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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
32 | #include <linux/version.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/dma-mapping.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/skbuff.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/wireless.h> | |
40 | #include <linux/firmware.h> | |
b481de9c ZY |
41 | #include <linux/etherdevice.h> |
42 | #include <linux/if_arp.h> | |
43 | ||
b481de9c ZY |
44 | #include <net/mac80211.h> |
45 | ||
46 | #include <asm/div64.h> | |
47 | ||
6bc913bd | 48 | #include "iwl-eeprom.h" |
3e0d4cb1 | 49 | #include "iwl-dev.h" |
fee1247a | 50 | #include "iwl-core.h" |
3395f6e9 | 51 | #include "iwl-io.h" |
b481de9c | 52 | #include "iwl-helpers.h" |
6974e363 | 53 | #include "iwl-sta.h" |
f0832f13 | 54 | #include "iwl-calib.h" |
b481de9c | 55 | |
416e1438 | 56 | |
b481de9c ZY |
57 | /****************************************************************************** |
58 | * | |
59 | * module boiler plate | |
60 | * | |
61 | ******************************************************************************/ | |
62 | ||
b481de9c ZY |
63 | /* |
64 | * module name, copyright, version, etc. | |
65 | * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk | |
66 | */ | |
67 | ||
68 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux" | |
69 | ||
0a6857e7 | 70 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
71 | #define VD "d" |
72 | #else | |
73 | #define VD | |
74 | #endif | |
75 | ||
c8b0e6e1 | 76 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
77 | #define VS "s" |
78 | #else | |
79 | #define VS | |
80 | #endif | |
81 | ||
df48c323 | 82 | #define DRV_VERSION IWLWIFI_VERSION VD VS |
b481de9c | 83 | |
b481de9c ZY |
84 | |
85 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
86 | MODULE_VERSION(DRV_VERSION); | |
87 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
88 | MODULE_LICENSE("GPL"); | |
89 | ||
d1141dfb | 90 | static const struct ieee80211_supported_band *iwl_get_hw_mode( |
c79dd5b5 | 91 | struct iwl_priv *priv, enum ieee80211_band band) |
b481de9c | 92 | { |
8318d78a | 93 | return priv->hw->wiphy->bands[band]; |
b481de9c ZY |
94 | } |
95 | ||
bb8c093b | 96 | static int iwl4965_is_empty_essid(const char *essid, int essid_len) |
b481de9c ZY |
97 | { |
98 | /* Single white space is for Linksys APs */ | |
99 | if (essid_len == 1 && essid[0] == ' ') | |
100 | return 1; | |
101 | ||
102 | /* Otherwise, if the entire essid is 0, we assume it is hidden */ | |
103 | while (essid_len) { | |
104 | essid_len--; | |
105 | if (essid[essid_len] != '\0') | |
106 | return 0; | |
107 | } | |
108 | ||
109 | return 1; | |
110 | } | |
111 | ||
bb8c093b | 112 | static const char *iwl4965_escape_essid(const char *essid, u8 essid_len) |
b481de9c ZY |
113 | { |
114 | static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; | |
115 | const char *s = essid; | |
116 | char *d = escaped; | |
117 | ||
bb8c093b | 118 | if (iwl4965_is_empty_essid(essid, essid_len)) { |
b481de9c ZY |
119 | memcpy(escaped, "<hidden>", sizeof("<hidden>")); |
120 | return escaped; | |
121 | } | |
122 | ||
123 | essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); | |
124 | while (essid_len--) { | |
125 | if (*s == '\0') { | |
126 | *d++ = '\\'; | |
127 | *d++ = '0'; | |
128 | s++; | |
129 | } else | |
130 | *d++ = *s++; | |
131 | } | |
132 | *d = '\0'; | |
133 | return escaped; | |
134 | } | |
135 | ||
b481de9c | 136 | /*************** STATION TABLE MANAGEMENT **** |
9fbab516 | 137 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
138 | * the functionality provided here |
139 | */ | |
140 | ||
141 | /**************************************************************/ | |
142 | ||
b481de9c | 143 | |
b481de9c | 144 | |
deb09c43 EG |
145 | static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
146 | { | |
c1adf9fb | 147 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
deb09c43 EG |
148 | |
149 | if (hw_decrypt) | |
150 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
151 | else | |
152 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
153 | ||
154 | } | |
155 | ||
b481de9c | 156 | /** |
bb8c093b | 157 | * iwl4965_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
158 | * |
159 | * NOTE: This is really only useful during development and can eventually | |
160 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
161 | * making changes | |
162 | */ | |
c1adf9fb | 163 | static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon) |
b481de9c ZY |
164 | { |
165 | int error = 0; | |
166 | int counter = 1; | |
167 | ||
168 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
169 | error |= le32_to_cpu(rxon->flags & | |
170 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
171 | RXON_FLG_RADAR_DETECT_MSK)); | |
172 | if (error) | |
173 | IWL_WARNING("check 24G fields %d | %d\n", | |
174 | counter++, error); | |
175 | } else { | |
176 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
177 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
178 | if (error) | |
179 | IWL_WARNING("check 52 fields %d | %d\n", | |
180 | counter++, error); | |
181 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
182 | if (error) | |
183 | IWL_WARNING("check 52 CCK %d | %d\n", | |
184 | counter++, error); | |
185 | } | |
186 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
187 | if (error) | |
188 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
189 | ||
190 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
191 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
192 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
193 | if (error) | |
194 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
195 | ||
196 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
197 | if (error) | |
198 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
199 | ||
200 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
201 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
202 | if (error) | |
203 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
204 | counter++, error); | |
205 | ||
206 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
207 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
208 | if (error) | |
209 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
210 | counter++, error); | |
211 | ||
212 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
213 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
214 | if (error) | |
215 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
216 | counter++, error); | |
217 | ||
218 | if (error) | |
219 | IWL_WARNING("Tuning to channel %d\n", | |
220 | le16_to_cpu(rxon->channel)); | |
221 | ||
222 | if (error) { | |
bb8c093b | 223 | IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
224 | return -1; |
225 | } | |
226 | return 0; | |
227 | } | |
228 | ||
229 | /** | |
9fbab516 | 230 | * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 231 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 232 | * |
9fbab516 BC |
233 | * If the RXON structure is changing enough to require a new tune, |
234 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
235 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 236 | */ |
c79dd5b5 | 237 | static int iwl4965_full_rxon_required(struct iwl_priv *priv) |
b481de9c ZY |
238 | { |
239 | ||
240 | /* These items are only settable from the full RXON command */ | |
241 | if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) || | |
242 | compare_ether_addr(priv->staging_rxon.bssid_addr, | |
243 | priv->active_rxon.bssid_addr) || | |
244 | compare_ether_addr(priv->staging_rxon.node_addr, | |
245 | priv->active_rxon.node_addr) || | |
246 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
247 | priv->active_rxon.wlap_bssid_addr) || | |
248 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
249 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
250 | (priv->staging_rxon.air_propagation != | |
251 | priv->active_rxon.air_propagation) || | |
252 | (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != | |
253 | priv->active_rxon.ofdm_ht_single_stream_basic_rates) || | |
254 | (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != | |
255 | priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || | |
256 | (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) || | |
257 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
258 | return 1; | |
259 | ||
260 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
261 | * be updated with the RXON_ASSOC command -- however only some | |
262 | * flag transitions are allowed using RXON_ASSOC */ | |
263 | ||
264 | /* Check if we are not switching bands */ | |
265 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
266 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
267 | return 1; | |
268 | ||
269 | /* Check if we are switching association toggle */ | |
270 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
271 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
272 | return 1; | |
273 | ||
274 | return 0; | |
275 | } | |
276 | ||
b481de9c | 277 | /** |
bb8c093b | 278 | * iwl4965_commit_rxon - commit staging_rxon to hardware |
b481de9c | 279 | * |
01ebd063 | 280 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
281 | * the active_rxon structure is updated with the new data. This |
282 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
283 | * a HW tune is required based on the RXON structure changes. | |
284 | */ | |
c79dd5b5 | 285 | static int iwl4965_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
286 | { |
287 | /* cast away the const for active_rxon in this function */ | |
c1adf9fb | 288 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
0795af57 | 289 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
290 | int rc = 0; |
291 | ||
fee1247a | 292 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
293 | return -1; |
294 | ||
295 | /* always get timestamp with Rx frame */ | |
296 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
297 | ||
bb8c093b | 298 | rc = iwl4965_check_rxon_cmd(&priv->staging_rxon); |
b481de9c ZY |
299 | if (rc) { |
300 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); | |
301 | return -EINVAL; | |
302 | } | |
303 | ||
304 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 305 | * iwl4965_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 306 | * and other flags for the current radio configuration. */ |
bb8c093b | 307 | if (!iwl4965_full_rxon_required(priv)) { |
7e8c519e | 308 | rc = iwl_send_rxon_assoc(priv); |
b481de9c ZY |
309 | if (rc) { |
310 | IWL_ERROR("Error setting RXON_ASSOC " | |
311 | "configuration (%d).\n", rc); | |
312 | return rc; | |
313 | } | |
314 | ||
315 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
316 | ||
317 | return 0; | |
318 | } | |
319 | ||
320 | /* station table will be cleared */ | |
321 | priv->assoc_station_added = 0; | |
322 | ||
b481de9c ZY |
323 | /* If we are currently associated and the new config requires |
324 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
325 | * we must clear the associated from the active configuration | |
326 | * before we apply the new config */ | |
3109ece1 | 327 | if (iwl_is_associated(priv) && |
b481de9c ZY |
328 | (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) { |
329 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); | |
330 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
331 | ||
857485c0 | 332 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 333 | sizeof(struct iwl_rxon_cmd), |
b481de9c ZY |
334 | &priv->active_rxon); |
335 | ||
336 | /* If the mask clearing failed then we set | |
337 | * active_rxon back to what it was previously */ | |
338 | if (rc) { | |
339 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
340 | IWL_ERROR("Error clearing ASSOC_MSK on current " | |
341 | "configuration (%d).\n", rc); | |
342 | return rc; | |
343 | } | |
b481de9c ZY |
344 | } |
345 | ||
346 | IWL_DEBUG_INFO("Sending RXON\n" | |
347 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
348 | "* channel = %d\n" | |
0795af57 | 349 | "* bssid = %s\n", |
b481de9c ZY |
350 | ((priv->staging_rxon.filter_flags & |
351 | RXON_FILTER_ASSOC_MSK) ? "" : "out"), | |
352 | le16_to_cpu(priv->staging_rxon.channel), | |
0795af57 | 353 | print_mac(mac, priv->staging_rxon.bssid_addr)); |
b481de9c | 354 | |
099b40b7 | 355 | iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
b481de9c | 356 | /* Apply the new configuration */ |
857485c0 | 357 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 358 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
b481de9c ZY |
359 | if (rc) { |
360 | IWL_ERROR("Error setting new configuration (%d).\n", rc); | |
361 | return rc; | |
362 | } | |
363 | ||
7a999bf0 | 364 | iwl_remove_station(priv, iwl_bcast_addr, 0); |
bf85ea4f | 365 | iwlcore_clear_stations_table(priv); |
556f8db7 | 366 | |
b481de9c ZY |
367 | if (!priv->error_recovering) |
368 | priv->start_calib = 0; | |
369 | ||
f0832f13 | 370 | iwl_init_sensitivity(priv); |
b481de9c ZY |
371 | |
372 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
373 | ||
374 | /* If we issue a new RXON command which required a tune then we must | |
375 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
bb8c093b | 376 | rc = iwl4965_hw_reg_send_txpower(priv); |
b481de9c ZY |
377 | if (rc) { |
378 | IWL_ERROR("Error setting Tx power (%d).\n", rc); | |
379 | return rc; | |
380 | } | |
381 | ||
382 | /* Add the broadcast address so we can send broadcast frames */ | |
4f40e4d9 | 383 | if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == |
b481de9c ZY |
384 | IWL_INVALID_STATION) { |
385 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); | |
386 | return -EIO; | |
387 | } | |
388 | ||
389 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
390 | * add the IWL_AP_ID to the station rate table */ | |
3109ece1 | 391 | if (iwl_is_associated(priv) && |
b481de9c | 392 | (priv->iw_mode == IEEE80211_IF_TYPE_STA)) { |
4f40e4d9 | 393 | if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1) |
b481de9c ZY |
394 | == IWL_INVALID_STATION) { |
395 | IWL_ERROR("Error adding AP address for transmit.\n"); | |
396 | return -EIO; | |
397 | } | |
398 | priv->assoc_station_added = 1; | |
6974e363 EG |
399 | if (priv->default_wep_key && |
400 | iwl_send_static_wepkey_cmd(priv, 0)) | |
401 | IWL_ERROR("Could not send WEP static key.\n"); | |
b481de9c ZY |
402 | } |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
5da4b55f MA |
407 | void iwl4965_update_chain_flags(struct iwl_priv *priv) |
408 | { | |
409 | ||
c7de35cd | 410 | iwl_set_rxon_chain(priv); |
5da4b55f MA |
411 | iwl4965_commit_rxon(priv); |
412 | } | |
413 | ||
c79dd5b5 | 414 | static int iwl4965_send_bt_config(struct iwl_priv *priv) |
b481de9c | 415 | { |
bb8c093b | 416 | struct iwl4965_bt_cmd bt_cmd = { |
b481de9c ZY |
417 | .flags = 3, |
418 | .lead_time = 0xAA, | |
419 | .max_kill = 1, | |
420 | .kill_ack_mask = 0, | |
421 | .kill_cts_mask = 0, | |
422 | }; | |
423 | ||
857485c0 | 424 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
bb8c093b | 425 | sizeof(struct iwl4965_bt_cmd), &bt_cmd); |
b481de9c ZY |
426 | } |
427 | ||
c79dd5b5 | 428 | static int iwl4965_send_scan_abort(struct iwl_priv *priv) |
b481de9c | 429 | { |
db11d634 TW |
430 | int ret = 0; |
431 | struct iwl_rx_packet *res; | |
857485c0 | 432 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
433 | .id = REPLY_SCAN_ABORT_CMD, |
434 | .meta.flags = CMD_WANT_SKB, | |
435 | }; | |
436 | ||
437 | /* If there isn't a scan actively going on in the hardware | |
438 | * then we are in between scan bands and not actually | |
439 | * actively scanning, so don't send the abort command */ | |
440 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
441 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
442 | return 0; | |
443 | } | |
444 | ||
db11d634 TW |
445 | ret = iwl_send_cmd_sync(priv, &cmd); |
446 | if (ret) { | |
b481de9c | 447 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); |
db11d634 | 448 | return ret; |
b481de9c ZY |
449 | } |
450 | ||
db11d634 | 451 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
452 | if (res->u.status != CAN_ABORT_STATUS) { |
453 | /* The scan abort will return 1 for success or | |
454 | * 2 for "failure". A failure condition can be | |
455 | * due to simply not being in an active scan which | |
456 | * can occur if we send the scan abort before we | |
457 | * the microcode has notified us that a scan is | |
458 | * completed. */ | |
459 | IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); | |
460 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
461 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
462 | } | |
463 | ||
464 | dev_kfree_skb_any(cmd.meta.u.skb); | |
465 | ||
db11d634 | 466 | return ret; |
b481de9c ZY |
467 | } |
468 | ||
b481de9c ZY |
469 | /* |
470 | * CARD_STATE_CMD | |
471 | * | |
9fbab516 | 472 | * Use: Sets the device's internal card state to enable, disable, or halt |
b481de9c ZY |
473 | * |
474 | * When in the 'enable' state the card operates as normal. | |
475 | * When in the 'disable' state, the card enters into a low power mode. | |
476 | * When in the 'halt' state, the card is shut down and must be fully | |
477 | * restarted to come back on. | |
478 | */ | |
c79dd5b5 | 479 | static int iwl4965_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) |
b481de9c | 480 | { |
857485c0 | 481 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
482 | .id = REPLY_CARD_STATE_CMD, |
483 | .len = sizeof(u32), | |
484 | .data = &flags, | |
485 | .meta.flags = meta_flag, | |
486 | }; | |
487 | ||
857485c0 | 488 | return iwl_send_cmd(priv, &cmd); |
b481de9c ZY |
489 | } |
490 | ||
fcab423d | 491 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
492 | { |
493 | struct list_head *element; | |
494 | ||
495 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
496 | priv->frames_count); | |
497 | ||
498 | while (!list_empty(&priv->free_frames)) { | |
499 | element = priv->free_frames.next; | |
500 | list_del(element); | |
fcab423d | 501 | kfree(list_entry(element, struct iwl_frame, list)); |
b481de9c ZY |
502 | priv->frames_count--; |
503 | } | |
504 | ||
505 | if (priv->frames_count) { | |
506 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
507 | priv->frames_count); | |
508 | priv->frames_count = 0; | |
509 | } | |
510 | } | |
511 | ||
fcab423d | 512 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
b481de9c | 513 | { |
fcab423d | 514 | struct iwl_frame *frame; |
b481de9c ZY |
515 | struct list_head *element; |
516 | if (list_empty(&priv->free_frames)) { | |
517 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
518 | if (!frame) { | |
519 | IWL_ERROR("Could not allocate frame!\n"); | |
520 | return NULL; | |
521 | } | |
522 | ||
523 | priv->frames_count++; | |
524 | return frame; | |
525 | } | |
526 | ||
527 | element = priv->free_frames.next; | |
528 | list_del(element); | |
fcab423d | 529 | return list_entry(element, struct iwl_frame, list); |
b481de9c ZY |
530 | } |
531 | ||
fcab423d | 532 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
b481de9c ZY |
533 | { |
534 | memset(frame, 0, sizeof(*frame)); | |
535 | list_add(&frame->list, &priv->free_frames); | |
536 | } | |
537 | ||
c79dd5b5 | 538 | unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv, |
b481de9c ZY |
539 | struct ieee80211_hdr *hdr, |
540 | const u8 *dest, int left) | |
541 | { | |
542 | ||
3109ece1 | 543 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
b481de9c ZY |
544 | ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) && |
545 | (priv->iw_mode != IEEE80211_IF_TYPE_AP))) | |
546 | return 0; | |
547 | ||
548 | if (priv->ibss_beacon->len > left) | |
549 | return 0; | |
550 | ||
551 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
552 | ||
553 | return priv->ibss_beacon->len; | |
554 | } | |
555 | ||
39e88504 | 556 | static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv) |
b481de9c | 557 | { |
39e88504 GC |
558 | int i; |
559 | int rate_mask; | |
560 | ||
561 | /* Set rate mask*/ | |
562 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
563 | rate_mask = priv->active_rate_basic & 0xF; | |
564 | else | |
565 | rate_mask = priv->active_rate_basic & 0xFF0; | |
b481de9c | 566 | |
39e88504 | 567 | /* Find lowest valid rate */ |
b481de9c | 568 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; |
1826dcc0 | 569 | i = iwl_rates[i].next_ieee) { |
b481de9c | 570 | if (rate_mask & (1 << i)) |
1826dcc0 | 571 | return iwl_rates[i].plcp; |
b481de9c ZY |
572 | } |
573 | ||
39e88504 GC |
574 | /* No valid rate was found. Assign the lowest one */ |
575 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
576 | return IWL_RATE_1M_PLCP; | |
577 | else | |
578 | return IWL_RATE_6M_PLCP; | |
b481de9c ZY |
579 | } |
580 | ||
c79dd5b5 | 581 | static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 582 | { |
fcab423d | 583 | struct iwl_frame *frame; |
b481de9c ZY |
584 | unsigned int frame_size; |
585 | int rc; | |
586 | u8 rate; | |
587 | ||
fcab423d | 588 | frame = iwl_get_free_frame(priv); |
b481de9c ZY |
589 | |
590 | if (!frame) { | |
591 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
592 | "command.\n"); | |
593 | return -ENOMEM; | |
594 | } | |
595 | ||
39e88504 | 596 | rate = iwl4965_rate_get_lowest_plcp(priv); |
b481de9c | 597 | |
bb8c093b | 598 | frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 599 | |
857485c0 | 600 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
601 | &frame->u.cmd[0]); |
602 | ||
fcab423d | 603 | iwl_free_frame(priv, frame); |
b481de9c ZY |
604 | |
605 | return rc; | |
606 | } | |
607 | ||
b481de9c ZY |
608 | /****************************************************************************** |
609 | * | |
610 | * Misc. internal state and helper functions | |
611 | * | |
612 | ******************************************************************************/ | |
b481de9c | 613 | |
b481de9c | 614 | /** |
bb8c093b | 615 | * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
616 | * |
617 | * return : set the bit for each supported rate insert in ie | |
618 | */ | |
bb8c093b | 619 | static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 620 | u16 basic_rate, int *left) |
b481de9c ZY |
621 | { |
622 | u16 ret_rates = 0, bit; | |
623 | int i; | |
c7c46676 TW |
624 | u8 *cnt = ie; |
625 | u8 *rates = ie + 1; | |
b481de9c ZY |
626 | |
627 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
628 | if (bit & supported_rate) { | |
629 | ret_rates |= bit; | |
1826dcc0 | 630 | rates[*cnt] = iwl_rates[i].ieee | |
c7c46676 TW |
631 | ((bit & basic_rate) ? 0x80 : 0x00); |
632 | (*cnt)++; | |
633 | (*left)--; | |
634 | if ((*left <= 0) || | |
635 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
636 | break; |
637 | } | |
638 | } | |
639 | ||
640 | return ret_rates; | |
641 | } | |
642 | ||
d1141dfb EG |
643 | #ifdef CONFIG_IWL4965_HT |
644 | static void iwl4965_ht_conf(struct iwl_priv *priv, | |
645 | struct ieee80211_bss_conf *bss_conf) | |
646 | { | |
647 | struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf; | |
648 | struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf; | |
649 | struct iwl_ht_info *iwl_conf = &priv->current_ht_config; | |
650 | ||
651 | IWL_DEBUG_MAC80211("enter: \n"); | |
652 | ||
653 | iwl_conf->is_ht = bss_conf->assoc_ht; | |
654 | ||
655 | if (!iwl_conf->is_ht) | |
656 | return; | |
657 | ||
658 | priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
659 | ||
660 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) | |
a9841013 | 661 | iwl_conf->sgf |= HT_SHORT_GI_20MHZ; |
d1141dfb | 662 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) |
a9841013 | 663 | iwl_conf->sgf |= HT_SHORT_GI_40MHZ; |
d1141dfb EG |
664 | |
665 | iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); | |
666 | iwl_conf->max_amsdu_size = | |
667 | !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); | |
668 | ||
669 | iwl_conf->supported_chan_width = | |
670 | !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH); | |
671 | iwl_conf->extension_chan_offset = | |
672 | ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET; | |
673 | /* If no above or below channel supplied disable FAT channel */ | |
674 | if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE && | |
675 | iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW) | |
676 | iwl_conf->supported_chan_width = 0; | |
677 | ||
678 | iwl_conf->tx_mimo_ps_mode = | |
679 | (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
680 | memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16); | |
681 | ||
682 | iwl_conf->control_channel = ht_bss_conf->primary_channel; | |
683 | iwl_conf->tx_chan_width = | |
684 | !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH); | |
685 | iwl_conf->ht_protection = | |
686 | ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION; | |
687 | iwl_conf->non_GF_STA_present = | |
688 | !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT); | |
689 | ||
690 | IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel); | |
691 | IWL_DEBUG_MAC80211("leave\n"); | |
692 | } | |
693 | ||
694 | static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, | |
695 | u8 *pos, int *left) | |
696 | { | |
697 | struct ieee80211_ht_cap *ht_cap; | |
698 | ||
699 | if (!sband || !sband->ht_info.ht_supported) | |
700 | return; | |
701 | ||
702 | if (*left < sizeof(struct ieee80211_ht_cap)) | |
703 | return; | |
704 | ||
705 | *pos++ = sizeof(struct ieee80211_ht_cap); | |
706 | ht_cap = (struct ieee80211_ht_cap *) pos; | |
707 | ||
708 | ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap); | |
709 | memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16); | |
710 | ht_cap->ampdu_params_info = | |
711 | (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) | | |
712 | ((sband->ht_info.ampdu_density << 2) & | |
713 | IEEE80211_HT_CAP_AMPDU_DENSITY); | |
714 | *left -= sizeof(struct ieee80211_ht_cap); | |
715 | } | |
716 | #else | |
717 | static inline void iwl4965_ht_conf(struct iwl_priv *priv, | |
718 | struct ieee80211_bss_conf *bss_conf) | |
719 | { | |
720 | } | |
721 | static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, | |
722 | u8 *pos, int *left) | |
723 | { | |
724 | } | |
725 | #endif | |
726 | ||
727 | ||
b481de9c | 728 | /** |
bb8c093b | 729 | * iwl4965_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 730 | */ |
c79dd5b5 | 731 | static u16 iwl4965_fill_probe_req(struct iwl_priv *priv, |
78330fdd TW |
732 | enum ieee80211_band band, |
733 | struct ieee80211_mgmt *frame, | |
734 | int left, int is_direct) | |
b481de9c ZY |
735 | { |
736 | int len = 0; | |
737 | u8 *pos = NULL; | |
bee488db | 738 | u16 active_rates, ret_rates, cck_rates, active_rate_basic; |
78330fdd | 739 | const struct ieee80211_supported_band *sband = |
d1141dfb | 740 | iwl_get_hw_mode(priv, band); |
b481de9c ZY |
741 | |
742 | /* Make sure there is enough space for the probe request, | |
743 | * two mandatory IEs and the data */ | |
744 | left -= 24; | |
745 | if (left < 0) | |
746 | return 0; | |
747 | len += 24; | |
748 | ||
749 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
57bd1bea | 750 | memcpy(frame->da, iwl_bcast_addr, ETH_ALEN); |
b481de9c | 751 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
57bd1bea | 752 | memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN); |
b481de9c ZY |
753 | frame->seq_ctrl = 0; |
754 | ||
755 | /* fill in our indirect SSID IE */ | |
756 | /* ...next IE... */ | |
757 | ||
758 | left -= 2; | |
759 | if (left < 0) | |
760 | return 0; | |
761 | len += 2; | |
762 | pos = &(frame->u.probe_req.variable[0]); | |
763 | *pos++ = WLAN_EID_SSID; | |
764 | *pos++ = 0; | |
765 | ||
766 | /* fill in our direct SSID IE... */ | |
767 | if (is_direct) { | |
768 | /* ...next IE... */ | |
769 | left -= 2 + priv->essid_len; | |
770 | if (left < 0) | |
771 | return 0; | |
772 | /* ... fill it in... */ | |
773 | *pos++ = WLAN_EID_SSID; | |
774 | *pos++ = priv->essid_len; | |
775 | memcpy(pos, priv->essid, priv->essid_len); | |
776 | pos += priv->essid_len; | |
777 | len += 2 + priv->essid_len; | |
778 | } | |
779 | ||
780 | /* fill in supported rate */ | |
781 | /* ...next IE... */ | |
782 | left -= 2; | |
783 | if (left < 0) | |
784 | return 0; | |
c7c46676 | 785 | |
b481de9c ZY |
786 | /* ... fill it in... */ |
787 | *pos++ = WLAN_EID_SUPP_RATES; | |
788 | *pos = 0; | |
c7c46676 | 789 | |
bee488db | 790 | /* exclude 60M rate */ |
791 | active_rates = priv->rates_mask; | |
792 | active_rates &= ~IWL_RATE_60M_MASK; | |
793 | ||
794 | active_rate_basic = active_rates & IWL_BASIC_RATES_MASK; | |
b481de9c | 795 | |
c7c46676 | 796 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 797 | ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates, |
bee488db | 798 | active_rate_basic, &left); |
c7c46676 TW |
799 | active_rates &= ~ret_rates; |
800 | ||
bb8c093b | 801 | ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates, |
bee488db | 802 | active_rate_basic, &left); |
c7c46676 TW |
803 | active_rates &= ~ret_rates; |
804 | ||
b481de9c ZY |
805 | len += 2 + *pos; |
806 | pos += (*pos) + 1; | |
c7c46676 | 807 | if (active_rates == 0) |
b481de9c ZY |
808 | goto fill_end; |
809 | ||
810 | /* fill in supported extended rate */ | |
811 | /* ...next IE... */ | |
812 | left -= 2; | |
813 | if (left < 0) | |
814 | return 0; | |
815 | /* ... fill it in... */ | |
816 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
817 | *pos = 0; | |
bb8c093b | 818 | iwl4965_supported_rate_to_ie(pos, active_rates, |
bee488db | 819 | active_rate_basic, &left); |
b481de9c ZY |
820 | if (*pos > 0) |
821 | len += 2 + *pos; | |
822 | ||
b481de9c | 823 | fill_end: |
d1141dfb EG |
824 | /* fill in HT IE */ |
825 | left -= 2; | |
826 | if (left < 0) | |
827 | return 0; | |
828 | ||
829 | *pos++ = WLAN_EID_HT_CAPABILITY; | |
830 | *pos = 0; | |
831 | ||
832 | iwl_ht_cap_to_ie(sband, pos, &left); | |
833 | ||
834 | if (*pos > 0) | |
835 | len += 2 + *pos; | |
b481de9c ZY |
836 | return (u16)len; |
837 | } | |
838 | ||
839 | /* | |
840 | * QoS support | |
841 | */ | |
c79dd5b5 | 842 | static int iwl4965_send_qos_params_command(struct iwl_priv *priv, |
bb8c093b | 843 | struct iwl4965_qosparam_cmd *qos) |
b481de9c ZY |
844 | { |
845 | ||
857485c0 | 846 | return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
bb8c093b | 847 | sizeof(struct iwl4965_qosparam_cmd), qos); |
b481de9c ZY |
848 | } |
849 | ||
c79dd5b5 | 850 | static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force) |
b481de9c ZY |
851 | { |
852 | unsigned long flags; | |
853 | ||
b481de9c ZY |
854 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
855 | return; | |
856 | ||
857 | if (!priv->qos_data.qos_enable) | |
858 | return; | |
859 | ||
860 | spin_lock_irqsave(&priv->lock, flags); | |
861 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
862 | ||
863 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
864 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
865 | priv->qos_data.def_qos_parm.qos_flags |= | |
866 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
b481de9c ZY |
867 | if (priv->qos_data.qos_active) |
868 | priv->qos_data.def_qos_parm.qos_flags |= | |
869 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
870 | ||
c8b0e6e1 | 871 | #ifdef CONFIG_IWL4965_HT |
fd105e79 | 872 | if (priv->current_ht_config.is_ht) |
f1f1f5c7 | 873 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
c8b0e6e1 | 874 | #endif /* CONFIG_IWL4965_HT */ |
f1f1f5c7 | 875 | |
b481de9c ZY |
876 | spin_unlock_irqrestore(&priv->lock, flags); |
877 | ||
3109ece1 | 878 | if (force || iwl_is_associated(priv)) { |
f1f1f5c7 TW |
879 | IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
880 | priv->qos_data.qos_active, | |
881 | priv->qos_data.def_qos_parm.qos_flags); | |
b481de9c | 882 | |
bb8c093b | 883 | iwl4965_send_qos_params_command(priv, |
b481de9c ZY |
884 | &(priv->qos_data.def_qos_parm)); |
885 | } | |
886 | } | |
887 | ||
c79dd5b5 | 888 | int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
889 | { |
890 | /* Filter incoming packets to determine if they are targeted toward | |
891 | * this network, discarding packets coming from ourselves */ | |
892 | switch (priv->iw_mode) { | |
893 | case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */ | |
894 | /* packets from our adapter are dropped (echo) */ | |
895 | if (!compare_ether_addr(header->addr2, priv->mac_addr)) | |
896 | return 0; | |
897 | /* {broad,multi}cast packets to our IBSS go through */ | |
898 | if (is_multicast_ether_addr(header->addr1)) | |
899 | return !compare_ether_addr(header->addr3, priv->bssid); | |
900 | /* packets to our adapter go through */ | |
901 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
902 | case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */ | |
903 | /* packets from our adapter are dropped (echo) */ | |
904 | if (!compare_ether_addr(header->addr3, priv->mac_addr)) | |
905 | return 0; | |
906 | /* {broad,multi}cast packets to our BSS go through */ | |
907 | if (is_multicast_ether_addr(header->addr1)) | |
908 | return !compare_ether_addr(header->addr2, priv->bssid); | |
909 | /* packets to our adapter go through */ | |
910 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
69dc5d9d TW |
911 | default: |
912 | break; | |
b481de9c ZY |
913 | } |
914 | ||
915 | return 1; | |
916 | } | |
917 | ||
b481de9c | 918 | |
b481de9c ZY |
919 | |
920 | /** | |
bb8c093b | 921 | * iwl4965_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
922 | * |
923 | * NOTE: priv->mutex is not required before calling this function | |
924 | */ | |
c79dd5b5 | 925 | static int iwl4965_scan_cancel(struct iwl_priv *priv) |
b481de9c ZY |
926 | { |
927 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
928 | clear_bit(STATUS_SCANNING, &priv->status); | |
929 | return 0; | |
930 | } | |
931 | ||
932 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
933 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
934 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
935 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
936 | queue_work(priv->workqueue, &priv->abort_scan); | |
937 | ||
938 | } else | |
939 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
940 | ||
941 | return test_bit(STATUS_SCANNING, &priv->status); | |
942 | } | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | /** | |
bb8c093b | 948 | * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
949 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
950 | * | |
951 | * NOTE: priv->mutex must be held before calling this function | |
952 | */ | |
c79dd5b5 | 953 | static int iwl4965_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms) |
b481de9c ZY |
954 | { |
955 | unsigned long now = jiffies; | |
956 | int ret; | |
957 | ||
bb8c093b | 958 | ret = iwl4965_scan_cancel(priv); |
b481de9c ZY |
959 | if (ret && ms) { |
960 | mutex_unlock(&priv->mutex); | |
961 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
962 | test_bit(STATUS_SCANNING, &priv->status)) | |
963 | msleep(1); | |
964 | mutex_lock(&priv->mutex); | |
965 | ||
966 | return test_bit(STATUS_SCANNING, &priv->status); | |
967 | } | |
968 | ||
969 | return ret; | |
970 | } | |
971 | ||
c79dd5b5 | 972 | static void iwl4965_sequence_reset(struct iwl_priv *priv) |
b481de9c ZY |
973 | { |
974 | /* Reset ieee stats */ | |
975 | ||
976 | /* We don't reset the net_device_stats (ieee->stats) on | |
977 | * re-association */ | |
978 | ||
979 | priv->last_seq_num = -1; | |
980 | priv->last_frag_num = -1; | |
981 | priv->last_packet_time = 0; | |
982 | ||
bb8c093b | 983 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
984 | } |
985 | ||
986 | #define MAX_UCODE_BEACON_INTERVAL 4096 | |
987 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
988 | ||
bb8c093b | 989 | static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
990 | { |
991 | u16 new_val = 0; | |
992 | u16 beacon_factor = 0; | |
993 | ||
994 | beacon_factor = | |
995 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
996 | / MAX_UCODE_BEACON_INTERVAL; | |
997 | new_val = beacon_val / beacon_factor; | |
998 | ||
999 | return cpu_to_le16(new_val); | |
1000 | } | |
1001 | ||
c79dd5b5 | 1002 | static void iwl4965_setup_rxon_timing(struct iwl_priv *priv) |
b481de9c ZY |
1003 | { |
1004 | u64 interval_tm_unit; | |
1005 | u64 tsf, result; | |
1006 | unsigned long flags; | |
1007 | struct ieee80211_conf *conf = NULL; | |
1008 | u16 beacon_int = 0; | |
1009 | ||
1010 | conf = ieee80211_get_hw_conf(priv->hw); | |
1011 | ||
1012 | spin_lock_irqsave(&priv->lock, flags); | |
3109ece1 TW |
1013 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32); |
1014 | priv->rxon_timing.timestamp.dw[0] = | |
1015 | cpu_to_le32(priv->timestamp & 0xFFFFFFFF); | |
b481de9c ZY |
1016 | |
1017 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
1018 | ||
3109ece1 | 1019 | tsf = priv->timestamp; |
b481de9c ZY |
1020 | |
1021 | beacon_int = priv->beacon_int; | |
1022 | spin_unlock_irqrestore(&priv->lock, flags); | |
1023 | ||
1024 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) { | |
1025 | if (beacon_int == 0) { | |
1026 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
1027 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
1028 | } else { | |
1029 | priv->rxon_timing.beacon_interval = | |
1030 | cpu_to_le16(beacon_int); | |
1031 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 1032 | iwl4965_adjust_beacon_interval( |
b481de9c ZY |
1033 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
1034 | } | |
1035 | ||
1036 | priv->rxon_timing.atim_window = 0; | |
1037 | } else { | |
1038 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 1039 | iwl4965_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
1040 | /* TODO: we need to get atim_window from upper stack |
1041 | * for now we set to 0 */ | |
1042 | priv->rxon_timing.atim_window = 0; | |
1043 | } | |
1044 | ||
1045 | interval_tm_unit = | |
1046 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
1047 | result = do_div(tsf, interval_tm_unit); | |
1048 | priv->rxon_timing.beacon_init_val = | |
1049 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
1050 | ||
1051 | IWL_DEBUG_ASSOC | |
1052 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
1053 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
1054 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
1055 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
1056 | } | |
1057 | ||
c79dd5b5 | 1058 | static int iwl4965_scan_initiate(struct iwl_priv *priv) |
b481de9c ZY |
1059 | { |
1060 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
1061 | IWL_ERROR("APs don't scan.\n"); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
fee1247a | 1065 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
1066 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
1067 | return -EIO; | |
1068 | } | |
1069 | ||
1070 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1071 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
1072 | return -EAGAIN; | |
1073 | } | |
1074 | ||
1075 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1076 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
1077 | "Queuing.\n"); | |
1078 | return -EAGAIN; | |
1079 | } | |
1080 | ||
1081 | IWL_DEBUG_INFO("Starting scan...\n"); | |
1082 | priv->scan_bands = 2; | |
1083 | set_bit(STATUS_SCANNING, &priv->status); | |
1084 | priv->scan_start = jiffies; | |
1085 | priv->scan_pass_start = priv->scan_start; | |
1086 | ||
1087 | queue_work(priv->workqueue, &priv->request_scan); | |
1088 | ||
1089 | return 0; | |
1090 | } | |
1091 | ||
b481de9c | 1092 | |
c79dd5b5 | 1093 | static void iwl4965_set_flags_for_phymode(struct iwl_priv *priv, |
8318d78a | 1094 | enum ieee80211_band band) |
b481de9c | 1095 | { |
8318d78a | 1096 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
1097 | priv->staging_rxon.flags &= |
1098 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
1099 | | RXON_FLG_CCK_MSK); | |
1100 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1101 | } else { | |
508e32e1 | 1102 | /* Copied from iwl4965_post_associate() */ |
b481de9c ZY |
1103 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
1104 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1105 | else | |
1106 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1107 | ||
1108 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
1109 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1110 | ||
1111 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
1112 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
1113 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | /* | |
01ebd063 | 1118 | * initialize rxon structure with default values from eeprom |
b481de9c | 1119 | */ |
c79dd5b5 | 1120 | static void iwl4965_connection_init_rx_config(struct iwl_priv *priv) |
b481de9c | 1121 | { |
bf85ea4f | 1122 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
1123 | |
1124 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
1125 | ||
1126 | switch (priv->iw_mode) { | |
1127 | case IEEE80211_IF_TYPE_AP: | |
1128 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; | |
1129 | break; | |
1130 | ||
1131 | case IEEE80211_IF_TYPE_STA: | |
1132 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; | |
1133 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
1134 | break; | |
1135 | ||
1136 | case IEEE80211_IF_TYPE_IBSS: | |
1137 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; | |
1138 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
1139 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
1140 | RXON_FILTER_ACCEPT_GRP_MSK; | |
1141 | break; | |
1142 | ||
1143 | case IEEE80211_IF_TYPE_MNTR: | |
1144 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; | |
1145 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
1146 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
1147 | break; | |
69dc5d9d TW |
1148 | default: |
1149 | IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode); | |
1150 | break; | |
b481de9c ZY |
1151 | } |
1152 | ||
1153 | #if 0 | |
1154 | /* TODO: Figure out when short_preamble would be set and cache from | |
1155 | * that */ | |
1156 | if (!hw_to_local(priv->hw)->short_preamble) | |
1157 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
1158 | else | |
1159 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
1160 | #endif | |
1161 | ||
8622e705 | 1162 | ch_info = iwl_get_channel_info(priv, priv->band, |
b481de9c ZY |
1163 | le16_to_cpu(priv->staging_rxon.channel)); |
1164 | ||
1165 | if (!ch_info) | |
1166 | ch_info = &priv->channel_info[0]; | |
1167 | ||
1168 | /* | |
1169 | * in some case A channels are all non IBSS | |
1170 | * in this case force B/G channel | |
1171 | */ | |
1172 | if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && | |
1173 | !(is_channel_ibss(ch_info))) | |
1174 | ch_info = &priv->channel_info[0]; | |
1175 | ||
1176 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
8318d78a | 1177 | priv->band = ch_info->band; |
b481de9c | 1178 | |
8318d78a | 1179 | iwl4965_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
1180 | |
1181 | priv->staging_rxon.ofdm_basic_rates = | |
1182 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1183 | priv->staging_rxon.cck_basic_rates = | |
1184 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1185 | ||
1186 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
1187 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
1188 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
1189 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); | |
1190 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; | |
1191 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; | |
c7de35cd | 1192 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
1193 | } |
1194 | ||
c79dd5b5 | 1195 | static int iwl4965_set_mode(struct iwl_priv *priv, int mode) |
b481de9c | 1196 | { |
b481de9c | 1197 | if (mode == IEEE80211_IF_TYPE_IBSS) { |
bf85ea4f | 1198 | const struct iwl_channel_info *ch_info; |
b481de9c | 1199 | |
8622e705 | 1200 | ch_info = iwl_get_channel_info(priv, |
8318d78a | 1201 | priv->band, |
b481de9c ZY |
1202 | le16_to_cpu(priv->staging_rxon.channel)); |
1203 | ||
1204 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
1205 | IWL_ERROR("channel %d not IBSS channel\n", | |
1206 | le16_to_cpu(priv->staging_rxon.channel)); | |
1207 | return -EINVAL; | |
1208 | } | |
1209 | } | |
1210 | ||
b481de9c ZY |
1211 | priv->iw_mode = mode; |
1212 | ||
bb8c093b | 1213 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
1214 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
1215 | ||
bf85ea4f | 1216 | iwlcore_clear_stations_table(priv); |
b481de9c | 1217 | |
fde3571f | 1218 | /* dont commit rxon if rf-kill is on*/ |
fee1247a | 1219 | if (!iwl_is_ready_rf(priv)) |
fde3571f MA |
1220 | return -EAGAIN; |
1221 | ||
1222 | cancel_delayed_work(&priv->scan_check); | |
1223 | if (iwl4965_scan_cancel_timeout(priv, 100)) { | |
1224 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
1225 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
1226 | return -EAGAIN; | |
1227 | } | |
1228 | ||
bb8c093b | 1229 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
1230 | |
1231 | return 0; | |
1232 | } | |
1233 | ||
c79dd5b5 | 1234 | static void iwl4965_set_rate(struct iwl_priv *priv) |
b481de9c | 1235 | { |
8318d78a | 1236 | const struct ieee80211_supported_band *hw = NULL; |
b481de9c ZY |
1237 | struct ieee80211_rate *rate; |
1238 | int i; | |
1239 | ||
d1141dfb | 1240 | hw = iwl_get_hw_mode(priv, priv->band); |
c4ba9621 SA |
1241 | if (!hw) { |
1242 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); | |
1243 | return; | |
1244 | } | |
b481de9c ZY |
1245 | |
1246 | priv->active_rate = 0; | |
1247 | priv->active_rate_basic = 0; | |
1248 | ||
8318d78a JB |
1249 | for (i = 0; i < hw->n_bitrates; i++) { |
1250 | rate = &(hw->bitrates[i]); | |
1251 | if (rate->hw_value < IWL_RATE_COUNT) | |
1252 | priv->active_rate |= (1 << rate->hw_value); | |
b481de9c ZY |
1253 | } |
1254 | ||
1255 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
1256 | priv->active_rate, priv->active_rate_basic); | |
1257 | ||
1258 | /* | |
1259 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
1260 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
1261 | * OFDM | |
1262 | */ | |
1263 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
1264 | priv->staging_rxon.cck_basic_rates = | |
1265 | ((priv->active_rate_basic & | |
1266 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
1267 | else | |
1268 | priv->staging_rxon.cck_basic_rates = | |
1269 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1270 | ||
1271 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
1272 | priv->staging_rxon.ofdm_basic_rates = | |
1273 | ((priv->active_rate_basic & | |
1274 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
1275 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
1276 | else | |
1277 | priv->staging_rxon.ofdm_basic_rates = | |
1278 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1279 | } | |
1280 | ||
ad97edd2 | 1281 | void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio) |
b481de9c ZY |
1282 | { |
1283 | unsigned long flags; | |
1284 | ||
1285 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1286 | return; | |
1287 | ||
1288 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
1289 | disable_radio ? "OFF" : "ON"); | |
1290 | ||
1291 | if (disable_radio) { | |
bb8c093b | 1292 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
1293 | /* FIXME: This is a workaround for AP */ |
1294 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
1295 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 1296 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1297 | CSR_UCODE_SW_BIT_RFKILL); |
1298 | spin_unlock_irqrestore(&priv->lock, flags); | |
ad97edd2 | 1299 | /* call the host command only if no hw rf-kill set */ |
59003835 MA |
1300 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && |
1301 | iwl_is_ready(priv)) | |
ad97edd2 MA |
1302 | iwl4965_send_card_state(priv, |
1303 | CARD_STATE_CMD_DISABLE, | |
1304 | 0); | |
b481de9c | 1305 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
ad97edd2 MA |
1306 | |
1307 | /* make sure mac80211 stop sending Tx frame */ | |
1308 | if (priv->mac80211_registered) | |
1309 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
1310 | } |
1311 | return; | |
1312 | } | |
1313 | ||
1314 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 1315 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
1316 | |
1317 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1318 | spin_unlock_irqrestore(&priv->lock, flags); | |
1319 | ||
1320 | /* wake up ucode */ | |
1321 | msleep(10); | |
1322 | ||
1323 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
1324 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1325 | if (!iwl_grab_nic_access(priv)) | |
1326 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1327 | spin_unlock_irqrestore(&priv->lock, flags); |
1328 | ||
1329 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
1330 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
1331 | "disabled by HW switch\n"); | |
1332 | return; | |
1333 | } | |
1334 | ||
1335 | queue_work(priv->workqueue, &priv->restart); | |
1336 | return; | |
1337 | } | |
1338 | ||
b481de9c ZY |
1339 | #define IWL_PACKET_RETRY_TIME HZ |
1340 | ||
c79dd5b5 | 1341 | int iwl4965_is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
1342 | { |
1343 | u16 sc = le16_to_cpu(header->seq_ctrl); | |
1344 | u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4; | |
1345 | u16 frag = sc & IEEE80211_SCTL_FRAG; | |
1346 | u16 *last_seq, *last_frag; | |
1347 | unsigned long *last_time; | |
1348 | ||
1349 | switch (priv->iw_mode) { | |
1350 | case IEEE80211_IF_TYPE_IBSS:{ | |
1351 | struct list_head *p; | |
bb8c093b | 1352 | struct iwl4965_ibss_seq *entry = NULL; |
b481de9c ZY |
1353 | u8 *mac = header->addr2; |
1354 | int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1); | |
1355 | ||
1356 | __list_for_each(p, &priv->ibss_mac_hash[index]) { | |
bb8c093b | 1357 | entry = list_entry(p, struct iwl4965_ibss_seq, list); |
b481de9c ZY |
1358 | if (!compare_ether_addr(entry->mac, mac)) |
1359 | break; | |
1360 | } | |
1361 | if (p == &priv->ibss_mac_hash[index]) { | |
1362 | entry = kzalloc(sizeof(*entry), GFP_ATOMIC); | |
1363 | if (!entry) { | |
bc434dd2 | 1364 | IWL_ERROR("Cannot malloc new mac entry\n"); |
b481de9c ZY |
1365 | return 0; |
1366 | } | |
1367 | memcpy(entry->mac, mac, ETH_ALEN); | |
1368 | entry->seq_num = seq; | |
1369 | entry->frag_num = frag; | |
1370 | entry->packet_time = jiffies; | |
bc434dd2 | 1371 | list_add(&entry->list, &priv->ibss_mac_hash[index]); |
b481de9c ZY |
1372 | return 0; |
1373 | } | |
1374 | last_seq = &entry->seq_num; | |
1375 | last_frag = &entry->frag_num; | |
1376 | last_time = &entry->packet_time; | |
1377 | break; | |
1378 | } | |
1379 | case IEEE80211_IF_TYPE_STA: | |
1380 | last_seq = &priv->last_seq_num; | |
1381 | last_frag = &priv->last_frag_num; | |
1382 | last_time = &priv->last_packet_time; | |
1383 | break; | |
1384 | default: | |
1385 | return 0; | |
1386 | } | |
1387 | if ((*last_seq == seq) && | |
1388 | time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) { | |
1389 | if (*last_frag == frag) | |
1390 | goto drop; | |
1391 | if (*last_frag + 1 != frag) | |
1392 | /* out-of-order fragment */ | |
1393 | goto drop; | |
1394 | } else | |
1395 | *last_seq = seq; | |
1396 | ||
1397 | *last_frag = frag; | |
1398 | *last_time = jiffies; | |
1399 | return 0; | |
1400 | ||
1401 | drop: | |
1402 | return 1; | |
1403 | } | |
1404 | ||
c8b0e6e1 | 1405 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
1406 | |
1407 | #include "iwl-spectrum.h" | |
1408 | ||
1409 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
1410 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
1411 | #define TIME_UNIT 1024 | |
1412 | ||
1413 | /* | |
1414 | * extended beacon time format | |
1415 | * time in usec will be changed into a 32-bit value in 8:24 format | |
1416 | * the high 1 byte is the beacon counts | |
1417 | * the lower 3 bytes is the time in usec within one beacon interval | |
1418 | */ | |
1419 | ||
bb8c093b | 1420 | static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
1421 | { |
1422 | u32 quot; | |
1423 | u32 rem; | |
1424 | u32 interval = beacon_interval * 1024; | |
1425 | ||
1426 | if (!interval || !usec) | |
1427 | return 0; | |
1428 | ||
1429 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
1430 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
1431 | ||
1432 | return (quot << 24) + rem; | |
1433 | } | |
1434 | ||
1435 | /* base is usually what we get from ucode with each received frame, | |
1436 | * the same as HW timer counter counting down | |
1437 | */ | |
1438 | ||
bb8c093b | 1439 | static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
1440 | { |
1441 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
1442 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
1443 | u32 interval = beacon_interval * TIME_UNIT; | |
1444 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
1445 | (addon & BEACON_TIME_MASK_HIGH); | |
1446 | ||
1447 | if (base_low > addon_low) | |
1448 | res += base_low - addon_low; | |
1449 | else if (base_low < addon_low) { | |
1450 | res += interval + base_low - addon_low; | |
1451 | res += (1 << 24); | |
1452 | } else | |
1453 | res += (1 << 24); | |
1454 | ||
1455 | return cpu_to_le32(res); | |
1456 | } | |
1457 | ||
c79dd5b5 | 1458 | static int iwl4965_get_measurement(struct iwl_priv *priv, |
b481de9c ZY |
1459 | struct ieee80211_measurement_params *params, |
1460 | u8 type) | |
1461 | { | |
bb8c093b | 1462 | struct iwl4965_spectrum_cmd spectrum; |
db11d634 | 1463 | struct iwl_rx_packet *res; |
857485c0 | 1464 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
1465 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
1466 | .data = (void *)&spectrum, | |
1467 | .meta.flags = CMD_WANT_SKB, | |
1468 | }; | |
1469 | u32 add_time = le64_to_cpu(params->start_time); | |
1470 | int rc; | |
1471 | int spectrum_resp_status; | |
1472 | int duration = le16_to_cpu(params->duration); | |
1473 | ||
3109ece1 | 1474 | if (iwl_is_associated(priv)) |
b481de9c | 1475 | add_time = |
bb8c093b | 1476 | iwl4965_usecs_to_beacons( |
b481de9c ZY |
1477 | le64_to_cpu(params->start_time) - priv->last_tsf, |
1478 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1479 | ||
1480 | memset(&spectrum, 0, sizeof(spectrum)); | |
1481 | ||
1482 | spectrum.channel_count = cpu_to_le16(1); | |
1483 | spectrum.flags = | |
1484 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
1485 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
1486 | cmd.len = sizeof(spectrum); | |
1487 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
1488 | ||
3109ece1 | 1489 | if (iwl_is_associated(priv)) |
b481de9c | 1490 | spectrum.start_time = |
bb8c093b | 1491 | iwl4965_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
1492 | add_time, |
1493 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1494 | else | |
1495 | spectrum.start_time = 0; | |
1496 | ||
1497 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
1498 | spectrum.channels[0].channel = params->channel; | |
1499 | spectrum.channels[0].type = type; | |
1500 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
1501 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
1502 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
1503 | ||
857485c0 | 1504 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1505 | if (rc) |
1506 | return rc; | |
1507 | ||
db11d634 | 1508 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1509 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1510 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
1511 | rc = -EIO; | |
1512 | } | |
1513 | ||
1514 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
1515 | switch (spectrum_resp_status) { | |
1516 | case 0: /* Command will be handled */ | |
1517 | if (res->u.spectrum.id != 0xff) { | |
1518 | IWL_DEBUG_INFO | |
1519 | ("Replaced existing measurement: %d\n", | |
1520 | res->u.spectrum.id); | |
1521 | priv->measurement_status &= ~MEASUREMENT_READY; | |
1522 | } | |
1523 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
1524 | rc = 0; | |
1525 | break; | |
1526 | ||
1527 | case 1: /* Command will not be handled */ | |
1528 | rc = -EAGAIN; | |
1529 | break; | |
1530 | } | |
1531 | ||
1532 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1533 | ||
1534 | return rc; | |
1535 | } | |
1536 | #endif | |
1537 | ||
c79dd5b5 | 1538 | static void iwl4965_txstatus_to_ieee(struct iwl_priv *priv, |
8567c63e | 1539 | struct iwl_tx_info *tx_sta) |
b481de9c | 1540 | { |
e039fa4a | 1541 | ieee80211_tx_status_irqsafe(priv->hw, tx_sta->skb[0]); |
b481de9c ZY |
1542 | tx_sta->skb[0] = NULL; |
1543 | } | |
1544 | ||
1545 | /** | |
6440adb5 | 1546 | * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd |
b481de9c | 1547 | * |
6440adb5 CB |
1548 | * When FW advances 'R' index, all entries between old and new 'R' index |
1549 | * need to be reclaimed. As result, some free space forms. If there is | |
1550 | * enough free space (> low mark), wake the stack that feeds us. | |
b481de9c | 1551 | */ |
c79dd5b5 | 1552 | int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) |
b481de9c | 1553 | { |
16466903 | 1554 | struct iwl_tx_queue *txq = &priv->txq[txq_id]; |
443cfd45 | 1555 | struct iwl_queue *q = &txq->q; |
b481de9c ZY |
1556 | int nfreed = 0; |
1557 | ||
443cfd45 | 1558 | if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { |
b481de9c ZY |
1559 | IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " |
1560 | "is out of range [0-%d] %d %d.\n", txq_id, | |
fc4b6853 | 1561 | index, q->n_bd, q->write_ptr, q->read_ptr); |
b481de9c ZY |
1562 | return 0; |
1563 | } | |
1564 | ||
c54b679d | 1565 | for (index = iwl_queue_inc_wrap(index, q->n_bd); |
fc4b6853 | 1566 | q->read_ptr != index; |
c54b679d | 1567 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { |
b481de9c | 1568 | if (txq_id != IWL_CMD_QUEUE_NUM) { |
bb8c093b | 1569 | iwl4965_txstatus_to_ieee(priv, |
fc4b6853 | 1570 | &(txq->txb[txq->q.read_ptr])); |
1053d35f | 1571 | iwl_hw_txq_free_tfd(priv, txq); |
b481de9c ZY |
1572 | } else if (nfreed > 1) { |
1573 | IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, | |
fc4b6853 | 1574 | q->write_ptr, q->read_ptr); |
b481de9c ZY |
1575 | queue_work(priv->workqueue, &priv->restart); |
1576 | } | |
1577 | nfreed++; | |
1578 | } | |
1579 | ||
b481de9c ZY |
1580 | return nfreed; |
1581 | } | |
1582 | ||
b481de9c ZY |
1583 | /****************************************************************************** |
1584 | * | |
1585 | * Generic RX handler implementations | |
1586 | * | |
1587 | ******************************************************************************/ | |
885ba202 TW |
1588 | static void iwl_rx_reply_alive(struct iwl_priv *priv, |
1589 | struct iwl_rx_mem_buffer *rxb) | |
b481de9c | 1590 | { |
db11d634 | 1591 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
885ba202 | 1592 | struct iwl_alive_resp *palive; |
b481de9c ZY |
1593 | struct delayed_work *pwork; |
1594 | ||
1595 | palive = &pkt->u.alive_frame; | |
1596 | ||
1597 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
1598 | "0x%01X 0x%01X\n", | |
1599 | palive->is_valid, palive->ver_type, | |
1600 | palive->ver_subtype); | |
1601 | ||
1602 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
1603 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
1604 | memcpy(&priv->card_alive_init, | |
1605 | &pkt->u.alive_frame, | |
885ba202 | 1606 | sizeof(struct iwl_init_alive_resp)); |
b481de9c ZY |
1607 | pwork = &priv->init_alive_start; |
1608 | } else { | |
1609 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
1610 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
885ba202 | 1611 | sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
1612 | pwork = &priv->alive_start; |
1613 | } | |
1614 | ||
1615 | /* We delay the ALIVE response by 5ms to | |
1616 | * give the HW RF Kill time to activate... */ | |
1617 | if (palive->is_valid == UCODE_VALID_OK) | |
1618 | queue_delayed_work(priv->workqueue, pwork, | |
1619 | msecs_to_jiffies(5)); | |
1620 | else | |
1621 | IWL_WARNING("uCode did not respond OK.\n"); | |
1622 | } | |
1623 | ||
c79dd5b5 | 1624 | static void iwl4965_rx_reply_error(struct iwl_priv *priv, |
a55360e4 | 1625 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1626 | { |
db11d634 | 1627 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1628 | |
1629 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
1630 | "seq 0x%04X ser 0x%08X\n", | |
1631 | le32_to_cpu(pkt->u.err_resp.error_type), | |
1632 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
1633 | pkt->u.err_resp.cmd_id, | |
1634 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
1635 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
1636 | } | |
1637 | ||
1638 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
1639 | ||
a55360e4 | 1640 | static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1641 | { |
db11d634 | 1642 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
c1adf9fb | 1643 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
bb8c093b | 1644 | struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif); |
b481de9c ZY |
1645 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
1646 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
1647 | rxon->channel = csa->channel; | |
1648 | priv->staging_rxon.channel = csa->channel; | |
1649 | } | |
1650 | ||
c79dd5b5 | 1651 | static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv, |
a55360e4 | 1652 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1653 | { |
c8b0e6e1 | 1654 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
db11d634 | 1655 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1656 | struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif); |
b481de9c ZY |
1657 | |
1658 | if (!report->state) { | |
f3d67999 EK |
1659 | IWL_DEBUG(IWL_DL_11H, |
1660 | "Spectrum Measure Notification: Start\n"); | |
b481de9c ZY |
1661 | return; |
1662 | } | |
1663 | ||
1664 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
1665 | priv->measurement_status |= MEASUREMENT_READY; | |
1666 | #endif | |
1667 | } | |
1668 | ||
c79dd5b5 | 1669 | static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv, |
a55360e4 | 1670 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1671 | { |
0a6857e7 | 1672 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1673 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1674 | struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif); |
b481de9c ZY |
1675 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
1676 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
1677 | #endif | |
1678 | } | |
1679 | ||
c79dd5b5 | 1680 | static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
a55360e4 | 1681 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1682 | { |
db11d634 | 1683 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1684 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
1685 | "notification for %s:\n", | |
1686 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bf403db8 | 1687 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
1688 | } |
1689 | ||
bb8c093b | 1690 | static void iwl4965_bg_beacon_update(struct work_struct *work) |
b481de9c | 1691 | { |
c79dd5b5 TW |
1692 | struct iwl_priv *priv = |
1693 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
1694 | struct sk_buff *beacon; |
1695 | ||
1696 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 1697 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
1698 | |
1699 | if (!beacon) { | |
1700 | IWL_ERROR("update beacon failed\n"); | |
1701 | return; | |
1702 | } | |
1703 | ||
1704 | mutex_lock(&priv->mutex); | |
1705 | /* new beacon skb is allocated every time; dispose previous.*/ | |
1706 | if (priv->ibss_beacon) | |
1707 | dev_kfree_skb(priv->ibss_beacon); | |
1708 | ||
1709 | priv->ibss_beacon = beacon; | |
1710 | mutex_unlock(&priv->mutex); | |
1711 | ||
bb8c093b | 1712 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
1713 | } |
1714 | ||
c79dd5b5 | 1715 | static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 1716 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1717 | { |
0a6857e7 | 1718 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1719 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1720 | struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status); |
1721 | u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); | |
b481de9c ZY |
1722 | |
1723 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
1724 | "tsf %d %d rate %d\n", | |
1725 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
1726 | beacon->beacon_notify_hdr.failure_frame, | |
1727 | le32_to_cpu(beacon->ibss_mgr_status), | |
1728 | le32_to_cpu(beacon->high_tsf), | |
1729 | le32_to_cpu(beacon->low_tsf), rate); | |
1730 | #endif | |
1731 | ||
1732 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && | |
1733 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) | |
1734 | queue_work(priv->workqueue, &priv->beacon_update); | |
1735 | } | |
1736 | ||
1737 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
c79dd5b5 | 1738 | static void iwl4965_rx_reply_scan(struct iwl_priv *priv, |
a55360e4 | 1739 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1740 | { |
0a6857e7 | 1741 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1742 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1743 | struct iwl4965_scanreq_notification *notif = |
1744 | (struct iwl4965_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
1745 | |
1746 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
1747 | #endif | |
1748 | } | |
1749 | ||
1750 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
c79dd5b5 | 1751 | static void iwl4965_rx_scan_start_notif(struct iwl_priv *priv, |
a55360e4 | 1752 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1753 | { |
db11d634 | 1754 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1755 | struct iwl4965_scanstart_notification *notif = |
1756 | (struct iwl4965_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
1757 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
1758 | IWL_DEBUG_SCAN("Scan start: " | |
1759 | "%d [802.11%s] " | |
1760 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
1761 | notif->channel, | |
1762 | notif->band ? "bg" : "a", | |
1763 | notif->tsf_high, | |
1764 | notif->tsf_low, notif->status, notif->beacon_timer); | |
1765 | } | |
1766 | ||
1767 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
c79dd5b5 | 1768 | static void iwl4965_rx_scan_results_notif(struct iwl_priv *priv, |
a55360e4 | 1769 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1770 | { |
db11d634 | 1771 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1772 | struct iwl4965_scanresults_notification *notif = |
1773 | (struct iwl4965_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
1774 | |
1775 | IWL_DEBUG_SCAN("Scan ch.res: " | |
1776 | "%d [802.11%s] " | |
1777 | "(TSF: 0x%08X:%08X) - %d " | |
1778 | "elapsed=%lu usec (%dms since last)\n", | |
1779 | notif->channel, | |
1780 | notif->band ? "bg" : "a", | |
1781 | le32_to_cpu(notif->tsf_high), | |
1782 | le32_to_cpu(notif->tsf_low), | |
1783 | le32_to_cpu(notif->statistics[0]), | |
1784 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
1785 | jiffies_to_msecs(elapsed_jiffies | |
1786 | (priv->last_scan_jiffies, jiffies))); | |
1787 | ||
1788 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 1789 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
1790 | } |
1791 | ||
1792 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
c79dd5b5 | 1793 | static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv, |
a55360e4 | 1794 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1795 | { |
db11d634 | 1796 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1797 | struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw; |
b481de9c ZY |
1798 | |
1799 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
1800 | scan_notif->scanned_channels, | |
1801 | scan_notif->tsf_low, | |
1802 | scan_notif->tsf_high, scan_notif->status); | |
1803 | ||
1804 | /* The HW is no longer scanning */ | |
1805 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
1806 | ||
1807 | /* The scan completion notification came in, so kill that timer... */ | |
1808 | cancel_delayed_work(&priv->scan_check); | |
1809 | ||
1810 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
1811 | (priv->scan_bands == 2) ? "2.4" : "5.2", | |
1812 | jiffies_to_msecs(elapsed_jiffies | |
1813 | (priv->scan_pass_start, jiffies))); | |
1814 | ||
1815 | /* Remove this scanned band from the list | |
1816 | * of pending bands to scan */ | |
1817 | priv->scan_bands--; | |
1818 | ||
1819 | /* If a request to abort was given, or the scan did not succeed | |
1820 | * then we reset the scan state machine and terminate, | |
1821 | * re-queuing another scan if one has been requested */ | |
1822 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1823 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
1824 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1825 | } else { | |
1826 | /* If there are more bands on this scan pass reschedule */ | |
1827 | if (priv->scan_bands > 0) | |
1828 | goto reschedule; | |
1829 | } | |
1830 | ||
1831 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 1832 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
1833 | IWL_DEBUG_INFO("Setting scan to off\n"); |
1834 | ||
1835 | clear_bit(STATUS_SCANNING, &priv->status); | |
1836 | ||
1837 | IWL_DEBUG_INFO("Scan took %dms\n", | |
1838 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
1839 | ||
1840 | queue_work(priv->workqueue, &priv->scan_completed); | |
1841 | ||
1842 | return; | |
1843 | ||
1844 | reschedule: | |
1845 | priv->scan_pass_start = jiffies; | |
1846 | queue_work(priv->workqueue, &priv->request_scan); | |
1847 | } | |
1848 | ||
1849 | /* Handle notification from uCode that card's power state is changing | |
1850 | * due to software, hardware, or critical temperature RFKILL */ | |
c79dd5b5 | 1851 | static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, |
a55360e4 | 1852 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1853 | { |
db11d634 | 1854 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1855 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
1856 | unsigned long status = priv->status; | |
1857 | ||
1858 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
1859 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
1860 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
1861 | ||
1862 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | | |
1863 | RF_CARD_DISABLED)) { | |
1864 | ||
3395f6e9 | 1865 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1866 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
1867 | ||
3395f6e9 TW |
1868 | if (!iwl_grab_nic_access(priv)) { |
1869 | iwl_write_direct32( | |
b481de9c ZY |
1870 | priv, HBUS_TARG_MBX_C, |
1871 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1872 | ||
3395f6e9 | 1873 | iwl_release_nic_access(priv); |
b481de9c ZY |
1874 | } |
1875 | ||
1876 | if (!(flags & RXON_CARD_DISABLED)) { | |
3395f6e9 | 1877 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c | 1878 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3395f6e9 TW |
1879 | if (!iwl_grab_nic_access(priv)) { |
1880 | iwl_write_direct32( | |
b481de9c ZY |
1881 | priv, HBUS_TARG_MBX_C, |
1882 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1883 | ||
3395f6e9 | 1884 | iwl_release_nic_access(priv); |
b481de9c ZY |
1885 | } |
1886 | } | |
1887 | ||
1888 | if (flags & RF_CARD_DISABLED) { | |
3395f6e9 | 1889 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c | 1890 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
3395f6e9 TW |
1891 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1892 | if (!iwl_grab_nic_access(priv)) | |
1893 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1894 | } |
1895 | } | |
1896 | ||
1897 | if (flags & HW_CARD_DISABLED) | |
1898 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1899 | else | |
1900 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
1901 | ||
1902 | ||
1903 | if (flags & SW_CARD_DISABLED) | |
1904 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1905 | else | |
1906 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1907 | ||
1908 | if (!(flags & RXON_CARD_DISABLED)) | |
bb8c093b | 1909 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
1910 | |
1911 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
1912 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
1913 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
1914 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
1915 | queue_work(priv->workqueue, &priv->rf_kill); | |
1916 | else | |
1917 | wake_up_interruptible(&priv->wait_command_queue); | |
1918 | } | |
1919 | ||
1920 | /** | |
bb8c093b | 1921 | * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
1922 | * |
1923 | * Setup the RX handlers for each of the reply types sent from the uCode | |
1924 | * to the host. | |
1925 | * | |
1926 | * This function chains into the hardware specific files for them to setup | |
1927 | * any hardware specific handlers as well. | |
1928 | */ | |
c79dd5b5 | 1929 | static void iwl4965_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 1930 | { |
885ba202 | 1931 | priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; |
bb8c093b CH |
1932 | priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error; |
1933 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa; | |
b481de9c | 1934 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
1935 | iwl4965_rx_spectrum_measure_notif; |
1936 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif; | |
b481de9c | 1937 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
1938 | iwl4965_rx_pm_debug_statistics_notif; |
1939 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif; | |
b481de9c | 1940 | |
9fbab516 BC |
1941 | /* |
1942 | * The same handler is used for both the REPLY to a discrete | |
1943 | * statistics request from the host as well as for the periodic | |
1944 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 1945 | */ |
bb8c093b CH |
1946 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics; |
1947 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics; | |
b481de9c | 1948 | |
bb8c093b CH |
1949 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan; |
1950 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif; | |
b481de9c | 1951 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 1952 | iwl4965_rx_scan_results_notif; |
b481de9c | 1953 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b CH |
1954 | iwl4965_rx_scan_complete_notif; |
1955 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif; | |
b481de9c | 1956 | |
c1354754 TW |
1957 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = |
1958 | iwl_rx_missed_beacon_notif; | |
1959 | ||
9fbab516 | 1960 | /* Set up hardware specific Rx handlers */ |
d4789efe | 1961 | priv->cfg->ops->lib->rx_handler_setup(priv); |
b481de9c ZY |
1962 | } |
1963 | ||
1964 | /** | |
bb8c093b | 1965 | * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
1966 | * @rxb: Rx buffer to reclaim |
1967 | * | |
1968 | * If an Rx buffer has an async callback associated with it the callback | |
1969 | * will be executed. The attached skb (if present) will only be freed | |
1970 | * if the callback returns 1 | |
1971 | */ | |
c79dd5b5 | 1972 | static void iwl4965_tx_cmd_complete(struct iwl_priv *priv, |
a55360e4 | 1973 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1974 | { |
db11d634 | 1975 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1976 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
1977 | int txq_id = SEQ_TO_QUEUE(sequence); | |
1978 | int index = SEQ_TO_INDEX(sequence); | |
1979 | int huge = sequence & SEQ_HUGE_FRAME; | |
1980 | int cmd_index; | |
857485c0 | 1981 | struct iwl_cmd *cmd; |
b481de9c ZY |
1982 | |
1983 | /* If a Tx command is being handled and it isn't in the actual | |
1984 | * command queue then there a command routing bug has been introduced | |
1985 | * in the queue management code. */ | |
1986 | if (txq_id != IWL_CMD_QUEUE_NUM) | |
1987 | IWL_ERROR("Error wrong command queue %d command id 0x%X\n", | |
1988 | txq_id, pkt->hdr.cmd); | |
1989 | BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); | |
1990 | ||
1991 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); | |
1992 | cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
1993 | ||
1994 | /* Input error checking is done when commands are added to queue. */ | |
1995 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
1996 | cmd->meta.source->u.skb = rxb->skb; | |
1997 | rxb->skb = NULL; | |
1998 | } else if (cmd->meta.u.callback && | |
1999 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
2000 | rxb->skb = NULL; | |
2001 | ||
bb8c093b | 2002 | iwl4965_tx_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
2003 | |
2004 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
2005 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
2006 | wake_up_interruptible(&priv->wait_command_queue); | |
2007 | } | |
2008 | } | |
2009 | ||
5c0eef96 MA |
2010 | /* |
2011 | * this should be called while priv->lock is locked | |
2012 | */ | |
a55360e4 | 2013 | static void __iwl_rx_replenish(struct iwl_priv *priv) |
b481de9c | 2014 | { |
a55360e4 TW |
2015 | iwl_rx_allocate(priv); |
2016 | iwl_rx_queue_restock(priv); | |
b481de9c ZY |
2017 | } |
2018 | ||
b481de9c ZY |
2019 | |
2020 | /** | |
a55360e4 | 2021 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
2022 | * |
2023 | * Uses the priv->rx_handlers callback function array to invoke | |
2024 | * the appropriate handlers, including command responses, | |
2025 | * frame-received notifications, and other notifications. | |
2026 | */ | |
a55360e4 | 2027 | void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 2028 | { |
a55360e4 | 2029 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 2030 | struct iwl_rx_packet *pkt; |
a55360e4 | 2031 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
2032 | u32 r, i; |
2033 | int reclaim; | |
2034 | unsigned long flags; | |
5c0eef96 | 2035 | u8 fill_rx = 0; |
d68ab680 | 2036 | u32 count = 8; |
b481de9c | 2037 | |
6440adb5 CB |
2038 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
2039 | * buffer that the driver may process (last buffer filled by ucode). */ | |
d67f5489 | 2040 | r = priv->cfg->ops->lib->shared_mem_rx_idx(priv); |
b481de9c ZY |
2041 | i = rxq->read; |
2042 | ||
2043 | /* Rx interrupt, but nothing sent from uCode */ | |
2044 | if (i == r) | |
f3d67999 | 2045 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i); |
b481de9c | 2046 | |
a55360e4 | 2047 | if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
5c0eef96 MA |
2048 | fill_rx = 1; |
2049 | ||
b481de9c ZY |
2050 | while (i != r) { |
2051 | rxb = rxq->queue[i]; | |
2052 | ||
9fbab516 | 2053 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
2054 | * then a bug has been introduced in the queue refilling |
2055 | * routines -- catch it here */ | |
2056 | BUG_ON(rxb == NULL); | |
2057 | ||
2058 | rxq->queue[i] = NULL; | |
2059 | ||
2060 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 2061 | priv->hw_params.rx_buf_size, |
b481de9c | 2062 | PCI_DMA_FROMDEVICE); |
db11d634 | 2063 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2064 | |
2065 | /* Reclaim a command buffer only if this packet is a response | |
2066 | * to a (driver-originated) command. | |
2067 | * If the packet (e.g. Rx frame) originated from uCode, | |
2068 | * there is no command buffer to reclaim. | |
2069 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
2070 | * but apparently a few don't get set; catch them here. */ | |
2071 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
2072 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 2073 | (pkt->hdr.cmd != REPLY_RX) && |
cfe01709 | 2074 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
2075 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
2076 | (pkt->hdr.cmd != REPLY_TX); | |
2077 | ||
2078 | /* Based on type of command response or notification, | |
2079 | * handle those that need handling via function in | |
bb8c093b | 2080 | * rx_handlers table. See iwl4965_setup_rx_handlers() */ |
b481de9c | 2081 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
f3d67999 EK |
2082 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r, |
2083 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
b481de9c ZY |
2084 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
2085 | } else { | |
2086 | /* No handling needed */ | |
f3d67999 | 2087 | IWL_DEBUG(IWL_DL_RX, |
b481de9c ZY |
2088 | "r %d i %d No handler needed for %s, 0x%02x\n", |
2089 | r, i, get_cmd_string(pkt->hdr.cmd), | |
2090 | pkt->hdr.cmd); | |
2091 | } | |
2092 | ||
2093 | if (reclaim) { | |
9fbab516 | 2094 | /* Invoke any callbacks, transfer the skb to caller, and |
857485c0 | 2095 | * fire off the (possibly) blocking iwl_send_cmd() |
b481de9c ZY |
2096 | * as we reclaim the driver command queue */ |
2097 | if (rxb && rxb->skb) | |
bb8c093b | 2098 | iwl4965_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
2099 | else |
2100 | IWL_WARNING("Claim null rxb?\n"); | |
2101 | } | |
2102 | ||
2103 | /* For now we just don't re-use anything. We can tweak this | |
2104 | * later to try and re-use notification packets and SKBs that | |
2105 | * fail to Rx correctly */ | |
2106 | if (rxb->skb != NULL) { | |
2107 | priv->alloc_rxb_skb--; | |
2108 | dev_kfree_skb_any(rxb->skb); | |
2109 | rxb->skb = NULL; | |
2110 | } | |
2111 | ||
2112 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 2113 | priv->hw_params.rx_buf_size, |
9ee1ba47 | 2114 | PCI_DMA_FROMDEVICE); |
b481de9c ZY |
2115 | spin_lock_irqsave(&rxq->lock, flags); |
2116 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
2117 | spin_unlock_irqrestore(&rxq->lock, flags); | |
2118 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
2119 | /* If there are a lot of unused frames, |
2120 | * restock the Rx queue so ucode wont assert. */ | |
2121 | if (fill_rx) { | |
2122 | count++; | |
2123 | if (count >= 8) { | |
2124 | priv->rxq.read = i; | |
a55360e4 | 2125 | __iwl_rx_replenish(priv); |
5c0eef96 MA |
2126 | count = 0; |
2127 | } | |
2128 | } | |
b481de9c ZY |
2129 | } |
2130 | ||
2131 | /* Backtrack one entry */ | |
2132 | priv->rxq.read = i; | |
a55360e4 TW |
2133 | iwl_rx_queue_restock(priv); |
2134 | } | |
2135 | /* Convert linear signal-to-noise ratio into dB */ | |
2136 | static u8 ratio2dB[100] = { | |
2137 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
2138 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
2139 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
2140 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
2141 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
2142 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
2143 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
2144 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
2145 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
2146 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
2147 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
2148 | }; | |
2149 | ||
2150 | /* Calculates a relative dB value from a ratio of linear | |
2151 | * (i.e. not dB) signal levels. | |
2152 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
2153 | int iwl4965_calc_db_from_ratio(int sig_ratio) | |
2154 | { | |
2155 | /* 1000:1 or higher just report as 60 dB */ | |
2156 | if (sig_ratio >= 1000) | |
2157 | return 60; | |
2158 | ||
2159 | /* 100:1 or higher, divide by 10 and use table, | |
2160 | * add 20 dB to make up for divide by 10 */ | |
2161 | if (sig_ratio >= 100) | |
2162 | return (20 + (int)ratio2dB[sig_ratio/10]); | |
2163 | ||
2164 | /* We shouldn't see this */ | |
2165 | if (sig_ratio < 1) | |
2166 | return 0; | |
2167 | ||
2168 | /* Use table for ratios 1:1 - 99:1 */ | |
2169 | return (int)ratio2dB[sig_ratio]; | |
2170 | } | |
2171 | ||
2172 | #define PERFECT_RSSI (-20) /* dBm */ | |
2173 | #define WORST_RSSI (-95) /* dBm */ | |
2174 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
2175 | ||
2176 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
2177 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
2178 | * about formulas used below. */ | |
2179 | int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm) | |
2180 | { | |
2181 | int sig_qual; | |
2182 | int degradation = PERFECT_RSSI - rssi_dbm; | |
2183 | ||
2184 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
2185 | * as indicator; formula is (signal dbm - noise dbm). | |
2186 | * SNR at or above 40 is a great signal (100%). | |
2187 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
2188 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
2189 | if (noise_dbm) { | |
2190 | if (rssi_dbm - noise_dbm >= 40) | |
2191 | return 100; | |
2192 | else if (rssi_dbm < noise_dbm) | |
2193 | return 0; | |
2194 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
2195 | ||
2196 | /* Else use just the signal level. | |
2197 | * This formula is a least squares fit of data points collected and | |
2198 | * compared with a reference system that had a percentage (%) display | |
2199 | * for signal quality. */ | |
2200 | } else | |
2201 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
2202 | (15 * RSSI_RANGE + 62 * degradation)) / | |
2203 | (RSSI_RANGE * RSSI_RANGE); | |
2204 | ||
2205 | if (sig_qual > 100) | |
2206 | sig_qual = 100; | |
2207 | else if (sig_qual < 1) | |
2208 | sig_qual = 0; | |
2209 | ||
2210 | return sig_qual; | |
b481de9c ZY |
2211 | } |
2212 | ||
0a6857e7 | 2213 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2214 | static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv) |
b481de9c | 2215 | { |
c1adf9fb | 2216 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
0795af57 JP |
2217 | DECLARE_MAC_BUF(mac); |
2218 | ||
b481de9c | 2219 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bf403db8 | 2220 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
2221 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
2222 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
2223 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
2224 | le32_to_cpu(rxon->filter_flags)); | |
2225 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
2226 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
2227 | rxon->ofdm_basic_rates); | |
2228 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
0795af57 JP |
2229 | IWL_DEBUG_RADIO("u8[6] node_addr: %s\n", |
2230 | print_mac(mac, rxon->node_addr)); | |
2231 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n", | |
2232 | print_mac(mac, rxon->bssid_addr)); | |
b481de9c ZY |
2233 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
2234 | } | |
2235 | #endif | |
2236 | ||
c79dd5b5 | 2237 | static void iwl4965_enable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
2238 | { |
2239 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
2240 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
3395f6e9 | 2241 | iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
2242 | } |
2243 | ||
0359facc MA |
2244 | /* call this function to flush any scheduled tasklet */ |
2245 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) | |
2246 | { | |
2247 | /* wait to make sure we flush pedding tasklet*/ | |
2248 | synchronize_irq(priv->pci_dev->irq); | |
2249 | tasklet_kill(&priv->irq_tasklet); | |
2250 | } | |
2251 | ||
c79dd5b5 | 2252 | static inline void iwl4965_disable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
2253 | { |
2254 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
2255 | ||
2256 | /* disable interrupts from uCode/NIC to host */ | |
3395f6e9 | 2257 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
2258 | |
2259 | /* acknowledge/clear/reset any interrupts still pending | |
2260 | * from uCode or flow handler (Rx/Tx DMA) */ | |
3395f6e9 TW |
2261 | iwl_write32(priv, CSR_INT, 0xffffffff); |
2262 | iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
2263 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
2264 | } | |
2265 | ||
b481de9c | 2266 | |
b481de9c | 2267 | /** |
bb8c093b | 2268 | * iwl4965_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 2269 | */ |
c79dd5b5 | 2270 | static void iwl4965_irq_handle_error(struct iwl_priv *priv) |
b481de9c | 2271 | { |
bb8c093b | 2272 | /* Set the FW error flag -- cleared on iwl4965_down */ |
b481de9c ZY |
2273 | set_bit(STATUS_FW_ERROR, &priv->status); |
2274 | ||
2275 | /* Cancel currently queued command. */ | |
2276 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
2277 | ||
0a6857e7 | 2278 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2279 | if (priv->debug_level & IWL_DL_FW_ERRORS) { |
ede0cba4 | 2280 | iwl_dump_nic_error_log(priv); |
189a2b59 | 2281 | iwl_dump_nic_event_log(priv); |
bf403db8 | 2282 | iwl4965_print_rx_config_cmd(priv); |
b481de9c ZY |
2283 | } |
2284 | #endif | |
2285 | ||
2286 | wake_up_interruptible(&priv->wait_command_queue); | |
2287 | ||
2288 | /* Keep the restart process from trying to send host | |
2289 | * commands by clearing the INIT status bit */ | |
2290 | clear_bit(STATUS_READY, &priv->status); | |
2291 | ||
2292 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
f3d67999 | 2293 | IWL_DEBUG(IWL_DL_FW_ERRORS, |
b481de9c ZY |
2294 | "Restarting adapter due to uCode error.\n"); |
2295 | ||
3109ece1 | 2296 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
2297 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
2298 | sizeof(priv->recovery_rxon)); | |
2299 | priv->error_recovering = 1; | |
2300 | } | |
3a1081e8 EK |
2301 | if (priv->cfg->mod_params->restart_fw) |
2302 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
2303 | } |
2304 | } | |
2305 | ||
c79dd5b5 | 2306 | static void iwl4965_error_recovery(struct iwl_priv *priv) |
b481de9c ZY |
2307 | { |
2308 | unsigned long flags; | |
2309 | ||
2310 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
2311 | sizeof(priv->staging_rxon)); | |
2312 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 2313 | iwl4965_commit_rxon(priv); |
b481de9c | 2314 | |
4f40e4d9 | 2315 | iwl_rxon_add_station(priv, priv->bssid, 1); |
b481de9c ZY |
2316 | |
2317 | spin_lock_irqsave(&priv->lock, flags); | |
2318 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
2319 | priv->error_recovering = 0; | |
2320 | spin_unlock_irqrestore(&priv->lock, flags); | |
2321 | } | |
2322 | ||
c79dd5b5 | 2323 | static void iwl4965_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
2324 | { |
2325 | u32 inta, handled = 0; | |
2326 | u32 inta_fh; | |
2327 | unsigned long flags; | |
0a6857e7 | 2328 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
2329 | u32 inta_mask; |
2330 | #endif | |
2331 | ||
2332 | spin_lock_irqsave(&priv->lock, flags); | |
2333 | ||
2334 | /* Ack/clear/reset pending uCode interrupts. | |
2335 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
2336 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
3395f6e9 TW |
2337 | inta = iwl_read32(priv, CSR_INT); |
2338 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
2339 | |
2340 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
2341 | * Any new interrupts that happen after this, either while we're | |
2342 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
3395f6e9 TW |
2343 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
2344 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 2345 | |
0a6857e7 | 2346 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2347 | if (priv->debug_level & IWL_DL_ISR) { |
9fbab516 | 2348 | /* just for debug */ |
3395f6e9 | 2349 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
b481de9c ZY |
2350 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
2351 | inta, inta_mask, inta_fh); | |
2352 | } | |
2353 | #endif | |
2354 | ||
2355 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
2356 | * atomic, make sure that inta covers all the interrupts that | |
2357 | * we've discovered, even if FH interrupt came in just after | |
2358 | * reading CSR_INT. */ | |
6f83eaa1 | 2359 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
b481de9c | 2360 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 2361 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
b481de9c ZY |
2362 | inta |= CSR_INT_BIT_FH_TX; |
2363 | ||
2364 | /* Now service all interrupt bits discovered above. */ | |
2365 | if (inta & CSR_INT_BIT_HW_ERR) { | |
2366 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
2367 | ||
2368 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 2369 | iwl4965_disable_interrupts(priv); |
b481de9c | 2370 | |
bb8c093b | 2371 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
2372 | |
2373 | handled |= CSR_INT_BIT_HW_ERR; | |
2374 | ||
2375 | spin_unlock_irqrestore(&priv->lock, flags); | |
2376 | ||
2377 | return; | |
2378 | } | |
2379 | ||
0a6857e7 | 2380 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2381 | if (priv->debug_level & (IWL_DL_ISR)) { |
b481de9c | 2382 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
2383 | if (inta & CSR_INT_BIT_SCD) |
2384 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
2385 | "the frame/frames.\n"); | |
b481de9c ZY |
2386 | |
2387 | /* Alive notification via Rx interrupt will do the real work */ | |
2388 | if (inta & CSR_INT_BIT_ALIVE) | |
2389 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
2390 | } | |
2391 | #endif | |
2392 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 2393 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 2394 | |
9fbab516 | 2395 | /* HW RF KILL switch toggled */ |
b481de9c ZY |
2396 | if (inta & CSR_INT_BIT_RF_KILL) { |
2397 | int hw_rf_kill = 0; | |
3395f6e9 | 2398 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
2399 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
2400 | hw_rf_kill = 1; | |
2401 | ||
f3d67999 | 2402 | IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n", |
b481de9c ZY |
2403 | hw_rf_kill ? "disable radio":"enable radio"); |
2404 | ||
2405 | /* Queue restart only if RF_KILL switch was set to "kill" | |
2406 | * when we loaded driver, and is now set to "enable". | |
2407 | * After we're Alive, RF_KILL gets handled by | |
3230455d | 2408 | * iwl4965_rx_card_state_notif() */ |
53e49093 ZY |
2409 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) { |
2410 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
b481de9c | 2411 | queue_work(priv->workqueue, &priv->restart); |
53e49093 | 2412 | } |
b481de9c ZY |
2413 | |
2414 | handled |= CSR_INT_BIT_RF_KILL; | |
2415 | } | |
2416 | ||
9fbab516 | 2417 | /* Chip got too hot and stopped itself */ |
b481de9c ZY |
2418 | if (inta & CSR_INT_BIT_CT_KILL) { |
2419 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
2420 | handled |= CSR_INT_BIT_CT_KILL; | |
2421 | } | |
2422 | ||
2423 | /* Error detected by uCode */ | |
2424 | if (inta & CSR_INT_BIT_SW_ERR) { | |
2425 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
2426 | inta); | |
bb8c093b | 2427 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
2428 | handled |= CSR_INT_BIT_SW_ERR; |
2429 | } | |
2430 | ||
2431 | /* uCode wakes up after power-down sleep */ | |
2432 | if (inta & CSR_INT_BIT_WAKEUP) { | |
2433 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
a55360e4 | 2434 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
babcebfa TW |
2435 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
2436 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
2437 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
2438 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
2439 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
2440 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
2441 | |
2442 | handled |= CSR_INT_BIT_WAKEUP; | |
2443 | } | |
2444 | ||
2445 | /* All uCode command responses, including Tx command responses, | |
2446 | * Rx "responses" (frame-received notification), and other | |
2447 | * notifications from uCode come through here*/ | |
2448 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
a55360e4 | 2449 | iwl_rx_handle(priv); |
b481de9c ZY |
2450 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
2451 | } | |
2452 | ||
2453 | if (inta & CSR_INT_BIT_FH_TX) { | |
2454 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
2455 | handled |= CSR_INT_BIT_FH_TX; | |
dbb983b7 RR |
2456 | /* FH finished to write, send event */ |
2457 | priv->ucode_write_complete = 1; | |
2458 | wake_up_interruptible(&priv->wait_command_queue); | |
b481de9c ZY |
2459 | } |
2460 | ||
2461 | if (inta & ~handled) | |
2462 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
2463 | ||
2464 | if (inta & ~CSR_INI_SET_MASK) { | |
2465 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
2466 | inta & ~CSR_INI_SET_MASK); | |
2467 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
2468 | } | |
2469 | ||
2470 | /* Re-enable all interrupts */ | |
0359facc MA |
2471 | /* only Re-enable if diabled by irq */ |
2472 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
2473 | iwl4965_enable_interrupts(priv); | |
b481de9c | 2474 | |
0a6857e7 | 2475 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2476 | if (priv->debug_level & (IWL_DL_ISR)) { |
3395f6e9 TW |
2477 | inta = iwl_read32(priv, CSR_INT); |
2478 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
2479 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
2480 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
2481 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
2482 | } | |
2483 | #endif | |
2484 | spin_unlock_irqrestore(&priv->lock, flags); | |
2485 | } | |
2486 | ||
bb8c093b | 2487 | static irqreturn_t iwl4965_isr(int irq, void *data) |
b481de9c | 2488 | { |
c79dd5b5 | 2489 | struct iwl_priv *priv = data; |
b481de9c ZY |
2490 | u32 inta, inta_mask; |
2491 | u32 inta_fh; | |
2492 | if (!priv) | |
2493 | return IRQ_NONE; | |
2494 | ||
2495 | spin_lock(&priv->lock); | |
2496 | ||
2497 | /* Disable (but don't clear!) interrupts here to avoid | |
2498 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
2499 | * If we have something to service, the tasklet will re-enable ints. | |
2500 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
3395f6e9 TW |
2501 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
2502 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
2503 | |
2504 | /* Discover which interrupts are active/pending */ | |
3395f6e9 TW |
2505 | inta = iwl_read32(priv, CSR_INT); |
2506 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
2507 | |
2508 | /* Ignore interrupt if there's nothing in NIC to service. | |
2509 | * This may be due to IRQ shared with another device, | |
2510 | * or due to sporadic interrupts thrown from our NIC. */ | |
2511 | if (!inta && !inta_fh) { | |
2512 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
2513 | goto none; | |
2514 | } | |
2515 | ||
2516 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
66fbb541 ON |
2517 | /* Hardware disappeared. It might have already raised |
2518 | * an interrupt */ | |
b481de9c | 2519 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); |
66fbb541 | 2520 | goto unplugged; |
b481de9c ZY |
2521 | } |
2522 | ||
2523 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
2524 | inta, inta_mask, inta_fh); | |
2525 | ||
25c03d8e JP |
2526 | inta &= ~CSR_INT_BIT_SCD; |
2527 | ||
bb8c093b | 2528 | /* iwl4965_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
2529 | if (likely(inta || inta_fh)) |
2530 | tasklet_schedule(&priv->irq_tasklet); | |
b481de9c | 2531 | |
66fbb541 ON |
2532 | unplugged: |
2533 | spin_unlock(&priv->lock); | |
b481de9c ZY |
2534 | return IRQ_HANDLED; |
2535 | ||
2536 | none: | |
2537 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
2538 | /* only Re-enable if diabled by irq */ |
2539 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
2540 | iwl4965_enable_interrupts(priv); | |
b481de9c ZY |
2541 | spin_unlock(&priv->lock); |
2542 | return IRQ_NONE; | |
2543 | } | |
2544 | ||
b481de9c ZY |
2545 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
2546 | * sending probe req. This should be set long enough to hear probe responses | |
2547 | * from more than one AP. */ | |
2548 | #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
2549 | #define IWL_ACTIVE_DWELL_TIME_52 (10) | |
2550 | ||
2551 | /* For faster active scanning, scan will move to the next channel if fewer than | |
2552 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
2553 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
2554 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
2555 | * no other traffic). | |
2556 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
2557 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
2558 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */ | |
2559 | ||
2560 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
2561 | * Must be set longer than active dwell time. | |
2562 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
2563 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
2564 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
2565 | #define IWL_PASSIVE_DWELL_BASE (100) | |
2566 | #define IWL_CHANNEL_TUNE_TIME 5 | |
2567 | ||
c79dd5b5 | 2568 | static inline u16 iwl4965_get_active_dwell_time(struct iwl_priv *priv, |
8318d78a | 2569 | enum ieee80211_band band) |
b481de9c | 2570 | { |
8318d78a | 2571 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
2572 | return IWL_ACTIVE_DWELL_TIME_52; |
2573 | else | |
2574 | return IWL_ACTIVE_DWELL_TIME_24; | |
2575 | } | |
2576 | ||
c79dd5b5 | 2577 | static u16 iwl4965_get_passive_dwell_time(struct iwl_priv *priv, |
8318d78a | 2578 | enum ieee80211_band band) |
b481de9c | 2579 | { |
8318d78a JB |
2580 | u16 active = iwl4965_get_active_dwell_time(priv, band); |
2581 | u16 passive = (band != IEEE80211_BAND_5GHZ) ? | |
b481de9c ZY |
2582 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
2583 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
2584 | ||
3109ece1 | 2585 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
2586 | /* If we're associated, we clamp the maximum passive |
2587 | * dwell time to be 98% of the beacon interval (minus | |
2588 | * 2 * channel tune time) */ | |
2589 | passive = priv->beacon_int; | |
2590 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
2591 | passive = IWL_PASSIVE_DWELL_BASE; | |
2592 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
2593 | } | |
2594 | ||
2595 | if (passive <= active) | |
2596 | passive = active + 1; | |
2597 | ||
2598 | return passive; | |
2599 | } | |
2600 | ||
c79dd5b5 | 2601 | static int iwl4965_get_channels_for_scan(struct iwl_priv *priv, |
8318d78a | 2602 | enum ieee80211_band band, |
b481de9c | 2603 | u8 is_active, u8 direct_mask, |
bb8c093b | 2604 | struct iwl4965_scan_channel *scan_ch) |
b481de9c ZY |
2605 | { |
2606 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 2607 | const struct ieee80211_supported_band *sband; |
bf85ea4f | 2608 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
2609 | u16 passive_dwell = 0; |
2610 | u16 active_dwell = 0; | |
2611 | int added, i; | |
2612 | ||
d1141dfb | 2613 | sband = iwl_get_hw_mode(priv, band); |
8318d78a | 2614 | if (!sband) |
b481de9c ZY |
2615 | return 0; |
2616 | ||
8318d78a | 2617 | channels = sband->channels; |
b481de9c | 2618 | |
8318d78a JB |
2619 | active_dwell = iwl4965_get_active_dwell_time(priv, band); |
2620 | passive_dwell = iwl4965_get_passive_dwell_time(priv, band); | |
b481de9c | 2621 | |
8318d78a | 2622 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
2623 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
2624 | continue; | |
2625 | ||
8318d78a | 2626 | scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq); |
b481de9c | 2627 | |
8622e705 | 2628 | ch_info = iwl_get_channel_info(priv, band, |
9fbab516 | 2629 | scan_ch->channel); |
b481de9c ZY |
2630 | if (!is_channel_valid(ch_info)) { |
2631 | IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n", | |
2632 | scan_ch->channel); | |
2633 | continue; | |
2634 | } | |
2635 | ||
2636 | if (!is_active || is_channel_passive(ch_info) || | |
8318d78a | 2637 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) |
b481de9c ZY |
2638 | scan_ch->type = 0; /* passive */ |
2639 | else | |
2640 | scan_ch->type = 1; /* active */ | |
2641 | ||
2642 | if (scan_ch->type & 1) | |
2643 | scan_ch->type |= (direct_mask << 1); | |
2644 | ||
b481de9c ZY |
2645 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
2646 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
2647 | ||
9fbab516 | 2648 | /* Set txpower levels to defaults */ |
b481de9c ZY |
2649 | scan_ch->tpc.dsp_atten = 110; |
2650 | /* scan_pwr_info->tpc.dsp_atten; */ | |
2651 | ||
2652 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 2653 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
2654 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
2655 | else { | |
2656 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
2657 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 2658 | * power level: |
8a1b0245 | 2659 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
2660 | */ |
2661 | } | |
2662 | ||
2663 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
2664 | scan_ch->channel, | |
2665 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
2666 | (scan_ch->type & 1) ? | |
2667 | active_dwell : passive_dwell); | |
2668 | ||
2669 | scan_ch++; | |
2670 | added++; | |
2671 | } | |
2672 | ||
2673 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
2674 | return added; | |
2675 | } | |
2676 | ||
b481de9c ZY |
2677 | /****************************************************************************** |
2678 | * | |
2679 | * uCode download functions | |
2680 | * | |
2681 | ******************************************************************************/ | |
2682 | ||
c79dd5b5 | 2683 | static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 2684 | { |
98c92211 TW |
2685 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
2686 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
2687 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
2688 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
2689 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
2690 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
2691 | } |
2692 | ||
edcdf8b2 RR |
2693 | static void iwl4965_nic_start(struct iwl_priv *priv) |
2694 | { | |
2695 | /* Remove all resets to allow NIC to operate */ | |
2696 | iwl_write32(priv, CSR_RESET, 0); | |
2697 | } | |
2698 | ||
2699 | ||
b481de9c | 2700 | /** |
bb8c093b | 2701 | * iwl4965_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
2702 | * |
2703 | * Copy into buffers for card to fetch via bus-mastering | |
2704 | */ | |
c79dd5b5 | 2705 | static int iwl4965_read_ucode(struct iwl_priv *priv) |
b481de9c | 2706 | { |
bb8c093b | 2707 | struct iwl4965_ucode *ucode; |
90e759d1 | 2708 | int ret; |
b481de9c | 2709 | const struct firmware *ucode_raw; |
4bf775cd | 2710 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
2711 | u8 *src; |
2712 | size_t len; | |
2713 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
2714 | ||
2715 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
2716 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
2717 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
2718 | if (ret < 0) { | |
2719 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
2720 | name, ret); | |
b481de9c ZY |
2721 | goto error; |
2722 | } | |
2723 | ||
2724 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
2725 | name, ucode_raw->size); | |
2726 | ||
2727 | /* Make sure that we got at least our header! */ | |
2728 | if (ucode_raw->size < sizeof(*ucode)) { | |
2729 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 2730 | ret = -EINVAL; |
b481de9c ZY |
2731 | goto err_release; |
2732 | } | |
2733 | ||
2734 | /* Data from ucode file: header followed by uCode images */ | |
2735 | ucode = (void *)ucode_raw->data; | |
2736 | ||
2737 | ver = le32_to_cpu(ucode->ver); | |
2738 | inst_size = le32_to_cpu(ucode->inst_size); | |
2739 | data_size = le32_to_cpu(ucode->data_size); | |
2740 | init_size = le32_to_cpu(ucode->init_size); | |
2741 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
2742 | boot_size = le32_to_cpu(ucode->boot_size); | |
2743 | ||
2744 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
2745 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", | |
2746 | inst_size); | |
2747 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", | |
2748 | data_size); | |
2749 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", | |
2750 | init_size); | |
2751 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", | |
2752 | init_data_size); | |
2753 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", | |
2754 | boot_size); | |
2755 | ||
2756 | /* Verify size of file vs. image size info in file's header */ | |
2757 | if (ucode_raw->size < sizeof(*ucode) + | |
2758 | inst_size + data_size + init_size + | |
2759 | init_data_size + boot_size) { | |
2760 | ||
2761 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
2762 | (int)ucode_raw->size); | |
90e759d1 | 2763 | ret = -EINVAL; |
b481de9c ZY |
2764 | goto err_release; |
2765 | } | |
2766 | ||
2767 | /* Verify that uCode images will fit in card's SRAM */ | |
099b40b7 | 2768 | if (inst_size > priv->hw_params.max_inst_size) { |
90e759d1 TW |
2769 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
2770 | inst_size); | |
2771 | ret = -EINVAL; | |
b481de9c ZY |
2772 | goto err_release; |
2773 | } | |
2774 | ||
099b40b7 | 2775 | if (data_size > priv->hw_params.max_data_size) { |
90e759d1 TW |
2776 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
2777 | data_size); | |
2778 | ret = -EINVAL; | |
b481de9c ZY |
2779 | goto err_release; |
2780 | } | |
099b40b7 | 2781 | if (init_size > priv->hw_params.max_inst_size) { |
b481de9c | 2782 | IWL_DEBUG_INFO |
90e759d1 TW |
2783 | ("uCode init instr len %d too large to fit in\n", |
2784 | init_size); | |
2785 | ret = -EINVAL; | |
b481de9c ZY |
2786 | goto err_release; |
2787 | } | |
099b40b7 | 2788 | if (init_data_size > priv->hw_params.max_data_size) { |
b481de9c | 2789 | IWL_DEBUG_INFO |
90e759d1 TW |
2790 | ("uCode init data len %d too large to fit in\n", |
2791 | init_data_size); | |
2792 | ret = -EINVAL; | |
b481de9c ZY |
2793 | goto err_release; |
2794 | } | |
099b40b7 | 2795 | if (boot_size > priv->hw_params.max_bsm_size) { |
b481de9c | 2796 | IWL_DEBUG_INFO |
90e759d1 TW |
2797 | ("uCode boot instr len %d too large to fit in\n", |
2798 | boot_size); | |
2799 | ret = -EINVAL; | |
b481de9c ZY |
2800 | goto err_release; |
2801 | } | |
2802 | ||
2803 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
2804 | ||
2805 | /* Runtime instructions and 2 copies of data: | |
2806 | * 1) unmodified from disk | |
2807 | * 2) backup cache for save/restore during power-downs */ | |
2808 | priv->ucode_code.len = inst_size; | |
98c92211 | 2809 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
2810 | |
2811 | priv->ucode_data.len = data_size; | |
98c92211 | 2812 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
2813 | |
2814 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 2815 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c ZY |
2816 | |
2817 | /* Initialization instructions and data */ | |
90e759d1 TW |
2818 | if (init_size && init_data_size) { |
2819 | priv->ucode_init.len = init_size; | |
98c92211 | 2820 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
2821 | |
2822 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 2823 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
2824 | |
2825 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
2826 | goto err_pci_alloc; | |
2827 | } | |
b481de9c ZY |
2828 | |
2829 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
2830 | if (boot_size) { |
2831 | priv->ucode_boot.len = boot_size; | |
98c92211 | 2832 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 2833 | |
90e759d1 TW |
2834 | if (!priv->ucode_boot.v_addr) |
2835 | goto err_pci_alloc; | |
2836 | } | |
b481de9c ZY |
2837 | |
2838 | /* Copy images into buffers for card's bus-master reads ... */ | |
2839 | ||
2840 | /* Runtime instructions (first block of data in file) */ | |
2841 | src = &ucode->data[0]; | |
2842 | len = priv->ucode_code.len; | |
90e759d1 | 2843 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
2844 | memcpy(priv->ucode_code.v_addr, src, len); |
2845 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
2846 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
2847 | ||
2848 | /* Runtime data (2nd block) | |
bb8c093b | 2849 | * NOTE: Copy into backup buffer will be done in iwl4965_up() */ |
b481de9c ZY |
2850 | src = &ucode->data[inst_size]; |
2851 | len = priv->ucode_data.len; | |
90e759d1 | 2852 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
2853 | memcpy(priv->ucode_data.v_addr, src, len); |
2854 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
2855 | ||
2856 | /* Initialization instructions (3rd block) */ | |
2857 | if (init_size) { | |
2858 | src = &ucode->data[inst_size + data_size]; | |
2859 | len = priv->ucode_init.len; | |
90e759d1 TW |
2860 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
2861 | len); | |
b481de9c ZY |
2862 | memcpy(priv->ucode_init.v_addr, src, len); |
2863 | } | |
2864 | ||
2865 | /* Initialization data (4th block) */ | |
2866 | if (init_data_size) { | |
2867 | src = &ucode->data[inst_size + data_size + init_size]; | |
2868 | len = priv->ucode_init_data.len; | |
90e759d1 TW |
2869 | IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n", |
2870 | len); | |
b481de9c ZY |
2871 | memcpy(priv->ucode_init_data.v_addr, src, len); |
2872 | } | |
2873 | ||
2874 | /* Bootstrap instructions (5th block) */ | |
2875 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
2876 | len = priv->ucode_boot.len; | |
90e759d1 | 2877 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len); |
b481de9c ZY |
2878 | memcpy(priv->ucode_boot.v_addr, src, len); |
2879 | ||
2880 | /* We have our copies now, allow OS release its copies */ | |
2881 | release_firmware(ucode_raw); | |
2882 | return 0; | |
2883 | ||
2884 | err_pci_alloc: | |
2885 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 2886 | ret = -ENOMEM; |
bb8c093b | 2887 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
2888 | |
2889 | err_release: | |
2890 | release_firmware(ucode_raw); | |
2891 | ||
2892 | error: | |
90e759d1 | 2893 | return ret; |
b481de9c ZY |
2894 | } |
2895 | ||
b481de9c | 2896 | /** |
4a4a9e81 | 2897 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 2898 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 2899 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 2900 | */ |
4a4a9e81 | 2901 | static void iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 2902 | { |
57aab75a | 2903 | int ret = 0; |
b481de9c ZY |
2904 | |
2905 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
2906 | ||
2907 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
2908 | /* We had an error bringing up the hardware, so take it | |
2909 | * all the way back down so we can try again */ | |
2910 | IWL_DEBUG_INFO("Alive failed.\n"); | |
2911 | goto restart; | |
2912 | } | |
2913 | ||
2914 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
2915 | * This is a paranoid check, because we would not have gotten the | |
2916 | * "runtime" alive if code weren't properly loaded. */ | |
b0692f2f | 2917 | if (iwl_verify_ucode(priv)) { |
b481de9c ZY |
2918 | /* Runtime instruction load was bad; |
2919 | * take it all the way back down so we can try again */ | |
2920 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
2921 | goto restart; | |
2922 | } | |
2923 | ||
bf85ea4f | 2924 | iwlcore_clear_stations_table(priv); |
57aab75a TW |
2925 | ret = priv->cfg->ops->lib->alive_notify(priv); |
2926 | if (ret) { | |
b481de9c | 2927 | IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n", |
57aab75a | 2928 | ret); |
b481de9c ZY |
2929 | goto restart; |
2930 | } | |
2931 | ||
9fbab516 | 2932 | /* After the ALIVE response, we can send host commands to 4965 uCode */ |
b481de9c ZY |
2933 | set_bit(STATUS_ALIVE, &priv->status); |
2934 | ||
2935 | /* Clear out the uCode error bit if it is set */ | |
2936 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
2937 | ||
fee1247a | 2938 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
2939 | return; |
2940 | ||
36d6825b | 2941 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
2942 | |
2943 | priv->active_rate = priv->rates_mask; | |
2944 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
2945 | ||
3109ece1 | 2946 | if (iwl_is_associated(priv)) { |
c1adf9fb GG |
2947 | struct iwl_rxon_cmd *active_rxon = |
2948 | (struct iwl_rxon_cmd *)&priv->active_rxon; | |
b481de9c ZY |
2949 | |
2950 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
2951 | sizeof(priv->staging_rxon)); | |
2952 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
2953 | } else { | |
2954 | /* Initialize our rx_config data */ | |
bb8c093b | 2955 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
2956 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2957 | } | |
2958 | ||
9fbab516 | 2959 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 2960 | iwl4965_send_bt_config(priv); |
b481de9c | 2961 | |
4a4a9e81 TW |
2962 | iwl_reset_run_time_calib(priv); |
2963 | ||
b481de9c | 2964 | /* Configure the adapter for unassociated operation */ |
bb8c093b | 2965 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
2966 | |
2967 | /* At this point, the NIC is initialized and operational */ | |
b481de9c | 2968 | iwl4965_rf_kill_ct_config(priv); |
5a66926a | 2969 | |
fe00b5a5 RC |
2970 | iwl_leds_register(priv); |
2971 | ||
b481de9c | 2972 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 2973 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 2974 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
2975 | |
2976 | if (priv->error_recovering) | |
bb8c093b | 2977 | iwl4965_error_recovery(priv); |
b481de9c | 2978 | |
c8381fdc | 2979 | iwlcore_low_level_notify(priv, IWLCORE_START_EVT); |
84363e6e | 2980 | ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); |
b481de9c ZY |
2981 | return; |
2982 | ||
2983 | restart: | |
2984 | queue_work(priv->workqueue, &priv->restart); | |
2985 | } | |
2986 | ||
c79dd5b5 | 2987 | static void iwl4965_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 2988 | |
c79dd5b5 | 2989 | static void __iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
2990 | { |
2991 | unsigned long flags; | |
2992 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c ZY |
2993 | |
2994 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
2995 | ||
b481de9c ZY |
2996 | if (!exit_pending) |
2997 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
2998 | ||
ab53d8af MA |
2999 | iwl_leds_unregister(priv); |
3000 | ||
c8381fdc MA |
3001 | iwlcore_low_level_notify(priv, IWLCORE_STOP_EVT); |
3002 | ||
bf85ea4f | 3003 | iwlcore_clear_stations_table(priv); |
b481de9c ZY |
3004 | |
3005 | /* Unblock any waiting calls */ | |
3006 | wake_up_interruptible_all(&priv->wait_command_queue); | |
3007 | ||
b481de9c ZY |
3008 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
3009 | * exiting the module */ | |
3010 | if (!exit_pending) | |
3011 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
3012 | ||
3013 | /* stop and reset the on-board processor */ | |
3395f6e9 | 3014 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
3015 | |
3016 | /* tell the device to stop sending interrupts */ | |
0359facc | 3017 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 3018 | iwl4965_disable_interrupts(priv); |
0359facc MA |
3019 | spin_unlock_irqrestore(&priv->lock, flags); |
3020 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
3021 | |
3022 | if (priv->mac80211_registered) | |
3023 | ieee80211_stop_queues(priv->hw); | |
3024 | ||
bb8c093b | 3025 | /* If we have not previously called iwl4965_init() then |
b481de9c | 3026 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
fee1247a | 3027 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
3028 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
3029 | STATUS_RF_KILL_HW | | |
3030 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
3031 | STATUS_RF_KILL_SW | | |
9788864e RC |
3032 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
3033 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
3034 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
3035 | STATUS_IN_SUSPEND; | |
3036 | goto exit; | |
3037 | } | |
3038 | ||
3039 | /* ...otherwise clear out all the status bits but the RF Kill and | |
3040 | * SUSPEND bits and continue taking the NIC down. */ | |
3041 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
3042 | STATUS_RF_KILL_HW | | |
3043 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
3044 | STATUS_RF_KILL_SW | | |
9788864e RC |
3045 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
3046 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
3047 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
3048 | STATUS_IN_SUSPEND | | |
3049 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
3050 | STATUS_FW_ERROR; | |
3051 | ||
3052 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 3053 | iwl_clear_bit(priv, CSR_GP_CNTRL, |
9fbab516 | 3054 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
3055 | spin_unlock_irqrestore(&priv->lock, flags); |
3056 | ||
da1bc453 | 3057 | iwl_txq_ctx_stop(priv); |
b3bbacb7 | 3058 | iwl_rxq_stop(priv); |
b481de9c ZY |
3059 | |
3060 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
3061 | if (!iwl_grab_nic_access(priv)) { |
3062 | iwl_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 3063 | APMG_CLK_VAL_DMA_CLK_RQT); |
3395f6e9 | 3064 | iwl_release_nic_access(priv); |
b481de9c ZY |
3065 | } |
3066 | spin_unlock_irqrestore(&priv->lock, flags); | |
3067 | ||
3068 | udelay(5); | |
3069 | ||
7f066108 TW |
3070 | /* FIXME: apm_ops.suspend(priv) */ |
3071 | priv->cfg->ops->lib->apm_ops.reset(priv); | |
399f4900 | 3072 | priv->cfg->ops->lib->free_shared_mem(priv); |
b481de9c ZY |
3073 | |
3074 | exit: | |
885ba202 | 3075 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
3076 | |
3077 | if (priv->ibss_beacon) | |
3078 | dev_kfree_skb(priv->ibss_beacon); | |
3079 | priv->ibss_beacon = NULL; | |
3080 | ||
3081 | /* clear out any free frames */ | |
fcab423d | 3082 | iwl_clear_free_frames(priv); |
b481de9c ZY |
3083 | } |
3084 | ||
c79dd5b5 | 3085 | static void iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
3086 | { |
3087 | mutex_lock(&priv->mutex); | |
bb8c093b | 3088 | __iwl4965_down(priv); |
b481de9c | 3089 | mutex_unlock(&priv->mutex); |
b24d22b1 | 3090 | |
bb8c093b | 3091 | iwl4965_cancel_deferred_work(priv); |
b481de9c ZY |
3092 | } |
3093 | ||
3094 | #define MAX_HW_RESTARTS 5 | |
3095 | ||
c79dd5b5 | 3096 | static int __iwl4965_up(struct iwl_priv *priv) |
b481de9c | 3097 | { |
57aab75a TW |
3098 | int i; |
3099 | int ret; | |
b481de9c ZY |
3100 | |
3101 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
3102 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
3103 | return -EIO; | |
3104 | } | |
3105 | ||
3106 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
3107 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
3108 | "parameter)\n"); | |
ad97edd2 | 3109 | iwl_rfkill_set_hw_state(priv); |
e655b9f0 ZY |
3110 | return -ENODEV; |
3111 | } | |
3112 | ||
e903fbd4 RC |
3113 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
3114 | IWL_ERROR("ucode not available for device bringup\n"); | |
3115 | return -EIO; | |
3116 | } | |
3117 | ||
e655b9f0 | 3118 | /* If platform's RF_KILL switch is NOT set to KILL */ |
3395f6e9 | 3119 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
e655b9f0 ZY |
3120 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
3121 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3122 | else { | |
3123 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3124 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
ad97edd2 | 3125 | iwl_rfkill_set_hw_state(priv); |
e655b9f0 ZY |
3126 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); |
3127 | return -ENODEV; | |
3128 | } | |
b481de9c ZY |
3129 | } |
3130 | ||
ad97edd2 | 3131 | iwl_rfkill_set_hw_state(priv); |
3395f6e9 | 3132 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 3133 | |
399f4900 RR |
3134 | ret = priv->cfg->ops->lib->alloc_shared_mem(priv); |
3135 | if (ret) { | |
3136 | IWL_ERROR("Unable to allocate shared memory\n"); | |
3137 | return ret; | |
3138 | } | |
3139 | ||
1053d35f | 3140 | ret = iwl_hw_nic_init(priv); |
57aab75a TW |
3141 | if (ret) { |
3142 | IWL_ERROR("Unable to init nic\n"); | |
3143 | return ret; | |
b481de9c ZY |
3144 | } |
3145 | ||
3146 | /* make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
3147 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3148 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
3149 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3150 | ||
3151 | /* clear (again), then enable host interrupts */ | |
3395f6e9 | 3152 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
bb8c093b | 3153 | iwl4965_enable_interrupts(priv); |
b481de9c ZY |
3154 | |
3155 | /* really make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
3156 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3157 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
3158 | |
3159 | /* Copy original ucode data image from disk into backup cache. | |
3160 | * This will be used to initialize the on-board processor's | |
3161 | * data SRAM for a clean start when the runtime program first loads. */ | |
3162 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 3163 | priv->ucode_data.len); |
b481de9c | 3164 | |
e655b9f0 ZY |
3165 | /* We return success when we resume from suspend and rf_kill is on. */ |
3166 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
b481de9c | 3167 | return 0; |
b481de9c ZY |
3168 | |
3169 | for (i = 0; i < MAX_HW_RESTARTS; i++) { | |
3170 | ||
bf85ea4f | 3171 | iwlcore_clear_stations_table(priv); |
b481de9c ZY |
3172 | |
3173 | /* load bootstrap state machine, | |
3174 | * load bootstrap program into processor's memory, | |
3175 | * prepare to load the "initialize" uCode */ | |
57aab75a | 3176 | ret = priv->cfg->ops->lib->load_ucode(priv); |
b481de9c | 3177 | |
57aab75a TW |
3178 | if (ret) { |
3179 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret); | |
b481de9c ZY |
3180 | continue; |
3181 | } | |
3182 | ||
3183 | /* start card; "initialize" will load runtime ucode */ | |
edcdf8b2 | 3184 | iwl4965_nic_start(priv); |
b481de9c | 3185 | |
b481de9c ZY |
3186 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
3187 | ||
3188 | return 0; | |
3189 | } | |
3190 | ||
3191 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 3192 | __iwl4965_down(priv); |
b481de9c ZY |
3193 | |
3194 | /* tried to restart and config the device for as long as our | |
3195 | * patience could withstand */ | |
3196 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
3197 | return -EIO; | |
3198 | } | |
3199 | ||
3200 | ||
3201 | /***************************************************************************** | |
3202 | * | |
3203 | * Workqueue callbacks | |
3204 | * | |
3205 | *****************************************************************************/ | |
3206 | ||
4a4a9e81 | 3207 | static void iwl_bg_init_alive_start(struct work_struct *data) |
b481de9c | 3208 | { |
c79dd5b5 TW |
3209 | struct iwl_priv *priv = |
3210 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
3211 | |
3212 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3213 | return; | |
3214 | ||
3215 | mutex_lock(&priv->mutex); | |
f3ccc08c | 3216 | priv->cfg->ops->lib->init_alive_start(priv); |
b481de9c ZY |
3217 | mutex_unlock(&priv->mutex); |
3218 | } | |
3219 | ||
4a4a9e81 | 3220 | static void iwl_bg_alive_start(struct work_struct *data) |
b481de9c | 3221 | { |
c79dd5b5 TW |
3222 | struct iwl_priv *priv = |
3223 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
3224 | |
3225 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3226 | return; | |
3227 | ||
3228 | mutex_lock(&priv->mutex); | |
4a4a9e81 | 3229 | iwl_alive_start(priv); |
b481de9c ZY |
3230 | mutex_unlock(&priv->mutex); |
3231 | } | |
3232 | ||
bb8c093b | 3233 | static void iwl4965_bg_rf_kill(struct work_struct *work) |
b481de9c | 3234 | { |
c79dd5b5 | 3235 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); |
b481de9c ZY |
3236 | |
3237 | wake_up_interruptible(&priv->wait_command_queue); | |
3238 | ||
3239 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3240 | return; | |
3241 | ||
3242 | mutex_lock(&priv->mutex); | |
3243 | ||
fee1247a | 3244 | if (!iwl_is_rfkill(priv)) { |
f3d67999 | 3245 | IWL_DEBUG(IWL_DL_RF_KILL, |
b481de9c ZY |
3246 | "HW and/or SW RF Kill no longer active, restarting " |
3247 | "device\n"); | |
3248 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3249 | queue_work(priv->workqueue, &priv->restart); | |
3250 | } else { | |
ad97edd2 MA |
3251 | /* make sure mac80211 stop sending Tx frame */ |
3252 | if (priv->mac80211_registered) | |
3253 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
3254 | |
3255 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
3256 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
3257 | "disabled by SW switch\n"); | |
3258 | else | |
3259 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
3260 | "Kill switch must be turned off for " | |
3261 | "wireless networking to work.\n"); | |
3262 | } | |
ad97edd2 MA |
3263 | iwl_rfkill_set_hw_state(priv); |
3264 | ||
b481de9c ZY |
3265 | mutex_unlock(&priv->mutex); |
3266 | } | |
3267 | ||
4419e39b AK |
3268 | static void iwl4965_bg_set_monitor(struct work_struct *work) |
3269 | { | |
3270 | struct iwl_priv *priv = container_of(work, | |
3271 | struct iwl_priv, set_monitor); | |
3272 | ||
3273 | IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n"); | |
3274 | ||
3275 | mutex_lock(&priv->mutex); | |
3276 | ||
3277 | if (!iwl_is_ready(priv)) | |
3278 | IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); | |
3279 | else | |
3280 | if (iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0) | |
3281 | IWL_ERROR("iwl4965_set_mode() failed\n"); | |
3282 | ||
3283 | mutex_unlock(&priv->mutex); | |
3284 | } | |
3285 | ||
b481de9c ZY |
3286 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
3287 | ||
bb8c093b | 3288 | static void iwl4965_bg_scan_check(struct work_struct *data) |
b481de9c | 3289 | { |
c79dd5b5 TW |
3290 | struct iwl_priv *priv = |
3291 | container_of(data, struct iwl_priv, scan_check.work); | |
b481de9c ZY |
3292 | |
3293 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3294 | return; | |
3295 | ||
3296 | mutex_lock(&priv->mutex); | |
3297 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
3298 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
f3d67999 EK |
3299 | IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting " |
3300 | "adapter (%dms)\n", | |
3301 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
052c4b9f | 3302 | |
b481de9c | 3303 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 3304 | iwl4965_send_scan_abort(priv); |
b481de9c ZY |
3305 | } |
3306 | mutex_unlock(&priv->mutex); | |
3307 | } | |
3308 | ||
bb8c093b | 3309 | static void iwl4965_bg_request_scan(struct work_struct *data) |
b481de9c | 3310 | { |
c79dd5b5 TW |
3311 | struct iwl_priv *priv = |
3312 | container_of(data, struct iwl_priv, request_scan); | |
857485c0 | 3313 | struct iwl_host_cmd cmd = { |
b481de9c | 3314 | .id = REPLY_SCAN_CMD, |
bb8c093b | 3315 | .len = sizeof(struct iwl4965_scan_cmd), |
b481de9c ZY |
3316 | .meta.flags = CMD_SIZE_HUGE, |
3317 | }; | |
bb8c093b | 3318 | struct iwl4965_scan_cmd *scan; |
b481de9c | 3319 | struct ieee80211_conf *conf = NULL; |
78330fdd | 3320 | u16 cmd_len; |
8318d78a | 3321 | enum ieee80211_band band; |
78330fdd | 3322 | u8 direct_mask; |
857485c0 | 3323 | int ret = 0; |
b481de9c ZY |
3324 | |
3325 | conf = ieee80211_get_hw_conf(priv->hw); | |
3326 | ||
3327 | mutex_lock(&priv->mutex); | |
3328 | ||
fee1247a | 3329 | if (!iwl_is_ready(priv)) { |
b481de9c ZY |
3330 | IWL_WARNING("request scan called when driver not ready.\n"); |
3331 | goto done; | |
3332 | } | |
3333 | ||
3334 | /* Make sure the scan wasn't cancelled before this queued work | |
3335 | * was given the chance to run... */ | |
3336 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
3337 | goto done; | |
3338 | ||
3339 | /* This should never be called or scheduled if there is currently | |
3340 | * a scan active in the hardware. */ | |
3341 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
3342 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
3343 | "Ignoring second request.\n"); | |
857485c0 | 3344 | ret = -EIO; |
b481de9c ZY |
3345 | goto done; |
3346 | } | |
3347 | ||
3348 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
3349 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
3350 | goto done; | |
3351 | } | |
3352 | ||
3353 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3354 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
3355 | goto done; | |
3356 | } | |
3357 | ||
fee1247a | 3358 | if (iwl_is_rfkill(priv)) { |
b481de9c ZY |
3359 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
3360 | goto done; | |
3361 | } | |
3362 | ||
3363 | if (!test_bit(STATUS_READY, &priv->status)) { | |
3364 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
3365 | goto done; | |
3366 | } | |
3367 | ||
3368 | if (!priv->scan_bands) { | |
3369 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
3370 | goto done; | |
3371 | } | |
3372 | ||
3373 | if (!priv->scan) { | |
bb8c093b | 3374 | priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) + |
b481de9c ZY |
3375 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
3376 | if (!priv->scan) { | |
857485c0 | 3377 | ret = -ENOMEM; |
b481de9c ZY |
3378 | goto done; |
3379 | } | |
3380 | } | |
3381 | scan = priv->scan; | |
bb8c093b | 3382 | memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
3383 | |
3384 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
3385 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
3386 | ||
3109ece1 | 3387 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
3388 | u16 interval = 0; |
3389 | u32 extra; | |
3390 | u32 suspend_time = 100; | |
3391 | u32 scan_suspend_time = 100; | |
3392 | unsigned long flags; | |
3393 | ||
3394 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
3395 | ||
3396 | spin_lock_irqsave(&priv->lock, flags); | |
3397 | interval = priv->beacon_int; | |
3398 | spin_unlock_irqrestore(&priv->lock, flags); | |
3399 | ||
3400 | scan->suspend_time = 0; | |
052c4b9f | 3401 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
3402 | if (!interval) |
3403 | interval = suspend_time; | |
3404 | ||
3405 | extra = (suspend_time / interval) << 22; | |
3406 | scan_suspend_time = (extra | | |
3407 | ((suspend_time % interval) * 1024)); | |
3408 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
3409 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
3410 | scan_suspend_time, interval); | |
3411 | } | |
3412 | ||
3413 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
3414 | if (priv->one_direct_scan) { | |
3415 | IWL_DEBUG_SCAN | |
3416 | ("Kicking off one direct scan for '%s'\n", | |
bb8c093b | 3417 | iwl4965_escape_essid(priv->direct_ssid, |
b481de9c ZY |
3418 | priv->direct_ssid_len)); |
3419 | scan->direct_scan[0].id = WLAN_EID_SSID; | |
3420 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
3421 | memcpy(scan->direct_scan[0].ssid, | |
3422 | priv->direct_ssid, priv->direct_ssid_len); | |
3423 | direct_mask = 1; | |
3109ece1 | 3424 | } else if (!iwl_is_associated(priv) && priv->essid_len) { |
786b4557 BM |
3425 | IWL_DEBUG_SCAN |
3426 | ("Kicking off one direct scan for '%s' when not associated\n", | |
3427 | iwl4965_escape_essid(priv->essid, priv->essid_len)); | |
b481de9c ZY |
3428 | scan->direct_scan[0].id = WLAN_EID_SSID; |
3429 | scan->direct_scan[0].len = priv->essid_len; | |
3430 | memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len); | |
3431 | direct_mask = 1; | |
857485c0 | 3432 | } else { |
786b4557 | 3433 | IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); |
b481de9c | 3434 | direct_mask = 0; |
857485c0 | 3435 | } |
b481de9c | 3436 | |
b481de9c | 3437 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
5425e490 | 3438 | scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; |
b481de9c ZY |
3439 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
3440 | ||
b481de9c ZY |
3441 | |
3442 | switch (priv->scan_bands) { | |
3443 | case 2: | |
3444 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; | |
3445 | scan->tx_cmd.rate_n_flags = | |
bb8c093b | 3446 | iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP, |
b481de9c ZY |
3447 | RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK); |
3448 | ||
3449 | scan->good_CRC_th = 0; | |
8318d78a | 3450 | band = IEEE80211_BAND_2GHZ; |
b481de9c ZY |
3451 | break; |
3452 | ||
3453 | case 1: | |
3454 | scan->tx_cmd.rate_n_flags = | |
bb8c093b | 3455 | iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP, |
b481de9c ZY |
3456 | RATE_MCS_ANT_B_MSK); |
3457 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 3458 | band = IEEE80211_BAND_5GHZ; |
b481de9c ZY |
3459 | break; |
3460 | ||
3461 | default: | |
3462 | IWL_WARNING("Invalid scan band count\n"); | |
3463 | goto done; | |
3464 | } | |
3465 | ||
78330fdd TW |
3466 | /* We don't build a direct scan probe request; the uCode will do |
3467 | * that based on the direct_mask added to each channel entry */ | |
3468 | cmd_len = iwl4965_fill_probe_req(priv, band, | |
3469 | (struct ieee80211_mgmt *)scan->data, | |
3470 | IWL_MAX_SCAN_SIZE - sizeof(*scan), 0); | |
3471 | ||
3472 | scan->tx_cmd.len = cpu_to_le16(cmd_len); | |
b481de9c ZY |
3473 | /* select Rx chains */ |
3474 | ||
3475 | /* Force use of chains B and C (0x6) for scan Rx. | |
3476 | * Avoid A (0x1) because of its off-channel reception on A-band. | |
3477 | * MIMO is not used here, but value is required to make uCode happy. */ | |
3478 | scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK | | |
3479 | cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) | | |
3480 | (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) | | |
3481 | (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS)); | |
3482 | ||
3483 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) | |
3484 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; | |
3485 | ||
786b4557 | 3486 | if (direct_mask) |
26c0f03f RC |
3487 | scan->channel_count = |
3488 | iwl4965_get_channels_for_scan( | |
3489 | priv, band, 1, /* active */ | |
3490 | direct_mask, | |
3491 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
786b4557 | 3492 | else |
26c0f03f RC |
3493 | scan->channel_count = |
3494 | iwl4965_get_channels_for_scan( | |
3495 | priv, band, 0, /* passive */ | |
3496 | direct_mask, | |
3497 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c | 3498 | |
5da4b55f MA |
3499 | scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK | |
3500 | RXON_FILTER_BCON_AWARE_MSK); | |
b481de9c | 3501 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 3502 | scan->channel_count * sizeof(struct iwl4965_scan_channel); |
b481de9c ZY |
3503 | cmd.data = scan; |
3504 | scan->len = cpu_to_le16(cmd.len); | |
3505 | ||
3506 | set_bit(STATUS_SCAN_HW, &priv->status); | |
857485c0 TW |
3507 | ret = iwl_send_cmd_sync(priv, &cmd); |
3508 | if (ret) | |
b481de9c ZY |
3509 | goto done; |
3510 | ||
3511 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
3512 | IWL_SCAN_CHECK_WATCHDOG); | |
3513 | ||
3514 | mutex_unlock(&priv->mutex); | |
3515 | return; | |
3516 | ||
3517 | done: | |
01ebd063 | 3518 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
3519 | queue_work(priv->workqueue, &priv->scan_completed); |
3520 | mutex_unlock(&priv->mutex); | |
3521 | } | |
3522 | ||
bb8c093b | 3523 | static void iwl4965_bg_up(struct work_struct *data) |
b481de9c | 3524 | { |
c79dd5b5 | 3525 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
3526 | |
3527 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3528 | return; | |
3529 | ||
3530 | mutex_lock(&priv->mutex); | |
bb8c093b | 3531 | __iwl4965_up(priv); |
b481de9c ZY |
3532 | mutex_unlock(&priv->mutex); |
3533 | } | |
3534 | ||
bb8c093b | 3535 | static void iwl4965_bg_restart(struct work_struct *data) |
b481de9c | 3536 | { |
c79dd5b5 | 3537 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
3538 | |
3539 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3540 | return; | |
3541 | ||
bb8c093b | 3542 | iwl4965_down(priv); |
b481de9c ZY |
3543 | queue_work(priv->workqueue, &priv->up); |
3544 | } | |
3545 | ||
bb8c093b | 3546 | static void iwl4965_bg_rx_replenish(struct work_struct *data) |
b481de9c | 3547 | { |
c79dd5b5 TW |
3548 | struct iwl_priv *priv = |
3549 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
3550 | |
3551 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3552 | return; | |
3553 | ||
3554 | mutex_lock(&priv->mutex); | |
a55360e4 | 3555 | iwl_rx_replenish(priv); |
b481de9c ZY |
3556 | mutex_unlock(&priv->mutex); |
3557 | } | |
3558 | ||
7878a5a4 MA |
3559 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
3560 | ||
508e32e1 | 3561 | static void iwl4965_post_associate(struct iwl_priv *priv) |
b481de9c | 3562 | { |
b481de9c | 3563 | struct ieee80211_conf *conf = NULL; |
857485c0 | 3564 | int ret = 0; |
0795af57 | 3565 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
3566 | |
3567 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
3568 | IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__); | |
3569 | return; | |
3570 | } | |
3571 | ||
0795af57 JP |
3572 | IWL_DEBUG_ASSOC("Associated as %d to: %s\n", |
3573 | priv->assoc_id, | |
3574 | print_mac(mac, priv->active_rxon.bssid_addr)); | |
b481de9c ZY |
3575 | |
3576 | ||
3577 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3578 | return; | |
3579 | ||
b481de9c | 3580 | |
508e32e1 | 3581 | if (!priv->vif || !priv->is_open) |
948c171c | 3582 | return; |
508e32e1 | 3583 | |
bb8c093b | 3584 | iwl4965_scan_cancel_timeout(priv, 200); |
052c4b9f | 3585 | |
b481de9c ZY |
3586 | conf = ieee80211_get_hw_conf(priv->hw); |
3587 | ||
3588 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 3589 | iwl4965_commit_rxon(priv); |
b481de9c | 3590 | |
bb8c093b CH |
3591 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
3592 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 3593 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 3594 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 3595 | if (ret) |
b481de9c ZY |
3596 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
3597 | "Attempting to continue.\n"); | |
3598 | ||
3599 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
3600 | ||
c8b0e6e1 | 3601 | #ifdef CONFIG_IWL4965_HT |
fd105e79 | 3602 | if (priv->current_ht_config.is_ht) |
47c5196e | 3603 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
c8b0e6e1 | 3604 | #endif /* CONFIG_IWL4965_HT*/ |
c7de35cd | 3605 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
3606 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
3607 | ||
3608 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
3609 | priv->assoc_id, priv->beacon_int); | |
3610 | ||
3611 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
3612 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
3613 | else | |
3614 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
3615 | ||
3616 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
3617 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
3618 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
3619 | else | |
3620 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
3621 | ||
3622 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
3623 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
3624 | ||
3625 | } | |
3626 | ||
bb8c093b | 3627 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3628 | |
3629 | switch (priv->iw_mode) { | |
3630 | case IEEE80211_IF_TYPE_STA: | |
bb8c093b | 3631 | iwl4965_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
3632 | break; |
3633 | ||
3634 | case IEEE80211_IF_TYPE_IBSS: | |
3635 | ||
3636 | /* clear out the station table */ | |
bf85ea4f | 3637 | iwlcore_clear_stations_table(priv); |
b481de9c | 3638 | |
4f40e4d9 TW |
3639 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
3640 | iwl_rxon_add_station(priv, priv->bssid, 0); | |
bb8c093b CH |
3641 | iwl4965_rate_scale_init(priv->hw, IWL_STA_ID); |
3642 | iwl4965_send_beacon_cmd(priv); | |
b481de9c ZY |
3643 | |
3644 | break; | |
3645 | ||
3646 | default: | |
3647 | IWL_ERROR("%s Should not be called in %d mode\n", | |
3648 | __FUNCTION__, priv->iw_mode); | |
3649 | break; | |
3650 | } | |
3651 | ||
bb8c093b | 3652 | iwl4965_sequence_reset(priv); |
b481de9c | 3653 | |
b481de9c | 3654 | /* Enable Rx differential gain and sensitivity calibrations */ |
f0832f13 | 3655 | iwl_chain_noise_reset(priv); |
b481de9c | 3656 | priv->start_calib = 1; |
b481de9c ZY |
3657 | |
3658 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
3659 | priv->assoc_station_added = 1; | |
3660 | ||
bb8c093b | 3661 | iwl4965_activate_qos(priv, 0); |
292ae174 | 3662 | |
5da4b55f | 3663 | iwl_power_update_mode(priv, 0); |
7878a5a4 MA |
3664 | /* we have just associated, don't start scan too early */ |
3665 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
508e32e1 RC |
3666 | } |
3667 | ||
3668 | ||
3669 | static void iwl4965_bg_post_associate(struct work_struct *data) | |
3670 | { | |
3671 | struct iwl_priv *priv = container_of(data, struct iwl_priv, | |
3672 | post_associate.work); | |
3673 | ||
3674 | mutex_lock(&priv->mutex); | |
3675 | iwl4965_post_associate(priv); | |
b481de9c | 3676 | mutex_unlock(&priv->mutex); |
508e32e1 | 3677 | |
b481de9c ZY |
3678 | } |
3679 | ||
bb8c093b | 3680 | static void iwl4965_bg_abort_scan(struct work_struct *work) |
b481de9c | 3681 | { |
c79dd5b5 | 3682 | struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan); |
b481de9c | 3683 | |
fee1247a | 3684 | if (!iwl_is_ready(priv)) |
b481de9c ZY |
3685 | return; |
3686 | ||
3687 | mutex_lock(&priv->mutex); | |
3688 | ||
3689 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 3690 | iwl4965_send_scan_abort(priv); |
b481de9c ZY |
3691 | |
3692 | mutex_unlock(&priv->mutex); | |
3693 | } | |
3694 | ||
76bb77e0 ZY |
3695 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
3696 | ||
bb8c093b | 3697 | static void iwl4965_bg_scan_completed(struct work_struct *work) |
b481de9c | 3698 | { |
c79dd5b5 TW |
3699 | struct iwl_priv *priv = |
3700 | container_of(work, struct iwl_priv, scan_completed); | |
b481de9c | 3701 | |
f3d67999 | 3702 | IWL_DEBUG(IWL_DL_SCAN, "SCAN complete scan\n"); |
b481de9c ZY |
3703 | |
3704 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3705 | return; | |
3706 | ||
a0646470 ZY |
3707 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
3708 | iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw)); | |
76bb77e0 | 3709 | |
b481de9c ZY |
3710 | ieee80211_scan_completed(priv->hw); |
3711 | ||
3712 | /* Since setting the TXPOWER may have been deferred while | |
3713 | * performing the scan, fire one off */ | |
3714 | mutex_lock(&priv->mutex); | |
bb8c093b | 3715 | iwl4965_hw_reg_send_txpower(priv); |
b481de9c ZY |
3716 | mutex_unlock(&priv->mutex); |
3717 | } | |
3718 | ||
3719 | /***************************************************************************** | |
3720 | * | |
3721 | * mac80211 entry point functions | |
3722 | * | |
3723 | *****************************************************************************/ | |
3724 | ||
5a66926a ZY |
3725 | #define UCODE_READY_TIMEOUT (2 * HZ) |
3726 | ||
bb8c093b | 3727 | static int iwl4965_mac_start(struct ieee80211_hw *hw) |
b481de9c | 3728 | { |
c79dd5b5 | 3729 | struct iwl_priv *priv = hw->priv; |
5a66926a | 3730 | int ret; |
b481de9c ZY |
3731 | |
3732 | IWL_DEBUG_MAC80211("enter\n"); | |
3733 | ||
5a66926a ZY |
3734 | if (pci_enable_device(priv->pci_dev)) { |
3735 | IWL_ERROR("Fail to pci_enable_device\n"); | |
3736 | return -ENODEV; | |
3737 | } | |
3738 | pci_restore_state(priv->pci_dev); | |
3739 | pci_enable_msi(priv->pci_dev); | |
3740 | ||
3741 | ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED, | |
3742 | DRV_NAME, priv); | |
3743 | if (ret) { | |
3744 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
3745 | goto out_disable_msi; | |
3746 | } | |
3747 | ||
b481de9c ZY |
3748 | /* we should be verifying the device is ready to be opened */ |
3749 | mutex_lock(&priv->mutex); | |
3750 | ||
c1adf9fb | 3751 | memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); |
5a66926a ZY |
3752 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
3753 | * ucode filename and max sizes are card-specific. */ | |
b481de9c | 3754 | |
5a66926a ZY |
3755 | if (!priv->ucode_code.len) { |
3756 | ret = iwl4965_read_ucode(priv); | |
3757 | if (ret) { | |
3758 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
3759 | mutex_unlock(&priv->mutex); | |
3760 | goto out_release_irq; | |
3761 | } | |
3762 | } | |
b481de9c | 3763 | |
e655b9f0 | 3764 | ret = __iwl4965_up(priv); |
5a66926a | 3765 | |
b481de9c | 3766 | mutex_unlock(&priv->mutex); |
5a66926a | 3767 | |
e655b9f0 ZY |
3768 | if (ret) |
3769 | goto out_release_irq; | |
3770 | ||
3771 | IWL_DEBUG_INFO("Start UP work done.\n"); | |
3772 | ||
3773 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
3774 | return 0; | |
3775 | ||
fe9b6b72 | 3776 | /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from |
5a66926a | 3777 | * mac80211 will not be run successfully. */ |
fe9b6b72 RR |
3778 | if (priv->ucode_type == UCODE_RT) { |
3779 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
3780 | test_bit(STATUS_READY, &priv->status), | |
3781 | UCODE_READY_TIMEOUT); | |
3782 | if (!ret) { | |
3783 | if (!test_bit(STATUS_READY, &priv->status)) { | |
3784 | IWL_ERROR("START_ALIVE timeout after %dms.\n", | |
3785 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
3786 | ret = -ETIMEDOUT; | |
3787 | goto out_release_irq; | |
3788 | } | |
5a66926a | 3789 | } |
5a66926a | 3790 | |
fe9b6b72 RR |
3791 | priv->is_open = 1; |
3792 | } | |
b481de9c ZY |
3793 | IWL_DEBUG_MAC80211("leave\n"); |
3794 | return 0; | |
5a66926a ZY |
3795 | |
3796 | out_release_irq: | |
3797 | free_irq(priv->pci_dev->irq, priv); | |
3798 | out_disable_msi: | |
3799 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
3800 | pci_disable_device(priv->pci_dev); |
3801 | priv->is_open = 0; | |
3802 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 3803 | return ret; |
b481de9c ZY |
3804 | } |
3805 | ||
bb8c093b | 3806 | static void iwl4965_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 3807 | { |
c79dd5b5 | 3808 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3809 | |
3810 | IWL_DEBUG_MAC80211("enter\n"); | |
948c171c | 3811 | |
e655b9f0 ZY |
3812 | if (!priv->is_open) { |
3813 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
3814 | return; | |
3815 | } | |
3816 | ||
b481de9c | 3817 | priv->is_open = 0; |
5a66926a | 3818 | |
fee1247a | 3819 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
3820 | /* stop mac, cancel any scan request and clear |
3821 | * RXON_FILTER_ASSOC_MSK BIT | |
3822 | */ | |
5a66926a ZY |
3823 | mutex_lock(&priv->mutex); |
3824 | iwl4965_scan_cancel_timeout(priv, 100); | |
3825 | cancel_delayed_work(&priv->post_associate); | |
fde3571f | 3826 | mutex_unlock(&priv->mutex); |
fde3571f MA |
3827 | } |
3828 | ||
5a66926a ZY |
3829 | iwl4965_down(priv); |
3830 | ||
3831 | flush_workqueue(priv->workqueue); | |
3832 | free_irq(priv->pci_dev->irq, priv); | |
3833 | pci_disable_msi(priv->pci_dev); | |
3834 | pci_save_state(priv->pci_dev); | |
3835 | pci_disable_device(priv->pci_dev); | |
948c171c | 3836 | |
b481de9c | 3837 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
3838 | } |
3839 | ||
e039fa4a | 3840 | static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3841 | { |
c79dd5b5 | 3842 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3843 | |
3844 | IWL_DEBUG_MAC80211("enter\n"); | |
3845 | ||
3846 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
3847 | IWL_DEBUG_MAC80211("leave - monitor\n"); | |
3848 | return -1; | |
3849 | } | |
3850 | ||
3851 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, | |
e039fa4a | 3852 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 3853 | |
e039fa4a | 3854 | if (iwl_tx_skb(priv, skb)) |
b481de9c ZY |
3855 | dev_kfree_skb_any(skb); |
3856 | ||
3857 | IWL_DEBUG_MAC80211("leave\n"); | |
3858 | return 0; | |
3859 | } | |
3860 | ||
bb8c093b | 3861 | static int iwl4965_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
3862 | struct ieee80211_if_init_conf *conf) |
3863 | { | |
c79dd5b5 | 3864 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3865 | unsigned long flags; |
0795af57 | 3866 | DECLARE_MAC_BUF(mac); |
b481de9c | 3867 | |
32bfd35d | 3868 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 3869 | |
32bfd35d JB |
3870 | if (priv->vif) { |
3871 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
75849d28 | 3872 | return -EOPNOTSUPP; |
b481de9c ZY |
3873 | } |
3874 | ||
3875 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 3876 | priv->vif = conf->vif; |
b481de9c ZY |
3877 | |
3878 | spin_unlock_irqrestore(&priv->lock, flags); | |
3879 | ||
3880 | mutex_lock(&priv->mutex); | |
864792e3 TW |
3881 | |
3882 | if (conf->mac_addr) { | |
3883 | IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr)); | |
3884 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); | |
3885 | } | |
b481de9c | 3886 | |
fee1247a | 3887 | if (iwl_is_ready(priv)) |
5a66926a ZY |
3888 | iwl4965_set_mode(priv, conf->type); |
3889 | ||
b481de9c ZY |
3890 | mutex_unlock(&priv->mutex); |
3891 | ||
5a66926a | 3892 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
3893 | return 0; |
3894 | } | |
3895 | ||
3896 | /** | |
bb8c093b | 3897 | * iwl4965_mac_config - mac80211 config callback |
b481de9c ZY |
3898 | * |
3899 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
3900 | * be set inappropriately and the driver currently sets the hardware up to | |
3901 | * use it whenever needed. | |
3902 | */ | |
bb8c093b | 3903 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) |
b481de9c | 3904 | { |
c79dd5b5 | 3905 | struct iwl_priv *priv = hw->priv; |
bf85ea4f | 3906 | const struct iwl_channel_info *ch_info; |
b481de9c | 3907 | unsigned long flags; |
76bb77e0 | 3908 | int ret = 0; |
b481de9c ZY |
3909 | |
3910 | mutex_lock(&priv->mutex); | |
8318d78a | 3911 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 3912 | |
12342c47 ZY |
3913 | priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
3914 | ||
fee1247a | 3915 | if (!iwl_is_ready(priv)) { |
b481de9c | 3916 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
3917 | ret = -EIO; |
3918 | goto out; | |
b481de9c ZY |
3919 | } |
3920 | ||
1ea87396 | 3921 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
b481de9c | 3922 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
3923 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
3924 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 3925 | mutex_unlock(&priv->mutex); |
a0646470 | 3926 | return 0; |
b481de9c ZY |
3927 | } |
3928 | ||
3929 | spin_lock_irqsave(&priv->lock, flags); | |
3930 | ||
8622e705 | 3931 | ch_info = iwl_get_channel_info(priv, conf->channel->band, |
8318d78a | 3932 | ieee80211_frequency_to_channel(conf->channel->center_freq)); |
b481de9c | 3933 | if (!is_channel_valid(ch_info)) { |
b481de9c ZY |
3934 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
3935 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
3936 | ret = -EINVAL; |
3937 | goto out; | |
b481de9c ZY |
3938 | } |
3939 | ||
c8b0e6e1 | 3940 | #ifdef CONFIG_IWL4965_HT |
78330fdd | 3941 | /* if we are switching from ht to 2.4 clear flags |
b481de9c ZY |
3942 | * from any ht related info since 2.4 does not |
3943 | * support ht */ | |
78330fdd | 3944 | if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel->hw_value) |
b481de9c ZY |
3945 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH |
3946 | && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) | |
3947 | #endif | |
3948 | ) | |
3949 | priv->staging_rxon.flags = 0; | |
c8b0e6e1 | 3950 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 3951 | |
c7de35cd | 3952 | iwl_set_rxon_channel(priv, conf->channel->band, |
8318d78a | 3953 | ieee80211_frequency_to_channel(conf->channel->center_freq)); |
b481de9c | 3954 | |
8318d78a | 3955 | iwl4965_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
3956 | |
3957 | /* The list of supported rates and rate mask can be different | |
8318d78a | 3958 | * for each band; since the band may have changed, reset |
b481de9c | 3959 | * the rate mask to what mac80211 lists */ |
bb8c093b | 3960 | iwl4965_set_rate(priv); |
b481de9c ZY |
3961 | |
3962 | spin_unlock_irqrestore(&priv->lock, flags); | |
3963 | ||
3964 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
3965 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 3966 | iwl4965_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 3967 | goto out; |
b481de9c ZY |
3968 | } |
3969 | #endif | |
3970 | ||
ad97edd2 MA |
3971 | if (priv->cfg->ops->lib->radio_kill_sw) |
3972 | priv->cfg->ops->lib->radio_kill_sw(priv, !conf->radio_enabled); | |
b481de9c ZY |
3973 | |
3974 | if (!conf->radio_enabled) { | |
3975 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 3976 | goto out; |
b481de9c ZY |
3977 | } |
3978 | ||
fee1247a | 3979 | if (iwl_is_rfkill(priv)) { |
b481de9c | 3980 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
3981 | ret = -EIO; |
3982 | goto out; | |
b481de9c ZY |
3983 | } |
3984 | ||
bb8c093b | 3985 | iwl4965_set_rate(priv); |
b481de9c ZY |
3986 | |
3987 | if (memcmp(&priv->active_rxon, | |
3988 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 3989 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3990 | else |
3991 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
3992 | ||
3993 | IWL_DEBUG_MAC80211("leave\n"); | |
3994 | ||
a0646470 ZY |
3995 | out: |
3996 | clear_bit(STATUS_CONF_PENDING, &priv->status); | |
5a66926a | 3997 | mutex_unlock(&priv->mutex); |
76bb77e0 | 3998 | return ret; |
b481de9c ZY |
3999 | } |
4000 | ||
c79dd5b5 | 4001 | static void iwl4965_config_ap(struct iwl_priv *priv) |
b481de9c | 4002 | { |
857485c0 | 4003 | int ret = 0; |
b481de9c | 4004 | |
d986bcd1 | 4005 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
4006 | return; |
4007 | ||
4008 | /* The following should be done only at AP bring up */ | |
4009 | if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) { | |
4010 | ||
4011 | /* RXON - unassoc (to set timing command) */ | |
4012 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4013 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4014 | |
4015 | /* RXON Timing */ | |
bb8c093b CH |
4016 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
4017 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 4018 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 4019 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 4020 | if (ret) |
b481de9c ZY |
4021 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
4022 | "Attempting to continue.\n"); | |
4023 | ||
c7de35cd | 4024 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
4025 | |
4026 | /* FIXME: what should be the assoc_id for AP? */ | |
4027 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
4028 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
4029 | priv->staging_rxon.flags |= | |
4030 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
4031 | else | |
4032 | priv->staging_rxon.flags &= | |
4033 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
4034 | ||
4035 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
4036 | if (priv->assoc_capability & | |
4037 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
4038 | priv->staging_rxon.flags |= | |
4039 | RXON_FLG_SHORT_SLOT_MSK; | |
4040 | else | |
4041 | priv->staging_rxon.flags &= | |
4042 | ~RXON_FLG_SHORT_SLOT_MSK; | |
4043 | ||
4044 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
4045 | priv->staging_rxon.flags &= | |
4046 | ~RXON_FLG_SHORT_SLOT_MSK; | |
4047 | } | |
4048 | /* restore RXON assoc */ | |
4049 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 4050 | iwl4965_commit_rxon(priv); |
bb8c093b | 4051 | iwl4965_activate_qos(priv, 1); |
4f40e4d9 | 4052 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
e1493deb | 4053 | } |
bb8c093b | 4054 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
4055 | |
4056 | /* FIXME - we need to add code here to detect a totally new | |
4057 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
4058 | * clear sta table, add BCAST sta... */ | |
4059 | } | |
4060 | ||
32bfd35d JB |
4061 | static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, |
4062 | struct ieee80211_vif *vif, | |
b481de9c ZY |
4063 | struct ieee80211_if_conf *conf) |
4064 | { | |
c79dd5b5 | 4065 | struct iwl_priv *priv = hw->priv; |
0795af57 | 4066 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
4067 | unsigned long flags; |
4068 | int rc; | |
4069 | ||
4070 | if (conf == NULL) | |
4071 | return -EIO; | |
4072 | ||
b716bb91 EG |
4073 | if (priv->vif != vif) { |
4074 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
4075 | return 0; |
4076 | } | |
4077 | ||
b481de9c ZY |
4078 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && |
4079 | (!conf->beacon || !conf->ssid_len)) { | |
4080 | IWL_DEBUG_MAC80211 | |
4081 | ("Leaving in AP mode because HostAPD is not ready.\n"); | |
4082 | return 0; | |
4083 | } | |
4084 | ||
fee1247a | 4085 | if (!iwl_is_alive(priv)) |
5a66926a ZY |
4086 | return -EAGAIN; |
4087 | ||
b481de9c ZY |
4088 | mutex_lock(&priv->mutex); |
4089 | ||
b481de9c | 4090 | if (conf->bssid) |
0795af57 JP |
4091 | IWL_DEBUG_MAC80211("bssid: %s\n", |
4092 | print_mac(mac, conf->bssid)); | |
b481de9c | 4093 | |
4150c572 JB |
4094 | /* |
4095 | * very dubious code was here; the probe filtering flag is never set: | |
4096 | * | |
b481de9c ZY |
4097 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
4098 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 4099 | */ |
b481de9c ZY |
4100 | |
4101 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
4102 | if (!conf->bssid) { | |
4103 | conf->bssid = priv->mac_addr; | |
4104 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
0795af57 JP |
4105 | IWL_DEBUG_MAC80211("bssid was set to: %s\n", |
4106 | print_mac(mac, conf->bssid)); | |
b481de9c ZY |
4107 | } |
4108 | if (priv->ibss_beacon) | |
4109 | dev_kfree_skb(priv->ibss_beacon); | |
4110 | ||
4111 | priv->ibss_beacon = conf->beacon; | |
4112 | } | |
4113 | ||
fee1247a | 4114 | if (iwl_is_rfkill(priv)) |
fde3571f MA |
4115 | goto done; |
4116 | ||
b481de9c ZY |
4117 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
4118 | !is_multicast_ether_addr(conf->bssid)) { | |
4119 | /* If there is currently a HW scan going on in the background | |
4120 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 4121 | if (iwl4965_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
4122 | IWL_WARNING("Aborted scan still in progress " |
4123 | "after 100ms\n"); | |
4124 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
4125 | mutex_unlock(&priv->mutex); | |
4126 | return -EAGAIN; | |
4127 | } | |
4128 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
4129 | ||
4130 | /* TODO: Audit driver for usage of these members and see | |
4131 | * if mac80211 deprecates them (priv->bssid looks like it | |
4132 | * shouldn't be there, but I haven't scanned the IBSS code | |
4133 | * to verify) - jpk */ | |
4134 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
4135 | ||
4136 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 4137 | iwl4965_config_ap(priv); |
b481de9c | 4138 | else { |
bb8c093b | 4139 | rc = iwl4965_commit_rxon(priv); |
b481de9c | 4140 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc) |
4f40e4d9 | 4141 | iwl_rxon_add_station( |
b481de9c ZY |
4142 | priv, priv->active_rxon.bssid_addr, 1); |
4143 | } | |
4144 | ||
4145 | } else { | |
bb8c093b | 4146 | iwl4965_scan_cancel_timeout(priv, 100); |
b481de9c | 4147 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 4148 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4149 | } |
4150 | ||
fde3571f | 4151 | done: |
b481de9c ZY |
4152 | spin_lock_irqsave(&priv->lock, flags); |
4153 | if (!conf->ssid_len) | |
4154 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
4155 | else | |
4156 | memcpy(priv->essid, conf->ssid, conf->ssid_len); | |
4157 | ||
4158 | priv->essid_len = conf->ssid_len; | |
4159 | spin_unlock_irqrestore(&priv->lock, flags); | |
4160 | ||
4161 | IWL_DEBUG_MAC80211("leave\n"); | |
4162 | mutex_unlock(&priv->mutex); | |
4163 | ||
4164 | return 0; | |
4165 | } | |
4166 | ||
bb8c093b | 4167 | static void iwl4965_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
4168 | unsigned int changed_flags, |
4169 | unsigned int *total_flags, | |
4170 | int mc_count, struct dev_addr_list *mc_list) | |
4171 | { | |
4172 | /* | |
4173 | * XXX: dummy | |
bb8c093b | 4174 | * see also iwl4965_connection_init_rx_config |
4150c572 | 4175 | */ |
4419e39b AK |
4176 | struct iwl_priv *priv = hw->priv; |
4177 | int new_flags = 0; | |
4178 | if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
4179 | if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
4180 | IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n", | |
4181 | IEEE80211_IF_TYPE_MNTR, | |
4182 | changed_flags, *total_flags); | |
4183 | /* queue work 'cuz mac80211 is holding a lock which | |
4184 | * prevents us from issuing (synchronous) f/w cmds */ | |
4185 | queue_work(priv->workqueue, &priv->set_monitor); | |
4186 | new_flags &= FIF_PROMISC_IN_BSS | | |
4187 | FIF_OTHER_BSS | | |
4188 | FIF_ALLMULTI; | |
4189 | } | |
4190 | } | |
4191 | *total_flags = new_flags; | |
4150c572 JB |
4192 | } |
4193 | ||
bb8c093b | 4194 | static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
4195 | struct ieee80211_if_init_conf *conf) |
4196 | { | |
c79dd5b5 | 4197 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4198 | |
4199 | IWL_DEBUG_MAC80211("enter\n"); | |
4200 | ||
4201 | mutex_lock(&priv->mutex); | |
948c171c | 4202 | |
fee1247a | 4203 | if (iwl_is_ready_rf(priv)) { |
fde3571f MA |
4204 | iwl4965_scan_cancel_timeout(priv, 100); |
4205 | cancel_delayed_work(&priv->post_associate); | |
4206 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
4207 | iwl4965_commit_rxon(priv); | |
4208 | } | |
32bfd35d JB |
4209 | if (priv->vif == conf->vif) { |
4210 | priv->vif = NULL; | |
b481de9c ZY |
4211 | memset(priv->bssid, 0, ETH_ALEN); |
4212 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
4213 | priv->essid_len = 0; | |
4214 | } | |
4215 | mutex_unlock(&priv->mutex); | |
4216 | ||
4217 | IWL_DEBUG_MAC80211("leave\n"); | |
4218 | ||
4219 | } | |
471b3efd | 4220 | |
3109ece1 | 4221 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
471b3efd JB |
4222 | static void iwl4965_bss_info_changed(struct ieee80211_hw *hw, |
4223 | struct ieee80211_vif *vif, | |
4224 | struct ieee80211_bss_conf *bss_conf, | |
4225 | u32 changes) | |
220173b0 | 4226 | { |
c79dd5b5 | 4227 | struct iwl_priv *priv = hw->priv; |
220173b0 | 4228 | |
3109ece1 TW |
4229 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); |
4230 | ||
471b3efd | 4231 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
3109ece1 TW |
4232 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", |
4233 | bss_conf->use_short_preamble); | |
471b3efd | 4234 | if (bss_conf->use_short_preamble) |
220173b0 TW |
4235 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
4236 | else | |
4237 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
4238 | } | |
4239 | ||
471b3efd | 4240 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
3109ece1 | 4241 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); |
8318d78a | 4242 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
220173b0 TW |
4243 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
4244 | else | |
4245 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
4246 | } | |
4247 | ||
98952d5d | 4248 | if (changes & BSS_CHANGED_HT) { |
3109ece1 | 4249 | IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht); |
98952d5d | 4250 | iwl4965_ht_conf(priv, bss_conf); |
c7de35cd | 4251 | iwl_set_rxon_chain(priv); |
98952d5d TW |
4252 | } |
4253 | ||
471b3efd | 4254 | if (changes & BSS_CHANGED_ASSOC) { |
3109ece1 | 4255 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); |
508e32e1 RC |
4256 | /* This should never happen as this function should |
4257 | * never be called from interrupt context. */ | |
4258 | if (WARN_ON_ONCE(in_interrupt())) | |
4259 | return; | |
3109ece1 TW |
4260 | if (bss_conf->assoc) { |
4261 | priv->assoc_id = bss_conf->aid; | |
4262 | priv->beacon_int = bss_conf->beacon_int; | |
4263 | priv->timestamp = bss_conf->timestamp; | |
4264 | priv->assoc_capability = bss_conf->assoc_capability; | |
4265 | priv->next_scan_jiffies = jiffies + | |
4266 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
508e32e1 RC |
4267 | mutex_lock(&priv->mutex); |
4268 | iwl4965_post_associate(priv); | |
4269 | mutex_unlock(&priv->mutex); | |
3109ece1 TW |
4270 | } else { |
4271 | priv->assoc_id = 0; | |
4272 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
4273 | } | |
4274 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { | |
4275 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
7e8c519e | 4276 | iwl_send_rxon_assoc(priv); |
471b3efd JB |
4277 | } |
4278 | ||
220173b0 | 4279 | } |
b481de9c | 4280 | |
bb8c093b | 4281 | static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
4282 | { |
4283 | int rc = 0; | |
4284 | unsigned long flags; | |
c79dd5b5 | 4285 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4286 | |
4287 | IWL_DEBUG_MAC80211("enter\n"); | |
4288 | ||
052c4b9f | 4289 | mutex_lock(&priv->mutex); |
b481de9c ZY |
4290 | spin_lock_irqsave(&priv->lock, flags); |
4291 | ||
fee1247a | 4292 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4293 | rc = -EIO; |
4294 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
4295 | goto out_unlock; | |
4296 | } | |
4297 | ||
4298 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */ | |
4299 | rc = -EIO; | |
4300 | IWL_ERROR("ERROR: APs don't scan\n"); | |
4301 | goto out_unlock; | |
4302 | } | |
4303 | ||
7878a5a4 MA |
4304 | /* we don't schedule scan within next_scan_jiffies period */ |
4305 | if (priv->next_scan_jiffies && | |
4306 | time_after(priv->next_scan_jiffies, jiffies)) { | |
4307 | rc = -EAGAIN; | |
4308 | goto out_unlock; | |
4309 | } | |
b481de9c | 4310 | /* if we just finished scan ask for delay */ |
7878a5a4 MA |
4311 | if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies + |
4312 | IWL_DELAY_NEXT_SCAN, jiffies)) { | |
b481de9c ZY |
4313 | rc = -EAGAIN; |
4314 | goto out_unlock; | |
4315 | } | |
4316 | if (len) { | |
7878a5a4 | 4317 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
bb8c093b | 4318 | iwl4965_escape_essid(ssid, len), (int)len); |
b481de9c ZY |
4319 | |
4320 | priv->one_direct_scan = 1; | |
4321 | priv->direct_ssid_len = (u8) | |
4322 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
4323 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
948c171c MA |
4324 | } else |
4325 | priv->one_direct_scan = 0; | |
b481de9c | 4326 | |
bb8c093b | 4327 | rc = iwl4965_scan_initiate(priv); |
b481de9c ZY |
4328 | |
4329 | IWL_DEBUG_MAC80211("leave\n"); | |
4330 | ||
4331 | out_unlock: | |
4332 | spin_unlock_irqrestore(&priv->lock, flags); | |
052c4b9f | 4333 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
4334 | |
4335 | return rc; | |
4336 | } | |
4337 | ||
ab885f8c EG |
4338 | static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, |
4339 | struct ieee80211_key_conf *keyconf, const u8 *addr, | |
4340 | u32 iv32, u16 *phase1key) | |
4341 | { | |
4342 | struct iwl_priv *priv = hw->priv; | |
4343 | u8 sta_id = IWL_INVALID_STATION; | |
4344 | unsigned long flags; | |
4345 | __le16 key_flags = 0; | |
4346 | int i; | |
4347 | DECLARE_MAC_BUF(mac); | |
4348 | ||
4349 | IWL_DEBUG_MAC80211("enter\n"); | |
4350 | ||
947b13a7 | 4351 | sta_id = iwl_find_station(priv, addr); |
ab885f8c EG |
4352 | if (sta_id == IWL_INVALID_STATION) { |
4353 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
4354 | print_mac(mac, addr)); | |
4355 | return; | |
4356 | } | |
4357 | ||
4358 | iwl4965_scan_cancel_timeout(priv, 100); | |
4359 | ||
4360 | key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); | |
4361 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
4362 | key_flags &= ~STA_KEY_FLG_INVALID; | |
4363 | ||
5425e490 | 4364 | if (sta_id == priv->hw_params.bcast_sta_id) |
ab885f8c EG |
4365 | key_flags |= STA_KEY_MULTICAST_MSK; |
4366 | ||
4367 | spin_lock_irqsave(&priv->sta_lock, flags); | |
4368 | ||
ab885f8c EG |
4369 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
4370 | priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; | |
4371 | ||
4372 | for (i = 0; i < 5; i++) | |
4373 | priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = | |
4374 | cpu_to_le16(phase1key[i]); | |
4375 | ||
4376 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
4377 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
4378 | ||
133636de | 4379 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
ab885f8c EG |
4380 | |
4381 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
4382 | ||
4383 | IWL_DEBUG_MAC80211("leave\n"); | |
4384 | } | |
4385 | ||
bb8c093b | 4386 | static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
4387 | const u8 *local_addr, const u8 *addr, |
4388 | struct ieee80211_key_conf *key) | |
4389 | { | |
c79dd5b5 | 4390 | struct iwl_priv *priv = hw->priv; |
0795af57 | 4391 | DECLARE_MAC_BUF(mac); |
deb09c43 EG |
4392 | int ret = 0; |
4393 | u8 sta_id = IWL_INVALID_STATION; | |
6974e363 | 4394 | u8 is_default_wep_key = 0; |
b481de9c ZY |
4395 | |
4396 | IWL_DEBUG_MAC80211("enter\n"); | |
4397 | ||
099b40b7 | 4398 | if (priv->hw_params.sw_crypto) { |
b481de9c ZY |
4399 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
4400 | return -EOPNOTSUPP; | |
4401 | } | |
4402 | ||
4403 | if (is_zero_ether_addr(addr)) | |
4404 | /* only support pairwise keys */ | |
4405 | return -EOPNOTSUPP; | |
4406 | ||
947b13a7 | 4407 | sta_id = iwl_find_station(priv, addr); |
6974e363 EG |
4408 | if (sta_id == IWL_INVALID_STATION) { |
4409 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
4410 | print_mac(mac, addr)); | |
4411 | return -EINVAL; | |
b481de9c | 4412 | |
deb09c43 | 4413 | } |
b481de9c | 4414 | |
6974e363 | 4415 | mutex_lock(&priv->mutex); |
bb8c093b | 4416 | iwl4965_scan_cancel_timeout(priv, 100); |
6974e363 EG |
4417 | mutex_unlock(&priv->mutex); |
4418 | ||
4419 | /* If we are getting WEP group key and we didn't receive any key mapping | |
4420 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
4421 | * in 1X mode. | |
4422 | * In legacy wep mode, we use another host command to the uCode */ | |
5425e490 | 4423 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
6974e363 EG |
4424 | priv->iw_mode != IEEE80211_IF_TYPE_AP) { |
4425 | if (cmd == SET_KEY) | |
4426 | is_default_wep_key = !priv->key_mapping_key; | |
4427 | else | |
ccc038ab EG |
4428 | is_default_wep_key = |
4429 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 4430 | } |
052c4b9f | 4431 | |
b481de9c | 4432 | switch (cmd) { |
deb09c43 | 4433 | case SET_KEY: |
6974e363 EG |
4434 | if (is_default_wep_key) |
4435 | ret = iwl_set_default_wep_key(priv, key); | |
deb09c43 | 4436 | else |
7480513f | 4437 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
4438 | |
4439 | IWL_DEBUG_MAC80211("enable hwcrypto key\n"); | |
b481de9c ZY |
4440 | break; |
4441 | case DISABLE_KEY: | |
6974e363 EG |
4442 | if (is_default_wep_key) |
4443 | ret = iwl_remove_default_wep_key(priv, key); | |
deb09c43 | 4444 | else |
3ec47732 | 4445 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
4446 | |
4447 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); | |
b481de9c ZY |
4448 | break; |
4449 | default: | |
deb09c43 | 4450 | ret = -EINVAL; |
b481de9c ZY |
4451 | } |
4452 | ||
4453 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c | 4454 | |
deb09c43 | 4455 | return ret; |
b481de9c ZY |
4456 | } |
4457 | ||
e100bb64 | 4458 | static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
4459 | const struct ieee80211_tx_queue_params *params) |
4460 | { | |
c79dd5b5 | 4461 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4462 | unsigned long flags; |
4463 | int q; | |
b481de9c ZY |
4464 | |
4465 | IWL_DEBUG_MAC80211("enter\n"); | |
4466 | ||
fee1247a | 4467 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4468 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4469 | return -EIO; | |
4470 | } | |
4471 | ||
4472 | if (queue >= AC_NUM) { | |
4473 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
4474 | return 0; | |
4475 | } | |
4476 | ||
b481de9c ZY |
4477 | if (!priv->qos_data.qos_enable) { |
4478 | priv->qos_data.qos_active = 0; | |
4479 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
4480 | return 0; | |
4481 | } | |
4482 | q = AC_NUM - 1 - queue; | |
4483 | ||
4484 | spin_lock_irqsave(&priv->lock, flags); | |
4485 | ||
4486 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
4487 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
4488 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
4489 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 4490 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
4491 | |
4492 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
4493 | priv->qos_data.qos_active = 1; | |
4494 | ||
4495 | spin_unlock_irqrestore(&priv->lock, flags); | |
4496 | ||
4497 | mutex_lock(&priv->mutex); | |
4498 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 4499 | iwl4965_activate_qos(priv, 1); |
3109ece1 | 4500 | else if (priv->assoc_id && iwl_is_associated(priv)) |
bb8c093b | 4501 | iwl4965_activate_qos(priv, 0); |
b481de9c ZY |
4502 | |
4503 | mutex_unlock(&priv->mutex); | |
4504 | ||
b481de9c ZY |
4505 | IWL_DEBUG_MAC80211("leave\n"); |
4506 | return 0; | |
4507 | } | |
4508 | ||
bb8c093b | 4509 | static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
4510 | struct ieee80211_tx_queue_stats *stats) |
4511 | { | |
c79dd5b5 | 4512 | struct iwl_priv *priv = hw->priv; |
b481de9c | 4513 | int i, avail; |
16466903 | 4514 | struct iwl_tx_queue *txq; |
443cfd45 | 4515 | struct iwl_queue *q; |
b481de9c ZY |
4516 | unsigned long flags; |
4517 | ||
4518 | IWL_DEBUG_MAC80211("enter\n"); | |
4519 | ||
fee1247a | 4520 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4521 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4522 | return -EIO; | |
4523 | } | |
4524 | ||
4525 | spin_lock_irqsave(&priv->lock, flags); | |
4526 | ||
4527 | for (i = 0; i < AC_NUM; i++) { | |
4528 | txq = &priv->txq[i]; | |
4529 | q = &txq->q; | |
443cfd45 | 4530 | avail = iwl_queue_space(q); |
b481de9c | 4531 | |
57ffc589 JB |
4532 | stats[i].len = q->n_window - avail; |
4533 | stats[i].limit = q->n_window - q->high_mark; | |
4534 | stats[i].count = q->n_window; | |
b481de9c ZY |
4535 | |
4536 | } | |
4537 | spin_unlock_irqrestore(&priv->lock, flags); | |
4538 | ||
4539 | IWL_DEBUG_MAC80211("leave\n"); | |
4540 | ||
4541 | return 0; | |
4542 | } | |
4543 | ||
bb8c093b | 4544 | static int iwl4965_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
4545 | struct ieee80211_low_level_stats *stats) |
4546 | { | |
bf403db8 EK |
4547 | struct iwl_priv *priv = hw->priv; |
4548 | ||
4549 | priv = hw->priv; | |
b481de9c ZY |
4550 | IWL_DEBUG_MAC80211("enter\n"); |
4551 | IWL_DEBUG_MAC80211("leave\n"); | |
4552 | ||
4553 | return 0; | |
4554 | } | |
4555 | ||
bb8c093b | 4556 | static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw) |
b481de9c | 4557 | { |
bf403db8 EK |
4558 | struct iwl_priv *priv; |
4559 | ||
4560 | priv = hw->priv; | |
b481de9c ZY |
4561 | IWL_DEBUG_MAC80211("enter\n"); |
4562 | IWL_DEBUG_MAC80211("leave\n"); | |
4563 | ||
4564 | return 0; | |
4565 | } | |
4566 | ||
bb8c093b | 4567 | static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 4568 | { |
c79dd5b5 | 4569 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4570 | unsigned long flags; |
4571 | ||
4572 | mutex_lock(&priv->mutex); | |
4573 | IWL_DEBUG_MAC80211("enter\n"); | |
4574 | ||
4575 | priv->lq_mngr.lq_ready = 0; | |
c8b0e6e1 | 4576 | #ifdef CONFIG_IWL4965_HT |
b481de9c | 4577 | spin_lock_irqsave(&priv->lock, flags); |
fd105e79 | 4578 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); |
b481de9c | 4579 | spin_unlock_irqrestore(&priv->lock, flags); |
c8b0e6e1 | 4580 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 4581 | |
c7de35cd | 4582 | iwl_reset_qos(priv); |
b481de9c ZY |
4583 | |
4584 | cancel_delayed_work(&priv->post_associate); | |
4585 | ||
4586 | spin_lock_irqsave(&priv->lock, flags); | |
4587 | priv->assoc_id = 0; | |
4588 | priv->assoc_capability = 0; | |
b481de9c ZY |
4589 | priv->assoc_station_added = 0; |
4590 | ||
4591 | /* new association get rid of ibss beacon skb */ | |
4592 | if (priv->ibss_beacon) | |
4593 | dev_kfree_skb(priv->ibss_beacon); | |
4594 | ||
4595 | priv->ibss_beacon = NULL; | |
4596 | ||
4597 | priv->beacon_int = priv->hw->conf.beacon_int; | |
3109ece1 | 4598 | priv->timestamp = 0; |
b481de9c ZY |
4599 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA)) |
4600 | priv->beacon_int = 0; | |
4601 | ||
4602 | spin_unlock_irqrestore(&priv->lock, flags); | |
4603 | ||
fee1247a | 4604 | if (!iwl_is_ready_rf(priv)) { |
fde3571f MA |
4605 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
4606 | mutex_unlock(&priv->mutex); | |
4607 | return; | |
4608 | } | |
4609 | ||
052c4b9f | 4610 | /* we are restarting association process |
4611 | * clear RXON_FILTER_ASSOC_MSK bit | |
4612 | */ | |
4613 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
bb8c093b | 4614 | iwl4965_scan_cancel_timeout(priv, 100); |
052c4b9f | 4615 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 4616 | iwl4965_commit_rxon(priv); |
052c4b9f | 4617 | } |
4618 | ||
5da4b55f MA |
4619 | iwl_power_update_mode(priv, 0); |
4620 | ||
b481de9c ZY |
4621 | /* Per mac80211.h: This is only used in IBSS mode... */ |
4622 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
052c4b9f | 4623 | |
b481de9c ZY |
4624 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
4625 | mutex_unlock(&priv->mutex); | |
4626 | return; | |
4627 | } | |
4628 | ||
bb8c093b | 4629 | iwl4965_set_rate(priv); |
b481de9c ZY |
4630 | |
4631 | mutex_unlock(&priv->mutex); | |
4632 | ||
4633 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
4634 | } |
4635 | ||
e039fa4a | 4636 | static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 4637 | { |
c79dd5b5 | 4638 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4639 | unsigned long flags; |
4640 | ||
4641 | mutex_lock(&priv->mutex); | |
4642 | IWL_DEBUG_MAC80211("enter\n"); | |
4643 | ||
fee1247a | 4644 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4645 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4646 | mutex_unlock(&priv->mutex); | |
4647 | return -EIO; | |
4648 | } | |
4649 | ||
4650 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
4651 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); | |
4652 | mutex_unlock(&priv->mutex); | |
4653 | return -EIO; | |
4654 | } | |
4655 | ||
4656 | spin_lock_irqsave(&priv->lock, flags); | |
4657 | ||
4658 | if (priv->ibss_beacon) | |
4659 | dev_kfree_skb(priv->ibss_beacon); | |
4660 | ||
4661 | priv->ibss_beacon = skb; | |
4662 | ||
4663 | priv->assoc_id = 0; | |
4664 | ||
4665 | IWL_DEBUG_MAC80211("leave\n"); | |
4666 | spin_unlock_irqrestore(&priv->lock, flags); | |
4667 | ||
c7de35cd | 4668 | iwl_reset_qos(priv); |
b481de9c ZY |
4669 | |
4670 | queue_work(priv->workqueue, &priv->post_associate.work); | |
4671 | ||
4672 | mutex_unlock(&priv->mutex); | |
4673 | ||
4674 | return 0; | |
4675 | } | |
4676 | ||
b481de9c ZY |
4677 | /***************************************************************************** |
4678 | * | |
4679 | * sysfs attributes | |
4680 | * | |
4681 | *****************************************************************************/ | |
4682 | ||
0a6857e7 | 4683 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
4684 | |
4685 | /* | |
4686 | * The following adds a new attribute to the sysfs representation | |
4687 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
4688 | * used for controlling the debug level. | |
4689 | * | |
4690 | * See the level definitions in iwl for details. | |
4691 | */ | |
4692 | ||
8cf769c6 EK |
4693 | static ssize_t show_debug_level(struct device *d, |
4694 | struct device_attribute *attr, char *buf) | |
b481de9c | 4695 | { |
8cf769c6 EK |
4696 | struct iwl_priv *priv = d->driver_data; |
4697 | ||
4698 | return sprintf(buf, "0x%08X\n", priv->debug_level); | |
b481de9c | 4699 | } |
8cf769c6 EK |
4700 | static ssize_t store_debug_level(struct device *d, |
4701 | struct device_attribute *attr, | |
b481de9c ZY |
4702 | const char *buf, size_t count) |
4703 | { | |
8cf769c6 | 4704 | struct iwl_priv *priv = d->driver_data; |
b481de9c ZY |
4705 | char *p = (char *)buf; |
4706 | u32 val; | |
4707 | ||
4708 | val = simple_strtoul(p, &p, 0); | |
4709 | if (p == buf) | |
4710 | printk(KERN_INFO DRV_NAME | |
4711 | ": %s is not in hex or decimal form.\n", buf); | |
4712 | else | |
8cf769c6 | 4713 | priv->debug_level = val; |
b481de9c ZY |
4714 | |
4715 | return strnlen(buf, count); | |
4716 | } | |
4717 | ||
8cf769c6 EK |
4718 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
4719 | show_debug_level, store_debug_level); | |
4720 | ||
b481de9c | 4721 | |
0a6857e7 | 4722 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 4723 | |
b481de9c | 4724 | |
bc6f59bc TW |
4725 | static ssize_t show_version(struct device *d, |
4726 | struct device_attribute *attr, char *buf) | |
4727 | { | |
4728 | struct iwl_priv *priv = d->driver_data; | |
885ba202 | 4729 | struct iwl_alive_resp *palive = &priv->card_alive; |
bc6f59bc TW |
4730 | |
4731 | if (palive->is_valid) | |
4732 | return sprintf(buf, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" | |
4733 | "fw type: 0x%01X 0x%01X\n", | |
4734 | palive->ucode_major, palive->ucode_minor, | |
4735 | palive->sw_rev[0], palive->sw_rev[1], | |
4736 | palive->ver_type, palive->ver_subtype); | |
4737 | ||
4738 | else | |
4739 | return sprintf(buf, "fw not loaded\n"); | |
4740 | } | |
4741 | ||
4742 | static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); | |
4743 | ||
b481de9c ZY |
4744 | static ssize_t show_temperature(struct device *d, |
4745 | struct device_attribute *attr, char *buf) | |
4746 | { | |
c79dd5b5 | 4747 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 4748 | |
fee1247a | 4749 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4750 | return -EAGAIN; |
4751 | ||
bb8c093b | 4752 | return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv)); |
b481de9c ZY |
4753 | } |
4754 | ||
4755 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
4756 | ||
4757 | static ssize_t show_rs_window(struct device *d, | |
4758 | struct device_attribute *attr, | |
4759 | char *buf) | |
4760 | { | |
c79dd5b5 | 4761 | struct iwl_priv *priv = d->driver_data; |
bb8c093b | 4762 | return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID); |
b481de9c ZY |
4763 | } |
4764 | static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL); | |
4765 | ||
4766 | static ssize_t show_tx_power(struct device *d, | |
4767 | struct device_attribute *attr, char *buf) | |
4768 | { | |
c79dd5b5 | 4769 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4770 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
4771 | } | |
4772 | ||
4773 | static ssize_t store_tx_power(struct device *d, | |
4774 | struct device_attribute *attr, | |
4775 | const char *buf, size_t count) | |
4776 | { | |
c79dd5b5 | 4777 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4778 | char *p = (char *)buf; |
4779 | u32 val; | |
4780 | ||
4781 | val = simple_strtoul(p, &p, 10); | |
4782 | if (p == buf) | |
4783 | printk(KERN_INFO DRV_NAME | |
4784 | ": %s is not in decimal form.\n", buf); | |
4785 | else | |
bb8c093b | 4786 | iwl4965_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
4787 | |
4788 | return count; | |
4789 | } | |
4790 | ||
4791 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
4792 | ||
4793 | static ssize_t show_flags(struct device *d, | |
4794 | struct device_attribute *attr, char *buf) | |
4795 | { | |
c79dd5b5 | 4796 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4797 | |
4798 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
4799 | } | |
4800 | ||
4801 | static ssize_t store_flags(struct device *d, | |
4802 | struct device_attribute *attr, | |
4803 | const char *buf, size_t count) | |
4804 | { | |
c79dd5b5 | 4805 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4806 | u32 flags = simple_strtoul(buf, NULL, 0); |
4807 | ||
4808 | mutex_lock(&priv->mutex); | |
4809 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
4810 | /* Cancel any currently running scans... */ | |
bb8c093b | 4811 | if (iwl4965_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
4812 | IWL_WARNING("Could not cancel scan.\n"); |
4813 | else { | |
4814 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
4815 | flags); | |
4816 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 4817 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4818 | } |
4819 | } | |
4820 | mutex_unlock(&priv->mutex); | |
4821 | ||
4822 | return count; | |
4823 | } | |
4824 | ||
4825 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
4826 | ||
4827 | static ssize_t show_filter_flags(struct device *d, | |
4828 | struct device_attribute *attr, char *buf) | |
4829 | { | |
c79dd5b5 | 4830 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4831 | |
4832 | return sprintf(buf, "0x%04X\n", | |
4833 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
4834 | } | |
4835 | ||
4836 | static ssize_t store_filter_flags(struct device *d, | |
4837 | struct device_attribute *attr, | |
4838 | const char *buf, size_t count) | |
4839 | { | |
c79dd5b5 | 4840 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4841 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
4842 | ||
4843 | mutex_lock(&priv->mutex); | |
4844 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
4845 | /* Cancel any currently running scans... */ | |
bb8c093b | 4846 | if (iwl4965_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
4847 | IWL_WARNING("Could not cancel scan.\n"); |
4848 | else { | |
4849 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
4850 | "0x%04X\n", filter_flags); | |
4851 | priv->staging_rxon.filter_flags = | |
4852 | cpu_to_le32(filter_flags); | |
bb8c093b | 4853 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4854 | } |
4855 | } | |
4856 | mutex_unlock(&priv->mutex); | |
4857 | ||
4858 | return count; | |
4859 | } | |
4860 | ||
4861 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
4862 | store_filter_flags); | |
4863 | ||
c8b0e6e1 | 4864 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
4865 | |
4866 | static ssize_t show_measurement(struct device *d, | |
4867 | struct device_attribute *attr, char *buf) | |
4868 | { | |
c79dd5b5 | 4869 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 4870 | struct iwl4965_spectrum_notification measure_report; |
b481de9c ZY |
4871 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
4872 | u8 *data = (u8 *) & measure_report; | |
4873 | unsigned long flags; | |
4874 | ||
4875 | spin_lock_irqsave(&priv->lock, flags); | |
4876 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
4877 | spin_unlock_irqrestore(&priv->lock, flags); | |
4878 | return 0; | |
4879 | } | |
4880 | memcpy(&measure_report, &priv->measure_report, size); | |
4881 | priv->measurement_status = 0; | |
4882 | spin_unlock_irqrestore(&priv->lock, flags); | |
4883 | ||
4884 | while (size && (PAGE_SIZE - len)) { | |
4885 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
4886 | PAGE_SIZE - len, 1); | |
4887 | len = strlen(buf); | |
4888 | if (PAGE_SIZE - len) | |
4889 | buf[len++] = '\n'; | |
4890 | ||
4891 | ofs += 16; | |
4892 | size -= min(size, 16U); | |
4893 | } | |
4894 | ||
4895 | return len; | |
4896 | } | |
4897 | ||
4898 | static ssize_t store_measurement(struct device *d, | |
4899 | struct device_attribute *attr, | |
4900 | const char *buf, size_t count) | |
4901 | { | |
c79dd5b5 | 4902 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4903 | struct ieee80211_measurement_params params = { |
4904 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
4905 | .start_time = cpu_to_le64(priv->last_tsf), | |
4906 | .duration = cpu_to_le16(1), | |
4907 | }; | |
4908 | u8 type = IWL_MEASURE_BASIC; | |
4909 | u8 buffer[32]; | |
4910 | u8 channel; | |
4911 | ||
4912 | if (count) { | |
4913 | char *p = buffer; | |
4914 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
4915 | channel = simple_strtoul(p, NULL, 0); | |
4916 | if (channel) | |
4917 | params.channel = channel; | |
4918 | ||
4919 | p = buffer; | |
4920 | while (*p && *p != ' ') | |
4921 | p++; | |
4922 | if (*p) | |
4923 | type = simple_strtoul(p + 1, NULL, 0); | |
4924 | } | |
4925 | ||
4926 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
4927 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 4928 | iwl4965_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
4929 | |
4930 | return count; | |
4931 | } | |
4932 | ||
4933 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
4934 | show_measurement, store_measurement); | |
c8b0e6e1 | 4935 | #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */ |
b481de9c ZY |
4936 | |
4937 | static ssize_t store_retry_rate(struct device *d, | |
4938 | struct device_attribute *attr, | |
4939 | const char *buf, size_t count) | |
4940 | { | |
c79dd5b5 | 4941 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4942 | |
4943 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
4944 | if (priv->retry_rate <= 0) | |
4945 | priv->retry_rate = 1; | |
4946 | ||
4947 | return count; | |
4948 | } | |
4949 | ||
4950 | static ssize_t show_retry_rate(struct device *d, | |
4951 | struct device_attribute *attr, char *buf) | |
4952 | { | |
c79dd5b5 | 4953 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4954 | return sprintf(buf, "%d", priv->retry_rate); |
4955 | } | |
4956 | ||
4957 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
4958 | store_retry_rate); | |
4959 | ||
4960 | static ssize_t store_power_level(struct device *d, | |
4961 | struct device_attribute *attr, | |
4962 | const char *buf, size_t count) | |
4963 | { | |
c79dd5b5 | 4964 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4965 | int rc; |
4966 | int mode; | |
4967 | ||
4968 | mode = simple_strtoul(buf, NULL, 0); | |
4969 | mutex_lock(&priv->mutex); | |
4970 | ||
fee1247a | 4971 | if (!iwl_is_ready(priv)) { |
b481de9c ZY |
4972 | rc = -EAGAIN; |
4973 | goto out; | |
4974 | } | |
4975 | ||
5da4b55f MA |
4976 | rc = iwl_power_set_user_mode(priv, mode); |
4977 | if (rc) { | |
4978 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
4979 | goto out; | |
b481de9c | 4980 | } |
b481de9c ZY |
4981 | rc = count; |
4982 | ||
4983 | out: | |
4984 | mutex_unlock(&priv->mutex); | |
4985 | return rc; | |
4986 | } | |
4987 | ||
4988 | #define MAX_WX_STRING 80 | |
4989 | ||
4990 | /* Values are in microsecond */ | |
4991 | static const s32 timeout_duration[] = { | |
4992 | 350000, | |
4993 | 250000, | |
4994 | 75000, | |
4995 | 37000, | |
4996 | 25000, | |
4997 | }; | |
4998 | static const s32 period_duration[] = { | |
4999 | 400000, | |
5000 | 700000, | |
5001 | 1000000, | |
5002 | 1000000, | |
5003 | 1000000 | |
5004 | }; | |
5005 | ||
5006 | static ssize_t show_power_level(struct device *d, | |
5007 | struct device_attribute *attr, char *buf) | |
5008 | { | |
c79dd5b5 | 5009 | struct iwl_priv *priv = dev_get_drvdata(d); |
5da4b55f | 5010 | int level = priv->power_data.power_mode; |
b481de9c ZY |
5011 | char *p = buf; |
5012 | ||
5013 | p += sprintf(p, "%d ", level); | |
5014 | switch (level) { | |
5015 | case IWL_POWER_MODE_CAM: | |
5016 | case IWL_POWER_AC: | |
5017 | p += sprintf(p, "(AC)"); | |
5018 | break; | |
5019 | case IWL_POWER_BATTERY: | |
5020 | p += sprintf(p, "(BATTERY)"); | |
5021 | break; | |
5022 | default: | |
5023 | p += sprintf(p, | |
5024 | "(Timeout %dms, Period %dms)", | |
5025 | timeout_duration[level - 1] / 1000, | |
5026 | period_duration[level - 1] / 1000); | |
5027 | } | |
5da4b55f | 5028 | /* |
b481de9c ZY |
5029 | if (!(priv->power_mode & IWL_POWER_ENABLED)) |
5030 | p += sprintf(p, " OFF\n"); | |
5031 | else | |
5032 | p += sprintf(p, " \n"); | |
5da4b55f MA |
5033 | */ |
5034 | p += sprintf(p, " \n"); | |
b481de9c | 5035 | return (p - buf + 1); |
b481de9c ZY |
5036 | } |
5037 | ||
5038 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
5039 | store_power_level); | |
5040 | ||
5041 | static ssize_t show_channels(struct device *d, | |
5042 | struct device_attribute *attr, char *buf) | |
5043 | { | |
8318d78a JB |
5044 | /* all this shit doesn't belong into sysfs anyway */ |
5045 | return 0; | |
b481de9c ZY |
5046 | } |
5047 | ||
5048 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
5049 | ||
5050 | static ssize_t show_statistics(struct device *d, | |
5051 | struct device_attribute *attr, char *buf) | |
5052 | { | |
c79dd5b5 | 5053 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 5054 | u32 size = sizeof(struct iwl4965_notif_statistics); |
b481de9c ZY |
5055 | u32 len = 0, ofs = 0; |
5056 | u8 *data = (u8 *) & priv->statistics; | |
5057 | int rc = 0; | |
5058 | ||
fee1247a | 5059 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
5060 | return -EAGAIN; |
5061 | ||
5062 | mutex_lock(&priv->mutex); | |
49ea8596 | 5063 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
5064 | mutex_unlock(&priv->mutex); |
5065 | ||
5066 | if (rc) { | |
5067 | len = sprintf(buf, | |
5068 | "Error sending statistics request: 0x%08X\n", rc); | |
5069 | return len; | |
5070 | } | |
5071 | ||
5072 | while (size && (PAGE_SIZE - len)) { | |
5073 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
5074 | PAGE_SIZE - len, 1); | |
5075 | len = strlen(buf); | |
5076 | if (PAGE_SIZE - len) | |
5077 | buf[len++] = '\n'; | |
5078 | ||
5079 | ofs += 16; | |
5080 | size -= min(size, 16U); | |
5081 | } | |
5082 | ||
5083 | return len; | |
5084 | } | |
5085 | ||
5086 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
5087 | ||
b481de9c ZY |
5088 | static ssize_t show_status(struct device *d, |
5089 | struct device_attribute *attr, char *buf) | |
5090 | { | |
c79dd5b5 | 5091 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
fee1247a | 5092 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
5093 | return -EAGAIN; |
5094 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
5095 | } | |
5096 | ||
5097 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
5098 | ||
b481de9c ZY |
5099 | /***************************************************************************** |
5100 | * | |
5101 | * driver setup and teardown | |
5102 | * | |
5103 | *****************************************************************************/ | |
5104 | ||
c79dd5b5 | 5105 | static void iwl4965_setup_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
5106 | { |
5107 | priv->workqueue = create_workqueue(DRV_NAME); | |
5108 | ||
5109 | init_waitqueue_head(&priv->wait_command_queue); | |
5110 | ||
bb8c093b CH |
5111 | INIT_WORK(&priv->up, iwl4965_bg_up); |
5112 | INIT_WORK(&priv->restart, iwl4965_bg_restart); | |
5113 | INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish); | |
5114 | INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed); | |
5115 | INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan); | |
5116 | INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan); | |
5117 | INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill); | |
5118 | INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update); | |
4419e39b | 5119 | INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor); |
bb8c093b | 5120 | INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate); |
4a4a9e81 TW |
5121 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); |
5122 | INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); | |
bb8c093b CH |
5123 | INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check); |
5124 | ||
5125 | iwl4965_hw_setup_deferred_work(priv); | |
b481de9c ZY |
5126 | |
5127 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 5128 | iwl4965_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
5129 | } |
5130 | ||
c79dd5b5 | 5131 | static void iwl4965_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 5132 | { |
bb8c093b | 5133 | iwl4965_hw_cancel_deferred_work(priv); |
b481de9c | 5134 | |
3ae6a054 | 5135 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
5136 | cancel_delayed_work(&priv->scan_check); |
5137 | cancel_delayed_work(&priv->alive_start); | |
5138 | cancel_delayed_work(&priv->post_associate); | |
5139 | cancel_work_sync(&priv->beacon_update); | |
5140 | } | |
5141 | ||
bb8c093b | 5142 | static struct attribute *iwl4965_sysfs_entries[] = { |
b481de9c | 5143 | &dev_attr_channels.attr, |
b481de9c ZY |
5144 | &dev_attr_flags.attr, |
5145 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 5146 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
5147 | &dev_attr_measurement.attr, |
5148 | #endif | |
5149 | &dev_attr_power_level.attr, | |
5150 | &dev_attr_retry_rate.attr, | |
b481de9c ZY |
5151 | &dev_attr_rs_window.attr, |
5152 | &dev_attr_statistics.attr, | |
5153 | &dev_attr_status.attr, | |
5154 | &dev_attr_temperature.attr, | |
b481de9c | 5155 | &dev_attr_tx_power.attr, |
8cf769c6 EK |
5156 | #ifdef CONFIG_IWLWIFI_DEBUG |
5157 | &dev_attr_debug_level.attr, | |
5158 | #endif | |
bc6f59bc | 5159 | &dev_attr_version.attr, |
b481de9c ZY |
5160 | |
5161 | NULL | |
5162 | }; | |
5163 | ||
bb8c093b | 5164 | static struct attribute_group iwl4965_attribute_group = { |
b481de9c | 5165 | .name = NULL, /* put in device directory */ |
bb8c093b | 5166 | .attrs = iwl4965_sysfs_entries, |
b481de9c ZY |
5167 | }; |
5168 | ||
bb8c093b CH |
5169 | static struct ieee80211_ops iwl4965_hw_ops = { |
5170 | .tx = iwl4965_mac_tx, | |
5171 | .start = iwl4965_mac_start, | |
5172 | .stop = iwl4965_mac_stop, | |
5173 | .add_interface = iwl4965_mac_add_interface, | |
5174 | .remove_interface = iwl4965_mac_remove_interface, | |
5175 | .config = iwl4965_mac_config, | |
5176 | .config_interface = iwl4965_mac_config_interface, | |
5177 | .configure_filter = iwl4965_configure_filter, | |
5178 | .set_key = iwl4965_mac_set_key, | |
ab885f8c | 5179 | .update_tkip_key = iwl4965_mac_update_tkip_key, |
bb8c093b CH |
5180 | .get_stats = iwl4965_mac_get_stats, |
5181 | .get_tx_stats = iwl4965_mac_get_tx_stats, | |
5182 | .conf_tx = iwl4965_mac_conf_tx, | |
5183 | .get_tsf = iwl4965_mac_get_tsf, | |
5184 | .reset_tsf = iwl4965_mac_reset_tsf, | |
5185 | .beacon_update = iwl4965_mac_beacon_update, | |
471b3efd | 5186 | .bss_info_changed = iwl4965_bss_info_changed, |
c8b0e6e1 | 5187 | #ifdef CONFIG_IWL4965_HT |
9ab46173 | 5188 | .ampdu_action = iwl4965_mac_ampdu_action, |
c8b0e6e1 | 5189 | #endif /* CONFIG_IWL4965_HT */ |
bb8c093b | 5190 | .hw_scan = iwl4965_mac_hw_scan |
b481de9c ZY |
5191 | }; |
5192 | ||
bb8c093b | 5193 | static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
5194 | { |
5195 | int err = 0; | |
c79dd5b5 | 5196 | struct iwl_priv *priv; |
b481de9c | 5197 | struct ieee80211_hw *hw; |
82b9a121 | 5198 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
0359facc | 5199 | unsigned long flags; |
5a66926a | 5200 | DECLARE_MAC_BUF(mac); |
b481de9c | 5201 | |
316c30d9 AK |
5202 | /************************ |
5203 | * 1. Allocating HW data | |
5204 | ************************/ | |
5205 | ||
6440adb5 CB |
5206 | /* Disabling hardware scan means that mac80211 will perform scans |
5207 | * "the hard way", rather than using device's scan. */ | |
1ea87396 | 5208 | if (cfg->mod_params->disable_hw_scan) { |
bf403db8 EK |
5209 | if (cfg->mod_params->debug & IWL_DL_INFO) |
5210 | dev_printk(KERN_DEBUG, &(pdev->dev), | |
5211 | "Disabling hw_scan\n"); | |
bb8c093b | 5212 | iwl4965_hw_ops.hw_scan = NULL; |
b481de9c ZY |
5213 | } |
5214 | ||
1d0a082d AK |
5215 | hw = iwl_alloc_all(cfg, &iwl4965_hw_ops); |
5216 | if (!hw) { | |
b481de9c ZY |
5217 | err = -ENOMEM; |
5218 | goto out; | |
5219 | } | |
1d0a082d AK |
5220 | priv = hw->priv; |
5221 | /* At this point both hw and priv are allocated. */ | |
5222 | ||
b481de9c ZY |
5223 | SET_IEEE80211_DEV(hw, &pdev->dev); |
5224 | ||
5225 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); | |
82b9a121 | 5226 | priv->cfg = cfg; |
b481de9c | 5227 | priv->pci_dev = pdev; |
316c30d9 | 5228 | |
0a6857e7 | 5229 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 5230 | priv->debug_level = priv->cfg->mod_params->debug; |
b481de9c ZY |
5231 | atomic_set(&priv->restrict_refcnt, 0); |
5232 | #endif | |
b481de9c | 5233 | |
316c30d9 AK |
5234 | /************************** |
5235 | * 2. Initializing PCI bus | |
5236 | **************************/ | |
5237 | if (pci_enable_device(pdev)) { | |
5238 | err = -ENODEV; | |
5239 | goto out_ieee80211_free_hw; | |
5240 | } | |
5241 | ||
5242 | pci_set_master(pdev); | |
5243 | ||
cc2a8ea8 | 5244 | err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
316c30d9 | 5245 | if (!err) |
cc2a8ea8 RR |
5246 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
5247 | if (err) { | |
5248 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
5249 | if (!err) | |
5250 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
5251 | /* both attempts failed: */ | |
316c30d9 | 5252 | if (err) { |
cc2a8ea8 RR |
5253 | printk(KERN_WARNING "%s: No suitable DMA available.\n", |
5254 | DRV_NAME); | |
316c30d9 | 5255 | goto out_pci_disable_device; |
cc2a8ea8 | 5256 | } |
316c30d9 AK |
5257 | } |
5258 | ||
5259 | err = pci_request_regions(pdev, DRV_NAME); | |
5260 | if (err) | |
5261 | goto out_pci_disable_device; | |
5262 | ||
5263 | pci_set_drvdata(pdev, priv); | |
5264 | ||
5265 | /* We disable the RETRY_TIMEOUT register (0x41) to keep | |
5266 | * PCI Tx retries from interfering with C3 CPU state */ | |
5267 | pci_write_config_byte(pdev, 0x41, 0x00); | |
5268 | ||
5269 | /*********************** | |
5270 | * 3. Read REV register | |
5271 | ***********************/ | |
5272 | priv->hw_base = pci_iomap(pdev, 0, 0); | |
5273 | if (!priv->hw_base) { | |
5274 | err = -ENODEV; | |
5275 | goto out_pci_release_regions; | |
5276 | } | |
5277 | ||
5278 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
5279 | (unsigned long long) pci_resource_len(pdev, 0)); | |
5280 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
5281 | ||
b661c819 | 5282 | iwl_hw_detect(priv); |
316c30d9 | 5283 | printk(KERN_INFO DRV_NAME |
b661c819 TW |
5284 | ": Detected Intel Wireless WiFi Link %s REV=0x%X\n", |
5285 | priv->cfg->name, priv->hw_rev); | |
316c30d9 | 5286 | |
91238714 TW |
5287 | /* amp init */ |
5288 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
316c30d9 | 5289 | if (err < 0) { |
91238714 | 5290 | IWL_DEBUG_INFO("Failed to init APMG\n"); |
316c30d9 AK |
5291 | goto out_iounmap; |
5292 | } | |
91238714 TW |
5293 | /***************** |
5294 | * 4. Read EEPROM | |
5295 | *****************/ | |
316c30d9 AK |
5296 | /* Read the EEPROM */ |
5297 | err = iwl_eeprom_init(priv); | |
5298 | if (err) { | |
5299 | IWL_ERROR("Unable to init EEPROM\n"); | |
5300 | goto out_iounmap; | |
5301 | } | |
8614f360 TW |
5302 | err = iwl_eeprom_check_version(priv); |
5303 | if (err) | |
5304 | goto out_iounmap; | |
5305 | ||
02883017 | 5306 | /* extract MAC Address */ |
316c30d9 AK |
5307 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
5308 | IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr)); | |
5309 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
5310 | ||
5311 | /************************ | |
5312 | * 5. Setup HW constants | |
5313 | ************************/ | |
5314 | /* Device-specific setup */ | |
5425e490 TW |
5315 | if (priv->cfg->ops->lib->set_hw_params(priv)) { |
5316 | IWL_ERROR("failed to set hw parameters\n"); | |
073d3f5f | 5317 | goto out_free_eeprom; |
316c30d9 AK |
5318 | } |
5319 | ||
5320 | /******************* | |
6ba87956 | 5321 | * 6. Setup priv |
316c30d9 | 5322 | *******************/ |
b481de9c | 5323 | |
6ba87956 | 5324 | err = iwl_init_drv(priv); |
bf85ea4f | 5325 | if (err) |
399f4900 | 5326 | goto out_free_eeprom; |
bf85ea4f | 5327 | /* At this point both hw and priv are initialized. */ |
316c30d9 AK |
5328 | |
5329 | /********************************** | |
5330 | * 7. Initialize module parameters | |
5331 | **********************************/ | |
5332 | ||
5333 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
1ea87396 | 5334 | if (priv->cfg->mod_params->disable) { |
316c30d9 AK |
5335 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
5336 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
5337 | } | |
5338 | ||
316c30d9 AK |
5339 | /******************** |
5340 | * 8. Setup services | |
5341 | ********************/ | |
0359facc | 5342 | spin_lock_irqsave(&priv->lock, flags); |
316c30d9 | 5343 | iwl4965_disable_interrupts(priv); |
0359facc | 5344 | spin_unlock_irqrestore(&priv->lock, flags); |
316c30d9 AK |
5345 | |
5346 | err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
5347 | if (err) { | |
5348 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
6ba87956 | 5349 | goto out_uninit_drv; |
316c30d9 AK |
5350 | } |
5351 | ||
316c30d9 AK |
5352 | |
5353 | iwl4965_setup_deferred_work(priv); | |
5354 | iwl4965_setup_rx_handlers(priv); | |
5355 | ||
5356 | /******************** | |
5357 | * 9. Conclude | |
5358 | ********************/ | |
5a66926a ZY |
5359 | pci_save_state(pdev); |
5360 | pci_disable_device(pdev); | |
b481de9c | 5361 | |
6ba87956 TW |
5362 | /********************************** |
5363 | * 10. Setup and register mac80211 | |
5364 | **********************************/ | |
5365 | ||
5366 | err = iwl_setup_mac(priv); | |
5367 | if (err) | |
5368 | goto out_remove_sysfs; | |
5369 | ||
5370 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
5371 | if (err) | |
5372 | IWL_ERROR("failed to create debugfs files\n"); | |
5373 | ||
c8381fdc MA |
5374 | /* notify iwlcore to init */ |
5375 | iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT); | |
b481de9c ZY |
5376 | return 0; |
5377 | ||
316c30d9 AK |
5378 | out_remove_sysfs: |
5379 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
6ba87956 TW |
5380 | out_uninit_drv: |
5381 | iwl_uninit_drv(priv); | |
073d3f5f TW |
5382 | out_free_eeprom: |
5383 | iwl_eeprom_free(priv); | |
b481de9c ZY |
5384 | out_iounmap: |
5385 | pci_iounmap(pdev, priv->hw_base); | |
5386 | out_pci_release_regions: | |
5387 | pci_release_regions(pdev); | |
316c30d9 | 5388 | pci_set_drvdata(pdev, NULL); |
b481de9c ZY |
5389 | out_pci_disable_device: |
5390 | pci_disable_device(pdev); | |
b481de9c ZY |
5391 | out_ieee80211_free_hw: |
5392 | ieee80211_free_hw(priv->hw); | |
5393 | out: | |
5394 | return err; | |
5395 | } | |
5396 | ||
c83dbf68 | 5397 | static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) |
b481de9c | 5398 | { |
c79dd5b5 | 5399 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c ZY |
5400 | struct list_head *p, *q; |
5401 | int i; | |
0359facc | 5402 | unsigned long flags; |
b481de9c ZY |
5403 | |
5404 | if (!priv) | |
5405 | return; | |
5406 | ||
5407 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
5408 | ||
c4f55232 RR |
5409 | if (priv->mac80211_registered) { |
5410 | ieee80211_unregister_hw(priv->hw); | |
5411 | priv->mac80211_registered = 0; | |
5412 | } | |
5413 | ||
b481de9c | 5414 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 5415 | |
bb8c093b | 5416 | iwl4965_down(priv); |
b481de9c | 5417 | |
0359facc MA |
5418 | /* make sure we flush any pending irq or |
5419 | * tasklet for the driver | |
5420 | */ | |
5421 | spin_lock_irqsave(&priv->lock, flags); | |
5422 | iwl4965_disable_interrupts(priv); | |
5423 | spin_unlock_irqrestore(&priv->lock, flags); | |
5424 | ||
5425 | iwl_synchronize_irq(priv); | |
5426 | ||
b481de9c ZY |
5427 | /* Free MAC hash list for ADHOC */ |
5428 | for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) { | |
5429 | list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { | |
5430 | list_del(p); | |
bb8c093b | 5431 | kfree(list_entry(p, struct iwl4965_ibss_seq, list)); |
b481de9c ZY |
5432 | } |
5433 | } | |
5434 | ||
c8381fdc | 5435 | iwlcore_low_level_notify(priv, IWLCORE_REMOVE_EVT); |
712b6cf5 | 5436 | iwl_dbgfs_unregister(priv); |
bb8c093b | 5437 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); |
b481de9c | 5438 | |
bb8c093b | 5439 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
5440 | |
5441 | if (priv->rxq.bd) | |
a55360e4 | 5442 | iwl_rx_queue_free(priv, &priv->rxq); |
1053d35f | 5443 | iwl_hw_txq_ctx_free(priv); |
b481de9c | 5444 | |
bf85ea4f | 5445 | iwlcore_clear_stations_table(priv); |
073d3f5f | 5446 | iwl_eeprom_free(priv); |
b481de9c | 5447 | |
b481de9c | 5448 | |
948c171c MA |
5449 | /*netif_stop_queue(dev); */ |
5450 | flush_workqueue(priv->workqueue); | |
5451 | ||
bb8c093b | 5452 | /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes |
b481de9c ZY |
5453 | * priv->workqueue... so we can't take down the workqueue |
5454 | * until now... */ | |
5455 | destroy_workqueue(priv->workqueue); | |
5456 | priv->workqueue = NULL; | |
5457 | ||
b481de9c ZY |
5458 | pci_iounmap(pdev, priv->hw_base); |
5459 | pci_release_regions(pdev); | |
5460 | pci_disable_device(pdev); | |
5461 | pci_set_drvdata(pdev, NULL); | |
5462 | ||
6ba87956 | 5463 | iwl_uninit_drv(priv); |
b481de9c ZY |
5464 | |
5465 | if (priv->ibss_beacon) | |
5466 | dev_kfree_skb(priv->ibss_beacon); | |
5467 | ||
5468 | ieee80211_free_hw(priv->hw); | |
5469 | } | |
5470 | ||
5471 | #ifdef CONFIG_PM | |
5472 | ||
bb8c093b | 5473 | static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 5474 | { |
c79dd5b5 | 5475 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 5476 | |
e655b9f0 ZY |
5477 | if (priv->is_open) { |
5478 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
5479 | iwl4965_mac_stop(priv->hw); | |
5480 | priv->is_open = 1; | |
5481 | } | |
b481de9c | 5482 | |
b481de9c ZY |
5483 | pci_set_power_state(pdev, PCI_D3hot); |
5484 | ||
b481de9c ZY |
5485 | return 0; |
5486 | } | |
5487 | ||
bb8c093b | 5488 | static int iwl4965_pci_resume(struct pci_dev *pdev) |
b481de9c | 5489 | { |
c79dd5b5 | 5490 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 5491 | |
b481de9c | 5492 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 5493 | |
e655b9f0 ZY |
5494 | if (priv->is_open) |
5495 | iwl4965_mac_start(priv->hw); | |
b481de9c | 5496 | |
e655b9f0 | 5497 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
5498 | return 0; |
5499 | } | |
5500 | ||
5501 | #endif /* CONFIG_PM */ | |
5502 | ||
5503 | /***************************************************************************** | |
5504 | * | |
5505 | * driver and module entry point | |
5506 | * | |
5507 | *****************************************************************************/ | |
5508 | ||
fed9017e RR |
5509 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
5510 | static struct pci_device_id iwl_hw_card_ids[] = { | |
5511 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
5512 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
5a6a256e TW |
5513 | #ifdef CONFIG_IWL5000 |
5514 | {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, | |
5515 | {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, | |
5516 | {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)}, | |
5517 | #endif /* CONFIG_IWL5000 */ | |
fed9017e RR |
5518 | {0} |
5519 | }; | |
5520 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); | |
5521 | ||
5522 | static struct pci_driver iwl_driver = { | |
b481de9c | 5523 | .name = DRV_NAME, |
fed9017e | 5524 | .id_table = iwl_hw_card_ids, |
bb8c093b CH |
5525 | .probe = iwl4965_pci_probe, |
5526 | .remove = __devexit_p(iwl4965_pci_remove), | |
b481de9c | 5527 | #ifdef CONFIG_PM |
bb8c093b CH |
5528 | .suspend = iwl4965_pci_suspend, |
5529 | .resume = iwl4965_pci_resume, | |
b481de9c ZY |
5530 | #endif |
5531 | }; | |
5532 | ||
bb8c093b | 5533 | static int __init iwl4965_init(void) |
b481de9c ZY |
5534 | { |
5535 | ||
5536 | int ret; | |
5537 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
5538 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
5539 | |
5540 | ret = iwl4965_rate_control_register(); | |
5541 | if (ret) { | |
5542 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
5543 | return ret; | |
5544 | } | |
5545 | ||
fed9017e | 5546 | ret = pci_register_driver(&iwl_driver); |
b481de9c ZY |
5547 | if (ret) { |
5548 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 5549 | goto error_register; |
b481de9c | 5550 | } |
b481de9c ZY |
5551 | |
5552 | return ret; | |
897e1cf2 | 5553 | |
897e1cf2 RC |
5554 | error_register: |
5555 | iwl4965_rate_control_unregister(); | |
5556 | return ret; | |
b481de9c ZY |
5557 | } |
5558 | ||
bb8c093b | 5559 | static void __exit iwl4965_exit(void) |
b481de9c | 5560 | { |
fed9017e | 5561 | pci_unregister_driver(&iwl_driver); |
897e1cf2 | 5562 | iwl4965_rate_control_unregister(); |
b481de9c ZY |
5563 | } |
5564 | ||
bb8c093b CH |
5565 | module_exit(iwl4965_exit); |
5566 | module_init(iwl4965_init); |