Commit | Line | Data |
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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
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 CB |
67 | static int iwl3945_param_disable_hw_scan; /* def: 0 = use 3945's h/w scan */ |
68 | static int iwl3945_param_debug; /* def: 0 = minimal debug log messages */ | |
69 | static int iwl3945_param_disable; /* def: 0 = enable radio */ | |
9fbab516 | 70 | static int iwl3945_param_antenna; /* def: 0 = both antennas (use diversity) */ |
6440adb5 CB |
71 | int iwl3945_param_hwcrypto; /* def: 0 = use software encryption */ |
72 | static int iwl3945_param_qos_enable = 1; /* def: 1 = use quality of service */ | |
dfe7d458 | 73 | int iwl3945_param_queues_num = IWL39_MAX_NUM_QUEUES; /* def: 8 Tx queues */ |
b481de9c ZY |
74 | |
75 | /* | |
76 | * module name, copyright, version, etc. | |
77 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
78 | */ | |
79 | ||
80 | #define DRV_DESCRIPTION \ | |
81 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
82 | ||
c8b0e6e1 | 83 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
84 | #define VD "d" |
85 | #else | |
86 | #define VD | |
87 | #endif | |
88 | ||
c8b0e6e1 | 89 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
90 | #define VS "s" |
91 | #else | |
92 | #define VS | |
93 | #endif | |
94 | ||
b9e0b449 | 95 | #define IWLWIFI_VERSION "1.2.26k" VD VS |
eb7ae89c | 96 | #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation" |
b481de9c ZY |
97 | #define DRV_VERSION IWLWIFI_VERSION |
98 | ||
b481de9c ZY |
99 | |
100 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
101 | MODULE_VERSION(DRV_VERSION); | |
102 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
103 | MODULE_LICENSE("GPL"); | |
104 | ||
8318d78a JB |
105 | static const struct ieee80211_supported_band *iwl3945_get_band( |
106 | struct iwl3945_priv *priv, enum ieee80211_band band) | |
b481de9c | 107 | { |
8318d78a | 108 | return priv->hw->wiphy->bands[band]; |
b481de9c ZY |
109 | } |
110 | ||
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; | |
748 | goto out; | |
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 ZY |
1404 | struct ieee80211_hdr *hdr, |
1405 | const u8 *dest, int left) | |
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 ZY |
1508 | u32 r; |
1509 | int sz = sizeof(priv->eeprom); | |
1510 | int rc; | |
1511 | int i; | |
1512 | u16 addr; | |
1513 | ||
1514 | /* The EEPROM structure has several padding buffers within it | |
1515 | * and when adding new EEPROM maps is subject to programmer errors | |
1516 | * which may be very difficult to identify without explicitly | |
1517 | * checking the resulting size of the eeprom map. */ | |
1518 | BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE); | |
1519 | ||
1520 | if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) { | |
6f147926 | 1521 | IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x\n", gp); |
b481de9c ZY |
1522 | return -ENOENT; |
1523 | } | |
1524 | ||
6440adb5 | 1525 | /* Make sure driver (instead of uCode) is allowed to read EEPROM */ |
bb8c093b | 1526 | rc = iwl3945_eeprom_acquire_semaphore(priv); |
b481de9c | 1527 | if (rc < 0) { |
91e17473 | 1528 | IWL_ERROR("Failed to acquire EEPROM semaphore.\n"); |
b481de9c ZY |
1529 | return -ENOENT; |
1530 | } | |
1531 | ||
1532 | /* eeprom is an array of 16bit values */ | |
1533 | for (addr = 0; addr < sz; addr += sizeof(u16)) { | |
bb8c093b CH |
1534 | _iwl3945_write32(priv, CSR_EEPROM_REG, addr << 1); |
1535 | _iwl3945_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD); | |
b481de9c ZY |
1536 | |
1537 | for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT; | |
1538 | i += IWL_EEPROM_ACCESS_DELAY) { | |
bb8c093b | 1539 | r = _iwl3945_read_direct32(priv, CSR_EEPROM_REG); |
b481de9c ZY |
1540 | if (r & CSR_EEPROM_REG_READ_VALID_MSK) |
1541 | break; | |
1542 | udelay(IWL_EEPROM_ACCESS_DELAY); | |
1543 | } | |
1544 | ||
1545 | if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) { | |
6f147926 | 1546 | IWL_ERROR("Time out reading EEPROM[%d]\n", addr); |
b481de9c ZY |
1547 | return -ETIMEDOUT; |
1548 | } | |
58ff6d4d | 1549 | e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16)); |
b481de9c ZY |
1550 | } |
1551 | ||
1552 | return 0; | |
1553 | } | |
1554 | ||
bb8c093b | 1555 | static void iwl3945_unset_hw_setting(struct iwl3945_priv *priv) |
b481de9c ZY |
1556 | { |
1557 | if (priv->hw_setting.shared_virt) | |
1558 | pci_free_consistent(priv->pci_dev, | |
bb8c093b | 1559 | sizeof(struct iwl3945_shared), |
b481de9c ZY |
1560 | priv->hw_setting.shared_virt, |
1561 | priv->hw_setting.shared_phys); | |
1562 | } | |
1563 | ||
1564 | /** | |
bb8c093b | 1565 | * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
1566 | * |
1567 | * return : set the bit for each supported rate insert in ie | |
1568 | */ | |
bb8c093b | 1569 | static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 1570 | u16 basic_rate, int *left) |
b481de9c ZY |
1571 | { |
1572 | u16 ret_rates = 0, bit; | |
1573 | int i; | |
c7c46676 TW |
1574 | u8 *cnt = ie; |
1575 | u8 *rates = ie + 1; | |
b481de9c ZY |
1576 | |
1577 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
1578 | if (bit & supported_rate) { | |
1579 | ret_rates |= bit; | |
bb8c093b | 1580 | rates[*cnt] = iwl3945_rates[i].ieee | |
c7c46676 TW |
1581 | ((bit & basic_rate) ? 0x80 : 0x00); |
1582 | (*cnt)++; | |
1583 | (*left)--; | |
1584 | if ((*left <= 0) || | |
1585 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
1586 | break; |
1587 | } | |
1588 | } | |
1589 | ||
1590 | return ret_rates; | |
1591 | } | |
1592 | ||
1593 | /** | |
bb8c093b | 1594 | * iwl3945_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 1595 | */ |
bb8c093b | 1596 | static u16 iwl3945_fill_probe_req(struct iwl3945_priv *priv, |
b481de9c | 1597 | struct ieee80211_mgmt *frame, |
430cfe95 | 1598 | int left) |
b481de9c ZY |
1599 | { |
1600 | int len = 0; | |
1601 | u8 *pos = NULL; | |
c7c46676 | 1602 | u16 active_rates, ret_rates, cck_rates; |
b481de9c ZY |
1603 | |
1604 | /* Make sure there is enough space for the probe request, | |
1605 | * two mandatory IEs and the data */ | |
1606 | left -= 24; | |
1607 | if (left < 0) | |
1608 | return 0; | |
1609 | len += 24; | |
1610 | ||
1611 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
bb8c093b | 1612 | memcpy(frame->da, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c | 1613 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
bb8c093b | 1614 | memcpy(frame->bssid, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c ZY |
1615 | frame->seq_ctrl = 0; |
1616 | ||
1617 | /* fill in our indirect SSID IE */ | |
1618 | /* ...next IE... */ | |
1619 | ||
1620 | left -= 2; | |
1621 | if (left < 0) | |
1622 | return 0; | |
1623 | len += 2; | |
1624 | pos = &(frame->u.probe_req.variable[0]); | |
1625 | *pos++ = WLAN_EID_SSID; | |
1626 | *pos++ = 0; | |
1627 | ||
b481de9c ZY |
1628 | /* fill in supported rate */ |
1629 | /* ...next IE... */ | |
1630 | left -= 2; | |
1631 | if (left < 0) | |
1632 | return 0; | |
c7c46676 | 1633 | |
b481de9c ZY |
1634 | /* ... fill it in... */ |
1635 | *pos++ = WLAN_EID_SUPP_RATES; | |
1636 | *pos = 0; | |
c7c46676 TW |
1637 | |
1638 | priv->active_rate = priv->rates_mask; | |
1639 | active_rates = priv->active_rate; | |
b481de9c ZY |
1640 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; |
1641 | ||
c7c46676 | 1642 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 1643 | ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates, |
c7c46676 TW |
1644 | priv->active_rate_basic, &left); |
1645 | active_rates &= ~ret_rates; | |
1646 | ||
bb8c093b | 1647 | ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 TW |
1648 | priv->active_rate_basic, &left); |
1649 | active_rates &= ~ret_rates; | |
1650 | ||
b481de9c ZY |
1651 | len += 2 + *pos; |
1652 | pos += (*pos) + 1; | |
c7c46676 | 1653 | if (active_rates == 0) |
b481de9c ZY |
1654 | goto fill_end; |
1655 | ||
1656 | /* fill in supported extended rate */ | |
1657 | /* ...next IE... */ | |
1658 | left -= 2; | |
1659 | if (left < 0) | |
1660 | return 0; | |
1661 | /* ... fill it in... */ | |
1662 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
1663 | *pos = 0; | |
bb8c093b | 1664 | iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 | 1665 | priv->active_rate_basic, &left); |
b481de9c ZY |
1666 | if (*pos > 0) |
1667 | len += 2 + *pos; | |
1668 | ||
1669 | fill_end: | |
1670 | return (u16)len; | |
1671 | } | |
1672 | ||
1673 | /* | |
1674 | * QoS support | |
1675 | */ | |
bb8c093b CH |
1676 | static int iwl3945_send_qos_params_command(struct iwl3945_priv *priv, |
1677 | struct iwl3945_qosparam_cmd *qos) | |
b481de9c ZY |
1678 | { |
1679 | ||
bb8c093b CH |
1680 | return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
1681 | sizeof(struct iwl3945_qosparam_cmd), qos); | |
b481de9c ZY |
1682 | } |
1683 | ||
bb8c093b | 1684 | static void iwl3945_reset_qos(struct iwl3945_priv *priv) |
b481de9c ZY |
1685 | { |
1686 | u16 cw_min = 15; | |
1687 | u16 cw_max = 1023; | |
1688 | u8 aifs = 2; | |
1689 | u8 is_legacy = 0; | |
1690 | unsigned long flags; | |
1691 | int i; | |
1692 | ||
1693 | spin_lock_irqsave(&priv->lock, flags); | |
1694 | priv->qos_data.qos_active = 0; | |
1695 | ||
05c914fe | 1696 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) { |
b481de9c ZY |
1697 | if (priv->qos_data.qos_enable) |
1698 | priv->qos_data.qos_active = 1; | |
1699 | if (!(priv->active_rate & 0xfff0)) { | |
1700 | cw_min = 31; | |
1701 | is_legacy = 1; | |
1702 | } | |
05c914fe | 1703 | } else if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
1704 | if (priv->qos_data.qos_enable) |
1705 | priv->qos_data.qos_active = 1; | |
1706 | } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) { | |
1707 | cw_min = 31; | |
1708 | is_legacy = 1; | |
1709 | } | |
1710 | ||
1711 | if (priv->qos_data.qos_active) | |
1712 | aifs = 3; | |
1713 | ||
1714 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); | |
1715 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); | |
1716 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; | |
1717 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; | |
1718 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; | |
1719 | ||
1720 | if (priv->qos_data.qos_active) { | |
1721 | i = 1; | |
1722 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); | |
1723 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); | |
1724 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; | |
1725 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1726 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1727 | ||
1728 | i = 2; | |
1729 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1730 | cpu_to_le16((cw_min + 1) / 2 - 1); | |
1731 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1732 | cpu_to_le16(cw_max); | |
1733 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1734 | if (is_legacy) | |
1735 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1736 | cpu_to_le16(6016); | |
1737 | else | |
1738 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1739 | cpu_to_le16(3008); | |
1740 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1741 | ||
1742 | i = 3; | |
1743 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1744 | cpu_to_le16((cw_min + 1) / 4 - 1); | |
1745 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1746 | cpu_to_le16((cw_max + 1) / 2 - 1); | |
1747 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1748 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1749 | if (is_legacy) | |
1750 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1751 | cpu_to_le16(3264); | |
1752 | else | |
1753 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1754 | cpu_to_le16(1504); | |
1755 | } else { | |
1756 | for (i = 1; i < 4; i++) { | |
1757 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1758 | cpu_to_le16(cw_min); | |
1759 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1760 | cpu_to_le16(cw_max); | |
1761 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; | |
1762 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1763 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1764 | } | |
1765 | } | |
1766 | IWL_DEBUG_QOS("set QoS to default \n"); | |
1767 | ||
1768 | spin_unlock_irqrestore(&priv->lock, flags); | |
1769 | } | |
1770 | ||
bb8c093b | 1771 | static void iwl3945_activate_qos(struct iwl3945_priv *priv, u8 force) |
b481de9c ZY |
1772 | { |
1773 | unsigned long flags; | |
1774 | ||
b481de9c ZY |
1775 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
1776 | return; | |
1777 | ||
1778 | if (!priv->qos_data.qos_enable) | |
1779 | return; | |
1780 | ||
1781 | spin_lock_irqsave(&priv->lock, flags); | |
1782 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
1783 | ||
1784 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
1785 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
1786 | priv->qos_data.def_qos_parm.qos_flags |= | |
1787 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
1788 | ||
1789 | if (priv->qos_data.qos_active) | |
1790 | priv->qos_data.def_qos_parm.qos_flags |= | |
1791 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
1792 | ||
1793 | spin_unlock_irqrestore(&priv->lock, flags); | |
1794 | ||
bb8c093b | 1795 | if (force || iwl3945_is_associated(priv)) { |
a96a27f9 | 1796 | IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n", |
b481de9c ZY |
1797 | priv->qos_data.qos_active); |
1798 | ||
bb8c093b | 1799 | iwl3945_send_qos_params_command(priv, |
b481de9c ZY |
1800 | &(priv->qos_data.def_qos_parm)); |
1801 | } | |
1802 | } | |
1803 | ||
b481de9c ZY |
1804 | /* |
1805 | * Power management (not Tx power!) functions | |
1806 | */ | |
1807 | #define MSEC_TO_USEC 1024 | |
1808 | ||
1809 | #define NOSLP __constant_cpu_to_le32(0) | |
1810 | #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK | |
1811 | #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC) | |
1812 | #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \ | |
1813 | __constant_cpu_to_le32(X1), \ | |
1814 | __constant_cpu_to_le32(X2), \ | |
1815 | __constant_cpu_to_le32(X3), \ | |
1816 | __constant_cpu_to_le32(X4)} | |
1817 | ||
1818 | ||
1819 | /* default power management (not Tx power) table values */ | |
a96a27f9 | 1820 | /* for TIM 0-10 */ |
bb8c093b | 1821 | static struct iwl3945_power_vec_entry range_0[IWL_POWER_AC] = { |
b481de9c ZY |
1822 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1823 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0}, | |
1824 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0}, | |
1825 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0}, | |
1826 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1}, | |
1827 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1} | |
1828 | }; | |
1829 | ||
a96a27f9 | 1830 | /* for TIM > 10 */ |
bb8c093b | 1831 | static struct iwl3945_power_vec_entry range_1[IWL_POWER_AC] = { |
b481de9c ZY |
1832 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1833 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), | |
1834 | SLP_VEC(1, 2, 3, 4, 0xFF)}, 0}, | |
1835 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), | |
1836 | SLP_VEC(2, 4, 6, 7, 0xFF)}, 0}, | |
1837 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), | |
1838 | SLP_VEC(2, 6, 9, 9, 0xFF)}, 0}, | |
1839 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0}, | |
1840 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), | |
1841 | SLP_VEC(4, 7, 10, 10, 0xFF)}, 0} | |
1842 | }; | |
1843 | ||
bb8c093b | 1844 | int iwl3945_power_init_handle(struct iwl3945_priv *priv) |
b481de9c ZY |
1845 | { |
1846 | int rc = 0, i; | |
bb8c093b CH |
1847 | struct iwl3945_power_mgr *pow_data; |
1848 | int size = sizeof(struct iwl3945_power_vec_entry) * IWL_POWER_AC; | |
b481de9c ZY |
1849 | u16 pci_pm; |
1850 | ||
1851 | IWL_DEBUG_POWER("Initialize power \n"); | |
1852 | ||
1853 | pow_data = &(priv->power_data); | |
1854 | ||
1855 | memset(pow_data, 0, sizeof(*pow_data)); | |
1856 | ||
1857 | pow_data->active_index = IWL_POWER_RANGE_0; | |
1858 | pow_data->dtim_val = 0xffff; | |
1859 | ||
1860 | memcpy(&pow_data->pwr_range_0[0], &range_0[0], size); | |
1861 | memcpy(&pow_data->pwr_range_1[0], &range_1[0], size); | |
1862 | ||
1863 | rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm); | |
1864 | if (rc != 0) | |
1865 | return 0; | |
1866 | else { | |
bb8c093b | 1867 | struct iwl3945_powertable_cmd *cmd; |
b481de9c ZY |
1868 | |
1869 | IWL_DEBUG_POWER("adjust power command flags\n"); | |
1870 | ||
1871 | for (i = 0; i < IWL_POWER_AC; i++) { | |
1872 | cmd = &pow_data->pwr_range_0[i].cmd; | |
1873 | ||
1874 | if (pci_pm & 0x1) | |
1875 | cmd->flags &= ~IWL_POWER_PCI_PM_MSK; | |
1876 | else | |
1877 | cmd->flags |= IWL_POWER_PCI_PM_MSK; | |
1878 | } | |
1879 | } | |
1880 | return rc; | |
1881 | } | |
1882 | ||
bb8c093b CH |
1883 | static int iwl3945_update_power_cmd(struct iwl3945_priv *priv, |
1884 | struct iwl3945_powertable_cmd *cmd, u32 mode) | |
b481de9c ZY |
1885 | { |
1886 | int rc = 0, i; | |
1887 | u8 skip; | |
1888 | u32 max_sleep = 0; | |
bb8c093b | 1889 | struct iwl3945_power_vec_entry *range; |
b481de9c | 1890 | u8 period = 0; |
bb8c093b | 1891 | struct iwl3945_power_mgr *pow_data; |
b481de9c ZY |
1892 | |
1893 | if (mode > IWL_POWER_INDEX_5) { | |
1894 | IWL_DEBUG_POWER("Error invalid power mode \n"); | |
1895 | return -1; | |
1896 | } | |
1897 | pow_data = &(priv->power_data); | |
1898 | ||
1899 | if (pow_data->active_index == IWL_POWER_RANGE_0) | |
1900 | range = &pow_data->pwr_range_0[0]; | |
1901 | else | |
1902 | range = &pow_data->pwr_range_1[1]; | |
1903 | ||
bb8c093b | 1904 | memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd)); |
b481de9c ZY |
1905 | |
1906 | #ifdef IWL_MAC80211_DISABLE | |
1907 | if (priv->assoc_network != NULL) { | |
1908 | unsigned long flags; | |
1909 | ||
1910 | period = priv->assoc_network->tim.tim_period; | |
1911 | } | |
1912 | #endif /*IWL_MAC80211_DISABLE */ | |
1913 | skip = range[mode].no_dtim; | |
1914 | ||
1915 | if (period == 0) { | |
1916 | period = 1; | |
1917 | skip = 0; | |
1918 | } | |
1919 | ||
1920 | if (skip == 0) { | |
1921 | max_sleep = period; | |
1922 | cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1923 | } else { | |
1924 | __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]; | |
1925 | max_sleep = (le32_to_cpu(slp_itrvl) / period) * period; | |
1926 | cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1927 | } | |
1928 | ||
1929 | for (i = 0; i < IWL_POWER_VEC_SIZE; i++) { | |
1930 | if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep) | |
1931 | cmd->sleep_interval[i] = cpu_to_le32(max_sleep); | |
1932 | } | |
1933 | ||
1934 | IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags); | |
1935 | IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout)); | |
1936 | IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout)); | |
1937 | IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n", | |
1938 | le32_to_cpu(cmd->sleep_interval[0]), | |
1939 | le32_to_cpu(cmd->sleep_interval[1]), | |
1940 | le32_to_cpu(cmd->sleep_interval[2]), | |
1941 | le32_to_cpu(cmd->sleep_interval[3]), | |
1942 | le32_to_cpu(cmd->sleep_interval[4])); | |
1943 | ||
1944 | return rc; | |
1945 | } | |
1946 | ||
bb8c093b | 1947 | static int iwl3945_send_power_mode(struct iwl3945_priv *priv, u32 mode) |
b481de9c | 1948 | { |
9a62f73b | 1949 | u32 uninitialized_var(final_mode); |
b481de9c | 1950 | int rc; |
bb8c093b | 1951 | struct iwl3945_powertable_cmd cmd; |
b481de9c ZY |
1952 | |
1953 | /* If on battery, set to 3, | |
01ebd063 | 1954 | * if plugged into AC power, set to CAM ("continuously aware mode"), |
b481de9c ZY |
1955 | * else user level */ |
1956 | switch (mode) { | |
1957 | case IWL_POWER_BATTERY: | |
1958 | final_mode = IWL_POWER_INDEX_3; | |
1959 | break; | |
1960 | case IWL_POWER_AC: | |
1961 | final_mode = IWL_POWER_MODE_CAM; | |
1962 | break; | |
1963 | default: | |
1964 | final_mode = mode; | |
1965 | break; | |
1966 | } | |
1967 | ||
bb8c093b | 1968 | iwl3945_update_power_cmd(priv, &cmd, final_mode); |
b481de9c | 1969 | |
bb8c093b | 1970 | rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd); |
b481de9c ZY |
1971 | |
1972 | if (final_mode == IWL_POWER_MODE_CAM) | |
1973 | clear_bit(STATUS_POWER_PMI, &priv->status); | |
1974 | else | |
1975 | set_bit(STATUS_POWER_PMI, &priv->status); | |
1976 | ||
1977 | return rc; | |
1978 | } | |
1979 | ||
b481de9c | 1980 | /** |
bb8c093b | 1981 | * iwl3945_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
1982 | * |
1983 | * NOTE: priv->mutex is not required before calling this function | |
1984 | */ | |
bb8c093b | 1985 | static int iwl3945_scan_cancel(struct iwl3945_priv *priv) |
b481de9c ZY |
1986 | { |
1987 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1988 | clear_bit(STATUS_SCANNING, &priv->status); | |
1989 | return 0; | |
1990 | } | |
1991 | ||
1992 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1993 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1994 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
1995 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1996 | queue_work(priv->workqueue, &priv->abort_scan); | |
1997 | ||
1998 | } else | |
1999 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
2000 | ||
2001 | return test_bit(STATUS_SCANNING, &priv->status); | |
2002 | } | |
2003 | ||
2004 | return 0; | |
2005 | } | |
2006 | ||
2007 | /** | |
bb8c093b | 2008 | * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
2009 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
2010 | * | |
2011 | * NOTE: priv->mutex must be held before calling this function | |
2012 | */ | |
bb8c093b | 2013 | static int iwl3945_scan_cancel_timeout(struct iwl3945_priv *priv, unsigned long ms) |
b481de9c ZY |
2014 | { |
2015 | unsigned long now = jiffies; | |
2016 | int ret; | |
2017 | ||
bb8c093b | 2018 | ret = iwl3945_scan_cancel(priv); |
b481de9c ZY |
2019 | if (ret && ms) { |
2020 | mutex_unlock(&priv->mutex); | |
2021 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
2022 | test_bit(STATUS_SCANNING, &priv->status)) | |
2023 | msleep(1); | |
2024 | mutex_lock(&priv->mutex); | |
2025 | ||
2026 | return test_bit(STATUS_SCANNING, &priv->status); | |
2027 | } | |
2028 | ||
2029 | return ret; | |
2030 | } | |
2031 | ||
b481de9c ZY |
2032 | #define MAX_UCODE_BEACON_INTERVAL 1024 |
2033 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
2034 | ||
bb8c093b | 2035 | static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
2036 | { |
2037 | u16 new_val = 0; | |
2038 | u16 beacon_factor = 0; | |
2039 | ||
2040 | beacon_factor = | |
2041 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
2042 | / MAX_UCODE_BEACON_INTERVAL; | |
2043 | new_val = beacon_val / beacon_factor; | |
2044 | ||
2045 | return cpu_to_le16(new_val); | |
2046 | } | |
2047 | ||
bb8c093b | 2048 | static void iwl3945_setup_rxon_timing(struct iwl3945_priv *priv) |
b481de9c ZY |
2049 | { |
2050 | u64 interval_tm_unit; | |
2051 | u64 tsf, result; | |
2052 | unsigned long flags; | |
2053 | struct ieee80211_conf *conf = NULL; | |
2054 | u16 beacon_int = 0; | |
2055 | ||
2056 | conf = ieee80211_get_hw_conf(priv->hw); | |
2057 | ||
2058 | spin_lock_irqsave(&priv->lock, flags); | |
2059 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1); | |
2060 | priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0); | |
2061 | ||
2062 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
2063 | ||
2064 | tsf = priv->timestamp1; | |
2065 | tsf = ((tsf << 32) | priv->timestamp0); | |
2066 | ||
2067 | beacon_int = priv->beacon_int; | |
2068 | spin_unlock_irqrestore(&priv->lock, flags); | |
2069 | ||
05c914fe | 2070 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
b481de9c ZY |
2071 | if (beacon_int == 0) { |
2072 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
2073 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
2074 | } else { | |
2075 | priv->rxon_timing.beacon_interval = | |
2076 | cpu_to_le16(beacon_int); | |
2077 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2078 | iwl3945_adjust_beacon_interval( |
b481de9c ZY |
2079 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
2080 | } | |
2081 | ||
2082 | priv->rxon_timing.atim_window = 0; | |
2083 | } else { | |
2084 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2085 | iwl3945_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
2086 | /* TODO: we need to get atim_window from upper stack |
2087 | * for now we set to 0 */ | |
2088 | priv->rxon_timing.atim_window = 0; | |
2089 | } | |
2090 | ||
2091 | interval_tm_unit = | |
2092 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
2093 | result = do_div(tsf, interval_tm_unit); | |
2094 | priv->rxon_timing.beacon_init_val = | |
2095 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
2096 | ||
2097 | IWL_DEBUG_ASSOC | |
2098 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
2099 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
2100 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
2101 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
2102 | } | |
2103 | ||
bb8c093b | 2104 | static int iwl3945_scan_initiate(struct iwl3945_priv *priv) |
b481de9c | 2105 | { |
05c914fe | 2106 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
2107 | IWL_ERROR("APs don't scan.\n"); |
2108 | return 0; | |
2109 | } | |
2110 | ||
bb8c093b | 2111 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
2112 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
2113 | return -EIO; | |
2114 | } | |
2115 | ||
2116 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
2117 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
2118 | return -EAGAIN; | |
2119 | } | |
2120 | ||
2121 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2122 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
2123 | "Queuing.\n"); | |
2124 | return -EAGAIN; | |
2125 | } | |
2126 | ||
2127 | IWL_DEBUG_INFO("Starting scan...\n"); | |
66b5004d RR |
2128 | if (priv->cfg->sku & IWL_SKU_G) |
2129 | priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ); | |
2130 | if (priv->cfg->sku & IWL_SKU_A) | |
2131 | priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
2132 | set_bit(STATUS_SCANNING, &priv->status); |
2133 | priv->scan_start = jiffies; | |
2134 | priv->scan_pass_start = priv->scan_start; | |
2135 | ||
2136 | queue_work(priv->workqueue, &priv->request_scan); | |
2137 | ||
2138 | return 0; | |
2139 | } | |
2140 | ||
bb8c093b | 2141 | static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv *priv, int hw_decrypt) |
b481de9c | 2142 | { |
bb8c093b | 2143 | struct iwl3945_rxon_cmd *rxon = &priv->staging_rxon; |
b481de9c ZY |
2144 | |
2145 | if (hw_decrypt) | |
2146 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
2147 | else | |
2148 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
2149 | ||
2150 | return 0; | |
2151 | } | |
2152 | ||
8318d78a JB |
2153 | static void iwl3945_set_flags_for_phymode(struct iwl3945_priv *priv, |
2154 | enum ieee80211_band band) | |
b481de9c | 2155 | { |
8318d78a | 2156 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
2157 | priv->staging_rxon.flags &= |
2158 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
2159 | | RXON_FLG_CCK_MSK); | |
2160 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2161 | } else { | |
bb8c093b | 2162 | /* Copied from iwl3945_bg_post_associate() */ |
b481de9c ZY |
2163 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
2164 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2165 | else | |
2166 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2167 | ||
05c914fe | 2168 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2169 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
2170 | ||
2171 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
2172 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
2173 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
2174 | } | |
2175 | } | |
2176 | ||
2177 | /* | |
01ebd063 | 2178 | * initialize rxon structure with default values from eeprom |
b481de9c | 2179 | */ |
60294de3 ZY |
2180 | static void iwl3945_connection_init_rx_config(struct iwl3945_priv *priv, |
2181 | int mode) | |
b481de9c | 2182 | { |
bb8c093b | 2183 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
2184 | |
2185 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
2186 | ||
60294de3 | 2187 | switch (mode) { |
05c914fe | 2188 | case NL80211_IFTYPE_AP: |
b481de9c ZY |
2189 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; |
2190 | break; | |
2191 | ||
05c914fe | 2192 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2193 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; |
2194 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
2195 | break; | |
2196 | ||
05c914fe | 2197 | case NL80211_IFTYPE_ADHOC: |
b481de9c ZY |
2198 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; |
2199 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
2200 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
2201 | RXON_FILTER_ACCEPT_GRP_MSK; | |
2202 | break; | |
2203 | ||
05c914fe | 2204 | case NL80211_IFTYPE_MONITOR: |
b481de9c ZY |
2205 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; |
2206 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
2207 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
2208 | break; | |
69dc5d9d | 2209 | default: |
60294de3 | 2210 | IWL_ERROR("Unsupported interface type %d\n", mode); |
69dc5d9d | 2211 | break; |
b481de9c ZY |
2212 | } |
2213 | ||
2214 | #if 0 | |
2215 | /* TODO: Figure out when short_preamble would be set and cache from | |
2216 | * that */ | |
2217 | if (!hw_to_local(priv->hw)->short_preamble) | |
2218 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2219 | else | |
2220 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2221 | #endif | |
2222 | ||
8318d78a | 2223 | ch_info = iwl3945_get_channel_info(priv, priv->band, |
25b3f57c | 2224 | le16_to_cpu(priv->active_rxon.channel)); |
b481de9c ZY |
2225 | |
2226 | if (!ch_info) | |
2227 | ch_info = &priv->channel_info[0]; | |
2228 | ||
2229 | /* | |
2230 | * in some case A channels are all non IBSS | |
2231 | * in this case force B/G channel | |
2232 | */ | |
60294de3 | 2233 | if ((mode == NL80211_IFTYPE_ADHOC) && !(is_channel_ibss(ch_info))) |
b481de9c ZY |
2234 | ch_info = &priv->channel_info[0]; |
2235 | ||
2236 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
2237 | if (is_channel_a_band(ch_info)) | |
8318d78a | 2238 | priv->band = IEEE80211_BAND_5GHZ; |
b481de9c | 2239 | else |
8318d78a | 2240 | priv->band = IEEE80211_BAND_2GHZ; |
b481de9c | 2241 | |
8318d78a | 2242 | iwl3945_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
2243 | |
2244 | priv->staging_rxon.ofdm_basic_rates = | |
2245 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2246 | priv->staging_rxon.cck_basic_rates = | |
2247 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2248 | } | |
2249 | ||
bb8c093b | 2250 | static int iwl3945_set_mode(struct iwl3945_priv *priv, int mode) |
b481de9c | 2251 | { |
05c914fe | 2252 | if (mode == NL80211_IFTYPE_ADHOC) { |
bb8c093b | 2253 | const struct iwl3945_channel_info *ch_info; |
b481de9c | 2254 | |
bb8c093b | 2255 | ch_info = iwl3945_get_channel_info(priv, |
8318d78a | 2256 | priv->band, |
b481de9c ZY |
2257 | le16_to_cpu(priv->staging_rxon.channel)); |
2258 | ||
2259 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
2260 | IWL_ERROR("channel %d not IBSS channel\n", | |
2261 | le16_to_cpu(priv->staging_rxon.channel)); | |
2262 | return -EINVAL; | |
2263 | } | |
2264 | } | |
2265 | ||
60294de3 | 2266 | iwl3945_connection_init_rx_config(priv, mode); |
b481de9c ZY |
2267 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2268 | ||
bb8c093b | 2269 | iwl3945_clear_stations_table(priv); |
b481de9c | 2270 | |
a96a27f9 | 2271 | /* don't commit rxon if rf-kill is on*/ |
fde3571f MA |
2272 | if (!iwl3945_is_ready_rf(priv)) |
2273 | return -EAGAIN; | |
2274 | ||
2275 | cancel_delayed_work(&priv->scan_check); | |
2276 | if (iwl3945_scan_cancel_timeout(priv, 100)) { | |
2277 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
2278 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2279 | return -EAGAIN; | |
2280 | } | |
2281 | ||
bb8c093b | 2282 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
2283 | |
2284 | return 0; | |
2285 | } | |
2286 | ||
bb8c093b | 2287 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv *priv, |
e039fa4a | 2288 | struct ieee80211_tx_info *info, |
bb8c093b | 2289 | struct iwl3945_cmd *cmd, |
b481de9c ZY |
2290 | struct sk_buff *skb_frag, |
2291 | int last_frag) | |
2292 | { | |
1c014420 | 2293 | struct iwl3945_hw_key *keyinfo = |
e039fa4a | 2294 | &priv->stations[info->control.hw_key->hw_key_idx].keyinfo; |
b481de9c ZY |
2295 | |
2296 | switch (keyinfo->alg) { | |
2297 | case ALG_CCMP: | |
2298 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM; | |
2299 | memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen); | |
a96a27f9 | 2300 | IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n"); |
b481de9c ZY |
2301 | break; |
2302 | ||
2303 | case ALG_TKIP: | |
2304 | #if 0 | |
2305 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP; | |
2306 | ||
2307 | if (last_frag) | |
2308 | memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8, | |
2309 | 8); | |
2310 | else | |
2311 | memset(cmd->cmd.tx.tkip_mic.byte, 0, 8); | |
2312 | #endif | |
2313 | break; | |
2314 | ||
2315 | case ALG_WEP: | |
2316 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP | | |
e039fa4a | 2317 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
b481de9c ZY |
2318 | |
2319 | if (keyinfo->keylen == 13) | |
2320 | cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128; | |
2321 | ||
2322 | memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen); | |
2323 | ||
2324 | IWL_DEBUG_TX("Configuring packet for WEP encryption " | |
e039fa4a | 2325 | "with key %d\n", info->control.hw_key->hw_key_idx); |
b481de9c ZY |
2326 | break; |
2327 | ||
b481de9c ZY |
2328 | default: |
2329 | printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg); | |
2330 | break; | |
2331 | } | |
2332 | } | |
2333 | ||
2334 | /* | |
2335 | * handle build REPLY_TX command notification. | |
2336 | */ | |
bb8c093b CH |
2337 | static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, |
2338 | struct iwl3945_cmd *cmd, | |
e039fa4a | 2339 | struct ieee80211_tx_info *info, |
b481de9c ZY |
2340 | struct ieee80211_hdr *hdr, |
2341 | int is_unicast, u8 std_id) | |
2342 | { | |
fd7c8a40 | 2343 | __le16 fc = hdr->frame_control; |
b481de9c | 2344 | __le32 tx_flags = cmd->cmd.tx.tx_flags; |
e6a9854b | 2345 | u8 rc_flags = info->control.rates[0].flags; |
b481de9c ZY |
2346 | |
2347 | cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
e039fa4a | 2348 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
b481de9c | 2349 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
fd7c8a40 | 2350 | if (ieee80211_is_mgmt(fc)) |
b481de9c | 2351 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
fd7c8a40 | 2352 | if (ieee80211_is_probe_resp(fc) && |
b481de9c ZY |
2353 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
2354 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
2355 | } else { | |
2356 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
2357 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
2358 | } | |
2359 | ||
2360 | cmd->cmd.tx.sta_id = std_id; | |
8b7b1e05 | 2361 | if (ieee80211_has_morefrags(fc)) |
b481de9c ZY |
2362 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
2363 | ||
fd7c8a40 HH |
2364 | if (ieee80211_is_data_qos(fc)) { |
2365 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
54dbb525 | 2366 | cmd->cmd.tx.tid_tspec = qc[0] & 0xf; |
b481de9c | 2367 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2368 | } else { |
b481de9c | 2369 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2370 | } |
b481de9c | 2371 | |
e6a9854b | 2372 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
b481de9c ZY |
2373 | tx_flags |= TX_CMD_FLG_RTS_MSK; |
2374 | tx_flags &= ~TX_CMD_FLG_CTS_MSK; | |
e6a9854b | 2375 | } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
b481de9c ZY |
2376 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; |
2377 | tx_flags |= TX_CMD_FLG_CTS_MSK; | |
2378 | } | |
2379 | ||
2380 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
2381 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
2382 | ||
2383 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
fd7c8a40 HH |
2384 | if (ieee80211_is_mgmt(fc)) { |
2385 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
bc434dd2 | 2386 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 2387 | else |
bc434dd2 | 2388 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2); |
ab53d8af | 2389 | } else { |
b481de9c | 2390 | cmd->cmd.tx.timeout.pm_frame_timeout = 0; |
ab53d8af MA |
2391 | #ifdef CONFIG_IWL3945_LEDS |
2392 | priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len); | |
2393 | #endif | |
2394 | } | |
b481de9c ZY |
2395 | |
2396 | cmd->cmd.tx.driver_txop = 0; | |
2397 | cmd->cmd.tx.tx_flags = tx_flags; | |
2398 | cmd->cmd.tx.next_frame_len = 0; | |
2399 | } | |
2400 | ||
6440adb5 CB |
2401 | /** |
2402 | * iwl3945_get_sta_id - Find station's index within station table | |
2403 | */ | |
bb8c093b | 2404 | static int iwl3945_get_sta_id(struct iwl3945_priv *priv, struct ieee80211_hdr *hdr) |
b481de9c ZY |
2405 | { |
2406 | int sta_id; | |
2407 | u16 fc = le16_to_cpu(hdr->frame_control); | |
2408 | ||
6440adb5 | 2409 | /* If this frame is broadcast or management, use broadcast station id */ |
b481de9c ZY |
2410 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
2411 | is_multicast_ether_addr(hdr->addr1)) | |
2412 | return priv->hw_setting.bcast_sta_id; | |
2413 | ||
2414 | switch (priv->iw_mode) { | |
2415 | ||
6440adb5 CB |
2416 | /* If we are a client station in a BSS network, use the special |
2417 | * AP station entry (that's the only station we communicate with) */ | |
05c914fe | 2418 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2419 | return IWL_AP_ID; |
2420 | ||
2421 | /* If we are an AP, then find the station, or use BCAST */ | |
05c914fe | 2422 | case NL80211_IFTYPE_AP: |
bb8c093b | 2423 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2424 | if (sta_id != IWL_INVALID_STATION) |
2425 | return sta_id; | |
2426 | return priv->hw_setting.bcast_sta_id; | |
2427 | ||
6440adb5 CB |
2428 | /* If this frame is going out to an IBSS network, find the station, |
2429 | * or create a new station table entry */ | |
05c914fe | 2430 | case NL80211_IFTYPE_ADHOC: { |
6440adb5 | 2431 | /* Create new station table entry */ |
bb8c093b | 2432 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2433 | if (sta_id != IWL_INVALID_STATION) |
2434 | return sta_id; | |
2435 | ||
bb8c093b | 2436 | sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC); |
b481de9c ZY |
2437 | |
2438 | if (sta_id != IWL_INVALID_STATION) | |
2439 | return sta_id; | |
2440 | ||
e174961c | 2441 | IWL_DEBUG_DROP("Station %pM not in station map. " |
b481de9c | 2442 | "Defaulting to broadcast...\n", |
e174961c | 2443 | hdr->addr1); |
bb8c093b | 2444 | iwl3945_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
b481de9c | 2445 | return priv->hw_setting.bcast_sta_id; |
0795af57 | 2446 | } |
914233d6 SG |
2447 | /* If we are in monitor mode, use BCAST. This is required for |
2448 | * packet injection. */ | |
05c914fe | 2449 | case NL80211_IFTYPE_MONITOR: |
914233d6 SG |
2450 | return priv->hw_setting.bcast_sta_id; |
2451 | ||
b481de9c | 2452 | default: |
6f147926 | 2453 | IWL_WARNING("Unknown mode of operation: %d\n", priv->iw_mode); |
b481de9c ZY |
2454 | return priv->hw_setting.bcast_sta_id; |
2455 | } | |
2456 | } | |
2457 | ||
2458 | /* | |
2459 | * start REPLY_TX command process | |
2460 | */ | |
e039fa4a | 2461 | static int iwl3945_tx_skb(struct iwl3945_priv *priv, struct sk_buff *skb) |
b481de9c ZY |
2462 | { |
2463 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
e039fa4a | 2464 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bb8c093b | 2465 | struct iwl3945_tfd_frame *tfd; |
b481de9c | 2466 | u32 *control_flags; |
e2530083 | 2467 | int txq_id = skb_get_queue_mapping(skb); |
bb8c093b CH |
2468 | struct iwl3945_tx_queue *txq = NULL; |
2469 | struct iwl3945_queue *q = NULL; | |
b481de9c ZY |
2470 | dma_addr_t phys_addr; |
2471 | dma_addr_t txcmd_phys; | |
bb8c093b | 2472 | struct iwl3945_cmd *out_cmd = NULL; |
54dbb525 TW |
2473 | u16 len, idx, len_org, hdr_len; |
2474 | u8 id; | |
2475 | u8 unicast; | |
b481de9c | 2476 | u8 sta_id; |
54dbb525 | 2477 | u8 tid = 0; |
b481de9c | 2478 | u16 seq_number = 0; |
fd7c8a40 | 2479 | __le16 fc; |
b481de9c | 2480 | u8 wait_write_ptr = 0; |
54dbb525 | 2481 | u8 *qc = NULL; |
b481de9c ZY |
2482 | unsigned long flags; |
2483 | int rc; | |
2484 | ||
2485 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2486 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
2487 | IWL_DEBUG_DROP("Dropping - RF KILL\n"); |
2488 | goto drop_unlock; | |
2489 | } | |
2490 | ||
e039fa4a | 2491 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
b481de9c ZY |
2492 | IWL_ERROR("ERROR: No TX rate available.\n"); |
2493 | goto drop_unlock; | |
2494 | } | |
2495 | ||
2496 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
2497 | id = 0; | |
2498 | ||
fd7c8a40 | 2499 | fc = hdr->frame_control; |
b481de9c | 2500 | |
c8b0e6e1 | 2501 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
2502 | if (ieee80211_is_auth(fc)) |
2503 | IWL_DEBUG_TX("Sending AUTH frame\n"); | |
fd7c8a40 | 2504 | else if (ieee80211_is_assoc_req(fc)) |
b481de9c | 2505 | IWL_DEBUG_TX("Sending ASSOC frame\n"); |
fd7c8a40 | 2506 | else if (ieee80211_is_reassoc_req(fc)) |
b481de9c ZY |
2507 | IWL_DEBUG_TX("Sending REASSOC frame\n"); |
2508 | #endif | |
2509 | ||
7878a5a4 | 2510 | /* drop all data frame if we are not associated */ |
914233d6 | 2511 | if (ieee80211_is_data(fc) && |
05c914fe | 2512 | (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */ |
914233d6 | 2513 | (!iwl3945_is_associated(priv) || |
05c914fe | 2514 | ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) { |
bb8c093b | 2515 | IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n"); |
b481de9c ZY |
2516 | goto drop_unlock; |
2517 | } | |
2518 | ||
2519 | spin_unlock_irqrestore(&priv->lock, flags); | |
2520 | ||
7294ec95 | 2521 | hdr_len = ieee80211_hdrlen(fc); |
6440adb5 CB |
2522 | |
2523 | /* Find (or create) index into station table for destination station */ | |
bb8c093b | 2524 | sta_id = iwl3945_get_sta_id(priv, hdr); |
b481de9c | 2525 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
2526 | IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n", |
2527 | hdr->addr1); | |
b481de9c ZY |
2528 | goto drop; |
2529 | } | |
2530 | ||
2531 | IWL_DEBUG_RATE("station Id %d\n", sta_id); | |
2532 | ||
fd7c8a40 HH |
2533 | if (ieee80211_is_data_qos(fc)) { |
2534 | qc = ieee80211_get_qos_ctl(hdr); | |
7294ec95 | 2535 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
b481de9c ZY |
2536 | seq_number = priv->stations[sta_id].tid[tid].seq_number & |
2537 | IEEE80211_SCTL_SEQ; | |
2538 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
2539 | (hdr->seq_ctrl & | |
2540 | __constant_cpu_to_le16(IEEE80211_SCTL_FRAG)); | |
2541 | seq_number += 0x10; | |
2542 | } | |
6440adb5 CB |
2543 | |
2544 | /* Descriptor for chosen Tx queue */ | |
b481de9c ZY |
2545 | txq = &priv->txq[txq_id]; |
2546 | q = &txq->q; | |
2547 | ||
2548 | spin_lock_irqsave(&priv->lock, flags); | |
2549 | ||
6440adb5 | 2550 | /* Set up first empty TFD within this queue's circular TFD buffer */ |
fc4b6853 | 2551 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
2552 | memset(tfd, 0, sizeof(*tfd)); |
2553 | control_flags = (u32 *) tfd; | |
fc4b6853 | 2554 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 2555 | |
6440adb5 | 2556 | /* Set up driver data for this TFD */ |
bb8c093b | 2557 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl3945_tx_info)); |
fc4b6853 | 2558 | txq->txb[q->write_ptr].skb[0] = skb; |
6440adb5 CB |
2559 | |
2560 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
b481de9c ZY |
2561 | out_cmd = &txq->cmd[idx]; |
2562 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); | |
2563 | memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx)); | |
6440adb5 CB |
2564 | |
2565 | /* | |
2566 | * Set up the Tx-command (not MAC!) header. | |
2567 | * Store the chosen Tx queue and TFD index within the sequence field; | |
2568 | * after Tx, uCode's Tx response will return this value so driver can | |
2569 | * locate the frame within the tx queue and do post-tx processing. | |
2570 | */ | |
b481de9c ZY |
2571 | out_cmd->hdr.cmd = REPLY_TX; |
2572 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 2573 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 CB |
2574 | |
2575 | /* Copy MAC header from skb into command buffer */ | |
b481de9c ZY |
2576 | memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len); |
2577 | ||
6440adb5 CB |
2578 | /* |
2579 | * Use the first empty entry in this queue's command buffer array | |
2580 | * to contain the Tx command and MAC header concatenated together | |
2581 | * (payload data will be in another buffer). | |
2582 | * Size of this varies, due to varying MAC header length. | |
2583 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
2584 | * of the MAC header (device reads on dword boundaries). | |
2585 | * We'll tell device about this padding later. | |
2586 | */ | |
b481de9c | 2587 | len = priv->hw_setting.tx_cmd_len + |
bb8c093b | 2588 | sizeof(struct iwl3945_cmd_header) + hdr_len; |
b481de9c ZY |
2589 | |
2590 | len_org = len; | |
2591 | len = (len + 3) & ~3; | |
2592 | ||
2593 | if (len_org != len) | |
2594 | len_org = 1; | |
2595 | else | |
2596 | len_org = 0; | |
2597 | ||
6440adb5 CB |
2598 | /* Physical address of this Tx command's header (not MAC header!), |
2599 | * within command buffer array. */ | |
bb8c093b CH |
2600 | txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl3945_cmd) * idx + |
2601 | offsetof(struct iwl3945_cmd, hdr); | |
b481de9c | 2602 | |
6440adb5 CB |
2603 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
2604 | * first entry */ | |
bb8c093b | 2605 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len); |
b481de9c | 2606 | |
d0f09804 | 2607 | if (info->control.hw_key) |
e039fa4a | 2608 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0); |
b481de9c | 2609 | |
6440adb5 CB |
2610 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
2611 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
2612 | len = skb->len - hdr_len; |
2613 | if (len) { | |
2614 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
2615 | len, PCI_DMA_TODEVICE); | |
bb8c093b | 2616 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len); |
b481de9c ZY |
2617 | } |
2618 | ||
b481de9c | 2619 | if (!len) |
6440adb5 | 2620 | /* If there is no payload, then we use only one Tx buffer */ |
b481de9c ZY |
2621 | *control_flags = TFD_CTL_COUNT_SET(1); |
2622 | else | |
6440adb5 CB |
2623 | /* Else use 2 buffers. |
2624 | * Tell 3945 about any padding after MAC header */ | |
b481de9c ZY |
2625 | *control_flags = TFD_CTL_COUNT_SET(2) | |
2626 | TFD_CTL_PAD_SET(U32_PAD(len)); | |
2627 | ||
6440adb5 | 2628 | /* Total # bytes to be transmitted */ |
b481de9c ZY |
2629 | len = (u16)skb->len; |
2630 | out_cmd->cmd.tx.len = cpu_to_le16(len); | |
2631 | ||
2632 | /* TODO need this for burst mode later on */ | |
e039fa4a | 2633 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, unicast, sta_id); |
b481de9c ZY |
2634 | |
2635 | /* set is_hcca to 0; it probably will never be implemented */ | |
e039fa4a | 2636 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); |
b481de9c ZY |
2637 | |
2638 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; | |
2639 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
2640 | ||
8b7b1e05 | 2641 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
b481de9c | 2642 | txq->need_update = 1; |
3ac7f146 | 2643 | if (qc) |
b481de9c | 2644 | priv->stations[sta_id].tid[tid].seq_number = seq_number; |
b481de9c ZY |
2645 | } else { |
2646 | wait_write_ptr = 1; | |
2647 | txq->need_update = 0; | |
2648 | } | |
2649 | ||
bb8c093b | 2650 | iwl3945_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload, |
b481de9c ZY |
2651 | sizeof(out_cmd->cmd.tx)); |
2652 | ||
bb8c093b | 2653 | iwl3945_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr, |
7294ec95 | 2654 | ieee80211_hdrlen(fc)); |
b481de9c | 2655 | |
6440adb5 | 2656 | /* Tell device the write index *just past* this latest filled TFD */ |
c54b679d | 2657 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
bb8c093b | 2658 | rc = iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2659 | spin_unlock_irqrestore(&priv->lock, flags); |
2660 | ||
2661 | if (rc) | |
2662 | return rc; | |
2663 | ||
bb8c093b | 2664 | if ((iwl3945_queue_space(q) < q->high_mark) |
b481de9c ZY |
2665 | && priv->mac80211_registered) { |
2666 | if (wait_write_ptr) { | |
2667 | spin_lock_irqsave(&priv->lock, flags); | |
2668 | txq->need_update = 1; | |
bb8c093b | 2669 | iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2670 | spin_unlock_irqrestore(&priv->lock, flags); |
2671 | } | |
2672 | ||
e2530083 | 2673 | ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb)); |
b481de9c ZY |
2674 | } |
2675 | ||
2676 | return 0; | |
2677 | ||
2678 | drop_unlock: | |
2679 | spin_unlock_irqrestore(&priv->lock, flags); | |
2680 | drop: | |
2681 | return -1; | |
2682 | } | |
2683 | ||
bb8c093b | 2684 | static void iwl3945_set_rate(struct iwl3945_priv *priv) |
b481de9c | 2685 | { |
8318d78a | 2686 | const struct ieee80211_supported_band *sband = NULL; |
b481de9c ZY |
2687 | struct ieee80211_rate *rate; |
2688 | int i; | |
2689 | ||
8318d78a JB |
2690 | sband = iwl3945_get_band(priv, priv->band); |
2691 | if (!sband) { | |
c4ba9621 SA |
2692 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); |
2693 | return; | |
2694 | } | |
b481de9c ZY |
2695 | |
2696 | priv->active_rate = 0; | |
2697 | priv->active_rate_basic = 0; | |
2698 | ||
8318d78a JB |
2699 | IWL_DEBUG_RATE("Setting rates for %s GHz\n", |
2700 | sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5"); | |
2701 | ||
2702 | for (i = 0; i < sband->n_bitrates; i++) { | |
2703 | rate = &sband->bitrates[i]; | |
2704 | if ((rate->hw_value < IWL_RATE_COUNT) && | |
2705 | !(rate->flags & IEEE80211_CHAN_DISABLED)) { | |
2706 | IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n", | |
2707 | rate->hw_value, iwl3945_rates[rate->hw_value].plcp); | |
2708 | priv->active_rate |= (1 << rate->hw_value); | |
2709 | } | |
b481de9c ZY |
2710 | } |
2711 | ||
2712 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
2713 | priv->active_rate, priv->active_rate_basic); | |
2714 | ||
2715 | /* | |
2716 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
2717 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
2718 | * OFDM | |
2719 | */ | |
2720 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
2721 | priv->staging_rxon.cck_basic_rates = | |
2722 | ((priv->active_rate_basic & | |
2723 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
2724 | else | |
2725 | priv->staging_rxon.cck_basic_rates = | |
2726 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2727 | ||
2728 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
2729 | priv->staging_rxon.ofdm_basic_rates = | |
2730 | ((priv->active_rate_basic & | |
2731 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
2732 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
2733 | else | |
2734 | priv->staging_rxon.ofdm_basic_rates = | |
2735 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2736 | } | |
2737 | ||
bb8c093b | 2738 | static void iwl3945_radio_kill_sw(struct iwl3945_priv *priv, int disable_radio) |
b481de9c ZY |
2739 | { |
2740 | unsigned long flags; | |
2741 | ||
2742 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
2743 | return; | |
2744 | ||
2745 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
2746 | disable_radio ? "OFF" : "ON"); | |
2747 | ||
2748 | if (disable_radio) { | |
bb8c093b | 2749 | iwl3945_scan_cancel(priv); |
b481de9c | 2750 | /* FIXME: This is a workaround for AP */ |
05c914fe | 2751 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
b481de9c | 2752 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 2753 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
2754 | CSR_UCODE_SW_BIT_RFKILL); |
2755 | spin_unlock_irqrestore(&priv->lock, flags); | |
bb8c093b | 2756 | iwl3945_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0); |
b481de9c ZY |
2757 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
2758 | } | |
2759 | return; | |
2760 | } | |
2761 | ||
2762 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2763 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
2764 | |
2765 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
2766 | spin_unlock_irqrestore(&priv->lock, flags); | |
2767 | ||
2768 | /* wake up ucode */ | |
2769 | msleep(10); | |
2770 | ||
2771 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
2772 | iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
2773 | if (!iwl3945_grab_nic_access(priv)) | |
2774 | iwl3945_release_nic_access(priv); | |
b481de9c ZY |
2775 | spin_unlock_irqrestore(&priv->lock, flags); |
2776 | ||
2777 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
2778 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2779 | "disabled by HW switch\n"); | |
2780 | return; | |
2781 | } | |
2782 | ||
808e72a0 ZY |
2783 | if (priv->is_open) |
2784 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
2785 | return; |
2786 | } | |
2787 | ||
bb8c093b | 2788 | void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb, |
b481de9c ZY |
2789 | u32 decrypt_res, struct ieee80211_rx_status *stats) |
2790 | { | |
2791 | u16 fc = | |
2792 | le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control); | |
2793 | ||
2794 | if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) | |
2795 | return; | |
2796 | ||
2797 | if (!(fc & IEEE80211_FCTL_PROTECTED)) | |
2798 | return; | |
2799 | ||
2800 | IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res); | |
2801 | switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { | |
2802 | case RX_RES_STATUS_SEC_TYPE_TKIP: | |
2803 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2804 | RX_RES_STATUS_BAD_ICV_MIC) | |
2805 | stats->flag |= RX_FLAG_MMIC_ERROR; | |
2806 | case RX_RES_STATUS_SEC_TYPE_WEP: | |
2807 | case RX_RES_STATUS_SEC_TYPE_CCMP: | |
2808 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2809 | RX_RES_STATUS_DECRYPT_OK) { | |
2810 | IWL_DEBUG_RX("hw decrypt successfully!!!\n"); | |
2811 | stats->flag |= RX_FLAG_DECRYPTED; | |
2812 | } | |
2813 | break; | |
2814 | ||
2815 | default: | |
2816 | break; | |
2817 | } | |
2818 | } | |
2819 | ||
c8b0e6e1 | 2820 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
2821 | |
2822 | #include "iwl-spectrum.h" | |
2823 | ||
2824 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
2825 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
2826 | #define TIME_UNIT 1024 | |
2827 | ||
2828 | /* | |
2829 | * extended beacon time format | |
2830 | * time in usec will be changed into a 32-bit value in 8:24 format | |
2831 | * the high 1 byte is the beacon counts | |
2832 | * the lower 3 bytes is the time in usec within one beacon interval | |
2833 | */ | |
2834 | ||
bb8c093b | 2835 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
2836 | { |
2837 | u32 quot; | |
2838 | u32 rem; | |
2839 | u32 interval = beacon_interval * 1024; | |
2840 | ||
2841 | if (!interval || !usec) | |
2842 | return 0; | |
2843 | ||
2844 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
2845 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
2846 | ||
2847 | return (quot << 24) + rem; | |
2848 | } | |
2849 | ||
2850 | /* base is usually what we get from ucode with each received frame, | |
2851 | * the same as HW timer counter counting down | |
2852 | */ | |
2853 | ||
bb8c093b | 2854 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
2855 | { |
2856 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
2857 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
2858 | u32 interval = beacon_interval * TIME_UNIT; | |
2859 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
2860 | (addon & BEACON_TIME_MASK_HIGH); | |
2861 | ||
2862 | if (base_low > addon_low) | |
2863 | res += base_low - addon_low; | |
2864 | else if (base_low < addon_low) { | |
2865 | res += interval + base_low - addon_low; | |
2866 | res += (1 << 24); | |
2867 | } else | |
2868 | res += (1 << 24); | |
2869 | ||
2870 | return cpu_to_le32(res); | |
2871 | } | |
2872 | ||
bb8c093b | 2873 | static int iwl3945_get_measurement(struct iwl3945_priv *priv, |
b481de9c ZY |
2874 | struct ieee80211_measurement_params *params, |
2875 | u8 type) | |
2876 | { | |
bb8c093b CH |
2877 | struct iwl3945_spectrum_cmd spectrum; |
2878 | struct iwl3945_rx_packet *res; | |
2879 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
2880 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
2881 | .data = (void *)&spectrum, | |
2882 | .meta.flags = CMD_WANT_SKB, | |
2883 | }; | |
2884 | u32 add_time = le64_to_cpu(params->start_time); | |
2885 | int rc; | |
2886 | int spectrum_resp_status; | |
2887 | int duration = le16_to_cpu(params->duration); | |
2888 | ||
bb8c093b | 2889 | if (iwl3945_is_associated(priv)) |
b481de9c | 2890 | add_time = |
bb8c093b | 2891 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
2892 | le64_to_cpu(params->start_time) - priv->last_tsf, |
2893 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
2894 | ||
2895 | memset(&spectrum, 0, sizeof(spectrum)); | |
2896 | ||
2897 | spectrum.channel_count = cpu_to_le16(1); | |
2898 | spectrum.flags = | |
2899 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
2900 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
2901 | cmd.len = sizeof(spectrum); | |
2902 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
2903 | ||
bb8c093b | 2904 | if (iwl3945_is_associated(priv)) |
b481de9c | 2905 | spectrum.start_time = |
bb8c093b | 2906 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
2907 | add_time, |
2908 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
2909 | else | |
2910 | spectrum.start_time = 0; | |
2911 | ||
2912 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
2913 | spectrum.channels[0].channel = params->channel; | |
2914 | spectrum.channels[0].type = type; | |
2915 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
2916 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
2917 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
2918 | ||
bb8c093b | 2919 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
2920 | if (rc) |
2921 | return rc; | |
2922 | ||
bb8c093b | 2923 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
2924 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
2925 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
2926 | rc = -EIO; | |
2927 | } | |
2928 | ||
2929 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
2930 | switch (spectrum_resp_status) { | |
2931 | case 0: /* Command will be handled */ | |
2932 | if (res->u.spectrum.id != 0xff) { | |
bc434dd2 IS |
2933 | IWL_DEBUG_INFO("Replaced existing measurement: %d\n", |
2934 | res->u.spectrum.id); | |
b481de9c ZY |
2935 | priv->measurement_status &= ~MEASUREMENT_READY; |
2936 | } | |
2937 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
2938 | rc = 0; | |
2939 | break; | |
2940 | ||
2941 | case 1: /* Command will not be handled */ | |
2942 | rc = -EAGAIN; | |
2943 | break; | |
2944 | } | |
2945 | ||
2946 | dev_kfree_skb_any(cmd.meta.u.skb); | |
2947 | ||
2948 | return rc; | |
2949 | } | |
2950 | #endif | |
2951 | ||
bb8c093b CH |
2952 | static void iwl3945_rx_reply_alive(struct iwl3945_priv *priv, |
2953 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2954 | { |
bb8c093b CH |
2955 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
2956 | struct iwl3945_alive_resp *palive; | |
b481de9c ZY |
2957 | struct delayed_work *pwork; |
2958 | ||
2959 | palive = &pkt->u.alive_frame; | |
2960 | ||
2961 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
2962 | "0x%01X 0x%01X\n", | |
2963 | palive->is_valid, palive->ver_type, | |
2964 | palive->ver_subtype); | |
2965 | ||
2966 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
2967 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
2968 | memcpy(&priv->card_alive_init, | |
2969 | &pkt->u.alive_frame, | |
bb8c093b | 2970 | sizeof(struct iwl3945_init_alive_resp)); |
b481de9c ZY |
2971 | pwork = &priv->init_alive_start; |
2972 | } else { | |
2973 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
2974 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
bb8c093b | 2975 | sizeof(struct iwl3945_alive_resp)); |
b481de9c | 2976 | pwork = &priv->alive_start; |
bb8c093b | 2977 | iwl3945_disable_events(priv); |
b481de9c ZY |
2978 | } |
2979 | ||
2980 | /* We delay the ALIVE response by 5ms to | |
2981 | * give the HW RF Kill time to activate... */ | |
2982 | if (palive->is_valid == UCODE_VALID_OK) | |
2983 | queue_delayed_work(priv->workqueue, pwork, | |
2984 | msecs_to_jiffies(5)); | |
2985 | else | |
2986 | IWL_WARNING("uCode did not respond OK.\n"); | |
2987 | } | |
2988 | ||
bb8c093b CH |
2989 | static void iwl3945_rx_reply_add_sta(struct iwl3945_priv *priv, |
2990 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2991 | { |
bb8c093b | 2992 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
2993 | |
2994 | IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); | |
2995 | return; | |
2996 | } | |
2997 | ||
bb8c093b CH |
2998 | static void iwl3945_rx_reply_error(struct iwl3945_priv *priv, |
2999 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3000 | { |
bb8c093b | 3001 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3002 | |
3003 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
3004 | "seq 0x%04X ser 0x%08X\n", | |
3005 | le32_to_cpu(pkt->u.err_resp.error_type), | |
3006 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
3007 | pkt->u.err_resp.cmd_id, | |
3008 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
3009 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
3010 | } | |
3011 | ||
3012 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
3013 | ||
bb8c093b | 3014 | static void iwl3945_rx_csa(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb) |
b481de9c | 3015 | { |
bb8c093b CH |
3016 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3017 | struct iwl3945_rxon_cmd *rxon = (void *)&priv->active_rxon; | |
3018 | struct iwl3945_csa_notification *csa = &(pkt->u.csa_notif); | |
b481de9c ZY |
3019 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
3020 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
3021 | rxon->channel = csa->channel; | |
3022 | priv->staging_rxon.channel = csa->channel; | |
3023 | } | |
3024 | ||
bb8c093b CH |
3025 | static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv *priv, |
3026 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3027 | { |
c8b0e6e1 | 3028 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
bb8c093b CH |
3029 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3030 | struct iwl3945_spectrum_notification *report = &(pkt->u.spectrum_notif); | |
b481de9c ZY |
3031 | |
3032 | if (!report->state) { | |
3033 | IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO, | |
3034 | "Spectrum Measure Notification: Start\n"); | |
3035 | return; | |
3036 | } | |
3037 | ||
3038 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
3039 | priv->measurement_status |= MEASUREMENT_READY; | |
3040 | #endif | |
3041 | } | |
3042 | ||
bb8c093b CH |
3043 | static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv *priv, |
3044 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3045 | { |
c8b0e6e1 | 3046 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3047 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3048 | struct iwl3945_sleep_notification *sleep = &(pkt->u.sleep_notif); | |
b481de9c ZY |
3049 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
3050 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
3051 | #endif | |
3052 | } | |
3053 | ||
bb8c093b CH |
3054 | static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv *priv, |
3055 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3056 | { |
bb8c093b | 3057 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3058 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
3059 | "notification for %s:\n", | |
3060 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bb8c093b | 3061 | iwl3945_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
3062 | } |
3063 | ||
bb8c093b | 3064 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 3065 | { |
bb8c093b CH |
3066 | struct iwl3945_priv *priv = |
3067 | container_of(work, struct iwl3945_priv, beacon_update); | |
b481de9c ZY |
3068 | struct sk_buff *beacon; |
3069 | ||
3070 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 3071 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
3072 | |
3073 | if (!beacon) { | |
3074 | IWL_ERROR("update beacon failed\n"); | |
3075 | return; | |
3076 | } | |
3077 | ||
3078 | mutex_lock(&priv->mutex); | |
3079 | /* new beacon skb is allocated every time; dispose previous.*/ | |
3080 | if (priv->ibss_beacon) | |
3081 | dev_kfree_skb(priv->ibss_beacon); | |
3082 | ||
3083 | priv->ibss_beacon = beacon; | |
3084 | mutex_unlock(&priv->mutex); | |
3085 | ||
bb8c093b | 3086 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3087 | } |
3088 | ||
bb8c093b CH |
3089 | static void iwl3945_rx_beacon_notif(struct iwl3945_priv *priv, |
3090 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3091 | { |
c8b0e6e1 | 3092 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3093 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3094 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); | |
b481de9c ZY |
3095 | u8 rate = beacon->beacon_notify_hdr.rate; |
3096 | ||
3097 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
3098 | "tsf %d %d rate %d\n", | |
3099 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
3100 | beacon->beacon_notify_hdr.failure_frame, | |
3101 | le32_to_cpu(beacon->ibss_mgr_status), | |
3102 | le32_to_cpu(beacon->high_tsf), | |
3103 | le32_to_cpu(beacon->low_tsf), rate); | |
3104 | #endif | |
3105 | ||
05c914fe | 3106 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
3107 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
3108 | queue_work(priv->workqueue, &priv->beacon_update); | |
3109 | } | |
3110 | ||
3111 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
bb8c093b CH |
3112 | static void iwl3945_rx_reply_scan(struct iwl3945_priv *priv, |
3113 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3114 | { |
c8b0e6e1 | 3115 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3116 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3117 | struct iwl3945_scanreq_notification *notif = | |
3118 | (struct iwl3945_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
3119 | |
3120 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
3121 | #endif | |
3122 | } | |
3123 | ||
3124 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
bb8c093b CH |
3125 | static void iwl3945_rx_scan_start_notif(struct iwl3945_priv *priv, |
3126 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3127 | { |
bb8c093b CH |
3128 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3129 | struct iwl3945_scanstart_notification *notif = | |
3130 | (struct iwl3945_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
3131 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
3132 | IWL_DEBUG_SCAN("Scan start: " | |
3133 | "%d [802.11%s] " | |
3134 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
3135 | notif->channel, | |
3136 | notif->band ? "bg" : "a", | |
3137 | notif->tsf_high, | |
3138 | notif->tsf_low, notif->status, notif->beacon_timer); | |
3139 | } | |
3140 | ||
3141 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
bb8c093b CH |
3142 | static void iwl3945_rx_scan_results_notif(struct iwl3945_priv *priv, |
3143 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3144 | { |
bb8c093b CH |
3145 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3146 | struct iwl3945_scanresults_notification *notif = | |
3147 | (struct iwl3945_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
3148 | |
3149 | IWL_DEBUG_SCAN("Scan ch.res: " | |
3150 | "%d [802.11%s] " | |
3151 | "(TSF: 0x%08X:%08X) - %d " | |
3152 | "elapsed=%lu usec (%dms since last)\n", | |
3153 | notif->channel, | |
3154 | notif->band ? "bg" : "a", | |
3155 | le32_to_cpu(notif->tsf_high), | |
3156 | le32_to_cpu(notif->tsf_low), | |
3157 | le32_to_cpu(notif->statistics[0]), | |
3158 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
3159 | jiffies_to_msecs(elapsed_jiffies | |
3160 | (priv->last_scan_jiffies, jiffies))); | |
3161 | ||
3162 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3163 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3164 | } |
3165 | ||
3166 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
bb8c093b CH |
3167 | static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv *priv, |
3168 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3169 | { |
bb8c093b CH |
3170 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3171 | struct iwl3945_scancomplete_notification *scan_notif = (void *)pkt->u.raw; | |
b481de9c ZY |
3172 | |
3173 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
3174 | scan_notif->scanned_channels, | |
3175 | scan_notif->tsf_low, | |
3176 | scan_notif->tsf_high, scan_notif->status); | |
3177 | ||
3178 | /* The HW is no longer scanning */ | |
3179 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
3180 | ||
3181 | /* The scan completion notification came in, so kill that timer... */ | |
3182 | cancel_delayed_work(&priv->scan_check); | |
3183 | ||
3184 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
66b5004d RR |
3185 | (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ? |
3186 | "2.4" : "5.2", | |
b481de9c ZY |
3187 | jiffies_to_msecs(elapsed_jiffies |
3188 | (priv->scan_pass_start, jiffies))); | |
3189 | ||
66b5004d RR |
3190 | /* Remove this scanned band from the list of pending |
3191 | * bands to scan, band G precedes A in order of scanning | |
3192 | * as seen in iwl3945_bg_request_scan */ | |
3193 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) | |
3194 | priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ); | |
3195 | else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) | |
3196 | priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
3197 | |
3198 | /* If a request to abort was given, or the scan did not succeed | |
3199 | * then we reset the scan state machine and terminate, | |
3200 | * re-queuing another scan if one has been requested */ | |
3201 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3202 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
3203 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
3204 | } else { | |
3205 | /* If there are more bands on this scan pass reschedule */ | |
3206 | if (priv->scan_bands > 0) | |
3207 | goto reschedule; | |
3208 | } | |
3209 | ||
3210 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3211 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3212 | IWL_DEBUG_INFO("Setting scan to off\n"); |
3213 | ||
3214 | clear_bit(STATUS_SCANNING, &priv->status); | |
3215 | ||
3216 | IWL_DEBUG_INFO("Scan took %dms\n", | |
3217 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
3218 | ||
3219 | queue_work(priv->workqueue, &priv->scan_completed); | |
3220 | ||
3221 | return; | |
3222 | ||
3223 | reschedule: | |
3224 | priv->scan_pass_start = jiffies; | |
3225 | queue_work(priv->workqueue, &priv->request_scan); | |
3226 | } | |
3227 | ||
3228 | /* Handle notification from uCode that card's power state is changing | |
3229 | * due to software, hardware, or critical temperature RFKILL */ | |
bb8c093b CH |
3230 | static void iwl3945_rx_card_state_notif(struct iwl3945_priv *priv, |
3231 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3232 | { |
bb8c093b | 3233 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3234 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
3235 | unsigned long status = priv->status; | |
3236 | ||
3237 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
3238 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
3239 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
3240 | ||
bb8c093b | 3241 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
3242 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3243 | ||
3244 | if (flags & HW_CARD_DISABLED) | |
3245 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3246 | else | |
3247 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3248 | ||
3249 | ||
3250 | if (flags & SW_CARD_DISABLED) | |
3251 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
3252 | else | |
3253 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
3254 | ||
bb8c093b | 3255 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
3256 | |
3257 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
3258 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
3259 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
3260 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
3261 | queue_work(priv->workqueue, &priv->rf_kill); | |
3262 | else | |
3263 | wake_up_interruptible(&priv->wait_command_queue); | |
3264 | } | |
3265 | ||
3266 | /** | |
bb8c093b | 3267 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
3268 | * |
3269 | * Setup the RX handlers for each of the reply types sent from the uCode | |
3270 | * to the host. | |
3271 | * | |
3272 | * This function chains into the hardware specific files for them to setup | |
3273 | * any hardware specific handlers as well. | |
3274 | */ | |
bb8c093b | 3275 | static void iwl3945_setup_rx_handlers(struct iwl3945_priv *priv) |
b481de9c | 3276 | { |
bb8c093b CH |
3277 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
3278 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
3279 | priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error; | |
3280 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa; | |
b481de9c | 3281 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
3282 | iwl3945_rx_spectrum_measure_notif; |
3283 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif; | |
b481de9c | 3284 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
3285 | iwl3945_rx_pm_debug_statistics_notif; |
3286 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; | |
b481de9c | 3287 | |
9fbab516 BC |
3288 | /* |
3289 | * The same handler is used for both the REPLY to a discrete | |
3290 | * statistics request from the host as well as for the periodic | |
3291 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 3292 | */ |
bb8c093b CH |
3293 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
3294 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 3295 | |
bb8c093b CH |
3296 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan; |
3297 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif; | |
b481de9c | 3298 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 3299 | iwl3945_rx_scan_results_notif; |
b481de9c | 3300 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b CH |
3301 | iwl3945_rx_scan_complete_notif; |
3302 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; | |
b481de9c | 3303 | |
9fbab516 | 3304 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 3305 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
3306 | } |
3307 | ||
91c066f2 TW |
3308 | /** |
3309 | * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries | |
3310 | * When FW advances 'R' index, all entries between old and new 'R' index | |
3311 | * need to be reclaimed. | |
3312 | */ | |
3313 | static void iwl3945_cmd_queue_reclaim(struct iwl3945_priv *priv, | |
3314 | int txq_id, int index) | |
3315 | { | |
3316 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; | |
3317 | struct iwl3945_queue *q = &txq->q; | |
3318 | int nfreed = 0; | |
3319 | ||
3320 | if ((index >= q->n_bd) || (iwl3945_x2_queue_used(q, index) == 0)) { | |
3321 | IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " | |
3322 | "is out of range [0-%d] %d %d.\n", txq_id, | |
3323 | index, q->n_bd, q->write_ptr, q->read_ptr); | |
3324 | return; | |
3325 | } | |
3326 | ||
3327 | for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; | |
3328 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { | |
3329 | if (nfreed > 1) { | |
3330 | IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, | |
3331 | q->write_ptr, q->read_ptr); | |
3332 | queue_work(priv->workqueue, &priv->restart); | |
3333 | break; | |
3334 | } | |
3335 | nfreed++; | |
3336 | } | |
3337 | } | |
3338 | ||
3339 | ||
b481de9c | 3340 | /** |
bb8c093b | 3341 | * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
3342 | * @rxb: Rx buffer to reclaim |
3343 | * | |
3344 | * If an Rx buffer has an async callback associated with it the callback | |
3345 | * will be executed. The attached skb (if present) will only be freed | |
3346 | * if the callback returns 1 | |
3347 | */ | |
bb8c093b CH |
3348 | static void iwl3945_tx_cmd_complete(struct iwl3945_priv *priv, |
3349 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3350 | { |
bb8c093b | 3351 | struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3352 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
3353 | int txq_id = SEQ_TO_QUEUE(sequence); | |
3354 | int index = SEQ_TO_INDEX(sequence); | |
3355 | int huge = sequence & SEQ_HUGE_FRAME; | |
3356 | int cmd_index; | |
bb8c093b | 3357 | struct iwl3945_cmd *cmd; |
b481de9c | 3358 | |
b481de9c ZY |
3359 | BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); |
3360 | ||
3361 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); | |
3362 | cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
3363 | ||
3364 | /* Input error checking is done when commands are added to queue. */ | |
3365 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
3366 | cmd->meta.source->u.skb = rxb->skb; | |
3367 | rxb->skb = NULL; | |
3368 | } else if (cmd->meta.u.callback && | |
3369 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
3370 | rxb->skb = NULL; | |
3371 | ||
91c066f2 | 3372 | iwl3945_cmd_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
3373 | |
3374 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
3375 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
3376 | wake_up_interruptible(&priv->wait_command_queue); | |
3377 | } | |
3378 | } | |
3379 | ||
3380 | /************************** RX-FUNCTIONS ****************************/ | |
3381 | /* | |
3382 | * Rx theory of operation | |
3383 | * | |
3384 | * The host allocates 32 DMA target addresses and passes the host address | |
3385 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
3386 | * 0 to 31 | |
3387 | * | |
3388 | * Rx Queue Indexes | |
3389 | * The host/firmware share two index registers for managing the Rx buffers. | |
3390 | * | |
3391 | * The READ index maps to the first position that the firmware may be writing | |
3392 | * to -- the driver can read up to (but not including) this position and get | |
3393 | * good data. | |
3394 | * The READ index is managed by the firmware once the card is enabled. | |
3395 | * | |
3396 | * The WRITE index maps to the last position the driver has read from -- the | |
3397 | * position preceding WRITE is the last slot the firmware can place a packet. | |
3398 | * | |
3399 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
3400 | * WRITE = READ. | |
3401 | * | |
9fbab516 | 3402 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
3403 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
3404 | * | |
9fbab516 | 3405 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
3406 | * and fire the RX interrupt. The driver can then query the READ index and |
3407 | * process as many packets as possible, moving the WRITE index forward as it | |
3408 | * resets the Rx queue buffers with new memory. | |
3409 | * | |
3410 | * The management in the driver is as follows: | |
3411 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
3412 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 3413 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 3414 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
3415 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
3416 | * 'processed' and 'read' driver indexes as well) | |
3417 | * + A received packet is processed and handed to the kernel network stack, | |
3418 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
3419 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
3420 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
3421 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
3422 | * were enough free buffers and RX_STALLED is set it is cleared. | |
3423 | * | |
3424 | * | |
3425 | * Driver sequence: | |
3426 | * | |
9fbab516 BC |
3427 | * iwl3945_rx_queue_alloc() Allocates rx_free |
3428 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls | |
bb8c093b | 3429 | * iwl3945_rx_queue_restock |
9fbab516 | 3430 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
3431 | * queue, updates firmware pointers, and updates |
3432 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 3433 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
3434 | * |
3435 | * -- enable interrupts -- | |
9fbab516 | 3436 | * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the |
b481de9c ZY |
3437 | * READ INDEX, detaching the SKB from the pool. |
3438 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 3439 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
3440 | * slots. |
3441 | * ... | |
3442 | * | |
3443 | */ | |
3444 | ||
3445 | /** | |
bb8c093b | 3446 | * iwl3945_rx_queue_space - Return number of free slots available in queue. |
b481de9c | 3447 | */ |
bb8c093b | 3448 | static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue *q) |
b481de9c ZY |
3449 | { |
3450 | int s = q->read - q->write; | |
3451 | if (s <= 0) | |
3452 | s += RX_QUEUE_SIZE; | |
3453 | /* keep some buffer to not confuse full and empty queue */ | |
3454 | s -= 2; | |
3455 | if (s < 0) | |
3456 | s = 0; | |
3457 | return s; | |
3458 | } | |
3459 | ||
3460 | /** | |
bb8c093b | 3461 | * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue |
b481de9c | 3462 | */ |
bb8c093b | 3463 | int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv, struct iwl3945_rx_queue *q) |
b481de9c ZY |
3464 | { |
3465 | u32 reg = 0; | |
3466 | int rc = 0; | |
3467 | unsigned long flags; | |
3468 | ||
3469 | spin_lock_irqsave(&q->lock, flags); | |
3470 | ||
3471 | if (q->need_update == 0) | |
3472 | goto exit_unlock; | |
3473 | ||
6440adb5 | 3474 | /* If power-saving is in use, make sure device is awake */ |
b481de9c | 3475 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { |
bb8c093b | 3476 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3477 | |
3478 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
bb8c093b | 3479 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3480 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3481 | goto exit_unlock; | |
3482 | } | |
3483 | ||
bb8c093b | 3484 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3485 | if (rc) |
3486 | goto exit_unlock; | |
3487 | ||
6440adb5 | 3488 | /* Device expects a multiple of 8 */ |
bb8c093b | 3489 | iwl3945_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, |
b481de9c | 3490 | q->write & ~0x7); |
bb8c093b | 3491 | iwl3945_release_nic_access(priv); |
6440adb5 CB |
3492 | |
3493 | /* Else device is assumed to be awake */ | |
b481de9c | 3494 | } else |
6440adb5 | 3495 | /* Device expects a multiple of 8 */ |
bb8c093b | 3496 | iwl3945_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7); |
b481de9c ZY |
3497 | |
3498 | ||
3499 | q->need_update = 0; | |
3500 | ||
3501 | exit_unlock: | |
3502 | spin_unlock_irqrestore(&q->lock, flags); | |
3503 | return rc; | |
3504 | } | |
3505 | ||
3506 | /** | |
9fbab516 | 3507 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 3508 | */ |
bb8c093b | 3509 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv *priv, |
b481de9c ZY |
3510 | dma_addr_t dma_addr) |
3511 | { | |
3512 | return cpu_to_le32((u32)dma_addr); | |
3513 | } | |
3514 | ||
3515 | /** | |
bb8c093b | 3516 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 3517 | * |
9fbab516 | 3518 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 3519 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 3520 | * as we can, pulling from rx_free. |
b481de9c ZY |
3521 | * |
3522 | * This moves the 'write' index forward to catch up with 'processed', and | |
3523 | * also updates the memory address in the firmware to reference the new | |
3524 | * target buffer. | |
3525 | */ | |
bb8c093b | 3526 | static int iwl3945_rx_queue_restock(struct iwl3945_priv *priv) |
b481de9c | 3527 | { |
bb8c093b | 3528 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3529 | struct list_head *element; |
bb8c093b | 3530 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3531 | unsigned long flags; |
3532 | int write, rc; | |
3533 | ||
3534 | spin_lock_irqsave(&rxq->lock, flags); | |
3535 | write = rxq->write & ~0x7; | |
bb8c093b | 3536 | while ((iwl3945_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 3537 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 3538 | element = rxq->rx_free.next; |
bb8c093b | 3539 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
b481de9c | 3540 | list_del(element); |
6440adb5 CB |
3541 | |
3542 | /* Point to Rx buffer via next RBD in circular buffer */ | |
bb8c093b | 3543 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->dma_addr); |
b481de9c ZY |
3544 | rxq->queue[rxq->write] = rxb; |
3545 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
3546 | rxq->free_count--; | |
3547 | } | |
3548 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3549 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
3550 | * refill it */ | |
3551 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
3552 | queue_work(priv->workqueue, &priv->rx_replenish); | |
3553 | ||
3554 | ||
6440adb5 CB |
3555 | /* If we've added more space for the firmware to place data, tell it. |
3556 | * Increment device's write pointer in multiples of 8. */ | |
b481de9c ZY |
3557 | if ((write != (rxq->write & ~0x7)) |
3558 | || (abs(rxq->write - rxq->read) > 7)) { | |
3559 | spin_lock_irqsave(&rxq->lock, flags); | |
3560 | rxq->need_update = 1; | |
3561 | spin_unlock_irqrestore(&rxq->lock, flags); | |
bb8c093b | 3562 | rc = iwl3945_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
3563 | if (rc) |
3564 | return rc; | |
3565 | } | |
3566 | ||
3567 | return 0; | |
3568 | } | |
3569 | ||
3570 | /** | |
bb8c093b | 3571 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
3572 | * |
3573 | * When moving to rx_free an SKB is allocated for the slot. | |
3574 | * | |
bb8c093b | 3575 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 3576 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 3577 | */ |
5c0eef96 | 3578 | static void iwl3945_rx_allocate(struct iwl3945_priv *priv) |
b481de9c | 3579 | { |
bb8c093b | 3580 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3581 | struct list_head *element; |
bb8c093b | 3582 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3583 | unsigned long flags; |
3584 | spin_lock_irqsave(&rxq->lock, flags); | |
3585 | while (!list_empty(&rxq->rx_used)) { | |
3586 | element = rxq->rx_used.next; | |
bb8c093b | 3587 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
6440adb5 CB |
3588 | |
3589 | /* Alloc a new receive buffer */ | |
b481de9c ZY |
3590 | rxb->skb = |
3591 | alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC); | |
3592 | if (!rxb->skb) { | |
3593 | if (net_ratelimit()) | |
3594 | printk(KERN_CRIT DRV_NAME | |
3595 | ": Can not allocate SKB buffers\n"); | |
3596 | /* We don't reschedule replenish work here -- we will | |
3597 | * call the restock method and if it still needs | |
3598 | * more buffers it will schedule replenish */ | |
3599 | break; | |
3600 | } | |
12342c47 ZY |
3601 | |
3602 | /* If radiotap head is required, reserve some headroom here. | |
3603 | * The physical head count is a variable rx_stats->phy_count. | |
3604 | * We reserve 4 bytes here. Plus these extra bytes, the | |
3605 | * headroom of the physical head should be enough for the | |
3606 | * radiotap head that iwl3945 supported. See iwl3945_rt. | |
3607 | */ | |
3608 | skb_reserve(rxb->skb, 4); | |
3609 | ||
b481de9c ZY |
3610 | priv->alloc_rxb_skb++; |
3611 | list_del(element); | |
6440adb5 CB |
3612 | |
3613 | /* Get physical address of RB/SKB */ | |
b481de9c ZY |
3614 | rxb->dma_addr = |
3615 | pci_map_single(priv->pci_dev, rxb->skb->data, | |
3616 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3617 | list_add_tail(&rxb->list, &rxq->rx_free); | |
3618 | rxq->free_count++; | |
3619 | } | |
3620 | spin_unlock_irqrestore(&rxq->lock, flags); | |
5c0eef96 MA |
3621 | } |
3622 | ||
3623 | /* | |
3624 | * this should be called while priv->lock is locked | |
3625 | */ | |
4fd1f841 | 3626 | static void __iwl3945_rx_replenish(void *data) |
5c0eef96 MA |
3627 | { |
3628 | struct iwl3945_priv *priv = data; | |
3629 | ||
3630 | iwl3945_rx_allocate(priv); | |
3631 | iwl3945_rx_queue_restock(priv); | |
3632 | } | |
3633 | ||
3634 | ||
3635 | void iwl3945_rx_replenish(void *data) | |
3636 | { | |
3637 | struct iwl3945_priv *priv = data; | |
3638 | unsigned long flags; | |
3639 | ||
3640 | iwl3945_rx_allocate(priv); | |
b481de9c ZY |
3641 | |
3642 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 3643 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3644 | spin_unlock_irqrestore(&priv->lock, flags); |
3645 | } | |
3646 | ||
3647 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. | |
9fbab516 | 3648 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
b481de9c ZY |
3649 | * This free routine walks the list of POOL entries and if SKB is set to |
3650 | * non NULL it is unmapped and freed | |
3651 | */ | |
bb8c093b | 3652 | static void iwl3945_rx_queue_free(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3653 | { |
3654 | int i; | |
3655 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
3656 | if (rxq->pool[i].skb != NULL) { | |
3657 | pci_unmap_single(priv->pci_dev, | |
3658 | rxq->pool[i].dma_addr, | |
3659 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3660 | dev_kfree_skb(rxq->pool[i].skb); | |
3661 | } | |
3662 | } | |
3663 | ||
3664 | pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, | |
3665 | rxq->dma_addr); | |
3666 | rxq->bd = NULL; | |
3667 | } | |
3668 | ||
bb8c093b | 3669 | int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv) |
b481de9c | 3670 | { |
bb8c093b | 3671 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
3672 | struct pci_dev *dev = priv->pci_dev; |
3673 | int i; | |
3674 | ||
3675 | spin_lock_init(&rxq->lock); | |
3676 | INIT_LIST_HEAD(&rxq->rx_free); | |
3677 | INIT_LIST_HEAD(&rxq->rx_used); | |
6440adb5 CB |
3678 | |
3679 | /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ | |
b481de9c ZY |
3680 | rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr); |
3681 | if (!rxq->bd) | |
3682 | return -ENOMEM; | |
6440adb5 | 3683 | |
b481de9c ZY |
3684 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
3685 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) | |
3686 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
6440adb5 | 3687 | |
b481de9c ZY |
3688 | /* Set us so that we have processed and used all buffers, but have |
3689 | * not restocked the Rx queue with fresh buffers */ | |
3690 | rxq->read = rxq->write = 0; | |
3691 | rxq->free_count = 0; | |
3692 | rxq->need_update = 0; | |
3693 | return 0; | |
3694 | } | |
3695 | ||
bb8c093b | 3696 | void iwl3945_rx_queue_reset(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3697 | { |
3698 | unsigned long flags; | |
3699 | int i; | |
3700 | spin_lock_irqsave(&rxq->lock, flags); | |
3701 | INIT_LIST_HEAD(&rxq->rx_free); | |
3702 | INIT_LIST_HEAD(&rxq->rx_used); | |
3703 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
3704 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
3705 | /* In the reset function, these buffers may have been allocated | |
3706 | * to an SKB, so we need to unmap and free potential storage */ | |
3707 | if (rxq->pool[i].skb != NULL) { | |
3708 | pci_unmap_single(priv->pci_dev, | |
3709 | rxq->pool[i].dma_addr, | |
3710 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3711 | priv->alloc_rxb_skb--; | |
3712 | dev_kfree_skb(rxq->pool[i].skb); | |
3713 | rxq->pool[i].skb = NULL; | |
3714 | } | |
3715 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
3716 | } | |
3717 | ||
3718 | /* Set us so that we have processed and used all buffers, but have | |
3719 | * not restocked the Rx queue with fresh buffers */ | |
3720 | rxq->read = rxq->write = 0; | |
3721 | rxq->free_count = 0; | |
3722 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3723 | } | |
3724 | ||
3725 | /* Convert linear signal-to-noise ratio into dB */ | |
3726 | static u8 ratio2dB[100] = { | |
3727 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
3728 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
3729 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
3730 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
3731 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
3732 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
3733 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
3734 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
3735 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
3736 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
3737 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
3738 | }; | |
3739 | ||
3740 | /* Calculates a relative dB value from a ratio of linear | |
3741 | * (i.e. not dB) signal levels. | |
3742 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 3743 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 3744 | { |
221c80cf AB |
3745 | /* 1000:1 or higher just report as 60 dB */ |
3746 | if (sig_ratio >= 1000) | |
b481de9c ZY |
3747 | return 60; |
3748 | ||
221c80cf | 3749 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 3750 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 3751 | if (sig_ratio >= 100) |
3ac7f146 | 3752 | return 20 + (int)ratio2dB[sig_ratio/10]; |
b481de9c ZY |
3753 | |
3754 | /* We shouldn't see this */ | |
3755 | if (sig_ratio < 1) | |
3756 | return 0; | |
3757 | ||
3758 | /* Use table for ratios 1:1 - 99:1 */ | |
3759 | return (int)ratio2dB[sig_ratio]; | |
3760 | } | |
3761 | ||
3762 | #define PERFECT_RSSI (-20) /* dBm */ | |
3763 | #define WORST_RSSI (-95) /* dBm */ | |
3764 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
3765 | ||
3766 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
3767 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
3768 | * about formulas used below. */ | |
bb8c093b | 3769 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
b481de9c ZY |
3770 | { |
3771 | int sig_qual; | |
3772 | int degradation = PERFECT_RSSI - rssi_dbm; | |
3773 | ||
3774 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
3775 | * as indicator; formula is (signal dbm - noise dbm). | |
3776 | * SNR at or above 40 is a great signal (100%). | |
3777 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
3778 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
3779 | if (noise_dbm) { | |
3780 | if (rssi_dbm - noise_dbm >= 40) | |
3781 | return 100; | |
3782 | else if (rssi_dbm < noise_dbm) | |
3783 | return 0; | |
3784 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
3785 | ||
3786 | /* Else use just the signal level. | |
3787 | * This formula is a least squares fit of data points collected and | |
3788 | * compared with a reference system that had a percentage (%) display | |
3789 | * for signal quality. */ | |
3790 | } else | |
3791 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
3792 | (15 * RSSI_RANGE + 62 * degradation)) / | |
3793 | (RSSI_RANGE * RSSI_RANGE); | |
3794 | ||
3795 | if (sig_qual > 100) | |
3796 | sig_qual = 100; | |
3797 | else if (sig_qual < 1) | |
3798 | sig_qual = 0; | |
3799 | ||
3800 | return sig_qual; | |
3801 | } | |
3802 | ||
3803 | /** | |
9fbab516 | 3804 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
3805 | * |
3806 | * Uses the priv->rx_handlers callback function array to invoke | |
3807 | * the appropriate handlers, including command responses, | |
3808 | * frame-received notifications, and other notifications. | |
3809 | */ | |
bb8c093b | 3810 | static void iwl3945_rx_handle(struct iwl3945_priv *priv) |
b481de9c | 3811 | { |
bb8c093b CH |
3812 | struct iwl3945_rx_mem_buffer *rxb; |
3813 | struct iwl3945_rx_packet *pkt; | |
3814 | struct iwl3945_rx_queue *rxq = &priv->rxq; | |
b481de9c ZY |
3815 | u32 r, i; |
3816 | int reclaim; | |
3817 | unsigned long flags; | |
5c0eef96 | 3818 | u8 fill_rx = 0; |
d68ab680 | 3819 | u32 count = 8; |
b481de9c | 3820 | |
6440adb5 CB |
3821 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
3822 | * buffer that the driver may process (last buffer filled by ucode). */ | |
bb8c093b | 3823 | r = iwl3945_hw_get_rx_read(priv); |
b481de9c ZY |
3824 | i = rxq->read; |
3825 | ||
5c0eef96 MA |
3826 | if (iwl3945_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
3827 | fill_rx = 1; | |
b481de9c ZY |
3828 | /* Rx interrupt, but nothing sent from uCode */ |
3829 | if (i == r) | |
3830 | IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i); | |
3831 | ||
3832 | while (i != r) { | |
3833 | rxb = rxq->queue[i]; | |
3834 | ||
9fbab516 | 3835 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
3836 | * then a bug has been introduced in the queue refilling |
3837 | * routines -- catch it here */ | |
3838 | BUG_ON(rxb == NULL); | |
3839 | ||
3840 | rxq->queue[i] = NULL; | |
3841 | ||
3842 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
3843 | IWL_RX_BUF_SIZE, | |
3844 | PCI_DMA_FROMDEVICE); | |
bb8c093b | 3845 | pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3846 | |
3847 | /* Reclaim a command buffer only if this packet is a response | |
3848 | * to a (driver-originated) command. | |
3849 | * If the packet (e.g. Rx frame) originated from uCode, | |
3850 | * there is no command buffer to reclaim. | |
3851 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
3852 | * but apparently a few don't get set; catch them here. */ | |
3853 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
3854 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
3855 | (pkt->hdr.cmd != REPLY_TX); | |
3856 | ||
3857 | /* Based on type of command response or notification, | |
3858 | * handle those that need handling via function in | |
bb8c093b | 3859 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c ZY |
3860 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
3861 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
3862 | "r = %d, i = %d, %s, 0x%02x\n", r, i, | |
3863 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
3864 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); | |
3865 | } else { | |
3866 | /* No handling needed */ | |
3867 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
3868 | "r %d i %d No handler needed for %s, 0x%02x\n", | |
3869 | r, i, get_cmd_string(pkt->hdr.cmd), | |
3870 | pkt->hdr.cmd); | |
3871 | } | |
3872 | ||
3873 | if (reclaim) { | |
9fbab516 BC |
3874 | /* Invoke any callbacks, transfer the skb to caller, and |
3875 | * fire off the (possibly) blocking iwl3945_send_cmd() | |
b481de9c ZY |
3876 | * as we reclaim the driver command queue */ |
3877 | if (rxb && rxb->skb) | |
bb8c093b | 3878 | iwl3945_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
3879 | else |
3880 | IWL_WARNING("Claim null rxb?\n"); | |
3881 | } | |
3882 | ||
3883 | /* For now we just don't re-use anything. We can tweak this | |
3884 | * later to try and re-use notification packets and SKBs that | |
3885 | * fail to Rx correctly */ | |
3886 | if (rxb->skb != NULL) { | |
3887 | priv->alloc_rxb_skb--; | |
3888 | dev_kfree_skb_any(rxb->skb); | |
3889 | rxb->skb = NULL; | |
3890 | } | |
3891 | ||
3892 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
3893 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3894 | spin_lock_irqsave(&rxq->lock, flags); | |
3895 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
3896 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3897 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
3898 | /* If there are a lot of unused frames, |
3899 | * restock the Rx queue so ucode won't assert. */ | |
3900 | if (fill_rx) { | |
3901 | count++; | |
3902 | if (count >= 8) { | |
3903 | priv->rxq.read = i; | |
3904 | __iwl3945_rx_replenish(priv); | |
3905 | count = 0; | |
3906 | } | |
3907 | } | |
b481de9c ZY |
3908 | } |
3909 | ||
3910 | /* Backtrack one entry */ | |
3911 | priv->rxq.read = i; | |
bb8c093b | 3912 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3913 | } |
3914 | ||
6440adb5 CB |
3915 | /** |
3916 | * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware | |
3917 | */ | |
bb8c093b CH |
3918 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
3919 | struct iwl3945_tx_queue *txq) | |
b481de9c ZY |
3920 | { |
3921 | u32 reg = 0; | |
3922 | int rc = 0; | |
3923 | int txq_id = txq->q.id; | |
3924 | ||
3925 | if (txq->need_update == 0) | |
3926 | return rc; | |
3927 | ||
3928 | /* if we're trying to save power */ | |
3929 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { | |
3930 | /* wake up nic if it's powered down ... | |
3931 | * uCode will wake up, and interrupt us again, so next | |
3932 | * time we'll skip this part. */ | |
bb8c093b | 3933 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3934 | |
3935 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
3936 | IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg); | |
bb8c093b | 3937 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3938 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3939 | return rc; | |
3940 | } | |
3941 | ||
3942 | /* restore this queue's parameters in nic hardware. */ | |
bb8c093b | 3943 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3944 | if (rc) |
3945 | return rc; | |
bb8c093b | 3946 | iwl3945_write_direct32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 3947 | txq->q.write_ptr | (txq_id << 8)); |
bb8c093b | 3948 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
3949 | |
3950 | /* else not in power-save mode, uCode will never sleep when we're | |
3951 | * trying to tx (during RFKILL, we're not trying to tx). */ | |
3952 | } else | |
bb8c093b | 3953 | iwl3945_write32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 3954 | txq->q.write_ptr | (txq_id << 8)); |
b481de9c ZY |
3955 | |
3956 | txq->need_update = 0; | |
3957 | ||
3958 | return rc; | |
3959 | } | |
3960 | ||
c8b0e6e1 | 3961 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 3962 | static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c ZY |
3963 | { |
3964 | IWL_DEBUG_RADIO("RX CONFIG:\n"); | |
bb8c093b | 3965 | iwl3945_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
3966 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
3967 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
3968 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
3969 | le32_to_cpu(rxon->filter_flags)); | |
3970 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
3971 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
3972 | rxon->ofdm_basic_rates); | |
3973 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
e174961c JB |
3974 | IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr); |
3975 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
b481de9c ZY |
3976 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
3977 | } | |
3978 | #endif | |
3979 | ||
bb8c093b | 3980 | static void iwl3945_enable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
3981 | { |
3982 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
3983 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
bb8c093b | 3984 | iwl3945_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
3985 | } |
3986 | ||
0359facc MA |
3987 | |
3988 | /* call this function to flush any scheduled tasklet */ | |
3989 | static inline void iwl_synchronize_irq(struct iwl3945_priv *priv) | |
3990 | { | |
a96a27f9 | 3991 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
3992 | synchronize_irq(priv->pci_dev->irq); |
3993 | tasklet_kill(&priv->irq_tasklet); | |
3994 | } | |
3995 | ||
3996 | ||
bb8c093b | 3997 | static inline void iwl3945_disable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
3998 | { |
3999 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
4000 | ||
4001 | /* disable interrupts from uCode/NIC to host */ | |
bb8c093b | 4002 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
4003 | |
4004 | /* acknowledge/clear/reset any interrupts still pending | |
4005 | * from uCode or flow handler (Rx/Tx DMA) */ | |
bb8c093b CH |
4006 | iwl3945_write32(priv, CSR_INT, 0xffffffff); |
4007 | iwl3945_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
4008 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
4009 | } | |
4010 | ||
4011 | static const char *desc_lookup(int i) | |
4012 | { | |
4013 | switch (i) { | |
4014 | case 1: | |
4015 | return "FAIL"; | |
4016 | case 2: | |
4017 | return "BAD_PARAM"; | |
4018 | case 3: | |
4019 | return "BAD_CHECKSUM"; | |
4020 | case 4: | |
4021 | return "NMI_INTERRUPT"; | |
4022 | case 5: | |
4023 | return "SYSASSERT"; | |
4024 | case 6: | |
4025 | return "FATAL_ERROR"; | |
4026 | } | |
4027 | ||
4028 | return "UNKNOWN"; | |
4029 | } | |
4030 | ||
4031 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
4032 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
4033 | ||
bb8c093b | 4034 | static void iwl3945_dump_nic_error_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4035 | { |
4036 | u32 i; | |
4037 | u32 desc, time, count, base, data1; | |
4038 | u32 blink1, blink2, ilink1, ilink2; | |
4039 | int rc; | |
4040 | ||
4041 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
4042 | ||
bb8c093b | 4043 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4044 | IWL_ERROR("Not valid error log pointer 0x%08X\n", base); |
4045 | return; | |
4046 | } | |
4047 | ||
bb8c093b | 4048 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4049 | if (rc) { |
4050 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4051 | return; | |
4052 | } | |
4053 | ||
bb8c093b | 4054 | count = iwl3945_read_targ_mem(priv, base); |
b481de9c ZY |
4055 | |
4056 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
4057 | IWL_ERROR("Start IWL Error Log Dump:\n"); | |
2acae16e | 4058 | IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); |
b481de9c ZY |
4059 | } |
4060 | ||
4061 | IWL_ERROR("Desc Time asrtPC blink2 " | |
4062 | "ilink1 nmiPC Line\n"); | |
4063 | for (i = ERROR_START_OFFSET; | |
4064 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
4065 | i += ERROR_ELEM_SIZE) { | |
bb8c093b | 4066 | desc = iwl3945_read_targ_mem(priv, base + i); |
b481de9c | 4067 | time = |
bb8c093b | 4068 | iwl3945_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 4069 | blink1 = |
bb8c093b | 4070 | iwl3945_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 4071 | blink2 = |
bb8c093b | 4072 | iwl3945_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 4073 | ilink1 = |
bb8c093b | 4074 | iwl3945_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 4075 | ilink2 = |
bb8c093b | 4076 | iwl3945_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 4077 | data1 = |
bb8c093b | 4078 | iwl3945_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c ZY |
4079 | |
4080 | IWL_ERROR | |
4081 | ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
4082 | desc_lookup(desc), desc, time, blink1, blink2, | |
4083 | ilink1, ilink2, data1); | |
4084 | } | |
4085 | ||
bb8c093b | 4086 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4087 | |
4088 | } | |
4089 | ||
f58177b9 | 4090 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
4091 | |
4092 | /** | |
bb8c093b | 4093 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 4094 | * |
bb8c093b | 4095 | * NOTE: Must be called with iwl3945_grab_nic_access() already obtained! |
b481de9c | 4096 | */ |
bb8c093b | 4097 | static void iwl3945_print_event_log(struct iwl3945_priv *priv, u32 start_idx, |
b481de9c ZY |
4098 | u32 num_events, u32 mode) |
4099 | { | |
4100 | u32 i; | |
4101 | u32 base; /* SRAM byte address of event log header */ | |
4102 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
4103 | u32 ptr; /* SRAM byte address of log data */ | |
4104 | u32 ev, time, data; /* event log data */ | |
4105 | ||
4106 | if (num_events == 0) | |
4107 | return; | |
4108 | ||
4109 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
4110 | ||
4111 | if (mode == 0) | |
4112 | event_size = 2 * sizeof(u32); | |
4113 | else | |
4114 | event_size = 3 * sizeof(u32); | |
4115 | ||
4116 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
4117 | ||
4118 | /* "time" is actually "data" for mode 0 (no timestamp). | |
4119 | * place event id # at far right for easier visual parsing. */ | |
4120 | for (i = 0; i < num_events; i++) { | |
bb8c093b | 4121 | ev = iwl3945_read_targ_mem(priv, ptr); |
b481de9c | 4122 | ptr += sizeof(u32); |
bb8c093b | 4123 | time = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4124 | ptr += sizeof(u32); |
4125 | if (mode == 0) | |
4126 | IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */ | |
4127 | else { | |
bb8c093b | 4128 | data = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4129 | ptr += sizeof(u32); |
4130 | IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev); | |
4131 | } | |
4132 | } | |
4133 | } | |
4134 | ||
bb8c093b | 4135 | static void iwl3945_dump_nic_event_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4136 | { |
4137 | int rc; | |
4138 | u32 base; /* SRAM byte address of event log header */ | |
4139 | u32 capacity; /* event log capacity in # entries */ | |
4140 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
4141 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
4142 | u32 next_entry; /* index of next entry to be written by uCode */ | |
4143 | u32 size; /* # entries that we'll print */ | |
4144 | ||
4145 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 4146 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4147 | IWL_ERROR("Invalid event log pointer 0x%08X\n", base); |
4148 | return; | |
4149 | } | |
4150 | ||
bb8c093b | 4151 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4152 | if (rc) { |
4153 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4154 | return; | |
4155 | } | |
4156 | ||
4157 | /* event log header */ | |
bb8c093b CH |
4158 | capacity = iwl3945_read_targ_mem(priv, base); |
4159 | mode = iwl3945_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
4160 | num_wraps = iwl3945_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
4161 | next_entry = iwl3945_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c ZY |
4162 | |
4163 | size = num_wraps ? capacity : next_entry; | |
4164 | ||
4165 | /* bail out if nothing in log */ | |
4166 | if (size == 0) { | |
583fab37 | 4167 | IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); |
bb8c093b | 4168 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4169 | return; |
4170 | } | |
4171 | ||
583fab37 | 4172 | IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", |
b481de9c ZY |
4173 | size, num_wraps); |
4174 | ||
4175 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
4176 | * i.e the next one that uCode would fill. */ | |
4177 | if (num_wraps) | |
bb8c093b | 4178 | iwl3945_print_event_log(priv, next_entry, |
b481de9c ZY |
4179 | capacity - next_entry, mode); |
4180 | ||
4181 | /* (then/else) start at top of log */ | |
bb8c093b | 4182 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
b481de9c | 4183 | |
bb8c093b | 4184 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4185 | } |
4186 | ||
4187 | /** | |
bb8c093b | 4188 | * iwl3945_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 4189 | */ |
bb8c093b | 4190 | static void iwl3945_irq_handle_error(struct iwl3945_priv *priv) |
b481de9c | 4191 | { |
bb8c093b | 4192 | /* Set the FW error flag -- cleared on iwl3945_down */ |
b481de9c ZY |
4193 | set_bit(STATUS_FW_ERROR, &priv->status); |
4194 | ||
4195 | /* Cancel currently queued command. */ | |
4196 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
4197 | ||
c8b0e6e1 | 4198 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4199 | if (iwl3945_debug_level & IWL_DL_FW_ERRORS) { |
4200 | iwl3945_dump_nic_error_log(priv); | |
4201 | iwl3945_dump_nic_event_log(priv); | |
4202 | iwl3945_print_rx_config_cmd(&priv->staging_rxon); | |
b481de9c ZY |
4203 | } |
4204 | #endif | |
4205 | ||
4206 | wake_up_interruptible(&priv->wait_command_queue); | |
4207 | ||
4208 | /* Keep the restart process from trying to send host | |
4209 | * commands by clearing the INIT status bit */ | |
4210 | clear_bit(STATUS_READY, &priv->status); | |
4211 | ||
4212 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
4213 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS, | |
4214 | "Restarting adapter due to uCode error.\n"); | |
4215 | ||
bb8c093b | 4216 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4217 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
4218 | sizeof(priv->recovery_rxon)); | |
4219 | priv->error_recovering = 1; | |
4220 | } | |
4221 | queue_work(priv->workqueue, &priv->restart); | |
4222 | } | |
4223 | } | |
4224 | ||
bb8c093b | 4225 | static void iwl3945_error_recovery(struct iwl3945_priv *priv) |
b481de9c ZY |
4226 | { |
4227 | unsigned long flags; | |
4228 | ||
4229 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
4230 | sizeof(priv->staging_rxon)); | |
4231 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4232 | iwl3945_commit_rxon(priv); |
b481de9c | 4233 | |
bb8c093b | 4234 | iwl3945_add_station(priv, priv->bssid, 1, 0); |
b481de9c ZY |
4235 | |
4236 | spin_lock_irqsave(&priv->lock, flags); | |
4237 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
4238 | priv->error_recovering = 0; | |
4239 | spin_unlock_irqrestore(&priv->lock, flags); | |
4240 | } | |
4241 | ||
bb8c093b | 4242 | static void iwl3945_irq_tasklet(struct iwl3945_priv *priv) |
b481de9c ZY |
4243 | { |
4244 | u32 inta, handled = 0; | |
4245 | u32 inta_fh; | |
4246 | unsigned long flags; | |
c8b0e6e1 | 4247 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
4248 | u32 inta_mask; |
4249 | #endif | |
4250 | ||
4251 | spin_lock_irqsave(&priv->lock, flags); | |
4252 | ||
4253 | /* Ack/clear/reset pending uCode interrupts. | |
4254 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
4255 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
bb8c093b CH |
4256 | inta = iwl3945_read32(priv, CSR_INT); |
4257 | iwl3945_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
4258 | |
4259 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
4260 | * Any new interrupts that happen after this, either while we're | |
4261 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
bb8c093b CH |
4262 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); |
4263 | iwl3945_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 4264 | |
c8b0e6e1 | 4265 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4266 | if (iwl3945_debug_level & IWL_DL_ISR) { |
9fbab516 BC |
4267 | /* just for debug */ |
4268 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
b481de9c ZY |
4269 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
4270 | inta, inta_mask, inta_fh); | |
4271 | } | |
4272 | #endif | |
4273 | ||
4274 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
4275 | * atomic, make sure that inta covers all the interrupts that | |
4276 | * we've discovered, even if FH interrupt came in just after | |
4277 | * reading CSR_INT. */ | |
6f83eaa1 | 4278 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 4279 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 4280 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
4281 | inta |= CSR_INT_BIT_FH_TX; |
4282 | ||
4283 | /* Now service all interrupt bits discovered above. */ | |
4284 | if (inta & CSR_INT_BIT_HW_ERR) { | |
4285 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
4286 | ||
4287 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 4288 | iwl3945_disable_interrupts(priv); |
b481de9c | 4289 | |
bb8c093b | 4290 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4291 | |
4292 | handled |= CSR_INT_BIT_HW_ERR; | |
4293 | ||
4294 | spin_unlock_irqrestore(&priv->lock, flags); | |
4295 | ||
4296 | return; | |
4297 | } | |
4298 | ||
c8b0e6e1 | 4299 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4300 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
b481de9c | 4301 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
4302 | if (inta & CSR_INT_BIT_SCD) |
4303 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
4304 | "the frame/frames.\n"); | |
b481de9c ZY |
4305 | |
4306 | /* Alive notification via Rx interrupt will do the real work */ | |
4307 | if (inta & CSR_INT_BIT_ALIVE) | |
4308 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
4309 | } | |
4310 | #endif | |
4311 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 4312 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c ZY |
4313 | |
4314 | /* HW RF KILL switch toggled (4965 only) */ | |
4315 | if (inta & CSR_INT_BIT_RF_KILL) { | |
4316 | int hw_rf_kill = 0; | |
bb8c093b | 4317 | if (!(iwl3945_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
4318 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
4319 | hw_rf_kill = 1; | |
4320 | ||
4321 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR, | |
4322 | "RF_KILL bit toggled to %s.\n", | |
c3056065 | 4323 | hw_rf_kill ? "disable radio" : "enable radio"); |
b481de9c ZY |
4324 | |
4325 | /* Queue restart only if RF_KILL switch was set to "kill" | |
4326 | * when we loaded driver, and is now set to "enable". | |
4327 | * After we're Alive, RF_KILL gets handled by | |
3230455d | 4328 | * iwl3945_rx_card_state_notif() */ |
53e49093 ZY |
4329 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) { |
4330 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
b481de9c | 4331 | queue_work(priv->workqueue, &priv->restart); |
53e49093 | 4332 | } |
b481de9c ZY |
4333 | |
4334 | handled |= CSR_INT_BIT_RF_KILL; | |
4335 | } | |
4336 | ||
4337 | /* Chip got too hot and stopped itself (4965 only) */ | |
4338 | if (inta & CSR_INT_BIT_CT_KILL) { | |
4339 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
4340 | handled |= CSR_INT_BIT_CT_KILL; | |
4341 | } | |
4342 | ||
4343 | /* Error detected by uCode */ | |
4344 | if (inta & CSR_INT_BIT_SW_ERR) { | |
4345 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
4346 | inta); | |
bb8c093b | 4347 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4348 | handled |= CSR_INT_BIT_SW_ERR; |
4349 | } | |
4350 | ||
4351 | /* uCode wakes up after power-down sleep */ | |
4352 | if (inta & CSR_INT_BIT_WAKEUP) { | |
4353 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
bb8c093b CH |
4354 | iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq); |
4355 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]); | |
4356 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]); | |
4357 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]); | |
4358 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]); | |
4359 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]); | |
4360 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
4361 | |
4362 | handled |= CSR_INT_BIT_WAKEUP; | |
4363 | } | |
4364 | ||
4365 | /* All uCode command responses, including Tx command responses, | |
4366 | * Rx "responses" (frame-received notification), and other | |
4367 | * notifications from uCode come through here*/ | |
4368 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 4369 | iwl3945_rx_handle(priv); |
b481de9c ZY |
4370 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
4371 | } | |
4372 | ||
4373 | if (inta & CSR_INT_BIT_FH_TX) { | |
4374 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
4375 | ||
bb8c093b CH |
4376 | iwl3945_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
4377 | if (!iwl3945_grab_nic_access(priv)) { | |
4378 | iwl3945_write_direct32(priv, | |
b481de9c ZY |
4379 | FH_TCSR_CREDIT |
4380 | (ALM_FH_SRVC_CHNL), 0x0); | |
bb8c093b | 4381 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4382 | } |
4383 | handled |= CSR_INT_BIT_FH_TX; | |
4384 | } | |
4385 | ||
4386 | if (inta & ~handled) | |
4387 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
4388 | ||
4389 | if (inta & ~CSR_INI_SET_MASK) { | |
4390 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
4391 | inta & ~CSR_INI_SET_MASK); | |
4392 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
4393 | } | |
4394 | ||
4395 | /* Re-enable all interrupts */ | |
0359facc MA |
4396 | /* only Re-enable if disabled by irq */ |
4397 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4398 | iwl3945_enable_interrupts(priv); | |
b481de9c | 4399 | |
c8b0e6e1 | 4400 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4401 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
4402 | inta = iwl3945_read32(priv, CSR_INT); | |
4403 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
4404 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4405 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
4406 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
4407 | } | |
4408 | #endif | |
4409 | spin_unlock_irqrestore(&priv->lock, flags); | |
4410 | } | |
4411 | ||
bb8c093b | 4412 | static irqreturn_t iwl3945_isr(int irq, void *data) |
b481de9c | 4413 | { |
bb8c093b | 4414 | struct iwl3945_priv *priv = data; |
b481de9c ZY |
4415 | u32 inta, inta_mask; |
4416 | u32 inta_fh; | |
4417 | if (!priv) | |
4418 | return IRQ_NONE; | |
4419 | ||
4420 | spin_lock(&priv->lock); | |
4421 | ||
4422 | /* Disable (but don't clear!) interrupts here to avoid | |
4423 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
4424 | * If we have something to service, the tasklet will re-enable ints. | |
4425 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
bb8c093b CH |
4426 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); /* just for debug */ |
4427 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
4428 | |
4429 | /* Discover which interrupts are active/pending */ | |
bb8c093b CH |
4430 | inta = iwl3945_read32(priv, CSR_INT); |
4431 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4432 | |
4433 | /* Ignore interrupt if there's nothing in NIC to service. | |
4434 | * This may be due to IRQ shared with another device, | |
4435 | * or due to sporadic interrupts thrown from our NIC. */ | |
4436 | if (!inta && !inta_fh) { | |
4437 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
4438 | goto none; | |
4439 | } | |
4440 | ||
4441 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
4442 | /* Hardware disappeared */ | |
4443 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); | |
cb4da1a3 | 4444 | goto unplugged; |
b481de9c ZY |
4445 | } |
4446 | ||
4447 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
4448 | inta, inta_mask, inta_fh); | |
4449 | ||
25c03d8e JP |
4450 | inta &= ~CSR_INT_BIT_SCD; |
4451 | ||
bb8c093b | 4452 | /* iwl3945_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
4453 | if (likely(inta || inta_fh)) |
4454 | tasklet_schedule(&priv->irq_tasklet); | |
cb4da1a3 | 4455 | unplugged: |
b481de9c ZY |
4456 | spin_unlock(&priv->lock); |
4457 | ||
4458 | return IRQ_HANDLED; | |
4459 | ||
4460 | none: | |
4461 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
4462 | /* only Re-enable if disabled by irq */ |
4463 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4464 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
4465 | spin_unlock(&priv->lock); |
4466 | return IRQ_NONE; | |
4467 | } | |
4468 | ||
4469 | /************************** EEPROM BANDS **************************** | |
4470 | * | |
bb8c093b | 4471 | * The iwl3945_eeprom_band definitions below provide the mapping from the |
b481de9c ZY |
4472 | * EEPROM contents to the specific channel number supported for each |
4473 | * band. | |
4474 | * | |
bb8c093b | 4475 | * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3 |
b481de9c ZY |
4476 | * definition below maps to physical channel 42 in the 5.2GHz spectrum. |
4477 | * The specific geography and calibration information for that channel | |
4478 | * is contained in the eeprom map itself. | |
4479 | * | |
4480 | * During init, we copy the eeprom information and channel map | |
4481 | * information into priv->channel_info_24/52 and priv->channel_map_24/52 | |
4482 | * | |
4483 | * channel_map_24/52 provides the index in the channel_info array for a | |
4484 | * given channel. We have to have two separate maps as there is channel | |
4485 | * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and | |
4486 | * band_2 | |
4487 | * | |
4488 | * A value of 0xff stored in the channel_map indicates that the channel | |
4489 | * is not supported by the hardware at all. | |
4490 | * | |
4491 | * A value of 0xfe in the channel_map indicates that the channel is not | |
4492 | * valid for Tx with the current hardware. This means that | |
4493 | * while the system can tune and receive on a given channel, it may not | |
4494 | * be able to associate or transmit any frames on that | |
4495 | * channel. There is no corresponding channel information for that | |
4496 | * entry. | |
4497 | * | |
4498 | *********************************************************************/ | |
4499 | ||
4500 | /* 2.4 GHz */ | |
bb8c093b | 4501 | static const u8 iwl3945_eeprom_band_1[14] = { |
b481de9c ZY |
4502 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
4503 | }; | |
4504 | ||
4505 | /* 5.2 GHz bands */ | |
9fbab516 | 4506 | static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */ |
b481de9c ZY |
4507 | 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
4508 | }; | |
4509 | ||
9fbab516 | 4510 | static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */ |
b481de9c ZY |
4511 | 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
4512 | }; | |
4513 | ||
bb8c093b | 4514 | static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */ |
b481de9c ZY |
4515 | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
4516 | }; | |
4517 | ||
bb8c093b | 4518 | static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */ |
b481de9c ZY |
4519 | 145, 149, 153, 157, 161, 165 |
4520 | }; | |
4521 | ||
bb8c093b | 4522 | static void iwl3945_init_band_reference(const struct iwl3945_priv *priv, int band, |
b481de9c | 4523 | int *eeprom_ch_count, |
bb8c093b | 4524 | const struct iwl3945_eeprom_channel |
b481de9c ZY |
4525 | **eeprom_ch_info, |
4526 | const u8 **eeprom_ch_index) | |
4527 | { | |
4528 | switch (band) { | |
4529 | case 1: /* 2.4GHz band */ | |
bb8c093b | 4530 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1); |
b481de9c | 4531 | *eeprom_ch_info = priv->eeprom.band_1_channels; |
bb8c093b | 4532 | *eeprom_ch_index = iwl3945_eeprom_band_1; |
b481de9c | 4533 | break; |
9fbab516 | 4534 | case 2: /* 4.9GHz band */ |
bb8c093b | 4535 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2); |
b481de9c | 4536 | *eeprom_ch_info = priv->eeprom.band_2_channels; |
bb8c093b | 4537 | *eeprom_ch_index = iwl3945_eeprom_band_2; |
b481de9c ZY |
4538 | break; |
4539 | case 3: /* 5.2GHz band */ | |
bb8c093b | 4540 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3); |
b481de9c | 4541 | *eeprom_ch_info = priv->eeprom.band_3_channels; |
bb8c093b | 4542 | *eeprom_ch_index = iwl3945_eeprom_band_3; |
b481de9c | 4543 | break; |
9fbab516 | 4544 | case 4: /* 5.5GHz band */ |
bb8c093b | 4545 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4); |
b481de9c | 4546 | *eeprom_ch_info = priv->eeprom.band_4_channels; |
bb8c093b | 4547 | *eeprom_ch_index = iwl3945_eeprom_band_4; |
b481de9c | 4548 | break; |
9fbab516 | 4549 | case 5: /* 5.7GHz band */ |
bb8c093b | 4550 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5); |
b481de9c | 4551 | *eeprom_ch_info = priv->eeprom.band_5_channels; |
bb8c093b | 4552 | *eeprom_ch_index = iwl3945_eeprom_band_5; |
b481de9c ZY |
4553 | break; |
4554 | default: | |
4555 | BUG(); | |
4556 | return; | |
4557 | } | |
4558 | } | |
4559 | ||
6440adb5 CB |
4560 | /** |
4561 | * iwl3945_get_channel_info - Find driver's private channel info | |
4562 | * | |
4563 | * Based on band and channel number. | |
4564 | */ | |
bb8c093b | 4565 | const struct iwl3945_channel_info *iwl3945_get_channel_info(const struct iwl3945_priv *priv, |
8318d78a | 4566 | enum ieee80211_band band, u16 channel) |
b481de9c ZY |
4567 | { |
4568 | int i; | |
4569 | ||
8318d78a JB |
4570 | switch (band) { |
4571 | case IEEE80211_BAND_5GHZ: | |
b481de9c ZY |
4572 | for (i = 14; i < priv->channel_count; i++) { |
4573 | if (priv->channel_info[i].channel == channel) | |
4574 | return &priv->channel_info[i]; | |
4575 | } | |
4576 | break; | |
4577 | ||
8318d78a | 4578 | case IEEE80211_BAND_2GHZ: |
b481de9c ZY |
4579 | if (channel >= 1 && channel <= 14) |
4580 | return &priv->channel_info[channel - 1]; | |
4581 | break; | |
8318d78a JB |
4582 | case IEEE80211_NUM_BANDS: |
4583 | WARN_ON(1); | |
b481de9c ZY |
4584 | } |
4585 | ||
4586 | return NULL; | |
4587 | } | |
4588 | ||
4589 | #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ | |
4590 | ? # x " " : "") | |
4591 | ||
6440adb5 CB |
4592 | /** |
4593 | * iwl3945_init_channel_map - Set up driver's info for all possible channels | |
4594 | */ | |
bb8c093b | 4595 | static int iwl3945_init_channel_map(struct iwl3945_priv *priv) |
b481de9c ZY |
4596 | { |
4597 | int eeprom_ch_count = 0; | |
4598 | const u8 *eeprom_ch_index = NULL; | |
bb8c093b | 4599 | const struct iwl3945_eeprom_channel *eeprom_ch_info = NULL; |
b481de9c | 4600 | int band, ch; |
bb8c093b | 4601 | struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4602 | |
4603 | if (priv->channel_count) { | |
4604 | IWL_DEBUG_INFO("Channel map already initialized.\n"); | |
4605 | return 0; | |
4606 | } | |
4607 | ||
4608 | if (priv->eeprom.version < 0x2f) { | |
4609 | IWL_WARNING("Unsupported EEPROM version: 0x%04X\n", | |
4610 | priv->eeprom.version); | |
4611 | return -EINVAL; | |
4612 | } | |
4613 | ||
4614 | IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n"); | |
4615 | ||
4616 | priv->channel_count = | |
bb8c093b CH |
4617 | ARRAY_SIZE(iwl3945_eeprom_band_1) + |
4618 | ARRAY_SIZE(iwl3945_eeprom_band_2) + | |
4619 | ARRAY_SIZE(iwl3945_eeprom_band_3) + | |
4620 | ARRAY_SIZE(iwl3945_eeprom_band_4) + | |
4621 | ARRAY_SIZE(iwl3945_eeprom_band_5); | |
b481de9c ZY |
4622 | |
4623 | IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count); | |
4624 | ||
bb8c093b | 4625 | priv->channel_info = kzalloc(sizeof(struct iwl3945_channel_info) * |
b481de9c ZY |
4626 | priv->channel_count, GFP_KERNEL); |
4627 | if (!priv->channel_info) { | |
4628 | IWL_ERROR("Could not allocate channel_info\n"); | |
4629 | priv->channel_count = 0; | |
4630 | return -ENOMEM; | |
4631 | } | |
4632 | ||
4633 | ch_info = priv->channel_info; | |
4634 | ||
4635 | /* Loop through the 5 EEPROM bands adding them in order to the | |
4636 | * channel map we maintain (that contains additional information than | |
4637 | * what just in the EEPROM) */ | |
4638 | for (band = 1; band <= 5; band++) { | |
4639 | ||
bb8c093b | 4640 | iwl3945_init_band_reference(priv, band, &eeprom_ch_count, |
b481de9c ZY |
4641 | &eeprom_ch_info, &eeprom_ch_index); |
4642 | ||
4643 | /* Loop through each band adding each of the channels */ | |
4644 | for (ch = 0; ch < eeprom_ch_count; ch++) { | |
4645 | ch_info->channel = eeprom_ch_index[ch]; | |
8318d78a JB |
4646 | ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : |
4647 | IEEE80211_BAND_5GHZ; | |
b481de9c ZY |
4648 | |
4649 | /* permanently store EEPROM's channel regulatory flags | |
4650 | * and max power in channel info database. */ | |
4651 | ch_info->eeprom = eeprom_ch_info[ch]; | |
4652 | ||
4653 | /* Copy the run-time flags so they are there even on | |
4654 | * invalid channels */ | |
4655 | ch_info->flags = eeprom_ch_info[ch].flags; | |
4656 | ||
4657 | if (!(is_channel_valid(ch_info))) { | |
4658 | IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - " | |
4659 | "No traffic\n", | |
4660 | ch_info->channel, | |
4661 | ch_info->flags, | |
4662 | is_channel_a_band(ch_info) ? | |
4663 | "5.2" : "2.4"); | |
4664 | ch_info++; | |
4665 | continue; | |
4666 | } | |
4667 | ||
4668 | /* Initialize regulatory-based run-time data */ | |
4669 | ch_info->max_power_avg = ch_info->curr_txpow = | |
4670 | eeprom_ch_info[ch].max_power_avg; | |
4671 | ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; | |
4672 | ch_info->min_power = 0; | |
4673 | ||
fe7c4040 | 4674 | IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x" |
b481de9c ZY |
4675 | " %ddBm): Ad-Hoc %ssupported\n", |
4676 | ch_info->channel, | |
4677 | is_channel_a_band(ch_info) ? | |
4678 | "5.2" : "2.4", | |
8211ef78 | 4679 | CHECK_AND_PRINT(VALID), |
b481de9c ZY |
4680 | CHECK_AND_PRINT(IBSS), |
4681 | CHECK_AND_PRINT(ACTIVE), | |
4682 | CHECK_AND_PRINT(RADAR), | |
4683 | CHECK_AND_PRINT(WIDE), | |
b481de9c ZY |
4684 | CHECK_AND_PRINT(DFS), |
4685 | eeprom_ch_info[ch].flags, | |
4686 | eeprom_ch_info[ch].max_power_avg, | |
4687 | ((eeprom_ch_info[ch]. | |
4688 | flags & EEPROM_CHANNEL_IBSS) | |
4689 | && !(eeprom_ch_info[ch]. | |
4690 | flags & EEPROM_CHANNEL_RADAR)) | |
4691 | ? "" : "not "); | |
4692 | ||
4693 | /* Set the user_txpower_limit to the highest power | |
4694 | * supported by any channel */ | |
4695 | if (eeprom_ch_info[ch].max_power_avg > | |
4696 | priv->user_txpower_limit) | |
4697 | priv->user_txpower_limit = | |
4698 | eeprom_ch_info[ch].max_power_avg; | |
4699 | ||
4700 | ch_info++; | |
4701 | } | |
4702 | } | |
4703 | ||
6440adb5 | 4704 | /* Set up txpower settings in driver for all channels */ |
b481de9c ZY |
4705 | if (iwl3945_txpower_set_from_eeprom(priv)) |
4706 | return -EIO; | |
4707 | ||
4708 | return 0; | |
4709 | } | |
4710 | ||
849e0dce RC |
4711 | /* |
4712 | * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map | |
4713 | */ | |
4714 | static void iwl3945_free_channel_map(struct iwl3945_priv *priv) | |
4715 | { | |
4716 | kfree(priv->channel_info); | |
4717 | priv->channel_count = 0; | |
4718 | } | |
4719 | ||
b481de9c ZY |
4720 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
4721 | * sending probe req. This should be set long enough to hear probe responses | |
4722 | * from more than one AP. */ | |
f9340520 AK |
4723 | #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */ |
4724 | #define IWL_ACTIVE_DWELL_TIME_52 (20) | |
4725 | ||
4726 | #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3) | |
4727 | #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2) | |
b481de9c ZY |
4728 | |
4729 | /* For faster active scanning, scan will move to the next channel if fewer than | |
4730 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
4731 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
4732 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
4733 | * no other traffic). | |
4734 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
4735 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
f9340520 | 4736 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */ |
b481de9c ZY |
4737 | |
4738 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
4739 | * Must be set longer than active dwell time. | |
4740 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
4741 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
4742 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
4743 | #define IWL_PASSIVE_DWELL_BASE (100) | |
4744 | #define IWL_CHANNEL_TUNE_TIME 5 | |
4745 | ||
e720ce9d | 4746 | #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1))) |
f9340520 | 4747 | |
8318d78a | 4748 | static inline u16 iwl3945_get_active_dwell_time(struct iwl3945_priv *priv, |
f9340520 AK |
4749 | enum ieee80211_band band, |
4750 | u8 n_probes) | |
b481de9c | 4751 | { |
8318d78a | 4752 | if (band == IEEE80211_BAND_5GHZ) |
f9340520 AK |
4753 | return IWL_ACTIVE_DWELL_TIME_52 + |
4754 | IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1); | |
b481de9c | 4755 | else |
f9340520 AK |
4756 | return IWL_ACTIVE_DWELL_TIME_24 + |
4757 | IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1); | |
b481de9c ZY |
4758 | } |
4759 | ||
8318d78a JB |
4760 | static u16 iwl3945_get_passive_dwell_time(struct iwl3945_priv *priv, |
4761 | enum ieee80211_band band) | |
b481de9c | 4762 | { |
8318d78a | 4763 | u16 passive = (band == IEEE80211_BAND_2GHZ) ? |
b481de9c ZY |
4764 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
4765 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
4766 | ||
bb8c093b | 4767 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4768 | /* If we're associated, we clamp the maximum passive |
4769 | * dwell time to be 98% of the beacon interval (minus | |
4770 | * 2 * channel tune time) */ | |
4771 | passive = priv->beacon_int; | |
4772 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
4773 | passive = IWL_PASSIVE_DWELL_BASE; | |
4774 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
4775 | } | |
4776 | ||
b481de9c ZY |
4777 | return passive; |
4778 | } | |
4779 | ||
8318d78a JB |
4780 | static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv, |
4781 | enum ieee80211_band band, | |
f9340520 | 4782 | u8 is_active, u8 n_probes, |
bb8c093b | 4783 | struct iwl3945_scan_channel *scan_ch) |
b481de9c ZY |
4784 | { |
4785 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 4786 | const struct ieee80211_supported_band *sband; |
bb8c093b | 4787 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4788 | u16 passive_dwell = 0; |
4789 | u16 active_dwell = 0; | |
4790 | int added, i; | |
4791 | ||
8318d78a JB |
4792 | sband = iwl3945_get_band(priv, band); |
4793 | if (!sband) | |
b481de9c ZY |
4794 | return 0; |
4795 | ||
8318d78a | 4796 | channels = sband->channels; |
b481de9c | 4797 | |
f9340520 | 4798 | active_dwell = iwl3945_get_active_dwell_time(priv, band, n_probes); |
8318d78a | 4799 | passive_dwell = iwl3945_get_passive_dwell_time(priv, band); |
b481de9c | 4800 | |
8f4807a1 AK |
4801 | if (passive_dwell <= active_dwell) |
4802 | passive_dwell = active_dwell + 1; | |
4803 | ||
8318d78a | 4804 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
4805 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
4806 | continue; | |
4807 | ||
8318d78a | 4808 | scan_ch->channel = channels[i].hw_value; |
b481de9c | 4809 | |
8318d78a | 4810 | ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel); |
b481de9c | 4811 | if (!is_channel_valid(ch_info)) { |
66b5004d | 4812 | IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n", |
b481de9c ZY |
4813 | scan_ch->channel); |
4814 | continue; | |
4815 | } | |
4816 | ||
4817 | if (!is_active || is_channel_passive(ch_info) || | |
8318d78a | 4818 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) |
b481de9c ZY |
4819 | scan_ch->type = 0; /* passive */ |
4820 | else | |
4821 | scan_ch->type = 1; /* active */ | |
4822 | ||
f9340520 AK |
4823 | if ((scan_ch->type & 1) && n_probes) |
4824 | scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes); | |
b481de9c | 4825 | |
b481de9c ZY |
4826 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
4827 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
4828 | ||
9fbab516 | 4829 | /* Set txpower levels to defaults */ |
b481de9c ZY |
4830 | scan_ch->tpc.dsp_atten = 110; |
4831 | /* scan_pwr_info->tpc.dsp_atten; */ | |
4832 | ||
4833 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 4834 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
4835 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
4836 | else { | |
4837 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
4838 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 4839 | * power level: |
8a1b0245 | 4840 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
4841 | */ |
4842 | } | |
4843 | ||
4844 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
4845 | scan_ch->channel, | |
4846 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
4847 | (scan_ch->type & 1) ? | |
4848 | active_dwell : passive_dwell); | |
4849 | ||
4850 | scan_ch++; | |
4851 | added++; | |
4852 | } | |
4853 | ||
4854 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
4855 | return added; | |
4856 | } | |
4857 | ||
bb8c093b | 4858 | static void iwl3945_init_hw_rates(struct iwl3945_priv *priv, |
b481de9c ZY |
4859 | struct ieee80211_rate *rates) |
4860 | { | |
4861 | int i; | |
4862 | ||
4863 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
4864 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
4865 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
4866 | rates[i].hw_value_short = i; | |
4867 | rates[i].flags = 0; | |
4868 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
b481de9c | 4869 | /* |
8318d78a | 4870 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 4871 | */ |
bb8c093b | 4872 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 4873 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 4874 | } |
b481de9c ZY |
4875 | } |
4876 | } | |
4877 | ||
4878 | /** | |
bb8c093b | 4879 | * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom |
b481de9c | 4880 | */ |
bb8c093b | 4881 | static int iwl3945_init_geos(struct iwl3945_priv *priv) |
b481de9c | 4882 | { |
bb8c093b | 4883 | struct iwl3945_channel_info *ch; |
8211ef78 | 4884 | struct ieee80211_supported_band *sband; |
b481de9c ZY |
4885 | struct ieee80211_channel *channels; |
4886 | struct ieee80211_channel *geo_ch; | |
4887 | struct ieee80211_rate *rates; | |
4888 | int i = 0; | |
b481de9c | 4889 | |
8318d78a JB |
4890 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
4891 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
b481de9c ZY |
4892 | IWL_DEBUG_INFO("Geography modes already initialized.\n"); |
4893 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
4894 | return 0; | |
4895 | } | |
4896 | ||
b481de9c ZY |
4897 | channels = kzalloc(sizeof(struct ieee80211_channel) * |
4898 | priv->channel_count, GFP_KERNEL); | |
8318d78a | 4899 | if (!channels) |
b481de9c | 4900 | return -ENOMEM; |
b481de9c | 4901 | |
8211ef78 | 4902 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), |
b481de9c ZY |
4903 | GFP_KERNEL); |
4904 | if (!rates) { | |
b481de9c ZY |
4905 | kfree(channels); |
4906 | return -ENOMEM; | |
4907 | } | |
4908 | ||
b481de9c | 4909 | /* 5.2GHz channels start after the 2.4GHz channels */ |
8211ef78 TW |
4910 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
4911 | sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)]; | |
4912 | /* just OFDM */ | |
4913 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
4914 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
4915 | ||
4916 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
4917 | sband->channels = channels; | |
4918 | /* OFDM & CCK */ | |
4919 | sband->bitrates = rates; | |
4920 | sband->n_bitrates = IWL_RATE_COUNT; | |
b481de9c ZY |
4921 | |
4922 | priv->ieee_channels = channels; | |
4923 | priv->ieee_rates = rates; | |
4924 | ||
bb8c093b | 4925 | iwl3945_init_hw_rates(priv, rates); |
b481de9c | 4926 | |
8211ef78 | 4927 | for (i = 0; i < priv->channel_count; i++) { |
b481de9c ZY |
4928 | ch = &priv->channel_info[i]; |
4929 | ||
8211ef78 TW |
4930 | /* FIXME: might be removed if scan is OK*/ |
4931 | if (!is_channel_valid(ch)) | |
b481de9c | 4932 | continue; |
b481de9c ZY |
4933 | |
4934 | if (is_channel_a_band(ch)) | |
8211ef78 | 4935 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
8318d78a | 4936 | else |
8211ef78 | 4937 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
b481de9c | 4938 | |
8211ef78 TW |
4939 | geo_ch = &sband->channels[sband->n_channels++]; |
4940 | ||
4941 | geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel); | |
8318d78a JB |
4942 | geo_ch->max_power = ch->max_power_avg; |
4943 | geo_ch->max_antenna_gain = 0xff; | |
7b72304d | 4944 | geo_ch->hw_value = ch->channel; |
b481de9c ZY |
4945 | |
4946 | if (is_channel_valid(ch)) { | |
8318d78a JB |
4947 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
4948 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
b481de9c | 4949 | |
8318d78a JB |
4950 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
4951 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
b481de9c ZY |
4952 | |
4953 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
8318d78a | 4954 | geo_ch->flags |= IEEE80211_CHAN_RADAR; |
b481de9c ZY |
4955 | |
4956 | if (ch->max_power_avg > priv->max_channel_txpower_limit) | |
4957 | priv->max_channel_txpower_limit = | |
4958 | ch->max_power_avg; | |
8211ef78 | 4959 | } else { |
8318d78a | 4960 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
8211ef78 TW |
4961 | } |
4962 | ||
4963 | /* Save flags for reg domain usage */ | |
4964 | geo_ch->orig_flags = geo_ch->flags; | |
4965 | ||
4966 | IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n", | |
4967 | ch->channel, geo_ch->center_freq, | |
4968 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
4969 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
4970 | "restricted" : "valid", | |
4971 | geo_ch->flags); | |
b481de9c ZY |
4972 | } |
4973 | ||
82b9a121 TW |
4974 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
4975 | priv->cfg->sku & IWL_SKU_A) { | |
b481de9c ZY |
4976 | printk(KERN_INFO DRV_NAME |
4977 | ": Incorrectly detected BG card as ABG. Please send " | |
4978 | "your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
4979 | priv->pci_dev->device, priv->pci_dev->subsystem_device); | |
82b9a121 | 4980 | priv->cfg->sku &= ~IWL_SKU_A; |
b481de9c ZY |
4981 | } |
4982 | ||
4983 | printk(KERN_INFO DRV_NAME | |
4984 | ": Tunable channels: %d 802.11bg, %d 802.11a channels\n", | |
8318d78a JB |
4985 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
4986 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
b481de9c | 4987 | |
e0e0a67e JL |
4988 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
4989 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
4990 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
4991 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
4992 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
4993 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
b481de9c | 4994 | |
b481de9c ZY |
4995 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
4996 | ||
4997 | return 0; | |
4998 | } | |
4999 | ||
849e0dce RC |
5000 | /* |
5001 | * iwl3945_free_geos - undo allocations in iwl3945_init_geos | |
5002 | */ | |
5003 | static void iwl3945_free_geos(struct iwl3945_priv *priv) | |
5004 | { | |
849e0dce RC |
5005 | kfree(priv->ieee_channels); |
5006 | kfree(priv->ieee_rates); | |
5007 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
5008 | } | |
5009 | ||
b481de9c ZY |
5010 | /****************************************************************************** |
5011 | * | |
5012 | * uCode download functions | |
5013 | * | |
5014 | ******************************************************************************/ | |
5015 | ||
bb8c093b | 5016 | static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv *priv) |
b481de9c | 5017 | { |
98c92211 TW |
5018 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
5019 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
5020 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
5021 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
5022 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
5023 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
5024 | } |
5025 | ||
5026 | /** | |
bb8c093b | 5027 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5028 | * looking at all data. |
5029 | */ | |
3ac7f146 | 5030 | static int iwl3945_verify_inst_full(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5031 | { |
5032 | u32 val; | |
5033 | u32 save_len = len; | |
5034 | int rc = 0; | |
5035 | u32 errcnt; | |
5036 | ||
5037 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5038 | ||
bb8c093b | 5039 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5040 | if (rc) |
5041 | return rc; | |
5042 | ||
bb8c093b | 5043 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND); |
b481de9c ZY |
5044 | |
5045 | errcnt = 0; | |
5046 | for (; len > 0; len -= sizeof(u32), image++) { | |
5047 | /* read data comes through single port, auto-incr addr */ | |
5048 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5049 | * if IWL_DL_IO is set */ | |
bb8c093b | 5050 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5051 | if (val != le32_to_cpu(*image)) { |
5052 | IWL_ERROR("uCode INST section is invalid at " | |
5053 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5054 | save_len - len, val, le32_to_cpu(*image)); | |
5055 | rc = -EIO; | |
5056 | errcnt++; | |
5057 | if (errcnt >= 20) | |
5058 | break; | |
5059 | } | |
5060 | } | |
5061 | ||
bb8c093b | 5062 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5063 | |
5064 | if (!errcnt) | |
bc434dd2 | 5065 | IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n"); |
b481de9c ZY |
5066 | |
5067 | return rc; | |
5068 | } | |
5069 | ||
5070 | ||
5071 | /** | |
bb8c093b | 5072 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5073 | * using sample data 100 bytes apart. If these sample points are good, |
5074 | * it's a pretty good bet that everything between them is good, too. | |
5075 | */ | |
bb8c093b | 5076 | static int iwl3945_verify_inst_sparse(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5077 | { |
5078 | u32 val; | |
5079 | int rc = 0; | |
5080 | u32 errcnt = 0; | |
5081 | u32 i; | |
5082 | ||
5083 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5084 | ||
bb8c093b | 5085 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5086 | if (rc) |
5087 | return rc; | |
5088 | ||
5089 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
5090 | /* read data comes through single port, auto-incr addr */ | |
5091 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5092 | * if IWL_DL_IO is set */ | |
bb8c093b | 5093 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
b481de9c | 5094 | i + RTC_INST_LOWER_BOUND); |
bb8c093b | 5095 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5096 | if (val != le32_to_cpu(*image)) { |
5097 | #if 0 /* Enable this if you want to see details */ | |
5098 | IWL_ERROR("uCode INST section is invalid at " | |
5099 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5100 | i, val, *image); | |
5101 | #endif | |
5102 | rc = -EIO; | |
5103 | errcnt++; | |
5104 | if (errcnt >= 3) | |
5105 | break; | |
5106 | } | |
5107 | } | |
5108 | ||
bb8c093b | 5109 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5110 | |
5111 | return rc; | |
5112 | } | |
5113 | ||
5114 | ||
5115 | /** | |
bb8c093b | 5116 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
5117 | * and verify its contents |
5118 | */ | |
bb8c093b | 5119 | static int iwl3945_verify_ucode(struct iwl3945_priv *priv) |
b481de9c ZY |
5120 | { |
5121 | __le32 *image; | |
5122 | u32 len; | |
5123 | int rc = 0; | |
5124 | ||
5125 | /* Try bootstrap */ | |
5126 | image = (__le32 *)priv->ucode_boot.v_addr; | |
5127 | len = priv->ucode_boot.len; | |
bb8c093b | 5128 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5129 | if (rc == 0) { |
5130 | IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n"); | |
5131 | return 0; | |
5132 | } | |
5133 | ||
5134 | /* Try initialize */ | |
5135 | image = (__le32 *)priv->ucode_init.v_addr; | |
5136 | len = priv->ucode_init.len; | |
bb8c093b | 5137 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5138 | if (rc == 0) { |
5139 | IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n"); | |
5140 | return 0; | |
5141 | } | |
5142 | ||
5143 | /* Try runtime/protocol */ | |
5144 | image = (__le32 *)priv->ucode_code.v_addr; | |
5145 | len = priv->ucode_code.len; | |
bb8c093b | 5146 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5147 | if (rc == 0) { |
5148 | IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n"); | |
5149 | return 0; | |
5150 | } | |
5151 | ||
5152 | IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); | |
5153 | ||
9fbab516 BC |
5154 | /* Since nothing seems to match, show first several data entries in |
5155 | * instruction SRAM, so maybe visual inspection will give a clue. | |
5156 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
5157 | image = (__le32 *)priv->ucode_boot.v_addr; |
5158 | len = priv->ucode_boot.len; | |
bb8c093b | 5159 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
5160 | |
5161 | return rc; | |
5162 | } | |
5163 | ||
5164 | ||
5165 | /* check contents of special bootstrap uCode SRAM */ | |
bb8c093b | 5166 | static int iwl3945_verify_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5167 | { |
5168 | __le32 *image = priv->ucode_boot.v_addr; | |
5169 | u32 len = priv->ucode_boot.len; | |
5170 | u32 reg; | |
5171 | u32 val; | |
5172 | ||
5173 | IWL_DEBUG_INFO("Begin verify bsm\n"); | |
5174 | ||
5175 | /* verify BSM SRAM contents */ | |
bb8c093b | 5176 | val = iwl3945_read_prph(priv, BSM_WR_DWCOUNT_REG); |
b481de9c ZY |
5177 | for (reg = BSM_SRAM_LOWER_BOUND; |
5178 | reg < BSM_SRAM_LOWER_BOUND + len; | |
3ac7f146 | 5179 | reg += sizeof(u32), image++) { |
bb8c093b | 5180 | val = iwl3945_read_prph(priv, reg); |
b481de9c ZY |
5181 | if (val != le32_to_cpu(*image)) { |
5182 | IWL_ERROR("BSM uCode verification failed at " | |
5183 | "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", | |
5184 | BSM_SRAM_LOWER_BOUND, | |
5185 | reg - BSM_SRAM_LOWER_BOUND, len, | |
5186 | val, le32_to_cpu(*image)); | |
5187 | return -EIO; | |
5188 | } | |
5189 | } | |
5190 | ||
5191 | IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n"); | |
5192 | ||
5193 | return 0; | |
5194 | } | |
5195 | ||
5196 | /** | |
bb8c093b | 5197 | * iwl3945_load_bsm - Load bootstrap instructions |
b481de9c ZY |
5198 | * |
5199 | * BSM operation: | |
5200 | * | |
5201 | * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program | |
5202 | * in special SRAM that does not power down during RFKILL. When powering back | |
5203 | * up after power-saving sleeps (or during initial uCode load), the BSM loads | |
5204 | * the bootstrap program into the on-board processor, and starts it. | |
5205 | * | |
5206 | * The bootstrap program loads (via DMA) instructions and data for a new | |
5207 | * program from host DRAM locations indicated by the host driver in the | |
5208 | * BSM_DRAM_* registers. Once the new program is loaded, it starts | |
5209 | * automatically. | |
5210 | * | |
5211 | * When initializing the NIC, the host driver points the BSM to the | |
5212 | * "initialize" uCode image. This uCode sets up some internal data, then | |
5213 | * notifies host via "initialize alive" that it is complete. | |
5214 | * | |
5215 | * The host then replaces the BSM_DRAM_* pointer values to point to the | |
5216 | * normal runtime uCode instructions and a backup uCode data cache buffer | |
5217 | * (filled initially with starting data values for the on-board processor), | |
5218 | * then triggers the "initialize" uCode to load and launch the runtime uCode, | |
5219 | * which begins normal operation. | |
5220 | * | |
5221 | * When doing a power-save shutdown, runtime uCode saves data SRAM into | |
5222 | * the backup data cache in DRAM before SRAM is powered down. | |
5223 | * | |
5224 | * When powering back up, the BSM loads the bootstrap program. This reloads | |
5225 | * the runtime uCode instructions and the backup data cache into SRAM, | |
5226 | * and re-launches the runtime uCode from where it left off. | |
5227 | */ | |
bb8c093b | 5228 | static int iwl3945_load_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5229 | { |
5230 | __le32 *image = priv->ucode_boot.v_addr; | |
5231 | u32 len = priv->ucode_boot.len; | |
5232 | dma_addr_t pinst; | |
5233 | dma_addr_t pdata; | |
5234 | u32 inst_len; | |
5235 | u32 data_len; | |
5236 | int rc; | |
5237 | int i; | |
5238 | u32 done; | |
5239 | u32 reg_offset; | |
5240 | ||
5241 | IWL_DEBUG_INFO("Begin load bsm\n"); | |
5242 | ||
5243 | /* make sure bootstrap program is no larger than BSM's SRAM size */ | |
5244 | if (len > IWL_MAX_BSM_SIZE) | |
5245 | return -EINVAL; | |
5246 | ||
5247 | /* Tell bootstrap uCode where to find the "Initialize" uCode | |
9fbab516 | 5248 | * in host DRAM ... host DRAM physical address bits 31:0 for 3945. |
bb8c093b | 5249 | * NOTE: iwl3945_initialize_alive_start() will replace these values, |
b481de9c ZY |
5250 | * after the "initialize" uCode has run, to point to |
5251 | * runtime/protocol instructions and backup data cache. */ | |
5252 | pinst = priv->ucode_init.p_addr; | |
5253 | pdata = priv->ucode_init_data.p_addr; | |
5254 | inst_len = priv->ucode_init.len; | |
5255 | data_len = priv->ucode_init_data.len; | |
5256 | ||
bb8c093b | 5257 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5258 | if (rc) |
5259 | return rc; | |
5260 | ||
bb8c093b CH |
5261 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5262 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5263 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); | |
5264 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); | |
b481de9c ZY |
5265 | |
5266 | /* Fill BSM memory with bootstrap instructions */ | |
5267 | for (reg_offset = BSM_SRAM_LOWER_BOUND; | |
5268 | reg_offset < BSM_SRAM_LOWER_BOUND + len; | |
5269 | reg_offset += sizeof(u32), image++) | |
bb8c093b | 5270 | _iwl3945_write_prph(priv, reg_offset, |
b481de9c ZY |
5271 | le32_to_cpu(*image)); |
5272 | ||
bb8c093b | 5273 | rc = iwl3945_verify_bsm(priv); |
b481de9c | 5274 | if (rc) { |
bb8c093b | 5275 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5276 | return rc; |
5277 | } | |
5278 | ||
5279 | /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ | |
bb8c093b CH |
5280 | iwl3945_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); |
5281 | iwl3945_write_prph(priv, BSM_WR_MEM_DST_REG, | |
b481de9c | 5282 | RTC_INST_LOWER_BOUND); |
bb8c093b | 5283 | iwl3945_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); |
b481de9c ZY |
5284 | |
5285 | /* Load bootstrap code into instruction SRAM now, | |
5286 | * to prepare to load "initialize" uCode */ | |
bb8c093b | 5287 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5288 | BSM_WR_CTRL_REG_BIT_START); |
5289 | ||
5290 | /* Wait for load of bootstrap uCode to finish */ | |
5291 | for (i = 0; i < 100; i++) { | |
bb8c093b | 5292 | done = iwl3945_read_prph(priv, BSM_WR_CTRL_REG); |
b481de9c ZY |
5293 | if (!(done & BSM_WR_CTRL_REG_BIT_START)) |
5294 | break; | |
5295 | udelay(10); | |
5296 | } | |
5297 | if (i < 100) | |
5298 | IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i); | |
5299 | else { | |
5300 | IWL_ERROR("BSM write did not complete!\n"); | |
5301 | return -EIO; | |
5302 | } | |
5303 | ||
5304 | /* Enable future boot loads whenever power management unit triggers it | |
5305 | * (e.g. when powering back up after power-save shutdown) */ | |
bb8c093b | 5306 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5307 | BSM_WR_CTRL_REG_BIT_START_EN); |
5308 | ||
bb8c093b | 5309 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5310 | |
5311 | return 0; | |
5312 | } | |
5313 | ||
bb8c093b | 5314 | static void iwl3945_nic_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5315 | { |
5316 | /* Remove all resets to allow NIC to operate */ | |
bb8c093b | 5317 | iwl3945_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
5318 | } |
5319 | ||
5320 | /** | |
bb8c093b | 5321 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
5322 | * |
5323 | * Copy into buffers for card to fetch via bus-mastering | |
5324 | */ | |
bb8c093b | 5325 | static int iwl3945_read_ucode(struct iwl3945_priv *priv) |
b481de9c | 5326 | { |
bb8c093b | 5327 | struct iwl3945_ucode *ucode; |
90e759d1 | 5328 | int ret = 0; |
b481de9c ZY |
5329 | const struct firmware *ucode_raw; |
5330 | /* firmware file name contains uCode/driver compatibility version */ | |
4bf775cd | 5331 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
5332 | u8 *src; |
5333 | size_t len; | |
5334 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
5335 | ||
5336 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
5337 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
5338 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
5339 | if (ret < 0) { | |
5340 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
5341 | name, ret); | |
b481de9c ZY |
5342 | goto error; |
5343 | } | |
5344 | ||
5345 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
5346 | name, ucode_raw->size); | |
5347 | ||
5348 | /* Make sure that we got at least our header! */ | |
5349 | if (ucode_raw->size < sizeof(*ucode)) { | |
5350 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 5351 | ret = -EINVAL; |
b481de9c ZY |
5352 | goto err_release; |
5353 | } | |
5354 | ||
5355 | /* Data from ucode file: header followed by uCode images */ | |
5356 | ucode = (void *)ucode_raw->data; | |
5357 | ||
5358 | ver = le32_to_cpu(ucode->ver); | |
5359 | inst_size = le32_to_cpu(ucode->inst_size); | |
5360 | data_size = le32_to_cpu(ucode->data_size); | |
5361 | init_size = le32_to_cpu(ucode->init_size); | |
5362 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
5363 | boot_size = le32_to_cpu(ucode->boot_size); | |
5364 | ||
5365 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
bc434dd2 IS |
5366 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size); |
5367 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size); | |
5368 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size); | |
5369 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size); | |
5370 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size); | |
b481de9c ZY |
5371 | |
5372 | /* Verify size of file vs. image size info in file's header */ | |
5373 | if (ucode_raw->size < sizeof(*ucode) + | |
5374 | inst_size + data_size + init_size + | |
5375 | init_data_size + boot_size) { | |
5376 | ||
5377 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
5378 | (int)ucode_raw->size); | |
90e759d1 | 5379 | ret = -EINVAL; |
b481de9c ZY |
5380 | goto err_release; |
5381 | } | |
5382 | ||
5383 | /* Verify that uCode images will fit in card's SRAM */ | |
5384 | if (inst_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5385 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
5386 | inst_size); | |
5387 | ret = -EINVAL; | |
b481de9c ZY |
5388 | goto err_release; |
5389 | } | |
5390 | ||
5391 | if (data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5392 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
5393 | data_size); | |
5394 | ret = -EINVAL; | |
b481de9c ZY |
5395 | goto err_release; |
5396 | } | |
5397 | if (init_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5398 | IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n", |
5399 | init_size); | |
5400 | ret = -EINVAL; | |
b481de9c ZY |
5401 | goto err_release; |
5402 | } | |
5403 | if (init_data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5404 | IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n", |
5405 | init_data_size); | |
5406 | ret = -EINVAL; | |
b481de9c ZY |
5407 | goto err_release; |
5408 | } | |
5409 | if (boot_size > IWL_MAX_BSM_SIZE) { | |
90e759d1 TW |
5410 | IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n", |
5411 | boot_size); | |
5412 | ret = -EINVAL; | |
b481de9c ZY |
5413 | goto err_release; |
5414 | } | |
5415 | ||
5416 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
5417 | ||
5418 | /* Runtime instructions and 2 copies of data: | |
5419 | * 1) unmodified from disk | |
5420 | * 2) backup cache for save/restore during power-downs */ | |
5421 | priv->ucode_code.len = inst_size; | |
98c92211 | 5422 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
5423 | |
5424 | priv->ucode_data.len = data_size; | |
98c92211 | 5425 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
5426 | |
5427 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 5428 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 5429 | |
90e759d1 TW |
5430 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
5431 | !priv->ucode_data_backup.v_addr) | |
5432 | goto err_pci_alloc; | |
b481de9c ZY |
5433 | |
5434 | /* Initialization instructions and data */ | |
90e759d1 TW |
5435 | if (init_size && init_data_size) { |
5436 | priv->ucode_init.len = init_size; | |
98c92211 | 5437 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
5438 | |
5439 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 5440 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
5441 | |
5442 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
5443 | goto err_pci_alloc; | |
5444 | } | |
b481de9c ZY |
5445 | |
5446 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
5447 | if (boot_size) { |
5448 | priv->ucode_boot.len = boot_size; | |
98c92211 | 5449 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 5450 | |
90e759d1 TW |
5451 | if (!priv->ucode_boot.v_addr) |
5452 | goto err_pci_alloc; | |
5453 | } | |
b481de9c ZY |
5454 | |
5455 | /* Copy images into buffers for card's bus-master reads ... */ | |
5456 | ||
5457 | /* Runtime instructions (first block of data in file) */ | |
5458 | src = &ucode->data[0]; | |
5459 | len = priv->ucode_code.len; | |
90e759d1 | 5460 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
5461 | memcpy(priv->ucode_code.v_addr, src, len); |
5462 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
5463 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
5464 | ||
5465 | /* Runtime data (2nd block) | |
bb8c093b | 5466 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
b481de9c ZY |
5467 | src = &ucode->data[inst_size]; |
5468 | len = priv->ucode_data.len; | |
90e759d1 | 5469 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
5470 | memcpy(priv->ucode_data.v_addr, src, len); |
5471 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
5472 | ||
5473 | /* Initialization instructions (3rd block) */ | |
5474 | if (init_size) { | |
5475 | src = &ucode->data[inst_size + data_size]; | |
5476 | len = priv->ucode_init.len; | |
90e759d1 TW |
5477 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
5478 | len); | |
b481de9c ZY |
5479 | memcpy(priv->ucode_init.v_addr, src, len); |
5480 | } | |
5481 | ||
5482 | /* Initialization data (4th block) */ | |
5483 | if (init_data_size) { | |
5484 | src = &ucode->data[inst_size + data_size + init_size]; | |
5485 | len = priv->ucode_init_data.len; | |
5486 | IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n", | |
5487 | (int)len); | |
5488 | memcpy(priv->ucode_init_data.v_addr, src, len); | |
5489 | } | |
5490 | ||
5491 | /* Bootstrap instructions (5th block) */ | |
5492 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
5493 | len = priv->ucode_boot.len; | |
5494 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n", | |
5495 | (int)len); | |
5496 | memcpy(priv->ucode_boot.v_addr, src, len); | |
5497 | ||
5498 | /* We have our copies now, allow OS release its copies */ | |
5499 | release_firmware(ucode_raw); | |
5500 | return 0; | |
5501 | ||
5502 | err_pci_alloc: | |
5503 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 5504 | ret = -ENOMEM; |
bb8c093b | 5505 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
5506 | |
5507 | err_release: | |
5508 | release_firmware(ucode_raw); | |
5509 | ||
5510 | error: | |
90e759d1 | 5511 | return ret; |
b481de9c ZY |
5512 | } |
5513 | ||
5514 | ||
5515 | /** | |
bb8c093b | 5516 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
5517 | * |
5518 | * Tell initialization uCode where to find runtime uCode. | |
5519 | * | |
5520 | * BSM registers initially contain pointers to initialization uCode. | |
5521 | * We need to replace them to load runtime uCode inst and data, | |
5522 | * and to save runtime data when powering down. | |
5523 | */ | |
bb8c093b | 5524 | static int iwl3945_set_ucode_ptrs(struct iwl3945_priv *priv) |
b481de9c ZY |
5525 | { |
5526 | dma_addr_t pinst; | |
5527 | dma_addr_t pdata; | |
5528 | int rc = 0; | |
5529 | unsigned long flags; | |
5530 | ||
5531 | /* bits 31:0 for 3945 */ | |
5532 | pinst = priv->ucode_code.p_addr; | |
5533 | pdata = priv->ucode_data_backup.p_addr; | |
5534 | ||
5535 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5536 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5537 | if (rc) { |
5538 | spin_unlock_irqrestore(&priv->lock, flags); | |
5539 | return rc; | |
5540 | } | |
5541 | ||
5542 | /* Tell bootstrap uCode where to find image to load */ | |
bb8c093b CH |
5543 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5544 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5545 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
5546 | priv->ucode_data.len); |
5547 | ||
a96a27f9 | 5548 | /* Inst byte count must be last to set up, bit 31 signals uCode |
b481de9c | 5549 | * that all new ptr/size info is in place */ |
bb8c093b | 5550 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
5551 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
5552 | ||
bb8c093b | 5553 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5554 | |
5555 | spin_unlock_irqrestore(&priv->lock, flags); | |
5556 | ||
5557 | IWL_DEBUG_INFO("Runtime uCode pointers are set.\n"); | |
5558 | ||
5559 | return rc; | |
5560 | } | |
5561 | ||
5562 | /** | |
bb8c093b | 5563 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
5564 | * |
5565 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
5566 | * | |
b481de9c | 5567 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 5568 | */ |
bb8c093b | 5569 | static void iwl3945_init_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5570 | { |
5571 | /* Check alive response for "valid" sign from uCode */ | |
5572 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
5573 | /* We had an error bringing up the hardware, so take it | |
5574 | * all the way back down so we can try again */ | |
5575 | IWL_DEBUG_INFO("Initialize Alive failed.\n"); | |
5576 | goto restart; | |
5577 | } | |
5578 | ||
5579 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
5580 | * This is a paranoid check, because we would not have gotten the | |
5581 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 5582 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5583 | /* Runtime instruction load was bad; |
5584 | * take it all the way back down so we can try again */ | |
5585 | IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n"); | |
5586 | goto restart; | |
5587 | } | |
5588 | ||
5589 | /* Send pointers to protocol/runtime uCode image ... init code will | |
5590 | * load and launch runtime uCode, which will send us another "Alive" | |
5591 | * notification. */ | |
5592 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
bb8c093b | 5593 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
5594 | /* Runtime instruction load won't happen; |
5595 | * take it all the way back down so we can try again */ | |
5596 | IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n"); | |
5597 | goto restart; | |
5598 | } | |
5599 | return; | |
5600 | ||
5601 | restart: | |
5602 | queue_work(priv->workqueue, &priv->restart); | |
5603 | } | |
5604 | ||
5605 | ||
9bdf5eca MA |
5606 | /* temporary */ |
5607 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, | |
5608 | struct sk_buff *skb); | |
5609 | ||
b481de9c | 5610 | /** |
bb8c093b | 5611 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 5612 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 5613 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 5614 | */ |
bb8c093b | 5615 | static void iwl3945_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5616 | { |
5617 | int rc = 0; | |
5618 | int thermal_spin = 0; | |
5619 | u32 rfkill; | |
5620 | ||
5621 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
5622 | ||
5623 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
5624 | /* We had an error bringing up the hardware, so take it | |
5625 | * all the way back down so we can try again */ | |
5626 | IWL_DEBUG_INFO("Alive failed.\n"); | |
5627 | goto restart; | |
5628 | } | |
5629 | ||
5630 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
5631 | * This is a paranoid check, because we would not have gotten the | |
5632 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 5633 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5634 | /* Runtime instruction load was bad; |
5635 | * take it all the way back down so we can try again */ | |
5636 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
5637 | goto restart; | |
5638 | } | |
5639 | ||
bb8c093b | 5640 | iwl3945_clear_stations_table(priv); |
b481de9c | 5641 | |
bb8c093b | 5642 | rc = iwl3945_grab_nic_access(priv); |
b481de9c | 5643 | if (rc) { |
a96a27f9 | 5644 | IWL_WARNING("Can not read RFKILL status from adapter\n"); |
b481de9c ZY |
5645 | return; |
5646 | } | |
5647 | ||
bb8c093b | 5648 | rfkill = iwl3945_read_prph(priv, APMG_RFKILL_REG); |
b481de9c | 5649 | IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill); |
bb8c093b | 5650 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5651 | |
5652 | if (rfkill & 0x1) { | |
5653 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a96a27f9 | 5654 | /* if RFKILL is not on, then wait for thermal |
b481de9c | 5655 | * sensor in adapter to kick in */ |
bb8c093b | 5656 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
5657 | thermal_spin++; |
5658 | udelay(10); | |
5659 | } | |
5660 | ||
5661 | if (thermal_spin) | |
5662 | IWL_DEBUG_INFO("Thermal calibration took %dus\n", | |
5663 | thermal_spin * 10); | |
5664 | } else | |
5665 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5666 | ||
9fbab516 | 5667 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
5668 | set_bit(STATUS_ALIVE, &priv->status); |
5669 | ||
5670 | /* Clear out the uCode error bit if it is set */ | |
5671 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
5672 | ||
bb8c093b | 5673 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
5674 | return; |
5675 | ||
36d6825b | 5676 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
5677 | |
5678 | priv->active_rate = priv->rates_mask; | |
5679 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
5680 | ||
bb8c093b | 5681 | iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode)); |
b481de9c | 5682 | |
bb8c093b CH |
5683 | if (iwl3945_is_associated(priv)) { |
5684 | struct iwl3945_rxon_cmd *active_rxon = | |
5685 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); | |
b481de9c ZY |
5686 | |
5687 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
5688 | sizeof(priv->staging_rxon)); | |
5689 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5690 | } else { | |
5691 | /* Initialize our rx_config data */ | |
60294de3 | 5692 | iwl3945_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
5693 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
5694 | } | |
5695 | ||
9fbab516 | 5696 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 5697 | iwl3945_send_bt_config(priv); |
b481de9c ZY |
5698 | |
5699 | /* Configure the adapter for unassociated operation */ | |
bb8c093b | 5700 | iwl3945_commit_rxon(priv); |
b481de9c | 5701 | |
b481de9c ZY |
5702 | iwl3945_reg_txpower_periodic(priv); |
5703 | ||
fe00b5a5 RC |
5704 | iwl3945_led_register(priv); |
5705 | ||
b481de9c | 5706 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 5707 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 5708 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
5709 | |
5710 | if (priv->error_recovering) | |
bb8c093b | 5711 | iwl3945_error_recovery(priv); |
b481de9c | 5712 | |
9bdf5eca MA |
5713 | /* reassociate for ADHOC mode */ |
5714 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
5715 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
5716 | priv->vif); | |
5717 | if (beacon) | |
5718 | iwl3945_mac_beacon_update(priv->hw, beacon); | |
5719 | } | |
5720 | ||
b481de9c ZY |
5721 | return; |
5722 | ||
5723 | restart: | |
5724 | queue_work(priv->workqueue, &priv->restart); | |
5725 | } | |
5726 | ||
bb8c093b | 5727 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv); |
b481de9c | 5728 | |
bb8c093b | 5729 | static void __iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5730 | { |
5731 | unsigned long flags; | |
5732 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
5733 | struct ieee80211_conf *conf = NULL; | |
5734 | ||
5735 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
5736 | ||
5737 | conf = ieee80211_get_hw_conf(priv->hw); | |
5738 | ||
5739 | if (!exit_pending) | |
5740 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5741 | ||
ab53d8af | 5742 | iwl3945_led_unregister(priv); |
bb8c093b | 5743 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
5744 | |
5745 | /* Unblock any waiting calls */ | |
5746 | wake_up_interruptible_all(&priv->wait_command_queue); | |
5747 | ||
b481de9c ZY |
5748 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
5749 | * exiting the module */ | |
5750 | if (!exit_pending) | |
5751 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
5752 | ||
5753 | /* stop and reset the on-board processor */ | |
bb8c093b | 5754 | iwl3945_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
5755 | |
5756 | /* tell the device to stop sending interrupts */ | |
0359facc | 5757 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 5758 | iwl3945_disable_interrupts(priv); |
0359facc MA |
5759 | spin_unlock_irqrestore(&priv->lock, flags); |
5760 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
5761 | |
5762 | if (priv->mac80211_registered) | |
5763 | ieee80211_stop_queues(priv->hw); | |
5764 | ||
bb8c093b | 5765 | /* If we have not previously called iwl3945_init() then |
b481de9c | 5766 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
bb8c093b | 5767 | if (!iwl3945_is_init(priv)) { |
b481de9c ZY |
5768 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
5769 | STATUS_RF_KILL_HW | | |
5770 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5771 | STATUS_RF_KILL_SW | | |
9788864e RC |
5772 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5773 | STATUS_GEO_CONFIGURED | | |
b481de9c | 5774 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
ebef2008 AK |
5775 | STATUS_IN_SUSPEND | |
5776 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5777 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5778 | goto exit; |
5779 | } | |
5780 | ||
5781 | /* ...otherwise clear out all the status bits but the RF Kill and | |
5782 | * SUSPEND bits and continue taking the NIC down. */ | |
5783 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
5784 | STATUS_RF_KILL_HW | | |
5785 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5786 | STATUS_RF_KILL_SW | | |
9788864e RC |
5787 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5788 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
5789 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
5790 | STATUS_IN_SUSPEND | | |
5791 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
ebef2008 AK |
5792 | STATUS_FW_ERROR | |
5793 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5794 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5795 | |
5796 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5797 | iwl3945_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
5798 | spin_unlock_irqrestore(&priv->lock, flags); |
5799 | ||
bb8c093b CH |
5800 | iwl3945_hw_txq_ctx_stop(priv); |
5801 | iwl3945_hw_rxq_stop(priv); | |
b481de9c ZY |
5802 | |
5803 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
5804 | if (!iwl3945_grab_nic_access(priv)) { |
5805 | iwl3945_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 5806 | APMG_CLK_VAL_DMA_CLK_RQT); |
bb8c093b | 5807 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5808 | } |
5809 | spin_unlock_irqrestore(&priv->lock, flags); | |
5810 | ||
5811 | udelay(5); | |
5812 | ||
bb8c093b CH |
5813 | iwl3945_hw_nic_stop_master(priv); |
5814 | iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); | |
5815 | iwl3945_hw_nic_reset(priv); | |
b481de9c ZY |
5816 | |
5817 | exit: | |
bb8c093b | 5818 | memset(&priv->card_alive, 0, sizeof(struct iwl3945_alive_resp)); |
b481de9c ZY |
5819 | |
5820 | if (priv->ibss_beacon) | |
5821 | dev_kfree_skb(priv->ibss_beacon); | |
5822 | priv->ibss_beacon = NULL; | |
5823 | ||
5824 | /* clear out any free frames */ | |
bb8c093b | 5825 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
5826 | } |
5827 | ||
bb8c093b | 5828 | static void iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5829 | { |
5830 | mutex_lock(&priv->mutex); | |
bb8c093b | 5831 | __iwl3945_down(priv); |
b481de9c | 5832 | mutex_unlock(&priv->mutex); |
b24d22b1 | 5833 | |
bb8c093b | 5834 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
5835 | } |
5836 | ||
5837 | #define MAX_HW_RESTARTS 5 | |
5838 | ||
bb8c093b | 5839 | static int __iwl3945_up(struct iwl3945_priv *priv) |
b481de9c ZY |
5840 | { |
5841 | int rc, i; | |
5842 | ||
5843 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
5844 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
5845 | return -EIO; | |
5846 | } | |
5847 | ||
5848 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
5849 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
5850 | "parameter)\n"); | |
e655b9f0 ZY |
5851 | return -ENODEV; |
5852 | } | |
5853 | ||
e903fbd4 | 5854 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
a96a27f9 | 5855 | IWL_ERROR("ucode not available for device bring up\n"); |
e903fbd4 RC |
5856 | return -EIO; |
5857 | } | |
5858 | ||
e655b9f0 ZY |
5859 | /* If platform's RF_KILL switch is NOT set to KILL */ |
5860 | if (iwl3945_read32(priv, CSR_GP_CNTRL) & | |
5861 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
5862 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
5863 | else { | |
5864 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5865 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
5866 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); | |
5867 | return -ENODEV; | |
5868 | } | |
b481de9c | 5869 | } |
80fcc9e2 | 5870 | |
bb8c093b | 5871 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 5872 | |
bb8c093b | 5873 | rc = iwl3945_hw_nic_init(priv); |
b481de9c ZY |
5874 | if (rc) { |
5875 | IWL_ERROR("Unable to int nic\n"); | |
5876 | return rc; | |
5877 | } | |
5878 | ||
5879 | /* make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
5880 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
5881 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
5882 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
5883 | ||
5884 | /* clear (again), then enable host interrupts */ | |
bb8c093b CH |
5885 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
5886 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
5887 | |
5888 | /* really make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
5889 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
5890 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
5891 | |
5892 | /* Copy original ucode data image from disk into backup cache. | |
5893 | * This will be used to initialize the on-board processor's | |
5894 | * data SRAM for a clean start when the runtime program first loads. */ | |
5895 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 5896 | priv->ucode_data.len); |
b481de9c | 5897 | |
e655b9f0 ZY |
5898 | /* We return success when we resume from suspend and rf_kill is on. */ |
5899 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
5900 | return 0; | |
5901 | ||
b481de9c ZY |
5902 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
5903 | ||
bb8c093b | 5904 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
5905 | |
5906 | /* load bootstrap state machine, | |
5907 | * load bootstrap program into processor's memory, | |
5908 | * prepare to load the "initialize" uCode */ | |
bb8c093b | 5909 | rc = iwl3945_load_bsm(priv); |
b481de9c ZY |
5910 | |
5911 | if (rc) { | |
5912 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc); | |
5913 | continue; | |
5914 | } | |
5915 | ||
5916 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 5917 | iwl3945_nic_start(priv); |
b481de9c | 5918 | |
b481de9c ZY |
5919 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
5920 | ||
5921 | return 0; | |
5922 | } | |
5923 | ||
5924 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 5925 | __iwl3945_down(priv); |
ebef2008 | 5926 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
5927 | |
5928 | /* tried to restart and config the device for as long as our | |
5929 | * patience could withstand */ | |
5930 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
5931 | return -EIO; | |
5932 | } | |
5933 | ||
5934 | ||
5935 | /***************************************************************************** | |
5936 | * | |
5937 | * Workqueue callbacks | |
5938 | * | |
5939 | *****************************************************************************/ | |
5940 | ||
bb8c093b | 5941 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 5942 | { |
bb8c093b CH |
5943 | struct iwl3945_priv *priv = |
5944 | container_of(data, struct iwl3945_priv, init_alive_start.work); | |
b481de9c ZY |
5945 | |
5946 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5947 | return; | |
5948 | ||
5949 | mutex_lock(&priv->mutex); | |
bb8c093b | 5950 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
5951 | mutex_unlock(&priv->mutex); |
5952 | } | |
5953 | ||
bb8c093b | 5954 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 5955 | { |
bb8c093b CH |
5956 | struct iwl3945_priv *priv = |
5957 | container_of(data, struct iwl3945_priv, alive_start.work); | |
b481de9c ZY |
5958 | |
5959 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5960 | return; | |
5961 | ||
5962 | mutex_lock(&priv->mutex); | |
bb8c093b | 5963 | iwl3945_alive_start(priv); |
b481de9c ZY |
5964 | mutex_unlock(&priv->mutex); |
5965 | } | |
5966 | ||
bb8c093b | 5967 | static void iwl3945_bg_rf_kill(struct work_struct *work) |
b481de9c | 5968 | { |
bb8c093b | 5969 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, rf_kill); |
b481de9c ZY |
5970 | |
5971 | wake_up_interruptible(&priv->wait_command_queue); | |
5972 | ||
5973 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5974 | return; | |
5975 | ||
5976 | mutex_lock(&priv->mutex); | |
5977 | ||
bb8c093b | 5978 | if (!iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
5979 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL, |
5980 | "HW and/or SW RF Kill no longer active, restarting " | |
5981 | "device\n"); | |
5982 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5983 | queue_work(priv->workqueue, &priv->restart); | |
5984 | } else { | |
5985 | ||
5986 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
5987 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
5988 | "disabled by SW switch\n"); | |
5989 | else | |
5990 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
5991 | "Kill switch must be turned off for " | |
5992 | "wireless networking to work.\n"); | |
5993 | } | |
ebef2008 | 5994 | |
b481de9c | 5995 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 5996 | iwl3945_rfkill_set_hw_state(priv); |
b481de9c ZY |
5997 | } |
5998 | ||
5999 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) | |
6000 | ||
bb8c093b | 6001 | static void iwl3945_bg_scan_check(struct work_struct *data) |
b481de9c | 6002 | { |
bb8c093b CH |
6003 | struct iwl3945_priv *priv = |
6004 | container_of(data, struct iwl3945_priv, scan_check.work); | |
b481de9c ZY |
6005 | |
6006 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6007 | return; | |
6008 | ||
6009 | mutex_lock(&priv->mutex); | |
6010 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
6011 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6012 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, | |
6013 | "Scan completion watchdog resetting adapter (%dms)\n", | |
6014 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
15e869d8 | 6015 | |
b481de9c | 6016 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 6017 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6018 | } |
6019 | mutex_unlock(&priv->mutex); | |
6020 | } | |
6021 | ||
bb8c093b | 6022 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 6023 | { |
bb8c093b CH |
6024 | struct iwl3945_priv *priv = |
6025 | container_of(data, struct iwl3945_priv, request_scan); | |
6026 | struct iwl3945_host_cmd cmd = { | |
b481de9c | 6027 | .id = REPLY_SCAN_CMD, |
bb8c093b | 6028 | .len = sizeof(struct iwl3945_scan_cmd), |
b481de9c ZY |
6029 | .meta.flags = CMD_SIZE_HUGE, |
6030 | }; | |
6031 | int rc = 0; | |
bb8c093b | 6032 | struct iwl3945_scan_cmd *scan; |
b481de9c | 6033 | struct ieee80211_conf *conf = NULL; |
f9340520 | 6034 | u8 n_probes = 2; |
8318d78a | 6035 | enum ieee80211_band band; |
9387b7ca | 6036 | DECLARE_SSID_BUF(ssid); |
b481de9c ZY |
6037 | |
6038 | conf = ieee80211_get_hw_conf(priv->hw); | |
6039 | ||
6040 | mutex_lock(&priv->mutex); | |
6041 | ||
bb8c093b | 6042 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
6043 | IWL_WARNING("request scan called when driver not ready.\n"); |
6044 | goto done; | |
6045 | } | |
6046 | ||
a96a27f9 | 6047 | /* Make sure the scan wasn't canceled before this queued work |
b481de9c ZY |
6048 | * was given the chance to run... */ |
6049 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
6050 | goto done; | |
6051 | ||
6052 | /* This should never be called or scheduled if there is currently | |
6053 | * a scan active in the hardware. */ | |
6054 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
6055 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
6056 | "Ignoring second request.\n"); | |
6057 | rc = -EIO; | |
6058 | goto done; | |
6059 | } | |
6060 | ||
6061 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
6062 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
6063 | goto done; | |
6064 | } | |
6065 | ||
6066 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6067 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
6068 | goto done; | |
6069 | } | |
6070 | ||
bb8c093b | 6071 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6072 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
6073 | goto done; | |
6074 | } | |
6075 | ||
6076 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6077 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
6078 | goto done; | |
6079 | } | |
6080 | ||
6081 | if (!priv->scan_bands) { | |
6082 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
6083 | goto done; | |
6084 | } | |
6085 | ||
6086 | if (!priv->scan) { | |
bb8c093b | 6087 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + |
b481de9c ZY |
6088 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
6089 | if (!priv->scan) { | |
6090 | rc = -ENOMEM; | |
6091 | goto done; | |
6092 | } | |
6093 | } | |
6094 | scan = priv->scan; | |
bb8c093b | 6095 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
6096 | |
6097 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
6098 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
6099 | ||
bb8c093b | 6100 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
6101 | u16 interval = 0; |
6102 | u32 extra; | |
6103 | u32 suspend_time = 100; | |
6104 | u32 scan_suspend_time = 100; | |
6105 | unsigned long flags; | |
6106 | ||
6107 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
6108 | ||
6109 | spin_lock_irqsave(&priv->lock, flags); | |
6110 | interval = priv->beacon_int; | |
6111 | spin_unlock_irqrestore(&priv->lock, flags); | |
6112 | ||
6113 | scan->suspend_time = 0; | |
15e869d8 | 6114 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
6115 | if (!interval) |
6116 | interval = suspend_time; | |
6117 | /* | |
6118 | * suspend time format: | |
6119 | * 0-19: beacon interval in usec (time before exec.) | |
6120 | * 20-23: 0 | |
6121 | * 24-31: number of beacons (suspend between channels) | |
6122 | */ | |
6123 | ||
6124 | extra = (suspend_time / interval) << 24; | |
6125 | scan_suspend_time = 0xFF0FFFFF & | |
6126 | (extra | ((suspend_time % interval) * 1024)); | |
6127 | ||
6128 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
6129 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
6130 | scan_suspend_time, interval); | |
6131 | } | |
6132 | ||
6133 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
6134 | if (priv->one_direct_scan) { | |
6135 | IWL_DEBUG_SCAN | |
6136 | ("Kicking off one direct scan for '%s'\n", | |
9387b7ca JL |
6137 | print_ssid(ssid, priv->direct_ssid, |
6138 | priv->direct_ssid_len)); | |
b481de9c ZY |
6139 | scan->direct_scan[0].id = WLAN_EID_SSID; |
6140 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
6141 | memcpy(scan->direct_scan[0].ssid, | |
6142 | priv->direct_ssid, priv->direct_ssid_len); | |
f9340520 | 6143 | n_probes++; |
f9340520 | 6144 | } else |
786b4557 | 6145 | IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); |
b481de9c ZY |
6146 | |
6147 | /* We don't build a direct scan probe request; the uCode will do | |
6148 | * that based on the direct_mask added to each channel entry */ | |
6149 | scan->tx_cmd.len = cpu_to_le16( | |
bb8c093b | 6150 | iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data, |
430cfe95 | 6151 | IWL_MAX_SCAN_SIZE - sizeof(*scan))); |
b481de9c ZY |
6152 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
6153 | scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id; | |
6154 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
6155 | ||
6156 | /* flags + rate selection */ | |
6157 | ||
66b5004d | 6158 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
b481de9c ZY |
6159 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
6160 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
6161 | scan->good_CRC_th = 0; | |
8318d78a | 6162 | band = IEEE80211_BAND_2GHZ; |
66b5004d | 6163 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
b481de9c ZY |
6164 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
6165 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 6166 | band = IEEE80211_BAND_5GHZ; |
66b5004d | 6167 | } else { |
b481de9c ZY |
6168 | IWL_WARNING("Invalid scan band count\n"); |
6169 | goto done; | |
6170 | } | |
6171 | ||
6172 | /* select Rx antennas */ | |
6173 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
6174 | ||
05c914fe | 6175 | if (priv->iw_mode == NL80211_IFTYPE_MONITOR) |
b481de9c ZY |
6176 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; |
6177 | ||
f9340520 AK |
6178 | scan->channel_count = |
6179 | iwl3945_get_channels_for_scan(priv, band, 1, /* active */ | |
6180 | n_probes, | |
6181 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c | 6182 | |
14b54336 RC |
6183 | if (scan->channel_count == 0) { |
6184 | IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count); | |
6185 | goto done; | |
6186 | } | |
6187 | ||
b481de9c | 6188 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 6189 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
6190 | cmd.data = scan; |
6191 | scan->len = cpu_to_le16(cmd.len); | |
6192 | ||
6193 | set_bit(STATUS_SCAN_HW, &priv->status); | |
bb8c093b | 6194 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
6195 | if (rc) |
6196 | goto done; | |
6197 | ||
6198 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
6199 | IWL_SCAN_CHECK_WATCHDOG); | |
6200 | ||
6201 | mutex_unlock(&priv->mutex); | |
6202 | return; | |
6203 | ||
6204 | done: | |
2420ebc1 MA |
6205 | /* can not perform scan make sure we clear scanning |
6206 | * bits from status so next scan request can be performed. | |
6207 | * if we dont clear scanning status bit here all next scan | |
6208 | * will fail | |
6209 | */ | |
6210 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
6211 | clear_bit(STATUS_SCANNING, &priv->status); | |
6212 | ||
01ebd063 | 6213 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
6214 | queue_work(priv->workqueue, &priv->scan_completed); |
6215 | mutex_unlock(&priv->mutex); | |
6216 | } | |
6217 | ||
bb8c093b | 6218 | static void iwl3945_bg_up(struct work_struct *data) |
b481de9c | 6219 | { |
bb8c093b | 6220 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, up); |
b481de9c ZY |
6221 | |
6222 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6223 | return; | |
6224 | ||
6225 | mutex_lock(&priv->mutex); | |
bb8c093b | 6226 | __iwl3945_up(priv); |
b481de9c | 6227 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 6228 | iwl3945_rfkill_set_hw_state(priv); |
b481de9c ZY |
6229 | } |
6230 | ||
bb8c093b | 6231 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 6232 | { |
bb8c093b | 6233 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, restart); |
b481de9c ZY |
6234 | |
6235 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6236 | return; | |
6237 | ||
bb8c093b | 6238 | iwl3945_down(priv); |
b481de9c ZY |
6239 | queue_work(priv->workqueue, &priv->up); |
6240 | } | |
6241 | ||
bb8c093b | 6242 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 6243 | { |
bb8c093b CH |
6244 | struct iwl3945_priv *priv = |
6245 | container_of(data, struct iwl3945_priv, rx_replenish); | |
b481de9c ZY |
6246 | |
6247 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6248 | return; | |
6249 | ||
6250 | mutex_lock(&priv->mutex); | |
bb8c093b | 6251 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
6252 | mutex_unlock(&priv->mutex); |
6253 | } | |
6254 | ||
7878a5a4 MA |
6255 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
6256 | ||
cd56d331 | 6257 | static void iwl3945_post_associate(struct iwl3945_priv *priv) |
b481de9c | 6258 | { |
b481de9c ZY |
6259 | int rc = 0; |
6260 | struct ieee80211_conf *conf = NULL; | |
6261 | ||
05c914fe | 6262 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
3ac7f146 | 6263 | IWL_ERROR("%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
6264 | return; |
6265 | } | |
6266 | ||
6267 | ||
e174961c JB |
6268 | IWL_DEBUG_ASSOC("Associated as %d to: %pM\n", |
6269 | priv->assoc_id, priv->active_rxon.bssid_addr); | |
b481de9c ZY |
6270 | |
6271 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6272 | return; | |
6273 | ||
322a9811 | 6274 | if (!priv->vif || !priv->is_open) |
6ef89d0a | 6275 | return; |
322a9811 | 6276 | |
bb8c093b | 6277 | iwl3945_scan_cancel_timeout(priv, 200); |
15e869d8 | 6278 | |
b481de9c ZY |
6279 | conf = ieee80211_get_hw_conf(priv->hw); |
6280 | ||
6281 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6282 | iwl3945_commit_rxon(priv); |
b481de9c | 6283 | |
bb8c093b CH |
6284 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6285 | iwl3945_setup_rxon_timing(priv); | |
6286 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6287 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6288 | if (rc) | |
6289 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6290 | "Attempting to continue.\n"); | |
6291 | ||
6292 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
6293 | ||
6294 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6295 | ||
6296 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
6297 | priv->assoc_id, priv->beacon_int); | |
6298 | ||
6299 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6300 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6301 | else | |
6302 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6303 | ||
6304 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6305 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6306 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
6307 | else | |
6308 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
6309 | ||
05c914fe | 6310 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
6311 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
6312 | ||
6313 | } | |
6314 | ||
bb8c093b | 6315 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6316 | |
6317 | switch (priv->iw_mode) { | |
05c914fe | 6318 | case NL80211_IFTYPE_STATION: |
bb8c093b | 6319 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
6320 | break; |
6321 | ||
05c914fe | 6322 | case NL80211_IFTYPE_ADHOC: |
b481de9c ZY |
6323 | |
6324 | /* clear out the station table */ | |
bb8c093b | 6325 | iwl3945_clear_stations_table(priv); |
b481de9c | 6326 | |
bb8c093b CH |
6327 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); |
6328 | iwl3945_add_station(priv, priv->bssid, 0, 0); | |
b481de9c | 6329 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 6330 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
6331 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
6332 | CMD_ASYNC); | |
bb8c093b CH |
6333 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
6334 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
6335 | |
6336 | break; | |
6337 | ||
6338 | default: | |
6339 | IWL_ERROR("%s Should not be called in %d mode\n", | |
3ac7f146 | 6340 | __func__, priv->iw_mode); |
b481de9c ZY |
6341 | break; |
6342 | } | |
6343 | ||
bb8c093b | 6344 | iwl3945_activate_qos(priv, 0); |
292ae174 | 6345 | |
7878a5a4 MA |
6346 | /* we have just associated, don't start scan too early */ |
6347 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
cd56d331 AK |
6348 | } |
6349 | ||
bb8c093b | 6350 | static void iwl3945_bg_abort_scan(struct work_struct *work) |
b481de9c | 6351 | { |
bb8c093b | 6352 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, abort_scan); |
b481de9c | 6353 | |
bb8c093b | 6354 | if (!iwl3945_is_ready(priv)) |
b481de9c ZY |
6355 | return; |
6356 | ||
6357 | mutex_lock(&priv->mutex); | |
6358 | ||
6359 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 6360 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6361 | |
6362 | mutex_unlock(&priv->mutex); | |
6363 | } | |
6364 | ||
e8975581 | 6365 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed); |
76bb77e0 | 6366 | |
bb8c093b | 6367 | static void iwl3945_bg_scan_completed(struct work_struct *work) |
b481de9c | 6368 | { |
bb8c093b CH |
6369 | struct iwl3945_priv *priv = |
6370 | container_of(work, struct iwl3945_priv, scan_completed); | |
b481de9c ZY |
6371 | |
6372 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n"); | |
6373 | ||
6374 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6375 | return; | |
6376 | ||
a0646470 | 6377 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
e8975581 | 6378 | iwl3945_mac_config(priv->hw, 0); |
76bb77e0 | 6379 | |
b481de9c ZY |
6380 | ieee80211_scan_completed(priv->hw); |
6381 | ||
6382 | /* Since setting the TXPOWER may have been deferred while | |
6383 | * performing the scan, fire one off */ | |
6384 | mutex_lock(&priv->mutex); | |
bb8c093b | 6385 | iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
6386 | mutex_unlock(&priv->mutex); |
6387 | } | |
6388 | ||
6389 | /***************************************************************************** | |
6390 | * | |
6391 | * mac80211 entry point functions | |
6392 | * | |
6393 | *****************************************************************************/ | |
6394 | ||
5a66926a ZY |
6395 | #define UCODE_READY_TIMEOUT (2 * HZ) |
6396 | ||
bb8c093b | 6397 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 6398 | { |
bb8c093b | 6399 | struct iwl3945_priv *priv = hw->priv; |
5a66926a | 6400 | int ret; |
b481de9c ZY |
6401 | |
6402 | IWL_DEBUG_MAC80211("enter\n"); | |
6403 | ||
5a66926a ZY |
6404 | if (pci_enable_device(priv->pci_dev)) { |
6405 | IWL_ERROR("Fail to pci_enable_device\n"); | |
6406 | return -ENODEV; | |
6407 | } | |
6408 | pci_restore_state(priv->pci_dev); | |
6409 | pci_enable_msi(priv->pci_dev); | |
6410 | ||
6411 | ret = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED, | |
6412 | DRV_NAME, priv); | |
6413 | if (ret) { | |
6414 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
6415 | goto out_disable_msi; | |
6416 | } | |
6417 | ||
b481de9c ZY |
6418 | /* we should be verifying the device is ready to be opened */ |
6419 | mutex_lock(&priv->mutex); | |
6420 | ||
5a66926a ZY |
6421 | memset(&priv->staging_rxon, 0, sizeof(struct iwl3945_rxon_cmd)); |
6422 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... | |
6423 | * ucode filename and max sizes are card-specific. */ | |
6424 | ||
6425 | if (!priv->ucode_code.len) { | |
6426 | ret = iwl3945_read_ucode(priv); | |
6427 | if (ret) { | |
6428 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
6429 | mutex_unlock(&priv->mutex); | |
6430 | goto out_release_irq; | |
6431 | } | |
6432 | } | |
b481de9c | 6433 | |
e655b9f0 | 6434 | ret = __iwl3945_up(priv); |
b481de9c ZY |
6435 | |
6436 | mutex_unlock(&priv->mutex); | |
5a66926a | 6437 | |
80fcc9e2 AG |
6438 | iwl3945_rfkill_set_hw_state(priv); |
6439 | ||
e655b9f0 ZY |
6440 | if (ret) |
6441 | goto out_release_irq; | |
6442 | ||
6443 | IWL_DEBUG_INFO("Start UP work.\n"); | |
6444 | ||
6445 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
6446 | return 0; | |
6447 | ||
5a66926a ZY |
6448 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
6449 | * mac80211 will not be run successfully. */ | |
6450 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
6451 | test_bit(STATUS_READY, &priv->status), | |
6452 | UCODE_READY_TIMEOUT); | |
6453 | if (!ret) { | |
6454 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6455 | IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n", | |
6456 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
6457 | ret = -ETIMEDOUT; | |
6458 | goto out_release_irq; | |
6459 | } | |
6460 | } | |
6461 | ||
e655b9f0 | 6462 | priv->is_open = 1; |
b481de9c ZY |
6463 | IWL_DEBUG_MAC80211("leave\n"); |
6464 | return 0; | |
5a66926a ZY |
6465 | |
6466 | out_release_irq: | |
6467 | free_irq(priv->pci_dev->irq, priv); | |
6468 | out_disable_msi: | |
6469 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
6470 | pci_disable_device(priv->pci_dev); |
6471 | priv->is_open = 0; | |
6472 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 6473 | return ret; |
b481de9c ZY |
6474 | } |
6475 | ||
bb8c093b | 6476 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 6477 | { |
bb8c093b | 6478 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6479 | |
6480 | IWL_DEBUG_MAC80211("enter\n"); | |
6ef89d0a | 6481 | |
e655b9f0 ZY |
6482 | if (!priv->is_open) { |
6483 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
6484 | return; | |
6485 | } | |
6486 | ||
b481de9c | 6487 | priv->is_open = 0; |
5a66926a ZY |
6488 | |
6489 | if (iwl3945_is_ready_rf(priv)) { | |
e655b9f0 ZY |
6490 | /* stop mac, cancel any scan request and clear |
6491 | * RXON_FILTER_ASSOC_MSK BIT | |
6492 | */ | |
5a66926a ZY |
6493 | mutex_lock(&priv->mutex); |
6494 | iwl3945_scan_cancel_timeout(priv, 100); | |
fde3571f | 6495 | mutex_unlock(&priv->mutex); |
fde3571f MA |
6496 | } |
6497 | ||
5a66926a ZY |
6498 | iwl3945_down(priv); |
6499 | ||
6500 | flush_workqueue(priv->workqueue); | |
6501 | free_irq(priv->pci_dev->irq, priv); | |
6502 | pci_disable_msi(priv->pci_dev); | |
6503 | pci_save_state(priv->pci_dev); | |
6504 | pci_disable_device(priv->pci_dev); | |
6ef89d0a | 6505 | |
b481de9c | 6506 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6507 | } |
6508 | ||
e039fa4a | 6509 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 6510 | { |
bb8c093b | 6511 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6512 | |
6513 | IWL_DEBUG_MAC80211("enter\n"); | |
6514 | ||
b481de9c | 6515 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 6516 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 6517 | |
e039fa4a | 6518 | if (iwl3945_tx_skb(priv, skb)) |
b481de9c ZY |
6519 | dev_kfree_skb_any(skb); |
6520 | ||
6521 | IWL_DEBUG_MAC80211("leave\n"); | |
6522 | return 0; | |
6523 | } | |
6524 | ||
bb8c093b | 6525 | static int iwl3945_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6526 | struct ieee80211_if_init_conf *conf) |
6527 | { | |
bb8c093b | 6528 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6529 | unsigned long flags; |
6530 | ||
32bfd35d | 6531 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 6532 | |
32bfd35d JB |
6533 | if (priv->vif) { |
6534 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
864792e3 | 6535 | return -EOPNOTSUPP; |
b481de9c ZY |
6536 | } |
6537 | ||
6538 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 6539 | priv->vif = conf->vif; |
60294de3 | 6540 | priv->iw_mode = conf->type; |
b481de9c ZY |
6541 | |
6542 | spin_unlock_irqrestore(&priv->lock, flags); | |
6543 | ||
6544 | mutex_lock(&priv->mutex); | |
864792e3 TW |
6545 | |
6546 | if (conf->mac_addr) { | |
e174961c | 6547 | IWL_DEBUG_MAC80211("Set: %pM\n", conf->mac_addr); |
864792e3 TW |
6548 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
6549 | } | |
6550 | ||
5a66926a ZY |
6551 | if (iwl3945_is_ready(priv)) |
6552 | iwl3945_set_mode(priv, conf->type); | |
b481de9c | 6553 | |
b481de9c ZY |
6554 | mutex_unlock(&priv->mutex); |
6555 | ||
5a66926a | 6556 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6557 | return 0; |
6558 | } | |
6559 | ||
6560 | /** | |
bb8c093b | 6561 | * iwl3945_mac_config - mac80211 config callback |
b481de9c ZY |
6562 | * |
6563 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
6564 | * be set inappropriately and the driver currently sets the hardware up to | |
6565 | * use it whenever needed. | |
6566 | */ | |
e8975581 | 6567 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed) |
b481de9c | 6568 | { |
bb8c093b CH |
6569 | struct iwl3945_priv *priv = hw->priv; |
6570 | const struct iwl3945_channel_info *ch_info; | |
e8975581 | 6571 | struct ieee80211_conf *conf = &hw->conf; |
b481de9c | 6572 | unsigned long flags; |
76bb77e0 | 6573 | int ret = 0; |
b481de9c ZY |
6574 | |
6575 | mutex_lock(&priv->mutex); | |
8318d78a | 6576 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 6577 | |
bb8c093b | 6578 | if (!iwl3945_is_ready(priv)) { |
b481de9c | 6579 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
6580 | ret = -EIO; |
6581 | goto out; | |
b481de9c ZY |
6582 | } |
6583 | ||
bb8c093b | 6584 | if (unlikely(!iwl3945_param_disable_hw_scan && |
b481de9c | 6585 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
6586 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
6587 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 6588 | mutex_unlock(&priv->mutex); |
a0646470 | 6589 | return 0; |
b481de9c ZY |
6590 | } |
6591 | ||
6592 | spin_lock_irqsave(&priv->lock, flags); | |
6593 | ||
8318d78a JB |
6594 | ch_info = iwl3945_get_channel_info(priv, conf->channel->band, |
6595 | conf->channel->hw_value); | |
b481de9c | 6596 | if (!is_channel_valid(ch_info)) { |
66b5004d | 6597 | IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n", |
8318d78a | 6598 | conf->channel->hw_value, conf->channel->band); |
b481de9c ZY |
6599 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
6600 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
6601 | ret = -EINVAL; |
6602 | goto out; | |
b481de9c ZY |
6603 | } |
6604 | ||
8318d78a | 6605 | iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value); |
b481de9c | 6606 | |
8318d78a | 6607 | iwl3945_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
6608 | |
6609 | /* The list of supported rates and rate mask can be different | |
6610 | * for each phymode; since the phymode may have changed, reset | |
6611 | * the rate mask to what mac80211 lists */ | |
bb8c093b | 6612 | iwl3945_set_rate(priv); |
b481de9c ZY |
6613 | |
6614 | spin_unlock_irqrestore(&priv->lock, flags); | |
6615 | ||
6616 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
6617 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 6618 | iwl3945_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 6619 | goto out; |
b481de9c ZY |
6620 | } |
6621 | #endif | |
6622 | ||
bb8c093b | 6623 | iwl3945_radio_kill_sw(priv, !conf->radio_enabled); |
b481de9c ZY |
6624 | |
6625 | if (!conf->radio_enabled) { | |
6626 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 6627 | goto out; |
b481de9c ZY |
6628 | } |
6629 | ||
bb8c093b | 6630 | if (iwl3945_is_rfkill(priv)) { |
b481de9c | 6631 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
6632 | ret = -EIO; |
6633 | goto out; | |
b481de9c ZY |
6634 | } |
6635 | ||
bb8c093b | 6636 | iwl3945_set_rate(priv); |
b481de9c ZY |
6637 | |
6638 | if (memcmp(&priv->active_rxon, | |
6639 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 6640 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6641 | else |
6642 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
6643 | ||
6644 | IWL_DEBUG_MAC80211("leave\n"); | |
6645 | ||
76bb77e0 | 6646 | out: |
a0646470 | 6647 | clear_bit(STATUS_CONF_PENDING, &priv->status); |
b481de9c | 6648 | mutex_unlock(&priv->mutex); |
76bb77e0 | 6649 | return ret; |
b481de9c ZY |
6650 | } |
6651 | ||
bb8c093b | 6652 | static void iwl3945_config_ap(struct iwl3945_priv *priv) |
b481de9c ZY |
6653 | { |
6654 | int rc = 0; | |
6655 | ||
d986bcd1 | 6656 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
6657 | return; |
6658 | ||
6659 | /* The following should be done only at AP bring up */ | |
5d1e2325 | 6660 | if (!(iwl3945_is_associated(priv))) { |
b481de9c ZY |
6661 | |
6662 | /* RXON - unassoc (to set timing command) */ | |
6663 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6664 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6665 | |
6666 | /* RXON Timing */ | |
bb8c093b CH |
6667 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6668 | iwl3945_setup_rxon_timing(priv); | |
6669 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6670 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6671 | if (rc) | |
6672 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6673 | "Attempting to continue.\n"); | |
6674 | ||
6675 | /* FIXME: what should be the assoc_id for AP? */ | |
6676 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6677 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6678 | priv->staging_rxon.flags |= | |
6679 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
6680 | else | |
6681 | priv->staging_rxon.flags &= | |
6682 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6683 | ||
6684 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6685 | if (priv->assoc_capability & | |
6686 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6687 | priv->staging_rxon.flags |= | |
6688 | RXON_FLG_SHORT_SLOT_MSK; | |
6689 | else | |
6690 | priv->staging_rxon.flags &= | |
6691 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6692 | ||
05c914fe | 6693 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
6694 | priv->staging_rxon.flags &= |
6695 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6696 | } | |
6697 | /* restore RXON assoc */ | |
6698 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b CH |
6699 | iwl3945_commit_rxon(priv); |
6700 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); | |
556f8db7 | 6701 | } |
bb8c093b | 6702 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
6703 | |
6704 | /* FIXME - we need to add code here to detect a totally new | |
6705 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
6706 | * clear sta table, add BCAST sta... */ | |
6707 | } | |
6708 | ||
32bfd35d JB |
6709 | static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, |
6710 | struct ieee80211_vif *vif, | |
b481de9c ZY |
6711 | struct ieee80211_if_conf *conf) |
6712 | { | |
bb8c093b | 6713 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6714 | int rc; |
6715 | ||
6716 | if (conf == NULL) | |
6717 | return -EIO; | |
6718 | ||
b716bb91 EG |
6719 | if (priv->vif != vif) { |
6720 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
6721 | return 0; |
6722 | } | |
6723 | ||
9d139c81 | 6724 | /* handle this temporarily here */ |
05c914fe | 6725 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
9d139c81 JB |
6726 | conf->changed & IEEE80211_IFCC_BEACON) { |
6727 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); | |
6728 | if (!beacon) | |
6729 | return -ENOMEM; | |
9bdf5eca | 6730 | mutex_lock(&priv->mutex); |
9d139c81 | 6731 | rc = iwl3945_mac_beacon_update(hw, beacon); |
9bdf5eca | 6732 | mutex_unlock(&priv->mutex); |
9d139c81 JB |
6733 | if (rc) |
6734 | return rc; | |
6735 | } | |
6736 | ||
5a66926a ZY |
6737 | if (!iwl3945_is_alive(priv)) |
6738 | return -EAGAIN; | |
6739 | ||
b481de9c ZY |
6740 | mutex_lock(&priv->mutex); |
6741 | ||
b481de9c | 6742 | if (conf->bssid) |
e174961c | 6743 | IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid); |
b481de9c | 6744 | |
4150c572 JB |
6745 | /* |
6746 | * very dubious code was here; the probe filtering flag is never set: | |
6747 | * | |
b481de9c ZY |
6748 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
6749 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 6750 | */ |
b481de9c | 6751 | |
05c914fe | 6752 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
6753 | if (!conf->bssid) { |
6754 | conf->bssid = priv->mac_addr; | |
6755 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
e174961c JB |
6756 | IWL_DEBUG_MAC80211("bssid was set to: %pM\n", |
6757 | conf->bssid); | |
b481de9c ZY |
6758 | } |
6759 | if (priv->ibss_beacon) | |
6760 | dev_kfree_skb(priv->ibss_beacon); | |
6761 | ||
9d139c81 | 6762 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
b481de9c ZY |
6763 | } |
6764 | ||
fde3571f MA |
6765 | if (iwl3945_is_rfkill(priv)) |
6766 | goto done; | |
6767 | ||
b481de9c ZY |
6768 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
6769 | !is_multicast_ether_addr(conf->bssid)) { | |
6770 | /* If there is currently a HW scan going on in the background | |
6771 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 6772 | if (iwl3945_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
6773 | IWL_WARNING("Aborted scan still in progress " |
6774 | "after 100ms\n"); | |
6775 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
6776 | mutex_unlock(&priv->mutex); | |
6777 | return -EAGAIN; | |
6778 | } | |
6779 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
6780 | ||
6781 | /* TODO: Audit driver for usage of these members and see | |
6782 | * if mac80211 deprecates them (priv->bssid looks like it | |
6783 | * shouldn't be there, but I haven't scanned the IBSS code | |
6784 | * to verify) - jpk */ | |
6785 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
6786 | ||
05c914fe | 6787 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
bb8c093b | 6788 | iwl3945_config_ap(priv); |
b481de9c | 6789 | else { |
bb8c093b | 6790 | rc = iwl3945_commit_rxon(priv); |
05c914fe | 6791 | if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) |
bb8c093b | 6792 | iwl3945_add_station(priv, |
556f8db7 | 6793 | priv->active_rxon.bssid_addr, 1, 0); |
b481de9c ZY |
6794 | } |
6795 | ||
6796 | } else { | |
bb8c093b | 6797 | iwl3945_scan_cancel_timeout(priv, 100); |
b481de9c | 6798 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 6799 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6800 | } |
6801 | ||
fde3571f | 6802 | done: |
b481de9c ZY |
6803 | IWL_DEBUG_MAC80211("leave\n"); |
6804 | mutex_unlock(&priv->mutex); | |
6805 | ||
6806 | return 0; | |
6807 | } | |
6808 | ||
bb8c093b | 6809 | static void iwl3945_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
6810 | unsigned int changed_flags, |
6811 | unsigned int *total_flags, | |
6812 | int mc_count, struct dev_addr_list *mc_list) | |
6813 | { | |
5ec03976 | 6814 | struct iwl3945_priv *priv = hw->priv; |
352bc8de | 6815 | __le32 *filter_flags = &priv->staging_rxon.filter_flags; |
25b3f57c | 6816 | |
352bc8de ZY |
6817 | IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", |
6818 | changed_flags, *total_flags); | |
6819 | ||
6820 | if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) { | |
6821 | if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) | |
6822 | *filter_flags |= RXON_FILTER_PROMISC_MSK; | |
6823 | else | |
6824 | *filter_flags &= ~RXON_FILTER_PROMISC_MSK; | |
6825 | } | |
6826 | if (changed_flags & FIF_ALLMULTI) { | |
6827 | if (*total_flags & FIF_ALLMULTI) | |
6828 | *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK; | |
6829 | else | |
6830 | *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK; | |
6831 | } | |
6832 | if (changed_flags & FIF_CONTROL) { | |
6833 | if (*total_flags & FIF_CONTROL) | |
6834 | *filter_flags |= RXON_FILTER_CTL2HOST_MSK; | |
6835 | else | |
6836 | *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK; | |
5ec03976 | 6837 | } |
352bc8de ZY |
6838 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
6839 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) | |
6840 | *filter_flags |= RXON_FILTER_BCON_AWARE_MSK; | |
6841 | else | |
6842 | *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK; | |
6843 | } | |
6844 | ||
6845 | /* We avoid iwl_commit_rxon here to commit the new filter flags | |
6846 | * since mac80211 will call ieee80211_hw_config immediately. | |
6847 | * (mc_list is not supported at this time). Otherwise, we need to | |
6848 | * queue a background iwl_commit_rxon work. | |
6849 | */ | |
6850 | ||
6851 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
25b3f57c | 6852 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
4150c572 JB |
6853 | } |
6854 | ||
bb8c093b | 6855 | static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6856 | struct ieee80211_if_init_conf *conf) |
6857 | { | |
bb8c093b | 6858 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6859 | |
6860 | IWL_DEBUG_MAC80211("enter\n"); | |
6861 | ||
6862 | mutex_lock(&priv->mutex); | |
6ef89d0a | 6863 | |
fde3571f MA |
6864 | if (iwl3945_is_ready_rf(priv)) { |
6865 | iwl3945_scan_cancel_timeout(priv, 100); | |
fde3571f MA |
6866 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
6867 | iwl3945_commit_rxon(priv); | |
6868 | } | |
32bfd35d JB |
6869 | if (priv->vif == conf->vif) { |
6870 | priv->vif = NULL; | |
b481de9c | 6871 | memset(priv->bssid, 0, ETH_ALEN); |
b481de9c ZY |
6872 | } |
6873 | mutex_unlock(&priv->mutex); | |
6874 | ||
6875 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
6876 | } |
6877 | ||
cd56d331 AK |
6878 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
6879 | ||
6880 | static void iwl3945_bss_info_changed(struct ieee80211_hw *hw, | |
6881 | struct ieee80211_vif *vif, | |
6882 | struct ieee80211_bss_conf *bss_conf, | |
6883 | u32 changes) | |
6884 | { | |
6885 | struct iwl3945_priv *priv = hw->priv; | |
6886 | ||
6887 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); | |
6888 | ||
6889 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { | |
6890 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", | |
6891 | bss_conf->use_short_preamble); | |
6892 | if (bss_conf->use_short_preamble) | |
6893 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6894 | else | |
6895 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6896 | } | |
6897 | ||
6898 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { | |
6899 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); | |
6900 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) | |
6901 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; | |
6902 | else | |
6903 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
6904 | } | |
6905 | ||
6906 | if (changes & BSS_CHANGED_ASSOC) { | |
6907 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); | |
6908 | /* This should never happen as this function should | |
6909 | * never be called from interrupt context. */ | |
6910 | if (WARN_ON_ONCE(in_interrupt())) | |
6911 | return; | |
6912 | if (bss_conf->assoc) { | |
6913 | priv->assoc_id = bss_conf->aid; | |
6914 | priv->beacon_int = bss_conf->beacon_int; | |
6915 | priv->timestamp0 = bss_conf->timestamp & 0xFFFFFFFF; | |
6916 | priv->timestamp1 = (bss_conf->timestamp >> 32) & | |
6917 | 0xFFFFFFFF; | |
6918 | priv->assoc_capability = bss_conf->assoc_capability; | |
6919 | priv->next_scan_jiffies = jiffies + | |
6920 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
6921 | mutex_lock(&priv->mutex); | |
6922 | iwl3945_post_associate(priv); | |
6923 | mutex_unlock(&priv->mutex); | |
6924 | } else { | |
6925 | priv->assoc_id = 0; | |
6926 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
6927 | } | |
6928 | } else if (changes && iwl3945_is_associated(priv) && priv->assoc_id) { | |
6929 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
6930 | iwl3945_send_rxon_assoc(priv); | |
6931 | } | |
6932 | ||
6933 | } | |
6934 | ||
bb8c093b | 6935 | static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
6936 | { |
6937 | int rc = 0; | |
6938 | unsigned long flags; | |
bb8c093b | 6939 | struct iwl3945_priv *priv = hw->priv; |
9387b7ca | 6940 | DECLARE_SSID_BUF(ssid_buf); |
b481de9c ZY |
6941 | |
6942 | IWL_DEBUG_MAC80211("enter\n"); | |
6943 | ||
15e869d8 | 6944 | mutex_lock(&priv->mutex); |
b481de9c ZY |
6945 | spin_lock_irqsave(&priv->lock, flags); |
6946 | ||
bb8c093b | 6947 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
6948 | rc = -EIO; |
6949 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
6950 | goto out_unlock; | |
6951 | } | |
6952 | ||
05c914fe | 6953 | if (priv->iw_mode == NL80211_IFTYPE_AP) { /* APs don't scan */ |
b481de9c ZY |
6954 | rc = -EIO; |
6955 | IWL_ERROR("ERROR: APs don't scan\n"); | |
6956 | goto out_unlock; | |
6957 | } | |
6958 | ||
7878a5a4 MA |
6959 | /* we don't schedule scan within next_scan_jiffies period */ |
6960 | if (priv->next_scan_jiffies && | |
6961 | time_after(priv->next_scan_jiffies, jiffies)) { | |
6962 | rc = -EAGAIN; | |
6963 | goto out_unlock; | |
6964 | } | |
15dbf1b7 BM |
6965 | /* if we just finished scan ask for delay for a broadcast scan */ |
6966 | if ((len == 0) && priv->last_scan_jiffies && | |
6967 | time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, | |
6968 | jiffies)) { | |
b481de9c ZY |
6969 | rc = -EAGAIN; |
6970 | goto out_unlock; | |
6971 | } | |
6972 | if (len) { | |
7878a5a4 | 6973 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
9387b7ca | 6974 | print_ssid(ssid_buf, ssid, len), (int)len); |
b481de9c ZY |
6975 | |
6976 | priv->one_direct_scan = 1; | |
6977 | priv->direct_ssid_len = (u8) | |
6978 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
6979 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
6ef89d0a MA |
6980 | } else |
6981 | priv->one_direct_scan = 0; | |
b481de9c | 6982 | |
bb8c093b | 6983 | rc = iwl3945_scan_initiate(priv); |
b481de9c ZY |
6984 | |
6985 | IWL_DEBUG_MAC80211("leave\n"); | |
6986 | ||
6987 | out_unlock: | |
6988 | spin_unlock_irqrestore(&priv->lock, flags); | |
15e869d8 | 6989 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
6990 | |
6991 | return rc; | |
6992 | } | |
6993 | ||
bb8c093b | 6994 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
6995 | const u8 *local_addr, const u8 *addr, |
6996 | struct ieee80211_key_conf *key) | |
6997 | { | |
bb8c093b | 6998 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6999 | int rc = 0; |
7000 | u8 sta_id; | |
7001 | ||
7002 | IWL_DEBUG_MAC80211("enter\n"); | |
7003 | ||
bb8c093b | 7004 | if (!iwl3945_param_hwcrypto) { |
b481de9c ZY |
7005 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
7006 | return -EOPNOTSUPP; | |
7007 | } | |
7008 | ||
7009 | if (is_zero_ether_addr(addr)) | |
7010 | /* only support pairwise keys */ | |
7011 | return -EOPNOTSUPP; | |
7012 | ||
bb8c093b | 7013 | sta_id = iwl3945_hw_find_station(priv, addr); |
b481de9c | 7014 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
7015 | IWL_DEBUG_MAC80211("leave - %pM not in station map.\n", |
7016 | addr); | |
b481de9c ZY |
7017 | return -EINVAL; |
7018 | } | |
7019 | ||
7020 | mutex_lock(&priv->mutex); | |
7021 | ||
bb8c093b | 7022 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7023 | |
b481de9c ZY |
7024 | switch (cmd) { |
7025 | case SET_KEY: | |
bb8c093b | 7026 | rc = iwl3945_update_sta_key_info(priv, key, sta_id); |
b481de9c | 7027 | if (!rc) { |
bb8c093b CH |
7028 | iwl3945_set_rxon_hwcrypto(priv, 1); |
7029 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7030 | key->hw_key_idx = sta_id; |
7031 | IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n"); | |
7032 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
7033 | } | |
7034 | break; | |
7035 | case DISABLE_KEY: | |
bb8c093b | 7036 | rc = iwl3945_clear_sta_key_info(priv, sta_id); |
b481de9c | 7037 | if (!rc) { |
bb8c093b CH |
7038 | iwl3945_set_rxon_hwcrypto(priv, 0); |
7039 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7040 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); |
7041 | } | |
7042 | break; | |
7043 | default: | |
7044 | rc = -EINVAL; | |
7045 | } | |
7046 | ||
7047 | IWL_DEBUG_MAC80211("leave\n"); | |
7048 | mutex_unlock(&priv->mutex); | |
7049 | ||
7050 | return rc; | |
7051 | } | |
7052 | ||
e100bb64 | 7053 | static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
7054 | const struct ieee80211_tx_queue_params *params) |
7055 | { | |
bb8c093b | 7056 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7057 | unsigned long flags; |
7058 | int q; | |
b481de9c ZY |
7059 | |
7060 | IWL_DEBUG_MAC80211("enter\n"); | |
7061 | ||
bb8c093b | 7062 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7063 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7064 | return -EIO; | |
7065 | } | |
7066 | ||
7067 | if (queue >= AC_NUM) { | |
7068 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
7069 | return 0; | |
7070 | } | |
7071 | ||
b481de9c ZY |
7072 | if (!priv->qos_data.qos_enable) { |
7073 | priv->qos_data.qos_active = 0; | |
7074 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
7075 | return 0; | |
7076 | } | |
7077 | q = AC_NUM - 1 - queue; | |
7078 | ||
7079 | spin_lock_irqsave(&priv->lock, flags); | |
7080 | ||
7081 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
7082 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
7083 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
7084 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 7085 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
7086 | |
7087 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
7088 | priv->qos_data.qos_active = 1; | |
7089 | ||
7090 | spin_unlock_irqrestore(&priv->lock, flags); | |
7091 | ||
7092 | mutex_lock(&priv->mutex); | |
05c914fe | 7093 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
bb8c093b CH |
7094 | iwl3945_activate_qos(priv, 1); |
7095 | else if (priv->assoc_id && iwl3945_is_associated(priv)) | |
7096 | iwl3945_activate_qos(priv, 0); | |
b481de9c ZY |
7097 | |
7098 | mutex_unlock(&priv->mutex); | |
7099 | ||
b481de9c ZY |
7100 | IWL_DEBUG_MAC80211("leave\n"); |
7101 | return 0; | |
7102 | } | |
7103 | ||
bb8c093b | 7104 | static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7105 | struct ieee80211_tx_queue_stats *stats) |
7106 | { | |
bb8c093b | 7107 | struct iwl3945_priv *priv = hw->priv; |
b481de9c | 7108 | int i, avail; |
bb8c093b CH |
7109 | struct iwl3945_tx_queue *txq; |
7110 | struct iwl3945_queue *q; | |
b481de9c ZY |
7111 | unsigned long flags; |
7112 | ||
7113 | IWL_DEBUG_MAC80211("enter\n"); | |
7114 | ||
bb8c093b | 7115 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7116 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7117 | return -EIO; | |
7118 | } | |
7119 | ||
7120 | spin_lock_irqsave(&priv->lock, flags); | |
7121 | ||
7122 | for (i = 0; i < AC_NUM; i++) { | |
7123 | txq = &priv->txq[i]; | |
7124 | q = &txq->q; | |
bb8c093b | 7125 | avail = iwl3945_queue_space(q); |
b481de9c | 7126 | |
57ffc589 JB |
7127 | stats[i].len = q->n_window - avail; |
7128 | stats[i].limit = q->n_window - q->high_mark; | |
7129 | stats[i].count = q->n_window; | |
b481de9c ZY |
7130 | |
7131 | } | |
7132 | spin_unlock_irqrestore(&priv->lock, flags); | |
7133 | ||
7134 | IWL_DEBUG_MAC80211("leave\n"); | |
7135 | ||
7136 | return 0; | |
7137 | } | |
7138 | ||
bb8c093b | 7139 | static int iwl3945_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7140 | struct ieee80211_low_level_stats *stats) |
7141 | { | |
7142 | IWL_DEBUG_MAC80211("enter\n"); | |
7143 | IWL_DEBUG_MAC80211("leave\n"); | |
7144 | ||
7145 | return 0; | |
7146 | } | |
7147 | ||
bb8c093b | 7148 | static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 7149 | { |
bb8c093b | 7150 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7151 | unsigned long flags; |
7152 | ||
7153 | mutex_lock(&priv->mutex); | |
7154 | IWL_DEBUG_MAC80211("enter\n"); | |
7155 | ||
bb8c093b | 7156 | iwl3945_reset_qos(priv); |
292ae174 | 7157 | |
b481de9c ZY |
7158 | spin_lock_irqsave(&priv->lock, flags); |
7159 | priv->assoc_id = 0; | |
7160 | priv->assoc_capability = 0; | |
7161 | priv->call_post_assoc_from_beacon = 0; | |
7162 | ||
7163 | /* new association get rid of ibss beacon skb */ | |
7164 | if (priv->ibss_beacon) | |
7165 | dev_kfree_skb(priv->ibss_beacon); | |
7166 | ||
7167 | priv->ibss_beacon = NULL; | |
7168 | ||
7169 | priv->beacon_int = priv->hw->conf.beacon_int; | |
7170 | priv->timestamp1 = 0; | |
7171 | priv->timestamp0 = 0; | |
05c914fe | 7172 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
b481de9c ZY |
7173 | priv->beacon_int = 0; |
7174 | ||
7175 | spin_unlock_irqrestore(&priv->lock, flags); | |
7176 | ||
fde3571f MA |
7177 | if (!iwl3945_is_ready_rf(priv)) { |
7178 | IWL_DEBUG_MAC80211("leave - not ready\n"); | |
7179 | mutex_unlock(&priv->mutex); | |
7180 | return; | |
7181 | } | |
7182 | ||
15e869d8 MA |
7183 | /* we are restarting association process |
7184 | * clear RXON_FILTER_ASSOC_MSK bit | |
7185 | */ | |
05c914fe | 7186 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
bb8c093b | 7187 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7188 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 7189 | iwl3945_commit_rxon(priv); |
15e869d8 MA |
7190 | } |
7191 | ||
b481de9c | 7192 | /* Per mac80211.h: This is only used in IBSS mode... */ |
05c914fe | 7193 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
15e869d8 | 7194 | |
b481de9c ZY |
7195 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
7196 | mutex_unlock(&priv->mutex); | |
7197 | return; | |
b481de9c ZY |
7198 | } |
7199 | ||
bb8c093b | 7200 | iwl3945_set_rate(priv); |
b481de9c ZY |
7201 | |
7202 | mutex_unlock(&priv->mutex); | |
7203 | ||
7204 | IWL_DEBUG_MAC80211("leave\n"); | |
7205 | ||
7206 | } | |
7207 | ||
e039fa4a | 7208 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 7209 | { |
bb8c093b | 7210 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7211 | unsigned long flags; |
7212 | ||
b481de9c ZY |
7213 | IWL_DEBUG_MAC80211("enter\n"); |
7214 | ||
bb8c093b | 7215 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c | 7216 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
b481de9c ZY |
7217 | return -EIO; |
7218 | } | |
7219 | ||
05c914fe | 7220 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
b481de9c | 7221 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); |
b481de9c ZY |
7222 | return -EIO; |
7223 | } | |
7224 | ||
7225 | spin_lock_irqsave(&priv->lock, flags); | |
7226 | ||
7227 | if (priv->ibss_beacon) | |
7228 | dev_kfree_skb(priv->ibss_beacon); | |
7229 | ||
7230 | priv->ibss_beacon = skb; | |
7231 | ||
7232 | priv->assoc_id = 0; | |
7233 | ||
7234 | IWL_DEBUG_MAC80211("leave\n"); | |
7235 | spin_unlock_irqrestore(&priv->lock, flags); | |
7236 | ||
bb8c093b | 7237 | iwl3945_reset_qos(priv); |
b481de9c | 7238 | |
dc4b1e7d | 7239 | iwl3945_post_associate(priv); |
b481de9c | 7240 | |
b481de9c ZY |
7241 | |
7242 | return 0; | |
7243 | } | |
7244 | ||
7245 | /***************************************************************************** | |
7246 | * | |
7247 | * sysfs attributes | |
7248 | * | |
7249 | *****************************************************************************/ | |
7250 | ||
c8b0e6e1 | 7251 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
7252 | |
7253 | /* | |
7254 | * The following adds a new attribute to the sysfs representation | |
7255 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
7256 | * used for controlling the debug level. | |
7257 | * | |
7258 | * See the level definitions in iwl for details. | |
7259 | */ | |
7260 | ||
7261 | static ssize_t show_debug_level(struct device_driver *d, char *buf) | |
7262 | { | |
bb8c093b | 7263 | return sprintf(buf, "0x%08X\n", iwl3945_debug_level); |
b481de9c ZY |
7264 | } |
7265 | static ssize_t store_debug_level(struct device_driver *d, | |
7266 | const char *buf, size_t count) | |
7267 | { | |
7268 | char *p = (char *)buf; | |
7269 | u32 val; | |
7270 | ||
7271 | val = simple_strtoul(p, &p, 0); | |
7272 | if (p == buf) | |
7273 | printk(KERN_INFO DRV_NAME | |
7274 | ": %s is not in hex or decimal form.\n", buf); | |
7275 | else | |
bb8c093b | 7276 | iwl3945_debug_level = val; |
b481de9c ZY |
7277 | |
7278 | return strnlen(buf, count); | |
7279 | } | |
7280 | ||
7281 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
7282 | show_debug_level, store_debug_level); | |
7283 | ||
c8b0e6e1 | 7284 | #endif /* CONFIG_IWL3945_DEBUG */ |
b481de9c | 7285 | |
b481de9c ZY |
7286 | static ssize_t show_temperature(struct device *d, |
7287 | struct device_attribute *attr, char *buf) | |
7288 | { | |
bb8c093b | 7289 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c | 7290 | |
bb8c093b | 7291 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7292 | return -EAGAIN; |
7293 | ||
bb8c093b | 7294 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
7295 | } |
7296 | ||
7297 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
7298 | ||
b481de9c ZY |
7299 | static ssize_t show_tx_power(struct device *d, |
7300 | struct device_attribute *attr, char *buf) | |
7301 | { | |
bb8c093b | 7302 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7303 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
7304 | } | |
7305 | ||
7306 | static ssize_t store_tx_power(struct device *d, | |
7307 | struct device_attribute *attr, | |
7308 | const char *buf, size_t count) | |
7309 | { | |
bb8c093b | 7310 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7311 | char *p = (char *)buf; |
7312 | u32 val; | |
7313 | ||
7314 | val = simple_strtoul(p, &p, 10); | |
7315 | if (p == buf) | |
7316 | printk(KERN_INFO DRV_NAME | |
7317 | ": %s is not in decimal form.\n", buf); | |
7318 | else | |
bb8c093b | 7319 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
7320 | |
7321 | return count; | |
7322 | } | |
7323 | ||
7324 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
7325 | ||
7326 | static ssize_t show_flags(struct device *d, | |
7327 | struct device_attribute *attr, char *buf) | |
7328 | { | |
bb8c093b | 7329 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7330 | |
7331 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
7332 | } | |
7333 | ||
7334 | static ssize_t store_flags(struct device *d, | |
7335 | struct device_attribute *attr, | |
7336 | const char *buf, size_t count) | |
7337 | { | |
bb8c093b | 7338 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7339 | u32 flags = simple_strtoul(buf, NULL, 0); |
7340 | ||
7341 | mutex_lock(&priv->mutex); | |
7342 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
7343 | /* Cancel any currently running scans... */ | |
bb8c093b | 7344 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7345 | IWL_WARNING("Could not cancel scan.\n"); |
7346 | else { | |
7347 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
7348 | flags); | |
7349 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 7350 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7351 | } |
7352 | } | |
7353 | mutex_unlock(&priv->mutex); | |
7354 | ||
7355 | return count; | |
7356 | } | |
7357 | ||
7358 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
7359 | ||
7360 | static ssize_t show_filter_flags(struct device *d, | |
7361 | struct device_attribute *attr, char *buf) | |
7362 | { | |
bb8c093b | 7363 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7364 | |
7365 | return sprintf(buf, "0x%04X\n", | |
7366 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
7367 | } | |
7368 | ||
7369 | static ssize_t store_filter_flags(struct device *d, | |
7370 | struct device_attribute *attr, | |
7371 | const char *buf, size_t count) | |
7372 | { | |
bb8c093b | 7373 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7374 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
7375 | ||
7376 | mutex_lock(&priv->mutex); | |
7377 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
7378 | /* Cancel any currently running scans... */ | |
bb8c093b | 7379 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7380 | IWL_WARNING("Could not cancel scan.\n"); |
7381 | else { | |
7382 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
7383 | "0x%04X\n", filter_flags); | |
7384 | priv->staging_rxon.filter_flags = | |
7385 | cpu_to_le32(filter_flags); | |
bb8c093b | 7386 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7387 | } |
7388 | } | |
7389 | mutex_unlock(&priv->mutex); | |
7390 | ||
7391 | return count; | |
7392 | } | |
7393 | ||
7394 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
7395 | store_filter_flags); | |
7396 | ||
c8b0e6e1 | 7397 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7398 | |
7399 | static ssize_t show_measurement(struct device *d, | |
7400 | struct device_attribute *attr, char *buf) | |
7401 | { | |
bb8c093b CH |
7402 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7403 | struct iwl3945_spectrum_notification measure_report; | |
b481de9c | 7404 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
3ac7f146 | 7405 | u8 *data = (u8 *)&measure_report; |
b481de9c ZY |
7406 | unsigned long flags; |
7407 | ||
7408 | spin_lock_irqsave(&priv->lock, flags); | |
7409 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
7410 | spin_unlock_irqrestore(&priv->lock, flags); | |
7411 | return 0; | |
7412 | } | |
7413 | memcpy(&measure_report, &priv->measure_report, size); | |
7414 | priv->measurement_status = 0; | |
7415 | spin_unlock_irqrestore(&priv->lock, flags); | |
7416 | ||
7417 | while (size && (PAGE_SIZE - len)) { | |
7418 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7419 | PAGE_SIZE - len, 1); | |
7420 | len = strlen(buf); | |
7421 | if (PAGE_SIZE - len) | |
7422 | buf[len++] = '\n'; | |
7423 | ||
7424 | ofs += 16; | |
7425 | size -= min(size, 16U); | |
7426 | } | |
7427 | ||
7428 | return len; | |
7429 | } | |
7430 | ||
7431 | static ssize_t store_measurement(struct device *d, | |
7432 | struct device_attribute *attr, | |
7433 | const char *buf, size_t count) | |
7434 | { | |
bb8c093b | 7435 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7436 | struct ieee80211_measurement_params params = { |
7437 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
7438 | .start_time = cpu_to_le64(priv->last_tsf), | |
7439 | .duration = cpu_to_le16(1), | |
7440 | }; | |
7441 | u8 type = IWL_MEASURE_BASIC; | |
7442 | u8 buffer[32]; | |
7443 | u8 channel; | |
7444 | ||
7445 | if (count) { | |
7446 | char *p = buffer; | |
7447 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
7448 | channel = simple_strtoul(p, NULL, 0); | |
7449 | if (channel) | |
7450 | params.channel = channel; | |
7451 | ||
7452 | p = buffer; | |
7453 | while (*p && *p != ' ') | |
7454 | p++; | |
7455 | if (*p) | |
7456 | type = simple_strtoul(p + 1, NULL, 0); | |
7457 | } | |
7458 | ||
7459 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
7460 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 7461 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
7462 | |
7463 | return count; | |
7464 | } | |
7465 | ||
7466 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
7467 | show_measurement, store_measurement); | |
c8b0e6e1 | 7468 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
b481de9c | 7469 | |
b481de9c ZY |
7470 | static ssize_t store_retry_rate(struct device *d, |
7471 | struct device_attribute *attr, | |
7472 | const char *buf, size_t count) | |
7473 | { | |
bb8c093b | 7474 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7475 | |
7476 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
7477 | if (priv->retry_rate <= 0) | |
7478 | priv->retry_rate = 1; | |
7479 | ||
7480 | return count; | |
7481 | } | |
7482 | ||
7483 | static ssize_t show_retry_rate(struct device *d, | |
7484 | struct device_attribute *attr, char *buf) | |
7485 | { | |
bb8c093b | 7486 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7487 | return sprintf(buf, "%d", priv->retry_rate); |
7488 | } | |
7489 | ||
7490 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
7491 | store_retry_rate); | |
7492 | ||
7493 | static ssize_t store_power_level(struct device *d, | |
7494 | struct device_attribute *attr, | |
7495 | const char *buf, size_t count) | |
7496 | { | |
bb8c093b | 7497 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7498 | int rc; |
7499 | int mode; | |
7500 | ||
7501 | mode = simple_strtoul(buf, NULL, 0); | |
7502 | mutex_lock(&priv->mutex); | |
7503 | ||
bb8c093b | 7504 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
7505 | rc = -EAGAIN; |
7506 | goto out; | |
7507 | } | |
7508 | ||
7509 | if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC)) | |
7510 | mode = IWL_POWER_AC; | |
7511 | else | |
7512 | mode |= IWL_POWER_ENABLED; | |
7513 | ||
7514 | if (mode != priv->power_mode) { | |
bb8c093b | 7515 | rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode)); |
b481de9c ZY |
7516 | if (rc) { |
7517 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
7518 | goto out; | |
7519 | } | |
7520 | priv->power_mode = mode; | |
7521 | } | |
7522 | ||
7523 | rc = count; | |
7524 | ||
7525 | out: | |
7526 | mutex_unlock(&priv->mutex); | |
7527 | return rc; | |
7528 | } | |
7529 | ||
7530 | #define MAX_WX_STRING 80 | |
7531 | ||
7532 | /* Values are in microsecond */ | |
7533 | static const s32 timeout_duration[] = { | |
7534 | 350000, | |
7535 | 250000, | |
7536 | 75000, | |
7537 | 37000, | |
7538 | 25000, | |
7539 | }; | |
7540 | static const s32 period_duration[] = { | |
7541 | 400000, | |
7542 | 700000, | |
7543 | 1000000, | |
7544 | 1000000, | |
7545 | 1000000 | |
7546 | }; | |
7547 | ||
7548 | static ssize_t show_power_level(struct device *d, | |
7549 | struct device_attribute *attr, char *buf) | |
7550 | { | |
bb8c093b | 7551 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7552 | int level = IWL_POWER_LEVEL(priv->power_mode); |
7553 | char *p = buf; | |
7554 | ||
7555 | p += sprintf(p, "%d ", level); | |
7556 | switch (level) { | |
7557 | case IWL_POWER_MODE_CAM: | |
7558 | case IWL_POWER_AC: | |
7559 | p += sprintf(p, "(AC)"); | |
7560 | break; | |
7561 | case IWL_POWER_BATTERY: | |
7562 | p += sprintf(p, "(BATTERY)"); | |
7563 | break; | |
7564 | default: | |
7565 | p += sprintf(p, | |
7566 | "(Timeout %dms, Period %dms)", | |
7567 | timeout_duration[level - 1] / 1000, | |
7568 | period_duration[level - 1] / 1000); | |
7569 | } | |
7570 | ||
7571 | if (!(priv->power_mode & IWL_POWER_ENABLED)) | |
7572 | p += sprintf(p, " OFF\n"); | |
7573 | else | |
7574 | p += sprintf(p, " \n"); | |
7575 | ||
3ac7f146 | 7576 | return p - buf + 1; |
b481de9c ZY |
7577 | |
7578 | } | |
7579 | ||
7580 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
7581 | store_power_level); | |
7582 | ||
7583 | static ssize_t show_channels(struct device *d, | |
7584 | struct device_attribute *attr, char *buf) | |
7585 | { | |
8318d78a JB |
7586 | /* all this shit doesn't belong into sysfs anyway */ |
7587 | return 0; | |
b481de9c ZY |
7588 | } |
7589 | ||
7590 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
7591 | ||
7592 | static ssize_t show_statistics(struct device *d, | |
7593 | struct device_attribute *attr, char *buf) | |
7594 | { | |
bb8c093b CH |
7595 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7596 | u32 size = sizeof(struct iwl3945_notif_statistics); | |
b481de9c | 7597 | u32 len = 0, ofs = 0; |
3ac7f146 | 7598 | u8 *data = (u8 *)&priv->statistics; |
b481de9c ZY |
7599 | int rc = 0; |
7600 | ||
bb8c093b | 7601 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7602 | return -EAGAIN; |
7603 | ||
7604 | mutex_lock(&priv->mutex); | |
bb8c093b | 7605 | rc = iwl3945_send_statistics_request(priv); |
b481de9c ZY |
7606 | mutex_unlock(&priv->mutex); |
7607 | ||
7608 | if (rc) { | |
7609 | len = sprintf(buf, | |
7610 | "Error sending statistics request: 0x%08X\n", rc); | |
7611 | return len; | |
7612 | } | |
7613 | ||
7614 | while (size && (PAGE_SIZE - len)) { | |
7615 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7616 | PAGE_SIZE - len, 1); | |
7617 | len = strlen(buf); | |
7618 | if (PAGE_SIZE - len) | |
7619 | buf[len++] = '\n'; | |
7620 | ||
7621 | ofs += 16; | |
7622 | size -= min(size, 16U); | |
7623 | } | |
7624 | ||
7625 | return len; | |
7626 | } | |
7627 | ||
7628 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
7629 | ||
7630 | static ssize_t show_antenna(struct device *d, | |
7631 | struct device_attribute *attr, char *buf) | |
7632 | { | |
bb8c093b | 7633 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c | 7634 | |
bb8c093b | 7635 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7636 | return -EAGAIN; |
7637 | ||
7638 | return sprintf(buf, "%d\n", priv->antenna); | |
7639 | } | |
7640 | ||
7641 | static ssize_t store_antenna(struct device *d, | |
7642 | struct device_attribute *attr, | |
7643 | const char *buf, size_t count) | |
7644 | { | |
7645 | int ant; | |
bb8c093b | 7646 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7647 | |
7648 | if (count == 0) | |
7649 | return 0; | |
7650 | ||
7651 | if (sscanf(buf, "%1i", &ant) != 1) { | |
7652 | IWL_DEBUG_INFO("not in hex or decimal form.\n"); | |
7653 | return count; | |
7654 | } | |
7655 | ||
7656 | if ((ant >= 0) && (ant <= 2)) { | |
7657 | IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant); | |
bb8c093b | 7658 | priv->antenna = (enum iwl3945_antenna)ant; |
b481de9c ZY |
7659 | } else |
7660 | IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant); | |
7661 | ||
7662 | ||
7663 | return count; | |
7664 | } | |
7665 | ||
7666 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
7667 | ||
7668 | static ssize_t show_status(struct device *d, | |
7669 | struct device_attribute *attr, char *buf) | |
7670 | { | |
bb8c093b CH |
7671 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
7672 | if (!iwl3945_is_alive(priv)) | |
b481de9c ZY |
7673 | return -EAGAIN; |
7674 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
7675 | } | |
7676 | ||
7677 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
7678 | ||
7679 | static ssize_t dump_error_log(struct device *d, | |
7680 | struct device_attribute *attr, | |
7681 | const char *buf, size_t count) | |
7682 | { | |
7683 | char *p = (char *)buf; | |
7684 | ||
7685 | if (p[0] == '1') | |
bb8c093b | 7686 | iwl3945_dump_nic_error_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7687 | |
7688 | return strnlen(buf, count); | |
7689 | } | |
7690 | ||
7691 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
7692 | ||
7693 | static ssize_t dump_event_log(struct device *d, | |
7694 | struct device_attribute *attr, | |
7695 | const char *buf, size_t count) | |
7696 | { | |
7697 | char *p = (char *)buf; | |
7698 | ||
7699 | if (p[0] == '1') | |
bb8c093b | 7700 | iwl3945_dump_nic_event_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7701 | |
7702 | return strnlen(buf, count); | |
7703 | } | |
7704 | ||
7705 | static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); | |
7706 | ||
7707 | /***************************************************************************** | |
7708 | * | |
a96a27f9 | 7709 | * driver setup and tear down |
b481de9c ZY |
7710 | * |
7711 | *****************************************************************************/ | |
7712 | ||
bb8c093b | 7713 | static void iwl3945_setup_deferred_work(struct iwl3945_priv *priv) |
b481de9c ZY |
7714 | { |
7715 | priv->workqueue = create_workqueue(DRV_NAME); | |
7716 | ||
7717 | init_waitqueue_head(&priv->wait_command_queue); | |
7718 | ||
bb8c093b CH |
7719 | INIT_WORK(&priv->up, iwl3945_bg_up); |
7720 | INIT_WORK(&priv->restart, iwl3945_bg_restart); | |
7721 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
7722 | INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed); | |
7723 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
7724 | INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan); | |
7725 | INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill); | |
7726 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); | |
bb8c093b CH |
7727 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); |
7728 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
7729 | INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check); | |
7730 | ||
7731 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
7732 | |
7733 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 7734 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
7735 | } |
7736 | ||
bb8c093b | 7737 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv) |
b481de9c | 7738 | { |
bb8c093b | 7739 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 7740 | |
e47eb6ad | 7741 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
7742 | cancel_delayed_work(&priv->scan_check); |
7743 | cancel_delayed_work(&priv->alive_start); | |
b481de9c ZY |
7744 | cancel_work_sync(&priv->beacon_update); |
7745 | } | |
7746 | ||
bb8c093b | 7747 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
7748 | &dev_attr_antenna.attr, |
7749 | &dev_attr_channels.attr, | |
7750 | &dev_attr_dump_errors.attr, | |
7751 | &dev_attr_dump_events.attr, | |
7752 | &dev_attr_flags.attr, | |
7753 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 7754 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7755 | &dev_attr_measurement.attr, |
7756 | #endif | |
7757 | &dev_attr_power_level.attr, | |
b481de9c | 7758 | &dev_attr_retry_rate.attr, |
b481de9c ZY |
7759 | &dev_attr_statistics.attr, |
7760 | &dev_attr_status.attr, | |
7761 | &dev_attr_temperature.attr, | |
b481de9c ZY |
7762 | &dev_attr_tx_power.attr, |
7763 | ||
7764 | NULL | |
7765 | }; | |
7766 | ||
bb8c093b | 7767 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 7768 | .name = NULL, /* put in device directory */ |
bb8c093b | 7769 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
7770 | }; |
7771 | ||
bb8c093b CH |
7772 | static struct ieee80211_ops iwl3945_hw_ops = { |
7773 | .tx = iwl3945_mac_tx, | |
7774 | .start = iwl3945_mac_start, | |
7775 | .stop = iwl3945_mac_stop, | |
7776 | .add_interface = iwl3945_mac_add_interface, | |
7777 | .remove_interface = iwl3945_mac_remove_interface, | |
7778 | .config = iwl3945_mac_config, | |
7779 | .config_interface = iwl3945_mac_config_interface, | |
7780 | .configure_filter = iwl3945_configure_filter, | |
7781 | .set_key = iwl3945_mac_set_key, | |
7782 | .get_stats = iwl3945_mac_get_stats, | |
7783 | .get_tx_stats = iwl3945_mac_get_tx_stats, | |
7784 | .conf_tx = iwl3945_mac_conf_tx, | |
bb8c093b | 7785 | .reset_tsf = iwl3945_mac_reset_tsf, |
cd56d331 | 7786 | .bss_info_changed = iwl3945_bss_info_changed, |
bb8c093b | 7787 | .hw_scan = iwl3945_mac_hw_scan |
b481de9c ZY |
7788 | }; |
7789 | ||
bb8c093b | 7790 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
7791 | { |
7792 | int err = 0; | |
bb8c093b | 7793 | struct iwl3945_priv *priv; |
b481de9c | 7794 | struct ieee80211_hw *hw; |
82b9a121 | 7795 | struct iwl_3945_cfg *cfg = (struct iwl_3945_cfg *)(ent->driver_data); |
0359facc | 7796 | unsigned long flags; |
b481de9c | 7797 | |
cee53ddb KA |
7798 | /*********************** |
7799 | * 1. Allocating HW data | |
7800 | * ********************/ | |
7801 | ||
6440adb5 CB |
7802 | /* Disabling hardware scan means that mac80211 will perform scans |
7803 | * "the hard way", rather than using device's scan. */ | |
bb8c093b | 7804 | if (iwl3945_param_disable_hw_scan) { |
b481de9c | 7805 | IWL_DEBUG_INFO("Disabling hw_scan\n"); |
bb8c093b | 7806 | iwl3945_hw_ops.hw_scan = NULL; |
b481de9c ZY |
7807 | } |
7808 | ||
dfe7d458 | 7809 | if ((iwl3945_param_queues_num > IWL39_MAX_NUM_QUEUES) || |
bb8c093b | 7810 | (iwl3945_param_queues_num < IWL_MIN_NUM_QUEUES)) { |
b481de9c | 7811 | IWL_ERROR("invalid queues_num, should be between %d and %d\n", |
dfe7d458 | 7812 | IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES); |
b481de9c ZY |
7813 | err = -EINVAL; |
7814 | goto out; | |
7815 | } | |
7816 | ||
7817 | /* mac80211 allocates memory for this device instance, including | |
7818 | * space for this driver's private structure */ | |
bb8c093b | 7819 | hw = ieee80211_alloc_hw(sizeof(struct iwl3945_priv), &iwl3945_hw_ops); |
b481de9c ZY |
7820 | if (hw == NULL) { |
7821 | IWL_ERROR("Can not allocate network device\n"); | |
7822 | err = -ENOMEM; | |
7823 | goto out; | |
7824 | } | |
b481de9c | 7825 | |
cee53ddb | 7826 | SET_IEEE80211_DEV(hw, &pdev->dev); |
f51359a8 | 7827 | |
b481de9c ZY |
7828 | priv = hw->priv; |
7829 | priv->hw = hw; | |
b481de9c | 7830 | priv->pci_dev = pdev; |
82b9a121 | 7831 | priv->cfg = cfg; |
6440adb5 | 7832 | |
cee53ddb KA |
7833 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); |
7834 | hw->rate_control_algorithm = "iwl-3945-rs"; | |
7835 | hw->sta_data_size = sizeof(struct iwl3945_sta_priv); | |
7836 | ||
6440adb5 | 7837 | /* Select antenna (may be helpful if only one antenna is connected) */ |
bb8c093b | 7838 | priv->antenna = (enum iwl3945_antenna)iwl3945_param_antenna; |
c8b0e6e1 | 7839 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 7840 | iwl3945_debug_level = iwl3945_param_debug; |
b481de9c ZY |
7841 | atomic_set(&priv->restrict_refcnt, 0); |
7842 | #endif | |
b481de9c | 7843 | |
566bfe5a | 7844 | /* Tell mac80211 our characteristics */ |
605a0bd6 | 7845 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
566bfe5a | 7846 | IEEE80211_HW_NOISE_DBM; |
b481de9c | 7847 | |
f59ac048 LR |
7848 | hw->wiphy->interface_modes = |
7849 | BIT(NL80211_IFTYPE_AP) | | |
7850 | BIT(NL80211_IFTYPE_STATION) | | |
7851 | BIT(NL80211_IFTYPE_ADHOC); | |
7852 | ||
ea4a82dc LR |
7853 | hw->wiphy->fw_handles_regulatory = true; |
7854 | ||
6440adb5 | 7855 | /* 4 EDCA QOS priorities */ |
b481de9c ZY |
7856 | hw->queues = 4; |
7857 | ||
cee53ddb KA |
7858 | /*************************** |
7859 | * 2. Initializing PCI bus | |
7860 | * *************************/ | |
b481de9c ZY |
7861 | if (pci_enable_device(pdev)) { |
7862 | err = -ENODEV; | |
7863 | goto out_ieee80211_free_hw; | |
7864 | } | |
7865 | ||
7866 | pci_set_master(pdev); | |
7867 | ||
b481de9c ZY |
7868 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
7869 | if (!err) | |
7870 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
7871 | if (err) { | |
7872 | printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); | |
7873 | goto out_pci_disable_device; | |
7874 | } | |
7875 | ||
7876 | pci_set_drvdata(pdev, priv); | |
7877 | err = pci_request_regions(pdev, DRV_NAME); | |
7878 | if (err) | |
7879 | goto out_pci_disable_device; | |
6440adb5 | 7880 | |
cee53ddb KA |
7881 | /*********************** |
7882 | * 3. Read REV Register | |
7883 | * ********************/ | |
b481de9c ZY |
7884 | priv->hw_base = pci_iomap(pdev, 0, 0); |
7885 | if (!priv->hw_base) { | |
7886 | err = -ENODEV; | |
7887 | goto out_pci_release_regions; | |
7888 | } | |
7889 | ||
7890 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
7891 | (unsigned long long) pci_resource_len(pdev, 0)); | |
7892 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
7893 | ||
cee53ddb KA |
7894 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
7895 | * PCI Tx retries from interfering with C3 CPU state */ | |
7896 | pci_write_config_byte(pdev, 0x41, 0x00); | |
b481de9c | 7897 | |
cee53ddb KA |
7898 | /* nic init */ |
7899 | iwl3945_set_bit(priv, CSR_GIO_CHICKEN_BITS, | |
7900 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); | |
b481de9c | 7901 | |
cee53ddb KA |
7902 | iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
7903 | err = iwl3945_poll_bit(priv, CSR_GP_CNTRL, | |
7904 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, | |
7905 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
7906 | if (err < 0) { | |
7907 | IWL_DEBUG_INFO("Failed to init the card\n"); | |
7908 | goto out_remove_sysfs; | |
7909 | } | |
b481de9c | 7910 | |
cee53ddb KA |
7911 | /*********************** |
7912 | * 4. Read EEPROM | |
7913 | * ********************/ | |
7914 | /* Read the EEPROM */ | |
7915 | err = iwl3945_eeprom_init(priv); | |
7916 | if (err) { | |
7917 | IWL_ERROR("Unable to init EEPROM\n"); | |
7918 | goto out_remove_sysfs; | |
7919 | } | |
7920 | /* MAC Address location in EEPROM same for 3945/4965 */ | |
7921 | get_eeprom_mac(priv, priv->mac_addr); | |
7922 | IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr); | |
7923 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
b481de9c | 7924 | |
cee53ddb KA |
7925 | /*********************** |
7926 | * 5. Setup HW Constants | |
7927 | * ********************/ | |
b481de9c | 7928 | /* Device-specific setup */ |
bb8c093b | 7929 | if (iwl3945_hw_set_hw_setting(priv)) { |
b481de9c | 7930 | IWL_ERROR("failed to set hw settings\n"); |
b481de9c ZY |
7931 | goto out_iounmap; |
7932 | } | |
7933 | ||
cee53ddb KA |
7934 | /*********************** |
7935 | * 6. Setup priv | |
7936 | * ********************/ | |
7937 | priv->retry_rate = 1; | |
7938 | priv->ibss_beacon = NULL; | |
7939 | ||
7940 | spin_lock_init(&priv->lock); | |
7941 | spin_lock_init(&priv->power_data.lock); | |
7942 | spin_lock_init(&priv->sta_lock); | |
7943 | spin_lock_init(&priv->hcmd_lock); | |
7944 | ||
7945 | INIT_LIST_HEAD(&priv->free_frames); | |
7946 | mutex_init(&priv->mutex); | |
7947 | ||
7948 | /* Clear the driver's (not device's) station table */ | |
7949 | iwl3945_clear_stations_table(priv); | |
7950 | ||
7951 | priv->data_retry_limit = -1; | |
7952 | priv->ieee_channels = NULL; | |
7953 | priv->ieee_rates = NULL; | |
7954 | priv->band = IEEE80211_BAND_2GHZ; | |
7955 | ||
7956 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
7957 | ||
bb8c093b | 7958 | if (iwl3945_param_qos_enable) |
b481de9c ZY |
7959 | priv->qos_data.qos_enable = 1; |
7960 | ||
bb8c093b | 7961 | iwl3945_reset_qos(priv); |
b481de9c ZY |
7962 | |
7963 | priv->qos_data.qos_active = 0; | |
7964 | priv->qos_data.qos_cap.val = 0; | |
b481de9c | 7965 | |
b481de9c ZY |
7966 | |
7967 | priv->rates_mask = IWL_RATES_MASK; | |
7968 | /* If power management is turned on, default to AC mode */ | |
7969 | priv->power_mode = IWL_POWER_AC; | |
7970 | priv->user_txpower_limit = IWL_DEFAULT_TX_POWER; | |
7971 | ||
cee53ddb | 7972 | err = iwl3945_init_channel_map(priv); |
b481de9c | 7973 | if (err) { |
cee53ddb | 7974 | IWL_ERROR("initializing regulatory failed: %d\n", err); |
b481de9c ZY |
7975 | goto out_release_irq; |
7976 | } | |
7977 | ||
cee53ddb | 7978 | err = iwl3945_init_geos(priv); |
b481de9c | 7979 | if (err) { |
cee53ddb KA |
7980 | IWL_ERROR("initializing geos failed: %d\n", err); |
7981 | goto out_free_channel_map; | |
b481de9c ZY |
7982 | } |
7983 | ||
cee53ddb KA |
7984 | printk(KERN_INFO DRV_NAME |
7985 | ": Detected Intel Wireless WiFi Link %s\n", priv->cfg->name); | |
7986 | ||
7987 | /*********************************** | |
7988 | * 7. Initialize Module Parameters | |
7989 | * **********************************/ | |
7990 | ||
7991 | /* Initialize module parameter values here */ | |
7992 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
7993 | if (iwl3945_param_disable) { | |
7994 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
7995 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
849e0dce RC |
7996 | } |
7997 | ||
cee53ddb KA |
7998 | |
7999 | /*********************** | |
8000 | * 8. Setup Services | |
8001 | * ********************/ | |
8002 | ||
8003 | spin_lock_irqsave(&priv->lock, flags); | |
8004 | iwl3945_disable_interrupts(priv); | |
8005 | spin_unlock_irqrestore(&priv->lock, flags); | |
8006 | ||
8007 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); | |
849e0dce | 8008 | if (err) { |
cee53ddb KA |
8009 | IWL_ERROR("failed to create sysfs device attributes\n"); |
8010 | goto out_free_geos; | |
849e0dce | 8011 | } |
849e0dce | 8012 | |
cee53ddb KA |
8013 | iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); |
8014 | iwl3945_setup_deferred_work(priv); | |
8015 | iwl3945_setup_rx_handlers(priv); | |
8016 | ||
8017 | /*********************** | |
8018 | * 9. Conclude | |
8019 | * ********************/ | |
8020 | pci_save_state(pdev); | |
8021 | pci_disable_device(pdev); | |
8022 | ||
8023 | /********************************* | |
8024 | * 10. Setup and Register mac80211 | |
8025 | * *******************************/ | |
8026 | ||
5a66926a ZY |
8027 | err = ieee80211_register_hw(priv->hw); |
8028 | if (err) { | |
8029 | IWL_ERROR("Failed to register network device (error %d)\n", err); | |
cee53ddb | 8030 | goto out_remove_sysfs; |
5a66926a | 8031 | } |
b481de9c | 8032 | |
5a66926a ZY |
8033 | priv->hw->conf.beacon_int = 100; |
8034 | priv->mac80211_registered = 1; | |
cee53ddb | 8035 | |
b481de9c | 8036 | |
ebef2008 AK |
8037 | err = iwl3945_rfkill_init(priv); |
8038 | if (err) | |
8039 | IWL_ERROR("Unable to initialize RFKILL system. " | |
8040 | "Ignoring error: %d\n", err); | |
8041 | ||
b481de9c ZY |
8042 | return 0; |
8043 | ||
cee53ddb KA |
8044 | out_remove_sysfs: |
8045 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); | |
849e0dce RC |
8046 | out_free_geos: |
8047 | iwl3945_free_geos(priv); | |
8048 | out_free_channel_map: | |
8049 | iwl3945_free_channel_map(priv); | |
cee53ddb | 8050 | |
b481de9c ZY |
8051 | |
8052 | out_release_irq: | |
b481de9c ZY |
8053 | destroy_workqueue(priv->workqueue); |
8054 | priv->workqueue = NULL; | |
bb8c093b | 8055 | iwl3945_unset_hw_setting(priv); |
b481de9c ZY |
8056 | |
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: | |
8062 | pci_disable_device(pdev); | |
8063 | pci_set_drvdata(pdev, NULL); | |
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 | |
b481de9c ZY |
8143 | pci_set_power_state(pdev, PCI_D3hot); |
8144 | ||
b481de9c ZY |
8145 | return 0; |
8146 | } | |
8147 | ||
bb8c093b | 8148 | static int iwl3945_pci_resume(struct pci_dev *pdev) |
b481de9c | 8149 | { |
bb8c093b | 8150 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8151 | |
b481de9c | 8152 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 8153 | |
e655b9f0 ZY |
8154 | if (priv->is_open) |
8155 | iwl3945_mac_start(priv->hw); | |
b481de9c | 8156 | |
e655b9f0 | 8157 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
8158 | return 0; |
8159 | } | |
8160 | ||
8161 | #endif /* CONFIG_PM */ | |
8162 | ||
ebef2008 | 8163 | /*************** RFKILL FUNCTIONS **********/ |
80fcc9e2 | 8164 | #ifdef CONFIG_IWL3945_RFKILL |
ebef2008 AK |
8165 | /* software rf-kill from user */ |
8166 | static int iwl3945_rfkill_soft_rf_kill(void *data, enum rfkill_state state) | |
8167 | { | |
8168 | struct iwl3945_priv *priv = data; | |
8169 | int err = 0; | |
8170 | ||
80fcc9e2 | 8171 | if (!priv->rfkill) |
ebef2008 AK |
8172 | return 0; |
8173 | ||
8174 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
8175 | return 0; | |
8176 | ||
a96a27f9 | 8177 | IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state); |
ebef2008 AK |
8178 | mutex_lock(&priv->mutex); |
8179 | ||
8180 | switch (state) { | |
acdfe9b4 | 8181 | case RFKILL_STATE_UNBLOCKED: |
80fcc9e2 | 8182 | if (iwl3945_is_rfkill_hw(priv)) { |
ebef2008 | 8183 | err = -EBUSY; |
80fcc9e2 AG |
8184 | goto out_unlock; |
8185 | } | |
8186 | iwl3945_radio_kill_sw(priv, 0); | |
ebef2008 | 8187 | break; |
acdfe9b4 | 8188 | case RFKILL_STATE_SOFT_BLOCKED: |
ebef2008 | 8189 | iwl3945_radio_kill_sw(priv, 1); |
ebef2008 | 8190 | break; |
acdfe9b4 | 8191 | default: |
a96a27f9 | 8192 | IWL_WARNING("we received unexpected RFKILL state %d\n", state); |
acdfe9b4 | 8193 | break; |
ebef2008 | 8194 | } |
80fcc9e2 | 8195 | out_unlock: |
ebef2008 AK |
8196 | mutex_unlock(&priv->mutex); |
8197 | ||
8198 | return err; | |
8199 | } | |
8200 | ||
8201 | int iwl3945_rfkill_init(struct iwl3945_priv *priv) | |
8202 | { | |
8203 | struct device *device = wiphy_dev(priv->hw->wiphy); | |
8204 | int ret = 0; | |
8205 | ||
8206 | BUG_ON(device == NULL); | |
8207 | ||
8208 | IWL_DEBUG_RF_KILL("Initializing RFKILL.\n"); | |
80fcc9e2 AG |
8209 | priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN); |
8210 | if (!priv->rfkill) { | |
ebef2008 AK |
8211 | IWL_ERROR("Unable to allocate rfkill device.\n"); |
8212 | ret = -ENOMEM; | |
8213 | goto error; | |
8214 | } | |
8215 | ||
80fcc9e2 AG |
8216 | priv->rfkill->name = priv->cfg->name; |
8217 | priv->rfkill->data = priv; | |
8218 | priv->rfkill->state = RFKILL_STATE_UNBLOCKED; | |
8219 | priv->rfkill->toggle_radio = iwl3945_rfkill_soft_rf_kill; | |
8220 | priv->rfkill->user_claim_unsupported = 1; | |
ebef2008 | 8221 | |
80fcc9e2 AG |
8222 | priv->rfkill->dev.class->suspend = NULL; |
8223 | priv->rfkill->dev.class->resume = NULL; | |
ebef2008 | 8224 | |
80fcc9e2 | 8225 | ret = rfkill_register(priv->rfkill); |
ebef2008 AK |
8226 | if (ret) { |
8227 | IWL_ERROR("Unable to register rfkill: %d\n", ret); | |
80fcc9e2 | 8228 | goto freed_rfkill; |
ebef2008 AK |
8229 | } |
8230 | ||
8231 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8232 | return ret; | |
8233 | ||
ebef2008 | 8234 | freed_rfkill: |
80fcc9e2 AG |
8235 | if (priv->rfkill != NULL) |
8236 | rfkill_free(priv->rfkill); | |
8237 | priv->rfkill = NULL; | |
ebef2008 AK |
8238 | |
8239 | error: | |
8240 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8241 | return ret; | |
8242 | } | |
8243 | ||
8244 | void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) | |
8245 | { | |
80fcc9e2 AG |
8246 | if (priv->rfkill) |
8247 | rfkill_unregister(priv->rfkill); | |
ebef2008 | 8248 | |
80fcc9e2 | 8249 | priv->rfkill = NULL; |
ebef2008 AK |
8250 | } |
8251 | ||
8252 | /* set rf-kill to the right state. */ | |
8253 | void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) | |
8254 | { | |
8255 | ||
80fcc9e2 AG |
8256 | if (!priv->rfkill) |
8257 | return; | |
8258 | ||
8259 | if (iwl3945_is_rfkill_hw(priv)) { | |
8260 | rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED); | |
ebef2008 | 8261 | return; |
80fcc9e2 | 8262 | } |
ebef2008 | 8263 | |
80fcc9e2 AG |
8264 | if (!iwl3945_is_rfkill_sw(priv)) |
8265 | rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED); | |
ebef2008 | 8266 | else |
80fcc9e2 | 8267 | rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED); |
ebef2008 AK |
8268 | } |
8269 | #endif | |
8270 | ||
b481de9c ZY |
8271 | /***************************************************************************** |
8272 | * | |
8273 | * driver and module entry point | |
8274 | * | |
8275 | *****************************************************************************/ | |
8276 | ||
bb8c093b | 8277 | static struct pci_driver iwl3945_driver = { |
b481de9c | 8278 | .name = DRV_NAME, |
bb8c093b CH |
8279 | .id_table = iwl3945_hw_card_ids, |
8280 | .probe = iwl3945_pci_probe, | |
8281 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 8282 | #ifdef CONFIG_PM |
bb8c093b CH |
8283 | .suspend = iwl3945_pci_suspend, |
8284 | .resume = iwl3945_pci_resume, | |
b481de9c ZY |
8285 | #endif |
8286 | }; | |
8287 | ||
bb8c093b | 8288 | static int __init iwl3945_init(void) |
b481de9c ZY |
8289 | { |
8290 | ||
8291 | int ret; | |
8292 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
8293 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
8294 | |
8295 | ret = iwl3945_rate_control_register(); | |
8296 | if (ret) { | |
8297 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
8298 | return ret; | |
8299 | } | |
8300 | ||
bb8c093b | 8301 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c ZY |
8302 | if (ret) { |
8303 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 8304 | goto error_register; |
b481de9c | 8305 | } |
c8b0e6e1 | 8306 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8307 | ret = driver_create_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c ZY |
8308 | if (ret) { |
8309 | IWL_ERROR("Unable to create driver sysfs file\n"); | |
897e1cf2 | 8310 | goto error_debug; |
b481de9c ZY |
8311 | } |
8312 | #endif | |
8313 | ||
8314 | return ret; | |
897e1cf2 RC |
8315 | |
8316 | #ifdef CONFIG_IWL3945_DEBUG | |
8317 | error_debug: | |
8318 | pci_unregister_driver(&iwl3945_driver); | |
8319 | #endif | |
8320 | error_register: | |
8321 | iwl3945_rate_control_unregister(); | |
8322 | return ret; | |
b481de9c ZY |
8323 | } |
8324 | ||
bb8c093b | 8325 | static void __exit iwl3945_exit(void) |
b481de9c | 8326 | { |
c8b0e6e1 | 8327 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8328 | driver_remove_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c | 8329 | #endif |
bb8c093b | 8330 | pci_unregister_driver(&iwl3945_driver); |
897e1cf2 | 8331 | iwl3945_rate_control_unregister(); |
b481de9c ZY |
8332 | } |
8333 | ||
25cb6cad ZY |
8334 | MODULE_FIRMWARE("iwlwifi-3945" IWL3945_UCODE_API ".ucode"); |
8335 | ||
bb8c093b | 8336 | module_param_named(antenna, iwl3945_param_antenna, int, 0444); |
b481de9c | 8337 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
bb8c093b | 8338 | module_param_named(disable, iwl3945_param_disable, int, 0444); |
b481de9c | 8339 | MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); |
bb8c093b | 8340 | module_param_named(hwcrypto, iwl3945_param_hwcrypto, int, 0444); |
b481de9c ZY |
8341 | MODULE_PARM_DESC(hwcrypto, |
8342 | "using hardware crypto engine (default 0 [software])\n"); | |
bb8c093b | 8343 | module_param_named(debug, iwl3945_param_debug, int, 0444); |
b481de9c | 8344 | MODULE_PARM_DESC(debug, "debug output mask"); |
bb8c093b | 8345 | module_param_named(disable_hw_scan, iwl3945_param_disable_hw_scan, int, 0444); |
b481de9c ZY |
8346 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
8347 | ||
bb8c093b | 8348 | module_param_named(queues_num, iwl3945_param_queues_num, int, 0444); |
b481de9c ZY |
8349 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
8350 | ||
8351 | /* QoS */ | |
bb8c093b | 8352 | module_param_named(qos_enable, iwl3945_param_qos_enable, int, 0444); |
b481de9c ZY |
8353 | MODULE_PARM_DESC(qos_enable, "enable all QoS functionality"); |
8354 | ||
bb8c093b CH |
8355 | module_exit(iwl3945_exit); |
8356 | module_init(iwl3945_init); |