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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
32 | #include <linux/version.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/dma-mapping.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/skbuff.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/wireless.h> | |
40 | #include <linux/firmware.h> | |
b481de9c ZY |
41 | #include <linux/etherdevice.h> |
42 | #include <linux/if_arp.h> | |
43 | ||
b481de9c ZY |
44 | #include <net/mac80211.h> |
45 | ||
46 | #include <asm/div64.h> | |
47 | ||
6bc913bd | 48 | #include "iwl-eeprom.h" |
3e0d4cb1 | 49 | #include "iwl-dev.h" |
fee1247a | 50 | #include "iwl-core.h" |
3395f6e9 | 51 | #include "iwl-io.h" |
b481de9c | 52 | #include "iwl-helpers.h" |
6974e363 | 53 | #include "iwl-sta.h" |
f0832f13 | 54 | #include "iwl-calib.h" |
b481de9c | 55 | |
416e1438 | 56 | |
b481de9c ZY |
57 | /****************************************************************************** |
58 | * | |
59 | * module boiler plate | |
60 | * | |
61 | ******************************************************************************/ | |
62 | ||
b481de9c ZY |
63 | /* |
64 | * module name, copyright, version, etc. | |
65 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
66 | */ | |
67 | ||
68 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux" | |
69 | ||
0a6857e7 | 70 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
71 | #define VD "d" |
72 | #else | |
73 | #define VD | |
74 | #endif | |
75 | ||
c8b0e6e1 | 76 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
77 | #define VS "s" |
78 | #else | |
79 | #define VS | |
80 | #endif | |
81 | ||
df48c323 | 82 | #define DRV_VERSION IWLWIFI_VERSION VD VS |
b481de9c | 83 | |
b481de9c ZY |
84 | |
85 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
86 | MODULE_VERSION(DRV_VERSION); | |
87 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
88 | MODULE_LICENSE("GPL"); | |
89 | ||
d1141dfb | 90 | static const struct ieee80211_supported_band *iwl_get_hw_mode( |
c79dd5b5 | 91 | struct iwl_priv *priv, enum ieee80211_band band) |
b481de9c | 92 | { |
8318d78a | 93 | return priv->hw->wiphy->bands[band]; |
b481de9c ZY |
94 | } |
95 | ||
bb8c093b | 96 | static int iwl4965_is_empty_essid(const char *essid, int essid_len) |
b481de9c ZY |
97 | { |
98 | /* Single white space is for Linksys APs */ | |
99 | if (essid_len == 1 && essid[0] == ' ') | |
100 | return 1; | |
101 | ||
102 | /* Otherwise, if the entire essid is 0, we assume it is hidden */ | |
103 | while (essid_len) { | |
104 | essid_len--; | |
105 | if (essid[essid_len] != '\0') | |
106 | return 0; | |
107 | } | |
108 | ||
109 | return 1; | |
110 | } | |
111 | ||
bb8c093b | 112 | static const char *iwl4965_escape_essid(const char *essid, u8 essid_len) |
b481de9c ZY |
113 | { |
114 | static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; | |
115 | const char *s = essid; | |
116 | char *d = escaped; | |
117 | ||
bb8c093b | 118 | if (iwl4965_is_empty_essid(essid, essid_len)) { |
b481de9c ZY |
119 | memcpy(escaped, "<hidden>", sizeof("<hidden>")); |
120 | return escaped; | |
121 | } | |
122 | ||
123 | essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); | |
124 | while (essid_len--) { | |
125 | if (*s == '\0') { | |
126 | *d++ = '\\'; | |
127 | *d++ = '0'; | |
128 | s++; | |
129 | } else | |
130 | *d++ = *s++; | |
131 | } | |
132 | *d = '\0'; | |
133 | return escaped; | |
134 | } | |
135 | ||
b481de9c | 136 | /*************** STATION TABLE MANAGEMENT **** |
9fbab516 | 137 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
138 | * the functionality provided here |
139 | */ | |
140 | ||
141 | /**************************************************************/ | |
142 | ||
01ebd063 | 143 | #if 0 /* temporary disable till we add real remove station */ |
6440adb5 CB |
144 | /** |
145 | * iwl4965_remove_station - Remove driver's knowledge of station. | |
146 | * | |
147 | * NOTE: This does not remove station from device's station table. | |
148 | */ | |
c79dd5b5 | 149 | static u8 iwl4965_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap) |
b481de9c ZY |
150 | { |
151 | int index = IWL_INVALID_STATION; | |
152 | int i; | |
153 | unsigned long flags; | |
154 | ||
155 | spin_lock_irqsave(&priv->sta_lock, flags); | |
156 | ||
157 | if (is_ap) | |
158 | index = IWL_AP_ID; | |
159 | else if (is_broadcast_ether_addr(addr)) | |
5425e490 | 160 | index = priv->hw_params.bcast_sta_id; |
b481de9c | 161 | else |
5425e490 | 162 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) |
b481de9c ZY |
163 | if (priv->stations[i].used && |
164 | !compare_ether_addr(priv->stations[i].sta.sta.addr, | |
165 | addr)) { | |
166 | index = i; | |
167 | break; | |
168 | } | |
169 | ||
170 | if (unlikely(index == IWL_INVALID_STATION)) | |
171 | goto out; | |
172 | ||
173 | if (priv->stations[index].used) { | |
174 | priv->stations[index].used = 0; | |
175 | priv->num_stations--; | |
176 | } | |
177 | ||
178 | BUG_ON(priv->num_stations < 0); | |
179 | ||
180 | out: | |
181 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
182 | return 0; | |
183 | } | |
556f8db7 | 184 | #endif |
b481de9c | 185 | |
b481de9c | 186 | |
b481de9c | 187 | |
deb09c43 EG |
188 | static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
189 | { | |
c1adf9fb | 190 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
deb09c43 EG |
191 | |
192 | if (hw_decrypt) | |
193 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
194 | else | |
195 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
196 | ||
197 | } | |
198 | ||
b481de9c | 199 | /** |
bb8c093b | 200 | * iwl4965_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
201 | * |
202 | * NOTE: This is really only useful during development and can eventually | |
203 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
204 | * making changes | |
205 | */ | |
c1adf9fb | 206 | static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon) |
b481de9c ZY |
207 | { |
208 | int error = 0; | |
209 | int counter = 1; | |
210 | ||
211 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
212 | error |= le32_to_cpu(rxon->flags & | |
213 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
214 | RXON_FLG_RADAR_DETECT_MSK)); | |
215 | if (error) | |
216 | IWL_WARNING("check 24G fields %d | %d\n", | |
217 | counter++, error); | |
218 | } else { | |
219 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
220 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
221 | if (error) | |
222 | IWL_WARNING("check 52 fields %d | %d\n", | |
223 | counter++, error); | |
224 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
225 | if (error) | |
226 | IWL_WARNING("check 52 CCK %d | %d\n", | |
227 | counter++, error); | |
228 | } | |
229 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
230 | if (error) | |
231 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
232 | ||
233 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
234 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
235 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
236 | if (error) | |
237 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
238 | ||
239 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
240 | if (error) | |
241 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
242 | ||
243 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
244 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
245 | if (error) | |
246 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
247 | counter++, error); | |
248 | ||
249 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
250 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
251 | if (error) | |
252 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
253 | counter++, error); | |
254 | ||
255 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
256 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
257 | if (error) | |
258 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
259 | counter++, error); | |
260 | ||
261 | if (error) | |
262 | IWL_WARNING("Tuning to channel %d\n", | |
263 | le16_to_cpu(rxon->channel)); | |
264 | ||
265 | if (error) { | |
bb8c093b | 266 | IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
267 | return -1; |
268 | } | |
269 | return 0; | |
270 | } | |
271 | ||
272 | /** | |
9fbab516 | 273 | * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 274 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 275 | * |
9fbab516 BC |
276 | * If the RXON structure is changing enough to require a new tune, |
277 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
278 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 279 | */ |
c79dd5b5 | 280 | static int iwl4965_full_rxon_required(struct iwl_priv *priv) |
b481de9c ZY |
281 | { |
282 | ||
283 | /* These items are only settable from the full RXON command */ | |
284 | if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) || | |
285 | compare_ether_addr(priv->staging_rxon.bssid_addr, | |
286 | priv->active_rxon.bssid_addr) || | |
287 | compare_ether_addr(priv->staging_rxon.node_addr, | |
288 | priv->active_rxon.node_addr) || | |
289 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
290 | priv->active_rxon.wlap_bssid_addr) || | |
291 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
292 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
293 | (priv->staging_rxon.air_propagation != | |
294 | priv->active_rxon.air_propagation) || | |
295 | (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != | |
296 | priv->active_rxon.ofdm_ht_single_stream_basic_rates) || | |
297 | (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != | |
298 | priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || | |
299 | (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) || | |
300 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
301 | return 1; | |
302 | ||
303 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
304 | * be updated with the RXON_ASSOC command -- however only some | |
305 | * flag transitions are allowed using RXON_ASSOC */ | |
306 | ||
307 | /* Check if we are not switching bands */ | |
308 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
309 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
310 | return 1; | |
311 | ||
312 | /* Check if we are switching association toggle */ | |
313 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
314 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
315 | return 1; | |
316 | ||
317 | return 0; | |
318 | } | |
319 | ||
b481de9c | 320 | /** |
bb8c093b | 321 | * iwl4965_commit_rxon - commit staging_rxon to hardware |
b481de9c | 322 | * |
01ebd063 | 323 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
324 | * the active_rxon structure is updated with the new data. This |
325 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
326 | * a HW tune is required based on the RXON structure changes. | |
327 | */ | |
c79dd5b5 | 328 | static int iwl4965_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
329 | { |
330 | /* cast away the const for active_rxon in this function */ | |
c1adf9fb | 331 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
0795af57 | 332 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
333 | int rc = 0; |
334 | ||
fee1247a | 335 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
336 | return -1; |
337 | ||
338 | /* always get timestamp with Rx frame */ | |
339 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
340 | ||
bb8c093b | 341 | rc = iwl4965_check_rxon_cmd(&priv->staging_rxon); |
b481de9c ZY |
342 | if (rc) { |
343 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); | |
344 | return -EINVAL; | |
345 | } | |
346 | ||
347 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 348 | * iwl4965_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 349 | * and other flags for the current radio configuration. */ |
bb8c093b | 350 | if (!iwl4965_full_rxon_required(priv)) { |
7e8c519e | 351 | rc = iwl_send_rxon_assoc(priv); |
b481de9c ZY |
352 | if (rc) { |
353 | IWL_ERROR("Error setting RXON_ASSOC " | |
354 | "configuration (%d).\n", rc); | |
355 | return rc; | |
356 | } | |
357 | ||
358 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
363 | /* station table will be cleared */ | |
364 | priv->assoc_station_added = 0; | |
365 | ||
b481de9c ZY |
366 | /* If we are currently associated and the new config requires |
367 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
368 | * we must clear the associated from the active configuration | |
369 | * before we apply the new config */ | |
3109ece1 | 370 | if (iwl_is_associated(priv) && |
b481de9c ZY |
371 | (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) { |
372 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); | |
373 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
374 | ||
857485c0 | 375 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 376 | sizeof(struct iwl_rxon_cmd), |
b481de9c ZY |
377 | &priv->active_rxon); |
378 | ||
379 | /* If the mask clearing failed then we set | |
380 | * active_rxon back to what it was previously */ | |
381 | if (rc) { | |
382 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
383 | IWL_ERROR("Error clearing ASSOC_MSK on current " | |
384 | "configuration (%d).\n", rc); | |
385 | return rc; | |
386 | } | |
b481de9c ZY |
387 | } |
388 | ||
389 | IWL_DEBUG_INFO("Sending RXON\n" | |
390 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
391 | "* channel = %d\n" | |
0795af57 | 392 | "* bssid = %s\n", |
b481de9c ZY |
393 | ((priv->staging_rxon.filter_flags & |
394 | RXON_FILTER_ASSOC_MSK) ? "" : "out"), | |
395 | le16_to_cpu(priv->staging_rxon.channel), | |
0795af57 | 396 | print_mac(mac, priv->staging_rxon.bssid_addr)); |
b481de9c | 397 | |
099b40b7 | 398 | iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
b481de9c | 399 | /* Apply the new configuration */ |
857485c0 | 400 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 401 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
b481de9c ZY |
402 | if (rc) { |
403 | IWL_ERROR("Error setting new configuration (%d).\n", rc); | |
404 | return rc; | |
405 | } | |
406 | ||
bf85ea4f | 407 | iwlcore_clear_stations_table(priv); |
556f8db7 | 408 | |
b481de9c ZY |
409 | if (!priv->error_recovering) |
410 | priv->start_calib = 0; | |
411 | ||
f0832f13 | 412 | iwl_init_sensitivity(priv); |
b481de9c ZY |
413 | |
414 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
415 | ||
416 | /* If we issue a new RXON command which required a tune then we must | |
417 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
bb8c093b | 418 | rc = iwl4965_hw_reg_send_txpower(priv); |
b481de9c ZY |
419 | if (rc) { |
420 | IWL_ERROR("Error setting Tx power (%d).\n", rc); | |
421 | return rc; | |
422 | } | |
423 | ||
424 | /* Add the broadcast address so we can send broadcast frames */ | |
4f40e4d9 | 425 | if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == |
b481de9c ZY |
426 | IWL_INVALID_STATION) { |
427 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); | |
428 | return -EIO; | |
429 | } | |
430 | ||
431 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
432 | * add the IWL_AP_ID to the station rate table */ | |
3109ece1 | 433 | if (iwl_is_associated(priv) && |
b481de9c | 434 | (priv->iw_mode == IEEE80211_IF_TYPE_STA)) { |
4f40e4d9 | 435 | if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1) |
b481de9c ZY |
436 | == IWL_INVALID_STATION) { |
437 | IWL_ERROR("Error adding AP address for transmit.\n"); | |
438 | return -EIO; | |
439 | } | |
440 | priv->assoc_station_added = 1; | |
6974e363 EG |
441 | if (priv->default_wep_key && |
442 | iwl_send_static_wepkey_cmd(priv, 0)) | |
443 | IWL_ERROR("Could not send WEP static key.\n"); | |
b481de9c ZY |
444 | } |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
5da4b55f MA |
449 | void iwl4965_update_chain_flags(struct iwl_priv *priv) |
450 | { | |
451 | ||
c7de35cd | 452 | iwl_set_rxon_chain(priv); |
5da4b55f MA |
453 | iwl4965_commit_rxon(priv); |
454 | } | |
455 | ||
c79dd5b5 | 456 | static int iwl4965_send_bt_config(struct iwl_priv *priv) |
b481de9c | 457 | { |
bb8c093b | 458 | struct iwl4965_bt_cmd bt_cmd = { |
b481de9c ZY |
459 | .flags = 3, |
460 | .lead_time = 0xAA, | |
461 | .max_kill = 1, | |
462 | .kill_ack_mask = 0, | |
463 | .kill_cts_mask = 0, | |
464 | }; | |
465 | ||
857485c0 | 466 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
bb8c093b | 467 | sizeof(struct iwl4965_bt_cmd), &bt_cmd); |
b481de9c ZY |
468 | } |
469 | ||
c79dd5b5 | 470 | static int iwl4965_send_scan_abort(struct iwl_priv *priv) |
b481de9c | 471 | { |
db11d634 TW |
472 | int ret = 0; |
473 | struct iwl_rx_packet *res; | |
857485c0 | 474 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
475 | .id = REPLY_SCAN_ABORT_CMD, |
476 | .meta.flags = CMD_WANT_SKB, | |
477 | }; | |
478 | ||
479 | /* If there isn't a scan actively going on in the hardware | |
480 | * then we are in between scan bands and not actually | |
481 | * actively scanning, so don't send the abort command */ | |
482 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
483 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
484 | return 0; | |
485 | } | |
486 | ||
db11d634 TW |
487 | ret = iwl_send_cmd_sync(priv, &cmd); |
488 | if (ret) { | |
b481de9c | 489 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); |
db11d634 | 490 | return ret; |
b481de9c ZY |
491 | } |
492 | ||
db11d634 | 493 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
494 | if (res->u.status != CAN_ABORT_STATUS) { |
495 | /* The scan abort will return 1 for success or | |
496 | * 2 for "failure". A failure condition can be | |
497 | * due to simply not being in an active scan which | |
498 | * can occur if we send the scan abort before we | |
499 | * the microcode has notified us that a scan is | |
500 | * completed. */ | |
501 | IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); | |
502 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
503 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
504 | } | |
505 | ||
506 | dev_kfree_skb_any(cmd.meta.u.skb); | |
507 | ||
db11d634 | 508 | return ret; |
b481de9c ZY |
509 | } |
510 | ||
b481de9c ZY |
511 | /* |
512 | * CARD_STATE_CMD | |
513 | * | |
9fbab516 | 514 | * Use: Sets the device's internal card state to enable, disable, or halt |
b481de9c ZY |
515 | * |
516 | * When in the 'enable' state the card operates as normal. | |
517 | * When in the 'disable' state, the card enters into a low power mode. | |
518 | * When in the 'halt' state, the card is shut down and must be fully | |
519 | * restarted to come back on. | |
520 | */ | |
c79dd5b5 | 521 | static int iwl4965_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) |
b481de9c | 522 | { |
857485c0 | 523 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
524 | .id = REPLY_CARD_STATE_CMD, |
525 | .len = sizeof(u32), | |
526 | .data = &flags, | |
527 | .meta.flags = meta_flag, | |
528 | }; | |
529 | ||
857485c0 | 530 | return iwl_send_cmd(priv, &cmd); |
b481de9c ZY |
531 | } |
532 | ||
fcab423d | 533 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
534 | { |
535 | struct list_head *element; | |
536 | ||
537 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
538 | priv->frames_count); | |
539 | ||
540 | while (!list_empty(&priv->free_frames)) { | |
541 | element = priv->free_frames.next; | |
542 | list_del(element); | |
fcab423d | 543 | kfree(list_entry(element, struct iwl_frame, list)); |
b481de9c ZY |
544 | priv->frames_count--; |
545 | } | |
546 | ||
547 | if (priv->frames_count) { | |
548 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
549 | priv->frames_count); | |
550 | priv->frames_count = 0; | |
551 | } | |
552 | } | |
553 | ||
fcab423d | 554 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
b481de9c | 555 | { |
fcab423d | 556 | struct iwl_frame *frame; |
b481de9c ZY |
557 | struct list_head *element; |
558 | if (list_empty(&priv->free_frames)) { | |
559 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
560 | if (!frame) { | |
561 | IWL_ERROR("Could not allocate frame!\n"); | |
562 | return NULL; | |
563 | } | |
564 | ||
565 | priv->frames_count++; | |
566 | return frame; | |
567 | } | |
568 | ||
569 | element = priv->free_frames.next; | |
570 | list_del(element); | |
fcab423d | 571 | return list_entry(element, struct iwl_frame, list); |
b481de9c ZY |
572 | } |
573 | ||
fcab423d | 574 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
b481de9c ZY |
575 | { |
576 | memset(frame, 0, sizeof(*frame)); | |
577 | list_add(&frame->list, &priv->free_frames); | |
578 | } | |
579 | ||
c79dd5b5 | 580 | unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv, |
b481de9c ZY |
581 | struct ieee80211_hdr *hdr, |
582 | const u8 *dest, int left) | |
583 | { | |
584 | ||
3109ece1 | 585 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
b481de9c ZY |
586 | ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) && |
587 | (priv->iw_mode != IEEE80211_IF_TYPE_AP))) | |
588 | return 0; | |
589 | ||
590 | if (priv->ibss_beacon->len > left) | |
591 | return 0; | |
592 | ||
593 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
594 | ||
595 | return priv->ibss_beacon->len; | |
596 | } | |
597 | ||
39e88504 | 598 | static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv) |
b481de9c | 599 | { |
39e88504 GC |
600 | int i; |
601 | int rate_mask; | |
602 | ||
603 | /* Set rate mask*/ | |
604 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
605 | rate_mask = priv->active_rate_basic & 0xF; | |
606 | else | |
607 | rate_mask = priv->active_rate_basic & 0xFF0; | |
b481de9c | 608 | |
39e88504 | 609 | /* Find lowest valid rate */ |
b481de9c | 610 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; |
1826dcc0 | 611 | i = iwl_rates[i].next_ieee) { |
b481de9c | 612 | if (rate_mask & (1 << i)) |
1826dcc0 | 613 | return iwl_rates[i].plcp; |
b481de9c ZY |
614 | } |
615 | ||
39e88504 GC |
616 | /* No valid rate was found. Assign the lowest one */ |
617 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
618 | return IWL_RATE_1M_PLCP; | |
619 | else | |
620 | return IWL_RATE_6M_PLCP; | |
b481de9c ZY |
621 | } |
622 | ||
c79dd5b5 | 623 | static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 624 | { |
fcab423d | 625 | struct iwl_frame *frame; |
b481de9c ZY |
626 | unsigned int frame_size; |
627 | int rc; | |
628 | u8 rate; | |
629 | ||
fcab423d | 630 | frame = iwl_get_free_frame(priv); |
b481de9c ZY |
631 | |
632 | if (!frame) { | |
633 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
634 | "command.\n"); | |
635 | return -ENOMEM; | |
636 | } | |
637 | ||
39e88504 | 638 | rate = iwl4965_rate_get_lowest_plcp(priv); |
b481de9c | 639 | |
bb8c093b | 640 | frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 641 | |
857485c0 | 642 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
643 | &frame->u.cmd[0]); |
644 | ||
fcab423d | 645 | iwl_free_frame(priv, frame); |
b481de9c ZY |
646 | |
647 | return rc; | |
648 | } | |
649 | ||
b481de9c ZY |
650 | /****************************************************************************** |
651 | * | |
652 | * Misc. internal state and helper functions | |
653 | * | |
654 | ******************************************************************************/ | |
b481de9c | 655 | |
b481de9c | 656 | /** |
bb8c093b | 657 | * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
658 | * |
659 | * return : set the bit for each supported rate insert in ie | |
660 | */ | |
bb8c093b | 661 | static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 662 | u16 basic_rate, int *left) |
b481de9c ZY |
663 | { |
664 | u16 ret_rates = 0, bit; | |
665 | int i; | |
c7c46676 TW |
666 | u8 *cnt = ie; |
667 | u8 *rates = ie + 1; | |
b481de9c ZY |
668 | |
669 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
670 | if (bit & supported_rate) { | |
671 | ret_rates |= bit; | |
1826dcc0 | 672 | rates[*cnt] = iwl_rates[i].ieee | |
c7c46676 TW |
673 | ((bit & basic_rate) ? 0x80 : 0x00); |
674 | (*cnt)++; | |
675 | (*left)--; | |
676 | if ((*left <= 0) || | |
677 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
678 | break; |
679 | } | |
680 | } | |
681 | ||
682 | return ret_rates; | |
683 | } | |
684 | ||
d1141dfb EG |
685 | #ifdef CONFIG_IWL4965_HT |
686 | static void iwl4965_ht_conf(struct iwl_priv *priv, | |
687 | struct ieee80211_bss_conf *bss_conf) | |
688 | { | |
689 | struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf; | |
690 | struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf; | |
691 | struct iwl_ht_info *iwl_conf = &priv->current_ht_config; | |
692 | ||
693 | IWL_DEBUG_MAC80211("enter: \n"); | |
694 | ||
695 | iwl_conf->is_ht = bss_conf->assoc_ht; | |
696 | ||
697 | if (!iwl_conf->is_ht) | |
698 | return; | |
699 | ||
700 | priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
701 | ||
702 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) | |
a9841013 | 703 | iwl_conf->sgf |= HT_SHORT_GI_20MHZ; |
d1141dfb | 704 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) |
a9841013 | 705 | iwl_conf->sgf |= HT_SHORT_GI_40MHZ; |
d1141dfb EG |
706 | |
707 | iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); | |
708 | iwl_conf->max_amsdu_size = | |
709 | !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); | |
710 | ||
711 | iwl_conf->supported_chan_width = | |
712 | !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH); | |
713 | iwl_conf->extension_chan_offset = | |
714 | ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET; | |
715 | /* If no above or below channel supplied disable FAT channel */ | |
716 | if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE && | |
717 | iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW) | |
718 | iwl_conf->supported_chan_width = 0; | |
719 | ||
720 | iwl_conf->tx_mimo_ps_mode = | |
721 | (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
722 | memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16); | |
723 | ||
724 | iwl_conf->control_channel = ht_bss_conf->primary_channel; | |
725 | iwl_conf->tx_chan_width = | |
726 | !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH); | |
727 | iwl_conf->ht_protection = | |
728 | ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION; | |
729 | iwl_conf->non_GF_STA_present = | |
730 | !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT); | |
731 | ||
732 | IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel); | |
733 | IWL_DEBUG_MAC80211("leave\n"); | |
734 | } | |
735 | ||
736 | static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, | |
737 | u8 *pos, int *left) | |
738 | { | |
739 | struct ieee80211_ht_cap *ht_cap; | |
740 | ||
741 | if (!sband || !sband->ht_info.ht_supported) | |
742 | return; | |
743 | ||
744 | if (*left < sizeof(struct ieee80211_ht_cap)) | |
745 | return; | |
746 | ||
747 | *pos++ = sizeof(struct ieee80211_ht_cap); | |
748 | ht_cap = (struct ieee80211_ht_cap *) pos; | |
749 | ||
750 | ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap); | |
751 | memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16); | |
752 | ht_cap->ampdu_params_info = | |
753 | (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) | | |
754 | ((sband->ht_info.ampdu_density << 2) & | |
755 | IEEE80211_HT_CAP_AMPDU_DENSITY); | |
756 | *left -= sizeof(struct ieee80211_ht_cap); | |
757 | } | |
758 | #else | |
759 | static inline void iwl4965_ht_conf(struct iwl_priv *priv, | |
760 | struct ieee80211_bss_conf *bss_conf) | |
761 | { | |
762 | } | |
763 | static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, | |
764 | u8 *pos, int *left) | |
765 | { | |
766 | } | |
767 | #endif | |
768 | ||
769 | ||
b481de9c | 770 | /** |
bb8c093b | 771 | * iwl4965_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 772 | */ |
c79dd5b5 | 773 | static u16 iwl4965_fill_probe_req(struct iwl_priv *priv, |
78330fdd TW |
774 | enum ieee80211_band band, |
775 | struct ieee80211_mgmt *frame, | |
776 | int left, int is_direct) | |
b481de9c ZY |
777 | { |
778 | int len = 0; | |
779 | u8 *pos = NULL; | |
bee488db | 780 | u16 active_rates, ret_rates, cck_rates, active_rate_basic; |
78330fdd | 781 | const struct ieee80211_supported_band *sband = |
d1141dfb | 782 | iwl_get_hw_mode(priv, band); |
b481de9c ZY |
783 | |
784 | /* Make sure there is enough space for the probe request, | |
785 | * two mandatory IEs and the data */ | |
786 | left -= 24; | |
787 | if (left < 0) | |
788 | return 0; | |
789 | len += 24; | |
790 | ||
791 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
57bd1bea | 792 | memcpy(frame->da, iwl_bcast_addr, ETH_ALEN); |
b481de9c | 793 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
57bd1bea | 794 | memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN); |
b481de9c ZY |
795 | frame->seq_ctrl = 0; |
796 | ||
797 | /* fill in our indirect SSID IE */ | |
798 | /* ...next IE... */ | |
799 | ||
800 | left -= 2; | |
801 | if (left < 0) | |
802 | return 0; | |
803 | len += 2; | |
804 | pos = &(frame->u.probe_req.variable[0]); | |
805 | *pos++ = WLAN_EID_SSID; | |
806 | *pos++ = 0; | |
807 | ||
808 | /* fill in our direct SSID IE... */ | |
809 | if (is_direct) { | |
810 | /* ...next IE... */ | |
811 | left -= 2 + priv->essid_len; | |
812 | if (left < 0) | |
813 | return 0; | |
814 | /* ... fill it in... */ | |
815 | *pos++ = WLAN_EID_SSID; | |
816 | *pos++ = priv->essid_len; | |
817 | memcpy(pos, priv->essid, priv->essid_len); | |
818 | pos += priv->essid_len; | |
819 | len += 2 + priv->essid_len; | |
820 | } | |
821 | ||
822 | /* fill in supported rate */ | |
823 | /* ...next IE... */ | |
824 | left -= 2; | |
825 | if (left < 0) | |
826 | return 0; | |
c7c46676 | 827 | |
b481de9c ZY |
828 | /* ... fill it in... */ |
829 | *pos++ = WLAN_EID_SUPP_RATES; | |
830 | *pos = 0; | |
c7c46676 | 831 | |
bee488db | 832 | /* exclude 60M rate */ |
833 | active_rates = priv->rates_mask; | |
834 | active_rates &= ~IWL_RATE_60M_MASK; | |
835 | ||
836 | active_rate_basic = active_rates & IWL_BASIC_RATES_MASK; | |
b481de9c | 837 | |
c7c46676 | 838 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 839 | ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates, |
bee488db | 840 | active_rate_basic, &left); |
c7c46676 TW |
841 | active_rates &= ~ret_rates; |
842 | ||
bb8c093b | 843 | ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates, |
bee488db | 844 | active_rate_basic, &left); |
c7c46676 TW |
845 | active_rates &= ~ret_rates; |
846 | ||
b481de9c ZY |
847 | len += 2 + *pos; |
848 | pos += (*pos) + 1; | |
c7c46676 | 849 | if (active_rates == 0) |
b481de9c ZY |
850 | goto fill_end; |
851 | ||
852 | /* fill in supported extended rate */ | |
853 | /* ...next IE... */ | |
854 | left -= 2; | |
855 | if (left < 0) | |
856 | return 0; | |
857 | /* ... fill it in... */ | |
858 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
859 | *pos = 0; | |
bb8c093b | 860 | iwl4965_supported_rate_to_ie(pos, active_rates, |
bee488db | 861 | active_rate_basic, &left); |
b481de9c ZY |
862 | if (*pos > 0) |
863 | len += 2 + *pos; | |
864 | ||
b481de9c | 865 | fill_end: |
d1141dfb EG |
866 | /* fill in HT IE */ |
867 | left -= 2; | |
868 | if (left < 0) | |
869 | return 0; | |
870 | ||
871 | *pos++ = WLAN_EID_HT_CAPABILITY; | |
872 | *pos = 0; | |
873 | ||
874 | iwl_ht_cap_to_ie(sband, pos, &left); | |
875 | ||
876 | if (*pos > 0) | |
877 | len += 2 + *pos; | |
b481de9c ZY |
878 | return (u16)len; |
879 | } | |
880 | ||
881 | /* | |
882 | * QoS support | |
883 | */ | |
c79dd5b5 | 884 | static int iwl4965_send_qos_params_command(struct iwl_priv *priv, |
bb8c093b | 885 | struct iwl4965_qosparam_cmd *qos) |
b481de9c ZY |
886 | { |
887 | ||
857485c0 | 888 | return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
bb8c093b | 889 | sizeof(struct iwl4965_qosparam_cmd), qos); |
b481de9c ZY |
890 | } |
891 | ||
c79dd5b5 | 892 | static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force) |
b481de9c ZY |
893 | { |
894 | unsigned long flags; | |
895 | ||
b481de9c ZY |
896 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
897 | return; | |
898 | ||
899 | if (!priv->qos_data.qos_enable) | |
900 | return; | |
901 | ||
902 | spin_lock_irqsave(&priv->lock, flags); | |
903 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
904 | ||
905 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
906 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
907 | priv->qos_data.def_qos_parm.qos_flags |= | |
908 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
b481de9c ZY |
909 | if (priv->qos_data.qos_active) |
910 | priv->qos_data.def_qos_parm.qos_flags |= | |
911 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
912 | ||
c8b0e6e1 | 913 | #ifdef CONFIG_IWL4965_HT |
fd105e79 | 914 | if (priv->current_ht_config.is_ht) |
f1f1f5c7 | 915 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
c8b0e6e1 | 916 | #endif /* CONFIG_IWL4965_HT */ |
f1f1f5c7 | 917 | |
b481de9c ZY |
918 | spin_unlock_irqrestore(&priv->lock, flags); |
919 | ||
3109ece1 | 920 | if (force || iwl_is_associated(priv)) { |
f1f1f5c7 TW |
921 | IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
922 | priv->qos_data.qos_active, | |
923 | priv->qos_data.def_qos_parm.qos_flags); | |
b481de9c | 924 | |
bb8c093b | 925 | iwl4965_send_qos_params_command(priv, |
b481de9c ZY |
926 | &(priv->qos_data.def_qos_parm)); |
927 | } | |
928 | } | |
929 | ||
c79dd5b5 | 930 | int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
931 | { |
932 | /* Filter incoming packets to determine if they are targeted toward | |
933 | * this network, discarding packets coming from ourselves */ | |
934 | switch (priv->iw_mode) { | |
935 | case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */ | |
936 | /* packets from our adapter are dropped (echo) */ | |
937 | if (!compare_ether_addr(header->addr2, priv->mac_addr)) | |
938 | return 0; | |
939 | /* {broad,multi}cast packets to our IBSS go through */ | |
940 | if (is_multicast_ether_addr(header->addr1)) | |
941 | return !compare_ether_addr(header->addr3, priv->bssid); | |
942 | /* packets to our adapter go through */ | |
943 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
944 | case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */ | |
945 | /* packets from our adapter are dropped (echo) */ | |
946 | if (!compare_ether_addr(header->addr3, priv->mac_addr)) | |
947 | return 0; | |
948 | /* {broad,multi}cast packets to our BSS go through */ | |
949 | if (is_multicast_ether_addr(header->addr1)) | |
950 | return !compare_ether_addr(header->addr2, priv->bssid); | |
951 | /* packets to our adapter go through */ | |
952 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
69dc5d9d TW |
953 | default: |
954 | break; | |
b481de9c ZY |
955 | } |
956 | ||
957 | return 1; | |
958 | } | |
959 | ||
960 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
961 | ||
bb8c093b | 962 | static const char *iwl4965_get_tx_fail_reason(u32 status) |
b481de9c ZY |
963 | { |
964 | switch (status & TX_STATUS_MSK) { | |
965 | case TX_STATUS_SUCCESS: | |
966 | return "SUCCESS"; | |
967 | TX_STATUS_ENTRY(SHORT_LIMIT); | |
968 | TX_STATUS_ENTRY(LONG_LIMIT); | |
969 | TX_STATUS_ENTRY(FIFO_UNDERRUN); | |
970 | TX_STATUS_ENTRY(MGMNT_ABORT); | |
971 | TX_STATUS_ENTRY(NEXT_FRAG); | |
972 | TX_STATUS_ENTRY(LIFE_EXPIRE); | |
973 | TX_STATUS_ENTRY(DEST_PS); | |
974 | TX_STATUS_ENTRY(ABORTED); | |
975 | TX_STATUS_ENTRY(BT_RETRY); | |
976 | TX_STATUS_ENTRY(STA_INVALID); | |
977 | TX_STATUS_ENTRY(FRAG_DROPPED); | |
978 | TX_STATUS_ENTRY(TID_DISABLE); | |
979 | TX_STATUS_ENTRY(FRAME_FLUSHED); | |
980 | TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); | |
981 | TX_STATUS_ENTRY(TX_LOCKED); | |
982 | TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); | |
983 | } | |
984 | ||
985 | return "UNKNOWN"; | |
986 | } | |
987 | ||
988 | /** | |
bb8c093b | 989 | * iwl4965_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
990 | * |
991 | * NOTE: priv->mutex is not required before calling this function | |
992 | */ | |
c79dd5b5 | 993 | static int iwl4965_scan_cancel(struct iwl_priv *priv) |
b481de9c ZY |
994 | { |
995 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
996 | clear_bit(STATUS_SCANNING, &priv->status); | |
997 | return 0; | |
998 | } | |
999 | ||
1000 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1001 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1002 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
1003 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1004 | queue_work(priv->workqueue, &priv->abort_scan); | |
1005 | ||
1006 | } else | |
1007 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
1008 | ||
1009 | return test_bit(STATUS_SCANNING, &priv->status); | |
1010 | } | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | /** | |
bb8c093b | 1016 | * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
1017 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
1018 | * | |
1019 | * NOTE: priv->mutex must be held before calling this function | |
1020 | */ | |
c79dd5b5 | 1021 | static int iwl4965_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms) |
b481de9c ZY |
1022 | { |
1023 | unsigned long now = jiffies; | |
1024 | int ret; | |
1025 | ||
bb8c093b | 1026 | ret = iwl4965_scan_cancel(priv); |
b481de9c ZY |
1027 | if (ret && ms) { |
1028 | mutex_unlock(&priv->mutex); | |
1029 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
1030 | test_bit(STATUS_SCANNING, &priv->status)) | |
1031 | msleep(1); | |
1032 | mutex_lock(&priv->mutex); | |
1033 | ||
1034 | return test_bit(STATUS_SCANNING, &priv->status); | |
1035 | } | |
1036 | ||
1037 | return ret; | |
1038 | } | |
1039 | ||
c79dd5b5 | 1040 | static void iwl4965_sequence_reset(struct iwl_priv *priv) |
b481de9c ZY |
1041 | { |
1042 | /* Reset ieee stats */ | |
1043 | ||
1044 | /* We don't reset the net_device_stats (ieee->stats) on | |
1045 | * re-association */ | |
1046 | ||
1047 | priv->last_seq_num = -1; | |
1048 | priv->last_frag_num = -1; | |
1049 | priv->last_packet_time = 0; | |
1050 | ||
bb8c093b | 1051 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
1052 | } |
1053 | ||
1054 | #define MAX_UCODE_BEACON_INTERVAL 4096 | |
1055 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
1056 | ||
bb8c093b | 1057 | static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
1058 | { |
1059 | u16 new_val = 0; | |
1060 | u16 beacon_factor = 0; | |
1061 | ||
1062 | beacon_factor = | |
1063 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
1064 | / MAX_UCODE_BEACON_INTERVAL; | |
1065 | new_val = beacon_val / beacon_factor; | |
1066 | ||
1067 | return cpu_to_le16(new_val); | |
1068 | } | |
1069 | ||
c79dd5b5 | 1070 | static void iwl4965_setup_rxon_timing(struct iwl_priv *priv) |
b481de9c ZY |
1071 | { |
1072 | u64 interval_tm_unit; | |
1073 | u64 tsf, result; | |
1074 | unsigned long flags; | |
1075 | struct ieee80211_conf *conf = NULL; | |
1076 | u16 beacon_int = 0; | |
1077 | ||
1078 | conf = ieee80211_get_hw_conf(priv->hw); | |
1079 | ||
1080 | spin_lock_irqsave(&priv->lock, flags); | |
3109ece1 TW |
1081 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32); |
1082 | priv->rxon_timing.timestamp.dw[0] = | |
1083 | cpu_to_le32(priv->timestamp & 0xFFFFFFFF); | |
b481de9c ZY |
1084 | |
1085 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
1086 | ||
3109ece1 | 1087 | tsf = priv->timestamp; |
b481de9c ZY |
1088 | |
1089 | beacon_int = priv->beacon_int; | |
1090 | spin_unlock_irqrestore(&priv->lock, flags); | |
1091 | ||
1092 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) { | |
1093 | if (beacon_int == 0) { | |
1094 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
1095 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
1096 | } else { | |
1097 | priv->rxon_timing.beacon_interval = | |
1098 | cpu_to_le16(beacon_int); | |
1099 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 1100 | iwl4965_adjust_beacon_interval( |
b481de9c ZY |
1101 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
1102 | } | |
1103 | ||
1104 | priv->rxon_timing.atim_window = 0; | |
1105 | } else { | |
1106 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 1107 | iwl4965_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
1108 | /* TODO: we need to get atim_window from upper stack |
1109 | * for now we set to 0 */ | |
1110 | priv->rxon_timing.atim_window = 0; | |
1111 | } | |
1112 | ||
1113 | interval_tm_unit = | |
1114 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
1115 | result = do_div(tsf, interval_tm_unit); | |
1116 | priv->rxon_timing.beacon_init_val = | |
1117 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
1118 | ||
1119 | IWL_DEBUG_ASSOC | |
1120 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
1121 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
1122 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
1123 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
1124 | } | |
1125 | ||
c79dd5b5 | 1126 | static int iwl4965_scan_initiate(struct iwl_priv *priv) |
b481de9c ZY |
1127 | { |
1128 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
1129 | IWL_ERROR("APs don't scan.\n"); | |
1130 | return 0; | |
1131 | } | |
1132 | ||
fee1247a | 1133 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
1134 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
1135 | return -EIO; | |
1136 | } | |
1137 | ||
1138 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1139 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
1140 | return -EAGAIN; | |
1141 | } | |
1142 | ||
1143 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1144 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
1145 | "Queuing.\n"); | |
1146 | return -EAGAIN; | |
1147 | } | |
1148 | ||
1149 | IWL_DEBUG_INFO("Starting scan...\n"); | |
1150 | priv->scan_bands = 2; | |
1151 | set_bit(STATUS_SCANNING, &priv->status); | |
1152 | priv->scan_start = jiffies; | |
1153 | priv->scan_pass_start = priv->scan_start; | |
1154 | ||
1155 | queue_work(priv->workqueue, &priv->request_scan); | |
1156 | ||
1157 | return 0; | |
1158 | } | |
1159 | ||
b481de9c | 1160 | |
c79dd5b5 | 1161 | static void iwl4965_set_flags_for_phymode(struct iwl_priv *priv, |
8318d78a | 1162 | enum ieee80211_band band) |
b481de9c | 1163 | { |
8318d78a | 1164 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
1165 | priv->staging_rxon.flags &= |
1166 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
1167 | | RXON_FLG_CCK_MSK); | |
1168 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1169 | } else { | |
508e32e1 | 1170 | /* Copied from iwl4965_post_associate() */ |
b481de9c ZY |
1171 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
1172 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1173 | else | |
1174 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1175 | ||
1176 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
1177 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1178 | ||
1179 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
1180 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
1181 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | /* | |
01ebd063 | 1186 | * initialize rxon structure with default values from eeprom |
b481de9c | 1187 | */ |
c79dd5b5 | 1188 | static void iwl4965_connection_init_rx_config(struct iwl_priv *priv) |
b481de9c | 1189 | { |
bf85ea4f | 1190 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
1191 | |
1192 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
1193 | ||
1194 | switch (priv->iw_mode) { | |
1195 | case IEEE80211_IF_TYPE_AP: | |
1196 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; | |
1197 | break; | |
1198 | ||
1199 | case IEEE80211_IF_TYPE_STA: | |
1200 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; | |
1201 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
1202 | break; | |
1203 | ||
1204 | case IEEE80211_IF_TYPE_IBSS: | |
1205 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; | |
1206 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
1207 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
1208 | RXON_FILTER_ACCEPT_GRP_MSK; | |
1209 | break; | |
1210 | ||
1211 | case IEEE80211_IF_TYPE_MNTR: | |
1212 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; | |
1213 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
1214 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
1215 | break; | |
69dc5d9d TW |
1216 | default: |
1217 | IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode); | |
1218 | break; | |
b481de9c ZY |
1219 | } |
1220 | ||
1221 | #if 0 | |
1222 | /* TODO: Figure out when short_preamble would be set and cache from | |
1223 | * that */ | |
1224 | if (!hw_to_local(priv->hw)->short_preamble) | |
1225 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
1226 | else | |
1227 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
1228 | #endif | |
1229 | ||
8622e705 | 1230 | ch_info = iwl_get_channel_info(priv, priv->band, |
b481de9c ZY |
1231 | le16_to_cpu(priv->staging_rxon.channel)); |
1232 | ||
1233 | if (!ch_info) | |
1234 | ch_info = &priv->channel_info[0]; | |
1235 | ||
1236 | /* | |
1237 | * in some case A channels are all non IBSS | |
1238 | * in this case force B/G channel | |
1239 | */ | |
1240 | if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && | |
1241 | !(is_channel_ibss(ch_info))) | |
1242 | ch_info = &priv->channel_info[0]; | |
1243 | ||
1244 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
8318d78a | 1245 | priv->band = ch_info->band; |
b481de9c | 1246 | |
8318d78a | 1247 | iwl4965_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
1248 | |
1249 | priv->staging_rxon.ofdm_basic_rates = | |
1250 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1251 | priv->staging_rxon.cck_basic_rates = | |
1252 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1253 | ||
1254 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
1255 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
1256 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
1257 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); | |
1258 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; | |
1259 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; | |
c7de35cd | 1260 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
1261 | } |
1262 | ||
c79dd5b5 | 1263 | static int iwl4965_set_mode(struct iwl_priv *priv, int mode) |
b481de9c | 1264 | { |
b481de9c | 1265 | if (mode == IEEE80211_IF_TYPE_IBSS) { |
bf85ea4f | 1266 | const struct iwl_channel_info *ch_info; |
b481de9c | 1267 | |
8622e705 | 1268 | ch_info = iwl_get_channel_info(priv, |
8318d78a | 1269 | priv->band, |
b481de9c ZY |
1270 | le16_to_cpu(priv->staging_rxon.channel)); |
1271 | ||
1272 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
1273 | IWL_ERROR("channel %d not IBSS channel\n", | |
1274 | le16_to_cpu(priv->staging_rxon.channel)); | |
1275 | return -EINVAL; | |
1276 | } | |
1277 | } | |
1278 | ||
b481de9c ZY |
1279 | priv->iw_mode = mode; |
1280 | ||
bb8c093b | 1281 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
1282 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
1283 | ||
bf85ea4f | 1284 | iwlcore_clear_stations_table(priv); |
b481de9c | 1285 | |
fde3571f | 1286 | /* dont commit rxon if rf-kill is on*/ |
fee1247a | 1287 | if (!iwl_is_ready_rf(priv)) |
fde3571f MA |
1288 | return -EAGAIN; |
1289 | ||
1290 | cancel_delayed_work(&priv->scan_check); | |
1291 | if (iwl4965_scan_cancel_timeout(priv, 100)) { | |
1292 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
1293 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
1294 | return -EAGAIN; | |
1295 | } | |
1296 | ||
bb8c093b | 1297 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
1298 | |
1299 | return 0; | |
1300 | } | |
1301 | ||
c79dd5b5 | 1302 | static void iwl4965_set_rate(struct iwl_priv *priv) |
b481de9c | 1303 | { |
8318d78a | 1304 | const struct ieee80211_supported_band *hw = NULL; |
b481de9c ZY |
1305 | struct ieee80211_rate *rate; |
1306 | int i; | |
1307 | ||
d1141dfb | 1308 | hw = iwl_get_hw_mode(priv, priv->band); |
c4ba9621 SA |
1309 | if (!hw) { |
1310 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); | |
1311 | return; | |
1312 | } | |
b481de9c ZY |
1313 | |
1314 | priv->active_rate = 0; | |
1315 | priv->active_rate_basic = 0; | |
1316 | ||
8318d78a JB |
1317 | for (i = 0; i < hw->n_bitrates; i++) { |
1318 | rate = &(hw->bitrates[i]); | |
1319 | if (rate->hw_value < IWL_RATE_COUNT) | |
1320 | priv->active_rate |= (1 << rate->hw_value); | |
b481de9c ZY |
1321 | } |
1322 | ||
1323 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
1324 | priv->active_rate, priv->active_rate_basic); | |
1325 | ||
1326 | /* | |
1327 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
1328 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
1329 | * OFDM | |
1330 | */ | |
1331 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
1332 | priv->staging_rxon.cck_basic_rates = | |
1333 | ((priv->active_rate_basic & | |
1334 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
1335 | else | |
1336 | priv->staging_rxon.cck_basic_rates = | |
1337 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1338 | ||
1339 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
1340 | priv->staging_rxon.ofdm_basic_rates = | |
1341 | ((priv->active_rate_basic & | |
1342 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
1343 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
1344 | else | |
1345 | priv->staging_rxon.ofdm_basic_rates = | |
1346 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1347 | } | |
1348 | ||
ad97edd2 | 1349 | void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio) |
b481de9c ZY |
1350 | { |
1351 | unsigned long flags; | |
1352 | ||
1353 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1354 | return; | |
1355 | ||
1356 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
1357 | disable_radio ? "OFF" : "ON"); | |
1358 | ||
1359 | if (disable_radio) { | |
bb8c093b | 1360 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
1361 | /* FIXME: This is a workaround for AP */ |
1362 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
1363 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 1364 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1365 | CSR_UCODE_SW_BIT_RFKILL); |
1366 | spin_unlock_irqrestore(&priv->lock, flags); | |
ad97edd2 | 1367 | /* call the host command only if no hw rf-kill set */ |
59003835 MA |
1368 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && |
1369 | iwl_is_ready(priv)) | |
ad97edd2 MA |
1370 | iwl4965_send_card_state(priv, |
1371 | CARD_STATE_CMD_DISABLE, | |
1372 | 0); | |
b481de9c | 1373 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
ad97edd2 MA |
1374 | |
1375 | /* make sure mac80211 stop sending Tx frame */ | |
1376 | if (priv->mac80211_registered) | |
1377 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
1378 | } |
1379 | return; | |
1380 | } | |
1381 | ||
1382 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 1383 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
1384 | |
1385 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1386 | spin_unlock_irqrestore(&priv->lock, flags); | |
1387 | ||
1388 | /* wake up ucode */ | |
1389 | msleep(10); | |
1390 | ||
1391 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
1392 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1393 | if (!iwl_grab_nic_access(priv)) | |
1394 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1395 | spin_unlock_irqrestore(&priv->lock, flags); |
1396 | ||
1397 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
1398 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
1399 | "disabled by HW switch\n"); | |
1400 | return; | |
1401 | } | |
1402 | ||
1403 | queue_work(priv->workqueue, &priv->restart); | |
1404 | return; | |
1405 | } | |
1406 | ||
b481de9c ZY |
1407 | #define IWL_PACKET_RETRY_TIME HZ |
1408 | ||
c79dd5b5 | 1409 | int iwl4965_is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
1410 | { |
1411 | u16 sc = le16_to_cpu(header->seq_ctrl); | |
1412 | u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4; | |
1413 | u16 frag = sc & IEEE80211_SCTL_FRAG; | |
1414 | u16 *last_seq, *last_frag; | |
1415 | unsigned long *last_time; | |
1416 | ||
1417 | switch (priv->iw_mode) { | |
1418 | case IEEE80211_IF_TYPE_IBSS:{ | |
1419 | struct list_head *p; | |
bb8c093b | 1420 | struct iwl4965_ibss_seq *entry = NULL; |
b481de9c ZY |
1421 | u8 *mac = header->addr2; |
1422 | int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1); | |
1423 | ||
1424 | __list_for_each(p, &priv->ibss_mac_hash[index]) { | |
bb8c093b | 1425 | entry = list_entry(p, struct iwl4965_ibss_seq, list); |
b481de9c ZY |
1426 | if (!compare_ether_addr(entry->mac, mac)) |
1427 | break; | |
1428 | } | |
1429 | if (p == &priv->ibss_mac_hash[index]) { | |
1430 | entry = kzalloc(sizeof(*entry), GFP_ATOMIC); | |
1431 | if (!entry) { | |
bc434dd2 | 1432 | IWL_ERROR("Cannot malloc new mac entry\n"); |
b481de9c ZY |
1433 | return 0; |
1434 | } | |
1435 | memcpy(entry->mac, mac, ETH_ALEN); | |
1436 | entry->seq_num = seq; | |
1437 | entry->frag_num = frag; | |
1438 | entry->packet_time = jiffies; | |
bc434dd2 | 1439 | list_add(&entry->list, &priv->ibss_mac_hash[index]); |
b481de9c ZY |
1440 | return 0; |
1441 | } | |
1442 | last_seq = &entry->seq_num; | |
1443 | last_frag = &entry->frag_num; | |
1444 | last_time = &entry->packet_time; | |
1445 | break; | |
1446 | } | |
1447 | case IEEE80211_IF_TYPE_STA: | |
1448 | last_seq = &priv->last_seq_num; | |
1449 | last_frag = &priv->last_frag_num; | |
1450 | last_time = &priv->last_packet_time; | |
1451 | break; | |
1452 | default: | |
1453 | return 0; | |
1454 | } | |
1455 | if ((*last_seq == seq) && | |
1456 | time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) { | |
1457 | if (*last_frag == frag) | |
1458 | goto drop; | |
1459 | if (*last_frag + 1 != frag) | |
1460 | /* out-of-order fragment */ | |
1461 | goto drop; | |
1462 | } else | |
1463 | *last_seq = seq; | |
1464 | ||
1465 | *last_frag = frag; | |
1466 | *last_time = jiffies; | |
1467 | return 0; | |
1468 | ||
1469 | drop: | |
1470 | return 1; | |
1471 | } | |
1472 | ||
c8b0e6e1 | 1473 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
1474 | |
1475 | #include "iwl-spectrum.h" | |
1476 | ||
1477 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
1478 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
1479 | #define TIME_UNIT 1024 | |
1480 | ||
1481 | /* | |
1482 | * extended beacon time format | |
1483 | * time in usec will be changed into a 32-bit value in 8:24 format | |
1484 | * the high 1 byte is the beacon counts | |
1485 | * the lower 3 bytes is the time in usec within one beacon interval | |
1486 | */ | |
1487 | ||
bb8c093b | 1488 | static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
1489 | { |
1490 | u32 quot; | |
1491 | u32 rem; | |
1492 | u32 interval = beacon_interval * 1024; | |
1493 | ||
1494 | if (!interval || !usec) | |
1495 | return 0; | |
1496 | ||
1497 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
1498 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
1499 | ||
1500 | return (quot << 24) + rem; | |
1501 | } | |
1502 | ||
1503 | /* base is usually what we get from ucode with each received frame, | |
1504 | * the same as HW timer counter counting down | |
1505 | */ | |
1506 | ||
bb8c093b | 1507 | static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
1508 | { |
1509 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
1510 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
1511 | u32 interval = beacon_interval * TIME_UNIT; | |
1512 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
1513 | (addon & BEACON_TIME_MASK_HIGH); | |
1514 | ||
1515 | if (base_low > addon_low) | |
1516 | res += base_low - addon_low; | |
1517 | else if (base_low < addon_low) { | |
1518 | res += interval + base_low - addon_low; | |
1519 | res += (1 << 24); | |
1520 | } else | |
1521 | res += (1 << 24); | |
1522 | ||
1523 | return cpu_to_le32(res); | |
1524 | } | |
1525 | ||
c79dd5b5 | 1526 | static int iwl4965_get_measurement(struct iwl_priv *priv, |
b481de9c ZY |
1527 | struct ieee80211_measurement_params *params, |
1528 | u8 type) | |
1529 | { | |
bb8c093b | 1530 | struct iwl4965_spectrum_cmd spectrum; |
db11d634 | 1531 | struct iwl_rx_packet *res; |
857485c0 | 1532 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
1533 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
1534 | .data = (void *)&spectrum, | |
1535 | .meta.flags = CMD_WANT_SKB, | |
1536 | }; | |
1537 | u32 add_time = le64_to_cpu(params->start_time); | |
1538 | int rc; | |
1539 | int spectrum_resp_status; | |
1540 | int duration = le16_to_cpu(params->duration); | |
1541 | ||
3109ece1 | 1542 | if (iwl_is_associated(priv)) |
b481de9c | 1543 | add_time = |
bb8c093b | 1544 | iwl4965_usecs_to_beacons( |
b481de9c ZY |
1545 | le64_to_cpu(params->start_time) - priv->last_tsf, |
1546 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1547 | ||
1548 | memset(&spectrum, 0, sizeof(spectrum)); | |
1549 | ||
1550 | spectrum.channel_count = cpu_to_le16(1); | |
1551 | spectrum.flags = | |
1552 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
1553 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
1554 | cmd.len = sizeof(spectrum); | |
1555 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
1556 | ||
3109ece1 | 1557 | if (iwl_is_associated(priv)) |
b481de9c | 1558 | spectrum.start_time = |
bb8c093b | 1559 | iwl4965_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
1560 | add_time, |
1561 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1562 | else | |
1563 | spectrum.start_time = 0; | |
1564 | ||
1565 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
1566 | spectrum.channels[0].channel = params->channel; | |
1567 | spectrum.channels[0].type = type; | |
1568 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
1569 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
1570 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
1571 | ||
857485c0 | 1572 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1573 | if (rc) |
1574 | return rc; | |
1575 | ||
db11d634 | 1576 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1577 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1578 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
1579 | rc = -EIO; | |
1580 | } | |
1581 | ||
1582 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
1583 | switch (spectrum_resp_status) { | |
1584 | case 0: /* Command will be handled */ | |
1585 | if (res->u.spectrum.id != 0xff) { | |
1586 | IWL_DEBUG_INFO | |
1587 | ("Replaced existing measurement: %d\n", | |
1588 | res->u.spectrum.id); | |
1589 | priv->measurement_status &= ~MEASUREMENT_READY; | |
1590 | } | |
1591 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
1592 | rc = 0; | |
1593 | break; | |
1594 | ||
1595 | case 1: /* Command will not be handled */ | |
1596 | rc = -EAGAIN; | |
1597 | break; | |
1598 | } | |
1599 | ||
1600 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1601 | ||
1602 | return rc; | |
1603 | } | |
1604 | #endif | |
1605 | ||
c79dd5b5 | 1606 | static void iwl4965_txstatus_to_ieee(struct iwl_priv *priv, |
8567c63e | 1607 | struct iwl_tx_info *tx_sta) |
b481de9c | 1608 | { |
e039fa4a | 1609 | ieee80211_tx_status_irqsafe(priv->hw, tx_sta->skb[0]); |
b481de9c ZY |
1610 | tx_sta->skb[0] = NULL; |
1611 | } | |
1612 | ||
1613 | /** | |
6440adb5 | 1614 | * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd |
b481de9c | 1615 | * |
6440adb5 CB |
1616 | * When FW advances 'R' index, all entries between old and new 'R' index |
1617 | * need to be reclaimed. As result, some free space forms. If there is | |
1618 | * enough free space (> low mark), wake the stack that feeds us. | |
b481de9c | 1619 | */ |
c79dd5b5 | 1620 | int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) |
b481de9c | 1621 | { |
16466903 | 1622 | struct iwl_tx_queue *txq = &priv->txq[txq_id]; |
443cfd45 | 1623 | struct iwl_queue *q = &txq->q; |
b481de9c ZY |
1624 | int nfreed = 0; |
1625 | ||
443cfd45 | 1626 | if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { |
b481de9c ZY |
1627 | IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " |
1628 | "is out of range [0-%d] %d %d.\n", txq_id, | |
fc4b6853 | 1629 | index, q->n_bd, q->write_ptr, q->read_ptr); |
b481de9c ZY |
1630 | return 0; |
1631 | } | |
1632 | ||
c54b679d | 1633 | for (index = iwl_queue_inc_wrap(index, q->n_bd); |
fc4b6853 | 1634 | q->read_ptr != index; |
c54b679d | 1635 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { |
b481de9c | 1636 | if (txq_id != IWL_CMD_QUEUE_NUM) { |
bb8c093b | 1637 | iwl4965_txstatus_to_ieee(priv, |
fc4b6853 | 1638 | &(txq->txb[txq->q.read_ptr])); |
1053d35f | 1639 | iwl_hw_txq_free_tfd(priv, txq); |
b481de9c ZY |
1640 | } else if (nfreed > 1) { |
1641 | IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, | |
fc4b6853 | 1642 | q->write_ptr, q->read_ptr); |
b481de9c ZY |
1643 | queue_work(priv->workqueue, &priv->restart); |
1644 | } | |
1645 | nfreed++; | |
1646 | } | |
1647 | ||
b481de9c ZY |
1648 | return nfreed; |
1649 | } | |
1650 | ||
bb8c093b | 1651 | static int iwl4965_is_tx_success(u32 status) |
b481de9c ZY |
1652 | { |
1653 | status &= TX_STATUS_MSK; | |
1654 | return (status == TX_STATUS_SUCCESS) | |
1655 | || (status == TX_STATUS_DIRECT_DONE); | |
1656 | } | |
1657 | ||
1658 | /****************************************************************************** | |
1659 | * | |
1660 | * Generic RX handler implementations | |
1661 | * | |
1662 | ******************************************************************************/ | |
c8b0e6e1 | 1663 | #ifdef CONFIG_IWL4965_HT |
b481de9c | 1664 | |
c79dd5b5 | 1665 | static inline int iwl4965_get_ra_sta_id(struct iwl_priv *priv, |
b481de9c ZY |
1666 | struct ieee80211_hdr *hdr) |
1667 | { | |
1668 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) | |
1669 | return IWL_AP_ID; | |
1670 | else { | |
1671 | u8 *da = ieee80211_get_DA(hdr); | |
947b13a7 | 1672 | return iwl_find_station(priv, da); |
b481de9c ZY |
1673 | } |
1674 | } | |
1675 | ||
bb8c093b | 1676 | static struct ieee80211_hdr *iwl4965_tx_queue_get_hdr( |
c79dd5b5 | 1677 | struct iwl_priv *priv, int txq_id, int idx) |
b481de9c ZY |
1678 | { |
1679 | if (priv->txq[txq_id].txb[idx].skb[0]) | |
1680 | return (struct ieee80211_hdr *)priv->txq[txq_id]. | |
1681 | txb[idx].skb[0]->data; | |
1682 | return NULL; | |
1683 | } | |
1684 | ||
bb8c093b | 1685 | static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp) |
b481de9c ZY |
1686 | { |
1687 | __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status + | |
1688 | tx_resp->frame_count); | |
1689 | return le32_to_cpu(*scd_ssn) & MAX_SN; | |
1690 | ||
1691 | } | |
6440adb5 CB |
1692 | |
1693 | /** | |
1694 | * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue | |
1695 | */ | |
c79dd5b5 | 1696 | static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, |
6def9761 | 1697 | struct iwl_ht_agg *agg, |
fe01b477 | 1698 | struct iwl4965_tx_resp_agg *tx_resp, |
b481de9c ZY |
1699 | u16 start_idx) |
1700 | { | |
fe01b477 RR |
1701 | u16 status; |
1702 | struct agg_tx_status *frame_status = &tx_resp->status; | |
e039fa4a | 1703 | struct ieee80211_tx_info *info = NULL; |
b481de9c ZY |
1704 | struct ieee80211_hdr *hdr = NULL; |
1705 | int i, sh; | |
1706 | int txq_id, idx; | |
1707 | u16 seq; | |
1708 | ||
1709 | if (agg->wait_for_ba) | |
6440adb5 | 1710 | IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n"); |
b481de9c ZY |
1711 | |
1712 | agg->frame_count = tx_resp->frame_count; | |
1713 | agg->start_idx = start_idx; | |
1714 | agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); | |
fe01b477 | 1715 | agg->bitmap = 0; |
b481de9c | 1716 | |
6440adb5 | 1717 | /* # frames attempted by Tx command */ |
b481de9c | 1718 | if (agg->frame_count == 1) { |
6440adb5 | 1719 | /* Only one frame was attempted; no block-ack will arrive */ |
fe01b477 RR |
1720 | status = le16_to_cpu(frame_status[0].status); |
1721 | seq = le16_to_cpu(frame_status[0].sequence); | |
1722 | idx = SEQ_TO_INDEX(seq); | |
1723 | txq_id = SEQ_TO_QUEUE(seq); | |
b481de9c | 1724 | |
b481de9c | 1725 | /* FIXME: code repetition */ |
fe01b477 RR |
1726 | IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n", |
1727 | agg->frame_count, agg->start_idx, idx); | |
b481de9c | 1728 | |
e039fa4a JB |
1729 | info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); |
1730 | info->status.retry_count = tx_resp->failure_frame; | |
1731 | info->flags &= ~IEEE80211_TX_CTL_AMPDU; | |
1732 | info->flags |= iwl4965_is_tx_success(status)? | |
1733 | IEEE80211_TX_STAT_ACK : 0; | |
4c424e4c RR |
1734 | iwl4965_hwrate_to_tx_control(priv, |
1735 | le32_to_cpu(tx_resp->rate_n_flags), | |
e039fa4a | 1736 | info); |
b481de9c ZY |
1737 | /* FIXME: code repetition end */ |
1738 | ||
1739 | IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n", | |
1740 | status & 0xff, tx_resp->failure_frame); | |
1741 | IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n", | |
bb8c093b | 1742 | iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags)); |
b481de9c ZY |
1743 | |
1744 | agg->wait_for_ba = 0; | |
1745 | } else { | |
6440adb5 | 1746 | /* Two or more frames were attempted; expect block-ack */ |
b481de9c ZY |
1747 | u64 bitmap = 0; |
1748 | int start = agg->start_idx; | |
1749 | ||
6440adb5 | 1750 | /* Construct bit-map of pending frames within Tx window */ |
b481de9c ZY |
1751 | for (i = 0; i < agg->frame_count; i++) { |
1752 | u16 sc; | |
fe01b477 RR |
1753 | status = le16_to_cpu(frame_status[i].status); |
1754 | seq = le16_to_cpu(frame_status[i].sequence); | |
b481de9c ZY |
1755 | idx = SEQ_TO_INDEX(seq); |
1756 | txq_id = SEQ_TO_QUEUE(seq); | |
1757 | ||
1758 | if (status & (AGG_TX_STATE_FEW_BYTES_MSK | | |
1759 | AGG_TX_STATE_ABORT_MSK)) | |
1760 | continue; | |
1761 | ||
1762 | IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n", | |
1763 | agg->frame_count, txq_id, idx); | |
1764 | ||
bb8c093b | 1765 | hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, idx); |
b481de9c ZY |
1766 | |
1767 | sc = le16_to_cpu(hdr->seq_ctrl); | |
1768 | if (idx != (SEQ_TO_SN(sc) & 0xff)) { | |
1769 | IWL_ERROR("BUG_ON idx doesn't match seq control" | |
1770 | " idx=%d, seq_idx=%d, seq=%d\n", | |
1771 | idx, SEQ_TO_SN(sc), | |
1772 | hdr->seq_ctrl); | |
1773 | return -1; | |
1774 | } | |
1775 | ||
1776 | IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n", | |
1777 | i, idx, SEQ_TO_SN(sc)); | |
1778 | ||
1779 | sh = idx - start; | |
1780 | if (sh > 64) { | |
1781 | sh = (start - idx) + 0xff; | |
1782 | bitmap = bitmap << sh; | |
1783 | sh = 0; | |
1784 | start = idx; | |
1785 | } else if (sh < -64) | |
1786 | sh = 0xff - (start - idx); | |
1787 | else if (sh < 0) { | |
1788 | sh = start - idx; | |
1789 | start = idx; | |
1790 | bitmap = bitmap << sh; | |
1791 | sh = 0; | |
1792 | } | |
1793 | bitmap |= (1 << sh); | |
1794 | IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n", | |
1795 | start, (u32)(bitmap & 0xFFFFFFFF)); | |
1796 | } | |
1797 | ||
fe01b477 | 1798 | agg->bitmap = bitmap; |
b481de9c ZY |
1799 | agg->start_idx = start; |
1800 | agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); | |
fe01b477 | 1801 | IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n", |
b481de9c | 1802 | agg->frame_count, agg->start_idx, |
06501d29 | 1803 | (unsigned long long)agg->bitmap); |
b481de9c ZY |
1804 | |
1805 | if (bitmap) | |
1806 | agg->wait_for_ba = 1; | |
1807 | } | |
1808 | return 0; | |
1809 | } | |
1810 | #endif | |
b481de9c | 1811 | |
6440adb5 CB |
1812 | /** |
1813 | * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response | |
1814 | */ | |
c79dd5b5 | 1815 | static void iwl4965_rx_reply_tx(struct iwl_priv *priv, |
a55360e4 | 1816 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1817 | { |
db11d634 | 1818 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1819 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
1820 | int txq_id = SEQ_TO_QUEUE(sequence); | |
1821 | int index = SEQ_TO_INDEX(sequence); | |
16466903 | 1822 | struct iwl_tx_queue *txq = &priv->txq[txq_id]; |
e039fa4a | 1823 | struct ieee80211_tx_info *info; |
bb8c093b | 1824 | struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; |
b481de9c | 1825 | u32 status = le32_to_cpu(tx_resp->status); |
c8b0e6e1 | 1826 | #ifdef CONFIG_IWL4965_HT |
fe01b477 | 1827 | int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION; |
54dbb525 | 1828 | u16 fc; |
fe01b477 | 1829 | struct ieee80211_hdr *hdr; |
54dbb525 | 1830 | u8 *qc = NULL; |
b481de9c ZY |
1831 | #endif |
1832 | ||
443cfd45 | 1833 | if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) { |
b481de9c ZY |
1834 | IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " |
1835 | "is out of range [0-%d] %d %d\n", txq_id, | |
fc4b6853 TW |
1836 | index, txq->q.n_bd, txq->q.write_ptr, |
1837 | txq->q.read_ptr); | |
b481de9c ZY |
1838 | return; |
1839 | } | |
1840 | ||
e039fa4a JB |
1841 | info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); |
1842 | memset(&info->status, 0, sizeof(info->status)); | |
1843 | ||
c8b0e6e1 | 1844 | #ifdef CONFIG_IWL4965_HT |
fe01b477 | 1845 | hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, index); |
54dbb525 TW |
1846 | fc = le16_to_cpu(hdr->frame_control); |
1847 | if (ieee80211_is_qos_data(fc)) { | |
1848 | qc = ieee80211_get_qos_ctrl(hdr, ieee80211_get_hdrlen(fc)); | |
1849 | tid = qc[0] & 0xf; | |
1850 | } | |
fe01b477 RR |
1851 | |
1852 | sta_id = iwl4965_get_ra_sta_id(priv, hdr); | |
1853 | if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) { | |
1854 | IWL_ERROR("Station not known\n"); | |
1855 | return; | |
1856 | } | |
1857 | ||
b481de9c | 1858 | if (txq->sched_retry) { |
bb8c093b | 1859 | const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp); |
6def9761 | 1860 | struct iwl_ht_agg *agg = NULL; |
b481de9c | 1861 | |
fe01b477 | 1862 | if (!qc) |
b481de9c | 1863 | return; |
b481de9c ZY |
1864 | |
1865 | agg = &priv->stations[sta_id].tid[tid].agg; | |
1866 | ||
fe01b477 RR |
1867 | iwl4965_tx_status_reply_tx(priv, agg, |
1868 | (struct iwl4965_tx_resp_agg *)tx_resp, index); | |
b481de9c ZY |
1869 | |
1870 | if ((tx_resp->frame_count == 1) && | |
bb8c093b | 1871 | !iwl4965_is_tx_success(status)) { |
b481de9c ZY |
1872 | /* TODO: send BAR */ |
1873 | } | |
1874 | ||
fe01b477 | 1875 | if (txq->q.read_ptr != (scd_ssn & 0xff)) { |
0d0b2c1c | 1876 | int freed, ampdu_q; |
c54b679d | 1877 | index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); |
b481de9c ZY |
1878 | IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn " |
1879 | "%d index %d\n", scd_ssn , index); | |
fe01b477 RR |
1880 | freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); |
1881 | priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; | |
1882 | ||
443cfd45 | 1883 | if (iwl_queue_space(&txq->q) > txq->q.low_mark && |
fe01b477 | 1884 | txq_id >= 0 && priv->mac80211_registered && |
0d0b2c1c RR |
1885 | agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) { |
1886 | /* calculate mac80211 ampdu sw queue to wake */ | |
1887 | ampdu_q = txq_id - IWL_BACK_QUEUE_FIRST_ID + | |
1888 | priv->hw->queues; | |
1889 | if (agg->state == IWL_AGG_OFF) | |
1890 | ieee80211_wake_queue(priv->hw, txq_id); | |
1891 | else | |
1892 | ieee80211_wake_queue(priv->hw, ampdu_q); | |
1893 | } | |
fe01b477 | 1894 | iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id); |
b481de9c ZY |
1895 | } |
1896 | } else { | |
c8b0e6e1 | 1897 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 1898 | |
e039fa4a JB |
1899 | info->status.retry_count = tx_resp->failure_frame; |
1900 | info->flags |= | |
1901 | iwl4965_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; | |
4c424e4c | 1902 | iwl4965_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags), |
e039fa4a | 1903 | info); |
b481de9c | 1904 | |
b481de9c | 1905 | IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x " |
bb8c093b | 1906 | "retries %d\n", txq_id, iwl4965_get_tx_fail_reason(status), |
b481de9c ZY |
1907 | status, le32_to_cpu(tx_resp->rate_n_flags), |
1908 | tx_resp->failure_frame); | |
1909 | ||
1910 | IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); | |
47c5196e | 1911 | #ifdef CONFIG_IWL4965_HT |
fe01b477 RR |
1912 | if (index != -1) { |
1913 | int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); | |
fe01b477 RR |
1914 | if (tid != MAX_TID_COUNT) |
1915 | priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; | |
443cfd45 | 1916 | if (iwl_queue_space(&txq->q) > txq->q.low_mark && |
0d0b2c1c | 1917 | (txq_id >= 0) && priv->mac80211_registered) |
fe01b477 RR |
1918 | ieee80211_wake_queue(priv->hw, txq_id); |
1919 | if (tid != MAX_TID_COUNT) | |
1920 | iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id); | |
fe01b477 | 1921 | } |
b481de9c | 1922 | } |
c8b0e6e1 | 1923 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c ZY |
1924 | |
1925 | if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) | |
1926 | IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n"); | |
1927 | } | |
1928 | ||
1929 | ||
c79dd5b5 | 1930 | static void iwl4965_rx_reply_alive(struct iwl_priv *priv, |
a55360e4 | 1931 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1932 | { |
db11d634 | 1933 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1934 | struct iwl4965_alive_resp *palive; |
b481de9c ZY |
1935 | struct delayed_work *pwork; |
1936 | ||
1937 | palive = &pkt->u.alive_frame; | |
1938 | ||
1939 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
1940 | "0x%01X 0x%01X\n", | |
1941 | palive->is_valid, palive->ver_type, | |
1942 | palive->ver_subtype); | |
1943 | ||
1944 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
1945 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
1946 | memcpy(&priv->card_alive_init, | |
1947 | &pkt->u.alive_frame, | |
bb8c093b | 1948 | sizeof(struct iwl4965_init_alive_resp)); |
b481de9c ZY |
1949 | pwork = &priv->init_alive_start; |
1950 | } else { | |
1951 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
1952 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
bb8c093b | 1953 | sizeof(struct iwl4965_alive_resp)); |
b481de9c ZY |
1954 | pwork = &priv->alive_start; |
1955 | } | |
1956 | ||
1957 | /* We delay the ALIVE response by 5ms to | |
1958 | * give the HW RF Kill time to activate... */ | |
1959 | if (palive->is_valid == UCODE_VALID_OK) | |
1960 | queue_delayed_work(priv->workqueue, pwork, | |
1961 | msecs_to_jiffies(5)); | |
1962 | else | |
1963 | IWL_WARNING("uCode did not respond OK.\n"); | |
1964 | } | |
1965 | ||
c79dd5b5 | 1966 | static void iwl4965_rx_reply_add_sta(struct iwl_priv *priv, |
a55360e4 | 1967 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1968 | { |
db11d634 | 1969 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1970 | |
1971 | IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); | |
1972 | return; | |
1973 | } | |
1974 | ||
c79dd5b5 | 1975 | static void iwl4965_rx_reply_error(struct iwl_priv *priv, |
a55360e4 | 1976 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1977 | { |
db11d634 | 1978 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1979 | |
1980 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
1981 | "seq 0x%04X ser 0x%08X\n", | |
1982 | le32_to_cpu(pkt->u.err_resp.error_type), | |
1983 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
1984 | pkt->u.err_resp.cmd_id, | |
1985 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
1986 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
1987 | } | |
1988 | ||
1989 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
1990 | ||
a55360e4 | 1991 | static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1992 | { |
db11d634 | 1993 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
c1adf9fb | 1994 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
bb8c093b | 1995 | struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif); |
b481de9c ZY |
1996 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
1997 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
1998 | rxon->channel = csa->channel; | |
1999 | priv->staging_rxon.channel = csa->channel; | |
2000 | } | |
2001 | ||
c79dd5b5 | 2002 | static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv, |
a55360e4 | 2003 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2004 | { |
c8b0e6e1 | 2005 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
db11d634 | 2006 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 2007 | struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif); |
b481de9c ZY |
2008 | |
2009 | if (!report->state) { | |
f3d67999 EK |
2010 | IWL_DEBUG(IWL_DL_11H, |
2011 | "Spectrum Measure Notification: Start\n"); | |
b481de9c ZY |
2012 | return; |
2013 | } | |
2014 | ||
2015 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
2016 | priv->measurement_status |= MEASUREMENT_READY; | |
2017 | #endif | |
2018 | } | |
2019 | ||
c79dd5b5 | 2020 | static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv, |
a55360e4 | 2021 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2022 | { |
0a6857e7 | 2023 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 2024 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 2025 | struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif); |
b481de9c ZY |
2026 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
2027 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
2028 | #endif | |
2029 | } | |
2030 | ||
c79dd5b5 | 2031 | static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
a55360e4 | 2032 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2033 | { |
db11d634 | 2034 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2035 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
2036 | "notification for %s:\n", | |
2037 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bf403db8 | 2038 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
2039 | } |
2040 | ||
bb8c093b | 2041 | static void iwl4965_bg_beacon_update(struct work_struct *work) |
b481de9c | 2042 | { |
c79dd5b5 TW |
2043 | struct iwl_priv *priv = |
2044 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
2045 | struct sk_buff *beacon; |
2046 | ||
2047 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 2048 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
2049 | |
2050 | if (!beacon) { | |
2051 | IWL_ERROR("update beacon failed\n"); | |
2052 | return; | |
2053 | } | |
2054 | ||
2055 | mutex_lock(&priv->mutex); | |
2056 | /* new beacon skb is allocated every time; dispose previous.*/ | |
2057 | if (priv->ibss_beacon) | |
2058 | dev_kfree_skb(priv->ibss_beacon); | |
2059 | ||
2060 | priv->ibss_beacon = beacon; | |
2061 | mutex_unlock(&priv->mutex); | |
2062 | ||
bb8c093b | 2063 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
2064 | } |
2065 | ||
c79dd5b5 | 2066 | static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 2067 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2068 | { |
0a6857e7 | 2069 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 2070 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
2071 | struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status); |
2072 | u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); | |
b481de9c ZY |
2073 | |
2074 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
2075 | "tsf %d %d rate %d\n", | |
2076 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
2077 | beacon->beacon_notify_hdr.failure_frame, | |
2078 | le32_to_cpu(beacon->ibss_mgr_status), | |
2079 | le32_to_cpu(beacon->high_tsf), | |
2080 | le32_to_cpu(beacon->low_tsf), rate); | |
2081 | #endif | |
2082 | ||
2083 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && | |
2084 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) | |
2085 | queue_work(priv->workqueue, &priv->beacon_update); | |
2086 | } | |
2087 | ||
2088 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
c79dd5b5 | 2089 | static void iwl4965_rx_reply_scan(struct iwl_priv *priv, |
a55360e4 | 2090 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2091 | { |
0a6857e7 | 2092 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 2093 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
2094 | struct iwl4965_scanreq_notification *notif = |
2095 | (struct iwl4965_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
2096 | |
2097 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
2098 | #endif | |
2099 | } | |
2100 | ||
2101 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
c79dd5b5 | 2102 | static void iwl4965_rx_scan_start_notif(struct iwl_priv *priv, |
a55360e4 | 2103 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2104 | { |
db11d634 | 2105 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
2106 | struct iwl4965_scanstart_notification *notif = |
2107 | (struct iwl4965_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
2108 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
2109 | IWL_DEBUG_SCAN("Scan start: " | |
2110 | "%d [802.11%s] " | |
2111 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
2112 | notif->channel, | |
2113 | notif->band ? "bg" : "a", | |
2114 | notif->tsf_high, | |
2115 | notif->tsf_low, notif->status, notif->beacon_timer); | |
2116 | } | |
2117 | ||
2118 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
c79dd5b5 | 2119 | static void iwl4965_rx_scan_results_notif(struct iwl_priv *priv, |
a55360e4 | 2120 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2121 | { |
db11d634 | 2122 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
2123 | struct iwl4965_scanresults_notification *notif = |
2124 | (struct iwl4965_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
2125 | |
2126 | IWL_DEBUG_SCAN("Scan ch.res: " | |
2127 | "%d [802.11%s] " | |
2128 | "(TSF: 0x%08X:%08X) - %d " | |
2129 | "elapsed=%lu usec (%dms since last)\n", | |
2130 | notif->channel, | |
2131 | notif->band ? "bg" : "a", | |
2132 | le32_to_cpu(notif->tsf_high), | |
2133 | le32_to_cpu(notif->tsf_low), | |
2134 | le32_to_cpu(notif->statistics[0]), | |
2135 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
2136 | jiffies_to_msecs(elapsed_jiffies | |
2137 | (priv->last_scan_jiffies, jiffies))); | |
2138 | ||
2139 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 2140 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
2141 | } |
2142 | ||
2143 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
c79dd5b5 | 2144 | static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv, |
a55360e4 | 2145 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2146 | { |
db11d634 | 2147 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 2148 | struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw; |
b481de9c ZY |
2149 | |
2150 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
2151 | scan_notif->scanned_channels, | |
2152 | scan_notif->tsf_low, | |
2153 | scan_notif->tsf_high, scan_notif->status); | |
2154 | ||
2155 | /* The HW is no longer scanning */ | |
2156 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
2157 | ||
2158 | /* The scan completion notification came in, so kill that timer... */ | |
2159 | cancel_delayed_work(&priv->scan_check); | |
2160 | ||
2161 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
2162 | (priv->scan_bands == 2) ? "2.4" : "5.2", | |
2163 | jiffies_to_msecs(elapsed_jiffies | |
2164 | (priv->scan_pass_start, jiffies))); | |
2165 | ||
2166 | /* Remove this scanned band from the list | |
2167 | * of pending bands to scan */ | |
2168 | priv->scan_bands--; | |
2169 | ||
2170 | /* If a request to abort was given, or the scan did not succeed | |
2171 | * then we reset the scan state machine and terminate, | |
2172 | * re-queuing another scan if one has been requested */ | |
2173 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
2174 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
2175 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
2176 | } else { | |
2177 | /* If there are more bands on this scan pass reschedule */ | |
2178 | if (priv->scan_bands > 0) | |
2179 | goto reschedule; | |
2180 | } | |
2181 | ||
2182 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 2183 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
2184 | IWL_DEBUG_INFO("Setting scan to off\n"); |
2185 | ||
2186 | clear_bit(STATUS_SCANNING, &priv->status); | |
2187 | ||
2188 | IWL_DEBUG_INFO("Scan took %dms\n", | |
2189 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
2190 | ||
2191 | queue_work(priv->workqueue, &priv->scan_completed); | |
2192 | ||
2193 | return; | |
2194 | ||
2195 | reschedule: | |
2196 | priv->scan_pass_start = jiffies; | |
2197 | queue_work(priv->workqueue, &priv->request_scan); | |
2198 | } | |
2199 | ||
2200 | /* Handle notification from uCode that card's power state is changing | |
2201 | * due to software, hardware, or critical temperature RFKILL */ | |
c79dd5b5 | 2202 | static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, |
a55360e4 | 2203 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2204 | { |
db11d634 | 2205 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2206 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
2207 | unsigned long status = priv->status; | |
2208 | ||
2209 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
2210 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
2211 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
2212 | ||
2213 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | | |
2214 | RF_CARD_DISABLED)) { | |
2215 | ||
3395f6e9 | 2216 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
2217 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
2218 | ||
3395f6e9 TW |
2219 | if (!iwl_grab_nic_access(priv)) { |
2220 | iwl_write_direct32( | |
b481de9c ZY |
2221 | priv, HBUS_TARG_MBX_C, |
2222 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
2223 | ||
3395f6e9 | 2224 | iwl_release_nic_access(priv); |
b481de9c ZY |
2225 | } |
2226 | ||
2227 | if (!(flags & RXON_CARD_DISABLED)) { | |
3395f6e9 | 2228 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c | 2229 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3395f6e9 TW |
2230 | if (!iwl_grab_nic_access(priv)) { |
2231 | iwl_write_direct32( | |
b481de9c ZY |
2232 | priv, HBUS_TARG_MBX_C, |
2233 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
2234 | ||
3395f6e9 | 2235 | iwl_release_nic_access(priv); |
b481de9c ZY |
2236 | } |
2237 | } | |
2238 | ||
2239 | if (flags & RF_CARD_DISABLED) { | |
3395f6e9 | 2240 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c | 2241 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
3395f6e9 TW |
2242 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
2243 | if (!iwl_grab_nic_access(priv)) | |
2244 | iwl_release_nic_access(priv); | |
b481de9c ZY |
2245 | } |
2246 | } | |
2247 | ||
2248 | if (flags & HW_CARD_DISABLED) | |
2249 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
2250 | else | |
2251 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
2252 | ||
2253 | ||
2254 | if (flags & SW_CARD_DISABLED) | |
2255 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
2256 | else | |
2257 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
2258 | ||
2259 | if (!(flags & RXON_CARD_DISABLED)) | |
bb8c093b | 2260 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
2261 | |
2262 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
2263 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
2264 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
2265 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
2266 | queue_work(priv->workqueue, &priv->rf_kill); | |
2267 | else | |
2268 | wake_up_interruptible(&priv->wait_command_queue); | |
2269 | } | |
2270 | ||
2271 | /** | |
bb8c093b | 2272 | * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
2273 | * |
2274 | * Setup the RX handlers for each of the reply types sent from the uCode | |
2275 | * to the host. | |
2276 | * | |
2277 | * This function chains into the hardware specific files for them to setup | |
2278 | * any hardware specific handlers as well. | |
2279 | */ | |
c79dd5b5 | 2280 | static void iwl4965_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 2281 | { |
bb8c093b CH |
2282 | priv->rx_handlers[REPLY_ALIVE] = iwl4965_rx_reply_alive; |
2283 | priv->rx_handlers[REPLY_ADD_STA] = iwl4965_rx_reply_add_sta; | |
2284 | priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error; | |
2285 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa; | |
b481de9c | 2286 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
2287 | iwl4965_rx_spectrum_measure_notif; |
2288 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif; | |
b481de9c | 2289 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
2290 | iwl4965_rx_pm_debug_statistics_notif; |
2291 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif; | |
b481de9c | 2292 | |
9fbab516 BC |
2293 | /* |
2294 | * The same handler is used for both the REPLY to a discrete | |
2295 | * statistics request from the host as well as for the periodic | |
2296 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 2297 | */ |
bb8c093b CH |
2298 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics; |
2299 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics; | |
b481de9c | 2300 | |
bb8c093b CH |
2301 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan; |
2302 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif; | |
b481de9c | 2303 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 2304 | iwl4965_rx_scan_results_notif; |
b481de9c | 2305 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b CH |
2306 | iwl4965_rx_scan_complete_notif; |
2307 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif; | |
2308 | priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx; | |
b481de9c | 2309 | |
9fbab516 | 2310 | /* Set up hardware specific Rx handlers */ |
d4789efe | 2311 | priv->cfg->ops->lib->rx_handler_setup(priv); |
b481de9c ZY |
2312 | } |
2313 | ||
2314 | /** | |
bb8c093b | 2315 | * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
2316 | * @rxb: Rx buffer to reclaim |
2317 | * | |
2318 | * If an Rx buffer has an async callback associated with it the callback | |
2319 | * will be executed. The attached skb (if present) will only be freed | |
2320 | * if the callback returns 1 | |
2321 | */ | |
c79dd5b5 | 2322 | static void iwl4965_tx_cmd_complete(struct iwl_priv *priv, |
a55360e4 | 2323 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2324 | { |
db11d634 | 2325 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2326 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
2327 | int txq_id = SEQ_TO_QUEUE(sequence); | |
2328 | int index = SEQ_TO_INDEX(sequence); | |
2329 | int huge = sequence & SEQ_HUGE_FRAME; | |
2330 | int cmd_index; | |
857485c0 | 2331 | struct iwl_cmd *cmd; |
b481de9c ZY |
2332 | |
2333 | /* If a Tx command is being handled and it isn't in the actual | |
2334 | * command queue then there a command routing bug has been introduced | |
2335 | * in the queue management code. */ | |
2336 | if (txq_id != IWL_CMD_QUEUE_NUM) | |
2337 | IWL_ERROR("Error wrong command queue %d command id 0x%X\n", | |
2338 | txq_id, pkt->hdr.cmd); | |
2339 | BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); | |
2340 | ||
2341 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); | |
2342 | cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
2343 | ||
2344 | /* Input error checking is done when commands are added to queue. */ | |
2345 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
2346 | cmd->meta.source->u.skb = rxb->skb; | |
2347 | rxb->skb = NULL; | |
2348 | } else if (cmd->meta.u.callback && | |
2349 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
2350 | rxb->skb = NULL; | |
2351 | ||
bb8c093b | 2352 | iwl4965_tx_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
2353 | |
2354 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
2355 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
2356 | wake_up_interruptible(&priv->wait_command_queue); | |
2357 | } | |
2358 | } | |
2359 | ||
5c0eef96 MA |
2360 | /* |
2361 | * this should be called while priv->lock is locked | |
2362 | */ | |
a55360e4 | 2363 | static void __iwl_rx_replenish(struct iwl_priv *priv) |
b481de9c | 2364 | { |
a55360e4 TW |
2365 | iwl_rx_allocate(priv); |
2366 | iwl_rx_queue_restock(priv); | |
b481de9c ZY |
2367 | } |
2368 | ||
b481de9c ZY |
2369 | |
2370 | /** | |
a55360e4 | 2371 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
2372 | * |
2373 | * Uses the priv->rx_handlers callback function array to invoke | |
2374 | * the appropriate handlers, including command responses, | |
2375 | * frame-received notifications, and other notifications. | |
2376 | */ | |
a55360e4 | 2377 | void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 2378 | { |
a55360e4 | 2379 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 2380 | struct iwl_rx_packet *pkt; |
a55360e4 | 2381 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
2382 | u32 r, i; |
2383 | int reclaim; | |
2384 | unsigned long flags; | |
5c0eef96 | 2385 | u8 fill_rx = 0; |
d68ab680 | 2386 | u32 count = 8; |
b481de9c | 2387 | |
6440adb5 CB |
2388 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
2389 | * buffer that the driver may process (last buffer filled by ucode). */ | |
d67f5489 | 2390 | r = priv->cfg->ops->lib->shared_mem_rx_idx(priv); |
b481de9c ZY |
2391 | i = rxq->read; |
2392 | ||
2393 | /* Rx interrupt, but nothing sent from uCode */ | |
2394 | if (i == r) | |
f3d67999 | 2395 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i); |
b481de9c | 2396 | |
a55360e4 | 2397 | if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
5c0eef96 MA |
2398 | fill_rx = 1; |
2399 | ||
b481de9c ZY |
2400 | while (i != r) { |
2401 | rxb = rxq->queue[i]; | |
2402 | ||
9fbab516 | 2403 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
2404 | * then a bug has been introduced in the queue refilling |
2405 | * routines -- catch it here */ | |
2406 | BUG_ON(rxb == NULL); | |
2407 | ||
2408 | rxq->queue[i] = NULL; | |
2409 | ||
2410 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 2411 | priv->hw_params.rx_buf_size, |
b481de9c | 2412 | PCI_DMA_FROMDEVICE); |
db11d634 | 2413 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2414 | |
2415 | /* Reclaim a command buffer only if this packet is a response | |
2416 | * to a (driver-originated) command. | |
2417 | * If the packet (e.g. Rx frame) originated from uCode, | |
2418 | * there is no command buffer to reclaim. | |
2419 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
2420 | * but apparently a few don't get set; catch them here. */ | |
2421 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
2422 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 2423 | (pkt->hdr.cmd != REPLY_RX) && |
cfe01709 | 2424 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
2425 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
2426 | (pkt->hdr.cmd != REPLY_TX); | |
2427 | ||
2428 | /* Based on type of command response or notification, | |
2429 | * handle those that need handling via function in | |
bb8c093b | 2430 | * rx_handlers table. See iwl4965_setup_rx_handlers() */ |
b481de9c | 2431 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
f3d67999 EK |
2432 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r, |
2433 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
b481de9c ZY |
2434 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
2435 | } else { | |
2436 | /* No handling needed */ | |
f3d67999 | 2437 | IWL_DEBUG(IWL_DL_RX, |
b481de9c ZY |
2438 | "r %d i %d No handler needed for %s, 0x%02x\n", |
2439 | r, i, get_cmd_string(pkt->hdr.cmd), | |
2440 | pkt->hdr.cmd); | |
2441 | } | |
2442 | ||
2443 | if (reclaim) { | |
9fbab516 | 2444 | /* Invoke any callbacks, transfer the skb to caller, and |
857485c0 | 2445 | * fire off the (possibly) blocking iwl_send_cmd() |
b481de9c ZY |
2446 | * as we reclaim the driver command queue */ |
2447 | if (rxb && rxb->skb) | |
bb8c093b | 2448 | iwl4965_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
2449 | else |
2450 | IWL_WARNING("Claim null rxb?\n"); | |
2451 | } | |
2452 | ||
2453 | /* For now we just don't re-use anything. We can tweak this | |
2454 | * later to try and re-use notification packets and SKBs that | |
2455 | * fail to Rx correctly */ | |
2456 | if (rxb->skb != NULL) { | |
2457 | priv->alloc_rxb_skb--; | |
2458 | dev_kfree_skb_any(rxb->skb); | |
2459 | rxb->skb = NULL; | |
2460 | } | |
2461 | ||
2462 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 2463 | priv->hw_params.rx_buf_size, |
9ee1ba47 | 2464 | PCI_DMA_FROMDEVICE); |
b481de9c ZY |
2465 | spin_lock_irqsave(&rxq->lock, flags); |
2466 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
2467 | spin_unlock_irqrestore(&rxq->lock, flags); | |
2468 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
2469 | /* If there are a lot of unused frames, |
2470 | * restock the Rx queue so ucode wont assert. */ | |
2471 | if (fill_rx) { | |
2472 | count++; | |
2473 | if (count >= 8) { | |
2474 | priv->rxq.read = i; | |
a55360e4 | 2475 | __iwl_rx_replenish(priv); |
5c0eef96 MA |
2476 | count = 0; |
2477 | } | |
2478 | } | |
b481de9c ZY |
2479 | } |
2480 | ||
2481 | /* Backtrack one entry */ | |
2482 | priv->rxq.read = i; | |
a55360e4 TW |
2483 | iwl_rx_queue_restock(priv); |
2484 | } | |
2485 | /* Convert linear signal-to-noise ratio into dB */ | |
2486 | static u8 ratio2dB[100] = { | |
2487 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
2488 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
2489 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
2490 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
2491 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
2492 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
2493 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
2494 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
2495 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
2496 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
2497 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
2498 | }; | |
2499 | ||
2500 | /* Calculates a relative dB value from a ratio of linear | |
2501 | * (i.e. not dB) signal levels. | |
2502 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
2503 | int iwl4965_calc_db_from_ratio(int sig_ratio) | |
2504 | { | |
2505 | /* 1000:1 or higher just report as 60 dB */ | |
2506 | if (sig_ratio >= 1000) | |
2507 | return 60; | |
2508 | ||
2509 | /* 100:1 or higher, divide by 10 and use table, | |
2510 | * add 20 dB to make up for divide by 10 */ | |
2511 | if (sig_ratio >= 100) | |
2512 | return (20 + (int)ratio2dB[sig_ratio/10]); | |
2513 | ||
2514 | /* We shouldn't see this */ | |
2515 | if (sig_ratio < 1) | |
2516 | return 0; | |
2517 | ||
2518 | /* Use table for ratios 1:1 - 99:1 */ | |
2519 | return (int)ratio2dB[sig_ratio]; | |
2520 | } | |
2521 | ||
2522 | #define PERFECT_RSSI (-20) /* dBm */ | |
2523 | #define WORST_RSSI (-95) /* dBm */ | |
2524 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
2525 | ||
2526 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
2527 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
2528 | * about formulas used below. */ | |
2529 | int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm) | |
2530 | { | |
2531 | int sig_qual; | |
2532 | int degradation = PERFECT_RSSI - rssi_dbm; | |
2533 | ||
2534 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
2535 | * as indicator; formula is (signal dbm - noise dbm). | |
2536 | * SNR at or above 40 is a great signal (100%). | |
2537 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
2538 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
2539 | if (noise_dbm) { | |
2540 | if (rssi_dbm - noise_dbm >= 40) | |
2541 | return 100; | |
2542 | else if (rssi_dbm < noise_dbm) | |
2543 | return 0; | |
2544 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
2545 | ||
2546 | /* Else use just the signal level. | |
2547 | * This formula is a least squares fit of data points collected and | |
2548 | * compared with a reference system that had a percentage (%) display | |
2549 | * for signal quality. */ | |
2550 | } else | |
2551 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
2552 | (15 * RSSI_RANGE + 62 * degradation)) / | |
2553 | (RSSI_RANGE * RSSI_RANGE); | |
2554 | ||
2555 | if (sig_qual > 100) | |
2556 | sig_qual = 100; | |
2557 | else if (sig_qual < 1) | |
2558 | sig_qual = 0; | |
2559 | ||
2560 | return sig_qual; | |
b481de9c ZY |
2561 | } |
2562 | ||
0a6857e7 | 2563 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2564 | static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv) |
b481de9c | 2565 | { |
c1adf9fb | 2566 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
0795af57 JP |
2567 | DECLARE_MAC_BUF(mac); |
2568 | ||
b481de9c | 2569 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bf403db8 | 2570 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
2571 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
2572 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
2573 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
2574 | le32_to_cpu(rxon->filter_flags)); | |
2575 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
2576 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
2577 | rxon->ofdm_basic_rates); | |
2578 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
0795af57 JP |
2579 | IWL_DEBUG_RADIO("u8[6] node_addr: %s\n", |
2580 | print_mac(mac, rxon->node_addr)); | |
2581 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n", | |
2582 | print_mac(mac, rxon->bssid_addr)); | |
b481de9c ZY |
2583 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
2584 | } | |
2585 | #endif | |
2586 | ||
c79dd5b5 | 2587 | static void iwl4965_enable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
2588 | { |
2589 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
2590 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
3395f6e9 | 2591 | iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
2592 | } |
2593 | ||
0359facc MA |
2594 | /* call this function to flush any scheduled tasklet */ |
2595 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) | |
2596 | { | |
2597 | /* wait to make sure we flush pedding tasklet*/ | |
2598 | synchronize_irq(priv->pci_dev->irq); | |
2599 | tasklet_kill(&priv->irq_tasklet); | |
2600 | } | |
2601 | ||
c79dd5b5 | 2602 | static inline void iwl4965_disable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
2603 | { |
2604 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
2605 | ||
2606 | /* disable interrupts from uCode/NIC to host */ | |
3395f6e9 | 2607 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
2608 | |
2609 | /* acknowledge/clear/reset any interrupts still pending | |
2610 | * from uCode or flow handler (Rx/Tx DMA) */ | |
3395f6e9 TW |
2611 | iwl_write32(priv, CSR_INT, 0xffffffff); |
2612 | iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
2613 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
2614 | } | |
2615 | ||
2616 | static const char *desc_lookup(int i) | |
2617 | { | |
2618 | switch (i) { | |
2619 | case 1: | |
2620 | return "FAIL"; | |
2621 | case 2: | |
2622 | return "BAD_PARAM"; | |
2623 | case 3: | |
2624 | return "BAD_CHECKSUM"; | |
2625 | case 4: | |
2626 | return "NMI_INTERRUPT"; | |
2627 | case 5: | |
2628 | return "SYSASSERT"; | |
2629 | case 6: | |
2630 | return "FATAL_ERROR"; | |
2631 | } | |
2632 | ||
2633 | return "UNKNOWN"; | |
2634 | } | |
2635 | ||
2636 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
2637 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
2638 | ||
c79dd5b5 | 2639 | static void iwl4965_dump_nic_error_log(struct iwl_priv *priv) |
b481de9c ZY |
2640 | { |
2641 | u32 data2, line; | |
2642 | u32 desc, time, count, base, data1; | |
2643 | u32 blink1, blink2, ilink1, ilink2; | |
2644 | int rc; | |
2645 | ||
2646 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
2647 | ||
57aab75a | 2648 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
b481de9c ZY |
2649 | IWL_ERROR("Not valid error log pointer 0x%08X\n", base); |
2650 | return; | |
2651 | } | |
2652 | ||
3395f6e9 | 2653 | rc = iwl_grab_nic_access(priv); |
b481de9c ZY |
2654 | if (rc) { |
2655 | IWL_WARNING("Can not read from adapter at this time.\n"); | |
2656 | return; | |
2657 | } | |
2658 | ||
3395f6e9 | 2659 | count = iwl_read_targ_mem(priv, base); |
b481de9c ZY |
2660 | |
2661 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
2662 | IWL_ERROR("Start IWL Error Log Dump:\n"); | |
2acae16e | 2663 | IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); |
b481de9c ZY |
2664 | } |
2665 | ||
3395f6e9 TW |
2666 | desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); |
2667 | blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); | |
2668 | blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); | |
2669 | ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); | |
2670 | ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); | |
2671 | data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); | |
2672 | data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); | |
2673 | line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); | |
2674 | time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); | |
b481de9c ZY |
2675 | |
2676 | IWL_ERROR("Desc Time " | |
2677 | "data1 data2 line\n"); | |
2678 | IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n", | |
2679 | desc_lookup(desc), desc, time, data1, data2, line); | |
2680 | IWL_ERROR("blink1 blink2 ilink1 ilink2\n"); | |
2681 | IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, | |
2682 | ilink1, ilink2); | |
2683 | ||
3395f6e9 | 2684 | iwl_release_nic_access(priv); |
b481de9c ZY |
2685 | } |
2686 | ||
b481de9c | 2687 | /** |
bb8c093b | 2688 | * iwl4965_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 2689 | */ |
c79dd5b5 | 2690 | static void iwl4965_irq_handle_error(struct iwl_priv *priv) |
b481de9c | 2691 | { |
bb8c093b | 2692 | /* Set the FW error flag -- cleared on iwl4965_down */ |
b481de9c ZY |
2693 | set_bit(STATUS_FW_ERROR, &priv->status); |
2694 | ||
2695 | /* Cancel currently queued command. */ | |
2696 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
2697 | ||
0a6857e7 | 2698 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2699 | if (priv->debug_level & IWL_DL_FW_ERRORS) { |
bb8c093b | 2700 | iwl4965_dump_nic_error_log(priv); |
189a2b59 | 2701 | iwl_dump_nic_event_log(priv); |
bf403db8 | 2702 | iwl4965_print_rx_config_cmd(priv); |
b481de9c ZY |
2703 | } |
2704 | #endif | |
2705 | ||
2706 | wake_up_interruptible(&priv->wait_command_queue); | |
2707 | ||
2708 | /* Keep the restart process from trying to send host | |
2709 | * commands by clearing the INIT status bit */ | |
2710 | clear_bit(STATUS_READY, &priv->status); | |
2711 | ||
2712 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
f3d67999 | 2713 | IWL_DEBUG(IWL_DL_FW_ERRORS, |
b481de9c ZY |
2714 | "Restarting adapter due to uCode error.\n"); |
2715 | ||
3109ece1 | 2716 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
2717 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
2718 | sizeof(priv->recovery_rxon)); | |
2719 | priv->error_recovering = 1; | |
2720 | } | |
3a1081e8 EK |
2721 | if (priv->cfg->mod_params->restart_fw) |
2722 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
2723 | } |
2724 | } | |
2725 | ||
c79dd5b5 | 2726 | static void iwl4965_error_recovery(struct iwl_priv *priv) |
b481de9c ZY |
2727 | { |
2728 | unsigned long flags; | |
2729 | ||
2730 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
2731 | sizeof(priv->staging_rxon)); | |
2732 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 2733 | iwl4965_commit_rxon(priv); |
b481de9c | 2734 | |
4f40e4d9 | 2735 | iwl_rxon_add_station(priv, priv->bssid, 1); |
b481de9c ZY |
2736 | |
2737 | spin_lock_irqsave(&priv->lock, flags); | |
2738 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
2739 | priv->error_recovering = 0; | |
2740 | spin_unlock_irqrestore(&priv->lock, flags); | |
2741 | } | |
2742 | ||
c79dd5b5 | 2743 | static void iwl4965_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
2744 | { |
2745 | u32 inta, handled = 0; | |
2746 | u32 inta_fh; | |
2747 | unsigned long flags; | |
0a6857e7 | 2748 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
2749 | u32 inta_mask; |
2750 | #endif | |
2751 | ||
2752 | spin_lock_irqsave(&priv->lock, flags); | |
2753 | ||
2754 | /* Ack/clear/reset pending uCode interrupts. | |
2755 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
2756 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
3395f6e9 TW |
2757 | inta = iwl_read32(priv, CSR_INT); |
2758 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
2759 | |
2760 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
2761 | * Any new interrupts that happen after this, either while we're | |
2762 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
3395f6e9 TW |
2763 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
2764 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 2765 | |
0a6857e7 | 2766 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2767 | if (priv->debug_level & IWL_DL_ISR) { |
9fbab516 | 2768 | /* just for debug */ |
3395f6e9 | 2769 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
b481de9c ZY |
2770 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
2771 | inta, inta_mask, inta_fh); | |
2772 | } | |
2773 | #endif | |
2774 | ||
2775 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
2776 | * atomic, make sure that inta covers all the interrupts that | |
2777 | * we've discovered, even if FH interrupt came in just after | |
2778 | * reading CSR_INT. */ | |
6f83eaa1 | 2779 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
b481de9c | 2780 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 2781 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
b481de9c ZY |
2782 | inta |= CSR_INT_BIT_FH_TX; |
2783 | ||
2784 | /* Now service all interrupt bits discovered above. */ | |
2785 | if (inta & CSR_INT_BIT_HW_ERR) { | |
2786 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
2787 | ||
2788 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 2789 | iwl4965_disable_interrupts(priv); |
b481de9c | 2790 | |
bb8c093b | 2791 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
2792 | |
2793 | handled |= CSR_INT_BIT_HW_ERR; | |
2794 | ||
2795 | spin_unlock_irqrestore(&priv->lock, flags); | |
2796 | ||
2797 | return; | |
2798 | } | |
2799 | ||
0a6857e7 | 2800 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2801 | if (priv->debug_level & (IWL_DL_ISR)) { |
b481de9c | 2802 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
2803 | if (inta & CSR_INT_BIT_SCD) |
2804 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
2805 | "the frame/frames.\n"); | |
b481de9c ZY |
2806 | |
2807 | /* Alive notification via Rx interrupt will do the real work */ | |
2808 | if (inta & CSR_INT_BIT_ALIVE) | |
2809 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
2810 | } | |
2811 | #endif | |
2812 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 2813 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 2814 | |
9fbab516 | 2815 | /* HW RF KILL switch toggled */ |
b481de9c ZY |
2816 | if (inta & CSR_INT_BIT_RF_KILL) { |
2817 | int hw_rf_kill = 0; | |
3395f6e9 | 2818 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
2819 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
2820 | hw_rf_kill = 1; | |
2821 | ||
f3d67999 | 2822 | IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n", |
b481de9c ZY |
2823 | hw_rf_kill ? "disable radio":"enable radio"); |
2824 | ||
2825 | /* Queue restart only if RF_KILL switch was set to "kill" | |
2826 | * when we loaded driver, and is now set to "enable". | |
2827 | * After we're Alive, RF_KILL gets handled by | |
3230455d | 2828 | * iwl4965_rx_card_state_notif() */ |
53e49093 ZY |
2829 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) { |
2830 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
b481de9c | 2831 | queue_work(priv->workqueue, &priv->restart); |
53e49093 | 2832 | } |
b481de9c ZY |
2833 | |
2834 | handled |= CSR_INT_BIT_RF_KILL; | |
2835 | } | |
2836 | ||
9fbab516 | 2837 | /* Chip got too hot and stopped itself */ |
b481de9c ZY |
2838 | if (inta & CSR_INT_BIT_CT_KILL) { |
2839 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
2840 | handled |= CSR_INT_BIT_CT_KILL; | |
2841 | } | |
2842 | ||
2843 | /* Error detected by uCode */ | |
2844 | if (inta & CSR_INT_BIT_SW_ERR) { | |
2845 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
2846 | inta); | |
bb8c093b | 2847 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
2848 | handled |= CSR_INT_BIT_SW_ERR; |
2849 | } | |
2850 | ||
2851 | /* uCode wakes up after power-down sleep */ | |
2852 | if (inta & CSR_INT_BIT_WAKEUP) { | |
2853 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
a55360e4 | 2854 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
babcebfa TW |
2855 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
2856 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
2857 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
2858 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
2859 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
2860 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
2861 | |
2862 | handled |= CSR_INT_BIT_WAKEUP; | |
2863 | } | |
2864 | ||
2865 | /* All uCode command responses, including Tx command responses, | |
2866 | * Rx "responses" (frame-received notification), and other | |
2867 | * notifications from uCode come through here*/ | |
2868 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
a55360e4 | 2869 | iwl_rx_handle(priv); |
b481de9c ZY |
2870 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
2871 | } | |
2872 | ||
2873 | if (inta & CSR_INT_BIT_FH_TX) { | |
2874 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
2875 | handled |= CSR_INT_BIT_FH_TX; | |
dbb983b7 RR |
2876 | /* FH finished to write, send event */ |
2877 | priv->ucode_write_complete = 1; | |
2878 | wake_up_interruptible(&priv->wait_command_queue); | |
b481de9c ZY |
2879 | } |
2880 | ||
2881 | if (inta & ~handled) | |
2882 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
2883 | ||
2884 | if (inta & ~CSR_INI_SET_MASK) { | |
2885 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
2886 | inta & ~CSR_INI_SET_MASK); | |
2887 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
2888 | } | |
2889 | ||
2890 | /* Re-enable all interrupts */ | |
0359facc MA |
2891 | /* only Re-enable if diabled by irq */ |
2892 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
2893 | iwl4965_enable_interrupts(priv); | |
b481de9c | 2894 | |
0a6857e7 | 2895 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2896 | if (priv->debug_level & (IWL_DL_ISR)) { |
3395f6e9 TW |
2897 | inta = iwl_read32(priv, CSR_INT); |
2898 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
2899 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
2900 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
2901 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
2902 | } | |
2903 | #endif | |
2904 | spin_unlock_irqrestore(&priv->lock, flags); | |
2905 | } | |
2906 | ||
bb8c093b | 2907 | static irqreturn_t iwl4965_isr(int irq, void *data) |
b481de9c | 2908 | { |
c79dd5b5 | 2909 | struct iwl_priv *priv = data; |
b481de9c ZY |
2910 | u32 inta, inta_mask; |
2911 | u32 inta_fh; | |
2912 | if (!priv) | |
2913 | return IRQ_NONE; | |
2914 | ||
2915 | spin_lock(&priv->lock); | |
2916 | ||
2917 | /* Disable (but don't clear!) interrupts here to avoid | |
2918 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
2919 | * If we have something to service, the tasklet will re-enable ints. | |
2920 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
3395f6e9 TW |
2921 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
2922 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
2923 | |
2924 | /* Discover which interrupts are active/pending */ | |
3395f6e9 TW |
2925 | inta = iwl_read32(priv, CSR_INT); |
2926 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
2927 | |
2928 | /* Ignore interrupt if there's nothing in NIC to service. | |
2929 | * This may be due to IRQ shared with another device, | |
2930 | * or due to sporadic interrupts thrown from our NIC. */ | |
2931 | if (!inta && !inta_fh) { | |
2932 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
2933 | goto none; | |
2934 | } | |
2935 | ||
2936 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
66fbb541 ON |
2937 | /* Hardware disappeared. It might have already raised |
2938 | * an interrupt */ | |
b481de9c | 2939 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); |
66fbb541 | 2940 | goto unplugged; |
b481de9c ZY |
2941 | } |
2942 | ||
2943 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
2944 | inta, inta_mask, inta_fh); | |
2945 | ||
25c03d8e JP |
2946 | inta &= ~CSR_INT_BIT_SCD; |
2947 | ||
bb8c093b | 2948 | /* iwl4965_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
2949 | if (likely(inta || inta_fh)) |
2950 | tasklet_schedule(&priv->irq_tasklet); | |
b481de9c | 2951 | |
66fbb541 ON |
2952 | unplugged: |
2953 | spin_unlock(&priv->lock); | |
b481de9c ZY |
2954 | return IRQ_HANDLED; |
2955 | ||
2956 | none: | |
2957 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
2958 | /* only Re-enable if diabled by irq */ |
2959 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
2960 | iwl4965_enable_interrupts(priv); | |
b481de9c ZY |
2961 | spin_unlock(&priv->lock); |
2962 | return IRQ_NONE; | |
2963 | } | |
2964 | ||
b481de9c ZY |
2965 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
2966 | * sending probe req. This should be set long enough to hear probe responses | |
2967 | * from more than one AP. */ | |
2968 | #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
2969 | #define IWL_ACTIVE_DWELL_TIME_52 (10) | |
2970 | ||
2971 | /* For faster active scanning, scan will move to the next channel if fewer than | |
2972 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
2973 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
2974 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
2975 | * no other traffic). | |
2976 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
2977 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
2978 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */ | |
2979 | ||
2980 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
2981 | * Must be set longer than active dwell time. | |
2982 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
2983 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
2984 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
2985 | #define IWL_PASSIVE_DWELL_BASE (100) | |
2986 | #define IWL_CHANNEL_TUNE_TIME 5 | |
2987 | ||
c79dd5b5 | 2988 | static inline u16 iwl4965_get_active_dwell_time(struct iwl_priv *priv, |
8318d78a | 2989 | enum ieee80211_band band) |
b481de9c | 2990 | { |
8318d78a | 2991 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
2992 | return IWL_ACTIVE_DWELL_TIME_52; |
2993 | else | |
2994 | return IWL_ACTIVE_DWELL_TIME_24; | |
2995 | } | |
2996 | ||
c79dd5b5 | 2997 | static u16 iwl4965_get_passive_dwell_time(struct iwl_priv *priv, |
8318d78a | 2998 | enum ieee80211_band band) |
b481de9c | 2999 | { |
8318d78a JB |
3000 | u16 active = iwl4965_get_active_dwell_time(priv, band); |
3001 | u16 passive = (band != IEEE80211_BAND_5GHZ) ? | |
b481de9c ZY |
3002 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
3003 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
3004 | ||
3109ece1 | 3005 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
3006 | /* If we're associated, we clamp the maximum passive |
3007 | * dwell time to be 98% of the beacon interval (minus | |
3008 | * 2 * channel tune time) */ | |
3009 | passive = priv->beacon_int; | |
3010 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
3011 | passive = IWL_PASSIVE_DWELL_BASE; | |
3012 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
3013 | } | |
3014 | ||
3015 | if (passive <= active) | |
3016 | passive = active + 1; | |
3017 | ||
3018 | return passive; | |
3019 | } | |
3020 | ||
c79dd5b5 | 3021 | static int iwl4965_get_channels_for_scan(struct iwl_priv *priv, |
8318d78a | 3022 | enum ieee80211_band band, |
b481de9c | 3023 | u8 is_active, u8 direct_mask, |
bb8c093b | 3024 | struct iwl4965_scan_channel *scan_ch) |
b481de9c ZY |
3025 | { |
3026 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 3027 | const struct ieee80211_supported_band *sband; |
bf85ea4f | 3028 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
3029 | u16 passive_dwell = 0; |
3030 | u16 active_dwell = 0; | |
3031 | int added, i; | |
3032 | ||
d1141dfb | 3033 | sband = iwl_get_hw_mode(priv, band); |
8318d78a | 3034 | if (!sband) |
b481de9c ZY |
3035 | return 0; |
3036 | ||
8318d78a | 3037 | channels = sband->channels; |
b481de9c | 3038 | |
8318d78a JB |
3039 | active_dwell = iwl4965_get_active_dwell_time(priv, band); |
3040 | passive_dwell = iwl4965_get_passive_dwell_time(priv, band); | |
b481de9c | 3041 | |
8318d78a | 3042 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
3043 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
3044 | continue; | |
3045 | ||
8318d78a | 3046 | scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq); |
b481de9c | 3047 | |
8622e705 | 3048 | ch_info = iwl_get_channel_info(priv, band, |
9fbab516 | 3049 | scan_ch->channel); |
b481de9c ZY |
3050 | if (!is_channel_valid(ch_info)) { |
3051 | IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n", | |
3052 | scan_ch->channel); | |
3053 | continue; | |
3054 | } | |
3055 | ||
3056 | if (!is_active || is_channel_passive(ch_info) || | |
8318d78a | 3057 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) |
b481de9c ZY |
3058 | scan_ch->type = 0; /* passive */ |
3059 | else | |
3060 | scan_ch->type = 1; /* active */ | |
3061 | ||
3062 | if (scan_ch->type & 1) | |
3063 | scan_ch->type |= (direct_mask << 1); | |
3064 | ||
b481de9c ZY |
3065 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
3066 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
3067 | ||
9fbab516 | 3068 | /* Set txpower levels to defaults */ |
b481de9c ZY |
3069 | scan_ch->tpc.dsp_atten = 110; |
3070 | /* scan_pwr_info->tpc.dsp_atten; */ | |
3071 | ||
3072 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 3073 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
3074 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
3075 | else { | |
3076 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
3077 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 3078 | * power level: |
8a1b0245 | 3079 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
3080 | */ |
3081 | } | |
3082 | ||
3083 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
3084 | scan_ch->channel, | |
3085 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
3086 | (scan_ch->type & 1) ? | |
3087 | active_dwell : passive_dwell); | |
3088 | ||
3089 | scan_ch++; | |
3090 | added++; | |
3091 | } | |
3092 | ||
3093 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
3094 | return added; | |
3095 | } | |
3096 | ||
b481de9c ZY |
3097 | /****************************************************************************** |
3098 | * | |
3099 | * uCode download functions | |
3100 | * | |
3101 | ******************************************************************************/ | |
3102 | ||
c79dd5b5 | 3103 | static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 3104 | { |
98c92211 TW |
3105 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
3106 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
3107 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
3108 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
3109 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
3110 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
3111 | } |
3112 | ||
edcdf8b2 RR |
3113 | static void iwl4965_nic_start(struct iwl_priv *priv) |
3114 | { | |
3115 | /* Remove all resets to allow NIC to operate */ | |
3116 | iwl_write32(priv, CSR_RESET, 0); | |
3117 | } | |
3118 | ||
3119 | ||
b481de9c | 3120 | /** |
bb8c093b | 3121 | * iwl4965_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
3122 | * |
3123 | * Copy into buffers for card to fetch via bus-mastering | |
3124 | */ | |
c79dd5b5 | 3125 | static int iwl4965_read_ucode(struct iwl_priv *priv) |
b481de9c | 3126 | { |
bb8c093b | 3127 | struct iwl4965_ucode *ucode; |
90e759d1 | 3128 | int ret; |
b481de9c | 3129 | const struct firmware *ucode_raw; |
4bf775cd | 3130 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
3131 | u8 *src; |
3132 | size_t len; | |
3133 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
3134 | ||
3135 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
3136 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
3137 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
3138 | if (ret < 0) { | |
3139 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
3140 | name, ret); | |
b481de9c ZY |
3141 | goto error; |
3142 | } | |
3143 | ||
3144 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
3145 | name, ucode_raw->size); | |
3146 | ||
3147 | /* Make sure that we got at least our header! */ | |
3148 | if (ucode_raw->size < sizeof(*ucode)) { | |
3149 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 3150 | ret = -EINVAL; |
b481de9c ZY |
3151 | goto err_release; |
3152 | } | |
3153 | ||
3154 | /* Data from ucode file: header followed by uCode images */ | |
3155 | ucode = (void *)ucode_raw->data; | |
3156 | ||
3157 | ver = le32_to_cpu(ucode->ver); | |
3158 | inst_size = le32_to_cpu(ucode->inst_size); | |
3159 | data_size = le32_to_cpu(ucode->data_size); | |
3160 | init_size = le32_to_cpu(ucode->init_size); | |
3161 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
3162 | boot_size = le32_to_cpu(ucode->boot_size); | |
3163 | ||
3164 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
3165 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", | |
3166 | inst_size); | |
3167 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", | |
3168 | data_size); | |
3169 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", | |
3170 | init_size); | |
3171 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", | |
3172 | init_data_size); | |
3173 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", | |
3174 | boot_size); | |
3175 | ||
3176 | /* Verify size of file vs. image size info in file's header */ | |
3177 | if (ucode_raw->size < sizeof(*ucode) + | |
3178 | inst_size + data_size + init_size + | |
3179 | init_data_size + boot_size) { | |
3180 | ||
3181 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
3182 | (int)ucode_raw->size); | |
90e759d1 | 3183 | ret = -EINVAL; |
b481de9c ZY |
3184 | goto err_release; |
3185 | } | |
3186 | ||
3187 | /* Verify that uCode images will fit in card's SRAM */ | |
099b40b7 | 3188 | if (inst_size > priv->hw_params.max_inst_size) { |
90e759d1 TW |
3189 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
3190 | inst_size); | |
3191 | ret = -EINVAL; | |
b481de9c ZY |
3192 | goto err_release; |
3193 | } | |
3194 | ||
099b40b7 | 3195 | if (data_size > priv->hw_params.max_data_size) { |
90e759d1 TW |
3196 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
3197 | data_size); | |
3198 | ret = -EINVAL; | |
b481de9c ZY |
3199 | goto err_release; |
3200 | } | |
099b40b7 | 3201 | if (init_size > priv->hw_params.max_inst_size) { |
b481de9c | 3202 | IWL_DEBUG_INFO |
90e759d1 TW |
3203 | ("uCode init instr len %d too large to fit in\n", |
3204 | init_size); | |
3205 | ret = -EINVAL; | |
b481de9c ZY |
3206 | goto err_release; |
3207 | } | |
099b40b7 | 3208 | if (init_data_size > priv->hw_params.max_data_size) { |
b481de9c | 3209 | IWL_DEBUG_INFO |
90e759d1 TW |
3210 | ("uCode init data len %d too large to fit in\n", |
3211 | init_data_size); | |
3212 | ret = -EINVAL; | |
b481de9c ZY |
3213 | goto err_release; |
3214 | } | |
099b40b7 | 3215 | if (boot_size > priv->hw_params.max_bsm_size) { |
b481de9c | 3216 | IWL_DEBUG_INFO |
90e759d1 TW |
3217 | ("uCode boot instr len %d too large to fit in\n", |
3218 | boot_size); | |
3219 | ret = -EINVAL; | |
b481de9c ZY |
3220 | goto err_release; |
3221 | } | |
3222 | ||
3223 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
3224 | ||
3225 | /* Runtime instructions and 2 copies of data: | |
3226 | * 1) unmodified from disk | |
3227 | * 2) backup cache for save/restore during power-downs */ | |
3228 | priv->ucode_code.len = inst_size; | |
98c92211 | 3229 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
3230 | |
3231 | priv->ucode_data.len = data_size; | |
98c92211 | 3232 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
3233 | |
3234 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 3235 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c ZY |
3236 | |
3237 | /* Initialization instructions and data */ | |
90e759d1 TW |
3238 | if (init_size && init_data_size) { |
3239 | priv->ucode_init.len = init_size; | |
98c92211 | 3240 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
3241 | |
3242 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 3243 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
3244 | |
3245 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
3246 | goto err_pci_alloc; | |
3247 | } | |
b481de9c ZY |
3248 | |
3249 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
3250 | if (boot_size) { |
3251 | priv->ucode_boot.len = boot_size; | |
98c92211 | 3252 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 3253 | |
90e759d1 TW |
3254 | if (!priv->ucode_boot.v_addr) |
3255 | goto err_pci_alloc; | |
3256 | } | |
b481de9c ZY |
3257 | |
3258 | /* Copy images into buffers for card's bus-master reads ... */ | |
3259 | ||
3260 | /* Runtime instructions (first block of data in file) */ | |
3261 | src = &ucode->data[0]; | |
3262 | len = priv->ucode_code.len; | |
90e759d1 | 3263 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
3264 | memcpy(priv->ucode_code.v_addr, src, len); |
3265 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
3266 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
3267 | ||
3268 | /* Runtime data (2nd block) | |
bb8c093b | 3269 | * NOTE: Copy into backup buffer will be done in iwl4965_up() */ |
b481de9c ZY |
3270 | src = &ucode->data[inst_size]; |
3271 | len = priv->ucode_data.len; | |
90e759d1 | 3272 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
3273 | memcpy(priv->ucode_data.v_addr, src, len); |
3274 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
3275 | ||
3276 | /* Initialization instructions (3rd block) */ | |
3277 | if (init_size) { | |
3278 | src = &ucode->data[inst_size + data_size]; | |
3279 | len = priv->ucode_init.len; | |
90e759d1 TW |
3280 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
3281 | len); | |
b481de9c ZY |
3282 | memcpy(priv->ucode_init.v_addr, src, len); |
3283 | } | |
3284 | ||
3285 | /* Initialization data (4th block) */ | |
3286 | if (init_data_size) { | |
3287 | src = &ucode->data[inst_size + data_size + init_size]; | |
3288 | len = priv->ucode_init_data.len; | |
90e759d1 TW |
3289 | IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n", |
3290 | len); | |
b481de9c ZY |
3291 | memcpy(priv->ucode_init_data.v_addr, src, len); |
3292 | } | |
3293 | ||
3294 | /* Bootstrap instructions (5th block) */ | |
3295 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
3296 | len = priv->ucode_boot.len; | |
90e759d1 | 3297 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len); |
b481de9c ZY |
3298 | memcpy(priv->ucode_boot.v_addr, src, len); |
3299 | ||
3300 | /* We have our copies now, allow OS release its copies */ | |
3301 | release_firmware(ucode_raw); | |
3302 | return 0; | |
3303 | ||
3304 | err_pci_alloc: | |
3305 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 3306 | ret = -ENOMEM; |
bb8c093b | 3307 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
3308 | |
3309 | err_release: | |
3310 | release_firmware(ucode_raw); | |
3311 | ||
3312 | error: | |
90e759d1 | 3313 | return ret; |
b481de9c ZY |
3314 | } |
3315 | ||
b481de9c | 3316 | /** |
bb8c093b | 3317 | * iwl4965_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 3318 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 3319 | * Alive gets handled by iwl4965_init_alive_start()). |
b481de9c | 3320 | */ |
c79dd5b5 | 3321 | static void iwl4965_alive_start(struct iwl_priv *priv) |
b481de9c | 3322 | { |
57aab75a | 3323 | int ret = 0; |
b481de9c ZY |
3324 | |
3325 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
3326 | ||
3327 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
3328 | /* We had an error bringing up the hardware, so take it | |
3329 | * all the way back down so we can try again */ | |
3330 | IWL_DEBUG_INFO("Alive failed.\n"); | |
3331 | goto restart; | |
3332 | } | |
3333 | ||
3334 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
3335 | * This is a paranoid check, because we would not have gotten the | |
3336 | * "runtime" alive if code weren't properly loaded. */ | |
b0692f2f | 3337 | if (iwl_verify_ucode(priv)) { |
b481de9c ZY |
3338 | /* Runtime instruction load was bad; |
3339 | * take it all the way back down so we can try again */ | |
3340 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
3341 | goto restart; | |
3342 | } | |
3343 | ||
bf85ea4f | 3344 | iwlcore_clear_stations_table(priv); |
b481de9c | 3345 | |
57aab75a TW |
3346 | ret = priv->cfg->ops->lib->alive_notify(priv); |
3347 | if (ret) { | |
b481de9c | 3348 | IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n", |
57aab75a | 3349 | ret); |
b481de9c ZY |
3350 | goto restart; |
3351 | } | |
3352 | ||
9fbab516 | 3353 | /* After the ALIVE response, we can send host commands to 4965 uCode */ |
b481de9c ZY |
3354 | set_bit(STATUS_ALIVE, &priv->status); |
3355 | ||
3356 | /* Clear out the uCode error bit if it is set */ | |
3357 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
3358 | ||
fee1247a | 3359 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
3360 | return; |
3361 | ||
36d6825b | 3362 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
3363 | |
3364 | priv->active_rate = priv->rates_mask; | |
3365 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
3366 | ||
3109ece1 | 3367 | if (iwl_is_associated(priv)) { |
c1adf9fb GG |
3368 | struct iwl_rxon_cmd *active_rxon = |
3369 | (struct iwl_rxon_cmd *)&priv->active_rxon; | |
b481de9c ZY |
3370 | |
3371 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
3372 | sizeof(priv->staging_rxon)); | |
3373 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
3374 | } else { | |
3375 | /* Initialize our rx_config data */ | |
bb8c093b | 3376 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
3377 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
3378 | } | |
3379 | ||
9fbab516 | 3380 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 3381 | iwl4965_send_bt_config(priv); |
b481de9c ZY |
3382 | |
3383 | /* Configure the adapter for unassociated operation */ | |
bb8c093b | 3384 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3385 | |
3386 | /* At this point, the NIC is initialized and operational */ | |
3387 | priv->notif_missed_beacons = 0; | |
b481de9c ZY |
3388 | |
3389 | iwl4965_rf_kill_ct_config(priv); | |
5a66926a | 3390 | |
fe00b5a5 RC |
3391 | iwl_leds_register(priv); |
3392 | ||
b481de9c | 3393 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 3394 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 3395 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
3396 | |
3397 | if (priv->error_recovering) | |
bb8c093b | 3398 | iwl4965_error_recovery(priv); |
b481de9c | 3399 | |
c8381fdc | 3400 | iwlcore_low_level_notify(priv, IWLCORE_START_EVT); |
84363e6e | 3401 | ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); |
b481de9c ZY |
3402 | return; |
3403 | ||
3404 | restart: | |
3405 | queue_work(priv->workqueue, &priv->restart); | |
3406 | } | |
3407 | ||
c79dd5b5 | 3408 | static void iwl4965_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 3409 | |
c79dd5b5 | 3410 | static void __iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
3411 | { |
3412 | unsigned long flags; | |
3413 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
3414 | struct ieee80211_conf *conf = NULL; | |
3415 | ||
3416 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
3417 | ||
3418 | conf = ieee80211_get_hw_conf(priv->hw); | |
3419 | ||
3420 | if (!exit_pending) | |
3421 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
3422 | ||
ab53d8af MA |
3423 | iwl_leds_unregister(priv); |
3424 | ||
c8381fdc MA |
3425 | iwlcore_low_level_notify(priv, IWLCORE_STOP_EVT); |
3426 | ||
bf85ea4f | 3427 | iwlcore_clear_stations_table(priv); |
b481de9c ZY |
3428 | |
3429 | /* Unblock any waiting calls */ | |
3430 | wake_up_interruptible_all(&priv->wait_command_queue); | |
3431 | ||
b481de9c ZY |
3432 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
3433 | * exiting the module */ | |
3434 | if (!exit_pending) | |
3435 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
3436 | ||
3437 | /* stop and reset the on-board processor */ | |
3395f6e9 | 3438 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
3439 | |
3440 | /* tell the device to stop sending interrupts */ | |
0359facc | 3441 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 3442 | iwl4965_disable_interrupts(priv); |
0359facc MA |
3443 | spin_unlock_irqrestore(&priv->lock, flags); |
3444 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
3445 | |
3446 | if (priv->mac80211_registered) | |
3447 | ieee80211_stop_queues(priv->hw); | |
3448 | ||
bb8c093b | 3449 | /* If we have not previously called iwl4965_init() then |
b481de9c | 3450 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
fee1247a | 3451 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
3452 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
3453 | STATUS_RF_KILL_HW | | |
3454 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
3455 | STATUS_RF_KILL_SW | | |
9788864e RC |
3456 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
3457 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
3458 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
3459 | STATUS_IN_SUSPEND; | |
3460 | goto exit; | |
3461 | } | |
3462 | ||
3463 | /* ...otherwise clear out all the status bits but the RF Kill and | |
3464 | * SUSPEND bits and continue taking the NIC down. */ | |
3465 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
3466 | STATUS_RF_KILL_HW | | |
3467 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
3468 | STATUS_RF_KILL_SW | | |
9788864e RC |
3469 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
3470 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
3471 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
3472 | STATUS_IN_SUSPEND | | |
3473 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
3474 | STATUS_FW_ERROR; | |
3475 | ||
3476 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 3477 | iwl_clear_bit(priv, CSR_GP_CNTRL, |
9fbab516 | 3478 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
3479 | spin_unlock_irqrestore(&priv->lock, flags); |
3480 | ||
bb8c093b CH |
3481 | iwl4965_hw_txq_ctx_stop(priv); |
3482 | iwl4965_hw_rxq_stop(priv); | |
b481de9c ZY |
3483 | |
3484 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
3485 | if (!iwl_grab_nic_access(priv)) { |
3486 | iwl_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 3487 | APMG_CLK_VAL_DMA_CLK_RQT); |
3395f6e9 | 3488 | iwl_release_nic_access(priv); |
b481de9c ZY |
3489 | } |
3490 | spin_unlock_irqrestore(&priv->lock, flags); | |
3491 | ||
3492 | udelay(5); | |
3493 | ||
bb8c093b | 3494 | iwl4965_hw_nic_stop_master(priv); |
3395f6e9 | 3495 | iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); |
bb8c093b | 3496 | iwl4965_hw_nic_reset(priv); |
399f4900 | 3497 | priv->cfg->ops->lib->free_shared_mem(priv); |
b481de9c ZY |
3498 | |
3499 | exit: | |
bb8c093b | 3500 | memset(&priv->card_alive, 0, sizeof(struct iwl4965_alive_resp)); |
b481de9c ZY |
3501 | |
3502 | if (priv->ibss_beacon) | |
3503 | dev_kfree_skb(priv->ibss_beacon); | |
3504 | priv->ibss_beacon = NULL; | |
3505 | ||
3506 | /* clear out any free frames */ | |
fcab423d | 3507 | iwl_clear_free_frames(priv); |
b481de9c ZY |
3508 | } |
3509 | ||
c79dd5b5 | 3510 | static void iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
3511 | { |
3512 | mutex_lock(&priv->mutex); | |
bb8c093b | 3513 | __iwl4965_down(priv); |
b481de9c | 3514 | mutex_unlock(&priv->mutex); |
b24d22b1 | 3515 | |
bb8c093b | 3516 | iwl4965_cancel_deferred_work(priv); |
b481de9c ZY |
3517 | } |
3518 | ||
3519 | #define MAX_HW_RESTARTS 5 | |
3520 | ||
c79dd5b5 | 3521 | static int __iwl4965_up(struct iwl_priv *priv) |
b481de9c | 3522 | { |
57aab75a TW |
3523 | int i; |
3524 | int ret; | |
b481de9c ZY |
3525 | |
3526 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
3527 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
3528 | return -EIO; | |
3529 | } | |
3530 | ||
3531 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
3532 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
3533 | "parameter)\n"); | |
ad97edd2 | 3534 | iwl_rfkill_set_hw_state(priv); |
e655b9f0 ZY |
3535 | return -ENODEV; |
3536 | } | |
3537 | ||
e903fbd4 RC |
3538 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
3539 | IWL_ERROR("ucode not available for device bringup\n"); | |
3540 | return -EIO; | |
3541 | } | |
3542 | ||
e655b9f0 | 3543 | /* If platform's RF_KILL switch is NOT set to KILL */ |
3395f6e9 | 3544 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
e655b9f0 ZY |
3545 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
3546 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3547 | else { | |
3548 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3549 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
ad97edd2 | 3550 | iwl_rfkill_set_hw_state(priv); |
e655b9f0 ZY |
3551 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); |
3552 | return -ENODEV; | |
3553 | } | |
b481de9c ZY |
3554 | } |
3555 | ||
ad97edd2 | 3556 | iwl_rfkill_set_hw_state(priv); |
3395f6e9 | 3557 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 3558 | |
399f4900 RR |
3559 | ret = priv->cfg->ops->lib->alloc_shared_mem(priv); |
3560 | if (ret) { | |
3561 | IWL_ERROR("Unable to allocate shared memory\n"); | |
3562 | return ret; | |
3563 | } | |
3564 | ||
1053d35f | 3565 | ret = iwl_hw_nic_init(priv); |
57aab75a TW |
3566 | if (ret) { |
3567 | IWL_ERROR("Unable to init nic\n"); | |
3568 | return ret; | |
b481de9c ZY |
3569 | } |
3570 | ||
3571 | /* make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
3572 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3573 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
3574 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3575 | ||
3576 | /* clear (again), then enable host interrupts */ | |
3395f6e9 | 3577 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
bb8c093b | 3578 | iwl4965_enable_interrupts(priv); |
b481de9c ZY |
3579 | |
3580 | /* really make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
3581 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3582 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
3583 | |
3584 | /* Copy original ucode data image from disk into backup cache. | |
3585 | * This will be used to initialize the on-board processor's | |
3586 | * data SRAM for a clean start when the runtime program first loads. */ | |
3587 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 3588 | priv->ucode_data.len); |
b481de9c | 3589 | |
e655b9f0 ZY |
3590 | /* We return success when we resume from suspend and rf_kill is on. */ |
3591 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
b481de9c | 3592 | return 0; |
b481de9c ZY |
3593 | |
3594 | for (i = 0; i < MAX_HW_RESTARTS; i++) { | |
3595 | ||
bf85ea4f | 3596 | iwlcore_clear_stations_table(priv); |
b481de9c ZY |
3597 | |
3598 | /* load bootstrap state machine, | |
3599 | * load bootstrap program into processor's memory, | |
3600 | * prepare to load the "initialize" uCode */ | |
57aab75a | 3601 | ret = priv->cfg->ops->lib->load_ucode(priv); |
b481de9c | 3602 | |
57aab75a TW |
3603 | if (ret) { |
3604 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret); | |
b481de9c ZY |
3605 | continue; |
3606 | } | |
3607 | ||
3608 | /* start card; "initialize" will load runtime ucode */ | |
edcdf8b2 | 3609 | iwl4965_nic_start(priv); |
b481de9c | 3610 | |
b481de9c ZY |
3611 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
3612 | ||
3613 | return 0; | |
3614 | } | |
3615 | ||
3616 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 3617 | __iwl4965_down(priv); |
b481de9c ZY |
3618 | |
3619 | /* tried to restart and config the device for as long as our | |
3620 | * patience could withstand */ | |
3621 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
3622 | return -EIO; | |
3623 | } | |
3624 | ||
3625 | ||
3626 | /***************************************************************************** | |
3627 | * | |
3628 | * Workqueue callbacks | |
3629 | * | |
3630 | *****************************************************************************/ | |
3631 | ||
bb8c093b | 3632 | static void iwl4965_bg_init_alive_start(struct work_struct *data) |
b481de9c | 3633 | { |
c79dd5b5 TW |
3634 | struct iwl_priv *priv = |
3635 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
3636 | |
3637 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3638 | return; | |
3639 | ||
3640 | mutex_lock(&priv->mutex); | |
f3ccc08c | 3641 | priv->cfg->ops->lib->init_alive_start(priv); |
b481de9c ZY |
3642 | mutex_unlock(&priv->mutex); |
3643 | } | |
3644 | ||
bb8c093b | 3645 | static void iwl4965_bg_alive_start(struct work_struct *data) |
b481de9c | 3646 | { |
c79dd5b5 TW |
3647 | struct iwl_priv *priv = |
3648 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
3649 | |
3650 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3651 | return; | |
3652 | ||
3653 | mutex_lock(&priv->mutex); | |
bb8c093b | 3654 | iwl4965_alive_start(priv); |
b481de9c ZY |
3655 | mutex_unlock(&priv->mutex); |
3656 | } | |
3657 | ||
bb8c093b | 3658 | static void iwl4965_bg_rf_kill(struct work_struct *work) |
b481de9c | 3659 | { |
c79dd5b5 | 3660 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); |
b481de9c ZY |
3661 | |
3662 | wake_up_interruptible(&priv->wait_command_queue); | |
3663 | ||
3664 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3665 | return; | |
3666 | ||
3667 | mutex_lock(&priv->mutex); | |
3668 | ||
fee1247a | 3669 | if (!iwl_is_rfkill(priv)) { |
f3d67999 | 3670 | IWL_DEBUG(IWL_DL_RF_KILL, |
b481de9c ZY |
3671 | "HW and/or SW RF Kill no longer active, restarting " |
3672 | "device\n"); | |
3673 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3674 | queue_work(priv->workqueue, &priv->restart); | |
3675 | } else { | |
ad97edd2 MA |
3676 | /* make sure mac80211 stop sending Tx frame */ |
3677 | if (priv->mac80211_registered) | |
3678 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
3679 | |
3680 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
3681 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
3682 | "disabled by SW switch\n"); | |
3683 | else | |
3684 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
3685 | "Kill switch must be turned off for " | |
3686 | "wireless networking to work.\n"); | |
3687 | } | |
ad97edd2 MA |
3688 | iwl_rfkill_set_hw_state(priv); |
3689 | ||
b481de9c ZY |
3690 | mutex_unlock(&priv->mutex); |
3691 | } | |
3692 | ||
4419e39b AK |
3693 | static void iwl4965_bg_set_monitor(struct work_struct *work) |
3694 | { | |
3695 | struct iwl_priv *priv = container_of(work, | |
3696 | struct iwl_priv, set_monitor); | |
3697 | ||
3698 | IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n"); | |
3699 | ||
3700 | mutex_lock(&priv->mutex); | |
3701 | ||
3702 | if (!iwl_is_ready(priv)) | |
3703 | IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); | |
3704 | else | |
3705 | if (iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0) | |
3706 | IWL_ERROR("iwl4965_set_mode() failed\n"); | |
3707 | ||
3708 | mutex_unlock(&priv->mutex); | |
3709 | } | |
3710 | ||
b481de9c ZY |
3711 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
3712 | ||
bb8c093b | 3713 | static void iwl4965_bg_scan_check(struct work_struct *data) |
b481de9c | 3714 | { |
c79dd5b5 TW |
3715 | struct iwl_priv *priv = |
3716 | container_of(data, struct iwl_priv, scan_check.work); | |
b481de9c ZY |
3717 | |
3718 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3719 | return; | |
3720 | ||
3721 | mutex_lock(&priv->mutex); | |
3722 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
3723 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
f3d67999 EK |
3724 | IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting " |
3725 | "adapter (%dms)\n", | |
3726 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
052c4b9f | 3727 | |
b481de9c | 3728 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 3729 | iwl4965_send_scan_abort(priv); |
b481de9c ZY |
3730 | } |
3731 | mutex_unlock(&priv->mutex); | |
3732 | } | |
3733 | ||
bb8c093b | 3734 | static void iwl4965_bg_request_scan(struct work_struct *data) |
b481de9c | 3735 | { |
c79dd5b5 TW |
3736 | struct iwl_priv *priv = |
3737 | container_of(data, struct iwl_priv, request_scan); | |
857485c0 | 3738 | struct iwl_host_cmd cmd = { |
b481de9c | 3739 | .id = REPLY_SCAN_CMD, |
bb8c093b | 3740 | .len = sizeof(struct iwl4965_scan_cmd), |
b481de9c ZY |
3741 | .meta.flags = CMD_SIZE_HUGE, |
3742 | }; | |
bb8c093b | 3743 | struct iwl4965_scan_cmd *scan; |
b481de9c | 3744 | struct ieee80211_conf *conf = NULL; |
78330fdd | 3745 | u16 cmd_len; |
8318d78a | 3746 | enum ieee80211_band band; |
78330fdd | 3747 | u8 direct_mask; |
857485c0 | 3748 | int ret = 0; |
b481de9c ZY |
3749 | |
3750 | conf = ieee80211_get_hw_conf(priv->hw); | |
3751 | ||
3752 | mutex_lock(&priv->mutex); | |
3753 | ||
fee1247a | 3754 | if (!iwl_is_ready(priv)) { |
b481de9c ZY |
3755 | IWL_WARNING("request scan called when driver not ready.\n"); |
3756 | goto done; | |
3757 | } | |
3758 | ||
3759 | /* Make sure the scan wasn't cancelled before this queued work | |
3760 | * was given the chance to run... */ | |
3761 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
3762 | goto done; | |
3763 | ||
3764 | /* This should never be called or scheduled if there is currently | |
3765 | * a scan active in the hardware. */ | |
3766 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
3767 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
3768 | "Ignoring second request.\n"); | |
857485c0 | 3769 | ret = -EIO; |
b481de9c ZY |
3770 | goto done; |
3771 | } | |
3772 | ||
3773 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
3774 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
3775 | goto done; | |
3776 | } | |
3777 | ||
3778 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3779 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
3780 | goto done; | |
3781 | } | |
3782 | ||
fee1247a | 3783 | if (iwl_is_rfkill(priv)) { |
b481de9c ZY |
3784 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
3785 | goto done; | |
3786 | } | |
3787 | ||
3788 | if (!test_bit(STATUS_READY, &priv->status)) { | |
3789 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
3790 | goto done; | |
3791 | } | |
3792 | ||
3793 | if (!priv->scan_bands) { | |
3794 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
3795 | goto done; | |
3796 | } | |
3797 | ||
3798 | if (!priv->scan) { | |
bb8c093b | 3799 | priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) + |
b481de9c ZY |
3800 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
3801 | if (!priv->scan) { | |
857485c0 | 3802 | ret = -ENOMEM; |
b481de9c ZY |
3803 | goto done; |
3804 | } | |
3805 | } | |
3806 | scan = priv->scan; | |
bb8c093b | 3807 | memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
3808 | |
3809 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
3810 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
3811 | ||
3109ece1 | 3812 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
3813 | u16 interval = 0; |
3814 | u32 extra; | |
3815 | u32 suspend_time = 100; | |
3816 | u32 scan_suspend_time = 100; | |
3817 | unsigned long flags; | |
3818 | ||
3819 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
3820 | ||
3821 | spin_lock_irqsave(&priv->lock, flags); | |
3822 | interval = priv->beacon_int; | |
3823 | spin_unlock_irqrestore(&priv->lock, flags); | |
3824 | ||
3825 | scan->suspend_time = 0; | |
052c4b9f | 3826 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
3827 | if (!interval) |
3828 | interval = suspend_time; | |
3829 | ||
3830 | extra = (suspend_time / interval) << 22; | |
3831 | scan_suspend_time = (extra | | |
3832 | ((suspend_time % interval) * 1024)); | |
3833 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
3834 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
3835 | scan_suspend_time, interval); | |
3836 | } | |
3837 | ||
3838 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
3839 | if (priv->one_direct_scan) { | |
3840 | IWL_DEBUG_SCAN | |
3841 | ("Kicking off one direct scan for '%s'\n", | |
bb8c093b | 3842 | iwl4965_escape_essid(priv->direct_ssid, |
b481de9c ZY |
3843 | priv->direct_ssid_len)); |
3844 | scan->direct_scan[0].id = WLAN_EID_SSID; | |
3845 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
3846 | memcpy(scan->direct_scan[0].ssid, | |
3847 | priv->direct_ssid, priv->direct_ssid_len); | |
3848 | direct_mask = 1; | |
3109ece1 | 3849 | } else if (!iwl_is_associated(priv) && priv->essid_len) { |
786b4557 BM |
3850 | IWL_DEBUG_SCAN |
3851 | ("Kicking off one direct scan for '%s' when not associated\n", | |
3852 | iwl4965_escape_essid(priv->essid, priv->essid_len)); | |
b481de9c ZY |
3853 | scan->direct_scan[0].id = WLAN_EID_SSID; |
3854 | scan->direct_scan[0].len = priv->essid_len; | |
3855 | memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len); | |
3856 | direct_mask = 1; | |
857485c0 | 3857 | } else { |
786b4557 | 3858 | IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); |
b481de9c | 3859 | direct_mask = 0; |
857485c0 | 3860 | } |
b481de9c | 3861 | |
b481de9c | 3862 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
5425e490 | 3863 | scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; |
b481de9c ZY |
3864 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
3865 | ||
b481de9c ZY |
3866 | |
3867 | switch (priv->scan_bands) { | |
3868 | case 2: | |
3869 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; | |
3870 | scan->tx_cmd.rate_n_flags = | |
bb8c093b | 3871 | iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP, |
b481de9c ZY |
3872 | RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK); |
3873 | ||
3874 | scan->good_CRC_th = 0; | |
8318d78a | 3875 | band = IEEE80211_BAND_2GHZ; |
b481de9c ZY |
3876 | break; |
3877 | ||
3878 | case 1: | |
3879 | scan->tx_cmd.rate_n_flags = | |
bb8c093b | 3880 | iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP, |
b481de9c ZY |
3881 | RATE_MCS_ANT_B_MSK); |
3882 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 3883 | band = IEEE80211_BAND_5GHZ; |
b481de9c ZY |
3884 | break; |
3885 | ||
3886 | default: | |
3887 | IWL_WARNING("Invalid scan band count\n"); | |
3888 | goto done; | |
3889 | } | |
3890 | ||
78330fdd TW |
3891 | /* We don't build a direct scan probe request; the uCode will do |
3892 | * that based on the direct_mask added to each channel entry */ | |
3893 | cmd_len = iwl4965_fill_probe_req(priv, band, | |
3894 | (struct ieee80211_mgmt *)scan->data, | |
3895 | IWL_MAX_SCAN_SIZE - sizeof(*scan), 0); | |
3896 | ||
3897 | scan->tx_cmd.len = cpu_to_le16(cmd_len); | |
b481de9c ZY |
3898 | /* select Rx chains */ |
3899 | ||
3900 | /* Force use of chains B and C (0x6) for scan Rx. | |
3901 | * Avoid A (0x1) because of its off-channel reception on A-band. | |
3902 | * MIMO is not used here, but value is required to make uCode happy. */ | |
3903 | scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK | | |
3904 | cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) | | |
3905 | (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) | | |
3906 | (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS)); | |
3907 | ||
3908 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) | |
3909 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; | |
3910 | ||
786b4557 | 3911 | if (direct_mask) |
26c0f03f RC |
3912 | scan->channel_count = |
3913 | iwl4965_get_channels_for_scan( | |
3914 | priv, band, 1, /* active */ | |
3915 | direct_mask, | |
3916 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
786b4557 | 3917 | else |
26c0f03f RC |
3918 | scan->channel_count = |
3919 | iwl4965_get_channels_for_scan( | |
3920 | priv, band, 0, /* passive */ | |
3921 | direct_mask, | |
3922 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c | 3923 | |
5da4b55f MA |
3924 | scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK | |
3925 | RXON_FILTER_BCON_AWARE_MSK); | |
b481de9c | 3926 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 3927 | scan->channel_count * sizeof(struct iwl4965_scan_channel); |
b481de9c ZY |
3928 | cmd.data = scan; |
3929 | scan->len = cpu_to_le16(cmd.len); | |
3930 | ||
3931 | set_bit(STATUS_SCAN_HW, &priv->status); | |
857485c0 TW |
3932 | ret = iwl_send_cmd_sync(priv, &cmd); |
3933 | if (ret) | |
b481de9c ZY |
3934 | goto done; |
3935 | ||
3936 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
3937 | IWL_SCAN_CHECK_WATCHDOG); | |
3938 | ||
3939 | mutex_unlock(&priv->mutex); | |
3940 | return; | |
3941 | ||
3942 | done: | |
01ebd063 | 3943 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
3944 | queue_work(priv->workqueue, &priv->scan_completed); |
3945 | mutex_unlock(&priv->mutex); | |
3946 | } | |
3947 | ||
bb8c093b | 3948 | static void iwl4965_bg_up(struct work_struct *data) |
b481de9c | 3949 | { |
c79dd5b5 | 3950 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
3951 | |
3952 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3953 | return; | |
3954 | ||
3955 | mutex_lock(&priv->mutex); | |
bb8c093b | 3956 | __iwl4965_up(priv); |
b481de9c ZY |
3957 | mutex_unlock(&priv->mutex); |
3958 | } | |
3959 | ||
bb8c093b | 3960 | static void iwl4965_bg_restart(struct work_struct *data) |
b481de9c | 3961 | { |
c79dd5b5 | 3962 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
3963 | |
3964 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3965 | return; | |
3966 | ||
bb8c093b | 3967 | iwl4965_down(priv); |
b481de9c ZY |
3968 | queue_work(priv->workqueue, &priv->up); |
3969 | } | |
3970 | ||
bb8c093b | 3971 | static void iwl4965_bg_rx_replenish(struct work_struct *data) |
b481de9c | 3972 | { |
c79dd5b5 TW |
3973 | struct iwl_priv *priv = |
3974 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
3975 | |
3976 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3977 | return; | |
3978 | ||
3979 | mutex_lock(&priv->mutex); | |
a55360e4 | 3980 | iwl_rx_replenish(priv); |
b481de9c ZY |
3981 | mutex_unlock(&priv->mutex); |
3982 | } | |
3983 | ||
7878a5a4 MA |
3984 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
3985 | ||
508e32e1 | 3986 | static void iwl4965_post_associate(struct iwl_priv *priv) |
b481de9c | 3987 | { |
b481de9c | 3988 | struct ieee80211_conf *conf = NULL; |
857485c0 | 3989 | int ret = 0; |
0795af57 | 3990 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
3991 | |
3992 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
3993 | IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__); | |
3994 | return; | |
3995 | } | |
3996 | ||
0795af57 JP |
3997 | IWL_DEBUG_ASSOC("Associated as %d to: %s\n", |
3998 | priv->assoc_id, | |
3999 | print_mac(mac, priv->active_rxon.bssid_addr)); | |
b481de9c ZY |
4000 | |
4001 | ||
4002 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
4003 | return; | |
4004 | ||
b481de9c | 4005 | |
508e32e1 | 4006 | if (!priv->vif || !priv->is_open) |
948c171c | 4007 | return; |
508e32e1 | 4008 | |
bb8c093b | 4009 | iwl4965_scan_cancel_timeout(priv, 200); |
052c4b9f | 4010 | |
b481de9c ZY |
4011 | conf = ieee80211_get_hw_conf(priv->hw); |
4012 | ||
4013 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4014 | iwl4965_commit_rxon(priv); |
b481de9c | 4015 | |
bb8c093b CH |
4016 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
4017 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 4018 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 4019 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 4020 | if (ret) |
b481de9c ZY |
4021 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
4022 | "Attempting to continue.\n"); | |
4023 | ||
4024 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
4025 | ||
c8b0e6e1 | 4026 | #ifdef CONFIG_IWL4965_HT |
fd105e79 | 4027 | if (priv->current_ht_config.is_ht) |
47c5196e | 4028 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
c8b0e6e1 | 4029 | #endif /* CONFIG_IWL4965_HT*/ |
c7de35cd | 4030 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
4031 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
4032 | ||
4033 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
4034 | priv->assoc_id, priv->beacon_int); | |
4035 | ||
4036 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
4037 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
4038 | else | |
4039 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
4040 | ||
4041 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
4042 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
4043 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
4044 | else | |
4045 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
4046 | ||
4047 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
4048 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
4049 | ||
4050 | } | |
4051 | ||
bb8c093b | 4052 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4053 | |
4054 | switch (priv->iw_mode) { | |
4055 | case IEEE80211_IF_TYPE_STA: | |
bb8c093b | 4056 | iwl4965_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
4057 | break; |
4058 | ||
4059 | case IEEE80211_IF_TYPE_IBSS: | |
4060 | ||
4061 | /* clear out the station table */ | |
bf85ea4f | 4062 | iwlcore_clear_stations_table(priv); |
b481de9c | 4063 | |
4f40e4d9 TW |
4064 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
4065 | iwl_rxon_add_station(priv, priv->bssid, 0); | |
bb8c093b CH |
4066 | iwl4965_rate_scale_init(priv->hw, IWL_STA_ID); |
4067 | iwl4965_send_beacon_cmd(priv); | |
b481de9c ZY |
4068 | |
4069 | break; | |
4070 | ||
4071 | default: | |
4072 | IWL_ERROR("%s Should not be called in %d mode\n", | |
4073 | __FUNCTION__, priv->iw_mode); | |
4074 | break; | |
4075 | } | |
4076 | ||
bb8c093b | 4077 | iwl4965_sequence_reset(priv); |
b481de9c | 4078 | |
b481de9c | 4079 | /* Enable Rx differential gain and sensitivity calibrations */ |
f0832f13 | 4080 | iwl_chain_noise_reset(priv); |
b481de9c | 4081 | priv->start_calib = 1; |
b481de9c ZY |
4082 | |
4083 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
4084 | priv->assoc_station_added = 1; | |
4085 | ||
bb8c093b | 4086 | iwl4965_activate_qos(priv, 0); |
292ae174 | 4087 | |
5da4b55f | 4088 | iwl_power_update_mode(priv, 0); |
7878a5a4 MA |
4089 | /* we have just associated, don't start scan too early */ |
4090 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
508e32e1 RC |
4091 | } |
4092 | ||
4093 | ||
4094 | static void iwl4965_bg_post_associate(struct work_struct *data) | |
4095 | { | |
4096 | struct iwl_priv *priv = container_of(data, struct iwl_priv, | |
4097 | post_associate.work); | |
4098 | ||
4099 | mutex_lock(&priv->mutex); | |
4100 | iwl4965_post_associate(priv); | |
b481de9c | 4101 | mutex_unlock(&priv->mutex); |
508e32e1 | 4102 | |
b481de9c ZY |
4103 | } |
4104 | ||
bb8c093b | 4105 | static void iwl4965_bg_abort_scan(struct work_struct *work) |
b481de9c | 4106 | { |
c79dd5b5 | 4107 | struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan); |
b481de9c | 4108 | |
fee1247a | 4109 | if (!iwl_is_ready(priv)) |
b481de9c ZY |
4110 | return; |
4111 | ||
4112 | mutex_lock(&priv->mutex); | |
4113 | ||
4114 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 4115 | iwl4965_send_scan_abort(priv); |
b481de9c ZY |
4116 | |
4117 | mutex_unlock(&priv->mutex); | |
4118 | } | |
4119 | ||
76bb77e0 ZY |
4120 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
4121 | ||
bb8c093b | 4122 | static void iwl4965_bg_scan_completed(struct work_struct *work) |
b481de9c | 4123 | { |
c79dd5b5 TW |
4124 | struct iwl_priv *priv = |
4125 | container_of(work, struct iwl_priv, scan_completed); | |
b481de9c | 4126 | |
f3d67999 | 4127 | IWL_DEBUG(IWL_DL_SCAN, "SCAN complete scan\n"); |
b481de9c ZY |
4128 | |
4129 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
4130 | return; | |
4131 | ||
a0646470 ZY |
4132 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
4133 | iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw)); | |
76bb77e0 | 4134 | |
b481de9c ZY |
4135 | ieee80211_scan_completed(priv->hw); |
4136 | ||
4137 | /* Since setting the TXPOWER may have been deferred while | |
4138 | * performing the scan, fire one off */ | |
4139 | mutex_lock(&priv->mutex); | |
bb8c093b | 4140 | iwl4965_hw_reg_send_txpower(priv); |
b481de9c ZY |
4141 | mutex_unlock(&priv->mutex); |
4142 | } | |
4143 | ||
4144 | /***************************************************************************** | |
4145 | * | |
4146 | * mac80211 entry point functions | |
4147 | * | |
4148 | *****************************************************************************/ | |
4149 | ||
5a66926a ZY |
4150 | #define UCODE_READY_TIMEOUT (2 * HZ) |
4151 | ||
bb8c093b | 4152 | static int iwl4965_mac_start(struct ieee80211_hw *hw) |
b481de9c | 4153 | { |
c79dd5b5 | 4154 | struct iwl_priv *priv = hw->priv; |
5a66926a | 4155 | int ret; |
b481de9c ZY |
4156 | |
4157 | IWL_DEBUG_MAC80211("enter\n"); | |
4158 | ||
5a66926a ZY |
4159 | if (pci_enable_device(priv->pci_dev)) { |
4160 | IWL_ERROR("Fail to pci_enable_device\n"); | |
4161 | return -ENODEV; | |
4162 | } | |
4163 | pci_restore_state(priv->pci_dev); | |
4164 | pci_enable_msi(priv->pci_dev); | |
4165 | ||
4166 | ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED, | |
4167 | DRV_NAME, priv); | |
4168 | if (ret) { | |
4169 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
4170 | goto out_disable_msi; | |
4171 | } | |
4172 | ||
b481de9c ZY |
4173 | /* we should be verifying the device is ready to be opened */ |
4174 | mutex_lock(&priv->mutex); | |
4175 | ||
c1adf9fb | 4176 | memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); |
5a66926a ZY |
4177 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
4178 | * ucode filename and max sizes are card-specific. */ | |
b481de9c | 4179 | |
5a66926a ZY |
4180 | if (!priv->ucode_code.len) { |
4181 | ret = iwl4965_read_ucode(priv); | |
4182 | if (ret) { | |
4183 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
4184 | mutex_unlock(&priv->mutex); | |
4185 | goto out_release_irq; | |
4186 | } | |
4187 | } | |
b481de9c | 4188 | |
e655b9f0 | 4189 | ret = __iwl4965_up(priv); |
5a66926a | 4190 | |
b481de9c | 4191 | mutex_unlock(&priv->mutex); |
5a66926a | 4192 | |
e655b9f0 ZY |
4193 | if (ret) |
4194 | goto out_release_irq; | |
4195 | ||
4196 | IWL_DEBUG_INFO("Start UP work done.\n"); | |
4197 | ||
4198 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
4199 | return 0; | |
4200 | ||
5a66926a ZY |
4201 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
4202 | * mac80211 will not be run successfully. */ | |
4203 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
4204 | test_bit(STATUS_READY, &priv->status), | |
4205 | UCODE_READY_TIMEOUT); | |
4206 | if (!ret) { | |
4207 | if (!test_bit(STATUS_READY, &priv->status)) { | |
4208 | IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n", | |
4209 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
4210 | ret = -ETIMEDOUT; | |
4211 | goto out_release_irq; | |
4212 | } | |
4213 | } | |
4214 | ||
e655b9f0 | 4215 | priv->is_open = 1; |
b481de9c ZY |
4216 | IWL_DEBUG_MAC80211("leave\n"); |
4217 | return 0; | |
5a66926a ZY |
4218 | |
4219 | out_release_irq: | |
4220 | free_irq(priv->pci_dev->irq, priv); | |
4221 | out_disable_msi: | |
4222 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
4223 | pci_disable_device(priv->pci_dev); |
4224 | priv->is_open = 0; | |
4225 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 4226 | return ret; |
b481de9c ZY |
4227 | } |
4228 | ||
bb8c093b | 4229 | static void iwl4965_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 4230 | { |
c79dd5b5 | 4231 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4232 | |
4233 | IWL_DEBUG_MAC80211("enter\n"); | |
948c171c | 4234 | |
e655b9f0 ZY |
4235 | if (!priv->is_open) { |
4236 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
4237 | return; | |
4238 | } | |
4239 | ||
b481de9c | 4240 | priv->is_open = 0; |
5a66926a | 4241 | |
fee1247a | 4242 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
4243 | /* stop mac, cancel any scan request and clear |
4244 | * RXON_FILTER_ASSOC_MSK BIT | |
4245 | */ | |
5a66926a ZY |
4246 | mutex_lock(&priv->mutex); |
4247 | iwl4965_scan_cancel_timeout(priv, 100); | |
4248 | cancel_delayed_work(&priv->post_associate); | |
fde3571f | 4249 | mutex_unlock(&priv->mutex); |
fde3571f MA |
4250 | } |
4251 | ||
5a66926a ZY |
4252 | iwl4965_down(priv); |
4253 | ||
4254 | flush_workqueue(priv->workqueue); | |
4255 | free_irq(priv->pci_dev->irq, priv); | |
4256 | pci_disable_msi(priv->pci_dev); | |
4257 | pci_save_state(priv->pci_dev); | |
4258 | pci_disable_device(priv->pci_dev); | |
948c171c | 4259 | |
b481de9c | 4260 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
4261 | } |
4262 | ||
e039fa4a | 4263 | static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 4264 | { |
c79dd5b5 | 4265 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4266 | |
4267 | IWL_DEBUG_MAC80211("enter\n"); | |
4268 | ||
4269 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
4270 | IWL_DEBUG_MAC80211("leave - monitor\n"); | |
4271 | return -1; | |
4272 | } | |
4273 | ||
4274 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, | |
e039fa4a | 4275 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 4276 | |
e039fa4a | 4277 | if (iwl_tx_skb(priv, skb)) |
b481de9c ZY |
4278 | dev_kfree_skb_any(skb); |
4279 | ||
4280 | IWL_DEBUG_MAC80211("leave\n"); | |
4281 | return 0; | |
4282 | } | |
4283 | ||
bb8c093b | 4284 | static int iwl4965_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
4285 | struct ieee80211_if_init_conf *conf) |
4286 | { | |
c79dd5b5 | 4287 | struct iwl_priv *priv = hw->priv; |
b481de9c | 4288 | unsigned long flags; |
0795af57 | 4289 | DECLARE_MAC_BUF(mac); |
b481de9c | 4290 | |
32bfd35d | 4291 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 4292 | |
32bfd35d JB |
4293 | if (priv->vif) { |
4294 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
75849d28 | 4295 | return -EOPNOTSUPP; |
b481de9c ZY |
4296 | } |
4297 | ||
4298 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 4299 | priv->vif = conf->vif; |
b481de9c ZY |
4300 | |
4301 | spin_unlock_irqrestore(&priv->lock, flags); | |
4302 | ||
4303 | mutex_lock(&priv->mutex); | |
864792e3 TW |
4304 | |
4305 | if (conf->mac_addr) { | |
4306 | IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr)); | |
4307 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); | |
4308 | } | |
b481de9c | 4309 | |
fee1247a | 4310 | if (iwl_is_ready(priv)) |
5a66926a ZY |
4311 | iwl4965_set_mode(priv, conf->type); |
4312 | ||
b481de9c ZY |
4313 | mutex_unlock(&priv->mutex); |
4314 | ||
5a66926a | 4315 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
4316 | return 0; |
4317 | } | |
4318 | ||
4319 | /** | |
bb8c093b | 4320 | * iwl4965_mac_config - mac80211 config callback |
b481de9c ZY |
4321 | * |
4322 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
4323 | * be set inappropriately and the driver currently sets the hardware up to | |
4324 | * use it whenever needed. | |
4325 | */ | |
bb8c093b | 4326 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) |
b481de9c | 4327 | { |
c79dd5b5 | 4328 | struct iwl_priv *priv = hw->priv; |
bf85ea4f | 4329 | const struct iwl_channel_info *ch_info; |
b481de9c | 4330 | unsigned long flags; |
76bb77e0 | 4331 | int ret = 0; |
b481de9c ZY |
4332 | |
4333 | mutex_lock(&priv->mutex); | |
8318d78a | 4334 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 4335 | |
12342c47 ZY |
4336 | priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
4337 | ||
fee1247a | 4338 | if (!iwl_is_ready(priv)) { |
b481de9c | 4339 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
4340 | ret = -EIO; |
4341 | goto out; | |
b481de9c ZY |
4342 | } |
4343 | ||
1ea87396 | 4344 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
b481de9c | 4345 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
4346 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
4347 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 4348 | mutex_unlock(&priv->mutex); |
a0646470 | 4349 | return 0; |
b481de9c ZY |
4350 | } |
4351 | ||
4352 | spin_lock_irqsave(&priv->lock, flags); | |
4353 | ||
8622e705 | 4354 | ch_info = iwl_get_channel_info(priv, conf->channel->band, |
8318d78a | 4355 | ieee80211_frequency_to_channel(conf->channel->center_freq)); |
b481de9c | 4356 | if (!is_channel_valid(ch_info)) { |
b481de9c ZY |
4357 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
4358 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
4359 | ret = -EINVAL; |
4360 | goto out; | |
b481de9c ZY |
4361 | } |
4362 | ||
c8b0e6e1 | 4363 | #ifdef CONFIG_IWL4965_HT |
78330fdd | 4364 | /* if we are switching from ht to 2.4 clear flags |
b481de9c ZY |
4365 | * from any ht related info since 2.4 does not |
4366 | * support ht */ | |
78330fdd | 4367 | if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel->hw_value) |
b481de9c ZY |
4368 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH |
4369 | && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) | |
4370 | #endif | |
4371 | ) | |
4372 | priv->staging_rxon.flags = 0; | |
c8b0e6e1 | 4373 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 4374 | |
c7de35cd | 4375 | iwl_set_rxon_channel(priv, conf->channel->band, |
8318d78a | 4376 | ieee80211_frequency_to_channel(conf->channel->center_freq)); |
b481de9c | 4377 | |
8318d78a | 4378 | iwl4965_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
4379 | |
4380 | /* The list of supported rates and rate mask can be different | |
8318d78a | 4381 | * for each band; since the band may have changed, reset |
b481de9c | 4382 | * the rate mask to what mac80211 lists */ |
bb8c093b | 4383 | iwl4965_set_rate(priv); |
b481de9c ZY |
4384 | |
4385 | spin_unlock_irqrestore(&priv->lock, flags); | |
4386 | ||
4387 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
4388 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 4389 | iwl4965_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 4390 | goto out; |
b481de9c ZY |
4391 | } |
4392 | #endif | |
4393 | ||
ad97edd2 MA |
4394 | if (priv->cfg->ops->lib->radio_kill_sw) |
4395 | priv->cfg->ops->lib->radio_kill_sw(priv, !conf->radio_enabled); | |
b481de9c ZY |
4396 | |
4397 | if (!conf->radio_enabled) { | |
4398 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 4399 | goto out; |
b481de9c ZY |
4400 | } |
4401 | ||
fee1247a | 4402 | if (iwl_is_rfkill(priv)) { |
b481de9c | 4403 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
4404 | ret = -EIO; |
4405 | goto out; | |
b481de9c ZY |
4406 | } |
4407 | ||
bb8c093b | 4408 | iwl4965_set_rate(priv); |
b481de9c ZY |
4409 | |
4410 | if (memcmp(&priv->active_rxon, | |
4411 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 4412 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4413 | else |
4414 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
4415 | ||
4416 | IWL_DEBUG_MAC80211("leave\n"); | |
4417 | ||
a0646470 ZY |
4418 | out: |
4419 | clear_bit(STATUS_CONF_PENDING, &priv->status); | |
5a66926a | 4420 | mutex_unlock(&priv->mutex); |
76bb77e0 | 4421 | return ret; |
b481de9c ZY |
4422 | } |
4423 | ||
c79dd5b5 | 4424 | static void iwl4965_config_ap(struct iwl_priv *priv) |
b481de9c | 4425 | { |
857485c0 | 4426 | int ret = 0; |
b481de9c | 4427 | |
d986bcd1 | 4428 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
4429 | return; |
4430 | ||
4431 | /* The following should be done only at AP bring up */ | |
4432 | if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) { | |
4433 | ||
4434 | /* RXON - unassoc (to set timing command) */ | |
4435 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4436 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4437 | |
4438 | /* RXON Timing */ | |
bb8c093b CH |
4439 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
4440 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 4441 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 4442 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 4443 | if (ret) |
b481de9c ZY |
4444 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
4445 | "Attempting to continue.\n"); | |
4446 | ||
c7de35cd | 4447 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
4448 | |
4449 | /* FIXME: what should be the assoc_id for AP? */ | |
4450 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
4451 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
4452 | priv->staging_rxon.flags |= | |
4453 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
4454 | else | |
4455 | priv->staging_rxon.flags &= | |
4456 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
4457 | ||
4458 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
4459 | if (priv->assoc_capability & | |
4460 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
4461 | priv->staging_rxon.flags |= | |
4462 | RXON_FLG_SHORT_SLOT_MSK; | |
4463 | else | |
4464 | priv->staging_rxon.flags &= | |
4465 | ~RXON_FLG_SHORT_SLOT_MSK; | |
4466 | ||
4467 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
4468 | priv->staging_rxon.flags &= | |
4469 | ~RXON_FLG_SHORT_SLOT_MSK; | |
4470 | } | |
4471 | /* restore RXON assoc */ | |
4472 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4473 | iwl4965_commit_rxon(priv); |
bb8c093b | 4474 | iwl4965_activate_qos(priv, 1); |
4f40e4d9 | 4475 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
e1493deb | 4476 | } |
bb8c093b | 4477 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
4478 | |
4479 | /* FIXME - we need to add code here to detect a totally new | |
4480 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
4481 | * clear sta table, add BCAST sta... */ | |
4482 | } | |
4483 | ||
32bfd35d JB |
4484 | static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, |
4485 | struct ieee80211_vif *vif, | |
b481de9c ZY |
4486 | struct ieee80211_if_conf *conf) |
4487 | { | |
c79dd5b5 | 4488 | struct iwl_priv *priv = hw->priv; |
0795af57 | 4489 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
4490 | unsigned long flags; |
4491 | int rc; | |
4492 | ||
4493 | if (conf == NULL) | |
4494 | return -EIO; | |
4495 | ||
b716bb91 EG |
4496 | if (priv->vif != vif) { |
4497 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
4498 | return 0; |
4499 | } | |
4500 | ||
b481de9c ZY |
4501 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && |
4502 | (!conf->beacon || !conf->ssid_len)) { | |
4503 | IWL_DEBUG_MAC80211 | |
4504 | ("Leaving in AP mode because HostAPD is not ready.\n"); | |
4505 | return 0; | |
4506 | } | |
4507 | ||
fee1247a | 4508 | if (!iwl_is_alive(priv)) |
5a66926a ZY |
4509 | return -EAGAIN; |
4510 | ||
b481de9c ZY |
4511 | mutex_lock(&priv->mutex); |
4512 | ||
b481de9c | 4513 | if (conf->bssid) |
0795af57 JP |
4514 | IWL_DEBUG_MAC80211("bssid: %s\n", |
4515 | print_mac(mac, conf->bssid)); | |
b481de9c | 4516 | |
4150c572 JB |
4517 | /* |
4518 | * very dubious code was here; the probe filtering flag is never set: | |
4519 | * | |
b481de9c ZY |
4520 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
4521 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 4522 | */ |
b481de9c ZY |
4523 | |
4524 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
4525 | if (!conf->bssid) { | |
4526 | conf->bssid = priv->mac_addr; | |
4527 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
0795af57 JP |
4528 | IWL_DEBUG_MAC80211("bssid was set to: %s\n", |
4529 | print_mac(mac, conf->bssid)); | |
b481de9c ZY |
4530 | } |
4531 | if (priv->ibss_beacon) | |
4532 | dev_kfree_skb(priv->ibss_beacon); | |
4533 | ||
4534 | priv->ibss_beacon = conf->beacon; | |
4535 | } | |
4536 | ||
fee1247a | 4537 | if (iwl_is_rfkill(priv)) |
fde3571f MA |
4538 | goto done; |
4539 | ||
b481de9c ZY |
4540 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
4541 | !is_multicast_ether_addr(conf->bssid)) { | |
4542 | /* If there is currently a HW scan going on in the background | |
4543 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 4544 | if (iwl4965_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
4545 | IWL_WARNING("Aborted scan still in progress " |
4546 | "after 100ms\n"); | |
4547 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
4548 | mutex_unlock(&priv->mutex); | |
4549 | return -EAGAIN; | |
4550 | } | |
4551 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
4552 | ||
4553 | /* TODO: Audit driver for usage of these members and see | |
4554 | * if mac80211 deprecates them (priv->bssid looks like it | |
4555 | * shouldn't be there, but I haven't scanned the IBSS code | |
4556 | * to verify) - jpk */ | |
4557 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
4558 | ||
4559 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 4560 | iwl4965_config_ap(priv); |
b481de9c | 4561 | else { |
bb8c093b | 4562 | rc = iwl4965_commit_rxon(priv); |
b481de9c | 4563 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc) |
4f40e4d9 | 4564 | iwl_rxon_add_station( |
b481de9c ZY |
4565 | priv, priv->active_rxon.bssid_addr, 1); |
4566 | } | |
4567 | ||
4568 | } else { | |
bb8c093b | 4569 | iwl4965_scan_cancel_timeout(priv, 100); |
b481de9c | 4570 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 4571 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4572 | } |
4573 | ||
fde3571f | 4574 | done: |
b481de9c ZY |
4575 | spin_lock_irqsave(&priv->lock, flags); |
4576 | if (!conf->ssid_len) | |
4577 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
4578 | else | |
4579 | memcpy(priv->essid, conf->ssid, conf->ssid_len); | |
4580 | ||
4581 | priv->essid_len = conf->ssid_len; | |
4582 | spin_unlock_irqrestore(&priv->lock, flags); | |
4583 | ||
4584 | IWL_DEBUG_MAC80211("leave\n"); | |
4585 | mutex_unlock(&priv->mutex); | |
4586 | ||
4587 | return 0; | |
4588 | } | |
4589 | ||
bb8c093b | 4590 | static void iwl4965_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
4591 | unsigned int changed_flags, |
4592 | unsigned int *total_flags, | |
4593 | int mc_count, struct dev_addr_list *mc_list) | |
4594 | { | |
4595 | /* | |
4596 | * XXX: dummy | |
bb8c093b | 4597 | * see also iwl4965_connection_init_rx_config |
4150c572 | 4598 | */ |
4419e39b AK |
4599 | struct iwl_priv *priv = hw->priv; |
4600 | int new_flags = 0; | |
4601 | if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
4602 | if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
4603 | IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n", | |
4604 | IEEE80211_IF_TYPE_MNTR, | |
4605 | changed_flags, *total_flags); | |
4606 | /* queue work 'cuz mac80211 is holding a lock which | |
4607 | * prevents us from issuing (synchronous) f/w cmds */ | |
4608 | queue_work(priv->workqueue, &priv->set_monitor); | |
4609 | new_flags &= FIF_PROMISC_IN_BSS | | |
4610 | FIF_OTHER_BSS | | |
4611 | FIF_ALLMULTI; | |
4612 | } | |
4613 | } | |
4614 | *total_flags = new_flags; | |
4150c572 JB |
4615 | } |
4616 | ||
bb8c093b | 4617 | static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
4618 | struct ieee80211_if_init_conf *conf) |
4619 | { | |
c79dd5b5 | 4620 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4621 | |
4622 | IWL_DEBUG_MAC80211("enter\n"); | |
4623 | ||
4624 | mutex_lock(&priv->mutex); | |
948c171c | 4625 | |
fee1247a | 4626 | if (iwl_is_ready_rf(priv)) { |
fde3571f MA |
4627 | iwl4965_scan_cancel_timeout(priv, 100); |
4628 | cancel_delayed_work(&priv->post_associate); | |
4629 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
4630 | iwl4965_commit_rxon(priv); | |
4631 | } | |
32bfd35d JB |
4632 | if (priv->vif == conf->vif) { |
4633 | priv->vif = NULL; | |
b481de9c ZY |
4634 | memset(priv->bssid, 0, ETH_ALEN); |
4635 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
4636 | priv->essid_len = 0; | |
4637 | } | |
4638 | mutex_unlock(&priv->mutex); | |
4639 | ||
4640 | IWL_DEBUG_MAC80211("leave\n"); | |
4641 | ||
4642 | } | |
471b3efd | 4643 | |
3109ece1 | 4644 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
471b3efd JB |
4645 | static void iwl4965_bss_info_changed(struct ieee80211_hw *hw, |
4646 | struct ieee80211_vif *vif, | |
4647 | struct ieee80211_bss_conf *bss_conf, | |
4648 | u32 changes) | |
220173b0 | 4649 | { |
c79dd5b5 | 4650 | struct iwl_priv *priv = hw->priv; |
220173b0 | 4651 | |
3109ece1 TW |
4652 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); |
4653 | ||
471b3efd | 4654 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
3109ece1 TW |
4655 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", |
4656 | bss_conf->use_short_preamble); | |
471b3efd | 4657 | if (bss_conf->use_short_preamble) |
220173b0 TW |
4658 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
4659 | else | |
4660 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
4661 | } | |
4662 | ||
471b3efd | 4663 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
3109ece1 | 4664 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); |
8318d78a | 4665 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
220173b0 TW |
4666 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
4667 | else | |
4668 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
4669 | } | |
4670 | ||
98952d5d | 4671 | if (changes & BSS_CHANGED_HT) { |
3109ece1 | 4672 | IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht); |
98952d5d | 4673 | iwl4965_ht_conf(priv, bss_conf); |
c7de35cd | 4674 | iwl_set_rxon_chain(priv); |
98952d5d TW |
4675 | } |
4676 | ||
471b3efd | 4677 | if (changes & BSS_CHANGED_ASSOC) { |
3109ece1 | 4678 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); |
508e32e1 RC |
4679 | /* This should never happen as this function should |
4680 | * never be called from interrupt context. */ | |
4681 | if (WARN_ON_ONCE(in_interrupt())) | |
4682 | return; | |
3109ece1 TW |
4683 | if (bss_conf->assoc) { |
4684 | priv->assoc_id = bss_conf->aid; | |
4685 | priv->beacon_int = bss_conf->beacon_int; | |
4686 | priv->timestamp = bss_conf->timestamp; | |
4687 | priv->assoc_capability = bss_conf->assoc_capability; | |
4688 | priv->next_scan_jiffies = jiffies + | |
4689 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
508e32e1 RC |
4690 | mutex_lock(&priv->mutex); |
4691 | iwl4965_post_associate(priv); | |
4692 | mutex_unlock(&priv->mutex); | |
3109ece1 TW |
4693 | } else { |
4694 | priv->assoc_id = 0; | |
4695 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
4696 | } | |
4697 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { | |
4698 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
7e8c519e | 4699 | iwl_send_rxon_assoc(priv); |
471b3efd JB |
4700 | } |
4701 | ||
220173b0 | 4702 | } |
b481de9c | 4703 | |
bb8c093b | 4704 | static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
4705 | { |
4706 | int rc = 0; | |
4707 | unsigned long flags; | |
c79dd5b5 | 4708 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4709 | |
4710 | IWL_DEBUG_MAC80211("enter\n"); | |
4711 | ||
052c4b9f | 4712 | mutex_lock(&priv->mutex); |
b481de9c ZY |
4713 | spin_lock_irqsave(&priv->lock, flags); |
4714 | ||
fee1247a | 4715 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4716 | rc = -EIO; |
4717 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
4718 | goto out_unlock; | |
4719 | } | |
4720 | ||
4721 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */ | |
4722 | rc = -EIO; | |
4723 | IWL_ERROR("ERROR: APs don't scan\n"); | |
4724 | goto out_unlock; | |
4725 | } | |
4726 | ||
7878a5a4 MA |
4727 | /* we don't schedule scan within next_scan_jiffies period */ |
4728 | if (priv->next_scan_jiffies && | |
4729 | time_after(priv->next_scan_jiffies, jiffies)) { | |
4730 | rc = -EAGAIN; | |
4731 | goto out_unlock; | |
4732 | } | |
b481de9c | 4733 | /* if we just finished scan ask for delay */ |
7878a5a4 MA |
4734 | if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies + |
4735 | IWL_DELAY_NEXT_SCAN, jiffies)) { | |
b481de9c ZY |
4736 | rc = -EAGAIN; |
4737 | goto out_unlock; | |
4738 | } | |
4739 | if (len) { | |
7878a5a4 | 4740 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
bb8c093b | 4741 | iwl4965_escape_essid(ssid, len), (int)len); |
b481de9c ZY |
4742 | |
4743 | priv->one_direct_scan = 1; | |
4744 | priv->direct_ssid_len = (u8) | |
4745 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
4746 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
948c171c MA |
4747 | } else |
4748 | priv->one_direct_scan = 0; | |
b481de9c | 4749 | |
bb8c093b | 4750 | rc = iwl4965_scan_initiate(priv); |
b481de9c ZY |
4751 | |
4752 | IWL_DEBUG_MAC80211("leave\n"); | |
4753 | ||
4754 | out_unlock: | |
4755 | spin_unlock_irqrestore(&priv->lock, flags); | |
052c4b9f | 4756 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
4757 | |
4758 | return rc; | |
4759 | } | |
4760 | ||
ab885f8c EG |
4761 | static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, |
4762 | struct ieee80211_key_conf *keyconf, const u8 *addr, | |
4763 | u32 iv32, u16 *phase1key) | |
4764 | { | |
4765 | struct iwl_priv *priv = hw->priv; | |
4766 | u8 sta_id = IWL_INVALID_STATION; | |
4767 | unsigned long flags; | |
4768 | __le16 key_flags = 0; | |
4769 | int i; | |
4770 | DECLARE_MAC_BUF(mac); | |
4771 | ||
4772 | IWL_DEBUG_MAC80211("enter\n"); | |
4773 | ||
947b13a7 | 4774 | sta_id = iwl_find_station(priv, addr); |
ab885f8c EG |
4775 | if (sta_id == IWL_INVALID_STATION) { |
4776 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
4777 | print_mac(mac, addr)); | |
4778 | return; | |
4779 | } | |
4780 | ||
4781 | iwl4965_scan_cancel_timeout(priv, 100); | |
4782 | ||
4783 | key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); | |
4784 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
4785 | key_flags &= ~STA_KEY_FLG_INVALID; | |
4786 | ||
5425e490 | 4787 | if (sta_id == priv->hw_params.bcast_sta_id) |
ab885f8c EG |
4788 | key_flags |= STA_KEY_MULTICAST_MSK; |
4789 | ||
4790 | spin_lock_irqsave(&priv->sta_lock, flags); | |
4791 | ||
ab885f8c EG |
4792 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
4793 | priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; | |
4794 | ||
4795 | for (i = 0; i < 5; i++) | |
4796 | priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = | |
4797 | cpu_to_le16(phase1key[i]); | |
4798 | ||
4799 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
4800 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
4801 | ||
133636de | 4802 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
ab885f8c EG |
4803 | |
4804 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
4805 | ||
4806 | IWL_DEBUG_MAC80211("leave\n"); | |
4807 | } | |
4808 | ||
bb8c093b | 4809 | static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
4810 | const u8 *local_addr, const u8 *addr, |
4811 | struct ieee80211_key_conf *key) | |
4812 | { | |
c79dd5b5 | 4813 | struct iwl_priv *priv = hw->priv; |
0795af57 | 4814 | DECLARE_MAC_BUF(mac); |
deb09c43 EG |
4815 | int ret = 0; |
4816 | u8 sta_id = IWL_INVALID_STATION; | |
6974e363 | 4817 | u8 is_default_wep_key = 0; |
b481de9c ZY |
4818 | |
4819 | IWL_DEBUG_MAC80211("enter\n"); | |
4820 | ||
099b40b7 | 4821 | if (priv->hw_params.sw_crypto) { |
b481de9c ZY |
4822 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
4823 | return -EOPNOTSUPP; | |
4824 | } | |
4825 | ||
4826 | if (is_zero_ether_addr(addr)) | |
4827 | /* only support pairwise keys */ | |
4828 | return -EOPNOTSUPP; | |
4829 | ||
947b13a7 | 4830 | sta_id = iwl_find_station(priv, addr); |
6974e363 EG |
4831 | if (sta_id == IWL_INVALID_STATION) { |
4832 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
4833 | print_mac(mac, addr)); | |
4834 | return -EINVAL; | |
b481de9c | 4835 | |
deb09c43 | 4836 | } |
b481de9c | 4837 | |
6974e363 | 4838 | mutex_lock(&priv->mutex); |
bb8c093b | 4839 | iwl4965_scan_cancel_timeout(priv, 100); |
6974e363 EG |
4840 | mutex_unlock(&priv->mutex); |
4841 | ||
4842 | /* If we are getting WEP group key and we didn't receive any key mapping | |
4843 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
4844 | * in 1X mode. | |
4845 | * In legacy wep mode, we use another host command to the uCode */ | |
5425e490 | 4846 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
6974e363 EG |
4847 | priv->iw_mode != IEEE80211_IF_TYPE_AP) { |
4848 | if (cmd == SET_KEY) | |
4849 | is_default_wep_key = !priv->key_mapping_key; | |
4850 | else | |
ccc038ab EG |
4851 | is_default_wep_key = |
4852 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 4853 | } |
052c4b9f | 4854 | |
b481de9c | 4855 | switch (cmd) { |
deb09c43 | 4856 | case SET_KEY: |
6974e363 EG |
4857 | if (is_default_wep_key) |
4858 | ret = iwl_set_default_wep_key(priv, key); | |
deb09c43 | 4859 | else |
7480513f | 4860 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
4861 | |
4862 | IWL_DEBUG_MAC80211("enable hwcrypto key\n"); | |
b481de9c ZY |
4863 | break; |
4864 | case DISABLE_KEY: | |
6974e363 EG |
4865 | if (is_default_wep_key) |
4866 | ret = iwl_remove_default_wep_key(priv, key); | |
deb09c43 | 4867 | else |
3ec47732 | 4868 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
4869 | |
4870 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); | |
b481de9c ZY |
4871 | break; |
4872 | default: | |
deb09c43 | 4873 | ret = -EINVAL; |
b481de9c ZY |
4874 | } |
4875 | ||
4876 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c | 4877 | |
deb09c43 | 4878 | return ret; |
b481de9c ZY |
4879 | } |
4880 | ||
e100bb64 | 4881 | static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
4882 | const struct ieee80211_tx_queue_params *params) |
4883 | { | |
c79dd5b5 | 4884 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4885 | unsigned long flags; |
4886 | int q; | |
b481de9c ZY |
4887 | |
4888 | IWL_DEBUG_MAC80211("enter\n"); | |
4889 | ||
fee1247a | 4890 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4891 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4892 | return -EIO; | |
4893 | } | |
4894 | ||
4895 | if (queue >= AC_NUM) { | |
4896 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
4897 | return 0; | |
4898 | } | |
4899 | ||
b481de9c ZY |
4900 | if (!priv->qos_data.qos_enable) { |
4901 | priv->qos_data.qos_active = 0; | |
4902 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
4903 | return 0; | |
4904 | } | |
4905 | q = AC_NUM - 1 - queue; | |
4906 | ||
4907 | spin_lock_irqsave(&priv->lock, flags); | |
4908 | ||
4909 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
4910 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
4911 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
4912 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 4913 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
4914 | |
4915 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
4916 | priv->qos_data.qos_active = 1; | |
4917 | ||
4918 | spin_unlock_irqrestore(&priv->lock, flags); | |
4919 | ||
4920 | mutex_lock(&priv->mutex); | |
4921 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 4922 | iwl4965_activate_qos(priv, 1); |
3109ece1 | 4923 | else if (priv->assoc_id && iwl_is_associated(priv)) |
bb8c093b | 4924 | iwl4965_activate_qos(priv, 0); |
b481de9c ZY |
4925 | |
4926 | mutex_unlock(&priv->mutex); | |
4927 | ||
b481de9c ZY |
4928 | IWL_DEBUG_MAC80211("leave\n"); |
4929 | return 0; | |
4930 | } | |
4931 | ||
bb8c093b | 4932 | static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
4933 | struct ieee80211_tx_queue_stats *stats) |
4934 | { | |
c79dd5b5 | 4935 | struct iwl_priv *priv = hw->priv; |
b481de9c | 4936 | int i, avail; |
16466903 | 4937 | struct iwl_tx_queue *txq; |
443cfd45 | 4938 | struct iwl_queue *q; |
b481de9c ZY |
4939 | unsigned long flags; |
4940 | ||
4941 | IWL_DEBUG_MAC80211("enter\n"); | |
4942 | ||
fee1247a | 4943 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4944 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4945 | return -EIO; | |
4946 | } | |
4947 | ||
4948 | spin_lock_irqsave(&priv->lock, flags); | |
4949 | ||
4950 | for (i = 0; i < AC_NUM; i++) { | |
4951 | txq = &priv->txq[i]; | |
4952 | q = &txq->q; | |
443cfd45 | 4953 | avail = iwl_queue_space(q); |
b481de9c | 4954 | |
57ffc589 JB |
4955 | stats[i].len = q->n_window - avail; |
4956 | stats[i].limit = q->n_window - q->high_mark; | |
4957 | stats[i].count = q->n_window; | |
b481de9c ZY |
4958 | |
4959 | } | |
4960 | spin_unlock_irqrestore(&priv->lock, flags); | |
4961 | ||
4962 | IWL_DEBUG_MAC80211("leave\n"); | |
4963 | ||
4964 | return 0; | |
4965 | } | |
4966 | ||
bb8c093b | 4967 | static int iwl4965_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
4968 | struct ieee80211_low_level_stats *stats) |
4969 | { | |
bf403db8 EK |
4970 | struct iwl_priv *priv = hw->priv; |
4971 | ||
4972 | priv = hw->priv; | |
b481de9c ZY |
4973 | IWL_DEBUG_MAC80211("enter\n"); |
4974 | IWL_DEBUG_MAC80211("leave\n"); | |
4975 | ||
4976 | return 0; | |
4977 | } | |
4978 | ||
bb8c093b | 4979 | static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw) |
b481de9c | 4980 | { |
bf403db8 EK |
4981 | struct iwl_priv *priv; |
4982 | ||
4983 | priv = hw->priv; | |
b481de9c ZY |
4984 | IWL_DEBUG_MAC80211("enter\n"); |
4985 | IWL_DEBUG_MAC80211("leave\n"); | |
4986 | ||
4987 | return 0; | |
4988 | } | |
4989 | ||
bb8c093b | 4990 | static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 4991 | { |
c79dd5b5 | 4992 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4993 | unsigned long flags; |
4994 | ||
4995 | mutex_lock(&priv->mutex); | |
4996 | IWL_DEBUG_MAC80211("enter\n"); | |
4997 | ||
4998 | priv->lq_mngr.lq_ready = 0; | |
c8b0e6e1 | 4999 | #ifdef CONFIG_IWL4965_HT |
b481de9c | 5000 | spin_lock_irqsave(&priv->lock, flags); |
fd105e79 | 5001 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); |
b481de9c | 5002 | spin_unlock_irqrestore(&priv->lock, flags); |
c8b0e6e1 | 5003 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 5004 | |
c7de35cd | 5005 | iwl_reset_qos(priv); |
b481de9c ZY |
5006 | |
5007 | cancel_delayed_work(&priv->post_associate); | |
5008 | ||
5009 | spin_lock_irqsave(&priv->lock, flags); | |
5010 | priv->assoc_id = 0; | |
5011 | priv->assoc_capability = 0; | |
b481de9c ZY |
5012 | priv->assoc_station_added = 0; |
5013 | ||
5014 | /* new association get rid of ibss beacon skb */ | |
5015 | if (priv->ibss_beacon) | |
5016 | dev_kfree_skb(priv->ibss_beacon); | |
5017 | ||
5018 | priv->ibss_beacon = NULL; | |
5019 | ||
5020 | priv->beacon_int = priv->hw->conf.beacon_int; | |
3109ece1 | 5021 | priv->timestamp = 0; |
b481de9c ZY |
5022 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA)) |
5023 | priv->beacon_int = 0; | |
5024 | ||
5025 | spin_unlock_irqrestore(&priv->lock, flags); | |
5026 | ||
fee1247a | 5027 | if (!iwl_is_ready_rf(priv)) { |
fde3571f MA |
5028 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
5029 | mutex_unlock(&priv->mutex); | |
5030 | return; | |
5031 | } | |
5032 | ||
052c4b9f | 5033 | /* we are restarting association process |
5034 | * clear RXON_FILTER_ASSOC_MSK bit | |
5035 | */ | |
5036 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
bb8c093b | 5037 | iwl4965_scan_cancel_timeout(priv, 100); |
052c4b9f | 5038 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 5039 | iwl4965_commit_rxon(priv); |
052c4b9f | 5040 | } |
5041 | ||
5da4b55f MA |
5042 | iwl_power_update_mode(priv, 0); |
5043 | ||
b481de9c ZY |
5044 | /* Per mac80211.h: This is only used in IBSS mode... */ |
5045 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
052c4b9f | 5046 | |
b481de9c ZY |
5047 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
5048 | mutex_unlock(&priv->mutex); | |
5049 | return; | |
5050 | } | |
5051 | ||
bb8c093b | 5052 | iwl4965_set_rate(priv); |
b481de9c ZY |
5053 | |
5054 | mutex_unlock(&priv->mutex); | |
5055 | ||
5056 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
5057 | } |
5058 | ||
e039fa4a | 5059 | static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 5060 | { |
c79dd5b5 | 5061 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
5062 | unsigned long flags; |
5063 | ||
5064 | mutex_lock(&priv->mutex); | |
5065 | IWL_DEBUG_MAC80211("enter\n"); | |
5066 | ||
fee1247a | 5067 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
5068 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
5069 | mutex_unlock(&priv->mutex); | |
5070 | return -EIO; | |
5071 | } | |
5072 | ||
5073 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
5074 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); | |
5075 | mutex_unlock(&priv->mutex); | |
5076 | return -EIO; | |
5077 | } | |
5078 | ||
5079 | spin_lock_irqsave(&priv->lock, flags); | |
5080 | ||
5081 | if (priv->ibss_beacon) | |
5082 | dev_kfree_skb(priv->ibss_beacon); | |
5083 | ||
5084 | priv->ibss_beacon = skb; | |
5085 | ||
5086 | priv->assoc_id = 0; | |
5087 | ||
5088 | IWL_DEBUG_MAC80211("leave\n"); | |
5089 | spin_unlock_irqrestore(&priv->lock, flags); | |
5090 | ||
c7de35cd | 5091 | iwl_reset_qos(priv); |
b481de9c ZY |
5092 | |
5093 | queue_work(priv->workqueue, &priv->post_associate.work); | |
5094 | ||
5095 | mutex_unlock(&priv->mutex); | |
5096 | ||
5097 | return 0; | |
5098 | } | |
5099 | ||
b481de9c ZY |
5100 | /***************************************************************************** |
5101 | * | |
5102 | * sysfs attributes | |
5103 | * | |
5104 | *****************************************************************************/ | |
5105 | ||
0a6857e7 | 5106 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
5107 | |
5108 | /* | |
5109 | * The following adds a new attribute to the sysfs representation | |
5110 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
5111 | * used for controlling the debug level. | |
5112 | * | |
5113 | * See the level definitions in iwl for details. | |
5114 | */ | |
5115 | ||
8cf769c6 EK |
5116 | static ssize_t show_debug_level(struct device *d, |
5117 | struct device_attribute *attr, char *buf) | |
b481de9c | 5118 | { |
8cf769c6 EK |
5119 | struct iwl_priv *priv = d->driver_data; |
5120 | ||
5121 | return sprintf(buf, "0x%08X\n", priv->debug_level); | |
b481de9c | 5122 | } |
8cf769c6 EK |
5123 | static ssize_t store_debug_level(struct device *d, |
5124 | struct device_attribute *attr, | |
b481de9c ZY |
5125 | const char *buf, size_t count) |
5126 | { | |
8cf769c6 | 5127 | struct iwl_priv *priv = d->driver_data; |
b481de9c ZY |
5128 | char *p = (char *)buf; |
5129 | u32 val; | |
5130 | ||
5131 | val = simple_strtoul(p, &p, 0); | |
5132 | if (p == buf) | |
5133 | printk(KERN_INFO DRV_NAME | |
5134 | ": %s is not in hex or decimal form.\n", buf); | |
5135 | else | |
8cf769c6 | 5136 | priv->debug_level = val; |
b481de9c ZY |
5137 | |
5138 | return strnlen(buf, count); | |
5139 | } | |
5140 | ||
8cf769c6 EK |
5141 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
5142 | show_debug_level, store_debug_level); | |
5143 | ||
b481de9c | 5144 | |
0a6857e7 | 5145 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 5146 | |
b481de9c | 5147 | |
bc6f59bc TW |
5148 | static ssize_t show_version(struct device *d, |
5149 | struct device_attribute *attr, char *buf) | |
5150 | { | |
5151 | struct iwl_priv *priv = d->driver_data; | |
5152 | struct iwl4965_alive_resp *palive = &priv->card_alive; | |
5153 | ||
5154 | if (palive->is_valid) | |
5155 | return sprintf(buf, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" | |
5156 | "fw type: 0x%01X 0x%01X\n", | |
5157 | palive->ucode_major, palive->ucode_minor, | |
5158 | palive->sw_rev[0], palive->sw_rev[1], | |
5159 | palive->ver_type, palive->ver_subtype); | |
5160 | ||
5161 | else | |
5162 | return sprintf(buf, "fw not loaded\n"); | |
5163 | } | |
5164 | ||
5165 | static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); | |
5166 | ||
b481de9c ZY |
5167 | static ssize_t show_temperature(struct device *d, |
5168 | struct device_attribute *attr, char *buf) | |
5169 | { | |
c79dd5b5 | 5170 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 5171 | |
fee1247a | 5172 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
5173 | return -EAGAIN; |
5174 | ||
bb8c093b | 5175 | return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv)); |
b481de9c ZY |
5176 | } |
5177 | ||
5178 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
5179 | ||
5180 | static ssize_t show_rs_window(struct device *d, | |
5181 | struct device_attribute *attr, | |
5182 | char *buf) | |
5183 | { | |
c79dd5b5 | 5184 | struct iwl_priv *priv = d->driver_data; |
bb8c093b | 5185 | return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID); |
b481de9c ZY |
5186 | } |
5187 | static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL); | |
5188 | ||
5189 | static ssize_t show_tx_power(struct device *d, | |
5190 | struct device_attribute *attr, char *buf) | |
5191 | { | |
c79dd5b5 | 5192 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
5193 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
5194 | } | |
5195 | ||
5196 | static ssize_t store_tx_power(struct device *d, | |
5197 | struct device_attribute *attr, | |
5198 | const char *buf, size_t count) | |
5199 | { | |
c79dd5b5 | 5200 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
5201 | char *p = (char *)buf; |
5202 | u32 val; | |
5203 | ||
5204 | val = simple_strtoul(p, &p, 10); | |
5205 | if (p == buf) | |
5206 | printk(KERN_INFO DRV_NAME | |
5207 | ": %s is not in decimal form.\n", buf); | |
5208 | else | |
bb8c093b | 5209 | iwl4965_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
5210 | |
5211 | return count; | |
5212 | } | |
5213 | ||
5214 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
5215 | ||
5216 | static ssize_t show_flags(struct device *d, | |
5217 | struct device_attribute *attr, char *buf) | |
5218 | { | |
c79dd5b5 | 5219 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
5220 | |
5221 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
5222 | } | |
5223 | ||
5224 | static ssize_t store_flags(struct device *d, | |
5225 | struct device_attribute *attr, | |
5226 | const char *buf, size_t count) | |
5227 | { | |
c79dd5b5 | 5228 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
5229 | u32 flags = simple_strtoul(buf, NULL, 0); |
5230 | ||
5231 | mutex_lock(&priv->mutex); | |
5232 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
5233 | /* Cancel any currently running scans... */ | |
bb8c093b | 5234 | if (iwl4965_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
5235 | IWL_WARNING("Could not cancel scan.\n"); |
5236 | else { | |
5237 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
5238 | flags); | |
5239 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 5240 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
5241 | } |
5242 | } | |
5243 | mutex_unlock(&priv->mutex); | |
5244 | ||
5245 | return count; | |
5246 | } | |
5247 | ||
5248 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
5249 | ||
5250 | static ssize_t show_filter_flags(struct device *d, | |
5251 | struct device_attribute *attr, char *buf) | |
5252 | { | |
c79dd5b5 | 5253 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
5254 | |
5255 | return sprintf(buf, "0x%04X\n", | |
5256 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
5257 | } | |
5258 | ||
5259 | static ssize_t store_filter_flags(struct device *d, | |
5260 | struct device_attribute *attr, | |
5261 | const char *buf, size_t count) | |
5262 | { | |
c79dd5b5 | 5263 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
5264 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
5265 | ||
5266 | mutex_lock(&priv->mutex); | |
5267 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
5268 | /* Cancel any currently running scans... */ | |
bb8c093b | 5269 | if (iwl4965_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
5270 | IWL_WARNING("Could not cancel scan.\n"); |
5271 | else { | |
5272 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
5273 | "0x%04X\n", filter_flags); | |
5274 | priv->staging_rxon.filter_flags = | |
5275 | cpu_to_le32(filter_flags); | |
bb8c093b | 5276 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
5277 | } |
5278 | } | |
5279 | mutex_unlock(&priv->mutex); | |
5280 | ||
5281 | return count; | |
5282 | } | |
5283 | ||
5284 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
5285 | store_filter_flags); | |
5286 | ||
c8b0e6e1 | 5287 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
5288 | |
5289 | static ssize_t show_measurement(struct device *d, | |
5290 | struct device_attribute *attr, char *buf) | |
5291 | { | |
c79dd5b5 | 5292 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 5293 | struct iwl4965_spectrum_notification measure_report; |
b481de9c ZY |
5294 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
5295 | u8 *data = (u8 *) & measure_report; | |
5296 | unsigned long flags; | |
5297 | ||
5298 | spin_lock_irqsave(&priv->lock, flags); | |
5299 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
5300 | spin_unlock_irqrestore(&priv->lock, flags); | |
5301 | return 0; | |
5302 | } | |
5303 | memcpy(&measure_report, &priv->measure_report, size); | |
5304 | priv->measurement_status = 0; | |
5305 | spin_unlock_irqrestore(&priv->lock, flags); | |
5306 | ||
5307 | while (size && (PAGE_SIZE - len)) { | |
5308 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
5309 | PAGE_SIZE - len, 1); | |
5310 | len = strlen(buf); | |
5311 | if (PAGE_SIZE - len) | |
5312 | buf[len++] = '\n'; | |
5313 | ||
5314 | ofs += 16; | |
5315 | size -= min(size, 16U); | |
5316 | } | |
5317 | ||
5318 | return len; | |
5319 | } | |
5320 | ||
5321 | static ssize_t store_measurement(struct device *d, | |
5322 | struct device_attribute *attr, | |
5323 | const char *buf, size_t count) | |
5324 | { | |
c79dd5b5 | 5325 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
5326 | struct ieee80211_measurement_params params = { |
5327 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
5328 | .start_time = cpu_to_le64(priv->last_tsf), | |
5329 | .duration = cpu_to_le16(1), | |
5330 | }; | |
5331 | u8 type = IWL_MEASURE_BASIC; | |
5332 | u8 buffer[32]; | |
5333 | u8 channel; | |
5334 | ||
5335 | if (count) { | |
5336 | char *p = buffer; | |
5337 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
5338 | channel = simple_strtoul(p, NULL, 0); | |
5339 | if (channel) | |
5340 | params.channel = channel; | |
5341 | ||
5342 | p = buffer; | |
5343 | while (*p && *p != ' ') | |
5344 | p++; | |
5345 | if (*p) | |
5346 | type = simple_strtoul(p + 1, NULL, 0); | |
5347 | } | |
5348 | ||
5349 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
5350 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 5351 | iwl4965_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
5352 | |
5353 | return count; | |
5354 | } | |
5355 | ||
5356 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
5357 | show_measurement, store_measurement); | |
c8b0e6e1 | 5358 | #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */ |
b481de9c ZY |
5359 | |
5360 | static ssize_t store_retry_rate(struct device *d, | |
5361 | struct device_attribute *attr, | |
5362 | const char *buf, size_t count) | |
5363 | { | |
c79dd5b5 | 5364 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
5365 | |
5366 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
5367 | if (priv->retry_rate <= 0) | |
5368 | priv->retry_rate = 1; | |
5369 | ||
5370 | return count; | |
5371 | } | |
5372 | ||
5373 | static ssize_t show_retry_rate(struct device *d, | |
5374 | struct device_attribute *attr, char *buf) | |
5375 | { | |
c79dd5b5 | 5376 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
5377 | return sprintf(buf, "%d", priv->retry_rate); |
5378 | } | |
5379 | ||
5380 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
5381 | store_retry_rate); | |
5382 | ||
5383 | static ssize_t store_power_level(struct device *d, | |
5384 | struct device_attribute *attr, | |
5385 | const char *buf, size_t count) | |
5386 | { | |
c79dd5b5 | 5387 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
5388 | int rc; |
5389 | int mode; | |
5390 | ||
5391 | mode = simple_strtoul(buf, NULL, 0); | |
5392 | mutex_lock(&priv->mutex); | |
5393 | ||
fee1247a | 5394 | if (!iwl_is_ready(priv)) { |
b481de9c ZY |
5395 | rc = -EAGAIN; |
5396 | goto out; | |
5397 | } | |
5398 | ||
5da4b55f MA |
5399 | rc = iwl_power_set_user_mode(priv, mode); |
5400 | if (rc) { | |
5401 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
5402 | goto out; | |
b481de9c | 5403 | } |
b481de9c ZY |
5404 | rc = count; |
5405 | ||
5406 | out: | |
5407 | mutex_unlock(&priv->mutex); | |
5408 | return rc; | |
5409 | } | |
5410 | ||
5411 | #define MAX_WX_STRING 80 | |
5412 | ||
5413 | /* Values are in microsecond */ | |
5414 | static const s32 timeout_duration[] = { | |
5415 | 350000, | |
5416 | 250000, | |
5417 | 75000, | |
5418 | 37000, | |
5419 | 25000, | |
5420 | }; | |
5421 | static const s32 period_duration[] = { | |
5422 | 400000, | |
5423 | 700000, | |
5424 | 1000000, | |
5425 | 1000000, | |
5426 | 1000000 | |
5427 | }; | |
5428 | ||
5429 | static ssize_t show_power_level(struct device *d, | |
5430 | struct device_attribute *attr, char *buf) | |
5431 | { | |
c79dd5b5 | 5432 | struct iwl_priv *priv = dev_get_drvdata(d); |
5da4b55f | 5433 | int level = priv->power_data.power_mode; |
b481de9c ZY |
5434 | char *p = buf; |
5435 | ||
5436 | p += sprintf(p, "%d ", level); | |
5437 | switch (level) { | |
5438 | case IWL_POWER_MODE_CAM: | |
5439 | case IWL_POWER_AC: | |
5440 | p += sprintf(p, "(AC)"); | |
5441 | break; | |
5442 | case IWL_POWER_BATTERY: | |
5443 | p += sprintf(p, "(BATTERY)"); | |
5444 | break; | |
5445 | default: | |
5446 | p += sprintf(p, | |
5447 | "(Timeout %dms, Period %dms)", | |
5448 | timeout_duration[level - 1] / 1000, | |
5449 | period_duration[level - 1] / 1000); | |
5450 | } | |
5da4b55f | 5451 | /* |
b481de9c ZY |
5452 | if (!(priv->power_mode & IWL_POWER_ENABLED)) |
5453 | p += sprintf(p, " OFF\n"); | |
5454 | else | |
5455 | p += sprintf(p, " \n"); | |
5da4b55f MA |
5456 | */ |
5457 | p += sprintf(p, " \n"); | |
b481de9c | 5458 | return (p - buf + 1); |
b481de9c ZY |
5459 | } |
5460 | ||
5461 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
5462 | store_power_level); | |
5463 | ||
5464 | static ssize_t show_channels(struct device *d, | |
5465 | struct device_attribute *attr, char *buf) | |
5466 | { | |
8318d78a JB |
5467 | /* all this shit doesn't belong into sysfs anyway */ |
5468 | return 0; | |
b481de9c ZY |
5469 | } |
5470 | ||
5471 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
5472 | ||
5473 | static ssize_t show_statistics(struct device *d, | |
5474 | struct device_attribute *attr, char *buf) | |
5475 | { | |
c79dd5b5 | 5476 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 5477 | u32 size = sizeof(struct iwl4965_notif_statistics); |
b481de9c ZY |
5478 | u32 len = 0, ofs = 0; |
5479 | u8 *data = (u8 *) & priv->statistics; | |
5480 | int rc = 0; | |
5481 | ||
fee1247a | 5482 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
5483 | return -EAGAIN; |
5484 | ||
5485 | mutex_lock(&priv->mutex); | |
49ea8596 | 5486 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
5487 | mutex_unlock(&priv->mutex); |
5488 | ||
5489 | if (rc) { | |
5490 | len = sprintf(buf, | |
5491 | "Error sending statistics request: 0x%08X\n", rc); | |
5492 | return len; | |
5493 | } | |
5494 | ||
5495 | while (size && (PAGE_SIZE - len)) { | |
5496 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
5497 | PAGE_SIZE - len, 1); | |
5498 | len = strlen(buf); | |
5499 | if (PAGE_SIZE - len) | |
5500 | buf[len++] = '\n'; | |
5501 | ||
5502 | ofs += 16; | |
5503 | size -= min(size, 16U); | |
5504 | } | |
5505 | ||
5506 | return len; | |
5507 | } | |
5508 | ||
5509 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
5510 | ||
b481de9c ZY |
5511 | static ssize_t show_status(struct device *d, |
5512 | struct device_attribute *attr, char *buf) | |
5513 | { | |
c79dd5b5 | 5514 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
fee1247a | 5515 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
5516 | return -EAGAIN; |
5517 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
5518 | } | |
5519 | ||
5520 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
5521 | ||
5522 | static ssize_t dump_error_log(struct device *d, | |
5523 | struct device_attribute *attr, | |
5524 | const char *buf, size_t count) | |
5525 | { | |
5526 | char *p = (char *)buf; | |
5527 | ||
5528 | if (p[0] == '1') | |
c79dd5b5 | 5529 | iwl4965_dump_nic_error_log((struct iwl_priv *)d->driver_data); |
b481de9c ZY |
5530 | |
5531 | return strnlen(buf, count); | |
5532 | } | |
5533 | ||
5534 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
5535 | ||
b481de9c ZY |
5536 | /***************************************************************************** |
5537 | * | |
5538 | * driver setup and teardown | |
5539 | * | |
5540 | *****************************************************************************/ | |
5541 | ||
c79dd5b5 | 5542 | static void iwl4965_setup_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
5543 | { |
5544 | priv->workqueue = create_workqueue(DRV_NAME); | |
5545 | ||
5546 | init_waitqueue_head(&priv->wait_command_queue); | |
5547 | ||
bb8c093b CH |
5548 | INIT_WORK(&priv->up, iwl4965_bg_up); |
5549 | INIT_WORK(&priv->restart, iwl4965_bg_restart); | |
5550 | INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish); | |
5551 | INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed); | |
5552 | INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan); | |
5553 | INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan); | |
5554 | INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill); | |
5555 | INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update); | |
4419e39b | 5556 | INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor); |
bb8c093b CH |
5557 | INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate); |
5558 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl4965_bg_init_alive_start); | |
5559 | INIT_DELAYED_WORK(&priv->alive_start, iwl4965_bg_alive_start); | |
5560 | INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check); | |
5561 | ||
5562 | iwl4965_hw_setup_deferred_work(priv); | |
b481de9c ZY |
5563 | |
5564 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 5565 | iwl4965_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
5566 | } |
5567 | ||
c79dd5b5 | 5568 | static void iwl4965_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 5569 | { |
bb8c093b | 5570 | iwl4965_hw_cancel_deferred_work(priv); |
b481de9c | 5571 | |
3ae6a054 | 5572 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
5573 | cancel_delayed_work(&priv->scan_check); |
5574 | cancel_delayed_work(&priv->alive_start); | |
5575 | cancel_delayed_work(&priv->post_associate); | |
5576 | cancel_work_sync(&priv->beacon_update); | |
5577 | } | |
5578 | ||
bb8c093b | 5579 | static struct attribute *iwl4965_sysfs_entries[] = { |
b481de9c ZY |
5580 | &dev_attr_channels.attr, |
5581 | &dev_attr_dump_errors.attr, | |
b481de9c ZY |
5582 | &dev_attr_flags.attr, |
5583 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 5584 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
5585 | &dev_attr_measurement.attr, |
5586 | #endif | |
5587 | &dev_attr_power_level.attr, | |
5588 | &dev_attr_retry_rate.attr, | |
b481de9c ZY |
5589 | &dev_attr_rs_window.attr, |
5590 | &dev_attr_statistics.attr, | |
5591 | &dev_attr_status.attr, | |
5592 | &dev_attr_temperature.attr, | |
b481de9c | 5593 | &dev_attr_tx_power.attr, |
8cf769c6 EK |
5594 | #ifdef CONFIG_IWLWIFI_DEBUG |
5595 | &dev_attr_debug_level.attr, | |
5596 | #endif | |
bc6f59bc | 5597 | &dev_attr_version.attr, |
b481de9c ZY |
5598 | |
5599 | NULL | |
5600 | }; | |
5601 | ||
bb8c093b | 5602 | static struct attribute_group iwl4965_attribute_group = { |
b481de9c | 5603 | .name = NULL, /* put in device directory */ |
bb8c093b | 5604 | .attrs = iwl4965_sysfs_entries, |
b481de9c ZY |
5605 | }; |
5606 | ||
bb8c093b CH |
5607 | static struct ieee80211_ops iwl4965_hw_ops = { |
5608 | .tx = iwl4965_mac_tx, | |
5609 | .start = iwl4965_mac_start, | |
5610 | .stop = iwl4965_mac_stop, | |
5611 | .add_interface = iwl4965_mac_add_interface, | |
5612 | .remove_interface = iwl4965_mac_remove_interface, | |
5613 | .config = iwl4965_mac_config, | |
5614 | .config_interface = iwl4965_mac_config_interface, | |
5615 | .configure_filter = iwl4965_configure_filter, | |
5616 | .set_key = iwl4965_mac_set_key, | |
ab885f8c | 5617 | .update_tkip_key = iwl4965_mac_update_tkip_key, |
bb8c093b CH |
5618 | .get_stats = iwl4965_mac_get_stats, |
5619 | .get_tx_stats = iwl4965_mac_get_tx_stats, | |
5620 | .conf_tx = iwl4965_mac_conf_tx, | |
5621 | .get_tsf = iwl4965_mac_get_tsf, | |
5622 | .reset_tsf = iwl4965_mac_reset_tsf, | |
5623 | .beacon_update = iwl4965_mac_beacon_update, | |
471b3efd | 5624 | .bss_info_changed = iwl4965_bss_info_changed, |
c8b0e6e1 | 5625 | #ifdef CONFIG_IWL4965_HT |
9ab46173 | 5626 | .ampdu_action = iwl4965_mac_ampdu_action, |
c8b0e6e1 | 5627 | #endif /* CONFIG_IWL4965_HT */ |
bb8c093b | 5628 | .hw_scan = iwl4965_mac_hw_scan |
b481de9c ZY |
5629 | }; |
5630 | ||
bb8c093b | 5631 | static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
5632 | { |
5633 | int err = 0; | |
c79dd5b5 | 5634 | struct iwl_priv *priv; |
b481de9c | 5635 | struct ieee80211_hw *hw; |
82b9a121 | 5636 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
0359facc | 5637 | unsigned long flags; |
5a66926a | 5638 | DECLARE_MAC_BUF(mac); |
b481de9c | 5639 | |
316c30d9 AK |
5640 | /************************ |
5641 | * 1. Allocating HW data | |
5642 | ************************/ | |
5643 | ||
6440adb5 CB |
5644 | /* Disabling hardware scan means that mac80211 will perform scans |
5645 | * "the hard way", rather than using device's scan. */ | |
1ea87396 | 5646 | if (cfg->mod_params->disable_hw_scan) { |
bf403db8 EK |
5647 | if (cfg->mod_params->debug & IWL_DL_INFO) |
5648 | dev_printk(KERN_DEBUG, &(pdev->dev), | |
5649 | "Disabling hw_scan\n"); | |
bb8c093b | 5650 | iwl4965_hw_ops.hw_scan = NULL; |
b481de9c ZY |
5651 | } |
5652 | ||
1d0a082d AK |
5653 | hw = iwl_alloc_all(cfg, &iwl4965_hw_ops); |
5654 | if (!hw) { | |
b481de9c ZY |
5655 | err = -ENOMEM; |
5656 | goto out; | |
5657 | } | |
1d0a082d AK |
5658 | priv = hw->priv; |
5659 | /* At this point both hw and priv are allocated. */ | |
5660 | ||
b481de9c ZY |
5661 | SET_IEEE80211_DEV(hw, &pdev->dev); |
5662 | ||
5663 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); | |
82b9a121 | 5664 | priv->cfg = cfg; |
b481de9c | 5665 | priv->pci_dev = pdev; |
316c30d9 | 5666 | |
0a6857e7 | 5667 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 5668 | priv->debug_level = priv->cfg->mod_params->debug; |
b481de9c ZY |
5669 | atomic_set(&priv->restrict_refcnt, 0); |
5670 | #endif | |
b481de9c | 5671 | |
316c30d9 AK |
5672 | /************************** |
5673 | * 2. Initializing PCI bus | |
5674 | **************************/ | |
5675 | if (pci_enable_device(pdev)) { | |
5676 | err = -ENODEV; | |
5677 | goto out_ieee80211_free_hw; | |
5678 | } | |
5679 | ||
5680 | pci_set_master(pdev); | |
5681 | ||
cc2a8ea8 | 5682 | err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
316c30d9 | 5683 | if (!err) |
cc2a8ea8 RR |
5684 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
5685 | if (err) { | |
5686 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
5687 | if (!err) | |
5688 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
5689 | /* both attempts failed: */ | |
316c30d9 | 5690 | if (err) { |
cc2a8ea8 RR |
5691 | printk(KERN_WARNING "%s: No suitable DMA available.\n", |
5692 | DRV_NAME); | |
316c30d9 | 5693 | goto out_pci_disable_device; |
cc2a8ea8 | 5694 | } |
316c30d9 AK |
5695 | } |
5696 | ||
5697 | err = pci_request_regions(pdev, DRV_NAME); | |
5698 | if (err) | |
5699 | goto out_pci_disable_device; | |
5700 | ||
5701 | pci_set_drvdata(pdev, priv); | |
5702 | ||
5703 | /* We disable the RETRY_TIMEOUT register (0x41) to keep | |
5704 | * PCI Tx retries from interfering with C3 CPU state */ | |
5705 | pci_write_config_byte(pdev, 0x41, 0x00); | |
5706 | ||
5707 | /*********************** | |
5708 | * 3. Read REV register | |
5709 | ***********************/ | |
5710 | priv->hw_base = pci_iomap(pdev, 0, 0); | |
5711 | if (!priv->hw_base) { | |
5712 | err = -ENODEV; | |
5713 | goto out_pci_release_regions; | |
5714 | } | |
5715 | ||
5716 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
5717 | (unsigned long long) pci_resource_len(pdev, 0)); | |
5718 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
5719 | ||
b661c819 | 5720 | iwl_hw_detect(priv); |
316c30d9 | 5721 | printk(KERN_INFO DRV_NAME |
b661c819 TW |
5722 | ": Detected Intel Wireless WiFi Link %s REV=0x%X\n", |
5723 | priv->cfg->name, priv->hw_rev); | |
316c30d9 | 5724 | |
91238714 TW |
5725 | /* amp init */ |
5726 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
316c30d9 | 5727 | if (err < 0) { |
91238714 | 5728 | IWL_DEBUG_INFO("Failed to init APMG\n"); |
316c30d9 AK |
5729 | goto out_iounmap; |
5730 | } | |
91238714 TW |
5731 | /***************** |
5732 | * 4. Read EEPROM | |
5733 | *****************/ | |
316c30d9 AK |
5734 | /* Read the EEPROM */ |
5735 | err = iwl_eeprom_init(priv); | |
5736 | if (err) { | |
5737 | IWL_ERROR("Unable to init EEPROM\n"); | |
5738 | goto out_iounmap; | |
5739 | } | |
8614f360 TW |
5740 | err = iwl_eeprom_check_version(priv); |
5741 | if (err) | |
5742 | goto out_iounmap; | |
5743 | ||
02883017 | 5744 | /* extract MAC Address */ |
316c30d9 AK |
5745 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
5746 | IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr)); | |
5747 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
5748 | ||
5749 | /************************ | |
5750 | * 5. Setup HW constants | |
5751 | ************************/ | |
5752 | /* Device-specific setup */ | |
5425e490 TW |
5753 | if (priv->cfg->ops->lib->set_hw_params(priv)) { |
5754 | IWL_ERROR("failed to set hw parameters\n"); | |
073d3f5f | 5755 | goto out_free_eeprom; |
316c30d9 AK |
5756 | } |
5757 | ||
5758 | /******************* | |
6ba87956 | 5759 | * 6. Setup priv |
316c30d9 | 5760 | *******************/ |
b481de9c | 5761 | |
6ba87956 | 5762 | err = iwl_init_drv(priv); |
bf85ea4f | 5763 | if (err) |
399f4900 | 5764 | goto out_free_eeprom; |
bf85ea4f | 5765 | /* At this point both hw and priv are initialized. */ |
316c30d9 AK |
5766 | |
5767 | /********************************** | |
5768 | * 7. Initialize module parameters | |
5769 | **********************************/ | |
5770 | ||
5771 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
1ea87396 | 5772 | if (priv->cfg->mod_params->disable) { |
316c30d9 AK |
5773 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
5774 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
5775 | } | |
5776 | ||
316c30d9 AK |
5777 | /******************** |
5778 | * 8. Setup services | |
5779 | ********************/ | |
0359facc | 5780 | spin_lock_irqsave(&priv->lock, flags); |
316c30d9 | 5781 | iwl4965_disable_interrupts(priv); |
0359facc | 5782 | spin_unlock_irqrestore(&priv->lock, flags); |
316c30d9 AK |
5783 | |
5784 | err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
5785 | if (err) { | |
5786 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
6ba87956 | 5787 | goto out_uninit_drv; |
316c30d9 AK |
5788 | } |
5789 | ||
316c30d9 AK |
5790 | |
5791 | iwl4965_setup_deferred_work(priv); | |
5792 | iwl4965_setup_rx_handlers(priv); | |
5793 | ||
5794 | /******************** | |
5795 | * 9. Conclude | |
5796 | ********************/ | |
5a66926a ZY |
5797 | pci_save_state(pdev); |
5798 | pci_disable_device(pdev); | |
b481de9c | 5799 | |
6ba87956 TW |
5800 | /********************************** |
5801 | * 10. Setup and register mac80211 | |
5802 | **********************************/ | |
5803 | ||
5804 | err = iwl_setup_mac(priv); | |
5805 | if (err) | |
5806 | goto out_remove_sysfs; | |
5807 | ||
5808 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
5809 | if (err) | |
5810 | IWL_ERROR("failed to create debugfs files\n"); | |
5811 | ||
c8381fdc MA |
5812 | /* notify iwlcore to init */ |
5813 | iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT); | |
b481de9c ZY |
5814 | return 0; |
5815 | ||
316c30d9 AK |
5816 | out_remove_sysfs: |
5817 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
6ba87956 TW |
5818 | out_uninit_drv: |
5819 | iwl_uninit_drv(priv); | |
073d3f5f TW |
5820 | out_free_eeprom: |
5821 | iwl_eeprom_free(priv); | |
b481de9c ZY |
5822 | out_iounmap: |
5823 | pci_iounmap(pdev, priv->hw_base); | |
5824 | out_pci_release_regions: | |
5825 | pci_release_regions(pdev); | |
316c30d9 | 5826 | pci_set_drvdata(pdev, NULL); |
b481de9c ZY |
5827 | out_pci_disable_device: |
5828 | pci_disable_device(pdev); | |
b481de9c ZY |
5829 | out_ieee80211_free_hw: |
5830 | ieee80211_free_hw(priv->hw); | |
5831 | out: | |
5832 | return err; | |
5833 | } | |
5834 | ||
c83dbf68 | 5835 | static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) |
b481de9c | 5836 | { |
c79dd5b5 | 5837 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c ZY |
5838 | struct list_head *p, *q; |
5839 | int i; | |
0359facc | 5840 | unsigned long flags; |
b481de9c ZY |
5841 | |
5842 | if (!priv) | |
5843 | return; | |
5844 | ||
5845 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
5846 | ||
c4f55232 RR |
5847 | if (priv->mac80211_registered) { |
5848 | ieee80211_unregister_hw(priv->hw); | |
5849 | priv->mac80211_registered = 0; | |
5850 | } | |
5851 | ||
b481de9c | 5852 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 5853 | |
bb8c093b | 5854 | iwl4965_down(priv); |
b481de9c | 5855 | |
0359facc MA |
5856 | /* make sure we flush any pending irq or |
5857 | * tasklet for the driver | |
5858 | */ | |
5859 | spin_lock_irqsave(&priv->lock, flags); | |
5860 | iwl4965_disable_interrupts(priv); | |
5861 | spin_unlock_irqrestore(&priv->lock, flags); | |
5862 | ||
5863 | iwl_synchronize_irq(priv); | |
5864 | ||
b481de9c ZY |
5865 | /* Free MAC hash list for ADHOC */ |
5866 | for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) { | |
5867 | list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { | |
5868 | list_del(p); | |
bb8c093b | 5869 | kfree(list_entry(p, struct iwl4965_ibss_seq, list)); |
b481de9c ZY |
5870 | } |
5871 | } | |
5872 | ||
c8381fdc | 5873 | iwlcore_low_level_notify(priv, IWLCORE_REMOVE_EVT); |
712b6cf5 | 5874 | iwl_dbgfs_unregister(priv); |
bb8c093b | 5875 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); |
b481de9c | 5876 | |
bb8c093b | 5877 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
5878 | |
5879 | if (priv->rxq.bd) | |
a55360e4 | 5880 | iwl_rx_queue_free(priv, &priv->rxq); |
1053d35f | 5881 | iwl_hw_txq_ctx_free(priv); |
b481de9c | 5882 | |
bf85ea4f | 5883 | iwlcore_clear_stations_table(priv); |
073d3f5f | 5884 | iwl_eeprom_free(priv); |
b481de9c | 5885 | |
b481de9c | 5886 | |
948c171c MA |
5887 | /*netif_stop_queue(dev); */ |
5888 | flush_workqueue(priv->workqueue); | |
5889 | ||
bb8c093b | 5890 | /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes |
b481de9c ZY |
5891 | * priv->workqueue... so we can't take down the workqueue |
5892 | * until now... */ | |
5893 | destroy_workqueue(priv->workqueue); | |
5894 | priv->workqueue = NULL; | |
5895 | ||
b481de9c ZY |
5896 | pci_iounmap(pdev, priv->hw_base); |
5897 | pci_release_regions(pdev); | |
5898 | pci_disable_device(pdev); | |
5899 | pci_set_drvdata(pdev, NULL); | |
5900 | ||
6ba87956 | 5901 | iwl_uninit_drv(priv); |
b481de9c ZY |
5902 | |
5903 | if (priv->ibss_beacon) | |
5904 | dev_kfree_skb(priv->ibss_beacon); | |
5905 | ||
5906 | ieee80211_free_hw(priv->hw); | |
5907 | } | |
5908 | ||
5909 | #ifdef CONFIG_PM | |
5910 | ||
bb8c093b | 5911 | static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 5912 | { |
c79dd5b5 | 5913 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 5914 | |
e655b9f0 ZY |
5915 | if (priv->is_open) { |
5916 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
5917 | iwl4965_mac_stop(priv->hw); | |
5918 | priv->is_open = 1; | |
5919 | } | |
b481de9c | 5920 | |
b481de9c ZY |
5921 | pci_set_power_state(pdev, PCI_D3hot); |
5922 | ||
b481de9c ZY |
5923 | return 0; |
5924 | } | |
5925 | ||
bb8c093b | 5926 | static int iwl4965_pci_resume(struct pci_dev *pdev) |
b481de9c | 5927 | { |
c79dd5b5 | 5928 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 5929 | |
b481de9c | 5930 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 5931 | |
e655b9f0 ZY |
5932 | if (priv->is_open) |
5933 | iwl4965_mac_start(priv->hw); | |
b481de9c | 5934 | |
e655b9f0 | 5935 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
5936 | return 0; |
5937 | } | |
5938 | ||
5939 | #endif /* CONFIG_PM */ | |
5940 | ||
5941 | /***************************************************************************** | |
5942 | * | |
5943 | * driver and module entry point | |
5944 | * | |
5945 | *****************************************************************************/ | |
5946 | ||
fed9017e RR |
5947 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
5948 | static struct pci_device_id iwl_hw_card_ids[] = { | |
5949 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
5950 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
5a6a256e TW |
5951 | #ifdef CONFIG_IWL5000 |
5952 | {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, | |
5953 | {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, | |
5954 | {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)}, | |
5955 | #endif /* CONFIG_IWL5000 */ | |
fed9017e RR |
5956 | {0} |
5957 | }; | |
5958 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); | |
5959 | ||
5960 | static struct pci_driver iwl_driver = { | |
b481de9c | 5961 | .name = DRV_NAME, |
fed9017e | 5962 | .id_table = iwl_hw_card_ids, |
bb8c093b CH |
5963 | .probe = iwl4965_pci_probe, |
5964 | .remove = __devexit_p(iwl4965_pci_remove), | |
b481de9c | 5965 | #ifdef CONFIG_PM |
bb8c093b CH |
5966 | .suspend = iwl4965_pci_suspend, |
5967 | .resume = iwl4965_pci_resume, | |
b481de9c ZY |
5968 | #endif |
5969 | }; | |
5970 | ||
bb8c093b | 5971 | static int __init iwl4965_init(void) |
b481de9c ZY |
5972 | { |
5973 | ||
5974 | int ret; | |
5975 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
5976 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
5977 | |
5978 | ret = iwl4965_rate_control_register(); | |
5979 | if (ret) { | |
5980 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
5981 | return ret; | |
5982 | } | |
5983 | ||
fed9017e | 5984 | ret = pci_register_driver(&iwl_driver); |
b481de9c ZY |
5985 | if (ret) { |
5986 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 5987 | goto error_register; |
b481de9c | 5988 | } |
b481de9c ZY |
5989 | |
5990 | return ret; | |
897e1cf2 | 5991 | |
897e1cf2 RC |
5992 | error_register: |
5993 | iwl4965_rate_control_unregister(); | |
5994 | return ret; | |
b481de9c ZY |
5995 | } |
5996 | ||
bb8c093b | 5997 | static void __exit iwl4965_exit(void) |
b481de9c | 5998 | { |
fed9017e | 5999 | pci_unregister_driver(&iwl_driver); |
897e1cf2 | 6000 | iwl4965_rate_control_unregister(); |
b481de9c ZY |
6001 | } |
6002 | ||
bb8c093b CH |
6003 | module_exit(iwl4965_exit); |
6004 | module_init(iwl4965_init); |