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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
b481de9c ZY |
32 | #include <linux/init.h> |
33 | #include <linux/pci.h> | |
34 | #include <linux/dma-mapping.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/wireless.h> | |
39 | #include <linux/firmware.h> | |
b481de9c ZY |
40 | #include <linux/etherdevice.h> |
41 | #include <linux/if_arp.h> | |
42 | ||
b481de9c ZY |
43 | #include <net/mac80211.h> |
44 | ||
45 | #include <asm/div64.h> | |
46 | ||
6bc913bd | 47 | #include "iwl-eeprom.h" |
3e0d4cb1 | 48 | #include "iwl-dev.h" |
fee1247a | 49 | #include "iwl-core.h" |
3395f6e9 | 50 | #include "iwl-io.h" |
b481de9c | 51 | #include "iwl-helpers.h" |
6974e363 | 52 | #include "iwl-sta.h" |
f0832f13 | 53 | #include "iwl-calib.h" |
b481de9c | 54 | |
416e1438 | 55 | |
b481de9c ZY |
56 | /****************************************************************************** |
57 | * | |
58 | * module boiler plate | |
59 | * | |
60 | ******************************************************************************/ | |
61 | ||
b481de9c ZY |
62 | /* |
63 | * module name, copyright, version, etc. | |
64 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
65 | */ | |
66 | ||
d783b061 | 67 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
b481de9c | 68 | |
0a6857e7 | 69 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
70 | #define VD "d" |
71 | #else | |
72 | #define VD | |
73 | #endif | |
74 | ||
4fc22b21 | 75 | #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT |
b481de9c ZY |
76 | #define VS "s" |
77 | #else | |
78 | #define VS | |
79 | #endif | |
80 | ||
df48c323 | 81 | #define DRV_VERSION IWLWIFI_VERSION VD VS |
b481de9c | 82 | |
b481de9c ZY |
83 | |
84 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
85 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 86 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c | 87 | MODULE_LICENSE("GPL"); |
4fc22b21 | 88 | MODULE_ALIAS("iwl4965"); |
b481de9c | 89 | |
b481de9c | 90 | /*************** STATION TABLE MANAGEMENT **** |
9fbab516 | 91 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
92 | * the functionality provided here |
93 | */ | |
94 | ||
95 | /**************************************************************/ | |
96 | ||
b481de9c | 97 | |
b481de9c | 98 | |
5b9f8cd3 | 99 | static void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
deb09c43 | 100 | { |
c1adf9fb | 101 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
deb09c43 EG |
102 | |
103 | if (hw_decrypt) | |
104 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
105 | else | |
106 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
107 | ||
108 | } | |
109 | ||
b481de9c | 110 | /** |
54559703 | 111 | * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 112 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 113 | * |
9fbab516 BC |
114 | * If the RXON structure is changing enough to require a new tune, |
115 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
116 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 117 | */ |
54559703 | 118 | static int iwl_full_rxon_required(struct iwl_priv *priv) |
b481de9c ZY |
119 | { |
120 | ||
121 | /* These items are only settable from the full RXON command */ | |
5d1e2325 | 122 | if (!(iwl_is_associated(priv)) || |
b481de9c ZY |
123 | compare_ether_addr(priv->staging_rxon.bssid_addr, |
124 | priv->active_rxon.bssid_addr) || | |
125 | compare_ether_addr(priv->staging_rxon.node_addr, | |
126 | priv->active_rxon.node_addr) || | |
127 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
128 | priv->active_rxon.wlap_bssid_addr) || | |
129 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
130 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
131 | (priv->staging_rxon.air_propagation != | |
132 | priv->active_rxon.air_propagation) || | |
133 | (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != | |
134 | priv->active_rxon.ofdm_ht_single_stream_basic_rates) || | |
135 | (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != | |
136 | priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || | |
b481de9c ZY |
137 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) |
138 | return 1; | |
139 | ||
140 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
141 | * be updated with the RXON_ASSOC command -- however only some | |
142 | * flag transitions are allowed using RXON_ASSOC */ | |
143 | ||
144 | /* Check if we are not switching bands */ | |
145 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
146 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
147 | return 1; | |
148 | ||
149 | /* Check if we are switching association toggle */ | |
150 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
151 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
152 | return 1; | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
b481de9c | 157 | /** |
5b9f8cd3 | 158 | * iwl_commit_rxon - commit staging_rxon to hardware |
b481de9c | 159 | * |
01ebd063 | 160 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
161 | * the active_rxon structure is updated with the new data. This |
162 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
163 | * a HW tune is required based on the RXON structure changes. | |
164 | */ | |
5b9f8cd3 | 165 | static int iwl_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
166 | { |
167 | /* cast away the const for active_rxon in this function */ | |
c1adf9fb | 168 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
43d59b32 EG |
169 | int ret; |
170 | bool new_assoc = | |
171 | !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK); | |
b481de9c | 172 | |
fee1247a | 173 | if (!iwl_is_alive(priv)) |
43d59b32 | 174 | return -EBUSY; |
b481de9c ZY |
175 | |
176 | /* always get timestamp with Rx frame */ | |
177 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
a326a5d0 EG |
178 | /* allow CTS-to-self if possible. this is relevant only for |
179 | * 5000, but will not damage 4965 */ | |
180 | priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN; | |
b481de9c | 181 | |
8f5c87dc | 182 | ret = iwl_agn_check_rxon_cmd(&priv->staging_rxon); |
43d59b32 | 183 | if (ret) { |
b481de9c ZY |
184 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); |
185 | return -EINVAL; | |
186 | } | |
187 | ||
188 | /* If we don't need to send a full RXON, we can use | |
5b9f8cd3 | 189 | * iwl_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 190 | * and other flags for the current radio configuration. */ |
54559703 | 191 | if (!iwl_full_rxon_required(priv)) { |
43d59b32 EG |
192 | ret = iwl_send_rxon_assoc(priv); |
193 | if (ret) { | |
194 | IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret); | |
195 | return ret; | |
b481de9c ZY |
196 | } |
197 | ||
198 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
199 | return 0; |
200 | } | |
201 | ||
202 | /* station table will be cleared */ | |
203 | priv->assoc_station_added = 0; | |
204 | ||
b481de9c ZY |
205 | /* If we are currently associated and the new config requires |
206 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
207 | * we must clear the associated from the active configuration | |
208 | * before we apply the new config */ | |
43d59b32 | 209 | if (iwl_is_associated(priv) && new_assoc) { |
b481de9c ZY |
210 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); |
211 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
212 | ||
43d59b32 | 213 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 214 | sizeof(struct iwl_rxon_cmd), |
b481de9c ZY |
215 | &priv->active_rxon); |
216 | ||
217 | /* If the mask clearing failed then we set | |
218 | * active_rxon back to what it was previously */ | |
43d59b32 | 219 | if (ret) { |
b481de9c | 220 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; |
43d59b32 EG |
221 | IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret); |
222 | return ret; | |
b481de9c | 223 | } |
b481de9c ZY |
224 | } |
225 | ||
226 | IWL_DEBUG_INFO("Sending RXON\n" | |
227 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
228 | "* channel = %d\n" | |
e174961c | 229 | "* bssid = %pM\n", |
43d59b32 | 230 | (new_assoc ? "" : "out"), |
b481de9c | 231 | le16_to_cpu(priv->staging_rxon.channel), |
e174961c | 232 | priv->staging_rxon.bssid_addr); |
b481de9c | 233 | |
5b9f8cd3 | 234 | iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
43d59b32 EG |
235 | |
236 | /* Apply the new configuration | |
237 | * RXON unassoc clears the station table in uCode, send it before | |
238 | * we add the bcast station. If assoc bit is set, we will send RXON | |
239 | * after having added the bcast and bssid station. | |
240 | */ | |
241 | if (!new_assoc) { | |
242 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
c1adf9fb | 243 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
43d59b32 EG |
244 | if (ret) { |
245 | IWL_ERROR("Error setting new RXON (%d)\n", ret); | |
246 | return ret; | |
247 | } | |
248 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
249 | } |
250 | ||
37deb2a0 | 251 | iwl_clear_stations_table(priv); |
556f8db7 | 252 | |
b481de9c ZY |
253 | if (!priv->error_recovering) |
254 | priv->start_calib = 0; | |
255 | ||
b481de9c | 256 | /* Add the broadcast address so we can send broadcast frames */ |
4f40e4d9 | 257 | if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == |
43d59b32 | 258 | IWL_INVALID_STATION) { |
b481de9c ZY |
259 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); |
260 | return -EIO; | |
261 | } | |
262 | ||
263 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
264 | * add the IWL_AP_ID to the station rate table */ | |
9185159d | 265 | if (new_assoc) { |
05c914fe | 266 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
9185159d TW |
267 | ret = iwl_rxon_add_station(priv, |
268 | priv->active_rxon.bssid_addr, 1); | |
269 | if (ret == IWL_INVALID_STATION) { | |
270 | IWL_ERROR("Error adding AP address for TX.\n"); | |
271 | return -EIO; | |
272 | } | |
273 | priv->assoc_station_added = 1; | |
274 | if (priv->default_wep_key && | |
275 | iwl_send_static_wepkey_cmd(priv, 0)) | |
276 | IWL_ERROR("Could not send WEP static key.\n"); | |
b481de9c | 277 | } |
43d59b32 EG |
278 | |
279 | /* Apply the new configuration | |
280 | * RXON assoc doesn't clear the station table in uCode, | |
281 | */ | |
282 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
283 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); | |
284 | if (ret) { | |
285 | IWL_ERROR("Error setting new RXON (%d)\n", ret); | |
286 | return ret; | |
287 | } | |
288 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c ZY |
289 | } |
290 | ||
36da7d70 ZY |
291 | iwl_init_sensitivity(priv); |
292 | ||
293 | /* If we issue a new RXON command which required a tune then we must | |
294 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
295 | ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); | |
296 | if (ret) { | |
297 | IWL_ERROR("Error sending TX power (%d)\n", ret); | |
298 | return ret; | |
299 | } | |
300 | ||
b481de9c ZY |
301 | return 0; |
302 | } | |
303 | ||
5b9f8cd3 | 304 | void iwl_update_chain_flags(struct iwl_priv *priv) |
5da4b55f MA |
305 | { |
306 | ||
c7de35cd | 307 | iwl_set_rxon_chain(priv); |
5b9f8cd3 | 308 | iwl_commit_rxon(priv); |
5da4b55f MA |
309 | } |
310 | ||
5b9f8cd3 | 311 | static int iwl_send_bt_config(struct iwl_priv *priv) |
b481de9c | 312 | { |
2aa6ab86 | 313 | struct iwl_bt_cmd bt_cmd = { |
b481de9c ZY |
314 | .flags = 3, |
315 | .lead_time = 0xAA, | |
316 | .max_kill = 1, | |
317 | .kill_ack_mask = 0, | |
318 | .kill_cts_mask = 0, | |
319 | }; | |
320 | ||
857485c0 | 321 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
2aa6ab86 | 322 | sizeof(struct iwl_bt_cmd), &bt_cmd); |
b481de9c ZY |
323 | } |
324 | ||
fcab423d | 325 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
326 | { |
327 | struct list_head *element; | |
328 | ||
329 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
330 | priv->frames_count); | |
331 | ||
332 | while (!list_empty(&priv->free_frames)) { | |
333 | element = priv->free_frames.next; | |
334 | list_del(element); | |
fcab423d | 335 | kfree(list_entry(element, struct iwl_frame, list)); |
b481de9c ZY |
336 | priv->frames_count--; |
337 | } | |
338 | ||
339 | if (priv->frames_count) { | |
340 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
341 | priv->frames_count); | |
342 | priv->frames_count = 0; | |
343 | } | |
344 | } | |
345 | ||
fcab423d | 346 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
b481de9c | 347 | { |
fcab423d | 348 | struct iwl_frame *frame; |
b481de9c ZY |
349 | struct list_head *element; |
350 | if (list_empty(&priv->free_frames)) { | |
351 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
352 | if (!frame) { | |
353 | IWL_ERROR("Could not allocate frame!\n"); | |
354 | return NULL; | |
355 | } | |
356 | ||
357 | priv->frames_count++; | |
358 | return frame; | |
359 | } | |
360 | ||
361 | element = priv->free_frames.next; | |
362 | list_del(element); | |
fcab423d | 363 | return list_entry(element, struct iwl_frame, list); |
b481de9c ZY |
364 | } |
365 | ||
fcab423d | 366 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
b481de9c ZY |
367 | { |
368 | memset(frame, 0, sizeof(*frame)); | |
369 | list_add(&frame->list, &priv->free_frames); | |
370 | } | |
371 | ||
4bf64efd TW |
372 | static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv, |
373 | struct ieee80211_hdr *hdr, | |
73ec1cc2 | 374 | int left) |
b481de9c | 375 | { |
3109ece1 | 376 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
377 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
378 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
379 | return 0; |
380 | ||
381 | if (priv->ibss_beacon->len > left) | |
382 | return 0; | |
383 | ||
384 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
385 | ||
386 | return priv->ibss_beacon->len; | |
387 | } | |
388 | ||
5b9f8cd3 | 389 | static u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv) |
b481de9c | 390 | { |
39e88504 GC |
391 | int i; |
392 | int rate_mask; | |
393 | ||
394 | /* Set rate mask*/ | |
395 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
dbce56a4 | 396 | rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK; |
39e88504 | 397 | else |
dbce56a4 | 398 | rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK; |
b481de9c | 399 | |
39e88504 | 400 | /* Find lowest valid rate */ |
b481de9c | 401 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; |
1826dcc0 | 402 | i = iwl_rates[i].next_ieee) { |
b481de9c | 403 | if (rate_mask & (1 << i)) |
1826dcc0 | 404 | return iwl_rates[i].plcp; |
b481de9c ZY |
405 | } |
406 | ||
39e88504 GC |
407 | /* No valid rate was found. Assign the lowest one */ |
408 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
409 | return IWL_RATE_1M_PLCP; | |
410 | else | |
411 | return IWL_RATE_6M_PLCP; | |
b481de9c ZY |
412 | } |
413 | ||
5b9f8cd3 | 414 | static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, |
4bf64efd TW |
415 | struct iwl_frame *frame, u8 rate) |
416 | { | |
417 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; | |
418 | unsigned int frame_size; | |
419 | ||
420 | tx_beacon_cmd = &frame->u.beacon; | |
421 | memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); | |
422 | ||
423 | tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; | |
424 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
425 | ||
426 | frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame, | |
4bf64efd TW |
427 | sizeof(frame->u) - sizeof(*tx_beacon_cmd)); |
428 | ||
429 | BUG_ON(frame_size > MAX_MPDU_SIZE); | |
430 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); | |
431 | ||
432 | if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP)) | |
433 | tx_beacon_cmd->tx.rate_n_flags = | |
434 | iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK); | |
435 | else | |
436 | tx_beacon_cmd->tx.rate_n_flags = | |
437 | iwl_hw_set_rate_n_flags(rate, 0); | |
438 | ||
439 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | | |
440 | TX_CMD_FLG_TSF_MSK | | |
441 | TX_CMD_FLG_STA_RATE_MSK; | |
442 | ||
443 | return sizeof(*tx_beacon_cmd) + frame_size; | |
444 | } | |
5b9f8cd3 | 445 | static int iwl_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 446 | { |
fcab423d | 447 | struct iwl_frame *frame; |
b481de9c ZY |
448 | unsigned int frame_size; |
449 | int rc; | |
450 | u8 rate; | |
451 | ||
fcab423d | 452 | frame = iwl_get_free_frame(priv); |
b481de9c ZY |
453 | |
454 | if (!frame) { | |
455 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
456 | "command.\n"); | |
457 | return -ENOMEM; | |
458 | } | |
459 | ||
5b9f8cd3 | 460 | rate = iwl_rate_get_lowest_plcp(priv); |
b481de9c | 461 | |
5b9f8cd3 | 462 | frame_size = iwl_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 463 | |
857485c0 | 464 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
465 | &frame->u.cmd[0]); |
466 | ||
fcab423d | 467 | iwl_free_frame(priv, frame); |
b481de9c ZY |
468 | |
469 | return rc; | |
470 | } | |
471 | ||
b481de9c ZY |
472 | /****************************************************************************** |
473 | * | |
474 | * Misc. internal state and helper functions | |
475 | * | |
476 | ******************************************************************************/ | |
b481de9c | 477 | |
5b9f8cd3 | 478 | static void iwl_ht_conf(struct iwl_priv *priv, |
d1141dfb EG |
479 | struct ieee80211_bss_conf *bss_conf) |
480 | { | |
ae5eb026 | 481 | struct ieee80211_sta_ht_cap *ht_conf; |
d1141dfb | 482 | struct iwl_ht_info *iwl_conf = &priv->current_ht_config; |
ae5eb026 | 483 | struct ieee80211_sta *sta; |
d1141dfb EG |
484 | |
485 | IWL_DEBUG_MAC80211("enter: \n"); | |
486 | ||
d1141dfb EG |
487 | if (!iwl_conf->is_ht) |
488 | return; | |
489 | ||
ae5eb026 JB |
490 | |
491 | /* | |
492 | * It is totally wrong to base global information on something | |
493 | * that is valid only when associated, alas, this driver works | |
494 | * that way and I don't know how to fix it. | |
495 | */ | |
496 | ||
497 | rcu_read_lock(); | |
498 | sta = ieee80211_find_sta(priv->hw, priv->bssid); | |
499 | if (!sta) { | |
500 | rcu_read_unlock(); | |
501 | return; | |
502 | } | |
503 | ht_conf = &sta->ht_cap; | |
504 | ||
d1141dfb | 505 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) |
a9841013 | 506 | iwl_conf->sgf |= HT_SHORT_GI_20MHZ; |
d1141dfb | 507 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) |
a9841013 | 508 | iwl_conf->sgf |= HT_SHORT_GI_40MHZ; |
d1141dfb EG |
509 | |
510 | iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); | |
511 | iwl_conf->max_amsdu_size = | |
512 | !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); | |
513 | ||
514 | iwl_conf->supported_chan_width = | |
d9fe60de | 515 | !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40); |
ae5eb026 | 516 | |
094d05dc S |
517 | /* |
518 | * XXX: The HT configuration needs to be moved into iwl_mac_config() | |
519 | * to be done there correctly. | |
520 | */ | |
521 | ||
522 | iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
523 | if (priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40MINUS) | |
524 | iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
525 | else if(priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40PLUS) | |
526 | iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
527 | ||
d1141dfb | 528 | /* If no above or below channel supplied disable FAT channel */ |
d9fe60de | 529 | if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE && |
094d05dc | 530 | iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
d1141dfb EG |
531 | iwl_conf->supported_chan_width = 0; |
532 | ||
12837be1 RR |
533 | iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2); |
534 | ||
d9fe60de | 535 | memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16); |
d1141dfb | 536 | |
094d05dc | 537 | iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0; |
d1141dfb | 538 | iwl_conf->ht_protection = |
ae5eb026 | 539 | bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; |
d1141dfb | 540 | iwl_conf->non_GF_STA_present = |
ae5eb026 JB |
541 | !!(bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); |
542 | ||
543 | rcu_read_unlock(); | |
d1141dfb | 544 | |
d1141dfb EG |
545 | IWL_DEBUG_MAC80211("leave\n"); |
546 | } | |
547 | ||
b481de9c ZY |
548 | /* |
549 | * QoS support | |
550 | */ | |
1ff50bda | 551 | static void iwl_activate_qos(struct iwl_priv *priv, u8 force) |
b481de9c | 552 | { |
b481de9c ZY |
553 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
554 | return; | |
555 | ||
b481de9c ZY |
556 | priv->qos_data.def_qos_parm.qos_flags = 0; |
557 | ||
558 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
559 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
560 | priv->qos_data.def_qos_parm.qos_flags |= | |
561 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
b481de9c ZY |
562 | if (priv->qos_data.qos_active) |
563 | priv->qos_data.def_qos_parm.qos_flags |= | |
564 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
565 | ||
fd105e79 | 566 | if (priv->current_ht_config.is_ht) |
f1f1f5c7 | 567 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
f1f1f5c7 | 568 | |
3109ece1 | 569 | if (force || iwl_is_associated(priv)) { |
f1f1f5c7 TW |
570 | IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
571 | priv->qos_data.qos_active, | |
572 | priv->qos_data.def_qos_parm.qos_flags); | |
b481de9c | 573 | |
1ff50bda EG |
574 | iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM, |
575 | sizeof(struct iwl_qosparam_cmd), | |
576 | &priv->qos_data.def_qos_parm, NULL); | |
b481de9c ZY |
577 | } |
578 | } | |
579 | ||
b481de9c | 580 | #define MAX_UCODE_BEACON_INTERVAL 4096 |
b481de9c | 581 | |
3195c1f3 | 582 | static u16 iwl_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
583 | { |
584 | u16 new_val = 0; | |
585 | u16 beacon_factor = 0; | |
586 | ||
3195c1f3 TW |
587 | beacon_factor = (beacon_val + MAX_UCODE_BEACON_INTERVAL) |
588 | / MAX_UCODE_BEACON_INTERVAL; | |
b481de9c ZY |
589 | new_val = beacon_val / beacon_factor; |
590 | ||
3195c1f3 | 591 | return new_val; |
b481de9c ZY |
592 | } |
593 | ||
3195c1f3 | 594 | static void iwl_setup_rxon_timing(struct iwl_priv *priv) |
b481de9c | 595 | { |
3195c1f3 TW |
596 | u64 tsf; |
597 | s32 interval_tm, rem; | |
b481de9c ZY |
598 | unsigned long flags; |
599 | struct ieee80211_conf *conf = NULL; | |
600 | u16 beacon_int = 0; | |
601 | ||
602 | conf = ieee80211_get_hw_conf(priv->hw); | |
603 | ||
604 | spin_lock_irqsave(&priv->lock, flags); | |
3195c1f3 | 605 | priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); |
b5d7be5e | 606 | priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval); |
b481de9c | 607 | |
05c914fe | 608 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
3195c1f3 | 609 | beacon_int = iwl_adjust_beacon_interval(priv->beacon_int); |
b481de9c ZY |
610 | priv->rxon_timing.atim_window = 0; |
611 | } else { | |
3195c1f3 TW |
612 | beacon_int = iwl_adjust_beacon_interval(conf->beacon_int); |
613 | ||
b481de9c ZY |
614 | /* TODO: we need to get atim_window from upper stack |
615 | * for now we set to 0 */ | |
616 | priv->rxon_timing.atim_window = 0; | |
617 | } | |
618 | ||
3195c1f3 | 619 | priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int); |
b481de9c | 620 | |
3195c1f3 TW |
621 | tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ |
622 | interval_tm = beacon_int * 1024; | |
623 | rem = do_div(tsf, interval_tm); | |
624 | priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem); | |
625 | ||
626 | spin_unlock_irqrestore(&priv->lock, flags); | |
627 | IWL_DEBUG_ASSOC("beacon interval %d beacon timer %d beacon tim %d\n", | |
628 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
629 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
630 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
b481de9c ZY |
631 | } |
632 | ||
82a66bbb TW |
633 | static void iwl_set_flags_for_band(struct iwl_priv *priv, |
634 | enum ieee80211_band band) | |
b481de9c | 635 | { |
8318d78a | 636 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
637 | priv->staging_rxon.flags &= |
638 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
639 | | RXON_FLG_CCK_MSK); | |
640 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
641 | } else { | |
5b9f8cd3 | 642 | /* Copied from iwl_post_associate() */ |
b481de9c ZY |
643 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
644 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
645 | else | |
646 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
647 | ||
05c914fe | 648 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
649 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
650 | ||
651 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
652 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
653 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
654 | } | |
655 | } | |
656 | ||
657 | /* | |
01ebd063 | 658 | * initialize rxon structure with default values from eeprom |
b481de9c | 659 | */ |
5b9f8cd3 | 660 | static void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) |
b481de9c | 661 | { |
bf85ea4f | 662 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
663 | |
664 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
665 | ||
60294de3 | 666 | switch (mode) { |
05c914fe | 667 | case NL80211_IFTYPE_AP: |
b481de9c ZY |
668 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; |
669 | break; | |
670 | ||
05c914fe | 671 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
672 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; |
673 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
674 | break; | |
675 | ||
05c914fe | 676 | case NL80211_IFTYPE_ADHOC: |
b481de9c ZY |
677 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; |
678 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
679 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
680 | RXON_FILTER_ACCEPT_GRP_MSK; | |
681 | break; | |
682 | ||
05c914fe | 683 | case NL80211_IFTYPE_MONITOR: |
b481de9c ZY |
684 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; |
685 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
686 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
687 | break; | |
69dc5d9d | 688 | default: |
60294de3 | 689 | IWL_ERROR("Unsupported interface type %d\n", mode); |
69dc5d9d | 690 | break; |
b481de9c ZY |
691 | } |
692 | ||
693 | #if 0 | |
694 | /* TODO: Figure out when short_preamble would be set and cache from | |
695 | * that */ | |
696 | if (!hw_to_local(priv->hw)->short_preamble) | |
697 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
698 | else | |
699 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
700 | #endif | |
701 | ||
8622e705 | 702 | ch_info = iwl_get_channel_info(priv, priv->band, |
25b3f57c | 703 | le16_to_cpu(priv->active_rxon.channel)); |
b481de9c ZY |
704 | |
705 | if (!ch_info) | |
706 | ch_info = &priv->channel_info[0]; | |
707 | ||
708 | /* | |
709 | * in some case A channels are all non IBSS | |
710 | * in this case force B/G channel | |
711 | */ | |
05c914fe | 712 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) && |
b481de9c ZY |
713 | !(is_channel_ibss(ch_info))) |
714 | ch_info = &priv->channel_info[0]; | |
715 | ||
716 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
8318d78a | 717 | priv->band = ch_info->band; |
b481de9c | 718 | |
82a66bbb | 719 | iwl_set_flags_for_band(priv, priv->band); |
b481de9c ZY |
720 | |
721 | priv->staging_rxon.ofdm_basic_rates = | |
722 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
723 | priv->staging_rxon.cck_basic_rates = | |
724 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
725 | ||
726 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
727 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
728 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
729 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); | |
730 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; | |
731 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; | |
c7de35cd | 732 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
733 | } |
734 | ||
5b9f8cd3 | 735 | static int iwl_set_mode(struct iwl_priv *priv, int mode) |
b481de9c | 736 | { |
5b9f8cd3 | 737 | iwl_connection_init_rx_config(priv, mode); |
b481de9c ZY |
738 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
739 | ||
37deb2a0 | 740 | iwl_clear_stations_table(priv); |
b481de9c | 741 | |
fde3571f | 742 | /* dont commit rxon if rf-kill is on*/ |
fee1247a | 743 | if (!iwl_is_ready_rf(priv)) |
fde3571f MA |
744 | return -EAGAIN; |
745 | ||
746 | cancel_delayed_work(&priv->scan_check); | |
2a421b91 | 747 | if (iwl_scan_cancel_timeout(priv, 100)) { |
fde3571f MA |
748 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); |
749 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
750 | return -EAGAIN; | |
751 | } | |
752 | ||
5b9f8cd3 | 753 | iwl_commit_rxon(priv); |
b481de9c ZY |
754 | |
755 | return 0; | |
756 | } | |
757 | ||
5b9f8cd3 | 758 | static void iwl_set_rate(struct iwl_priv *priv) |
b481de9c | 759 | { |
8318d78a | 760 | const struct ieee80211_supported_band *hw = NULL; |
b481de9c ZY |
761 | struct ieee80211_rate *rate; |
762 | int i; | |
763 | ||
d1141dfb | 764 | hw = iwl_get_hw_mode(priv, priv->band); |
c4ba9621 SA |
765 | if (!hw) { |
766 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); | |
767 | return; | |
768 | } | |
b481de9c ZY |
769 | |
770 | priv->active_rate = 0; | |
771 | priv->active_rate_basic = 0; | |
772 | ||
8318d78a JB |
773 | for (i = 0; i < hw->n_bitrates; i++) { |
774 | rate = &(hw->bitrates[i]); | |
775 | if (rate->hw_value < IWL_RATE_COUNT) | |
776 | priv->active_rate |= (1 << rate->hw_value); | |
b481de9c ZY |
777 | } |
778 | ||
779 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
780 | priv->active_rate, priv->active_rate_basic); | |
781 | ||
782 | /* | |
783 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
784 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
785 | * OFDM | |
786 | */ | |
787 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
788 | priv->staging_rxon.cck_basic_rates = | |
789 | ((priv->active_rate_basic & | |
790 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
791 | else | |
792 | priv->staging_rxon.cck_basic_rates = | |
793 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
794 | ||
795 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
796 | priv->staging_rxon.ofdm_basic_rates = | |
797 | ((priv->active_rate_basic & | |
798 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
799 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
800 | else | |
801 | priv->staging_rxon.ofdm_basic_rates = | |
802 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
803 | } | |
804 | ||
b481de9c | 805 | |
b481de9c ZY |
806 | /****************************************************************************** |
807 | * | |
808 | * Generic RX handler implementations | |
809 | * | |
810 | ******************************************************************************/ | |
885ba202 TW |
811 | static void iwl_rx_reply_alive(struct iwl_priv *priv, |
812 | struct iwl_rx_mem_buffer *rxb) | |
b481de9c | 813 | { |
db11d634 | 814 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
885ba202 | 815 | struct iwl_alive_resp *palive; |
b481de9c ZY |
816 | struct delayed_work *pwork; |
817 | ||
818 | palive = &pkt->u.alive_frame; | |
819 | ||
820 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
821 | "0x%01X 0x%01X\n", | |
822 | palive->is_valid, palive->ver_type, | |
823 | palive->ver_subtype); | |
824 | ||
825 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
826 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
827 | memcpy(&priv->card_alive_init, | |
828 | &pkt->u.alive_frame, | |
885ba202 | 829 | sizeof(struct iwl_init_alive_resp)); |
b481de9c ZY |
830 | pwork = &priv->init_alive_start; |
831 | } else { | |
832 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
833 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
885ba202 | 834 | sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
835 | pwork = &priv->alive_start; |
836 | } | |
837 | ||
838 | /* We delay the ALIVE response by 5ms to | |
839 | * give the HW RF Kill time to activate... */ | |
840 | if (palive->is_valid == UCODE_VALID_OK) | |
841 | queue_delayed_work(priv->workqueue, pwork, | |
842 | msecs_to_jiffies(5)); | |
843 | else | |
844 | IWL_WARNING("uCode did not respond OK.\n"); | |
845 | } | |
846 | ||
5b9f8cd3 | 847 | static void iwl_rx_reply_error(struct iwl_priv *priv, |
a55360e4 | 848 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 849 | { |
db11d634 | 850 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
851 | |
852 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
853 | "seq 0x%04X ser 0x%08X\n", | |
854 | le32_to_cpu(pkt->u.err_resp.error_type), | |
855 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
856 | pkt->u.err_resp.cmd_id, | |
857 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
858 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
859 | } | |
860 | ||
861 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
862 | ||
5b9f8cd3 | 863 | static void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
b481de9c | 864 | { |
db11d634 | 865 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
c1adf9fb | 866 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
2aa6ab86 | 867 | struct iwl_csa_notification *csa = &(pkt->u.csa_notif); |
b481de9c ZY |
868 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
869 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
870 | rxon->channel = csa->channel; | |
871 | priv->staging_rxon.channel = csa->channel; | |
872 | } | |
873 | ||
5b9f8cd3 | 874 | static void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, |
a55360e4 | 875 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 876 | { |
0a6857e7 | 877 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 878 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
2aa6ab86 | 879 | struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif); |
b481de9c ZY |
880 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
881 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
882 | #endif | |
883 | } | |
884 | ||
5b9f8cd3 | 885 | static void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
a55360e4 | 886 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 887 | { |
db11d634 | 888 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
889 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
890 | "notification for %s:\n", | |
891 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bf403db8 | 892 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
893 | } |
894 | ||
5b9f8cd3 | 895 | static void iwl_bg_beacon_update(struct work_struct *work) |
b481de9c | 896 | { |
c79dd5b5 TW |
897 | struct iwl_priv *priv = |
898 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
899 | struct sk_buff *beacon; |
900 | ||
901 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 902 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
903 | |
904 | if (!beacon) { | |
905 | IWL_ERROR("update beacon failed\n"); | |
906 | return; | |
907 | } | |
908 | ||
909 | mutex_lock(&priv->mutex); | |
910 | /* new beacon skb is allocated every time; dispose previous.*/ | |
911 | if (priv->ibss_beacon) | |
912 | dev_kfree_skb(priv->ibss_beacon); | |
913 | ||
914 | priv->ibss_beacon = beacon; | |
915 | mutex_unlock(&priv->mutex); | |
916 | ||
5b9f8cd3 | 917 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
918 | } |
919 | ||
4e39317d | 920 | /** |
5b9f8cd3 | 921 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
4e39317d EG |
922 | * |
923 | * This callback is provided in order to send a statistics request. | |
924 | * | |
925 | * This timer function is continually reset to execute within | |
926 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
927 | * was received. We need to ensure we receive the statistics in order | |
928 | * to update the temperature used for calibrating the TXPOWER. | |
929 | */ | |
5b9f8cd3 | 930 | static void iwl_bg_statistics_periodic(unsigned long data) |
4e39317d EG |
931 | { |
932 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
933 | ||
934 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
935 | return; | |
936 | ||
61780ee3 MA |
937 | /* dont send host command if rf-kill is on */ |
938 | if (!iwl_is_ready_rf(priv)) | |
939 | return; | |
940 | ||
4e39317d EG |
941 | iwl_send_statistics_request(priv, CMD_ASYNC); |
942 | } | |
943 | ||
5b9f8cd3 | 944 | static void iwl_rx_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 945 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 946 | { |
0a6857e7 | 947 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 948 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
2aa6ab86 TW |
949 | struct iwl4965_beacon_notif *beacon = |
950 | (struct iwl4965_beacon_notif *)pkt->u.raw; | |
e7d326ac | 951 | u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); |
b481de9c ZY |
952 | |
953 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
954 | "tsf %d %d rate %d\n", | |
25a6572c | 955 | le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, |
b481de9c ZY |
956 | beacon->beacon_notify_hdr.failure_frame, |
957 | le32_to_cpu(beacon->ibss_mgr_status), | |
958 | le32_to_cpu(beacon->high_tsf), | |
959 | le32_to_cpu(beacon->low_tsf), rate); | |
960 | #endif | |
961 | ||
05c914fe | 962 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
963 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
964 | queue_work(priv->workqueue, &priv->beacon_update); | |
965 | } | |
966 | ||
b481de9c ZY |
967 | /* Handle notification from uCode that card's power state is changing |
968 | * due to software, hardware, or critical temperature RFKILL */ | |
5b9f8cd3 | 969 | static void iwl_rx_card_state_notif(struct iwl_priv *priv, |
a55360e4 | 970 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 971 | { |
db11d634 | 972 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
973 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
974 | unsigned long status = priv->status; | |
975 | ||
976 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
977 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
978 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
979 | ||
980 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | | |
981 | RF_CARD_DISABLED)) { | |
982 | ||
3395f6e9 | 983 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
984 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
985 | ||
3395f6e9 TW |
986 | if (!iwl_grab_nic_access(priv)) { |
987 | iwl_write_direct32( | |
b481de9c ZY |
988 | priv, HBUS_TARG_MBX_C, |
989 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
990 | ||
3395f6e9 | 991 | iwl_release_nic_access(priv); |
b481de9c ZY |
992 | } |
993 | ||
994 | if (!(flags & RXON_CARD_DISABLED)) { | |
3395f6e9 | 995 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c | 996 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3395f6e9 TW |
997 | if (!iwl_grab_nic_access(priv)) { |
998 | iwl_write_direct32( | |
b481de9c ZY |
999 | priv, HBUS_TARG_MBX_C, |
1000 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1001 | ||
3395f6e9 | 1002 | iwl_release_nic_access(priv); |
b481de9c ZY |
1003 | } |
1004 | } | |
1005 | ||
1006 | if (flags & RF_CARD_DISABLED) { | |
3395f6e9 | 1007 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c | 1008 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
3395f6e9 TW |
1009 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1010 | if (!iwl_grab_nic_access(priv)) | |
1011 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1012 | } |
1013 | } | |
1014 | ||
1015 | if (flags & HW_CARD_DISABLED) | |
1016 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1017 | else | |
1018 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
1019 | ||
1020 | ||
1021 | if (flags & SW_CARD_DISABLED) | |
1022 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1023 | else | |
1024 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1025 | ||
1026 | if (!(flags & RXON_CARD_DISABLED)) | |
2a421b91 | 1027 | iwl_scan_cancel(priv); |
b481de9c ZY |
1028 | |
1029 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
1030 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
1031 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
1032 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
1033 | queue_work(priv->workqueue, &priv->rf_kill); | |
1034 | else | |
1035 | wake_up_interruptible(&priv->wait_command_queue); | |
1036 | } | |
1037 | ||
5b9f8cd3 | 1038 | int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) |
e2e3c57b TW |
1039 | { |
1040 | int ret; | |
1041 | unsigned long flags; | |
1042 | ||
1043 | spin_lock_irqsave(&priv->lock, flags); | |
1044 | ret = iwl_grab_nic_access(priv); | |
1045 | if (ret) | |
1046 | goto err; | |
1047 | ||
1048 | if (src == IWL_PWR_SRC_VAUX) { | |
1049 | u32 val; | |
e7b63581 | 1050 | ret = pci_read_config_dword(priv->pci_dev, PCI_CFG_POWER_SOURCE, |
e2e3c57b TW |
1051 | &val); |
1052 | ||
1053 | if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) | |
1054 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, | |
1055 | APMG_PS_CTRL_VAL_PWR_SRC_VAUX, | |
1056 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
1057 | } else { | |
1058 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, | |
1059 | APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, | |
1060 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
1061 | } | |
1062 | ||
1063 | iwl_release_nic_access(priv); | |
1064 | err: | |
1065 | spin_unlock_irqrestore(&priv->lock, flags); | |
1066 | return ret; | |
1067 | } | |
1068 | ||
b481de9c | 1069 | /** |
5b9f8cd3 | 1070 | * iwl_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
1071 | * |
1072 | * Setup the RX handlers for each of the reply types sent from the uCode | |
1073 | * to the host. | |
1074 | * | |
1075 | * This function chains into the hardware specific files for them to setup | |
1076 | * any hardware specific handlers as well. | |
1077 | */ | |
653fa4a0 | 1078 | static void iwl_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 1079 | { |
885ba202 | 1080 | priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; |
5b9f8cd3 EG |
1081 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
1082 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; | |
5b9f8cd3 | 1083 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
b481de9c | 1084 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
5b9f8cd3 EG |
1085 | iwl_rx_pm_debug_statistics_notif; |
1086 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif; | |
b481de9c | 1087 | |
9fbab516 BC |
1088 | /* |
1089 | * The same handler is used for both the REPLY to a discrete | |
1090 | * statistics request from the host as well as for the periodic | |
1091 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 1092 | */ |
8f91aecb EG |
1093 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics; |
1094 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics; | |
2a421b91 | 1095 | |
21c339bf | 1096 | iwl_setup_spectrum_handlers(priv); |
2a421b91 TW |
1097 | iwl_setup_rx_scan_handlers(priv); |
1098 | ||
37a44211 | 1099 | /* status change handler */ |
5b9f8cd3 | 1100 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif; |
b481de9c | 1101 | |
c1354754 TW |
1102 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = |
1103 | iwl_rx_missed_beacon_notif; | |
37a44211 | 1104 | /* Rx handlers */ |
1781a07f EG |
1105 | priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy; |
1106 | priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx; | |
653fa4a0 EG |
1107 | /* block ack */ |
1108 | priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba; | |
9fbab516 | 1109 | /* Set up hardware specific Rx handlers */ |
d4789efe | 1110 | priv->cfg->ops->lib->rx_handler_setup(priv); |
b481de9c ZY |
1111 | } |
1112 | ||
5c0eef96 MA |
1113 | /* |
1114 | * this should be called while priv->lock is locked | |
1115 | */ | |
a55360e4 | 1116 | static void __iwl_rx_replenish(struct iwl_priv *priv) |
b481de9c | 1117 | { |
a55360e4 TW |
1118 | iwl_rx_allocate(priv); |
1119 | iwl_rx_queue_restock(priv); | |
b481de9c ZY |
1120 | } |
1121 | ||
b481de9c ZY |
1122 | |
1123 | /** | |
a55360e4 | 1124 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
1125 | * |
1126 | * Uses the priv->rx_handlers callback function array to invoke | |
1127 | * the appropriate handlers, including command responses, | |
1128 | * frame-received notifications, and other notifications. | |
1129 | */ | |
a55360e4 | 1130 | void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 1131 | { |
a55360e4 | 1132 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 1133 | struct iwl_rx_packet *pkt; |
a55360e4 | 1134 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
1135 | u32 r, i; |
1136 | int reclaim; | |
1137 | unsigned long flags; | |
5c0eef96 | 1138 | u8 fill_rx = 0; |
d68ab680 | 1139 | u32 count = 8; |
b481de9c | 1140 | |
6440adb5 BC |
1141 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
1142 | * buffer that the driver may process (last buffer filled by ucode). */ | |
8d86422a | 1143 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
b481de9c ZY |
1144 | i = rxq->read; |
1145 | ||
1146 | /* Rx interrupt, but nothing sent from uCode */ | |
1147 | if (i == r) | |
f3d67999 | 1148 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i); |
b481de9c | 1149 | |
a55360e4 | 1150 | if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
5c0eef96 MA |
1151 | fill_rx = 1; |
1152 | ||
b481de9c ZY |
1153 | while (i != r) { |
1154 | rxb = rxq->queue[i]; | |
1155 | ||
9fbab516 | 1156 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
1157 | * then a bug has been introduced in the queue refilling |
1158 | * routines -- catch it here */ | |
1159 | BUG_ON(rxb == NULL); | |
1160 | ||
1161 | rxq->queue[i] = NULL; | |
1162 | ||
e91af0af JB |
1163 | dma_sync_single_range_for_cpu( |
1164 | &priv->pci_dev->dev, rxb->real_dma_addr, | |
1165 | rxb->aligned_dma_addr - rxb->real_dma_addr, | |
1166 | priv->hw_params.rx_buf_size, | |
1167 | PCI_DMA_FROMDEVICE); | |
db11d634 | 1168 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1169 | |
1170 | /* Reclaim a command buffer only if this packet is a response | |
1171 | * to a (driver-originated) command. | |
1172 | * If the packet (e.g. Rx frame) originated from uCode, | |
1173 | * there is no command buffer to reclaim. | |
1174 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1175 | * but apparently a few don't get set; catch them here. */ | |
1176 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
1177 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 1178 | (pkt->hdr.cmd != REPLY_RX) && |
7dddaf1a | 1179 | (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && |
cfe01709 | 1180 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
1181 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
1182 | (pkt->hdr.cmd != REPLY_TX); | |
1183 | ||
1184 | /* Based on type of command response or notification, | |
1185 | * handle those that need handling via function in | |
5b9f8cd3 | 1186 | * rx_handlers table. See iwl_setup_rx_handlers() */ |
b481de9c | 1187 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
f3d67999 EK |
1188 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r, |
1189 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
b481de9c ZY |
1190 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
1191 | } else { | |
1192 | /* No handling needed */ | |
f3d67999 | 1193 | IWL_DEBUG(IWL_DL_RX, |
b481de9c ZY |
1194 | "r %d i %d No handler needed for %s, 0x%02x\n", |
1195 | r, i, get_cmd_string(pkt->hdr.cmd), | |
1196 | pkt->hdr.cmd); | |
1197 | } | |
1198 | ||
1199 | if (reclaim) { | |
9fbab516 | 1200 | /* Invoke any callbacks, transfer the skb to caller, and |
857485c0 | 1201 | * fire off the (possibly) blocking iwl_send_cmd() |
b481de9c ZY |
1202 | * as we reclaim the driver command queue */ |
1203 | if (rxb && rxb->skb) | |
17b88929 | 1204 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
1205 | else |
1206 | IWL_WARNING("Claim null rxb?\n"); | |
1207 | } | |
1208 | ||
1209 | /* For now we just don't re-use anything. We can tweak this | |
1210 | * later to try and re-use notification packets and SKBs that | |
1211 | * fail to Rx correctly */ | |
1212 | if (rxb->skb != NULL) { | |
1213 | priv->alloc_rxb_skb--; | |
1214 | dev_kfree_skb_any(rxb->skb); | |
1215 | rxb->skb = NULL; | |
1216 | } | |
1217 | ||
4018517a JB |
1218 | pci_unmap_single(priv->pci_dev, rxb->real_dma_addr, |
1219 | priv->hw_params.rx_buf_size + 256, | |
9ee1ba47 | 1220 | PCI_DMA_FROMDEVICE); |
b481de9c ZY |
1221 | spin_lock_irqsave(&rxq->lock, flags); |
1222 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
1223 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1224 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
1225 | /* If there are a lot of unused frames, |
1226 | * restock the Rx queue so ucode wont assert. */ | |
1227 | if (fill_rx) { | |
1228 | count++; | |
1229 | if (count >= 8) { | |
1230 | priv->rxq.read = i; | |
a55360e4 | 1231 | __iwl_rx_replenish(priv); |
5c0eef96 MA |
1232 | count = 0; |
1233 | } | |
1234 | } | |
b481de9c ZY |
1235 | } |
1236 | ||
1237 | /* Backtrack one entry */ | |
1238 | priv->rxq.read = i; | |
a55360e4 TW |
1239 | iwl_rx_queue_restock(priv); |
1240 | } | |
a55360e4 | 1241 | |
0a6857e7 | 1242 | #ifdef CONFIG_IWLWIFI_DEBUG |
5b9f8cd3 | 1243 | static void iwl_print_rx_config_cmd(struct iwl_priv *priv) |
b481de9c | 1244 | { |
c1adf9fb | 1245 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
0795af57 | 1246 | |
b481de9c | 1247 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bf403db8 | 1248 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
1249 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
1250 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
1251 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
1252 | le32_to_cpu(rxon->filter_flags)); | |
1253 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
1254 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
1255 | rxon->ofdm_basic_rates); | |
1256 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
e174961c JB |
1257 | IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr); |
1258 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
b481de9c ZY |
1259 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
1260 | } | |
1261 | #endif | |
1262 | ||
0359facc MA |
1263 | /* call this function to flush any scheduled tasklet */ |
1264 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) | |
1265 | { | |
a96a27f9 | 1266 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
1267 | synchronize_irq(priv->pci_dev->irq); |
1268 | tasklet_kill(&priv->irq_tasklet); | |
1269 | } | |
1270 | ||
b481de9c | 1271 | /** |
5b9f8cd3 | 1272 | * iwl_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 1273 | */ |
5b9f8cd3 | 1274 | static void iwl_irq_handle_error(struct iwl_priv *priv) |
b481de9c | 1275 | { |
5b9f8cd3 | 1276 | /* Set the FW error flag -- cleared on iwl_down */ |
b481de9c ZY |
1277 | set_bit(STATUS_FW_ERROR, &priv->status); |
1278 | ||
1279 | /* Cancel currently queued command. */ | |
1280 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
1281 | ||
0a6857e7 | 1282 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1283 | if (priv->debug_level & IWL_DL_FW_ERRORS) { |
ede0cba4 | 1284 | iwl_dump_nic_error_log(priv); |
189a2b59 | 1285 | iwl_dump_nic_event_log(priv); |
5b9f8cd3 | 1286 | iwl_print_rx_config_cmd(priv); |
b481de9c ZY |
1287 | } |
1288 | #endif | |
1289 | ||
1290 | wake_up_interruptible(&priv->wait_command_queue); | |
1291 | ||
1292 | /* Keep the restart process from trying to send host | |
1293 | * commands by clearing the INIT status bit */ | |
1294 | clear_bit(STATUS_READY, &priv->status); | |
1295 | ||
1296 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
f3d67999 | 1297 | IWL_DEBUG(IWL_DL_FW_ERRORS, |
b481de9c ZY |
1298 | "Restarting adapter due to uCode error.\n"); |
1299 | ||
3109ece1 | 1300 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
1301 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
1302 | sizeof(priv->recovery_rxon)); | |
1303 | priv->error_recovering = 1; | |
1304 | } | |
3a1081e8 EK |
1305 | if (priv->cfg->mod_params->restart_fw) |
1306 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
1307 | } |
1308 | } | |
1309 | ||
5b9f8cd3 | 1310 | static void iwl_error_recovery(struct iwl_priv *priv) |
b481de9c ZY |
1311 | { |
1312 | unsigned long flags; | |
1313 | ||
1314 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
1315 | sizeof(priv->staging_rxon)); | |
1316 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 1317 | iwl_commit_rxon(priv); |
b481de9c | 1318 | |
4f40e4d9 | 1319 | iwl_rxon_add_station(priv, priv->bssid, 1); |
b481de9c ZY |
1320 | |
1321 | spin_lock_irqsave(&priv->lock, flags); | |
1322 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
1323 | priv->error_recovering = 0; | |
1324 | spin_unlock_irqrestore(&priv->lock, flags); | |
1325 | } | |
1326 | ||
5b9f8cd3 | 1327 | static void iwl_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
1328 | { |
1329 | u32 inta, handled = 0; | |
1330 | u32 inta_fh; | |
1331 | unsigned long flags; | |
0a6857e7 | 1332 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
1333 | u32 inta_mask; |
1334 | #endif | |
1335 | ||
1336 | spin_lock_irqsave(&priv->lock, flags); | |
1337 | ||
1338 | /* Ack/clear/reset pending uCode interrupts. | |
1339 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1340 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
3395f6e9 TW |
1341 | inta = iwl_read32(priv, CSR_INT); |
1342 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
1343 | |
1344 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
1345 | * Any new interrupts that happen after this, either while we're | |
1346 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
3395f6e9 TW |
1347 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
1348 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 1349 | |
0a6857e7 | 1350 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1351 | if (priv->debug_level & IWL_DL_ISR) { |
9fbab516 | 1352 | /* just for debug */ |
3395f6e9 | 1353 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
b481de9c ZY |
1354 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
1355 | inta, inta_mask, inta_fh); | |
1356 | } | |
1357 | #endif | |
1358 | ||
1359 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
1360 | * atomic, make sure that inta covers all the interrupts that | |
1361 | * we've discovered, even if FH interrupt came in just after | |
1362 | * reading CSR_INT. */ | |
6f83eaa1 | 1363 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
b481de9c | 1364 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 1365 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
b481de9c ZY |
1366 | inta |= CSR_INT_BIT_FH_TX; |
1367 | ||
1368 | /* Now service all interrupt bits discovered above. */ | |
1369 | if (inta & CSR_INT_BIT_HW_ERR) { | |
1370 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
1371 | ||
1372 | /* Tell the device to stop sending interrupts */ | |
5b9f8cd3 | 1373 | iwl_disable_interrupts(priv); |
b481de9c | 1374 | |
5b9f8cd3 | 1375 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1376 | |
1377 | handled |= CSR_INT_BIT_HW_ERR; | |
1378 | ||
1379 | spin_unlock_irqrestore(&priv->lock, flags); | |
1380 | ||
1381 | return; | |
1382 | } | |
1383 | ||
0a6857e7 | 1384 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1385 | if (priv->debug_level & (IWL_DL_ISR)) { |
b481de9c | 1386 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
1387 | if (inta & CSR_INT_BIT_SCD) |
1388 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
1389 | "the frame/frames.\n"); | |
b481de9c ZY |
1390 | |
1391 | /* Alive notification via Rx interrupt will do the real work */ | |
1392 | if (inta & CSR_INT_BIT_ALIVE) | |
1393 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
1394 | } | |
1395 | #endif | |
1396 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 1397 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 1398 | |
9fbab516 | 1399 | /* HW RF KILL switch toggled */ |
b481de9c ZY |
1400 | if (inta & CSR_INT_BIT_RF_KILL) { |
1401 | int hw_rf_kill = 0; | |
3395f6e9 | 1402 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
1403 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
1404 | hw_rf_kill = 1; | |
1405 | ||
f3d67999 | 1406 | IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n", |
c3056065 | 1407 | hw_rf_kill ? "disable radio" : "enable radio"); |
b481de9c | 1408 | |
a9efa652 EG |
1409 | /* driver only loads ucode once setting the interface up. |
1410 | * the driver as well won't allow loading if RFKILL is set | |
1411 | * therefore no need to restart the driver from this handler | |
1412 | */ | |
edb34228 | 1413 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) { |
53e49093 | 1414 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
edb34228 MA |
1415 | if (priv->is_open && !iwl_is_rfkill(priv)) |
1416 | queue_work(priv->workqueue, &priv->up); | |
1417 | } | |
b481de9c ZY |
1418 | |
1419 | handled |= CSR_INT_BIT_RF_KILL; | |
1420 | } | |
1421 | ||
9fbab516 | 1422 | /* Chip got too hot and stopped itself */ |
b481de9c ZY |
1423 | if (inta & CSR_INT_BIT_CT_KILL) { |
1424 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
1425 | handled |= CSR_INT_BIT_CT_KILL; | |
1426 | } | |
1427 | ||
1428 | /* Error detected by uCode */ | |
1429 | if (inta & CSR_INT_BIT_SW_ERR) { | |
1430 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
1431 | inta); | |
5b9f8cd3 | 1432 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1433 | handled |= CSR_INT_BIT_SW_ERR; |
1434 | } | |
1435 | ||
1436 | /* uCode wakes up after power-down sleep */ | |
1437 | if (inta & CSR_INT_BIT_WAKEUP) { | |
1438 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
a55360e4 | 1439 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
babcebfa TW |
1440 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
1441 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
1442 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
1443 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
1444 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
1445 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
1446 | |
1447 | handled |= CSR_INT_BIT_WAKEUP; | |
1448 | } | |
1449 | ||
1450 | /* All uCode command responses, including Tx command responses, | |
1451 | * Rx "responses" (frame-received notification), and other | |
1452 | * notifications from uCode come through here*/ | |
1453 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
a55360e4 | 1454 | iwl_rx_handle(priv); |
b481de9c ZY |
1455 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
1456 | } | |
1457 | ||
1458 | if (inta & CSR_INT_BIT_FH_TX) { | |
1459 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
1460 | handled |= CSR_INT_BIT_FH_TX; | |
dbb983b7 RR |
1461 | /* FH finished to write, send event */ |
1462 | priv->ucode_write_complete = 1; | |
1463 | wake_up_interruptible(&priv->wait_command_queue); | |
b481de9c ZY |
1464 | } |
1465 | ||
1466 | if (inta & ~handled) | |
1467 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
1468 | ||
1469 | if (inta & ~CSR_INI_SET_MASK) { | |
1470 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
1471 | inta & ~CSR_INI_SET_MASK); | |
1472 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
1473 | } | |
1474 | ||
1475 | /* Re-enable all interrupts */ | |
0359facc MA |
1476 | /* only Re-enable if diabled by irq */ |
1477 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
5b9f8cd3 | 1478 | iwl_enable_interrupts(priv); |
b481de9c | 1479 | |
0a6857e7 | 1480 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 1481 | if (priv->debug_level & (IWL_DL_ISR)) { |
3395f6e9 TW |
1482 | inta = iwl_read32(priv, CSR_INT); |
1483 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
1484 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
1485 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
1486 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
1487 | } | |
1488 | #endif | |
1489 | spin_unlock_irqrestore(&priv->lock, flags); | |
1490 | } | |
1491 | ||
5b9f8cd3 | 1492 | static irqreturn_t iwl_isr(int irq, void *data) |
b481de9c | 1493 | { |
c79dd5b5 | 1494 | struct iwl_priv *priv = data; |
b481de9c ZY |
1495 | u32 inta, inta_mask; |
1496 | u32 inta_fh; | |
1497 | if (!priv) | |
1498 | return IRQ_NONE; | |
1499 | ||
1500 | spin_lock(&priv->lock); | |
1501 | ||
1502 | /* Disable (but don't clear!) interrupts here to avoid | |
1503 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
1504 | * If we have something to service, the tasklet will re-enable ints. | |
1505 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
3395f6e9 TW |
1506 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
1507 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
1508 | |
1509 | /* Discover which interrupts are active/pending */ | |
3395f6e9 TW |
1510 | inta = iwl_read32(priv, CSR_INT); |
1511 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
1512 | |
1513 | /* Ignore interrupt if there's nothing in NIC to service. | |
1514 | * This may be due to IRQ shared with another device, | |
1515 | * or due to sporadic interrupts thrown from our NIC. */ | |
1516 | if (!inta && !inta_fh) { | |
1517 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
1518 | goto none; | |
1519 | } | |
1520 | ||
1521 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
66fbb541 ON |
1522 | /* Hardware disappeared. It might have already raised |
1523 | * an interrupt */ | |
99df630c | 1524 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%08x\n", inta); |
66fbb541 | 1525 | goto unplugged; |
b481de9c ZY |
1526 | } |
1527 | ||
1528 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
1529 | inta, inta_mask, inta_fh); | |
1530 | ||
25c03d8e JP |
1531 | inta &= ~CSR_INT_BIT_SCD; |
1532 | ||
5b9f8cd3 | 1533 | /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
1534 | if (likely(inta || inta_fh)) |
1535 | tasklet_schedule(&priv->irq_tasklet); | |
b481de9c | 1536 | |
66fbb541 ON |
1537 | unplugged: |
1538 | spin_unlock(&priv->lock); | |
b481de9c ZY |
1539 | return IRQ_HANDLED; |
1540 | ||
1541 | none: | |
1542 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
1543 | /* only Re-enable if diabled by irq */ |
1544 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
5b9f8cd3 | 1545 | iwl_enable_interrupts(priv); |
b481de9c ZY |
1546 | spin_unlock(&priv->lock); |
1547 | return IRQ_NONE; | |
1548 | } | |
1549 | ||
b481de9c ZY |
1550 | /****************************************************************************** |
1551 | * | |
1552 | * uCode download functions | |
1553 | * | |
1554 | ******************************************************************************/ | |
1555 | ||
5b9f8cd3 | 1556 | static void iwl_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 1557 | { |
98c92211 TW |
1558 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
1559 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
1560 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
1561 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
1562 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
1563 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
1564 | } |
1565 | ||
5b9f8cd3 | 1566 | static void iwl_nic_start(struct iwl_priv *priv) |
edcdf8b2 RR |
1567 | { |
1568 | /* Remove all resets to allow NIC to operate */ | |
1569 | iwl_write32(priv, CSR_RESET, 0); | |
1570 | } | |
1571 | ||
1572 | ||
b481de9c | 1573 | /** |
5b9f8cd3 | 1574 | * iwl_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
1575 | * |
1576 | * Copy into buffers for card to fetch via bus-mastering | |
1577 | */ | |
5b9f8cd3 | 1578 | static int iwl_read_ucode(struct iwl_priv *priv) |
b481de9c | 1579 | { |
14b3d338 | 1580 | struct iwl_ucode *ucode; |
a0987a8d | 1581 | int ret = -EINVAL, index; |
b481de9c | 1582 | const struct firmware *ucode_raw; |
a0987a8d RC |
1583 | const char *name_pre = priv->cfg->fw_name_pre; |
1584 | const unsigned int api_max = priv->cfg->ucode_api_max; | |
1585 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
1586 | char buf[25]; | |
b481de9c ZY |
1587 | u8 *src; |
1588 | size_t len; | |
a0987a8d | 1589 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
b481de9c ZY |
1590 | |
1591 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
1592 | * request_firmware() is synchronous, file is in memory on return. */ | |
a0987a8d RC |
1593 | for (index = api_max; index >= api_min; index--) { |
1594 | sprintf(buf, "%s%d%s", name_pre, index, ".ucode"); | |
1595 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); | |
1596 | if (ret < 0) { | |
1597 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
1598 | buf, ret); | |
1599 | if (ret == -ENOENT) | |
1600 | continue; | |
1601 | else | |
1602 | goto error; | |
1603 | } else { | |
1604 | if (index < api_max) | |
1605 | IWL_ERROR("Loaded firmware %s, which is deprecated. Please use API v%u instead.\n", | |
1606 | buf, api_max); | |
1607 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
1608 | buf, ucode_raw->size); | |
1609 | break; | |
1610 | } | |
b481de9c ZY |
1611 | } |
1612 | ||
a0987a8d RC |
1613 | if (ret < 0) |
1614 | goto error; | |
b481de9c ZY |
1615 | |
1616 | /* Make sure that we got at least our header! */ | |
1617 | if (ucode_raw->size < sizeof(*ucode)) { | |
1618 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 1619 | ret = -EINVAL; |
b481de9c ZY |
1620 | goto err_release; |
1621 | } | |
1622 | ||
1623 | /* Data from ucode file: header followed by uCode images */ | |
1624 | ucode = (void *)ucode_raw->data; | |
1625 | ||
c02b3acd | 1626 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
a0987a8d | 1627 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
b481de9c ZY |
1628 | inst_size = le32_to_cpu(ucode->inst_size); |
1629 | data_size = le32_to_cpu(ucode->data_size); | |
1630 | init_size = le32_to_cpu(ucode->init_size); | |
1631 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
1632 | boot_size = le32_to_cpu(ucode->boot_size); | |
1633 | ||
a0987a8d RC |
1634 | /* api_ver should match the api version forming part of the |
1635 | * firmware filename ... but we don't check for that and only rely | |
1636 | * on the API version read from firware header from here on forward */ | |
1637 | ||
1638 | if (api_ver < api_min || api_ver > api_max) { | |
1639 | IWL_ERROR("Driver unable to support your firmware API. " | |
1640 | "Driver supports v%u, firmware is v%u.\n", | |
1641 | api_max, api_ver); | |
1642 | priv->ucode_ver = 0; | |
1643 | ret = -EINVAL; | |
1644 | goto err_release; | |
1645 | } | |
1646 | if (api_ver != api_max) | |
1647 | IWL_ERROR("Firmware has old API version. Expected v%u, " | |
1648 | "got v%u. New firmware can be obtained " | |
1649 | "from http://www.intellinuxwireless.org.\n", | |
1650 | api_max, api_ver); | |
1651 | ||
1652 | printk(KERN_INFO DRV_NAME " loaded firmware version %u.%u.%u.%u\n", | |
c02b3acd CR |
1653 | IWL_UCODE_MAJOR(priv->ucode_ver), |
1654 | IWL_UCODE_MINOR(priv->ucode_ver), | |
1655 | IWL_UCODE_API(priv->ucode_ver), | |
1656 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
a0987a8d RC |
1657 | |
1658 | IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n", | |
1659 | priv->ucode_ver); | |
b481de9c ZY |
1660 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", |
1661 | inst_size); | |
1662 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", | |
1663 | data_size); | |
1664 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", | |
1665 | init_size); | |
1666 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", | |
1667 | init_data_size); | |
1668 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", | |
1669 | boot_size); | |
1670 | ||
1671 | /* Verify size of file vs. image size info in file's header */ | |
1672 | if (ucode_raw->size < sizeof(*ucode) + | |
1673 | inst_size + data_size + init_size + | |
1674 | init_data_size + boot_size) { | |
1675 | ||
1676 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
1677 | (int)ucode_raw->size); | |
90e759d1 | 1678 | ret = -EINVAL; |
b481de9c ZY |
1679 | goto err_release; |
1680 | } | |
1681 | ||
1682 | /* Verify that uCode images will fit in card's SRAM */ | |
099b40b7 | 1683 | if (inst_size > priv->hw_params.max_inst_size) { |
90e759d1 TW |
1684 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
1685 | inst_size); | |
1686 | ret = -EINVAL; | |
b481de9c ZY |
1687 | goto err_release; |
1688 | } | |
1689 | ||
099b40b7 | 1690 | if (data_size > priv->hw_params.max_data_size) { |
90e759d1 TW |
1691 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
1692 | data_size); | |
1693 | ret = -EINVAL; | |
b481de9c ZY |
1694 | goto err_release; |
1695 | } | |
099b40b7 | 1696 | if (init_size > priv->hw_params.max_inst_size) { |
b481de9c | 1697 | IWL_DEBUG_INFO |
90e759d1 TW |
1698 | ("uCode init instr len %d too large to fit in\n", |
1699 | init_size); | |
1700 | ret = -EINVAL; | |
b481de9c ZY |
1701 | goto err_release; |
1702 | } | |
099b40b7 | 1703 | if (init_data_size > priv->hw_params.max_data_size) { |
b481de9c | 1704 | IWL_DEBUG_INFO |
90e759d1 TW |
1705 | ("uCode init data len %d too large to fit in\n", |
1706 | init_data_size); | |
1707 | ret = -EINVAL; | |
b481de9c ZY |
1708 | goto err_release; |
1709 | } | |
099b40b7 | 1710 | if (boot_size > priv->hw_params.max_bsm_size) { |
b481de9c | 1711 | IWL_DEBUG_INFO |
90e759d1 TW |
1712 | ("uCode boot instr len %d too large to fit in\n", |
1713 | boot_size); | |
1714 | ret = -EINVAL; | |
b481de9c ZY |
1715 | goto err_release; |
1716 | } | |
1717 | ||
1718 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
1719 | ||
1720 | /* Runtime instructions and 2 copies of data: | |
1721 | * 1) unmodified from disk | |
1722 | * 2) backup cache for save/restore during power-downs */ | |
1723 | priv->ucode_code.len = inst_size; | |
98c92211 | 1724 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
1725 | |
1726 | priv->ucode_data.len = data_size; | |
98c92211 | 1727 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
1728 | |
1729 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 1730 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c ZY |
1731 | |
1732 | /* Initialization instructions and data */ | |
90e759d1 TW |
1733 | if (init_size && init_data_size) { |
1734 | priv->ucode_init.len = init_size; | |
98c92211 | 1735 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
1736 | |
1737 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 1738 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
1739 | |
1740 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
1741 | goto err_pci_alloc; | |
1742 | } | |
b481de9c ZY |
1743 | |
1744 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
1745 | if (boot_size) { |
1746 | priv->ucode_boot.len = boot_size; | |
98c92211 | 1747 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 1748 | |
90e759d1 TW |
1749 | if (!priv->ucode_boot.v_addr) |
1750 | goto err_pci_alloc; | |
1751 | } | |
b481de9c ZY |
1752 | |
1753 | /* Copy images into buffers for card's bus-master reads ... */ | |
1754 | ||
1755 | /* Runtime instructions (first block of data in file) */ | |
1756 | src = &ucode->data[0]; | |
1757 | len = priv->ucode_code.len; | |
90e759d1 | 1758 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
1759 | memcpy(priv->ucode_code.v_addr, src, len); |
1760 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
1761 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
1762 | ||
1763 | /* Runtime data (2nd block) | |
5b9f8cd3 | 1764 | * NOTE: Copy into backup buffer will be done in iwl_up() */ |
b481de9c ZY |
1765 | src = &ucode->data[inst_size]; |
1766 | len = priv->ucode_data.len; | |
90e759d1 | 1767 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
1768 | memcpy(priv->ucode_data.v_addr, src, len); |
1769 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
1770 | ||
1771 | /* Initialization instructions (3rd block) */ | |
1772 | if (init_size) { | |
1773 | src = &ucode->data[inst_size + data_size]; | |
1774 | len = priv->ucode_init.len; | |
90e759d1 TW |
1775 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
1776 | len); | |
b481de9c ZY |
1777 | memcpy(priv->ucode_init.v_addr, src, len); |
1778 | } | |
1779 | ||
1780 | /* Initialization data (4th block) */ | |
1781 | if (init_data_size) { | |
1782 | src = &ucode->data[inst_size + data_size + init_size]; | |
1783 | len = priv->ucode_init_data.len; | |
90e759d1 TW |
1784 | IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n", |
1785 | len); | |
b481de9c ZY |
1786 | memcpy(priv->ucode_init_data.v_addr, src, len); |
1787 | } | |
1788 | ||
1789 | /* Bootstrap instructions (5th block) */ | |
1790 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
1791 | len = priv->ucode_boot.len; | |
90e759d1 | 1792 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len); |
b481de9c ZY |
1793 | memcpy(priv->ucode_boot.v_addr, src, len); |
1794 | ||
1795 | /* We have our copies now, allow OS release its copies */ | |
1796 | release_firmware(ucode_raw); | |
1797 | return 0; | |
1798 | ||
1799 | err_pci_alloc: | |
1800 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 1801 | ret = -ENOMEM; |
5b9f8cd3 | 1802 | iwl_dealloc_ucode_pci(priv); |
b481de9c ZY |
1803 | |
1804 | err_release: | |
1805 | release_firmware(ucode_raw); | |
1806 | ||
1807 | error: | |
90e759d1 | 1808 | return ret; |
b481de9c ZY |
1809 | } |
1810 | ||
ada17513 MA |
1811 | /* temporary */ |
1812 | static int iwl_mac_beacon_update(struct ieee80211_hw *hw, | |
1813 | struct sk_buff *skb); | |
1814 | ||
b481de9c | 1815 | /** |
4a4a9e81 | 1816 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 1817 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 1818 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 1819 | */ |
4a4a9e81 | 1820 | static void iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 1821 | { |
57aab75a | 1822 | int ret = 0; |
b481de9c ZY |
1823 | |
1824 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
1825 | ||
1826 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
1827 | /* We had an error bringing up the hardware, so take it | |
1828 | * all the way back down so we can try again */ | |
1829 | IWL_DEBUG_INFO("Alive failed.\n"); | |
1830 | goto restart; | |
1831 | } | |
1832 | ||
1833 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
1834 | * This is a paranoid check, because we would not have gotten the | |
1835 | * "runtime" alive if code weren't properly loaded. */ | |
b0692f2f | 1836 | if (iwl_verify_ucode(priv)) { |
b481de9c ZY |
1837 | /* Runtime instruction load was bad; |
1838 | * take it all the way back down so we can try again */ | |
1839 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
1840 | goto restart; | |
1841 | } | |
1842 | ||
37deb2a0 | 1843 | iwl_clear_stations_table(priv); |
57aab75a TW |
1844 | ret = priv->cfg->ops->lib->alive_notify(priv); |
1845 | if (ret) { | |
b481de9c | 1846 | IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n", |
57aab75a | 1847 | ret); |
b481de9c ZY |
1848 | goto restart; |
1849 | } | |
1850 | ||
5b9f8cd3 | 1851 | /* After the ALIVE response, we can send host commands to the uCode */ |
b481de9c ZY |
1852 | set_bit(STATUS_ALIVE, &priv->status); |
1853 | ||
fee1247a | 1854 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
1855 | return; |
1856 | ||
36d6825b | 1857 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
1858 | |
1859 | priv->active_rate = priv->rates_mask; | |
1860 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
1861 | ||
3109ece1 | 1862 | if (iwl_is_associated(priv)) { |
c1adf9fb GG |
1863 | struct iwl_rxon_cmd *active_rxon = |
1864 | (struct iwl_rxon_cmd *)&priv->active_rxon; | |
b481de9c ZY |
1865 | |
1866 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
1867 | sizeof(priv->staging_rxon)); | |
1868 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1869 | } else { | |
1870 | /* Initialize our rx_config data */ | |
5b9f8cd3 | 1871 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
1872 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
1873 | } | |
1874 | ||
9fbab516 | 1875 | /* Configure Bluetooth device coexistence support */ |
5b9f8cd3 | 1876 | iwl_send_bt_config(priv); |
b481de9c | 1877 | |
4a4a9e81 TW |
1878 | iwl_reset_run_time_calib(priv); |
1879 | ||
b481de9c | 1880 | /* Configure the adapter for unassociated operation */ |
5b9f8cd3 | 1881 | iwl_commit_rxon(priv); |
b481de9c ZY |
1882 | |
1883 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 1884 | iwl_rf_kill_ct_config(priv); |
5a66926a | 1885 | |
fe00b5a5 RC |
1886 | iwl_leds_register(priv); |
1887 | ||
b481de9c | 1888 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 1889 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 1890 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
1891 | |
1892 | if (priv->error_recovering) | |
5b9f8cd3 | 1893 | iwl_error_recovery(priv); |
b481de9c | 1894 | |
58d0f361 | 1895 | iwl_power_update_mode(priv, 1); |
c46fbefa | 1896 | |
ada17513 MA |
1897 | /* reassociate for ADHOC mode */ |
1898 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
1899 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
1900 | priv->vif); | |
1901 | if (beacon) | |
1902 | iwl_mac_beacon_update(priv->hw, beacon); | |
1903 | } | |
1904 | ||
1905 | ||
c46fbefa | 1906 | if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) |
5b9f8cd3 | 1907 | iwl_set_mode(priv, priv->iw_mode); |
c46fbefa | 1908 | |
b481de9c ZY |
1909 | return; |
1910 | ||
1911 | restart: | |
1912 | queue_work(priv->workqueue, &priv->restart); | |
1913 | } | |
1914 | ||
4e39317d | 1915 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 1916 | |
5b9f8cd3 | 1917 | static void __iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
1918 | { |
1919 | unsigned long flags; | |
1920 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c ZY |
1921 | |
1922 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
1923 | ||
b481de9c ZY |
1924 | if (!exit_pending) |
1925 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
1926 | ||
ab53d8af MA |
1927 | iwl_leds_unregister(priv); |
1928 | ||
37deb2a0 | 1929 | iwl_clear_stations_table(priv); |
b481de9c ZY |
1930 | |
1931 | /* Unblock any waiting calls */ | |
1932 | wake_up_interruptible_all(&priv->wait_command_queue); | |
1933 | ||
b481de9c ZY |
1934 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
1935 | * exiting the module */ | |
1936 | if (!exit_pending) | |
1937 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
1938 | ||
1939 | /* stop and reset the on-board processor */ | |
3395f6e9 | 1940 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
1941 | |
1942 | /* tell the device to stop sending interrupts */ | |
0359facc | 1943 | spin_lock_irqsave(&priv->lock, flags); |
5b9f8cd3 | 1944 | iwl_disable_interrupts(priv); |
0359facc MA |
1945 | spin_unlock_irqrestore(&priv->lock, flags); |
1946 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
1947 | |
1948 | if (priv->mac80211_registered) | |
1949 | ieee80211_stop_queues(priv->hw); | |
1950 | ||
5b9f8cd3 | 1951 | /* If we have not previously called iwl_init() then |
b481de9c | 1952 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
fee1247a | 1953 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
1954 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
1955 | STATUS_RF_KILL_HW | | |
1956 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
1957 | STATUS_RF_KILL_SW | | |
9788864e RC |
1958 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
1959 | STATUS_GEO_CONFIGURED | | |
b481de9c | 1960 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
052ec3f1 MA |
1961 | STATUS_IN_SUSPEND | |
1962 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
1963 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
1964 | goto exit; |
1965 | } | |
1966 | ||
1967 | /* ...otherwise clear out all the status bits but the RF Kill and | |
1968 | * SUSPEND bits and continue taking the NIC down. */ | |
1969 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
1970 | STATUS_RF_KILL_HW | | |
1971 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
1972 | STATUS_RF_KILL_SW | | |
9788864e RC |
1973 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
1974 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
1975 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
1976 | STATUS_IN_SUSPEND | | |
1977 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
052ec3f1 MA |
1978 | STATUS_FW_ERROR | |
1979 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
1980 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
1981 | |
1982 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 1983 | iwl_clear_bit(priv, CSR_GP_CNTRL, |
9fbab516 | 1984 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
1985 | spin_unlock_irqrestore(&priv->lock, flags); |
1986 | ||
da1bc453 | 1987 | iwl_txq_ctx_stop(priv); |
b3bbacb7 | 1988 | iwl_rxq_stop(priv); |
b481de9c ZY |
1989 | |
1990 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
1991 | if (!iwl_grab_nic_access(priv)) { |
1992 | iwl_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 1993 | APMG_CLK_VAL_DMA_CLK_RQT); |
3395f6e9 | 1994 | iwl_release_nic_access(priv); |
b481de9c ZY |
1995 | } |
1996 | spin_unlock_irqrestore(&priv->lock, flags); | |
1997 | ||
1998 | udelay(5); | |
1999 | ||
7f066108 | 2000 | /* FIXME: apm_ops.suspend(priv) */ |
d535311e GG |
2001 | if (exit_pending || test_bit(STATUS_IN_SUSPEND, &priv->status)) |
2002 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
2003 | else | |
2004 | priv->cfg->ops->lib->apm_ops.reset(priv); | |
b481de9c | 2005 | exit: |
885ba202 | 2006 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
2007 | |
2008 | if (priv->ibss_beacon) | |
2009 | dev_kfree_skb(priv->ibss_beacon); | |
2010 | priv->ibss_beacon = NULL; | |
2011 | ||
2012 | /* clear out any free frames */ | |
fcab423d | 2013 | iwl_clear_free_frames(priv); |
b481de9c ZY |
2014 | } |
2015 | ||
5b9f8cd3 | 2016 | static void iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
2017 | { |
2018 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2019 | __iwl_down(priv); |
b481de9c | 2020 | mutex_unlock(&priv->mutex); |
b24d22b1 | 2021 | |
4e39317d | 2022 | iwl_cancel_deferred_work(priv); |
b481de9c ZY |
2023 | } |
2024 | ||
2025 | #define MAX_HW_RESTARTS 5 | |
2026 | ||
5b9f8cd3 | 2027 | static int __iwl_up(struct iwl_priv *priv) |
b481de9c | 2028 | { |
57aab75a TW |
2029 | int i; |
2030 | int ret; | |
b481de9c ZY |
2031 | |
2032 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
2033 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
2034 | return -EIO; | |
2035 | } | |
2036 | ||
e903fbd4 RC |
2037 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
2038 | IWL_ERROR("ucode not available for device bringup\n"); | |
2039 | return -EIO; | |
2040 | } | |
2041 | ||
e655b9f0 | 2042 | /* If platform's RF_KILL switch is NOT set to KILL */ |
c1842d61 | 2043 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
e655b9f0 | 2044 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
3bff19c2 | 2045 | else |
e655b9f0 | 2046 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
3bff19c2 | 2047 | |
c1842d61 | 2048 | if (iwl_is_rfkill(priv)) { |
5b9f8cd3 | 2049 | iwl_enable_interrupts(priv); |
3bff19c2 EG |
2050 | IWL_WARNING("Radio disabled by %s RF Kill switch\n", |
2051 | test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW"); | |
c1842d61 | 2052 | return 0; |
b481de9c ZY |
2053 | } |
2054 | ||
3395f6e9 | 2055 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 2056 | |
1053d35f | 2057 | ret = iwl_hw_nic_init(priv); |
57aab75a TW |
2058 | if (ret) { |
2059 | IWL_ERROR("Unable to init nic\n"); | |
2060 | return ret; | |
b481de9c ZY |
2061 | } |
2062 | ||
2063 | /* make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2064 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2065 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
2066 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
2067 | ||
2068 | /* clear (again), then enable host interrupts */ | |
3395f6e9 | 2069 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
5b9f8cd3 | 2070 | iwl_enable_interrupts(priv); |
b481de9c ZY |
2071 | |
2072 | /* really make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2073 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2074 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
2075 | |
2076 | /* Copy original ucode data image from disk into backup cache. | |
2077 | * This will be used to initialize the on-board processor's | |
2078 | * data SRAM for a clean start when the runtime program first loads. */ | |
2079 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 2080 | priv->ucode_data.len); |
b481de9c | 2081 | |
b481de9c ZY |
2082 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
2083 | ||
37deb2a0 | 2084 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2085 | |
2086 | /* load bootstrap state machine, | |
2087 | * load bootstrap program into processor's memory, | |
2088 | * prepare to load the "initialize" uCode */ | |
57aab75a | 2089 | ret = priv->cfg->ops->lib->load_ucode(priv); |
b481de9c | 2090 | |
57aab75a TW |
2091 | if (ret) { |
2092 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret); | |
b481de9c ZY |
2093 | continue; |
2094 | } | |
2095 | ||
f3d5b45b EG |
2096 | /* Clear out the uCode error bit if it is set */ |
2097 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
2098 | ||
b481de9c | 2099 | /* start card; "initialize" will load runtime ucode */ |
5b9f8cd3 | 2100 | iwl_nic_start(priv); |
b481de9c | 2101 | |
b481de9c ZY |
2102 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
2103 | ||
2104 | return 0; | |
2105 | } | |
2106 | ||
2107 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5b9f8cd3 | 2108 | __iwl_down(priv); |
64e72c3e | 2109 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
2110 | |
2111 | /* tried to restart and config the device for as long as our | |
2112 | * patience could withstand */ | |
2113 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
2114 | return -EIO; | |
2115 | } | |
2116 | ||
2117 | ||
2118 | /***************************************************************************** | |
2119 | * | |
2120 | * Workqueue callbacks | |
2121 | * | |
2122 | *****************************************************************************/ | |
2123 | ||
4a4a9e81 | 2124 | static void iwl_bg_init_alive_start(struct work_struct *data) |
b481de9c | 2125 | { |
c79dd5b5 TW |
2126 | struct iwl_priv *priv = |
2127 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
2128 | |
2129 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2130 | return; | |
2131 | ||
2132 | mutex_lock(&priv->mutex); | |
f3ccc08c | 2133 | priv->cfg->ops->lib->init_alive_start(priv); |
b481de9c ZY |
2134 | mutex_unlock(&priv->mutex); |
2135 | } | |
2136 | ||
4a4a9e81 | 2137 | static void iwl_bg_alive_start(struct work_struct *data) |
b481de9c | 2138 | { |
c79dd5b5 TW |
2139 | struct iwl_priv *priv = |
2140 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
2141 | |
2142 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2143 | return; | |
2144 | ||
2145 | mutex_lock(&priv->mutex); | |
4a4a9e81 | 2146 | iwl_alive_start(priv); |
b481de9c ZY |
2147 | mutex_unlock(&priv->mutex); |
2148 | } | |
2149 | ||
5b9f8cd3 | 2150 | static void iwl_bg_rf_kill(struct work_struct *work) |
b481de9c | 2151 | { |
c79dd5b5 | 2152 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); |
b481de9c ZY |
2153 | |
2154 | wake_up_interruptible(&priv->wait_command_queue); | |
2155 | ||
2156 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2157 | return; | |
2158 | ||
2159 | mutex_lock(&priv->mutex); | |
2160 | ||
fee1247a | 2161 | if (!iwl_is_rfkill(priv)) { |
f3d67999 | 2162 | IWL_DEBUG(IWL_DL_RF_KILL, |
b481de9c ZY |
2163 | "HW and/or SW RF Kill no longer active, restarting " |
2164 | "device\n"); | |
2165 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2166 | queue_work(priv->workqueue, &priv->restart); | |
2167 | } else { | |
ad97edd2 MA |
2168 | /* make sure mac80211 stop sending Tx frame */ |
2169 | if (priv->mac80211_registered) | |
2170 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
2171 | |
2172 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
2173 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
2174 | "disabled by SW switch\n"); | |
2175 | else | |
2176 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
2177 | "Kill switch must be turned off for " | |
2178 | "wireless networking to work.\n"); | |
2179 | } | |
2180 | mutex_unlock(&priv->mutex); | |
80fcc9e2 | 2181 | iwl_rfkill_set_hw_state(priv); |
b481de9c ZY |
2182 | } |
2183 | ||
16e727e8 EG |
2184 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
2185 | { | |
2186 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
2187 | run_time_calib_work); | |
2188 | ||
2189 | mutex_lock(&priv->mutex); | |
2190 | ||
2191 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
2192 | test_bit(STATUS_SCANNING, &priv->status)) { | |
2193 | mutex_unlock(&priv->mutex); | |
2194 | return; | |
2195 | } | |
2196 | ||
2197 | if (priv->start_calib) { | |
2198 | iwl_chain_noise_calibration(priv, &priv->statistics); | |
2199 | ||
2200 | iwl_sensitivity_calibration(priv, &priv->statistics); | |
2201 | } | |
2202 | ||
2203 | mutex_unlock(&priv->mutex); | |
2204 | return; | |
2205 | } | |
2206 | ||
5b9f8cd3 | 2207 | static void iwl_bg_up(struct work_struct *data) |
b481de9c | 2208 | { |
c79dd5b5 | 2209 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
2210 | |
2211 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2212 | return; | |
2213 | ||
2214 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2215 | __iwl_up(priv); |
b481de9c | 2216 | mutex_unlock(&priv->mutex); |
80fcc9e2 | 2217 | iwl_rfkill_set_hw_state(priv); |
b481de9c ZY |
2218 | } |
2219 | ||
5b9f8cd3 | 2220 | static void iwl_bg_restart(struct work_struct *data) |
b481de9c | 2221 | { |
c79dd5b5 | 2222 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
2223 | |
2224 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2225 | return; | |
2226 | ||
5b9f8cd3 | 2227 | iwl_down(priv); |
b481de9c ZY |
2228 | queue_work(priv->workqueue, &priv->up); |
2229 | } | |
2230 | ||
5b9f8cd3 | 2231 | static void iwl_bg_rx_replenish(struct work_struct *data) |
b481de9c | 2232 | { |
c79dd5b5 TW |
2233 | struct iwl_priv *priv = |
2234 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
2235 | |
2236 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2237 | return; | |
2238 | ||
2239 | mutex_lock(&priv->mutex); | |
a55360e4 | 2240 | iwl_rx_replenish(priv); |
b481de9c ZY |
2241 | mutex_unlock(&priv->mutex); |
2242 | } | |
2243 | ||
7878a5a4 MA |
2244 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
2245 | ||
5b9f8cd3 | 2246 | static void iwl_post_associate(struct iwl_priv *priv) |
b481de9c | 2247 | { |
b481de9c | 2248 | struct ieee80211_conf *conf = NULL; |
857485c0 | 2249 | int ret = 0; |
1ff50bda | 2250 | unsigned long flags; |
b481de9c | 2251 | |
05c914fe | 2252 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
3ac7f146 | 2253 | IWL_ERROR("%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
2254 | return; |
2255 | } | |
2256 | ||
e174961c JB |
2257 | IWL_DEBUG_ASSOC("Associated as %d to: %pM\n", |
2258 | priv->assoc_id, priv->active_rxon.bssid_addr); | |
b481de9c ZY |
2259 | |
2260 | ||
2261 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2262 | return; | |
2263 | ||
b481de9c | 2264 | |
508e32e1 | 2265 | if (!priv->vif || !priv->is_open) |
948c171c | 2266 | return; |
508e32e1 | 2267 | |
c90a74ba | 2268 | iwl_power_cancel_timeout(priv); |
2a421b91 | 2269 | iwl_scan_cancel_timeout(priv, 200); |
052c4b9f | 2270 | |
b481de9c ZY |
2271 | conf = ieee80211_get_hw_conf(priv->hw); |
2272 | ||
2273 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 2274 | iwl_commit_rxon(priv); |
b481de9c | 2275 | |
3195c1f3 | 2276 | iwl_setup_rxon_timing(priv); |
857485c0 | 2277 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2278 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2279 | if (ret) |
b481de9c ZY |
2280 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
2281 | "Attempting to continue.\n"); | |
2282 | ||
2283 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
2284 | ||
42eb7c64 | 2285 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
4f85f5b3 | 2286 | |
c7de35cd | 2287 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
2288 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
2289 | ||
2290 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
2291 | priv->assoc_id, priv->beacon_int); | |
2292 | ||
2293 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2294 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2295 | else | |
2296 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2297 | ||
2298 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2299 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2300 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2301 | else | |
2302 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2303 | ||
05c914fe | 2304 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2305 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
2306 | ||
2307 | } | |
2308 | ||
5b9f8cd3 | 2309 | iwl_commit_rxon(priv); |
b481de9c ZY |
2310 | |
2311 | switch (priv->iw_mode) { | |
05c914fe | 2312 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2313 | break; |
2314 | ||
05c914fe | 2315 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 2316 | |
c46fbefa AK |
2317 | /* assume default assoc id */ |
2318 | priv->assoc_id = 1; | |
b481de9c | 2319 | |
4f40e4d9 | 2320 | iwl_rxon_add_station(priv, priv->bssid, 0); |
5b9f8cd3 | 2321 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
2322 | |
2323 | break; | |
2324 | ||
2325 | default: | |
2326 | IWL_ERROR("%s Should not be called in %d mode\n", | |
3ac7f146 | 2327 | __func__, priv->iw_mode); |
b481de9c ZY |
2328 | break; |
2329 | } | |
2330 | ||
05c914fe | 2331 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2332 | priv->assoc_station_added = 1; |
2333 | ||
1ff50bda EG |
2334 | spin_lock_irqsave(&priv->lock, flags); |
2335 | iwl_activate_qos(priv, 0); | |
2336 | spin_unlock_irqrestore(&priv->lock, flags); | |
292ae174 | 2337 | |
04816448 GE |
2338 | /* the chain noise calibration will enabled PM upon completion |
2339 | * If chain noise has already been run, then we need to enable | |
2340 | * power management here */ | |
2341 | if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) | |
2342 | iwl_power_enable_management(priv); | |
c90a74ba EG |
2343 | |
2344 | /* Enable Rx differential gain and sensitivity calibrations */ | |
2345 | iwl_chain_noise_reset(priv); | |
2346 | priv->start_calib = 1; | |
2347 | ||
508e32e1 RC |
2348 | } |
2349 | ||
b481de9c ZY |
2350 | /***************************************************************************** |
2351 | * | |
2352 | * mac80211 entry point functions | |
2353 | * | |
2354 | *****************************************************************************/ | |
2355 | ||
154b25ce | 2356 | #define UCODE_READY_TIMEOUT (4 * HZ) |
5a66926a | 2357 | |
5b9f8cd3 | 2358 | static int iwl_mac_start(struct ieee80211_hw *hw) |
b481de9c | 2359 | { |
c79dd5b5 | 2360 | struct iwl_priv *priv = hw->priv; |
5a66926a | 2361 | int ret; |
cf88c433 | 2362 | u16 pci_cmd; |
b481de9c ZY |
2363 | |
2364 | IWL_DEBUG_MAC80211("enter\n"); | |
2365 | ||
5a66926a ZY |
2366 | if (pci_enable_device(priv->pci_dev)) { |
2367 | IWL_ERROR("Fail to pci_enable_device\n"); | |
2368 | return -ENODEV; | |
2369 | } | |
2370 | pci_restore_state(priv->pci_dev); | |
2371 | pci_enable_msi(priv->pci_dev); | |
2372 | ||
cf88c433 TW |
2373 | /* enable interrupts if needed: hw bug w/a */ |
2374 | pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); | |
2375 | if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { | |
2376 | pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; | |
2377 | pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd); | |
2378 | } | |
2379 | ||
5b9f8cd3 | 2380 | ret = request_irq(priv->pci_dev->irq, iwl_isr, IRQF_SHARED, |
5a66926a ZY |
2381 | DRV_NAME, priv); |
2382 | if (ret) { | |
2383 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
2384 | goto out_disable_msi; | |
2385 | } | |
2386 | ||
b481de9c ZY |
2387 | /* we should be verifying the device is ready to be opened */ |
2388 | mutex_lock(&priv->mutex); | |
2389 | ||
c1adf9fb | 2390 | memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); |
5a66926a ZY |
2391 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
2392 | * ucode filename and max sizes are card-specific. */ | |
b481de9c | 2393 | |
5a66926a | 2394 | if (!priv->ucode_code.len) { |
5b9f8cd3 | 2395 | ret = iwl_read_ucode(priv); |
5a66926a ZY |
2396 | if (ret) { |
2397 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
2398 | mutex_unlock(&priv->mutex); | |
2399 | goto out_release_irq; | |
2400 | } | |
2401 | } | |
b481de9c | 2402 | |
5b9f8cd3 | 2403 | ret = __iwl_up(priv); |
5a66926a | 2404 | |
b481de9c | 2405 | mutex_unlock(&priv->mutex); |
5a66926a | 2406 | |
80fcc9e2 AG |
2407 | iwl_rfkill_set_hw_state(priv); |
2408 | ||
e655b9f0 ZY |
2409 | if (ret) |
2410 | goto out_release_irq; | |
2411 | ||
c1842d61 TW |
2412 | if (iwl_is_rfkill(priv)) |
2413 | goto out; | |
2414 | ||
e655b9f0 ZY |
2415 | IWL_DEBUG_INFO("Start UP work done.\n"); |
2416 | ||
2417 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
2418 | return 0; | |
2419 | ||
fe9b6b72 | 2420 | /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from |
5a66926a | 2421 | * mac80211 will not be run successfully. */ |
154b25ce EG |
2422 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
2423 | test_bit(STATUS_READY, &priv->status), | |
2424 | UCODE_READY_TIMEOUT); | |
2425 | if (!ret) { | |
2426 | if (!test_bit(STATUS_READY, &priv->status)) { | |
2427 | IWL_ERROR("START_ALIVE timeout after %dms.\n", | |
2428 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
2429 | ret = -ETIMEDOUT; | |
2430 | goto out_release_irq; | |
5a66926a | 2431 | } |
fe9b6b72 | 2432 | } |
0a078ffa | 2433 | |
c1842d61 | 2434 | out: |
0a078ffa | 2435 | priv->is_open = 1; |
b481de9c ZY |
2436 | IWL_DEBUG_MAC80211("leave\n"); |
2437 | return 0; | |
5a66926a ZY |
2438 | |
2439 | out_release_irq: | |
2440 | free_irq(priv->pci_dev->irq, priv); | |
2441 | out_disable_msi: | |
2442 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
2443 | pci_disable_device(priv->pci_dev); |
2444 | priv->is_open = 0; | |
2445 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 2446 | return ret; |
b481de9c ZY |
2447 | } |
2448 | ||
5b9f8cd3 | 2449 | static void iwl_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 2450 | { |
c79dd5b5 | 2451 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2452 | |
2453 | IWL_DEBUG_MAC80211("enter\n"); | |
948c171c | 2454 | |
e655b9f0 ZY |
2455 | if (!priv->is_open) { |
2456 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
2457 | return; | |
2458 | } | |
2459 | ||
b481de9c | 2460 | priv->is_open = 0; |
5a66926a | 2461 | |
fee1247a | 2462 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
2463 | /* stop mac, cancel any scan request and clear |
2464 | * RXON_FILTER_ASSOC_MSK BIT | |
2465 | */ | |
5a66926a | 2466 | mutex_lock(&priv->mutex); |
2a421b91 | 2467 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 2468 | mutex_unlock(&priv->mutex); |
fde3571f MA |
2469 | } |
2470 | ||
5b9f8cd3 | 2471 | iwl_down(priv); |
5a66926a ZY |
2472 | |
2473 | flush_workqueue(priv->workqueue); | |
2474 | free_irq(priv->pci_dev->irq, priv); | |
2475 | pci_disable_msi(priv->pci_dev); | |
2476 | pci_save_state(priv->pci_dev); | |
2477 | pci_disable_device(priv->pci_dev); | |
948c171c | 2478 | |
b481de9c | 2479 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
2480 | } |
2481 | ||
5b9f8cd3 | 2482 | static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 2483 | { |
c79dd5b5 | 2484 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2485 | |
f3674227 | 2486 | IWL_DEBUG_MACDUMP("enter\n"); |
b481de9c | 2487 | |
b481de9c | 2488 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 2489 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 2490 | |
e039fa4a | 2491 | if (iwl_tx_skb(priv, skb)) |
b481de9c ZY |
2492 | dev_kfree_skb_any(skb); |
2493 | ||
f3674227 | 2494 | IWL_DEBUG_MACDUMP("leave\n"); |
b481de9c ZY |
2495 | return 0; |
2496 | } | |
2497 | ||
5b9f8cd3 | 2498 | static int iwl_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
2499 | struct ieee80211_if_init_conf *conf) |
2500 | { | |
c79dd5b5 | 2501 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2502 | unsigned long flags; |
2503 | ||
32bfd35d | 2504 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 2505 | |
32bfd35d JB |
2506 | if (priv->vif) { |
2507 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
75849d28 | 2508 | return -EOPNOTSUPP; |
b481de9c ZY |
2509 | } |
2510 | ||
2511 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 2512 | priv->vif = conf->vif; |
60294de3 | 2513 | priv->iw_mode = conf->type; |
b481de9c ZY |
2514 | |
2515 | spin_unlock_irqrestore(&priv->lock, flags); | |
2516 | ||
2517 | mutex_lock(&priv->mutex); | |
864792e3 TW |
2518 | |
2519 | if (conf->mac_addr) { | |
e174961c | 2520 | IWL_DEBUG_MAC80211("Set %pM\n", conf->mac_addr); |
864792e3 TW |
2521 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
2522 | } | |
b481de9c | 2523 | |
5b9f8cd3 | 2524 | if (iwl_set_mode(priv, conf->type) == -EAGAIN) |
c46fbefa AK |
2525 | /* we are not ready, will run again when ready */ |
2526 | set_bit(STATUS_MODE_PENDING, &priv->status); | |
5a66926a | 2527 | |
b481de9c ZY |
2528 | mutex_unlock(&priv->mutex); |
2529 | ||
5a66926a | 2530 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
2531 | return 0; |
2532 | } | |
2533 | ||
2534 | /** | |
5b9f8cd3 | 2535 | * iwl_mac_config - mac80211 config callback |
b481de9c ZY |
2536 | * |
2537 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
2538 | * be set inappropriately and the driver currently sets the hardware up to | |
2539 | * use it whenever needed. | |
2540 | */ | |
5b9f8cd3 | 2541 | static int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) |
b481de9c | 2542 | { |
c79dd5b5 | 2543 | struct iwl_priv *priv = hw->priv; |
bf85ea4f | 2544 | const struct iwl_channel_info *ch_info; |
e8975581 | 2545 | struct ieee80211_conf *conf = &hw->conf; |
b481de9c | 2546 | unsigned long flags; |
76bb77e0 | 2547 | int ret = 0; |
82a66bbb | 2548 | u16 channel; |
b481de9c ZY |
2549 | |
2550 | mutex_lock(&priv->mutex); | |
8318d78a | 2551 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 2552 | |
ae5eb026 JB |
2553 | priv->current_ht_config.is_ht = conf->ht.enabled; |
2554 | ||
14a08a7f | 2555 | if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) { |
64e72c3e | 2556 | IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n"); |
14a08a7f | 2557 | goto out; |
64e72c3e MA |
2558 | } |
2559 | ||
14a08a7f EG |
2560 | if (!conf->radio_enabled) |
2561 | iwl_radio_kill_sw_disable_radio(priv); | |
2562 | ||
fee1247a | 2563 | if (!iwl_is_ready(priv)) { |
b481de9c | 2564 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
2565 | ret = -EIO; |
2566 | goto out; | |
b481de9c ZY |
2567 | } |
2568 | ||
1ea87396 | 2569 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
b481de9c | 2570 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 | 2571 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
b481de9c | 2572 | mutex_unlock(&priv->mutex); |
a0646470 | 2573 | return 0; |
b481de9c ZY |
2574 | } |
2575 | ||
82a66bbb TW |
2576 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); |
2577 | ch_info = iwl_get_channel_info(priv, conf->channel->band, channel); | |
b481de9c | 2578 | if (!is_channel_valid(ch_info)) { |
b481de9c | 2579 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
76bb77e0 ZY |
2580 | ret = -EINVAL; |
2581 | goto out; | |
b481de9c ZY |
2582 | } |
2583 | ||
05c914fe | 2584 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
398f9e76 AK |
2585 | !is_channel_ibss(ch_info)) { |
2586 | IWL_ERROR("channel %d in band %d not IBSS channel\n", | |
2587 | conf->channel->hw_value, conf->channel->band); | |
2588 | ret = -EINVAL; | |
2589 | goto out; | |
2590 | } | |
2591 | ||
82a66bbb TW |
2592 | spin_lock_irqsave(&priv->lock, flags); |
2593 | ||
b5d7be5e | 2594 | |
78330fdd | 2595 | /* if we are switching from ht to 2.4 clear flags |
b481de9c ZY |
2596 | * from any ht related info since 2.4 does not |
2597 | * support ht */ | |
82a66bbb | 2598 | if ((le16_to_cpu(priv->staging_rxon.channel) != channel) |
b481de9c ZY |
2599 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH |
2600 | && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) | |
2601 | #endif | |
2602 | ) | |
2603 | priv->staging_rxon.flags = 0; | |
b481de9c | 2604 | |
17e72782 | 2605 | iwl_set_rxon_channel(priv, conf->channel); |
b481de9c | 2606 | |
82a66bbb | 2607 | iwl_set_flags_for_band(priv, conf->channel->band); |
b481de9c ZY |
2608 | |
2609 | /* The list of supported rates and rate mask can be different | |
8318d78a | 2610 | * for each band; since the band may have changed, reset |
b481de9c | 2611 | * the rate mask to what mac80211 lists */ |
5b9f8cd3 | 2612 | iwl_set_rate(priv); |
b481de9c ZY |
2613 | |
2614 | spin_unlock_irqrestore(&priv->lock, flags); | |
2615 | ||
2616 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
2617 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
5b9f8cd3 | 2618 | iwl_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 2619 | goto out; |
b481de9c ZY |
2620 | } |
2621 | #endif | |
2622 | ||
b481de9c ZY |
2623 | if (!conf->radio_enabled) { |
2624 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 2625 | goto out; |
b481de9c ZY |
2626 | } |
2627 | ||
fee1247a | 2628 | if (iwl_is_rfkill(priv)) { |
b481de9c | 2629 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
2630 | ret = -EIO; |
2631 | goto out; | |
b481de9c ZY |
2632 | } |
2633 | ||
e602cb18 EK |
2634 | if (conf->flags & IEEE80211_CONF_PS) |
2635 | ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3); | |
2636 | else | |
2637 | ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM); | |
2638 | if (ret) | |
2639 | IWL_DEBUG_MAC80211("Error setting power level\n"); | |
2640 | ||
630fe9b6 TW |
2641 | IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n", |
2642 | priv->tx_power_user_lmt, conf->power_level); | |
2643 | ||
2644 | iwl_set_tx_power(priv, conf->power_level, false); | |
2645 | ||
5b9f8cd3 | 2646 | iwl_set_rate(priv); |
b481de9c ZY |
2647 | |
2648 | if (memcmp(&priv->active_rxon, | |
2649 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
5b9f8cd3 | 2650 | iwl_commit_rxon(priv); |
b481de9c ZY |
2651 | else |
2652 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
2653 | ||
2654 | IWL_DEBUG_MAC80211("leave\n"); | |
2655 | ||
a0646470 | 2656 | out: |
5a66926a | 2657 | mutex_unlock(&priv->mutex); |
76bb77e0 | 2658 | return ret; |
b481de9c ZY |
2659 | } |
2660 | ||
5b9f8cd3 | 2661 | static void iwl_config_ap(struct iwl_priv *priv) |
b481de9c | 2662 | { |
857485c0 | 2663 | int ret = 0; |
1ff50bda | 2664 | unsigned long flags; |
b481de9c | 2665 | |
d986bcd1 | 2666 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
2667 | return; |
2668 | ||
2669 | /* The following should be done only at AP bring up */ | |
3195c1f3 | 2670 | if (!iwl_is_associated(priv)) { |
b481de9c ZY |
2671 | |
2672 | /* RXON - unassoc (to set timing command) */ | |
2673 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 2674 | iwl_commit_rxon(priv); |
b481de9c ZY |
2675 | |
2676 | /* RXON Timing */ | |
3195c1f3 | 2677 | iwl_setup_rxon_timing(priv); |
857485c0 | 2678 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2679 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2680 | if (ret) |
b481de9c ZY |
2681 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
2682 | "Attempting to continue.\n"); | |
2683 | ||
c7de35cd | 2684 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
2685 | |
2686 | /* FIXME: what should be the assoc_id for AP? */ | |
2687 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
2688 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2689 | priv->staging_rxon.flags |= | |
2690 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
2691 | else | |
2692 | priv->staging_rxon.flags &= | |
2693 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2694 | ||
2695 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2696 | if (priv->assoc_capability & | |
2697 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2698 | priv->staging_rxon.flags |= | |
2699 | RXON_FLG_SHORT_SLOT_MSK; | |
2700 | else | |
2701 | priv->staging_rxon.flags &= | |
2702 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2703 | ||
05c914fe | 2704 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2705 | priv->staging_rxon.flags &= |
2706 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2707 | } | |
2708 | /* restore RXON assoc */ | |
2709 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
5b9f8cd3 | 2710 | iwl_commit_rxon(priv); |
1ff50bda EG |
2711 | spin_lock_irqsave(&priv->lock, flags); |
2712 | iwl_activate_qos(priv, 1); | |
2713 | spin_unlock_irqrestore(&priv->lock, flags); | |
4f40e4d9 | 2714 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
e1493deb | 2715 | } |
5b9f8cd3 | 2716 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
2717 | |
2718 | /* FIXME - we need to add code here to detect a totally new | |
2719 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
2720 | * clear sta table, add BCAST sta... */ | |
2721 | } | |
2722 | ||
9d139c81 | 2723 | |
5b9f8cd3 | 2724 | static int iwl_mac_config_interface(struct ieee80211_hw *hw, |
32bfd35d | 2725 | struct ieee80211_vif *vif, |
b481de9c ZY |
2726 | struct ieee80211_if_conf *conf) |
2727 | { | |
c79dd5b5 | 2728 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2729 | int rc; |
2730 | ||
2731 | if (conf == NULL) | |
2732 | return -EIO; | |
2733 | ||
b716bb91 EG |
2734 | if (priv->vif != vif) { |
2735 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
2736 | return 0; |
2737 | } | |
2738 | ||
05c914fe | 2739 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
9d139c81 JB |
2740 | conf->changed & IEEE80211_IFCC_BEACON) { |
2741 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); | |
2742 | if (!beacon) | |
2743 | return -ENOMEM; | |
ada17513 | 2744 | mutex_lock(&priv->mutex); |
5b9f8cd3 | 2745 | rc = iwl_mac_beacon_update(hw, beacon); |
ada17513 | 2746 | mutex_unlock(&priv->mutex); |
9d139c81 JB |
2747 | if (rc) |
2748 | return rc; | |
2749 | } | |
2750 | ||
fee1247a | 2751 | if (!iwl_is_alive(priv)) |
5a66926a ZY |
2752 | return -EAGAIN; |
2753 | ||
b481de9c ZY |
2754 | mutex_lock(&priv->mutex); |
2755 | ||
b481de9c | 2756 | if (conf->bssid) |
e174961c | 2757 | IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid); |
b481de9c | 2758 | |
4150c572 JB |
2759 | /* |
2760 | * very dubious code was here; the probe filtering flag is never set: | |
2761 | * | |
b481de9c ZY |
2762 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
2763 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 2764 | */ |
b481de9c | 2765 | |
05c914fe | 2766 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
2767 | if (!conf->bssid) { |
2768 | conf->bssid = priv->mac_addr; | |
2769 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
e174961c JB |
2770 | IWL_DEBUG_MAC80211("bssid was set to: %pM\n", |
2771 | conf->bssid); | |
b481de9c ZY |
2772 | } |
2773 | if (priv->ibss_beacon) | |
2774 | dev_kfree_skb(priv->ibss_beacon); | |
2775 | ||
9d139c81 | 2776 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
b481de9c ZY |
2777 | } |
2778 | ||
fee1247a | 2779 | if (iwl_is_rfkill(priv)) |
fde3571f MA |
2780 | goto done; |
2781 | ||
b481de9c ZY |
2782 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
2783 | !is_multicast_ether_addr(conf->bssid)) { | |
2784 | /* If there is currently a HW scan going on in the background | |
2785 | * then we need to cancel it else the RXON below will fail. */ | |
2a421b91 | 2786 | if (iwl_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
2787 | IWL_WARNING("Aborted scan still in progress " |
2788 | "after 100ms\n"); | |
2789 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
2790 | mutex_unlock(&priv->mutex); | |
2791 | return -EAGAIN; | |
2792 | } | |
2793 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
2794 | ||
2795 | /* TODO: Audit driver for usage of these members and see | |
2796 | * if mac80211 deprecates them (priv->bssid looks like it | |
2797 | * shouldn't be there, but I haven't scanned the IBSS code | |
2798 | * to verify) - jpk */ | |
2799 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
2800 | ||
05c914fe | 2801 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
5b9f8cd3 | 2802 | iwl_config_ap(priv); |
b481de9c | 2803 | else { |
5b9f8cd3 | 2804 | rc = iwl_commit_rxon(priv); |
05c914fe | 2805 | if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) |
4f40e4d9 | 2806 | iwl_rxon_add_station( |
b481de9c ZY |
2807 | priv, priv->active_rxon.bssid_addr, 1); |
2808 | } | |
2809 | ||
2810 | } else { | |
2a421b91 | 2811 | iwl_scan_cancel_timeout(priv, 100); |
b481de9c | 2812 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
5b9f8cd3 | 2813 | iwl_commit_rxon(priv); |
b481de9c ZY |
2814 | } |
2815 | ||
fde3571f | 2816 | done: |
b481de9c ZY |
2817 | IWL_DEBUG_MAC80211("leave\n"); |
2818 | mutex_unlock(&priv->mutex); | |
2819 | ||
2820 | return 0; | |
2821 | } | |
2822 | ||
5b9f8cd3 | 2823 | static void iwl_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
2824 | unsigned int changed_flags, |
2825 | unsigned int *total_flags, | |
2826 | int mc_count, struct dev_addr_list *mc_list) | |
2827 | { | |
4419e39b | 2828 | struct iwl_priv *priv = hw->priv; |
352bc8de ZY |
2829 | __le32 *filter_flags = &priv->staging_rxon.filter_flags; |
2830 | ||
2831 | IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", | |
2832 | changed_flags, *total_flags); | |
25b3f57c | 2833 | |
352bc8de ZY |
2834 | if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) { |
2835 | if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) | |
2836 | *filter_flags |= RXON_FILTER_PROMISC_MSK; | |
2837 | else | |
2838 | *filter_flags &= ~RXON_FILTER_PROMISC_MSK; | |
2839 | } | |
2840 | if (changed_flags & FIF_ALLMULTI) { | |
2841 | if (*total_flags & FIF_ALLMULTI) | |
2842 | *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK; | |
2843 | else | |
2844 | *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK; | |
2845 | } | |
2846 | if (changed_flags & FIF_CONTROL) { | |
2847 | if (*total_flags & FIF_CONTROL) | |
2848 | *filter_flags |= RXON_FILTER_CTL2HOST_MSK; | |
2849 | else | |
2850 | *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK; | |
2851 | } | |
2852 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { | |
2853 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) | |
2854 | *filter_flags |= RXON_FILTER_BCON_AWARE_MSK; | |
2855 | else | |
2856 | *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK; | |
4419e39b | 2857 | } |
352bc8de ZY |
2858 | |
2859 | /* We avoid iwl_commit_rxon here to commit the new filter flags | |
2860 | * since mac80211 will call ieee80211_hw_config immediately. | |
2861 | * (mc_list is not supported at this time). Otherwise, we need to | |
2862 | * queue a background iwl_commit_rxon work. | |
2863 | */ | |
2864 | ||
2865 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
25b3f57c | 2866 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
4150c572 JB |
2867 | } |
2868 | ||
5b9f8cd3 | 2869 | static void iwl_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
2870 | struct ieee80211_if_init_conf *conf) |
2871 | { | |
c79dd5b5 | 2872 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
2873 | |
2874 | IWL_DEBUG_MAC80211("enter\n"); | |
2875 | ||
2876 | mutex_lock(&priv->mutex); | |
948c171c | 2877 | |
fee1247a | 2878 | if (iwl_is_ready_rf(priv)) { |
2a421b91 | 2879 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 2880 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
5b9f8cd3 | 2881 | iwl_commit_rxon(priv); |
fde3571f | 2882 | } |
32bfd35d JB |
2883 | if (priv->vif == conf->vif) { |
2884 | priv->vif = NULL; | |
b481de9c | 2885 | memset(priv->bssid, 0, ETH_ALEN); |
b481de9c ZY |
2886 | } |
2887 | mutex_unlock(&priv->mutex); | |
2888 | ||
2889 | IWL_DEBUG_MAC80211("leave\n"); | |
2890 | ||
2891 | } | |
471b3efd | 2892 | |
3109ece1 | 2893 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
5b9f8cd3 | 2894 | static void iwl_bss_info_changed(struct ieee80211_hw *hw, |
471b3efd JB |
2895 | struct ieee80211_vif *vif, |
2896 | struct ieee80211_bss_conf *bss_conf, | |
2897 | u32 changes) | |
220173b0 | 2898 | { |
c79dd5b5 | 2899 | struct iwl_priv *priv = hw->priv; |
220173b0 | 2900 | |
3109ece1 TW |
2901 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); |
2902 | ||
471b3efd | 2903 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
3109ece1 TW |
2904 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", |
2905 | bss_conf->use_short_preamble); | |
471b3efd | 2906 | if (bss_conf->use_short_preamble) |
220173b0 TW |
2907 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
2908 | else | |
2909 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2910 | } | |
2911 | ||
471b3efd | 2912 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
3109ece1 | 2913 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); |
8318d78a | 2914 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
220173b0 TW |
2915 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
2916 | else | |
2917 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
2918 | } | |
2919 | ||
98952d5d | 2920 | if (changes & BSS_CHANGED_HT) { |
5b9f8cd3 | 2921 | iwl_ht_conf(priv, bss_conf); |
c7de35cd | 2922 | iwl_set_rxon_chain(priv); |
98952d5d TW |
2923 | } |
2924 | ||
471b3efd | 2925 | if (changes & BSS_CHANGED_ASSOC) { |
3109ece1 | 2926 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); |
508e32e1 RC |
2927 | /* This should never happen as this function should |
2928 | * never be called from interrupt context. */ | |
2929 | if (WARN_ON_ONCE(in_interrupt())) | |
2930 | return; | |
3109ece1 TW |
2931 | if (bss_conf->assoc) { |
2932 | priv->assoc_id = bss_conf->aid; | |
2933 | priv->beacon_int = bss_conf->beacon_int; | |
b5d7be5e | 2934 | priv->power_data.dtim_period = bss_conf->dtim_period; |
3109ece1 TW |
2935 | priv->timestamp = bss_conf->timestamp; |
2936 | priv->assoc_capability = bss_conf->assoc_capability; | |
9ccacb86 TW |
2937 | |
2938 | /* we have just associated, don't start scan too early | |
2939 | * leave time for EAPOL exchange to complete | |
2940 | */ | |
3109ece1 TW |
2941 | priv->next_scan_jiffies = jiffies + |
2942 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
508e32e1 | 2943 | mutex_lock(&priv->mutex); |
5b9f8cd3 | 2944 | iwl_post_associate(priv); |
508e32e1 | 2945 | mutex_unlock(&priv->mutex); |
3109ece1 TW |
2946 | } else { |
2947 | priv->assoc_id = 0; | |
2948 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
2949 | } | |
2950 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { | |
2951 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
7e8c519e | 2952 | iwl_send_rxon_assoc(priv); |
471b3efd JB |
2953 | } |
2954 | ||
220173b0 | 2955 | } |
b481de9c | 2956 | |
cb43dc25 | 2957 | static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len) |
b481de9c | 2958 | { |
b481de9c | 2959 | unsigned long flags; |
c79dd5b5 | 2960 | struct iwl_priv *priv = hw->priv; |
8d09a5e1 | 2961 | int ret; |
b481de9c ZY |
2962 | |
2963 | IWL_DEBUG_MAC80211("enter\n"); | |
2964 | ||
052c4b9f | 2965 | mutex_lock(&priv->mutex); |
b481de9c ZY |
2966 | spin_lock_irqsave(&priv->lock, flags); |
2967 | ||
fee1247a | 2968 | if (!iwl_is_ready_rf(priv)) { |
cb43dc25 | 2969 | ret = -EIO; |
b481de9c ZY |
2970 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); |
2971 | goto out_unlock; | |
2972 | } | |
2973 | ||
8d09a5e1 TW |
2974 | /* We don't schedule scan within next_scan_jiffies period. |
2975 | * Avoid scanning during possible EAPOL exchange, return | |
2976 | * success immediately. | |
2977 | */ | |
7878a5a4 | 2978 | if (priv->next_scan_jiffies && |
cb43dc25 | 2979 | time_after(priv->next_scan_jiffies, jiffies)) { |
681c0050 | 2980 | IWL_DEBUG_SCAN("scan rejected: within next scan period\n"); |
8d09a5e1 TW |
2981 | queue_work(priv->workqueue, &priv->scan_completed); |
2982 | ret = 0; | |
7878a5a4 MA |
2983 | goto out_unlock; |
2984 | } | |
8d09a5e1 | 2985 | |
b481de9c | 2986 | /* if we just finished scan ask for delay */ |
681c0050 | 2987 | if (iwl_is_associated(priv) && priv->last_scan_jiffies && |
cb43dc25 | 2988 | time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, jiffies)) { |
681c0050 | 2989 | IWL_DEBUG_SCAN("scan rejected: within previous scan period\n"); |
8d09a5e1 TW |
2990 | queue_work(priv->workqueue, &priv->scan_completed); |
2991 | ret = 0; | |
b481de9c ZY |
2992 | goto out_unlock; |
2993 | } | |
8d09a5e1 | 2994 | |
cb43dc25 | 2995 | if (ssid_len) { |
b481de9c | 2996 | priv->one_direct_scan = 1; |
cb43dc25 | 2997 | priv->direct_ssid_len = min_t(u8, ssid_len, IW_ESSID_MAX_SIZE); |
b481de9c | 2998 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); |
cb43dc25 | 2999 | } else { |
948c171c | 3000 | priv->one_direct_scan = 0; |
cb43dc25 | 3001 | } |
b481de9c | 3002 | |
cb43dc25 | 3003 | ret = iwl_scan_initiate(priv); |
b481de9c ZY |
3004 | |
3005 | IWL_DEBUG_MAC80211("leave\n"); | |
3006 | ||
3007 | out_unlock: | |
3008 | spin_unlock_irqrestore(&priv->lock, flags); | |
052c4b9f | 3009 | mutex_unlock(&priv->mutex); |
b481de9c | 3010 | |
cb43dc25 | 3011 | return ret; |
b481de9c ZY |
3012 | } |
3013 | ||
5b9f8cd3 | 3014 | static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw, |
ab885f8c EG |
3015 | struct ieee80211_key_conf *keyconf, const u8 *addr, |
3016 | u32 iv32, u16 *phase1key) | |
3017 | { | |
ab885f8c | 3018 | |
9f58671e | 3019 | struct iwl_priv *priv = hw->priv; |
ab885f8c EG |
3020 | IWL_DEBUG_MAC80211("enter\n"); |
3021 | ||
9f58671e | 3022 | iwl_update_tkip_key(priv, keyconf, addr, iv32, phase1key); |
ab885f8c EG |
3023 | |
3024 | IWL_DEBUG_MAC80211("leave\n"); | |
3025 | } | |
3026 | ||
5b9f8cd3 | 3027 | static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
3028 | const u8 *local_addr, const u8 *addr, |
3029 | struct ieee80211_key_conf *key) | |
3030 | { | |
c79dd5b5 | 3031 | struct iwl_priv *priv = hw->priv; |
deb09c43 EG |
3032 | int ret = 0; |
3033 | u8 sta_id = IWL_INVALID_STATION; | |
6974e363 | 3034 | u8 is_default_wep_key = 0; |
b481de9c ZY |
3035 | |
3036 | IWL_DEBUG_MAC80211("enter\n"); | |
3037 | ||
099b40b7 | 3038 | if (priv->hw_params.sw_crypto) { |
b481de9c ZY |
3039 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
3040 | return -EOPNOTSUPP; | |
3041 | } | |
3042 | ||
3043 | if (is_zero_ether_addr(addr)) | |
3044 | /* only support pairwise keys */ | |
3045 | return -EOPNOTSUPP; | |
3046 | ||
947b13a7 | 3047 | sta_id = iwl_find_station(priv, addr); |
6974e363 | 3048 | if (sta_id == IWL_INVALID_STATION) { |
e174961c JB |
3049 | IWL_DEBUG_MAC80211("leave - %pM not in station map.\n", |
3050 | addr); | |
6974e363 | 3051 | return -EINVAL; |
b481de9c | 3052 | |
deb09c43 | 3053 | } |
b481de9c | 3054 | |
6974e363 | 3055 | mutex_lock(&priv->mutex); |
2a421b91 | 3056 | iwl_scan_cancel_timeout(priv, 100); |
6974e363 EG |
3057 | mutex_unlock(&priv->mutex); |
3058 | ||
3059 | /* If we are getting WEP group key and we didn't receive any key mapping | |
3060 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
3061 | * in 1X mode. | |
3062 | * In legacy wep mode, we use another host command to the uCode */ | |
5425e490 | 3063 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
05c914fe | 3064 | priv->iw_mode != NL80211_IFTYPE_AP) { |
6974e363 EG |
3065 | if (cmd == SET_KEY) |
3066 | is_default_wep_key = !priv->key_mapping_key; | |
3067 | else | |
ccc038ab EG |
3068 | is_default_wep_key = |
3069 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 3070 | } |
052c4b9f | 3071 | |
b481de9c | 3072 | switch (cmd) { |
deb09c43 | 3073 | case SET_KEY: |
6974e363 EG |
3074 | if (is_default_wep_key) |
3075 | ret = iwl_set_default_wep_key(priv, key); | |
deb09c43 | 3076 | else |
7480513f | 3077 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
3078 | |
3079 | IWL_DEBUG_MAC80211("enable hwcrypto key\n"); | |
b481de9c ZY |
3080 | break; |
3081 | case DISABLE_KEY: | |
6974e363 EG |
3082 | if (is_default_wep_key) |
3083 | ret = iwl_remove_default_wep_key(priv, key); | |
deb09c43 | 3084 | else |
3ec47732 | 3085 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
3086 | |
3087 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); | |
b481de9c ZY |
3088 | break; |
3089 | default: | |
deb09c43 | 3090 | ret = -EINVAL; |
b481de9c ZY |
3091 | } |
3092 | ||
3093 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c | 3094 | |
deb09c43 | 3095 | return ret; |
b481de9c ZY |
3096 | } |
3097 | ||
5b9f8cd3 | 3098 | static int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
3099 | const struct ieee80211_tx_queue_params *params) |
3100 | { | |
c79dd5b5 | 3101 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3102 | unsigned long flags; |
3103 | int q; | |
b481de9c ZY |
3104 | |
3105 | IWL_DEBUG_MAC80211("enter\n"); | |
3106 | ||
fee1247a | 3107 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3108 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
3109 | return -EIO; | |
3110 | } | |
3111 | ||
3112 | if (queue >= AC_NUM) { | |
3113 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
3114 | return 0; | |
3115 | } | |
3116 | ||
b481de9c ZY |
3117 | q = AC_NUM - 1 - queue; |
3118 | ||
3119 | spin_lock_irqsave(&priv->lock, flags); | |
3120 | ||
3121 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
3122 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
3123 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
3124 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 3125 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
3126 | |
3127 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
3128 | priv->qos_data.qos_active = 1; | |
3129 | ||
05c914fe | 3130 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
1ff50bda | 3131 | iwl_activate_qos(priv, 1); |
3109ece1 | 3132 | else if (priv->assoc_id && iwl_is_associated(priv)) |
1ff50bda | 3133 | iwl_activate_qos(priv, 0); |
b481de9c | 3134 | |
1ff50bda | 3135 | spin_unlock_irqrestore(&priv->lock, flags); |
b481de9c | 3136 | |
b481de9c ZY |
3137 | IWL_DEBUG_MAC80211("leave\n"); |
3138 | return 0; | |
3139 | } | |
3140 | ||
5b9f8cd3 | 3141 | static int iwl_mac_ampdu_action(struct ieee80211_hw *hw, |
d783b061 | 3142 | enum ieee80211_ampdu_mlme_action action, |
17741cdc | 3143 | struct ieee80211_sta *sta, u16 tid, u16 *ssn) |
d783b061 TW |
3144 | { |
3145 | struct iwl_priv *priv = hw->priv; | |
d783b061 | 3146 | |
e174961c JB |
3147 | IWL_DEBUG_HT("A-MPDU action on addr %pM tid %d\n", |
3148 | sta->addr, tid); | |
d783b061 TW |
3149 | |
3150 | if (!(priv->cfg->sku & IWL_SKU_N)) | |
3151 | return -EACCES; | |
3152 | ||
3153 | switch (action) { | |
3154 | case IEEE80211_AMPDU_RX_START: | |
3155 | IWL_DEBUG_HT("start Rx\n"); | |
9f58671e | 3156 | return iwl_sta_rx_agg_start(priv, sta->addr, tid, *ssn); |
d783b061 TW |
3157 | case IEEE80211_AMPDU_RX_STOP: |
3158 | IWL_DEBUG_HT("stop Rx\n"); | |
9f58671e | 3159 | return iwl_sta_rx_agg_stop(priv, sta->addr, tid); |
d783b061 TW |
3160 | case IEEE80211_AMPDU_TX_START: |
3161 | IWL_DEBUG_HT("start Tx\n"); | |
17741cdc | 3162 | return iwl_tx_agg_start(priv, sta->addr, tid, ssn); |
d783b061 TW |
3163 | case IEEE80211_AMPDU_TX_STOP: |
3164 | IWL_DEBUG_HT("stop Tx\n"); | |
17741cdc | 3165 | return iwl_tx_agg_stop(priv, sta->addr, tid); |
d783b061 TW |
3166 | default: |
3167 | IWL_DEBUG_HT("unknown\n"); | |
3168 | return -EINVAL; | |
3169 | break; | |
3170 | } | |
3171 | return 0; | |
3172 | } | |
9f58671e | 3173 | |
5b9f8cd3 | 3174 | static int iwl_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
3175 | struct ieee80211_tx_queue_stats *stats) |
3176 | { | |
c79dd5b5 | 3177 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3178 | int i, avail; |
16466903 | 3179 | struct iwl_tx_queue *txq; |
443cfd45 | 3180 | struct iwl_queue *q; |
b481de9c ZY |
3181 | unsigned long flags; |
3182 | ||
3183 | IWL_DEBUG_MAC80211("enter\n"); | |
3184 | ||
fee1247a | 3185 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
3186 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
3187 | return -EIO; | |
3188 | } | |
3189 | ||
3190 | spin_lock_irqsave(&priv->lock, flags); | |
3191 | ||
3192 | for (i = 0; i < AC_NUM; i++) { | |
3193 | txq = &priv->txq[i]; | |
3194 | q = &txq->q; | |
443cfd45 | 3195 | avail = iwl_queue_space(q); |
b481de9c | 3196 | |
57ffc589 JB |
3197 | stats[i].len = q->n_window - avail; |
3198 | stats[i].limit = q->n_window - q->high_mark; | |
3199 | stats[i].count = q->n_window; | |
b481de9c ZY |
3200 | |
3201 | } | |
3202 | spin_unlock_irqrestore(&priv->lock, flags); | |
3203 | ||
3204 | IWL_DEBUG_MAC80211("leave\n"); | |
3205 | ||
3206 | return 0; | |
3207 | } | |
3208 | ||
5b9f8cd3 | 3209 | static int iwl_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
3210 | struct ieee80211_low_level_stats *stats) |
3211 | { | |
bf403db8 EK |
3212 | struct iwl_priv *priv = hw->priv; |
3213 | ||
3214 | priv = hw->priv; | |
b481de9c ZY |
3215 | IWL_DEBUG_MAC80211("enter\n"); |
3216 | IWL_DEBUG_MAC80211("leave\n"); | |
3217 | ||
3218 | return 0; | |
3219 | } | |
3220 | ||
5b9f8cd3 | 3221 | static void iwl_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 3222 | { |
c79dd5b5 | 3223 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3224 | unsigned long flags; |
3225 | ||
3226 | mutex_lock(&priv->mutex); | |
3227 | IWL_DEBUG_MAC80211("enter\n"); | |
3228 | ||
b481de9c | 3229 | spin_lock_irqsave(&priv->lock, flags); |
fd105e79 | 3230 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); |
b481de9c | 3231 | spin_unlock_irqrestore(&priv->lock, flags); |
b481de9c | 3232 | |
c7de35cd | 3233 | iwl_reset_qos(priv); |
b481de9c | 3234 | |
b481de9c ZY |
3235 | spin_lock_irqsave(&priv->lock, flags); |
3236 | priv->assoc_id = 0; | |
3237 | priv->assoc_capability = 0; | |
b481de9c ZY |
3238 | priv->assoc_station_added = 0; |
3239 | ||
3240 | /* new association get rid of ibss beacon skb */ | |
3241 | if (priv->ibss_beacon) | |
3242 | dev_kfree_skb(priv->ibss_beacon); | |
3243 | ||
3244 | priv->ibss_beacon = NULL; | |
3245 | ||
3246 | priv->beacon_int = priv->hw->conf.beacon_int; | |
3109ece1 | 3247 | priv->timestamp = 0; |
05c914fe | 3248 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
b481de9c ZY |
3249 | priv->beacon_int = 0; |
3250 | ||
3251 | spin_unlock_irqrestore(&priv->lock, flags); | |
3252 | ||
fee1247a | 3253 | if (!iwl_is_ready_rf(priv)) { |
fde3571f MA |
3254 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
3255 | mutex_unlock(&priv->mutex); | |
3256 | return; | |
3257 | } | |
3258 | ||
052c4b9f | 3259 | /* we are restarting association process |
3260 | * clear RXON_FILTER_ASSOC_MSK bit | |
3261 | */ | |
05c914fe | 3262 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
2a421b91 | 3263 | iwl_scan_cancel_timeout(priv, 100); |
052c4b9f | 3264 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
5b9f8cd3 | 3265 | iwl_commit_rxon(priv); |
052c4b9f | 3266 | } |
3267 | ||
5da4b55f MA |
3268 | iwl_power_update_mode(priv, 0); |
3269 | ||
b481de9c | 3270 | /* Per mac80211.h: This is only used in IBSS mode... */ |
05c914fe | 3271 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
052c4b9f | 3272 | |
c90a74ba EG |
3273 | /* switch to CAM during association period. |
3274 | * the ucode will block any association/authentication | |
3275 | * frome during assiciation period if it can not hear | |
3276 | * the AP because of PM. the timer enable PM back is | |
3277 | * association do not complete | |
3278 | */ | |
3279 | if (priv->hw->conf.channel->flags & (IEEE80211_CHAN_PASSIVE_SCAN | | |
3280 | IEEE80211_CHAN_RADAR)) | |
3281 | iwl_power_disable_management(priv, 3000); | |
3282 | ||
b481de9c ZY |
3283 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
3284 | mutex_unlock(&priv->mutex); | |
3285 | return; | |
3286 | } | |
3287 | ||
5b9f8cd3 | 3288 | iwl_set_rate(priv); |
b481de9c ZY |
3289 | |
3290 | mutex_unlock(&priv->mutex); | |
3291 | ||
3292 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
3293 | } |
3294 | ||
5b9f8cd3 | 3295 | static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3296 | { |
c79dd5b5 | 3297 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3298 | unsigned long flags; |
2ff75b78 | 3299 | __le64 timestamp; |
b481de9c | 3300 | |
b481de9c ZY |
3301 | IWL_DEBUG_MAC80211("enter\n"); |
3302 | ||
fee1247a | 3303 | if (!iwl_is_ready_rf(priv)) { |
b481de9c | 3304 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
b481de9c ZY |
3305 | return -EIO; |
3306 | } | |
3307 | ||
05c914fe | 3308 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
b481de9c | 3309 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); |
b481de9c ZY |
3310 | return -EIO; |
3311 | } | |
3312 | ||
3313 | spin_lock_irqsave(&priv->lock, flags); | |
3314 | ||
3315 | if (priv->ibss_beacon) | |
3316 | dev_kfree_skb(priv->ibss_beacon); | |
3317 | ||
3318 | priv->ibss_beacon = skb; | |
3319 | ||
3320 | priv->assoc_id = 0; | |
2ff75b78 | 3321 | timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; |
b94d8eea | 3322 | priv->timestamp = le64_to_cpu(timestamp); |
b481de9c ZY |
3323 | |
3324 | IWL_DEBUG_MAC80211("leave\n"); | |
3325 | spin_unlock_irqrestore(&priv->lock, flags); | |
3326 | ||
c7de35cd | 3327 | iwl_reset_qos(priv); |
b481de9c | 3328 | |
5b9f8cd3 | 3329 | iwl_post_associate(priv); |
b481de9c | 3330 | |
b481de9c ZY |
3331 | |
3332 | return 0; | |
3333 | } | |
3334 | ||
b481de9c ZY |
3335 | /***************************************************************************** |
3336 | * | |
3337 | * sysfs attributes | |
3338 | * | |
3339 | *****************************************************************************/ | |
3340 | ||
0a6857e7 | 3341 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3342 | |
3343 | /* | |
3344 | * The following adds a new attribute to the sysfs representation | |
3345 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
3346 | * used for controlling the debug level. | |
3347 | * | |
3348 | * See the level definitions in iwl for details. | |
3349 | */ | |
3350 | ||
8cf769c6 EK |
3351 | static ssize_t show_debug_level(struct device *d, |
3352 | struct device_attribute *attr, char *buf) | |
b481de9c | 3353 | { |
8cf769c6 EK |
3354 | struct iwl_priv *priv = d->driver_data; |
3355 | ||
3356 | return sprintf(buf, "0x%08X\n", priv->debug_level); | |
b481de9c | 3357 | } |
8cf769c6 EK |
3358 | static ssize_t store_debug_level(struct device *d, |
3359 | struct device_attribute *attr, | |
b481de9c ZY |
3360 | const char *buf, size_t count) |
3361 | { | |
8cf769c6 | 3362 | struct iwl_priv *priv = d->driver_data; |
9257746f TW |
3363 | unsigned long val; |
3364 | int ret; | |
b481de9c | 3365 | |
9257746f TW |
3366 | ret = strict_strtoul(buf, 0, &val); |
3367 | if (ret) | |
b481de9c ZY |
3368 | printk(KERN_INFO DRV_NAME |
3369 | ": %s is not in hex or decimal form.\n", buf); | |
3370 | else | |
8cf769c6 | 3371 | priv->debug_level = val; |
b481de9c ZY |
3372 | |
3373 | return strnlen(buf, count); | |
3374 | } | |
3375 | ||
8cf769c6 EK |
3376 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
3377 | show_debug_level, store_debug_level); | |
3378 | ||
b481de9c | 3379 | |
0a6857e7 | 3380 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 3381 | |
b481de9c | 3382 | |
bc6f59bc TW |
3383 | static ssize_t show_version(struct device *d, |
3384 | struct device_attribute *attr, char *buf) | |
3385 | { | |
3386 | struct iwl_priv *priv = d->driver_data; | |
885ba202 | 3387 | struct iwl_alive_resp *palive = &priv->card_alive; |
f236a265 TW |
3388 | ssize_t pos = 0; |
3389 | u16 eeprom_ver; | |
bc6f59bc TW |
3390 | |
3391 | if (palive->is_valid) | |
f236a265 TW |
3392 | pos += sprintf(buf + pos, |
3393 | "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" | |
3394 | "fw type: 0x%01X 0x%01X\n", | |
bc6f59bc TW |
3395 | palive->ucode_major, palive->ucode_minor, |
3396 | palive->sw_rev[0], palive->sw_rev[1], | |
3397 | palive->ver_type, palive->ver_subtype); | |
bc6f59bc | 3398 | else |
f236a265 TW |
3399 | pos += sprintf(buf + pos, "fw not loaded\n"); |
3400 | ||
3401 | if (priv->eeprom) { | |
3402 | eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); | |
3403 | pos += sprintf(buf + pos, "EEPROM version: 0x%x\n", | |
3404 | eeprom_ver); | |
3405 | } else { | |
3406 | pos += sprintf(buf + pos, "EEPROM not initialzed\n"); | |
3407 | } | |
3408 | ||
3409 | return pos; | |
bc6f59bc TW |
3410 | } |
3411 | ||
3412 | static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); | |
3413 | ||
b481de9c ZY |
3414 | static ssize_t show_temperature(struct device *d, |
3415 | struct device_attribute *attr, char *buf) | |
3416 | { | |
c79dd5b5 | 3417 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 3418 | |
fee1247a | 3419 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3420 | return -EAGAIN; |
3421 | ||
91dbc5bd | 3422 | return sprintf(buf, "%d\n", priv->temperature); |
b481de9c ZY |
3423 | } |
3424 | ||
3425 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
3426 | ||
b481de9c ZY |
3427 | static ssize_t show_tx_power(struct device *d, |
3428 | struct device_attribute *attr, char *buf) | |
3429 | { | |
c79dd5b5 | 3430 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
630fe9b6 | 3431 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
b481de9c ZY |
3432 | } |
3433 | ||
3434 | static ssize_t store_tx_power(struct device *d, | |
3435 | struct device_attribute *attr, | |
3436 | const char *buf, size_t count) | |
3437 | { | |
c79dd5b5 | 3438 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
9257746f TW |
3439 | unsigned long val; |
3440 | int ret; | |
b481de9c | 3441 | |
9257746f TW |
3442 | ret = strict_strtoul(buf, 10, &val); |
3443 | if (ret) | |
b481de9c ZY |
3444 | printk(KERN_INFO DRV_NAME |
3445 | ": %s is not in decimal form.\n", buf); | |
3446 | else | |
630fe9b6 | 3447 | iwl_set_tx_power(priv, val, false); |
b481de9c ZY |
3448 | |
3449 | return count; | |
3450 | } | |
3451 | ||
3452 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
3453 | ||
3454 | static ssize_t show_flags(struct device *d, | |
3455 | struct device_attribute *attr, char *buf) | |
3456 | { | |
c79dd5b5 | 3457 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3458 | |
3459 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
3460 | } | |
3461 | ||
3462 | static ssize_t store_flags(struct device *d, | |
3463 | struct device_attribute *attr, | |
3464 | const char *buf, size_t count) | |
3465 | { | |
c79dd5b5 | 3466 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
9257746f TW |
3467 | unsigned long val; |
3468 | u32 flags; | |
3469 | int ret = strict_strtoul(buf, 0, &val); | |
926f0b2e | 3470 | if (ret) |
9257746f TW |
3471 | return ret; |
3472 | flags = (u32)val; | |
b481de9c ZY |
3473 | |
3474 | mutex_lock(&priv->mutex); | |
3475 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
3476 | /* Cancel any currently running scans... */ | |
2a421b91 | 3477 | if (iwl_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
3478 | IWL_WARNING("Could not cancel scan.\n"); |
3479 | else { | |
9257746f | 3480 | IWL_DEBUG_INFO("Commit rxon.flags = 0x%04X\n", flags); |
b481de9c | 3481 | priv->staging_rxon.flags = cpu_to_le32(flags); |
5b9f8cd3 | 3482 | iwl_commit_rxon(priv); |
b481de9c ZY |
3483 | } |
3484 | } | |
3485 | mutex_unlock(&priv->mutex); | |
3486 | ||
3487 | return count; | |
3488 | } | |
3489 | ||
3490 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
3491 | ||
3492 | static ssize_t show_filter_flags(struct device *d, | |
3493 | struct device_attribute *attr, char *buf) | |
3494 | { | |
c79dd5b5 | 3495 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
3496 | |
3497 | return sprintf(buf, "0x%04X\n", | |
3498 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
3499 | } | |
3500 | ||
3501 | static ssize_t store_filter_flags(struct device *d, | |
3502 | struct device_attribute *attr, | |
3503 | const char *buf, size_t count) | |
3504 | { | |
c79dd5b5 | 3505 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
9257746f TW |
3506 | unsigned long val; |
3507 | u32 filter_flags; | |
3508 | int ret = strict_strtoul(buf, 0, &val); | |
926f0b2e | 3509 | if (ret) |
9257746f TW |
3510 | return ret; |
3511 | filter_flags = (u32)val; | |
b481de9c ZY |
3512 | |
3513 | mutex_lock(&priv->mutex); | |
3514 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
3515 | /* Cancel any currently running scans... */ | |
2a421b91 | 3516 | if (iwl_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
3517 | IWL_WARNING("Could not cancel scan.\n"); |
3518 | else { | |
3519 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
3520 | "0x%04X\n", filter_flags); | |
3521 | priv->staging_rxon.filter_flags = | |
3522 | cpu_to_le32(filter_flags); | |
5b9f8cd3 | 3523 | iwl_commit_rxon(priv); |
b481de9c ZY |
3524 | } |
3525 | } | |
3526 | mutex_unlock(&priv->mutex); | |
3527 | ||
3528 | return count; | |
3529 | } | |
3530 | ||
3531 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
3532 | store_filter_flags); | |
3533 | ||
b481de9c ZY |
3534 | static ssize_t store_retry_rate(struct device *d, |
3535 | struct device_attribute *attr, | |
3536 | const char *buf, size_t count) | |
3537 | { | |
c79dd5b5 | 3538 | struct iwl_priv *priv = dev_get_drvdata(d); |
9257746f TW |
3539 | long val; |
3540 | int ret = strict_strtol(buf, 10, &val); | |
3541 | if (!ret) | |
3542 | return ret; | |
b481de9c | 3543 | |
9257746f | 3544 | priv->retry_rate = (val > 0) ? val : 1; |
b481de9c ZY |
3545 | |
3546 | return count; | |
3547 | } | |
3548 | ||
3549 | static ssize_t show_retry_rate(struct device *d, | |
3550 | struct device_attribute *attr, char *buf) | |
3551 | { | |
c79dd5b5 | 3552 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3553 | return sprintf(buf, "%d", priv->retry_rate); |
3554 | } | |
3555 | ||
3556 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
3557 | store_retry_rate); | |
3558 | ||
3559 | static ssize_t store_power_level(struct device *d, | |
3560 | struct device_attribute *attr, | |
3561 | const char *buf, size_t count) | |
3562 | { | |
c79dd5b5 | 3563 | struct iwl_priv *priv = dev_get_drvdata(d); |
298df1f6 | 3564 | int ret; |
9257746f TW |
3565 | unsigned long mode; |
3566 | ||
b481de9c | 3567 | |
b481de9c ZY |
3568 | mutex_lock(&priv->mutex); |
3569 | ||
fee1247a | 3570 | if (!iwl_is_ready(priv)) { |
298df1f6 | 3571 | ret = -EAGAIN; |
b481de9c ZY |
3572 | goto out; |
3573 | } | |
3574 | ||
9257746f | 3575 | ret = strict_strtoul(buf, 10, &mode); |
926f0b2e | 3576 | if (ret) |
9257746f TW |
3577 | goto out; |
3578 | ||
298df1f6 EK |
3579 | ret = iwl_power_set_user_mode(priv, mode); |
3580 | if (ret) { | |
5da4b55f MA |
3581 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); |
3582 | goto out; | |
b481de9c | 3583 | } |
298df1f6 | 3584 | ret = count; |
b481de9c ZY |
3585 | |
3586 | out: | |
3587 | mutex_unlock(&priv->mutex); | |
298df1f6 | 3588 | return ret; |
b481de9c ZY |
3589 | } |
3590 | ||
b481de9c ZY |
3591 | static ssize_t show_power_level(struct device *d, |
3592 | struct device_attribute *attr, char *buf) | |
3593 | { | |
c79dd5b5 | 3594 | struct iwl_priv *priv = dev_get_drvdata(d); |
298df1f6 EK |
3595 | int mode = priv->power_data.user_power_setting; |
3596 | int system = priv->power_data.system_power_setting; | |
5da4b55f | 3597 | int level = priv->power_data.power_mode; |
b481de9c ZY |
3598 | char *p = buf; |
3599 | ||
298df1f6 EK |
3600 | switch (system) { |
3601 | case IWL_POWER_SYS_AUTO: | |
3602 | p += sprintf(p, "SYSTEM:auto"); | |
b481de9c | 3603 | break; |
298df1f6 EK |
3604 | case IWL_POWER_SYS_AC: |
3605 | p += sprintf(p, "SYSTEM:ac"); | |
3606 | break; | |
3607 | case IWL_POWER_SYS_BATTERY: | |
3608 | p += sprintf(p, "SYSTEM:battery"); | |
b481de9c | 3609 | break; |
b481de9c | 3610 | } |
298df1f6 | 3611 | |
c3056065 AK |
3612 | p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO) ? |
3613 | "fixed" : "auto"); | |
298df1f6 EK |
3614 | p += sprintf(p, "\tINDEX:%d", level); |
3615 | p += sprintf(p, "\n"); | |
3ac7f146 | 3616 | return p - buf + 1; |
b481de9c ZY |
3617 | } |
3618 | ||
3619 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
3620 | store_power_level); | |
3621 | ||
b481de9c ZY |
3622 | |
3623 | static ssize_t show_statistics(struct device *d, | |
3624 | struct device_attribute *attr, char *buf) | |
3625 | { | |
c79dd5b5 | 3626 | struct iwl_priv *priv = dev_get_drvdata(d); |
8f91aecb | 3627 | u32 size = sizeof(struct iwl_notif_statistics); |
b481de9c | 3628 | u32 len = 0, ofs = 0; |
3ac7f146 | 3629 | u8 *data = (u8 *)&priv->statistics; |
b481de9c ZY |
3630 | int rc = 0; |
3631 | ||
fee1247a | 3632 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3633 | return -EAGAIN; |
3634 | ||
3635 | mutex_lock(&priv->mutex); | |
49ea8596 | 3636 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
3637 | mutex_unlock(&priv->mutex); |
3638 | ||
3639 | if (rc) { | |
3640 | len = sprintf(buf, | |
3641 | "Error sending statistics request: 0x%08X\n", rc); | |
3642 | return len; | |
3643 | } | |
3644 | ||
3645 | while (size && (PAGE_SIZE - len)) { | |
3646 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3647 | PAGE_SIZE - len, 1); | |
3648 | len = strlen(buf); | |
3649 | if (PAGE_SIZE - len) | |
3650 | buf[len++] = '\n'; | |
3651 | ||
3652 | ofs += 16; | |
3653 | size -= min(size, 16U); | |
3654 | } | |
3655 | ||
3656 | return len; | |
3657 | } | |
3658 | ||
3659 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
3660 | ||
b481de9c ZY |
3661 | static ssize_t show_status(struct device *d, |
3662 | struct device_attribute *attr, char *buf) | |
3663 | { | |
c79dd5b5 | 3664 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
fee1247a | 3665 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3666 | return -EAGAIN; |
3667 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
3668 | } | |
3669 | ||
3670 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
3671 | ||
b481de9c ZY |
3672 | /***************************************************************************** |
3673 | * | |
3674 | * driver setup and teardown | |
3675 | * | |
3676 | *****************************************************************************/ | |
3677 | ||
4e39317d | 3678 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
3679 | { |
3680 | priv->workqueue = create_workqueue(DRV_NAME); | |
3681 | ||
3682 | init_waitqueue_head(&priv->wait_command_queue); | |
3683 | ||
5b9f8cd3 EG |
3684 | INIT_WORK(&priv->up, iwl_bg_up); |
3685 | INIT_WORK(&priv->restart, iwl_bg_restart); | |
3686 | INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); | |
3687 | INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill); | |
3688 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); | |
16e727e8 | 3689 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
4a4a9e81 TW |
3690 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); |
3691 | INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); | |
2a421b91 | 3692 | |
2a421b91 | 3693 | iwl_setup_scan_deferred_work(priv); |
c90a74ba | 3694 | iwl_setup_power_deferred_work(priv); |
bb8c093b | 3695 | |
4e39317d EG |
3696 | if (priv->cfg->ops->lib->setup_deferred_work) |
3697 | priv->cfg->ops->lib->setup_deferred_work(priv); | |
3698 | ||
3699 | init_timer(&priv->statistics_periodic); | |
3700 | priv->statistics_periodic.data = (unsigned long)priv; | |
5b9f8cd3 | 3701 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
b481de9c ZY |
3702 | |
3703 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
5b9f8cd3 | 3704 | iwl_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
3705 | } |
3706 | ||
4e39317d | 3707 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 3708 | { |
4e39317d EG |
3709 | if (priv->cfg->ops->lib->cancel_deferred_work) |
3710 | priv->cfg->ops->lib->cancel_deferred_work(priv); | |
b481de9c | 3711 | |
3ae6a054 | 3712 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c | 3713 | cancel_delayed_work(&priv->scan_check); |
c90a74ba | 3714 | cancel_delayed_work_sync(&priv->set_power_save); |
b481de9c | 3715 | cancel_delayed_work(&priv->alive_start); |
b481de9c | 3716 | cancel_work_sync(&priv->beacon_update); |
4e39317d | 3717 | del_timer_sync(&priv->statistics_periodic); |
b481de9c ZY |
3718 | } |
3719 | ||
5b9f8cd3 | 3720 | static struct attribute *iwl_sysfs_entries[] = { |
b481de9c ZY |
3721 | &dev_attr_flags.attr, |
3722 | &dev_attr_filter_flags.attr, | |
b481de9c ZY |
3723 | &dev_attr_power_level.attr, |
3724 | &dev_attr_retry_rate.attr, | |
b481de9c ZY |
3725 | &dev_attr_statistics.attr, |
3726 | &dev_attr_status.attr, | |
3727 | &dev_attr_temperature.attr, | |
b481de9c | 3728 | &dev_attr_tx_power.attr, |
8cf769c6 EK |
3729 | #ifdef CONFIG_IWLWIFI_DEBUG |
3730 | &dev_attr_debug_level.attr, | |
3731 | #endif | |
bc6f59bc | 3732 | &dev_attr_version.attr, |
b481de9c ZY |
3733 | |
3734 | NULL | |
3735 | }; | |
3736 | ||
5b9f8cd3 | 3737 | static struct attribute_group iwl_attribute_group = { |
b481de9c | 3738 | .name = NULL, /* put in device directory */ |
5b9f8cd3 | 3739 | .attrs = iwl_sysfs_entries, |
b481de9c ZY |
3740 | }; |
3741 | ||
5b9f8cd3 EG |
3742 | static struct ieee80211_ops iwl_hw_ops = { |
3743 | .tx = iwl_mac_tx, | |
3744 | .start = iwl_mac_start, | |
3745 | .stop = iwl_mac_stop, | |
3746 | .add_interface = iwl_mac_add_interface, | |
3747 | .remove_interface = iwl_mac_remove_interface, | |
3748 | .config = iwl_mac_config, | |
3749 | .config_interface = iwl_mac_config_interface, | |
3750 | .configure_filter = iwl_configure_filter, | |
3751 | .set_key = iwl_mac_set_key, | |
3752 | .update_tkip_key = iwl_mac_update_tkip_key, | |
3753 | .get_stats = iwl_mac_get_stats, | |
3754 | .get_tx_stats = iwl_mac_get_tx_stats, | |
3755 | .conf_tx = iwl_mac_conf_tx, | |
3756 | .reset_tsf = iwl_mac_reset_tsf, | |
3757 | .bss_info_changed = iwl_bss_info_changed, | |
3758 | .ampdu_action = iwl_mac_ampdu_action, | |
cb43dc25 | 3759 | .hw_scan = iwl_mac_hw_scan |
b481de9c ZY |
3760 | }; |
3761 | ||
5b9f8cd3 | 3762 | static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
3763 | { |
3764 | int err = 0; | |
c79dd5b5 | 3765 | struct iwl_priv *priv; |
b481de9c | 3766 | struct ieee80211_hw *hw; |
82b9a121 | 3767 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
0359facc | 3768 | unsigned long flags; |
b481de9c | 3769 | |
316c30d9 AK |
3770 | /************************ |
3771 | * 1. Allocating HW data | |
3772 | ************************/ | |
3773 | ||
6440adb5 BC |
3774 | /* Disabling hardware scan means that mac80211 will perform scans |
3775 | * "the hard way", rather than using device's scan. */ | |
1ea87396 | 3776 | if (cfg->mod_params->disable_hw_scan) { |
bf403db8 EK |
3777 | if (cfg->mod_params->debug & IWL_DL_INFO) |
3778 | dev_printk(KERN_DEBUG, &(pdev->dev), | |
3779 | "Disabling hw_scan\n"); | |
5b9f8cd3 | 3780 | iwl_hw_ops.hw_scan = NULL; |
b481de9c ZY |
3781 | } |
3782 | ||
5b9f8cd3 | 3783 | hw = iwl_alloc_all(cfg, &iwl_hw_ops); |
1d0a082d | 3784 | if (!hw) { |
b481de9c ZY |
3785 | err = -ENOMEM; |
3786 | goto out; | |
3787 | } | |
1d0a082d AK |
3788 | priv = hw->priv; |
3789 | /* At this point both hw and priv are allocated. */ | |
3790 | ||
b481de9c ZY |
3791 | SET_IEEE80211_DEV(hw, &pdev->dev); |
3792 | ||
3793 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); | |
82b9a121 | 3794 | priv->cfg = cfg; |
b481de9c | 3795 | priv->pci_dev = pdev; |
316c30d9 | 3796 | |
0a6857e7 | 3797 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 3798 | priv->debug_level = priv->cfg->mod_params->debug; |
b481de9c ZY |
3799 | atomic_set(&priv->restrict_refcnt, 0); |
3800 | #endif | |
b481de9c | 3801 | |
316c30d9 AK |
3802 | /************************** |
3803 | * 2. Initializing PCI bus | |
3804 | **************************/ | |
3805 | if (pci_enable_device(pdev)) { | |
3806 | err = -ENODEV; | |
3807 | goto out_ieee80211_free_hw; | |
3808 | } | |
3809 | ||
3810 | pci_set_master(pdev); | |
3811 | ||
093d874c | 3812 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); |
316c30d9 | 3813 | if (!err) |
093d874c | 3814 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36)); |
cc2a8ea8 | 3815 | if (err) { |
093d874c | 3816 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
cc2a8ea8 | 3817 | if (!err) |
093d874c | 3818 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
cc2a8ea8 | 3819 | /* both attempts failed: */ |
316c30d9 | 3820 | if (err) { |
cc2a8ea8 RR |
3821 | printk(KERN_WARNING "%s: No suitable DMA available.\n", |
3822 | DRV_NAME); | |
316c30d9 | 3823 | goto out_pci_disable_device; |
cc2a8ea8 | 3824 | } |
316c30d9 AK |
3825 | } |
3826 | ||
3827 | err = pci_request_regions(pdev, DRV_NAME); | |
3828 | if (err) | |
3829 | goto out_pci_disable_device; | |
3830 | ||
3831 | pci_set_drvdata(pdev, priv); | |
3832 | ||
316c30d9 AK |
3833 | |
3834 | /*********************** | |
3835 | * 3. Read REV register | |
3836 | ***********************/ | |
3837 | priv->hw_base = pci_iomap(pdev, 0, 0); | |
3838 | if (!priv->hw_base) { | |
3839 | err = -ENODEV; | |
3840 | goto out_pci_release_regions; | |
3841 | } | |
3842 | ||
3843 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
3844 | (unsigned long long) pci_resource_len(pdev, 0)); | |
3845 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
3846 | ||
b661c819 | 3847 | iwl_hw_detect(priv); |
316c30d9 | 3848 | printk(KERN_INFO DRV_NAME |
b661c819 TW |
3849 | ": Detected Intel Wireless WiFi Link %s REV=0x%X\n", |
3850 | priv->cfg->name, priv->hw_rev); | |
316c30d9 | 3851 | |
e7b63581 TW |
3852 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
3853 | * PCI Tx retries from interfering with C3 CPU state */ | |
3854 | pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); | |
3855 | ||
91238714 TW |
3856 | /* amp init */ |
3857 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
316c30d9 | 3858 | if (err < 0) { |
91238714 | 3859 | IWL_DEBUG_INFO("Failed to init APMG\n"); |
316c30d9 AK |
3860 | goto out_iounmap; |
3861 | } | |
91238714 TW |
3862 | /***************** |
3863 | * 4. Read EEPROM | |
3864 | *****************/ | |
316c30d9 AK |
3865 | /* Read the EEPROM */ |
3866 | err = iwl_eeprom_init(priv); | |
3867 | if (err) { | |
3868 | IWL_ERROR("Unable to init EEPROM\n"); | |
3869 | goto out_iounmap; | |
3870 | } | |
8614f360 TW |
3871 | err = iwl_eeprom_check_version(priv); |
3872 | if (err) | |
3873 | goto out_iounmap; | |
3874 | ||
02883017 | 3875 | /* extract MAC Address */ |
316c30d9 | 3876 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
e174961c | 3877 | IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr); |
316c30d9 AK |
3878 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
3879 | ||
3880 | /************************ | |
3881 | * 5. Setup HW constants | |
3882 | ************************/ | |
da154e30 | 3883 | if (iwl_set_hw_params(priv)) { |
5425e490 | 3884 | IWL_ERROR("failed to set hw parameters\n"); |
073d3f5f | 3885 | goto out_free_eeprom; |
316c30d9 AK |
3886 | } |
3887 | ||
3888 | /******************* | |
6ba87956 | 3889 | * 6. Setup priv |
316c30d9 | 3890 | *******************/ |
b481de9c | 3891 | |
6ba87956 | 3892 | err = iwl_init_drv(priv); |
bf85ea4f | 3893 | if (err) |
399f4900 | 3894 | goto out_free_eeprom; |
bf85ea4f | 3895 | /* At this point both hw and priv are initialized. */ |
316c30d9 AK |
3896 | |
3897 | /********************************** | |
3898 | * 7. Initialize module parameters | |
3899 | **********************************/ | |
3900 | ||
3901 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
1ea87396 | 3902 | if (priv->cfg->mod_params->disable) { |
316c30d9 AK |
3903 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
3904 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
3905 | } | |
3906 | ||
316c30d9 AK |
3907 | /******************** |
3908 | * 8. Setup services | |
3909 | ********************/ | |
0359facc | 3910 | spin_lock_irqsave(&priv->lock, flags); |
5b9f8cd3 | 3911 | iwl_disable_interrupts(priv); |
0359facc | 3912 | spin_unlock_irqrestore(&priv->lock, flags); |
316c30d9 | 3913 | |
5b9f8cd3 | 3914 | err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group); |
316c30d9 AK |
3915 | if (err) { |
3916 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
6ba87956 | 3917 | goto out_uninit_drv; |
316c30d9 AK |
3918 | } |
3919 | ||
316c30d9 | 3920 | |
4e39317d | 3921 | iwl_setup_deferred_work(priv); |
653fa4a0 | 3922 | iwl_setup_rx_handlers(priv); |
316c30d9 AK |
3923 | |
3924 | /******************** | |
3925 | * 9. Conclude | |
3926 | ********************/ | |
5a66926a ZY |
3927 | pci_save_state(pdev); |
3928 | pci_disable_device(pdev); | |
b481de9c | 3929 | |
6ba87956 TW |
3930 | /********************************** |
3931 | * 10. Setup and register mac80211 | |
3932 | **********************************/ | |
3933 | ||
3934 | err = iwl_setup_mac(priv); | |
3935 | if (err) | |
3936 | goto out_remove_sysfs; | |
3937 | ||
3938 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
3939 | if (err) | |
3940 | IWL_ERROR("failed to create debugfs files\n"); | |
3941 | ||
58d0f361 EG |
3942 | err = iwl_rfkill_init(priv); |
3943 | if (err) | |
3944 | IWL_ERROR("Unable to initialize RFKILL system. " | |
3945 | "Ignoring error: %d\n", err); | |
3946 | iwl_power_initialize(priv); | |
b481de9c ZY |
3947 | return 0; |
3948 | ||
316c30d9 | 3949 | out_remove_sysfs: |
5b9f8cd3 | 3950 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
6ba87956 TW |
3951 | out_uninit_drv: |
3952 | iwl_uninit_drv(priv); | |
073d3f5f TW |
3953 | out_free_eeprom: |
3954 | iwl_eeprom_free(priv); | |
b481de9c ZY |
3955 | out_iounmap: |
3956 | pci_iounmap(pdev, priv->hw_base); | |
3957 | out_pci_release_regions: | |
3958 | pci_release_regions(pdev); | |
316c30d9 | 3959 | pci_set_drvdata(pdev, NULL); |
b481de9c ZY |
3960 | out_pci_disable_device: |
3961 | pci_disable_device(pdev); | |
b481de9c ZY |
3962 | out_ieee80211_free_hw: |
3963 | ieee80211_free_hw(priv->hw); | |
3964 | out: | |
3965 | return err; | |
3966 | } | |
3967 | ||
5b9f8cd3 | 3968 | static void __devexit iwl_pci_remove(struct pci_dev *pdev) |
b481de9c | 3969 | { |
c79dd5b5 | 3970 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
0359facc | 3971 | unsigned long flags; |
b481de9c ZY |
3972 | |
3973 | if (!priv) | |
3974 | return; | |
3975 | ||
3976 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
3977 | ||
67249625 | 3978 | iwl_dbgfs_unregister(priv); |
5b9f8cd3 | 3979 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
67249625 | 3980 | |
5b9f8cd3 EG |
3981 | /* ieee80211_unregister_hw call wil cause iwl_mac_stop to |
3982 | * to be called and iwl_down since we are removing the device | |
0b124c31 GG |
3983 | * we need to set STATUS_EXIT_PENDING bit. |
3984 | */ | |
3985 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
c4f55232 RR |
3986 | if (priv->mac80211_registered) { |
3987 | ieee80211_unregister_hw(priv->hw); | |
3988 | priv->mac80211_registered = 0; | |
0b124c31 | 3989 | } else { |
5b9f8cd3 | 3990 | iwl_down(priv); |
c4f55232 RR |
3991 | } |
3992 | ||
0359facc MA |
3993 | /* make sure we flush any pending irq or |
3994 | * tasklet for the driver | |
3995 | */ | |
3996 | spin_lock_irqsave(&priv->lock, flags); | |
5b9f8cd3 | 3997 | iwl_disable_interrupts(priv); |
0359facc MA |
3998 | spin_unlock_irqrestore(&priv->lock, flags); |
3999 | ||
4000 | iwl_synchronize_irq(priv); | |
4001 | ||
58d0f361 | 4002 | iwl_rfkill_unregister(priv); |
5b9f8cd3 | 4003 | iwl_dealloc_ucode_pci(priv); |
b481de9c ZY |
4004 | |
4005 | if (priv->rxq.bd) | |
a55360e4 | 4006 | iwl_rx_queue_free(priv, &priv->rxq); |
1053d35f | 4007 | iwl_hw_txq_ctx_free(priv); |
b481de9c | 4008 | |
37deb2a0 | 4009 | iwl_clear_stations_table(priv); |
073d3f5f | 4010 | iwl_eeprom_free(priv); |
b481de9c | 4011 | |
b481de9c | 4012 | |
948c171c MA |
4013 | /*netif_stop_queue(dev); */ |
4014 | flush_workqueue(priv->workqueue); | |
4015 | ||
5b9f8cd3 | 4016 | /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes |
b481de9c ZY |
4017 | * priv->workqueue... so we can't take down the workqueue |
4018 | * until now... */ | |
4019 | destroy_workqueue(priv->workqueue); | |
4020 | priv->workqueue = NULL; | |
4021 | ||
b481de9c ZY |
4022 | pci_iounmap(pdev, priv->hw_base); |
4023 | pci_release_regions(pdev); | |
4024 | pci_disable_device(pdev); | |
4025 | pci_set_drvdata(pdev, NULL); | |
4026 | ||
6ba87956 | 4027 | iwl_uninit_drv(priv); |
b481de9c ZY |
4028 | |
4029 | if (priv->ibss_beacon) | |
4030 | dev_kfree_skb(priv->ibss_beacon); | |
4031 | ||
4032 | ieee80211_free_hw(priv->hw); | |
4033 | } | |
4034 | ||
4035 | #ifdef CONFIG_PM | |
4036 | ||
5b9f8cd3 | 4037 | static int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 4038 | { |
c79dd5b5 | 4039 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 4040 | |
e655b9f0 ZY |
4041 | if (priv->is_open) { |
4042 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
5b9f8cd3 | 4043 | iwl_mac_stop(priv->hw); |
e655b9f0 ZY |
4044 | priv->is_open = 1; |
4045 | } | |
b481de9c | 4046 | |
b481de9c ZY |
4047 | pci_set_power_state(pdev, PCI_D3hot); |
4048 | ||
b481de9c ZY |
4049 | return 0; |
4050 | } | |
4051 | ||
5b9f8cd3 | 4052 | static int iwl_pci_resume(struct pci_dev *pdev) |
b481de9c | 4053 | { |
c79dd5b5 | 4054 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 4055 | |
b481de9c | 4056 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 4057 | |
e655b9f0 | 4058 | if (priv->is_open) |
5b9f8cd3 | 4059 | iwl_mac_start(priv->hw); |
b481de9c | 4060 | |
e655b9f0 | 4061 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
4062 | return 0; |
4063 | } | |
4064 | ||
4065 | #endif /* CONFIG_PM */ | |
4066 | ||
4067 | /***************************************************************************** | |
4068 | * | |
4069 | * driver and module entry point | |
4070 | * | |
4071 | *****************************************************************************/ | |
4072 | ||
fed9017e RR |
4073 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
4074 | static struct pci_device_id iwl_hw_card_ids[] = { | |
4fc22b21 | 4075 | #ifdef CONFIG_IWL4965 |
fed9017e RR |
4076 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, |
4077 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
4fc22b21 | 4078 | #endif /* CONFIG_IWL4965 */ |
5a6a256e | 4079 | #ifdef CONFIG_IWL5000 |
47408639 EK |
4080 | {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)}, |
4081 | {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)}, | |
4082 | {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, | |
4083 | {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, | |
4084 | {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, | |
4085 | {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, | |
5a6a256e | 4086 | {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, |
47408639 EK |
4087 | {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, |
4088 | {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)}, | |
4089 | {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)}, | |
e96a8495 TW |
4090 | /* 5350 WiFi/WiMax */ |
4091 | {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, | |
4092 | {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, | |
4093 | {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, | |
7100e924 TW |
4094 | /* 5150 Wifi/WiMax */ |
4095 | {IWL_PCI_DEVICE(0x423C, PCI_ANY_ID, iwl5150_agn_cfg)}, | |
4096 | {IWL_PCI_DEVICE(0x423D, PCI_ANY_ID, iwl5150_agn_cfg)}, | |
5a6a256e | 4097 | #endif /* CONFIG_IWL5000 */ |
7100e924 | 4098 | |
fed9017e RR |
4099 | {0} |
4100 | }; | |
4101 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); | |
4102 | ||
4103 | static struct pci_driver iwl_driver = { | |
b481de9c | 4104 | .name = DRV_NAME, |
fed9017e | 4105 | .id_table = iwl_hw_card_ids, |
5b9f8cd3 EG |
4106 | .probe = iwl_pci_probe, |
4107 | .remove = __devexit_p(iwl_pci_remove), | |
b481de9c | 4108 | #ifdef CONFIG_PM |
5b9f8cd3 EG |
4109 | .suspend = iwl_pci_suspend, |
4110 | .resume = iwl_pci_resume, | |
b481de9c ZY |
4111 | #endif |
4112 | }; | |
4113 | ||
5b9f8cd3 | 4114 | static int __init iwl_init(void) |
b481de9c ZY |
4115 | { |
4116 | ||
4117 | int ret; | |
4118 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
4119 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 | 4120 | |
e227ceac | 4121 | ret = iwlagn_rate_control_register(); |
897e1cf2 RC |
4122 | if (ret) { |
4123 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
4124 | return ret; | |
4125 | } | |
4126 | ||
fed9017e | 4127 | ret = pci_register_driver(&iwl_driver); |
b481de9c ZY |
4128 | if (ret) { |
4129 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 4130 | goto error_register; |
b481de9c | 4131 | } |
b481de9c ZY |
4132 | |
4133 | return ret; | |
897e1cf2 | 4134 | |
897e1cf2 | 4135 | error_register: |
e227ceac | 4136 | iwlagn_rate_control_unregister(); |
897e1cf2 | 4137 | return ret; |
b481de9c ZY |
4138 | } |
4139 | ||
5b9f8cd3 | 4140 | static void __exit iwl_exit(void) |
b481de9c | 4141 | { |
fed9017e | 4142 | pci_unregister_driver(&iwl_driver); |
e227ceac | 4143 | iwlagn_rate_control_unregister(); |
b481de9c ZY |
4144 | } |
4145 | ||
5b9f8cd3 EG |
4146 | module_exit(iwl_exit); |
4147 | module_init(iwl_init); |