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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
32 | #include <linux/version.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/dma-mapping.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/skbuff.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/wireless.h> | |
40 | #include <linux/firmware.h> | |
b481de9c ZY |
41 | #include <linux/etherdevice.h> |
42 | #include <linux/if_arp.h> | |
43 | ||
b481de9c ZY |
44 | #include <net/mac80211.h> |
45 | ||
46 | #include <asm/div64.h> | |
47 | ||
6bc913bd | 48 | #include "iwl-eeprom.h" |
3e0d4cb1 | 49 | #include "iwl-dev.h" |
fee1247a | 50 | #include "iwl-core.h" |
3395f6e9 | 51 | #include "iwl-io.h" |
b481de9c | 52 | #include "iwl-helpers.h" |
6974e363 | 53 | #include "iwl-sta.h" |
f0832f13 | 54 | #include "iwl-calib.h" |
b481de9c | 55 | |
416e1438 | 56 | |
b481de9c ZY |
57 | /****************************************************************************** |
58 | * | |
59 | * module boiler plate | |
60 | * | |
61 | ******************************************************************************/ | |
62 | ||
b481de9c ZY |
63 | /* |
64 | * module name, copyright, version, etc. | |
65 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
66 | */ | |
67 | ||
68 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux" | |
69 | ||
0a6857e7 | 70 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
71 | #define VD "d" |
72 | #else | |
73 | #define VD | |
74 | #endif | |
75 | ||
c8b0e6e1 | 76 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
77 | #define VS "s" |
78 | #else | |
79 | #define VS | |
80 | #endif | |
81 | ||
df48c323 | 82 | #define DRV_VERSION IWLWIFI_VERSION VD VS |
b481de9c | 83 | |
b481de9c ZY |
84 | |
85 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
86 | MODULE_VERSION(DRV_VERSION); | |
87 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
88 | MODULE_LICENSE("GPL"); | |
89 | ||
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 | |
deb09c43 EG |
99 | static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
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 | /** |
bb8c093b | 111 | * iwl4965_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 | */ | |
c1adf9fb | 117 | static int iwl4965_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) { | |
bb8c093b | 177 | IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
178 | return -1; |
179 | } | |
180 | return 0; | |
181 | } | |
182 | ||
183 | /** | |
9fbab516 | 184 | * iwl4965_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 | */ |
c79dd5b5 | 191 | static int iwl4965_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) || | |
210 | (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) || | |
211 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
212 | return 1; | |
213 | ||
214 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
215 | * be updated with the RXON_ASSOC command -- however only some | |
216 | * flag transitions are allowed using RXON_ASSOC */ | |
217 | ||
218 | /* Check if we are not switching bands */ | |
219 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
220 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
221 | return 1; | |
222 | ||
223 | /* Check if we are switching association toggle */ | |
224 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
225 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
226 | return 1; | |
227 | ||
228 | return 0; | |
229 | } | |
230 | ||
b481de9c | 231 | /** |
bb8c093b | 232 | * iwl4965_commit_rxon - commit staging_rxon to hardware |
b481de9c | 233 | * |
01ebd063 | 234 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
235 | * the active_rxon structure is updated with the new data. This |
236 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
237 | * a HW tune is required based on the RXON structure changes. | |
238 | */ | |
c79dd5b5 | 239 | static int iwl4965_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
240 | { |
241 | /* cast away the const for active_rxon in this function */ | |
c1adf9fb | 242 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
0795af57 | 243 | DECLARE_MAC_BUF(mac); |
43d59b32 EG |
244 | int ret; |
245 | bool new_assoc = | |
246 | !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK); | |
b481de9c | 247 | |
fee1247a | 248 | if (!iwl_is_alive(priv)) |
43d59b32 | 249 | return -EBUSY; |
b481de9c ZY |
250 | |
251 | /* always get timestamp with Rx frame */ | |
252 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
253 | ||
43d59b32 EG |
254 | ret = iwl4965_check_rxon_cmd(&priv->staging_rxon); |
255 | if (ret) { | |
b481de9c ZY |
256 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); |
257 | return -EINVAL; | |
258 | } | |
259 | ||
260 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 261 | * iwl4965_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 262 | * and other flags for the current radio configuration. */ |
bb8c093b | 263 | if (!iwl4965_full_rxon_required(priv)) { |
43d59b32 EG |
264 | ret = iwl_send_rxon_assoc(priv); |
265 | if (ret) { | |
266 | IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret); | |
267 | return ret; | |
b481de9c ZY |
268 | } |
269 | ||
270 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
271 | return 0; |
272 | } | |
273 | ||
274 | /* station table will be cleared */ | |
275 | priv->assoc_station_added = 0; | |
276 | ||
b481de9c ZY |
277 | /* If we are currently associated and the new config requires |
278 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
279 | * we must clear the associated from the active configuration | |
280 | * before we apply the new config */ | |
43d59b32 | 281 | if (iwl_is_associated(priv) && new_assoc) { |
b481de9c ZY |
282 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); |
283 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
284 | ||
43d59b32 | 285 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 286 | sizeof(struct iwl_rxon_cmd), |
b481de9c ZY |
287 | &priv->active_rxon); |
288 | ||
289 | /* If the mask clearing failed then we set | |
290 | * active_rxon back to what it was previously */ | |
43d59b32 | 291 | if (ret) { |
b481de9c | 292 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; |
43d59b32 EG |
293 | IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret); |
294 | return ret; | |
b481de9c | 295 | } |
b481de9c ZY |
296 | } |
297 | ||
298 | IWL_DEBUG_INFO("Sending RXON\n" | |
299 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
300 | "* channel = %d\n" | |
0795af57 | 301 | "* bssid = %s\n", |
43d59b32 | 302 | (new_assoc ? "" : "out"), |
b481de9c | 303 | le16_to_cpu(priv->staging_rxon.channel), |
0795af57 | 304 | print_mac(mac, priv->staging_rxon.bssid_addr)); |
b481de9c | 305 | |
099b40b7 | 306 | iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
43d59b32 EG |
307 | |
308 | /* Apply the new configuration | |
309 | * RXON unassoc clears the station table in uCode, send it before | |
310 | * we add the bcast station. If assoc bit is set, we will send RXON | |
311 | * after having added the bcast and bssid station. | |
312 | */ | |
313 | if (!new_assoc) { | |
314 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
c1adf9fb | 315 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
43d59b32 EG |
316 | if (ret) { |
317 | IWL_ERROR("Error setting new RXON (%d)\n", ret); | |
318 | return ret; | |
319 | } | |
320 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
321 | } |
322 | ||
37deb2a0 | 323 | iwl_clear_stations_table(priv); |
556f8db7 | 324 | |
b481de9c ZY |
325 | if (!priv->error_recovering) |
326 | priv->start_calib = 0; | |
327 | ||
f0832f13 | 328 | iwl_init_sensitivity(priv); |
b481de9c | 329 | |
b481de9c ZY |
330 | /* If we issue a new RXON command which required a tune then we must |
331 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
43d59b32 EG |
332 | ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); |
333 | if (ret) { | |
334 | IWL_ERROR("Error sending TX power (%d)\n", ret); | |
335 | return ret; | |
b481de9c ZY |
336 | } |
337 | ||
338 | /* Add the broadcast address so we can send broadcast frames */ | |
4f40e4d9 | 339 | if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == |
43d59b32 | 340 | IWL_INVALID_STATION) { |
b481de9c ZY |
341 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); |
342 | return -EIO; | |
343 | } | |
344 | ||
345 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
346 | * add the IWL_AP_ID to the station rate table */ | |
9185159d TW |
347 | if (new_assoc) { |
348 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) { | |
349 | ret = iwl_rxon_add_station(priv, | |
350 | priv->active_rxon.bssid_addr, 1); | |
351 | if (ret == IWL_INVALID_STATION) { | |
352 | IWL_ERROR("Error adding AP address for TX.\n"); | |
353 | return -EIO; | |
354 | } | |
355 | priv->assoc_station_added = 1; | |
356 | if (priv->default_wep_key && | |
357 | iwl_send_static_wepkey_cmd(priv, 0)) | |
358 | IWL_ERROR("Could not send WEP static key.\n"); | |
b481de9c | 359 | } |
43d59b32 EG |
360 | |
361 | /* Apply the new configuration | |
362 | * RXON assoc doesn't clear the station table in uCode, | |
363 | */ | |
364 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
365 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); | |
366 | if (ret) { | |
367 | IWL_ERROR("Error setting new RXON (%d)\n", ret); | |
368 | return ret; | |
369 | } | |
370 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
371 | } |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
5da4b55f MA |
376 | void iwl4965_update_chain_flags(struct iwl_priv *priv) |
377 | { | |
378 | ||
c7de35cd | 379 | iwl_set_rxon_chain(priv); |
5da4b55f MA |
380 | iwl4965_commit_rxon(priv); |
381 | } | |
382 | ||
c79dd5b5 | 383 | static int iwl4965_send_bt_config(struct iwl_priv *priv) |
b481de9c | 384 | { |
bb8c093b | 385 | struct iwl4965_bt_cmd bt_cmd = { |
b481de9c ZY |
386 | .flags = 3, |
387 | .lead_time = 0xAA, | |
388 | .max_kill = 1, | |
389 | .kill_ack_mask = 0, | |
390 | .kill_cts_mask = 0, | |
391 | }; | |
392 | ||
857485c0 | 393 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
bb8c093b | 394 | sizeof(struct iwl4965_bt_cmd), &bt_cmd); |
b481de9c ZY |
395 | } |
396 | ||
fcab423d | 397 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
398 | { |
399 | struct list_head *element; | |
400 | ||
401 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
402 | priv->frames_count); | |
403 | ||
404 | while (!list_empty(&priv->free_frames)) { | |
405 | element = priv->free_frames.next; | |
406 | list_del(element); | |
fcab423d | 407 | kfree(list_entry(element, struct iwl_frame, list)); |
b481de9c ZY |
408 | priv->frames_count--; |
409 | } | |
410 | ||
411 | if (priv->frames_count) { | |
412 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
413 | priv->frames_count); | |
414 | priv->frames_count = 0; | |
415 | } | |
416 | } | |
417 | ||
fcab423d | 418 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
b481de9c | 419 | { |
fcab423d | 420 | struct iwl_frame *frame; |
b481de9c ZY |
421 | struct list_head *element; |
422 | if (list_empty(&priv->free_frames)) { | |
423 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
424 | if (!frame) { | |
425 | IWL_ERROR("Could not allocate frame!\n"); | |
426 | return NULL; | |
427 | } | |
428 | ||
429 | priv->frames_count++; | |
430 | return frame; | |
431 | } | |
432 | ||
433 | element = priv->free_frames.next; | |
434 | list_del(element); | |
fcab423d | 435 | return list_entry(element, struct iwl_frame, list); |
b481de9c ZY |
436 | } |
437 | ||
fcab423d | 438 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
b481de9c ZY |
439 | { |
440 | memset(frame, 0, sizeof(*frame)); | |
441 | list_add(&frame->list, &priv->free_frames); | |
442 | } | |
443 | ||
c79dd5b5 | 444 | unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv, |
b481de9c ZY |
445 | struct ieee80211_hdr *hdr, |
446 | const u8 *dest, int left) | |
447 | { | |
448 | ||
3109ece1 | 449 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
b481de9c ZY |
450 | ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) && |
451 | (priv->iw_mode != IEEE80211_IF_TYPE_AP))) | |
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 | ||
39e88504 | 462 | static u8 iwl4965_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) | |
469 | rate_mask = priv->active_rate_basic & 0xF; | |
470 | else | |
471 | rate_mask = priv->active_rate_basic & 0xFF0; | |
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 | ||
c79dd5b5 | 487 | static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 488 | { |
fcab423d | 489 | struct iwl_frame *frame; |
b481de9c ZY |
490 | unsigned int frame_size; |
491 | int rc; | |
492 | u8 rate; | |
493 | ||
fcab423d | 494 | frame = iwl_get_free_frame(priv); |
b481de9c ZY |
495 | |
496 | if (!frame) { | |
497 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
498 | "command.\n"); | |
499 | return -ENOMEM; | |
500 | } | |
501 | ||
39e88504 | 502 | rate = iwl4965_rate_get_lowest_plcp(priv); |
b481de9c | 503 | |
bb8c093b | 504 | frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 505 | |
857485c0 | 506 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
507 | &frame->u.cmd[0]); |
508 | ||
fcab423d | 509 | iwl_free_frame(priv, frame); |
b481de9c ZY |
510 | |
511 | return rc; | |
512 | } | |
513 | ||
b481de9c ZY |
514 | /****************************************************************************** |
515 | * | |
516 | * Misc. internal state and helper functions | |
517 | * | |
518 | ******************************************************************************/ | |
b481de9c | 519 | |
d1141dfb EG |
520 | static void iwl4965_ht_conf(struct iwl_priv *priv, |
521 | struct ieee80211_bss_conf *bss_conf) | |
522 | { | |
523 | struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf; | |
524 | struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf; | |
525 | struct iwl_ht_info *iwl_conf = &priv->current_ht_config; | |
526 | ||
527 | IWL_DEBUG_MAC80211("enter: \n"); | |
528 | ||
529 | iwl_conf->is_ht = bss_conf->assoc_ht; | |
530 | ||
531 | if (!iwl_conf->is_ht) | |
532 | return; | |
533 | ||
534 | priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
535 | ||
536 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) | |
a9841013 | 537 | iwl_conf->sgf |= HT_SHORT_GI_20MHZ; |
d1141dfb | 538 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) |
a9841013 | 539 | iwl_conf->sgf |= HT_SHORT_GI_40MHZ; |
d1141dfb EG |
540 | |
541 | iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); | |
542 | iwl_conf->max_amsdu_size = | |
543 | !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); | |
544 | ||
545 | iwl_conf->supported_chan_width = | |
546 | !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH); | |
547 | iwl_conf->extension_chan_offset = | |
548 | ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET; | |
549 | /* If no above or below channel supplied disable FAT channel */ | |
963f5517 EG |
550 | if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE && |
551 | iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) { | |
552 | iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE; | |
d1141dfb | 553 | iwl_conf->supported_chan_width = 0; |
963f5517 | 554 | } |
d1141dfb EG |
555 | |
556 | iwl_conf->tx_mimo_ps_mode = | |
557 | (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
558 | memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16); | |
559 | ||
560 | iwl_conf->control_channel = ht_bss_conf->primary_channel; | |
561 | iwl_conf->tx_chan_width = | |
562 | !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH); | |
563 | iwl_conf->ht_protection = | |
564 | ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION; | |
565 | iwl_conf->non_GF_STA_present = | |
566 | !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT); | |
567 | ||
568 | IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel); | |
569 | IWL_DEBUG_MAC80211("leave\n"); | |
570 | } | |
571 | ||
b481de9c ZY |
572 | /* |
573 | * QoS support | |
574 | */ | |
c79dd5b5 | 575 | static int iwl4965_send_qos_params_command(struct iwl_priv *priv, |
bb8c093b | 576 | struct iwl4965_qosparam_cmd *qos) |
b481de9c ZY |
577 | { |
578 | ||
857485c0 | 579 | return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
bb8c093b | 580 | sizeof(struct iwl4965_qosparam_cmd), qos); |
b481de9c ZY |
581 | } |
582 | ||
c79dd5b5 | 583 | static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force) |
b481de9c ZY |
584 | { |
585 | unsigned long flags; | |
586 | ||
b481de9c ZY |
587 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
588 | return; | |
589 | ||
590 | if (!priv->qos_data.qos_enable) | |
591 | return; | |
592 | ||
593 | spin_lock_irqsave(&priv->lock, flags); | |
594 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
595 | ||
596 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
597 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
598 | priv->qos_data.def_qos_parm.qos_flags |= | |
599 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
b481de9c ZY |
600 | if (priv->qos_data.qos_active) |
601 | priv->qos_data.def_qos_parm.qos_flags |= | |
602 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
603 | ||
fd105e79 | 604 | if (priv->current_ht_config.is_ht) |
f1f1f5c7 | 605 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
f1f1f5c7 | 606 | |
b481de9c ZY |
607 | spin_unlock_irqrestore(&priv->lock, flags); |
608 | ||
3109ece1 | 609 | if (force || iwl_is_associated(priv)) { |
f1f1f5c7 TW |
610 | IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
611 | priv->qos_data.qos_active, | |
612 | priv->qos_data.def_qos_parm.qos_flags); | |
b481de9c | 613 | |
bb8c093b | 614 | iwl4965_send_qos_params_command(priv, |
b481de9c ZY |
615 | &(priv->qos_data.def_qos_parm)); |
616 | } | |
617 | } | |
618 | ||
b481de9c ZY |
619 | #define MAX_UCODE_BEACON_INTERVAL 4096 |
620 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
621 | ||
bb8c093b | 622 | static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
623 | { |
624 | u16 new_val = 0; | |
625 | u16 beacon_factor = 0; | |
626 | ||
627 | beacon_factor = | |
628 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
629 | / MAX_UCODE_BEACON_INTERVAL; | |
630 | new_val = beacon_val / beacon_factor; | |
631 | ||
632 | return cpu_to_le16(new_val); | |
633 | } | |
634 | ||
c79dd5b5 | 635 | static void iwl4965_setup_rxon_timing(struct iwl_priv *priv) |
b481de9c ZY |
636 | { |
637 | u64 interval_tm_unit; | |
638 | u64 tsf, result; | |
639 | unsigned long flags; | |
640 | struct ieee80211_conf *conf = NULL; | |
641 | u16 beacon_int = 0; | |
642 | ||
643 | conf = ieee80211_get_hw_conf(priv->hw); | |
644 | ||
645 | spin_lock_irqsave(&priv->lock, flags); | |
3109ece1 TW |
646 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32); |
647 | priv->rxon_timing.timestamp.dw[0] = | |
648 | cpu_to_le32(priv->timestamp & 0xFFFFFFFF); | |
b481de9c ZY |
649 | |
650 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
651 | ||
3109ece1 | 652 | tsf = priv->timestamp; |
b481de9c ZY |
653 | |
654 | beacon_int = priv->beacon_int; | |
655 | spin_unlock_irqrestore(&priv->lock, flags); | |
656 | ||
657 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) { | |
658 | if (beacon_int == 0) { | |
659 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
660 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
661 | } else { | |
662 | priv->rxon_timing.beacon_interval = | |
663 | cpu_to_le16(beacon_int); | |
664 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 665 | iwl4965_adjust_beacon_interval( |
b481de9c ZY |
666 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
667 | } | |
668 | ||
669 | priv->rxon_timing.atim_window = 0; | |
670 | } else { | |
671 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 672 | iwl4965_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
673 | /* TODO: we need to get atim_window from upper stack |
674 | * for now we set to 0 */ | |
675 | priv->rxon_timing.atim_window = 0; | |
676 | } | |
677 | ||
678 | interval_tm_unit = | |
679 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
680 | result = do_div(tsf, interval_tm_unit); | |
681 | priv->rxon_timing.beacon_init_val = | |
682 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
683 | ||
684 | IWL_DEBUG_ASSOC | |
685 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
686 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
687 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
688 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
689 | } | |
690 | ||
82a66bbb TW |
691 | static void iwl_set_flags_for_band(struct iwl_priv *priv, |
692 | enum ieee80211_band band) | |
b481de9c | 693 | { |
8318d78a | 694 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
695 | priv->staging_rxon.flags &= |
696 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
697 | | RXON_FLG_CCK_MSK); | |
698 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
699 | } else { | |
508e32e1 | 700 | /* Copied from iwl4965_post_associate() */ |
b481de9c ZY |
701 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
702 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
703 | else | |
704 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
705 | ||
706 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
707 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
708 | ||
709 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
710 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
711 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
712 | } | |
713 | } | |
714 | ||
715 | /* | |
01ebd063 | 716 | * initialize rxon structure with default values from eeprom |
b481de9c | 717 | */ |
c79dd5b5 | 718 | static void iwl4965_connection_init_rx_config(struct iwl_priv *priv) |
b481de9c | 719 | { |
bf85ea4f | 720 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
721 | |
722 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
723 | ||
724 | switch (priv->iw_mode) { | |
725 | case IEEE80211_IF_TYPE_AP: | |
726 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; | |
727 | break; | |
728 | ||
729 | case IEEE80211_IF_TYPE_STA: | |
730 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; | |
731 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
732 | break; | |
733 | ||
734 | case IEEE80211_IF_TYPE_IBSS: | |
735 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; | |
736 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
737 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
738 | RXON_FILTER_ACCEPT_GRP_MSK; | |
739 | break; | |
740 | ||
741 | case IEEE80211_IF_TYPE_MNTR: | |
742 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; | |
743 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
744 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
745 | break; | |
69dc5d9d TW |
746 | default: |
747 | IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode); | |
748 | break; | |
b481de9c ZY |
749 | } |
750 | ||
751 | #if 0 | |
752 | /* TODO: Figure out when short_preamble would be set and cache from | |
753 | * that */ | |
754 | if (!hw_to_local(priv->hw)->short_preamble) | |
755 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
756 | else | |
757 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
758 | #endif | |
759 | ||
8622e705 | 760 | ch_info = iwl_get_channel_info(priv, priv->band, |
b481de9c ZY |
761 | le16_to_cpu(priv->staging_rxon.channel)); |
762 | ||
763 | if (!ch_info) | |
764 | ch_info = &priv->channel_info[0]; | |
765 | ||
766 | /* | |
767 | * in some case A channels are all non IBSS | |
768 | * in this case force B/G channel | |
769 | */ | |
770 | if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && | |
771 | !(is_channel_ibss(ch_info))) | |
772 | ch_info = &priv->channel_info[0]; | |
773 | ||
774 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
8318d78a | 775 | priv->band = ch_info->band; |
b481de9c | 776 | |
82a66bbb | 777 | iwl_set_flags_for_band(priv, priv->band); |
b481de9c ZY |
778 | |
779 | priv->staging_rxon.ofdm_basic_rates = | |
780 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
781 | priv->staging_rxon.cck_basic_rates = | |
782 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
783 | ||
784 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
785 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
786 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
787 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); | |
788 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; | |
789 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; | |
c7de35cd | 790 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
791 | } |
792 | ||
c79dd5b5 | 793 | static int iwl4965_set_mode(struct iwl_priv *priv, int mode) |
b481de9c | 794 | { |
b481de9c ZY |
795 | priv->iw_mode = mode; |
796 | ||
398f9e76 AK |
797 | /* init channel/phymode to values given at driver init */ |
798 | iwl_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); | |
799 | ||
bb8c093b | 800 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
801 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
802 | ||
37deb2a0 | 803 | iwl_clear_stations_table(priv); |
b481de9c | 804 | |
fde3571f | 805 | /* dont commit rxon if rf-kill is on*/ |
fee1247a | 806 | if (!iwl_is_ready_rf(priv)) |
fde3571f MA |
807 | return -EAGAIN; |
808 | ||
809 | cancel_delayed_work(&priv->scan_check); | |
2a421b91 | 810 | if (iwl_scan_cancel_timeout(priv, 100)) { |
fde3571f MA |
811 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); |
812 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
813 | return -EAGAIN; | |
814 | } | |
815 | ||
bb8c093b | 816 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
817 | |
818 | return 0; | |
819 | } | |
820 | ||
c79dd5b5 | 821 | static void iwl4965_set_rate(struct iwl_priv *priv) |
b481de9c | 822 | { |
8318d78a | 823 | const struct ieee80211_supported_band *hw = NULL; |
b481de9c ZY |
824 | struct ieee80211_rate *rate; |
825 | int i; | |
826 | ||
d1141dfb | 827 | hw = iwl_get_hw_mode(priv, priv->band); |
c4ba9621 SA |
828 | if (!hw) { |
829 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); | |
830 | return; | |
831 | } | |
b481de9c ZY |
832 | |
833 | priv->active_rate = 0; | |
834 | priv->active_rate_basic = 0; | |
835 | ||
8318d78a JB |
836 | for (i = 0; i < hw->n_bitrates; i++) { |
837 | rate = &(hw->bitrates[i]); | |
838 | if (rate->hw_value < IWL_RATE_COUNT) | |
839 | priv->active_rate |= (1 << rate->hw_value); | |
b481de9c ZY |
840 | } |
841 | ||
842 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
843 | priv->active_rate, priv->active_rate_basic); | |
844 | ||
845 | /* | |
846 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
847 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
848 | * OFDM | |
849 | */ | |
850 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
851 | priv->staging_rxon.cck_basic_rates = | |
852 | ((priv->active_rate_basic & | |
853 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
854 | else | |
855 | priv->staging_rxon.cck_basic_rates = | |
856 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
857 | ||
858 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
859 | priv->staging_rxon.ofdm_basic_rates = | |
860 | ((priv->active_rate_basic & | |
861 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
862 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
863 | else | |
864 | priv->staging_rxon.ofdm_basic_rates = | |
865 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
866 | } | |
867 | ||
c8b0e6e1 | 868 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
869 | |
870 | #include "iwl-spectrum.h" | |
871 | ||
872 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
873 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
874 | #define TIME_UNIT 1024 | |
875 | ||
876 | /* | |
877 | * extended beacon time format | |
878 | * time in usec will be changed into a 32-bit value in 8:24 format | |
879 | * the high 1 byte is the beacon counts | |
880 | * the lower 3 bytes is the time in usec within one beacon interval | |
881 | */ | |
882 | ||
bb8c093b | 883 | static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
884 | { |
885 | u32 quot; | |
886 | u32 rem; | |
887 | u32 interval = beacon_interval * 1024; | |
888 | ||
889 | if (!interval || !usec) | |
890 | return 0; | |
891 | ||
892 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
893 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
894 | ||
895 | return (quot << 24) + rem; | |
896 | } | |
897 | ||
898 | /* base is usually what we get from ucode with each received frame, | |
899 | * the same as HW timer counter counting down | |
900 | */ | |
901 | ||
bb8c093b | 902 | static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
903 | { |
904 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
905 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
906 | u32 interval = beacon_interval * TIME_UNIT; | |
907 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
908 | (addon & BEACON_TIME_MASK_HIGH); | |
909 | ||
910 | if (base_low > addon_low) | |
911 | res += base_low - addon_low; | |
912 | else if (base_low < addon_low) { | |
913 | res += interval + base_low - addon_low; | |
914 | res += (1 << 24); | |
915 | } else | |
916 | res += (1 << 24); | |
917 | ||
918 | return cpu_to_le32(res); | |
919 | } | |
920 | ||
c79dd5b5 | 921 | static int iwl4965_get_measurement(struct iwl_priv *priv, |
b481de9c ZY |
922 | struct ieee80211_measurement_params *params, |
923 | u8 type) | |
924 | { | |
bb8c093b | 925 | struct iwl4965_spectrum_cmd spectrum; |
db11d634 | 926 | struct iwl_rx_packet *res; |
857485c0 | 927 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
928 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
929 | .data = (void *)&spectrum, | |
930 | .meta.flags = CMD_WANT_SKB, | |
931 | }; | |
932 | u32 add_time = le64_to_cpu(params->start_time); | |
933 | int rc; | |
934 | int spectrum_resp_status; | |
935 | int duration = le16_to_cpu(params->duration); | |
936 | ||
3109ece1 | 937 | if (iwl_is_associated(priv)) |
b481de9c | 938 | add_time = |
bb8c093b | 939 | iwl4965_usecs_to_beacons( |
b481de9c ZY |
940 | le64_to_cpu(params->start_time) - priv->last_tsf, |
941 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
942 | ||
943 | memset(&spectrum, 0, sizeof(spectrum)); | |
944 | ||
945 | spectrum.channel_count = cpu_to_le16(1); | |
946 | spectrum.flags = | |
947 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
948 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
949 | cmd.len = sizeof(spectrum); | |
950 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
951 | ||
3109ece1 | 952 | if (iwl_is_associated(priv)) |
b481de9c | 953 | spectrum.start_time = |
bb8c093b | 954 | iwl4965_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
955 | add_time, |
956 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
957 | else | |
958 | spectrum.start_time = 0; | |
959 | ||
960 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
961 | spectrum.channels[0].channel = params->channel; | |
962 | spectrum.channels[0].type = type; | |
963 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
964 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
965 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
966 | ||
857485c0 | 967 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
968 | if (rc) |
969 | return rc; | |
970 | ||
db11d634 | 971 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
972 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
973 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
974 | rc = -EIO; | |
975 | } | |
976 | ||
977 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
978 | switch (spectrum_resp_status) { | |
979 | case 0: /* Command will be handled */ | |
980 | if (res->u.spectrum.id != 0xff) { | |
981 | IWL_DEBUG_INFO | |
982 | ("Replaced existing measurement: %d\n", | |
983 | res->u.spectrum.id); | |
984 | priv->measurement_status &= ~MEASUREMENT_READY; | |
985 | } | |
986 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
987 | rc = 0; | |
988 | break; | |
989 | ||
990 | case 1: /* Command will not be handled */ | |
991 | rc = -EAGAIN; | |
992 | break; | |
993 | } | |
994 | ||
995 | dev_kfree_skb_any(cmd.meta.u.skb); | |
996 | ||
997 | return rc; | |
998 | } | |
999 | #endif | |
1000 | ||
b481de9c ZY |
1001 | /****************************************************************************** |
1002 | * | |
1003 | * Generic RX handler implementations | |
1004 | * | |
1005 | ******************************************************************************/ | |
885ba202 TW |
1006 | static void iwl_rx_reply_alive(struct iwl_priv *priv, |
1007 | struct iwl_rx_mem_buffer *rxb) | |
b481de9c | 1008 | { |
db11d634 | 1009 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
885ba202 | 1010 | struct iwl_alive_resp *palive; |
b481de9c ZY |
1011 | struct delayed_work *pwork; |
1012 | ||
1013 | palive = &pkt->u.alive_frame; | |
1014 | ||
1015 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
1016 | "0x%01X 0x%01X\n", | |
1017 | palive->is_valid, palive->ver_type, | |
1018 | palive->ver_subtype); | |
1019 | ||
1020 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
1021 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
1022 | memcpy(&priv->card_alive_init, | |
1023 | &pkt->u.alive_frame, | |
885ba202 | 1024 | sizeof(struct iwl_init_alive_resp)); |
b481de9c ZY |
1025 | pwork = &priv->init_alive_start; |
1026 | } else { | |
1027 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
1028 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
885ba202 | 1029 | sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
1030 | pwork = &priv->alive_start; |
1031 | } | |
1032 | ||
1033 | /* We delay the ALIVE response by 5ms to | |
1034 | * give the HW RF Kill time to activate... */ | |
1035 | if (palive->is_valid == UCODE_VALID_OK) | |
1036 | queue_delayed_work(priv->workqueue, pwork, | |
1037 | msecs_to_jiffies(5)); | |
1038 | else | |
1039 | IWL_WARNING("uCode did not respond OK.\n"); | |
1040 | } | |
1041 | ||
c79dd5b5 | 1042 | static void iwl4965_rx_reply_error(struct iwl_priv *priv, |
a55360e4 | 1043 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1044 | { |
db11d634 | 1045 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1046 | |
1047 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
1048 | "seq 0x%04X ser 0x%08X\n", | |
1049 | le32_to_cpu(pkt->u.err_resp.error_type), | |
1050 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
1051 | pkt->u.err_resp.cmd_id, | |
1052 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
1053 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
1054 | } | |
1055 | ||
1056 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
1057 | ||
a55360e4 | 1058 | static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1059 | { |
db11d634 | 1060 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
c1adf9fb | 1061 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
bb8c093b | 1062 | struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif); |
b481de9c ZY |
1063 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
1064 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
1065 | rxon->channel = csa->channel; | |
1066 | priv->staging_rxon.channel = csa->channel; | |
1067 | } | |
1068 | ||
c79dd5b5 | 1069 | static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv, |
a55360e4 | 1070 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1071 | { |
c8b0e6e1 | 1072 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
db11d634 | 1073 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1074 | struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif); |
b481de9c ZY |
1075 | |
1076 | if (!report->state) { | |
f3d67999 EK |
1077 | IWL_DEBUG(IWL_DL_11H, |
1078 | "Spectrum Measure Notification: Start\n"); | |
b481de9c ZY |
1079 | return; |
1080 | } | |
1081 | ||
1082 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
1083 | priv->measurement_status |= MEASUREMENT_READY; | |
1084 | #endif | |
1085 | } | |
1086 | ||
c79dd5b5 | 1087 | static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv, |
a55360e4 | 1088 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1089 | { |
0a6857e7 | 1090 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1091 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1092 | struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif); |
b481de9c ZY |
1093 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
1094 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
1095 | #endif | |
1096 | } | |
1097 | ||
c79dd5b5 | 1098 | static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
a55360e4 | 1099 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1100 | { |
db11d634 | 1101 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1102 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
1103 | "notification for %s:\n", | |
1104 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bf403db8 | 1105 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
1106 | } |
1107 | ||
bb8c093b | 1108 | static void iwl4965_bg_beacon_update(struct work_struct *work) |
b481de9c | 1109 | { |
c79dd5b5 TW |
1110 | struct iwl_priv *priv = |
1111 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
1112 | struct sk_buff *beacon; |
1113 | ||
1114 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 1115 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
1116 | |
1117 | if (!beacon) { | |
1118 | IWL_ERROR("update beacon failed\n"); | |
1119 | return; | |
1120 | } | |
1121 | ||
1122 | mutex_lock(&priv->mutex); | |
1123 | /* new beacon skb is allocated every time; dispose previous.*/ | |
1124 | if (priv->ibss_beacon) | |
1125 | dev_kfree_skb(priv->ibss_beacon); | |
1126 | ||
1127 | priv->ibss_beacon = beacon; | |
1128 | mutex_unlock(&priv->mutex); | |
1129 | ||
bb8c093b | 1130 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
1131 | } |
1132 | ||
4e39317d EG |
1133 | /** |
1134 | * iwl4965_bg_statistics_periodic - Timer callback to queue statistics | |
1135 | * | |
1136 | * This callback is provided in order to send a statistics request. | |
1137 | * | |
1138 | * This timer function is continually reset to execute within | |
1139 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
1140 | * was received. We need to ensure we receive the statistics in order | |
1141 | * to update the temperature used for calibrating the TXPOWER. | |
1142 | */ | |
1143 | static void iwl4965_bg_statistics_periodic(unsigned long data) | |
1144 | { | |
1145 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
1146 | ||
1147 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
1148 | return; | |
1149 | ||
1150 | iwl_send_statistics_request(priv, CMD_ASYNC); | |
1151 | } | |
1152 | ||
c79dd5b5 | 1153 | static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 1154 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1155 | { |
0a6857e7 | 1156 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1157 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1158 | struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status); |
e7d326ac | 1159 | u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); |
b481de9c ZY |
1160 | |
1161 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
1162 | "tsf %d %d rate %d\n", | |
25a6572c | 1163 | le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, |
b481de9c ZY |
1164 | beacon->beacon_notify_hdr.failure_frame, |
1165 | le32_to_cpu(beacon->ibss_mgr_status), | |
1166 | le32_to_cpu(beacon->high_tsf), | |
1167 | le32_to_cpu(beacon->low_tsf), rate); | |
1168 | #endif | |
1169 | ||
1170 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && | |
1171 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) | |
1172 | queue_work(priv->workqueue, &priv->beacon_update); | |
1173 | } | |
1174 | ||
b481de9c ZY |
1175 | /* Handle notification from uCode that card's power state is changing |
1176 | * due to software, hardware, or critical temperature RFKILL */ | |
c79dd5b5 | 1177 | static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, |
a55360e4 | 1178 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1179 | { |
db11d634 | 1180 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1181 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
1182 | unsigned long status = priv->status; | |
1183 | ||
1184 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
1185 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
1186 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
1187 | ||
1188 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | | |
1189 | RF_CARD_DISABLED)) { | |
1190 | ||
3395f6e9 | 1191 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1192 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
1193 | ||
3395f6e9 TW |
1194 | if (!iwl_grab_nic_access(priv)) { |
1195 | iwl_write_direct32( | |
b481de9c ZY |
1196 | priv, HBUS_TARG_MBX_C, |
1197 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1198 | ||
3395f6e9 | 1199 | iwl_release_nic_access(priv); |
b481de9c ZY |
1200 | } |
1201 | ||
1202 | if (!(flags & RXON_CARD_DISABLED)) { | |
3395f6e9 | 1203 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c | 1204 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3395f6e9 TW |
1205 | if (!iwl_grab_nic_access(priv)) { |
1206 | iwl_write_direct32( | |
b481de9c ZY |
1207 | priv, HBUS_TARG_MBX_C, |
1208 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1209 | ||
3395f6e9 | 1210 | iwl_release_nic_access(priv); |
b481de9c ZY |
1211 | } |
1212 | } | |
1213 | ||
1214 | if (flags & RF_CARD_DISABLED) { | |
3395f6e9 | 1215 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c | 1216 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
3395f6e9 TW |
1217 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1218 | if (!iwl_grab_nic_access(priv)) | |
1219 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1220 | } |
1221 | } | |
1222 | ||
1223 | if (flags & HW_CARD_DISABLED) | |
1224 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1225 | else | |
1226 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
1227 | ||
1228 | ||
1229 | if (flags & SW_CARD_DISABLED) | |
1230 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1231 | else | |
1232 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1233 | ||
1234 | if (!(flags & RXON_CARD_DISABLED)) | |
2a421b91 | 1235 | iwl_scan_cancel(priv); |
b481de9c ZY |
1236 | |
1237 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
1238 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
1239 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
1240 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
1241 | queue_work(priv->workqueue, &priv->rf_kill); | |
1242 | else | |
1243 | wake_up_interruptible(&priv->wait_command_queue); | |
1244 | } | |
1245 | ||
1246 | /** | |
bb8c093b | 1247 | * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
1248 | * |
1249 | * Setup the RX handlers for each of the reply types sent from the uCode | |
1250 | * to the host. | |
1251 | * | |
1252 | * This function chains into the hardware specific files for them to setup | |
1253 | * any hardware specific handlers as well. | |
1254 | */ | |
653fa4a0 | 1255 | static void iwl_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 1256 | { |
885ba202 | 1257 | priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; |
bb8c093b CH |
1258 | priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error; |
1259 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa; | |
b481de9c | 1260 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
1261 | iwl4965_rx_spectrum_measure_notif; |
1262 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif; | |
b481de9c | 1263 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
1264 | iwl4965_rx_pm_debug_statistics_notif; |
1265 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif; | |
b481de9c | 1266 | |
9fbab516 BC |
1267 | /* |
1268 | * The same handler is used for both the REPLY to a discrete | |
1269 | * statistics request from the host as well as for the periodic | |
1270 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 1271 | */ |
8f91aecb EG |
1272 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics; |
1273 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics; | |
2a421b91 TW |
1274 | |
1275 | iwl_setup_rx_scan_handlers(priv); | |
1276 | ||
37a44211 | 1277 | /* status change handler */ |
bb8c093b | 1278 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif; |
b481de9c | 1279 | |
c1354754 TW |
1280 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = |
1281 | iwl_rx_missed_beacon_notif; | |
37a44211 | 1282 | /* Rx handlers */ |
1781a07f EG |
1283 | priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy; |
1284 | priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx; | |
653fa4a0 EG |
1285 | /* block ack */ |
1286 | priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba; | |
9fbab516 | 1287 | /* Set up hardware specific Rx handlers */ |
d4789efe | 1288 | priv->cfg->ops->lib->rx_handler_setup(priv); |
b481de9c ZY |
1289 | } |
1290 | ||
5c0eef96 MA |
1291 | /* |
1292 | * this should be called while priv->lock is locked | |
1293 | */ | |
a55360e4 | 1294 | static void __iwl_rx_replenish(struct iwl_priv *priv) |
b481de9c | 1295 | { |
a55360e4 TW |
1296 | iwl_rx_allocate(priv); |
1297 | iwl_rx_queue_restock(priv); | |
b481de9c ZY |
1298 | } |
1299 | ||
b481de9c ZY |
1300 | |
1301 | /** | |
a55360e4 | 1302 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
1303 | * |
1304 | * Uses the priv->rx_handlers callback function array to invoke | |
1305 | * the appropriate handlers, including command responses, | |
1306 | * frame-received notifications, and other notifications. | |
1307 | */ | |
a55360e4 | 1308 | void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 1309 | { |
a55360e4 | 1310 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 1311 | struct iwl_rx_packet *pkt; |
a55360e4 | 1312 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
1313 | u32 r, i; |
1314 | int reclaim; | |
1315 | unsigned long flags; | |
5c0eef96 | 1316 | u8 fill_rx = 0; |
d68ab680 | 1317 | u32 count = 8; |
b481de9c | 1318 | |
6440adb5 BC |
1319 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
1320 | * buffer that the driver may process (last buffer filled by ucode). */ | |
d67f5489 | 1321 | r = priv->cfg->ops->lib->shared_mem_rx_idx(priv); |
b481de9c ZY |
1322 | i = rxq->read; |
1323 | ||
1324 | /* Rx interrupt, but nothing sent from uCode */ | |
1325 | if (i == r) | |
f3d67999 | 1326 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i); |
b481de9c | 1327 | |
a55360e4 | 1328 | if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
5c0eef96 MA |
1329 | fill_rx = 1; |
1330 | ||
b481de9c ZY |
1331 | while (i != r) { |
1332 | rxb = rxq->queue[i]; | |
1333 | ||
9fbab516 | 1334 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
1335 | * then a bug has been introduced in the queue refilling |
1336 | * routines -- catch it here */ | |
1337 | BUG_ON(rxb == NULL); | |
1338 | ||
1339 | rxq->queue[i] = NULL; | |
1340 | ||
1341 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 1342 | priv->hw_params.rx_buf_size, |
b481de9c | 1343 | PCI_DMA_FROMDEVICE); |
db11d634 | 1344 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1345 | |
1346 | /* Reclaim a command buffer only if this packet is a response | |
1347 | * to a (driver-originated) command. | |
1348 | * If the packet (e.g. Rx frame) originated from uCode, | |
1349 | * there is no command buffer to reclaim. | |
1350 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1351 | * but apparently a few don't get set; catch them here. */ | |
1352 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
1353 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 1354 | (pkt->hdr.cmd != REPLY_RX) && |
cfe01709 | 1355 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
1356 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
1357 | (pkt->hdr.cmd != REPLY_TX); | |
1358 | ||
1359 | /* Based on type of command response or notification, | |
1360 | * handle those that need handling via function in | |
bb8c093b | 1361 | * rx_handlers table. See iwl4965_setup_rx_handlers() */ |
b481de9c | 1362 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
f3d67999 EK |
1363 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r, |
1364 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
b481de9c ZY |
1365 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
1366 | } else { | |
1367 | /* No handling needed */ | |
f3d67999 | 1368 | IWL_DEBUG(IWL_DL_RX, |
b481de9c ZY |
1369 | "r %d i %d No handler needed for %s, 0x%02x\n", |
1370 | r, i, get_cmd_string(pkt->hdr.cmd), | |
1371 | pkt->hdr.cmd); | |
1372 | } | |
1373 | ||
1374 | if (reclaim) { | |
9fbab516 | 1375 | /* Invoke any callbacks, transfer the skb to caller, and |
857485c0 | 1376 | * fire off the (possibly) blocking iwl_send_cmd() |
b481de9c ZY |
1377 | * as we reclaim the driver command queue */ |
1378 | if (rxb && rxb->skb) | |
17b88929 | 1379 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
1380 | else |
1381 | IWL_WARNING("Claim null rxb?\n"); | |
1382 | } | |
1383 | ||
1384 | /* For now we just don't re-use anything. We can tweak this | |
1385 | * later to try and re-use notification packets and SKBs that | |
1386 | * fail to Rx correctly */ | |
1387 | if (rxb->skb != NULL) { | |
1388 | priv->alloc_rxb_skb--; | |
1389 | dev_kfree_skb_any(rxb->skb); | |
1390 | rxb->skb = NULL; | |
1391 | } | |
1392 | ||
1393 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 1394 | priv->hw_params.rx_buf_size, |
9ee1ba47 | 1395 | PCI_DMA_FROMDEVICE); |
b481de9c ZY |
1396 | spin_lock_irqsave(&rxq->lock, flags); |
1397 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
1398 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1399 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
1400 | /* If there are a lot of unused frames, |
1401 | * restock the Rx queue so ucode wont assert. */ | |
1402 | if (fill_rx) { | |
1403 | count++; | |
1404 | if (count >= 8) { | |
1405 | priv->rxq.read = i; | |
a55360e4 | 1406 | __iwl_rx_replenish(priv); |
5c0eef96 MA |
1407 | count = 0; |
1408 | } | |
1409 | } | |
b481de9c ZY |
1410 | } |
1411 | ||
1412 | /* Backtrack one entry */ | |
1413 | priv->rxq.read = i; | |
a55360e4 TW |
1414 | iwl_rx_queue_restock(priv); |
1415 | } | |
a55360e4 | 1416 | |
0a6857e7 | 1417 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1418 | static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv) |
b481de9c | 1419 | { |
c1adf9fb | 1420 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
0795af57 JP |
1421 | DECLARE_MAC_BUF(mac); |
1422 | ||
b481de9c | 1423 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bf403db8 | 1424 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
1425 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
1426 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
1427 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
1428 | le32_to_cpu(rxon->filter_flags)); | |
1429 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
1430 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
1431 | rxon->ofdm_basic_rates); | |
1432 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
0795af57 JP |
1433 | IWL_DEBUG_RADIO("u8[6] node_addr: %s\n", |
1434 | print_mac(mac, rxon->node_addr)); | |
1435 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n", | |
1436 | print_mac(mac, rxon->bssid_addr)); | |
b481de9c ZY |
1437 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
1438 | } | |
1439 | #endif | |
1440 | ||
c79dd5b5 | 1441 | static void iwl4965_enable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
1442 | { |
1443 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
1444 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
3395f6e9 | 1445 | iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
1446 | } |
1447 | ||
0359facc MA |
1448 | /* call this function to flush any scheduled tasklet */ |
1449 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) | |
1450 | { | |
1451 | /* wait to make sure we flush pedding tasklet*/ | |
1452 | synchronize_irq(priv->pci_dev->irq); | |
1453 | tasklet_kill(&priv->irq_tasklet); | |
1454 | } | |
1455 | ||
c79dd5b5 | 1456 | static inline void iwl4965_disable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
1457 | { |
1458 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
1459 | ||
1460 | /* disable interrupts from uCode/NIC to host */ | |
3395f6e9 | 1461 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
1462 | |
1463 | /* acknowledge/clear/reset any interrupts still pending | |
1464 | * from uCode or flow handler (Rx/Tx DMA) */ | |
3395f6e9 TW |
1465 | iwl_write32(priv, CSR_INT, 0xffffffff); |
1466 | iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
1467 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
1468 | } | |
1469 | ||
b481de9c | 1470 | |
b481de9c | 1471 | /** |
bb8c093b | 1472 | * iwl4965_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 1473 | */ |
c79dd5b5 | 1474 | static void iwl4965_irq_handle_error(struct iwl_priv *priv) |
b481de9c | 1475 | { |
bb8c093b | 1476 | /* Set the FW error flag -- cleared on iwl4965_down */ |
b481de9c ZY |
1477 | set_bit(STATUS_FW_ERROR, &priv->status); |
1478 | ||
1479 | /* Cancel currently queued command. */ | |
1480 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
1481 | ||
0a6857e7 | 1482 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1483 | if (priv->debug_level & IWL_DL_FW_ERRORS) { |
ede0cba4 | 1484 | iwl_dump_nic_error_log(priv); |
189a2b59 | 1485 | iwl_dump_nic_event_log(priv); |
bf403db8 | 1486 | iwl4965_print_rx_config_cmd(priv); |
b481de9c ZY |
1487 | } |
1488 | #endif | |
1489 | ||
1490 | wake_up_interruptible(&priv->wait_command_queue); | |
1491 | ||
1492 | /* Keep the restart process from trying to send host | |
1493 | * commands by clearing the INIT status bit */ | |
1494 | clear_bit(STATUS_READY, &priv->status); | |
1495 | ||
1496 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
f3d67999 | 1497 | IWL_DEBUG(IWL_DL_FW_ERRORS, |
b481de9c ZY |
1498 | "Restarting adapter due to uCode error.\n"); |
1499 | ||
3109ece1 | 1500 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
1501 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
1502 | sizeof(priv->recovery_rxon)); | |
1503 | priv->error_recovering = 1; | |
1504 | } | |
3a1081e8 EK |
1505 | if (priv->cfg->mod_params->restart_fw) |
1506 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
1507 | } |
1508 | } | |
1509 | ||
c79dd5b5 | 1510 | static void iwl4965_error_recovery(struct iwl_priv *priv) |
b481de9c ZY |
1511 | { |
1512 | unsigned long flags; | |
1513 | ||
1514 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
1515 | sizeof(priv->staging_rxon)); | |
1516 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 1517 | iwl4965_commit_rxon(priv); |
b481de9c | 1518 | |
4f40e4d9 | 1519 | iwl_rxon_add_station(priv, priv->bssid, 1); |
b481de9c ZY |
1520 | |
1521 | spin_lock_irqsave(&priv->lock, flags); | |
1522 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
1523 | priv->error_recovering = 0; | |
1524 | spin_unlock_irqrestore(&priv->lock, flags); | |
1525 | } | |
1526 | ||
c79dd5b5 | 1527 | static void iwl4965_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
1528 | { |
1529 | u32 inta, handled = 0; | |
1530 | u32 inta_fh; | |
1531 | unsigned long flags; | |
0a6857e7 | 1532 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
1533 | u32 inta_mask; |
1534 | #endif | |
1535 | ||
1536 | spin_lock_irqsave(&priv->lock, flags); | |
1537 | ||
1538 | /* Ack/clear/reset pending uCode interrupts. | |
1539 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1540 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
3395f6e9 TW |
1541 | inta = iwl_read32(priv, CSR_INT); |
1542 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
1543 | |
1544 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
1545 | * Any new interrupts that happen after this, either while we're | |
1546 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
3395f6e9 TW |
1547 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
1548 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 1549 | |
0a6857e7 | 1550 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1551 | if (priv->debug_level & IWL_DL_ISR) { |
9fbab516 | 1552 | /* just for debug */ |
3395f6e9 | 1553 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
b481de9c ZY |
1554 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
1555 | inta, inta_mask, inta_fh); | |
1556 | } | |
1557 | #endif | |
1558 | ||
1559 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
1560 | * atomic, make sure that inta covers all the interrupts that | |
1561 | * we've discovered, even if FH interrupt came in just after | |
1562 | * reading CSR_INT. */ | |
6f83eaa1 | 1563 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
b481de9c | 1564 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 1565 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
b481de9c ZY |
1566 | inta |= CSR_INT_BIT_FH_TX; |
1567 | ||
1568 | /* Now service all interrupt bits discovered above. */ | |
1569 | if (inta & CSR_INT_BIT_HW_ERR) { | |
1570 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
1571 | ||
1572 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 1573 | iwl4965_disable_interrupts(priv); |
b481de9c | 1574 | |
bb8c093b | 1575 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
1576 | |
1577 | handled |= CSR_INT_BIT_HW_ERR; | |
1578 | ||
1579 | spin_unlock_irqrestore(&priv->lock, flags); | |
1580 | ||
1581 | return; | |
1582 | } | |
1583 | ||
0a6857e7 | 1584 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1585 | if (priv->debug_level & (IWL_DL_ISR)) { |
b481de9c | 1586 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
1587 | if (inta & CSR_INT_BIT_SCD) |
1588 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
1589 | "the frame/frames.\n"); | |
b481de9c ZY |
1590 | |
1591 | /* Alive notification via Rx interrupt will do the real work */ | |
1592 | if (inta & CSR_INT_BIT_ALIVE) | |
1593 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
1594 | } | |
1595 | #endif | |
1596 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 1597 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 1598 | |
9fbab516 | 1599 | /* HW RF KILL switch toggled */ |
b481de9c ZY |
1600 | if (inta & CSR_INT_BIT_RF_KILL) { |
1601 | int hw_rf_kill = 0; | |
3395f6e9 | 1602 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
1603 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
1604 | hw_rf_kill = 1; | |
1605 | ||
f3d67999 | 1606 | IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n", |
b481de9c ZY |
1607 | hw_rf_kill ? "disable radio":"enable radio"); |
1608 | ||
a9efa652 EG |
1609 | /* driver only loads ucode once setting the interface up. |
1610 | * the driver as well won't allow loading if RFKILL is set | |
1611 | * therefore no need to restart the driver from this handler | |
1612 | */ | |
1613 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) | |
53e49093 | 1614 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
b481de9c ZY |
1615 | |
1616 | handled |= CSR_INT_BIT_RF_KILL; | |
1617 | } | |
1618 | ||
9fbab516 | 1619 | /* Chip got too hot and stopped itself */ |
b481de9c ZY |
1620 | if (inta & CSR_INT_BIT_CT_KILL) { |
1621 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
1622 | handled |= CSR_INT_BIT_CT_KILL; | |
1623 | } | |
1624 | ||
1625 | /* Error detected by uCode */ | |
1626 | if (inta & CSR_INT_BIT_SW_ERR) { | |
1627 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
1628 | inta); | |
bb8c093b | 1629 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
1630 | handled |= CSR_INT_BIT_SW_ERR; |
1631 | } | |
1632 | ||
1633 | /* uCode wakes up after power-down sleep */ | |
1634 | if (inta & CSR_INT_BIT_WAKEUP) { | |
1635 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
a55360e4 | 1636 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
babcebfa TW |
1637 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
1638 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
1639 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
1640 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
1641 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
1642 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
1643 | |
1644 | handled |= CSR_INT_BIT_WAKEUP; | |
1645 | } | |
1646 | ||
1647 | /* All uCode command responses, including Tx command responses, | |
1648 | * Rx "responses" (frame-received notification), and other | |
1649 | * notifications from uCode come through here*/ | |
1650 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
a55360e4 | 1651 | iwl_rx_handle(priv); |
b481de9c ZY |
1652 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
1653 | } | |
1654 | ||
1655 | if (inta & CSR_INT_BIT_FH_TX) { | |
1656 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
1657 | handled |= CSR_INT_BIT_FH_TX; | |
dbb983b7 RR |
1658 | /* FH finished to write, send event */ |
1659 | priv->ucode_write_complete = 1; | |
1660 | wake_up_interruptible(&priv->wait_command_queue); | |
b481de9c ZY |
1661 | } |
1662 | ||
1663 | if (inta & ~handled) | |
1664 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
1665 | ||
1666 | if (inta & ~CSR_INI_SET_MASK) { | |
1667 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
1668 | inta & ~CSR_INI_SET_MASK); | |
1669 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
1670 | } | |
1671 | ||
1672 | /* Re-enable all interrupts */ | |
0359facc MA |
1673 | /* only Re-enable if diabled by irq */ |
1674 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
1675 | iwl4965_enable_interrupts(priv); | |
b481de9c | 1676 | |
0a6857e7 | 1677 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1678 | if (priv->debug_level & (IWL_DL_ISR)) { |
3395f6e9 TW |
1679 | inta = iwl_read32(priv, CSR_INT); |
1680 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
1681 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
1682 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
1683 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
1684 | } | |
1685 | #endif | |
1686 | spin_unlock_irqrestore(&priv->lock, flags); | |
1687 | } | |
1688 | ||
bb8c093b | 1689 | static irqreturn_t iwl4965_isr(int irq, void *data) |
b481de9c | 1690 | { |
c79dd5b5 | 1691 | struct iwl_priv *priv = data; |
b481de9c ZY |
1692 | u32 inta, inta_mask; |
1693 | u32 inta_fh; | |
1694 | if (!priv) | |
1695 | return IRQ_NONE; | |
1696 | ||
1697 | spin_lock(&priv->lock); | |
1698 | ||
1699 | /* Disable (but don't clear!) interrupts here to avoid | |
1700 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
1701 | * If we have something to service, the tasklet will re-enable ints. | |
1702 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
3395f6e9 TW |
1703 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
1704 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
1705 | |
1706 | /* Discover which interrupts are active/pending */ | |
3395f6e9 TW |
1707 | inta = iwl_read32(priv, CSR_INT); |
1708 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
1709 | |
1710 | /* Ignore interrupt if there's nothing in NIC to service. | |
1711 | * This may be due to IRQ shared with another device, | |
1712 | * or due to sporadic interrupts thrown from our NIC. */ | |
1713 | if (!inta && !inta_fh) { | |
1714 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
1715 | goto none; | |
1716 | } | |
1717 | ||
1718 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
66fbb541 ON |
1719 | /* Hardware disappeared. It might have already raised |
1720 | * an interrupt */ | |
b481de9c | 1721 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); |
66fbb541 | 1722 | goto unplugged; |
b481de9c ZY |
1723 | } |
1724 | ||
1725 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
1726 | inta, inta_mask, inta_fh); | |
1727 | ||
25c03d8e JP |
1728 | inta &= ~CSR_INT_BIT_SCD; |
1729 | ||
bb8c093b | 1730 | /* iwl4965_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
1731 | if (likely(inta || inta_fh)) |
1732 | tasklet_schedule(&priv->irq_tasklet); | |
b481de9c | 1733 | |
66fbb541 ON |
1734 | unplugged: |
1735 | spin_unlock(&priv->lock); | |
b481de9c ZY |
1736 | return IRQ_HANDLED; |
1737 | ||
1738 | none: | |
1739 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
1740 | /* only Re-enable if diabled by irq */ |
1741 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
1742 | iwl4965_enable_interrupts(priv); | |
b481de9c ZY |
1743 | spin_unlock(&priv->lock); |
1744 | return IRQ_NONE; | |
1745 | } | |
1746 | ||
b481de9c ZY |
1747 | /****************************************************************************** |
1748 | * | |
1749 | * uCode download functions | |
1750 | * | |
1751 | ******************************************************************************/ | |
1752 | ||
c79dd5b5 | 1753 | static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 1754 | { |
98c92211 TW |
1755 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
1756 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
1757 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
1758 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
1759 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
1760 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
1761 | } |
1762 | ||
edcdf8b2 RR |
1763 | static void iwl4965_nic_start(struct iwl_priv *priv) |
1764 | { | |
1765 | /* Remove all resets to allow NIC to operate */ | |
1766 | iwl_write32(priv, CSR_RESET, 0); | |
1767 | } | |
1768 | ||
1769 | ||
b481de9c | 1770 | /** |
bb8c093b | 1771 | * iwl4965_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
1772 | * |
1773 | * Copy into buffers for card to fetch via bus-mastering | |
1774 | */ | |
c79dd5b5 | 1775 | static int iwl4965_read_ucode(struct iwl_priv *priv) |
b481de9c | 1776 | { |
14b3d338 | 1777 | struct iwl_ucode *ucode; |
90e759d1 | 1778 | int ret; |
b481de9c | 1779 | const struct firmware *ucode_raw; |
4bf775cd | 1780 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
1781 | u8 *src; |
1782 | size_t len; | |
1783 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
1784 | ||
1785 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
1786 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
1787 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
1788 | if (ret < 0) { | |
1789 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
1790 | name, ret); | |
b481de9c ZY |
1791 | goto error; |
1792 | } | |
1793 | ||
1794 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
1795 | name, ucode_raw->size); | |
1796 | ||
1797 | /* Make sure that we got at least our header! */ | |
1798 | if (ucode_raw->size < sizeof(*ucode)) { | |
1799 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 1800 | ret = -EINVAL; |
b481de9c ZY |
1801 | goto err_release; |
1802 | } | |
1803 | ||
1804 | /* Data from ucode file: header followed by uCode images */ | |
1805 | ucode = (void *)ucode_raw->data; | |
1806 | ||
1807 | ver = le32_to_cpu(ucode->ver); | |
1808 | inst_size = le32_to_cpu(ucode->inst_size); | |
1809 | data_size = le32_to_cpu(ucode->data_size); | |
1810 | init_size = le32_to_cpu(ucode->init_size); | |
1811 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
1812 | boot_size = le32_to_cpu(ucode->boot_size); | |
1813 | ||
1814 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
1815 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", | |
1816 | inst_size); | |
1817 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", | |
1818 | data_size); | |
1819 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", | |
1820 | init_size); | |
1821 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", | |
1822 | init_data_size); | |
1823 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", | |
1824 | boot_size); | |
1825 | ||
1826 | /* Verify size of file vs. image size info in file's header */ | |
1827 | if (ucode_raw->size < sizeof(*ucode) + | |
1828 | inst_size + data_size + init_size + | |
1829 | init_data_size + boot_size) { | |
1830 | ||
1831 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
1832 | (int)ucode_raw->size); | |
90e759d1 | 1833 | ret = -EINVAL; |
b481de9c ZY |
1834 | goto err_release; |
1835 | } | |
1836 | ||
1837 | /* Verify that uCode images will fit in card's SRAM */ | |
099b40b7 | 1838 | if (inst_size > priv->hw_params.max_inst_size) { |
90e759d1 TW |
1839 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
1840 | inst_size); | |
1841 | ret = -EINVAL; | |
b481de9c ZY |
1842 | goto err_release; |
1843 | } | |
1844 | ||
099b40b7 | 1845 | if (data_size > priv->hw_params.max_data_size) { |
90e759d1 TW |
1846 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
1847 | data_size); | |
1848 | ret = -EINVAL; | |
b481de9c ZY |
1849 | goto err_release; |
1850 | } | |
099b40b7 | 1851 | if (init_size > priv->hw_params.max_inst_size) { |
b481de9c | 1852 | IWL_DEBUG_INFO |
90e759d1 TW |
1853 | ("uCode init instr len %d too large to fit in\n", |
1854 | init_size); | |
1855 | ret = -EINVAL; | |
b481de9c ZY |
1856 | goto err_release; |
1857 | } | |
099b40b7 | 1858 | if (init_data_size > priv->hw_params.max_data_size) { |
b481de9c | 1859 | IWL_DEBUG_INFO |
90e759d1 TW |
1860 | ("uCode init data len %d too large to fit in\n", |
1861 | init_data_size); | |
1862 | ret = -EINVAL; | |
b481de9c ZY |
1863 | goto err_release; |
1864 | } | |
099b40b7 | 1865 | if (boot_size > priv->hw_params.max_bsm_size) { |
b481de9c | 1866 | IWL_DEBUG_INFO |
90e759d1 TW |
1867 | ("uCode boot instr len %d too large to fit in\n", |
1868 | boot_size); | |
1869 | ret = -EINVAL; | |
b481de9c ZY |
1870 | goto err_release; |
1871 | } | |
1872 | ||
1873 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
1874 | ||
1875 | /* Runtime instructions and 2 copies of data: | |
1876 | * 1) unmodified from disk | |
1877 | * 2) backup cache for save/restore during power-downs */ | |
1878 | priv->ucode_code.len = inst_size; | |
98c92211 | 1879 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
1880 | |
1881 | priv->ucode_data.len = data_size; | |
98c92211 | 1882 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
1883 | |
1884 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 1885 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c ZY |
1886 | |
1887 | /* Initialization instructions and data */ | |
90e759d1 TW |
1888 | if (init_size && init_data_size) { |
1889 | priv->ucode_init.len = init_size; | |
98c92211 | 1890 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
1891 | |
1892 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 1893 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
1894 | |
1895 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
1896 | goto err_pci_alloc; | |
1897 | } | |
b481de9c ZY |
1898 | |
1899 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
1900 | if (boot_size) { |
1901 | priv->ucode_boot.len = boot_size; | |
98c92211 | 1902 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 1903 | |
90e759d1 TW |
1904 | if (!priv->ucode_boot.v_addr) |
1905 | goto err_pci_alloc; | |
1906 | } | |
b481de9c ZY |
1907 | |
1908 | /* Copy images into buffers for card's bus-master reads ... */ | |
1909 | ||
1910 | /* Runtime instructions (first block of data in file) */ | |
1911 | src = &ucode->data[0]; | |
1912 | len = priv->ucode_code.len; | |
90e759d1 | 1913 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
1914 | memcpy(priv->ucode_code.v_addr, src, len); |
1915 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
1916 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
1917 | ||
1918 | /* Runtime data (2nd block) | |
bb8c093b | 1919 | * NOTE: Copy into backup buffer will be done in iwl4965_up() */ |
b481de9c ZY |
1920 | src = &ucode->data[inst_size]; |
1921 | len = priv->ucode_data.len; | |
90e759d1 | 1922 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
1923 | memcpy(priv->ucode_data.v_addr, src, len); |
1924 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
1925 | ||
1926 | /* Initialization instructions (3rd block) */ | |
1927 | if (init_size) { | |
1928 | src = &ucode->data[inst_size + data_size]; | |
1929 | len = priv->ucode_init.len; | |
90e759d1 TW |
1930 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
1931 | len); | |
b481de9c ZY |
1932 | memcpy(priv->ucode_init.v_addr, src, len); |
1933 | } | |
1934 | ||
1935 | /* Initialization data (4th block) */ | |
1936 | if (init_data_size) { | |
1937 | src = &ucode->data[inst_size + data_size + init_size]; | |
1938 | len = priv->ucode_init_data.len; | |
90e759d1 TW |
1939 | IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n", |
1940 | len); | |
b481de9c ZY |
1941 | memcpy(priv->ucode_init_data.v_addr, src, len); |
1942 | } | |
1943 | ||
1944 | /* Bootstrap instructions (5th block) */ | |
1945 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
1946 | len = priv->ucode_boot.len; | |
90e759d1 | 1947 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len); |
b481de9c ZY |
1948 | memcpy(priv->ucode_boot.v_addr, src, len); |
1949 | ||
1950 | /* We have our copies now, allow OS release its copies */ | |
1951 | release_firmware(ucode_raw); | |
1952 | return 0; | |
1953 | ||
1954 | err_pci_alloc: | |
1955 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 1956 | ret = -ENOMEM; |
bb8c093b | 1957 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
1958 | |
1959 | err_release: | |
1960 | release_firmware(ucode_raw); | |
1961 | ||
1962 | error: | |
90e759d1 | 1963 | return ret; |
b481de9c ZY |
1964 | } |
1965 | ||
b481de9c | 1966 | /** |
4a4a9e81 | 1967 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 1968 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 1969 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 1970 | */ |
4a4a9e81 | 1971 | static void iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 1972 | { |
57aab75a | 1973 | int ret = 0; |
b481de9c ZY |
1974 | |
1975 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
1976 | ||
1977 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
1978 | /* We had an error bringing up the hardware, so take it | |
1979 | * all the way back down so we can try again */ | |
1980 | IWL_DEBUG_INFO("Alive failed.\n"); | |
1981 | goto restart; | |
1982 | } | |
1983 | ||
1984 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
1985 | * This is a paranoid check, because we would not have gotten the | |
1986 | * "runtime" alive if code weren't properly loaded. */ | |
b0692f2f | 1987 | if (iwl_verify_ucode(priv)) { |
b481de9c ZY |
1988 | /* Runtime instruction load was bad; |
1989 | * take it all the way back down so we can try again */ | |
1990 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
1991 | goto restart; | |
1992 | } | |
1993 | ||
37deb2a0 | 1994 | iwl_clear_stations_table(priv); |
57aab75a TW |
1995 | ret = priv->cfg->ops->lib->alive_notify(priv); |
1996 | if (ret) { | |
b481de9c | 1997 | IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n", |
57aab75a | 1998 | ret); |
b481de9c ZY |
1999 | goto restart; |
2000 | } | |
2001 | ||
9fbab516 | 2002 | /* After the ALIVE response, we can send host commands to 4965 uCode */ |
b481de9c ZY |
2003 | set_bit(STATUS_ALIVE, &priv->status); |
2004 | ||
fee1247a | 2005 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
2006 | return; |
2007 | ||
36d6825b | 2008 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
2009 | |
2010 | priv->active_rate = priv->rates_mask; | |
2011 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
2012 | ||
3109ece1 | 2013 | if (iwl_is_associated(priv)) { |
c1adf9fb GG |
2014 | struct iwl_rxon_cmd *active_rxon = |
2015 | (struct iwl_rxon_cmd *)&priv->active_rxon; | |
b481de9c ZY |
2016 | |
2017 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
2018 | sizeof(priv->staging_rxon)); | |
2019 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
2020 | } else { | |
2021 | /* Initialize our rx_config data */ | |
bb8c093b | 2022 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
2023 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2024 | } | |
2025 | ||
9fbab516 | 2026 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 2027 | iwl4965_send_bt_config(priv); |
b481de9c | 2028 | |
4a4a9e81 TW |
2029 | iwl_reset_run_time_calib(priv); |
2030 | ||
b481de9c | 2031 | /* Configure the adapter for unassociated operation */ |
bb8c093b | 2032 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
2033 | |
2034 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 2035 | iwl_rf_kill_ct_config(priv); |
5a66926a | 2036 | |
fe00b5a5 RC |
2037 | iwl_leds_register(priv); |
2038 | ||
b481de9c | 2039 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 2040 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 2041 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
2042 | |
2043 | if (priv->error_recovering) | |
bb8c093b | 2044 | iwl4965_error_recovery(priv); |
b481de9c | 2045 | |
58d0f361 | 2046 | iwl_power_update_mode(priv, 1); |
84363e6e | 2047 | ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); |
c46fbefa AK |
2048 | |
2049 | if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) | |
2050 | iwl4965_set_mode(priv, priv->iw_mode); | |
2051 | ||
b481de9c ZY |
2052 | return; |
2053 | ||
2054 | restart: | |
2055 | queue_work(priv->workqueue, &priv->restart); | |
2056 | } | |
2057 | ||
4e39317d | 2058 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 2059 | |
c79dd5b5 | 2060 | static void __iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
2061 | { |
2062 | unsigned long flags; | |
2063 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c ZY |
2064 | |
2065 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
2066 | ||
b481de9c ZY |
2067 | if (!exit_pending) |
2068 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
2069 | ||
ab53d8af MA |
2070 | iwl_leds_unregister(priv); |
2071 | ||
37deb2a0 | 2072 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2073 | |
2074 | /* Unblock any waiting calls */ | |
2075 | wake_up_interruptible_all(&priv->wait_command_queue); | |
2076 | ||
b481de9c ZY |
2077 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
2078 | * exiting the module */ | |
2079 | if (!exit_pending) | |
2080 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
2081 | ||
2082 | /* stop and reset the on-board processor */ | |
3395f6e9 | 2083 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
2084 | |
2085 | /* tell the device to stop sending interrupts */ | |
0359facc | 2086 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 2087 | iwl4965_disable_interrupts(priv); |
0359facc MA |
2088 | spin_unlock_irqrestore(&priv->lock, flags); |
2089 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
2090 | |
2091 | if (priv->mac80211_registered) | |
2092 | ieee80211_stop_queues(priv->hw); | |
2093 | ||
bb8c093b | 2094 | /* If we have not previously called iwl4965_init() then |
b481de9c | 2095 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
fee1247a | 2096 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
2097 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2098 | STATUS_RF_KILL_HW | | |
2099 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
2100 | STATUS_RF_KILL_SW | | |
9788864e RC |
2101 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2102 | STATUS_GEO_CONFIGURED | | |
b481de9c | 2103 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
052ec3f1 MA |
2104 | STATUS_IN_SUSPEND | |
2105 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2106 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
2107 | goto exit; |
2108 | } | |
2109 | ||
2110 | /* ...otherwise clear out all the status bits but the RF Kill and | |
2111 | * SUSPEND bits and continue taking the NIC down. */ | |
2112 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
2113 | STATUS_RF_KILL_HW | | |
2114 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
2115 | STATUS_RF_KILL_SW | | |
9788864e RC |
2116 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2117 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
2118 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
2119 | STATUS_IN_SUSPEND | | |
2120 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
052ec3f1 MA |
2121 | STATUS_FW_ERROR | |
2122 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2123 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
2124 | |
2125 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 2126 | iwl_clear_bit(priv, CSR_GP_CNTRL, |
9fbab516 | 2127 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
2128 | spin_unlock_irqrestore(&priv->lock, flags); |
2129 | ||
da1bc453 | 2130 | iwl_txq_ctx_stop(priv); |
b3bbacb7 | 2131 | iwl_rxq_stop(priv); |
b481de9c ZY |
2132 | |
2133 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
2134 | if (!iwl_grab_nic_access(priv)) { |
2135 | iwl_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 2136 | APMG_CLK_VAL_DMA_CLK_RQT); |
3395f6e9 | 2137 | iwl_release_nic_access(priv); |
b481de9c ZY |
2138 | } |
2139 | spin_unlock_irqrestore(&priv->lock, flags); | |
2140 | ||
2141 | udelay(5); | |
2142 | ||
7f066108 TW |
2143 | /* FIXME: apm_ops.suspend(priv) */ |
2144 | priv->cfg->ops->lib->apm_ops.reset(priv); | |
399f4900 | 2145 | priv->cfg->ops->lib->free_shared_mem(priv); |
b481de9c ZY |
2146 | |
2147 | exit: | |
885ba202 | 2148 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
2149 | |
2150 | if (priv->ibss_beacon) | |
2151 | dev_kfree_skb(priv->ibss_beacon); | |
2152 | priv->ibss_beacon = NULL; | |
2153 | ||
2154 | /* clear out any free frames */ | |
fcab423d | 2155 | iwl_clear_free_frames(priv); |
b481de9c ZY |
2156 | } |
2157 | ||
c79dd5b5 | 2158 | static void iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
2159 | { |
2160 | mutex_lock(&priv->mutex); | |
bb8c093b | 2161 | __iwl4965_down(priv); |
b481de9c | 2162 | mutex_unlock(&priv->mutex); |
b24d22b1 | 2163 | |
4e39317d | 2164 | iwl_cancel_deferred_work(priv); |
b481de9c ZY |
2165 | } |
2166 | ||
2167 | #define MAX_HW_RESTARTS 5 | |
2168 | ||
c79dd5b5 | 2169 | static int __iwl4965_up(struct iwl_priv *priv) |
b481de9c | 2170 | { |
57aab75a TW |
2171 | int i; |
2172 | int ret; | |
b481de9c ZY |
2173 | |
2174 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
2175 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
2176 | return -EIO; | |
2177 | } | |
2178 | ||
e903fbd4 RC |
2179 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
2180 | IWL_ERROR("ucode not available for device bringup\n"); | |
2181 | return -EIO; | |
2182 | } | |
2183 | ||
e655b9f0 | 2184 | /* If platform's RF_KILL switch is NOT set to KILL */ |
3395f6e9 | 2185 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
e655b9f0 ZY |
2186 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
2187 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3bff19c2 | 2188 | else |
e655b9f0 | 2189 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
3bff19c2 EG |
2190 | |
2191 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status) && | |
2192 | iwl_is_rfkill(priv)) { | |
2193 | iwl_rfkill_set_hw_state(priv); | |
2194 | IWL_WARNING("Radio disabled by %s RF Kill switch\n", | |
2195 | test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW"); | |
2196 | return -ENODEV; | |
b481de9c ZY |
2197 | } |
2198 | ||
ad97edd2 | 2199 | iwl_rfkill_set_hw_state(priv); |
3395f6e9 | 2200 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 2201 | |
399f4900 RR |
2202 | ret = priv->cfg->ops->lib->alloc_shared_mem(priv); |
2203 | if (ret) { | |
2204 | IWL_ERROR("Unable to allocate shared memory\n"); | |
2205 | return ret; | |
2206 | } | |
2207 | ||
1053d35f | 2208 | ret = iwl_hw_nic_init(priv); |
57aab75a TW |
2209 | if (ret) { |
2210 | IWL_ERROR("Unable to init nic\n"); | |
2211 | return ret; | |
b481de9c ZY |
2212 | } |
2213 | ||
2214 | /* make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2215 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2216 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
2217 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
2218 | ||
2219 | /* clear (again), then enable host interrupts */ | |
3395f6e9 | 2220 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
bb8c093b | 2221 | iwl4965_enable_interrupts(priv); |
b481de9c ZY |
2222 | |
2223 | /* really make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2224 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2225 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
2226 | |
2227 | /* Copy original ucode data image from disk into backup cache. | |
2228 | * This will be used to initialize the on-board processor's | |
2229 | * data SRAM for a clean start when the runtime program first loads. */ | |
2230 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 2231 | priv->ucode_data.len); |
b481de9c | 2232 | |
e655b9f0 | 2233 | /* We return success when we resume from suspend and rf_kill is on. */ |
64e72c3e MA |
2234 | if (test_bit(STATUS_RF_KILL_HW, &priv->status) || |
2235 | test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
b481de9c | 2236 | return 0; |
b481de9c ZY |
2237 | |
2238 | for (i = 0; i < MAX_HW_RESTARTS; i++) { | |
2239 | ||
37deb2a0 | 2240 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2241 | |
2242 | /* load bootstrap state machine, | |
2243 | * load bootstrap program into processor's memory, | |
2244 | * prepare to load the "initialize" uCode */ | |
57aab75a | 2245 | ret = priv->cfg->ops->lib->load_ucode(priv); |
b481de9c | 2246 | |
57aab75a TW |
2247 | if (ret) { |
2248 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret); | |
b481de9c ZY |
2249 | continue; |
2250 | } | |
2251 | ||
f3d5b45b EG |
2252 | /* Clear out the uCode error bit if it is set */ |
2253 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
2254 | ||
b481de9c | 2255 | /* start card; "initialize" will load runtime ucode */ |
edcdf8b2 | 2256 | iwl4965_nic_start(priv); |
b481de9c | 2257 | |
b481de9c ZY |
2258 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
2259 | ||
2260 | return 0; | |
2261 | } | |
2262 | ||
2263 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 2264 | __iwl4965_down(priv); |
64e72c3e | 2265 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
2266 | |
2267 | /* tried to restart and config the device for as long as our | |
2268 | * patience could withstand */ | |
2269 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
2270 | return -EIO; | |
2271 | } | |
2272 | ||
2273 | ||
2274 | /***************************************************************************** | |
2275 | * | |
2276 | * Workqueue callbacks | |
2277 | * | |
2278 | *****************************************************************************/ | |
2279 | ||
4a4a9e81 | 2280 | static void iwl_bg_init_alive_start(struct work_struct *data) |
b481de9c | 2281 | { |
c79dd5b5 TW |
2282 | struct iwl_priv *priv = |
2283 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
2284 | |
2285 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2286 | return; | |
2287 | ||
2288 | mutex_lock(&priv->mutex); | |
f3ccc08c | 2289 | priv->cfg->ops->lib->init_alive_start(priv); |
b481de9c ZY |
2290 | mutex_unlock(&priv->mutex); |
2291 | } | |
2292 | ||
4a4a9e81 | 2293 | static void iwl_bg_alive_start(struct work_struct *data) |
b481de9c | 2294 | { |
c79dd5b5 TW |
2295 | struct iwl_priv *priv = |
2296 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
2297 | |
2298 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2299 | return; | |
2300 | ||
2301 | mutex_lock(&priv->mutex); | |
4a4a9e81 | 2302 | iwl_alive_start(priv); |
b481de9c ZY |
2303 | mutex_unlock(&priv->mutex); |
2304 | } | |
2305 | ||
bb8c093b | 2306 | static void iwl4965_bg_rf_kill(struct work_struct *work) |
b481de9c | 2307 | { |
c79dd5b5 | 2308 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); |
b481de9c ZY |
2309 | |
2310 | wake_up_interruptible(&priv->wait_command_queue); | |
2311 | ||
2312 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2313 | return; | |
2314 | ||
2315 | mutex_lock(&priv->mutex); | |
2316 | ||
fee1247a | 2317 | if (!iwl_is_rfkill(priv)) { |
f3d67999 | 2318 | IWL_DEBUG(IWL_DL_RF_KILL, |
b481de9c ZY |
2319 | "HW and/or SW RF Kill no longer active, restarting " |
2320 | "device\n"); | |
2321 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2322 | queue_work(priv->workqueue, &priv->restart); | |
2323 | } else { | |
ad97edd2 MA |
2324 | /* make sure mac80211 stop sending Tx frame */ |
2325 | if (priv->mac80211_registered) | |
2326 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
2327 | |
2328 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
2329 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2330 | "disabled by SW switch\n"); | |
2331 | else | |
2332 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
2333 | "Kill switch must be turned off for " | |
2334 | "wireless networking to work.\n"); | |
2335 | } | |
ad97edd2 MA |
2336 | iwl_rfkill_set_hw_state(priv); |
2337 | ||
b481de9c ZY |
2338 | mutex_unlock(&priv->mutex); |
2339 | } | |
2340 | ||
4419e39b AK |
2341 | static void iwl4965_bg_set_monitor(struct work_struct *work) |
2342 | { | |
2343 | struct iwl_priv *priv = container_of(work, | |
2344 | struct iwl_priv, set_monitor); | |
c46fbefa | 2345 | int ret; |
4419e39b AK |
2346 | |
2347 | IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n"); | |
2348 | ||
2349 | mutex_lock(&priv->mutex); | |
2350 | ||
c46fbefa AK |
2351 | ret = iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR); |
2352 | ||
2353 | if (ret) { | |
2354 | if (ret == -EAGAIN) | |
2355 | IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); | |
2356 | else | |
2357 | IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret); | |
2358 | } | |
4419e39b AK |
2359 | |
2360 | mutex_unlock(&priv->mutex); | |
2361 | } | |
2362 | ||
16e727e8 EG |
2363 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
2364 | { | |
2365 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
2366 | run_time_calib_work); | |
2367 | ||
2368 | mutex_lock(&priv->mutex); | |
2369 | ||
2370 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
2371 | test_bit(STATUS_SCANNING, &priv->status)) { | |
2372 | mutex_unlock(&priv->mutex); | |
2373 | return; | |
2374 | } | |
2375 | ||
2376 | if (priv->start_calib) { | |
2377 | iwl_chain_noise_calibration(priv, &priv->statistics); | |
2378 | ||
2379 | iwl_sensitivity_calibration(priv, &priv->statistics); | |
2380 | } | |
2381 | ||
2382 | mutex_unlock(&priv->mutex); | |
2383 | return; | |
2384 | } | |
2385 | ||
bb8c093b | 2386 | static void iwl4965_bg_up(struct work_struct *data) |
b481de9c | 2387 | { |
c79dd5b5 | 2388 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
2389 | |
2390 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2391 | return; | |
2392 | ||
2393 | mutex_lock(&priv->mutex); | |
bb8c093b | 2394 | __iwl4965_up(priv); |
b481de9c ZY |
2395 | mutex_unlock(&priv->mutex); |
2396 | } | |
2397 | ||
bb8c093b | 2398 | static void iwl4965_bg_restart(struct work_struct *data) |
b481de9c | 2399 | { |
c79dd5b5 | 2400 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
2401 | |
2402 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2403 | return; | |
2404 | ||
bb8c093b | 2405 | iwl4965_down(priv); |
b481de9c ZY |
2406 | queue_work(priv->workqueue, &priv->up); |
2407 | } | |
2408 | ||
bb8c093b | 2409 | static void iwl4965_bg_rx_replenish(struct work_struct *data) |
b481de9c | 2410 | { |
c79dd5b5 TW |
2411 | struct iwl_priv *priv = |
2412 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
2413 | |
2414 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2415 | return; | |
2416 | ||
2417 | mutex_lock(&priv->mutex); | |
a55360e4 | 2418 | iwl_rx_replenish(priv); |
b481de9c ZY |
2419 | mutex_unlock(&priv->mutex); |
2420 | } | |
2421 | ||
7878a5a4 MA |
2422 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
2423 | ||
508e32e1 | 2424 | static void iwl4965_post_associate(struct iwl_priv *priv) |
b481de9c | 2425 | { |
b481de9c | 2426 | struct ieee80211_conf *conf = NULL; |
857485c0 | 2427 | int ret = 0; |
0795af57 | 2428 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
2429 | |
2430 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
2431 | IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__); | |
2432 | return; | |
2433 | } | |
2434 | ||
0795af57 JP |
2435 | IWL_DEBUG_ASSOC("Associated as %d to: %s\n", |
2436 | priv->assoc_id, | |
2437 | print_mac(mac, priv->active_rxon.bssid_addr)); | |
b481de9c ZY |
2438 | |
2439 | ||
2440 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2441 | return; | |
2442 | ||
b481de9c | 2443 | |
508e32e1 | 2444 | if (!priv->vif || !priv->is_open) |
948c171c | 2445 | return; |
508e32e1 | 2446 | |
2a421b91 | 2447 | iwl_scan_cancel_timeout(priv, 200); |
052c4b9f | 2448 | |
b481de9c ZY |
2449 | conf = ieee80211_get_hw_conf(priv->hw); |
2450 | ||
2451 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 2452 | iwl4965_commit_rxon(priv); |
b481de9c | 2453 | |
bb8c093b CH |
2454 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
2455 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 2456 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2457 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2458 | if (ret) |
b481de9c ZY |
2459 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
2460 | "Attempting to continue.\n"); | |
2461 | ||
2462 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
2463 | ||
fd105e79 | 2464 | if (priv->current_ht_config.is_ht) |
47c5196e | 2465 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
4f85f5b3 | 2466 | |
c7de35cd | 2467 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
2468 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
2469 | ||
2470 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
2471 | priv->assoc_id, priv->beacon_int); | |
2472 | ||
2473 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2474 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2475 | else | |
2476 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2477 | ||
2478 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2479 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2480 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2481 | else | |
2482 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2483 | ||
2484 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
2485 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2486 | ||
2487 | } | |
2488 | ||
bb8c093b | 2489 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
2490 | |
2491 | switch (priv->iw_mode) { | |
2492 | case IEEE80211_IF_TYPE_STA: | |
b481de9c ZY |
2493 | break; |
2494 | ||
2495 | case IEEE80211_IF_TYPE_IBSS: | |
2496 | ||
c46fbefa AK |
2497 | /* assume default assoc id */ |
2498 | priv->assoc_id = 1; | |
b481de9c | 2499 | |
4f40e4d9 | 2500 | iwl_rxon_add_station(priv, priv->bssid, 0); |
bb8c093b | 2501 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
2502 | |
2503 | break; | |
2504 | ||
2505 | default: | |
2506 | IWL_ERROR("%s Should not be called in %d mode\n", | |
2507 | __FUNCTION__, priv->iw_mode); | |
2508 | break; | |
2509 | } | |
2510 | ||
b481de9c | 2511 | /* Enable Rx differential gain and sensitivity calibrations */ |
f0832f13 | 2512 | iwl_chain_noise_reset(priv); |
b481de9c | 2513 | priv->start_calib = 1; |
b481de9c ZY |
2514 | |
2515 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
2516 | priv->assoc_station_added = 1; | |
2517 | ||
bb8c093b | 2518 | iwl4965_activate_qos(priv, 0); |
292ae174 | 2519 | |
5da4b55f | 2520 | iwl_power_update_mode(priv, 0); |
7878a5a4 MA |
2521 | /* we have just associated, don't start scan too early */ |
2522 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
508e32e1 RC |
2523 | } |
2524 | ||
2525 | ||
2526 | static void iwl4965_bg_post_associate(struct work_struct *data) | |
2527 | { | |
2528 | struct iwl_priv *priv = container_of(data, struct iwl_priv, | |
2529 | post_associate.work); | |
2530 | ||
2531 | mutex_lock(&priv->mutex); | |
2532 | iwl4965_post_associate(priv); | |
b481de9c | 2533 | mutex_unlock(&priv->mutex); |
508e32e1 | 2534 | |
b481de9c ZY |
2535 | } |
2536 | ||
76bb77e0 ZY |
2537 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
2538 | ||
2a421b91 | 2539 | static void iwl_bg_scan_completed(struct work_struct *work) |
b481de9c | 2540 | { |
c79dd5b5 TW |
2541 | struct iwl_priv *priv = |
2542 | container_of(work, struct iwl_priv, scan_completed); | |
b481de9c | 2543 | |
630fe9b6 | 2544 | IWL_DEBUG_SCAN("SCAN complete scan\n"); |
b481de9c ZY |
2545 | |
2546 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2547 | return; | |
2548 | ||
a0646470 ZY |
2549 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
2550 | iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw)); | |
76bb77e0 | 2551 | |
b481de9c ZY |
2552 | ieee80211_scan_completed(priv->hw); |
2553 | ||
2554 | /* Since setting the TXPOWER may have been deferred while | |
2555 | * performing the scan, fire one off */ | |
2556 | mutex_lock(&priv->mutex); | |
630fe9b6 | 2557 | iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); |
b481de9c ZY |
2558 | mutex_unlock(&priv->mutex); |
2559 | } | |
2560 | ||
2561 | /***************************************************************************** | |
2562 | * | |
2563 | * mac80211 entry point functions | |
2564 | * | |
2565 | *****************************************************************************/ | |
2566 | ||
154b25ce | 2567 | #define UCODE_READY_TIMEOUT (4 * HZ) |
5a66926a | 2568 | |
bb8c093b | 2569 | static int iwl4965_mac_start(struct ieee80211_hw *hw) |
b481de9c | 2570 | { |
c79dd5b5 | 2571 | struct iwl_priv *priv = hw->priv; |
5a66926a | 2572 | int ret; |
b481de9c ZY |
2573 | |
2574 | IWL_DEBUG_MAC80211("enter\n"); | |
2575 | ||
5a66926a ZY |
2576 | if (pci_enable_device(priv->pci_dev)) { |
2577 | IWL_ERROR("Fail to pci_enable_device\n"); | |
2578 | return -ENODEV; | |
2579 | } | |
2580 | pci_restore_state(priv->pci_dev); | |
2581 | pci_enable_msi(priv->pci_dev); | |
2582 | ||
2583 | ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED, | |
2584 | DRV_NAME, priv); | |
2585 | if (ret) { | |
2586 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
2587 | goto out_disable_msi; | |
2588 | } | |
2589 | ||
b481de9c ZY |
2590 | /* we should be verifying the device is ready to be opened */ |
2591 | mutex_lock(&priv->mutex); | |
2592 | ||
c1adf9fb | 2593 | memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); |
5a66926a ZY |
2594 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
2595 | * ucode filename and max sizes are card-specific. */ | |
b481de9c | 2596 | |
5a66926a ZY |
2597 | if (!priv->ucode_code.len) { |
2598 | ret = iwl4965_read_ucode(priv); | |
2599 | if (ret) { | |
2600 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
2601 | mutex_unlock(&priv->mutex); | |
2602 | goto out_release_irq; | |
2603 | } | |
2604 | } | |
b481de9c | 2605 | |
e655b9f0 | 2606 | ret = __iwl4965_up(priv); |
5a66926a | 2607 | |
b481de9c | 2608 | mutex_unlock(&priv->mutex); |
5a66926a | 2609 | |
e655b9f0 ZY |
2610 | if (ret) |
2611 | goto out_release_irq; | |
2612 | ||
2613 | IWL_DEBUG_INFO("Start UP work done.\n"); | |
2614 | ||
2615 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
2616 | return 0; | |
2617 | ||
fe9b6b72 | 2618 | /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from |
5a66926a | 2619 | * mac80211 will not be run successfully. */ |
154b25ce EG |
2620 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
2621 | test_bit(STATUS_READY, &priv->status), | |
2622 | UCODE_READY_TIMEOUT); | |
2623 | if (!ret) { | |
2624 | if (!test_bit(STATUS_READY, &priv->status)) { | |
2625 | IWL_ERROR("START_ALIVE timeout after %dms.\n", | |
2626 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
2627 | ret = -ETIMEDOUT; | |
2628 | goto out_release_irq; | |
5a66926a | 2629 | } |
fe9b6b72 | 2630 | } |
0a078ffa TW |
2631 | |
2632 | priv->is_open = 1; | |
b481de9c ZY |
2633 | IWL_DEBUG_MAC80211("leave\n"); |
2634 | return 0; | |
5a66926a ZY |
2635 | |
2636 | out_release_irq: | |
2637 | free_irq(priv->pci_dev->irq, priv); | |
2638 | out_disable_msi: | |
2639 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
2640 | pci_disable_device(priv->pci_dev); |
2641 | priv->is_open = 0; | |
2642 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 2643 | return ret; |
b481de9c ZY |
2644 | } |
2645 | ||
bb8c093b | 2646 | static void iwl4965_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 2647 | { |
c79dd5b5 | 2648 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2649 | |
2650 | IWL_DEBUG_MAC80211("enter\n"); | |
948c171c | 2651 | |
e655b9f0 ZY |
2652 | if (!priv->is_open) { |
2653 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
2654 | return; | |
2655 | } | |
2656 | ||
b481de9c | 2657 | priv->is_open = 0; |
5a66926a | 2658 | |
fee1247a | 2659 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
2660 | /* stop mac, cancel any scan request and clear |
2661 | * RXON_FILTER_ASSOC_MSK BIT | |
2662 | */ | |
5a66926a | 2663 | mutex_lock(&priv->mutex); |
2a421b91 | 2664 | iwl_scan_cancel_timeout(priv, 100); |
5a66926a | 2665 | cancel_delayed_work(&priv->post_associate); |
fde3571f | 2666 | mutex_unlock(&priv->mutex); |
fde3571f MA |
2667 | } |
2668 | ||
5a66926a ZY |
2669 | iwl4965_down(priv); |
2670 | ||
2671 | flush_workqueue(priv->workqueue); | |
2672 | free_irq(priv->pci_dev->irq, priv); | |
2673 | pci_disable_msi(priv->pci_dev); | |
2674 | pci_save_state(priv->pci_dev); | |
2675 | pci_disable_device(priv->pci_dev); | |
948c171c | 2676 | |
b481de9c | 2677 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
2678 | } |
2679 | ||
e039fa4a | 2680 | static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 2681 | { |
c79dd5b5 | 2682 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2683 | |
2684 | IWL_DEBUG_MAC80211("enter\n"); | |
2685 | ||
2686 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
2687 | IWL_DEBUG_MAC80211("leave - monitor\n"); | |
2688 | return -1; | |
2689 | } | |
2690 | ||
2691 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, | |
e039fa4a | 2692 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 2693 | |
e039fa4a | 2694 | if (iwl_tx_skb(priv, skb)) |
b481de9c ZY |
2695 | dev_kfree_skb_any(skb); |
2696 | ||
2697 | IWL_DEBUG_MAC80211("leave\n"); | |
2698 | return 0; | |
2699 | } | |
2700 | ||
bb8c093b | 2701 | static int iwl4965_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
2702 | struct ieee80211_if_init_conf *conf) |
2703 | { | |
c79dd5b5 | 2704 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2705 | unsigned long flags; |
0795af57 | 2706 | DECLARE_MAC_BUF(mac); |
b481de9c | 2707 | |
32bfd35d | 2708 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 2709 | |
32bfd35d JB |
2710 | if (priv->vif) { |
2711 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
75849d28 | 2712 | return -EOPNOTSUPP; |
b481de9c ZY |
2713 | } |
2714 | ||
2715 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 2716 | priv->vif = conf->vif; |
b481de9c ZY |
2717 | |
2718 | spin_unlock_irqrestore(&priv->lock, flags); | |
2719 | ||
2720 | mutex_lock(&priv->mutex); | |
864792e3 TW |
2721 | |
2722 | if (conf->mac_addr) { | |
2723 | IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr)); | |
2724 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); | |
2725 | } | |
b481de9c | 2726 | |
c46fbefa AK |
2727 | if (iwl4965_set_mode(priv, conf->type) == -EAGAIN) |
2728 | /* we are not ready, will run again when ready */ | |
2729 | set_bit(STATUS_MODE_PENDING, &priv->status); | |
5a66926a | 2730 | |
b481de9c ZY |
2731 | mutex_unlock(&priv->mutex); |
2732 | ||
5a66926a | 2733 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
2734 | return 0; |
2735 | } | |
2736 | ||
2737 | /** | |
bb8c093b | 2738 | * iwl4965_mac_config - mac80211 config callback |
b481de9c ZY |
2739 | * |
2740 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
2741 | * be set inappropriately and the driver currently sets the hardware up to | |
2742 | * use it whenever needed. | |
2743 | */ | |
bb8c093b | 2744 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) |
b481de9c | 2745 | { |
c79dd5b5 | 2746 | struct iwl_priv *priv = hw->priv; |
bf85ea4f | 2747 | const struct iwl_channel_info *ch_info; |
b481de9c | 2748 | unsigned long flags; |
76bb77e0 | 2749 | int ret = 0; |
82a66bbb | 2750 | u16 channel; |
b481de9c ZY |
2751 | |
2752 | mutex_lock(&priv->mutex); | |
8318d78a | 2753 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 2754 | |
12342c47 ZY |
2755 | priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
2756 | ||
14a08a7f | 2757 | if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) { |
64e72c3e | 2758 | IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n"); |
14a08a7f | 2759 | goto out; |
64e72c3e MA |
2760 | } |
2761 | ||
14a08a7f EG |
2762 | if (!conf->radio_enabled) |
2763 | iwl_radio_kill_sw_disable_radio(priv); | |
2764 | ||
fee1247a | 2765 | if (!iwl_is_ready(priv)) { |
b481de9c | 2766 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
2767 | ret = -EIO; |
2768 | goto out; | |
b481de9c ZY |
2769 | } |
2770 | ||
1ea87396 | 2771 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
b481de9c | 2772 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
2773 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
2774 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 2775 | mutex_unlock(&priv->mutex); |
a0646470 | 2776 | return 0; |
b481de9c ZY |
2777 | } |
2778 | ||
82a66bbb TW |
2779 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); |
2780 | ch_info = iwl_get_channel_info(priv, conf->channel->band, channel); | |
b481de9c | 2781 | if (!is_channel_valid(ch_info)) { |
b481de9c | 2782 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
76bb77e0 ZY |
2783 | ret = -EINVAL; |
2784 | goto out; | |
b481de9c ZY |
2785 | } |
2786 | ||
398f9e76 AK |
2787 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS && |
2788 | !is_channel_ibss(ch_info)) { | |
2789 | IWL_ERROR("channel %d in band %d not IBSS channel\n", | |
2790 | conf->channel->hw_value, conf->channel->band); | |
2791 | ret = -EINVAL; | |
2792 | goto out; | |
2793 | } | |
2794 | ||
82a66bbb TW |
2795 | spin_lock_irqsave(&priv->lock, flags); |
2796 | ||
78330fdd | 2797 | /* if we are switching from ht to 2.4 clear flags |
b481de9c ZY |
2798 | * from any ht related info since 2.4 does not |
2799 | * support ht */ | |
82a66bbb | 2800 | if ((le16_to_cpu(priv->staging_rxon.channel) != channel) |
b481de9c ZY |
2801 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH |
2802 | && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) | |
2803 | #endif | |
2804 | ) | |
2805 | priv->staging_rxon.flags = 0; | |
b481de9c | 2806 | |
82a66bbb | 2807 | iwl_set_rxon_channel(priv, conf->channel->band, channel); |
b481de9c | 2808 | |
82a66bbb | 2809 | iwl_set_flags_for_band(priv, conf->channel->band); |
b481de9c ZY |
2810 | |
2811 | /* The list of supported rates and rate mask can be different | |
8318d78a | 2812 | * for each band; since the band may have changed, reset |
b481de9c | 2813 | * the rate mask to what mac80211 lists */ |
bb8c093b | 2814 | iwl4965_set_rate(priv); |
b481de9c ZY |
2815 | |
2816 | spin_unlock_irqrestore(&priv->lock, flags); | |
2817 | ||
2818 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
2819 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 2820 | iwl4965_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 2821 | goto out; |
b481de9c ZY |
2822 | } |
2823 | #endif | |
2824 | ||
b481de9c ZY |
2825 | if (!conf->radio_enabled) { |
2826 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 2827 | goto out; |
b481de9c ZY |
2828 | } |
2829 | ||
fee1247a | 2830 | if (iwl_is_rfkill(priv)) { |
b481de9c | 2831 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
2832 | ret = -EIO; |
2833 | goto out; | |
b481de9c ZY |
2834 | } |
2835 | ||
630fe9b6 TW |
2836 | IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n", |
2837 | priv->tx_power_user_lmt, conf->power_level); | |
2838 | ||
2839 | iwl_set_tx_power(priv, conf->power_level, false); | |
2840 | ||
bb8c093b | 2841 | iwl4965_set_rate(priv); |
b481de9c ZY |
2842 | |
2843 | if (memcmp(&priv->active_rxon, | |
2844 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 2845 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
2846 | else |
2847 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
2848 | ||
2849 | IWL_DEBUG_MAC80211("leave\n"); | |
2850 | ||
a0646470 ZY |
2851 | out: |
2852 | clear_bit(STATUS_CONF_PENDING, &priv->status); | |
5a66926a | 2853 | mutex_unlock(&priv->mutex); |
76bb77e0 | 2854 | return ret; |
b481de9c ZY |
2855 | } |
2856 | ||
c79dd5b5 | 2857 | static void iwl4965_config_ap(struct iwl_priv *priv) |
b481de9c | 2858 | { |
857485c0 | 2859 | int ret = 0; |
b481de9c | 2860 | |
d986bcd1 | 2861 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
2862 | return; |
2863 | ||
2864 | /* The following should be done only at AP bring up */ | |
5d1e2325 | 2865 | if (!(iwl_is_associated(priv))) { |
b481de9c ZY |
2866 | |
2867 | /* RXON - unassoc (to set timing command) */ | |
2868 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 2869 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
2870 | |
2871 | /* RXON Timing */ | |
bb8c093b CH |
2872 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
2873 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 2874 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2875 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2876 | if (ret) |
b481de9c ZY |
2877 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
2878 | "Attempting to continue.\n"); | |
2879 | ||
c7de35cd | 2880 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
2881 | |
2882 | /* FIXME: what should be the assoc_id for AP? */ | |
2883 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
2884 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2885 | priv->staging_rxon.flags |= | |
2886 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
2887 | else | |
2888 | priv->staging_rxon.flags &= | |
2889 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2890 | ||
2891 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2892 | if (priv->assoc_capability & | |
2893 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2894 | priv->staging_rxon.flags |= | |
2895 | RXON_FLG_SHORT_SLOT_MSK; | |
2896 | else | |
2897 | priv->staging_rxon.flags &= | |
2898 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2899 | ||
2900 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
2901 | priv->staging_rxon.flags &= | |
2902 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2903 | } | |
2904 | /* restore RXON assoc */ | |
2905 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 2906 | iwl4965_commit_rxon(priv); |
bb8c093b | 2907 | iwl4965_activate_qos(priv, 1); |
4f40e4d9 | 2908 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
e1493deb | 2909 | } |
bb8c093b | 2910 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
2911 | |
2912 | /* FIXME - we need to add code here to detect a totally new | |
2913 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
2914 | * clear sta table, add BCAST sta... */ | |
2915 | } | |
2916 | ||
32bfd35d JB |
2917 | static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, |
2918 | struct ieee80211_vif *vif, | |
b481de9c ZY |
2919 | struct ieee80211_if_conf *conf) |
2920 | { | |
c79dd5b5 | 2921 | struct iwl_priv *priv = hw->priv; |
0795af57 | 2922 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
2923 | unsigned long flags; |
2924 | int rc; | |
2925 | ||
2926 | if (conf == NULL) | |
2927 | return -EIO; | |
2928 | ||
b716bb91 EG |
2929 | if (priv->vif != vif) { |
2930 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
2931 | return 0; |
2932 | } | |
2933 | ||
b481de9c ZY |
2934 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && |
2935 | (!conf->beacon || !conf->ssid_len)) { | |
2936 | IWL_DEBUG_MAC80211 | |
2937 | ("Leaving in AP mode because HostAPD is not ready.\n"); | |
2938 | return 0; | |
2939 | } | |
2940 | ||
fee1247a | 2941 | if (!iwl_is_alive(priv)) |
5a66926a ZY |
2942 | return -EAGAIN; |
2943 | ||
b481de9c ZY |
2944 | mutex_lock(&priv->mutex); |
2945 | ||
b481de9c | 2946 | if (conf->bssid) |
0795af57 JP |
2947 | IWL_DEBUG_MAC80211("bssid: %s\n", |
2948 | print_mac(mac, conf->bssid)); | |
b481de9c | 2949 | |
4150c572 JB |
2950 | /* |
2951 | * very dubious code was here; the probe filtering flag is never set: | |
2952 | * | |
b481de9c ZY |
2953 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
2954 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 2955 | */ |
b481de9c ZY |
2956 | |
2957 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
2958 | if (!conf->bssid) { | |
2959 | conf->bssid = priv->mac_addr; | |
2960 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
0795af57 JP |
2961 | IWL_DEBUG_MAC80211("bssid was set to: %s\n", |
2962 | print_mac(mac, conf->bssid)); | |
b481de9c ZY |
2963 | } |
2964 | if (priv->ibss_beacon) | |
2965 | dev_kfree_skb(priv->ibss_beacon); | |
2966 | ||
2967 | priv->ibss_beacon = conf->beacon; | |
2968 | } | |
2969 | ||
fee1247a | 2970 | if (iwl_is_rfkill(priv)) |
fde3571f MA |
2971 | goto done; |
2972 | ||
b481de9c ZY |
2973 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
2974 | !is_multicast_ether_addr(conf->bssid)) { | |
2975 | /* If there is currently a HW scan going on in the background | |
2976 | * then we need to cancel it else the RXON below will fail. */ | |
2a421b91 | 2977 | if (iwl_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
2978 | IWL_WARNING("Aborted scan still in progress " |
2979 | "after 100ms\n"); | |
2980 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2981 | mutex_unlock(&priv->mutex); | |
2982 | return -EAGAIN; | |
2983 | } | |
2984 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
2985 | ||
2986 | /* TODO: Audit driver for usage of these members and see | |
2987 | * if mac80211 deprecates them (priv->bssid looks like it | |
2988 | * shouldn't be there, but I haven't scanned the IBSS code | |
2989 | * to verify) - jpk */ | |
2990 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
2991 | ||
2992 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 2993 | iwl4965_config_ap(priv); |
b481de9c | 2994 | else { |
bb8c093b | 2995 | rc = iwl4965_commit_rxon(priv); |
b481de9c | 2996 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc) |
4f40e4d9 | 2997 | iwl_rxon_add_station( |
b481de9c ZY |
2998 | priv, priv->active_rxon.bssid_addr, 1); |
2999 | } | |
3000 | ||
3001 | } else { | |
2a421b91 | 3002 | iwl_scan_cancel_timeout(priv, 100); |
b481de9c | 3003 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 3004 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3005 | } |
3006 | ||
fde3571f | 3007 | done: |
b481de9c ZY |
3008 | spin_lock_irqsave(&priv->lock, flags); |
3009 | if (!conf->ssid_len) | |
3010 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
3011 | else | |
3012 | memcpy(priv->essid, conf->ssid, conf->ssid_len); | |
3013 | ||
3014 | priv->essid_len = conf->ssid_len; | |
3015 | spin_unlock_irqrestore(&priv->lock, flags); | |
3016 | ||
3017 | IWL_DEBUG_MAC80211("leave\n"); | |
3018 | mutex_unlock(&priv->mutex); | |
3019 | ||
3020 | return 0; | |
3021 | } | |
3022 | ||
bb8c093b | 3023 | static void iwl4965_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
3024 | unsigned int changed_flags, |
3025 | unsigned int *total_flags, | |
3026 | int mc_count, struct dev_addr_list *mc_list) | |
3027 | { | |
3028 | /* | |
3029 | * XXX: dummy | |
bb8c093b | 3030 | * see also iwl4965_connection_init_rx_config |
4150c572 | 3031 | */ |
4419e39b AK |
3032 | struct iwl_priv *priv = hw->priv; |
3033 | int new_flags = 0; | |
3034 | if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
3035 | if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
3036 | IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n", | |
3037 | IEEE80211_IF_TYPE_MNTR, | |
3038 | changed_flags, *total_flags); | |
3039 | /* queue work 'cuz mac80211 is holding a lock which | |
3040 | * prevents us from issuing (synchronous) f/w cmds */ | |
3041 | queue_work(priv->workqueue, &priv->set_monitor); | |
3042 | new_flags &= FIF_PROMISC_IN_BSS | | |
3043 | FIF_OTHER_BSS | | |
3044 | FIF_ALLMULTI; | |
3045 | } | |
3046 | } | |
3047 | *total_flags = new_flags; | |
4150c572 JB |
3048 | } |
3049 | ||
bb8c093b | 3050 | static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
3051 | struct ieee80211_if_init_conf *conf) |
3052 | { | |
c79dd5b5 | 3053 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3054 | |
3055 | IWL_DEBUG_MAC80211("enter\n"); | |
3056 | ||
3057 | mutex_lock(&priv->mutex); | |
948c171c | 3058 | |
fee1247a | 3059 | if (iwl_is_ready_rf(priv)) { |
2a421b91 | 3060 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f MA |
3061 | cancel_delayed_work(&priv->post_associate); |
3062 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
3063 | iwl4965_commit_rxon(priv); | |
3064 | } | |
32bfd35d JB |
3065 | if (priv->vif == conf->vif) { |
3066 | priv->vif = NULL; | |
b481de9c ZY |
3067 | memset(priv->bssid, 0, ETH_ALEN); |
3068 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
3069 | priv->essid_len = 0; | |
3070 | } | |
3071 | mutex_unlock(&priv->mutex); | |
3072 | ||
3073 | IWL_DEBUG_MAC80211("leave\n"); | |
3074 | ||
3075 | } | |
471b3efd | 3076 | |
3109ece1 | 3077 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
471b3efd JB |
3078 | static void iwl4965_bss_info_changed(struct ieee80211_hw *hw, |
3079 | struct ieee80211_vif *vif, | |
3080 | struct ieee80211_bss_conf *bss_conf, | |
3081 | u32 changes) | |
220173b0 | 3082 | { |
c79dd5b5 | 3083 | struct iwl_priv *priv = hw->priv; |
220173b0 | 3084 | |
3109ece1 TW |
3085 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); |
3086 | ||
471b3efd | 3087 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
3109ece1 TW |
3088 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", |
3089 | bss_conf->use_short_preamble); | |
471b3efd | 3090 | if (bss_conf->use_short_preamble) |
220173b0 TW |
3091 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
3092 | else | |
3093 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
3094 | } | |
3095 | ||
471b3efd | 3096 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
3109ece1 | 3097 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); |
8318d78a | 3098 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
220173b0 TW |
3099 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
3100 | else | |
3101 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
3102 | } | |
3103 | ||
98952d5d | 3104 | if (changes & BSS_CHANGED_HT) { |
3109ece1 | 3105 | IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht); |
98952d5d | 3106 | iwl4965_ht_conf(priv, bss_conf); |
c7de35cd | 3107 | iwl_set_rxon_chain(priv); |
98952d5d TW |
3108 | } |
3109 | ||
471b3efd | 3110 | if (changes & BSS_CHANGED_ASSOC) { |
3109ece1 | 3111 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); |
508e32e1 RC |
3112 | /* This should never happen as this function should |
3113 | * never be called from interrupt context. */ | |
3114 | if (WARN_ON_ONCE(in_interrupt())) | |
3115 | return; | |
3109ece1 TW |
3116 | if (bss_conf->assoc) { |
3117 | priv->assoc_id = bss_conf->aid; | |
3118 | priv->beacon_int = bss_conf->beacon_int; | |
3119 | priv->timestamp = bss_conf->timestamp; | |
3120 | priv->assoc_capability = bss_conf->assoc_capability; | |
3121 | priv->next_scan_jiffies = jiffies + | |
3122 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
508e32e1 RC |
3123 | mutex_lock(&priv->mutex); |
3124 | iwl4965_post_associate(priv); | |
3125 | mutex_unlock(&priv->mutex); | |
3109ece1 TW |
3126 | } else { |
3127 | priv->assoc_id = 0; | |
3128 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
3129 | } | |
3130 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { | |
3131 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
7e8c519e | 3132 | iwl_send_rxon_assoc(priv); |
471b3efd JB |
3133 | } |
3134 | ||
220173b0 | 3135 | } |
b481de9c | 3136 | |
bb8c093b | 3137 | static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
3138 | { |
3139 | int rc = 0; | |
3140 | unsigned long flags; | |
c79dd5b5 | 3141 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3142 | |
3143 | IWL_DEBUG_MAC80211("enter\n"); | |
3144 | ||
052c4b9f | 3145 | mutex_lock(&priv->mutex); |
b481de9c ZY |
3146 | spin_lock_irqsave(&priv->lock, flags); |
3147 | ||
fee1247a | 3148 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3149 | rc = -EIO; |
3150 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
3151 | goto out_unlock; | |
3152 | } | |
3153 | ||
3154 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */ | |
3155 | rc = -EIO; | |
3156 | IWL_ERROR("ERROR: APs don't scan\n"); | |
3157 | goto out_unlock; | |
3158 | } | |
3159 | ||
7878a5a4 MA |
3160 | /* we don't schedule scan within next_scan_jiffies period */ |
3161 | if (priv->next_scan_jiffies && | |
3162 | time_after(priv->next_scan_jiffies, jiffies)) { | |
3163 | rc = -EAGAIN; | |
3164 | goto out_unlock; | |
3165 | } | |
b481de9c | 3166 | /* if we just finished scan ask for delay */ |
7878a5a4 MA |
3167 | if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies + |
3168 | IWL_DELAY_NEXT_SCAN, jiffies)) { | |
b481de9c ZY |
3169 | rc = -EAGAIN; |
3170 | goto out_unlock; | |
3171 | } | |
3172 | if (len) { | |
7878a5a4 | 3173 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
2a421b91 | 3174 | iwl_escape_essid(ssid, len), (int)len); |
b481de9c ZY |
3175 | |
3176 | priv->one_direct_scan = 1; | |
3177 | priv->direct_ssid_len = (u8) | |
3178 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
3179 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
948c171c MA |
3180 | } else |
3181 | priv->one_direct_scan = 0; | |
b481de9c | 3182 | |
2a421b91 | 3183 | rc = iwl_scan_initiate(priv); |
b481de9c ZY |
3184 | |
3185 | IWL_DEBUG_MAC80211("leave\n"); | |
3186 | ||
3187 | out_unlock: | |
3188 | spin_unlock_irqrestore(&priv->lock, flags); | |
052c4b9f | 3189 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
3190 | |
3191 | return rc; | |
3192 | } | |
3193 | ||
ab885f8c EG |
3194 | static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, |
3195 | struct ieee80211_key_conf *keyconf, const u8 *addr, | |
3196 | u32 iv32, u16 *phase1key) | |
3197 | { | |
3198 | struct iwl_priv *priv = hw->priv; | |
3199 | u8 sta_id = IWL_INVALID_STATION; | |
3200 | unsigned long flags; | |
3201 | __le16 key_flags = 0; | |
3202 | int i; | |
3203 | DECLARE_MAC_BUF(mac); | |
3204 | ||
3205 | IWL_DEBUG_MAC80211("enter\n"); | |
3206 | ||
947b13a7 | 3207 | sta_id = iwl_find_station(priv, addr); |
ab885f8c EG |
3208 | if (sta_id == IWL_INVALID_STATION) { |
3209 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
3210 | print_mac(mac, addr)); | |
3211 | return; | |
3212 | } | |
3213 | ||
2a421b91 | 3214 | iwl_scan_cancel_timeout(priv, 100); |
ab885f8c EG |
3215 | |
3216 | key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); | |
3217 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
3218 | key_flags &= ~STA_KEY_FLG_INVALID; | |
3219 | ||
5425e490 | 3220 | if (sta_id == priv->hw_params.bcast_sta_id) |
ab885f8c EG |
3221 | key_flags |= STA_KEY_MULTICAST_MSK; |
3222 | ||
3223 | spin_lock_irqsave(&priv->sta_lock, flags); | |
3224 | ||
ab885f8c EG |
3225 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
3226 | priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; | |
3227 | ||
3228 | for (i = 0; i < 5; i++) | |
3229 | priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = | |
3230 | cpu_to_le16(phase1key[i]); | |
3231 | ||
3232 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
3233 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
3234 | ||
133636de | 3235 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
ab885f8c EG |
3236 | |
3237 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
3238 | ||
3239 | IWL_DEBUG_MAC80211("leave\n"); | |
3240 | } | |
3241 | ||
bb8c093b | 3242 | static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
3243 | const u8 *local_addr, const u8 *addr, |
3244 | struct ieee80211_key_conf *key) | |
3245 | { | |
c79dd5b5 | 3246 | struct iwl_priv *priv = hw->priv; |
0795af57 | 3247 | DECLARE_MAC_BUF(mac); |
deb09c43 EG |
3248 | int ret = 0; |
3249 | u8 sta_id = IWL_INVALID_STATION; | |
6974e363 | 3250 | u8 is_default_wep_key = 0; |
b481de9c ZY |
3251 | |
3252 | IWL_DEBUG_MAC80211("enter\n"); | |
3253 | ||
099b40b7 | 3254 | if (priv->hw_params.sw_crypto) { |
b481de9c ZY |
3255 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
3256 | return -EOPNOTSUPP; | |
3257 | } | |
3258 | ||
3259 | if (is_zero_ether_addr(addr)) | |
3260 | /* only support pairwise keys */ | |
3261 | return -EOPNOTSUPP; | |
3262 | ||
947b13a7 | 3263 | sta_id = iwl_find_station(priv, addr); |
6974e363 EG |
3264 | if (sta_id == IWL_INVALID_STATION) { |
3265 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
3266 | print_mac(mac, addr)); | |
3267 | return -EINVAL; | |
b481de9c | 3268 | |
deb09c43 | 3269 | } |
b481de9c | 3270 | |
6974e363 | 3271 | mutex_lock(&priv->mutex); |
2a421b91 | 3272 | iwl_scan_cancel_timeout(priv, 100); |
6974e363 EG |
3273 | mutex_unlock(&priv->mutex); |
3274 | ||
3275 | /* If we are getting WEP group key and we didn't receive any key mapping | |
3276 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
3277 | * in 1X mode. | |
3278 | * In legacy wep mode, we use another host command to the uCode */ | |
5425e490 | 3279 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
6974e363 EG |
3280 | priv->iw_mode != IEEE80211_IF_TYPE_AP) { |
3281 | if (cmd == SET_KEY) | |
3282 | is_default_wep_key = !priv->key_mapping_key; | |
3283 | else | |
ccc038ab EG |
3284 | is_default_wep_key = |
3285 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 3286 | } |
052c4b9f | 3287 | |
b481de9c | 3288 | switch (cmd) { |
deb09c43 | 3289 | case SET_KEY: |
6974e363 EG |
3290 | if (is_default_wep_key) |
3291 | ret = iwl_set_default_wep_key(priv, key); | |
deb09c43 | 3292 | else |
7480513f | 3293 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
3294 | |
3295 | IWL_DEBUG_MAC80211("enable hwcrypto key\n"); | |
b481de9c ZY |
3296 | break; |
3297 | case DISABLE_KEY: | |
6974e363 EG |
3298 | if (is_default_wep_key) |
3299 | ret = iwl_remove_default_wep_key(priv, key); | |
deb09c43 | 3300 | else |
3ec47732 | 3301 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
3302 | |
3303 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); | |
b481de9c ZY |
3304 | break; |
3305 | default: | |
deb09c43 | 3306 | ret = -EINVAL; |
b481de9c ZY |
3307 | } |
3308 | ||
3309 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c | 3310 | |
deb09c43 | 3311 | return ret; |
b481de9c ZY |
3312 | } |
3313 | ||
e100bb64 | 3314 | static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
3315 | const struct ieee80211_tx_queue_params *params) |
3316 | { | |
c79dd5b5 | 3317 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3318 | unsigned long flags; |
3319 | int q; | |
b481de9c ZY |
3320 | |
3321 | IWL_DEBUG_MAC80211("enter\n"); | |
3322 | ||
fee1247a | 3323 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3324 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
3325 | return -EIO; | |
3326 | } | |
3327 | ||
3328 | if (queue >= AC_NUM) { | |
3329 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
3330 | return 0; | |
3331 | } | |
3332 | ||
b481de9c ZY |
3333 | if (!priv->qos_data.qos_enable) { |
3334 | priv->qos_data.qos_active = 0; | |
3335 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
3336 | return 0; | |
3337 | } | |
3338 | q = AC_NUM - 1 - queue; | |
3339 | ||
3340 | spin_lock_irqsave(&priv->lock, flags); | |
3341 | ||
3342 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
3343 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
3344 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
3345 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 3346 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
3347 | |
3348 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
3349 | priv->qos_data.qos_active = 1; | |
3350 | ||
3351 | spin_unlock_irqrestore(&priv->lock, flags); | |
3352 | ||
3353 | mutex_lock(&priv->mutex); | |
3354 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 3355 | iwl4965_activate_qos(priv, 1); |
3109ece1 | 3356 | else if (priv->assoc_id && iwl_is_associated(priv)) |
bb8c093b | 3357 | iwl4965_activate_qos(priv, 0); |
b481de9c ZY |
3358 | |
3359 | mutex_unlock(&priv->mutex); | |
3360 | ||
b481de9c ZY |
3361 | IWL_DEBUG_MAC80211("leave\n"); |
3362 | return 0; | |
3363 | } | |
3364 | ||
bb8c093b | 3365 | static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
3366 | struct ieee80211_tx_queue_stats *stats) |
3367 | { | |
c79dd5b5 | 3368 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3369 | int i, avail; |
16466903 | 3370 | struct iwl_tx_queue *txq; |
443cfd45 | 3371 | struct iwl_queue *q; |
b481de9c ZY |
3372 | unsigned long flags; |
3373 | ||
3374 | IWL_DEBUG_MAC80211("enter\n"); | |
3375 | ||
fee1247a | 3376 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3377 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
3378 | return -EIO; | |
3379 | } | |
3380 | ||
3381 | spin_lock_irqsave(&priv->lock, flags); | |
3382 | ||
3383 | for (i = 0; i < AC_NUM; i++) { | |
3384 | txq = &priv->txq[i]; | |
3385 | q = &txq->q; | |
443cfd45 | 3386 | avail = iwl_queue_space(q); |
b481de9c | 3387 | |
57ffc589 JB |
3388 | stats[i].len = q->n_window - avail; |
3389 | stats[i].limit = q->n_window - q->high_mark; | |
3390 | stats[i].count = q->n_window; | |
b481de9c ZY |
3391 | |
3392 | } | |
3393 | spin_unlock_irqrestore(&priv->lock, flags); | |
3394 | ||
3395 | IWL_DEBUG_MAC80211("leave\n"); | |
3396 | ||
3397 | return 0; | |
3398 | } | |
3399 | ||
bb8c093b | 3400 | static int iwl4965_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
3401 | struct ieee80211_low_level_stats *stats) |
3402 | { | |
bf403db8 EK |
3403 | struct iwl_priv *priv = hw->priv; |
3404 | ||
3405 | priv = hw->priv; | |
b481de9c ZY |
3406 | IWL_DEBUG_MAC80211("enter\n"); |
3407 | IWL_DEBUG_MAC80211("leave\n"); | |
3408 | ||
3409 | return 0; | |
3410 | } | |
3411 | ||
bb8c093b | 3412 | static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 3413 | { |
c79dd5b5 | 3414 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3415 | unsigned long flags; |
3416 | ||
3417 | mutex_lock(&priv->mutex); | |
3418 | IWL_DEBUG_MAC80211("enter\n"); | |
3419 | ||
b481de9c | 3420 | spin_lock_irqsave(&priv->lock, flags); |
fd105e79 | 3421 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); |
b481de9c | 3422 | spin_unlock_irqrestore(&priv->lock, flags); |
b481de9c | 3423 | |
c7de35cd | 3424 | iwl_reset_qos(priv); |
b481de9c ZY |
3425 | |
3426 | cancel_delayed_work(&priv->post_associate); | |
3427 | ||
3428 | spin_lock_irqsave(&priv->lock, flags); | |
3429 | priv->assoc_id = 0; | |
3430 | priv->assoc_capability = 0; | |
b481de9c ZY |
3431 | priv->assoc_station_added = 0; |
3432 | ||
3433 | /* new association get rid of ibss beacon skb */ | |
3434 | if (priv->ibss_beacon) | |
3435 | dev_kfree_skb(priv->ibss_beacon); | |
3436 | ||
3437 | priv->ibss_beacon = NULL; | |
3438 | ||
3439 | priv->beacon_int = priv->hw->conf.beacon_int; | |
3109ece1 | 3440 | priv->timestamp = 0; |
b481de9c ZY |
3441 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA)) |
3442 | priv->beacon_int = 0; | |
3443 | ||
3444 | spin_unlock_irqrestore(&priv->lock, flags); | |
3445 | ||
fee1247a | 3446 | if (!iwl_is_ready_rf(priv)) { |
fde3571f MA |
3447 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
3448 | mutex_unlock(&priv->mutex); | |
3449 | return; | |
3450 | } | |
3451 | ||
052c4b9f | 3452 | /* we are restarting association process |
3453 | * clear RXON_FILTER_ASSOC_MSK bit | |
3454 | */ | |
3455 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
2a421b91 | 3456 | iwl_scan_cancel_timeout(priv, 100); |
052c4b9f | 3457 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 3458 | iwl4965_commit_rxon(priv); |
052c4b9f | 3459 | } |
3460 | ||
5da4b55f MA |
3461 | iwl_power_update_mode(priv, 0); |
3462 | ||
b481de9c ZY |
3463 | /* Per mac80211.h: This is only used in IBSS mode... */ |
3464 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
052c4b9f | 3465 | |
b481de9c ZY |
3466 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
3467 | mutex_unlock(&priv->mutex); | |
3468 | return; | |
3469 | } | |
3470 | ||
bb8c093b | 3471 | iwl4965_set_rate(priv); |
b481de9c ZY |
3472 | |
3473 | mutex_unlock(&priv->mutex); | |
3474 | ||
3475 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
3476 | } |
3477 | ||
e039fa4a | 3478 | static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3479 | { |
c79dd5b5 | 3480 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3481 | unsigned long flags; |
2ff75b78 | 3482 | __le64 timestamp; |
b481de9c ZY |
3483 | |
3484 | mutex_lock(&priv->mutex); | |
3485 | IWL_DEBUG_MAC80211("enter\n"); | |
3486 | ||
fee1247a | 3487 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3488 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
3489 | mutex_unlock(&priv->mutex); | |
3490 | return -EIO; | |
3491 | } | |
3492 | ||
3493 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
3494 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); | |
3495 | mutex_unlock(&priv->mutex); | |
3496 | return -EIO; | |
3497 | } | |
3498 | ||
3499 | spin_lock_irqsave(&priv->lock, flags); | |
3500 | ||
3501 | if (priv->ibss_beacon) | |
3502 | dev_kfree_skb(priv->ibss_beacon); | |
3503 | ||
3504 | priv->ibss_beacon = skb; | |
3505 | ||
3506 | priv->assoc_id = 0; | |
2ff75b78 AK |
3507 | timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; |
3508 | priv->timestamp = le64_to_cpu(timestamp) + (priv->beacon_int * 1000); | |
b481de9c ZY |
3509 | |
3510 | IWL_DEBUG_MAC80211("leave\n"); | |
3511 | spin_unlock_irqrestore(&priv->lock, flags); | |
3512 | ||
c7de35cd | 3513 | iwl_reset_qos(priv); |
b481de9c | 3514 | |
c46fbefa | 3515 | iwl4965_post_associate(priv); |
b481de9c ZY |
3516 | |
3517 | mutex_unlock(&priv->mutex); | |
3518 | ||
3519 | return 0; | |
3520 | } | |
3521 | ||
b481de9c ZY |
3522 | /***************************************************************************** |
3523 | * | |
3524 | * sysfs attributes | |
3525 | * | |
3526 | *****************************************************************************/ | |
3527 | ||
0a6857e7 | 3528 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3529 | |
3530 | /* | |
3531 | * The following adds a new attribute to the sysfs representation | |
3532 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
3533 | * used for controlling the debug level. | |
3534 | * | |
3535 | * See the level definitions in iwl for details. | |
3536 | */ | |
3537 | ||
8cf769c6 EK |
3538 | static ssize_t show_debug_level(struct device *d, |
3539 | struct device_attribute *attr, char *buf) | |
b481de9c | 3540 | { |
8cf769c6 EK |
3541 | struct iwl_priv *priv = d->driver_data; |
3542 | ||
3543 | return sprintf(buf, "0x%08X\n", priv->debug_level); | |
b481de9c | 3544 | } |
8cf769c6 EK |
3545 | static ssize_t store_debug_level(struct device *d, |
3546 | struct device_attribute *attr, | |
b481de9c ZY |
3547 | const char *buf, size_t count) |
3548 | { | |
8cf769c6 | 3549 | struct iwl_priv *priv = d->driver_data; |
b481de9c ZY |
3550 | char *p = (char *)buf; |
3551 | u32 val; | |
3552 | ||
3553 | val = simple_strtoul(p, &p, 0); | |
3554 | if (p == buf) | |
3555 | printk(KERN_INFO DRV_NAME | |
3556 | ": %s is not in hex or decimal form.\n", buf); | |
3557 | else | |
8cf769c6 | 3558 | priv->debug_level = val; |
b481de9c ZY |
3559 | |
3560 | return strnlen(buf, count); | |
3561 | } | |
3562 | ||
8cf769c6 EK |
3563 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
3564 | show_debug_level, store_debug_level); | |
3565 | ||
b481de9c | 3566 | |
0a6857e7 | 3567 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 3568 | |
b481de9c | 3569 | |
bc6f59bc TW |
3570 | static ssize_t show_version(struct device *d, |
3571 | struct device_attribute *attr, char *buf) | |
3572 | { | |
3573 | struct iwl_priv *priv = d->driver_data; | |
885ba202 | 3574 | struct iwl_alive_resp *palive = &priv->card_alive; |
f236a265 TW |
3575 | ssize_t pos = 0; |
3576 | u16 eeprom_ver; | |
bc6f59bc TW |
3577 | |
3578 | if (palive->is_valid) | |
f236a265 TW |
3579 | pos += sprintf(buf + pos, |
3580 | "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" | |
3581 | "fw type: 0x%01X 0x%01X\n", | |
bc6f59bc TW |
3582 | palive->ucode_major, palive->ucode_minor, |
3583 | palive->sw_rev[0], palive->sw_rev[1], | |
3584 | palive->ver_type, palive->ver_subtype); | |
bc6f59bc | 3585 | else |
f236a265 TW |
3586 | pos += sprintf(buf + pos, "fw not loaded\n"); |
3587 | ||
3588 | if (priv->eeprom) { | |
3589 | eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); | |
3590 | pos += sprintf(buf + pos, "EEPROM version: 0x%x\n", | |
3591 | eeprom_ver); | |
3592 | } else { | |
3593 | pos += sprintf(buf + pos, "EEPROM not initialzed\n"); | |
3594 | } | |
3595 | ||
3596 | return pos; | |
bc6f59bc TW |
3597 | } |
3598 | ||
3599 | static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); | |
3600 | ||
b481de9c ZY |
3601 | static ssize_t show_temperature(struct device *d, |
3602 | struct device_attribute *attr, char *buf) | |
3603 | { | |
c79dd5b5 | 3604 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 3605 | |
fee1247a | 3606 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3607 | return -EAGAIN; |
3608 | ||
91dbc5bd | 3609 | return sprintf(buf, "%d\n", priv->temperature); |
b481de9c ZY |
3610 | } |
3611 | ||
3612 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
3613 | ||
3614 | static ssize_t show_rs_window(struct device *d, | |
3615 | struct device_attribute *attr, | |
3616 | char *buf) | |
3617 | { | |
c79dd5b5 | 3618 | struct iwl_priv *priv = d->driver_data; |
bb8c093b | 3619 | return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID); |
b481de9c ZY |
3620 | } |
3621 | static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL); | |
3622 | ||
3623 | static ssize_t show_tx_power(struct device *d, | |
3624 | struct device_attribute *attr, char *buf) | |
3625 | { | |
c79dd5b5 | 3626 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
630fe9b6 | 3627 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
b481de9c ZY |
3628 | } |
3629 | ||
3630 | static ssize_t store_tx_power(struct device *d, | |
3631 | struct device_attribute *attr, | |
3632 | const char *buf, size_t count) | |
3633 | { | |
c79dd5b5 | 3634 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3635 | char *p = (char *)buf; |
3636 | u32 val; | |
3637 | ||
3638 | val = simple_strtoul(p, &p, 10); | |
3639 | if (p == buf) | |
3640 | printk(KERN_INFO DRV_NAME | |
3641 | ": %s is not in decimal form.\n", buf); | |
3642 | else | |
630fe9b6 | 3643 | iwl_set_tx_power(priv, val, false); |
b481de9c ZY |
3644 | |
3645 | return count; | |
3646 | } | |
3647 | ||
3648 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
3649 | ||
3650 | static ssize_t show_flags(struct device *d, | |
3651 | struct device_attribute *attr, char *buf) | |
3652 | { | |
c79dd5b5 | 3653 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3654 | |
3655 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
3656 | } | |
3657 | ||
3658 | static ssize_t store_flags(struct device *d, | |
3659 | struct device_attribute *attr, | |
3660 | const char *buf, size_t count) | |
3661 | { | |
c79dd5b5 | 3662 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3663 | u32 flags = simple_strtoul(buf, NULL, 0); |
3664 | ||
3665 | mutex_lock(&priv->mutex); | |
3666 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
3667 | /* Cancel any currently running scans... */ | |
2a421b91 | 3668 | if (iwl_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
3669 | IWL_WARNING("Could not cancel scan.\n"); |
3670 | else { | |
3671 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
3672 | flags); | |
3673 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 3674 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3675 | } |
3676 | } | |
3677 | mutex_unlock(&priv->mutex); | |
3678 | ||
3679 | return count; | |
3680 | } | |
3681 | ||
3682 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
3683 | ||
3684 | static ssize_t show_filter_flags(struct device *d, | |
3685 | struct device_attribute *attr, char *buf) | |
3686 | { | |
c79dd5b5 | 3687 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3688 | |
3689 | return sprintf(buf, "0x%04X\n", | |
3690 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
3691 | } | |
3692 | ||
3693 | static ssize_t store_filter_flags(struct device *d, | |
3694 | struct device_attribute *attr, | |
3695 | const char *buf, size_t count) | |
3696 | { | |
c79dd5b5 | 3697 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3698 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
3699 | ||
3700 | mutex_lock(&priv->mutex); | |
3701 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
3702 | /* Cancel any currently running scans... */ | |
2a421b91 | 3703 | if (iwl_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
3704 | IWL_WARNING("Could not cancel scan.\n"); |
3705 | else { | |
3706 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
3707 | "0x%04X\n", filter_flags); | |
3708 | priv->staging_rxon.filter_flags = | |
3709 | cpu_to_le32(filter_flags); | |
bb8c093b | 3710 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3711 | } |
3712 | } | |
3713 | mutex_unlock(&priv->mutex); | |
3714 | ||
3715 | return count; | |
3716 | } | |
3717 | ||
3718 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
3719 | store_filter_flags); | |
3720 | ||
c8b0e6e1 | 3721 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
3722 | |
3723 | static ssize_t show_measurement(struct device *d, | |
3724 | struct device_attribute *attr, char *buf) | |
3725 | { | |
c79dd5b5 | 3726 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 3727 | struct iwl4965_spectrum_notification measure_report; |
b481de9c ZY |
3728 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
3729 | u8 *data = (u8 *) & measure_report; | |
3730 | unsigned long flags; | |
3731 | ||
3732 | spin_lock_irqsave(&priv->lock, flags); | |
3733 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
3734 | spin_unlock_irqrestore(&priv->lock, flags); | |
3735 | return 0; | |
3736 | } | |
3737 | memcpy(&measure_report, &priv->measure_report, size); | |
3738 | priv->measurement_status = 0; | |
3739 | spin_unlock_irqrestore(&priv->lock, flags); | |
3740 | ||
3741 | while (size && (PAGE_SIZE - len)) { | |
3742 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3743 | PAGE_SIZE - len, 1); | |
3744 | len = strlen(buf); | |
3745 | if (PAGE_SIZE - len) | |
3746 | buf[len++] = '\n'; | |
3747 | ||
3748 | ofs += 16; | |
3749 | size -= min(size, 16U); | |
3750 | } | |
3751 | ||
3752 | return len; | |
3753 | } | |
3754 | ||
3755 | static ssize_t store_measurement(struct device *d, | |
3756 | struct device_attribute *attr, | |
3757 | const char *buf, size_t count) | |
3758 | { | |
c79dd5b5 | 3759 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3760 | struct ieee80211_measurement_params params = { |
3761 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
3762 | .start_time = cpu_to_le64(priv->last_tsf), | |
3763 | .duration = cpu_to_le16(1), | |
3764 | }; | |
3765 | u8 type = IWL_MEASURE_BASIC; | |
3766 | u8 buffer[32]; | |
3767 | u8 channel; | |
3768 | ||
3769 | if (count) { | |
3770 | char *p = buffer; | |
3771 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
3772 | channel = simple_strtoul(p, NULL, 0); | |
3773 | if (channel) | |
3774 | params.channel = channel; | |
3775 | ||
3776 | p = buffer; | |
3777 | while (*p && *p != ' ') | |
3778 | p++; | |
3779 | if (*p) | |
3780 | type = simple_strtoul(p + 1, NULL, 0); | |
3781 | } | |
3782 | ||
3783 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
3784 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 3785 | iwl4965_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
3786 | |
3787 | return count; | |
3788 | } | |
3789 | ||
3790 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
3791 | show_measurement, store_measurement); | |
c8b0e6e1 | 3792 | #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */ |
b481de9c ZY |
3793 | |
3794 | static ssize_t store_retry_rate(struct device *d, | |
3795 | struct device_attribute *attr, | |
3796 | const char *buf, size_t count) | |
3797 | { | |
c79dd5b5 | 3798 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3799 | |
3800 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
3801 | if (priv->retry_rate <= 0) | |
3802 | priv->retry_rate = 1; | |
3803 | ||
3804 | return count; | |
3805 | } | |
3806 | ||
3807 | static ssize_t show_retry_rate(struct device *d, | |
3808 | struct device_attribute *attr, char *buf) | |
3809 | { | |
c79dd5b5 | 3810 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3811 | return sprintf(buf, "%d", priv->retry_rate); |
3812 | } | |
3813 | ||
3814 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
3815 | store_retry_rate); | |
3816 | ||
3817 | static ssize_t store_power_level(struct device *d, | |
3818 | struct device_attribute *attr, | |
3819 | const char *buf, size_t count) | |
3820 | { | |
c79dd5b5 | 3821 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3822 | int rc; |
3823 | int mode; | |
3824 | ||
3825 | mode = simple_strtoul(buf, NULL, 0); | |
3826 | mutex_lock(&priv->mutex); | |
3827 | ||
fee1247a | 3828 | if (!iwl_is_ready(priv)) { |
b481de9c ZY |
3829 | rc = -EAGAIN; |
3830 | goto out; | |
3831 | } | |
3832 | ||
5da4b55f MA |
3833 | rc = iwl_power_set_user_mode(priv, mode); |
3834 | if (rc) { | |
3835 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
3836 | goto out; | |
b481de9c | 3837 | } |
b481de9c ZY |
3838 | rc = count; |
3839 | ||
3840 | out: | |
3841 | mutex_unlock(&priv->mutex); | |
3842 | return rc; | |
3843 | } | |
3844 | ||
3845 | #define MAX_WX_STRING 80 | |
3846 | ||
3847 | /* Values are in microsecond */ | |
3848 | static const s32 timeout_duration[] = { | |
3849 | 350000, | |
3850 | 250000, | |
3851 | 75000, | |
3852 | 37000, | |
3853 | 25000, | |
3854 | }; | |
3855 | static const s32 period_duration[] = { | |
3856 | 400000, | |
3857 | 700000, | |
3858 | 1000000, | |
3859 | 1000000, | |
3860 | 1000000 | |
3861 | }; | |
3862 | ||
3863 | static ssize_t show_power_level(struct device *d, | |
3864 | struct device_attribute *attr, char *buf) | |
3865 | { | |
c79dd5b5 | 3866 | struct iwl_priv *priv = dev_get_drvdata(d); |
5da4b55f | 3867 | int level = priv->power_data.power_mode; |
b481de9c ZY |
3868 | char *p = buf; |
3869 | ||
3870 | p += sprintf(p, "%d ", level); | |
3871 | switch (level) { | |
3872 | case IWL_POWER_MODE_CAM: | |
3873 | case IWL_POWER_AC: | |
3874 | p += sprintf(p, "(AC)"); | |
3875 | break; | |
3876 | case IWL_POWER_BATTERY: | |
3877 | p += sprintf(p, "(BATTERY)"); | |
3878 | break; | |
3879 | default: | |
3880 | p += sprintf(p, | |
3881 | "(Timeout %dms, Period %dms)", | |
3882 | timeout_duration[level - 1] / 1000, | |
3883 | period_duration[level - 1] / 1000); | |
3884 | } | |
5da4b55f | 3885 | /* |
b481de9c ZY |
3886 | if (!(priv->power_mode & IWL_POWER_ENABLED)) |
3887 | p += sprintf(p, " OFF\n"); | |
3888 | else | |
3889 | p += sprintf(p, " \n"); | |
5da4b55f MA |
3890 | */ |
3891 | p += sprintf(p, " \n"); | |
b481de9c | 3892 | return (p - buf + 1); |
b481de9c ZY |
3893 | } |
3894 | ||
3895 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
3896 | store_power_level); | |
3897 | ||
3898 | static ssize_t show_channels(struct device *d, | |
3899 | struct device_attribute *attr, char *buf) | |
3900 | { | |
5d72a1f5 EK |
3901 | |
3902 | struct iwl_priv *priv = dev_get_drvdata(d); | |
3903 | struct ieee80211_channel *channels = NULL; | |
3904 | const struct ieee80211_supported_band *supp_band = NULL; | |
3905 | int len = 0, i; | |
3906 | int count = 0; | |
3907 | ||
3908 | if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status)) | |
3909 | return -EAGAIN; | |
3910 | ||
3911 | supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ); | |
3912 | channels = supp_band->channels; | |
3913 | count = supp_band->n_channels; | |
3914 | ||
3915 | len += sprintf(&buf[len], | |
3916 | "Displaying %d channels in 2.4GHz band " | |
3917 | "(802.11bg):\n", count); | |
3918 | ||
3919 | for (i = 0; i < count; i++) | |
3920 | len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n", | |
3921 | ieee80211_frequency_to_channel( | |
3922 | channels[i].center_freq), | |
3923 | channels[i].max_power, | |
3924 | channels[i].flags & IEEE80211_CHAN_RADAR ? | |
3925 | " (IEEE 802.11h required)" : "", | |
3926 | (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS) | |
3927 | || (channels[i].flags & | |
3928 | IEEE80211_CHAN_RADAR)) ? "" : | |
3929 | ", IBSS", | |
3930 | channels[i].flags & | |
3931 | IEEE80211_CHAN_PASSIVE_SCAN ? | |
3932 | "passive only" : "active/passive"); | |
3933 | ||
3934 | supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ); | |
3935 | channels = supp_band->channels; | |
3936 | count = supp_band->n_channels; | |
3937 | ||
3938 | len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band " | |
3939 | "(802.11a):\n", count); | |
3940 | ||
3941 | for (i = 0; i < count; i++) | |
3942 | len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n", | |
3943 | ieee80211_frequency_to_channel( | |
3944 | channels[i].center_freq), | |
3945 | channels[i].max_power, | |
3946 | channels[i].flags & IEEE80211_CHAN_RADAR ? | |
3947 | " (IEEE 802.11h required)" : "", | |
3948 | ((channels[i].flags & IEEE80211_CHAN_NO_IBSS) | |
3949 | || (channels[i].flags & | |
3950 | IEEE80211_CHAN_RADAR)) ? "" : | |
3951 | ", IBSS", | |
3952 | channels[i].flags & | |
3953 | IEEE80211_CHAN_PASSIVE_SCAN ? | |
3954 | "passive only" : "active/passive"); | |
3955 | ||
3956 | return len; | |
b481de9c ZY |
3957 | } |
3958 | ||
3959 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
3960 | ||
3961 | static ssize_t show_statistics(struct device *d, | |
3962 | struct device_attribute *attr, char *buf) | |
3963 | { | |
c79dd5b5 | 3964 | struct iwl_priv *priv = dev_get_drvdata(d); |
8f91aecb | 3965 | u32 size = sizeof(struct iwl_notif_statistics); |
b481de9c ZY |
3966 | u32 len = 0, ofs = 0; |
3967 | u8 *data = (u8 *) & priv->statistics; | |
3968 | int rc = 0; | |
3969 | ||
fee1247a | 3970 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3971 | return -EAGAIN; |
3972 | ||
3973 | mutex_lock(&priv->mutex); | |
49ea8596 | 3974 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
3975 | mutex_unlock(&priv->mutex); |
3976 | ||
3977 | if (rc) { | |
3978 | len = sprintf(buf, | |
3979 | "Error sending statistics request: 0x%08X\n", rc); | |
3980 | return len; | |
3981 | } | |
3982 | ||
3983 | while (size && (PAGE_SIZE - len)) { | |
3984 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3985 | PAGE_SIZE - len, 1); | |
3986 | len = strlen(buf); | |
3987 | if (PAGE_SIZE - len) | |
3988 | buf[len++] = '\n'; | |
3989 | ||
3990 | ofs += 16; | |
3991 | size -= min(size, 16U); | |
3992 | } | |
3993 | ||
3994 | return len; | |
3995 | } | |
3996 | ||
3997 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
3998 | ||
b481de9c ZY |
3999 | static ssize_t show_status(struct device *d, |
4000 | struct device_attribute *attr, char *buf) | |
4001 | { | |
c79dd5b5 | 4002 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
fee1247a | 4003 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4004 | return -EAGAIN; |
4005 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
4006 | } | |
4007 | ||
4008 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
4009 | ||
b481de9c ZY |
4010 | /***************************************************************************** |
4011 | * | |
4012 | * driver setup and teardown | |
4013 | * | |
4014 | *****************************************************************************/ | |
4015 | ||
4e39317d | 4016 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
4017 | { |
4018 | priv->workqueue = create_workqueue(DRV_NAME); | |
4019 | ||
4020 | init_waitqueue_head(&priv->wait_command_queue); | |
4021 | ||
bb8c093b CH |
4022 | INIT_WORK(&priv->up, iwl4965_bg_up); |
4023 | INIT_WORK(&priv->restart, iwl4965_bg_restart); | |
4024 | INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish); | |
bb8c093b CH |
4025 | INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill); |
4026 | INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update); | |
4419e39b | 4027 | INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor); |
16e727e8 | 4028 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
bb8c093b | 4029 | INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate); |
4a4a9e81 TW |
4030 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); |
4031 | INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); | |
2a421b91 TW |
4032 | |
4033 | /* FIXME : remove when resolved PENDING */ | |
4034 | INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed); | |
4035 | iwl_setup_scan_deferred_work(priv); | |
bb8c093b | 4036 | |
4e39317d EG |
4037 | if (priv->cfg->ops->lib->setup_deferred_work) |
4038 | priv->cfg->ops->lib->setup_deferred_work(priv); | |
4039 | ||
4040 | init_timer(&priv->statistics_periodic); | |
4041 | priv->statistics_periodic.data = (unsigned long)priv; | |
4042 | priv->statistics_periodic.function = iwl4965_bg_statistics_periodic; | |
b481de9c ZY |
4043 | |
4044 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 4045 | iwl4965_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
4046 | } |
4047 | ||
4e39317d | 4048 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 4049 | { |
4e39317d EG |
4050 | if (priv->cfg->ops->lib->cancel_deferred_work) |
4051 | priv->cfg->ops->lib->cancel_deferred_work(priv); | |
b481de9c | 4052 | |
3ae6a054 | 4053 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
4054 | cancel_delayed_work(&priv->scan_check); |
4055 | cancel_delayed_work(&priv->alive_start); | |
4056 | cancel_delayed_work(&priv->post_associate); | |
4057 | cancel_work_sync(&priv->beacon_update); | |
4e39317d | 4058 | del_timer_sync(&priv->statistics_periodic); |
b481de9c ZY |
4059 | } |
4060 | ||
bb8c093b | 4061 | static struct attribute *iwl4965_sysfs_entries[] = { |
b481de9c | 4062 | &dev_attr_channels.attr, |
b481de9c ZY |
4063 | &dev_attr_flags.attr, |
4064 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 4065 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
4066 | &dev_attr_measurement.attr, |
4067 | #endif | |
4068 | &dev_attr_power_level.attr, | |
4069 | &dev_attr_retry_rate.attr, | |
b481de9c ZY |
4070 | &dev_attr_rs_window.attr, |
4071 | &dev_attr_statistics.attr, | |
4072 | &dev_attr_status.attr, | |
4073 | &dev_attr_temperature.attr, | |
b481de9c | 4074 | &dev_attr_tx_power.attr, |
8cf769c6 EK |
4075 | #ifdef CONFIG_IWLWIFI_DEBUG |
4076 | &dev_attr_debug_level.attr, | |
4077 | #endif | |
bc6f59bc | 4078 | &dev_attr_version.attr, |
b481de9c ZY |
4079 | |
4080 | NULL | |
4081 | }; | |
4082 | ||
bb8c093b | 4083 | static struct attribute_group iwl4965_attribute_group = { |
b481de9c | 4084 | .name = NULL, /* put in device directory */ |
bb8c093b | 4085 | .attrs = iwl4965_sysfs_entries, |
b481de9c ZY |
4086 | }; |
4087 | ||
bb8c093b CH |
4088 | static struct ieee80211_ops iwl4965_hw_ops = { |
4089 | .tx = iwl4965_mac_tx, | |
4090 | .start = iwl4965_mac_start, | |
4091 | .stop = iwl4965_mac_stop, | |
4092 | .add_interface = iwl4965_mac_add_interface, | |
4093 | .remove_interface = iwl4965_mac_remove_interface, | |
4094 | .config = iwl4965_mac_config, | |
4095 | .config_interface = iwl4965_mac_config_interface, | |
4096 | .configure_filter = iwl4965_configure_filter, | |
4097 | .set_key = iwl4965_mac_set_key, | |
ab885f8c | 4098 | .update_tkip_key = iwl4965_mac_update_tkip_key, |
bb8c093b CH |
4099 | .get_stats = iwl4965_mac_get_stats, |
4100 | .get_tx_stats = iwl4965_mac_get_tx_stats, | |
4101 | .conf_tx = iwl4965_mac_conf_tx, | |
bb8c093b CH |
4102 | .reset_tsf = iwl4965_mac_reset_tsf, |
4103 | .beacon_update = iwl4965_mac_beacon_update, | |
471b3efd | 4104 | .bss_info_changed = iwl4965_bss_info_changed, |
9ab46173 | 4105 | .ampdu_action = iwl4965_mac_ampdu_action, |
bb8c093b | 4106 | .hw_scan = iwl4965_mac_hw_scan |
b481de9c ZY |
4107 | }; |
4108 | ||
bb8c093b | 4109 | static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
4110 | { |
4111 | int err = 0; | |
c79dd5b5 | 4112 | struct iwl_priv *priv; |
b481de9c | 4113 | struct ieee80211_hw *hw; |
82b9a121 | 4114 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
0359facc | 4115 | unsigned long flags; |
5a66926a | 4116 | DECLARE_MAC_BUF(mac); |
b481de9c | 4117 | |
316c30d9 AK |
4118 | /************************ |
4119 | * 1. Allocating HW data | |
4120 | ************************/ | |
4121 | ||
6440adb5 BC |
4122 | /* Disabling hardware scan means that mac80211 will perform scans |
4123 | * "the hard way", rather than using device's scan. */ | |
1ea87396 | 4124 | if (cfg->mod_params->disable_hw_scan) { |
bf403db8 EK |
4125 | if (cfg->mod_params->debug & IWL_DL_INFO) |
4126 | dev_printk(KERN_DEBUG, &(pdev->dev), | |
4127 | "Disabling hw_scan\n"); | |
bb8c093b | 4128 | iwl4965_hw_ops.hw_scan = NULL; |
b481de9c ZY |
4129 | } |
4130 | ||
1d0a082d AK |
4131 | hw = iwl_alloc_all(cfg, &iwl4965_hw_ops); |
4132 | if (!hw) { | |
b481de9c ZY |
4133 | err = -ENOMEM; |
4134 | goto out; | |
4135 | } | |
1d0a082d AK |
4136 | priv = hw->priv; |
4137 | /* At this point both hw and priv are allocated. */ | |
4138 | ||
b481de9c ZY |
4139 | SET_IEEE80211_DEV(hw, &pdev->dev); |
4140 | ||
4141 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); | |
82b9a121 | 4142 | priv->cfg = cfg; |
b481de9c | 4143 | priv->pci_dev = pdev; |
316c30d9 | 4144 | |
0a6857e7 | 4145 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 4146 | priv->debug_level = priv->cfg->mod_params->debug; |
b481de9c ZY |
4147 | atomic_set(&priv->restrict_refcnt, 0); |
4148 | #endif | |
b481de9c | 4149 | |
316c30d9 AK |
4150 | /************************** |
4151 | * 2. Initializing PCI bus | |
4152 | **************************/ | |
4153 | if (pci_enable_device(pdev)) { | |
4154 | err = -ENODEV; | |
4155 | goto out_ieee80211_free_hw; | |
4156 | } | |
4157 | ||
4158 | pci_set_master(pdev); | |
4159 | ||
cc2a8ea8 | 4160 | err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
316c30d9 | 4161 | if (!err) |
cc2a8ea8 RR |
4162 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
4163 | if (err) { | |
4164 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
4165 | if (!err) | |
4166 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
4167 | /* both attempts failed: */ | |
316c30d9 | 4168 | if (err) { |
cc2a8ea8 RR |
4169 | printk(KERN_WARNING "%s: No suitable DMA available.\n", |
4170 | DRV_NAME); | |
316c30d9 | 4171 | goto out_pci_disable_device; |
cc2a8ea8 | 4172 | } |
316c30d9 AK |
4173 | } |
4174 | ||
4175 | err = pci_request_regions(pdev, DRV_NAME); | |
4176 | if (err) | |
4177 | goto out_pci_disable_device; | |
4178 | ||
4179 | pci_set_drvdata(pdev, priv); | |
4180 | ||
4181 | /* We disable the RETRY_TIMEOUT register (0x41) to keep | |
4182 | * PCI Tx retries from interfering with C3 CPU state */ | |
4183 | pci_write_config_byte(pdev, 0x41, 0x00); | |
4184 | ||
4185 | /*********************** | |
4186 | * 3. Read REV register | |
4187 | ***********************/ | |
4188 | priv->hw_base = pci_iomap(pdev, 0, 0); | |
4189 | if (!priv->hw_base) { | |
4190 | err = -ENODEV; | |
4191 | goto out_pci_release_regions; | |
4192 | } | |
4193 | ||
4194 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
4195 | (unsigned long long) pci_resource_len(pdev, 0)); | |
4196 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
4197 | ||
b661c819 | 4198 | iwl_hw_detect(priv); |
316c30d9 | 4199 | printk(KERN_INFO DRV_NAME |
b661c819 TW |
4200 | ": Detected Intel Wireless WiFi Link %s REV=0x%X\n", |
4201 | priv->cfg->name, priv->hw_rev); | |
316c30d9 | 4202 | |
91238714 TW |
4203 | /* amp init */ |
4204 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
316c30d9 | 4205 | if (err < 0) { |
91238714 | 4206 | IWL_DEBUG_INFO("Failed to init APMG\n"); |
316c30d9 AK |
4207 | goto out_iounmap; |
4208 | } | |
91238714 TW |
4209 | /***************** |
4210 | * 4. Read EEPROM | |
4211 | *****************/ | |
316c30d9 AK |
4212 | /* Read the EEPROM */ |
4213 | err = iwl_eeprom_init(priv); | |
4214 | if (err) { | |
4215 | IWL_ERROR("Unable to init EEPROM\n"); | |
4216 | goto out_iounmap; | |
4217 | } | |
8614f360 TW |
4218 | err = iwl_eeprom_check_version(priv); |
4219 | if (err) | |
4220 | goto out_iounmap; | |
4221 | ||
02883017 | 4222 | /* extract MAC Address */ |
316c30d9 AK |
4223 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
4224 | IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr)); | |
4225 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
4226 | ||
4227 | /************************ | |
4228 | * 5. Setup HW constants | |
4229 | ************************/ | |
da154e30 | 4230 | if (iwl_set_hw_params(priv)) { |
5425e490 | 4231 | IWL_ERROR("failed to set hw parameters\n"); |
073d3f5f | 4232 | goto out_free_eeprom; |
316c30d9 AK |
4233 | } |
4234 | ||
4235 | /******************* | |
6ba87956 | 4236 | * 6. Setup priv |
316c30d9 | 4237 | *******************/ |
b481de9c | 4238 | |
6ba87956 | 4239 | err = iwl_init_drv(priv); |
bf85ea4f | 4240 | if (err) |
399f4900 | 4241 | goto out_free_eeprom; |
bf85ea4f | 4242 | /* At this point both hw and priv are initialized. */ |
316c30d9 AK |
4243 | |
4244 | /********************************** | |
4245 | * 7. Initialize module parameters | |
4246 | **********************************/ | |
4247 | ||
4248 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
1ea87396 | 4249 | if (priv->cfg->mod_params->disable) { |
316c30d9 AK |
4250 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
4251 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
4252 | } | |
4253 | ||
316c30d9 AK |
4254 | /******************** |
4255 | * 8. Setup services | |
4256 | ********************/ | |
0359facc | 4257 | spin_lock_irqsave(&priv->lock, flags); |
316c30d9 | 4258 | iwl4965_disable_interrupts(priv); |
0359facc | 4259 | spin_unlock_irqrestore(&priv->lock, flags); |
316c30d9 AK |
4260 | |
4261 | err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
4262 | if (err) { | |
4263 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
6ba87956 | 4264 | goto out_uninit_drv; |
316c30d9 AK |
4265 | } |
4266 | ||
316c30d9 | 4267 | |
4e39317d | 4268 | iwl_setup_deferred_work(priv); |
653fa4a0 | 4269 | iwl_setup_rx_handlers(priv); |
316c30d9 AK |
4270 | |
4271 | /******************** | |
4272 | * 9. Conclude | |
4273 | ********************/ | |
5a66926a ZY |
4274 | pci_save_state(pdev); |
4275 | pci_disable_device(pdev); | |
b481de9c | 4276 | |
6ba87956 TW |
4277 | /********************************** |
4278 | * 10. Setup and register mac80211 | |
4279 | **********************************/ | |
4280 | ||
4281 | err = iwl_setup_mac(priv); | |
4282 | if (err) | |
4283 | goto out_remove_sysfs; | |
4284 | ||
4285 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
4286 | if (err) | |
4287 | IWL_ERROR("failed to create debugfs files\n"); | |
4288 | ||
58d0f361 EG |
4289 | err = iwl_rfkill_init(priv); |
4290 | if (err) | |
4291 | IWL_ERROR("Unable to initialize RFKILL system. " | |
4292 | "Ignoring error: %d\n", err); | |
4293 | iwl_power_initialize(priv); | |
b481de9c ZY |
4294 | return 0; |
4295 | ||
316c30d9 AK |
4296 | out_remove_sysfs: |
4297 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
6ba87956 TW |
4298 | out_uninit_drv: |
4299 | iwl_uninit_drv(priv); | |
073d3f5f TW |
4300 | out_free_eeprom: |
4301 | iwl_eeprom_free(priv); | |
b481de9c ZY |
4302 | out_iounmap: |
4303 | pci_iounmap(pdev, priv->hw_base); | |
4304 | out_pci_release_regions: | |
4305 | pci_release_regions(pdev); | |
316c30d9 | 4306 | pci_set_drvdata(pdev, NULL); |
b481de9c ZY |
4307 | out_pci_disable_device: |
4308 | pci_disable_device(pdev); | |
b481de9c ZY |
4309 | out_ieee80211_free_hw: |
4310 | ieee80211_free_hw(priv->hw); | |
4311 | out: | |
4312 | return err; | |
4313 | } | |
4314 | ||
c83dbf68 | 4315 | static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) |
b481de9c | 4316 | { |
c79dd5b5 | 4317 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
0359facc | 4318 | unsigned long flags; |
b481de9c ZY |
4319 | |
4320 | if (!priv) | |
4321 | return; | |
4322 | ||
4323 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
4324 | ||
67249625 EG |
4325 | iwl_dbgfs_unregister(priv); |
4326 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
4327 | ||
c4f55232 RR |
4328 | if (priv->mac80211_registered) { |
4329 | ieee80211_unregister_hw(priv->hw); | |
4330 | priv->mac80211_registered = 0; | |
4331 | } | |
4332 | ||
b481de9c | 4333 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 4334 | |
bb8c093b | 4335 | iwl4965_down(priv); |
b481de9c | 4336 | |
0359facc MA |
4337 | /* make sure we flush any pending irq or |
4338 | * tasklet for the driver | |
4339 | */ | |
4340 | spin_lock_irqsave(&priv->lock, flags); | |
4341 | iwl4965_disable_interrupts(priv); | |
4342 | spin_unlock_irqrestore(&priv->lock, flags); | |
4343 | ||
4344 | iwl_synchronize_irq(priv); | |
4345 | ||
58d0f361 | 4346 | iwl_rfkill_unregister(priv); |
bb8c093b | 4347 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
4348 | |
4349 | if (priv->rxq.bd) | |
a55360e4 | 4350 | iwl_rx_queue_free(priv, &priv->rxq); |
1053d35f | 4351 | iwl_hw_txq_ctx_free(priv); |
b481de9c | 4352 | |
37deb2a0 | 4353 | iwl_clear_stations_table(priv); |
073d3f5f | 4354 | iwl_eeprom_free(priv); |
b481de9c | 4355 | |
b481de9c | 4356 | |
948c171c MA |
4357 | /*netif_stop_queue(dev); */ |
4358 | flush_workqueue(priv->workqueue); | |
4359 | ||
bb8c093b | 4360 | /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes |
b481de9c ZY |
4361 | * priv->workqueue... so we can't take down the workqueue |
4362 | * until now... */ | |
4363 | destroy_workqueue(priv->workqueue); | |
4364 | priv->workqueue = NULL; | |
4365 | ||
b481de9c ZY |
4366 | pci_iounmap(pdev, priv->hw_base); |
4367 | pci_release_regions(pdev); | |
4368 | pci_disable_device(pdev); | |
4369 | pci_set_drvdata(pdev, NULL); | |
4370 | ||
6ba87956 | 4371 | iwl_uninit_drv(priv); |
b481de9c ZY |
4372 | |
4373 | if (priv->ibss_beacon) | |
4374 | dev_kfree_skb(priv->ibss_beacon); | |
4375 | ||
4376 | ieee80211_free_hw(priv->hw); | |
4377 | } | |
4378 | ||
4379 | #ifdef CONFIG_PM | |
4380 | ||
bb8c093b | 4381 | static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 4382 | { |
c79dd5b5 | 4383 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 4384 | |
e655b9f0 ZY |
4385 | if (priv->is_open) { |
4386 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
4387 | iwl4965_mac_stop(priv->hw); | |
4388 | priv->is_open = 1; | |
4389 | } | |
b481de9c | 4390 | |
b481de9c ZY |
4391 | pci_set_power_state(pdev, PCI_D3hot); |
4392 | ||
b481de9c ZY |
4393 | return 0; |
4394 | } | |
4395 | ||
bb8c093b | 4396 | static int iwl4965_pci_resume(struct pci_dev *pdev) |
b481de9c | 4397 | { |
c79dd5b5 | 4398 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 4399 | |
b481de9c | 4400 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 4401 | |
e655b9f0 ZY |
4402 | if (priv->is_open) |
4403 | iwl4965_mac_start(priv->hw); | |
b481de9c | 4404 | |
e655b9f0 | 4405 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
4406 | return 0; |
4407 | } | |
4408 | ||
4409 | #endif /* CONFIG_PM */ | |
4410 | ||
4411 | /***************************************************************************** | |
4412 | * | |
4413 | * driver and module entry point | |
4414 | * | |
4415 | *****************************************************************************/ | |
4416 | ||
fed9017e RR |
4417 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
4418 | static struct pci_device_id iwl_hw_card_ids[] = { | |
4419 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
4420 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
5a6a256e TW |
4421 | #ifdef CONFIG_IWL5000 |
4422 | {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, | |
4423 | {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, | |
4424 | {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)}, | |
4425 | #endif /* CONFIG_IWL5000 */ | |
fed9017e RR |
4426 | {0} |
4427 | }; | |
4428 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); | |
4429 | ||
4430 | static struct pci_driver iwl_driver = { | |
b481de9c | 4431 | .name = DRV_NAME, |
fed9017e | 4432 | .id_table = iwl_hw_card_ids, |
bb8c093b CH |
4433 | .probe = iwl4965_pci_probe, |
4434 | .remove = __devexit_p(iwl4965_pci_remove), | |
b481de9c | 4435 | #ifdef CONFIG_PM |
bb8c093b CH |
4436 | .suspend = iwl4965_pci_suspend, |
4437 | .resume = iwl4965_pci_resume, | |
b481de9c ZY |
4438 | #endif |
4439 | }; | |
4440 | ||
bb8c093b | 4441 | static int __init iwl4965_init(void) |
b481de9c ZY |
4442 | { |
4443 | ||
4444 | int ret; | |
4445 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
4446 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
4447 | |
4448 | ret = iwl4965_rate_control_register(); | |
4449 | if (ret) { | |
4450 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
4451 | return ret; | |
4452 | } | |
4453 | ||
fed9017e | 4454 | ret = pci_register_driver(&iwl_driver); |
b481de9c ZY |
4455 | if (ret) { |
4456 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 4457 | goto error_register; |
b481de9c | 4458 | } |
b481de9c ZY |
4459 | |
4460 | return ret; | |
897e1cf2 | 4461 | |
897e1cf2 RC |
4462 | error_register: |
4463 | iwl4965_rate_control_unregister(); | |
4464 | return ret; | |
b481de9c ZY |
4465 | } |
4466 | ||
bb8c093b | 4467 | static void __exit iwl4965_exit(void) |
b481de9c | 4468 | { |
fed9017e | 4469 | pci_unregister_driver(&iwl_driver); |
897e1cf2 | 4470 | iwl4965_rate_control_unregister(); |
b481de9c ZY |
4471 | } |
4472 | ||
bb8c093b CH |
4473 | module_exit(iwl4965_exit); |
4474 | module_init(iwl4965_init); |