Commit | Line | Data |
---|---|---|
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: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
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> | |
b481de9c ZY |
32 | #include <linux/init.h> |
33 | #include <linux/pci.h> | |
34 | #include <linux/dma-mapping.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/wireless.h> | |
39 | #include <linux/firmware.h> | |
b481de9c ZY |
40 | #include <linux/etherdevice.h> |
41 | #include <linux/if_arp.h> | |
42 | ||
43 | #include <net/ieee80211_radiotap.h> | |
7e272fcf | 44 | #include <net/lib80211.h> |
b481de9c ZY |
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 | 67 | static int iwl3945_param_disable_hw_scan; /* def: 0 = use 3945's h/w scan */ |
95aa194a | 68 | static u32 iwl3945_param_debug; /* def: 0 = minimal debug log messages */ |
6440adb5 | 69 | static int iwl3945_param_disable; /* def: 0 = enable radio */ |
9fbab516 | 70 | static int iwl3945_param_antenna; /* def: 0 = both antennas (use diversity) */ |
6440adb5 | 71 | int iwl3945_param_hwcrypto; /* def: 0 = use software encryption */ |
dfe7d458 | 72 | int iwl3945_param_queues_num = IWL39_MAX_NUM_QUEUES; /* def: 8 Tx queues */ |
b481de9c ZY |
73 | |
74 | /* | |
75 | * module name, copyright, version, etc. | |
76 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
77 | */ | |
78 | ||
79 | #define DRV_DESCRIPTION \ | |
80 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
81 | ||
c8b0e6e1 | 82 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
83 | #define VD "d" |
84 | #else | |
85 | #define VD | |
86 | #endif | |
87 | ||
c8b0e6e1 | 88 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
89 | #define VS "s" |
90 | #else | |
91 | #define VS | |
92 | #endif | |
93 | ||
b9e0b449 | 94 | #define IWLWIFI_VERSION "1.2.26k" VD VS |
eb7ae89c | 95 | #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation" |
a7b75207 | 96 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
b481de9c ZY |
97 | #define DRV_VERSION IWLWIFI_VERSION |
98 | ||
b481de9c ZY |
99 | |
100 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
101 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 102 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c ZY |
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 | ||
b481de9c ZY |
111 | /*************** DMA-QUEUE-GENERAL-FUNCTIONS ***** |
112 | * DMA services | |
113 | * | |
114 | * Theory of operation | |
115 | * | |
6440adb5 CB |
116 | * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer |
117 | * of buffer descriptors, each of which points to one or more data buffers for | |
118 | * the device to read from or fill. Driver and device exchange status of each | |
119 | * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty | |
120 | * entries in each circular buffer, to protect against confusing empty and full | |
121 | * queue states. | |
122 | * | |
123 | * The device reads or writes the data in the queues via the device's several | |
124 | * DMA/FIFO channels. Each queue is mapped to a single DMA channel. | |
b481de9c ZY |
125 | * |
126 | * For Tx queue, there are low mark and high mark limits. If, after queuing | |
127 | * the packet for Tx, free space become < low mark, Tx queue stopped. When | |
128 | * reclaiming packets (on 'tx done IRQ), if free space become > high mark, | |
129 | * Tx queue resumed. | |
130 | * | |
6440adb5 CB |
131 | * The 3945 operates with six queues: One receive queue, one transmit queue |
132 | * (#4) for sending commands to the device firmware, and four transmit queues | |
133 | * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused. | |
b481de9c ZY |
134 | ***************************************************/ |
135 | ||
c54b679d | 136 | int iwl3945_queue_space(const struct iwl3945_queue *q) |
b481de9c | 137 | { |
fc4b6853 | 138 | int s = q->read_ptr - q->write_ptr; |
b481de9c | 139 | |
fc4b6853 | 140 | if (q->read_ptr > q->write_ptr) |
b481de9c ZY |
141 | s -= q->n_bd; |
142 | ||
143 | if (s <= 0) | |
144 | s += q->n_window; | |
145 | /* keep some reserve to not confuse empty and full situations */ | |
146 | s -= 2; | |
147 | if (s < 0) | |
148 | s = 0; | |
149 | return s; | |
150 | } | |
151 | ||
c54b679d | 152 | int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i) |
b481de9c | 153 | { |
fc4b6853 TW |
154 | return q->write_ptr > q->read_ptr ? |
155 | (i >= q->read_ptr && i < q->write_ptr) : | |
156 | !(i < q->read_ptr && i >= q->write_ptr); | |
b481de9c ZY |
157 | } |
158 | ||
c54b679d | 159 | |
bb8c093b | 160 | static inline u8 get_cmd_index(struct iwl3945_queue *q, u32 index, int is_huge) |
b481de9c | 161 | { |
6440adb5 | 162 | /* This is for scan command, the big buffer at end of command array */ |
b481de9c | 163 | if (is_huge) |
6440adb5 | 164 | return q->n_window; /* must be power of 2 */ |
b481de9c | 165 | |
6440adb5 | 166 | /* Otherwise, use normal size buffers */ |
b481de9c ZY |
167 | return index & (q->n_window - 1); |
168 | } | |
169 | ||
6440adb5 CB |
170 | /** |
171 | * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes | |
172 | */ | |
bb8c093b | 173 | static int iwl3945_queue_init(struct iwl3945_priv *priv, struct iwl3945_queue *q, |
b481de9c ZY |
174 | int count, int slots_num, u32 id) |
175 | { | |
176 | q->n_bd = count; | |
177 | q->n_window = slots_num; | |
178 | q->id = id; | |
179 | ||
c54b679d TW |
180 | /* count must be power-of-two size, otherwise iwl_queue_inc_wrap |
181 | * and iwl_queue_dec_wrap are broken. */ | |
b481de9c ZY |
182 | BUG_ON(!is_power_of_2(count)); |
183 | ||
184 | /* slots_num must be power-of-two size, otherwise | |
185 | * get_cmd_index is broken. */ | |
186 | BUG_ON(!is_power_of_2(slots_num)); | |
187 | ||
188 | q->low_mark = q->n_window / 4; | |
189 | if (q->low_mark < 4) | |
190 | q->low_mark = 4; | |
191 | ||
192 | q->high_mark = q->n_window / 8; | |
193 | if (q->high_mark < 2) | |
194 | q->high_mark = 2; | |
195 | ||
fc4b6853 | 196 | q->write_ptr = q->read_ptr = 0; |
b481de9c ZY |
197 | |
198 | return 0; | |
199 | } | |
200 | ||
6440adb5 CB |
201 | /** |
202 | * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue | |
203 | */ | |
bb8c093b CH |
204 | static int iwl3945_tx_queue_alloc(struct iwl3945_priv *priv, |
205 | struct iwl3945_tx_queue *txq, u32 id) | |
b481de9c ZY |
206 | { |
207 | struct pci_dev *dev = priv->pci_dev; | |
208 | ||
6440adb5 CB |
209 | /* Driver private data, only for Tx (not command) queues, |
210 | * not shared with device. */ | |
b481de9c ZY |
211 | if (id != IWL_CMD_QUEUE_NUM) { |
212 | txq->txb = kmalloc(sizeof(txq->txb[0]) * | |
213 | TFD_QUEUE_SIZE_MAX, GFP_KERNEL); | |
214 | if (!txq->txb) { | |
01ebd063 | 215 | IWL_ERROR("kmalloc for auxiliary BD " |
b481de9c ZY |
216 | "structures failed\n"); |
217 | goto error; | |
218 | } | |
219 | } else | |
220 | txq->txb = NULL; | |
221 | ||
6440adb5 CB |
222 | /* Circular buffer of transmit frame descriptors (TFDs), |
223 | * shared with device */ | |
b481de9c ZY |
224 | txq->bd = pci_alloc_consistent(dev, |
225 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX, | |
226 | &txq->q.dma_addr); | |
227 | ||
228 | if (!txq->bd) { | |
229 | IWL_ERROR("pci_alloc_consistent(%zd) failed\n", | |
230 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX); | |
231 | goto error; | |
232 | } | |
233 | txq->q.id = id; | |
234 | ||
235 | return 0; | |
236 | ||
237 | error: | |
3ac7f146 TW |
238 | kfree(txq->txb); |
239 | txq->txb = NULL; | |
b481de9c ZY |
240 | |
241 | return -ENOMEM; | |
242 | } | |
243 | ||
6440adb5 CB |
244 | /** |
245 | * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue | |
246 | */ | |
bb8c093b CH |
247 | int iwl3945_tx_queue_init(struct iwl3945_priv *priv, |
248 | struct iwl3945_tx_queue *txq, int slots_num, u32 txq_id) | |
b481de9c ZY |
249 | { |
250 | struct pci_dev *dev = priv->pci_dev; | |
251 | int len; | |
252 | int rc = 0; | |
253 | ||
6440adb5 CB |
254 | /* |
255 | * Alloc buffer array for commands (Tx or other types of commands). | |
256 | * For the command queue (#4), allocate command space + one big | |
257 | * command for scan, since scan command is very huge; the system will | |
258 | * not have two scans at the same time, so only one is needed. | |
259 | * For data Tx queues (all other queues), no super-size command | |
260 | * space is needed. | |
261 | */ | |
bb8c093b | 262 | len = sizeof(struct iwl3945_cmd) * slots_num; |
b481de9c ZY |
263 | if (txq_id == IWL_CMD_QUEUE_NUM) |
264 | len += IWL_MAX_SCAN_SIZE; | |
265 | txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd); | |
266 | if (!txq->cmd) | |
267 | return -ENOMEM; | |
268 | ||
6440adb5 | 269 | /* Alloc driver data array and TFD circular buffer */ |
bb8c093b | 270 | rc = iwl3945_tx_queue_alloc(priv, txq, txq_id); |
b481de9c ZY |
271 | if (rc) { |
272 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); | |
273 | ||
274 | return -ENOMEM; | |
275 | } | |
276 | txq->need_update = 0; | |
277 | ||
278 | /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise | |
c54b679d | 279 | * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ |
b481de9c | 280 | BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); |
6440adb5 CB |
281 | |
282 | /* Initialize queue high/low-water, head/tail indexes */ | |
bb8c093b | 283 | iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); |
b481de9c | 284 | |
6440adb5 | 285 | /* Tell device where to find queue, enable DMA channel. */ |
bb8c093b | 286 | iwl3945_hw_tx_queue_init(priv, txq); |
b481de9c ZY |
287 | |
288 | return 0; | |
289 | } | |
290 | ||
291 | /** | |
bb8c093b | 292 | * iwl3945_tx_queue_free - Deallocate DMA queue. |
b481de9c ZY |
293 | * @txq: Transmit queue to deallocate. |
294 | * | |
295 | * Empty queue by removing and destroying all BD's. | |
6440adb5 CB |
296 | * Free all buffers. |
297 | * 0-fill, but do not free "txq" descriptor structure. | |
b481de9c | 298 | */ |
bb8c093b | 299 | void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq) |
b481de9c | 300 | { |
bb8c093b | 301 | struct iwl3945_queue *q = &txq->q; |
b481de9c ZY |
302 | struct pci_dev *dev = priv->pci_dev; |
303 | int len; | |
304 | ||
305 | if (q->n_bd == 0) | |
306 | return; | |
307 | ||
308 | /* first, empty all BD's */ | |
fc4b6853 | 309 | for (; q->write_ptr != q->read_ptr; |
c54b679d | 310 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) |
bb8c093b | 311 | iwl3945_hw_txq_free_tfd(priv, txq); |
b481de9c | 312 | |
bb8c093b | 313 | len = sizeof(struct iwl3945_cmd) * q->n_window; |
b481de9c ZY |
314 | if (q->id == IWL_CMD_QUEUE_NUM) |
315 | len += IWL_MAX_SCAN_SIZE; | |
316 | ||
6440adb5 | 317 | /* De-alloc array of command/tx buffers */ |
b481de9c ZY |
318 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); |
319 | ||
6440adb5 | 320 | /* De-alloc circular buffer of TFDs */ |
b481de9c | 321 | if (txq->q.n_bd) |
bb8c093b | 322 | pci_free_consistent(dev, sizeof(struct iwl3945_tfd_frame) * |
b481de9c ZY |
323 | txq->q.n_bd, txq->bd, txq->q.dma_addr); |
324 | ||
6440adb5 | 325 | /* De-alloc array of per-TFD driver data */ |
3ac7f146 TW |
326 | kfree(txq->txb); |
327 | txq->txb = NULL; | |
b481de9c | 328 | |
6440adb5 | 329 | /* 0-fill queue descriptor structure */ |
b481de9c ZY |
330 | memset(txq, 0, sizeof(*txq)); |
331 | } | |
332 | ||
bb8c093b | 333 | const u8 iwl3945_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
b481de9c ZY |
334 | |
335 | /*************** STATION TABLE MANAGEMENT **** | |
9fbab516 | 336 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
337 | * the functionality provided here |
338 | */ | |
339 | ||
340 | /**************************************************************/ | |
01ebd063 | 341 | #if 0 /* temporary disable till we add real remove station */ |
6440adb5 CB |
342 | /** |
343 | * iwl3945_remove_station - Remove driver's knowledge of station. | |
344 | * | |
345 | * NOTE: This does not remove station from device's station table. | |
346 | */ | |
bb8c093b | 347 | static u8 iwl3945_remove_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap) |
b481de9c ZY |
348 | { |
349 | int index = IWL_INVALID_STATION; | |
350 | int i; | |
351 | unsigned long flags; | |
352 | ||
353 | spin_lock_irqsave(&priv->sta_lock, flags); | |
354 | ||
355 | if (is_ap) | |
356 | index = IWL_AP_ID; | |
357 | else if (is_broadcast_ether_addr(addr)) | |
358 | index = priv->hw_setting.bcast_sta_id; | |
359 | else | |
360 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) | |
361 | if (priv->stations[i].used && | |
362 | !compare_ether_addr(priv->stations[i].sta.sta.addr, | |
363 | addr)) { | |
364 | index = i; | |
365 | break; | |
366 | } | |
367 | ||
368 | if (unlikely(index == IWL_INVALID_STATION)) | |
369 | goto out; | |
370 | ||
371 | if (priv->stations[index].used) { | |
372 | priv->stations[index].used = 0; | |
373 | priv->num_stations--; | |
374 | } | |
375 | ||
376 | BUG_ON(priv->num_stations < 0); | |
377 | ||
378 | out: | |
379 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
380 | return 0; | |
381 | } | |
556f8db7 | 382 | #endif |
6440adb5 CB |
383 | |
384 | /** | |
385 | * iwl3945_clear_stations_table - Clear the driver's station table | |
386 | * | |
387 | * NOTE: This does not clear or otherwise alter the device's station table. | |
388 | */ | |
bb8c093b | 389 | static void iwl3945_clear_stations_table(struct iwl3945_priv *priv) |
b481de9c ZY |
390 | { |
391 | unsigned long flags; | |
392 | ||
393 | spin_lock_irqsave(&priv->sta_lock, flags); | |
394 | ||
395 | priv->num_stations = 0; | |
396 | memset(priv->stations, 0, sizeof(priv->stations)); | |
397 | ||
398 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
399 | } | |
400 | ||
6440adb5 CB |
401 | /** |
402 | * iwl3945_add_station - Add station to station tables in driver and device | |
403 | */ | |
bb8c093b | 404 | u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap, u8 flags) |
b481de9c ZY |
405 | { |
406 | int i; | |
407 | int index = IWL_INVALID_STATION; | |
bb8c093b | 408 | struct iwl3945_station_entry *station; |
b481de9c | 409 | unsigned long flags_spin; |
c14c521e | 410 | u8 rate; |
b481de9c ZY |
411 | |
412 | spin_lock_irqsave(&priv->sta_lock, flags_spin); | |
413 | if (is_ap) | |
414 | index = IWL_AP_ID; | |
415 | else if (is_broadcast_ether_addr(addr)) | |
416 | index = priv->hw_setting.bcast_sta_id; | |
417 | else | |
418 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) { | |
419 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, | |
420 | addr)) { | |
421 | index = i; | |
422 | break; | |
423 | } | |
424 | ||
425 | if (!priv->stations[i].used && | |
426 | index == IWL_INVALID_STATION) | |
427 | index = i; | |
428 | } | |
429 | ||
01ebd063 | 430 | /* These two conditions has the same outcome but keep them separate |
b481de9c ZY |
431 | since they have different meaning */ |
432 | if (unlikely(index == IWL_INVALID_STATION)) { | |
433 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
434 | return index; | |
435 | } | |
436 | ||
437 | if (priv->stations[index].used && | |
438 | !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) { | |
439 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
440 | return index; | |
441 | } | |
442 | ||
e174961c | 443 | IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index, addr); |
b481de9c ZY |
444 | station = &priv->stations[index]; |
445 | station->used = 1; | |
446 | priv->num_stations++; | |
447 | ||
6440adb5 | 448 | /* Set up the REPLY_ADD_STA command to send to device */ |
bb8c093b | 449 | memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd)); |
b481de9c ZY |
450 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
451 | station->sta.mode = 0; | |
452 | station->sta.sta.sta_id = index; | |
453 | station->sta.station_flags = 0; | |
454 | ||
8318d78a | 455 | if (priv->band == IEEE80211_BAND_5GHZ) |
69946333 TW |
456 | rate = IWL_RATE_6M_PLCP; |
457 | else | |
458 | rate = IWL_RATE_1M_PLCP; | |
c14c521e ZY |
459 | |
460 | /* Turn on both antennas for the station... */ | |
461 | station->sta.rate_n_flags = | |
bb8c093b | 462 | iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK); |
c14c521e ZY |
463 | station->current_rate.rate_n_flags = |
464 | le16_to_cpu(station->sta.rate_n_flags); | |
465 | ||
b481de9c | 466 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
6440adb5 CB |
467 | |
468 | /* Add station to device's station table */ | |
bb8c093b | 469 | iwl3945_send_add_station(priv, &station->sta, flags); |
b481de9c ZY |
470 | return index; |
471 | ||
472 | } | |
473 | ||
474 | /*************** DRIVER STATUS FUNCTIONS *****/ | |
475 | ||
bb8c093b | 476 | static inline int iwl3945_is_ready(struct iwl3945_priv *priv) |
b481de9c ZY |
477 | { |
478 | /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are | |
479 | * set but EXIT_PENDING is not */ | |
480 | return test_bit(STATUS_READY, &priv->status) && | |
481 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) && | |
482 | !test_bit(STATUS_EXIT_PENDING, &priv->status); | |
483 | } | |
484 | ||
bb8c093b | 485 | static inline int iwl3945_is_alive(struct iwl3945_priv *priv) |
b481de9c ZY |
486 | { |
487 | return test_bit(STATUS_ALIVE, &priv->status); | |
488 | } | |
489 | ||
bb8c093b | 490 | static inline int iwl3945_is_init(struct iwl3945_priv *priv) |
b481de9c ZY |
491 | { |
492 | return test_bit(STATUS_INIT, &priv->status); | |
493 | } | |
494 | ||
80fcc9e2 AG |
495 | static inline int iwl3945_is_rfkill_sw(struct iwl3945_priv *priv) |
496 | { | |
497 | return test_bit(STATUS_RF_KILL_SW, &priv->status); | |
498 | } | |
499 | ||
500 | static inline int iwl3945_is_rfkill_hw(struct iwl3945_priv *priv) | |
501 | { | |
502 | return test_bit(STATUS_RF_KILL_HW, &priv->status); | |
503 | } | |
504 | ||
bb8c093b | 505 | static inline int iwl3945_is_rfkill(struct iwl3945_priv *priv) |
b481de9c | 506 | { |
80fcc9e2 AG |
507 | return iwl3945_is_rfkill_hw(priv) || |
508 | iwl3945_is_rfkill_sw(priv); | |
b481de9c ZY |
509 | } |
510 | ||
bb8c093b | 511 | static inline int iwl3945_is_ready_rf(struct iwl3945_priv *priv) |
b481de9c ZY |
512 | { |
513 | ||
bb8c093b | 514 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
515 | return 0; |
516 | ||
bb8c093b | 517 | return iwl3945_is_ready(priv); |
b481de9c ZY |
518 | } |
519 | ||
520 | /*************** HOST COMMAND QUEUE FUNCTIONS *****/ | |
521 | ||
c3056065 | 522 | #define IWL_CMD(x) case x: return #x |
b481de9c ZY |
523 | |
524 | static const char *get_cmd_string(u8 cmd) | |
525 | { | |
526 | switch (cmd) { | |
527 | IWL_CMD(REPLY_ALIVE); | |
528 | IWL_CMD(REPLY_ERROR); | |
529 | IWL_CMD(REPLY_RXON); | |
530 | IWL_CMD(REPLY_RXON_ASSOC); | |
531 | IWL_CMD(REPLY_QOS_PARAM); | |
532 | IWL_CMD(REPLY_RXON_TIMING); | |
533 | IWL_CMD(REPLY_ADD_STA); | |
534 | IWL_CMD(REPLY_REMOVE_STA); | |
535 | IWL_CMD(REPLY_REMOVE_ALL_STA); | |
536 | IWL_CMD(REPLY_3945_RX); | |
537 | IWL_CMD(REPLY_TX); | |
538 | IWL_CMD(REPLY_RATE_SCALE); | |
539 | IWL_CMD(REPLY_LEDS_CMD); | |
540 | IWL_CMD(REPLY_TX_LINK_QUALITY_CMD); | |
541 | IWL_CMD(RADAR_NOTIFICATION); | |
542 | IWL_CMD(REPLY_QUIET_CMD); | |
543 | IWL_CMD(REPLY_CHANNEL_SWITCH); | |
544 | IWL_CMD(CHANNEL_SWITCH_NOTIFICATION); | |
545 | IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD); | |
546 | IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION); | |
547 | IWL_CMD(POWER_TABLE_CMD); | |
548 | IWL_CMD(PM_SLEEP_NOTIFICATION); | |
549 | IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC); | |
550 | IWL_CMD(REPLY_SCAN_CMD); | |
551 | IWL_CMD(REPLY_SCAN_ABORT_CMD); | |
552 | IWL_CMD(SCAN_START_NOTIFICATION); | |
553 | IWL_CMD(SCAN_RESULTS_NOTIFICATION); | |
554 | IWL_CMD(SCAN_COMPLETE_NOTIFICATION); | |
555 | IWL_CMD(BEACON_NOTIFICATION); | |
556 | IWL_CMD(REPLY_TX_BEACON); | |
557 | IWL_CMD(WHO_IS_AWAKE_NOTIFICATION); | |
558 | IWL_CMD(QUIET_NOTIFICATION); | |
559 | IWL_CMD(REPLY_TX_PWR_TABLE_CMD); | |
560 | IWL_CMD(MEASURE_ABORT_NOTIFICATION); | |
561 | IWL_CMD(REPLY_BT_CONFIG); | |
562 | IWL_CMD(REPLY_STATISTICS_CMD); | |
563 | IWL_CMD(STATISTICS_NOTIFICATION); | |
564 | IWL_CMD(REPLY_CARD_STATE_CMD); | |
565 | IWL_CMD(CARD_STATE_NOTIFICATION); | |
566 | IWL_CMD(MISSED_BEACONS_NOTIFICATION); | |
567 | default: | |
568 | return "UNKNOWN"; | |
569 | ||
570 | } | |
571 | } | |
572 | ||
573 | #define HOST_COMPLETE_TIMEOUT (HZ / 2) | |
574 | ||
575 | /** | |
bb8c093b | 576 | * iwl3945_enqueue_hcmd - enqueue a uCode command |
b481de9c ZY |
577 | * @priv: device private data point |
578 | * @cmd: a point to the ucode command structure | |
579 | * | |
580 | * The function returns < 0 values to indicate the operation is | |
581 | * failed. On success, it turns the index (> 0) of command in the | |
582 | * command queue. | |
583 | */ | |
bb8c093b | 584 | static int iwl3945_enqueue_hcmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 585 | { |
bb8c093b CH |
586 | struct iwl3945_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; |
587 | struct iwl3945_queue *q = &txq->q; | |
588 | struct iwl3945_tfd_frame *tfd; | |
b481de9c | 589 | u32 *control_flags; |
bb8c093b | 590 | struct iwl3945_cmd *out_cmd; |
b481de9c ZY |
591 | u32 idx; |
592 | u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr)); | |
593 | dma_addr_t phys_addr; | |
594 | int pad; | |
595 | u16 count; | |
596 | int ret; | |
597 | unsigned long flags; | |
598 | ||
599 | /* If any of the command structures end up being larger than | |
600 | * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then | |
601 | * we will need to increase the size of the TFD entries */ | |
602 | BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) && | |
603 | !(cmd->meta.flags & CMD_SIZE_HUGE)); | |
604 | ||
c342a1b9 GG |
605 | |
606 | if (iwl3945_is_rfkill(priv)) { | |
607 | IWL_DEBUG_INFO("Not sending command - RF KILL"); | |
608 | return -EIO; | |
609 | } | |
610 | ||
bb8c093b | 611 | if (iwl3945_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) { |
b481de9c ZY |
612 | IWL_ERROR("No space for Tx\n"); |
613 | return -ENOSPC; | |
614 | } | |
615 | ||
616 | spin_lock_irqsave(&priv->hcmd_lock, flags); | |
617 | ||
fc4b6853 | 618 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
619 | memset(tfd, 0, sizeof(*tfd)); |
620 | ||
621 | control_flags = (u32 *) tfd; | |
622 | ||
fc4b6853 | 623 | idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE); |
b481de9c ZY |
624 | out_cmd = &txq->cmd[idx]; |
625 | ||
626 | out_cmd->hdr.cmd = cmd->id; | |
627 | memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta)); | |
628 | memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len); | |
629 | ||
630 | /* At this point, the out_cmd now has all of the incoming cmd | |
631 | * information */ | |
632 | ||
633 | out_cmd->hdr.flags = 0; | |
634 | out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) | | |
fc4b6853 | 635 | INDEX_TO_SEQ(q->write_ptr)); |
b481de9c ZY |
636 | if (out_cmd->meta.flags & CMD_SIZE_HUGE) |
637 | out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME); | |
638 | ||
639 | phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx + | |
bb8c093b CH |
640 | offsetof(struct iwl3945_cmd, hdr); |
641 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size); | |
b481de9c ZY |
642 | |
643 | pad = U32_PAD(cmd->len); | |
644 | count = TFD_CTL_COUNT_GET(*control_flags); | |
645 | *control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad); | |
646 | ||
647 | IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, " | |
648 | "%d bytes at %d[%d]:%d\n", | |
649 | get_cmd_string(out_cmd->hdr.cmd), | |
650 | out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence), | |
fc4b6853 | 651 | fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM); |
b481de9c ZY |
652 | |
653 | txq->need_update = 1; | |
6440adb5 CB |
654 | |
655 | /* Increment and update queue's write index */ | |
c54b679d | 656 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
bb8c093b | 657 | ret = iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
658 | |
659 | spin_unlock_irqrestore(&priv->hcmd_lock, flags); | |
660 | return ret ? ret : idx; | |
661 | } | |
662 | ||
bb8c093b | 663 | static int iwl3945_send_cmd_async(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
664 | { |
665 | int ret; | |
666 | ||
667 | BUG_ON(!(cmd->meta.flags & CMD_ASYNC)); | |
668 | ||
669 | /* An asynchronous command can not expect an SKB to be set. */ | |
670 | BUG_ON(cmd->meta.flags & CMD_WANT_SKB); | |
671 | ||
672 | /* An asynchronous command MUST have a callback. */ | |
673 | BUG_ON(!cmd->meta.u.callback); | |
674 | ||
675 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
676 | return -EBUSY; | |
677 | ||
bb8c093b | 678 | ret = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c | 679 | if (ret < 0) { |
bb8c093b | 680 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
681 | get_cmd_string(cmd->id), ret); |
682 | return ret; | |
683 | } | |
684 | return 0; | |
685 | } | |
686 | ||
bb8c093b | 687 | static int iwl3945_send_cmd_sync(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
688 | { |
689 | int cmd_idx; | |
690 | int ret; | |
b481de9c ZY |
691 | |
692 | BUG_ON(cmd->meta.flags & CMD_ASYNC); | |
693 | ||
694 | /* A synchronous command can not have a callback set. */ | |
695 | BUG_ON(cmd->meta.u.callback != NULL); | |
696 | ||
e5472978 | 697 | if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status)) { |
b481de9c ZY |
698 | IWL_ERROR("Error sending %s: Already sending a host command\n", |
699 | get_cmd_string(cmd->id)); | |
e5472978 TW |
700 | ret = -EBUSY; |
701 | goto out; | |
b481de9c ZY |
702 | } |
703 | ||
704 | set_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
705 | ||
706 | if (cmd->meta.flags & CMD_WANT_SKB) | |
707 | cmd->meta.source = &cmd->meta; | |
708 | ||
bb8c093b | 709 | cmd_idx = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c ZY |
710 | if (cmd_idx < 0) { |
711 | ret = cmd_idx; | |
bb8c093b | 712 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
713 | get_cmd_string(cmd->id), ret); |
714 | goto out; | |
715 | } | |
716 | ||
717 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
718 | !test_bit(STATUS_HCMD_ACTIVE, &priv->status), | |
719 | HOST_COMPLETE_TIMEOUT); | |
720 | if (!ret) { | |
721 | if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) { | |
722 | IWL_ERROR("Error sending %s: time out after %dms.\n", | |
723 | get_cmd_string(cmd->id), | |
724 | jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); | |
725 | ||
726 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
727 | ret = -ETIMEDOUT; | |
728 | goto cancel; | |
729 | } | |
730 | } | |
731 | ||
732 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
733 | IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n", | |
734 | get_cmd_string(cmd->id)); | |
735 | ret = -ECANCELED; | |
736 | goto fail; | |
737 | } | |
738 | if (test_bit(STATUS_FW_ERROR, &priv->status)) { | |
739 | IWL_DEBUG_INFO("Command %s failed: FW Error\n", | |
740 | get_cmd_string(cmd->id)); | |
741 | ret = -EIO; | |
742 | goto fail; | |
743 | } | |
744 | if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) { | |
745 | IWL_ERROR("Error: Response NULL in '%s'\n", | |
746 | get_cmd_string(cmd->id)); | |
747 | ret = -EIO; | |
73e1a65d | 748 | goto cancel; |
b481de9c ZY |
749 | } |
750 | ||
751 | ret = 0; | |
752 | goto out; | |
753 | ||
754 | cancel: | |
755 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
bb8c093b | 756 | struct iwl3945_cmd *qcmd; |
b481de9c ZY |
757 | |
758 | /* Cancel the CMD_WANT_SKB flag for the cmd in the | |
759 | * TX cmd queue. Otherwise in case the cmd comes | |
760 | * in later, it will possibly set an invalid | |
761 | * address (cmd->meta.source). */ | |
762 | qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx]; | |
763 | qcmd->meta.flags &= ~CMD_WANT_SKB; | |
764 | } | |
765 | fail: | |
766 | if (cmd->meta.u.skb) { | |
767 | dev_kfree_skb_any(cmd->meta.u.skb); | |
768 | cmd->meta.u.skb = NULL; | |
769 | } | |
770 | out: | |
e5472978 | 771 | clear_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status); |
b481de9c ZY |
772 | return ret; |
773 | } | |
774 | ||
bb8c093b | 775 | int iwl3945_send_cmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 776 | { |
b481de9c | 777 | if (cmd->meta.flags & CMD_ASYNC) |
bb8c093b | 778 | return iwl3945_send_cmd_async(priv, cmd); |
b481de9c | 779 | |
bb8c093b | 780 | return iwl3945_send_cmd_sync(priv, cmd); |
b481de9c ZY |
781 | } |
782 | ||
bb8c093b | 783 | int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len, const void *data) |
b481de9c | 784 | { |
bb8c093b | 785 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
786 | .id = id, |
787 | .len = len, | |
788 | .data = data, | |
789 | }; | |
790 | ||
bb8c093b | 791 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
792 | } |
793 | ||
bb8c093b | 794 | static int __must_check iwl3945_send_cmd_u32(struct iwl3945_priv *priv, u8 id, u32 val) |
b481de9c | 795 | { |
bb8c093b | 796 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
797 | .id = id, |
798 | .len = sizeof(val), | |
799 | .data = &val, | |
800 | }; | |
801 | ||
bb8c093b | 802 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
803 | } |
804 | ||
bb8c093b | 805 | int iwl3945_send_statistics_request(struct iwl3945_priv *priv) |
b481de9c | 806 | { |
bb8c093b | 807 | return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0); |
b481de9c ZY |
808 | } |
809 | ||
b481de9c | 810 | /** |
bb8c093b | 811 | * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON |
8318d78a JB |
812 | * @band: 2.4 or 5 GHz band |
813 | * @channel: Any channel valid for the requested band | |
b481de9c | 814 | |
8318d78a | 815 | * In addition to setting the staging RXON, priv->band is also set. |
b481de9c ZY |
816 | * |
817 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
8318d78a | 818 | * in the staging RXON flag structure based on the band |
b481de9c | 819 | */ |
8318d78a JB |
820 | static int iwl3945_set_rxon_channel(struct iwl3945_priv *priv, |
821 | enum ieee80211_band band, | |
822 | u16 channel) | |
b481de9c | 823 | { |
8318d78a | 824 | if (!iwl3945_get_channel_info(priv, band, channel)) { |
b481de9c | 825 | IWL_DEBUG_INFO("Could not set channel to %d [%d]\n", |
8318d78a | 826 | channel, band); |
b481de9c ZY |
827 | return -EINVAL; |
828 | } | |
829 | ||
830 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && | |
8318d78a | 831 | (priv->band == band)) |
b481de9c ZY |
832 | return 0; |
833 | ||
834 | priv->staging_rxon.channel = cpu_to_le16(channel); | |
8318d78a | 835 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
836 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; |
837 | else | |
838 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
839 | ||
8318d78a | 840 | priv->band = band; |
b481de9c | 841 | |
8318d78a | 842 | IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band); |
b481de9c ZY |
843 | |
844 | return 0; | |
845 | } | |
846 | ||
847 | /** | |
bb8c093b | 848 | * iwl3945_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
849 | * |
850 | * NOTE: This is really only useful during development and can eventually | |
851 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
852 | * making changes | |
853 | */ | |
bb8c093b | 854 | static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c ZY |
855 | { |
856 | int error = 0; | |
857 | int counter = 1; | |
858 | ||
859 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
860 | error |= le32_to_cpu(rxon->flags & | |
861 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
862 | RXON_FLG_RADAR_DETECT_MSK)); | |
863 | if (error) | |
864 | IWL_WARNING("check 24G fields %d | %d\n", | |
865 | counter++, error); | |
866 | } else { | |
867 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
868 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
869 | if (error) | |
870 | IWL_WARNING("check 52 fields %d | %d\n", | |
871 | counter++, error); | |
872 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
873 | if (error) | |
874 | IWL_WARNING("check 52 CCK %d | %d\n", | |
875 | counter++, error); | |
876 | } | |
877 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
878 | if (error) | |
879 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
880 | ||
881 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
882 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
883 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
884 | if (error) | |
885 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
886 | ||
887 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
888 | if (error) | |
889 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
890 | ||
891 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
892 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
893 | if (error) | |
894 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
895 | counter++, error); | |
896 | ||
897 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
898 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
899 | if (error) | |
900 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
901 | counter++, error); | |
902 | ||
903 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
904 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
905 | if (error) | |
906 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
907 | counter++, error); | |
908 | ||
909 | if ((rxon->flags & RXON_FLG_DIS_DIV_MSK)) | |
910 | error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK | | |
911 | RXON_FLG_ANT_A_MSK)) == 0); | |
912 | if (error) | |
913 | IWL_WARNING("check antenna %d %d\n", counter++, error); | |
914 | ||
915 | if (error) | |
916 | IWL_WARNING("Tuning to channel %d\n", | |
917 | le16_to_cpu(rxon->channel)); | |
918 | ||
919 | if (error) { | |
bb8c093b | 920 | IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
921 | return -1; |
922 | } | |
923 | return 0; | |
924 | } | |
925 | ||
926 | /** | |
9fbab516 | 927 | * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 928 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 929 | * |
9fbab516 BC |
930 | * If the RXON structure is changing enough to require a new tune, |
931 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
932 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 933 | */ |
bb8c093b | 934 | static int iwl3945_full_rxon_required(struct iwl3945_priv *priv) |
b481de9c ZY |
935 | { |
936 | ||
937 | /* These items are only settable from the full RXON command */ | |
5d1e2325 | 938 | if (!(iwl3945_is_associated(priv)) || |
b481de9c ZY |
939 | compare_ether_addr(priv->staging_rxon.bssid_addr, |
940 | priv->active_rxon.bssid_addr) || | |
941 | compare_ether_addr(priv->staging_rxon.node_addr, | |
942 | priv->active_rxon.node_addr) || | |
943 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
944 | priv->active_rxon.wlap_bssid_addr) || | |
945 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
946 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
947 | (priv->staging_rxon.air_propagation != | |
948 | priv->active_rxon.air_propagation) || | |
949 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
950 | return 1; | |
951 | ||
952 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
953 | * be updated with the RXON_ASSOC command -- however only some | |
954 | * flag transitions are allowed using RXON_ASSOC */ | |
955 | ||
956 | /* Check if we are not switching bands */ | |
957 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
958 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
959 | return 1; | |
960 | ||
961 | /* Check if we are switching association toggle */ | |
962 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
963 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
964 | return 1; | |
965 | ||
966 | return 0; | |
967 | } | |
968 | ||
bb8c093b | 969 | static int iwl3945_send_rxon_assoc(struct iwl3945_priv *priv) |
b481de9c ZY |
970 | { |
971 | int rc = 0; | |
bb8c093b CH |
972 | struct iwl3945_rx_packet *res = NULL; |
973 | struct iwl3945_rxon_assoc_cmd rxon_assoc; | |
974 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
975 | .id = REPLY_RXON_ASSOC, |
976 | .len = sizeof(rxon_assoc), | |
977 | .meta.flags = CMD_WANT_SKB, | |
978 | .data = &rxon_assoc, | |
979 | }; | |
bb8c093b CH |
980 | const struct iwl3945_rxon_cmd *rxon1 = &priv->staging_rxon; |
981 | const struct iwl3945_rxon_cmd *rxon2 = &priv->active_rxon; | |
b481de9c ZY |
982 | |
983 | if ((rxon1->flags == rxon2->flags) && | |
984 | (rxon1->filter_flags == rxon2->filter_flags) && | |
985 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
986 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
987 | IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n"); | |
988 | return 0; | |
989 | } | |
990 | ||
991 | rxon_assoc.flags = priv->staging_rxon.flags; | |
992 | rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; | |
993 | rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; | |
994 | rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; | |
995 | rxon_assoc.reserved = 0; | |
996 | ||
bb8c093b | 997 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
998 | if (rc) |
999 | return rc; | |
1000 | ||
bb8c093b | 1001 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1002 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1003 | IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n"); | |
1004 | rc = -EIO; | |
1005 | } | |
1006 | ||
1007 | priv->alloc_rxb_skb--; | |
1008 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1009 | ||
1010 | return rc; | |
1011 | } | |
1012 | ||
1013 | /** | |
bb8c093b | 1014 | * iwl3945_commit_rxon - commit staging_rxon to hardware |
b481de9c | 1015 | * |
01ebd063 | 1016 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
1017 | * the active_rxon structure is updated with the new data. This |
1018 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
1019 | * a HW tune is required based on the RXON structure changes. | |
1020 | */ | |
bb8c093b | 1021 | static int iwl3945_commit_rxon(struct iwl3945_priv *priv) |
b481de9c ZY |
1022 | { |
1023 | /* cast away the const for active_rxon in this function */ | |
bb8c093b | 1024 | struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
b481de9c ZY |
1025 | int rc = 0; |
1026 | ||
bb8c093b | 1027 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
1028 | return -1; |
1029 | ||
1030 | /* always get timestamp with Rx frame */ | |
1031 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
1032 | ||
1033 | /* select antenna */ | |
1034 | priv->staging_rxon.flags &= | |
1035 | ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); | |
1036 | priv->staging_rxon.flags |= iwl3945_get_antenna_flags(priv); | |
1037 | ||
bb8c093b | 1038 | rc = iwl3945_check_rxon_cmd(&priv->staging_rxon); |
b481de9c ZY |
1039 | if (rc) { |
1040 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); | |
1041 | return -EINVAL; | |
1042 | } | |
1043 | ||
1044 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 1045 | * iwl3945_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 1046 | * and other flags for the current radio configuration. */ |
bb8c093b CH |
1047 | if (!iwl3945_full_rxon_required(priv)) { |
1048 | rc = iwl3945_send_rxon_assoc(priv); | |
b481de9c ZY |
1049 | if (rc) { |
1050 | IWL_ERROR("Error setting RXON_ASSOC " | |
1051 | "configuration (%d).\n", rc); | |
1052 | return rc; | |
1053 | } | |
1054 | ||
1055 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1056 | ||
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | /* If we are currently associated and the new config requires | |
1061 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
1062 | * we must clear the associated from the active configuration | |
1063 | * before we apply the new config */ | |
bb8c093b | 1064 | if (iwl3945_is_associated(priv) && |
b481de9c ZY |
1065 | (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) { |
1066 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); | |
1067 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1068 | ||
bb8c093b CH |
1069 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1070 | sizeof(struct iwl3945_rxon_cmd), | |
b481de9c ZY |
1071 | &priv->active_rxon); |
1072 | ||
1073 | /* If the mask clearing failed then we set | |
1074 | * active_rxon back to what it was previously */ | |
1075 | if (rc) { | |
1076 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
1077 | IWL_ERROR("Error clearing ASSOC_MSK on current " | |
1078 | "configuration (%d).\n", rc); | |
1079 | return rc; | |
1080 | } | |
b481de9c ZY |
1081 | } |
1082 | ||
1083 | IWL_DEBUG_INFO("Sending RXON\n" | |
1084 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
1085 | "* channel = %d\n" | |
e174961c | 1086 | "* bssid = %pM\n", |
b481de9c ZY |
1087 | ((priv->staging_rxon.filter_flags & |
1088 | RXON_FILTER_ASSOC_MSK) ? "" : "out"), | |
1089 | le16_to_cpu(priv->staging_rxon.channel), | |
e174961c | 1090 | priv->staging_rxon.bssid_addr); |
b481de9c ZY |
1091 | |
1092 | /* Apply the new configuration */ | |
bb8c093b CH |
1093 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1094 | sizeof(struct iwl3945_rxon_cmd), &priv->staging_rxon); | |
b481de9c ZY |
1095 | if (rc) { |
1096 | IWL_ERROR("Error setting new configuration (%d).\n", rc); | |
1097 | return rc; | |
1098 | } | |
1099 | ||
1100 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1101 | ||
bb8c093b | 1102 | iwl3945_clear_stations_table(priv); |
556f8db7 | 1103 | |
b481de9c ZY |
1104 | /* If we issue a new RXON command which required a tune then we must |
1105 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
bb8c093b | 1106 | rc = iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
1107 | if (rc) { |
1108 | IWL_ERROR("Error setting Tx power (%d).\n", rc); | |
1109 | return rc; | |
1110 | } | |
1111 | ||
1112 | /* Add the broadcast address so we can send broadcast frames */ | |
bb8c093b | 1113 | if (iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0) == |
b481de9c ZY |
1114 | IWL_INVALID_STATION) { |
1115 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); | |
1116 | return -EIO; | |
1117 | } | |
1118 | ||
1119 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
1120 | * add the IWL_AP_ID to the station rate table */ | |
bb8c093b | 1121 | if (iwl3945_is_associated(priv) && |
05c914fe | 1122 | (priv->iw_mode == NL80211_IFTYPE_STATION)) |
bb8c093b | 1123 | if (iwl3945_add_station(priv, priv->active_rxon.bssid_addr, 1, 0) |
b481de9c ZY |
1124 | == IWL_INVALID_STATION) { |
1125 | IWL_ERROR("Error adding AP address for transmit.\n"); | |
1126 | return -EIO; | |
1127 | } | |
1128 | ||
8318d78a | 1129 | /* Init the hardware's rate fallback order based on the band */ |
b481de9c ZY |
1130 | rc = iwl3945_init_hw_rate_table(priv); |
1131 | if (rc) { | |
1132 | IWL_ERROR("Error setting HW rate table: %02X\n", rc); | |
1133 | return -EIO; | |
1134 | } | |
1135 | ||
1136 | return 0; | |
1137 | } | |
1138 | ||
bb8c093b | 1139 | static int iwl3945_send_bt_config(struct iwl3945_priv *priv) |
b481de9c | 1140 | { |
bb8c093b | 1141 | struct iwl3945_bt_cmd bt_cmd = { |
b481de9c ZY |
1142 | .flags = 3, |
1143 | .lead_time = 0xAA, | |
1144 | .max_kill = 1, | |
1145 | .kill_ack_mask = 0, | |
1146 | .kill_cts_mask = 0, | |
1147 | }; | |
1148 | ||
bb8c093b CH |
1149 | return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
1150 | sizeof(struct iwl3945_bt_cmd), &bt_cmd); | |
b481de9c ZY |
1151 | } |
1152 | ||
bb8c093b | 1153 | static int iwl3945_send_scan_abort(struct iwl3945_priv *priv) |
b481de9c ZY |
1154 | { |
1155 | int rc = 0; | |
bb8c093b CH |
1156 | struct iwl3945_rx_packet *res; |
1157 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
1158 | .id = REPLY_SCAN_ABORT_CMD, |
1159 | .meta.flags = CMD_WANT_SKB, | |
1160 | }; | |
1161 | ||
1162 | /* If there isn't a scan actively going on in the hardware | |
1163 | * then we are in between scan bands and not actually | |
1164 | * actively scanning, so don't send the abort command */ | |
1165 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1166 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1167 | return 0; | |
1168 | } | |
1169 | ||
bb8c093b | 1170 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1171 | if (rc) { |
1172 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1173 | return rc; | |
1174 | } | |
1175 | ||
bb8c093b | 1176 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1177 | if (res->u.status != CAN_ABORT_STATUS) { |
1178 | /* The scan abort will return 1 for success or | |
1179 | * 2 for "failure". A failure condition can be | |
1180 | * due to simply not being in an active scan which | |
1181 | * can occur if we send the scan abort before we | |
1182 | * the microcode has notified us that a scan is | |
1183 | * completed. */ | |
1184 | IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); | |
1185 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1186 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
1187 | } | |
1188 | ||
1189 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1190 | ||
1191 | return rc; | |
1192 | } | |
1193 | ||
bb8c093b CH |
1194 | static int iwl3945_card_state_sync_callback(struct iwl3945_priv *priv, |
1195 | struct iwl3945_cmd *cmd, | |
b481de9c ZY |
1196 | struct sk_buff *skb) |
1197 | { | |
1198 | return 1; | |
1199 | } | |
1200 | ||
1201 | /* | |
1202 | * CARD_STATE_CMD | |
1203 | * | |
9fbab516 | 1204 | * Use: Sets the device's internal card state to enable, disable, or halt |
b481de9c ZY |
1205 | * |
1206 | * When in the 'enable' state the card operates as normal. | |
1207 | * When in the 'disable' state, the card enters into a low power mode. | |
1208 | * When in the 'halt' state, the card is shut down and must be fully | |
1209 | * restarted to come back on. | |
1210 | */ | |
bb8c093b | 1211 | static int iwl3945_send_card_state(struct iwl3945_priv *priv, u32 flags, u8 meta_flag) |
b481de9c | 1212 | { |
bb8c093b | 1213 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
1214 | .id = REPLY_CARD_STATE_CMD, |
1215 | .len = sizeof(u32), | |
1216 | .data = &flags, | |
1217 | .meta.flags = meta_flag, | |
1218 | }; | |
1219 | ||
1220 | if (meta_flag & CMD_ASYNC) | |
bb8c093b | 1221 | cmd.meta.u.callback = iwl3945_card_state_sync_callback; |
b481de9c | 1222 | |
bb8c093b | 1223 | return iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1224 | } |
1225 | ||
bb8c093b CH |
1226 | static int iwl3945_add_sta_sync_callback(struct iwl3945_priv *priv, |
1227 | struct iwl3945_cmd *cmd, struct sk_buff *skb) | |
b481de9c | 1228 | { |
bb8c093b | 1229 | struct iwl3945_rx_packet *res = NULL; |
b481de9c ZY |
1230 | |
1231 | if (!skb) { | |
1232 | IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n"); | |
1233 | return 1; | |
1234 | } | |
1235 | ||
bb8c093b | 1236 | res = (struct iwl3945_rx_packet *)skb->data; |
b481de9c ZY |
1237 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1238 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1239 | res->hdr.flags); | |
1240 | return 1; | |
1241 | } | |
1242 | ||
1243 | switch (res->u.add_sta.status) { | |
1244 | case ADD_STA_SUCCESS_MSK: | |
1245 | break; | |
1246 | default: | |
1247 | break; | |
1248 | } | |
1249 | ||
1250 | /* We didn't cache the SKB; let the caller free it */ | |
1251 | return 1; | |
1252 | } | |
1253 | ||
bb8c093b CH |
1254 | int iwl3945_send_add_station(struct iwl3945_priv *priv, |
1255 | struct iwl3945_addsta_cmd *sta, u8 flags) | |
b481de9c | 1256 | { |
bb8c093b | 1257 | struct iwl3945_rx_packet *res = NULL; |
b481de9c | 1258 | int rc = 0; |
bb8c093b | 1259 | struct iwl3945_host_cmd cmd = { |
b481de9c | 1260 | .id = REPLY_ADD_STA, |
bb8c093b | 1261 | .len = sizeof(struct iwl3945_addsta_cmd), |
b481de9c ZY |
1262 | .meta.flags = flags, |
1263 | .data = sta, | |
1264 | }; | |
1265 | ||
1266 | if (flags & CMD_ASYNC) | |
bb8c093b | 1267 | cmd.meta.u.callback = iwl3945_add_sta_sync_callback; |
b481de9c ZY |
1268 | else |
1269 | cmd.meta.flags |= CMD_WANT_SKB; | |
1270 | ||
bb8c093b | 1271 | rc = iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1272 | |
1273 | if (rc || (flags & CMD_ASYNC)) | |
1274 | return rc; | |
1275 | ||
bb8c093b | 1276 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1277 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1278 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1279 | res->hdr.flags); | |
1280 | rc = -EIO; | |
1281 | } | |
1282 | ||
1283 | if (rc == 0) { | |
1284 | switch (res->u.add_sta.status) { | |
1285 | case ADD_STA_SUCCESS_MSK: | |
1286 | IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n"); | |
1287 | break; | |
1288 | default: | |
1289 | rc = -EIO; | |
1290 | IWL_WARNING("REPLY_ADD_STA failed\n"); | |
1291 | break; | |
1292 | } | |
1293 | } | |
1294 | ||
1295 | priv->alloc_rxb_skb--; | |
1296 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1297 | ||
1298 | return rc; | |
1299 | } | |
1300 | ||
bb8c093b | 1301 | static int iwl3945_update_sta_key_info(struct iwl3945_priv *priv, |
b481de9c ZY |
1302 | struct ieee80211_key_conf *keyconf, |
1303 | u8 sta_id) | |
1304 | { | |
1305 | unsigned long flags; | |
1306 | __le16 key_flags = 0; | |
1307 | ||
1308 | switch (keyconf->alg) { | |
1309 | case ALG_CCMP: | |
1310 | key_flags |= STA_KEY_FLG_CCMP; | |
1311 | key_flags |= cpu_to_le16( | |
1312 | keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
1313 | key_flags &= ~STA_KEY_FLG_INVALID; | |
1314 | break; | |
1315 | case ALG_TKIP: | |
1316 | case ALG_WEP: | |
b481de9c ZY |
1317 | default: |
1318 | return -EINVAL; | |
1319 | } | |
1320 | spin_lock_irqsave(&priv->sta_lock, flags); | |
1321 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; | |
1322 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
1323 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, | |
1324 | keyconf->keylen); | |
1325 | ||
1326 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, | |
1327 | keyconf->keylen); | |
1328 | priv->stations[sta_id].sta.key.key_flags = key_flags; | |
1329 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1330 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1331 | ||
1332 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1333 | ||
1334 | IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n"); | |
bb8c093b | 1335 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1336 | return 0; |
1337 | } | |
1338 | ||
bb8c093b | 1339 | static int iwl3945_clear_sta_key_info(struct iwl3945_priv *priv, u8 sta_id) |
b481de9c ZY |
1340 | { |
1341 | unsigned long flags; | |
1342 | ||
1343 | spin_lock_irqsave(&priv->sta_lock, flags); | |
bb8c093b CH |
1344 | memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key)); |
1345 | memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl3945_keyinfo)); | |
b481de9c ZY |
1346 | priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
1347 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1348 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1349 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1350 | ||
1351 | IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n"); | |
bb8c093b | 1352 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1353 | return 0; |
1354 | } | |
1355 | ||
bb8c093b | 1356 | static void iwl3945_clear_free_frames(struct iwl3945_priv *priv) |
b481de9c ZY |
1357 | { |
1358 | struct list_head *element; | |
1359 | ||
1360 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
1361 | priv->frames_count); | |
1362 | ||
1363 | while (!list_empty(&priv->free_frames)) { | |
1364 | element = priv->free_frames.next; | |
1365 | list_del(element); | |
bb8c093b | 1366 | kfree(list_entry(element, struct iwl3945_frame, list)); |
b481de9c ZY |
1367 | priv->frames_count--; |
1368 | } | |
1369 | ||
1370 | if (priv->frames_count) { | |
1371 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
1372 | priv->frames_count); | |
1373 | priv->frames_count = 0; | |
1374 | } | |
1375 | } | |
1376 | ||
bb8c093b | 1377 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl3945_priv *priv) |
b481de9c | 1378 | { |
bb8c093b | 1379 | struct iwl3945_frame *frame; |
b481de9c ZY |
1380 | struct list_head *element; |
1381 | if (list_empty(&priv->free_frames)) { | |
1382 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
1383 | if (!frame) { | |
1384 | IWL_ERROR("Could not allocate frame!\n"); | |
1385 | return NULL; | |
1386 | } | |
1387 | ||
1388 | priv->frames_count++; | |
1389 | return frame; | |
1390 | } | |
1391 | ||
1392 | element = priv->free_frames.next; | |
1393 | list_del(element); | |
bb8c093b | 1394 | return list_entry(element, struct iwl3945_frame, list); |
b481de9c ZY |
1395 | } |
1396 | ||
bb8c093b | 1397 | static void iwl3945_free_frame(struct iwl3945_priv *priv, struct iwl3945_frame *frame) |
b481de9c ZY |
1398 | { |
1399 | memset(frame, 0, sizeof(*frame)); | |
1400 | list_add(&frame->list, &priv->free_frames); | |
1401 | } | |
1402 | ||
bb8c093b | 1403 | unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv, |
b481de9c | 1404 | struct ieee80211_hdr *hdr, |
73ec1cc2 | 1405 | int left) |
b481de9c ZY |
1406 | { |
1407 | ||
bb8c093b | 1408 | if (!iwl3945_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
1409 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
1410 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
1411 | return 0; |
1412 | ||
1413 | if (priv->ibss_beacon->len > left) | |
1414 | return 0; | |
1415 | ||
1416 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
1417 | ||
1418 | return priv->ibss_beacon->len; | |
1419 | } | |
1420 | ||
c24f0817 | 1421 | static u8 iwl3945_rate_get_lowest_plcp(struct iwl3945_priv *priv) |
b481de9c ZY |
1422 | { |
1423 | u8 i; | |
c24f0817 KA |
1424 | int rate_mask; |
1425 | ||
1426 | /* Set rate mask*/ | |
1427 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
dbce56a4 | 1428 | rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK; |
c24f0817 | 1429 | else |
dbce56a4 | 1430 | rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK; |
b481de9c ZY |
1431 | |
1432 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; | |
bb8c093b | 1433 | i = iwl3945_rates[i].next_ieee) { |
b481de9c | 1434 | if (rate_mask & (1 << i)) |
bb8c093b | 1435 | return iwl3945_rates[i].plcp; |
b481de9c ZY |
1436 | } |
1437 | ||
c24f0817 KA |
1438 | /* No valid rate was found. Assign the lowest one */ |
1439 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
1440 | return IWL_RATE_1M_PLCP; | |
1441 | else | |
1442 | return IWL_RATE_6M_PLCP; | |
b481de9c ZY |
1443 | } |
1444 | ||
bb8c093b | 1445 | static int iwl3945_send_beacon_cmd(struct iwl3945_priv *priv) |
b481de9c | 1446 | { |
bb8c093b | 1447 | struct iwl3945_frame *frame; |
b481de9c ZY |
1448 | unsigned int frame_size; |
1449 | int rc; | |
1450 | u8 rate; | |
1451 | ||
bb8c093b | 1452 | frame = iwl3945_get_free_frame(priv); |
b481de9c ZY |
1453 | |
1454 | if (!frame) { | |
1455 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
1456 | "command.\n"); | |
1457 | return -ENOMEM; | |
1458 | } | |
1459 | ||
c24f0817 | 1460 | rate = iwl3945_rate_get_lowest_plcp(priv); |
b481de9c | 1461 | |
bb8c093b | 1462 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 1463 | |
bb8c093b | 1464 | rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
1465 | &frame->u.cmd[0]); |
1466 | ||
bb8c093b | 1467 | iwl3945_free_frame(priv, frame); |
b481de9c ZY |
1468 | |
1469 | return rc; | |
1470 | } | |
1471 | ||
1472 | /****************************************************************************** | |
1473 | * | |
1474 | * EEPROM related functions | |
1475 | * | |
1476 | ******************************************************************************/ | |
1477 | ||
bb8c093b | 1478 | static void get_eeprom_mac(struct iwl3945_priv *priv, u8 *mac) |
b481de9c ZY |
1479 | { |
1480 | memcpy(mac, priv->eeprom.mac_address, 6); | |
1481 | } | |
1482 | ||
74a3a250 RC |
1483 | /* |
1484 | * Clear the OWNER_MSK, to establish driver (instead of uCode running on | |
1485 | * embedded controller) as EEPROM reader; each read is a series of pulses | |
1486 | * to/from the EEPROM chip, not a single event, so even reads could conflict | |
1487 | * if they weren't arbitrated by some ownership mechanism. Here, the driver | |
1488 | * simply claims ownership, which should be safe when this function is called | |
1489 | * (i.e. before loading uCode!). | |
1490 | */ | |
1491 | static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv) | |
1492 | { | |
1493 | _iwl3945_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); | |
1494 | return 0; | |
1495 | } | |
1496 | ||
b481de9c | 1497 | /** |
bb8c093b | 1498 | * iwl3945_eeprom_init - read EEPROM contents |
b481de9c | 1499 | * |
6440adb5 | 1500 | * Load the EEPROM contents from adapter into priv->eeprom |
b481de9c ZY |
1501 | * |
1502 | * NOTE: This routine uses the non-debug IO access functions. | |
1503 | */ | |
bb8c093b | 1504 | int iwl3945_eeprom_init(struct iwl3945_priv *priv) |
b481de9c | 1505 | { |
58ff6d4d | 1506 | u16 *e = (u16 *)&priv->eeprom; |
bb8c093b | 1507 | u32 gp = iwl3945_read32(priv, CSR_EEPROM_GP); |
b481de9c | 1508 | int sz = sizeof(priv->eeprom); |
3d5717ad | 1509 | int ret; |
b481de9c ZY |
1510 | u16 addr; |
1511 | ||
1512 | /* The EEPROM structure has several padding buffers within it | |
1513 | * and when adding new EEPROM maps is subject to programmer errors | |
1514 | * which may be very difficult to identify without explicitly | |
1515 | * checking the resulting size of the eeprom map. */ | |
1516 | BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE); | |
1517 | ||
1518 | if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) { | |
6f147926 | 1519 | IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x\n", gp); |
b481de9c ZY |
1520 | return -ENOENT; |
1521 | } | |
1522 | ||
6440adb5 | 1523 | /* Make sure driver (instead of uCode) is allowed to read EEPROM */ |
3d5717ad ZY |
1524 | ret = iwl3945_eeprom_acquire_semaphore(priv); |
1525 | if (ret < 0) { | |
91e17473 | 1526 | IWL_ERROR("Failed to acquire EEPROM semaphore.\n"); |
b481de9c ZY |
1527 | return -ENOENT; |
1528 | } | |
1529 | ||
1530 | /* eeprom is an array of 16bit values */ | |
1531 | for (addr = 0; addr < sz; addr += sizeof(u16)) { | |
3d5717ad | 1532 | u32 r; |
b481de9c | 1533 | |
3d5717ad ZY |
1534 | _iwl3945_write32(priv, CSR_EEPROM_REG, |
1535 | CSR_EEPROM_REG_MSK_ADDR & (addr << 1)); | |
1536 | _iwl3945_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD); | |
1537 | ret = iwl3945_poll_direct_bit(priv, CSR_EEPROM_REG, | |
1538 | CSR_EEPROM_REG_READ_VALID_MSK, | |
1539 | IWL_EEPROM_ACCESS_TIMEOUT); | |
1540 | if (ret < 0) { | |
6f147926 | 1541 | IWL_ERROR("Time out reading EEPROM[%d]\n", addr); |
3d5717ad | 1542 | return ret; |
b481de9c | 1543 | } |
3d5717ad ZY |
1544 | |
1545 | r = _iwl3945_read_direct32(priv, CSR_EEPROM_REG); | |
58ff6d4d | 1546 | e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16)); |
b481de9c ZY |
1547 | } |
1548 | ||
1549 | return 0; | |
1550 | } | |
1551 | ||
bb8c093b | 1552 | static void iwl3945_unset_hw_setting(struct iwl3945_priv *priv) |
b481de9c ZY |
1553 | { |
1554 | if (priv->hw_setting.shared_virt) | |
1555 | pci_free_consistent(priv->pci_dev, | |
bb8c093b | 1556 | sizeof(struct iwl3945_shared), |
b481de9c ZY |
1557 | priv->hw_setting.shared_virt, |
1558 | priv->hw_setting.shared_phys); | |
1559 | } | |
1560 | ||
1561 | /** | |
bb8c093b | 1562 | * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
1563 | * |
1564 | * return : set the bit for each supported rate insert in ie | |
1565 | */ | |
bb8c093b | 1566 | static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 1567 | u16 basic_rate, int *left) |
b481de9c ZY |
1568 | { |
1569 | u16 ret_rates = 0, bit; | |
1570 | int i; | |
c7c46676 TW |
1571 | u8 *cnt = ie; |
1572 | u8 *rates = ie + 1; | |
b481de9c ZY |
1573 | |
1574 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
1575 | if (bit & supported_rate) { | |
1576 | ret_rates |= bit; | |
bb8c093b | 1577 | rates[*cnt] = iwl3945_rates[i].ieee | |
c7c46676 TW |
1578 | ((bit & basic_rate) ? 0x80 : 0x00); |
1579 | (*cnt)++; | |
1580 | (*left)--; | |
1581 | if ((*left <= 0) || | |
1582 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
1583 | break; |
1584 | } | |
1585 | } | |
1586 | ||
1587 | return ret_rates; | |
1588 | } | |
1589 | ||
1590 | /** | |
bb8c093b | 1591 | * iwl3945_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 1592 | */ |
bb8c093b | 1593 | static u16 iwl3945_fill_probe_req(struct iwl3945_priv *priv, |
b481de9c | 1594 | struct ieee80211_mgmt *frame, |
430cfe95 | 1595 | int left) |
b481de9c ZY |
1596 | { |
1597 | int len = 0; | |
1598 | u8 *pos = NULL; | |
c7c46676 | 1599 | u16 active_rates, ret_rates, cck_rates; |
b481de9c ZY |
1600 | |
1601 | /* Make sure there is enough space for the probe request, | |
1602 | * two mandatory IEs and the data */ | |
1603 | left -= 24; | |
1604 | if (left < 0) | |
1605 | return 0; | |
1606 | len += 24; | |
1607 | ||
1608 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
bb8c093b | 1609 | memcpy(frame->da, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c | 1610 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
bb8c093b | 1611 | memcpy(frame->bssid, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c ZY |
1612 | frame->seq_ctrl = 0; |
1613 | ||
1614 | /* fill in our indirect SSID IE */ | |
1615 | /* ...next IE... */ | |
1616 | ||
1617 | left -= 2; | |
1618 | if (left < 0) | |
1619 | return 0; | |
1620 | len += 2; | |
1621 | pos = &(frame->u.probe_req.variable[0]); | |
1622 | *pos++ = WLAN_EID_SSID; | |
1623 | *pos++ = 0; | |
1624 | ||
b481de9c ZY |
1625 | /* fill in supported rate */ |
1626 | /* ...next IE... */ | |
1627 | left -= 2; | |
1628 | if (left < 0) | |
1629 | return 0; | |
c7c46676 | 1630 | |
b481de9c ZY |
1631 | /* ... fill it in... */ |
1632 | *pos++ = WLAN_EID_SUPP_RATES; | |
1633 | *pos = 0; | |
c7c46676 TW |
1634 | |
1635 | priv->active_rate = priv->rates_mask; | |
1636 | active_rates = priv->active_rate; | |
b481de9c ZY |
1637 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; |
1638 | ||
c7c46676 | 1639 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 1640 | ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates, |
c7c46676 TW |
1641 | priv->active_rate_basic, &left); |
1642 | active_rates &= ~ret_rates; | |
1643 | ||
bb8c093b | 1644 | ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 TW |
1645 | priv->active_rate_basic, &left); |
1646 | active_rates &= ~ret_rates; | |
1647 | ||
b481de9c ZY |
1648 | len += 2 + *pos; |
1649 | pos += (*pos) + 1; | |
c7c46676 | 1650 | if (active_rates == 0) |
b481de9c ZY |
1651 | goto fill_end; |
1652 | ||
1653 | /* fill in supported extended rate */ | |
1654 | /* ...next IE... */ | |
1655 | left -= 2; | |
1656 | if (left < 0) | |
1657 | return 0; | |
1658 | /* ... fill it in... */ | |
1659 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
1660 | *pos = 0; | |
bb8c093b | 1661 | iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 | 1662 | priv->active_rate_basic, &left); |
b481de9c ZY |
1663 | if (*pos > 0) |
1664 | len += 2 + *pos; | |
1665 | ||
1666 | fill_end: | |
1667 | return (u16)len; | |
1668 | } | |
1669 | ||
1670 | /* | |
1671 | * QoS support | |
1672 | */ | |
bb8c093b CH |
1673 | static int iwl3945_send_qos_params_command(struct iwl3945_priv *priv, |
1674 | struct iwl3945_qosparam_cmd *qos) | |
b481de9c ZY |
1675 | { |
1676 | ||
bb8c093b CH |
1677 | return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
1678 | sizeof(struct iwl3945_qosparam_cmd), qos); | |
b481de9c ZY |
1679 | } |
1680 | ||
bb8c093b | 1681 | static void iwl3945_reset_qos(struct iwl3945_priv *priv) |
b481de9c ZY |
1682 | { |
1683 | u16 cw_min = 15; | |
1684 | u16 cw_max = 1023; | |
1685 | u8 aifs = 2; | |
1686 | u8 is_legacy = 0; | |
1687 | unsigned long flags; | |
1688 | int i; | |
1689 | ||
1690 | spin_lock_irqsave(&priv->lock, flags); | |
1691 | priv->qos_data.qos_active = 0; | |
1692 | ||
6d1ef1a3 WT |
1693 | /* QoS always active in AP and ADHOC mode |
1694 | * In STA mode wait for association | |
1695 | */ | |
1696 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC || | |
1697 | priv->iw_mode == NL80211_IFTYPE_AP) | |
1698 | priv->qos_data.qos_active = 1; | |
1699 | else | |
1700 | priv->qos_data.qos_active = 0; | |
1701 | ||
1702 | ||
1703 | /* check for legacy mode */ | |
1704 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC && | |
1705 | (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) || | |
1706 | (priv->iw_mode == NL80211_IFTYPE_STATION && | |
1707 | (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) { | |
b481de9c ZY |
1708 | cw_min = 31; |
1709 | is_legacy = 1; | |
1710 | } | |
1711 | ||
1712 | if (priv->qos_data.qos_active) | |
1713 | aifs = 3; | |
1714 | ||
1715 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); | |
1716 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); | |
1717 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; | |
1718 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; | |
1719 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; | |
1720 | ||
1721 | if (priv->qos_data.qos_active) { | |
1722 | i = 1; | |
1723 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); | |
1724 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); | |
1725 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; | |
1726 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1727 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1728 | ||
1729 | i = 2; | |
1730 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1731 | cpu_to_le16((cw_min + 1) / 2 - 1); | |
1732 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1733 | cpu_to_le16(cw_max); | |
1734 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1735 | if (is_legacy) | |
1736 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1737 | cpu_to_le16(6016); | |
1738 | else | |
1739 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1740 | cpu_to_le16(3008); | |
1741 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1742 | ||
1743 | i = 3; | |
1744 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1745 | cpu_to_le16((cw_min + 1) / 4 - 1); | |
1746 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1747 | cpu_to_le16((cw_max + 1) / 2 - 1); | |
1748 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1749 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1750 | if (is_legacy) | |
1751 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1752 | cpu_to_le16(3264); | |
1753 | else | |
1754 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1755 | cpu_to_le16(1504); | |
1756 | } else { | |
1757 | for (i = 1; i < 4; i++) { | |
1758 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1759 | cpu_to_le16(cw_min); | |
1760 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1761 | cpu_to_le16(cw_max); | |
1762 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; | |
1763 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1764 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1765 | } | |
1766 | } | |
1767 | IWL_DEBUG_QOS("set QoS to default \n"); | |
1768 | ||
1769 | spin_unlock_irqrestore(&priv->lock, flags); | |
1770 | } | |
1771 | ||
bb8c093b | 1772 | static void iwl3945_activate_qos(struct iwl3945_priv *priv, u8 force) |
b481de9c ZY |
1773 | { |
1774 | unsigned long flags; | |
1775 | ||
b481de9c ZY |
1776 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
1777 | return; | |
1778 | ||
b481de9c ZY |
1779 | spin_lock_irqsave(&priv->lock, flags); |
1780 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
1781 | ||
1782 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
1783 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
1784 | priv->qos_data.def_qos_parm.qos_flags |= | |
1785 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
1786 | ||
1787 | if (priv->qos_data.qos_active) | |
1788 | priv->qos_data.def_qos_parm.qos_flags |= | |
1789 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
1790 | ||
1791 | spin_unlock_irqrestore(&priv->lock, flags); | |
1792 | ||
bb8c093b | 1793 | if (force || iwl3945_is_associated(priv)) { |
a96a27f9 | 1794 | IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n", |
b481de9c ZY |
1795 | priv->qos_data.qos_active); |
1796 | ||
bb8c093b | 1797 | iwl3945_send_qos_params_command(priv, |
b481de9c ZY |
1798 | &(priv->qos_data.def_qos_parm)); |
1799 | } | |
1800 | } | |
1801 | ||
b481de9c ZY |
1802 | /* |
1803 | * Power management (not Tx power!) functions | |
1804 | */ | |
1805 | #define MSEC_TO_USEC 1024 | |
1806 | ||
1807 | #define NOSLP __constant_cpu_to_le32(0) | |
1808 | #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK | |
1809 | #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC) | |
1810 | #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \ | |
1811 | __constant_cpu_to_le32(X1), \ | |
1812 | __constant_cpu_to_le32(X2), \ | |
1813 | __constant_cpu_to_le32(X3), \ | |
1814 | __constant_cpu_to_le32(X4)} | |
1815 | ||
1816 | ||
1817 | /* default power management (not Tx power) table values */ | |
a96a27f9 | 1818 | /* for TIM 0-10 */ |
bb8c093b | 1819 | static struct iwl3945_power_vec_entry range_0[IWL_POWER_AC] = { |
b481de9c ZY |
1820 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1821 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0}, | |
1822 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0}, | |
1823 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0}, | |
1824 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1}, | |
1825 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1} | |
1826 | }; | |
1827 | ||
a96a27f9 | 1828 | /* for TIM > 10 */ |
bb8c093b | 1829 | static struct iwl3945_power_vec_entry range_1[IWL_POWER_AC] = { |
b481de9c ZY |
1830 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1831 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), | |
1832 | SLP_VEC(1, 2, 3, 4, 0xFF)}, 0}, | |
1833 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), | |
1834 | SLP_VEC(2, 4, 6, 7, 0xFF)}, 0}, | |
1835 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), | |
1836 | SLP_VEC(2, 6, 9, 9, 0xFF)}, 0}, | |
1837 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0}, | |
1838 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), | |
1839 | SLP_VEC(4, 7, 10, 10, 0xFF)}, 0} | |
1840 | }; | |
1841 | ||
bb8c093b | 1842 | int iwl3945_power_init_handle(struct iwl3945_priv *priv) |
b481de9c ZY |
1843 | { |
1844 | int rc = 0, i; | |
bb8c093b CH |
1845 | struct iwl3945_power_mgr *pow_data; |
1846 | int size = sizeof(struct iwl3945_power_vec_entry) * IWL_POWER_AC; | |
b481de9c ZY |
1847 | u16 pci_pm; |
1848 | ||
1849 | IWL_DEBUG_POWER("Initialize power \n"); | |
1850 | ||
1851 | pow_data = &(priv->power_data); | |
1852 | ||
1853 | memset(pow_data, 0, sizeof(*pow_data)); | |
1854 | ||
1855 | pow_data->active_index = IWL_POWER_RANGE_0; | |
1856 | pow_data->dtim_val = 0xffff; | |
1857 | ||
1858 | memcpy(&pow_data->pwr_range_0[0], &range_0[0], size); | |
1859 | memcpy(&pow_data->pwr_range_1[0], &range_1[0], size); | |
1860 | ||
1861 | rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm); | |
1862 | if (rc != 0) | |
1863 | return 0; | |
1864 | else { | |
bb8c093b | 1865 | struct iwl3945_powertable_cmd *cmd; |
b481de9c ZY |
1866 | |
1867 | IWL_DEBUG_POWER("adjust power command flags\n"); | |
1868 | ||
1869 | for (i = 0; i < IWL_POWER_AC; i++) { | |
1870 | cmd = &pow_data->pwr_range_0[i].cmd; | |
1871 | ||
1872 | if (pci_pm & 0x1) | |
1873 | cmd->flags &= ~IWL_POWER_PCI_PM_MSK; | |
1874 | else | |
1875 | cmd->flags |= IWL_POWER_PCI_PM_MSK; | |
1876 | } | |
1877 | } | |
1878 | return rc; | |
1879 | } | |
1880 | ||
bb8c093b CH |
1881 | static int iwl3945_update_power_cmd(struct iwl3945_priv *priv, |
1882 | struct iwl3945_powertable_cmd *cmd, u32 mode) | |
b481de9c ZY |
1883 | { |
1884 | int rc = 0, i; | |
1885 | u8 skip; | |
1886 | u32 max_sleep = 0; | |
bb8c093b | 1887 | struct iwl3945_power_vec_entry *range; |
b481de9c | 1888 | u8 period = 0; |
bb8c093b | 1889 | struct iwl3945_power_mgr *pow_data; |
b481de9c ZY |
1890 | |
1891 | if (mode > IWL_POWER_INDEX_5) { | |
1892 | IWL_DEBUG_POWER("Error invalid power mode \n"); | |
1893 | return -1; | |
1894 | } | |
1895 | pow_data = &(priv->power_data); | |
1896 | ||
1897 | if (pow_data->active_index == IWL_POWER_RANGE_0) | |
1898 | range = &pow_data->pwr_range_0[0]; | |
1899 | else | |
1900 | range = &pow_data->pwr_range_1[1]; | |
1901 | ||
bb8c093b | 1902 | memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd)); |
b481de9c ZY |
1903 | |
1904 | #ifdef IWL_MAC80211_DISABLE | |
1905 | if (priv->assoc_network != NULL) { | |
1906 | unsigned long flags; | |
1907 | ||
1908 | period = priv->assoc_network->tim.tim_period; | |
1909 | } | |
1910 | #endif /*IWL_MAC80211_DISABLE */ | |
1911 | skip = range[mode].no_dtim; | |
1912 | ||
1913 | if (period == 0) { | |
1914 | period = 1; | |
1915 | skip = 0; | |
1916 | } | |
1917 | ||
1918 | if (skip == 0) { | |
1919 | max_sleep = period; | |
1920 | cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1921 | } else { | |
1922 | __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]; | |
1923 | max_sleep = (le32_to_cpu(slp_itrvl) / period) * period; | |
1924 | cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1925 | } | |
1926 | ||
1927 | for (i = 0; i < IWL_POWER_VEC_SIZE; i++) { | |
1928 | if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep) | |
1929 | cmd->sleep_interval[i] = cpu_to_le32(max_sleep); | |
1930 | } | |
1931 | ||
1932 | IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags); | |
1933 | IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout)); | |
1934 | IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout)); | |
1935 | IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n", | |
1936 | le32_to_cpu(cmd->sleep_interval[0]), | |
1937 | le32_to_cpu(cmd->sleep_interval[1]), | |
1938 | le32_to_cpu(cmd->sleep_interval[2]), | |
1939 | le32_to_cpu(cmd->sleep_interval[3]), | |
1940 | le32_to_cpu(cmd->sleep_interval[4])); | |
1941 | ||
1942 | return rc; | |
1943 | } | |
1944 | ||
bb8c093b | 1945 | static int iwl3945_send_power_mode(struct iwl3945_priv *priv, u32 mode) |
b481de9c | 1946 | { |
9a62f73b | 1947 | u32 uninitialized_var(final_mode); |
b481de9c | 1948 | int rc; |
bb8c093b | 1949 | struct iwl3945_powertable_cmd cmd; |
b481de9c ZY |
1950 | |
1951 | /* If on battery, set to 3, | |
01ebd063 | 1952 | * if plugged into AC power, set to CAM ("continuously aware mode"), |
b481de9c ZY |
1953 | * else user level */ |
1954 | switch (mode) { | |
1955 | case IWL_POWER_BATTERY: | |
1956 | final_mode = IWL_POWER_INDEX_3; | |
1957 | break; | |
1958 | case IWL_POWER_AC: | |
1959 | final_mode = IWL_POWER_MODE_CAM; | |
1960 | break; | |
1961 | default: | |
1962 | final_mode = mode; | |
1963 | break; | |
1964 | } | |
1965 | ||
bb8c093b | 1966 | iwl3945_update_power_cmd(priv, &cmd, final_mode); |
b481de9c | 1967 | |
bb8c093b | 1968 | rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd); |
b481de9c ZY |
1969 | |
1970 | if (final_mode == IWL_POWER_MODE_CAM) | |
1971 | clear_bit(STATUS_POWER_PMI, &priv->status); | |
1972 | else | |
1973 | set_bit(STATUS_POWER_PMI, &priv->status); | |
1974 | ||
1975 | return rc; | |
1976 | } | |
1977 | ||
b481de9c | 1978 | /** |
bb8c093b | 1979 | * iwl3945_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
1980 | * |
1981 | * NOTE: priv->mutex is not required before calling this function | |
1982 | */ | |
bb8c093b | 1983 | static int iwl3945_scan_cancel(struct iwl3945_priv *priv) |
b481de9c ZY |
1984 | { |
1985 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1986 | clear_bit(STATUS_SCANNING, &priv->status); | |
1987 | return 0; | |
1988 | } | |
1989 | ||
1990 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1991 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1992 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
1993 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1994 | queue_work(priv->workqueue, &priv->abort_scan); | |
1995 | ||
1996 | } else | |
1997 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
1998 | ||
1999 | return test_bit(STATUS_SCANNING, &priv->status); | |
2000 | } | |
2001 | ||
2002 | return 0; | |
2003 | } | |
2004 | ||
2005 | /** | |
bb8c093b | 2006 | * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
2007 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
2008 | * | |
2009 | * NOTE: priv->mutex must be held before calling this function | |
2010 | */ | |
bb8c093b | 2011 | static int iwl3945_scan_cancel_timeout(struct iwl3945_priv *priv, unsigned long ms) |
b481de9c ZY |
2012 | { |
2013 | unsigned long now = jiffies; | |
2014 | int ret; | |
2015 | ||
bb8c093b | 2016 | ret = iwl3945_scan_cancel(priv); |
b481de9c ZY |
2017 | if (ret && ms) { |
2018 | mutex_unlock(&priv->mutex); | |
2019 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
2020 | test_bit(STATUS_SCANNING, &priv->status)) | |
2021 | msleep(1); | |
2022 | mutex_lock(&priv->mutex); | |
2023 | ||
2024 | return test_bit(STATUS_SCANNING, &priv->status); | |
2025 | } | |
2026 | ||
2027 | return ret; | |
2028 | } | |
2029 | ||
b481de9c ZY |
2030 | #define MAX_UCODE_BEACON_INTERVAL 1024 |
2031 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
2032 | ||
bb8c093b | 2033 | static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
2034 | { |
2035 | u16 new_val = 0; | |
2036 | u16 beacon_factor = 0; | |
2037 | ||
2038 | beacon_factor = | |
2039 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
2040 | / MAX_UCODE_BEACON_INTERVAL; | |
2041 | new_val = beacon_val / beacon_factor; | |
2042 | ||
2043 | return cpu_to_le16(new_val); | |
2044 | } | |
2045 | ||
bb8c093b | 2046 | static void iwl3945_setup_rxon_timing(struct iwl3945_priv *priv) |
b481de9c ZY |
2047 | { |
2048 | u64 interval_tm_unit; | |
2049 | u64 tsf, result; | |
2050 | unsigned long flags; | |
2051 | struct ieee80211_conf *conf = NULL; | |
2052 | u16 beacon_int = 0; | |
2053 | ||
2054 | conf = ieee80211_get_hw_conf(priv->hw); | |
2055 | ||
2056 | spin_lock_irqsave(&priv->lock, flags); | |
2057 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1); | |
2058 | priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0); | |
2059 | ||
2060 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
2061 | ||
2062 | tsf = priv->timestamp1; | |
2063 | tsf = ((tsf << 32) | priv->timestamp0); | |
2064 | ||
2065 | beacon_int = priv->beacon_int; | |
2066 | spin_unlock_irqrestore(&priv->lock, flags); | |
2067 | ||
05c914fe | 2068 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
b481de9c ZY |
2069 | if (beacon_int == 0) { |
2070 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
2071 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
2072 | } else { | |
2073 | priv->rxon_timing.beacon_interval = | |
2074 | cpu_to_le16(beacon_int); | |
2075 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2076 | iwl3945_adjust_beacon_interval( |
b481de9c ZY |
2077 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
2078 | } | |
2079 | ||
2080 | priv->rxon_timing.atim_window = 0; | |
2081 | } else { | |
2082 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2083 | iwl3945_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
2084 | /* TODO: we need to get atim_window from upper stack |
2085 | * for now we set to 0 */ | |
2086 | priv->rxon_timing.atim_window = 0; | |
2087 | } | |
2088 | ||
2089 | interval_tm_unit = | |
2090 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
2091 | result = do_div(tsf, interval_tm_unit); | |
2092 | priv->rxon_timing.beacon_init_val = | |
2093 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
2094 | ||
2095 | IWL_DEBUG_ASSOC | |
2096 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
2097 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
2098 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
2099 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
2100 | } | |
2101 | ||
bb8c093b | 2102 | static int iwl3945_scan_initiate(struct iwl3945_priv *priv) |
b481de9c | 2103 | { |
bb8c093b | 2104 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
2105 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
2106 | return -EIO; | |
2107 | } | |
2108 | ||
2109 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
2110 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
2111 | return -EAGAIN; | |
2112 | } | |
2113 | ||
2114 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2115 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
2116 | "Queuing.\n"); | |
2117 | return -EAGAIN; | |
2118 | } | |
2119 | ||
2120 | IWL_DEBUG_INFO("Starting scan...\n"); | |
66b5004d RR |
2121 | if (priv->cfg->sku & IWL_SKU_G) |
2122 | priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ); | |
2123 | if (priv->cfg->sku & IWL_SKU_A) | |
2124 | priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
2125 | set_bit(STATUS_SCANNING, &priv->status); |
2126 | priv->scan_start = jiffies; | |
2127 | priv->scan_pass_start = priv->scan_start; | |
2128 | ||
2129 | queue_work(priv->workqueue, &priv->request_scan); | |
2130 | ||
2131 | return 0; | |
2132 | } | |
2133 | ||
bb8c093b | 2134 | static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv *priv, int hw_decrypt) |
b481de9c | 2135 | { |
bb8c093b | 2136 | struct iwl3945_rxon_cmd *rxon = &priv->staging_rxon; |
b481de9c ZY |
2137 | |
2138 | if (hw_decrypt) | |
2139 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
2140 | else | |
2141 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
2142 | ||
2143 | return 0; | |
2144 | } | |
2145 | ||
8318d78a JB |
2146 | static void iwl3945_set_flags_for_phymode(struct iwl3945_priv *priv, |
2147 | enum ieee80211_band band) | |
b481de9c | 2148 | { |
8318d78a | 2149 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
2150 | priv->staging_rxon.flags &= |
2151 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
2152 | | RXON_FLG_CCK_MSK); | |
2153 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2154 | } else { | |
bb8c093b | 2155 | /* Copied from iwl3945_bg_post_associate() */ |
b481de9c ZY |
2156 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
2157 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2158 | else | |
2159 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2160 | ||
05c914fe | 2161 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2162 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
2163 | ||
2164 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
2165 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
2166 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
2167 | } | |
2168 | } | |
2169 | ||
2170 | /* | |
01ebd063 | 2171 | * initialize rxon structure with default values from eeprom |
b481de9c | 2172 | */ |
60294de3 ZY |
2173 | static void iwl3945_connection_init_rx_config(struct iwl3945_priv *priv, |
2174 | int mode) | |
b481de9c | 2175 | { |
bb8c093b | 2176 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
2177 | |
2178 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
2179 | ||
60294de3 | 2180 | switch (mode) { |
05c914fe | 2181 | case NL80211_IFTYPE_AP: |
b481de9c ZY |
2182 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; |
2183 | break; | |
2184 | ||
05c914fe | 2185 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2186 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; |
2187 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
2188 | break; | |
2189 | ||
05c914fe | 2190 | case NL80211_IFTYPE_ADHOC: |
b481de9c ZY |
2191 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; |
2192 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
2193 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
2194 | RXON_FILTER_ACCEPT_GRP_MSK; | |
2195 | break; | |
2196 | ||
05c914fe | 2197 | case NL80211_IFTYPE_MONITOR: |
b481de9c ZY |
2198 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; |
2199 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
2200 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
2201 | break; | |
69dc5d9d | 2202 | default: |
60294de3 | 2203 | IWL_ERROR("Unsupported interface type %d\n", mode); |
69dc5d9d | 2204 | break; |
b481de9c ZY |
2205 | } |
2206 | ||
2207 | #if 0 | |
2208 | /* TODO: Figure out when short_preamble would be set and cache from | |
2209 | * that */ | |
2210 | if (!hw_to_local(priv->hw)->short_preamble) | |
2211 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2212 | else | |
2213 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2214 | #endif | |
2215 | ||
8318d78a | 2216 | ch_info = iwl3945_get_channel_info(priv, priv->band, |
25b3f57c | 2217 | le16_to_cpu(priv->active_rxon.channel)); |
b481de9c ZY |
2218 | |
2219 | if (!ch_info) | |
2220 | ch_info = &priv->channel_info[0]; | |
2221 | ||
2222 | /* | |
2223 | * in some case A channels are all non IBSS | |
2224 | * in this case force B/G channel | |
2225 | */ | |
60294de3 | 2226 | if ((mode == NL80211_IFTYPE_ADHOC) && !(is_channel_ibss(ch_info))) |
b481de9c ZY |
2227 | ch_info = &priv->channel_info[0]; |
2228 | ||
2229 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
2230 | if (is_channel_a_band(ch_info)) | |
8318d78a | 2231 | priv->band = IEEE80211_BAND_5GHZ; |
b481de9c | 2232 | else |
8318d78a | 2233 | priv->band = IEEE80211_BAND_2GHZ; |
b481de9c | 2234 | |
8318d78a | 2235 | iwl3945_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
2236 | |
2237 | priv->staging_rxon.ofdm_basic_rates = | |
2238 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2239 | priv->staging_rxon.cck_basic_rates = | |
2240 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2241 | } | |
2242 | ||
bb8c093b | 2243 | static int iwl3945_set_mode(struct iwl3945_priv *priv, int mode) |
b481de9c | 2244 | { |
05c914fe | 2245 | if (mode == NL80211_IFTYPE_ADHOC) { |
bb8c093b | 2246 | const struct iwl3945_channel_info *ch_info; |
b481de9c | 2247 | |
bb8c093b | 2248 | ch_info = iwl3945_get_channel_info(priv, |
8318d78a | 2249 | priv->band, |
b481de9c ZY |
2250 | le16_to_cpu(priv->staging_rxon.channel)); |
2251 | ||
2252 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
2253 | IWL_ERROR("channel %d not IBSS channel\n", | |
2254 | le16_to_cpu(priv->staging_rxon.channel)); | |
2255 | return -EINVAL; | |
2256 | } | |
2257 | } | |
2258 | ||
60294de3 | 2259 | iwl3945_connection_init_rx_config(priv, mode); |
b481de9c ZY |
2260 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2261 | ||
bb8c093b | 2262 | iwl3945_clear_stations_table(priv); |
b481de9c | 2263 | |
a96a27f9 | 2264 | /* don't commit rxon if rf-kill is on*/ |
fde3571f MA |
2265 | if (!iwl3945_is_ready_rf(priv)) |
2266 | return -EAGAIN; | |
2267 | ||
2268 | cancel_delayed_work(&priv->scan_check); | |
2269 | if (iwl3945_scan_cancel_timeout(priv, 100)) { | |
2270 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
2271 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2272 | return -EAGAIN; | |
2273 | } | |
2274 | ||
bb8c093b | 2275 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
2276 | |
2277 | return 0; | |
2278 | } | |
2279 | ||
bb8c093b | 2280 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv *priv, |
e039fa4a | 2281 | struct ieee80211_tx_info *info, |
bb8c093b | 2282 | struct iwl3945_cmd *cmd, |
b481de9c ZY |
2283 | struct sk_buff *skb_frag, |
2284 | int last_frag) | |
2285 | { | |
1c014420 | 2286 | struct iwl3945_hw_key *keyinfo = |
e039fa4a | 2287 | &priv->stations[info->control.hw_key->hw_key_idx].keyinfo; |
b481de9c ZY |
2288 | |
2289 | switch (keyinfo->alg) { | |
2290 | case ALG_CCMP: | |
2291 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM; | |
2292 | memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen); | |
a96a27f9 | 2293 | IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n"); |
b481de9c ZY |
2294 | break; |
2295 | ||
2296 | case ALG_TKIP: | |
2297 | #if 0 | |
2298 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP; | |
2299 | ||
2300 | if (last_frag) | |
2301 | memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8, | |
2302 | 8); | |
2303 | else | |
2304 | memset(cmd->cmd.tx.tkip_mic.byte, 0, 8); | |
2305 | #endif | |
2306 | break; | |
2307 | ||
2308 | case ALG_WEP: | |
2309 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP | | |
e039fa4a | 2310 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
b481de9c ZY |
2311 | |
2312 | if (keyinfo->keylen == 13) | |
2313 | cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128; | |
2314 | ||
2315 | memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen); | |
2316 | ||
2317 | IWL_DEBUG_TX("Configuring packet for WEP encryption " | |
e039fa4a | 2318 | "with key %d\n", info->control.hw_key->hw_key_idx); |
b481de9c ZY |
2319 | break; |
2320 | ||
b481de9c ZY |
2321 | default: |
2322 | printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg); | |
2323 | break; | |
2324 | } | |
2325 | } | |
2326 | ||
2327 | /* | |
2328 | * handle build REPLY_TX command notification. | |
2329 | */ | |
bb8c093b CH |
2330 | static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, |
2331 | struct iwl3945_cmd *cmd, | |
e039fa4a | 2332 | struct ieee80211_tx_info *info, |
b481de9c ZY |
2333 | struct ieee80211_hdr *hdr, |
2334 | int is_unicast, u8 std_id) | |
2335 | { | |
fd7c8a40 | 2336 | __le16 fc = hdr->frame_control; |
b481de9c | 2337 | __le32 tx_flags = cmd->cmd.tx.tx_flags; |
e6a9854b | 2338 | u8 rc_flags = info->control.rates[0].flags; |
b481de9c ZY |
2339 | |
2340 | cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
e039fa4a | 2341 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
b481de9c | 2342 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
fd7c8a40 | 2343 | if (ieee80211_is_mgmt(fc)) |
b481de9c | 2344 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
fd7c8a40 | 2345 | if (ieee80211_is_probe_resp(fc) && |
b481de9c ZY |
2346 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
2347 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
2348 | } else { | |
2349 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
2350 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
2351 | } | |
2352 | ||
2353 | cmd->cmd.tx.sta_id = std_id; | |
8b7b1e05 | 2354 | if (ieee80211_has_morefrags(fc)) |
b481de9c ZY |
2355 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
2356 | ||
fd7c8a40 HH |
2357 | if (ieee80211_is_data_qos(fc)) { |
2358 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
54dbb525 | 2359 | cmd->cmd.tx.tid_tspec = qc[0] & 0xf; |
b481de9c | 2360 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2361 | } else { |
b481de9c | 2362 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2363 | } |
b481de9c | 2364 | |
e6a9854b | 2365 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
b481de9c ZY |
2366 | tx_flags |= TX_CMD_FLG_RTS_MSK; |
2367 | tx_flags &= ~TX_CMD_FLG_CTS_MSK; | |
e6a9854b | 2368 | } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
b481de9c ZY |
2369 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; |
2370 | tx_flags |= TX_CMD_FLG_CTS_MSK; | |
2371 | } | |
2372 | ||
2373 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
2374 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
2375 | ||
2376 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
fd7c8a40 HH |
2377 | if (ieee80211_is_mgmt(fc)) { |
2378 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
bc434dd2 | 2379 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 2380 | else |
bc434dd2 | 2381 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2); |
ab53d8af | 2382 | } else { |
b481de9c | 2383 | cmd->cmd.tx.timeout.pm_frame_timeout = 0; |
ab53d8af MA |
2384 | #ifdef CONFIG_IWL3945_LEDS |
2385 | priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len); | |
2386 | #endif | |
2387 | } | |
b481de9c ZY |
2388 | |
2389 | cmd->cmd.tx.driver_txop = 0; | |
2390 | cmd->cmd.tx.tx_flags = tx_flags; | |
2391 | cmd->cmd.tx.next_frame_len = 0; | |
2392 | } | |
2393 | ||
6440adb5 CB |
2394 | /** |
2395 | * iwl3945_get_sta_id - Find station's index within station table | |
2396 | */ | |
bb8c093b | 2397 | static int iwl3945_get_sta_id(struct iwl3945_priv *priv, struct ieee80211_hdr *hdr) |
b481de9c ZY |
2398 | { |
2399 | int sta_id; | |
2400 | u16 fc = le16_to_cpu(hdr->frame_control); | |
2401 | ||
6440adb5 | 2402 | /* If this frame is broadcast or management, use broadcast station id */ |
b481de9c ZY |
2403 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
2404 | is_multicast_ether_addr(hdr->addr1)) | |
2405 | return priv->hw_setting.bcast_sta_id; | |
2406 | ||
2407 | switch (priv->iw_mode) { | |
2408 | ||
6440adb5 CB |
2409 | /* If we are a client station in a BSS network, use the special |
2410 | * AP station entry (that's the only station we communicate with) */ | |
05c914fe | 2411 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2412 | return IWL_AP_ID; |
2413 | ||
2414 | /* If we are an AP, then find the station, or use BCAST */ | |
05c914fe | 2415 | case NL80211_IFTYPE_AP: |
bb8c093b | 2416 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2417 | if (sta_id != IWL_INVALID_STATION) |
2418 | return sta_id; | |
2419 | return priv->hw_setting.bcast_sta_id; | |
2420 | ||
6440adb5 CB |
2421 | /* If this frame is going out to an IBSS network, find the station, |
2422 | * or create a new station table entry */ | |
05c914fe | 2423 | case NL80211_IFTYPE_ADHOC: { |
6440adb5 | 2424 | /* Create new station table entry */ |
bb8c093b | 2425 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2426 | if (sta_id != IWL_INVALID_STATION) |
2427 | return sta_id; | |
2428 | ||
bb8c093b | 2429 | sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC); |
b481de9c ZY |
2430 | |
2431 | if (sta_id != IWL_INVALID_STATION) | |
2432 | return sta_id; | |
2433 | ||
e174961c | 2434 | IWL_DEBUG_DROP("Station %pM not in station map. " |
b481de9c | 2435 | "Defaulting to broadcast...\n", |
e174961c | 2436 | hdr->addr1); |
bb8c093b | 2437 | iwl3945_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
b481de9c | 2438 | return priv->hw_setting.bcast_sta_id; |
0795af57 | 2439 | } |
914233d6 SG |
2440 | /* If we are in monitor mode, use BCAST. This is required for |
2441 | * packet injection. */ | |
05c914fe | 2442 | case NL80211_IFTYPE_MONITOR: |
914233d6 SG |
2443 | return priv->hw_setting.bcast_sta_id; |
2444 | ||
b481de9c | 2445 | default: |
6f147926 | 2446 | IWL_WARNING("Unknown mode of operation: %d\n", priv->iw_mode); |
b481de9c ZY |
2447 | return priv->hw_setting.bcast_sta_id; |
2448 | } | |
2449 | } | |
2450 | ||
2451 | /* | |
2452 | * start REPLY_TX command process | |
2453 | */ | |
e039fa4a | 2454 | static int iwl3945_tx_skb(struct iwl3945_priv *priv, struct sk_buff *skb) |
b481de9c ZY |
2455 | { |
2456 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
e039fa4a | 2457 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bb8c093b | 2458 | struct iwl3945_tfd_frame *tfd; |
b481de9c | 2459 | u32 *control_flags; |
e2530083 | 2460 | int txq_id = skb_get_queue_mapping(skb); |
bb8c093b CH |
2461 | struct iwl3945_tx_queue *txq = NULL; |
2462 | struct iwl3945_queue *q = NULL; | |
b481de9c ZY |
2463 | dma_addr_t phys_addr; |
2464 | dma_addr_t txcmd_phys; | |
bb8c093b | 2465 | struct iwl3945_cmd *out_cmd = NULL; |
54dbb525 TW |
2466 | u16 len, idx, len_org, hdr_len; |
2467 | u8 id; | |
2468 | u8 unicast; | |
b481de9c | 2469 | u8 sta_id; |
54dbb525 | 2470 | u8 tid = 0; |
b481de9c | 2471 | u16 seq_number = 0; |
fd7c8a40 | 2472 | __le16 fc; |
b481de9c | 2473 | u8 wait_write_ptr = 0; |
54dbb525 | 2474 | u8 *qc = NULL; |
b481de9c ZY |
2475 | unsigned long flags; |
2476 | int rc; | |
2477 | ||
2478 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2479 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
2480 | IWL_DEBUG_DROP("Dropping - RF KILL\n"); |
2481 | goto drop_unlock; | |
2482 | } | |
2483 | ||
e039fa4a | 2484 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
b481de9c ZY |
2485 | IWL_ERROR("ERROR: No TX rate available.\n"); |
2486 | goto drop_unlock; | |
2487 | } | |
2488 | ||
2489 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
2490 | id = 0; | |
2491 | ||
fd7c8a40 | 2492 | fc = hdr->frame_control; |
b481de9c | 2493 | |
c8b0e6e1 | 2494 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
2495 | if (ieee80211_is_auth(fc)) |
2496 | IWL_DEBUG_TX("Sending AUTH frame\n"); | |
fd7c8a40 | 2497 | else if (ieee80211_is_assoc_req(fc)) |
b481de9c | 2498 | IWL_DEBUG_TX("Sending ASSOC frame\n"); |
fd7c8a40 | 2499 | else if (ieee80211_is_reassoc_req(fc)) |
b481de9c ZY |
2500 | IWL_DEBUG_TX("Sending REASSOC frame\n"); |
2501 | #endif | |
2502 | ||
7878a5a4 | 2503 | /* drop all data frame if we are not associated */ |
914233d6 | 2504 | if (ieee80211_is_data(fc) && |
05c914fe | 2505 | (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */ |
914233d6 | 2506 | (!iwl3945_is_associated(priv) || |
05c914fe | 2507 | ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) { |
bb8c093b | 2508 | IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n"); |
b481de9c ZY |
2509 | goto drop_unlock; |
2510 | } | |
2511 | ||
2512 | spin_unlock_irqrestore(&priv->lock, flags); | |
2513 | ||
7294ec95 | 2514 | hdr_len = ieee80211_hdrlen(fc); |
6440adb5 CB |
2515 | |
2516 | /* Find (or create) index into station table for destination station */ | |
bb8c093b | 2517 | sta_id = iwl3945_get_sta_id(priv, hdr); |
b481de9c | 2518 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
2519 | IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n", |
2520 | hdr->addr1); | |
b481de9c ZY |
2521 | goto drop; |
2522 | } | |
2523 | ||
2524 | IWL_DEBUG_RATE("station Id %d\n", sta_id); | |
2525 | ||
fd7c8a40 HH |
2526 | if (ieee80211_is_data_qos(fc)) { |
2527 | qc = ieee80211_get_qos_ctl(hdr); | |
7294ec95 | 2528 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
b481de9c ZY |
2529 | seq_number = priv->stations[sta_id].tid[tid].seq_number & |
2530 | IEEE80211_SCTL_SEQ; | |
2531 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
2532 | (hdr->seq_ctrl & | |
2533 | __constant_cpu_to_le16(IEEE80211_SCTL_FRAG)); | |
2534 | seq_number += 0x10; | |
2535 | } | |
6440adb5 CB |
2536 | |
2537 | /* Descriptor for chosen Tx queue */ | |
b481de9c ZY |
2538 | txq = &priv->txq[txq_id]; |
2539 | q = &txq->q; | |
2540 | ||
2541 | spin_lock_irqsave(&priv->lock, flags); | |
2542 | ||
6440adb5 | 2543 | /* Set up first empty TFD within this queue's circular TFD buffer */ |
fc4b6853 | 2544 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
2545 | memset(tfd, 0, sizeof(*tfd)); |
2546 | control_flags = (u32 *) tfd; | |
fc4b6853 | 2547 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 2548 | |
6440adb5 | 2549 | /* Set up driver data for this TFD */ |
bb8c093b | 2550 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl3945_tx_info)); |
fc4b6853 | 2551 | txq->txb[q->write_ptr].skb[0] = skb; |
6440adb5 CB |
2552 | |
2553 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
b481de9c ZY |
2554 | out_cmd = &txq->cmd[idx]; |
2555 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); | |
2556 | memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx)); | |
6440adb5 CB |
2557 | |
2558 | /* | |
2559 | * Set up the Tx-command (not MAC!) header. | |
2560 | * Store the chosen Tx queue and TFD index within the sequence field; | |
2561 | * after Tx, uCode's Tx response will return this value so driver can | |
2562 | * locate the frame within the tx queue and do post-tx processing. | |
2563 | */ | |
b481de9c ZY |
2564 | out_cmd->hdr.cmd = REPLY_TX; |
2565 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 2566 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 CB |
2567 | |
2568 | /* Copy MAC header from skb into command buffer */ | |
b481de9c ZY |
2569 | memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len); |
2570 | ||
6440adb5 CB |
2571 | /* |
2572 | * Use the first empty entry in this queue's command buffer array | |
2573 | * to contain the Tx command and MAC header concatenated together | |
2574 | * (payload data will be in another buffer). | |
2575 | * Size of this varies, due to varying MAC header length. | |
2576 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
2577 | * of the MAC header (device reads on dword boundaries). | |
2578 | * We'll tell device about this padding later. | |
2579 | */ | |
b481de9c | 2580 | len = priv->hw_setting.tx_cmd_len + |
bb8c093b | 2581 | sizeof(struct iwl3945_cmd_header) + hdr_len; |
b481de9c ZY |
2582 | |
2583 | len_org = len; | |
2584 | len = (len + 3) & ~3; | |
2585 | ||
2586 | if (len_org != len) | |
2587 | len_org = 1; | |
2588 | else | |
2589 | len_org = 0; | |
2590 | ||
6440adb5 CB |
2591 | /* Physical address of this Tx command's header (not MAC header!), |
2592 | * within command buffer array. */ | |
bb8c093b CH |
2593 | txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl3945_cmd) * idx + |
2594 | offsetof(struct iwl3945_cmd, hdr); | |
b481de9c | 2595 | |
6440adb5 CB |
2596 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
2597 | * first entry */ | |
bb8c093b | 2598 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len); |
b481de9c | 2599 | |
d0f09804 | 2600 | if (info->control.hw_key) |
e039fa4a | 2601 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0); |
b481de9c | 2602 | |
6440adb5 CB |
2603 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
2604 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
2605 | len = skb->len - hdr_len; |
2606 | if (len) { | |
2607 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
2608 | len, PCI_DMA_TODEVICE); | |
bb8c093b | 2609 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len); |
b481de9c ZY |
2610 | } |
2611 | ||
b481de9c | 2612 | if (!len) |
6440adb5 | 2613 | /* If there is no payload, then we use only one Tx buffer */ |
b481de9c ZY |
2614 | *control_flags = TFD_CTL_COUNT_SET(1); |
2615 | else | |
6440adb5 CB |
2616 | /* Else use 2 buffers. |
2617 | * Tell 3945 about any padding after MAC header */ | |
b481de9c ZY |
2618 | *control_flags = TFD_CTL_COUNT_SET(2) | |
2619 | TFD_CTL_PAD_SET(U32_PAD(len)); | |
2620 | ||
6440adb5 | 2621 | /* Total # bytes to be transmitted */ |
b481de9c ZY |
2622 | len = (u16)skb->len; |
2623 | out_cmd->cmd.tx.len = cpu_to_le16(len); | |
2624 | ||
2625 | /* TODO need this for burst mode later on */ | |
e039fa4a | 2626 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, unicast, sta_id); |
b481de9c ZY |
2627 | |
2628 | /* set is_hcca to 0; it probably will never be implemented */ | |
e039fa4a | 2629 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); |
b481de9c ZY |
2630 | |
2631 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; | |
2632 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
2633 | ||
8b7b1e05 | 2634 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
b481de9c | 2635 | txq->need_update = 1; |
3ac7f146 | 2636 | if (qc) |
b481de9c | 2637 | priv->stations[sta_id].tid[tid].seq_number = seq_number; |
b481de9c ZY |
2638 | } else { |
2639 | wait_write_ptr = 1; | |
2640 | txq->need_update = 0; | |
2641 | } | |
2642 | ||
bb8c093b | 2643 | iwl3945_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload, |
b481de9c ZY |
2644 | sizeof(out_cmd->cmd.tx)); |
2645 | ||
bb8c093b | 2646 | iwl3945_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr, |
7294ec95 | 2647 | ieee80211_hdrlen(fc)); |
b481de9c | 2648 | |
6440adb5 | 2649 | /* Tell device the write index *just past* this latest filled TFD */ |
c54b679d | 2650 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
bb8c093b | 2651 | rc = iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2652 | spin_unlock_irqrestore(&priv->lock, flags); |
2653 | ||
2654 | if (rc) | |
2655 | return rc; | |
2656 | ||
bb8c093b | 2657 | if ((iwl3945_queue_space(q) < q->high_mark) |
b481de9c ZY |
2658 | && priv->mac80211_registered) { |
2659 | if (wait_write_ptr) { | |
2660 | spin_lock_irqsave(&priv->lock, flags); | |
2661 | txq->need_update = 1; | |
bb8c093b | 2662 | iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2663 | spin_unlock_irqrestore(&priv->lock, flags); |
2664 | } | |
2665 | ||
e2530083 | 2666 | ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb)); |
b481de9c ZY |
2667 | } |
2668 | ||
2669 | return 0; | |
2670 | ||
2671 | drop_unlock: | |
2672 | spin_unlock_irqrestore(&priv->lock, flags); | |
2673 | drop: | |
2674 | return -1; | |
2675 | } | |
2676 | ||
bb8c093b | 2677 | static void iwl3945_set_rate(struct iwl3945_priv *priv) |
b481de9c | 2678 | { |
8318d78a | 2679 | const struct ieee80211_supported_band *sband = NULL; |
b481de9c ZY |
2680 | struct ieee80211_rate *rate; |
2681 | int i; | |
2682 | ||
8318d78a JB |
2683 | sband = iwl3945_get_band(priv, priv->band); |
2684 | if (!sband) { | |
c4ba9621 SA |
2685 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); |
2686 | return; | |
2687 | } | |
b481de9c ZY |
2688 | |
2689 | priv->active_rate = 0; | |
2690 | priv->active_rate_basic = 0; | |
2691 | ||
8318d78a JB |
2692 | IWL_DEBUG_RATE("Setting rates for %s GHz\n", |
2693 | sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5"); | |
2694 | ||
2695 | for (i = 0; i < sband->n_bitrates; i++) { | |
2696 | rate = &sband->bitrates[i]; | |
2697 | if ((rate->hw_value < IWL_RATE_COUNT) && | |
2698 | !(rate->flags & IEEE80211_CHAN_DISABLED)) { | |
2699 | IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n", | |
2700 | rate->hw_value, iwl3945_rates[rate->hw_value].plcp); | |
2701 | priv->active_rate |= (1 << rate->hw_value); | |
2702 | } | |
b481de9c ZY |
2703 | } |
2704 | ||
2705 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
2706 | priv->active_rate, priv->active_rate_basic); | |
2707 | ||
2708 | /* | |
2709 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
2710 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
2711 | * OFDM | |
2712 | */ | |
2713 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
2714 | priv->staging_rxon.cck_basic_rates = | |
2715 | ((priv->active_rate_basic & | |
2716 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
2717 | else | |
2718 | priv->staging_rxon.cck_basic_rates = | |
2719 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2720 | ||
2721 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
2722 | priv->staging_rxon.ofdm_basic_rates = | |
2723 | ((priv->active_rate_basic & | |
2724 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
2725 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
2726 | else | |
2727 | priv->staging_rxon.ofdm_basic_rates = | |
2728 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2729 | } | |
2730 | ||
bb8c093b | 2731 | static void iwl3945_radio_kill_sw(struct iwl3945_priv *priv, int disable_radio) |
b481de9c ZY |
2732 | { |
2733 | unsigned long flags; | |
2734 | ||
2735 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
2736 | return; | |
2737 | ||
2738 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
2739 | disable_radio ? "OFF" : "ON"); | |
2740 | ||
2741 | if (disable_radio) { | |
bb8c093b | 2742 | iwl3945_scan_cancel(priv); |
b481de9c | 2743 | /* FIXME: This is a workaround for AP */ |
05c914fe | 2744 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
b481de9c | 2745 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 2746 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
2747 | CSR_UCODE_SW_BIT_RFKILL); |
2748 | spin_unlock_irqrestore(&priv->lock, flags); | |
bb8c093b | 2749 | iwl3945_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0); |
b481de9c ZY |
2750 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
2751 | } | |
2752 | return; | |
2753 | } | |
2754 | ||
2755 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2756 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
2757 | |
2758 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
2759 | spin_unlock_irqrestore(&priv->lock, flags); | |
2760 | ||
2761 | /* wake up ucode */ | |
2762 | msleep(10); | |
2763 | ||
2764 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
2765 | iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
2766 | if (!iwl3945_grab_nic_access(priv)) | |
2767 | iwl3945_release_nic_access(priv); | |
b481de9c ZY |
2768 | spin_unlock_irqrestore(&priv->lock, flags); |
2769 | ||
2770 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
2771 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2772 | "disabled by HW switch\n"); | |
2773 | return; | |
2774 | } | |
2775 | ||
808e72a0 ZY |
2776 | if (priv->is_open) |
2777 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
2778 | return; |
2779 | } | |
2780 | ||
bb8c093b | 2781 | void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb, |
b481de9c ZY |
2782 | u32 decrypt_res, struct ieee80211_rx_status *stats) |
2783 | { | |
2784 | u16 fc = | |
2785 | le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control); | |
2786 | ||
2787 | if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) | |
2788 | return; | |
2789 | ||
2790 | if (!(fc & IEEE80211_FCTL_PROTECTED)) | |
2791 | return; | |
2792 | ||
2793 | IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res); | |
2794 | switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { | |
2795 | case RX_RES_STATUS_SEC_TYPE_TKIP: | |
2796 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2797 | RX_RES_STATUS_BAD_ICV_MIC) | |
2798 | stats->flag |= RX_FLAG_MMIC_ERROR; | |
2799 | case RX_RES_STATUS_SEC_TYPE_WEP: | |
2800 | case RX_RES_STATUS_SEC_TYPE_CCMP: | |
2801 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2802 | RX_RES_STATUS_DECRYPT_OK) { | |
2803 | IWL_DEBUG_RX("hw decrypt successfully!!!\n"); | |
2804 | stats->flag |= RX_FLAG_DECRYPTED; | |
2805 | } | |
2806 | break; | |
2807 | ||
2808 | default: | |
2809 | break; | |
2810 | } | |
2811 | } | |
2812 | ||
c8b0e6e1 | 2813 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
2814 | |
2815 | #include "iwl-spectrum.h" | |
2816 | ||
2817 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
2818 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
2819 | #define TIME_UNIT 1024 | |
2820 | ||
2821 | /* | |
2822 | * extended beacon time format | |
2823 | * time in usec will be changed into a 32-bit value in 8:24 format | |
2824 | * the high 1 byte is the beacon counts | |
2825 | * the lower 3 bytes is the time in usec within one beacon interval | |
2826 | */ | |
2827 | ||
bb8c093b | 2828 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
2829 | { |
2830 | u32 quot; | |
2831 | u32 rem; | |
2832 | u32 interval = beacon_interval * 1024; | |
2833 | ||
2834 | if (!interval || !usec) | |
2835 | return 0; | |
2836 | ||
2837 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
2838 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
2839 | ||
2840 | return (quot << 24) + rem; | |
2841 | } | |
2842 | ||
2843 | /* base is usually what we get from ucode with each received frame, | |
2844 | * the same as HW timer counter counting down | |
2845 | */ | |
2846 | ||
bb8c093b | 2847 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
2848 | { |
2849 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
2850 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
2851 | u32 interval = beacon_interval * TIME_UNIT; | |
2852 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
2853 | (addon & BEACON_TIME_MASK_HIGH); | |
2854 | ||
2855 | if (base_low > addon_low) | |
2856 | res += base_low - addon_low; | |
2857 | else if (base_low < addon_low) { | |
2858 | res += interval + base_low - addon_low; | |
2859 | res += (1 << 24); | |
2860 | } else | |
2861 | res += (1 << 24); | |
2862 | ||
2863 | return cpu_to_le32(res); | |
2864 | } | |
2865 | ||
bb8c093b | 2866 | static int iwl3945_get_measurement(struct iwl3945_priv *priv, |
b481de9c ZY |
2867 | struct ieee80211_measurement_params *params, |
2868 | u8 type) | |
2869 | { | |
bb8c093b CH |
2870 | struct iwl3945_spectrum_cmd spectrum; |
2871 | struct iwl3945_rx_packet *res; | |
2872 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
2873 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
2874 | .data = (void *)&spectrum, | |
2875 | .meta.flags = CMD_WANT_SKB, | |
2876 | }; | |
2877 | u32 add_time = le64_to_cpu(params->start_time); | |
2878 | int rc; | |
2879 | int spectrum_resp_status; | |
2880 | int duration = le16_to_cpu(params->duration); | |
2881 | ||
bb8c093b | 2882 | if (iwl3945_is_associated(priv)) |
b481de9c | 2883 | add_time = |
bb8c093b | 2884 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
2885 | le64_to_cpu(params->start_time) - priv->last_tsf, |
2886 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
2887 | ||
2888 | memset(&spectrum, 0, sizeof(spectrum)); | |
2889 | ||
2890 | spectrum.channel_count = cpu_to_le16(1); | |
2891 | spectrum.flags = | |
2892 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
2893 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
2894 | cmd.len = sizeof(spectrum); | |
2895 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
2896 | ||
bb8c093b | 2897 | if (iwl3945_is_associated(priv)) |
b481de9c | 2898 | spectrum.start_time = |
bb8c093b | 2899 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
2900 | add_time, |
2901 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
2902 | else | |
2903 | spectrum.start_time = 0; | |
2904 | ||
2905 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
2906 | spectrum.channels[0].channel = params->channel; | |
2907 | spectrum.channels[0].type = type; | |
2908 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
2909 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
2910 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
2911 | ||
bb8c093b | 2912 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
2913 | if (rc) |
2914 | return rc; | |
2915 | ||
bb8c093b | 2916 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
2917 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
2918 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
2919 | rc = -EIO; | |
2920 | } | |
2921 | ||
2922 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
2923 | switch (spectrum_resp_status) { | |
2924 | case 0: /* Command will be handled */ | |
2925 | if (res->u.spectrum.id != 0xff) { | |
bc434dd2 IS |
2926 | IWL_DEBUG_INFO("Replaced existing measurement: %d\n", |
2927 | res->u.spectrum.id); | |
b481de9c ZY |
2928 | priv->measurement_status &= ~MEASUREMENT_READY; |
2929 | } | |
2930 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
2931 | rc = 0; | |
2932 | break; | |
2933 | ||
2934 | case 1: /* Command will not be handled */ | |
2935 | rc = -EAGAIN; | |
2936 | break; | |
2937 | } | |
2938 | ||
2939 | dev_kfree_skb_any(cmd.meta.u.skb); | |
2940 | ||
2941 | return rc; | |
2942 | } | |
2943 | #endif | |
2944 | ||
bb8c093b CH |
2945 | static void iwl3945_rx_reply_alive(struct iwl3945_priv *priv, |
2946 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2947 | { |
bb8c093b CH |
2948 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
2949 | struct iwl3945_alive_resp *palive; | |
b481de9c ZY |
2950 | struct delayed_work *pwork; |
2951 | ||
2952 | palive = &pkt->u.alive_frame; | |
2953 | ||
2954 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
2955 | "0x%01X 0x%01X\n", | |
2956 | palive->is_valid, palive->ver_type, | |
2957 | palive->ver_subtype); | |
2958 | ||
2959 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
2960 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
2961 | memcpy(&priv->card_alive_init, | |
2962 | &pkt->u.alive_frame, | |
bb8c093b | 2963 | sizeof(struct iwl3945_init_alive_resp)); |
b481de9c ZY |
2964 | pwork = &priv->init_alive_start; |
2965 | } else { | |
2966 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
2967 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
bb8c093b | 2968 | sizeof(struct iwl3945_alive_resp)); |
b481de9c | 2969 | pwork = &priv->alive_start; |
bb8c093b | 2970 | iwl3945_disable_events(priv); |
b481de9c ZY |
2971 | } |
2972 | ||
2973 | /* We delay the ALIVE response by 5ms to | |
2974 | * give the HW RF Kill time to activate... */ | |
2975 | if (palive->is_valid == UCODE_VALID_OK) | |
2976 | queue_delayed_work(priv->workqueue, pwork, | |
2977 | msecs_to_jiffies(5)); | |
2978 | else | |
2979 | IWL_WARNING("uCode did not respond OK.\n"); | |
2980 | } | |
2981 | ||
bb8c093b CH |
2982 | static void iwl3945_rx_reply_add_sta(struct iwl3945_priv *priv, |
2983 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2984 | { |
bb8c093b | 2985 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
2986 | |
2987 | IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); | |
2988 | return; | |
2989 | } | |
2990 | ||
bb8c093b CH |
2991 | static void iwl3945_rx_reply_error(struct iwl3945_priv *priv, |
2992 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2993 | { |
bb8c093b | 2994 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
2995 | |
2996 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
2997 | "seq 0x%04X ser 0x%08X\n", | |
2998 | le32_to_cpu(pkt->u.err_resp.error_type), | |
2999 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
3000 | pkt->u.err_resp.cmd_id, | |
3001 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
3002 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
3003 | } | |
3004 | ||
3005 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
3006 | ||
bb8c093b | 3007 | static void iwl3945_rx_csa(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb) |
b481de9c | 3008 | { |
bb8c093b CH |
3009 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3010 | struct iwl3945_rxon_cmd *rxon = (void *)&priv->active_rxon; | |
3011 | struct iwl3945_csa_notification *csa = &(pkt->u.csa_notif); | |
b481de9c ZY |
3012 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
3013 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
3014 | rxon->channel = csa->channel; | |
3015 | priv->staging_rxon.channel = csa->channel; | |
3016 | } | |
3017 | ||
bb8c093b CH |
3018 | static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv *priv, |
3019 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3020 | { |
c8b0e6e1 | 3021 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
bb8c093b CH |
3022 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3023 | struct iwl3945_spectrum_notification *report = &(pkt->u.spectrum_notif); | |
b481de9c ZY |
3024 | |
3025 | if (!report->state) { | |
3026 | IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO, | |
3027 | "Spectrum Measure Notification: Start\n"); | |
3028 | return; | |
3029 | } | |
3030 | ||
3031 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
3032 | priv->measurement_status |= MEASUREMENT_READY; | |
3033 | #endif | |
3034 | } | |
3035 | ||
bb8c093b CH |
3036 | static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv *priv, |
3037 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3038 | { |
c8b0e6e1 | 3039 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3040 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3041 | struct iwl3945_sleep_notification *sleep = &(pkt->u.sleep_notif); | |
b481de9c ZY |
3042 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
3043 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
3044 | #endif | |
3045 | } | |
3046 | ||
bb8c093b CH |
3047 | static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv *priv, |
3048 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3049 | { |
bb8c093b | 3050 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3051 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
3052 | "notification for %s:\n", | |
3053 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bb8c093b | 3054 | iwl3945_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
3055 | } |
3056 | ||
bb8c093b | 3057 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 3058 | { |
bb8c093b CH |
3059 | struct iwl3945_priv *priv = |
3060 | container_of(work, struct iwl3945_priv, beacon_update); | |
b481de9c ZY |
3061 | struct sk_buff *beacon; |
3062 | ||
3063 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 3064 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
3065 | |
3066 | if (!beacon) { | |
3067 | IWL_ERROR("update beacon failed\n"); | |
3068 | return; | |
3069 | } | |
3070 | ||
3071 | mutex_lock(&priv->mutex); | |
3072 | /* new beacon skb is allocated every time; dispose previous.*/ | |
3073 | if (priv->ibss_beacon) | |
3074 | dev_kfree_skb(priv->ibss_beacon); | |
3075 | ||
3076 | priv->ibss_beacon = beacon; | |
3077 | mutex_unlock(&priv->mutex); | |
3078 | ||
bb8c093b | 3079 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3080 | } |
3081 | ||
bb8c093b CH |
3082 | static void iwl3945_rx_beacon_notif(struct iwl3945_priv *priv, |
3083 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3084 | { |
c8b0e6e1 | 3085 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3086 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3087 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); | |
b481de9c ZY |
3088 | u8 rate = beacon->beacon_notify_hdr.rate; |
3089 | ||
3090 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
3091 | "tsf %d %d rate %d\n", | |
3092 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
3093 | beacon->beacon_notify_hdr.failure_frame, | |
3094 | le32_to_cpu(beacon->ibss_mgr_status), | |
3095 | le32_to_cpu(beacon->high_tsf), | |
3096 | le32_to_cpu(beacon->low_tsf), rate); | |
3097 | #endif | |
3098 | ||
05c914fe | 3099 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
3100 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
3101 | queue_work(priv->workqueue, &priv->beacon_update); | |
3102 | } | |
3103 | ||
3104 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
bb8c093b CH |
3105 | static void iwl3945_rx_reply_scan(struct iwl3945_priv *priv, |
3106 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3107 | { |
c8b0e6e1 | 3108 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3109 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3110 | struct iwl3945_scanreq_notification *notif = | |
3111 | (struct iwl3945_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
3112 | |
3113 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
3114 | #endif | |
3115 | } | |
3116 | ||
3117 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
bb8c093b CH |
3118 | static void iwl3945_rx_scan_start_notif(struct iwl3945_priv *priv, |
3119 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3120 | { |
bb8c093b CH |
3121 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3122 | struct iwl3945_scanstart_notification *notif = | |
3123 | (struct iwl3945_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
3124 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
3125 | IWL_DEBUG_SCAN("Scan start: " | |
3126 | "%d [802.11%s] " | |
3127 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
3128 | notif->channel, | |
3129 | notif->band ? "bg" : "a", | |
3130 | notif->tsf_high, | |
3131 | notif->tsf_low, notif->status, notif->beacon_timer); | |
3132 | } | |
3133 | ||
3134 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
bb8c093b CH |
3135 | static void iwl3945_rx_scan_results_notif(struct iwl3945_priv *priv, |
3136 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3137 | { |
bb8c093b CH |
3138 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3139 | struct iwl3945_scanresults_notification *notif = | |
3140 | (struct iwl3945_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
3141 | |
3142 | IWL_DEBUG_SCAN("Scan ch.res: " | |
3143 | "%d [802.11%s] " | |
3144 | "(TSF: 0x%08X:%08X) - %d " | |
3145 | "elapsed=%lu usec (%dms since last)\n", | |
3146 | notif->channel, | |
3147 | notif->band ? "bg" : "a", | |
3148 | le32_to_cpu(notif->tsf_high), | |
3149 | le32_to_cpu(notif->tsf_low), | |
3150 | le32_to_cpu(notif->statistics[0]), | |
3151 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
3152 | jiffies_to_msecs(elapsed_jiffies | |
3153 | (priv->last_scan_jiffies, jiffies))); | |
3154 | ||
3155 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3156 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3157 | } |
3158 | ||
3159 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
bb8c093b CH |
3160 | static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv *priv, |
3161 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3162 | { |
bb8c093b CH |
3163 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3164 | struct iwl3945_scancomplete_notification *scan_notif = (void *)pkt->u.raw; | |
b481de9c ZY |
3165 | |
3166 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
3167 | scan_notif->scanned_channels, | |
3168 | scan_notif->tsf_low, | |
3169 | scan_notif->tsf_high, scan_notif->status); | |
3170 | ||
3171 | /* The HW is no longer scanning */ | |
3172 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
3173 | ||
3174 | /* The scan completion notification came in, so kill that timer... */ | |
3175 | cancel_delayed_work(&priv->scan_check); | |
3176 | ||
3177 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
66b5004d RR |
3178 | (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ? |
3179 | "2.4" : "5.2", | |
b481de9c ZY |
3180 | jiffies_to_msecs(elapsed_jiffies |
3181 | (priv->scan_pass_start, jiffies))); | |
3182 | ||
66b5004d RR |
3183 | /* Remove this scanned band from the list of pending |
3184 | * bands to scan, band G precedes A in order of scanning | |
3185 | * as seen in iwl3945_bg_request_scan */ | |
3186 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) | |
3187 | priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ); | |
3188 | else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) | |
3189 | priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
3190 | |
3191 | /* If a request to abort was given, or the scan did not succeed | |
3192 | * then we reset the scan state machine and terminate, | |
3193 | * re-queuing another scan if one has been requested */ | |
3194 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3195 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
3196 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
3197 | } else { | |
3198 | /* If there are more bands on this scan pass reschedule */ | |
3199 | if (priv->scan_bands > 0) | |
3200 | goto reschedule; | |
3201 | } | |
3202 | ||
3203 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3204 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3205 | IWL_DEBUG_INFO("Setting scan to off\n"); |
3206 | ||
3207 | clear_bit(STATUS_SCANNING, &priv->status); | |
3208 | ||
3209 | IWL_DEBUG_INFO("Scan took %dms\n", | |
3210 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
3211 | ||
3212 | queue_work(priv->workqueue, &priv->scan_completed); | |
3213 | ||
3214 | return; | |
3215 | ||
3216 | reschedule: | |
3217 | priv->scan_pass_start = jiffies; | |
3218 | queue_work(priv->workqueue, &priv->request_scan); | |
3219 | } | |
3220 | ||
3221 | /* Handle notification from uCode that card's power state is changing | |
3222 | * due to software, hardware, or critical temperature RFKILL */ | |
bb8c093b CH |
3223 | static void iwl3945_rx_card_state_notif(struct iwl3945_priv *priv, |
3224 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3225 | { |
bb8c093b | 3226 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3227 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
3228 | unsigned long status = priv->status; | |
3229 | ||
3230 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
3231 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
3232 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
3233 | ||
bb8c093b | 3234 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
3235 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3236 | ||
3237 | if (flags & HW_CARD_DISABLED) | |
3238 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3239 | else | |
3240 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3241 | ||
3242 | ||
3243 | if (flags & SW_CARD_DISABLED) | |
3244 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
3245 | else | |
3246 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
3247 | ||
bb8c093b | 3248 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
3249 | |
3250 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
3251 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
3252 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
3253 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
3254 | queue_work(priv->workqueue, &priv->rf_kill); | |
3255 | else | |
3256 | wake_up_interruptible(&priv->wait_command_queue); | |
3257 | } | |
3258 | ||
3259 | /** | |
bb8c093b | 3260 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
3261 | * |
3262 | * Setup the RX handlers for each of the reply types sent from the uCode | |
3263 | * to the host. | |
3264 | * | |
3265 | * This function chains into the hardware specific files for them to setup | |
3266 | * any hardware specific handlers as well. | |
3267 | */ | |
bb8c093b | 3268 | static void iwl3945_setup_rx_handlers(struct iwl3945_priv *priv) |
b481de9c | 3269 | { |
bb8c093b CH |
3270 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
3271 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
3272 | priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error; | |
3273 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa; | |
b481de9c | 3274 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
3275 | iwl3945_rx_spectrum_measure_notif; |
3276 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif; | |
b481de9c | 3277 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
3278 | iwl3945_rx_pm_debug_statistics_notif; |
3279 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; | |
b481de9c | 3280 | |
9fbab516 BC |
3281 | /* |
3282 | * The same handler is used for both the REPLY to a discrete | |
3283 | * statistics request from the host as well as for the periodic | |
3284 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 3285 | */ |
bb8c093b CH |
3286 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
3287 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 3288 | |
bb8c093b CH |
3289 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan; |
3290 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif; | |
b481de9c | 3291 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 3292 | iwl3945_rx_scan_results_notif; |
b481de9c | 3293 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b CH |
3294 | iwl3945_rx_scan_complete_notif; |
3295 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; | |
b481de9c | 3296 | |
9fbab516 | 3297 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 3298 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
3299 | } |
3300 | ||
91c066f2 TW |
3301 | /** |
3302 | * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries | |
3303 | * When FW advances 'R' index, all entries between old and new 'R' index | |
3304 | * need to be reclaimed. | |
3305 | */ | |
3306 | static void iwl3945_cmd_queue_reclaim(struct iwl3945_priv *priv, | |
3307 | int txq_id, int index) | |
3308 | { | |
3309 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; | |
3310 | struct iwl3945_queue *q = &txq->q; | |
3311 | int nfreed = 0; | |
3312 | ||
3313 | if ((index >= q->n_bd) || (iwl3945_x2_queue_used(q, index) == 0)) { | |
3314 | IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " | |
3315 | "is out of range [0-%d] %d %d.\n", txq_id, | |
3316 | index, q->n_bd, q->write_ptr, q->read_ptr); | |
3317 | return; | |
3318 | } | |
3319 | ||
3320 | for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; | |
3321 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { | |
3322 | if (nfreed > 1) { | |
3323 | IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, | |
3324 | q->write_ptr, q->read_ptr); | |
3325 | queue_work(priv->workqueue, &priv->restart); | |
3326 | break; | |
3327 | } | |
3328 | nfreed++; | |
3329 | } | |
3330 | } | |
3331 | ||
3332 | ||
b481de9c | 3333 | /** |
bb8c093b | 3334 | * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
3335 | * @rxb: Rx buffer to reclaim |
3336 | * | |
3337 | * If an Rx buffer has an async callback associated with it the callback | |
3338 | * will be executed. The attached skb (if present) will only be freed | |
3339 | * if the callback returns 1 | |
3340 | */ | |
bb8c093b CH |
3341 | static void iwl3945_tx_cmd_complete(struct iwl3945_priv *priv, |
3342 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3343 | { |
bb8c093b | 3344 | struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3345 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
3346 | int txq_id = SEQ_TO_QUEUE(sequence); | |
3347 | int index = SEQ_TO_INDEX(sequence); | |
3348 | int huge = sequence & SEQ_HUGE_FRAME; | |
3349 | int cmd_index; | |
bb8c093b | 3350 | struct iwl3945_cmd *cmd; |
b481de9c | 3351 | |
b481de9c ZY |
3352 | BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); |
3353 | ||
3354 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); | |
3355 | cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
3356 | ||
3357 | /* Input error checking is done when commands are added to queue. */ | |
3358 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
3359 | cmd->meta.source->u.skb = rxb->skb; | |
3360 | rxb->skb = NULL; | |
3361 | } else if (cmd->meta.u.callback && | |
3362 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
3363 | rxb->skb = NULL; | |
3364 | ||
91c066f2 | 3365 | iwl3945_cmd_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
3366 | |
3367 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
3368 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
3369 | wake_up_interruptible(&priv->wait_command_queue); | |
3370 | } | |
3371 | } | |
3372 | ||
3373 | /************************** RX-FUNCTIONS ****************************/ | |
3374 | /* | |
3375 | * Rx theory of operation | |
3376 | * | |
3377 | * The host allocates 32 DMA target addresses and passes the host address | |
3378 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
3379 | * 0 to 31 | |
3380 | * | |
3381 | * Rx Queue Indexes | |
3382 | * The host/firmware share two index registers for managing the Rx buffers. | |
3383 | * | |
3384 | * The READ index maps to the first position that the firmware may be writing | |
3385 | * to -- the driver can read up to (but not including) this position and get | |
3386 | * good data. | |
3387 | * The READ index is managed by the firmware once the card is enabled. | |
3388 | * | |
3389 | * The WRITE index maps to the last position the driver has read from -- the | |
3390 | * position preceding WRITE is the last slot the firmware can place a packet. | |
3391 | * | |
3392 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
3393 | * WRITE = READ. | |
3394 | * | |
9fbab516 | 3395 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
3396 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
3397 | * | |
9fbab516 | 3398 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
3399 | * and fire the RX interrupt. The driver can then query the READ index and |
3400 | * process as many packets as possible, moving the WRITE index forward as it | |
3401 | * resets the Rx queue buffers with new memory. | |
3402 | * | |
3403 | * The management in the driver is as follows: | |
3404 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
3405 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 3406 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 3407 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
3408 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
3409 | * 'processed' and 'read' driver indexes as well) | |
3410 | * + A received packet is processed and handed to the kernel network stack, | |
3411 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
3412 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
3413 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
3414 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
3415 | * were enough free buffers and RX_STALLED is set it is cleared. | |
3416 | * | |
3417 | * | |
3418 | * Driver sequence: | |
3419 | * | |
9fbab516 BC |
3420 | * iwl3945_rx_queue_alloc() Allocates rx_free |
3421 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls | |
bb8c093b | 3422 | * iwl3945_rx_queue_restock |
9fbab516 | 3423 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
3424 | * queue, updates firmware pointers, and updates |
3425 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 3426 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
3427 | * |
3428 | * -- enable interrupts -- | |
9fbab516 | 3429 | * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the |
b481de9c ZY |
3430 | * READ INDEX, detaching the SKB from the pool. |
3431 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 3432 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
3433 | * slots. |
3434 | * ... | |
3435 | * | |
3436 | */ | |
3437 | ||
3438 | /** | |
bb8c093b | 3439 | * iwl3945_rx_queue_space - Return number of free slots available in queue. |
b481de9c | 3440 | */ |
bb8c093b | 3441 | static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue *q) |
b481de9c ZY |
3442 | { |
3443 | int s = q->read - q->write; | |
3444 | if (s <= 0) | |
3445 | s += RX_QUEUE_SIZE; | |
3446 | /* keep some buffer to not confuse full and empty queue */ | |
3447 | s -= 2; | |
3448 | if (s < 0) | |
3449 | s = 0; | |
3450 | return s; | |
3451 | } | |
3452 | ||
3453 | /** | |
bb8c093b | 3454 | * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue |
b481de9c | 3455 | */ |
bb8c093b | 3456 | int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv, struct iwl3945_rx_queue *q) |
b481de9c ZY |
3457 | { |
3458 | u32 reg = 0; | |
3459 | int rc = 0; | |
3460 | unsigned long flags; | |
3461 | ||
3462 | spin_lock_irqsave(&q->lock, flags); | |
3463 | ||
3464 | if (q->need_update == 0) | |
3465 | goto exit_unlock; | |
3466 | ||
6440adb5 | 3467 | /* If power-saving is in use, make sure device is awake */ |
b481de9c | 3468 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { |
bb8c093b | 3469 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3470 | |
3471 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
bb8c093b | 3472 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3473 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3474 | goto exit_unlock; | |
3475 | } | |
3476 | ||
bb8c093b | 3477 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3478 | if (rc) |
3479 | goto exit_unlock; | |
3480 | ||
6440adb5 | 3481 | /* Device expects a multiple of 8 */ |
bb8c093b | 3482 | iwl3945_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, |
b481de9c | 3483 | q->write & ~0x7); |
bb8c093b | 3484 | iwl3945_release_nic_access(priv); |
6440adb5 CB |
3485 | |
3486 | /* Else device is assumed to be awake */ | |
b481de9c | 3487 | } else |
6440adb5 | 3488 | /* Device expects a multiple of 8 */ |
bb8c093b | 3489 | iwl3945_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7); |
b481de9c ZY |
3490 | |
3491 | ||
3492 | q->need_update = 0; | |
3493 | ||
3494 | exit_unlock: | |
3495 | spin_unlock_irqrestore(&q->lock, flags); | |
3496 | return rc; | |
3497 | } | |
3498 | ||
3499 | /** | |
9fbab516 | 3500 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 3501 | */ |
bb8c093b | 3502 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv *priv, |
b481de9c ZY |
3503 | dma_addr_t dma_addr) |
3504 | { | |
3505 | return cpu_to_le32((u32)dma_addr); | |
3506 | } | |
3507 | ||
3508 | /** | |
bb8c093b | 3509 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 3510 | * |
9fbab516 | 3511 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 3512 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 3513 | * as we can, pulling from rx_free. |
b481de9c ZY |
3514 | * |
3515 | * This moves the 'write' index forward to catch up with 'processed', and | |
3516 | * also updates the memory address in the firmware to reference the new | |
3517 | * target buffer. | |
3518 | */ | |
bb8c093b | 3519 | static int iwl3945_rx_queue_restock(struct iwl3945_priv *priv) |
b481de9c | 3520 | { |
bb8c093b | 3521 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3522 | struct list_head *element; |
bb8c093b | 3523 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3524 | unsigned long flags; |
3525 | int write, rc; | |
3526 | ||
3527 | spin_lock_irqsave(&rxq->lock, flags); | |
3528 | write = rxq->write & ~0x7; | |
bb8c093b | 3529 | while ((iwl3945_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 3530 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 3531 | element = rxq->rx_free.next; |
bb8c093b | 3532 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
b481de9c | 3533 | list_del(element); |
6440adb5 CB |
3534 | |
3535 | /* Point to Rx buffer via next RBD in circular buffer */ | |
bb8c093b | 3536 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->dma_addr); |
b481de9c ZY |
3537 | rxq->queue[rxq->write] = rxb; |
3538 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
3539 | rxq->free_count--; | |
3540 | } | |
3541 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3542 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
3543 | * refill it */ | |
3544 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
3545 | queue_work(priv->workqueue, &priv->rx_replenish); | |
3546 | ||
3547 | ||
6440adb5 CB |
3548 | /* If we've added more space for the firmware to place data, tell it. |
3549 | * Increment device's write pointer in multiples of 8. */ | |
b481de9c ZY |
3550 | if ((write != (rxq->write & ~0x7)) |
3551 | || (abs(rxq->write - rxq->read) > 7)) { | |
3552 | spin_lock_irqsave(&rxq->lock, flags); | |
3553 | rxq->need_update = 1; | |
3554 | spin_unlock_irqrestore(&rxq->lock, flags); | |
bb8c093b | 3555 | rc = iwl3945_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
3556 | if (rc) |
3557 | return rc; | |
3558 | } | |
3559 | ||
3560 | return 0; | |
3561 | } | |
3562 | ||
3563 | /** | |
bb8c093b | 3564 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
3565 | * |
3566 | * When moving to rx_free an SKB is allocated for the slot. | |
3567 | * | |
bb8c093b | 3568 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 3569 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 3570 | */ |
5c0eef96 | 3571 | static void iwl3945_rx_allocate(struct iwl3945_priv *priv) |
b481de9c | 3572 | { |
bb8c093b | 3573 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3574 | struct list_head *element; |
bb8c093b | 3575 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3576 | unsigned long flags; |
3577 | spin_lock_irqsave(&rxq->lock, flags); | |
3578 | while (!list_empty(&rxq->rx_used)) { | |
3579 | element = rxq->rx_used.next; | |
bb8c093b | 3580 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
6440adb5 CB |
3581 | |
3582 | /* Alloc a new receive buffer */ | |
b481de9c ZY |
3583 | rxb->skb = |
3584 | alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC); | |
3585 | if (!rxb->skb) { | |
3586 | if (net_ratelimit()) | |
3587 | printk(KERN_CRIT DRV_NAME | |
3588 | ": Can not allocate SKB buffers\n"); | |
3589 | /* We don't reschedule replenish work here -- we will | |
3590 | * call the restock method and if it still needs | |
3591 | * more buffers it will schedule replenish */ | |
3592 | break; | |
3593 | } | |
12342c47 ZY |
3594 | |
3595 | /* If radiotap head is required, reserve some headroom here. | |
3596 | * The physical head count is a variable rx_stats->phy_count. | |
3597 | * We reserve 4 bytes here. Plus these extra bytes, the | |
3598 | * headroom of the physical head should be enough for the | |
3599 | * radiotap head that iwl3945 supported. See iwl3945_rt. | |
3600 | */ | |
3601 | skb_reserve(rxb->skb, 4); | |
3602 | ||
b481de9c ZY |
3603 | priv->alloc_rxb_skb++; |
3604 | list_del(element); | |
6440adb5 CB |
3605 | |
3606 | /* Get physical address of RB/SKB */ | |
b481de9c ZY |
3607 | rxb->dma_addr = |
3608 | pci_map_single(priv->pci_dev, rxb->skb->data, | |
3609 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3610 | list_add_tail(&rxb->list, &rxq->rx_free); | |
3611 | rxq->free_count++; | |
3612 | } | |
3613 | spin_unlock_irqrestore(&rxq->lock, flags); | |
5c0eef96 MA |
3614 | } |
3615 | ||
3616 | /* | |
3617 | * this should be called while priv->lock is locked | |
3618 | */ | |
4fd1f841 | 3619 | static void __iwl3945_rx_replenish(void *data) |
5c0eef96 MA |
3620 | { |
3621 | struct iwl3945_priv *priv = data; | |
3622 | ||
3623 | iwl3945_rx_allocate(priv); | |
3624 | iwl3945_rx_queue_restock(priv); | |
3625 | } | |
3626 | ||
3627 | ||
3628 | void iwl3945_rx_replenish(void *data) | |
3629 | { | |
3630 | struct iwl3945_priv *priv = data; | |
3631 | unsigned long flags; | |
3632 | ||
3633 | iwl3945_rx_allocate(priv); | |
b481de9c ZY |
3634 | |
3635 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 3636 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3637 | spin_unlock_irqrestore(&priv->lock, flags); |
3638 | } | |
3639 | ||
3640 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. | |
9fbab516 | 3641 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
b481de9c ZY |
3642 | * This free routine walks the list of POOL entries and if SKB is set to |
3643 | * non NULL it is unmapped and freed | |
3644 | */ | |
bb8c093b | 3645 | static void iwl3945_rx_queue_free(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3646 | { |
3647 | int i; | |
3648 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
3649 | if (rxq->pool[i].skb != NULL) { | |
3650 | pci_unmap_single(priv->pci_dev, | |
3651 | rxq->pool[i].dma_addr, | |
3652 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3653 | dev_kfree_skb(rxq->pool[i].skb); | |
3654 | } | |
3655 | } | |
3656 | ||
3657 | pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, | |
3658 | rxq->dma_addr); | |
3659 | rxq->bd = NULL; | |
3660 | } | |
3661 | ||
bb8c093b | 3662 | int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv) |
b481de9c | 3663 | { |
bb8c093b | 3664 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
3665 | struct pci_dev *dev = priv->pci_dev; |
3666 | int i; | |
3667 | ||
3668 | spin_lock_init(&rxq->lock); | |
3669 | INIT_LIST_HEAD(&rxq->rx_free); | |
3670 | INIT_LIST_HEAD(&rxq->rx_used); | |
6440adb5 CB |
3671 | |
3672 | /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ | |
b481de9c ZY |
3673 | rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr); |
3674 | if (!rxq->bd) | |
3675 | return -ENOMEM; | |
6440adb5 | 3676 | |
b481de9c ZY |
3677 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
3678 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) | |
3679 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
6440adb5 | 3680 | |
b481de9c ZY |
3681 | /* Set us so that we have processed and used all buffers, but have |
3682 | * not restocked the Rx queue with fresh buffers */ | |
3683 | rxq->read = rxq->write = 0; | |
3684 | rxq->free_count = 0; | |
3685 | rxq->need_update = 0; | |
3686 | return 0; | |
3687 | } | |
3688 | ||
bb8c093b | 3689 | void iwl3945_rx_queue_reset(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3690 | { |
3691 | unsigned long flags; | |
3692 | int i; | |
3693 | spin_lock_irqsave(&rxq->lock, flags); | |
3694 | INIT_LIST_HEAD(&rxq->rx_free); | |
3695 | INIT_LIST_HEAD(&rxq->rx_used); | |
3696 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
3697 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
3698 | /* In the reset function, these buffers may have been allocated | |
3699 | * to an SKB, so we need to unmap and free potential storage */ | |
3700 | if (rxq->pool[i].skb != NULL) { | |
3701 | pci_unmap_single(priv->pci_dev, | |
3702 | rxq->pool[i].dma_addr, | |
3703 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3704 | priv->alloc_rxb_skb--; | |
3705 | dev_kfree_skb(rxq->pool[i].skb); | |
3706 | rxq->pool[i].skb = NULL; | |
3707 | } | |
3708 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
3709 | } | |
3710 | ||
3711 | /* Set us so that we have processed and used all buffers, but have | |
3712 | * not restocked the Rx queue with fresh buffers */ | |
3713 | rxq->read = rxq->write = 0; | |
3714 | rxq->free_count = 0; | |
3715 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3716 | } | |
3717 | ||
3718 | /* Convert linear signal-to-noise ratio into dB */ | |
3719 | static u8 ratio2dB[100] = { | |
3720 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
3721 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
3722 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
3723 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
3724 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
3725 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
3726 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
3727 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
3728 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
3729 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
3730 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
3731 | }; | |
3732 | ||
3733 | /* Calculates a relative dB value from a ratio of linear | |
3734 | * (i.e. not dB) signal levels. | |
3735 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 3736 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 3737 | { |
221c80cf AB |
3738 | /* 1000:1 or higher just report as 60 dB */ |
3739 | if (sig_ratio >= 1000) | |
b481de9c ZY |
3740 | return 60; |
3741 | ||
221c80cf | 3742 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 3743 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 3744 | if (sig_ratio >= 100) |
3ac7f146 | 3745 | return 20 + (int)ratio2dB[sig_ratio/10]; |
b481de9c ZY |
3746 | |
3747 | /* We shouldn't see this */ | |
3748 | if (sig_ratio < 1) | |
3749 | return 0; | |
3750 | ||
3751 | /* Use table for ratios 1:1 - 99:1 */ | |
3752 | return (int)ratio2dB[sig_ratio]; | |
3753 | } | |
3754 | ||
3755 | #define PERFECT_RSSI (-20) /* dBm */ | |
3756 | #define WORST_RSSI (-95) /* dBm */ | |
3757 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
3758 | ||
3759 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
3760 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
3761 | * about formulas used below. */ | |
bb8c093b | 3762 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
b481de9c ZY |
3763 | { |
3764 | int sig_qual; | |
3765 | int degradation = PERFECT_RSSI - rssi_dbm; | |
3766 | ||
3767 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
3768 | * as indicator; formula is (signal dbm - noise dbm). | |
3769 | * SNR at or above 40 is a great signal (100%). | |
3770 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
3771 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
3772 | if (noise_dbm) { | |
3773 | if (rssi_dbm - noise_dbm >= 40) | |
3774 | return 100; | |
3775 | else if (rssi_dbm < noise_dbm) | |
3776 | return 0; | |
3777 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
3778 | ||
3779 | /* Else use just the signal level. | |
3780 | * This formula is a least squares fit of data points collected and | |
3781 | * compared with a reference system that had a percentage (%) display | |
3782 | * for signal quality. */ | |
3783 | } else | |
3784 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
3785 | (15 * RSSI_RANGE + 62 * degradation)) / | |
3786 | (RSSI_RANGE * RSSI_RANGE); | |
3787 | ||
3788 | if (sig_qual > 100) | |
3789 | sig_qual = 100; | |
3790 | else if (sig_qual < 1) | |
3791 | sig_qual = 0; | |
3792 | ||
3793 | return sig_qual; | |
3794 | } | |
3795 | ||
3796 | /** | |
9fbab516 | 3797 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
3798 | * |
3799 | * Uses the priv->rx_handlers callback function array to invoke | |
3800 | * the appropriate handlers, including command responses, | |
3801 | * frame-received notifications, and other notifications. | |
3802 | */ | |
bb8c093b | 3803 | static void iwl3945_rx_handle(struct iwl3945_priv *priv) |
b481de9c | 3804 | { |
bb8c093b CH |
3805 | struct iwl3945_rx_mem_buffer *rxb; |
3806 | struct iwl3945_rx_packet *pkt; | |
3807 | struct iwl3945_rx_queue *rxq = &priv->rxq; | |
b481de9c ZY |
3808 | u32 r, i; |
3809 | int reclaim; | |
3810 | unsigned long flags; | |
5c0eef96 | 3811 | u8 fill_rx = 0; |
d68ab680 | 3812 | u32 count = 8; |
b481de9c | 3813 | |
6440adb5 CB |
3814 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
3815 | * buffer that the driver may process (last buffer filled by ucode). */ | |
bb8c093b | 3816 | r = iwl3945_hw_get_rx_read(priv); |
b481de9c ZY |
3817 | i = rxq->read; |
3818 | ||
5c0eef96 MA |
3819 | if (iwl3945_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
3820 | fill_rx = 1; | |
b481de9c ZY |
3821 | /* Rx interrupt, but nothing sent from uCode */ |
3822 | if (i == r) | |
3823 | IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i); | |
3824 | ||
3825 | while (i != r) { | |
3826 | rxb = rxq->queue[i]; | |
3827 | ||
9fbab516 | 3828 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
3829 | * then a bug has been introduced in the queue refilling |
3830 | * routines -- catch it here */ | |
3831 | BUG_ON(rxb == NULL); | |
3832 | ||
3833 | rxq->queue[i] = NULL; | |
3834 | ||
3835 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
3836 | IWL_RX_BUF_SIZE, | |
3837 | PCI_DMA_FROMDEVICE); | |
bb8c093b | 3838 | pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3839 | |
3840 | /* Reclaim a command buffer only if this packet is a response | |
3841 | * to a (driver-originated) command. | |
3842 | * If the packet (e.g. Rx frame) originated from uCode, | |
3843 | * there is no command buffer to reclaim. | |
3844 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
3845 | * but apparently a few don't get set; catch them here. */ | |
3846 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
3847 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
3848 | (pkt->hdr.cmd != REPLY_TX); | |
3849 | ||
3850 | /* Based on type of command response or notification, | |
3851 | * handle those that need handling via function in | |
bb8c093b | 3852 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c ZY |
3853 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
3854 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
3855 | "r = %d, i = %d, %s, 0x%02x\n", r, i, | |
3856 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
3857 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); | |
3858 | } else { | |
3859 | /* No handling needed */ | |
3860 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
3861 | "r %d i %d No handler needed for %s, 0x%02x\n", | |
3862 | r, i, get_cmd_string(pkt->hdr.cmd), | |
3863 | pkt->hdr.cmd); | |
3864 | } | |
3865 | ||
3866 | if (reclaim) { | |
9fbab516 BC |
3867 | /* Invoke any callbacks, transfer the skb to caller, and |
3868 | * fire off the (possibly) blocking iwl3945_send_cmd() | |
b481de9c ZY |
3869 | * as we reclaim the driver command queue */ |
3870 | if (rxb && rxb->skb) | |
bb8c093b | 3871 | iwl3945_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
3872 | else |
3873 | IWL_WARNING("Claim null rxb?\n"); | |
3874 | } | |
3875 | ||
3876 | /* For now we just don't re-use anything. We can tweak this | |
3877 | * later to try and re-use notification packets and SKBs that | |
3878 | * fail to Rx correctly */ | |
3879 | if (rxb->skb != NULL) { | |
3880 | priv->alloc_rxb_skb--; | |
3881 | dev_kfree_skb_any(rxb->skb); | |
3882 | rxb->skb = NULL; | |
3883 | } | |
3884 | ||
3885 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
3886 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3887 | spin_lock_irqsave(&rxq->lock, flags); | |
3888 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
3889 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3890 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
3891 | /* If there are a lot of unused frames, |
3892 | * restock the Rx queue so ucode won't assert. */ | |
3893 | if (fill_rx) { | |
3894 | count++; | |
3895 | if (count >= 8) { | |
3896 | priv->rxq.read = i; | |
3897 | __iwl3945_rx_replenish(priv); | |
3898 | count = 0; | |
3899 | } | |
3900 | } | |
b481de9c ZY |
3901 | } |
3902 | ||
3903 | /* Backtrack one entry */ | |
3904 | priv->rxq.read = i; | |
bb8c093b | 3905 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3906 | } |
3907 | ||
6440adb5 CB |
3908 | /** |
3909 | * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware | |
3910 | */ | |
bb8c093b CH |
3911 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
3912 | struct iwl3945_tx_queue *txq) | |
b481de9c ZY |
3913 | { |
3914 | u32 reg = 0; | |
3915 | int rc = 0; | |
3916 | int txq_id = txq->q.id; | |
3917 | ||
3918 | if (txq->need_update == 0) | |
3919 | return rc; | |
3920 | ||
3921 | /* if we're trying to save power */ | |
3922 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { | |
3923 | /* wake up nic if it's powered down ... | |
3924 | * uCode will wake up, and interrupt us again, so next | |
3925 | * time we'll skip this part. */ | |
bb8c093b | 3926 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3927 | |
3928 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
3929 | IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg); | |
bb8c093b | 3930 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3931 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3932 | return rc; | |
3933 | } | |
3934 | ||
3935 | /* restore this queue's parameters in nic hardware. */ | |
bb8c093b | 3936 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3937 | if (rc) |
3938 | return rc; | |
bb8c093b | 3939 | iwl3945_write_direct32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 3940 | txq->q.write_ptr | (txq_id << 8)); |
bb8c093b | 3941 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
3942 | |
3943 | /* else not in power-save mode, uCode will never sleep when we're | |
3944 | * trying to tx (during RFKILL, we're not trying to tx). */ | |
3945 | } else | |
bb8c093b | 3946 | iwl3945_write32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 3947 | txq->q.write_ptr | (txq_id << 8)); |
b481de9c ZY |
3948 | |
3949 | txq->need_update = 0; | |
3950 | ||
3951 | return rc; | |
3952 | } | |
3953 | ||
c8b0e6e1 | 3954 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 3955 | static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c ZY |
3956 | { |
3957 | IWL_DEBUG_RADIO("RX CONFIG:\n"); | |
bb8c093b | 3958 | iwl3945_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
3959 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
3960 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
3961 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
3962 | le32_to_cpu(rxon->filter_flags)); | |
3963 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
3964 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
3965 | rxon->ofdm_basic_rates); | |
3966 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
e174961c JB |
3967 | IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr); |
3968 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
b481de9c ZY |
3969 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
3970 | } | |
3971 | #endif | |
3972 | ||
bb8c093b | 3973 | static void iwl3945_enable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
3974 | { |
3975 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
3976 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
bb8c093b | 3977 | iwl3945_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
3978 | } |
3979 | ||
0359facc MA |
3980 | |
3981 | /* call this function to flush any scheduled tasklet */ | |
3982 | static inline void iwl_synchronize_irq(struct iwl3945_priv *priv) | |
3983 | { | |
a96a27f9 | 3984 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
3985 | synchronize_irq(priv->pci_dev->irq); |
3986 | tasklet_kill(&priv->irq_tasklet); | |
3987 | } | |
3988 | ||
3989 | ||
bb8c093b | 3990 | static inline void iwl3945_disable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
3991 | { |
3992 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
3993 | ||
3994 | /* disable interrupts from uCode/NIC to host */ | |
bb8c093b | 3995 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
3996 | |
3997 | /* acknowledge/clear/reset any interrupts still pending | |
3998 | * from uCode or flow handler (Rx/Tx DMA) */ | |
bb8c093b CH |
3999 | iwl3945_write32(priv, CSR_INT, 0xffffffff); |
4000 | iwl3945_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
4001 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
4002 | } | |
4003 | ||
4004 | static const char *desc_lookup(int i) | |
4005 | { | |
4006 | switch (i) { | |
4007 | case 1: | |
4008 | return "FAIL"; | |
4009 | case 2: | |
4010 | return "BAD_PARAM"; | |
4011 | case 3: | |
4012 | return "BAD_CHECKSUM"; | |
4013 | case 4: | |
4014 | return "NMI_INTERRUPT"; | |
4015 | case 5: | |
4016 | return "SYSASSERT"; | |
4017 | case 6: | |
4018 | return "FATAL_ERROR"; | |
4019 | } | |
4020 | ||
4021 | return "UNKNOWN"; | |
4022 | } | |
4023 | ||
4024 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
4025 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
4026 | ||
bb8c093b | 4027 | static void iwl3945_dump_nic_error_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4028 | { |
4029 | u32 i; | |
4030 | u32 desc, time, count, base, data1; | |
4031 | u32 blink1, blink2, ilink1, ilink2; | |
4032 | int rc; | |
4033 | ||
4034 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
4035 | ||
bb8c093b | 4036 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4037 | IWL_ERROR("Not valid error log pointer 0x%08X\n", base); |
4038 | return; | |
4039 | } | |
4040 | ||
bb8c093b | 4041 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4042 | if (rc) { |
4043 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4044 | return; | |
4045 | } | |
4046 | ||
bb8c093b | 4047 | count = iwl3945_read_targ_mem(priv, base); |
b481de9c ZY |
4048 | |
4049 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
4050 | IWL_ERROR("Start IWL Error Log Dump:\n"); | |
2acae16e | 4051 | IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); |
b481de9c ZY |
4052 | } |
4053 | ||
4054 | IWL_ERROR("Desc Time asrtPC blink2 " | |
4055 | "ilink1 nmiPC Line\n"); | |
4056 | for (i = ERROR_START_OFFSET; | |
4057 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
4058 | i += ERROR_ELEM_SIZE) { | |
bb8c093b | 4059 | desc = iwl3945_read_targ_mem(priv, base + i); |
b481de9c | 4060 | time = |
bb8c093b | 4061 | iwl3945_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 4062 | blink1 = |
bb8c093b | 4063 | iwl3945_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 4064 | blink2 = |
bb8c093b | 4065 | iwl3945_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 4066 | ilink1 = |
bb8c093b | 4067 | iwl3945_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 4068 | ilink2 = |
bb8c093b | 4069 | iwl3945_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 4070 | data1 = |
bb8c093b | 4071 | iwl3945_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c ZY |
4072 | |
4073 | IWL_ERROR | |
4074 | ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
4075 | desc_lookup(desc), desc, time, blink1, blink2, | |
4076 | ilink1, ilink2, data1); | |
4077 | } | |
4078 | ||
bb8c093b | 4079 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4080 | |
4081 | } | |
4082 | ||
f58177b9 | 4083 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
4084 | |
4085 | /** | |
bb8c093b | 4086 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 4087 | * |
bb8c093b | 4088 | * NOTE: Must be called with iwl3945_grab_nic_access() already obtained! |
b481de9c | 4089 | */ |
bb8c093b | 4090 | static void iwl3945_print_event_log(struct iwl3945_priv *priv, u32 start_idx, |
b481de9c ZY |
4091 | u32 num_events, u32 mode) |
4092 | { | |
4093 | u32 i; | |
4094 | u32 base; /* SRAM byte address of event log header */ | |
4095 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
4096 | u32 ptr; /* SRAM byte address of log data */ | |
4097 | u32 ev, time, data; /* event log data */ | |
4098 | ||
4099 | if (num_events == 0) | |
4100 | return; | |
4101 | ||
4102 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
4103 | ||
4104 | if (mode == 0) | |
4105 | event_size = 2 * sizeof(u32); | |
4106 | else | |
4107 | event_size = 3 * sizeof(u32); | |
4108 | ||
4109 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
4110 | ||
4111 | /* "time" is actually "data" for mode 0 (no timestamp). | |
4112 | * place event id # at far right for easier visual parsing. */ | |
4113 | for (i = 0; i < num_events; i++) { | |
bb8c093b | 4114 | ev = iwl3945_read_targ_mem(priv, ptr); |
b481de9c | 4115 | ptr += sizeof(u32); |
bb8c093b | 4116 | time = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4117 | ptr += sizeof(u32); |
4118 | if (mode == 0) | |
4119 | IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */ | |
4120 | else { | |
bb8c093b | 4121 | data = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4122 | ptr += sizeof(u32); |
4123 | IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev); | |
4124 | } | |
4125 | } | |
4126 | } | |
4127 | ||
bb8c093b | 4128 | static void iwl3945_dump_nic_event_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4129 | { |
4130 | int rc; | |
4131 | u32 base; /* SRAM byte address of event log header */ | |
4132 | u32 capacity; /* event log capacity in # entries */ | |
4133 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
4134 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
4135 | u32 next_entry; /* index of next entry to be written by uCode */ | |
4136 | u32 size; /* # entries that we'll print */ | |
4137 | ||
4138 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 4139 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4140 | IWL_ERROR("Invalid event log pointer 0x%08X\n", base); |
4141 | return; | |
4142 | } | |
4143 | ||
bb8c093b | 4144 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4145 | if (rc) { |
4146 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4147 | return; | |
4148 | } | |
4149 | ||
4150 | /* event log header */ | |
bb8c093b CH |
4151 | capacity = iwl3945_read_targ_mem(priv, base); |
4152 | mode = iwl3945_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
4153 | num_wraps = iwl3945_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
4154 | next_entry = iwl3945_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c ZY |
4155 | |
4156 | size = num_wraps ? capacity : next_entry; | |
4157 | ||
4158 | /* bail out if nothing in log */ | |
4159 | if (size == 0) { | |
583fab37 | 4160 | IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); |
bb8c093b | 4161 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4162 | return; |
4163 | } | |
4164 | ||
583fab37 | 4165 | IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", |
b481de9c ZY |
4166 | size, num_wraps); |
4167 | ||
4168 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
4169 | * i.e the next one that uCode would fill. */ | |
4170 | if (num_wraps) | |
bb8c093b | 4171 | iwl3945_print_event_log(priv, next_entry, |
b481de9c ZY |
4172 | capacity - next_entry, mode); |
4173 | ||
4174 | /* (then/else) start at top of log */ | |
bb8c093b | 4175 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
b481de9c | 4176 | |
bb8c093b | 4177 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4178 | } |
4179 | ||
4180 | /** | |
bb8c093b | 4181 | * iwl3945_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 4182 | */ |
bb8c093b | 4183 | static void iwl3945_irq_handle_error(struct iwl3945_priv *priv) |
b481de9c | 4184 | { |
bb8c093b | 4185 | /* Set the FW error flag -- cleared on iwl3945_down */ |
b481de9c ZY |
4186 | set_bit(STATUS_FW_ERROR, &priv->status); |
4187 | ||
4188 | /* Cancel currently queued command. */ | |
4189 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
4190 | ||
c8b0e6e1 | 4191 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4192 | if (iwl3945_debug_level & IWL_DL_FW_ERRORS) { |
4193 | iwl3945_dump_nic_error_log(priv); | |
4194 | iwl3945_dump_nic_event_log(priv); | |
4195 | iwl3945_print_rx_config_cmd(&priv->staging_rxon); | |
b481de9c ZY |
4196 | } |
4197 | #endif | |
4198 | ||
4199 | wake_up_interruptible(&priv->wait_command_queue); | |
4200 | ||
4201 | /* Keep the restart process from trying to send host | |
4202 | * commands by clearing the INIT status bit */ | |
4203 | clear_bit(STATUS_READY, &priv->status); | |
4204 | ||
4205 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
4206 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS, | |
4207 | "Restarting adapter due to uCode error.\n"); | |
4208 | ||
bb8c093b | 4209 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4210 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
4211 | sizeof(priv->recovery_rxon)); | |
4212 | priv->error_recovering = 1; | |
4213 | } | |
4214 | queue_work(priv->workqueue, &priv->restart); | |
4215 | } | |
4216 | } | |
4217 | ||
bb8c093b | 4218 | static void iwl3945_error_recovery(struct iwl3945_priv *priv) |
b481de9c ZY |
4219 | { |
4220 | unsigned long flags; | |
4221 | ||
4222 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
4223 | sizeof(priv->staging_rxon)); | |
4224 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4225 | iwl3945_commit_rxon(priv); |
b481de9c | 4226 | |
bb8c093b | 4227 | iwl3945_add_station(priv, priv->bssid, 1, 0); |
b481de9c ZY |
4228 | |
4229 | spin_lock_irqsave(&priv->lock, flags); | |
4230 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
4231 | priv->error_recovering = 0; | |
4232 | spin_unlock_irqrestore(&priv->lock, flags); | |
4233 | } | |
4234 | ||
bb8c093b | 4235 | static void iwl3945_irq_tasklet(struct iwl3945_priv *priv) |
b481de9c ZY |
4236 | { |
4237 | u32 inta, handled = 0; | |
4238 | u32 inta_fh; | |
4239 | unsigned long flags; | |
c8b0e6e1 | 4240 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
4241 | u32 inta_mask; |
4242 | #endif | |
4243 | ||
4244 | spin_lock_irqsave(&priv->lock, flags); | |
4245 | ||
4246 | /* Ack/clear/reset pending uCode interrupts. | |
4247 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
4248 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
bb8c093b CH |
4249 | inta = iwl3945_read32(priv, CSR_INT); |
4250 | iwl3945_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
4251 | |
4252 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
4253 | * Any new interrupts that happen after this, either while we're | |
4254 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
bb8c093b CH |
4255 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); |
4256 | iwl3945_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 4257 | |
c8b0e6e1 | 4258 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4259 | if (iwl3945_debug_level & IWL_DL_ISR) { |
9fbab516 BC |
4260 | /* just for debug */ |
4261 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
b481de9c ZY |
4262 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
4263 | inta, inta_mask, inta_fh); | |
4264 | } | |
4265 | #endif | |
4266 | ||
4267 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
4268 | * atomic, make sure that inta covers all the interrupts that | |
4269 | * we've discovered, even if FH interrupt came in just after | |
4270 | * reading CSR_INT. */ | |
6f83eaa1 | 4271 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 4272 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 4273 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
4274 | inta |= CSR_INT_BIT_FH_TX; |
4275 | ||
4276 | /* Now service all interrupt bits discovered above. */ | |
4277 | if (inta & CSR_INT_BIT_HW_ERR) { | |
4278 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
4279 | ||
4280 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 4281 | iwl3945_disable_interrupts(priv); |
b481de9c | 4282 | |
bb8c093b | 4283 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4284 | |
4285 | handled |= CSR_INT_BIT_HW_ERR; | |
4286 | ||
4287 | spin_unlock_irqrestore(&priv->lock, flags); | |
4288 | ||
4289 | return; | |
4290 | } | |
4291 | ||
c8b0e6e1 | 4292 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4293 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
b481de9c | 4294 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
4295 | if (inta & CSR_INT_BIT_SCD) |
4296 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
4297 | "the frame/frames.\n"); | |
b481de9c ZY |
4298 | |
4299 | /* Alive notification via Rx interrupt will do the real work */ | |
4300 | if (inta & CSR_INT_BIT_ALIVE) | |
4301 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
4302 | } | |
4303 | #endif | |
4304 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 4305 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 4306 | |
b481de9c ZY |
4307 | /* Error detected by uCode */ |
4308 | if (inta & CSR_INT_BIT_SW_ERR) { | |
4309 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
4310 | inta); | |
bb8c093b | 4311 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4312 | handled |= CSR_INT_BIT_SW_ERR; |
4313 | } | |
4314 | ||
4315 | /* uCode wakes up after power-down sleep */ | |
4316 | if (inta & CSR_INT_BIT_WAKEUP) { | |
4317 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
bb8c093b CH |
4318 | iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq); |
4319 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]); | |
4320 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]); | |
4321 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]); | |
4322 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]); | |
4323 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]); | |
4324 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
4325 | |
4326 | handled |= CSR_INT_BIT_WAKEUP; | |
4327 | } | |
4328 | ||
4329 | /* All uCode command responses, including Tx command responses, | |
4330 | * Rx "responses" (frame-received notification), and other | |
4331 | * notifications from uCode come through here*/ | |
4332 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 4333 | iwl3945_rx_handle(priv); |
b481de9c ZY |
4334 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
4335 | } | |
4336 | ||
4337 | if (inta & CSR_INT_BIT_FH_TX) { | |
4338 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
4339 | ||
bb8c093b CH |
4340 | iwl3945_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
4341 | if (!iwl3945_grab_nic_access(priv)) { | |
4342 | iwl3945_write_direct32(priv, | |
b481de9c ZY |
4343 | FH_TCSR_CREDIT |
4344 | (ALM_FH_SRVC_CHNL), 0x0); | |
bb8c093b | 4345 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4346 | } |
4347 | handled |= CSR_INT_BIT_FH_TX; | |
4348 | } | |
4349 | ||
4350 | if (inta & ~handled) | |
4351 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
4352 | ||
4353 | if (inta & ~CSR_INI_SET_MASK) { | |
4354 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
4355 | inta & ~CSR_INI_SET_MASK); | |
4356 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
4357 | } | |
4358 | ||
4359 | /* Re-enable all interrupts */ | |
0359facc MA |
4360 | /* only Re-enable if disabled by irq */ |
4361 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4362 | iwl3945_enable_interrupts(priv); | |
b481de9c | 4363 | |
c8b0e6e1 | 4364 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4365 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
4366 | inta = iwl3945_read32(priv, CSR_INT); | |
4367 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
4368 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4369 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
4370 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
4371 | } | |
4372 | #endif | |
4373 | spin_unlock_irqrestore(&priv->lock, flags); | |
4374 | } | |
4375 | ||
bb8c093b | 4376 | static irqreturn_t iwl3945_isr(int irq, void *data) |
b481de9c | 4377 | { |
bb8c093b | 4378 | struct iwl3945_priv *priv = data; |
b481de9c ZY |
4379 | u32 inta, inta_mask; |
4380 | u32 inta_fh; | |
4381 | if (!priv) | |
4382 | return IRQ_NONE; | |
4383 | ||
4384 | spin_lock(&priv->lock); | |
4385 | ||
4386 | /* Disable (but don't clear!) interrupts here to avoid | |
4387 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
4388 | * If we have something to service, the tasklet will re-enable ints. | |
4389 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
bb8c093b CH |
4390 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); /* just for debug */ |
4391 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
4392 | |
4393 | /* Discover which interrupts are active/pending */ | |
bb8c093b CH |
4394 | inta = iwl3945_read32(priv, CSR_INT); |
4395 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4396 | |
4397 | /* Ignore interrupt if there's nothing in NIC to service. | |
4398 | * This may be due to IRQ shared with another device, | |
4399 | * or due to sporadic interrupts thrown from our NIC. */ | |
4400 | if (!inta && !inta_fh) { | |
4401 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
4402 | goto none; | |
4403 | } | |
4404 | ||
4405 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
4406 | /* Hardware disappeared */ | |
99df630c | 4407 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%08x\n", inta); |
cb4da1a3 | 4408 | goto unplugged; |
b481de9c ZY |
4409 | } |
4410 | ||
4411 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
4412 | inta, inta_mask, inta_fh); | |
4413 | ||
25c03d8e JP |
4414 | inta &= ~CSR_INT_BIT_SCD; |
4415 | ||
bb8c093b | 4416 | /* iwl3945_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
4417 | if (likely(inta || inta_fh)) |
4418 | tasklet_schedule(&priv->irq_tasklet); | |
cb4da1a3 | 4419 | unplugged: |
b481de9c ZY |
4420 | spin_unlock(&priv->lock); |
4421 | ||
4422 | return IRQ_HANDLED; | |
4423 | ||
4424 | none: | |
4425 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
4426 | /* only Re-enable if disabled by irq */ |
4427 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4428 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
4429 | spin_unlock(&priv->lock); |
4430 | return IRQ_NONE; | |
4431 | } | |
4432 | ||
4433 | /************************** EEPROM BANDS **************************** | |
4434 | * | |
bb8c093b | 4435 | * The iwl3945_eeprom_band definitions below provide the mapping from the |
b481de9c ZY |
4436 | * EEPROM contents to the specific channel number supported for each |
4437 | * band. | |
4438 | * | |
bb8c093b | 4439 | * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3 |
b481de9c ZY |
4440 | * definition below maps to physical channel 42 in the 5.2GHz spectrum. |
4441 | * The specific geography and calibration information for that channel | |
4442 | * is contained in the eeprom map itself. | |
4443 | * | |
4444 | * During init, we copy the eeprom information and channel map | |
4445 | * information into priv->channel_info_24/52 and priv->channel_map_24/52 | |
4446 | * | |
4447 | * channel_map_24/52 provides the index in the channel_info array for a | |
4448 | * given channel. We have to have two separate maps as there is channel | |
4449 | * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and | |
4450 | * band_2 | |
4451 | * | |
4452 | * A value of 0xff stored in the channel_map indicates that the channel | |
4453 | * is not supported by the hardware at all. | |
4454 | * | |
4455 | * A value of 0xfe in the channel_map indicates that the channel is not | |
4456 | * valid for Tx with the current hardware. This means that | |
4457 | * while the system can tune and receive on a given channel, it may not | |
4458 | * be able to associate or transmit any frames on that | |
4459 | * channel. There is no corresponding channel information for that | |
4460 | * entry. | |
4461 | * | |
4462 | *********************************************************************/ | |
4463 | ||
4464 | /* 2.4 GHz */ | |
bb8c093b | 4465 | static const u8 iwl3945_eeprom_band_1[14] = { |
b481de9c ZY |
4466 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
4467 | }; | |
4468 | ||
4469 | /* 5.2 GHz bands */ | |
9fbab516 | 4470 | static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */ |
b481de9c ZY |
4471 | 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
4472 | }; | |
4473 | ||
9fbab516 | 4474 | static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */ |
b481de9c ZY |
4475 | 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
4476 | }; | |
4477 | ||
bb8c093b | 4478 | static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */ |
b481de9c ZY |
4479 | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
4480 | }; | |
4481 | ||
bb8c093b | 4482 | static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */ |
b481de9c ZY |
4483 | 145, 149, 153, 157, 161, 165 |
4484 | }; | |
4485 | ||
bb8c093b | 4486 | static void iwl3945_init_band_reference(const struct iwl3945_priv *priv, int band, |
b481de9c | 4487 | int *eeprom_ch_count, |
bb8c093b | 4488 | const struct iwl3945_eeprom_channel |
b481de9c ZY |
4489 | **eeprom_ch_info, |
4490 | const u8 **eeprom_ch_index) | |
4491 | { | |
4492 | switch (band) { | |
4493 | case 1: /* 2.4GHz band */ | |
bb8c093b | 4494 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1); |
b481de9c | 4495 | *eeprom_ch_info = priv->eeprom.band_1_channels; |
bb8c093b | 4496 | *eeprom_ch_index = iwl3945_eeprom_band_1; |
b481de9c | 4497 | break; |
9fbab516 | 4498 | case 2: /* 4.9GHz band */ |
bb8c093b | 4499 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2); |
b481de9c | 4500 | *eeprom_ch_info = priv->eeprom.band_2_channels; |
bb8c093b | 4501 | *eeprom_ch_index = iwl3945_eeprom_band_2; |
b481de9c ZY |
4502 | break; |
4503 | case 3: /* 5.2GHz band */ | |
bb8c093b | 4504 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3); |
b481de9c | 4505 | *eeprom_ch_info = priv->eeprom.band_3_channels; |
bb8c093b | 4506 | *eeprom_ch_index = iwl3945_eeprom_band_3; |
b481de9c | 4507 | break; |
9fbab516 | 4508 | case 4: /* 5.5GHz band */ |
bb8c093b | 4509 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4); |
b481de9c | 4510 | *eeprom_ch_info = priv->eeprom.band_4_channels; |
bb8c093b | 4511 | *eeprom_ch_index = iwl3945_eeprom_band_4; |
b481de9c | 4512 | break; |
9fbab516 | 4513 | case 5: /* 5.7GHz band */ |
bb8c093b | 4514 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5); |
b481de9c | 4515 | *eeprom_ch_info = priv->eeprom.band_5_channels; |
bb8c093b | 4516 | *eeprom_ch_index = iwl3945_eeprom_band_5; |
b481de9c ZY |
4517 | break; |
4518 | default: | |
4519 | BUG(); | |
4520 | return; | |
4521 | } | |
4522 | } | |
4523 | ||
6440adb5 CB |
4524 | /** |
4525 | * iwl3945_get_channel_info - Find driver's private channel info | |
4526 | * | |
4527 | * Based on band and channel number. | |
4528 | */ | |
bb8c093b | 4529 | const struct iwl3945_channel_info *iwl3945_get_channel_info(const struct iwl3945_priv *priv, |
8318d78a | 4530 | enum ieee80211_band band, u16 channel) |
b481de9c ZY |
4531 | { |
4532 | int i; | |
4533 | ||
8318d78a JB |
4534 | switch (band) { |
4535 | case IEEE80211_BAND_5GHZ: | |
b481de9c ZY |
4536 | for (i = 14; i < priv->channel_count; i++) { |
4537 | if (priv->channel_info[i].channel == channel) | |
4538 | return &priv->channel_info[i]; | |
4539 | } | |
4540 | break; | |
4541 | ||
8318d78a | 4542 | case IEEE80211_BAND_2GHZ: |
b481de9c ZY |
4543 | if (channel >= 1 && channel <= 14) |
4544 | return &priv->channel_info[channel - 1]; | |
4545 | break; | |
8318d78a JB |
4546 | case IEEE80211_NUM_BANDS: |
4547 | WARN_ON(1); | |
b481de9c ZY |
4548 | } |
4549 | ||
4550 | return NULL; | |
4551 | } | |
4552 | ||
4553 | #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ | |
4554 | ? # x " " : "") | |
4555 | ||
6440adb5 CB |
4556 | /** |
4557 | * iwl3945_init_channel_map - Set up driver's info for all possible channels | |
4558 | */ | |
bb8c093b | 4559 | static int iwl3945_init_channel_map(struct iwl3945_priv *priv) |
b481de9c ZY |
4560 | { |
4561 | int eeprom_ch_count = 0; | |
4562 | const u8 *eeprom_ch_index = NULL; | |
bb8c093b | 4563 | const struct iwl3945_eeprom_channel *eeprom_ch_info = NULL; |
b481de9c | 4564 | int band, ch; |
bb8c093b | 4565 | struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4566 | |
4567 | if (priv->channel_count) { | |
4568 | IWL_DEBUG_INFO("Channel map already initialized.\n"); | |
4569 | return 0; | |
4570 | } | |
4571 | ||
4572 | if (priv->eeprom.version < 0x2f) { | |
4573 | IWL_WARNING("Unsupported EEPROM version: 0x%04X\n", | |
4574 | priv->eeprom.version); | |
4575 | return -EINVAL; | |
4576 | } | |
4577 | ||
4578 | IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n"); | |
4579 | ||
4580 | priv->channel_count = | |
bb8c093b CH |
4581 | ARRAY_SIZE(iwl3945_eeprom_band_1) + |
4582 | ARRAY_SIZE(iwl3945_eeprom_band_2) + | |
4583 | ARRAY_SIZE(iwl3945_eeprom_band_3) + | |
4584 | ARRAY_SIZE(iwl3945_eeprom_band_4) + | |
4585 | ARRAY_SIZE(iwl3945_eeprom_band_5); | |
b481de9c ZY |
4586 | |
4587 | IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count); | |
4588 | ||
bb8c093b | 4589 | priv->channel_info = kzalloc(sizeof(struct iwl3945_channel_info) * |
b481de9c ZY |
4590 | priv->channel_count, GFP_KERNEL); |
4591 | if (!priv->channel_info) { | |
4592 | IWL_ERROR("Could not allocate channel_info\n"); | |
4593 | priv->channel_count = 0; | |
4594 | return -ENOMEM; | |
4595 | } | |
4596 | ||
4597 | ch_info = priv->channel_info; | |
4598 | ||
4599 | /* Loop through the 5 EEPROM bands adding them in order to the | |
4600 | * channel map we maintain (that contains additional information than | |
4601 | * what just in the EEPROM) */ | |
4602 | for (band = 1; band <= 5; band++) { | |
4603 | ||
bb8c093b | 4604 | iwl3945_init_band_reference(priv, band, &eeprom_ch_count, |
b481de9c ZY |
4605 | &eeprom_ch_info, &eeprom_ch_index); |
4606 | ||
4607 | /* Loop through each band adding each of the channels */ | |
4608 | for (ch = 0; ch < eeprom_ch_count; ch++) { | |
4609 | ch_info->channel = eeprom_ch_index[ch]; | |
8318d78a JB |
4610 | ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : |
4611 | IEEE80211_BAND_5GHZ; | |
b481de9c ZY |
4612 | |
4613 | /* permanently store EEPROM's channel regulatory flags | |
4614 | * and max power in channel info database. */ | |
4615 | ch_info->eeprom = eeprom_ch_info[ch]; | |
4616 | ||
4617 | /* Copy the run-time flags so they are there even on | |
4618 | * invalid channels */ | |
4619 | ch_info->flags = eeprom_ch_info[ch].flags; | |
4620 | ||
4621 | if (!(is_channel_valid(ch_info))) { | |
4622 | IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - " | |
4623 | "No traffic\n", | |
4624 | ch_info->channel, | |
4625 | ch_info->flags, | |
4626 | is_channel_a_band(ch_info) ? | |
4627 | "5.2" : "2.4"); | |
4628 | ch_info++; | |
4629 | continue; | |
4630 | } | |
4631 | ||
4632 | /* Initialize regulatory-based run-time data */ | |
4633 | ch_info->max_power_avg = ch_info->curr_txpow = | |
4634 | eeprom_ch_info[ch].max_power_avg; | |
4635 | ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; | |
4636 | ch_info->min_power = 0; | |
4637 | ||
fe7c4040 | 4638 | IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x" |
b481de9c ZY |
4639 | " %ddBm): Ad-Hoc %ssupported\n", |
4640 | ch_info->channel, | |
4641 | is_channel_a_band(ch_info) ? | |
4642 | "5.2" : "2.4", | |
8211ef78 | 4643 | CHECK_AND_PRINT(VALID), |
b481de9c ZY |
4644 | CHECK_AND_PRINT(IBSS), |
4645 | CHECK_AND_PRINT(ACTIVE), | |
4646 | CHECK_AND_PRINT(RADAR), | |
4647 | CHECK_AND_PRINT(WIDE), | |
b481de9c ZY |
4648 | CHECK_AND_PRINT(DFS), |
4649 | eeprom_ch_info[ch].flags, | |
4650 | eeprom_ch_info[ch].max_power_avg, | |
4651 | ((eeprom_ch_info[ch]. | |
4652 | flags & EEPROM_CHANNEL_IBSS) | |
4653 | && !(eeprom_ch_info[ch]. | |
4654 | flags & EEPROM_CHANNEL_RADAR)) | |
4655 | ? "" : "not "); | |
4656 | ||
4657 | /* Set the user_txpower_limit to the highest power | |
4658 | * supported by any channel */ | |
4659 | if (eeprom_ch_info[ch].max_power_avg > | |
4660 | priv->user_txpower_limit) | |
4661 | priv->user_txpower_limit = | |
4662 | eeprom_ch_info[ch].max_power_avg; | |
4663 | ||
4664 | ch_info++; | |
4665 | } | |
4666 | } | |
4667 | ||
6440adb5 | 4668 | /* Set up txpower settings in driver for all channels */ |
b481de9c ZY |
4669 | if (iwl3945_txpower_set_from_eeprom(priv)) |
4670 | return -EIO; | |
4671 | ||
4672 | return 0; | |
4673 | } | |
4674 | ||
849e0dce RC |
4675 | /* |
4676 | * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map | |
4677 | */ | |
4678 | static void iwl3945_free_channel_map(struct iwl3945_priv *priv) | |
4679 | { | |
4680 | kfree(priv->channel_info); | |
4681 | priv->channel_count = 0; | |
4682 | } | |
4683 | ||
b481de9c ZY |
4684 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
4685 | * sending probe req. This should be set long enough to hear probe responses | |
4686 | * from more than one AP. */ | |
f9340520 AK |
4687 | #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */ |
4688 | #define IWL_ACTIVE_DWELL_TIME_52 (20) | |
4689 | ||
4690 | #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3) | |
4691 | #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2) | |
b481de9c ZY |
4692 | |
4693 | /* For faster active scanning, scan will move to the next channel if fewer than | |
4694 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
4695 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
4696 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
4697 | * no other traffic). | |
4698 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
4699 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
f9340520 | 4700 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */ |
b481de9c ZY |
4701 | |
4702 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
4703 | * Must be set longer than active dwell time. | |
4704 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
4705 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
4706 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
4707 | #define IWL_PASSIVE_DWELL_BASE (100) | |
4708 | #define IWL_CHANNEL_TUNE_TIME 5 | |
4709 | ||
e720ce9d | 4710 | #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1))) |
f9340520 | 4711 | |
8318d78a | 4712 | static inline u16 iwl3945_get_active_dwell_time(struct iwl3945_priv *priv, |
f9340520 AK |
4713 | enum ieee80211_band band, |
4714 | u8 n_probes) | |
b481de9c | 4715 | { |
8318d78a | 4716 | if (band == IEEE80211_BAND_5GHZ) |
f9340520 AK |
4717 | return IWL_ACTIVE_DWELL_TIME_52 + |
4718 | IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1); | |
b481de9c | 4719 | else |
f9340520 AK |
4720 | return IWL_ACTIVE_DWELL_TIME_24 + |
4721 | IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1); | |
b481de9c ZY |
4722 | } |
4723 | ||
8318d78a JB |
4724 | static u16 iwl3945_get_passive_dwell_time(struct iwl3945_priv *priv, |
4725 | enum ieee80211_band band) | |
b481de9c | 4726 | { |
8318d78a | 4727 | u16 passive = (band == IEEE80211_BAND_2GHZ) ? |
b481de9c ZY |
4728 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
4729 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
4730 | ||
bb8c093b | 4731 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4732 | /* If we're associated, we clamp the maximum passive |
4733 | * dwell time to be 98% of the beacon interval (minus | |
4734 | * 2 * channel tune time) */ | |
4735 | passive = priv->beacon_int; | |
4736 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
4737 | passive = IWL_PASSIVE_DWELL_BASE; | |
4738 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
4739 | } | |
4740 | ||
b481de9c ZY |
4741 | return passive; |
4742 | } | |
4743 | ||
8318d78a JB |
4744 | static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv, |
4745 | enum ieee80211_band band, | |
f9340520 | 4746 | u8 is_active, u8 n_probes, |
bb8c093b | 4747 | struct iwl3945_scan_channel *scan_ch) |
b481de9c ZY |
4748 | { |
4749 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 4750 | const struct ieee80211_supported_band *sband; |
bb8c093b | 4751 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4752 | u16 passive_dwell = 0; |
4753 | u16 active_dwell = 0; | |
4754 | int added, i; | |
4755 | ||
8318d78a JB |
4756 | sband = iwl3945_get_band(priv, band); |
4757 | if (!sband) | |
b481de9c ZY |
4758 | return 0; |
4759 | ||
8318d78a | 4760 | channels = sband->channels; |
b481de9c | 4761 | |
f9340520 | 4762 | active_dwell = iwl3945_get_active_dwell_time(priv, band, n_probes); |
8318d78a | 4763 | passive_dwell = iwl3945_get_passive_dwell_time(priv, band); |
b481de9c | 4764 | |
8f4807a1 AK |
4765 | if (passive_dwell <= active_dwell) |
4766 | passive_dwell = active_dwell + 1; | |
4767 | ||
8318d78a | 4768 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
4769 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
4770 | continue; | |
4771 | ||
8318d78a | 4772 | scan_ch->channel = channels[i].hw_value; |
b481de9c | 4773 | |
8318d78a | 4774 | ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel); |
b481de9c | 4775 | if (!is_channel_valid(ch_info)) { |
66b5004d | 4776 | IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n", |
b481de9c ZY |
4777 | scan_ch->channel); |
4778 | continue; | |
4779 | } | |
4780 | ||
011a0330 AK |
4781 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
4782 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
4783 | /* If passive , set up for auto-switch | |
4784 | * and use long active_dwell time. | |
4785 | */ | |
b481de9c | 4786 | if (!is_active || is_channel_passive(ch_info) || |
011a0330 | 4787 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
b481de9c | 4788 | scan_ch->type = 0; /* passive */ |
011a0330 AK |
4789 | if (IWL_UCODE_API(priv->ucode_ver) == 1) |
4790 | scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); | |
4791 | } else { | |
b481de9c | 4792 | scan_ch->type = 1; /* active */ |
011a0330 | 4793 | } |
b481de9c | 4794 | |
011a0330 AK |
4795 | /* Set direct probe bits. These may be used both for active |
4796 | * scan channels (probes gets sent right away), | |
4797 | * or for passive channels (probes get se sent only after | |
4798 | * hearing clear Rx packet).*/ | |
4799 | if (IWL_UCODE_API(priv->ucode_ver) >= 2) { | |
4800 | if (n_probes) | |
4801 | scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes); | |
4802 | } else { | |
4803 | /* uCode v1 does not allow setting direct probe bits on | |
4804 | * passive channel. */ | |
4805 | if ((scan_ch->type & 1) && n_probes) | |
4806 | scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes); | |
4807 | } | |
b481de9c | 4808 | |
9fbab516 | 4809 | /* Set txpower levels to defaults */ |
b481de9c ZY |
4810 | scan_ch->tpc.dsp_atten = 110; |
4811 | /* scan_pwr_info->tpc.dsp_atten; */ | |
4812 | ||
4813 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 4814 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
4815 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
4816 | else { | |
4817 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
4818 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 4819 | * power level: |
8a1b0245 | 4820 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
4821 | */ |
4822 | } | |
4823 | ||
4824 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
4825 | scan_ch->channel, | |
4826 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
4827 | (scan_ch->type & 1) ? | |
4828 | active_dwell : passive_dwell); | |
4829 | ||
4830 | scan_ch++; | |
4831 | added++; | |
4832 | } | |
4833 | ||
4834 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
4835 | return added; | |
4836 | } | |
4837 | ||
bb8c093b | 4838 | static void iwl3945_init_hw_rates(struct iwl3945_priv *priv, |
b481de9c ZY |
4839 | struct ieee80211_rate *rates) |
4840 | { | |
4841 | int i; | |
4842 | ||
4843 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
4844 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
4845 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
4846 | rates[i].hw_value_short = i; | |
4847 | rates[i].flags = 0; | |
4848 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
b481de9c | 4849 | /* |
8318d78a | 4850 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 4851 | */ |
bb8c093b | 4852 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 4853 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 4854 | } |
b481de9c ZY |
4855 | } |
4856 | } | |
4857 | ||
4858 | /** | |
bb8c093b | 4859 | * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom |
b481de9c | 4860 | */ |
bb8c093b | 4861 | static int iwl3945_init_geos(struct iwl3945_priv *priv) |
b481de9c | 4862 | { |
bb8c093b | 4863 | struct iwl3945_channel_info *ch; |
8211ef78 | 4864 | struct ieee80211_supported_band *sband; |
b481de9c ZY |
4865 | struct ieee80211_channel *channels; |
4866 | struct ieee80211_channel *geo_ch; | |
4867 | struct ieee80211_rate *rates; | |
4868 | int i = 0; | |
b481de9c | 4869 | |
8318d78a JB |
4870 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
4871 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
b481de9c ZY |
4872 | IWL_DEBUG_INFO("Geography modes already initialized.\n"); |
4873 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
4874 | return 0; | |
4875 | } | |
4876 | ||
b481de9c ZY |
4877 | channels = kzalloc(sizeof(struct ieee80211_channel) * |
4878 | priv->channel_count, GFP_KERNEL); | |
8318d78a | 4879 | if (!channels) |
b481de9c | 4880 | return -ENOMEM; |
b481de9c | 4881 | |
8211ef78 | 4882 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), |
b481de9c ZY |
4883 | GFP_KERNEL); |
4884 | if (!rates) { | |
b481de9c ZY |
4885 | kfree(channels); |
4886 | return -ENOMEM; | |
4887 | } | |
4888 | ||
b481de9c | 4889 | /* 5.2GHz channels start after the 2.4GHz channels */ |
8211ef78 TW |
4890 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
4891 | sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)]; | |
4892 | /* just OFDM */ | |
4893 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
4894 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
4895 | ||
4896 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
4897 | sband->channels = channels; | |
4898 | /* OFDM & CCK */ | |
4899 | sband->bitrates = rates; | |
4900 | sband->n_bitrates = IWL_RATE_COUNT; | |
b481de9c ZY |
4901 | |
4902 | priv->ieee_channels = channels; | |
4903 | priv->ieee_rates = rates; | |
4904 | ||
bb8c093b | 4905 | iwl3945_init_hw_rates(priv, rates); |
b481de9c | 4906 | |
8211ef78 | 4907 | for (i = 0; i < priv->channel_count; i++) { |
b481de9c ZY |
4908 | ch = &priv->channel_info[i]; |
4909 | ||
8211ef78 TW |
4910 | /* FIXME: might be removed if scan is OK*/ |
4911 | if (!is_channel_valid(ch)) | |
b481de9c | 4912 | continue; |
b481de9c ZY |
4913 | |
4914 | if (is_channel_a_band(ch)) | |
8211ef78 | 4915 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
8318d78a | 4916 | else |
8211ef78 | 4917 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
b481de9c | 4918 | |
8211ef78 TW |
4919 | geo_ch = &sband->channels[sband->n_channels++]; |
4920 | ||
4921 | geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel); | |
8318d78a JB |
4922 | geo_ch->max_power = ch->max_power_avg; |
4923 | geo_ch->max_antenna_gain = 0xff; | |
7b72304d | 4924 | geo_ch->hw_value = ch->channel; |
b481de9c ZY |
4925 | |
4926 | if (is_channel_valid(ch)) { | |
8318d78a JB |
4927 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
4928 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
b481de9c | 4929 | |
8318d78a JB |
4930 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
4931 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
b481de9c ZY |
4932 | |
4933 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
8318d78a | 4934 | geo_ch->flags |= IEEE80211_CHAN_RADAR; |
b481de9c ZY |
4935 | |
4936 | if (ch->max_power_avg > priv->max_channel_txpower_limit) | |
4937 | priv->max_channel_txpower_limit = | |
4938 | ch->max_power_avg; | |
8211ef78 | 4939 | } else { |
8318d78a | 4940 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
8211ef78 TW |
4941 | } |
4942 | ||
4943 | /* Save flags for reg domain usage */ | |
4944 | geo_ch->orig_flags = geo_ch->flags; | |
4945 | ||
4946 | IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n", | |
4947 | ch->channel, geo_ch->center_freq, | |
4948 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
4949 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
4950 | "restricted" : "valid", | |
4951 | geo_ch->flags); | |
b481de9c ZY |
4952 | } |
4953 | ||
82b9a121 TW |
4954 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
4955 | priv->cfg->sku & IWL_SKU_A) { | |
b481de9c ZY |
4956 | printk(KERN_INFO DRV_NAME |
4957 | ": Incorrectly detected BG card as ABG. Please send " | |
4958 | "your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
4959 | priv->pci_dev->device, priv->pci_dev->subsystem_device); | |
82b9a121 | 4960 | priv->cfg->sku &= ~IWL_SKU_A; |
b481de9c ZY |
4961 | } |
4962 | ||
4963 | printk(KERN_INFO DRV_NAME | |
4964 | ": Tunable channels: %d 802.11bg, %d 802.11a channels\n", | |
8318d78a JB |
4965 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
4966 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
b481de9c | 4967 | |
e0e0a67e JL |
4968 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
4969 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
4970 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
4971 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
4972 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
4973 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
b481de9c | 4974 | |
b481de9c ZY |
4975 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
4976 | ||
4977 | return 0; | |
4978 | } | |
4979 | ||
849e0dce RC |
4980 | /* |
4981 | * iwl3945_free_geos - undo allocations in iwl3945_init_geos | |
4982 | */ | |
4983 | static void iwl3945_free_geos(struct iwl3945_priv *priv) | |
4984 | { | |
849e0dce RC |
4985 | kfree(priv->ieee_channels); |
4986 | kfree(priv->ieee_rates); | |
4987 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
4988 | } | |
4989 | ||
b481de9c ZY |
4990 | /****************************************************************************** |
4991 | * | |
4992 | * uCode download functions | |
4993 | * | |
4994 | ******************************************************************************/ | |
4995 | ||
bb8c093b | 4996 | static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv *priv) |
b481de9c | 4997 | { |
98c92211 TW |
4998 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
4999 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
5000 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
5001 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
5002 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
5003 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
5004 | } |
5005 | ||
5006 | /** | |
bb8c093b | 5007 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5008 | * looking at all data. |
5009 | */ | |
3ac7f146 | 5010 | static int iwl3945_verify_inst_full(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5011 | { |
5012 | u32 val; | |
5013 | u32 save_len = len; | |
5014 | int rc = 0; | |
5015 | u32 errcnt; | |
5016 | ||
5017 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5018 | ||
bb8c093b | 5019 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5020 | if (rc) |
5021 | return rc; | |
5022 | ||
bb8c093b | 5023 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND); |
b481de9c ZY |
5024 | |
5025 | errcnt = 0; | |
5026 | for (; len > 0; len -= sizeof(u32), image++) { | |
5027 | /* read data comes through single port, auto-incr addr */ | |
5028 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5029 | * if IWL_DL_IO is set */ | |
bb8c093b | 5030 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5031 | if (val != le32_to_cpu(*image)) { |
5032 | IWL_ERROR("uCode INST section is invalid at " | |
5033 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5034 | save_len - len, val, le32_to_cpu(*image)); | |
5035 | rc = -EIO; | |
5036 | errcnt++; | |
5037 | if (errcnt >= 20) | |
5038 | break; | |
5039 | } | |
5040 | } | |
5041 | ||
bb8c093b | 5042 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5043 | |
5044 | if (!errcnt) | |
bc434dd2 | 5045 | IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n"); |
b481de9c ZY |
5046 | |
5047 | return rc; | |
5048 | } | |
5049 | ||
5050 | ||
5051 | /** | |
bb8c093b | 5052 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5053 | * using sample data 100 bytes apart. If these sample points are good, |
5054 | * it's a pretty good bet that everything between them is good, too. | |
5055 | */ | |
bb8c093b | 5056 | static int iwl3945_verify_inst_sparse(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5057 | { |
5058 | u32 val; | |
5059 | int rc = 0; | |
5060 | u32 errcnt = 0; | |
5061 | u32 i; | |
5062 | ||
5063 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5064 | ||
bb8c093b | 5065 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5066 | if (rc) |
5067 | return rc; | |
5068 | ||
5069 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
5070 | /* read data comes through single port, auto-incr addr */ | |
5071 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5072 | * if IWL_DL_IO is set */ | |
bb8c093b | 5073 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
b481de9c | 5074 | i + RTC_INST_LOWER_BOUND); |
bb8c093b | 5075 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5076 | if (val != le32_to_cpu(*image)) { |
5077 | #if 0 /* Enable this if you want to see details */ | |
5078 | IWL_ERROR("uCode INST section is invalid at " | |
5079 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5080 | i, val, *image); | |
5081 | #endif | |
5082 | rc = -EIO; | |
5083 | errcnt++; | |
5084 | if (errcnt >= 3) | |
5085 | break; | |
5086 | } | |
5087 | } | |
5088 | ||
bb8c093b | 5089 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5090 | |
5091 | return rc; | |
5092 | } | |
5093 | ||
5094 | ||
5095 | /** | |
bb8c093b | 5096 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
5097 | * and verify its contents |
5098 | */ | |
bb8c093b | 5099 | static int iwl3945_verify_ucode(struct iwl3945_priv *priv) |
b481de9c ZY |
5100 | { |
5101 | __le32 *image; | |
5102 | u32 len; | |
5103 | int rc = 0; | |
5104 | ||
5105 | /* Try bootstrap */ | |
5106 | image = (__le32 *)priv->ucode_boot.v_addr; | |
5107 | len = priv->ucode_boot.len; | |
bb8c093b | 5108 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5109 | if (rc == 0) { |
5110 | IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n"); | |
5111 | return 0; | |
5112 | } | |
5113 | ||
5114 | /* Try initialize */ | |
5115 | image = (__le32 *)priv->ucode_init.v_addr; | |
5116 | len = priv->ucode_init.len; | |
bb8c093b | 5117 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5118 | if (rc == 0) { |
5119 | IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n"); | |
5120 | return 0; | |
5121 | } | |
5122 | ||
5123 | /* Try runtime/protocol */ | |
5124 | image = (__le32 *)priv->ucode_code.v_addr; | |
5125 | len = priv->ucode_code.len; | |
bb8c093b | 5126 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5127 | if (rc == 0) { |
5128 | IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n"); | |
5129 | return 0; | |
5130 | } | |
5131 | ||
5132 | IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); | |
5133 | ||
9fbab516 BC |
5134 | /* Since nothing seems to match, show first several data entries in |
5135 | * instruction SRAM, so maybe visual inspection will give a clue. | |
5136 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
5137 | image = (__le32 *)priv->ucode_boot.v_addr; |
5138 | len = priv->ucode_boot.len; | |
bb8c093b | 5139 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
5140 | |
5141 | return rc; | |
5142 | } | |
5143 | ||
5144 | ||
5145 | /* check contents of special bootstrap uCode SRAM */ | |
bb8c093b | 5146 | static int iwl3945_verify_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5147 | { |
5148 | __le32 *image = priv->ucode_boot.v_addr; | |
5149 | u32 len = priv->ucode_boot.len; | |
5150 | u32 reg; | |
5151 | u32 val; | |
5152 | ||
5153 | IWL_DEBUG_INFO("Begin verify bsm\n"); | |
5154 | ||
5155 | /* verify BSM SRAM contents */ | |
bb8c093b | 5156 | val = iwl3945_read_prph(priv, BSM_WR_DWCOUNT_REG); |
b481de9c ZY |
5157 | for (reg = BSM_SRAM_LOWER_BOUND; |
5158 | reg < BSM_SRAM_LOWER_BOUND + len; | |
3ac7f146 | 5159 | reg += sizeof(u32), image++) { |
bb8c093b | 5160 | val = iwl3945_read_prph(priv, reg); |
b481de9c ZY |
5161 | if (val != le32_to_cpu(*image)) { |
5162 | IWL_ERROR("BSM uCode verification failed at " | |
5163 | "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", | |
5164 | BSM_SRAM_LOWER_BOUND, | |
5165 | reg - BSM_SRAM_LOWER_BOUND, len, | |
5166 | val, le32_to_cpu(*image)); | |
5167 | return -EIO; | |
5168 | } | |
5169 | } | |
5170 | ||
5171 | IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n"); | |
5172 | ||
5173 | return 0; | |
5174 | } | |
5175 | ||
5176 | /** | |
bb8c093b | 5177 | * iwl3945_load_bsm - Load bootstrap instructions |
b481de9c ZY |
5178 | * |
5179 | * BSM operation: | |
5180 | * | |
5181 | * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program | |
5182 | * in special SRAM that does not power down during RFKILL. When powering back | |
5183 | * up after power-saving sleeps (or during initial uCode load), the BSM loads | |
5184 | * the bootstrap program into the on-board processor, and starts it. | |
5185 | * | |
5186 | * The bootstrap program loads (via DMA) instructions and data for a new | |
5187 | * program from host DRAM locations indicated by the host driver in the | |
5188 | * BSM_DRAM_* registers. Once the new program is loaded, it starts | |
5189 | * automatically. | |
5190 | * | |
5191 | * When initializing the NIC, the host driver points the BSM to the | |
5192 | * "initialize" uCode image. This uCode sets up some internal data, then | |
5193 | * notifies host via "initialize alive" that it is complete. | |
5194 | * | |
5195 | * The host then replaces the BSM_DRAM_* pointer values to point to the | |
5196 | * normal runtime uCode instructions and a backup uCode data cache buffer | |
5197 | * (filled initially with starting data values for the on-board processor), | |
5198 | * then triggers the "initialize" uCode to load and launch the runtime uCode, | |
5199 | * which begins normal operation. | |
5200 | * | |
5201 | * When doing a power-save shutdown, runtime uCode saves data SRAM into | |
5202 | * the backup data cache in DRAM before SRAM is powered down. | |
5203 | * | |
5204 | * When powering back up, the BSM loads the bootstrap program. This reloads | |
5205 | * the runtime uCode instructions and the backup data cache into SRAM, | |
5206 | * and re-launches the runtime uCode from where it left off. | |
5207 | */ | |
bb8c093b | 5208 | static int iwl3945_load_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5209 | { |
5210 | __le32 *image = priv->ucode_boot.v_addr; | |
5211 | u32 len = priv->ucode_boot.len; | |
5212 | dma_addr_t pinst; | |
5213 | dma_addr_t pdata; | |
5214 | u32 inst_len; | |
5215 | u32 data_len; | |
5216 | int rc; | |
5217 | int i; | |
5218 | u32 done; | |
5219 | u32 reg_offset; | |
5220 | ||
5221 | IWL_DEBUG_INFO("Begin load bsm\n"); | |
5222 | ||
5223 | /* make sure bootstrap program is no larger than BSM's SRAM size */ | |
5224 | if (len > IWL_MAX_BSM_SIZE) | |
5225 | return -EINVAL; | |
5226 | ||
5227 | /* Tell bootstrap uCode where to find the "Initialize" uCode | |
9fbab516 | 5228 | * in host DRAM ... host DRAM physical address bits 31:0 for 3945. |
bb8c093b | 5229 | * NOTE: iwl3945_initialize_alive_start() will replace these values, |
b481de9c ZY |
5230 | * after the "initialize" uCode has run, to point to |
5231 | * runtime/protocol instructions and backup data cache. */ | |
5232 | pinst = priv->ucode_init.p_addr; | |
5233 | pdata = priv->ucode_init_data.p_addr; | |
5234 | inst_len = priv->ucode_init.len; | |
5235 | data_len = priv->ucode_init_data.len; | |
5236 | ||
bb8c093b | 5237 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5238 | if (rc) |
5239 | return rc; | |
5240 | ||
bb8c093b CH |
5241 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5242 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5243 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); | |
5244 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); | |
b481de9c ZY |
5245 | |
5246 | /* Fill BSM memory with bootstrap instructions */ | |
5247 | for (reg_offset = BSM_SRAM_LOWER_BOUND; | |
5248 | reg_offset < BSM_SRAM_LOWER_BOUND + len; | |
5249 | reg_offset += sizeof(u32), image++) | |
bb8c093b | 5250 | _iwl3945_write_prph(priv, reg_offset, |
b481de9c ZY |
5251 | le32_to_cpu(*image)); |
5252 | ||
bb8c093b | 5253 | rc = iwl3945_verify_bsm(priv); |
b481de9c | 5254 | if (rc) { |
bb8c093b | 5255 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5256 | return rc; |
5257 | } | |
5258 | ||
5259 | /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ | |
bb8c093b CH |
5260 | iwl3945_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); |
5261 | iwl3945_write_prph(priv, BSM_WR_MEM_DST_REG, | |
b481de9c | 5262 | RTC_INST_LOWER_BOUND); |
bb8c093b | 5263 | iwl3945_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); |
b481de9c ZY |
5264 | |
5265 | /* Load bootstrap code into instruction SRAM now, | |
5266 | * to prepare to load "initialize" uCode */ | |
bb8c093b | 5267 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5268 | BSM_WR_CTRL_REG_BIT_START); |
5269 | ||
5270 | /* Wait for load of bootstrap uCode to finish */ | |
5271 | for (i = 0; i < 100; i++) { | |
bb8c093b | 5272 | done = iwl3945_read_prph(priv, BSM_WR_CTRL_REG); |
b481de9c ZY |
5273 | if (!(done & BSM_WR_CTRL_REG_BIT_START)) |
5274 | break; | |
5275 | udelay(10); | |
5276 | } | |
5277 | if (i < 100) | |
5278 | IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i); | |
5279 | else { | |
5280 | IWL_ERROR("BSM write did not complete!\n"); | |
5281 | return -EIO; | |
5282 | } | |
5283 | ||
5284 | /* Enable future boot loads whenever power management unit triggers it | |
5285 | * (e.g. when powering back up after power-save shutdown) */ | |
bb8c093b | 5286 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5287 | BSM_WR_CTRL_REG_BIT_START_EN); |
5288 | ||
bb8c093b | 5289 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5290 | |
5291 | return 0; | |
5292 | } | |
5293 | ||
bb8c093b | 5294 | static void iwl3945_nic_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5295 | { |
5296 | /* Remove all resets to allow NIC to operate */ | |
bb8c093b | 5297 | iwl3945_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
5298 | } |
5299 | ||
5300 | /** | |
bb8c093b | 5301 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
5302 | * |
5303 | * Copy into buffers for card to fetch via bus-mastering | |
5304 | */ | |
bb8c093b | 5305 | static int iwl3945_read_ucode(struct iwl3945_priv *priv) |
b481de9c | 5306 | { |
bb8c093b | 5307 | struct iwl3945_ucode *ucode; |
a0987a8d | 5308 | int ret = -EINVAL, index; |
b481de9c ZY |
5309 | const struct firmware *ucode_raw; |
5310 | /* firmware file name contains uCode/driver compatibility version */ | |
a0987a8d RC |
5311 | const char *name_pre = priv->cfg->fw_name_pre; |
5312 | const unsigned int api_max = priv->cfg->ucode_api_max; | |
5313 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
5314 | char buf[25]; | |
b481de9c ZY |
5315 | u8 *src; |
5316 | size_t len; | |
a0987a8d | 5317 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
b481de9c ZY |
5318 | |
5319 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
5320 | * request_firmware() is synchronous, file is in memory on return. */ | |
a0987a8d RC |
5321 | for (index = api_max; index >= api_min; index--) { |
5322 | sprintf(buf, "%s%u%s", name_pre, index, ".ucode"); | |
5323 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); | |
5324 | if (ret < 0) { | |
5325 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
5326 | buf, ret); | |
5327 | if (ret == -ENOENT) | |
5328 | continue; | |
5329 | else | |
5330 | goto error; | |
5331 | } else { | |
5332 | if (index < api_max) | |
5333 | IWL_ERROR("Loaded firmware %s, which is deprecated. Please use API v%u instead.\n", | |
5334 | buf, api_max); | |
5335 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
5336 | buf, ucode_raw->size); | |
5337 | break; | |
5338 | } | |
b481de9c ZY |
5339 | } |
5340 | ||
a0987a8d RC |
5341 | if (ret < 0) |
5342 | goto error; | |
b481de9c ZY |
5343 | |
5344 | /* Make sure that we got at least our header! */ | |
5345 | if (ucode_raw->size < sizeof(*ucode)) { | |
5346 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 5347 | ret = -EINVAL; |
b481de9c ZY |
5348 | goto err_release; |
5349 | } | |
5350 | ||
5351 | /* Data from ucode file: header followed by uCode images */ | |
5352 | ucode = (void *)ucode_raw->data; | |
5353 | ||
c02b3acd | 5354 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
a0987a8d | 5355 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
b481de9c ZY |
5356 | inst_size = le32_to_cpu(ucode->inst_size); |
5357 | data_size = le32_to_cpu(ucode->data_size); | |
5358 | init_size = le32_to_cpu(ucode->init_size); | |
5359 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
5360 | boot_size = le32_to_cpu(ucode->boot_size); | |
5361 | ||
a0987a8d RC |
5362 | /* api_ver should match the api version forming part of the |
5363 | * firmware filename ... but we don't check for that and only rely | |
5364 | * on the API version read from firware header from here on forward */ | |
5365 | ||
5366 | if (api_ver < api_min || api_ver > api_max) { | |
5367 | IWL_ERROR("Driver unable to support your firmware API. " | |
5368 | "Driver supports v%u, firmware is v%u.\n", | |
5369 | api_max, api_ver); | |
5370 | priv->ucode_ver = 0; | |
5371 | ret = -EINVAL; | |
5372 | goto err_release; | |
5373 | } | |
5374 | if (api_ver != api_max) | |
5375 | IWL_ERROR("Firmware has old API version. Expected %u, " | |
5376 | "got %u. New firmware can be obtained " | |
5377 | "from http://www.intellinuxwireless.org.\n", | |
5378 | api_max, api_ver); | |
5379 | ||
5380 | printk(KERN_INFO DRV_NAME " loaded firmware version %u.%u.%u.%u\n", | |
c02b3acd CR |
5381 | IWL_UCODE_MAJOR(priv->ucode_ver), |
5382 | IWL_UCODE_MINOR(priv->ucode_ver), | |
5383 | IWL_UCODE_API(priv->ucode_ver), | |
5384 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
a0987a8d RC |
5385 | IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n", |
5386 | priv->ucode_ver); | |
bc434dd2 IS |
5387 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size); |
5388 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size); | |
5389 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size); | |
5390 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size); | |
5391 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size); | |
b481de9c | 5392 | |
a0987a8d | 5393 | |
b481de9c ZY |
5394 | /* Verify size of file vs. image size info in file's header */ |
5395 | if (ucode_raw->size < sizeof(*ucode) + | |
5396 | inst_size + data_size + init_size + | |
5397 | init_data_size + boot_size) { | |
5398 | ||
5399 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
5400 | (int)ucode_raw->size); | |
90e759d1 | 5401 | ret = -EINVAL; |
b481de9c ZY |
5402 | goto err_release; |
5403 | } | |
5404 | ||
5405 | /* Verify that uCode images will fit in card's SRAM */ | |
5406 | if (inst_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5407 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
5408 | inst_size); | |
5409 | ret = -EINVAL; | |
b481de9c ZY |
5410 | goto err_release; |
5411 | } | |
5412 | ||
5413 | if (data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5414 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
5415 | data_size); | |
5416 | ret = -EINVAL; | |
b481de9c ZY |
5417 | goto err_release; |
5418 | } | |
5419 | if (init_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5420 | IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n", |
5421 | init_size); | |
5422 | ret = -EINVAL; | |
b481de9c ZY |
5423 | goto err_release; |
5424 | } | |
5425 | if (init_data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5426 | IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n", |
5427 | init_data_size); | |
5428 | ret = -EINVAL; | |
b481de9c ZY |
5429 | goto err_release; |
5430 | } | |
5431 | if (boot_size > IWL_MAX_BSM_SIZE) { | |
90e759d1 TW |
5432 | IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n", |
5433 | boot_size); | |
5434 | ret = -EINVAL; | |
b481de9c ZY |
5435 | goto err_release; |
5436 | } | |
5437 | ||
5438 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
5439 | ||
5440 | /* Runtime instructions and 2 copies of data: | |
5441 | * 1) unmodified from disk | |
5442 | * 2) backup cache for save/restore during power-downs */ | |
5443 | priv->ucode_code.len = inst_size; | |
98c92211 | 5444 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
5445 | |
5446 | priv->ucode_data.len = data_size; | |
98c92211 | 5447 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
5448 | |
5449 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 5450 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 5451 | |
90e759d1 TW |
5452 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
5453 | !priv->ucode_data_backup.v_addr) | |
5454 | goto err_pci_alloc; | |
b481de9c ZY |
5455 | |
5456 | /* Initialization instructions and data */ | |
90e759d1 TW |
5457 | if (init_size && init_data_size) { |
5458 | priv->ucode_init.len = init_size; | |
98c92211 | 5459 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
5460 | |
5461 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 5462 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
5463 | |
5464 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
5465 | goto err_pci_alloc; | |
5466 | } | |
b481de9c ZY |
5467 | |
5468 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
5469 | if (boot_size) { |
5470 | priv->ucode_boot.len = boot_size; | |
98c92211 | 5471 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 5472 | |
90e759d1 TW |
5473 | if (!priv->ucode_boot.v_addr) |
5474 | goto err_pci_alloc; | |
5475 | } | |
b481de9c ZY |
5476 | |
5477 | /* Copy images into buffers for card's bus-master reads ... */ | |
5478 | ||
5479 | /* Runtime instructions (first block of data in file) */ | |
5480 | src = &ucode->data[0]; | |
5481 | len = priv->ucode_code.len; | |
90e759d1 | 5482 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
5483 | memcpy(priv->ucode_code.v_addr, src, len); |
5484 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
5485 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
5486 | ||
5487 | /* Runtime data (2nd block) | |
bb8c093b | 5488 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
b481de9c ZY |
5489 | src = &ucode->data[inst_size]; |
5490 | len = priv->ucode_data.len; | |
90e759d1 | 5491 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
5492 | memcpy(priv->ucode_data.v_addr, src, len); |
5493 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
5494 | ||
5495 | /* Initialization instructions (3rd block) */ | |
5496 | if (init_size) { | |
5497 | src = &ucode->data[inst_size + data_size]; | |
5498 | len = priv->ucode_init.len; | |
90e759d1 TW |
5499 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
5500 | len); | |
b481de9c ZY |
5501 | memcpy(priv->ucode_init.v_addr, src, len); |
5502 | } | |
5503 | ||
5504 | /* Initialization data (4th block) */ | |
5505 | if (init_data_size) { | |
5506 | src = &ucode->data[inst_size + data_size + init_size]; | |
5507 | len = priv->ucode_init_data.len; | |
5508 | IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n", | |
5509 | (int)len); | |
5510 | memcpy(priv->ucode_init_data.v_addr, src, len); | |
5511 | } | |
5512 | ||
5513 | /* Bootstrap instructions (5th block) */ | |
5514 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
5515 | len = priv->ucode_boot.len; | |
5516 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n", | |
5517 | (int)len); | |
5518 | memcpy(priv->ucode_boot.v_addr, src, len); | |
5519 | ||
5520 | /* We have our copies now, allow OS release its copies */ | |
5521 | release_firmware(ucode_raw); | |
5522 | return 0; | |
5523 | ||
5524 | err_pci_alloc: | |
5525 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 5526 | ret = -ENOMEM; |
bb8c093b | 5527 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
5528 | |
5529 | err_release: | |
5530 | release_firmware(ucode_raw); | |
5531 | ||
5532 | error: | |
90e759d1 | 5533 | return ret; |
b481de9c ZY |
5534 | } |
5535 | ||
5536 | ||
5537 | /** | |
bb8c093b | 5538 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
5539 | * |
5540 | * Tell initialization uCode where to find runtime uCode. | |
5541 | * | |
5542 | * BSM registers initially contain pointers to initialization uCode. | |
5543 | * We need to replace them to load runtime uCode inst and data, | |
5544 | * and to save runtime data when powering down. | |
5545 | */ | |
bb8c093b | 5546 | static int iwl3945_set_ucode_ptrs(struct iwl3945_priv *priv) |
b481de9c ZY |
5547 | { |
5548 | dma_addr_t pinst; | |
5549 | dma_addr_t pdata; | |
5550 | int rc = 0; | |
5551 | unsigned long flags; | |
5552 | ||
5553 | /* bits 31:0 for 3945 */ | |
5554 | pinst = priv->ucode_code.p_addr; | |
5555 | pdata = priv->ucode_data_backup.p_addr; | |
5556 | ||
5557 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5558 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5559 | if (rc) { |
5560 | spin_unlock_irqrestore(&priv->lock, flags); | |
5561 | return rc; | |
5562 | } | |
5563 | ||
5564 | /* Tell bootstrap uCode where to find image to load */ | |
bb8c093b CH |
5565 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5566 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5567 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
5568 | priv->ucode_data.len); |
5569 | ||
a96a27f9 | 5570 | /* Inst byte count must be last to set up, bit 31 signals uCode |
b481de9c | 5571 | * that all new ptr/size info is in place */ |
bb8c093b | 5572 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
5573 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
5574 | ||
bb8c093b | 5575 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5576 | |
5577 | spin_unlock_irqrestore(&priv->lock, flags); | |
5578 | ||
5579 | IWL_DEBUG_INFO("Runtime uCode pointers are set.\n"); | |
5580 | ||
5581 | return rc; | |
5582 | } | |
5583 | ||
5584 | /** | |
bb8c093b | 5585 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
5586 | * |
5587 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
5588 | * | |
b481de9c | 5589 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 5590 | */ |
bb8c093b | 5591 | static void iwl3945_init_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5592 | { |
5593 | /* Check alive response for "valid" sign from uCode */ | |
5594 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
5595 | /* We had an error bringing up the hardware, so take it | |
5596 | * all the way back down so we can try again */ | |
5597 | IWL_DEBUG_INFO("Initialize Alive failed.\n"); | |
5598 | goto restart; | |
5599 | } | |
5600 | ||
5601 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
5602 | * This is a paranoid check, because we would not have gotten the | |
5603 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 5604 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5605 | /* Runtime instruction load was bad; |
5606 | * take it all the way back down so we can try again */ | |
5607 | IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n"); | |
5608 | goto restart; | |
5609 | } | |
5610 | ||
5611 | /* Send pointers to protocol/runtime uCode image ... init code will | |
5612 | * load and launch runtime uCode, which will send us another "Alive" | |
5613 | * notification. */ | |
5614 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
bb8c093b | 5615 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
5616 | /* Runtime instruction load won't happen; |
5617 | * take it all the way back down so we can try again */ | |
5618 | IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n"); | |
5619 | goto restart; | |
5620 | } | |
5621 | return; | |
5622 | ||
5623 | restart: | |
5624 | queue_work(priv->workqueue, &priv->restart); | |
5625 | } | |
5626 | ||
5627 | ||
9bdf5eca MA |
5628 | /* temporary */ |
5629 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, | |
5630 | struct sk_buff *skb); | |
5631 | ||
b481de9c | 5632 | /** |
bb8c093b | 5633 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 5634 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 5635 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 5636 | */ |
bb8c093b | 5637 | static void iwl3945_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5638 | { |
5639 | int rc = 0; | |
5640 | int thermal_spin = 0; | |
5641 | u32 rfkill; | |
5642 | ||
5643 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
5644 | ||
5645 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
5646 | /* We had an error bringing up the hardware, so take it | |
5647 | * all the way back down so we can try again */ | |
5648 | IWL_DEBUG_INFO("Alive failed.\n"); | |
5649 | goto restart; | |
5650 | } | |
5651 | ||
5652 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
5653 | * This is a paranoid check, because we would not have gotten the | |
5654 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 5655 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5656 | /* Runtime instruction load was bad; |
5657 | * take it all the way back down so we can try again */ | |
5658 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
5659 | goto restart; | |
5660 | } | |
5661 | ||
bb8c093b | 5662 | iwl3945_clear_stations_table(priv); |
b481de9c | 5663 | |
bb8c093b | 5664 | rc = iwl3945_grab_nic_access(priv); |
b481de9c | 5665 | if (rc) { |
a96a27f9 | 5666 | IWL_WARNING("Can not read RFKILL status from adapter\n"); |
b481de9c ZY |
5667 | return; |
5668 | } | |
5669 | ||
bb8c093b | 5670 | rfkill = iwl3945_read_prph(priv, APMG_RFKILL_REG); |
b481de9c | 5671 | IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill); |
bb8c093b | 5672 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5673 | |
5674 | if (rfkill & 0x1) { | |
5675 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a96a27f9 | 5676 | /* if RFKILL is not on, then wait for thermal |
b481de9c | 5677 | * sensor in adapter to kick in */ |
bb8c093b | 5678 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
5679 | thermal_spin++; |
5680 | udelay(10); | |
5681 | } | |
5682 | ||
5683 | if (thermal_spin) | |
5684 | IWL_DEBUG_INFO("Thermal calibration took %dus\n", | |
5685 | thermal_spin * 10); | |
5686 | } else | |
5687 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5688 | ||
9fbab516 | 5689 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
5690 | set_bit(STATUS_ALIVE, &priv->status); |
5691 | ||
5692 | /* Clear out the uCode error bit if it is set */ | |
5693 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
5694 | ||
bb8c093b | 5695 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
5696 | return; |
5697 | ||
36d6825b | 5698 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
5699 | |
5700 | priv->active_rate = priv->rates_mask; | |
5701 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
5702 | ||
bb8c093b | 5703 | iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode)); |
b481de9c | 5704 | |
bb8c093b CH |
5705 | if (iwl3945_is_associated(priv)) { |
5706 | struct iwl3945_rxon_cmd *active_rxon = | |
5707 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); | |
b481de9c ZY |
5708 | |
5709 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
5710 | sizeof(priv->staging_rxon)); | |
5711 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5712 | } else { | |
5713 | /* Initialize our rx_config data */ | |
60294de3 | 5714 | iwl3945_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
5715 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
5716 | } | |
5717 | ||
9fbab516 | 5718 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 5719 | iwl3945_send_bt_config(priv); |
b481de9c ZY |
5720 | |
5721 | /* Configure the adapter for unassociated operation */ | |
bb8c093b | 5722 | iwl3945_commit_rxon(priv); |
b481de9c | 5723 | |
b481de9c ZY |
5724 | iwl3945_reg_txpower_periodic(priv); |
5725 | ||
fe00b5a5 RC |
5726 | iwl3945_led_register(priv); |
5727 | ||
b481de9c | 5728 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 5729 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 5730 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
5731 | |
5732 | if (priv->error_recovering) | |
bb8c093b | 5733 | iwl3945_error_recovery(priv); |
b481de9c | 5734 | |
9bdf5eca MA |
5735 | /* reassociate for ADHOC mode */ |
5736 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
5737 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
5738 | priv->vif); | |
5739 | if (beacon) | |
5740 | iwl3945_mac_beacon_update(priv->hw, beacon); | |
5741 | } | |
5742 | ||
b481de9c ZY |
5743 | return; |
5744 | ||
5745 | restart: | |
5746 | queue_work(priv->workqueue, &priv->restart); | |
5747 | } | |
5748 | ||
bb8c093b | 5749 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv); |
b481de9c | 5750 | |
bb8c093b | 5751 | static void __iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5752 | { |
5753 | unsigned long flags; | |
5754 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
5755 | struct ieee80211_conf *conf = NULL; | |
5756 | ||
5757 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
5758 | ||
5759 | conf = ieee80211_get_hw_conf(priv->hw); | |
5760 | ||
5761 | if (!exit_pending) | |
5762 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5763 | ||
ab53d8af | 5764 | iwl3945_led_unregister(priv); |
bb8c093b | 5765 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
5766 | |
5767 | /* Unblock any waiting calls */ | |
5768 | wake_up_interruptible_all(&priv->wait_command_queue); | |
5769 | ||
b481de9c ZY |
5770 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
5771 | * exiting the module */ | |
5772 | if (!exit_pending) | |
5773 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
5774 | ||
5775 | /* stop and reset the on-board processor */ | |
bb8c093b | 5776 | iwl3945_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
5777 | |
5778 | /* tell the device to stop sending interrupts */ | |
0359facc | 5779 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 5780 | iwl3945_disable_interrupts(priv); |
0359facc MA |
5781 | spin_unlock_irqrestore(&priv->lock, flags); |
5782 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
5783 | |
5784 | if (priv->mac80211_registered) | |
5785 | ieee80211_stop_queues(priv->hw); | |
5786 | ||
bb8c093b | 5787 | /* If we have not previously called iwl3945_init() then |
b481de9c | 5788 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
bb8c093b | 5789 | if (!iwl3945_is_init(priv)) { |
b481de9c ZY |
5790 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
5791 | STATUS_RF_KILL_HW | | |
5792 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5793 | STATUS_RF_KILL_SW | | |
9788864e RC |
5794 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5795 | STATUS_GEO_CONFIGURED | | |
b481de9c | 5796 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
ebef2008 AK |
5797 | STATUS_IN_SUSPEND | |
5798 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5799 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5800 | goto exit; |
5801 | } | |
5802 | ||
5803 | /* ...otherwise clear out all the status bits but the RF Kill and | |
5804 | * SUSPEND bits and continue taking the NIC down. */ | |
5805 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
5806 | STATUS_RF_KILL_HW | | |
5807 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5808 | STATUS_RF_KILL_SW | | |
9788864e RC |
5809 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5810 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
5811 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
5812 | STATUS_IN_SUSPEND | | |
5813 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
ebef2008 AK |
5814 | STATUS_FW_ERROR | |
5815 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5816 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5817 | |
5818 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5819 | iwl3945_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
5820 | spin_unlock_irqrestore(&priv->lock, flags); |
5821 | ||
bb8c093b CH |
5822 | iwl3945_hw_txq_ctx_stop(priv); |
5823 | iwl3945_hw_rxq_stop(priv); | |
b481de9c ZY |
5824 | |
5825 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
5826 | if (!iwl3945_grab_nic_access(priv)) { |
5827 | iwl3945_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 5828 | APMG_CLK_VAL_DMA_CLK_RQT); |
bb8c093b | 5829 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5830 | } |
5831 | spin_unlock_irqrestore(&priv->lock, flags); | |
5832 | ||
5833 | udelay(5); | |
5834 | ||
bb8c093b CH |
5835 | iwl3945_hw_nic_stop_master(priv); |
5836 | iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); | |
5837 | iwl3945_hw_nic_reset(priv); | |
b481de9c ZY |
5838 | |
5839 | exit: | |
bb8c093b | 5840 | memset(&priv->card_alive, 0, sizeof(struct iwl3945_alive_resp)); |
b481de9c ZY |
5841 | |
5842 | if (priv->ibss_beacon) | |
5843 | dev_kfree_skb(priv->ibss_beacon); | |
5844 | priv->ibss_beacon = NULL; | |
5845 | ||
5846 | /* clear out any free frames */ | |
bb8c093b | 5847 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
5848 | } |
5849 | ||
bb8c093b | 5850 | static void iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5851 | { |
5852 | mutex_lock(&priv->mutex); | |
bb8c093b | 5853 | __iwl3945_down(priv); |
b481de9c | 5854 | mutex_unlock(&priv->mutex); |
b24d22b1 | 5855 | |
bb8c093b | 5856 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
5857 | } |
5858 | ||
5859 | #define MAX_HW_RESTARTS 5 | |
5860 | ||
bb8c093b | 5861 | static int __iwl3945_up(struct iwl3945_priv *priv) |
b481de9c ZY |
5862 | { |
5863 | int rc, i; | |
5864 | ||
5865 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
5866 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
5867 | return -EIO; | |
5868 | } | |
5869 | ||
5870 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
5871 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
5872 | "parameter)\n"); | |
e655b9f0 ZY |
5873 | return -ENODEV; |
5874 | } | |
5875 | ||
e903fbd4 | 5876 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
a96a27f9 | 5877 | IWL_ERROR("ucode not available for device bring up\n"); |
e903fbd4 RC |
5878 | return -EIO; |
5879 | } | |
5880 | ||
e655b9f0 ZY |
5881 | /* If platform's RF_KILL switch is NOT set to KILL */ |
5882 | if (iwl3945_read32(priv, CSR_GP_CNTRL) & | |
5883 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
5884 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
5885 | else { | |
5886 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5887 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
5888 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); | |
5889 | return -ENODEV; | |
5890 | } | |
b481de9c | 5891 | } |
80fcc9e2 | 5892 | |
bb8c093b | 5893 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 5894 | |
bb8c093b | 5895 | rc = iwl3945_hw_nic_init(priv); |
b481de9c ZY |
5896 | if (rc) { |
5897 | IWL_ERROR("Unable to int nic\n"); | |
5898 | return rc; | |
5899 | } | |
5900 | ||
5901 | /* make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
5902 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
5903 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
5904 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
5905 | ||
5906 | /* clear (again), then enable host interrupts */ | |
bb8c093b CH |
5907 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
5908 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
5909 | |
5910 | /* really make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
5911 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
5912 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
5913 | |
5914 | /* Copy original ucode data image from disk into backup cache. | |
5915 | * This will be used to initialize the on-board processor's | |
5916 | * data SRAM for a clean start when the runtime program first loads. */ | |
5917 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 5918 | priv->ucode_data.len); |
b481de9c | 5919 | |
e655b9f0 ZY |
5920 | /* We return success when we resume from suspend and rf_kill is on. */ |
5921 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
5922 | return 0; | |
5923 | ||
b481de9c ZY |
5924 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
5925 | ||
bb8c093b | 5926 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
5927 | |
5928 | /* load bootstrap state machine, | |
5929 | * load bootstrap program into processor's memory, | |
5930 | * prepare to load the "initialize" uCode */ | |
bb8c093b | 5931 | rc = iwl3945_load_bsm(priv); |
b481de9c ZY |
5932 | |
5933 | if (rc) { | |
5934 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc); | |
5935 | continue; | |
5936 | } | |
5937 | ||
5938 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 5939 | iwl3945_nic_start(priv); |
b481de9c | 5940 | |
b481de9c ZY |
5941 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
5942 | ||
5943 | return 0; | |
5944 | } | |
5945 | ||
5946 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 5947 | __iwl3945_down(priv); |
ebef2008 | 5948 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
5949 | |
5950 | /* tried to restart and config the device for as long as our | |
5951 | * patience could withstand */ | |
5952 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
5953 | return -EIO; | |
5954 | } | |
5955 | ||
5956 | ||
5957 | /***************************************************************************** | |
5958 | * | |
5959 | * Workqueue callbacks | |
5960 | * | |
5961 | *****************************************************************************/ | |
5962 | ||
bb8c093b | 5963 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 5964 | { |
bb8c093b CH |
5965 | struct iwl3945_priv *priv = |
5966 | container_of(data, struct iwl3945_priv, init_alive_start.work); | |
b481de9c ZY |
5967 | |
5968 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5969 | return; | |
5970 | ||
5971 | mutex_lock(&priv->mutex); | |
bb8c093b | 5972 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
5973 | mutex_unlock(&priv->mutex); |
5974 | } | |
5975 | ||
bb8c093b | 5976 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 5977 | { |
bb8c093b CH |
5978 | struct iwl3945_priv *priv = |
5979 | container_of(data, struct iwl3945_priv, alive_start.work); | |
b481de9c ZY |
5980 | |
5981 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5982 | return; | |
5983 | ||
5984 | mutex_lock(&priv->mutex); | |
bb8c093b | 5985 | iwl3945_alive_start(priv); |
b481de9c ZY |
5986 | mutex_unlock(&priv->mutex); |
5987 | } | |
5988 | ||
bb8c093b | 5989 | static void iwl3945_bg_rf_kill(struct work_struct *work) |
b481de9c | 5990 | { |
bb8c093b | 5991 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, rf_kill); |
b481de9c ZY |
5992 | |
5993 | wake_up_interruptible(&priv->wait_command_queue); | |
5994 | ||
5995 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5996 | return; | |
5997 | ||
5998 | mutex_lock(&priv->mutex); | |
5999 | ||
bb8c093b | 6000 | if (!iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6001 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL, |
6002 | "HW and/or SW RF Kill no longer active, restarting " | |
6003 | "device\n"); | |
6004 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6005 | queue_work(priv->workqueue, &priv->restart); | |
6006 | } else { | |
6007 | ||
6008 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
6009 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
6010 | "disabled by SW switch\n"); | |
6011 | else | |
6012 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
6013 | "Kill switch must be turned off for " | |
6014 | "wireless networking to work.\n"); | |
6015 | } | |
ebef2008 | 6016 | |
b481de9c | 6017 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 6018 | iwl3945_rfkill_set_hw_state(priv); |
b481de9c ZY |
6019 | } |
6020 | ||
6021 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) | |
6022 | ||
bb8c093b | 6023 | static void iwl3945_bg_scan_check(struct work_struct *data) |
b481de9c | 6024 | { |
bb8c093b CH |
6025 | struct iwl3945_priv *priv = |
6026 | container_of(data, struct iwl3945_priv, scan_check.work); | |
b481de9c ZY |
6027 | |
6028 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6029 | return; | |
6030 | ||
6031 | mutex_lock(&priv->mutex); | |
6032 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
6033 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6034 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, | |
6035 | "Scan completion watchdog resetting adapter (%dms)\n", | |
6036 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
15e869d8 | 6037 | |
b481de9c | 6038 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 6039 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6040 | } |
6041 | mutex_unlock(&priv->mutex); | |
6042 | } | |
6043 | ||
bb8c093b | 6044 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 6045 | { |
bb8c093b CH |
6046 | struct iwl3945_priv *priv = |
6047 | container_of(data, struct iwl3945_priv, request_scan); | |
6048 | struct iwl3945_host_cmd cmd = { | |
b481de9c | 6049 | .id = REPLY_SCAN_CMD, |
bb8c093b | 6050 | .len = sizeof(struct iwl3945_scan_cmd), |
b481de9c ZY |
6051 | .meta.flags = CMD_SIZE_HUGE, |
6052 | }; | |
6053 | int rc = 0; | |
bb8c093b | 6054 | struct iwl3945_scan_cmd *scan; |
b481de9c | 6055 | struct ieee80211_conf *conf = NULL; |
f9340520 | 6056 | u8 n_probes = 2; |
8318d78a | 6057 | enum ieee80211_band band; |
9387b7ca | 6058 | DECLARE_SSID_BUF(ssid); |
b481de9c ZY |
6059 | |
6060 | conf = ieee80211_get_hw_conf(priv->hw); | |
6061 | ||
6062 | mutex_lock(&priv->mutex); | |
6063 | ||
bb8c093b | 6064 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
6065 | IWL_WARNING("request scan called when driver not ready.\n"); |
6066 | goto done; | |
6067 | } | |
6068 | ||
a96a27f9 | 6069 | /* Make sure the scan wasn't canceled before this queued work |
b481de9c ZY |
6070 | * was given the chance to run... */ |
6071 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
6072 | goto done; | |
6073 | ||
6074 | /* This should never be called or scheduled if there is currently | |
6075 | * a scan active in the hardware. */ | |
6076 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
6077 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
6078 | "Ignoring second request.\n"); | |
6079 | rc = -EIO; | |
6080 | goto done; | |
6081 | } | |
6082 | ||
6083 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
6084 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
6085 | goto done; | |
6086 | } | |
6087 | ||
6088 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6089 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
6090 | goto done; | |
6091 | } | |
6092 | ||
bb8c093b | 6093 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6094 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
6095 | goto done; | |
6096 | } | |
6097 | ||
6098 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6099 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
6100 | goto done; | |
6101 | } | |
6102 | ||
6103 | if (!priv->scan_bands) { | |
6104 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
6105 | goto done; | |
6106 | } | |
6107 | ||
6108 | if (!priv->scan) { | |
bb8c093b | 6109 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + |
b481de9c ZY |
6110 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
6111 | if (!priv->scan) { | |
6112 | rc = -ENOMEM; | |
6113 | goto done; | |
6114 | } | |
6115 | } | |
6116 | scan = priv->scan; | |
bb8c093b | 6117 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
6118 | |
6119 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
6120 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
6121 | ||
bb8c093b | 6122 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
6123 | u16 interval = 0; |
6124 | u32 extra; | |
6125 | u32 suspend_time = 100; | |
6126 | u32 scan_suspend_time = 100; | |
6127 | unsigned long flags; | |
6128 | ||
6129 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
6130 | ||
6131 | spin_lock_irqsave(&priv->lock, flags); | |
6132 | interval = priv->beacon_int; | |
6133 | spin_unlock_irqrestore(&priv->lock, flags); | |
6134 | ||
6135 | scan->suspend_time = 0; | |
15e869d8 | 6136 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
6137 | if (!interval) |
6138 | interval = suspend_time; | |
6139 | /* | |
6140 | * suspend time format: | |
6141 | * 0-19: beacon interval in usec (time before exec.) | |
6142 | * 20-23: 0 | |
6143 | * 24-31: number of beacons (suspend between channels) | |
6144 | */ | |
6145 | ||
6146 | extra = (suspend_time / interval) << 24; | |
6147 | scan_suspend_time = 0xFF0FFFFF & | |
6148 | (extra | ((suspend_time % interval) * 1024)); | |
6149 | ||
6150 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
6151 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
6152 | scan_suspend_time, interval); | |
6153 | } | |
6154 | ||
6155 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
6156 | if (priv->one_direct_scan) { | |
6157 | IWL_DEBUG_SCAN | |
6158 | ("Kicking off one direct scan for '%s'\n", | |
9387b7ca JL |
6159 | print_ssid(ssid, priv->direct_ssid, |
6160 | priv->direct_ssid_len)); | |
b481de9c ZY |
6161 | scan->direct_scan[0].id = WLAN_EID_SSID; |
6162 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
6163 | memcpy(scan->direct_scan[0].ssid, | |
6164 | priv->direct_ssid, priv->direct_ssid_len); | |
f9340520 | 6165 | n_probes++; |
f9340520 | 6166 | } else |
786b4557 | 6167 | IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); |
b481de9c ZY |
6168 | |
6169 | /* We don't build a direct scan probe request; the uCode will do | |
6170 | * that based on the direct_mask added to each channel entry */ | |
6171 | scan->tx_cmd.len = cpu_to_le16( | |
bb8c093b | 6172 | iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data, |
430cfe95 | 6173 | IWL_MAX_SCAN_SIZE - sizeof(*scan))); |
b481de9c ZY |
6174 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
6175 | scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id; | |
6176 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
6177 | ||
6178 | /* flags + rate selection */ | |
6179 | ||
66b5004d | 6180 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
b481de9c ZY |
6181 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
6182 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
6183 | scan->good_CRC_th = 0; | |
8318d78a | 6184 | band = IEEE80211_BAND_2GHZ; |
66b5004d | 6185 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
b481de9c ZY |
6186 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
6187 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 6188 | band = IEEE80211_BAND_5GHZ; |
66b5004d | 6189 | } else { |
b481de9c ZY |
6190 | IWL_WARNING("Invalid scan band count\n"); |
6191 | goto done; | |
6192 | } | |
6193 | ||
6194 | /* select Rx antennas */ | |
6195 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
6196 | ||
05c914fe | 6197 | if (priv->iw_mode == NL80211_IFTYPE_MONITOR) |
b481de9c ZY |
6198 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; |
6199 | ||
f9340520 AK |
6200 | scan->channel_count = |
6201 | iwl3945_get_channels_for_scan(priv, band, 1, /* active */ | |
6202 | n_probes, | |
6203 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c | 6204 | |
14b54336 RC |
6205 | if (scan->channel_count == 0) { |
6206 | IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count); | |
6207 | goto done; | |
6208 | } | |
6209 | ||
b481de9c | 6210 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 6211 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
6212 | cmd.data = scan; |
6213 | scan->len = cpu_to_le16(cmd.len); | |
6214 | ||
6215 | set_bit(STATUS_SCAN_HW, &priv->status); | |
bb8c093b | 6216 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
6217 | if (rc) |
6218 | goto done; | |
6219 | ||
6220 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
6221 | IWL_SCAN_CHECK_WATCHDOG); | |
6222 | ||
6223 | mutex_unlock(&priv->mutex); | |
6224 | return; | |
6225 | ||
6226 | done: | |
2420ebc1 MA |
6227 | /* can not perform scan make sure we clear scanning |
6228 | * bits from status so next scan request can be performed. | |
6229 | * if we dont clear scanning status bit here all next scan | |
6230 | * will fail | |
6231 | */ | |
6232 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
6233 | clear_bit(STATUS_SCANNING, &priv->status); | |
6234 | ||
01ebd063 | 6235 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
6236 | queue_work(priv->workqueue, &priv->scan_completed); |
6237 | mutex_unlock(&priv->mutex); | |
6238 | } | |
6239 | ||
bb8c093b | 6240 | static void iwl3945_bg_up(struct work_struct *data) |
b481de9c | 6241 | { |
bb8c093b | 6242 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, up); |
b481de9c ZY |
6243 | |
6244 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6245 | return; | |
6246 | ||
6247 | mutex_lock(&priv->mutex); | |
bb8c093b | 6248 | __iwl3945_up(priv); |
b481de9c | 6249 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 6250 | iwl3945_rfkill_set_hw_state(priv); |
b481de9c ZY |
6251 | } |
6252 | ||
bb8c093b | 6253 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 6254 | { |
bb8c093b | 6255 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, restart); |
b481de9c ZY |
6256 | |
6257 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6258 | return; | |
6259 | ||
bb8c093b | 6260 | iwl3945_down(priv); |
b481de9c ZY |
6261 | queue_work(priv->workqueue, &priv->up); |
6262 | } | |
6263 | ||
bb8c093b | 6264 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 6265 | { |
bb8c093b CH |
6266 | struct iwl3945_priv *priv = |
6267 | container_of(data, struct iwl3945_priv, rx_replenish); | |
b481de9c ZY |
6268 | |
6269 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6270 | return; | |
6271 | ||
6272 | mutex_lock(&priv->mutex); | |
bb8c093b | 6273 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
6274 | mutex_unlock(&priv->mutex); |
6275 | } | |
6276 | ||
7878a5a4 MA |
6277 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
6278 | ||
cd56d331 | 6279 | static void iwl3945_post_associate(struct iwl3945_priv *priv) |
b481de9c | 6280 | { |
b481de9c ZY |
6281 | int rc = 0; |
6282 | struct ieee80211_conf *conf = NULL; | |
6283 | ||
05c914fe | 6284 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
3ac7f146 | 6285 | IWL_ERROR("%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
6286 | return; |
6287 | } | |
6288 | ||
6289 | ||
e174961c JB |
6290 | IWL_DEBUG_ASSOC("Associated as %d to: %pM\n", |
6291 | priv->assoc_id, priv->active_rxon.bssid_addr); | |
b481de9c ZY |
6292 | |
6293 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6294 | return; | |
6295 | ||
322a9811 | 6296 | if (!priv->vif || !priv->is_open) |
6ef89d0a | 6297 | return; |
322a9811 | 6298 | |
bb8c093b | 6299 | iwl3945_scan_cancel_timeout(priv, 200); |
15e869d8 | 6300 | |
b481de9c ZY |
6301 | conf = ieee80211_get_hw_conf(priv->hw); |
6302 | ||
6303 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6304 | iwl3945_commit_rxon(priv); |
b481de9c | 6305 | |
bb8c093b CH |
6306 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6307 | iwl3945_setup_rxon_timing(priv); | |
6308 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6309 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6310 | if (rc) | |
6311 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6312 | "Attempting to continue.\n"); | |
6313 | ||
6314 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
6315 | ||
6316 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6317 | ||
6318 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
6319 | priv->assoc_id, priv->beacon_int); | |
6320 | ||
6321 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6322 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6323 | else | |
6324 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6325 | ||
6326 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6327 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6328 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
6329 | else | |
6330 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
6331 | ||
05c914fe | 6332 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
6333 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
6334 | ||
6335 | } | |
6336 | ||
bb8c093b | 6337 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6338 | |
6339 | switch (priv->iw_mode) { | |
05c914fe | 6340 | case NL80211_IFTYPE_STATION: |
bb8c093b | 6341 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
6342 | break; |
6343 | ||
05c914fe | 6344 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 6345 | |
ce546fd2 | 6346 | priv->assoc_id = 1; |
bb8c093b | 6347 | iwl3945_add_station(priv, priv->bssid, 0, 0); |
b481de9c | 6348 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 6349 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
6350 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
6351 | CMD_ASYNC); | |
bb8c093b CH |
6352 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
6353 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
6354 | |
6355 | break; | |
6356 | ||
6357 | default: | |
6358 | IWL_ERROR("%s Should not be called in %d mode\n", | |
3ac7f146 | 6359 | __func__, priv->iw_mode); |
b481de9c ZY |
6360 | break; |
6361 | } | |
6362 | ||
bb8c093b | 6363 | iwl3945_activate_qos(priv, 0); |
292ae174 | 6364 | |
7878a5a4 MA |
6365 | /* we have just associated, don't start scan too early */ |
6366 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
cd56d331 AK |
6367 | } |
6368 | ||
bb8c093b | 6369 | static void iwl3945_bg_abort_scan(struct work_struct *work) |
b481de9c | 6370 | { |
bb8c093b | 6371 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, abort_scan); |
b481de9c | 6372 | |
bb8c093b | 6373 | if (!iwl3945_is_ready(priv)) |
b481de9c ZY |
6374 | return; |
6375 | ||
6376 | mutex_lock(&priv->mutex); | |
6377 | ||
6378 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 6379 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6380 | |
6381 | mutex_unlock(&priv->mutex); | |
6382 | } | |
6383 | ||
e8975581 | 6384 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed); |
76bb77e0 | 6385 | |
bb8c093b | 6386 | static void iwl3945_bg_scan_completed(struct work_struct *work) |
b481de9c | 6387 | { |
bb8c093b CH |
6388 | struct iwl3945_priv *priv = |
6389 | container_of(work, struct iwl3945_priv, scan_completed); | |
b481de9c ZY |
6390 | |
6391 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n"); | |
6392 | ||
6393 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6394 | return; | |
6395 | ||
a0646470 | 6396 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
e8975581 | 6397 | iwl3945_mac_config(priv->hw, 0); |
76bb77e0 | 6398 | |
b481de9c ZY |
6399 | ieee80211_scan_completed(priv->hw); |
6400 | ||
6401 | /* Since setting the TXPOWER may have been deferred while | |
6402 | * performing the scan, fire one off */ | |
6403 | mutex_lock(&priv->mutex); | |
bb8c093b | 6404 | iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
6405 | mutex_unlock(&priv->mutex); |
6406 | } | |
6407 | ||
6408 | /***************************************************************************** | |
6409 | * | |
6410 | * mac80211 entry point functions | |
6411 | * | |
6412 | *****************************************************************************/ | |
6413 | ||
5a66926a ZY |
6414 | #define UCODE_READY_TIMEOUT (2 * HZ) |
6415 | ||
bb8c093b | 6416 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 6417 | { |
bb8c093b | 6418 | struct iwl3945_priv *priv = hw->priv; |
5a66926a | 6419 | int ret; |
b481de9c ZY |
6420 | |
6421 | IWL_DEBUG_MAC80211("enter\n"); | |
6422 | ||
5a66926a ZY |
6423 | if (pci_enable_device(priv->pci_dev)) { |
6424 | IWL_ERROR("Fail to pci_enable_device\n"); | |
6425 | return -ENODEV; | |
6426 | } | |
6427 | pci_restore_state(priv->pci_dev); | |
6428 | pci_enable_msi(priv->pci_dev); | |
6429 | ||
6430 | ret = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED, | |
6431 | DRV_NAME, priv); | |
6432 | if (ret) { | |
6433 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
6434 | goto out_disable_msi; | |
6435 | } | |
6436 | ||
b481de9c ZY |
6437 | /* we should be verifying the device is ready to be opened */ |
6438 | mutex_lock(&priv->mutex); | |
6439 | ||
5a66926a ZY |
6440 | memset(&priv->staging_rxon, 0, sizeof(struct iwl3945_rxon_cmd)); |
6441 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... | |
6442 | * ucode filename and max sizes are card-specific. */ | |
6443 | ||
6444 | if (!priv->ucode_code.len) { | |
6445 | ret = iwl3945_read_ucode(priv); | |
6446 | if (ret) { | |
6447 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
6448 | mutex_unlock(&priv->mutex); | |
6449 | goto out_release_irq; | |
6450 | } | |
6451 | } | |
b481de9c | 6452 | |
e655b9f0 | 6453 | ret = __iwl3945_up(priv); |
b481de9c ZY |
6454 | |
6455 | mutex_unlock(&priv->mutex); | |
5a66926a | 6456 | |
80fcc9e2 AG |
6457 | iwl3945_rfkill_set_hw_state(priv); |
6458 | ||
e655b9f0 ZY |
6459 | if (ret) |
6460 | goto out_release_irq; | |
6461 | ||
6462 | IWL_DEBUG_INFO("Start UP work.\n"); | |
6463 | ||
6464 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
6465 | return 0; | |
6466 | ||
5a66926a ZY |
6467 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
6468 | * mac80211 will not be run successfully. */ | |
6469 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
6470 | test_bit(STATUS_READY, &priv->status), | |
6471 | UCODE_READY_TIMEOUT); | |
6472 | if (!ret) { | |
6473 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6474 | IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n", | |
6475 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
6476 | ret = -ETIMEDOUT; | |
6477 | goto out_release_irq; | |
6478 | } | |
6479 | } | |
6480 | ||
e655b9f0 | 6481 | priv->is_open = 1; |
b481de9c ZY |
6482 | IWL_DEBUG_MAC80211("leave\n"); |
6483 | return 0; | |
5a66926a ZY |
6484 | |
6485 | out_release_irq: | |
6486 | free_irq(priv->pci_dev->irq, priv); | |
6487 | out_disable_msi: | |
6488 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
6489 | pci_disable_device(priv->pci_dev); |
6490 | priv->is_open = 0; | |
6491 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 6492 | return ret; |
b481de9c ZY |
6493 | } |
6494 | ||
bb8c093b | 6495 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 6496 | { |
bb8c093b | 6497 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6498 | |
6499 | IWL_DEBUG_MAC80211("enter\n"); | |
6ef89d0a | 6500 | |
e655b9f0 ZY |
6501 | if (!priv->is_open) { |
6502 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
6503 | return; | |
6504 | } | |
6505 | ||
b481de9c | 6506 | priv->is_open = 0; |
5a66926a ZY |
6507 | |
6508 | if (iwl3945_is_ready_rf(priv)) { | |
e655b9f0 ZY |
6509 | /* stop mac, cancel any scan request and clear |
6510 | * RXON_FILTER_ASSOC_MSK BIT | |
6511 | */ | |
5a66926a ZY |
6512 | mutex_lock(&priv->mutex); |
6513 | iwl3945_scan_cancel_timeout(priv, 100); | |
fde3571f | 6514 | mutex_unlock(&priv->mutex); |
fde3571f MA |
6515 | } |
6516 | ||
5a66926a ZY |
6517 | iwl3945_down(priv); |
6518 | ||
6519 | flush_workqueue(priv->workqueue); | |
6520 | free_irq(priv->pci_dev->irq, priv); | |
6521 | pci_disable_msi(priv->pci_dev); | |
6522 | pci_save_state(priv->pci_dev); | |
6523 | pci_disable_device(priv->pci_dev); | |
6ef89d0a | 6524 | |
b481de9c | 6525 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6526 | } |
6527 | ||
e039fa4a | 6528 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 6529 | { |
bb8c093b | 6530 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6531 | |
6532 | IWL_DEBUG_MAC80211("enter\n"); | |
6533 | ||
b481de9c | 6534 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 6535 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 6536 | |
e039fa4a | 6537 | if (iwl3945_tx_skb(priv, skb)) |
b481de9c ZY |
6538 | dev_kfree_skb_any(skb); |
6539 | ||
6540 | IWL_DEBUG_MAC80211("leave\n"); | |
637f8837 | 6541 | return NETDEV_TX_OK; |
b481de9c ZY |
6542 | } |
6543 | ||
bb8c093b | 6544 | static int iwl3945_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6545 | struct ieee80211_if_init_conf *conf) |
6546 | { | |
bb8c093b | 6547 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6548 | unsigned long flags; |
6549 | ||
32bfd35d | 6550 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 6551 | |
32bfd35d JB |
6552 | if (priv->vif) { |
6553 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
864792e3 | 6554 | return -EOPNOTSUPP; |
b481de9c ZY |
6555 | } |
6556 | ||
6557 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 6558 | priv->vif = conf->vif; |
60294de3 | 6559 | priv->iw_mode = conf->type; |
b481de9c ZY |
6560 | |
6561 | spin_unlock_irqrestore(&priv->lock, flags); | |
6562 | ||
6563 | mutex_lock(&priv->mutex); | |
864792e3 TW |
6564 | |
6565 | if (conf->mac_addr) { | |
e174961c | 6566 | IWL_DEBUG_MAC80211("Set: %pM\n", conf->mac_addr); |
864792e3 TW |
6567 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
6568 | } | |
6569 | ||
5a66926a ZY |
6570 | if (iwl3945_is_ready(priv)) |
6571 | iwl3945_set_mode(priv, conf->type); | |
b481de9c | 6572 | |
b481de9c ZY |
6573 | mutex_unlock(&priv->mutex); |
6574 | ||
5a66926a | 6575 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6576 | return 0; |
6577 | } | |
6578 | ||
6579 | /** | |
bb8c093b | 6580 | * iwl3945_mac_config - mac80211 config callback |
b481de9c ZY |
6581 | * |
6582 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
6583 | * be set inappropriately and the driver currently sets the hardware up to | |
6584 | * use it whenever needed. | |
6585 | */ | |
e8975581 | 6586 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed) |
b481de9c | 6587 | { |
bb8c093b CH |
6588 | struct iwl3945_priv *priv = hw->priv; |
6589 | const struct iwl3945_channel_info *ch_info; | |
e8975581 | 6590 | struct ieee80211_conf *conf = &hw->conf; |
b481de9c | 6591 | unsigned long flags; |
76bb77e0 | 6592 | int ret = 0; |
b481de9c ZY |
6593 | |
6594 | mutex_lock(&priv->mutex); | |
8318d78a | 6595 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 6596 | |
bb8c093b | 6597 | if (!iwl3945_is_ready(priv)) { |
b481de9c | 6598 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
6599 | ret = -EIO; |
6600 | goto out; | |
b481de9c ZY |
6601 | } |
6602 | ||
bb8c093b | 6603 | if (unlikely(!iwl3945_param_disable_hw_scan && |
b481de9c | 6604 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
6605 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
6606 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 6607 | mutex_unlock(&priv->mutex); |
a0646470 | 6608 | return 0; |
b481de9c ZY |
6609 | } |
6610 | ||
6611 | spin_lock_irqsave(&priv->lock, flags); | |
6612 | ||
8318d78a JB |
6613 | ch_info = iwl3945_get_channel_info(priv, conf->channel->band, |
6614 | conf->channel->hw_value); | |
b481de9c | 6615 | if (!is_channel_valid(ch_info)) { |
66b5004d | 6616 | IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n", |
8318d78a | 6617 | conf->channel->hw_value, conf->channel->band); |
b481de9c ZY |
6618 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
6619 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
6620 | ret = -EINVAL; |
6621 | goto out; | |
b481de9c ZY |
6622 | } |
6623 | ||
8318d78a | 6624 | iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value); |
b481de9c | 6625 | |
8318d78a | 6626 | iwl3945_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
6627 | |
6628 | /* The list of supported rates and rate mask can be different | |
6629 | * for each phymode; since the phymode may have changed, reset | |
6630 | * the rate mask to what mac80211 lists */ | |
bb8c093b | 6631 | iwl3945_set_rate(priv); |
b481de9c ZY |
6632 | |
6633 | spin_unlock_irqrestore(&priv->lock, flags); | |
6634 | ||
6635 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
6636 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 6637 | iwl3945_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 6638 | goto out; |
b481de9c ZY |
6639 | } |
6640 | #endif | |
6641 | ||
bb8c093b | 6642 | iwl3945_radio_kill_sw(priv, !conf->radio_enabled); |
b481de9c ZY |
6643 | |
6644 | if (!conf->radio_enabled) { | |
6645 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 6646 | goto out; |
b481de9c ZY |
6647 | } |
6648 | ||
bb8c093b | 6649 | if (iwl3945_is_rfkill(priv)) { |
b481de9c | 6650 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
6651 | ret = -EIO; |
6652 | goto out; | |
b481de9c ZY |
6653 | } |
6654 | ||
bb8c093b | 6655 | iwl3945_set_rate(priv); |
b481de9c ZY |
6656 | |
6657 | if (memcmp(&priv->active_rxon, | |
6658 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 6659 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6660 | else |
6661 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
6662 | ||
6663 | IWL_DEBUG_MAC80211("leave\n"); | |
6664 | ||
76bb77e0 | 6665 | out: |
a0646470 | 6666 | clear_bit(STATUS_CONF_PENDING, &priv->status); |
b481de9c | 6667 | mutex_unlock(&priv->mutex); |
76bb77e0 | 6668 | return ret; |
b481de9c ZY |
6669 | } |
6670 | ||
bb8c093b | 6671 | static void iwl3945_config_ap(struct iwl3945_priv *priv) |
b481de9c ZY |
6672 | { |
6673 | int rc = 0; | |
6674 | ||
d986bcd1 | 6675 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
6676 | return; |
6677 | ||
6678 | /* The following should be done only at AP bring up */ | |
5d1e2325 | 6679 | if (!(iwl3945_is_associated(priv))) { |
b481de9c ZY |
6680 | |
6681 | /* RXON - unassoc (to set timing command) */ | |
6682 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6683 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6684 | |
6685 | /* RXON Timing */ | |
bb8c093b CH |
6686 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6687 | iwl3945_setup_rxon_timing(priv); | |
6688 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6689 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6690 | if (rc) | |
6691 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6692 | "Attempting to continue.\n"); | |
6693 | ||
6694 | /* FIXME: what should be the assoc_id for AP? */ | |
6695 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6696 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6697 | priv->staging_rxon.flags |= | |
6698 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
6699 | else | |
6700 | priv->staging_rxon.flags &= | |
6701 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6702 | ||
6703 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6704 | if (priv->assoc_capability & | |
6705 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6706 | priv->staging_rxon.flags |= | |
6707 | RXON_FLG_SHORT_SLOT_MSK; | |
6708 | else | |
6709 | priv->staging_rxon.flags &= | |
6710 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6711 | ||
05c914fe | 6712 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
6713 | priv->staging_rxon.flags &= |
6714 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6715 | } | |
6716 | /* restore RXON assoc */ | |
6717 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b CH |
6718 | iwl3945_commit_rxon(priv); |
6719 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); | |
556f8db7 | 6720 | } |
bb8c093b | 6721 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
6722 | |
6723 | /* FIXME - we need to add code here to detect a totally new | |
6724 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
6725 | * clear sta table, add BCAST sta... */ | |
6726 | } | |
6727 | ||
32bfd35d JB |
6728 | static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, |
6729 | struct ieee80211_vif *vif, | |
b481de9c ZY |
6730 | struct ieee80211_if_conf *conf) |
6731 | { | |
bb8c093b | 6732 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6733 | int rc; |
6734 | ||
6735 | if (conf == NULL) | |
6736 | return -EIO; | |
6737 | ||
b716bb91 EG |
6738 | if (priv->vif != vif) { |
6739 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
6740 | return 0; |
6741 | } | |
6742 | ||
9d139c81 | 6743 | /* handle this temporarily here */ |
05c914fe | 6744 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
9d139c81 JB |
6745 | conf->changed & IEEE80211_IFCC_BEACON) { |
6746 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); | |
6747 | if (!beacon) | |
6748 | return -ENOMEM; | |
9bdf5eca | 6749 | mutex_lock(&priv->mutex); |
9d139c81 | 6750 | rc = iwl3945_mac_beacon_update(hw, beacon); |
9bdf5eca | 6751 | mutex_unlock(&priv->mutex); |
9d139c81 JB |
6752 | if (rc) |
6753 | return rc; | |
6754 | } | |
6755 | ||
5a66926a ZY |
6756 | if (!iwl3945_is_alive(priv)) |
6757 | return -EAGAIN; | |
6758 | ||
b481de9c ZY |
6759 | mutex_lock(&priv->mutex); |
6760 | ||
b481de9c | 6761 | if (conf->bssid) |
e174961c | 6762 | IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid); |
b481de9c | 6763 | |
4150c572 JB |
6764 | /* |
6765 | * very dubious code was here; the probe filtering flag is never set: | |
6766 | * | |
b481de9c ZY |
6767 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
6768 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 6769 | */ |
b481de9c | 6770 | |
05c914fe | 6771 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
6772 | if (!conf->bssid) { |
6773 | conf->bssid = priv->mac_addr; | |
6774 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
e174961c JB |
6775 | IWL_DEBUG_MAC80211("bssid was set to: %pM\n", |
6776 | conf->bssid); | |
b481de9c ZY |
6777 | } |
6778 | if (priv->ibss_beacon) | |
6779 | dev_kfree_skb(priv->ibss_beacon); | |
6780 | ||
9d139c81 | 6781 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
b481de9c ZY |
6782 | } |
6783 | ||
fde3571f MA |
6784 | if (iwl3945_is_rfkill(priv)) |
6785 | goto done; | |
6786 | ||
b481de9c ZY |
6787 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
6788 | !is_multicast_ether_addr(conf->bssid)) { | |
6789 | /* If there is currently a HW scan going on in the background | |
6790 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 6791 | if (iwl3945_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
6792 | IWL_WARNING("Aborted scan still in progress " |
6793 | "after 100ms\n"); | |
6794 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
6795 | mutex_unlock(&priv->mutex); | |
6796 | return -EAGAIN; | |
6797 | } | |
6798 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
6799 | ||
6800 | /* TODO: Audit driver for usage of these members and see | |
6801 | * if mac80211 deprecates them (priv->bssid looks like it | |
6802 | * shouldn't be there, but I haven't scanned the IBSS code | |
6803 | * to verify) - jpk */ | |
6804 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
6805 | ||
05c914fe | 6806 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
bb8c093b | 6807 | iwl3945_config_ap(priv); |
b481de9c | 6808 | else { |
bb8c093b | 6809 | rc = iwl3945_commit_rxon(priv); |
05c914fe | 6810 | if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) |
bb8c093b | 6811 | iwl3945_add_station(priv, |
556f8db7 | 6812 | priv->active_rxon.bssid_addr, 1, 0); |
b481de9c ZY |
6813 | } |
6814 | ||
6815 | } else { | |
bb8c093b | 6816 | iwl3945_scan_cancel_timeout(priv, 100); |
b481de9c | 6817 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 6818 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6819 | } |
6820 | ||
fde3571f | 6821 | done: |
b481de9c ZY |
6822 | IWL_DEBUG_MAC80211("leave\n"); |
6823 | mutex_unlock(&priv->mutex); | |
6824 | ||
6825 | return 0; | |
6826 | } | |
6827 | ||
bb8c093b | 6828 | static void iwl3945_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
6829 | unsigned int changed_flags, |
6830 | unsigned int *total_flags, | |
6831 | int mc_count, struct dev_addr_list *mc_list) | |
6832 | { | |
5ec03976 | 6833 | struct iwl3945_priv *priv = hw->priv; |
352bc8de | 6834 | __le32 *filter_flags = &priv->staging_rxon.filter_flags; |
25b3f57c | 6835 | |
352bc8de ZY |
6836 | IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", |
6837 | changed_flags, *total_flags); | |
6838 | ||
6839 | if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) { | |
6840 | if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) | |
6841 | *filter_flags |= RXON_FILTER_PROMISC_MSK; | |
6842 | else | |
6843 | *filter_flags &= ~RXON_FILTER_PROMISC_MSK; | |
6844 | } | |
6845 | if (changed_flags & FIF_ALLMULTI) { | |
6846 | if (*total_flags & FIF_ALLMULTI) | |
6847 | *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK; | |
6848 | else | |
6849 | *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK; | |
6850 | } | |
6851 | if (changed_flags & FIF_CONTROL) { | |
6852 | if (*total_flags & FIF_CONTROL) | |
6853 | *filter_flags |= RXON_FILTER_CTL2HOST_MSK; | |
6854 | else | |
6855 | *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK; | |
5ec03976 | 6856 | } |
352bc8de ZY |
6857 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
6858 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) | |
6859 | *filter_flags |= RXON_FILTER_BCON_AWARE_MSK; | |
6860 | else | |
6861 | *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK; | |
6862 | } | |
6863 | ||
6864 | /* We avoid iwl_commit_rxon here to commit the new filter flags | |
6865 | * since mac80211 will call ieee80211_hw_config immediately. | |
6866 | * (mc_list is not supported at this time). Otherwise, we need to | |
6867 | * queue a background iwl_commit_rxon work. | |
6868 | */ | |
6869 | ||
6870 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
25b3f57c | 6871 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
4150c572 JB |
6872 | } |
6873 | ||
bb8c093b | 6874 | static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6875 | struct ieee80211_if_init_conf *conf) |
6876 | { | |
bb8c093b | 6877 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6878 | |
6879 | IWL_DEBUG_MAC80211("enter\n"); | |
6880 | ||
6881 | mutex_lock(&priv->mutex); | |
6ef89d0a | 6882 | |
fde3571f MA |
6883 | if (iwl3945_is_ready_rf(priv)) { |
6884 | iwl3945_scan_cancel_timeout(priv, 100); | |
fde3571f MA |
6885 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
6886 | iwl3945_commit_rxon(priv); | |
6887 | } | |
32bfd35d JB |
6888 | if (priv->vif == conf->vif) { |
6889 | priv->vif = NULL; | |
b481de9c | 6890 | memset(priv->bssid, 0, ETH_ALEN); |
b481de9c ZY |
6891 | } |
6892 | mutex_unlock(&priv->mutex); | |
6893 | ||
6894 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
6895 | } |
6896 | ||
cd56d331 AK |
6897 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
6898 | ||
6899 | static void iwl3945_bss_info_changed(struct ieee80211_hw *hw, | |
6900 | struct ieee80211_vif *vif, | |
6901 | struct ieee80211_bss_conf *bss_conf, | |
6902 | u32 changes) | |
6903 | { | |
6904 | struct iwl3945_priv *priv = hw->priv; | |
6905 | ||
6906 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); | |
6907 | ||
6908 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { | |
6909 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", | |
6910 | bss_conf->use_short_preamble); | |
6911 | if (bss_conf->use_short_preamble) | |
6912 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6913 | else | |
6914 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6915 | } | |
6916 | ||
6917 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { | |
6918 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); | |
6919 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) | |
6920 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; | |
6921 | else | |
6922 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
6923 | } | |
6924 | ||
6925 | if (changes & BSS_CHANGED_ASSOC) { | |
6926 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); | |
6927 | /* This should never happen as this function should | |
6928 | * never be called from interrupt context. */ | |
6929 | if (WARN_ON_ONCE(in_interrupt())) | |
6930 | return; | |
6931 | if (bss_conf->assoc) { | |
6932 | priv->assoc_id = bss_conf->aid; | |
6933 | priv->beacon_int = bss_conf->beacon_int; | |
6934 | priv->timestamp0 = bss_conf->timestamp & 0xFFFFFFFF; | |
6935 | priv->timestamp1 = (bss_conf->timestamp >> 32) & | |
6936 | 0xFFFFFFFF; | |
6937 | priv->assoc_capability = bss_conf->assoc_capability; | |
6938 | priv->next_scan_jiffies = jiffies + | |
6939 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
6940 | mutex_lock(&priv->mutex); | |
6941 | iwl3945_post_associate(priv); | |
6942 | mutex_unlock(&priv->mutex); | |
6943 | } else { | |
6944 | priv->assoc_id = 0; | |
6945 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
6946 | } | |
6947 | } else if (changes && iwl3945_is_associated(priv) && priv->assoc_id) { | |
6948 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
6949 | iwl3945_send_rxon_assoc(priv); | |
6950 | } | |
6951 | ||
6952 | } | |
6953 | ||
bb8c093b | 6954 | static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
6955 | { |
6956 | int rc = 0; | |
6957 | unsigned long flags; | |
bb8c093b | 6958 | struct iwl3945_priv *priv = hw->priv; |
9387b7ca | 6959 | DECLARE_SSID_BUF(ssid_buf); |
b481de9c ZY |
6960 | |
6961 | IWL_DEBUG_MAC80211("enter\n"); | |
6962 | ||
15e869d8 | 6963 | mutex_lock(&priv->mutex); |
b481de9c ZY |
6964 | spin_lock_irqsave(&priv->lock, flags); |
6965 | ||
bb8c093b | 6966 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
6967 | rc = -EIO; |
6968 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
6969 | goto out_unlock; | |
6970 | } | |
6971 | ||
7878a5a4 MA |
6972 | /* we don't schedule scan within next_scan_jiffies period */ |
6973 | if (priv->next_scan_jiffies && | |
6974 | time_after(priv->next_scan_jiffies, jiffies)) { | |
6975 | rc = -EAGAIN; | |
6976 | goto out_unlock; | |
6977 | } | |
15dbf1b7 BM |
6978 | /* if we just finished scan ask for delay for a broadcast scan */ |
6979 | if ((len == 0) && priv->last_scan_jiffies && | |
6980 | time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, | |
6981 | jiffies)) { | |
b481de9c ZY |
6982 | rc = -EAGAIN; |
6983 | goto out_unlock; | |
6984 | } | |
6985 | if (len) { | |
7878a5a4 | 6986 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
9387b7ca | 6987 | print_ssid(ssid_buf, ssid, len), (int)len); |
b481de9c ZY |
6988 | |
6989 | priv->one_direct_scan = 1; | |
6990 | priv->direct_ssid_len = (u8) | |
6991 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
6992 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
6ef89d0a MA |
6993 | } else |
6994 | priv->one_direct_scan = 0; | |
b481de9c | 6995 | |
bb8c093b | 6996 | rc = iwl3945_scan_initiate(priv); |
b481de9c ZY |
6997 | |
6998 | IWL_DEBUG_MAC80211("leave\n"); | |
6999 | ||
7000 | out_unlock: | |
7001 | spin_unlock_irqrestore(&priv->lock, flags); | |
15e869d8 | 7002 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
7003 | |
7004 | return rc; | |
7005 | } | |
7006 | ||
bb8c093b | 7007 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
7008 | const u8 *local_addr, const u8 *addr, |
7009 | struct ieee80211_key_conf *key) | |
7010 | { | |
bb8c093b | 7011 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7012 | int rc = 0; |
7013 | u8 sta_id; | |
7014 | ||
7015 | IWL_DEBUG_MAC80211("enter\n"); | |
7016 | ||
bb8c093b | 7017 | if (!iwl3945_param_hwcrypto) { |
b481de9c ZY |
7018 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
7019 | return -EOPNOTSUPP; | |
7020 | } | |
7021 | ||
7022 | if (is_zero_ether_addr(addr)) | |
7023 | /* only support pairwise keys */ | |
7024 | return -EOPNOTSUPP; | |
7025 | ||
bb8c093b | 7026 | sta_id = iwl3945_hw_find_station(priv, addr); |
b481de9c | 7027 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
7028 | IWL_DEBUG_MAC80211("leave - %pM not in station map.\n", |
7029 | addr); | |
b481de9c ZY |
7030 | return -EINVAL; |
7031 | } | |
7032 | ||
7033 | mutex_lock(&priv->mutex); | |
7034 | ||
bb8c093b | 7035 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7036 | |
b481de9c ZY |
7037 | switch (cmd) { |
7038 | case SET_KEY: | |
bb8c093b | 7039 | rc = iwl3945_update_sta_key_info(priv, key, sta_id); |
b481de9c | 7040 | if (!rc) { |
bb8c093b CH |
7041 | iwl3945_set_rxon_hwcrypto(priv, 1); |
7042 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7043 | key->hw_key_idx = sta_id; |
7044 | IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n"); | |
7045 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
7046 | } | |
7047 | break; | |
7048 | case DISABLE_KEY: | |
bb8c093b | 7049 | rc = iwl3945_clear_sta_key_info(priv, sta_id); |
b481de9c | 7050 | if (!rc) { |
bb8c093b CH |
7051 | iwl3945_set_rxon_hwcrypto(priv, 0); |
7052 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7053 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); |
7054 | } | |
7055 | break; | |
7056 | default: | |
7057 | rc = -EINVAL; | |
7058 | } | |
7059 | ||
7060 | IWL_DEBUG_MAC80211("leave\n"); | |
7061 | mutex_unlock(&priv->mutex); | |
7062 | ||
7063 | return rc; | |
7064 | } | |
7065 | ||
e100bb64 | 7066 | static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
7067 | const struct ieee80211_tx_queue_params *params) |
7068 | { | |
bb8c093b | 7069 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7070 | unsigned long flags; |
7071 | int q; | |
b481de9c ZY |
7072 | |
7073 | IWL_DEBUG_MAC80211("enter\n"); | |
7074 | ||
bb8c093b | 7075 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7076 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7077 | return -EIO; | |
7078 | } | |
7079 | ||
7080 | if (queue >= AC_NUM) { | |
7081 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
7082 | return 0; | |
7083 | } | |
7084 | ||
b481de9c ZY |
7085 | q = AC_NUM - 1 - queue; |
7086 | ||
7087 | spin_lock_irqsave(&priv->lock, flags); | |
7088 | ||
7089 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
7090 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
7091 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
7092 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 7093 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
7094 | |
7095 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
7096 | priv->qos_data.qos_active = 1; | |
7097 | ||
7098 | spin_unlock_irqrestore(&priv->lock, flags); | |
7099 | ||
7100 | mutex_lock(&priv->mutex); | |
05c914fe | 7101 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
bb8c093b CH |
7102 | iwl3945_activate_qos(priv, 1); |
7103 | else if (priv->assoc_id && iwl3945_is_associated(priv)) | |
7104 | iwl3945_activate_qos(priv, 0); | |
b481de9c ZY |
7105 | |
7106 | mutex_unlock(&priv->mutex); | |
7107 | ||
b481de9c ZY |
7108 | IWL_DEBUG_MAC80211("leave\n"); |
7109 | return 0; | |
7110 | } | |
7111 | ||
bb8c093b | 7112 | static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7113 | struct ieee80211_tx_queue_stats *stats) |
7114 | { | |
bb8c093b | 7115 | struct iwl3945_priv *priv = hw->priv; |
b481de9c | 7116 | int i, avail; |
bb8c093b CH |
7117 | struct iwl3945_tx_queue *txq; |
7118 | struct iwl3945_queue *q; | |
b481de9c ZY |
7119 | unsigned long flags; |
7120 | ||
7121 | IWL_DEBUG_MAC80211("enter\n"); | |
7122 | ||
bb8c093b | 7123 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7124 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7125 | return -EIO; | |
7126 | } | |
7127 | ||
7128 | spin_lock_irqsave(&priv->lock, flags); | |
7129 | ||
7130 | for (i = 0; i < AC_NUM; i++) { | |
7131 | txq = &priv->txq[i]; | |
7132 | q = &txq->q; | |
bb8c093b | 7133 | avail = iwl3945_queue_space(q); |
b481de9c | 7134 | |
57ffc589 JB |
7135 | stats[i].len = q->n_window - avail; |
7136 | stats[i].limit = q->n_window - q->high_mark; | |
7137 | stats[i].count = q->n_window; | |
b481de9c ZY |
7138 | |
7139 | } | |
7140 | spin_unlock_irqrestore(&priv->lock, flags); | |
7141 | ||
7142 | IWL_DEBUG_MAC80211("leave\n"); | |
7143 | ||
7144 | return 0; | |
7145 | } | |
7146 | ||
bb8c093b | 7147 | static int iwl3945_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7148 | struct ieee80211_low_level_stats *stats) |
7149 | { | |
7150 | IWL_DEBUG_MAC80211("enter\n"); | |
7151 | IWL_DEBUG_MAC80211("leave\n"); | |
7152 | ||
7153 | return 0; | |
7154 | } | |
7155 | ||
bb8c093b | 7156 | static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 7157 | { |
bb8c093b | 7158 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7159 | unsigned long flags; |
7160 | ||
7161 | mutex_lock(&priv->mutex); | |
7162 | IWL_DEBUG_MAC80211("enter\n"); | |
7163 | ||
bb8c093b | 7164 | iwl3945_reset_qos(priv); |
292ae174 | 7165 | |
b481de9c ZY |
7166 | spin_lock_irqsave(&priv->lock, flags); |
7167 | priv->assoc_id = 0; | |
7168 | priv->assoc_capability = 0; | |
7169 | priv->call_post_assoc_from_beacon = 0; | |
7170 | ||
7171 | /* new association get rid of ibss beacon skb */ | |
7172 | if (priv->ibss_beacon) | |
7173 | dev_kfree_skb(priv->ibss_beacon); | |
7174 | ||
7175 | priv->ibss_beacon = NULL; | |
7176 | ||
7177 | priv->beacon_int = priv->hw->conf.beacon_int; | |
7178 | priv->timestamp1 = 0; | |
7179 | priv->timestamp0 = 0; | |
05c914fe | 7180 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
b481de9c ZY |
7181 | priv->beacon_int = 0; |
7182 | ||
7183 | spin_unlock_irqrestore(&priv->lock, flags); | |
7184 | ||
fde3571f MA |
7185 | if (!iwl3945_is_ready_rf(priv)) { |
7186 | IWL_DEBUG_MAC80211("leave - not ready\n"); | |
7187 | mutex_unlock(&priv->mutex); | |
7188 | return; | |
7189 | } | |
7190 | ||
15e869d8 MA |
7191 | /* we are restarting association process |
7192 | * clear RXON_FILTER_ASSOC_MSK bit | |
7193 | */ | |
05c914fe | 7194 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
bb8c093b | 7195 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7196 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 7197 | iwl3945_commit_rxon(priv); |
15e869d8 MA |
7198 | } |
7199 | ||
b481de9c | 7200 | /* Per mac80211.h: This is only used in IBSS mode... */ |
05c914fe | 7201 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
15e869d8 | 7202 | |
b481de9c ZY |
7203 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
7204 | mutex_unlock(&priv->mutex); | |
7205 | return; | |
b481de9c ZY |
7206 | } |
7207 | ||
bb8c093b | 7208 | iwl3945_set_rate(priv); |
b481de9c ZY |
7209 | |
7210 | mutex_unlock(&priv->mutex); | |
7211 | ||
7212 | IWL_DEBUG_MAC80211("leave\n"); | |
7213 | ||
7214 | } | |
7215 | ||
e039fa4a | 7216 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 7217 | { |
bb8c093b | 7218 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7219 | unsigned long flags; |
7220 | ||
b481de9c ZY |
7221 | IWL_DEBUG_MAC80211("enter\n"); |
7222 | ||
bb8c093b | 7223 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c | 7224 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
b481de9c ZY |
7225 | return -EIO; |
7226 | } | |
7227 | ||
05c914fe | 7228 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
b481de9c | 7229 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); |
b481de9c ZY |
7230 | return -EIO; |
7231 | } | |
7232 | ||
7233 | spin_lock_irqsave(&priv->lock, flags); | |
7234 | ||
7235 | if (priv->ibss_beacon) | |
7236 | dev_kfree_skb(priv->ibss_beacon); | |
7237 | ||
7238 | priv->ibss_beacon = skb; | |
7239 | ||
7240 | priv->assoc_id = 0; | |
7241 | ||
7242 | IWL_DEBUG_MAC80211("leave\n"); | |
7243 | spin_unlock_irqrestore(&priv->lock, flags); | |
7244 | ||
bb8c093b | 7245 | iwl3945_reset_qos(priv); |
b481de9c | 7246 | |
dc4b1e7d | 7247 | iwl3945_post_associate(priv); |
b481de9c | 7248 | |
b481de9c ZY |
7249 | |
7250 | return 0; | |
7251 | } | |
7252 | ||
7253 | /***************************************************************************** | |
7254 | * | |
7255 | * sysfs attributes | |
7256 | * | |
7257 | *****************************************************************************/ | |
7258 | ||
c8b0e6e1 | 7259 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
7260 | |
7261 | /* | |
7262 | * The following adds a new attribute to the sysfs representation | |
7263 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
7264 | * used for controlling the debug level. | |
7265 | * | |
7266 | * See the level definitions in iwl for details. | |
7267 | */ | |
7268 | ||
7269 | static ssize_t show_debug_level(struct device_driver *d, char *buf) | |
7270 | { | |
bb8c093b | 7271 | return sprintf(buf, "0x%08X\n", iwl3945_debug_level); |
b481de9c ZY |
7272 | } |
7273 | static ssize_t store_debug_level(struct device_driver *d, | |
7274 | const char *buf, size_t count) | |
7275 | { | |
7276 | char *p = (char *)buf; | |
7277 | u32 val; | |
7278 | ||
7279 | val = simple_strtoul(p, &p, 0); | |
7280 | if (p == buf) | |
7281 | printk(KERN_INFO DRV_NAME | |
7282 | ": %s is not in hex or decimal form.\n", buf); | |
7283 | else | |
bb8c093b | 7284 | iwl3945_debug_level = val; |
b481de9c ZY |
7285 | |
7286 | return strnlen(buf, count); | |
7287 | } | |
7288 | ||
7289 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
7290 | show_debug_level, store_debug_level); | |
7291 | ||
c8b0e6e1 | 7292 | #endif /* CONFIG_IWL3945_DEBUG */ |
b481de9c | 7293 | |
b481de9c ZY |
7294 | static ssize_t show_temperature(struct device *d, |
7295 | struct device_attribute *attr, char *buf) | |
7296 | { | |
bb8c093b | 7297 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c | 7298 | |
bb8c093b | 7299 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7300 | return -EAGAIN; |
7301 | ||
bb8c093b | 7302 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
7303 | } |
7304 | ||
7305 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
7306 | ||
b481de9c ZY |
7307 | static ssize_t show_tx_power(struct device *d, |
7308 | struct device_attribute *attr, char *buf) | |
7309 | { | |
bb8c093b | 7310 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7311 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
7312 | } | |
7313 | ||
7314 | static ssize_t store_tx_power(struct device *d, | |
7315 | struct device_attribute *attr, | |
7316 | const char *buf, size_t count) | |
7317 | { | |
bb8c093b | 7318 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7319 | char *p = (char *)buf; |
7320 | u32 val; | |
7321 | ||
7322 | val = simple_strtoul(p, &p, 10); | |
7323 | if (p == buf) | |
7324 | printk(KERN_INFO DRV_NAME | |
7325 | ": %s is not in decimal form.\n", buf); | |
7326 | else | |
bb8c093b | 7327 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
7328 | |
7329 | return count; | |
7330 | } | |
7331 | ||
7332 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
7333 | ||
7334 | static ssize_t show_flags(struct device *d, | |
7335 | struct device_attribute *attr, char *buf) | |
7336 | { | |
bb8c093b | 7337 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7338 | |
7339 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
7340 | } | |
7341 | ||
7342 | static ssize_t store_flags(struct device *d, | |
7343 | struct device_attribute *attr, | |
7344 | const char *buf, size_t count) | |
7345 | { | |
bb8c093b | 7346 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7347 | u32 flags = simple_strtoul(buf, NULL, 0); |
7348 | ||
7349 | mutex_lock(&priv->mutex); | |
7350 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
7351 | /* Cancel any currently running scans... */ | |
bb8c093b | 7352 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7353 | IWL_WARNING("Could not cancel scan.\n"); |
7354 | else { | |
7355 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
7356 | flags); | |
7357 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 7358 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7359 | } |
7360 | } | |
7361 | mutex_unlock(&priv->mutex); | |
7362 | ||
7363 | return count; | |
7364 | } | |
7365 | ||
7366 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
7367 | ||
7368 | static ssize_t show_filter_flags(struct device *d, | |
7369 | struct device_attribute *attr, char *buf) | |
7370 | { | |
bb8c093b | 7371 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7372 | |
7373 | return sprintf(buf, "0x%04X\n", | |
7374 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
7375 | } | |
7376 | ||
7377 | static ssize_t store_filter_flags(struct device *d, | |
7378 | struct device_attribute *attr, | |
7379 | const char *buf, size_t count) | |
7380 | { | |
bb8c093b | 7381 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7382 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
7383 | ||
7384 | mutex_lock(&priv->mutex); | |
7385 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
7386 | /* Cancel any currently running scans... */ | |
bb8c093b | 7387 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7388 | IWL_WARNING("Could not cancel scan.\n"); |
7389 | else { | |
7390 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
7391 | "0x%04X\n", filter_flags); | |
7392 | priv->staging_rxon.filter_flags = | |
7393 | cpu_to_le32(filter_flags); | |
bb8c093b | 7394 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7395 | } |
7396 | } | |
7397 | mutex_unlock(&priv->mutex); | |
7398 | ||
7399 | return count; | |
7400 | } | |
7401 | ||
7402 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
7403 | store_filter_flags); | |
7404 | ||
c8b0e6e1 | 7405 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7406 | |
7407 | static ssize_t show_measurement(struct device *d, | |
7408 | struct device_attribute *attr, char *buf) | |
7409 | { | |
bb8c093b CH |
7410 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7411 | struct iwl3945_spectrum_notification measure_report; | |
b481de9c | 7412 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
3ac7f146 | 7413 | u8 *data = (u8 *)&measure_report; |
b481de9c ZY |
7414 | unsigned long flags; |
7415 | ||
7416 | spin_lock_irqsave(&priv->lock, flags); | |
7417 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
7418 | spin_unlock_irqrestore(&priv->lock, flags); | |
7419 | return 0; | |
7420 | } | |
7421 | memcpy(&measure_report, &priv->measure_report, size); | |
7422 | priv->measurement_status = 0; | |
7423 | spin_unlock_irqrestore(&priv->lock, flags); | |
7424 | ||
7425 | while (size && (PAGE_SIZE - len)) { | |
7426 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7427 | PAGE_SIZE - len, 1); | |
7428 | len = strlen(buf); | |
7429 | if (PAGE_SIZE - len) | |
7430 | buf[len++] = '\n'; | |
7431 | ||
7432 | ofs += 16; | |
7433 | size -= min(size, 16U); | |
7434 | } | |
7435 | ||
7436 | return len; | |
7437 | } | |
7438 | ||
7439 | static ssize_t store_measurement(struct device *d, | |
7440 | struct device_attribute *attr, | |
7441 | const char *buf, size_t count) | |
7442 | { | |
bb8c093b | 7443 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7444 | struct ieee80211_measurement_params params = { |
7445 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
7446 | .start_time = cpu_to_le64(priv->last_tsf), | |
7447 | .duration = cpu_to_le16(1), | |
7448 | }; | |
7449 | u8 type = IWL_MEASURE_BASIC; | |
7450 | u8 buffer[32]; | |
7451 | u8 channel; | |
7452 | ||
7453 | if (count) { | |
7454 | char *p = buffer; | |
7455 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
7456 | channel = simple_strtoul(p, NULL, 0); | |
7457 | if (channel) | |
7458 | params.channel = channel; | |
7459 | ||
7460 | p = buffer; | |
7461 | while (*p && *p != ' ') | |
7462 | p++; | |
7463 | if (*p) | |
7464 | type = simple_strtoul(p + 1, NULL, 0); | |
7465 | } | |
7466 | ||
7467 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
7468 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 7469 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
7470 | |
7471 | return count; | |
7472 | } | |
7473 | ||
7474 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
7475 | show_measurement, store_measurement); | |
c8b0e6e1 | 7476 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
b481de9c | 7477 | |
b481de9c ZY |
7478 | static ssize_t store_retry_rate(struct device *d, |
7479 | struct device_attribute *attr, | |
7480 | const char *buf, size_t count) | |
7481 | { | |
bb8c093b | 7482 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7483 | |
7484 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
7485 | if (priv->retry_rate <= 0) | |
7486 | priv->retry_rate = 1; | |
7487 | ||
7488 | return count; | |
7489 | } | |
7490 | ||
7491 | static ssize_t show_retry_rate(struct device *d, | |
7492 | struct device_attribute *attr, char *buf) | |
7493 | { | |
bb8c093b | 7494 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7495 | return sprintf(buf, "%d", priv->retry_rate); |
7496 | } | |
7497 | ||
7498 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
7499 | store_retry_rate); | |
7500 | ||
7501 | static ssize_t store_power_level(struct device *d, | |
7502 | struct device_attribute *attr, | |
7503 | const char *buf, size_t count) | |
7504 | { | |
bb8c093b | 7505 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7506 | int rc; |
7507 | int mode; | |
7508 | ||
7509 | mode = simple_strtoul(buf, NULL, 0); | |
7510 | mutex_lock(&priv->mutex); | |
7511 | ||
bb8c093b | 7512 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
7513 | rc = -EAGAIN; |
7514 | goto out; | |
7515 | } | |
7516 | ||
7517 | if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC)) | |
7518 | mode = IWL_POWER_AC; | |
7519 | else | |
7520 | mode |= IWL_POWER_ENABLED; | |
7521 | ||
7522 | if (mode != priv->power_mode) { | |
bb8c093b | 7523 | rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode)); |
b481de9c ZY |
7524 | if (rc) { |
7525 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
7526 | goto out; | |
7527 | } | |
7528 | priv->power_mode = mode; | |
7529 | } | |
7530 | ||
7531 | rc = count; | |
7532 | ||
7533 | out: | |
7534 | mutex_unlock(&priv->mutex); | |
7535 | return rc; | |
7536 | } | |
7537 | ||
7538 | #define MAX_WX_STRING 80 | |
7539 | ||
7540 | /* Values are in microsecond */ | |
7541 | static const s32 timeout_duration[] = { | |
7542 | 350000, | |
7543 | 250000, | |
7544 | 75000, | |
7545 | 37000, | |
7546 | 25000, | |
7547 | }; | |
7548 | static const s32 period_duration[] = { | |
7549 | 400000, | |
7550 | 700000, | |
7551 | 1000000, | |
7552 | 1000000, | |
7553 | 1000000 | |
7554 | }; | |
7555 | ||
7556 | static ssize_t show_power_level(struct device *d, | |
7557 | struct device_attribute *attr, char *buf) | |
7558 | { | |
bb8c093b | 7559 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7560 | int level = IWL_POWER_LEVEL(priv->power_mode); |
7561 | char *p = buf; | |
7562 | ||
7563 | p += sprintf(p, "%d ", level); | |
7564 | switch (level) { | |
7565 | case IWL_POWER_MODE_CAM: | |
7566 | case IWL_POWER_AC: | |
7567 | p += sprintf(p, "(AC)"); | |
7568 | break; | |
7569 | case IWL_POWER_BATTERY: | |
7570 | p += sprintf(p, "(BATTERY)"); | |
7571 | break; | |
7572 | default: | |
7573 | p += sprintf(p, | |
7574 | "(Timeout %dms, Period %dms)", | |
7575 | timeout_duration[level - 1] / 1000, | |
7576 | period_duration[level - 1] / 1000); | |
7577 | } | |
7578 | ||
7579 | if (!(priv->power_mode & IWL_POWER_ENABLED)) | |
7580 | p += sprintf(p, " OFF\n"); | |
7581 | else | |
7582 | p += sprintf(p, " \n"); | |
7583 | ||
3ac7f146 | 7584 | return p - buf + 1; |
b481de9c ZY |
7585 | |
7586 | } | |
7587 | ||
7588 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
7589 | store_power_level); | |
7590 | ||
7591 | static ssize_t show_channels(struct device *d, | |
7592 | struct device_attribute *attr, char *buf) | |
7593 | { | |
8318d78a JB |
7594 | /* all this shit doesn't belong into sysfs anyway */ |
7595 | return 0; | |
b481de9c ZY |
7596 | } |
7597 | ||
7598 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
7599 | ||
7600 | static ssize_t show_statistics(struct device *d, | |
7601 | struct device_attribute *attr, char *buf) | |
7602 | { | |
bb8c093b CH |
7603 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7604 | u32 size = sizeof(struct iwl3945_notif_statistics); | |
b481de9c | 7605 | u32 len = 0, ofs = 0; |
3ac7f146 | 7606 | u8 *data = (u8 *)&priv->statistics; |
b481de9c ZY |
7607 | int rc = 0; |
7608 | ||
bb8c093b | 7609 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7610 | return -EAGAIN; |
7611 | ||
7612 | mutex_lock(&priv->mutex); | |
bb8c093b | 7613 | rc = iwl3945_send_statistics_request(priv); |
b481de9c ZY |
7614 | mutex_unlock(&priv->mutex); |
7615 | ||
7616 | if (rc) { | |
7617 | len = sprintf(buf, | |
7618 | "Error sending statistics request: 0x%08X\n", rc); | |
7619 | return len; | |
7620 | } | |
7621 | ||
7622 | while (size && (PAGE_SIZE - len)) { | |
7623 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7624 | PAGE_SIZE - len, 1); | |
7625 | len = strlen(buf); | |
7626 | if (PAGE_SIZE - len) | |
7627 | buf[len++] = '\n'; | |
7628 | ||
7629 | ofs += 16; | |
7630 | size -= min(size, 16U); | |
7631 | } | |
7632 | ||
7633 | return len; | |
7634 | } | |
7635 | ||
7636 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
7637 | ||
7638 | static ssize_t show_antenna(struct device *d, | |
7639 | struct device_attribute *attr, char *buf) | |
7640 | { | |
bb8c093b | 7641 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c | 7642 | |
bb8c093b | 7643 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7644 | return -EAGAIN; |
7645 | ||
7646 | return sprintf(buf, "%d\n", priv->antenna); | |
7647 | } | |
7648 | ||
7649 | static ssize_t store_antenna(struct device *d, | |
7650 | struct device_attribute *attr, | |
7651 | const char *buf, size_t count) | |
7652 | { | |
7653 | int ant; | |
bb8c093b | 7654 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7655 | |
7656 | if (count == 0) | |
7657 | return 0; | |
7658 | ||
7659 | if (sscanf(buf, "%1i", &ant) != 1) { | |
7660 | IWL_DEBUG_INFO("not in hex or decimal form.\n"); | |
7661 | return count; | |
7662 | } | |
7663 | ||
7664 | if ((ant >= 0) && (ant <= 2)) { | |
7665 | IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant); | |
bb8c093b | 7666 | priv->antenna = (enum iwl3945_antenna)ant; |
b481de9c ZY |
7667 | } else |
7668 | IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant); | |
7669 | ||
7670 | ||
7671 | return count; | |
7672 | } | |
7673 | ||
7674 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
7675 | ||
7676 | static ssize_t show_status(struct device *d, | |
7677 | struct device_attribute *attr, char *buf) | |
7678 | { | |
bb8c093b CH |
7679 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
7680 | if (!iwl3945_is_alive(priv)) | |
b481de9c ZY |
7681 | return -EAGAIN; |
7682 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
7683 | } | |
7684 | ||
7685 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
7686 | ||
7687 | static ssize_t dump_error_log(struct device *d, | |
7688 | struct device_attribute *attr, | |
7689 | const char *buf, size_t count) | |
7690 | { | |
7691 | char *p = (char *)buf; | |
7692 | ||
7693 | if (p[0] == '1') | |
bb8c093b | 7694 | iwl3945_dump_nic_error_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7695 | |
7696 | return strnlen(buf, count); | |
7697 | } | |
7698 | ||
7699 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
7700 | ||
7701 | static ssize_t dump_event_log(struct device *d, | |
7702 | struct device_attribute *attr, | |
7703 | const char *buf, size_t count) | |
7704 | { | |
7705 | char *p = (char *)buf; | |
7706 | ||
7707 | if (p[0] == '1') | |
bb8c093b | 7708 | iwl3945_dump_nic_event_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7709 | |
7710 | return strnlen(buf, count); | |
7711 | } | |
7712 | ||
7713 | static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); | |
7714 | ||
7715 | /***************************************************************************** | |
7716 | * | |
a96a27f9 | 7717 | * driver setup and tear down |
b481de9c ZY |
7718 | * |
7719 | *****************************************************************************/ | |
7720 | ||
bb8c093b | 7721 | static void iwl3945_setup_deferred_work(struct iwl3945_priv *priv) |
b481de9c ZY |
7722 | { |
7723 | priv->workqueue = create_workqueue(DRV_NAME); | |
7724 | ||
7725 | init_waitqueue_head(&priv->wait_command_queue); | |
7726 | ||
bb8c093b CH |
7727 | INIT_WORK(&priv->up, iwl3945_bg_up); |
7728 | INIT_WORK(&priv->restart, iwl3945_bg_restart); | |
7729 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
7730 | INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed); | |
7731 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
7732 | INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan); | |
7733 | INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill); | |
7734 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); | |
bb8c093b CH |
7735 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); |
7736 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
7737 | INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check); | |
7738 | ||
7739 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
7740 | |
7741 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 7742 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
7743 | } |
7744 | ||
bb8c093b | 7745 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv) |
b481de9c | 7746 | { |
bb8c093b | 7747 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 7748 | |
e47eb6ad | 7749 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
7750 | cancel_delayed_work(&priv->scan_check); |
7751 | cancel_delayed_work(&priv->alive_start); | |
b481de9c ZY |
7752 | cancel_work_sync(&priv->beacon_update); |
7753 | } | |
7754 | ||
bb8c093b | 7755 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
7756 | &dev_attr_antenna.attr, |
7757 | &dev_attr_channels.attr, | |
7758 | &dev_attr_dump_errors.attr, | |
7759 | &dev_attr_dump_events.attr, | |
7760 | &dev_attr_flags.attr, | |
7761 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 7762 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7763 | &dev_attr_measurement.attr, |
7764 | #endif | |
7765 | &dev_attr_power_level.attr, | |
b481de9c | 7766 | &dev_attr_retry_rate.attr, |
b481de9c ZY |
7767 | &dev_attr_statistics.attr, |
7768 | &dev_attr_status.attr, | |
7769 | &dev_attr_temperature.attr, | |
b481de9c ZY |
7770 | &dev_attr_tx_power.attr, |
7771 | ||
7772 | NULL | |
7773 | }; | |
7774 | ||
bb8c093b | 7775 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 7776 | .name = NULL, /* put in device directory */ |
bb8c093b | 7777 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
7778 | }; |
7779 | ||
bb8c093b CH |
7780 | static struct ieee80211_ops iwl3945_hw_ops = { |
7781 | .tx = iwl3945_mac_tx, | |
7782 | .start = iwl3945_mac_start, | |
7783 | .stop = iwl3945_mac_stop, | |
7784 | .add_interface = iwl3945_mac_add_interface, | |
7785 | .remove_interface = iwl3945_mac_remove_interface, | |
7786 | .config = iwl3945_mac_config, | |
7787 | .config_interface = iwl3945_mac_config_interface, | |
7788 | .configure_filter = iwl3945_configure_filter, | |
7789 | .set_key = iwl3945_mac_set_key, | |
7790 | .get_stats = iwl3945_mac_get_stats, | |
7791 | .get_tx_stats = iwl3945_mac_get_tx_stats, | |
7792 | .conf_tx = iwl3945_mac_conf_tx, | |
bb8c093b | 7793 | .reset_tsf = iwl3945_mac_reset_tsf, |
cd56d331 | 7794 | .bss_info_changed = iwl3945_bss_info_changed, |
bb8c093b | 7795 | .hw_scan = iwl3945_mac_hw_scan |
b481de9c ZY |
7796 | }; |
7797 | ||
bb8c093b | 7798 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
7799 | { |
7800 | int err = 0; | |
bb8c093b | 7801 | struct iwl3945_priv *priv; |
b481de9c | 7802 | struct ieee80211_hw *hw; |
82b9a121 | 7803 | struct iwl_3945_cfg *cfg = (struct iwl_3945_cfg *)(ent->driver_data); |
0359facc | 7804 | unsigned long flags; |
b481de9c | 7805 | |
cee53ddb KA |
7806 | /*********************** |
7807 | * 1. Allocating HW data | |
7808 | * ********************/ | |
7809 | ||
6440adb5 CB |
7810 | /* Disabling hardware scan means that mac80211 will perform scans |
7811 | * "the hard way", rather than using device's scan. */ | |
bb8c093b | 7812 | if (iwl3945_param_disable_hw_scan) { |
b481de9c | 7813 | IWL_DEBUG_INFO("Disabling hw_scan\n"); |
bb8c093b | 7814 | iwl3945_hw_ops.hw_scan = NULL; |
b481de9c ZY |
7815 | } |
7816 | ||
dfe7d458 | 7817 | if ((iwl3945_param_queues_num > IWL39_MAX_NUM_QUEUES) || |
bb8c093b | 7818 | (iwl3945_param_queues_num < IWL_MIN_NUM_QUEUES)) { |
b481de9c | 7819 | IWL_ERROR("invalid queues_num, should be between %d and %d\n", |
dfe7d458 | 7820 | IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES); |
b481de9c ZY |
7821 | err = -EINVAL; |
7822 | goto out; | |
7823 | } | |
7824 | ||
7825 | /* mac80211 allocates memory for this device instance, including | |
7826 | * space for this driver's private structure */ | |
bb8c093b | 7827 | hw = ieee80211_alloc_hw(sizeof(struct iwl3945_priv), &iwl3945_hw_ops); |
b481de9c ZY |
7828 | if (hw == NULL) { |
7829 | IWL_ERROR("Can not allocate network device\n"); | |
7830 | err = -ENOMEM; | |
7831 | goto out; | |
7832 | } | |
b481de9c | 7833 | |
cee53ddb | 7834 | SET_IEEE80211_DEV(hw, &pdev->dev); |
f51359a8 | 7835 | |
b481de9c ZY |
7836 | priv = hw->priv; |
7837 | priv->hw = hw; | |
b481de9c | 7838 | priv->pci_dev = pdev; |
82b9a121 | 7839 | priv->cfg = cfg; |
6440adb5 | 7840 | |
cee53ddb KA |
7841 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); |
7842 | hw->rate_control_algorithm = "iwl-3945-rs"; | |
7843 | hw->sta_data_size = sizeof(struct iwl3945_sta_priv); | |
7844 | ||
6440adb5 | 7845 | /* Select antenna (may be helpful if only one antenna is connected) */ |
bb8c093b | 7846 | priv->antenna = (enum iwl3945_antenna)iwl3945_param_antenna; |
c8b0e6e1 | 7847 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 7848 | iwl3945_debug_level = iwl3945_param_debug; |
b481de9c ZY |
7849 | atomic_set(&priv->restrict_refcnt, 0); |
7850 | #endif | |
b481de9c | 7851 | |
566bfe5a | 7852 | /* Tell mac80211 our characteristics */ |
605a0bd6 | 7853 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
566bfe5a | 7854 | IEEE80211_HW_NOISE_DBM; |
b481de9c | 7855 | |
f59ac048 | 7856 | hw->wiphy->interface_modes = |
f59ac048 LR |
7857 | BIT(NL80211_IFTYPE_STATION) | |
7858 | BIT(NL80211_IFTYPE_ADHOC); | |
7859 | ||
ea4a82dc LR |
7860 | hw->wiphy->fw_handles_regulatory = true; |
7861 | ||
6440adb5 | 7862 | /* 4 EDCA QOS priorities */ |
b481de9c ZY |
7863 | hw->queues = 4; |
7864 | ||
cee53ddb KA |
7865 | /*************************** |
7866 | * 2. Initializing PCI bus | |
7867 | * *************************/ | |
b481de9c ZY |
7868 | if (pci_enable_device(pdev)) { |
7869 | err = -ENODEV; | |
7870 | goto out_ieee80211_free_hw; | |
7871 | } | |
7872 | ||
7873 | pci_set_master(pdev); | |
7874 | ||
b481de9c ZY |
7875 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
7876 | if (!err) | |
7877 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
7878 | if (err) { | |
7879 | printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); | |
7880 | goto out_pci_disable_device; | |
7881 | } | |
7882 | ||
7883 | pci_set_drvdata(pdev, priv); | |
7884 | err = pci_request_regions(pdev, DRV_NAME); | |
7885 | if (err) | |
7886 | goto out_pci_disable_device; | |
6440adb5 | 7887 | |
cee53ddb KA |
7888 | /*********************** |
7889 | * 3. Read REV Register | |
7890 | * ********************/ | |
b481de9c ZY |
7891 | priv->hw_base = pci_iomap(pdev, 0, 0); |
7892 | if (!priv->hw_base) { | |
7893 | err = -ENODEV; | |
7894 | goto out_pci_release_regions; | |
7895 | } | |
7896 | ||
7897 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
7898 | (unsigned long long) pci_resource_len(pdev, 0)); | |
7899 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
7900 | ||
cee53ddb KA |
7901 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
7902 | * PCI Tx retries from interfering with C3 CPU state */ | |
7903 | pci_write_config_byte(pdev, 0x41, 0x00); | |
b481de9c | 7904 | |
cee53ddb KA |
7905 | /* nic init */ |
7906 | iwl3945_set_bit(priv, CSR_GIO_CHICKEN_BITS, | |
7907 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); | |
b481de9c | 7908 | |
cee53ddb | 7909 | iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
73d7b5ac ZY |
7910 | err = iwl3945_poll_direct_bit(priv, CSR_GP_CNTRL, |
7911 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
cee53ddb KA |
7912 | if (err < 0) { |
7913 | IWL_DEBUG_INFO("Failed to init the card\n"); | |
623d563e | 7914 | goto out_iounmap; |
cee53ddb | 7915 | } |
b481de9c | 7916 | |
cee53ddb KA |
7917 | /*********************** |
7918 | * 4. Read EEPROM | |
7919 | * ********************/ | |
7920 | /* Read the EEPROM */ | |
7921 | err = iwl3945_eeprom_init(priv); | |
7922 | if (err) { | |
7923 | IWL_ERROR("Unable to init EEPROM\n"); | |
623d563e | 7924 | goto out_iounmap; |
cee53ddb KA |
7925 | } |
7926 | /* MAC Address location in EEPROM same for 3945/4965 */ | |
7927 | get_eeprom_mac(priv, priv->mac_addr); | |
7928 | IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr); | |
7929 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
b481de9c | 7930 | |
cee53ddb KA |
7931 | /*********************** |
7932 | * 5. Setup HW Constants | |
7933 | * ********************/ | |
b481de9c | 7934 | /* Device-specific setup */ |
bb8c093b | 7935 | if (iwl3945_hw_set_hw_setting(priv)) { |
b481de9c | 7936 | IWL_ERROR("failed to set hw settings\n"); |
b481de9c ZY |
7937 | goto out_iounmap; |
7938 | } | |
7939 | ||
cee53ddb KA |
7940 | /*********************** |
7941 | * 6. Setup priv | |
7942 | * ********************/ | |
7943 | priv->retry_rate = 1; | |
7944 | priv->ibss_beacon = NULL; | |
7945 | ||
7946 | spin_lock_init(&priv->lock); | |
7947 | spin_lock_init(&priv->power_data.lock); | |
7948 | spin_lock_init(&priv->sta_lock); | |
7949 | spin_lock_init(&priv->hcmd_lock); | |
7950 | ||
7951 | INIT_LIST_HEAD(&priv->free_frames); | |
7952 | mutex_init(&priv->mutex); | |
7953 | ||
7954 | /* Clear the driver's (not device's) station table */ | |
7955 | iwl3945_clear_stations_table(priv); | |
7956 | ||
7957 | priv->data_retry_limit = -1; | |
7958 | priv->ieee_channels = NULL; | |
7959 | priv->ieee_rates = NULL; | |
7960 | priv->band = IEEE80211_BAND_2GHZ; | |
7961 | ||
7962 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
7963 | ||
bb8c093b | 7964 | iwl3945_reset_qos(priv); |
b481de9c ZY |
7965 | |
7966 | priv->qos_data.qos_active = 0; | |
7967 | priv->qos_data.qos_cap.val = 0; | |
b481de9c | 7968 | |
b481de9c ZY |
7969 | |
7970 | priv->rates_mask = IWL_RATES_MASK; | |
7971 | /* If power management is turned on, default to AC mode */ | |
7972 | priv->power_mode = IWL_POWER_AC; | |
7973 | priv->user_txpower_limit = IWL_DEFAULT_TX_POWER; | |
7974 | ||
cee53ddb | 7975 | err = iwl3945_init_channel_map(priv); |
b481de9c | 7976 | if (err) { |
cee53ddb | 7977 | IWL_ERROR("initializing regulatory failed: %d\n", err); |
623d563e | 7978 | goto out_unset_hw_setting; |
b481de9c ZY |
7979 | } |
7980 | ||
cee53ddb | 7981 | err = iwl3945_init_geos(priv); |
b481de9c | 7982 | if (err) { |
cee53ddb KA |
7983 | IWL_ERROR("initializing geos failed: %d\n", err); |
7984 | goto out_free_channel_map; | |
b481de9c ZY |
7985 | } |
7986 | ||
cee53ddb KA |
7987 | printk(KERN_INFO DRV_NAME |
7988 | ": Detected Intel Wireless WiFi Link %s\n", priv->cfg->name); | |
7989 | ||
7990 | /*********************************** | |
7991 | * 7. Initialize Module Parameters | |
7992 | * **********************************/ | |
7993 | ||
7994 | /* Initialize module parameter values here */ | |
7995 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
7996 | if (iwl3945_param_disable) { | |
7997 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
7998 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
849e0dce RC |
7999 | } |
8000 | ||
cee53ddb KA |
8001 | |
8002 | /*********************** | |
8003 | * 8. Setup Services | |
8004 | * ********************/ | |
8005 | ||
8006 | spin_lock_irqsave(&priv->lock, flags); | |
8007 | iwl3945_disable_interrupts(priv); | |
8008 | spin_unlock_irqrestore(&priv->lock, flags); | |
8009 | ||
8010 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); | |
849e0dce | 8011 | if (err) { |
cee53ddb KA |
8012 | IWL_ERROR("failed to create sysfs device attributes\n"); |
8013 | goto out_free_geos; | |
849e0dce | 8014 | } |
849e0dce | 8015 | |
cee53ddb KA |
8016 | iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); |
8017 | iwl3945_setup_deferred_work(priv); | |
8018 | iwl3945_setup_rx_handlers(priv); | |
8019 | ||
8020 | /*********************** | |
8021 | * 9. Conclude | |
8022 | * ********************/ | |
8023 | pci_save_state(pdev); | |
8024 | pci_disable_device(pdev); | |
8025 | ||
8026 | /********************************* | |
8027 | * 10. Setup and Register mac80211 | |
8028 | * *******************************/ | |
8029 | ||
5a66926a ZY |
8030 | err = ieee80211_register_hw(priv->hw); |
8031 | if (err) { | |
8032 | IWL_ERROR("Failed to register network device (error %d)\n", err); | |
cee53ddb | 8033 | goto out_remove_sysfs; |
5a66926a | 8034 | } |
b481de9c | 8035 | |
5a66926a ZY |
8036 | priv->hw->conf.beacon_int = 100; |
8037 | priv->mac80211_registered = 1; | |
cee53ddb | 8038 | |
b481de9c | 8039 | |
ebef2008 AK |
8040 | err = iwl3945_rfkill_init(priv); |
8041 | if (err) | |
8042 | IWL_ERROR("Unable to initialize RFKILL system. " | |
8043 | "Ignoring error: %d\n", err); | |
8044 | ||
b481de9c ZY |
8045 | return 0; |
8046 | ||
cee53ddb | 8047 | out_remove_sysfs: |
623d563e RC |
8048 | destroy_workqueue(priv->workqueue); |
8049 | priv->workqueue = NULL; | |
cee53ddb | 8050 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
849e0dce RC |
8051 | out_free_geos: |
8052 | iwl3945_free_geos(priv); | |
8053 | out_free_channel_map: | |
8054 | iwl3945_free_channel_map(priv); | |
623d563e | 8055 | out_unset_hw_setting: |
bb8c093b | 8056 | iwl3945_unset_hw_setting(priv); |
b481de9c ZY |
8057 | out_iounmap: |
8058 | pci_iounmap(pdev, priv->hw_base); | |
8059 | out_pci_release_regions: | |
8060 | pci_release_regions(pdev); | |
8061 | out_pci_disable_device: | |
b481de9c | 8062 | pci_set_drvdata(pdev, NULL); |
623d563e | 8063 | pci_disable_device(pdev); |
b481de9c ZY |
8064 | out_ieee80211_free_hw: |
8065 | ieee80211_free_hw(priv->hw); | |
8066 | out: | |
8067 | return err; | |
8068 | } | |
8069 | ||
c83dbf68 | 8070 | static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) |
b481de9c | 8071 | { |
bb8c093b | 8072 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
0359facc | 8073 | unsigned long flags; |
b481de9c ZY |
8074 | |
8075 | if (!priv) | |
8076 | return; | |
8077 | ||
8078 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
8079 | ||
b481de9c | 8080 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 8081 | |
bb8c093b | 8082 | iwl3945_down(priv); |
b481de9c | 8083 | |
0359facc MA |
8084 | /* make sure we flush any pending irq or |
8085 | * tasklet for the driver | |
8086 | */ | |
8087 | spin_lock_irqsave(&priv->lock, flags); | |
8088 | iwl3945_disable_interrupts(priv); | |
8089 | spin_unlock_irqrestore(&priv->lock, flags); | |
8090 | ||
8091 | iwl_synchronize_irq(priv); | |
8092 | ||
bb8c093b | 8093 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 8094 | |
ebef2008 | 8095 | iwl3945_rfkill_unregister(priv); |
bb8c093b | 8096 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
8097 | |
8098 | if (priv->rxq.bd) | |
bb8c093b CH |
8099 | iwl3945_rx_queue_free(priv, &priv->rxq); |
8100 | iwl3945_hw_txq_ctx_free(priv); | |
b481de9c | 8101 | |
bb8c093b CH |
8102 | iwl3945_unset_hw_setting(priv); |
8103 | iwl3945_clear_stations_table(priv); | |
b481de9c | 8104 | |
3ac7f146 | 8105 | if (priv->mac80211_registered) |
b481de9c | 8106 | ieee80211_unregister_hw(priv->hw); |
b481de9c | 8107 | |
6ef89d0a MA |
8108 | /*netif_stop_queue(dev); */ |
8109 | flush_workqueue(priv->workqueue); | |
8110 | ||
bb8c093b | 8111 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
b481de9c ZY |
8112 | * priv->workqueue... so we can't take down the workqueue |
8113 | * until now... */ | |
8114 | destroy_workqueue(priv->workqueue); | |
8115 | priv->workqueue = NULL; | |
8116 | ||
b481de9c ZY |
8117 | pci_iounmap(pdev, priv->hw_base); |
8118 | pci_release_regions(pdev); | |
8119 | pci_disable_device(pdev); | |
8120 | pci_set_drvdata(pdev, NULL); | |
8121 | ||
849e0dce RC |
8122 | iwl3945_free_channel_map(priv); |
8123 | iwl3945_free_geos(priv); | |
261415f7 | 8124 | kfree(priv->scan); |
b481de9c ZY |
8125 | if (priv->ibss_beacon) |
8126 | dev_kfree_skb(priv->ibss_beacon); | |
8127 | ||
8128 | ieee80211_free_hw(priv->hw); | |
8129 | } | |
8130 | ||
8131 | #ifdef CONFIG_PM | |
8132 | ||
bb8c093b | 8133 | static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 8134 | { |
bb8c093b | 8135 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8136 | |
e655b9f0 ZY |
8137 | if (priv->is_open) { |
8138 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
8139 | iwl3945_mac_stop(priv->hw); | |
8140 | priv->is_open = 1; | |
8141 | } | |
b481de9c | 8142 | |
89c581b3 RC |
8143 | /* pci driver assumes state will be saved in this function. |
8144 | * pci state is saved and device disabled when interface is | |
8145 | * stopped, so at this time pci device will always be disabled - | |
8146 | * whether interface was started or not. saving pci state now will | |
8147 | * cause saved state be that of a disabled device, which will cause | |
8148 | * problems during resume in that we will end up with a disabled device. | |
8149 | * | |
8150 | * indicate that the current saved state (from when interface was | |
8151 | * stopped) is valid. if interface was never up at time of suspend | |
8152 | * then the saved state will still be valid as it was saved during | |
8153 | * .probe. */ | |
8154 | pdev->state_saved = true; | |
8155 | ||
b481de9c ZY |
8156 | pci_set_power_state(pdev, PCI_D3hot); |
8157 | ||
b481de9c ZY |
8158 | return 0; |
8159 | } | |
8160 | ||
bb8c093b | 8161 | static int iwl3945_pci_resume(struct pci_dev *pdev) |
b481de9c | 8162 | { |
bb8c093b | 8163 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8164 | |
b481de9c | 8165 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 8166 | |
e655b9f0 ZY |
8167 | if (priv->is_open) |
8168 | iwl3945_mac_start(priv->hw); | |
b481de9c | 8169 | |
e655b9f0 | 8170 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
8171 | return 0; |
8172 | } | |
8173 | ||
8174 | #endif /* CONFIG_PM */ | |
8175 | ||
ebef2008 | 8176 | /*************** RFKILL FUNCTIONS **********/ |
80fcc9e2 | 8177 | #ifdef CONFIG_IWL3945_RFKILL |
ebef2008 AK |
8178 | /* software rf-kill from user */ |
8179 | static int iwl3945_rfkill_soft_rf_kill(void *data, enum rfkill_state state) | |
8180 | { | |
8181 | struct iwl3945_priv *priv = data; | |
8182 | int err = 0; | |
8183 | ||
80fcc9e2 | 8184 | if (!priv->rfkill) |
ebef2008 AK |
8185 | return 0; |
8186 | ||
8187 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
8188 | return 0; | |
8189 | ||
a96a27f9 | 8190 | IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state); |
ebef2008 AK |
8191 | mutex_lock(&priv->mutex); |
8192 | ||
8193 | switch (state) { | |
acdfe9b4 | 8194 | case RFKILL_STATE_UNBLOCKED: |
80fcc9e2 | 8195 | if (iwl3945_is_rfkill_hw(priv)) { |
ebef2008 | 8196 | err = -EBUSY; |
80fcc9e2 AG |
8197 | goto out_unlock; |
8198 | } | |
8199 | iwl3945_radio_kill_sw(priv, 0); | |
ebef2008 | 8200 | break; |
acdfe9b4 | 8201 | case RFKILL_STATE_SOFT_BLOCKED: |
ebef2008 | 8202 | iwl3945_radio_kill_sw(priv, 1); |
ebef2008 | 8203 | break; |
acdfe9b4 | 8204 | default: |
a96a27f9 | 8205 | IWL_WARNING("we received unexpected RFKILL state %d\n", state); |
acdfe9b4 | 8206 | break; |
ebef2008 | 8207 | } |
80fcc9e2 | 8208 | out_unlock: |
ebef2008 AK |
8209 | mutex_unlock(&priv->mutex); |
8210 | ||
8211 | return err; | |
8212 | } | |
8213 | ||
8214 | int iwl3945_rfkill_init(struct iwl3945_priv *priv) | |
8215 | { | |
8216 | struct device *device = wiphy_dev(priv->hw->wiphy); | |
8217 | int ret = 0; | |
8218 | ||
8219 | BUG_ON(device == NULL); | |
8220 | ||
8221 | IWL_DEBUG_RF_KILL("Initializing RFKILL.\n"); | |
80fcc9e2 AG |
8222 | priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN); |
8223 | if (!priv->rfkill) { | |
ebef2008 AK |
8224 | IWL_ERROR("Unable to allocate rfkill device.\n"); |
8225 | ret = -ENOMEM; | |
8226 | goto error; | |
8227 | } | |
8228 | ||
80fcc9e2 AG |
8229 | priv->rfkill->name = priv->cfg->name; |
8230 | priv->rfkill->data = priv; | |
8231 | priv->rfkill->state = RFKILL_STATE_UNBLOCKED; | |
8232 | priv->rfkill->toggle_radio = iwl3945_rfkill_soft_rf_kill; | |
8233 | priv->rfkill->user_claim_unsupported = 1; | |
ebef2008 | 8234 | |
80fcc9e2 AG |
8235 | priv->rfkill->dev.class->suspend = NULL; |
8236 | priv->rfkill->dev.class->resume = NULL; | |
ebef2008 | 8237 | |
80fcc9e2 | 8238 | ret = rfkill_register(priv->rfkill); |
ebef2008 AK |
8239 | if (ret) { |
8240 | IWL_ERROR("Unable to register rfkill: %d\n", ret); | |
80fcc9e2 | 8241 | goto freed_rfkill; |
ebef2008 AK |
8242 | } |
8243 | ||
8244 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8245 | return ret; | |
8246 | ||
ebef2008 | 8247 | freed_rfkill: |
80fcc9e2 AG |
8248 | if (priv->rfkill != NULL) |
8249 | rfkill_free(priv->rfkill); | |
8250 | priv->rfkill = NULL; | |
ebef2008 AK |
8251 | |
8252 | error: | |
8253 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8254 | return ret; | |
8255 | } | |
8256 | ||
8257 | void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) | |
8258 | { | |
80fcc9e2 AG |
8259 | if (priv->rfkill) |
8260 | rfkill_unregister(priv->rfkill); | |
ebef2008 | 8261 | |
80fcc9e2 | 8262 | priv->rfkill = NULL; |
ebef2008 AK |
8263 | } |
8264 | ||
8265 | /* set rf-kill to the right state. */ | |
8266 | void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) | |
8267 | { | |
8268 | ||
80fcc9e2 AG |
8269 | if (!priv->rfkill) |
8270 | return; | |
8271 | ||
8272 | if (iwl3945_is_rfkill_hw(priv)) { | |
8273 | rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED); | |
ebef2008 | 8274 | return; |
80fcc9e2 | 8275 | } |
ebef2008 | 8276 | |
80fcc9e2 AG |
8277 | if (!iwl3945_is_rfkill_sw(priv)) |
8278 | rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED); | |
ebef2008 | 8279 | else |
80fcc9e2 | 8280 | rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED); |
ebef2008 AK |
8281 | } |
8282 | #endif | |
8283 | ||
b481de9c ZY |
8284 | /***************************************************************************** |
8285 | * | |
8286 | * driver and module entry point | |
8287 | * | |
8288 | *****************************************************************************/ | |
8289 | ||
bb8c093b | 8290 | static struct pci_driver iwl3945_driver = { |
b481de9c | 8291 | .name = DRV_NAME, |
bb8c093b CH |
8292 | .id_table = iwl3945_hw_card_ids, |
8293 | .probe = iwl3945_pci_probe, | |
8294 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 8295 | #ifdef CONFIG_PM |
bb8c093b CH |
8296 | .suspend = iwl3945_pci_suspend, |
8297 | .resume = iwl3945_pci_resume, | |
b481de9c ZY |
8298 | #endif |
8299 | }; | |
8300 | ||
bb8c093b | 8301 | static int __init iwl3945_init(void) |
b481de9c ZY |
8302 | { |
8303 | ||
8304 | int ret; | |
8305 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
8306 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
8307 | |
8308 | ret = iwl3945_rate_control_register(); | |
8309 | if (ret) { | |
8310 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
8311 | return ret; | |
8312 | } | |
8313 | ||
bb8c093b | 8314 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c ZY |
8315 | if (ret) { |
8316 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 8317 | goto error_register; |
b481de9c | 8318 | } |
c8b0e6e1 | 8319 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8320 | ret = driver_create_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c ZY |
8321 | if (ret) { |
8322 | IWL_ERROR("Unable to create driver sysfs file\n"); | |
897e1cf2 | 8323 | goto error_debug; |
b481de9c ZY |
8324 | } |
8325 | #endif | |
8326 | ||
8327 | return ret; | |
897e1cf2 RC |
8328 | |
8329 | #ifdef CONFIG_IWL3945_DEBUG | |
8330 | error_debug: | |
8331 | pci_unregister_driver(&iwl3945_driver); | |
8332 | #endif | |
8333 | error_register: | |
8334 | iwl3945_rate_control_unregister(); | |
8335 | return ret; | |
b481de9c ZY |
8336 | } |
8337 | ||
bb8c093b | 8338 | static void __exit iwl3945_exit(void) |
b481de9c | 8339 | { |
c8b0e6e1 | 8340 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8341 | driver_remove_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c | 8342 | #endif |
bb8c093b | 8343 | pci_unregister_driver(&iwl3945_driver); |
897e1cf2 | 8344 | iwl3945_rate_control_unregister(); |
b481de9c ZY |
8345 | } |
8346 | ||
a0987a8d | 8347 | MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX)); |
25cb6cad | 8348 | |
bb8c093b | 8349 | module_param_named(antenna, iwl3945_param_antenna, int, 0444); |
b481de9c | 8350 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
bb8c093b | 8351 | module_param_named(disable, iwl3945_param_disable, int, 0444); |
b481de9c | 8352 | MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); |
bb8c093b | 8353 | module_param_named(hwcrypto, iwl3945_param_hwcrypto, int, 0444); |
b481de9c ZY |
8354 | MODULE_PARM_DESC(hwcrypto, |
8355 | "using hardware crypto engine (default 0 [software])\n"); | |
95aa194a | 8356 | module_param_named(debug, iwl3945_param_debug, uint, 0444); |
b481de9c | 8357 | MODULE_PARM_DESC(debug, "debug output mask"); |
bb8c093b | 8358 | module_param_named(disable_hw_scan, iwl3945_param_disable_hw_scan, int, 0444); |
b481de9c ZY |
8359 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
8360 | ||
bb8c093b | 8361 | module_param_named(queues_num, iwl3945_param_queues_num, int, 0444); |
b481de9c ZY |
8362 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
8363 | ||
bb8c093b CH |
8364 | module_exit(iwl3945_exit); |
8365 | module_init(iwl3945_init); |