blob: c3b594647def82ef25b68f22f872f0ad82bd6955 [file] [log] [blame]
Zhu Yib481de92007-09-25 17:54:57 -07001/******************************************************************************
2 *
Wey-Yi Guy4e318262011-12-27 11:21:32 -08003 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
Zhu Yib481de92007-09-25 17:54:57 -07004 *
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:
Winkler, Tomas759ef892008-12-09 11:28:58 -080025 * Intel Linux Wireless <ilw@linux.intel.com>
Zhu Yib481de92007-09-25 17:54:57 -070026 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
Zhu Yib481de92007-09-25 17:54:57 -070029#include <linux/kernel.h>
30#include <linux/module.h>
Zhu Yib481de92007-09-25 17:54:57 -070031#include <linux/init.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090032#include <linux/slab.h>
Zhu Yib481de92007-09-25 17:54:57 -070033#include <linux/delay.h>
Alexey Dobriyand43c36d2009-10-07 17:09:06 +040034#include <linux/sched.h>
Zhu Yib481de92007-09-25 17:54:57 -070035#include <linux/skbuff.h>
36#include <linux/netdevice.h>
Zhu Yib481de92007-09-25 17:54:57 -070037#include <linux/etherdevice.h>
38#include <linux/if_arp.h>
39
Zhu Yib481de92007-09-25 17:54:57 -070040#include <net/mac80211.h>
41
42#include <asm/div64.h>
43
Don Fryedf38332012-01-25 16:18:52 -080044#include "iwl-ucode.h"
Assaf Krauss6bc913b2008-03-11 16:17:18 -070045#include "iwl-eeprom.h"
Don Fry69a679b2011-12-07 08:50:46 -080046#include "iwl-wifi.h"
Tomas Winkler3e0d4cb2008-04-24 11:55:38 -070047#include "iwl-dev.h"
Tomas Winklerfee12472008-04-03 16:05:21 -070048#include "iwl-core.h"
Tomas Winkler3395f6e2008-03-25 16:33:37 -070049#include "iwl-io.h"
Johannes Berg0de76732010-09-22 18:02:11 +020050#include "iwl-agn-calib.h"
Johannes Berga1175122010-01-21 06:21:10 -080051#include "iwl-agn.h"
Emmanuel Grumbach48f20d32011-08-25 23:10:36 -070052#include "iwl-shared.h"
Emmanuel Grumbachc85eb612011-06-14 10:13:24 +030053#include "iwl-trans.h"
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +020054#include "iwl-op-mode.h"
Christoph Hellwig416e1432007-10-25 17:15:49 +080055
Zhu Yib481de92007-09-25 17:54:57 -070056/******************************************************************************
57 *
58 * module boiler plate
59 *
60 ******************************************************************************/
61
Zhu Yib481de92007-09-25 17:54:57 -070062/*
63 * module name, copyright, version, etc.
Zhu Yib481de92007-09-25 17:54:57 -070064 */
Tomas Winklerd783b062008-07-18 13:53:02 +080065#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
Zhu Yib481de92007-09-25 17:54:57 -070066
Tomas Winkler0a6857e2008-03-12 16:58:49 -070067#ifdef CONFIG_IWLWIFI_DEBUG
Zhu Yib481de92007-09-25 17:54:57 -070068#define VD "d"
69#else
70#define VD
71#endif
72
Reinette Chatre81963d62010-01-22 14:22:57 -080073#define DRV_VERSION IWLWIFI_VERSION VD
Zhu Yib481de92007-09-25 17:54:57 -070074
Zhu Yib481de92007-09-25 17:54:57 -070075
76MODULE_DESCRIPTION(DRV_DESCRIPTION);
77MODULE_VERSION(DRV_VERSION);
Tomas Winklera7b75202008-12-11 10:33:41 -080078MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
Zhu Yib481de92007-09-25 17:54:57 -070079MODULE_LICENSE("GPL");
Don Fry3c607d22011-09-30 11:40:20 -070080MODULE_ALIAS("iwlagn");
Zhu Yib481de92007-09-25 17:54:57 -070081
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -070082void iwl_update_chain_flags(struct iwl_priv *priv)
Mohamed Abbas5da4b55f2008-04-21 15:41:51 -070083{
Johannes Berg246ed352010-08-23 10:46:32 +020084 struct iwl_rxon_context *ctx;
Mohamed Abbas5da4b55f2008-04-21 15:41:51 -070085
Wey-Yi Guye3f10ce2011-07-01 07:59:26 -070086 for_each_context(priv, ctx) {
87 iwlagn_set_rxon_chain(priv, ctx);
88 if (ctx->active.rx_chain != ctx->staging.rx_chain)
89 iwlagn_commit_rxon(priv, ctx);
Johannes Berg246ed352010-08-23 10:46:32 +020090 }
Mohamed Abbas5da4b55f2008-04-21 15:41:51 -070091}
92
Daniel C Halperin47ff65c2009-11-13 11:56:33 -080093/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
94static void iwl_set_beacon_tim(struct iwl_priv *priv,
Johannes Berg77834542010-10-04 05:50:36 -070095 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
96 u8 *beacon, u32 frame_size)
Daniel C Halperin47ff65c2009-11-13 11:56:33 -080097{
98 u16 tim_idx;
99 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
100
101 /*
102 * The index is relative to frame start but we start looking at the
103 * variable-length part of the beacon.
104 */
105 tim_idx = mgmt->u.beacon.variable - beacon;
106
107 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
108 while ((tim_idx < (frame_size - 2)) &&
109 (beacon[tim_idx] != WLAN_EID_TIM))
110 tim_idx += beacon[tim_idx+1] + 2;
111
112 /* If TIM field was found, set variables */
113 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
114 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
115 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
116 } else
117 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
118}
119
Johannes Berg8a98d492011-04-29 09:48:14 -0700120int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800121{
122 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
Johannes Berg8a98d492011-04-29 09:48:14 -0700123 struct iwl_host_cmd cmd = {
124 .id = REPLY_TX_BEACON,
Emmanuel Grumbache419d622011-07-08 08:46:14 -0700125 .flags = CMD_SYNC,
Johannes Berg8a98d492011-04-29 09:48:14 -0700126 };
Johannes Berg0b5b3ff2011-06-22 06:33:43 -0700127 struct ieee80211_tx_info *info;
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800128 u32 frame_size;
129 u32 rate_flags;
130 u32 rate;
Johannes Berg8a98d492011-04-29 09:48:14 -0700131
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800132 /*
133 * We have to set up the TX command, the TX Beacon command, and the
134 * beacon contents.
135 */
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800136
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700137 lockdep_assert_held(&priv->shrd->mutex);
Johannes Berg76d04812010-08-23 10:46:47 +0200138
139 if (!priv->beacon_ctx) {
140 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
Julia Lawall950094c2010-09-05 21:00:26 +0200141 return 0;
Johannes Berg76d04812010-08-23 10:46:47 +0200142 }
143
Johannes Berg8a98d492011-04-29 09:48:14 -0700144 if (WARN_ON(!priv->beacon_skb))
145 return -EINVAL;
146
Johannes Berg4ce7cc22011-05-13 11:57:40 -0700147 /* Allocate beacon command */
148 if (!priv->beacon_cmd)
149 priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
150 tx_beacon_cmd = priv->beacon_cmd;
Johannes Berg8a98d492011-04-29 09:48:14 -0700151 if (!tx_beacon_cmd)
152 return -ENOMEM;
153
154 frame_size = priv->beacon_skb->len;
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800155
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800156 /* Set up TX command fields */
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800157 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
Johannes Berg76d04812010-08-23 10:46:47 +0200158 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800159 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800160 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800161 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
162
163 /* Set up TX beacon command fields */
Johannes Berg4ce7cc22011-05-13 11:57:40 -0700164 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
Johannes Berg77834542010-10-04 05:50:36 -0700165 frame_size);
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800166
167 /* Set up packet rate and flags */
Johannes Berg0b5b3ff2011-06-22 06:33:43 -0700168 info = IEEE80211_SKB_CB(priv->beacon_skb);
169
170 /*
171 * Let's set up the rate at least somewhat correctly;
172 * it will currently not actually be used by the uCode,
173 * it uses the broadcast station's rate instead.
174 */
175 if (info->control.rates[0].idx < 0 ||
176 info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
177 rate = 0;
178 else
179 rate = info->control.rates[0].idx;
180
Johannes Berg0e1654f2010-05-18 02:48:36 -0700181 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
Emmanuel Grumbachd6189122011-08-25 23:10:39 -0700182 hw_params(priv).valid_tx_ant);
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800183 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
Johannes Berg0b5b3ff2011-06-22 06:33:43 -0700184
185 /* In mac80211, rates for 5 GHz start at 0 */
186 if (info->band == IEEE80211_BAND_5GHZ)
187 rate += IWL_FIRST_OFDM_RATE;
188 else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE)
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800189 rate_flags |= RATE_MCS_CCK_MSK;
Johannes Berg0b5b3ff2011-06-22 06:33:43 -0700190
191 tx_beacon_cmd->tx.rate_n_flags =
192 iwl_hw_set_rate_n_flags(rate, rate_flags);
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800193
Johannes Berg8a98d492011-04-29 09:48:14 -0700194 /* Submit command */
Johannes Berg4ce7cc22011-05-13 11:57:40 -0700195 cmd.len[0] = sizeof(*tx_beacon_cmd);
Johannes Berg3fa50732011-05-04 07:50:38 -0700196 cmd.data[0] = tx_beacon_cmd;
Johannes Berg4ce7cc22011-05-13 11:57:40 -0700197 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
198 cmd.len[1] = frame_size;
199 cmd.data[1] = priv->beacon_skb->data;
200 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
Johannes Berg2295c662010-10-23 09:15:41 -0700201
Emmanuel Grumbache6bb4c92011-08-25 23:10:48 -0700202 return iwl_trans_send_cmd(trans(priv), &cmd);
Samuel Ortiza8e74e22009-01-23 13:45:14 -0800203}
204
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700205static void iwl_bg_beacon_update(struct work_struct *work)
Zhu Yib481de92007-09-25 17:54:57 -0700206{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700207 struct iwl_priv *priv =
208 container_of(work, struct iwl_priv, beacon_update);
Zhu Yib481de92007-09-25 17:54:57 -0700209 struct sk_buff *beacon;
210
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700211 mutex_lock(&priv->shrd->mutex);
Johannes Berg76d04812010-08-23 10:46:47 +0200212 if (!priv->beacon_ctx) {
213 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
214 goto out;
Zhu Yib481de92007-09-25 17:54:57 -0700215 }
216
Johannes Berg60744f62010-08-23 10:46:50 +0200217 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
218 /*
219 * The ucode will send beacon notifications even in
220 * IBSS mode, but we don't want to process them. But
221 * we need to defer the type check to here due to
222 * requiring locking around the beacon_ctx access.
223 */
224 goto out;
225 }
226
Johannes Berg76d04812010-08-23 10:46:47 +0200227 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
228 beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
229 if (!beacon) {
Johannes Berg77834542010-10-04 05:50:36 -0700230 IWL_ERR(priv, "update beacon failed -- keeping old\n");
Johannes Berg76d04812010-08-23 10:46:47 +0200231 goto out;
232 }
233
Zhu Yib481de92007-09-25 17:54:57 -0700234 /* new beacon skb is allocated every time; dispose previous.*/
Johannes Berg77834542010-10-04 05:50:36 -0700235 dev_kfree_skb(priv->beacon_skb);
Zhu Yib481de92007-09-25 17:54:57 -0700236
Johannes Berg12e934d2010-10-04 05:50:06 -0700237 priv->beacon_skb = beacon;
Zhu Yib481de92007-09-25 17:54:57 -0700238
Johannes Berg2295c662010-10-23 09:15:41 -0700239 iwlagn_send_beacon_cmd(priv);
Johannes Berg76d04812010-08-23 10:46:47 +0200240 out:
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700241 mutex_unlock(&priv->shrd->mutex);
Zhu Yib481de92007-09-25 17:54:57 -0700242}
243
Wey-Yi Guyfbba9412010-08-23 07:57:10 -0700244static void iwl_bg_bt_runtime_config(struct work_struct *work)
245{
246 struct iwl_priv *priv =
247 container_of(work, struct iwl_priv, bt_runtime_config);
248
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700249 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
Wey-Yi Guyfbba9412010-08-23 07:57:10 -0700250 return;
251
252 /* dont send host command if rf-kill is on */
Emmanuel Grumbach845a9c02011-08-25 23:11:04 -0700253 if (!iwl_is_ready_rf(priv->shrd))
Wey-Yi Guyfbba9412010-08-23 07:57:10 -0700254 return;
Wey-Yi Guye55b5172011-06-28 11:46:28 -0700255 iwlagn_send_advance_bt_config(priv);
Wey-Yi Guyfbba9412010-08-23 07:57:10 -0700256}
257
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700258static void iwl_bg_bt_full_concurrency(struct work_struct *work)
259{
260 struct iwl_priv *priv =
261 container_of(work, struct iwl_priv, bt_full_concurrency);
Johannes Berg246ed352010-08-23 10:46:32 +0200262 struct iwl_rxon_context *ctx;
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700263
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700264 mutex_lock(&priv->shrd->mutex);
Stanislaw Gruszkadc1a4062011-03-31 17:36:27 +0200265
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700266 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
Stanislaw Gruszkadc1a4062011-03-31 17:36:27 +0200267 goto out;
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700268
269 /* dont send host command if rf-kill is on */
Emmanuel Grumbach845a9c02011-08-25 23:11:04 -0700270 if (!iwl_is_ready_rf(priv->shrd))
Stanislaw Gruszkadc1a4062011-03-31 17:36:27 +0200271 goto out;
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700272
273 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
274 priv->bt_full_concurrent ?
275 "full concurrency" : "3-wire");
276
277 /*
278 * LQ & RXON updated cmds must be sent before BT Config cmd
279 * to avoid 3-wire collisions
280 */
Johannes Berg246ed352010-08-23 10:46:32 +0200281 for_each_context(priv, ctx) {
Wey-Yi Guye3f10ce2011-07-01 07:59:26 -0700282 iwlagn_set_rxon_chain(priv, ctx);
Wey-Yi Guy805a3b82011-06-03 07:54:16 -0700283 iwlagn_commit_rxon(priv, ctx);
Johannes Berg246ed352010-08-23 10:46:32 +0200284 }
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700285
Wey-Yi Guye55b5172011-06-28 11:46:28 -0700286 iwlagn_send_advance_bt_config(priv);
Stanislaw Gruszkadc1a4062011-03-31 17:36:27 +0200287out:
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700288 mutex_unlock(&priv->shrd->mutex);
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700289}
290
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800291/**
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700292 * iwl_bg_statistics_periodic - Timer callback to queue statistics
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800293 *
294 * This callback is provided in order to send a statistics request.
295 *
296 * This timer function is continually reset to execute within
297 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
298 * was received. We need to ensure we receive the statistics in order
299 * to update the temperature used for calibrating the TXPOWER.
300 */
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700301static void iwl_bg_statistics_periodic(unsigned long data)
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800302{
303 struct iwl_priv *priv = (struct iwl_priv *)data;
304
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700305 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800306 return;
307
Mohamed Abbas61780ee2008-10-29 14:05:49 -0700308 /* dont send host command if rf-kill is on */
Emmanuel Grumbach845a9c02011-08-25 23:11:04 -0700309 if (!iwl_is_ready_rf(priv->shrd))
Mohamed Abbas61780ee2008-10-29 14:05:49 -0700310 return;
311
Wey-Yi Guyef8d5522009-11-13 11:56:28 -0800312 iwl_send_statistics_request(priv, CMD_ASYNC, false);
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800313}
314
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800315
316static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
317 u32 start_idx, u32 num_events,
Johannes Berg98d4bf02012-01-13 11:56:11 +0100318 u32 capacity, u32 mode)
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800319{
320 u32 i;
321 u32 ptr; /* SRAM byte address of log data */
322 u32 ev, time, data; /* event log data */
323 unsigned long reg_flags;
324
325 if (mode == 0)
326 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
327 else
328 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
329
330 /* Make sure device is powered up for SRAM reads */
Emmanuel Grumbach1042db22012-01-03 16:56:15 +0200331 spin_lock_irqsave(&trans(priv)->reg_lock, reg_flags);
332 if (iwl_grab_nic_access(trans(priv))) {
333 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800334 return;
335 }
336
337 /* Set starting address; reads will auto-increment */
Emmanuel Grumbach1042db22012-01-03 16:56:15 +0200338 iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800339 rmb();
340
341 /*
Johannes Berg98d4bf02012-01-13 11:56:11 +0100342 * Refuse to read more than would have fit into the log from
343 * the current start_idx. This used to happen due to the race
344 * described below, but now WARN because the code below should
345 * prevent it from happening here.
346 */
347 if (WARN_ON(num_events > capacity - start_idx))
348 num_events = capacity - start_idx;
349
350 /*
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800351 * "time" is actually "data" for mode 0 (no timestamp).
352 * place event id # at far right for easier visual parsing.
353 */
354 for (i = 0; i < num_events; i++) {
Emmanuel Grumbach1042db22012-01-03 16:56:15 +0200355 ev = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
356 time = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800357 if (mode == 0) {
Johannes Berg98d4bf02012-01-13 11:56:11 +0100358 trace_iwlwifi_dev_ucode_cont_event(priv, 0, time, ev);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800359 } else {
Emmanuel Grumbach1042db22012-01-03 16:56:15 +0200360 data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
Johannes Berg98d4bf02012-01-13 11:56:11 +0100361 trace_iwlwifi_dev_ucode_cont_event(priv, time,
362 data, ev);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800363 }
364 }
365 /* Allow device to power down */
Emmanuel Grumbach1042db22012-01-03 16:56:15 +0200366 iwl_release_nic_access(trans(priv));
367 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800368}
369
Johannes Berg875295f2010-01-22 14:22:55 -0800370static void iwl_continuous_event_trace(struct iwl_priv *priv)
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800371{
372 u32 capacity; /* event log capacity in # entries */
Johannes Berg98d4bf02012-01-13 11:56:11 +0100373 struct {
374 u32 capacity;
375 u32 mode;
376 u32 wrap_counter;
377 u32 write_counter;
378 } __packed read;
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800379 u32 base; /* SRAM byte address of event log header */
380 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
381 u32 num_wraps; /* # times uCode wrapped to top of log */
382 u32 next_entry; /* index of next entry to be written by uCode */
383
Johannes Berg98d4bf02012-01-13 11:56:11 +0100384 base = priv->shrd->device_pointers.log_event_table;
Fry, Donald H4caab322011-07-07 15:24:07 -0700385 if (iwlagn_hw_valid_rtc_data_addr(base)) {
Emmanuel Grumbach1042db22012-01-03 16:56:15 +0200386 iwl_read_targ_mem_words(trans(priv), base, &read, sizeof(read));
Johannes Berg98d4bf02012-01-13 11:56:11 +0100387
388 capacity = read.capacity;
389 mode = read.mode;
390 num_wraps = read.wrap_counter;
391 next_entry = read.write_counter;
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800392 } else
393 return;
394
Johannes Berg98d4bf02012-01-13 11:56:11 +0100395 /*
396 * Unfortunately, the uCode doesn't use temporary variables.
397 * Therefore, it can happen that we read next_entry == capacity,
398 * which really means next_entry == 0.
399 */
400 if (unlikely(next_entry == capacity))
401 next_entry = 0;
402 /*
403 * Additionally, the uCode increases the write pointer before
404 * the wraps counter, so if the write pointer is smaller than
405 * the old write pointer (wrap occurred) but we read that no
406 * wrap occurred, we actually read between the next_entry and
407 * num_wraps update (this does happen in practice!!) -- take
408 * that into account by increasing num_wraps.
409 */
410 if (unlikely(next_entry < priv->event_log.next_entry &&
411 num_wraps == priv->event_log.num_wraps))
412 num_wraps++;
413
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800414 if (num_wraps == priv->event_log.num_wraps) {
Johannes Berg98d4bf02012-01-13 11:56:11 +0100415 iwl_print_cont_event_trace(
416 priv, base, priv->event_log.next_entry,
417 next_entry - priv->event_log.next_entry,
418 capacity, mode);
419
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800420 priv->event_log.non_wraps_count++;
421 } else {
Johannes Berg98d4bf02012-01-13 11:56:11 +0100422 if (num_wraps - priv->event_log.num_wraps > 1)
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800423 priv->event_log.wraps_more_count++;
424 else
425 priv->event_log.wraps_once_count++;
Johannes Berg98d4bf02012-01-13 11:56:11 +0100426
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800427 trace_iwlwifi_dev_ucode_wrap_event(priv,
428 num_wraps - priv->event_log.num_wraps,
429 next_entry, priv->event_log.next_entry);
Johannes Berg98d4bf02012-01-13 11:56:11 +0100430
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800431 if (next_entry < priv->event_log.next_entry) {
Johannes Berg98d4bf02012-01-13 11:56:11 +0100432 iwl_print_cont_event_trace(
433 priv, base, priv->event_log.next_entry,
434 capacity - priv->event_log.next_entry,
435 capacity, mode);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800436
Johannes Berg98d4bf02012-01-13 11:56:11 +0100437 iwl_print_cont_event_trace(
438 priv, base, 0, next_entry, capacity, mode);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800439 } else {
Johannes Berg98d4bf02012-01-13 11:56:11 +0100440 iwl_print_cont_event_trace(
441 priv, base, next_entry,
442 capacity - next_entry,
443 capacity, mode);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800444
Johannes Berg98d4bf02012-01-13 11:56:11 +0100445 iwl_print_cont_event_trace(
446 priv, base, 0, next_entry, capacity, mode);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800447 }
448 }
Johannes Berg98d4bf02012-01-13 11:56:11 +0100449
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800450 priv->event_log.num_wraps = num_wraps;
451 priv->event_log.next_entry = next_entry;
452}
453
454/**
455 * iwl_bg_ucode_trace - Timer callback to log ucode event
456 *
457 * The timer is continually set to execute every
458 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
459 * this function is to perform continuous uCode event logging operation
460 * if enabled
461 */
462static void iwl_bg_ucode_trace(unsigned long data)
463{
464 struct iwl_priv *priv = (struct iwl_priv *)data;
465
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700466 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800467 return;
468
469 if (priv->event_log.ucode_trace) {
470 iwl_continuous_event_trace(priv);
471 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
472 mod_timer(&priv->ucode_trace,
473 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
474 }
475}
476
Wey-Yi Guy65550632010-06-24 13:18:35 -0700477static void iwl_bg_tx_flush(struct work_struct *work)
478{
479 struct iwl_priv *priv =
480 container_of(work, struct iwl_priv, tx_flush);
481
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700482 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
Wey-Yi Guy65550632010-06-24 13:18:35 -0700483 return;
484
485 /* do nothing if rf-kill is on */
Emmanuel Grumbach845a9c02011-08-25 23:11:04 -0700486 if (!iwl_is_ready_rf(priv->shrd))
Wey-Yi Guy65550632010-06-24 13:18:35 -0700487 return;
488
Wey-Yi Guyc68744f2011-06-18 08:03:18 -0700489 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
490 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
Wey-Yi Guy65550632010-06-24 13:18:35 -0700491}
492
Don Fryedf38332012-01-25 16:18:52 -0800493void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
Johannes Berg4d2a5d02011-07-23 10:24:46 -0700494{
Johannes Berg4d2a5d02011-07-23 10:24:46 -0700495 int i;
496
497 /*
498 * The default context is always valid,
499 * the PAN context depends on uCode.
500 */
Emmanuel Grumbach7a10e3e2011-09-06 09:31:21 -0700501 priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS);
Johannes Berg4d2a5d02011-07-23 10:24:46 -0700502 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
Emmanuel Grumbach7a10e3e2011-09-06 09:31:21 -0700503 priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
Johannes Berg4d2a5d02011-07-23 10:24:46 -0700504
505 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
506 priv->contexts[i].ctxid = i;
507
508 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
509 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
510 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
511 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
512 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
513 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
514 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
515 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
Don Fry87272af2012-01-25 15:26:34 -0800516 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
Johannes Berg4d2a5d02011-07-23 10:24:46 -0700517 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
518 BIT(NL80211_IFTYPE_ADHOC);
519 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
520 BIT(NL80211_IFTYPE_STATION);
521 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
522 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
523 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
524 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
525
526 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
527 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
528 REPLY_WIPAN_RXON_TIMING;
529 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
530 REPLY_WIPAN_RXON_ASSOC;
531 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
532 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
533 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
534 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
535 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
Johannes Berg4d2a5d02011-07-23 10:24:46 -0700536 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
537 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700538
539 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
540 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
541 BIT(NL80211_IFTYPE_P2P_CLIENT) |
542 BIT(NL80211_IFTYPE_P2P_GO);
543
Johannes Berg4d2a5d02011-07-23 10:24:46 -0700544 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
545 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
546 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
547
548 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
549}
550
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700551static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
552{
553 struct iwl_ct_kill_config cmd;
554 struct iwl_ct_kill_throttling_config adv_cmd;
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700555 int ret = 0;
556
Emmanuel Grumbach1042db22012-01-03 16:56:15 +0200557 iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR,
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700558 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
Johannes Berg08ae86a2012-03-05 11:24:27 -0800559
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700560 priv->thermal_throttle.ct_kill_toggle = false;
561
Don Fry38622412011-12-16 07:07:36 -0800562 if (cfg(priv)->base_params->support_ct_kill_exit) {
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700563 adv_cmd.critical_temperature_enter =
Emmanuel Grumbachd6189122011-08-25 23:10:39 -0700564 cpu_to_le32(hw_params(priv).ct_kill_threshold);
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700565 adv_cmd.critical_temperature_exit =
Emmanuel Grumbachd6189122011-08-25 23:10:39 -0700566 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700567
Emmanuel Grumbache6bb4c92011-08-25 23:10:48 -0700568 ret = iwl_trans_send_cmd_pdu(trans(priv),
Emmanuel Grumbache419d622011-07-08 08:46:14 -0700569 REPLY_CT_KILL_CONFIG_CMD,
570 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700571 if (ret)
572 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
573 else
574 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
Emmanuel Grumbachd6189122011-08-25 23:10:39 -0700575 "succeeded, critical temperature enter is %d,"
576 "exit is %d\n",
577 hw_params(priv).ct_kill_threshold,
578 hw_params(priv).ct_kill_exit_threshold);
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700579 } else {
580 cmd.critical_temperature_R =
Emmanuel Grumbachd6189122011-08-25 23:10:39 -0700581 cpu_to_le32(hw_params(priv).ct_kill_threshold);
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700582
Emmanuel Grumbache6bb4c92011-08-25 23:10:48 -0700583 ret = iwl_trans_send_cmd_pdu(trans(priv),
Emmanuel Grumbache419d622011-07-08 08:46:14 -0700584 REPLY_CT_KILL_CONFIG_CMD,
585 CMD_SYNC, sizeof(cmd), &cmd);
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700586 if (ret)
587 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
588 else
589 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
Emmanuel Grumbachd6189122011-08-25 23:10:39 -0700590 "succeeded, "
591 "critical temperature is %d\n",
592 hw_params(priv).ct_kill_threshold);
Wey-Yi Guy0975cc82010-07-31 08:34:07 -0700593 }
594}
595
Shanyu Zhao6d6a1af2010-09-14 18:13:31 -0700596static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
597{
598 struct iwl_calib_cfg_cmd calib_cfg_cmd;
599 struct iwl_host_cmd cmd = {
600 .id = CALIBRATION_CFG_CMD,
Johannes Berg3fa50732011-05-04 07:50:38 -0700601 .len = { sizeof(struct iwl_calib_cfg_cmd), },
602 .data = { &calib_cfg_cmd, },
Shanyu Zhao6d6a1af2010-09-14 18:13:31 -0700603 };
604
605 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
Wey-Yi Guyaf4dc882011-10-04 07:10:19 -0700606 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -0700607 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
Shanyu Zhao6d6a1af2010-09-14 18:13:31 -0700608
Emmanuel Grumbache6bb4c92011-08-25 23:10:48 -0700609 return iwl_trans_send_cmd(trans(priv), &cmd);
Shanyu Zhao6d6a1af2010-09-14 18:13:31 -0700610}
611
612
Wey-Yi Guye505c432011-07-07 08:27:41 -0700613static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
614{
615 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
616 .valid = cpu_to_le32(valid_tx_ant),
617 };
618
Don Fryd3596672012-02-06 15:51:15 -0800619 if (IWL_UCODE_API(nic(priv)->fw.ucode_ver) > 1) {
Wey-Yi Guye505c432011-07-07 08:27:41 -0700620 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
Emmanuel Grumbache6bb4c92011-08-25 23:10:48 -0700621 return iwl_trans_send_cmd_pdu(trans(priv),
Wey-Yi Guye505c432011-07-07 08:27:41 -0700622 TX_ANT_CONFIGURATION_CMD,
623 CMD_SYNC,
624 sizeof(struct iwl_tx_ant_config_cmd),
625 &tx_ant_cmd);
626 } else {
627 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
628 return -EOPNOTSUPP;
629 }
630}
631
Zhu Yib481de92007-09-25 17:54:57 -0700632/**
Tomas Winkler4a4a9e82008-05-29 16:34:54 +0800633 * iwl_alive_start - called after REPLY_ALIVE notification received
Zhu Yib481de92007-09-25 17:54:57 -0700634 * from protocol/runtime uCode (initialization uCode's
Tomas Winkler4a4a9e82008-05-29 16:34:54 +0800635 * Alive gets handled by iwl_init_alive_start()).
Zhu Yib481de92007-09-25 17:54:57 -0700636 */
Cindy H. Kao4613e722011-05-06 10:40:15 -0700637int iwl_alive_start(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700638{
Tomas Winkler57aab752008-04-14 21:16:03 -0700639 int ret = 0;
Johannes Berg246ed352010-08-23 10:46:32 +0200640 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
Zhu Yib481de92007-09-25 17:54:57 -0700641
Tomas Winklere1623442009-01-27 14:27:56 -0800642 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
Zhu Yib481de92007-09-25 17:54:57 -0700643
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700644 /* After the ALIVE response, we can send host commands to the uCode */
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700645 set_bit(STATUS_ALIVE, &priv->shrd->status);
Zhu Yib481de92007-09-25 17:54:57 -0700646
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +0100647 /* Enable watchdog to monitor the driver tx queues */
648 iwl_setup_watchdog(priv);
Wey-Yi Guyb74e31a2010-03-01 17:23:50 -0800649
Emmanuel Grumbach845a9c02011-08-25 23:11:04 -0700650 if (iwl_is_rfkill(priv->shrd))
Johannes Bergca7966c2011-04-22 10:15:23 -0700651 return -ERFKILL;
Zhu Yib481de92007-09-25 17:54:57 -0700652
Johannes Berg98d4bf02012-01-13 11:56:11 +0100653 if (priv->event_log.ucode_trace) {
654 /* start collecting data now */
655 mod_timer(&priv->ucode_trace, jiffies);
656 }
657
Wey-Yi Guybc795df2010-10-11 14:24:05 -0700658 /* download priority table before any calibration request */
Don Fry38622412011-12-16 07:07:36 -0800659 if (cfg(priv)->bt_params &&
660 cfg(priv)->bt_params->advanced_bt_coexist) {
Wey-Yi Guyf7322f82010-08-23 15:24:49 -0700661 /* Configure Bluetooth device coexistence support */
Don Fry38622412011-12-16 07:07:36 -0800662 if (cfg(priv)->bt_params->bt_sco_disable)
Meenakshi Venkataraman207ecc52011-07-08 08:46:23 -0700663 priv->bt_enable_pspoll = false;
664 else
665 priv->bt_enable_pspoll = true;
666
Wey-Yi Guyf7322f82010-08-23 15:24:49 -0700667 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
668 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
669 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
Wey-Yi Guye55b5172011-06-28 11:46:28 -0700670 iwlagn_send_advance_bt_config(priv);
Wey-Yi Guyf7322f82010-08-23 15:24:49 -0700671 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
Meenakshi Venkataraman207ecc52011-07-08 08:46:23 -0700672 priv->cur_rssi_ctx = NULL;
673
Don Fryb96b09d2011-12-02 08:48:38 -0800674 iwl_send_prio_tbl(trans(priv));
Wey-Yi Guyf7322f82010-08-23 15:24:49 -0700675
676 /* FIXME: w/a to force change uCode BT state machine */
Don Fryb96b09d2011-12-02 08:48:38 -0800677 ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_OPEN,
Johannes Bergca7966c2011-04-22 10:15:23 -0700678 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
679 if (ret)
680 return ret;
Don Fryb96b09d2011-12-02 08:48:38 -0800681 ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_CLOSE,
Johannes Bergca7966c2011-04-22 10:15:23 -0700682 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
683 if (ret)
684 return ret;
Wey-Yi Guye55b5172011-06-28 11:46:28 -0700685 } else {
686 /*
687 * default is 2-wire BT coexexistence support
688 */
689 iwl_send_bt_config(priv);
Wey-Yi Guyf7322f82010-08-23 15:24:49 -0700690 }
Wey-Yi Guye55b5172011-06-28 11:46:28 -0700691
Venkataraman, Meenakshi885765f2011-12-14 16:54:21 -0800692 /*
693 * Perform runtime calibrations, including DC calibration.
694 */
695 iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
Wey-Yi Guybc795df2010-10-11 14:24:05 -0700696
Johannes Berg36d68252008-05-15 12:55:26 +0200697 ieee80211_wake_queues(priv->hw);
Zhu Yib481de92007-09-25 17:54:57 -0700698
Johannes Berg470ab2d2010-01-21 11:23:30 -0800699 priv->active_rate = IWL_RATES_MASK;
Zhu Yib481de92007-09-25 17:54:57 -0700700
Wey-Yi Guy2f748de2009-09-17 10:43:51 -0700701 /* Configure Tx antenna selection based on H/W config */
Johannes Berg7e79a392012-03-05 11:24:32 -0800702 iwlagn_send_tx_ant_config(priv, hw_params(priv).valid_tx_ant);
Wey-Yi Guy2f748de2009-09-17 10:43:51 -0700703
Johannes Berg15b86bf2012-03-05 11:24:36 -0800704 if (iwl_is_associated_ctx(ctx) && !priv->wowlan) {
Gregory Greenmanc1adf9f2008-05-15 13:53:59 +0800705 struct iwl_rxon_cmd *active_rxon =
Johannes Berg246ed352010-08-23 10:46:32 +0200706 (struct iwl_rxon_cmd *)&ctx->active;
Mohamed Abbas019fb972009-03-17 21:59:18 -0700707 /* apply any changes in staging */
Johannes Berg246ed352010-08-23 10:46:32 +0200708 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
Zhu Yib481de92007-09-25 17:54:57 -0700709 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
710 } else {
Johannes Bergd0fe4782010-08-23 10:46:58 +0200711 struct iwl_rxon_context *tmp;
Zhu Yib481de92007-09-25 17:54:57 -0700712 /* Initialize our rx_config data */
Johannes Bergd0fe4782010-08-23 10:46:58 +0200713 for_each_context(priv, tmp)
714 iwl_connection_init_rx_config(priv, tmp);
Abhijeet Kolekar45823532009-04-08 11:26:44 -0700715
Wey-Yi Guye3f10ce2011-07-01 07:59:26 -0700716 iwlagn_set_rxon_chain(priv, ctx);
Zhu Yib481de92007-09-25 17:54:57 -0700717 }
718
Johannes Berg15b86bf2012-03-05 11:24:36 -0800719 if (!priv->wowlan) {
Johannes Bergc8ac61c2011-07-15 13:23:45 -0700720 /* WoWLAN ucode will not reply in the same way, skip it */
721 iwl_reset_run_time_calib(priv);
722 }
Tomas Winkler4a4a9e82008-05-29 16:34:54 +0800723
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700724 set_bit(STATUS_READY, &priv->shrd->status);
Wey-Yi Guy9e2e7422010-11-12 13:52:37 -0800725
Zhu Yib481de92007-09-25 17:54:57 -0700726 /* Configure the adapter for unassociated operation */
Wey-Yi Guy805a3b82011-06-03 07:54:16 -0700727 ret = iwlagn_commit_rxon(priv, ctx);
Johannes Bergca7966c2011-04-22 10:15:23 -0700728 if (ret)
729 return ret;
Zhu Yib481de92007-09-25 17:54:57 -0700730
731 /* At this point, the NIC is initialized and operational */
Emmanuel Grumbach47f4a582008-06-12 09:47:13 +0800732 iwl_rf_kill_ct_config(priv);
Zhu Yi5a669262008-01-14 17:46:18 -0800733
Tomas Winklere1623442009-01-27 14:27:56 -0800734 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
Zhu Yib481de92007-09-25 17:54:57 -0700735
Johannes Bergca7966c2011-04-22 10:15:23 -0700736 return iwl_power_update_mode(priv, true);
Zhu Yib481de92007-09-25 17:54:57 -0700737}
738
Johannes Bergd3163832012-03-05 11:24:19 -0800739/**
740 * iwl_clear_driver_stations - clear knowledge of all stations from driver
741 * @priv: iwl priv struct
742 *
743 * This is called during iwl_down() to make sure that in the case
744 * we're coming there from a hardware restart mac80211 will be
745 * able to reconfigure stations -- if we're getting there in the
746 * normal down flow then the stations will already be cleared.
747 */
748static void iwl_clear_driver_stations(struct iwl_priv *priv)
749{
Johannes Bergd3163832012-03-05 11:24:19 -0800750 struct iwl_rxon_context *ctx;
751
Johannes Bergfa23cb02012-03-05 11:24:25 -0800752 spin_lock_bh(&priv->sta_lock);
Johannes Bergd3163832012-03-05 11:24:19 -0800753 memset(priv->stations, 0, sizeof(priv->stations));
754 priv->num_stations = 0;
755
756 priv->ucode_key_table = 0;
757
758 for_each_context(priv, ctx) {
759 /*
760 * Remove all key information that is not stored as part
761 * of station information since mac80211 may not have had
762 * a chance to remove all the keys. When device is
763 * reconfigured by mac80211 after an error all keys will
764 * be reconfigured.
765 */
766 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
767 ctx->key_mapping_keys = 0;
768 }
769
Johannes Bergfa23cb02012-03-05 11:24:25 -0800770 spin_unlock_bh(&priv->sta_lock);
Johannes Bergd3163832012-03-05 11:24:19 -0800771}
772
Emmanuel Grumbach78e5a462012-02-17 10:34:53 -0800773void iwl_down(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700774{
Dan Carpenter22dd2fd2011-03-15 10:03:24 +0300775 int exit_pending;
Zhu Yib481de92007-09-25 17:54:57 -0700776
Tomas Winklere1623442009-01-27 14:27:56 -0800777 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
Zhu Yib481de92007-09-25 17:54:57 -0700778
Emmanuel Grumbach78e5a462012-02-17 10:34:53 -0800779 lockdep_assert_held(&priv->shrd->mutex);
780
Stanislaw Gruszkad745d472010-09-13 14:46:35 +0200781 iwl_scan_cancel_timeout(priv, 200);
782
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700783 /*
784 * If active, scanning won't cancel it, so say it expired.
785 * No race since we hold the mutex here and a new one
786 * can't come in at this time.
787 */
788 ieee80211_remain_on_channel_expired(priv->hw);
789
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700790 exit_pending =
791 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
Zhu Yib481de92007-09-25 17:54:57 -0700792
Stanislaw Gruszkab62177a2010-08-20 15:23:47 +0200793 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
794 * to prevent rearm timer */
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +0100795 del_timer_sync(&priv->watchdog);
Stanislaw Gruszkab62177a2010-08-20 15:23:47 +0200796
Johannes Bergdcef7322010-08-27 08:55:52 -0700797 iwl_clear_ucode_stations(priv, NULL);
Johannes Berga194e322010-08-27 08:53:46 -0700798 iwl_dealloc_bcast_stations(priv);
Johannes Bergdb125c72010-05-07 01:49:15 -0700799 iwl_clear_driver_stations(priv);
Zhu Yib481de92007-09-25 17:54:57 -0700800
Johannes Berga1174132010-08-23 07:56:59 -0700801 /* reset BT coex data */
Wey-Yi Guyda5dbb92010-08-23 07:57:13 -0700802 priv->bt_status = 0;
Meenakshi Venkataraman207ecc52011-07-08 08:46:23 -0700803 priv->cur_rssi_ctx = NULL;
804 priv->bt_is_sco = 0;
Don Fry38622412011-12-16 07:07:36 -0800805 if (cfg(priv)->bt_params)
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -0700806 priv->bt_traffic_load =
Don Fry38622412011-12-16 07:07:36 -0800807 cfg(priv)->bt_params->bt_init_traffic_load;
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -0700808 else
809 priv->bt_traffic_load = 0;
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700810 priv->bt_full_concurrent = false;
811 priv->bt_ci_compliance = 0;
Johannes Berga1174132010-08-23 07:56:59 -0700812
Zhu Yib481de92007-09-25 17:54:57 -0700813 /* Wipe out the EXIT_PENDING status bit if we are not actually
814 * exiting the module */
815 if (!exit_pending)
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700816 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
Zhu Yib481de92007-09-25 17:54:57 -0700817
Emmanuel Grumbach859cfb02011-09-15 11:46:31 -0700818 if (priv->mac80211_registered)
Zhu Yib481de92007-09-25 17:54:57 -0700819 ieee80211_stop_queues(priv->hw);
820
Emmanuel Grumbach909e9b22011-09-15 11:46:30 -0700821 iwl_trans_stop_device(trans(priv));
822
Johannes Berg1a10f432011-04-13 03:14:44 -0700823 /* Clear out all status bits but a few that are stable across reset */
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700824 priv->shrd->status &=
825 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
Zhu Yib481de92007-09-25 17:54:57 -0700826 STATUS_RF_KILL_HW |
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700827 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
Reinette Chatre97888642008-02-06 11:20:38 -0800828 STATUS_GEO_CONFIGURED |
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700829 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
Mohamed Abbas052ec3f2008-06-30 17:23:15 +0800830 STATUS_FW_ERROR |
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700831 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
Mohamed Abbas052ec3f2008-06-30 17:23:15 +0800832 STATUS_EXIT_PENDING;
Zhu Yib481de92007-09-25 17:54:57 -0700833
Johannes Berg77834542010-10-04 05:50:36 -0700834 dev_kfree_skb(priv->beacon_skb);
Johannes Berg12e934d2010-10-04 05:50:06 -0700835 priv->beacon_skb = NULL;
Zhu Yib481de92007-09-25 17:54:57 -0700836}
837
Zhu Yib481de92007-09-25 17:54:57 -0700838/*****************************************************************************
839 *
840 * Workqueue callbacks
841 *
842 *****************************************************************************/
843
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +0800844static void iwl_bg_run_time_calib_work(struct work_struct *work)
845{
846 struct iwl_priv *priv = container_of(work, struct iwl_priv,
847 run_time_calib_work);
848
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700849 mutex_lock(&priv->shrd->mutex);
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +0800850
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700851 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
852 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700853 mutex_unlock(&priv->shrd->mutex);
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +0800854 return;
855 }
856
857 if (priv->start_calib) {
Johannes Berg0da0e5b2011-04-08 08:14:56 -0700858 iwl_chain_noise_calibration(priv);
859 iwl_sensitivity_calibration(priv);
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +0800860 }
861
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700862 mutex_unlock(&priv->shrd->mutex);
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +0800863}
864
Wey-Yi Guy73356132011-11-10 06:55:11 -0800865void iwlagn_prepare_restart(struct iwl_priv *priv)
Johannes Berge43e85c2011-04-19 07:45:16 -0700866{
867 struct iwl_rxon_context *ctx;
868 bool bt_full_concurrent;
869 u8 bt_ci_compliance;
870 u8 bt_load;
871 u8 bt_status;
Meenakshi Venkataraman207ecc52011-07-08 08:46:23 -0700872 bool bt_is_sco;
Johannes Berge43e85c2011-04-19 07:45:16 -0700873
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700874 lockdep_assert_held(&priv->shrd->mutex);
Johannes Berge43e85c2011-04-19 07:45:16 -0700875
876 for_each_context(priv, ctx)
877 ctx->vif = NULL;
878 priv->is_open = 0;
879
880 /*
881 * __iwl_down() will clear the BT status variables,
882 * which is correct, but when we restart we really
883 * want to keep them so restore them afterwards.
884 *
885 * The restart process will later pick them up and
886 * re-configure the hw when we reconfigure the BT
887 * command.
888 */
889 bt_full_concurrent = priv->bt_full_concurrent;
890 bt_ci_compliance = priv->bt_ci_compliance;
891 bt_load = priv->bt_traffic_load;
892 bt_status = priv->bt_status;
Meenakshi Venkataraman207ecc52011-07-08 08:46:23 -0700893 bt_is_sco = priv->bt_is_sco;
Johannes Berge43e85c2011-04-19 07:45:16 -0700894
Emmanuel Grumbach78e5a462012-02-17 10:34:53 -0800895 iwl_down(priv);
Johannes Berge43e85c2011-04-19 07:45:16 -0700896
897 priv->bt_full_concurrent = bt_full_concurrent;
898 priv->bt_ci_compliance = bt_ci_compliance;
899 priv->bt_traffic_load = bt_load;
900 priv->bt_status = bt_status;
Meenakshi Venkataraman207ecc52011-07-08 08:46:23 -0700901 priv->bt_is_sco = bt_is_sco;
Johannes Berge43e85c2011-04-19 07:45:16 -0700902}
903
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700904static void iwl_bg_restart(struct work_struct *data)
Zhu Yib481de92007-09-25 17:54:57 -0700905{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700906 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
Zhu Yib481de92007-09-25 17:54:57 -0700907
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700908 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
Zhu Yib481de92007-09-25 17:54:57 -0700909 return;
910
Emmanuel Grumbach63013ae2011-08-25 23:10:42 -0700911 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700912 mutex_lock(&priv->shrd->mutex);
Johannes Berge43e85c2011-04-19 07:45:16 -0700913 iwlagn_prepare_restart(priv);
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700914 mutex_unlock(&priv->shrd->mutex);
Johannes Berga1174132010-08-23 07:56:59 -0700915 iwl_cancel_deferred_work(priv);
Johannes Berg19cc1082009-05-08 13:44:36 -0700916 ieee80211_restart_hw(priv->hw);
917 } else {
Johannes Bergca7966c2011-04-22 10:15:23 -0700918 WARN_ON(1);
Johannes Berg19cc1082009-05-08 13:44:36 -0700919 }
Zhu Yib481de92007-09-25 17:54:57 -0700920}
921
Wey-Yi Guy716c74b2010-06-24 13:22:36 -0700922
Wey-Yi Guy716c74b2010-06-24 13:22:36 -0700923
Wey-Yi Guy716c74b2010-06-24 13:22:36 -0700924
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700925void iwlagn_disable_roc(struct iwl_priv *priv)
Johannes Berg9b9190d2011-01-06 08:07:10 -0800926{
927 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
Johannes Berg9b9190d2011-01-06 08:07:10 -0800928
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700929 lockdep_assert_held(&priv->shrd->mutex);
Johannes Berg9b9190d2011-01-06 08:07:10 -0800930
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700931 if (!priv->hw_roc_setup)
Johannes Berg9b9190d2011-01-06 08:07:10 -0800932 return;
933
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700934 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
Johannes Berg9b9190d2011-01-06 08:07:10 -0800935 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
Johannes Berg9b9190d2011-01-06 08:07:10 -0800936
Wey-Yi Guy898ed672011-07-13 08:38:57 -0700937 priv->hw_roc_channel = NULL;
Johannes Berg9b9190d2011-01-06 08:07:10 -0800938
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700939 memset(ctx->staging.node_addr, 0, ETH_ALEN);
940
Wey-Yi Guy805a3b82011-06-03 07:54:16 -0700941 iwlagn_commit_rxon(priv, ctx);
Johannes Berg9b9190d2011-01-06 08:07:10 -0800942
943 ctx->is_active = false;
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700944 priv->hw_roc_setup = false;
Johannes Berg9b9190d2011-01-06 08:07:10 -0800945}
946
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700947static void iwlagn_disable_roc_work(struct work_struct *work)
Johannes Berg9b9190d2011-01-06 08:07:10 -0800948{
949 struct iwl_priv *priv = container_of(work, struct iwl_priv,
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700950 hw_roc_disable_work.work);
Johannes Berg9b9190d2011-01-06 08:07:10 -0800951
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700952 mutex_lock(&priv->shrd->mutex);
Johannes Berg9b9190d2011-01-06 08:07:10 -0800953 iwlagn_disable_roc(priv);
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -0700954 mutex_unlock(&priv->shrd->mutex);
Johannes Berg9b9190d2011-01-06 08:07:10 -0800955}
956
Zhu Yib481de92007-09-25 17:54:57 -0700957/*****************************************************************************
958 *
Zhu Yib481de92007-09-25 17:54:57 -0700959 * driver setup and teardown
960 *
961 *****************************************************************************/
962
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800963static void iwl_setup_deferred_work(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700964{
Johannes Berg1ee158d2012-02-17 10:07:44 -0800965 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
Zhu Yib481de92007-09-25 17:54:57 -0700966
Emmanuel Grumbach3e10cae2011-09-06 09:31:18 -0700967 init_waitqueue_head(&priv->shrd->wait_command_queue);
Zhu Yib481de92007-09-25 17:54:57 -0700968
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700969 INIT_WORK(&priv->restart, iwl_bg_restart);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700970 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +0800971 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
Wey-Yi Guy65550632010-06-24 13:18:35 -0700972 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700973 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
Wey-Yi Guyfbba9412010-08-23 07:57:10 -0700974 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
Johannes Bergc6baf7f2011-07-23 10:24:47 -0700975 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
976 iwlagn_disable_roc_work);
Tomas Winkler2a421b92008-06-12 09:47:10 +0800977
Tomas Winkler2a421b92008-06-12 09:47:10 +0800978 iwl_setup_scan_deferred_work(priv);
Zhu Yib481de92007-09-25 17:54:57 -0700979
Don Fry38622412011-12-16 07:07:36 -0800980 if (cfg(priv)->lib->bt_setup_deferred_work)
981 cfg(priv)->lib->bt_setup_deferred_work(priv);
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800982
983 init_timer(&priv->statistics_periodic);
984 priv->statistics_periodic.data = (unsigned long)priv;
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700985 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
Zhu Yib481de92007-09-25 17:54:57 -0700986
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800987 init_timer(&priv->ucode_trace);
988 priv->ucode_trace.data = (unsigned long)priv;
989 priv->ucode_trace.function = iwl_bg_ucode_trace;
990
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +0100991 init_timer(&priv->watchdog);
992 priv->watchdog.data = (unsigned long)priv;
993 priv->watchdog.function = iwl_bg_watchdog;
Zhu Yib481de92007-09-25 17:54:57 -0700994}
995
Emmanuel Grumbach78e5a462012-02-17 10:34:53 -0800996void iwl_cancel_deferred_work(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700997{
Don Fry38622412011-12-16 07:07:36 -0800998 if (cfg(priv)->lib->cancel_deferred_work)
999 cfg(priv)->lib->cancel_deferred_work(priv);
Zhu Yib481de92007-09-25 17:54:57 -07001000
Wey-Yi Guy815e6292010-06-03 10:14:01 -07001001 cancel_work_sync(&priv->run_time_calib_work);
Zhu Yib481de92007-09-25 17:54:57 -07001002 cancel_work_sync(&priv->beacon_update);
Stanislaw Gruszkae7e16b92010-09-13 14:46:41 +02001003
1004 iwl_cancel_scan_deferred_work(priv);
1005
Wey-Yi Guybee008b2010-08-23 07:57:04 -07001006 cancel_work_sync(&priv->bt_full_concurrency);
Wey-Yi Guyfbba9412010-08-23 07:57:10 -07001007 cancel_work_sync(&priv->bt_runtime_config);
Johannes Bergc6baf7f2011-07-23 10:24:47 -07001008 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
Stanislaw Gruszkae7e16b92010-09-13 14:46:41 +02001009
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08001010 del_timer_sync(&priv->statistics_periodic);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -08001011 del_timer_sync(&priv->ucode_trace);
Zhu Yib481de92007-09-25 17:54:57 -07001012}
1013
Reinette Chatre89f186a2009-10-30 14:36:11 -07001014static void iwl_init_hw_rates(struct iwl_priv *priv,
1015 struct ieee80211_rate *rates)
1016{
1017 int i;
1018
1019 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
1020 rates[i].bitrate = iwl_rates[i].ieee * 5;
1021 rates[i].hw_value = i; /* Rate scaling will work on indexes */
1022 rates[i].hw_value_short = i;
1023 rates[i].flags = 0;
1024 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
1025 /*
1026 * If CCK != 1M then set short preamble rate flag.
1027 */
1028 rates[i].flags |=
1029 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
1030 0 : IEEE80211_RATE_SHORT_PREAMBLE;
1031 }
1032 }
1033}
1034
1035static int iwl_init_drv(struct iwl_priv *priv)
1036{
1037 int ret;
1038
Johannes Bergfa23cb02012-03-05 11:24:25 -08001039 spin_lock_init(&priv->sta_lock);
Reinette Chatre89f186a2009-10-30 14:36:11 -07001040
Emmanuel Grumbach6ac2f832011-08-25 23:10:44 -07001041 mutex_init(&priv->shrd->mutex);
Reinette Chatre89f186a2009-10-30 14:36:11 -07001042
Don Fry45c30db2011-11-30 16:58:39 -08001043 INIT_LIST_HEAD(&trans(priv)->calib_results);
Johannes Berg80e83da2011-11-25 11:11:44 -08001044
Reinette Chatre89f186a2009-10-30 14:36:11 -07001045 priv->ieee_channels = NULL;
1046 priv->ieee_rates = NULL;
1047 priv->band = IEEE80211_BAND_2GHZ;
1048
1049 priv->iw_mode = NL80211_IFTYPE_STATION;
Johannes Bergba37a3d2009-12-10 14:37:27 -08001050 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
Wey-Yi Guya13d2762010-01-22 14:22:42 -08001051 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
Wey-Yi Guy898ed672011-07-13 08:38:57 -07001052 priv->agg_tids_count = 0;
Reinette Chatre89f186a2009-10-30 14:36:11 -07001053
Wey-Yi Guy8a472da2010-02-18 22:03:06 -08001054 /* initialize force reset */
1055 priv->force_reset[IWL_RF_RESET].reset_duration =
1056 IWL_DELAY_NEXT_FORCE_RF_RESET;
1057 priv->force_reset[IWL_FW_RESET].reset_duration =
1058 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
Reinette Chatre89f186a2009-10-30 14:36:11 -07001059
Stanislaw Gruszka410f2bb2011-03-04 17:51:51 +01001060 priv->rx_statistics_jiffies = jiffies;
1061
Reinette Chatre89f186a2009-10-30 14:36:11 -07001062 /* Choose which receivers/antennas to use */
Wey-Yi Guye3f10ce2011-07-01 07:59:26 -07001063 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
Reinette Chatre89f186a2009-10-30 14:36:11 -07001064
1065 iwl_init_scan_params(priv);
1066
Wey-Yi Guy22bf59a2010-08-23 07:57:11 -07001067 /* init bt coex */
Don Fry38622412011-12-16 07:07:36 -08001068 if (cfg(priv)->bt_params &&
1069 cfg(priv)->bt_params->advanced_bt_coexist) {
Wey-Yi Guyb6e116e2010-08-23 07:57:14 -07001070 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1071 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1072 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
Wey-Yi Guy22bf59a2010-08-23 07:57:11 -07001073 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
1074 priv->bt_duration = BT_DURATION_LIMIT_DEF;
1075 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
Wey-Yi Guy22bf59a2010-08-23 07:57:11 -07001076 }
1077
Reinette Chatre89f186a2009-10-30 14:36:11 -07001078 ret = iwl_init_channel_map(priv);
1079 if (ret) {
1080 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
1081 goto err;
1082 }
1083
Wey-Yi Guyb39488a2011-08-25 23:10:33 -07001084 ret = iwl_init_geos(priv);
Reinette Chatre89f186a2009-10-30 14:36:11 -07001085 if (ret) {
1086 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
1087 goto err_free_channel_map;
1088 }
1089 iwl_init_hw_rates(priv, priv->ieee_rates);
1090
1091 return 0;
1092
1093err_free_channel_map:
1094 iwl_free_channel_map(priv);
1095err:
1096 return ret;
1097}
1098
1099static void iwl_uninit_drv(struct iwl_priv *priv)
1100{
Wey-Yi Guyb39488a2011-08-25 23:10:33 -07001101 iwl_free_geos(priv);
Reinette Chatre89f186a2009-10-30 14:36:11 -07001102 iwl_free_channel_map(priv);
Emmanuel Grumbachdfa2bdb2011-08-25 23:11:23 -07001103 if (priv->tx_cmd_pool)
1104 kmem_cache_destroy(priv->tx_cmd_pool);
Johannes Berg811ecc92010-04-06 04:12:41 -07001105 kfree(priv->scan_cmd);
Johannes Berg4ce7cc22011-05-13 11:57:40 -07001106 kfree(priv->beacon_cmd);
Johannes Berg79d3eef2011-11-10 06:55:01 -08001107 kfree(rcu_dereference_raw(priv->noa_data));
Johannes Bergc8ac61c2011-07-15 13:23:45 -07001108#ifdef CONFIG_IWLWIFI_DEBUGFS
1109 kfree(priv->wowlan_sram);
1110#endif
Reinette Chatre89f186a2009-10-30 14:36:11 -07001111}
1112
Emmanuel Grumbachdda61a42011-08-25 23:11:11 -07001113/* Size of one Rx buffer in host DRAM */
1114#define IWL_RX_BUF_SIZE_4K (4 * 1024)
1115#define IWL_RX_BUF_SIZE_8K (8 * 1024)
1116
Emmanuel Grumbach6d4dec72012-02-17 10:52:03 -08001117static void iwl_set_hw_params(struct iwl_priv *priv)
Wey-Yi Guy07d4f1a2010-07-31 08:34:08 -07001118{
Don Fry9d143e92011-04-20 15:23:57 -07001119 if (iwlagn_mod_params.amsdu_size_8K)
Emmanuel Grumbachd6189122011-08-25 23:10:39 -07001120 hw_params(priv).rx_page_order =
1121 get_order(IWL_RX_BUF_SIZE_8K);
Wey-Yi Guy07d4f1a2010-07-31 08:34:08 -07001122 else
Emmanuel Grumbachd6189122011-08-25 23:10:39 -07001123 hw_params(priv).rx_page_order =
1124 get_order(IWL_RX_BUF_SIZE_4K);
Wey-Yi Guy07d4f1a2010-07-31 08:34:08 -07001125
Johannes Berg74289942011-12-13 00:07:40 -08001126 if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
Johannes Berg54708d82012-03-05 11:24:31 -08001127 hw_params(priv).sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
Wey-Yi Guy07d4f1a2010-07-31 08:34:08 -07001128
Emmanuel Grumbachfd656932011-08-25 23:11:19 -07001129 hw_params(priv).num_ampdu_queues =
Don Fry38622412011-12-16 07:07:36 -08001130 cfg(priv)->base_params->num_of_ampdu_queues;
Emmanuel Grumbachfd656932011-08-25 23:11:19 -07001131 hw_params(priv).shadow_reg_enable =
Don Fry38622412011-12-16 07:07:36 -08001132 cfg(priv)->base_params->shadow_reg_enable;
Don Fry38622412011-12-16 07:07:36 -08001133 hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout;
Emmanuel Grumbachfd656932011-08-25 23:11:19 -07001134
Wey-Yi Guy07d4f1a2010-07-31 08:34:08 -07001135 /* Device-specific setup */
Emmanuel Grumbach6d4dec72012-02-17 10:52:03 -08001136 cfg(priv)->lib->set_hw_params(priv);
Wey-Yi Guy07d4f1a2010-07-31 08:34:08 -07001137}
1138
Wey-Yi Guy119ea182011-04-18 09:34:06 -07001139
Wey-Yi Guy119ea182011-04-18 09:34:06 -07001140
Wey-Yi Guyebfa8672011-11-25 11:11:47 -08001141static void iwl_debug_config(struct iwl_priv *priv)
1142{
Emmanuel Grumbach1042db22012-01-03 16:56:15 +02001143 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG "
Wey-Yi Guyebfa8672011-11-25 11:11:47 -08001144#ifdef CONFIG_IWLWIFI_DEBUG
1145 "enabled\n");
1146#else
1147 "disabled\n");
1148#endif
Emmanuel Grumbach1042db22012-01-03 16:56:15 +02001149 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS "
Wey-Yi Guyebfa8672011-11-25 11:11:47 -08001150#ifdef CONFIG_IWLWIFI_DEBUGFS
1151 "enabled\n");
1152#else
1153 "disabled\n");
1154#endif
Emmanuel Grumbach1042db22012-01-03 16:56:15 +02001155 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING "
Wey-Yi Guyebfa8672011-11-25 11:11:47 -08001156#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1157 "enabled\n");
1158#else
1159 "disabled\n");
1160#endif
1161
Emmanuel Grumbach1042db22012-01-03 16:56:15 +02001162 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
Wey-Yi Guy5ef15cc2011-11-30 13:24:06 -08001163#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
Wey-Yi Guyebfa8672011-11-25 11:11:47 -08001164 "enabled\n");
1165#else
1166 "disabled\n");
1167#endif
Emmanuel Grumbach1042db22012-01-03 16:56:15 +02001168 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P "
Wey-Yi Guy0cb38d62011-12-02 07:33:57 -08001169#ifdef CONFIG_IWLWIFI_P2P
1170 "enabled\n");
1171#else
1172 "disabled\n");
1173#endif
Wey-Yi Guyebfa8672011-11-25 11:11:47 -08001174}
1175
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001176static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans)
Wey-Yi Guyb2ea3452011-06-07 08:53:14 -07001177{
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001178 struct iwl_fw *fw = &nic(trans)->fw;
Wey-Yi Guyb2ea3452011-06-07 08:53:14 -07001179 int err = 0;
1180 struct iwl_priv *priv;
1181 struct ieee80211_hw *hw;
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001182 struct iwl_op_mode *op_mode;
Emmanuel Grumbach084dd792011-05-31 09:07:00 +03001183 u16 num_mac;
Johannes Berga78be212012-02-21 18:31:06 +02001184 u32 ucode_flags;
Wey-Yi Guyb2ea3452011-06-07 08:53:14 -07001185
1186 /************************
1187 * 1. Allocating HW data
1188 ************************/
Don Fryfa06ec72011-10-14 12:54:46 -07001189 hw = iwl_alloc_all();
Wey-Yi Guyb2ea3452011-06-07 08:53:14 -07001190 if (!hw) {
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001191 pr_err("%s: Cannot allocate network device\n",
1192 cfg(trans)->name);
Wey-Yi Guyb2ea3452011-06-07 08:53:14 -07001193 err = -ENOMEM;
Emmanuel Grumbach807caf22011-06-09 02:55:55 -07001194 goto out;
1195 }
1196
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001197 op_mode = hw->priv;
1198 op_mode->ops = &iwl_dvm_ops;
1199 priv = IWL_OP_MODE_GET_DVM(op_mode);
1200 priv->shrd = trans->shrd;
Emmanuel Grumbachcac988a2011-08-25 23:10:37 -07001201 priv->shrd->priv = priv;
Emmanuel Grumbacha48709c2011-05-31 08:22:30 +03001202
Emmanuel Grumbached277c92012-02-09 16:08:15 +02001203 iwl_trans_configure(trans(priv), op_mode);
1204
Wey-Yi Guyb2ea3452011-06-07 08:53:14 -07001205 /* At this point both hw and priv are allocated. */
Johannes Berg8f2d3d22010-08-23 10:46:37 +02001206
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001207 SET_IEEE80211_DEV(priv->hw, trans(priv)->dev);
Zhu Yib481de92007-09-25 17:54:57 -07001208
Don Fry1589c562012-01-27 13:15:54 -08001209 /* show what debugging capabilities we have */
Wey-Yi Guyebfa8672011-11-25 11:11:47 -08001210 iwl_debug_config(priv);
1211
Tomas Winklere1623442009-01-27 14:27:56 -08001212 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
Assaf Krauss316c30d2008-03-14 10:38:46 -07001213
Wey-Yi Guybee008b2010-08-23 07:57:04 -07001214 /* is antenna coupling more than 35dB ? */
1215 priv->bt_ant_couple_ok =
Emmanuel Grumbach48f20d32011-08-25 23:10:36 -07001216 (iwlagn_mod_params.ant_coupling >
1217 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
1218 true : false;
Wey-Yi Guybee008b2010-08-23 07:57:04 -07001219
Wey-Yi Guy9f28ebc2010-11-26 13:24:19 -08001220 /* enable/disable bt channel inhibition */
Emmanuel Grumbach48f20d32011-08-25 23:10:36 -07001221 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
Wey-Yi Guy9f28ebc2010-11-26 13:24:19 -08001222 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
1223 (priv->bt_ch_announce) ? "On" : "Off");
Wey-Yi Guyf37837c2010-08-23 07:57:12 -07001224
Wey-Yi Guy20594eb2009-08-07 15:41:39 -07001225 if (iwl_alloc_traffic_mem(priv))
1226 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
Zhu Yib481de92007-09-25 17:54:57 -07001227
Reinette Chatre731a29b2009-12-14 14:12:11 -08001228 /* these spin locks will be used in apm_ops.init and EEPROM access
Mohamed Abbasa8b50a02009-05-22 11:01:47 -07001229 * we should init now
1230 */
Emmanuel Grumbach1042db22012-01-03 16:56:15 +02001231 spin_lock_init(&trans(priv)->reg_lock);
Johannes Berg4ff70fc2012-03-05 11:24:26 -08001232 spin_lock_init(&priv->statistics.lock);
Reinette Chatre4843b5a2010-02-03 09:38:59 -08001233
Emmanuel Grumbach084dd792011-05-31 09:07:00 +03001234 /***********************
1235 * 3. Read REV register
1236 ***********************/
Shanyu Zhaoc11362c2010-03-05 17:05:20 -08001237 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
Emmanuel Grumbach08079a42012-01-09 16:23:00 +02001238 cfg(priv)->name, trans(priv)->hw_rev);
Assaf Krauss316c30d2008-03-14 10:38:46 -07001239
Emmanuel Grumbach57a1dc82012-01-08 13:22:16 +02001240 err = iwl_trans_start_hw(trans(priv));
Emmanuel Grumbach1e89cba2011-07-20 17:51:22 -07001241 if (err)
Emmanuel Grumbachb52e7ea2012-02-02 14:16:59 -08001242 goto out_free_traffic_mem;
Emmanuel Grumbach1e89cba2011-07-20 17:51:22 -07001243
Assaf Krauss316c30d2008-03-14 10:38:46 -07001244 /*****************
1245 * 4. Read EEPROM
1246 *****************/
Assaf Krauss316c30d2008-03-14 10:38:46 -07001247 /* Read the EEPROM */
Emmanuel Grumbachca77d532012-02-13 11:24:47 +02001248 err = iwl_eeprom_init(trans(priv), trans(priv)->hw_rev);
Emmanuel Grumbach8747bb42012-01-04 16:57:09 +02001249 /* Reset chip to save power until we load uCode during "up". */
Emmanuel Grumbachcc56feb2012-01-08 13:37:59 +02001250 iwl_trans_stop_hw(trans(priv));
Assaf Krauss316c30d2008-03-14 10:38:46 -07001251 if (err) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08001252 IWL_ERR(priv, "Unable to init EEPROM\n");
Emmanuel Grumbachb52e7ea2012-02-02 14:16:59 -08001253 goto out_free_traffic_mem;
Assaf Krauss316c30d2008-03-14 10:38:46 -07001254 }
Tomas Winkler8614f362008-04-23 17:14:55 -07001255 err = iwl_eeprom_check_version(priv);
1256 if (err)
Reinette Chatrec8f16132009-02-27 16:21:22 -08001257 goto out_free_eeprom;
Tomas Winkler8614f362008-04-23 17:14:55 -07001258
Johannes Berg54708d82012-03-05 11:24:31 -08001259 err = iwl_eeprom_init_hw_params(priv);
Wey-Yi Guy21a5b3c2010-11-10 13:32:59 -08001260 if (err)
1261 goto out_free_eeprom;
1262
Ron Rindjunsky02883012008-05-15 13:53:53 +08001263 /* extract MAC Address */
Don Fryab36eab2011-11-30 15:37:32 -08001264 iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr);
Wey-Yi Guyc6fa17e2010-07-15 05:58:30 -07001265 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
1266 priv->hw->wiphy->addresses = priv->addresses;
1267 priv->hw->wiphy->n_addresses = 1;
Don Fryab36eab2011-11-30 15:37:32 -08001268 num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS);
Wey-Yi Guyc6fa17e2010-07-15 05:58:30 -07001269 if (num_mac > 1) {
1270 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
1271 ETH_ALEN);
1272 priv->addresses[1].addr[5]++;
1273 priv->hw->wiphy->n_addresses++;
1274 }
Assaf Krauss316c30d2008-03-14 10:38:46 -07001275
1276 /************************
1277 * 5. Setup HW constants
1278 ************************/
Emmanuel Grumbach6d4dec72012-02-17 10:52:03 -08001279 iwl_set_hw_params(priv);
Assaf Krauss316c30d2008-03-14 10:38:46 -07001280
Johannes Berga78be212012-02-21 18:31:06 +02001281 ucode_flags = fw->ucode_capa.flags;
1282
1283#ifndef CONFIG_IWLWIFI_P2P
1284 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1285#endif
1286 if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1287 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1288
1289 /*
1290 * if not PAN, then don't support P2P -- might be a uCode
1291 * packaging bug or due to the eeprom check above
1292 */
1293 if (!(ucode_flags & IWL_UCODE_TLV_FLAGS_PAN))
1294 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1295
1296
Assaf Krauss316c30d2008-03-14 10:38:46 -07001297 /*******************
Tomas Winkler6ba87952008-05-15 13:54:17 +08001298 * 6. Setup priv
Assaf Krauss316c30d2008-03-14 10:38:46 -07001299 *******************/
Zhu Yib481de92007-09-25 17:54:57 -07001300
Tomas Winkler6ba87952008-05-15 13:54:17 +08001301 err = iwl_init_drv(priv);
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001302 if (err)
Ron Rindjunsky399f49002008-04-23 17:14:56 -07001303 goto out_free_eeprom;
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001304 /* At this point both hw and priv are initialized. */
Assaf Krauss316c30d2008-03-14 10:38:46 -07001305
Assaf Krauss316c30d2008-03-14 10:38:46 -07001306 /********************
Abhijeet Kolekar09f9bf72009-04-20 14:37:03 -07001307 * 7. Setup services
Assaf Krauss316c30d2008-03-14 10:38:46 -07001308 ********************/
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08001309 iwl_setup_deferred_work(priv);
Emmanuel Grumbach653fa4a2008-06-30 17:23:11 +08001310 iwl_setup_rx_handlers(priv);
Cindy H. Kao4613e722011-05-06 10:40:15 -07001311 iwl_testmode_init(priv);
Assaf Krauss316c30d2008-03-14 10:38:46 -07001312
Emmanuel Grumbach58d0f362008-06-12 09:47:19 +08001313 iwl_power_initialize(priv);
Wey-Yi Guy39b73fb2009-07-24 11:13:02 -07001314 iwl_tt_initialize(priv);
Johannes Berg158bea02010-01-22 14:22:53 -08001315
Emmanuel Grumbache211b242012-02-07 10:35:18 +02001316 snprintf(priv->hw->wiphy->fw_version,
1317 sizeof(priv->hw->wiphy->fw_version),
1318 "%s", fw->fw_version);
Johannes Berg562db532010-04-29 07:41:53 -07001319
Emmanuel Grumbache211b242012-02-07 10:35:18 +02001320 priv->new_scan_threshold_behaviour =
Johannes Berga78be212012-02-21 18:31:06 +02001321 !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
Emmanuel Grumbache211b242012-02-07 10:35:18 +02001322
Johannes Berga78be212012-02-21 18:31:06 +02001323 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
Emmanuel Grumbache211b242012-02-07 10:35:18 +02001324 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1325 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1326 } else {
1327 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1328 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1329 }
1330
1331 priv->phy_calib_chain_noise_reset_cmd =
1332 fw->ucode_capa.standard_phy_calibration_size;
1333 priv->phy_calib_chain_noise_gain_cmd =
1334 fw->ucode_capa.standard_phy_calibration_size + 1;
1335
1336 /* initialize all valid contexts */
Johannes Berga78be212012-02-21 18:31:06 +02001337 iwl_init_context(priv, ucode_flags);
Emmanuel Grumbache211b242012-02-07 10:35:18 +02001338
1339 /**************************************************
1340 * This is still part of probe() in a sense...
1341 *
1342 * 9. Setup and register with mac80211 and debugfs
1343 **************************************************/
1344 err = iwlagn_mac_setup_register(priv, &fw->ucode_capa);
Johannes Berg158bea02010-01-22 14:22:53 -08001345 if (err)
Emmanuel Grumbach7d476182010-05-23 00:14:08 -07001346 goto out_destroy_workqueue;
Johannes Berg158bea02010-01-22 14:22:53 -08001347
Emmanuel Grumbache211b242012-02-07 10:35:18 +02001348 err = iwl_dbgfs_register(priv, DRV_NAME);
1349 if (err)
1350 IWL_ERR(priv,
1351 "failed to create debugfs files. Ignoring error: %d\n",
1352 err);
1353
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001354 return op_mode;
Zhu Yib481de92007-09-25 17:54:57 -07001355
Emmanuel Grumbach34c1b7b2011-07-04 08:58:19 +03001356out_destroy_workqueue:
Johannes Berg1ee158d2012-02-17 10:07:44 -08001357 destroy_workqueue(priv->workqueue);
1358 priv->workqueue = NULL;
Tomas Winkler6ba87952008-05-15 13:54:17 +08001359 iwl_uninit_drv(priv);
Emmanuel Grumbach34c1b7b2011-07-04 08:58:19 +03001360out_free_eeprom:
Don Fryab36eab2011-11-30 15:37:32 -08001361 iwl_eeprom_free(priv->shrd);
Emmanuel Grumbach34c1b7b2011-07-04 08:58:19 +03001362out_free_traffic_mem:
Wey-Yi Guy20594eb2009-08-07 15:41:39 -07001363 iwl_free_traffic_mem(priv);
Wey-Yi Guyd7c76f42009-10-09 13:20:17 -07001364 ieee80211_free_hw(priv->hw);
Emmanuel Grumbach34c1b7b2011-07-04 08:58:19 +03001365out:
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001366 op_mode = NULL;
1367 return op_mode;
Zhu Yib481de92007-09-25 17:54:57 -07001368}
1369
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001370static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
Zhu Yib481de92007-09-25 17:54:57 -07001371{
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001372 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1373
Don Fry96502ce2012-02-06 16:00:14 -08001374 wait_for_completion(&nic(priv)->request_firmware_complete);
Johannes Berg562db532010-04-29 07:41:53 -07001375
Tomas Winklere1623442009-01-27 14:27:56 -08001376 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
Zhu Yib481de92007-09-25 17:54:57 -07001377
Emmanuel Grumbach67249622008-05-29 16:35:26 +08001378 iwl_dbgfs_unregister(priv);
Emmanuel Grumbach67249622008-05-29 16:35:26 +08001379
Wey-Yi Guy7a4e5282011-05-06 10:21:28 -07001380 iwl_testmode_cleanup(priv);
Don Fry09af1402011-12-09 10:07:38 -08001381 iwlagn_mac_unregister(priv);
Ron Rindjunskyc4f55232008-03-28 16:21:10 -07001382
Wey-Yi Guy39b73fb2009-07-24 11:13:02 -07001383 iwl_tt_exit(priv);
1384
Emmanuel Grumbachae2c30b2011-08-25 23:11:20 -07001385 /*This will stop the queues, move the device to low power state */
1386 iwl_trans_stop_device(trans(priv));
Mohamed Abbas0359fac2008-03-28 16:21:08 -07001387
Don Fryab36eab2011-11-30 15:37:32 -08001388 iwl_eeprom_free(priv->shrd);
Zhu Yib481de92007-09-25 17:54:57 -07001389
Mohamed Abbas948c1712007-10-25 17:15:45 +08001390 /*netif_stop_queue(dev); */
Johannes Berg1ee158d2012-02-17 10:07:44 -08001391 flush_workqueue(priv->workqueue);
Mohamed Abbas948c1712007-10-25 17:15:45 +08001392
Wey-Yi Guyade4c642011-10-10 07:27:11 -07001393 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
Johannes Berg1ee158d2012-02-17 10:07:44 -08001394 * priv->workqueue... so we can't take down the workqueue
Zhu Yib481de92007-09-25 17:54:57 -07001395 * until now... */
Johannes Berg1ee158d2012-02-17 10:07:44 -08001396 destroy_workqueue(priv->workqueue);
1397 priv->workqueue = NULL;
Wey-Yi Guy20594eb2009-08-07 15:41:39 -07001398 iwl_free_traffic_mem(priv);
Zhu Yib481de92007-09-25 17:54:57 -07001399
Tomas Winkler6ba87952008-05-15 13:54:17 +08001400 iwl_uninit_drv(priv);
Zhu Yib481de92007-09-25 17:54:57 -07001401
Johannes Berg77834542010-10-04 05:50:36 -07001402 dev_kfree_skb(priv->beacon_skb);
Zhu Yib481de92007-09-25 17:54:57 -07001403
1404 ieee80211_free_hw(priv->hw);
1405}
1406
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001407const struct iwl_op_mode_ops iwl_dvm_ops = {
1408 .start = iwl_op_mode_dvm_start,
1409 .stop = iwl_op_mode_dvm_stop,
Emmanuel Grumbachdb70f292012-02-09 16:08:15 +02001410 .rx = iwl_rx_dispatch,
Emmanuel Grumbach02e38352012-02-09 16:08:15 +02001411 .queue_full = iwl_stop_sw_queue,
1412 .queue_not_full = iwl_wake_sw_queue,
Emmanuel Grumbach7120d982012-02-09 16:08:15 +02001413 .hw_rf_kill = iwl_set_hw_rfkill_state,
Emmanuel Grumbached277c92012-02-09 16:08:15 +02001414 .free_skb = iwl_free_skb,
Emmanuel Grumbachbcb93212012-02-09 16:08:15 +02001415 .nic_error = iwl_nic_error,
Emmanuel Grumbachd0f76d62012-02-09 16:08:15 +02001416};
Zhu Yib481de92007-09-25 17:54:57 -07001417
1418/*****************************************************************************
1419 *
1420 * driver and module entry point
1421 *
1422 *****************************************************************************/
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07001423static int __init iwl_init(void)
Zhu Yib481de92007-09-25 17:54:57 -07001424{
1425
1426 int ret;
Joe Perchesc96c31e2010-07-26 14:39:58 -07001427 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
1428 pr_info(DRV_COPYRIGHT "\n");
Reinette Chatre897e1cf2008-03-28 16:21:09 -07001429
Tomas Winklere227cea2008-07-18 13:53:05 +08001430 ret = iwlagn_rate_control_register();
Reinette Chatre897e1cf2008-03-28 16:21:09 -07001431 if (ret) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001432 pr_err("Unable to register rate control algorithm: %d\n", ret);
Reinette Chatre897e1cf2008-03-28 16:21:09 -07001433 return ret;
1434 }
1435
Emmanuel Grumbach48d1a212011-05-24 11:39:02 +03001436 ret = iwl_pci_register_driver();
Zhu Yib481de92007-09-25 17:54:57 -07001437
Emmanuel Grumbach48d1a212011-05-24 11:39:02 +03001438 if (ret)
1439 goto error_register;
Zhu Yib481de92007-09-25 17:54:57 -07001440 return ret;
Reinette Chatre897e1cf2008-03-28 16:21:09 -07001441
Reinette Chatre897e1cf2008-03-28 16:21:09 -07001442error_register:
Tomas Winklere227cea2008-07-18 13:53:05 +08001443 iwlagn_rate_control_unregister();
Reinette Chatre897e1cf2008-03-28 16:21:09 -07001444 return ret;
Zhu Yib481de92007-09-25 17:54:57 -07001445}
1446
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07001447static void __exit iwl_exit(void)
Zhu Yib481de92007-09-25 17:54:57 -07001448{
Emmanuel Grumbach48d1a212011-05-24 11:39:02 +03001449 iwl_pci_unregister_driver();
Tomas Winklere227cea2008-07-18 13:53:05 +08001450 iwlagn_rate_control_unregister();
Zhu Yib481de92007-09-25 17:54:57 -07001451}
1452
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07001453module_exit(iwl_exit);
1454module_init(iwl_init);
Reinette Chatrea562a9d2009-07-17 09:30:24 -07001455
1456#ifdef CONFIG_IWLWIFI_DEBUG
Emmanuel Grumbach48f20d32011-08-25 23:10:36 -07001457module_param_named(debug, iwlagn_mod_params.debug_level, uint,
1458 S_IRUGO | S_IWUSR);
Reinette Chatrea562a9d2009-07-17 09:30:24 -07001459MODULE_PARM_DESC(debug, "debug output mask");
1460#endif
1461
Wey-Yi Guy2b068612010-03-22 09:17:39 -07001462module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
1463MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
Wey-Yi Guy2b068612010-03-22 09:17:39 -07001464module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
1465MODULE_PARM_DESC(queues_num, "number of hw queues.");
Johannes Berg74289942011-12-13 00:07:40 -08001466module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO);
1467MODULE_PARM_DESC(11n_disable,
1468 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
Wey-Yi Guy2b068612010-03-22 09:17:39 -07001469module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
1470 int, S_IRUGO);
1471MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
Wey-Yi Guy2b068612010-03-22 09:17:39 -07001472module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
1473MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
Johannes Bergdd7a2502010-04-28 23:33:10 -07001474
Emmanuel Grumbach48f20d32011-08-25 23:10:36 -07001475module_param_named(ucode_alternative,
1476 iwlagn_mod_params.wanted_ucode_alternative,
1477 int, S_IRUGO);
Johannes Bergdd7a2502010-04-28 23:33:10 -07001478MODULE_PARM_DESC(ucode_alternative,
1479 "specify ucode alternative to use from ucode file");
Wey-Yi Guybee008b2010-08-23 07:57:04 -07001480
Emmanuel Grumbach48f20d32011-08-25 23:10:36 -07001481module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
1482 int, S_IRUGO);
Wey-Yi Guybee008b2010-08-23 07:57:04 -07001483MODULE_PARM_DESC(antenna_coupling,
1484 "specify antenna coupling in dB (defualt: 0 dB)");
Wey-Yi Guyf37837c2010-08-23 07:57:12 -07001485
Emmanuel Grumbach48f20d32011-08-25 23:10:36 -07001486module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
1487 bool, S_IRUGO);
Wey-Yi Guy9f28ebc2010-11-26 13:24:19 -08001488MODULE_PARM_DESC(bt_ch_inhibition,
Wey-Yi Guyfee84f02011-08-25 23:10:57 -07001489 "Enable BT channel inhibition (default: enable)");
Stanislaw Gruszkab7977ff2011-02-28 14:33:15 +01001490
1491module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
1492MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
1493
1494module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
1495MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
Wey-Yi Guyb60eec92011-06-03 13:52:38 -07001496
Wey-Yi Guy9995ffe2011-12-02 08:19:19 -08001497module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO);
Wey-Yi Guy300d0832011-06-25 09:17:41 -07001498MODULE_PARM_DESC(wd_disable,
Wey-Yi Guy9995ffe2011-12-02 08:19:19 -08001499 "Disable stuck queue watchdog timer 0=system default, "
1500 "1=disable, 2=enable (default: 0)");
Wey-Yi Guy300d0832011-06-25 09:17:41 -07001501
Wey-Yi Guyb60eec92011-06-03 13:52:38 -07001502/*
1503 * set bt_coex_active to true, uCode will do kill/defer
1504 * every time the priority line is asserted (BT is sending signals on the
1505 * priority line in the PCIx).
1506 * set bt_coex_active to false, uCode will ignore the BT activity and
1507 * perform the normal operation
1508 *
1509 * User might experience transmit issue on some platform due to WiFi/BT
1510 * co-exist problem. The possible behaviors are:
1511 * Able to scan and finding all the available AP
1512 * Not able to associate with any AP
1513 * On those platforms, WiFi communication can be restored by set
1514 * "bt_coex_active" module parameter to "false"
1515 *
1516 * default: bt_coex_active = true (BT_COEX_ENABLE)
1517 */
1518module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
1519 bool, S_IRUGO);
1520MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
Wey-Yi Guy6b0184c2011-06-03 13:52:39 -07001521
1522module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
1523MODULE_PARM_DESC(led_mode, "0=system default, "
Wey-Yi Guy42602dd2012-01-19 12:16:46 -08001524 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
Wey-Yi Guy3f1e5f42011-06-03 13:52:40 -07001525
Wey-Yi Guy0172b022011-06-11 10:00:05 -07001526module_param_named(power_save, iwlagn_mod_params.power_save,
1527 bool, S_IRUGO);
1528MODULE_PARM_DESC(power_save,
1529 "enable WiFi power management (default: disable)");
1530
Wey-Yi Guyf7538162011-06-11 10:00:06 -07001531module_param_named(power_level, iwlagn_mod_params.power_level,
1532 int, S_IRUGO);
1533MODULE_PARM_DESC(power_level,
1534 "default power save level (range from 1 - 5, default: 1)");
1535
Wey-Yi Guydd5b6d02011-08-25 23:10:55 -07001536module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
1537 bool, S_IRUGO);
1538MODULE_PARM_DESC(auto_agg,
1539 "enable agg w/o check traffic load (default: enable)");
1540
Wey-Yi Guy3f1e5f42011-06-03 13:52:40 -07001541/*
1542 * For now, keep using power level 1 instead of automatically
1543 * adjusting ...
1544 */
1545module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
1546 bool, S_IRUGO);
1547MODULE_PARM_DESC(no_sleep_autoadjust,
1548 "don't automatically adjust sleep level "
1549 "according to maximum network latency (default: true)");