Commit | Line | Data |
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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
1f447808 | 3 | * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
b481de9c ZY |
32 | #include <linux/init.h> |
33 | #include <linux/pci.h> | |
34 | #include <linux/dma-mapping.h> | |
35 | #include <linux/delay.h> | |
d43c36dc | 36 | #include <linux/sched.h> |
b481de9c ZY |
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 | ||
a3139c59 SO |
48 | #define DRV_NAME "iwlagn" |
49 | ||
6bc913bd | 50 | #include "iwl-eeprom.h" |
3e0d4cb1 | 51 | #include "iwl-dev.h" |
fee1247a | 52 | #include "iwl-core.h" |
3395f6e9 | 53 | #include "iwl-io.h" |
b481de9c | 54 | #include "iwl-helpers.h" |
6974e363 | 55 | #include "iwl-sta.h" |
f0832f13 | 56 | #include "iwl-calib.h" |
a1175124 | 57 | #include "iwl-agn.h" |
b481de9c | 58 | |
416e1438 | 59 | |
b481de9c ZY |
60 | /****************************************************************************** |
61 | * | |
62 | * module boiler plate | |
63 | * | |
64 | ******************************************************************************/ | |
65 | ||
b481de9c ZY |
66 | /* |
67 | * module name, copyright, version, etc. | |
b481de9c | 68 | */ |
d783b061 | 69 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
b481de9c | 70 | |
0a6857e7 | 71 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
72 | #define VD "d" |
73 | #else | |
74 | #define VD | |
75 | #endif | |
76 | ||
81963d68 | 77 | #define DRV_VERSION IWLWIFI_VERSION VD |
b481de9c | 78 | |
b481de9c ZY |
79 | |
80 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
81 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 82 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c | 83 | MODULE_LICENSE("GPL"); |
4fc22b21 | 84 | MODULE_ALIAS("iwl4965"); |
b481de9c | 85 | |
b481de9c | 86 | /*************** STATION TABLE MANAGEMENT **** |
9fbab516 | 87 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
88 | * the functionality provided here |
89 | */ | |
90 | ||
91 | /**************************************************************/ | |
92 | ||
b481de9c | 93 | /** |
5b9f8cd3 | 94 | * iwl_commit_rxon - commit staging_rxon to hardware |
b481de9c | 95 | * |
01ebd063 | 96 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
97 | * the active_rxon structure is updated with the new data. This |
98 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
99 | * a HW tune is required based on the RXON structure changes. | |
100 | */ | |
e0158e61 | 101 | int iwl_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
102 | { |
103 | /* cast away the const for active_rxon in this function */ | |
c1adf9fb | 104 | struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
43d59b32 EG |
105 | int ret; |
106 | bool new_assoc = | |
107 | !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK); | |
b481de9c | 108 | |
fee1247a | 109 | if (!iwl_is_alive(priv)) |
43d59b32 | 110 | return -EBUSY; |
b481de9c ZY |
111 | |
112 | /* always get timestamp with Rx frame */ | |
113 | priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; | |
114 | ||
8ccde88a | 115 | ret = iwl_check_rxon_cmd(priv); |
43d59b32 | 116 | if (ret) { |
15b1687c | 117 | IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); |
b481de9c ZY |
118 | return -EINVAL; |
119 | } | |
120 | ||
0924e519 WYG |
121 | /* |
122 | * receive commit_rxon request | |
123 | * abort any previous channel switch if still in process | |
124 | */ | |
125 | if (priv->switch_rxon.switch_in_progress && | |
126 | (priv->switch_rxon.channel != priv->staging_rxon.channel)) { | |
127 | IWL_DEBUG_11H(priv, "abort channel switch on %d\n", | |
128 | le16_to_cpu(priv->switch_rxon.channel)); | |
129 | priv->switch_rxon.switch_in_progress = false; | |
130 | } | |
131 | ||
b481de9c | 132 | /* If we don't need to send a full RXON, we can use |
5b9f8cd3 | 133 | * iwl_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 134 | * and other flags for the current radio configuration. */ |
54559703 | 135 | if (!iwl_full_rxon_required(priv)) { |
43d59b32 EG |
136 | ret = iwl_send_rxon_assoc(priv); |
137 | if (ret) { | |
15b1687c | 138 | IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret); |
43d59b32 | 139 | return ret; |
b481de9c ZY |
140 | } |
141 | ||
142 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
a643565e | 143 | iwl_print_rx_config_cmd(priv); |
b481de9c ZY |
144 | return 0; |
145 | } | |
146 | ||
b481de9c ZY |
147 | /* If we are currently associated and the new config requires |
148 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
149 | * we must clear the associated from the active configuration | |
150 | * before we apply the new config */ | |
43d59b32 | 151 | if (iwl_is_associated(priv) && new_assoc) { |
e1623446 | 152 | IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n"); |
b481de9c ZY |
153 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
154 | ||
43d59b32 | 155 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, |
c1adf9fb | 156 | sizeof(struct iwl_rxon_cmd), |
b481de9c ZY |
157 | &priv->active_rxon); |
158 | ||
159 | /* If the mask clearing failed then we set | |
160 | * active_rxon back to what it was previously */ | |
43d59b32 | 161 | if (ret) { |
b481de9c | 162 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; |
15b1687c | 163 | IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret); |
43d59b32 | 164 | return ret; |
b481de9c | 165 | } |
7e246191 RC |
166 | iwl_clear_ucode_stations(priv, false); |
167 | iwl_restore_stations(priv); | |
b481de9c ZY |
168 | } |
169 | ||
e1623446 | 170 | IWL_DEBUG_INFO(priv, "Sending RXON\n" |
b481de9c ZY |
171 | "* with%s RXON_FILTER_ASSOC_MSK\n" |
172 | "* channel = %d\n" | |
e174961c | 173 | "* bssid = %pM\n", |
43d59b32 | 174 | (new_assoc ? "" : "out"), |
b481de9c | 175 | le16_to_cpu(priv->staging_rxon.channel), |
e174961c | 176 | priv->staging_rxon.bssid_addr); |
b481de9c | 177 | |
90e8e424 | 178 | iwl_set_rxon_hwcrypto(priv, !priv->cfg->mod_params->sw_crypto); |
43d59b32 EG |
179 | |
180 | /* Apply the new configuration | |
7e246191 RC |
181 | * RXON unassoc clears the station table in uCode so restoration of |
182 | * stations is needed after it (the RXON command) completes | |
43d59b32 EG |
183 | */ |
184 | if (!new_assoc) { | |
185 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
c1adf9fb | 186 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); |
43d59b32 | 187 | if (ret) { |
15b1687c | 188 | IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); |
43d59b32 EG |
189 | return ret; |
190 | } | |
7e246191 | 191 | IWL_DEBUG_INFO(priv, "Return from !new_assoc RXON. \n"); |
43d59b32 | 192 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); |
7e246191 RC |
193 | iwl_clear_ucode_stations(priv, false); |
194 | iwl_restore_stations(priv); | |
b481de9c ZY |
195 | } |
196 | ||
19cc1087 | 197 | priv->start_calib = 0; |
9185159d | 198 | if (new_assoc) { |
47eef9bd WYG |
199 | /* |
200 | * allow CTS-to-self if possible for new association. | |
201 | * this is relevant only for 5000 series and up, | |
202 | * but will not damage 4965 | |
203 | */ | |
204 | priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN; | |
205 | ||
43d59b32 EG |
206 | /* Apply the new configuration |
207 | * RXON assoc doesn't clear the station table in uCode, | |
208 | */ | |
209 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON, | |
210 | sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); | |
211 | if (ret) { | |
15b1687c | 212 | IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); |
43d59b32 EG |
213 | return ret; |
214 | } | |
215 | memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); | |
b481de9c | 216 | } |
a643565e | 217 | iwl_print_rx_config_cmd(priv); |
b481de9c | 218 | |
36da7d70 ZY |
219 | iwl_init_sensitivity(priv); |
220 | ||
221 | /* If we issue a new RXON command which required a tune then we must | |
222 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
223 | ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); | |
224 | if (ret) { | |
15b1687c | 225 | IWL_ERR(priv, "Error sending TX power (%d)\n", ret); |
36da7d70 ZY |
226 | return ret; |
227 | } | |
228 | ||
b481de9c ZY |
229 | return 0; |
230 | } | |
231 | ||
5b9f8cd3 | 232 | void iwl_update_chain_flags(struct iwl_priv *priv) |
5da4b55f MA |
233 | { |
234 | ||
45823531 AK |
235 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
236 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
e0158e61 | 237 | iwlcore_commit_rxon(priv); |
5da4b55f MA |
238 | } |
239 | ||
fcab423d | 240 | static void iwl_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
241 | { |
242 | struct list_head *element; | |
243 | ||
e1623446 | 244 | IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", |
b481de9c ZY |
245 | priv->frames_count); |
246 | ||
247 | while (!list_empty(&priv->free_frames)) { | |
248 | element = priv->free_frames.next; | |
249 | list_del(element); | |
fcab423d | 250 | kfree(list_entry(element, struct iwl_frame, list)); |
b481de9c ZY |
251 | priv->frames_count--; |
252 | } | |
253 | ||
254 | if (priv->frames_count) { | |
39aadf8c | 255 | IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", |
b481de9c ZY |
256 | priv->frames_count); |
257 | priv->frames_count = 0; | |
258 | } | |
259 | } | |
260 | ||
fcab423d | 261 | static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) |
b481de9c | 262 | { |
fcab423d | 263 | struct iwl_frame *frame; |
b481de9c ZY |
264 | struct list_head *element; |
265 | if (list_empty(&priv->free_frames)) { | |
266 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
267 | if (!frame) { | |
15b1687c | 268 | IWL_ERR(priv, "Could not allocate frame!\n"); |
b481de9c ZY |
269 | return NULL; |
270 | } | |
271 | ||
272 | priv->frames_count++; | |
273 | return frame; | |
274 | } | |
275 | ||
276 | element = priv->free_frames.next; | |
277 | list_del(element); | |
fcab423d | 278 | return list_entry(element, struct iwl_frame, list); |
b481de9c ZY |
279 | } |
280 | ||
fcab423d | 281 | static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) |
b481de9c ZY |
282 | { |
283 | memset(frame, 0, sizeof(*frame)); | |
284 | list_add(&frame->list, &priv->free_frames); | |
285 | } | |
286 | ||
47ff65c4 | 287 | static u32 iwl_fill_beacon_frame(struct iwl_priv *priv, |
4bf64efd | 288 | struct ieee80211_hdr *hdr, |
73ec1cc2 | 289 | int left) |
b481de9c | 290 | { |
3109ece1 | 291 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
292 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
293 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
294 | return 0; |
295 | ||
296 | if (priv->ibss_beacon->len > left) | |
297 | return 0; | |
298 | ||
299 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
300 | ||
301 | return priv->ibss_beacon->len; | |
302 | } | |
303 | ||
47ff65c4 DH |
304 | /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ |
305 | static void iwl_set_beacon_tim(struct iwl_priv *priv, | |
306 | struct iwl_tx_beacon_cmd *tx_beacon_cmd, | |
307 | u8 *beacon, u32 frame_size) | |
308 | { | |
309 | u16 tim_idx; | |
310 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; | |
311 | ||
312 | /* | |
313 | * The index is relative to frame start but we start looking at the | |
314 | * variable-length part of the beacon. | |
315 | */ | |
316 | tim_idx = mgmt->u.beacon.variable - beacon; | |
317 | ||
318 | /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ | |
319 | while ((tim_idx < (frame_size - 2)) && | |
320 | (beacon[tim_idx] != WLAN_EID_TIM)) | |
321 | tim_idx += beacon[tim_idx+1] + 2; | |
322 | ||
323 | /* If TIM field was found, set variables */ | |
324 | if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { | |
325 | tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); | |
326 | tx_beacon_cmd->tim_size = beacon[tim_idx+1]; | |
327 | } else | |
328 | IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); | |
329 | } | |
330 | ||
5b9f8cd3 | 331 | static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, |
47ff65c4 | 332 | struct iwl_frame *frame) |
4bf64efd TW |
333 | { |
334 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; | |
47ff65c4 DH |
335 | u32 frame_size; |
336 | u32 rate_flags; | |
337 | u32 rate; | |
338 | /* | |
339 | * We have to set up the TX command, the TX Beacon command, and the | |
340 | * beacon contents. | |
341 | */ | |
4bf64efd | 342 | |
47ff65c4 | 343 | /* Initialize memory */ |
4bf64efd TW |
344 | tx_beacon_cmd = &frame->u.beacon; |
345 | memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); | |
346 | ||
47ff65c4 | 347 | /* Set up TX beacon contents */ |
4bf64efd | 348 | frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame, |
4bf64efd | 349 | sizeof(frame->u) - sizeof(*tx_beacon_cmd)); |
47ff65c4 DH |
350 | if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE)) |
351 | return 0; | |
4bf64efd | 352 | |
47ff65c4 | 353 | /* Set up TX command fields */ |
4bf64efd | 354 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
47ff65c4 DH |
355 | tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; |
356 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
357 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | | |
358 | TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; | |
4bf64efd | 359 | |
47ff65c4 DH |
360 | /* Set up TX beacon command fields */ |
361 | iwl_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame, | |
362 | frame_size); | |
4bf64efd | 363 | |
47ff65c4 DH |
364 | /* Set up packet rate and flags */ |
365 | rate = iwl_rate_get_lowest_plcp(priv); | |
366 | priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant); | |
367 | rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); | |
368 | if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE)) | |
369 | rate_flags |= RATE_MCS_CCK_MSK; | |
370 | tx_beacon_cmd->tx.rate_n_flags = iwl_hw_set_rate_n_flags(rate, | |
371 | rate_flags); | |
4bf64efd TW |
372 | |
373 | return sizeof(*tx_beacon_cmd) + frame_size; | |
374 | } | |
5b9f8cd3 | 375 | static int iwl_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 376 | { |
fcab423d | 377 | struct iwl_frame *frame; |
b481de9c ZY |
378 | unsigned int frame_size; |
379 | int rc; | |
b481de9c | 380 | |
fcab423d | 381 | frame = iwl_get_free_frame(priv); |
b481de9c | 382 | if (!frame) { |
15b1687c | 383 | IWL_ERR(priv, "Could not obtain free frame buffer for beacon " |
b481de9c ZY |
384 | "command.\n"); |
385 | return -ENOMEM; | |
386 | } | |
387 | ||
47ff65c4 DH |
388 | frame_size = iwl_hw_get_beacon_cmd(priv, frame); |
389 | if (!frame_size) { | |
390 | IWL_ERR(priv, "Error configuring the beacon command\n"); | |
391 | iwl_free_frame(priv, frame); | |
392 | return -EINVAL; | |
393 | } | |
b481de9c | 394 | |
857485c0 | 395 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
396 | &frame->u.cmd[0]); |
397 | ||
fcab423d | 398 | iwl_free_frame(priv, frame); |
b481de9c ZY |
399 | |
400 | return rc; | |
401 | } | |
402 | ||
7aaa1d79 SO |
403 | static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx) |
404 | { | |
405 | struct iwl_tfd_tb *tb = &tfd->tbs[idx]; | |
406 | ||
407 | dma_addr_t addr = get_unaligned_le32(&tb->lo); | |
408 | if (sizeof(dma_addr_t) > sizeof(u32)) | |
409 | addr |= | |
410 | ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16; | |
411 | ||
412 | return addr; | |
413 | } | |
414 | ||
415 | static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx) | |
416 | { | |
417 | struct iwl_tfd_tb *tb = &tfd->tbs[idx]; | |
418 | ||
419 | return le16_to_cpu(tb->hi_n_len) >> 4; | |
420 | } | |
421 | ||
422 | static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx, | |
423 | dma_addr_t addr, u16 len) | |
424 | { | |
425 | struct iwl_tfd_tb *tb = &tfd->tbs[idx]; | |
426 | u16 hi_n_len = len << 4; | |
427 | ||
428 | put_unaligned_le32(addr, &tb->lo); | |
429 | if (sizeof(dma_addr_t) > sizeof(u32)) | |
430 | hi_n_len |= ((addr >> 16) >> 16) & 0xF; | |
431 | ||
432 | tb->hi_n_len = cpu_to_le16(hi_n_len); | |
433 | ||
434 | tfd->num_tbs = idx + 1; | |
435 | } | |
436 | ||
437 | static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd) | |
438 | { | |
439 | return tfd->num_tbs & 0x1f; | |
440 | } | |
441 | ||
442 | /** | |
443 | * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr] | |
444 | * @priv - driver private data | |
445 | * @txq - tx queue | |
446 | * | |
447 | * Does NOT advance any TFD circular buffer read/write indexes | |
448 | * Does NOT free the TFD itself (which is within circular buffer) | |
449 | */ | |
450 | void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) | |
451 | { | |
59606ffa | 452 | struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds; |
7aaa1d79 SO |
453 | struct iwl_tfd *tfd; |
454 | struct pci_dev *dev = priv->pci_dev; | |
455 | int index = txq->q.read_ptr; | |
456 | int i; | |
457 | int num_tbs; | |
458 | ||
459 | tfd = &tfd_tmp[index]; | |
460 | ||
461 | /* Sanity check on number of chunks */ | |
462 | num_tbs = iwl_tfd_get_num_tbs(tfd); | |
463 | ||
464 | if (num_tbs >= IWL_NUM_OF_TBS) { | |
465 | IWL_ERR(priv, "Too many chunks: %i\n", num_tbs); | |
466 | /* @todo issue fatal error, it is quite serious situation */ | |
467 | return; | |
468 | } | |
469 | ||
470 | /* Unmap tx_cmd */ | |
471 | if (num_tbs) | |
472 | pci_unmap_single(dev, | |
c2acea8e JB |
473 | pci_unmap_addr(&txq->meta[index], mapping), |
474 | pci_unmap_len(&txq->meta[index], len), | |
96891cee | 475 | PCI_DMA_BIDIRECTIONAL); |
7aaa1d79 SO |
476 | |
477 | /* Unmap chunks, if any. */ | |
478 | for (i = 1; i < num_tbs; i++) { | |
479 | pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i), | |
480 | iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE); | |
481 | ||
482 | if (txq->txb) { | |
483 | dev_kfree_skb(txq->txb[txq->q.read_ptr].skb[i - 1]); | |
484 | txq->txb[txq->q.read_ptr].skb[i - 1] = NULL; | |
485 | } | |
486 | } | |
487 | } | |
488 | ||
489 | int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, | |
490 | struct iwl_tx_queue *txq, | |
491 | dma_addr_t addr, u16 len, | |
492 | u8 reset, u8 pad) | |
493 | { | |
494 | struct iwl_queue *q; | |
59606ffa | 495 | struct iwl_tfd *tfd, *tfd_tmp; |
7aaa1d79 SO |
496 | u32 num_tbs; |
497 | ||
498 | q = &txq->q; | |
59606ffa SO |
499 | tfd_tmp = (struct iwl_tfd *)txq->tfds; |
500 | tfd = &tfd_tmp[q->write_ptr]; | |
7aaa1d79 SO |
501 | |
502 | if (reset) | |
503 | memset(tfd, 0, sizeof(*tfd)); | |
504 | ||
505 | num_tbs = iwl_tfd_get_num_tbs(tfd); | |
506 | ||
507 | /* Each TFD can point to a maximum 20 Tx buffers */ | |
508 | if (num_tbs >= IWL_NUM_OF_TBS) { | |
509 | IWL_ERR(priv, "Error can not send more than %d chunks\n", | |
510 | IWL_NUM_OF_TBS); | |
511 | return -EINVAL; | |
512 | } | |
513 | ||
514 | BUG_ON(addr & ~DMA_BIT_MASK(36)); | |
515 | if (unlikely(addr & ~IWL_TX_DMA_MASK)) | |
516 | IWL_ERR(priv, "Unaligned address = %llx\n", | |
517 | (unsigned long long)addr); | |
518 | ||
519 | iwl_tfd_set_tb(tfd, num_tbs, addr, len); | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
a8e74e27 SO |
524 | /* |
525 | * Tell nic where to find circular buffer of Tx Frame Descriptors for | |
526 | * given Tx queue, and enable the DMA channel used for that queue. | |
527 | * | |
528 | * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA | |
529 | * channels supported in hardware. | |
530 | */ | |
531 | int iwl_hw_tx_queue_init(struct iwl_priv *priv, | |
532 | struct iwl_tx_queue *txq) | |
533 | { | |
a8e74e27 SO |
534 | int txq_id = txq->q.id; |
535 | ||
a8e74e27 SO |
536 | /* Circular buffer (TFD queue in DRAM) physical base address */ |
537 | iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id), | |
538 | txq->q.dma_addr >> 8); | |
539 | ||
a8e74e27 SO |
540 | return 0; |
541 | } | |
542 | ||
b481de9c ZY |
543 | /****************************************************************************** |
544 | * | |
545 | * Generic RX handler implementations | |
546 | * | |
547 | ******************************************************************************/ | |
885ba202 TW |
548 | static void iwl_rx_reply_alive(struct iwl_priv *priv, |
549 | struct iwl_rx_mem_buffer *rxb) | |
b481de9c | 550 | { |
2f301227 | 551 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
885ba202 | 552 | struct iwl_alive_resp *palive; |
b481de9c ZY |
553 | struct delayed_work *pwork; |
554 | ||
555 | palive = &pkt->u.alive_frame; | |
556 | ||
e1623446 | 557 | IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " |
b481de9c ZY |
558 | "0x%01X 0x%01X\n", |
559 | palive->is_valid, palive->ver_type, | |
560 | palive->ver_subtype); | |
561 | ||
562 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
e1623446 | 563 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
b481de9c ZY |
564 | memcpy(&priv->card_alive_init, |
565 | &pkt->u.alive_frame, | |
885ba202 | 566 | sizeof(struct iwl_init_alive_resp)); |
b481de9c ZY |
567 | pwork = &priv->init_alive_start; |
568 | } else { | |
e1623446 | 569 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c | 570 | memcpy(&priv->card_alive, &pkt->u.alive_frame, |
885ba202 | 571 | sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
572 | pwork = &priv->alive_start; |
573 | } | |
574 | ||
575 | /* We delay the ALIVE response by 5ms to | |
576 | * give the HW RF Kill time to activate... */ | |
577 | if (palive->is_valid == UCODE_VALID_OK) | |
578 | queue_delayed_work(priv->workqueue, pwork, | |
579 | msecs_to_jiffies(5)); | |
580 | else | |
39aadf8c | 581 | IWL_WARN(priv, "uCode did not respond OK.\n"); |
b481de9c ZY |
582 | } |
583 | ||
5b9f8cd3 | 584 | static void iwl_bg_beacon_update(struct work_struct *work) |
b481de9c | 585 | { |
c79dd5b5 TW |
586 | struct iwl_priv *priv = |
587 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
588 | struct sk_buff *beacon; |
589 | ||
590 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 591 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
592 | |
593 | if (!beacon) { | |
15b1687c | 594 | IWL_ERR(priv, "update beacon failed\n"); |
b481de9c ZY |
595 | return; |
596 | } | |
597 | ||
598 | mutex_lock(&priv->mutex); | |
599 | /* new beacon skb is allocated every time; dispose previous.*/ | |
600 | if (priv->ibss_beacon) | |
601 | dev_kfree_skb(priv->ibss_beacon); | |
602 | ||
603 | priv->ibss_beacon = beacon; | |
604 | mutex_unlock(&priv->mutex); | |
605 | ||
5b9f8cd3 | 606 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
607 | } |
608 | ||
4e39317d | 609 | /** |
5b9f8cd3 | 610 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
4e39317d EG |
611 | * |
612 | * This callback is provided in order to send a statistics request. | |
613 | * | |
614 | * This timer function is continually reset to execute within | |
615 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
616 | * was received. We need to ensure we receive the statistics in order | |
617 | * to update the temperature used for calibrating the TXPOWER. | |
618 | */ | |
5b9f8cd3 | 619 | static void iwl_bg_statistics_periodic(unsigned long data) |
4e39317d EG |
620 | { |
621 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
622 | ||
623 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
624 | return; | |
625 | ||
61780ee3 MA |
626 | /* dont send host command if rf-kill is on */ |
627 | if (!iwl_is_ready_rf(priv)) | |
628 | return; | |
629 | ||
ef8d5529 | 630 | iwl_send_statistics_request(priv, CMD_ASYNC, false); |
4e39317d EG |
631 | } |
632 | ||
a9e1cb6a WYG |
633 | |
634 | static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, | |
635 | u32 start_idx, u32 num_events, | |
636 | u32 mode) | |
637 | { | |
638 | u32 i; | |
639 | u32 ptr; /* SRAM byte address of log data */ | |
640 | u32 ev, time, data; /* event log data */ | |
641 | unsigned long reg_flags; | |
642 | ||
643 | if (mode == 0) | |
644 | ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); | |
645 | else | |
646 | ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); | |
647 | ||
648 | /* Make sure device is powered up for SRAM reads */ | |
649 | spin_lock_irqsave(&priv->reg_lock, reg_flags); | |
650 | if (iwl_grab_nic_access(priv)) { | |
651 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
652 | return; | |
653 | } | |
654 | ||
655 | /* Set starting address; reads will auto-increment */ | |
656 | _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr); | |
657 | rmb(); | |
658 | ||
659 | /* | |
660 | * "time" is actually "data" for mode 0 (no timestamp). | |
661 | * place event id # at far right for easier visual parsing. | |
662 | */ | |
663 | for (i = 0; i < num_events; i++) { | |
664 | ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
665 | time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
666 | if (mode == 0) { | |
667 | trace_iwlwifi_dev_ucode_cont_event(priv, | |
668 | 0, time, ev); | |
669 | } else { | |
670 | data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
671 | trace_iwlwifi_dev_ucode_cont_event(priv, | |
672 | time, data, ev); | |
673 | } | |
674 | } | |
675 | /* Allow device to power down */ | |
676 | iwl_release_nic_access(priv); | |
677 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
678 | } | |
679 | ||
875295f1 | 680 | static void iwl_continuous_event_trace(struct iwl_priv *priv) |
a9e1cb6a WYG |
681 | { |
682 | u32 capacity; /* event log capacity in # entries */ | |
683 | u32 base; /* SRAM byte address of event log header */ | |
684 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
685 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
686 | u32 next_entry; /* index of next entry to be written by uCode */ | |
687 | ||
688 | if (priv->ucode_type == UCODE_INIT) | |
689 | base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); | |
690 | else | |
691 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
692 | if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
693 | capacity = iwl_read_targ_mem(priv, base); | |
694 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
695 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
696 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
697 | } else | |
698 | return; | |
699 | ||
700 | if (num_wraps == priv->event_log.num_wraps) { | |
701 | iwl_print_cont_event_trace(priv, | |
702 | base, priv->event_log.next_entry, | |
703 | next_entry - priv->event_log.next_entry, | |
704 | mode); | |
705 | priv->event_log.non_wraps_count++; | |
706 | } else { | |
707 | if ((num_wraps - priv->event_log.num_wraps) > 1) | |
708 | priv->event_log.wraps_more_count++; | |
709 | else | |
710 | priv->event_log.wraps_once_count++; | |
711 | trace_iwlwifi_dev_ucode_wrap_event(priv, | |
712 | num_wraps - priv->event_log.num_wraps, | |
713 | next_entry, priv->event_log.next_entry); | |
714 | if (next_entry < priv->event_log.next_entry) { | |
715 | iwl_print_cont_event_trace(priv, base, | |
716 | priv->event_log.next_entry, | |
717 | capacity - priv->event_log.next_entry, | |
718 | mode); | |
719 | ||
720 | iwl_print_cont_event_trace(priv, base, 0, | |
721 | next_entry, mode); | |
722 | } else { | |
723 | iwl_print_cont_event_trace(priv, base, | |
724 | next_entry, capacity - next_entry, | |
725 | mode); | |
726 | ||
727 | iwl_print_cont_event_trace(priv, base, 0, | |
728 | next_entry, mode); | |
729 | } | |
730 | } | |
731 | priv->event_log.num_wraps = num_wraps; | |
732 | priv->event_log.next_entry = next_entry; | |
733 | } | |
734 | ||
735 | /** | |
736 | * iwl_bg_ucode_trace - Timer callback to log ucode event | |
737 | * | |
738 | * The timer is continually set to execute every | |
739 | * UCODE_TRACE_PERIOD milliseconds after the last timer expired | |
740 | * this function is to perform continuous uCode event logging operation | |
741 | * if enabled | |
742 | */ | |
743 | static void iwl_bg_ucode_trace(unsigned long data) | |
744 | { | |
745 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
746 | ||
747 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
748 | return; | |
749 | ||
750 | if (priv->event_log.ucode_trace) { | |
751 | iwl_continuous_event_trace(priv); | |
752 | /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ | |
753 | mod_timer(&priv->ucode_trace, | |
754 | jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); | |
755 | } | |
756 | } | |
757 | ||
5b9f8cd3 | 758 | static void iwl_rx_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 759 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 760 | { |
0a6857e7 | 761 | #ifdef CONFIG_IWLWIFI_DEBUG |
2f301227 | 762 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
2aa6ab86 TW |
763 | struct iwl4965_beacon_notif *beacon = |
764 | (struct iwl4965_beacon_notif *)pkt->u.raw; | |
e7d326ac | 765 | u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); |
b481de9c | 766 | |
e1623446 | 767 | IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " |
b481de9c | 768 | "tsf %d %d rate %d\n", |
25a6572c | 769 | le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, |
b481de9c ZY |
770 | beacon->beacon_notify_hdr.failure_frame, |
771 | le32_to_cpu(beacon->ibss_mgr_status), | |
772 | le32_to_cpu(beacon->high_tsf), | |
773 | le32_to_cpu(beacon->low_tsf), rate); | |
774 | #endif | |
775 | ||
05c914fe | 776 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
777 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
778 | queue_work(priv->workqueue, &priv->beacon_update); | |
779 | } | |
780 | ||
b481de9c ZY |
781 | /* Handle notification from uCode that card's power state is changing |
782 | * due to software, hardware, or critical temperature RFKILL */ | |
5b9f8cd3 | 783 | static void iwl_rx_card_state_notif(struct iwl_priv *priv, |
a55360e4 | 784 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 785 | { |
2f301227 | 786 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
b481de9c ZY |
787 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
788 | unsigned long status = priv->status; | |
789 | ||
3a41bbd5 | 790 | IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n", |
b481de9c | 791 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
3a41bbd5 WYG |
792 | (flags & SW_CARD_DISABLED) ? "Kill" : "On", |
793 | (flags & CT_CARD_DISABLED) ? | |
794 | "Reached" : "Not reached"); | |
b481de9c ZY |
795 | |
796 | if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | | |
3a41bbd5 | 797 | CT_CARD_DISABLED)) { |
b481de9c | 798 | |
3395f6e9 | 799 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
800 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
801 | ||
a8b50a0a MA |
802 | iwl_write_direct32(priv, HBUS_TARG_MBX_C, |
803 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); | |
b481de9c ZY |
804 | |
805 | if (!(flags & RXON_CARD_DISABLED)) { | |
3395f6e9 | 806 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c | 807 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
a8b50a0a | 808 | iwl_write_direct32(priv, HBUS_TARG_MBX_C, |
b481de9c | 809 | HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); |
b481de9c | 810 | } |
3a41bbd5 | 811 | if (flags & CT_CARD_DISABLED) |
39b73fb1 | 812 | iwl_tt_enter_ct_kill(priv); |
b481de9c | 813 | } |
3a41bbd5 | 814 | if (!(flags & CT_CARD_DISABLED)) |
39b73fb1 | 815 | iwl_tt_exit_ct_kill(priv); |
b481de9c ZY |
816 | |
817 | if (flags & HW_CARD_DISABLED) | |
818 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
819 | else | |
820 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
821 | ||
822 | ||
b481de9c | 823 | if (!(flags & RXON_CARD_DISABLED)) |
2a421b91 | 824 | iwl_scan_cancel(priv); |
b481de9c ZY |
825 | |
826 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
a60e77e5 JB |
827 | test_bit(STATUS_RF_KILL_HW, &priv->status))) |
828 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, | |
829 | test_bit(STATUS_RF_KILL_HW, &priv->status)); | |
b481de9c ZY |
830 | else |
831 | wake_up_interruptible(&priv->wait_command_queue); | |
832 | } | |
833 | ||
5b9f8cd3 | 834 | int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) |
e2e3c57b | 835 | { |
e2e3c57b | 836 | if (src == IWL_PWR_SRC_VAUX) { |
3fdb68de | 837 | if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) |
e2e3c57b TW |
838 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, |
839 | APMG_PS_CTRL_VAL_PWR_SRC_VAUX, | |
840 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
841 | } else { | |
842 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, | |
843 | APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, | |
844 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
845 | } | |
846 | ||
a8b50a0a | 847 | return 0; |
e2e3c57b TW |
848 | } |
849 | ||
b481de9c | 850 | /** |
5b9f8cd3 | 851 | * iwl_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
852 | * |
853 | * Setup the RX handlers for each of the reply types sent from the uCode | |
854 | * to the host. | |
855 | * | |
856 | * This function chains into the hardware specific files for them to setup | |
857 | * any hardware specific handlers as well. | |
858 | */ | |
653fa4a0 | 859 | static void iwl_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 860 | { |
885ba202 | 861 | priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; |
5b9f8cd3 EG |
862 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
863 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; | |
81963d68 RC |
864 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
865 | iwl_rx_spectrum_measure_notif; | |
5b9f8cd3 | 866 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
b481de9c | 867 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
5b9f8cd3 EG |
868 | iwl_rx_pm_debug_statistics_notif; |
869 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif; | |
b481de9c | 870 | |
9fbab516 BC |
871 | /* |
872 | * The same handler is used for both the REPLY to a discrete | |
873 | * statistics request from the host as well as for the periodic | |
874 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 875 | */ |
ef8d5529 | 876 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_reply_statistics; |
8f91aecb | 877 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics; |
2a421b91 TW |
878 | |
879 | iwl_setup_rx_scan_handlers(priv); | |
880 | ||
37a44211 | 881 | /* status change handler */ |
5b9f8cd3 | 882 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif; |
b481de9c | 883 | |
c1354754 TW |
884 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = |
885 | iwl_rx_missed_beacon_notif; | |
37a44211 | 886 | /* Rx handlers */ |
1781a07f EG |
887 | priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy; |
888 | priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx; | |
653fa4a0 EG |
889 | /* block ack */ |
890 | priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba; | |
9fbab516 | 891 | /* Set up hardware specific Rx handlers */ |
d4789efe | 892 | priv->cfg->ops->lib->rx_handler_setup(priv); |
b481de9c ZY |
893 | } |
894 | ||
b481de9c | 895 | /** |
a55360e4 | 896 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
897 | * |
898 | * Uses the priv->rx_handlers callback function array to invoke | |
899 | * the appropriate handlers, including command responses, | |
900 | * frame-received notifications, and other notifications. | |
901 | */ | |
a55360e4 | 902 | void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 903 | { |
a55360e4 | 904 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 905 | struct iwl_rx_packet *pkt; |
a55360e4 | 906 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
907 | u32 r, i; |
908 | int reclaim; | |
909 | unsigned long flags; | |
5c0eef96 | 910 | u8 fill_rx = 0; |
d68ab680 | 911 | u32 count = 8; |
4752c93c | 912 | int total_empty; |
b481de9c | 913 | |
6440adb5 CB |
914 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
915 | * buffer that the driver may process (last buffer filled by ucode). */ | |
8d86422a | 916 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
b481de9c ZY |
917 | i = rxq->read; |
918 | ||
919 | /* Rx interrupt, but nothing sent from uCode */ | |
920 | if (i == r) | |
e1623446 | 921 | IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); |
b481de9c | 922 | |
4752c93c | 923 | /* calculate total frames need to be restock after handling RX */ |
7300515d | 924 | total_empty = r - rxq->write_actual; |
4752c93c MA |
925 | if (total_empty < 0) |
926 | total_empty += RX_QUEUE_SIZE; | |
927 | ||
928 | if (total_empty > (RX_QUEUE_SIZE / 2)) | |
5c0eef96 MA |
929 | fill_rx = 1; |
930 | ||
b481de9c ZY |
931 | while (i != r) { |
932 | rxb = rxq->queue[i]; | |
933 | ||
9fbab516 | 934 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
935 | * then a bug has been introduced in the queue refilling |
936 | * routines -- catch it here */ | |
937 | BUG_ON(rxb == NULL); | |
938 | ||
939 | rxq->queue[i] = NULL; | |
940 | ||
2f301227 ZY |
941 | pci_unmap_page(priv->pci_dev, rxb->page_dma, |
942 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
943 | PCI_DMA_FROMDEVICE); | |
944 | pkt = rxb_addr(rxb); | |
b481de9c | 945 | |
be1a71a1 JB |
946 | trace_iwlwifi_dev_rx(priv, pkt, |
947 | le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK); | |
948 | ||
b481de9c ZY |
949 | /* Reclaim a command buffer only if this packet is a response |
950 | * to a (driver-originated) command. | |
951 | * If the packet (e.g. Rx frame) originated from uCode, | |
952 | * there is no command buffer to reclaim. | |
953 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
954 | * but apparently a few don't get set; catch them here. */ | |
955 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
956 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 957 | (pkt->hdr.cmd != REPLY_RX) && |
7dddaf1a | 958 | (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && |
cfe01709 | 959 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
960 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
961 | (pkt->hdr.cmd != REPLY_TX); | |
962 | ||
963 | /* Based on type of command response or notification, | |
964 | * handle those that need handling via function in | |
5b9f8cd3 | 965 | * rx_handlers table. See iwl_setup_rx_handlers() */ |
b481de9c | 966 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
e1623446 | 967 | IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, |
f3d67999 | 968 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
a83b9141 | 969 | priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; |
29b1b268 | 970 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
b481de9c ZY |
971 | } else { |
972 | /* No handling needed */ | |
e1623446 | 973 | IWL_DEBUG_RX(priv, |
b481de9c ZY |
974 | "r %d i %d No handler needed for %s, 0x%02x\n", |
975 | r, i, get_cmd_string(pkt->hdr.cmd), | |
976 | pkt->hdr.cmd); | |
977 | } | |
978 | ||
29b1b268 ZY |
979 | /* |
980 | * XXX: After here, we should always check rxb->page | |
981 | * against NULL before touching it or its virtual | |
982 | * memory (pkt). Because some rx_handler might have | |
983 | * already taken or freed the pages. | |
984 | */ | |
985 | ||
b481de9c | 986 | if (reclaim) { |
2f301227 ZY |
987 | /* Invoke any callbacks, transfer the buffer to caller, |
988 | * and fire off the (possibly) blocking iwl_send_cmd() | |
b481de9c | 989 | * as we reclaim the driver command queue */ |
29b1b268 | 990 | if (rxb->page) |
17b88929 | 991 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c | 992 | else |
39aadf8c | 993 | IWL_WARN(priv, "Claim null rxb?\n"); |
b481de9c ZY |
994 | } |
995 | ||
7300515d ZY |
996 | /* Reuse the page if possible. For notification packets and |
997 | * SKBs that fail to Rx correctly, add them back into the | |
998 | * rx_free list for reuse later. */ | |
999 | spin_lock_irqsave(&rxq->lock, flags); | |
2f301227 | 1000 | if (rxb->page != NULL) { |
7300515d ZY |
1001 | rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page, |
1002 | 0, PAGE_SIZE << priv->hw_params.rx_page_order, | |
1003 | PCI_DMA_FROMDEVICE); | |
1004 | list_add_tail(&rxb->list, &rxq->rx_free); | |
1005 | rxq->free_count++; | |
1006 | } else | |
1007 | list_add_tail(&rxb->list, &rxq->rx_used); | |
b481de9c | 1008 | |
b481de9c | 1009 | spin_unlock_irqrestore(&rxq->lock, flags); |
7300515d | 1010 | |
b481de9c | 1011 | i = (i + 1) & RX_QUEUE_MASK; |
5c0eef96 MA |
1012 | /* If there are a lot of unused frames, |
1013 | * restock the Rx queue so ucode wont assert. */ | |
1014 | if (fill_rx) { | |
1015 | count++; | |
1016 | if (count >= 8) { | |
7300515d | 1017 | rxq->read = i; |
4752c93c | 1018 | iwl_rx_replenish_now(priv); |
5c0eef96 MA |
1019 | count = 0; |
1020 | } | |
1021 | } | |
b481de9c ZY |
1022 | } |
1023 | ||
1024 | /* Backtrack one entry */ | |
7300515d | 1025 | rxq->read = i; |
4752c93c MA |
1026 | if (fill_rx) |
1027 | iwl_rx_replenish_now(priv); | |
1028 | else | |
1029 | iwl_rx_queue_restock(priv); | |
a55360e4 | 1030 | } |
a55360e4 | 1031 | |
0359facc MA |
1032 | /* call this function to flush any scheduled tasklet */ |
1033 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) | |
1034 | { | |
a96a27f9 | 1035 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
1036 | synchronize_irq(priv->pci_dev->irq); |
1037 | tasklet_kill(&priv->irq_tasklet); | |
1038 | } | |
1039 | ||
ef850d7c | 1040 | static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) |
b481de9c ZY |
1041 | { |
1042 | u32 inta, handled = 0; | |
1043 | u32 inta_fh; | |
1044 | unsigned long flags; | |
c2e61da2 | 1045 | u32 i; |
0a6857e7 | 1046 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
1047 | u32 inta_mask; |
1048 | #endif | |
1049 | ||
1050 | spin_lock_irqsave(&priv->lock, flags); | |
1051 | ||
1052 | /* Ack/clear/reset pending uCode interrupts. | |
1053 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1054 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
3395f6e9 TW |
1055 | inta = iwl_read32(priv, CSR_INT); |
1056 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
1057 | |
1058 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
1059 | * Any new interrupts that happen after this, either while we're | |
1060 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
3395f6e9 TW |
1061 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
1062 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 1063 | |
0a6857e7 | 1064 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1065 | if (iwl_get_debug_level(priv) & IWL_DL_ISR) { |
9fbab516 | 1066 | /* just for debug */ |
3395f6e9 | 1067 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
e1623446 | 1068 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
b481de9c ZY |
1069 | inta, inta_mask, inta_fh); |
1070 | } | |
1071 | #endif | |
1072 | ||
2f301227 ZY |
1073 | spin_unlock_irqrestore(&priv->lock, flags); |
1074 | ||
b481de9c ZY |
1075 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not |
1076 | * atomic, make sure that inta covers all the interrupts that | |
1077 | * we've discovered, even if FH interrupt came in just after | |
1078 | * reading CSR_INT. */ | |
6f83eaa1 | 1079 | if (inta_fh & CSR49_FH_INT_RX_MASK) |
b481de9c | 1080 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 1081 | if (inta_fh & CSR49_FH_INT_TX_MASK) |
b481de9c ZY |
1082 | inta |= CSR_INT_BIT_FH_TX; |
1083 | ||
1084 | /* Now service all interrupt bits discovered above. */ | |
1085 | if (inta & CSR_INT_BIT_HW_ERR) { | |
58dba728 | 1086 | IWL_ERR(priv, "Hardware error detected. Restarting.\n"); |
b481de9c ZY |
1087 | |
1088 | /* Tell the device to stop sending interrupts */ | |
5b9f8cd3 | 1089 | iwl_disable_interrupts(priv); |
b481de9c | 1090 | |
a83b9141 | 1091 | priv->isr_stats.hw++; |
5b9f8cd3 | 1092 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1093 | |
1094 | handled |= CSR_INT_BIT_HW_ERR; | |
1095 | ||
b481de9c ZY |
1096 | return; |
1097 | } | |
1098 | ||
0a6857e7 | 1099 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1100 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
b481de9c | 1101 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
a83b9141 | 1102 | if (inta & CSR_INT_BIT_SCD) { |
e1623446 | 1103 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " |
25c03d8e | 1104 | "the frame/frames.\n"); |
a83b9141 WYG |
1105 | priv->isr_stats.sch++; |
1106 | } | |
b481de9c ZY |
1107 | |
1108 | /* Alive notification via Rx interrupt will do the real work */ | |
a83b9141 | 1109 | if (inta & CSR_INT_BIT_ALIVE) { |
e1623446 | 1110 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); |
a83b9141 WYG |
1111 | priv->isr_stats.alive++; |
1112 | } | |
b481de9c ZY |
1113 | } |
1114 | #endif | |
1115 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 1116 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 1117 | |
9fbab516 | 1118 | /* HW RF KILL switch toggled */ |
b481de9c ZY |
1119 | if (inta & CSR_INT_BIT_RF_KILL) { |
1120 | int hw_rf_kill = 0; | |
3395f6e9 | 1121 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
b481de9c ZY |
1122 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
1123 | hw_rf_kill = 1; | |
1124 | ||
4c423a2b | 1125 | IWL_WARN(priv, "RF_KILL bit toggled to %s.\n", |
c3056065 | 1126 | hw_rf_kill ? "disable radio" : "enable radio"); |
b481de9c | 1127 | |
a83b9141 WYG |
1128 | priv->isr_stats.rfkill++; |
1129 | ||
a9efa652 | 1130 | /* driver only loads ucode once setting the interface up. |
6cd0b1cb HS |
1131 | * the driver allows loading the ucode even if the radio |
1132 | * is killed. Hence update the killswitch state here. The | |
1133 | * rfkill handler will care about restarting if needed. | |
a9efa652 | 1134 | */ |
6cd0b1cb HS |
1135 | if (!test_bit(STATUS_ALIVE, &priv->status)) { |
1136 | if (hw_rf_kill) | |
1137 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1138 | else | |
1139 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a60e77e5 | 1140 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); |
edb34228 | 1141 | } |
b481de9c ZY |
1142 | |
1143 | handled |= CSR_INT_BIT_RF_KILL; | |
1144 | } | |
1145 | ||
9fbab516 | 1146 | /* Chip got too hot and stopped itself */ |
b481de9c | 1147 | if (inta & CSR_INT_BIT_CT_KILL) { |
15b1687c | 1148 | IWL_ERR(priv, "Microcode CT kill error detected.\n"); |
a83b9141 | 1149 | priv->isr_stats.ctkill++; |
b481de9c ZY |
1150 | handled |= CSR_INT_BIT_CT_KILL; |
1151 | } | |
1152 | ||
1153 | /* Error detected by uCode */ | |
1154 | if (inta & CSR_INT_BIT_SW_ERR) { | |
15b1687c WT |
1155 | IWL_ERR(priv, "Microcode SW error detected. " |
1156 | " Restarting 0x%X.\n", inta); | |
a83b9141 WYG |
1157 | priv->isr_stats.sw++; |
1158 | priv->isr_stats.sw_err = inta; | |
5b9f8cd3 | 1159 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1160 | handled |= CSR_INT_BIT_SW_ERR; |
1161 | } | |
1162 | ||
c2e61da2 BC |
1163 | /* |
1164 | * uCode wakes up after power-down sleep. | |
1165 | * Tell device about any new tx or host commands enqueued, | |
1166 | * and about any Rx buffers made available while asleep. | |
1167 | */ | |
b481de9c | 1168 | if (inta & CSR_INT_BIT_WAKEUP) { |
e1623446 | 1169 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); |
a55360e4 | 1170 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
c2e61da2 BC |
1171 | for (i = 0; i < priv->hw_params.max_txq_num; i++) |
1172 | iwl_txq_update_write_ptr(priv, &priv->txq[i]); | |
a83b9141 | 1173 | priv->isr_stats.wakeup++; |
b481de9c ZY |
1174 | handled |= CSR_INT_BIT_WAKEUP; |
1175 | } | |
1176 | ||
1177 | /* All uCode command responses, including Tx command responses, | |
1178 | * Rx "responses" (frame-received notification), and other | |
1179 | * notifications from uCode come through here*/ | |
1180 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
a55360e4 | 1181 | iwl_rx_handle(priv); |
a83b9141 | 1182 | priv->isr_stats.rx++; |
b481de9c ZY |
1183 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
1184 | } | |
1185 | ||
c72cd19f | 1186 | /* This "Tx" DMA channel is used only for loading uCode */ |
b481de9c | 1187 | if (inta & CSR_INT_BIT_FH_TX) { |
c72cd19f | 1188 | IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); |
a83b9141 | 1189 | priv->isr_stats.tx++; |
b481de9c | 1190 | handled |= CSR_INT_BIT_FH_TX; |
c72cd19f | 1191 | /* Wake up uCode load routine, now that load is complete */ |
dbb983b7 RR |
1192 | priv->ucode_write_complete = 1; |
1193 | wake_up_interruptible(&priv->wait_command_queue); | |
b481de9c ZY |
1194 | } |
1195 | ||
a83b9141 | 1196 | if (inta & ~handled) { |
15b1687c | 1197 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); |
a83b9141 WYG |
1198 | priv->isr_stats.unhandled++; |
1199 | } | |
b481de9c | 1200 | |
40cefda9 | 1201 | if (inta & ~(priv->inta_mask)) { |
39aadf8c | 1202 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
40cefda9 | 1203 | inta & ~priv->inta_mask); |
39aadf8c | 1204 | IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); |
b481de9c ZY |
1205 | } |
1206 | ||
1207 | /* Re-enable all interrupts */ | |
0359facc MA |
1208 | /* only Re-enable if diabled by irq */ |
1209 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
5b9f8cd3 | 1210 | iwl_enable_interrupts(priv); |
b481de9c | 1211 | |
0a6857e7 | 1212 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1213 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
3395f6e9 TW |
1214 | inta = iwl_read32(priv, CSR_INT); |
1215 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
1216 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
e1623446 | 1217 | IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
b481de9c ZY |
1218 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
1219 | } | |
1220 | #endif | |
b481de9c ZY |
1221 | } |
1222 | ||
ef850d7c MA |
1223 | /* tasklet for iwlagn interrupt */ |
1224 | static void iwl_irq_tasklet(struct iwl_priv *priv) | |
1225 | { | |
1226 | u32 inta = 0; | |
1227 | u32 handled = 0; | |
1228 | unsigned long flags; | |
8756990f | 1229 | u32 i; |
ef850d7c MA |
1230 | #ifdef CONFIG_IWLWIFI_DEBUG |
1231 | u32 inta_mask; | |
1232 | #endif | |
1233 | ||
1234 | spin_lock_irqsave(&priv->lock, flags); | |
1235 | ||
1236 | /* Ack/clear/reset pending uCode interrupts. | |
1237 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1238 | */ | |
a4c8b2a6 | 1239 | iwl_write32(priv, CSR_INT, priv->_agn.inta); |
ef850d7c | 1240 | |
a4c8b2a6 | 1241 | inta = priv->_agn.inta; |
ef850d7c MA |
1242 | |
1243 | #ifdef CONFIG_IWLWIFI_DEBUG | |
3d816c77 | 1244 | if (iwl_get_debug_level(priv) & IWL_DL_ISR) { |
ef850d7c MA |
1245 | /* just for debug */ |
1246 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
1247 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ", | |
1248 | inta, inta_mask); | |
1249 | } | |
1250 | #endif | |
2f301227 ZY |
1251 | |
1252 | spin_unlock_irqrestore(&priv->lock, flags); | |
1253 | ||
a4c8b2a6 JB |
1254 | /* saved interrupt in inta variable now we can reset priv->_agn.inta */ |
1255 | priv->_agn.inta = 0; | |
ef850d7c MA |
1256 | |
1257 | /* Now service all interrupt bits discovered above. */ | |
1258 | if (inta & CSR_INT_BIT_HW_ERR) { | |
58dba728 | 1259 | IWL_ERR(priv, "Hardware error detected. Restarting.\n"); |
ef850d7c MA |
1260 | |
1261 | /* Tell the device to stop sending interrupts */ | |
1262 | iwl_disable_interrupts(priv); | |
1263 | ||
1264 | priv->isr_stats.hw++; | |
1265 | iwl_irq_handle_error(priv); | |
1266 | ||
1267 | handled |= CSR_INT_BIT_HW_ERR; | |
1268 | ||
ef850d7c MA |
1269 | return; |
1270 | } | |
1271 | ||
1272 | #ifdef CONFIG_IWLWIFI_DEBUG | |
3d816c77 | 1273 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
ef850d7c MA |
1274 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
1275 | if (inta & CSR_INT_BIT_SCD) { | |
1276 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " | |
1277 | "the frame/frames.\n"); | |
1278 | priv->isr_stats.sch++; | |
1279 | } | |
1280 | ||
1281 | /* Alive notification via Rx interrupt will do the real work */ | |
1282 | if (inta & CSR_INT_BIT_ALIVE) { | |
1283 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); | |
1284 | priv->isr_stats.alive++; | |
1285 | } | |
1286 | } | |
1287 | #endif | |
1288 | /* Safely ignore these bits for debug checks below */ | |
1289 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); | |
1290 | ||
1291 | /* HW RF KILL switch toggled */ | |
1292 | if (inta & CSR_INT_BIT_RF_KILL) { | |
1293 | int hw_rf_kill = 0; | |
1294 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & | |
1295 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) | |
1296 | hw_rf_kill = 1; | |
1297 | ||
4c423a2b | 1298 | IWL_WARN(priv, "RF_KILL bit toggled to %s.\n", |
ef850d7c MA |
1299 | hw_rf_kill ? "disable radio" : "enable radio"); |
1300 | ||
1301 | priv->isr_stats.rfkill++; | |
1302 | ||
1303 | /* driver only loads ucode once setting the interface up. | |
1304 | * the driver allows loading the ucode even if the radio | |
1305 | * is killed. Hence update the killswitch state here. The | |
1306 | * rfkill handler will care about restarting if needed. | |
1307 | */ | |
1308 | if (!test_bit(STATUS_ALIVE, &priv->status)) { | |
1309 | if (hw_rf_kill) | |
1310 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1311 | else | |
1312 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a60e77e5 | 1313 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); |
ef850d7c MA |
1314 | } |
1315 | ||
1316 | handled |= CSR_INT_BIT_RF_KILL; | |
1317 | } | |
1318 | ||
1319 | /* Chip got too hot and stopped itself */ | |
1320 | if (inta & CSR_INT_BIT_CT_KILL) { | |
1321 | IWL_ERR(priv, "Microcode CT kill error detected.\n"); | |
1322 | priv->isr_stats.ctkill++; | |
1323 | handled |= CSR_INT_BIT_CT_KILL; | |
1324 | } | |
1325 | ||
1326 | /* Error detected by uCode */ | |
1327 | if (inta & CSR_INT_BIT_SW_ERR) { | |
1328 | IWL_ERR(priv, "Microcode SW error detected. " | |
1329 | " Restarting 0x%X.\n", inta); | |
1330 | priv->isr_stats.sw++; | |
1331 | priv->isr_stats.sw_err = inta; | |
1332 | iwl_irq_handle_error(priv); | |
1333 | handled |= CSR_INT_BIT_SW_ERR; | |
1334 | } | |
1335 | ||
1336 | /* uCode wakes up after power-down sleep */ | |
1337 | if (inta & CSR_INT_BIT_WAKEUP) { | |
1338 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); | |
1339 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); | |
8756990f BC |
1340 | for (i = 0; i < priv->hw_params.max_txq_num; i++) |
1341 | iwl_txq_update_write_ptr(priv, &priv->txq[i]); | |
ef850d7c MA |
1342 | |
1343 | priv->isr_stats.wakeup++; | |
1344 | ||
1345 | handled |= CSR_INT_BIT_WAKEUP; | |
1346 | } | |
1347 | ||
1348 | /* All uCode command responses, including Tx command responses, | |
1349 | * Rx "responses" (frame-received notification), and other | |
1350 | * notifications from uCode come through here*/ | |
40cefda9 MA |
1351 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX | |
1352 | CSR_INT_BIT_RX_PERIODIC)) { | |
ef850d7c | 1353 | IWL_DEBUG_ISR(priv, "Rx interrupt\n"); |
40cefda9 MA |
1354 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { |
1355 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); | |
1356 | iwl_write32(priv, CSR_FH_INT_STATUS, | |
1357 | CSR49_FH_INT_RX_MASK); | |
1358 | } | |
1359 | if (inta & CSR_INT_BIT_RX_PERIODIC) { | |
1360 | handled |= CSR_INT_BIT_RX_PERIODIC; | |
1361 | iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC); | |
1362 | } | |
1363 | /* Sending RX interrupt require many steps to be done in the | |
1364 | * the device: | |
1365 | * 1- write interrupt to current index in ICT table. | |
1366 | * 2- dma RX frame. | |
1367 | * 3- update RX shared data to indicate last write index. | |
1368 | * 4- send interrupt. | |
1369 | * This could lead to RX race, driver could receive RX interrupt | |
74ba67ed BC |
1370 | * but the shared data changes does not reflect this; |
1371 | * periodic interrupt will detect any dangling Rx activity. | |
40cefda9 | 1372 | */ |
74ba67ed BC |
1373 | |
1374 | /* Disable periodic interrupt; we use it as just a one-shot. */ | |
1375 | iwl_write8(priv, CSR_INT_PERIODIC_REG, | |
40cefda9 | 1376 | CSR_INT_PERIODIC_DIS); |
ef850d7c | 1377 | iwl_rx_handle(priv); |
74ba67ed BC |
1378 | |
1379 | /* | |
1380 | * Enable periodic interrupt in 8 msec only if we received | |
1381 | * real RX interrupt (instead of just periodic int), to catch | |
1382 | * any dangling Rx interrupt. If it was just the periodic | |
1383 | * interrupt, there was no dangling Rx activity, and no need | |
1384 | * to extend the periodic interrupt; one-shot is enough. | |
1385 | */ | |
40cefda9 | 1386 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) |
74ba67ed | 1387 | iwl_write8(priv, CSR_INT_PERIODIC_REG, |
40cefda9 MA |
1388 | CSR_INT_PERIODIC_ENA); |
1389 | ||
ef850d7c | 1390 | priv->isr_stats.rx++; |
ef850d7c MA |
1391 | } |
1392 | ||
c72cd19f | 1393 | /* This "Tx" DMA channel is used only for loading uCode */ |
ef850d7c MA |
1394 | if (inta & CSR_INT_BIT_FH_TX) { |
1395 | iwl_write32(priv, CSR_FH_INT_STATUS, CSR49_FH_INT_TX_MASK); | |
c72cd19f | 1396 | IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); |
ef850d7c MA |
1397 | priv->isr_stats.tx++; |
1398 | handled |= CSR_INT_BIT_FH_TX; | |
c72cd19f | 1399 | /* Wake up uCode load routine, now that load is complete */ |
ef850d7c MA |
1400 | priv->ucode_write_complete = 1; |
1401 | wake_up_interruptible(&priv->wait_command_queue); | |
1402 | } | |
1403 | ||
1404 | if (inta & ~handled) { | |
1405 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
1406 | priv->isr_stats.unhandled++; | |
1407 | } | |
1408 | ||
40cefda9 | 1409 | if (inta & ~(priv->inta_mask)) { |
ef850d7c | 1410 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
40cefda9 | 1411 | inta & ~priv->inta_mask); |
ef850d7c MA |
1412 | } |
1413 | ||
ef850d7c MA |
1414 | /* Re-enable all interrupts */ |
1415 | /* only Re-enable if diabled by irq */ | |
1416 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
1417 | iwl_enable_interrupts(priv); | |
ef850d7c MA |
1418 | } |
1419 | ||
a83b9141 | 1420 | |
b481de9c ZY |
1421 | /****************************************************************************** |
1422 | * | |
1423 | * uCode download functions | |
1424 | * | |
1425 | ******************************************************************************/ | |
1426 | ||
5b9f8cd3 | 1427 | static void iwl_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 1428 | { |
98c92211 TW |
1429 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
1430 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
1431 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
1432 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
1433 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
1434 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
1435 | } |
1436 | ||
5b9f8cd3 | 1437 | static void iwl_nic_start(struct iwl_priv *priv) |
edcdf8b2 RR |
1438 | { |
1439 | /* Remove all resets to allow NIC to operate */ | |
1440 | iwl_write32(priv, CSR_RESET, 0); | |
1441 | } | |
1442 | ||
1443 | ||
b08dfd04 JB |
1444 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); |
1445 | static int iwl_mac_setup_register(struct iwl_priv *priv); | |
1446 | ||
1447 | static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) | |
1448 | { | |
1449 | const char *name_pre = priv->cfg->fw_name_pre; | |
1450 | ||
1451 | if (first) | |
1452 | priv->fw_index = priv->cfg->ucode_api_max; | |
1453 | else | |
1454 | priv->fw_index--; | |
1455 | ||
1456 | if (priv->fw_index < priv->cfg->ucode_api_min) { | |
1457 | IWL_ERR(priv, "no suitable firmware found!\n"); | |
1458 | return -ENOENT; | |
1459 | } | |
1460 | ||
1461 | sprintf(priv->firmware_name, "%s%d%s", | |
1462 | name_pre, priv->fw_index, ".ucode"); | |
1463 | ||
1464 | IWL_DEBUG_INFO(priv, "attempting to load firmware '%s'\n", | |
1465 | priv->firmware_name); | |
1466 | ||
1467 | return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, | |
1468 | &priv->pci_dev->dev, GFP_KERNEL, priv, | |
1469 | iwl_ucode_callback); | |
1470 | } | |
1471 | ||
b481de9c | 1472 | /** |
b08dfd04 | 1473 | * iwl_ucode_callback - callback when firmware was loaded |
b481de9c | 1474 | * |
b08dfd04 JB |
1475 | * If loaded successfully, copies the firmware into buffers |
1476 | * for the card to fetch (via DMA). | |
b481de9c | 1477 | */ |
b08dfd04 | 1478 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) |
b481de9c | 1479 | { |
b08dfd04 | 1480 | struct iwl_priv *priv = context; |
cc0f555d | 1481 | struct iwl_ucode_header *ucode; |
a0987a8d RC |
1482 | const unsigned int api_max = priv->cfg->ucode_api_max; |
1483 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
b481de9c ZY |
1484 | u8 *src; |
1485 | size_t len; | |
cc0f555d JS |
1486 | u32 api_ver, build; |
1487 | u32 inst_size, data_size, init_size, init_data_size, boot_size; | |
b08dfd04 | 1488 | int err; |
abdc2d62 | 1489 | u16 eeprom_ver; |
b481de9c | 1490 | |
b08dfd04 JB |
1491 | if (!ucode_raw) { |
1492 | IWL_ERR(priv, "request for firmware file '%s' failed.\n", | |
1493 | priv->firmware_name); | |
1494 | goto try_again; | |
b481de9c ZY |
1495 | } |
1496 | ||
b08dfd04 JB |
1497 | IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", |
1498 | priv->firmware_name, ucode_raw->size); | |
b481de9c | 1499 | |
cc0f555d JS |
1500 | /* Make sure that we got at least the v1 header! */ |
1501 | if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) { | |
15b1687c | 1502 | IWL_ERR(priv, "File size way too small!\n"); |
b08dfd04 | 1503 | goto try_again; |
b481de9c ZY |
1504 | } |
1505 | ||
1506 | /* Data from ucode file: header followed by uCode images */ | |
cc0f555d | 1507 | ucode = (struct iwl_ucode_header *)ucode_raw->data; |
b481de9c | 1508 | |
c02b3acd | 1509 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
a0987a8d | 1510 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
cc0f555d JS |
1511 | build = priv->cfg->ops->ucode->get_build(ucode, api_ver); |
1512 | inst_size = priv->cfg->ops->ucode->get_inst_size(ucode, api_ver); | |
1513 | data_size = priv->cfg->ops->ucode->get_data_size(ucode, api_ver); | |
1514 | init_size = priv->cfg->ops->ucode->get_init_size(ucode, api_ver); | |
1515 | init_data_size = | |
1516 | priv->cfg->ops->ucode->get_init_data_size(ucode, api_ver); | |
1517 | boot_size = priv->cfg->ops->ucode->get_boot_size(ucode, api_ver); | |
1518 | src = priv->cfg->ops->ucode->get_data(ucode, api_ver); | |
b481de9c | 1519 | |
a0987a8d RC |
1520 | /* api_ver should match the api version forming part of the |
1521 | * firmware filename ... but we don't check for that and only rely | |
877d0310 | 1522 | * on the API version read from firmware header from here on forward */ |
a0987a8d RC |
1523 | |
1524 | if (api_ver < api_min || api_ver > api_max) { | |
15b1687c | 1525 | IWL_ERR(priv, "Driver unable to support your firmware API. " |
a0987a8d RC |
1526 | "Driver supports v%u, firmware is v%u.\n", |
1527 | api_max, api_ver); | |
b08dfd04 | 1528 | goto try_again; |
a0987a8d | 1529 | } |
b08dfd04 | 1530 | |
a0987a8d | 1531 | if (api_ver != api_max) |
978785a3 | 1532 | IWL_ERR(priv, "Firmware has old API version. Expected v%u, " |
a0987a8d RC |
1533 | "got v%u. New firmware can be obtained " |
1534 | "from http://www.intellinuxwireless.org.\n", | |
1535 | api_max, api_ver); | |
1536 | ||
978785a3 TW |
1537 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", |
1538 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
1539 | IWL_UCODE_MINOR(priv->ucode_ver), | |
1540 | IWL_UCODE_API(priv->ucode_ver), | |
1541 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
a0987a8d | 1542 | |
5ebeb5a6 RC |
1543 | snprintf(priv->hw->wiphy->fw_version, |
1544 | sizeof(priv->hw->wiphy->fw_version), | |
1545 | "%u.%u.%u.%u", | |
1546 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
1547 | IWL_UCODE_MINOR(priv->ucode_ver), | |
1548 | IWL_UCODE_API(priv->ucode_ver), | |
1549 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
1550 | ||
cc0f555d JS |
1551 | if (build) |
1552 | IWL_DEBUG_INFO(priv, "Build %u\n", build); | |
1553 | ||
abdc2d62 JS |
1554 | eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); |
1555 | IWL_DEBUG_INFO(priv, "NVM Type: %s, version: 0x%x\n", | |
1556 | (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) | |
1557 | ? "OTP" : "EEPROM", eeprom_ver); | |
1558 | ||
e1623446 | 1559 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
a0987a8d | 1560 | priv->ucode_ver); |
e1623446 | 1561 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", |
b481de9c | 1562 | inst_size); |
e1623446 | 1563 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n", |
b481de9c | 1564 | data_size); |
e1623446 | 1565 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n", |
b481de9c | 1566 | init_size); |
e1623446 | 1567 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n", |
b481de9c | 1568 | init_data_size); |
e1623446 | 1569 | IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", |
b481de9c ZY |
1570 | boot_size); |
1571 | ||
b08dfd04 JB |
1572 | /* |
1573 | * For any of the failures below (before allocating pci memory) | |
1574 | * we will try to load a version with a smaller API -- maybe the | |
1575 | * user just got a corrupted version of the latest API. | |
1576 | */ | |
1577 | ||
b481de9c | 1578 | /* Verify size of file vs. image size info in file's header */ |
cc0f555d JS |
1579 | if (ucode_raw->size != |
1580 | priv->cfg->ops->ucode->get_header_size(api_ver) + | |
b481de9c ZY |
1581 | inst_size + data_size + init_size + |
1582 | init_data_size + boot_size) { | |
1583 | ||
cc0f555d JS |
1584 | IWL_DEBUG_INFO(priv, |
1585 | "uCode file size %d does not match expected size\n", | |
1586 | (int)ucode_raw->size); | |
b08dfd04 | 1587 | goto try_again; |
b481de9c ZY |
1588 | } |
1589 | ||
1590 | /* Verify that uCode images will fit in card's SRAM */ | |
099b40b7 | 1591 | if (inst_size > priv->hw_params.max_inst_size) { |
e1623446 | 1592 | IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", |
90e759d1 | 1593 | inst_size); |
b08dfd04 | 1594 | goto try_again; |
b481de9c ZY |
1595 | } |
1596 | ||
099b40b7 | 1597 | if (data_size > priv->hw_params.max_data_size) { |
e1623446 | 1598 | IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", |
90e759d1 | 1599 | data_size); |
b08dfd04 | 1600 | goto try_again; |
b481de9c | 1601 | } |
099b40b7 | 1602 | if (init_size > priv->hw_params.max_inst_size) { |
e1623446 TW |
1603 | IWL_INFO(priv, "uCode init instr len %d too large to fit in\n", |
1604 | init_size); | |
b08dfd04 | 1605 | goto try_again; |
b481de9c | 1606 | } |
099b40b7 | 1607 | if (init_data_size > priv->hw_params.max_data_size) { |
e1623446 | 1608 | IWL_INFO(priv, "uCode init data len %d too large to fit in\n", |
90e759d1 | 1609 | init_data_size); |
b08dfd04 | 1610 | goto try_again; |
b481de9c | 1611 | } |
099b40b7 | 1612 | if (boot_size > priv->hw_params.max_bsm_size) { |
e1623446 TW |
1613 | IWL_INFO(priv, "uCode boot instr len %d too large to fit in\n", |
1614 | boot_size); | |
b08dfd04 | 1615 | goto try_again; |
b481de9c ZY |
1616 | } |
1617 | ||
1618 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
1619 | ||
1620 | /* Runtime instructions and 2 copies of data: | |
1621 | * 1) unmodified from disk | |
1622 | * 2) backup cache for save/restore during power-downs */ | |
1623 | priv->ucode_code.len = inst_size; | |
98c92211 | 1624 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
1625 | |
1626 | priv->ucode_data.len = data_size; | |
98c92211 | 1627 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
1628 | |
1629 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 1630 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 1631 | |
1f304e4e ZY |
1632 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
1633 | !priv->ucode_data_backup.v_addr) | |
1634 | goto err_pci_alloc; | |
1635 | ||
b481de9c | 1636 | /* Initialization instructions and data */ |
90e759d1 TW |
1637 | if (init_size && init_data_size) { |
1638 | priv->ucode_init.len = init_size; | |
98c92211 | 1639 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
1640 | |
1641 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 1642 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
1643 | |
1644 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
1645 | goto err_pci_alloc; | |
1646 | } | |
b481de9c ZY |
1647 | |
1648 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
1649 | if (boot_size) { |
1650 | priv->ucode_boot.len = boot_size; | |
98c92211 | 1651 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 1652 | |
90e759d1 TW |
1653 | if (!priv->ucode_boot.v_addr) |
1654 | goto err_pci_alloc; | |
1655 | } | |
b481de9c ZY |
1656 | |
1657 | /* Copy images into buffers for card's bus-master reads ... */ | |
1658 | ||
1659 | /* Runtime instructions (first block of data in file) */ | |
cc0f555d | 1660 | len = inst_size; |
e1623446 | 1661 | IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n", len); |
b481de9c | 1662 | memcpy(priv->ucode_code.v_addr, src, len); |
cc0f555d JS |
1663 | src += len; |
1664 | ||
e1623446 | 1665 | IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
b481de9c ZY |
1666 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); |
1667 | ||
1668 | /* Runtime data (2nd block) | |
5b9f8cd3 | 1669 | * NOTE: Copy into backup buffer will be done in iwl_up() */ |
cc0f555d | 1670 | len = data_size; |
e1623446 | 1671 | IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n", len); |
b481de9c ZY |
1672 | memcpy(priv->ucode_data.v_addr, src, len); |
1673 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
cc0f555d | 1674 | src += len; |
b481de9c ZY |
1675 | |
1676 | /* Initialization instructions (3rd block) */ | |
1677 | if (init_size) { | |
cc0f555d | 1678 | len = init_size; |
e1623446 | 1679 | IWL_DEBUG_INFO(priv, "Copying (but not loading) init instr len %Zd\n", |
90e759d1 | 1680 | len); |
b481de9c | 1681 | memcpy(priv->ucode_init.v_addr, src, len); |
cc0f555d | 1682 | src += len; |
b481de9c ZY |
1683 | } |
1684 | ||
1685 | /* Initialization data (4th block) */ | |
1686 | if (init_data_size) { | |
cc0f555d | 1687 | len = init_data_size; |
e1623446 | 1688 | IWL_DEBUG_INFO(priv, "Copying (but not loading) init data len %Zd\n", |
90e759d1 | 1689 | len); |
b481de9c | 1690 | memcpy(priv->ucode_init_data.v_addr, src, len); |
cc0f555d | 1691 | src += len; |
b481de9c ZY |
1692 | } |
1693 | ||
1694 | /* Bootstrap instructions (5th block) */ | |
cc0f555d | 1695 | len = boot_size; |
e1623446 | 1696 | IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n", len); |
b481de9c ZY |
1697 | memcpy(priv->ucode_boot.v_addr, src, len); |
1698 | ||
b08dfd04 JB |
1699 | /************************************************** |
1700 | * This is still part of probe() in a sense... | |
1701 | * | |
1702 | * 9. Setup and register with mac80211 and debugfs | |
1703 | **************************************************/ | |
1704 | err = iwl_mac_setup_register(priv); | |
1705 | if (err) | |
1706 | goto out_unbind; | |
1707 | ||
1708 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
1709 | if (err) | |
1710 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); | |
1711 | ||
b481de9c ZY |
1712 | /* We have our copies now, allow OS release its copies */ |
1713 | release_firmware(ucode_raw); | |
b08dfd04 JB |
1714 | return; |
1715 | ||
1716 | try_again: | |
1717 | /* try next, if any */ | |
1718 | if (iwl_request_firmware(priv, false)) | |
1719 | goto out_unbind; | |
1720 | release_firmware(ucode_raw); | |
1721 | return; | |
b481de9c ZY |
1722 | |
1723 | err_pci_alloc: | |
15b1687c | 1724 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
5b9f8cd3 | 1725 | iwl_dealloc_ucode_pci(priv); |
b08dfd04 JB |
1726 | out_unbind: |
1727 | device_release_driver(&priv->pci_dev->dev); | |
b481de9c | 1728 | release_firmware(ucode_raw); |
b481de9c ZY |
1729 | } |
1730 | ||
b7a79404 RC |
1731 | static const char *desc_lookup_text[] = { |
1732 | "OK", | |
1733 | "FAIL", | |
1734 | "BAD_PARAM", | |
1735 | "BAD_CHECKSUM", | |
1736 | "NMI_INTERRUPT_WDG", | |
1737 | "SYSASSERT", | |
1738 | "FATAL_ERROR", | |
1739 | "BAD_COMMAND", | |
1740 | "HW_ERROR_TUNE_LOCK", | |
1741 | "HW_ERROR_TEMPERATURE", | |
1742 | "ILLEGAL_CHAN_FREQ", | |
1743 | "VCC_NOT_STABLE", | |
1744 | "FH_ERROR", | |
1745 | "NMI_INTERRUPT_HOST", | |
1746 | "NMI_INTERRUPT_ACTION_PT", | |
1747 | "NMI_INTERRUPT_UNKNOWN", | |
1748 | "UCODE_VERSION_MISMATCH", | |
1749 | "HW_ERROR_ABS_LOCK", | |
1750 | "HW_ERROR_CAL_LOCK_FAIL", | |
1751 | "NMI_INTERRUPT_INST_ACTION_PT", | |
1752 | "NMI_INTERRUPT_DATA_ACTION_PT", | |
1753 | "NMI_TRM_HW_ER", | |
1754 | "NMI_INTERRUPT_TRM", | |
1755 | "NMI_INTERRUPT_BREAK_POINT" | |
1756 | "DEBUG_0", | |
1757 | "DEBUG_1", | |
1758 | "DEBUG_2", | |
1759 | "DEBUG_3", | |
a7fce6ee | 1760 | "ADVANCED SYSASSERT" |
b7a79404 RC |
1761 | }; |
1762 | ||
1763 | static const char *desc_lookup(int i) | |
1764 | { | |
1765 | int max = ARRAY_SIZE(desc_lookup_text) - 1; | |
1766 | ||
1767 | if (i < 0 || i > max) | |
1768 | i = max; | |
1769 | ||
1770 | return desc_lookup_text[i]; | |
1771 | } | |
1772 | ||
1773 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1774 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1775 | ||
1776 | void iwl_dump_nic_error_log(struct iwl_priv *priv) | |
1777 | { | |
1778 | u32 data2, line; | |
1779 | u32 desc, time, count, base, data1; | |
1780 | u32 blink1, blink2, ilink1, ilink2; | |
1781 | ||
1782 | if (priv->ucode_type == UCODE_INIT) | |
1783 | base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); | |
1784 | else | |
1785 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
1786 | ||
1787 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
212fb575 WYG |
1788 | IWL_ERR(priv, |
1789 | "Not valid error log pointer 0x%08X for %s uCode\n", | |
1790 | base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT"); | |
b7a79404 RC |
1791 | return; |
1792 | } | |
1793 | ||
1794 | count = iwl_read_targ_mem(priv, base); | |
1795 | ||
1796 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
1797 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); | |
1798 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
1799 | priv->status, count); | |
1800 | } | |
1801 | ||
1802 | desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); | |
1803 | blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); | |
1804 | blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); | |
1805 | ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); | |
1806 | ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); | |
1807 | data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); | |
1808 | data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); | |
1809 | line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); | |
1810 | time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); | |
1811 | ||
be1a71a1 JB |
1812 | trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line, |
1813 | blink1, blink2, ilink1, ilink2); | |
1814 | ||
b7a79404 RC |
1815 | IWL_ERR(priv, "Desc Time " |
1816 | "data1 data2 line\n"); | |
1817 | IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", | |
1818 | desc_lookup(desc), desc, time, data1, data2, line); | |
1819 | IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n"); | |
1820 | IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, | |
1821 | ilink1, ilink2); | |
1822 | ||
1823 | } | |
1824 | ||
1825 | #define EVENT_START_OFFSET (4 * sizeof(u32)) | |
1826 | ||
1827 | /** | |
1828 | * iwl_print_event_log - Dump error event log to syslog | |
1829 | * | |
1830 | */ | |
b03d7d0f WYG |
1831 | static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, |
1832 | u32 num_events, u32 mode, | |
1833 | int pos, char **buf, size_t bufsz) | |
b7a79404 RC |
1834 | { |
1835 | u32 i; | |
1836 | u32 base; /* SRAM byte address of event log header */ | |
1837 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1838 | u32 ptr; /* SRAM byte address of log data */ | |
1839 | u32 ev, time, data; /* event log data */ | |
e5854471 | 1840 | unsigned long reg_flags; |
b7a79404 RC |
1841 | |
1842 | if (num_events == 0) | |
b03d7d0f | 1843 | return pos; |
b7a79404 RC |
1844 | if (priv->ucode_type == UCODE_INIT) |
1845 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1846 | else | |
1847 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
1848 | ||
1849 | if (mode == 0) | |
1850 | event_size = 2 * sizeof(u32); | |
1851 | else | |
1852 | event_size = 3 * sizeof(u32); | |
1853 | ||
1854 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1855 | ||
e5854471 BC |
1856 | /* Make sure device is powered up for SRAM reads */ |
1857 | spin_lock_irqsave(&priv->reg_lock, reg_flags); | |
1858 | iwl_grab_nic_access(priv); | |
1859 | ||
1860 | /* Set starting address; reads will auto-increment */ | |
1861 | _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr); | |
1862 | rmb(); | |
1863 | ||
b7a79404 RC |
1864 | /* "time" is actually "data" for mode 0 (no timestamp). |
1865 | * place event id # at far right for easier visual parsing. */ | |
1866 | for (i = 0; i < num_events; i++) { | |
e5854471 BC |
1867 | ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
1868 | time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
b7a79404 RC |
1869 | if (mode == 0) { |
1870 | /* data, ev */ | |
b03d7d0f WYG |
1871 | if (bufsz) { |
1872 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1873 | "EVT_LOG:0x%08x:%04u\n", | |
1874 | time, ev); | |
1875 | } else { | |
1876 | trace_iwlwifi_dev_ucode_event(priv, 0, | |
1877 | time, ev); | |
1878 | IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", | |
1879 | time, ev); | |
1880 | } | |
b7a79404 | 1881 | } else { |
e5854471 | 1882 | data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b03d7d0f WYG |
1883 | if (bufsz) { |
1884 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1885 | "EVT_LOGT:%010u:0x%08x:%04u\n", | |
1886 | time, data, ev); | |
1887 | } else { | |
1888 | IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", | |
b7a79404 | 1889 | time, data, ev); |
b03d7d0f WYG |
1890 | trace_iwlwifi_dev_ucode_event(priv, time, |
1891 | data, ev); | |
1892 | } | |
b7a79404 RC |
1893 | } |
1894 | } | |
e5854471 BC |
1895 | |
1896 | /* Allow device to power down */ | |
1897 | iwl_release_nic_access(priv); | |
1898 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
b03d7d0f | 1899 | return pos; |
b7a79404 RC |
1900 | } |
1901 | ||
c341ddb2 WYG |
1902 | /** |
1903 | * iwl_print_last_event_logs - Dump the newest # of event log to syslog | |
1904 | */ | |
b03d7d0f WYG |
1905 | static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity, |
1906 | u32 num_wraps, u32 next_entry, | |
1907 | u32 size, u32 mode, | |
1908 | int pos, char **buf, size_t bufsz) | |
c341ddb2 WYG |
1909 | { |
1910 | /* | |
1911 | * display the newest DEFAULT_LOG_ENTRIES entries | |
1912 | * i.e the entries just before the next ont that uCode would fill. | |
1913 | */ | |
1914 | if (num_wraps) { | |
1915 | if (next_entry < size) { | |
b03d7d0f WYG |
1916 | pos = iwl_print_event_log(priv, |
1917 | capacity - (size - next_entry), | |
1918 | size - next_entry, mode, | |
1919 | pos, buf, bufsz); | |
1920 | pos = iwl_print_event_log(priv, 0, | |
1921 | next_entry, mode, | |
1922 | pos, buf, bufsz); | |
c341ddb2 | 1923 | } else |
b03d7d0f WYG |
1924 | pos = iwl_print_event_log(priv, next_entry - size, |
1925 | size, mode, pos, buf, bufsz); | |
c341ddb2 | 1926 | } else { |
b03d7d0f WYG |
1927 | if (next_entry < size) { |
1928 | pos = iwl_print_event_log(priv, 0, next_entry, | |
1929 | mode, pos, buf, bufsz); | |
1930 | } else { | |
1931 | pos = iwl_print_event_log(priv, next_entry - size, | |
1932 | size, mode, pos, buf, bufsz); | |
1933 | } | |
c341ddb2 | 1934 | } |
b03d7d0f | 1935 | return pos; |
c341ddb2 WYG |
1936 | } |
1937 | ||
84c40692 BC |
1938 | /* For sanity check only. Actual size is determined by uCode, typ. 512 */ |
1939 | #define MAX_EVENT_LOG_SIZE (512) | |
1940 | ||
c341ddb2 WYG |
1941 | #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20) |
1942 | ||
b03d7d0f WYG |
1943 | int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, |
1944 | char **buf, bool display) | |
b7a79404 RC |
1945 | { |
1946 | u32 base; /* SRAM byte address of event log header */ | |
1947 | u32 capacity; /* event log capacity in # entries */ | |
1948 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1949 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1950 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1951 | u32 size; /* # entries that we'll print */ | |
b03d7d0f WYG |
1952 | int pos = 0; |
1953 | size_t bufsz = 0; | |
b7a79404 RC |
1954 | |
1955 | if (priv->ucode_type == UCODE_INIT) | |
1956 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1957 | else | |
1958 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
1959 | ||
1960 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
212fb575 WYG |
1961 | IWL_ERR(priv, |
1962 | "Invalid event log pointer 0x%08X for %s uCode\n", | |
1963 | base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT"); | |
937c397e | 1964 | return -EINVAL; |
b7a79404 RC |
1965 | } |
1966 | ||
1967 | /* event log header */ | |
1968 | capacity = iwl_read_targ_mem(priv, base); | |
1969 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1970 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1971 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
1972 | ||
84c40692 BC |
1973 | if (capacity > MAX_EVENT_LOG_SIZE) { |
1974 | IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n", | |
1975 | capacity, MAX_EVENT_LOG_SIZE); | |
1976 | capacity = MAX_EVENT_LOG_SIZE; | |
1977 | } | |
1978 | ||
1979 | if (next_entry > MAX_EVENT_LOG_SIZE) { | |
1980 | IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", | |
1981 | next_entry, MAX_EVENT_LOG_SIZE); | |
1982 | next_entry = MAX_EVENT_LOG_SIZE; | |
1983 | } | |
1984 | ||
b7a79404 RC |
1985 | size = num_wraps ? capacity : next_entry; |
1986 | ||
1987 | /* bail out if nothing in log */ | |
1988 | if (size == 0) { | |
1989 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); | |
b03d7d0f | 1990 | return pos; |
b7a79404 RC |
1991 | } |
1992 | ||
c341ddb2 | 1993 | #ifdef CONFIG_IWLWIFI_DEBUG |
521d9bce | 1994 | if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) |
c341ddb2 WYG |
1995 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) |
1996 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
1997 | #else | |
1998 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) | |
1999 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
2000 | #endif | |
2001 | IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n", | |
2002 | size); | |
b7a79404 | 2003 | |
c341ddb2 | 2004 | #ifdef CONFIG_IWLWIFI_DEBUG |
b03d7d0f WYG |
2005 | if (display) { |
2006 | if (full_log) | |
2007 | bufsz = capacity * 48; | |
2008 | else | |
2009 | bufsz = size * 48; | |
2010 | *buf = kmalloc(bufsz, GFP_KERNEL); | |
2011 | if (!*buf) | |
937c397e | 2012 | return -ENOMEM; |
b03d7d0f | 2013 | } |
c341ddb2 WYG |
2014 | if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) { |
2015 | /* | |
2016 | * if uCode has wrapped back to top of log, | |
2017 | * start at the oldest entry, | |
2018 | * i.e the next one that uCode would fill. | |
2019 | */ | |
2020 | if (num_wraps) | |
b03d7d0f WYG |
2021 | pos = iwl_print_event_log(priv, next_entry, |
2022 | capacity - next_entry, mode, | |
2023 | pos, buf, bufsz); | |
c341ddb2 | 2024 | /* (then/else) start at top of log */ |
b03d7d0f WYG |
2025 | pos = iwl_print_event_log(priv, 0, |
2026 | next_entry, mode, pos, buf, bufsz); | |
c341ddb2 | 2027 | } else |
b03d7d0f WYG |
2028 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, |
2029 | next_entry, size, mode, | |
2030 | pos, buf, bufsz); | |
c341ddb2 | 2031 | #else |
b03d7d0f WYG |
2032 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, |
2033 | next_entry, size, mode, | |
2034 | pos, buf, bufsz); | |
b7a79404 | 2035 | #endif |
b03d7d0f | 2036 | return pos; |
c341ddb2 | 2037 | } |
b7a79404 | 2038 | |
b481de9c | 2039 | /** |
4a4a9e81 | 2040 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 2041 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 2042 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 2043 | */ |
4a4a9e81 | 2044 | static void iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 2045 | { |
57aab75a | 2046 | int ret = 0; |
b481de9c | 2047 | |
e1623446 | 2048 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c ZY |
2049 | |
2050 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
2051 | /* We had an error bringing up the hardware, so take it | |
2052 | * all the way back down so we can try again */ | |
e1623446 | 2053 | IWL_DEBUG_INFO(priv, "Alive failed.\n"); |
b481de9c ZY |
2054 | goto restart; |
2055 | } | |
2056 | ||
2057 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
2058 | * This is a paranoid check, because we would not have gotten the | |
2059 | * "runtime" alive if code weren't properly loaded. */ | |
b0692f2f | 2060 | if (iwl_verify_ucode(priv)) { |
b481de9c ZY |
2061 | /* Runtime instruction load was bad; |
2062 | * take it all the way back down so we can try again */ | |
e1623446 | 2063 | IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); |
b481de9c ZY |
2064 | goto restart; |
2065 | } | |
2066 | ||
57aab75a TW |
2067 | ret = priv->cfg->ops->lib->alive_notify(priv); |
2068 | if (ret) { | |
39aadf8c WT |
2069 | IWL_WARN(priv, |
2070 | "Could not complete ALIVE transition [ntf]: %d\n", ret); | |
b481de9c ZY |
2071 | goto restart; |
2072 | } | |
2073 | ||
5b9f8cd3 | 2074 | /* After the ALIVE response, we can send host commands to the uCode */ |
b481de9c ZY |
2075 | set_bit(STATUS_ALIVE, &priv->status); |
2076 | ||
b74e31a9 WYG |
2077 | if (priv->cfg->ops->lib->recover_from_tx_stall) { |
2078 | /* Enable timer to monitor the driver queues */ | |
2079 | mod_timer(&priv->monitor_recover, | |
2080 | jiffies + | |
2081 | msecs_to_jiffies(priv->cfg->monitor_recover_period)); | |
2082 | } | |
2083 | ||
fee1247a | 2084 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
2085 | return; |
2086 | ||
36d6825b | 2087 | ieee80211_wake_queues(priv->hw); |
b481de9c | 2088 | |
470ab2dd | 2089 | priv->active_rate = IWL_RATES_MASK; |
b481de9c | 2090 | |
2f748dec WYG |
2091 | /* Configure Tx antenna selection based on H/W config */ |
2092 | if (priv->cfg->ops->hcmd->set_tx_ant) | |
2093 | priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant); | |
2094 | ||
3109ece1 | 2095 | if (iwl_is_associated(priv)) { |
c1adf9fb GG |
2096 | struct iwl_rxon_cmd *active_rxon = |
2097 | (struct iwl_rxon_cmd *)&priv->active_rxon; | |
019fb97d MA |
2098 | /* apply any changes in staging */ |
2099 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
b481de9c ZY |
2100 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
2101 | } else { | |
2102 | /* Initialize our rx_config data */ | |
5b9f8cd3 | 2103 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
45823531 AK |
2104 | |
2105 | if (priv->cfg->ops->hcmd->set_rxon_chain) | |
2106 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
2107 | ||
b481de9c ZY |
2108 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
2109 | } | |
2110 | ||
9fbab516 | 2111 | /* Configure Bluetooth device coexistence support */ |
5b9f8cd3 | 2112 | iwl_send_bt_config(priv); |
b481de9c | 2113 | |
4a4a9e81 TW |
2114 | iwl_reset_run_time_calib(priv); |
2115 | ||
b481de9c | 2116 | /* Configure the adapter for unassociated operation */ |
e0158e61 | 2117 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
2118 | |
2119 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 2120 | iwl_rf_kill_ct_config(priv); |
5a66926a | 2121 | |
e932a609 | 2122 | iwl_leds_init(priv); |
fe00b5a5 | 2123 | |
e1623446 | 2124 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
a9f46786 | 2125 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 2126 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c | 2127 | |
e312c24c | 2128 | iwl_power_update_mode(priv, true); |
7e246191 RC |
2129 | IWL_DEBUG_INFO(priv, "Updated power mode\n"); |
2130 | ||
c46fbefa | 2131 | |
b481de9c ZY |
2132 | return; |
2133 | ||
2134 | restart: | |
2135 | queue_work(priv->workqueue, &priv->restart); | |
2136 | } | |
2137 | ||
4e39317d | 2138 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 2139 | |
5b9f8cd3 | 2140 | static void __iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
2141 | { |
2142 | unsigned long flags; | |
2143 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c | 2144 | |
e1623446 | 2145 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c | 2146 | |
b481de9c ZY |
2147 | if (!exit_pending) |
2148 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
2149 | ||
7e246191 | 2150 | iwl_clear_ucode_stations(priv, true); |
b481de9c ZY |
2151 | |
2152 | /* Unblock any waiting calls */ | |
2153 | wake_up_interruptible_all(&priv->wait_command_queue); | |
2154 | ||
b481de9c ZY |
2155 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
2156 | * exiting the module */ | |
2157 | if (!exit_pending) | |
2158 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
2159 | ||
2160 | /* stop and reset the on-board processor */ | |
3395f6e9 | 2161 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
2162 | |
2163 | /* tell the device to stop sending interrupts */ | |
0359facc | 2164 | spin_lock_irqsave(&priv->lock, flags); |
5b9f8cd3 | 2165 | iwl_disable_interrupts(priv); |
0359facc MA |
2166 | spin_unlock_irqrestore(&priv->lock, flags); |
2167 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
2168 | |
2169 | if (priv->mac80211_registered) | |
2170 | ieee80211_stop_queues(priv->hw); | |
2171 | ||
5b9f8cd3 | 2172 | /* If we have not previously called iwl_init() then |
a60e77e5 | 2173 | * clear all bits but the RF Kill bit and return */ |
fee1247a | 2174 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
2175 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2176 | STATUS_RF_KILL_HW | | |
9788864e RC |
2177 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2178 | STATUS_GEO_CONFIGURED | | |
052ec3f1 MA |
2179 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
2180 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
2181 | goto exit; |
2182 | } | |
2183 | ||
6da3a13e | 2184 | /* ...otherwise clear out all the status bits but the RF Kill |
a60e77e5 | 2185 | * bit and continue taking the NIC down. */ |
b481de9c ZY |
2186 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2187 | STATUS_RF_KILL_HW | | |
9788864e RC |
2188 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2189 | STATUS_GEO_CONFIGURED | | |
b481de9c | 2190 | test_bit(STATUS_FW_ERROR, &priv->status) << |
052ec3f1 MA |
2191 | STATUS_FW_ERROR | |
2192 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2193 | STATUS_EXIT_PENDING; | |
b481de9c | 2194 | |
ef850d7c MA |
2195 | /* device going down, Stop using ICT table */ |
2196 | iwl_disable_ict(priv); | |
b481de9c | 2197 | |
da1bc453 | 2198 | iwl_txq_ctx_stop(priv); |
b3bbacb7 | 2199 | iwl_rxq_stop(priv); |
b481de9c | 2200 | |
309e731a BC |
2201 | /* Power-down device's busmaster DMA clocks */ |
2202 | iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); | |
b481de9c ZY |
2203 | udelay(5); |
2204 | ||
309e731a BC |
2205 | /* Make sure (redundant) we've released our request to stay awake */ |
2206 | iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); | |
2207 | ||
4d2ccdb9 BC |
2208 | /* Stop the device, and put it in low power state */ |
2209 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
2210 | ||
b481de9c | 2211 | exit: |
885ba202 | 2212 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
2213 | |
2214 | if (priv->ibss_beacon) | |
2215 | dev_kfree_skb(priv->ibss_beacon); | |
2216 | priv->ibss_beacon = NULL; | |
2217 | ||
2218 | /* clear out any free frames */ | |
fcab423d | 2219 | iwl_clear_free_frames(priv); |
b481de9c ZY |
2220 | } |
2221 | ||
5b9f8cd3 | 2222 | static void iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
2223 | { |
2224 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2225 | __iwl_down(priv); |
b481de9c | 2226 | mutex_unlock(&priv->mutex); |
b24d22b1 | 2227 | |
4e39317d | 2228 | iwl_cancel_deferred_work(priv); |
b481de9c ZY |
2229 | } |
2230 | ||
086ed117 MA |
2231 | #define HW_READY_TIMEOUT (50) |
2232 | ||
2233 | static int iwl_set_hw_ready(struct iwl_priv *priv) | |
2234 | { | |
2235 | int ret = 0; | |
2236 | ||
2237 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, | |
2238 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); | |
2239 | ||
2240 | /* See if we got it */ | |
2241 | ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, | |
2242 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, | |
2243 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, | |
2244 | HW_READY_TIMEOUT); | |
2245 | if (ret != -ETIMEDOUT) | |
2246 | priv->hw_ready = true; | |
2247 | else | |
2248 | priv->hw_ready = false; | |
2249 | ||
2250 | IWL_DEBUG_INFO(priv, "hardware %s\n", | |
2251 | (priv->hw_ready == 1) ? "ready" : "not ready"); | |
2252 | return ret; | |
2253 | } | |
2254 | ||
2255 | static int iwl_prepare_card_hw(struct iwl_priv *priv) | |
2256 | { | |
2257 | int ret = 0; | |
2258 | ||
2259 | IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter \n"); | |
2260 | ||
3354a0f6 MA |
2261 | ret = iwl_set_hw_ready(priv); |
2262 | if (priv->hw_ready) | |
2263 | return ret; | |
2264 | ||
2265 | /* If HW is not ready, prepare the conditions to check again */ | |
086ed117 MA |
2266 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
2267 | CSR_HW_IF_CONFIG_REG_PREPARE); | |
2268 | ||
2269 | ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, | |
2270 | ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, | |
2271 | CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); | |
2272 | ||
3354a0f6 | 2273 | /* HW should be ready by now, check again. */ |
086ed117 MA |
2274 | if (ret != -ETIMEDOUT) |
2275 | iwl_set_hw_ready(priv); | |
2276 | ||
2277 | return ret; | |
2278 | } | |
2279 | ||
b481de9c ZY |
2280 | #define MAX_HW_RESTARTS 5 |
2281 | ||
5b9f8cd3 | 2282 | static int __iwl_up(struct iwl_priv *priv) |
b481de9c | 2283 | { |
57aab75a TW |
2284 | int i; |
2285 | int ret; | |
b481de9c ZY |
2286 | |
2287 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
39aadf8c | 2288 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
b481de9c ZY |
2289 | return -EIO; |
2290 | } | |
2291 | ||
e903fbd4 | 2292 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
15b1687c | 2293 | IWL_ERR(priv, "ucode not available for device bringup\n"); |
e903fbd4 RC |
2294 | return -EIO; |
2295 | } | |
2296 | ||
086ed117 MA |
2297 | iwl_prepare_card_hw(priv); |
2298 | ||
2299 | if (!priv->hw_ready) { | |
2300 | IWL_WARN(priv, "Exit HW not ready\n"); | |
2301 | return -EIO; | |
2302 | } | |
2303 | ||
e655b9f0 | 2304 | /* If platform's RF_KILL switch is NOT set to KILL */ |
c1842d61 | 2305 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
e655b9f0 | 2306 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
3bff19c2 | 2307 | else |
e655b9f0 | 2308 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
3bff19c2 | 2309 | |
c1842d61 | 2310 | if (iwl_is_rfkill(priv)) { |
a60e77e5 JB |
2311 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, true); |
2312 | ||
5b9f8cd3 | 2313 | iwl_enable_interrupts(priv); |
a60e77e5 | 2314 | IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); |
c1842d61 | 2315 | return 0; |
b481de9c ZY |
2316 | } |
2317 | ||
3395f6e9 | 2318 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 2319 | |
1053d35f | 2320 | ret = iwl_hw_nic_init(priv); |
57aab75a | 2321 | if (ret) { |
15b1687c | 2322 | IWL_ERR(priv, "Unable to init nic\n"); |
57aab75a | 2323 | return ret; |
b481de9c ZY |
2324 | } |
2325 | ||
2326 | /* make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2327 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2328 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
2329 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
2330 | ||
2331 | /* clear (again), then enable host interrupts */ | |
3395f6e9 | 2332 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
5b9f8cd3 | 2333 | iwl_enable_interrupts(priv); |
b481de9c ZY |
2334 | |
2335 | /* really make sure rfkill handshake bits are cleared */ | |
3395f6e9 TW |
2336 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2337 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
2338 | |
2339 | /* Copy original ucode data image from disk into backup cache. | |
2340 | * This will be used to initialize the on-board processor's | |
2341 | * data SRAM for a clean start when the runtime program first loads. */ | |
2342 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 2343 | priv->ucode_data.len); |
b481de9c | 2344 | |
b481de9c ZY |
2345 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
2346 | ||
b481de9c ZY |
2347 | /* load bootstrap state machine, |
2348 | * load bootstrap program into processor's memory, | |
2349 | * prepare to load the "initialize" uCode */ | |
57aab75a | 2350 | ret = priv->cfg->ops->lib->load_ucode(priv); |
b481de9c | 2351 | |
57aab75a | 2352 | if (ret) { |
15b1687c WT |
2353 | IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n", |
2354 | ret); | |
b481de9c ZY |
2355 | continue; |
2356 | } | |
2357 | ||
2358 | /* start card; "initialize" will load runtime ucode */ | |
5b9f8cd3 | 2359 | iwl_nic_start(priv); |
b481de9c | 2360 | |
e1623446 | 2361 | IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); |
b481de9c ZY |
2362 | |
2363 | return 0; | |
2364 | } | |
2365 | ||
2366 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5b9f8cd3 | 2367 | __iwl_down(priv); |
64e72c3e | 2368 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
2369 | |
2370 | /* tried to restart and config the device for as long as our | |
2371 | * patience could withstand */ | |
15b1687c | 2372 | IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); |
b481de9c ZY |
2373 | return -EIO; |
2374 | } | |
2375 | ||
2376 | ||
2377 | /***************************************************************************** | |
2378 | * | |
2379 | * Workqueue callbacks | |
2380 | * | |
2381 | *****************************************************************************/ | |
2382 | ||
4a4a9e81 | 2383 | static void iwl_bg_init_alive_start(struct work_struct *data) |
b481de9c | 2384 | { |
c79dd5b5 TW |
2385 | struct iwl_priv *priv = |
2386 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
2387 | |
2388 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2389 | return; | |
2390 | ||
2391 | mutex_lock(&priv->mutex); | |
f3ccc08c | 2392 | priv->cfg->ops->lib->init_alive_start(priv); |
b481de9c ZY |
2393 | mutex_unlock(&priv->mutex); |
2394 | } | |
2395 | ||
4a4a9e81 | 2396 | static void iwl_bg_alive_start(struct work_struct *data) |
b481de9c | 2397 | { |
c79dd5b5 TW |
2398 | struct iwl_priv *priv = |
2399 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
2400 | |
2401 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2402 | return; | |
2403 | ||
258c44a0 MA |
2404 | /* enable dram interrupt */ |
2405 | iwl_reset_ict(priv); | |
2406 | ||
b481de9c | 2407 | mutex_lock(&priv->mutex); |
4a4a9e81 | 2408 | iwl_alive_start(priv); |
b481de9c ZY |
2409 | mutex_unlock(&priv->mutex); |
2410 | } | |
2411 | ||
16e727e8 EG |
2412 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
2413 | { | |
2414 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
2415 | run_time_calib_work); | |
2416 | ||
2417 | mutex_lock(&priv->mutex); | |
2418 | ||
2419 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
2420 | test_bit(STATUS_SCANNING, &priv->status)) { | |
2421 | mutex_unlock(&priv->mutex); | |
2422 | return; | |
2423 | } | |
2424 | ||
2425 | if (priv->start_calib) { | |
2426 | iwl_chain_noise_calibration(priv, &priv->statistics); | |
2427 | ||
2428 | iwl_sensitivity_calibration(priv, &priv->statistics); | |
2429 | } | |
2430 | ||
2431 | mutex_unlock(&priv->mutex); | |
2432 | return; | |
2433 | } | |
2434 | ||
5b9f8cd3 | 2435 | static void iwl_bg_restart(struct work_struct *data) |
b481de9c | 2436 | { |
c79dd5b5 | 2437 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
2438 | |
2439 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2440 | return; | |
2441 | ||
19cc1087 JB |
2442 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { |
2443 | mutex_lock(&priv->mutex); | |
2444 | priv->vif = NULL; | |
2445 | priv->is_open = 0; | |
2446 | mutex_unlock(&priv->mutex); | |
2447 | iwl_down(priv); | |
2448 | ieee80211_restart_hw(priv->hw); | |
2449 | } else { | |
2450 | iwl_down(priv); | |
80676518 JB |
2451 | |
2452 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2453 | return; | |
2454 | ||
2455 | mutex_lock(&priv->mutex); | |
2456 | __iwl_up(priv); | |
2457 | mutex_unlock(&priv->mutex); | |
19cc1087 | 2458 | } |
b481de9c ZY |
2459 | } |
2460 | ||
5b9f8cd3 | 2461 | static void iwl_bg_rx_replenish(struct work_struct *data) |
b481de9c | 2462 | { |
c79dd5b5 TW |
2463 | struct iwl_priv *priv = |
2464 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
2465 | |
2466 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2467 | return; | |
2468 | ||
2469 | mutex_lock(&priv->mutex); | |
a55360e4 | 2470 | iwl_rx_replenish(priv); |
b481de9c ZY |
2471 | mutex_unlock(&priv->mutex); |
2472 | } | |
2473 | ||
7878a5a4 MA |
2474 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
2475 | ||
5bbe233b | 2476 | void iwl_post_associate(struct iwl_priv *priv) |
b481de9c | 2477 | { |
b481de9c | 2478 | struct ieee80211_conf *conf = NULL; |
857485c0 | 2479 | int ret = 0; |
1ff50bda | 2480 | unsigned long flags; |
b481de9c | 2481 | |
05c914fe | 2482 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
15b1687c | 2483 | IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
2484 | return; |
2485 | } | |
2486 | ||
b481de9c ZY |
2487 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
2488 | return; | |
2489 | ||
b481de9c | 2490 | |
508e32e1 | 2491 | if (!priv->vif || !priv->is_open) |
948c171c | 2492 | return; |
508e32e1 | 2493 | |
2a421b91 | 2494 | iwl_scan_cancel_timeout(priv, 200); |
052c4b9f | 2495 | |
b481de9c ZY |
2496 | conf = ieee80211_get_hw_conf(priv->hw); |
2497 | ||
2498 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
e0158e61 | 2499 | iwlcore_commit_rxon(priv); |
b481de9c | 2500 | |
3195c1f3 | 2501 | iwl_setup_rxon_timing(priv); |
857485c0 | 2502 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2503 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2504 | if (ret) |
39aadf8c | 2505 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
2506 | "Attempting to continue.\n"); |
2507 | ||
2508 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
2509 | ||
42eb7c64 | 2510 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
4f85f5b3 | 2511 | |
45823531 AK |
2512 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
2513 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
2514 | ||
b481de9c ZY |
2515 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
2516 | ||
e1623446 | 2517 | IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", |
b481de9c ZY |
2518 | priv->assoc_id, priv->beacon_int); |
2519 | ||
2520 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2521 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2522 | else | |
2523 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2524 | ||
2525 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2526 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2527 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
2528 | else | |
2529 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
2530 | ||
05c914fe | 2531 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2532 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
2533 | ||
2534 | } | |
2535 | ||
e0158e61 | 2536 | iwlcore_commit_rxon(priv); |
b481de9c | 2537 | |
fe6b23dd RC |
2538 | IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", |
2539 | priv->assoc_id, priv->active_rxon.bssid_addr); | |
2540 | ||
b481de9c | 2541 | switch (priv->iw_mode) { |
05c914fe | 2542 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
2543 | break; |
2544 | ||
05c914fe | 2545 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 2546 | |
c46fbefa AK |
2547 | /* assume default assoc id */ |
2548 | priv->assoc_id = 1; | |
b481de9c | 2549 | |
fe6b23dd | 2550 | iwl_add_local_station(priv, priv->bssid, true); |
5b9f8cd3 | 2551 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
2552 | |
2553 | break; | |
2554 | ||
2555 | default: | |
15b1687c | 2556 | IWL_ERR(priv, "%s Should not be called in %d mode\n", |
3ac7f146 | 2557 | __func__, priv->iw_mode); |
b481de9c ZY |
2558 | break; |
2559 | } | |
2560 | ||
1ff50bda EG |
2561 | spin_lock_irqsave(&priv->lock, flags); |
2562 | iwl_activate_qos(priv, 0); | |
2563 | spin_unlock_irqrestore(&priv->lock, flags); | |
292ae174 | 2564 | |
04816448 GE |
2565 | /* the chain noise calibration will enabled PM upon completion |
2566 | * If chain noise has already been run, then we need to enable | |
2567 | * power management here */ | |
2568 | if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) | |
e312c24c | 2569 | iwl_power_update_mode(priv, false); |
c90a74ba EG |
2570 | |
2571 | /* Enable Rx differential gain and sensitivity calibrations */ | |
2572 | iwl_chain_noise_reset(priv); | |
2573 | priv->start_calib = 1; | |
2574 | ||
508e32e1 RC |
2575 | } |
2576 | ||
b481de9c ZY |
2577 | /***************************************************************************** |
2578 | * | |
2579 | * mac80211 entry point functions | |
2580 | * | |
2581 | *****************************************************************************/ | |
2582 | ||
154b25ce | 2583 | #define UCODE_READY_TIMEOUT (4 * HZ) |
5a66926a | 2584 | |
f0b6e2e8 RC |
2585 | /* |
2586 | * Not a mac80211 entry point function, but it fits in with all the | |
2587 | * other mac80211 functions grouped here. | |
2588 | */ | |
158bea07 | 2589 | static int iwl_mac_setup_register(struct iwl_priv *priv) |
f0b6e2e8 RC |
2590 | { |
2591 | int ret; | |
2592 | struct ieee80211_hw *hw = priv->hw; | |
2593 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
2594 | ||
2595 | /* Tell mac80211 our characteristics */ | |
2596 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
2597 | IEEE80211_HW_NOISE_DBM | | |
2598 | IEEE80211_HW_AMPDU_AGGREGATION | | |
2599 | IEEE80211_HW_SPECTRUM_MGMT; | |
2600 | ||
2601 | if (!priv->cfg->broken_powersave) | |
2602 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | | |
2603 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS; | |
2604 | ||
ba37a3d0 JB |
2605 | if (priv->cfg->sku & IWL_SKU_N) |
2606 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | | |
2607 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
2608 | ||
8d9698b3 | 2609 | hw->sta_data_size = sizeof(struct iwl_station_priv); |
f0b6e2e8 RC |
2610 | hw->wiphy->interface_modes = |
2611 | BIT(NL80211_IFTYPE_STATION) | | |
2612 | BIT(NL80211_IFTYPE_ADHOC); | |
2613 | ||
5be83de5 JB |
2614 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY | |
2615 | WIPHY_FLAG_DISABLE_BEACON_HINTS; | |
f0b6e2e8 RC |
2616 | |
2617 | /* | |
2618 | * For now, disable PS by default because it affects | |
2619 | * RX performance significantly. | |
2620 | */ | |
5be83de5 | 2621 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; |
f0b6e2e8 | 2622 | |
21b2d8bd | 2623 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX + 1; |
f0b6e2e8 RC |
2624 | /* we create the 802.11 header and a zero-length SSID element */ |
2625 | hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; | |
2626 | ||
2627 | /* Default value; 4 EDCA QOS priorities */ | |
2628 | hw->queues = 4; | |
2629 | ||
2630 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
2631 | ||
2632 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
2633 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
2634 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
2635 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
2636 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
2637 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
2638 | ||
2639 | ret = ieee80211_register_hw(priv->hw); | |
2640 | if (ret) { | |
2641 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
2642 | return ret; | |
2643 | } | |
2644 | priv->mac80211_registered = 1; | |
2645 | ||
2646 | return 0; | |
2647 | } | |
2648 | ||
2649 | ||
5b9f8cd3 | 2650 | static int iwl_mac_start(struct ieee80211_hw *hw) |
b481de9c | 2651 | { |
c79dd5b5 | 2652 | struct iwl_priv *priv = hw->priv; |
5a66926a | 2653 | int ret; |
b481de9c | 2654 | |
e1623446 | 2655 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c ZY |
2656 | |
2657 | /* we should be verifying the device is ready to be opened */ | |
2658 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2659 | ret = __iwl_up(priv); |
b481de9c | 2660 | mutex_unlock(&priv->mutex); |
5a66926a | 2661 | |
e655b9f0 | 2662 | if (ret) |
6cd0b1cb | 2663 | return ret; |
e655b9f0 | 2664 | |
c1842d61 TW |
2665 | if (iwl_is_rfkill(priv)) |
2666 | goto out; | |
2667 | ||
e1623446 | 2668 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); |
e655b9f0 | 2669 | |
fe9b6b72 | 2670 | /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from |
5a66926a | 2671 | * mac80211 will not be run successfully. */ |
154b25ce EG |
2672 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
2673 | test_bit(STATUS_READY, &priv->status), | |
2674 | UCODE_READY_TIMEOUT); | |
2675 | if (!ret) { | |
2676 | if (!test_bit(STATUS_READY, &priv->status)) { | |
15b1687c | 2677 | IWL_ERR(priv, "START_ALIVE timeout after %dms.\n", |
154b25ce | 2678 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); |
6cd0b1cb | 2679 | return -ETIMEDOUT; |
5a66926a | 2680 | } |
fe9b6b72 | 2681 | } |
0a078ffa | 2682 | |
e932a609 JB |
2683 | iwl_led_start(priv); |
2684 | ||
c1842d61 | 2685 | out: |
0a078ffa | 2686 | priv->is_open = 1; |
e1623446 | 2687 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
2688 | return 0; |
2689 | } | |
2690 | ||
5b9f8cd3 | 2691 | static void iwl_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 2692 | { |
c79dd5b5 | 2693 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2694 | |
e1623446 | 2695 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
948c171c | 2696 | |
19cc1087 | 2697 | if (!priv->is_open) |
e655b9f0 | 2698 | return; |
e655b9f0 | 2699 | |
b481de9c | 2700 | priv->is_open = 0; |
5a66926a | 2701 | |
5bddf549 | 2702 | if (iwl_is_ready_rf(priv) || test_bit(STATUS_SCAN_HW, &priv->status)) { |
e655b9f0 ZY |
2703 | /* stop mac, cancel any scan request and clear |
2704 | * RXON_FILTER_ASSOC_MSK BIT | |
2705 | */ | |
5a66926a | 2706 | mutex_lock(&priv->mutex); |
2a421b91 | 2707 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 2708 | mutex_unlock(&priv->mutex); |
fde3571f MA |
2709 | } |
2710 | ||
5b9f8cd3 | 2711 | iwl_down(priv); |
5a66926a ZY |
2712 | |
2713 | flush_workqueue(priv->workqueue); | |
6cd0b1cb HS |
2714 | |
2715 | /* enable interrupts again in order to receive rfkill changes */ | |
2716 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); | |
2717 | iwl_enable_interrupts(priv); | |
948c171c | 2718 | |
e1623446 | 2719 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
2720 | } |
2721 | ||
5b9f8cd3 | 2722 | static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 2723 | { |
c79dd5b5 | 2724 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2725 | |
e1623446 | 2726 | IWL_DEBUG_MACDUMP(priv, "enter\n"); |
b481de9c | 2727 | |
e1623446 | 2728 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 2729 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 2730 | |
e039fa4a | 2731 | if (iwl_tx_skb(priv, skb)) |
b481de9c ZY |
2732 | dev_kfree_skb_any(skb); |
2733 | ||
e1623446 | 2734 | IWL_DEBUG_MACDUMP(priv, "leave\n"); |
637f8837 | 2735 | return NETDEV_TX_OK; |
b481de9c ZY |
2736 | } |
2737 | ||
60690a6a | 2738 | void iwl_config_ap(struct iwl_priv *priv) |
b481de9c | 2739 | { |
857485c0 | 2740 | int ret = 0; |
1ff50bda | 2741 | unsigned long flags; |
b481de9c | 2742 | |
d986bcd1 | 2743 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
2744 | return; |
2745 | ||
2746 | /* The following should be done only at AP bring up */ | |
3195c1f3 | 2747 | if (!iwl_is_associated(priv)) { |
b481de9c ZY |
2748 | |
2749 | /* RXON - unassoc (to set timing command) */ | |
2750 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
e0158e61 | 2751 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
2752 | |
2753 | /* RXON Timing */ | |
3195c1f3 | 2754 | iwl_setup_rxon_timing(priv); |
857485c0 | 2755 | ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c | 2756 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
857485c0 | 2757 | if (ret) |
39aadf8c | 2758 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
2759 | "Attempting to continue.\n"); |
2760 | ||
f513dfff DH |
2761 | /* AP has all antennas */ |
2762 | priv->chain_noise_data.active_chains = | |
2763 | priv->hw_params.valid_rx_ant; | |
2764 | iwl_set_rxon_ht(priv, &priv->current_ht_config); | |
45823531 AK |
2765 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
2766 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
b481de9c ZY |
2767 | |
2768 | /* FIXME: what should be the assoc_id for AP? */ | |
2769 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); | |
2770 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2771 | priv->staging_rxon.flags |= | |
2772 | RXON_FLG_SHORT_PREAMBLE_MSK; | |
2773 | else | |
2774 | priv->staging_rxon.flags &= | |
2775 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2776 | ||
2777 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { | |
2778 | if (priv->assoc_capability & | |
2779 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
2780 | priv->staging_rxon.flags |= | |
2781 | RXON_FLG_SHORT_SLOT_MSK; | |
2782 | else | |
2783 | priv->staging_rxon.flags &= | |
2784 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2785 | ||
05c914fe | 2786 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
b481de9c ZY |
2787 | priv->staging_rxon.flags &= |
2788 | ~RXON_FLG_SHORT_SLOT_MSK; | |
2789 | } | |
2790 | /* restore RXON assoc */ | |
2791 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
e0158e61 | 2792 | iwlcore_commit_rxon(priv); |
f513dfff | 2793 | iwl_reset_qos(priv); |
1ff50bda EG |
2794 | spin_lock_irqsave(&priv->lock, flags); |
2795 | iwl_activate_qos(priv, 1); | |
2796 | spin_unlock_irqrestore(&priv->lock, flags); | |
9a9ca65f | 2797 | iwl_add_bcast_station(priv); |
e1493deb | 2798 | } |
5b9f8cd3 | 2799 | iwl_send_beacon_cmd(priv); |
b481de9c ZY |
2800 | |
2801 | /* FIXME - we need to add code here to detect a totally new | |
2802 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
2803 | * clear sta table, add BCAST sta... */ | |
2804 | } | |
2805 | ||
5b9f8cd3 | 2806 | static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw, |
b3fbdcf4 JB |
2807 | struct ieee80211_vif *vif, |
2808 | struct ieee80211_key_conf *keyconf, | |
2809 | struct ieee80211_sta *sta, | |
2810 | u32 iv32, u16 *phase1key) | |
ab885f8c | 2811 | { |
ab885f8c | 2812 | |
9f58671e | 2813 | struct iwl_priv *priv = hw->priv; |
e1623446 | 2814 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
ab885f8c | 2815 | |
b3fbdcf4 JB |
2816 | iwl_update_tkip_key(priv, keyconf, |
2817 | sta ? sta->addr : iwl_bcast_addr, | |
2818 | iv32, phase1key); | |
ab885f8c | 2819 | |
e1623446 | 2820 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
ab885f8c EG |
2821 | } |
2822 | ||
5b9f8cd3 | 2823 | static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
2824 | struct ieee80211_vif *vif, |
2825 | struct ieee80211_sta *sta, | |
b481de9c ZY |
2826 | struct ieee80211_key_conf *key) |
2827 | { | |
c79dd5b5 | 2828 | struct iwl_priv *priv = hw->priv; |
42986796 WT |
2829 | const u8 *addr; |
2830 | int ret; | |
2831 | u8 sta_id; | |
2832 | bool is_default_wep_key = false; | |
b481de9c | 2833 | |
e1623446 | 2834 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 2835 | |
90e8e424 | 2836 | if (priv->cfg->mod_params->sw_crypto) { |
e1623446 | 2837 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
b481de9c ZY |
2838 | return -EOPNOTSUPP; |
2839 | } | |
42986796 | 2840 | addr = sta ? sta->addr : iwl_bcast_addr; |
c587de0b | 2841 | sta_id = iwl_find_station(priv, addr); |
6974e363 | 2842 | if (sta_id == IWL_INVALID_STATION) { |
e1623446 | 2843 | IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n", |
e174961c | 2844 | addr); |
6974e363 | 2845 | return -EINVAL; |
b481de9c | 2846 | |
deb09c43 | 2847 | } |
b481de9c | 2848 | |
6974e363 | 2849 | mutex_lock(&priv->mutex); |
2a421b91 | 2850 | iwl_scan_cancel_timeout(priv, 100); |
6974e363 EG |
2851 | |
2852 | /* If we are getting WEP group key and we didn't receive any key mapping | |
2853 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
2854 | * in 1X mode. | |
2855 | * In legacy wep mode, we use another host command to the uCode */ | |
5425e490 | 2856 | if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id && |
05c914fe | 2857 | priv->iw_mode != NL80211_IFTYPE_AP) { |
6974e363 EG |
2858 | if (cmd == SET_KEY) |
2859 | is_default_wep_key = !priv->key_mapping_key; | |
2860 | else | |
ccc038ab EG |
2861 | is_default_wep_key = |
2862 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 2863 | } |
052c4b9f | 2864 | |
b481de9c | 2865 | switch (cmd) { |
deb09c43 | 2866 | case SET_KEY: |
6974e363 EG |
2867 | if (is_default_wep_key) |
2868 | ret = iwl_set_default_wep_key(priv, key); | |
deb09c43 | 2869 | else |
7480513f | 2870 | ret = iwl_set_dynamic_key(priv, key, sta_id); |
deb09c43 | 2871 | |
e1623446 | 2872 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); |
b481de9c ZY |
2873 | break; |
2874 | case DISABLE_KEY: | |
6974e363 EG |
2875 | if (is_default_wep_key) |
2876 | ret = iwl_remove_default_wep_key(priv, key); | |
deb09c43 | 2877 | else |
3ec47732 | 2878 | ret = iwl_remove_dynamic_key(priv, key, sta_id); |
deb09c43 | 2879 | |
e1623446 | 2880 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); |
b481de9c ZY |
2881 | break; |
2882 | default: | |
deb09c43 | 2883 | ret = -EINVAL; |
b481de9c ZY |
2884 | } |
2885 | ||
72e15d71 | 2886 | mutex_unlock(&priv->mutex); |
e1623446 | 2887 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 2888 | |
deb09c43 | 2889 | return ret; |
b481de9c ZY |
2890 | } |
2891 | ||
5b9f8cd3 | 2892 | static int iwl_mac_ampdu_action(struct ieee80211_hw *hw, |
c951ad35 | 2893 | struct ieee80211_vif *vif, |
d783b061 | 2894 | enum ieee80211_ampdu_mlme_action action, |
17741cdc | 2895 | struct ieee80211_sta *sta, u16 tid, u16 *ssn) |
d783b061 TW |
2896 | { |
2897 | struct iwl_priv *priv = hw->priv; | |
5c2207c6 | 2898 | int ret; |
d783b061 | 2899 | |
e1623446 | 2900 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", |
e174961c | 2901 | sta->addr, tid); |
d783b061 TW |
2902 | |
2903 | if (!(priv->cfg->sku & IWL_SKU_N)) | |
2904 | return -EACCES; | |
2905 | ||
2906 | switch (action) { | |
2907 | case IEEE80211_AMPDU_RX_START: | |
e1623446 | 2908 | IWL_DEBUG_HT(priv, "start Rx\n"); |
9f58671e | 2909 | return iwl_sta_rx_agg_start(priv, sta->addr, tid, *ssn); |
d783b061 | 2910 | case IEEE80211_AMPDU_RX_STOP: |
e1623446 | 2911 | IWL_DEBUG_HT(priv, "stop Rx\n"); |
5c2207c6 WYG |
2912 | ret = iwl_sta_rx_agg_stop(priv, sta->addr, tid); |
2913 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2914 | return 0; | |
2915 | else | |
2916 | return ret; | |
d783b061 | 2917 | case IEEE80211_AMPDU_TX_START: |
e1623446 | 2918 | IWL_DEBUG_HT(priv, "start Tx\n"); |
d5a0ffa3 WYG |
2919 | ret = iwl_tx_agg_start(priv, sta->addr, tid, ssn); |
2920 | if (ret == 0) { | |
2921 | priv->_agn.agg_tids_count++; | |
2922 | IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n", | |
2923 | priv->_agn.agg_tids_count); | |
2924 | } | |
2925 | return ret; | |
d783b061 | 2926 | case IEEE80211_AMPDU_TX_STOP: |
e1623446 | 2927 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
5c2207c6 | 2928 | ret = iwl_tx_agg_stop(priv, sta->addr, tid); |
d5a0ffa3 WYG |
2929 | if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) { |
2930 | priv->_agn.agg_tids_count--; | |
2931 | IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n", | |
2932 | priv->_agn.agg_tids_count); | |
2933 | } | |
5c2207c6 WYG |
2934 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
2935 | return 0; | |
2936 | else | |
2937 | return ret; | |
f0527971 WYG |
2938 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
2939 | /* do nothing */ | |
2940 | return -EOPNOTSUPP; | |
d783b061 | 2941 | default: |
e1623446 | 2942 | IWL_DEBUG_HT(priv, "unknown\n"); |
d783b061 TW |
2943 | return -EINVAL; |
2944 | break; | |
2945 | } | |
2946 | return 0; | |
2947 | } | |
9f58671e | 2948 | |
5b9f8cd3 | 2949 | static int iwl_mac_get_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
2950 | struct ieee80211_low_level_stats *stats) |
2951 | { | |
bf403db8 EK |
2952 | struct iwl_priv *priv = hw->priv; |
2953 | ||
2954 | priv = hw->priv; | |
e1623446 TW |
2955 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
2956 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
b481de9c ZY |
2957 | |
2958 | return 0; | |
2959 | } | |
2960 | ||
6ab10ff8 JB |
2961 | static void iwl_mac_sta_notify(struct ieee80211_hw *hw, |
2962 | struct ieee80211_vif *vif, | |
2963 | enum sta_notify_cmd cmd, | |
2964 | struct ieee80211_sta *sta) | |
2965 | { | |
2966 | struct iwl_priv *priv = hw->priv; | |
2967 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
2968 | int sta_id; | |
2969 | ||
6ab10ff8 | 2970 | switch (cmd) { |
6ab10ff8 JB |
2971 | case STA_NOTIFY_SLEEP: |
2972 | WARN_ON(!sta_priv->client); | |
2973 | sta_priv->asleep = true; | |
2974 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
2975 | ieee80211_sta_block_awake(hw, sta, true); | |
2976 | break; | |
2977 | case STA_NOTIFY_AWAKE: | |
2978 | WARN_ON(!sta_priv->client); | |
49dcc819 DH |
2979 | if (!sta_priv->asleep) |
2980 | break; | |
6ab10ff8 JB |
2981 | sta_priv->asleep = false; |
2982 | sta_id = iwl_find_station(priv, sta->addr); | |
2983 | if (sta_id != IWL_INVALID_STATION) | |
2984 | iwl_sta_modify_ps_wake(priv, sta_id); | |
2985 | break; | |
2986 | default: | |
2987 | break; | |
2988 | } | |
2989 | } | |
2990 | ||
fe6b23dd RC |
2991 | /** |
2992 | * iwl_restore_wepkeys - Restore WEP keys to device | |
2993 | */ | |
2994 | static void iwl_restore_wepkeys(struct iwl_priv *priv) | |
2995 | { | |
2996 | mutex_lock(&priv->mutex); | |
2997 | if (priv->iw_mode == NL80211_IFTYPE_STATION && | |
2998 | priv->default_wep_key && | |
2999 | iwl_send_static_wepkey_cmd(priv, 0)) | |
3000 | IWL_ERR(priv, "Could not send WEP static key\n"); | |
3001 | mutex_unlock(&priv->mutex); | |
3002 | } | |
3003 | ||
3004 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
3005 | struct ieee80211_vif *vif, | |
3006 | struct ieee80211_sta *sta) | |
3007 | { | |
3008 | struct iwl_priv *priv = hw->priv; | |
3009 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
3010 | bool is_ap = priv->iw_mode == NL80211_IFTYPE_STATION; | |
3011 | int ret; | |
3012 | u8 sta_id; | |
3013 | ||
3014 | IWL_DEBUG_INFO(priv, "received request to add station %pM\n", | |
3015 | sta->addr); | |
3016 | ||
3017 | atomic_set(&sta_priv->pending_frames, 0); | |
3018 | if (vif->type == NL80211_IFTYPE_AP) | |
3019 | sta_priv->client = true; | |
3020 | ||
3021 | ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap, | |
3022 | &sta_id); | |
3023 | if (ret) { | |
3024 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
3025 | sta->addr, ret); | |
3026 | /* Should we return success if return code is EEXIST ? */ | |
3027 | return ret; | |
3028 | } | |
3029 | ||
3030 | iwl_restore_wepkeys(priv); | |
3031 | ||
3032 | /* Initialize rate scaling */ | |
3033 | IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM \n", | |
3034 | sta->addr); | |
3035 | iwl_rs_rate_init(priv, sta, sta_id); | |
3036 | ||
3037 | return ret; | |
3038 | } | |
3039 | ||
b481de9c ZY |
3040 | /***************************************************************************** |
3041 | * | |
3042 | * sysfs attributes | |
3043 | * | |
3044 | *****************************************************************************/ | |
3045 | ||
0a6857e7 | 3046 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3047 | |
3048 | /* | |
3049 | * The following adds a new attribute to the sysfs representation | |
c3a739fa | 3050 | * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) |
b481de9c ZY |
3051 | * used for controlling the debug level. |
3052 | * | |
3053 | * See the level definitions in iwl for details. | |
a562a9dd | 3054 | * |
3d816c77 RC |
3055 | * The debug_level being managed using sysfs below is a per device debug |
3056 | * level that is used instead of the global debug level if it (the per | |
3057 | * device debug level) is set. | |
b481de9c | 3058 | */ |
8cf769c6 EK |
3059 | static ssize_t show_debug_level(struct device *d, |
3060 | struct device_attribute *attr, char *buf) | |
b481de9c | 3061 | { |
3d816c77 RC |
3062 | struct iwl_priv *priv = dev_get_drvdata(d); |
3063 | return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); | |
b481de9c | 3064 | } |
8cf769c6 EK |
3065 | static ssize_t store_debug_level(struct device *d, |
3066 | struct device_attribute *attr, | |
b481de9c ZY |
3067 | const char *buf, size_t count) |
3068 | { | |
928841b1 | 3069 | struct iwl_priv *priv = dev_get_drvdata(d); |
9257746f TW |
3070 | unsigned long val; |
3071 | int ret; | |
b481de9c | 3072 | |
9257746f TW |
3073 | ret = strict_strtoul(buf, 0, &val); |
3074 | if (ret) | |
978785a3 | 3075 | IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); |
20594eb0 | 3076 | else { |
3d816c77 | 3077 | priv->debug_level = val; |
20594eb0 WYG |
3078 | if (iwl_alloc_traffic_mem(priv)) |
3079 | IWL_ERR(priv, | |
3080 | "Not enough memory to generate traffic log\n"); | |
3081 | } | |
b481de9c ZY |
3082 | return strnlen(buf, count); |
3083 | } | |
3084 | ||
8cf769c6 EK |
3085 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
3086 | show_debug_level, store_debug_level); | |
3087 | ||
b481de9c | 3088 | |
0a6857e7 | 3089 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 3090 | |
b481de9c ZY |
3091 | |
3092 | static ssize_t show_temperature(struct device *d, | |
3093 | struct device_attribute *attr, char *buf) | |
3094 | { | |
928841b1 | 3095 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3096 | |
fee1247a | 3097 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3098 | return -EAGAIN; |
3099 | ||
91dbc5bd | 3100 | return sprintf(buf, "%d\n", priv->temperature); |
b481de9c ZY |
3101 | } |
3102 | ||
3103 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
3104 | ||
b481de9c ZY |
3105 | static ssize_t show_tx_power(struct device *d, |
3106 | struct device_attribute *attr, char *buf) | |
3107 | { | |
928841b1 | 3108 | struct iwl_priv *priv = dev_get_drvdata(d); |
91f39e8e JS |
3109 | |
3110 | if (!iwl_is_ready_rf(priv)) | |
3111 | return sprintf(buf, "off\n"); | |
3112 | else | |
3113 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); | |
b481de9c ZY |
3114 | } |
3115 | ||
3116 | static ssize_t store_tx_power(struct device *d, | |
3117 | struct device_attribute *attr, | |
3118 | const char *buf, size_t count) | |
3119 | { | |
928841b1 | 3120 | struct iwl_priv *priv = dev_get_drvdata(d); |
9257746f TW |
3121 | unsigned long val; |
3122 | int ret; | |
b481de9c | 3123 | |
9257746f TW |
3124 | ret = strict_strtoul(buf, 10, &val); |
3125 | if (ret) | |
978785a3 | 3126 | IWL_INFO(priv, "%s is not in decimal form.\n", buf); |
5eadd94b WYG |
3127 | else { |
3128 | ret = iwl_set_tx_power(priv, val, false); | |
3129 | if (ret) | |
3130 | IWL_ERR(priv, "failed setting tx power (0x%d).\n", | |
3131 | ret); | |
3132 | else | |
3133 | ret = count; | |
3134 | } | |
3135 | return ret; | |
b481de9c ZY |
3136 | } |
3137 | ||
3138 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
3139 | ||
b481de9c ZY |
3140 | static ssize_t show_statistics(struct device *d, |
3141 | struct device_attribute *attr, char *buf) | |
3142 | { | |
c79dd5b5 | 3143 | struct iwl_priv *priv = dev_get_drvdata(d); |
8f91aecb | 3144 | u32 size = sizeof(struct iwl_notif_statistics); |
b481de9c | 3145 | u32 len = 0, ofs = 0; |
3ac7f146 | 3146 | u8 *data = (u8 *)&priv->statistics; |
b481de9c ZY |
3147 | int rc = 0; |
3148 | ||
fee1247a | 3149 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3150 | return -EAGAIN; |
3151 | ||
3152 | mutex_lock(&priv->mutex); | |
ef8d5529 | 3153 | rc = iwl_send_statistics_request(priv, CMD_SYNC, false); |
b481de9c ZY |
3154 | mutex_unlock(&priv->mutex); |
3155 | ||
3156 | if (rc) { | |
3157 | len = sprintf(buf, | |
3158 | "Error sending statistics request: 0x%08X\n", rc); | |
3159 | return len; | |
3160 | } | |
3161 | ||
3162 | while (size && (PAGE_SIZE - len)) { | |
3163 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3164 | PAGE_SIZE - len, 1); | |
3165 | len = strlen(buf); | |
3166 | if (PAGE_SIZE - len) | |
3167 | buf[len++] = '\n'; | |
3168 | ||
3169 | ofs += 16; | |
3170 | size -= min(size, 16U); | |
3171 | } | |
3172 | ||
3173 | return len; | |
3174 | } | |
3175 | ||
3176 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
3177 | ||
01abfbb2 WYG |
3178 | static ssize_t show_rts_ht_protection(struct device *d, |
3179 | struct device_attribute *attr, char *buf) | |
3180 | { | |
3181 | struct iwl_priv *priv = dev_get_drvdata(d); | |
3182 | ||
3183 | return sprintf(buf, "%s\n", | |
3184 | priv->cfg->use_rts_for_ht ? "RTS/CTS" : "CTS-to-self"); | |
3185 | } | |
3186 | ||
3187 | static ssize_t store_rts_ht_protection(struct device *d, | |
3188 | struct device_attribute *attr, | |
3189 | const char *buf, size_t count) | |
3190 | { | |
3191 | struct iwl_priv *priv = dev_get_drvdata(d); | |
3192 | unsigned long val; | |
3193 | int ret; | |
3194 | ||
3195 | ret = strict_strtoul(buf, 10, &val); | |
3196 | if (ret) | |
3197 | IWL_INFO(priv, "Input is not in decimal form.\n"); | |
3198 | else { | |
3199 | if (!iwl_is_associated(priv)) | |
3200 | priv->cfg->use_rts_for_ht = val ? true : false; | |
3201 | else | |
3202 | IWL_ERR(priv, "Sta associated with AP - " | |
3203 | "Change protection mechanism is not allowed\n"); | |
3204 | ret = count; | |
3205 | } | |
3206 | return ret; | |
3207 | } | |
3208 | ||
3209 | static DEVICE_ATTR(rts_ht_protection, S_IWUSR | S_IRUGO, | |
3210 | show_rts_ht_protection, store_rts_ht_protection); | |
3211 | ||
b481de9c | 3212 | |
b481de9c ZY |
3213 | /***************************************************************************** |
3214 | * | |
3215 | * driver setup and teardown | |
3216 | * | |
3217 | *****************************************************************************/ | |
3218 | ||
4e39317d | 3219 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
b481de9c | 3220 | { |
d21050c7 | 3221 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c ZY |
3222 | |
3223 | init_waitqueue_head(&priv->wait_command_queue); | |
3224 | ||
5b9f8cd3 EG |
3225 | INIT_WORK(&priv->restart, iwl_bg_restart); |
3226 | INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); | |
5b9f8cd3 | 3227 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); |
16e727e8 | 3228 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
4a4a9e81 TW |
3229 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); |
3230 | INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); | |
2a421b91 | 3231 | |
2a421b91 | 3232 | iwl_setup_scan_deferred_work(priv); |
bb8c093b | 3233 | |
4e39317d EG |
3234 | if (priv->cfg->ops->lib->setup_deferred_work) |
3235 | priv->cfg->ops->lib->setup_deferred_work(priv); | |
3236 | ||
3237 | init_timer(&priv->statistics_periodic); | |
3238 | priv->statistics_periodic.data = (unsigned long)priv; | |
5b9f8cd3 | 3239 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
b481de9c | 3240 | |
a9e1cb6a WYG |
3241 | init_timer(&priv->ucode_trace); |
3242 | priv->ucode_trace.data = (unsigned long)priv; | |
3243 | priv->ucode_trace.function = iwl_bg_ucode_trace; | |
3244 | ||
b74e31a9 WYG |
3245 | if (priv->cfg->ops->lib->recover_from_tx_stall) { |
3246 | init_timer(&priv->monitor_recover); | |
3247 | priv->monitor_recover.data = (unsigned long)priv; | |
3248 | priv->monitor_recover.function = | |
3249 | priv->cfg->ops->lib->recover_from_tx_stall; | |
3250 | } | |
3251 | ||
ef850d7c MA |
3252 | if (!priv->cfg->use_isr_legacy) |
3253 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
3254 | iwl_irq_tasklet, (unsigned long)priv); | |
3255 | else | |
3256 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
3257 | iwl_irq_tasklet_legacy, (unsigned long)priv); | |
b481de9c ZY |
3258 | } |
3259 | ||
4e39317d | 3260 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 3261 | { |
4e39317d EG |
3262 | if (priv->cfg->ops->lib->cancel_deferred_work) |
3263 | priv->cfg->ops->lib->cancel_deferred_work(priv); | |
b481de9c | 3264 | |
3ae6a054 | 3265 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
3266 | cancel_delayed_work(&priv->scan_check); |
3267 | cancel_delayed_work(&priv->alive_start); | |
b481de9c | 3268 | cancel_work_sync(&priv->beacon_update); |
4e39317d | 3269 | del_timer_sync(&priv->statistics_periodic); |
a9e1cb6a | 3270 | del_timer_sync(&priv->ucode_trace); |
b74e31a9 WYG |
3271 | if (priv->cfg->ops->lib->recover_from_tx_stall) |
3272 | del_timer_sync(&priv->monitor_recover); | |
b481de9c ZY |
3273 | } |
3274 | ||
89f186a8 RC |
3275 | static void iwl_init_hw_rates(struct iwl_priv *priv, |
3276 | struct ieee80211_rate *rates) | |
3277 | { | |
3278 | int i; | |
3279 | ||
3280 | for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { | |
3281 | rates[i].bitrate = iwl_rates[i].ieee * 5; | |
3282 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
3283 | rates[i].hw_value_short = i; | |
3284 | rates[i].flags = 0; | |
3285 | if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { | |
3286 | /* | |
3287 | * If CCK != 1M then set short preamble rate flag. | |
3288 | */ | |
3289 | rates[i].flags |= | |
3290 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? | |
3291 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; | |
3292 | } | |
3293 | } | |
3294 | } | |
3295 | ||
3296 | static int iwl_init_drv(struct iwl_priv *priv) | |
3297 | { | |
3298 | int ret; | |
3299 | ||
3300 | priv->ibss_beacon = NULL; | |
3301 | ||
89f186a8 RC |
3302 | spin_lock_init(&priv->sta_lock); |
3303 | spin_lock_init(&priv->hcmd_lock); | |
3304 | ||
3305 | INIT_LIST_HEAD(&priv->free_frames); | |
3306 | ||
3307 | mutex_init(&priv->mutex); | |
d2dfe6df | 3308 | mutex_init(&priv->sync_cmd_mutex); |
89f186a8 | 3309 | |
89f186a8 RC |
3310 | priv->ieee_channels = NULL; |
3311 | priv->ieee_rates = NULL; | |
3312 | priv->band = IEEE80211_BAND_2GHZ; | |
3313 | ||
3314 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
ba37a3d0 | 3315 | priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; |
a13d276f | 3316 | priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; |
d5a0ffa3 | 3317 | priv->_agn.agg_tids_count = 0; |
89f186a8 | 3318 | |
8a472da4 WYG |
3319 | /* initialize force reset */ |
3320 | priv->force_reset[IWL_RF_RESET].reset_duration = | |
3321 | IWL_DELAY_NEXT_FORCE_RF_RESET; | |
3322 | priv->force_reset[IWL_FW_RESET].reset_duration = | |
3323 | IWL_DELAY_NEXT_FORCE_FW_RELOAD; | |
89f186a8 RC |
3324 | |
3325 | /* Choose which receivers/antennas to use */ | |
3326 | if (priv->cfg->ops->hcmd->set_rxon_chain) | |
3327 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
3328 | ||
3329 | iwl_init_scan_params(priv); | |
3330 | ||
3331 | iwl_reset_qos(priv); | |
3332 | ||
3333 | priv->qos_data.qos_active = 0; | |
3334 | priv->qos_data.qos_cap.val = 0; | |
3335 | ||
89f186a8 RC |
3336 | /* Set the tx_power_user_lmt to the lowest power level |
3337 | * this value will get overwritten by channel max power avg | |
3338 | * from eeprom */ | |
3339 | priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MIN; | |
3340 | ||
3341 | ret = iwl_init_channel_map(priv); | |
3342 | if (ret) { | |
3343 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); | |
3344 | goto err; | |
3345 | } | |
3346 | ||
3347 | ret = iwlcore_init_geos(priv); | |
3348 | if (ret) { | |
3349 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
3350 | goto err_free_channel_map; | |
3351 | } | |
3352 | iwl_init_hw_rates(priv, priv->ieee_rates); | |
3353 | ||
3354 | return 0; | |
3355 | ||
3356 | err_free_channel_map: | |
3357 | iwl_free_channel_map(priv); | |
3358 | err: | |
3359 | return ret; | |
3360 | } | |
3361 | ||
3362 | static void iwl_uninit_drv(struct iwl_priv *priv) | |
3363 | { | |
3364 | iwl_calib_free_results(priv); | |
3365 | iwlcore_free_geos(priv); | |
3366 | iwl_free_channel_map(priv); | |
3367 | kfree(priv->scan); | |
3368 | } | |
3369 | ||
5b9f8cd3 | 3370 | static struct attribute *iwl_sysfs_entries[] = { |
b481de9c | 3371 | &dev_attr_statistics.attr, |
b481de9c | 3372 | &dev_attr_temperature.attr, |
b481de9c | 3373 | &dev_attr_tx_power.attr, |
01abfbb2 | 3374 | &dev_attr_rts_ht_protection.attr, |
8cf769c6 EK |
3375 | #ifdef CONFIG_IWLWIFI_DEBUG |
3376 | &dev_attr_debug_level.attr, | |
3377 | #endif | |
b481de9c ZY |
3378 | NULL |
3379 | }; | |
3380 | ||
5b9f8cd3 | 3381 | static struct attribute_group iwl_attribute_group = { |
b481de9c | 3382 | .name = NULL, /* put in device directory */ |
5b9f8cd3 | 3383 | .attrs = iwl_sysfs_entries, |
b481de9c ZY |
3384 | }; |
3385 | ||
5b9f8cd3 EG |
3386 | static struct ieee80211_ops iwl_hw_ops = { |
3387 | .tx = iwl_mac_tx, | |
3388 | .start = iwl_mac_start, | |
3389 | .stop = iwl_mac_stop, | |
3390 | .add_interface = iwl_mac_add_interface, | |
3391 | .remove_interface = iwl_mac_remove_interface, | |
3392 | .config = iwl_mac_config, | |
5b9f8cd3 EG |
3393 | .configure_filter = iwl_configure_filter, |
3394 | .set_key = iwl_mac_set_key, | |
3395 | .update_tkip_key = iwl_mac_update_tkip_key, | |
3396 | .get_stats = iwl_mac_get_stats, | |
5b9f8cd3 EG |
3397 | .conf_tx = iwl_mac_conf_tx, |
3398 | .reset_tsf = iwl_mac_reset_tsf, | |
3399 | .bss_info_changed = iwl_bss_info_changed, | |
3400 | .ampdu_action = iwl_mac_ampdu_action, | |
6ab10ff8 JB |
3401 | .hw_scan = iwl_mac_hw_scan, |
3402 | .sta_notify = iwl_mac_sta_notify, | |
fe6b23dd RC |
3403 | .sta_add = iwlagn_mac_sta_add, |
3404 | .sta_remove = iwl_mac_sta_remove, | |
b481de9c ZY |
3405 | }; |
3406 | ||
5b9f8cd3 | 3407 | static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
3408 | { |
3409 | int err = 0; | |
c79dd5b5 | 3410 | struct iwl_priv *priv; |
b481de9c | 3411 | struct ieee80211_hw *hw; |
82b9a121 | 3412 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
0359facc | 3413 | unsigned long flags; |
6cd0b1cb | 3414 | u16 pci_cmd; |
b481de9c | 3415 | |
316c30d9 AK |
3416 | /************************ |
3417 | * 1. Allocating HW data | |
3418 | ************************/ | |
3419 | ||
6440adb5 CB |
3420 | /* Disabling hardware scan means that mac80211 will perform scans |
3421 | * "the hard way", rather than using device's scan. */ | |
1ea87396 | 3422 | if (cfg->mod_params->disable_hw_scan) { |
a562a9dd | 3423 | if (iwl_debug_level & IWL_DL_INFO) |
bf403db8 EK |
3424 | dev_printk(KERN_DEBUG, &(pdev->dev), |
3425 | "Disabling hw_scan\n"); | |
5b9f8cd3 | 3426 | iwl_hw_ops.hw_scan = NULL; |
b481de9c ZY |
3427 | } |
3428 | ||
5b9f8cd3 | 3429 | hw = iwl_alloc_all(cfg, &iwl_hw_ops); |
1d0a082d | 3430 | if (!hw) { |
b481de9c ZY |
3431 | err = -ENOMEM; |
3432 | goto out; | |
3433 | } | |
1d0a082d AK |
3434 | priv = hw->priv; |
3435 | /* At this point both hw and priv are allocated. */ | |
3436 | ||
b481de9c ZY |
3437 | SET_IEEE80211_DEV(hw, &pdev->dev); |
3438 | ||
e1623446 | 3439 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
82b9a121 | 3440 | priv->cfg = cfg; |
b481de9c | 3441 | priv->pci_dev = pdev; |
40cefda9 | 3442 | priv->inta_mask = CSR_INI_SET_MASK; |
316c30d9 | 3443 | |
0a6857e7 | 3444 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3445 | atomic_set(&priv->restrict_refcnt, 0); |
3446 | #endif | |
20594eb0 WYG |
3447 | if (iwl_alloc_traffic_mem(priv)) |
3448 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); | |
b481de9c | 3449 | |
316c30d9 AK |
3450 | /************************** |
3451 | * 2. Initializing PCI bus | |
3452 | **************************/ | |
3453 | if (pci_enable_device(pdev)) { | |
3454 | err = -ENODEV; | |
3455 | goto out_ieee80211_free_hw; | |
3456 | } | |
3457 | ||
3458 | pci_set_master(pdev); | |
3459 | ||
093d874c | 3460 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); |
316c30d9 | 3461 | if (!err) |
093d874c | 3462 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36)); |
cc2a8ea8 | 3463 | if (err) { |
093d874c | 3464 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
cc2a8ea8 | 3465 | if (!err) |
093d874c | 3466 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
cc2a8ea8 | 3467 | /* both attempts failed: */ |
316c30d9 | 3468 | if (err) { |
978785a3 | 3469 | IWL_WARN(priv, "No suitable DMA available.\n"); |
316c30d9 | 3470 | goto out_pci_disable_device; |
cc2a8ea8 | 3471 | } |
316c30d9 AK |
3472 | } |
3473 | ||
3474 | err = pci_request_regions(pdev, DRV_NAME); | |
3475 | if (err) | |
3476 | goto out_pci_disable_device; | |
3477 | ||
3478 | pci_set_drvdata(pdev, priv); | |
3479 | ||
316c30d9 AK |
3480 | |
3481 | /*********************** | |
3482 | * 3. Read REV register | |
3483 | ***********************/ | |
3484 | priv->hw_base = pci_iomap(pdev, 0, 0); | |
3485 | if (!priv->hw_base) { | |
3486 | err = -ENODEV; | |
3487 | goto out_pci_release_regions; | |
3488 | } | |
3489 | ||
e1623446 | 3490 | IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", |
316c30d9 | 3491 | (unsigned long long) pci_resource_len(pdev, 0)); |
e1623446 | 3492 | IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); |
316c30d9 | 3493 | |
731a29b7 | 3494 | /* these spin locks will be used in apm_ops.init and EEPROM access |
a8b50a0a MA |
3495 | * we should init now |
3496 | */ | |
3497 | spin_lock_init(&priv->reg_lock); | |
731a29b7 | 3498 | spin_lock_init(&priv->lock); |
4843b5a7 RC |
3499 | |
3500 | /* | |
3501 | * stop and reset the on-board processor just in case it is in a | |
3502 | * strange state ... like being left stranded by a primary kernel | |
3503 | * and this is now the kdump kernel trying to start up | |
3504 | */ | |
3505 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); | |
3506 | ||
b661c819 | 3507 | iwl_hw_detect(priv); |
c11362c0 | 3508 | IWL_INFO(priv, "Detected %s, REV=0x%X\n", |
b661c819 | 3509 | priv->cfg->name, priv->hw_rev); |
316c30d9 | 3510 | |
e7b63581 TW |
3511 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
3512 | * PCI Tx retries from interfering with C3 CPU state */ | |
3513 | pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); | |
3514 | ||
086ed117 MA |
3515 | iwl_prepare_card_hw(priv); |
3516 | if (!priv->hw_ready) { | |
3517 | IWL_WARN(priv, "Failed, HW not ready\n"); | |
3518 | goto out_iounmap; | |
3519 | } | |
3520 | ||
91238714 TW |
3521 | /***************** |
3522 | * 4. Read EEPROM | |
3523 | *****************/ | |
316c30d9 AK |
3524 | /* Read the EEPROM */ |
3525 | err = iwl_eeprom_init(priv); | |
3526 | if (err) { | |
15b1687c | 3527 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
316c30d9 AK |
3528 | goto out_iounmap; |
3529 | } | |
8614f360 TW |
3530 | err = iwl_eeprom_check_version(priv); |
3531 | if (err) | |
c8f16138 | 3532 | goto out_free_eeprom; |
8614f360 | 3533 | |
02883017 | 3534 | /* extract MAC Address */ |
316c30d9 | 3535 | iwl_eeprom_get_mac(priv, priv->mac_addr); |
e1623446 | 3536 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr); |
316c30d9 AK |
3537 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
3538 | ||
3539 | /************************ | |
3540 | * 5. Setup HW constants | |
3541 | ************************/ | |
da154e30 | 3542 | if (iwl_set_hw_params(priv)) { |
15b1687c | 3543 | IWL_ERR(priv, "failed to set hw parameters\n"); |
073d3f5f | 3544 | goto out_free_eeprom; |
316c30d9 AK |
3545 | } |
3546 | ||
3547 | /******************* | |
6ba87956 | 3548 | * 6. Setup priv |
316c30d9 | 3549 | *******************/ |
b481de9c | 3550 | |
6ba87956 | 3551 | err = iwl_init_drv(priv); |
bf85ea4f | 3552 | if (err) |
399f4900 | 3553 | goto out_free_eeprom; |
bf85ea4f | 3554 | /* At this point both hw and priv are initialized. */ |
316c30d9 | 3555 | |
316c30d9 | 3556 | /******************** |
09f9bf79 | 3557 | * 7. Setup services |
316c30d9 | 3558 | ********************/ |
0359facc | 3559 | spin_lock_irqsave(&priv->lock, flags); |
5b9f8cd3 | 3560 | iwl_disable_interrupts(priv); |
0359facc | 3561 | spin_unlock_irqrestore(&priv->lock, flags); |
316c30d9 | 3562 | |
6cd0b1cb HS |
3563 | pci_enable_msi(priv->pci_dev); |
3564 | ||
ef850d7c MA |
3565 | iwl_alloc_isr_ict(priv); |
3566 | err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr, | |
3567 | IRQF_SHARED, DRV_NAME, priv); | |
6cd0b1cb HS |
3568 | if (err) { |
3569 | IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); | |
3570 | goto out_disable_msi; | |
3571 | } | |
5b9f8cd3 | 3572 | err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group); |
316c30d9 | 3573 | if (err) { |
15b1687c | 3574 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); |
795cc0ad | 3575 | goto out_free_irq; |
316c30d9 AK |
3576 | } |
3577 | ||
4e39317d | 3578 | iwl_setup_deferred_work(priv); |
653fa4a0 | 3579 | iwl_setup_rx_handlers(priv); |
316c30d9 | 3580 | |
158bea07 JB |
3581 | /********************************************* |
3582 | * 8. Enable interrupts and read RFKILL state | |
3583 | *********************************************/ | |
6ba87956 | 3584 | |
6cd0b1cb HS |
3585 | /* enable interrupts if needed: hw bug w/a */ |
3586 | pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); | |
3587 | if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { | |
3588 | pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; | |
3589 | pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd); | |
3590 | } | |
3591 | ||
3592 | iwl_enable_interrupts(priv); | |
3593 | ||
6cd0b1cb HS |
3594 | /* If platform's RF_KILL switch is NOT set to KILL */ |
3595 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
3596 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3597 | else | |
3598 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
6ba87956 | 3599 | |
a60e77e5 JB |
3600 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
3601 | test_bit(STATUS_RF_KILL_HW, &priv->status)); | |
6cd0b1cb | 3602 | |
58d0f361 | 3603 | iwl_power_initialize(priv); |
39b73fb1 | 3604 | iwl_tt_initialize(priv); |
158bea07 | 3605 | |
b08dfd04 | 3606 | err = iwl_request_firmware(priv, true); |
158bea07 JB |
3607 | if (err) |
3608 | goto out_remove_sysfs; | |
3609 | ||
b481de9c ZY |
3610 | return 0; |
3611 | ||
316c30d9 | 3612 | out_remove_sysfs: |
c8f16138 RC |
3613 | destroy_workqueue(priv->workqueue); |
3614 | priv->workqueue = NULL; | |
5b9f8cd3 | 3615 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
795cc0ad HS |
3616 | out_free_irq: |
3617 | free_irq(priv->pci_dev->irq, priv); | |
ef850d7c | 3618 | iwl_free_isr_ict(priv); |
6cd0b1cb HS |
3619 | out_disable_msi: |
3620 | pci_disable_msi(priv->pci_dev); | |
6ba87956 | 3621 | iwl_uninit_drv(priv); |
073d3f5f TW |
3622 | out_free_eeprom: |
3623 | iwl_eeprom_free(priv); | |
b481de9c ZY |
3624 | out_iounmap: |
3625 | pci_iounmap(pdev, priv->hw_base); | |
3626 | out_pci_release_regions: | |
316c30d9 | 3627 | pci_set_drvdata(pdev, NULL); |
623d563e | 3628 | pci_release_regions(pdev); |
b481de9c ZY |
3629 | out_pci_disable_device: |
3630 | pci_disable_device(pdev); | |
b481de9c | 3631 | out_ieee80211_free_hw: |
20594eb0 | 3632 | iwl_free_traffic_mem(priv); |
d7c76f4c | 3633 | ieee80211_free_hw(priv->hw); |
b481de9c ZY |
3634 | out: |
3635 | return err; | |
3636 | } | |
3637 | ||
5b9f8cd3 | 3638 | static void __devexit iwl_pci_remove(struct pci_dev *pdev) |
b481de9c | 3639 | { |
c79dd5b5 | 3640 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
0359facc | 3641 | unsigned long flags; |
b481de9c ZY |
3642 | |
3643 | if (!priv) | |
3644 | return; | |
3645 | ||
e1623446 | 3646 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 3647 | |
67249625 | 3648 | iwl_dbgfs_unregister(priv); |
5b9f8cd3 | 3649 | sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); |
67249625 | 3650 | |
5b9f8cd3 EG |
3651 | /* ieee80211_unregister_hw call wil cause iwl_mac_stop to |
3652 | * to be called and iwl_down since we are removing the device | |
0b124c31 GG |
3653 | * we need to set STATUS_EXIT_PENDING bit. |
3654 | */ | |
3655 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
c4f55232 RR |
3656 | if (priv->mac80211_registered) { |
3657 | ieee80211_unregister_hw(priv->hw); | |
3658 | priv->mac80211_registered = 0; | |
0b124c31 | 3659 | } else { |
5b9f8cd3 | 3660 | iwl_down(priv); |
c4f55232 RR |
3661 | } |
3662 | ||
c166b25a BC |
3663 | /* |
3664 | * Make sure device is reset to low power before unloading driver. | |
3665 | * This may be redundant with iwl_down(), but there are paths to | |
3666 | * run iwl_down() without calling apm_ops.stop(), and there are | |
3667 | * paths to avoid running iwl_down() at all before leaving driver. | |
3668 | * This (inexpensive) call *makes sure* device is reset. | |
3669 | */ | |
3670 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
3671 | ||
39b73fb1 WYG |
3672 | iwl_tt_exit(priv); |
3673 | ||
0359facc MA |
3674 | /* make sure we flush any pending irq or |
3675 | * tasklet for the driver | |
3676 | */ | |
3677 | spin_lock_irqsave(&priv->lock, flags); | |
5b9f8cd3 | 3678 | iwl_disable_interrupts(priv); |
0359facc MA |
3679 | spin_unlock_irqrestore(&priv->lock, flags); |
3680 | ||
3681 | iwl_synchronize_irq(priv); | |
3682 | ||
5b9f8cd3 | 3683 | iwl_dealloc_ucode_pci(priv); |
b481de9c ZY |
3684 | |
3685 | if (priv->rxq.bd) | |
a55360e4 | 3686 | iwl_rx_queue_free(priv, &priv->rxq); |
1053d35f | 3687 | iwl_hw_txq_ctx_free(priv); |
b481de9c | 3688 | |
073d3f5f | 3689 | iwl_eeprom_free(priv); |
b481de9c | 3690 | |
b481de9c | 3691 | |
948c171c MA |
3692 | /*netif_stop_queue(dev); */ |
3693 | flush_workqueue(priv->workqueue); | |
3694 | ||
5b9f8cd3 | 3695 | /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes |
b481de9c ZY |
3696 | * priv->workqueue... so we can't take down the workqueue |
3697 | * until now... */ | |
3698 | destroy_workqueue(priv->workqueue); | |
3699 | priv->workqueue = NULL; | |
20594eb0 | 3700 | iwl_free_traffic_mem(priv); |
b481de9c | 3701 | |
6cd0b1cb HS |
3702 | free_irq(priv->pci_dev->irq, priv); |
3703 | pci_disable_msi(priv->pci_dev); | |
b481de9c ZY |
3704 | pci_iounmap(pdev, priv->hw_base); |
3705 | pci_release_regions(pdev); | |
3706 | pci_disable_device(pdev); | |
3707 | pci_set_drvdata(pdev, NULL); | |
3708 | ||
6ba87956 | 3709 | iwl_uninit_drv(priv); |
b481de9c | 3710 | |
ef850d7c MA |
3711 | iwl_free_isr_ict(priv); |
3712 | ||
b481de9c ZY |
3713 | if (priv->ibss_beacon) |
3714 | dev_kfree_skb(priv->ibss_beacon); | |
3715 | ||
3716 | ieee80211_free_hw(priv->hw); | |
3717 | } | |
3718 | ||
b481de9c ZY |
3719 | |
3720 | /***************************************************************************** | |
3721 | * | |
3722 | * driver and module entry point | |
3723 | * | |
3724 | *****************************************************************************/ | |
3725 | ||
fed9017e | 3726 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
a3aa1884 | 3727 | static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { |
4fc22b21 | 3728 | #ifdef CONFIG_IWL4965 |
fed9017e RR |
3729 | {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, |
3730 | {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, | |
4fc22b21 | 3731 | #endif /* CONFIG_IWL4965 */ |
5a6a256e | 3732 | #ifdef CONFIG_IWL5000 |
ac592574 WYG |
3733 | /* 5100 Series WiFi */ |
3734 | {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */ | |
3735 | {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */ | |
3736 | {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */ | |
3737 | {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */ | |
3738 | {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */ | |
3739 | {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */ | |
3740 | {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */ | |
3741 | {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */ | |
3742 | {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */ | |
3743 | {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */ | |
3744 | {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */ | |
3745 | {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */ | |
3746 | {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */ | |
3747 | {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */ | |
3748 | {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */ | |
3749 | {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */ | |
3750 | {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */ | |
3751 | {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */ | |
3752 | {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */ | |
3753 | {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */ | |
3754 | {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */ | |
3755 | {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */ | |
3756 | {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */ | |
3757 | {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */ | |
3758 | ||
3759 | /* 5300 Series WiFi */ | |
3760 | {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */ | |
3761 | {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */ | |
3762 | {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */ | |
3763 | {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */ | |
3764 | {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */ | |
3765 | {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */ | |
3766 | {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */ | |
3767 | {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */ | |
3768 | {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */ | |
3769 | {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */ | |
3770 | {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */ | |
3771 | {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */ | |
3772 | ||
3773 | /* 5350 Series WiFi/WiMax */ | |
3774 | {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */ | |
3775 | {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */ | |
3776 | {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */ | |
3777 | ||
3778 | /* 5150 Series Wifi/WiMax */ | |
3779 | {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */ | |
3780 | {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */ | |
3781 | {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */ | |
3782 | {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */ | |
3783 | {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */ | |
3784 | {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */ | |
3785 | ||
3786 | {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */ | |
3787 | {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */ | |
3788 | {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */ | |
3789 | {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */ | |
5953a62e WYG |
3790 | |
3791 | /* 6x00 Series */ | |
5953a62e WYG |
3792 | {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)}, |
3793 | {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)}, | |
3794 | {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)}, | |
3795 | {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)}, | |
3796 | {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)}, | |
3797 | {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)}, | |
3798 | {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)}, | |
3799 | {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)}, | |
3800 | {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)}, | |
3801 | {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)}, | |
3802 | ||
3803 | /* 6x50 WiFi/WiMax Series */ | |
5953a62e WYG |
3804 | {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)}, |
3805 | {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)}, | |
3806 | {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)}, | |
3807 | {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)}, | |
5953a62e WYG |
3808 | {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)}, |
3809 | {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)}, | |
3810 | ||
77dcb6a9 | 3811 | /* 1000 Series WiFi */ |
4bd0914f WYG |
3812 | {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)}, |
3813 | {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)}, | |
3814 | {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)}, | |
3815 | {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)}, | |
3816 | {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)}, | |
3817 | {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)}, | |
3818 | {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)}, | |
3819 | {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)}, | |
3820 | {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)}, | |
3821 | {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)}, | |
3822 | {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)}, | |
3823 | {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)}, | |
5a6a256e | 3824 | #endif /* CONFIG_IWL5000 */ |
7100e924 | 3825 | |
fed9017e RR |
3826 | {0} |
3827 | }; | |
3828 | MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); | |
3829 | ||
3830 | static struct pci_driver iwl_driver = { | |
b481de9c | 3831 | .name = DRV_NAME, |
fed9017e | 3832 | .id_table = iwl_hw_card_ids, |
5b9f8cd3 EG |
3833 | .probe = iwl_pci_probe, |
3834 | .remove = __devexit_p(iwl_pci_remove), | |
b481de9c | 3835 | #ifdef CONFIG_PM |
5b9f8cd3 EG |
3836 | .suspend = iwl_pci_suspend, |
3837 | .resume = iwl_pci_resume, | |
b481de9c ZY |
3838 | #endif |
3839 | }; | |
3840 | ||
5b9f8cd3 | 3841 | static int __init iwl_init(void) |
b481de9c ZY |
3842 | { |
3843 | ||
3844 | int ret; | |
3845 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
3846 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 | 3847 | |
e227ceac | 3848 | ret = iwlagn_rate_control_register(); |
897e1cf2 | 3849 | if (ret) { |
a3139c59 SO |
3850 | printk(KERN_ERR DRV_NAME |
3851 | "Unable to register rate control algorithm: %d\n", ret); | |
897e1cf2 RC |
3852 | return ret; |
3853 | } | |
3854 | ||
fed9017e | 3855 | ret = pci_register_driver(&iwl_driver); |
b481de9c | 3856 | if (ret) { |
a3139c59 | 3857 | printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n"); |
897e1cf2 | 3858 | goto error_register; |
b481de9c | 3859 | } |
b481de9c ZY |
3860 | |
3861 | return ret; | |
897e1cf2 | 3862 | |
897e1cf2 | 3863 | error_register: |
e227ceac | 3864 | iwlagn_rate_control_unregister(); |
897e1cf2 | 3865 | return ret; |
b481de9c ZY |
3866 | } |
3867 | ||
5b9f8cd3 | 3868 | static void __exit iwl_exit(void) |
b481de9c | 3869 | { |
fed9017e | 3870 | pci_unregister_driver(&iwl_driver); |
e227ceac | 3871 | iwlagn_rate_control_unregister(); |
b481de9c ZY |
3872 | } |
3873 | ||
5b9f8cd3 EG |
3874 | module_exit(iwl_exit); |
3875 | module_init(iwl_init); | |
a562a9dd RC |
3876 | |
3877 | #ifdef CONFIG_IWLWIFI_DEBUG | |
4e30cb69 | 3878 | module_param_named(debug50, iwl_debug_level, uint, S_IRUGO); |
a562a9dd | 3879 | MODULE_PARM_DESC(debug50, "50XX debug output mask (deprecated)"); |
4e30cb69 | 3880 | module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); |
a562a9dd RC |
3881 | MODULE_PARM_DESC(debug, "debug output mask"); |
3882 | #endif | |
3883 |