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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
b481de9c ZY |
32 | #include <linux/init.h> |
33 | #include <linux/pci.h> | |
34 | #include <linux/dma-mapping.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/wireless.h> | |
39 | #include <linux/firmware.h> | |
b481de9c ZY |
40 | #include <linux/etherdevice.h> |
41 | #include <linux/if_arp.h> | |
42 | ||
b481de9c ZY |
43 | #include <net/mac80211.h> |
44 | ||
45 | #include <asm/div64.h> | |
46 | ||
6bc913bd | 47 | #include "iwl-eeprom.h" |
3e0d4cb1 | 48 | #include "iwl-dev.h" |
fee1247a | 49 | #include "iwl-core.h" |
3395f6e9 | 50 | #include "iwl-io.h" |
b481de9c | 51 | #include "iwl-helpers.h" |
6974e363 | 52 | #include "iwl-sta.h" |
f0832f13 | 53 | #include "iwl-calib.h" |
b481de9c | 54 | |
416e1438 | 55 | |
b481de9c ZY |
56 | /****************************************************************************** |
57 | * | |
58 | * module boiler plate | |
59 | * | |
60 | ******************************************************************************/ | |
61 | ||
b481de9c ZY |
62 | /* |
63 | * module name, copyright, version, etc. | |
64 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
65 | */ | |
66 | ||
d783b061 | 67 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
b481de9c | 68 | |
0a6857e7 | 69 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
70 | #define VD "d" |
71 | #else | |
72 | #define VD | |
73 | #endif | |
74 | ||
4fc22b21 | 75 | #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT |
b481de9c ZY |
76 | #define VS "s" |
77 | #else | |
78 | #define VS | |
79 | #endif | |
80 | ||
df48c323 | 81 | #define DRV_VERSION IWLWIFI_VERSION VD VS |
b481de9c | 82 | |
b481de9c ZY |
83 | |
84 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
85 | MODULE_VERSION(DRV_VERSION); | |
86 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
87 | MODULE_LICENSE("GPL"); | |
4fc22b21 | 88 | MODULE_ALIAS("iwl4965"); |
b481de9c | 89 | |
b481de9c | 90 | /*************** STATION TABLE MANAGEMENT **** |
9fbab516 | 91 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
92 | * the functionality provided here |
93 | */ | |
94 | ||
95 | /**************************************************************/ | |
96 | ||
b481de9c | 97 | |
b481de9c | 98 | |
5b9f8cd3 | 99 | static void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
deb09c43 | 100 | { |
c1adf9fb | 101 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
deb09c43 EG |
102 | |
103 | if (hw_decrypt) | |
104 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
105 | else | |
106 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
107 | ||
108 | } | |
109 | ||
b481de9c | 110 | /** |
5b9f8cd3 | 111 | * iwl_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
112 | * |
113 | * NOTE: This is really only useful during development and can eventually | |
114 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
115 | * making changes | |
116 | */ | |
5b9f8cd3 | 117 | static int iwl_check_rxon_cmd(struct iwl_rxon_cmd *rxon) |
b481de9c ZY |
118 | { |
119 | int error = 0; | |
120 | int counter = 1; | |
121 | ||
122 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
123 | error |= le32_to_cpu(rxon->flags & | |
124 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
125 | RXON_FLG_RADAR_DETECT_MSK)); | |
126 | if (error) | |
127 | IWL_WARNING("check 24G fields %d | %d\n", | |
128 | counter++, error); | |
129 | } else { | |
130 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
131 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
132 | if (error) | |
133 | IWL_WARNING("check 52 fields %d | %d\n", | |
134 | counter++, error); | |
135 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
136 | if (error) | |
137 | IWL_WARNING("check 52 CCK %d | %d\n", | |
138 | counter++, error); | |
139 | } | |
140 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
141 | if (error) | |
142 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
143 | ||
144 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
145 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
146 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
147 | if (error) | |
148 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
149 | ||
150 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
151 | if (error) | |
152 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
153 | ||
154 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
155 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
156 | if (error) | |
157 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
158 | counter++, error); | |
159 | ||
160 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
161 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
162 | if (error) | |
163 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
164 | counter++, error); | |
165 | ||
166 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
167 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
168 | if (error) | |
169 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
170 | counter++, error); | |
171 | ||
172 | if (error) | |
173 | IWL_WARNING("Tuning to channel %d\n", | |
174 | le16_to_cpu(rxon->channel)); | |
175 | ||
176 | if (error) { | |
5b9f8cd3 | 177 | IWL_ERROR("Not a valid iwl_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
178 | return -1; |
179 | } | |
180 | return 0; | |
181 | } | |
182 | ||
183 | /** | |
54559703 | 184 | * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 185 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 186 | * |
9fbab516 BC |
187 | * If the RXON structure is changing enough to require a new tune, |
188 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
189 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 190 | */ |
54559703 | 191 | static int iwl_full_rxon_required(struct iwl_priv *priv) |
b481de9c ZY |
192 | { |
193 | ||
194 | /* These items are only settable from the full RXON command */ | |
5d1e2325 | 195 | if (!(iwl_is_associated(priv)) || |
b481de9c ZY |
196 | compare_ether_addr(priv->staging_rxon.bssid_addr, |
197 | priv->active_rxon.bssid_addr) || | |
198 | compare_ether_addr(priv->staging_rxon.node_addr, | |
199 | priv->active_rxon.node_addr) || | |
200 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
201 | priv->active_rxon.wlap_bssid_addr) || | |
202 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
203 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
204 | (priv->staging_rxon.air_propagation != | |
205 | priv->active_rxon.air_propagation) || | |
206 | (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != | |
207 | priv->active_rxon.ofdm_ht_single_stream_basic_rates) || | |
208 | (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != | |
209 | priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || | |
b481de9c ZY |
210 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) |
211 | return 1; | |
212 | ||
213 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
214 | * be updated with the RXON_ASSOC command -- however only some | |
215 | * flag transitions are allowed using RXON_ASSOC */ | |
216 | ||
217 | /* Check if we are not switching bands */ | |
218 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
219 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
220 | return 1; | |
221 | ||
222 | /* Check if we are switching association toggle */ | |
223 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
224 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
225 | return 1; | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
b481de9c | 230 | /** |
5b9f8cd3 | 231 | * iwl_commit_rxon - commit staging_rxon to hardware |
b481de9c | 232 | * |
01ebd063 | 233 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
234 | * the active_rxon structure is updated with the new data. This |
235 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
236 | * a HW tune is required based on the RXON structure changes. | |
237 | */ | |
5b9f8cd3 | 238 | static int iwl_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
239 | { |
240 | /* cast away the const for active_rxon in this function */ | |
c1adf9fb | 241 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
43d59b32 EG |
242 | int ret; |
243 | bool new_assoc = | |
244 | !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK); | |
b481de9c | 245 | |
fee1247a | 246 | if (!iwl_is_alive(priv)) |
43d59b32 | 247 | return -EBUSY; |
b481de9c ZY |
248 | |
249 | /* always get timestamp with Rx frame */ | |
250 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
a326a5d0 EG |
251 | /* allow CTS-to-self if possible. this is relevant only for |
252 | * 5000, but will not damage 4965 */ | |
253 | priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN; | |
b481de9c | 254 | |
5b9f8cd3 | 255 | ret = iwl_check_rxon_cmd(&priv->staging_rxon); |
43d59b32 | 256 | if (ret) { |
b481de9c ZY |
257 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); |
258 | return -EINVAL; | |
259 | } | |
260 | ||
261 | /* If we don't need to send a full RXON, we can use | |
5b9f8cd3 | 262 | * iwl_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 263 | * and other flags for the current radio configuration. */ |
54559703 | 264 | if (!iwl_full_rxon_required(priv)) { |
43d59b32 EG |
265 | ret = iwl_send_rxon_assoc(priv); |
266 | if (ret) { | |
267 | IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret); | |
268 | return ret; | |
b481de9c ZY |
269 | } |
270 | ||
271 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
272 | return 0; |
273 | } | |
274 | ||
275 | /* station table will be cleared */ | |
276 | priv->assoc_station_added = 0; | |
277 | ||
b481de9c ZY |
278 | /* If we are currently associated and the new config requires |
279 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
280 | * we must clear the associated from the active configuration | |
281 | * before we apply the new config */ | |
43d59b32 | 282 | if (iwl_is_associated(priv) && new_assoc) { |
b481de9c ZY |
283 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); |
284 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
285 | ||
43d59b32 | 286 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 287 | sizeof(struct iwl_rxon_cmd), |
b481de9c ZY |
288 | &priv->active_rxon); |
289 | ||
290 | /* If the mask clearing failed then we set | |
291 | * active_rxon back to what it was previously */ | |
43d59b32 | 292 | if (ret) { |
b481de9c | 293 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; |
43d59b32 EG |
294 | IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret); |
295 | return ret; | |
b481de9c | 296 | } |
b481de9c ZY |
297 | } |
298 | ||
299 | IWL_DEBUG_INFO("Sending RXON\n" | |
300 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
301 | "* channel = %d\n" | |
e174961c | 302 | "* bssid = %pM\n", |
43d59b32 | 303 | (new_assoc ? "" : "out"), |
b481de9c | 304 | le16_to_cpu(priv->staging_rxon.channel), |
e174961c | 305 | priv->staging_rxon.bssid_addr); |
b481de9c | 306 | |
5b9f8cd3 | 307 | iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
43d59b32 EG |
308 | |
309 | /* Apply the new configuration | |
310 | * RXON unassoc clears the station table in uCode, send it before | |
311 | * we add the bcast station. If assoc bit is set, we will send RXON | |
312 | * after having added the bcast and bssid station. | |
313 | */ | |
314 | if (!new_assoc) { | |
315 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
c1adf9fb | 316 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
43d59b32 EG |
317 | if (ret) { |
318 | IWL_ERROR("Error setting new RXON (%d)\n", ret); | |
319 | return ret; | |
320 | } | |
321 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
322 | } |
323 | ||
37deb2a0 | 324 | iwl_clear_stations_table(priv); |
556f8db7 | 325 | |
b481de9c ZY |
326 | if (!priv->error_recovering) |
327 | priv->start_calib = 0; | |
328 | ||
b481de9c | 329 | /* Add the broadcast address so we can send broadcast frames */ |
4f40e4d9 | 330 | if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == |
43d59b32 | 331 | IWL_INVALID_STATION) { |
b481de9c ZY |
332 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); |
333 | return -EIO; | |
334 | } | |
335 | ||
336 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
337 | * add the IWL_AP_ID to the station rate table */ | |
9185159d | 338 | if (new_assoc) { |
05c914fe | 339 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
9185159d TW |
340 | ret = iwl_rxon_add_station(priv, |
341 | priv->active_rxon.bssid_addr, 1); | |
342 | if (ret == IWL_INVALID_STATION) { | |
343 | IWL_ERROR("Error adding AP address for TX.\n"); | |
344 | return -EIO; | |
345 | } | |
346 | priv->assoc_station_added = 1; | |
347 | if (priv->default_wep_key && | |
348 | iwl_send_static_wepkey_cmd(priv, 0)) | |
349 | IWL_ERROR("Could not send WEP static key.\n"); | |
b481de9c | 350 | } |
43d59b32 EG |
351 | |
352 | /* Apply the new configuration | |
353 | * RXON assoc doesn't clear the station table in uCode, | |
354 | */ | |
355 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
356 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); | |
357 | if (ret) { | |
358 | IWL_ERROR("Error setting new RXON (%d)\n", ret); | |
359 | return ret; | |
360 | } | |
361 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
362 | } |
363 | ||
36da7d70 ZY |
364 | iwl_init_sensitivity(priv); |
365 | ||
366 | /* If we issue a new RXON command which required a tune then we must | |
367 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
368 | ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); | |
369 | if (ret) { | |
370 | IWL_ERROR("Error sending TX power (%d)\n", ret); | |
371 | return ret; | |
372 | } | |
373 | ||
b481de9c ZY |
374 | return 0; |
375 | } | |
376 | ||
5b9f8cd3 | 377 | void iwl_update_chain_flags(struct iwl_priv *priv) |
5da4b55f MA |
378 | { |
379 | ||
c7de35cd | 380 | iwl_set_rxon_chain(priv); |
5b9f8cd3 | 381 | iwl_commit_rxon(priv); |
5da4b55f MA |
382 | } |
383 | ||
5b9f8cd3 | 384 | static int iwl_send_bt_config(struct iwl_priv *priv) |
b481de9c | 385 | { |
bb8c093b | 386 | struct iwl4965_bt_cmd bt_cmd = { |
b481de9c ZY |
387 | .flags = 3, |
388 | .lead_time = 0xAA, | |
389 | .max_kill = 1, | |
390 | .kill_ack_mask = 0, | |
391 | .kill_cts_mask = 0, | |
392 | }; | |
393 | ||
857485c0 | 394 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
bb8c093b | 395 | sizeof(struct iwl4965_bt_cmd), &bt_cmd); |
b481de9c ZY |
396 | } |
397 | ||
fcab423d | 398 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
399 | { |
400 | struct list_head *element; | |
401 | ||
402 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
403 | priv->frames_count); | |
404 | ||
405 | while (!list_empty(&priv->free_frames)) { | |
406 | element = priv->free_frames.next; | |
407 | list_del(element); | |
fcab423d | 408 | kfree(list_entry(element, struct iwl_frame, list)); |
b481de9c ZY |
409 | priv->frames_count--; |
410 | } | |
411 | ||
412 | if (priv->frames_count) { | |
413 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
414 | priv->frames_count); | |
415 | priv->frames_count = 0; | |
416 | } | |
417 | } | |
418 | ||
fcab423d | 419 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
b481de9c | 420 | { |
fcab423d | 421 | struct iwl_frame *frame; |
b481de9c ZY |
422 | struct list_head *element; |
423 | if (list_empty(&priv->free_frames)) { | |
424 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
425 | if (!frame) { | |
426 | IWL_ERROR("Could not allocate frame!\n"); | |
427 | return NULL; | |
428 | } | |
429 | ||
430 | priv->frames_count++; | |
431 | return frame; | |
432 | } | |
433 | ||
434 | element = priv->free_frames.next; | |
435 | list_del(element); | |
fcab423d | 436 | return list_entry(element, struct iwl_frame, list); |
b481de9c ZY |
437 | } |
438 | ||
fcab423d | 439 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
b481de9c ZY |
440 | { |
441 | memset(frame, 0, sizeof(*frame)); | |
442 | list_add(&frame->list, &priv->free_frames); | |
443 | } | |
444 | ||
4bf64efd TW |
445 | static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv, |
446 | struct ieee80211_hdr *hdr, | |
447 | const u8 *dest, int left) | |
b481de9c | 448 | { |
3109ece1 | 449 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
450 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
451 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
452 | return 0; |
453 | ||
454 | if (priv->ibss_beacon->len > left) | |
455 | return 0; | |
456 | ||
457 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
458 | ||
459 | return priv->ibss_beacon->len; | |
460 | } | |
461 | ||
5b9f8cd3 | 462 | static u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv) |
b481de9c | 463 | { |
39e88504 GC |
464 | int i; |
465 | int rate_mask; | |
466 | ||
467 | /* Set rate mask*/ | |
468 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
dbce56a4 | 469 | rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK; |
39e88504 | 470 | else |
dbce56a4 | 471 | rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK; |
b481de9c | 472 | |
39e88504 | 473 | /* Find lowest valid rate */ |
b481de9c | 474 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; |
1826dcc0 | 475 | i = iwl_rates[i].next_ieee) { |
b481de9c | 476 | if (rate_mask & (1 << i)) |
1826dcc0 | 477 | return iwl_rates[i].plcp; |
b481de9c ZY |
478 | } |
479 | ||
39e88504 GC |
480 | /* No valid rate was found. Assign the lowest one */ |
481 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
482 | return IWL_RATE_1M_PLCP; | |
483 | else | |
484 | return IWL_RATE_6M_PLCP; | |
b481de9c ZY |
485 | } |
486 | ||
5b9f8cd3 | 487 | static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, |
4bf64efd TW |
488 | struct iwl_frame *frame, u8 rate) |
489 | { | |
490 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; | |
491 | unsigned int frame_size; | |
492 | ||
493 | tx_beacon_cmd = &frame->u.beacon; | |
494 | memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); | |
495 | ||
496 | tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; | |
497 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
498 | ||
499 | frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame, | |
500 | iwl_bcast_addr, | |
501 | sizeof(frame->u) - sizeof(*tx_beacon_cmd)); | |
502 | ||
503 | BUG_ON(frame_size > MAX_MPDU_SIZE); | |
504 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); | |
505 | ||
506 | if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP)) | |
507 | tx_beacon_cmd->tx.rate_n_flags = | |
508 | iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK); | |
509 | else | |
510 | tx_beacon_cmd->tx.rate_n_flags = | |
511 | iwl_hw_set_rate_n_flags(rate, 0); | |
512 | ||
513 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | | |
514 | TX_CMD_FLG_TSF_MSK | | |
515 | TX_CMD_FLG_STA_RATE_MSK; | |
516 | ||
517 | return sizeof(*tx_beacon_cmd) + frame_size; | |
518 | } | |
5b9f8cd3 | 519 | static int iwl_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 520 | { |
fcab423d | 521 | struct iwl_frame *frame; |
b481de9c ZY |
522 | unsigned int frame_size; |
523 | int rc; | |
524 | u8 rate; | |
525 | ||
fcab423d | 526 | frame = iwl_get_free_frame(priv); |
b481de9c ZY |
527 | |
528 | if (!frame) { | |
529 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
530 | "command.\n"); | |
531 | return -ENOMEM; | |
532 | } | |
533 | ||
5b9f8cd3 | 534 | rate = iwl_rate_get_lowest_plcp(priv); |
b481de9c | 535 | |
5b9f8cd3 | 536 | frame_size = iwl_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 537 | |
857485c0 | 538 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
539 | &frame->u.cmd[0]); |
540 | ||
fcab423d | 541 | iwl_free_frame(priv, frame); |
b481de9c ZY |
542 | |
543 | return rc; | |
544 | } | |
545 | ||
b481de9c ZY |
546 | /****************************************************************************** |
547 | * | |
548 | * Misc. internal state and helper functions | |
549 | * | |
550 | ******************************************************************************/ | |
b481de9c | 551 | |
5b9f8cd3 | 552 | static void iwl_ht_conf(struct iwl_priv *priv, |
d1141dfb EG |
553 | struct ieee80211_bss_conf *bss_conf) |
554 | { | |
ae5eb026 | 555 | struct ieee80211_sta_ht_cap *ht_conf; |
d1141dfb | 556 | struct iwl_ht_info *iwl_conf = &priv->current_ht_config; |
ae5eb026 | 557 | struct ieee80211_sta *sta; |
d1141dfb EG |
558 | |
559 | IWL_DEBUG_MAC80211("enter: \n"); | |
560 | ||
d1141dfb EG |
561 | if (!iwl_conf->is_ht) |
562 | return; | |
563 | ||
ae5eb026 JB |
564 | |
565 | /* | |
566 | * It is totally wrong to base global information on something | |
567 | * that is valid only when associated, alas, this driver works | |
568 | * that way and I don't know how to fix it. | |
569 | */ | |
570 | ||
571 | rcu_read_lock(); | |
572 | sta = ieee80211_find_sta(priv->hw, priv->bssid); | |
573 | if (!sta) { | |
574 | rcu_read_unlock(); | |
575 | return; | |
576 | } | |
577 | ht_conf = &sta->ht_cap; | |
578 | ||
d1141dfb | 579 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) |
a9841013 | 580 | iwl_conf->sgf |= HT_SHORT_GI_20MHZ; |
d1141dfb | 581 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) |
a9841013 | 582 | iwl_conf->sgf |= HT_SHORT_GI_40MHZ; |
d1141dfb EG |
583 | |
584 | iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); | |
585 | iwl_conf->max_amsdu_size = | |
586 | !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); | |
587 | ||
588 | iwl_conf->supported_chan_width = | |
d9fe60de | 589 | !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40); |
ae5eb026 JB |
590 | |
591 | iwl_conf->extension_chan_offset = bss_conf->ht.secondary_channel_offset; | |
d1141dfb | 592 | /* If no above or below channel supplied disable FAT channel */ |
d9fe60de JB |
593 | if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE && |
594 | iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) { | |
595 | iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
d1141dfb | 596 | iwl_conf->supported_chan_width = 0; |
963f5517 | 597 | } |
d1141dfb | 598 | |
12837be1 RR |
599 | iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2); |
600 | ||
d9fe60de | 601 | memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16); |
d1141dfb | 602 | |
ae5eb026 | 603 | iwl_conf->tx_chan_width = bss_conf->ht.width_40_ok; |
d1141dfb | 604 | iwl_conf->ht_protection = |
ae5eb026 | 605 | bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; |
d1141dfb | 606 | iwl_conf->non_GF_STA_present = |
ae5eb026 JB |
607 | !!(bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); |
608 | ||
609 | rcu_read_unlock(); | |
d1141dfb | 610 | |
d1141dfb EG |
611 | IWL_DEBUG_MAC80211("leave\n"); |
612 | } | |
613 | ||
b481de9c ZY |
614 | /* |
615 | * QoS support | |
616 | */ | |
1ff50bda | 617 | static void iwl_activate_qos(struct iwl_priv *priv, u8 force) |
b481de9c | 618 | { |
b481de9c ZY |
619 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
620 | return; | |
621 | ||
622 | if (!priv->qos_data.qos_enable) | |
623 | return; | |
624 | ||
b481de9c ZY |
625 | priv->qos_data.def_qos_parm.qos_flags = 0; |
626 | ||
627 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
628 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
629 | priv->qos_data.def_qos_parm.qos_flags |= | |
630 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
b481de9c ZY |
631 | if (priv->qos_data.qos_active) |
632 | priv->qos_data.def_qos_parm.qos_flags |= | |
633 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
634 | ||
fd105e79 | 635 | if (priv->current_ht_config.is_ht) |
f1f1f5c7 | 636 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
f1f1f5c7 | 637 | |
3109ece1 | 638 | if (force || iwl_is_associated(priv)) { |
f1f1f5c7 TW |
639 | IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
640 | priv->qos_data.qos_active, | |
641 | priv->qos_data.def_qos_parm.qos_flags); | |
b481de9c | 642 | |
1ff50bda EG |
643 | iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM, |
644 | sizeof(struct iwl_qosparam_cmd), | |
645 | &priv->qos_data.def_qos_parm, NULL); | |
b481de9c ZY |
646 | } |
647 | } | |
648 | ||
b481de9c | 649 | #define MAX_UCODE_BEACON_INTERVAL 4096 |
b481de9c | 650 | |
3195c1f3 | 651 | static u16 iwl_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
652 | { |
653 | u16 new_val = 0; | |
654 | u16 beacon_factor = 0; | |
655 | ||
3195c1f3 TW |
656 | beacon_factor = (beacon_val + MAX_UCODE_BEACON_INTERVAL) |
657 | / MAX_UCODE_BEACON_INTERVAL; | |
b481de9c ZY |
658 | new_val = beacon_val / beacon_factor; |
659 | ||
3195c1f3 | 660 | return new_val; |
b481de9c ZY |
661 | } |
662 | ||
3195c1f3 | 663 | static void iwl_setup_rxon_timing(struct iwl_priv *priv) |
b481de9c | 664 | { |
3195c1f3 TW |
665 | u64 tsf; |
666 | s32 interval_tm, rem; | |
b481de9c ZY |
667 | unsigned long flags; |
668 | struct ieee80211_conf *conf = NULL; | |
669 | u16 beacon_int = 0; | |
670 | ||
671 | conf = ieee80211_get_hw_conf(priv->hw); | |
672 | ||
673 | spin_lock_irqsave(&priv->lock, flags); | |
3195c1f3 | 674 | priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); |
b5d7be5e | 675 | priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval); |
b481de9c | 676 | |
05c914fe | 677 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
3195c1f3 | 678 | beacon_int = iwl_adjust_beacon_interval(priv->beacon_int); |
b481de9c ZY |
679 | priv->rxon_timing.atim_window = 0; |
680 | } else { | |
3195c1f3 TW |
681 | beacon_int = iwl_adjust_beacon_interval(conf->beacon_int); |
682 | ||
b481de9c ZY |
683 | /* TODO: we need to get atim_window from upper stack |
684 | * for now we set to 0 */ | |
685 | priv->rxon_timing.atim_window = 0; | |
686 | } | |
687 | ||
3195c1f3 | 688 | priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int); |
b481de9c | 689 | |
3195c1f3 TW |
690 | tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ |
691 | interval_tm = beacon_int * 1024; | |
692 | rem = do_div(tsf, interval_tm); | |
693 | priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem); | |
694 | ||
695 | spin_unlock_irqrestore(&priv->lock, flags); | |
696 | IWL_DEBUG_ASSOC("beacon interval %d beacon timer %d beacon tim %d\n", | |
697 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
698 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
699 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
b481de9c ZY |
700 | } |
701 | ||
82a66bbb TW |
702 | static void iwl_set_flags_for_band(struct iwl_priv *priv, |
703 | enum ieee80211_band band) | |
b481de9c | 704 | { |
8318d78a | 705 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
706 | priv->staging_rxon.flags &= |
707 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
708 | | RXON_FLG_CCK_MSK); | |
709 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
710 | } else { | |
5b9f8cd3 | 711 | /* Copied from iwl_post_associate() */ |
b481de9c ZY |
712 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
713 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
714 | else | |
715 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
716 | ||
05c914fe | 717 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
718 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
719 | ||
720 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
721 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
722 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
723 | } | |
724 | } | |
725 | ||
726 | /* | |
01ebd063 | 727 | * initialize rxon structure with default values from eeprom |
b481de9c | 728 | */ |
5b9f8cd3 | 729 | static void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) |
b481de9c | 730 | { |
bf85ea4f | 731 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
732 | |
733 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
734 | ||
60294de3 | 735 | switch (mode) { |
05c914fe | 736 | case NL80211_IFTYPE_AP: |
b481de9c ZY |
737 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; |
738 | break; | |
739 | ||
05c914fe | 740 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
741 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; |
742 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
743 | break; | |
744 | ||
05c914fe | 745 | case NL80211_IFTYPE_ADHOC: |
b481de9c ZY |
746 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; |
747 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
748 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
749 | RXON_FILTER_ACCEPT_GRP_MSK; | |
750 | break; | |
751 | ||
05c914fe | 752 | case NL80211_IFTYPE_MONITOR: |
b481de9c ZY |
753 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; |
754 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
755 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
756 | break; | |
69dc5d9d | 757 | default: |
60294de3 | 758 | IWL_ERROR("Unsupported interface type %d\n", mode); |
69dc5d9d | 759 | break; |
b481de9c ZY |
760 | } |
761 | ||
762 | #if 0 | |
763 | /* TODO: Figure out when short_preamble would be set and cache from | |
764 | * that */ | |
765 | if (!hw_to_local(priv->hw)->short_preamble) | |
766 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
767 | else | |
768 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
769 | #endif | |
770 | ||
8622e705 | 771 | ch_info = iwl_get_channel_info(priv, priv->band, |
25b3f57c | 772 | le16_to_cpu(priv->active_rxon.channel)); |
b481de9c ZY |
773 | |
774 | if (!ch_info) | |
775 | ch_info = &priv->channel_info[0]; | |
776 | ||
777 | /* | |
778 | * in some case A channels are all non IBSS | |
779 | * in this case force B/G channel | |
780 | */ | |
05c914fe | 781 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) && |
b481de9c ZY |
782 | !(is_channel_ibss(ch_info))) |
783 | ch_info = &priv->channel_info[0]; | |
784 | ||
785 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
8318d78a | 786 | priv->band = ch_info->band; |
b481de9c | 787 | |
82a66bbb | 788 | iwl_set_flags_for_band(priv, priv->band); |
b481de9c ZY |
789 | |
790 | priv->staging_rxon.ofdm_basic_rates = | |
791 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
792 | priv->staging_rxon.cck_basic_rates = | |
793 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
794 | ||
795 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
796 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
797 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
798 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); | |
799 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; | |
800 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; | |
c7de35cd | 801 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
802 | } |
803 | ||
5b9f8cd3 | 804 | static int iwl_set_mode(struct iwl_priv *priv, int mode) |
b481de9c | 805 | { |
5b9f8cd3 | 806 | iwl_connection_init_rx_config(priv, mode); |
b481de9c ZY |
807 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
808 | ||
37deb2a0 | 809 | iwl_clear_stations_table(priv); |
b481de9c | 810 | |
fde3571f | 811 | /* dont commit rxon if rf-kill is on*/ |
fee1247a | 812 | if (!iwl_is_ready_rf(priv)) |
fde3571f MA |
813 | return -EAGAIN; |
814 | ||
815 | cancel_delayed_work(&priv->scan_check); | |
2a421b91 | 816 | if (iwl_scan_cancel_timeout(priv, 100)) { |
fde3571f MA |
817 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); |
818 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
819 | return -EAGAIN; | |
820 | } | |
821 | ||
5b9f8cd3 | 822 | iwl_commit_rxon(priv); |
b481de9c ZY |
823 | |
824 | return 0; | |
825 | } | |
826 | ||
5b9f8cd3 | 827 | static void iwl_set_rate(struct iwl_priv *priv) |
b481de9c | 828 | { |
8318d78a | 829 | const struct ieee80211_supported_band *hw = NULL; |
b481de9c ZY |
830 | struct ieee80211_rate *rate; |
831 | int i; | |
832 | ||
d1141dfb | 833 | hw = iwl_get_hw_mode(priv, priv->band); |
c4ba9621 SA |
834 | if (!hw) { |
835 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); | |
836 | return; | |
837 | } | |
b481de9c ZY |
838 | |
839 | priv->active_rate = 0; | |
840 | priv->active_rate_basic = 0; | |
841 | ||
8318d78a JB |
842 | for (i = 0; i < hw->n_bitrates; i++) { |
843 | rate = &(hw->bitrates[i]); | |
844 | if (rate->hw_value < IWL_RATE_COUNT) | |
845 | priv->active_rate |= (1 << rate->hw_value); | |
b481de9c ZY |
846 | } |
847 | ||
848 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
849 | priv->active_rate, priv->active_rate_basic); | |
850 | ||
851 | /* | |
852 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
853 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
854 | * OFDM | |
855 | */ | |
856 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
857 | priv->staging_rxon.cck_basic_rates = | |
858 | ((priv->active_rate_basic & | |
859 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
860 | else | |
861 | priv->staging_rxon.cck_basic_rates = | |
862 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
863 | ||
864 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
865 | priv->staging_rxon.ofdm_basic_rates = | |
866 | ((priv->active_rate_basic & | |
867 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
868 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
869 | else | |
870 | priv->staging_rxon.ofdm_basic_rates = | |
871 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
872 | } | |
873 | ||
b481de9c | 874 | |
b481de9c ZY |
875 | /****************************************************************************** |
876 | * | |
877 | * Generic RX handler implementations | |
878 | * | |
879 | ******************************************************************************/ | |
885ba202 TW |
880 | static void iwl_rx_reply_alive(struct iwl_priv *priv, |
881 | struct iwl_rx_mem_buffer *rxb) | |
b481de9c | 882 | { |
db11d634 | 883 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
885ba202 | 884 | struct iwl_alive_resp *palive; |
b481de9c ZY |
885 | struct delayed_work *pwork; |
886 | ||
887 | palive = &pkt->u.alive_frame; | |
888 | ||
889 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
890 | "0x%01X 0x%01X\n", | |
891 | palive->is_valid, palive->ver_type, | |
892 | palive->ver_subtype); | |
893 | ||
894 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
895 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
896 | memcpy(&priv->card_alive_init, | |
897 | &pkt->u.alive_frame, | |
885ba202 | 898 | sizeof(struct iwl_init_alive_resp)); |
b481de9c ZY |
899 | pwork = &priv->init_alive_start; |
900 | } else { | |
901 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
902 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
885ba202 | 903 | sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
904 | pwork = &priv->alive_start; |
905 | } | |
906 | ||
907 | /* We delay the ALIVE response by 5ms to | |
908 | * give the HW RF Kill time to activate... */ | |
909 | if (palive->is_valid == UCODE_VALID_OK) | |
910 | queue_delayed_work(priv->workqueue, pwork, | |
911 | msecs_to_jiffies(5)); | |
912 | else | |
913 | IWL_WARNING("uCode did not respond OK.\n"); | |
914 | } | |
915 | ||
5b9f8cd3 | 916 | static void iwl_rx_reply_error(struct iwl_priv *priv, |
a55360e4 | 917 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 918 | { |
db11d634 | 919 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
920 | |
921 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
922 | "seq 0x%04X ser 0x%08X\n", | |
923 | le32_to_cpu(pkt->u.err_resp.error_type), | |
924 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
925 | pkt->u.err_resp.cmd_id, | |
926 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
927 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
928 | } | |
929 | ||
930 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
931 | ||
5b9f8cd3 | 932 | static void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
b481de9c | 933 | { |
db11d634 | 934 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
c1adf9fb | 935 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
bb8c093b | 936 | struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif); |
b481de9c ZY |
937 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
938 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
939 | rxon->channel = csa->channel; | |
940 | priv->staging_rxon.channel = csa->channel; | |
941 | } | |
942 | ||
5b9f8cd3 | 943 | static void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, |
a55360e4 | 944 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 945 | { |
0a6857e7 | 946 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 947 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 948 | struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif); |
b481de9c ZY |
949 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
950 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
951 | #endif | |
952 | } | |
953 | ||
5b9f8cd3 | 954 | static void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
a55360e4 | 955 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 956 | { |
db11d634 | 957 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
958 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
959 | "notification for %s:\n", | |
960 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bf403db8 | 961 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
962 | } |
963 | ||
5b9f8cd3 | 964 | static void iwl_bg_beacon_update(struct work_struct *work) |
b481de9c | 965 | { |
c79dd5b5 TW |
966 | struct iwl_priv *priv = |
967 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
968 | struct sk_buff *beacon; |
969 | ||
970 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 971 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
972 | |
973 | if (!beacon) { | |
974 | IWL_ERROR("update beacon failed\n"); | |
975 | return; | |
976 | } | |
977 | ||
978 | mutex_lock(&priv->mutex); | |
979 | /* new beacon skb is allocated every time; dispose previous.*/ | |
980 | if (priv->ibss_beacon) | |
981 | dev_kfree_skb(priv->ibss_beacon); | |
982 | ||
983 | priv->ibss_beacon = beacon; | |
984 | mutex_unlock(&priv->mutex); | |
985 | ||
5b9f8cd3 | 986 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
987 | } |
988 | ||
4e39317d | 989 | /** |
5b9f8cd3 | 990 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
4e39317d EG |
991 | * |
992 | * This callback is provided in order to send a statistics request. | |
993 | * | |
994 | * This timer function is continually reset to execute within | |
995 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
996 | * was received. We need to ensure we receive the statistics in order | |
997 | * to update the temperature used for calibrating the TXPOWER. | |
998 | */ | |
5b9f8cd3 | 999 | static void iwl_bg_statistics_periodic(unsigned long data) |
4e39317d EG |
1000 | { |
1001 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
1002 | ||
1003 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
1004 | return; | |
1005 | ||
61780ee3 MA |
1006 | /* dont send host command if rf-kill is on */ |
1007 | if (!iwl_is_ready_rf(priv)) | |
1008 | return; | |
1009 | ||
4e39317d EG |
1010 | iwl_send_statistics_request(priv, CMD_ASYNC); |
1011 | } | |
1012 | ||
5b9f8cd3 | 1013 | static void iwl_rx_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 1014 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1015 | { |
0a6857e7 | 1016 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1017 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1018 | struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status); |
e7d326ac | 1019 | u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); |
b481de9c ZY |
1020 | |
1021 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
1022 | "tsf %d %d rate %d\n", | |
25a6572c | 1023 | le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, |
b481de9c ZY |
1024 | beacon->beacon_notify_hdr.failure_frame, |
1025 | le32_to_cpu(beacon->ibss_mgr_status), | |
1026 | le32_to_cpu(beacon->high_tsf), | |
1027 | le32_to_cpu(beacon->low_tsf), rate); | |
1028 | #endif | |
1029 | ||
05c914fe | 1030 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
1031 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
1032 | queue_work(priv->workqueue, &priv->beacon_update); | |
1033 | } | |
1034 | ||
b481de9c ZY |
1035 | /* Handle notification from uCode that card's power state is changing |
1036 | * due to software, hardware, or critical temperature RFKILL */ | |
5b9f8cd3 | 1037 | static void iwl_rx_card_state_notif(struct iwl_priv *priv, |
a55360e4 | 1038 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1039 | { |
db11d634 | 1040 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1041 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
1042 | unsigned long status = priv->status; | |
1043 | ||
1044 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
1045 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
1046 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
1047 | ||
1048 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | | |
1049 | RF_CARD_DISABLED)) { | |
1050 | ||
3395f6e9 | 1051 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1052 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
1053 | ||
3395f6e9 TW |
1054 | if (!iwl_grab_nic_access(priv)) { |
1055 | iwl_write_direct32( | |
b481de9c ZY |
1056 | priv, HBUS_TARG_MBX_C, |
1057 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1058 | ||
3395f6e9 | 1059 | iwl_release_nic_access(priv); |
b481de9c ZY |
1060 | } |
1061 | ||
1062 | if (!(flags & RXON_CARD_DISABLED)) { | |
3395f6e9 | 1063 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c | 1064 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3395f6e9 TW |
1065 | if (!iwl_grab_nic_access(priv)) { |
1066 | iwl_write_direct32( | |
b481de9c ZY |
1067 | priv, HBUS_TARG_MBX_C, |
1068 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1069 | ||
3395f6e9 | 1070 | iwl_release_nic_access(priv); |
b481de9c ZY |
1071 | } |
1072 | } | |
1073 | ||
1074 | if (flags & RF_CARD_DISABLED) { | |
3395f6e9 | 1075 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c | 1076 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
3395f6e9 TW |
1077 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1078 | if (!iwl_grab_nic_access(priv)) | |
1079 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1080 | } |
1081 | } | |
1082 | ||
1083 | if (flags & HW_CARD_DISABLED) | |
1084 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1085 | else | |
1086 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
1087 | ||
1088 | ||
1089 | if (flags & SW_CARD_DISABLED) | |
1090 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1091 | else | |
1092 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1093 | ||
1094 | if (!(flags & RXON_CARD_DISABLED)) | |
2a421b91 | 1095 | iwl_scan_cancel(priv); |
b481de9c ZY |
1096 | |
1097 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
1098 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
1099 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
1100 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
1101 | queue_work(priv->workqueue, &priv->rf_kill); | |
1102 | else | |
1103 | wake_up_interruptible(&priv->wait_command_queue); | |
1104 | } | |
1105 | ||
5b9f8cd3 | 1106 | int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) |
e2e3c57b TW |
1107 | { |
1108 | int ret; | |
1109 | unsigned long flags; | |
1110 | ||
1111 | spin_lock_irqsave(&priv->lock, flags); | |
1112 | ret = iwl_grab_nic_access(priv); | |
1113 | if (ret) | |
1114 | goto err; | |
1115 | ||
1116 | if (src == IWL_PWR_SRC_VAUX) { | |
1117 | u32 val; | |
e7b63581 | 1118 | ret = pci_read_config_dword(priv->pci_dev, PCI_CFG_POWER_SOURCE, |
e2e3c57b TW |
1119 | &val); |
1120 | ||
1121 | if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) | |
1122 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, | |
1123 | APMG_PS_CTRL_VAL_PWR_SRC_VAUX, | |
1124 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
1125 | } else { | |
1126 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, | |
1127 | APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, | |
1128 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
1129 | } | |
1130 | ||
1131 | iwl_release_nic_access(priv); | |
1132 | err: | |
1133 | spin_unlock_irqrestore(&priv->lock, flags); | |
1134 | return ret; | |
1135 | } | |
1136 | ||
b481de9c | 1137 | /** |
5b9f8cd3 | 1138 | * iwl_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
1139 | * |
1140 | * Setup the RX handlers for each of the reply types sent from the uCode | |
1141 | * to the host. | |
1142 | * | |
1143 | * This function chains into the hardware specific files for them to setup | |
1144 | * any hardware specific handlers as well. | |
1145 | */ | |
653fa4a0 | 1146 | static void iwl_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 1147 | { |
885ba202 | 1148 | priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; |
5b9f8cd3 EG |
1149 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
1150 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; | |
5b9f8cd3 | 1151 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
b481de9c | 1152 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
5b9f8cd3 EG |
1153 | iwl_rx_pm_debug_statistics_notif; |
1154 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif; | |
b481de9c | 1155 | |
9fbab516 BC |
1156 | /* |
1157 | * The same handler is used for both the REPLY to a discrete | |
1158 | * statistics request from the host as well as for the periodic | |
1159 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 1160 | */ |
8f91aecb EG |
1161 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics; |
1162 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics; | |
2a421b91 | 1163 | |
21c339bf | 1164 | iwl_setup_spectrum_handlers(priv); |
2a421b91 TW |
1165 | iwl_setup_rx_scan_handlers(priv); |
1166 | ||
37a44211 | 1167 | /* status change handler */ |
5b9f8cd3 | 1168 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif; |
b481de9c | 1169 | |
c1354754 TW |
1170 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = |
1171 | iwl_rx_missed_beacon_notif; | |
37a44211 | 1172 | /* Rx handlers */ |
1781a07f EG |
1173 | priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy; |
1174 | priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx; | |
653fa4a0 EG |
1175 | /* block ack */ |
1176 | priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba; | |
9fbab516 | 1177 | /* Set up hardware specific Rx handlers */ |
d4789efe | 1178 | priv->cfg->ops->lib->rx_handler_setup(priv); |
b481de9c ZY |
1179 | } |
1180 | ||
5c0eef96 MA |
1181 | /* |
1182 | * this should be called while priv->lock is locked | |
1183 | */ | |
a55360e4 | 1184 | static void __iwl_rx_replenish(struct iwl_priv *priv) |
b481de9c | 1185 | { |
a55360e4 TW |
1186 | iwl_rx_allocate(priv); |
1187 | iwl_rx_queue_restock(priv); | |
b481de9c ZY |
1188 | } |
1189 | ||
b481de9c ZY |
1190 | |
1191 | /** | |
a55360e4 | 1192 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
1193 | * |
1194 | * Uses the priv->rx_handlers callback function array to invoke | |
1195 | * the appropriate handlers, including command responses, | |
1196 | * frame-received notifications, and other notifications. | |
1197 | */ | |
a55360e4 | 1198 | void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 1199 | { |
a55360e4 | 1200 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 1201 | struct iwl_rx_packet *pkt; |
a55360e4 | 1202 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
1203 | u32 r, i; |
1204 | int reclaim; | |
1205 | unsigned long flags; | |
5c0eef96 | 1206 | u8 fill_rx = 0; |
d68ab680 | 1207 | u32 count = 8; |
b481de9c | 1208 | |
6440adb5 CB |
1209 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
1210 | * buffer that the driver may process (last buffer filled by ucode). */ | |
8d86422a | 1211 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
b481de9c ZY |
1212 | i = rxq->read; |
1213 | ||
1214 | /* Rx interrupt, but nothing sent from uCode */ | |
1215 | if (i == r) | |
f3d67999 | 1216 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i); |
b481de9c | 1217 | |
a55360e4 | 1218 | if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
5c0eef96 MA |
1219 | fill_rx = 1; |
1220 | ||
b481de9c ZY |
1221 | while (i != r) { |
1222 | rxb = rxq->queue[i]; | |
1223 | ||
9fbab516 | 1224 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
1225 | * then a bug has been introduced in the queue refilling |
1226 | * routines -- catch it here */ | |
1227 | BUG_ON(rxb == NULL); | |
1228 | ||
1229 | rxq->queue[i] = NULL; | |
1230 | ||
4018517a | 1231 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->aligned_dma_addr, |
5425e490 | 1232 | priv->hw_params.rx_buf_size, |
b481de9c | 1233 | PCI_DMA_FROMDEVICE); |
db11d634 | 1234 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1235 | |
1236 | /* Reclaim a command buffer only if this packet is a response | |
1237 | * to a (driver-originated) command. | |
1238 | * If the packet (e.g. Rx frame) originated from uCode, | |
1239 | * there is no command buffer to reclaim. | |
1240 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1241 | * but apparently a few don't get set; catch them here. */ | |
1242 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
1243 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 1244 | (pkt->hdr.cmd != REPLY_RX) && |
7dddaf1a | 1245 | (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && |
cfe01709 | 1246 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
1247 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
1248 | (pkt->hdr.cmd != REPLY_TX); | |
1249 | ||
1250 | /* Based on type of command response or notification, | |
1251 | * handle those that need handling via function in | |
5b9f8cd3 | 1252 | * rx_handlers table. See iwl_setup_rx_handlers() */ |
b481de9c | 1253 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
f3d67999 EK |
1254 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r, |
1255 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
b481de9c ZY |
1256 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
1257 | } else { | |
1258 | /* No handling needed */ | |
f3d67999 | 1259 | IWL_DEBUG(IWL_DL_RX, |
b481de9c ZY |
1260 | "r %d i %d No handler needed for %s, 0x%02x\n", |
1261 | r, i, get_cmd_string(pkt->hdr.cmd), | |
1262 | pkt->hdr.cmd); | |
1263 | } | |
1264 | ||
1265 | if (reclaim) { | |
9fbab516 | 1266 | /* Invoke any callbacks, transfer the skb to caller, and |
857485c0 | 1267 | * fire off the (possibly) blocking iwl_send_cmd() |
b481de9c ZY |
1268 | * as we reclaim the driver command queue */ |
1269 | if (rxb && rxb->skb) | |
17b88929 | 1270 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
1271 | else |
1272 | IWL_WARNING("Claim null rxb?\n"); | |
1273 | } | |
1274 | ||
1275 | /* For now we just don't re-use anything. We can tweak this | |
1276 | * later to try and re-use notification packets and SKBs that | |
1277 | * fail to Rx correctly */ | |
1278 | if (rxb->skb != NULL) { | |
1279 | priv->alloc_rxb_skb--; | |
1280 | dev_kfree_skb_any(rxb->skb); | |
1281 | rxb->skb = NULL; | |
1282 | } | |
1283 | ||
4018517a JB |
1284 | pci_unmap_single(priv->pci_dev, rxb->real_dma_addr, |
1285 | priv->hw_params.rx_buf_size + 256, | |
9ee1ba47 | 1286 | PCI_DMA_FROMDEVICE); |
b481de9c ZY |
1287 | spin_lock_irqsave(&rxq->lock, flags); |
1288 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
1289 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1290 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
1291 | /* If there are a lot of unused frames, |
1292 | * restock the Rx queue so ucode wont assert. */ | |
1293 | if (fill_rx) { | |
1294 | count++; | |
1295 | if (count >= 8) { | |
1296 | priv->rxq.read = i; | |
a55360e4 | 1297 | __iwl_rx_replenish(priv); |
5c0eef96 MA |
1298 | count = 0; |
1299 | } | |
1300 | } | |
b481de9c ZY |
1301 | } |
1302 | ||
1303 | /* Backtrack one entry */ | |
1304 | priv->rxq.read = i; | |
a55360e4 TW |
1305 | iwl_rx_queue_restock(priv); |
1306 | } | |
a55360e4 | 1307 | |
0a6857e7 | 1308 | #ifdef CONFIG_IWLWIFI_DEBUG |
5b9f8cd3 | 1309 | static void iwl_print_rx_config_cmd(struct iwl_priv *priv) |
b481de9c | 1310 | { |
c1adf9fb | 1311 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
0795af57 | 1312 | |
b481de9c | 1313 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bf403db8 | 1314 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
1315 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
1316 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
1317 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
1318 | le32_to_cpu(rxon->filter_flags)); | |
1319 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
1320 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
1321 | rxon->ofdm_basic_rates); | |
1322 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
e174961c JB |
1323 | IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr); |
1324 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
b481de9c ZY |
1325 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
1326 | } | |
1327 | #endif | |
1328 | ||
5b9f8cd3 | 1329 | static void iwl_enable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
1330 | { |
1331 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
1332 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
3395f6e9 | 1333 | iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
1334 | } |
1335 | ||
0359facc MA |
1336 | /* call this function to flush any scheduled tasklet */ |
1337 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) | |
1338 | { | |
a96a27f9 | 1339 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
1340 | synchronize_irq(priv->pci_dev->irq); |
1341 | tasklet_kill(&priv->irq_tasklet); | |
1342 | } | |
1343 | ||
5b9f8cd3 | 1344 | static inline void iwl_disable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
1345 | { |
1346 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
1347 | ||
1348 | /* disable interrupts from uCode/NIC to host */ | |
3395f6e9 | 1349 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
1350 | |
1351 | /* acknowledge/clear/reset any interrupts still pending | |
1352 | * from uCode or flow handler (Rx/Tx DMA) */ | |
3395f6e9 TW |
1353 | iwl_write32(priv, CSR_INT, 0xffffffff); |
1354 | iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
1355 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
1356 | } | |
1357 | ||
b481de9c | 1358 | |
b481de9c | 1359 | /** |
5b9f8cd3 | 1360 | * iwl_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 1361 | */ |
5b9f8cd3 | 1362 | static void iwl_irq_handle_error(struct iwl_priv *priv) |
b481de9c | 1363 | { |
5b9f8cd3 | 1364 | /* Set the FW error flag -- cleared on iwl_down */ |
b481de9c ZY |
1365 | set_bit(STATUS_FW_ERROR, &priv->status); |
1366 | ||
1367 | /* Cancel currently queued command. */ | |
1368 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
1369 | ||
0a6857e7 | 1370 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1371 | if (priv->debug_level & IWL_DL_FW_ERRORS) { |
ede0cba4 | 1372 | iwl_dump_nic_error_log(priv); |
189a2b59 | 1373 | iwl_dump_nic_event_log(priv); |
5b9f8cd3 | 1374 | iwl_print_rx_config_cmd(priv); |
b481de9c ZY |
1375 | } |
1376 | #endif | |
1377 | ||
1378 | wake_up_interruptible(&priv->wait_command_queue); | |
1379 | ||
1380 | /* Keep the restart process from trying to send host | |
1381 | * commands by clearing the INIT status bit */ | |
1382 | clear_bit(STATUS_READY, &priv->status); | |
1383 | ||
1384 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
f3d67999 | 1385 | IWL_DEBUG(IWL_DL_FW_ERRORS, |
b481de9c ZY |
1386 | "Restarting adapter due to uCode error.\n"); |
1387 | ||
3109ece1 | 1388 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
1389 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
1390 | sizeof(priv->recovery_rxon)); | |
1391 | priv->error_recovering = 1; | |
1392 | } | |
3a1081e8 EK |
1393 | if (priv->cfg->mod_params->restart_fw) |
1394 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
1395 | } |
1396 | } | |
1397 | ||
5b9f8cd3 | 1398 | static void iwl_error_recovery(struct iwl_priv *priv) |
b481de9c ZY |
1399 | { |
1400 | unsigned long flags; | |
1401 | ||
1402 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
1403 | sizeof(priv->staging_rxon)); | |
1404 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 1405 | iwl_commit_rxon(priv); |
b481de9c | 1406 | |
4f40e4d9 | 1407 | iwl_rxon_add_station(priv, priv->bssid, 1); |
b481de9c ZY |
1408 | |
1409 | spin_lock_irqsave(&priv->lock, flags); | |
1410 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
1411 | priv->error_recovering = 0; | |
1412 | spin_unlock_irqrestore(&priv->lock, flags); | |
1413 | } | |
1414 | ||
5b9f8cd3 | 1415 | static void iwl_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
1416 | { |
1417 | u32 inta, handled = 0; | |
1418 | u32 inta_fh; | |
1419 | unsigned long flags; | |
0a6857e7 | 1420 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
1421 | u32 inta_mask; |
1422 | #endif | |
1423 | ||
1424 | spin_lock_irqsave(&priv->lock, flags); | |
1425 | ||
1426 | /* Ack/clear/reset pending uCode interrupts. | |
1427 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1428 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
3395f6e9 TW |
1429 | inta = iwl_read32(priv, CSR_INT); |
1430 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
1431 | |
1432 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
1433 | * Any new interrupts that happen after this, either while we're | |
1434 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
3395f6e9 TW |
1435 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
1436 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 1437 | |
0a6857e7 | 1438 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1439 | if (priv->debug_level & IWL_DL_ISR) { |
9fbab516 | 1440 | /* just for debug */ |
3395f6e9 | 1441 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
b481de9c ZY |
1442 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
1443 | inta, inta_mask, inta_fh); | |
1444 | } | |
1445 | #endif | |
1446 | ||
1447 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
1448 | * atomic, make sure that inta covers all the interrupts that | |
1449 | * we've discovered, even if FH interrupt came in just after | |
1450 | * reading CSR_INT. */ | |
6f83eaa1 | 1451 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
b481de9c | 1452 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 1453 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
b481de9c ZY |
1454 | inta |= CSR_INT_BIT_FH_TX; |
1455 | ||
1456 | /* Now service all interrupt bits discovered above. */ | |
1457 | if (inta & CSR_INT_BIT_HW_ERR) { | |
1458 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
1459 | ||
1460 | /* Tell the device to stop sending interrupts */ | |
5b9f8cd3 | 1461 | iwl_disable_interrupts(priv); |
b481de9c | 1462 | |
5b9f8cd3 | 1463 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1464 | |
1465 | handled |= CSR_INT_BIT_HW_ERR; | |
1466 | ||
1467 | spin_unlock_irqrestore(&priv->lock, flags); | |
1468 | ||
1469 | return; | |
1470 | } | |
1471 | ||
0a6857e7 | 1472 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1473 | if (priv->debug_level & (IWL_DL_ISR)) { |
b481de9c | 1474 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
1475 | if (inta & CSR_INT_BIT_SCD) |
1476 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
1477 | "the frame/frames.\n"); | |
b481de9c ZY |
1478 | |
1479 | /* Alive notification via Rx interrupt will do the real work */ | |
1480 | if (inta & CSR_INT_BIT_ALIVE) | |
1481 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
1482 | } | |
1483 | #endif | |
1484 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 1485 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 1486 | |
9fbab516 | 1487 | /* HW RF KILL switch toggled */ |
b481de9c ZY |
1488 | if (inta & CSR_INT_BIT_RF_KILL) { |
1489 | int hw_rf_kill = 0; | |
3395f6e9 | 1490 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
1491 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
1492 | hw_rf_kill = 1; | |
1493 | ||
f3d67999 | 1494 | IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n", |
b481de9c ZY |
1495 | hw_rf_kill ? "disable radio":"enable radio"); |
1496 | ||
a9efa652 EG |
1497 | /* driver only loads ucode once setting the interface up. |
1498 | * the driver as well won't allow loading if RFKILL is set | |
1499 | * therefore no need to restart the driver from this handler | |
1500 | */ | |
1501 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) | |
53e49093 | 1502 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
b481de9c ZY |
1503 | |
1504 | handled |= CSR_INT_BIT_RF_KILL; | |
1505 | } | |
1506 | ||
9fbab516 | 1507 | /* Chip got too hot and stopped itself */ |
b481de9c ZY |
1508 | if (inta & CSR_INT_BIT_CT_KILL) { |
1509 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
1510 | handled |= CSR_INT_BIT_CT_KILL; | |
1511 | } | |
1512 | ||
1513 | /* Error detected by uCode */ | |
1514 | if (inta & CSR_INT_BIT_SW_ERR) { | |
1515 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
1516 | inta); | |
5b9f8cd3 | 1517 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1518 | handled |= CSR_INT_BIT_SW_ERR; |
1519 | } | |
1520 | ||
1521 | /* uCode wakes up after power-down sleep */ | |
1522 | if (inta & CSR_INT_BIT_WAKEUP) { | |
1523 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
a55360e4 | 1524 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
babcebfa TW |
1525 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
1526 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
1527 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
1528 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
1529 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
1530 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
1531 | |
1532 | handled |= CSR_INT_BIT_WAKEUP; | |
1533 | } | |
1534 | ||
1535 | /* All uCode command responses, including Tx command responses, | |
1536 | * Rx "responses" (frame-received notification), and other | |
1537 | * notifications from uCode come through here*/ | |
1538 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
a55360e4 | 1539 | iwl_rx_handle(priv); |
b481de9c ZY |
1540 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
1541 | } | |
1542 | ||
1543 | if (inta & CSR_INT_BIT_FH_TX) { | |
1544 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
1545 | handled |= CSR_INT_BIT_FH_TX; | |
dbb983b7 RR |
1546 | /* FH finished to write, send event */ |
1547 | priv->ucode_write_complete = 1; | |
1548 | wake_up_interruptible(&priv->wait_command_queue); | |
b481de9c ZY |
1549 | } |
1550 | ||
1551 | if (inta & ~handled) | |
1552 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
1553 | ||
1554 | if (inta & ~CSR_INI_SET_MASK) { | |
1555 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
1556 | inta & ~CSR_INI_SET_MASK); | |
1557 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
1558 | } | |
1559 | ||
1560 | /* Re-enable all interrupts */ | |
0359facc MA |
1561 | /* only Re-enable if diabled by irq */ |
1562 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
5b9f8cd3 | 1563 | iwl_enable_interrupts(priv); |
b481de9c | 1564 | |
0a6857e7 | 1565 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1566 | if (priv->debug_level & (IWL_DL_ISR)) { |
3395f6e9 TW |
1567 | inta = iwl_read32(priv, CSR_INT); |
1568 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
1569 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
1570 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
1571 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
1572 | } | |
1573 | #endif | |
1574 | spin_unlock_irqrestore(&priv->lock, flags); | |
1575 | } | |
1576 | ||
5b9f8cd3 | 1577 | static irqreturn_t iwl_isr(int irq, void *data) |
b481de9c | 1578 | { |
c79dd5b5 | 1579 | struct iwl_priv *priv = data; |
b481de9c ZY |
1580 | u32 inta, inta_mask; |
1581 | u32 inta_fh; | |
1582 | if (!priv) | |
1583 | return IRQ_NONE; | |
1584 | ||
1585 | spin_lock(&priv->lock); | |
1586 | ||
1587 | /* Disable (but don't clear!) interrupts here to avoid | |
1588 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
1589 | * If we have something to service, the tasklet will re-enable ints. | |
1590 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
3395f6e9 TW |
1591 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
1592 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
1593 | |
1594 | /* Discover which interrupts are active/pending */ | |
3395f6e9 TW |
1595 | inta = iwl_read32(priv, CSR_INT); |
1596 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
1597 | |
1598 | /* Ignore interrupt if there's nothing in NIC to service. | |
1599 | * This may be due to IRQ shared with another device, | |
1600 | * or due to sporadic interrupts thrown from our NIC. */ | |
1601 | if (!inta && !inta_fh) { | |
1602 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
1603 | goto none; | |
1604 | } | |
1605 | ||
1606 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
66fbb541 ON |
1607 | /* Hardware disappeared. It might have already raised |
1608 | * an interrupt */ | |
b481de9c | 1609 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); |
66fbb541 | 1610 | goto unplugged; |
b481de9c ZY |
1611 | } |
1612 | ||
1613 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
1614 | inta, inta_mask, inta_fh); | |
1615 | ||
25c03d8e JP |
1616 | inta &= ~CSR_INT_BIT_SCD; |
1617 | ||
5b9f8cd3 | 1618 | /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
1619 | if (likely(inta || inta_fh)) |
1620 | tasklet_schedule(&priv->irq_tasklet); | |
b481de9c | 1621 | |
66fbb541 ON |
1622 | unplugged: |
1623 | spin_unlock(&priv->lock); | |
b481de9c ZY |
1624 | return IRQ_HANDLED; |
1625 | ||
1626 | none: | |
1627 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
1628 | /* only Re-enable if diabled by irq */ |
1629 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
5b9f8cd3 | 1630 | iwl_enable_interrupts(priv); |
b481de9c ZY |
1631 | spin_unlock(&priv->lock); |
1632 | return IRQ_NONE; | |
1633 | } | |
1634 | ||
b481de9c ZY |
1635 | /****************************************************************************** |
1636 | * | |
1637 | * uCode download functions | |
1638 | * | |
1639 | ******************************************************************************/ | |
1640 | ||
5b9f8cd3 | 1641 | static void iwl_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 1642 | { |
98c92211 TW |
1643 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
1644 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
1645 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
1646 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
1647 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
1648 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
1649 | } |
1650 | ||
5b9f8cd3 | 1651 | static void iwl_nic_start(struct iwl_priv *priv) |
edcdf8b2 RR |
1652 | { |
1653 | /* Remove all resets to allow NIC to operate */ | |
1654 | iwl_write32(priv, CSR_RESET, 0); | |
1655 | } | |
1656 | ||
1657 | ||
b481de9c | 1658 | /** |
5b9f8cd3 | 1659 | * iwl_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
1660 | * |
1661 | * Copy into buffers for card to fetch via bus-mastering | |
1662 | */ | |
5b9f8cd3 | 1663 | static int iwl_read_ucode(struct iwl_priv *priv) |
b481de9c | 1664 | { |
14b3d338 | 1665 | struct iwl_ucode *ucode; |
90e759d1 | 1666 | int ret; |
b481de9c | 1667 | const struct firmware *ucode_raw; |
4bf775cd | 1668 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
1669 | u8 *src; |
1670 | size_t len; | |
1671 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
1672 | ||
1673 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
1674 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
1675 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
1676 | if (ret < 0) { | |
1677 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
1678 | name, ret); | |
b481de9c ZY |
1679 | goto error; |
1680 | } | |
1681 | ||
1682 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
1683 | name, ucode_raw->size); | |
1684 | ||
1685 | /* Make sure that we got at least our header! */ | |
1686 | if (ucode_raw->size < sizeof(*ucode)) { | |
1687 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 1688 | ret = -EINVAL; |
b481de9c ZY |
1689 | goto err_release; |
1690 | } | |
1691 | ||
1692 | /* Data from ucode file: header followed by uCode images */ | |
1693 | ucode = (void *)ucode_raw->data; | |
1694 | ||
1695 | ver = le32_to_cpu(ucode->ver); | |
1696 | inst_size = le32_to_cpu(ucode->inst_size); | |
1697 | data_size = le32_to_cpu(ucode->data_size); | |
1698 | init_size = le32_to_cpu(ucode->init_size); | |
1699 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
1700 | boot_size = le32_to_cpu(ucode->boot_size); | |
1701 | ||
1702 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
1703 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", | |
1704 | inst_size); | |
1705 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", | |
1706 | data_size); | |
1707 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", | |
1708 | init_size); | |
1709 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", | |
1710 | init_data_size); | |
1711 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", | |
1712 | boot_size); | |
1713 | ||
1714 | /* Verify size of file vs. image size info in file's header */ | |
1715 | if (ucode_raw->size < sizeof(*ucode) + | |
1716 | inst_size + data_size + init_size + | |
1717 | init_data_size + boot_size) { | |
1718 | ||
1719 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
1720 | (int)ucode_raw->size); | |
90e759d1 | 1721 | ret = -EINVAL; |
b481de9c ZY |
1722 | goto err_release; |
1723 | } | |
1724 | ||
1725 | /* Verify that uCode images will fit in card's SRAM */ | |
099b40b7 | 1726 | if (inst_size > priv->hw_params.max_inst_size) { |
90e759d1 TW |
1727 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
1728 | inst_size); | |
1729 | ret = -EINVAL; | |
b481de9c ZY |
1730 | goto err_release; |
1731 | } | |
1732 | ||
099b40b7 | 1733 | if (data_size > priv->hw_params.max_data_size) { |
90e759d1 TW |
1734 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
1735 | data_size); | |
1736 | ret = -EINVAL; | |
b481de9c ZY |
1737 | goto err_release; |
1738 | } | |
099b40b7 | 1739 | if (init_size > priv->hw_params.max_inst_size) { |
b481de9c | 1740 | IWL_DEBUG_INFO |
90e759d1 TW |
1741 | ("uCode init instr len %d too large to fit in\n", |
1742 | init_size); | |
1743 | ret = -EINVAL; | |
b481de9c ZY |
1744 | goto err_release; |
1745 | } | |
099b40b7 | 1746 | if (init_data_size > priv->hw_params.max_data_size) { |
b481de9c | 1747 | IWL_DEBUG_INFO |
90e759d1 TW |
1748 | ("uCode init data len %d too large to fit in\n", |
1749 | init_data_size); | |
1750 | ret = -EINVAL; | |
b481de9c ZY |
1751 | goto err_release; |
1752 | } | |
099b40b7 | 1753 | if (boot_size > priv->hw_params.max_bsm_size) { |
b481de9c | 1754 | IWL_DEBUG_INFO |
90e759d1 TW |
1755 | ("uCode boot instr len %d too large to fit in\n", |
1756 | boot_size); | |
1757 | ret = -EINVAL; | |
b481de9c ZY |
1758 | goto err_release; |
1759 | } | |
1760 | ||
1761 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
1762 | ||
1763 | /* Runtime instructions and 2 copies of data: | |
1764 | * 1) unmodified from disk | |
1765 | * 2) backup cache for save/restore during power-downs */ | |
1766 | priv->ucode_code.len = inst_size; | |
98c92211 | 1767 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
1768 | |
1769 | priv->ucode_data.len = data_size; | |
98c92211 | 1770 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
1771 | |
1772 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 1773 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c ZY |
1774 | |
1775 | /* Initialization instructions and data */ | |
90e759d1 TW |
1776 | if (init_size && init_data_size) { |
1777 | priv->ucode_init.len = init_size; | |
98c92211 | 1778 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
1779 | |
1780 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 1781 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
1782 | |
1783 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
1784 | goto err_pci_alloc; | |
1785 | } | |
b481de9c ZY |
1786 | |
1787 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
1788 | if (boot_size) { |
1789 | priv->ucode_boot.len = boot_size; | |
98c92211 | 1790 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 1791 | |
90e759d1 TW |
1792 | if (!priv->ucode_boot.v_addr) |
1793 | goto err_pci_alloc; | |
1794 | } | |
b481de9c ZY |
1795 | |
1796 | /* Copy images into buffers for card's bus-master reads ... */ | |
1797 | ||
1798 | /* Runtime instructions (first block of data in file) */ | |
1799 | src = &ucode->data[0]; | |
1800 | len = priv->ucode_code.len; | |
90e759d1 | 1801 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
1802 | memcpy(priv->ucode_code.v_addr, src, len); |
1803 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
1804 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
1805 | ||
1806 | /* Runtime data (2nd block) | |
5b9f8cd3 | 1807 | * NOTE: Copy into backup buffer will be done in iwl_up() */ |
b481de9c ZY |
1808 | src = &ucode->data[inst_size]; |
1809 | len = priv->ucode_data.len; | |
90e759d1 | 1810 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
1811 | memcpy(priv->ucode_data.v_addr, src, len); |
1812 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
1813 | ||
1814 | /* Initialization instructions (3rd block) */ | |
1815 | if (init_size) { | |
1816 | src = &ucode->data[inst_size + data_size]; | |
1817 | len = priv->ucode_init.len; | |
90e759d1 TW |
1818 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
1819 | len); | |
b481de9c ZY |
1820 | memcpy(priv->ucode_init.v_addr, src, len); |
1821 | } | |
1822 | ||
1823 | /* Initialization data (4th block) */ | |
1824 | if (init_data_size) { | |
1825 | src = &ucode->data[inst_size + data_size + init_size]; | |
1826 | len = priv->ucode_init_data.len; | |
90e759d1 TW |
1827 | IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n", |
1828 | len); | |
b481de9c ZY |
1829 | memcpy(priv->ucode_init_data.v_addr, src, len); |
1830 | } | |
1831 | ||
1832 | /* Bootstrap instructions (5th block) */ | |
1833 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
1834 | len = priv->ucode_boot.len; | |
90e759d1 | 1835 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len); |
b481de9c ZY |
1836 | memcpy(priv->ucode_boot.v_addr, src, len); |
1837 | ||
1838 | /* We have our copies now, allow OS release its copies */ | |
1839 | release_firmware(ucode_raw); | |
1840 | return 0; | |
1841 | ||
1842 | err_pci_alloc: | |
1843 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 1844 | ret = -ENOMEM; |
5b9f8cd3 | 1845 | iwl_dealloc_ucode_pci(priv); |
b481de9c ZY |
1846 | |
1847 | err_release: | |
1848 | release_firmware(ucode_raw); | |
1849 | ||
1850 | error: | |
90e759d1 | 1851 | return ret; |
b481de9c ZY |
1852 | } |
1853 | ||
ada17513 MA |
1854 | /* temporary */ |
1855 | static int iwl_mac_beacon_update(struct ieee80211_hw *hw, | |
1856 | struct sk_buff *skb); | |
1857 | ||
b481de9c | 1858 | /** |
4a4a9e81 | 1859 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 1860 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 1861 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 1862 | */ |
4a4a9e81 | 1863 | static void iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 1864 | { |
57aab75a | 1865 | int ret = 0; |
b481de9c ZY |
1866 | |
1867 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
1868 | ||
1869 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
1870 | /* We had an error bringing up the hardware, so take it | |
1871 | * all the way back down so we can try again */ | |
1872 | IWL_DEBUG_INFO("Alive failed.\n"); | |
1873 | goto restart; | |
1874 | } | |
1875 | ||
1876 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
1877 | * This is a paranoid check, because we would not have gotten the | |
1878 | * "runtime" alive if code weren't properly loaded. */ | |
b0692f2f | 1879 | if (iwl_verify_ucode(priv)) { |
b481de9c ZY |
1880 | /* Runtime instruction load was bad; |
1881 | * take it all the way back down so we can try again */ | |
1882 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
1883 | goto restart; | |
1884 | } | |
1885 | ||
37deb2a0 | 1886 | iwl_clear_stations_table(priv); |
57aab75a TW |
1887 | ret = priv->cfg->ops->lib->alive_notify(priv); |
1888 | if (ret) { | |
b481de9c | 1889 | IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n", |
57aab75a | 1890 | ret); |
b481de9c ZY |
1891 | goto restart; |
1892 | } | |
1893 | ||
5b9f8cd3 | 1894 | /* After the ALIVE response, we can send host commands to the uCode */ |
b481de9c ZY |
1895 | set_bit(STATUS_ALIVE, &priv->status); |
1896 | ||
fee1247a | 1897 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
1898 | return; |
1899 | ||
36d6825b | 1900 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
1901 | |
1902 | priv->active_rate = priv->rates_mask; | |
1903 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
1904 | ||
3109ece1 | 1905 | if (iwl_is_associated(priv)) { |
c1adf9fb GG |
1906 | struct iwl_rxon_cmd *active_rxon = |
1907 | (struct iwl_rxon_cmd *)&priv->active_rxon; | |
b481de9c ZY |
1908 | |
1909 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
1910 | sizeof(priv->staging_rxon)); | |
1911 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1912 | } else { | |
1913 | /* Initialize our rx_config data */ | |
5b9f8cd3 | 1914 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
1915 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
1916 | } | |
1917 | ||
9fbab516 | 1918 | /* Configure Bluetooth device coexistence support */ |
5b9f8cd3 | 1919 | iwl_send_bt_config(priv); |
b481de9c | 1920 | |
4a4a9e81 TW |
1921 | iwl_reset_run_time_calib(priv); |
1922 | ||
b481de9c | 1923 | /* Configure the adapter for unassociated operation */ |
5b9f8cd3 | 1924 | iwl_commit_rxon(priv); |
b481de9c ZY |
1925 | |
1926 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 1927 | iwl_rf_kill_ct_config(priv); |
5a66926a | 1928 | |
fe00b5a5 RC |
1929 | iwl_leds_register(priv); |
1930 | ||
b481de9c | 1931 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 1932 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 1933 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
1934 | |
1935 | if (priv->error_recovering) | |
5b9f8cd3 | 1936 | iwl_error_recovery(priv); |
b481de9c | 1937 | |
58d0f361 | 1938 | iwl_power_update_mode(priv, 1); |
c46fbefa | 1939 | |
ada17513 MA |
1940 | /* reassociate for ADHOC mode */ |
1941 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
1942 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
1943 | priv->vif); | |
1944 | if (beacon) | |
1945 | iwl_mac_beacon_update(priv->hw, beacon); | |
1946 | } | |
1947 | ||
1948 | ||
c46fbefa | 1949 | if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) |
5b9f8cd3 | 1950 | iwl_set_mode(priv, priv->iw_mode); |
c46fbefa | 1951 | |
b481de9c ZY |
1952 | return; |
1953 | ||
1954 | restart: | |
1955 | queue_work(priv->workqueue, &priv->restart); | |
1956 | } | |
1957 | ||
4e39317d | 1958 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 1959 | |
5b9f8cd3 | 1960 | static void __iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
1961 | { |
1962 | unsigned long flags; | |
1963 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c ZY |
1964 | |
1965 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
1966 | ||
b481de9c ZY |
1967 | if (!exit_pending) |
1968 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
1969 | ||
ab53d8af MA |
1970 | iwl_leds_unregister(priv); |
1971 | ||
37deb2a0 | 1972 | iwl_clear_stations_table(priv); |
b481de9c ZY |
1973 | |
1974 | /* Unblock any waiting calls */ | |
1975 | wake_up_interruptible_all(&priv->wait_command_queue); | |
1976 | ||
b481de9c ZY |
1977 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
1978 | * exiting the module */ | |
1979 | if (!exit_pending) | |
1980 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
1981 | ||
1982 | /* stop and reset the on-board processor */ | |
3395f6e9 | 1983 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
1984 | |
1985 | /* tell the device to stop sending interrupts */ | |
0359facc | 1986 | spin_lock_irqsave(&priv->lock, flags); |
5b9f8cd3 | 1987 | iwl_disable_interrupts(priv); |
0359facc MA |
1988 | spin_unlock_irqrestore(&priv->lock, flags); |
1989 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
1990 | |
1991 | if (priv->mac80211_registered) | |
1992 | ieee80211_stop_queues(priv->hw); | |
1993 | ||
5b9f8cd3 | 1994 | /* If we have not previously called iwl_init() then |
b481de9c | 1995 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
fee1247a | 1996 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
1997 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
1998 | STATUS_RF_KILL_HW | | |
1999 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
2000 | STATUS_RF_KILL_SW | | |
9788864e RC |
2001 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2002 | STATUS_GEO_CONFIGURED | | |
b481de9c | 2003 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
052ec3f1 MA |
2004 | STATUS_IN_SUSPEND | |
2005 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2006 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
2007 | goto exit; |
2008 | } | |
2009 | ||
2010 | /* ...otherwise clear out all the status bits but the RF Kill and | |
2011 | * SUSPEND bits and continue taking the NIC down. */ | |
2012 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
2013 | STATUS_RF_KILL_HW | | |
2014 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
2015 | STATUS_RF_KILL_SW | | |
9788864e RC |
2016 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2017 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
2018 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
2019 | STATUS_IN_SUSPEND | | |
2020 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
052ec3f1 MA |
2021 | STATUS_FW_ERROR | |
2022 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2023 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
2024 | |
2025 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 2026 | iwl_clear_bit(priv, CSR_GP_CNTRL, |
9fbab516 | 2027 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
2028 | spin_unlock_irqrestore(&priv->lock, flags); |
2029 | ||
da1bc453 | 2030 | iwl_txq_ctx_stop(priv); |
b3bbacb7 | 2031 | iwl_rxq_stop(priv); |
b481de9c ZY |
2032 | |
2033 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
2034 | if (!iwl_grab_nic_access(priv)) { |
2035 | iwl_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 2036 | APMG_CLK_VAL_DMA_CLK_RQT); |
3395f6e9 | 2037 | iwl_release_nic_access(priv); |
b481de9c ZY |
2038 | } |
2039 | spin_unlock_irqrestore(&priv->lock, flags); | |
2040 | ||
2041 | udelay(5); | |
2042 | ||
7f066108 | 2043 | /* FIXME: apm_ops.suspend(priv) */ |
d535311e GG |
2044 | if (exit_pending || test_bit(STATUS_IN_SUSPEND, &priv->status)) |
2045 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
2046 | else | |
2047 | priv->cfg->ops->lib->apm_ops.reset(priv); | |
b481de9c | 2048 | exit: |
885ba202 | 2049 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
2050 | |
2051 | if (priv->ibss_beacon) | |
2052 | dev_kfree_skb(priv->ibss_beacon); | |
2053 | priv->ibss_beacon = NULL; | |
2054 | ||
2055 | /* clear out any free frames */ | |
fcab423d | 2056 | iwl_clear_free_frames(priv); |
b481de9c ZY |
2057 | } |
2058 | ||
5b9f8cd3 | 2059 | static void iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
2060 | { |
2061 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2062 | __iwl_down(priv); |
b481de9c | 2063 | mutex_unlock(&priv->mutex); |
b24d22b1 | 2064 | |
4e39317d | 2065 | iwl_cancel_deferred_work(priv); |
b481de9c ZY |
2066 | } |
2067 | ||
2068 | #define MAX_HW_RESTARTS 5 | |
2069 | ||
5b9f8cd3 | 2070 | static int __iwl_up(struct iwl_priv *priv) |
b481de9c | 2071 | { |
57aab75a TW |
2072 | int i; |
2073 | int ret; | |
b481de9c ZY |
2074 | |
2075 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
2076 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
2077 | return -EIO; | |
2078 | } | |
2079 | ||
e903fbd4 RC |
2080 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
2081 | IWL_ERROR("ucode not available for device bringup\n"); | |
2082 | return -EIO; | |
2083 | } | |
2084 | ||
e655b9f0 | 2085 | /* If platform's RF_KILL switch is NOT set to KILL */ |
c1842d61 | 2086 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
e655b9f0 | 2087 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
3bff19c2 | 2088 | else |
e655b9f0 | 2089 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
3bff19c2 | 2090 | |
c1842d61 | 2091 | if (iwl_is_rfkill(priv)) { |
5b9f8cd3 | 2092 | iwl_enable_interrupts(priv); |
3bff19c2 EG |
2093 | IWL_WARNING("Radio disabled by %s RF Kill switch\n", |
2094 | test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW"); | |
c1842d61 | 2095 | return 0; |
b481de9c ZY |
2096 | } |
2097 | ||
3395f6e9 | 2098 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 2099 | |
1053d35f | 2100 | ret = iwl_hw_nic_init(priv); |
57aab75a TW |
2101 | if (ret) { |
2102 | IWL_ERROR("Unable to init nic\n"); | |
2103 | return ret; | |
b481de9c ZY |
2104 | } |
2105 | ||
2106 | /* make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2107 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2108 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
2109 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
2110 | ||
2111 | /* clear (again), then enable host interrupts */ | |
3395f6e9 | 2112 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
5b9f8cd3 | 2113 | iwl_enable_interrupts(priv); |
b481de9c ZY |
2114 | |
2115 | /* really make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2116 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2117 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
2118 | |
2119 | /* Copy original ucode data image from disk into backup cache. | |
2120 | * This will be used to initialize the on-board processor's | |
2121 | * data SRAM for a clean start when the runtime program first loads. */ | |
2122 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 2123 | priv->ucode_data.len); |
b481de9c | 2124 | |
b481de9c ZY |
2125 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
2126 | ||
37deb2a0 | 2127 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2128 | |
2129 | /* load bootstrap state machine, | |
2130 | * load bootstrap program into processor's memory, | |
2131 | * prepare to load the "initialize" uCode */ | |
57aab75a | 2132 | ret = priv->cfg->ops->lib->load_ucode(priv); |
b481de9c | 2133 | |
57aab75a TW |
2134 | if (ret) { |
2135 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret); | |
b481de9c ZY |
2136 | continue; |
2137 | } | |
2138 | ||
f3d5b45b EG |
2139 | /* Clear out the uCode error bit if it is set */ |
2140 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
2141 | ||
b481de9c | 2142 | /* start card; "initialize" will load runtime ucode */ |
5b9f8cd3 | 2143 | iwl_nic_start(priv); |
b481de9c | 2144 | |
b481de9c ZY |
2145 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
2146 | ||
2147 | return 0; | |
2148 | } | |
2149 | ||
2150 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5b9f8cd3 | 2151 | __iwl_down(priv); |
64e72c3e | 2152 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
2153 | |
2154 | /* tried to restart and config the device for as long as our | |
2155 | * patience could withstand */ | |
2156 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
2157 | return -EIO; | |
2158 | } | |
2159 | ||
2160 | ||
2161 | /***************************************************************************** | |
2162 | * | |
2163 | * Workqueue callbacks | |
2164 | * | |
2165 | *****************************************************************************/ | |
2166 | ||
4a4a9e81 | 2167 | static void iwl_bg_init_alive_start(struct work_struct *data) |
b481de9c | 2168 | { |
c79dd5b5 TW |
2169 | struct iwl_priv *priv = |
2170 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
2171 | |
2172 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2173 | return; | |
2174 | ||
2175 | mutex_lock(&priv->mutex); | |
f3ccc08c | 2176 | priv->cfg->ops->lib->init_alive_start(priv); |
b481de9c ZY |
2177 | mutex_unlock(&priv->mutex); |
2178 | } | |
2179 | ||
4a4a9e81 | 2180 | static void iwl_bg_alive_start(struct work_struct *data) |
b481de9c | 2181 | { |
c79dd5b5 TW |
2182 | struct iwl_priv *priv = |
2183 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
2184 | |
2185 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2186 | return; | |
2187 | ||
2188 | mutex_lock(&priv->mutex); | |
4a4a9e81 | 2189 | iwl_alive_start(priv); |
b481de9c ZY |
2190 | mutex_unlock(&priv->mutex); |
2191 | } | |
2192 | ||
5b9f8cd3 | 2193 | static void iwl_bg_rf_kill(struct work_struct *work) |
b481de9c | 2194 | { |
c79dd5b5 | 2195 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); |
b481de9c ZY |
2196 | |
2197 | wake_up_interruptible(&priv->wait_command_queue); | |
2198 | ||
2199 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2200 | return; | |
2201 | ||
2202 | mutex_lock(&priv->mutex); | |
2203 | ||
fee1247a | 2204 | if (!iwl_is_rfkill(priv)) { |
f3d67999 | 2205 | IWL_DEBUG(IWL_DL_RF_KILL, |
b481de9c ZY |
2206 | "HW and/or SW RF Kill no longer active, restarting " |
2207 | "device\n"); | |
2208 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2209 | queue_work(priv->workqueue, &priv->restart); | |
2210 | } else { | |
ad97edd2 MA |
2211 | /* make sure mac80211 stop sending Tx frame */ |
2212 | if (priv->mac80211_registered) | |
2213 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
2214 | |
2215 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
2216 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2217 | "disabled by SW switch\n"); | |
2218 | else | |
2219 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
2220 | "Kill switch must be turned off for " | |
2221 | "wireless networking to work.\n"); | |
2222 | } | |
2223 | mutex_unlock(&priv->mutex); | |
80fcc9e2 | 2224 | iwl_rfkill_set_hw_state(priv); |
b481de9c ZY |
2225 | } |
2226 | ||
5b9f8cd3 | 2227 | static void iwl_bg_set_monitor(struct work_struct *work) |
4419e39b AK |
2228 | { |
2229 | struct iwl_priv *priv = container_of(work, | |
2230 | struct iwl_priv, set_monitor); | |
c46fbefa | 2231 | int ret; |
4419e39b AK |
2232 | |
2233 | IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n"); | |
2234 | ||
2235 | mutex_lock(&priv->mutex); | |
2236 | ||
5b9f8cd3 | 2237 | ret = iwl_set_mode(priv, NL80211_IFTYPE_MONITOR); |
c46fbefa AK |
2238 | if (ret) { |
2239 | if (ret == -EAGAIN) | |
2240 | IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); | |
2241 | else | |
5b9f8cd3 | 2242 | IWL_ERROR("iwl_set_mode() failed ret = %d\n", ret); |
c46fbefa | 2243 | } |
4419e39b AK |
2244 | |
2245 | mutex_unlock(&priv->mutex); | |
2246 | } | |
2247 | ||
16e727e8 EG |
2248 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
2249 | { | |
2250 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
2251 | run_time_calib_work); | |
2252 | ||
2253 | mutex_lock(&priv->mutex); | |
2254 | ||
2255 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
2256 | test_bit(STATUS_SCANNING, &priv->status)) { | |
2257 | mutex_unlock(&priv->mutex); | |
2258 | return; | |
2259 | } | |
2260 | ||
2261 | if (priv->start_calib) { | |
2262 | iwl_chain_noise_calibration(priv, &priv->statistics); | |
2263 | ||
2264 | iwl_sensitivity_calibration(priv, &priv->statistics); | |
2265 | } | |
2266 | ||
2267 | mutex_unlock(&priv->mutex); | |
2268 | return; | |
2269 | } | |
2270 | ||
5b9f8cd3 | 2271 | static void iwl_bg_up(struct work_struct *data) |
b481de9c | 2272 | { |
c79dd5b5 | 2273 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
2274 | |
2275 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2276 | return; | |
2277 | ||
2278 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2279 | __iwl_up(priv); |
b481de9c | 2280 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 2281 | iwl_rfkill_set_hw_state(priv); |
b481de9c ZY |
2282 | } |
2283 | ||
5b9f8cd3 | 2284 | static void iwl_bg_restart(struct work_struct *data) |
b481de9c | 2285 | { |
c79dd5b5 | 2286 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
2287 | |
2288 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2289 | return; | |
2290 | ||
5b9f8cd3 | 2291 | iwl_down(priv); |
b481de9c ZY |
2292 | queue_work(priv->workqueue, &priv->up); |
2293 | } | |
2294 | ||
5b9f8cd3 | 2295 | static void iwl_bg_rx_replenish(struct work_struct *data) |
b481de9c | 2296 | { |
c79dd5b5 TW |
2297 | struct iwl_priv *priv = |
2298 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
2299 | |
2300 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2301 | return; | |
2302 | ||
2303 | mutex_lock(&priv->mutex); | |
a55360e4 | 2304 | iwl_rx_replenish(priv); |
b481de9c ZY |
2305 | mutex_unlock(&priv->mutex); |
2306 | } | |
2307 | ||
7878a5a4 MA |
2308 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
2309 | ||
5b9f8cd3 | 2310 | static void iwl_post_associate(struct iwl_priv *priv) |
b481de9c | 2311 | { |
b481de9c | 2312 | struct ieee80211_conf *conf = NULL; |
857485c0 | 2313 | int ret = 0; |
1ff50bda | 2314 | unsigned long flags; |
b481de9c | 2315 | |
05c914fe | 2316 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
3ac7f146 | 2317 | IWL_ERROR("%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
2318 | return; |
2319 | } | |
2320 | ||
e174961c JB |
2321 | IWL_DEBUG_ASSOC("Associated as %d to: %pM\n", |
2322 | priv->assoc_id, priv->active_rxon.bssid_addr); | |
b481de9c ZY |
2323 | |
2324 | ||
2325 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2326 | return; | |
2327 | ||
b481de9c | 2328 | |
508e32e1 | 2329 | if (!priv->vif || !priv->is_open) |
948c171c | 2330 | return; |
508e32e1 | 2331 | |
c90a74ba | 2332 | iwl_power_cancel_timeout(priv); |
2a421b91 | 2333 | iwl_scan_cancel_timeout(priv, 200); |
052c4b9f | 2334 | |
b481de9c ZY |
2335 | conf = ieee80211_get_hw_conf(priv->hw); |
2336 | ||
2337 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 2338 | iwl_commit_rxon(priv); |
b481de9c | 2339 | |
3195c1f3 | 2340 | iwl_setup_rxon_timing(priv); |
857485c0 | 2341 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2342 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2343 | if (ret) |
b481de9c ZY |
2344 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
2345 | "Attempting to continue.\n"); | |
2346 | ||
2347 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
2348 | ||
42eb7c64 | 2349 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
4f85f5b3 | 2350 | |
c7de35cd | 2351 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
2352 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
2353 | ||
2354 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
2355 | priv->assoc_id, priv->beacon_int); | |
2356 | ||
2357 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2358 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2359 | else | |
2360 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2361 | ||
2362 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2363 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2364 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2365 | else | |
2366 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2367 | ||
05c914fe | 2368 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2369 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
2370 | ||
2371 | } | |
2372 | ||
5b9f8cd3 | 2373 | iwl_commit_rxon(priv); |
b481de9c ZY |
2374 | |
2375 | switch (priv->iw_mode) { | |
05c914fe | 2376 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2377 | break; |
2378 | ||
05c914fe | 2379 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 2380 | |
c46fbefa AK |
2381 | /* assume default assoc id */ |
2382 | priv->assoc_id = 1; | |
b481de9c | 2383 | |
4f40e4d9 | 2384 | iwl_rxon_add_station(priv, priv->bssid, 0); |
5b9f8cd3 | 2385 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
2386 | |
2387 | break; | |
2388 | ||
2389 | default: | |
2390 | IWL_ERROR("%s Should not be called in %d mode\n", | |
3ac7f146 | 2391 | __func__, priv->iw_mode); |
b481de9c ZY |
2392 | break; |
2393 | } | |
2394 | ||
05c914fe | 2395 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2396 | priv->assoc_station_added = 1; |
2397 | ||
1ff50bda EG |
2398 | spin_lock_irqsave(&priv->lock, flags); |
2399 | iwl_activate_qos(priv, 0); | |
2400 | spin_unlock_irqrestore(&priv->lock, flags); | |
292ae174 | 2401 | |
04816448 GE |
2402 | /* the chain noise calibration will enabled PM upon completion |
2403 | * If chain noise has already been run, then we need to enable | |
2404 | * power management here */ | |
2405 | if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) | |
2406 | iwl_power_enable_management(priv); | |
c90a74ba EG |
2407 | |
2408 | /* Enable Rx differential gain and sensitivity calibrations */ | |
2409 | iwl_chain_noise_reset(priv); | |
2410 | priv->start_calib = 1; | |
2411 | ||
508e32e1 RC |
2412 | } |
2413 | ||
b481de9c ZY |
2414 | /***************************************************************************** |
2415 | * | |
2416 | * mac80211 entry point functions | |
2417 | * | |
2418 | *****************************************************************************/ | |
2419 | ||
154b25ce | 2420 | #define UCODE_READY_TIMEOUT (4 * HZ) |
5a66926a | 2421 | |
5b9f8cd3 | 2422 | static int iwl_mac_start(struct ieee80211_hw *hw) |
b481de9c | 2423 | { |
c79dd5b5 | 2424 | struct iwl_priv *priv = hw->priv; |
5a66926a | 2425 | int ret; |
cf88c433 | 2426 | u16 pci_cmd; |
b481de9c ZY |
2427 | |
2428 | IWL_DEBUG_MAC80211("enter\n"); | |
2429 | ||
5a66926a ZY |
2430 | if (pci_enable_device(priv->pci_dev)) { |
2431 | IWL_ERROR("Fail to pci_enable_device\n"); | |
2432 | return -ENODEV; | |
2433 | } | |
2434 | pci_restore_state(priv->pci_dev); | |
2435 | pci_enable_msi(priv->pci_dev); | |
2436 | ||
cf88c433 TW |
2437 | /* enable interrupts if needed: hw bug w/a */ |
2438 | pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); | |
2439 | if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { | |
2440 | pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; | |
2441 | pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd); | |
2442 | } | |
2443 | ||
5b9f8cd3 | 2444 | ret = request_irq(priv->pci_dev->irq, iwl_isr, IRQF_SHARED, |
5a66926a ZY |
2445 | DRV_NAME, priv); |
2446 | if (ret) { | |
2447 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
2448 | goto out_disable_msi; | |
2449 | } | |
2450 | ||
b481de9c ZY |
2451 | /* we should be verifying the device is ready to be opened */ |
2452 | mutex_lock(&priv->mutex); | |
2453 | ||
c1adf9fb | 2454 | memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); |
5a66926a ZY |
2455 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
2456 | * ucode filename and max sizes are card-specific. */ | |
b481de9c | 2457 | |
5a66926a | 2458 | if (!priv->ucode_code.len) { |
5b9f8cd3 | 2459 | ret = iwl_read_ucode(priv); |
5a66926a ZY |
2460 | if (ret) { |
2461 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
2462 | mutex_unlock(&priv->mutex); | |
2463 | goto out_release_irq; | |
2464 | } | |
2465 | } | |
b481de9c | 2466 | |
5b9f8cd3 | 2467 | ret = __iwl_up(priv); |
5a66926a | 2468 | |
b481de9c | 2469 | mutex_unlock(&priv->mutex); |
5a66926a | 2470 | |
80fcc9e2 AG |
2471 | iwl_rfkill_set_hw_state(priv); |
2472 | ||
e655b9f0 ZY |
2473 | if (ret) |
2474 | goto out_release_irq; | |
2475 | ||
c1842d61 TW |
2476 | if (iwl_is_rfkill(priv)) |
2477 | goto out; | |
2478 | ||
e655b9f0 ZY |
2479 | IWL_DEBUG_INFO("Start UP work done.\n"); |
2480 | ||
2481 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
2482 | return 0; | |
2483 | ||
fe9b6b72 | 2484 | /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from |
5a66926a | 2485 | * mac80211 will not be run successfully. */ |
154b25ce EG |
2486 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
2487 | test_bit(STATUS_READY, &priv->status), | |
2488 | UCODE_READY_TIMEOUT); | |
2489 | if (!ret) { | |
2490 | if (!test_bit(STATUS_READY, &priv->status)) { | |
2491 | IWL_ERROR("START_ALIVE timeout after %dms.\n", | |
2492 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
2493 | ret = -ETIMEDOUT; | |
2494 | goto out_release_irq; | |
5a66926a | 2495 | } |
fe9b6b72 | 2496 | } |
0a078ffa | 2497 | |
c1842d61 | 2498 | out: |
0a078ffa | 2499 | priv->is_open = 1; |
b481de9c ZY |
2500 | IWL_DEBUG_MAC80211("leave\n"); |
2501 | return 0; | |
5a66926a ZY |
2502 | |
2503 | out_release_irq: | |
2504 | free_irq(priv->pci_dev->irq, priv); | |
2505 | out_disable_msi: | |
2506 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
2507 | pci_disable_device(priv->pci_dev); |
2508 | priv->is_open = 0; | |
2509 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 2510 | return ret; |
b481de9c ZY |
2511 | } |
2512 | ||
5b9f8cd3 | 2513 | static void iwl_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 2514 | { |
c79dd5b5 | 2515 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2516 | |
2517 | IWL_DEBUG_MAC80211("enter\n"); | |
948c171c | 2518 | |
e655b9f0 ZY |
2519 | if (!priv->is_open) { |
2520 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
2521 | return; | |
2522 | } | |
2523 | ||
b481de9c | 2524 | priv->is_open = 0; |
5a66926a | 2525 | |
fee1247a | 2526 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
2527 | /* stop mac, cancel any scan request and clear |
2528 | * RXON_FILTER_ASSOC_MSK BIT | |
2529 | */ | |
5a66926a | 2530 | mutex_lock(&priv->mutex); |
2a421b91 | 2531 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 2532 | mutex_unlock(&priv->mutex); |
fde3571f MA |
2533 | } |
2534 | ||
5b9f8cd3 | 2535 | iwl_down(priv); |
5a66926a ZY |
2536 | |
2537 | flush_workqueue(priv->workqueue); | |
2538 | free_irq(priv->pci_dev->irq, priv); | |
2539 | pci_disable_msi(priv->pci_dev); | |
2540 | pci_save_state(priv->pci_dev); | |
2541 | pci_disable_device(priv->pci_dev); | |
948c171c | 2542 | |
b481de9c | 2543 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
2544 | } |
2545 | ||
5b9f8cd3 | 2546 | static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 2547 | { |
c79dd5b5 | 2548 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2549 | |
f3674227 | 2550 | IWL_DEBUG_MACDUMP("enter\n"); |
b481de9c | 2551 | |
b481de9c | 2552 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 2553 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 2554 | |
e039fa4a | 2555 | if (iwl_tx_skb(priv, skb)) |
b481de9c ZY |
2556 | dev_kfree_skb_any(skb); |
2557 | ||
f3674227 | 2558 | IWL_DEBUG_MACDUMP("leave\n"); |
b481de9c ZY |
2559 | return 0; |
2560 | } | |
2561 | ||
5b9f8cd3 | 2562 | static int iwl_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
2563 | struct ieee80211_if_init_conf *conf) |
2564 | { | |
c79dd5b5 | 2565 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2566 | unsigned long flags; |
2567 | ||
32bfd35d | 2568 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 2569 | |
32bfd35d JB |
2570 | if (priv->vif) { |
2571 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
75849d28 | 2572 | return -EOPNOTSUPP; |
b481de9c ZY |
2573 | } |
2574 | ||
2575 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 2576 | priv->vif = conf->vif; |
60294de3 | 2577 | priv->iw_mode = conf->type; |
b481de9c ZY |
2578 | |
2579 | spin_unlock_irqrestore(&priv->lock, flags); | |
2580 | ||
2581 | mutex_lock(&priv->mutex); | |
864792e3 TW |
2582 | |
2583 | if (conf->mac_addr) { | |
e174961c | 2584 | IWL_DEBUG_MAC80211("Set %pM\n", conf->mac_addr); |
864792e3 TW |
2585 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
2586 | } | |
b481de9c | 2587 | |
5b9f8cd3 | 2588 | if (iwl_set_mode(priv, conf->type) == -EAGAIN) |
c46fbefa AK |
2589 | /* we are not ready, will run again when ready */ |
2590 | set_bit(STATUS_MODE_PENDING, &priv->status); | |
5a66926a | 2591 | |
b481de9c ZY |
2592 | mutex_unlock(&priv->mutex); |
2593 | ||
5a66926a | 2594 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
2595 | return 0; |
2596 | } | |
2597 | ||
2598 | /** | |
5b9f8cd3 | 2599 | * iwl_mac_config - mac80211 config callback |
b481de9c ZY |
2600 | * |
2601 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
2602 | * be set inappropriately and the driver currently sets the hardware up to | |
2603 | * use it whenever needed. | |
2604 | */ | |
5b9f8cd3 | 2605 | static int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) |
b481de9c | 2606 | { |
c79dd5b5 | 2607 | struct iwl_priv *priv = hw->priv; |
bf85ea4f | 2608 | const struct iwl_channel_info *ch_info; |
e8975581 | 2609 | struct ieee80211_conf *conf = &hw->conf; |
b481de9c | 2610 | unsigned long flags; |
76bb77e0 | 2611 | int ret = 0; |
82a66bbb | 2612 | u16 channel; |
b481de9c ZY |
2613 | |
2614 | mutex_lock(&priv->mutex); | |
8318d78a | 2615 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 2616 | |
ae5eb026 JB |
2617 | priv->current_ht_config.is_ht = conf->ht.enabled; |
2618 | ||
14a08a7f | 2619 | if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) { |
64e72c3e | 2620 | IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n"); |
14a08a7f | 2621 | goto out; |
64e72c3e MA |
2622 | } |
2623 | ||
14a08a7f EG |
2624 | if (!conf->radio_enabled) |
2625 | iwl_radio_kill_sw_disable_radio(priv); | |
2626 | ||
fee1247a | 2627 | if (!iwl_is_ready(priv)) { |
b481de9c | 2628 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
2629 | ret = -EIO; |
2630 | goto out; | |
b481de9c ZY |
2631 | } |
2632 | ||
1ea87396 | 2633 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
b481de9c | 2634 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 | 2635 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
b481de9c | 2636 | mutex_unlock(&priv->mutex); |
a0646470 | 2637 | return 0; |
b481de9c ZY |
2638 | } |
2639 | ||
82a66bbb TW |
2640 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); |
2641 | ch_info = iwl_get_channel_info(priv, conf->channel->band, channel); | |
b481de9c | 2642 | if (!is_channel_valid(ch_info)) { |
b481de9c | 2643 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
76bb77e0 ZY |
2644 | ret = -EINVAL; |
2645 | goto out; | |
b481de9c ZY |
2646 | } |
2647 | ||
05c914fe | 2648 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
398f9e76 AK |
2649 | !is_channel_ibss(ch_info)) { |
2650 | IWL_ERROR("channel %d in band %d not IBSS channel\n", | |
2651 | conf->channel->hw_value, conf->channel->band); | |
2652 | ret = -EINVAL; | |
2653 | goto out; | |
2654 | } | |
2655 | ||
82a66bbb TW |
2656 | spin_lock_irqsave(&priv->lock, flags); |
2657 | ||
b5d7be5e | 2658 | |
78330fdd | 2659 | /* if we are switching from ht to 2.4 clear flags |
b481de9c ZY |
2660 | * from any ht related info since 2.4 does not |
2661 | * support ht */ | |
82a66bbb | 2662 | if ((le16_to_cpu(priv->staging_rxon.channel) != channel) |
b481de9c ZY |
2663 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH |
2664 | && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) | |
2665 | #endif | |
2666 | ) | |
2667 | priv->staging_rxon.flags = 0; | |
b481de9c | 2668 | |
17e72782 | 2669 | iwl_set_rxon_channel(priv, conf->channel); |
b481de9c | 2670 | |
82a66bbb | 2671 | iwl_set_flags_for_band(priv, conf->channel->band); |
b481de9c ZY |
2672 | |
2673 | /* The list of supported rates and rate mask can be different | |
8318d78a | 2674 | * for each band; since the band may have changed, reset |
b481de9c | 2675 | * the rate mask to what mac80211 lists */ |
5b9f8cd3 | 2676 | iwl_set_rate(priv); |
b481de9c ZY |
2677 | |
2678 | spin_unlock_irqrestore(&priv->lock, flags); | |
2679 | ||
2680 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
2681 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
5b9f8cd3 | 2682 | iwl_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 2683 | goto out; |
b481de9c ZY |
2684 | } |
2685 | #endif | |
2686 | ||
b481de9c ZY |
2687 | if (!conf->radio_enabled) { |
2688 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 2689 | goto out; |
b481de9c ZY |
2690 | } |
2691 | ||
fee1247a | 2692 | if (iwl_is_rfkill(priv)) { |
b481de9c | 2693 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
2694 | ret = -EIO; |
2695 | goto out; | |
b481de9c ZY |
2696 | } |
2697 | ||
e602cb18 EK |
2698 | if (conf->flags & IEEE80211_CONF_PS) |
2699 | ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3); | |
2700 | else | |
2701 | ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM); | |
2702 | if (ret) | |
2703 | IWL_DEBUG_MAC80211("Error setting power level\n"); | |
2704 | ||
630fe9b6 TW |
2705 | IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n", |
2706 | priv->tx_power_user_lmt, conf->power_level); | |
2707 | ||
2708 | iwl_set_tx_power(priv, conf->power_level, false); | |
2709 | ||
5b9f8cd3 | 2710 | iwl_set_rate(priv); |
b481de9c ZY |
2711 | |
2712 | if (memcmp(&priv->active_rxon, | |
2713 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
5b9f8cd3 | 2714 | iwl_commit_rxon(priv); |
b481de9c ZY |
2715 | else |
2716 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
2717 | ||
2718 | IWL_DEBUG_MAC80211("leave\n"); | |
2719 | ||
a0646470 | 2720 | out: |
5a66926a | 2721 | mutex_unlock(&priv->mutex); |
76bb77e0 | 2722 | return ret; |
b481de9c ZY |
2723 | } |
2724 | ||
5b9f8cd3 | 2725 | static void iwl_config_ap(struct iwl_priv *priv) |
b481de9c | 2726 | { |
857485c0 | 2727 | int ret = 0; |
1ff50bda | 2728 | unsigned long flags; |
b481de9c | 2729 | |
d986bcd1 | 2730 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
2731 | return; |
2732 | ||
2733 | /* The following should be done only at AP bring up */ | |
3195c1f3 | 2734 | if (!iwl_is_associated(priv)) { |
b481de9c ZY |
2735 | |
2736 | /* RXON - unassoc (to set timing command) */ | |
2737 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 2738 | iwl_commit_rxon(priv); |
b481de9c ZY |
2739 | |
2740 | /* RXON Timing */ | |
3195c1f3 | 2741 | iwl_setup_rxon_timing(priv); |
857485c0 | 2742 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2743 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2744 | if (ret) |
b481de9c ZY |
2745 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
2746 | "Attempting to continue.\n"); | |
2747 | ||
c7de35cd | 2748 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
2749 | |
2750 | /* FIXME: what should be the assoc_id for AP? */ | |
2751 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
2752 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2753 | priv->staging_rxon.flags |= | |
2754 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
2755 | else | |
2756 | priv->staging_rxon.flags &= | |
2757 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2758 | ||
2759 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2760 | if (priv->assoc_capability & | |
2761 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2762 | priv->staging_rxon.flags |= | |
2763 | RXON_FLG_SHORT_SLOT_MSK; | |
2764 | else | |
2765 | priv->staging_rxon.flags &= | |
2766 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2767 | ||
05c914fe | 2768 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2769 | priv->staging_rxon.flags &= |
2770 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2771 | } | |
2772 | /* restore RXON assoc */ | |
2773 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 2774 | iwl_commit_rxon(priv); |
1ff50bda EG |
2775 | spin_lock_irqsave(&priv->lock, flags); |
2776 | iwl_activate_qos(priv, 1); | |
2777 | spin_unlock_irqrestore(&priv->lock, flags); | |
4f40e4d9 | 2778 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
e1493deb | 2779 | } |
5b9f8cd3 | 2780 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
2781 | |
2782 | /* FIXME - we need to add code here to detect a totally new | |
2783 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
2784 | * clear sta table, add BCAST sta... */ | |
2785 | } | |
2786 | ||
9d139c81 | 2787 | |
5b9f8cd3 | 2788 | static int iwl_mac_config_interface(struct ieee80211_hw *hw, |
32bfd35d | 2789 | struct ieee80211_vif *vif, |
b481de9c ZY |
2790 | struct ieee80211_if_conf *conf) |
2791 | { | |
c79dd5b5 | 2792 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2793 | int rc; |
2794 | ||
2795 | if (conf == NULL) | |
2796 | return -EIO; | |
2797 | ||
b716bb91 EG |
2798 | if (priv->vif != vif) { |
2799 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
2800 | return 0; |
2801 | } | |
2802 | ||
05c914fe | 2803 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
9d139c81 JB |
2804 | conf->changed & IEEE80211_IFCC_BEACON) { |
2805 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); | |
2806 | if (!beacon) | |
2807 | return -ENOMEM; | |
ada17513 | 2808 | mutex_lock(&priv->mutex); |
5b9f8cd3 | 2809 | rc = iwl_mac_beacon_update(hw, beacon); |
ada17513 | 2810 | mutex_unlock(&priv->mutex); |
9d139c81 JB |
2811 | if (rc) |
2812 | return rc; | |
2813 | } | |
2814 | ||
fee1247a | 2815 | if (!iwl_is_alive(priv)) |
5a66926a ZY |
2816 | return -EAGAIN; |
2817 | ||
b481de9c ZY |
2818 | mutex_lock(&priv->mutex); |
2819 | ||
b481de9c | 2820 | if (conf->bssid) |
e174961c | 2821 | IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid); |
b481de9c | 2822 | |
4150c572 JB |
2823 | /* |
2824 | * very dubious code was here; the probe filtering flag is never set: | |
2825 | * | |
b481de9c ZY |
2826 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
2827 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 2828 | */ |
b481de9c | 2829 | |
05c914fe | 2830 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
2831 | if (!conf->bssid) { |
2832 | conf->bssid = priv->mac_addr; | |
2833 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
e174961c JB |
2834 | IWL_DEBUG_MAC80211("bssid was set to: %pM\n", |
2835 | conf->bssid); | |
b481de9c ZY |
2836 | } |
2837 | if (priv->ibss_beacon) | |
2838 | dev_kfree_skb(priv->ibss_beacon); | |
2839 | ||
9d139c81 | 2840 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
b481de9c ZY |
2841 | } |
2842 | ||
fee1247a | 2843 | if (iwl_is_rfkill(priv)) |
fde3571f MA |
2844 | goto done; |
2845 | ||
b481de9c ZY |
2846 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
2847 | !is_multicast_ether_addr(conf->bssid)) { | |
2848 | /* If there is currently a HW scan going on in the background | |
2849 | * then we need to cancel it else the RXON below will fail. */ | |
2a421b91 | 2850 | if (iwl_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
2851 | IWL_WARNING("Aborted scan still in progress " |
2852 | "after 100ms\n"); | |
2853 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2854 | mutex_unlock(&priv->mutex); | |
2855 | return -EAGAIN; | |
2856 | } | |
2857 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
2858 | ||
2859 | /* TODO: Audit driver for usage of these members and see | |
2860 | * if mac80211 deprecates them (priv->bssid looks like it | |
2861 | * shouldn't be there, but I haven't scanned the IBSS code | |
2862 | * to verify) - jpk */ | |
2863 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
2864 | ||
05c914fe | 2865 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
5b9f8cd3 | 2866 | iwl_config_ap(priv); |
b481de9c | 2867 | else { |
5b9f8cd3 | 2868 | rc = iwl_commit_rxon(priv); |
05c914fe | 2869 | if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) |
4f40e4d9 | 2870 | iwl_rxon_add_station( |
b481de9c ZY |
2871 | priv, priv->active_rxon.bssid_addr, 1); |
2872 | } | |
2873 | ||
2874 | } else { | |
2a421b91 | 2875 | iwl_scan_cancel_timeout(priv, 100); |
b481de9c | 2876 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
5b9f8cd3 | 2877 | iwl_commit_rxon(priv); |
b481de9c ZY |
2878 | } |
2879 | ||
fde3571f | 2880 | done: |
b481de9c ZY |
2881 | IWL_DEBUG_MAC80211("leave\n"); |
2882 | mutex_unlock(&priv->mutex); | |
2883 | ||
2884 | return 0; | |
2885 | } | |
2886 | ||
5b9f8cd3 | 2887 | static void iwl_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
2888 | unsigned int changed_flags, |
2889 | unsigned int *total_flags, | |
2890 | int mc_count, struct dev_addr_list *mc_list) | |
2891 | { | |
4419e39b | 2892 | struct iwl_priv *priv = hw->priv; |
25b3f57c RF |
2893 | |
2894 | if (changed_flags & (*total_flags) & FIF_OTHER_BSS) { | |
2895 | IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n", | |
05c914fe | 2896 | NL80211_IFTYPE_MONITOR, |
25b3f57c RF |
2897 | changed_flags, *total_flags); |
2898 | /* queue work 'cuz mac80211 is holding a lock which | |
2899 | * prevents us from issuing (synchronous) f/w cmds */ | |
2900 | queue_work(priv->workqueue, &priv->set_monitor); | |
4419e39b | 2901 | } |
25b3f57c RF |
2902 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | |
2903 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
4150c572 JB |
2904 | } |
2905 | ||
5b9f8cd3 | 2906 | static void iwl_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
2907 | struct ieee80211_if_init_conf *conf) |
2908 | { | |
c79dd5b5 | 2909 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2910 | |
2911 | IWL_DEBUG_MAC80211("enter\n"); | |
2912 | ||
2913 | mutex_lock(&priv->mutex); | |
948c171c | 2914 | |
fee1247a | 2915 | if (iwl_is_ready_rf(priv)) { |
2a421b91 | 2916 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 2917 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
5b9f8cd3 | 2918 | iwl_commit_rxon(priv); |
fde3571f | 2919 | } |
32bfd35d JB |
2920 | if (priv->vif == conf->vif) { |
2921 | priv->vif = NULL; | |
b481de9c | 2922 | memset(priv->bssid, 0, ETH_ALEN); |
b481de9c ZY |
2923 | } |
2924 | mutex_unlock(&priv->mutex); | |
2925 | ||
2926 | IWL_DEBUG_MAC80211("leave\n"); | |
2927 | ||
2928 | } | |
471b3efd | 2929 | |
3109ece1 | 2930 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
5b9f8cd3 | 2931 | static void iwl_bss_info_changed(struct ieee80211_hw *hw, |
471b3efd JB |
2932 | struct ieee80211_vif *vif, |
2933 | struct ieee80211_bss_conf *bss_conf, | |
2934 | u32 changes) | |
220173b0 | 2935 | { |
c79dd5b5 | 2936 | struct iwl_priv *priv = hw->priv; |
220173b0 | 2937 | |
3109ece1 TW |
2938 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); |
2939 | ||
471b3efd | 2940 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
3109ece1 TW |
2941 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", |
2942 | bss_conf->use_short_preamble); | |
471b3efd | 2943 | if (bss_conf->use_short_preamble) |
220173b0 TW |
2944 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
2945 | else | |
2946 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2947 | } | |
2948 | ||
471b3efd | 2949 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
3109ece1 | 2950 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); |
8318d78a | 2951 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
220173b0 TW |
2952 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
2953 | else | |
2954 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
2955 | } | |
2956 | ||
98952d5d | 2957 | if (changes & BSS_CHANGED_HT) { |
5b9f8cd3 | 2958 | iwl_ht_conf(priv, bss_conf); |
c7de35cd | 2959 | iwl_set_rxon_chain(priv); |
98952d5d TW |
2960 | } |
2961 | ||
471b3efd | 2962 | if (changes & BSS_CHANGED_ASSOC) { |
3109ece1 | 2963 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); |
508e32e1 RC |
2964 | /* This should never happen as this function should |
2965 | * never be called from interrupt context. */ | |
2966 | if (WARN_ON_ONCE(in_interrupt())) | |
2967 | return; | |
3109ece1 TW |
2968 | if (bss_conf->assoc) { |
2969 | priv->assoc_id = bss_conf->aid; | |
2970 | priv->beacon_int = bss_conf->beacon_int; | |
b5d7be5e | 2971 | priv->power_data.dtim_period = bss_conf->dtim_period; |
3109ece1 TW |
2972 | priv->timestamp = bss_conf->timestamp; |
2973 | priv->assoc_capability = bss_conf->assoc_capability; | |
9ccacb86 TW |
2974 | |
2975 | /* we have just associated, don't start scan too early | |
2976 | * leave time for EAPOL exchange to complete | |
2977 | */ | |
3109ece1 TW |
2978 | priv->next_scan_jiffies = jiffies + |
2979 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
508e32e1 | 2980 | mutex_lock(&priv->mutex); |
5b9f8cd3 | 2981 | iwl_post_associate(priv); |
508e32e1 | 2982 | mutex_unlock(&priv->mutex); |
3109ece1 TW |
2983 | } else { |
2984 | priv->assoc_id = 0; | |
2985 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
2986 | } | |
2987 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { | |
2988 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
7e8c519e | 2989 | iwl_send_rxon_assoc(priv); |
471b3efd JB |
2990 | } |
2991 | ||
220173b0 | 2992 | } |
b481de9c | 2993 | |
cb43dc25 | 2994 | static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len) |
b481de9c | 2995 | { |
b481de9c | 2996 | unsigned long flags; |
c79dd5b5 | 2997 | struct iwl_priv *priv = hw->priv; |
8d09a5e1 | 2998 | int ret; |
b481de9c ZY |
2999 | |
3000 | IWL_DEBUG_MAC80211("enter\n"); | |
3001 | ||
052c4b9f | 3002 | mutex_lock(&priv->mutex); |
b481de9c ZY |
3003 | spin_lock_irqsave(&priv->lock, flags); |
3004 | ||
fee1247a | 3005 | if (!iwl_is_ready_rf(priv)) { |
cb43dc25 | 3006 | ret = -EIO; |
b481de9c ZY |
3007 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); |
3008 | goto out_unlock; | |
3009 | } | |
3010 | ||
05c914fe | 3011 | if (priv->iw_mode == NL80211_IFTYPE_AP) { /* APs don't scan */ |
cb43dc25 | 3012 | ret = -EIO; |
b481de9c ZY |
3013 | IWL_ERROR("ERROR: APs don't scan\n"); |
3014 | goto out_unlock; | |
3015 | } | |
3016 | ||
8d09a5e1 TW |
3017 | /* We don't schedule scan within next_scan_jiffies period. |
3018 | * Avoid scanning during possible EAPOL exchange, return | |
3019 | * success immediately. | |
3020 | */ | |
7878a5a4 | 3021 | if (priv->next_scan_jiffies && |
cb43dc25 | 3022 | time_after(priv->next_scan_jiffies, jiffies)) { |
681c0050 | 3023 | IWL_DEBUG_SCAN("scan rejected: within next scan period\n"); |
8d09a5e1 TW |
3024 | queue_work(priv->workqueue, &priv->scan_completed); |
3025 | ret = 0; | |
7878a5a4 MA |
3026 | goto out_unlock; |
3027 | } | |
8d09a5e1 | 3028 | |
b481de9c | 3029 | /* if we just finished scan ask for delay */ |
681c0050 | 3030 | if (iwl_is_associated(priv) && priv->last_scan_jiffies && |
cb43dc25 | 3031 | time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, jiffies)) { |
681c0050 | 3032 | IWL_DEBUG_SCAN("scan rejected: within previous scan period\n"); |
8d09a5e1 TW |
3033 | queue_work(priv->workqueue, &priv->scan_completed); |
3034 | ret = 0; | |
b481de9c ZY |
3035 | goto out_unlock; |
3036 | } | |
8d09a5e1 | 3037 | |
cb43dc25 | 3038 | if (ssid_len) { |
b481de9c | 3039 | priv->one_direct_scan = 1; |
cb43dc25 | 3040 | priv->direct_ssid_len = min_t(u8, ssid_len, IW_ESSID_MAX_SIZE); |
b481de9c | 3041 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); |
cb43dc25 | 3042 | } else { |
948c171c | 3043 | priv->one_direct_scan = 0; |
cb43dc25 | 3044 | } |
b481de9c | 3045 | |
cb43dc25 | 3046 | ret = iwl_scan_initiate(priv); |
b481de9c ZY |
3047 | |
3048 | IWL_DEBUG_MAC80211("leave\n"); | |
3049 | ||
3050 | out_unlock: | |
3051 | spin_unlock_irqrestore(&priv->lock, flags); | |
052c4b9f | 3052 | mutex_unlock(&priv->mutex); |
b481de9c | 3053 | |
cb43dc25 | 3054 | return ret; |
b481de9c ZY |
3055 | } |
3056 | ||
5b9f8cd3 | 3057 | static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw, |
ab885f8c EG |
3058 | struct ieee80211_key_conf *keyconf, const u8 *addr, |
3059 | u32 iv32, u16 *phase1key) | |
3060 | { | |
ab885f8c | 3061 | |
9f58671e | 3062 | struct iwl_priv *priv = hw->priv; |
ab885f8c EG |
3063 | IWL_DEBUG_MAC80211("enter\n"); |
3064 | ||
9f58671e | 3065 | iwl_update_tkip_key(priv, keyconf, addr, iv32, phase1key); |
ab885f8c EG |
3066 | |
3067 | IWL_DEBUG_MAC80211("leave\n"); | |
3068 | } | |
3069 | ||
5b9f8cd3 | 3070 | static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
3071 | const u8 *local_addr, const u8 *addr, |
3072 | struct ieee80211_key_conf *key) | |
3073 | { | |
c79dd5b5 | 3074 | struct iwl_priv *priv = hw->priv; |
deb09c43 EG |
3075 | int ret = 0; |
3076 | u8 sta_id = IWL_INVALID_STATION; | |
6974e363 | 3077 | u8 is_default_wep_key = 0; |
b481de9c ZY |
3078 | |
3079 | IWL_DEBUG_MAC80211("enter\n"); | |
3080 | ||
099b40b7 | 3081 | if (priv->hw_params.sw_crypto) { |
b481de9c ZY |
3082 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
3083 | return -EOPNOTSUPP; | |
3084 | } | |
3085 | ||
3086 | if (is_zero_ether_addr(addr)) | |
3087 | /* only support pairwise keys */ | |
3088 | return -EOPNOTSUPP; | |
3089 | ||
947b13a7 | 3090 | sta_id = iwl_find_station(priv, addr); |
6974e363 | 3091 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
3092 | IWL_DEBUG_MAC80211("leave - %pM not in station map.\n", |
3093 | addr); | |
6974e363 | 3094 | return -EINVAL; |
b481de9c | 3095 | |
deb09c43 | 3096 | } |
b481de9c | 3097 | |
6974e363 | 3098 | mutex_lock(&priv->mutex); |
2a421b91 | 3099 | iwl_scan_cancel_timeout(priv, 100); |
6974e363 EG |
3100 | mutex_unlock(&priv->mutex); |
3101 | ||
3102 | /* If we are getting WEP group key and we didn't receive any key mapping | |
3103 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
3104 | * in 1X mode. | |
3105 | * In legacy wep mode, we use another host command to the uCode */ | |
5425e490 | 3106 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
05c914fe | 3107 | priv->iw_mode != NL80211_IFTYPE_AP) { |
6974e363 EG |
3108 | if (cmd == SET_KEY) |
3109 | is_default_wep_key = !priv->key_mapping_key; | |
3110 | else | |
ccc038ab EG |
3111 | is_default_wep_key = |
3112 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 3113 | } |
052c4b9f | 3114 | |
b481de9c | 3115 | switch (cmd) { |
deb09c43 | 3116 | case SET_KEY: |
6974e363 EG |
3117 | if (is_default_wep_key) |
3118 | ret = iwl_set_default_wep_key(priv, key); | |
deb09c43 | 3119 | else |
7480513f | 3120 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
3121 | |
3122 | IWL_DEBUG_MAC80211("enable hwcrypto key\n"); | |
b481de9c ZY |
3123 | break; |
3124 | case DISABLE_KEY: | |
6974e363 EG |
3125 | if (is_default_wep_key) |
3126 | ret = iwl_remove_default_wep_key(priv, key); | |
deb09c43 | 3127 | else |
3ec47732 | 3128 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
3129 | |
3130 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); | |
b481de9c ZY |
3131 | break; |
3132 | default: | |
deb09c43 | 3133 | ret = -EINVAL; |
b481de9c ZY |
3134 | } |
3135 | ||
3136 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c | 3137 | |
deb09c43 | 3138 | return ret; |
b481de9c ZY |
3139 | } |
3140 | ||
5b9f8cd3 | 3141 | static int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
3142 | const struct ieee80211_tx_queue_params *params) |
3143 | { | |
c79dd5b5 | 3144 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3145 | unsigned long flags; |
3146 | int q; | |
b481de9c ZY |
3147 | |
3148 | IWL_DEBUG_MAC80211("enter\n"); | |
3149 | ||
fee1247a | 3150 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3151 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
3152 | return -EIO; | |
3153 | } | |
3154 | ||
3155 | if (queue >= AC_NUM) { | |
3156 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
3157 | return 0; | |
3158 | } | |
3159 | ||
b481de9c ZY |
3160 | if (!priv->qos_data.qos_enable) { |
3161 | priv->qos_data.qos_active = 0; | |
3162 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
3163 | return 0; | |
3164 | } | |
3165 | q = AC_NUM - 1 - queue; | |
3166 | ||
3167 | spin_lock_irqsave(&priv->lock, flags); | |
3168 | ||
3169 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
3170 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
3171 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
3172 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 3173 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
3174 | |
3175 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
3176 | priv->qos_data.qos_active = 1; | |
3177 | ||
05c914fe | 3178 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
1ff50bda | 3179 | iwl_activate_qos(priv, 1); |
3109ece1 | 3180 | else if (priv->assoc_id && iwl_is_associated(priv)) |
1ff50bda | 3181 | iwl_activate_qos(priv, 0); |
b481de9c | 3182 | |
1ff50bda | 3183 | spin_unlock_irqrestore(&priv->lock, flags); |
b481de9c | 3184 | |
b481de9c ZY |
3185 | IWL_DEBUG_MAC80211("leave\n"); |
3186 | return 0; | |
3187 | } | |
3188 | ||
5b9f8cd3 | 3189 | static int iwl_mac_ampdu_action(struct ieee80211_hw *hw, |
d783b061 | 3190 | enum ieee80211_ampdu_mlme_action action, |
17741cdc | 3191 | struct ieee80211_sta *sta, u16 tid, u16 *ssn) |
d783b061 TW |
3192 | { |
3193 | struct iwl_priv *priv = hw->priv; | |
d783b061 | 3194 | |
e174961c JB |
3195 | IWL_DEBUG_HT("A-MPDU action on addr %pM tid %d\n", |
3196 | sta->addr, tid); | |
d783b061 TW |
3197 | |
3198 | if (!(priv->cfg->sku & IWL_SKU_N)) | |
3199 | return -EACCES; | |
3200 | ||
3201 | switch (action) { | |
3202 | case IEEE80211_AMPDU_RX_START: | |
3203 | IWL_DEBUG_HT("start Rx\n"); | |
9f58671e | 3204 | return iwl_sta_rx_agg_start(priv, sta->addr, tid, *ssn); |
d783b061 TW |
3205 | case IEEE80211_AMPDU_RX_STOP: |
3206 | IWL_DEBUG_HT("stop Rx\n"); | |
9f58671e | 3207 | return iwl_sta_rx_agg_stop(priv, sta->addr, tid); |
d783b061 TW |
3208 | case IEEE80211_AMPDU_TX_START: |
3209 | IWL_DEBUG_HT("start Tx\n"); | |
17741cdc | 3210 | return iwl_tx_agg_start(priv, sta->addr, tid, ssn); |
d783b061 TW |
3211 | case IEEE80211_AMPDU_TX_STOP: |
3212 | IWL_DEBUG_HT("stop Tx\n"); | |
17741cdc | 3213 | return iwl_tx_agg_stop(priv, sta->addr, tid); |
d783b061 TW |
3214 | default: |
3215 | IWL_DEBUG_HT("unknown\n"); | |
3216 | return -EINVAL; | |
3217 | break; | |
3218 | } | |
3219 | return 0; | |
3220 | } | |
9f58671e | 3221 | |
5b9f8cd3 | 3222 | static int iwl_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
3223 | struct ieee80211_tx_queue_stats *stats) |
3224 | { | |
c79dd5b5 | 3225 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3226 | int i, avail; |
16466903 | 3227 | struct iwl_tx_queue *txq; |
443cfd45 | 3228 | struct iwl_queue *q; |
b481de9c ZY |
3229 | unsigned long flags; |
3230 | ||
3231 | IWL_DEBUG_MAC80211("enter\n"); | |
3232 | ||
fee1247a | 3233 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3234 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
3235 | return -EIO; | |
3236 | } | |
3237 | ||
3238 | spin_lock_irqsave(&priv->lock, flags); | |
3239 | ||
3240 | for (i = 0; i < AC_NUM; i++) { | |
3241 | txq = &priv->txq[i]; | |
3242 | q = &txq->q; | |
443cfd45 | 3243 | avail = iwl_queue_space(q); |
b481de9c | 3244 | |
57ffc589 JB |
3245 | stats[i].len = q->n_window - avail; |
3246 | stats[i].limit = q->n_window - q->high_mark; | |
3247 | stats[i].count = q->n_window; | |
b481de9c ZY |
3248 | |
3249 | } | |
3250 | spin_unlock_irqrestore(&priv->lock, flags); | |
3251 | ||
3252 | IWL_DEBUG_MAC80211("leave\n"); | |
3253 | ||
3254 | return 0; | |
3255 | } | |
3256 | ||
5b9f8cd3 | 3257 | static int iwl_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
3258 | struct ieee80211_low_level_stats *stats) |
3259 | { | |
bf403db8 EK |
3260 | struct iwl_priv *priv = hw->priv; |
3261 | ||
3262 | priv = hw->priv; | |
b481de9c ZY |
3263 | IWL_DEBUG_MAC80211("enter\n"); |
3264 | IWL_DEBUG_MAC80211("leave\n"); | |
3265 | ||
3266 | return 0; | |
3267 | } | |
3268 | ||
5b9f8cd3 | 3269 | static void iwl_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 3270 | { |
c79dd5b5 | 3271 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3272 | unsigned long flags; |
3273 | ||
3274 | mutex_lock(&priv->mutex); | |
3275 | IWL_DEBUG_MAC80211("enter\n"); | |
3276 | ||
b481de9c | 3277 | spin_lock_irqsave(&priv->lock, flags); |
fd105e79 | 3278 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); |
b481de9c | 3279 | spin_unlock_irqrestore(&priv->lock, flags); |
b481de9c | 3280 | |
c7de35cd | 3281 | iwl_reset_qos(priv); |
b481de9c | 3282 | |
b481de9c ZY |
3283 | spin_lock_irqsave(&priv->lock, flags); |
3284 | priv->assoc_id = 0; | |
3285 | priv->assoc_capability = 0; | |
b481de9c ZY |
3286 | priv->assoc_station_added = 0; |
3287 | ||
3288 | /* new association get rid of ibss beacon skb */ | |
3289 | if (priv->ibss_beacon) | |
3290 | dev_kfree_skb(priv->ibss_beacon); | |
3291 | ||
3292 | priv->ibss_beacon = NULL; | |
3293 | ||
3294 | priv->beacon_int = priv->hw->conf.beacon_int; | |
3109ece1 | 3295 | priv->timestamp = 0; |
05c914fe | 3296 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
b481de9c ZY |
3297 | priv->beacon_int = 0; |
3298 | ||
3299 | spin_unlock_irqrestore(&priv->lock, flags); | |
3300 | ||
fee1247a | 3301 | if (!iwl_is_ready_rf(priv)) { |
fde3571f MA |
3302 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
3303 | mutex_unlock(&priv->mutex); | |
3304 | return; | |
3305 | } | |
3306 | ||
052c4b9f | 3307 | /* we are restarting association process |
3308 | * clear RXON_FILTER_ASSOC_MSK bit | |
3309 | */ | |
05c914fe | 3310 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
2a421b91 | 3311 | iwl_scan_cancel_timeout(priv, 100); |
052c4b9f | 3312 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
5b9f8cd3 | 3313 | iwl_commit_rxon(priv); |
052c4b9f | 3314 | } |
3315 | ||
5da4b55f MA |
3316 | iwl_power_update_mode(priv, 0); |
3317 | ||
b481de9c | 3318 | /* Per mac80211.h: This is only used in IBSS mode... */ |
05c914fe | 3319 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
052c4b9f | 3320 | |
c90a74ba EG |
3321 | /* switch to CAM during association period. |
3322 | * the ucode will block any association/authentication | |
3323 | * frome during assiciation period if it can not hear | |
3324 | * the AP because of PM. the timer enable PM back is | |
3325 | * association do not complete | |
3326 | */ | |
3327 | if (priv->hw->conf.channel->flags & (IEEE80211_CHAN_PASSIVE_SCAN | | |
3328 | IEEE80211_CHAN_RADAR)) | |
3329 | iwl_power_disable_management(priv, 3000); | |
3330 | ||
b481de9c ZY |
3331 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
3332 | mutex_unlock(&priv->mutex); | |
3333 | return; | |
3334 | } | |
3335 | ||
5b9f8cd3 | 3336 | iwl_set_rate(priv); |
b481de9c ZY |
3337 | |
3338 | mutex_unlock(&priv->mutex); | |
3339 | ||
3340 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
3341 | } |
3342 | ||
5b9f8cd3 | 3343 | static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3344 | { |
c79dd5b5 | 3345 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3346 | unsigned long flags; |
2ff75b78 | 3347 | __le64 timestamp; |
b481de9c | 3348 | |
b481de9c ZY |
3349 | IWL_DEBUG_MAC80211("enter\n"); |
3350 | ||
fee1247a | 3351 | if (!iwl_is_ready_rf(priv)) { |
b481de9c | 3352 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
b481de9c ZY |
3353 | return -EIO; |
3354 | } | |
3355 | ||
05c914fe | 3356 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
b481de9c | 3357 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); |
b481de9c ZY |
3358 | return -EIO; |
3359 | } | |
3360 | ||
3361 | spin_lock_irqsave(&priv->lock, flags); | |
3362 | ||
3363 | if (priv->ibss_beacon) | |
3364 | dev_kfree_skb(priv->ibss_beacon); | |
3365 | ||
3366 | priv->ibss_beacon = skb; | |
3367 | ||
3368 | priv->assoc_id = 0; | |
2ff75b78 | 3369 | timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; |
b94d8eea | 3370 | priv->timestamp = le64_to_cpu(timestamp); |
b481de9c ZY |
3371 | |
3372 | IWL_DEBUG_MAC80211("leave\n"); | |
3373 | spin_unlock_irqrestore(&priv->lock, flags); | |
3374 | ||
c7de35cd | 3375 | iwl_reset_qos(priv); |
b481de9c | 3376 | |
5b9f8cd3 | 3377 | iwl_post_associate(priv); |
b481de9c | 3378 | |
b481de9c ZY |
3379 | |
3380 | return 0; | |
3381 | } | |
3382 | ||
b481de9c ZY |
3383 | /***************************************************************************** |
3384 | * | |
3385 | * sysfs attributes | |
3386 | * | |
3387 | *****************************************************************************/ | |
3388 | ||
0a6857e7 | 3389 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3390 | |
3391 | /* | |
3392 | * The following adds a new attribute to the sysfs representation | |
3393 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
3394 | * used for controlling the debug level. | |
3395 | * | |
3396 | * See the level definitions in iwl for details. | |
3397 | */ | |
3398 | ||
8cf769c6 EK |
3399 | static ssize_t show_debug_level(struct device *d, |
3400 | struct device_attribute *attr, char *buf) | |
b481de9c | 3401 | { |
8cf769c6 EK |
3402 | struct iwl_priv *priv = d->driver_data; |
3403 | ||
3404 | return sprintf(buf, "0x%08X\n", priv->debug_level); | |
b481de9c | 3405 | } |
8cf769c6 EK |
3406 | static ssize_t store_debug_level(struct device *d, |
3407 | struct device_attribute *attr, | |
b481de9c ZY |
3408 | const char *buf, size_t count) |
3409 | { | |
8cf769c6 | 3410 | struct iwl_priv *priv = d->driver_data; |
9257746f TW |
3411 | unsigned long val; |
3412 | int ret; | |
b481de9c | 3413 | |
9257746f TW |
3414 | ret = strict_strtoul(buf, 0, &val); |
3415 | if (ret) | |
b481de9c ZY |
3416 | printk(KERN_INFO DRV_NAME |
3417 | ": %s is not in hex or decimal form.\n", buf); | |
3418 | else | |
8cf769c6 | 3419 | priv->debug_level = val; |
b481de9c ZY |
3420 | |
3421 | return strnlen(buf, count); | |
3422 | } | |
3423 | ||
8cf769c6 EK |
3424 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
3425 | show_debug_level, store_debug_level); | |
3426 | ||
b481de9c | 3427 | |
0a6857e7 | 3428 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 3429 | |
b481de9c | 3430 | |
bc6f59bc TW |
3431 | static ssize_t show_version(struct device *d, |
3432 | struct device_attribute *attr, char *buf) | |
3433 | { | |
3434 | struct iwl_priv *priv = d->driver_data; | |
885ba202 | 3435 | struct iwl_alive_resp *palive = &priv->card_alive; |
f236a265 TW |
3436 | ssize_t pos = 0; |
3437 | u16 eeprom_ver; | |
bc6f59bc TW |
3438 | |
3439 | if (palive->is_valid) | |
f236a265 TW |
3440 | pos += sprintf(buf + pos, |
3441 | "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" | |
3442 | "fw type: 0x%01X 0x%01X\n", | |
bc6f59bc TW |
3443 | palive->ucode_major, palive->ucode_minor, |
3444 | palive->sw_rev[0], palive->sw_rev[1], | |
3445 | palive->ver_type, palive->ver_subtype); | |
bc6f59bc | 3446 | else |
f236a265 TW |
3447 | pos += sprintf(buf + pos, "fw not loaded\n"); |
3448 | ||
3449 | if (priv->eeprom) { | |
3450 | eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); | |
3451 | pos += sprintf(buf + pos, "EEPROM version: 0x%x\n", | |
3452 | eeprom_ver); | |
3453 | } else { | |
3454 | pos += sprintf(buf + pos, "EEPROM not initialzed\n"); | |
3455 | } | |
3456 | ||
3457 | return pos; | |
bc6f59bc TW |
3458 | } |
3459 | ||
3460 | static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); | |
3461 | ||
b481de9c ZY |
3462 | static ssize_t show_temperature(struct device *d, |
3463 | struct device_attribute *attr, char *buf) | |
3464 | { | |
c79dd5b5 | 3465 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 3466 | |
fee1247a | 3467 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3468 | return -EAGAIN; |
3469 | ||
91dbc5bd | 3470 | return sprintf(buf, "%d\n", priv->temperature); |
b481de9c ZY |
3471 | } |
3472 | ||
3473 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
3474 | ||
b481de9c ZY |
3475 | static ssize_t show_tx_power(struct device *d, |
3476 | struct device_attribute *attr, char *buf) | |
3477 | { | |
c79dd5b5 | 3478 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
630fe9b6 | 3479 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
b481de9c ZY |
3480 | } |
3481 | ||
3482 | static ssize_t store_tx_power(struct device *d, | |
3483 | struct device_attribute *attr, | |
3484 | const char *buf, size_t count) | |
3485 | { | |
c79dd5b5 | 3486 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
9257746f TW |
3487 | unsigned long val; |
3488 | int ret; | |
b481de9c | 3489 | |
9257746f TW |
3490 | ret = strict_strtoul(buf, 10, &val); |
3491 | if (ret) | |
b481de9c ZY |
3492 | printk(KERN_INFO DRV_NAME |
3493 | ": %s is not in decimal form.\n", buf); | |
3494 | else | |
630fe9b6 | 3495 | iwl_set_tx_power(priv, val, false); |
b481de9c ZY |
3496 | |
3497 | return count; | |
3498 | } | |
3499 | ||
3500 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
3501 | ||
3502 | static ssize_t show_flags(struct device *d, | |
3503 | struct device_attribute *attr, char *buf) | |
3504 | { | |
c79dd5b5 | 3505 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3506 | |
3507 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
3508 | } | |
3509 | ||
3510 | static ssize_t store_flags(struct device *d, | |
3511 | struct device_attribute *attr, | |
3512 | const char *buf, size_t count) | |
3513 | { | |
c79dd5b5 | 3514 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
9257746f TW |
3515 | unsigned long val; |
3516 | u32 flags; | |
3517 | int ret = strict_strtoul(buf, 0, &val); | |
926f0b2e | 3518 | if (ret) |
9257746f TW |
3519 | return ret; |
3520 | flags = (u32)val; | |
b481de9c ZY |
3521 | |
3522 | mutex_lock(&priv->mutex); | |
3523 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
3524 | /* Cancel any currently running scans... */ | |
2a421b91 | 3525 | if (iwl_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
3526 | IWL_WARNING("Could not cancel scan.\n"); |
3527 | else { | |
9257746f | 3528 | IWL_DEBUG_INFO("Commit rxon.flags = 0x%04X\n", flags); |
b481de9c | 3529 | priv->staging_rxon.flags = cpu_to_le32(flags); |
5b9f8cd3 | 3530 | iwl_commit_rxon(priv); |
b481de9c ZY |
3531 | } |
3532 | } | |
3533 | mutex_unlock(&priv->mutex); | |
3534 | ||
3535 | return count; | |
3536 | } | |
3537 | ||
3538 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
3539 | ||
3540 | static ssize_t show_filter_flags(struct device *d, | |
3541 | struct device_attribute *attr, char *buf) | |
3542 | { | |
c79dd5b5 | 3543 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3544 | |
3545 | return sprintf(buf, "0x%04X\n", | |
3546 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
3547 | } | |
3548 | ||
3549 | static ssize_t store_filter_flags(struct device *d, | |
3550 | struct device_attribute *attr, | |
3551 | const char *buf, size_t count) | |
3552 | { | |
c79dd5b5 | 3553 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
9257746f TW |
3554 | unsigned long val; |
3555 | u32 filter_flags; | |
3556 | int ret = strict_strtoul(buf, 0, &val); | |
926f0b2e | 3557 | if (ret) |
9257746f TW |
3558 | return ret; |
3559 | filter_flags = (u32)val; | |
b481de9c ZY |
3560 | |
3561 | mutex_lock(&priv->mutex); | |
3562 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
3563 | /* Cancel any currently running scans... */ | |
2a421b91 | 3564 | if (iwl_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
3565 | IWL_WARNING("Could not cancel scan.\n"); |
3566 | else { | |
3567 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
3568 | "0x%04X\n", filter_flags); | |
3569 | priv->staging_rxon.filter_flags = | |
3570 | cpu_to_le32(filter_flags); | |
5b9f8cd3 | 3571 | iwl_commit_rxon(priv); |
b481de9c ZY |
3572 | } |
3573 | } | |
3574 | mutex_unlock(&priv->mutex); | |
3575 | ||
3576 | return count; | |
3577 | } | |
3578 | ||
3579 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
3580 | store_filter_flags); | |
3581 | ||
b481de9c ZY |
3582 | static ssize_t store_retry_rate(struct device *d, |
3583 | struct device_attribute *attr, | |
3584 | const char *buf, size_t count) | |
3585 | { | |
c79dd5b5 | 3586 | struct iwl_priv *priv = dev_get_drvdata(d); |
9257746f TW |
3587 | long val; |
3588 | int ret = strict_strtol(buf, 10, &val); | |
3589 | if (!ret) | |
3590 | return ret; | |
b481de9c | 3591 | |
9257746f | 3592 | priv->retry_rate = (val > 0) ? val : 1; |
b481de9c ZY |
3593 | |
3594 | return count; | |
3595 | } | |
3596 | ||
3597 | static ssize_t show_retry_rate(struct device *d, | |
3598 | struct device_attribute *attr, char *buf) | |
3599 | { | |
c79dd5b5 | 3600 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3601 | return sprintf(buf, "%d", priv->retry_rate); |
3602 | } | |
3603 | ||
3604 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
3605 | store_retry_rate); | |
3606 | ||
3607 | static ssize_t store_power_level(struct device *d, | |
3608 | struct device_attribute *attr, | |
3609 | const char *buf, size_t count) | |
3610 | { | |
c79dd5b5 | 3611 | struct iwl_priv *priv = dev_get_drvdata(d); |
298df1f6 | 3612 | int ret; |
9257746f TW |
3613 | unsigned long mode; |
3614 | ||
b481de9c | 3615 | |
b481de9c ZY |
3616 | mutex_lock(&priv->mutex); |
3617 | ||
fee1247a | 3618 | if (!iwl_is_ready(priv)) { |
298df1f6 | 3619 | ret = -EAGAIN; |
b481de9c ZY |
3620 | goto out; |
3621 | } | |
3622 | ||
9257746f | 3623 | ret = strict_strtoul(buf, 10, &mode); |
926f0b2e | 3624 | if (ret) |
9257746f TW |
3625 | goto out; |
3626 | ||
298df1f6 EK |
3627 | ret = iwl_power_set_user_mode(priv, mode); |
3628 | if (ret) { | |
5da4b55f MA |
3629 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); |
3630 | goto out; | |
b481de9c | 3631 | } |
298df1f6 | 3632 | ret = count; |
b481de9c ZY |
3633 | |
3634 | out: | |
3635 | mutex_unlock(&priv->mutex); | |
298df1f6 | 3636 | return ret; |
b481de9c ZY |
3637 | } |
3638 | ||
b481de9c ZY |
3639 | static ssize_t show_power_level(struct device *d, |
3640 | struct device_attribute *attr, char *buf) | |
3641 | { | |
c79dd5b5 | 3642 | struct iwl_priv *priv = dev_get_drvdata(d); |
298df1f6 EK |
3643 | int mode = priv->power_data.user_power_setting; |
3644 | int system = priv->power_data.system_power_setting; | |
5da4b55f | 3645 | int level = priv->power_data.power_mode; |
b481de9c ZY |
3646 | char *p = buf; |
3647 | ||
298df1f6 EK |
3648 | switch (system) { |
3649 | case IWL_POWER_SYS_AUTO: | |
3650 | p += sprintf(p, "SYSTEM:auto"); | |
b481de9c | 3651 | break; |
298df1f6 EK |
3652 | case IWL_POWER_SYS_AC: |
3653 | p += sprintf(p, "SYSTEM:ac"); | |
3654 | break; | |
3655 | case IWL_POWER_SYS_BATTERY: | |
3656 | p += sprintf(p, "SYSTEM:battery"); | |
b481de9c | 3657 | break; |
b481de9c | 3658 | } |
298df1f6 EK |
3659 | |
3660 | p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO)?"fixed":"auto"); | |
3661 | p += sprintf(p, "\tINDEX:%d", level); | |
3662 | p += sprintf(p, "\n"); | |
3ac7f146 | 3663 | return p - buf + 1; |
b481de9c ZY |
3664 | } |
3665 | ||
3666 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
3667 | store_power_level); | |
3668 | ||
3669 | static ssize_t show_channels(struct device *d, | |
3670 | struct device_attribute *attr, char *buf) | |
3671 | { | |
5d72a1f5 EK |
3672 | |
3673 | struct iwl_priv *priv = dev_get_drvdata(d); | |
3674 | struct ieee80211_channel *channels = NULL; | |
3675 | const struct ieee80211_supported_band *supp_band = NULL; | |
3676 | int len = 0, i; | |
3677 | int count = 0; | |
3678 | ||
3679 | if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status)) | |
3680 | return -EAGAIN; | |
3681 | ||
3682 | supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ); | |
3683 | channels = supp_band->channels; | |
3684 | count = supp_band->n_channels; | |
3685 | ||
3686 | len += sprintf(&buf[len], | |
3687 | "Displaying %d channels in 2.4GHz band " | |
3688 | "(802.11bg):\n", count); | |
3689 | ||
3690 | for (i = 0; i < count; i++) | |
3691 | len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n", | |
3692 | ieee80211_frequency_to_channel( | |
3693 | channels[i].center_freq), | |
3694 | channels[i].max_power, | |
3695 | channels[i].flags & IEEE80211_CHAN_RADAR ? | |
3696 | " (IEEE 802.11h required)" : "", | |
3697 | (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS) | |
3698 | || (channels[i].flags & | |
3699 | IEEE80211_CHAN_RADAR)) ? "" : | |
3700 | ", IBSS", | |
3701 | channels[i].flags & | |
3702 | IEEE80211_CHAN_PASSIVE_SCAN ? | |
3703 | "passive only" : "active/passive"); | |
3704 | ||
3705 | supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ); | |
3706 | channels = supp_band->channels; | |
3707 | count = supp_band->n_channels; | |
3708 | ||
3709 | len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band " | |
3710 | "(802.11a):\n", count); | |
3711 | ||
3712 | for (i = 0; i < count; i++) | |
3713 | len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n", | |
3714 | ieee80211_frequency_to_channel( | |
3715 | channels[i].center_freq), | |
3716 | channels[i].max_power, | |
3717 | channels[i].flags & IEEE80211_CHAN_RADAR ? | |
3718 | " (IEEE 802.11h required)" : "", | |
3719 | ((channels[i].flags & IEEE80211_CHAN_NO_IBSS) | |
3720 | || (channels[i].flags & | |
3721 | IEEE80211_CHAN_RADAR)) ? "" : | |
3722 | ", IBSS", | |
3723 | channels[i].flags & | |
3724 | IEEE80211_CHAN_PASSIVE_SCAN ? | |
3725 | "passive only" : "active/passive"); | |
3726 | ||
3727 | return len; | |
b481de9c ZY |
3728 | } |
3729 | ||
3730 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
3731 | ||
3732 | static ssize_t show_statistics(struct device *d, | |
3733 | struct device_attribute *attr, char *buf) | |
3734 | { | |
c79dd5b5 | 3735 | struct iwl_priv *priv = dev_get_drvdata(d); |
8f91aecb | 3736 | u32 size = sizeof(struct iwl_notif_statistics); |
b481de9c | 3737 | u32 len = 0, ofs = 0; |
3ac7f146 | 3738 | u8 *data = (u8 *)&priv->statistics; |
b481de9c ZY |
3739 | int rc = 0; |
3740 | ||
fee1247a | 3741 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3742 | return -EAGAIN; |
3743 | ||
3744 | mutex_lock(&priv->mutex); | |
49ea8596 | 3745 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
3746 | mutex_unlock(&priv->mutex); |
3747 | ||
3748 | if (rc) { | |
3749 | len = sprintf(buf, | |
3750 | "Error sending statistics request: 0x%08X\n", rc); | |
3751 | return len; | |
3752 | } | |
3753 | ||
3754 | while (size && (PAGE_SIZE - len)) { | |
3755 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3756 | PAGE_SIZE - len, 1); | |
3757 | len = strlen(buf); | |
3758 | if (PAGE_SIZE - len) | |
3759 | buf[len++] = '\n'; | |
3760 | ||
3761 | ofs += 16; | |
3762 | size -= min(size, 16U); | |
3763 | } | |
3764 | ||
3765 | return len; | |
3766 | } | |
3767 | ||
3768 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
3769 | ||
b481de9c ZY |
3770 | static ssize_t show_status(struct device *d, |
3771 | struct device_attribute *attr, char *buf) | |
3772 | { | |
c79dd5b5 | 3773 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
fee1247a | 3774 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3775 | return -EAGAIN; |
3776 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
3777 | } | |
3778 | ||
3779 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
3780 | ||
b481de9c ZY |
3781 | /***************************************************************************** |
3782 | * | |
3783 | * driver setup and teardown | |
3784 | * | |
3785 | *****************************************************************************/ | |
3786 | ||
4e39317d | 3787 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
3788 | { |
3789 | priv->workqueue = create_workqueue(DRV_NAME); | |
3790 | ||
3791 | init_waitqueue_head(&priv->wait_command_queue); | |
3792 | ||
5b9f8cd3 EG |
3793 | INIT_WORK(&priv->up, iwl_bg_up); |
3794 | INIT_WORK(&priv->restart, iwl_bg_restart); | |
3795 | INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); | |
3796 | INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill); | |
3797 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); | |
3798 | INIT_WORK(&priv->set_monitor, iwl_bg_set_monitor); | |
16e727e8 | 3799 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
4a4a9e81 TW |
3800 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); |
3801 | INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); | |
2a421b91 | 3802 | |
2a421b91 | 3803 | iwl_setup_scan_deferred_work(priv); |
c90a74ba | 3804 | iwl_setup_power_deferred_work(priv); |
bb8c093b | 3805 | |
4e39317d EG |
3806 | if (priv->cfg->ops->lib->setup_deferred_work) |
3807 | priv->cfg->ops->lib->setup_deferred_work(priv); | |
3808 | ||
3809 | init_timer(&priv->statistics_periodic); | |
3810 | priv->statistics_periodic.data = (unsigned long)priv; | |
5b9f8cd3 | 3811 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
b481de9c ZY |
3812 | |
3813 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
5b9f8cd3 | 3814 | iwl_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
3815 | } |
3816 | ||
4e39317d | 3817 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 3818 | { |
4e39317d EG |
3819 | if (priv->cfg->ops->lib->cancel_deferred_work) |
3820 | priv->cfg->ops->lib->cancel_deferred_work(priv); | |
b481de9c | 3821 | |
3ae6a054 | 3822 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c | 3823 | cancel_delayed_work(&priv->scan_check); |
c90a74ba | 3824 | cancel_delayed_work_sync(&priv->set_power_save); |
b481de9c | 3825 | cancel_delayed_work(&priv->alive_start); |
b481de9c | 3826 | cancel_work_sync(&priv->beacon_update); |
4e39317d | 3827 | del_timer_sync(&priv->statistics_periodic); |
b481de9c ZY |
3828 | } |
3829 | ||
5b9f8cd3 | 3830 | static struct attribute *iwl_sysfs_entries[] = { |
b481de9c | 3831 | &dev_attr_channels.attr, |
b481de9c ZY |
3832 | &dev_attr_flags.attr, |
3833 | &dev_attr_filter_flags.attr, | |
b481de9c ZY |
3834 | &dev_attr_power_level.attr, |
3835 | &dev_attr_retry_rate.attr, | |
b481de9c ZY |
3836 | &dev_attr_statistics.attr, |
3837 | &dev_attr_status.attr, | |
3838 | &dev_attr_temperature.attr, | |
b481de9c | 3839 | &dev_attr_tx_power.attr, |
8cf769c6 EK |
3840 | #ifdef CONFIG_IWLWIFI_DEBUG |
3841 | &dev_attr_debug_level.attr, | |
3842 | #endif | |
bc6f59bc | 3843 | &dev_attr_version.attr, |
b481de9c ZY |
3844 | |
3845 | NULL | |
3846 | }; | |
3847 | ||
5b9f8cd3 | 3848 | static struct attribute_group iwl_attribute_group = { |
b481de9c | 3849 | .name = NULL, /* put in device directory */ |
5b9f8cd3 | 3850 | .attrs = iwl_sysfs_entries, |
b481de9c ZY |
3851 | }; |
3852 | ||
5b9f8cd3 EG |
3853 | static struct ieee80211_ops iwl_hw_ops = { |
3854 | .tx = iwl_mac_tx, | |
3855 | .start = iwl_mac_start, | |
3856 | .stop = iwl_mac_stop, | |
3857 | .add_interface = iwl_mac_add_interface, | |
3858 | .remove_interface = iwl_mac_remove_interface, | |
3859 | .config = iwl_mac_config, | |
3860 | .config_interface = iwl_mac_config_interface, | |
3861 | .configure_filter = iwl_configure_filter, | |
3862 | .set_key = iwl_mac_set_key, | |
3863 | .update_tkip_key = iwl_mac_update_tkip_key, | |
3864 | .get_stats = iwl_mac_get_stats, | |
3865 | .get_tx_stats = iwl_mac_get_tx_stats, | |
3866 | .conf_tx = iwl_mac_conf_tx, | |
3867 | .reset_tsf = iwl_mac_reset_tsf, | |
3868 | .bss_info_changed = iwl_bss_info_changed, | |
3869 | .ampdu_action = iwl_mac_ampdu_action, | |
cb43dc25 | 3870 | .hw_scan = iwl_mac_hw_scan |
b481de9c ZY |
3871 | }; |
3872 | ||
5b9f8cd3 | 3873 | static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
3874 | { |
3875 | int err = 0; | |
c79dd5b5 | 3876 | struct iwl_priv *priv; |
b481de9c | 3877 | struct ieee80211_hw *hw; |
82b9a121 | 3878 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
0359facc | 3879 | unsigned long flags; |
b481de9c | 3880 | |
316c30d9 AK |
3881 | /************************ |
3882 | * 1. Allocating HW data | |
3883 | ************************/ | |
3884 | ||
6440adb5 CB |
3885 | /* Disabling hardware scan means that mac80211 will perform scans |
3886 | * "the hard way", rather than using device's scan. */ | |
1ea87396 | 3887 | if (cfg->mod_params->disable_hw_scan) { |
bf403db8 EK |
3888 | if (cfg->mod_params->debug & IWL_DL_INFO) |
3889 | dev_printk(KERN_DEBUG, &(pdev->dev), | |
3890 | "Disabling hw_scan\n"); | |
5b9f8cd3 | 3891 | iwl_hw_ops.hw_scan = NULL; |
b481de9c ZY |
3892 | } |
3893 | ||
5b9f8cd3 | 3894 | hw = iwl_alloc_all(cfg, &iwl_hw_ops); |
1d0a082d | 3895 | if (!hw) { |
b481de9c ZY |
3896 | err = -ENOMEM; |
3897 | goto out; | |
3898 | } | |
1d0a082d AK |
3899 | priv = hw->priv; |
3900 | /* At this point both hw and priv are allocated. */ | |
3901 | ||
b481de9c ZY |
3902 | SET_IEEE80211_DEV(hw, &pdev->dev); |
3903 | ||
3904 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); | |
82b9a121 | 3905 | priv->cfg = cfg; |
b481de9c | 3906 | priv->pci_dev = pdev; |
316c30d9 | 3907 | |
0a6857e7 | 3908 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 3909 | priv->debug_level = priv->cfg->mod_params->debug; |
b481de9c ZY |
3910 | atomic_set(&priv->restrict_refcnt, 0); |
3911 | #endif | |
b481de9c | 3912 | |
316c30d9 AK |
3913 | /************************** |
3914 | * 2. Initializing PCI bus | |
3915 | **************************/ | |
3916 | if (pci_enable_device(pdev)) { | |
3917 | err = -ENODEV; | |
3918 | goto out_ieee80211_free_hw; | |
3919 | } | |
3920 | ||
3921 | pci_set_master(pdev); | |
3922 | ||
093d874c | 3923 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); |
316c30d9 | 3924 | if (!err) |
093d874c | 3925 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36)); |
cc2a8ea8 | 3926 | if (err) { |
093d874c | 3927 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
cc2a8ea8 | 3928 | if (!err) |
093d874c | 3929 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
cc2a8ea8 | 3930 | /* both attempts failed: */ |
316c30d9 | 3931 | if (err) { |
cc2a8ea8 RR |
3932 | printk(KERN_WARNING "%s: No suitable DMA available.\n", |
3933 | DRV_NAME); | |
316c30d9 | 3934 | goto out_pci_disable_device; |
cc2a8ea8 | 3935 | } |
316c30d9 AK |
3936 | } |
3937 | ||
3938 | err = pci_request_regions(pdev, DRV_NAME); | |
3939 | if (err) | |
3940 | goto out_pci_disable_device; | |
3941 | ||
3942 | pci_set_drvdata(pdev, priv); | |
3943 | ||
316c30d9 AK |
3944 | |
3945 | /*********************** | |
3946 | * 3. Read REV register | |
3947 | ***********************/ | |
3948 | priv->hw_base = pci_iomap(pdev, 0, 0); | |
3949 | if (!priv->hw_base) { | |
3950 | err = -ENODEV; | |
3951 | goto out_pci_release_regions; | |
3952 | } | |
3953 | ||
3954 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
3955 | (unsigned long long) pci_resource_len(pdev, 0)); | |
3956 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
3957 | ||
b661c819 | 3958 | iwl_hw_detect(priv); |
316c30d9 | 3959 | printk(KERN_INFO DRV_NAME |
b661c819 TW |
3960 | ": Detected Intel Wireless WiFi Link %s REV=0x%X\n", |
3961 | priv->cfg->name, priv->hw_rev); | |
316c30d9 | 3962 | |
e7b63581 TW |
3963 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
3964 | * PCI Tx retries from interfering with C3 CPU state */ | |
3965 | pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); | |
3966 | ||
91238714 TW |
3967 | /* amp init */ |
3968 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
316c30d9 | 3969 | if (err < 0) { |
91238714 | 3970 | IWL_DEBUG_INFO("Failed to init APMG\n"); |
316c30d9 AK |
3971 | goto out_iounmap; |
3972 | } | |
91238714 TW |
3973 | /***************** |
3974 | * 4. Read EEPROM | |
3975 | *****************/ | |
316c30d9 AK |
3976 | /* Read the EEPROM */ |
3977 | err = iwl_eeprom_init(priv); | |
3978 | if (err) { | |
3979 | IWL_ERROR("Unable to init EEPROM\n"); | |
3980 | goto out_iounmap; | |
3981 | } | |
8614f360 TW |
3982 | err = iwl_eeprom_check_version(priv); |
3983 | if (err) | |
3984 | goto out_iounmap; | |
3985 | ||
02883017 | 3986 | /* extract MAC Address */ |
316c30d9 | 3987 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
e174961c | 3988 | IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr); |
316c30d9 AK |
3989 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
3990 | ||
3991 | /************************ | |
3992 | * 5. Setup HW constants | |
3993 | ************************/ | |
da154e30 | 3994 | if (iwl_set_hw_params(priv)) { |
5425e490 | 3995 | IWL_ERROR("failed to set hw parameters\n"); |
073d3f5f | 3996 | goto out_free_eeprom; |
316c30d9 AK |
3997 | } |
3998 | ||
3999 | /******************* | |
6ba87956 | 4000 | * 6. Setup priv |
316c30d9 | 4001 | *******************/ |
b481de9c | 4002 | |
6ba87956 | 4003 | err = iwl_init_drv(priv); |
bf85ea4f | 4004 | if (err) |
399f4900 | 4005 | goto out_free_eeprom; |
bf85ea4f | 4006 | /* At this point both hw and priv are initialized. */ |
316c30d9 AK |
4007 | |
4008 | /********************************** | |
4009 | * 7. Initialize module parameters | |
4010 | **********************************/ | |
4011 | ||
4012 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
1ea87396 | 4013 | if (priv->cfg->mod_params->disable) { |
316c30d9 AK |
4014 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
4015 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
4016 | } | |
4017 | ||
316c30d9 AK |
4018 | /******************** |
4019 | * 8. Setup services | |
4020 | ********************/ | |
0359facc | 4021 | spin_lock_irqsave(&priv->lock, flags); |
5b9f8cd3 | 4022 | iwl_disable_interrupts(priv); |
0359facc | 4023 | spin_unlock_irqrestore(&priv->lock, flags); |
316c30d9 | 4024 | |
5b9f8cd3 | 4025 | err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group); |
316c30d9 AK |
4026 | if (err) { |
4027 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
6ba87956 | 4028 | goto out_uninit_drv; |
316c30d9 AK |
4029 | } |
4030 | ||
316c30d9 | 4031 | |
4e39317d | 4032 | iwl_setup_deferred_work(priv); |
653fa4a0 | 4033 | iwl_setup_rx_handlers(priv); |
316c30d9 AK |
4034 | |
4035 | /******************** | |
4036 | * 9. Conclude | |
4037 | ********************/ | |
5a66926a ZY |
4038 | pci_save_state(pdev); |
4039 | pci_disable_device(pdev); | |
b481de9c | 4040 | |
6ba87956 TW |
4041 | /********************************** |
4042 | * 10. Setup and register mac80211 | |
4043 | **********************************/ | |
4044 | ||
4045 | err = iwl_setup_mac(priv); | |
4046 | if (err) | |
4047 | goto out_remove_sysfs; | |
4048 | ||
4049 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
4050 | if (err) | |
4051 | IWL_ERROR("failed to create debugfs files\n"); | |
4052 | ||
58d0f361 EG |
4053 | err = iwl_rfkill_init(priv); |
4054 | if (err) | |
4055 | IWL_ERROR("Unable to initialize RFKILL system. " | |
4056 | "Ignoring error: %d\n", err); | |
4057 | iwl_power_initialize(priv); | |
b481de9c ZY |
4058 | return 0; |
4059 | ||
316c30d9 | 4060 | out_remove_sysfs: |
5b9f8cd3 | 4061 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
6ba87956 TW |
4062 | out_uninit_drv: |
4063 | iwl_uninit_drv(priv); | |
073d3f5f TW |
4064 | out_free_eeprom: |
4065 | iwl_eeprom_free(priv); | |
b481de9c ZY |
4066 | out_iounmap: |
4067 | pci_iounmap(pdev, priv->hw_base); | |
4068 | out_pci_release_regions: | |
4069 | pci_release_regions(pdev); | |
316c30d9 | 4070 | pci_set_drvdata(pdev, NULL); |
b481de9c ZY |
4071 | out_pci_disable_device: |
4072 | pci_disable_device(pdev); | |
b481de9c ZY |
4073 | out_ieee80211_free_hw: |
4074 | ieee80211_free_hw(priv->hw); | |
4075 | out: | |
4076 | return err; | |
4077 | } | |
4078 | ||
5b9f8cd3 | 4079 | static void __devexit iwl_pci_remove(struct pci_dev *pdev) |
b481de9c | 4080 | { |
c79dd5b5 | 4081 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
0359facc | 4082 | unsigned long flags; |
b481de9c ZY |
4083 | |
4084 | if (!priv) | |
4085 | return; | |
4086 | ||
4087 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
4088 | ||
67249625 | 4089 | iwl_dbgfs_unregister(priv); |
5b9f8cd3 | 4090 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
67249625 | 4091 | |
5b9f8cd3 EG |
4092 | /* ieee80211_unregister_hw call wil cause iwl_mac_stop to |
4093 | * to be called and iwl_down since we are removing the device | |
0b124c31 GG |
4094 | * we need to set STATUS_EXIT_PENDING bit. |
4095 | */ | |
4096 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
c4f55232 RR |
4097 | if (priv->mac80211_registered) { |
4098 | ieee80211_unregister_hw(priv->hw); | |
4099 | priv->mac80211_registered = 0; | |
0b124c31 | 4100 | } else { |
5b9f8cd3 | 4101 | iwl_down(priv); |
c4f55232 RR |
4102 | } |
4103 | ||
0359facc MA |
4104 | /* make sure we flush any pending irq or |
4105 | * tasklet for the driver | |
4106 | */ | |
4107 | spin_lock_irqsave(&priv->lock, flags); | |
5b9f8cd3 | 4108 | iwl_disable_interrupts(priv); |
0359facc MA |
4109 | spin_unlock_irqrestore(&priv->lock, flags); |
4110 | ||
4111 | iwl_synchronize_irq(priv); | |
4112 | ||
58d0f361 | 4113 | iwl_rfkill_unregister(priv); |
5b9f8cd3 | 4114 | iwl_dealloc_ucode_pci(priv); |
b481de9c ZY |
4115 | |
4116 | if (priv->rxq.bd) | |
a55360e4 | 4117 | iwl_rx_queue_free(priv, &priv->rxq); |
1053d35f | 4118 | iwl_hw_txq_ctx_free(priv); |
b481de9c | 4119 | |
37deb2a0 | 4120 | iwl_clear_stations_table(priv); |
073d3f5f | 4121 | iwl_eeprom_free(priv); |
b481de9c | 4122 | |
b481de9c | 4123 | |
948c171c MA |
4124 | /*netif_stop_queue(dev); */ |
4125 | flush_workqueue(priv->workqueue); | |
4126 | ||
5b9f8cd3 | 4127 | /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes |
b481de9c ZY |
4128 | * priv->workqueue... so we can't take down the workqueue |
4129 | * until now... */ | |
4130 | destroy_workqueue(priv->workqueue); | |
4131 | priv->workqueue = NULL; | |
4132 | ||
b481de9c ZY |
4133 | pci_iounmap(pdev, priv->hw_base); |
4134 | pci_release_regions(pdev); | |
4135 | pci_disable_device(pdev); | |
4136 | pci_set_drvdata(pdev, NULL); | |
4137 | ||
6ba87956 | 4138 | iwl_uninit_drv(priv); |
b481de9c ZY |
4139 | |
4140 | if (priv->ibss_beacon) | |
4141 | dev_kfree_skb(priv->ibss_beacon); | |
4142 | ||
4143 | ieee80211_free_hw(priv->hw); | |
4144 | } | |
4145 | ||
4146 | #ifdef CONFIG_PM | |
4147 | ||
5b9f8cd3 | 4148 | static int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 4149 | { |
c79dd5b5 | 4150 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 4151 | |
e655b9f0 ZY |
4152 | if (priv->is_open) { |
4153 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
5b9f8cd3 | 4154 | iwl_mac_stop(priv->hw); |
e655b9f0 ZY |
4155 | priv->is_open = 1; |
4156 | } | |
b481de9c | 4157 | |
b481de9c ZY |
4158 | pci_set_power_state(pdev, PCI_D3hot); |
4159 | ||
b481de9c ZY |
4160 | return 0; |
4161 | } | |
4162 | ||
5b9f8cd3 | 4163 | static int iwl_pci_resume(struct pci_dev *pdev) |
b481de9c | 4164 | { |
c79dd5b5 | 4165 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 4166 | |
b481de9c | 4167 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 4168 | |
e655b9f0 | 4169 | if (priv->is_open) |
5b9f8cd3 | 4170 | iwl_mac_start(priv->hw); |
b481de9c | 4171 | |
e655b9f0 | 4172 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
4173 | return 0; |
4174 | } | |
4175 | ||
4176 | #endif /* CONFIG_PM */ | |
4177 | ||
4178 | /***************************************************************************** | |
4179 | * | |
4180 | * driver and module entry point | |
4181 | * | |
4182 | *****************************************************************************/ | |
4183 | ||
fed9017e RR |
4184 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
4185 | static struct pci_device_id iwl_hw_card_ids[] = { | |
4fc22b21 | 4186 | #ifdef CONFIG_IWL4965 |
fed9017e RR |
4187 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, |
4188 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
4fc22b21 | 4189 | #endif /* CONFIG_IWL4965 */ |
5a6a256e | 4190 | #ifdef CONFIG_IWL5000 |
47408639 EK |
4191 | {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)}, |
4192 | {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)}, | |
4193 | {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, | |
4194 | {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, | |
4195 | {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, | |
4196 | {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, | |
5a6a256e | 4197 | {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, |
47408639 EK |
4198 | {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, |
4199 | {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)}, | |
4200 | {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)}, | |
e96a8495 TW |
4201 | /* 5350 WiFi/WiMax */ |
4202 | {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, | |
4203 | {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, | |
4204 | {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, | |
5a6a256e | 4205 | #endif /* CONFIG_IWL5000 */ |
fed9017e RR |
4206 | {0} |
4207 | }; | |
4208 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); | |
4209 | ||
4210 | static struct pci_driver iwl_driver = { | |
b481de9c | 4211 | .name = DRV_NAME, |
fed9017e | 4212 | .id_table = iwl_hw_card_ids, |
5b9f8cd3 EG |
4213 | .probe = iwl_pci_probe, |
4214 | .remove = __devexit_p(iwl_pci_remove), | |
b481de9c | 4215 | #ifdef CONFIG_PM |
5b9f8cd3 EG |
4216 | .suspend = iwl_pci_suspend, |
4217 | .resume = iwl_pci_resume, | |
b481de9c ZY |
4218 | #endif |
4219 | }; | |
4220 | ||
5b9f8cd3 | 4221 | static int __init iwl_init(void) |
b481de9c ZY |
4222 | { |
4223 | ||
4224 | int ret; | |
4225 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
4226 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 | 4227 | |
e227ceac | 4228 | ret = iwlagn_rate_control_register(); |
897e1cf2 RC |
4229 | if (ret) { |
4230 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
4231 | return ret; | |
4232 | } | |
4233 | ||
fed9017e | 4234 | ret = pci_register_driver(&iwl_driver); |
b481de9c ZY |
4235 | if (ret) { |
4236 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 4237 | goto error_register; |
b481de9c | 4238 | } |
b481de9c ZY |
4239 | |
4240 | return ret; | |
897e1cf2 | 4241 | |
897e1cf2 | 4242 | error_register: |
e227ceac | 4243 | iwlagn_rate_control_unregister(); |
897e1cf2 | 4244 | return ret; |
b481de9c ZY |
4245 | } |
4246 | ||
5b9f8cd3 | 4247 | static void __exit iwl_exit(void) |
b481de9c | 4248 | { |
fed9017e | 4249 | pci_unregister_driver(&iwl_driver); |
e227ceac | 4250 | iwlagn_rate_control_unregister(); |
b481de9c ZY |
4251 | } |
4252 | ||
5b9f8cd3 EG |
4253 | module_exit(iwl_exit); |
4254 | module_init(iwl_init); |