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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 | ||
bb8c093b | 90 | static int iwl4965_is_empty_essid(const char *essid, int essid_len) |
b481de9c ZY |
91 | { |
92 | /* Single white space is for Linksys APs */ | |
93 | if (essid_len == 1 && essid[0] == ' ') | |
94 | return 1; | |
95 | ||
96 | /* Otherwise, if the entire essid is 0, we assume it is hidden */ | |
97 | while (essid_len) { | |
98 | essid_len--; | |
99 | if (essid[essid_len] != '\0') | |
100 | return 0; | |
101 | } | |
102 | ||
103 | return 1; | |
104 | } | |
105 | ||
bb8c093b | 106 | static const char *iwl4965_escape_essid(const char *essid, u8 essid_len) |
b481de9c ZY |
107 | { |
108 | static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; | |
109 | const char *s = essid; | |
110 | char *d = escaped; | |
111 | ||
bb8c093b | 112 | if (iwl4965_is_empty_essid(essid, essid_len)) { |
b481de9c ZY |
113 | memcpy(escaped, "<hidden>", sizeof("<hidden>")); |
114 | return escaped; | |
115 | } | |
116 | ||
117 | essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); | |
118 | while (essid_len--) { | |
119 | if (*s == '\0') { | |
120 | *d++ = '\\'; | |
121 | *d++ = '0'; | |
122 | s++; | |
123 | } else | |
124 | *d++ = *s++; | |
125 | } | |
126 | *d = '\0'; | |
127 | return escaped; | |
128 | } | |
129 | ||
b481de9c | 130 | /*************** STATION TABLE MANAGEMENT **** |
9fbab516 | 131 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
132 | * the functionality provided here |
133 | */ | |
134 | ||
135 | /**************************************************************/ | |
136 | ||
b481de9c | 137 | |
b481de9c | 138 | |
deb09c43 EG |
139 | static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
140 | { | |
c1adf9fb | 141 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
deb09c43 EG |
142 | |
143 | if (hw_decrypt) | |
144 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
145 | else | |
146 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
147 | ||
148 | } | |
149 | ||
b481de9c | 150 | /** |
bb8c093b | 151 | * iwl4965_check_rxon_cmd - validate RXON structure is valid |
b481de9c ZY |
152 | * |
153 | * NOTE: This is really only useful during development and can eventually | |
154 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
155 | * making changes | |
156 | */ | |
c1adf9fb | 157 | static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon) |
b481de9c ZY |
158 | { |
159 | int error = 0; | |
160 | int counter = 1; | |
161 | ||
162 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
163 | error |= le32_to_cpu(rxon->flags & | |
164 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
165 | RXON_FLG_RADAR_DETECT_MSK)); | |
166 | if (error) | |
167 | IWL_WARNING("check 24G fields %d | %d\n", | |
168 | counter++, error); | |
169 | } else { | |
170 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
171 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
172 | if (error) | |
173 | IWL_WARNING("check 52 fields %d | %d\n", | |
174 | counter++, error); | |
175 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
176 | if (error) | |
177 | IWL_WARNING("check 52 CCK %d | %d\n", | |
178 | counter++, error); | |
179 | } | |
180 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
181 | if (error) | |
182 | IWL_WARNING("check mac addr %d | %d\n", counter++, error); | |
183 | ||
184 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
185 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
186 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
187 | if (error) | |
188 | IWL_WARNING("check basic rate %d | %d\n", counter++, error); | |
189 | ||
190 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
191 | if (error) | |
192 | IWL_WARNING("check assoc id %d | %d\n", counter++, error); | |
193 | ||
194 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
195 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
196 | if (error) | |
197 | IWL_WARNING("check CCK and short slot %d | %d\n", | |
198 | counter++, error); | |
199 | ||
200 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
201 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
202 | if (error) | |
203 | IWL_WARNING("check CCK & auto detect %d | %d\n", | |
204 | counter++, error); | |
205 | ||
206 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
207 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
208 | if (error) | |
209 | IWL_WARNING("check TGG and auto detect %d | %d\n", | |
210 | counter++, error); | |
211 | ||
212 | if (error) | |
213 | IWL_WARNING("Tuning to channel %d\n", | |
214 | le16_to_cpu(rxon->channel)); | |
215 | ||
216 | if (error) { | |
bb8c093b | 217 | IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n"); |
b481de9c ZY |
218 | return -1; |
219 | } | |
220 | return 0; | |
221 | } | |
222 | ||
223 | /** | |
9fbab516 | 224 | * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
01ebd063 | 225 | * @priv: staging_rxon is compared to active_rxon |
b481de9c | 226 | * |
9fbab516 BC |
227 | * If the RXON structure is changing enough to require a new tune, |
228 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
229 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
b481de9c | 230 | */ |
c79dd5b5 | 231 | static int iwl4965_full_rxon_required(struct iwl_priv *priv) |
b481de9c ZY |
232 | { |
233 | ||
234 | /* These items are only settable from the full RXON command */ | |
235 | if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) || | |
236 | compare_ether_addr(priv->staging_rxon.bssid_addr, | |
237 | priv->active_rxon.bssid_addr) || | |
238 | compare_ether_addr(priv->staging_rxon.node_addr, | |
239 | priv->active_rxon.node_addr) || | |
240 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
241 | priv->active_rxon.wlap_bssid_addr) || | |
242 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
243 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
244 | (priv->staging_rxon.air_propagation != | |
245 | priv->active_rxon.air_propagation) || | |
246 | (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != | |
247 | priv->active_rxon.ofdm_ht_single_stream_basic_rates) || | |
248 | (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != | |
249 | priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || | |
250 | (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) || | |
251 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) | |
252 | return 1; | |
253 | ||
254 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
255 | * be updated with the RXON_ASSOC command -- however only some | |
256 | * flag transitions are allowed using RXON_ASSOC */ | |
257 | ||
258 | /* Check if we are not switching bands */ | |
259 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
260 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
261 | return 1; | |
262 | ||
263 | /* Check if we are switching association toggle */ | |
264 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
265 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
266 | return 1; | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
b481de9c | 271 | /** |
bb8c093b | 272 | * iwl4965_commit_rxon - commit staging_rxon to hardware |
b481de9c | 273 | * |
01ebd063 | 274 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
275 | * the active_rxon structure is updated with the new data. This |
276 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
277 | * a HW tune is required based on the RXON structure changes. | |
278 | */ | |
c79dd5b5 | 279 | static int iwl4965_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
280 | { |
281 | /* cast away the const for active_rxon in this function */ | |
c1adf9fb | 282 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
0795af57 | 283 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
284 | int rc = 0; |
285 | ||
fee1247a | 286 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
287 | return -1; |
288 | ||
289 | /* always get timestamp with Rx frame */ | |
290 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
291 | ||
bb8c093b | 292 | rc = iwl4965_check_rxon_cmd(&priv->staging_rxon); |
b481de9c ZY |
293 | if (rc) { |
294 | IWL_ERROR("Invalid RXON configuration. Not committing.\n"); | |
295 | return -EINVAL; | |
296 | } | |
297 | ||
298 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 299 | * iwl4965_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 300 | * and other flags for the current radio configuration. */ |
bb8c093b | 301 | if (!iwl4965_full_rxon_required(priv)) { |
7e8c519e | 302 | rc = iwl_send_rxon_assoc(priv); |
b481de9c ZY |
303 | if (rc) { |
304 | IWL_ERROR("Error setting RXON_ASSOC " | |
305 | "configuration (%d).\n", rc); | |
306 | return rc; | |
307 | } | |
308 | ||
309 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | /* station table will be cleared */ | |
315 | priv->assoc_station_added = 0; | |
316 | ||
b481de9c ZY |
317 | /* If we are currently associated and the new config requires |
318 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
319 | * we must clear the associated from the active configuration | |
320 | * before we apply the new config */ | |
3109ece1 | 321 | if (iwl_is_associated(priv) && |
b481de9c ZY |
322 | (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) { |
323 | IWL_DEBUG_INFO("Toggling associated bit on current RXON\n"); | |
324 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
325 | ||
857485c0 | 326 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 327 | sizeof(struct iwl_rxon_cmd), |
b481de9c ZY |
328 | &priv->active_rxon); |
329 | ||
330 | /* If the mask clearing failed then we set | |
331 | * active_rxon back to what it was previously */ | |
332 | if (rc) { | |
333 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
334 | IWL_ERROR("Error clearing ASSOC_MSK on current " | |
335 | "configuration (%d).\n", rc); | |
336 | return rc; | |
337 | } | |
b481de9c ZY |
338 | } |
339 | ||
340 | IWL_DEBUG_INFO("Sending RXON\n" | |
341 | "* with%s RXON_FILTER_ASSOC_MSK\n" | |
342 | "* channel = %d\n" | |
0795af57 | 343 | "* bssid = %s\n", |
b481de9c ZY |
344 | ((priv->staging_rxon.filter_flags & |
345 | RXON_FILTER_ASSOC_MSK) ? "" : "out"), | |
346 | le16_to_cpu(priv->staging_rxon.channel), | |
0795af57 | 347 | print_mac(mac, priv->staging_rxon.bssid_addr)); |
b481de9c | 348 | |
099b40b7 | 349 | iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
b481de9c | 350 | /* Apply the new configuration */ |
857485c0 | 351 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 352 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
b481de9c ZY |
353 | if (rc) { |
354 | IWL_ERROR("Error setting new configuration (%d).\n", rc); | |
355 | return rc; | |
356 | } | |
357 | ||
7a999bf0 | 358 | iwl_remove_station(priv, iwl_bcast_addr, 0); |
bf85ea4f | 359 | iwlcore_clear_stations_table(priv); |
556f8db7 | 360 | |
b481de9c ZY |
361 | if (!priv->error_recovering) |
362 | priv->start_calib = 0; | |
363 | ||
f0832f13 | 364 | iwl_init_sensitivity(priv); |
b481de9c ZY |
365 | |
366 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
367 | ||
368 | /* If we issue a new RXON command which required a tune then we must | |
369 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
bb8c093b | 370 | rc = iwl4965_hw_reg_send_txpower(priv); |
b481de9c ZY |
371 | if (rc) { |
372 | IWL_ERROR("Error setting Tx power (%d).\n", rc); | |
373 | return rc; | |
374 | } | |
375 | ||
376 | /* Add the broadcast address so we can send broadcast frames */ | |
4f40e4d9 | 377 | if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == |
b481de9c ZY |
378 | IWL_INVALID_STATION) { |
379 | IWL_ERROR("Error adding BROADCAST address for transmit.\n"); | |
380 | return -EIO; | |
381 | } | |
382 | ||
383 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
384 | * add the IWL_AP_ID to the station rate table */ | |
3109ece1 | 385 | if (iwl_is_associated(priv) && |
b481de9c | 386 | (priv->iw_mode == IEEE80211_IF_TYPE_STA)) { |
4f40e4d9 | 387 | if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1) |
b481de9c ZY |
388 | == IWL_INVALID_STATION) { |
389 | IWL_ERROR("Error adding AP address for transmit.\n"); | |
390 | return -EIO; | |
391 | } | |
392 | priv->assoc_station_added = 1; | |
6974e363 EG |
393 | if (priv->default_wep_key && |
394 | iwl_send_static_wepkey_cmd(priv, 0)) | |
395 | IWL_ERROR("Could not send WEP static key.\n"); | |
b481de9c ZY |
396 | } |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
5da4b55f MA |
401 | void iwl4965_update_chain_flags(struct iwl_priv *priv) |
402 | { | |
403 | ||
c7de35cd | 404 | iwl_set_rxon_chain(priv); |
5da4b55f MA |
405 | iwl4965_commit_rxon(priv); |
406 | } | |
407 | ||
c79dd5b5 | 408 | static int iwl4965_send_bt_config(struct iwl_priv *priv) |
b481de9c | 409 | { |
bb8c093b | 410 | struct iwl4965_bt_cmd bt_cmd = { |
b481de9c ZY |
411 | .flags = 3, |
412 | .lead_time = 0xAA, | |
413 | .max_kill = 1, | |
414 | .kill_ack_mask = 0, | |
415 | .kill_cts_mask = 0, | |
416 | }; | |
417 | ||
857485c0 | 418 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
bb8c093b | 419 | sizeof(struct iwl4965_bt_cmd), &bt_cmd); |
b481de9c ZY |
420 | } |
421 | ||
c79dd5b5 | 422 | static int iwl4965_send_scan_abort(struct iwl_priv *priv) |
b481de9c | 423 | { |
db11d634 TW |
424 | int ret = 0; |
425 | struct iwl_rx_packet *res; | |
857485c0 | 426 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
427 | .id = REPLY_SCAN_ABORT_CMD, |
428 | .meta.flags = CMD_WANT_SKB, | |
429 | }; | |
430 | ||
431 | /* If there isn't a scan actively going on in the hardware | |
432 | * then we are in between scan bands and not actually | |
433 | * actively scanning, so don't send the abort command */ | |
434 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
435 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
436 | return 0; | |
437 | } | |
438 | ||
db11d634 TW |
439 | ret = iwl_send_cmd_sync(priv, &cmd); |
440 | if (ret) { | |
b481de9c | 441 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); |
db11d634 | 442 | return ret; |
b481de9c ZY |
443 | } |
444 | ||
db11d634 | 445 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
446 | if (res->u.status != CAN_ABORT_STATUS) { |
447 | /* The scan abort will return 1 for success or | |
448 | * 2 for "failure". A failure condition can be | |
449 | * due to simply not being in an active scan which | |
450 | * can occur if we send the scan abort before we | |
451 | * the microcode has notified us that a scan is | |
452 | * completed. */ | |
453 | IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); | |
454 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
455 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
456 | } | |
457 | ||
458 | dev_kfree_skb_any(cmd.meta.u.skb); | |
459 | ||
db11d634 | 460 | return ret; |
b481de9c ZY |
461 | } |
462 | ||
b481de9c ZY |
463 | /* |
464 | * CARD_STATE_CMD | |
465 | * | |
9fbab516 | 466 | * Use: Sets the device's internal card state to enable, disable, or halt |
b481de9c ZY |
467 | * |
468 | * When in the 'enable' state the card operates as normal. | |
469 | * When in the 'disable' state, the card enters into a low power mode. | |
470 | * When in the 'halt' state, the card is shut down and must be fully | |
471 | * restarted to come back on. | |
472 | */ | |
c79dd5b5 | 473 | static int iwl4965_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) |
b481de9c | 474 | { |
857485c0 | 475 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
476 | .id = REPLY_CARD_STATE_CMD, |
477 | .len = sizeof(u32), | |
478 | .data = &flags, | |
479 | .meta.flags = meta_flag, | |
480 | }; | |
481 | ||
857485c0 | 482 | return iwl_send_cmd(priv, &cmd); |
b481de9c ZY |
483 | } |
484 | ||
fcab423d | 485 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
486 | { |
487 | struct list_head *element; | |
488 | ||
489 | IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n", | |
490 | priv->frames_count); | |
491 | ||
492 | while (!list_empty(&priv->free_frames)) { | |
493 | element = priv->free_frames.next; | |
494 | list_del(element); | |
fcab423d | 495 | kfree(list_entry(element, struct iwl_frame, list)); |
b481de9c ZY |
496 | priv->frames_count--; |
497 | } | |
498 | ||
499 | if (priv->frames_count) { | |
500 | IWL_WARNING("%d frames still in use. Did we lose one?\n", | |
501 | priv->frames_count); | |
502 | priv->frames_count = 0; | |
503 | } | |
504 | } | |
505 | ||
fcab423d | 506 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
b481de9c | 507 | { |
fcab423d | 508 | struct iwl_frame *frame; |
b481de9c ZY |
509 | struct list_head *element; |
510 | if (list_empty(&priv->free_frames)) { | |
511 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
512 | if (!frame) { | |
513 | IWL_ERROR("Could not allocate frame!\n"); | |
514 | return NULL; | |
515 | } | |
516 | ||
517 | priv->frames_count++; | |
518 | return frame; | |
519 | } | |
520 | ||
521 | element = priv->free_frames.next; | |
522 | list_del(element); | |
fcab423d | 523 | return list_entry(element, struct iwl_frame, list); |
b481de9c ZY |
524 | } |
525 | ||
fcab423d | 526 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
b481de9c ZY |
527 | { |
528 | memset(frame, 0, sizeof(*frame)); | |
529 | list_add(&frame->list, &priv->free_frames); | |
530 | } | |
531 | ||
c79dd5b5 | 532 | unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv, |
b481de9c ZY |
533 | struct ieee80211_hdr *hdr, |
534 | const u8 *dest, int left) | |
535 | { | |
536 | ||
3109ece1 | 537 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
b481de9c ZY |
538 | ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) && |
539 | (priv->iw_mode != IEEE80211_IF_TYPE_AP))) | |
540 | return 0; | |
541 | ||
542 | if (priv->ibss_beacon->len > left) | |
543 | return 0; | |
544 | ||
545 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
546 | ||
547 | return priv->ibss_beacon->len; | |
548 | } | |
549 | ||
39e88504 | 550 | static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv) |
b481de9c | 551 | { |
39e88504 GC |
552 | int i; |
553 | int rate_mask; | |
554 | ||
555 | /* Set rate mask*/ | |
556 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
557 | rate_mask = priv->active_rate_basic & 0xF; | |
558 | else | |
559 | rate_mask = priv->active_rate_basic & 0xFF0; | |
b481de9c | 560 | |
39e88504 | 561 | /* Find lowest valid rate */ |
b481de9c | 562 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; |
1826dcc0 | 563 | i = iwl_rates[i].next_ieee) { |
b481de9c | 564 | if (rate_mask & (1 << i)) |
1826dcc0 | 565 | return iwl_rates[i].plcp; |
b481de9c ZY |
566 | } |
567 | ||
39e88504 GC |
568 | /* No valid rate was found. Assign the lowest one */ |
569 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
570 | return IWL_RATE_1M_PLCP; | |
571 | else | |
572 | return IWL_RATE_6M_PLCP; | |
b481de9c ZY |
573 | } |
574 | ||
c79dd5b5 | 575 | static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 576 | { |
fcab423d | 577 | struct iwl_frame *frame; |
b481de9c ZY |
578 | unsigned int frame_size; |
579 | int rc; | |
580 | u8 rate; | |
581 | ||
fcab423d | 582 | frame = iwl_get_free_frame(priv); |
b481de9c ZY |
583 | |
584 | if (!frame) { | |
585 | IWL_ERROR("Could not obtain free frame buffer for beacon " | |
586 | "command.\n"); | |
587 | return -ENOMEM; | |
588 | } | |
589 | ||
39e88504 | 590 | rate = iwl4965_rate_get_lowest_plcp(priv); |
b481de9c | 591 | |
bb8c093b | 592 | frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 593 | |
857485c0 | 594 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
595 | &frame->u.cmd[0]); |
596 | ||
fcab423d | 597 | iwl_free_frame(priv, frame); |
b481de9c ZY |
598 | |
599 | return rc; | |
600 | } | |
601 | ||
b481de9c ZY |
602 | /****************************************************************************** |
603 | * | |
604 | * Misc. internal state and helper functions | |
605 | * | |
606 | ******************************************************************************/ | |
b481de9c | 607 | |
b481de9c | 608 | /** |
bb8c093b | 609 | * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field |
b481de9c ZY |
610 | * |
611 | * return : set the bit for each supported rate insert in ie | |
612 | */ | |
bb8c093b | 613 | static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate, |
c7c46676 | 614 | u16 basic_rate, int *left) |
b481de9c ZY |
615 | { |
616 | u16 ret_rates = 0, bit; | |
617 | int i; | |
c7c46676 TW |
618 | u8 *cnt = ie; |
619 | u8 *rates = ie + 1; | |
b481de9c ZY |
620 | |
621 | for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { | |
622 | if (bit & supported_rate) { | |
623 | ret_rates |= bit; | |
1826dcc0 | 624 | rates[*cnt] = iwl_rates[i].ieee | |
c7c46676 TW |
625 | ((bit & basic_rate) ? 0x80 : 0x00); |
626 | (*cnt)++; | |
627 | (*left)--; | |
628 | if ((*left <= 0) || | |
629 | (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) | |
b481de9c ZY |
630 | break; |
631 | } | |
632 | } | |
633 | ||
634 | return ret_rates; | |
635 | } | |
636 | ||
d1141dfb EG |
637 | #ifdef CONFIG_IWL4965_HT |
638 | static void iwl4965_ht_conf(struct iwl_priv *priv, | |
639 | struct ieee80211_bss_conf *bss_conf) | |
640 | { | |
641 | struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf; | |
642 | struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf; | |
643 | struct iwl_ht_info *iwl_conf = &priv->current_ht_config; | |
644 | ||
645 | IWL_DEBUG_MAC80211("enter: \n"); | |
646 | ||
647 | iwl_conf->is_ht = bss_conf->assoc_ht; | |
648 | ||
649 | if (!iwl_conf->is_ht) | |
650 | return; | |
651 | ||
652 | priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
653 | ||
654 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) | |
a9841013 | 655 | iwl_conf->sgf |= HT_SHORT_GI_20MHZ; |
d1141dfb | 656 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) |
a9841013 | 657 | iwl_conf->sgf |= HT_SHORT_GI_40MHZ; |
d1141dfb EG |
658 | |
659 | iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); | |
660 | iwl_conf->max_amsdu_size = | |
661 | !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); | |
662 | ||
663 | iwl_conf->supported_chan_width = | |
664 | !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH); | |
665 | iwl_conf->extension_chan_offset = | |
666 | ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET; | |
667 | /* If no above or below channel supplied disable FAT channel */ | |
668 | if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE && | |
669 | iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW) | |
670 | iwl_conf->supported_chan_width = 0; | |
671 | ||
672 | iwl_conf->tx_mimo_ps_mode = | |
673 | (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); | |
674 | memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16); | |
675 | ||
676 | iwl_conf->control_channel = ht_bss_conf->primary_channel; | |
677 | iwl_conf->tx_chan_width = | |
678 | !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH); | |
679 | iwl_conf->ht_protection = | |
680 | ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION; | |
681 | iwl_conf->non_GF_STA_present = | |
682 | !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT); | |
683 | ||
684 | IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel); | |
685 | IWL_DEBUG_MAC80211("leave\n"); | |
686 | } | |
687 | ||
688 | static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, | |
689 | u8 *pos, int *left) | |
690 | { | |
691 | struct ieee80211_ht_cap *ht_cap; | |
692 | ||
693 | if (!sband || !sband->ht_info.ht_supported) | |
694 | return; | |
695 | ||
696 | if (*left < sizeof(struct ieee80211_ht_cap)) | |
697 | return; | |
698 | ||
699 | *pos++ = sizeof(struct ieee80211_ht_cap); | |
700 | ht_cap = (struct ieee80211_ht_cap *) pos; | |
701 | ||
702 | ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap); | |
703 | memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16); | |
704 | ht_cap->ampdu_params_info = | |
705 | (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) | | |
706 | ((sband->ht_info.ampdu_density << 2) & | |
707 | IEEE80211_HT_CAP_AMPDU_DENSITY); | |
708 | *left -= sizeof(struct ieee80211_ht_cap); | |
709 | } | |
710 | #else | |
711 | static inline void iwl4965_ht_conf(struct iwl_priv *priv, | |
712 | struct ieee80211_bss_conf *bss_conf) | |
713 | { | |
714 | } | |
715 | static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, | |
716 | u8 *pos, int *left) | |
717 | { | |
718 | } | |
719 | #endif | |
720 | ||
721 | ||
b481de9c | 722 | /** |
bb8c093b | 723 | * iwl4965_fill_probe_req - fill in all required fields and IE for probe request |
b481de9c | 724 | */ |
c79dd5b5 | 725 | static u16 iwl4965_fill_probe_req(struct iwl_priv *priv, |
78330fdd TW |
726 | enum ieee80211_band band, |
727 | struct ieee80211_mgmt *frame, | |
728 | int left, int is_direct) | |
b481de9c ZY |
729 | { |
730 | int len = 0; | |
731 | u8 *pos = NULL; | |
bee488db | 732 | u16 active_rates, ret_rates, cck_rates, active_rate_basic; |
78330fdd | 733 | const struct ieee80211_supported_band *sband = |
d1141dfb | 734 | iwl_get_hw_mode(priv, band); |
b481de9c ZY |
735 | |
736 | /* Make sure there is enough space for the probe request, | |
737 | * two mandatory IEs and the data */ | |
738 | left -= 24; | |
739 | if (left < 0) | |
740 | return 0; | |
741 | len += 24; | |
742 | ||
743 | frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
57bd1bea | 744 | memcpy(frame->da, iwl_bcast_addr, ETH_ALEN); |
b481de9c | 745 | memcpy(frame->sa, priv->mac_addr, ETH_ALEN); |
57bd1bea | 746 | memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN); |
b481de9c ZY |
747 | frame->seq_ctrl = 0; |
748 | ||
749 | /* fill in our indirect SSID IE */ | |
750 | /* ...next IE... */ | |
751 | ||
752 | left -= 2; | |
753 | if (left < 0) | |
754 | return 0; | |
755 | len += 2; | |
756 | pos = &(frame->u.probe_req.variable[0]); | |
757 | *pos++ = WLAN_EID_SSID; | |
758 | *pos++ = 0; | |
759 | ||
760 | /* fill in our direct SSID IE... */ | |
761 | if (is_direct) { | |
762 | /* ...next IE... */ | |
763 | left -= 2 + priv->essid_len; | |
764 | if (left < 0) | |
765 | return 0; | |
766 | /* ... fill it in... */ | |
767 | *pos++ = WLAN_EID_SSID; | |
768 | *pos++ = priv->essid_len; | |
769 | memcpy(pos, priv->essid, priv->essid_len); | |
770 | pos += priv->essid_len; | |
771 | len += 2 + priv->essid_len; | |
772 | } | |
773 | ||
774 | /* fill in supported rate */ | |
775 | /* ...next IE... */ | |
776 | left -= 2; | |
777 | if (left < 0) | |
778 | return 0; | |
c7c46676 | 779 | |
b481de9c ZY |
780 | /* ... fill it in... */ |
781 | *pos++ = WLAN_EID_SUPP_RATES; | |
782 | *pos = 0; | |
c7c46676 | 783 | |
bee488db | 784 | /* exclude 60M rate */ |
785 | active_rates = priv->rates_mask; | |
786 | active_rates &= ~IWL_RATE_60M_MASK; | |
787 | ||
788 | active_rate_basic = active_rates & IWL_BASIC_RATES_MASK; | |
b481de9c | 789 | |
c7c46676 | 790 | cck_rates = IWL_CCK_RATES_MASK & active_rates; |
bb8c093b | 791 | ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates, |
bee488db | 792 | active_rate_basic, &left); |
c7c46676 TW |
793 | active_rates &= ~ret_rates; |
794 | ||
bb8c093b | 795 | ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates, |
bee488db | 796 | active_rate_basic, &left); |
c7c46676 TW |
797 | active_rates &= ~ret_rates; |
798 | ||
b481de9c ZY |
799 | len += 2 + *pos; |
800 | pos += (*pos) + 1; | |
c7c46676 | 801 | if (active_rates == 0) |
b481de9c ZY |
802 | goto fill_end; |
803 | ||
804 | /* fill in supported extended rate */ | |
805 | /* ...next IE... */ | |
806 | left -= 2; | |
807 | if (left < 0) | |
808 | return 0; | |
809 | /* ... fill it in... */ | |
810 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
811 | *pos = 0; | |
bb8c093b | 812 | iwl4965_supported_rate_to_ie(pos, active_rates, |
bee488db | 813 | active_rate_basic, &left); |
b481de9c ZY |
814 | if (*pos > 0) |
815 | len += 2 + *pos; | |
816 | ||
b481de9c | 817 | fill_end: |
d1141dfb EG |
818 | /* fill in HT IE */ |
819 | left -= 2; | |
820 | if (left < 0) | |
821 | return 0; | |
822 | ||
823 | *pos++ = WLAN_EID_HT_CAPABILITY; | |
824 | *pos = 0; | |
825 | ||
826 | iwl_ht_cap_to_ie(sband, pos, &left); | |
827 | ||
828 | if (*pos > 0) | |
829 | len += 2 + *pos; | |
b481de9c ZY |
830 | return (u16)len; |
831 | } | |
832 | ||
833 | /* | |
834 | * QoS support | |
835 | */ | |
c79dd5b5 | 836 | static int iwl4965_send_qos_params_command(struct iwl_priv *priv, |
bb8c093b | 837 | struct iwl4965_qosparam_cmd *qos) |
b481de9c ZY |
838 | { |
839 | ||
857485c0 | 840 | return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM, |
bb8c093b | 841 | sizeof(struct iwl4965_qosparam_cmd), qos); |
b481de9c ZY |
842 | } |
843 | ||
c79dd5b5 | 844 | static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force) |
b481de9c ZY |
845 | { |
846 | unsigned long flags; | |
847 | ||
b481de9c ZY |
848 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
849 | return; | |
850 | ||
851 | if (!priv->qos_data.qos_enable) | |
852 | return; | |
853 | ||
854 | spin_lock_irqsave(&priv->lock, flags); | |
855 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
856 | ||
857 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
858 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
859 | priv->qos_data.def_qos_parm.qos_flags |= | |
860 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
b481de9c ZY |
861 | if (priv->qos_data.qos_active) |
862 | priv->qos_data.def_qos_parm.qos_flags |= | |
863 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
864 | ||
c8b0e6e1 | 865 | #ifdef CONFIG_IWL4965_HT |
fd105e79 | 866 | if (priv->current_ht_config.is_ht) |
f1f1f5c7 | 867 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
c8b0e6e1 | 868 | #endif /* CONFIG_IWL4965_HT */ |
f1f1f5c7 | 869 | |
b481de9c ZY |
870 | spin_unlock_irqrestore(&priv->lock, flags); |
871 | ||
3109ece1 | 872 | if (force || iwl_is_associated(priv)) { |
f1f1f5c7 TW |
873 | IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
874 | priv->qos_data.qos_active, | |
875 | priv->qos_data.def_qos_parm.qos_flags); | |
b481de9c | 876 | |
bb8c093b | 877 | iwl4965_send_qos_params_command(priv, |
b481de9c ZY |
878 | &(priv->qos_data.def_qos_parm)); |
879 | } | |
880 | } | |
881 | ||
c79dd5b5 | 882 | int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
883 | { |
884 | /* Filter incoming packets to determine if they are targeted toward | |
885 | * this network, discarding packets coming from ourselves */ | |
886 | switch (priv->iw_mode) { | |
887 | case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */ | |
888 | /* packets from our adapter are dropped (echo) */ | |
889 | if (!compare_ether_addr(header->addr2, priv->mac_addr)) | |
890 | return 0; | |
891 | /* {broad,multi}cast packets to our IBSS go through */ | |
892 | if (is_multicast_ether_addr(header->addr1)) | |
893 | return !compare_ether_addr(header->addr3, priv->bssid); | |
894 | /* packets to our adapter go through */ | |
895 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
896 | case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */ | |
897 | /* packets from our adapter are dropped (echo) */ | |
898 | if (!compare_ether_addr(header->addr3, priv->mac_addr)) | |
899 | return 0; | |
900 | /* {broad,multi}cast packets to our BSS go through */ | |
901 | if (is_multicast_ether_addr(header->addr1)) | |
902 | return !compare_ether_addr(header->addr2, priv->bssid); | |
903 | /* packets to our adapter go through */ | |
904 | return !compare_ether_addr(header->addr1, priv->mac_addr); | |
69dc5d9d TW |
905 | default: |
906 | break; | |
b481de9c ZY |
907 | } |
908 | ||
909 | return 1; | |
910 | } | |
911 | ||
b481de9c | 912 | |
b481de9c ZY |
913 | |
914 | /** | |
bb8c093b | 915 | * iwl4965_scan_cancel - Cancel any currently executing HW scan |
b481de9c ZY |
916 | * |
917 | * NOTE: priv->mutex is not required before calling this function | |
918 | */ | |
c79dd5b5 | 919 | static int iwl4965_scan_cancel(struct iwl_priv *priv) |
b481de9c ZY |
920 | { |
921 | if (!test_bit(STATUS_SCAN_HW, &priv->status)) { | |
922 | clear_bit(STATUS_SCANNING, &priv->status); | |
923 | return 0; | |
924 | } | |
925 | ||
926 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
927 | if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
928 | IWL_DEBUG_SCAN("Queuing scan abort.\n"); | |
929 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
930 | queue_work(priv->workqueue, &priv->abort_scan); | |
931 | ||
932 | } else | |
933 | IWL_DEBUG_SCAN("Scan abort already in progress.\n"); | |
934 | ||
935 | return test_bit(STATUS_SCANNING, &priv->status); | |
936 | } | |
937 | ||
938 | return 0; | |
939 | } | |
940 | ||
941 | /** | |
bb8c093b | 942 | * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan |
b481de9c ZY |
943 | * @ms: amount of time to wait (in milliseconds) for scan to abort |
944 | * | |
945 | * NOTE: priv->mutex must be held before calling this function | |
946 | */ | |
c79dd5b5 | 947 | static int iwl4965_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms) |
b481de9c ZY |
948 | { |
949 | unsigned long now = jiffies; | |
950 | int ret; | |
951 | ||
bb8c093b | 952 | ret = iwl4965_scan_cancel(priv); |
b481de9c ZY |
953 | if (ret && ms) { |
954 | mutex_unlock(&priv->mutex); | |
955 | while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && | |
956 | test_bit(STATUS_SCANNING, &priv->status)) | |
957 | msleep(1); | |
958 | mutex_lock(&priv->mutex); | |
959 | ||
960 | return test_bit(STATUS_SCANNING, &priv->status); | |
961 | } | |
962 | ||
963 | return ret; | |
964 | } | |
965 | ||
c79dd5b5 | 966 | static void iwl4965_sequence_reset(struct iwl_priv *priv) |
b481de9c ZY |
967 | { |
968 | /* Reset ieee stats */ | |
969 | ||
970 | /* We don't reset the net_device_stats (ieee->stats) on | |
971 | * re-association */ | |
972 | ||
973 | priv->last_seq_num = -1; | |
974 | priv->last_frag_num = -1; | |
975 | priv->last_packet_time = 0; | |
976 | ||
bb8c093b | 977 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
978 | } |
979 | ||
980 | #define MAX_UCODE_BEACON_INTERVAL 4096 | |
981 | #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA) | |
982 | ||
bb8c093b | 983 | static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
984 | { |
985 | u16 new_val = 0; | |
986 | u16 beacon_factor = 0; | |
987 | ||
988 | beacon_factor = | |
989 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
990 | / MAX_UCODE_BEACON_INTERVAL; | |
991 | new_val = beacon_val / beacon_factor; | |
992 | ||
993 | return cpu_to_le16(new_val); | |
994 | } | |
995 | ||
c79dd5b5 | 996 | static void iwl4965_setup_rxon_timing(struct iwl_priv *priv) |
b481de9c ZY |
997 | { |
998 | u64 interval_tm_unit; | |
999 | u64 tsf, result; | |
1000 | unsigned long flags; | |
1001 | struct ieee80211_conf *conf = NULL; | |
1002 | u16 beacon_int = 0; | |
1003 | ||
1004 | conf = ieee80211_get_hw_conf(priv->hw); | |
1005 | ||
1006 | spin_lock_irqsave(&priv->lock, flags); | |
3109ece1 TW |
1007 | priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32); |
1008 | priv->rxon_timing.timestamp.dw[0] = | |
1009 | cpu_to_le32(priv->timestamp & 0xFFFFFFFF); | |
b481de9c ZY |
1010 | |
1011 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; | |
1012 | ||
3109ece1 | 1013 | tsf = priv->timestamp; |
b481de9c ZY |
1014 | |
1015 | beacon_int = priv->beacon_int; | |
1016 | spin_unlock_irqrestore(&priv->lock, flags); | |
1017 | ||
1018 | if (priv->iw_mode == IEEE80211_IF_TYPE_STA) { | |
1019 | if (beacon_int == 0) { | |
1020 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
1021 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
1022 | } else { | |
1023 | priv->rxon_timing.beacon_interval = | |
1024 | cpu_to_le16(beacon_int); | |
1025 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 1026 | iwl4965_adjust_beacon_interval( |
b481de9c ZY |
1027 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
1028 | } | |
1029 | ||
1030 | priv->rxon_timing.atim_window = 0; | |
1031 | } else { | |
1032 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 1033 | iwl4965_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
1034 | /* TODO: we need to get atim_window from upper stack |
1035 | * for now we set to 0 */ | |
1036 | priv->rxon_timing.atim_window = 0; | |
1037 | } | |
1038 | ||
1039 | interval_tm_unit = | |
1040 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
1041 | result = do_div(tsf, interval_tm_unit); | |
1042 | priv->rxon_timing.beacon_init_val = | |
1043 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
1044 | ||
1045 | IWL_DEBUG_ASSOC | |
1046 | ("beacon interval %d beacon timer %d beacon tim %d\n", | |
1047 | le16_to_cpu(priv->rxon_timing.beacon_interval), | |
1048 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
1049 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
1050 | } | |
1051 | ||
c79dd5b5 | 1052 | static int iwl4965_scan_initiate(struct iwl_priv *priv) |
b481de9c ZY |
1053 | { |
1054 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
1055 | IWL_ERROR("APs don't scan.\n"); | |
1056 | return 0; | |
1057 | } | |
1058 | ||
fee1247a | 1059 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
1060 | IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); |
1061 | return -EIO; | |
1062 | } | |
1063 | ||
1064 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1065 | IWL_DEBUG_SCAN("Scan already in progress.\n"); | |
1066 | return -EAGAIN; | |
1067 | } | |
1068 | ||
1069 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1070 | IWL_DEBUG_SCAN("Scan request while abort pending. " | |
1071 | "Queuing.\n"); | |
1072 | return -EAGAIN; | |
1073 | } | |
1074 | ||
1075 | IWL_DEBUG_INFO("Starting scan...\n"); | |
1076 | priv->scan_bands = 2; | |
1077 | set_bit(STATUS_SCANNING, &priv->status); | |
1078 | priv->scan_start = jiffies; | |
1079 | priv->scan_pass_start = priv->scan_start; | |
1080 | ||
1081 | queue_work(priv->workqueue, &priv->request_scan); | |
1082 | ||
1083 | return 0; | |
1084 | } | |
1085 | ||
b481de9c | 1086 | |
c79dd5b5 | 1087 | static void iwl4965_set_flags_for_phymode(struct iwl_priv *priv, |
8318d78a | 1088 | enum ieee80211_band band) |
b481de9c | 1089 | { |
8318d78a | 1090 | if (band == IEEE80211_BAND_5GHZ) { |
b481de9c ZY |
1091 | priv->staging_rxon.flags &= |
1092 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
1093 | | RXON_FLG_CCK_MSK); | |
1094 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1095 | } else { | |
508e32e1 | 1096 | /* Copied from iwl4965_post_associate() */ |
b481de9c ZY |
1097 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
1098 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1099 | else | |
1100 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1101 | ||
1102 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
1103 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1104 | ||
1105 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
1106 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
1107 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | /* | |
01ebd063 | 1112 | * initialize rxon structure with default values from eeprom |
b481de9c | 1113 | */ |
c79dd5b5 | 1114 | static void iwl4965_connection_init_rx_config(struct iwl_priv *priv) |
b481de9c | 1115 | { |
bf85ea4f | 1116 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
1117 | |
1118 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
1119 | ||
1120 | switch (priv->iw_mode) { | |
1121 | case IEEE80211_IF_TYPE_AP: | |
1122 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; | |
1123 | break; | |
1124 | ||
1125 | case IEEE80211_IF_TYPE_STA: | |
1126 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; | |
1127 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
1128 | break; | |
1129 | ||
1130 | case IEEE80211_IF_TYPE_IBSS: | |
1131 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; | |
1132 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
1133 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
1134 | RXON_FILTER_ACCEPT_GRP_MSK; | |
1135 | break; | |
1136 | ||
1137 | case IEEE80211_IF_TYPE_MNTR: | |
1138 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; | |
1139 | priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | | |
1140 | RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; | |
1141 | break; | |
69dc5d9d TW |
1142 | default: |
1143 | IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode); | |
1144 | break; | |
b481de9c ZY |
1145 | } |
1146 | ||
1147 | #if 0 | |
1148 | /* TODO: Figure out when short_preamble would be set and cache from | |
1149 | * that */ | |
1150 | if (!hw_to_local(priv->hw)->short_preamble) | |
1151 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
1152 | else | |
1153 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
1154 | #endif | |
1155 | ||
8622e705 | 1156 | ch_info = iwl_get_channel_info(priv, priv->band, |
b481de9c ZY |
1157 | le16_to_cpu(priv->staging_rxon.channel)); |
1158 | ||
1159 | if (!ch_info) | |
1160 | ch_info = &priv->channel_info[0]; | |
1161 | ||
1162 | /* | |
1163 | * in some case A channels are all non IBSS | |
1164 | * in this case force B/G channel | |
1165 | */ | |
1166 | if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && | |
1167 | !(is_channel_ibss(ch_info))) | |
1168 | ch_info = &priv->channel_info[0]; | |
1169 | ||
1170 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
8318d78a | 1171 | priv->band = ch_info->band; |
b481de9c | 1172 | |
8318d78a | 1173 | iwl4965_set_flags_for_phymode(priv, priv->band); |
b481de9c ZY |
1174 | |
1175 | priv->staging_rxon.ofdm_basic_rates = | |
1176 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1177 | priv->staging_rxon.cck_basic_rates = | |
1178 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1179 | ||
1180 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
1181 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
1182 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
1183 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); | |
1184 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; | |
1185 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; | |
c7de35cd | 1186 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
1187 | } |
1188 | ||
c79dd5b5 | 1189 | static int iwl4965_set_mode(struct iwl_priv *priv, int mode) |
b481de9c | 1190 | { |
b481de9c | 1191 | if (mode == IEEE80211_IF_TYPE_IBSS) { |
bf85ea4f | 1192 | const struct iwl_channel_info *ch_info; |
b481de9c | 1193 | |
8622e705 | 1194 | ch_info = iwl_get_channel_info(priv, |
8318d78a | 1195 | priv->band, |
b481de9c ZY |
1196 | le16_to_cpu(priv->staging_rxon.channel)); |
1197 | ||
1198 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
1199 | IWL_ERROR("channel %d not IBSS channel\n", | |
1200 | le16_to_cpu(priv->staging_rxon.channel)); | |
1201 | return -EINVAL; | |
1202 | } | |
1203 | } | |
1204 | ||
b481de9c ZY |
1205 | priv->iw_mode = mode; |
1206 | ||
bb8c093b | 1207 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
1208 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
1209 | ||
bf85ea4f | 1210 | iwlcore_clear_stations_table(priv); |
b481de9c | 1211 | |
fde3571f | 1212 | /* dont commit rxon if rf-kill is on*/ |
fee1247a | 1213 | if (!iwl_is_ready_rf(priv)) |
fde3571f MA |
1214 | return -EAGAIN; |
1215 | ||
1216 | cancel_delayed_work(&priv->scan_check); | |
1217 | if (iwl4965_scan_cancel_timeout(priv, 100)) { | |
1218 | IWL_WARNING("Aborted scan still in progress after 100ms\n"); | |
1219 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
1220 | return -EAGAIN; | |
1221 | } | |
1222 | ||
bb8c093b | 1223 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
1224 | |
1225 | return 0; | |
1226 | } | |
1227 | ||
c79dd5b5 | 1228 | static void iwl4965_set_rate(struct iwl_priv *priv) |
b481de9c | 1229 | { |
8318d78a | 1230 | const struct ieee80211_supported_band *hw = NULL; |
b481de9c ZY |
1231 | struct ieee80211_rate *rate; |
1232 | int i; | |
1233 | ||
d1141dfb | 1234 | hw = iwl_get_hw_mode(priv, priv->band); |
c4ba9621 SA |
1235 | if (!hw) { |
1236 | IWL_ERROR("Failed to set rate: unable to get hw mode\n"); | |
1237 | return; | |
1238 | } | |
b481de9c ZY |
1239 | |
1240 | priv->active_rate = 0; | |
1241 | priv->active_rate_basic = 0; | |
1242 | ||
8318d78a JB |
1243 | for (i = 0; i < hw->n_bitrates; i++) { |
1244 | rate = &(hw->bitrates[i]); | |
1245 | if (rate->hw_value < IWL_RATE_COUNT) | |
1246 | priv->active_rate |= (1 << rate->hw_value); | |
b481de9c ZY |
1247 | } |
1248 | ||
1249 | IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n", | |
1250 | priv->active_rate, priv->active_rate_basic); | |
1251 | ||
1252 | /* | |
1253 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
1254 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
1255 | * OFDM | |
1256 | */ | |
1257 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
1258 | priv->staging_rxon.cck_basic_rates = | |
1259 | ((priv->active_rate_basic & | |
1260 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
1261 | else | |
1262 | priv->staging_rxon.cck_basic_rates = | |
1263 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1264 | ||
1265 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
1266 | priv->staging_rxon.ofdm_basic_rates = | |
1267 | ((priv->active_rate_basic & | |
1268 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
1269 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
1270 | else | |
1271 | priv->staging_rxon.ofdm_basic_rates = | |
1272 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1273 | } | |
1274 | ||
ad97edd2 | 1275 | void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio) |
b481de9c ZY |
1276 | { |
1277 | unsigned long flags; | |
1278 | ||
1279 | if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1280 | return; | |
1281 | ||
1282 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", | |
1283 | disable_radio ? "OFF" : "ON"); | |
1284 | ||
1285 | if (disable_radio) { | |
bb8c093b | 1286 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
1287 | /* FIXME: This is a workaround for AP */ |
1288 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
1289 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 1290 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1291 | CSR_UCODE_SW_BIT_RFKILL); |
1292 | spin_unlock_irqrestore(&priv->lock, flags); | |
ad97edd2 | 1293 | /* call the host command only if no hw rf-kill set */ |
59003835 MA |
1294 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && |
1295 | iwl_is_ready(priv)) | |
ad97edd2 MA |
1296 | iwl4965_send_card_state(priv, |
1297 | CARD_STATE_CMD_DISABLE, | |
1298 | 0); | |
b481de9c | 1299 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
ad97edd2 MA |
1300 | |
1301 | /* make sure mac80211 stop sending Tx frame */ | |
1302 | if (priv->mac80211_registered) | |
1303 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
1304 | } |
1305 | return; | |
1306 | } | |
1307 | ||
1308 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 1309 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
b481de9c ZY |
1310 | |
1311 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1312 | spin_unlock_irqrestore(&priv->lock, flags); | |
1313 | ||
1314 | /* wake up ucode */ | |
1315 | msleep(10); | |
1316 | ||
1317 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
1318 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1319 | if (!iwl_grab_nic_access(priv)) | |
1320 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1321 | spin_unlock_irqrestore(&priv->lock, flags); |
1322 | ||
1323 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
1324 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
1325 | "disabled by HW switch\n"); | |
1326 | return; | |
1327 | } | |
1328 | ||
1329 | queue_work(priv->workqueue, &priv->restart); | |
1330 | return; | |
1331 | } | |
1332 | ||
b481de9c ZY |
1333 | #define IWL_PACKET_RETRY_TIME HZ |
1334 | ||
c79dd5b5 | 1335 | int iwl4965_is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) |
b481de9c ZY |
1336 | { |
1337 | u16 sc = le16_to_cpu(header->seq_ctrl); | |
1338 | u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4; | |
1339 | u16 frag = sc & IEEE80211_SCTL_FRAG; | |
1340 | u16 *last_seq, *last_frag; | |
1341 | unsigned long *last_time; | |
1342 | ||
1343 | switch (priv->iw_mode) { | |
1344 | case IEEE80211_IF_TYPE_IBSS:{ | |
1345 | struct list_head *p; | |
bb8c093b | 1346 | struct iwl4965_ibss_seq *entry = NULL; |
b481de9c ZY |
1347 | u8 *mac = header->addr2; |
1348 | int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1); | |
1349 | ||
1350 | __list_for_each(p, &priv->ibss_mac_hash[index]) { | |
bb8c093b | 1351 | entry = list_entry(p, struct iwl4965_ibss_seq, list); |
b481de9c ZY |
1352 | if (!compare_ether_addr(entry->mac, mac)) |
1353 | break; | |
1354 | } | |
1355 | if (p == &priv->ibss_mac_hash[index]) { | |
1356 | entry = kzalloc(sizeof(*entry), GFP_ATOMIC); | |
1357 | if (!entry) { | |
bc434dd2 | 1358 | IWL_ERROR("Cannot malloc new mac entry\n"); |
b481de9c ZY |
1359 | return 0; |
1360 | } | |
1361 | memcpy(entry->mac, mac, ETH_ALEN); | |
1362 | entry->seq_num = seq; | |
1363 | entry->frag_num = frag; | |
1364 | entry->packet_time = jiffies; | |
bc434dd2 | 1365 | list_add(&entry->list, &priv->ibss_mac_hash[index]); |
b481de9c ZY |
1366 | return 0; |
1367 | } | |
1368 | last_seq = &entry->seq_num; | |
1369 | last_frag = &entry->frag_num; | |
1370 | last_time = &entry->packet_time; | |
1371 | break; | |
1372 | } | |
1373 | case IEEE80211_IF_TYPE_STA: | |
1374 | last_seq = &priv->last_seq_num; | |
1375 | last_frag = &priv->last_frag_num; | |
1376 | last_time = &priv->last_packet_time; | |
1377 | break; | |
1378 | default: | |
1379 | return 0; | |
1380 | } | |
1381 | if ((*last_seq == seq) && | |
1382 | time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) { | |
1383 | if (*last_frag == frag) | |
1384 | goto drop; | |
1385 | if (*last_frag + 1 != frag) | |
1386 | /* out-of-order fragment */ | |
1387 | goto drop; | |
1388 | } else | |
1389 | *last_seq = seq; | |
1390 | ||
1391 | *last_frag = frag; | |
1392 | *last_time = jiffies; | |
1393 | return 0; | |
1394 | ||
1395 | drop: | |
1396 | return 1; | |
1397 | } | |
1398 | ||
c8b0e6e1 | 1399 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
1400 | |
1401 | #include "iwl-spectrum.h" | |
1402 | ||
1403 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
1404 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
1405 | #define TIME_UNIT 1024 | |
1406 | ||
1407 | /* | |
1408 | * extended beacon time format | |
1409 | * time in usec will be changed into a 32-bit value in 8:24 format | |
1410 | * the high 1 byte is the beacon counts | |
1411 | * the lower 3 bytes is the time in usec within one beacon interval | |
1412 | */ | |
1413 | ||
bb8c093b | 1414 | static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
1415 | { |
1416 | u32 quot; | |
1417 | u32 rem; | |
1418 | u32 interval = beacon_interval * 1024; | |
1419 | ||
1420 | if (!interval || !usec) | |
1421 | return 0; | |
1422 | ||
1423 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
1424 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
1425 | ||
1426 | return (quot << 24) + rem; | |
1427 | } | |
1428 | ||
1429 | /* base is usually what we get from ucode with each received frame, | |
1430 | * the same as HW timer counter counting down | |
1431 | */ | |
1432 | ||
bb8c093b | 1433 | static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
1434 | { |
1435 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
1436 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
1437 | u32 interval = beacon_interval * TIME_UNIT; | |
1438 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
1439 | (addon & BEACON_TIME_MASK_HIGH); | |
1440 | ||
1441 | if (base_low > addon_low) | |
1442 | res += base_low - addon_low; | |
1443 | else if (base_low < addon_low) { | |
1444 | res += interval + base_low - addon_low; | |
1445 | res += (1 << 24); | |
1446 | } else | |
1447 | res += (1 << 24); | |
1448 | ||
1449 | return cpu_to_le32(res); | |
1450 | } | |
1451 | ||
c79dd5b5 | 1452 | static int iwl4965_get_measurement(struct iwl_priv *priv, |
b481de9c ZY |
1453 | struct ieee80211_measurement_params *params, |
1454 | u8 type) | |
1455 | { | |
bb8c093b | 1456 | struct iwl4965_spectrum_cmd spectrum; |
db11d634 | 1457 | struct iwl_rx_packet *res; |
857485c0 | 1458 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
1459 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
1460 | .data = (void *)&spectrum, | |
1461 | .meta.flags = CMD_WANT_SKB, | |
1462 | }; | |
1463 | u32 add_time = le64_to_cpu(params->start_time); | |
1464 | int rc; | |
1465 | int spectrum_resp_status; | |
1466 | int duration = le16_to_cpu(params->duration); | |
1467 | ||
3109ece1 | 1468 | if (iwl_is_associated(priv)) |
b481de9c | 1469 | add_time = |
bb8c093b | 1470 | iwl4965_usecs_to_beacons( |
b481de9c ZY |
1471 | le64_to_cpu(params->start_time) - priv->last_tsf, |
1472 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1473 | ||
1474 | memset(&spectrum, 0, sizeof(spectrum)); | |
1475 | ||
1476 | spectrum.channel_count = cpu_to_le16(1); | |
1477 | spectrum.flags = | |
1478 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
1479 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
1480 | cmd.len = sizeof(spectrum); | |
1481 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
1482 | ||
3109ece1 | 1483 | if (iwl_is_associated(priv)) |
b481de9c | 1484 | spectrum.start_time = |
bb8c093b | 1485 | iwl4965_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
1486 | add_time, |
1487 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1488 | else | |
1489 | spectrum.start_time = 0; | |
1490 | ||
1491 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
1492 | spectrum.channels[0].channel = params->channel; | |
1493 | spectrum.channels[0].type = type; | |
1494 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
1495 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | | |
1496 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
1497 | ||
857485c0 | 1498 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1499 | if (rc) |
1500 | return rc; | |
1501 | ||
db11d634 | 1502 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c ZY |
1503 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
1504 | IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); | |
1505 | rc = -EIO; | |
1506 | } | |
1507 | ||
1508 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
1509 | switch (spectrum_resp_status) { | |
1510 | case 0: /* Command will be handled */ | |
1511 | if (res->u.spectrum.id != 0xff) { | |
1512 | IWL_DEBUG_INFO | |
1513 | ("Replaced existing measurement: %d\n", | |
1514 | res->u.spectrum.id); | |
1515 | priv->measurement_status &= ~MEASUREMENT_READY; | |
1516 | } | |
1517 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
1518 | rc = 0; | |
1519 | break; | |
1520 | ||
1521 | case 1: /* Command will not be handled */ | |
1522 | rc = -EAGAIN; | |
1523 | break; | |
1524 | } | |
1525 | ||
1526 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1527 | ||
1528 | return rc; | |
1529 | } | |
1530 | #endif | |
1531 | ||
b481de9c ZY |
1532 | /****************************************************************************** |
1533 | * | |
1534 | * Generic RX handler implementations | |
1535 | * | |
1536 | ******************************************************************************/ | |
885ba202 TW |
1537 | static void iwl_rx_reply_alive(struct iwl_priv *priv, |
1538 | struct iwl_rx_mem_buffer *rxb) | |
b481de9c | 1539 | { |
db11d634 | 1540 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
885ba202 | 1541 | struct iwl_alive_resp *palive; |
b481de9c ZY |
1542 | struct delayed_work *pwork; |
1543 | ||
1544 | palive = &pkt->u.alive_frame; | |
1545 | ||
1546 | IWL_DEBUG_INFO("Alive ucode status 0x%08X revision " | |
1547 | "0x%01X 0x%01X\n", | |
1548 | palive->is_valid, palive->ver_type, | |
1549 | palive->ver_subtype); | |
1550 | ||
1551 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
1552 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
1553 | memcpy(&priv->card_alive_init, | |
1554 | &pkt->u.alive_frame, | |
885ba202 | 1555 | sizeof(struct iwl_init_alive_resp)); |
b481de9c ZY |
1556 | pwork = &priv->init_alive_start; |
1557 | } else { | |
1558 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
1559 | memcpy(&priv->card_alive, &pkt->u.alive_frame, | |
885ba202 | 1560 | sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
1561 | pwork = &priv->alive_start; |
1562 | } | |
1563 | ||
1564 | /* We delay the ALIVE response by 5ms to | |
1565 | * give the HW RF Kill time to activate... */ | |
1566 | if (palive->is_valid == UCODE_VALID_OK) | |
1567 | queue_delayed_work(priv->workqueue, pwork, | |
1568 | msecs_to_jiffies(5)); | |
1569 | else | |
1570 | IWL_WARNING("uCode did not respond OK.\n"); | |
1571 | } | |
1572 | ||
c79dd5b5 | 1573 | static void iwl4965_rx_reply_error(struct iwl_priv *priv, |
a55360e4 | 1574 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1575 | { |
db11d634 | 1576 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1577 | |
1578 | IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) " | |
1579 | "seq 0x%04X ser 0x%08X\n", | |
1580 | le32_to_cpu(pkt->u.err_resp.error_type), | |
1581 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
1582 | pkt->u.err_resp.cmd_id, | |
1583 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
1584 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
1585 | } | |
1586 | ||
1587 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
1588 | ||
a55360e4 | 1589 | static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1590 | { |
db11d634 | 1591 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
c1adf9fb | 1592 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
bb8c093b | 1593 | struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif); |
b481de9c ZY |
1594 | IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", |
1595 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); | |
1596 | rxon->channel = csa->channel; | |
1597 | priv->staging_rxon.channel = csa->channel; | |
1598 | } | |
1599 | ||
c79dd5b5 | 1600 | static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv, |
a55360e4 | 1601 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1602 | { |
c8b0e6e1 | 1603 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
db11d634 | 1604 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1605 | struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif); |
b481de9c ZY |
1606 | |
1607 | if (!report->state) { | |
f3d67999 EK |
1608 | IWL_DEBUG(IWL_DL_11H, |
1609 | "Spectrum Measure Notification: Start\n"); | |
b481de9c ZY |
1610 | return; |
1611 | } | |
1612 | ||
1613 | memcpy(&priv->measure_report, report, sizeof(*report)); | |
1614 | priv->measurement_status |= MEASUREMENT_READY; | |
1615 | #endif | |
1616 | } | |
1617 | ||
c79dd5b5 | 1618 | static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv, |
a55360e4 | 1619 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1620 | { |
0a6857e7 | 1621 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1622 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1623 | struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif); |
b481de9c ZY |
1624 | IWL_DEBUG_RX("sleep mode: %d, src: %d\n", |
1625 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
1626 | #endif | |
1627 | } | |
1628 | ||
c79dd5b5 | 1629 | static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
a55360e4 | 1630 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1631 | { |
db11d634 | 1632 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1633 | IWL_DEBUG_RADIO("Dumping %d bytes of unhandled " |
1634 | "notification for %s:\n", | |
1635 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
bf403db8 | 1636 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
b481de9c ZY |
1637 | } |
1638 | ||
bb8c093b | 1639 | static void iwl4965_bg_beacon_update(struct work_struct *work) |
b481de9c | 1640 | { |
c79dd5b5 TW |
1641 | struct iwl_priv *priv = |
1642 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
1643 | struct sk_buff *beacon; |
1644 | ||
1645 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 1646 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
1647 | |
1648 | if (!beacon) { | |
1649 | IWL_ERROR("update beacon failed\n"); | |
1650 | return; | |
1651 | } | |
1652 | ||
1653 | mutex_lock(&priv->mutex); | |
1654 | /* new beacon skb is allocated every time; dispose previous.*/ | |
1655 | if (priv->ibss_beacon) | |
1656 | dev_kfree_skb(priv->ibss_beacon); | |
1657 | ||
1658 | priv->ibss_beacon = beacon; | |
1659 | mutex_unlock(&priv->mutex); | |
1660 | ||
bb8c093b | 1661 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
1662 | } |
1663 | ||
c79dd5b5 | 1664 | static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 1665 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1666 | { |
0a6857e7 | 1667 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1668 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1669 | struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status); |
1670 | u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); | |
b481de9c ZY |
1671 | |
1672 | IWL_DEBUG_RX("beacon status %x retries %d iss %d " | |
1673 | "tsf %d %d rate %d\n", | |
1674 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
1675 | beacon->beacon_notify_hdr.failure_frame, | |
1676 | le32_to_cpu(beacon->ibss_mgr_status), | |
1677 | le32_to_cpu(beacon->high_tsf), | |
1678 | le32_to_cpu(beacon->low_tsf), rate); | |
1679 | #endif | |
1680 | ||
1681 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && | |
1682 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) | |
1683 | queue_work(priv->workqueue, &priv->beacon_update); | |
1684 | } | |
1685 | ||
1686 | /* Service response to REPLY_SCAN_CMD (0x80) */ | |
c79dd5b5 | 1687 | static void iwl4965_rx_reply_scan(struct iwl_priv *priv, |
a55360e4 | 1688 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1689 | { |
0a6857e7 | 1690 | #ifdef CONFIG_IWLWIFI_DEBUG |
db11d634 | 1691 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1692 | struct iwl4965_scanreq_notification *notif = |
1693 | (struct iwl4965_scanreq_notification *)pkt->u.raw; | |
b481de9c ZY |
1694 | |
1695 | IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); | |
1696 | #endif | |
1697 | } | |
1698 | ||
1699 | /* Service SCAN_START_NOTIFICATION (0x82) */ | |
c79dd5b5 | 1700 | static void iwl4965_rx_scan_start_notif(struct iwl_priv *priv, |
a55360e4 | 1701 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1702 | { |
db11d634 | 1703 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1704 | struct iwl4965_scanstart_notification *notif = |
1705 | (struct iwl4965_scanstart_notification *)pkt->u.raw; | |
b481de9c ZY |
1706 | priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); |
1707 | IWL_DEBUG_SCAN("Scan start: " | |
1708 | "%d [802.11%s] " | |
1709 | "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", | |
1710 | notif->channel, | |
1711 | notif->band ? "bg" : "a", | |
1712 | notif->tsf_high, | |
1713 | notif->tsf_low, notif->status, notif->beacon_timer); | |
1714 | } | |
1715 | ||
1716 | /* Service SCAN_RESULTS_NOTIFICATION (0x83) */ | |
c79dd5b5 | 1717 | static void iwl4965_rx_scan_results_notif(struct iwl_priv *priv, |
a55360e4 | 1718 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1719 | { |
db11d634 | 1720 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b CH |
1721 | struct iwl4965_scanresults_notification *notif = |
1722 | (struct iwl4965_scanresults_notification *)pkt->u.raw; | |
b481de9c ZY |
1723 | |
1724 | IWL_DEBUG_SCAN("Scan ch.res: " | |
1725 | "%d [802.11%s] " | |
1726 | "(TSF: 0x%08X:%08X) - %d " | |
1727 | "elapsed=%lu usec (%dms since last)\n", | |
1728 | notif->channel, | |
1729 | notif->band ? "bg" : "a", | |
1730 | le32_to_cpu(notif->tsf_high), | |
1731 | le32_to_cpu(notif->tsf_low), | |
1732 | le32_to_cpu(notif->statistics[0]), | |
1733 | le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, | |
1734 | jiffies_to_msecs(elapsed_jiffies | |
1735 | (priv->last_scan_jiffies, jiffies))); | |
1736 | ||
1737 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 1738 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
1739 | } |
1740 | ||
1741 | /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ | |
c79dd5b5 | 1742 | static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv, |
a55360e4 | 1743 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1744 | { |
db11d634 | 1745 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 1746 | struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw; |
b481de9c ZY |
1747 | |
1748 | IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", | |
1749 | scan_notif->scanned_channels, | |
1750 | scan_notif->tsf_low, | |
1751 | scan_notif->tsf_high, scan_notif->status); | |
1752 | ||
1753 | /* The HW is no longer scanning */ | |
1754 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
1755 | ||
1756 | /* The scan completion notification came in, so kill that timer... */ | |
1757 | cancel_delayed_work(&priv->scan_check); | |
1758 | ||
1759 | IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", | |
1760 | (priv->scan_bands == 2) ? "2.4" : "5.2", | |
1761 | jiffies_to_msecs(elapsed_jiffies | |
1762 | (priv->scan_pass_start, jiffies))); | |
1763 | ||
1764 | /* Remove this scanned band from the list | |
1765 | * of pending bands to scan */ | |
1766 | priv->scan_bands--; | |
1767 | ||
1768 | /* If a request to abort was given, or the scan did not succeed | |
1769 | * then we reset the scan state machine and terminate, | |
1770 | * re-queuing another scan if one has been requested */ | |
1771 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
1772 | IWL_DEBUG_INFO("Aborted scan completed.\n"); | |
1773 | clear_bit(STATUS_SCAN_ABORTING, &priv->status); | |
1774 | } else { | |
1775 | /* If there are more bands on this scan pass reschedule */ | |
1776 | if (priv->scan_bands > 0) | |
1777 | goto reschedule; | |
1778 | } | |
1779 | ||
1780 | priv->last_scan_jiffies = jiffies; | |
7878a5a4 | 1781 | priv->next_scan_jiffies = 0; |
b481de9c ZY |
1782 | IWL_DEBUG_INFO("Setting scan to off\n"); |
1783 | ||
1784 | clear_bit(STATUS_SCANNING, &priv->status); | |
1785 | ||
1786 | IWL_DEBUG_INFO("Scan took %dms\n", | |
1787 | jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); | |
1788 | ||
1789 | queue_work(priv->workqueue, &priv->scan_completed); | |
1790 | ||
1791 | return; | |
1792 | ||
1793 | reschedule: | |
1794 | priv->scan_pass_start = jiffies; | |
1795 | queue_work(priv->workqueue, &priv->request_scan); | |
1796 | } | |
1797 | ||
1798 | /* Handle notification from uCode that card's power state is changing | |
1799 | * due to software, hardware, or critical temperature RFKILL */ | |
c79dd5b5 | 1800 | static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, |
a55360e4 | 1801 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1802 | { |
db11d634 | 1803 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1804 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
1805 | unsigned long status = priv->status; | |
1806 | ||
1807 | IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n", | |
1808 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", | |
1809 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
1810 | ||
1811 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | | |
1812 | RF_CARD_DISABLED)) { | |
1813 | ||
3395f6e9 | 1814 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1815 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
1816 | ||
3395f6e9 TW |
1817 | if (!iwl_grab_nic_access(priv)) { |
1818 | iwl_write_direct32( | |
b481de9c ZY |
1819 | priv, HBUS_TARG_MBX_C, |
1820 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1821 | ||
3395f6e9 | 1822 | iwl_release_nic_access(priv); |
b481de9c ZY |
1823 | } |
1824 | ||
1825 | if (!(flags & RXON_CARD_DISABLED)) { | |
3395f6e9 | 1826 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c | 1827 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3395f6e9 TW |
1828 | if (!iwl_grab_nic_access(priv)) { |
1829 | iwl_write_direct32( | |
b481de9c ZY |
1830 | priv, HBUS_TARG_MBX_C, |
1831 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
1832 | ||
3395f6e9 | 1833 | iwl_release_nic_access(priv); |
b481de9c ZY |
1834 | } |
1835 | } | |
1836 | ||
1837 | if (flags & RF_CARD_DISABLED) { | |
3395f6e9 | 1838 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c | 1839 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
3395f6e9 TW |
1840 | iwl_read32(priv, CSR_UCODE_DRV_GP1); |
1841 | if (!iwl_grab_nic_access(priv)) | |
1842 | iwl_release_nic_access(priv); | |
b481de9c ZY |
1843 | } |
1844 | } | |
1845 | ||
1846 | if (flags & HW_CARD_DISABLED) | |
1847 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1848 | else | |
1849 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
1850 | ||
1851 | ||
1852 | if (flags & SW_CARD_DISABLED) | |
1853 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1854 | else | |
1855 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1856 | ||
1857 | if (!(flags & RXON_CARD_DISABLED)) | |
bb8c093b | 1858 | iwl4965_scan_cancel(priv); |
b481de9c ZY |
1859 | |
1860 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
1861 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
1862 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
1863 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
1864 | queue_work(priv->workqueue, &priv->rf_kill); | |
1865 | else | |
1866 | wake_up_interruptible(&priv->wait_command_queue); | |
1867 | } | |
1868 | ||
37a44211 RR |
1869 | /* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD). |
1870 | * This will be used later in iwl4965_rx_reply_rx() for REPLY_RX_MPDU_CMD. */ | |
1871 | static void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv, | |
1872 | struct iwl_rx_mem_buffer *rxb) | |
1873 | { | |
1874 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; | |
1875 | priv->last_phy_res[0] = 1; | |
1876 | memcpy(&priv->last_phy_res[1], &(pkt->u.raw[0]), | |
1877 | sizeof(struct iwl4965_rx_phy_res)); | |
1878 | } | |
1879 | ||
b481de9c | 1880 | /** |
bb8c093b | 1881 | * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
1882 | * |
1883 | * Setup the RX handlers for each of the reply types sent from the uCode | |
1884 | * to the host. | |
1885 | * | |
1886 | * This function chains into the hardware specific files for them to setup | |
1887 | * any hardware specific handlers as well. | |
1888 | */ | |
c79dd5b5 | 1889 | static void iwl4965_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 1890 | { |
885ba202 | 1891 | priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; |
bb8c093b CH |
1892 | priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error; |
1893 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa; | |
b481de9c | 1894 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
bb8c093b CH |
1895 | iwl4965_rx_spectrum_measure_notif; |
1896 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif; | |
b481de9c | 1897 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
bb8c093b CH |
1898 | iwl4965_rx_pm_debug_statistics_notif; |
1899 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif; | |
b481de9c | 1900 | |
9fbab516 BC |
1901 | /* |
1902 | * The same handler is used for both the REPLY to a discrete | |
1903 | * statistics request from the host as well as for the periodic | |
1904 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 1905 | */ |
bb8c093b CH |
1906 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics; |
1907 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics; | |
37a44211 | 1908 | /* scan handlers */ |
bb8c093b CH |
1909 | priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan; |
1910 | priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif; | |
b481de9c | 1911 | priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = |
bb8c093b | 1912 | iwl4965_rx_scan_results_notif; |
b481de9c | 1913 | priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = |
bb8c093b | 1914 | iwl4965_rx_scan_complete_notif; |
37a44211 | 1915 | /* status change handler */ |
bb8c093b | 1916 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif; |
b481de9c | 1917 | |
c1354754 TW |
1918 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = |
1919 | iwl_rx_missed_beacon_notif; | |
37a44211 RR |
1920 | /* Rx handlers */ |
1921 | priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl4965_rx_reply_rx_phy; | |
1922 | priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl4965_rx_reply_rx; | |
9fbab516 | 1923 | /* Set up hardware specific Rx handlers */ |
d4789efe | 1924 | priv->cfg->ops->lib->rx_handler_setup(priv); |
b481de9c ZY |
1925 | } |
1926 | ||
5c0eef96 MA |
1927 | /* |
1928 | * this should be called while priv->lock is locked | |
1929 | */ | |
a55360e4 | 1930 | static void __iwl_rx_replenish(struct iwl_priv *priv) |
b481de9c | 1931 | { |
a55360e4 TW |
1932 | iwl_rx_allocate(priv); |
1933 | iwl_rx_queue_restock(priv); | |
b481de9c ZY |
1934 | } |
1935 | ||
b481de9c ZY |
1936 | |
1937 | /** | |
a55360e4 | 1938 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
1939 | * |
1940 | * Uses the priv->rx_handlers callback function array to invoke | |
1941 | * the appropriate handlers, including command responses, | |
1942 | * frame-received notifications, and other notifications. | |
1943 | */ | |
a55360e4 | 1944 | void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 1945 | { |
a55360e4 | 1946 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 1947 | struct iwl_rx_packet *pkt; |
a55360e4 | 1948 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
1949 | u32 r, i; |
1950 | int reclaim; | |
1951 | unsigned long flags; | |
5c0eef96 | 1952 | u8 fill_rx = 0; |
d68ab680 | 1953 | u32 count = 8; |
b481de9c | 1954 | |
6440adb5 CB |
1955 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
1956 | * buffer that the driver may process (last buffer filled by ucode). */ | |
d67f5489 | 1957 | r = priv->cfg->ops->lib->shared_mem_rx_idx(priv); |
b481de9c ZY |
1958 | i = rxq->read; |
1959 | ||
1960 | /* Rx interrupt, but nothing sent from uCode */ | |
1961 | if (i == r) | |
f3d67999 | 1962 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i); |
b481de9c | 1963 | |
a55360e4 | 1964 | if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
5c0eef96 MA |
1965 | fill_rx = 1; |
1966 | ||
b481de9c ZY |
1967 | while (i != r) { |
1968 | rxb = rxq->queue[i]; | |
1969 | ||
9fbab516 | 1970 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
1971 | * then a bug has been introduced in the queue refilling |
1972 | * routines -- catch it here */ | |
1973 | BUG_ON(rxb == NULL); | |
1974 | ||
1975 | rxq->queue[i] = NULL; | |
1976 | ||
1977 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 1978 | priv->hw_params.rx_buf_size, |
b481de9c | 1979 | PCI_DMA_FROMDEVICE); |
db11d634 | 1980 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1981 | |
1982 | /* Reclaim a command buffer only if this packet is a response | |
1983 | * to a (driver-originated) command. | |
1984 | * If the packet (e.g. Rx frame) originated from uCode, | |
1985 | * there is no command buffer to reclaim. | |
1986 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1987 | * but apparently a few don't get set; catch them here. */ | |
1988 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
1989 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 1990 | (pkt->hdr.cmd != REPLY_RX) && |
cfe01709 | 1991 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
1992 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
1993 | (pkt->hdr.cmd != REPLY_TX); | |
1994 | ||
1995 | /* Based on type of command response or notification, | |
1996 | * handle those that need handling via function in | |
bb8c093b | 1997 | * rx_handlers table. See iwl4965_setup_rx_handlers() */ |
b481de9c | 1998 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
f3d67999 EK |
1999 | IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r, |
2000 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
b481de9c ZY |
2001 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
2002 | } else { | |
2003 | /* No handling needed */ | |
f3d67999 | 2004 | IWL_DEBUG(IWL_DL_RX, |
b481de9c ZY |
2005 | "r %d i %d No handler needed for %s, 0x%02x\n", |
2006 | r, i, get_cmd_string(pkt->hdr.cmd), | |
2007 | pkt->hdr.cmd); | |
2008 | } | |
2009 | ||
2010 | if (reclaim) { | |
9fbab516 | 2011 | /* Invoke any callbacks, transfer the skb to caller, and |
857485c0 | 2012 | * fire off the (possibly) blocking iwl_send_cmd() |
b481de9c ZY |
2013 | * as we reclaim the driver command queue */ |
2014 | if (rxb && rxb->skb) | |
17b88929 | 2015 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c ZY |
2016 | else |
2017 | IWL_WARNING("Claim null rxb?\n"); | |
2018 | } | |
2019 | ||
2020 | /* For now we just don't re-use anything. We can tweak this | |
2021 | * later to try and re-use notification packets and SKBs that | |
2022 | * fail to Rx correctly */ | |
2023 | if (rxb->skb != NULL) { | |
2024 | priv->alloc_rxb_skb--; | |
2025 | dev_kfree_skb_any(rxb->skb); | |
2026 | rxb->skb = NULL; | |
2027 | } | |
2028 | ||
2029 | pci_unmap_single(priv->pci_dev, rxb->dma_addr, | |
5425e490 | 2030 | priv->hw_params.rx_buf_size, |
9ee1ba47 | 2031 | PCI_DMA_FROMDEVICE); |
b481de9c ZY |
2032 | spin_lock_irqsave(&rxq->lock, flags); |
2033 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
2034 | spin_unlock_irqrestore(&rxq->lock, flags); | |
2035 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
2036 | /* If there are a lot of unused frames, |
2037 | * restock the Rx queue so ucode wont assert. */ | |
2038 | if (fill_rx) { | |
2039 | count++; | |
2040 | if (count >= 8) { | |
2041 | priv->rxq.read = i; | |
a55360e4 | 2042 | __iwl_rx_replenish(priv); |
5c0eef96 MA |
2043 | count = 0; |
2044 | } | |
2045 | } | |
b481de9c ZY |
2046 | } |
2047 | ||
2048 | /* Backtrack one entry */ | |
2049 | priv->rxq.read = i; | |
a55360e4 TW |
2050 | iwl_rx_queue_restock(priv); |
2051 | } | |
2052 | /* Convert linear signal-to-noise ratio into dB */ | |
2053 | static u8 ratio2dB[100] = { | |
2054 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
2055 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
2056 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
2057 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
2058 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
2059 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
2060 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
2061 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
2062 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
2063 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
2064 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
2065 | }; | |
2066 | ||
2067 | /* Calculates a relative dB value from a ratio of linear | |
2068 | * (i.e. not dB) signal levels. | |
2069 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
2070 | int iwl4965_calc_db_from_ratio(int sig_ratio) | |
2071 | { | |
2072 | /* 1000:1 or higher just report as 60 dB */ | |
2073 | if (sig_ratio >= 1000) | |
2074 | return 60; | |
2075 | ||
2076 | /* 100:1 or higher, divide by 10 and use table, | |
2077 | * add 20 dB to make up for divide by 10 */ | |
2078 | if (sig_ratio >= 100) | |
2079 | return (20 + (int)ratio2dB[sig_ratio/10]); | |
2080 | ||
2081 | /* We shouldn't see this */ | |
2082 | if (sig_ratio < 1) | |
2083 | return 0; | |
2084 | ||
2085 | /* Use table for ratios 1:1 - 99:1 */ | |
2086 | return (int)ratio2dB[sig_ratio]; | |
2087 | } | |
2088 | ||
2089 | #define PERFECT_RSSI (-20) /* dBm */ | |
2090 | #define WORST_RSSI (-95) /* dBm */ | |
2091 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
2092 | ||
2093 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
2094 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
2095 | * about formulas used below. */ | |
2096 | int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm) | |
2097 | { | |
2098 | int sig_qual; | |
2099 | int degradation = PERFECT_RSSI - rssi_dbm; | |
2100 | ||
2101 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
2102 | * as indicator; formula is (signal dbm - noise dbm). | |
2103 | * SNR at or above 40 is a great signal (100%). | |
2104 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
2105 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
2106 | if (noise_dbm) { | |
2107 | if (rssi_dbm - noise_dbm >= 40) | |
2108 | return 100; | |
2109 | else if (rssi_dbm < noise_dbm) | |
2110 | return 0; | |
2111 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
2112 | ||
2113 | /* Else use just the signal level. | |
2114 | * This formula is a least squares fit of data points collected and | |
2115 | * compared with a reference system that had a percentage (%) display | |
2116 | * for signal quality. */ | |
2117 | } else | |
2118 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
2119 | (15 * RSSI_RANGE + 62 * degradation)) / | |
2120 | (RSSI_RANGE * RSSI_RANGE); | |
2121 | ||
2122 | if (sig_qual > 100) | |
2123 | sig_qual = 100; | |
2124 | else if (sig_qual < 1) | |
2125 | sig_qual = 0; | |
2126 | ||
2127 | return sig_qual; | |
b481de9c ZY |
2128 | } |
2129 | ||
0a6857e7 | 2130 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2131 | static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv) |
b481de9c | 2132 | { |
c1adf9fb | 2133 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
0795af57 JP |
2134 | DECLARE_MAC_BUF(mac); |
2135 | ||
b481de9c | 2136 | IWL_DEBUG_RADIO("RX CONFIG:\n"); |
bf403db8 | 2137 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
b481de9c ZY |
2138 | IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
2139 | IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
2140 | IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n", | |
2141 | le32_to_cpu(rxon->filter_flags)); | |
2142 | IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); | |
2143 | IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n", | |
2144 | rxon->ofdm_basic_rates); | |
2145 | IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); | |
0795af57 JP |
2146 | IWL_DEBUG_RADIO("u8[6] node_addr: %s\n", |
2147 | print_mac(mac, rxon->node_addr)); | |
2148 | IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n", | |
2149 | print_mac(mac, rxon->bssid_addr)); | |
b481de9c ZY |
2150 | IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
2151 | } | |
2152 | #endif | |
2153 | ||
c79dd5b5 | 2154 | static void iwl4965_enable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
2155 | { |
2156 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
2157 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
3395f6e9 | 2158 | iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
b481de9c ZY |
2159 | } |
2160 | ||
0359facc MA |
2161 | /* call this function to flush any scheduled tasklet */ |
2162 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) | |
2163 | { | |
2164 | /* wait to make sure we flush pedding tasklet*/ | |
2165 | synchronize_irq(priv->pci_dev->irq); | |
2166 | tasklet_kill(&priv->irq_tasklet); | |
2167 | } | |
2168 | ||
c79dd5b5 | 2169 | static inline void iwl4965_disable_interrupts(struct iwl_priv *priv) |
b481de9c ZY |
2170 | { |
2171 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
2172 | ||
2173 | /* disable interrupts from uCode/NIC to host */ | |
3395f6e9 | 2174 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
b481de9c ZY |
2175 | |
2176 | /* acknowledge/clear/reset any interrupts still pending | |
2177 | * from uCode or flow handler (Rx/Tx DMA) */ | |
3395f6e9 TW |
2178 | iwl_write32(priv, CSR_INT, 0xffffffff); |
2179 | iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
b481de9c ZY |
2180 | IWL_DEBUG_ISR("Disabled interrupts\n"); |
2181 | } | |
2182 | ||
b481de9c | 2183 | |
b481de9c | 2184 | /** |
bb8c093b | 2185 | * iwl4965_irq_handle_error - called for HW or SW error interrupt from card |
b481de9c | 2186 | */ |
c79dd5b5 | 2187 | static void iwl4965_irq_handle_error(struct iwl_priv *priv) |
b481de9c | 2188 | { |
bb8c093b | 2189 | /* Set the FW error flag -- cleared on iwl4965_down */ |
b481de9c ZY |
2190 | set_bit(STATUS_FW_ERROR, &priv->status); |
2191 | ||
2192 | /* Cancel currently queued command. */ | |
2193 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
2194 | ||
0a6857e7 | 2195 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2196 | if (priv->debug_level & IWL_DL_FW_ERRORS) { |
ede0cba4 | 2197 | iwl_dump_nic_error_log(priv); |
189a2b59 | 2198 | iwl_dump_nic_event_log(priv); |
bf403db8 | 2199 | iwl4965_print_rx_config_cmd(priv); |
b481de9c ZY |
2200 | } |
2201 | #endif | |
2202 | ||
2203 | wake_up_interruptible(&priv->wait_command_queue); | |
2204 | ||
2205 | /* Keep the restart process from trying to send host | |
2206 | * commands by clearing the INIT status bit */ | |
2207 | clear_bit(STATUS_READY, &priv->status); | |
2208 | ||
2209 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
f3d67999 | 2210 | IWL_DEBUG(IWL_DL_FW_ERRORS, |
b481de9c ZY |
2211 | "Restarting adapter due to uCode error.\n"); |
2212 | ||
3109ece1 | 2213 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
2214 | memcpy(&priv->recovery_rxon, &priv->active_rxon, |
2215 | sizeof(priv->recovery_rxon)); | |
2216 | priv->error_recovering = 1; | |
2217 | } | |
3a1081e8 EK |
2218 | if (priv->cfg->mod_params->restart_fw) |
2219 | queue_work(priv->workqueue, &priv->restart); | |
b481de9c ZY |
2220 | } |
2221 | } | |
2222 | ||
c79dd5b5 | 2223 | static void iwl4965_error_recovery(struct iwl_priv *priv) |
b481de9c ZY |
2224 | { |
2225 | unsigned long flags; | |
2226 | ||
2227 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, | |
2228 | sizeof(priv->staging_rxon)); | |
2229 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 2230 | iwl4965_commit_rxon(priv); |
b481de9c | 2231 | |
4f40e4d9 | 2232 | iwl_rxon_add_station(priv, priv->bssid, 1); |
b481de9c ZY |
2233 | |
2234 | spin_lock_irqsave(&priv->lock, flags); | |
2235 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); | |
2236 | priv->error_recovering = 0; | |
2237 | spin_unlock_irqrestore(&priv->lock, flags); | |
2238 | } | |
2239 | ||
c79dd5b5 | 2240 | static void iwl4965_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
2241 | { |
2242 | u32 inta, handled = 0; | |
2243 | u32 inta_fh; | |
2244 | unsigned long flags; | |
0a6857e7 | 2245 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
2246 | u32 inta_mask; |
2247 | #endif | |
2248 | ||
2249 | spin_lock_irqsave(&priv->lock, flags); | |
2250 | ||
2251 | /* Ack/clear/reset pending uCode interrupts. | |
2252 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
2253 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
3395f6e9 TW |
2254 | inta = iwl_read32(priv, CSR_INT); |
2255 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
2256 | |
2257 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
2258 | * Any new interrupts that happen after this, either while we're | |
2259 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
3395f6e9 TW |
2260 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
2261 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 2262 | |
0a6857e7 | 2263 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2264 | if (priv->debug_level & IWL_DL_ISR) { |
9fbab516 | 2265 | /* just for debug */ |
3395f6e9 | 2266 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
b481de9c ZY |
2267 | IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
2268 | inta, inta_mask, inta_fh); | |
2269 | } | |
2270 | #endif | |
2271 | ||
2272 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
2273 | * atomic, make sure that inta covers all the interrupts that | |
2274 | * we've discovered, even if FH interrupt came in just after | |
2275 | * reading CSR_INT. */ | |
6f83eaa1 | 2276 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
b481de9c | 2277 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 2278 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
b481de9c ZY |
2279 | inta |= CSR_INT_BIT_FH_TX; |
2280 | ||
2281 | /* Now service all interrupt bits discovered above. */ | |
2282 | if (inta & CSR_INT_BIT_HW_ERR) { | |
2283 | IWL_ERROR("Microcode HW error detected. Restarting.\n"); | |
2284 | ||
2285 | /* Tell the device to stop sending interrupts */ | |
bb8c093b | 2286 | iwl4965_disable_interrupts(priv); |
b481de9c | 2287 | |
bb8c093b | 2288 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
2289 | |
2290 | handled |= CSR_INT_BIT_HW_ERR; | |
2291 | ||
2292 | spin_unlock_irqrestore(&priv->lock, flags); | |
2293 | ||
2294 | return; | |
2295 | } | |
2296 | ||
0a6857e7 | 2297 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2298 | if (priv->debug_level & (IWL_DL_ISR)) { |
b481de9c | 2299 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e JP |
2300 | if (inta & CSR_INT_BIT_SCD) |
2301 | IWL_DEBUG_ISR("Scheduler finished to transmit " | |
2302 | "the frame/frames.\n"); | |
b481de9c ZY |
2303 | |
2304 | /* Alive notification via Rx interrupt will do the real work */ | |
2305 | if (inta & CSR_INT_BIT_ALIVE) | |
2306 | IWL_DEBUG_ISR("Alive interrupt\n"); | |
2307 | } | |
2308 | #endif | |
2309 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 2310 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 2311 | |
9fbab516 | 2312 | /* HW RF KILL switch toggled */ |
b481de9c ZY |
2313 | if (inta & CSR_INT_BIT_RF_KILL) { |
2314 | int hw_rf_kill = 0; | |
3395f6e9 | 2315 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
2316 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
2317 | hw_rf_kill = 1; | |
2318 | ||
f3d67999 | 2319 | IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n", |
b481de9c ZY |
2320 | hw_rf_kill ? "disable radio":"enable radio"); |
2321 | ||
2322 | /* Queue restart only if RF_KILL switch was set to "kill" | |
2323 | * when we loaded driver, and is now set to "enable". | |
2324 | * After we're Alive, RF_KILL gets handled by | |
3230455d | 2325 | * iwl4965_rx_card_state_notif() */ |
53e49093 ZY |
2326 | if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) { |
2327 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
b481de9c | 2328 | queue_work(priv->workqueue, &priv->restart); |
53e49093 | 2329 | } |
b481de9c ZY |
2330 | |
2331 | handled |= CSR_INT_BIT_RF_KILL; | |
2332 | } | |
2333 | ||
9fbab516 | 2334 | /* Chip got too hot and stopped itself */ |
b481de9c ZY |
2335 | if (inta & CSR_INT_BIT_CT_KILL) { |
2336 | IWL_ERROR("Microcode CT kill error detected.\n"); | |
2337 | handled |= CSR_INT_BIT_CT_KILL; | |
2338 | } | |
2339 | ||
2340 | /* Error detected by uCode */ | |
2341 | if (inta & CSR_INT_BIT_SW_ERR) { | |
2342 | IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n", | |
2343 | inta); | |
bb8c093b | 2344 | iwl4965_irq_handle_error(priv); |
b481de9c ZY |
2345 | handled |= CSR_INT_BIT_SW_ERR; |
2346 | } | |
2347 | ||
2348 | /* uCode wakes up after power-down sleep */ | |
2349 | if (inta & CSR_INT_BIT_WAKEUP) { | |
2350 | IWL_DEBUG_ISR("Wakeup interrupt\n"); | |
a55360e4 | 2351 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
babcebfa TW |
2352 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
2353 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
2354 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
2355 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
2356 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
2357 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
2358 | |
2359 | handled |= CSR_INT_BIT_WAKEUP; | |
2360 | } | |
2361 | ||
2362 | /* All uCode command responses, including Tx command responses, | |
2363 | * Rx "responses" (frame-received notification), and other | |
2364 | * notifications from uCode come through here*/ | |
2365 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
a55360e4 | 2366 | iwl_rx_handle(priv); |
b481de9c ZY |
2367 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
2368 | } | |
2369 | ||
2370 | if (inta & CSR_INT_BIT_FH_TX) { | |
2371 | IWL_DEBUG_ISR("Tx interrupt\n"); | |
2372 | handled |= CSR_INT_BIT_FH_TX; | |
dbb983b7 RR |
2373 | /* FH finished to write, send event */ |
2374 | priv->ucode_write_complete = 1; | |
2375 | wake_up_interruptible(&priv->wait_command_queue); | |
b481de9c ZY |
2376 | } |
2377 | ||
2378 | if (inta & ~handled) | |
2379 | IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
2380 | ||
2381 | if (inta & ~CSR_INI_SET_MASK) { | |
2382 | IWL_WARNING("Disabled INTA bits 0x%08x were pending\n", | |
2383 | inta & ~CSR_INI_SET_MASK); | |
2384 | IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh); | |
2385 | } | |
2386 | ||
2387 | /* Re-enable all interrupts */ | |
0359facc MA |
2388 | /* only Re-enable if diabled by irq */ |
2389 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
2390 | iwl4965_enable_interrupts(priv); | |
b481de9c | 2391 | |
0a6857e7 | 2392 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 2393 | if (priv->debug_level & (IWL_DL_ISR)) { |
3395f6e9 TW |
2394 | inta = iwl_read32(priv, CSR_INT); |
2395 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
2396 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
2397 | IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
2398 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); | |
2399 | } | |
2400 | #endif | |
2401 | spin_unlock_irqrestore(&priv->lock, flags); | |
2402 | } | |
2403 | ||
bb8c093b | 2404 | static irqreturn_t iwl4965_isr(int irq, void *data) |
b481de9c | 2405 | { |
c79dd5b5 | 2406 | struct iwl_priv *priv = data; |
b481de9c ZY |
2407 | u32 inta, inta_mask; |
2408 | u32 inta_fh; | |
2409 | if (!priv) | |
2410 | return IRQ_NONE; | |
2411 | ||
2412 | spin_lock(&priv->lock); | |
2413 | ||
2414 | /* Disable (but don't clear!) interrupts here to avoid | |
2415 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
2416 | * If we have something to service, the tasklet will re-enable ints. | |
2417 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
3395f6e9 TW |
2418 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
2419 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
b481de9c ZY |
2420 | |
2421 | /* Discover which interrupts are active/pending */ | |
3395f6e9 TW |
2422 | inta = iwl_read32(priv, CSR_INT); |
2423 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
b481de9c ZY |
2424 | |
2425 | /* Ignore interrupt if there's nothing in NIC to service. | |
2426 | * This may be due to IRQ shared with another device, | |
2427 | * or due to sporadic interrupts thrown from our NIC. */ | |
2428 | if (!inta && !inta_fh) { | |
2429 | IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
2430 | goto none; | |
2431 | } | |
2432 | ||
2433 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
66fbb541 ON |
2434 | /* Hardware disappeared. It might have already raised |
2435 | * an interrupt */ | |
b481de9c | 2436 | IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta); |
66fbb541 | 2437 | goto unplugged; |
b481de9c ZY |
2438 | } |
2439 | ||
2440 | IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
2441 | inta, inta_mask, inta_fh); | |
2442 | ||
25c03d8e JP |
2443 | inta &= ~CSR_INT_BIT_SCD; |
2444 | ||
bb8c093b | 2445 | /* iwl4965_irq_tasklet() will service interrupts and re-enable them */ |
25c03d8e JP |
2446 | if (likely(inta || inta_fh)) |
2447 | tasklet_schedule(&priv->irq_tasklet); | |
b481de9c | 2448 | |
66fbb541 ON |
2449 | unplugged: |
2450 | spin_unlock(&priv->lock); | |
b481de9c ZY |
2451 | return IRQ_HANDLED; |
2452 | ||
2453 | none: | |
2454 | /* re-enable interrupts here since we don't have anything to service. */ | |
0359facc MA |
2455 | /* only Re-enable if diabled by irq */ |
2456 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
2457 | iwl4965_enable_interrupts(priv); | |
b481de9c ZY |
2458 | spin_unlock(&priv->lock); |
2459 | return IRQ_NONE; | |
2460 | } | |
2461 | ||
b481de9c ZY |
2462 | /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after |
2463 | * sending probe req. This should be set long enough to hear probe responses | |
2464 | * from more than one AP. */ | |
2465 | #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
2466 | #define IWL_ACTIVE_DWELL_TIME_52 (10) | |
2467 | ||
2468 | /* For faster active scanning, scan will move to the next channel if fewer than | |
2469 | * PLCP_QUIET_THRESH packets are heard on this channel within | |
2470 | * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell | |
2471 | * time if it's a quiet channel (nothing responded to our probe, and there's | |
2472 | * no other traffic). | |
2473 | * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ | |
2474 | #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ | |
2475 | #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */ | |
2476 | ||
2477 | /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. | |
2478 | * Must be set longer than active dwell time. | |
2479 | * For the most reliable scan, set > AP beacon interval (typically 100msec). */ | |
2480 | #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ | |
2481 | #define IWL_PASSIVE_DWELL_TIME_52 (10) | |
2482 | #define IWL_PASSIVE_DWELL_BASE (100) | |
2483 | #define IWL_CHANNEL_TUNE_TIME 5 | |
2484 | ||
c79dd5b5 | 2485 | static inline u16 iwl4965_get_active_dwell_time(struct iwl_priv *priv, |
8318d78a | 2486 | enum ieee80211_band band) |
b481de9c | 2487 | { |
8318d78a | 2488 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
2489 | return IWL_ACTIVE_DWELL_TIME_52; |
2490 | else | |
2491 | return IWL_ACTIVE_DWELL_TIME_24; | |
2492 | } | |
2493 | ||
c79dd5b5 | 2494 | static u16 iwl4965_get_passive_dwell_time(struct iwl_priv *priv, |
8318d78a | 2495 | enum ieee80211_band band) |
b481de9c | 2496 | { |
8318d78a JB |
2497 | u16 active = iwl4965_get_active_dwell_time(priv, band); |
2498 | u16 passive = (band != IEEE80211_BAND_5GHZ) ? | |
b481de9c ZY |
2499 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : |
2500 | IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; | |
2501 | ||
3109ece1 | 2502 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
2503 | /* If we're associated, we clamp the maximum passive |
2504 | * dwell time to be 98% of the beacon interval (minus | |
2505 | * 2 * channel tune time) */ | |
2506 | passive = priv->beacon_int; | |
2507 | if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) | |
2508 | passive = IWL_PASSIVE_DWELL_BASE; | |
2509 | passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; | |
2510 | } | |
2511 | ||
2512 | if (passive <= active) | |
2513 | passive = active + 1; | |
2514 | ||
2515 | return passive; | |
2516 | } | |
2517 | ||
c79dd5b5 | 2518 | static int iwl4965_get_channels_for_scan(struct iwl_priv *priv, |
8318d78a | 2519 | enum ieee80211_band band, |
b481de9c | 2520 | u8 is_active, u8 direct_mask, |
bb8c093b | 2521 | struct iwl4965_scan_channel *scan_ch) |
b481de9c ZY |
2522 | { |
2523 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 2524 | const struct ieee80211_supported_band *sband; |
bf85ea4f | 2525 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
2526 | u16 passive_dwell = 0; |
2527 | u16 active_dwell = 0; | |
2528 | int added, i; | |
2529 | ||
d1141dfb | 2530 | sband = iwl_get_hw_mode(priv, band); |
8318d78a | 2531 | if (!sband) |
b481de9c ZY |
2532 | return 0; |
2533 | ||
8318d78a | 2534 | channels = sband->channels; |
b481de9c | 2535 | |
8318d78a JB |
2536 | active_dwell = iwl4965_get_active_dwell_time(priv, band); |
2537 | passive_dwell = iwl4965_get_passive_dwell_time(priv, band); | |
b481de9c | 2538 | |
8318d78a | 2539 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
2540 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
2541 | continue; | |
2542 | ||
8318d78a | 2543 | scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq); |
b481de9c | 2544 | |
8622e705 | 2545 | ch_info = iwl_get_channel_info(priv, band, |
9fbab516 | 2546 | scan_ch->channel); |
b481de9c ZY |
2547 | if (!is_channel_valid(ch_info)) { |
2548 | IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n", | |
2549 | scan_ch->channel); | |
2550 | continue; | |
2551 | } | |
2552 | ||
2553 | if (!is_active || is_channel_passive(ch_info) || | |
8318d78a | 2554 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) |
b481de9c ZY |
2555 | scan_ch->type = 0; /* passive */ |
2556 | else | |
2557 | scan_ch->type = 1; /* active */ | |
2558 | ||
2559 | if (scan_ch->type & 1) | |
2560 | scan_ch->type |= (direct_mask << 1); | |
2561 | ||
b481de9c ZY |
2562 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
2563 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
2564 | ||
9fbab516 | 2565 | /* Set txpower levels to defaults */ |
b481de9c ZY |
2566 | scan_ch->tpc.dsp_atten = 110; |
2567 | /* scan_pwr_info->tpc.dsp_atten; */ | |
2568 | ||
2569 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 2570 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
2571 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
2572 | else { | |
2573 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
2574 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 2575 | * power level: |
8a1b0245 | 2576 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
2577 | */ |
2578 | } | |
2579 | ||
2580 | IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", | |
2581 | scan_ch->channel, | |
2582 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
2583 | (scan_ch->type & 1) ? | |
2584 | active_dwell : passive_dwell); | |
2585 | ||
2586 | scan_ch++; | |
2587 | added++; | |
2588 | } | |
2589 | ||
2590 | IWL_DEBUG_SCAN("total channels to scan %d \n", added); | |
2591 | return added; | |
2592 | } | |
2593 | ||
b481de9c ZY |
2594 | /****************************************************************************** |
2595 | * | |
2596 | * uCode download functions | |
2597 | * | |
2598 | ******************************************************************************/ | |
2599 | ||
c79dd5b5 | 2600 | static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 2601 | { |
98c92211 TW |
2602 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
2603 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
2604 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
2605 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
2606 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
2607 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
2608 | } |
2609 | ||
edcdf8b2 RR |
2610 | static void iwl4965_nic_start(struct iwl_priv *priv) |
2611 | { | |
2612 | /* Remove all resets to allow NIC to operate */ | |
2613 | iwl_write32(priv, CSR_RESET, 0); | |
2614 | } | |
2615 | ||
2616 | ||
b481de9c | 2617 | /** |
bb8c093b | 2618 | * iwl4965_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
2619 | * |
2620 | * Copy into buffers for card to fetch via bus-mastering | |
2621 | */ | |
c79dd5b5 | 2622 | static int iwl4965_read_ucode(struct iwl_priv *priv) |
b481de9c | 2623 | { |
bb8c093b | 2624 | struct iwl4965_ucode *ucode; |
90e759d1 | 2625 | int ret; |
b481de9c | 2626 | const struct firmware *ucode_raw; |
4bf775cd | 2627 | const char *name = priv->cfg->fw_name; |
b481de9c ZY |
2628 | u8 *src; |
2629 | size_t len; | |
2630 | u32 ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
2631 | ||
2632 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
2633 | * request_firmware() is synchronous, file is in memory on return. */ | |
90e759d1 TW |
2634 | ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev); |
2635 | if (ret < 0) { | |
2636 | IWL_ERROR("%s firmware file req failed: Reason %d\n", | |
2637 | name, ret); | |
b481de9c ZY |
2638 | goto error; |
2639 | } | |
2640 | ||
2641 | IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n", | |
2642 | name, ucode_raw->size); | |
2643 | ||
2644 | /* Make sure that we got at least our header! */ | |
2645 | if (ucode_raw->size < sizeof(*ucode)) { | |
2646 | IWL_ERROR("File size way too small!\n"); | |
90e759d1 | 2647 | ret = -EINVAL; |
b481de9c ZY |
2648 | goto err_release; |
2649 | } | |
2650 | ||
2651 | /* Data from ucode file: header followed by uCode images */ | |
2652 | ucode = (void *)ucode_raw->data; | |
2653 | ||
2654 | ver = le32_to_cpu(ucode->ver); | |
2655 | inst_size = le32_to_cpu(ucode->inst_size); | |
2656 | data_size = le32_to_cpu(ucode->data_size); | |
2657 | init_size = le32_to_cpu(ucode->init_size); | |
2658 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
2659 | boot_size = le32_to_cpu(ucode->boot_size); | |
2660 | ||
2661 | IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver); | |
2662 | IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", | |
2663 | inst_size); | |
2664 | IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", | |
2665 | data_size); | |
2666 | IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", | |
2667 | init_size); | |
2668 | IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", | |
2669 | init_data_size); | |
2670 | IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", | |
2671 | boot_size); | |
2672 | ||
2673 | /* Verify size of file vs. image size info in file's header */ | |
2674 | if (ucode_raw->size < sizeof(*ucode) + | |
2675 | inst_size + data_size + init_size + | |
2676 | init_data_size + boot_size) { | |
2677 | ||
2678 | IWL_DEBUG_INFO("uCode file size %d too small\n", | |
2679 | (int)ucode_raw->size); | |
90e759d1 | 2680 | ret = -EINVAL; |
b481de9c ZY |
2681 | goto err_release; |
2682 | } | |
2683 | ||
2684 | /* Verify that uCode images will fit in card's SRAM */ | |
099b40b7 | 2685 | if (inst_size > priv->hw_params.max_inst_size) { |
90e759d1 TW |
2686 | IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n", |
2687 | inst_size); | |
2688 | ret = -EINVAL; | |
b481de9c ZY |
2689 | goto err_release; |
2690 | } | |
2691 | ||
099b40b7 | 2692 | if (data_size > priv->hw_params.max_data_size) { |
90e759d1 TW |
2693 | IWL_DEBUG_INFO("uCode data len %d too large to fit in\n", |
2694 | data_size); | |
2695 | ret = -EINVAL; | |
b481de9c ZY |
2696 | goto err_release; |
2697 | } | |
099b40b7 | 2698 | if (init_size > priv->hw_params.max_inst_size) { |
b481de9c | 2699 | IWL_DEBUG_INFO |
90e759d1 TW |
2700 | ("uCode init instr len %d too large to fit in\n", |
2701 | init_size); | |
2702 | ret = -EINVAL; | |
b481de9c ZY |
2703 | goto err_release; |
2704 | } | |
099b40b7 | 2705 | if (init_data_size > priv->hw_params.max_data_size) { |
b481de9c | 2706 | IWL_DEBUG_INFO |
90e759d1 TW |
2707 | ("uCode init data len %d too large to fit in\n", |
2708 | init_data_size); | |
2709 | ret = -EINVAL; | |
b481de9c ZY |
2710 | goto err_release; |
2711 | } | |
099b40b7 | 2712 | if (boot_size > priv->hw_params.max_bsm_size) { |
b481de9c | 2713 | IWL_DEBUG_INFO |
90e759d1 TW |
2714 | ("uCode boot instr len %d too large to fit in\n", |
2715 | boot_size); | |
2716 | ret = -EINVAL; | |
b481de9c ZY |
2717 | goto err_release; |
2718 | } | |
2719 | ||
2720 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
2721 | ||
2722 | /* Runtime instructions and 2 copies of data: | |
2723 | * 1) unmodified from disk | |
2724 | * 2) backup cache for save/restore during power-downs */ | |
2725 | priv->ucode_code.len = inst_size; | |
98c92211 | 2726 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
2727 | |
2728 | priv->ucode_data.len = data_size; | |
98c92211 | 2729 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
2730 | |
2731 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 2732 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c ZY |
2733 | |
2734 | /* Initialization instructions and data */ | |
90e759d1 TW |
2735 | if (init_size && init_data_size) { |
2736 | priv->ucode_init.len = init_size; | |
98c92211 | 2737 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
2738 | |
2739 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 2740 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
2741 | |
2742 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
2743 | goto err_pci_alloc; | |
2744 | } | |
b481de9c ZY |
2745 | |
2746 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
2747 | if (boot_size) { |
2748 | priv->ucode_boot.len = boot_size; | |
98c92211 | 2749 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 2750 | |
90e759d1 TW |
2751 | if (!priv->ucode_boot.v_addr) |
2752 | goto err_pci_alloc; | |
2753 | } | |
b481de9c ZY |
2754 | |
2755 | /* Copy images into buffers for card's bus-master reads ... */ | |
2756 | ||
2757 | /* Runtime instructions (first block of data in file) */ | |
2758 | src = &ucode->data[0]; | |
2759 | len = priv->ucode_code.len; | |
90e759d1 | 2760 | IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c ZY |
2761 | memcpy(priv->ucode_code.v_addr, src, len); |
2762 | IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", | |
2763 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); | |
2764 | ||
2765 | /* Runtime data (2nd block) | |
bb8c093b | 2766 | * NOTE: Copy into backup buffer will be done in iwl4965_up() */ |
b481de9c ZY |
2767 | src = &ucode->data[inst_size]; |
2768 | len = priv->ucode_data.len; | |
90e759d1 | 2769 | IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
2770 | memcpy(priv->ucode_data.v_addr, src, len); |
2771 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
2772 | ||
2773 | /* Initialization instructions (3rd block) */ | |
2774 | if (init_size) { | |
2775 | src = &ucode->data[inst_size + data_size]; | |
2776 | len = priv->ucode_init.len; | |
90e759d1 TW |
2777 | IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n", |
2778 | len); | |
b481de9c ZY |
2779 | memcpy(priv->ucode_init.v_addr, src, len); |
2780 | } | |
2781 | ||
2782 | /* Initialization data (4th block) */ | |
2783 | if (init_data_size) { | |
2784 | src = &ucode->data[inst_size + data_size + init_size]; | |
2785 | len = priv->ucode_init_data.len; | |
90e759d1 TW |
2786 | IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n", |
2787 | len); | |
b481de9c ZY |
2788 | memcpy(priv->ucode_init_data.v_addr, src, len); |
2789 | } | |
2790 | ||
2791 | /* Bootstrap instructions (5th block) */ | |
2792 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
2793 | len = priv->ucode_boot.len; | |
90e759d1 | 2794 | IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len); |
b481de9c ZY |
2795 | memcpy(priv->ucode_boot.v_addr, src, len); |
2796 | ||
2797 | /* We have our copies now, allow OS release its copies */ | |
2798 | release_firmware(ucode_raw); | |
2799 | return 0; | |
2800 | ||
2801 | err_pci_alloc: | |
2802 | IWL_ERROR("failed to allocate pci memory\n"); | |
90e759d1 | 2803 | ret = -ENOMEM; |
bb8c093b | 2804 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
2805 | |
2806 | err_release: | |
2807 | release_firmware(ucode_raw); | |
2808 | ||
2809 | error: | |
90e759d1 | 2810 | return ret; |
b481de9c ZY |
2811 | } |
2812 | ||
b481de9c | 2813 | /** |
4a4a9e81 | 2814 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 2815 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 2816 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 2817 | */ |
4a4a9e81 | 2818 | static void iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 2819 | { |
57aab75a | 2820 | int ret = 0; |
b481de9c ZY |
2821 | |
2822 | IWL_DEBUG_INFO("Runtime Alive received.\n"); | |
2823 | ||
2824 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
2825 | /* We had an error bringing up the hardware, so take it | |
2826 | * all the way back down so we can try again */ | |
2827 | IWL_DEBUG_INFO("Alive failed.\n"); | |
2828 | goto restart; | |
2829 | } | |
2830 | ||
2831 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
2832 | * This is a paranoid check, because we would not have gotten the | |
2833 | * "runtime" alive if code weren't properly loaded. */ | |
b0692f2f | 2834 | if (iwl_verify_ucode(priv)) { |
b481de9c ZY |
2835 | /* Runtime instruction load was bad; |
2836 | * take it all the way back down so we can try again */ | |
2837 | IWL_DEBUG_INFO("Bad runtime uCode load.\n"); | |
2838 | goto restart; | |
2839 | } | |
2840 | ||
bf85ea4f | 2841 | iwlcore_clear_stations_table(priv); |
57aab75a TW |
2842 | ret = priv->cfg->ops->lib->alive_notify(priv); |
2843 | if (ret) { | |
b481de9c | 2844 | IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n", |
57aab75a | 2845 | ret); |
b481de9c ZY |
2846 | goto restart; |
2847 | } | |
2848 | ||
9fbab516 | 2849 | /* After the ALIVE response, we can send host commands to 4965 uCode */ |
b481de9c ZY |
2850 | set_bit(STATUS_ALIVE, &priv->status); |
2851 | ||
2852 | /* Clear out the uCode error bit if it is set */ | |
2853 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
2854 | ||
fee1247a | 2855 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
2856 | return; |
2857 | ||
36d6825b | 2858 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
2859 | |
2860 | priv->active_rate = priv->rates_mask; | |
2861 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
2862 | ||
3109ece1 | 2863 | if (iwl_is_associated(priv)) { |
c1adf9fb GG |
2864 | struct iwl_rxon_cmd *active_rxon = |
2865 | (struct iwl_rxon_cmd *)&priv->active_rxon; | |
b481de9c ZY |
2866 | |
2867 | memcpy(&priv->staging_rxon, &priv->active_rxon, | |
2868 | sizeof(priv->staging_rxon)); | |
2869 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
2870 | } else { | |
2871 | /* Initialize our rx_config data */ | |
bb8c093b | 2872 | iwl4965_connection_init_rx_config(priv); |
b481de9c ZY |
2873 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2874 | } | |
2875 | ||
9fbab516 | 2876 | /* Configure Bluetooth device coexistence support */ |
bb8c093b | 2877 | iwl4965_send_bt_config(priv); |
b481de9c | 2878 | |
4a4a9e81 TW |
2879 | iwl_reset_run_time_calib(priv); |
2880 | ||
b481de9c | 2881 | /* Configure the adapter for unassociated operation */ |
bb8c093b | 2882 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
2883 | |
2884 | /* At this point, the NIC is initialized and operational */ | |
b481de9c | 2885 | iwl4965_rf_kill_ct_config(priv); |
5a66926a | 2886 | |
fe00b5a5 RC |
2887 | iwl_leds_register(priv); |
2888 | ||
b481de9c | 2889 | IWL_DEBUG_INFO("ALIVE processing complete.\n"); |
a9f46786 | 2890 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 2891 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
2892 | |
2893 | if (priv->error_recovering) | |
bb8c093b | 2894 | iwl4965_error_recovery(priv); |
b481de9c | 2895 | |
c8381fdc | 2896 | iwlcore_low_level_notify(priv, IWLCORE_START_EVT); |
84363e6e | 2897 | ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); |
b481de9c ZY |
2898 | return; |
2899 | ||
2900 | restart: | |
2901 | queue_work(priv->workqueue, &priv->restart); | |
2902 | } | |
2903 | ||
c79dd5b5 | 2904 | static void iwl4965_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 2905 | |
c79dd5b5 | 2906 | static void __iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
2907 | { |
2908 | unsigned long flags; | |
2909 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c ZY |
2910 | |
2911 | IWL_DEBUG_INFO(DRV_NAME " is going down\n"); | |
2912 | ||
b481de9c ZY |
2913 | if (!exit_pending) |
2914 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
2915 | ||
ab53d8af MA |
2916 | iwl_leds_unregister(priv); |
2917 | ||
c8381fdc MA |
2918 | iwlcore_low_level_notify(priv, IWLCORE_STOP_EVT); |
2919 | ||
bf85ea4f | 2920 | iwlcore_clear_stations_table(priv); |
b481de9c ZY |
2921 | |
2922 | /* Unblock any waiting calls */ | |
2923 | wake_up_interruptible_all(&priv->wait_command_queue); | |
2924 | ||
b481de9c ZY |
2925 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
2926 | * exiting the module */ | |
2927 | if (!exit_pending) | |
2928 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
2929 | ||
2930 | /* stop and reset the on-board processor */ | |
3395f6e9 | 2931 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
2932 | |
2933 | /* tell the device to stop sending interrupts */ | |
0359facc | 2934 | spin_lock_irqsave(&priv->lock, flags); |
bb8c093b | 2935 | iwl4965_disable_interrupts(priv); |
0359facc MA |
2936 | spin_unlock_irqrestore(&priv->lock, flags); |
2937 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
2938 | |
2939 | if (priv->mac80211_registered) | |
2940 | ieee80211_stop_queues(priv->hw); | |
2941 | ||
bb8c093b | 2942 | /* If we have not previously called iwl4965_init() then |
b481de9c | 2943 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
fee1247a | 2944 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
2945 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2946 | STATUS_RF_KILL_HW | | |
2947 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
2948 | STATUS_RF_KILL_SW | | |
9788864e RC |
2949 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2950 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
2951 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
2952 | STATUS_IN_SUSPEND; | |
2953 | goto exit; | |
2954 | } | |
2955 | ||
2956 | /* ...otherwise clear out all the status bits but the RF Kill and | |
2957 | * SUSPEND bits and continue taking the NIC down. */ | |
2958 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
2959 | STATUS_RF_KILL_HW | | |
2960 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
2961 | STATUS_RF_KILL_SW | | |
9788864e RC |
2962 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2963 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
2964 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
2965 | STATUS_IN_SUSPEND | | |
2966 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
2967 | STATUS_FW_ERROR; | |
2968 | ||
2969 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 2970 | iwl_clear_bit(priv, CSR_GP_CNTRL, |
9fbab516 | 2971 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
2972 | spin_unlock_irqrestore(&priv->lock, flags); |
2973 | ||
da1bc453 | 2974 | iwl_txq_ctx_stop(priv); |
b3bbacb7 | 2975 | iwl_rxq_stop(priv); |
b481de9c ZY |
2976 | |
2977 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 TW |
2978 | if (!iwl_grab_nic_access(priv)) { |
2979 | iwl_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 2980 | APMG_CLK_VAL_DMA_CLK_RQT); |
3395f6e9 | 2981 | iwl_release_nic_access(priv); |
b481de9c ZY |
2982 | } |
2983 | spin_unlock_irqrestore(&priv->lock, flags); | |
2984 | ||
2985 | udelay(5); | |
2986 | ||
7f066108 TW |
2987 | /* FIXME: apm_ops.suspend(priv) */ |
2988 | priv->cfg->ops->lib->apm_ops.reset(priv); | |
399f4900 | 2989 | priv->cfg->ops->lib->free_shared_mem(priv); |
b481de9c ZY |
2990 | |
2991 | exit: | |
885ba202 | 2992 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
2993 | |
2994 | if (priv->ibss_beacon) | |
2995 | dev_kfree_skb(priv->ibss_beacon); | |
2996 | priv->ibss_beacon = NULL; | |
2997 | ||
2998 | /* clear out any free frames */ | |
fcab423d | 2999 | iwl_clear_free_frames(priv); |
b481de9c ZY |
3000 | } |
3001 | ||
c79dd5b5 | 3002 | static void iwl4965_down(struct iwl_priv *priv) |
b481de9c ZY |
3003 | { |
3004 | mutex_lock(&priv->mutex); | |
bb8c093b | 3005 | __iwl4965_down(priv); |
b481de9c | 3006 | mutex_unlock(&priv->mutex); |
b24d22b1 | 3007 | |
bb8c093b | 3008 | iwl4965_cancel_deferred_work(priv); |
b481de9c ZY |
3009 | } |
3010 | ||
3011 | #define MAX_HW_RESTARTS 5 | |
3012 | ||
c79dd5b5 | 3013 | static int __iwl4965_up(struct iwl_priv *priv) |
b481de9c | 3014 | { |
57aab75a TW |
3015 | int i; |
3016 | int ret; | |
b481de9c ZY |
3017 | |
3018 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
3019 | IWL_WARNING("Exit pending; will not bring the NIC up\n"); | |
3020 | return -EIO; | |
3021 | } | |
3022 | ||
3023 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
3024 | IWL_WARNING("Radio disabled by SW RF kill (module " | |
3025 | "parameter)\n"); | |
ad97edd2 | 3026 | iwl_rfkill_set_hw_state(priv); |
e655b9f0 ZY |
3027 | return -ENODEV; |
3028 | } | |
3029 | ||
e903fbd4 RC |
3030 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
3031 | IWL_ERROR("ucode not available for device bringup\n"); | |
3032 | return -EIO; | |
3033 | } | |
3034 | ||
e655b9f0 | 3035 | /* If platform's RF_KILL switch is NOT set to KILL */ |
3395f6e9 | 3036 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
e655b9f0 ZY |
3037 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
3038 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3039 | else { | |
3040 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3041 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
ad97edd2 | 3042 | iwl_rfkill_set_hw_state(priv); |
e655b9f0 ZY |
3043 | IWL_WARNING("Radio disabled by HW RF Kill switch\n"); |
3044 | return -ENODEV; | |
3045 | } | |
b481de9c ZY |
3046 | } |
3047 | ||
ad97edd2 | 3048 | iwl_rfkill_set_hw_state(priv); |
3395f6e9 | 3049 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 3050 | |
399f4900 RR |
3051 | ret = priv->cfg->ops->lib->alloc_shared_mem(priv); |
3052 | if (ret) { | |
3053 | IWL_ERROR("Unable to allocate shared memory\n"); | |
3054 | return ret; | |
3055 | } | |
3056 | ||
1053d35f | 3057 | ret = iwl_hw_nic_init(priv); |
57aab75a TW |
3058 | if (ret) { |
3059 | IWL_ERROR("Unable to init nic\n"); | |
3060 | return ret; | |
b481de9c ZY |
3061 | } |
3062 | ||
3063 | /* make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
3064 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3065 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
3066 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3067 | ||
3068 | /* clear (again), then enable host interrupts */ | |
3395f6e9 | 3069 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
bb8c093b | 3070 | iwl4965_enable_interrupts(priv); |
b481de9c ZY |
3071 | |
3072 | /* really make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
3073 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3074 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
3075 | |
3076 | /* Copy original ucode data image from disk into backup cache. | |
3077 | * This will be used to initialize the on-board processor's | |
3078 | * data SRAM for a clean start when the runtime program first loads. */ | |
3079 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 3080 | priv->ucode_data.len); |
b481de9c | 3081 | |
e655b9f0 ZY |
3082 | /* We return success when we resume from suspend and rf_kill is on. */ |
3083 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
b481de9c | 3084 | return 0; |
b481de9c ZY |
3085 | |
3086 | for (i = 0; i < MAX_HW_RESTARTS; i++) { | |
3087 | ||
bf85ea4f | 3088 | iwlcore_clear_stations_table(priv); |
b481de9c ZY |
3089 | |
3090 | /* load bootstrap state machine, | |
3091 | * load bootstrap program into processor's memory, | |
3092 | * prepare to load the "initialize" uCode */ | |
57aab75a | 3093 | ret = priv->cfg->ops->lib->load_ucode(priv); |
b481de9c | 3094 | |
57aab75a TW |
3095 | if (ret) { |
3096 | IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret); | |
b481de9c ZY |
3097 | continue; |
3098 | } | |
3099 | ||
3100 | /* start card; "initialize" will load runtime ucode */ | |
edcdf8b2 | 3101 | iwl4965_nic_start(priv); |
b481de9c | 3102 | |
b481de9c ZY |
3103 | IWL_DEBUG_INFO(DRV_NAME " is coming up\n"); |
3104 | ||
3105 | return 0; | |
3106 | } | |
3107 | ||
3108 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 3109 | __iwl4965_down(priv); |
b481de9c ZY |
3110 | |
3111 | /* tried to restart and config the device for as long as our | |
3112 | * patience could withstand */ | |
3113 | IWL_ERROR("Unable to initialize device after %d attempts.\n", i); | |
3114 | return -EIO; | |
3115 | } | |
3116 | ||
3117 | ||
3118 | /***************************************************************************** | |
3119 | * | |
3120 | * Workqueue callbacks | |
3121 | * | |
3122 | *****************************************************************************/ | |
3123 | ||
4a4a9e81 | 3124 | static void iwl_bg_init_alive_start(struct work_struct *data) |
b481de9c | 3125 | { |
c79dd5b5 TW |
3126 | struct iwl_priv *priv = |
3127 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
3128 | |
3129 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3130 | return; | |
3131 | ||
3132 | mutex_lock(&priv->mutex); | |
f3ccc08c | 3133 | priv->cfg->ops->lib->init_alive_start(priv); |
b481de9c ZY |
3134 | mutex_unlock(&priv->mutex); |
3135 | } | |
3136 | ||
4a4a9e81 | 3137 | static void iwl_bg_alive_start(struct work_struct *data) |
b481de9c | 3138 | { |
c79dd5b5 TW |
3139 | struct iwl_priv *priv = |
3140 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
3141 | |
3142 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3143 | return; | |
3144 | ||
3145 | mutex_lock(&priv->mutex); | |
4a4a9e81 | 3146 | iwl_alive_start(priv); |
b481de9c ZY |
3147 | mutex_unlock(&priv->mutex); |
3148 | } | |
3149 | ||
bb8c093b | 3150 | static void iwl4965_bg_rf_kill(struct work_struct *work) |
b481de9c | 3151 | { |
c79dd5b5 | 3152 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); |
b481de9c ZY |
3153 | |
3154 | wake_up_interruptible(&priv->wait_command_queue); | |
3155 | ||
3156 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3157 | return; | |
3158 | ||
3159 | mutex_lock(&priv->mutex); | |
3160 | ||
fee1247a | 3161 | if (!iwl_is_rfkill(priv)) { |
f3d67999 | 3162 | IWL_DEBUG(IWL_DL_RF_KILL, |
b481de9c ZY |
3163 | "HW and/or SW RF Kill no longer active, restarting " |
3164 | "device\n"); | |
3165 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3166 | queue_work(priv->workqueue, &priv->restart); | |
3167 | } else { | |
ad97edd2 MA |
3168 | /* make sure mac80211 stop sending Tx frame */ |
3169 | if (priv->mac80211_registered) | |
3170 | ieee80211_stop_queues(priv->hw); | |
b481de9c ZY |
3171 | |
3172 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
3173 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
3174 | "disabled by SW switch\n"); | |
3175 | else | |
3176 | IWL_WARNING("Radio Frequency Kill Switch is On:\n" | |
3177 | "Kill switch must be turned off for " | |
3178 | "wireless networking to work.\n"); | |
3179 | } | |
ad97edd2 MA |
3180 | iwl_rfkill_set_hw_state(priv); |
3181 | ||
b481de9c ZY |
3182 | mutex_unlock(&priv->mutex); |
3183 | } | |
3184 | ||
4419e39b AK |
3185 | static void iwl4965_bg_set_monitor(struct work_struct *work) |
3186 | { | |
3187 | struct iwl_priv *priv = container_of(work, | |
3188 | struct iwl_priv, set_monitor); | |
3189 | ||
3190 | IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n"); | |
3191 | ||
3192 | mutex_lock(&priv->mutex); | |
3193 | ||
3194 | if (!iwl_is_ready(priv)) | |
3195 | IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); | |
3196 | else | |
3197 | if (iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0) | |
3198 | IWL_ERROR("iwl4965_set_mode() failed\n"); | |
3199 | ||
3200 | mutex_unlock(&priv->mutex); | |
3201 | } | |
3202 | ||
b481de9c ZY |
3203 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
3204 | ||
bb8c093b | 3205 | static void iwl4965_bg_scan_check(struct work_struct *data) |
b481de9c | 3206 | { |
c79dd5b5 TW |
3207 | struct iwl_priv *priv = |
3208 | container_of(data, struct iwl_priv, scan_check.work); | |
b481de9c ZY |
3209 | |
3210 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3211 | return; | |
3212 | ||
3213 | mutex_lock(&priv->mutex); | |
3214 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
3215 | test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
f3d67999 EK |
3216 | IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting " |
3217 | "adapter (%dms)\n", | |
3218 | jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); | |
052c4b9f | 3219 | |
b481de9c | 3220 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) |
bb8c093b | 3221 | iwl4965_send_scan_abort(priv); |
b481de9c ZY |
3222 | } |
3223 | mutex_unlock(&priv->mutex); | |
3224 | } | |
3225 | ||
bb8c093b | 3226 | static void iwl4965_bg_request_scan(struct work_struct *data) |
b481de9c | 3227 | { |
c79dd5b5 TW |
3228 | struct iwl_priv *priv = |
3229 | container_of(data, struct iwl_priv, request_scan); | |
857485c0 | 3230 | struct iwl_host_cmd cmd = { |
b481de9c | 3231 | .id = REPLY_SCAN_CMD, |
bb8c093b | 3232 | .len = sizeof(struct iwl4965_scan_cmd), |
b481de9c ZY |
3233 | .meta.flags = CMD_SIZE_HUGE, |
3234 | }; | |
bb8c093b | 3235 | struct iwl4965_scan_cmd *scan; |
b481de9c | 3236 | struct ieee80211_conf *conf = NULL; |
78330fdd | 3237 | u16 cmd_len; |
8318d78a | 3238 | enum ieee80211_band band; |
78330fdd | 3239 | u8 direct_mask; |
857485c0 | 3240 | int ret = 0; |
b481de9c ZY |
3241 | |
3242 | conf = ieee80211_get_hw_conf(priv->hw); | |
3243 | ||
3244 | mutex_lock(&priv->mutex); | |
3245 | ||
fee1247a | 3246 | if (!iwl_is_ready(priv)) { |
b481de9c ZY |
3247 | IWL_WARNING("request scan called when driver not ready.\n"); |
3248 | goto done; | |
3249 | } | |
3250 | ||
3251 | /* Make sure the scan wasn't cancelled before this queued work | |
3252 | * was given the chance to run... */ | |
3253 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
3254 | goto done; | |
3255 | ||
3256 | /* This should never be called or scheduled if there is currently | |
3257 | * a scan active in the hardware. */ | |
3258 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
3259 | IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " | |
3260 | "Ignoring second request.\n"); | |
857485c0 | 3261 | ret = -EIO; |
b481de9c ZY |
3262 | goto done; |
3263 | } | |
3264 | ||
3265 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
3266 | IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); | |
3267 | goto done; | |
3268 | } | |
3269 | ||
3270 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
3271 | IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); | |
3272 | goto done; | |
3273 | } | |
3274 | ||
fee1247a | 3275 | if (iwl_is_rfkill(priv)) { |
b481de9c ZY |
3276 | IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); |
3277 | goto done; | |
3278 | } | |
3279 | ||
3280 | if (!test_bit(STATUS_READY, &priv->status)) { | |
3281 | IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); | |
3282 | goto done; | |
3283 | } | |
3284 | ||
3285 | if (!priv->scan_bands) { | |
3286 | IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); | |
3287 | goto done; | |
3288 | } | |
3289 | ||
3290 | if (!priv->scan) { | |
bb8c093b | 3291 | priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) + |
b481de9c ZY |
3292 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
3293 | if (!priv->scan) { | |
857485c0 | 3294 | ret = -ENOMEM; |
b481de9c ZY |
3295 | goto done; |
3296 | } | |
3297 | } | |
3298 | scan = priv->scan; | |
bb8c093b | 3299 | memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
3300 | |
3301 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
3302 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
3303 | ||
3109ece1 | 3304 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
3305 | u16 interval = 0; |
3306 | u32 extra; | |
3307 | u32 suspend_time = 100; | |
3308 | u32 scan_suspend_time = 100; | |
3309 | unsigned long flags; | |
3310 | ||
3311 | IWL_DEBUG_INFO("Scanning while associated...\n"); | |
3312 | ||
3313 | spin_lock_irqsave(&priv->lock, flags); | |
3314 | interval = priv->beacon_int; | |
3315 | spin_unlock_irqrestore(&priv->lock, flags); | |
3316 | ||
3317 | scan->suspend_time = 0; | |
052c4b9f | 3318 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
3319 | if (!interval) |
3320 | interval = suspend_time; | |
3321 | ||
3322 | extra = (suspend_time / interval) << 22; | |
3323 | scan_suspend_time = (extra | | |
3324 | ((suspend_time % interval) * 1024)); | |
3325 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
3326 | IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", | |
3327 | scan_suspend_time, interval); | |
3328 | } | |
3329 | ||
3330 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
3331 | if (priv->one_direct_scan) { | |
3332 | IWL_DEBUG_SCAN | |
3333 | ("Kicking off one direct scan for '%s'\n", | |
bb8c093b | 3334 | iwl4965_escape_essid(priv->direct_ssid, |
b481de9c ZY |
3335 | priv->direct_ssid_len)); |
3336 | scan->direct_scan[0].id = WLAN_EID_SSID; | |
3337 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
3338 | memcpy(scan->direct_scan[0].ssid, | |
3339 | priv->direct_ssid, priv->direct_ssid_len); | |
3340 | direct_mask = 1; | |
3109ece1 | 3341 | } else if (!iwl_is_associated(priv) && priv->essid_len) { |
786b4557 BM |
3342 | IWL_DEBUG_SCAN |
3343 | ("Kicking off one direct scan for '%s' when not associated\n", | |
3344 | iwl4965_escape_essid(priv->essid, priv->essid_len)); | |
b481de9c ZY |
3345 | scan->direct_scan[0].id = WLAN_EID_SSID; |
3346 | scan->direct_scan[0].len = priv->essid_len; | |
3347 | memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len); | |
3348 | direct_mask = 1; | |
857485c0 | 3349 | } else { |
786b4557 | 3350 | IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); |
b481de9c | 3351 | direct_mask = 0; |
857485c0 | 3352 | } |
b481de9c | 3353 | |
b481de9c | 3354 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
5425e490 | 3355 | scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; |
b481de9c ZY |
3356 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
3357 | ||
b481de9c ZY |
3358 | |
3359 | switch (priv->scan_bands) { | |
3360 | case 2: | |
3361 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; | |
3362 | scan->tx_cmd.rate_n_flags = | |
bb8c093b | 3363 | iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP, |
b481de9c ZY |
3364 | RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK); |
3365 | ||
3366 | scan->good_CRC_th = 0; | |
8318d78a | 3367 | band = IEEE80211_BAND_2GHZ; |
b481de9c ZY |
3368 | break; |
3369 | ||
3370 | case 1: | |
3371 | scan->tx_cmd.rate_n_flags = | |
bb8c093b | 3372 | iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP, |
b481de9c ZY |
3373 | RATE_MCS_ANT_B_MSK); |
3374 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 3375 | band = IEEE80211_BAND_5GHZ; |
b481de9c ZY |
3376 | break; |
3377 | ||
3378 | default: | |
3379 | IWL_WARNING("Invalid scan band count\n"); | |
3380 | goto done; | |
3381 | } | |
3382 | ||
78330fdd TW |
3383 | /* We don't build a direct scan probe request; the uCode will do |
3384 | * that based on the direct_mask added to each channel entry */ | |
3385 | cmd_len = iwl4965_fill_probe_req(priv, band, | |
3386 | (struct ieee80211_mgmt *)scan->data, | |
3387 | IWL_MAX_SCAN_SIZE - sizeof(*scan), 0); | |
3388 | ||
3389 | scan->tx_cmd.len = cpu_to_le16(cmd_len); | |
b481de9c ZY |
3390 | /* select Rx chains */ |
3391 | ||
3392 | /* Force use of chains B and C (0x6) for scan Rx. | |
3393 | * Avoid A (0x1) because of its off-channel reception on A-band. | |
3394 | * MIMO is not used here, but value is required to make uCode happy. */ | |
3395 | scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK | | |
3396 | cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) | | |
3397 | (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) | | |
3398 | (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS)); | |
3399 | ||
3400 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) | |
3401 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; | |
3402 | ||
786b4557 | 3403 | if (direct_mask) |
26c0f03f RC |
3404 | scan->channel_count = |
3405 | iwl4965_get_channels_for_scan( | |
3406 | priv, band, 1, /* active */ | |
3407 | direct_mask, | |
3408 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
786b4557 | 3409 | else |
26c0f03f RC |
3410 | scan->channel_count = |
3411 | iwl4965_get_channels_for_scan( | |
3412 | priv, band, 0, /* passive */ | |
3413 | direct_mask, | |
3414 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c | 3415 | |
5da4b55f MA |
3416 | scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK | |
3417 | RXON_FILTER_BCON_AWARE_MSK); | |
b481de9c | 3418 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 3419 | scan->channel_count * sizeof(struct iwl4965_scan_channel); |
b481de9c ZY |
3420 | cmd.data = scan; |
3421 | scan->len = cpu_to_le16(cmd.len); | |
3422 | ||
3423 | set_bit(STATUS_SCAN_HW, &priv->status); | |
857485c0 TW |
3424 | ret = iwl_send_cmd_sync(priv, &cmd); |
3425 | if (ret) | |
b481de9c ZY |
3426 | goto done; |
3427 | ||
3428 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
3429 | IWL_SCAN_CHECK_WATCHDOG); | |
3430 | ||
3431 | mutex_unlock(&priv->mutex); | |
3432 | return; | |
3433 | ||
3434 | done: | |
01ebd063 | 3435 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
3436 | queue_work(priv->workqueue, &priv->scan_completed); |
3437 | mutex_unlock(&priv->mutex); | |
3438 | } | |
3439 | ||
bb8c093b | 3440 | static void iwl4965_bg_up(struct work_struct *data) |
b481de9c | 3441 | { |
c79dd5b5 | 3442 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
3443 | |
3444 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3445 | return; | |
3446 | ||
3447 | mutex_lock(&priv->mutex); | |
bb8c093b | 3448 | __iwl4965_up(priv); |
b481de9c ZY |
3449 | mutex_unlock(&priv->mutex); |
3450 | } | |
3451 | ||
bb8c093b | 3452 | static void iwl4965_bg_restart(struct work_struct *data) |
b481de9c | 3453 | { |
c79dd5b5 | 3454 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
3455 | |
3456 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3457 | return; | |
3458 | ||
bb8c093b | 3459 | iwl4965_down(priv); |
b481de9c ZY |
3460 | queue_work(priv->workqueue, &priv->up); |
3461 | } | |
3462 | ||
bb8c093b | 3463 | static void iwl4965_bg_rx_replenish(struct work_struct *data) |
b481de9c | 3464 | { |
c79dd5b5 TW |
3465 | struct iwl_priv *priv = |
3466 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
3467 | |
3468 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3469 | return; | |
3470 | ||
3471 | mutex_lock(&priv->mutex); | |
a55360e4 | 3472 | iwl_rx_replenish(priv); |
b481de9c ZY |
3473 | mutex_unlock(&priv->mutex); |
3474 | } | |
3475 | ||
7878a5a4 MA |
3476 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
3477 | ||
508e32e1 | 3478 | static void iwl4965_post_associate(struct iwl_priv *priv) |
b481de9c | 3479 | { |
b481de9c | 3480 | struct ieee80211_conf *conf = NULL; |
857485c0 | 3481 | int ret = 0; |
0795af57 | 3482 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
3483 | |
3484 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
3485 | IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__); | |
3486 | return; | |
3487 | } | |
3488 | ||
0795af57 JP |
3489 | IWL_DEBUG_ASSOC("Associated as %d to: %s\n", |
3490 | priv->assoc_id, | |
3491 | print_mac(mac, priv->active_rxon.bssid_addr)); | |
b481de9c ZY |
3492 | |
3493 | ||
3494 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3495 | return; | |
3496 | ||
b481de9c | 3497 | |
508e32e1 | 3498 | if (!priv->vif || !priv->is_open) |
948c171c | 3499 | return; |
508e32e1 | 3500 | |
bb8c093b | 3501 | iwl4965_scan_cancel_timeout(priv, 200); |
052c4b9f | 3502 | |
b481de9c ZY |
3503 | conf = ieee80211_get_hw_conf(priv->hw); |
3504 | ||
3505 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 3506 | iwl4965_commit_rxon(priv); |
b481de9c | 3507 | |
bb8c093b CH |
3508 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
3509 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 3510 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 3511 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 3512 | if (ret) |
b481de9c ZY |
3513 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
3514 | "Attempting to continue.\n"); | |
3515 | ||
3516 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
3517 | ||
c8b0e6e1 | 3518 | #ifdef CONFIG_IWL4965_HT |
fd105e79 | 3519 | if (priv->current_ht_config.is_ht) |
47c5196e | 3520 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
c8b0e6e1 | 3521 | #endif /* CONFIG_IWL4965_HT*/ |
c7de35cd | 3522 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
3523 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
3524 | ||
3525 | IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n", | |
3526 | priv->assoc_id, priv->beacon_int); | |
3527 | ||
3528 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
3529 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
3530 | else | |
3531 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
3532 | ||
3533 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
3534 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
3535 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
3536 | else | |
3537 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
3538 | ||
3539 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
3540 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
3541 | ||
3542 | } | |
3543 | ||
bb8c093b | 3544 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3545 | |
3546 | switch (priv->iw_mode) { | |
3547 | case IEEE80211_IF_TYPE_STA: | |
bb8c093b | 3548 | iwl4965_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
3549 | break; |
3550 | ||
3551 | case IEEE80211_IF_TYPE_IBSS: | |
3552 | ||
3553 | /* clear out the station table */ | |
bf85ea4f | 3554 | iwlcore_clear_stations_table(priv); |
b481de9c | 3555 | |
4f40e4d9 TW |
3556 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
3557 | iwl_rxon_add_station(priv, priv->bssid, 0); | |
bb8c093b CH |
3558 | iwl4965_rate_scale_init(priv->hw, IWL_STA_ID); |
3559 | iwl4965_send_beacon_cmd(priv); | |
b481de9c ZY |
3560 | |
3561 | break; | |
3562 | ||
3563 | default: | |
3564 | IWL_ERROR("%s Should not be called in %d mode\n", | |
3565 | __FUNCTION__, priv->iw_mode); | |
3566 | break; | |
3567 | } | |
3568 | ||
bb8c093b | 3569 | iwl4965_sequence_reset(priv); |
b481de9c | 3570 | |
b481de9c | 3571 | /* Enable Rx differential gain and sensitivity calibrations */ |
f0832f13 | 3572 | iwl_chain_noise_reset(priv); |
b481de9c | 3573 | priv->start_calib = 1; |
b481de9c ZY |
3574 | |
3575 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
3576 | priv->assoc_station_added = 1; | |
3577 | ||
bb8c093b | 3578 | iwl4965_activate_qos(priv, 0); |
292ae174 | 3579 | |
5da4b55f | 3580 | iwl_power_update_mode(priv, 0); |
7878a5a4 MA |
3581 | /* we have just associated, don't start scan too early */ |
3582 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
508e32e1 RC |
3583 | } |
3584 | ||
3585 | ||
3586 | static void iwl4965_bg_post_associate(struct work_struct *data) | |
3587 | { | |
3588 | struct iwl_priv *priv = container_of(data, struct iwl_priv, | |
3589 | post_associate.work); | |
3590 | ||
3591 | mutex_lock(&priv->mutex); | |
3592 | iwl4965_post_associate(priv); | |
b481de9c | 3593 | mutex_unlock(&priv->mutex); |
508e32e1 | 3594 | |
b481de9c ZY |
3595 | } |
3596 | ||
bb8c093b | 3597 | static void iwl4965_bg_abort_scan(struct work_struct *work) |
b481de9c | 3598 | { |
c79dd5b5 | 3599 | struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan); |
b481de9c | 3600 | |
fee1247a | 3601 | if (!iwl_is_ready(priv)) |
b481de9c ZY |
3602 | return; |
3603 | ||
3604 | mutex_lock(&priv->mutex); | |
3605 | ||
3606 | set_bit(STATUS_SCAN_ABORTING, &priv->status); | |
bb8c093b | 3607 | iwl4965_send_scan_abort(priv); |
b481de9c ZY |
3608 | |
3609 | mutex_unlock(&priv->mutex); | |
3610 | } | |
3611 | ||
76bb77e0 ZY |
3612 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
3613 | ||
bb8c093b | 3614 | static void iwl4965_bg_scan_completed(struct work_struct *work) |
b481de9c | 3615 | { |
c79dd5b5 TW |
3616 | struct iwl_priv *priv = |
3617 | container_of(work, struct iwl_priv, scan_completed); | |
b481de9c | 3618 | |
f3d67999 | 3619 | IWL_DEBUG(IWL_DL_SCAN, "SCAN complete scan\n"); |
b481de9c ZY |
3620 | |
3621 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3622 | return; | |
3623 | ||
a0646470 ZY |
3624 | if (test_bit(STATUS_CONF_PENDING, &priv->status)) |
3625 | iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw)); | |
76bb77e0 | 3626 | |
b481de9c ZY |
3627 | ieee80211_scan_completed(priv->hw); |
3628 | ||
3629 | /* Since setting the TXPOWER may have been deferred while | |
3630 | * performing the scan, fire one off */ | |
3631 | mutex_lock(&priv->mutex); | |
bb8c093b | 3632 | iwl4965_hw_reg_send_txpower(priv); |
b481de9c ZY |
3633 | mutex_unlock(&priv->mutex); |
3634 | } | |
3635 | ||
3636 | /***************************************************************************** | |
3637 | * | |
3638 | * mac80211 entry point functions | |
3639 | * | |
3640 | *****************************************************************************/ | |
3641 | ||
5a66926a ZY |
3642 | #define UCODE_READY_TIMEOUT (2 * HZ) |
3643 | ||
bb8c093b | 3644 | static int iwl4965_mac_start(struct ieee80211_hw *hw) |
b481de9c | 3645 | { |
c79dd5b5 | 3646 | struct iwl_priv *priv = hw->priv; |
5a66926a | 3647 | int ret; |
b481de9c ZY |
3648 | |
3649 | IWL_DEBUG_MAC80211("enter\n"); | |
3650 | ||
5a66926a ZY |
3651 | if (pci_enable_device(priv->pci_dev)) { |
3652 | IWL_ERROR("Fail to pci_enable_device\n"); | |
3653 | return -ENODEV; | |
3654 | } | |
3655 | pci_restore_state(priv->pci_dev); | |
3656 | pci_enable_msi(priv->pci_dev); | |
3657 | ||
3658 | ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED, | |
3659 | DRV_NAME, priv); | |
3660 | if (ret) { | |
3661 | IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq); | |
3662 | goto out_disable_msi; | |
3663 | } | |
3664 | ||
b481de9c ZY |
3665 | /* we should be verifying the device is ready to be opened */ |
3666 | mutex_lock(&priv->mutex); | |
3667 | ||
c1adf9fb | 3668 | memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); |
5a66926a ZY |
3669 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
3670 | * ucode filename and max sizes are card-specific. */ | |
b481de9c | 3671 | |
5a66926a ZY |
3672 | if (!priv->ucode_code.len) { |
3673 | ret = iwl4965_read_ucode(priv); | |
3674 | if (ret) { | |
3675 | IWL_ERROR("Could not read microcode: %d\n", ret); | |
3676 | mutex_unlock(&priv->mutex); | |
3677 | goto out_release_irq; | |
3678 | } | |
3679 | } | |
b481de9c | 3680 | |
e655b9f0 | 3681 | ret = __iwl4965_up(priv); |
5a66926a | 3682 | |
b481de9c | 3683 | mutex_unlock(&priv->mutex); |
5a66926a | 3684 | |
e655b9f0 ZY |
3685 | if (ret) |
3686 | goto out_release_irq; | |
3687 | ||
3688 | IWL_DEBUG_INFO("Start UP work done.\n"); | |
3689 | ||
3690 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
3691 | return 0; | |
3692 | ||
fe9b6b72 | 3693 | /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from |
5a66926a | 3694 | * mac80211 will not be run successfully. */ |
fe9b6b72 RR |
3695 | if (priv->ucode_type == UCODE_RT) { |
3696 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
3697 | test_bit(STATUS_READY, &priv->status), | |
3698 | UCODE_READY_TIMEOUT); | |
3699 | if (!ret) { | |
3700 | if (!test_bit(STATUS_READY, &priv->status)) { | |
3701 | IWL_ERROR("START_ALIVE timeout after %dms.\n", | |
3702 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
3703 | ret = -ETIMEDOUT; | |
3704 | goto out_release_irq; | |
3705 | } | |
5a66926a | 3706 | } |
5a66926a | 3707 | |
fe9b6b72 RR |
3708 | priv->is_open = 1; |
3709 | } | |
b481de9c ZY |
3710 | IWL_DEBUG_MAC80211("leave\n"); |
3711 | return 0; | |
5a66926a ZY |
3712 | |
3713 | out_release_irq: | |
3714 | free_irq(priv->pci_dev->irq, priv); | |
3715 | out_disable_msi: | |
3716 | pci_disable_msi(priv->pci_dev); | |
e655b9f0 ZY |
3717 | pci_disable_device(priv->pci_dev); |
3718 | priv->is_open = 0; | |
3719 | IWL_DEBUG_MAC80211("leave - failed\n"); | |
5a66926a | 3720 | return ret; |
b481de9c ZY |
3721 | } |
3722 | ||
bb8c093b | 3723 | static void iwl4965_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 3724 | { |
c79dd5b5 | 3725 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3726 | |
3727 | IWL_DEBUG_MAC80211("enter\n"); | |
948c171c | 3728 | |
e655b9f0 ZY |
3729 | if (!priv->is_open) { |
3730 | IWL_DEBUG_MAC80211("leave - skip\n"); | |
3731 | return; | |
3732 | } | |
3733 | ||
b481de9c | 3734 | priv->is_open = 0; |
5a66926a | 3735 | |
fee1247a | 3736 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
3737 | /* stop mac, cancel any scan request and clear |
3738 | * RXON_FILTER_ASSOC_MSK BIT | |
3739 | */ | |
5a66926a ZY |
3740 | mutex_lock(&priv->mutex); |
3741 | iwl4965_scan_cancel_timeout(priv, 100); | |
3742 | cancel_delayed_work(&priv->post_associate); | |
fde3571f | 3743 | mutex_unlock(&priv->mutex); |
fde3571f MA |
3744 | } |
3745 | ||
5a66926a ZY |
3746 | iwl4965_down(priv); |
3747 | ||
3748 | flush_workqueue(priv->workqueue); | |
3749 | free_irq(priv->pci_dev->irq, priv); | |
3750 | pci_disable_msi(priv->pci_dev); | |
3751 | pci_save_state(priv->pci_dev); | |
3752 | pci_disable_device(priv->pci_dev); | |
948c171c | 3753 | |
b481de9c | 3754 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
3755 | } |
3756 | ||
e039fa4a | 3757 | static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3758 | { |
c79dd5b5 | 3759 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3760 | |
3761 | IWL_DEBUG_MAC80211("enter\n"); | |
3762 | ||
3763 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
3764 | IWL_DEBUG_MAC80211("leave - monitor\n"); | |
3765 | return -1; | |
3766 | } | |
3767 | ||
3768 | IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, | |
e039fa4a | 3769 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 3770 | |
e039fa4a | 3771 | if (iwl_tx_skb(priv, skb)) |
b481de9c ZY |
3772 | dev_kfree_skb_any(skb); |
3773 | ||
3774 | IWL_DEBUG_MAC80211("leave\n"); | |
3775 | return 0; | |
3776 | } | |
3777 | ||
bb8c093b | 3778 | static int iwl4965_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
3779 | struct ieee80211_if_init_conf *conf) |
3780 | { | |
c79dd5b5 | 3781 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3782 | unsigned long flags; |
0795af57 | 3783 | DECLARE_MAC_BUF(mac); |
b481de9c | 3784 | |
32bfd35d | 3785 | IWL_DEBUG_MAC80211("enter: type %d\n", conf->type); |
b481de9c | 3786 | |
32bfd35d JB |
3787 | if (priv->vif) { |
3788 | IWL_DEBUG_MAC80211("leave - vif != NULL\n"); | |
75849d28 | 3789 | return -EOPNOTSUPP; |
b481de9c ZY |
3790 | } |
3791 | ||
3792 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 3793 | priv->vif = conf->vif; |
b481de9c ZY |
3794 | |
3795 | spin_unlock_irqrestore(&priv->lock, flags); | |
3796 | ||
3797 | mutex_lock(&priv->mutex); | |
864792e3 TW |
3798 | |
3799 | if (conf->mac_addr) { | |
3800 | IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr)); | |
3801 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); | |
3802 | } | |
b481de9c | 3803 | |
fee1247a | 3804 | if (iwl_is_ready(priv)) |
5a66926a ZY |
3805 | iwl4965_set_mode(priv, conf->type); |
3806 | ||
b481de9c ZY |
3807 | mutex_unlock(&priv->mutex); |
3808 | ||
5a66926a | 3809 | IWL_DEBUG_MAC80211("leave\n"); |
b481de9c ZY |
3810 | return 0; |
3811 | } | |
3812 | ||
3813 | /** | |
bb8c093b | 3814 | * iwl4965_mac_config - mac80211 config callback |
b481de9c ZY |
3815 | * |
3816 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
3817 | * be set inappropriately and the driver currently sets the hardware up to | |
3818 | * use it whenever needed. | |
3819 | */ | |
bb8c093b | 3820 | static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) |
b481de9c | 3821 | { |
c79dd5b5 | 3822 | struct iwl_priv *priv = hw->priv; |
bf85ea4f | 3823 | const struct iwl_channel_info *ch_info; |
b481de9c | 3824 | unsigned long flags; |
76bb77e0 | 3825 | int ret = 0; |
b481de9c ZY |
3826 | |
3827 | mutex_lock(&priv->mutex); | |
8318d78a | 3828 | IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); |
b481de9c | 3829 | |
12342c47 ZY |
3830 | priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
3831 | ||
fee1247a | 3832 | if (!iwl_is_ready(priv)) { |
b481de9c | 3833 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
76bb77e0 ZY |
3834 | ret = -EIO; |
3835 | goto out; | |
b481de9c ZY |
3836 | } |
3837 | ||
1ea87396 | 3838 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
b481de9c | 3839 | test_bit(STATUS_SCANNING, &priv->status))) { |
a0646470 ZY |
3840 | IWL_DEBUG_MAC80211("leave - scanning\n"); |
3841 | set_bit(STATUS_CONF_PENDING, &priv->status); | |
b481de9c | 3842 | mutex_unlock(&priv->mutex); |
a0646470 | 3843 | return 0; |
b481de9c ZY |
3844 | } |
3845 | ||
3846 | spin_lock_irqsave(&priv->lock, flags); | |
3847 | ||
8622e705 | 3848 | ch_info = iwl_get_channel_info(priv, conf->channel->band, |
8318d78a | 3849 | ieee80211_frequency_to_channel(conf->channel->center_freq)); |
b481de9c | 3850 | if (!is_channel_valid(ch_info)) { |
b481de9c ZY |
3851 | IWL_DEBUG_MAC80211("leave - invalid channel\n"); |
3852 | spin_unlock_irqrestore(&priv->lock, flags); | |
76bb77e0 ZY |
3853 | ret = -EINVAL; |
3854 | goto out; | |
b481de9c ZY |
3855 | } |
3856 | ||
c8b0e6e1 | 3857 | #ifdef CONFIG_IWL4965_HT |
78330fdd | 3858 | /* if we are switching from ht to 2.4 clear flags |
b481de9c ZY |
3859 | * from any ht related info since 2.4 does not |
3860 | * support ht */ | |
78330fdd | 3861 | if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel->hw_value) |
b481de9c ZY |
3862 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH |
3863 | && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) | |
3864 | #endif | |
3865 | ) | |
3866 | priv->staging_rxon.flags = 0; | |
c8b0e6e1 | 3867 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 3868 | |
c7de35cd | 3869 | iwl_set_rxon_channel(priv, conf->channel->band, |
8318d78a | 3870 | ieee80211_frequency_to_channel(conf->channel->center_freq)); |
b481de9c | 3871 | |
8318d78a | 3872 | iwl4965_set_flags_for_phymode(priv, conf->channel->band); |
b481de9c ZY |
3873 | |
3874 | /* The list of supported rates and rate mask can be different | |
8318d78a | 3875 | * for each band; since the band may have changed, reset |
b481de9c | 3876 | * the rate mask to what mac80211 lists */ |
bb8c093b | 3877 | iwl4965_set_rate(priv); |
b481de9c ZY |
3878 | |
3879 | spin_unlock_irqrestore(&priv->lock, flags); | |
3880 | ||
3881 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
3882 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 3883 | iwl4965_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 3884 | goto out; |
b481de9c ZY |
3885 | } |
3886 | #endif | |
3887 | ||
ad97edd2 MA |
3888 | if (priv->cfg->ops->lib->radio_kill_sw) |
3889 | priv->cfg->ops->lib->radio_kill_sw(priv, !conf->radio_enabled); | |
b481de9c ZY |
3890 | |
3891 | if (!conf->radio_enabled) { | |
3892 | IWL_DEBUG_MAC80211("leave - radio disabled\n"); | |
76bb77e0 | 3893 | goto out; |
b481de9c ZY |
3894 | } |
3895 | ||
fee1247a | 3896 | if (iwl_is_rfkill(priv)) { |
b481de9c | 3897 | IWL_DEBUG_MAC80211("leave - RF kill\n"); |
76bb77e0 ZY |
3898 | ret = -EIO; |
3899 | goto out; | |
b481de9c ZY |
3900 | } |
3901 | ||
bb8c093b | 3902 | iwl4965_set_rate(priv); |
b481de9c ZY |
3903 | |
3904 | if (memcmp(&priv->active_rxon, | |
3905 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 3906 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3907 | else |
3908 | IWL_DEBUG_INFO("No re-sending same RXON configuration.\n"); | |
3909 | ||
3910 | IWL_DEBUG_MAC80211("leave\n"); | |
3911 | ||
a0646470 ZY |
3912 | out: |
3913 | clear_bit(STATUS_CONF_PENDING, &priv->status); | |
5a66926a | 3914 | mutex_unlock(&priv->mutex); |
76bb77e0 | 3915 | return ret; |
b481de9c ZY |
3916 | } |
3917 | ||
c79dd5b5 | 3918 | static void iwl4965_config_ap(struct iwl_priv *priv) |
b481de9c | 3919 | { |
857485c0 | 3920 | int ret = 0; |
b481de9c | 3921 | |
d986bcd1 | 3922 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
3923 | return; |
3924 | ||
3925 | /* The following should be done only at AP bring up */ | |
3926 | if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) { | |
3927 | ||
3928 | /* RXON - unassoc (to set timing command) */ | |
3929 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 3930 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
3931 | |
3932 | /* RXON Timing */ | |
bb8c093b CH |
3933 | memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd)); |
3934 | iwl4965_setup_rxon_timing(priv); | |
857485c0 | 3935 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 3936 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 3937 | if (ret) |
b481de9c ZY |
3938 | IWL_WARNING("REPLY_RXON_TIMING failed - " |
3939 | "Attempting to continue.\n"); | |
3940 | ||
c7de35cd | 3941 | iwl_set_rxon_chain(priv); |
b481de9c ZY |
3942 | |
3943 | /* FIXME: what should be the assoc_id for AP? */ | |
3944 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
3945 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
3946 | priv->staging_rxon.flags |= | |
3947 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
3948 | else | |
3949 | priv->staging_rxon.flags &= | |
3950 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
3951 | ||
3952 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
3953 | if (priv->assoc_capability & | |
3954 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
3955 | priv->staging_rxon.flags |= | |
3956 | RXON_FLG_SHORT_SLOT_MSK; | |
3957 | else | |
3958 | priv->staging_rxon.flags &= | |
3959 | ~RXON_FLG_SHORT_SLOT_MSK; | |
3960 | ||
3961 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
3962 | priv->staging_rxon.flags &= | |
3963 | ~RXON_FLG_SHORT_SLOT_MSK; | |
3964 | } | |
3965 | /* restore RXON assoc */ | |
3966 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 3967 | iwl4965_commit_rxon(priv); |
bb8c093b | 3968 | iwl4965_activate_qos(priv, 1); |
4f40e4d9 | 3969 | iwl_rxon_add_station(priv, iwl_bcast_addr, 0); |
e1493deb | 3970 | } |
bb8c093b | 3971 | iwl4965_send_beacon_cmd(priv); |
b481de9c ZY |
3972 | |
3973 | /* FIXME - we need to add code here to detect a totally new | |
3974 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
3975 | * clear sta table, add BCAST sta... */ | |
3976 | } | |
3977 | ||
32bfd35d JB |
3978 | static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, |
3979 | struct ieee80211_vif *vif, | |
b481de9c ZY |
3980 | struct ieee80211_if_conf *conf) |
3981 | { | |
c79dd5b5 | 3982 | struct iwl_priv *priv = hw->priv; |
0795af57 | 3983 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
3984 | unsigned long flags; |
3985 | int rc; | |
3986 | ||
3987 | if (conf == NULL) | |
3988 | return -EIO; | |
3989 | ||
b716bb91 EG |
3990 | if (priv->vif != vif) { |
3991 | IWL_DEBUG_MAC80211("leave - priv->vif != vif\n"); | |
b716bb91 EG |
3992 | return 0; |
3993 | } | |
3994 | ||
b481de9c ZY |
3995 | if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) && |
3996 | (!conf->beacon || !conf->ssid_len)) { | |
3997 | IWL_DEBUG_MAC80211 | |
3998 | ("Leaving in AP mode because HostAPD is not ready.\n"); | |
3999 | return 0; | |
4000 | } | |
4001 | ||
fee1247a | 4002 | if (!iwl_is_alive(priv)) |
5a66926a ZY |
4003 | return -EAGAIN; |
4004 | ||
b481de9c ZY |
4005 | mutex_lock(&priv->mutex); |
4006 | ||
b481de9c | 4007 | if (conf->bssid) |
0795af57 JP |
4008 | IWL_DEBUG_MAC80211("bssid: %s\n", |
4009 | print_mac(mac, conf->bssid)); | |
b481de9c | 4010 | |
4150c572 JB |
4011 | /* |
4012 | * very dubious code was here; the probe filtering flag is never set: | |
4013 | * | |
b481de9c ZY |
4014 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
4015 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 4016 | */ |
b481de9c ZY |
4017 | |
4018 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
4019 | if (!conf->bssid) { | |
4020 | conf->bssid = priv->mac_addr; | |
4021 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
0795af57 JP |
4022 | IWL_DEBUG_MAC80211("bssid was set to: %s\n", |
4023 | print_mac(mac, conf->bssid)); | |
b481de9c ZY |
4024 | } |
4025 | if (priv->ibss_beacon) | |
4026 | dev_kfree_skb(priv->ibss_beacon); | |
4027 | ||
4028 | priv->ibss_beacon = conf->beacon; | |
4029 | } | |
4030 | ||
fee1247a | 4031 | if (iwl_is_rfkill(priv)) |
fde3571f MA |
4032 | goto done; |
4033 | ||
b481de9c ZY |
4034 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
4035 | !is_multicast_ether_addr(conf->bssid)) { | |
4036 | /* If there is currently a HW scan going on in the background | |
4037 | * then we need to cancel it else the RXON below will fail. */ | |
bb8c093b | 4038 | if (iwl4965_scan_cancel_timeout(priv, 100)) { |
b481de9c ZY |
4039 | IWL_WARNING("Aborted scan still in progress " |
4040 | "after 100ms\n"); | |
4041 | IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); | |
4042 | mutex_unlock(&priv->mutex); | |
4043 | return -EAGAIN; | |
4044 | } | |
4045 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); | |
4046 | ||
4047 | /* TODO: Audit driver for usage of these members and see | |
4048 | * if mac80211 deprecates them (priv->bssid looks like it | |
4049 | * shouldn't be there, but I haven't scanned the IBSS code | |
4050 | * to verify) - jpk */ | |
4051 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
4052 | ||
4053 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 4054 | iwl4965_config_ap(priv); |
b481de9c | 4055 | else { |
bb8c093b | 4056 | rc = iwl4965_commit_rxon(priv); |
b481de9c | 4057 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc) |
4f40e4d9 | 4058 | iwl_rxon_add_station( |
b481de9c ZY |
4059 | priv, priv->active_rxon.bssid_addr, 1); |
4060 | } | |
4061 | ||
4062 | } else { | |
bb8c093b | 4063 | iwl4965_scan_cancel_timeout(priv, 100); |
b481de9c | 4064 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 4065 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4066 | } |
4067 | ||
fde3571f | 4068 | done: |
b481de9c ZY |
4069 | spin_lock_irqsave(&priv->lock, flags); |
4070 | if (!conf->ssid_len) | |
4071 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
4072 | else | |
4073 | memcpy(priv->essid, conf->ssid, conf->ssid_len); | |
4074 | ||
4075 | priv->essid_len = conf->ssid_len; | |
4076 | spin_unlock_irqrestore(&priv->lock, flags); | |
4077 | ||
4078 | IWL_DEBUG_MAC80211("leave\n"); | |
4079 | mutex_unlock(&priv->mutex); | |
4080 | ||
4081 | return 0; | |
4082 | } | |
4083 | ||
bb8c093b | 4084 | static void iwl4965_configure_filter(struct ieee80211_hw *hw, |
4150c572 JB |
4085 | unsigned int changed_flags, |
4086 | unsigned int *total_flags, | |
4087 | int mc_count, struct dev_addr_list *mc_list) | |
4088 | { | |
4089 | /* | |
4090 | * XXX: dummy | |
bb8c093b | 4091 | * see also iwl4965_connection_init_rx_config |
4150c572 | 4092 | */ |
4419e39b AK |
4093 | struct iwl_priv *priv = hw->priv; |
4094 | int new_flags = 0; | |
4095 | if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
4096 | if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
4097 | IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n", | |
4098 | IEEE80211_IF_TYPE_MNTR, | |
4099 | changed_flags, *total_flags); | |
4100 | /* queue work 'cuz mac80211 is holding a lock which | |
4101 | * prevents us from issuing (synchronous) f/w cmds */ | |
4102 | queue_work(priv->workqueue, &priv->set_monitor); | |
4103 | new_flags &= FIF_PROMISC_IN_BSS | | |
4104 | FIF_OTHER_BSS | | |
4105 | FIF_ALLMULTI; | |
4106 | } | |
4107 | } | |
4108 | *total_flags = new_flags; | |
4150c572 JB |
4109 | } |
4110 | ||
bb8c093b | 4111 | static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
4112 | struct ieee80211_if_init_conf *conf) |
4113 | { | |
c79dd5b5 | 4114 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4115 | |
4116 | IWL_DEBUG_MAC80211("enter\n"); | |
4117 | ||
4118 | mutex_lock(&priv->mutex); | |
948c171c | 4119 | |
fee1247a | 4120 | if (iwl_is_ready_rf(priv)) { |
fde3571f MA |
4121 | iwl4965_scan_cancel_timeout(priv, 100); |
4122 | cancel_delayed_work(&priv->post_associate); | |
4123 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
4124 | iwl4965_commit_rxon(priv); | |
4125 | } | |
32bfd35d JB |
4126 | if (priv->vif == conf->vif) { |
4127 | priv->vif = NULL; | |
b481de9c ZY |
4128 | memset(priv->bssid, 0, ETH_ALEN); |
4129 | memset(priv->essid, 0, IW_ESSID_MAX_SIZE); | |
4130 | priv->essid_len = 0; | |
4131 | } | |
4132 | mutex_unlock(&priv->mutex); | |
4133 | ||
4134 | IWL_DEBUG_MAC80211("leave\n"); | |
4135 | ||
4136 | } | |
471b3efd | 4137 | |
3109ece1 | 4138 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
471b3efd JB |
4139 | static void iwl4965_bss_info_changed(struct ieee80211_hw *hw, |
4140 | struct ieee80211_vif *vif, | |
4141 | struct ieee80211_bss_conf *bss_conf, | |
4142 | u32 changes) | |
220173b0 | 4143 | { |
c79dd5b5 | 4144 | struct iwl_priv *priv = hw->priv; |
220173b0 | 4145 | |
3109ece1 TW |
4146 | IWL_DEBUG_MAC80211("changes = 0x%X\n", changes); |
4147 | ||
471b3efd | 4148 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
3109ece1 TW |
4149 | IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n", |
4150 | bss_conf->use_short_preamble); | |
471b3efd | 4151 | if (bss_conf->use_short_preamble) |
220173b0 TW |
4152 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
4153 | else | |
4154 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
4155 | } | |
4156 | ||
471b3efd | 4157 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
3109ece1 | 4158 | IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); |
8318d78a | 4159 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
220173b0 TW |
4160 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
4161 | else | |
4162 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
4163 | } | |
4164 | ||
98952d5d | 4165 | if (changes & BSS_CHANGED_HT) { |
3109ece1 | 4166 | IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht); |
98952d5d | 4167 | iwl4965_ht_conf(priv, bss_conf); |
c7de35cd | 4168 | iwl_set_rxon_chain(priv); |
98952d5d TW |
4169 | } |
4170 | ||
471b3efd | 4171 | if (changes & BSS_CHANGED_ASSOC) { |
3109ece1 | 4172 | IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc); |
508e32e1 RC |
4173 | /* This should never happen as this function should |
4174 | * never be called from interrupt context. */ | |
4175 | if (WARN_ON_ONCE(in_interrupt())) | |
4176 | return; | |
3109ece1 TW |
4177 | if (bss_conf->assoc) { |
4178 | priv->assoc_id = bss_conf->aid; | |
4179 | priv->beacon_int = bss_conf->beacon_int; | |
4180 | priv->timestamp = bss_conf->timestamp; | |
4181 | priv->assoc_capability = bss_conf->assoc_capability; | |
4182 | priv->next_scan_jiffies = jiffies + | |
4183 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
508e32e1 RC |
4184 | mutex_lock(&priv->mutex); |
4185 | iwl4965_post_associate(priv); | |
4186 | mutex_unlock(&priv->mutex); | |
3109ece1 TW |
4187 | } else { |
4188 | priv->assoc_id = 0; | |
4189 | IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc); | |
4190 | } | |
4191 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { | |
4192 | IWL_DEBUG_MAC80211("Associated Changes %d\n", changes); | |
7e8c519e | 4193 | iwl_send_rxon_assoc(priv); |
471b3efd JB |
4194 | } |
4195 | ||
220173b0 | 4196 | } |
b481de9c | 4197 | |
bb8c093b | 4198 | static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) |
b481de9c ZY |
4199 | { |
4200 | int rc = 0; | |
4201 | unsigned long flags; | |
c79dd5b5 | 4202 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4203 | |
4204 | IWL_DEBUG_MAC80211("enter\n"); | |
4205 | ||
052c4b9f | 4206 | mutex_lock(&priv->mutex); |
b481de9c ZY |
4207 | spin_lock_irqsave(&priv->lock, flags); |
4208 | ||
fee1247a | 4209 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4210 | rc = -EIO; |
4211 | IWL_DEBUG_MAC80211("leave - not ready or exit pending\n"); | |
4212 | goto out_unlock; | |
4213 | } | |
4214 | ||
4215 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */ | |
4216 | rc = -EIO; | |
4217 | IWL_ERROR("ERROR: APs don't scan\n"); | |
4218 | goto out_unlock; | |
4219 | } | |
4220 | ||
7878a5a4 MA |
4221 | /* we don't schedule scan within next_scan_jiffies period */ |
4222 | if (priv->next_scan_jiffies && | |
4223 | time_after(priv->next_scan_jiffies, jiffies)) { | |
4224 | rc = -EAGAIN; | |
4225 | goto out_unlock; | |
4226 | } | |
b481de9c | 4227 | /* if we just finished scan ask for delay */ |
7878a5a4 MA |
4228 | if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies + |
4229 | IWL_DELAY_NEXT_SCAN, jiffies)) { | |
b481de9c ZY |
4230 | rc = -EAGAIN; |
4231 | goto out_unlock; | |
4232 | } | |
4233 | if (len) { | |
7878a5a4 | 4234 | IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", |
bb8c093b | 4235 | iwl4965_escape_essid(ssid, len), (int)len); |
b481de9c ZY |
4236 | |
4237 | priv->one_direct_scan = 1; | |
4238 | priv->direct_ssid_len = (u8) | |
4239 | min((u8) len, (u8) IW_ESSID_MAX_SIZE); | |
4240 | memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len); | |
948c171c MA |
4241 | } else |
4242 | priv->one_direct_scan = 0; | |
b481de9c | 4243 | |
bb8c093b | 4244 | rc = iwl4965_scan_initiate(priv); |
b481de9c ZY |
4245 | |
4246 | IWL_DEBUG_MAC80211("leave\n"); | |
4247 | ||
4248 | out_unlock: | |
4249 | spin_unlock_irqrestore(&priv->lock, flags); | |
052c4b9f | 4250 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
4251 | |
4252 | return rc; | |
4253 | } | |
4254 | ||
ab885f8c EG |
4255 | static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, |
4256 | struct ieee80211_key_conf *keyconf, const u8 *addr, | |
4257 | u32 iv32, u16 *phase1key) | |
4258 | { | |
4259 | struct iwl_priv *priv = hw->priv; | |
4260 | u8 sta_id = IWL_INVALID_STATION; | |
4261 | unsigned long flags; | |
4262 | __le16 key_flags = 0; | |
4263 | int i; | |
4264 | DECLARE_MAC_BUF(mac); | |
4265 | ||
4266 | IWL_DEBUG_MAC80211("enter\n"); | |
4267 | ||
947b13a7 | 4268 | sta_id = iwl_find_station(priv, addr); |
ab885f8c EG |
4269 | if (sta_id == IWL_INVALID_STATION) { |
4270 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
4271 | print_mac(mac, addr)); | |
4272 | return; | |
4273 | } | |
4274 | ||
4275 | iwl4965_scan_cancel_timeout(priv, 100); | |
4276 | ||
4277 | key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); | |
4278 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
4279 | key_flags &= ~STA_KEY_FLG_INVALID; | |
4280 | ||
5425e490 | 4281 | if (sta_id == priv->hw_params.bcast_sta_id) |
ab885f8c EG |
4282 | key_flags |= STA_KEY_MULTICAST_MSK; |
4283 | ||
4284 | spin_lock_irqsave(&priv->sta_lock, flags); | |
4285 | ||
ab885f8c EG |
4286 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
4287 | priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; | |
4288 | ||
4289 | for (i = 0; i < 5; i++) | |
4290 | priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = | |
4291 | cpu_to_le16(phase1key[i]); | |
4292 | ||
4293 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
4294 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
4295 | ||
133636de | 4296 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
ab885f8c EG |
4297 | |
4298 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
4299 | ||
4300 | IWL_DEBUG_MAC80211("leave\n"); | |
4301 | } | |
4302 | ||
bb8c093b | 4303 | static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
b481de9c ZY |
4304 | const u8 *local_addr, const u8 *addr, |
4305 | struct ieee80211_key_conf *key) | |
4306 | { | |
c79dd5b5 | 4307 | struct iwl_priv *priv = hw->priv; |
0795af57 | 4308 | DECLARE_MAC_BUF(mac); |
deb09c43 EG |
4309 | int ret = 0; |
4310 | u8 sta_id = IWL_INVALID_STATION; | |
6974e363 | 4311 | u8 is_default_wep_key = 0; |
b481de9c ZY |
4312 | |
4313 | IWL_DEBUG_MAC80211("enter\n"); | |
4314 | ||
099b40b7 | 4315 | if (priv->hw_params.sw_crypto) { |
b481de9c ZY |
4316 | IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n"); |
4317 | return -EOPNOTSUPP; | |
4318 | } | |
4319 | ||
4320 | if (is_zero_ether_addr(addr)) | |
4321 | /* only support pairwise keys */ | |
4322 | return -EOPNOTSUPP; | |
4323 | ||
947b13a7 | 4324 | sta_id = iwl_find_station(priv, addr); |
6974e363 EG |
4325 | if (sta_id == IWL_INVALID_STATION) { |
4326 | IWL_DEBUG_MAC80211("leave - %s not in station map.\n", | |
4327 | print_mac(mac, addr)); | |
4328 | return -EINVAL; | |
b481de9c | 4329 | |
deb09c43 | 4330 | } |
b481de9c | 4331 | |
6974e363 | 4332 | mutex_lock(&priv->mutex); |
bb8c093b | 4333 | iwl4965_scan_cancel_timeout(priv, 100); |
6974e363 EG |
4334 | mutex_unlock(&priv->mutex); |
4335 | ||
4336 | /* If we are getting WEP group key and we didn't receive any key mapping | |
4337 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
4338 | * in 1X mode. | |
4339 | * In legacy wep mode, we use another host command to the uCode */ | |
5425e490 | 4340 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
6974e363 EG |
4341 | priv->iw_mode != IEEE80211_IF_TYPE_AP) { |
4342 | if (cmd == SET_KEY) | |
4343 | is_default_wep_key = !priv->key_mapping_key; | |
4344 | else | |
ccc038ab EG |
4345 | is_default_wep_key = |
4346 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 4347 | } |
052c4b9f | 4348 | |
b481de9c | 4349 | switch (cmd) { |
deb09c43 | 4350 | case SET_KEY: |
6974e363 EG |
4351 | if (is_default_wep_key) |
4352 | ret = iwl_set_default_wep_key(priv, key); | |
deb09c43 | 4353 | else |
7480513f | 4354 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
4355 | |
4356 | IWL_DEBUG_MAC80211("enable hwcrypto key\n"); | |
b481de9c ZY |
4357 | break; |
4358 | case DISABLE_KEY: | |
6974e363 EG |
4359 | if (is_default_wep_key) |
4360 | ret = iwl_remove_default_wep_key(priv, key); | |
deb09c43 | 4361 | else |
3ec47732 | 4362 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
deb09c43 EG |
4363 | |
4364 | IWL_DEBUG_MAC80211("disable hwcrypto key\n"); | |
b481de9c ZY |
4365 | break; |
4366 | default: | |
deb09c43 | 4367 | ret = -EINVAL; |
b481de9c ZY |
4368 | } |
4369 | ||
4370 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c | 4371 | |
deb09c43 | 4372 | return ret; |
b481de9c ZY |
4373 | } |
4374 | ||
e100bb64 | 4375 | static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
4376 | const struct ieee80211_tx_queue_params *params) |
4377 | { | |
c79dd5b5 | 4378 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4379 | unsigned long flags; |
4380 | int q; | |
b481de9c ZY |
4381 | |
4382 | IWL_DEBUG_MAC80211("enter\n"); | |
4383 | ||
fee1247a | 4384 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4385 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4386 | return -EIO; | |
4387 | } | |
4388 | ||
4389 | if (queue >= AC_NUM) { | |
4390 | IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue); | |
4391 | return 0; | |
4392 | } | |
4393 | ||
b481de9c ZY |
4394 | if (!priv->qos_data.qos_enable) { |
4395 | priv->qos_data.qos_active = 0; | |
4396 | IWL_DEBUG_MAC80211("leave - qos not enabled\n"); | |
4397 | return 0; | |
4398 | } | |
4399 | q = AC_NUM - 1 - queue; | |
4400 | ||
4401 | spin_lock_irqsave(&priv->lock, flags); | |
4402 | ||
4403 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
4404 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
4405 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
4406 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 4407 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
4408 | |
4409 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
4410 | priv->qos_data.qos_active = 1; | |
4411 | ||
4412 | spin_unlock_irqrestore(&priv->lock, flags); | |
4413 | ||
4414 | mutex_lock(&priv->mutex); | |
4415 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) | |
bb8c093b | 4416 | iwl4965_activate_qos(priv, 1); |
3109ece1 | 4417 | else if (priv->assoc_id && iwl_is_associated(priv)) |
bb8c093b | 4418 | iwl4965_activate_qos(priv, 0); |
b481de9c ZY |
4419 | |
4420 | mutex_unlock(&priv->mutex); | |
4421 | ||
b481de9c ZY |
4422 | IWL_DEBUG_MAC80211("leave\n"); |
4423 | return 0; | |
4424 | } | |
4425 | ||
bb8c093b | 4426 | static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
4427 | struct ieee80211_tx_queue_stats *stats) |
4428 | { | |
c79dd5b5 | 4429 | struct iwl_priv *priv = hw->priv; |
b481de9c | 4430 | int i, avail; |
16466903 | 4431 | struct iwl_tx_queue *txq; |
443cfd45 | 4432 | struct iwl_queue *q; |
b481de9c ZY |
4433 | unsigned long flags; |
4434 | ||
4435 | IWL_DEBUG_MAC80211("enter\n"); | |
4436 | ||
fee1247a | 4437 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4438 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4439 | return -EIO; | |
4440 | } | |
4441 | ||
4442 | spin_lock_irqsave(&priv->lock, flags); | |
4443 | ||
4444 | for (i = 0; i < AC_NUM; i++) { | |
4445 | txq = &priv->txq[i]; | |
4446 | q = &txq->q; | |
443cfd45 | 4447 | avail = iwl_queue_space(q); |
b481de9c | 4448 | |
57ffc589 JB |
4449 | stats[i].len = q->n_window - avail; |
4450 | stats[i].limit = q->n_window - q->high_mark; | |
4451 | stats[i].count = q->n_window; | |
b481de9c ZY |
4452 | |
4453 | } | |
4454 | spin_unlock_irqrestore(&priv->lock, flags); | |
4455 | ||
4456 | IWL_DEBUG_MAC80211("leave\n"); | |
4457 | ||
4458 | return 0; | |
4459 | } | |
4460 | ||
bb8c093b | 4461 | static int iwl4965_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
4462 | struct ieee80211_low_level_stats *stats) |
4463 | { | |
bf403db8 EK |
4464 | struct iwl_priv *priv = hw->priv; |
4465 | ||
4466 | priv = hw->priv; | |
b481de9c ZY |
4467 | IWL_DEBUG_MAC80211("enter\n"); |
4468 | IWL_DEBUG_MAC80211("leave\n"); | |
4469 | ||
4470 | return 0; | |
4471 | } | |
4472 | ||
bb8c093b | 4473 | static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw) |
b481de9c | 4474 | { |
bf403db8 EK |
4475 | struct iwl_priv *priv; |
4476 | ||
4477 | priv = hw->priv; | |
b481de9c ZY |
4478 | IWL_DEBUG_MAC80211("enter\n"); |
4479 | IWL_DEBUG_MAC80211("leave\n"); | |
4480 | ||
4481 | return 0; | |
4482 | } | |
4483 | ||
bb8c093b | 4484 | static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 4485 | { |
c79dd5b5 | 4486 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4487 | unsigned long flags; |
4488 | ||
4489 | mutex_lock(&priv->mutex); | |
4490 | IWL_DEBUG_MAC80211("enter\n"); | |
4491 | ||
4492 | priv->lq_mngr.lq_ready = 0; | |
c8b0e6e1 | 4493 | #ifdef CONFIG_IWL4965_HT |
b481de9c | 4494 | spin_lock_irqsave(&priv->lock, flags); |
fd105e79 | 4495 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); |
b481de9c | 4496 | spin_unlock_irqrestore(&priv->lock, flags); |
c8b0e6e1 | 4497 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 4498 | |
c7de35cd | 4499 | iwl_reset_qos(priv); |
b481de9c ZY |
4500 | |
4501 | cancel_delayed_work(&priv->post_associate); | |
4502 | ||
4503 | spin_lock_irqsave(&priv->lock, flags); | |
4504 | priv->assoc_id = 0; | |
4505 | priv->assoc_capability = 0; | |
b481de9c ZY |
4506 | priv->assoc_station_added = 0; |
4507 | ||
4508 | /* new association get rid of ibss beacon skb */ | |
4509 | if (priv->ibss_beacon) | |
4510 | dev_kfree_skb(priv->ibss_beacon); | |
4511 | ||
4512 | priv->ibss_beacon = NULL; | |
4513 | ||
4514 | priv->beacon_int = priv->hw->conf.beacon_int; | |
3109ece1 | 4515 | priv->timestamp = 0; |
b481de9c ZY |
4516 | if ((priv->iw_mode == IEEE80211_IF_TYPE_STA)) |
4517 | priv->beacon_int = 0; | |
4518 | ||
4519 | spin_unlock_irqrestore(&priv->lock, flags); | |
4520 | ||
fee1247a | 4521 | if (!iwl_is_ready_rf(priv)) { |
fde3571f MA |
4522 | IWL_DEBUG_MAC80211("leave - not ready\n"); |
4523 | mutex_unlock(&priv->mutex); | |
4524 | return; | |
4525 | } | |
4526 | ||
052c4b9f | 4527 | /* we are restarting association process |
4528 | * clear RXON_FILTER_ASSOC_MSK bit | |
4529 | */ | |
4530 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
bb8c093b | 4531 | iwl4965_scan_cancel_timeout(priv, 100); |
052c4b9f | 4532 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 4533 | iwl4965_commit_rxon(priv); |
052c4b9f | 4534 | } |
4535 | ||
5da4b55f MA |
4536 | iwl_power_update_mode(priv, 0); |
4537 | ||
b481de9c ZY |
4538 | /* Per mac80211.h: This is only used in IBSS mode... */ |
4539 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
052c4b9f | 4540 | |
b481de9c ZY |
4541 | IWL_DEBUG_MAC80211("leave - not in IBSS\n"); |
4542 | mutex_unlock(&priv->mutex); | |
4543 | return; | |
4544 | } | |
4545 | ||
bb8c093b | 4546 | iwl4965_set_rate(priv); |
b481de9c ZY |
4547 | |
4548 | mutex_unlock(&priv->mutex); | |
4549 | ||
4550 | IWL_DEBUG_MAC80211("leave\n"); | |
b481de9c ZY |
4551 | } |
4552 | ||
e039fa4a | 4553 | static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 4554 | { |
c79dd5b5 | 4555 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4556 | unsigned long flags; |
4557 | ||
4558 | mutex_lock(&priv->mutex); | |
4559 | IWL_DEBUG_MAC80211("enter\n"); | |
4560 | ||
fee1247a | 4561 | if (!iwl_is_ready_rf(priv)) { |
b481de9c ZY |
4562 | IWL_DEBUG_MAC80211("leave - RF not ready\n"); |
4563 | mutex_unlock(&priv->mutex); | |
4564 | return -EIO; | |
4565 | } | |
4566 | ||
4567 | if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { | |
4568 | IWL_DEBUG_MAC80211("leave - not IBSS\n"); | |
4569 | mutex_unlock(&priv->mutex); | |
4570 | return -EIO; | |
4571 | } | |
4572 | ||
4573 | spin_lock_irqsave(&priv->lock, flags); | |
4574 | ||
4575 | if (priv->ibss_beacon) | |
4576 | dev_kfree_skb(priv->ibss_beacon); | |
4577 | ||
4578 | priv->ibss_beacon = skb; | |
4579 | ||
4580 | priv->assoc_id = 0; | |
4581 | ||
4582 | IWL_DEBUG_MAC80211("leave\n"); | |
4583 | spin_unlock_irqrestore(&priv->lock, flags); | |
4584 | ||
c7de35cd | 4585 | iwl_reset_qos(priv); |
b481de9c ZY |
4586 | |
4587 | queue_work(priv->workqueue, &priv->post_associate.work); | |
4588 | ||
4589 | mutex_unlock(&priv->mutex); | |
4590 | ||
4591 | return 0; | |
4592 | } | |
4593 | ||
b481de9c ZY |
4594 | /***************************************************************************** |
4595 | * | |
4596 | * sysfs attributes | |
4597 | * | |
4598 | *****************************************************************************/ | |
4599 | ||
0a6857e7 | 4600 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
4601 | |
4602 | /* | |
4603 | * The following adds a new attribute to the sysfs representation | |
4604 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
4605 | * used for controlling the debug level. | |
4606 | * | |
4607 | * See the level definitions in iwl for details. | |
4608 | */ | |
4609 | ||
8cf769c6 EK |
4610 | static ssize_t show_debug_level(struct device *d, |
4611 | struct device_attribute *attr, char *buf) | |
b481de9c | 4612 | { |
8cf769c6 EK |
4613 | struct iwl_priv *priv = d->driver_data; |
4614 | ||
4615 | return sprintf(buf, "0x%08X\n", priv->debug_level); | |
b481de9c | 4616 | } |
8cf769c6 EK |
4617 | static ssize_t store_debug_level(struct device *d, |
4618 | struct device_attribute *attr, | |
b481de9c ZY |
4619 | const char *buf, size_t count) |
4620 | { | |
8cf769c6 | 4621 | struct iwl_priv *priv = d->driver_data; |
b481de9c ZY |
4622 | char *p = (char *)buf; |
4623 | u32 val; | |
4624 | ||
4625 | val = simple_strtoul(p, &p, 0); | |
4626 | if (p == buf) | |
4627 | printk(KERN_INFO DRV_NAME | |
4628 | ": %s is not in hex or decimal form.\n", buf); | |
4629 | else | |
8cf769c6 | 4630 | priv->debug_level = val; |
b481de9c ZY |
4631 | |
4632 | return strnlen(buf, count); | |
4633 | } | |
4634 | ||
8cf769c6 EK |
4635 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
4636 | show_debug_level, store_debug_level); | |
4637 | ||
b481de9c | 4638 | |
0a6857e7 | 4639 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 4640 | |
b481de9c | 4641 | |
bc6f59bc TW |
4642 | static ssize_t show_version(struct device *d, |
4643 | struct device_attribute *attr, char *buf) | |
4644 | { | |
4645 | struct iwl_priv *priv = d->driver_data; | |
885ba202 | 4646 | struct iwl_alive_resp *palive = &priv->card_alive; |
bc6f59bc TW |
4647 | |
4648 | if (palive->is_valid) | |
4649 | return sprintf(buf, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" | |
4650 | "fw type: 0x%01X 0x%01X\n", | |
4651 | palive->ucode_major, palive->ucode_minor, | |
4652 | palive->sw_rev[0], palive->sw_rev[1], | |
4653 | palive->ver_type, palive->ver_subtype); | |
4654 | ||
4655 | else | |
4656 | return sprintf(buf, "fw not loaded\n"); | |
4657 | } | |
4658 | ||
4659 | static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); | |
4660 | ||
b481de9c ZY |
4661 | static ssize_t show_temperature(struct device *d, |
4662 | struct device_attribute *attr, char *buf) | |
4663 | { | |
c79dd5b5 | 4664 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 4665 | |
fee1247a | 4666 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4667 | return -EAGAIN; |
4668 | ||
bb8c093b | 4669 | return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv)); |
b481de9c ZY |
4670 | } |
4671 | ||
4672 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
4673 | ||
4674 | static ssize_t show_rs_window(struct device *d, | |
4675 | struct device_attribute *attr, | |
4676 | char *buf) | |
4677 | { | |
c79dd5b5 | 4678 | struct iwl_priv *priv = d->driver_data; |
bb8c093b | 4679 | return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID); |
b481de9c ZY |
4680 | } |
4681 | static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL); | |
4682 | ||
4683 | static ssize_t show_tx_power(struct device *d, | |
4684 | struct device_attribute *attr, char *buf) | |
4685 | { | |
c79dd5b5 | 4686 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4687 | return sprintf(buf, "%d\n", priv->user_txpower_limit); |
4688 | } | |
4689 | ||
4690 | static ssize_t store_tx_power(struct device *d, | |
4691 | struct device_attribute *attr, | |
4692 | const char *buf, size_t count) | |
4693 | { | |
c79dd5b5 | 4694 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4695 | char *p = (char *)buf; |
4696 | u32 val; | |
4697 | ||
4698 | val = simple_strtoul(p, &p, 10); | |
4699 | if (p == buf) | |
4700 | printk(KERN_INFO DRV_NAME | |
4701 | ": %s is not in decimal form.\n", buf); | |
4702 | else | |
bb8c093b | 4703 | iwl4965_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
4704 | |
4705 | return count; | |
4706 | } | |
4707 | ||
4708 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
4709 | ||
4710 | static ssize_t show_flags(struct device *d, | |
4711 | struct device_attribute *attr, char *buf) | |
4712 | { | |
c79dd5b5 | 4713 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4714 | |
4715 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); | |
4716 | } | |
4717 | ||
4718 | static ssize_t store_flags(struct device *d, | |
4719 | struct device_attribute *attr, | |
4720 | const char *buf, size_t count) | |
4721 | { | |
c79dd5b5 | 4722 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4723 | u32 flags = simple_strtoul(buf, NULL, 0); |
4724 | ||
4725 | mutex_lock(&priv->mutex); | |
4726 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { | |
4727 | /* Cancel any currently running scans... */ | |
bb8c093b | 4728 | if (iwl4965_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
4729 | IWL_WARNING("Could not cancel scan.\n"); |
4730 | else { | |
4731 | IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", | |
4732 | flags); | |
4733 | priv->staging_rxon.flags = cpu_to_le32(flags); | |
bb8c093b | 4734 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4735 | } |
4736 | } | |
4737 | mutex_unlock(&priv->mutex); | |
4738 | ||
4739 | return count; | |
4740 | } | |
4741 | ||
4742 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
4743 | ||
4744 | static ssize_t show_filter_flags(struct device *d, | |
4745 | struct device_attribute *attr, char *buf) | |
4746 | { | |
c79dd5b5 | 4747 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4748 | |
4749 | return sprintf(buf, "0x%04X\n", | |
4750 | le32_to_cpu(priv->active_rxon.filter_flags)); | |
4751 | } | |
4752 | ||
4753 | static ssize_t store_filter_flags(struct device *d, | |
4754 | struct device_attribute *attr, | |
4755 | const char *buf, size_t count) | |
4756 | { | |
c79dd5b5 | 4757 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4758 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
4759 | ||
4760 | mutex_lock(&priv->mutex); | |
4761 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { | |
4762 | /* Cancel any currently running scans... */ | |
bb8c093b | 4763 | if (iwl4965_scan_cancel_timeout(priv, 100)) |
b481de9c ZY |
4764 | IWL_WARNING("Could not cancel scan.\n"); |
4765 | else { | |
4766 | IWL_DEBUG_INFO("Committing rxon.filter_flags = " | |
4767 | "0x%04X\n", filter_flags); | |
4768 | priv->staging_rxon.filter_flags = | |
4769 | cpu_to_le32(filter_flags); | |
bb8c093b | 4770 | iwl4965_commit_rxon(priv); |
b481de9c ZY |
4771 | } |
4772 | } | |
4773 | mutex_unlock(&priv->mutex); | |
4774 | ||
4775 | return count; | |
4776 | } | |
4777 | ||
4778 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
4779 | store_filter_flags); | |
4780 | ||
c8b0e6e1 | 4781 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
4782 | |
4783 | static ssize_t show_measurement(struct device *d, | |
4784 | struct device_attribute *attr, char *buf) | |
4785 | { | |
c79dd5b5 | 4786 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 4787 | struct iwl4965_spectrum_notification measure_report; |
b481de9c ZY |
4788 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
4789 | u8 *data = (u8 *) & measure_report; | |
4790 | unsigned long flags; | |
4791 | ||
4792 | spin_lock_irqsave(&priv->lock, flags); | |
4793 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
4794 | spin_unlock_irqrestore(&priv->lock, flags); | |
4795 | return 0; | |
4796 | } | |
4797 | memcpy(&measure_report, &priv->measure_report, size); | |
4798 | priv->measurement_status = 0; | |
4799 | spin_unlock_irqrestore(&priv->lock, flags); | |
4800 | ||
4801 | while (size && (PAGE_SIZE - len)) { | |
4802 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
4803 | PAGE_SIZE - len, 1); | |
4804 | len = strlen(buf); | |
4805 | if (PAGE_SIZE - len) | |
4806 | buf[len++] = '\n'; | |
4807 | ||
4808 | ofs += 16; | |
4809 | size -= min(size, 16U); | |
4810 | } | |
4811 | ||
4812 | return len; | |
4813 | } | |
4814 | ||
4815 | static ssize_t store_measurement(struct device *d, | |
4816 | struct device_attribute *attr, | |
4817 | const char *buf, size_t count) | |
4818 | { | |
c79dd5b5 | 4819 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4820 | struct ieee80211_measurement_params params = { |
4821 | .channel = le16_to_cpu(priv->active_rxon.channel), | |
4822 | .start_time = cpu_to_le64(priv->last_tsf), | |
4823 | .duration = cpu_to_le16(1), | |
4824 | }; | |
4825 | u8 type = IWL_MEASURE_BASIC; | |
4826 | u8 buffer[32]; | |
4827 | u8 channel; | |
4828 | ||
4829 | if (count) { | |
4830 | char *p = buffer; | |
4831 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
4832 | channel = simple_strtoul(p, NULL, 0); | |
4833 | if (channel) | |
4834 | params.channel = channel; | |
4835 | ||
4836 | p = buffer; | |
4837 | while (*p && *p != ' ') | |
4838 | p++; | |
4839 | if (*p) | |
4840 | type = simple_strtoul(p + 1, NULL, 0); | |
4841 | } | |
4842 | ||
4843 | IWL_DEBUG_INFO("Invoking measurement of type %d on " | |
4844 | "channel %d (for '%s')\n", type, params.channel, buf); | |
bb8c093b | 4845 | iwl4965_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
4846 | |
4847 | return count; | |
4848 | } | |
4849 | ||
4850 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
4851 | show_measurement, store_measurement); | |
c8b0e6e1 | 4852 | #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */ |
b481de9c ZY |
4853 | |
4854 | static ssize_t store_retry_rate(struct device *d, | |
4855 | struct device_attribute *attr, | |
4856 | const char *buf, size_t count) | |
4857 | { | |
c79dd5b5 | 4858 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4859 | |
4860 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
4861 | if (priv->retry_rate <= 0) | |
4862 | priv->retry_rate = 1; | |
4863 | ||
4864 | return count; | |
4865 | } | |
4866 | ||
4867 | static ssize_t show_retry_rate(struct device *d, | |
4868 | struct device_attribute *attr, char *buf) | |
4869 | { | |
c79dd5b5 | 4870 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4871 | return sprintf(buf, "%d", priv->retry_rate); |
4872 | } | |
4873 | ||
4874 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
4875 | store_retry_rate); | |
4876 | ||
4877 | static ssize_t store_power_level(struct device *d, | |
4878 | struct device_attribute *attr, | |
4879 | const char *buf, size_t count) | |
4880 | { | |
c79dd5b5 | 4881 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4882 | int rc; |
4883 | int mode; | |
4884 | ||
4885 | mode = simple_strtoul(buf, NULL, 0); | |
4886 | mutex_lock(&priv->mutex); | |
4887 | ||
fee1247a | 4888 | if (!iwl_is_ready(priv)) { |
b481de9c ZY |
4889 | rc = -EAGAIN; |
4890 | goto out; | |
4891 | } | |
4892 | ||
5da4b55f MA |
4893 | rc = iwl_power_set_user_mode(priv, mode); |
4894 | if (rc) { | |
4895 | IWL_DEBUG_MAC80211("failed setting power mode.\n"); | |
4896 | goto out; | |
b481de9c | 4897 | } |
b481de9c ZY |
4898 | rc = count; |
4899 | ||
4900 | out: | |
4901 | mutex_unlock(&priv->mutex); | |
4902 | return rc; | |
4903 | } | |
4904 | ||
4905 | #define MAX_WX_STRING 80 | |
4906 | ||
4907 | /* Values are in microsecond */ | |
4908 | static const s32 timeout_duration[] = { | |
4909 | 350000, | |
4910 | 250000, | |
4911 | 75000, | |
4912 | 37000, | |
4913 | 25000, | |
4914 | }; | |
4915 | static const s32 period_duration[] = { | |
4916 | 400000, | |
4917 | 700000, | |
4918 | 1000000, | |
4919 | 1000000, | |
4920 | 1000000 | |
4921 | }; | |
4922 | ||
4923 | static ssize_t show_power_level(struct device *d, | |
4924 | struct device_attribute *attr, char *buf) | |
4925 | { | |
c79dd5b5 | 4926 | struct iwl_priv *priv = dev_get_drvdata(d); |
5da4b55f | 4927 | int level = priv->power_data.power_mode; |
b481de9c ZY |
4928 | char *p = buf; |
4929 | ||
4930 | p += sprintf(p, "%d ", level); | |
4931 | switch (level) { | |
4932 | case IWL_POWER_MODE_CAM: | |
4933 | case IWL_POWER_AC: | |
4934 | p += sprintf(p, "(AC)"); | |
4935 | break; | |
4936 | case IWL_POWER_BATTERY: | |
4937 | p += sprintf(p, "(BATTERY)"); | |
4938 | break; | |
4939 | default: | |
4940 | p += sprintf(p, | |
4941 | "(Timeout %dms, Period %dms)", | |
4942 | timeout_duration[level - 1] / 1000, | |
4943 | period_duration[level - 1] / 1000); | |
4944 | } | |
5da4b55f | 4945 | /* |
b481de9c ZY |
4946 | if (!(priv->power_mode & IWL_POWER_ENABLED)) |
4947 | p += sprintf(p, " OFF\n"); | |
4948 | else | |
4949 | p += sprintf(p, " \n"); | |
5da4b55f MA |
4950 | */ |
4951 | p += sprintf(p, " \n"); | |
b481de9c | 4952 | return (p - buf + 1); |
b481de9c ZY |
4953 | } |
4954 | ||
4955 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, | |
4956 | store_power_level); | |
4957 | ||
4958 | static ssize_t show_channels(struct device *d, | |
4959 | struct device_attribute *attr, char *buf) | |
4960 | { | |
8318d78a JB |
4961 | /* all this shit doesn't belong into sysfs anyway */ |
4962 | return 0; | |
b481de9c ZY |
4963 | } |
4964 | ||
4965 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
4966 | ||
4967 | static ssize_t show_statistics(struct device *d, | |
4968 | struct device_attribute *attr, char *buf) | |
4969 | { | |
c79dd5b5 | 4970 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 4971 | u32 size = sizeof(struct iwl4965_notif_statistics); |
b481de9c ZY |
4972 | u32 len = 0, ofs = 0; |
4973 | u8 *data = (u8 *) & priv->statistics; | |
4974 | int rc = 0; | |
4975 | ||
fee1247a | 4976 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4977 | return -EAGAIN; |
4978 | ||
4979 | mutex_lock(&priv->mutex); | |
49ea8596 | 4980 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
4981 | mutex_unlock(&priv->mutex); |
4982 | ||
4983 | if (rc) { | |
4984 | len = sprintf(buf, | |
4985 | "Error sending statistics request: 0x%08X\n", rc); | |
4986 | return len; | |
4987 | } | |
4988 | ||
4989 | while (size && (PAGE_SIZE - len)) { | |
4990 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
4991 | PAGE_SIZE - len, 1); | |
4992 | len = strlen(buf); | |
4993 | if (PAGE_SIZE - len) | |
4994 | buf[len++] = '\n'; | |
4995 | ||
4996 | ofs += 16; | |
4997 | size -= min(size, 16U); | |
4998 | } | |
4999 | ||
5000 | return len; | |
5001 | } | |
5002 | ||
5003 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
5004 | ||
b481de9c ZY |
5005 | static ssize_t show_status(struct device *d, |
5006 | struct device_attribute *attr, char *buf) | |
5007 | { | |
c79dd5b5 | 5008 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
fee1247a | 5009 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
5010 | return -EAGAIN; |
5011 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
5012 | } | |
5013 | ||
5014 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
5015 | ||
b481de9c ZY |
5016 | /***************************************************************************** |
5017 | * | |
5018 | * driver setup and teardown | |
5019 | * | |
5020 | *****************************************************************************/ | |
5021 | ||
c79dd5b5 | 5022 | static void iwl4965_setup_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
5023 | { |
5024 | priv->workqueue = create_workqueue(DRV_NAME); | |
5025 | ||
5026 | init_waitqueue_head(&priv->wait_command_queue); | |
5027 | ||
bb8c093b CH |
5028 | INIT_WORK(&priv->up, iwl4965_bg_up); |
5029 | INIT_WORK(&priv->restart, iwl4965_bg_restart); | |
5030 | INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish); | |
5031 | INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed); | |
5032 | INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan); | |
5033 | INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan); | |
5034 | INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill); | |
5035 | INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update); | |
4419e39b | 5036 | INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor); |
bb8c093b | 5037 | INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate); |
4a4a9e81 TW |
5038 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); |
5039 | INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); | |
bb8c093b CH |
5040 | INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check); |
5041 | ||
5042 | iwl4965_hw_setup_deferred_work(priv); | |
b481de9c ZY |
5043 | |
5044 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 5045 | iwl4965_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
5046 | } |
5047 | ||
c79dd5b5 | 5048 | static void iwl4965_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 5049 | { |
bb8c093b | 5050 | iwl4965_hw_cancel_deferred_work(priv); |
b481de9c | 5051 | |
3ae6a054 | 5052 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
5053 | cancel_delayed_work(&priv->scan_check); |
5054 | cancel_delayed_work(&priv->alive_start); | |
5055 | cancel_delayed_work(&priv->post_associate); | |
5056 | cancel_work_sync(&priv->beacon_update); | |
5057 | } | |
5058 | ||
bb8c093b | 5059 | static struct attribute *iwl4965_sysfs_entries[] = { |
b481de9c | 5060 | &dev_attr_channels.attr, |
b481de9c ZY |
5061 | &dev_attr_flags.attr, |
5062 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 5063 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
b481de9c ZY |
5064 | &dev_attr_measurement.attr, |
5065 | #endif | |
5066 | &dev_attr_power_level.attr, | |
5067 | &dev_attr_retry_rate.attr, | |
b481de9c ZY |
5068 | &dev_attr_rs_window.attr, |
5069 | &dev_attr_statistics.attr, | |
5070 | &dev_attr_status.attr, | |
5071 | &dev_attr_temperature.attr, | |
b481de9c | 5072 | &dev_attr_tx_power.attr, |
8cf769c6 EK |
5073 | #ifdef CONFIG_IWLWIFI_DEBUG |
5074 | &dev_attr_debug_level.attr, | |
5075 | #endif | |
bc6f59bc | 5076 | &dev_attr_version.attr, |
b481de9c ZY |
5077 | |
5078 | NULL | |
5079 | }; | |
5080 | ||
bb8c093b | 5081 | static struct attribute_group iwl4965_attribute_group = { |
b481de9c | 5082 | .name = NULL, /* put in device directory */ |
bb8c093b | 5083 | .attrs = iwl4965_sysfs_entries, |
b481de9c ZY |
5084 | }; |
5085 | ||
bb8c093b CH |
5086 | static struct ieee80211_ops iwl4965_hw_ops = { |
5087 | .tx = iwl4965_mac_tx, | |
5088 | .start = iwl4965_mac_start, | |
5089 | .stop = iwl4965_mac_stop, | |
5090 | .add_interface = iwl4965_mac_add_interface, | |
5091 | .remove_interface = iwl4965_mac_remove_interface, | |
5092 | .config = iwl4965_mac_config, | |
5093 | .config_interface = iwl4965_mac_config_interface, | |
5094 | .configure_filter = iwl4965_configure_filter, | |
5095 | .set_key = iwl4965_mac_set_key, | |
ab885f8c | 5096 | .update_tkip_key = iwl4965_mac_update_tkip_key, |
bb8c093b CH |
5097 | .get_stats = iwl4965_mac_get_stats, |
5098 | .get_tx_stats = iwl4965_mac_get_tx_stats, | |
5099 | .conf_tx = iwl4965_mac_conf_tx, | |
5100 | .get_tsf = iwl4965_mac_get_tsf, | |
5101 | .reset_tsf = iwl4965_mac_reset_tsf, | |
5102 | .beacon_update = iwl4965_mac_beacon_update, | |
471b3efd | 5103 | .bss_info_changed = iwl4965_bss_info_changed, |
c8b0e6e1 | 5104 | #ifdef CONFIG_IWL4965_HT |
9ab46173 | 5105 | .ampdu_action = iwl4965_mac_ampdu_action, |
c8b0e6e1 | 5106 | #endif /* CONFIG_IWL4965_HT */ |
bb8c093b | 5107 | .hw_scan = iwl4965_mac_hw_scan |
b481de9c ZY |
5108 | }; |
5109 | ||
bb8c093b | 5110 | static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
5111 | { |
5112 | int err = 0; | |
c79dd5b5 | 5113 | struct iwl_priv *priv; |
b481de9c | 5114 | struct ieee80211_hw *hw; |
82b9a121 | 5115 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
0359facc | 5116 | unsigned long flags; |
5a66926a | 5117 | DECLARE_MAC_BUF(mac); |
b481de9c | 5118 | |
316c30d9 AK |
5119 | /************************ |
5120 | * 1. Allocating HW data | |
5121 | ************************/ | |
5122 | ||
6440adb5 CB |
5123 | /* Disabling hardware scan means that mac80211 will perform scans |
5124 | * "the hard way", rather than using device's scan. */ | |
1ea87396 | 5125 | if (cfg->mod_params->disable_hw_scan) { |
bf403db8 EK |
5126 | if (cfg->mod_params->debug & IWL_DL_INFO) |
5127 | dev_printk(KERN_DEBUG, &(pdev->dev), | |
5128 | "Disabling hw_scan\n"); | |
bb8c093b | 5129 | iwl4965_hw_ops.hw_scan = NULL; |
b481de9c ZY |
5130 | } |
5131 | ||
1d0a082d AK |
5132 | hw = iwl_alloc_all(cfg, &iwl4965_hw_ops); |
5133 | if (!hw) { | |
b481de9c ZY |
5134 | err = -ENOMEM; |
5135 | goto out; | |
5136 | } | |
1d0a082d AK |
5137 | priv = hw->priv; |
5138 | /* At this point both hw and priv are allocated. */ | |
5139 | ||
b481de9c ZY |
5140 | SET_IEEE80211_DEV(hw, &pdev->dev); |
5141 | ||
5142 | IWL_DEBUG_INFO("*** LOAD DRIVER ***\n"); | |
82b9a121 | 5143 | priv->cfg = cfg; |
b481de9c | 5144 | priv->pci_dev = pdev; |
316c30d9 | 5145 | |
0a6857e7 | 5146 | #ifdef CONFIG_IWLWIFI_DEBUG |
bf403db8 | 5147 | priv->debug_level = priv->cfg->mod_params->debug; |
b481de9c ZY |
5148 | atomic_set(&priv->restrict_refcnt, 0); |
5149 | #endif | |
b481de9c | 5150 | |
316c30d9 AK |
5151 | /************************** |
5152 | * 2. Initializing PCI bus | |
5153 | **************************/ | |
5154 | if (pci_enable_device(pdev)) { | |
5155 | err = -ENODEV; | |
5156 | goto out_ieee80211_free_hw; | |
5157 | } | |
5158 | ||
5159 | pci_set_master(pdev); | |
5160 | ||
cc2a8ea8 | 5161 | err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
316c30d9 | 5162 | if (!err) |
cc2a8ea8 RR |
5163 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
5164 | if (err) { | |
5165 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
5166 | if (!err) | |
5167 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
5168 | /* both attempts failed: */ | |
316c30d9 | 5169 | if (err) { |
cc2a8ea8 RR |
5170 | printk(KERN_WARNING "%s: No suitable DMA available.\n", |
5171 | DRV_NAME); | |
316c30d9 | 5172 | goto out_pci_disable_device; |
cc2a8ea8 | 5173 | } |
316c30d9 AK |
5174 | } |
5175 | ||
5176 | err = pci_request_regions(pdev, DRV_NAME); | |
5177 | if (err) | |
5178 | goto out_pci_disable_device; | |
5179 | ||
5180 | pci_set_drvdata(pdev, priv); | |
5181 | ||
5182 | /* We disable the RETRY_TIMEOUT register (0x41) to keep | |
5183 | * PCI Tx retries from interfering with C3 CPU state */ | |
5184 | pci_write_config_byte(pdev, 0x41, 0x00); | |
5185 | ||
5186 | /*********************** | |
5187 | * 3. Read REV register | |
5188 | ***********************/ | |
5189 | priv->hw_base = pci_iomap(pdev, 0, 0); | |
5190 | if (!priv->hw_base) { | |
5191 | err = -ENODEV; | |
5192 | goto out_pci_release_regions; | |
5193 | } | |
5194 | ||
5195 | IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n", | |
5196 | (unsigned long long) pci_resource_len(pdev, 0)); | |
5197 | IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base); | |
5198 | ||
b661c819 | 5199 | iwl_hw_detect(priv); |
316c30d9 | 5200 | printk(KERN_INFO DRV_NAME |
b661c819 TW |
5201 | ": Detected Intel Wireless WiFi Link %s REV=0x%X\n", |
5202 | priv->cfg->name, priv->hw_rev); | |
316c30d9 | 5203 | |
91238714 TW |
5204 | /* amp init */ |
5205 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
316c30d9 | 5206 | if (err < 0) { |
91238714 | 5207 | IWL_DEBUG_INFO("Failed to init APMG\n"); |
316c30d9 AK |
5208 | goto out_iounmap; |
5209 | } | |
91238714 TW |
5210 | /***************** |
5211 | * 4. Read EEPROM | |
5212 | *****************/ | |
316c30d9 AK |
5213 | /* Read the EEPROM */ |
5214 | err = iwl_eeprom_init(priv); | |
5215 | if (err) { | |
5216 | IWL_ERROR("Unable to init EEPROM\n"); | |
5217 | goto out_iounmap; | |
5218 | } | |
8614f360 TW |
5219 | err = iwl_eeprom_check_version(priv); |
5220 | if (err) | |
5221 | goto out_iounmap; | |
5222 | ||
02883017 | 5223 | /* extract MAC Address */ |
316c30d9 AK |
5224 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
5225 | IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr)); | |
5226 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
5227 | ||
5228 | /************************ | |
5229 | * 5. Setup HW constants | |
5230 | ************************/ | |
5231 | /* Device-specific setup */ | |
5425e490 TW |
5232 | if (priv->cfg->ops->lib->set_hw_params(priv)) { |
5233 | IWL_ERROR("failed to set hw parameters\n"); | |
073d3f5f | 5234 | goto out_free_eeprom; |
316c30d9 AK |
5235 | } |
5236 | ||
5237 | /******************* | |
6ba87956 | 5238 | * 6. Setup priv |
316c30d9 | 5239 | *******************/ |
b481de9c | 5240 | |
6ba87956 | 5241 | err = iwl_init_drv(priv); |
bf85ea4f | 5242 | if (err) |
399f4900 | 5243 | goto out_free_eeprom; |
bf85ea4f | 5244 | /* At this point both hw and priv are initialized. */ |
316c30d9 AK |
5245 | |
5246 | /********************************** | |
5247 | * 7. Initialize module parameters | |
5248 | **********************************/ | |
5249 | ||
5250 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
1ea87396 | 5251 | if (priv->cfg->mod_params->disable) { |
316c30d9 AK |
5252 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
5253 | IWL_DEBUG_INFO("Radio disabled.\n"); | |
5254 | } | |
5255 | ||
316c30d9 AK |
5256 | /******************** |
5257 | * 8. Setup services | |
5258 | ********************/ | |
0359facc | 5259 | spin_lock_irqsave(&priv->lock, flags); |
316c30d9 | 5260 | iwl4965_disable_interrupts(priv); |
0359facc | 5261 | spin_unlock_irqrestore(&priv->lock, flags); |
316c30d9 AK |
5262 | |
5263 | err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
5264 | if (err) { | |
5265 | IWL_ERROR("failed to create sysfs device attributes\n"); | |
6ba87956 | 5266 | goto out_uninit_drv; |
316c30d9 AK |
5267 | } |
5268 | ||
316c30d9 AK |
5269 | |
5270 | iwl4965_setup_deferred_work(priv); | |
5271 | iwl4965_setup_rx_handlers(priv); | |
5272 | ||
5273 | /******************** | |
5274 | * 9. Conclude | |
5275 | ********************/ | |
5a66926a ZY |
5276 | pci_save_state(pdev); |
5277 | pci_disable_device(pdev); | |
b481de9c | 5278 | |
6ba87956 TW |
5279 | /********************************** |
5280 | * 10. Setup and register mac80211 | |
5281 | **********************************/ | |
5282 | ||
5283 | err = iwl_setup_mac(priv); | |
5284 | if (err) | |
5285 | goto out_remove_sysfs; | |
5286 | ||
5287 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
5288 | if (err) | |
5289 | IWL_ERROR("failed to create debugfs files\n"); | |
5290 | ||
c8381fdc MA |
5291 | /* notify iwlcore to init */ |
5292 | iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT); | |
b481de9c ZY |
5293 | return 0; |
5294 | ||
316c30d9 AK |
5295 | out_remove_sysfs: |
5296 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
6ba87956 TW |
5297 | out_uninit_drv: |
5298 | iwl_uninit_drv(priv); | |
073d3f5f TW |
5299 | out_free_eeprom: |
5300 | iwl_eeprom_free(priv); | |
b481de9c ZY |
5301 | out_iounmap: |
5302 | pci_iounmap(pdev, priv->hw_base); | |
5303 | out_pci_release_regions: | |
5304 | pci_release_regions(pdev); | |
316c30d9 | 5305 | pci_set_drvdata(pdev, NULL); |
b481de9c ZY |
5306 | out_pci_disable_device: |
5307 | pci_disable_device(pdev); | |
b481de9c ZY |
5308 | out_ieee80211_free_hw: |
5309 | ieee80211_free_hw(priv->hw); | |
5310 | out: | |
5311 | return err; | |
5312 | } | |
5313 | ||
c83dbf68 | 5314 | static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) |
b481de9c | 5315 | { |
c79dd5b5 | 5316 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c ZY |
5317 | struct list_head *p, *q; |
5318 | int i; | |
0359facc | 5319 | unsigned long flags; |
b481de9c ZY |
5320 | |
5321 | if (!priv) | |
5322 | return; | |
5323 | ||
5324 | IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); | |
5325 | ||
67249625 EG |
5326 | iwl_dbgfs_unregister(priv); |
5327 | sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); | |
5328 | ||
c4f55232 RR |
5329 | if (priv->mac80211_registered) { |
5330 | ieee80211_unregister_hw(priv->hw); | |
5331 | priv->mac80211_registered = 0; | |
5332 | } | |
5333 | ||
b481de9c | 5334 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 5335 | |
bb8c093b | 5336 | iwl4965_down(priv); |
b481de9c | 5337 | |
0359facc MA |
5338 | /* make sure we flush any pending irq or |
5339 | * tasklet for the driver | |
5340 | */ | |
5341 | spin_lock_irqsave(&priv->lock, flags); | |
5342 | iwl4965_disable_interrupts(priv); | |
5343 | spin_unlock_irqrestore(&priv->lock, flags); | |
5344 | ||
5345 | iwl_synchronize_irq(priv); | |
5346 | ||
b481de9c ZY |
5347 | /* Free MAC hash list for ADHOC */ |
5348 | for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) { | |
5349 | list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { | |
5350 | list_del(p); | |
bb8c093b | 5351 | kfree(list_entry(p, struct iwl4965_ibss_seq, list)); |
b481de9c ZY |
5352 | } |
5353 | } | |
5354 | ||
c8381fdc | 5355 | iwlcore_low_level_notify(priv, IWLCORE_REMOVE_EVT); |
b481de9c | 5356 | |
bb8c093b | 5357 | iwl4965_dealloc_ucode_pci(priv); |
b481de9c ZY |
5358 | |
5359 | if (priv->rxq.bd) | |
a55360e4 | 5360 | iwl_rx_queue_free(priv, &priv->rxq); |
1053d35f | 5361 | iwl_hw_txq_ctx_free(priv); |
b481de9c | 5362 | |
bf85ea4f | 5363 | iwlcore_clear_stations_table(priv); |
073d3f5f | 5364 | iwl_eeprom_free(priv); |
b481de9c | 5365 | |
b481de9c | 5366 | |
948c171c MA |
5367 | /*netif_stop_queue(dev); */ |
5368 | flush_workqueue(priv->workqueue); | |
5369 | ||
bb8c093b | 5370 | /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes |
b481de9c ZY |
5371 | * priv->workqueue... so we can't take down the workqueue |
5372 | * until now... */ | |
5373 | destroy_workqueue(priv->workqueue); | |
5374 | priv->workqueue = NULL; | |
5375 | ||
b481de9c ZY |
5376 | pci_iounmap(pdev, priv->hw_base); |
5377 | pci_release_regions(pdev); | |
5378 | pci_disable_device(pdev); | |
5379 | pci_set_drvdata(pdev, NULL); | |
5380 | ||
6ba87956 | 5381 | iwl_uninit_drv(priv); |
b481de9c ZY |
5382 | |
5383 | if (priv->ibss_beacon) | |
5384 | dev_kfree_skb(priv->ibss_beacon); | |
5385 | ||
5386 | ieee80211_free_hw(priv->hw); | |
5387 | } | |
5388 | ||
5389 | #ifdef CONFIG_PM | |
5390 | ||
bb8c093b | 5391 | static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 5392 | { |
c79dd5b5 | 5393 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 5394 | |
e655b9f0 ZY |
5395 | if (priv->is_open) { |
5396 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
5397 | iwl4965_mac_stop(priv->hw); | |
5398 | priv->is_open = 1; | |
5399 | } | |
b481de9c | 5400 | |
b481de9c ZY |
5401 | pci_set_power_state(pdev, PCI_D3hot); |
5402 | ||
b481de9c ZY |
5403 | return 0; |
5404 | } | |
5405 | ||
bb8c093b | 5406 | static int iwl4965_pci_resume(struct pci_dev *pdev) |
b481de9c | 5407 | { |
c79dd5b5 | 5408 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 5409 | |
b481de9c | 5410 | pci_set_power_state(pdev, PCI_D0); |
b481de9c | 5411 | |
e655b9f0 ZY |
5412 | if (priv->is_open) |
5413 | iwl4965_mac_start(priv->hw); | |
b481de9c | 5414 | |
e655b9f0 | 5415 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
5416 | return 0; |
5417 | } | |
5418 | ||
5419 | #endif /* CONFIG_PM */ | |
5420 | ||
5421 | /***************************************************************************** | |
5422 | * | |
5423 | * driver and module entry point | |
5424 | * | |
5425 | *****************************************************************************/ | |
5426 | ||
fed9017e RR |
5427 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
5428 | static struct pci_device_id iwl_hw_card_ids[] = { | |
5429 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
5430 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
5a6a256e TW |
5431 | #ifdef CONFIG_IWL5000 |
5432 | {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, | |
5433 | {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, | |
5434 | {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)}, | |
5435 | #endif /* CONFIG_IWL5000 */ | |
fed9017e RR |
5436 | {0} |
5437 | }; | |
5438 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); | |
5439 | ||
5440 | static struct pci_driver iwl_driver = { | |
b481de9c | 5441 | .name = DRV_NAME, |
fed9017e | 5442 | .id_table = iwl_hw_card_ids, |
bb8c093b CH |
5443 | .probe = iwl4965_pci_probe, |
5444 | .remove = __devexit_p(iwl4965_pci_remove), | |
b481de9c | 5445 | #ifdef CONFIG_PM |
bb8c093b CH |
5446 | .suspend = iwl4965_pci_suspend, |
5447 | .resume = iwl4965_pci_resume, | |
b481de9c ZY |
5448 | #endif |
5449 | }; | |
5450 | ||
bb8c093b | 5451 | static int __init iwl4965_init(void) |
b481de9c ZY |
5452 | { |
5453 | ||
5454 | int ret; | |
5455 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
5456 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
5457 | |
5458 | ret = iwl4965_rate_control_register(); | |
5459 | if (ret) { | |
5460 | IWL_ERROR("Unable to register rate control algorithm: %d\n", ret); | |
5461 | return ret; | |
5462 | } | |
5463 | ||
fed9017e | 5464 | ret = pci_register_driver(&iwl_driver); |
b481de9c ZY |
5465 | if (ret) { |
5466 | IWL_ERROR("Unable to initialize PCI module\n"); | |
897e1cf2 | 5467 | goto error_register; |
b481de9c | 5468 | } |
b481de9c ZY |
5469 | |
5470 | return ret; | |
897e1cf2 | 5471 | |
897e1cf2 RC |
5472 | error_register: |
5473 | iwl4965_rate_control_unregister(); | |
5474 | return ret; | |
b481de9c ZY |
5475 | } |
5476 | ||
bb8c093b | 5477 | static void __exit iwl4965_exit(void) |
b481de9c | 5478 | { |
fed9017e | 5479 | pci_unregister_driver(&iwl_driver); |
897e1cf2 | 5480 | iwl4965_rate_control_unregister(); |
b481de9c ZY |
5481 | } |
5482 | ||
bb8c093b CH |
5483 | module_exit(iwl4965_exit); |
5484 | module_init(iwl4965_init); |