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: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
b481de9c ZY |
32 | #include <linux/init.h> |
33 | #include <linux/pci.h> | |
34 | #include <linux/dma-mapping.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/wireless.h> | |
39 | #include <linux/firmware.h> | |
b481de9c ZY |
40 | #include <linux/etherdevice.h> |
41 | #include <linux/if_arp.h> | |
42 | ||
43 | #include <net/ieee80211_radiotap.h> | |
7e272fcf | 44 | #include <net/lib80211.h> |
b481de9c ZY |
45 | #include <net/mac80211.h> |
46 | ||
47 | #include <asm/div64.h> | |
48 | ||
82b9a121 | 49 | #include "iwl-3945-core.h" |
b481de9c ZY |
50 | #include "iwl-3945.h" |
51 | #include "iwl-helpers.h" | |
52 | ||
c8b0e6e1 | 53 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 54 | u32 iwl3945_debug_level; |
b481de9c ZY |
55 | #endif |
56 | ||
bb8c093b CH |
57 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
58 | struct iwl3945_tx_queue *txq); | |
416e1438 | 59 | |
b481de9c ZY |
60 | /****************************************************************************** |
61 | * | |
62 | * module boiler plate | |
63 | * | |
64 | ******************************************************************************/ | |
65 | ||
66 | /* module parameters */ | |
6440adb5 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 | 71 | int iwl3945_param_hwcrypto; /* def: 0 = use software encryption */ |
dfe7d458 | 72 | int iwl3945_param_queues_num = IWL39_MAX_NUM_QUEUES; /* def: 8 Tx queues */ |
b481de9c ZY |
73 | |
74 | /* | |
75 | * module name, copyright, version, etc. | |
76 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
77 | */ | |
78 | ||
79 | #define DRV_DESCRIPTION \ | |
80 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
81 | ||
c8b0e6e1 | 82 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
83 | #define VD "d" |
84 | #else | |
85 | #define VD | |
86 | #endif | |
87 | ||
c8b0e6e1 | 88 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
89 | #define VS "s" |
90 | #else | |
91 | #define VS | |
92 | #endif | |
93 | ||
b9e0b449 | 94 | #define IWLWIFI_VERSION "1.2.26k" VD VS |
eb7ae89c | 95 | #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation" |
b481de9c ZY |
96 | #define DRV_VERSION IWLWIFI_VERSION |
97 | ||
b481de9c ZY |
98 | |
99 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
100 | MODULE_VERSION(DRV_VERSION); | |
101 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
102 | MODULE_LICENSE("GPL"); | |
103 | ||
8318d78a JB |
104 | static const struct ieee80211_supported_band *iwl3945_get_band( |
105 | struct iwl3945_priv *priv, enum ieee80211_band band) | |
b481de9c | 106 | { |
8318d78a | 107 | return priv->hw->wiphy->bands[band]; |
b481de9c ZY |
108 | } |
109 | ||
b481de9c ZY |
110 | /*************** DMA-QUEUE-GENERAL-FUNCTIONS ***** |
111 | * DMA services | |
112 | * | |
113 | * Theory of operation | |
114 | * | |
6440adb5 CB |
115 | * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer |
116 | * of buffer descriptors, each of which points to one or more data buffers for | |
117 | * the device to read from or fill. Driver and device exchange status of each | |
118 | * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty | |
119 | * entries in each circular buffer, to protect against confusing empty and full | |
120 | * queue states. | |
121 | * | |
122 | * The device reads or writes the data in the queues via the device's several | |
123 | * DMA/FIFO channels. Each queue is mapped to a single DMA channel. | |
b481de9c ZY |
124 | * |
125 | * For Tx queue, there are low mark and high mark limits. If, after queuing | |
126 | * the packet for Tx, free space become < low mark, Tx queue stopped. When | |
127 | * reclaiming packets (on 'tx done IRQ), if free space become > high mark, | |
128 | * Tx queue resumed. | |
129 | * | |
6440adb5 CB |
130 | * The 3945 operates with six queues: One receive queue, one transmit queue |
131 | * (#4) for sending commands to the device firmware, and four transmit queues | |
132 | * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused. | |
b481de9c ZY |
133 | ***************************************************/ |
134 | ||
c54b679d | 135 | int iwl3945_queue_space(const struct iwl3945_queue *q) |
b481de9c | 136 | { |
fc4b6853 | 137 | int s = q->read_ptr - q->write_ptr; |
b481de9c | 138 | |
fc4b6853 | 139 | if (q->read_ptr > q->write_ptr) |
b481de9c ZY |
140 | s -= q->n_bd; |
141 | ||
142 | if (s <= 0) | |
143 | s += q->n_window; | |
144 | /* keep some reserve to not confuse empty and full situations */ | |
145 | s -= 2; | |
146 | if (s < 0) | |
147 | s = 0; | |
148 | return s; | |
149 | } | |
150 | ||
c54b679d | 151 | int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i) |
b481de9c | 152 | { |
fc4b6853 TW |
153 | return q->write_ptr > q->read_ptr ? |
154 | (i >= q->read_ptr && i < q->write_ptr) : | |
155 | !(i < q->read_ptr && i >= q->write_ptr); | |
b481de9c ZY |
156 | } |
157 | ||
c54b679d | 158 | |
bb8c093b | 159 | static inline u8 get_cmd_index(struct iwl3945_queue *q, u32 index, int is_huge) |
b481de9c | 160 | { |
6440adb5 | 161 | /* This is for scan command, the big buffer at end of command array */ |
b481de9c | 162 | if (is_huge) |
6440adb5 | 163 | return q->n_window; /* must be power of 2 */ |
b481de9c | 164 | |
6440adb5 | 165 | /* Otherwise, use normal size buffers */ |
b481de9c ZY |
166 | return index & (q->n_window - 1); |
167 | } | |
168 | ||
6440adb5 CB |
169 | /** |
170 | * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes | |
171 | */ | |
bb8c093b | 172 | static int iwl3945_queue_init(struct iwl3945_priv *priv, struct iwl3945_queue *q, |
b481de9c ZY |
173 | int count, int slots_num, u32 id) |
174 | { | |
175 | q->n_bd = count; | |
176 | q->n_window = slots_num; | |
177 | q->id = id; | |
178 | ||
c54b679d TW |
179 | /* count must be power-of-two size, otherwise iwl_queue_inc_wrap |
180 | * and iwl_queue_dec_wrap are broken. */ | |
b481de9c ZY |
181 | BUG_ON(!is_power_of_2(count)); |
182 | ||
183 | /* slots_num must be power-of-two size, otherwise | |
184 | * get_cmd_index is broken. */ | |
185 | BUG_ON(!is_power_of_2(slots_num)); | |
186 | ||
187 | q->low_mark = q->n_window / 4; | |
188 | if (q->low_mark < 4) | |
189 | q->low_mark = 4; | |
190 | ||
191 | q->high_mark = q->n_window / 8; | |
192 | if (q->high_mark < 2) | |
193 | q->high_mark = 2; | |
194 | ||
fc4b6853 | 195 | q->write_ptr = q->read_ptr = 0; |
b481de9c ZY |
196 | |
197 | return 0; | |
198 | } | |
199 | ||
6440adb5 CB |
200 | /** |
201 | * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue | |
202 | */ | |
bb8c093b CH |
203 | static int iwl3945_tx_queue_alloc(struct iwl3945_priv *priv, |
204 | struct iwl3945_tx_queue *txq, u32 id) | |
b481de9c ZY |
205 | { |
206 | struct pci_dev *dev = priv->pci_dev; | |
207 | ||
6440adb5 CB |
208 | /* Driver private data, only for Tx (not command) queues, |
209 | * not shared with device. */ | |
b481de9c ZY |
210 | if (id != IWL_CMD_QUEUE_NUM) { |
211 | txq->txb = kmalloc(sizeof(txq->txb[0]) * | |
212 | TFD_QUEUE_SIZE_MAX, GFP_KERNEL); | |
213 | if (!txq->txb) { | |
01ebd063 | 214 | IWL_ERROR("kmalloc for auxiliary BD " |
b481de9c ZY |
215 | "structures failed\n"); |
216 | goto error; | |
217 | } | |
218 | } else | |
219 | txq->txb = NULL; | |
220 | ||
6440adb5 CB |
221 | /* Circular buffer of transmit frame descriptors (TFDs), |
222 | * shared with device */ | |
b481de9c ZY |
223 | txq->bd = pci_alloc_consistent(dev, |
224 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX, | |
225 | &txq->q.dma_addr); | |
226 | ||
227 | if (!txq->bd) { | |
228 | IWL_ERROR("pci_alloc_consistent(%zd) failed\n", | |
229 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX); | |
230 | goto error; | |
231 | } | |
232 | txq->q.id = id; | |
233 | ||
234 | return 0; | |
235 | ||
236 | error: | |
3ac7f146 TW |
237 | kfree(txq->txb); |
238 | txq->txb = NULL; | |
b481de9c ZY |
239 | |
240 | return -ENOMEM; | |
241 | } | |
242 | ||
6440adb5 CB |
243 | /** |
244 | * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue | |
245 | */ | |
bb8c093b CH |
246 | int iwl3945_tx_queue_init(struct iwl3945_priv *priv, |
247 | struct iwl3945_tx_queue *txq, int slots_num, u32 txq_id) | |
b481de9c ZY |
248 | { |
249 | struct pci_dev *dev = priv->pci_dev; | |
250 | int len; | |
251 | int rc = 0; | |
252 | ||
6440adb5 CB |
253 | /* |
254 | * Alloc buffer array for commands (Tx or other types of commands). | |
255 | * For the command queue (#4), allocate command space + one big | |
256 | * command for scan, since scan command is very huge; the system will | |
257 | * not have two scans at the same time, so only one is needed. | |
258 | * For data Tx queues (all other queues), no super-size command | |
259 | * space is needed. | |
260 | */ | |
bb8c093b | 261 | len = sizeof(struct iwl3945_cmd) * slots_num; |
b481de9c ZY |
262 | if (txq_id == IWL_CMD_QUEUE_NUM) |
263 | len += IWL_MAX_SCAN_SIZE; | |
264 | txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd); | |
265 | if (!txq->cmd) | |
266 | return -ENOMEM; | |
267 | ||
6440adb5 | 268 | /* Alloc driver data array and TFD circular buffer */ |
bb8c093b | 269 | rc = iwl3945_tx_queue_alloc(priv, txq, txq_id); |
b481de9c ZY |
270 | if (rc) { |
271 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); | |
272 | ||
273 | return -ENOMEM; | |
274 | } | |
275 | txq->need_update = 0; | |
276 | ||
277 | /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise | |
c54b679d | 278 | * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ |
b481de9c | 279 | BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); |
6440adb5 CB |
280 | |
281 | /* Initialize queue high/low-water, head/tail indexes */ | |
bb8c093b | 282 | iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); |
b481de9c | 283 | |
6440adb5 | 284 | /* Tell device where to find queue, enable DMA channel. */ |
bb8c093b | 285 | iwl3945_hw_tx_queue_init(priv, txq); |
b481de9c ZY |
286 | |
287 | return 0; | |
288 | } | |
289 | ||
290 | /** | |
bb8c093b | 291 | * iwl3945_tx_queue_free - Deallocate DMA queue. |
b481de9c ZY |
292 | * @txq: Transmit queue to deallocate. |
293 | * | |
294 | * Empty queue by removing and destroying all BD's. | |
6440adb5 CB |
295 | * Free all buffers. |
296 | * 0-fill, but do not free "txq" descriptor structure. | |
b481de9c | 297 | */ |
bb8c093b | 298 | void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq) |
b481de9c | 299 | { |
bb8c093b | 300 | struct iwl3945_queue *q = &txq->q; |
b481de9c ZY |
301 | struct pci_dev *dev = priv->pci_dev; |
302 | int len; | |
303 | ||
304 | if (q->n_bd == 0) | |
305 | return; | |
306 | ||
307 | /* first, empty all BD's */ | |
fc4b6853 | 308 | for (; q->write_ptr != q->read_ptr; |
c54b679d | 309 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) |
bb8c093b | 310 | iwl3945_hw_txq_free_tfd(priv, txq); |
b481de9c | 311 | |
bb8c093b | 312 | len = sizeof(struct iwl3945_cmd) * q->n_window; |
b481de9c ZY |
313 | if (q->id == IWL_CMD_QUEUE_NUM) |
314 | len += IWL_MAX_SCAN_SIZE; | |
315 | ||
6440adb5 | 316 | /* De-alloc array of command/tx buffers */ |
b481de9c ZY |
317 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); |
318 | ||
6440adb5 | 319 | /* De-alloc circular buffer of TFDs */ |
b481de9c | 320 | if (txq->q.n_bd) |
bb8c093b | 321 | pci_free_consistent(dev, sizeof(struct iwl3945_tfd_frame) * |
b481de9c ZY |
322 | txq->q.n_bd, txq->bd, txq->q.dma_addr); |
323 | ||
6440adb5 | 324 | /* De-alloc array of per-TFD driver data */ |
3ac7f146 TW |
325 | kfree(txq->txb); |
326 | txq->txb = NULL; | |
b481de9c | 327 | |
6440adb5 | 328 | /* 0-fill queue descriptor structure */ |
b481de9c ZY |
329 | memset(txq, 0, sizeof(*txq)); |
330 | } | |
331 | ||
bb8c093b | 332 | const u8 iwl3945_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
b481de9c ZY |
333 | |
334 | /*************** STATION TABLE MANAGEMENT **** | |
9fbab516 | 335 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
336 | * the functionality provided here |
337 | */ | |
338 | ||
339 | /**************************************************************/ | |
01ebd063 | 340 | #if 0 /* temporary disable till we add real remove station */ |
6440adb5 CB |
341 | /** |
342 | * iwl3945_remove_station - Remove driver's knowledge of station. | |
343 | * | |
344 | * NOTE: This does not remove station from device's station table. | |
345 | */ | |
bb8c093b | 346 | static u8 iwl3945_remove_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap) |
b481de9c ZY |
347 | { |
348 | int index = IWL_INVALID_STATION; | |
349 | int i; | |
350 | unsigned long flags; | |
351 | ||
352 | spin_lock_irqsave(&priv->sta_lock, flags); | |
353 | ||
354 | if (is_ap) | |
355 | index = IWL_AP_ID; | |
356 | else if (is_broadcast_ether_addr(addr)) | |
357 | index = priv->hw_setting.bcast_sta_id; | |
358 | else | |
359 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) | |
360 | if (priv->stations[i].used && | |
361 | !compare_ether_addr(priv->stations[i].sta.sta.addr, | |
362 | addr)) { | |
363 | index = i; | |
364 | break; | |
365 | } | |
366 | ||
367 | if (unlikely(index == IWL_INVALID_STATION)) | |
368 | goto out; | |
369 | ||
370 | if (priv->stations[index].used) { | |
371 | priv->stations[index].used = 0; | |
372 | priv->num_stations--; | |
373 | } | |
374 | ||
375 | BUG_ON(priv->num_stations < 0); | |
376 | ||
377 | out: | |
378 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
379 | return 0; | |
380 | } | |
556f8db7 | 381 | #endif |
6440adb5 CB |
382 | |
383 | /** | |
384 | * iwl3945_clear_stations_table - Clear the driver's station table | |
385 | * | |
386 | * NOTE: This does not clear or otherwise alter the device's station table. | |
387 | */ | |
bb8c093b | 388 | static void iwl3945_clear_stations_table(struct iwl3945_priv *priv) |
b481de9c ZY |
389 | { |
390 | unsigned long flags; | |
391 | ||
392 | spin_lock_irqsave(&priv->sta_lock, flags); | |
393 | ||
394 | priv->num_stations = 0; | |
395 | memset(priv->stations, 0, sizeof(priv->stations)); | |
396 | ||
397 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
398 | } | |
399 | ||
6440adb5 CB |
400 | /** |
401 | * iwl3945_add_station - Add station to station tables in driver and device | |
402 | */ | |
bb8c093b | 403 | u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap, u8 flags) |
b481de9c ZY |
404 | { |
405 | int i; | |
406 | int index = IWL_INVALID_STATION; | |
bb8c093b | 407 | struct iwl3945_station_entry *station; |
b481de9c | 408 | unsigned long flags_spin; |
c14c521e | 409 | u8 rate; |
b481de9c ZY |
410 | |
411 | spin_lock_irqsave(&priv->sta_lock, flags_spin); | |
412 | if (is_ap) | |
413 | index = IWL_AP_ID; | |
414 | else if (is_broadcast_ether_addr(addr)) | |
415 | index = priv->hw_setting.bcast_sta_id; | |
416 | else | |
417 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) { | |
418 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, | |
419 | addr)) { | |
420 | index = i; | |
421 | break; | |
422 | } | |
423 | ||
424 | if (!priv->stations[i].used && | |
425 | index == IWL_INVALID_STATION) | |
426 | index = i; | |
427 | } | |
428 | ||
01ebd063 | 429 | /* These two conditions has the same outcome but keep them separate |
b481de9c ZY |
430 | since they have different meaning */ |
431 | if (unlikely(index == IWL_INVALID_STATION)) { | |
432 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
433 | return index; | |
434 | } | |
435 | ||
436 | if (priv->stations[index].used && | |
437 | !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) { | |
438 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
439 | return index; | |
440 | } | |
441 | ||
e174961c | 442 | IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index, addr); |
b481de9c ZY |
443 | station = &priv->stations[index]; |
444 | station->used = 1; | |
445 | priv->num_stations++; | |
446 | ||
6440adb5 | 447 | /* Set up the REPLY_ADD_STA command to send to device */ |
bb8c093b | 448 | memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd)); |
b481de9c ZY |
449 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
450 | station->sta.mode = 0; | |
451 | station->sta.sta.sta_id = index; | |
452 | station->sta.station_flags = 0; | |
453 | ||
8318d78a | 454 | if (priv->band == IEEE80211_BAND_5GHZ) |
69946333 TW |
455 | rate = IWL_RATE_6M_PLCP; |
456 | else | |
457 | rate = IWL_RATE_1M_PLCP; | |
c14c521e ZY |
458 | |
459 | /* Turn on both antennas for the station... */ | |
460 | station->sta.rate_n_flags = | |
bb8c093b | 461 | iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK); |
c14c521e ZY |
462 | station->current_rate.rate_n_flags = |
463 | le16_to_cpu(station->sta.rate_n_flags); | |
464 | ||
b481de9c | 465 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
6440adb5 CB |
466 | |
467 | /* Add station to device's station table */ | |
bb8c093b | 468 | iwl3945_send_add_station(priv, &station->sta, flags); |
b481de9c ZY |
469 | return index; |
470 | ||
471 | } | |
472 | ||
473 | /*************** DRIVER STATUS FUNCTIONS *****/ | |
474 | ||
bb8c093b | 475 | static inline int iwl3945_is_ready(struct iwl3945_priv *priv) |
b481de9c ZY |
476 | { |
477 | /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are | |
478 | * set but EXIT_PENDING is not */ | |
479 | return test_bit(STATUS_READY, &priv->status) && | |
480 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) && | |
481 | !test_bit(STATUS_EXIT_PENDING, &priv->status); | |
482 | } | |
483 | ||
bb8c093b | 484 | static inline int iwl3945_is_alive(struct iwl3945_priv *priv) |
b481de9c ZY |
485 | { |
486 | return test_bit(STATUS_ALIVE, &priv->status); | |
487 | } | |
488 | ||
bb8c093b | 489 | static inline int iwl3945_is_init(struct iwl3945_priv *priv) |
b481de9c ZY |
490 | { |
491 | return test_bit(STATUS_INIT, &priv->status); | |
492 | } | |
493 | ||
80fcc9e2 AG |
494 | static inline int iwl3945_is_rfkill_sw(struct iwl3945_priv *priv) |
495 | { | |
496 | return test_bit(STATUS_RF_KILL_SW, &priv->status); | |
497 | } | |
498 | ||
499 | static inline int iwl3945_is_rfkill_hw(struct iwl3945_priv *priv) | |
500 | { | |
501 | return test_bit(STATUS_RF_KILL_HW, &priv->status); | |
502 | } | |
503 | ||
bb8c093b | 504 | static inline int iwl3945_is_rfkill(struct iwl3945_priv *priv) |
b481de9c | 505 | { |
80fcc9e2 AG |
506 | return iwl3945_is_rfkill_hw(priv) || |
507 | iwl3945_is_rfkill_sw(priv); | |
b481de9c ZY |
508 | } |
509 | ||
bb8c093b | 510 | static inline int iwl3945_is_ready_rf(struct iwl3945_priv *priv) |
b481de9c ZY |
511 | { |
512 | ||
bb8c093b | 513 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
514 | return 0; |
515 | ||
bb8c093b | 516 | return iwl3945_is_ready(priv); |
b481de9c ZY |
517 | } |
518 | ||
519 | /*************** HOST COMMAND QUEUE FUNCTIONS *****/ | |
520 | ||
c3056065 | 521 | #define IWL_CMD(x) case x: return #x |
b481de9c ZY |
522 | |
523 | static const char *get_cmd_string(u8 cmd) | |
524 | { | |
525 | switch (cmd) { | |
526 | IWL_CMD(REPLY_ALIVE); | |
527 | IWL_CMD(REPLY_ERROR); | |
528 | IWL_CMD(REPLY_RXON); | |
529 | IWL_CMD(REPLY_RXON_ASSOC); | |
530 | IWL_CMD(REPLY_QOS_PARAM); | |
531 | IWL_CMD(REPLY_RXON_TIMING); | |
532 | IWL_CMD(REPLY_ADD_STA); | |
533 | IWL_CMD(REPLY_REMOVE_STA); | |
534 | IWL_CMD(REPLY_REMOVE_ALL_STA); | |
535 | IWL_CMD(REPLY_3945_RX); | |
536 | IWL_CMD(REPLY_TX); | |
537 | IWL_CMD(REPLY_RATE_SCALE); | |
538 | IWL_CMD(REPLY_LEDS_CMD); | |
539 | IWL_CMD(REPLY_TX_LINK_QUALITY_CMD); | |
540 | IWL_CMD(RADAR_NOTIFICATION); | |
541 | IWL_CMD(REPLY_QUIET_CMD); | |
542 | IWL_CMD(REPLY_CHANNEL_SWITCH); | |
543 | IWL_CMD(CHANNEL_SWITCH_NOTIFICATION); | |
544 | IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD); | |
545 | IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION); | |
546 | IWL_CMD(POWER_TABLE_CMD); | |
547 | IWL_CMD(PM_SLEEP_NOTIFICATION); | |
548 | IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC); | |
549 | IWL_CMD(REPLY_SCAN_CMD); | |
550 | IWL_CMD(REPLY_SCAN_ABORT_CMD); | |
551 | IWL_CMD(SCAN_START_NOTIFICATION); | |
552 | IWL_CMD(SCAN_RESULTS_NOTIFICATION); | |
553 | IWL_CMD(SCAN_COMPLETE_NOTIFICATION); | |
554 | IWL_CMD(BEACON_NOTIFICATION); | |
555 | IWL_CMD(REPLY_TX_BEACON); | |
556 | IWL_CMD(WHO_IS_AWAKE_NOTIFICATION); | |
557 | IWL_CMD(QUIET_NOTIFICATION); | |
558 | IWL_CMD(REPLY_TX_PWR_TABLE_CMD); | |
559 | IWL_CMD(MEASURE_ABORT_NOTIFICATION); | |
560 | IWL_CMD(REPLY_BT_CONFIG); | |
561 | IWL_CMD(REPLY_STATISTICS_CMD); | |
562 | IWL_CMD(STATISTICS_NOTIFICATION); | |
563 | IWL_CMD(REPLY_CARD_STATE_CMD); | |
564 | IWL_CMD(CARD_STATE_NOTIFICATION); | |
565 | IWL_CMD(MISSED_BEACONS_NOTIFICATION); | |
566 | default: | |
567 | return "UNKNOWN"; | |
568 | ||
569 | } | |
570 | } | |
571 | ||
572 | #define HOST_COMPLETE_TIMEOUT (HZ / 2) | |
573 | ||
574 | /** | |
bb8c093b | 575 | * iwl3945_enqueue_hcmd - enqueue a uCode command |
b481de9c ZY |
576 | * @priv: device private data point |
577 | * @cmd: a point to the ucode command structure | |
578 | * | |
579 | * The function returns < 0 values to indicate the operation is | |
580 | * failed. On success, it turns the index (> 0) of command in the | |
581 | * command queue. | |
582 | */ | |
bb8c093b | 583 | static int iwl3945_enqueue_hcmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 584 | { |
bb8c093b CH |
585 | struct iwl3945_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; |
586 | struct iwl3945_queue *q = &txq->q; | |
587 | struct iwl3945_tfd_frame *tfd; | |
b481de9c | 588 | u32 *control_flags; |
bb8c093b | 589 | struct iwl3945_cmd *out_cmd; |
b481de9c ZY |
590 | u32 idx; |
591 | u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr)); | |
592 | dma_addr_t phys_addr; | |
593 | int pad; | |
594 | u16 count; | |
595 | int ret; | |
596 | unsigned long flags; | |
597 | ||
598 | /* If any of the command structures end up being larger than | |
599 | * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then | |
600 | * we will need to increase the size of the TFD entries */ | |
601 | BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) && | |
602 | !(cmd->meta.flags & CMD_SIZE_HUGE)); | |
603 | ||
c342a1b9 GG |
604 | |
605 | if (iwl3945_is_rfkill(priv)) { | |
606 | IWL_DEBUG_INFO("Not sending command - RF KILL"); | |
607 | return -EIO; | |
608 | } | |
609 | ||
bb8c093b | 610 | if (iwl3945_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) { |
b481de9c ZY |
611 | IWL_ERROR("No space for Tx\n"); |
612 | return -ENOSPC; | |
613 | } | |
614 | ||
615 | spin_lock_irqsave(&priv->hcmd_lock, flags); | |
616 | ||
fc4b6853 | 617 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
618 | memset(tfd, 0, sizeof(*tfd)); |
619 | ||
620 | control_flags = (u32 *) tfd; | |
621 | ||
fc4b6853 | 622 | idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE); |
b481de9c ZY |
623 | out_cmd = &txq->cmd[idx]; |
624 | ||
625 | out_cmd->hdr.cmd = cmd->id; | |
626 | memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta)); | |
627 | memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len); | |
628 | ||
629 | /* At this point, the out_cmd now has all of the incoming cmd | |
630 | * information */ | |
631 | ||
632 | out_cmd->hdr.flags = 0; | |
633 | out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) | | |
fc4b6853 | 634 | INDEX_TO_SEQ(q->write_ptr)); |
b481de9c ZY |
635 | if (out_cmd->meta.flags & CMD_SIZE_HUGE) |
636 | out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME); | |
637 | ||
638 | phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx + | |
bb8c093b CH |
639 | offsetof(struct iwl3945_cmd, hdr); |
640 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size); | |
b481de9c ZY |
641 | |
642 | pad = U32_PAD(cmd->len); | |
643 | count = TFD_CTL_COUNT_GET(*control_flags); | |
644 | *control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad); | |
645 | ||
646 | IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, " | |
647 | "%d bytes at %d[%d]:%d\n", | |
648 | get_cmd_string(out_cmd->hdr.cmd), | |
649 | out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence), | |
fc4b6853 | 650 | fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM); |
b481de9c ZY |
651 | |
652 | txq->need_update = 1; | |
6440adb5 CB |
653 | |
654 | /* Increment and update queue's write index */ | |
c54b679d | 655 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
bb8c093b | 656 | ret = iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
657 | |
658 | spin_unlock_irqrestore(&priv->hcmd_lock, flags); | |
659 | return ret ? ret : idx; | |
660 | } | |
661 | ||
bb8c093b | 662 | static int iwl3945_send_cmd_async(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
663 | { |
664 | int ret; | |
665 | ||
666 | BUG_ON(!(cmd->meta.flags & CMD_ASYNC)); | |
667 | ||
668 | /* An asynchronous command can not expect an SKB to be set. */ | |
669 | BUG_ON(cmd->meta.flags & CMD_WANT_SKB); | |
670 | ||
671 | /* An asynchronous command MUST have a callback. */ | |
672 | BUG_ON(!cmd->meta.u.callback); | |
673 | ||
674 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
675 | return -EBUSY; | |
676 | ||
bb8c093b | 677 | ret = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c | 678 | if (ret < 0) { |
bb8c093b | 679 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
680 | get_cmd_string(cmd->id), ret); |
681 | return ret; | |
682 | } | |
683 | return 0; | |
684 | } | |
685 | ||
bb8c093b | 686 | static int iwl3945_send_cmd_sync(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
687 | { |
688 | int cmd_idx; | |
689 | int ret; | |
b481de9c ZY |
690 | |
691 | BUG_ON(cmd->meta.flags & CMD_ASYNC); | |
692 | ||
693 | /* A synchronous command can not have a callback set. */ | |
694 | BUG_ON(cmd->meta.u.callback != NULL); | |
695 | ||
e5472978 | 696 | if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status)) { |
b481de9c ZY |
697 | IWL_ERROR("Error sending %s: Already sending a host command\n", |
698 | get_cmd_string(cmd->id)); | |
e5472978 TW |
699 | ret = -EBUSY; |
700 | goto out; | |
b481de9c ZY |
701 | } |
702 | ||
703 | set_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
704 | ||
705 | if (cmd->meta.flags & CMD_WANT_SKB) | |
706 | cmd->meta.source = &cmd->meta; | |
707 | ||
bb8c093b | 708 | cmd_idx = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c ZY |
709 | if (cmd_idx < 0) { |
710 | ret = cmd_idx; | |
bb8c093b | 711 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
712 | get_cmd_string(cmd->id), ret); |
713 | goto out; | |
714 | } | |
715 | ||
716 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
717 | !test_bit(STATUS_HCMD_ACTIVE, &priv->status), | |
718 | HOST_COMPLETE_TIMEOUT); | |
719 | if (!ret) { | |
720 | if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) { | |
721 | IWL_ERROR("Error sending %s: time out after %dms.\n", | |
722 | get_cmd_string(cmd->id), | |
723 | jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); | |
724 | ||
725 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
726 | ret = -ETIMEDOUT; | |
727 | goto cancel; | |
728 | } | |
729 | } | |
730 | ||
731 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
732 | IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n", | |
733 | get_cmd_string(cmd->id)); | |
734 | ret = -ECANCELED; | |
735 | goto fail; | |
736 | } | |
737 | if (test_bit(STATUS_FW_ERROR, &priv->status)) { | |
738 | IWL_DEBUG_INFO("Command %s failed: FW Error\n", | |
739 | get_cmd_string(cmd->id)); | |
740 | ret = -EIO; | |
741 | goto fail; | |
742 | } | |
743 | if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) { | |
744 | IWL_ERROR("Error: Response NULL in '%s'\n", | |
745 | get_cmd_string(cmd->id)); | |
746 | ret = -EIO; | |
747 | goto out; | |
748 | } | |
749 | ||
750 | ret = 0; | |
751 | goto out; | |
752 | ||
753 | cancel: | |
754 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
bb8c093b | 755 | struct iwl3945_cmd *qcmd; |
b481de9c ZY |
756 | |
757 | /* Cancel the CMD_WANT_SKB flag for the cmd in the | |
758 | * TX cmd queue. Otherwise in case the cmd comes | |
759 | * in later, it will possibly set an invalid | |
760 | * address (cmd->meta.source). */ | |
761 | qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx]; | |
762 | qcmd->meta.flags &= ~CMD_WANT_SKB; | |
763 | } | |
764 | fail: | |
765 | if (cmd->meta.u.skb) { | |
766 | dev_kfree_skb_any(cmd->meta.u.skb); | |
767 | cmd->meta.u.skb = NULL; | |
768 | } | |
769 | out: | |
e5472978 | 770 | clear_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status); |
b481de9c ZY |
771 | return ret; |
772 | } | |
773 | ||
bb8c093b | 774 | int iwl3945_send_cmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 775 | { |
b481de9c | 776 | if (cmd->meta.flags & CMD_ASYNC) |
bb8c093b | 777 | return iwl3945_send_cmd_async(priv, cmd); |
b481de9c | 778 | |
bb8c093b | 779 | return iwl3945_send_cmd_sync(priv, cmd); |
b481de9c ZY |
780 | } |
781 | ||
bb8c093b | 782 | int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len, const void *data) |
b481de9c | 783 | { |
bb8c093b | 784 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
785 | .id = id, |
786 | .len = len, | |
787 | .data = data, | |
788 | }; | |
789 | ||
bb8c093b | 790 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
791 | } |
792 | ||
bb8c093b | 793 | static int __must_check iwl3945_send_cmd_u32(struct iwl3945_priv *priv, u8 id, u32 val) |
b481de9c | 794 | { |
bb8c093b | 795 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
796 | .id = id, |
797 | .len = sizeof(val), | |
798 | .data = &val, | |
799 | }; | |
800 | ||
bb8c093b | 801 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
802 | } |
803 | ||
bb8c093b | 804 | int iwl3945_send_statistics_request(struct iwl3945_priv *priv) |
b481de9c | 805 | { |
bb8c093b | 806 | return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0); |
b481de9c ZY |
807 | } |
808 | ||
b481de9c | 809 | /** |
bb8c093b | 810 | * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON |
8318d78a JB |
811 | * @band: 2.4 or 5 GHz band |
812 | * @channel: Any channel valid for the requested band | |
b481de9c | 813 | |
8318d78a | 814 | * In addition to setting the staging RXON, priv->band is also set. |
b481de9c ZY |
815 | * |
816 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
8318d78a | 817 | * in the staging RXON flag structure based on the band |
b481de9c | 818 | */ |
8318d78a JB |
819 | static int iwl3945_set_rxon_channel(struct iwl3945_priv *priv, |
820 | enum ieee80211_band band, | |
821 | u16 channel) | |
b481de9c | 822 | { |
8318d78a | 823 | if (!iwl3945_get_channel_info(priv, band, channel)) { |
b481de9c | 824 | IWL_DEBUG_INFO("Could not set channel to %d [%d]\n", |
8318d78a | 825 | channel, band); |
b481de9c ZY |
826 | return -EINVAL; |
827 | } | |
828 | ||
829 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && | |
8318d78a | 830 | (priv->band == band)) |
b481de9c ZY |
831 | return 0; |
832 | ||
833 | priv->staging_rxon.channel = cpu_to_le16(channel); | |
8318d78a | 834 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
835 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; |
836 | else | |
837 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
838 | ||
8318d78a | 839 | priv->band = band; |
b481de9c | 840 | |
8318d78a | 841 | IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band); |
b481de9c ZY |
842 | |
843 | return 0; | |
844 | } | |
845 | ||
846 | /** | |
bb8c093b | 847 | * iwl3945_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
848 | * |
849 | * NOTE: This is really only useful during development and can eventually | |
850 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
851 | * making changes | |
852 | */ | |
bb8c093b | 853 | static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c ZY |
854 | { |
855 | int error = 0; | |
856 | int counter = 1; | |
857 | ||
858 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
859 | error |= le32_to_cpu(rxon->flags & | |
860 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
861 | RXON_FLG_RADAR_DETECT_MSK)); | |
862 | if (error) | |
863 | IWL_WARNING("check 24G fields %d | %d\n", | |
864 | counter++, error); | |
865 | } else { | |
866 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
867 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
868 | if (error) | |
869 | IWL_WARNING("check 52 fields %d | %d\n", | |
870 | counter++, error); | |
871 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
872 | if (error) | |
873 | IWL_WARNING("check 52 CCK %d | %d\n", | |
874 | counter++, error); | |
875 | } | |
876 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
877 | if (error) | |
878 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
879 | ||
880 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
881 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
882 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
883 | if (error) | |
884 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
885 | ||
886 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
887 | if (error) | |
888 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
889 | ||
890 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
891 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
892 | if (error) | |
893 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
894 | counter++, error); | |
895 | ||
896 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
897 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
898 | if (error) | |
899 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
900 | counter++, error); | |
901 | ||
902 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
903 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
904 | if (error) | |
905 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
906 | counter++, error); | |
907 | ||
908 | if ((rxon->flags & RXON_FLG_DIS_DIV_MSK)) | |
909 | error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK | | |
910 | RXON_FLG_ANT_A_MSK)) == 0); | |
911 | if (error) | |
912 | IWL_WARNING("check antenna %d %d\n", counter++, error); | |
913 | ||
914 | if (error) | |
915 | IWL_WARNING("Tuning to channel %d\n", | |
916 | le16_to_cpu(rxon->channel)); | |
917 | ||
918 | if (error) { | |
bb8c093b | 919 | IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
920 | return -1; |
921 | } | |
922 | return 0; | |
923 | } | |
924 | ||
925 | /** | |
9fbab516 | 926 | * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 927 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 928 | * |
9fbab516 BC |
929 | * If the RXON structure is changing enough to require a new tune, |
930 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
931 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 932 | */ |
bb8c093b | 933 | static int iwl3945_full_rxon_required(struct iwl3945_priv *priv) |
b481de9c ZY |
934 | { |
935 | ||
936 | /* These items are only settable from the full RXON command */ | |
5d1e2325 | 937 | if (!(iwl3945_is_associated(priv)) || |
b481de9c ZY |
938 | compare_ether_addr(priv->staging_rxon.bssid_addr, |
939 | priv->active_rxon.bssid_addr) || | |
940 | compare_ether_addr(priv->staging_rxon.node_addr, | |
941 | priv->active_rxon.node_addr) || | |
942 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
943 | priv->active_rxon.wlap_bssid_addr) || | |
944 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
945 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
946 | (priv->staging_rxon.air_propagation != | |
947 | priv->active_rxon.air_propagation) || | |
948 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
949 | return 1; | |
950 | ||
951 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
952 | * be updated with the RXON_ASSOC command -- however only some | |
953 | * flag transitions are allowed using RXON_ASSOC */ | |
954 | ||
955 | /* Check if we are not switching bands */ | |
956 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
957 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
958 | return 1; | |
959 | ||
960 | /* Check if we are switching association toggle */ | |
961 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
962 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
963 | return 1; | |
964 | ||
965 | return 0; | |
966 | } | |
967 | ||
bb8c093b | 968 | static int iwl3945_send_rxon_assoc(struct iwl3945_priv *priv) |
b481de9c ZY |
969 | { |
970 | int rc = 0; | |
bb8c093b CH |
971 | struct iwl3945_rx_packet *res = NULL; |
972 | struct iwl3945_rxon_assoc_cmd rxon_assoc; | |
973 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
974 | .id = REPLY_RXON_ASSOC, |
975 | .len = sizeof(rxon_assoc), | |
976 | .meta.flags = CMD_WANT_SKB, | |
977 | .data = &rxon_assoc, | |
978 | }; | |
bb8c093b CH |
979 | const struct iwl3945_rxon_cmd *rxon1 = &priv->staging_rxon; |
980 | const struct iwl3945_rxon_cmd *rxon2 = &priv->active_rxon; | |
b481de9c ZY |
981 | |
982 | if ((rxon1->flags == rxon2->flags) && | |
983 | (rxon1->filter_flags == rxon2->filter_flags) && | |
984 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
985 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
986 | IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n"); | |
987 | return 0; | |
988 | } | |
989 | ||
990 | rxon_assoc.flags = priv->staging_rxon.flags; | |
991 | rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; | |
992 | rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; | |
993 | rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; | |
994 | rxon_assoc.reserved = 0; | |
995 | ||
bb8c093b | 996 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
997 | if (rc) |
998 | return rc; | |
999 | ||
bb8c093b | 1000 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1001 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1002 | IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n"); | |
1003 | rc = -EIO; | |
1004 | } | |
1005 | ||
1006 | priv->alloc_rxb_skb--; | |
1007 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1008 | ||
1009 | return rc; | |
1010 | } | |
1011 | ||
1012 | /** | |
bb8c093b | 1013 | * iwl3945_commit_rxon - commit staging_rxon to hardware |
b481de9c | 1014 | * |
01ebd063 | 1015 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
1016 | * the active_rxon structure is updated with the new data. This |
1017 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
1018 | * a HW tune is required based on the RXON structure changes. | |
1019 | */ | |
bb8c093b | 1020 | static int iwl3945_commit_rxon(struct iwl3945_priv *priv) |
b481de9c ZY |
1021 | { |
1022 | /* cast away the const for active_rxon in this function */ | |
bb8c093b | 1023 | struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
b481de9c ZY |
1024 | int rc = 0; |
1025 | ||
bb8c093b | 1026 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
1027 | return -1; |
1028 | ||
1029 | /* always get timestamp with Rx frame */ | |
1030 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
1031 | ||
1032 | /* select antenna */ | |
1033 | priv->staging_rxon.flags &= | |
1034 | ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); | |
1035 | priv->staging_rxon.flags |= iwl3945_get_antenna_flags(priv); | |
1036 | ||
bb8c093b | 1037 | rc = iwl3945_check_rxon_cmd(&priv->staging_rxon); |
b481de9c ZY |
1038 | if (rc) { |
1039 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); | |
1040 | return -EINVAL; | |
1041 | } | |
1042 | ||
1043 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 1044 | * iwl3945_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 1045 | * and other flags for the current radio configuration. */ |
bb8c093b CH |
1046 | if (!iwl3945_full_rxon_required(priv)) { |
1047 | rc = iwl3945_send_rxon_assoc(priv); | |
b481de9c ZY |
1048 | if (rc) { |
1049 | IWL_ERROR("Error setting RXON_ASSOC " | |
1050 | "configuration (%d).\n", rc); | |
1051 | return rc; | |
1052 | } | |
1053 | ||
1054 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | /* If we are currently associated and the new config requires | |
1060 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
1061 | * we must clear the associated from the active configuration | |
1062 | * before we apply the new config */ | |
bb8c093b | 1063 | if (iwl3945_is_associated(priv) && |
b481de9c ZY |
1064 | (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) { |
1065 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); | |
1066 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1067 | ||
bb8c093b CH |
1068 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1069 | sizeof(struct iwl3945_rxon_cmd), | |
b481de9c ZY |
1070 | &priv->active_rxon); |
1071 | ||
1072 | /* If the mask clearing failed then we set | |
1073 | * active_rxon back to what it was previously */ | |
1074 | if (rc) { | |
1075 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
1076 | IWL_ERROR("Error clearing ASSOC_MSK on current " | |
1077 | "configuration (%d).\n", rc); | |
1078 | return rc; | |
1079 | } | |
b481de9c ZY |
1080 | } |
1081 | ||
1082 | IWL_DEBUG_INFO("Sending RXON\n" | |
1083 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
1084 | "* channel = %d\n" | |
e174961c | 1085 | "* bssid = %pM\n", |
b481de9c ZY |
1086 | ((priv->staging_rxon.filter_flags & |
1087 | RXON_FILTER_ASSOC_MSK) ? "" : "out"), | |
1088 | le16_to_cpu(priv->staging_rxon.channel), | |
e174961c | 1089 | priv->staging_rxon.bssid_addr); |
b481de9c ZY |
1090 | |
1091 | /* Apply the new configuration */ | |
bb8c093b CH |
1092 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1093 | sizeof(struct iwl3945_rxon_cmd), &priv->staging_rxon); | |
b481de9c ZY |
1094 | if (rc) { |
1095 | IWL_ERROR("Error setting new configuration (%d).\n", rc); | |
1096 | return rc; | |
1097 | } | |
1098 | ||
1099 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1100 | ||
bb8c093b | 1101 | iwl3945_clear_stations_table(priv); |
556f8db7 | 1102 | |
b481de9c ZY |
1103 | /* If we issue a new RXON command which required a tune then we must |
1104 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
bb8c093b | 1105 | rc = iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
1106 | if (rc) { |
1107 | IWL_ERROR("Error setting Tx power (%d).\n", rc); | |
1108 | return rc; | |
1109 | } | |
1110 | ||
1111 | /* Add the broadcast address so we can send broadcast frames */ | |
bb8c093b | 1112 | if (iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0) == |
b481de9c ZY |
1113 | IWL_INVALID_STATION) { |
1114 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); | |
1115 | return -EIO; | |
1116 | } | |
1117 | ||
1118 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
1119 | * add the IWL_AP_ID to the station rate table */ | |
bb8c093b | 1120 | if (iwl3945_is_associated(priv) && |
05c914fe | 1121 | (priv->iw_mode == NL80211_IFTYPE_STATION)) |
bb8c093b | 1122 | if (iwl3945_add_station(priv, priv->active_rxon.bssid_addr, 1, 0) |
b481de9c ZY |
1123 | == IWL_INVALID_STATION) { |
1124 | IWL_ERROR("Error adding AP address for transmit.\n"); | |
1125 | return -EIO; | |
1126 | } | |
1127 | ||
8318d78a | 1128 | /* Init the hardware's rate fallback order based on the band */ |
b481de9c ZY |
1129 | rc = iwl3945_init_hw_rate_table(priv); |
1130 | if (rc) { | |
1131 | IWL_ERROR("Error setting HW rate table: %02X\n", rc); | |
1132 | return -EIO; | |
1133 | } | |
1134 | ||
1135 | return 0; | |
1136 | } | |
1137 | ||
bb8c093b | 1138 | static int iwl3945_send_bt_config(struct iwl3945_priv *priv) |
b481de9c | 1139 | { |
bb8c093b | 1140 | struct iwl3945_bt_cmd bt_cmd = { |
b481de9c ZY |
1141 | .flags = 3, |
1142 | .lead_time = 0xAA, | |
1143 | .max_kill = 1, | |
1144 | .kill_ack_mask = 0, | |
1145 | .kill_cts_mask = 0, | |
1146 | }; | |
1147 | ||
bb8c093b CH |
1148 | return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
1149 | sizeof(struct iwl3945_bt_cmd), &bt_cmd); | |
b481de9c ZY |
1150 | } |
1151 | ||
bb8c093b | 1152 | static int iwl3945_send_scan_abort(struct iwl3945_priv *priv) |
b481de9c ZY |
1153 | { |
1154 | int rc = 0; | |
bb8c093b CH |
1155 | struct iwl3945_rx_packet *res; |
1156 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
1157 | .id = REPLY_SCAN_ABORT_CMD, |
1158 | .meta.flags = CMD_WANT_SKB, | |
1159 | }; | |
1160 | ||
1161 | /* If there isn't a scan actively going on in the hardware | |
1162 | * then we are in between scan bands and not actually | |
1163 | * actively scanning, so don't send the abort command */ | |
1164 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1165 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1166 | return 0; | |
1167 | } | |
1168 | ||
bb8c093b | 1169 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1170 | if (rc) { |
1171 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1172 | return rc; | |
1173 | } | |
1174 | ||
bb8c093b | 1175 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1176 | if (res->u.status != CAN_ABORT_STATUS) { |
1177 | /* The scan abort will return 1 for success or | |
1178 | * 2 for "failure". A failure condition can be | |
1179 | * due to simply not being in an active scan which | |
1180 | * can occur if we send the scan abort before we | |
1181 | * the microcode has notified us that a scan is | |
1182 | * completed. */ | |
1183 | IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); | |
1184 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1185 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
1186 | } | |
1187 | ||
1188 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1189 | ||
1190 | return rc; | |
1191 | } | |
1192 | ||
bb8c093b CH |
1193 | static int iwl3945_card_state_sync_callback(struct iwl3945_priv *priv, |
1194 | struct iwl3945_cmd *cmd, | |
b481de9c ZY |
1195 | struct sk_buff *skb) |
1196 | { | |
1197 | return 1; | |
1198 | } | |
1199 | ||
1200 | /* | |
1201 | * CARD_STATE_CMD | |
1202 | * | |
9fbab516 | 1203 | * Use: Sets the device's internal card state to enable, disable, or halt |
b481de9c ZY |
1204 | * |
1205 | * When in the 'enable' state the card operates as normal. | |
1206 | * When in the 'disable' state, the card enters into a low power mode. | |
1207 | * When in the 'halt' state, the card is shut down and must be fully | |
1208 | * restarted to come back on. | |
1209 | */ | |
bb8c093b | 1210 | static int iwl3945_send_card_state(struct iwl3945_priv *priv, u32 flags, u8 meta_flag) |
b481de9c | 1211 | { |
bb8c093b | 1212 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
1213 | .id = REPLY_CARD_STATE_CMD, |
1214 | .len = sizeof(u32), | |
1215 | .data = &flags, | |
1216 | .meta.flags = meta_flag, | |
1217 | }; | |
1218 | ||
1219 | if (meta_flag & CMD_ASYNC) | |
bb8c093b | 1220 | cmd.meta.u.callback = iwl3945_card_state_sync_callback; |
b481de9c | 1221 | |
bb8c093b | 1222 | return iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1223 | } |
1224 | ||
bb8c093b CH |
1225 | static int iwl3945_add_sta_sync_callback(struct iwl3945_priv *priv, |
1226 | struct iwl3945_cmd *cmd, struct sk_buff *skb) | |
b481de9c | 1227 | { |
bb8c093b | 1228 | struct iwl3945_rx_packet *res = NULL; |
b481de9c ZY |
1229 | |
1230 | if (!skb) { | |
1231 | IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n"); | |
1232 | return 1; | |
1233 | } | |
1234 | ||
bb8c093b | 1235 | res = (struct iwl3945_rx_packet *)skb->data; |
b481de9c ZY |
1236 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1237 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1238 | res->hdr.flags); | |
1239 | return 1; | |
1240 | } | |
1241 | ||
1242 | switch (res->u.add_sta.status) { | |
1243 | case ADD_STA_SUCCESS_MSK: | |
1244 | break; | |
1245 | default: | |
1246 | break; | |
1247 | } | |
1248 | ||
1249 | /* We didn't cache the SKB; let the caller free it */ | |
1250 | return 1; | |
1251 | } | |
1252 | ||
bb8c093b CH |
1253 | int iwl3945_send_add_station(struct iwl3945_priv *priv, |
1254 | struct iwl3945_addsta_cmd *sta, u8 flags) | |
b481de9c | 1255 | { |
bb8c093b | 1256 | struct iwl3945_rx_packet *res = NULL; |
b481de9c | 1257 | int rc = 0; |
bb8c093b | 1258 | struct iwl3945_host_cmd cmd = { |
b481de9c | 1259 | .id = REPLY_ADD_STA, |
bb8c093b | 1260 | .len = sizeof(struct iwl3945_addsta_cmd), |
b481de9c ZY |
1261 | .meta.flags = flags, |
1262 | .data = sta, | |
1263 | }; | |
1264 | ||
1265 | if (flags & CMD_ASYNC) | |
bb8c093b | 1266 | cmd.meta.u.callback = iwl3945_add_sta_sync_callback; |
b481de9c ZY |
1267 | else |
1268 | cmd.meta.flags |= CMD_WANT_SKB; | |
1269 | ||
bb8c093b | 1270 | rc = iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1271 | |
1272 | if (rc || (flags & CMD_ASYNC)) | |
1273 | return rc; | |
1274 | ||
bb8c093b | 1275 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1276 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1277 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1278 | res->hdr.flags); | |
1279 | rc = -EIO; | |
1280 | } | |
1281 | ||
1282 | if (rc == 0) { | |
1283 | switch (res->u.add_sta.status) { | |
1284 | case ADD_STA_SUCCESS_MSK: | |
1285 | IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n"); | |
1286 | break; | |
1287 | default: | |
1288 | rc = -EIO; | |
1289 | IWL_WARNING("REPLY_ADD_STA failed\n"); | |
1290 | break; | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | priv->alloc_rxb_skb--; | |
1295 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1296 | ||
1297 | return rc; | |
1298 | } | |
1299 | ||
bb8c093b | 1300 | static int iwl3945_update_sta_key_info(struct iwl3945_priv *priv, |
b481de9c ZY |
1301 | struct ieee80211_key_conf *keyconf, |
1302 | u8 sta_id) | |
1303 | { | |
1304 | unsigned long flags; | |
1305 | __le16 key_flags = 0; | |
1306 | ||
1307 | switch (keyconf->alg) { | |
1308 | case ALG_CCMP: | |
1309 | key_flags |= STA_KEY_FLG_CCMP; | |
1310 | key_flags |= cpu_to_le16( | |
1311 | keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
1312 | key_flags &= ~STA_KEY_FLG_INVALID; | |
1313 | break; | |
1314 | case ALG_TKIP: | |
1315 | case ALG_WEP: | |
b481de9c ZY |
1316 | default: |
1317 | return -EINVAL; | |
1318 | } | |
1319 | spin_lock_irqsave(&priv->sta_lock, flags); | |
1320 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; | |
1321 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
1322 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, | |
1323 | keyconf->keylen); | |
1324 | ||
1325 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, | |
1326 | keyconf->keylen); | |
1327 | priv->stations[sta_id].sta.key.key_flags = key_flags; | |
1328 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1329 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1330 | ||
1331 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1332 | ||
1333 | IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n"); | |
bb8c093b | 1334 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1335 | return 0; |
1336 | } | |
1337 | ||
bb8c093b | 1338 | static int iwl3945_clear_sta_key_info(struct iwl3945_priv *priv, u8 sta_id) |
b481de9c ZY |
1339 | { |
1340 | unsigned long flags; | |
1341 | ||
1342 | spin_lock_irqsave(&priv->sta_lock, flags); | |
bb8c093b CH |
1343 | memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key)); |
1344 | memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl3945_keyinfo)); | |
b481de9c ZY |
1345 | priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
1346 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1347 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1348 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1349 | ||
1350 | IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n"); | |
bb8c093b | 1351 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1352 | return 0; |
1353 | } | |
1354 | ||
bb8c093b | 1355 | static void iwl3945_clear_free_frames(struct iwl3945_priv *priv) |
b481de9c ZY |
1356 | { |
1357 | struct list_head *element; | |
1358 | ||
1359 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
1360 | priv->frames_count); | |
1361 | ||
1362 | while (!list_empty(&priv->free_frames)) { | |
1363 | element = priv->free_frames.next; | |
1364 | list_del(element); | |
bb8c093b | 1365 | kfree(list_entry(element, struct iwl3945_frame, list)); |
b481de9c ZY |
1366 | priv->frames_count--; |
1367 | } | |
1368 | ||
1369 | if (priv->frames_count) { | |
1370 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
1371 | priv->frames_count); | |
1372 | priv->frames_count = 0; | |
1373 | } | |
1374 | } | |
1375 | ||
bb8c093b | 1376 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl3945_priv *priv) |
b481de9c | 1377 | { |
bb8c093b | 1378 | struct iwl3945_frame *frame; |
b481de9c ZY |
1379 | struct list_head *element; |
1380 | if (list_empty(&priv->free_frames)) { | |
1381 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
1382 | if (!frame) { | |
1383 | IWL_ERROR("Could not allocate frame!\n"); | |
1384 | return NULL; | |
1385 | } | |
1386 | ||
1387 | priv->frames_count++; | |
1388 | return frame; | |
1389 | } | |
1390 | ||
1391 | element = priv->free_frames.next; | |
1392 | list_del(element); | |
bb8c093b | 1393 | return list_entry(element, struct iwl3945_frame, list); |
b481de9c ZY |
1394 | } |
1395 | ||
bb8c093b | 1396 | static void iwl3945_free_frame(struct iwl3945_priv *priv, struct iwl3945_frame *frame) |
b481de9c ZY |
1397 | { |
1398 | memset(frame, 0, sizeof(*frame)); | |
1399 | list_add(&frame->list, &priv->free_frames); | |
1400 | } | |
1401 | ||
bb8c093b | 1402 | unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv, |
b481de9c ZY |
1403 | struct ieee80211_hdr *hdr, |
1404 | const u8 *dest, int left) | |
1405 | { | |
1406 | ||
bb8c093b | 1407 | if (!iwl3945_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
1408 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
1409 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
1410 | return 0; |
1411 | ||
1412 | if (priv->ibss_beacon->len > left) | |
1413 | return 0; | |
1414 | ||
1415 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
1416 | ||
1417 | return priv->ibss_beacon->len; | |
1418 | } | |
1419 | ||
c24f0817 | 1420 | static u8 iwl3945_rate_get_lowest_plcp(struct iwl3945_priv *priv) |
b481de9c ZY |
1421 | { |
1422 | u8 i; | |
c24f0817 KA |
1423 | int rate_mask; |
1424 | ||
1425 | /* Set rate mask*/ | |
1426 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
dbce56a4 | 1427 | rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK; |
c24f0817 | 1428 | else |
dbce56a4 | 1429 | rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK; |
b481de9c ZY |
1430 | |
1431 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; | |
bb8c093b | 1432 | i = iwl3945_rates[i].next_ieee) { |
b481de9c | 1433 | if (rate_mask & (1 << i)) |
bb8c093b | 1434 | return iwl3945_rates[i].plcp; |
b481de9c ZY |
1435 | } |
1436 | ||
c24f0817 KA |
1437 | /* No valid rate was found. Assign the lowest one */ |
1438 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
1439 | return IWL_RATE_1M_PLCP; | |
1440 | else | |
1441 | return IWL_RATE_6M_PLCP; | |
b481de9c ZY |
1442 | } |
1443 | ||
bb8c093b | 1444 | static int iwl3945_send_beacon_cmd(struct iwl3945_priv *priv) |
b481de9c | 1445 | { |
bb8c093b | 1446 | struct iwl3945_frame *frame; |
b481de9c ZY |
1447 | unsigned int frame_size; |
1448 | int rc; | |
1449 | u8 rate; | |
1450 | ||
bb8c093b | 1451 | frame = iwl3945_get_free_frame(priv); |
b481de9c ZY |
1452 | |
1453 | if (!frame) { | |
1454 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
1455 | "command.\n"); | |
1456 | return -ENOMEM; | |
1457 | } | |
1458 | ||
c24f0817 | 1459 | rate = iwl3945_rate_get_lowest_plcp(priv); |
b481de9c | 1460 | |
bb8c093b | 1461 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 1462 | |
bb8c093b | 1463 | rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
1464 | &frame->u.cmd[0]); |
1465 | ||
bb8c093b | 1466 | iwl3945_free_frame(priv, frame); |
b481de9c ZY |
1467 | |
1468 | return rc; | |
1469 | } | |
1470 | ||
1471 | /****************************************************************************** | |
1472 | * | |
1473 | * EEPROM related functions | |
1474 | * | |
1475 | ******************************************************************************/ | |
1476 | ||
bb8c093b | 1477 | static void get_eeprom_mac(struct iwl3945_priv *priv, u8 *mac) |
b481de9c ZY |
1478 | { |
1479 | memcpy(mac, priv->eeprom.mac_address, 6); | |
1480 | } | |
1481 | ||
74a3a250 RC |
1482 | /* |
1483 | * Clear the OWNER_MSK, to establish driver (instead of uCode running on | |
1484 | * embedded controller) as EEPROM reader; each read is a series of pulses | |
1485 | * to/from the EEPROM chip, not a single event, so even reads could conflict | |
1486 | * if they weren't arbitrated by some ownership mechanism. Here, the driver | |
1487 | * simply claims ownership, which should be safe when this function is called | |
1488 | * (i.e. before loading uCode!). | |
1489 | */ | |
1490 | static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv) | |
1491 | { | |
1492 | _iwl3945_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); | |
1493 | return 0; | |
1494 | } | |
1495 | ||
b481de9c | 1496 | /** |
bb8c093b | 1497 | * iwl3945_eeprom_init - read EEPROM contents |
b481de9c | 1498 | * |
6440adb5 | 1499 | * Load the EEPROM contents from adapter into priv->eeprom |
b481de9c ZY |
1500 | * |
1501 | * NOTE: This routine uses the non-debug IO access functions. | |
1502 | */ | |
bb8c093b | 1503 | int iwl3945_eeprom_init(struct iwl3945_priv *priv) |
b481de9c | 1504 | { |
58ff6d4d | 1505 | u16 *e = (u16 *)&priv->eeprom; |
bb8c093b | 1506 | u32 gp = iwl3945_read32(priv, CSR_EEPROM_GP); |
b481de9c | 1507 | int sz = sizeof(priv->eeprom); |
3d5717ad | 1508 | int ret; |
b481de9c ZY |
1509 | u16 addr; |
1510 | ||
1511 | /* The EEPROM structure has several padding buffers within it | |
1512 | * and when adding new EEPROM maps is subject to programmer errors | |
1513 | * which may be very difficult to identify without explicitly | |
1514 | * checking the resulting size of the eeprom map. */ | |
1515 | BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE); | |
1516 | ||
1517 | if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) { | |
6f147926 | 1518 | IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x\n", gp); |
b481de9c ZY |
1519 | return -ENOENT; |
1520 | } | |
1521 | ||
6440adb5 | 1522 | /* Make sure driver (instead of uCode) is allowed to read EEPROM */ |
3d5717ad ZY |
1523 | ret = iwl3945_eeprom_acquire_semaphore(priv); |
1524 | if (ret < 0) { | |
91e17473 | 1525 | IWL_ERROR("Failed to acquire EEPROM semaphore.\n"); |
b481de9c ZY |
1526 | return -ENOENT; |
1527 | } | |
1528 | ||
1529 | /* eeprom is an array of 16bit values */ | |
1530 | for (addr = 0; addr < sz; addr += sizeof(u16)) { | |
3d5717ad | 1531 | u32 r; |
b481de9c | 1532 | |
3d5717ad ZY |
1533 | _iwl3945_write32(priv, CSR_EEPROM_REG, |
1534 | CSR_EEPROM_REG_MSK_ADDR & (addr << 1)); | |
1535 | _iwl3945_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD); | |
1536 | ret = iwl3945_poll_direct_bit(priv, CSR_EEPROM_REG, | |
1537 | CSR_EEPROM_REG_READ_VALID_MSK, | |
1538 | IWL_EEPROM_ACCESS_TIMEOUT); | |
1539 | if (ret < 0) { | |
6f147926 | 1540 | IWL_ERROR("Time out reading EEPROM[%d]\n", addr); |
3d5717ad | 1541 | return ret; |
b481de9c | 1542 | } |
3d5717ad ZY |
1543 | |
1544 | r = _iwl3945_read_direct32(priv, CSR_EEPROM_REG); | |
58ff6d4d | 1545 | e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16)); |
b481de9c ZY |
1546 | } |
1547 | ||
1548 | return 0; | |
1549 | } | |
1550 | ||
bb8c093b | 1551 | static void iwl3945_unset_hw_setting(struct iwl3945_priv *priv) |
b481de9c ZY |
1552 | { |
1553 | if (priv->hw_setting.shared_virt) | |
1554 | pci_free_consistent(priv->pci_dev, | |
bb8c093b | 1555 | sizeof(struct iwl3945_shared), |
b481de9c ZY |
1556 | priv->hw_setting.shared_virt, |
1557 | priv->hw_setting.shared_phys); | |
1558 | } | |
1559 | ||
1560 | /** | |
bb8c093b | 1561 | * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
1562 | * |
1563 | * return : set the bit for each supported rate insert in ie | |
1564 | */ | |
bb8c093b | 1565 | static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 1566 | u16 basic_rate, int *left) |
b481de9c ZY |
1567 | { |
1568 | u16 ret_rates = 0, bit; | |
1569 | int i; | |
c7c46676 TW |
1570 | u8 *cnt = ie; |
1571 | u8 *rates = ie + 1; | |
b481de9c ZY |
1572 | |
1573 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
1574 | if (bit & supported_rate) { | |
1575 | ret_rates |= bit; | |
bb8c093b | 1576 | rates[*cnt] = iwl3945_rates[i].ieee | |
c7c46676 TW |
1577 | ((bit & basic_rate) ? 0x80 : 0x00); |
1578 | (*cnt)++; | |
1579 | (*left)--; | |
1580 | if ((*left <= 0) || | |
1581 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
1582 | break; |
1583 | } | |
1584 | } | |
1585 | ||
1586 | return ret_rates; | |
1587 | } | |
1588 | ||
1589 | /** | |
bb8c093b | 1590 | * iwl3945_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 1591 | */ |
bb8c093b | 1592 | static u16 iwl3945_fill_probe_req(struct iwl3945_priv *priv, |
b481de9c | 1593 | struct ieee80211_mgmt *frame, |
430cfe95 | 1594 | int left) |
b481de9c ZY |
1595 | { |
1596 | int len = 0; | |
1597 | u8 *pos = NULL; | |
c7c46676 | 1598 | u16 active_rates, ret_rates, cck_rates; |
b481de9c ZY |
1599 | |
1600 | /* Make sure there is enough space for the probe request, | |
1601 | * two mandatory IEs and the data */ | |
1602 | left -= 24; | |
1603 | if (left < 0) | |
1604 | return 0; | |
1605 | len += 24; | |
1606 | ||
1607 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
bb8c093b | 1608 | memcpy(frame->da, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c | 1609 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
bb8c093b | 1610 | memcpy(frame->bssid, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c ZY |
1611 | frame->seq_ctrl = 0; |
1612 | ||
1613 | /* fill in our indirect SSID IE */ | |
1614 | /* ...next IE... */ | |
1615 | ||
1616 | left -= 2; | |
1617 | if (left < 0) | |
1618 | return 0; | |
1619 | len += 2; | |
1620 | pos = &(frame->u.probe_req.variable[0]); | |
1621 | *pos++ = WLAN_EID_SSID; | |
1622 | *pos++ = 0; | |
1623 | ||
b481de9c ZY |
1624 | /* fill in supported rate */ |
1625 | /* ...next IE... */ | |
1626 | left -= 2; | |
1627 | if (left < 0) | |
1628 | return 0; | |
c7c46676 | 1629 | |
b481de9c ZY |
1630 | /* ... fill it in... */ |
1631 | *pos++ = WLAN_EID_SUPP_RATES; | |
1632 | *pos = 0; | |
c7c46676 TW |
1633 | |
1634 | priv->active_rate = priv->rates_mask; | |
1635 | active_rates = priv->active_rate; | |
b481de9c ZY |
1636 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; |
1637 | ||
c7c46676 | 1638 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 1639 | ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates, |
c7c46676 TW |
1640 | priv->active_rate_basic, &left); |
1641 | active_rates &= ~ret_rates; | |
1642 | ||
bb8c093b | 1643 | ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 TW |
1644 | priv->active_rate_basic, &left); |
1645 | active_rates &= ~ret_rates; | |
1646 | ||
b481de9c ZY |
1647 | len += 2 + *pos; |
1648 | pos += (*pos) + 1; | |
c7c46676 | 1649 | if (active_rates == 0) |
b481de9c ZY |
1650 | goto fill_end; |
1651 | ||
1652 | /* fill in supported extended rate */ | |
1653 | /* ...next IE... */ | |
1654 | left -= 2; | |
1655 | if (left < 0) | |
1656 | return 0; | |
1657 | /* ... fill it in... */ | |
1658 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
1659 | *pos = 0; | |
bb8c093b | 1660 | iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 | 1661 | priv->active_rate_basic, &left); |
b481de9c ZY |
1662 | if (*pos > 0) |
1663 | len += 2 + *pos; | |
1664 | ||
1665 | fill_end: | |
1666 | return (u16)len; | |
1667 | } | |
1668 | ||
1669 | /* | |
1670 | * QoS support | |
1671 | */ | |
bb8c093b CH |
1672 | static int iwl3945_send_qos_params_command(struct iwl3945_priv *priv, |
1673 | struct iwl3945_qosparam_cmd *qos) | |
b481de9c ZY |
1674 | { |
1675 | ||
bb8c093b CH |
1676 | return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
1677 | sizeof(struct iwl3945_qosparam_cmd), qos); | |
b481de9c ZY |
1678 | } |
1679 | ||
bb8c093b | 1680 | static void iwl3945_reset_qos(struct iwl3945_priv *priv) |
b481de9c ZY |
1681 | { |
1682 | u16 cw_min = 15; | |
1683 | u16 cw_max = 1023; | |
1684 | u8 aifs = 2; | |
1685 | u8 is_legacy = 0; | |
1686 | unsigned long flags; | |
1687 | int i; | |
1688 | ||
1689 | spin_lock_irqsave(&priv->lock, flags); | |
1690 | priv->qos_data.qos_active = 0; | |
1691 | ||
6d1ef1a3 WT |
1692 | /* QoS always active in AP and ADHOC mode |
1693 | * In STA mode wait for association | |
1694 | */ | |
1695 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC || | |
1696 | priv->iw_mode == NL80211_IFTYPE_AP) | |
1697 | priv->qos_data.qos_active = 1; | |
1698 | else | |
1699 | priv->qos_data.qos_active = 0; | |
1700 | ||
1701 | ||
1702 | /* check for legacy mode */ | |
1703 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC && | |
1704 | (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) || | |
1705 | (priv->iw_mode == NL80211_IFTYPE_STATION && | |
1706 | (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) { | |
b481de9c ZY |
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 | ||
b481de9c ZY |
1778 | spin_lock_irqsave(&priv->lock, flags); |
1779 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
1780 | ||
1781 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
1782 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
1783 | priv->qos_data.def_qos_parm.qos_flags |= | |
1784 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
1785 | ||
1786 | if (priv->qos_data.qos_active) | |
1787 | priv->qos_data.def_qos_parm.qos_flags |= | |
1788 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
1789 | ||
1790 | spin_unlock_irqrestore(&priv->lock, flags); | |
1791 | ||
bb8c093b | 1792 | if (force || iwl3945_is_associated(priv)) { |
a96a27f9 | 1793 | IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n", |
b481de9c ZY |
1794 | priv->qos_data.qos_active); |
1795 | ||
bb8c093b | 1796 | iwl3945_send_qos_params_command(priv, |
b481de9c ZY |
1797 | &(priv->qos_data.def_qos_parm)); |
1798 | } | |
1799 | } | |
1800 | ||
b481de9c ZY |
1801 | /* |
1802 | * Power management (not Tx power!) functions | |
1803 | */ | |
1804 | #define MSEC_TO_USEC 1024 | |
1805 | ||
1806 | #define NOSLP __constant_cpu_to_le32(0) | |
1807 | #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK | |
1808 | #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC) | |
1809 | #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \ | |
1810 | __constant_cpu_to_le32(X1), \ | |
1811 | __constant_cpu_to_le32(X2), \ | |
1812 | __constant_cpu_to_le32(X3), \ | |
1813 | __constant_cpu_to_le32(X4)} | |
1814 | ||
1815 | ||
1816 | /* default power management (not Tx power) table values */ | |
a96a27f9 | 1817 | /* for TIM 0-10 */ |
bb8c093b | 1818 | static struct iwl3945_power_vec_entry range_0[IWL_POWER_AC] = { |
b481de9c ZY |
1819 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1820 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0}, | |
1821 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0}, | |
1822 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0}, | |
1823 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1}, | |
1824 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1} | |
1825 | }; | |
1826 | ||
a96a27f9 | 1827 | /* for TIM > 10 */ |
bb8c093b | 1828 | static struct iwl3945_power_vec_entry range_1[IWL_POWER_AC] = { |
b481de9c ZY |
1829 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1830 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), | |
1831 | SLP_VEC(1, 2, 3, 4, 0xFF)}, 0}, | |
1832 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), | |
1833 | SLP_VEC(2, 4, 6, 7, 0xFF)}, 0}, | |
1834 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), | |
1835 | SLP_VEC(2, 6, 9, 9, 0xFF)}, 0}, | |
1836 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0}, | |
1837 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), | |
1838 | SLP_VEC(4, 7, 10, 10, 0xFF)}, 0} | |
1839 | }; | |
1840 | ||
bb8c093b | 1841 | int iwl3945_power_init_handle(struct iwl3945_priv *priv) |
b481de9c ZY |
1842 | { |
1843 | int rc = 0, i; | |
bb8c093b CH |
1844 | struct iwl3945_power_mgr *pow_data; |
1845 | int size = sizeof(struct iwl3945_power_vec_entry) * IWL_POWER_AC; | |
b481de9c ZY |
1846 | u16 pci_pm; |
1847 | ||
1848 | IWL_DEBUG_POWER("Initialize power \n"); | |
1849 | ||
1850 | pow_data = &(priv->power_data); | |
1851 | ||
1852 | memset(pow_data, 0, sizeof(*pow_data)); | |
1853 | ||
1854 | pow_data->active_index = IWL_POWER_RANGE_0; | |
1855 | pow_data->dtim_val = 0xffff; | |
1856 | ||
1857 | memcpy(&pow_data->pwr_range_0[0], &range_0[0], size); | |
1858 | memcpy(&pow_data->pwr_range_1[0], &range_1[0], size); | |
1859 | ||
1860 | rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm); | |
1861 | if (rc != 0) | |
1862 | return 0; | |
1863 | else { | |
bb8c093b | 1864 | struct iwl3945_powertable_cmd *cmd; |
b481de9c ZY |
1865 | |
1866 | IWL_DEBUG_POWER("adjust power command flags\n"); | |
1867 | ||
1868 | for (i = 0; i < IWL_POWER_AC; i++) { | |
1869 | cmd = &pow_data->pwr_range_0[i].cmd; | |
1870 | ||
1871 | if (pci_pm & 0x1) | |
1872 | cmd->flags &= ~IWL_POWER_PCI_PM_MSK; | |
1873 | else | |
1874 | cmd->flags |= IWL_POWER_PCI_PM_MSK; | |
1875 | } | |
1876 | } | |
1877 | return rc; | |
1878 | } | |
1879 | ||
bb8c093b CH |
1880 | static int iwl3945_update_power_cmd(struct iwl3945_priv *priv, |
1881 | struct iwl3945_powertable_cmd *cmd, u32 mode) | |
b481de9c ZY |
1882 | { |
1883 | int rc = 0, i; | |
1884 | u8 skip; | |
1885 | u32 max_sleep = 0; | |
bb8c093b | 1886 | struct iwl3945_power_vec_entry *range; |
b481de9c | 1887 | u8 period = 0; |
bb8c093b | 1888 | struct iwl3945_power_mgr *pow_data; |
b481de9c ZY |
1889 | |
1890 | if (mode > IWL_POWER_INDEX_5) { | |
1891 | IWL_DEBUG_POWER("Error invalid power mode \n"); | |
1892 | return -1; | |
1893 | } | |
1894 | pow_data = &(priv->power_data); | |
1895 | ||
1896 | if (pow_data->active_index == IWL_POWER_RANGE_0) | |
1897 | range = &pow_data->pwr_range_0[0]; | |
1898 | else | |
1899 | range = &pow_data->pwr_range_1[1]; | |
1900 | ||
bb8c093b | 1901 | memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd)); |
b481de9c ZY |
1902 | |
1903 | #ifdef IWL_MAC80211_DISABLE | |
1904 | if (priv->assoc_network != NULL) { | |
1905 | unsigned long flags; | |
1906 | ||
1907 | period = priv->assoc_network->tim.tim_period; | |
1908 | } | |
1909 | #endif /*IWL_MAC80211_DISABLE */ | |
1910 | skip = range[mode].no_dtim; | |
1911 | ||
1912 | if (period == 0) { | |
1913 | period = 1; | |
1914 | skip = 0; | |
1915 | } | |
1916 | ||
1917 | if (skip == 0) { | |
1918 | max_sleep = period; | |
1919 | cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1920 | } else { | |
1921 | __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]; | |
1922 | max_sleep = (le32_to_cpu(slp_itrvl) / period) * period; | |
1923 | cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
1924 | } | |
1925 | ||
1926 | for (i = 0; i < IWL_POWER_VEC_SIZE; i++) { | |
1927 | if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep) | |
1928 | cmd->sleep_interval[i] = cpu_to_le32(max_sleep); | |
1929 | } | |
1930 | ||
1931 | IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags); | |
1932 | IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout)); | |
1933 | IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout)); | |
1934 | IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n", | |
1935 | le32_to_cpu(cmd->sleep_interval[0]), | |
1936 | le32_to_cpu(cmd->sleep_interval[1]), | |
1937 | le32_to_cpu(cmd->sleep_interval[2]), | |
1938 | le32_to_cpu(cmd->sleep_interval[3]), | |
1939 | le32_to_cpu(cmd->sleep_interval[4])); | |
1940 | ||
1941 | return rc; | |
1942 | } | |
1943 | ||
bb8c093b | 1944 | static int iwl3945_send_power_mode(struct iwl3945_priv *priv, u32 mode) |
b481de9c | 1945 | { |
9a62f73b | 1946 | u32 uninitialized_var(final_mode); |
b481de9c | 1947 | int rc; |
bb8c093b | 1948 | struct iwl3945_powertable_cmd cmd; |
b481de9c ZY |
1949 | |
1950 | /* If on battery, set to 3, | |
01ebd063 | 1951 | * if plugged into AC power, set to CAM ("continuously aware mode"), |
b481de9c ZY |
1952 | * else user level */ |
1953 | switch (mode) { | |
1954 | case IWL_POWER_BATTERY: | |
1955 | final_mode = IWL_POWER_INDEX_3; | |
1956 | break; | |
1957 | case IWL_POWER_AC: | |
1958 | final_mode = IWL_POWER_MODE_CAM; | |
1959 | break; | |
1960 | default: | |
1961 | final_mode = mode; | |
1962 | break; | |
1963 | } | |
1964 | ||
bb8c093b | 1965 | iwl3945_update_power_cmd(priv, &cmd, final_mode); |
b481de9c | 1966 | |
bb8c093b | 1967 | rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd); |
b481de9c ZY |
1968 | |
1969 | if (final_mode == IWL_POWER_MODE_CAM) | |
1970 | clear_bit(STATUS_POWER_PMI, &priv->status); | |
1971 | else | |
1972 | set_bit(STATUS_POWER_PMI, &priv->status); | |
1973 | ||
1974 | return rc; | |
1975 | } | |
1976 | ||
b481de9c | 1977 | /** |
bb8c093b | 1978 | * iwl3945_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
1979 | * |
1980 | * NOTE: priv->mutex is not required before calling this function | |
1981 | */ | |
bb8c093b | 1982 | static int iwl3945_scan_cancel(struct iwl3945_priv *priv) |
b481de9c ZY |
1983 | { |
1984 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1985 | clear_bit(STATUS_SCANNING, &priv->status); | |
1986 | return 0; | |
1987 | } | |
1988 | ||
1989 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1990 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1991 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
1992 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1993 | queue_work(priv->workqueue, &priv->abort_scan); | |
1994 | ||
1995 | } else | |
1996 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
1997 | ||
1998 | return test_bit(STATUS_SCANNING, &priv->status); | |
1999 | } | |
2000 | ||
2001 | return 0; | |
2002 | } | |
2003 | ||
2004 | /** | |
bb8c093b | 2005 | * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
2006 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
2007 | * | |
2008 | * NOTE: priv->mutex must be held before calling this function | |
2009 | */ | |
bb8c093b | 2010 | static int iwl3945_scan_cancel_timeout(struct iwl3945_priv *priv, unsigned long ms) |
b481de9c ZY |
2011 | { |
2012 | unsigned long now = jiffies; | |
2013 | int ret; | |
2014 | ||
bb8c093b | 2015 | ret = iwl3945_scan_cancel(priv); |
b481de9c ZY |
2016 | if (ret && ms) { |
2017 | mutex_unlock(&priv->mutex); | |
2018 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
2019 | test_bit(STATUS_SCANNING, &priv->status)) | |
2020 | msleep(1); | |
2021 | mutex_lock(&priv->mutex); | |
2022 | ||
2023 | return test_bit(STATUS_SCANNING, &priv->status); | |
2024 | } | |
2025 | ||
2026 | return ret; | |
2027 | } | |
2028 | ||
b481de9c ZY |
2029 | #define MAX_UCODE_BEACON_INTERVAL 1024 |
2030 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
2031 | ||
bb8c093b | 2032 | static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
2033 | { |
2034 | u16 new_val = 0; | |
2035 | u16 beacon_factor = 0; | |
2036 | ||
2037 | beacon_factor = | |
2038 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
2039 | / MAX_UCODE_BEACON_INTERVAL; | |
2040 | new_val = beacon_val / beacon_factor; | |
2041 | ||
2042 | return cpu_to_le16(new_val); | |
2043 | } | |
2044 | ||
bb8c093b | 2045 | static void iwl3945_setup_rxon_timing(struct iwl3945_priv *priv) |
b481de9c ZY |
2046 | { |
2047 | u64 interval_tm_unit; | |
2048 | u64 tsf, result; | |
2049 | unsigned long flags; | |
2050 | struct ieee80211_conf *conf = NULL; | |
2051 | u16 beacon_int = 0; | |
2052 | ||
2053 | conf = ieee80211_get_hw_conf(priv->hw); | |
2054 | ||
2055 | spin_lock_irqsave(&priv->lock, flags); | |
2056 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1); | |
2057 | priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0); | |
2058 | ||
2059 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
2060 | ||
2061 | tsf = priv->timestamp1; | |
2062 | tsf = ((tsf << 32) | priv->timestamp0); | |
2063 | ||
2064 | beacon_int = priv->beacon_int; | |
2065 | spin_unlock_irqrestore(&priv->lock, flags); | |
2066 | ||
05c914fe | 2067 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
b481de9c ZY |
2068 | if (beacon_int == 0) { |
2069 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
2070 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
2071 | } else { | |
2072 | priv->rxon_timing.beacon_interval = | |
2073 | cpu_to_le16(beacon_int); | |
2074 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2075 | iwl3945_adjust_beacon_interval( |
b481de9c ZY |
2076 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
2077 | } | |
2078 | ||
2079 | priv->rxon_timing.atim_window = 0; | |
2080 | } else { | |
2081 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2082 | iwl3945_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
2083 | /* TODO: we need to get atim_window from upper stack |
2084 | * for now we set to 0 */ | |
2085 | priv->rxon_timing.atim_window = 0; | |
2086 | } | |
2087 | ||
2088 | interval_tm_unit = | |
2089 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
2090 | result = do_div(tsf, interval_tm_unit); | |
2091 | priv->rxon_timing.beacon_init_val = | |
2092 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
2093 | ||
2094 | IWL_DEBUG_ASSOC | |
2095 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
2096 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
2097 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
2098 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
2099 | } | |
2100 | ||
bb8c093b | 2101 | static int iwl3945_scan_initiate(struct iwl3945_priv *priv) |
b481de9c | 2102 | { |
bb8c093b | 2103 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
2104 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
2105 | return -EIO; | |
2106 | } | |
2107 | ||
2108 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
2109 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
2110 | return -EAGAIN; | |
2111 | } | |
2112 | ||
2113 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2114 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
2115 | "Queuing.\n"); | |
2116 | return -EAGAIN; | |
2117 | } | |
2118 | ||
2119 | IWL_DEBUG_INFO("Starting scan...\n"); | |
66b5004d RR |
2120 | if (priv->cfg->sku & IWL_SKU_G) |
2121 | priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ); | |
2122 | if (priv->cfg->sku & IWL_SKU_A) | |
2123 | priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
2124 | set_bit(STATUS_SCANNING, &priv->status); |
2125 | priv->scan_start = jiffies; | |
2126 | priv->scan_pass_start = priv->scan_start; | |
2127 | ||
2128 | queue_work(priv->workqueue, &priv->request_scan); | |
2129 | ||
2130 | return 0; | |
2131 | } | |
2132 | ||
bb8c093b | 2133 | static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv *priv, int hw_decrypt) |
b481de9c | 2134 | { |
bb8c093b | 2135 | struct iwl3945_rxon_cmd *rxon = &priv->staging_rxon; |
b481de9c ZY |
2136 | |
2137 | if (hw_decrypt) | |
2138 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
2139 | else | |
2140 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
2141 | ||
2142 | return 0; | |
2143 | } | |
2144 | ||
8318d78a JB |
2145 | static void iwl3945_set_flags_for_phymode(struct iwl3945_priv *priv, |
2146 | enum ieee80211_band band) | |
b481de9c | 2147 | { |
8318d78a | 2148 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
2149 | priv->staging_rxon.flags &= |
2150 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
2151 | | RXON_FLG_CCK_MSK); | |
2152 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2153 | } else { | |
bb8c093b | 2154 | /* Copied from iwl3945_bg_post_associate() */ |
b481de9c ZY |
2155 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
2156 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2157 | else | |
2158 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2159 | ||
05c914fe | 2160 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2161 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
2162 | ||
2163 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
2164 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
2165 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
2166 | } | |
2167 | } | |
2168 | ||
2169 | /* | |
01ebd063 | 2170 | * initialize rxon structure with default values from eeprom |
b481de9c | 2171 | */ |
60294de3 ZY |
2172 | static void iwl3945_connection_init_rx_config(struct iwl3945_priv *priv, |
2173 | int mode) | |
b481de9c | 2174 | { |
bb8c093b | 2175 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
2176 | |
2177 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
2178 | ||
60294de3 | 2179 | switch (mode) { |
05c914fe | 2180 | case NL80211_IFTYPE_AP: |
b481de9c ZY |
2181 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; |
2182 | break; | |
2183 | ||
05c914fe | 2184 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2185 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; |
2186 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
2187 | break; | |
2188 | ||
05c914fe | 2189 | case NL80211_IFTYPE_ADHOC: |
b481de9c ZY |
2190 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; |
2191 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
2192 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
2193 | RXON_FILTER_ACCEPT_GRP_MSK; | |
2194 | break; | |
2195 | ||
05c914fe | 2196 | case NL80211_IFTYPE_MONITOR: |
b481de9c ZY |
2197 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; |
2198 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
2199 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
2200 | break; | |
69dc5d9d | 2201 | default: |
60294de3 | 2202 | IWL_ERROR("Unsupported interface type %d\n", mode); |
69dc5d9d | 2203 | break; |
b481de9c ZY |
2204 | } |
2205 | ||
2206 | #if 0 | |
2207 | /* TODO: Figure out when short_preamble would be set and cache from | |
2208 | * that */ | |
2209 | if (!hw_to_local(priv->hw)->short_preamble) | |
2210 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2211 | else | |
2212 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2213 | #endif | |
2214 | ||
8318d78a | 2215 | ch_info = iwl3945_get_channel_info(priv, priv->band, |
25b3f57c | 2216 | le16_to_cpu(priv->active_rxon.channel)); |
b481de9c ZY |
2217 | |
2218 | if (!ch_info) | |
2219 | ch_info = &priv->channel_info[0]; | |
2220 | ||
2221 | /* | |
2222 | * in some case A channels are all non IBSS | |
2223 | * in this case force B/G channel | |
2224 | */ | |
60294de3 | 2225 | if ((mode == NL80211_IFTYPE_ADHOC) && !(is_channel_ibss(ch_info))) |
b481de9c ZY |
2226 | ch_info = &priv->channel_info[0]; |
2227 | ||
2228 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
2229 | if (is_channel_a_band(ch_info)) | |
8318d78a | 2230 | priv->band = IEEE80211_BAND_5GHZ; |
b481de9c | 2231 | else |
8318d78a | 2232 | priv->band = IEEE80211_BAND_2GHZ; |
b481de9c | 2233 | |
8318d78a | 2234 | iwl3945_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
2235 | |
2236 | priv->staging_rxon.ofdm_basic_rates = | |
2237 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2238 | priv->staging_rxon.cck_basic_rates = | |
2239 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2240 | } | |
2241 | ||
bb8c093b | 2242 | static int iwl3945_set_mode(struct iwl3945_priv *priv, int mode) |
b481de9c | 2243 | { |
05c914fe | 2244 | if (mode == NL80211_IFTYPE_ADHOC) { |
bb8c093b | 2245 | const struct iwl3945_channel_info *ch_info; |
b481de9c | 2246 | |
bb8c093b | 2247 | ch_info = iwl3945_get_channel_info(priv, |
8318d78a | 2248 | priv->band, |
b481de9c ZY |
2249 | le16_to_cpu(priv->staging_rxon.channel)); |
2250 | ||
2251 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
2252 | IWL_ERROR("channel %d not IBSS channel\n", | |
2253 | le16_to_cpu(priv->staging_rxon.channel)); | |
2254 | return -EINVAL; | |
2255 | } | |
2256 | } | |
2257 | ||
60294de3 | 2258 | iwl3945_connection_init_rx_config(priv, mode); |
b481de9c ZY |
2259 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2260 | ||
bb8c093b | 2261 | iwl3945_clear_stations_table(priv); |
b481de9c | 2262 | |
a96a27f9 | 2263 | /* don't commit rxon if rf-kill is on*/ |
fde3571f MA |
2264 | if (!iwl3945_is_ready_rf(priv)) |
2265 | return -EAGAIN; | |
2266 | ||
2267 | cancel_delayed_work(&priv->scan_check); | |
2268 | if (iwl3945_scan_cancel_timeout(priv, 100)) { | |
2269 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
2270 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2271 | return -EAGAIN; | |
2272 | } | |
2273 | ||
bb8c093b | 2274 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
2275 | |
2276 | return 0; | |
2277 | } | |
2278 | ||
bb8c093b | 2279 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv *priv, |
e039fa4a | 2280 | struct ieee80211_tx_info *info, |
bb8c093b | 2281 | struct iwl3945_cmd *cmd, |
b481de9c ZY |
2282 | struct sk_buff *skb_frag, |
2283 | int last_frag) | |
2284 | { | |
1c014420 | 2285 | struct iwl3945_hw_key *keyinfo = |
e039fa4a | 2286 | &priv->stations[info->control.hw_key->hw_key_idx].keyinfo; |
b481de9c ZY |
2287 | |
2288 | switch (keyinfo->alg) { | |
2289 | case ALG_CCMP: | |
2290 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM; | |
2291 | memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen); | |
a96a27f9 | 2292 | IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n"); |
b481de9c ZY |
2293 | break; |
2294 | ||
2295 | case ALG_TKIP: | |
2296 | #if 0 | |
2297 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP; | |
2298 | ||
2299 | if (last_frag) | |
2300 | memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8, | |
2301 | 8); | |
2302 | else | |
2303 | memset(cmd->cmd.tx.tkip_mic.byte, 0, 8); | |
2304 | #endif | |
2305 | break; | |
2306 | ||
2307 | case ALG_WEP: | |
2308 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP | | |
e039fa4a | 2309 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
b481de9c ZY |
2310 | |
2311 | if (keyinfo->keylen == 13) | |
2312 | cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128; | |
2313 | ||
2314 | memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen); | |
2315 | ||
2316 | IWL_DEBUG_TX("Configuring packet for WEP encryption " | |
e039fa4a | 2317 | "with key %d\n", info->control.hw_key->hw_key_idx); |
b481de9c ZY |
2318 | break; |
2319 | ||
b481de9c ZY |
2320 | default: |
2321 | printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg); | |
2322 | break; | |
2323 | } | |
2324 | } | |
2325 | ||
2326 | /* | |
2327 | * handle build REPLY_TX command notification. | |
2328 | */ | |
bb8c093b CH |
2329 | static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, |
2330 | struct iwl3945_cmd *cmd, | |
e039fa4a | 2331 | struct ieee80211_tx_info *info, |
b481de9c ZY |
2332 | struct ieee80211_hdr *hdr, |
2333 | int is_unicast, u8 std_id) | |
2334 | { | |
fd7c8a40 | 2335 | __le16 fc = hdr->frame_control; |
b481de9c | 2336 | __le32 tx_flags = cmd->cmd.tx.tx_flags; |
e6a9854b | 2337 | u8 rc_flags = info->control.rates[0].flags; |
b481de9c ZY |
2338 | |
2339 | cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
e039fa4a | 2340 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
b481de9c | 2341 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
fd7c8a40 | 2342 | if (ieee80211_is_mgmt(fc)) |
b481de9c | 2343 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
fd7c8a40 | 2344 | if (ieee80211_is_probe_resp(fc) && |
b481de9c ZY |
2345 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
2346 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
2347 | } else { | |
2348 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
2349 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
2350 | } | |
2351 | ||
2352 | cmd->cmd.tx.sta_id = std_id; | |
8b7b1e05 | 2353 | if (ieee80211_has_morefrags(fc)) |
b481de9c ZY |
2354 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
2355 | ||
fd7c8a40 HH |
2356 | if (ieee80211_is_data_qos(fc)) { |
2357 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
54dbb525 | 2358 | cmd->cmd.tx.tid_tspec = qc[0] & 0xf; |
b481de9c | 2359 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2360 | } else { |
b481de9c | 2361 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 2362 | } |
b481de9c | 2363 | |
e6a9854b | 2364 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
b481de9c ZY |
2365 | tx_flags |= TX_CMD_FLG_RTS_MSK; |
2366 | tx_flags &= ~TX_CMD_FLG_CTS_MSK; | |
e6a9854b | 2367 | } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
b481de9c ZY |
2368 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; |
2369 | tx_flags |= TX_CMD_FLG_CTS_MSK; | |
2370 | } | |
2371 | ||
2372 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
2373 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
2374 | ||
2375 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
fd7c8a40 HH |
2376 | if (ieee80211_is_mgmt(fc)) { |
2377 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
bc434dd2 | 2378 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 2379 | else |
bc434dd2 | 2380 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2); |
ab53d8af | 2381 | } else { |
b481de9c | 2382 | cmd->cmd.tx.timeout.pm_frame_timeout = 0; |
ab53d8af MA |
2383 | #ifdef CONFIG_IWL3945_LEDS |
2384 | priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len); | |
2385 | #endif | |
2386 | } | |
b481de9c ZY |
2387 | |
2388 | cmd->cmd.tx.driver_txop = 0; | |
2389 | cmd->cmd.tx.tx_flags = tx_flags; | |
2390 | cmd->cmd.tx.next_frame_len = 0; | |
2391 | } | |
2392 | ||
6440adb5 CB |
2393 | /** |
2394 | * iwl3945_get_sta_id - Find station's index within station table | |
2395 | */ | |
bb8c093b | 2396 | static int iwl3945_get_sta_id(struct iwl3945_priv *priv, struct ieee80211_hdr *hdr) |
b481de9c ZY |
2397 | { |
2398 | int sta_id; | |
2399 | u16 fc = le16_to_cpu(hdr->frame_control); | |
2400 | ||
6440adb5 | 2401 | /* If this frame is broadcast or management, use broadcast station id */ |
b481de9c ZY |
2402 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
2403 | is_multicast_ether_addr(hdr->addr1)) | |
2404 | return priv->hw_setting.bcast_sta_id; | |
2405 | ||
2406 | switch (priv->iw_mode) { | |
2407 | ||
6440adb5 CB |
2408 | /* If we are a client station in a BSS network, use the special |
2409 | * AP station entry (that's the only station we communicate with) */ | |
05c914fe | 2410 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2411 | return IWL_AP_ID; |
2412 | ||
2413 | /* If we are an AP, then find the station, or use BCAST */ | |
05c914fe | 2414 | case NL80211_IFTYPE_AP: |
bb8c093b | 2415 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2416 | if (sta_id != IWL_INVALID_STATION) |
2417 | return sta_id; | |
2418 | return priv->hw_setting.bcast_sta_id; | |
2419 | ||
6440adb5 CB |
2420 | /* If this frame is going out to an IBSS network, find the station, |
2421 | * or create a new station table entry */ | |
05c914fe | 2422 | case NL80211_IFTYPE_ADHOC: { |
6440adb5 | 2423 | /* Create new station table entry */ |
bb8c093b | 2424 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2425 | if (sta_id != IWL_INVALID_STATION) |
2426 | return sta_id; | |
2427 | ||
bb8c093b | 2428 | sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC); |
b481de9c ZY |
2429 | |
2430 | if (sta_id != IWL_INVALID_STATION) | |
2431 | return sta_id; | |
2432 | ||
e174961c | 2433 | IWL_DEBUG_DROP("Station %pM not in station map. " |
b481de9c | 2434 | "Defaulting to broadcast...\n", |
e174961c | 2435 | hdr->addr1); |
bb8c093b | 2436 | iwl3945_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
b481de9c | 2437 | return priv->hw_setting.bcast_sta_id; |
0795af57 | 2438 | } |
914233d6 SG |
2439 | /* If we are in monitor mode, use BCAST. This is required for |
2440 | * packet injection. */ | |
05c914fe | 2441 | case NL80211_IFTYPE_MONITOR: |
914233d6 SG |
2442 | return priv->hw_setting.bcast_sta_id; |
2443 | ||
b481de9c | 2444 | default: |
6f147926 | 2445 | IWL_WARNING("Unknown mode of operation: %d\n", priv->iw_mode); |
b481de9c ZY |
2446 | return priv->hw_setting.bcast_sta_id; |
2447 | } | |
2448 | } | |
2449 | ||
2450 | /* | |
2451 | * start REPLY_TX command process | |
2452 | */ | |
e039fa4a | 2453 | static int iwl3945_tx_skb(struct iwl3945_priv *priv, struct sk_buff *skb) |
b481de9c ZY |
2454 | { |
2455 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
e039fa4a | 2456 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bb8c093b | 2457 | struct iwl3945_tfd_frame *tfd; |
b481de9c | 2458 | u32 *control_flags; |
e2530083 | 2459 | int txq_id = skb_get_queue_mapping(skb); |
bb8c093b CH |
2460 | struct iwl3945_tx_queue *txq = NULL; |
2461 | struct iwl3945_queue *q = NULL; | |
b481de9c ZY |
2462 | dma_addr_t phys_addr; |
2463 | dma_addr_t txcmd_phys; | |
bb8c093b | 2464 | struct iwl3945_cmd *out_cmd = NULL; |
54dbb525 TW |
2465 | u16 len, idx, len_org, hdr_len; |
2466 | u8 id; | |
2467 | u8 unicast; | |
b481de9c | 2468 | u8 sta_id; |
54dbb525 | 2469 | u8 tid = 0; |
b481de9c | 2470 | u16 seq_number = 0; |
fd7c8a40 | 2471 | __le16 fc; |
b481de9c | 2472 | u8 wait_write_ptr = 0; |
54dbb525 | 2473 | u8 *qc = NULL; |
b481de9c ZY |
2474 | unsigned long flags; |
2475 | int rc; | |
2476 | ||
2477 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2478 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
2479 | IWL_DEBUG_DROP("Dropping - RF KILL\n"); |
2480 | goto drop_unlock; | |
2481 | } | |
2482 | ||
e039fa4a | 2483 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
b481de9c ZY |
2484 | IWL_ERROR("ERROR: No TX rate available.\n"); |
2485 | goto drop_unlock; | |
2486 | } | |
2487 | ||
2488 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
2489 | id = 0; | |
2490 | ||
fd7c8a40 | 2491 | fc = hdr->frame_control; |
b481de9c | 2492 | |
c8b0e6e1 | 2493 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
2494 | if (ieee80211_is_auth(fc)) |
2495 | IWL_DEBUG_TX("Sending AUTH frame\n"); | |
fd7c8a40 | 2496 | else if (ieee80211_is_assoc_req(fc)) |
b481de9c | 2497 | IWL_DEBUG_TX("Sending ASSOC frame\n"); |
fd7c8a40 | 2498 | else if (ieee80211_is_reassoc_req(fc)) |
b481de9c ZY |
2499 | IWL_DEBUG_TX("Sending REASSOC frame\n"); |
2500 | #endif | |
2501 | ||
7878a5a4 | 2502 | /* drop all data frame if we are not associated */ |
914233d6 | 2503 | if (ieee80211_is_data(fc) && |
05c914fe | 2504 | (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */ |
914233d6 | 2505 | (!iwl3945_is_associated(priv) || |
05c914fe | 2506 | ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) { |
bb8c093b | 2507 | IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n"); |
b481de9c ZY |
2508 | goto drop_unlock; |
2509 | } | |
2510 | ||
2511 | spin_unlock_irqrestore(&priv->lock, flags); | |
2512 | ||
7294ec95 | 2513 | hdr_len = ieee80211_hdrlen(fc); |
6440adb5 CB |
2514 | |
2515 | /* Find (or create) index into station table for destination station */ | |
bb8c093b | 2516 | sta_id = iwl3945_get_sta_id(priv, hdr); |
b481de9c | 2517 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
2518 | IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n", |
2519 | hdr->addr1); | |
b481de9c ZY |
2520 | goto drop; |
2521 | } | |
2522 | ||
2523 | IWL_DEBUG_RATE("station Id %d\n", sta_id); | |
2524 | ||
fd7c8a40 HH |
2525 | if (ieee80211_is_data_qos(fc)) { |
2526 | qc = ieee80211_get_qos_ctl(hdr); | |
7294ec95 | 2527 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
b481de9c ZY |
2528 | seq_number = priv->stations[sta_id].tid[tid].seq_number & |
2529 | IEEE80211_SCTL_SEQ; | |
2530 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
2531 | (hdr->seq_ctrl & | |
2532 | __constant_cpu_to_le16(IEEE80211_SCTL_FRAG)); | |
2533 | seq_number += 0x10; | |
2534 | } | |
6440adb5 CB |
2535 | |
2536 | /* Descriptor for chosen Tx queue */ | |
b481de9c ZY |
2537 | txq = &priv->txq[txq_id]; |
2538 | q = &txq->q; | |
2539 | ||
2540 | spin_lock_irqsave(&priv->lock, flags); | |
2541 | ||
6440adb5 | 2542 | /* Set up first empty TFD within this queue's circular TFD buffer */ |
fc4b6853 | 2543 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
2544 | memset(tfd, 0, sizeof(*tfd)); |
2545 | control_flags = (u32 *) tfd; | |
fc4b6853 | 2546 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 2547 | |
6440adb5 | 2548 | /* Set up driver data for this TFD */ |
bb8c093b | 2549 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl3945_tx_info)); |
fc4b6853 | 2550 | txq->txb[q->write_ptr].skb[0] = skb; |
6440adb5 CB |
2551 | |
2552 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
b481de9c ZY |
2553 | out_cmd = &txq->cmd[idx]; |
2554 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); | |
2555 | memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx)); | |
6440adb5 CB |
2556 | |
2557 | /* | |
2558 | * Set up the Tx-command (not MAC!) header. | |
2559 | * Store the chosen Tx queue and TFD index within the sequence field; | |
2560 | * after Tx, uCode's Tx response will return this value so driver can | |
2561 | * locate the frame within the tx queue and do post-tx processing. | |
2562 | */ | |
b481de9c ZY |
2563 | out_cmd->hdr.cmd = REPLY_TX; |
2564 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 2565 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 CB |
2566 | |
2567 | /* Copy MAC header from skb into command buffer */ | |
b481de9c ZY |
2568 | memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len); |
2569 | ||
6440adb5 CB |
2570 | /* |
2571 | * Use the first empty entry in this queue's command buffer array | |
2572 | * to contain the Tx command and MAC header concatenated together | |
2573 | * (payload data will be in another buffer). | |
2574 | * Size of this varies, due to varying MAC header length. | |
2575 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
2576 | * of the MAC header (device reads on dword boundaries). | |
2577 | * We'll tell device about this padding later. | |
2578 | */ | |
b481de9c | 2579 | len = priv->hw_setting.tx_cmd_len + |
bb8c093b | 2580 | sizeof(struct iwl3945_cmd_header) + hdr_len; |
b481de9c ZY |
2581 | |
2582 | len_org = len; | |
2583 | len = (len + 3) & ~3; | |
2584 | ||
2585 | if (len_org != len) | |
2586 | len_org = 1; | |
2587 | else | |
2588 | len_org = 0; | |
2589 | ||
6440adb5 CB |
2590 | /* Physical address of this Tx command's header (not MAC header!), |
2591 | * within command buffer array. */ | |
bb8c093b CH |
2592 | txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl3945_cmd) * idx + |
2593 | offsetof(struct iwl3945_cmd, hdr); | |
b481de9c | 2594 | |
6440adb5 CB |
2595 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
2596 | * first entry */ | |
bb8c093b | 2597 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len); |
b481de9c | 2598 | |
d0f09804 | 2599 | if (info->control.hw_key) |
e039fa4a | 2600 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0); |
b481de9c | 2601 | |
6440adb5 CB |
2602 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
2603 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
2604 | len = skb->len - hdr_len; |
2605 | if (len) { | |
2606 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
2607 | len, PCI_DMA_TODEVICE); | |
bb8c093b | 2608 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len); |
b481de9c ZY |
2609 | } |
2610 | ||
b481de9c | 2611 | if (!len) |
6440adb5 | 2612 | /* If there is no payload, then we use only one Tx buffer */ |
b481de9c ZY |
2613 | *control_flags = TFD_CTL_COUNT_SET(1); |
2614 | else | |
6440adb5 CB |
2615 | /* Else use 2 buffers. |
2616 | * Tell 3945 about any padding after MAC header */ | |
b481de9c ZY |
2617 | *control_flags = TFD_CTL_COUNT_SET(2) | |
2618 | TFD_CTL_PAD_SET(U32_PAD(len)); | |
2619 | ||
6440adb5 | 2620 | /* Total # bytes to be transmitted */ |
b481de9c ZY |
2621 | len = (u16)skb->len; |
2622 | out_cmd->cmd.tx.len = cpu_to_le16(len); | |
2623 | ||
2624 | /* TODO need this for burst mode later on */ | |
e039fa4a | 2625 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, unicast, sta_id); |
b481de9c ZY |
2626 | |
2627 | /* set is_hcca to 0; it probably will never be implemented */ | |
e039fa4a | 2628 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); |
b481de9c ZY |
2629 | |
2630 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; | |
2631 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
2632 | ||
8b7b1e05 | 2633 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
b481de9c | 2634 | txq->need_update = 1; |
3ac7f146 | 2635 | if (qc) |
b481de9c | 2636 | priv->stations[sta_id].tid[tid].seq_number = seq_number; |
b481de9c ZY |
2637 | } else { |
2638 | wait_write_ptr = 1; | |
2639 | txq->need_update = 0; | |
2640 | } | |
2641 | ||
bb8c093b | 2642 | iwl3945_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload, |
b481de9c ZY |
2643 | sizeof(out_cmd->cmd.tx)); |
2644 | ||
bb8c093b | 2645 | iwl3945_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr, |
7294ec95 | 2646 | ieee80211_hdrlen(fc)); |
b481de9c | 2647 | |
6440adb5 | 2648 | /* Tell device the write index *just past* this latest filled TFD */ |
c54b679d | 2649 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
bb8c093b | 2650 | rc = iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2651 | spin_unlock_irqrestore(&priv->lock, flags); |
2652 | ||
2653 | if (rc) | |
2654 | return rc; | |
2655 | ||
bb8c093b | 2656 | if ((iwl3945_queue_space(q) < q->high_mark) |
b481de9c ZY |
2657 | && priv->mac80211_registered) { |
2658 | if (wait_write_ptr) { | |
2659 | spin_lock_irqsave(&priv->lock, flags); | |
2660 | txq->need_update = 1; | |
bb8c093b | 2661 | iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2662 | spin_unlock_irqrestore(&priv->lock, flags); |
2663 | } | |
2664 | ||
e2530083 | 2665 | ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb)); |
b481de9c ZY |
2666 | } |
2667 | ||
2668 | return 0; | |
2669 | ||
2670 | drop_unlock: | |
2671 | spin_unlock_irqrestore(&priv->lock, flags); | |
2672 | drop: | |
2673 | return -1; | |
2674 | } | |
2675 | ||
bb8c093b | 2676 | static void iwl3945_set_rate(struct iwl3945_priv *priv) |
b481de9c | 2677 | { |
8318d78a | 2678 | const struct ieee80211_supported_band *sband = NULL; |
b481de9c ZY |
2679 | struct ieee80211_rate *rate; |
2680 | int i; | |
2681 | ||
8318d78a JB |
2682 | sband = iwl3945_get_band(priv, priv->band); |
2683 | if (!sband) { | |
c4ba9621 SA |
2684 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); |
2685 | return; | |
2686 | } | |
b481de9c ZY |
2687 | |
2688 | priv->active_rate = 0; | |
2689 | priv->active_rate_basic = 0; | |
2690 | ||
8318d78a JB |
2691 | IWL_DEBUG_RATE("Setting rates for %s GHz\n", |
2692 | sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5"); | |
2693 | ||
2694 | for (i = 0; i < sband->n_bitrates; i++) { | |
2695 | rate = &sband->bitrates[i]; | |
2696 | if ((rate->hw_value < IWL_RATE_COUNT) && | |
2697 | !(rate->flags & IEEE80211_CHAN_DISABLED)) { | |
2698 | IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n", | |
2699 | rate->hw_value, iwl3945_rates[rate->hw_value].plcp); | |
2700 | priv->active_rate |= (1 << rate->hw_value); | |
2701 | } | |
b481de9c ZY |
2702 | } |
2703 | ||
2704 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
2705 | priv->active_rate, priv->active_rate_basic); | |
2706 | ||
2707 | /* | |
2708 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
2709 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
2710 | * OFDM | |
2711 | */ | |
2712 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
2713 | priv->staging_rxon.cck_basic_rates = | |
2714 | ((priv->active_rate_basic & | |
2715 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
2716 | else | |
2717 | priv->staging_rxon.cck_basic_rates = | |
2718 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2719 | ||
2720 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
2721 | priv->staging_rxon.ofdm_basic_rates = | |
2722 | ((priv->active_rate_basic & | |
2723 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
2724 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
2725 | else | |
2726 | priv->staging_rxon.ofdm_basic_rates = | |
2727 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2728 | } | |
2729 | ||
bb8c093b | 2730 | static void iwl3945_radio_kill_sw(struct iwl3945_priv *priv, int disable_radio) |
b481de9c ZY |
2731 | { |
2732 | unsigned long flags; | |
2733 | ||
2734 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
2735 | return; | |
2736 | ||
2737 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
2738 | disable_radio ? "OFF" : "ON"); | |
2739 | ||
2740 | if (disable_radio) { | |
bb8c093b | 2741 | iwl3945_scan_cancel(priv); |
b481de9c | 2742 | /* FIXME: This is a workaround for AP */ |
05c914fe | 2743 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
b481de9c | 2744 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 2745 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
2746 | CSR_UCODE_SW_BIT_RFKILL); |
2747 | spin_unlock_irqrestore(&priv->lock, flags); | |
bb8c093b | 2748 | iwl3945_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0); |
b481de9c ZY |
2749 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
2750 | } | |
2751 | return; | |
2752 | } | |
2753 | ||
2754 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2755 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
2756 | |
2757 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
2758 | spin_unlock_irqrestore(&priv->lock, flags); | |
2759 | ||
2760 | /* wake up ucode */ | |
2761 | msleep(10); | |
2762 | ||
2763 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
2764 | iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
2765 | if (!iwl3945_grab_nic_access(priv)) | |
2766 | iwl3945_release_nic_access(priv); | |
b481de9c ZY |
2767 | spin_unlock_irqrestore(&priv->lock, flags); |
2768 | ||
2769 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
2770 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2771 | "disabled by HW switch\n"); | |
2772 | return; | |
2773 | } | |
2774 | ||
808e72a0 ZY |
2775 | if (priv->is_open) |
2776 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
2777 | return; |
2778 | } | |
2779 | ||
bb8c093b | 2780 | void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb, |
b481de9c ZY |
2781 | u32 decrypt_res, struct ieee80211_rx_status *stats) |
2782 | { | |
2783 | u16 fc = | |
2784 | le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control); | |
2785 | ||
2786 | if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) | |
2787 | return; | |
2788 | ||
2789 | if (!(fc & IEEE80211_FCTL_PROTECTED)) | |
2790 | return; | |
2791 | ||
2792 | IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res); | |
2793 | switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { | |
2794 | case RX_RES_STATUS_SEC_TYPE_TKIP: | |
2795 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2796 | RX_RES_STATUS_BAD_ICV_MIC) | |
2797 | stats->flag |= RX_FLAG_MMIC_ERROR; | |
2798 | case RX_RES_STATUS_SEC_TYPE_WEP: | |
2799 | case RX_RES_STATUS_SEC_TYPE_CCMP: | |
2800 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2801 | RX_RES_STATUS_DECRYPT_OK) { | |
2802 | IWL_DEBUG_RX("hw decrypt successfully!!!\n"); | |
2803 | stats->flag |= RX_FLAG_DECRYPTED; | |
2804 | } | |
2805 | break; | |
2806 | ||
2807 | default: | |
2808 | break; | |
2809 | } | |
2810 | } | |
2811 | ||
c8b0e6e1 | 2812 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
2813 | |
2814 | #include "iwl-spectrum.h" | |
2815 | ||
2816 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
2817 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
2818 | #define TIME_UNIT 1024 | |
2819 | ||
2820 | /* | |
2821 | * extended beacon time format | |
2822 | * time in usec will be changed into a 32-bit value in 8:24 format | |
2823 | * the high 1 byte is the beacon counts | |
2824 | * the lower 3 bytes is the time in usec within one beacon interval | |
2825 | */ | |
2826 | ||
bb8c093b | 2827 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
2828 | { |
2829 | u32 quot; | |
2830 | u32 rem; | |
2831 | u32 interval = beacon_interval * 1024; | |
2832 | ||
2833 | if (!interval || !usec) | |
2834 | return 0; | |
2835 | ||
2836 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
2837 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
2838 | ||
2839 | return (quot << 24) + rem; | |
2840 | } | |
2841 | ||
2842 | /* base is usually what we get from ucode with each received frame, | |
2843 | * the same as HW timer counter counting down | |
2844 | */ | |
2845 | ||
bb8c093b | 2846 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
2847 | { |
2848 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
2849 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
2850 | u32 interval = beacon_interval * TIME_UNIT; | |
2851 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
2852 | (addon & BEACON_TIME_MASK_HIGH); | |
2853 | ||
2854 | if (base_low > addon_low) | |
2855 | res += base_low - addon_low; | |
2856 | else if (base_low < addon_low) { | |
2857 | res += interval + base_low - addon_low; | |
2858 | res += (1 << 24); | |
2859 | } else | |
2860 | res += (1 << 24); | |
2861 | ||
2862 | return cpu_to_le32(res); | |
2863 | } | |
2864 | ||
bb8c093b | 2865 | static int iwl3945_get_measurement(struct iwl3945_priv *priv, |
b481de9c ZY |
2866 | struct ieee80211_measurement_params *params, |
2867 | u8 type) | |
2868 | { | |
bb8c093b CH |
2869 | struct iwl3945_spectrum_cmd spectrum; |
2870 | struct iwl3945_rx_packet *res; | |
2871 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
2872 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
2873 | .data = (void *)&spectrum, | |
2874 | .meta.flags = CMD_WANT_SKB, | |
2875 | }; | |
2876 | u32 add_time = le64_to_cpu(params->start_time); | |
2877 | int rc; | |
2878 | int spectrum_resp_status; | |
2879 | int duration = le16_to_cpu(params->duration); | |
2880 | ||
bb8c093b | 2881 | if (iwl3945_is_associated(priv)) |
b481de9c | 2882 | add_time = |
bb8c093b | 2883 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
2884 | le64_to_cpu(params->start_time) - priv->last_tsf, |
2885 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
2886 | ||
2887 | memset(&spectrum, 0, sizeof(spectrum)); | |
2888 | ||
2889 | spectrum.channel_count = cpu_to_le16(1); | |
2890 | spectrum.flags = | |
2891 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
2892 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
2893 | cmd.len = sizeof(spectrum); | |
2894 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
2895 | ||
bb8c093b | 2896 | if (iwl3945_is_associated(priv)) |
b481de9c | 2897 | spectrum.start_time = |
bb8c093b | 2898 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
2899 | add_time, |
2900 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
2901 | else | |
2902 | spectrum.start_time = 0; | |
2903 | ||
2904 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
2905 | spectrum.channels[0].channel = params->channel; | |
2906 | spectrum.channels[0].type = type; | |
2907 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
2908 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
2909 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
2910 | ||
bb8c093b | 2911 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
2912 | if (rc) |
2913 | return rc; | |
2914 | ||
bb8c093b | 2915 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
2916 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
2917 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
2918 | rc = -EIO; | |
2919 | } | |
2920 | ||
2921 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
2922 | switch (spectrum_resp_status) { | |
2923 | case 0: /* Command will be handled */ | |
2924 | if (res->u.spectrum.id != 0xff) { | |
bc434dd2 IS |
2925 | IWL_DEBUG_INFO("Replaced existing measurement: %d\n", |
2926 | res->u.spectrum.id); | |
b481de9c ZY |
2927 | priv->measurement_status &= ~MEASUREMENT_READY; |
2928 | } | |
2929 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
2930 | rc = 0; | |
2931 | break; | |
2932 | ||
2933 | case 1: /* Command will not be handled */ | |
2934 | rc = -EAGAIN; | |
2935 | break; | |
2936 | } | |
2937 | ||
2938 | dev_kfree_skb_any(cmd.meta.u.skb); | |
2939 | ||
2940 | return rc; | |
2941 | } | |
2942 | #endif | |
2943 | ||
bb8c093b CH |
2944 | static void iwl3945_rx_reply_alive(struct iwl3945_priv *priv, |
2945 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2946 | { |
bb8c093b CH |
2947 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
2948 | struct iwl3945_alive_resp *palive; | |
b481de9c ZY |
2949 | struct delayed_work *pwork; |
2950 | ||
2951 | palive = &pkt->u.alive_frame; | |
2952 | ||
2953 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
2954 | "0x%01X 0x%01X\n", | |
2955 | palive->is_valid, palive->ver_type, | |
2956 | palive->ver_subtype); | |
2957 | ||
2958 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
2959 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
2960 | memcpy(&priv->card_alive_init, | |
2961 | &pkt->u.alive_frame, | |
bb8c093b | 2962 | sizeof(struct iwl3945_init_alive_resp)); |
b481de9c ZY |
2963 | pwork = &priv->init_alive_start; |
2964 | } else { | |
2965 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
2966 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
bb8c093b | 2967 | sizeof(struct iwl3945_alive_resp)); |
b481de9c | 2968 | pwork = &priv->alive_start; |
bb8c093b | 2969 | iwl3945_disable_events(priv); |
b481de9c ZY |
2970 | } |
2971 | ||
2972 | /* We delay the ALIVE response by 5ms to | |
2973 | * give the HW RF Kill time to activate... */ | |
2974 | if (palive->is_valid == UCODE_VALID_OK) | |
2975 | queue_delayed_work(priv->workqueue, pwork, | |
2976 | msecs_to_jiffies(5)); | |
2977 | else | |
2978 | IWL_WARNING("uCode did not respond OK.\n"); | |
2979 | } | |
2980 | ||
bb8c093b CH |
2981 | static void iwl3945_rx_reply_add_sta(struct iwl3945_priv *priv, |
2982 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2983 | { |
bb8c093b | 2984 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
2985 | |
2986 | IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); | |
2987 | return; | |
2988 | } | |
2989 | ||
bb8c093b CH |
2990 | static void iwl3945_rx_reply_error(struct iwl3945_priv *priv, |
2991 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 2992 | { |
bb8c093b | 2993 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
2994 | |
2995 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
2996 | "seq 0x%04X ser 0x%08X\n", | |
2997 | le32_to_cpu(pkt->u.err_resp.error_type), | |
2998 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
2999 | pkt->u.err_resp.cmd_id, | |
3000 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
3001 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
3002 | } | |
3003 | ||
3004 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
3005 | ||
bb8c093b | 3006 | static void iwl3945_rx_csa(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb) |
b481de9c | 3007 | { |
bb8c093b CH |
3008 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3009 | struct iwl3945_rxon_cmd *rxon = (void *)&priv->active_rxon; | |
3010 | struct iwl3945_csa_notification *csa = &(pkt->u.csa_notif); | |
b481de9c ZY |
3011 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
3012 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
3013 | rxon->channel = csa->channel; | |
3014 | priv->staging_rxon.channel = csa->channel; | |
3015 | } | |
3016 | ||
bb8c093b CH |
3017 | static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv *priv, |
3018 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3019 | { |
c8b0e6e1 | 3020 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
bb8c093b CH |
3021 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3022 | struct iwl3945_spectrum_notification *report = &(pkt->u.spectrum_notif); | |
b481de9c ZY |
3023 | |
3024 | if (!report->state) { | |
3025 | IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO, | |
3026 | "Spectrum Measure Notification: Start\n"); | |
3027 | return; | |
3028 | } | |
3029 | ||
3030 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
3031 | priv->measurement_status |= MEASUREMENT_READY; | |
3032 | #endif | |
3033 | } | |
3034 | ||
bb8c093b CH |
3035 | static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv *priv, |
3036 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3037 | { |
c8b0e6e1 | 3038 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3039 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3040 | struct iwl3945_sleep_notification *sleep = &(pkt->u.sleep_notif); | |
b481de9c ZY |
3041 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
3042 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
3043 | #endif | |
3044 | } | |
3045 | ||
bb8c093b CH |
3046 | static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv *priv, |
3047 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3048 | { |
bb8c093b | 3049 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3050 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
3051 | "notification for %s:\n", | |
3052 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bb8c093b | 3053 | iwl3945_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
3054 | } |
3055 | ||
bb8c093b | 3056 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 3057 | { |
bb8c093b CH |
3058 | struct iwl3945_priv *priv = |
3059 | container_of(work, struct iwl3945_priv, beacon_update); | |
b481de9c ZY |
3060 | struct sk_buff *beacon; |
3061 | ||
3062 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 3063 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
3064 | |
3065 | if (!beacon) { | |
3066 | IWL_ERROR("update beacon failed\n"); | |
3067 | return; | |
3068 | } | |
3069 | ||
3070 | mutex_lock(&priv->mutex); | |
3071 | /* new beacon skb is allocated every time; dispose previous.*/ | |
3072 | if (priv->ibss_beacon) | |
3073 | dev_kfree_skb(priv->ibss_beacon); | |
3074 | ||
3075 | priv->ibss_beacon = beacon; | |
3076 | mutex_unlock(&priv->mutex); | |
3077 | ||
bb8c093b | 3078 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3079 | } |
3080 | ||
bb8c093b CH |
3081 | static void iwl3945_rx_beacon_notif(struct iwl3945_priv *priv, |
3082 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3083 | { |
c8b0e6e1 | 3084 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3085 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3086 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); | |
b481de9c ZY |
3087 | u8 rate = beacon->beacon_notify_hdr.rate; |
3088 | ||
3089 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
3090 | "tsf %d %d rate %d\n", | |
3091 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
3092 | beacon->beacon_notify_hdr.failure_frame, | |
3093 | le32_to_cpu(beacon->ibss_mgr_status), | |
3094 | le32_to_cpu(beacon->high_tsf), | |
3095 | le32_to_cpu(beacon->low_tsf), rate); | |
3096 | #endif | |
3097 | ||
05c914fe | 3098 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
3099 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
3100 | queue_work(priv->workqueue, &priv->beacon_update); | |
3101 | } | |
3102 | ||
3103 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
bb8c093b CH |
3104 | static void iwl3945_rx_reply_scan(struct iwl3945_priv *priv, |
3105 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3106 | { |
c8b0e6e1 | 3107 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3108 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3109 | struct iwl3945_scanreq_notification *notif = | |
3110 | (struct iwl3945_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
3111 | |
3112 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
3113 | #endif | |
3114 | } | |
3115 | ||
3116 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
bb8c093b CH |
3117 | static void iwl3945_rx_scan_start_notif(struct iwl3945_priv *priv, |
3118 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3119 | { |
bb8c093b CH |
3120 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3121 | struct iwl3945_scanstart_notification *notif = | |
3122 | (struct iwl3945_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
3123 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
3124 | IWL_DEBUG_SCAN("Scan start: " | |
3125 | "%d [802.11%s] " | |
3126 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
3127 | notif->channel, | |
3128 | notif->band ? "bg" : "a", | |
3129 | notif->tsf_high, | |
3130 | notif->tsf_low, notif->status, notif->beacon_timer); | |
3131 | } | |
3132 | ||
3133 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
bb8c093b CH |
3134 | static void iwl3945_rx_scan_results_notif(struct iwl3945_priv *priv, |
3135 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3136 | { |
bb8c093b CH |
3137 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3138 | struct iwl3945_scanresults_notification *notif = | |
3139 | (struct iwl3945_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
3140 | |
3141 | IWL_DEBUG_SCAN("Scan ch.res: " | |
3142 | "%d [802.11%s] " | |
3143 | "(TSF: 0x%08X:%08X) - %d " | |
3144 | "elapsed=%lu usec (%dms since last)\n", | |
3145 | notif->channel, | |
3146 | notif->band ? "bg" : "a", | |
3147 | le32_to_cpu(notif->tsf_high), | |
3148 | le32_to_cpu(notif->tsf_low), | |
3149 | le32_to_cpu(notif->statistics[0]), | |
3150 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
3151 | jiffies_to_msecs(elapsed_jiffies | |
3152 | (priv->last_scan_jiffies, jiffies))); | |
3153 | ||
3154 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3155 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3156 | } |
3157 | ||
3158 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
bb8c093b CH |
3159 | static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv *priv, |
3160 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3161 | { |
bb8c093b CH |
3162 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3163 | struct iwl3945_scancomplete_notification *scan_notif = (void *)pkt->u.raw; | |
b481de9c ZY |
3164 | |
3165 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
3166 | scan_notif->scanned_channels, | |
3167 | scan_notif->tsf_low, | |
3168 | scan_notif->tsf_high, scan_notif->status); | |
3169 | ||
3170 | /* The HW is no longer scanning */ | |
3171 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
3172 | ||
3173 | /* The scan completion notification came in, so kill that timer... */ | |
3174 | cancel_delayed_work(&priv->scan_check); | |
3175 | ||
3176 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
66b5004d RR |
3177 | (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ? |
3178 | "2.4" : "5.2", | |
b481de9c ZY |
3179 | jiffies_to_msecs(elapsed_jiffies |
3180 | (priv->scan_pass_start, jiffies))); | |
3181 | ||
66b5004d RR |
3182 | /* Remove this scanned band from the list of pending |
3183 | * bands to scan, band G precedes A in order of scanning | |
3184 | * as seen in iwl3945_bg_request_scan */ | |
3185 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) | |
3186 | priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ); | |
3187 | else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) | |
3188 | priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ); | |
b481de9c ZY |
3189 | |
3190 | /* If a request to abort was given, or the scan did not succeed | |
3191 | * then we reset the scan state machine and terminate, | |
3192 | * re-queuing another scan if one has been requested */ | |
3193 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3194 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
3195 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
3196 | } else { | |
3197 | /* If there are more bands on this scan pass reschedule */ | |
3198 | if (priv->scan_bands > 0) | |
3199 | goto reschedule; | |
3200 | } | |
3201 | ||
3202 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3203 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3204 | IWL_DEBUG_INFO("Setting scan to off\n"); |
3205 | ||
3206 | clear_bit(STATUS_SCANNING, &priv->status); | |
3207 | ||
3208 | IWL_DEBUG_INFO("Scan took %dms\n", | |
3209 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
3210 | ||
3211 | queue_work(priv->workqueue, &priv->scan_completed); | |
3212 | ||
3213 | return; | |
3214 | ||
3215 | reschedule: | |
3216 | priv->scan_pass_start = jiffies; | |
3217 | queue_work(priv->workqueue, &priv->request_scan); | |
3218 | } | |
3219 | ||
3220 | /* Handle notification from uCode that card's power state is changing | |
3221 | * due to software, hardware, or critical temperature RFKILL */ | |
bb8c093b CH |
3222 | static void iwl3945_rx_card_state_notif(struct iwl3945_priv *priv, |
3223 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3224 | { |
bb8c093b | 3225 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3226 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
3227 | unsigned long status = priv->status; | |
3228 | ||
3229 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
3230 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
3231 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
3232 | ||
bb8c093b | 3233 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
3234 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3235 | ||
3236 | if (flags & HW_CARD_DISABLED) | |
3237 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3238 | else | |
3239 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3240 | ||
3241 | ||
3242 | if (flags & SW_CARD_DISABLED) | |
3243 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
3244 | else | |
3245 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
3246 | ||
bb8c093b | 3247 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
3248 | |
3249 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
3250 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
3251 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
3252 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
3253 | queue_work(priv->workqueue, &priv->rf_kill); | |
3254 | else | |
3255 | wake_up_interruptible(&priv->wait_command_queue); | |
3256 | } | |
3257 | ||
3258 | /** | |
bb8c093b | 3259 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
3260 | * |
3261 | * Setup the RX handlers for each of the reply types sent from the uCode | |
3262 | * to the host. | |
3263 | * | |
3264 | * This function chains into the hardware specific files for them to setup | |
3265 | * any hardware specific handlers as well. | |
3266 | */ | |
bb8c093b | 3267 | static void iwl3945_setup_rx_handlers(struct iwl3945_priv *priv) |
b481de9c | 3268 | { |
bb8c093b CH |
3269 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
3270 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
3271 | priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error; | |
3272 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa; | |
b481de9c | 3273 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
3274 | iwl3945_rx_spectrum_measure_notif; |
3275 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif; | |
b481de9c | 3276 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
3277 | iwl3945_rx_pm_debug_statistics_notif; |
3278 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; | |
b481de9c | 3279 | |
9fbab516 BC |
3280 | /* |
3281 | * The same handler is used for both the REPLY to a discrete | |
3282 | * statistics request from the host as well as for the periodic | |
3283 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 3284 | */ |
bb8c093b CH |
3285 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
3286 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 3287 | |
bb8c093b CH |
3288 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan; |
3289 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif; | |
b481de9c | 3290 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 3291 | iwl3945_rx_scan_results_notif; |
b481de9c | 3292 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b CH |
3293 | iwl3945_rx_scan_complete_notif; |
3294 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; | |
b481de9c | 3295 | |
9fbab516 | 3296 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 3297 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
3298 | } |
3299 | ||
91c066f2 TW |
3300 | /** |
3301 | * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries | |
3302 | * When FW advances 'R' index, all entries between old and new 'R' index | |
3303 | * need to be reclaimed. | |
3304 | */ | |
3305 | static void iwl3945_cmd_queue_reclaim(struct iwl3945_priv *priv, | |
3306 | int txq_id, int index) | |
3307 | { | |
3308 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; | |
3309 | struct iwl3945_queue *q = &txq->q; | |
3310 | int nfreed = 0; | |
3311 | ||
3312 | if ((index >= q->n_bd) || (iwl3945_x2_queue_used(q, index) == 0)) { | |
3313 | IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " | |
3314 | "is out of range [0-%d] %d %d.\n", txq_id, | |
3315 | index, q->n_bd, q->write_ptr, q->read_ptr); | |
3316 | return; | |
3317 | } | |
3318 | ||
3319 | for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; | |
3320 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { | |
3321 | if (nfreed > 1) { | |
3322 | IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, | |
3323 | q->write_ptr, q->read_ptr); | |
3324 | queue_work(priv->workqueue, &priv->restart); | |
3325 | break; | |
3326 | } | |
3327 | nfreed++; | |
3328 | } | |
3329 | } | |
3330 | ||
3331 | ||
b481de9c | 3332 | /** |
bb8c093b | 3333 | * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
3334 | * @rxb: Rx buffer to reclaim |
3335 | * | |
3336 | * If an Rx buffer has an async callback associated with it the callback | |
3337 | * will be executed. The attached skb (if present) will only be freed | |
3338 | * if the callback returns 1 | |
3339 | */ | |
bb8c093b CH |
3340 | static void iwl3945_tx_cmd_complete(struct iwl3945_priv *priv, |
3341 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3342 | { |
bb8c093b | 3343 | struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3344 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
3345 | int txq_id = SEQ_TO_QUEUE(sequence); | |
3346 | int index = SEQ_TO_INDEX(sequence); | |
3347 | int huge = sequence & SEQ_HUGE_FRAME; | |
3348 | int cmd_index; | |
bb8c093b | 3349 | struct iwl3945_cmd *cmd; |
b481de9c | 3350 | |
b481de9c ZY |
3351 | BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); |
3352 | ||
3353 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); | |
3354 | cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
3355 | ||
3356 | /* Input error checking is done when commands are added to queue. */ | |
3357 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
3358 | cmd->meta.source->u.skb = rxb->skb; | |
3359 | rxb->skb = NULL; | |
3360 | } else if (cmd->meta.u.callback && | |
3361 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
3362 | rxb->skb = NULL; | |
3363 | ||
91c066f2 | 3364 | iwl3945_cmd_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
3365 | |
3366 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
3367 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
3368 | wake_up_interruptible(&priv->wait_command_queue); | |
3369 | } | |
3370 | } | |
3371 | ||
3372 | /************************** RX-FUNCTIONS ****************************/ | |
3373 | /* | |
3374 | * Rx theory of operation | |
3375 | * | |
3376 | * The host allocates 32 DMA target addresses and passes the host address | |
3377 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
3378 | * 0 to 31 | |
3379 | * | |
3380 | * Rx Queue Indexes | |
3381 | * The host/firmware share two index registers for managing the Rx buffers. | |
3382 | * | |
3383 | * The READ index maps to the first position that the firmware may be writing | |
3384 | * to -- the driver can read up to (but not including) this position and get | |
3385 | * good data. | |
3386 | * The READ index is managed by the firmware once the card is enabled. | |
3387 | * | |
3388 | * The WRITE index maps to the last position the driver has read from -- the | |
3389 | * position preceding WRITE is the last slot the firmware can place a packet. | |
3390 | * | |
3391 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
3392 | * WRITE = READ. | |
3393 | * | |
9fbab516 | 3394 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
3395 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
3396 | * | |
9fbab516 | 3397 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
3398 | * and fire the RX interrupt. The driver can then query the READ index and |
3399 | * process as many packets as possible, moving the WRITE index forward as it | |
3400 | * resets the Rx queue buffers with new memory. | |
3401 | * | |
3402 | * The management in the driver is as follows: | |
3403 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
3404 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 3405 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 3406 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
3407 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
3408 | * 'processed' and 'read' driver indexes as well) | |
3409 | * + A received packet is processed and handed to the kernel network stack, | |
3410 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
3411 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
3412 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
3413 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
3414 | * were enough free buffers and RX_STALLED is set it is cleared. | |
3415 | * | |
3416 | * | |
3417 | * Driver sequence: | |
3418 | * | |
9fbab516 BC |
3419 | * iwl3945_rx_queue_alloc() Allocates rx_free |
3420 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls | |
bb8c093b | 3421 | * iwl3945_rx_queue_restock |
9fbab516 | 3422 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
3423 | * queue, updates firmware pointers, and updates |
3424 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 3425 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
3426 | * |
3427 | * -- enable interrupts -- | |
9fbab516 | 3428 | * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the |
b481de9c ZY |
3429 | * READ INDEX, detaching the SKB from the pool. |
3430 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 3431 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
3432 | * slots. |
3433 | * ... | |
3434 | * | |
3435 | */ | |
3436 | ||
3437 | /** | |
bb8c093b | 3438 | * iwl3945_rx_queue_space - Return number of free slots available in queue. |
b481de9c | 3439 | */ |
bb8c093b | 3440 | static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue *q) |
b481de9c ZY |
3441 | { |
3442 | int s = q->read - q->write; | |
3443 | if (s <= 0) | |
3444 | s += RX_QUEUE_SIZE; | |
3445 | /* keep some buffer to not confuse full and empty queue */ | |
3446 | s -= 2; | |
3447 | if (s < 0) | |
3448 | s = 0; | |
3449 | return s; | |
3450 | } | |
3451 | ||
3452 | /** | |
bb8c093b | 3453 | * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue |
b481de9c | 3454 | */ |
bb8c093b | 3455 | int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv, struct iwl3945_rx_queue *q) |
b481de9c ZY |
3456 | { |
3457 | u32 reg = 0; | |
3458 | int rc = 0; | |
3459 | unsigned long flags; | |
3460 | ||
3461 | spin_lock_irqsave(&q->lock, flags); | |
3462 | ||
3463 | if (q->need_update == 0) | |
3464 | goto exit_unlock; | |
3465 | ||
6440adb5 | 3466 | /* If power-saving is in use, make sure device is awake */ |
b481de9c | 3467 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { |
bb8c093b | 3468 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3469 | |
3470 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
bb8c093b | 3471 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3472 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3473 | goto exit_unlock; | |
3474 | } | |
3475 | ||
bb8c093b | 3476 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3477 | if (rc) |
3478 | goto exit_unlock; | |
3479 | ||
6440adb5 | 3480 | /* Device expects a multiple of 8 */ |
bb8c093b | 3481 | iwl3945_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, |
b481de9c | 3482 | q->write & ~0x7); |
bb8c093b | 3483 | iwl3945_release_nic_access(priv); |
6440adb5 CB |
3484 | |
3485 | /* Else device is assumed to be awake */ | |
b481de9c | 3486 | } else |
6440adb5 | 3487 | /* Device expects a multiple of 8 */ |
bb8c093b | 3488 | iwl3945_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7); |
b481de9c ZY |
3489 | |
3490 | ||
3491 | q->need_update = 0; | |
3492 | ||
3493 | exit_unlock: | |
3494 | spin_unlock_irqrestore(&q->lock, flags); | |
3495 | return rc; | |
3496 | } | |
3497 | ||
3498 | /** | |
9fbab516 | 3499 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 3500 | */ |
bb8c093b | 3501 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv *priv, |
b481de9c ZY |
3502 | dma_addr_t dma_addr) |
3503 | { | |
3504 | return cpu_to_le32((u32)dma_addr); | |
3505 | } | |
3506 | ||
3507 | /** | |
bb8c093b | 3508 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 3509 | * |
9fbab516 | 3510 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 3511 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 3512 | * as we can, pulling from rx_free. |
b481de9c ZY |
3513 | * |
3514 | * This moves the 'write' index forward to catch up with 'processed', and | |
3515 | * also updates the memory address in the firmware to reference the new | |
3516 | * target buffer. | |
3517 | */ | |
bb8c093b | 3518 | static int iwl3945_rx_queue_restock(struct iwl3945_priv *priv) |
b481de9c | 3519 | { |
bb8c093b | 3520 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3521 | struct list_head *element; |
bb8c093b | 3522 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3523 | unsigned long flags; |
3524 | int write, rc; | |
3525 | ||
3526 | spin_lock_irqsave(&rxq->lock, flags); | |
3527 | write = rxq->write & ~0x7; | |
bb8c093b | 3528 | while ((iwl3945_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 3529 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 3530 | element = rxq->rx_free.next; |
bb8c093b | 3531 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
b481de9c | 3532 | list_del(element); |
6440adb5 CB |
3533 | |
3534 | /* Point to Rx buffer via next RBD in circular buffer */ | |
bb8c093b | 3535 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->dma_addr); |
b481de9c ZY |
3536 | rxq->queue[rxq->write] = rxb; |
3537 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
3538 | rxq->free_count--; | |
3539 | } | |
3540 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3541 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
3542 | * refill it */ | |
3543 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
3544 | queue_work(priv->workqueue, &priv->rx_replenish); | |
3545 | ||
3546 | ||
6440adb5 CB |
3547 | /* If we've added more space for the firmware to place data, tell it. |
3548 | * Increment device's write pointer in multiples of 8. */ | |
b481de9c ZY |
3549 | if ((write != (rxq->write & ~0x7)) |
3550 | || (abs(rxq->write - rxq->read) > 7)) { | |
3551 | spin_lock_irqsave(&rxq->lock, flags); | |
3552 | rxq->need_update = 1; | |
3553 | spin_unlock_irqrestore(&rxq->lock, flags); | |
bb8c093b | 3554 | rc = iwl3945_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
3555 | if (rc) |
3556 | return rc; | |
3557 | } | |
3558 | ||
3559 | return 0; | |
3560 | } | |
3561 | ||
3562 | /** | |
bb8c093b | 3563 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
3564 | * |
3565 | * When moving to rx_free an SKB is allocated for the slot. | |
3566 | * | |
bb8c093b | 3567 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 3568 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 3569 | */ |
5c0eef96 | 3570 | static void iwl3945_rx_allocate(struct iwl3945_priv *priv) |
b481de9c | 3571 | { |
bb8c093b | 3572 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3573 | struct list_head *element; |
bb8c093b | 3574 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3575 | unsigned long flags; |
3576 | spin_lock_irqsave(&rxq->lock, flags); | |
3577 | while (!list_empty(&rxq->rx_used)) { | |
3578 | element = rxq->rx_used.next; | |
bb8c093b | 3579 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
6440adb5 CB |
3580 | |
3581 | /* Alloc a new receive buffer */ | |
b481de9c ZY |
3582 | rxb->skb = |
3583 | alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC); | |
3584 | if (!rxb->skb) { | |
3585 | if (net_ratelimit()) | |
3586 | printk(KERN_CRIT DRV_NAME | |
3587 | ": Can not allocate SKB buffers\n"); | |
3588 | /* We don't reschedule replenish work here -- we will | |
3589 | * call the restock method and if it still needs | |
3590 | * more buffers it will schedule replenish */ | |
3591 | break; | |
3592 | } | |
12342c47 ZY |
3593 | |
3594 | /* If radiotap head is required, reserve some headroom here. | |
3595 | * The physical head count is a variable rx_stats->phy_count. | |
3596 | * We reserve 4 bytes here. Plus these extra bytes, the | |
3597 | * headroom of the physical head should be enough for the | |
3598 | * radiotap head that iwl3945 supported. See iwl3945_rt. | |
3599 | */ | |
3600 | skb_reserve(rxb->skb, 4); | |
3601 | ||
b481de9c ZY |
3602 | priv->alloc_rxb_skb++; |
3603 | list_del(element); | |
6440adb5 CB |
3604 | |
3605 | /* Get physical address of RB/SKB */ | |
b481de9c ZY |
3606 | rxb->dma_addr = |
3607 | pci_map_single(priv->pci_dev, rxb->skb->data, | |
3608 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3609 | list_add_tail(&rxb->list, &rxq->rx_free); | |
3610 | rxq->free_count++; | |
3611 | } | |
3612 | spin_unlock_irqrestore(&rxq->lock, flags); | |
5c0eef96 MA |
3613 | } |
3614 | ||
3615 | /* | |
3616 | * this should be called while priv->lock is locked | |
3617 | */ | |
4fd1f841 | 3618 | static void __iwl3945_rx_replenish(void *data) |
5c0eef96 MA |
3619 | { |
3620 | struct iwl3945_priv *priv = data; | |
3621 | ||
3622 | iwl3945_rx_allocate(priv); | |
3623 | iwl3945_rx_queue_restock(priv); | |
3624 | } | |
3625 | ||
3626 | ||
3627 | void iwl3945_rx_replenish(void *data) | |
3628 | { | |
3629 | struct iwl3945_priv *priv = data; | |
3630 | unsigned long flags; | |
3631 | ||
3632 | iwl3945_rx_allocate(priv); | |
b481de9c ZY |
3633 | |
3634 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 3635 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3636 | spin_unlock_irqrestore(&priv->lock, flags); |
3637 | } | |
3638 | ||
3639 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. | |
9fbab516 | 3640 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
b481de9c ZY |
3641 | * This free routine walks the list of POOL entries and if SKB is set to |
3642 | * non NULL it is unmapped and freed | |
3643 | */ | |
bb8c093b | 3644 | static void iwl3945_rx_queue_free(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3645 | { |
3646 | int i; | |
3647 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
3648 | if (rxq->pool[i].skb != NULL) { | |
3649 | pci_unmap_single(priv->pci_dev, | |
3650 | rxq->pool[i].dma_addr, | |
3651 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3652 | dev_kfree_skb(rxq->pool[i].skb); | |
3653 | } | |
3654 | } | |
3655 | ||
3656 | pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, | |
3657 | rxq->dma_addr); | |
3658 | rxq->bd = NULL; | |
3659 | } | |
3660 | ||
bb8c093b | 3661 | int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv) |
b481de9c | 3662 | { |
bb8c093b | 3663 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
3664 | struct pci_dev *dev = priv->pci_dev; |
3665 | int i; | |
3666 | ||
3667 | spin_lock_init(&rxq->lock); | |
3668 | INIT_LIST_HEAD(&rxq->rx_free); | |
3669 | INIT_LIST_HEAD(&rxq->rx_used); | |
6440adb5 CB |
3670 | |
3671 | /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ | |
b481de9c ZY |
3672 | rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr); |
3673 | if (!rxq->bd) | |
3674 | return -ENOMEM; | |
6440adb5 | 3675 | |
b481de9c ZY |
3676 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
3677 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) | |
3678 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
6440adb5 | 3679 | |
b481de9c ZY |
3680 | /* Set us so that we have processed and used all buffers, but have |
3681 | * not restocked the Rx queue with fresh buffers */ | |
3682 | rxq->read = rxq->write = 0; | |
3683 | rxq->free_count = 0; | |
3684 | rxq->need_update = 0; | |
3685 | return 0; | |
3686 | } | |
3687 | ||
bb8c093b | 3688 | void iwl3945_rx_queue_reset(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3689 | { |
3690 | unsigned long flags; | |
3691 | int i; | |
3692 | spin_lock_irqsave(&rxq->lock, flags); | |
3693 | INIT_LIST_HEAD(&rxq->rx_free); | |
3694 | INIT_LIST_HEAD(&rxq->rx_used); | |
3695 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
3696 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
3697 | /* In the reset function, these buffers may have been allocated | |
3698 | * to an SKB, so we need to unmap and free potential storage */ | |
3699 | if (rxq->pool[i].skb != NULL) { | |
3700 | pci_unmap_single(priv->pci_dev, | |
3701 | rxq->pool[i].dma_addr, | |
3702 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3703 | priv->alloc_rxb_skb--; | |
3704 | dev_kfree_skb(rxq->pool[i].skb); | |
3705 | rxq->pool[i].skb = NULL; | |
3706 | } | |
3707 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
3708 | } | |
3709 | ||
3710 | /* Set us so that we have processed and used all buffers, but have | |
3711 | * not restocked the Rx queue with fresh buffers */ | |
3712 | rxq->read = rxq->write = 0; | |
3713 | rxq->free_count = 0; | |
3714 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3715 | } | |
3716 | ||
3717 | /* Convert linear signal-to-noise ratio into dB */ | |
3718 | static u8 ratio2dB[100] = { | |
3719 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
3720 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
3721 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
3722 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
3723 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
3724 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
3725 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
3726 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
3727 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
3728 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
3729 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
3730 | }; | |
3731 | ||
3732 | /* Calculates a relative dB value from a ratio of linear | |
3733 | * (i.e. not dB) signal levels. | |
3734 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 3735 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 3736 | { |
221c80cf AB |
3737 | /* 1000:1 or higher just report as 60 dB */ |
3738 | if (sig_ratio >= 1000) | |
b481de9c ZY |
3739 | return 60; |
3740 | ||
221c80cf | 3741 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 3742 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 3743 | if (sig_ratio >= 100) |
3ac7f146 | 3744 | return 20 + (int)ratio2dB[sig_ratio/10]; |
b481de9c ZY |
3745 | |
3746 | /* We shouldn't see this */ | |
3747 | if (sig_ratio < 1) | |
3748 | return 0; | |
3749 | ||
3750 | /* Use table for ratios 1:1 - 99:1 */ | |
3751 | return (int)ratio2dB[sig_ratio]; | |
3752 | } | |
3753 | ||
3754 | #define PERFECT_RSSI (-20) /* dBm */ | |
3755 | #define WORST_RSSI (-95) /* dBm */ | |
3756 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
3757 | ||
3758 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
3759 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
3760 | * about formulas used below. */ | |
bb8c093b | 3761 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
b481de9c ZY |
3762 | { |
3763 | int sig_qual; | |
3764 | int degradation = PERFECT_RSSI - rssi_dbm; | |
3765 | ||
3766 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
3767 | * as indicator; formula is (signal dbm - noise dbm). | |
3768 | * SNR at or above 40 is a great signal (100%). | |
3769 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
3770 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
3771 | if (noise_dbm) { | |
3772 | if (rssi_dbm - noise_dbm >= 40) | |
3773 | return 100; | |
3774 | else if (rssi_dbm < noise_dbm) | |
3775 | return 0; | |
3776 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
3777 | ||
3778 | /* Else use just the signal level. | |
3779 | * This formula is a least squares fit of data points collected and | |
3780 | * compared with a reference system that had a percentage (%) display | |
3781 | * for signal quality. */ | |
3782 | } else | |
3783 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
3784 | (15 * RSSI_RANGE + 62 * degradation)) / | |
3785 | (RSSI_RANGE * RSSI_RANGE); | |
3786 | ||
3787 | if (sig_qual > 100) | |
3788 | sig_qual = 100; | |
3789 | else if (sig_qual < 1) | |
3790 | sig_qual = 0; | |
3791 | ||
3792 | return sig_qual; | |
3793 | } | |
3794 | ||
3795 | /** | |
9fbab516 | 3796 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
3797 | * |
3798 | * Uses the priv->rx_handlers callback function array to invoke | |
3799 | * the appropriate handlers, including command responses, | |
3800 | * frame-received notifications, and other notifications. | |
3801 | */ | |
bb8c093b | 3802 | static void iwl3945_rx_handle(struct iwl3945_priv *priv) |
b481de9c | 3803 | { |
bb8c093b CH |
3804 | struct iwl3945_rx_mem_buffer *rxb; |
3805 | struct iwl3945_rx_packet *pkt; | |
3806 | struct iwl3945_rx_queue *rxq = &priv->rxq; | |
b481de9c ZY |
3807 | u32 r, i; |
3808 | int reclaim; | |
3809 | unsigned long flags; | |
5c0eef96 | 3810 | u8 fill_rx = 0; |
d68ab680 | 3811 | u32 count = 8; |
b481de9c | 3812 | |
6440adb5 CB |
3813 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
3814 | * buffer that the driver may process (last buffer filled by ucode). */ | |
bb8c093b | 3815 | r = iwl3945_hw_get_rx_read(priv); |
b481de9c ZY |
3816 | i = rxq->read; |
3817 | ||
5c0eef96 MA |
3818 | if (iwl3945_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
3819 | fill_rx = 1; | |
b481de9c ZY |
3820 | /* Rx interrupt, but nothing sent from uCode */ |
3821 | if (i == r) | |
3822 | IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i); | |
3823 | ||
3824 | while (i != r) { | |
3825 | rxb = rxq->queue[i]; | |
3826 | ||
9fbab516 | 3827 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
3828 | * then a bug has been introduced in the queue refilling |
3829 | * routines -- catch it here */ | |
3830 | BUG_ON(rxb == NULL); | |
3831 | ||
3832 | rxq->queue[i] = NULL; | |
3833 | ||
3834 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
3835 | IWL_RX_BUF_SIZE, | |
3836 | PCI_DMA_FROMDEVICE); | |
bb8c093b | 3837 | pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3838 | |
3839 | /* Reclaim a command buffer only if this packet is a response | |
3840 | * to a (driver-originated) command. | |
3841 | * If the packet (e.g. Rx frame) originated from uCode, | |
3842 | * there is no command buffer to reclaim. | |
3843 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
3844 | * but apparently a few don't get set; catch them here. */ | |
3845 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
3846 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
3847 | (pkt->hdr.cmd != REPLY_TX); | |
3848 | ||
3849 | /* Based on type of command response or notification, | |
3850 | * handle those that need handling via function in | |
bb8c093b | 3851 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c ZY |
3852 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
3853 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
3854 | "r = %d, i = %d, %s, 0x%02x\n", r, i, | |
3855 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
3856 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); | |
3857 | } else { | |
3858 | /* No handling needed */ | |
3859 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
3860 | "r %d i %d No handler needed for %s, 0x%02x\n", | |
3861 | r, i, get_cmd_string(pkt->hdr.cmd), | |
3862 | pkt->hdr.cmd); | |
3863 | } | |
3864 | ||
3865 | if (reclaim) { | |
9fbab516 BC |
3866 | /* Invoke any callbacks, transfer the skb to caller, and |
3867 | * fire off the (possibly) blocking iwl3945_send_cmd() | |
b481de9c ZY |
3868 | * as we reclaim the driver command queue */ |
3869 | if (rxb && rxb->skb) | |
bb8c093b | 3870 | iwl3945_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
3871 | else |
3872 | IWL_WARNING("Claim null rxb?\n"); | |
3873 | } | |
3874 | ||
3875 | /* For now we just don't re-use anything. We can tweak this | |
3876 | * later to try and re-use notification packets and SKBs that | |
3877 | * fail to Rx correctly */ | |
3878 | if (rxb->skb != NULL) { | |
3879 | priv->alloc_rxb_skb--; | |
3880 | dev_kfree_skb_any(rxb->skb); | |
3881 | rxb->skb = NULL; | |
3882 | } | |
3883 | ||
3884 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
3885 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3886 | spin_lock_irqsave(&rxq->lock, flags); | |
3887 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
3888 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3889 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
3890 | /* If there are a lot of unused frames, |
3891 | * restock the Rx queue so ucode won't assert. */ | |
3892 | if (fill_rx) { | |
3893 | count++; | |
3894 | if (count >= 8) { | |
3895 | priv->rxq.read = i; | |
3896 | __iwl3945_rx_replenish(priv); | |
3897 | count = 0; | |
3898 | } | |
3899 | } | |
b481de9c ZY |
3900 | } |
3901 | ||
3902 | /* Backtrack one entry */ | |
3903 | priv->rxq.read = i; | |
bb8c093b | 3904 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3905 | } |
3906 | ||
6440adb5 CB |
3907 | /** |
3908 | * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware | |
3909 | */ | |
bb8c093b CH |
3910 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
3911 | struct iwl3945_tx_queue *txq) | |
b481de9c ZY |
3912 | { |
3913 | u32 reg = 0; | |
3914 | int rc = 0; | |
3915 | int txq_id = txq->q.id; | |
3916 | ||
3917 | if (txq->need_update == 0) | |
3918 | return rc; | |
3919 | ||
3920 | /* if we're trying to save power */ | |
3921 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { | |
3922 | /* wake up nic if it's powered down ... | |
3923 | * uCode will wake up, and interrupt us again, so next | |
3924 | * time we'll skip this part. */ | |
bb8c093b | 3925 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3926 | |
3927 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
3928 | IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg); | |
bb8c093b | 3929 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3930 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3931 | return rc; | |
3932 | } | |
3933 | ||
3934 | /* restore this queue's parameters in nic hardware. */ | |
bb8c093b | 3935 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3936 | if (rc) |
3937 | return rc; | |
bb8c093b | 3938 | iwl3945_write_direct32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 3939 | txq->q.write_ptr | (txq_id << 8)); |
bb8c093b | 3940 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
3941 | |
3942 | /* else not in power-save mode, uCode will never sleep when we're | |
3943 | * trying to tx (during RFKILL, we're not trying to tx). */ | |
3944 | } else | |
bb8c093b | 3945 | iwl3945_write32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 3946 | txq->q.write_ptr | (txq_id << 8)); |
b481de9c ZY |
3947 | |
3948 | txq->need_update = 0; | |
3949 | ||
3950 | return rc; | |
3951 | } | |
3952 | ||
c8b0e6e1 | 3953 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 3954 | static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c ZY |
3955 | { |
3956 | IWL_DEBUG_RADIO("RX CONFIG:\n"); | |
bb8c093b | 3957 | iwl3945_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
3958 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
3959 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
3960 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
3961 | le32_to_cpu(rxon->filter_flags)); | |
3962 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
3963 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
3964 | rxon->ofdm_basic_rates); | |
3965 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
e174961c JB |
3966 | IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr); |
3967 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
b481de9c ZY |
3968 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
3969 | } | |
3970 | #endif | |
3971 | ||
bb8c093b | 3972 | static void iwl3945_enable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
3973 | { |
3974 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
3975 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
bb8c093b | 3976 | iwl3945_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
3977 | } |
3978 | ||
0359facc MA |
3979 | |
3980 | /* call this function to flush any scheduled tasklet */ | |
3981 | static inline void iwl_synchronize_irq(struct iwl3945_priv *priv) | |
3982 | { | |
a96a27f9 | 3983 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
3984 | synchronize_irq(priv->pci_dev->irq); |
3985 | tasklet_kill(&priv->irq_tasklet); | |
3986 | } | |
3987 | ||
3988 | ||
bb8c093b | 3989 | static inline void iwl3945_disable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
3990 | { |
3991 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
3992 | ||
3993 | /* disable interrupts from uCode/NIC to host */ | |
bb8c093b | 3994 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
3995 | |
3996 | /* acknowledge/clear/reset any interrupts still pending | |
3997 | * from uCode or flow handler (Rx/Tx DMA) */ | |
bb8c093b CH |
3998 | iwl3945_write32(priv, CSR_INT, 0xffffffff); |
3999 | iwl3945_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
4000 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
4001 | } | |
4002 | ||
4003 | static const char *desc_lookup(int i) | |
4004 | { | |
4005 | switch (i) { | |
4006 | case 1: | |
4007 | return "FAIL"; | |
4008 | case 2: | |
4009 | return "BAD_PARAM"; | |
4010 | case 3: | |
4011 | return "BAD_CHECKSUM"; | |
4012 | case 4: | |
4013 | return "NMI_INTERRUPT"; | |
4014 | case 5: | |
4015 | return "SYSASSERT"; | |
4016 | case 6: | |
4017 | return "FATAL_ERROR"; | |
4018 | } | |
4019 | ||
4020 | return "UNKNOWN"; | |
4021 | } | |
4022 | ||
4023 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
4024 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
4025 | ||
bb8c093b | 4026 | static void iwl3945_dump_nic_error_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4027 | { |
4028 | u32 i; | |
4029 | u32 desc, time, count, base, data1; | |
4030 | u32 blink1, blink2, ilink1, ilink2; | |
4031 | int rc; | |
4032 | ||
4033 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
4034 | ||
bb8c093b | 4035 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4036 | IWL_ERROR("Not valid error log pointer 0x%08X\n", base); |
4037 | return; | |
4038 | } | |
4039 | ||
bb8c093b | 4040 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4041 | if (rc) { |
4042 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4043 | return; | |
4044 | } | |
4045 | ||
bb8c093b | 4046 | count = iwl3945_read_targ_mem(priv, base); |
b481de9c ZY |
4047 | |
4048 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
4049 | IWL_ERROR("Start IWL Error Log Dump:\n"); | |
2acae16e | 4050 | IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); |
b481de9c ZY |
4051 | } |
4052 | ||
4053 | IWL_ERROR("Desc Time asrtPC blink2 " | |
4054 | "ilink1 nmiPC Line\n"); | |
4055 | for (i = ERROR_START_OFFSET; | |
4056 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
4057 | i += ERROR_ELEM_SIZE) { | |
bb8c093b | 4058 | desc = iwl3945_read_targ_mem(priv, base + i); |
b481de9c | 4059 | time = |
bb8c093b | 4060 | iwl3945_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 4061 | blink1 = |
bb8c093b | 4062 | iwl3945_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 4063 | blink2 = |
bb8c093b | 4064 | iwl3945_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 4065 | ilink1 = |
bb8c093b | 4066 | iwl3945_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 4067 | ilink2 = |
bb8c093b | 4068 | iwl3945_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 4069 | data1 = |
bb8c093b | 4070 | iwl3945_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c ZY |
4071 | |
4072 | IWL_ERROR | |
4073 | ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
4074 | desc_lookup(desc), desc, time, blink1, blink2, | |
4075 | ilink1, ilink2, data1); | |
4076 | } | |
4077 | ||
bb8c093b | 4078 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4079 | |
4080 | } | |
4081 | ||
f58177b9 | 4082 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
4083 | |
4084 | /** | |
bb8c093b | 4085 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 4086 | * |
bb8c093b | 4087 | * NOTE: Must be called with iwl3945_grab_nic_access() already obtained! |
b481de9c | 4088 | */ |
bb8c093b | 4089 | static void iwl3945_print_event_log(struct iwl3945_priv *priv, u32 start_idx, |
b481de9c ZY |
4090 | u32 num_events, u32 mode) |
4091 | { | |
4092 | u32 i; | |
4093 | u32 base; /* SRAM byte address of event log header */ | |
4094 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
4095 | u32 ptr; /* SRAM byte address of log data */ | |
4096 | u32 ev, time, data; /* event log data */ | |
4097 | ||
4098 | if (num_events == 0) | |
4099 | return; | |
4100 | ||
4101 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
4102 | ||
4103 | if (mode == 0) | |
4104 | event_size = 2 * sizeof(u32); | |
4105 | else | |
4106 | event_size = 3 * sizeof(u32); | |
4107 | ||
4108 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
4109 | ||
4110 | /* "time" is actually "data" for mode 0 (no timestamp). | |
4111 | * place event id # at far right for easier visual parsing. */ | |
4112 | for (i = 0; i < num_events; i++) { | |
bb8c093b | 4113 | ev = iwl3945_read_targ_mem(priv, ptr); |
b481de9c | 4114 | ptr += sizeof(u32); |
bb8c093b | 4115 | time = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4116 | ptr += sizeof(u32); |
4117 | if (mode == 0) | |
4118 | IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */ | |
4119 | else { | |
bb8c093b | 4120 | data = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4121 | ptr += sizeof(u32); |
4122 | IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev); | |
4123 | } | |
4124 | } | |
4125 | } | |
4126 | ||
bb8c093b | 4127 | static void iwl3945_dump_nic_event_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4128 | { |
4129 | int rc; | |
4130 | u32 base; /* SRAM byte address of event log header */ | |
4131 | u32 capacity; /* event log capacity in # entries */ | |
4132 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
4133 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
4134 | u32 next_entry; /* index of next entry to be written by uCode */ | |
4135 | u32 size; /* # entries that we'll print */ | |
4136 | ||
4137 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 4138 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4139 | IWL_ERROR("Invalid event log pointer 0x%08X\n", base); |
4140 | return; | |
4141 | } | |
4142 | ||
bb8c093b | 4143 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4144 | if (rc) { |
4145 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4146 | return; | |
4147 | } | |
4148 | ||
4149 | /* event log header */ | |
bb8c093b CH |
4150 | capacity = iwl3945_read_targ_mem(priv, base); |
4151 | mode = iwl3945_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
4152 | num_wraps = iwl3945_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
4153 | next_entry = iwl3945_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c ZY |
4154 | |
4155 | size = num_wraps ? capacity : next_entry; | |
4156 | ||
4157 | /* bail out if nothing in log */ | |
4158 | if (size == 0) { | |
583fab37 | 4159 | IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); |
bb8c093b | 4160 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4161 | return; |
4162 | } | |
4163 | ||
583fab37 | 4164 | IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", |
b481de9c ZY |
4165 | size, num_wraps); |
4166 | ||
4167 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
4168 | * i.e the next one that uCode would fill. */ | |
4169 | if (num_wraps) | |
bb8c093b | 4170 | iwl3945_print_event_log(priv, next_entry, |
b481de9c ZY |
4171 | capacity - next_entry, mode); |
4172 | ||
4173 | /* (then/else) start at top of log */ | |
bb8c093b | 4174 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
b481de9c | 4175 | |
bb8c093b | 4176 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4177 | } |
4178 | ||
4179 | /** | |
bb8c093b | 4180 | * iwl3945_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 4181 | */ |
bb8c093b | 4182 | static void iwl3945_irq_handle_error(struct iwl3945_priv *priv) |
b481de9c | 4183 | { |
bb8c093b | 4184 | /* Set the FW error flag -- cleared on iwl3945_down */ |
b481de9c ZY |
4185 | set_bit(STATUS_FW_ERROR, &priv->status); |
4186 | ||
4187 | /* Cancel currently queued command. */ | |
4188 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
4189 | ||
c8b0e6e1 | 4190 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4191 | if (iwl3945_debug_level & IWL_DL_FW_ERRORS) { |
4192 | iwl3945_dump_nic_error_log(priv); | |
4193 | iwl3945_dump_nic_event_log(priv); | |
4194 | iwl3945_print_rx_config_cmd(&priv->staging_rxon); | |
b481de9c ZY |
4195 | } |
4196 | #endif | |
4197 | ||
4198 | wake_up_interruptible(&priv->wait_command_queue); | |
4199 | ||
4200 | /* Keep the restart process from trying to send host | |
4201 | * commands by clearing the INIT status bit */ | |
4202 | clear_bit(STATUS_READY, &priv->status); | |
4203 | ||
4204 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
4205 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS, | |
4206 | "Restarting adapter due to uCode error.\n"); | |
4207 | ||
bb8c093b | 4208 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4209 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
4210 | sizeof(priv->recovery_rxon)); | |
4211 | priv->error_recovering = 1; | |
4212 | } | |
4213 | queue_work(priv->workqueue, &priv->restart); | |
4214 | } | |
4215 | } | |
4216 | ||
bb8c093b | 4217 | static void iwl3945_error_recovery(struct iwl3945_priv *priv) |
b481de9c ZY |
4218 | { |
4219 | unsigned long flags; | |
4220 | ||
4221 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
4222 | sizeof(priv->staging_rxon)); | |
4223 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4224 | iwl3945_commit_rxon(priv); |
b481de9c | 4225 | |
bb8c093b | 4226 | iwl3945_add_station(priv, priv->bssid, 1, 0); |
b481de9c ZY |
4227 | |
4228 | spin_lock_irqsave(&priv->lock, flags); | |
4229 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
4230 | priv->error_recovering = 0; | |
4231 | spin_unlock_irqrestore(&priv->lock, flags); | |
4232 | } | |
4233 | ||
bb8c093b | 4234 | static void iwl3945_irq_tasklet(struct iwl3945_priv *priv) |
b481de9c ZY |
4235 | { |
4236 | u32 inta, handled = 0; | |
4237 | u32 inta_fh; | |
4238 | unsigned long flags; | |
c8b0e6e1 | 4239 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
4240 | u32 inta_mask; |
4241 | #endif | |
4242 | ||
4243 | spin_lock_irqsave(&priv->lock, flags); | |
4244 | ||
4245 | /* Ack/clear/reset pending uCode interrupts. | |
4246 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
4247 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
bb8c093b CH |
4248 | inta = iwl3945_read32(priv, CSR_INT); |
4249 | iwl3945_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
4250 | |
4251 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
4252 | * Any new interrupts that happen after this, either while we're | |
4253 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
bb8c093b CH |
4254 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); |
4255 | iwl3945_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 4256 | |
c8b0e6e1 | 4257 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4258 | if (iwl3945_debug_level & IWL_DL_ISR) { |
9fbab516 BC |
4259 | /* just for debug */ |
4260 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
b481de9c ZY |
4261 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
4262 | inta, inta_mask, inta_fh); | |
4263 | } | |
4264 | #endif | |
4265 | ||
4266 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
4267 | * atomic, make sure that inta covers all the interrupts that | |
4268 | * we've discovered, even if FH interrupt came in just after | |
4269 | * reading CSR_INT. */ | |
6f83eaa1 | 4270 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 4271 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 4272 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
4273 | inta |= CSR_INT_BIT_FH_TX; |
4274 | ||
4275 | /* Now service all interrupt bits discovered above. */ | |
4276 | if (inta & CSR_INT_BIT_HW_ERR) { | |
4277 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
4278 | ||
4279 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 4280 | iwl3945_disable_interrupts(priv); |
b481de9c | 4281 | |
bb8c093b | 4282 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4283 | |
4284 | handled |= CSR_INT_BIT_HW_ERR; | |
4285 | ||
4286 | spin_unlock_irqrestore(&priv->lock, flags); | |
4287 | ||
4288 | return; | |
4289 | } | |
4290 | ||
c8b0e6e1 | 4291 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4292 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
b481de9c | 4293 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
4294 | if (inta & CSR_INT_BIT_SCD) |
4295 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
4296 | "the frame/frames.\n"); | |
b481de9c ZY |
4297 | |
4298 | /* Alive notification via Rx interrupt will do the real work */ | |
4299 | if (inta & CSR_INT_BIT_ALIVE) | |
4300 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
4301 | } | |
4302 | #endif | |
4303 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 4304 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 4305 | |
b481de9c ZY |
4306 | /* Error detected by uCode */ |
4307 | if (inta & CSR_INT_BIT_SW_ERR) { | |
4308 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
4309 | inta); | |
bb8c093b | 4310 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4311 | handled |= CSR_INT_BIT_SW_ERR; |
4312 | } | |
4313 | ||
4314 | /* uCode wakes up after power-down sleep */ | |
4315 | if (inta & CSR_INT_BIT_WAKEUP) { | |
4316 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
bb8c093b CH |
4317 | iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq); |
4318 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]); | |
4319 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]); | |
4320 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]); | |
4321 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]); | |
4322 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]); | |
4323 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
4324 | |
4325 | handled |= CSR_INT_BIT_WAKEUP; | |
4326 | } | |
4327 | ||
4328 | /* All uCode command responses, including Tx command responses, | |
4329 | * Rx "responses" (frame-received notification), and other | |
4330 | * notifications from uCode come through here*/ | |
4331 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 4332 | iwl3945_rx_handle(priv); |
b481de9c ZY |
4333 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
4334 | } | |
4335 | ||
4336 | if (inta & CSR_INT_BIT_FH_TX) { | |
4337 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
4338 | ||
bb8c093b CH |
4339 | iwl3945_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
4340 | if (!iwl3945_grab_nic_access(priv)) { | |
4341 | iwl3945_write_direct32(priv, | |
b481de9c ZY |
4342 | FH_TCSR_CREDIT |
4343 | (ALM_FH_SRVC_CHNL), 0x0); | |
bb8c093b | 4344 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4345 | } |
4346 | handled |= CSR_INT_BIT_FH_TX; | |
4347 | } | |
4348 | ||
4349 | if (inta & ~handled) | |
4350 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
4351 | ||
4352 | if (inta & ~CSR_INI_SET_MASK) { | |
4353 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
4354 | inta & ~CSR_INI_SET_MASK); | |
4355 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
4356 | } | |
4357 | ||
4358 | /* Re-enable all interrupts */ | |
0359facc MA |
4359 | /* only Re-enable if disabled by irq */ |
4360 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4361 | iwl3945_enable_interrupts(priv); | |
b481de9c | 4362 | |
c8b0e6e1 | 4363 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4364 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
4365 | inta = iwl3945_read32(priv, CSR_INT); | |
4366 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
4367 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4368 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
4369 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
4370 | } | |
4371 | #endif | |
4372 | spin_unlock_irqrestore(&priv->lock, flags); | |
4373 | } | |
4374 | ||
bb8c093b | 4375 | static irqreturn_t iwl3945_isr(int irq, void *data) |
b481de9c | 4376 | { |
bb8c093b | 4377 | struct iwl3945_priv *priv = data; |
b481de9c ZY |
4378 | u32 inta, inta_mask; |
4379 | u32 inta_fh; | |
4380 | if (!priv) | |
4381 | return IRQ_NONE; | |
4382 | ||
4383 | spin_lock(&priv->lock); | |
4384 | ||
4385 | /* Disable (but don't clear!) interrupts here to avoid | |
4386 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
4387 | * If we have something to service, the tasklet will re-enable ints. | |
4388 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
bb8c093b CH |
4389 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); /* just for debug */ |
4390 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
4391 | |
4392 | /* Discover which interrupts are active/pending */ | |
bb8c093b CH |
4393 | inta = iwl3945_read32(priv, CSR_INT); |
4394 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4395 | |
4396 | /* Ignore interrupt if there's nothing in NIC to service. | |
4397 | * This may be due to IRQ shared with another device, | |
4398 | * or due to sporadic interrupts thrown from our NIC. */ | |
4399 | if (!inta && !inta_fh) { | |
4400 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
4401 | goto none; | |
4402 | } | |
4403 | ||
4404 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
4405 | /* Hardware disappeared */ | |
99df630c | 4406 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%08x\n", inta); |
cb4da1a3 | 4407 | goto unplugged; |
b481de9c ZY |
4408 | } |
4409 | ||
4410 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
4411 | inta, inta_mask, inta_fh); | |
4412 | ||
25c03d8e JP |
4413 | inta &= ~CSR_INT_BIT_SCD; |
4414 | ||
bb8c093b | 4415 | /* iwl3945_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
4416 | if (likely(inta || inta_fh)) |
4417 | tasklet_schedule(&priv->irq_tasklet); | |
cb4da1a3 | 4418 | unplugged: |
b481de9c ZY |
4419 | spin_unlock(&priv->lock); |
4420 | ||
4421 | return IRQ_HANDLED; | |
4422 | ||
4423 | none: | |
4424 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
4425 | /* only Re-enable if disabled by irq */ |
4426 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
4427 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
4428 | spin_unlock(&priv->lock); |
4429 | return IRQ_NONE; | |
4430 | } | |
4431 | ||
4432 | /************************** EEPROM BANDS **************************** | |
4433 | * | |
bb8c093b | 4434 | * The iwl3945_eeprom_band definitions below provide the mapping from the |
b481de9c ZY |
4435 | * EEPROM contents to the specific channel number supported for each |
4436 | * band. | |
4437 | * | |
bb8c093b | 4438 | * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3 |
b481de9c ZY |
4439 | * definition below maps to physical channel 42 in the 5.2GHz spectrum. |
4440 | * The specific geography and calibration information for that channel | |
4441 | * is contained in the eeprom map itself. | |
4442 | * | |
4443 | * During init, we copy the eeprom information and channel map | |
4444 | * information into priv->channel_info_24/52 and priv->channel_map_24/52 | |
4445 | * | |
4446 | * channel_map_24/52 provides the index in the channel_info array for a | |
4447 | * given channel. We have to have two separate maps as there is channel | |
4448 | * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and | |
4449 | * band_2 | |
4450 | * | |
4451 | * A value of 0xff stored in the channel_map indicates that the channel | |
4452 | * is not supported by the hardware at all. | |
4453 | * | |
4454 | * A value of 0xfe in the channel_map indicates that the channel is not | |
4455 | * valid for Tx with the current hardware. This means that | |
4456 | * while the system can tune and receive on a given channel, it may not | |
4457 | * be able to associate or transmit any frames on that | |
4458 | * channel. There is no corresponding channel information for that | |
4459 | * entry. | |
4460 | * | |
4461 | *********************************************************************/ | |
4462 | ||
4463 | /* 2.4 GHz */ | |
bb8c093b | 4464 | static const u8 iwl3945_eeprom_band_1[14] = { |
b481de9c ZY |
4465 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
4466 | }; | |
4467 | ||
4468 | /* 5.2 GHz bands */ | |
9fbab516 | 4469 | static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */ |
b481de9c ZY |
4470 | 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
4471 | }; | |
4472 | ||
9fbab516 | 4473 | static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */ |
b481de9c ZY |
4474 | 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
4475 | }; | |
4476 | ||
bb8c093b | 4477 | static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */ |
b481de9c ZY |
4478 | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
4479 | }; | |
4480 | ||
bb8c093b | 4481 | static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */ |
b481de9c ZY |
4482 | 145, 149, 153, 157, 161, 165 |
4483 | }; | |
4484 | ||
bb8c093b | 4485 | static void iwl3945_init_band_reference(const struct iwl3945_priv *priv, int band, |
b481de9c | 4486 | int *eeprom_ch_count, |
bb8c093b | 4487 | const struct iwl3945_eeprom_channel |
b481de9c ZY |
4488 | **eeprom_ch_info, |
4489 | const u8 **eeprom_ch_index) | |
4490 | { | |
4491 | switch (band) { | |
4492 | case 1: /* 2.4GHz band */ | |
bb8c093b | 4493 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1); |
b481de9c | 4494 | *eeprom_ch_info = priv->eeprom.band_1_channels; |
bb8c093b | 4495 | *eeprom_ch_index = iwl3945_eeprom_band_1; |
b481de9c | 4496 | break; |
9fbab516 | 4497 | case 2: /* 4.9GHz band */ |
bb8c093b | 4498 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2); |
b481de9c | 4499 | *eeprom_ch_info = priv->eeprom.band_2_channels; |
bb8c093b | 4500 | *eeprom_ch_index = iwl3945_eeprom_band_2; |
b481de9c ZY |
4501 | break; |
4502 | case 3: /* 5.2GHz band */ | |
bb8c093b | 4503 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3); |
b481de9c | 4504 | *eeprom_ch_info = priv->eeprom.band_3_channels; |
bb8c093b | 4505 | *eeprom_ch_index = iwl3945_eeprom_band_3; |
b481de9c | 4506 | break; |
9fbab516 | 4507 | case 4: /* 5.5GHz band */ |
bb8c093b | 4508 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4); |
b481de9c | 4509 | *eeprom_ch_info = priv->eeprom.band_4_channels; |
bb8c093b | 4510 | *eeprom_ch_index = iwl3945_eeprom_band_4; |
b481de9c | 4511 | break; |
9fbab516 | 4512 | case 5: /* 5.7GHz band */ |
bb8c093b | 4513 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5); |
b481de9c | 4514 | *eeprom_ch_info = priv->eeprom.band_5_channels; |
bb8c093b | 4515 | *eeprom_ch_index = iwl3945_eeprom_band_5; |
b481de9c ZY |
4516 | break; |
4517 | default: | |
4518 | BUG(); | |
4519 | return; | |
4520 | } | |
4521 | } | |
4522 | ||
6440adb5 CB |
4523 | /** |
4524 | * iwl3945_get_channel_info - Find driver's private channel info | |
4525 | * | |
4526 | * Based on band and channel number. | |
4527 | */ | |
bb8c093b | 4528 | const struct iwl3945_channel_info *iwl3945_get_channel_info(const struct iwl3945_priv *priv, |
8318d78a | 4529 | enum ieee80211_band band, u16 channel) |
b481de9c ZY |
4530 | { |
4531 | int i; | |
4532 | ||
8318d78a JB |
4533 | switch (band) { |
4534 | case IEEE80211_BAND_5GHZ: | |
b481de9c ZY |
4535 | for (i = 14; i < priv->channel_count; i++) { |
4536 | if (priv->channel_info[i].channel == channel) | |
4537 | return &priv->channel_info[i]; | |
4538 | } | |
4539 | break; | |
4540 | ||
8318d78a | 4541 | case IEEE80211_BAND_2GHZ: |
b481de9c ZY |
4542 | if (channel >= 1 && channel <= 14) |
4543 | return &priv->channel_info[channel - 1]; | |
4544 | break; | |
8318d78a JB |
4545 | case IEEE80211_NUM_BANDS: |
4546 | WARN_ON(1); | |
b481de9c ZY |
4547 | } |
4548 | ||
4549 | return NULL; | |
4550 | } | |
4551 | ||
4552 | #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ | |
4553 | ? # x " " : "") | |
4554 | ||
6440adb5 CB |
4555 | /** |
4556 | * iwl3945_init_channel_map - Set up driver's info for all possible channels | |
4557 | */ | |
bb8c093b | 4558 | static int iwl3945_init_channel_map(struct iwl3945_priv *priv) |
b481de9c ZY |
4559 | { |
4560 | int eeprom_ch_count = 0; | |
4561 | const u8 *eeprom_ch_index = NULL; | |
bb8c093b | 4562 | const struct iwl3945_eeprom_channel *eeprom_ch_info = NULL; |
b481de9c | 4563 | int band, ch; |
bb8c093b | 4564 | struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4565 | |
4566 | if (priv->channel_count) { | |
4567 | IWL_DEBUG_INFO("Channel map already initialized.\n"); | |
4568 | return 0; | |
4569 | } | |
4570 | ||
4571 | if (priv->eeprom.version < 0x2f) { | |
4572 | IWL_WARNING("Unsupported EEPROM version: 0x%04X\n", | |
4573 | priv->eeprom.version); | |
4574 | return -EINVAL; | |
4575 | } | |
4576 | ||
4577 | IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n"); | |
4578 | ||
4579 | priv->channel_count = | |
bb8c093b CH |
4580 | ARRAY_SIZE(iwl3945_eeprom_band_1) + |
4581 | ARRAY_SIZE(iwl3945_eeprom_band_2) + | |
4582 | ARRAY_SIZE(iwl3945_eeprom_band_3) + | |
4583 | ARRAY_SIZE(iwl3945_eeprom_band_4) + | |
4584 | ARRAY_SIZE(iwl3945_eeprom_band_5); | |
b481de9c ZY |
4585 | |
4586 | IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count); | |
4587 | ||
bb8c093b | 4588 | priv->channel_info = kzalloc(sizeof(struct iwl3945_channel_info) * |
b481de9c ZY |
4589 | priv->channel_count, GFP_KERNEL); |
4590 | if (!priv->channel_info) { | |
4591 | IWL_ERROR("Could not allocate channel_info\n"); | |
4592 | priv->channel_count = 0; | |
4593 | return -ENOMEM; | |
4594 | } | |
4595 | ||
4596 | ch_info = priv->channel_info; | |
4597 | ||
4598 | /* Loop through the 5 EEPROM bands adding them in order to the | |
4599 | * channel map we maintain (that contains additional information than | |
4600 | * what just in the EEPROM) */ | |
4601 | for (band = 1; band <= 5; band++) { | |
4602 | ||
bb8c093b | 4603 | iwl3945_init_band_reference(priv, band, &eeprom_ch_count, |
b481de9c ZY |
4604 | &eeprom_ch_info, &eeprom_ch_index); |
4605 | ||
4606 | /* Loop through each band adding each of the channels */ | |
4607 | for (ch = 0; ch < eeprom_ch_count; ch++) { | |
4608 | ch_info->channel = eeprom_ch_index[ch]; | |
8318d78a JB |
4609 | ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : |
4610 | IEEE80211_BAND_5GHZ; | |
b481de9c ZY |
4611 | |
4612 | /* permanently store EEPROM's channel regulatory flags | |
4613 | * and max power in channel info database. */ | |
4614 | ch_info->eeprom = eeprom_ch_info[ch]; | |
4615 | ||
4616 | /* Copy the run-time flags so they are there even on | |
4617 | * invalid channels */ | |
4618 | ch_info->flags = eeprom_ch_info[ch].flags; | |
4619 | ||
4620 | if (!(is_channel_valid(ch_info))) { | |
4621 | IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - " | |
4622 | "No traffic\n", | |
4623 | ch_info->channel, | |
4624 | ch_info->flags, | |
4625 | is_channel_a_band(ch_info) ? | |
4626 | "5.2" : "2.4"); | |
4627 | ch_info++; | |
4628 | continue; | |
4629 | } | |
4630 | ||
4631 | /* Initialize regulatory-based run-time data */ | |
4632 | ch_info->max_power_avg = ch_info->curr_txpow = | |
4633 | eeprom_ch_info[ch].max_power_avg; | |
4634 | ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; | |
4635 | ch_info->min_power = 0; | |
4636 | ||
fe7c4040 | 4637 | IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x" |
b481de9c ZY |
4638 | " %ddBm): Ad-Hoc %ssupported\n", |
4639 | ch_info->channel, | |
4640 | is_channel_a_band(ch_info) ? | |
4641 | "5.2" : "2.4", | |
8211ef78 | 4642 | CHECK_AND_PRINT(VALID), |
b481de9c ZY |
4643 | CHECK_AND_PRINT(IBSS), |
4644 | CHECK_AND_PRINT(ACTIVE), | |
4645 | CHECK_AND_PRINT(RADAR), | |
4646 | CHECK_AND_PRINT(WIDE), | |
b481de9c ZY |
4647 | CHECK_AND_PRINT(DFS), |
4648 | eeprom_ch_info[ch].flags, | |
4649 | eeprom_ch_info[ch].max_power_avg, | |
4650 | ((eeprom_ch_info[ch]. | |
4651 | flags & EEPROM_CHANNEL_IBSS) | |
4652 | && !(eeprom_ch_info[ch]. | |
4653 | flags & EEPROM_CHANNEL_RADAR)) | |
4654 | ? "" : "not "); | |
4655 | ||
4656 | /* Set the user_txpower_limit to the highest power | |
4657 | * supported by any channel */ | |
4658 | if (eeprom_ch_info[ch].max_power_avg > | |
4659 | priv->user_txpower_limit) | |
4660 | priv->user_txpower_limit = | |
4661 | eeprom_ch_info[ch].max_power_avg; | |
4662 | ||
4663 | ch_info++; | |
4664 | } | |
4665 | } | |
4666 | ||
6440adb5 | 4667 | /* Set up txpower settings in driver for all channels */ |
b481de9c ZY |
4668 | if (iwl3945_txpower_set_from_eeprom(priv)) |
4669 | return -EIO; | |
4670 | ||
4671 | return 0; | |
4672 | } | |
4673 | ||
849e0dce RC |
4674 | /* |
4675 | * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map | |
4676 | */ | |
4677 | static void iwl3945_free_channel_map(struct iwl3945_priv *priv) | |
4678 | { | |
4679 | kfree(priv->channel_info); | |
4680 | priv->channel_count = 0; | |
4681 | } | |
4682 | ||
b481de9c ZY |
4683 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
4684 | * sending probe req. This should be set long enough to hear probe responses | |
4685 | * from more than one AP. */ | |
f9340520 AK |
4686 | #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */ |
4687 | #define IWL_ACTIVE_DWELL_TIME_52 (20) | |
4688 | ||
4689 | #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3) | |
4690 | #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2) | |
b481de9c ZY |
4691 | |
4692 | /* For faster active scanning, scan will move to the next channel if fewer than | |
4693 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
4694 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
4695 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
4696 | * no other traffic). | |
4697 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
4698 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
f9340520 | 4699 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */ |
b481de9c ZY |
4700 | |
4701 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
4702 | * Must be set longer than active dwell time. | |
4703 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
4704 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
4705 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
4706 | #define IWL_PASSIVE_DWELL_BASE (100) | |
4707 | #define IWL_CHANNEL_TUNE_TIME 5 | |
4708 | ||
e720ce9d | 4709 | #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1))) |
f9340520 | 4710 | |
8318d78a | 4711 | static inline u16 iwl3945_get_active_dwell_time(struct iwl3945_priv *priv, |
f9340520 AK |
4712 | enum ieee80211_band band, |
4713 | u8 n_probes) | |
b481de9c | 4714 | { |
8318d78a | 4715 | if (band == IEEE80211_BAND_5GHZ) |
f9340520 AK |
4716 | return IWL_ACTIVE_DWELL_TIME_52 + |
4717 | IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1); | |
b481de9c | 4718 | else |
f9340520 AK |
4719 | return IWL_ACTIVE_DWELL_TIME_24 + |
4720 | IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1); | |
b481de9c ZY |
4721 | } |
4722 | ||
8318d78a JB |
4723 | static u16 iwl3945_get_passive_dwell_time(struct iwl3945_priv *priv, |
4724 | enum ieee80211_band band) | |
b481de9c | 4725 | { |
8318d78a | 4726 | u16 passive = (band == IEEE80211_BAND_2GHZ) ? |
b481de9c ZY |
4727 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
4728 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
4729 | ||
bb8c093b | 4730 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4731 | /* If we're associated, we clamp the maximum passive |
4732 | * dwell time to be 98% of the beacon interval (minus | |
4733 | * 2 * channel tune time) */ | |
4734 | passive = priv->beacon_int; | |
4735 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
4736 | passive = IWL_PASSIVE_DWELL_BASE; | |
4737 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
4738 | } | |
4739 | ||
b481de9c ZY |
4740 | return passive; |
4741 | } | |
4742 | ||
8318d78a JB |
4743 | static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv, |
4744 | enum ieee80211_band band, | |
f9340520 | 4745 | u8 is_active, u8 n_probes, |
bb8c093b | 4746 | struct iwl3945_scan_channel *scan_ch) |
b481de9c ZY |
4747 | { |
4748 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 4749 | const struct ieee80211_supported_band *sband; |
bb8c093b | 4750 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4751 | u16 passive_dwell = 0; |
4752 | u16 active_dwell = 0; | |
4753 | int added, i; | |
4754 | ||
8318d78a JB |
4755 | sband = iwl3945_get_band(priv, band); |
4756 | if (!sband) | |
b481de9c ZY |
4757 | return 0; |
4758 | ||
8318d78a | 4759 | channels = sband->channels; |
b481de9c | 4760 | |
f9340520 | 4761 | active_dwell = iwl3945_get_active_dwell_time(priv, band, n_probes); |
8318d78a | 4762 | passive_dwell = iwl3945_get_passive_dwell_time(priv, band); |
b481de9c | 4763 | |
8f4807a1 AK |
4764 | if (passive_dwell <= active_dwell) |
4765 | passive_dwell = active_dwell + 1; | |
4766 | ||
8318d78a | 4767 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
4768 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
4769 | continue; | |
4770 | ||
8318d78a | 4771 | scan_ch->channel = channels[i].hw_value; |
b481de9c | 4772 | |
8318d78a | 4773 | ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel); |
b481de9c | 4774 | if (!is_channel_valid(ch_info)) { |
66b5004d | 4775 | IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n", |
b481de9c ZY |
4776 | scan_ch->channel); |
4777 | continue; | |
4778 | } | |
4779 | ||
011a0330 AK |
4780 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
4781 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
4782 | /* If passive , set up for auto-switch | |
4783 | * and use long active_dwell time. | |
4784 | */ | |
b481de9c | 4785 | if (!is_active || is_channel_passive(ch_info) || |
011a0330 | 4786 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
b481de9c | 4787 | scan_ch->type = 0; /* passive */ |
011a0330 AK |
4788 | if (IWL_UCODE_API(priv->ucode_ver) == 1) |
4789 | scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); | |
4790 | } else { | |
b481de9c | 4791 | scan_ch->type = 1; /* active */ |
011a0330 | 4792 | } |
b481de9c | 4793 | |
011a0330 AK |
4794 | /* Set direct probe bits. These may be used both for active |
4795 | * scan channels (probes gets sent right away), | |
4796 | * or for passive channels (probes get se sent only after | |
4797 | * hearing clear Rx packet).*/ | |
4798 | if (IWL_UCODE_API(priv->ucode_ver) >= 2) { | |
4799 | if (n_probes) | |
4800 | scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes); | |
4801 | } else { | |
4802 | /* uCode v1 does not allow setting direct probe bits on | |
4803 | * passive channel. */ | |
4804 | if ((scan_ch->type & 1) && n_probes) | |
4805 | scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes); | |
4806 | } | |
b481de9c | 4807 | |
9fbab516 | 4808 | /* Set txpower levels to defaults */ |
b481de9c ZY |
4809 | scan_ch->tpc.dsp_atten = 110; |
4810 | /* scan_pwr_info->tpc.dsp_atten; */ | |
4811 | ||
4812 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 4813 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
4814 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
4815 | else { | |
4816 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
4817 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 4818 | * power level: |
8a1b0245 | 4819 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
4820 | */ |
4821 | } | |
4822 | ||
4823 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
4824 | scan_ch->channel, | |
4825 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
4826 | (scan_ch->type & 1) ? | |
4827 | active_dwell : passive_dwell); | |
4828 | ||
4829 | scan_ch++; | |
4830 | added++; | |
4831 | } | |
4832 | ||
4833 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
4834 | return added; | |
4835 | } | |
4836 | ||
bb8c093b | 4837 | static void iwl3945_init_hw_rates(struct iwl3945_priv *priv, |
b481de9c ZY |
4838 | struct ieee80211_rate *rates) |
4839 | { | |
4840 | int i; | |
4841 | ||
4842 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
4843 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
4844 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
4845 | rates[i].hw_value_short = i; | |
4846 | rates[i].flags = 0; | |
4847 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
b481de9c | 4848 | /* |
8318d78a | 4849 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 4850 | */ |
bb8c093b | 4851 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 4852 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 4853 | } |
b481de9c ZY |
4854 | } |
4855 | } | |
4856 | ||
4857 | /** | |
bb8c093b | 4858 | * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom |
b481de9c | 4859 | */ |
bb8c093b | 4860 | static int iwl3945_init_geos(struct iwl3945_priv *priv) |
b481de9c | 4861 | { |
bb8c093b | 4862 | struct iwl3945_channel_info *ch; |
8211ef78 | 4863 | struct ieee80211_supported_band *sband; |
b481de9c ZY |
4864 | struct ieee80211_channel *channels; |
4865 | struct ieee80211_channel *geo_ch; | |
4866 | struct ieee80211_rate *rates; | |
4867 | int i = 0; | |
b481de9c | 4868 | |
8318d78a JB |
4869 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
4870 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
b481de9c ZY |
4871 | IWL_DEBUG_INFO("Geography modes already initialized.\n"); |
4872 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
4873 | return 0; | |
4874 | } | |
4875 | ||
b481de9c ZY |
4876 | channels = kzalloc(sizeof(struct ieee80211_channel) * |
4877 | priv->channel_count, GFP_KERNEL); | |
8318d78a | 4878 | if (!channels) |
b481de9c | 4879 | return -ENOMEM; |
b481de9c | 4880 | |
8211ef78 | 4881 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), |
b481de9c ZY |
4882 | GFP_KERNEL); |
4883 | if (!rates) { | |
b481de9c ZY |
4884 | kfree(channels); |
4885 | return -ENOMEM; | |
4886 | } | |
4887 | ||
b481de9c | 4888 | /* 5.2GHz channels start after the 2.4GHz channels */ |
8211ef78 TW |
4889 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
4890 | sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)]; | |
4891 | /* just OFDM */ | |
4892 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
4893 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
4894 | ||
4895 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
4896 | sband->channels = channels; | |
4897 | /* OFDM & CCK */ | |
4898 | sband->bitrates = rates; | |
4899 | sband->n_bitrates = IWL_RATE_COUNT; | |
b481de9c ZY |
4900 | |
4901 | priv->ieee_channels = channels; | |
4902 | priv->ieee_rates = rates; | |
4903 | ||
bb8c093b | 4904 | iwl3945_init_hw_rates(priv, rates); |
b481de9c | 4905 | |
8211ef78 | 4906 | for (i = 0; i < priv->channel_count; i++) { |
b481de9c ZY |
4907 | ch = &priv->channel_info[i]; |
4908 | ||
8211ef78 TW |
4909 | /* FIXME: might be removed if scan is OK*/ |
4910 | if (!is_channel_valid(ch)) | |
b481de9c | 4911 | continue; |
b481de9c ZY |
4912 | |
4913 | if (is_channel_a_band(ch)) | |
8211ef78 | 4914 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
8318d78a | 4915 | else |
8211ef78 | 4916 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
b481de9c | 4917 | |
8211ef78 TW |
4918 | geo_ch = &sband->channels[sband->n_channels++]; |
4919 | ||
4920 | geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel); | |
8318d78a JB |
4921 | geo_ch->max_power = ch->max_power_avg; |
4922 | geo_ch->max_antenna_gain = 0xff; | |
7b72304d | 4923 | geo_ch->hw_value = ch->channel; |
b481de9c ZY |
4924 | |
4925 | if (is_channel_valid(ch)) { | |
8318d78a JB |
4926 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
4927 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
b481de9c | 4928 | |
8318d78a JB |
4929 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
4930 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
b481de9c ZY |
4931 | |
4932 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
8318d78a | 4933 | geo_ch->flags |= IEEE80211_CHAN_RADAR; |
b481de9c ZY |
4934 | |
4935 | if (ch->max_power_avg > priv->max_channel_txpower_limit) | |
4936 | priv->max_channel_txpower_limit = | |
4937 | ch->max_power_avg; | |
8211ef78 | 4938 | } else { |
8318d78a | 4939 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
8211ef78 TW |
4940 | } |
4941 | ||
4942 | /* Save flags for reg domain usage */ | |
4943 | geo_ch->orig_flags = geo_ch->flags; | |
4944 | ||
4945 | IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n", | |
4946 | ch->channel, geo_ch->center_freq, | |
4947 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
4948 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
4949 | "restricted" : "valid", | |
4950 | geo_ch->flags); | |
b481de9c ZY |
4951 | } |
4952 | ||
82b9a121 TW |
4953 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
4954 | priv->cfg->sku & IWL_SKU_A) { | |
b481de9c ZY |
4955 | printk(KERN_INFO DRV_NAME |
4956 | ": Incorrectly detected BG card as ABG. Please send " | |
4957 | "your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
4958 | priv->pci_dev->device, priv->pci_dev->subsystem_device); | |
82b9a121 | 4959 | priv->cfg->sku &= ~IWL_SKU_A; |
b481de9c ZY |
4960 | } |
4961 | ||
4962 | printk(KERN_INFO DRV_NAME | |
4963 | ": Tunable channels: %d 802.11bg, %d 802.11a channels\n", | |
8318d78a JB |
4964 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
4965 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
b481de9c | 4966 | |
e0e0a67e JL |
4967 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
4968 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
4969 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
4970 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
4971 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
4972 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
b481de9c | 4973 | |
b481de9c ZY |
4974 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
4975 | ||
4976 | return 0; | |
4977 | } | |
4978 | ||
849e0dce RC |
4979 | /* |
4980 | * iwl3945_free_geos - undo allocations in iwl3945_init_geos | |
4981 | */ | |
4982 | static void iwl3945_free_geos(struct iwl3945_priv *priv) | |
4983 | { | |
849e0dce RC |
4984 | kfree(priv->ieee_channels); |
4985 | kfree(priv->ieee_rates); | |
4986 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
4987 | } | |
4988 | ||
b481de9c ZY |
4989 | /****************************************************************************** |
4990 | * | |
4991 | * uCode download functions | |
4992 | * | |
4993 | ******************************************************************************/ | |
4994 | ||
bb8c093b | 4995 | static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv *priv) |
b481de9c | 4996 | { |
98c92211 TW |
4997 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
4998 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
4999 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
5000 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
5001 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
5002 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
5003 | } |
5004 | ||
5005 | /** | |
bb8c093b | 5006 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5007 | * looking at all data. |
5008 | */ | |
3ac7f146 | 5009 | static int iwl3945_verify_inst_full(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5010 | { |
5011 | u32 val; | |
5012 | u32 save_len = len; | |
5013 | int rc = 0; | |
5014 | u32 errcnt; | |
5015 | ||
5016 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5017 | ||
bb8c093b | 5018 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5019 | if (rc) |
5020 | return rc; | |
5021 | ||
bb8c093b | 5022 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND); |
b481de9c ZY |
5023 | |
5024 | errcnt = 0; | |
5025 | for (; len > 0; len -= sizeof(u32), image++) { | |
5026 | /* read data comes through single port, auto-incr addr */ | |
5027 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5028 | * if IWL_DL_IO is set */ | |
bb8c093b | 5029 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5030 | if (val != le32_to_cpu(*image)) { |
5031 | IWL_ERROR("uCode INST section is invalid at " | |
5032 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5033 | save_len - len, val, le32_to_cpu(*image)); | |
5034 | rc = -EIO; | |
5035 | errcnt++; | |
5036 | if (errcnt >= 20) | |
5037 | break; | |
5038 | } | |
5039 | } | |
5040 | ||
bb8c093b | 5041 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5042 | |
5043 | if (!errcnt) | |
bc434dd2 | 5044 | IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n"); |
b481de9c ZY |
5045 | |
5046 | return rc; | |
5047 | } | |
5048 | ||
5049 | ||
5050 | /** | |
bb8c093b | 5051 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5052 | * using sample data 100 bytes apart. If these sample points are good, |
5053 | * it's a pretty good bet that everything between them is good, too. | |
5054 | */ | |
bb8c093b | 5055 | static int iwl3945_verify_inst_sparse(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5056 | { |
5057 | u32 val; | |
5058 | int rc = 0; | |
5059 | u32 errcnt = 0; | |
5060 | u32 i; | |
5061 | ||
5062 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5063 | ||
bb8c093b | 5064 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5065 | if (rc) |
5066 | return rc; | |
5067 | ||
5068 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
5069 | /* read data comes through single port, auto-incr addr */ | |
5070 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5071 | * if IWL_DL_IO is set */ | |
bb8c093b | 5072 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
b481de9c | 5073 | i + RTC_INST_LOWER_BOUND); |
bb8c093b | 5074 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5075 | if (val != le32_to_cpu(*image)) { |
5076 | #if 0 /* Enable this if you want to see details */ | |
5077 | IWL_ERROR("uCode INST section is invalid at " | |
5078 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5079 | i, val, *image); | |
5080 | #endif | |
5081 | rc = -EIO; | |
5082 | errcnt++; | |
5083 | if (errcnt >= 3) | |
5084 | break; | |
5085 | } | |
5086 | } | |
5087 | ||
bb8c093b | 5088 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5089 | |
5090 | return rc; | |
5091 | } | |
5092 | ||
5093 | ||
5094 | /** | |
bb8c093b | 5095 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
5096 | * and verify its contents |
5097 | */ | |
bb8c093b | 5098 | static int iwl3945_verify_ucode(struct iwl3945_priv *priv) |
b481de9c ZY |
5099 | { |
5100 | __le32 *image; | |
5101 | u32 len; | |
5102 | int rc = 0; | |
5103 | ||
5104 | /* Try bootstrap */ | |
5105 | image = (__le32 *)priv->ucode_boot.v_addr; | |
5106 | len = priv->ucode_boot.len; | |
bb8c093b | 5107 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5108 | if (rc == 0) { |
5109 | IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n"); | |
5110 | return 0; | |
5111 | } | |
5112 | ||
5113 | /* Try initialize */ | |
5114 | image = (__le32 *)priv->ucode_init.v_addr; | |
5115 | len = priv->ucode_init.len; | |
bb8c093b | 5116 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5117 | if (rc == 0) { |
5118 | IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n"); | |
5119 | return 0; | |
5120 | } | |
5121 | ||
5122 | /* Try runtime/protocol */ | |
5123 | image = (__le32 *)priv->ucode_code.v_addr; | |
5124 | len = priv->ucode_code.len; | |
bb8c093b | 5125 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5126 | if (rc == 0) { |
5127 | IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n"); | |
5128 | return 0; | |
5129 | } | |
5130 | ||
5131 | IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); | |
5132 | ||
9fbab516 BC |
5133 | /* Since nothing seems to match, show first several data entries in |
5134 | * instruction SRAM, so maybe visual inspection will give a clue. | |
5135 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
5136 | image = (__le32 *)priv->ucode_boot.v_addr; |
5137 | len = priv->ucode_boot.len; | |
bb8c093b | 5138 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
5139 | |
5140 | return rc; | |
5141 | } | |
5142 | ||
5143 | ||
5144 | /* check contents of special bootstrap uCode SRAM */ | |
bb8c093b | 5145 | static int iwl3945_verify_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5146 | { |
5147 | __le32 *image = priv->ucode_boot.v_addr; | |
5148 | u32 len = priv->ucode_boot.len; | |
5149 | u32 reg; | |
5150 | u32 val; | |
5151 | ||
5152 | IWL_DEBUG_INFO("Begin verify bsm\n"); | |
5153 | ||
5154 | /* verify BSM SRAM contents */ | |
bb8c093b | 5155 | val = iwl3945_read_prph(priv, BSM_WR_DWCOUNT_REG); |
b481de9c ZY |
5156 | for (reg = BSM_SRAM_LOWER_BOUND; |
5157 | reg < BSM_SRAM_LOWER_BOUND + len; | |
3ac7f146 | 5158 | reg += sizeof(u32), image++) { |
bb8c093b | 5159 | val = iwl3945_read_prph(priv, reg); |
b481de9c ZY |
5160 | if (val != le32_to_cpu(*image)) { |
5161 | IWL_ERROR("BSM uCode verification failed at " | |
5162 | "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", | |
5163 | BSM_SRAM_LOWER_BOUND, | |
5164 | reg - BSM_SRAM_LOWER_BOUND, len, | |
5165 | val, le32_to_cpu(*image)); | |
5166 | return -EIO; | |
5167 | } | |
5168 | } | |
5169 | ||
5170 | IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n"); | |
5171 | ||
5172 | return 0; | |
5173 | } | |
5174 | ||
5175 | /** | |
bb8c093b | 5176 | * iwl3945_load_bsm - Load bootstrap instructions |
b481de9c ZY |
5177 | * |
5178 | * BSM operation: | |
5179 | * | |
5180 | * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program | |
5181 | * in special SRAM that does not power down during RFKILL. When powering back | |
5182 | * up after power-saving sleeps (or during initial uCode load), the BSM loads | |
5183 | * the bootstrap program into the on-board processor, and starts it. | |
5184 | * | |
5185 | * The bootstrap program loads (via DMA) instructions and data for a new | |
5186 | * program from host DRAM locations indicated by the host driver in the | |
5187 | * BSM_DRAM_* registers. Once the new program is loaded, it starts | |
5188 | * automatically. | |
5189 | * | |
5190 | * When initializing the NIC, the host driver points the BSM to the | |
5191 | * "initialize" uCode image. This uCode sets up some internal data, then | |
5192 | * notifies host via "initialize alive" that it is complete. | |
5193 | * | |
5194 | * The host then replaces the BSM_DRAM_* pointer values to point to the | |
5195 | * normal runtime uCode instructions and a backup uCode data cache buffer | |
5196 | * (filled initially with starting data values for the on-board processor), | |
5197 | * then triggers the "initialize" uCode to load and launch the runtime uCode, | |
5198 | * which begins normal operation. | |
5199 | * | |
5200 | * When doing a power-save shutdown, runtime uCode saves data SRAM into | |
5201 | * the backup data cache in DRAM before SRAM is powered down. | |
5202 | * | |
5203 | * When powering back up, the BSM loads the bootstrap program. This reloads | |
5204 | * the runtime uCode instructions and the backup data cache into SRAM, | |
5205 | * and re-launches the runtime uCode from where it left off. | |
5206 | */ | |
bb8c093b | 5207 | static int iwl3945_load_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5208 | { |
5209 | __le32 *image = priv->ucode_boot.v_addr; | |
5210 | u32 len = priv->ucode_boot.len; | |
5211 | dma_addr_t pinst; | |
5212 | dma_addr_t pdata; | |
5213 | u32 inst_len; | |
5214 | u32 data_len; | |
5215 | int rc; | |
5216 | int i; | |
5217 | u32 done; | |
5218 | u32 reg_offset; | |
5219 | ||
5220 | IWL_DEBUG_INFO("Begin load bsm\n"); | |
5221 | ||
5222 | /* make sure bootstrap program is no larger than BSM's SRAM size */ | |
5223 | if (len > IWL_MAX_BSM_SIZE) | |
5224 | return -EINVAL; | |
5225 | ||
5226 | /* Tell bootstrap uCode where to find the "Initialize" uCode | |
9fbab516 | 5227 | * in host DRAM ... host DRAM physical address bits 31:0 for 3945. |
bb8c093b | 5228 | * NOTE: iwl3945_initialize_alive_start() will replace these values, |
b481de9c ZY |
5229 | * after the "initialize" uCode has run, to point to |
5230 | * runtime/protocol instructions and backup data cache. */ | |
5231 | pinst = priv->ucode_init.p_addr; | |
5232 | pdata = priv->ucode_init_data.p_addr; | |
5233 | inst_len = priv->ucode_init.len; | |
5234 | data_len = priv->ucode_init_data.len; | |
5235 | ||
bb8c093b | 5236 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5237 | if (rc) |
5238 | return rc; | |
5239 | ||
bb8c093b CH |
5240 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5241 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5242 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); | |
5243 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); | |
b481de9c ZY |
5244 | |
5245 | /* Fill BSM memory with bootstrap instructions */ | |
5246 | for (reg_offset = BSM_SRAM_LOWER_BOUND; | |
5247 | reg_offset < BSM_SRAM_LOWER_BOUND + len; | |
5248 | reg_offset += sizeof(u32), image++) | |
bb8c093b | 5249 | _iwl3945_write_prph(priv, reg_offset, |
b481de9c ZY |
5250 | le32_to_cpu(*image)); |
5251 | ||
bb8c093b | 5252 | rc = iwl3945_verify_bsm(priv); |
b481de9c | 5253 | if (rc) { |
bb8c093b | 5254 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5255 | return rc; |
5256 | } | |
5257 | ||
5258 | /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ | |
bb8c093b CH |
5259 | iwl3945_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); |
5260 | iwl3945_write_prph(priv, BSM_WR_MEM_DST_REG, | |
b481de9c | 5261 | RTC_INST_LOWER_BOUND); |
bb8c093b | 5262 | iwl3945_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); |
b481de9c ZY |
5263 | |
5264 | /* Load bootstrap code into instruction SRAM now, | |
5265 | * to prepare to load "initialize" uCode */ | |
bb8c093b | 5266 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5267 | BSM_WR_CTRL_REG_BIT_START); |
5268 | ||
5269 | /* Wait for load of bootstrap uCode to finish */ | |
5270 | for (i = 0; i < 100; i++) { | |
bb8c093b | 5271 | done = iwl3945_read_prph(priv, BSM_WR_CTRL_REG); |
b481de9c ZY |
5272 | if (!(done & BSM_WR_CTRL_REG_BIT_START)) |
5273 | break; | |
5274 | udelay(10); | |
5275 | } | |
5276 | if (i < 100) | |
5277 | IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i); | |
5278 | else { | |
5279 | IWL_ERROR("BSM write did not complete!\n"); | |
5280 | return -EIO; | |
5281 | } | |
5282 | ||
5283 | /* Enable future boot loads whenever power management unit triggers it | |
5284 | * (e.g. when powering back up after power-save shutdown) */ | |
bb8c093b | 5285 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5286 | BSM_WR_CTRL_REG_BIT_START_EN); |
5287 | ||
bb8c093b | 5288 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5289 | |
5290 | return 0; | |
5291 | } | |
5292 | ||
bb8c093b | 5293 | static void iwl3945_nic_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5294 | { |
5295 | /* Remove all resets to allow NIC to operate */ | |
bb8c093b | 5296 | iwl3945_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
5297 | } |
5298 | ||
5299 | /** | |
bb8c093b | 5300 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
5301 | * |
5302 | * Copy into buffers for card to fetch via bus-mastering | |
5303 | */ | |
bb8c093b | 5304 | static int iwl3945_read_ucode(struct iwl3945_priv *priv) |
b481de9c | 5305 | { |
bb8c093b | 5306 | struct iwl3945_ucode *ucode; |
a0987a8d | 5307 | int ret = -EINVAL, index; |
b481de9c ZY |
5308 | const struct firmware *ucode_raw; |
5309 | /* firmware file name contains uCode/driver compatibility version */ | |
a0987a8d RC |
5310 | const char *name_pre = priv->cfg->fw_name_pre; |
5311 | const unsigned int api_max = priv->cfg->ucode_api_max; | |
5312 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
5313 | char buf[25]; | |
b481de9c ZY |
5314 | u8 *src; |
5315 | size_t len; | |
a0987a8d | 5316 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
b481de9c ZY |
5317 | |
5318 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
5319 | * request_firmware() is synchronous, file is in memory on return. */ | |
a0987a8d RC |
5320 | for (index = api_max; index >= api_min; index--) { |
5321 | sprintf(buf, "%s%u%s", name_pre, index, ".ucode"); | |
5322 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); | |
5323 | if (ret < 0) { | |
5324 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
5325 | buf, ret); | |
5326 | if (ret == -ENOENT) | |
5327 | continue; | |
5328 | else | |
5329 | goto error; | |
5330 | } else { | |
5331 | if (index < api_max) | |
5332 | IWL_ERROR("Loaded firmware %s, which is deprecated. Please use API v%u instead.\n", | |
5333 | buf, api_max); | |
5334 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
5335 | buf, ucode_raw->size); | |
5336 | break; | |
5337 | } | |
b481de9c ZY |
5338 | } |
5339 | ||
a0987a8d RC |
5340 | if (ret < 0) |
5341 | goto error; | |
b481de9c ZY |
5342 | |
5343 | /* Make sure that we got at least our header! */ | |
5344 | if (ucode_raw->size < sizeof(*ucode)) { | |
5345 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 5346 | ret = -EINVAL; |
b481de9c ZY |
5347 | goto err_release; |
5348 | } | |
5349 | ||
5350 | /* Data from ucode file: header followed by uCode images */ | |
5351 | ucode = (void *)ucode_raw->data; | |
5352 | ||
c02b3acd | 5353 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
a0987a8d | 5354 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
b481de9c ZY |
5355 | inst_size = le32_to_cpu(ucode->inst_size); |
5356 | data_size = le32_to_cpu(ucode->data_size); | |
5357 | init_size = le32_to_cpu(ucode->init_size); | |
5358 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
5359 | boot_size = le32_to_cpu(ucode->boot_size); | |
5360 | ||
a0987a8d RC |
5361 | /* api_ver should match the api version forming part of the |
5362 | * firmware filename ... but we don't check for that and only rely | |
5363 | * on the API version read from firware header from here on forward */ | |
5364 | ||
5365 | if (api_ver < api_min || api_ver > api_max) { | |
5366 | IWL_ERROR("Driver unable to support your firmware API. " | |
5367 | "Driver supports v%u, firmware is v%u.\n", | |
5368 | api_max, api_ver); | |
5369 | priv->ucode_ver = 0; | |
5370 | ret = -EINVAL; | |
5371 | goto err_release; | |
5372 | } | |
5373 | if (api_ver != api_max) | |
5374 | IWL_ERROR("Firmware has old API version. Expected %u, " | |
5375 | "got %u. New firmware can be obtained " | |
5376 | "from http://www.intellinuxwireless.org.\n", | |
5377 | api_max, api_ver); | |
5378 | ||
5379 | printk(KERN_INFO DRV_NAME " loaded firmware version %u.%u.%u.%u\n", | |
c02b3acd CR |
5380 | IWL_UCODE_MAJOR(priv->ucode_ver), |
5381 | IWL_UCODE_MINOR(priv->ucode_ver), | |
5382 | IWL_UCODE_API(priv->ucode_ver), | |
5383 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
a0987a8d RC |
5384 | IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n", |
5385 | priv->ucode_ver); | |
bc434dd2 IS |
5386 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size); |
5387 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size); | |
5388 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size); | |
5389 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size); | |
5390 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size); | |
b481de9c | 5391 | |
a0987a8d | 5392 | |
b481de9c ZY |
5393 | /* Verify size of file vs. image size info in file's header */ |
5394 | if (ucode_raw->size < sizeof(*ucode) + | |
5395 | inst_size + data_size + init_size + | |
5396 | init_data_size + boot_size) { | |
5397 | ||
5398 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
5399 | (int)ucode_raw->size); | |
90e759d1 | 5400 | ret = -EINVAL; |
b481de9c ZY |
5401 | goto err_release; |
5402 | } | |
5403 | ||
5404 | /* Verify that uCode images will fit in card's SRAM */ | |
5405 | if (inst_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5406 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
5407 | inst_size); | |
5408 | ret = -EINVAL; | |
b481de9c ZY |
5409 | goto err_release; |
5410 | } | |
5411 | ||
5412 | if (data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5413 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
5414 | data_size); | |
5415 | ret = -EINVAL; | |
b481de9c ZY |
5416 | goto err_release; |
5417 | } | |
5418 | if (init_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5419 | IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n", |
5420 | init_size); | |
5421 | ret = -EINVAL; | |
b481de9c ZY |
5422 | goto err_release; |
5423 | } | |
5424 | if (init_data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5425 | IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n", |
5426 | init_data_size); | |
5427 | ret = -EINVAL; | |
b481de9c ZY |
5428 | goto err_release; |
5429 | } | |
5430 | if (boot_size > IWL_MAX_BSM_SIZE) { | |
90e759d1 TW |
5431 | IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n", |
5432 | boot_size); | |
5433 | ret = -EINVAL; | |
b481de9c ZY |
5434 | goto err_release; |
5435 | } | |
5436 | ||
5437 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
5438 | ||
5439 | /* Runtime instructions and 2 copies of data: | |
5440 | * 1) unmodified from disk | |
5441 | * 2) backup cache for save/restore during power-downs */ | |
5442 | priv->ucode_code.len = inst_size; | |
98c92211 | 5443 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
5444 | |
5445 | priv->ucode_data.len = data_size; | |
98c92211 | 5446 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
5447 | |
5448 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 5449 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 5450 | |
90e759d1 TW |
5451 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
5452 | !priv->ucode_data_backup.v_addr) | |
5453 | goto err_pci_alloc; | |
b481de9c ZY |
5454 | |
5455 | /* Initialization instructions and data */ | |
90e759d1 TW |
5456 | if (init_size && init_data_size) { |
5457 | priv->ucode_init.len = init_size; | |
98c92211 | 5458 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
5459 | |
5460 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 5461 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
5462 | |
5463 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
5464 | goto err_pci_alloc; | |
5465 | } | |
b481de9c ZY |
5466 | |
5467 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
5468 | if (boot_size) { |
5469 | priv->ucode_boot.len = boot_size; | |
98c92211 | 5470 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 5471 | |
90e759d1 TW |
5472 | if (!priv->ucode_boot.v_addr) |
5473 | goto err_pci_alloc; | |
5474 | } | |
b481de9c ZY |
5475 | |
5476 | /* Copy images into buffers for card's bus-master reads ... */ | |
5477 | ||
5478 | /* Runtime instructions (first block of data in file) */ | |
5479 | src = &ucode->data[0]; | |
5480 | len = priv->ucode_code.len; | |
90e759d1 | 5481 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
5482 | memcpy(priv->ucode_code.v_addr, src, len); |
5483 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
5484 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
5485 | ||
5486 | /* Runtime data (2nd block) | |
bb8c093b | 5487 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
b481de9c ZY |
5488 | src = &ucode->data[inst_size]; |
5489 | len = priv->ucode_data.len; | |
90e759d1 | 5490 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
5491 | memcpy(priv->ucode_data.v_addr, src, len); |
5492 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
5493 | ||
5494 | /* Initialization instructions (3rd block) */ | |
5495 | if (init_size) { | |
5496 | src = &ucode->data[inst_size + data_size]; | |
5497 | len = priv->ucode_init.len; | |
90e759d1 TW |
5498 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
5499 | len); | |
b481de9c ZY |
5500 | memcpy(priv->ucode_init.v_addr, src, len); |
5501 | } | |
5502 | ||
5503 | /* Initialization data (4th block) */ | |
5504 | if (init_data_size) { | |
5505 | src = &ucode->data[inst_size + data_size + init_size]; | |
5506 | len = priv->ucode_init_data.len; | |
5507 | IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n", | |
5508 | (int)len); | |
5509 | memcpy(priv->ucode_init_data.v_addr, src, len); | |
5510 | } | |
5511 | ||
5512 | /* Bootstrap instructions (5th block) */ | |
5513 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
5514 | len = priv->ucode_boot.len; | |
5515 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n", | |
5516 | (int)len); | |
5517 | memcpy(priv->ucode_boot.v_addr, src, len); | |
5518 | ||
5519 | /* We have our copies now, allow OS release its copies */ | |
5520 | release_firmware(ucode_raw); | |
5521 | return 0; | |
5522 | ||
5523 | err_pci_alloc: | |
5524 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 5525 | ret = -ENOMEM; |
bb8c093b | 5526 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
5527 | |
5528 | err_release: | |
5529 | release_firmware(ucode_raw); | |
5530 | ||
5531 | error: | |
90e759d1 | 5532 | return ret; |
b481de9c ZY |
5533 | } |
5534 | ||
5535 | ||
5536 | /** | |
bb8c093b | 5537 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
5538 | * |
5539 | * Tell initialization uCode where to find runtime uCode. | |
5540 | * | |
5541 | * BSM registers initially contain pointers to initialization uCode. | |
5542 | * We need to replace them to load runtime uCode inst and data, | |
5543 | * and to save runtime data when powering down. | |
5544 | */ | |
bb8c093b | 5545 | static int iwl3945_set_ucode_ptrs(struct iwl3945_priv *priv) |
b481de9c ZY |
5546 | { |
5547 | dma_addr_t pinst; | |
5548 | dma_addr_t pdata; | |
5549 | int rc = 0; | |
5550 | unsigned long flags; | |
5551 | ||
5552 | /* bits 31:0 for 3945 */ | |
5553 | pinst = priv->ucode_code.p_addr; | |
5554 | pdata = priv->ucode_data_backup.p_addr; | |
5555 | ||
5556 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5557 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5558 | if (rc) { |
5559 | spin_unlock_irqrestore(&priv->lock, flags); | |
5560 | return rc; | |
5561 | } | |
5562 | ||
5563 | /* Tell bootstrap uCode where to find image to load */ | |
bb8c093b CH |
5564 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5565 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5566 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
5567 | priv->ucode_data.len); |
5568 | ||
a96a27f9 | 5569 | /* Inst byte count must be last to set up, bit 31 signals uCode |
b481de9c | 5570 | * that all new ptr/size info is in place */ |
bb8c093b | 5571 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
5572 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
5573 | ||
bb8c093b | 5574 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5575 | |
5576 | spin_unlock_irqrestore(&priv->lock, flags); | |
5577 | ||
5578 | IWL_DEBUG_INFO("Runtime uCode pointers are set.\n"); | |
5579 | ||
5580 | return rc; | |
5581 | } | |
5582 | ||
5583 | /** | |
bb8c093b | 5584 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
5585 | * |
5586 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
5587 | * | |
b481de9c | 5588 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 5589 | */ |
bb8c093b | 5590 | static void iwl3945_init_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5591 | { |
5592 | /* Check alive response for "valid" sign from uCode */ | |
5593 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
5594 | /* We had an error bringing up the hardware, so take it | |
5595 | * all the way back down so we can try again */ | |
5596 | IWL_DEBUG_INFO("Initialize Alive failed.\n"); | |
5597 | goto restart; | |
5598 | } | |
5599 | ||
5600 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
5601 | * This is a paranoid check, because we would not have gotten the | |
5602 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 5603 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5604 | /* Runtime instruction load was bad; |
5605 | * take it all the way back down so we can try again */ | |
5606 | IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n"); | |
5607 | goto restart; | |
5608 | } | |
5609 | ||
5610 | /* Send pointers to protocol/runtime uCode image ... init code will | |
5611 | * load and launch runtime uCode, which will send us another "Alive" | |
5612 | * notification. */ | |
5613 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
bb8c093b | 5614 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
5615 | /* Runtime instruction load won't happen; |
5616 | * take it all the way back down so we can try again */ | |
5617 | IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n"); | |
5618 | goto restart; | |
5619 | } | |
5620 | return; | |
5621 | ||
5622 | restart: | |
5623 | queue_work(priv->workqueue, &priv->restart); | |
5624 | } | |
5625 | ||
5626 | ||
9bdf5eca MA |
5627 | /* temporary */ |
5628 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, | |
5629 | struct sk_buff *skb); | |
5630 | ||
b481de9c | 5631 | /** |
bb8c093b | 5632 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 5633 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 5634 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 5635 | */ |
bb8c093b | 5636 | static void iwl3945_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5637 | { |
5638 | int rc = 0; | |
5639 | int thermal_spin = 0; | |
5640 | u32 rfkill; | |
5641 | ||
5642 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
5643 | ||
5644 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
5645 | /* We had an error bringing up the hardware, so take it | |
5646 | * all the way back down so we can try again */ | |
5647 | IWL_DEBUG_INFO("Alive failed.\n"); | |
5648 | goto restart; | |
5649 | } | |
5650 | ||
5651 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
5652 | * This is a paranoid check, because we would not have gotten the | |
5653 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 5654 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5655 | /* Runtime instruction load was bad; |
5656 | * take it all the way back down so we can try again */ | |
5657 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
5658 | goto restart; | |
5659 | } | |
5660 | ||
bb8c093b | 5661 | iwl3945_clear_stations_table(priv); |
b481de9c | 5662 | |
bb8c093b | 5663 | rc = iwl3945_grab_nic_access(priv); |
b481de9c | 5664 | if (rc) { |
a96a27f9 | 5665 | IWL_WARNING("Can not read RFKILL status from adapter\n"); |
b481de9c ZY |
5666 | return; |
5667 | } | |
5668 | ||
bb8c093b | 5669 | rfkill = iwl3945_read_prph(priv, APMG_RFKILL_REG); |
b481de9c | 5670 | IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill); |
bb8c093b | 5671 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5672 | |
5673 | if (rfkill & 0x1) { | |
5674 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a96a27f9 | 5675 | /* if RFKILL is not on, then wait for thermal |
b481de9c | 5676 | * sensor in adapter to kick in */ |
bb8c093b | 5677 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
5678 | thermal_spin++; |
5679 | udelay(10); | |
5680 | } | |
5681 | ||
5682 | if (thermal_spin) | |
5683 | IWL_DEBUG_INFO("Thermal calibration took %dus\n", | |
5684 | thermal_spin * 10); | |
5685 | } else | |
5686 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5687 | ||
9fbab516 | 5688 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
5689 | set_bit(STATUS_ALIVE, &priv->status); |
5690 | ||
5691 | /* Clear out the uCode error bit if it is set */ | |
5692 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
5693 | ||
bb8c093b | 5694 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
5695 | return; |
5696 | ||
36d6825b | 5697 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
5698 | |
5699 | priv->active_rate = priv->rates_mask; | |
5700 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
5701 | ||
bb8c093b | 5702 | iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode)); |
b481de9c | 5703 | |
bb8c093b CH |
5704 | if (iwl3945_is_associated(priv)) { |
5705 | struct iwl3945_rxon_cmd *active_rxon = | |
5706 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); | |
b481de9c ZY |
5707 | |
5708 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
5709 | sizeof(priv->staging_rxon)); | |
5710 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5711 | } else { | |
5712 | /* Initialize our rx_config data */ | |
60294de3 | 5713 | iwl3945_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
5714 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
5715 | } | |
5716 | ||
9fbab516 | 5717 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 5718 | iwl3945_send_bt_config(priv); |
b481de9c ZY |
5719 | |
5720 | /* Configure the adapter for unassociated operation */ | |
bb8c093b | 5721 | iwl3945_commit_rxon(priv); |
b481de9c | 5722 | |
b481de9c ZY |
5723 | iwl3945_reg_txpower_periodic(priv); |
5724 | ||
fe00b5a5 RC |
5725 | iwl3945_led_register(priv); |
5726 | ||
b481de9c | 5727 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 5728 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 5729 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
5730 | |
5731 | if (priv->error_recovering) | |
bb8c093b | 5732 | iwl3945_error_recovery(priv); |
b481de9c | 5733 | |
9bdf5eca MA |
5734 | /* reassociate for ADHOC mode */ |
5735 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
5736 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
5737 | priv->vif); | |
5738 | if (beacon) | |
5739 | iwl3945_mac_beacon_update(priv->hw, beacon); | |
5740 | } | |
5741 | ||
b481de9c ZY |
5742 | return; |
5743 | ||
5744 | restart: | |
5745 | queue_work(priv->workqueue, &priv->restart); | |
5746 | } | |
5747 | ||
bb8c093b | 5748 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv); |
b481de9c | 5749 | |
bb8c093b | 5750 | static void __iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5751 | { |
5752 | unsigned long flags; | |
5753 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
5754 | struct ieee80211_conf *conf = NULL; | |
5755 | ||
5756 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
5757 | ||
5758 | conf = ieee80211_get_hw_conf(priv->hw); | |
5759 | ||
5760 | if (!exit_pending) | |
5761 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5762 | ||
ab53d8af | 5763 | iwl3945_led_unregister(priv); |
bb8c093b | 5764 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
5765 | |
5766 | /* Unblock any waiting calls */ | |
5767 | wake_up_interruptible_all(&priv->wait_command_queue); | |
5768 | ||
b481de9c ZY |
5769 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
5770 | * exiting the module */ | |
5771 | if (!exit_pending) | |
5772 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
5773 | ||
5774 | /* stop and reset the on-board processor */ | |
bb8c093b | 5775 | iwl3945_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
5776 | |
5777 | /* tell the device to stop sending interrupts */ | |
0359facc | 5778 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 5779 | iwl3945_disable_interrupts(priv); |
0359facc MA |
5780 | spin_unlock_irqrestore(&priv->lock, flags); |
5781 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
5782 | |
5783 | if (priv->mac80211_registered) | |
5784 | ieee80211_stop_queues(priv->hw); | |
5785 | ||
bb8c093b | 5786 | /* If we have not previously called iwl3945_init() then |
b481de9c | 5787 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
bb8c093b | 5788 | if (!iwl3945_is_init(priv)) { |
b481de9c ZY |
5789 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
5790 | STATUS_RF_KILL_HW | | |
5791 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5792 | STATUS_RF_KILL_SW | | |
9788864e RC |
5793 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5794 | STATUS_GEO_CONFIGURED | | |
b481de9c | 5795 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
ebef2008 AK |
5796 | STATUS_IN_SUSPEND | |
5797 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5798 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5799 | goto exit; |
5800 | } | |
5801 | ||
5802 | /* ...otherwise clear out all the status bits but the RF Kill and | |
5803 | * SUSPEND bits and continue taking the NIC down. */ | |
5804 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
5805 | STATUS_RF_KILL_HW | | |
5806 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
5807 | STATUS_RF_KILL_SW | | |
9788864e RC |
5808 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
5809 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
5810 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
5811 | STATUS_IN_SUSPEND | | |
5812 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
ebef2008 AK |
5813 | STATUS_FW_ERROR | |
5814 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
5815 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
5816 | |
5817 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5818 | iwl3945_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
5819 | spin_unlock_irqrestore(&priv->lock, flags); |
5820 | ||
bb8c093b CH |
5821 | iwl3945_hw_txq_ctx_stop(priv); |
5822 | iwl3945_hw_rxq_stop(priv); | |
b481de9c ZY |
5823 | |
5824 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
5825 | if (!iwl3945_grab_nic_access(priv)) { |
5826 | iwl3945_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 5827 | APMG_CLK_VAL_DMA_CLK_RQT); |
bb8c093b | 5828 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5829 | } |
5830 | spin_unlock_irqrestore(&priv->lock, flags); | |
5831 | ||
5832 | udelay(5); | |
5833 | ||
bb8c093b CH |
5834 | iwl3945_hw_nic_stop_master(priv); |
5835 | iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); | |
5836 | iwl3945_hw_nic_reset(priv); | |
b481de9c ZY |
5837 | |
5838 | exit: | |
bb8c093b | 5839 | memset(&priv->card_alive, 0, sizeof(struct iwl3945_alive_resp)); |
b481de9c ZY |
5840 | |
5841 | if (priv->ibss_beacon) | |
5842 | dev_kfree_skb(priv->ibss_beacon); | |
5843 | priv->ibss_beacon = NULL; | |
5844 | ||
5845 | /* clear out any free frames */ | |
bb8c093b | 5846 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
5847 | } |
5848 | ||
bb8c093b | 5849 | static void iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
5850 | { |
5851 | mutex_lock(&priv->mutex); | |
bb8c093b | 5852 | __iwl3945_down(priv); |
b481de9c | 5853 | mutex_unlock(&priv->mutex); |
b24d22b1 | 5854 | |
bb8c093b | 5855 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
5856 | } |
5857 | ||
5858 | #define MAX_HW_RESTARTS 5 | |
5859 | ||
bb8c093b | 5860 | static int __iwl3945_up(struct iwl3945_priv *priv) |
b481de9c ZY |
5861 | { |
5862 | int rc, i; | |
5863 | ||
5864 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
5865 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
5866 | return -EIO; | |
5867 | } | |
5868 | ||
5869 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
5870 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
5871 | "parameter)\n"); | |
e655b9f0 ZY |
5872 | return -ENODEV; |
5873 | } | |
5874 | ||
e903fbd4 | 5875 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
a96a27f9 | 5876 | IWL_ERROR("ucode not available for device bring up\n"); |
e903fbd4 RC |
5877 | return -EIO; |
5878 | } | |
5879 | ||
e655b9f0 ZY |
5880 | /* If platform's RF_KILL switch is NOT set to KILL */ |
5881 | if (iwl3945_read32(priv, CSR_GP_CNTRL) & | |
5882 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
5883 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
5884 | else { | |
5885 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5886 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
5887 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); | |
5888 | return -ENODEV; | |
5889 | } | |
b481de9c | 5890 | } |
80fcc9e2 | 5891 | |
bb8c093b | 5892 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 5893 | |
bb8c093b | 5894 | rc = iwl3945_hw_nic_init(priv); |
b481de9c ZY |
5895 | if (rc) { |
5896 | IWL_ERROR("Unable to int nic\n"); | |
5897 | return rc; | |
5898 | } | |
5899 | ||
5900 | /* make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
5901 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
5902 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
5903 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
5904 | ||
5905 | /* clear (again), then enable host interrupts */ | |
bb8c093b CH |
5906 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
5907 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
5908 | |
5909 | /* really make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
5910 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
5911 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
5912 | |
5913 | /* Copy original ucode data image from disk into backup cache. | |
5914 | * This will be used to initialize the on-board processor's | |
5915 | * data SRAM for a clean start when the runtime program first loads. */ | |
5916 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 5917 | priv->ucode_data.len); |
b481de9c | 5918 | |
e655b9f0 ZY |
5919 | /* We return success when we resume from suspend and rf_kill is on. */ |
5920 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
5921 | return 0; | |
5922 | ||
b481de9c ZY |
5923 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
5924 | ||
bb8c093b | 5925 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
5926 | |
5927 | /* load bootstrap state machine, | |
5928 | * load bootstrap program into processor's memory, | |
5929 | * prepare to load the "initialize" uCode */ | |
bb8c093b | 5930 | rc = iwl3945_load_bsm(priv); |
b481de9c ZY |
5931 | |
5932 | if (rc) { | |
5933 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc); | |
5934 | continue; | |
5935 | } | |
5936 | ||
5937 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 5938 | iwl3945_nic_start(priv); |
b481de9c | 5939 | |
b481de9c ZY |
5940 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
5941 | ||
5942 | return 0; | |
5943 | } | |
5944 | ||
5945 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 5946 | __iwl3945_down(priv); |
ebef2008 | 5947 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
5948 | |
5949 | /* tried to restart and config the device for as long as our | |
5950 | * patience could withstand */ | |
5951 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
5952 | return -EIO; | |
5953 | } | |
5954 | ||
5955 | ||
5956 | /***************************************************************************** | |
5957 | * | |
5958 | * Workqueue callbacks | |
5959 | * | |
5960 | *****************************************************************************/ | |
5961 | ||
bb8c093b | 5962 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 5963 | { |
bb8c093b CH |
5964 | struct iwl3945_priv *priv = |
5965 | container_of(data, struct iwl3945_priv, init_alive_start.work); | |
b481de9c ZY |
5966 | |
5967 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5968 | return; | |
5969 | ||
5970 | mutex_lock(&priv->mutex); | |
bb8c093b | 5971 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
5972 | mutex_unlock(&priv->mutex); |
5973 | } | |
5974 | ||
bb8c093b | 5975 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 5976 | { |
bb8c093b CH |
5977 | struct iwl3945_priv *priv = |
5978 | container_of(data, struct iwl3945_priv, alive_start.work); | |
b481de9c ZY |
5979 | |
5980 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5981 | return; | |
5982 | ||
5983 | mutex_lock(&priv->mutex); | |
bb8c093b | 5984 | iwl3945_alive_start(priv); |
b481de9c ZY |
5985 | mutex_unlock(&priv->mutex); |
5986 | } | |
5987 | ||
bb8c093b | 5988 | static void iwl3945_bg_rf_kill(struct work_struct *work) |
b481de9c | 5989 | { |
bb8c093b | 5990 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, rf_kill); |
b481de9c ZY |
5991 | |
5992 | wake_up_interruptible(&priv->wait_command_queue); | |
5993 | ||
5994 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
5995 | return; | |
5996 | ||
5997 | mutex_lock(&priv->mutex); | |
5998 | ||
bb8c093b | 5999 | if (!iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6000 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL, |
6001 | "HW and/or SW RF Kill no longer active, restarting " | |
6002 | "device\n"); | |
6003 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6004 | queue_work(priv->workqueue, &priv->restart); | |
6005 | } else { | |
6006 | ||
6007 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
6008 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
6009 | "disabled by SW switch\n"); | |
6010 | else | |
6011 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
6012 | "Kill switch must be turned off for " | |
6013 | "wireless networking to work.\n"); | |
6014 | } | |
ebef2008 | 6015 | |
b481de9c | 6016 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 6017 | iwl3945_rfkill_set_hw_state(priv); |
b481de9c ZY |
6018 | } |
6019 | ||
6020 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) | |
6021 | ||
bb8c093b | 6022 | static void iwl3945_bg_scan_check(struct work_struct *data) |
b481de9c | 6023 | { |
bb8c093b CH |
6024 | struct iwl3945_priv *priv = |
6025 | container_of(data, struct iwl3945_priv, scan_check.work); | |
b481de9c ZY |
6026 | |
6027 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6028 | return; | |
6029 | ||
6030 | mutex_lock(&priv->mutex); | |
6031 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
6032 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6033 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, | |
6034 | "Scan completion watchdog resetting adapter (%dms)\n", | |
6035 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
15e869d8 | 6036 | |
b481de9c | 6037 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 6038 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6039 | } |
6040 | mutex_unlock(&priv->mutex); | |
6041 | } | |
6042 | ||
bb8c093b | 6043 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 6044 | { |
bb8c093b CH |
6045 | struct iwl3945_priv *priv = |
6046 | container_of(data, struct iwl3945_priv, request_scan); | |
6047 | struct iwl3945_host_cmd cmd = { | |
b481de9c | 6048 | .id = REPLY_SCAN_CMD, |
bb8c093b | 6049 | .len = sizeof(struct iwl3945_scan_cmd), |
b481de9c ZY |
6050 | .meta.flags = CMD_SIZE_HUGE, |
6051 | }; | |
6052 | int rc = 0; | |
bb8c093b | 6053 | struct iwl3945_scan_cmd *scan; |
b481de9c | 6054 | struct ieee80211_conf *conf = NULL; |
f9340520 | 6055 | u8 n_probes = 2; |
8318d78a | 6056 | enum ieee80211_band band; |
9387b7ca | 6057 | DECLARE_SSID_BUF(ssid); |
b481de9c ZY |
6058 | |
6059 | conf = ieee80211_get_hw_conf(priv->hw); | |
6060 | ||
6061 | mutex_lock(&priv->mutex); | |
6062 | ||
bb8c093b | 6063 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
6064 | IWL_WARNING("request scan called when driver not ready.\n"); |
6065 | goto done; | |
6066 | } | |
6067 | ||
a96a27f9 | 6068 | /* Make sure the scan wasn't canceled before this queued work |
b481de9c ZY |
6069 | * was given the chance to run... */ |
6070 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
6071 | goto done; | |
6072 | ||
6073 | /* This should never be called or scheduled if there is currently | |
6074 | * a scan active in the hardware. */ | |
6075 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
6076 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
6077 | "Ignoring second request.\n"); | |
6078 | rc = -EIO; | |
6079 | goto done; | |
6080 | } | |
6081 | ||
6082 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
6083 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
6084 | goto done; | |
6085 | } | |
6086 | ||
6087 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6088 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
6089 | goto done; | |
6090 | } | |
6091 | ||
bb8c093b | 6092 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6093 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
6094 | goto done; | |
6095 | } | |
6096 | ||
6097 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6098 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
6099 | goto done; | |
6100 | } | |
6101 | ||
6102 | if (!priv->scan_bands) { | |
6103 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
6104 | goto done; | |
6105 | } | |
6106 | ||
6107 | if (!priv->scan) { | |
bb8c093b | 6108 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + |
b481de9c ZY |
6109 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
6110 | if (!priv->scan) { | |
6111 | rc = -ENOMEM; | |
6112 | goto done; | |
6113 | } | |
6114 | } | |
6115 | scan = priv->scan; | |
bb8c093b | 6116 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
6117 | |
6118 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
6119 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
6120 | ||
bb8c093b | 6121 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
6122 | u16 interval = 0; |
6123 | u32 extra; | |
6124 | u32 suspend_time = 100; | |
6125 | u32 scan_suspend_time = 100; | |
6126 | unsigned long flags; | |
6127 | ||
6128 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
6129 | ||
6130 | spin_lock_irqsave(&priv->lock, flags); | |
6131 | interval = priv->beacon_int; | |
6132 | spin_unlock_irqrestore(&priv->lock, flags); | |
6133 | ||
6134 | scan->suspend_time = 0; | |
15e869d8 | 6135 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
6136 | if (!interval) |
6137 | interval = suspend_time; | |
6138 | /* | |
6139 | * suspend time format: | |
6140 | * 0-19: beacon interval in usec (time before exec.) | |
6141 | * 20-23: 0 | |
6142 | * 24-31: number of beacons (suspend between channels) | |
6143 | */ | |
6144 | ||
6145 | extra = (suspend_time / interval) << 24; | |
6146 | scan_suspend_time = 0xFF0FFFFF & | |
6147 | (extra | ((suspend_time % interval) * 1024)); | |
6148 | ||
6149 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
6150 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
6151 | scan_suspend_time, interval); | |
6152 | } | |
6153 | ||
6154 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
6155 | if (priv->one_direct_scan) { | |
6156 | IWL_DEBUG_SCAN | |
6157 | ("Kicking off one direct scan for '%s'\n", | |
9387b7ca JL |
6158 | print_ssid(ssid, priv->direct_ssid, |
6159 | priv->direct_ssid_len)); | |
b481de9c ZY |
6160 | scan->direct_scan[0].id = WLAN_EID_SSID; |
6161 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
6162 | memcpy(scan->direct_scan[0].ssid, | |
6163 | priv->direct_ssid, priv->direct_ssid_len); | |
f9340520 | 6164 | n_probes++; |
f9340520 | 6165 | } else |
786b4557 | 6166 | IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); |
b481de9c ZY |
6167 | |
6168 | /* We don't build a direct scan probe request; the uCode will do | |
6169 | * that based on the direct_mask added to each channel entry */ | |
6170 | scan->tx_cmd.len = cpu_to_le16( | |
bb8c093b | 6171 | iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data, |
430cfe95 | 6172 | IWL_MAX_SCAN_SIZE - sizeof(*scan))); |
b481de9c ZY |
6173 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
6174 | scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id; | |
6175 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
6176 | ||
6177 | /* flags + rate selection */ | |
6178 | ||
66b5004d | 6179 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
b481de9c ZY |
6180 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
6181 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
6182 | scan->good_CRC_th = 0; | |
8318d78a | 6183 | band = IEEE80211_BAND_2GHZ; |
66b5004d | 6184 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
b481de9c ZY |
6185 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
6186 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 6187 | band = IEEE80211_BAND_5GHZ; |
66b5004d | 6188 | } else { |
b481de9c ZY |
6189 | IWL_WARNING("Invalid scan band count\n"); |
6190 | goto done; | |
6191 | } | |
6192 | ||
6193 | /* select Rx antennas */ | |
6194 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
6195 | ||
05c914fe | 6196 | if (priv->iw_mode == NL80211_IFTYPE_MONITOR) |
b481de9c ZY |
6197 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; |
6198 | ||
f9340520 AK |
6199 | scan->channel_count = |
6200 | iwl3945_get_channels_for_scan(priv, band, 1, /* active */ | |
6201 | n_probes, | |
6202 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c | 6203 | |
14b54336 RC |
6204 | if (scan->channel_count == 0) { |
6205 | IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count); | |
6206 | goto done; | |
6207 | } | |
6208 | ||
b481de9c | 6209 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 6210 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
6211 | cmd.data = scan; |
6212 | scan->len = cpu_to_le16(cmd.len); | |
6213 | ||
6214 | set_bit(STATUS_SCAN_HW, &priv->status); | |
bb8c093b | 6215 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
6216 | if (rc) |
6217 | goto done; | |
6218 | ||
6219 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
6220 | IWL_SCAN_CHECK_WATCHDOG); | |
6221 | ||
6222 | mutex_unlock(&priv->mutex); | |
6223 | return; | |
6224 | ||
6225 | done: | |
2420ebc1 MA |
6226 | /* can not perform scan make sure we clear scanning |
6227 | * bits from status so next scan request can be performed. | |
6228 | * if we dont clear scanning status bit here all next scan | |
6229 | * will fail | |
6230 | */ | |
6231 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
6232 | clear_bit(STATUS_SCANNING, &priv->status); | |
6233 | ||
01ebd063 | 6234 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
6235 | queue_work(priv->workqueue, &priv->scan_completed); |
6236 | mutex_unlock(&priv->mutex); | |
6237 | } | |
6238 | ||
bb8c093b | 6239 | static void iwl3945_bg_up(struct work_struct *data) |
b481de9c | 6240 | { |
bb8c093b | 6241 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, up); |
b481de9c ZY |
6242 | |
6243 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6244 | return; | |
6245 | ||
6246 | mutex_lock(&priv->mutex); | |
bb8c093b | 6247 | __iwl3945_up(priv); |
b481de9c | 6248 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 6249 | iwl3945_rfkill_set_hw_state(priv); |
b481de9c ZY |
6250 | } |
6251 | ||
bb8c093b | 6252 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 6253 | { |
bb8c093b | 6254 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, restart); |
b481de9c ZY |
6255 | |
6256 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6257 | return; | |
6258 | ||
bb8c093b | 6259 | iwl3945_down(priv); |
b481de9c ZY |
6260 | queue_work(priv->workqueue, &priv->up); |
6261 | } | |
6262 | ||
bb8c093b | 6263 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 6264 | { |
bb8c093b CH |
6265 | struct iwl3945_priv *priv = |
6266 | container_of(data, struct iwl3945_priv, rx_replenish); | |
b481de9c ZY |
6267 | |
6268 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6269 | return; | |
6270 | ||
6271 | mutex_lock(&priv->mutex); | |
bb8c093b | 6272 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
6273 | mutex_unlock(&priv->mutex); |
6274 | } | |
6275 | ||
7878a5a4 MA |
6276 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
6277 | ||
cd56d331 | 6278 | static void iwl3945_post_associate(struct iwl3945_priv *priv) |
b481de9c | 6279 | { |
b481de9c ZY |
6280 | int rc = 0; |
6281 | struct ieee80211_conf *conf = NULL; | |
6282 | ||
05c914fe | 6283 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
3ac7f146 | 6284 | IWL_ERROR("%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
6285 | return; |
6286 | } | |
6287 | ||
6288 | ||
e174961c JB |
6289 | IWL_DEBUG_ASSOC("Associated as %d to: %pM\n", |
6290 | priv->assoc_id, priv->active_rxon.bssid_addr); | |
b481de9c ZY |
6291 | |
6292 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6293 | return; | |
6294 | ||
322a9811 | 6295 | if (!priv->vif || !priv->is_open) |
6ef89d0a | 6296 | return; |
322a9811 | 6297 | |
bb8c093b | 6298 | iwl3945_scan_cancel_timeout(priv, 200); |
15e869d8 | 6299 | |
b481de9c ZY |
6300 | conf = ieee80211_get_hw_conf(priv->hw); |
6301 | ||
6302 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6303 | iwl3945_commit_rxon(priv); |
b481de9c | 6304 | |
bb8c093b CH |
6305 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6306 | iwl3945_setup_rxon_timing(priv); | |
6307 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6308 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6309 | if (rc) | |
6310 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6311 | "Attempting to continue.\n"); | |
6312 | ||
6313 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
6314 | ||
6315 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6316 | ||
6317 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
6318 | priv->assoc_id, priv->beacon_int); | |
6319 | ||
6320 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6321 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6322 | else | |
6323 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6324 | ||
6325 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6326 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6327 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
6328 | else | |
6329 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
6330 | ||
05c914fe | 6331 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
6332 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
6333 | ||
6334 | } | |
6335 | ||
bb8c093b | 6336 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6337 | |
6338 | switch (priv->iw_mode) { | |
05c914fe | 6339 | case NL80211_IFTYPE_STATION: |
bb8c093b | 6340 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
6341 | break; |
6342 | ||
05c914fe | 6343 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 6344 | |
ce546fd2 | 6345 | priv->assoc_id = 1; |
bb8c093b | 6346 | iwl3945_add_station(priv, priv->bssid, 0, 0); |
b481de9c | 6347 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 6348 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
6349 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
6350 | CMD_ASYNC); | |
bb8c093b CH |
6351 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
6352 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
6353 | |
6354 | break; | |
6355 | ||
6356 | default: | |
6357 | IWL_ERROR("%s Should not be called in %d mode\n", | |
3ac7f146 | 6358 | __func__, priv->iw_mode); |
b481de9c ZY |
6359 | break; |
6360 | } | |
6361 | ||
bb8c093b | 6362 | iwl3945_activate_qos(priv, 0); |
292ae174 | 6363 | |
7878a5a4 MA |
6364 | /* we have just associated, don't start scan too early */ |
6365 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
cd56d331 AK |
6366 | } |
6367 | ||
bb8c093b | 6368 | static void iwl3945_bg_abort_scan(struct work_struct *work) |
b481de9c | 6369 | { |
bb8c093b | 6370 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, abort_scan); |
b481de9c | 6371 | |
bb8c093b | 6372 | if (!iwl3945_is_ready(priv)) |
b481de9c ZY |
6373 | return; |
6374 | ||
6375 | mutex_lock(&priv->mutex); | |
6376 | ||
6377 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 6378 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6379 | |
6380 | mutex_unlock(&priv->mutex); | |
6381 | } | |
6382 | ||
e8975581 | 6383 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed); |
76bb77e0 | 6384 | |
bb8c093b | 6385 | static void iwl3945_bg_scan_completed(struct work_struct *work) |
b481de9c | 6386 | { |
bb8c093b CH |
6387 | struct iwl3945_priv *priv = |
6388 | container_of(work, struct iwl3945_priv, scan_completed); | |
b481de9c ZY |
6389 | |
6390 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n"); | |
6391 | ||
6392 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6393 | return; | |
6394 | ||
a0646470 | 6395 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
e8975581 | 6396 | iwl3945_mac_config(priv->hw, 0); |
76bb77e0 | 6397 | |
b481de9c ZY |
6398 | ieee80211_scan_completed(priv->hw); |
6399 | ||
6400 | /* Since setting the TXPOWER may have been deferred while | |
6401 | * performing the scan, fire one off */ | |
6402 | mutex_lock(&priv->mutex); | |
bb8c093b | 6403 | iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
6404 | mutex_unlock(&priv->mutex); |
6405 | } | |
6406 | ||
6407 | /***************************************************************************** | |
6408 | * | |
6409 | * mac80211 entry point functions | |
6410 | * | |
6411 | *****************************************************************************/ | |
6412 | ||
5a66926a ZY |
6413 | #define UCODE_READY_TIMEOUT (2 * HZ) |
6414 | ||
bb8c093b | 6415 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 6416 | { |
bb8c093b | 6417 | struct iwl3945_priv *priv = hw->priv; |
5a66926a | 6418 | int ret; |
b481de9c ZY |
6419 | |
6420 | IWL_DEBUG_MAC80211("enter\n"); | |
6421 | ||
5a66926a ZY |
6422 | if (pci_enable_device(priv->pci_dev)) { |
6423 | IWL_ERROR("Fail to pci_enable_device\n"); | |
6424 | return -ENODEV; | |
6425 | } | |
6426 | pci_restore_state(priv->pci_dev); | |
6427 | pci_enable_msi(priv->pci_dev); | |
6428 | ||
6429 | ret = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED, | |
6430 | DRV_NAME, priv); | |
6431 | if (ret) { | |
6432 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
6433 | goto out_disable_msi; | |
6434 | } | |
6435 | ||
b481de9c ZY |
6436 | /* we should be verifying the device is ready to be opened */ |
6437 | mutex_lock(&priv->mutex); | |
6438 | ||
5a66926a ZY |
6439 | memset(&priv->staging_rxon, 0, sizeof(struct iwl3945_rxon_cmd)); |
6440 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... | |
6441 | * ucode filename and max sizes are card-specific. */ | |
6442 | ||
6443 | if (!priv->ucode_code.len) { | |
6444 | ret = iwl3945_read_ucode(priv); | |
6445 | if (ret) { | |
6446 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
6447 | mutex_unlock(&priv->mutex); | |
6448 | goto out_release_irq; | |
6449 | } | |
6450 | } | |
b481de9c | 6451 | |
e655b9f0 | 6452 | ret = __iwl3945_up(priv); |
b481de9c ZY |
6453 | |
6454 | mutex_unlock(&priv->mutex); | |
5a66926a | 6455 | |
80fcc9e2 AG |
6456 | iwl3945_rfkill_set_hw_state(priv); |
6457 | ||
e655b9f0 ZY |
6458 | if (ret) |
6459 | goto out_release_irq; | |
6460 | ||
6461 | IWL_DEBUG_INFO("Start UP work.\n"); | |
6462 | ||
6463 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
6464 | return 0; | |
6465 | ||
5a66926a ZY |
6466 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
6467 | * mac80211 will not be run successfully. */ | |
6468 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
6469 | test_bit(STATUS_READY, &priv->status), | |
6470 | UCODE_READY_TIMEOUT); | |
6471 | if (!ret) { | |
6472 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6473 | IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n", | |
6474 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
6475 | ret = -ETIMEDOUT; | |
6476 | goto out_release_irq; | |
6477 | } | |
6478 | } | |
6479 | ||
e655b9f0 | 6480 | priv->is_open = 1; |
b481de9c ZY |
6481 | IWL_DEBUG_MAC80211("leave\n"); |
6482 | return 0; | |
5a66926a ZY |
6483 | |
6484 | out_release_irq: | |
6485 | free_irq(priv->pci_dev->irq, priv); | |
6486 | out_disable_msi: | |
6487 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
6488 | pci_disable_device(priv->pci_dev); |
6489 | priv->is_open = 0; | |
6490 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 6491 | return ret; |
b481de9c ZY |
6492 | } |
6493 | ||
bb8c093b | 6494 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 6495 | { |
bb8c093b | 6496 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6497 | |
6498 | IWL_DEBUG_MAC80211("enter\n"); | |
6ef89d0a | 6499 | |
e655b9f0 ZY |
6500 | if (!priv->is_open) { |
6501 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
6502 | return; | |
6503 | } | |
6504 | ||
b481de9c | 6505 | priv->is_open = 0; |
5a66926a ZY |
6506 | |
6507 | if (iwl3945_is_ready_rf(priv)) { | |
e655b9f0 ZY |
6508 | /* stop mac, cancel any scan request and clear |
6509 | * RXON_FILTER_ASSOC_MSK BIT | |
6510 | */ | |
5a66926a ZY |
6511 | mutex_lock(&priv->mutex); |
6512 | iwl3945_scan_cancel_timeout(priv, 100); | |
fde3571f | 6513 | mutex_unlock(&priv->mutex); |
fde3571f MA |
6514 | } |
6515 | ||
5a66926a ZY |
6516 | iwl3945_down(priv); |
6517 | ||
6518 | flush_workqueue(priv->workqueue); | |
6519 | free_irq(priv->pci_dev->irq, priv); | |
6520 | pci_disable_msi(priv->pci_dev); | |
6521 | pci_save_state(priv->pci_dev); | |
6522 | pci_disable_device(priv->pci_dev); | |
6ef89d0a | 6523 | |
b481de9c | 6524 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6525 | } |
6526 | ||
e039fa4a | 6527 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 6528 | { |
bb8c093b | 6529 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6530 | |
6531 | IWL_DEBUG_MAC80211("enter\n"); | |
6532 | ||
b481de9c | 6533 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 6534 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 6535 | |
e039fa4a | 6536 | if (iwl3945_tx_skb(priv, skb)) |
b481de9c ZY |
6537 | dev_kfree_skb_any(skb); |
6538 | ||
6539 | IWL_DEBUG_MAC80211("leave\n"); | |
6540 | return 0; | |
6541 | } | |
6542 | ||
bb8c093b | 6543 | static int iwl3945_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6544 | struct ieee80211_if_init_conf *conf) |
6545 | { | |
bb8c093b | 6546 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6547 | unsigned long flags; |
6548 | ||
32bfd35d | 6549 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 6550 | |
32bfd35d JB |
6551 | if (priv->vif) { |
6552 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
864792e3 | 6553 | return -EOPNOTSUPP; |
b481de9c ZY |
6554 | } |
6555 | ||
6556 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 6557 | priv->vif = conf->vif; |
60294de3 | 6558 | priv->iw_mode = conf->type; |
b481de9c ZY |
6559 | |
6560 | spin_unlock_irqrestore(&priv->lock, flags); | |
6561 | ||
6562 | mutex_lock(&priv->mutex); | |
864792e3 TW |
6563 | |
6564 | if (conf->mac_addr) { | |
e174961c | 6565 | IWL_DEBUG_MAC80211("Set: %pM\n", conf->mac_addr); |
864792e3 TW |
6566 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
6567 | } | |
6568 | ||
5a66926a ZY |
6569 | if (iwl3945_is_ready(priv)) |
6570 | iwl3945_set_mode(priv, conf->type); | |
b481de9c | 6571 | |
b481de9c ZY |
6572 | mutex_unlock(&priv->mutex); |
6573 | ||
5a66926a | 6574 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6575 | return 0; |
6576 | } | |
6577 | ||
6578 | /** | |
bb8c093b | 6579 | * iwl3945_mac_config - mac80211 config callback |
b481de9c ZY |
6580 | * |
6581 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
6582 | * be set inappropriately and the driver currently sets the hardware up to | |
6583 | * use it whenever needed. | |
6584 | */ | |
e8975581 | 6585 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed) |
b481de9c | 6586 | { |
bb8c093b CH |
6587 | struct iwl3945_priv *priv = hw->priv; |
6588 | const struct iwl3945_channel_info *ch_info; | |
e8975581 | 6589 | struct ieee80211_conf *conf = &hw->conf; |
b481de9c | 6590 | unsigned long flags; |
76bb77e0 | 6591 | int ret = 0; |
b481de9c ZY |
6592 | |
6593 | mutex_lock(&priv->mutex); | |
8318d78a | 6594 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 6595 | |
bb8c093b | 6596 | if (!iwl3945_is_ready(priv)) { |
b481de9c | 6597 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
6598 | ret = -EIO; |
6599 | goto out; | |
b481de9c ZY |
6600 | } |
6601 | ||
bb8c093b | 6602 | if (unlikely(!iwl3945_param_disable_hw_scan && |
b481de9c | 6603 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
6604 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
6605 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 6606 | mutex_unlock(&priv->mutex); |
a0646470 | 6607 | return 0; |
b481de9c ZY |
6608 | } |
6609 | ||
6610 | spin_lock_irqsave(&priv->lock, flags); | |
6611 | ||
8318d78a JB |
6612 | ch_info = iwl3945_get_channel_info(priv, conf->channel->band, |
6613 | conf->channel->hw_value); | |
b481de9c | 6614 | if (!is_channel_valid(ch_info)) { |
66b5004d | 6615 | IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n", |
8318d78a | 6616 | conf->channel->hw_value, conf->channel->band); |
b481de9c ZY |
6617 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
6618 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
6619 | ret = -EINVAL; |
6620 | goto out; | |
b481de9c ZY |
6621 | } |
6622 | ||
8318d78a | 6623 | iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value); |
b481de9c | 6624 | |
8318d78a | 6625 | iwl3945_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
6626 | |
6627 | /* The list of supported rates and rate mask can be different | |
6628 | * for each phymode; since the phymode may have changed, reset | |
6629 | * the rate mask to what mac80211 lists */ | |
bb8c093b | 6630 | iwl3945_set_rate(priv); |
b481de9c ZY |
6631 | |
6632 | spin_unlock_irqrestore(&priv->lock, flags); | |
6633 | ||
6634 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
6635 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 6636 | iwl3945_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 6637 | goto out; |
b481de9c ZY |
6638 | } |
6639 | #endif | |
6640 | ||
bb8c093b | 6641 | iwl3945_radio_kill_sw(priv, !conf->radio_enabled); |
b481de9c ZY |
6642 | |
6643 | if (!conf->radio_enabled) { | |
6644 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 6645 | goto out; |
b481de9c ZY |
6646 | } |
6647 | ||
bb8c093b | 6648 | if (iwl3945_is_rfkill(priv)) { |
b481de9c | 6649 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
6650 | ret = -EIO; |
6651 | goto out; | |
b481de9c ZY |
6652 | } |
6653 | ||
bb8c093b | 6654 | iwl3945_set_rate(priv); |
b481de9c ZY |
6655 | |
6656 | if (memcmp(&priv->active_rxon, | |
6657 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 6658 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6659 | else |
6660 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
6661 | ||
6662 | IWL_DEBUG_MAC80211("leave\n"); | |
6663 | ||
76bb77e0 | 6664 | out: |
a0646470 | 6665 | clear_bit(STATUS_CONF_PENDING, &priv->status); |
b481de9c | 6666 | mutex_unlock(&priv->mutex); |
76bb77e0 | 6667 | return ret; |
b481de9c ZY |
6668 | } |
6669 | ||
bb8c093b | 6670 | static void iwl3945_config_ap(struct iwl3945_priv *priv) |
b481de9c ZY |
6671 | { |
6672 | int rc = 0; | |
6673 | ||
d986bcd1 | 6674 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
6675 | return; |
6676 | ||
6677 | /* The following should be done only at AP bring up */ | |
5d1e2325 | 6678 | if (!(iwl3945_is_associated(priv))) { |
b481de9c ZY |
6679 | |
6680 | /* RXON - unassoc (to set timing command) */ | |
6681 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6682 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6683 | |
6684 | /* RXON Timing */ | |
bb8c093b CH |
6685 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6686 | iwl3945_setup_rxon_timing(priv); | |
6687 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6688 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6689 | if (rc) | |
6690 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6691 | "Attempting to continue.\n"); | |
6692 | ||
6693 | /* FIXME: what should be the assoc_id for AP? */ | |
6694 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6695 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6696 | priv->staging_rxon.flags |= | |
6697 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
6698 | else | |
6699 | priv->staging_rxon.flags &= | |
6700 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6701 | ||
6702 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6703 | if (priv->assoc_capability & | |
6704 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6705 | priv->staging_rxon.flags |= | |
6706 | RXON_FLG_SHORT_SLOT_MSK; | |
6707 | else | |
6708 | priv->staging_rxon.flags &= | |
6709 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6710 | ||
05c914fe | 6711 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
6712 | priv->staging_rxon.flags &= |
6713 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6714 | } | |
6715 | /* restore RXON assoc */ | |
6716 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b CH |
6717 | iwl3945_commit_rxon(priv); |
6718 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); | |
556f8db7 | 6719 | } |
bb8c093b | 6720 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
6721 | |
6722 | /* FIXME - we need to add code here to detect a totally new | |
6723 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
6724 | * clear sta table, add BCAST sta... */ | |
6725 | } | |
6726 | ||
32bfd35d JB |
6727 | static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, |
6728 | struct ieee80211_vif *vif, | |
b481de9c ZY |
6729 | struct ieee80211_if_conf *conf) |
6730 | { | |
bb8c093b | 6731 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6732 | int rc; |
6733 | ||
6734 | if (conf == NULL) | |
6735 | return -EIO; | |
6736 | ||
b716bb91 EG |
6737 | if (priv->vif != vif) { |
6738 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
6739 | return 0; |
6740 | } | |
6741 | ||
9d139c81 | 6742 | /* handle this temporarily here */ |
05c914fe | 6743 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
9d139c81 JB |
6744 | conf->changed & IEEE80211_IFCC_BEACON) { |
6745 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); | |
6746 | if (!beacon) | |
6747 | return -ENOMEM; | |
9bdf5eca | 6748 | mutex_lock(&priv->mutex); |
9d139c81 | 6749 | rc = iwl3945_mac_beacon_update(hw, beacon); |
9bdf5eca | 6750 | mutex_unlock(&priv->mutex); |
9d139c81 JB |
6751 | if (rc) |
6752 | return rc; | |
6753 | } | |
6754 | ||
5a66926a ZY |
6755 | if (!iwl3945_is_alive(priv)) |
6756 | return -EAGAIN; | |
6757 | ||
b481de9c ZY |
6758 | mutex_lock(&priv->mutex); |
6759 | ||
b481de9c | 6760 | if (conf->bssid) |
e174961c | 6761 | IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid); |
b481de9c | 6762 | |
4150c572 JB |
6763 | /* |
6764 | * very dubious code was here; the probe filtering flag is never set: | |
6765 | * | |
b481de9c ZY |
6766 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
6767 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 6768 | */ |
b481de9c | 6769 | |
05c914fe | 6770 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
6771 | if (!conf->bssid) { |
6772 | conf->bssid = priv->mac_addr; | |
6773 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
e174961c JB |
6774 | IWL_DEBUG_MAC80211("bssid was set to: %pM\n", |
6775 | conf->bssid); | |
b481de9c ZY |
6776 | } |
6777 | if (priv->ibss_beacon) | |
6778 | dev_kfree_skb(priv->ibss_beacon); | |
6779 | ||
9d139c81 | 6780 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
b481de9c ZY |
6781 | } |
6782 | ||
fde3571f MA |
6783 | if (iwl3945_is_rfkill(priv)) |
6784 | goto done; | |
6785 | ||
b481de9c ZY |
6786 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
6787 | !is_multicast_ether_addr(conf->bssid)) { | |
6788 | /* If there is currently a HW scan going on in the background | |
6789 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 6790 | if (iwl3945_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
6791 | IWL_WARNING("Aborted scan still in progress " |
6792 | "after 100ms\n"); | |
6793 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
6794 | mutex_unlock(&priv->mutex); | |
6795 | return -EAGAIN; | |
6796 | } | |
6797 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
6798 | ||
6799 | /* TODO: Audit driver for usage of these members and see | |
6800 | * if mac80211 deprecates them (priv->bssid looks like it | |
6801 | * shouldn't be there, but I haven't scanned the IBSS code | |
6802 | * to verify) - jpk */ | |
6803 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
6804 | ||
05c914fe | 6805 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
bb8c093b | 6806 | iwl3945_config_ap(priv); |
b481de9c | 6807 | else { |
bb8c093b | 6808 | rc = iwl3945_commit_rxon(priv); |
05c914fe | 6809 | if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) |
bb8c093b | 6810 | iwl3945_add_station(priv, |
556f8db7 | 6811 | priv->active_rxon.bssid_addr, 1, 0); |
b481de9c ZY |
6812 | } |
6813 | ||
6814 | } else { | |
bb8c093b | 6815 | iwl3945_scan_cancel_timeout(priv, 100); |
b481de9c | 6816 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 6817 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6818 | } |
6819 | ||
fde3571f | 6820 | done: |
b481de9c ZY |
6821 | IWL_DEBUG_MAC80211("leave\n"); |
6822 | mutex_unlock(&priv->mutex); | |
6823 | ||
6824 | return 0; | |
6825 | } | |
6826 | ||
bb8c093b | 6827 | static void iwl3945_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
6828 | unsigned int changed_flags, |
6829 | unsigned int *total_flags, | |
6830 | int mc_count, struct dev_addr_list *mc_list) | |
6831 | { | |
5ec03976 | 6832 | struct iwl3945_priv *priv = hw->priv; |
352bc8de | 6833 | __le32 *filter_flags = &priv->staging_rxon.filter_flags; |
25b3f57c | 6834 | |
352bc8de ZY |
6835 | IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", |
6836 | changed_flags, *total_flags); | |
6837 | ||
6838 | if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) { | |
6839 | if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) | |
6840 | *filter_flags |= RXON_FILTER_PROMISC_MSK; | |
6841 | else | |
6842 | *filter_flags &= ~RXON_FILTER_PROMISC_MSK; | |
6843 | } | |
6844 | if (changed_flags & FIF_ALLMULTI) { | |
6845 | if (*total_flags & FIF_ALLMULTI) | |
6846 | *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK; | |
6847 | else | |
6848 | *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK; | |
6849 | } | |
6850 | if (changed_flags & FIF_CONTROL) { | |
6851 | if (*total_flags & FIF_CONTROL) | |
6852 | *filter_flags |= RXON_FILTER_CTL2HOST_MSK; | |
6853 | else | |
6854 | *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK; | |
5ec03976 | 6855 | } |
352bc8de ZY |
6856 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
6857 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) | |
6858 | *filter_flags |= RXON_FILTER_BCON_AWARE_MSK; | |
6859 | else | |
6860 | *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK; | |
6861 | } | |
6862 | ||
6863 | /* We avoid iwl_commit_rxon here to commit the new filter flags | |
6864 | * since mac80211 will call ieee80211_hw_config immediately. | |
6865 | * (mc_list is not supported at this time). Otherwise, we need to | |
6866 | * queue a background iwl_commit_rxon work. | |
6867 | */ | |
6868 | ||
6869 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
25b3f57c | 6870 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
4150c572 JB |
6871 | } |
6872 | ||
bb8c093b | 6873 | static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6874 | struct ieee80211_if_init_conf *conf) |
6875 | { | |
bb8c093b | 6876 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6877 | |
6878 | IWL_DEBUG_MAC80211("enter\n"); | |
6879 | ||
6880 | mutex_lock(&priv->mutex); | |
6ef89d0a | 6881 | |
fde3571f MA |
6882 | if (iwl3945_is_ready_rf(priv)) { |
6883 | iwl3945_scan_cancel_timeout(priv, 100); | |
fde3571f MA |
6884 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
6885 | iwl3945_commit_rxon(priv); | |
6886 | } | |
32bfd35d JB |
6887 | if (priv->vif == conf->vif) { |
6888 | priv->vif = NULL; | |
b481de9c | 6889 | memset(priv->bssid, 0, ETH_ALEN); |
b481de9c ZY |
6890 | } |
6891 | mutex_unlock(&priv->mutex); | |
6892 | ||
6893 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
6894 | } |
6895 | ||
cd56d331 AK |
6896 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
6897 | ||
6898 | static void iwl3945_bss_info_changed(struct ieee80211_hw *hw, | |
6899 | struct ieee80211_vif *vif, | |
6900 | struct ieee80211_bss_conf *bss_conf, | |
6901 | u32 changes) | |
6902 | { | |
6903 | struct iwl3945_priv *priv = hw->priv; | |
6904 | ||
6905 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); | |
6906 | ||
6907 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { | |
6908 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", | |
6909 | bss_conf->use_short_preamble); | |
6910 | if (bss_conf->use_short_preamble) | |
6911 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6912 | else | |
6913 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6914 | } | |
6915 | ||
6916 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { | |
6917 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); | |
6918 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) | |
6919 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; | |
6920 | else | |
6921 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
6922 | } | |
6923 | ||
6924 | if (changes & BSS_CHANGED_ASSOC) { | |
6925 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); | |
6926 | /* This should never happen as this function should | |
6927 | * never be called from interrupt context. */ | |
6928 | if (WARN_ON_ONCE(in_interrupt())) | |
6929 | return; | |
6930 | if (bss_conf->assoc) { | |
6931 | priv->assoc_id = bss_conf->aid; | |
6932 | priv->beacon_int = bss_conf->beacon_int; | |
6933 | priv->timestamp0 = bss_conf->timestamp & 0xFFFFFFFF; | |
6934 | priv->timestamp1 = (bss_conf->timestamp >> 32) & | |
6935 | 0xFFFFFFFF; | |
6936 | priv->assoc_capability = bss_conf->assoc_capability; | |
6937 | priv->next_scan_jiffies = jiffies + | |
6938 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
6939 | mutex_lock(&priv->mutex); | |
6940 | iwl3945_post_associate(priv); | |
6941 | mutex_unlock(&priv->mutex); | |
6942 | } else { | |
6943 | priv->assoc_id = 0; | |
6944 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
6945 | } | |
6946 | } else if (changes && iwl3945_is_associated(priv) && priv->assoc_id) { | |
6947 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
6948 | iwl3945_send_rxon_assoc(priv); | |
6949 | } | |
6950 | ||
6951 | } | |
6952 | ||
bb8c093b | 6953 | static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
6954 | { |
6955 | int rc = 0; | |
6956 | unsigned long flags; | |
bb8c093b | 6957 | struct iwl3945_priv *priv = hw->priv; |
9387b7ca | 6958 | DECLARE_SSID_BUF(ssid_buf); |
b481de9c ZY |
6959 | |
6960 | IWL_DEBUG_MAC80211("enter\n"); | |
6961 | ||
15e869d8 | 6962 | mutex_lock(&priv->mutex); |
b481de9c ZY |
6963 | spin_lock_irqsave(&priv->lock, flags); |
6964 | ||
bb8c093b | 6965 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
6966 | rc = -EIO; |
6967 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
6968 | goto out_unlock; | |
6969 | } | |
6970 | ||
7878a5a4 MA |
6971 | /* we don't schedule scan within next_scan_jiffies period */ |
6972 | if (priv->next_scan_jiffies && | |
6973 | time_after(priv->next_scan_jiffies, jiffies)) { | |
6974 | rc = -EAGAIN; | |
6975 | goto out_unlock; | |
6976 | } | |
15dbf1b7 BM |
6977 | /* if we just finished scan ask for delay for a broadcast scan */ |
6978 | if ((len == 0) && priv->last_scan_jiffies && | |
6979 | time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, | |
6980 | jiffies)) { | |
b481de9c ZY |
6981 | rc = -EAGAIN; |
6982 | goto out_unlock; | |
6983 | } | |
6984 | if (len) { | |
7878a5a4 | 6985 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
9387b7ca | 6986 | print_ssid(ssid_buf, ssid, len), (int)len); |
b481de9c ZY |
6987 | |
6988 | priv->one_direct_scan = 1; | |
6989 | priv->direct_ssid_len = (u8) | |
6990 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
6991 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
6ef89d0a MA |
6992 | } else |
6993 | priv->one_direct_scan = 0; | |
b481de9c | 6994 | |
bb8c093b | 6995 | rc = iwl3945_scan_initiate(priv); |
b481de9c ZY |
6996 | |
6997 | IWL_DEBUG_MAC80211("leave\n"); | |
6998 | ||
6999 | out_unlock: | |
7000 | spin_unlock_irqrestore(&priv->lock, flags); | |
15e869d8 | 7001 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
7002 | |
7003 | return rc; | |
7004 | } | |
7005 | ||
bb8c093b | 7006 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
7007 | const u8 *local_addr, const u8 *addr, |
7008 | struct ieee80211_key_conf *key) | |
7009 | { | |
bb8c093b | 7010 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7011 | int rc = 0; |
7012 | u8 sta_id; | |
7013 | ||
7014 | IWL_DEBUG_MAC80211("enter\n"); | |
7015 | ||
bb8c093b | 7016 | if (!iwl3945_param_hwcrypto) { |
b481de9c ZY |
7017 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
7018 | return -EOPNOTSUPP; | |
7019 | } | |
7020 | ||
7021 | if (is_zero_ether_addr(addr)) | |
7022 | /* only support pairwise keys */ | |
7023 | return -EOPNOTSUPP; | |
7024 | ||
bb8c093b | 7025 | sta_id = iwl3945_hw_find_station(priv, addr); |
b481de9c | 7026 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
7027 | IWL_DEBUG_MAC80211("leave - %pM not in station map.\n", |
7028 | addr); | |
b481de9c ZY |
7029 | return -EINVAL; |
7030 | } | |
7031 | ||
7032 | mutex_lock(&priv->mutex); | |
7033 | ||
bb8c093b | 7034 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7035 | |
b481de9c ZY |
7036 | switch (cmd) { |
7037 | case SET_KEY: | |
bb8c093b | 7038 | rc = iwl3945_update_sta_key_info(priv, key, sta_id); |
b481de9c | 7039 | if (!rc) { |
bb8c093b CH |
7040 | iwl3945_set_rxon_hwcrypto(priv, 1); |
7041 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7042 | key->hw_key_idx = sta_id; |
7043 | IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n"); | |
7044 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
7045 | } | |
7046 | break; | |
7047 | case DISABLE_KEY: | |
bb8c093b | 7048 | rc = iwl3945_clear_sta_key_info(priv, sta_id); |
b481de9c | 7049 | if (!rc) { |
bb8c093b CH |
7050 | iwl3945_set_rxon_hwcrypto(priv, 0); |
7051 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7052 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); |
7053 | } | |
7054 | break; | |
7055 | default: | |
7056 | rc = -EINVAL; | |
7057 | } | |
7058 | ||
7059 | IWL_DEBUG_MAC80211("leave\n"); | |
7060 | mutex_unlock(&priv->mutex); | |
7061 | ||
7062 | return rc; | |
7063 | } | |
7064 | ||
e100bb64 | 7065 | static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
7066 | const struct ieee80211_tx_queue_params *params) |
7067 | { | |
bb8c093b | 7068 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7069 | unsigned long flags; |
7070 | int q; | |
b481de9c ZY |
7071 | |
7072 | IWL_DEBUG_MAC80211("enter\n"); | |
7073 | ||
bb8c093b | 7074 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7075 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7076 | return -EIO; | |
7077 | } | |
7078 | ||
7079 | if (queue >= AC_NUM) { | |
7080 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
7081 | return 0; | |
7082 | } | |
7083 | ||
b481de9c ZY |
7084 | q = AC_NUM - 1 - queue; |
7085 | ||
7086 | spin_lock_irqsave(&priv->lock, flags); | |
7087 | ||
7088 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
7089 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
7090 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
7091 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 7092 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
7093 | |
7094 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
7095 | priv->qos_data.qos_active = 1; | |
7096 | ||
7097 | spin_unlock_irqrestore(&priv->lock, flags); | |
7098 | ||
7099 | mutex_lock(&priv->mutex); | |
05c914fe | 7100 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
bb8c093b CH |
7101 | iwl3945_activate_qos(priv, 1); |
7102 | else if (priv->assoc_id && iwl3945_is_associated(priv)) | |
7103 | iwl3945_activate_qos(priv, 0); | |
b481de9c ZY |
7104 | |
7105 | mutex_unlock(&priv->mutex); | |
7106 | ||
b481de9c ZY |
7107 | IWL_DEBUG_MAC80211("leave\n"); |
7108 | return 0; | |
7109 | } | |
7110 | ||
bb8c093b | 7111 | static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7112 | struct ieee80211_tx_queue_stats *stats) |
7113 | { | |
bb8c093b | 7114 | struct iwl3945_priv *priv = hw->priv; |
b481de9c | 7115 | int i, avail; |
bb8c093b CH |
7116 | struct iwl3945_tx_queue *txq; |
7117 | struct iwl3945_queue *q; | |
b481de9c ZY |
7118 | unsigned long flags; |
7119 | ||
7120 | IWL_DEBUG_MAC80211("enter\n"); | |
7121 | ||
bb8c093b | 7122 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7123 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7124 | return -EIO; | |
7125 | } | |
7126 | ||
7127 | spin_lock_irqsave(&priv->lock, flags); | |
7128 | ||
7129 | for (i = 0; i < AC_NUM; i++) { | |
7130 | txq = &priv->txq[i]; | |
7131 | q = &txq->q; | |
bb8c093b | 7132 | avail = iwl3945_queue_space(q); |
b481de9c | 7133 | |
57ffc589 JB |
7134 | stats[i].len = q->n_window - avail; |
7135 | stats[i].limit = q->n_window - q->high_mark; | |
7136 | stats[i].count = q->n_window; | |
b481de9c ZY |
7137 | |
7138 | } | |
7139 | spin_unlock_irqrestore(&priv->lock, flags); | |
7140 | ||
7141 | IWL_DEBUG_MAC80211("leave\n"); | |
7142 | ||
7143 | return 0; | |
7144 | } | |
7145 | ||
bb8c093b | 7146 | static int iwl3945_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7147 | struct ieee80211_low_level_stats *stats) |
7148 | { | |
7149 | IWL_DEBUG_MAC80211("enter\n"); | |
7150 | IWL_DEBUG_MAC80211("leave\n"); | |
7151 | ||
7152 | return 0; | |
7153 | } | |
7154 | ||
bb8c093b | 7155 | static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 7156 | { |
bb8c093b | 7157 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7158 | unsigned long flags; |
7159 | ||
7160 | mutex_lock(&priv->mutex); | |
7161 | IWL_DEBUG_MAC80211("enter\n"); | |
7162 | ||
bb8c093b | 7163 | iwl3945_reset_qos(priv); |
292ae174 | 7164 | |
b481de9c ZY |
7165 | spin_lock_irqsave(&priv->lock, flags); |
7166 | priv->assoc_id = 0; | |
7167 | priv->assoc_capability = 0; | |
7168 | priv->call_post_assoc_from_beacon = 0; | |
7169 | ||
7170 | /* new association get rid of ibss beacon skb */ | |
7171 | if (priv->ibss_beacon) | |
7172 | dev_kfree_skb(priv->ibss_beacon); | |
7173 | ||
7174 | priv->ibss_beacon = NULL; | |
7175 | ||
7176 | priv->beacon_int = priv->hw->conf.beacon_int; | |
7177 | priv->timestamp1 = 0; | |
7178 | priv->timestamp0 = 0; | |
05c914fe | 7179 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
b481de9c ZY |
7180 | priv->beacon_int = 0; |
7181 | ||
7182 | spin_unlock_irqrestore(&priv->lock, flags); | |
7183 | ||
fde3571f MA |
7184 | if (!iwl3945_is_ready_rf(priv)) { |
7185 | IWL_DEBUG_MAC80211("leave - not ready\n"); | |
7186 | mutex_unlock(&priv->mutex); | |
7187 | return; | |
7188 | } | |
7189 | ||
15e869d8 MA |
7190 | /* we are restarting association process |
7191 | * clear RXON_FILTER_ASSOC_MSK bit | |
7192 | */ | |
05c914fe | 7193 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
bb8c093b | 7194 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7195 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 7196 | iwl3945_commit_rxon(priv); |
15e869d8 MA |
7197 | } |
7198 | ||
b481de9c | 7199 | /* Per mac80211.h: This is only used in IBSS mode... */ |
05c914fe | 7200 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
15e869d8 | 7201 | |
b481de9c ZY |
7202 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
7203 | mutex_unlock(&priv->mutex); | |
7204 | return; | |
b481de9c ZY |
7205 | } |
7206 | ||
bb8c093b | 7207 | iwl3945_set_rate(priv); |
b481de9c ZY |
7208 | |
7209 | mutex_unlock(&priv->mutex); | |
7210 | ||
7211 | IWL_DEBUG_MAC80211("leave\n"); | |
7212 | ||
7213 | } | |
7214 | ||
e039fa4a | 7215 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 7216 | { |
bb8c093b | 7217 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7218 | unsigned long flags; |
7219 | ||
b481de9c ZY |
7220 | IWL_DEBUG_MAC80211("enter\n"); |
7221 | ||
bb8c093b | 7222 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c | 7223 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
b481de9c ZY |
7224 | return -EIO; |
7225 | } | |
7226 | ||
05c914fe | 7227 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
b481de9c | 7228 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); |
b481de9c ZY |
7229 | return -EIO; |
7230 | } | |
7231 | ||
7232 | spin_lock_irqsave(&priv->lock, flags); | |
7233 | ||
7234 | if (priv->ibss_beacon) | |
7235 | dev_kfree_skb(priv->ibss_beacon); | |
7236 | ||
7237 | priv->ibss_beacon = skb; | |
7238 | ||
7239 | priv->assoc_id = 0; | |
7240 | ||
7241 | IWL_DEBUG_MAC80211("leave\n"); | |
7242 | spin_unlock_irqrestore(&priv->lock, flags); | |
7243 | ||
bb8c093b | 7244 | iwl3945_reset_qos(priv); |
b481de9c | 7245 | |
dc4b1e7d | 7246 | iwl3945_post_associate(priv); |
b481de9c | 7247 | |
b481de9c ZY |
7248 | |
7249 | return 0; | |
7250 | } | |
7251 | ||
7252 | /***************************************************************************** | |
7253 | * | |
7254 | * sysfs attributes | |
7255 | * | |
7256 | *****************************************************************************/ | |
7257 | ||
c8b0e6e1 | 7258 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
7259 | |
7260 | /* | |
7261 | * The following adds a new attribute to the sysfs representation | |
7262 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
7263 | * used for controlling the debug level. | |
7264 | * | |
7265 | * See the level definitions in iwl for details. | |
7266 | */ | |
7267 | ||
7268 | static ssize_t show_debug_level(struct device_driver *d, char *buf) | |
7269 | { | |
bb8c093b | 7270 | return sprintf(buf, "0x%08X\n", iwl3945_debug_level); |
b481de9c ZY |
7271 | } |
7272 | static ssize_t store_debug_level(struct device_driver *d, | |
7273 | const char *buf, size_t count) | |
7274 | { | |
7275 | char *p = (char *)buf; | |
7276 | u32 val; | |
7277 | ||
7278 | val = simple_strtoul(p, &p, 0); | |
7279 | if (p == buf) | |
7280 | printk(KERN_INFO DRV_NAME | |
7281 | ": %s is not in hex or decimal form.\n", buf); | |
7282 | else | |
bb8c093b | 7283 | iwl3945_debug_level = val; |
b481de9c ZY |
7284 | |
7285 | return strnlen(buf, count); | |
7286 | } | |
7287 | ||
7288 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
7289 | show_debug_level, store_debug_level); | |
7290 | ||
c8b0e6e1 | 7291 | #endif /* CONFIG_IWL3945_DEBUG */ |
b481de9c | 7292 | |
b481de9c ZY |
7293 | static ssize_t show_temperature(struct device *d, |
7294 | struct device_attribute *attr, char *buf) | |
7295 | { | |
bb8c093b | 7296 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c | 7297 | |
bb8c093b | 7298 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7299 | return -EAGAIN; |
7300 | ||
bb8c093b | 7301 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
7302 | } |
7303 | ||
7304 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
7305 | ||
b481de9c ZY |
7306 | static ssize_t show_tx_power(struct device *d, |
7307 | struct device_attribute *attr, char *buf) | |
7308 | { | |
bb8c093b | 7309 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7310 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
7311 | } | |
7312 | ||
7313 | static ssize_t store_tx_power(struct device *d, | |
7314 | struct device_attribute *attr, | |
7315 | const char *buf, size_t count) | |
7316 | { | |
bb8c093b | 7317 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7318 | char *p = (char *)buf; |
7319 | u32 val; | |
7320 | ||
7321 | val = simple_strtoul(p, &p, 10); | |
7322 | if (p == buf) | |
7323 | printk(KERN_INFO DRV_NAME | |
7324 | ": %s is not in decimal form.\n", buf); | |
7325 | else | |
bb8c093b | 7326 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
7327 | |
7328 | return count; | |
7329 | } | |
7330 | ||
7331 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
7332 | ||
7333 | static ssize_t show_flags(struct device *d, | |
7334 | struct device_attribute *attr, char *buf) | |
7335 | { | |
bb8c093b | 7336 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7337 | |
7338 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
7339 | } | |
7340 | ||
7341 | static ssize_t store_flags(struct device *d, | |
7342 | struct device_attribute *attr, | |
7343 | const char *buf, size_t count) | |
7344 | { | |
bb8c093b | 7345 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7346 | u32 flags = simple_strtoul(buf, NULL, 0); |
7347 | ||
7348 | mutex_lock(&priv->mutex); | |
7349 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
7350 | /* Cancel any currently running scans... */ | |
bb8c093b | 7351 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7352 | IWL_WARNING("Could not cancel scan.\n"); |
7353 | else { | |
7354 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
7355 | flags); | |
7356 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 7357 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7358 | } |
7359 | } | |
7360 | mutex_unlock(&priv->mutex); | |
7361 | ||
7362 | return count; | |
7363 | } | |
7364 | ||
7365 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
7366 | ||
7367 | static ssize_t show_filter_flags(struct device *d, | |
7368 | struct device_attribute *attr, char *buf) | |
7369 | { | |
bb8c093b | 7370 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7371 | |
7372 | return sprintf(buf, "0x%04X\n", | |
7373 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
7374 | } | |
7375 | ||
7376 | static ssize_t store_filter_flags(struct device *d, | |
7377 | struct device_attribute *attr, | |
7378 | const char *buf, size_t count) | |
7379 | { | |
bb8c093b | 7380 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7381 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
7382 | ||
7383 | mutex_lock(&priv->mutex); | |
7384 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
7385 | /* Cancel any currently running scans... */ | |
bb8c093b | 7386 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7387 | IWL_WARNING("Could not cancel scan.\n"); |
7388 | else { | |
7389 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
7390 | "0x%04X\n", filter_flags); | |
7391 | priv->staging_rxon.filter_flags = | |
7392 | cpu_to_le32(filter_flags); | |
bb8c093b | 7393 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7394 | } |
7395 | } | |
7396 | mutex_unlock(&priv->mutex); | |
7397 | ||
7398 | return count; | |
7399 | } | |
7400 | ||
7401 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
7402 | store_filter_flags); | |
7403 | ||
c8b0e6e1 | 7404 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7405 | |
7406 | static ssize_t show_measurement(struct device *d, | |
7407 | struct device_attribute *attr, char *buf) | |
7408 | { | |
bb8c093b CH |
7409 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7410 | struct iwl3945_spectrum_notification measure_report; | |
b481de9c | 7411 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
3ac7f146 | 7412 | u8 *data = (u8 *)&measure_report; |
b481de9c ZY |
7413 | unsigned long flags; |
7414 | ||
7415 | spin_lock_irqsave(&priv->lock, flags); | |
7416 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
7417 | spin_unlock_irqrestore(&priv->lock, flags); | |
7418 | return 0; | |
7419 | } | |
7420 | memcpy(&measure_report, &priv->measure_report, size); | |
7421 | priv->measurement_status = 0; | |
7422 | spin_unlock_irqrestore(&priv->lock, flags); | |
7423 | ||
7424 | while (size && (PAGE_SIZE - len)) { | |
7425 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7426 | PAGE_SIZE - len, 1); | |
7427 | len = strlen(buf); | |
7428 | if (PAGE_SIZE - len) | |
7429 | buf[len++] = '\n'; | |
7430 | ||
7431 | ofs += 16; | |
7432 | size -= min(size, 16U); | |
7433 | } | |
7434 | ||
7435 | return len; | |
7436 | } | |
7437 | ||
7438 | static ssize_t store_measurement(struct device *d, | |
7439 | struct device_attribute *attr, | |
7440 | const char *buf, size_t count) | |
7441 | { | |
bb8c093b | 7442 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7443 | struct ieee80211_measurement_params params = { |
7444 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
7445 | .start_time = cpu_to_le64(priv->last_tsf), | |
7446 | .duration = cpu_to_le16(1), | |
7447 | }; | |
7448 | u8 type = IWL_MEASURE_BASIC; | |
7449 | u8 buffer[32]; | |
7450 | u8 channel; | |
7451 | ||
7452 | if (count) { | |
7453 | char *p = buffer; | |
7454 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
7455 | channel = simple_strtoul(p, NULL, 0); | |
7456 | if (channel) | |
7457 | params.channel = channel; | |
7458 | ||
7459 | p = buffer; | |
7460 | while (*p && *p != ' ') | |
7461 | p++; | |
7462 | if (*p) | |
7463 | type = simple_strtoul(p + 1, NULL, 0); | |
7464 | } | |
7465 | ||
7466 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
7467 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 7468 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
7469 | |
7470 | return count; | |
7471 | } | |
7472 | ||
7473 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
7474 | show_measurement, store_measurement); | |
c8b0e6e1 | 7475 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
b481de9c | 7476 | |
b481de9c ZY |
7477 | static ssize_t store_retry_rate(struct device *d, |
7478 | struct device_attribute *attr, | |
7479 | const char *buf, size_t count) | |
7480 | { | |
bb8c093b | 7481 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7482 | |
7483 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
7484 | if (priv->retry_rate <= 0) | |
7485 | priv->retry_rate = 1; | |
7486 | ||
7487 | return count; | |
7488 | } | |
7489 | ||
7490 | static ssize_t show_retry_rate(struct device *d, | |
7491 | struct device_attribute *attr, char *buf) | |
7492 | { | |
bb8c093b | 7493 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7494 | return sprintf(buf, "%d", priv->retry_rate); |
7495 | } | |
7496 | ||
7497 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
7498 | store_retry_rate); | |
7499 | ||
7500 | static ssize_t store_power_level(struct device *d, | |
7501 | struct device_attribute *attr, | |
7502 | const char *buf, size_t count) | |
7503 | { | |
bb8c093b | 7504 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7505 | int rc; |
7506 | int mode; | |
7507 | ||
7508 | mode = simple_strtoul(buf, NULL, 0); | |
7509 | mutex_lock(&priv->mutex); | |
7510 | ||
bb8c093b | 7511 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
7512 | rc = -EAGAIN; |
7513 | goto out; | |
7514 | } | |
7515 | ||
7516 | if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC)) | |
7517 | mode = IWL_POWER_AC; | |
7518 | else | |
7519 | mode |= IWL_POWER_ENABLED; | |
7520 | ||
7521 | if (mode != priv->power_mode) { | |
bb8c093b | 7522 | rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode)); |
b481de9c ZY |
7523 | if (rc) { |
7524 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
7525 | goto out; | |
7526 | } | |
7527 | priv->power_mode = mode; | |
7528 | } | |
7529 | ||
7530 | rc = count; | |
7531 | ||
7532 | out: | |
7533 | mutex_unlock(&priv->mutex); | |
7534 | return rc; | |
7535 | } | |
7536 | ||
7537 | #define MAX_WX_STRING 80 | |
7538 | ||
7539 | /* Values are in microsecond */ | |
7540 | static const s32 timeout_duration[] = { | |
7541 | 350000, | |
7542 | 250000, | |
7543 | 75000, | |
7544 | 37000, | |
7545 | 25000, | |
7546 | }; | |
7547 | static const s32 period_duration[] = { | |
7548 | 400000, | |
7549 | 700000, | |
7550 | 1000000, | |
7551 | 1000000, | |
7552 | 1000000 | |
7553 | }; | |
7554 | ||
7555 | static ssize_t show_power_level(struct device *d, | |
7556 | struct device_attribute *attr, char *buf) | |
7557 | { | |
bb8c093b | 7558 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7559 | int level = IWL_POWER_LEVEL(priv->power_mode); |
7560 | char *p = buf; | |
7561 | ||
7562 | p += sprintf(p, "%d ", level); | |
7563 | switch (level) { | |
7564 | case IWL_POWER_MODE_CAM: | |
7565 | case IWL_POWER_AC: | |
7566 | p += sprintf(p, "(AC)"); | |
7567 | break; | |
7568 | case IWL_POWER_BATTERY: | |
7569 | p += sprintf(p, "(BATTERY)"); | |
7570 | break; | |
7571 | default: | |
7572 | p += sprintf(p, | |
7573 | "(Timeout %dms, Period %dms)", | |
7574 | timeout_duration[level - 1] / 1000, | |
7575 | period_duration[level - 1] / 1000); | |
7576 | } | |
7577 | ||
7578 | if (!(priv->power_mode & IWL_POWER_ENABLED)) | |
7579 | p += sprintf(p, " OFF\n"); | |
7580 | else | |
7581 | p += sprintf(p, " \n"); | |
7582 | ||
3ac7f146 | 7583 | return p - buf + 1; |
b481de9c ZY |
7584 | |
7585 | } | |
7586 | ||
7587 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
7588 | store_power_level); | |
7589 | ||
7590 | static ssize_t show_channels(struct device *d, | |
7591 | struct device_attribute *attr, char *buf) | |
7592 | { | |
8318d78a JB |
7593 | /* all this shit doesn't belong into sysfs anyway */ |
7594 | return 0; | |
b481de9c ZY |
7595 | } |
7596 | ||
7597 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
7598 | ||
7599 | static ssize_t show_statistics(struct device *d, | |
7600 | struct device_attribute *attr, char *buf) | |
7601 | { | |
bb8c093b CH |
7602 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7603 | u32 size = sizeof(struct iwl3945_notif_statistics); | |
b481de9c | 7604 | u32 len = 0, ofs = 0; |
3ac7f146 | 7605 | u8 *data = (u8 *)&priv->statistics; |
b481de9c ZY |
7606 | int rc = 0; |
7607 | ||
bb8c093b | 7608 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7609 | return -EAGAIN; |
7610 | ||
7611 | mutex_lock(&priv->mutex); | |
bb8c093b | 7612 | rc = iwl3945_send_statistics_request(priv); |
b481de9c ZY |
7613 | mutex_unlock(&priv->mutex); |
7614 | ||
7615 | if (rc) { | |
7616 | len = sprintf(buf, | |
7617 | "Error sending statistics request: 0x%08X\n", rc); | |
7618 | return len; | |
7619 | } | |
7620 | ||
7621 | while (size && (PAGE_SIZE - len)) { | |
7622 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7623 | PAGE_SIZE - len, 1); | |
7624 | len = strlen(buf); | |
7625 | if (PAGE_SIZE - len) | |
7626 | buf[len++] = '\n'; | |
7627 | ||
7628 | ofs += 16; | |
7629 | size -= min(size, 16U); | |
7630 | } | |
7631 | ||
7632 | return len; | |
7633 | } | |
7634 | ||
7635 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
7636 | ||
7637 | static ssize_t show_antenna(struct device *d, | |
7638 | struct device_attribute *attr, char *buf) | |
7639 | { | |
bb8c093b | 7640 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c | 7641 | |
bb8c093b | 7642 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7643 | return -EAGAIN; |
7644 | ||
7645 | return sprintf(buf, "%d\n", priv->antenna); | |
7646 | } | |
7647 | ||
7648 | static ssize_t store_antenna(struct device *d, | |
7649 | struct device_attribute *attr, | |
7650 | const char *buf, size_t count) | |
7651 | { | |
7652 | int ant; | |
bb8c093b | 7653 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7654 | |
7655 | if (count == 0) | |
7656 | return 0; | |
7657 | ||
7658 | if (sscanf(buf, "%1i", &ant) != 1) { | |
7659 | IWL_DEBUG_INFO("not in hex or decimal form.\n"); | |
7660 | return count; | |
7661 | } | |
7662 | ||
7663 | if ((ant >= 0) && (ant <= 2)) { | |
7664 | IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant); | |
bb8c093b | 7665 | priv->antenna = (enum iwl3945_antenna)ant; |
b481de9c ZY |
7666 | } else |
7667 | IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant); | |
7668 | ||
7669 | ||
7670 | return count; | |
7671 | } | |
7672 | ||
7673 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
7674 | ||
7675 | static ssize_t show_status(struct device *d, | |
7676 | struct device_attribute *attr, char *buf) | |
7677 | { | |
bb8c093b CH |
7678 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
7679 | if (!iwl3945_is_alive(priv)) | |
b481de9c ZY |
7680 | return -EAGAIN; |
7681 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
7682 | } | |
7683 | ||
7684 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
7685 | ||
7686 | static ssize_t dump_error_log(struct device *d, | |
7687 | struct device_attribute *attr, | |
7688 | const char *buf, size_t count) | |
7689 | { | |
7690 | char *p = (char *)buf; | |
7691 | ||
7692 | if (p[0] == '1') | |
bb8c093b | 7693 | iwl3945_dump_nic_error_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7694 | |
7695 | return strnlen(buf, count); | |
7696 | } | |
7697 | ||
7698 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
7699 | ||
7700 | static ssize_t dump_event_log(struct device *d, | |
7701 | struct device_attribute *attr, | |
7702 | const char *buf, size_t count) | |
7703 | { | |
7704 | char *p = (char *)buf; | |
7705 | ||
7706 | if (p[0] == '1') | |
bb8c093b | 7707 | iwl3945_dump_nic_event_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7708 | |
7709 | return strnlen(buf, count); | |
7710 | } | |
7711 | ||
7712 | static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); | |
7713 | ||
7714 | /***************************************************************************** | |
7715 | * | |
a96a27f9 | 7716 | * driver setup and tear down |
b481de9c ZY |
7717 | * |
7718 | *****************************************************************************/ | |
7719 | ||
bb8c093b | 7720 | static void iwl3945_setup_deferred_work(struct iwl3945_priv *priv) |
b481de9c ZY |
7721 | { |
7722 | priv->workqueue = create_workqueue(DRV_NAME); | |
7723 | ||
7724 | init_waitqueue_head(&priv->wait_command_queue); | |
7725 | ||
bb8c093b CH |
7726 | INIT_WORK(&priv->up, iwl3945_bg_up); |
7727 | INIT_WORK(&priv->restart, iwl3945_bg_restart); | |
7728 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
7729 | INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed); | |
7730 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
7731 | INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan); | |
7732 | INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill); | |
7733 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); | |
bb8c093b CH |
7734 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); |
7735 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
7736 | INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check); | |
7737 | ||
7738 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
7739 | |
7740 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 7741 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
7742 | } |
7743 | ||
bb8c093b | 7744 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv) |
b481de9c | 7745 | { |
bb8c093b | 7746 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 7747 | |
e47eb6ad | 7748 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
7749 | cancel_delayed_work(&priv->scan_check); |
7750 | cancel_delayed_work(&priv->alive_start); | |
b481de9c ZY |
7751 | cancel_work_sync(&priv->beacon_update); |
7752 | } | |
7753 | ||
bb8c093b | 7754 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
7755 | &dev_attr_antenna.attr, |
7756 | &dev_attr_channels.attr, | |
7757 | &dev_attr_dump_errors.attr, | |
7758 | &dev_attr_dump_events.attr, | |
7759 | &dev_attr_flags.attr, | |
7760 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 7761 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7762 | &dev_attr_measurement.attr, |
7763 | #endif | |
7764 | &dev_attr_power_level.attr, | |
b481de9c | 7765 | &dev_attr_retry_rate.attr, |
b481de9c ZY |
7766 | &dev_attr_statistics.attr, |
7767 | &dev_attr_status.attr, | |
7768 | &dev_attr_temperature.attr, | |
b481de9c ZY |
7769 | &dev_attr_tx_power.attr, |
7770 | ||
7771 | NULL | |
7772 | }; | |
7773 | ||
bb8c093b | 7774 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 7775 | .name = NULL, /* put in device directory */ |
bb8c093b | 7776 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
7777 | }; |
7778 | ||
bb8c093b CH |
7779 | static struct ieee80211_ops iwl3945_hw_ops = { |
7780 | .tx = iwl3945_mac_tx, | |
7781 | .start = iwl3945_mac_start, | |
7782 | .stop = iwl3945_mac_stop, | |
7783 | .add_interface = iwl3945_mac_add_interface, | |
7784 | .remove_interface = iwl3945_mac_remove_interface, | |
7785 | .config = iwl3945_mac_config, | |
7786 | .config_interface = iwl3945_mac_config_interface, | |
7787 | .configure_filter = iwl3945_configure_filter, | |
7788 | .set_key = iwl3945_mac_set_key, | |
7789 | .get_stats = iwl3945_mac_get_stats, | |
7790 | .get_tx_stats = iwl3945_mac_get_tx_stats, | |
7791 | .conf_tx = iwl3945_mac_conf_tx, | |
bb8c093b | 7792 | .reset_tsf = iwl3945_mac_reset_tsf, |
cd56d331 | 7793 | .bss_info_changed = iwl3945_bss_info_changed, |
bb8c093b | 7794 | .hw_scan = iwl3945_mac_hw_scan |
b481de9c ZY |
7795 | }; |
7796 | ||
bb8c093b | 7797 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
7798 | { |
7799 | int err = 0; | |
bb8c093b | 7800 | struct iwl3945_priv *priv; |
b481de9c | 7801 | struct ieee80211_hw *hw; |
82b9a121 | 7802 | struct iwl_3945_cfg *cfg = (struct iwl_3945_cfg *)(ent->driver_data); |
0359facc | 7803 | unsigned long flags; |
b481de9c | 7804 | |
cee53ddb KA |
7805 | /*********************** |
7806 | * 1. Allocating HW data | |
7807 | * ********************/ | |
7808 | ||
6440adb5 CB |
7809 | /* Disabling hardware scan means that mac80211 will perform scans |
7810 | * "the hard way", rather than using device's scan. */ | |
bb8c093b | 7811 | if (iwl3945_param_disable_hw_scan) { |
b481de9c | 7812 | IWL_DEBUG_INFO("Disabling hw_scan\n"); |
bb8c093b | 7813 | iwl3945_hw_ops.hw_scan = NULL; |
b481de9c ZY |
7814 | } |
7815 | ||
dfe7d458 | 7816 | if ((iwl3945_param_queues_num > IWL39_MAX_NUM_QUEUES) || |
bb8c093b | 7817 | (iwl3945_param_queues_num < IWL_MIN_NUM_QUEUES)) { |
b481de9c | 7818 | IWL_ERROR("invalid queues_num, should be between %d and %d\n", |
dfe7d458 | 7819 | IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES); |
b481de9c ZY |
7820 | err = -EINVAL; |
7821 | goto out; | |
7822 | } | |
7823 | ||
7824 | /* mac80211 allocates memory for this device instance, including | |
7825 | * space for this driver's private structure */ | |
bb8c093b | 7826 | hw = ieee80211_alloc_hw(sizeof(struct iwl3945_priv), &iwl3945_hw_ops); |
b481de9c ZY |
7827 | if (hw == NULL) { |
7828 | IWL_ERROR("Can not allocate network device\n"); | |
7829 | err = -ENOMEM; | |
7830 | goto out; | |
7831 | } | |
b481de9c | 7832 | |
cee53ddb | 7833 | SET_IEEE80211_DEV(hw, &pdev->dev); |
f51359a8 | 7834 | |
b481de9c ZY |
7835 | priv = hw->priv; |
7836 | priv->hw = hw; | |
b481de9c | 7837 | priv->pci_dev = pdev; |
82b9a121 | 7838 | priv->cfg = cfg; |
6440adb5 | 7839 | |
cee53ddb KA |
7840 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); |
7841 | hw->rate_control_algorithm = "iwl-3945-rs"; | |
7842 | hw->sta_data_size = sizeof(struct iwl3945_sta_priv); | |
7843 | ||
6440adb5 | 7844 | /* Select antenna (may be helpful if only one antenna is connected) */ |
bb8c093b | 7845 | priv->antenna = (enum iwl3945_antenna)iwl3945_param_antenna; |
c8b0e6e1 | 7846 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 7847 | iwl3945_debug_level = iwl3945_param_debug; |
b481de9c ZY |
7848 | atomic_set(&priv->restrict_refcnt, 0); |
7849 | #endif | |
b481de9c | 7850 | |
566bfe5a | 7851 | /* Tell mac80211 our characteristics */ |
605a0bd6 | 7852 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
566bfe5a | 7853 | IEEE80211_HW_NOISE_DBM; |
b481de9c | 7854 | |
f59ac048 | 7855 | hw->wiphy->interface_modes = |
f59ac048 LR |
7856 | BIT(NL80211_IFTYPE_STATION) | |
7857 | BIT(NL80211_IFTYPE_ADHOC); | |
7858 | ||
ea4a82dc LR |
7859 | hw->wiphy->fw_handles_regulatory = true; |
7860 | ||
6440adb5 | 7861 | /* 4 EDCA QOS priorities */ |
b481de9c ZY |
7862 | hw->queues = 4; |
7863 | ||
cee53ddb KA |
7864 | /*************************** |
7865 | * 2. Initializing PCI bus | |
7866 | * *************************/ | |
b481de9c ZY |
7867 | if (pci_enable_device(pdev)) { |
7868 | err = -ENODEV; | |
7869 | goto out_ieee80211_free_hw; | |
7870 | } | |
7871 | ||
7872 | pci_set_master(pdev); | |
7873 | ||
b481de9c ZY |
7874 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
7875 | if (!err) | |
7876 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
7877 | if (err) { | |
7878 | printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); | |
7879 | goto out_pci_disable_device; | |
7880 | } | |
7881 | ||
7882 | pci_set_drvdata(pdev, priv); | |
7883 | err = pci_request_regions(pdev, DRV_NAME); | |
7884 | if (err) | |
7885 | goto out_pci_disable_device; | |
6440adb5 | 7886 | |
cee53ddb KA |
7887 | /*********************** |
7888 | * 3. Read REV Register | |
7889 | * ********************/ | |
b481de9c ZY |
7890 | priv->hw_base = pci_iomap(pdev, 0, 0); |
7891 | if (!priv->hw_base) { | |
7892 | err = -ENODEV; | |
7893 | goto out_pci_release_regions; | |
7894 | } | |
7895 | ||
7896 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
7897 | (unsigned long long) pci_resource_len(pdev, 0)); | |
7898 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
7899 | ||
cee53ddb KA |
7900 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
7901 | * PCI Tx retries from interfering with C3 CPU state */ | |
7902 | pci_write_config_byte(pdev, 0x41, 0x00); | |
b481de9c | 7903 | |
cee53ddb KA |
7904 | /* nic init */ |
7905 | iwl3945_set_bit(priv, CSR_GIO_CHICKEN_BITS, | |
7906 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); | |
b481de9c | 7907 | |
cee53ddb | 7908 | iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
73d7b5ac ZY |
7909 | err = iwl3945_poll_direct_bit(priv, CSR_GP_CNTRL, |
7910 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
cee53ddb KA |
7911 | if (err < 0) { |
7912 | IWL_DEBUG_INFO("Failed to init the card\n"); | |
7913 | goto out_remove_sysfs; | |
7914 | } | |
b481de9c | 7915 | |
cee53ddb KA |
7916 | /*********************** |
7917 | * 4. Read EEPROM | |
7918 | * ********************/ | |
7919 | /* Read the EEPROM */ | |
7920 | err = iwl3945_eeprom_init(priv); | |
7921 | if (err) { | |
7922 | IWL_ERROR("Unable to init EEPROM\n"); | |
7923 | goto out_remove_sysfs; | |
7924 | } | |
7925 | /* MAC Address location in EEPROM same for 3945/4965 */ | |
7926 | get_eeprom_mac(priv, priv->mac_addr); | |
7927 | IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr); | |
7928 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
b481de9c | 7929 | |
cee53ddb KA |
7930 | /*********************** |
7931 | * 5. Setup HW Constants | |
7932 | * ********************/ | |
b481de9c | 7933 | /* Device-specific setup */ |
bb8c093b | 7934 | if (iwl3945_hw_set_hw_setting(priv)) { |
b481de9c | 7935 | IWL_ERROR("failed to set hw settings\n"); |
b481de9c ZY |
7936 | goto out_iounmap; |
7937 | } | |
7938 | ||
cee53ddb KA |
7939 | /*********************** |
7940 | * 6. Setup priv | |
7941 | * ********************/ | |
7942 | priv->retry_rate = 1; | |
7943 | priv->ibss_beacon = NULL; | |
7944 | ||
7945 | spin_lock_init(&priv->lock); | |
7946 | spin_lock_init(&priv->power_data.lock); | |
7947 | spin_lock_init(&priv->sta_lock); | |
7948 | spin_lock_init(&priv->hcmd_lock); | |
7949 | ||
7950 | INIT_LIST_HEAD(&priv->free_frames); | |
7951 | mutex_init(&priv->mutex); | |
7952 | ||
7953 | /* Clear the driver's (not device's) station table */ | |
7954 | iwl3945_clear_stations_table(priv); | |
7955 | ||
7956 | priv->data_retry_limit = -1; | |
7957 | priv->ieee_channels = NULL; | |
7958 | priv->ieee_rates = NULL; | |
7959 | priv->band = IEEE80211_BAND_2GHZ; | |
7960 | ||
7961 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
7962 | ||
bb8c093b | 7963 | iwl3945_reset_qos(priv); |
b481de9c ZY |
7964 | |
7965 | priv->qos_data.qos_active = 0; | |
7966 | priv->qos_data.qos_cap.val = 0; | |
b481de9c | 7967 | |
b481de9c ZY |
7968 | |
7969 | priv->rates_mask = IWL_RATES_MASK; | |
7970 | /* If power management is turned on, default to AC mode */ | |
7971 | priv->power_mode = IWL_POWER_AC; | |
7972 | priv->user_txpower_limit = IWL_DEFAULT_TX_POWER; | |
7973 | ||
cee53ddb | 7974 | err = iwl3945_init_channel_map(priv); |
b481de9c | 7975 | if (err) { |
cee53ddb | 7976 | IWL_ERROR("initializing regulatory failed: %d\n", err); |
b481de9c ZY |
7977 | goto out_release_irq; |
7978 | } | |
7979 | ||
cee53ddb | 7980 | err = iwl3945_init_geos(priv); |
b481de9c | 7981 | if (err) { |
cee53ddb KA |
7982 | IWL_ERROR("initializing geos failed: %d\n", err); |
7983 | goto out_free_channel_map; | |
b481de9c ZY |
7984 | } |
7985 | ||
cee53ddb KA |
7986 | printk(KERN_INFO DRV_NAME |
7987 | ": Detected Intel Wireless WiFi Link %s\n", priv->cfg->name); | |
7988 | ||
7989 | /*********************************** | |
7990 | * 7. Initialize Module Parameters | |
7991 | * **********************************/ | |
7992 | ||
7993 | /* Initialize module parameter values here */ | |
7994 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
7995 | if (iwl3945_param_disable) { | |
7996 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
7997 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
849e0dce RC |
7998 | } |
7999 | ||
cee53ddb KA |
8000 | |
8001 | /*********************** | |
8002 | * 8. Setup Services | |
8003 | * ********************/ | |
8004 | ||
8005 | spin_lock_irqsave(&priv->lock, flags); | |
8006 | iwl3945_disable_interrupts(priv); | |
8007 | spin_unlock_irqrestore(&priv->lock, flags); | |
8008 | ||
8009 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); | |
849e0dce | 8010 | if (err) { |
cee53ddb KA |
8011 | IWL_ERROR("failed to create sysfs device attributes\n"); |
8012 | goto out_free_geos; | |
849e0dce | 8013 | } |
849e0dce | 8014 | |
cee53ddb KA |
8015 | iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); |
8016 | iwl3945_setup_deferred_work(priv); | |
8017 | iwl3945_setup_rx_handlers(priv); | |
8018 | ||
8019 | /*********************** | |
8020 | * 9. Conclude | |
8021 | * ********************/ | |
8022 | pci_save_state(pdev); | |
8023 | pci_disable_device(pdev); | |
8024 | ||
8025 | /********************************* | |
8026 | * 10. Setup and Register mac80211 | |
8027 | * *******************************/ | |
8028 | ||
5a66926a ZY |
8029 | err = ieee80211_register_hw(priv->hw); |
8030 | if (err) { | |
8031 | IWL_ERROR("Failed to register network device (error %d)\n", err); | |
cee53ddb | 8032 | goto out_remove_sysfs; |
5a66926a | 8033 | } |
b481de9c | 8034 | |
5a66926a ZY |
8035 | priv->hw->conf.beacon_int = 100; |
8036 | priv->mac80211_registered = 1; | |
cee53ddb | 8037 | |
b481de9c | 8038 | |
ebef2008 AK |
8039 | err = iwl3945_rfkill_init(priv); |
8040 | if (err) | |
8041 | IWL_ERROR("Unable to initialize RFKILL system. " | |
8042 | "Ignoring error: %d\n", err); | |
8043 | ||
b481de9c ZY |
8044 | return 0; |
8045 | ||
cee53ddb KA |
8046 | out_remove_sysfs: |
8047 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); | |
849e0dce RC |
8048 | out_free_geos: |
8049 | iwl3945_free_geos(priv); | |
8050 | out_free_channel_map: | |
8051 | iwl3945_free_channel_map(priv); | |
cee53ddb | 8052 | |
b481de9c ZY |
8053 | |
8054 | out_release_irq: | |
b481de9c ZY |
8055 | destroy_workqueue(priv->workqueue); |
8056 | priv->workqueue = NULL; | |
bb8c093b | 8057 | iwl3945_unset_hw_setting(priv); |
b481de9c ZY |
8058 | |
8059 | out_iounmap: | |
8060 | pci_iounmap(pdev, priv->hw_base); | |
8061 | out_pci_release_regions: | |
8062 | pci_release_regions(pdev); | |
8063 | out_pci_disable_device: | |
8064 | pci_disable_device(pdev); | |
8065 | pci_set_drvdata(pdev, NULL); | |
8066 | out_ieee80211_free_hw: | |
8067 | ieee80211_free_hw(priv->hw); | |
8068 | out: | |
8069 | return err; | |
8070 | } | |
8071 | ||
c83dbf68 | 8072 | static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) |
b481de9c | 8073 | { |
bb8c093b | 8074 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
0359facc | 8075 | unsigned long flags; |
b481de9c ZY |
8076 | |
8077 | if (!priv) | |
8078 | return; | |
8079 | ||
8080 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
8081 | ||
b481de9c | 8082 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 8083 | |
bb8c093b | 8084 | iwl3945_down(priv); |
b481de9c | 8085 | |
0359facc MA |
8086 | /* make sure we flush any pending irq or |
8087 | * tasklet for the driver | |
8088 | */ | |
8089 | spin_lock_irqsave(&priv->lock, flags); | |
8090 | iwl3945_disable_interrupts(priv); | |
8091 | spin_unlock_irqrestore(&priv->lock, flags); | |
8092 | ||
8093 | iwl_synchronize_irq(priv); | |
8094 | ||
bb8c093b | 8095 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 8096 | |
ebef2008 | 8097 | iwl3945_rfkill_unregister(priv); |
bb8c093b | 8098 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
8099 | |
8100 | if (priv->rxq.bd) | |
bb8c093b CH |
8101 | iwl3945_rx_queue_free(priv, &priv->rxq); |
8102 | iwl3945_hw_txq_ctx_free(priv); | |
b481de9c | 8103 | |
bb8c093b CH |
8104 | iwl3945_unset_hw_setting(priv); |
8105 | iwl3945_clear_stations_table(priv); | |
b481de9c | 8106 | |
3ac7f146 | 8107 | if (priv->mac80211_registered) |
b481de9c | 8108 | ieee80211_unregister_hw(priv->hw); |
b481de9c | 8109 | |
6ef89d0a MA |
8110 | /*netif_stop_queue(dev); */ |
8111 | flush_workqueue(priv->workqueue); | |
8112 | ||
bb8c093b | 8113 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
b481de9c ZY |
8114 | * priv->workqueue... so we can't take down the workqueue |
8115 | * until now... */ | |
8116 | destroy_workqueue(priv->workqueue); | |
8117 | priv->workqueue = NULL; | |
8118 | ||
b481de9c ZY |
8119 | pci_iounmap(pdev, priv->hw_base); |
8120 | pci_release_regions(pdev); | |
8121 | pci_disable_device(pdev); | |
8122 | pci_set_drvdata(pdev, NULL); | |
8123 | ||
849e0dce RC |
8124 | iwl3945_free_channel_map(priv); |
8125 | iwl3945_free_geos(priv); | |
261415f7 | 8126 | kfree(priv->scan); |
b481de9c ZY |
8127 | if (priv->ibss_beacon) |
8128 | dev_kfree_skb(priv->ibss_beacon); | |
8129 | ||
8130 | ieee80211_free_hw(priv->hw); | |
8131 | } | |
8132 | ||
8133 | #ifdef CONFIG_PM | |
8134 | ||
bb8c093b | 8135 | static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 8136 | { |
bb8c093b | 8137 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8138 | |
e655b9f0 ZY |
8139 | if (priv->is_open) { |
8140 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
8141 | iwl3945_mac_stop(priv->hw); | |
8142 | priv->is_open = 1; | |
8143 | } | |
b481de9c | 8144 | |
b481de9c ZY |
8145 | pci_set_power_state(pdev, PCI_D3hot); |
8146 | ||
b481de9c ZY |
8147 | return 0; |
8148 | } | |
8149 | ||
bb8c093b | 8150 | static int iwl3945_pci_resume(struct pci_dev *pdev) |
b481de9c | 8151 | { |
bb8c093b | 8152 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8153 | |
b481de9c | 8154 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 8155 | |
e655b9f0 ZY |
8156 | if (priv->is_open) |
8157 | iwl3945_mac_start(priv->hw); | |
b481de9c | 8158 | |
e655b9f0 | 8159 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
8160 | return 0; |
8161 | } | |
8162 | ||
8163 | #endif /* CONFIG_PM */ | |
8164 | ||
ebef2008 | 8165 | /*************** RFKILL FUNCTIONS **********/ |
80fcc9e2 | 8166 | #ifdef CONFIG_IWL3945_RFKILL |
ebef2008 AK |
8167 | /* software rf-kill from user */ |
8168 | static int iwl3945_rfkill_soft_rf_kill(void *data, enum rfkill_state state) | |
8169 | { | |
8170 | struct iwl3945_priv *priv = data; | |
8171 | int err = 0; | |
8172 | ||
80fcc9e2 | 8173 | if (!priv->rfkill) |
ebef2008 AK |
8174 | return 0; |
8175 | ||
8176 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
8177 | return 0; | |
8178 | ||
a96a27f9 | 8179 | IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state); |
ebef2008 AK |
8180 | mutex_lock(&priv->mutex); |
8181 | ||
8182 | switch (state) { | |
acdfe9b4 | 8183 | case RFKILL_STATE_UNBLOCKED: |
80fcc9e2 | 8184 | if (iwl3945_is_rfkill_hw(priv)) { |
ebef2008 | 8185 | err = -EBUSY; |
80fcc9e2 AG |
8186 | goto out_unlock; |
8187 | } | |
8188 | iwl3945_radio_kill_sw(priv, 0); | |
ebef2008 | 8189 | break; |
acdfe9b4 | 8190 | case RFKILL_STATE_SOFT_BLOCKED: |
ebef2008 | 8191 | iwl3945_radio_kill_sw(priv, 1); |
ebef2008 | 8192 | break; |
acdfe9b4 | 8193 | default: |
a96a27f9 | 8194 | IWL_WARNING("we received unexpected RFKILL state %d\n", state); |
acdfe9b4 | 8195 | break; |
ebef2008 | 8196 | } |
80fcc9e2 | 8197 | out_unlock: |
ebef2008 AK |
8198 | mutex_unlock(&priv->mutex); |
8199 | ||
8200 | return err; | |
8201 | } | |
8202 | ||
8203 | int iwl3945_rfkill_init(struct iwl3945_priv *priv) | |
8204 | { | |
8205 | struct device *device = wiphy_dev(priv->hw->wiphy); | |
8206 | int ret = 0; | |
8207 | ||
8208 | BUG_ON(device == NULL); | |
8209 | ||
8210 | IWL_DEBUG_RF_KILL("Initializing RFKILL.\n"); | |
80fcc9e2 AG |
8211 | priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN); |
8212 | if (!priv->rfkill) { | |
ebef2008 AK |
8213 | IWL_ERROR("Unable to allocate rfkill device.\n"); |
8214 | ret = -ENOMEM; | |
8215 | goto error; | |
8216 | } | |
8217 | ||
80fcc9e2 AG |
8218 | priv->rfkill->name = priv->cfg->name; |
8219 | priv->rfkill->data = priv; | |
8220 | priv->rfkill->state = RFKILL_STATE_UNBLOCKED; | |
8221 | priv->rfkill->toggle_radio = iwl3945_rfkill_soft_rf_kill; | |
8222 | priv->rfkill->user_claim_unsupported = 1; | |
ebef2008 | 8223 | |
80fcc9e2 AG |
8224 | priv->rfkill->dev.class->suspend = NULL; |
8225 | priv->rfkill->dev.class->resume = NULL; | |
ebef2008 | 8226 | |
80fcc9e2 | 8227 | ret = rfkill_register(priv->rfkill); |
ebef2008 AK |
8228 | if (ret) { |
8229 | IWL_ERROR("Unable to register rfkill: %d\n", ret); | |
80fcc9e2 | 8230 | goto freed_rfkill; |
ebef2008 AK |
8231 | } |
8232 | ||
8233 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8234 | return ret; | |
8235 | ||
ebef2008 | 8236 | freed_rfkill: |
80fcc9e2 AG |
8237 | if (priv->rfkill != NULL) |
8238 | rfkill_free(priv->rfkill); | |
8239 | priv->rfkill = NULL; | |
ebef2008 AK |
8240 | |
8241 | error: | |
8242 | IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n"); | |
8243 | return ret; | |
8244 | } | |
8245 | ||
8246 | void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) | |
8247 | { | |
80fcc9e2 AG |
8248 | if (priv->rfkill) |
8249 | rfkill_unregister(priv->rfkill); | |
ebef2008 | 8250 | |
80fcc9e2 | 8251 | priv->rfkill = NULL; |
ebef2008 AK |
8252 | } |
8253 | ||
8254 | /* set rf-kill to the right state. */ | |
8255 | void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) | |
8256 | { | |
8257 | ||
80fcc9e2 AG |
8258 | if (!priv->rfkill) |
8259 | return; | |
8260 | ||
8261 | if (iwl3945_is_rfkill_hw(priv)) { | |
8262 | rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED); | |
ebef2008 | 8263 | return; |
80fcc9e2 | 8264 | } |
ebef2008 | 8265 | |
80fcc9e2 AG |
8266 | if (!iwl3945_is_rfkill_sw(priv)) |
8267 | rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED); | |
ebef2008 | 8268 | else |
80fcc9e2 | 8269 | rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED); |
ebef2008 AK |
8270 | } |
8271 | #endif | |
8272 | ||
b481de9c ZY |
8273 | /***************************************************************************** |
8274 | * | |
8275 | * driver and module entry point | |
8276 | * | |
8277 | *****************************************************************************/ | |
8278 | ||
bb8c093b | 8279 | static struct pci_driver iwl3945_driver = { |
b481de9c | 8280 | .name = DRV_NAME, |
bb8c093b CH |
8281 | .id_table = iwl3945_hw_card_ids, |
8282 | .probe = iwl3945_pci_probe, | |
8283 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 8284 | #ifdef CONFIG_PM |
bb8c093b CH |
8285 | .suspend = iwl3945_pci_suspend, |
8286 | .resume = iwl3945_pci_resume, | |
b481de9c ZY |
8287 | #endif |
8288 | }; | |
8289 | ||
bb8c093b | 8290 | static int __init iwl3945_init(void) |
b481de9c ZY |
8291 | { |
8292 | ||
8293 | int ret; | |
8294 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
8295 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
8296 | |
8297 | ret = iwl3945_rate_control_register(); | |
8298 | if (ret) { | |
8299 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
8300 | return ret; | |
8301 | } | |
8302 | ||
bb8c093b | 8303 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c ZY |
8304 | if (ret) { |
8305 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 8306 | goto error_register; |
b481de9c | 8307 | } |
c8b0e6e1 | 8308 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8309 | ret = driver_create_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c ZY |
8310 | if (ret) { |
8311 | IWL_ERROR("Unable to create driver sysfs file\n"); | |
897e1cf2 | 8312 | goto error_debug; |
b481de9c ZY |
8313 | } |
8314 | #endif | |
8315 | ||
8316 | return ret; | |
897e1cf2 RC |
8317 | |
8318 | #ifdef CONFIG_IWL3945_DEBUG | |
8319 | error_debug: | |
8320 | pci_unregister_driver(&iwl3945_driver); | |
8321 | #endif | |
8322 | error_register: | |
8323 | iwl3945_rate_control_unregister(); | |
8324 | return ret; | |
b481de9c ZY |
8325 | } |
8326 | ||
bb8c093b | 8327 | static void __exit iwl3945_exit(void) |
b481de9c | 8328 | { |
c8b0e6e1 | 8329 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8330 | driver_remove_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c | 8331 | #endif |
bb8c093b | 8332 | pci_unregister_driver(&iwl3945_driver); |
897e1cf2 | 8333 | iwl3945_rate_control_unregister(); |
b481de9c ZY |
8334 | } |
8335 | ||
a0987a8d | 8336 | MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX)); |
25cb6cad | 8337 | |
bb8c093b | 8338 | module_param_named(antenna, iwl3945_param_antenna, int, 0444); |
b481de9c | 8339 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
bb8c093b | 8340 | module_param_named(disable, iwl3945_param_disable, int, 0444); |
b481de9c | 8341 | MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); |
bb8c093b | 8342 | module_param_named(hwcrypto, iwl3945_param_hwcrypto, int, 0444); |
b481de9c ZY |
8343 | MODULE_PARM_DESC(hwcrypto, |
8344 | "using hardware crypto engine (default 0 [software])\n"); | |
bb8c093b | 8345 | module_param_named(debug, iwl3945_param_debug, int, 0444); |
b481de9c | 8346 | MODULE_PARM_DESC(debug, "debug output mask"); |
bb8c093b | 8347 | module_param_named(disable_hw_scan, iwl3945_param_disable_hw_scan, int, 0444); |
b481de9c ZY |
8348 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
8349 | ||
bb8c093b | 8350 | module_param_named(queues_num, iwl3945_param_queues_num, int, 0444); |
b481de9c ZY |
8351 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
8352 | ||
bb8c093b CH |
8353 | module_exit(iwl3945_exit); |
8354 | module_init(iwl3945_init); |