. | |
3562 | * | |
3563 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
3564 | * WRITE = READ. | |
3565 | * | |
9fbab516 | 3566 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
3567 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
3568 | * | |
9fbab516 | 3569 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
3570 | * and fire the RX interrupt. The driver can then query the READ index and |
3571 | * process as many packets as possible, moving the WRITE index forward as it | |
3572 | * resets the Rx queue buffers with new memory. | |
3573 | * | |
3574 | * The management in the driver is as follows: | |
3575 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
3576 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 3577 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 3578 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
3579 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
3580 | * 'processed' and 'read' driver indexes as well) | |
3581 | * + A received packet is processed and handed to the kernel network stack, | |
3582 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
3583 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
3584 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
3585 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
3586 | * were enough free buffers and RX_STALLED is set it is cleared. | |
3587 | * | |
3588 | * | |
3589 | * Driver sequence: | |
3590 | * | |
9fbab516 BC |
3591 | * iwl3945_rx_queue_alloc() Allocates rx_free |
3592 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls | |
bb8c093b | 3593 | * iwl3945_rx_queue_restock |
9fbab516 | 3594 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
3595 | * queue, updates firmware pointers, and updates |
3596 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 3597 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
3598 | * |
3599 | * -- enable interrupts -- | |
9fbab516 | 3600 | * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the |
b481de9c ZY |
3601 | * READ INDEX, detaching the SKB from the pool. |
3602 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 3603 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
3604 | * slots. |
3605 | * ... | |
3606 | * | |
3607 | */ | |
3608 | ||
3609 | /** | |
bb8c093b | 3610 | * iwl3945_rx_queue_space - Return number of free slots available in queue. |
b481de9c | 3611 | */ |
bb8c093b | 3612 | static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue *q) |
b481de9c ZY |
3613 | { |
3614 | int s = q->read - q->write; | |
3615 | if (s <= 0) | |
3616 | s += RX_QUEUE_SIZE; | |
3617 | /* keep some buffer to not confuse full and empty queue */ | |
3618 | s -= 2; | |
3619 | if (s < 0) | |
3620 | s = 0; | |
3621 | return s; | |
3622 | } | |
3623 | ||
3624 | /** | |
bb8c093b | 3625 | * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue |
b481de9c | 3626 | */ |
bb8c093b | 3627 | int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv, struct iwl3945_rx_queue *q) |
b481de9c ZY |
3628 | { |
3629 | u32 reg = 0; | |
3630 | int rc = 0; | |
3631 | unsigned long flags; | |
3632 | ||
3633 | spin_lock_irqsave(&q->lock, flags); | |
3634 | ||
3635 | if (q->need_update == 0) | |
3636 | goto exit_unlock; | |
3637 | ||
6440adb5 | 3638 | /* If power-saving is in use, make sure device is awake */ |
b481de9c | 3639 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { |
bb8c093b | 3640 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3641 | |
3642 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
bb8c093b | 3643 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3644 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3645 | goto exit_unlock; | |
3646 | } | |
3647 | ||
bb8c093b | 3648 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3649 | if (rc) |
3650 | goto exit_unlock; | |
3651 | ||
6440adb5 | 3652 | /* Device expects a multiple of 8 */ |
bb8c093b | 3653 | iwl3945_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, |
b481de9c | 3654 | q->write & ~0x7); |
bb8c093b | 3655 | iwl3945_release_nic_access(priv); |
6440adb5 BC |
3656 | |
3657 | /* Else device is assumed to be awake */ | |
b481de9c | 3658 | } else |
6440adb5 | 3659 | /* Device expects a multiple of 8 */ |
bb8c093b | 3660 | iwl3945_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7); |
b481de9c ZY |
3661 | |
3662 | ||
3663 | q->need_update = 0; | |
3664 | ||
3665 | exit_unlock: | |
3666 | spin_unlock_irqrestore(&q->lock, flags); | |
3667 | return rc; | |
3668 | } | |
3669 | ||
3670 | /** | |
9fbab516 | 3671 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 3672 | */ |
bb8c093b | 3673 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv *priv, |
b481de9c ZY |
3674 | dma_addr_t dma_addr) |
3675 | { | |
3676 | return cpu_to_le32((u32)dma_addr); | |
3677 | } | |
3678 | ||
3679 | /** | |
bb8c093b | 3680 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 3681 | * |
9fbab516 | 3682 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 3683 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 3684 | * as we can, pulling from rx_free. |
b481de9c ZY |
3685 | * |
3686 | * This moves the 'write' index forward to catch up with 'processed', and | |
3687 | * also updates the memory address in the firmware to reference the new | |
3688 | * target buffer. | |
3689 | */ | |
bb8c093b | 3690 | static int iwl3945_rx_queue_restock(struct iwl3945_priv *priv) |
b481de9c | 3691 | { |
bb8c093b | 3692 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3693 | struct list_head *element; |
bb8c093b | 3694 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3695 | unsigned long flags; |
3696 | int write, rc; | |
3697 | ||
3698 | spin_lock_irqsave(&rxq->lock, flags); | |
3699 | write = rxq->write & ~0x7; | |
bb8c093b | 3700 | while ((iwl3945_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 3701 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 3702 | element = rxq->rx_free.next; |
bb8c093b | 3703 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
b481de9c | 3704 | list_del(element); |
6440adb5 BC |
3705 | |
3706 | /* Point to Rx buffer via next RBD in circular buffer */ | |
bb8c093b | 3707 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->dma_addr); |
b481de9c ZY |
3708 | rxq->queue[rxq->write] = rxb; |
3709 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
3710 | rxq->free_count--; | |
3711 | } | |
3712 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3713 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
3714 | * refill it */ | |
3715 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
3716 | queue_work(priv->workqueue, &priv->rx_replenish); | |
3717 | ||
3718 | ||
6440adb5 BC |
3719 | /* If we've added more space for the firmware to place data, tell it. |
3720 | * Increment device's write pointer in multiples of 8. */ | |
b481de9c ZY |
3721 | if ((write != (rxq->write & ~0x7)) |
3722 | || (abs(rxq->write - rxq->read) > 7)) { | |
3723 | spin_lock_irqsave(&rxq->lock, flags); | |
3724 | rxq->need_update = 1; | |
3725 | spin_unlock_irqrestore(&rxq->lock, flags); | |
bb8c093b | 3726 | rc = iwl3945_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
3727 | if (rc) |
3728 | return rc; | |
3729 | } | |
3730 | ||
3731 | return 0; | |
3732 | } | |
3733 | ||
3734 | /** | |
bb8c093b | 3735 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
3736 | * |
3737 | * When moving to rx_free an SKB is allocated for the slot. | |
3738 | * | |
bb8c093b | 3739 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 3740 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 3741 | */ |
5c0eef96 | 3742 | static void iwl3945_rx_allocate(struct iwl3945_priv *priv) |
b481de9c | 3743 | { |
bb8c093b | 3744 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3745 | struct list_head *element; |
bb8c093b | 3746 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3747 | unsigned long flags; |
3748 | spin_lock_irqsave(&rxq->lock, flags); | |
3749 | while (!list_empty(&rxq->rx_used)) { | |
3750 | element = rxq->rx_used.next; | |
bb8c093b | 3751 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
6440adb5 BC |
3752 | |
3753 | /* Alloc a new receive buffer */ | |
b481de9c ZY |
3754 | rxb->skb = |
3755 | alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC); | |
3756 | if (!rxb->skb) { | |
3757 | if (net_ratelimit()) | |
3758 | printk(KERN_CRIT DRV_NAME | |
3759 | ": Can not allocate SKB buffers\n"); | |
3760 | /* We don't reschedule replenish work here -- we will | |
3761 | * call the restock method and if it still needs | |
3762 | * more buffers it will schedule replenish */ | |
3763 | break; | |
3764 | } | |
12342c47 ZY |
3765 | |
3766 | /* If radiotap head is required, reserve some headroom here. | |
3767 | * The physical head count is a variable rx_stats->phy_count. | |
3768 | * We reserve 4 bytes here. Plus these extra bytes, the | |
3769 | * headroom of the physical head should be enough for the | |
3770 | * radiotap head that iwl3945 supported. See iwl3945_rt. | |
3771 | */ | |
3772 | skb_reserve(rxb->skb, 4); | |
3773 | ||
b481de9c ZY |
3774 | priv->alloc_rxb_skb++; |
3775 | list_del(element); | |
6440adb5 BC |
3776 | |
3777 | /* Get physical address of RB/SKB */ | |
b481de9c ZY |
3778 | rxb->dma_addr = |
3779 | pci_map_single(priv->pci_dev, rxb->skb->data, | |
3780 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3781 | list_add_tail(&rxb->list, &rxq->rx_free); | |
3782 | rxq->free_count++; | |
3783 | } | |
3784 | spin_unlock_irqrestore(&rxq->lock, flags); | |
5c0eef96 MA |
3785 | } |
3786 | ||
3787 | /* | |
3788 | * this should be called while priv->lock is locked | |
3789 | */ | |
4fd1f841 | 3790 | static void __iwl3945_rx_replenish(void *data) |
5c0eef96 MA |
3791 | { |
3792 | struct iwl3945_priv *priv = data; | |
3793 | ||
3794 | iwl3945_rx_allocate(priv); | |
3795 | iwl3945_rx_queue_restock(priv); | |
3796 | } | |
3797 | ||
3798 | ||
3799 | void iwl3945_rx_replenish(void *data) | |
3800 | { | |
3801 | struct iwl3945_priv *priv = data; | |
3802 | unsigned long flags; | |
3803 | ||
3804 | iwl3945_rx_allocate(priv); | |
b481de9c ZY |
3805 | |
3806 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 3807 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3808 | spin_unlock_irqrestore(&priv->lock, flags); |
3809 | } | |
3810 | ||
3811 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. | |
9fbab516 | 3812 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
b481de9c ZY |
3813 | * This free routine walks the list of POOL entries and if SKB is set to |
3814 | * non NULL it is unmapped and freed | |
3815 | */ | |
bb8c093b | 3816 | static void iwl3945_rx_queue_free(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3817 | { |
3818 | int i; | |
3819 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
3820 | if (rxq->pool[i].skb != NULL) { | |
3821 | pci_unmap_single(priv->pci_dev, | |
3822 | rxq->pool[i].dma_addr, | |
3823 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3824 | dev_kfree_skb(rxq->pool[i].skb); | |
3825 | } | |
3826 | } | |
3827 | ||
3828 | pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, | |
3829 | rxq->dma_addr); | |
3830 | rxq->bd = NULL; | |
3831 | } | |
3832 | ||
bb8c093b | 3833 | int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv) |
b481de9c | 3834 | { |
bb8c093b | 3835 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
3836 | struct pci_dev *dev = priv->pci_dev; |
3837 | int i; | |
3838 | ||
3839 | spin_lock_init(&rxq->lock); | |
3840 | INIT_LIST_HEAD(&rxq->rx_free); | |
3841 | INIT_LIST_HEAD(&rxq->rx_used); | |
6440adb5 BC |
3842 | |
3843 | /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ | |
b481de9c ZY |
3844 | rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr); |
3845 | if (!rxq->bd) | |
3846 | return -ENOMEM; | |
6440adb5 | 3847 | |
b481de9c ZY |
3848 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
3849 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) | |
3850 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
6440adb5 | 3851 | |
b481de9c ZY |
3852 | /* Set us so that we have processed and used all buffers, but have |
3853 | * not restocked the Rx queue with fresh buffers */ | |
3854 | rxq->read = rxq->write = 0; | |
3855 | rxq->free_count = 0; | |
3856 | rxq->need_update = 0; | |
3857 | return 0; | |
3858 | } | |
3859 | ||
bb8c093b | 3860 | void iwl3945_rx_queue_reset(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3861 | { |
3862 | unsigned long flags; | |
3863 | int i; | |
3864 | spin_lock_irqsave(&rxq->lock, flags); | |
3865 | INIT_LIST_HEAD(&rxq->rx_free); | |
3866 | INIT_LIST_HEAD(&rxq->rx_used); | |
3867 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
3868 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
3869 | /* In the reset function, these buffers may have been allocated | |
3870 | * to an SKB, so we need to unmap and free potential storage */ | |
3871 | if (rxq->pool[i].skb != NULL) { | |
3872 | pci_unmap_single(priv->pci_dev, | |
3873 | rxq->pool[i].dma_addr, | |
3874 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3875 | priv->alloc_rxb_skb--; | |
3876 | dev_kfree_skb(rxq->pool[i].skb); | |
3877 | rxq->pool[i].skb = NULL; | |
3878 | } | |
3879 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
3880 | } | |
3881 | ||
3882 | /* Set us so that we have processed and used all buffers, but have | |
3883 | * not restocked the Rx queue with fresh buffers */ | |
3884 | rxq->read = rxq->write = 0; | |
3885 | rxq->free_count = 0; | |
3886 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3887 | } | |
3888 | ||
3889 | /* Convert linear signal-to-noise ratio into dB */ | |
3890 | static u8 ratio2dB[100] = { | |
3891 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
3892 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
3893 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
3894 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
3895 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
3896 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
3897 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
3898 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
3899 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
3900 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
3901 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
3902 | }; | |
3903 | ||
3904 | /* Calculates a relative dB value from a ratio of linear | |
3905 | * (i.e. not dB) signal levels. | |
3906 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 3907 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 3908 | { |
221c80cf AB |
3909 | /* 1000:1 or higher just report as 60 dB */ |
3910 | if (sig_ratio >= 1000) | |
b481de9c ZY |
3911 | return 60; |
3912 | ||
221c80cf | 3913 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 3914 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 3915 | if (sig_ratio >= 100) |
b481de9c ZY |
3916 | return (20 + (int)ratio2dB[sig_ratio/10]); |
3917 | ||
3918 | /* We shouldn't see this */ | |
3919 | if (sig_ratio < 1) | |
3920 | return 0; | |
3921 | ||
3922 | /* Use table for ratios 1:1 - 99:1 */ | |
3923 | return (int)ratio2dB[sig_ratio]; | |
3924 | } | |
3925 | ||
3926 | #define PERFECT_RSSI (-20) /* dBm */ | |
3927 | #define WORST_RSSI (-95) /* dBm */ | |
3928 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
3929 | ||
3930 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
3931 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
3932 | * about formulas used below. */ | |
bb8c093b | 3933 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
b481de9c ZY |
3934 | { |
3935 | int sig_qual; | |
3936 | int degradation = PERFECT_RSSI - rssi_dbm; | |
3937 | ||
3938 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
3939 | * as indicator; formula is (signal dbm - noise dbm). | |
3940 | * SNR at or above 40 is a great signal (100%). | |
3941 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
3942 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
3943 | if (noise_dbm) { | |
3944 | if (rssi_dbm - noise_dbm >= 40) | |
3945 | return 100; | |
3946 | else if (rssi_dbm < noise_dbm) | |
3947 | return 0; | |
3948 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
3949 | ||
3950 | /* Else use just the signal level. | |
3951 | * This formula is a least squares fit of data points collected and | |
3952 | * compared with a reference system that had a percentage (%) display | |
3953 | * for signal quality. */ | |
3954 | } else | |
3955 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
3956 | (15 * RSSI_RANGE + 62 * degradation)) / | |
3957 | (RSSI_RANGE * RSSI_RANGE); | |
3958 | ||
3959 | if (sig_qual > 100) | |
3960 | sig_qual = 100; | |
3961 | else if (sig_qual < 1) | |
3962 | sig_qual = 0; | |
3963 | ||
3964 | return sig_qual; | |
3965 | } | |
3966 | ||
3967 | /** | |
9fbab516 | 3968 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
3969 | * |
3970 | * Uses the priv->rx_handlers callback function array to invoke | |
3971 | * the appropriate handlers, including command responses, | |
3972 | * frame-received notifications, and other notifications. | |
3973 | */ | |
bb8c093b | 3974 | static void iwl3945_rx_handle(struct iwl3945_priv *priv) |
b481de9c | 3975 | { |
bb8c093b CH |
3976 | struct iwl3945_rx_mem_buffer *rxb; |
3977 | struct iwl3945_rx_packet *pkt; | |
3978 | struct iwl3945_rx_queue *rxq = &priv->rxq; | |
b481de9c ZY |
3979 | u32 r, i; |
3980 | int reclaim; | |
3981 | unsigned long flags; | |
5c0eef96 | 3982 | u8 fill_rx = 0; |
d68ab680 | 3983 | u32 count = 8; |
b481de9c | 3984 | |
6440adb5 BC |
3985 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
3986 | * buffer that the driver may process (last buffer filled by ucode). */ | |
bb8c093b | 3987 | r = iwl3945_hw_get_rx_read(priv); |
b481de9c ZY |
3988 | i = rxq->read; |
3989 | ||
5c0eef96 MA |
3990 | if (iwl3945_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
3991 | fill_rx = 1; | |
b481de9c ZY |
3992 | /* Rx interrupt, but nothing sent from uCode */ |
3993 | if (i == r) | |
3994 | IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i); | |
3995 | ||
3996 | while (i != r) { | |
3997 | rxb = rxq->queue[i]; | |
3998 | ||
9fbab516 | 3999 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
4000 | * then a bug has been introduced in the queue refilling |
4001 | * routines -- catch it here */ | |
4002 | BUG_ON(rxb == NULL); | |
4003 | ||
4004 | rxq->queue[i] = NULL; | |
4005 | ||
4006 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
4007 | IWL_RX_BUF_SIZE, | |
4008 | PCI_DMA_FROMDEVICE); | |
bb8c093b | 4009 | pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
4010 | |
4011 | /* Reclaim a command buffer only if this packet is a response | |
4012 | * to a (driver-originated) command. | |
4013 | * If the packet (e.g. Rx frame) originated from uCode, | |
4014 | * there is no command buffer to reclaim. | |
4015 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
4016 | * but apparently a few don't get set; catch them here. */ | |
4017 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
4018 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
4019 | (pkt->hdr.cmd != REPLY_TX); | |
4020 | ||
4021 | /* Based on type of command response or notification, | |
4022 | * handle those that need handling via function in | |
bb8c093b | 4023 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c ZY |
4024 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
4025 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
4026 | "r = %d, i = %d, %s, 0x%02x\n", r, i, | |
4027 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
4028 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); | |
4029 | } else { | |
4030 | /* No handling needed */ | |
4031 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
4032 | "r %d i %d No handler needed for %s, 0x%02x\n", | |
4033 | r, i, get_cmd_string(pkt->hdr.cmd), | |
4034 | pkt->hdr.cmd); | |
4035 | } | |
4036 | ||
4037 | if (reclaim) { | |
9fbab516 BC |
4038 | /* Invoke any callbacks, transfer the skb to caller, and |
4039 | * fire off the (possibly) blocking iwl3945_send_cmd() | |
b481de9c ZY |
4040 | * as we reclaim the driver command queue */ |
4041 | if (rxb && rxb->skb) | |
bb8c093b | 4042 | iwl3945_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
4043 | else |
4044 | IWL_WARNING("Claim null rxb?\n"); | |
4045 | } | |
4046 | ||
4047 | /* For now we just don't re-use anything. We can tweak this | |
4048 | * later to try and re-use notification packets and SKBs that | |
4049 | * fail to Rx correctly */ | |
4050 | if (rxb->skb != NULL) { | |
4051 | priv->alloc_rxb_skb--; | |
4052 | dev_kfree_skb_any(rxb->skb); | |
4053 | rxb->skb = NULL; | |
4054 | } | |
4055 | ||
4056 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
4057 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
4058 | spin_lock_irqsave(&rxq->lock, flags); | |
4059 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
4060 | spin_unlock_irqrestore(&rxq->lock, flags); | |
4061 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
4062 | /* If there are a lot of unused frames, |
4063 | * restock the Rx queue so ucode won't assert. */ | |
4064 | if (fill_rx) { | |
4065 | count++; | |
4066 | if (count >= 8) { | |
4067 | priv->rxq.read = i; | |
4068 | __iwl3945_rx_replenish(priv); | |
4069 | count = 0; | |
4070 | } | |
4071 | } | |
b481de9c ZY |
4072 | } |
4073 | ||
4074 | /* Backtrack one entry */ | |
4075 | priv->rxq.read = i; | |
bb8c093b | 4076 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
4077 | } |
4078 | ||
6440adb5 BC |
4079 | /** |
4080 | * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware | |
4081 | */ | |
bb8c093b CH |
4082 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
4083 | struct iwl3945_tx_queue *txq) | |
b481de9c ZY |
4084 | { |
4085 | u32 reg = 0; | |
4086 | int rc = 0; | |
4087 | int txq_id = txq->q.id; | |
4088 | ||
4089 | if (txq->need_update == 0) | |
4090 | return rc; | |
4091 | ||
4092 | /* if we're trying to save power */ | |
4093 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { | |
4094 | /* wake up nic if it's powered down ... | |
4095 | * uCode will wake up, and interrupt us again, so next | |
4096 | * time we'll skip this part. */ | |
bb8c093b | 4097 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
4098 | |
4099 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
4100 | IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg); | |
bb8c093b | 4101 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
4102 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
4103 | return rc; | |
4104 | } | |
4105 | ||
4106 | /* restore this queue's parameters in nic hardware. */ | |
bb8c093b | 4107 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4108 | if (rc) |
4109 | return rc; | |
bb8c093b | 4110 | iwl3945_write_direct32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 4111 | txq->q.write_ptr | (txq_id << 8)); |
bb8c093b | 4112 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4113 | |
4114 | /* else not in power-save mode, uCode will never sleep when we're | |
4115 | * trying to tx (during RFKILL, we're not trying to tx). */ | |
4116 | } else | |
bb8c093b | 4117 | iwl3945_write32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 4118 | txq->q.write_ptr | (txq_id << 8)); |
b481de9c ZY |
4119 | |
4120 | txq->need_update = 0; | |
4121 | ||
4122 | return rc; | |
4123 | } | |
4124 | ||
c8b0e6e1 | 4125 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4126 | static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c | 4127 | { |
0795af57 JP |
4128 | DECLARE_MAC_BUF(mac); |
4129 | ||
b481de9c | 4130 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bb8c093b | 4131 | iwl3945_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
4132 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
4133 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
4134 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
4135 | le32_to_cpu(rxon->filter_flags)); | |
4136 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
4137 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
4138 | rxon->ofdm_basic_rates); | |
4139 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
0795af57 JP |
4140 | IWL_DEBUG_RADIO("u8[6] node_addr: %s\n", |
4141 | print_mac(mac, rxon->node_addr)); | |
4142 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n", | |
4143 | print_mac(mac, rxon->bssid_addr)); | |
b481de9c ZY |
4144 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
4145 | } | |
4146 | #endif | |
4147 | ||
bb8c093b | 4148 | static void iwl3945_enable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
4149 | { |
4150 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
4151 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
bb8c093b | 4152 | iwl3945_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
4153 | } |
4154 | ||
0359facc MA |
4155 | |
4156 | /* call this function to flush any scheduled tasklet */ | |
4157 | static inline void iwl_synchronize_irq(struct iwl3945_priv *priv) | |
4158 | { | |
4159 | /* wait to make sure we flush pedding tasklet*/ | |
4160 | synchronize_irq(priv->pci_dev->irq); | |
4161 | tasklet_kill(&priv->irq_tasklet); | |
4162 | } | |
4163 | ||
4164 | ||
bb8c093b | 4165 | static inline void iwl3945_disable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
4166 | { |
4167 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
4168 | ||
4169 | /* disable interrupts from uCode/NIC to host */ | |
bb8c093b | 4170 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
4171 | |
4172 | /* acknowledge/clear/reset any interrupts still pending | |
4173 | * from uCode or flow handler (Rx/Tx DMA) */ | |
bb8c093b CH |
4174 | iwl3945_write32(priv, CSR_INT, 0xffffffff); |
4175 | iwl3945_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
4176 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
4177 | } | |
4178 | ||
4179 | static const char *desc_lookup(int i) | |
4180 | { | |
4181 | switch (i) { | |
4182 | case 1: | |
4183 | return "FAIL"; | |
4184 | case 2: | |
4185 | return "BAD_PARAM"; | |
4186 | case 3: | |
4187 | return "BAD_CHECKSUM"; | |
4188 | case 4: | |
4189 | return "NMI_INTERRUPT"; | |
4190 | case 5: | |
4191 | return "SYSASSERT"; | |
4192 | case 6: | |
4193 | return "FATAL_ERROR"; | |
4194 | } | |
4195 | ||
4196 | return "UNKNOWN"; | |
4197 | } | |
4198 | ||
4199 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
4200 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
4201 | ||
bb8c093b | 4202 | static void iwl3945_dump_nic_error_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4203 | { |
4204 | u32 i; | |
4205 | u32 desc, time, count, base, data1; | |
4206 | u32 blink1, blink2, ilink1, ilink2; | |
4207 | int rc; | |
4208 | ||
4209 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
4210 | ||
bb8c093b | 4211 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4212 | IWL_ERROR("Not valid error log pointer 0x%08X\n", base); |
4213 | return; | |
4214 | } | |
4215 | ||
bb8c093b | 4216 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4217 | if (rc) { |
4218 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4219 | return; | |
4220 | } | |
4221 | ||
bb8c093b | 4222 | count = iwl3945_read_targ_mem(priv, base); |
b481de9c ZY |
4223 | |
4224 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
4225 | IWL_ERROR("Start IWL Error Log Dump:\n"); | |
2acae16e | 4226 | IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); |
b481de9c ZY |
4227 | } |
4228 | ||
4229 | IWL_ERROR("Desc Time asrtPC blink2 " | |
4230 | "ilink1 nmiPC Line\n"); | |
4231 | for (i = ERROR_START_OFFSET; | |
4232 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
4233 | i += ERROR_ELEM_SIZE) { | |
bb8c093b | 4234 | desc = iwl3945_read_targ_mem(priv, base + i); |
b481de9c | 4235 | time = |
bb8c093b | 4236 | iwl3945_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 4237 | blink1 = |
bb8c093b | 4238 | iwl3945_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 4239 | blink2 = |
bb8c093b | 4240 | iwl3945_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 4241 | ilink1 = |
bb8c093b | 4242 | iwl3945_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 4243 | ilink2 = |
bb8c093b | 4244 | iwl3945_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 4245 | data1 = |
bb8c093b | 4246 | iwl3945_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c ZY |
4247 | |
4248 | IWL_ERROR | |
4249 | ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
4250 | desc_lookup(desc), desc, time, blink1, blink2, | |
4251 | ilink1, ilink2, data1); | |
4252 | } | |
4253 | ||
bb8c093b | 4254 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4255 | |
4256 | } | |
4257 | ||
f58177b9 | 4258 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
4259 | |
4260 | /** | |
bb8c093b | 4261 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 4262 | * |
bb8c093b | 4263 | * NOTE: Must be called with iwl3945_grab_nic_access() already obtained! |
b481de9c | 4264 | */ |
bb8c093b | 4265 | static void iwl3945_print_event_log(struct iwl3945_priv *priv, u32 start_idx, |
b481de9c ZY |
4266 | u32 num_events, u32 mode) |
4267 | { | |
4268 | u32 i; | |
4269 | u32 base; /* SRAM byte address of event log header */ | |
4270 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
4271 | u32 ptr; /* SRAM byte address of log data */ | |
4272 | u32 ev, time, data; /* event log data */ | |
4273 | ||
4274 | if (num_events == 0) | |
4275 | return; | |
4276 | ||
4277 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
4278 | ||
4279 | if (mode == 0) | |
4280 | event_size = 2 * sizeof(u32); | |
4281 | else | |
4282 | event_size = 3 * sizeof(u32); | |
4283 | ||
4284 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
4285 | ||
4286 | /* "time" is actually "data" for mode 0 (no timestamp). | |
4287 | * place event id # at far right for easier visual parsing. */ | |
4288 | for (i = 0; i < num_events; i++) { | |
bb8c093b | 4289 | ev = iwl3945_read_targ_mem(priv, ptr); |
b481de9c | 4290 | ptr += sizeof(u32); |
bb8c093b | 4291 | time = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4292 | ptr += sizeof(u32); |
4293 | if (mode == 0) | |
4294 | IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */ | |
4295 | else { | |
bb8c093b | 4296 | data = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4297 | ptr += sizeof(u32); |
4298 | IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev); | |
4299 | } | |
4300 | } | |
4301 | } | |
4302 | ||
bb8c093b | 4303 | static void iwl3945_dump_nic_event_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4304 | { |
4305 | int rc; | |
4306 | u32 base; /* SRAM byte address of event log header */ | |
4307 | u32 capacity; /* event log capacity in # entries */ | |
4308 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
4309 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
4310 | u32 next_entry; /* index of next entry to be written by uCode */ | |
4311 | u32 size; /* # entries that we'll print */ | |
4312 | ||
4313 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 4314 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4315 | IWL_ERROR("Invalid event log pointer 0x%08X\n", base); |
4316 | return; | |
4317 | } | |
4318 | ||
bb8c093b | 4319 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4320 | if (rc) { |
4321 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4322 | return; | |
4323 | } | |
4324 | ||
4325 | /* event log header */ | |
bb8c093b CH |
4326 | capacity = iwl3945_read_targ_mem(priv, base); |
4327 | mode = iwl3945_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
4328 | num_wraps = iwl3945_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
4329 | next_entry = iwl3945_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c ZY |
4330 | |
4331 | size = num_wraps ? capacity : next_entry; | |
4332 | ||
4333 | /* bail out if nothing in log */ | |
4334 | if (size == 0) { | |
583fab37 | 4335 | IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); |
bb8c093b | 4336 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4337 | return; |
4338 | } | |
4339 | ||
583fab37 | 4340 | IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", |
b481de9c ZY |
4341 | size, num_wraps); |
4342 | ||
4343 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
4344 | * i.e the next one that uCode would fill. */ | |
4345 | if (num_wraps) | |
bb8c093b | 4346 | iwl3945_print_event_log(priv, next_entry, |
b481de9c ZY |
4347 | capacity - next_entry, mode); |
4348 | ||
4349 | /* (then/else) start at top of log */ | |
bb8c093b | 4350 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
b481de9c | 4351 | |
bb8c093b | 4352 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4353 | } |
4354 | ||
4355 | /** | |
bb8c093b | 4356 | * iwl3945_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 4357 | */ |
bb8c093b | 4358 | static void iwl3945_irq_handle_error(struct iwl3945_priv *priv) |
b481de9c | 4359 | { |
bb8c093b | 4360 | /* Set the FW error flag -- cleared on iwl3945_down */ |
b481de9c ZY |
4361 | set_bit(STATUS_FW_ERROR, &priv->status); |
4362 | ||
4363 | /* Cancel currently queued command. */ | |
4364 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
4365 | ||
c8b0e6e1 | 4366 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4367 | if (iwl3945_debug_level & IWL_DL_FW_ERRORS) { |
4368 | iwl3945_dump_nic_error_log(priv); | |
4369 | iwl3945_dump_nic_event_log(priv); | |
4370 | iwl3945_print_rx_config_cmd(&priv->staging_rxon); | |
b481de9c ZY |
4371 | } |
4372 | #endif | |
4373 | ||
4374 | wake_up_interruptible(&priv->wait_command_queue); | |
4375 | ||
4376 | /* Keep the restart process from trying to send host | |
4377 | * commands by clearing the INIT status bit */ | |
4378 | clear_bit(STATUS_READY, &priv->status); | |
4379 | ||
4380 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
4381 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS, | |
4382 | "Restarting adapter due to uCode error.\n"); | |
4383 | ||
bb8c093b | 4384 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4385 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
4386 | sizeof(priv->recovery_rxon)); | |
4387 | priv->error_recovering = 1; | |
4388 | } | |
4389 | queue_work(priv->workqueue, &priv->restart); | |
4390 | } | |
4391 | } | |
4392 | ||
bb8c093b | 4393 | static void iwl3945_error_recovery(struct iwl3945_priv *priv) |
b481de9c ZY |
4394 | { |
4395 | unsigned long flags; | |
4396 | ||
4397 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
4398 | sizeof(priv->staging_rxon)); | |
4399 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4400 | iwl3945_commit_rxon(priv); |
b481de9c | 4401 | |
bb8c093b | 4402 | iwl3945_add_station(priv, priv->bssid, 1, 0); |
b481de9c ZY |
4403 | |
4404 | spin_lock_irqsave(&priv->lock, flags); | |
4405 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
4406 | priv->error_recovering = 0; | |
4407 | spin_unlock_irqrestore(&priv->lock, flags); | |
4408 | } | |
4409 | ||
bb8c093b | 4410 | static void iwl3945_irq_tasklet(struct iwl3945_priv *priv) |
b481de9c ZY |
4411 | { |
4412 | u32 inta, handled = 0; | |
4413 | u32 inta_fh; | |
4414 | unsigned long flags; | |
c8b0e6e1 | 4415 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
4416 | u32 inta_mask; |
4417 | #endif | |
4418 | ||
4419 | spin_lock_irqsave(&priv->lock, flags); | |
4420 | ||
4421 | /* Ack/clear/reset pending uCode interrupts. | |
4422 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
4423 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
bb8c093b CH |
4424 | inta = iwl3945_read32(priv, CSR_INT); |
4425 | iwl3945_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
4426 | |
4427 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
4428 | * Any new interrupts that happen after this, either while we're | |
4429 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
bb8c093b CH |
4430 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); |
4431 | iwl3945_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 4432 | |
c8b0e6e1 | 4433 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4434 | if (iwl3945_debug_level & IWL_DL_ISR) { |
9fbab516 BC |
4435 | /* just for debug */ |
4436 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
b481de9c ZY |
4437 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
4438 | inta, inta_mask, inta_fh); | |
4439 | } | |
4440 | #endif | |
4441 | ||
4442 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
4443 | * atomic, make sure that inta covers all the interrupts that | |
4444 | * we've discovered, even if FH interrupt came in just after | |
4445 | * reading CSR_INT. */ | |
6f83eaa1 | 4446 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 4447 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 4448 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
4449 | inta |= CSR_INT_BIT_FH_TX; |
4450 | ||
4451 | /* Now service all interrupt bits discovered above. */ | |
4452 | if (inta & CSR_INT_BIT_HW_ERR) { | |
4453 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
4454 | ||
4455 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 4456 | iwl3945_disable_interrupts(priv); |
b481de9c | 4457 | |
bb8c093b | 4458 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4459 | |
4460 | handled |= CSR_INT_BIT_HW_ERR; | |
4461 | ||
4462 | spin_unlock_irqrestore(&priv->lock, flags); | |
4463 | ||
4464 | return; | |
4465 | } | |
4466 | ||
c8b0e6e1 | 4467 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4468 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
b481de9c | 4469 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
4470 | if (inta & CSR_INT_BIT_SCD) |
4471 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
4472 | "the frame/frames.\n"); | |
b481de9c ZY |
4473 | |
4474 | /* Alive notification via Rx interrupt will do the real work */ | |
4475 | if (inta & CSR_INT_BIT_ALIVE) | |
4476 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
4477 | } | |
4478 | #endif | |
4479 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 4480 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c ZY |
4481 | |
4482 | /* HW RF KILL switch toggled (4965 only) */ | |
4483 | if (inta & CSR_INT_BIT_RF_KILL) { | |
4484 | int hw_rf_kill = 0; | |
bb8c093b | 4485 | if (!(iwl3945_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
4486 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
4487 | hw_rf_kill = 1; | |
4488 | ||
4489 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR, | |
4490 | "RF_KILL bit toggled to %s.\n", | |
4491 | hw_rf_kill ? "disable radio":"enable radio"); | |
4492 | ||
4493 | /* Queue restart only if RF_KILL switch was set to "kill" | |
4494 | * when we loaded driver, and is now set to "enable". | |
4495 | * After we're Alive, RF_KILL gets handled by | |
3230455d | 4496 | * iwl3945_rx_card_state_notif() */ |
53e49093 ZY |
4497 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) { |
4498 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
b481de9c | 4499 | queue_work(priv->workqueue, &priv->restart); |
53e49093 | 4500 | } |
b481de9c ZY |
4501 | |
4502 | handled |= CSR_INT_BIT_RF_KILL; | |
4503 | } | |
4504 | ||
4505 | /* Chip got too hot and stopped itself (4965 only) */ | |
4506 | if (inta & CSR_INT_BIT_CT_KILL) { | |
4507 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
4508 | handled |= CSR_INT_BIT_CT_KILL; | |
4509 | } | |
4510 | ||
4511 | /* Error detected by uCode */ | |
4512 | if (inta & CSR_INT_BIT_SW_ERR) { | |
4513 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
4514 | inta); | |
bb8c093b | 4515 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4516 | handled |= CSR_INT_BIT_SW_ERR; |
4517 | } | |
4518 | ||
4519 | /* uCode wakes up after power-down sleep */ | |
4520 | if (inta & CSR_INT_BIT_WAKEUP) { | |
4521 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
bb8c093b CH |
4522 | iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq); |
4523 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]); | |
4524 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]); | |
4525 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]); | |
4526 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]); | |
4527 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]); | |
4528 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
4529 | |
4530 | handled |= CSR_INT_BIT_WAKEUP; | |
4531 | } | |
4532 | ||
4533 | /* All uCode command responses, including Tx command responses, | |
4534 | * Rx "responses" (frame-received notification), and other | |
4535 | * notifications from uCode come through here*/ | |
4536 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 4537 | iwl3945_rx_handle(priv); |
b481de9c ZY |
4538 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
4539 | } | |
4540 | ||
4541 | if (inta & CSR_INT_BIT_FH_TX) { | |
4542 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
4543 | ||
bb8c093b CH |
4544 | iwl3945_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
4545 | if (!iwl3945_grab_nic_access(priv)) { | |
4546 | iwl3945_write_direct32(priv, | |
b481de9c ZY |
4547 | FH_TCSR_CREDIT |
4548 | (ALM_FH_SRVC_CHNL), 0x0); | |
bb8c093b | 4549 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4550 | } |
4551 | handled |= CSR_INT_BIT_FH_TX; | |
4552 | } | |
4553 | ||
4554 | if (inta & ~handled) | |
4555 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
4556 | ||
4557 | if (inta & ~CSR_INI_SET_MASK) { | |
4558 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
4559 | inta & ~CSR_INI_SET_MASK); | |
4560 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
4561 | } | |
4562 | ||
4563 | /* Re-enable all interrupts */ | |
0359facc MA |
4564 | /* only Re-enable if disabled by irq */ |
4565 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4566 | iwl3945_enable_interrupts(priv); | |
b481de9c | 4567 | |
c8b0e6e1 | 4568 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4569 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
4570 | inta = iwl3945_read32(priv, CSR_INT); | |
4571 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
4572 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4573 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
4574 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
4575 | } | |
4576 | #endif | |
4577 | spin_unlock_irqrestore(&priv->lock, flags); | |
4578 | } | |
4579 | ||
bb8c093b | 4580 | static irqreturn_t iwl3945_isr(int irq, void *data) |
b481de9c | 4581 | { |
bb8c093b | 4582 | struct iwl3945_priv *priv = data; |
b481de9c ZY |
4583 | u32 inta, inta_mask; |
4584 | u32 inta_fh; | |
4585 | if (!priv) | |
4586 | return IRQ_NONE; | |
4587 | ||
4588 | spin_lock(&priv->lock); | |
4589 | ||
4590 | /* Disable (but don't clear!) interrupts here to avoid | |
4591 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
4592 | * If we have something to service, the tasklet will re-enable ints. | |
4593 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
bb8c093b CH |
4594 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); /* just for debug */ |
4595 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
4596 | |
4597 | /* Discover which interrupts are active/pending */ | |
bb8c093b CH |
4598 | inta = iwl3945_read32(priv, CSR_INT); |
4599 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4600 | |
4601 | /* Ignore interrupt if there's nothing in NIC to service. | |
4602 | * This may be due to IRQ shared with another device, | |
4603 | * or due to sporadic interrupts thrown from our NIC. */ | |
4604 | if (!inta && !inta_fh) { | |
4605 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
4606 | goto none; | |
4607 | } | |
4608 | ||
4609 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
4610 | /* Hardware disappeared */ | |
4611 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); | |
cb4da1a3 | 4612 | goto unplugged; |
b481de9c ZY |
4613 | } |
4614 | ||
4615 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
4616 | inta, inta_mask, inta_fh); | |
4617 | ||
25c03d8e JP |
4618 | inta &= ~CSR_INT_BIT_SCD; |
4619 | ||
bb8c093b | 4620 | /* iwl3945_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
4621 | if (likely(inta || inta_fh)) |
4622 | tasklet_schedule(&priv->irq_tasklet); | |
cb4da1a3 | 4623 | unplugged: |
b481de9c ZY |
4624 | spin_unlock(&priv->lock); |
4625 | ||
4626 | return IRQ_HANDLED; | |
4627 | ||
4628 | none: | |
4629 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
4630 | /* only Re-enable if disabled by irq */ |
4631 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4632 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
4633 | spin_unlock(&priv->lock); |
4634 | return IRQ_NONE; | |
4635 | } | |
4636 | ||
4637 | /************************** EEPROM BANDS **************************** | |
4638 | * | |
bb8c093b | 4639 | * The iwl3945_eeprom_band definitions below provide the mapping from the |
b481de9c ZY |
4640 | * EEPROM contents to the specific channel number supported for each |
4641 | * band. | |
4642 | * | |
bb8c093b | 4643 | * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3 |
b481de9c ZY |
4644 | * definition below maps to physical channel 42 in the 5.2GHz spectrum. |
4645 | * The specific geography and calibration information for that channel | |
4646 | * is contained in the eeprom map itself. | |
4647 | * | |
4648 | * During init, we copy the eeprom information and channel map | |
4649 | * information into priv->channel_info_24/52 and priv->channel_map_24/52 | |
4650 | * | |
4651 | * channel_map_24/52 provides the index in the channel_info array for a | |
4652 | * given channel. We have to have two separate maps as there is channel | |
4653 | * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and | |
4654 | * band_2 | |
4655 | * | |
4656 | * A value of 0xff stored in the channel_map indicates that the channel | |
4657 | * is not supported by the hardware at all. | |
4658 | * | |
4659 | * A value of 0xfe in the channel_map indicates that the channel is not | |
4660 | * valid for Tx with the current hardware. This means that | |
4661 | * while the system can tune and receive on a given channel, it may not | |
4662 | * be able to associate or transmit any frames on that | |
4663 | * channel. There is no corresponding channel information for that | |
4664 | * entry. | |
4665 | * | |
4666 | *********************************************************************/ | |
4667 | ||
4668 | /* 2.4 GHz */ | |
bb8c093b | 4669 | static const u8 iwl3945_eeprom_band_1[14] = { |
b481de9c ZY |
4670 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
4671 | }; | |
4672 | ||
4673 | /* 5.2 GHz bands */ | |
9fbab516 | 4674 | static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */ |
b481de9c ZY |
4675 | 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
4676 | }; | |
4677 | ||
9fbab516 | 4678 | static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */ |
b481de9c ZY |
4679 | 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
4680 | }; | |
4681 | ||
bb8c093b | 4682 | static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */ |
b481de9c ZY |
4683 | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
4684 | }; | |
4685 | ||
bb8c093b | 4686 | static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */ |
b481de9c ZY |
4687 | 145, 149, 153, 157, 161, 165 |
4688 | }; | |
4689 | ||
bb8c093b | 4690 | static void iwl3945_init_band_reference(const struct iwl3945_priv *priv, int band, |
b481de9c | 4691 | int *eeprom_ch_count, |
bb8c093b | 4692 | const struct iwl3945_eeprom_channel |
b481de9c ZY |
4693 | **eeprom_ch_info, |
4694 | const u8 **eeprom_ch_index) | |
4695 | { | |
4696 | switch (band) { | |
4697 | case 1: /* 2.4GHz band */ | |
bb8c093b | 4698 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1); |
b481de9c | 4699 | *eeprom_ch_info = priv->eeprom.band_1_channels; |
bb8c093b | 4700 | *eeprom_ch_index = iwl3945_eeprom_band_1; |
b481de9c | 4701 | break; |
9fbab516 | 4702 | case 2: /* 4.9GHz band */ |
bb8c093b | 4703 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2); |
b481de9c | 4704 | *eeprom_ch_info = priv->eeprom.band_2_channels; |
bb8c093b | 4705 | *eeprom_ch_index = iwl3945_eeprom_band_2; |
b481de9c ZY |
4706 | break; |
4707 | case 3: /* 5.2GHz band */ | |
bb8c093b | 4708 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3); |
b481de9c | 4709 | *eeprom_ch_info = priv->eeprom.band_3_channels; |
bb8c093b | 4710 | *eeprom_ch_index = iwl3945_eeprom_band_3; |
b481de9c | 4711 | break; |
9fbab516 | 4712 | case 4: /* 5.5GHz band */ |
bb8c093b | 4713 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4); |
b481de9c | 4714 | *eeprom_ch_info = priv->eeprom.band_4_channels; |
bb8c093b | 4715 | *eeprom_ch_index = iwl3945_eeprom_band_4; |
b481de9c | 4716 | break; |
9fbab516 | 4717 | case 5: /* 5.7GHz band */ |
bb8c093b | 4718 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5); |
b481de9c | 4719 | *eeprom_ch_info = priv->eeprom.band_5_channels; |
bb8c093b | 4720 | *eeprom_ch_index = iwl3945_eeprom_band_5; |
b481de9c ZY |
4721 | break; |
4722 | default: | |
4723 | BUG(); | |
4724 | return; | |
4725 | } | |
4726 | } | |
4727 | ||
6440adb5 BC |
4728 | /** |
4729 | * iwl3945_get_channel_info - Find driver's private channel info | |
4730 | * | |
4731 | * Based on band and channel number. | |
4732 | */ | |
bb8c093b | 4733 | const struct iwl3945_channel_info *iwl3945_get_channel_info(const struct iwl3945_priv *priv, |
8318d78a | 4734 | enum ieee80211_band band, u16 channel) |
b481de9c ZY |
4735 | { |
4736 | int i; | |
4737 | ||
8318d78a JB |
4738 | switch (band) { |
4739 | case IEEE80211_BAND_5GHZ: | |
b481de9c ZY |
4740 | for (i = 14; i < priv->channel_count; i++) { |
4741 | if (priv->channel_info[i].channel == channel) | |
4742 | return &priv->channel_info[i]; | |
4743 | } | |
4744 | break; | |
4745 | ||
8318d78a | 4746 | case IEEE80211_BAND_2GHZ: |
b481de9c ZY |
4747 | if (channel >= 1 && channel <= 14) |
4748 | return &priv->channel_info[channel - 1]; | |
4749 | break; | |
8318d78a JB |
4750 | case IEEE80211_NUM_BANDS: |
4751 | WARN_ON(1); | |
b481de9c ZY |
4752 | } |
4753 | ||
4754 | return NULL; | |
4755 | } | |
4756 | ||
4757 | #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ | |
4758 | ? # x " " : "") | |
4759 | ||
6440adb5 BC |
4760 | /** |
4761 | * iwl3945_init_channel_map - Set up driver's info for all possible channels | |
4762 | */ | |
bb8c093b | 4763 | static int iwl3945_init_channel_map(struct iwl3945_priv *priv) |
b481de9c ZY |
4764 | { |
4765 | int eeprom_ch_count = 0; | |
4766 | const u8 *eeprom_ch_index = NULL; | |
bb8c093b | 4767 | const struct iwl3945_eeprom_channel *eeprom_ch_info = NULL; |
b481de9c | 4768 | int band, ch; |
bb8c093b | 4769 | struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4770 | |
4771 | if (priv->channel_count) { | |
4772 | IWL_DEBUG_INFO("Channel map already initialized.\n"); | |
4773 | return 0; | |
4774 | } | |
4775 | ||
4776 | if (priv->eeprom.version < 0x2f) { | |
4777 | IWL_WARNING("Unsupported EEPROM version: 0x%04X\n", | |
4778 | priv->eeprom.version); | |
4779 | return -EINVAL; | |
4780 | } | |
4781 | ||
4782 | IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n"); | |
4783 | ||
4784 | priv->channel_count = | |
bb8c093b CH |
4785 | ARRAY_SIZE(iwl3945_eeprom_band_1) + |
4786 | ARRAY_SIZE(iwl3945_eeprom_band_2) + | |
4787 | ARRAY_SIZE(iwl3945_eeprom_band_3) + | |
4788 | ARRAY_SIZE(iwl3945_eeprom_band_4) + | |
4789 | ARRAY_SIZE(iwl3945_eeprom_band_5); | |
b481de9c ZY |
4790 | |
4791 | IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count); | |
4792 | ||
bb8c093b | 4793 | priv->channel_info = kzalloc(sizeof(struct iwl3945_channel_info) * |
b481de9c ZY |
4794 | priv->channel_count, GFP_KERNEL); |
4795 | if (!priv->channel_info) { | |
4796 | IWL_ERROR("Could not allocate channel_info\n"); | |
4797 | priv->channel_count = 0; | |
4798 | return -ENOMEM; | |
4799 | } | |
4800 | ||
4801 | ch_info = priv->channel_info; | |
4802 | ||
4803 | /* Loop through the 5 EEPROM bands adding them in order to the | |
4804 | * channel map we maintain (that contains additional information than | |
4805 | * what just in the EEPROM) */ | |
4806 | for (band = 1; band <= 5; band++) { | |
4807 | ||
bb8c093b | 4808 | iwl3945_init_band_reference(priv, band, &eeprom_ch_count, |
b481de9c ZY |
4809 | &eeprom_ch_info, &eeprom_ch_index); |
4810 | ||
4811 | /* Loop through each band adding each of the channels */ | |
4812 | for (ch = 0; ch < eeprom_ch_count; ch++) { | |
4813 | ch_info->channel = eeprom_ch_index[ch]; | |
8318d78a JB |
4814 | ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : |
4815 | IEEE80211_BAND_5GHZ; | |
b481de9c ZY |
4816 | |
4817 | /* permanently store EEPROM's channel regulatory flags | |
4818 | * and max power in channel info database. */ | |
4819 | ch_info->eeprom = eeprom_ch_info[ch]; | |
4820 | ||
4821 | /* Copy the run-time flags so they are there even on | |
4822 | * invalid channels */ | |
4823 | ch_info->flags = eeprom_ch_info[ch].flags; | |
4824 | ||
4825 | if (!(is_channel_valid(ch_info))) { | |
4826 | IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - " | |
4827 | "No traffic\n", | |
4828 | ch_info->channel, | |
4829 | ch_info->flags, | |
4830 | is_channel_a_band(ch_info) ? | |
4831 | "5.2" : "2.4"); | |
4832 | ch_info++; | |
4833 | continue; | |
4834 | } | |
4835 | ||
4836 | /* Initialize regulatory-based run-time data */ | |
4837 | ch_info->max_power_avg = ch_info->curr_txpow = | |
4838 | eeprom_ch_info[ch].max_power_avg; | |
4839 | ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; | |
4840 | ch_info->min_power = 0; | |
4841 | ||
fe7c4040 | 4842 | IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x" |
b481de9c ZY |
4843 | " %ddBm): Ad-Hoc %ssupported\n", |
4844 | ch_info->channel, | |
4845 | is_channel_a_band(ch_info) ? | |
4846 | "5.2" : "2.4", | |
8211ef78 | 4847 | CHECK_AND_PRINT(VALID), |
b481de9c ZY |
4848 | CHECK_AND_PRINT(IBSS), |
4849 | CHECK_AND_PRINT(ACTIVE), | |
4850 | CHECK_AND_PRINT(RADAR), | |
4851 | CHECK_AND_PRINT(WIDE), | |
b481de9c ZY |
4852 | CHECK_AND_PRINT(DFS), |
4853 | eeprom_ch_info[ch].flags, | |
4854 | eeprom_ch_info[ch].max_power_avg, | |
4855 | ((eeprom_ch_info[ch]. | |
4856 | flags & EEPROM_CHANNEL_IBSS) | |
4857 | && !(eeprom_ch_info[ch]. | |
4858 | flags & EEPROM_CHANNEL_RADAR)) | |
4859 | ? "" : "not "); | |
4860 | ||
4861 | /* Set the user_txpower_limit to the highest power | |
4862 | * supported by any channel */ | |
4863 | if (eeprom_ch_info[ch].max_power_avg > | |
4864 | priv->user_txpower_limit) | |
4865 | priv->user_txpower_limit = | |
4866 | eeprom_ch_info[ch].max_power_avg; | |
4867 | ||
4868 | ch_info++; | |
4869 | } | |
4870 | } | |
4871 | ||
6440adb5 | 4872 | /* Set up txpower settings in driver for all channels */ |
b481de9c ZY |
4873 | if (iwl3945_txpower_set_from_eeprom(priv)) |
4874 | return -EIO; | |
4875 | ||
4876 | return 0; | |
4877 | } | |
4878 | ||
849e0dce RC |
4879 | /* |
4880 | * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map | |
4881 | */ | |
4882 | static void iwl3945_free_channel_map(struct iwl3945_priv *priv) | |
4883 | { | |
4884 | kfree(priv->channel_info); | |
4885 | priv->channel_count = 0; | |
4886 | } | |
4887 | ||
b481de9c ZY |
4888 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
4889 | * sending probe req. This should be set long enough to hear probe responses | |
4890 | * from more than one AP. */ | |
4891 | #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
4892 | #define IWL_ACTIVE_DWELL_TIME_52 (10) | |
4893 | ||
4894 | /* For faster active scanning, scan will move to the next channel if fewer than | |
4895 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
4896 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
4897 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
4898 | * no other traffic). | |
4899 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
4900 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
4901 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */ | |
4902 | ||
4903 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
4904 | * Must be set longer than active dwell time. | |
4905 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
4906 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
4907 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
4908 | #define IWL_PASSIVE_DWELL_BASE (100) | |
4909 | #define IWL_CHANNEL_TUNE_TIME 5 | |
4910 | ||
8318d78a JB |
4911 | static inline u16 iwl3945_get_active_dwell_time(struct iwl3945_priv *priv, |
4912 | enum ieee80211_band band) | |
b481de9c | 4913 | { |
8318d78a | 4914 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
4915 | return IWL_ACTIVE_DWELL_TIME_52; |
4916 | else | |
4917 | return IWL_ACTIVE_DWELL_TIME_24; | |
4918 | } | |
4919 | ||
8318d78a JB |
4920 | static u16 iwl3945_get_passive_dwell_time(struct iwl3945_priv *priv, |
4921 | enum ieee80211_band band) | |
b481de9c | 4922 | { |
8318d78a JB |
4923 | u16 active = iwl3945_get_active_dwell_time(priv, band); |
4924 | u16 passive = (band == IEEE80211_BAND_2GHZ) ? | |
b481de9c ZY |
4925 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
4926 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
4927 | ||
bb8c093b | 4928 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4929 | /* If we're associated, we clamp the maximum passive |
4930 | * dwell time to be 98% of the beacon interval (minus | |
4931 | * 2 * channel tune time) */ | |
4932 | passive = priv->beacon_int; | |
4933 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
4934 | passive = IWL_PASSIVE_DWELL_BASE; | |
4935 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
4936 | } | |
4937 | ||
4938 | if (passive <= active) | |
4939 | passive = active + 1; | |
4940 | ||
4941 | return passive; | |
4942 | } | |
4943 | ||
8318d78a JB |
4944 | static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv, |
4945 | enum ieee80211_band band, | |
b481de9c | 4946 | u8 is_active, u8 direct_mask, |
bb8c093b | 4947 | struct iwl3945_scan_channel *scan_ch) |
b481de9c ZY |
4948 | { |
4949 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 4950 | const struct ieee80211_supported_band *sband; |
bb8c093b | 4951 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4952 | u16 passive_dwell = 0; |
4953 | u16 active_dwell = 0; | |
4954 | int added, i; | |
4955 | ||
8318d78a JB |
4956 | sband = iwl3945_get_band(priv, band); |
4957 | if (!sband) | |
b481de9c ZY |
4958 | return 0; |
4959 | ||
8318d78a | 4960 | channels = sband->channels; |
b481de9c | 4961 | |
8318d78a JB |
4962 | active_dwell = iwl3945_get_active_dwell_time(priv, band); |
4963 | passive_dwell = iwl3945_get_passive_dwell_time(priv, band); | |
b481de9c | 4964 | |
8318d78a | 4965 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
4966 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
4967 | continue; | |
4968 | ||
8318d78a | 4969 | scan_ch->channel = channels[i].hw_value; |
b481de9c | 4970 | |
8318d78a | 4971 | ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel); |
b481de9c | 4972 | if (!is_channel_valid(ch_info)) { |
66b5004d | 4973 | IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n", |
b481de9c ZY |
4974 | scan_ch->channel); |
4975 | continue; | |
4976 | } | |
4977 | ||
4978 | if (!is_active || is_channel_passive(ch_info) || | |
8318d78a | 4979 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) |
b481de9c ZY |
4980 | scan_ch->type = 0; /* passive */ |
4981 | else | |
4982 | scan_ch->type = 1; /* active */ | |
4983 | ||
4984 | if (scan_ch->type & 1) | |
4985 | scan_ch->type |= (direct_mask << 1); | |
4986 | ||
b481de9c ZY |
4987 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
4988 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
4989 | ||
9fbab516 | 4990 | /* Set txpower levels to defaults */ |
b481de9c ZY |
4991 | scan_ch->tpc.dsp_atten = 110; |
4992 | /* scan_pwr_info->tpc.dsp_atten; */ | |
4993 | ||
4994 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 4995 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
4996 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
4997 | else { | |
4998 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
4999 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 5000 | * power level: |
8a1b0245 | 5001 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
5002 | */ |
5003 | } | |
5004 | ||
5005 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
5006 | scan_ch->channel, | |
5007 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
5008 | (scan_ch->type & 1) ? | |
5009 | active_dwell : passive_dwell); | |
5010 | ||
5011 | scan_ch++; | |
5012 | added++; | |
5013 | } | |
5014 | ||
5015 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
5016 | return added; | |
5017 | } | |
5018 | ||
bb8c093b | 5019 | static void iwl3945_init_hw_rates(struct iwl3945_priv *priv, |
b481de9c ZY |
5020 | struct ieee80211_rate *rates) |
5021 | { | |
5022 | int i; | |
5023 | ||
5024 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
5025 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
5026 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
5027 | rates[i].hw_value_short = i; | |
5028 | rates[i].flags = 0; | |
5029 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
b481de9c | 5030 | /* |
8318d78a | 5031 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 5032 | */ |
bb8c093b | 5033 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 5034 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 5035 | } |
b481de9c ZY |
5036 | } |
5037 | } | |
5038 | ||
5039 | /** | |
bb8c093b | 5040 | * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom |
b481de9c | 5041 | */ |
bb8c093b | 5042 | static int iwl3945_init_geos(struct iwl3945_priv *priv) |
b481de9c | 5043 | { |
bb8c093b | 5044 | struct iwl3945_channel_info *ch; |
8211ef78 | 5045 | struct ieee80211_supported_band *sband; |
b481de9c ZY |
5046 | struct ieee80211_channel *channels; |
5047 | struct ieee80211_channel *geo_ch; | |
5048 | struct ieee80211_rate *rates; | |
5049 | int i = 0; | |
b481de9c | 5050 | |
8318d78a JB |
5051 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
5052 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
b481de9c ZY |
5053 | IWL_DEBUG_INFO("Geography modes already initialized.\n"); |
5054 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
5055 | return 0; | |
5056 | } | |
5057 | ||
b481de9c ZY |
5058 | channels = kzalloc(sizeof(struct ieee80211_channel) * |
5059 | priv->channel_count, GFP_KERNEL); | |
8318d78a | 5060 | if (!channels) |
b481de9c | 5061 | return -ENOMEM; |
b481de9c | 5062 | |
8211ef78 | 5063 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), |
b481de9c ZY |
5064 | GFP_KERNEL); |
5065 | if (!rates) { | |
b481de9c ZY |
5066 | kfree(channels); |
5067 | return -ENOMEM; | |
5068 | } | |
5069 | ||
b481de9c | 5070 | /* 5.2GHz channels start after the 2.4GHz channels */ |
8211ef78 TW |
5071 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
5072 | sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)]; | |
5073 | /* just OFDM */ | |
5074 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
5075 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
5076 | ||
5077 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
5078 | sband->channels = channels; | |
5079 | /* OFDM & CCK */ | |
5080 | sband->bitrates = rates; | |
5081 | sband->n_bitrates = IWL_RATE_COUNT; | |
b481de9c ZY |
5082 | |
5083 | priv->ieee_channels = channels; | |
5084 | priv->ieee_rates = rates; | |
5085 | ||
bb8c093b | 5086 | iwl3945_init_hw_rates(priv, rates); |
b481de9c | 5087 | |
8211ef78 | 5088 | for (i = 0; i < priv->channel_count; i++) { |
b481de9c ZY |
5089 | ch = &priv->channel_info[i]; |
5090 | ||
8211ef78 TW |
5091 | /* FIXME: might be removed if scan is OK*/ |
5092 | if (!is_channel_valid(ch)) | |
b481de9c | 5093 | continue; |
b481de9c ZY |
5094 | |
5095 | if (is_channel_a_band(ch)) | |
8211ef78 | 5096 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
8318d78a | 5097 | else |
8211ef78 | 5098 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
b481de9c | 5099 | |
8211ef78 TW |
5100 | geo_ch = &sband->channels[sband->n_channels++]; |
5101 | ||
5102 | geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel); | |
8318d78a JB |
5103 | geo_ch->max_power = ch->max_power_avg; |
5104 | geo_ch->max_antenna_gain = 0xff; | |
7b72304d | 5105 | geo_ch->hw_value = ch->channel; |
b481de9c ZY |
5106 | |
5107 | if (is_channel_valid(ch)) { | |
8318d78a JB |
5108 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
5109 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
b481de9c | 5110 | |
8318d78a JB |
5111 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
5112 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
b481de9c ZY |
5113 | |
5114 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
8318d78a | 5115 | geo_ch->flags |= IEEE80211_CHAN_RADAR; |
b481de9c ZY |
5116 | |
5117 | if (ch->max_power_avg > priv->max_channel_txpower_limit) | |
5118 | priv->max_channel_txpower_limit = | |
5119 | ch->max_power_avg; | |
8211ef78 | 5120 | } else { |
8318d78a | 5121 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
8211ef78 TW |
5122 | } |
5123 | ||
5124 | /* Save flags for reg domain usage */ | |
5125 | geo_ch->orig_flags = geo_ch->flags; | |
5126 | ||
5127 | IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n", | |
5128 | ch->channel, geo_ch->center_freq, | |
5129 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
5130 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
5131 | "restricted" : "valid", | |
5132 | geo_ch->flags); | |
b481de9c ZY |
5133 | } |
5134 | ||
82b9a121 TW |
5135 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
5136 | priv->cfg->sku & IWL_SKU_A) { | |
b481de9c ZY |
5137 | printk(KERN_INFO DRV_NAME |
5138 | ": Incorrectly detected BG card as ABG. Please send " | |
5139 | "your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
5140 | priv->pci_dev->device, priv->pci_dev->subsystem_device); | |
82b9a121 | 5141 | priv->cfg->sku &= ~IWL_SKU_A; |
b481de9c ZY |
5142 | } |
5143 | ||
5144 | printk(KERN_INFO DRV_NAME | |
5145 | ": Tunable channels: %d 802.11bg, %d 802.11a channels\n", | |
8318d78a JB |
5146 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
5147 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
b481de9c | 5148 | |
e0e0a67e JL |
5149 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
5150 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
5151 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
5152 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
5153 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
5154 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
b481de9c | 5155 | |
b481de9c ZY |
5156 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
5157 | ||
5158 | return 0; | |
5159 | } | |
5160 | ||
849e0dce RC |
5161 | /* |
5162 | * iwl3945_free_geos - undo allocations in iwl3945_init_geos | |
5163 | */ | |
5164 | static void iwl3945_free_geos(struct iwl3945_priv *priv) | |
5165 | { | |
849e0dce RC |
5166 | kfree(priv->ieee_channels); |
5167 | kfree(priv->ieee_rates); | |
5168 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
5169 | } | |
5170 | ||
b481de9c ZY |
5171 | /****************************************************************************** |
5172 | * | |
5173 | * uCode download functions | |
5174 | * | |
5175 | ******************************************************************************/ | |
5176 | ||
bb8c093b | 5177 | static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv *priv) |
b481de9c | 5178 | { |
98c92211 TW |
5179 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
5180 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
5181 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
5182 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
5183 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
5184 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
5185 | } |
5186 | ||
5187 | /** | |
bb8c093b | 5188 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5189 | * looking at all data. |
5190 | */ | |
bb8c093b | 5191 | static int iwl3945_verify_inst_full(struct iwl3945_priv *priv, __le32 * image, u32 len) |
b481de9c ZY |
5192 | { |
5193 | u32 val; | |
5194 | u32 save_len = len; | |
5195 | int rc = 0; | |
5196 | u32 errcnt; | |
5197 | ||
5198 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5199 | ||
bb8c093b | 5200 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5201 | if (rc) |
5202 | return rc; | |
5203 | ||
bb8c093b | 5204 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND); |
b481de9c ZY |
5205 | |
5206 | errcnt = 0; | |
5207 | for (; len > 0; len -= sizeof(u32), image++) { | |
5208 | /* read data comes through single port, auto-incr addr */ | |
5209 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5210 | * if IWL_DL_IO is set */ | |
bb8c093b | 5211 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5212 | if (val != le32_to_cpu(*image)) { |
5213 | IWL_ERROR("uCode INST section is invalid at " | |
5214 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5215 | save_len - len, val, le32_to_cpu(*image)); | |
5216 | rc = -EIO; | |
5217 | errcnt++; | |
5218 | if (errcnt >= 20) | |
5219 | break; | |
5220 | } | |
5221 | } | |
5222 | ||
bb8c093b | 5223 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5224 | |
5225 | if (!errcnt) | |
bc434dd2 | 5226 | IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n"); |
b481de9c ZY |
5227 | |
5228 | return rc; | |
5229 | } | |
5230 | ||
5231 | ||
5232 | /** | |
bb8c093b | 5233 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5234 | * using sample data 100 bytes apart. If these sample points are good, |
5235 | * it's a pretty good bet that everything between them is good, too. | |
5236 | */ | |
bb8c093b | 5237 | static int iwl3945_verify_inst_sparse(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5238 | { |
5239 | u32 val; | |
5240 | int rc = 0; | |
5241 | u32 errcnt = 0; | |
5242 | u32 i; | |
5243 | ||
5244 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5245 | ||
bb8c093b | 5246 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5247 | if (rc) |
5248 | return rc; | |
5249 | ||
5250 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
5251 | /* read data comes through single port, auto-incr addr */ | |
5252 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5253 | * if IWL_DL_IO is set */ | |
bb8c093b | 5254 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
b481de9c | 5255 | i + RTC_INST_LOWER_BOUND); |
bb8c093b | 5256 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5257 | if (val != le32_to_cpu(*image)) { |
5258 | #if 0 /* Enable this if you want to see details */ | |
5259 | IWL_ERROR("uCode INST section is invalid at " | |
5260 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5261 | i, val, *image); | |
5262 | #endif | |
5263 | rc = -EIO; | |
5264 | errcnt++; | |
5265 | if (errcnt >= 3) | |
5266 | break; | |
5267 | } | |
5268 | } | |
5269 | ||
bb8c093b | 5270 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5271 | |
5272 | return rc; | |
5273 | } | |
5274 | ||
5275 | ||
5276 | /** | |
bb8c093b | 5277 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
5278 | * and verify its contents |
5279 | */ | |
bb8c093b | 5280 | static int iwl3945_verify_ucode(struct iwl3945_priv *priv) |
b481de9c ZY |
5281 | { |
5282 | __le32 *image; | |
5283 | u32 len; | |
5284 | int rc = 0; | |
5285 | ||
5286 | /* Try bootstrap */ | |
5287 | image = (__le32 *)priv->ucode_boot.v_addr; | |
5288 | len = priv->ucode_boot.len; | |
bb8c093b | 5289 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5290 | if (rc == 0) { |
5291 | IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n"); | |
5292 | return 0; | |
5293 | } | |
5294 | ||
5295 | /* Try initialize */ | |
5296 | image = (__le32 *)priv->ucode_init.v_addr; | |
5297 | len = priv->ucode_init.len; | |
bb8c093b | 5298 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5299 | if (rc == 0) { |
5300 | IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n"); | |
5301 | return 0; | |
5302 | } | |
5303 | ||
5304 | /* Try runtime/protocol */ | |
5305 | image = (__le32 *)priv->ucode_code.v_addr; | |
5306 | len = priv->ucode_code.len; | |
bb8c093b | 5307 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5308 | if (rc == 0) { |
5309 | IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n"); | |
5310 | return 0; | |
5311 | } | |
5312 | ||
5313 | IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); | |
5314 | ||
9fbab516 BC |
5315 | /* Since nothing seems to match, show first several data entries in |
5316 | * instruction SRAM, so maybe visual inspection will give a clue. | |
5317 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
5318 | image = (__le32 *)priv->ucode_boot.v_addr; |
5319 | len = priv->ucode_boot.len; | |
bb8c093b | 5320 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
5321 | |
5322 | return rc; | |
5323 | } | |
5324 | ||
5325 | ||
5326 | /* check contents of special bootstrap uCode SRAM */ | |
bb8c093b | 5327 | static int iwl3945_verify_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5328 | { |
5329 | __le32 *image = priv->ucode_boot.v_addr; | |
5330 | u32 len = priv->ucode_boot.len; | |
5331 | u32 reg; | |
5332 | u32 val; | |
5333 | ||
5334 | IWL_DEBUG_INFO("Begin verify bsm\n"); | |
5335 | ||
5336 | /* verify BSM SRAM contents */ | |
bb8c093b | 5337 | val = iwl3945_read_prph(priv, BSM_WR_DWCOUNT_REG); |
b481de9c ZY |
5338 | for (reg = BSM_SRAM_LOWER_BOUND; |
5339 | reg < BSM_SRAM_LOWER_BOUND + len; | |
5340 | reg += sizeof(u32), image ++) { | |
bb8c093b | 5341 | val = iwl3945_read_prph(priv, reg); |
b481de9c ZY |
5342 | if (val != le32_to_cpu(*image)) { |
5343 | IWL_ERROR("BSM uCode verification failed at " | |
5344 | "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", | |
5345 | BSM_SRAM_LOWER_BOUND, | |
5346 | reg - BSM_SRAM_LOWER_BOUND, len, | |
5347 | val, le32_to_cpu(*image)); | |
5348 | return -EIO; | |
5349 | } | |
5350 | } | |
5351 | ||
5352 | IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n"); | |
5353 | ||
5354 | return 0; | |
5355 | } | |
5356 | ||
5357 | /** | |
bb8c093b | 5358 | * iwl3945_load_bsm - Load bootstrap instructions |
b481de9c ZY |
5359 | * |
5360 | * BSM operation: | |
5361 | * | |
5362 | * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program | |
5363 | * in special SRAM that does not power down during RFKILL. When powering back | |
5364 | * up after power-saving sleeps (or during initial uCode load), the BSM loads | |
5365 | * the bootstrap program into the on-board processor, and starts it. | |
5366 | * | |
5367 | * The bootstrap program loads (via DMA) instructions and data for a new | |
5368 | * program from host DRAM locations indicated by the host driver in the | |
5369 | * BSM_DRAM_* registers. Once the new program is loaded, it starts | |
5370 | * automatically. | |
5371 | * | |
5372 | * When initializing the NIC, the host driver points the BSM to the | |
5373 | * "initialize" uCode image. This uCode sets up some internal data, then | |
5374 | * notifies host via "initialize alive" that it is complete. | |
5375 | * | |
5376 | * The host then replaces the BSM_DRAM_* pointer values to point to the | |
5377 | * normal runtime uCode instructions and a backup uCode data cache buffer | |
5378 | * (filled initially with starting data values for the on-board processor), | |
5379 | * then triggers the "initialize" uCode to load and launch the runtime uCode, | |
5380 | * which begins normal operation. | |
5381 | * | |
5382 | * When doing a power-save shutdown, runtime uCode saves data SRAM into | |
5383 | * the backup data cache in DRAM before SRAM is powered down. | |
5384 | * | |
5385 | * When powering back up, the BSM loads the bootstrap program. This reloads | |
5386 | * the runtime uCode instructions and the backup data cache into SRAM, | |
5387 | * and re-launches the runtime uCode from where it left off. | |
5388 | */ | |
bb8c093b | 5389 | static int iwl3945_load_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5390 | { |
5391 | __le32 *image = priv->ucode_boot.v_addr; | |
5392 | u32 len = priv->ucode_boot.len; | |
5393 | dma_addr_t pinst; | |
5394 | dma_addr_t pdata; | |
5395 | u32 inst_len; | |
5396 | u32 data_len; | |
5397 | int rc; | |
5398 | int i; | |
5399 | u32 done; | |
5400 | u32 reg_offset; | |
5401 | ||
5402 | IWL_DEBUG_INFO("Begin load bsm\n"); | |
5403 | ||
5404 | /* make sure bootstrap program is no larger than BSM's SRAM size */ | |
5405 | if (len > IWL_MAX_BSM_SIZE) | |
5406 | return -EINVAL; | |
5407 | ||
5408 | /* Tell bootstrap uCode where to find the "Initialize" uCode | |
9fbab516 | 5409 | * in host DRAM ... host DRAM physical address bits 31:0 for 3945. |
bb8c093b | 5410 | * NOTE: iwl3945_initialize_alive_start() will replace these values, |
b481de9c ZY |
5411 | * after the "initialize" uCode has run, to point to |
5412 | * runtime/protocol instructions and backup data cache. */ | |
5413 | pinst = priv->ucode_init.p_addr; | |
5414 | pdata = priv->ucode_init_data.p_addr; | |
5415 | inst_len = priv->ucode_init.len; | |
5416 | data_len = priv->ucode_init_data.len; | |
5417 | ||
bb8c093b | 5418 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5419 | if (rc) |
5420 | return rc; | |
5421 | ||
bb8c093b CH |
5422 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5423 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5424 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); | |
5425 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); | |
b481de9c ZY |
5426 | |
5427 | /* Fill BSM memory with bootstrap instructions */ | |
5428 | for (reg_offset = BSM_SRAM_LOWER_BOUND; | |
5429 | reg_offset < BSM_SRAM_LOWER_BOUND + len; | |
5430 | reg_offset += sizeof(u32), image++) | |
bb8c093b | 5431 | _iwl3945_write_prph(priv, reg_offset, |
b481de9c ZY |
5432 | le32_to_cpu(*image)); |
5433 | ||
bb8c093b | 5434 | rc = iwl3945_verify_bsm(priv); |
b481de9c | 5435 | if (rc) { |
bb8c093b | 5436 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5437 | return rc; |
5438 | } | |
5439 | ||
5440 | /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ | |
bb8c093b CH |
5441 | iwl3945_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); |
5442 | iwl3945_write_prph(priv, BSM_WR_MEM_DST_REG, | |
b481de9c | 5443 | RTC_INST_LOWER_BOUND); |
bb8c093b | 5444 | iwl3945_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); |
b481de9c ZY |
5445 | |
5446 | /* Load bootstrap code into instruction SRAM now, | |
5447 | * to prepare to load "initialize" uCode */ | |
bb8c093b | 5448 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5449 | BSM_WR_CTRL_REG_BIT_START); |
5450 | ||
5451 | /* Wait for load of bootstrap uCode to finish */ | |
5452 | for (i = 0; i < 100; i++) { | |
bb8c093b | 5453 | done = iwl3945_read_prph(priv, BSM_WR_CTRL_REG); |
b481de9c ZY |
5454 | if (!(done & BSM_WR_CTRL_REG_BIT_START)) |
5455 | break; | |
5456 | udelay(10); | |
5457 | } | |
5458 | if (i < 100) | |
5459 | IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i); | |
5460 | else { | |
5461 | IWL_ERROR("BSM write did not complete!\n"); | |
5462 | return -EIO; | |
5463 | } | |
5464 | ||
5465 | /* Enable future boot loads whenever power management unit triggers it | |
5466 | * (e.g. when powering back up after power-save shutdown) */ | |
bb8c093b | 5467 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5468 | BSM_WR_CTRL_REG_BIT_START_EN); |
5469 | ||
bb8c093b | 5470 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5471 | |
5472 | return 0; | |
5473 | } | |
5474 | ||
bb8c093b | 5475 | static void iwl3945_nic_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5476 | { |
5477 | /* Remove all resets to allow NIC to operate */ | |
bb8c093b | 5478 | iwl3945_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
5479 | } |
5480 | ||
5481 | /** | |
bb8c093b | 5482 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
5483 | * |
5484 | * Copy into buffers for card to fetch via bus-mastering | |
5485 | */ | |
bb8c093b | 5486 | static int iwl3945_read_ucode(struct iwl3945_priv *priv) |
b481de9c | 5487 | { |
bb8c093b | 5488 | struct iwl3945_ucode *ucode; |
90e759d1 | 5489 | int ret = 0; |
b481de9c ZY |
5490 | const struct firmware *ucode_raw; |
5491 | /* firmware file name contains uCode/driver compatibility version */ | |
4bf775cd | 5492 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
5493 | u8 *src; |
5494 | size_t len; | |
5495 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
5496 | ||
5497 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
5498 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
5499 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
5500 | if (ret < 0) { | |
5501 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
5502 | name, ret); | |
b481de9c ZY |
5503 | goto error; |
5504 | } | |
5505 | ||
5506 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
5507 | name, ucode_raw->size); | |
5508 | ||
5509 | /* Make sure that we got at least our header! */ | |
5510 | if (ucode_raw->size < sizeof(*ucode)) { | |
5511 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 5512 | ret = -EINVAL; |
b481de9c ZY |
5513 | goto err_release; |
5514 | } | |
5515 | ||
5516 | /* Data from ucode file: header followed by uCode images */ | |
5517 | ucode = (void *)ucode_raw->data; | |
5518 | ||
5519 | ver = le32_to_cpu(ucode->ver); | |
5520 | inst_size = le32_to_cpu(ucode->inst_size); | |
5521 | data_size = le32_to_cpu(ucode->data_size); | |
5522 | init_size = le32_to_cpu(ucode->init_size); | |
5523 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
5524 | boot_size = le32_to_cpu(ucode->boot_size); | |
5525 | ||
5526 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
bc434dd2 IS |
5527 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size); |
5528 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size); | |
5529 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size); | |
5530 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size); | |
5531 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size); | |
b481de9c ZY |
5532 | |
5533 | /* Verify size of file vs. image size info in file's header */ | |
5534 | if (ucode_raw->size < sizeof(*ucode) + | |
5535 | inst_size + data_size + init_size + | |
5536 | init_data_size + boot_size) { | |
5537 | ||
5538 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
5539 | (int)ucode_raw->size); | |
90e759d1 | 5540 | ret = -EINVAL; |
b481de9c ZY |
5541 | goto err_release; |
5542 | } | |
5543 | ||
5544 | /* Verify that uCode images will fit in card's SRAM */ | |
5545 | if (inst_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5546 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
5547 | inst_size); | |
5548 | ret = -EINVAL; | |
b481de9c ZY |
5549 | goto err_release; |
5550 | } | |
5551 | ||
5552 | if (data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5553 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
5554 | data_size); | |
5555 | ret = -EINVAL; | |
b481de9c ZY |
5556 | goto err_release; |
5557 | } | |
5558 | if (init_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5559 | IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n", |
5560 | init_size); | |
5561 | ret = -EINVAL; | |
b481de9c ZY |
5562 | goto err_release; |
5563 | } | |
5564 | if (init_data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5565 | IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n", |
5566 | init_data_size); | |
5567 | ret = -EINVAL; | |
b481de9c ZY |
5568 | goto err_release; |
5569 | } | |
5570 | if (boot_size > IWL_MAX_BSM_SIZE) { | |
90e759d1 TW |
5571 | IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n", |
5572 | boot_size); | |
5573 | ret = -EINVAL; | |
b481de9c ZY |
5574 | goto err_release; |
5575 | } | |
5576 | ||
5577 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
5578 | ||
5579 | /* Runtime instructions and 2 copies of data: | |
5580 | * 1) unmodified from disk | |
5581 | * 2) backup cache for save/restore during power-downs */ | |
5582 | priv->ucode_code.len = inst_size; | |
98c92211 | 5583 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
5584 | |
5585 | priv->ucode_data.len = data_size; | |
98c92211 | 5586 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
5587 | |
5588 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 5589 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 5590 | |
90e759d1 TW |
5591 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
5592 | !priv->ucode_data_backup.v_addr) | |
5593 | goto err_pci_alloc; | |
b481de9c ZY |
5594 | |
5595 | /* Initialization instructions and data */ | |
90e759d1 TW |
5596 | if (init_size && init_data_size) { |
5597 | priv->ucode_init.len = init_size; | |
98c92211 | 5598 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
5599 | |
5600 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 5601 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
5602 | |
5603 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
5604 | goto err_pci_alloc; | |
5605 | } | |
b481de9c ZY |
5606 | |
5607 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
5608 | if (boot_size) { |
5609 | priv->ucode_boot.len = boot_size; | |
98c92211 | 5610 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 5611 | |
90e759d1 TW |
5612 | if (!priv->ucode_boot.v_addr) |
5613 | goto err_pci_alloc; | |
5614 | } | |
b481de9c ZY |
5615 | |
5616 | /* Copy images into buffers for card's bus-master reads ... */ | |
5617 | ||
5618 | /* Runtime instructions (first block of data in file) */ | |
5619 | src = &ucode->data[0]; | |
5620 | len = priv->ucode_code.len; | |
90e759d1 | 5621 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
5622 | memcpy(priv->ucode_code.v_addr, src, len); |
5623 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
5624 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
5625 | ||
5626 | /* Runtime data (2nd block) | |
bb8c093b | 5627 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
b481de9c ZY |
5628 | src = &ucode->data[inst_size]; |
5629 | len = priv->ucode_data.len; | |
90e759d1 | 5630 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
5631 | memcpy(priv->ucode_data.v_addr, src, len); |
5632 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
5633 | ||
5634 | /* Initialization instructions (3rd block) */ | |
5635 | if (init_size) { | |
5636 | src = &ucode->data[inst_size + data_size]; | |
5637 | len = priv->ucode_init.len; | |
90e759d1 TW |
5638 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
5639 | len); | |
b481de9c ZY |
5640 | memcpy(priv->ucode_init.v_addr, src, len); |
5641 | } | |
5642 | ||
5643 | /* Initialization data (4th block) */ | |
5644 | if (init_data_size) { | |
5645 | src = &ucode->data[inst_size + data_size + init_size]; | |
5646 | len = priv->ucode_init_data.len; | |
5647 | IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n", | |
5648 | (int)len); | |
5649 | memcpy(priv->ucode_init_data.v_addr, src, len); | |
5650 | } | |
5651 | ||
5652 | /* Bootstrap instructions (5th block) */ | |
5653 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
5654 | len = priv->ucode_boot.len; | |
5655 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n", | |
5656 | (int)len); | |
5657 | memcpy(priv->ucode_boot.v_addr, src, len); | |
5658 | ||
5659 | /* We have our copies now, allow OS release its copies */ | |
5660 | release_firmware(ucode_raw); | |
5661 | return 0; | |
5662 | ||
5663 | err_pci_alloc: | |
5664 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 5665 | ret = -ENOMEM; |
bb8c093b | 5666 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
5667 | |
5668 | err_release: | |
5669 | release_firmware(ucode_raw); | |
5670 | ||
5671 | error: | |
90e759d1 | 5672 | return ret; |
b481de9c ZY |
5673 | } |
5674 | ||
5675 | ||
5676 | /** | |
bb8c093b | 5677 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
5678 | * |
5679 | * Tell initialization uCode where to find runtime uCode. | |
5680 | * | |
5681 | * BSM registers initially contain pointers to initialization uCode. | |
5682 | * We need to replace them to load runtime uCode inst and data, | |
5683 | * and to save runtime data when powering down. | |
5684 | */ | |
bb8c093b | 5685 | static int iwl3945_set_ucode_ptrs(struct iwl3945_priv *priv) |
b481de9c ZY |
5686 | { |
5687 | dma_addr_t pinst; | |
5688 | dma_addr_t pdata; | |
5689 | int rc = 0; | |
5690 | unsigned long flags; | |
5691 | ||
5692 | /* bits 31:0 for 3945 */ | |
5693 | pinst = priv->ucode_code.p_addr; | |
5694 | pdata = priv->ucode_data_backup.p_addr; | |
5695 | ||
5696 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5697 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5698 | if (rc) { |
5699 | spin_unlock_irqrestore(&priv->lock, flags); | |
5700 | return rc; | |
5701 | } | |
5702 | ||
5703 | /* Tell bootstrap uCode where to find image to load */ | |
bb8c093b CH |
5704 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5705 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5706 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
5707 | priv->ucode_data.len); |
5708 | ||
5709 | /* Inst bytecount must be last to set up, bit 31 signals uCode | |
5710 | * that all new ptr/size info is in place */ | |
bb8c093b | 5711 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
5712 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
5713 | ||
bb8c093b | 5714 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5715 | |
5716 | spin_unlock_irqrestore(&priv->lock, flags); | |
5717 | ||
5718 | IWL_DEBUG_INFO("Runtime uCode pointers are set.\n"); | |
5719 | ||
5720 | return rc; | |
5721 | } | |
5722 | ||
5723 | /** | |
bb8c093b | 5724 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
5725 | * |
5726 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
5727 | * | |
b481de9c | 5728 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 5729 | */ |
bb8c093b | 5730 | static void iwl3945_init_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5731 | { |
5732 | /* Check alive response for "valid" sign from uCode */ | |
5733 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
5734 | /* We had an error bringing up the hardware, so take it | |
5735 | * all the way back down so we can try again */ | |
5736 | IWL_DEBUG_INFO("Initialize Alive failed.\n"); | |
5737 | goto restart; | |
5738 | } | |
5739 | ||
5740 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
5741 | * This is a paranoid check, because we would not have gotten the | |
5742 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 5743 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5744 | /* Runtime instruction load was bad; |
5745 | * take it all the way back down so we can try again */ | |
5746 | IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n"); | |
5747 | goto restart; | |
5748 | } | |
5749 | ||
5750 | /* Send pointers to protocol/runtime uCode image ... init code will | |
5751 | * load and launch runtime uCode, which will send us another "Alive" | |
5752 | * notification. */ | |
5753 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
bb8c093b | 5754 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
5755 | /* Runtime instruction load won't happen; |
5756 | * take it all the way back down so we can try again */ | |
5757 | IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n"); | |
5758 | goto restart; | |
5759 | } | |
5760 | return; | |
5761 | ||
5762 | restart: | |
5763 | queue_work(priv->workqueue, &priv->restart); | |
5764 | } | |
5765 | ||
5766 | ||
5767 | /** | |
bb8c093b | 5768 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 5769 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 5770 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 5771 | */ |
bb8c093b | 5772 | static void iwl3945_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5773 | { |
5774 | int rc = 0; | |
5775 | int thermal_spin = 0; | |
5776 | u32 rfkill; | |
5777 | ||
5778 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
5779 | ||
5780 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
5781 | /* We had an error bringing up the hardware, so take it | |
5782 | * all the way back down so we can try again */ | |
5783 | IWL_DEBUG_INFO("Alive failed.\n"); | |
5784 | goto restart; | |
5785 | } | |
5786 | ||
5787 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
5788 | * This is a paranoid check, because we would not have gotten the | |
5789 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 5790 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5791 | /* Runtime instruction load was bad; |
5792 | * take it all the way back down so we can try again */ | |
5793 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
5794 | goto restart; | |
5795 | } | |
5796 | ||
bb8c093b | 5797 | iwl3945_clear_stations_table(priv); |
b481de9c | 5798 | |
bb8c093b | 5799 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5800 | if (rc) { |
5801 | IWL_WARNING("Can not read rfkill status from adapter\n"); | |
5802 | return; | |
5803 | } | |
5804 | ||
bb8c093b | 5805 | rfkill = iwl3945_read_prph(priv, APMG_RFKILL_REG); |
b481de9c | 5806 | IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill); |
bb8c093b | 5807 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5808 | |
5809 | if (rfkill & 0x1) { | |
5810 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
5811 | /* if rfkill is not on, then wait for thermal | |
5812 | * sensor in adapter to kick in */ | |
bb8c093b | 5813 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
5814 | thermal_spin++; |
5815 | udelay(10); | |
5816 | } | |
5817 | ||
5818 | if (thermal_spin) | |
5819 | IWL_DEBUG_INFO("Thermal calibration took %dus\n", | |
5820 | thermal_spin * 10); | |
5821 | } else | |
5822 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5823 | ||
9fbab516 | 5824 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
5825 | set_bit(STATUS_ALIVE, &priv->status); |
5826 | ||
5827 | /* Clear out the uCode error bit if it is set */ | |
5828 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
5829 | ||
bb8c093b | 5830 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
5831 | return; |
5832 | ||
36d6825b | 5833 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
5834 | |
5835 | priv->active_rate = priv->rates_mask; | |
5836 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
5837 | ||
bb8c093b | 5838 | iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode)); |
b481de9c | 5839 | |
bb8c093b CH |
5840 | if (iwl3945_is_associated(priv)) { |
5841 | struct iwl3945_rxon_cmd *active_rxon = | |
5842 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); | |
b481de9c ZY |
5843 | |
5844 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
5845 | sizeof(priv->staging_rxon)); | |
5846 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5847 | } else { | |
5848 | /* Initialize our rx_config data */ | |
bb8c093b | 5849 | iwl3945_connection_init_rx_config(priv); |
b481de9c ZY |
5850 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
5851 | } | |
5852 | ||
9fbab516 | 5853 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 5854 | iwl3945_send_bt_config(priv); |
b481de9c ZY |
5855 | |
5856 | /* Configure the adapter for unassociated operation */ | |
bb8c093b | 5857 | iwl3945_commit_rxon(priv); |
b481de9c | 5858 | |
b481de9c ZY |
5859 | iwl3945_reg_txpower_periodic(priv); |
5860 | ||
fe00b5a5 RC |
5861 | iwl3945_led_register(priv); |
5862 | ||
b481de9c | 5863 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 5864 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 5865 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
5866 | |
5867 | if (priv->error_recovering) | |
bb8c093b | 5868 | iwl3945_error_recovery(priv); |
b481de9c | 5869 | |
84363e6e | 5870 | ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); |
b481de9c ZY |
5871 | return; |
5872 | ||
5873 | restart: | |
5874 | queue_work(priv->workqueue, &priv->restart); | |
5875 | } | |
5876 | ||
bb8c093b | 5877 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv); |
b481de9c | 5878 | |
bb8c093b | 5879 | static void __iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5880 | { |
5881 | unsigned long flags; | |
5882 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
5883 | struct ieee80211_conf *conf = NULL; | |
5884 | ||
5885 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
5886 | ||
5887 | conf = ieee80211_get_hw_conf(priv->hw); | |
5888 | ||
5889 | if (!exit_pending) | |
5890 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5891 | ||
ab53d8af | 5892 | iwl3945_led_unregister(priv); |
bb8c093b | 5893 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
5894 | |
5895 | /* Unblock any waiting calls */ | |
5896 | wake_up_interruptible_all(&priv->wait_command_queue); | |
5897 | ||
b481de9c ZY |
5898 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
5899 | * exiting the module */ | |
5900 | if (!exit_pending) | |
5901 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
5902 | ||
5903 | /* stop and reset the on-board processor */ | |
bb8c093b | 5904 | iwl3945_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
5905 | |
5906 | /* tell the device to stop sending interrupts */ | |
0359facc | 5907 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 5908 | iwl3945_disable_interrupts(priv); |
0359facc MA |
5909 | spin_unlock_irqrestore(&priv->lock, flags); |
5910 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
5911 | |
5912 | if (priv->mac80211_registered) | |
5913 | ieee80211_stop_queues(priv->hw); | |
5914 | ||
bb8c093b | 5915 | /* If we have not previously called iwl3945_init() then |
b481de9c | 5916 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
bb8c093b | 5917 | if (!iwl3945_is_init(priv)) { |
b481de9c ZY |
5918 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
5919 | STATUS_RF_KILL_HW | | |
5920 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5921 | STATUS_RF_KILL_SW | | |
9788864e RC |
5922 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5923 | STATUS_GEO_CONFIGURED | | |
b481de9c | 5924 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
ebef2008 AK |
5925 | STATUS_IN_SUSPEND | |
5926 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5927 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5928 | goto exit; |
5929 | } | |
5930 | ||
5931 | /* ...otherwise clear out all the status bits but the RF Kill and | |
5932 | * SUSPEND bits and continue taking the NIC down. */ | |
5933 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
5934 | STATUS_RF_KILL_HW | | |
5935 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5936 | STATUS_RF_KILL_SW | | |
9788864e RC |
5937 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5938 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
5939 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
5940 | STATUS_IN_SUSPEND | | |
5941 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
ebef2008 AK |
5942 | STATUS_FW_ERROR | |
5943 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5944 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5945 | |
5946 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5947 | iwl3945_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
5948 | spin_unlock_irqrestore(&priv->lock, flags); |
5949 | ||
bb8c093b CH |
5950 | iwl3945_hw_txq_ctx_stop(priv); |
5951 | iwl3945_hw_rxq_stop(priv); | |
b481de9c ZY |
5952 | |
5953 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
5954 | if (!iwl3945_grab_nic_access(priv)) { |
5955 | iwl3945_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 5956 | APMG_CLK_VAL_DMA_CLK_RQT); |
bb8c093b | 5957 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5958 | } |
5959 | spin_unlock_irqrestore(&priv->lock, flags); | |
5960 | ||
5961 | udelay(5); | |
5962 | ||
bb8c093b CH |
5963 | iwl3945_hw_nic_stop_master(priv); |
5964 | iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); | |
5965 | iwl3945_hw_nic_reset(priv); | |
b481de9c ZY |
5966 | |
5967 | exit: | |
bb8c093b | 5968 | memset(&priv->card_alive, 0, sizeof(struct iwl3945_alive_resp)); |
b481de9c ZY |
5969 | |
5970 | if (priv->ibss_beacon) | |
5971 | dev_kfree_skb(priv->ibss_beacon); | |
5972 | priv->ibss_beacon = NULL; | |
5973 | ||
5974 | /* clear out any free frames */ | |
bb8c093b | 5975 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
5976 | } |
5977 | ||
bb8c093b | 5978 | static void iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5979 | { |
5980 | mutex_lock(&priv->mutex); | |
bb8c093b | 5981 | __iwl3945_down(priv); |
b481de9c | 5982 | mutex_unlock(&priv->mutex); |
b24d22b1 | 5983 | |
bb8c093b | 5984 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
5985 | } |
5986 | ||
5987 | #define MAX_HW_RESTARTS 5 | |
5988 | ||
bb8c093b | 5989 | static int __iwl3945_up(struct iwl3945_priv *priv) |
b481de9c ZY |
5990 | { |
5991 | int rc, i; | |
5992 | ||
5993 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
5994 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
5995 | return -EIO; | |
5996 | } | |
5997 | ||
5998 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
5999 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
6000 | "parameter)\n"); | |
e655b9f0 ZY |
6001 | return -ENODEV; |
6002 | } | |
6003 | ||
e903fbd4 RC |
6004 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
6005 | IWL_ERROR("ucode not available for device bringup\n"); | |
6006 | return -EIO; | |
6007 | } | |
6008 | ||
e655b9f0 ZY |
6009 | /* If platform's RF_KILL switch is NOT set to KILL */ |
6010 | if (iwl3945_read32(priv, CSR_GP_CNTRL) & | |
6011 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
6012 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
6013 | else { | |
6014 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
6015 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
ebef2008 | 6016 | iwl3945_rfkill_set_hw_state(priv); |
e655b9f0 ZY |
6017 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); |
6018 | return -ENODEV; | |
6019 | } | |
b481de9c | 6020 | } |
ebef2008 | 6021 | iwl3945_rfkill_set_hw_state(priv); |
bb8c093b | 6022 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 6023 | |
bb8c093b | 6024 | rc = iwl3945_hw_nic_init(priv); |
b481de9c ZY |
6025 | if (rc) { |
6026 | IWL_ERROR("Unable to int nic\n"); | |
6027 | return rc; | |
6028 | } | |
6029 | ||
6030 | /* make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
6031 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
6032 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
6033 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
6034 | ||
6035 | /* clear (again), then enable host interrupts */ | |
bb8c093b CH |
6036 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
6037 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
6038 | |
6039 | /* really make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
6040 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
6041 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
6042 | |
6043 | /* Copy original ucode data image from disk into backup cache. | |
6044 | * This will be used to initialize the on-board processor's | |
6045 | * data SRAM for a clean start when the runtime program first loads. */ | |
6046 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 6047 | priv->ucode_data.len); |
b481de9c | 6048 | |
e655b9f0 ZY |
6049 | /* We return success when we resume from suspend and rf_kill is on. */ |
6050 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
6051 | return 0; | |
6052 | ||
b481de9c ZY |
6053 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
6054 | ||
bb8c093b | 6055 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
6056 | |
6057 | /* load bootstrap state machine, | |
6058 | * load bootstrap program into processor's memory, | |
6059 | * prepare to load the "initialize" uCode */ | |
bb8c093b | 6060 | rc = iwl3945_load_bsm(priv); |
b481de9c ZY |
6061 | |
6062 | if (rc) { | |
6063 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc); | |
6064 | continue; | |
6065 | } | |
6066 | ||
6067 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 6068 | iwl3945_nic_start(priv); |
b481de9c | 6069 | |
b481de9c ZY |
6070 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
6071 | ||
6072 | return 0; | |
6073 | } | |
6074 | ||
6075 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 6076 | __iwl3945_down(priv); |
ebef2008 | 6077 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
6078 | |
6079 | /* tried to restart and config the device for as long as our | |
6080 | * patience could withstand */ | |
6081 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
6082 | return -EIO; | |
6083 | } | |
6084 | ||
6085 | ||
6086 | /***************************************************************************** | |
6087 | * | |
6088 | * Workqueue callbacks | |
6089 | * | |
6090 | *****************************************************************************/ | |
6091 | ||
bb8c093b | 6092 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 6093 | { |
bb8c093b CH |
6094 | struct iwl3945_priv *priv = |
6095 | container_of(data, struct iwl3945_priv, init_alive_start.work); | |
b481de9c ZY |
6096 | |
6097 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6098 | return; | |
6099 | ||
6100 | mutex_lock(&priv->mutex); | |
bb8c093b | 6101 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
6102 | mutex_unlock(&priv->mutex); |
6103 | } | |
6104 | ||
bb8c093b | 6105 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 6106 | { |
bb8c093b CH |
6107 | struct iwl3945_priv *priv = |
6108 | container_of(data, struct iwl3945_priv, alive_start.work); | |
b481de9c ZY |
6109 | |
6110 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6111 | return; | |
6112 | ||
6113 | mutex_lock(&priv->mutex); | |
bb8c093b | 6114 | iwl3945_alive_start(priv); |
b481de9c ZY |
6115 | mutex_unlock(&priv->mutex); |
6116 | } | |
6117 | ||
bb8c093b | 6118 | static void iwl3945_bg_rf_kill(struct work_struct *work) |
b481de9c | 6119 | { |
bb8c093b | 6120 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, rf_kill); |
b481de9c ZY |
6121 | |
6122 | wake_up_interruptible(&priv->wait_command_queue); | |
6123 | ||
6124 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6125 | return; | |
6126 | ||
6127 | mutex_lock(&priv->mutex); | |
6128 | ||
bb8c093b | 6129 | if (!iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6130 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL, |
6131 | "HW and/or SW RF Kill no longer active, restarting " | |
6132 | "device\n"); | |
6133 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6134 | queue_work(priv->workqueue, &priv->restart); | |
6135 | } else { | |
6136 | ||
6137 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
6138 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
6139 | "disabled by SW switch\n"); | |
6140 | else | |
6141 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
6142 | "Kill switch must be turned off for " | |
6143 | "wireless networking to work.\n"); | |
6144 | } | |
ebef2008 AK |
6145 | |
6146 | iwl3945_rfkill_set_hw_state(priv); | |
b481de9c ZY |
6147 | mutex_unlock(&priv->mutex); |
6148 | } | |
6149 | ||
5ec03976 AK |
6150 | static void iwl3945_bg_set_monitor(struct work_struct *work) |
6151 | { | |
6152 | struct iwl3945_priv *priv = container_of(work, | |
6153 | struct iwl3945_priv, set_monitor); | |
6154 | ||
6155 | IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n"); | |
6156 | ||
6157 | mutex_lock(&priv->mutex); | |
6158 | ||
6159 | if (!iwl3945_is_ready(priv)) | |
6160 | IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); | |
6161 | else | |
6162 | if (iwl3945_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0) | |
6163 | IWL_ERROR("iwl3945_set_mode() failed\n"); | |
6164 | ||
6165 | mutex_unlock(&priv->mutex); | |
6166 | } | |
6167 | ||
b481de9c ZY |
6168 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
6169 | ||
bb8c093b | 6170 | static void iwl3945_bg_scan_check(struct work_struct *data) |
b481de9c | 6171 | { |
bb8c093b CH |
6172 | struct iwl3945_priv *priv = |
6173 | container_of(data, struct iwl3945_priv, scan_check.work); | |
b481de9c ZY |
6174 | |
6175 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6176 | return; | |
6177 | ||
6178 | mutex_lock(&priv->mutex); | |
6179 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
6180 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6181 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, | |
6182 | "Scan completion watchdog resetting adapter (%dms)\n", | |
6183 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
15e869d8 | 6184 | |
b481de9c | 6185 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 6186 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6187 | } |
6188 | mutex_unlock(&priv->mutex); | |
6189 | } | |
6190 | ||
bb8c093b | 6191 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 6192 | { |
bb8c093b CH |
6193 | struct iwl3945_priv *priv = |
6194 | container_of(data, struct iwl3945_priv, request_scan); | |
6195 | struct iwl3945_host_cmd cmd = { | |
b481de9c | 6196 | .id = REPLY_SCAN_CMD, |
bb8c093b | 6197 | .len = sizeof(struct iwl3945_scan_cmd), |
b481de9c ZY |
6198 | .meta.flags = CMD_SIZE_HUGE, |
6199 | }; | |
6200 | int rc = 0; | |
bb8c093b | 6201 | struct iwl3945_scan_cmd *scan; |
b481de9c ZY |
6202 | struct ieee80211_conf *conf = NULL; |
6203 | u8 direct_mask; | |
8318d78a | 6204 | enum ieee80211_band band; |
b481de9c ZY |
6205 | |
6206 | conf = ieee80211_get_hw_conf(priv->hw); | |
6207 | ||
6208 | mutex_lock(&priv->mutex); | |
6209 | ||
bb8c093b | 6210 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
6211 | IWL_WARNING("request scan called when driver not ready.\n"); |
6212 | goto done; | |
6213 | } | |
6214 | ||
6215 | /* Make sure the scan wasn't cancelled before this queued work | |
6216 | * was given the chance to run... */ | |
6217 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
6218 | goto done; | |
6219 | ||
6220 | /* This should never be called or scheduled if there is currently | |
6221 | * a scan active in the hardware. */ | |
6222 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
6223 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
6224 | "Ignoring second request.\n"); | |
6225 | rc = -EIO; | |
6226 | goto done; | |
6227 | } | |
6228 | ||
6229 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
6230 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
6231 | goto done; | |
6232 | } | |
6233 | ||
6234 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6235 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
6236 | goto done; | |
6237 | } | |
6238 | ||
bb8c093b | 6239 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6240 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
6241 | goto done; | |
6242 | } | |
6243 | ||
6244 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6245 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
6246 | goto done; | |
6247 | } | |
6248 | ||
6249 | if (!priv->scan_bands) { | |
6250 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
6251 | goto done; | |
6252 | } | |
6253 | ||
6254 | if (!priv->scan) { | |
bb8c093b | 6255 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + |
b481de9c ZY |
6256 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
6257 | if (!priv->scan) { | |
6258 | rc = -ENOMEM; | |
6259 | goto done; | |
6260 | } | |
6261 | } | |
6262 | scan = priv->scan; | |
bb8c093b | 6263 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
6264 | |
6265 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
6266 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
6267 | ||
bb8c093b | 6268 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
6269 | u16 interval = 0; |
6270 | u32 extra; | |
6271 | u32 suspend_time = 100; | |
6272 | u32 scan_suspend_time = 100; | |
6273 | unsigned long flags; | |
6274 | ||
6275 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
6276 | ||
6277 | spin_lock_irqsave(&priv->lock, flags); | |
6278 | interval = priv->beacon_int; | |
6279 | spin_unlock_irqrestore(&priv->lock, flags); | |
6280 | ||
6281 | scan->suspend_time = 0; | |
15e869d8 | 6282 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
6283 | if (!interval) |
6284 | interval = suspend_time; | |
6285 | /* | |
6286 | * suspend time format: | |
6287 | * 0-19: beacon interval in usec (time before exec.) | |
6288 | * 20-23: 0 | |
6289 | * 24-31: number of beacons (suspend between channels) | |
6290 | */ | |
6291 | ||
6292 | extra = (suspend_time / interval) << 24; | |
6293 | scan_suspend_time = 0xFF0FFFFF & | |
6294 | (extra | ((suspend_time % interval) * 1024)); | |
6295 | ||
6296 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
6297 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
6298 | scan_suspend_time, interval); | |
6299 | } | |
6300 | ||
6301 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
6302 | if (priv->one_direct_scan) { | |
6303 | IWL_DEBUG_SCAN | |
6304 | ("Kicking off one direct scan for '%s'\n", | |
bb8c093b | 6305 | iwl3945_escape_essid(priv->direct_ssid, |
b481de9c ZY |
6306 | priv->direct_ssid_len)); |
6307 | scan->direct_scan[0].id = WLAN_EID_SSID; | |
6308 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
6309 | memcpy(scan->direct_scan[0].ssid, | |
6310 | priv->direct_ssid, priv->direct_ssid_len); | |
6311 | direct_mask = 1; | |
bb8c093b | 6312 | } else if (!iwl3945_is_associated(priv) && priv->essid_len) { |
786b4557 BM |
6313 | IWL_DEBUG_SCAN |
6314 | ("Kicking off one direct scan for '%s' when not associated\n", | |
6315 | iwl3945_escape_essid(priv->essid, priv->essid_len)); | |
b481de9c ZY |
6316 | scan->direct_scan[0].id = WLAN_EID_SSID; |
6317 | scan->direct_scan[0].len = priv->essid_len; | |
6318 | memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len); | |
6319 | direct_mask = 1; | |
786b4557 BM |
6320 | } else { |
6321 | IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); | |
b481de9c | 6322 | direct_mask = 0; |
786b4557 | 6323 | } |
b481de9c ZY |
6324 | |
6325 | /* We don't build a direct scan probe request; the uCode will do | |
6326 | * that based on the direct_mask added to each channel entry */ | |
6327 | scan->tx_cmd.len = cpu_to_le16( | |
bb8c093b | 6328 | iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data, |
18904f58 | 6329 | IWL_MAX_SCAN_SIZE - sizeof(*scan), 0)); |
b481de9c ZY |
6330 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
6331 | scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id; | |
6332 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
6333 | ||
6334 | /* flags + rate selection */ | |
6335 | ||
66b5004d | 6336 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
b481de9c ZY |
6337 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
6338 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
6339 | scan->good_CRC_th = 0; | |
8318d78a | 6340 | band = IEEE80211_BAND_2GHZ; |
66b5004d | 6341 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
b481de9c ZY |
6342 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
6343 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 6344 | band = IEEE80211_BAND_5GHZ; |
66b5004d | 6345 | } else { |
b481de9c ZY |
6346 | IWL_WARNING("Invalid scan band count\n"); |
6347 | goto done; | |
6348 | } | |
6349 | ||
6350 | /* select Rx antennas */ | |
6351 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
6352 | ||
6353 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) | |
6354 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; | |
6355 | ||
786b4557 | 6356 | if (direct_mask) |
26c0f03f RC |
6357 | scan->channel_count = |
6358 | iwl3945_get_channels_for_scan( | |
6359 | priv, band, 1, /* active */ | |
6360 | direct_mask, | |
6361 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
786b4557 | 6362 | else |
26c0f03f RC |
6363 | scan->channel_count = |
6364 | iwl3945_get_channels_for_scan( | |
6365 | priv, band, 0, /* passive */ | |
6366 | direct_mask, | |
6367 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c ZY |
6368 | |
6369 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + | |
bb8c093b | 6370 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
6371 | cmd.data = scan; |
6372 | scan->len = cpu_to_le16(cmd.len); | |
6373 | ||
6374 | set_bit(STATUS_SCAN_HW, &priv->status); | |
bb8c093b | 6375 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
6376 | if (rc) |
6377 | goto done; | |
6378 | ||
6379 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
6380 | IWL_SCAN_CHECK_WATCHDOG); | |
6381 | ||
6382 | mutex_unlock(&priv->mutex); | |
6383 | return; | |
6384 | ||
6385 | done: | |
01ebd063 | 6386 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
6387 | queue_work(priv->workqueue, &priv->scan_completed); |
6388 | mutex_unlock(&priv->mutex); | |
6389 | } | |
6390 | ||
bb8c093b | 6391 | static void iwl3945_bg_up(struct work_struct *data) |
b481de9c | 6392 | { |
bb8c093b | 6393 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, up); |
b481de9c ZY |
6394 | |
6395 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6396 | return; | |
6397 | ||
6398 | mutex_lock(&priv->mutex); | |
bb8c093b | 6399 | __iwl3945_up(priv); |
b481de9c ZY |
6400 | mutex_unlock(&priv->mutex); |
6401 | } | |
6402 | ||
bb8c093b | 6403 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 6404 | { |
bb8c093b | 6405 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, restart); |
b481de9c ZY |
6406 | |
6407 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6408 | return; | |
6409 | ||
bb8c093b | 6410 | iwl3945_down(priv); |
b481de9c ZY |
6411 | queue_work(priv->workqueue, &priv->up); |
6412 | } | |
6413 | ||
bb8c093b | 6414 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 6415 | { |
bb8c093b CH |
6416 | struct iwl3945_priv *priv = |
6417 | container_of(data, struct iwl3945_priv, rx_replenish); | |
b481de9c ZY |
6418 | |
6419 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6420 | return; | |
6421 | ||
6422 | mutex_lock(&priv->mutex); | |
bb8c093b | 6423 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
6424 | mutex_unlock(&priv->mutex); |
6425 | } | |
6426 | ||
7878a5a4 MA |
6427 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
6428 | ||
bb8c093b | 6429 | static void iwl3945_bg_post_associate(struct work_struct *data) |
b481de9c | 6430 | { |
bb8c093b | 6431 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, |
b481de9c ZY |
6432 | post_associate.work); |
6433 | ||
6434 | int rc = 0; | |
6435 | struct ieee80211_conf *conf = NULL; | |
0795af57 | 6436 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
6437 | |
6438 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
6439 | IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__); | |
6440 | return; | |
6441 | } | |
6442 | ||
6443 | ||
0795af57 JP |
6444 | IWL_DEBUG_ASSOC("Associated as %d to: %s\n", |
6445 | priv->assoc_id, | |
6446 | print_mac(mac, priv->active_rxon.bssid_addr)); | |
b481de9c ZY |
6447 | |
6448 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6449 | return; | |
6450 | ||
6451 | mutex_lock(&priv->mutex); | |
6452 | ||
32bfd35d | 6453 | if (!priv->vif || !priv->is_open) { |
6ef89d0a MA |
6454 | mutex_unlock(&priv->mutex); |
6455 | return; | |
6456 | } | |
bb8c093b | 6457 | iwl3945_scan_cancel_timeout(priv, 200); |
15e869d8 | 6458 | |
b481de9c ZY |
6459 | conf = ieee80211_get_hw_conf(priv->hw); |
6460 | ||
6461 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6462 | iwl3945_commit_rxon(priv); |
b481de9c | 6463 | |
bb8c093b CH |
6464 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6465 | iwl3945_setup_rxon_timing(priv); | |
6466 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6467 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6468 | if (rc) | |
6469 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6470 | "Attempting to continue.\n"); | |
6471 | ||
6472 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
6473 | ||
6474 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6475 | ||
6476 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
6477 | priv->assoc_id, priv->beacon_int); | |
6478 | ||
6479 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6480 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6481 | else | |
6482 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6483 | ||
6484 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6485 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6486 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
6487 | else | |
6488 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
6489 | ||
6490 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
6491 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
6492 | ||
6493 | } | |
6494 | ||
bb8c093b | 6495 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6496 | |
6497 | switch (priv->iw_mode) { | |
6498 | case IEEE80211_IF_TYPE_STA: | |
bb8c093b | 6499 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
6500 | break; |
6501 | ||
6502 | case IEEE80211_IF_TYPE_IBSS: | |
6503 | ||
6504 | /* clear out the station table */ | |
bb8c093b | 6505 | iwl3945_clear_stations_table(priv); |
b481de9c | 6506 | |
bb8c093b CH |
6507 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); |
6508 | iwl3945_add_station(priv, priv->bssid, 0, 0); | |
b481de9c | 6509 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 6510 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
6511 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
6512 | CMD_ASYNC); | |
bb8c093b CH |
6513 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
6514 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
6515 | |
6516 | break; | |
6517 | ||
6518 | default: | |
6519 | IWL_ERROR("%s Should not be called in %d mode\n", | |
bc434dd2 | 6520 | __FUNCTION__, priv->iw_mode); |
b481de9c ZY |
6521 | break; |
6522 | } | |
6523 | ||
bb8c093b | 6524 | iwl3945_sequence_reset(priv); |
b481de9c | 6525 | |
bb8c093b | 6526 | iwl3945_activate_qos(priv, 0); |
292ae174 | 6527 | |
7878a5a4 MA |
6528 | /* we have just associated, don't start scan too early */ |
6529 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
b481de9c ZY |
6530 | mutex_unlock(&priv->mutex); |
6531 | } | |
6532 | ||
bb8c093b | 6533 | static void iwl3945_bg_abort_scan(struct work_struct *work) |
b481de9c | 6534 | { |
bb8c093b | 6535 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, abort_scan); |
b481de9c | 6536 | |
bb8c093b | 6537 | if (!iwl3945_is_ready(priv)) |
b481de9c ZY |
6538 | return; |
6539 | ||
6540 | mutex_lock(&priv->mutex); | |
6541 | ||
6542 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 6543 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6544 | |
6545 | mutex_unlock(&priv->mutex); | |
6546 | } | |
6547 | ||
76bb77e0 ZY |
6548 | static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
6549 | ||
bb8c093b | 6550 | static void iwl3945_bg_scan_completed(struct work_struct *work) |
b481de9c | 6551 | { |
bb8c093b CH |
6552 | struct iwl3945_priv *priv = |
6553 | container_of(work, struct iwl3945_priv, scan_completed); | |
b481de9c ZY |
6554 | |
6555 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n"); | |
6556 | ||
6557 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6558 | return; | |
6559 | ||
a0646470 ZY |
6560 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
6561 | iwl3945_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw)); | |
76bb77e0 | 6562 | |
b481de9c ZY |
6563 | ieee80211_scan_completed(priv->hw); |
6564 | ||
6565 | /* Since setting the TXPOWER may have been deferred while | |
6566 | * performing the scan, fire one off */ | |
6567 | mutex_lock(&priv->mutex); | |
bb8c093b | 6568 | iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
6569 | mutex_unlock(&priv->mutex); |
6570 | } | |
6571 | ||
6572 | /***************************************************************************** | |
6573 | * | |
6574 | * mac80211 entry point functions | |
6575 | * | |
6576 | *****************************************************************************/ | |
6577 | ||
5a66926a ZY |
6578 | #define UCODE_READY_TIMEOUT (2 * HZ) |
6579 | ||
bb8c093b | 6580 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 6581 | { |
bb8c093b | 6582 | struct iwl3945_priv *priv = hw->priv; |
5a66926a | 6583 | int ret; |
b481de9c ZY |
6584 | |
6585 | IWL_DEBUG_MAC80211("enter\n"); | |
6586 | ||
5a66926a ZY |
6587 | if (pci_enable_device(priv->pci_dev)) { |
6588 | IWL_ERROR("Fail to pci_enable_device\n"); | |
6589 | return -ENODEV; | |
6590 | } | |
6591 | pci_restore_state(priv->pci_dev); | |
6592 | pci_enable_msi(priv->pci_dev); | |
6593 | ||
6594 | ret = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED, | |
6595 | DRV_NAME, priv); | |
6596 | if (ret) { | |
6597 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
6598 | goto out_disable_msi; | |
6599 | } | |
6600 | ||
b481de9c ZY |
6601 | /* we should be verifying the device is ready to be opened */ |
6602 | mutex_lock(&priv->mutex); | |
6603 | ||
5a66926a ZY |
6604 | memset(&priv->staging_rxon, 0, sizeof(struct iwl3945_rxon_cmd)); |
6605 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... | |
6606 | * ucode filename and max sizes are card-specific. */ | |
6607 | ||
6608 | if (!priv->ucode_code.len) { | |
6609 | ret = iwl3945_read_ucode(priv); | |
6610 | if (ret) { | |
6611 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
6612 | mutex_unlock(&priv->mutex); | |
6613 | goto out_release_irq; | |
6614 | } | |
6615 | } | |
b481de9c | 6616 | |
e655b9f0 | 6617 | ret = __iwl3945_up(priv); |
b481de9c ZY |
6618 | |
6619 | mutex_unlock(&priv->mutex); | |
5a66926a | 6620 | |
e655b9f0 ZY |
6621 | if (ret) |
6622 | goto out_release_irq; | |
6623 | ||
6624 | IWL_DEBUG_INFO("Start UP work.\n"); | |
6625 | ||
6626 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
6627 | return 0; | |
6628 | ||
5a66926a ZY |
6629 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
6630 | * mac80211 will not be run successfully. */ | |
6631 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
6632 | test_bit(STATUS_READY, &priv->status), | |
6633 | UCODE_READY_TIMEOUT); | |
6634 | if (!ret) { | |
6635 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6636 | IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n", | |
6637 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
6638 | ret = -ETIMEDOUT; | |
6639 | goto out_release_irq; | |
6640 | } | |
6641 | } | |
6642 | ||
e655b9f0 | 6643 | priv->is_open = 1; |
b481de9c ZY |
6644 | IWL_DEBUG_MAC80211("leave\n"); |
6645 | return 0; | |
5a66926a ZY |
6646 | |
6647 | out_release_irq: | |
6648 | free_irq(priv->pci_dev->irq, priv); | |
6649 | out_disable_msi: | |
6650 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
6651 | pci_disable_device(priv->pci_dev); |
6652 | priv->is_open = 0; | |
6653 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 6654 | return ret; |
b481de9c ZY |
6655 | } |
6656 | ||
bb8c093b | 6657 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 6658 | { |
bb8c093b | 6659 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6660 | |
6661 | IWL_DEBUG_MAC80211("enter\n"); | |
6ef89d0a | 6662 | |
e655b9f0 ZY |
6663 | if (!priv->is_open) { |
6664 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
6665 | return; | |
6666 | } | |
6667 | ||
b481de9c | 6668 | priv->is_open = 0; |
5a66926a ZY |
6669 | |
6670 | if (iwl3945_is_ready_rf(priv)) { | |
e655b9f0 ZY |
6671 | /* stop mac, cancel any scan request and clear |
6672 | * RXON_FILTER_ASSOC_MSK BIT | |
6673 | */ | |
5a66926a ZY |
6674 | mutex_lock(&priv->mutex); |
6675 | iwl3945_scan_cancel_timeout(priv, 100); | |
6676 | cancel_delayed_work(&priv->post_associate); | |
fde3571f | 6677 | mutex_unlock(&priv->mutex); |
fde3571f MA |
6678 | } |
6679 | ||
5a66926a ZY |
6680 | iwl3945_down(priv); |
6681 | ||
6682 | flush_workqueue(priv->workqueue); | |
6683 | free_irq(priv->pci_dev->irq, priv); | |
6684 | pci_disable_msi(priv->pci_dev); | |
6685 | pci_save_state(priv->pci_dev); | |
6686 | pci_disable_device(priv->pci_dev); | |
6ef89d0a | 6687 | |
b481de9c | 6688 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6689 | } |
6690 | ||
e039fa4a | 6691 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 6692 | { |
bb8c093b | 6693 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6694 | |
6695 | IWL_DEBUG_MAC80211("enter\n"); | |
6696 | ||
6697 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
6698 | IWL_DEBUG_MAC80211("leave - monitor\n"); | |
6afe6828 ZY |
6699 | dev_kfree_skb_any(skb); |
6700 | return 0; | |
b481de9c ZY |
6701 | } |
6702 | ||
6703 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, | |
e039fa4a | 6704 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 6705 | |
e039fa4a | 6706 | if (iwl3945_tx_skb(priv, skb)) |
b481de9c ZY |
6707 | dev_kfree_skb_any(skb); |
6708 | ||
6709 | IWL_DEBUG_MAC80211("leave\n"); | |
6710 | return 0; | |
6711 | } | |
6712 | ||
bb8c093b | 6713 | static int iwl3945_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6714 | struct ieee80211_if_init_conf *conf) |
6715 | { | |
bb8c093b | 6716 | struct iwl3945_priv *priv = hw->priv; |
b481de9c | 6717 | unsigned long flags; |
0795af57 | 6718 | DECLARE_MAC_BUF(mac); |
b481de9c | 6719 | |
32bfd35d | 6720 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 6721 | |
32bfd35d JB |
6722 | if (priv->vif) { |
6723 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
864792e3 | 6724 | return -EOPNOTSUPP; |
b481de9c ZY |
6725 | } |
6726 | ||
6727 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 6728 | priv->vif = conf->vif; |
b481de9c ZY |
6729 | |
6730 | spin_unlock_irqrestore(&priv->lock, flags); | |
6731 | ||
6732 | mutex_lock(&priv->mutex); | |
864792e3 TW |
6733 | |
6734 | if (conf->mac_addr) { | |
6735 | IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac, conf->mac_addr)); | |
6736 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); | |
6737 | } | |
6738 | ||
5a66926a ZY |
6739 | if (iwl3945_is_ready(priv)) |
6740 | iwl3945_set_mode(priv, conf->type); | |
b481de9c | 6741 | |
b481de9c ZY |
6742 | mutex_unlock(&priv->mutex); |
6743 | ||
5a66926a | 6744 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6745 | return 0; |
6746 | } | |
6747 | ||
6748 | /** | |
bb8c093b | 6749 | * iwl3945_mac_config - mac80211 config callback |
b481de9c ZY |
6750 | * |
6751 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
6752 | * be set inappropriately and the driver currently sets the hardware up to | |
6753 | * use it whenever needed. | |
6754 | */ | |
bb8c093b | 6755 | static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) |
b481de9c | 6756 | { |
bb8c093b CH |
6757 | struct iwl3945_priv *priv = hw->priv; |
6758 | const struct iwl3945_channel_info *ch_info; | |
b481de9c | 6759 | unsigned long flags; |
76bb77e0 | 6760 | int ret = 0; |
b481de9c ZY |
6761 | |
6762 | mutex_lock(&priv->mutex); | |
8318d78a | 6763 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 6764 | |
12342c47 ZY |
6765 | priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
6766 | ||
bb8c093b | 6767 | if (!iwl3945_is_ready(priv)) { |
b481de9c | 6768 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
6769 | ret = -EIO; |
6770 | goto out; | |
b481de9c ZY |
6771 | } |
6772 | ||
bb8c093b | 6773 | if (unlikely(!iwl3945_param_disable_hw_scan && |
b481de9c | 6774 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
6775 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
6776 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 6777 | mutex_unlock(&priv->mutex); |
a0646470 | 6778 | return 0; |
b481de9c ZY |
6779 | } |
6780 | ||
6781 | spin_lock_irqsave(&priv->lock, flags); | |
6782 | ||
8318d78a JB |
6783 | ch_info = iwl3945_get_channel_info(priv, conf->channel->band, |
6784 | conf->channel->hw_value); | |
b481de9c | 6785 | if (!is_channel_valid(ch_info)) { |
66b5004d | 6786 | IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n", |
8318d78a | 6787 | conf->channel->hw_value, conf->channel->band); |
b481de9c ZY |
6788 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
6789 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
6790 | ret = -EINVAL; |
6791 | goto out; | |
b481de9c ZY |
6792 | } |
6793 | ||
8318d78a | 6794 | iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value); |
b481de9c | 6795 | |
8318d78a | 6796 | iwl3945_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
6797 | |
6798 | /* The list of supported rates and rate mask can be different | |
6799 | * for each phymode; since the phymode may have changed, reset | |
6800 | * the rate mask to what mac80211 lists */ | |
bb8c093b | 6801 | iwl3945_set_rate(priv); |
b481de9c ZY |
6802 | |
6803 | spin_unlock_irqrestore(&priv->lock, flags); | |
6804 | ||
6805 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
6806 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 6807 | iwl3945_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 6808 | goto out; |
b481de9c ZY |
6809 | } |
6810 | #endif | |
6811 | ||
bb8c093b | 6812 | iwl3945_radio_kill_sw(priv, !conf->radio_enabled); |
b481de9c ZY |
6813 | |
6814 | if (!conf->radio_enabled) { | |
6815 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 6816 | goto out; |
b481de9c ZY |
6817 | } |
6818 | ||
bb8c093b | 6819 | if (iwl3945_is_rfkill(priv)) { |
b481de9c | 6820 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
6821 | ret = -EIO; |
6822 | goto out; | |
b481de9c ZY |
6823 | } |
6824 | ||
bb8c093b | 6825 | iwl3945_set_rate(priv); |
b481de9c ZY |
6826 | |
6827 | if (memcmp(&priv->active_rxon, | |
6828 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 6829 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6830 | else |
6831 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
6832 | ||
6833 | IWL_DEBUG_MAC80211("leave\n"); | |
6834 | ||
76bb77e0 | 6835 | out: |
a0646470 | 6836 | clear_bit(STATUS_CONF_PENDING, &priv->status); |
b481de9c | 6837 | mutex_unlock(&priv->mutex); |
76bb77e0 | 6838 | return ret; |
b481de9c ZY |
6839 | } |
6840 | ||
bb8c093b | 6841 | static void iwl3945_config_ap(struct iwl3945_priv *priv) |
b481de9c ZY |
6842 | { |
6843 | int rc = 0; | |
6844 | ||
d986bcd1 | 6845 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
6846 | return; |
6847 | ||
6848 | /* The following should be done only at AP bring up */ | |
5d1e2325 | 6849 | if (!(iwl3945_is_associated(priv))) { |
b481de9c ZY |
6850 | |
6851 | /* RXON - unassoc (to set timing command) */ | |
6852 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6853 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6854 | |
6855 | /* RXON Timing */ | |
bb8c093b CH |
6856 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6857 | iwl3945_setup_rxon_timing(priv); | |
6858 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6859 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6860 | if (rc) | |
6861 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6862 | "Attempting to continue.\n"); | |
6863 | ||
6864 | /* FIXME: what should be the assoc_id for AP? */ | |
6865 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6866 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6867 | priv->staging_rxon.flags |= | |
6868 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
6869 | else | |
6870 | priv->staging_rxon.flags &= | |
6871 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6872 | ||
6873 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6874 | if (priv->assoc_capability & | |
6875 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6876 | priv->staging_rxon.flags |= | |
6877 | RXON_FLG_SHORT_SLOT_MSK; | |
6878 | else | |
6879 | priv->staging_rxon.flags &= | |
6880 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6881 | ||
6882 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
6883 | priv->staging_rxon.flags &= | |
6884 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6885 | } | |
6886 | /* restore RXON assoc */ | |
6887 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b CH |
6888 | iwl3945_commit_rxon(priv); |
6889 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); | |
556f8db7 | 6890 | } |
bb8c093b | 6891 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
6892 | |
6893 | /* FIXME - we need to add code here to detect a totally new | |
6894 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
6895 | * clear sta table, add BCAST sta... */ | |
6896 | } | |
6897 | ||
32bfd35d JB |
6898 | static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, |
6899 | struct ieee80211_vif *vif, | |
b481de9c ZY |
6900 | struct ieee80211_if_conf *conf) |
6901 | { | |
bb8c093b | 6902 | struct iwl3945_priv *priv = hw->priv; |
0795af57 | 6903 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
6904 | unsigned long flags; |
6905 | int rc; | |
6906 | ||
6907 | if (conf == NULL) | |
6908 | return -EIO; | |
6909 | ||
b716bb91 EG |
6910 | if (priv->vif != vif) { |
6911 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
6912 | return 0; |
6913 | } | |
6914 | ||
4150c572 JB |
6915 | /* XXX: this MUST use conf->mac_addr */ |
6916 | ||
b481de9c ZY |
6917 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && |
6918 | (!conf->beacon || !conf->ssid_len)) { | |
6919 | IWL_DEBUG_MAC80211 | |
6920 | ("Leaving in AP mode because HostAPD is not ready.\n"); | |
6921 | return 0; | |
6922 | } | |
6923 | ||
5a66926a ZY |
6924 | if (!iwl3945_is_alive(priv)) |
6925 | return -EAGAIN; | |
6926 | ||
b481de9c ZY |
6927 | mutex_lock(&priv->mutex); |
6928 | ||
b481de9c | 6929 | if (conf->bssid) |
0795af57 JP |
6930 | IWL_DEBUG_MAC80211("bssid: %s\n", |
6931 | print_mac(mac, conf->bssid)); | |
b481de9c | 6932 | |
4150c572 JB |
6933 | /* |
6934 | * very dubious code was here; the probe filtering flag is never set: | |
6935 | * | |
b481de9c ZY |
6936 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
6937 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 6938 | */ |
b481de9c ZY |
6939 | |
6940 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
6941 | if (!conf->bssid) { | |
6942 | conf->bssid = priv->mac_addr; | |
6943 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
0795af57 JP |
6944 | IWL_DEBUG_MAC80211("bssid was set to: %s\n", |
6945 | print_mac(mac, conf->bssid)); | |
b481de9c ZY |
6946 | } |
6947 | if (priv->ibss_beacon) | |
6948 | dev_kfree_skb(priv->ibss_beacon); | |
6949 | ||
6950 | priv->ibss_beacon = conf->beacon; | |
6951 | } | |
6952 | ||
fde3571f MA |
6953 | if (iwl3945_is_rfkill(priv)) |
6954 | goto done; | |
6955 | ||
b481de9c ZY |
6956 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
6957 | !is_multicast_ether_addr(conf->bssid)) { | |
6958 | /* If there is currently a HW scan going on in the background | |
6959 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 6960 | if (iwl3945_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
6961 | IWL_WARNING("Aborted scan still in progress " |
6962 | "after 100ms\n"); | |
6963 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
6964 | mutex_unlock(&priv->mutex); | |
6965 | return -EAGAIN; | |
6966 | } | |
6967 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
6968 | ||
6969 | /* TODO: Audit driver for usage of these members and see | |
6970 | * if mac80211 deprecates them (priv->bssid looks like it | |
6971 | * shouldn't be there, but I haven't scanned the IBSS code | |
6972 | * to verify) - jpk */ | |
6973 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
6974 | ||
6975 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 6976 | iwl3945_config_ap(priv); |
b481de9c | 6977 | else { |
bb8c093b | 6978 | rc = iwl3945_commit_rxon(priv); |
b481de9c | 6979 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc) |
bb8c093b | 6980 | iwl3945_add_station(priv, |
556f8db7 | 6981 | priv->active_rxon.bssid_addr, 1, 0); |
b481de9c ZY |
6982 | } |
6983 | ||
6984 | } else { | |
bb8c093b | 6985 | iwl3945_scan_cancel_timeout(priv, 100); |
b481de9c | 6986 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 6987 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6988 | } |
6989 | ||
fde3571f | 6990 | done: |
b481de9c ZY |
6991 | spin_lock_irqsave(&priv->lock, flags); |
6992 | if (!conf->ssid_len) | |
6993 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
6994 | else | |
6995 | memcpy(priv->essid, conf->ssid, conf->ssid_len); | |
6996 | ||
6997 | priv->essid_len = conf->ssid_len; | |
6998 | spin_unlock_irqrestore(&priv->lock, flags); | |
6999 | ||
7000 | IWL_DEBUG_MAC80211("leave\n"); | |
7001 | mutex_unlock(&priv->mutex); | |
7002 | ||
7003 | return 0; | |
7004 | } | |
7005 | ||
bb8c093b | 7006 | static void iwl3945_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
7007 | unsigned int changed_flags, |
7008 | unsigned int *total_flags, | |
7009 | int mc_count, struct dev_addr_list *mc_list) | |
7010 | { | |
5ec03976 | 7011 | struct iwl3945_priv *priv = hw->priv; |
25b3f57c RF |
7012 | |
7013 | if (changed_flags & (*total_flags) & FIF_OTHER_BSS) { | |
7014 | IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n", | |
7015 | IEEE80211_IF_TYPE_MNTR, | |
7016 | changed_flags, *total_flags); | |
7017 | /* queue work 'cuz mac80211 is holding a lock which | |
7018 | * prevents us from issuing (synchronous) f/w cmds */ | |
7019 | queue_work(priv->workqueue, &priv->set_monitor); | |
5ec03976 | 7020 | } |
25b3f57c RF |
7021 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | |
7022 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
4150c572 JB |
7023 | } |
7024 | ||
bb8c093b | 7025 | static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
7026 | struct ieee80211_if_init_conf *conf) |
7027 | { | |
bb8c093b | 7028 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7029 | |
7030 | IWL_DEBUG_MAC80211("enter\n"); | |
7031 | ||
7032 | mutex_lock(&priv->mutex); | |
6ef89d0a | 7033 | |
fde3571f MA |
7034 | if (iwl3945_is_ready_rf(priv)) { |
7035 | iwl3945_scan_cancel_timeout(priv, 100); | |
7036 | cancel_delayed_work(&priv->post_associate); | |
7037 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
7038 | iwl3945_commit_rxon(priv); | |
7039 | } | |
32bfd35d JB |
7040 | if (priv->vif == conf->vif) { |
7041 | priv->vif = NULL; | |
b481de9c ZY |
7042 | memset(priv->bssid, 0, ETH_ALEN); |
7043 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
7044 | priv->essid_len = 0; | |
7045 | } | |
7046 | mutex_unlock(&priv->mutex); | |
7047 | ||
7048 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
7049 | } |
7050 | ||
bb8c093b | 7051 | static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
7052 | { |
7053 | int rc = 0; | |
7054 | unsigned long flags; | |
bb8c093b | 7055 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7056 | |
7057 | IWL_DEBUG_MAC80211("enter\n"); | |
7058 | ||
15e869d8 | 7059 | mutex_lock(&priv->mutex); |
b481de9c ZY |
7060 | spin_lock_irqsave(&priv->lock, flags); |
7061 | ||
bb8c093b | 7062 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7063 | rc = -EIO; |
7064 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
7065 | goto out_unlock; | |
7066 | } | |
7067 | ||
7068 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */ | |
7069 | rc = -EIO; | |
7070 | IWL_ERROR("ERROR: APs don't scan\n"); | |
7071 | goto out_unlock; | |
7072 | } | |
7073 | ||
7878a5a4 MA |
7074 | /* we don't schedule scan within next_scan_jiffies period */ |
7075 | if (priv->next_scan_jiffies && | |
7076 | time_after(priv->next_scan_jiffies, jiffies)) { | |
7077 | rc = -EAGAIN; | |
7078 | goto out_unlock; | |
7079 | } | |
15dbf1b7 BM |
7080 | /* if we just finished scan ask for delay for a broadcast scan */ |
7081 | if ((len == 0) && priv->last_scan_jiffies && | |
7082 | time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, | |
7083 | jiffies)) { | |
b481de9c ZY |
7084 | rc = -EAGAIN; |
7085 | goto out_unlock; | |
7086 | } | |
7087 | if (len) { | |
7878a5a4 | 7088 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
bb8c093b | 7089 | iwl3945_escape_essid(ssid, len), (int)len); |
b481de9c ZY |
7090 | |
7091 | priv->one_direct_scan = 1; | |
7092 | priv->direct_ssid_len = (u8) | |
7093 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
7094 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
6ef89d0a MA |
7095 | } else |
7096 | priv->one_direct_scan = 0; | |
b481de9c | 7097 | |
bb8c093b | 7098 | rc = iwl3945_scan_initiate(priv); |
b481de9c ZY |
7099 | |
7100 | IWL_DEBUG_MAC80211("leave\n"); | |
7101 | ||
7102 | out_unlock: | |
7103 | spin_unlock_irqrestore(&priv->lock, flags); | |
15e869d8 | 7104 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
7105 | |
7106 | return rc; | |
7107 | } | |
7108 | ||
bb8c093b | 7109 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
7110 | const u8 *local_addr, const u8 *addr, |
7111 | struct ieee80211_key_conf *key) | |
7112 | { | |
bb8c093b | 7113 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7114 | int rc = 0; |
7115 | u8 sta_id; | |
7116 | ||
7117 | IWL_DEBUG_MAC80211("enter\n"); | |
7118 | ||
bb8c093b | 7119 | if (!iwl3945_param_hwcrypto) { |
b481de9c ZY |
7120 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
7121 | return -EOPNOTSUPP; | |
7122 | } | |
7123 | ||
7124 | if (is_zero_ether_addr(addr)) | |
7125 | /* only support pairwise keys */ | |
7126 | return -EOPNOTSUPP; | |
7127 | ||
bb8c093b | 7128 | sta_id = iwl3945_hw_find_station(priv, addr); |
b481de9c | 7129 | if (sta_id == IWL_INVALID_STATION) { |
0795af57 JP |
7130 | DECLARE_MAC_BUF(mac); |
7131 | ||
7132 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
7133 | print_mac(mac, addr)); | |
b481de9c ZY |
7134 | return -EINVAL; |
7135 | } | |
7136 | ||
7137 | mutex_lock(&priv->mutex); | |
7138 | ||
bb8c093b | 7139 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7140 | |
b481de9c ZY |
7141 | switch (cmd) { |
7142 | case SET_KEY: | |
bb8c093b | 7143 | rc = iwl3945_update_sta_key_info(priv, key, sta_id); |
b481de9c | 7144 | if (!rc) { |
bb8c093b CH |
7145 | iwl3945_set_rxon_hwcrypto(priv, 1); |
7146 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7147 | key->hw_key_idx = sta_id; |
7148 | IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n"); | |
7149 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
7150 | } | |
7151 | break; | |
7152 | case DISABLE_KEY: | |
bb8c093b | 7153 | rc = iwl3945_clear_sta_key_info(priv, sta_id); |
b481de9c | 7154 | if (!rc) { |
bb8c093b CH |
7155 | iwl3945_set_rxon_hwcrypto(priv, 0); |
7156 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7157 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); |
7158 | } | |
7159 | break; | |
7160 | default: | |
7161 | rc = -EINVAL; | |
7162 | } | |
7163 | ||
7164 | IWL_DEBUG_MAC80211("leave\n"); | |
7165 | mutex_unlock(&priv->mutex); | |
7166 | ||
7167 | return rc; | |
7168 | } | |
7169 | ||
e100bb64 | 7170 | static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
7171 | const struct ieee80211_tx_queue_params *params) |
7172 | { | |
bb8c093b | 7173 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7174 | unsigned long flags; |
7175 | int q; | |
b481de9c ZY |
7176 | |
7177 | IWL_DEBUG_MAC80211("enter\n"); | |
7178 | ||
bb8c093b | 7179 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7180 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7181 | return -EIO; | |
7182 | } | |
7183 | ||
7184 | if (queue >= AC_NUM) { | |
7185 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
7186 | return 0; | |
7187 | } | |
7188 | ||
b481de9c ZY |
7189 | if (!priv->qos_data.qos_enable) { |
7190 | priv->qos_data.qos_active = 0; | |
7191 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
7192 | return 0; | |
7193 | } | |
7194 | q = AC_NUM - 1 - queue; | |
7195 | ||
7196 | spin_lock_irqsave(&priv->lock, flags); | |
7197 | ||
7198 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
7199 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
7200 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
7201 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 7202 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
7203 | |
7204 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
7205 | priv->qos_data.qos_active = 1; | |
7206 | ||
7207 | spin_unlock_irqrestore(&priv->lock, flags); | |
7208 | ||
7209 | mutex_lock(&priv->mutex); | |
7210 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b CH |
7211 | iwl3945_activate_qos(priv, 1); |
7212 | else if (priv->assoc_id && iwl3945_is_associated(priv)) | |
7213 | iwl3945_activate_qos(priv, 0); | |
b481de9c ZY |
7214 | |
7215 | mutex_unlock(&priv->mutex); | |
7216 | ||
b481de9c ZY |
7217 | IWL_DEBUG_MAC80211("leave\n"); |
7218 | return 0; | |
7219 | } | |
7220 | ||
bb8c093b | 7221 | static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7222 | struct ieee80211_tx_queue_stats *stats) |
7223 | { | |
bb8c093b | 7224 | struct iwl3945_priv *priv = hw->priv; |
b481de9c | 7225 | int i, avail; |
bb8c093b CH |
7226 | struct iwl3945_tx_queue *txq; |
7227 | struct iwl3945_queue *q; | |
b481de9c ZY |
7228 | unsigned long flags; |
7229 | ||
7230 | IWL_DEBUG_MAC80211("enter\n"); | |
7231 | ||
bb8c093b | 7232 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7233 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7234 | return -EIO; | |
7235 | } | |
7236 | ||
7237 | spin_lock_irqsave(&priv->lock, flags); | |
7238 | ||
7239 | for (i = 0; i < AC_NUM; i++) { | |
7240 | txq = &priv->txq[i]; | |
7241 | q = &txq->q; | |
bb8c093b | 7242 | avail = iwl3945_queue_space(q); |
b481de9c | 7243 | |
57ffc589 JB |
7244 | stats[i].len = q->n_window - avail; |
7245 | stats[i].limit = q->n_window - q->high_mark; | |
7246 | stats[i].count = q->n_window; | |
b481de9c ZY |
7247 | |
7248 | } | |
7249 | spin_unlock_irqrestore(&priv->lock, flags); | |
7250 | ||
7251 | IWL_DEBUG_MAC80211("leave\n"); | |
7252 | ||
7253 | return 0; | |
7254 | } | |
7255 | ||
bb8c093b | 7256 | static int iwl3945_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7257 | struct ieee80211_low_level_stats *stats) |
7258 | { | |
7259 | IWL_DEBUG_MAC80211("enter\n"); | |
7260 | IWL_DEBUG_MAC80211("leave\n"); | |
7261 | ||
7262 | return 0; | |
7263 | } | |
7264 | ||
bb8c093b | 7265 | static u64 iwl3945_mac_get_tsf(struct ieee80211_hw *hw) |
b481de9c ZY |
7266 | { |
7267 | IWL_DEBUG_MAC80211("enter\n"); | |
7268 | IWL_DEBUG_MAC80211("leave\n"); | |
7269 | ||
7270 | return 0; | |
7271 | } | |
7272 | ||
bb8c093b | 7273 | static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 7274 | { |
bb8c093b | 7275 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7276 | unsigned long flags; |
7277 | ||
7278 | mutex_lock(&priv->mutex); | |
7279 | IWL_DEBUG_MAC80211("enter\n"); | |
7280 | ||
bb8c093b | 7281 | iwl3945_reset_qos(priv); |
292ae174 | 7282 | |
b481de9c ZY |
7283 | cancel_delayed_work(&priv->post_associate); |
7284 | ||
7285 | spin_lock_irqsave(&priv->lock, flags); | |
7286 | priv->assoc_id = 0; | |
7287 | priv->assoc_capability = 0; | |
7288 | priv->call_post_assoc_from_beacon = 0; | |
7289 | ||
7290 | /* new association get rid of ibss beacon skb */ | |
7291 | if (priv->ibss_beacon) | |
7292 | dev_kfree_skb(priv->ibss_beacon); | |
7293 | ||
7294 | priv->ibss_beacon = NULL; | |
7295 | ||
7296 | priv->beacon_int = priv->hw->conf.beacon_int; | |
7297 | priv->timestamp1 = 0; | |
7298 | priv->timestamp0 = 0; | |
7299 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA)) | |
7300 | priv->beacon_int = 0; | |
7301 | ||
7302 | spin_unlock_irqrestore(&priv->lock, flags); | |
7303 | ||
fde3571f MA |
7304 | if (!iwl3945_is_ready_rf(priv)) { |
7305 | IWL_DEBUG_MAC80211("leave - not ready\n"); | |
7306 | mutex_unlock(&priv->mutex); | |
7307 | return; | |
7308 | } | |
7309 | ||
15e869d8 MA |
7310 | /* we are restarting association process |
7311 | * clear RXON_FILTER_ASSOC_MSK bit | |
7312 | */ | |
7313 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
bb8c093b | 7314 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7315 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 7316 | iwl3945_commit_rxon(priv); |
15e869d8 MA |
7317 | } |
7318 | ||
b481de9c ZY |
7319 | /* Per mac80211.h: This is only used in IBSS mode... */ |
7320 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
15e869d8 | 7321 | |
b481de9c ZY |
7322 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
7323 | mutex_unlock(&priv->mutex); | |
7324 | return; | |
b481de9c ZY |
7325 | } |
7326 | ||
bb8c093b | 7327 | iwl3945_set_rate(priv); |
b481de9c ZY |
7328 | |
7329 | mutex_unlock(&priv->mutex); | |
7330 | ||
7331 | IWL_DEBUG_MAC80211("leave\n"); | |
7332 | ||
7333 | } | |
7334 | ||
e039fa4a | 7335 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 7336 | { |
bb8c093b | 7337 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7338 | unsigned long flags; |
7339 | ||
7340 | mutex_lock(&priv->mutex); | |
7341 | IWL_DEBUG_MAC80211("enter\n"); | |
7342 | ||
bb8c093b | 7343 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7344 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7345 | mutex_unlock(&priv->mutex); | |
7346 | return -EIO; | |
7347 | } | |
7348 | ||
7349 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
7350 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); | |
7351 | mutex_unlock(&priv->mutex); | |
7352 | return -EIO; | |
7353 | } | |
7354 | ||
7355 | spin_lock_irqsave(&priv->lock, flags); | |
7356 | ||
7357 | if (priv->ibss_beacon) | |
7358 | dev_kfree_skb(priv->ibss_beacon); | |
7359 | ||
7360 | priv->ibss_beacon = skb; | |
7361 | ||
7362 | priv->assoc_id = 0; | |
7363 | ||
7364 | IWL_DEBUG_MAC80211("leave\n"); | |
7365 | spin_unlock_irqrestore(&priv->lock, flags); | |
7366 | ||
bb8c093b | 7367 | iwl3945_reset_qos(priv); |
b481de9c ZY |
7368 | |
7369 | queue_work(priv->workqueue, &priv->post_associate.work); | |
7370 | ||
7371 | mutex_unlock(&priv->mutex); | |
7372 | ||
7373 | return 0; | |
7374 | } | |
7375 | ||
7376 | /***************************************************************************** | |
7377 | * | |
7378 | * sysfs attributes | |
7379 | * | |
7380 | *****************************************************************************/ | |
7381 | ||
c8b0e6e1 | 7382 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
7383 | |
7384 | /* | |
7385 | * The following adds a new attribute to the sysfs representation | |
7386 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
7387 | * used for controlling the debug level. | |
7388 | * | |
7389 | * See the level definitions in iwl for details. | |
7390 | */ | |
7391 | ||
7392 | static ssize_t show_debug_level(struct device_driver *d, char *buf) | |
7393 | { | |
bb8c093b | 7394 | return sprintf(buf, "0x%08X\n", iwl3945_debug_level); |
b481de9c ZY |
7395 | } |
7396 | static ssize_t store_debug_level(struct device_driver *d, | |
7397 | const char *buf, size_t count) | |
7398 | { | |
7399 | char *p = (char *)buf; | |
7400 | u32 val; | |
7401 | ||
7402 | val = simple_strtoul(p, &p, 0); | |
7403 | if (p == buf) | |
7404 | printk(KERN_INFO DRV_NAME | |
7405 | ": %s is not in hex or decimal form.\n", buf); | |
7406 | else | |
bb8c093b | 7407 | iwl3945_debug_level = val; |
b481de9c ZY |
7408 | |
7409 | return strnlen(buf, count); | |
7410 | } | |
7411 | ||
7412 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
7413 | show_debug_level, store_debug_level); | |
7414 | ||
c8b0e6e1 | 7415 | #endif /* CONFIG_IWL3945_DEBUG */ |
b481de9c | 7416 | |
b481de9c ZY |
7417 | static ssize_t show_temperature(struct device *d, |
7418 | struct device_attribute *attr, char *buf) | |
7419 | { | |
bb8c093b | 7420 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c | 7421 | |
bb8c093b | 7422 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7423 | return -EAGAIN; |
7424 | ||
bb8c093b | 7425 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
7426 | } |
7427 | ||
7428 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
7429 | ||
7430 | static ssize_t show_rs_window(struct device *d, | |
7431 | struct device_attribute *attr, | |
7432 | char *buf) | |
7433 | { | |
bb8c093b CH |
7434 | struct iwl3945_priv *priv = d->driver_data; |
7435 | return iwl3945_fill_rs_info(priv->hw, buf, IWL_AP_ID); | |
b481de9c ZY |
7436 | } |
7437 | static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL); | |
7438 | ||
7439 | static ssize_t show_tx_power(struct device *d, | |
7440 | struct device_attribute *attr, char *buf) | |
7441 | { | |
bb8c093b | 7442 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7443 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
7444 | } | |
7445 | ||
7446 | static ssize_t store_tx_power(struct device *d, | |
7447 | struct device_attribute *attr, | |
7448 | const char *buf, size_t count) | |
7449 | { | |
bb8c093b | 7450 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7451 | char *p = (char *)buf; |
7452 | u32 val; | |
7453 | ||
7454 | val = simple_strtoul(p, &p, 10); | |
7455 | if (p == buf) | |
7456 | printk(KERN_INFO DRV_NAME | |
7457 | ": %s is not in decimal form.\n", buf); | |
7458 | else | |
bb8c093b | 7459 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
7460 | |
7461 | return count; | |
7462 | } | |
7463 | ||
7464 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
7465 | ||
7466 | static ssize_t show_flags(struct device *d, | |
7467 | struct device_attribute *attr, char *buf) | |
7468 | { | |
bb8c093b | 7469 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7470 | |
7471 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
7472 | } | |
7473 | ||
7474 | static ssize_t store_flags(struct device *d, | |
7475 | struct device_attribute *attr, | |
7476 | const char *buf, size_t count) | |
7477 | { | |
bb8c093b | 7478 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7479 | u32 flags = simple_strtoul(buf, NULL, 0); |
7480 | ||
7481 | mutex_lock(&priv->mutex); | |
7482 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
7483 | /* Cancel any currently running scans... */ | |
bb8c093b | 7484 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7485 | IWL_WARNING("Could not cancel scan.\n"); |
7486 | else { | |
7487 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
7488 | flags); | |
7489 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 7490 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7491 | } |
7492 | } | |
7493 | mutex_unlock(&priv->mutex); | |
7494 | ||
7495 | return count; | |
7496 | } | |
7497 | ||
7498 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
7499 | ||
7500 | static ssize_t show_filter_flags(struct device *d, | |
7501 | struct device_attribute *attr, char *buf) | |
7502 | { | |
bb8c093b | 7503 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7504 | |
7505 | return sprintf(buf, "0x%04X\n", | |
7506 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
7507 | } | |
7508 | ||
7509 | static ssize_t store_filter_flags(struct device *d, | |
7510 | struct device_attribute *attr, | |
7511 | const char *buf, size_t count) | |
7512 | { | |
bb8c093b | 7513 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7514 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
7515 | ||
7516 | mutex_lock(&priv->mutex); | |
7517 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
7518 | /* Cancel any currently running scans... */ | |
bb8c093b | 7519 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7520 | IWL_WARNING("Could not cancel scan.\n"); |
7521 | else { | |
7522 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
7523 | "0x%04X\n", filter_flags); | |
7524 | priv->staging_rxon.filter_flags = | |
7525 | cpu_to_le32(filter_flags); | |
bb8c093b | 7526 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7527 | } |
7528 | } | |
7529 | mutex_unlock(&priv->mutex); | |
7530 | ||
7531 | return count; | |
7532 | } | |
7533 | ||
7534 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
7535 | store_filter_flags); | |
7536 | ||
c8b0e6e1 | 7537 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7538 | |
7539 | static ssize_t show_measurement(struct device *d, | |
7540 | struct device_attribute *attr, char *buf) | |
7541 | { | |
bb8c093b CH |
7542 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7543 | struct iwl3945_spectrum_notification measure_report; | |
b481de9c ZY |
7544 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
7545 | u8 *data = (u8 *) & measure_report; | |
7546 | unsigned long flags; | |
7547 | ||
7548 | spin_lock_irqsave(&priv->lock, flags); | |
7549 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
7550 | spin_unlock_irqrestore(&priv->lock, flags); | |
7551 | return 0; | |
7552 | } | |
7553 | memcpy(&measure_report, &priv->measure_report, size); | |
7554 | priv->measurement_status = 0; | |
7555 | spin_unlock_irqrestore(&priv->lock, flags); | |
7556 | ||
7557 | while (size && (PAGE_SIZE - len)) { | |
7558 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7559 | PAGE_SIZE - len, 1); | |
7560 | len = strlen(buf); | |
7561 | if (PAGE_SIZE - len) | |
7562 | buf[len++] = '\n'; | |
7563 | ||
7564 | ofs += 16; | |
7565 | size -= min(size, 16U); | |
7566 | } | |
7567 | ||
7568 | return len; | |
7569 | } | |
7570 | ||
7571 | static ssize_t store_measurement(struct device *d, | |
7572 | struct device_attribute *attr, | |
7573 | const char *buf, size_t count) | |
7574 | { | |
bb8c093b | 7575 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7576 | struct ieee80211_measurement_params params = { |
7577 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
7578 | .start_time = cpu_to_le64(priv->last_tsf), | |
7579 | .duration = cpu_to_le16(1), | |
7580 | }; | |
7581 | u8 type = IWL_MEASURE_BASIC; | |
7582 | u8 buffer[32]; | |
7583 | u8 channel; | |
7584 | ||
7585 | if (count) { | |
7586 | char *p = buffer; | |
7587 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
7588 | channel = simple_strtoul(p, NULL, 0); | |
7589 | if (channel) | |
7590 | params.channel = channel; | |
7591 | ||
7592 | p = buffer; | |
7593 | while (*p && *p != ' ') | |
7594 | p++; | |
7595 | if (*p) | |
7596 | type = simple_strtoul(p + 1, NULL, 0); | |
7597 | } | |
7598 | ||
7599 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
7600 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 7601 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
7602 | |
7603 | return count; | |
7604 | } | |
7605 | ||
7606 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
7607 | show_measurement, store_measurement); | |
c8b0e6e1 | 7608 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
b481de9c | 7609 | |
b481de9c ZY |
7610 | static ssize_t store_retry_rate(struct device *d, |
7611 | struct device_attribute *attr, | |
7612 | const char *buf, size_t count) | |
7613 | { | |
bb8c093b | 7614 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7615 | |
7616 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
7617 | if (priv->retry_rate <= 0) | |
7618 | priv->retry_rate = 1; | |
7619 | ||
7620 | return count; | |
7621 | } | |
7622 | ||
7623 | static ssize_t show_retry_rate(struct device *d, | |
7624 | struct device_attribute *attr, char *buf) | |
7625 | { | |
bb8c093b | 7626 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7627 | return sprintf(buf, "%d", priv->retry_rate); |
7628 | } | |
7629 | ||
7630 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
7631 | store_retry_rate); | |
7632 | ||
7633 | static ssize_t store_power_level(struct device *d, | |
7634 | struct device_attribute *attr, | |
7635 | const char *buf, size_t count) | |
7636 | { | |
bb8c093b | 7637 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7638 | int rc; |
7639 | int mode; | |
7640 | ||
7641 | mode = simple_strtoul(buf, NULL, 0); | |
7642 | mutex_lock(&priv->mutex); | |
7643 | ||
bb8c093b | 7644 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
7645 | rc = -EAGAIN; |
7646 | goto out; | |
7647 | } | |
7648 | ||
7649 | if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC)) | |
7650 | mode = IWL_POWER_AC; | |
7651 | else | |
7652 | mode |= IWL_POWER_ENABLED; | |
7653 | ||
7654 | if (mode != priv->power_mode) { | |
bb8c093b | 7655 | rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode)); |
b481de9c ZY |
7656 | if (rc) { |
7657 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
7658 | goto out; | |
7659 | } | |
7660 | priv->power_mode = mode; | |
7661 | } | |
7662 | ||
7663 | rc = count; | |
7664 | ||
7665 | out: | |
7666 | mutex_unlock(&priv->mutex); | |
7667 | return rc; | |
7668 | } | |
7669 | ||
7670 | #define MAX_WX_STRING 80 | |
7671 | ||
7672 | /* Values are in microsecond */ | |
7673 | static const s32 timeout_duration[] = { | |
7674 | 350000, | |
7675 | 250000, | |
7676 | 75000, | |
7677 | 37000, | |
7678 | 25000, | |
7679 | }; | |
7680 | static const s32 period_duration[] = { | |
7681 | 400000, | |
7682 | 700000, | |
7683 | 1000000, | |
7684 | 1000000, | |
7685 | 1000000 | |
7686 | }; | |
7687 | ||
7688 | static ssize_t show_power_level(struct device *d, | |
7689 | struct device_attribute *attr, char *buf) | |
7690 | { | |
bb8c093b | 7691 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7692 | int level = IWL_POWER_LEVEL(priv->power_mode); |
7693 | char *p = buf; | |
7694 | ||
7695 | p += sprintf(p, "%d ", level); | |
7696 | switch (level) { | |
7697 | case IWL_POWER_MODE_CAM: | |
7698 | case IWL_POWER_AC: | |
7699 | p += sprintf(p, "(AC)"); | |
7700 | break; | |
7701 | case IWL_POWER_BATTERY: | |
7702 | p += sprintf(p, "(BATTERY)"); | |
7703 | break; | |
7704 | default: | |
7705 | p += sprintf(p, | |
7706 | "(Timeout %dms, Period %dms)", | |
7707 | timeout_duration[level - 1] / 1000, | |
7708 | period_duration[level - 1] / 1000); | |
7709 | } | |
7710 | ||
7711 | if (!(priv->power_mode & IWL_POWER_ENABLED)) | |
7712 | p += sprintf(p, " OFF\n"); | |
7713 | else | |
7714 | p += sprintf(p, " \n"); | |
7715 | ||
7716 | return (p - buf + 1); | |
7717 | ||
7718 | } | |
7719 | ||
7720 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
7721 | store_power_level); | |
7722 | ||
7723 | static ssize_t show_channels(struct device *d, | |
7724 | struct device_attribute *attr, char *buf) | |
7725 | { | |
8318d78a JB |
7726 | /* all this shit doesn't belong into sysfs anyway */ |
7727 | return 0; | |
b481de9c ZY |
7728 | } |
7729 | ||
7730 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
7731 | ||
7732 | static ssize_t show_statistics(struct device *d, | |
7733 | struct device_attribute *attr, char *buf) | |
7734 | { | |
bb8c093b CH |
7735 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7736 | u32 size = sizeof(struct iwl3945_notif_statistics); | |
b481de9c ZY |
7737 | u32 len = 0, ofs = 0; |
7738 | u8 *data = (u8 *) & priv->statistics; | |
7739 | int rc = 0; | |
7740 | ||
bb8c093b | 7741 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7742 | return -EAGAIN; |
7743 | ||
7744 | mutex_lock(&priv->mutex); | |
bb8c093b | 7745 | rc = iwl3945_send_statistics_request(priv); |
b481de9c ZY |
7746 | mutex_unlock(&priv->mutex); |
7747 | ||
7748 | if (rc) { | |
7749 | len = sprintf(buf, | |
7750 | "Error sending statistics request: 0x%08X\n", rc); | |
7751 | return len; | |
7752 | } | |
7753 | ||
7754 | while (size && (PAGE_SIZE - len)) { | |
7755 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7756 | PAGE_SIZE - len, 1); | |
7757 | len = strlen(buf); | |
7758 | if (PAGE_SIZE - len) | |
7759 | buf[len++] = '\n'; | |
7760 | ||
7761 | ofs += 16; | |
7762 | size -= min(size, 16U); | |
7763 | } | |
7764 | ||
7765 | return len; | |
7766 | } | |
7767 | ||
7768 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
7769 | ||
7770 | static ssize_t show_antenna(struct device *d, | |
7771 | struct device_attribute *attr, char *buf) | |
7772 | { | |
bb8c093b | 7773 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c | 7774 | |
bb8c093b | 7775 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7776 | return -EAGAIN; |
7777 | ||
7778 | return sprintf(buf, "%d\n", priv->antenna); | |
7779 | } | |
7780 | ||
7781 | static ssize_t store_antenna(struct device *d, | |
7782 | struct device_attribute *attr, | |
7783 | const char *buf, size_t count) | |
7784 | { | |
7785 | int ant; | |
bb8c093b | 7786 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7787 | |
7788 | if (count == 0) | |
7789 | return 0; | |
7790 | ||
7791 | if (sscanf(buf, "%1i", &ant) != 1) { | |
7792 | IWL_DEBUG_INFO("not in hex or decimal form.\n"); | |
7793 | return count; | |
7794 | } | |
7795 | ||
7796 | if ((ant >= 0) && (ant <= 2)) { | |
7797 | IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant); | |
bb8c093b | 7798 | priv->antenna = (enum iwl3945_antenna)ant; |
b481de9c ZY |
7799 | } else |
7800 | IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant); | |
7801 | ||
7802 | ||
7803 | return count; | |
7804 | } | |
7805 | ||
7806 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
7807 | ||
7808 | static ssize_t show_status(struct device *d, | |
7809 | struct device_attribute *attr, char *buf) | |
7810 | { | |
bb8c093b CH |
7811 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
7812 | if (!iwl3945_is_alive(priv)) | |
b481de9c ZY |
7813 | return -EAGAIN; |
7814 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
7815 | } | |
7816 | ||
7817 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
7818 | ||
7819 | static ssize_t dump_error_log(struct device *d, | |
7820 | struct device_attribute *attr, | |
7821 | const char *buf, size_t count) | |
7822 | { | |
7823 | char *p = (char *)buf; | |
7824 | ||
7825 | if (p[0] == '1') | |
bb8c093b | 7826 | iwl3945_dump_nic_error_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7827 | |
7828 | return strnlen(buf, count); | |
7829 | } | |
7830 | ||
7831 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
7832 | ||
7833 | static ssize_t dump_event_log(struct device *d, | |
7834 | struct device_attribute *attr, | |
7835 | const char *buf, size_t count) | |
7836 | { | |
7837 | char *p = (char *)buf; | |
7838 | ||
7839 | if (p[0] == '1') | |
bb8c093b | 7840 | iwl3945_dump_nic_event_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7841 | |
7842 | return strnlen(buf, count); | |
7843 | } | |
7844 | ||
7845 | static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); | |
7846 | ||
7847 | /***************************************************************************** | |
7848 | * | |
7849 | * driver setup and teardown | |
7850 | * | |
7851 | *****************************************************************************/ | |
7852 | ||
bb8c093b | 7853 | static void iwl3945_setup_deferred_work(struct iwl3945_priv *priv) |
b481de9c ZY |
7854 | { |
7855 | priv->workqueue = create_workqueue(DRV_NAME); | |
7856 | ||
7857 | init_waitqueue_head(&priv->wait_command_queue); | |
7858 | ||
bb8c093b CH |
7859 | INIT_WORK(&priv->up, iwl3945_bg_up); |
7860 | INIT_WORK(&priv->restart, iwl3945_bg_restart); | |
7861 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
7862 | INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed); | |
7863 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
7864 | INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan); | |
7865 | INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill); | |
7866 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); | |
5ec03976 | 7867 | INIT_WORK(&priv->set_monitor, iwl3945_bg_set_monitor); |
bb8c093b CH |
7868 | INIT_DELAYED_WORK(&priv->post_associate, iwl3945_bg_post_associate); |
7869 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); | |
7870 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
7871 | INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check); | |
7872 | ||
7873 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
7874 | |
7875 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 7876 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
7877 | } |
7878 | ||
bb8c093b | 7879 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv) |
b481de9c | 7880 | { |
bb8c093b | 7881 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 7882 | |
e47eb6ad | 7883 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
7884 | cancel_delayed_work(&priv->scan_check); |
7885 | cancel_delayed_work(&priv->alive_start); | |
7886 | cancel_delayed_work(&priv->post_associate); | |
7887 | cancel_work_sync(&priv->beacon_update); | |
7888 | } | |
7889 | ||
bb8c093b | 7890 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
7891 | &dev_attr_antenna.attr, |
7892 | &dev_attr_channels.attr, | |
7893 | &dev_attr_dump_errors.attr, | |
7894 | &dev_attr_dump_events.attr, | |
7895 | &dev_attr_flags.attr, | |
7896 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 7897 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7898 | &dev_attr_measurement.attr, |
7899 | #endif | |
7900 | &dev_attr_power_level.attr, | |
b481de9c | 7901 | &dev_attr_retry_rate.attr, |
b481de9c ZY |
7902 | &dev_attr_rs_window.attr, |
7903 | &dev_attr_statistics.attr, | |
7904 | &dev_attr_status.attr, | |
7905 | &dev_attr_temperature.attr, | |
b481de9c ZY |
7906 | &dev_attr_tx_power.attr, |
7907 | ||
7908 | NULL | |
7909 | }; | |
7910 | ||
bb8c093b | 7911 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 7912 | .name = NULL, /* put in device directory */ |
bb8c093b | 7913 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
7914 | }; |
7915 | ||
bb8c093b CH |
7916 | static struct ieee80211_ops iwl3945_hw_ops = { |
7917 | .tx = iwl3945_mac_tx, | |
7918 | .start = iwl3945_mac_start, | |
7919 | .stop = iwl3945_mac_stop, | |
7920 | .add_interface = iwl3945_mac_add_interface, | |
7921 | .remove_interface = iwl3945_mac_remove_interface, | |
7922 | .config = iwl3945_mac_config, | |
7923 | .config_interface = iwl3945_mac_config_interface, | |
7924 | .configure_filter = iwl3945_configure_filter, | |
7925 | .set_key = iwl3945_mac_set_key, | |
7926 | .get_stats = iwl3945_mac_get_stats, | |
7927 | .get_tx_stats = iwl3945_mac_get_tx_stats, | |
7928 | .conf_tx = iwl3945_mac_conf_tx, | |
7929 | .get_tsf = iwl3945_mac_get_tsf, | |
7930 | .reset_tsf = iwl3945_mac_reset_tsf, | |
7931 | .beacon_update = iwl3945_mac_beacon_update, | |
7932 | .hw_scan = iwl3945_mac_hw_scan | |
b481de9c ZY |
7933 | }; |
7934 | ||
bb8c093b | 7935 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
7936 | { |
7937 | int err = 0; | |
bb8c093b | 7938 | struct iwl3945_priv *priv; |
b481de9c | 7939 | struct ieee80211_hw *hw; |
82b9a121 | 7940 | struct iwl_3945_cfg *cfg = (struct iwl_3945_cfg *)(ent->driver_data); |
b481de9c | 7941 | int i; |
0359facc | 7942 | unsigned long flags; |
5a66926a | 7943 | DECLARE_MAC_BUF(mac); |
b481de9c | 7944 | |
6440adb5 BC |
7945 | /* Disabling hardware scan means that mac80211 will perform scans |
7946 | * "the hard way", rather than using device's scan. */ | |
bb8c093b | 7947 | if (iwl3945_param_disable_hw_scan) { |
b481de9c | 7948 | IWL_DEBUG_INFO("Disabling hw_scan\n"); |
bb8c093b | 7949 | iwl3945_hw_ops.hw_scan = NULL; |
b481de9c ZY |
7950 | } |
7951 | ||
dfe7d458 | 7952 | if ((iwl3945_param_queues_num > IWL39_MAX_NUM_QUEUES) || |
bb8c093b | 7953 | (iwl3945_param_queues_num < IWL_MIN_NUM_QUEUES)) { |
b481de9c | 7954 | IWL_ERROR("invalid queues_num, should be between %d and %d\n", |
dfe7d458 | 7955 | IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES); |
b481de9c ZY |
7956 | err = -EINVAL; |
7957 | goto out; | |
7958 | } | |
7959 | ||
7960 | /* mac80211 allocates memory for this device instance, including | |
7961 | * space for this driver's private structure */ | |
bb8c093b | 7962 | hw = ieee80211_alloc_hw(sizeof(struct iwl3945_priv), &iwl3945_hw_ops); |
b481de9c ZY |
7963 | if (hw == NULL) { |
7964 | IWL_ERROR("Can not allocate network device\n"); | |
7965 | err = -ENOMEM; | |
7966 | goto out; | |
7967 | } | |
7968 | SET_IEEE80211_DEV(hw, &pdev->dev); | |
7969 | ||
f51359a8 JB |
7970 | hw->rate_control_algorithm = "iwl-3945-rs"; |
7971 | ||
b481de9c ZY |
7972 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); |
7973 | priv = hw->priv; | |
7974 | priv->hw = hw; | |
7975 | ||
7976 | priv->pci_dev = pdev; | |
82b9a121 | 7977 | priv->cfg = cfg; |
6440adb5 BC |
7978 | |
7979 | /* Select antenna (may be helpful if only one antenna is connected) */ | |
bb8c093b | 7980 | priv->antenna = (enum iwl3945_antenna)iwl3945_param_antenna; |
c8b0e6e1 | 7981 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 7982 | iwl3945_debug_level = iwl3945_param_debug; |
b481de9c ZY |
7983 | atomic_set(&priv->restrict_refcnt, 0); |
7984 | #endif | |
7985 | priv->retry_rate = 1; | |
7986 | ||
7987 | priv->ibss_beacon = NULL; | |
7988 | ||
566bfe5a BR |
7989 | /* Tell mac80211 our characteristics */ |
7990 | hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE | | |
7991 | IEEE80211_HW_SIGNAL_DBM | | |
7992 | IEEE80211_HW_NOISE_DBM; | |
b481de9c | 7993 | |
6440adb5 | 7994 | /* 4 EDCA QOS priorities */ |
b481de9c ZY |
7995 | hw->queues = 4; |
7996 | ||
7997 | spin_lock_init(&priv->lock); | |
7998 | spin_lock_init(&priv->power_data.lock); | |
7999 | spin_lock_init(&priv->sta_lock); | |
8000 | spin_lock_init(&priv->hcmd_lock); | |
8001 | ||
8002 | for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) | |
8003 | INIT_LIST_HEAD(&priv->ibss_mac_hash[i]); | |
8004 | ||
8005 | INIT_LIST_HEAD(&priv->free_frames); | |
8006 | ||
8007 | mutex_init(&priv->mutex); | |
8008 | if (pci_enable_device(pdev)) { | |
8009 | err = -ENODEV; | |
8010 | goto out_ieee80211_free_hw; | |
8011 | } | |
8012 | ||
8013 | pci_set_master(pdev); | |
8014 | ||
6440adb5 | 8015 | /* Clear the driver's (not device's) station table */ |
bb8c093b | 8016 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
8017 | |
8018 | priv->data_retry_limit = -1; | |
8019 | priv->ieee_channels = NULL; | |
8020 | priv->ieee_rates = NULL; | |
8318d78a | 8021 | priv->band = IEEE80211_BAND_2GHZ; |
b481de9c ZY |
8022 | |
8023 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
8024 | if (!err) | |
8025 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
8026 | if (err) { | |
8027 | printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); | |
8028 | goto out_pci_disable_device; | |
8029 | } | |
8030 | ||
8031 | pci_set_drvdata(pdev, priv); | |
8032 | err = pci_request_regions(pdev, DRV_NAME); | |
8033 | if (err) | |
8034 | goto out_pci_disable_device; | |
6440adb5 | 8035 | |
b481de9c ZY |
8036 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
8037 | * PCI Tx retries from interfering with C3 CPU state */ | |
8038 | pci_write_config_byte(pdev, 0x41, 0x00); | |
6440adb5 | 8039 | |
b481de9c ZY |
8040 | priv->hw_base = pci_iomap(pdev, 0, 0); |
8041 | if (!priv->hw_base) { | |
8042 | err = -ENODEV; | |
8043 | goto out_pci_release_regions; | |
8044 | } | |
8045 | ||
8046 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
8047 | (unsigned long long) pci_resource_len(pdev, 0)); | |
8048 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
8049 | ||
8050 | /* Initialize module parameter values here */ | |
8051 | ||
6440adb5 | 8052 | /* Disable radio (SW RF KILL) via parameter when loading driver */ |
bb8c093b | 8053 | if (iwl3945_param_disable) { |
b481de9c ZY |
8054 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
8055 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
8056 | } | |
8057 | ||
8058 | priv->iw_mode = IEEE80211_IF_TYPE_STA; | |
8059 | ||
b481de9c | 8060 | printk(KERN_INFO DRV_NAME |
82b9a121 | 8061 | ": Detected Intel Wireless WiFi Link %s\n", priv->cfg->name); |
b481de9c ZY |
8062 | |
8063 | /* Device-specific setup */ | |
bb8c093b | 8064 | if (iwl3945_hw_set_hw_setting(priv)) { |
b481de9c | 8065 | IWL_ERROR("failed to set hw settings\n"); |
b481de9c ZY |
8066 | goto out_iounmap; |
8067 | } | |
8068 | ||
bb8c093b | 8069 | if (iwl3945_param_qos_enable) |
b481de9c ZY |
8070 | priv->qos_data.qos_enable = 1; |
8071 | ||
bb8c093b | 8072 | iwl3945_reset_qos(priv); |
b481de9c ZY |
8073 | |
8074 | priv->qos_data.qos_active = 0; | |
8075 | priv->qos_data.qos_cap.val = 0; | |
b481de9c | 8076 | |
8318d78a | 8077 | iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); |
bb8c093b CH |
8078 | iwl3945_setup_deferred_work(priv); |
8079 | iwl3945_setup_rx_handlers(priv); | |
b481de9c ZY |
8080 | |
8081 | priv->rates_mask = IWL_RATES_MASK; | |
8082 | /* If power management is turned on, default to AC mode */ | |
8083 | priv->power_mode = IWL_POWER_AC; | |
8084 | priv->user_txpower_limit = IWL_DEFAULT_TX_POWER; | |
8085 | ||
0359facc | 8086 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 8087 | iwl3945_disable_interrupts(priv); |
0359facc | 8088 | spin_unlock_irqrestore(&priv->lock, flags); |
49df2b33 | 8089 | |
bb8c093b | 8090 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c ZY |
8091 | if (err) { |
8092 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
b481de9c ZY |
8093 | goto out_release_irq; |
8094 | } | |
8095 | ||
5a66926a ZY |
8096 | /* nic init */ |
8097 | iwl3945_set_bit(priv, CSR_GIO_CHICKEN_BITS, | |
8098 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); | |
8099 | ||
8100 | iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); | |
8101 | err = iwl3945_poll_bit(priv, CSR_GP_CNTRL, | |
8102 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, | |
8103 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
8104 | if (err < 0) { | |
8105 | IWL_DEBUG_INFO("Failed to init the card\n"); | |
8106 | goto out_remove_sysfs; | |
8107 | } | |
8108 | /* Read the EEPROM */ | |
8109 | err = iwl3945_eeprom_init(priv); | |
b481de9c | 8110 | if (err) { |
5a66926a ZY |
8111 | IWL_ERROR("Unable to init EEPROM\n"); |
8112 | goto out_remove_sysfs; | |
b481de9c | 8113 | } |
5a66926a ZY |
8114 | /* MAC Address location in EEPROM same for 3945/4965 */ |
8115 | get_eeprom_mac(priv, priv->mac_addr); | |
8116 | IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr)); | |
8117 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
b481de9c | 8118 | |
849e0dce RC |
8119 | err = iwl3945_init_channel_map(priv); |
8120 | if (err) { | |
8121 | IWL_ERROR("initializing regulatory failed: %d\n", err); | |
8122 | goto out_remove_sysfs; | |
8123 | } | |
8124 | ||
8125 | err = iwl3945_init_geos(priv); | |
8126 | if (err) { | |
8127 | IWL_ERROR("initializing geos failed: %d\n", err); | |
8128 | goto out_free_channel_map; | |
8129 | } | |
849e0dce | 8130 | |
5a66926a ZY |
8131 | err = ieee80211_register_hw(priv->hw); |
8132 | if (err) { | |
8133 | IWL_ERROR("Failed to register network device (error %d)\n", err); | |
849e0dce | 8134 | goto out_free_geos; |
5a66926a | 8135 | } |
b481de9c | 8136 | |
5a66926a ZY |
8137 | priv->hw->conf.beacon_int = 100; |
8138 | priv->mac80211_registered = 1; | |
8139 | pci_save_state(pdev); | |
8140 | pci_disable_device(pdev); | |
b481de9c | 8141 | |
ebef2008 AK |
8142 | err = iwl3945_rfkill_init(priv); |
8143 | if (err) | |
8144 | IWL_ERROR("Unable to initialize RFKILL system. " | |
8145 | "Ignoring error: %d\n", err); | |
8146 | ||
b481de9c ZY |
8147 | return 0; |
8148 | ||
849e0dce RC |
8149 | out_free_geos: |
8150 | iwl3945_free_geos(priv); | |
8151 | out_free_channel_map: | |
8152 | iwl3945_free_channel_map(priv); | |
5a66926a | 8153 | out_remove_sysfs: |
bb8c093b | 8154 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c ZY |
8155 | |
8156 | out_release_irq: | |
b481de9c ZY |
8157 | destroy_workqueue(priv->workqueue); |
8158 | priv->workqueue = NULL; | |
bb8c093b | 8159 | iwl3945_unset_hw_setting(priv); |
b481de9c ZY |
8160 | |
8161 | out_iounmap: | |
8162 | pci_iounmap(pdev, priv->hw_base); | |
8163 | out_pci_release_regions: | |
8164 | pci_release_regions(pdev); | |
8165 | out_pci_disable_device: | |
8166 | pci_disable_device(pdev); | |
8167 | pci_set_drvdata(pdev, NULL); | |
8168 | out_ieee80211_free_hw: | |
8169 | ieee80211_free_hw(priv->hw); | |
8170 | out: | |
8171 | return err; | |
8172 | } | |
8173 | ||
c83dbf68 | 8174 | static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) |
b481de9c | 8175 | { |
bb8c093b | 8176 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c ZY |
8177 | struct list_head *p, *q; |
8178 | int i; | |
0359facc | 8179 | unsigned long flags; |
b481de9c ZY |
8180 | |
8181 | if (!priv) | |
8182 | return; | |
8183 | ||
8184 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
8185 | ||
b481de9c | 8186 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 8187 | |
bb8c093b | 8188 | iwl3945_down(priv); |
b481de9c | 8189 | |
0359facc MA |
8190 | /* make sure we flush any pending irq or |
8191 | * tasklet for the driver | |
8192 | */ | |
8193 | spin_lock_irqsave(&priv->lock, flags); | |
8194 | iwl3945_disable_interrupts(priv); | |
8195 | spin_unlock_irqrestore(&priv->lock, flags); | |
8196 | ||
8197 | iwl_synchronize_irq(priv); | |
8198 | ||
b481de9c ZY |
8199 | /* Free MAC hash list for ADHOC */ |
8200 | for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) { | |
8201 | list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { | |
8202 | list_del(p); | |
bb8c093b | 8203 | kfree(list_entry(p, struct iwl3945_ibss_seq, list)); |
b481de9c ZY |
8204 | } |
8205 | } | |
8206 | ||
bb8c093b | 8207 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 8208 | |
ebef2008 | 8209 | iwl3945_rfkill_unregister(priv); |
bb8c093b | 8210 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
8211 | |
8212 | if (priv->rxq.bd) | |
bb8c093b CH |
8213 | iwl3945_rx_queue_free(priv, &priv->rxq); |
8214 | iwl3945_hw_txq_ctx_free(priv); | |
b481de9c | 8215 | |
bb8c093b CH |
8216 | iwl3945_unset_hw_setting(priv); |
8217 | iwl3945_clear_stations_table(priv); | |
b481de9c ZY |
8218 | |
8219 | if (priv->mac80211_registered) { | |
8220 | ieee80211_unregister_hw(priv->hw); | |
b481de9c ZY |
8221 | } |
8222 | ||
6ef89d0a MA |
8223 | /*netif_stop_queue(dev); */ |
8224 | flush_workqueue(priv->workqueue); | |
8225 | ||
bb8c093b | 8226 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
b481de9c ZY |
8227 | * priv->workqueue... so we can't take down the workqueue |
8228 | * until now... */ | |
8229 | destroy_workqueue(priv->workqueue); | |
8230 | priv->workqueue = NULL; | |
8231 | ||
b481de9c ZY |
8232 | pci_iounmap(pdev, priv->hw_base); |
8233 | pci_release_regions(pdev); | |
8234 | pci_disable_device(pdev); | |
8235 | pci_set_drvdata(pdev, NULL); | |
8236 | ||
849e0dce RC |
8237 | iwl3945_free_channel_map(priv); |
8238 | iwl3945_free_geos(priv); | |
261415f7 | 8239 | kfree(priv->scan); |
b481de9c ZY |
8240 | if (priv->ibss_beacon) |
8241 | dev_kfree_skb(priv->ibss_beacon); | |
8242 | ||
8243 | ieee80211_free_hw(priv->hw); | |
8244 | } | |
8245 | ||
8246 | #ifdef CONFIG_PM | |
8247 | ||
bb8c093b | 8248 | static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 8249 | { |
bb8c093b | 8250 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8251 | |
e655b9f0 ZY |
8252 | if (priv->is_open) { |
8253 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
8254 | iwl3945_mac_stop(priv->hw); | |
8255 | priv->is_open = 1; | |
8256 | } | |
b481de9c | 8257 | |
b481de9c ZY |
8258 | pci_set_power_state(pdev, PCI_D3hot); |
8259 | ||
b481de9c ZY |
8260 | return 0; |
8261 | } | |
8262 | ||
bb8c093b | 8263 | static int iwl3945_pci_resume(struct pci_dev *pdev) |
b481de9c | 8264 | { |
bb8c093b | 8265 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8266 | |
b481de9c | 8267 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 8268 | |
e655b9f0 ZY |
8269 | if (priv->is_open) |
8270 | iwl3945_mac_start(priv->hw); | |
b481de9c | 8271 | |
e655b9f0 | 8272 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
8273 | return 0; |
8274 | } | |
8275 | ||
8276 | #endif /* CONFIG_PM */ | |
8277 | ||
ebef2008 AK |
8278 | /*************** RFKILL FUNCTIONS **********/ |
8279 | #ifdef CONFIG_IWLWIFI_RFKILL | |
8280 | /* software rf-kill from user */ | |
8281 | static int iwl3945_rfkill_soft_rf_kill(void *data, enum rfkill_state state) | |
8282 | { | |
8283 | struct iwl3945_priv *priv = data; | |
8284 | int err = 0; | |
8285 | ||
8286 | if (!priv->rfkill_mngr.rfkill) | |
8287 | return 0; | |
8288 | ||
8289 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
8290 | return 0; | |
8291 | ||
8292 | IWL_DEBUG_RF_KILL("we recieved soft RFKILL set to state %d\n", state); | |
8293 | mutex_lock(&priv->mutex); | |
8294 | ||
8295 | switch (state) { | |
acdfe9b4 | 8296 | case RFKILL_STATE_UNBLOCKED: |
ebef2008 AK |
8297 | iwl3945_radio_kill_sw(priv, 0); |
8298 | /* if HW rf-kill is set dont allow ON state */ | |
8299 | if (iwl3945_is_rfkill(priv)) | |
8300 | err = -EBUSY; | |
8301 | break; | |
acdfe9b4 | 8302 | case RFKILL_STATE_SOFT_BLOCKED: |
ebef2008 AK |
8303 | iwl3945_radio_kill_sw(priv, 1); |
8304 | if (!iwl3945_is_rfkill(priv)) | |
8305 | err = -EBUSY; | |
8306 | break; | |
acdfe9b4 ZY |
8307 | default: |
8308 | IWL_WARNING("we recieved unexpected RFKILL state %d\n", state); | |
8309 | break; | |
ebef2008 AK |
8310 | } |
8311 | mutex_unlock(&priv->mutex); | |
8312 | ||
8313 | return err; | |
8314 | } | |
8315 | ||
8316 | int iwl3945_rfkill_init(struct iwl3945_priv *priv) | |
8317 | { | |
8318 | struct device *device = wiphy_dev(priv->hw->wiphy); | |
8319 | int ret = 0; | |
8320 | ||
8321 | BUG_ON(device == NULL); | |
8322 | ||
8323 | IWL_DEBUG_RF_KILL("Initializing RFKILL.\n"); | |
8324 | priv->rfkill_mngr.rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN); | |
8325 | if (!priv->rfkill_mngr.rfkill) { | |
8326 | IWL_ERROR("Unable to allocate rfkill device.\n"); | |
8327 | ret = -ENOMEM; | |
8328 | goto error; | |
8329 | } | |
8330 | ||
8331 | priv->rfkill_mngr.rfkill->name = priv->cfg->name; | |
8332 | priv->rfkill_mngr.rfkill->data = priv; | |
8333 | priv->rfkill_mngr.rfkill->state = RFKILL_STATE_ON; | |
8334 | priv->rfkill_mngr.rfkill->toggle_radio = iwl3945_rfkill_soft_rf_kill; | |
8335 | priv->rfkill_mngr.rfkill->user_claim_unsupported = 1; | |
8336 | ||
8337 | priv->rfkill_mngr.rfkill->dev.class->suspend = NULL; | |
8338 | priv->rfkill_mngr.rfkill->dev.class->resume = NULL; | |
8339 | ||
8340 | priv->rfkill_mngr.input_dev = input_allocate_device(); | |
8341 | if (!priv->rfkill_mngr.input_dev) { | |
8342 | IWL_ERROR("Unable to allocate rfkill input device.\n"); | |
8343 | ret = -ENOMEM; | |
8344 | goto freed_rfkill; | |
8345 | } | |
8346 | ||
8347 | priv->rfkill_mngr.input_dev->name = priv->cfg->name; | |
8348 | priv->rfkill_mngr.input_dev->phys = wiphy_name(priv->hw->wiphy); | |
8349 | priv->rfkill_mngr.input_dev->id.bustype = BUS_HOST; | |
8350 | priv->rfkill_mngr.input_dev->id.vendor = priv->pci_dev->vendor; | |
8351 | priv->rfkill_mngr.input_dev->dev.parent = device; | |
8352 | priv->rfkill_mngr.input_dev->evbit[0] = BIT(EV_KEY); | |
8353 | set_bit(KEY_WLAN, priv->rfkill_mngr.input_dev->keybit); | |
8354 | ||
8355 | ret = rfkill_register(priv->rfkill_mngr.rfkill); | |
8356 | if (ret) { | |
8357 | IWL_ERROR("Unable to register rfkill: %d\n", ret); | |
8358 | goto free_input_dev; | |
8359 | } | |
8360 | ||
8361 | ret = input_register_device(priv->rfkill_mngr.input_dev); | |
8362 | if (ret) { | |
8363 | IWL_ERROR("Unable to register rfkill input device: %d\n", ret); | |
8364 | goto unregister_rfkill; | |
8365 | } | |
8366 | ||
8367 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8368 | return ret; | |
8369 | ||
8370 | unregister_rfkill: | |
8371 | rfkill_unregister(priv->rfkill_mngr.rfkill); | |
8372 | priv->rfkill_mngr.rfkill = NULL; | |
8373 | ||
8374 | free_input_dev: | |
8375 | input_free_device(priv->rfkill_mngr.input_dev); | |
8376 | priv->rfkill_mngr.input_dev = NULL; | |
8377 | ||
8378 | freed_rfkill: | |
8379 | if (priv->rfkill_mngr.rfkill != NULL) | |
8380 | rfkill_free(priv->rfkill_mngr.rfkill); | |
8381 | priv->rfkill_mngr.rfkill = NULL; | |
8382 | ||
8383 | error: | |
8384 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8385 | return ret; | |
8386 | } | |
8387 | ||
8388 | void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) | |
8389 | { | |
8390 | ||
8391 | if (priv->rfkill_mngr.input_dev) | |
8392 | input_unregister_device(priv->rfkill_mngr.input_dev); | |
8393 | ||
8394 | if (priv->rfkill_mngr.rfkill) | |
8395 | rfkill_unregister(priv->rfkill_mngr.rfkill); | |
8396 | ||
8397 | priv->rfkill_mngr.input_dev = NULL; | |
8398 | priv->rfkill_mngr.rfkill = NULL; | |
8399 | } | |
8400 | ||
8401 | /* set rf-kill to the right state. */ | |
8402 | void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) | |
8403 | { | |
8404 | ||
8405 | if (!priv->rfkill_mngr.rfkill) | |
8406 | return; | |
8407 | ||
8408 | if (!iwl3945_is_rfkill(priv)) | |
8409 | priv->rfkill_mngr.rfkill->state = RFKILL_STATE_ON; | |
8410 | else | |
8411 | priv->rfkill_mngr.rfkill->state = RFKILL_STATE_OFF; | |
8412 | } | |
8413 | #endif | |
8414 | ||
b481de9c ZY |
8415 | /***************************************************************************** |
8416 | * | |
8417 | * driver and module entry point | |
8418 | * | |
8419 | *****************************************************************************/ | |
8420 | ||
bb8c093b | 8421 | static struct pci_driver iwl3945_driver = { |
b481de9c | 8422 | .name = DRV_NAME, |
bb8c093b CH |
8423 | .id_table = iwl3945_hw_card_ids, |
8424 | .probe = iwl3945_pci_probe, | |
8425 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 8426 | #ifdef CONFIG_PM |
bb8c093b CH |
8427 | .suspend = iwl3945_pci_suspend, |
8428 | .resume = iwl3945_pci_resume, | |
b481de9c ZY |
8429 | #endif |
8430 | }; | |
8431 | ||
bb8c093b | 8432 | static int __init iwl3945_init(void) |
b481de9c ZY |
8433 | { |
8434 | ||
8435 | int ret; | |
8436 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
8437 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
8438 | |
8439 | ret = iwl3945_rate_control_register(); | |
8440 | if (ret) { | |
8441 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
8442 | return ret; | |
8443 | } | |
8444 | ||
bb8c093b | 8445 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c ZY |
8446 | if (ret) { |
8447 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 8448 | goto error_register; |
b481de9c | 8449 | } |
c8b0e6e1 | 8450 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8451 | ret = driver_create_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c ZY |
8452 | if (ret) { |
8453 | IWL_ERROR("Unable to create driver sysfs file\n"); | |
897e1cf2 | 8454 | goto error_debug; |
b481de9c ZY |
8455 | } |
8456 | #endif | |
8457 | ||
8458 | return ret; | |
897e1cf2 RC |
8459 | |
8460 | #ifdef CONFIG_IWL3945_DEBUG | |
8461 | error_debug: | |
8462 | pci_unregister_driver(&iwl3945_driver); | |
8463 | #endif | |
8464 | error_register: | |
8465 | iwl3945_rate_control_unregister(); | |
8466 | return ret; | |
b481de9c ZY |
8467 | } |
8468 | ||
bb8c093b | 8469 | static void __exit iwl3945_exit(void) |
b481de9c | 8470 | { |
c8b0e6e1 | 8471 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8472 | driver_remove_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c | 8473 | #endif |
bb8c093b | 8474 | pci_unregister_driver(&iwl3945_driver); |
897e1cf2 | 8475 | iwl3945_rate_control_unregister(); |
b481de9c ZY |
8476 | } |
8477 | ||
bb8c093b | 8478 | module_param_named(antenna, iwl3945_param_antenna, int, 0444); |
b481de9c | 8479 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
bb8c093b | 8480 | module_param_named(disable, iwl3945_param_disable, int, 0444); |
b481de9c | 8481 | MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); |
bb8c093b | 8482 | module_param_named(hwcrypto, iwl3945_param_hwcrypto, int, 0444); |
b481de9c ZY |
8483 | MODULE_PARM_DESC(hwcrypto, |
8484 | "using hardware crypto engine (default 0 [software])\n"); | |
bb8c093b | 8485 | module_param_named(debug, iwl3945_param_debug, int, 0444); |
b481de9c | 8486 | MODULE_PARM_DESC(debug, "debug output mask"); |
bb8c093b | 8487 | module_param_named(disable_hw_scan, iwl3945_param_disable_hw_scan, int, 0444); |
b481de9c ZY |
8488 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
8489 | ||
bb8c093b | 8490 | module_param_named(queues_num, iwl3945_param_queues_num, int, 0444); |
b481de9c ZY |
8491 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
8492 | ||
8493 | /* QoS */ | |
bb8c093b | 8494 | module_param_named(qos_enable, iwl3945_param_qos_enable, int, 0444); |
b481de9c ZY |
8495 | MODULE_PARM_DESC(qos_enable, "enable all QoS functionality"); |
8496 | ||
bb8c093b CH |
8497 | module_exit(iwl3945_exit); |
8498 | module_init(iwl3945_init); |