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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
3 | * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved. | |
4 | * | |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
32 | #include <linux/version.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/dma-mapping.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/skbuff.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/wireless.h> | |
40 | #include <linux/firmware.h> | |
b481de9c ZY |
41 | #include <linux/etherdevice.h> |
42 | #include <linux/if_arp.h> | |
43 | ||
44 | #include <net/ieee80211_radiotap.h> | |
45 | #include <net/mac80211.h> | |
46 | ||
47 | #include <asm/div64.h> | |
48 | ||
82b9a121 | 49 | #include "iwl-3945-core.h" |
b481de9c ZY |
50 | #include "iwl-3945.h" |
51 | #include "iwl-helpers.h" | |
52 | ||
c8b0e6e1 | 53 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 54 | u32 iwl3945_debug_level; |
b481de9c ZY |
55 | #endif |
56 | ||
bb8c093b CH |
57 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
58 | struct iwl3945_tx_queue *txq); | |
416e1438 | 59 | |
b481de9c ZY |
60 | /****************************************************************************** |
61 | * | |
62 | * module boiler plate | |
63 | * | |
64 | ******************************************************************************/ | |
65 | ||
66 | /* module parameters */ | |
6440adb5 CB |
67 | static int iwl3945_param_disable_hw_scan; /* def: 0 = use 3945's h/w scan */ |
68 | static int iwl3945_param_debug; /* def: 0 = minimal debug log messages */ | |
69 | static int iwl3945_param_disable; /* def: 0 = enable radio */ | |
9fbab516 | 70 | static int iwl3945_param_antenna; /* def: 0 = both antennas (use diversity) */ |
6440adb5 CB |
71 | int iwl3945_param_hwcrypto; /* def: 0 = use software encryption */ |
72 | static int iwl3945_param_qos_enable = 1; /* def: 1 = use quality of service */ | |
73 | int iwl3945_param_queues_num = IWL_MAX_NUM_QUEUES; /* def: 8 Tx queues */ | |
b481de9c ZY |
74 | |
75 | /* | |
76 | * module name, copyright, version, etc. | |
77 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
78 | */ | |
79 | ||
80 | #define DRV_DESCRIPTION \ | |
81 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
82 | ||
c8b0e6e1 | 83 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
84 | #define VD "d" |
85 | #else | |
86 | #define VD | |
87 | #endif | |
88 | ||
c8b0e6e1 | 89 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
90 | #define VS "s" |
91 | #else | |
92 | #define VS | |
93 | #endif | |
94 | ||
b9e0b449 | 95 | #define IWLWIFI_VERSION "1.2.26k" VD VS |
b481de9c ZY |
96 | #define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation" |
97 | #define DRV_VERSION IWLWIFI_VERSION | |
98 | ||
b481de9c ZY |
99 | |
100 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
101 | MODULE_VERSION(DRV_VERSION); | |
102 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
103 | MODULE_LICENSE("GPL"); | |
104 | ||
416e1438 | 105 | static __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr) |
b481de9c ZY |
106 | { |
107 | u16 fc = le16_to_cpu(hdr->frame_control); | |
108 | int hdr_len = ieee80211_get_hdrlen(fc); | |
109 | ||
110 | if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA)) | |
111 | return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN); | |
112 | return NULL; | |
113 | } | |
114 | ||
8318d78a JB |
115 | static const struct ieee80211_supported_band *iwl3945_get_band( |
116 | struct iwl3945_priv *priv, enum ieee80211_band band) | |
b481de9c | 117 | { |
8318d78a | 118 | return priv->hw->wiphy->bands[band]; |
b481de9c ZY |
119 | } |
120 | ||
bb8c093b | 121 | static int iwl3945_is_empty_essid(const char *essid, int essid_len) |
b481de9c ZY |
122 | { |
123 | /* Single white space is for Linksys APs */ | |
124 | if (essid_len == 1 && essid[0] == ' ') | |
125 | return 1; | |
126 | ||
127 | /* Otherwise, if the entire essid is 0, we assume it is hidden */ | |
128 | while (essid_len) { | |
129 | essid_len--; | |
130 | if (essid[essid_len] != '\0') | |
131 | return 0; | |
132 | } | |
133 | ||
134 | return 1; | |
135 | } | |
136 | ||
bb8c093b | 137 | static const char *iwl3945_escape_essid(const char *essid, u8 essid_len) |
b481de9c ZY |
138 | { |
139 | static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; | |
140 | const char *s = essid; | |
141 | char *d = escaped; | |
142 | ||
bb8c093b | 143 | if (iwl3945_is_empty_essid(essid, essid_len)) { |
b481de9c ZY |
144 | memcpy(escaped, "<hidden>", sizeof("<hidden>")); |
145 | return escaped; | |
146 | } | |
147 | ||
148 | essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); | |
149 | while (essid_len--) { | |
150 | if (*s == '\0') { | |
151 | *d++ = '\\'; | |
152 | *d++ = '0'; | |
153 | s++; | |
154 | } else | |
155 | *d++ = *s++; | |
156 | } | |
157 | *d = '\0'; | |
158 | return escaped; | |
159 | } | |
160 | ||
b481de9c ZY |
161 | /*************** DMA-QUEUE-GENERAL-FUNCTIONS ***** |
162 | * DMA services | |
163 | * | |
164 | * Theory of operation | |
165 | * | |
6440adb5 CB |
166 | * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer |
167 | * of buffer descriptors, each of which points to one or more data buffers for | |
168 | * the device to read from or fill. Driver and device exchange status of each | |
169 | * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty | |
170 | * entries in each circular buffer, to protect against confusing empty and full | |
171 | * queue states. | |
172 | * | |
173 | * The device reads or writes the data in the queues via the device's several | |
174 | * DMA/FIFO channels. Each queue is mapped to a single DMA channel. | |
b481de9c ZY |
175 | * |
176 | * For Tx queue, there are low mark and high mark limits. If, after queuing | |
177 | * the packet for Tx, free space become < low mark, Tx queue stopped. When | |
178 | * reclaiming packets (on 'tx done IRQ), if free space become > high mark, | |
179 | * Tx queue resumed. | |
180 | * | |
6440adb5 CB |
181 | * The 3945 operates with six queues: One receive queue, one transmit queue |
182 | * (#4) for sending commands to the device firmware, and four transmit queues | |
183 | * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused. | |
b481de9c ZY |
184 | ***************************************************/ |
185 | ||
bb8c093b | 186 | static int iwl3945_queue_space(const struct iwl3945_queue *q) |
b481de9c | 187 | { |
fc4b6853 | 188 | int s = q->read_ptr - q->write_ptr; |
b481de9c | 189 | |
fc4b6853 | 190 | if (q->read_ptr > q->write_ptr) |
b481de9c ZY |
191 | s -= q->n_bd; |
192 | ||
193 | if (s <= 0) | |
194 | s += q->n_window; | |
195 | /* keep some reserve to not confuse empty and full situations */ | |
196 | s -= 2; | |
197 | if (s < 0) | |
198 | s = 0; | |
199 | return s; | |
200 | } | |
201 | ||
6440adb5 CB |
202 | /** |
203 | * iwl3945_queue_inc_wrap - increment queue index, wrap back to beginning | |
204 | * @index -- current index | |
205 | * @n_bd -- total number of entries in queue (must be power of 2) | |
206 | */ | |
bb8c093b | 207 | static inline int iwl3945_queue_inc_wrap(int index, int n_bd) |
b481de9c ZY |
208 | { |
209 | return ++index & (n_bd - 1); | |
210 | } | |
211 | ||
6440adb5 CB |
212 | /** |
213 | * iwl3945_queue_dec_wrap - increment queue index, wrap back to end | |
214 | * @index -- current index | |
215 | * @n_bd -- total number of entries in queue (must be power of 2) | |
216 | */ | |
bb8c093b | 217 | static inline int iwl3945_queue_dec_wrap(int index, int n_bd) |
b481de9c ZY |
218 | { |
219 | return --index & (n_bd - 1); | |
220 | } | |
221 | ||
bb8c093b | 222 | static inline int x2_queue_used(const struct iwl3945_queue *q, int i) |
b481de9c | 223 | { |
fc4b6853 TW |
224 | return q->write_ptr > q->read_ptr ? |
225 | (i >= q->read_ptr && i < q->write_ptr) : | |
226 | !(i < q->read_ptr && i >= q->write_ptr); | |
b481de9c ZY |
227 | } |
228 | ||
bb8c093b | 229 | static inline u8 get_cmd_index(struct iwl3945_queue *q, u32 index, int is_huge) |
b481de9c | 230 | { |
6440adb5 | 231 | /* This is for scan command, the big buffer at end of command array */ |
b481de9c | 232 | if (is_huge) |
6440adb5 | 233 | return q->n_window; /* must be power of 2 */ |
b481de9c | 234 | |
6440adb5 | 235 | /* Otherwise, use normal size buffers */ |
b481de9c ZY |
236 | return index & (q->n_window - 1); |
237 | } | |
238 | ||
6440adb5 CB |
239 | /** |
240 | * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes | |
241 | */ | |
bb8c093b | 242 | static int iwl3945_queue_init(struct iwl3945_priv *priv, struct iwl3945_queue *q, |
b481de9c ZY |
243 | int count, int slots_num, u32 id) |
244 | { | |
245 | q->n_bd = count; | |
246 | q->n_window = slots_num; | |
247 | q->id = id; | |
248 | ||
bb8c093b CH |
249 | /* count must be power-of-two size, otherwise iwl3945_queue_inc_wrap |
250 | * and iwl3945_queue_dec_wrap are broken. */ | |
b481de9c ZY |
251 | BUG_ON(!is_power_of_2(count)); |
252 | ||
253 | /* slots_num must be power-of-two size, otherwise | |
254 | * get_cmd_index is broken. */ | |
255 | BUG_ON(!is_power_of_2(slots_num)); | |
256 | ||
257 | q->low_mark = q->n_window / 4; | |
258 | if (q->low_mark < 4) | |
259 | q->low_mark = 4; | |
260 | ||
261 | q->high_mark = q->n_window / 8; | |
262 | if (q->high_mark < 2) | |
263 | q->high_mark = 2; | |
264 | ||
fc4b6853 | 265 | q->write_ptr = q->read_ptr = 0; |
b481de9c ZY |
266 | |
267 | return 0; | |
268 | } | |
269 | ||
6440adb5 CB |
270 | /** |
271 | * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue | |
272 | */ | |
bb8c093b CH |
273 | static int iwl3945_tx_queue_alloc(struct iwl3945_priv *priv, |
274 | struct iwl3945_tx_queue *txq, u32 id) | |
b481de9c ZY |
275 | { |
276 | struct pci_dev *dev = priv->pci_dev; | |
277 | ||
6440adb5 CB |
278 | /* Driver private data, only for Tx (not command) queues, |
279 | * not shared with device. */ | |
b481de9c ZY |
280 | if (id != IWL_CMD_QUEUE_NUM) { |
281 | txq->txb = kmalloc(sizeof(txq->txb[0]) * | |
282 | TFD_QUEUE_SIZE_MAX, GFP_KERNEL); | |
283 | if (!txq->txb) { | |
01ebd063 | 284 | IWL_ERROR("kmalloc for auxiliary BD " |
b481de9c ZY |
285 | "structures failed\n"); |
286 | goto error; | |
287 | } | |
288 | } else | |
289 | txq->txb = NULL; | |
290 | ||
6440adb5 CB |
291 | /* Circular buffer of transmit frame descriptors (TFDs), |
292 | * shared with device */ | |
b481de9c ZY |
293 | txq->bd = pci_alloc_consistent(dev, |
294 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX, | |
295 | &txq->q.dma_addr); | |
296 | ||
297 | if (!txq->bd) { | |
298 | IWL_ERROR("pci_alloc_consistent(%zd) failed\n", | |
299 | sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX); | |
300 | goto error; | |
301 | } | |
302 | txq->q.id = id; | |
303 | ||
304 | return 0; | |
305 | ||
306 | error: | |
307 | if (txq->txb) { | |
308 | kfree(txq->txb); | |
309 | txq->txb = NULL; | |
310 | } | |
311 | ||
312 | return -ENOMEM; | |
313 | } | |
314 | ||
6440adb5 CB |
315 | /** |
316 | * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue | |
317 | */ | |
bb8c093b CH |
318 | int iwl3945_tx_queue_init(struct iwl3945_priv *priv, |
319 | struct iwl3945_tx_queue *txq, int slots_num, u32 txq_id) | |
b481de9c ZY |
320 | { |
321 | struct pci_dev *dev = priv->pci_dev; | |
322 | int len; | |
323 | int rc = 0; | |
324 | ||
6440adb5 CB |
325 | /* |
326 | * Alloc buffer array for commands (Tx or other types of commands). | |
327 | * For the command queue (#4), allocate command space + one big | |
328 | * command for scan, since scan command is very huge; the system will | |
329 | * not have two scans at the same time, so only one is needed. | |
330 | * For data Tx queues (all other queues), no super-size command | |
331 | * space is needed. | |
332 | */ | |
bb8c093b | 333 | len = sizeof(struct iwl3945_cmd) * slots_num; |
b481de9c ZY |
334 | if (txq_id == IWL_CMD_QUEUE_NUM) |
335 | len += IWL_MAX_SCAN_SIZE; | |
336 | txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd); | |
337 | if (!txq->cmd) | |
338 | return -ENOMEM; | |
339 | ||
6440adb5 | 340 | /* Alloc driver data array and TFD circular buffer */ |
bb8c093b | 341 | rc = iwl3945_tx_queue_alloc(priv, txq, txq_id); |
b481de9c ZY |
342 | if (rc) { |
343 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); | |
344 | ||
345 | return -ENOMEM; | |
346 | } | |
347 | txq->need_update = 0; | |
348 | ||
349 | /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise | |
bb8c093b | 350 | * iwl3945_queue_inc_wrap and iwl3945_queue_dec_wrap are broken. */ |
b481de9c | 351 | BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); |
6440adb5 CB |
352 | |
353 | /* Initialize queue high/low-water, head/tail indexes */ | |
bb8c093b | 354 | iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); |
b481de9c | 355 | |
6440adb5 | 356 | /* Tell device where to find queue, enable DMA channel. */ |
bb8c093b | 357 | iwl3945_hw_tx_queue_init(priv, txq); |
b481de9c ZY |
358 | |
359 | return 0; | |
360 | } | |
361 | ||
362 | /** | |
bb8c093b | 363 | * iwl3945_tx_queue_free - Deallocate DMA queue. |
b481de9c ZY |
364 | * @txq: Transmit queue to deallocate. |
365 | * | |
366 | * Empty queue by removing and destroying all BD's. | |
6440adb5 CB |
367 | * Free all buffers. |
368 | * 0-fill, but do not free "txq" descriptor structure. | |
b481de9c | 369 | */ |
bb8c093b | 370 | void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq) |
b481de9c | 371 | { |
bb8c093b | 372 | struct iwl3945_queue *q = &txq->q; |
b481de9c ZY |
373 | struct pci_dev *dev = priv->pci_dev; |
374 | int len; | |
375 | ||
376 | if (q->n_bd == 0) | |
377 | return; | |
378 | ||
379 | /* first, empty all BD's */ | |
fc4b6853 | 380 | for (; q->write_ptr != q->read_ptr; |
bb8c093b CH |
381 | q->read_ptr = iwl3945_queue_inc_wrap(q->read_ptr, q->n_bd)) |
382 | iwl3945_hw_txq_free_tfd(priv, txq); | |
b481de9c | 383 | |
bb8c093b | 384 | len = sizeof(struct iwl3945_cmd) * q->n_window; |
b481de9c ZY |
385 | if (q->id == IWL_CMD_QUEUE_NUM) |
386 | len += IWL_MAX_SCAN_SIZE; | |
387 | ||
6440adb5 | 388 | /* De-alloc array of command/tx buffers */ |
b481de9c ZY |
389 | pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd); |
390 | ||
6440adb5 | 391 | /* De-alloc circular buffer of TFDs */ |
b481de9c | 392 | if (txq->q.n_bd) |
bb8c093b | 393 | pci_free_consistent(dev, sizeof(struct iwl3945_tfd_frame) * |
b481de9c ZY |
394 | txq->q.n_bd, txq->bd, txq->q.dma_addr); |
395 | ||
6440adb5 | 396 | /* De-alloc array of per-TFD driver data */ |
b481de9c ZY |
397 | if (txq->txb) { |
398 | kfree(txq->txb); | |
399 | txq->txb = NULL; | |
400 | } | |
401 | ||
6440adb5 | 402 | /* 0-fill queue descriptor structure */ |
b481de9c ZY |
403 | memset(txq, 0, sizeof(*txq)); |
404 | } | |
405 | ||
bb8c093b | 406 | const u8 iwl3945_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
b481de9c ZY |
407 | |
408 | /*************** STATION TABLE MANAGEMENT **** | |
9fbab516 | 409 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
410 | * the functionality provided here |
411 | */ | |
412 | ||
413 | /**************************************************************/ | |
01ebd063 | 414 | #if 0 /* temporary disable till we add real remove station */ |
6440adb5 CB |
415 | /** |
416 | * iwl3945_remove_station - Remove driver's knowledge of station. | |
417 | * | |
418 | * NOTE: This does not remove station from device's station table. | |
419 | */ | |
bb8c093b | 420 | static u8 iwl3945_remove_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap) |
b481de9c ZY |
421 | { |
422 | int index = IWL_INVALID_STATION; | |
423 | int i; | |
424 | unsigned long flags; | |
425 | ||
426 | spin_lock_irqsave(&priv->sta_lock, flags); | |
427 | ||
428 | if (is_ap) | |
429 | index = IWL_AP_ID; | |
430 | else if (is_broadcast_ether_addr(addr)) | |
431 | index = priv->hw_setting.bcast_sta_id; | |
432 | else | |
433 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) | |
434 | if (priv->stations[i].used && | |
435 | !compare_ether_addr(priv->stations[i].sta.sta.addr, | |
436 | addr)) { | |
437 | index = i; | |
438 | break; | |
439 | } | |
440 | ||
441 | if (unlikely(index == IWL_INVALID_STATION)) | |
442 | goto out; | |
443 | ||
444 | if (priv->stations[index].used) { | |
445 | priv->stations[index].used = 0; | |
446 | priv->num_stations--; | |
447 | } | |
448 | ||
449 | BUG_ON(priv->num_stations < 0); | |
450 | ||
451 | out: | |
452 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
453 | return 0; | |
454 | } | |
556f8db7 | 455 | #endif |
6440adb5 CB |
456 | |
457 | /** | |
458 | * iwl3945_clear_stations_table - Clear the driver's station table | |
459 | * | |
460 | * NOTE: This does not clear or otherwise alter the device's station table. | |
461 | */ | |
bb8c093b | 462 | static void iwl3945_clear_stations_table(struct iwl3945_priv *priv) |
b481de9c ZY |
463 | { |
464 | unsigned long flags; | |
465 | ||
466 | spin_lock_irqsave(&priv->sta_lock, flags); | |
467 | ||
468 | priv->num_stations = 0; | |
469 | memset(priv->stations, 0, sizeof(priv->stations)); | |
470 | ||
471 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
472 | } | |
473 | ||
6440adb5 CB |
474 | /** |
475 | * iwl3945_add_station - Add station to station tables in driver and device | |
476 | */ | |
bb8c093b | 477 | u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap, u8 flags) |
b481de9c ZY |
478 | { |
479 | int i; | |
480 | int index = IWL_INVALID_STATION; | |
bb8c093b | 481 | struct iwl3945_station_entry *station; |
b481de9c | 482 | unsigned long flags_spin; |
0795af57 | 483 | DECLARE_MAC_BUF(mac); |
c14c521e | 484 | u8 rate; |
b481de9c ZY |
485 | |
486 | spin_lock_irqsave(&priv->sta_lock, flags_spin); | |
487 | if (is_ap) | |
488 | index = IWL_AP_ID; | |
489 | else if (is_broadcast_ether_addr(addr)) | |
490 | index = priv->hw_setting.bcast_sta_id; | |
491 | else | |
492 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) { | |
493 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, | |
494 | addr)) { | |
495 | index = i; | |
496 | break; | |
497 | } | |
498 | ||
499 | if (!priv->stations[i].used && | |
500 | index == IWL_INVALID_STATION) | |
501 | index = i; | |
502 | } | |
503 | ||
01ebd063 | 504 | /* These two conditions has the same outcome but keep them separate |
b481de9c ZY |
505 | since they have different meaning */ |
506 | if (unlikely(index == IWL_INVALID_STATION)) { | |
507 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
508 | return index; | |
509 | } | |
510 | ||
511 | if (priv->stations[index].used && | |
512 | !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) { | |
513 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
514 | return index; | |
515 | } | |
516 | ||
0795af57 | 517 | IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr)); |
b481de9c ZY |
518 | station = &priv->stations[index]; |
519 | station->used = 1; | |
520 | priv->num_stations++; | |
521 | ||
6440adb5 | 522 | /* Set up the REPLY_ADD_STA command to send to device */ |
bb8c093b | 523 | memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd)); |
b481de9c ZY |
524 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
525 | station->sta.mode = 0; | |
526 | station->sta.sta.sta_id = index; | |
527 | station->sta.station_flags = 0; | |
528 | ||
8318d78a | 529 | if (priv->band == IEEE80211_BAND_5GHZ) |
69946333 TW |
530 | rate = IWL_RATE_6M_PLCP; |
531 | else | |
532 | rate = IWL_RATE_1M_PLCP; | |
c14c521e ZY |
533 | |
534 | /* Turn on both antennas for the station... */ | |
535 | station->sta.rate_n_flags = | |
bb8c093b | 536 | iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK); |
c14c521e ZY |
537 | station->current_rate.rate_n_flags = |
538 | le16_to_cpu(station->sta.rate_n_flags); | |
539 | ||
b481de9c | 540 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
6440adb5 CB |
541 | |
542 | /* Add station to device's station table */ | |
bb8c093b | 543 | iwl3945_send_add_station(priv, &station->sta, flags); |
b481de9c ZY |
544 | return index; |
545 | ||
546 | } | |
547 | ||
548 | /*************** DRIVER STATUS FUNCTIONS *****/ | |
549 | ||
bb8c093b | 550 | static inline int iwl3945_is_ready(struct iwl3945_priv *priv) |
b481de9c ZY |
551 | { |
552 | /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are | |
553 | * set but EXIT_PENDING is not */ | |
554 | return test_bit(STATUS_READY, &priv->status) && | |
555 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) && | |
556 | !test_bit(STATUS_EXIT_PENDING, &priv->status); | |
557 | } | |
558 | ||
bb8c093b | 559 | static inline int iwl3945_is_alive(struct iwl3945_priv *priv) |
b481de9c ZY |
560 | { |
561 | return test_bit(STATUS_ALIVE, &priv->status); | |
562 | } | |
563 | ||
bb8c093b | 564 | static inline int iwl3945_is_init(struct iwl3945_priv *priv) |
b481de9c ZY |
565 | { |
566 | return test_bit(STATUS_INIT, &priv->status); | |
567 | } | |
568 | ||
bb8c093b | 569 | static inline int iwl3945_is_rfkill(struct iwl3945_priv *priv) |
b481de9c ZY |
570 | { |
571 | return test_bit(STATUS_RF_KILL_HW, &priv->status) || | |
572 | test_bit(STATUS_RF_KILL_SW, &priv->status); | |
573 | } | |
574 | ||
bb8c093b | 575 | static inline int iwl3945_is_ready_rf(struct iwl3945_priv *priv) |
b481de9c ZY |
576 | { |
577 | ||
bb8c093b | 578 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
579 | return 0; |
580 | ||
bb8c093b | 581 | return iwl3945_is_ready(priv); |
b481de9c ZY |
582 | } |
583 | ||
584 | /*************** HOST COMMAND QUEUE FUNCTIONS *****/ | |
585 | ||
586 | #define IWL_CMD(x) case x : return #x | |
587 | ||
588 | static const char *get_cmd_string(u8 cmd) | |
589 | { | |
590 | switch (cmd) { | |
591 | IWL_CMD(REPLY_ALIVE); | |
592 | IWL_CMD(REPLY_ERROR); | |
593 | IWL_CMD(REPLY_RXON); | |
594 | IWL_CMD(REPLY_RXON_ASSOC); | |
595 | IWL_CMD(REPLY_QOS_PARAM); | |
596 | IWL_CMD(REPLY_RXON_TIMING); | |
597 | IWL_CMD(REPLY_ADD_STA); | |
598 | IWL_CMD(REPLY_REMOVE_STA); | |
599 | IWL_CMD(REPLY_REMOVE_ALL_STA); | |
600 | IWL_CMD(REPLY_3945_RX); | |
601 | IWL_CMD(REPLY_TX); | |
602 | IWL_CMD(REPLY_RATE_SCALE); | |
603 | IWL_CMD(REPLY_LEDS_CMD); | |
604 | IWL_CMD(REPLY_TX_LINK_QUALITY_CMD); | |
605 | IWL_CMD(RADAR_NOTIFICATION); | |
606 | IWL_CMD(REPLY_QUIET_CMD); | |
607 | IWL_CMD(REPLY_CHANNEL_SWITCH); | |
608 | IWL_CMD(CHANNEL_SWITCH_NOTIFICATION); | |
609 | IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD); | |
610 | IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION); | |
611 | IWL_CMD(POWER_TABLE_CMD); | |
612 | IWL_CMD(PM_SLEEP_NOTIFICATION); | |
613 | IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC); | |
614 | IWL_CMD(REPLY_SCAN_CMD); | |
615 | IWL_CMD(REPLY_SCAN_ABORT_CMD); | |
616 | IWL_CMD(SCAN_START_NOTIFICATION); | |
617 | IWL_CMD(SCAN_RESULTS_NOTIFICATION); | |
618 | IWL_CMD(SCAN_COMPLETE_NOTIFICATION); | |
619 | IWL_CMD(BEACON_NOTIFICATION); | |
620 | IWL_CMD(REPLY_TX_BEACON); | |
621 | IWL_CMD(WHO_IS_AWAKE_NOTIFICATION); | |
622 | IWL_CMD(QUIET_NOTIFICATION); | |
623 | IWL_CMD(REPLY_TX_PWR_TABLE_CMD); | |
624 | IWL_CMD(MEASURE_ABORT_NOTIFICATION); | |
625 | IWL_CMD(REPLY_BT_CONFIG); | |
626 | IWL_CMD(REPLY_STATISTICS_CMD); | |
627 | IWL_CMD(STATISTICS_NOTIFICATION); | |
628 | IWL_CMD(REPLY_CARD_STATE_CMD); | |
629 | IWL_CMD(CARD_STATE_NOTIFICATION); | |
630 | IWL_CMD(MISSED_BEACONS_NOTIFICATION); | |
631 | default: | |
632 | return "UNKNOWN"; | |
633 | ||
634 | } | |
635 | } | |
636 | ||
637 | #define HOST_COMPLETE_TIMEOUT (HZ / 2) | |
638 | ||
639 | /** | |
bb8c093b | 640 | * iwl3945_enqueue_hcmd - enqueue a uCode command |
b481de9c ZY |
641 | * @priv: device private data point |
642 | * @cmd: a point to the ucode command structure | |
643 | * | |
644 | * The function returns < 0 values to indicate the operation is | |
645 | * failed. On success, it turns the index (> 0) of command in the | |
646 | * command queue. | |
647 | */ | |
bb8c093b | 648 | static int iwl3945_enqueue_hcmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 649 | { |
bb8c093b CH |
650 | struct iwl3945_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; |
651 | struct iwl3945_queue *q = &txq->q; | |
652 | struct iwl3945_tfd_frame *tfd; | |
b481de9c | 653 | u32 *control_flags; |
bb8c093b | 654 | struct iwl3945_cmd *out_cmd; |
b481de9c ZY |
655 | u32 idx; |
656 | u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr)); | |
657 | dma_addr_t phys_addr; | |
658 | int pad; | |
659 | u16 count; | |
660 | int ret; | |
661 | unsigned long flags; | |
662 | ||
663 | /* If any of the command structures end up being larger than | |
664 | * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then | |
665 | * we will need to increase the size of the TFD entries */ | |
666 | BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) && | |
667 | !(cmd->meta.flags & CMD_SIZE_HUGE)); | |
668 | ||
c342a1b9 GG |
669 | |
670 | if (iwl3945_is_rfkill(priv)) { | |
671 | IWL_DEBUG_INFO("Not sending command - RF KILL"); | |
672 | return -EIO; | |
673 | } | |
674 | ||
bb8c093b | 675 | if (iwl3945_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) { |
b481de9c ZY |
676 | IWL_ERROR("No space for Tx\n"); |
677 | return -ENOSPC; | |
678 | } | |
679 | ||
680 | spin_lock_irqsave(&priv->hcmd_lock, flags); | |
681 | ||
fc4b6853 | 682 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
683 | memset(tfd, 0, sizeof(*tfd)); |
684 | ||
685 | control_flags = (u32 *) tfd; | |
686 | ||
fc4b6853 | 687 | idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE); |
b481de9c ZY |
688 | out_cmd = &txq->cmd[idx]; |
689 | ||
690 | out_cmd->hdr.cmd = cmd->id; | |
691 | memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta)); | |
692 | memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len); | |
693 | ||
694 | /* At this point, the out_cmd now has all of the incoming cmd | |
695 | * information */ | |
696 | ||
697 | out_cmd->hdr.flags = 0; | |
698 | out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) | | |
fc4b6853 | 699 | INDEX_TO_SEQ(q->write_ptr)); |
b481de9c ZY |
700 | if (out_cmd->meta.flags & CMD_SIZE_HUGE) |
701 | out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME); | |
702 | ||
703 | phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx + | |
bb8c093b CH |
704 | offsetof(struct iwl3945_cmd, hdr); |
705 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size); | |
b481de9c ZY |
706 | |
707 | pad = U32_PAD(cmd->len); | |
708 | count = TFD_CTL_COUNT_GET(*control_flags); | |
709 | *control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad); | |
710 | ||
711 | IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, " | |
712 | "%d bytes at %d[%d]:%d\n", | |
713 | get_cmd_string(out_cmd->hdr.cmd), | |
714 | out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence), | |
fc4b6853 | 715 | fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM); |
b481de9c ZY |
716 | |
717 | txq->need_update = 1; | |
6440adb5 CB |
718 | |
719 | /* Increment and update queue's write index */ | |
bb8c093b CH |
720 | q->write_ptr = iwl3945_queue_inc_wrap(q->write_ptr, q->n_bd); |
721 | ret = iwl3945_tx_queue_update_write_ptr(priv, txq); | |
b481de9c ZY |
722 | |
723 | spin_unlock_irqrestore(&priv->hcmd_lock, flags); | |
724 | return ret ? ret : idx; | |
725 | } | |
726 | ||
bb8c093b | 727 | static int iwl3945_send_cmd_async(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
728 | { |
729 | int ret; | |
730 | ||
731 | BUG_ON(!(cmd->meta.flags & CMD_ASYNC)); | |
732 | ||
733 | /* An asynchronous command can not expect an SKB to be set. */ | |
734 | BUG_ON(cmd->meta.flags & CMD_WANT_SKB); | |
735 | ||
736 | /* An asynchronous command MUST have a callback. */ | |
737 | BUG_ON(!cmd->meta.u.callback); | |
738 | ||
739 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
740 | return -EBUSY; | |
741 | ||
bb8c093b | 742 | ret = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c | 743 | if (ret < 0) { |
bb8c093b | 744 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
745 | get_cmd_string(cmd->id), ret); |
746 | return ret; | |
747 | } | |
748 | return 0; | |
749 | } | |
750 | ||
bb8c093b | 751 | static int iwl3945_send_cmd_sync(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c ZY |
752 | { |
753 | int cmd_idx; | |
754 | int ret; | |
755 | static atomic_t entry = ATOMIC_INIT(0); /* reentrance protection */ | |
756 | ||
757 | BUG_ON(cmd->meta.flags & CMD_ASYNC); | |
758 | ||
759 | /* A synchronous command can not have a callback set. */ | |
760 | BUG_ON(cmd->meta.u.callback != NULL); | |
761 | ||
762 | if (atomic_xchg(&entry, 1)) { | |
763 | IWL_ERROR("Error sending %s: Already sending a host command\n", | |
764 | get_cmd_string(cmd->id)); | |
765 | return -EBUSY; | |
766 | } | |
767 | ||
768 | set_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
769 | ||
770 | if (cmd->meta.flags & CMD_WANT_SKB) | |
771 | cmd->meta.source = &cmd->meta; | |
772 | ||
bb8c093b | 773 | cmd_idx = iwl3945_enqueue_hcmd(priv, cmd); |
b481de9c ZY |
774 | if (cmd_idx < 0) { |
775 | ret = cmd_idx; | |
bb8c093b | 776 | IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n", |
b481de9c ZY |
777 | get_cmd_string(cmd->id), ret); |
778 | goto out; | |
779 | } | |
780 | ||
781 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
782 | !test_bit(STATUS_HCMD_ACTIVE, &priv->status), | |
783 | HOST_COMPLETE_TIMEOUT); | |
784 | if (!ret) { | |
785 | if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) { | |
786 | IWL_ERROR("Error sending %s: time out after %dms.\n", | |
787 | get_cmd_string(cmd->id), | |
788 | jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); | |
789 | ||
790 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
791 | ret = -ETIMEDOUT; | |
792 | goto cancel; | |
793 | } | |
794 | } | |
795 | ||
796 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
797 | IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n", | |
798 | get_cmd_string(cmd->id)); | |
799 | ret = -ECANCELED; | |
800 | goto fail; | |
801 | } | |
802 | if (test_bit(STATUS_FW_ERROR, &priv->status)) { | |
803 | IWL_DEBUG_INFO("Command %s failed: FW Error\n", | |
804 | get_cmd_string(cmd->id)); | |
805 | ret = -EIO; | |
806 | goto fail; | |
807 | } | |
808 | if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) { | |
809 | IWL_ERROR("Error: Response NULL in '%s'\n", | |
810 | get_cmd_string(cmd->id)); | |
811 | ret = -EIO; | |
812 | goto out; | |
813 | } | |
814 | ||
815 | ret = 0; | |
816 | goto out; | |
817 | ||
818 | cancel: | |
819 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
bb8c093b | 820 | struct iwl3945_cmd *qcmd; |
b481de9c ZY |
821 | |
822 | /* Cancel the CMD_WANT_SKB flag for the cmd in the | |
823 | * TX cmd queue. Otherwise in case the cmd comes | |
824 | * in later, it will possibly set an invalid | |
825 | * address (cmd->meta.source). */ | |
826 | qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx]; | |
827 | qcmd->meta.flags &= ~CMD_WANT_SKB; | |
828 | } | |
829 | fail: | |
830 | if (cmd->meta.u.skb) { | |
831 | dev_kfree_skb_any(cmd->meta.u.skb); | |
832 | cmd->meta.u.skb = NULL; | |
833 | } | |
834 | out: | |
835 | atomic_set(&entry, 0); | |
836 | return ret; | |
837 | } | |
838 | ||
bb8c093b | 839 | int iwl3945_send_cmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd) |
b481de9c | 840 | { |
b481de9c | 841 | if (cmd->meta.flags & CMD_ASYNC) |
bb8c093b | 842 | return iwl3945_send_cmd_async(priv, cmd); |
b481de9c | 843 | |
bb8c093b | 844 | return iwl3945_send_cmd_sync(priv, cmd); |
b481de9c ZY |
845 | } |
846 | ||
bb8c093b | 847 | int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len, const void *data) |
b481de9c | 848 | { |
bb8c093b | 849 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
850 | .id = id, |
851 | .len = len, | |
852 | .data = data, | |
853 | }; | |
854 | ||
bb8c093b | 855 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
856 | } |
857 | ||
bb8c093b | 858 | static int __must_check iwl3945_send_cmd_u32(struct iwl3945_priv *priv, u8 id, u32 val) |
b481de9c | 859 | { |
bb8c093b | 860 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
861 | .id = id, |
862 | .len = sizeof(val), | |
863 | .data = &val, | |
864 | }; | |
865 | ||
bb8c093b | 866 | return iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
867 | } |
868 | ||
bb8c093b | 869 | int iwl3945_send_statistics_request(struct iwl3945_priv *priv) |
b481de9c | 870 | { |
bb8c093b | 871 | return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0); |
b481de9c ZY |
872 | } |
873 | ||
b481de9c | 874 | /** |
bb8c093b | 875 | * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON |
8318d78a JB |
876 | * @band: 2.4 or 5 GHz band |
877 | * @channel: Any channel valid for the requested band | |
b481de9c | 878 | |
8318d78a | 879 | * In addition to setting the staging RXON, priv->band is also set. |
b481de9c ZY |
880 | * |
881 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
8318d78a | 882 | * in the staging RXON flag structure based on the band |
b481de9c | 883 | */ |
8318d78a JB |
884 | static int iwl3945_set_rxon_channel(struct iwl3945_priv *priv, |
885 | enum ieee80211_band band, | |
886 | u16 channel) | |
b481de9c | 887 | { |
8318d78a | 888 | if (!iwl3945_get_channel_info(priv, band, channel)) { |
b481de9c | 889 | IWL_DEBUG_INFO("Could not set channel to %d [%d]\n", |
8318d78a | 890 | channel, band); |
b481de9c ZY |
891 | return -EINVAL; |
892 | } | |
893 | ||
894 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && | |
8318d78a | 895 | (priv->band == band)) |
b481de9c ZY |
896 | return 0; |
897 | ||
898 | priv->staging_rxon.channel = cpu_to_le16(channel); | |
8318d78a | 899 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
900 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; |
901 | else | |
902 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
903 | ||
8318d78a | 904 | priv->band = band; |
b481de9c | 905 | |
8318d78a | 906 | IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band); |
b481de9c ZY |
907 | |
908 | return 0; | |
909 | } | |
910 | ||
911 | /** | |
bb8c093b | 912 | * iwl3945_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
913 | * |
914 | * NOTE: This is really only useful during development and can eventually | |
915 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
916 | * making changes | |
917 | */ | |
bb8c093b | 918 | static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c ZY |
919 | { |
920 | int error = 0; | |
921 | int counter = 1; | |
922 | ||
923 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
924 | error |= le32_to_cpu(rxon->flags & | |
925 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
926 | RXON_FLG_RADAR_DETECT_MSK)); | |
927 | if (error) | |
928 | IWL_WARNING("check 24G fields %d | %d\n", | |
929 | counter++, error); | |
930 | } else { | |
931 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
932 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
933 | if (error) | |
934 | IWL_WARNING("check 52 fields %d | %d\n", | |
935 | counter++, error); | |
936 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
937 | if (error) | |
938 | IWL_WARNING("check 52 CCK %d | %d\n", | |
939 | counter++, error); | |
940 | } | |
941 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
942 | if (error) | |
943 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
944 | ||
945 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
946 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
947 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
948 | if (error) | |
949 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
950 | ||
951 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
952 | if (error) | |
953 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
954 | ||
955 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
956 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
957 | if (error) | |
958 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
959 | counter++, error); | |
960 | ||
961 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
962 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
963 | if (error) | |
964 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
965 | counter++, error); | |
966 | ||
967 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
968 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
969 | if (error) | |
970 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
971 | counter++, error); | |
972 | ||
973 | if ((rxon->flags & RXON_FLG_DIS_DIV_MSK)) | |
974 | error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK | | |
975 | RXON_FLG_ANT_A_MSK)) == 0); | |
976 | if (error) | |
977 | IWL_WARNING("check antenna %d %d\n", counter++, error); | |
978 | ||
979 | if (error) | |
980 | IWL_WARNING("Tuning to channel %d\n", | |
981 | le16_to_cpu(rxon->channel)); | |
982 | ||
983 | if (error) { | |
bb8c093b | 984 | IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
985 | return -1; |
986 | } | |
987 | return 0; | |
988 | } | |
989 | ||
990 | /** | |
9fbab516 | 991 | * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 992 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 993 | * |
9fbab516 BC |
994 | * If the RXON structure is changing enough to require a new tune, |
995 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
996 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 997 | */ |
bb8c093b | 998 | static int iwl3945_full_rxon_required(struct iwl3945_priv *priv) |
b481de9c ZY |
999 | { |
1000 | ||
1001 | /* These items are only settable from the full RXON command */ | |
1002 | if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) || | |
1003 | compare_ether_addr(priv->staging_rxon.bssid_addr, | |
1004 | priv->active_rxon.bssid_addr) || | |
1005 | compare_ether_addr(priv->staging_rxon.node_addr, | |
1006 | priv->active_rxon.node_addr) || | |
1007 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
1008 | priv->active_rxon.wlap_bssid_addr) || | |
1009 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
1010 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
1011 | (priv->staging_rxon.air_propagation != | |
1012 | priv->active_rxon.air_propagation) || | |
1013 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
1014 | return 1; | |
1015 | ||
1016 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
1017 | * be updated with the RXON_ASSOC command -- however only some | |
1018 | * flag transitions are allowed using RXON_ASSOC */ | |
1019 | ||
1020 | /* Check if we are not switching bands */ | |
1021 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
1022 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
1023 | return 1; | |
1024 | ||
1025 | /* Check if we are switching association toggle */ | |
1026 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
1027 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
1028 | return 1; | |
1029 | ||
1030 | return 0; | |
1031 | } | |
1032 | ||
bb8c093b | 1033 | static int iwl3945_send_rxon_assoc(struct iwl3945_priv *priv) |
b481de9c ZY |
1034 | { |
1035 | int rc = 0; | |
bb8c093b CH |
1036 | struct iwl3945_rx_packet *res = NULL; |
1037 | struct iwl3945_rxon_assoc_cmd rxon_assoc; | |
1038 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
1039 | .id = REPLY_RXON_ASSOC, |
1040 | .len = sizeof(rxon_assoc), | |
1041 | .meta.flags = CMD_WANT_SKB, | |
1042 | .data = &rxon_assoc, | |
1043 | }; | |
bb8c093b CH |
1044 | const struct iwl3945_rxon_cmd *rxon1 = &priv->staging_rxon; |
1045 | const struct iwl3945_rxon_cmd *rxon2 = &priv->active_rxon; | |
b481de9c ZY |
1046 | |
1047 | if ((rxon1->flags == rxon2->flags) && | |
1048 | (rxon1->filter_flags == rxon2->filter_flags) && | |
1049 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
1050 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
1051 | IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n"); | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | rxon_assoc.flags = priv->staging_rxon.flags; | |
1056 | rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; | |
1057 | rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; | |
1058 | rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; | |
1059 | rxon_assoc.reserved = 0; | |
1060 | ||
bb8c093b | 1061 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1062 | if (rc) |
1063 | return rc; | |
1064 | ||
bb8c093b | 1065 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1066 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1067 | IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n"); | |
1068 | rc = -EIO; | |
1069 | } | |
1070 | ||
1071 | priv->alloc_rxb_skb--; | |
1072 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1073 | ||
1074 | return rc; | |
1075 | } | |
1076 | ||
1077 | /** | |
bb8c093b | 1078 | * iwl3945_commit_rxon - commit staging_rxon to hardware |
b481de9c | 1079 | * |
01ebd063 | 1080 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
1081 | * the active_rxon structure is updated with the new data. This |
1082 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
1083 | * a HW tune is required based on the RXON structure changes. | |
1084 | */ | |
bb8c093b | 1085 | static int iwl3945_commit_rxon(struct iwl3945_priv *priv) |
b481de9c ZY |
1086 | { |
1087 | /* cast away the const for active_rxon in this function */ | |
bb8c093b | 1088 | struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
b481de9c | 1089 | int rc = 0; |
0795af57 | 1090 | DECLARE_MAC_BUF(mac); |
b481de9c | 1091 | |
bb8c093b | 1092 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
1093 | return -1; |
1094 | ||
1095 | /* always get timestamp with Rx frame */ | |
1096 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
1097 | ||
1098 | /* select antenna */ | |
1099 | priv->staging_rxon.flags &= | |
1100 | ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); | |
1101 | priv->staging_rxon.flags |= iwl3945_get_antenna_flags(priv); | |
1102 | ||
bb8c093b | 1103 | rc = iwl3945_check_rxon_cmd(&priv->staging_rxon); |
b481de9c ZY |
1104 | if (rc) { |
1105 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); | |
1106 | return -EINVAL; | |
1107 | } | |
1108 | ||
1109 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 1110 | * iwl3945_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 1111 | * and other flags for the current radio configuration. */ |
bb8c093b CH |
1112 | if (!iwl3945_full_rxon_required(priv)) { |
1113 | rc = iwl3945_send_rxon_assoc(priv); | |
b481de9c ZY |
1114 | if (rc) { |
1115 | IWL_ERROR("Error setting RXON_ASSOC " | |
1116 | "configuration (%d).\n", rc); | |
1117 | return rc; | |
1118 | } | |
1119 | ||
1120 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1121 | ||
1122 | return 0; | |
1123 | } | |
1124 | ||
1125 | /* If we are currently associated and the new config requires | |
1126 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
1127 | * we must clear the associated from the active configuration | |
1128 | * before we apply the new config */ | |
bb8c093b | 1129 | if (iwl3945_is_associated(priv) && |
b481de9c ZY |
1130 | (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) { |
1131 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); | |
1132 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1133 | ||
bb8c093b CH |
1134 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1135 | sizeof(struct iwl3945_rxon_cmd), | |
b481de9c ZY |
1136 | &priv->active_rxon); |
1137 | ||
1138 | /* If the mask clearing failed then we set | |
1139 | * active_rxon back to what it was previously */ | |
1140 | if (rc) { | |
1141 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
1142 | IWL_ERROR("Error clearing ASSOC_MSK on current " | |
1143 | "configuration (%d).\n", rc); | |
1144 | return rc; | |
1145 | } | |
b481de9c ZY |
1146 | } |
1147 | ||
1148 | IWL_DEBUG_INFO("Sending RXON\n" | |
1149 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
1150 | "* channel = %d\n" | |
0795af57 | 1151 | "* bssid = %s\n", |
b481de9c ZY |
1152 | ((priv->staging_rxon.filter_flags & |
1153 | RXON_FILTER_ASSOC_MSK) ? "" : "out"), | |
1154 | le16_to_cpu(priv->staging_rxon.channel), | |
0795af57 | 1155 | print_mac(mac, priv->staging_rxon.bssid_addr)); |
b481de9c ZY |
1156 | |
1157 | /* Apply the new configuration */ | |
bb8c093b CH |
1158 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON, |
1159 | sizeof(struct iwl3945_rxon_cmd), &priv->staging_rxon); | |
b481de9c ZY |
1160 | if (rc) { |
1161 | IWL_ERROR("Error setting new configuration (%d).\n", rc); | |
1162 | return rc; | |
1163 | } | |
1164 | ||
1165 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
1166 | ||
bb8c093b | 1167 | iwl3945_clear_stations_table(priv); |
556f8db7 | 1168 | |
b481de9c ZY |
1169 | /* If we issue a new RXON command which required a tune then we must |
1170 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
bb8c093b | 1171 | rc = iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
1172 | if (rc) { |
1173 | IWL_ERROR("Error setting Tx power (%d).\n", rc); | |
1174 | return rc; | |
1175 | } | |
1176 | ||
1177 | /* Add the broadcast address so we can send broadcast frames */ | |
bb8c093b | 1178 | if (iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0) == |
b481de9c ZY |
1179 | IWL_INVALID_STATION) { |
1180 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); | |
1181 | return -EIO; | |
1182 | } | |
1183 | ||
1184 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
1185 | * add the IWL_AP_ID to the station rate table */ | |
bb8c093b | 1186 | if (iwl3945_is_associated(priv) && |
b481de9c | 1187 | (priv->iw_mode == IEEE80211_IF_TYPE_STA)) |
bb8c093b | 1188 | if (iwl3945_add_station(priv, priv->active_rxon.bssid_addr, 1, 0) |
b481de9c ZY |
1189 | == IWL_INVALID_STATION) { |
1190 | IWL_ERROR("Error adding AP address for transmit.\n"); | |
1191 | return -EIO; | |
1192 | } | |
1193 | ||
8318d78a | 1194 | /* Init the hardware's rate fallback order based on the band */ |
b481de9c ZY |
1195 | rc = iwl3945_init_hw_rate_table(priv); |
1196 | if (rc) { | |
1197 | IWL_ERROR("Error setting HW rate table: %02X\n", rc); | |
1198 | return -EIO; | |
1199 | } | |
1200 | ||
1201 | return 0; | |
1202 | } | |
1203 | ||
bb8c093b | 1204 | static int iwl3945_send_bt_config(struct iwl3945_priv *priv) |
b481de9c | 1205 | { |
bb8c093b | 1206 | struct iwl3945_bt_cmd bt_cmd = { |
b481de9c ZY |
1207 | .flags = 3, |
1208 | .lead_time = 0xAA, | |
1209 | .max_kill = 1, | |
1210 | .kill_ack_mask = 0, | |
1211 | .kill_cts_mask = 0, | |
1212 | }; | |
1213 | ||
bb8c093b CH |
1214 | return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
1215 | sizeof(struct iwl3945_bt_cmd), &bt_cmd); | |
b481de9c ZY |
1216 | } |
1217 | ||
bb8c093b | 1218 | static int iwl3945_send_scan_abort(struct iwl3945_priv *priv) |
b481de9c ZY |
1219 | { |
1220 | int rc = 0; | |
bb8c093b CH |
1221 | struct iwl3945_rx_packet *res; |
1222 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
1223 | .id = REPLY_SCAN_ABORT_CMD, |
1224 | .meta.flags = CMD_WANT_SKB, | |
1225 | }; | |
1226 | ||
1227 | /* If there isn't a scan actively going on in the hardware | |
1228 | * then we are in between scan bands and not actually | |
1229 | * actively scanning, so don't send the abort command */ | |
1230 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1231 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1232 | return 0; | |
1233 | } | |
1234 | ||
bb8c093b | 1235 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1236 | if (rc) { |
1237 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1238 | return rc; | |
1239 | } | |
1240 | ||
bb8c093b | 1241 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1242 | if (res->u.status != CAN_ABORT_STATUS) { |
1243 | /* The scan abort will return 1 for success or | |
1244 | * 2 for "failure". A failure condition can be | |
1245 | * due to simply not being in an active scan which | |
1246 | * can occur if we send the scan abort before we | |
1247 | * the microcode has notified us that a scan is | |
1248 | * completed. */ | |
1249 | IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); | |
1250 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1251 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
1252 | } | |
1253 | ||
1254 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1255 | ||
1256 | return rc; | |
1257 | } | |
1258 | ||
bb8c093b CH |
1259 | static int iwl3945_card_state_sync_callback(struct iwl3945_priv *priv, |
1260 | struct iwl3945_cmd *cmd, | |
b481de9c ZY |
1261 | struct sk_buff *skb) |
1262 | { | |
1263 | return 1; | |
1264 | } | |
1265 | ||
1266 | /* | |
1267 | * CARD_STATE_CMD | |
1268 | * | |
9fbab516 | 1269 | * Use: Sets the device's internal card state to enable, disable, or halt |
b481de9c ZY |
1270 | * |
1271 | * When in the 'enable' state the card operates as normal. | |
1272 | * When in the 'disable' state, the card enters into a low power mode. | |
1273 | * When in the 'halt' state, the card is shut down and must be fully | |
1274 | * restarted to come back on. | |
1275 | */ | |
bb8c093b | 1276 | static int iwl3945_send_card_state(struct iwl3945_priv *priv, u32 flags, u8 meta_flag) |
b481de9c | 1277 | { |
bb8c093b | 1278 | struct iwl3945_host_cmd cmd = { |
b481de9c ZY |
1279 | .id = REPLY_CARD_STATE_CMD, |
1280 | .len = sizeof(u32), | |
1281 | .data = &flags, | |
1282 | .meta.flags = meta_flag, | |
1283 | }; | |
1284 | ||
1285 | if (meta_flag & CMD_ASYNC) | |
bb8c093b | 1286 | cmd.meta.u.callback = iwl3945_card_state_sync_callback; |
b481de9c | 1287 | |
bb8c093b | 1288 | return iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1289 | } |
1290 | ||
bb8c093b CH |
1291 | static int iwl3945_add_sta_sync_callback(struct iwl3945_priv *priv, |
1292 | struct iwl3945_cmd *cmd, struct sk_buff *skb) | |
b481de9c | 1293 | { |
bb8c093b | 1294 | struct iwl3945_rx_packet *res = NULL; |
b481de9c ZY |
1295 | |
1296 | if (!skb) { | |
1297 | IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n"); | |
1298 | return 1; | |
1299 | } | |
1300 | ||
bb8c093b | 1301 | res = (struct iwl3945_rx_packet *)skb->data; |
b481de9c ZY |
1302 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1303 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1304 | res->hdr.flags); | |
1305 | return 1; | |
1306 | } | |
1307 | ||
1308 | switch (res->u.add_sta.status) { | |
1309 | case ADD_STA_SUCCESS_MSK: | |
1310 | break; | |
1311 | default: | |
1312 | break; | |
1313 | } | |
1314 | ||
1315 | /* We didn't cache the SKB; let the caller free it */ | |
1316 | return 1; | |
1317 | } | |
1318 | ||
bb8c093b CH |
1319 | int iwl3945_send_add_station(struct iwl3945_priv *priv, |
1320 | struct iwl3945_addsta_cmd *sta, u8 flags) | |
b481de9c | 1321 | { |
bb8c093b | 1322 | struct iwl3945_rx_packet *res = NULL; |
b481de9c | 1323 | int rc = 0; |
bb8c093b | 1324 | struct iwl3945_host_cmd cmd = { |
b481de9c | 1325 | .id = REPLY_ADD_STA, |
bb8c093b | 1326 | .len = sizeof(struct iwl3945_addsta_cmd), |
b481de9c ZY |
1327 | .meta.flags = flags, |
1328 | .data = sta, | |
1329 | }; | |
1330 | ||
1331 | if (flags & CMD_ASYNC) | |
bb8c093b | 1332 | cmd.meta.u.callback = iwl3945_add_sta_sync_callback; |
b481de9c ZY |
1333 | else |
1334 | cmd.meta.flags |= CMD_WANT_SKB; | |
1335 | ||
bb8c093b | 1336 | rc = iwl3945_send_cmd(priv, &cmd); |
b481de9c ZY |
1337 | |
1338 | if (rc || (flags & CMD_ASYNC)) | |
1339 | return rc; | |
1340 | ||
bb8c093b | 1341 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1342 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1343 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
1344 | res->hdr.flags); | |
1345 | rc = -EIO; | |
1346 | } | |
1347 | ||
1348 | if (rc == 0) { | |
1349 | switch (res->u.add_sta.status) { | |
1350 | case ADD_STA_SUCCESS_MSK: | |
1351 | IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n"); | |
1352 | break; | |
1353 | default: | |
1354 | rc = -EIO; | |
1355 | IWL_WARNING("REPLY_ADD_STA failed\n"); | |
1356 | break; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | priv->alloc_rxb_skb--; | |
1361 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1362 | ||
1363 | return rc; | |
1364 | } | |
1365 | ||
bb8c093b | 1366 | static int iwl3945_update_sta_key_info(struct iwl3945_priv *priv, |
b481de9c ZY |
1367 | struct ieee80211_key_conf *keyconf, |
1368 | u8 sta_id) | |
1369 | { | |
1370 | unsigned long flags; | |
1371 | __le16 key_flags = 0; | |
1372 | ||
1373 | switch (keyconf->alg) { | |
1374 | case ALG_CCMP: | |
1375 | key_flags |= STA_KEY_FLG_CCMP; | |
1376 | key_flags |= cpu_to_le16( | |
1377 | keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
1378 | key_flags &= ~STA_KEY_FLG_INVALID; | |
1379 | break; | |
1380 | case ALG_TKIP: | |
1381 | case ALG_WEP: | |
b481de9c ZY |
1382 | default: |
1383 | return -EINVAL; | |
1384 | } | |
1385 | spin_lock_irqsave(&priv->sta_lock, flags); | |
1386 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; | |
1387 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
1388 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, | |
1389 | keyconf->keylen); | |
1390 | ||
1391 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, | |
1392 | keyconf->keylen); | |
1393 | priv->stations[sta_id].sta.key.key_flags = key_flags; | |
1394 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1395 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1396 | ||
1397 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1398 | ||
1399 | IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n"); | |
bb8c093b | 1400 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1401 | return 0; |
1402 | } | |
1403 | ||
bb8c093b | 1404 | static int iwl3945_clear_sta_key_info(struct iwl3945_priv *priv, u8 sta_id) |
b481de9c ZY |
1405 | { |
1406 | unsigned long flags; | |
1407 | ||
1408 | spin_lock_irqsave(&priv->sta_lock, flags); | |
bb8c093b CH |
1409 | memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key)); |
1410 | memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl3945_keyinfo)); | |
b481de9c ZY |
1411 | priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
1412 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1413 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1414 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
1415 | ||
1416 | IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n"); | |
bb8c093b | 1417 | iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
1418 | return 0; |
1419 | } | |
1420 | ||
bb8c093b | 1421 | static void iwl3945_clear_free_frames(struct iwl3945_priv *priv) |
b481de9c ZY |
1422 | { |
1423 | struct list_head *element; | |
1424 | ||
1425 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
1426 | priv->frames_count); | |
1427 | ||
1428 | while (!list_empty(&priv->free_frames)) { | |
1429 | element = priv->free_frames.next; | |
1430 | list_del(element); | |
bb8c093b | 1431 | kfree(list_entry(element, struct iwl3945_frame, list)); |
b481de9c ZY |
1432 | priv->frames_count--; |
1433 | } | |
1434 | ||
1435 | if (priv->frames_count) { | |
1436 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
1437 | priv->frames_count); | |
1438 | priv->frames_count = 0; | |
1439 | } | |
1440 | } | |
1441 | ||
bb8c093b | 1442 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl3945_priv *priv) |
b481de9c | 1443 | { |
bb8c093b | 1444 | struct iwl3945_frame *frame; |
b481de9c ZY |
1445 | struct list_head *element; |
1446 | if (list_empty(&priv->free_frames)) { | |
1447 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
1448 | if (!frame) { | |
1449 | IWL_ERROR("Could not allocate frame!\n"); | |
1450 | return NULL; | |
1451 | } | |
1452 | ||
1453 | priv->frames_count++; | |
1454 | return frame; | |
1455 | } | |
1456 | ||
1457 | element = priv->free_frames.next; | |
1458 | list_del(element); | |
bb8c093b | 1459 | return list_entry(element, struct iwl3945_frame, list); |
b481de9c ZY |
1460 | } |
1461 | ||
bb8c093b | 1462 | static void iwl3945_free_frame(struct iwl3945_priv *priv, struct iwl3945_frame *frame) |
b481de9c ZY |
1463 | { |
1464 | memset(frame, 0, sizeof(*frame)); | |
1465 | list_add(&frame->list, &priv->free_frames); | |
1466 | } | |
1467 | ||
bb8c093b | 1468 | unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv, |
b481de9c ZY |
1469 | struct ieee80211_hdr *hdr, |
1470 | const u8 *dest, int left) | |
1471 | { | |
1472 | ||
bb8c093b | 1473 | if (!iwl3945_is_associated(priv) || !priv->ibss_beacon || |
b481de9c ZY |
1474 | ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) && |
1475 | (priv->iw_mode != IEEE80211_IF_TYPE_AP))) | |
1476 | return 0; | |
1477 | ||
1478 | if (priv->ibss_beacon->len > left) | |
1479 | return 0; | |
1480 | ||
1481 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
1482 | ||
1483 | return priv->ibss_beacon->len; | |
1484 | } | |
1485 | ||
bb8c093b | 1486 | static u8 iwl3945_rate_get_lowest_plcp(int rate_mask) |
b481de9c ZY |
1487 | { |
1488 | u8 i; | |
1489 | ||
1490 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; | |
bb8c093b | 1491 | i = iwl3945_rates[i].next_ieee) { |
b481de9c | 1492 | if (rate_mask & (1 << i)) |
bb8c093b | 1493 | return iwl3945_rates[i].plcp; |
b481de9c ZY |
1494 | } |
1495 | ||
1496 | return IWL_RATE_INVALID; | |
1497 | } | |
1498 | ||
bb8c093b | 1499 | static int iwl3945_send_beacon_cmd(struct iwl3945_priv *priv) |
b481de9c | 1500 | { |
bb8c093b | 1501 | struct iwl3945_frame *frame; |
b481de9c ZY |
1502 | unsigned int frame_size; |
1503 | int rc; | |
1504 | u8 rate; | |
1505 | ||
bb8c093b | 1506 | frame = iwl3945_get_free_frame(priv); |
b481de9c ZY |
1507 | |
1508 | if (!frame) { | |
1509 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
1510 | "command.\n"); | |
1511 | return -ENOMEM; | |
1512 | } | |
1513 | ||
1514 | if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) { | |
bb8c093b | 1515 | rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic & |
b481de9c ZY |
1516 | 0xFF0); |
1517 | if (rate == IWL_INVALID_RATE) | |
1518 | rate = IWL_RATE_6M_PLCP; | |
1519 | } else { | |
bb8c093b | 1520 | rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic & 0xF); |
b481de9c ZY |
1521 | if (rate == IWL_INVALID_RATE) |
1522 | rate = IWL_RATE_1M_PLCP; | |
1523 | } | |
1524 | ||
bb8c093b | 1525 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 1526 | |
bb8c093b | 1527 | rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
1528 | &frame->u.cmd[0]); |
1529 | ||
bb8c093b | 1530 | iwl3945_free_frame(priv, frame); |
b481de9c ZY |
1531 | |
1532 | return rc; | |
1533 | } | |
1534 | ||
1535 | /****************************************************************************** | |
1536 | * | |
1537 | * EEPROM related functions | |
1538 | * | |
1539 | ******************************************************************************/ | |
1540 | ||
bb8c093b | 1541 | static void get_eeprom_mac(struct iwl3945_priv *priv, u8 *mac) |
b481de9c ZY |
1542 | { |
1543 | memcpy(mac, priv->eeprom.mac_address, 6); | |
1544 | } | |
1545 | ||
74a3a250 RC |
1546 | /* |
1547 | * Clear the OWNER_MSK, to establish driver (instead of uCode running on | |
1548 | * embedded controller) as EEPROM reader; each read is a series of pulses | |
1549 | * to/from the EEPROM chip, not a single event, so even reads could conflict | |
1550 | * if they weren't arbitrated by some ownership mechanism. Here, the driver | |
1551 | * simply claims ownership, which should be safe when this function is called | |
1552 | * (i.e. before loading uCode!). | |
1553 | */ | |
1554 | static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv) | |
1555 | { | |
1556 | _iwl3945_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); | |
1557 | return 0; | |
1558 | } | |
1559 | ||
b481de9c | 1560 | /** |
bb8c093b | 1561 | * iwl3945_eeprom_init - read EEPROM contents |
b481de9c | 1562 | * |
6440adb5 | 1563 | * Load the EEPROM contents from adapter into priv->eeprom |
b481de9c ZY |
1564 | * |
1565 | * NOTE: This routine uses the non-debug IO access functions. | |
1566 | */ | |
bb8c093b | 1567 | int iwl3945_eeprom_init(struct iwl3945_priv *priv) |
b481de9c | 1568 | { |
58ff6d4d | 1569 | u16 *e = (u16 *)&priv->eeprom; |
bb8c093b | 1570 | u32 gp = iwl3945_read32(priv, CSR_EEPROM_GP); |
b481de9c ZY |
1571 | u32 r; |
1572 | int sz = sizeof(priv->eeprom); | |
1573 | int rc; | |
1574 | int i; | |
1575 | u16 addr; | |
1576 | ||
1577 | /* The EEPROM structure has several padding buffers within it | |
1578 | * and when adding new EEPROM maps is subject to programmer errors | |
1579 | * which may be very difficult to identify without explicitly | |
1580 | * checking the resulting size of the eeprom map. */ | |
1581 | BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE); | |
1582 | ||
1583 | if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) { | |
1584 | IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp); | |
1585 | return -ENOENT; | |
1586 | } | |
1587 | ||
6440adb5 | 1588 | /* Make sure driver (instead of uCode) is allowed to read EEPROM */ |
bb8c093b | 1589 | rc = iwl3945_eeprom_acquire_semaphore(priv); |
b481de9c | 1590 | if (rc < 0) { |
91e17473 | 1591 | IWL_ERROR("Failed to acquire EEPROM semaphore.\n"); |
b481de9c ZY |
1592 | return -ENOENT; |
1593 | } | |
1594 | ||
1595 | /* eeprom is an array of 16bit values */ | |
1596 | for (addr = 0; addr < sz; addr += sizeof(u16)) { | |
bb8c093b CH |
1597 | _iwl3945_write32(priv, CSR_EEPROM_REG, addr << 1); |
1598 | _iwl3945_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD); | |
b481de9c ZY |
1599 | |
1600 | for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT; | |
1601 | i += IWL_EEPROM_ACCESS_DELAY) { | |
bb8c093b | 1602 | r = _iwl3945_read_direct32(priv, CSR_EEPROM_REG); |
b481de9c ZY |
1603 | if (r & CSR_EEPROM_REG_READ_VALID_MSK) |
1604 | break; | |
1605 | udelay(IWL_EEPROM_ACCESS_DELAY); | |
1606 | } | |
1607 | ||
1608 | if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) { | |
1609 | IWL_ERROR("Time out reading EEPROM[%d]", addr); | |
1610 | return -ETIMEDOUT; | |
1611 | } | |
58ff6d4d | 1612 | e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16)); |
b481de9c ZY |
1613 | } |
1614 | ||
1615 | return 0; | |
1616 | } | |
1617 | ||
bb8c093b | 1618 | static void iwl3945_unset_hw_setting(struct iwl3945_priv *priv) |
b481de9c ZY |
1619 | { |
1620 | if (priv->hw_setting.shared_virt) | |
1621 | pci_free_consistent(priv->pci_dev, | |
bb8c093b | 1622 | sizeof(struct iwl3945_shared), |
b481de9c ZY |
1623 | priv->hw_setting.shared_virt, |
1624 | priv->hw_setting.shared_phys); | |
1625 | } | |
1626 | ||
1627 | /** | |
bb8c093b | 1628 | * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
1629 | * |
1630 | * return : set the bit for each supported rate insert in ie | |
1631 | */ | |
bb8c093b | 1632 | static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 1633 | u16 basic_rate, int *left) |
b481de9c ZY |
1634 | { |
1635 | u16 ret_rates = 0, bit; | |
1636 | int i; | |
c7c46676 TW |
1637 | u8 *cnt = ie; |
1638 | u8 *rates = ie + 1; | |
b481de9c ZY |
1639 | |
1640 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
1641 | if (bit & supported_rate) { | |
1642 | ret_rates |= bit; | |
bb8c093b | 1643 | rates[*cnt] = iwl3945_rates[i].ieee | |
c7c46676 TW |
1644 | ((bit & basic_rate) ? 0x80 : 0x00); |
1645 | (*cnt)++; | |
1646 | (*left)--; | |
1647 | if ((*left <= 0) || | |
1648 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
1649 | break; |
1650 | } | |
1651 | } | |
1652 | ||
1653 | return ret_rates; | |
1654 | } | |
1655 | ||
1656 | /** | |
bb8c093b | 1657 | * iwl3945_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 1658 | */ |
bb8c093b | 1659 | static u16 iwl3945_fill_probe_req(struct iwl3945_priv *priv, |
b481de9c ZY |
1660 | struct ieee80211_mgmt *frame, |
1661 | int left, int is_direct) | |
1662 | { | |
1663 | int len = 0; | |
1664 | u8 *pos = NULL; | |
c7c46676 | 1665 | u16 active_rates, ret_rates, cck_rates; |
b481de9c ZY |
1666 | |
1667 | /* Make sure there is enough space for the probe request, | |
1668 | * two mandatory IEs and the data */ | |
1669 | left -= 24; | |
1670 | if (left < 0) | |
1671 | return 0; | |
1672 | len += 24; | |
1673 | ||
1674 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
bb8c093b | 1675 | memcpy(frame->da, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c | 1676 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
bb8c093b | 1677 | memcpy(frame->bssid, iwl3945_broadcast_addr, ETH_ALEN); |
b481de9c ZY |
1678 | frame->seq_ctrl = 0; |
1679 | ||
1680 | /* fill in our indirect SSID IE */ | |
1681 | /* ...next IE... */ | |
1682 | ||
1683 | left -= 2; | |
1684 | if (left < 0) | |
1685 | return 0; | |
1686 | len += 2; | |
1687 | pos = &(frame->u.probe_req.variable[0]); | |
1688 | *pos++ = WLAN_EID_SSID; | |
1689 | *pos++ = 0; | |
1690 | ||
1691 | /* fill in our direct SSID IE... */ | |
1692 | if (is_direct) { | |
1693 | /* ...next IE... */ | |
1694 | left -= 2 + priv->essid_len; | |
1695 | if (left < 0) | |
1696 | return 0; | |
1697 | /* ... fill it in... */ | |
1698 | *pos++ = WLAN_EID_SSID; | |
1699 | *pos++ = priv->essid_len; | |
1700 | memcpy(pos, priv->essid, priv->essid_len); | |
1701 | pos += priv->essid_len; | |
1702 | len += 2 + priv->essid_len; | |
1703 | } | |
1704 | ||
1705 | /* fill in supported rate */ | |
1706 | /* ...next IE... */ | |
1707 | left -= 2; | |
1708 | if (left < 0) | |
1709 | return 0; | |
c7c46676 | 1710 | |
b481de9c ZY |
1711 | /* ... fill it in... */ |
1712 | *pos++ = WLAN_EID_SUPP_RATES; | |
1713 | *pos = 0; | |
c7c46676 TW |
1714 | |
1715 | priv->active_rate = priv->rates_mask; | |
1716 | active_rates = priv->active_rate; | |
b481de9c ZY |
1717 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; |
1718 | ||
c7c46676 | 1719 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 1720 | ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates, |
c7c46676 TW |
1721 | priv->active_rate_basic, &left); |
1722 | active_rates &= ~ret_rates; | |
1723 | ||
bb8c093b | 1724 | ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 TW |
1725 | priv->active_rate_basic, &left); |
1726 | active_rates &= ~ret_rates; | |
1727 | ||
b481de9c ZY |
1728 | len += 2 + *pos; |
1729 | pos += (*pos) + 1; | |
c7c46676 | 1730 | if (active_rates == 0) |
b481de9c ZY |
1731 | goto fill_end; |
1732 | ||
1733 | /* fill in supported extended rate */ | |
1734 | /* ...next IE... */ | |
1735 | left -= 2; | |
1736 | if (left < 0) | |
1737 | return 0; | |
1738 | /* ... fill it in... */ | |
1739 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
1740 | *pos = 0; | |
bb8c093b | 1741 | iwl3945_supported_rate_to_ie(pos, active_rates, |
c7c46676 | 1742 | priv->active_rate_basic, &left); |
b481de9c ZY |
1743 | if (*pos > 0) |
1744 | len += 2 + *pos; | |
1745 | ||
1746 | fill_end: | |
1747 | return (u16)len; | |
1748 | } | |
1749 | ||
1750 | /* | |
1751 | * QoS support | |
1752 | */ | |
bb8c093b CH |
1753 | static int iwl3945_send_qos_params_command(struct iwl3945_priv *priv, |
1754 | struct iwl3945_qosparam_cmd *qos) | |
b481de9c ZY |
1755 | { |
1756 | ||
bb8c093b CH |
1757 | return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
1758 | sizeof(struct iwl3945_qosparam_cmd), qos); | |
b481de9c ZY |
1759 | } |
1760 | ||
bb8c093b | 1761 | static void iwl3945_reset_qos(struct iwl3945_priv *priv) |
b481de9c ZY |
1762 | { |
1763 | u16 cw_min = 15; | |
1764 | u16 cw_max = 1023; | |
1765 | u8 aifs = 2; | |
1766 | u8 is_legacy = 0; | |
1767 | unsigned long flags; | |
1768 | int i; | |
1769 | ||
1770 | spin_lock_irqsave(&priv->lock, flags); | |
1771 | priv->qos_data.qos_active = 0; | |
1772 | ||
1773 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) { | |
1774 | if (priv->qos_data.qos_enable) | |
1775 | priv->qos_data.qos_active = 1; | |
1776 | if (!(priv->active_rate & 0xfff0)) { | |
1777 | cw_min = 31; | |
1778 | is_legacy = 1; | |
1779 | } | |
1780 | } else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
1781 | if (priv->qos_data.qos_enable) | |
1782 | priv->qos_data.qos_active = 1; | |
1783 | } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) { | |
1784 | cw_min = 31; | |
1785 | is_legacy = 1; | |
1786 | } | |
1787 | ||
1788 | if (priv->qos_data.qos_active) | |
1789 | aifs = 3; | |
1790 | ||
1791 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); | |
1792 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); | |
1793 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; | |
1794 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; | |
1795 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; | |
1796 | ||
1797 | if (priv->qos_data.qos_active) { | |
1798 | i = 1; | |
1799 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); | |
1800 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); | |
1801 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; | |
1802 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1803 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1804 | ||
1805 | i = 2; | |
1806 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1807 | cpu_to_le16((cw_min + 1) / 2 - 1); | |
1808 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1809 | cpu_to_le16(cw_max); | |
1810 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1811 | if (is_legacy) | |
1812 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1813 | cpu_to_le16(6016); | |
1814 | else | |
1815 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1816 | cpu_to_le16(3008); | |
1817 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1818 | ||
1819 | i = 3; | |
1820 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1821 | cpu_to_le16((cw_min + 1) / 4 - 1); | |
1822 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1823 | cpu_to_le16((cw_max + 1) / 2 - 1); | |
1824 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
1825 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1826 | if (is_legacy) | |
1827 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1828 | cpu_to_le16(3264); | |
1829 | else | |
1830 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
1831 | cpu_to_le16(1504); | |
1832 | } else { | |
1833 | for (i = 1; i < 4; i++) { | |
1834 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
1835 | cpu_to_le16(cw_min); | |
1836 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
1837 | cpu_to_le16(cw_max); | |
1838 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; | |
1839 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
1840 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
1841 | } | |
1842 | } | |
1843 | IWL_DEBUG_QOS("set QoS to default \n"); | |
1844 | ||
1845 | spin_unlock_irqrestore(&priv->lock, flags); | |
1846 | } | |
1847 | ||
bb8c093b | 1848 | static void iwl3945_activate_qos(struct iwl3945_priv *priv, u8 force) |
b481de9c ZY |
1849 | { |
1850 | unsigned long flags; | |
1851 | ||
b481de9c ZY |
1852 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
1853 | return; | |
1854 | ||
1855 | if (!priv->qos_data.qos_enable) | |
1856 | return; | |
1857 | ||
1858 | spin_lock_irqsave(&priv->lock, flags); | |
1859 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
1860 | ||
1861 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
1862 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
1863 | priv->qos_data.def_qos_parm.qos_flags |= | |
1864 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
1865 | ||
1866 | if (priv->qos_data.qos_active) | |
1867 | priv->qos_data.def_qos_parm.qos_flags |= | |
1868 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
1869 | ||
1870 | spin_unlock_irqrestore(&priv->lock, flags); | |
1871 | ||
bb8c093b | 1872 | if (force || iwl3945_is_associated(priv)) { |
b481de9c ZY |
1873 | IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n", |
1874 | priv->qos_data.qos_active); | |
1875 | ||
bb8c093b | 1876 | iwl3945_send_qos_params_command(priv, |
b481de9c ZY |
1877 | &(priv->qos_data.def_qos_parm)); |
1878 | } | |
1879 | } | |
1880 | ||
b481de9c ZY |
1881 | /* |
1882 | * Power management (not Tx power!) functions | |
1883 | */ | |
1884 | #define MSEC_TO_USEC 1024 | |
1885 | ||
1886 | #define NOSLP __constant_cpu_to_le32(0) | |
1887 | #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK | |
1888 | #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC) | |
1889 | #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \ | |
1890 | __constant_cpu_to_le32(X1), \ | |
1891 | __constant_cpu_to_le32(X2), \ | |
1892 | __constant_cpu_to_le32(X3), \ | |
1893 | __constant_cpu_to_le32(X4)} | |
1894 | ||
1895 | ||
1896 | /* default power management (not Tx power) table values */ | |
1897 | /* for tim 0-10 */ | |
bb8c093b | 1898 | static struct iwl3945_power_vec_entry range_0[IWL_POWER_AC] = { |
b481de9c ZY |
1899 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1900 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0}, | |
1901 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0}, | |
1902 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0}, | |
1903 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1}, | |
1904 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1} | |
1905 | }; | |
1906 | ||
1907 | /* for tim > 10 */ | |
bb8c093b | 1908 | static struct iwl3945_power_vec_entry range_1[IWL_POWER_AC] = { |
b481de9c ZY |
1909 | {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0}, |
1910 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), | |
1911 | SLP_VEC(1, 2, 3, 4, 0xFF)}, 0}, | |
1912 | {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), | |
1913 | SLP_VEC(2, 4, 6, 7, 0xFF)}, 0}, | |
1914 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), | |
1915 | SLP_VEC(2, 6, 9, 9, 0xFF)}, 0}, | |
1916 | {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0}, | |
1917 | {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), | |
1918 | SLP_VEC(4, 7, 10, 10, 0xFF)}, 0} | |
1919 | }; | |
1920 | ||
bb8c093b | 1921 | int iwl3945_power_init_handle(struct iwl3945_priv *priv) |
b481de9c ZY |
1922 | { |
1923 | int rc = 0, i; | |
bb8c093b CH |
1924 | struct iwl3945_power_mgr *pow_data; |
1925 | int size = sizeof(struct iwl3945_power_vec_entry) * IWL_POWER_AC; | |
b481de9c ZY |
1926 | u16 pci_pm; |
1927 | ||
1928 | IWL_DEBUG_POWER("Initialize power \n"); | |
1929 | ||
1930 | pow_data = &(priv->power_data); | |
1931 | ||
1932 | memset(pow_data, 0, sizeof(*pow_data)); | |
1933 | ||
1934 | pow_data->active_index = IWL_POWER_RANGE_0; | |
1935 | pow_data->dtim_val = 0xffff; | |
1936 | ||
1937 | memcpy(&pow_data->pwr_range_0[0], &range_0[0], size); | |
1938 | memcpy(&pow_data->pwr_range_1[0], &range_1[0], size); | |
1939 | ||
1940 | rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm); | |
1941 | if (rc != 0) | |
1942 | return 0; | |
1943 | else { | |
bb8c093b | 1944 | struct iwl3945_powertable_cmd *cmd; |
b481de9c ZY |
1945 | |
1946 | IWL_DEBUG_POWER("adjust power command flags\n"); | |
1947 | ||
1948 | for (i = 0; i < IWL_POWER_AC; i++) { | |
1949 | cmd = &pow_data->pwr_range_0[i].cmd; | |
1950 | ||
1951 | if (pci_pm & 0x1) | |
1952 | cmd->flags &= ~IWL_POWER_PCI_PM_MSK; | |
1953 | else | |
1954 | cmd->flags |= IWL_POWER_PCI_PM_MSK; | |
1955 | } | |
1956 | } | |
1957 | return rc; | |
1958 | } | |
1959 | ||
bb8c093b CH |
1960 | static int iwl3945_update_power_cmd(struct iwl3945_priv *priv, |
1961 | struct iwl3945_powertable_cmd *cmd, u32 mode) | |
b481de9c ZY |
1962 | { |
1963 | int rc = 0, i; | |
1964 | u8 skip; | |
1965 | u32 max_sleep = 0; | |
bb8c093b | 1966 | struct iwl3945_power_vec_entry *range; |
b481de9c | 1967 | u8 period = 0; |
bb8c093b | 1968 | struct iwl3945_power_mgr *pow_data; |
b481de9c ZY |
1969 | |
1970 | if (mode > IWL_POWER_INDEX_5) { | |
1971 | IWL_DEBUG_POWER("Error invalid power mode \n"); | |
1972 | return -1; | |
1973 | } | |
1974 | pow_data = &(priv->power_data); | |
1975 | ||
1976 | if (pow_data->active_index == IWL_POWER_RANGE_0) | |
1977 | range = &pow_data->pwr_range_0[0]; | |
1978 | else | |
1979 | range = &pow_data->pwr_range_1[1]; | |
1980 | ||
bb8c093b | 1981 | memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd)); |
b481de9c ZY |
1982 | |
1983 | #ifdef IWL_MAC80211_DISABLE | |
1984 | if (priv->assoc_network != NULL) { | |
1985 | unsigned long flags; | |
1986 | ||
1987 | period = priv->assoc_network->tim.tim_period; | |
1988 | } | |
1989 | #endif /*IWL_MAC80211_DISABLE */ | |
1990 | skip = range[mode].no_dtim; | |
1991 | ||
1992 | if (period == 0) { | |
1993 | period = 1; | |
1994 | skip = 0; | |
1995 | } | |
1996 | ||
1997 | if (skip == 0) { | |
1998 | max_sleep = period; | |
1999 | cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
2000 | } else { | |
2001 | __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]; | |
2002 | max_sleep = (le32_to_cpu(slp_itrvl) / period) * period; | |
2003 | cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK; | |
2004 | } | |
2005 | ||
2006 | for (i = 0; i < IWL_POWER_VEC_SIZE; i++) { | |
2007 | if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep) | |
2008 | cmd->sleep_interval[i] = cpu_to_le32(max_sleep); | |
2009 | } | |
2010 | ||
2011 | IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags); | |
2012 | IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout)); | |
2013 | IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout)); | |
2014 | IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n", | |
2015 | le32_to_cpu(cmd->sleep_interval[0]), | |
2016 | le32_to_cpu(cmd->sleep_interval[1]), | |
2017 | le32_to_cpu(cmd->sleep_interval[2]), | |
2018 | le32_to_cpu(cmd->sleep_interval[3]), | |
2019 | le32_to_cpu(cmd->sleep_interval[4])); | |
2020 | ||
2021 | return rc; | |
2022 | } | |
2023 | ||
bb8c093b | 2024 | static int iwl3945_send_power_mode(struct iwl3945_priv *priv, u32 mode) |
b481de9c | 2025 | { |
9a62f73b | 2026 | u32 uninitialized_var(final_mode); |
b481de9c | 2027 | int rc; |
bb8c093b | 2028 | struct iwl3945_powertable_cmd cmd; |
b481de9c ZY |
2029 | |
2030 | /* If on battery, set to 3, | |
01ebd063 | 2031 | * if plugged into AC power, set to CAM ("continuously aware mode"), |
b481de9c ZY |
2032 | * else user level */ |
2033 | switch (mode) { | |
2034 | case IWL_POWER_BATTERY: | |
2035 | final_mode = IWL_POWER_INDEX_3; | |
2036 | break; | |
2037 | case IWL_POWER_AC: | |
2038 | final_mode = IWL_POWER_MODE_CAM; | |
2039 | break; | |
2040 | default: | |
2041 | final_mode = mode; | |
2042 | break; | |
2043 | } | |
2044 | ||
bb8c093b | 2045 | iwl3945_update_power_cmd(priv, &cmd, final_mode); |
b481de9c | 2046 | |
bb8c093b | 2047 | rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd); |
b481de9c ZY |
2048 | |
2049 | if (final_mode == IWL_POWER_MODE_CAM) | |
2050 | clear_bit(STATUS_POWER_PMI, &priv->status); | |
2051 | else | |
2052 | set_bit(STATUS_POWER_PMI, &priv->status); | |
2053 | ||
2054 | return rc; | |
2055 | } | |
2056 | ||
bb8c093b | 2057 | int iwl3945_is_network_packet(struct iwl3945_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
2058 | { |
2059 | /* Filter incoming packets to determine if they are targeted toward | |
2060 | * this network, discarding packets coming from ourselves */ | |
2061 | switch (priv->iw_mode) { | |
2062 | case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */ | |
2063 | /* packets from our adapter are dropped (echo) */ | |
2064 | if (!compare_ether_addr(header->addr2, priv->mac_addr)) | |
2065 | return 0; | |
2066 | /* {broad,multi}cast packets to our IBSS go through */ | |
2067 | if (is_multicast_ether_addr(header->addr1)) | |
2068 | return !compare_ether_addr(header->addr3, priv->bssid); | |
2069 | /* packets to our adapter go through */ | |
2070 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
2071 | case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */ | |
2072 | /* packets from our adapter are dropped (echo) */ | |
2073 | if (!compare_ether_addr(header->addr3, priv->mac_addr)) | |
2074 | return 0; | |
2075 | /* {broad,multi}cast packets to our BSS go through */ | |
2076 | if (is_multicast_ether_addr(header->addr1)) | |
2077 | return !compare_ether_addr(header->addr2, priv->bssid); | |
2078 | /* packets to our adapter go through */ | |
2079 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
2080 | } | |
2081 | ||
2082 | return 1; | |
2083 | } | |
2084 | ||
2085 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
2086 | ||
bb8c093b | 2087 | static const char *iwl3945_get_tx_fail_reason(u32 status) |
b481de9c ZY |
2088 | { |
2089 | switch (status & TX_STATUS_MSK) { | |
2090 | case TX_STATUS_SUCCESS: | |
2091 | return "SUCCESS"; | |
2092 | TX_STATUS_ENTRY(SHORT_LIMIT); | |
2093 | TX_STATUS_ENTRY(LONG_LIMIT); | |
2094 | TX_STATUS_ENTRY(FIFO_UNDERRUN); | |
2095 | TX_STATUS_ENTRY(MGMNT_ABORT); | |
2096 | TX_STATUS_ENTRY(NEXT_FRAG); | |
2097 | TX_STATUS_ENTRY(LIFE_EXPIRE); | |
2098 | TX_STATUS_ENTRY(DEST_PS); | |
2099 | TX_STATUS_ENTRY(ABORTED); | |
2100 | TX_STATUS_ENTRY(BT_RETRY); | |
2101 | TX_STATUS_ENTRY(STA_INVALID); | |
2102 | TX_STATUS_ENTRY(FRAG_DROPPED); | |
2103 | TX_STATUS_ENTRY(TID_DISABLE); | |
2104 | TX_STATUS_ENTRY(FRAME_FLUSHED); | |
2105 | TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); | |
2106 | TX_STATUS_ENTRY(TX_LOCKED); | |
2107 | TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); | |
2108 | } | |
2109 | ||
2110 | return "UNKNOWN"; | |
2111 | } | |
2112 | ||
2113 | /** | |
bb8c093b | 2114 | * iwl3945_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
2115 | * |
2116 | * NOTE: priv->mutex is not required before calling this function | |
2117 | */ | |
bb8c093b | 2118 | static int iwl3945_scan_cancel(struct iwl3945_priv *priv) |
b481de9c ZY |
2119 | { |
2120 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
2121 | clear_bit(STATUS_SCANNING, &priv->status); | |
2122 | return 0; | |
2123 | } | |
2124 | ||
2125 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
2126 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2127 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
2128 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
2129 | queue_work(priv->workqueue, &priv->abort_scan); | |
2130 | ||
2131 | } else | |
2132 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
2133 | ||
2134 | return test_bit(STATUS_SCANNING, &priv->status); | |
2135 | } | |
2136 | ||
2137 | return 0; | |
2138 | } | |
2139 | ||
2140 | /** | |
bb8c093b | 2141 | * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
2142 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
2143 | * | |
2144 | * NOTE: priv->mutex must be held before calling this function | |
2145 | */ | |
bb8c093b | 2146 | static int iwl3945_scan_cancel_timeout(struct iwl3945_priv *priv, unsigned long ms) |
b481de9c ZY |
2147 | { |
2148 | unsigned long now = jiffies; | |
2149 | int ret; | |
2150 | ||
bb8c093b | 2151 | ret = iwl3945_scan_cancel(priv); |
b481de9c ZY |
2152 | if (ret && ms) { |
2153 | mutex_unlock(&priv->mutex); | |
2154 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
2155 | test_bit(STATUS_SCANNING, &priv->status)) | |
2156 | msleep(1); | |
2157 | mutex_lock(&priv->mutex); | |
2158 | ||
2159 | return test_bit(STATUS_SCANNING, &priv->status); | |
2160 | } | |
2161 | ||
2162 | return ret; | |
2163 | } | |
2164 | ||
bb8c093b | 2165 | static void iwl3945_sequence_reset(struct iwl3945_priv *priv) |
b481de9c ZY |
2166 | { |
2167 | /* Reset ieee stats */ | |
2168 | ||
2169 | /* We don't reset the net_device_stats (ieee->stats) on | |
2170 | * re-association */ | |
2171 | ||
2172 | priv->last_seq_num = -1; | |
2173 | priv->last_frag_num = -1; | |
2174 | priv->last_packet_time = 0; | |
2175 | ||
bb8c093b | 2176 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
2177 | } |
2178 | ||
2179 | #define MAX_UCODE_BEACON_INTERVAL 1024 | |
2180 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
2181 | ||
bb8c093b | 2182 | static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
2183 | { |
2184 | u16 new_val = 0; | |
2185 | u16 beacon_factor = 0; | |
2186 | ||
2187 | beacon_factor = | |
2188 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
2189 | / MAX_UCODE_BEACON_INTERVAL; | |
2190 | new_val = beacon_val / beacon_factor; | |
2191 | ||
2192 | return cpu_to_le16(new_val); | |
2193 | } | |
2194 | ||
bb8c093b | 2195 | static void iwl3945_setup_rxon_timing(struct iwl3945_priv *priv) |
b481de9c ZY |
2196 | { |
2197 | u64 interval_tm_unit; | |
2198 | u64 tsf, result; | |
2199 | unsigned long flags; | |
2200 | struct ieee80211_conf *conf = NULL; | |
2201 | u16 beacon_int = 0; | |
2202 | ||
2203 | conf = ieee80211_get_hw_conf(priv->hw); | |
2204 | ||
2205 | spin_lock_irqsave(&priv->lock, flags); | |
2206 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1); | |
2207 | priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0); | |
2208 | ||
2209 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
2210 | ||
2211 | tsf = priv->timestamp1; | |
2212 | tsf = ((tsf << 32) | priv->timestamp0); | |
2213 | ||
2214 | beacon_int = priv->beacon_int; | |
2215 | spin_unlock_irqrestore(&priv->lock, flags); | |
2216 | ||
2217 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) { | |
2218 | if (beacon_int == 0) { | |
2219 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
2220 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
2221 | } else { | |
2222 | priv->rxon_timing.beacon_interval = | |
2223 | cpu_to_le16(beacon_int); | |
2224 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2225 | iwl3945_adjust_beacon_interval( |
b481de9c ZY |
2226 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
2227 | } | |
2228 | ||
2229 | priv->rxon_timing.atim_window = 0; | |
2230 | } else { | |
2231 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 2232 | iwl3945_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
2233 | /* TODO: we need to get atim_window from upper stack |
2234 | * for now we set to 0 */ | |
2235 | priv->rxon_timing.atim_window = 0; | |
2236 | } | |
2237 | ||
2238 | interval_tm_unit = | |
2239 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
2240 | result = do_div(tsf, interval_tm_unit); | |
2241 | priv->rxon_timing.beacon_init_val = | |
2242 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
2243 | ||
2244 | IWL_DEBUG_ASSOC | |
2245 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
2246 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
2247 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
2248 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
2249 | } | |
2250 | ||
bb8c093b | 2251 | static int iwl3945_scan_initiate(struct iwl3945_priv *priv) |
b481de9c ZY |
2252 | { |
2253 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
2254 | IWL_ERROR("APs don't scan.\n"); | |
2255 | return 0; | |
2256 | } | |
2257 | ||
bb8c093b | 2258 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
2259 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
2260 | return -EIO; | |
2261 | } | |
2262 | ||
2263 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
2264 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
2265 | return -EAGAIN; | |
2266 | } | |
2267 | ||
2268 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2269 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
2270 | "Queuing.\n"); | |
2271 | return -EAGAIN; | |
2272 | } | |
2273 | ||
2274 | IWL_DEBUG_INFO("Starting scan...\n"); | |
2275 | priv->scan_bands = 2; | |
2276 | set_bit(STATUS_SCANNING, &priv->status); | |
2277 | priv->scan_start = jiffies; | |
2278 | priv->scan_pass_start = priv->scan_start; | |
2279 | ||
2280 | queue_work(priv->workqueue, &priv->request_scan); | |
2281 | ||
2282 | return 0; | |
2283 | } | |
2284 | ||
bb8c093b | 2285 | static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv *priv, int hw_decrypt) |
b481de9c | 2286 | { |
bb8c093b | 2287 | struct iwl3945_rxon_cmd *rxon = &priv->staging_rxon; |
b481de9c ZY |
2288 | |
2289 | if (hw_decrypt) | |
2290 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
2291 | else | |
2292 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
2293 | ||
2294 | return 0; | |
2295 | } | |
2296 | ||
8318d78a JB |
2297 | static void iwl3945_set_flags_for_phymode(struct iwl3945_priv *priv, |
2298 | enum ieee80211_band band) | |
b481de9c | 2299 | { |
8318d78a | 2300 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
2301 | priv->staging_rxon.flags &= |
2302 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
2303 | | RXON_FLG_CCK_MSK); | |
2304 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2305 | } else { | |
bb8c093b | 2306 | /* Copied from iwl3945_bg_post_associate() */ |
b481de9c ZY |
2307 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
2308 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2309 | else | |
2310 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2311 | ||
2312 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
2313 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2314 | ||
2315 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
2316 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
2317 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
2318 | } | |
2319 | } | |
2320 | ||
2321 | /* | |
01ebd063 | 2322 | * initialize rxon structure with default values from eeprom |
b481de9c | 2323 | */ |
bb8c093b | 2324 | static void iwl3945_connection_init_rx_config(struct iwl3945_priv *priv) |
b481de9c | 2325 | { |
bb8c093b | 2326 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
2327 | |
2328 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
2329 | ||
2330 | switch (priv->iw_mode) { | |
2331 | case IEEE80211_IF_TYPE_AP: | |
2332 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; | |
2333 | break; | |
2334 | ||
2335 | case IEEE80211_IF_TYPE_STA: | |
2336 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; | |
2337 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
2338 | break; | |
2339 | ||
2340 | case IEEE80211_IF_TYPE_IBSS: | |
2341 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; | |
2342 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
2343 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
2344 | RXON_FILTER_ACCEPT_GRP_MSK; | |
2345 | break; | |
2346 | ||
2347 | case IEEE80211_IF_TYPE_MNTR: | |
2348 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; | |
2349 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
2350 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
2351 | break; | |
2352 | } | |
2353 | ||
2354 | #if 0 | |
2355 | /* TODO: Figure out when short_preamble would be set and cache from | |
2356 | * that */ | |
2357 | if (!hw_to_local(priv->hw)->short_preamble) | |
2358 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2359 | else | |
2360 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2361 | #endif | |
2362 | ||
8318d78a | 2363 | ch_info = iwl3945_get_channel_info(priv, priv->band, |
b481de9c ZY |
2364 | le16_to_cpu(priv->staging_rxon.channel)); |
2365 | ||
2366 | if (!ch_info) | |
2367 | ch_info = &priv->channel_info[0]; | |
2368 | ||
2369 | /* | |
2370 | * in some case A channels are all non IBSS | |
2371 | * in this case force B/G channel | |
2372 | */ | |
2373 | if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && | |
2374 | !(is_channel_ibss(ch_info))) | |
2375 | ch_info = &priv->channel_info[0]; | |
2376 | ||
2377 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
2378 | if (is_channel_a_band(ch_info)) | |
8318d78a | 2379 | priv->band = IEEE80211_BAND_5GHZ; |
b481de9c | 2380 | else |
8318d78a | 2381 | priv->band = IEEE80211_BAND_2GHZ; |
b481de9c | 2382 | |
8318d78a | 2383 | iwl3945_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
2384 | |
2385 | priv->staging_rxon.ofdm_basic_rates = | |
2386 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2387 | priv->staging_rxon.cck_basic_rates = | |
2388 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2389 | } | |
2390 | ||
bb8c093b | 2391 | static int iwl3945_set_mode(struct iwl3945_priv *priv, int mode) |
b481de9c | 2392 | { |
b481de9c | 2393 | if (mode == IEEE80211_IF_TYPE_IBSS) { |
bb8c093b | 2394 | const struct iwl3945_channel_info *ch_info; |
b481de9c | 2395 | |
bb8c093b | 2396 | ch_info = iwl3945_get_channel_info(priv, |
8318d78a | 2397 | priv->band, |
b481de9c ZY |
2398 | le16_to_cpu(priv->staging_rxon.channel)); |
2399 | ||
2400 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
2401 | IWL_ERROR("channel %d not IBSS channel\n", | |
2402 | le16_to_cpu(priv->staging_rxon.channel)); | |
2403 | return -EINVAL; | |
2404 | } | |
2405 | } | |
2406 | ||
b481de9c ZY |
2407 | priv->iw_mode = mode; |
2408 | ||
bb8c093b | 2409 | iwl3945_connection_init_rx_config(priv); |
b481de9c ZY |
2410 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2411 | ||
bb8c093b | 2412 | iwl3945_clear_stations_table(priv); |
b481de9c | 2413 | |
fde3571f MA |
2414 | /* dont commit rxon if rf-kill is on*/ |
2415 | if (!iwl3945_is_ready_rf(priv)) | |
2416 | return -EAGAIN; | |
2417 | ||
2418 | cancel_delayed_work(&priv->scan_check); | |
2419 | if (iwl3945_scan_cancel_timeout(priv, 100)) { | |
2420 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
2421 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2422 | return -EAGAIN; | |
2423 | } | |
2424 | ||
bb8c093b | 2425 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
2426 | |
2427 | return 0; | |
2428 | } | |
2429 | ||
bb8c093b | 2430 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv *priv, |
b481de9c | 2431 | struct ieee80211_tx_control *ctl, |
bb8c093b | 2432 | struct iwl3945_cmd *cmd, |
b481de9c ZY |
2433 | struct sk_buff *skb_frag, |
2434 | int last_frag) | |
2435 | { | |
bb8c093b | 2436 | struct iwl3945_hw_key *keyinfo = &priv->stations[ctl->key_idx].keyinfo; |
b481de9c ZY |
2437 | |
2438 | switch (keyinfo->alg) { | |
2439 | case ALG_CCMP: | |
2440 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM; | |
2441 | memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen); | |
2442 | IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n"); | |
2443 | break; | |
2444 | ||
2445 | case ALG_TKIP: | |
2446 | #if 0 | |
2447 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP; | |
2448 | ||
2449 | if (last_frag) | |
2450 | memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8, | |
2451 | 8); | |
2452 | else | |
2453 | memset(cmd->cmd.tx.tkip_mic.byte, 0, 8); | |
2454 | #endif | |
2455 | break; | |
2456 | ||
2457 | case ALG_WEP: | |
2458 | cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP | | |
2459 | (ctl->key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; | |
2460 | ||
2461 | if (keyinfo->keylen == 13) | |
2462 | cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128; | |
2463 | ||
2464 | memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen); | |
2465 | ||
2466 | IWL_DEBUG_TX("Configuring packet for WEP encryption " | |
2467 | "with key %d\n", ctl->key_idx); | |
2468 | break; | |
2469 | ||
b481de9c ZY |
2470 | default: |
2471 | printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg); | |
2472 | break; | |
2473 | } | |
2474 | } | |
2475 | ||
2476 | /* | |
2477 | * handle build REPLY_TX command notification. | |
2478 | */ | |
bb8c093b CH |
2479 | static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, |
2480 | struct iwl3945_cmd *cmd, | |
b481de9c ZY |
2481 | struct ieee80211_tx_control *ctrl, |
2482 | struct ieee80211_hdr *hdr, | |
2483 | int is_unicast, u8 std_id) | |
2484 | { | |
2485 | __le16 *qc; | |
2486 | u16 fc = le16_to_cpu(hdr->frame_control); | |
2487 | __le32 tx_flags = cmd->cmd.tx.tx_flags; | |
2488 | ||
2489 | cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
2490 | if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) { | |
2491 | tx_flags |= TX_CMD_FLG_ACK_MSK; | |
2492 | if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) | |
2493 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
2494 | if (ieee80211_is_probe_response(fc) && | |
2495 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) | |
2496 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
2497 | } else { | |
2498 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
2499 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
2500 | } | |
2501 | ||
2502 | cmd->cmd.tx.sta_id = std_id; | |
2503 | if (ieee80211_get_morefrag(hdr)) | |
2504 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; | |
2505 | ||
2506 | qc = ieee80211_get_qos_ctrl(hdr); | |
2507 | if (qc) { | |
2508 | cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf); | |
2509 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; | |
2510 | } else | |
2511 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
2512 | ||
2513 | if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) { | |
2514 | tx_flags |= TX_CMD_FLG_RTS_MSK; | |
2515 | tx_flags &= ~TX_CMD_FLG_CTS_MSK; | |
2516 | } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) { | |
2517 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; | |
2518 | tx_flags |= TX_CMD_FLG_CTS_MSK; | |
2519 | } | |
2520 | ||
2521 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
2522 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
2523 | ||
2524 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
2525 | if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { | |
2526 | if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ || | |
2527 | (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ) | |
bc434dd2 | 2528 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 2529 | else |
bc434dd2 | 2530 | cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2); |
b481de9c ZY |
2531 | } else |
2532 | cmd->cmd.tx.timeout.pm_frame_timeout = 0; | |
2533 | ||
2534 | cmd->cmd.tx.driver_txop = 0; | |
2535 | cmd->cmd.tx.tx_flags = tx_flags; | |
2536 | cmd->cmd.tx.next_frame_len = 0; | |
2537 | } | |
2538 | ||
6440adb5 CB |
2539 | /** |
2540 | * iwl3945_get_sta_id - Find station's index within station table | |
2541 | */ | |
bb8c093b | 2542 | static int iwl3945_get_sta_id(struct iwl3945_priv *priv, struct ieee80211_hdr *hdr) |
b481de9c ZY |
2543 | { |
2544 | int sta_id; | |
2545 | u16 fc = le16_to_cpu(hdr->frame_control); | |
2546 | ||
6440adb5 | 2547 | /* If this frame is broadcast or management, use broadcast station id */ |
b481de9c ZY |
2548 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
2549 | is_multicast_ether_addr(hdr->addr1)) | |
2550 | return priv->hw_setting.bcast_sta_id; | |
2551 | ||
2552 | switch (priv->iw_mode) { | |
2553 | ||
6440adb5 CB |
2554 | /* If we are a client station in a BSS network, use the special |
2555 | * AP station entry (that's the only station we communicate with) */ | |
b481de9c ZY |
2556 | case IEEE80211_IF_TYPE_STA: |
2557 | return IWL_AP_ID; | |
2558 | ||
2559 | /* If we are an AP, then find the station, or use BCAST */ | |
2560 | case IEEE80211_IF_TYPE_AP: | |
bb8c093b | 2561 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2562 | if (sta_id != IWL_INVALID_STATION) |
2563 | return sta_id; | |
2564 | return priv->hw_setting.bcast_sta_id; | |
2565 | ||
6440adb5 CB |
2566 | /* If this frame is going out to an IBSS network, find the station, |
2567 | * or create a new station table entry */ | |
0795af57 JP |
2568 | case IEEE80211_IF_TYPE_IBSS: { |
2569 | DECLARE_MAC_BUF(mac); | |
2570 | ||
6440adb5 | 2571 | /* Create new station table entry */ |
bb8c093b | 2572 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
2573 | if (sta_id != IWL_INVALID_STATION) |
2574 | return sta_id; | |
2575 | ||
bb8c093b | 2576 | sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC); |
b481de9c ZY |
2577 | |
2578 | if (sta_id != IWL_INVALID_STATION) | |
2579 | return sta_id; | |
2580 | ||
0795af57 | 2581 | IWL_DEBUG_DROP("Station %s not in station map. " |
b481de9c | 2582 | "Defaulting to broadcast...\n", |
0795af57 | 2583 | print_mac(mac, hdr->addr1)); |
bb8c093b | 2584 | iwl3945_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
b481de9c | 2585 | return priv->hw_setting.bcast_sta_id; |
0795af57 | 2586 | } |
b481de9c | 2587 | default: |
01ebd063 | 2588 | IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode); |
b481de9c ZY |
2589 | return priv->hw_setting.bcast_sta_id; |
2590 | } | |
2591 | } | |
2592 | ||
2593 | /* | |
2594 | * start REPLY_TX command process | |
2595 | */ | |
bb8c093b | 2596 | static int iwl3945_tx_skb(struct iwl3945_priv *priv, |
b481de9c ZY |
2597 | struct sk_buff *skb, struct ieee80211_tx_control *ctl) |
2598 | { | |
2599 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
bb8c093b | 2600 | struct iwl3945_tfd_frame *tfd; |
b481de9c ZY |
2601 | u32 *control_flags; |
2602 | int txq_id = ctl->queue; | |
bb8c093b CH |
2603 | struct iwl3945_tx_queue *txq = NULL; |
2604 | struct iwl3945_queue *q = NULL; | |
b481de9c ZY |
2605 | dma_addr_t phys_addr; |
2606 | dma_addr_t txcmd_phys; | |
bb8c093b | 2607 | struct iwl3945_cmd *out_cmd = NULL; |
b481de9c ZY |
2608 | u16 len, idx, len_org; |
2609 | u8 id, hdr_len, unicast; | |
2610 | u8 sta_id; | |
2611 | u16 seq_number = 0; | |
2612 | u16 fc; | |
2613 | __le16 *qc; | |
2614 | u8 wait_write_ptr = 0; | |
2615 | unsigned long flags; | |
2616 | int rc; | |
2617 | ||
2618 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2619 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
2620 | IWL_DEBUG_DROP("Dropping - RF KILL\n"); |
2621 | goto drop_unlock; | |
2622 | } | |
2623 | ||
32bfd35d JB |
2624 | if (!priv->vif) { |
2625 | IWL_DEBUG_DROP("Dropping - !priv->vif\n"); | |
b481de9c ZY |
2626 | goto drop_unlock; |
2627 | } | |
2628 | ||
8318d78a | 2629 | if ((ctl->tx_rate->hw_value & 0xFF) == IWL_INVALID_RATE) { |
b481de9c ZY |
2630 | IWL_ERROR("ERROR: No TX rate available.\n"); |
2631 | goto drop_unlock; | |
2632 | } | |
2633 | ||
2634 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
2635 | id = 0; | |
2636 | ||
2637 | fc = le16_to_cpu(hdr->frame_control); | |
2638 | ||
c8b0e6e1 | 2639 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
2640 | if (ieee80211_is_auth(fc)) |
2641 | IWL_DEBUG_TX("Sending AUTH frame\n"); | |
2642 | else if (ieee80211_is_assoc_request(fc)) | |
2643 | IWL_DEBUG_TX("Sending ASSOC frame\n"); | |
2644 | else if (ieee80211_is_reassoc_request(fc)) | |
2645 | IWL_DEBUG_TX("Sending REASSOC frame\n"); | |
2646 | #endif | |
2647 | ||
7878a5a4 | 2648 | /* drop all data frame if we are not associated */ |
a6477249 RC |
2649 | if ((!iwl3945_is_associated(priv) || |
2650 | ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id)) && | |
b481de9c | 2651 | ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) { |
bb8c093b | 2652 | IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n"); |
b481de9c ZY |
2653 | goto drop_unlock; |
2654 | } | |
2655 | ||
2656 | spin_unlock_irqrestore(&priv->lock, flags); | |
2657 | ||
2658 | hdr_len = ieee80211_get_hdrlen(fc); | |
6440adb5 CB |
2659 | |
2660 | /* Find (or create) index into station table for destination station */ | |
bb8c093b | 2661 | sta_id = iwl3945_get_sta_id(priv, hdr); |
b481de9c | 2662 | if (sta_id == IWL_INVALID_STATION) { |
0795af57 JP |
2663 | DECLARE_MAC_BUF(mac); |
2664 | ||
2665 | IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n", | |
2666 | print_mac(mac, hdr->addr1)); | |
b481de9c ZY |
2667 | goto drop; |
2668 | } | |
2669 | ||
2670 | IWL_DEBUG_RATE("station Id %d\n", sta_id); | |
2671 | ||
2672 | qc = ieee80211_get_qos_ctrl(hdr); | |
2673 | if (qc) { | |
2674 | u8 tid = (u8)(le16_to_cpu(*qc) & 0xf); | |
2675 | seq_number = priv->stations[sta_id].tid[tid].seq_number & | |
2676 | IEEE80211_SCTL_SEQ; | |
2677 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
2678 | (hdr->seq_ctrl & | |
2679 | __constant_cpu_to_le16(IEEE80211_SCTL_FRAG)); | |
2680 | seq_number += 0x10; | |
2681 | } | |
6440adb5 CB |
2682 | |
2683 | /* Descriptor for chosen Tx queue */ | |
b481de9c ZY |
2684 | txq = &priv->txq[txq_id]; |
2685 | q = &txq->q; | |
2686 | ||
2687 | spin_lock_irqsave(&priv->lock, flags); | |
2688 | ||
6440adb5 | 2689 | /* Set up first empty TFD within this queue's circular TFD buffer */ |
fc4b6853 | 2690 | tfd = &txq->bd[q->write_ptr]; |
b481de9c ZY |
2691 | memset(tfd, 0, sizeof(*tfd)); |
2692 | control_flags = (u32 *) tfd; | |
fc4b6853 | 2693 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 2694 | |
6440adb5 | 2695 | /* Set up driver data for this TFD */ |
bb8c093b | 2696 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl3945_tx_info)); |
fc4b6853 TW |
2697 | txq->txb[q->write_ptr].skb[0] = skb; |
2698 | memcpy(&(txq->txb[q->write_ptr].status.control), | |
b481de9c | 2699 | ctl, sizeof(struct ieee80211_tx_control)); |
6440adb5 CB |
2700 | |
2701 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
b481de9c ZY |
2702 | out_cmd = &txq->cmd[idx]; |
2703 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); | |
2704 | memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx)); | |
6440adb5 CB |
2705 | |
2706 | /* | |
2707 | * Set up the Tx-command (not MAC!) header. | |
2708 | * Store the chosen Tx queue and TFD index within the sequence field; | |
2709 | * after Tx, uCode's Tx response will return this value so driver can | |
2710 | * locate the frame within the tx queue and do post-tx processing. | |
2711 | */ | |
b481de9c ZY |
2712 | out_cmd->hdr.cmd = REPLY_TX; |
2713 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 2714 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 CB |
2715 | |
2716 | /* Copy MAC header from skb into command buffer */ | |
b481de9c ZY |
2717 | memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len); |
2718 | ||
6440adb5 CB |
2719 | /* |
2720 | * Use the first empty entry in this queue's command buffer array | |
2721 | * to contain the Tx command and MAC header concatenated together | |
2722 | * (payload data will be in another buffer). | |
2723 | * Size of this varies, due to varying MAC header length. | |
2724 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
2725 | * of the MAC header (device reads on dword boundaries). | |
2726 | * We'll tell device about this padding later. | |
2727 | */ | |
b481de9c | 2728 | len = priv->hw_setting.tx_cmd_len + |
bb8c093b | 2729 | sizeof(struct iwl3945_cmd_header) + hdr_len; |
b481de9c ZY |
2730 | |
2731 | len_org = len; | |
2732 | len = (len + 3) & ~3; | |
2733 | ||
2734 | if (len_org != len) | |
2735 | len_org = 1; | |
2736 | else | |
2737 | len_org = 0; | |
2738 | ||
6440adb5 CB |
2739 | /* Physical address of this Tx command's header (not MAC header!), |
2740 | * within command buffer array. */ | |
bb8c093b CH |
2741 | txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl3945_cmd) * idx + |
2742 | offsetof(struct iwl3945_cmd, hdr); | |
b481de9c | 2743 | |
6440adb5 CB |
2744 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
2745 | * first entry */ | |
bb8c093b | 2746 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len); |
b481de9c ZY |
2747 | |
2748 | if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) | |
bb8c093b | 2749 | iwl3945_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, 0); |
b481de9c | 2750 | |
6440adb5 CB |
2751 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
2752 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
2753 | len = skb->len - hdr_len; |
2754 | if (len) { | |
2755 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
2756 | len, PCI_DMA_TODEVICE); | |
bb8c093b | 2757 | iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len); |
b481de9c ZY |
2758 | } |
2759 | ||
b481de9c | 2760 | if (!len) |
6440adb5 | 2761 | /* If there is no payload, then we use only one Tx buffer */ |
b481de9c ZY |
2762 | *control_flags = TFD_CTL_COUNT_SET(1); |
2763 | else | |
6440adb5 CB |
2764 | /* Else use 2 buffers. |
2765 | * Tell 3945 about any padding after MAC header */ | |
b481de9c ZY |
2766 | *control_flags = TFD_CTL_COUNT_SET(2) | |
2767 | TFD_CTL_PAD_SET(U32_PAD(len)); | |
2768 | ||
6440adb5 | 2769 | /* Total # bytes to be transmitted */ |
b481de9c ZY |
2770 | len = (u16)skb->len; |
2771 | out_cmd->cmd.tx.len = cpu_to_le16(len); | |
2772 | ||
2773 | /* TODO need this for burst mode later on */ | |
bb8c093b | 2774 | iwl3945_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id); |
b481de9c ZY |
2775 | |
2776 | /* set is_hcca to 0; it probably will never be implemented */ | |
bb8c093b | 2777 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0); |
b481de9c ZY |
2778 | |
2779 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; | |
2780 | out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
2781 | ||
2782 | if (!ieee80211_get_morefrag(hdr)) { | |
2783 | txq->need_update = 1; | |
2784 | if (qc) { | |
2785 | u8 tid = (u8)(le16_to_cpu(*qc) & 0xf); | |
2786 | priv->stations[sta_id].tid[tid].seq_number = seq_number; | |
2787 | } | |
2788 | } else { | |
2789 | wait_write_ptr = 1; | |
2790 | txq->need_update = 0; | |
2791 | } | |
2792 | ||
bb8c093b | 2793 | iwl3945_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload, |
b481de9c ZY |
2794 | sizeof(out_cmd->cmd.tx)); |
2795 | ||
bb8c093b | 2796 | iwl3945_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr, |
b481de9c ZY |
2797 | ieee80211_get_hdrlen(fc)); |
2798 | ||
6440adb5 | 2799 | /* Tell device the write index *just past* this latest filled TFD */ |
bb8c093b CH |
2800 | q->write_ptr = iwl3945_queue_inc_wrap(q->write_ptr, q->n_bd); |
2801 | rc = iwl3945_tx_queue_update_write_ptr(priv, txq); | |
b481de9c ZY |
2802 | spin_unlock_irqrestore(&priv->lock, flags); |
2803 | ||
2804 | if (rc) | |
2805 | return rc; | |
2806 | ||
bb8c093b | 2807 | if ((iwl3945_queue_space(q) < q->high_mark) |
b481de9c ZY |
2808 | && priv->mac80211_registered) { |
2809 | if (wait_write_ptr) { | |
2810 | spin_lock_irqsave(&priv->lock, flags); | |
2811 | txq->need_update = 1; | |
bb8c093b | 2812 | iwl3945_tx_queue_update_write_ptr(priv, txq); |
b481de9c ZY |
2813 | spin_unlock_irqrestore(&priv->lock, flags); |
2814 | } | |
2815 | ||
2816 | ieee80211_stop_queue(priv->hw, ctl->queue); | |
2817 | } | |
2818 | ||
2819 | return 0; | |
2820 | ||
2821 | drop_unlock: | |
2822 | spin_unlock_irqrestore(&priv->lock, flags); | |
2823 | drop: | |
2824 | return -1; | |
2825 | } | |
2826 | ||
bb8c093b | 2827 | static void iwl3945_set_rate(struct iwl3945_priv *priv) |
b481de9c | 2828 | { |
8318d78a | 2829 | const struct ieee80211_supported_band *sband = NULL; |
b481de9c ZY |
2830 | struct ieee80211_rate *rate; |
2831 | int i; | |
2832 | ||
8318d78a JB |
2833 | sband = iwl3945_get_band(priv, priv->band); |
2834 | if (!sband) { | |
c4ba9621 SA |
2835 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); |
2836 | return; | |
2837 | } | |
b481de9c ZY |
2838 | |
2839 | priv->active_rate = 0; | |
2840 | priv->active_rate_basic = 0; | |
2841 | ||
8318d78a JB |
2842 | IWL_DEBUG_RATE("Setting rates for %s GHz\n", |
2843 | sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5"); | |
2844 | ||
2845 | for (i = 0; i < sband->n_bitrates; i++) { | |
2846 | rate = &sband->bitrates[i]; | |
2847 | if ((rate->hw_value < IWL_RATE_COUNT) && | |
2848 | !(rate->flags & IEEE80211_CHAN_DISABLED)) { | |
2849 | IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n", | |
2850 | rate->hw_value, iwl3945_rates[rate->hw_value].plcp); | |
2851 | priv->active_rate |= (1 << rate->hw_value); | |
2852 | } | |
b481de9c ZY |
2853 | } |
2854 | ||
2855 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
2856 | priv->active_rate, priv->active_rate_basic); | |
2857 | ||
2858 | /* | |
2859 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
2860 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
2861 | * OFDM | |
2862 | */ | |
2863 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
2864 | priv->staging_rxon.cck_basic_rates = | |
2865 | ((priv->active_rate_basic & | |
2866 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
2867 | else | |
2868 | priv->staging_rxon.cck_basic_rates = | |
2869 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
2870 | ||
2871 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
2872 | priv->staging_rxon.ofdm_basic_rates = | |
2873 | ((priv->active_rate_basic & | |
2874 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
2875 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
2876 | else | |
2877 | priv->staging_rxon.ofdm_basic_rates = | |
2878 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2879 | } | |
2880 | ||
bb8c093b | 2881 | static void iwl3945_radio_kill_sw(struct iwl3945_priv *priv, int disable_radio) |
b481de9c ZY |
2882 | { |
2883 | unsigned long flags; | |
2884 | ||
2885 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
2886 | return; | |
2887 | ||
2888 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
2889 | disable_radio ? "OFF" : "ON"); | |
2890 | ||
2891 | if (disable_radio) { | |
bb8c093b | 2892 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
2893 | /* FIXME: This is a workaround for AP */ |
2894 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
2895 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2896 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
2897 | CSR_UCODE_SW_BIT_RFKILL); |
2898 | spin_unlock_irqrestore(&priv->lock, flags); | |
bb8c093b | 2899 | iwl3945_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0); |
b481de9c ZY |
2900 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
2901 | } | |
2902 | return; | |
2903 | } | |
2904 | ||
2905 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2906 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
2907 | |
2908 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
2909 | spin_unlock_irqrestore(&priv->lock, flags); | |
2910 | ||
2911 | /* wake up ucode */ | |
2912 | msleep(10); | |
2913 | ||
2914 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
2915 | iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
2916 | if (!iwl3945_grab_nic_access(priv)) | |
2917 | iwl3945_release_nic_access(priv); | |
b481de9c ZY |
2918 | spin_unlock_irqrestore(&priv->lock, flags); |
2919 | ||
2920 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
2921 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2922 | "disabled by HW switch\n"); | |
2923 | return; | |
2924 | } | |
2925 | ||
2926 | queue_work(priv->workqueue, &priv->restart); | |
2927 | return; | |
2928 | } | |
2929 | ||
bb8c093b | 2930 | void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb, |
b481de9c ZY |
2931 | u32 decrypt_res, struct ieee80211_rx_status *stats) |
2932 | { | |
2933 | u16 fc = | |
2934 | le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control); | |
2935 | ||
2936 | if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) | |
2937 | return; | |
2938 | ||
2939 | if (!(fc & IEEE80211_FCTL_PROTECTED)) | |
2940 | return; | |
2941 | ||
2942 | IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res); | |
2943 | switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { | |
2944 | case RX_RES_STATUS_SEC_TYPE_TKIP: | |
2945 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2946 | RX_RES_STATUS_BAD_ICV_MIC) | |
2947 | stats->flag |= RX_FLAG_MMIC_ERROR; | |
2948 | case RX_RES_STATUS_SEC_TYPE_WEP: | |
2949 | case RX_RES_STATUS_SEC_TYPE_CCMP: | |
2950 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2951 | RX_RES_STATUS_DECRYPT_OK) { | |
2952 | IWL_DEBUG_RX("hw decrypt successfully!!!\n"); | |
2953 | stats->flag |= RX_FLAG_DECRYPTED; | |
2954 | } | |
2955 | break; | |
2956 | ||
2957 | default: | |
2958 | break; | |
2959 | } | |
2960 | } | |
2961 | ||
b481de9c ZY |
2962 | #define IWL_PACKET_RETRY_TIME HZ |
2963 | ||
bb8c093b | 2964 | int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
2965 | { |
2966 | u16 sc = le16_to_cpu(header->seq_ctrl); | |
2967 | u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4; | |
2968 | u16 frag = sc & IEEE80211_SCTL_FRAG; | |
2969 | u16 *last_seq, *last_frag; | |
2970 | unsigned long *last_time; | |
2971 | ||
2972 | switch (priv->iw_mode) { | |
2973 | case IEEE80211_IF_TYPE_IBSS:{ | |
2974 | struct list_head *p; | |
bb8c093b | 2975 | struct iwl3945_ibss_seq *entry = NULL; |
b481de9c ZY |
2976 | u8 *mac = header->addr2; |
2977 | int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1); | |
2978 | ||
2979 | __list_for_each(p, &priv->ibss_mac_hash[index]) { | |
bb8c093b | 2980 | entry = list_entry(p, struct iwl3945_ibss_seq, list); |
b481de9c ZY |
2981 | if (!compare_ether_addr(entry->mac, mac)) |
2982 | break; | |
2983 | } | |
2984 | if (p == &priv->ibss_mac_hash[index]) { | |
2985 | entry = kzalloc(sizeof(*entry), GFP_ATOMIC); | |
2986 | if (!entry) { | |
bc434dd2 | 2987 | IWL_ERROR("Cannot malloc new mac entry\n"); |
b481de9c ZY |
2988 | return 0; |
2989 | } | |
2990 | memcpy(entry->mac, mac, ETH_ALEN); | |
2991 | entry->seq_num = seq; | |
2992 | entry->frag_num = frag; | |
2993 | entry->packet_time = jiffies; | |
bc434dd2 | 2994 | list_add(&entry->list, &priv->ibss_mac_hash[index]); |
b481de9c ZY |
2995 | return 0; |
2996 | } | |
2997 | last_seq = &entry->seq_num; | |
2998 | last_frag = &entry->frag_num; | |
2999 | last_time = &entry->packet_time; | |
3000 | break; | |
3001 | } | |
3002 | case IEEE80211_IF_TYPE_STA: | |
3003 | last_seq = &priv->last_seq_num; | |
3004 | last_frag = &priv->last_frag_num; | |
3005 | last_time = &priv->last_packet_time; | |
3006 | break; | |
3007 | default: | |
3008 | return 0; | |
3009 | } | |
3010 | if ((*last_seq == seq) && | |
3011 | time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) { | |
3012 | if (*last_frag == frag) | |
3013 | goto drop; | |
3014 | if (*last_frag + 1 != frag) | |
3015 | /* out-of-order fragment */ | |
3016 | goto drop; | |
3017 | } else | |
3018 | *last_seq = seq; | |
3019 | ||
3020 | *last_frag = frag; | |
3021 | *last_time = jiffies; | |
3022 | return 0; | |
3023 | ||
3024 | drop: | |
3025 | return 1; | |
3026 | } | |
3027 | ||
c8b0e6e1 | 3028 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
3029 | |
3030 | #include "iwl-spectrum.h" | |
3031 | ||
3032 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
3033 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
3034 | #define TIME_UNIT 1024 | |
3035 | ||
3036 | /* | |
3037 | * extended beacon time format | |
3038 | * time in usec will be changed into a 32-bit value in 8:24 format | |
3039 | * the high 1 byte is the beacon counts | |
3040 | * the lower 3 bytes is the time in usec within one beacon interval | |
3041 | */ | |
3042 | ||
bb8c093b | 3043 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
3044 | { |
3045 | u32 quot; | |
3046 | u32 rem; | |
3047 | u32 interval = beacon_interval * 1024; | |
3048 | ||
3049 | if (!interval || !usec) | |
3050 | return 0; | |
3051 | ||
3052 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
3053 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
3054 | ||
3055 | return (quot << 24) + rem; | |
3056 | } | |
3057 | ||
3058 | /* base is usually what we get from ucode with each received frame, | |
3059 | * the same as HW timer counter counting down | |
3060 | */ | |
3061 | ||
bb8c093b | 3062 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
3063 | { |
3064 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
3065 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
3066 | u32 interval = beacon_interval * TIME_UNIT; | |
3067 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
3068 | (addon & BEACON_TIME_MASK_HIGH); | |
3069 | ||
3070 | if (base_low > addon_low) | |
3071 | res += base_low - addon_low; | |
3072 | else if (base_low < addon_low) { | |
3073 | res += interval + base_low - addon_low; | |
3074 | res += (1 << 24); | |
3075 | } else | |
3076 | res += (1 << 24); | |
3077 | ||
3078 | return cpu_to_le32(res); | |
3079 | } | |
3080 | ||
bb8c093b | 3081 | static int iwl3945_get_measurement(struct iwl3945_priv *priv, |
b481de9c ZY |
3082 | struct ieee80211_measurement_params *params, |
3083 | u8 type) | |
3084 | { | |
bb8c093b CH |
3085 | struct iwl3945_spectrum_cmd spectrum; |
3086 | struct iwl3945_rx_packet *res; | |
3087 | struct iwl3945_host_cmd cmd = { | |
b481de9c ZY |
3088 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
3089 | .data = (void *)&spectrum, | |
3090 | .meta.flags = CMD_WANT_SKB, | |
3091 | }; | |
3092 | u32 add_time = le64_to_cpu(params->start_time); | |
3093 | int rc; | |
3094 | int spectrum_resp_status; | |
3095 | int duration = le16_to_cpu(params->duration); | |
3096 | ||
bb8c093b | 3097 | if (iwl3945_is_associated(priv)) |
b481de9c | 3098 | add_time = |
bb8c093b | 3099 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
3100 | le64_to_cpu(params->start_time) - priv->last_tsf, |
3101 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
3102 | ||
3103 | memset(&spectrum, 0, sizeof(spectrum)); | |
3104 | ||
3105 | spectrum.channel_count = cpu_to_le16(1); | |
3106 | spectrum.flags = | |
3107 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
3108 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
3109 | cmd.len = sizeof(spectrum); | |
3110 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
3111 | ||
bb8c093b | 3112 | if (iwl3945_is_associated(priv)) |
b481de9c | 3113 | spectrum.start_time = |
bb8c093b | 3114 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
3115 | add_time, |
3116 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
3117 | else | |
3118 | spectrum.start_time = 0; | |
3119 | ||
3120 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
3121 | spectrum.channels[0].channel = params->channel; | |
3122 | spectrum.channels[0].type = type; | |
3123 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
3124 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
3125 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
3126 | ||
bb8c093b | 3127 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
3128 | if (rc) |
3129 | return rc; | |
3130 | ||
bb8c093b | 3131 | res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
3132 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
3133 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
3134 | rc = -EIO; | |
3135 | } | |
3136 | ||
3137 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
3138 | switch (spectrum_resp_status) { | |
3139 | case 0: /* Command will be handled */ | |
3140 | if (res->u.spectrum.id != 0xff) { | |
bc434dd2 IS |
3141 | IWL_DEBUG_INFO("Replaced existing measurement: %d\n", |
3142 | res->u.spectrum.id); | |
b481de9c ZY |
3143 | priv->measurement_status &= ~MEASUREMENT_READY; |
3144 | } | |
3145 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
3146 | rc = 0; | |
3147 | break; | |
3148 | ||
3149 | case 1: /* Command will not be handled */ | |
3150 | rc = -EAGAIN; | |
3151 | break; | |
3152 | } | |
3153 | ||
3154 | dev_kfree_skb_any(cmd.meta.u.skb); | |
3155 | ||
3156 | return rc; | |
3157 | } | |
3158 | #endif | |
3159 | ||
bb8c093b CH |
3160 | static void iwl3945_txstatus_to_ieee(struct iwl3945_priv *priv, |
3161 | struct iwl3945_tx_info *tx_sta) | |
b481de9c ZY |
3162 | { |
3163 | ||
3164 | tx_sta->status.ack_signal = 0; | |
3165 | tx_sta->status.excessive_retries = 0; | |
3166 | tx_sta->status.queue_length = 0; | |
3167 | tx_sta->status.queue_number = 0; | |
3168 | ||
3169 | if (in_interrupt()) | |
3170 | ieee80211_tx_status_irqsafe(priv->hw, | |
3171 | tx_sta->skb[0], &(tx_sta->status)); | |
3172 | else | |
3173 | ieee80211_tx_status(priv->hw, | |
3174 | tx_sta->skb[0], &(tx_sta->status)); | |
3175 | ||
3176 | tx_sta->skb[0] = NULL; | |
3177 | } | |
3178 | ||
3179 | /** | |
6440adb5 | 3180 | * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd |
b481de9c | 3181 | * |
6440adb5 CB |
3182 | * When FW advances 'R' index, all entries between old and new 'R' index |
3183 | * need to be reclaimed. As result, some free space forms. If there is | |
3184 | * enough free space (> low mark), wake the stack that feeds us. | |
b481de9c | 3185 | */ |
bb8c093b | 3186 | static int iwl3945_tx_queue_reclaim(struct iwl3945_priv *priv, int txq_id, int index) |
b481de9c | 3187 | { |
bb8c093b CH |
3188 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; |
3189 | struct iwl3945_queue *q = &txq->q; | |
b481de9c ZY |
3190 | int nfreed = 0; |
3191 | ||
3192 | if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) { | |
3193 | IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " | |
3194 | "is out of range [0-%d] %d %d.\n", txq_id, | |
fc4b6853 | 3195 | index, q->n_bd, q->write_ptr, q->read_ptr); |
b481de9c ZY |
3196 | return 0; |
3197 | } | |
3198 | ||
bb8c093b | 3199 | for (index = iwl3945_queue_inc_wrap(index, q->n_bd); |
fc4b6853 | 3200 | q->read_ptr != index; |
bb8c093b | 3201 | q->read_ptr = iwl3945_queue_inc_wrap(q->read_ptr, q->n_bd)) { |
b481de9c | 3202 | if (txq_id != IWL_CMD_QUEUE_NUM) { |
bb8c093b | 3203 | iwl3945_txstatus_to_ieee(priv, |
fc4b6853 | 3204 | &(txq->txb[txq->q.read_ptr])); |
bb8c093b | 3205 | iwl3945_hw_txq_free_tfd(priv, txq); |
b481de9c ZY |
3206 | } else if (nfreed > 1) { |
3207 | IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, | |
fc4b6853 | 3208 | q->write_ptr, q->read_ptr); |
b481de9c ZY |
3209 | queue_work(priv->workqueue, &priv->restart); |
3210 | } | |
3211 | nfreed++; | |
3212 | } | |
3213 | ||
bb8c093b | 3214 | if (iwl3945_queue_space(q) > q->low_mark && (txq_id >= 0) && |
b481de9c ZY |
3215 | (txq_id != IWL_CMD_QUEUE_NUM) && |
3216 | priv->mac80211_registered) | |
3217 | ieee80211_wake_queue(priv->hw, txq_id); | |
3218 | ||
3219 | ||
3220 | return nfreed; | |
3221 | } | |
3222 | ||
bb8c093b | 3223 | static int iwl3945_is_tx_success(u32 status) |
b481de9c ZY |
3224 | { |
3225 | return (status & 0xFF) == 0x1; | |
3226 | } | |
3227 | ||
3228 | /****************************************************************************** | |
3229 | * | |
3230 | * Generic RX handler implementations | |
3231 | * | |
3232 | ******************************************************************************/ | |
6440adb5 CB |
3233 | /** |
3234 | * iwl3945_rx_reply_tx - Handle Tx response | |
3235 | */ | |
bb8c093b CH |
3236 | static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, |
3237 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3238 | { |
bb8c093b | 3239 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3240 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
3241 | int txq_id = SEQ_TO_QUEUE(sequence); | |
3242 | int index = SEQ_TO_INDEX(sequence); | |
bb8c093b | 3243 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; |
b481de9c | 3244 | struct ieee80211_tx_status *tx_status; |
bb8c093b | 3245 | struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; |
b481de9c ZY |
3246 | u32 status = le32_to_cpu(tx_resp->status); |
3247 | ||
3248 | if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) { | |
3249 | IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " | |
3250 | "is out of range [0-%d] %d %d\n", txq_id, | |
fc4b6853 TW |
3251 | index, txq->q.n_bd, txq->q.write_ptr, |
3252 | txq->q.read_ptr); | |
b481de9c ZY |
3253 | return; |
3254 | } | |
3255 | ||
fc4b6853 | 3256 | tx_status = &(txq->txb[txq->q.read_ptr].status); |
b481de9c ZY |
3257 | |
3258 | tx_status->retry_count = tx_resp->failure_frame; | |
3259 | tx_status->queue_number = status; | |
3260 | tx_status->queue_length = tx_resp->bt_kill_count; | |
3261 | tx_status->queue_length |= tx_resp->failure_rts; | |
3262 | ||
3263 | tx_status->flags = | |
bb8c093b | 3264 | iwl3945_is_tx_success(status) ? IEEE80211_TX_STATUS_ACK : 0; |
b481de9c | 3265 | |
b481de9c | 3266 | IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", |
bb8c093b | 3267 | txq_id, iwl3945_get_tx_fail_reason(status), status, |
b481de9c ZY |
3268 | tx_resp->rate, tx_resp->failure_frame); |
3269 | ||
3270 | IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); | |
3271 | if (index != -1) | |
bb8c093b | 3272 | iwl3945_tx_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
3273 | |
3274 | if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) | |
3275 | IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n"); | |
3276 | } | |
3277 | ||
3278 | ||
bb8c093b CH |
3279 | static void iwl3945_rx_reply_alive(struct iwl3945_priv *priv, |
3280 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3281 | { |
bb8c093b CH |
3282 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3283 | struct iwl3945_alive_resp *palive; | |
b481de9c ZY |
3284 | struct delayed_work *pwork; |
3285 | ||
3286 | palive = &pkt->u.alive_frame; | |
3287 | ||
3288 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
3289 | "0x%01X 0x%01X\n", | |
3290 | palive->is_valid, palive->ver_type, | |
3291 | palive->ver_subtype); | |
3292 | ||
3293 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
3294 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
3295 | memcpy(&priv->card_alive_init, | |
3296 | &pkt->u.alive_frame, | |
bb8c093b | 3297 | sizeof(struct iwl3945_init_alive_resp)); |
b481de9c ZY |
3298 | pwork = &priv->init_alive_start; |
3299 | } else { | |
3300 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
3301 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
bb8c093b | 3302 | sizeof(struct iwl3945_alive_resp)); |
b481de9c | 3303 | pwork = &priv->alive_start; |
bb8c093b | 3304 | iwl3945_disable_events(priv); |
b481de9c ZY |
3305 | } |
3306 | ||
3307 | /* We delay the ALIVE response by 5ms to | |
3308 | * give the HW RF Kill time to activate... */ | |
3309 | if (palive->is_valid == UCODE_VALID_OK) | |
3310 | queue_delayed_work(priv->workqueue, pwork, | |
3311 | msecs_to_jiffies(5)); | |
3312 | else | |
3313 | IWL_WARNING("uCode did not respond OK.\n"); | |
3314 | } | |
3315 | ||
bb8c093b CH |
3316 | static void iwl3945_rx_reply_add_sta(struct iwl3945_priv *priv, |
3317 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3318 | { |
bb8c093b | 3319 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3320 | |
3321 | IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); | |
3322 | return; | |
3323 | } | |
3324 | ||
bb8c093b CH |
3325 | static void iwl3945_rx_reply_error(struct iwl3945_priv *priv, |
3326 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3327 | { |
bb8c093b | 3328 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3329 | |
3330 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
3331 | "seq 0x%04X ser 0x%08X\n", | |
3332 | le32_to_cpu(pkt->u.err_resp.error_type), | |
3333 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
3334 | pkt->u.err_resp.cmd_id, | |
3335 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
3336 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
3337 | } | |
3338 | ||
3339 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
3340 | ||
bb8c093b | 3341 | static void iwl3945_rx_csa(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb) |
b481de9c | 3342 | { |
bb8c093b CH |
3343 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3344 | struct iwl3945_rxon_cmd *rxon = (void *)&priv->active_rxon; | |
3345 | struct iwl3945_csa_notification *csa = &(pkt->u.csa_notif); | |
b481de9c ZY |
3346 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
3347 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
3348 | rxon->channel = csa->channel; | |
3349 | priv->staging_rxon.channel = csa->channel; | |
3350 | } | |
3351 | ||
bb8c093b CH |
3352 | static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv *priv, |
3353 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3354 | { |
c8b0e6e1 | 3355 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
bb8c093b CH |
3356 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3357 | struct iwl3945_spectrum_notification *report = &(pkt->u.spectrum_notif); | |
b481de9c ZY |
3358 | |
3359 | if (!report->state) { | |
3360 | IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO, | |
3361 | "Spectrum Measure Notification: Start\n"); | |
3362 | return; | |
3363 | } | |
3364 | ||
3365 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
3366 | priv->measurement_status |= MEASUREMENT_READY; | |
3367 | #endif | |
3368 | } | |
3369 | ||
bb8c093b CH |
3370 | static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv *priv, |
3371 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3372 | { |
c8b0e6e1 | 3373 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3374 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3375 | struct iwl3945_sleep_notification *sleep = &(pkt->u.sleep_notif); | |
b481de9c ZY |
3376 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
3377 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
3378 | #endif | |
3379 | } | |
3380 | ||
bb8c093b CH |
3381 | static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv *priv, |
3382 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3383 | { |
bb8c093b | 3384 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3385 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
3386 | "notification for %s:\n", | |
3387 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bb8c093b | 3388 | iwl3945_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
3389 | } |
3390 | ||
bb8c093b | 3391 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 3392 | { |
bb8c093b CH |
3393 | struct iwl3945_priv *priv = |
3394 | container_of(work, struct iwl3945_priv, beacon_update); | |
b481de9c ZY |
3395 | struct sk_buff *beacon; |
3396 | ||
3397 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
32bfd35d | 3398 | beacon = ieee80211_beacon_get(priv->hw, priv->vif, NULL); |
b481de9c ZY |
3399 | |
3400 | if (!beacon) { | |
3401 | IWL_ERROR("update beacon failed\n"); | |
3402 | return; | |
3403 | } | |
3404 | ||
3405 | mutex_lock(&priv->mutex); | |
3406 | /* new beacon skb is allocated every time; dispose previous.*/ | |
3407 | if (priv->ibss_beacon) | |
3408 | dev_kfree_skb(priv->ibss_beacon); | |
3409 | ||
3410 | priv->ibss_beacon = beacon; | |
3411 | mutex_unlock(&priv->mutex); | |
3412 | ||
bb8c093b | 3413 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3414 | } |
3415 | ||
bb8c093b CH |
3416 | static void iwl3945_rx_beacon_notif(struct iwl3945_priv *priv, |
3417 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3418 | { |
c8b0e6e1 | 3419 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3420 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3421 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); | |
b481de9c ZY |
3422 | u8 rate = beacon->beacon_notify_hdr.rate; |
3423 | ||
3424 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
3425 | "tsf %d %d rate %d\n", | |
3426 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
3427 | beacon->beacon_notify_hdr.failure_frame, | |
3428 | le32_to_cpu(beacon->ibss_mgr_status), | |
3429 | le32_to_cpu(beacon->high_tsf), | |
3430 | le32_to_cpu(beacon->low_tsf), rate); | |
3431 | #endif | |
3432 | ||
3433 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && | |
3434 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) | |
3435 | queue_work(priv->workqueue, &priv->beacon_update); | |
3436 | } | |
3437 | ||
3438 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
bb8c093b CH |
3439 | static void iwl3945_rx_reply_scan(struct iwl3945_priv *priv, |
3440 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3441 | { |
c8b0e6e1 | 3442 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
3443 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3444 | struct iwl3945_scanreq_notification *notif = | |
3445 | (struct iwl3945_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
3446 | |
3447 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
3448 | #endif | |
3449 | } | |
3450 | ||
3451 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
bb8c093b CH |
3452 | static void iwl3945_rx_scan_start_notif(struct iwl3945_priv *priv, |
3453 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3454 | { |
bb8c093b CH |
3455 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3456 | struct iwl3945_scanstart_notification *notif = | |
3457 | (struct iwl3945_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
3458 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
3459 | IWL_DEBUG_SCAN("Scan start: " | |
3460 | "%d [802.11%s] " | |
3461 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
3462 | notif->channel, | |
3463 | notif->band ? "bg" : "a", | |
3464 | notif->tsf_high, | |
3465 | notif->tsf_low, notif->status, notif->beacon_timer); | |
3466 | } | |
3467 | ||
3468 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
bb8c093b CH |
3469 | static void iwl3945_rx_scan_results_notif(struct iwl3945_priv *priv, |
3470 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3471 | { |
bb8c093b CH |
3472 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3473 | struct iwl3945_scanresults_notification *notif = | |
3474 | (struct iwl3945_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
3475 | |
3476 | IWL_DEBUG_SCAN("Scan ch.res: " | |
3477 | "%d [802.11%s] " | |
3478 | "(TSF: 0x%08X:%08X) - %d " | |
3479 | "elapsed=%lu usec (%dms since last)\n", | |
3480 | notif->channel, | |
3481 | notif->band ? "bg" : "a", | |
3482 | le32_to_cpu(notif->tsf_high), | |
3483 | le32_to_cpu(notif->tsf_low), | |
3484 | le32_to_cpu(notif->statistics[0]), | |
3485 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
3486 | jiffies_to_msecs(elapsed_jiffies | |
3487 | (priv->last_scan_jiffies, jiffies))); | |
3488 | ||
3489 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3490 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3491 | } |
3492 | ||
3493 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
bb8c093b CH |
3494 | static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv *priv, |
3495 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3496 | { |
bb8c093b CH |
3497 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
3498 | struct iwl3945_scancomplete_notification *scan_notif = (void *)pkt->u.raw; | |
b481de9c ZY |
3499 | |
3500 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
3501 | scan_notif->scanned_channels, | |
3502 | scan_notif->tsf_low, | |
3503 | scan_notif->tsf_high, scan_notif->status); | |
3504 | ||
3505 | /* The HW is no longer scanning */ | |
3506 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
3507 | ||
3508 | /* The scan completion notification came in, so kill that timer... */ | |
3509 | cancel_delayed_work(&priv->scan_check); | |
3510 | ||
3511 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
3512 | (priv->scan_bands == 2) ? "2.4" : "5.2", | |
3513 | jiffies_to_msecs(elapsed_jiffies | |
3514 | (priv->scan_pass_start, jiffies))); | |
3515 | ||
3516 | /* Remove this scanned band from the list | |
3517 | * of pending bands to scan */ | |
3518 | priv->scan_bands--; | |
3519 | ||
3520 | /* If a request to abort was given, or the scan did not succeed | |
3521 | * then we reset the scan state machine and terminate, | |
3522 | * re-queuing another scan if one has been requested */ | |
3523 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3524 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
3525 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
3526 | } else { | |
3527 | /* If there are more bands on this scan pass reschedule */ | |
3528 | if (priv->scan_bands > 0) | |
3529 | goto reschedule; | |
3530 | } | |
3531 | ||
3532 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 3533 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
3534 | IWL_DEBUG_INFO("Setting scan to off\n"); |
3535 | ||
3536 | clear_bit(STATUS_SCANNING, &priv->status); | |
3537 | ||
3538 | IWL_DEBUG_INFO("Scan took %dms\n", | |
3539 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
3540 | ||
3541 | queue_work(priv->workqueue, &priv->scan_completed); | |
3542 | ||
3543 | return; | |
3544 | ||
3545 | reschedule: | |
3546 | priv->scan_pass_start = jiffies; | |
3547 | queue_work(priv->workqueue, &priv->request_scan); | |
3548 | } | |
3549 | ||
3550 | /* Handle notification from uCode that card's power state is changing | |
3551 | * due to software, hardware, or critical temperature RFKILL */ | |
bb8c093b CH |
3552 | static void iwl3945_rx_card_state_notif(struct iwl3945_priv *priv, |
3553 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3554 | { |
bb8c093b | 3555 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
3556 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
3557 | unsigned long status = priv->status; | |
3558 | ||
3559 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
3560 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
3561 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
3562 | ||
bb8c093b | 3563 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
3564 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3565 | ||
3566 | if (flags & HW_CARD_DISABLED) | |
3567 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3568 | else | |
3569 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3570 | ||
3571 | ||
3572 | if (flags & SW_CARD_DISABLED) | |
3573 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
3574 | else | |
3575 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
3576 | ||
bb8c093b | 3577 | iwl3945_scan_cancel(priv); |
b481de9c ZY |
3578 | |
3579 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
3580 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
3581 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
3582 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
3583 | queue_work(priv->workqueue, &priv->rf_kill); | |
3584 | else | |
3585 | wake_up_interruptible(&priv->wait_command_queue); | |
3586 | } | |
3587 | ||
3588 | /** | |
bb8c093b | 3589 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
3590 | * |
3591 | * Setup the RX handlers for each of the reply types sent from the uCode | |
3592 | * to the host. | |
3593 | * | |
3594 | * This function chains into the hardware specific files for them to setup | |
3595 | * any hardware specific handlers as well. | |
3596 | */ | |
bb8c093b | 3597 | static void iwl3945_setup_rx_handlers(struct iwl3945_priv *priv) |
b481de9c | 3598 | { |
bb8c093b CH |
3599 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
3600 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
3601 | priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error; | |
3602 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa; | |
b481de9c | 3603 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
3604 | iwl3945_rx_spectrum_measure_notif; |
3605 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif; | |
b481de9c | 3606 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
3607 | iwl3945_rx_pm_debug_statistics_notif; |
3608 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; | |
b481de9c | 3609 | |
9fbab516 BC |
3610 | /* |
3611 | * The same handler is used for both the REPLY to a discrete | |
3612 | * statistics request from the host as well as for the periodic | |
3613 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 3614 | */ |
bb8c093b CH |
3615 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
3616 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 3617 | |
bb8c093b CH |
3618 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan; |
3619 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif; | |
b481de9c | 3620 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 3621 | iwl3945_rx_scan_results_notif; |
b481de9c | 3622 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b CH |
3623 | iwl3945_rx_scan_complete_notif; |
3624 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; | |
3625 | priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx; | |
b481de9c | 3626 | |
9fbab516 | 3627 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 3628 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
3629 | } |
3630 | ||
3631 | /** | |
bb8c093b | 3632 | * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
3633 | * @rxb: Rx buffer to reclaim |
3634 | * | |
3635 | * If an Rx buffer has an async callback associated with it the callback | |
3636 | * will be executed. The attached skb (if present) will only be freed | |
3637 | * if the callback returns 1 | |
3638 | */ | |
bb8c093b CH |
3639 | static void iwl3945_tx_cmd_complete(struct iwl3945_priv *priv, |
3640 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 3641 | { |
bb8c093b | 3642 | struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3643 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
3644 | int txq_id = SEQ_TO_QUEUE(sequence); | |
3645 | int index = SEQ_TO_INDEX(sequence); | |
3646 | int huge = sequence & SEQ_HUGE_FRAME; | |
3647 | int cmd_index; | |
bb8c093b | 3648 | struct iwl3945_cmd *cmd; |
b481de9c ZY |
3649 | |
3650 | /* If a Tx command is being handled and it isn't in the actual | |
3651 | * command queue then there a command routing bug has been introduced | |
3652 | * in the queue management code. */ | |
3653 | if (txq_id != IWL_CMD_QUEUE_NUM) | |
3654 | IWL_ERROR("Error wrong command queue %d command id 0x%X\n", | |
3655 | txq_id, pkt->hdr.cmd); | |
3656 | BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); | |
3657 | ||
3658 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); | |
3659 | cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
3660 | ||
3661 | /* Input error checking is done when commands are added to queue. */ | |
3662 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
3663 | cmd->meta.source->u.skb = rxb->skb; | |
3664 | rxb->skb = NULL; | |
3665 | } else if (cmd->meta.u.callback && | |
3666 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
3667 | rxb->skb = NULL; | |
3668 | ||
bb8c093b | 3669 | iwl3945_tx_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
3670 | |
3671 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
3672 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
3673 | wake_up_interruptible(&priv->wait_command_queue); | |
3674 | } | |
3675 | } | |
3676 | ||
3677 | /************************** RX-FUNCTIONS ****************************/ | |
3678 | /* | |
3679 | * Rx theory of operation | |
3680 | * | |
3681 | * The host allocates 32 DMA target addresses and passes the host address | |
3682 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
3683 | * 0 to 31 | |
3684 | * | |
3685 | * Rx Queue Indexes | |
3686 | * The host/firmware share two index registers for managing the Rx buffers. | |
3687 | * | |
3688 | * The READ index maps to the first position that the firmware may be writing | |
3689 | * to -- the driver can read up to (but not including) this position and get | |
3690 | * good data. | |
3691 | * The READ index is managed by the firmware once the card is enabled. | |
3692 | * | |
3693 | * The WRITE index maps to the last position the driver has read from -- the | |
3694 | * position preceding WRITE is the last slot the firmware can place a packet. | |
3695 | * | |
3696 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
3697 | * WRITE = READ. | |
3698 | * | |
9fbab516 | 3699 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
3700 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
3701 | * | |
9fbab516 | 3702 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
3703 | * and fire the RX interrupt. The driver can then query the READ index and |
3704 | * process as many packets as possible, moving the WRITE index forward as it | |
3705 | * resets the Rx queue buffers with new memory. | |
3706 | * | |
3707 | * The management in the driver is as follows: | |
3708 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
3709 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 3710 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 3711 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
3712 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
3713 | * 'processed' and 'read' driver indexes as well) | |
3714 | * + A received packet is processed and handed to the kernel network stack, | |
3715 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
3716 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
3717 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
3718 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
3719 | * were enough free buffers and RX_STALLED is set it is cleared. | |
3720 | * | |
3721 | * | |
3722 | * Driver sequence: | |
3723 | * | |
9fbab516 BC |
3724 | * iwl3945_rx_queue_alloc() Allocates rx_free |
3725 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls | |
bb8c093b | 3726 | * iwl3945_rx_queue_restock |
9fbab516 | 3727 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
3728 | * queue, updates firmware pointers, and updates |
3729 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 3730 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
3731 | * |
3732 | * -- enable interrupts -- | |
9fbab516 | 3733 | * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the |
b481de9c ZY |
3734 | * READ INDEX, detaching the SKB from the pool. |
3735 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 3736 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
3737 | * slots. |
3738 | * ... | |
3739 | * | |
3740 | */ | |
3741 | ||
3742 | /** | |
bb8c093b | 3743 | * iwl3945_rx_queue_space - Return number of free slots available in queue. |
b481de9c | 3744 | */ |
bb8c093b | 3745 | static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue *q) |
b481de9c ZY |
3746 | { |
3747 | int s = q->read - q->write; | |
3748 | if (s <= 0) | |
3749 | s += RX_QUEUE_SIZE; | |
3750 | /* keep some buffer to not confuse full and empty queue */ | |
3751 | s -= 2; | |
3752 | if (s < 0) | |
3753 | s = 0; | |
3754 | return s; | |
3755 | } | |
3756 | ||
3757 | /** | |
bb8c093b | 3758 | * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue |
b481de9c | 3759 | */ |
bb8c093b | 3760 | int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv, struct iwl3945_rx_queue *q) |
b481de9c ZY |
3761 | { |
3762 | u32 reg = 0; | |
3763 | int rc = 0; | |
3764 | unsigned long flags; | |
3765 | ||
3766 | spin_lock_irqsave(&q->lock, flags); | |
3767 | ||
3768 | if (q->need_update == 0) | |
3769 | goto exit_unlock; | |
3770 | ||
6440adb5 | 3771 | /* If power-saving is in use, make sure device is awake */ |
b481de9c | 3772 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { |
bb8c093b | 3773 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
3774 | |
3775 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
bb8c093b | 3776 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
3777 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
3778 | goto exit_unlock; | |
3779 | } | |
3780 | ||
bb8c093b | 3781 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
3782 | if (rc) |
3783 | goto exit_unlock; | |
3784 | ||
6440adb5 | 3785 | /* Device expects a multiple of 8 */ |
bb8c093b | 3786 | iwl3945_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, |
b481de9c | 3787 | q->write & ~0x7); |
bb8c093b | 3788 | iwl3945_release_nic_access(priv); |
6440adb5 CB |
3789 | |
3790 | /* Else device is assumed to be awake */ | |
b481de9c | 3791 | } else |
6440adb5 | 3792 | /* Device expects a multiple of 8 */ |
bb8c093b | 3793 | iwl3945_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7); |
b481de9c ZY |
3794 | |
3795 | ||
3796 | q->need_update = 0; | |
3797 | ||
3798 | exit_unlock: | |
3799 | spin_unlock_irqrestore(&q->lock, flags); | |
3800 | return rc; | |
3801 | } | |
3802 | ||
3803 | /** | |
9fbab516 | 3804 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 3805 | */ |
bb8c093b | 3806 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv *priv, |
b481de9c ZY |
3807 | dma_addr_t dma_addr) |
3808 | { | |
3809 | return cpu_to_le32((u32)dma_addr); | |
3810 | } | |
3811 | ||
3812 | /** | |
bb8c093b | 3813 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 3814 | * |
9fbab516 | 3815 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 3816 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 3817 | * as we can, pulling from rx_free. |
b481de9c ZY |
3818 | * |
3819 | * This moves the 'write' index forward to catch up with 'processed', and | |
3820 | * also updates the memory address in the firmware to reference the new | |
3821 | * target buffer. | |
3822 | */ | |
bb8c093b | 3823 | static int iwl3945_rx_queue_restock(struct iwl3945_priv *priv) |
b481de9c | 3824 | { |
bb8c093b | 3825 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3826 | struct list_head *element; |
bb8c093b | 3827 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3828 | unsigned long flags; |
3829 | int write, rc; | |
3830 | ||
3831 | spin_lock_irqsave(&rxq->lock, flags); | |
3832 | write = rxq->write & ~0x7; | |
bb8c093b | 3833 | while ((iwl3945_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 3834 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 3835 | element = rxq->rx_free.next; |
bb8c093b | 3836 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
b481de9c | 3837 | list_del(element); |
6440adb5 CB |
3838 | |
3839 | /* Point to Rx buffer via next RBD in circular buffer */ | |
bb8c093b | 3840 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->dma_addr); |
b481de9c ZY |
3841 | rxq->queue[rxq->write] = rxb; |
3842 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
3843 | rxq->free_count--; | |
3844 | } | |
3845 | spin_unlock_irqrestore(&rxq->lock, flags); | |
3846 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
3847 | * refill it */ | |
3848 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
3849 | queue_work(priv->workqueue, &priv->rx_replenish); | |
3850 | ||
3851 | ||
6440adb5 CB |
3852 | /* If we've added more space for the firmware to place data, tell it. |
3853 | * Increment device's write pointer in multiples of 8. */ | |
b481de9c ZY |
3854 | if ((write != (rxq->write & ~0x7)) |
3855 | || (abs(rxq->write - rxq->read) > 7)) { | |
3856 | spin_lock_irqsave(&rxq->lock, flags); | |
3857 | rxq->need_update = 1; | |
3858 | spin_unlock_irqrestore(&rxq->lock, flags); | |
bb8c093b | 3859 | rc = iwl3945_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
3860 | if (rc) |
3861 | return rc; | |
3862 | } | |
3863 | ||
3864 | return 0; | |
3865 | } | |
3866 | ||
3867 | /** | |
bb8c093b | 3868 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
3869 | * |
3870 | * When moving to rx_free an SKB is allocated for the slot. | |
3871 | * | |
bb8c093b | 3872 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 3873 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 3874 | */ |
5c0eef96 | 3875 | static void iwl3945_rx_allocate(struct iwl3945_priv *priv) |
b481de9c | 3876 | { |
bb8c093b | 3877 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 3878 | struct list_head *element; |
bb8c093b | 3879 | struct iwl3945_rx_mem_buffer *rxb; |
b481de9c ZY |
3880 | unsigned long flags; |
3881 | spin_lock_irqsave(&rxq->lock, flags); | |
3882 | while (!list_empty(&rxq->rx_used)) { | |
3883 | element = rxq->rx_used.next; | |
bb8c093b | 3884 | rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list); |
6440adb5 CB |
3885 | |
3886 | /* Alloc a new receive buffer */ | |
b481de9c ZY |
3887 | rxb->skb = |
3888 | alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC); | |
3889 | if (!rxb->skb) { | |
3890 | if (net_ratelimit()) | |
3891 | printk(KERN_CRIT DRV_NAME | |
3892 | ": Can not allocate SKB buffers\n"); | |
3893 | /* We don't reschedule replenish work here -- we will | |
3894 | * call the restock method and if it still needs | |
3895 | * more buffers it will schedule replenish */ | |
3896 | break; | |
3897 | } | |
12342c47 ZY |
3898 | |
3899 | /* If radiotap head is required, reserve some headroom here. | |
3900 | * The physical head count is a variable rx_stats->phy_count. | |
3901 | * We reserve 4 bytes here. Plus these extra bytes, the | |
3902 | * headroom of the physical head should be enough for the | |
3903 | * radiotap head that iwl3945 supported. See iwl3945_rt. | |
3904 | */ | |
3905 | skb_reserve(rxb->skb, 4); | |
3906 | ||
b481de9c ZY |
3907 | priv->alloc_rxb_skb++; |
3908 | list_del(element); | |
6440adb5 CB |
3909 | |
3910 | /* Get physical address of RB/SKB */ | |
b481de9c ZY |
3911 | rxb->dma_addr = |
3912 | pci_map_single(priv->pci_dev, rxb->skb->data, | |
3913 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3914 | list_add_tail(&rxb->list, &rxq->rx_free); | |
3915 | rxq->free_count++; | |
3916 | } | |
3917 | spin_unlock_irqrestore(&rxq->lock, flags); | |
5c0eef96 MA |
3918 | } |
3919 | ||
3920 | /* | |
3921 | * this should be called while priv->lock is locked | |
3922 | */ | |
4fd1f841 | 3923 | static void __iwl3945_rx_replenish(void *data) |
5c0eef96 MA |
3924 | { |
3925 | struct iwl3945_priv *priv = data; | |
3926 | ||
3927 | iwl3945_rx_allocate(priv); | |
3928 | iwl3945_rx_queue_restock(priv); | |
3929 | } | |
3930 | ||
3931 | ||
3932 | void iwl3945_rx_replenish(void *data) | |
3933 | { | |
3934 | struct iwl3945_priv *priv = data; | |
3935 | unsigned long flags; | |
3936 | ||
3937 | iwl3945_rx_allocate(priv); | |
b481de9c ZY |
3938 | |
3939 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 3940 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
3941 | spin_unlock_irqrestore(&priv->lock, flags); |
3942 | } | |
3943 | ||
3944 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. | |
9fbab516 | 3945 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
b481de9c ZY |
3946 | * This free routine walks the list of POOL entries and if SKB is set to |
3947 | * non NULL it is unmapped and freed | |
3948 | */ | |
bb8c093b | 3949 | static void iwl3945_rx_queue_free(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3950 | { |
3951 | int i; | |
3952 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
3953 | if (rxq->pool[i].skb != NULL) { | |
3954 | pci_unmap_single(priv->pci_dev, | |
3955 | rxq->pool[i].dma_addr, | |
3956 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
3957 | dev_kfree_skb(rxq->pool[i].skb); | |
3958 | } | |
3959 | } | |
3960 | ||
3961 | pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, | |
3962 | rxq->dma_addr); | |
3963 | rxq->bd = NULL; | |
3964 | } | |
3965 | ||
bb8c093b | 3966 | int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv) |
b481de9c | 3967 | { |
bb8c093b | 3968 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
3969 | struct pci_dev *dev = priv->pci_dev; |
3970 | int i; | |
3971 | ||
3972 | spin_lock_init(&rxq->lock); | |
3973 | INIT_LIST_HEAD(&rxq->rx_free); | |
3974 | INIT_LIST_HEAD(&rxq->rx_used); | |
6440adb5 CB |
3975 | |
3976 | /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ | |
b481de9c ZY |
3977 | rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr); |
3978 | if (!rxq->bd) | |
3979 | return -ENOMEM; | |
6440adb5 | 3980 | |
b481de9c ZY |
3981 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
3982 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) | |
3983 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
6440adb5 | 3984 | |
b481de9c ZY |
3985 | /* Set us so that we have processed and used all buffers, but have |
3986 | * not restocked the Rx queue with fresh buffers */ | |
3987 | rxq->read = rxq->write = 0; | |
3988 | rxq->free_count = 0; | |
3989 | rxq->need_update = 0; | |
3990 | return 0; | |
3991 | } | |
3992 | ||
bb8c093b | 3993 | void iwl3945_rx_queue_reset(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
3994 | { |
3995 | unsigned long flags; | |
3996 | int i; | |
3997 | spin_lock_irqsave(&rxq->lock, flags); | |
3998 | INIT_LIST_HEAD(&rxq->rx_free); | |
3999 | INIT_LIST_HEAD(&rxq->rx_used); | |
4000 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
4001 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
4002 | /* In the reset function, these buffers may have been allocated | |
4003 | * to an SKB, so we need to unmap and free potential storage */ | |
4004 | if (rxq->pool[i].skb != NULL) { | |
4005 | pci_unmap_single(priv->pci_dev, | |
4006 | rxq->pool[i].dma_addr, | |
4007 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
4008 | priv->alloc_rxb_skb--; | |
4009 | dev_kfree_skb(rxq->pool[i].skb); | |
4010 | rxq->pool[i].skb = NULL; | |
4011 | } | |
4012 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
4013 | } | |
4014 | ||
4015 | /* Set us so that we have processed and used all buffers, but have | |
4016 | * not restocked the Rx queue with fresh buffers */ | |
4017 | rxq->read = rxq->write = 0; | |
4018 | rxq->free_count = 0; | |
4019 | spin_unlock_irqrestore(&rxq->lock, flags); | |
4020 | } | |
4021 | ||
4022 | /* Convert linear signal-to-noise ratio into dB */ | |
4023 | static u8 ratio2dB[100] = { | |
4024 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
4025 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
4026 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
4027 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
4028 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
4029 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
4030 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
4031 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
4032 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
4033 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
4034 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
4035 | }; | |
4036 | ||
4037 | /* Calculates a relative dB value from a ratio of linear | |
4038 | * (i.e. not dB) signal levels. | |
4039 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 4040 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 4041 | { |
221c80cf AB |
4042 | /* 1000:1 or higher just report as 60 dB */ |
4043 | if (sig_ratio >= 1000) | |
b481de9c ZY |
4044 | return 60; |
4045 | ||
221c80cf | 4046 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 4047 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 4048 | if (sig_ratio >= 100) |
b481de9c ZY |
4049 | return (20 + (int)ratio2dB[sig_ratio/10]); |
4050 | ||
4051 | /* We shouldn't see this */ | |
4052 | if (sig_ratio < 1) | |
4053 | return 0; | |
4054 | ||
4055 | /* Use table for ratios 1:1 - 99:1 */ | |
4056 | return (int)ratio2dB[sig_ratio]; | |
4057 | } | |
4058 | ||
4059 | #define PERFECT_RSSI (-20) /* dBm */ | |
4060 | #define WORST_RSSI (-95) /* dBm */ | |
4061 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
4062 | ||
4063 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
4064 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
4065 | * about formulas used below. */ | |
bb8c093b | 4066 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
b481de9c ZY |
4067 | { |
4068 | int sig_qual; | |
4069 | int degradation = PERFECT_RSSI - rssi_dbm; | |
4070 | ||
4071 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
4072 | * as indicator; formula is (signal dbm - noise dbm). | |
4073 | * SNR at or above 40 is a great signal (100%). | |
4074 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
4075 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
4076 | if (noise_dbm) { | |
4077 | if (rssi_dbm - noise_dbm >= 40) | |
4078 | return 100; | |
4079 | else if (rssi_dbm < noise_dbm) | |
4080 | return 0; | |
4081 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
4082 | ||
4083 | /* Else use just the signal level. | |
4084 | * This formula is a least squares fit of data points collected and | |
4085 | * compared with a reference system that had a percentage (%) display | |
4086 | * for signal quality. */ | |
4087 | } else | |
4088 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
4089 | (15 * RSSI_RANGE + 62 * degradation)) / | |
4090 | (RSSI_RANGE * RSSI_RANGE); | |
4091 | ||
4092 | if (sig_qual > 100) | |
4093 | sig_qual = 100; | |
4094 | else if (sig_qual < 1) | |
4095 | sig_qual = 0; | |
4096 | ||
4097 | return sig_qual; | |
4098 | } | |
4099 | ||
4100 | /** | |
9fbab516 | 4101 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
4102 | * |
4103 | * Uses the priv->rx_handlers callback function array to invoke | |
4104 | * the appropriate handlers, including command responses, | |
4105 | * frame-received notifications, and other notifications. | |
4106 | */ | |
bb8c093b | 4107 | static void iwl3945_rx_handle(struct iwl3945_priv *priv) |
b481de9c | 4108 | { |
bb8c093b CH |
4109 | struct iwl3945_rx_mem_buffer *rxb; |
4110 | struct iwl3945_rx_packet *pkt; | |
4111 | struct iwl3945_rx_queue *rxq = &priv->rxq; | |
b481de9c ZY |
4112 | u32 r, i; |
4113 | int reclaim; | |
4114 | unsigned long flags; | |
5c0eef96 | 4115 | u8 fill_rx = 0; |
d68ab680 | 4116 | u32 count = 8; |
b481de9c | 4117 | |
6440adb5 CB |
4118 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
4119 | * buffer that the driver may process (last buffer filled by ucode). */ | |
bb8c093b | 4120 | r = iwl3945_hw_get_rx_read(priv); |
b481de9c ZY |
4121 | i = rxq->read; |
4122 | ||
5c0eef96 MA |
4123 | if (iwl3945_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
4124 | fill_rx = 1; | |
b481de9c ZY |
4125 | /* Rx interrupt, but nothing sent from uCode */ |
4126 | if (i == r) | |
4127 | IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i); | |
4128 | ||
4129 | while (i != r) { | |
4130 | rxb = rxq->queue[i]; | |
4131 | ||
9fbab516 | 4132 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
4133 | * then a bug has been introduced in the queue refilling |
4134 | * routines -- catch it here */ | |
4135 | BUG_ON(rxb == NULL); | |
4136 | ||
4137 | rxq->queue[i] = NULL; | |
4138 | ||
4139 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
4140 | IWL_RX_BUF_SIZE, | |
4141 | PCI_DMA_FROMDEVICE); | |
bb8c093b | 4142 | pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
b481de9c ZY |
4143 | |
4144 | /* Reclaim a command buffer only if this packet is a response | |
4145 | * to a (driver-originated) command. | |
4146 | * If the packet (e.g. Rx frame) originated from uCode, | |
4147 | * there is no command buffer to reclaim. | |
4148 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
4149 | * but apparently a few don't get set; catch them here. */ | |
4150 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
4151 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
4152 | (pkt->hdr.cmd != REPLY_TX); | |
4153 | ||
4154 | /* Based on type of command response or notification, | |
4155 | * handle those that need handling via function in | |
bb8c093b | 4156 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c ZY |
4157 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
4158 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
4159 | "r = %d, i = %d, %s, 0x%02x\n", r, i, | |
4160 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
4161 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); | |
4162 | } else { | |
4163 | /* No handling needed */ | |
4164 | IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR, | |
4165 | "r %d i %d No handler needed for %s, 0x%02x\n", | |
4166 | r, i, get_cmd_string(pkt->hdr.cmd), | |
4167 | pkt->hdr.cmd); | |
4168 | } | |
4169 | ||
4170 | if (reclaim) { | |
9fbab516 BC |
4171 | /* Invoke any callbacks, transfer the skb to caller, and |
4172 | * fire off the (possibly) blocking iwl3945_send_cmd() | |
b481de9c ZY |
4173 | * as we reclaim the driver command queue */ |
4174 | if (rxb && rxb->skb) | |
bb8c093b | 4175 | iwl3945_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
4176 | else |
4177 | IWL_WARNING("Claim null rxb?\n"); | |
4178 | } | |
4179 | ||
4180 | /* For now we just don't re-use anything. We can tweak this | |
4181 | * later to try and re-use notification packets and SKBs that | |
4182 | * fail to Rx correctly */ | |
4183 | if (rxb->skb != NULL) { | |
4184 | priv->alloc_rxb_skb--; | |
4185 | dev_kfree_skb_any(rxb->skb); | |
4186 | rxb->skb = NULL; | |
4187 | } | |
4188 | ||
4189 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
4190 | IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
4191 | spin_lock_irqsave(&rxq->lock, flags); | |
4192 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
4193 | spin_unlock_irqrestore(&rxq->lock, flags); | |
4194 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
4195 | /* If there are a lot of unused frames, |
4196 | * restock the Rx queue so ucode won't assert. */ | |
4197 | if (fill_rx) { | |
4198 | count++; | |
4199 | if (count >= 8) { | |
4200 | priv->rxq.read = i; | |
4201 | __iwl3945_rx_replenish(priv); | |
4202 | count = 0; | |
4203 | } | |
4204 | } | |
b481de9c ZY |
4205 | } |
4206 | ||
4207 | /* Backtrack one entry */ | |
4208 | priv->rxq.read = i; | |
bb8c093b | 4209 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
4210 | } |
4211 | ||
6440adb5 CB |
4212 | /** |
4213 | * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware | |
4214 | */ | |
bb8c093b CH |
4215 | static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv, |
4216 | struct iwl3945_tx_queue *txq) | |
b481de9c ZY |
4217 | { |
4218 | u32 reg = 0; | |
4219 | int rc = 0; | |
4220 | int txq_id = txq->q.id; | |
4221 | ||
4222 | if (txq->need_update == 0) | |
4223 | return rc; | |
4224 | ||
4225 | /* if we're trying to save power */ | |
4226 | if (test_bit(STATUS_POWER_PMI, &priv->status)) { | |
4227 | /* wake up nic if it's powered down ... | |
4228 | * uCode will wake up, and interrupt us again, so next | |
4229 | * time we'll skip this part. */ | |
bb8c093b | 4230 | reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1); |
b481de9c ZY |
4231 | |
4232 | if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { | |
4233 | IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg); | |
bb8c093b | 4234 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
4235 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
4236 | return rc; | |
4237 | } | |
4238 | ||
4239 | /* restore this queue's parameters in nic hardware. */ | |
bb8c093b | 4240 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4241 | if (rc) |
4242 | return rc; | |
bb8c093b | 4243 | iwl3945_write_direct32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 4244 | txq->q.write_ptr | (txq_id << 8)); |
bb8c093b | 4245 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4246 | |
4247 | /* else not in power-save mode, uCode will never sleep when we're | |
4248 | * trying to tx (during RFKILL, we're not trying to tx). */ | |
4249 | } else | |
bb8c093b | 4250 | iwl3945_write32(priv, HBUS_TARG_WRPTR, |
fc4b6853 | 4251 | txq->q.write_ptr | (txq_id << 8)); |
b481de9c ZY |
4252 | |
4253 | txq->need_update = 0; | |
4254 | ||
4255 | return rc; | |
4256 | } | |
4257 | ||
c8b0e6e1 | 4258 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4259 | static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd *rxon) |
b481de9c | 4260 | { |
0795af57 JP |
4261 | DECLARE_MAC_BUF(mac); |
4262 | ||
b481de9c | 4263 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bb8c093b | 4264 | iwl3945_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
4265 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
4266 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
4267 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
4268 | le32_to_cpu(rxon->filter_flags)); | |
4269 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
4270 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
4271 | rxon->ofdm_basic_rates); | |
4272 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
0795af57 JP |
4273 | IWL_DEBUG_RADIO("u8[6] node_addr: %s\n", |
4274 | print_mac(mac, rxon->node_addr)); | |
4275 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n", | |
4276 | print_mac(mac, rxon->bssid_addr)); | |
b481de9c ZY |
4277 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
4278 | } | |
4279 | #endif | |
4280 | ||
bb8c093b | 4281 | static void iwl3945_enable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
4282 | { |
4283 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
4284 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
bb8c093b | 4285 | iwl3945_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
4286 | } |
4287 | ||
bb8c093b | 4288 | static inline void iwl3945_disable_interrupts(struct iwl3945_priv *priv) |
b481de9c ZY |
4289 | { |
4290 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
4291 | ||
4292 | /* disable interrupts from uCode/NIC to host */ | |
bb8c093b | 4293 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
4294 | |
4295 | /* acknowledge/clear/reset any interrupts still pending | |
4296 | * from uCode or flow handler (Rx/Tx DMA) */ | |
bb8c093b CH |
4297 | iwl3945_write32(priv, CSR_INT, 0xffffffff); |
4298 | iwl3945_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
4299 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
4300 | } | |
4301 | ||
4302 | static const char *desc_lookup(int i) | |
4303 | { | |
4304 | switch (i) { | |
4305 | case 1: | |
4306 | return "FAIL"; | |
4307 | case 2: | |
4308 | return "BAD_PARAM"; | |
4309 | case 3: | |
4310 | return "BAD_CHECKSUM"; | |
4311 | case 4: | |
4312 | return "NMI_INTERRUPT"; | |
4313 | case 5: | |
4314 | return "SYSASSERT"; | |
4315 | case 6: | |
4316 | return "FATAL_ERROR"; | |
4317 | } | |
4318 | ||
4319 | return "UNKNOWN"; | |
4320 | } | |
4321 | ||
4322 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
4323 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
4324 | ||
bb8c093b | 4325 | static void iwl3945_dump_nic_error_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4326 | { |
4327 | u32 i; | |
4328 | u32 desc, time, count, base, data1; | |
4329 | u32 blink1, blink2, ilink1, ilink2; | |
4330 | int rc; | |
4331 | ||
4332 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
4333 | ||
bb8c093b | 4334 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4335 | IWL_ERROR("Not valid error log pointer 0x%08X\n", base); |
4336 | return; | |
4337 | } | |
4338 | ||
bb8c093b | 4339 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4340 | if (rc) { |
4341 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4342 | return; | |
4343 | } | |
4344 | ||
bb8c093b | 4345 | count = iwl3945_read_targ_mem(priv, base); |
b481de9c ZY |
4346 | |
4347 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
4348 | IWL_ERROR("Start IWL Error Log Dump:\n"); | |
2acae16e | 4349 | IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); |
b481de9c ZY |
4350 | } |
4351 | ||
4352 | IWL_ERROR("Desc Time asrtPC blink2 " | |
4353 | "ilink1 nmiPC Line\n"); | |
4354 | for (i = ERROR_START_OFFSET; | |
4355 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
4356 | i += ERROR_ELEM_SIZE) { | |
bb8c093b | 4357 | desc = iwl3945_read_targ_mem(priv, base + i); |
b481de9c | 4358 | time = |
bb8c093b | 4359 | iwl3945_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 4360 | blink1 = |
bb8c093b | 4361 | iwl3945_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 4362 | blink2 = |
bb8c093b | 4363 | iwl3945_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 4364 | ilink1 = |
bb8c093b | 4365 | iwl3945_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 4366 | ilink2 = |
bb8c093b | 4367 | iwl3945_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 4368 | data1 = |
bb8c093b | 4369 | iwl3945_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c ZY |
4370 | |
4371 | IWL_ERROR | |
4372 | ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
4373 | desc_lookup(desc), desc, time, blink1, blink2, | |
4374 | ilink1, ilink2, data1); | |
4375 | } | |
4376 | ||
bb8c093b | 4377 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4378 | |
4379 | } | |
4380 | ||
f58177b9 | 4381 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
4382 | |
4383 | /** | |
bb8c093b | 4384 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 4385 | * |
bb8c093b | 4386 | * NOTE: Must be called with iwl3945_grab_nic_access() already obtained! |
b481de9c | 4387 | */ |
bb8c093b | 4388 | static void iwl3945_print_event_log(struct iwl3945_priv *priv, u32 start_idx, |
b481de9c ZY |
4389 | u32 num_events, u32 mode) |
4390 | { | |
4391 | u32 i; | |
4392 | u32 base; /* SRAM byte address of event log header */ | |
4393 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
4394 | u32 ptr; /* SRAM byte address of log data */ | |
4395 | u32 ev, time, data; /* event log data */ | |
4396 | ||
4397 | if (num_events == 0) | |
4398 | return; | |
4399 | ||
4400 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
4401 | ||
4402 | if (mode == 0) | |
4403 | event_size = 2 * sizeof(u32); | |
4404 | else | |
4405 | event_size = 3 * sizeof(u32); | |
4406 | ||
4407 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
4408 | ||
4409 | /* "time" is actually "data" for mode 0 (no timestamp). | |
4410 | * place event id # at far right for easier visual parsing. */ | |
4411 | for (i = 0; i < num_events; i++) { | |
bb8c093b | 4412 | ev = iwl3945_read_targ_mem(priv, ptr); |
b481de9c | 4413 | ptr += sizeof(u32); |
bb8c093b | 4414 | time = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4415 | ptr += sizeof(u32); |
4416 | if (mode == 0) | |
4417 | IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */ | |
4418 | else { | |
bb8c093b | 4419 | data = iwl3945_read_targ_mem(priv, ptr); |
b481de9c ZY |
4420 | ptr += sizeof(u32); |
4421 | IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev); | |
4422 | } | |
4423 | } | |
4424 | } | |
4425 | ||
bb8c093b | 4426 | static void iwl3945_dump_nic_event_log(struct iwl3945_priv *priv) |
b481de9c ZY |
4427 | { |
4428 | int rc; | |
4429 | u32 base; /* SRAM byte address of event log header */ | |
4430 | u32 capacity; /* event log capacity in # entries */ | |
4431 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
4432 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
4433 | u32 next_entry; /* index of next entry to be written by uCode */ | |
4434 | u32 size; /* # entries that we'll print */ | |
4435 | ||
4436 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 4437 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
4438 | IWL_ERROR("Invalid event log pointer 0x%08X\n", base); |
4439 | return; | |
4440 | } | |
4441 | ||
bb8c093b | 4442 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
4443 | if (rc) { |
4444 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
4445 | return; | |
4446 | } | |
4447 | ||
4448 | /* event log header */ | |
bb8c093b CH |
4449 | capacity = iwl3945_read_targ_mem(priv, base); |
4450 | mode = iwl3945_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
4451 | num_wraps = iwl3945_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
4452 | next_entry = iwl3945_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c ZY |
4453 | |
4454 | size = num_wraps ? capacity : next_entry; | |
4455 | ||
4456 | /* bail out if nothing in log */ | |
4457 | if (size == 0) { | |
583fab37 | 4458 | IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); |
bb8c093b | 4459 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4460 | return; |
4461 | } | |
4462 | ||
583fab37 | 4463 | IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", |
b481de9c ZY |
4464 | size, num_wraps); |
4465 | ||
4466 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
4467 | * i.e the next one that uCode would fill. */ | |
4468 | if (num_wraps) | |
bb8c093b | 4469 | iwl3945_print_event_log(priv, next_entry, |
b481de9c ZY |
4470 | capacity - next_entry, mode); |
4471 | ||
4472 | /* (then/else) start at top of log */ | |
bb8c093b | 4473 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
b481de9c | 4474 | |
bb8c093b | 4475 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4476 | } |
4477 | ||
4478 | /** | |
bb8c093b | 4479 | * iwl3945_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 4480 | */ |
bb8c093b | 4481 | static void iwl3945_irq_handle_error(struct iwl3945_priv *priv) |
b481de9c | 4482 | { |
bb8c093b | 4483 | /* Set the FW error flag -- cleared on iwl3945_down */ |
b481de9c ZY |
4484 | set_bit(STATUS_FW_ERROR, &priv->status); |
4485 | ||
4486 | /* Cancel currently queued command. */ | |
4487 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
4488 | ||
c8b0e6e1 | 4489 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4490 | if (iwl3945_debug_level & IWL_DL_FW_ERRORS) { |
4491 | iwl3945_dump_nic_error_log(priv); | |
4492 | iwl3945_dump_nic_event_log(priv); | |
4493 | iwl3945_print_rx_config_cmd(&priv->staging_rxon); | |
b481de9c ZY |
4494 | } |
4495 | #endif | |
4496 | ||
4497 | wake_up_interruptible(&priv->wait_command_queue); | |
4498 | ||
4499 | /* Keep the restart process from trying to send host | |
4500 | * commands by clearing the INIT status bit */ | |
4501 | clear_bit(STATUS_READY, &priv->status); | |
4502 | ||
4503 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
4504 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS, | |
4505 | "Restarting adapter due to uCode error.\n"); | |
4506 | ||
bb8c093b | 4507 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
4508 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
4509 | sizeof(priv->recovery_rxon)); | |
4510 | priv->error_recovering = 1; | |
4511 | } | |
4512 | queue_work(priv->workqueue, &priv->restart); | |
4513 | } | |
4514 | } | |
4515 | ||
bb8c093b | 4516 | static void iwl3945_error_recovery(struct iwl3945_priv *priv) |
b481de9c ZY |
4517 | { |
4518 | unsigned long flags; | |
4519 | ||
4520 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
4521 | sizeof(priv->staging_rxon)); | |
4522 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4523 | iwl3945_commit_rxon(priv); |
b481de9c | 4524 | |
bb8c093b | 4525 | iwl3945_add_station(priv, priv->bssid, 1, 0); |
b481de9c ZY |
4526 | |
4527 | spin_lock_irqsave(&priv->lock, flags); | |
4528 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
4529 | priv->error_recovering = 0; | |
4530 | spin_unlock_irqrestore(&priv->lock, flags); | |
4531 | } | |
4532 | ||
bb8c093b | 4533 | static void iwl3945_irq_tasklet(struct iwl3945_priv *priv) |
b481de9c ZY |
4534 | { |
4535 | u32 inta, handled = 0; | |
4536 | u32 inta_fh; | |
4537 | unsigned long flags; | |
c8b0e6e1 | 4538 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
4539 | u32 inta_mask; |
4540 | #endif | |
4541 | ||
4542 | spin_lock_irqsave(&priv->lock, flags); | |
4543 | ||
4544 | /* Ack/clear/reset pending uCode interrupts. | |
4545 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
4546 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
bb8c093b CH |
4547 | inta = iwl3945_read32(priv, CSR_INT); |
4548 | iwl3945_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
4549 | |
4550 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
4551 | * Any new interrupts that happen after this, either while we're | |
4552 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
bb8c093b CH |
4553 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); |
4554 | iwl3945_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 4555 | |
c8b0e6e1 | 4556 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4557 | if (iwl3945_debug_level & IWL_DL_ISR) { |
9fbab516 BC |
4558 | /* just for debug */ |
4559 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
b481de9c ZY |
4560 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
4561 | inta, inta_mask, inta_fh); | |
4562 | } | |
4563 | #endif | |
4564 | ||
4565 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
4566 | * atomic, make sure that inta covers all the interrupts that | |
4567 | * we've discovered, even if FH interrupt came in just after | |
4568 | * reading CSR_INT. */ | |
6f83eaa1 | 4569 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 4570 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 4571 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
4572 | inta |= CSR_INT_BIT_FH_TX; |
4573 | ||
4574 | /* Now service all interrupt bits discovered above. */ | |
4575 | if (inta & CSR_INT_BIT_HW_ERR) { | |
4576 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
4577 | ||
4578 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 4579 | iwl3945_disable_interrupts(priv); |
b481de9c | 4580 | |
bb8c093b | 4581 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4582 | |
4583 | handled |= CSR_INT_BIT_HW_ERR; | |
4584 | ||
4585 | spin_unlock_irqrestore(&priv->lock, flags); | |
4586 | ||
4587 | return; | |
4588 | } | |
4589 | ||
c8b0e6e1 | 4590 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 4591 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
b481de9c | 4592 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
4593 | if (inta & CSR_INT_BIT_SCD) |
4594 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
4595 | "the frame/frames.\n"); | |
b481de9c ZY |
4596 | |
4597 | /* Alive notification via Rx interrupt will do the real work */ | |
4598 | if (inta & CSR_INT_BIT_ALIVE) | |
4599 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
4600 | } | |
4601 | #endif | |
4602 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 4603 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c ZY |
4604 | |
4605 | /* HW RF KILL switch toggled (4965 only) */ | |
4606 | if (inta & CSR_INT_BIT_RF_KILL) { | |
4607 | int hw_rf_kill = 0; | |
bb8c093b | 4608 | if (!(iwl3945_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
4609 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
4610 | hw_rf_kill = 1; | |
4611 | ||
4612 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR, | |
4613 | "RF_KILL bit toggled to %s.\n", | |
4614 | hw_rf_kill ? "disable radio":"enable radio"); | |
4615 | ||
4616 | /* Queue restart only if RF_KILL switch was set to "kill" | |
4617 | * when we loaded driver, and is now set to "enable". | |
4618 | * After we're Alive, RF_KILL gets handled by | |
3230455d | 4619 | * iwl3945_rx_card_state_notif() */ |
53e49093 ZY |
4620 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) { |
4621 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
b481de9c | 4622 | queue_work(priv->workqueue, &priv->restart); |
53e49093 | 4623 | } |
b481de9c ZY |
4624 | |
4625 | handled |= CSR_INT_BIT_RF_KILL; | |
4626 | } | |
4627 | ||
4628 | /* Chip got too hot and stopped itself (4965 only) */ | |
4629 | if (inta & CSR_INT_BIT_CT_KILL) { | |
4630 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
4631 | handled |= CSR_INT_BIT_CT_KILL; | |
4632 | } | |
4633 | ||
4634 | /* Error detected by uCode */ | |
4635 | if (inta & CSR_INT_BIT_SW_ERR) { | |
4636 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
4637 | inta); | |
bb8c093b | 4638 | iwl3945_irq_handle_error(priv); |
b481de9c ZY |
4639 | handled |= CSR_INT_BIT_SW_ERR; |
4640 | } | |
4641 | ||
4642 | /* uCode wakes up after power-down sleep */ | |
4643 | if (inta & CSR_INT_BIT_WAKEUP) { | |
4644 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
bb8c093b CH |
4645 | iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq); |
4646 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]); | |
4647 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]); | |
4648 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]); | |
4649 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]); | |
4650 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]); | |
4651 | iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
4652 | |
4653 | handled |= CSR_INT_BIT_WAKEUP; | |
4654 | } | |
4655 | ||
4656 | /* All uCode command responses, including Tx command responses, | |
4657 | * Rx "responses" (frame-received notification), and other | |
4658 | * notifications from uCode come through here*/ | |
4659 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 4660 | iwl3945_rx_handle(priv); |
b481de9c ZY |
4661 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
4662 | } | |
4663 | ||
4664 | if (inta & CSR_INT_BIT_FH_TX) { | |
4665 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
4666 | ||
bb8c093b CH |
4667 | iwl3945_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
4668 | if (!iwl3945_grab_nic_access(priv)) { | |
4669 | iwl3945_write_direct32(priv, | |
b481de9c ZY |
4670 | FH_TCSR_CREDIT |
4671 | (ALM_FH_SRVC_CHNL), 0x0); | |
bb8c093b | 4672 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
4673 | } |
4674 | handled |= CSR_INT_BIT_FH_TX; | |
4675 | } | |
4676 | ||
4677 | if (inta & ~handled) | |
4678 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
4679 | ||
4680 | if (inta & ~CSR_INI_SET_MASK) { | |
4681 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
4682 | inta & ~CSR_INI_SET_MASK); | |
4683 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
4684 | } | |
4685 | ||
4686 | /* Re-enable all interrupts */ | |
bb8c093b | 4687 | iwl3945_enable_interrupts(priv); |
b481de9c | 4688 | |
c8b0e6e1 | 4689 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b CH |
4690 | if (iwl3945_debug_level & (IWL_DL_ISR)) { |
4691 | inta = iwl3945_read32(priv, CSR_INT); | |
4692 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); | |
4693 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4694 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
4695 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
4696 | } | |
4697 | #endif | |
4698 | spin_unlock_irqrestore(&priv->lock, flags); | |
4699 | } | |
4700 | ||
bb8c093b | 4701 | static irqreturn_t iwl3945_isr(int irq, void *data) |
b481de9c | 4702 | { |
bb8c093b | 4703 | struct iwl3945_priv *priv = data; |
b481de9c ZY |
4704 | u32 inta, inta_mask; |
4705 | u32 inta_fh; | |
4706 | if (!priv) | |
4707 | return IRQ_NONE; | |
4708 | ||
4709 | spin_lock(&priv->lock); | |
4710 | ||
4711 | /* Disable (but don't clear!) interrupts here to avoid | |
4712 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
4713 | * If we have something to service, the tasklet will re-enable ints. | |
4714 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
bb8c093b CH |
4715 | inta_mask = iwl3945_read32(priv, CSR_INT_MASK); /* just for debug */ |
4716 | iwl3945_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
4717 | |
4718 | /* Discover which interrupts are active/pending */ | |
bb8c093b CH |
4719 | inta = iwl3945_read32(priv, CSR_INT); |
4720 | inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
4721 | |
4722 | /* Ignore interrupt if there's nothing in NIC to service. | |
4723 | * This may be due to IRQ shared with another device, | |
4724 | * or due to sporadic interrupts thrown from our NIC. */ | |
4725 | if (!inta && !inta_fh) { | |
4726 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
4727 | goto none; | |
4728 | } | |
4729 | ||
4730 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
4731 | /* Hardware disappeared */ | |
4732 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); | |
cb4da1a3 | 4733 | goto unplugged; |
b481de9c ZY |
4734 | } |
4735 | ||
4736 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
4737 | inta, inta_mask, inta_fh); | |
4738 | ||
25c03d8e JP |
4739 | inta &= ~CSR_INT_BIT_SCD; |
4740 | ||
bb8c093b | 4741 | /* iwl3945_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
4742 | if (likely(inta || inta_fh)) |
4743 | tasklet_schedule(&priv->irq_tasklet); | |
cb4da1a3 | 4744 | unplugged: |
b481de9c ZY |
4745 | spin_unlock(&priv->lock); |
4746 | ||
4747 | return IRQ_HANDLED; | |
4748 | ||
4749 | none: | |
4750 | /* re-enable interrupts here since we don't have anything to service. */ | |
bb8c093b | 4751 | iwl3945_enable_interrupts(priv); |
b481de9c ZY |
4752 | spin_unlock(&priv->lock); |
4753 | return IRQ_NONE; | |
4754 | } | |
4755 | ||
4756 | /************************** EEPROM BANDS **************************** | |
4757 | * | |
bb8c093b | 4758 | * The iwl3945_eeprom_band definitions below provide the mapping from the |
b481de9c ZY |
4759 | * EEPROM contents to the specific channel number supported for each |
4760 | * band. | |
4761 | * | |
bb8c093b | 4762 | * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3 |
b481de9c ZY |
4763 | * definition below maps to physical channel 42 in the 5.2GHz spectrum. |
4764 | * The specific geography and calibration information for that channel | |
4765 | * is contained in the eeprom map itself. | |
4766 | * | |
4767 | * During init, we copy the eeprom information and channel map | |
4768 | * information into priv->channel_info_24/52 and priv->channel_map_24/52 | |
4769 | * | |
4770 | * channel_map_24/52 provides the index in the channel_info array for a | |
4771 | * given channel. We have to have two separate maps as there is channel | |
4772 | * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and | |
4773 | * band_2 | |
4774 | * | |
4775 | * A value of 0xff stored in the channel_map indicates that the channel | |
4776 | * is not supported by the hardware at all. | |
4777 | * | |
4778 | * A value of 0xfe in the channel_map indicates that the channel is not | |
4779 | * valid for Tx with the current hardware. This means that | |
4780 | * while the system can tune and receive on a given channel, it may not | |
4781 | * be able to associate or transmit any frames on that | |
4782 | * channel. There is no corresponding channel information for that | |
4783 | * entry. | |
4784 | * | |
4785 | *********************************************************************/ | |
4786 | ||
4787 | /* 2.4 GHz */ | |
bb8c093b | 4788 | static const u8 iwl3945_eeprom_band_1[14] = { |
b481de9c ZY |
4789 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
4790 | }; | |
4791 | ||
4792 | /* 5.2 GHz bands */ | |
9fbab516 | 4793 | static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */ |
b481de9c ZY |
4794 | 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
4795 | }; | |
4796 | ||
9fbab516 | 4797 | static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */ |
b481de9c ZY |
4798 | 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
4799 | }; | |
4800 | ||
bb8c093b | 4801 | static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */ |
b481de9c ZY |
4802 | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
4803 | }; | |
4804 | ||
bb8c093b | 4805 | static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */ |
b481de9c ZY |
4806 | 145, 149, 153, 157, 161, 165 |
4807 | }; | |
4808 | ||
bb8c093b | 4809 | static void iwl3945_init_band_reference(const struct iwl3945_priv *priv, int band, |
b481de9c | 4810 | int *eeprom_ch_count, |
bb8c093b | 4811 | const struct iwl3945_eeprom_channel |
b481de9c ZY |
4812 | **eeprom_ch_info, |
4813 | const u8 **eeprom_ch_index) | |
4814 | { | |
4815 | switch (band) { | |
4816 | case 1: /* 2.4GHz band */ | |
bb8c093b | 4817 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1); |
b481de9c | 4818 | *eeprom_ch_info = priv->eeprom.band_1_channels; |
bb8c093b | 4819 | *eeprom_ch_index = iwl3945_eeprom_band_1; |
b481de9c | 4820 | break; |
9fbab516 | 4821 | case 2: /* 4.9GHz band */ |
bb8c093b | 4822 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2); |
b481de9c | 4823 | *eeprom_ch_info = priv->eeprom.band_2_channels; |
bb8c093b | 4824 | *eeprom_ch_index = iwl3945_eeprom_band_2; |
b481de9c ZY |
4825 | break; |
4826 | case 3: /* 5.2GHz band */ | |
bb8c093b | 4827 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3); |
b481de9c | 4828 | *eeprom_ch_info = priv->eeprom.band_3_channels; |
bb8c093b | 4829 | *eeprom_ch_index = iwl3945_eeprom_band_3; |
b481de9c | 4830 | break; |
9fbab516 | 4831 | case 4: /* 5.5GHz band */ |
bb8c093b | 4832 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4); |
b481de9c | 4833 | *eeprom_ch_info = priv->eeprom.band_4_channels; |
bb8c093b | 4834 | *eeprom_ch_index = iwl3945_eeprom_band_4; |
b481de9c | 4835 | break; |
9fbab516 | 4836 | case 5: /* 5.7GHz band */ |
bb8c093b | 4837 | *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5); |
b481de9c | 4838 | *eeprom_ch_info = priv->eeprom.band_5_channels; |
bb8c093b | 4839 | *eeprom_ch_index = iwl3945_eeprom_band_5; |
b481de9c ZY |
4840 | break; |
4841 | default: | |
4842 | BUG(); | |
4843 | return; | |
4844 | } | |
4845 | } | |
4846 | ||
6440adb5 CB |
4847 | /** |
4848 | * iwl3945_get_channel_info - Find driver's private channel info | |
4849 | * | |
4850 | * Based on band and channel number. | |
4851 | */ | |
bb8c093b | 4852 | const struct iwl3945_channel_info *iwl3945_get_channel_info(const struct iwl3945_priv *priv, |
8318d78a | 4853 | enum ieee80211_band band, u16 channel) |
b481de9c ZY |
4854 | { |
4855 | int i; | |
4856 | ||
8318d78a JB |
4857 | switch (band) { |
4858 | case IEEE80211_BAND_5GHZ: | |
b481de9c ZY |
4859 | for (i = 14; i < priv->channel_count; i++) { |
4860 | if (priv->channel_info[i].channel == channel) | |
4861 | return &priv->channel_info[i]; | |
4862 | } | |
4863 | break; | |
4864 | ||
8318d78a | 4865 | case IEEE80211_BAND_2GHZ: |
b481de9c ZY |
4866 | if (channel >= 1 && channel <= 14) |
4867 | return &priv->channel_info[channel - 1]; | |
4868 | break; | |
8318d78a JB |
4869 | case IEEE80211_NUM_BANDS: |
4870 | WARN_ON(1); | |
b481de9c ZY |
4871 | } |
4872 | ||
4873 | return NULL; | |
4874 | } | |
4875 | ||
4876 | #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ | |
4877 | ? # x " " : "") | |
4878 | ||
6440adb5 CB |
4879 | /** |
4880 | * iwl3945_init_channel_map - Set up driver's info for all possible channels | |
4881 | */ | |
bb8c093b | 4882 | static int iwl3945_init_channel_map(struct iwl3945_priv *priv) |
b481de9c ZY |
4883 | { |
4884 | int eeprom_ch_count = 0; | |
4885 | const u8 *eeprom_ch_index = NULL; | |
bb8c093b | 4886 | const struct iwl3945_eeprom_channel *eeprom_ch_info = NULL; |
b481de9c | 4887 | int band, ch; |
bb8c093b | 4888 | struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
4889 | |
4890 | if (priv->channel_count) { | |
4891 | IWL_DEBUG_INFO("Channel map already initialized.\n"); | |
4892 | return 0; | |
4893 | } | |
4894 | ||
4895 | if (priv->eeprom.version < 0x2f) { | |
4896 | IWL_WARNING("Unsupported EEPROM version: 0x%04X\n", | |
4897 | priv->eeprom.version); | |
4898 | return -EINVAL; | |
4899 | } | |
4900 | ||
4901 | IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n"); | |
4902 | ||
4903 | priv->channel_count = | |
bb8c093b CH |
4904 | ARRAY_SIZE(iwl3945_eeprom_band_1) + |
4905 | ARRAY_SIZE(iwl3945_eeprom_band_2) + | |
4906 | ARRAY_SIZE(iwl3945_eeprom_band_3) + | |
4907 | ARRAY_SIZE(iwl3945_eeprom_band_4) + | |
4908 | ARRAY_SIZE(iwl3945_eeprom_band_5); | |
b481de9c ZY |
4909 | |
4910 | IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count); | |
4911 | ||
bb8c093b | 4912 | priv->channel_info = kzalloc(sizeof(struct iwl3945_channel_info) * |
b481de9c ZY |
4913 | priv->channel_count, GFP_KERNEL); |
4914 | if (!priv->channel_info) { | |
4915 | IWL_ERROR("Could not allocate channel_info\n"); | |
4916 | priv->channel_count = 0; | |
4917 | return -ENOMEM; | |
4918 | } | |
4919 | ||
4920 | ch_info = priv->channel_info; | |
4921 | ||
4922 | /* Loop through the 5 EEPROM bands adding them in order to the | |
4923 | * channel map we maintain (that contains additional information than | |
4924 | * what just in the EEPROM) */ | |
4925 | for (band = 1; band <= 5; band++) { | |
4926 | ||
bb8c093b | 4927 | iwl3945_init_band_reference(priv, band, &eeprom_ch_count, |
b481de9c ZY |
4928 | &eeprom_ch_info, &eeprom_ch_index); |
4929 | ||
4930 | /* Loop through each band adding each of the channels */ | |
4931 | for (ch = 0; ch < eeprom_ch_count; ch++) { | |
4932 | ch_info->channel = eeprom_ch_index[ch]; | |
8318d78a JB |
4933 | ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : |
4934 | IEEE80211_BAND_5GHZ; | |
b481de9c ZY |
4935 | |
4936 | /* permanently store EEPROM's channel regulatory flags | |
4937 | * and max power in channel info database. */ | |
4938 | ch_info->eeprom = eeprom_ch_info[ch]; | |
4939 | ||
4940 | /* Copy the run-time flags so they are there even on | |
4941 | * invalid channels */ | |
4942 | ch_info->flags = eeprom_ch_info[ch].flags; | |
4943 | ||
4944 | if (!(is_channel_valid(ch_info))) { | |
4945 | IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - " | |
4946 | "No traffic\n", | |
4947 | ch_info->channel, | |
4948 | ch_info->flags, | |
4949 | is_channel_a_band(ch_info) ? | |
4950 | "5.2" : "2.4"); | |
4951 | ch_info++; | |
4952 | continue; | |
4953 | } | |
4954 | ||
4955 | /* Initialize regulatory-based run-time data */ | |
4956 | ch_info->max_power_avg = ch_info->curr_txpow = | |
4957 | eeprom_ch_info[ch].max_power_avg; | |
4958 | ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; | |
4959 | ch_info->min_power = 0; | |
4960 | ||
8211ef78 | 4961 | IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x" |
b481de9c ZY |
4962 | " %ddBm): Ad-Hoc %ssupported\n", |
4963 | ch_info->channel, | |
4964 | is_channel_a_band(ch_info) ? | |
4965 | "5.2" : "2.4", | |
8211ef78 | 4966 | CHECK_AND_PRINT(VALID), |
b481de9c ZY |
4967 | CHECK_AND_PRINT(IBSS), |
4968 | CHECK_AND_PRINT(ACTIVE), | |
4969 | CHECK_AND_PRINT(RADAR), | |
4970 | CHECK_AND_PRINT(WIDE), | |
4971 | CHECK_AND_PRINT(NARROW), | |
4972 | CHECK_AND_PRINT(DFS), | |
4973 | eeprom_ch_info[ch].flags, | |
4974 | eeprom_ch_info[ch].max_power_avg, | |
4975 | ((eeprom_ch_info[ch]. | |
4976 | flags & EEPROM_CHANNEL_IBSS) | |
4977 | && !(eeprom_ch_info[ch]. | |
4978 | flags & EEPROM_CHANNEL_RADAR)) | |
4979 | ? "" : "not "); | |
4980 | ||
4981 | /* Set the user_txpower_limit to the highest power | |
4982 | * supported by any channel */ | |
4983 | if (eeprom_ch_info[ch].max_power_avg > | |
4984 | priv->user_txpower_limit) | |
4985 | priv->user_txpower_limit = | |
4986 | eeprom_ch_info[ch].max_power_avg; | |
4987 | ||
4988 | ch_info++; | |
4989 | } | |
4990 | } | |
4991 | ||
6440adb5 | 4992 | /* Set up txpower settings in driver for all channels */ |
b481de9c ZY |
4993 | if (iwl3945_txpower_set_from_eeprom(priv)) |
4994 | return -EIO; | |
4995 | ||
4996 | return 0; | |
4997 | } | |
4998 | ||
849e0dce RC |
4999 | /* |
5000 | * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map | |
5001 | */ | |
5002 | static void iwl3945_free_channel_map(struct iwl3945_priv *priv) | |
5003 | { | |
5004 | kfree(priv->channel_info); | |
5005 | priv->channel_count = 0; | |
5006 | } | |
5007 | ||
b481de9c ZY |
5008 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
5009 | * sending probe req. This should be set long enough to hear probe responses | |
5010 | * from more than one AP. */ | |
5011 | #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
5012 | #define IWL_ACTIVE_DWELL_TIME_52 (10) | |
5013 | ||
5014 | /* For faster active scanning, scan will move to the next channel if fewer than | |
5015 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
5016 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
5017 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
5018 | * no other traffic). | |
5019 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
5020 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
5021 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */ | |
5022 | ||
5023 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
5024 | * Must be set longer than active dwell time. | |
5025 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
5026 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
5027 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
5028 | #define IWL_PASSIVE_DWELL_BASE (100) | |
5029 | #define IWL_CHANNEL_TUNE_TIME 5 | |
5030 | ||
8318d78a JB |
5031 | static inline u16 iwl3945_get_active_dwell_time(struct iwl3945_priv *priv, |
5032 | enum ieee80211_band band) | |
b481de9c | 5033 | { |
8318d78a | 5034 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
5035 | return IWL_ACTIVE_DWELL_TIME_52; |
5036 | else | |
5037 | return IWL_ACTIVE_DWELL_TIME_24; | |
5038 | } | |
5039 | ||
8318d78a JB |
5040 | static u16 iwl3945_get_passive_dwell_time(struct iwl3945_priv *priv, |
5041 | enum ieee80211_band band) | |
b481de9c | 5042 | { |
8318d78a JB |
5043 | u16 active = iwl3945_get_active_dwell_time(priv, band); |
5044 | u16 passive = (band == IEEE80211_BAND_2GHZ) ? | |
b481de9c ZY |
5045 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
5046 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
5047 | ||
bb8c093b | 5048 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
5049 | /* If we're associated, we clamp the maximum passive |
5050 | * dwell time to be 98% of the beacon interval (minus | |
5051 | * 2 * channel tune time) */ | |
5052 | passive = priv->beacon_int; | |
5053 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
5054 | passive = IWL_PASSIVE_DWELL_BASE; | |
5055 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
5056 | } | |
5057 | ||
5058 | if (passive <= active) | |
5059 | passive = active + 1; | |
5060 | ||
5061 | return passive; | |
5062 | } | |
5063 | ||
8318d78a JB |
5064 | static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv, |
5065 | enum ieee80211_band band, | |
b481de9c | 5066 | u8 is_active, u8 direct_mask, |
bb8c093b | 5067 | struct iwl3945_scan_channel *scan_ch) |
b481de9c ZY |
5068 | { |
5069 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 5070 | const struct ieee80211_supported_band *sband; |
bb8c093b | 5071 | const struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
5072 | u16 passive_dwell = 0; |
5073 | u16 active_dwell = 0; | |
5074 | int added, i; | |
5075 | ||
8318d78a JB |
5076 | sband = iwl3945_get_band(priv, band); |
5077 | if (!sband) | |
b481de9c ZY |
5078 | return 0; |
5079 | ||
8318d78a | 5080 | channels = sband->channels; |
b481de9c | 5081 | |
8318d78a JB |
5082 | active_dwell = iwl3945_get_active_dwell_time(priv, band); |
5083 | passive_dwell = iwl3945_get_passive_dwell_time(priv, band); | |
b481de9c | 5084 | |
8318d78a JB |
5085 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
5086 | if (channels[i].hw_value == | |
b481de9c | 5087 | le16_to_cpu(priv->active_rxon.channel)) { |
bb8c093b | 5088 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
5089 | IWL_DEBUG_SCAN |
5090 | ("Skipping current channel %d\n", | |
5091 | le16_to_cpu(priv->active_rxon.channel)); | |
5092 | continue; | |
5093 | } | |
5094 | } else if (priv->only_active_channel) | |
5095 | continue; | |
5096 | ||
8318d78a | 5097 | scan_ch->channel = channels[i].hw_value; |
b481de9c | 5098 | |
8318d78a | 5099 | ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel); |
b481de9c ZY |
5100 | if (!is_channel_valid(ch_info)) { |
5101 | IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n", | |
5102 | scan_ch->channel); | |
5103 | continue; | |
5104 | } | |
5105 | ||
5106 | if (!is_active || is_channel_passive(ch_info) || | |
8318d78a | 5107 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) |
b481de9c ZY |
5108 | scan_ch->type = 0; /* passive */ |
5109 | else | |
5110 | scan_ch->type = 1; /* active */ | |
5111 | ||
5112 | if (scan_ch->type & 1) | |
5113 | scan_ch->type |= (direct_mask << 1); | |
5114 | ||
5115 | if (is_channel_narrow(ch_info)) | |
5116 | scan_ch->type |= (1 << 7); | |
5117 | ||
5118 | scan_ch->active_dwell = cpu_to_le16(active_dwell); | |
5119 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
5120 | ||
9fbab516 | 5121 | /* Set txpower levels to defaults */ |
b481de9c ZY |
5122 | scan_ch->tpc.dsp_atten = 110; |
5123 | /* scan_pwr_info->tpc.dsp_atten; */ | |
5124 | ||
5125 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 5126 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
5127 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
5128 | else { | |
5129 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
5130 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 5131 | * power level: |
8a1b0245 | 5132 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
5133 | */ |
5134 | } | |
5135 | ||
5136 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
5137 | scan_ch->channel, | |
5138 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
5139 | (scan_ch->type & 1) ? | |
5140 | active_dwell : passive_dwell); | |
5141 | ||
5142 | scan_ch++; | |
5143 | added++; | |
5144 | } | |
5145 | ||
5146 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
5147 | return added; | |
5148 | } | |
5149 | ||
bb8c093b | 5150 | static void iwl3945_init_hw_rates(struct iwl3945_priv *priv, |
b481de9c ZY |
5151 | struct ieee80211_rate *rates) |
5152 | { | |
5153 | int i; | |
5154 | ||
5155 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
5156 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
5157 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
5158 | rates[i].hw_value_short = i; | |
5159 | rates[i].flags = 0; | |
5160 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
b481de9c | 5161 | /* |
8318d78a | 5162 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 5163 | */ |
bb8c093b | 5164 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 5165 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 5166 | } |
b481de9c ZY |
5167 | } |
5168 | } | |
5169 | ||
5170 | /** | |
bb8c093b | 5171 | * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom |
b481de9c | 5172 | */ |
bb8c093b | 5173 | static int iwl3945_init_geos(struct iwl3945_priv *priv) |
b481de9c | 5174 | { |
bb8c093b | 5175 | struct iwl3945_channel_info *ch; |
8211ef78 | 5176 | struct ieee80211_supported_band *sband; |
b481de9c ZY |
5177 | struct ieee80211_channel *channels; |
5178 | struct ieee80211_channel *geo_ch; | |
5179 | struct ieee80211_rate *rates; | |
5180 | int i = 0; | |
b481de9c | 5181 | |
8318d78a JB |
5182 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
5183 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
b481de9c ZY |
5184 | IWL_DEBUG_INFO("Geography modes already initialized.\n"); |
5185 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
5186 | return 0; | |
5187 | } | |
5188 | ||
b481de9c ZY |
5189 | channels = kzalloc(sizeof(struct ieee80211_channel) * |
5190 | priv->channel_count, GFP_KERNEL); | |
8318d78a | 5191 | if (!channels) |
b481de9c | 5192 | return -ENOMEM; |
b481de9c | 5193 | |
8211ef78 | 5194 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), |
b481de9c ZY |
5195 | GFP_KERNEL); |
5196 | if (!rates) { | |
b481de9c ZY |
5197 | kfree(channels); |
5198 | return -ENOMEM; | |
5199 | } | |
5200 | ||
b481de9c | 5201 | /* 5.2GHz channels start after the 2.4GHz channels */ |
8211ef78 TW |
5202 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
5203 | sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)]; | |
5204 | /* just OFDM */ | |
5205 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
5206 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
5207 | ||
5208 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
5209 | sband->channels = channels; | |
5210 | /* OFDM & CCK */ | |
5211 | sband->bitrates = rates; | |
5212 | sband->n_bitrates = IWL_RATE_COUNT; | |
b481de9c ZY |
5213 | |
5214 | priv->ieee_channels = channels; | |
5215 | priv->ieee_rates = rates; | |
5216 | ||
bb8c093b | 5217 | iwl3945_init_hw_rates(priv, rates); |
b481de9c | 5218 | |
8211ef78 | 5219 | for (i = 0; i < priv->channel_count; i++) { |
b481de9c ZY |
5220 | ch = &priv->channel_info[i]; |
5221 | ||
8211ef78 TW |
5222 | /* FIXME: might be removed if scan is OK*/ |
5223 | if (!is_channel_valid(ch)) | |
b481de9c | 5224 | continue; |
b481de9c ZY |
5225 | |
5226 | if (is_channel_a_band(ch)) | |
8211ef78 | 5227 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
8318d78a | 5228 | else |
8211ef78 | 5229 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
b481de9c | 5230 | |
8211ef78 TW |
5231 | geo_ch = &sband->channels[sband->n_channels++]; |
5232 | ||
5233 | geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel); | |
8318d78a JB |
5234 | geo_ch->max_power = ch->max_power_avg; |
5235 | geo_ch->max_antenna_gain = 0xff; | |
7b72304d | 5236 | geo_ch->hw_value = ch->channel; |
b481de9c ZY |
5237 | |
5238 | if (is_channel_valid(ch)) { | |
8318d78a JB |
5239 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
5240 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
b481de9c | 5241 | |
8318d78a JB |
5242 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
5243 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
b481de9c ZY |
5244 | |
5245 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
8318d78a | 5246 | geo_ch->flags |= IEEE80211_CHAN_RADAR; |
b481de9c ZY |
5247 | |
5248 | if (ch->max_power_avg > priv->max_channel_txpower_limit) | |
5249 | priv->max_channel_txpower_limit = | |
5250 | ch->max_power_avg; | |
8211ef78 | 5251 | } else { |
8318d78a | 5252 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
8211ef78 TW |
5253 | } |
5254 | ||
5255 | /* Save flags for reg domain usage */ | |
5256 | geo_ch->orig_flags = geo_ch->flags; | |
5257 | ||
5258 | IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n", | |
5259 | ch->channel, geo_ch->center_freq, | |
5260 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
5261 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
5262 | "restricted" : "valid", | |
5263 | geo_ch->flags); | |
b481de9c ZY |
5264 | } |
5265 | ||
82b9a121 TW |
5266 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
5267 | priv->cfg->sku & IWL_SKU_A) { | |
b481de9c ZY |
5268 | printk(KERN_INFO DRV_NAME |
5269 | ": Incorrectly detected BG card as ABG. Please send " | |
5270 | "your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
5271 | priv->pci_dev->device, priv->pci_dev->subsystem_device); | |
82b9a121 | 5272 | priv->cfg->sku &= ~IWL_SKU_A; |
b481de9c ZY |
5273 | } |
5274 | ||
5275 | printk(KERN_INFO DRV_NAME | |
5276 | ": Tunable channels: %d 802.11bg, %d 802.11a channels\n", | |
8318d78a JB |
5277 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
5278 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
b481de9c | 5279 | |
8318d78a JB |
5280 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->bands[IEEE80211_BAND_2GHZ]; |
5281 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->bands[IEEE80211_BAND_5GHZ]; | |
b481de9c | 5282 | |
b481de9c ZY |
5283 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
5284 | ||
5285 | return 0; | |
5286 | } | |
5287 | ||
849e0dce RC |
5288 | /* |
5289 | * iwl3945_free_geos - undo allocations in iwl3945_init_geos | |
5290 | */ | |
5291 | static void iwl3945_free_geos(struct iwl3945_priv *priv) | |
5292 | { | |
849e0dce RC |
5293 | kfree(priv->ieee_channels); |
5294 | kfree(priv->ieee_rates); | |
5295 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
5296 | } | |
5297 | ||
b481de9c ZY |
5298 | /****************************************************************************** |
5299 | * | |
5300 | * uCode download functions | |
5301 | * | |
5302 | ******************************************************************************/ | |
5303 | ||
bb8c093b | 5304 | static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv *priv) |
b481de9c | 5305 | { |
98c92211 TW |
5306 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
5307 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
5308 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
5309 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
5310 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
5311 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
5312 | } |
5313 | ||
5314 | /** | |
bb8c093b | 5315 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5316 | * looking at all data. |
5317 | */ | |
bb8c093b | 5318 | static int iwl3945_verify_inst_full(struct iwl3945_priv *priv, __le32 * image, u32 len) |
b481de9c ZY |
5319 | { |
5320 | u32 val; | |
5321 | u32 save_len = len; | |
5322 | int rc = 0; | |
5323 | u32 errcnt; | |
5324 | ||
5325 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5326 | ||
bb8c093b | 5327 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5328 | if (rc) |
5329 | return rc; | |
5330 | ||
bb8c093b | 5331 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND); |
b481de9c ZY |
5332 | |
5333 | errcnt = 0; | |
5334 | for (; len > 0; len -= sizeof(u32), image++) { | |
5335 | /* read data comes through single port, auto-incr addr */ | |
5336 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5337 | * if IWL_DL_IO is set */ | |
bb8c093b | 5338 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5339 | if (val != le32_to_cpu(*image)) { |
5340 | IWL_ERROR("uCode INST section is invalid at " | |
5341 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5342 | save_len - len, val, le32_to_cpu(*image)); | |
5343 | rc = -EIO; | |
5344 | errcnt++; | |
5345 | if (errcnt >= 20) | |
5346 | break; | |
5347 | } | |
5348 | } | |
5349 | ||
bb8c093b | 5350 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5351 | |
5352 | if (!errcnt) | |
bc434dd2 | 5353 | IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n"); |
b481de9c ZY |
5354 | |
5355 | return rc; | |
5356 | } | |
5357 | ||
5358 | ||
5359 | /** | |
bb8c093b | 5360 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
5361 | * using sample data 100 bytes apart. If these sample points are good, |
5362 | * it's a pretty good bet that everything between them is good, too. | |
5363 | */ | |
bb8c093b | 5364 | static int iwl3945_verify_inst_sparse(struct iwl3945_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
5365 | { |
5366 | u32 val; | |
5367 | int rc = 0; | |
5368 | u32 errcnt = 0; | |
5369 | u32 i; | |
5370 | ||
5371 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
5372 | ||
bb8c093b | 5373 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5374 | if (rc) |
5375 | return rc; | |
5376 | ||
5377 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
5378 | /* read data comes through single port, auto-incr addr */ | |
5379 | /* NOTE: Use the debugless read so we don't flood kernel log | |
5380 | * if IWL_DL_IO is set */ | |
bb8c093b | 5381 | iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
b481de9c | 5382 | i + RTC_INST_LOWER_BOUND); |
bb8c093b | 5383 | val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
5384 | if (val != le32_to_cpu(*image)) { |
5385 | #if 0 /* Enable this if you want to see details */ | |
5386 | IWL_ERROR("uCode INST section is invalid at " | |
5387 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
5388 | i, val, *image); | |
5389 | #endif | |
5390 | rc = -EIO; | |
5391 | errcnt++; | |
5392 | if (errcnt >= 3) | |
5393 | break; | |
5394 | } | |
5395 | } | |
5396 | ||
bb8c093b | 5397 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5398 | |
5399 | return rc; | |
5400 | } | |
5401 | ||
5402 | ||
5403 | /** | |
bb8c093b | 5404 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
5405 | * and verify its contents |
5406 | */ | |
bb8c093b | 5407 | static int iwl3945_verify_ucode(struct iwl3945_priv *priv) |
b481de9c ZY |
5408 | { |
5409 | __le32 *image; | |
5410 | u32 len; | |
5411 | int rc = 0; | |
5412 | ||
5413 | /* Try bootstrap */ | |
5414 | image = (__le32 *)priv->ucode_boot.v_addr; | |
5415 | len = priv->ucode_boot.len; | |
bb8c093b | 5416 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5417 | if (rc == 0) { |
5418 | IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n"); | |
5419 | return 0; | |
5420 | } | |
5421 | ||
5422 | /* Try initialize */ | |
5423 | image = (__le32 *)priv->ucode_init.v_addr; | |
5424 | len = priv->ucode_init.len; | |
bb8c093b | 5425 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5426 | if (rc == 0) { |
5427 | IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n"); | |
5428 | return 0; | |
5429 | } | |
5430 | ||
5431 | /* Try runtime/protocol */ | |
5432 | image = (__le32 *)priv->ucode_code.v_addr; | |
5433 | len = priv->ucode_code.len; | |
bb8c093b | 5434 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c ZY |
5435 | if (rc == 0) { |
5436 | IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n"); | |
5437 | return 0; | |
5438 | } | |
5439 | ||
5440 | IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); | |
5441 | ||
9fbab516 BC |
5442 | /* Since nothing seems to match, show first several data entries in |
5443 | * instruction SRAM, so maybe visual inspection will give a clue. | |
5444 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
5445 | image = (__le32 *)priv->ucode_boot.v_addr; |
5446 | len = priv->ucode_boot.len; | |
bb8c093b | 5447 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
5448 | |
5449 | return rc; | |
5450 | } | |
5451 | ||
5452 | ||
5453 | /* check contents of special bootstrap uCode SRAM */ | |
bb8c093b | 5454 | static int iwl3945_verify_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5455 | { |
5456 | __le32 *image = priv->ucode_boot.v_addr; | |
5457 | u32 len = priv->ucode_boot.len; | |
5458 | u32 reg; | |
5459 | u32 val; | |
5460 | ||
5461 | IWL_DEBUG_INFO("Begin verify bsm\n"); | |
5462 | ||
5463 | /* verify BSM SRAM contents */ | |
bb8c093b | 5464 | val = iwl3945_read_prph(priv, BSM_WR_DWCOUNT_REG); |
b481de9c ZY |
5465 | for (reg = BSM_SRAM_LOWER_BOUND; |
5466 | reg < BSM_SRAM_LOWER_BOUND + len; | |
5467 | reg += sizeof(u32), image ++) { | |
bb8c093b | 5468 | val = iwl3945_read_prph(priv, reg); |
b481de9c ZY |
5469 | if (val != le32_to_cpu(*image)) { |
5470 | IWL_ERROR("BSM uCode verification failed at " | |
5471 | "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", | |
5472 | BSM_SRAM_LOWER_BOUND, | |
5473 | reg - BSM_SRAM_LOWER_BOUND, len, | |
5474 | val, le32_to_cpu(*image)); | |
5475 | return -EIO; | |
5476 | } | |
5477 | } | |
5478 | ||
5479 | IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n"); | |
5480 | ||
5481 | return 0; | |
5482 | } | |
5483 | ||
5484 | /** | |
bb8c093b | 5485 | * iwl3945_load_bsm - Load bootstrap instructions |
b481de9c ZY |
5486 | * |
5487 | * BSM operation: | |
5488 | * | |
5489 | * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program | |
5490 | * in special SRAM that does not power down during RFKILL. When powering back | |
5491 | * up after power-saving sleeps (or during initial uCode load), the BSM loads | |
5492 | * the bootstrap program into the on-board processor, and starts it. | |
5493 | * | |
5494 | * The bootstrap program loads (via DMA) instructions and data for a new | |
5495 | * program from host DRAM locations indicated by the host driver in the | |
5496 | * BSM_DRAM_* registers. Once the new program is loaded, it starts | |
5497 | * automatically. | |
5498 | * | |
5499 | * When initializing the NIC, the host driver points the BSM to the | |
5500 | * "initialize" uCode image. This uCode sets up some internal data, then | |
5501 | * notifies host via "initialize alive" that it is complete. | |
5502 | * | |
5503 | * The host then replaces the BSM_DRAM_* pointer values to point to the | |
5504 | * normal runtime uCode instructions and a backup uCode data cache buffer | |
5505 | * (filled initially with starting data values for the on-board processor), | |
5506 | * then triggers the "initialize" uCode to load and launch the runtime uCode, | |
5507 | * which begins normal operation. | |
5508 | * | |
5509 | * When doing a power-save shutdown, runtime uCode saves data SRAM into | |
5510 | * the backup data cache in DRAM before SRAM is powered down. | |
5511 | * | |
5512 | * When powering back up, the BSM loads the bootstrap program. This reloads | |
5513 | * the runtime uCode instructions and the backup data cache into SRAM, | |
5514 | * and re-launches the runtime uCode from where it left off. | |
5515 | */ | |
bb8c093b | 5516 | static int iwl3945_load_bsm(struct iwl3945_priv *priv) |
b481de9c ZY |
5517 | { |
5518 | __le32 *image = priv->ucode_boot.v_addr; | |
5519 | u32 len = priv->ucode_boot.len; | |
5520 | dma_addr_t pinst; | |
5521 | dma_addr_t pdata; | |
5522 | u32 inst_len; | |
5523 | u32 data_len; | |
5524 | int rc; | |
5525 | int i; | |
5526 | u32 done; | |
5527 | u32 reg_offset; | |
5528 | ||
5529 | IWL_DEBUG_INFO("Begin load bsm\n"); | |
5530 | ||
5531 | /* make sure bootstrap program is no larger than BSM's SRAM size */ | |
5532 | if (len > IWL_MAX_BSM_SIZE) | |
5533 | return -EINVAL; | |
5534 | ||
5535 | /* Tell bootstrap uCode where to find the "Initialize" uCode | |
9fbab516 | 5536 | * in host DRAM ... host DRAM physical address bits 31:0 for 3945. |
bb8c093b | 5537 | * NOTE: iwl3945_initialize_alive_start() will replace these values, |
b481de9c ZY |
5538 | * after the "initialize" uCode has run, to point to |
5539 | * runtime/protocol instructions and backup data cache. */ | |
5540 | pinst = priv->ucode_init.p_addr; | |
5541 | pdata = priv->ucode_init_data.p_addr; | |
5542 | inst_len = priv->ucode_init.len; | |
5543 | data_len = priv->ucode_init_data.len; | |
5544 | ||
bb8c093b | 5545 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5546 | if (rc) |
5547 | return rc; | |
5548 | ||
bb8c093b CH |
5549 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5550 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5551 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); | |
5552 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); | |
b481de9c ZY |
5553 | |
5554 | /* Fill BSM memory with bootstrap instructions */ | |
5555 | for (reg_offset = BSM_SRAM_LOWER_BOUND; | |
5556 | reg_offset < BSM_SRAM_LOWER_BOUND + len; | |
5557 | reg_offset += sizeof(u32), image++) | |
bb8c093b | 5558 | _iwl3945_write_prph(priv, reg_offset, |
b481de9c ZY |
5559 | le32_to_cpu(*image)); |
5560 | ||
bb8c093b | 5561 | rc = iwl3945_verify_bsm(priv); |
b481de9c | 5562 | if (rc) { |
bb8c093b | 5563 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5564 | return rc; |
5565 | } | |
5566 | ||
5567 | /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ | |
bb8c093b CH |
5568 | iwl3945_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); |
5569 | iwl3945_write_prph(priv, BSM_WR_MEM_DST_REG, | |
b481de9c | 5570 | RTC_INST_LOWER_BOUND); |
bb8c093b | 5571 | iwl3945_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); |
b481de9c ZY |
5572 | |
5573 | /* Load bootstrap code into instruction SRAM now, | |
5574 | * to prepare to load "initialize" uCode */ | |
bb8c093b | 5575 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5576 | BSM_WR_CTRL_REG_BIT_START); |
5577 | ||
5578 | /* Wait for load of bootstrap uCode to finish */ | |
5579 | for (i = 0; i < 100; i++) { | |
bb8c093b | 5580 | done = iwl3945_read_prph(priv, BSM_WR_CTRL_REG); |
b481de9c ZY |
5581 | if (!(done & BSM_WR_CTRL_REG_BIT_START)) |
5582 | break; | |
5583 | udelay(10); | |
5584 | } | |
5585 | if (i < 100) | |
5586 | IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i); | |
5587 | else { | |
5588 | IWL_ERROR("BSM write did not complete!\n"); | |
5589 | return -EIO; | |
5590 | } | |
5591 | ||
5592 | /* Enable future boot loads whenever power management unit triggers it | |
5593 | * (e.g. when powering back up after power-save shutdown) */ | |
bb8c093b | 5594 | iwl3945_write_prph(priv, BSM_WR_CTRL_REG, |
b481de9c ZY |
5595 | BSM_WR_CTRL_REG_BIT_START_EN); |
5596 | ||
bb8c093b | 5597 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5598 | |
5599 | return 0; | |
5600 | } | |
5601 | ||
bb8c093b | 5602 | static void iwl3945_nic_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5603 | { |
5604 | /* Remove all resets to allow NIC to operate */ | |
bb8c093b | 5605 | iwl3945_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
5606 | } |
5607 | ||
5608 | /** | |
bb8c093b | 5609 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
5610 | * |
5611 | * Copy into buffers for card to fetch via bus-mastering | |
5612 | */ | |
bb8c093b | 5613 | static int iwl3945_read_ucode(struct iwl3945_priv *priv) |
b481de9c | 5614 | { |
bb8c093b | 5615 | struct iwl3945_ucode *ucode; |
90e759d1 | 5616 | int ret = 0; |
b481de9c ZY |
5617 | const struct firmware *ucode_raw; |
5618 | /* firmware file name contains uCode/driver compatibility version */ | |
4bf775cd | 5619 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
5620 | u8 *src; |
5621 | size_t len; | |
5622 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
5623 | ||
5624 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
5625 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
5626 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
5627 | if (ret < 0) { | |
5628 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
5629 | name, ret); | |
b481de9c ZY |
5630 | goto error; |
5631 | } | |
5632 | ||
5633 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
5634 | name, ucode_raw->size); | |
5635 | ||
5636 | /* Make sure that we got at least our header! */ | |
5637 | if (ucode_raw->size < sizeof(*ucode)) { | |
5638 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 5639 | ret = -EINVAL; |
b481de9c ZY |
5640 | goto err_release; |
5641 | } | |
5642 | ||
5643 | /* Data from ucode file: header followed by uCode images */ | |
5644 | ucode = (void *)ucode_raw->data; | |
5645 | ||
5646 | ver = le32_to_cpu(ucode->ver); | |
5647 | inst_size = le32_to_cpu(ucode->inst_size); | |
5648 | data_size = le32_to_cpu(ucode->data_size); | |
5649 | init_size = le32_to_cpu(ucode->init_size); | |
5650 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
5651 | boot_size = le32_to_cpu(ucode->boot_size); | |
5652 | ||
5653 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
bc434dd2 IS |
5654 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size); |
5655 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size); | |
5656 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size); | |
5657 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size); | |
5658 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size); | |
b481de9c ZY |
5659 | |
5660 | /* Verify size of file vs. image size info in file's header */ | |
5661 | if (ucode_raw->size < sizeof(*ucode) + | |
5662 | inst_size + data_size + init_size + | |
5663 | init_data_size + boot_size) { | |
5664 | ||
5665 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
5666 | (int)ucode_raw->size); | |
90e759d1 | 5667 | ret = -EINVAL; |
b481de9c ZY |
5668 | goto err_release; |
5669 | } | |
5670 | ||
5671 | /* Verify that uCode images will fit in card's SRAM */ | |
5672 | if (inst_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5673 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
5674 | inst_size); | |
5675 | ret = -EINVAL; | |
b481de9c ZY |
5676 | goto err_release; |
5677 | } | |
5678 | ||
5679 | if (data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5680 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
5681 | data_size); | |
5682 | ret = -EINVAL; | |
b481de9c ZY |
5683 | goto err_release; |
5684 | } | |
5685 | if (init_size > IWL_MAX_INST_SIZE) { | |
90e759d1 TW |
5686 | IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n", |
5687 | init_size); | |
5688 | ret = -EINVAL; | |
b481de9c ZY |
5689 | goto err_release; |
5690 | } | |
5691 | if (init_data_size > IWL_MAX_DATA_SIZE) { | |
90e759d1 TW |
5692 | IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n", |
5693 | init_data_size); | |
5694 | ret = -EINVAL; | |
b481de9c ZY |
5695 | goto err_release; |
5696 | } | |
5697 | if (boot_size > IWL_MAX_BSM_SIZE) { | |
90e759d1 TW |
5698 | IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n", |
5699 | boot_size); | |
5700 | ret = -EINVAL; | |
b481de9c ZY |
5701 | goto err_release; |
5702 | } | |
5703 | ||
5704 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
5705 | ||
5706 | /* Runtime instructions and 2 copies of data: | |
5707 | * 1) unmodified from disk | |
5708 | * 2) backup cache for save/restore during power-downs */ | |
5709 | priv->ucode_code.len = inst_size; | |
98c92211 | 5710 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
5711 | |
5712 | priv->ucode_data.len = data_size; | |
98c92211 | 5713 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
5714 | |
5715 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 5716 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 5717 | |
90e759d1 TW |
5718 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
5719 | !priv->ucode_data_backup.v_addr) | |
5720 | goto err_pci_alloc; | |
b481de9c ZY |
5721 | |
5722 | /* Initialization instructions and data */ | |
90e759d1 TW |
5723 | if (init_size && init_data_size) { |
5724 | priv->ucode_init.len = init_size; | |
98c92211 | 5725 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
5726 | |
5727 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 5728 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
5729 | |
5730 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
5731 | goto err_pci_alloc; | |
5732 | } | |
b481de9c ZY |
5733 | |
5734 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
5735 | if (boot_size) { |
5736 | priv->ucode_boot.len = boot_size; | |
98c92211 | 5737 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 5738 | |
90e759d1 TW |
5739 | if (!priv->ucode_boot.v_addr) |
5740 | goto err_pci_alloc; | |
5741 | } | |
b481de9c ZY |
5742 | |
5743 | /* Copy images into buffers for card's bus-master reads ... */ | |
5744 | ||
5745 | /* Runtime instructions (first block of data in file) */ | |
5746 | src = &ucode->data[0]; | |
5747 | len = priv->ucode_code.len; | |
90e759d1 | 5748 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
5749 | memcpy(priv->ucode_code.v_addr, src, len); |
5750 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
5751 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
5752 | ||
5753 | /* Runtime data (2nd block) | |
bb8c093b | 5754 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
b481de9c ZY |
5755 | src = &ucode->data[inst_size]; |
5756 | len = priv->ucode_data.len; | |
90e759d1 | 5757 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
5758 | memcpy(priv->ucode_data.v_addr, src, len); |
5759 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
5760 | ||
5761 | /* Initialization instructions (3rd block) */ | |
5762 | if (init_size) { | |
5763 | src = &ucode->data[inst_size + data_size]; | |
5764 | len = priv->ucode_init.len; | |
90e759d1 TW |
5765 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
5766 | len); | |
b481de9c ZY |
5767 | memcpy(priv->ucode_init.v_addr, src, len); |
5768 | } | |
5769 | ||
5770 | /* Initialization data (4th block) */ | |
5771 | if (init_data_size) { | |
5772 | src = &ucode->data[inst_size + data_size + init_size]; | |
5773 | len = priv->ucode_init_data.len; | |
5774 | IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n", | |
5775 | (int)len); | |
5776 | memcpy(priv->ucode_init_data.v_addr, src, len); | |
5777 | } | |
5778 | ||
5779 | /* Bootstrap instructions (5th block) */ | |
5780 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
5781 | len = priv->ucode_boot.len; | |
5782 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n", | |
5783 | (int)len); | |
5784 | memcpy(priv->ucode_boot.v_addr, src, len); | |
5785 | ||
5786 | /* We have our copies now, allow OS release its copies */ | |
5787 | release_firmware(ucode_raw); | |
5788 | return 0; | |
5789 | ||
5790 | err_pci_alloc: | |
5791 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 5792 | ret = -ENOMEM; |
bb8c093b | 5793 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
5794 | |
5795 | err_release: | |
5796 | release_firmware(ucode_raw); | |
5797 | ||
5798 | error: | |
90e759d1 | 5799 | return ret; |
b481de9c ZY |
5800 | } |
5801 | ||
5802 | ||
5803 | /** | |
bb8c093b | 5804 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
5805 | * |
5806 | * Tell initialization uCode where to find runtime uCode. | |
5807 | * | |
5808 | * BSM registers initially contain pointers to initialization uCode. | |
5809 | * We need to replace them to load runtime uCode inst and data, | |
5810 | * and to save runtime data when powering down. | |
5811 | */ | |
bb8c093b | 5812 | static int iwl3945_set_ucode_ptrs(struct iwl3945_priv *priv) |
b481de9c ZY |
5813 | { |
5814 | dma_addr_t pinst; | |
5815 | dma_addr_t pdata; | |
5816 | int rc = 0; | |
5817 | unsigned long flags; | |
5818 | ||
5819 | /* bits 31:0 for 3945 */ | |
5820 | pinst = priv->ucode_code.p_addr; | |
5821 | pdata = priv->ucode_data_backup.p_addr; | |
5822 | ||
5823 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 5824 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5825 | if (rc) { |
5826 | spin_unlock_irqrestore(&priv->lock, flags); | |
5827 | return rc; | |
5828 | } | |
5829 | ||
5830 | /* Tell bootstrap uCode where to find image to load */ | |
bb8c093b CH |
5831 | iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
5832 | iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
5833 | iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
5834 | priv->ucode_data.len); |
5835 | ||
5836 | /* Inst bytecount must be last to set up, bit 31 signals uCode | |
5837 | * that all new ptr/size info is in place */ | |
bb8c093b | 5838 | iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
5839 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
5840 | ||
bb8c093b | 5841 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5842 | |
5843 | spin_unlock_irqrestore(&priv->lock, flags); | |
5844 | ||
5845 | IWL_DEBUG_INFO("Runtime uCode pointers are set.\n"); | |
5846 | ||
5847 | return rc; | |
5848 | } | |
5849 | ||
5850 | /** | |
bb8c093b | 5851 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
5852 | * |
5853 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
5854 | * | |
b481de9c | 5855 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 5856 | */ |
bb8c093b | 5857 | static void iwl3945_init_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5858 | { |
5859 | /* Check alive response for "valid" sign from uCode */ | |
5860 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
5861 | /* We had an error bringing up the hardware, so take it | |
5862 | * all the way back down so we can try again */ | |
5863 | IWL_DEBUG_INFO("Initialize Alive failed.\n"); | |
5864 | goto restart; | |
5865 | } | |
5866 | ||
5867 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
5868 | * This is a paranoid check, because we would not have gotten the | |
5869 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 5870 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5871 | /* Runtime instruction load was bad; |
5872 | * take it all the way back down so we can try again */ | |
5873 | IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n"); | |
5874 | goto restart; | |
5875 | } | |
5876 | ||
5877 | /* Send pointers to protocol/runtime uCode image ... init code will | |
5878 | * load and launch runtime uCode, which will send us another "Alive" | |
5879 | * notification. */ | |
5880 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
bb8c093b | 5881 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
5882 | /* Runtime instruction load won't happen; |
5883 | * take it all the way back down so we can try again */ | |
5884 | IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n"); | |
5885 | goto restart; | |
5886 | } | |
5887 | return; | |
5888 | ||
5889 | restart: | |
5890 | queue_work(priv->workqueue, &priv->restart); | |
5891 | } | |
5892 | ||
5893 | ||
5894 | /** | |
bb8c093b | 5895 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 5896 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 5897 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 5898 | */ |
bb8c093b | 5899 | static void iwl3945_alive_start(struct iwl3945_priv *priv) |
b481de9c ZY |
5900 | { |
5901 | int rc = 0; | |
5902 | int thermal_spin = 0; | |
5903 | u32 rfkill; | |
5904 | ||
5905 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
5906 | ||
5907 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
5908 | /* We had an error bringing up the hardware, so take it | |
5909 | * all the way back down so we can try again */ | |
5910 | IWL_DEBUG_INFO("Alive failed.\n"); | |
5911 | goto restart; | |
5912 | } | |
5913 | ||
5914 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
5915 | * This is a paranoid check, because we would not have gotten the | |
5916 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 5917 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
5918 | /* Runtime instruction load was bad; |
5919 | * take it all the way back down so we can try again */ | |
5920 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
5921 | goto restart; | |
5922 | } | |
5923 | ||
bb8c093b | 5924 | iwl3945_clear_stations_table(priv); |
b481de9c | 5925 | |
bb8c093b | 5926 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
5927 | if (rc) { |
5928 | IWL_WARNING("Can not read rfkill status from adapter\n"); | |
5929 | return; | |
5930 | } | |
5931 | ||
bb8c093b | 5932 | rfkill = iwl3945_read_prph(priv, APMG_RFKILL_REG); |
b481de9c | 5933 | IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill); |
bb8c093b | 5934 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
5935 | |
5936 | if (rfkill & 0x1) { | |
5937 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
5938 | /* if rfkill is not on, then wait for thermal | |
5939 | * sensor in adapter to kick in */ | |
bb8c093b | 5940 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
5941 | thermal_spin++; |
5942 | udelay(10); | |
5943 | } | |
5944 | ||
5945 | if (thermal_spin) | |
5946 | IWL_DEBUG_INFO("Thermal calibration took %dus\n", | |
5947 | thermal_spin * 10); | |
5948 | } else | |
5949 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
5950 | ||
9fbab516 | 5951 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
5952 | set_bit(STATUS_ALIVE, &priv->status); |
5953 | ||
5954 | /* Clear out the uCode error bit if it is set */ | |
5955 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
5956 | ||
bb8c093b | 5957 | if (iwl3945_is_rfkill(priv)) |
b481de9c ZY |
5958 | return; |
5959 | ||
5a66926a | 5960 | ieee80211_start_queues(priv->hw); |
b481de9c ZY |
5961 | |
5962 | priv->active_rate = priv->rates_mask; | |
5963 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
5964 | ||
bb8c093b | 5965 | iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode)); |
b481de9c | 5966 | |
bb8c093b CH |
5967 | if (iwl3945_is_associated(priv)) { |
5968 | struct iwl3945_rxon_cmd *active_rxon = | |
5969 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); | |
b481de9c ZY |
5970 | |
5971 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
5972 | sizeof(priv->staging_rxon)); | |
5973 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5974 | } else { | |
5975 | /* Initialize our rx_config data */ | |
bb8c093b | 5976 | iwl3945_connection_init_rx_config(priv); |
b481de9c ZY |
5977 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
5978 | } | |
5979 | ||
9fbab516 | 5980 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 5981 | iwl3945_send_bt_config(priv); |
b481de9c ZY |
5982 | |
5983 | /* Configure the adapter for unassociated operation */ | |
bb8c093b | 5984 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
5985 | |
5986 | /* At this point, the NIC is initialized and operational */ | |
5987 | priv->notif_missed_beacons = 0; | |
5988 | set_bit(STATUS_READY, &priv->status); | |
5989 | ||
5990 | iwl3945_reg_txpower_periodic(priv); | |
5991 | ||
5992 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); | |
5a66926a | 5993 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
5994 | |
5995 | if (priv->error_recovering) | |
bb8c093b | 5996 | iwl3945_error_recovery(priv); |
b481de9c ZY |
5997 | |
5998 | return; | |
5999 | ||
6000 | restart: | |
6001 | queue_work(priv->workqueue, &priv->restart); | |
6002 | } | |
6003 | ||
bb8c093b | 6004 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv); |
b481de9c | 6005 | |
bb8c093b | 6006 | static void __iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
6007 | { |
6008 | unsigned long flags; | |
6009 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
6010 | struct ieee80211_conf *conf = NULL; | |
6011 | ||
6012 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
6013 | ||
6014 | conf = ieee80211_get_hw_conf(priv->hw); | |
6015 | ||
6016 | if (!exit_pending) | |
6017 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
6018 | ||
bb8c093b | 6019 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
6020 | |
6021 | /* Unblock any waiting calls */ | |
6022 | wake_up_interruptible_all(&priv->wait_command_queue); | |
6023 | ||
b481de9c ZY |
6024 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
6025 | * exiting the module */ | |
6026 | if (!exit_pending) | |
6027 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
6028 | ||
6029 | /* stop and reset the on-board processor */ | |
bb8c093b | 6030 | iwl3945_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
6031 | |
6032 | /* tell the device to stop sending interrupts */ | |
bb8c093b | 6033 | iwl3945_disable_interrupts(priv); |
b481de9c ZY |
6034 | |
6035 | if (priv->mac80211_registered) | |
6036 | ieee80211_stop_queues(priv->hw); | |
6037 | ||
bb8c093b | 6038 | /* If we have not previously called iwl3945_init() then |
b481de9c | 6039 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
bb8c093b | 6040 | if (!iwl3945_is_init(priv)) { |
b481de9c ZY |
6041 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
6042 | STATUS_RF_KILL_HW | | |
6043 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
6044 | STATUS_RF_KILL_SW | | |
9788864e RC |
6045 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
6046 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
6047 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
6048 | STATUS_IN_SUSPEND; | |
6049 | goto exit; | |
6050 | } | |
6051 | ||
6052 | /* ...otherwise clear out all the status bits but the RF Kill and | |
6053 | * SUSPEND bits and continue taking the NIC down. */ | |
6054 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
6055 | STATUS_RF_KILL_HW | | |
6056 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
6057 | STATUS_RF_KILL_SW | | |
9788864e RC |
6058 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
6059 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
6060 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
6061 | STATUS_IN_SUSPEND | | |
6062 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
6063 | STATUS_FW_ERROR; | |
6064 | ||
6065 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 6066 | iwl3945_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
6067 | spin_unlock_irqrestore(&priv->lock, flags); |
6068 | ||
bb8c093b CH |
6069 | iwl3945_hw_txq_ctx_stop(priv); |
6070 | iwl3945_hw_rxq_stop(priv); | |
b481de9c ZY |
6071 | |
6072 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b CH |
6073 | if (!iwl3945_grab_nic_access(priv)) { |
6074 | iwl3945_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 6075 | APMG_CLK_VAL_DMA_CLK_RQT); |
bb8c093b | 6076 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
6077 | } |
6078 | spin_unlock_irqrestore(&priv->lock, flags); | |
6079 | ||
6080 | udelay(5); | |
6081 | ||
bb8c093b CH |
6082 | iwl3945_hw_nic_stop_master(priv); |
6083 | iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); | |
6084 | iwl3945_hw_nic_reset(priv); | |
b481de9c ZY |
6085 | |
6086 | exit: | |
bb8c093b | 6087 | memset(&priv->card_alive, 0, sizeof(struct iwl3945_alive_resp)); |
b481de9c ZY |
6088 | |
6089 | if (priv->ibss_beacon) | |
6090 | dev_kfree_skb(priv->ibss_beacon); | |
6091 | priv->ibss_beacon = NULL; | |
6092 | ||
6093 | /* clear out any free frames */ | |
bb8c093b | 6094 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
6095 | } |
6096 | ||
bb8c093b | 6097 | static void iwl3945_down(struct iwl3945_priv *priv) |
b481de9c ZY |
6098 | { |
6099 | mutex_lock(&priv->mutex); | |
bb8c093b | 6100 | __iwl3945_down(priv); |
b481de9c | 6101 | mutex_unlock(&priv->mutex); |
b24d22b1 | 6102 | |
bb8c093b | 6103 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
6104 | } |
6105 | ||
6106 | #define MAX_HW_RESTARTS 5 | |
6107 | ||
bb8c093b | 6108 | static int __iwl3945_up(struct iwl3945_priv *priv) |
b481de9c ZY |
6109 | { |
6110 | int rc, i; | |
6111 | ||
6112 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
6113 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
6114 | return -EIO; | |
6115 | } | |
6116 | ||
6117 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
6118 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
6119 | "parameter)\n"); | |
e655b9f0 ZY |
6120 | return -ENODEV; |
6121 | } | |
6122 | ||
e903fbd4 RC |
6123 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
6124 | IWL_ERROR("ucode not available for device bringup\n"); | |
6125 | return -EIO; | |
6126 | } | |
6127 | ||
e655b9f0 ZY |
6128 | /* If platform's RF_KILL switch is NOT set to KILL */ |
6129 | if (iwl3945_read32(priv, CSR_GP_CNTRL) & | |
6130 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
6131 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
6132 | else { | |
6133 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
6134 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
6135 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); | |
6136 | return -ENODEV; | |
6137 | } | |
b481de9c ZY |
6138 | } |
6139 | ||
bb8c093b | 6140 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 6141 | |
bb8c093b | 6142 | rc = iwl3945_hw_nic_init(priv); |
b481de9c ZY |
6143 | if (rc) { |
6144 | IWL_ERROR("Unable to int nic\n"); | |
6145 | return rc; | |
6146 | } | |
6147 | ||
6148 | /* make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
6149 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
6150 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
6151 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
6152 | ||
6153 | /* clear (again), then enable host interrupts */ | |
bb8c093b CH |
6154 | iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF); |
6155 | iwl3945_enable_interrupts(priv); | |
b481de9c ZY |
6156 | |
6157 | /* really make sure rfkill handshake bits are cleared */ | |
bb8c093b CH |
6158 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
6159 | iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
6160 | |
6161 | /* Copy original ucode data image from disk into backup cache. | |
6162 | * This will be used to initialize the on-board processor's | |
6163 | * data SRAM for a clean start when the runtime program first loads. */ | |
6164 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 6165 | priv->ucode_data.len); |
b481de9c | 6166 | |
e655b9f0 ZY |
6167 | /* We return success when we resume from suspend and rf_kill is on. */ |
6168 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
6169 | return 0; | |
6170 | ||
b481de9c ZY |
6171 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
6172 | ||
bb8c093b | 6173 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
6174 | |
6175 | /* load bootstrap state machine, | |
6176 | * load bootstrap program into processor's memory, | |
6177 | * prepare to load the "initialize" uCode */ | |
bb8c093b | 6178 | rc = iwl3945_load_bsm(priv); |
b481de9c ZY |
6179 | |
6180 | if (rc) { | |
6181 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc); | |
6182 | continue; | |
6183 | } | |
6184 | ||
6185 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 6186 | iwl3945_nic_start(priv); |
b481de9c | 6187 | |
b481de9c ZY |
6188 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
6189 | ||
6190 | return 0; | |
6191 | } | |
6192 | ||
6193 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 6194 | __iwl3945_down(priv); |
b481de9c ZY |
6195 | |
6196 | /* tried to restart and config the device for as long as our | |
6197 | * patience could withstand */ | |
6198 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
6199 | return -EIO; | |
6200 | } | |
6201 | ||
6202 | ||
6203 | /***************************************************************************** | |
6204 | * | |
6205 | * Workqueue callbacks | |
6206 | * | |
6207 | *****************************************************************************/ | |
6208 | ||
bb8c093b | 6209 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 6210 | { |
bb8c093b CH |
6211 | struct iwl3945_priv *priv = |
6212 | container_of(data, struct iwl3945_priv, init_alive_start.work); | |
b481de9c ZY |
6213 | |
6214 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6215 | return; | |
6216 | ||
6217 | mutex_lock(&priv->mutex); | |
bb8c093b | 6218 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
6219 | mutex_unlock(&priv->mutex); |
6220 | } | |
6221 | ||
bb8c093b | 6222 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 6223 | { |
bb8c093b CH |
6224 | struct iwl3945_priv *priv = |
6225 | container_of(data, struct iwl3945_priv, alive_start.work); | |
b481de9c ZY |
6226 | |
6227 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6228 | return; | |
6229 | ||
6230 | mutex_lock(&priv->mutex); | |
bb8c093b | 6231 | iwl3945_alive_start(priv); |
b481de9c ZY |
6232 | mutex_unlock(&priv->mutex); |
6233 | } | |
6234 | ||
bb8c093b | 6235 | static void iwl3945_bg_rf_kill(struct work_struct *work) |
b481de9c | 6236 | { |
bb8c093b | 6237 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, rf_kill); |
b481de9c ZY |
6238 | |
6239 | wake_up_interruptible(&priv->wait_command_queue); | |
6240 | ||
6241 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6242 | return; | |
6243 | ||
6244 | mutex_lock(&priv->mutex); | |
6245 | ||
bb8c093b | 6246 | if (!iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6247 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL, |
6248 | "HW and/or SW RF Kill no longer active, restarting " | |
6249 | "device\n"); | |
6250 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6251 | queue_work(priv->workqueue, &priv->restart); | |
6252 | } else { | |
6253 | ||
6254 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
6255 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
6256 | "disabled by SW switch\n"); | |
6257 | else | |
6258 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
6259 | "Kill switch must be turned off for " | |
6260 | "wireless networking to work.\n"); | |
6261 | } | |
6262 | mutex_unlock(&priv->mutex); | |
6263 | } | |
6264 | ||
6265 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) | |
6266 | ||
bb8c093b | 6267 | static void iwl3945_bg_scan_check(struct work_struct *data) |
b481de9c | 6268 | { |
bb8c093b CH |
6269 | struct iwl3945_priv *priv = |
6270 | container_of(data, struct iwl3945_priv, scan_check.work); | |
b481de9c ZY |
6271 | |
6272 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6273 | return; | |
6274 | ||
6275 | mutex_lock(&priv->mutex); | |
6276 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
6277 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6278 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, | |
6279 | "Scan completion watchdog resetting adapter (%dms)\n", | |
6280 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
15e869d8 | 6281 | |
b481de9c | 6282 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 6283 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6284 | } |
6285 | mutex_unlock(&priv->mutex); | |
6286 | } | |
6287 | ||
bb8c093b | 6288 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 6289 | { |
bb8c093b CH |
6290 | struct iwl3945_priv *priv = |
6291 | container_of(data, struct iwl3945_priv, request_scan); | |
6292 | struct iwl3945_host_cmd cmd = { | |
b481de9c | 6293 | .id = REPLY_SCAN_CMD, |
bb8c093b | 6294 | .len = sizeof(struct iwl3945_scan_cmd), |
b481de9c ZY |
6295 | .meta.flags = CMD_SIZE_HUGE, |
6296 | }; | |
6297 | int rc = 0; | |
bb8c093b | 6298 | struct iwl3945_scan_cmd *scan; |
b481de9c ZY |
6299 | struct ieee80211_conf *conf = NULL; |
6300 | u8 direct_mask; | |
8318d78a | 6301 | enum ieee80211_band band; |
b481de9c ZY |
6302 | |
6303 | conf = ieee80211_get_hw_conf(priv->hw); | |
6304 | ||
6305 | mutex_lock(&priv->mutex); | |
6306 | ||
bb8c093b | 6307 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
6308 | IWL_WARNING("request scan called when driver not ready.\n"); |
6309 | goto done; | |
6310 | } | |
6311 | ||
6312 | /* Make sure the scan wasn't cancelled before this queued work | |
6313 | * was given the chance to run... */ | |
6314 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
6315 | goto done; | |
6316 | ||
6317 | /* This should never be called or scheduled if there is currently | |
6318 | * a scan active in the hardware. */ | |
6319 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
6320 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
6321 | "Ignoring second request.\n"); | |
6322 | rc = -EIO; | |
6323 | goto done; | |
6324 | } | |
6325 | ||
6326 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
6327 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
6328 | goto done; | |
6329 | } | |
6330 | ||
6331 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
6332 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
6333 | goto done; | |
6334 | } | |
6335 | ||
bb8c093b | 6336 | if (iwl3945_is_rfkill(priv)) { |
b481de9c ZY |
6337 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
6338 | goto done; | |
6339 | } | |
6340 | ||
6341 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6342 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
6343 | goto done; | |
6344 | } | |
6345 | ||
6346 | if (!priv->scan_bands) { | |
6347 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
6348 | goto done; | |
6349 | } | |
6350 | ||
6351 | if (!priv->scan) { | |
bb8c093b | 6352 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + |
b481de9c ZY |
6353 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
6354 | if (!priv->scan) { | |
6355 | rc = -ENOMEM; | |
6356 | goto done; | |
6357 | } | |
6358 | } | |
6359 | scan = priv->scan; | |
bb8c093b | 6360 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
6361 | |
6362 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
6363 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
6364 | ||
bb8c093b | 6365 | if (iwl3945_is_associated(priv)) { |
b481de9c ZY |
6366 | u16 interval = 0; |
6367 | u32 extra; | |
6368 | u32 suspend_time = 100; | |
6369 | u32 scan_suspend_time = 100; | |
6370 | unsigned long flags; | |
6371 | ||
6372 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
6373 | ||
6374 | spin_lock_irqsave(&priv->lock, flags); | |
6375 | interval = priv->beacon_int; | |
6376 | spin_unlock_irqrestore(&priv->lock, flags); | |
6377 | ||
6378 | scan->suspend_time = 0; | |
15e869d8 | 6379 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
6380 | if (!interval) |
6381 | interval = suspend_time; | |
6382 | /* | |
6383 | * suspend time format: | |
6384 | * 0-19: beacon interval in usec (time before exec.) | |
6385 | * 20-23: 0 | |
6386 | * 24-31: number of beacons (suspend between channels) | |
6387 | */ | |
6388 | ||
6389 | extra = (suspend_time / interval) << 24; | |
6390 | scan_suspend_time = 0xFF0FFFFF & | |
6391 | (extra | ((suspend_time % interval) * 1024)); | |
6392 | ||
6393 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
6394 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
6395 | scan_suspend_time, interval); | |
6396 | } | |
6397 | ||
6398 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
6399 | if (priv->one_direct_scan) { | |
6400 | IWL_DEBUG_SCAN | |
6401 | ("Kicking off one direct scan for '%s'\n", | |
bb8c093b | 6402 | iwl3945_escape_essid(priv->direct_ssid, |
b481de9c ZY |
6403 | priv->direct_ssid_len)); |
6404 | scan->direct_scan[0].id = WLAN_EID_SSID; | |
6405 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
6406 | memcpy(scan->direct_scan[0].ssid, | |
6407 | priv->direct_ssid, priv->direct_ssid_len); | |
6408 | direct_mask = 1; | |
bb8c093b | 6409 | } else if (!iwl3945_is_associated(priv) && priv->essid_len) { |
b481de9c ZY |
6410 | scan->direct_scan[0].id = WLAN_EID_SSID; |
6411 | scan->direct_scan[0].len = priv->essid_len; | |
6412 | memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len); | |
6413 | direct_mask = 1; | |
6414 | } else | |
6415 | direct_mask = 0; | |
6416 | ||
6417 | /* We don't build a direct scan probe request; the uCode will do | |
6418 | * that based on the direct_mask added to each channel entry */ | |
6419 | scan->tx_cmd.len = cpu_to_le16( | |
bb8c093b | 6420 | iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data, |
18904f58 | 6421 | IWL_MAX_SCAN_SIZE - sizeof(*scan), 0)); |
b481de9c ZY |
6422 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
6423 | scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id; | |
6424 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
6425 | ||
6426 | /* flags + rate selection */ | |
6427 | ||
6428 | switch (priv->scan_bands) { | |
6429 | case 2: | |
6430 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; | |
6431 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
6432 | scan->good_CRC_th = 0; | |
8318d78a | 6433 | band = IEEE80211_BAND_2GHZ; |
b481de9c ZY |
6434 | break; |
6435 | ||
6436 | case 1: | |
6437 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; | |
6438 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 6439 | band = IEEE80211_BAND_5GHZ; |
b481de9c ZY |
6440 | break; |
6441 | ||
6442 | default: | |
6443 | IWL_WARNING("Invalid scan band count\n"); | |
6444 | goto done; | |
6445 | } | |
6446 | ||
6447 | /* select Rx antennas */ | |
6448 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
6449 | ||
6450 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) | |
6451 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; | |
6452 | ||
6453 | if (direct_mask) | |
6454 | IWL_DEBUG_SCAN | |
6455 | ("Initiating direct scan for %s.\n", | |
bb8c093b | 6456 | iwl3945_escape_essid(priv->essid, priv->essid_len)); |
b481de9c ZY |
6457 | else |
6458 | IWL_DEBUG_SCAN("Initiating indirect scan.\n"); | |
6459 | ||
6460 | scan->channel_count = | |
bb8c093b | 6461 | iwl3945_get_channels_for_scan( |
8318d78a | 6462 | priv, band, 1, /* active */ |
b481de9c ZY |
6463 | direct_mask, |
6464 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
6465 | ||
6466 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + | |
bb8c093b | 6467 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
6468 | cmd.data = scan; |
6469 | scan->len = cpu_to_le16(cmd.len); | |
6470 | ||
6471 | set_bit(STATUS_SCAN_HW, &priv->status); | |
bb8c093b | 6472 | rc = iwl3945_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
6473 | if (rc) |
6474 | goto done; | |
6475 | ||
6476 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
6477 | IWL_SCAN_CHECK_WATCHDOG); | |
6478 | ||
6479 | mutex_unlock(&priv->mutex); | |
6480 | return; | |
6481 | ||
6482 | done: | |
01ebd063 | 6483 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
6484 | queue_work(priv->workqueue, &priv->scan_completed); |
6485 | mutex_unlock(&priv->mutex); | |
6486 | } | |
6487 | ||
bb8c093b | 6488 | static void iwl3945_bg_up(struct work_struct *data) |
b481de9c | 6489 | { |
bb8c093b | 6490 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, up); |
b481de9c ZY |
6491 | |
6492 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6493 | return; | |
6494 | ||
6495 | mutex_lock(&priv->mutex); | |
bb8c093b | 6496 | __iwl3945_up(priv); |
b481de9c ZY |
6497 | mutex_unlock(&priv->mutex); |
6498 | } | |
6499 | ||
bb8c093b | 6500 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 6501 | { |
bb8c093b | 6502 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, restart); |
b481de9c ZY |
6503 | |
6504 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6505 | return; | |
6506 | ||
bb8c093b | 6507 | iwl3945_down(priv); |
b481de9c ZY |
6508 | queue_work(priv->workqueue, &priv->up); |
6509 | } | |
6510 | ||
bb8c093b | 6511 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 6512 | { |
bb8c093b CH |
6513 | struct iwl3945_priv *priv = |
6514 | container_of(data, struct iwl3945_priv, rx_replenish); | |
b481de9c ZY |
6515 | |
6516 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6517 | return; | |
6518 | ||
6519 | mutex_lock(&priv->mutex); | |
bb8c093b | 6520 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
6521 | mutex_unlock(&priv->mutex); |
6522 | } | |
6523 | ||
7878a5a4 MA |
6524 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
6525 | ||
bb8c093b | 6526 | static void iwl3945_bg_post_associate(struct work_struct *data) |
b481de9c | 6527 | { |
bb8c093b | 6528 | struct iwl3945_priv *priv = container_of(data, struct iwl3945_priv, |
b481de9c ZY |
6529 | post_associate.work); |
6530 | ||
6531 | int rc = 0; | |
6532 | struct ieee80211_conf *conf = NULL; | |
0795af57 | 6533 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
6534 | |
6535 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
6536 | IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__); | |
6537 | return; | |
6538 | } | |
6539 | ||
6540 | ||
0795af57 JP |
6541 | IWL_DEBUG_ASSOC("Associated as %d to: %s\n", |
6542 | priv->assoc_id, | |
6543 | print_mac(mac, priv->active_rxon.bssid_addr)); | |
b481de9c ZY |
6544 | |
6545 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6546 | return; | |
6547 | ||
6548 | mutex_lock(&priv->mutex); | |
6549 | ||
32bfd35d | 6550 | if (!priv->vif || !priv->is_open) { |
6ef89d0a MA |
6551 | mutex_unlock(&priv->mutex); |
6552 | return; | |
6553 | } | |
bb8c093b | 6554 | iwl3945_scan_cancel_timeout(priv, 200); |
15e869d8 | 6555 | |
b481de9c ZY |
6556 | conf = ieee80211_get_hw_conf(priv->hw); |
6557 | ||
6558 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6559 | iwl3945_commit_rxon(priv); |
b481de9c | 6560 | |
bb8c093b CH |
6561 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6562 | iwl3945_setup_rxon_timing(priv); | |
6563 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6564 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6565 | if (rc) | |
6566 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6567 | "Attempting to continue.\n"); | |
6568 | ||
6569 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
6570 | ||
6571 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6572 | ||
6573 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
6574 | priv->assoc_id, priv->beacon_int); | |
6575 | ||
6576 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6577 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
6578 | else | |
6579 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6580 | ||
6581 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6582 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6583 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
6584 | else | |
6585 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
6586 | ||
6587 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
6588 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
6589 | ||
6590 | } | |
6591 | ||
bb8c093b | 6592 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6593 | |
6594 | switch (priv->iw_mode) { | |
6595 | case IEEE80211_IF_TYPE_STA: | |
bb8c093b | 6596 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
6597 | break; |
6598 | ||
6599 | case IEEE80211_IF_TYPE_IBSS: | |
6600 | ||
6601 | /* clear out the station table */ | |
bb8c093b | 6602 | iwl3945_clear_stations_table(priv); |
b481de9c | 6603 | |
bb8c093b CH |
6604 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); |
6605 | iwl3945_add_station(priv, priv->bssid, 0, 0); | |
b481de9c | 6606 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 6607 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
6608 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
6609 | CMD_ASYNC); | |
bb8c093b CH |
6610 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
6611 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
6612 | |
6613 | break; | |
6614 | ||
6615 | default: | |
6616 | IWL_ERROR("%s Should not be called in %d mode\n", | |
bc434dd2 | 6617 | __FUNCTION__, priv->iw_mode); |
b481de9c ZY |
6618 | break; |
6619 | } | |
6620 | ||
bb8c093b | 6621 | iwl3945_sequence_reset(priv); |
b481de9c | 6622 | |
bb8c093b | 6623 | iwl3945_activate_qos(priv, 0); |
292ae174 | 6624 | |
7878a5a4 MA |
6625 | /* we have just associated, don't start scan too early */ |
6626 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
b481de9c ZY |
6627 | mutex_unlock(&priv->mutex); |
6628 | } | |
6629 | ||
bb8c093b | 6630 | static void iwl3945_bg_abort_scan(struct work_struct *work) |
b481de9c | 6631 | { |
bb8c093b | 6632 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, abort_scan); |
b481de9c | 6633 | |
bb8c093b | 6634 | if (!iwl3945_is_ready(priv)) |
b481de9c ZY |
6635 | return; |
6636 | ||
6637 | mutex_lock(&priv->mutex); | |
6638 | ||
6639 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 6640 | iwl3945_send_scan_abort(priv); |
b481de9c ZY |
6641 | |
6642 | mutex_unlock(&priv->mutex); | |
6643 | } | |
6644 | ||
76bb77e0 ZY |
6645 | static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
6646 | ||
bb8c093b | 6647 | static void iwl3945_bg_scan_completed(struct work_struct *work) |
b481de9c | 6648 | { |
bb8c093b CH |
6649 | struct iwl3945_priv *priv = |
6650 | container_of(work, struct iwl3945_priv, scan_completed); | |
b481de9c ZY |
6651 | |
6652 | IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n"); | |
6653 | ||
6654 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
6655 | return; | |
6656 | ||
a0646470 ZY |
6657 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
6658 | iwl3945_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw)); | |
76bb77e0 | 6659 | |
b481de9c ZY |
6660 | ieee80211_scan_completed(priv->hw); |
6661 | ||
6662 | /* Since setting the TXPOWER may have been deferred while | |
6663 | * performing the scan, fire one off */ | |
6664 | mutex_lock(&priv->mutex); | |
bb8c093b | 6665 | iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
6666 | mutex_unlock(&priv->mutex); |
6667 | } | |
6668 | ||
6669 | /***************************************************************************** | |
6670 | * | |
6671 | * mac80211 entry point functions | |
6672 | * | |
6673 | *****************************************************************************/ | |
6674 | ||
5a66926a ZY |
6675 | #define UCODE_READY_TIMEOUT (2 * HZ) |
6676 | ||
bb8c093b | 6677 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 6678 | { |
bb8c093b | 6679 | struct iwl3945_priv *priv = hw->priv; |
5a66926a | 6680 | int ret; |
b481de9c ZY |
6681 | |
6682 | IWL_DEBUG_MAC80211("enter\n"); | |
6683 | ||
5a66926a ZY |
6684 | if (pci_enable_device(priv->pci_dev)) { |
6685 | IWL_ERROR("Fail to pci_enable_device\n"); | |
6686 | return -ENODEV; | |
6687 | } | |
6688 | pci_restore_state(priv->pci_dev); | |
6689 | pci_enable_msi(priv->pci_dev); | |
6690 | ||
6691 | ret = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED, | |
6692 | DRV_NAME, priv); | |
6693 | if (ret) { | |
6694 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
6695 | goto out_disable_msi; | |
6696 | } | |
6697 | ||
b481de9c ZY |
6698 | /* we should be verifying the device is ready to be opened */ |
6699 | mutex_lock(&priv->mutex); | |
6700 | ||
5a66926a ZY |
6701 | memset(&priv->staging_rxon, 0, sizeof(struct iwl3945_rxon_cmd)); |
6702 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... | |
6703 | * ucode filename and max sizes are card-specific. */ | |
6704 | ||
6705 | if (!priv->ucode_code.len) { | |
6706 | ret = iwl3945_read_ucode(priv); | |
6707 | if (ret) { | |
6708 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
6709 | mutex_unlock(&priv->mutex); | |
6710 | goto out_release_irq; | |
6711 | } | |
6712 | } | |
b481de9c | 6713 | |
e655b9f0 | 6714 | ret = __iwl3945_up(priv); |
b481de9c ZY |
6715 | |
6716 | mutex_unlock(&priv->mutex); | |
5a66926a | 6717 | |
e655b9f0 ZY |
6718 | if (ret) |
6719 | goto out_release_irq; | |
6720 | ||
6721 | IWL_DEBUG_INFO("Start UP work.\n"); | |
6722 | ||
6723 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
6724 | return 0; | |
6725 | ||
5a66926a ZY |
6726 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
6727 | * mac80211 will not be run successfully. */ | |
6728 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
6729 | test_bit(STATUS_READY, &priv->status), | |
6730 | UCODE_READY_TIMEOUT); | |
6731 | if (!ret) { | |
6732 | if (!test_bit(STATUS_READY, &priv->status)) { | |
6733 | IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n", | |
6734 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
6735 | ret = -ETIMEDOUT; | |
6736 | goto out_release_irq; | |
6737 | } | |
6738 | } | |
6739 | ||
e655b9f0 | 6740 | priv->is_open = 1; |
b481de9c ZY |
6741 | IWL_DEBUG_MAC80211("leave\n"); |
6742 | return 0; | |
5a66926a ZY |
6743 | |
6744 | out_release_irq: | |
6745 | free_irq(priv->pci_dev->irq, priv); | |
6746 | out_disable_msi: | |
6747 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
6748 | pci_disable_device(priv->pci_dev); |
6749 | priv->is_open = 0; | |
6750 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 6751 | return ret; |
b481de9c ZY |
6752 | } |
6753 | ||
bb8c093b | 6754 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 6755 | { |
bb8c093b | 6756 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6757 | |
6758 | IWL_DEBUG_MAC80211("enter\n"); | |
6ef89d0a | 6759 | |
e655b9f0 ZY |
6760 | if (!priv->is_open) { |
6761 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
6762 | return; | |
6763 | } | |
6764 | ||
b481de9c | 6765 | priv->is_open = 0; |
5a66926a ZY |
6766 | |
6767 | if (iwl3945_is_ready_rf(priv)) { | |
e655b9f0 ZY |
6768 | /* stop mac, cancel any scan request and clear |
6769 | * RXON_FILTER_ASSOC_MSK BIT | |
6770 | */ | |
5a66926a ZY |
6771 | mutex_lock(&priv->mutex); |
6772 | iwl3945_scan_cancel_timeout(priv, 100); | |
6773 | cancel_delayed_work(&priv->post_associate); | |
fde3571f | 6774 | mutex_unlock(&priv->mutex); |
fde3571f MA |
6775 | } |
6776 | ||
5a66926a ZY |
6777 | iwl3945_down(priv); |
6778 | ||
6779 | flush_workqueue(priv->workqueue); | |
6780 | free_irq(priv->pci_dev->irq, priv); | |
6781 | pci_disable_msi(priv->pci_dev); | |
6782 | pci_save_state(priv->pci_dev); | |
6783 | pci_disable_device(priv->pci_dev); | |
6ef89d0a | 6784 | |
b481de9c | 6785 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6786 | } |
6787 | ||
bb8c093b | 6788 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, |
b481de9c ZY |
6789 | struct ieee80211_tx_control *ctl) |
6790 | { | |
bb8c093b | 6791 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
6792 | |
6793 | IWL_DEBUG_MAC80211("enter\n"); | |
6794 | ||
6795 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
6796 | IWL_DEBUG_MAC80211("leave - monitor\n"); | |
6797 | return -1; | |
6798 | } | |
6799 | ||
6800 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, | |
8318d78a | 6801 | ctl->tx_rate->bitrate); |
b481de9c | 6802 | |
bb8c093b | 6803 | if (iwl3945_tx_skb(priv, skb, ctl)) |
b481de9c ZY |
6804 | dev_kfree_skb_any(skb); |
6805 | ||
6806 | IWL_DEBUG_MAC80211("leave\n"); | |
6807 | return 0; | |
6808 | } | |
6809 | ||
bb8c093b | 6810 | static int iwl3945_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
6811 | struct ieee80211_if_init_conf *conf) |
6812 | { | |
bb8c093b | 6813 | struct iwl3945_priv *priv = hw->priv; |
b481de9c | 6814 | unsigned long flags; |
0795af57 | 6815 | DECLARE_MAC_BUF(mac); |
b481de9c | 6816 | |
32bfd35d | 6817 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 6818 | |
32bfd35d JB |
6819 | if (priv->vif) { |
6820 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
864792e3 | 6821 | return -EOPNOTSUPP; |
b481de9c ZY |
6822 | } |
6823 | ||
6824 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 6825 | priv->vif = conf->vif; |
b481de9c ZY |
6826 | |
6827 | spin_unlock_irqrestore(&priv->lock, flags); | |
6828 | ||
6829 | mutex_lock(&priv->mutex); | |
864792e3 TW |
6830 | |
6831 | if (conf->mac_addr) { | |
6832 | IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac, conf->mac_addr)); | |
6833 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); | |
6834 | } | |
6835 | ||
5a66926a ZY |
6836 | if (iwl3945_is_ready(priv)) |
6837 | iwl3945_set_mode(priv, conf->type); | |
b481de9c | 6838 | |
b481de9c ZY |
6839 | mutex_unlock(&priv->mutex); |
6840 | ||
5a66926a | 6841 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
6842 | return 0; |
6843 | } | |
6844 | ||
6845 | /** | |
bb8c093b | 6846 | * iwl3945_mac_config - mac80211 config callback |
b481de9c ZY |
6847 | * |
6848 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
6849 | * be set inappropriately and the driver currently sets the hardware up to | |
6850 | * use it whenever needed. | |
6851 | */ | |
bb8c093b | 6852 | static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) |
b481de9c | 6853 | { |
bb8c093b CH |
6854 | struct iwl3945_priv *priv = hw->priv; |
6855 | const struct iwl3945_channel_info *ch_info; | |
b481de9c | 6856 | unsigned long flags; |
76bb77e0 | 6857 | int ret = 0; |
b481de9c ZY |
6858 | |
6859 | mutex_lock(&priv->mutex); | |
8318d78a | 6860 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 6861 | |
12342c47 ZY |
6862 | priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
6863 | ||
bb8c093b | 6864 | if (!iwl3945_is_ready(priv)) { |
b481de9c | 6865 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
6866 | ret = -EIO; |
6867 | goto out; | |
b481de9c ZY |
6868 | } |
6869 | ||
bb8c093b | 6870 | if (unlikely(!iwl3945_param_disable_hw_scan && |
b481de9c | 6871 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
6872 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
6873 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 6874 | mutex_unlock(&priv->mutex); |
a0646470 | 6875 | return 0; |
b481de9c ZY |
6876 | } |
6877 | ||
6878 | spin_lock_irqsave(&priv->lock, flags); | |
6879 | ||
8318d78a JB |
6880 | ch_info = iwl3945_get_channel_info(priv, conf->channel->band, |
6881 | conf->channel->hw_value); | |
b481de9c ZY |
6882 | if (!is_channel_valid(ch_info)) { |
6883 | IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n", | |
8318d78a | 6884 | conf->channel->hw_value, conf->channel->band); |
b481de9c ZY |
6885 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
6886 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
6887 | ret = -EINVAL; |
6888 | goto out; | |
b481de9c ZY |
6889 | } |
6890 | ||
8318d78a | 6891 | iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value); |
b481de9c | 6892 | |
8318d78a | 6893 | iwl3945_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
6894 | |
6895 | /* The list of supported rates and rate mask can be different | |
6896 | * for each phymode; since the phymode may have changed, reset | |
6897 | * the rate mask to what mac80211 lists */ | |
bb8c093b | 6898 | iwl3945_set_rate(priv); |
b481de9c ZY |
6899 | |
6900 | spin_unlock_irqrestore(&priv->lock, flags); | |
6901 | ||
6902 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
6903 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 6904 | iwl3945_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 6905 | goto out; |
b481de9c ZY |
6906 | } |
6907 | #endif | |
6908 | ||
bb8c093b | 6909 | iwl3945_radio_kill_sw(priv, !conf->radio_enabled); |
b481de9c ZY |
6910 | |
6911 | if (!conf->radio_enabled) { | |
6912 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 6913 | goto out; |
b481de9c ZY |
6914 | } |
6915 | ||
bb8c093b | 6916 | if (iwl3945_is_rfkill(priv)) { |
b481de9c | 6917 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
6918 | ret = -EIO; |
6919 | goto out; | |
b481de9c ZY |
6920 | } |
6921 | ||
bb8c093b | 6922 | iwl3945_set_rate(priv); |
b481de9c ZY |
6923 | |
6924 | if (memcmp(&priv->active_rxon, | |
6925 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 6926 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6927 | else |
6928 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
6929 | ||
6930 | IWL_DEBUG_MAC80211("leave\n"); | |
6931 | ||
76bb77e0 | 6932 | out: |
a0646470 | 6933 | clear_bit(STATUS_CONF_PENDING, &priv->status); |
b481de9c | 6934 | mutex_unlock(&priv->mutex); |
76bb77e0 | 6935 | return ret; |
b481de9c ZY |
6936 | } |
6937 | ||
bb8c093b | 6938 | static void iwl3945_config_ap(struct iwl3945_priv *priv) |
b481de9c ZY |
6939 | { |
6940 | int rc = 0; | |
6941 | ||
d986bcd1 | 6942 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
6943 | return; |
6944 | ||
6945 | /* The following should be done only at AP bring up */ | |
6946 | if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) { | |
6947 | ||
6948 | /* RXON - unassoc (to set timing command) */ | |
6949 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 6950 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
6951 | |
6952 | /* RXON Timing */ | |
bb8c093b CH |
6953 | memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd)); |
6954 | iwl3945_setup_rxon_timing(priv); | |
6955 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING, | |
b481de9c ZY |
6956 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
6957 | if (rc) | |
6958 | IWL_WARNING("REPLY_RXON_TIMING failed - " | |
6959 | "Attempting to continue.\n"); | |
6960 | ||
6961 | /* FIXME: what should be the assoc_id for AP? */ | |
6962 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
6963 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
6964 | priv->staging_rxon.flags |= | |
6965 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
6966 | else | |
6967 | priv->staging_rxon.flags &= | |
6968 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
6969 | ||
6970 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
6971 | if (priv->assoc_capability & | |
6972 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
6973 | priv->staging_rxon.flags |= | |
6974 | RXON_FLG_SHORT_SLOT_MSK; | |
6975 | else | |
6976 | priv->staging_rxon.flags &= | |
6977 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6978 | ||
6979 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
6980 | priv->staging_rxon.flags &= | |
6981 | ~RXON_FLG_SHORT_SLOT_MSK; | |
6982 | } | |
6983 | /* restore RXON assoc */ | |
6984 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b CH |
6985 | iwl3945_commit_rxon(priv); |
6986 | iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0); | |
556f8db7 | 6987 | } |
bb8c093b | 6988 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
6989 | |
6990 | /* FIXME - we need to add code here to detect a totally new | |
6991 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
6992 | * clear sta table, add BCAST sta... */ | |
6993 | } | |
6994 | ||
32bfd35d JB |
6995 | static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, |
6996 | struct ieee80211_vif *vif, | |
b481de9c ZY |
6997 | struct ieee80211_if_conf *conf) |
6998 | { | |
bb8c093b | 6999 | struct iwl3945_priv *priv = hw->priv; |
0795af57 | 7000 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
7001 | unsigned long flags; |
7002 | int rc; | |
7003 | ||
7004 | if (conf == NULL) | |
7005 | return -EIO; | |
7006 | ||
4150c572 JB |
7007 | /* XXX: this MUST use conf->mac_addr */ |
7008 | ||
b481de9c ZY |
7009 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && |
7010 | (!conf->beacon || !conf->ssid_len)) { | |
7011 | IWL_DEBUG_MAC80211 | |
7012 | ("Leaving in AP mode because HostAPD is not ready.\n"); | |
7013 | return 0; | |
7014 | } | |
7015 | ||
5a66926a ZY |
7016 | if (!iwl3945_is_alive(priv)) |
7017 | return -EAGAIN; | |
7018 | ||
b481de9c ZY |
7019 | mutex_lock(&priv->mutex); |
7020 | ||
b481de9c | 7021 | if (conf->bssid) |
0795af57 JP |
7022 | IWL_DEBUG_MAC80211("bssid: %s\n", |
7023 | print_mac(mac, conf->bssid)); | |
b481de9c | 7024 | |
4150c572 JB |
7025 | /* |
7026 | * very dubious code was here; the probe filtering flag is never set: | |
7027 | * | |
b481de9c ZY |
7028 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
7029 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 JB |
7030 | */ |
7031 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) { | |
b481de9c ZY |
7032 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
7033 | mutex_unlock(&priv->mutex); | |
7034 | return 0; | |
7035 | } | |
7036 | ||
32bfd35d JB |
7037 | if (priv->vif != vif) { |
7038 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b481de9c ZY |
7039 | mutex_unlock(&priv->mutex); |
7040 | return 0; | |
7041 | } | |
7042 | ||
7043 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
7044 | if (!conf->bssid) { | |
7045 | conf->bssid = priv->mac_addr; | |
7046 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
0795af57 JP |
7047 | IWL_DEBUG_MAC80211("bssid was set to: %s\n", |
7048 | print_mac(mac, conf->bssid)); | |
b481de9c ZY |
7049 | } |
7050 | if (priv->ibss_beacon) | |
7051 | dev_kfree_skb(priv->ibss_beacon); | |
7052 | ||
7053 | priv->ibss_beacon = conf->beacon; | |
7054 | } | |
7055 | ||
fde3571f MA |
7056 | if (iwl3945_is_rfkill(priv)) |
7057 | goto done; | |
7058 | ||
b481de9c ZY |
7059 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
7060 | !is_multicast_ether_addr(conf->bssid)) { | |
7061 | /* If there is currently a HW scan going on in the background | |
7062 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 7063 | if (iwl3945_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
7064 | IWL_WARNING("Aborted scan still in progress " |
7065 | "after 100ms\n"); | |
7066 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
7067 | mutex_unlock(&priv->mutex); | |
7068 | return -EAGAIN; | |
7069 | } | |
7070 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
7071 | ||
7072 | /* TODO: Audit driver for usage of these members and see | |
7073 | * if mac80211 deprecates them (priv->bssid looks like it | |
7074 | * shouldn't be there, but I haven't scanned the IBSS code | |
7075 | * to verify) - jpk */ | |
7076 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
7077 | ||
7078 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 7079 | iwl3945_config_ap(priv); |
b481de9c | 7080 | else { |
bb8c093b | 7081 | rc = iwl3945_commit_rxon(priv); |
b481de9c | 7082 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc) |
bb8c093b | 7083 | iwl3945_add_station(priv, |
556f8db7 | 7084 | priv->active_rxon.bssid_addr, 1, 0); |
b481de9c ZY |
7085 | } |
7086 | ||
7087 | } else { | |
bb8c093b | 7088 | iwl3945_scan_cancel_timeout(priv, 100); |
b481de9c | 7089 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 7090 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7091 | } |
7092 | ||
fde3571f | 7093 | done: |
b481de9c ZY |
7094 | spin_lock_irqsave(&priv->lock, flags); |
7095 | if (!conf->ssid_len) | |
7096 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
7097 | else | |
7098 | memcpy(priv->essid, conf->ssid, conf->ssid_len); | |
7099 | ||
7100 | priv->essid_len = conf->ssid_len; | |
7101 | spin_unlock_irqrestore(&priv->lock, flags); | |
7102 | ||
7103 | IWL_DEBUG_MAC80211("leave\n"); | |
7104 | mutex_unlock(&priv->mutex); | |
7105 | ||
7106 | return 0; | |
7107 | } | |
7108 | ||
bb8c093b | 7109 | static void iwl3945_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
7110 | unsigned int changed_flags, |
7111 | unsigned int *total_flags, | |
7112 | int mc_count, struct dev_addr_list *mc_list) | |
7113 | { | |
7114 | /* | |
7115 | * XXX: dummy | |
bb8c093b | 7116 | * see also iwl3945_connection_init_rx_config |
4150c572 JB |
7117 | */ |
7118 | *total_flags = 0; | |
7119 | } | |
7120 | ||
bb8c093b | 7121 | static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
7122 | struct ieee80211_if_init_conf *conf) |
7123 | { | |
bb8c093b | 7124 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7125 | |
7126 | IWL_DEBUG_MAC80211("enter\n"); | |
7127 | ||
7128 | mutex_lock(&priv->mutex); | |
6ef89d0a | 7129 | |
fde3571f MA |
7130 | if (iwl3945_is_ready_rf(priv)) { |
7131 | iwl3945_scan_cancel_timeout(priv, 100); | |
7132 | cancel_delayed_work(&priv->post_associate); | |
7133 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
7134 | iwl3945_commit_rxon(priv); | |
7135 | } | |
32bfd35d JB |
7136 | if (priv->vif == conf->vif) { |
7137 | priv->vif = NULL; | |
b481de9c ZY |
7138 | memset(priv->bssid, 0, ETH_ALEN); |
7139 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
7140 | priv->essid_len = 0; | |
7141 | } | |
7142 | mutex_unlock(&priv->mutex); | |
7143 | ||
7144 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
7145 | } |
7146 | ||
bb8c093b | 7147 | static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
7148 | { |
7149 | int rc = 0; | |
7150 | unsigned long flags; | |
bb8c093b | 7151 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7152 | |
7153 | IWL_DEBUG_MAC80211("enter\n"); | |
7154 | ||
15e869d8 | 7155 | mutex_lock(&priv->mutex); |
b481de9c ZY |
7156 | spin_lock_irqsave(&priv->lock, flags); |
7157 | ||
bb8c093b | 7158 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7159 | rc = -EIO; |
7160 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
7161 | goto out_unlock; | |
7162 | } | |
7163 | ||
7164 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */ | |
7165 | rc = -EIO; | |
7166 | IWL_ERROR("ERROR: APs don't scan\n"); | |
7167 | goto out_unlock; | |
7168 | } | |
7169 | ||
7878a5a4 MA |
7170 | /* we don't schedule scan within next_scan_jiffies period */ |
7171 | if (priv->next_scan_jiffies && | |
7172 | time_after(priv->next_scan_jiffies, jiffies)) { | |
7173 | rc = -EAGAIN; | |
7174 | goto out_unlock; | |
7175 | } | |
b481de9c | 7176 | /* if we just finished scan ask for delay */ |
7878a5a4 MA |
7177 | if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies + |
7178 | IWL_DELAY_NEXT_SCAN, jiffies)) { | |
b481de9c ZY |
7179 | rc = -EAGAIN; |
7180 | goto out_unlock; | |
7181 | } | |
7182 | if (len) { | |
7878a5a4 | 7183 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
bb8c093b | 7184 | iwl3945_escape_essid(ssid, len), (int)len); |
b481de9c ZY |
7185 | |
7186 | priv->one_direct_scan = 1; | |
7187 | priv->direct_ssid_len = (u8) | |
7188 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
7189 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
6ef89d0a MA |
7190 | } else |
7191 | priv->one_direct_scan = 0; | |
b481de9c | 7192 | |
bb8c093b | 7193 | rc = iwl3945_scan_initiate(priv); |
b481de9c ZY |
7194 | |
7195 | IWL_DEBUG_MAC80211("leave\n"); | |
7196 | ||
7197 | out_unlock: | |
7198 | spin_unlock_irqrestore(&priv->lock, flags); | |
15e869d8 | 7199 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
7200 | |
7201 | return rc; | |
7202 | } | |
7203 | ||
bb8c093b | 7204 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
7205 | const u8 *local_addr, const u8 *addr, |
7206 | struct ieee80211_key_conf *key) | |
7207 | { | |
bb8c093b | 7208 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7209 | int rc = 0; |
7210 | u8 sta_id; | |
7211 | ||
7212 | IWL_DEBUG_MAC80211("enter\n"); | |
7213 | ||
bb8c093b | 7214 | if (!iwl3945_param_hwcrypto) { |
b481de9c ZY |
7215 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
7216 | return -EOPNOTSUPP; | |
7217 | } | |
7218 | ||
7219 | if (is_zero_ether_addr(addr)) | |
7220 | /* only support pairwise keys */ | |
7221 | return -EOPNOTSUPP; | |
7222 | ||
bb8c093b | 7223 | sta_id = iwl3945_hw_find_station(priv, addr); |
b481de9c | 7224 | if (sta_id == IWL_INVALID_STATION) { |
0795af57 JP |
7225 | DECLARE_MAC_BUF(mac); |
7226 | ||
7227 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
7228 | print_mac(mac, addr)); | |
b481de9c ZY |
7229 | return -EINVAL; |
7230 | } | |
7231 | ||
7232 | mutex_lock(&priv->mutex); | |
7233 | ||
bb8c093b | 7234 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7235 | |
b481de9c ZY |
7236 | switch (cmd) { |
7237 | case SET_KEY: | |
bb8c093b | 7238 | rc = iwl3945_update_sta_key_info(priv, key, sta_id); |
b481de9c | 7239 | if (!rc) { |
bb8c093b CH |
7240 | iwl3945_set_rxon_hwcrypto(priv, 1); |
7241 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7242 | key->hw_key_idx = sta_id; |
7243 | IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n"); | |
7244 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
7245 | } | |
7246 | break; | |
7247 | case DISABLE_KEY: | |
bb8c093b | 7248 | rc = iwl3945_clear_sta_key_info(priv, sta_id); |
b481de9c | 7249 | if (!rc) { |
bb8c093b CH |
7250 | iwl3945_set_rxon_hwcrypto(priv, 0); |
7251 | iwl3945_commit_rxon(priv); | |
b481de9c ZY |
7252 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); |
7253 | } | |
7254 | break; | |
7255 | default: | |
7256 | rc = -EINVAL; | |
7257 | } | |
7258 | ||
7259 | IWL_DEBUG_MAC80211("leave\n"); | |
7260 | mutex_unlock(&priv->mutex); | |
7261 | ||
7262 | return rc; | |
7263 | } | |
7264 | ||
bb8c093b | 7265 | static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, int queue, |
b481de9c ZY |
7266 | const struct ieee80211_tx_queue_params *params) |
7267 | { | |
bb8c093b | 7268 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7269 | unsigned long flags; |
7270 | int q; | |
b481de9c ZY |
7271 | |
7272 | IWL_DEBUG_MAC80211("enter\n"); | |
7273 | ||
bb8c093b | 7274 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7275 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7276 | return -EIO; | |
7277 | } | |
7278 | ||
7279 | if (queue >= AC_NUM) { | |
7280 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
7281 | return 0; | |
7282 | } | |
7283 | ||
b481de9c ZY |
7284 | if (!priv->qos_data.qos_enable) { |
7285 | priv->qos_data.qos_active = 0; | |
7286 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
7287 | return 0; | |
7288 | } | |
7289 | q = AC_NUM - 1 - queue; | |
7290 | ||
7291 | spin_lock_irqsave(&priv->lock, flags); | |
7292 | ||
7293 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
7294 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
7295 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
7296 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 7297 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
7298 | |
7299 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
7300 | priv->qos_data.qos_active = 1; | |
7301 | ||
7302 | spin_unlock_irqrestore(&priv->lock, flags); | |
7303 | ||
7304 | mutex_lock(&priv->mutex); | |
7305 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b CH |
7306 | iwl3945_activate_qos(priv, 1); |
7307 | else if (priv->assoc_id && iwl3945_is_associated(priv)) | |
7308 | iwl3945_activate_qos(priv, 0); | |
b481de9c ZY |
7309 | |
7310 | mutex_unlock(&priv->mutex); | |
7311 | ||
b481de9c ZY |
7312 | IWL_DEBUG_MAC80211("leave\n"); |
7313 | return 0; | |
7314 | } | |
7315 | ||
bb8c093b | 7316 | static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7317 | struct ieee80211_tx_queue_stats *stats) |
7318 | { | |
bb8c093b | 7319 | struct iwl3945_priv *priv = hw->priv; |
b481de9c | 7320 | int i, avail; |
bb8c093b CH |
7321 | struct iwl3945_tx_queue *txq; |
7322 | struct iwl3945_queue *q; | |
b481de9c ZY |
7323 | unsigned long flags; |
7324 | ||
7325 | IWL_DEBUG_MAC80211("enter\n"); | |
7326 | ||
bb8c093b | 7327 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7328 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7329 | return -EIO; | |
7330 | } | |
7331 | ||
7332 | spin_lock_irqsave(&priv->lock, flags); | |
7333 | ||
7334 | for (i = 0; i < AC_NUM; i++) { | |
7335 | txq = &priv->txq[i]; | |
7336 | q = &txq->q; | |
bb8c093b | 7337 | avail = iwl3945_queue_space(q); |
b481de9c ZY |
7338 | |
7339 | stats->data[i].len = q->n_window - avail; | |
7340 | stats->data[i].limit = q->n_window - q->high_mark; | |
7341 | stats->data[i].count = q->n_window; | |
7342 | ||
7343 | } | |
7344 | spin_unlock_irqrestore(&priv->lock, flags); | |
7345 | ||
7346 | IWL_DEBUG_MAC80211("leave\n"); | |
7347 | ||
7348 | return 0; | |
7349 | } | |
7350 | ||
bb8c093b | 7351 | static int iwl3945_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
7352 | struct ieee80211_low_level_stats *stats) |
7353 | { | |
7354 | IWL_DEBUG_MAC80211("enter\n"); | |
7355 | IWL_DEBUG_MAC80211("leave\n"); | |
7356 | ||
7357 | return 0; | |
7358 | } | |
7359 | ||
bb8c093b | 7360 | static u64 iwl3945_mac_get_tsf(struct ieee80211_hw *hw) |
b481de9c ZY |
7361 | { |
7362 | IWL_DEBUG_MAC80211("enter\n"); | |
7363 | IWL_DEBUG_MAC80211("leave\n"); | |
7364 | ||
7365 | return 0; | |
7366 | } | |
7367 | ||
bb8c093b | 7368 | static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 7369 | { |
bb8c093b | 7370 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7371 | unsigned long flags; |
7372 | ||
7373 | mutex_lock(&priv->mutex); | |
7374 | IWL_DEBUG_MAC80211("enter\n"); | |
7375 | ||
bb8c093b | 7376 | iwl3945_reset_qos(priv); |
292ae174 | 7377 | |
b481de9c ZY |
7378 | cancel_delayed_work(&priv->post_associate); |
7379 | ||
7380 | spin_lock_irqsave(&priv->lock, flags); | |
7381 | priv->assoc_id = 0; | |
7382 | priv->assoc_capability = 0; | |
7383 | priv->call_post_assoc_from_beacon = 0; | |
7384 | ||
7385 | /* new association get rid of ibss beacon skb */ | |
7386 | if (priv->ibss_beacon) | |
7387 | dev_kfree_skb(priv->ibss_beacon); | |
7388 | ||
7389 | priv->ibss_beacon = NULL; | |
7390 | ||
7391 | priv->beacon_int = priv->hw->conf.beacon_int; | |
7392 | priv->timestamp1 = 0; | |
7393 | priv->timestamp0 = 0; | |
7394 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA)) | |
7395 | priv->beacon_int = 0; | |
7396 | ||
7397 | spin_unlock_irqrestore(&priv->lock, flags); | |
7398 | ||
fde3571f MA |
7399 | if (!iwl3945_is_ready_rf(priv)) { |
7400 | IWL_DEBUG_MAC80211("leave - not ready\n"); | |
7401 | mutex_unlock(&priv->mutex); | |
7402 | return; | |
7403 | } | |
7404 | ||
15e869d8 MA |
7405 | /* we are restarting association process |
7406 | * clear RXON_FILTER_ASSOC_MSK bit | |
7407 | */ | |
7408 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
bb8c093b | 7409 | iwl3945_scan_cancel_timeout(priv, 100); |
15e869d8 | 7410 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 7411 | iwl3945_commit_rxon(priv); |
15e869d8 MA |
7412 | } |
7413 | ||
b481de9c ZY |
7414 | /* Per mac80211.h: This is only used in IBSS mode... */ |
7415 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
15e869d8 | 7416 | |
b481de9c ZY |
7417 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
7418 | mutex_unlock(&priv->mutex); | |
7419 | return; | |
b481de9c ZY |
7420 | } |
7421 | ||
7422 | priv->only_active_channel = 0; | |
7423 | ||
bb8c093b | 7424 | iwl3945_set_rate(priv); |
b481de9c ZY |
7425 | |
7426 | mutex_unlock(&priv->mutex); | |
7427 | ||
7428 | IWL_DEBUG_MAC80211("leave\n"); | |
7429 | ||
7430 | } | |
7431 | ||
bb8c093b | 7432 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb, |
b481de9c ZY |
7433 | struct ieee80211_tx_control *control) |
7434 | { | |
bb8c093b | 7435 | struct iwl3945_priv *priv = hw->priv; |
b481de9c ZY |
7436 | unsigned long flags; |
7437 | ||
7438 | mutex_lock(&priv->mutex); | |
7439 | IWL_DEBUG_MAC80211("enter\n"); | |
7440 | ||
bb8c093b | 7441 | if (!iwl3945_is_ready_rf(priv)) { |
b481de9c ZY |
7442 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
7443 | mutex_unlock(&priv->mutex); | |
7444 | return -EIO; | |
7445 | } | |
7446 | ||
7447 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
7448 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); | |
7449 | mutex_unlock(&priv->mutex); | |
7450 | return -EIO; | |
7451 | } | |
7452 | ||
7453 | spin_lock_irqsave(&priv->lock, flags); | |
7454 | ||
7455 | if (priv->ibss_beacon) | |
7456 | dev_kfree_skb(priv->ibss_beacon); | |
7457 | ||
7458 | priv->ibss_beacon = skb; | |
7459 | ||
7460 | priv->assoc_id = 0; | |
7461 | ||
7462 | IWL_DEBUG_MAC80211("leave\n"); | |
7463 | spin_unlock_irqrestore(&priv->lock, flags); | |
7464 | ||
bb8c093b | 7465 | iwl3945_reset_qos(priv); |
b481de9c ZY |
7466 | |
7467 | queue_work(priv->workqueue, &priv->post_associate.work); | |
7468 | ||
7469 | mutex_unlock(&priv->mutex); | |
7470 | ||
7471 | return 0; | |
7472 | } | |
7473 | ||
7474 | /***************************************************************************** | |
7475 | * | |
7476 | * sysfs attributes | |
7477 | * | |
7478 | *****************************************************************************/ | |
7479 | ||
c8b0e6e1 | 7480 | #ifdef CONFIG_IWL3945_DEBUG |
b481de9c ZY |
7481 | |
7482 | /* | |
7483 | * The following adds a new attribute to the sysfs representation | |
7484 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
7485 | * used for controlling the debug level. | |
7486 | * | |
7487 | * See the level definitions in iwl for details. | |
7488 | */ | |
7489 | ||
7490 | static ssize_t show_debug_level(struct device_driver *d, char *buf) | |
7491 | { | |
bb8c093b | 7492 | return sprintf(buf, "0x%08X\n", iwl3945_debug_level); |
b481de9c ZY |
7493 | } |
7494 | static ssize_t store_debug_level(struct device_driver *d, | |
7495 | const char *buf, size_t count) | |
7496 | { | |
7497 | char *p = (char *)buf; | |
7498 | u32 val; | |
7499 | ||
7500 | val = simple_strtoul(p, &p, 0); | |
7501 | if (p == buf) | |
7502 | printk(KERN_INFO DRV_NAME | |
7503 | ": %s is not in hex or decimal form.\n", buf); | |
7504 | else | |
bb8c093b | 7505 | iwl3945_debug_level = val; |
b481de9c ZY |
7506 | |
7507 | return strnlen(buf, count); | |
7508 | } | |
7509 | ||
7510 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
7511 | show_debug_level, store_debug_level); | |
7512 | ||
c8b0e6e1 | 7513 | #endif /* CONFIG_IWL3945_DEBUG */ |
b481de9c ZY |
7514 | |
7515 | static ssize_t show_rf_kill(struct device *d, | |
7516 | struct device_attribute *attr, char *buf) | |
7517 | { | |
7518 | /* | |
7519 | * 0 - RF kill not enabled | |
7520 | * 1 - SW based RF kill active (sysfs) | |
7521 | * 2 - HW based RF kill active | |
7522 | * 3 - Both HW and SW based RF kill active | |
7523 | */ | |
bb8c093b | 7524 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7525 | int val = (test_bit(STATUS_RF_KILL_SW, &priv->status) ? 0x1 : 0x0) | |
7526 | (test_bit(STATUS_RF_KILL_HW, &priv->status) ? 0x2 : 0x0); | |
7527 | ||
7528 | return sprintf(buf, "%i\n", val); | |
7529 | } | |
7530 | ||
7531 | static ssize_t store_rf_kill(struct device *d, | |
7532 | struct device_attribute *attr, | |
7533 | const char *buf, size_t count) | |
7534 | { | |
bb8c093b | 7535 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7536 | |
7537 | mutex_lock(&priv->mutex); | |
bb8c093b | 7538 | iwl3945_radio_kill_sw(priv, buf[0] == '1'); |
b481de9c ZY |
7539 | mutex_unlock(&priv->mutex); |
7540 | ||
7541 | return count; | |
7542 | } | |
7543 | ||
7544 | static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill); | |
7545 | ||
7546 | static ssize_t show_temperature(struct device *d, | |
7547 | struct device_attribute *attr, char *buf) | |
7548 | { | |
bb8c093b | 7549 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c | 7550 | |
bb8c093b | 7551 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7552 | return -EAGAIN; |
7553 | ||
bb8c093b | 7554 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
7555 | } |
7556 | ||
7557 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
7558 | ||
7559 | static ssize_t show_rs_window(struct device *d, | |
7560 | struct device_attribute *attr, | |
7561 | char *buf) | |
7562 | { | |
bb8c093b CH |
7563 | struct iwl3945_priv *priv = d->driver_data; |
7564 | return iwl3945_fill_rs_info(priv->hw, buf, IWL_AP_ID); | |
b481de9c ZY |
7565 | } |
7566 | static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL); | |
7567 | ||
7568 | static ssize_t show_tx_power(struct device *d, | |
7569 | struct device_attribute *attr, char *buf) | |
7570 | { | |
bb8c093b | 7571 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7572 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
7573 | } | |
7574 | ||
7575 | static ssize_t store_tx_power(struct device *d, | |
7576 | struct device_attribute *attr, | |
7577 | const char *buf, size_t count) | |
7578 | { | |
bb8c093b | 7579 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7580 | char *p = (char *)buf; |
7581 | u32 val; | |
7582 | ||
7583 | val = simple_strtoul(p, &p, 10); | |
7584 | if (p == buf) | |
7585 | printk(KERN_INFO DRV_NAME | |
7586 | ": %s is not in decimal form.\n", buf); | |
7587 | else | |
bb8c093b | 7588 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
7589 | |
7590 | return count; | |
7591 | } | |
7592 | ||
7593 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
7594 | ||
7595 | static ssize_t show_flags(struct device *d, | |
7596 | struct device_attribute *attr, char *buf) | |
7597 | { | |
bb8c093b | 7598 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7599 | |
7600 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
7601 | } | |
7602 | ||
7603 | static ssize_t store_flags(struct device *d, | |
7604 | struct device_attribute *attr, | |
7605 | const char *buf, size_t count) | |
7606 | { | |
bb8c093b | 7607 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7608 | u32 flags = simple_strtoul(buf, NULL, 0); |
7609 | ||
7610 | mutex_lock(&priv->mutex); | |
7611 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
7612 | /* Cancel any currently running scans... */ | |
bb8c093b | 7613 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7614 | IWL_WARNING("Could not cancel scan.\n"); |
7615 | else { | |
7616 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
7617 | flags); | |
7618 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 7619 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7620 | } |
7621 | } | |
7622 | mutex_unlock(&priv->mutex); | |
7623 | ||
7624 | return count; | |
7625 | } | |
7626 | ||
7627 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
7628 | ||
7629 | static ssize_t show_filter_flags(struct device *d, | |
7630 | struct device_attribute *attr, char *buf) | |
7631 | { | |
bb8c093b | 7632 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7633 | |
7634 | return sprintf(buf, "0x%04X\n", | |
7635 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
7636 | } | |
7637 | ||
7638 | static ssize_t store_filter_flags(struct device *d, | |
7639 | struct device_attribute *attr, | |
7640 | const char *buf, size_t count) | |
7641 | { | |
bb8c093b | 7642 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
b481de9c ZY |
7643 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
7644 | ||
7645 | mutex_lock(&priv->mutex); | |
7646 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
7647 | /* Cancel any currently running scans... */ | |
bb8c093b | 7648 | if (iwl3945_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
7649 | IWL_WARNING("Could not cancel scan.\n"); |
7650 | else { | |
7651 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
7652 | "0x%04X\n", filter_flags); | |
7653 | priv->staging_rxon.filter_flags = | |
7654 | cpu_to_le32(filter_flags); | |
bb8c093b | 7655 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
7656 | } |
7657 | } | |
7658 | mutex_unlock(&priv->mutex); | |
7659 | ||
7660 | return count; | |
7661 | } | |
7662 | ||
7663 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
7664 | store_filter_flags); | |
7665 | ||
c8b0e6e1 | 7666 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
7667 | |
7668 | static ssize_t show_measurement(struct device *d, | |
7669 | struct device_attribute *attr, char *buf) | |
7670 | { | |
bb8c093b CH |
7671 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7672 | struct iwl3945_spectrum_notification measure_report; | |
b481de9c ZY |
7673 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
7674 | u8 *data = (u8 *) & measure_report; | |
7675 | unsigned long flags; | |
7676 | ||
7677 | spin_lock_irqsave(&priv->lock, flags); | |
7678 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
7679 | spin_unlock_irqrestore(&priv->lock, flags); | |
7680 | return 0; | |
7681 | } | |
7682 | memcpy(&measure_report, &priv->measure_report, size); | |
7683 | priv->measurement_status = 0; | |
7684 | spin_unlock_irqrestore(&priv->lock, flags); | |
7685 | ||
7686 | while (size && (PAGE_SIZE - len)) { | |
7687 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7688 | PAGE_SIZE - len, 1); | |
7689 | len = strlen(buf); | |
7690 | if (PAGE_SIZE - len) | |
7691 | buf[len++] = '\n'; | |
7692 | ||
7693 | ofs += 16; | |
7694 | size -= min(size, 16U); | |
7695 | } | |
7696 | ||
7697 | return len; | |
7698 | } | |
7699 | ||
7700 | static ssize_t store_measurement(struct device *d, | |
7701 | struct device_attribute *attr, | |
7702 | const char *buf, size_t count) | |
7703 | { | |
bb8c093b | 7704 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7705 | struct ieee80211_measurement_params params = { |
7706 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
7707 | .start_time = cpu_to_le64(priv->last_tsf), | |
7708 | .duration = cpu_to_le16(1), | |
7709 | }; | |
7710 | u8 type = IWL_MEASURE_BASIC; | |
7711 | u8 buffer[32]; | |
7712 | u8 channel; | |
7713 | ||
7714 | if (count) { | |
7715 | char *p = buffer; | |
7716 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
7717 | channel = simple_strtoul(p, NULL, 0); | |
7718 | if (channel) | |
7719 | params.channel = channel; | |
7720 | ||
7721 | p = buffer; | |
7722 | while (*p && *p != ' ') | |
7723 | p++; | |
7724 | if (*p) | |
7725 | type = simple_strtoul(p + 1, NULL, 0); | |
7726 | } | |
7727 | ||
7728 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
7729 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 7730 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
7731 | |
7732 | return count; | |
7733 | } | |
7734 | ||
7735 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
7736 | show_measurement, store_measurement); | |
c8b0e6e1 | 7737 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
b481de9c | 7738 | |
b481de9c ZY |
7739 | static ssize_t store_retry_rate(struct device *d, |
7740 | struct device_attribute *attr, | |
7741 | const char *buf, size_t count) | |
7742 | { | |
bb8c093b | 7743 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7744 | |
7745 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
7746 | if (priv->retry_rate <= 0) | |
7747 | priv->retry_rate = 1; | |
7748 | ||
7749 | return count; | |
7750 | } | |
7751 | ||
7752 | static ssize_t show_retry_rate(struct device *d, | |
7753 | struct device_attribute *attr, char *buf) | |
7754 | { | |
bb8c093b | 7755 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7756 | return sprintf(buf, "%d", priv->retry_rate); |
7757 | } | |
7758 | ||
7759 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
7760 | store_retry_rate); | |
7761 | ||
7762 | static ssize_t store_power_level(struct device *d, | |
7763 | struct device_attribute *attr, | |
7764 | const char *buf, size_t count) | |
7765 | { | |
bb8c093b | 7766 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7767 | int rc; |
7768 | int mode; | |
7769 | ||
7770 | mode = simple_strtoul(buf, NULL, 0); | |
7771 | mutex_lock(&priv->mutex); | |
7772 | ||
bb8c093b | 7773 | if (!iwl3945_is_ready(priv)) { |
b481de9c ZY |
7774 | rc = -EAGAIN; |
7775 | goto out; | |
7776 | } | |
7777 | ||
7778 | if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC)) | |
7779 | mode = IWL_POWER_AC; | |
7780 | else | |
7781 | mode |= IWL_POWER_ENABLED; | |
7782 | ||
7783 | if (mode != priv->power_mode) { | |
bb8c093b | 7784 | rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode)); |
b481de9c ZY |
7785 | if (rc) { |
7786 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
7787 | goto out; | |
7788 | } | |
7789 | priv->power_mode = mode; | |
7790 | } | |
7791 | ||
7792 | rc = count; | |
7793 | ||
7794 | out: | |
7795 | mutex_unlock(&priv->mutex); | |
7796 | return rc; | |
7797 | } | |
7798 | ||
7799 | #define MAX_WX_STRING 80 | |
7800 | ||
7801 | /* Values are in microsecond */ | |
7802 | static const s32 timeout_duration[] = { | |
7803 | 350000, | |
7804 | 250000, | |
7805 | 75000, | |
7806 | 37000, | |
7807 | 25000, | |
7808 | }; | |
7809 | static const s32 period_duration[] = { | |
7810 | 400000, | |
7811 | 700000, | |
7812 | 1000000, | |
7813 | 1000000, | |
7814 | 1000000 | |
7815 | }; | |
7816 | ||
7817 | static ssize_t show_power_level(struct device *d, | |
7818 | struct device_attribute *attr, char *buf) | |
7819 | { | |
bb8c093b | 7820 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7821 | int level = IWL_POWER_LEVEL(priv->power_mode); |
7822 | char *p = buf; | |
7823 | ||
7824 | p += sprintf(p, "%d ", level); | |
7825 | switch (level) { | |
7826 | case IWL_POWER_MODE_CAM: | |
7827 | case IWL_POWER_AC: | |
7828 | p += sprintf(p, "(AC)"); | |
7829 | break; | |
7830 | case IWL_POWER_BATTERY: | |
7831 | p += sprintf(p, "(BATTERY)"); | |
7832 | break; | |
7833 | default: | |
7834 | p += sprintf(p, | |
7835 | "(Timeout %dms, Period %dms)", | |
7836 | timeout_duration[level - 1] / 1000, | |
7837 | period_duration[level - 1] / 1000); | |
7838 | } | |
7839 | ||
7840 | if (!(priv->power_mode & IWL_POWER_ENABLED)) | |
7841 | p += sprintf(p, " OFF\n"); | |
7842 | else | |
7843 | p += sprintf(p, " \n"); | |
7844 | ||
7845 | return (p - buf + 1); | |
7846 | ||
7847 | } | |
7848 | ||
7849 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
7850 | store_power_level); | |
7851 | ||
7852 | static ssize_t show_channels(struct device *d, | |
7853 | struct device_attribute *attr, char *buf) | |
7854 | { | |
8318d78a JB |
7855 | /* all this shit doesn't belong into sysfs anyway */ |
7856 | return 0; | |
b481de9c ZY |
7857 | } |
7858 | ||
7859 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
7860 | ||
7861 | static ssize_t show_statistics(struct device *d, | |
7862 | struct device_attribute *attr, char *buf) | |
7863 | { | |
bb8c093b CH |
7864 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
7865 | u32 size = sizeof(struct iwl3945_notif_statistics); | |
b481de9c ZY |
7866 | u32 len = 0, ofs = 0; |
7867 | u8 *data = (u8 *) & priv->statistics; | |
7868 | int rc = 0; | |
7869 | ||
bb8c093b | 7870 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7871 | return -EAGAIN; |
7872 | ||
7873 | mutex_lock(&priv->mutex); | |
bb8c093b | 7874 | rc = iwl3945_send_statistics_request(priv); |
b481de9c ZY |
7875 | mutex_unlock(&priv->mutex); |
7876 | ||
7877 | if (rc) { | |
7878 | len = sprintf(buf, | |
7879 | "Error sending statistics request: 0x%08X\n", rc); | |
7880 | return len; | |
7881 | } | |
7882 | ||
7883 | while (size && (PAGE_SIZE - len)) { | |
7884 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
7885 | PAGE_SIZE - len, 1); | |
7886 | len = strlen(buf); | |
7887 | if (PAGE_SIZE - len) | |
7888 | buf[len++] = '\n'; | |
7889 | ||
7890 | ofs += 16; | |
7891 | size -= min(size, 16U); | |
7892 | } | |
7893 | ||
7894 | return len; | |
7895 | } | |
7896 | ||
7897 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
7898 | ||
7899 | static ssize_t show_antenna(struct device *d, | |
7900 | struct device_attribute *attr, char *buf) | |
7901 | { | |
bb8c093b | 7902 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c | 7903 | |
bb8c093b | 7904 | if (!iwl3945_is_alive(priv)) |
b481de9c ZY |
7905 | return -EAGAIN; |
7906 | ||
7907 | return sprintf(buf, "%d\n", priv->antenna); | |
7908 | } | |
7909 | ||
7910 | static ssize_t store_antenna(struct device *d, | |
7911 | struct device_attribute *attr, | |
7912 | const char *buf, size_t count) | |
7913 | { | |
7914 | int ant; | |
bb8c093b | 7915 | struct iwl3945_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
7916 | |
7917 | if (count == 0) | |
7918 | return 0; | |
7919 | ||
7920 | if (sscanf(buf, "%1i", &ant) != 1) { | |
7921 | IWL_DEBUG_INFO("not in hex or decimal form.\n"); | |
7922 | return count; | |
7923 | } | |
7924 | ||
7925 | if ((ant >= 0) && (ant <= 2)) { | |
7926 | IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant); | |
bb8c093b | 7927 | priv->antenna = (enum iwl3945_antenna)ant; |
b481de9c ZY |
7928 | } else |
7929 | IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant); | |
7930 | ||
7931 | ||
7932 | return count; | |
7933 | } | |
7934 | ||
7935 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
7936 | ||
7937 | static ssize_t show_status(struct device *d, | |
7938 | struct device_attribute *attr, char *buf) | |
7939 | { | |
bb8c093b CH |
7940 | struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data; |
7941 | if (!iwl3945_is_alive(priv)) | |
b481de9c ZY |
7942 | return -EAGAIN; |
7943 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
7944 | } | |
7945 | ||
7946 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
7947 | ||
7948 | static ssize_t dump_error_log(struct device *d, | |
7949 | struct device_attribute *attr, | |
7950 | const char *buf, size_t count) | |
7951 | { | |
7952 | char *p = (char *)buf; | |
7953 | ||
7954 | if (p[0] == '1') | |
bb8c093b | 7955 | iwl3945_dump_nic_error_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7956 | |
7957 | return strnlen(buf, count); | |
7958 | } | |
7959 | ||
7960 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
7961 | ||
7962 | static ssize_t dump_event_log(struct device *d, | |
7963 | struct device_attribute *attr, | |
7964 | const char *buf, size_t count) | |
7965 | { | |
7966 | char *p = (char *)buf; | |
7967 | ||
7968 | if (p[0] == '1') | |
bb8c093b | 7969 | iwl3945_dump_nic_event_log((struct iwl3945_priv *)d->driver_data); |
b481de9c ZY |
7970 | |
7971 | return strnlen(buf, count); | |
7972 | } | |
7973 | ||
7974 | static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); | |
7975 | ||
7976 | /***************************************************************************** | |
7977 | * | |
7978 | * driver setup and teardown | |
7979 | * | |
7980 | *****************************************************************************/ | |
7981 | ||
bb8c093b | 7982 | static void iwl3945_setup_deferred_work(struct iwl3945_priv *priv) |
b481de9c ZY |
7983 | { |
7984 | priv->workqueue = create_workqueue(DRV_NAME); | |
7985 | ||
7986 | init_waitqueue_head(&priv->wait_command_queue); | |
7987 | ||
bb8c093b CH |
7988 | INIT_WORK(&priv->up, iwl3945_bg_up); |
7989 | INIT_WORK(&priv->restart, iwl3945_bg_restart); | |
7990 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
7991 | INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed); | |
7992 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
7993 | INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan); | |
7994 | INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill); | |
7995 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); | |
7996 | INIT_DELAYED_WORK(&priv->post_associate, iwl3945_bg_post_associate); | |
7997 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); | |
7998 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
7999 | INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check); | |
8000 | ||
8001 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
8002 | |
8003 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 8004 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
8005 | } |
8006 | ||
bb8c093b | 8007 | static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv) |
b481de9c | 8008 | { |
bb8c093b | 8009 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 8010 | |
e47eb6ad | 8011 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
8012 | cancel_delayed_work(&priv->scan_check); |
8013 | cancel_delayed_work(&priv->alive_start); | |
8014 | cancel_delayed_work(&priv->post_associate); | |
8015 | cancel_work_sync(&priv->beacon_update); | |
8016 | } | |
8017 | ||
bb8c093b | 8018 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
8019 | &dev_attr_antenna.attr, |
8020 | &dev_attr_channels.attr, | |
8021 | &dev_attr_dump_errors.attr, | |
8022 | &dev_attr_dump_events.attr, | |
8023 | &dev_attr_flags.attr, | |
8024 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 8025 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
8026 | &dev_attr_measurement.attr, |
8027 | #endif | |
8028 | &dev_attr_power_level.attr, | |
b481de9c ZY |
8029 | &dev_attr_retry_rate.attr, |
8030 | &dev_attr_rf_kill.attr, | |
8031 | &dev_attr_rs_window.attr, | |
8032 | &dev_attr_statistics.attr, | |
8033 | &dev_attr_status.attr, | |
8034 | &dev_attr_temperature.attr, | |
b481de9c ZY |
8035 | &dev_attr_tx_power.attr, |
8036 | ||
8037 | NULL | |
8038 | }; | |
8039 | ||
bb8c093b | 8040 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 8041 | .name = NULL, /* put in device directory */ |
bb8c093b | 8042 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
8043 | }; |
8044 | ||
bb8c093b CH |
8045 | static struct ieee80211_ops iwl3945_hw_ops = { |
8046 | .tx = iwl3945_mac_tx, | |
8047 | .start = iwl3945_mac_start, | |
8048 | .stop = iwl3945_mac_stop, | |
8049 | .add_interface = iwl3945_mac_add_interface, | |
8050 | .remove_interface = iwl3945_mac_remove_interface, | |
8051 | .config = iwl3945_mac_config, | |
8052 | .config_interface = iwl3945_mac_config_interface, | |
8053 | .configure_filter = iwl3945_configure_filter, | |
8054 | .set_key = iwl3945_mac_set_key, | |
8055 | .get_stats = iwl3945_mac_get_stats, | |
8056 | .get_tx_stats = iwl3945_mac_get_tx_stats, | |
8057 | .conf_tx = iwl3945_mac_conf_tx, | |
8058 | .get_tsf = iwl3945_mac_get_tsf, | |
8059 | .reset_tsf = iwl3945_mac_reset_tsf, | |
8060 | .beacon_update = iwl3945_mac_beacon_update, | |
8061 | .hw_scan = iwl3945_mac_hw_scan | |
b481de9c ZY |
8062 | }; |
8063 | ||
bb8c093b | 8064 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
8065 | { |
8066 | int err = 0; | |
bb8c093b | 8067 | struct iwl3945_priv *priv; |
b481de9c | 8068 | struct ieee80211_hw *hw; |
82b9a121 | 8069 | struct iwl_3945_cfg *cfg = (struct iwl_3945_cfg *)(ent->driver_data); |
b481de9c | 8070 | int i; |
5a66926a | 8071 | DECLARE_MAC_BUF(mac); |
b481de9c | 8072 | |
6440adb5 CB |
8073 | /* Disabling hardware scan means that mac80211 will perform scans |
8074 | * "the hard way", rather than using device's scan. */ | |
bb8c093b | 8075 | if (iwl3945_param_disable_hw_scan) { |
b481de9c | 8076 | IWL_DEBUG_INFO("Disabling hw_scan\n"); |
bb8c093b | 8077 | iwl3945_hw_ops.hw_scan = NULL; |
b481de9c ZY |
8078 | } |
8079 | ||
bb8c093b CH |
8080 | if ((iwl3945_param_queues_num > IWL_MAX_NUM_QUEUES) || |
8081 | (iwl3945_param_queues_num < IWL_MIN_NUM_QUEUES)) { | |
b481de9c ZY |
8082 | IWL_ERROR("invalid queues_num, should be between %d and %d\n", |
8083 | IWL_MIN_NUM_QUEUES, IWL_MAX_NUM_QUEUES); | |
8084 | err = -EINVAL; | |
8085 | goto out; | |
8086 | } | |
8087 | ||
8088 | /* mac80211 allocates memory for this device instance, including | |
8089 | * space for this driver's private structure */ | |
bb8c093b | 8090 | hw = ieee80211_alloc_hw(sizeof(struct iwl3945_priv), &iwl3945_hw_ops); |
b481de9c ZY |
8091 | if (hw == NULL) { |
8092 | IWL_ERROR("Can not allocate network device\n"); | |
8093 | err = -ENOMEM; | |
8094 | goto out; | |
8095 | } | |
8096 | SET_IEEE80211_DEV(hw, &pdev->dev); | |
8097 | ||
f51359a8 JB |
8098 | hw->rate_control_algorithm = "iwl-3945-rs"; |
8099 | ||
b481de9c ZY |
8100 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); |
8101 | priv = hw->priv; | |
8102 | priv->hw = hw; | |
8103 | ||
8104 | priv->pci_dev = pdev; | |
82b9a121 | 8105 | priv->cfg = cfg; |
6440adb5 CB |
8106 | |
8107 | /* Select antenna (may be helpful if only one antenna is connected) */ | |
bb8c093b | 8108 | priv->antenna = (enum iwl3945_antenna)iwl3945_param_antenna; |
c8b0e6e1 | 8109 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8110 | iwl3945_debug_level = iwl3945_param_debug; |
b481de9c ZY |
8111 | atomic_set(&priv->restrict_refcnt, 0); |
8112 | #endif | |
8113 | priv->retry_rate = 1; | |
8114 | ||
8115 | priv->ibss_beacon = NULL; | |
8116 | ||
8117 | /* Tell mac80211 and its clients (e.g. Wireless Extensions) | |
8118 | * the range of signal quality values that we'll provide. | |
8119 | * Negative values for level/noise indicate that we'll provide dBm. | |
8120 | * For WE, at least, non-0 values here *enable* display of values | |
8121 | * in app (iwconfig). */ | |
8122 | hw->max_rssi = -20; /* signal level, negative indicates dBm */ | |
8123 | hw->max_noise = -20; /* noise level, negative indicates dBm */ | |
8124 | hw->max_signal = 100; /* link quality indication (%) */ | |
8125 | ||
8126 | /* Tell mac80211 our Tx characteristics */ | |
8127 | hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE; | |
8128 | ||
6440adb5 | 8129 | /* 4 EDCA QOS priorities */ |
b481de9c ZY |
8130 | hw->queues = 4; |
8131 | ||
8132 | spin_lock_init(&priv->lock); | |
8133 | spin_lock_init(&priv->power_data.lock); | |
8134 | spin_lock_init(&priv->sta_lock); | |
8135 | spin_lock_init(&priv->hcmd_lock); | |
8136 | ||
8137 | for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) | |
8138 | INIT_LIST_HEAD(&priv->ibss_mac_hash[i]); | |
8139 | ||
8140 | INIT_LIST_HEAD(&priv->free_frames); | |
8141 | ||
8142 | mutex_init(&priv->mutex); | |
8143 | if (pci_enable_device(pdev)) { | |
8144 | err = -ENODEV; | |
8145 | goto out_ieee80211_free_hw; | |
8146 | } | |
8147 | ||
8148 | pci_set_master(pdev); | |
8149 | ||
6440adb5 | 8150 | /* Clear the driver's (not device's) station table */ |
bb8c093b | 8151 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
8152 | |
8153 | priv->data_retry_limit = -1; | |
8154 | priv->ieee_channels = NULL; | |
8155 | priv->ieee_rates = NULL; | |
8318d78a | 8156 | priv->band = IEEE80211_BAND_2GHZ; |
b481de9c ZY |
8157 | |
8158 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
8159 | if (!err) | |
8160 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
8161 | if (err) { | |
8162 | printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); | |
8163 | goto out_pci_disable_device; | |
8164 | } | |
8165 | ||
8166 | pci_set_drvdata(pdev, priv); | |
8167 | err = pci_request_regions(pdev, DRV_NAME); | |
8168 | if (err) | |
8169 | goto out_pci_disable_device; | |
6440adb5 | 8170 | |
b481de9c ZY |
8171 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
8172 | * PCI Tx retries from interfering with C3 CPU state */ | |
8173 | pci_write_config_byte(pdev, 0x41, 0x00); | |
6440adb5 | 8174 | |
b481de9c ZY |
8175 | priv->hw_base = pci_iomap(pdev, 0, 0); |
8176 | if (!priv->hw_base) { | |
8177 | err = -ENODEV; | |
8178 | goto out_pci_release_regions; | |
8179 | } | |
8180 | ||
8181 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
8182 | (unsigned long long) pci_resource_len(pdev, 0)); | |
8183 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
8184 | ||
8185 | /* Initialize module parameter values here */ | |
8186 | ||
6440adb5 | 8187 | /* Disable radio (SW RF KILL) via parameter when loading driver */ |
bb8c093b | 8188 | if (iwl3945_param_disable) { |
b481de9c ZY |
8189 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
8190 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
8191 | } | |
8192 | ||
8193 | priv->iw_mode = IEEE80211_IF_TYPE_STA; | |
8194 | ||
b481de9c | 8195 | printk(KERN_INFO DRV_NAME |
82b9a121 | 8196 | ": Detected Intel Wireless WiFi Link %s\n", priv->cfg->name); |
b481de9c ZY |
8197 | |
8198 | /* Device-specific setup */ | |
bb8c093b | 8199 | if (iwl3945_hw_set_hw_setting(priv)) { |
b481de9c | 8200 | IWL_ERROR("failed to set hw settings\n"); |
b481de9c ZY |
8201 | goto out_iounmap; |
8202 | } | |
8203 | ||
bb8c093b | 8204 | if (iwl3945_param_qos_enable) |
b481de9c ZY |
8205 | priv->qos_data.qos_enable = 1; |
8206 | ||
bb8c093b | 8207 | iwl3945_reset_qos(priv); |
b481de9c ZY |
8208 | |
8209 | priv->qos_data.qos_active = 0; | |
8210 | priv->qos_data.qos_cap.val = 0; | |
b481de9c | 8211 | |
8318d78a | 8212 | iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); |
bb8c093b CH |
8213 | iwl3945_setup_deferred_work(priv); |
8214 | iwl3945_setup_rx_handlers(priv); | |
b481de9c ZY |
8215 | |
8216 | priv->rates_mask = IWL_RATES_MASK; | |
8217 | /* If power management is turned on, default to AC mode */ | |
8218 | priv->power_mode = IWL_POWER_AC; | |
8219 | priv->user_txpower_limit = IWL_DEFAULT_TX_POWER; | |
8220 | ||
bb8c093b | 8221 | iwl3945_disable_interrupts(priv); |
49df2b33 | 8222 | |
bb8c093b | 8223 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c ZY |
8224 | if (err) { |
8225 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
b481de9c ZY |
8226 | goto out_release_irq; |
8227 | } | |
8228 | ||
5a66926a ZY |
8229 | /* nic init */ |
8230 | iwl3945_set_bit(priv, CSR_GIO_CHICKEN_BITS, | |
8231 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); | |
8232 | ||
8233 | iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); | |
8234 | err = iwl3945_poll_bit(priv, CSR_GP_CNTRL, | |
8235 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, | |
8236 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
8237 | if (err < 0) { | |
8238 | IWL_DEBUG_INFO("Failed to init the card\n"); | |
8239 | goto out_remove_sysfs; | |
8240 | } | |
8241 | /* Read the EEPROM */ | |
8242 | err = iwl3945_eeprom_init(priv); | |
b481de9c | 8243 | if (err) { |
5a66926a ZY |
8244 | IWL_ERROR("Unable to init EEPROM\n"); |
8245 | goto out_remove_sysfs; | |
b481de9c | 8246 | } |
5a66926a ZY |
8247 | /* MAC Address location in EEPROM same for 3945/4965 */ |
8248 | get_eeprom_mac(priv, priv->mac_addr); | |
8249 | IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr)); | |
8250 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
b481de9c | 8251 | |
849e0dce RC |
8252 | err = iwl3945_init_channel_map(priv); |
8253 | if (err) { | |
8254 | IWL_ERROR("initializing regulatory failed: %d\n", err); | |
8255 | goto out_remove_sysfs; | |
8256 | } | |
8257 | ||
8258 | err = iwl3945_init_geos(priv); | |
8259 | if (err) { | |
8260 | IWL_ERROR("initializing geos failed: %d\n", err); | |
8261 | goto out_free_channel_map; | |
8262 | } | |
849e0dce | 8263 | |
5a66926a ZY |
8264 | iwl3945_rate_control_register(priv->hw); |
8265 | err = ieee80211_register_hw(priv->hw); | |
8266 | if (err) { | |
8267 | IWL_ERROR("Failed to register network device (error %d)\n", err); | |
849e0dce | 8268 | goto out_free_geos; |
5a66926a | 8269 | } |
b481de9c | 8270 | |
5a66926a ZY |
8271 | priv->hw->conf.beacon_int = 100; |
8272 | priv->mac80211_registered = 1; | |
8273 | pci_save_state(pdev); | |
8274 | pci_disable_device(pdev); | |
b481de9c ZY |
8275 | |
8276 | return 0; | |
8277 | ||
849e0dce RC |
8278 | out_free_geos: |
8279 | iwl3945_free_geos(priv); | |
8280 | out_free_channel_map: | |
8281 | iwl3945_free_channel_map(priv); | |
5a66926a | 8282 | out_remove_sysfs: |
bb8c093b | 8283 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c ZY |
8284 | |
8285 | out_release_irq: | |
b481de9c ZY |
8286 | destroy_workqueue(priv->workqueue); |
8287 | priv->workqueue = NULL; | |
bb8c093b | 8288 | iwl3945_unset_hw_setting(priv); |
b481de9c ZY |
8289 | |
8290 | out_iounmap: | |
8291 | pci_iounmap(pdev, priv->hw_base); | |
8292 | out_pci_release_regions: | |
8293 | pci_release_regions(pdev); | |
8294 | out_pci_disable_device: | |
8295 | pci_disable_device(pdev); | |
8296 | pci_set_drvdata(pdev, NULL); | |
8297 | out_ieee80211_free_hw: | |
8298 | ieee80211_free_hw(priv->hw); | |
8299 | out: | |
8300 | return err; | |
8301 | } | |
8302 | ||
bb8c093b | 8303 | static void iwl3945_pci_remove(struct pci_dev *pdev) |
b481de9c | 8304 | { |
bb8c093b | 8305 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c ZY |
8306 | struct list_head *p, *q; |
8307 | int i; | |
8308 | ||
8309 | if (!priv) | |
8310 | return; | |
8311 | ||
8312 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
8313 | ||
b481de9c | 8314 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 8315 | |
bb8c093b | 8316 | iwl3945_down(priv); |
b481de9c ZY |
8317 | |
8318 | /* Free MAC hash list for ADHOC */ | |
8319 | for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) { | |
8320 | list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { | |
8321 | list_del(p); | |
bb8c093b | 8322 | kfree(list_entry(p, struct iwl3945_ibss_seq, list)); |
b481de9c ZY |
8323 | } |
8324 | } | |
8325 | ||
bb8c093b | 8326 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 8327 | |
bb8c093b | 8328 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
8329 | |
8330 | if (priv->rxq.bd) | |
bb8c093b CH |
8331 | iwl3945_rx_queue_free(priv, &priv->rxq); |
8332 | iwl3945_hw_txq_ctx_free(priv); | |
b481de9c | 8333 | |
bb8c093b CH |
8334 | iwl3945_unset_hw_setting(priv); |
8335 | iwl3945_clear_stations_table(priv); | |
b481de9c ZY |
8336 | |
8337 | if (priv->mac80211_registered) { | |
8338 | ieee80211_unregister_hw(priv->hw); | |
bb8c093b | 8339 | iwl3945_rate_control_unregister(priv->hw); |
b481de9c ZY |
8340 | } |
8341 | ||
6ef89d0a MA |
8342 | /*netif_stop_queue(dev); */ |
8343 | flush_workqueue(priv->workqueue); | |
8344 | ||
bb8c093b | 8345 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
b481de9c ZY |
8346 | * priv->workqueue... so we can't take down the workqueue |
8347 | * until now... */ | |
8348 | destroy_workqueue(priv->workqueue); | |
8349 | priv->workqueue = NULL; | |
8350 | ||
b481de9c ZY |
8351 | pci_iounmap(pdev, priv->hw_base); |
8352 | pci_release_regions(pdev); | |
8353 | pci_disable_device(pdev); | |
8354 | pci_set_drvdata(pdev, NULL); | |
8355 | ||
849e0dce RC |
8356 | iwl3945_free_channel_map(priv); |
8357 | iwl3945_free_geos(priv); | |
b481de9c ZY |
8358 | |
8359 | if (priv->ibss_beacon) | |
8360 | dev_kfree_skb(priv->ibss_beacon); | |
8361 | ||
8362 | ieee80211_free_hw(priv->hw); | |
8363 | } | |
8364 | ||
8365 | #ifdef CONFIG_PM | |
8366 | ||
bb8c093b | 8367 | static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 8368 | { |
bb8c093b | 8369 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8370 | |
e655b9f0 ZY |
8371 | if (priv->is_open) { |
8372 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
8373 | iwl3945_mac_stop(priv->hw); | |
8374 | priv->is_open = 1; | |
8375 | } | |
b481de9c | 8376 | |
b481de9c ZY |
8377 | pci_set_power_state(pdev, PCI_D3hot); |
8378 | ||
b481de9c ZY |
8379 | return 0; |
8380 | } | |
8381 | ||
bb8c093b | 8382 | static int iwl3945_pci_resume(struct pci_dev *pdev) |
b481de9c | 8383 | { |
bb8c093b | 8384 | struct iwl3945_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 8385 | |
b481de9c | 8386 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 8387 | |
e655b9f0 ZY |
8388 | if (priv->is_open) |
8389 | iwl3945_mac_start(priv->hw); | |
b481de9c | 8390 | |
e655b9f0 | 8391 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
8392 | return 0; |
8393 | } | |
8394 | ||
8395 | #endif /* CONFIG_PM */ | |
8396 | ||
8397 | /***************************************************************************** | |
8398 | * | |
8399 | * driver and module entry point | |
8400 | * | |
8401 | *****************************************************************************/ | |
8402 | ||
bb8c093b | 8403 | static struct pci_driver iwl3945_driver = { |
b481de9c | 8404 | .name = DRV_NAME, |
bb8c093b CH |
8405 | .id_table = iwl3945_hw_card_ids, |
8406 | .probe = iwl3945_pci_probe, | |
8407 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 8408 | #ifdef CONFIG_PM |
bb8c093b CH |
8409 | .suspend = iwl3945_pci_suspend, |
8410 | .resume = iwl3945_pci_resume, | |
b481de9c ZY |
8411 | #endif |
8412 | }; | |
8413 | ||
bb8c093b | 8414 | static int __init iwl3945_init(void) |
b481de9c ZY |
8415 | { |
8416 | ||
8417 | int ret; | |
8418 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
8419 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
bb8c093b | 8420 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c ZY |
8421 | if (ret) { |
8422 | IWL_ERROR("Unable to initialize PCI module\n"); | |
8423 | return ret; | |
8424 | } | |
c8b0e6e1 | 8425 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8426 | ret = driver_create_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c ZY |
8427 | if (ret) { |
8428 | IWL_ERROR("Unable to create driver sysfs file\n"); | |
bb8c093b | 8429 | pci_unregister_driver(&iwl3945_driver); |
b481de9c ZY |
8430 | return ret; |
8431 | } | |
8432 | #endif | |
8433 | ||
8434 | return ret; | |
8435 | } | |
8436 | ||
bb8c093b | 8437 | static void __exit iwl3945_exit(void) |
b481de9c | 8438 | { |
c8b0e6e1 | 8439 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 8440 | driver_remove_file(&iwl3945_driver.driver, &driver_attr_debug_level); |
b481de9c | 8441 | #endif |
bb8c093b | 8442 | pci_unregister_driver(&iwl3945_driver); |
b481de9c ZY |
8443 | } |
8444 | ||
bb8c093b | 8445 | module_param_named(antenna, iwl3945_param_antenna, int, 0444); |
b481de9c | 8446 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
bb8c093b | 8447 | module_param_named(disable, iwl3945_param_disable, int, 0444); |
b481de9c | 8448 | MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); |
bb8c093b | 8449 | module_param_named(hwcrypto, iwl3945_param_hwcrypto, int, 0444); |
b481de9c ZY |
8450 | MODULE_PARM_DESC(hwcrypto, |
8451 | "using hardware crypto engine (default 0 [software])\n"); | |
bb8c093b | 8452 | module_param_named(debug, iwl3945_param_debug, int, 0444); |
b481de9c | 8453 | MODULE_PARM_DESC(debug, "debug output mask"); |
bb8c093b | 8454 | module_param_named(disable_hw_scan, iwl3945_param_disable_hw_scan, int, 0444); |
b481de9c ZY |
8455 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
8456 | ||
bb8c093b | 8457 | module_param_named(queues_num, iwl3945_param_queues_num, int, 0444); |
b481de9c ZY |
8458 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
8459 | ||
8460 | /* QoS */ | |
bb8c093b | 8461 | module_param_named(qos_enable, iwl3945_param_qos_enable, int, 0444); |
b481de9c ZY |
8462 | MODULE_PARM_DESC(qos_enable, "enable all QoS functionality"); |
8463 | ||
bb8c093b CH |
8464 | module_exit(iwl3945_exit); |
8465 | module_init(iwl3945_init); |