blob: 19bb567d1c52c1fbe9e15385628b524afc4701a9 [file] [log] [blame]
Zhu Yib481de92007-09-25 17:54:57 -07001/******************************************************************************
2 *
Reinette Chatre1f447802010-01-15 13:43:41 -08003 * Copyright(c) 2003 - 2010 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 *****************************************************************************/
29
Joe Perchesc96c31e2010-07-26 14:39:58 -070030#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
Zhu Yib481de92007-09-25 17:54:57 -070032#include <linux/kernel.h>
33#include <linux/module.h>
Zhu Yib481de92007-09-25 17:54:57 -070034#include <linux/init.h>
35#include <linux/pci.h>
John W. Linville1a7123c2010-08-05 14:39:31 -040036#include <linux/pci-aspm.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090037#include <linux/slab.h>
Zhu Yib481de92007-09-25 17:54:57 -070038#include <linux/dma-mapping.h>
39#include <linux/delay.h>
Alexey Dobriyand43c36d2009-10-07 17:09:06 +040040#include <linux/sched.h>
Zhu Yib481de92007-09-25 17:54:57 -070041#include <linux/skbuff.h>
42#include <linux/netdevice.h>
43#include <linux/wireless.h>
44#include <linux/firmware.h>
Zhu Yib481de92007-09-25 17:54:57 -070045#include <linux/etherdevice.h>
46#include <linux/if_arp.h>
47
Zhu Yib481de92007-09-25 17:54:57 -070048#include <net/mac80211.h>
49
50#include <asm/div64.h>
51
Samuel Ortiza3139c52008-12-19 10:37:09 +080052#define DRV_NAME "iwlagn"
53
Assaf Krauss6bc913b2008-03-11 16:17:18 -070054#include "iwl-eeprom.h"
Tomas Winkler3e0d4cb2008-04-24 11:55:38 -070055#include "iwl-dev.h"
Tomas Winklerfee12472008-04-03 16:05:21 -070056#include "iwl-core.h"
Tomas Winkler3395f6e2008-03-25 16:33:37 -070057#include "iwl-io.h"
Zhu Yib481de92007-09-25 17:54:57 -070058#include "iwl-helpers.h"
Emmanuel Grumbach6974e362008-04-14 21:16:06 -070059#include "iwl-sta.h"
Johannes Berg0de76732010-09-22 18:02:11 +020060#include "iwl-agn-calib.h"
Johannes Berga1175122010-01-21 06:21:10 -080061#include "iwl-agn.h"
Wey-Yi Guy5ed540a2011-01-21 15:26:39 -080062#include "iwl-agn-led.h"
Zhu Yib481de92007-09-25 17:54:57 -070063
Christoph Hellwig416e1432007-10-25 17:15:49 +080064
Zhu Yib481de92007-09-25 17:54:57 -070065/******************************************************************************
66 *
67 * module boiler plate
68 *
69 ******************************************************************************/
70
Zhu Yib481de92007-09-25 17:54:57 -070071/*
72 * module name, copyright, version, etc.
Zhu Yib481de92007-09-25 17:54:57 -070073 */
Tomas Winklerd783b062008-07-18 13:53:02 +080074#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
Zhu Yib481de92007-09-25 17:54:57 -070075
Tomas Winkler0a6857e2008-03-12 16:58:49 -070076#ifdef CONFIG_IWLWIFI_DEBUG
Zhu Yib481de92007-09-25 17:54:57 -070077#define VD "d"
78#else
79#define VD
80#endif
81
Reinette Chatre81963d62010-01-22 14:22:57 -080082#define DRV_VERSION IWLWIFI_VERSION VD
Zhu Yib481de92007-09-25 17:54:57 -070083
Zhu Yib481de92007-09-25 17:54:57 -070084
85MODULE_DESCRIPTION(DRV_DESCRIPTION);
86MODULE_VERSION(DRV_VERSION);
Tomas Winklera7b75202008-12-11 10:33:41 -080087MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
Zhu Yib481de92007-09-25 17:54:57 -070088MODULE_LICENSE("GPL");
89
Wey-Yi Guybee008b2010-08-23 07:57:04 -070090static int iwlagn_ant_coupling;
Wey-Yi Guyf37837c2010-08-23 07:57:12 -070091static bool iwlagn_bt_ch_announce = 1;
Wey-Yi Guybee008b2010-08-23 07:57:04 -070092
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -070093void iwl_update_chain_flags(struct iwl_priv *priv)
Mohamed Abbas5da4b552008-04-21 15:41:51 -070094{
Johannes Berg246ed352010-08-23 10:46:32 +020095 struct iwl_rxon_context *ctx;
Mohamed Abbas5da4b552008-04-21 15:41:51 -070096
Johannes Berg246ed352010-08-23 10:46:32 +020097 if (priv->cfg->ops->hcmd->set_rxon_chain) {
98 for_each_context(priv, ctx) {
99 priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
Shanyu Zhao6163a372010-11-12 13:48:13 -0800100 if (ctx->active.rx_chain != ctx->staging.rx_chain)
101 iwlcore_commit_rxon(priv, ctx);
Johannes Berg246ed352010-08-23 10:46:32 +0200102 }
103 }
Mohamed Abbas5da4b552008-04-21 15:41:51 -0700104}
105
Tomas Winklerfcab4232008-05-15 13:54:01 +0800106static void iwl_clear_free_frames(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700107{
108 struct list_head *element;
109
Tomas Winklere1623442009-01-27 14:27:56 -0800110 IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
Zhu Yib481de92007-09-25 17:54:57 -0700111 priv->frames_count);
112
113 while (!list_empty(&priv->free_frames)) {
114 element = priv->free_frames.next;
115 list_del(element);
Tomas Winklerfcab4232008-05-15 13:54:01 +0800116 kfree(list_entry(element, struct iwl_frame, list));
Zhu Yib481de92007-09-25 17:54:57 -0700117 priv->frames_count--;
118 }
119
120 if (priv->frames_count) {
Winkler, Tomas39aadf82008-12-19 10:37:32 +0800121 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
Zhu Yib481de92007-09-25 17:54:57 -0700122 priv->frames_count);
123 priv->frames_count = 0;
124 }
125}
126
Tomas Winklerfcab4232008-05-15 13:54:01 +0800127static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700128{
Tomas Winklerfcab4232008-05-15 13:54:01 +0800129 struct iwl_frame *frame;
Zhu Yib481de92007-09-25 17:54:57 -0700130 struct list_head *element;
131 if (list_empty(&priv->free_frames)) {
132 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
133 if (!frame) {
Winkler, Tomas15b16872008-12-19 10:37:33 +0800134 IWL_ERR(priv, "Could not allocate frame!\n");
Zhu Yib481de92007-09-25 17:54:57 -0700135 return NULL;
136 }
137
138 priv->frames_count++;
139 return frame;
140 }
141
142 element = priv->free_frames.next;
143 list_del(element);
Tomas Winklerfcab4232008-05-15 13:54:01 +0800144 return list_entry(element, struct iwl_frame, list);
Zhu Yib481de92007-09-25 17:54:57 -0700145}
146
Tomas Winklerfcab4232008-05-15 13:54:01 +0800147static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
Zhu Yib481de92007-09-25 17:54:57 -0700148{
149 memset(frame, 0, sizeof(*frame));
150 list_add(&frame->list, &priv->free_frames);
151}
152
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800153static u32 iwl_fill_beacon_frame(struct iwl_priv *priv,
Johannes Berg77834542010-10-04 05:50:36 -0700154 struct ieee80211_hdr *hdr,
155 int left)
Zhu Yib481de92007-09-25 17:54:57 -0700156{
Johannes Berg77834542010-10-04 05:50:36 -0700157 lockdep_assert_held(&priv->mutex);
158
Johannes Berg12e934d2010-10-04 05:50:06 -0700159 if (!priv->beacon_skb)
Zhu Yib481de92007-09-25 17:54:57 -0700160 return 0;
161
Johannes Berg12e934d2010-10-04 05:50:06 -0700162 if (priv->beacon_skb->len > left)
Zhu Yib481de92007-09-25 17:54:57 -0700163 return 0;
164
Johannes Berg12e934d2010-10-04 05:50:06 -0700165 memcpy(hdr, priv->beacon_skb->data, priv->beacon_skb->len);
Zhu Yib481de92007-09-25 17:54:57 -0700166
Johannes Berg12e934d2010-10-04 05:50:06 -0700167 return priv->beacon_skb->len;
Zhu Yib481de92007-09-25 17:54:57 -0700168}
169
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800170/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
171static void iwl_set_beacon_tim(struct iwl_priv *priv,
Johannes Berg77834542010-10-04 05:50:36 -0700172 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
173 u8 *beacon, u32 frame_size)
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800174{
175 u16 tim_idx;
176 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
177
178 /*
179 * The index is relative to frame start but we start looking at the
180 * variable-length part of the beacon.
181 */
182 tim_idx = mgmt->u.beacon.variable - beacon;
183
184 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
185 while ((tim_idx < (frame_size - 2)) &&
186 (beacon[tim_idx] != WLAN_EID_TIM))
187 tim_idx += beacon[tim_idx+1] + 2;
188
189 /* If TIM field was found, set variables */
190 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
191 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
192 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
193 } else
194 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
195}
196
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700197static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800198 struct iwl_frame *frame)
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800199{
200 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800201 u32 frame_size;
202 u32 rate_flags;
203 u32 rate;
204 /*
205 * We have to set up the TX command, the TX Beacon command, and the
206 * beacon contents.
207 */
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800208
Johannes Berg76d04812010-08-23 10:46:47 +0200209 lockdep_assert_held(&priv->mutex);
210
211 if (!priv->beacon_ctx) {
212 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
Julia Lawall950094c2010-09-05 21:00:26 +0200213 return 0;
Johannes Berg76d04812010-08-23 10:46:47 +0200214 }
215
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800216 /* Initialize memory */
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800217 tx_beacon_cmd = &frame->u.beacon;
218 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
219
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800220 /* Set up TX beacon contents */
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800221 frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame,
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800222 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800223 if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE))
224 return 0;
Johannes Berg40bbfd42010-10-07 04:00:33 -0700225 if (!frame_size)
226 return 0;
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800227
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800228 /* Set up TX command fields */
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800229 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
Johannes Berg76d04812010-08-23 10:46:47 +0200230 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800231 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800232 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800233 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
234
235 /* Set up TX beacon command fields */
236 iwl_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame,
Johannes Berg77834542010-10-04 05:50:36 -0700237 frame_size);
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800238
239 /* Set up packet rate and flags */
Johannes Berg76d04812010-08-23 10:46:47 +0200240 rate = iwl_rate_get_lowest_plcp(priv, priv->beacon_ctx);
Johannes Berg0e1654f2010-05-18 02:48:36 -0700241 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
242 priv->hw_params.valid_tx_ant);
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800243 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
244 if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE))
245 rate_flags |= RATE_MCS_CCK_MSK;
246 tx_beacon_cmd->tx.rate_n_flags = iwl_hw_set_rate_n_flags(rate,
247 rate_flags);
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800248
249 return sizeof(*tx_beacon_cmd) + frame_size;
250}
Johannes Berg2295c662010-10-23 09:15:41 -0700251
252int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700253{
Tomas Winklerfcab4232008-05-15 13:54:01 +0800254 struct iwl_frame *frame;
Zhu Yib481de92007-09-25 17:54:57 -0700255 unsigned int frame_size;
256 int rc;
Zhu Yib481de92007-09-25 17:54:57 -0700257
Tomas Winklerfcab4232008-05-15 13:54:01 +0800258 frame = iwl_get_free_frame(priv);
Zhu Yib481de92007-09-25 17:54:57 -0700259 if (!frame) {
Winkler, Tomas15b16872008-12-19 10:37:33 +0800260 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
Zhu Yib481de92007-09-25 17:54:57 -0700261 "command.\n");
262 return -ENOMEM;
263 }
264
Daniel C Halperin47ff65c2009-11-13 11:56:33 -0800265 frame_size = iwl_hw_get_beacon_cmd(priv, frame);
266 if (!frame_size) {
267 IWL_ERR(priv, "Error configuring the beacon command\n");
268 iwl_free_frame(priv, frame);
269 return -EINVAL;
270 }
Zhu Yib481de92007-09-25 17:54:57 -0700271
Tomas Winkler857485c2008-03-21 13:53:44 -0700272 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
Zhu Yib481de92007-09-25 17:54:57 -0700273 &frame->u.cmd[0]);
274
Tomas Winklerfcab4232008-05-15 13:54:01 +0800275 iwl_free_frame(priv, frame);
Zhu Yib481de92007-09-25 17:54:57 -0700276
277 return rc;
278}
279
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800280static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
281{
282 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
283
284 dma_addr_t addr = get_unaligned_le32(&tb->lo);
285 if (sizeof(dma_addr_t) > sizeof(u32))
286 addr |=
287 ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;
288
289 return addr;
290}
291
292static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
293{
294 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
295
296 return le16_to_cpu(tb->hi_n_len) >> 4;
297}
298
299static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
300 dma_addr_t addr, u16 len)
301{
302 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
303 u16 hi_n_len = len << 4;
304
305 put_unaligned_le32(addr, &tb->lo);
306 if (sizeof(dma_addr_t) > sizeof(u32))
307 hi_n_len |= ((addr >> 16) >> 16) & 0xF;
308
309 tb->hi_n_len = cpu_to_le16(hi_n_len);
310
311 tfd->num_tbs = idx + 1;
312}
313
314static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
315{
316 return tfd->num_tbs & 0x1f;
317}
318
319/**
320 * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
321 * @priv - driver private data
322 * @txq - tx queue
323 *
324 * Does NOT advance any TFD circular buffer read/write indexes
325 * Does NOT free the TFD itself (which is within circular buffer)
326 */
327void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
328{
Samuel Ortiz59606ff2009-01-23 13:45:13 -0800329 struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds;
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800330 struct iwl_tfd *tfd;
331 struct pci_dev *dev = priv->pci_dev;
332 int index = txq->q.read_ptr;
333 int i;
334 int num_tbs;
335
336 tfd = &tfd_tmp[index];
337
338 /* Sanity check on number of chunks */
339 num_tbs = iwl_tfd_get_num_tbs(tfd);
340
341 if (num_tbs >= IWL_NUM_OF_TBS) {
342 IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
343 /* @todo issue fatal error, it is quite serious situation */
344 return;
345 }
346
347 /* Unmap tx_cmd */
348 if (num_tbs)
349 pci_unmap_single(dev,
FUJITA Tomonori2e724442010-06-03 14:19:20 +0900350 dma_unmap_addr(&txq->meta[index], mapping),
351 dma_unmap_len(&txq->meta[index], len),
Fenghua Yu96891ce2009-02-18 15:54:33 -0800352 PCI_DMA_BIDIRECTIONAL);
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800353
354 /* Unmap chunks, if any. */
Johannes Bergff0d91c2010-05-17 02:37:34 -0700355 for (i = 1; i < num_tbs; i++)
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800356 pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i),
357 iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);
358
Johannes Bergff0d91c2010-05-17 02:37:34 -0700359 /* free SKB */
360 if (txq->txb) {
361 struct sk_buff *skb;
Johannes Berg6f802402010-05-17 02:37:32 -0700362
Johannes Bergff0d91c2010-05-17 02:37:34 -0700363 skb = txq->txb[txq->q.read_ptr].skb;
Johannes Berg6f802402010-05-17 02:37:32 -0700364
Johannes Bergff0d91c2010-05-17 02:37:34 -0700365 /* can be called from irqs-disabled context */
366 if (skb) {
367 dev_kfree_skb_any(skb);
368 txq->txb[txq->q.read_ptr].skb = NULL;
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800369 }
370 }
371}
372
373int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
374 struct iwl_tx_queue *txq,
375 dma_addr_t addr, u16 len,
376 u8 reset, u8 pad)
377{
378 struct iwl_queue *q;
Samuel Ortiz59606ff2009-01-23 13:45:13 -0800379 struct iwl_tfd *tfd, *tfd_tmp;
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800380 u32 num_tbs;
381
382 q = &txq->q;
Samuel Ortiz59606ff2009-01-23 13:45:13 -0800383 tfd_tmp = (struct iwl_tfd *)txq->tfds;
384 tfd = &tfd_tmp[q->write_ptr];
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800385
386 if (reset)
387 memset(tfd, 0, sizeof(*tfd));
388
389 num_tbs = iwl_tfd_get_num_tbs(tfd);
390
391 /* Each TFD can point to a maximum 20 Tx buffers */
392 if (num_tbs >= IWL_NUM_OF_TBS) {
393 IWL_ERR(priv, "Error can not send more than %d chunks\n",
394 IWL_NUM_OF_TBS);
395 return -EINVAL;
396 }
397
398 BUG_ON(addr & ~DMA_BIT_MASK(36));
399 if (unlikely(addr & ~IWL_TX_DMA_MASK))
400 IWL_ERR(priv, "Unaligned address = %llx\n",
401 (unsigned long long)addr);
402
403 iwl_tfd_set_tb(tfd, num_tbs, addr, len);
404
405 return 0;
406}
407
Samuel Ortiza8e74e272009-01-23 13:45:14 -0800408/*
409 * Tell nic where to find circular buffer of Tx Frame Descriptors for
410 * given Tx queue, and enable the DMA channel used for that queue.
411 *
412 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
413 * channels supported in hardware.
414 */
415int iwl_hw_tx_queue_init(struct iwl_priv *priv,
416 struct iwl_tx_queue *txq)
417{
Samuel Ortiza8e74e272009-01-23 13:45:14 -0800418 int txq_id = txq->q.id;
419
Samuel Ortiza8e74e272009-01-23 13:45:14 -0800420 /* Circular buffer (TFD queue in DRAM) physical base address */
421 iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
422 txq->q.dma_addr >> 8);
423
Samuel Ortiza8e74e272009-01-23 13:45:14 -0800424 return 0;
425}
426
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700427static void iwl_bg_beacon_update(struct work_struct *work)
Zhu Yib481de92007-09-25 17:54:57 -0700428{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700429 struct iwl_priv *priv =
430 container_of(work, struct iwl_priv, beacon_update);
Zhu Yib481de92007-09-25 17:54:57 -0700431 struct sk_buff *beacon;
432
Johannes Berg76d04812010-08-23 10:46:47 +0200433 mutex_lock(&priv->mutex);
434 if (!priv->beacon_ctx) {
435 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
436 goto out;
Zhu Yib481de92007-09-25 17:54:57 -0700437 }
438
Johannes Berg60744f62010-08-23 10:46:50 +0200439 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
440 /*
441 * The ucode will send beacon notifications even in
442 * IBSS mode, but we don't want to process them. But
443 * we need to defer the type check to here due to
444 * requiring locking around the beacon_ctx access.
445 */
446 goto out;
447 }
448
Johannes Berg76d04812010-08-23 10:46:47 +0200449 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
450 beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
451 if (!beacon) {
Johannes Berg77834542010-10-04 05:50:36 -0700452 IWL_ERR(priv, "update beacon failed -- keeping old\n");
Johannes Berg76d04812010-08-23 10:46:47 +0200453 goto out;
454 }
455
Zhu Yib481de92007-09-25 17:54:57 -0700456 /* new beacon skb is allocated every time; dispose previous.*/
Johannes Berg77834542010-10-04 05:50:36 -0700457 dev_kfree_skb(priv->beacon_skb);
Zhu Yib481de92007-09-25 17:54:57 -0700458
Johannes Berg12e934d2010-10-04 05:50:06 -0700459 priv->beacon_skb = beacon;
Zhu Yib481de92007-09-25 17:54:57 -0700460
Johannes Berg2295c662010-10-23 09:15:41 -0700461 iwlagn_send_beacon_cmd(priv);
Johannes Berg76d04812010-08-23 10:46:47 +0200462 out:
463 mutex_unlock(&priv->mutex);
Zhu Yib481de92007-09-25 17:54:57 -0700464}
465
Wey-Yi Guyfbba9412010-08-23 07:57:10 -0700466static void iwl_bg_bt_runtime_config(struct work_struct *work)
467{
468 struct iwl_priv *priv =
469 container_of(work, struct iwl_priv, bt_runtime_config);
470
471 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
472 return;
473
474 /* dont send host command if rf-kill is on */
475 if (!iwl_is_ready_rf(priv))
476 return;
477 priv->cfg->ops->hcmd->send_bt_config(priv);
478}
479
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700480static void iwl_bg_bt_full_concurrency(struct work_struct *work)
481{
482 struct iwl_priv *priv =
483 container_of(work, struct iwl_priv, bt_full_concurrency);
Johannes Berg246ed352010-08-23 10:46:32 +0200484 struct iwl_rxon_context *ctx;
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700485
486 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
487 return;
488
489 /* dont send host command if rf-kill is on */
490 if (!iwl_is_ready_rf(priv))
491 return;
492
493 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
494 priv->bt_full_concurrent ?
495 "full concurrency" : "3-wire");
496
497 /*
498 * LQ & RXON updated cmds must be sent before BT Config cmd
499 * to avoid 3-wire collisions
500 */
Johannes Berg246ed352010-08-23 10:46:32 +0200501 mutex_lock(&priv->mutex);
502 for_each_context(priv, ctx) {
503 if (priv->cfg->ops->hcmd->set_rxon_chain)
504 priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
505 iwlcore_commit_rxon(priv, ctx);
506 }
507 mutex_unlock(&priv->mutex);
Wey-Yi Guybee008b2010-08-23 07:57:04 -0700508
509 priv->cfg->ops->hcmd->send_bt_config(priv);
510}
511
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800512/**
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700513 * iwl_bg_statistics_periodic - Timer callback to queue statistics
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800514 *
515 * This callback is provided in order to send a statistics request.
516 *
517 * This timer function is continually reset to execute within
518 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
519 * was received. We need to ensure we receive the statistics in order
520 * to update the temperature used for calibrating the TXPOWER.
521 */
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700522static void iwl_bg_statistics_periodic(unsigned long data)
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800523{
524 struct iwl_priv *priv = (struct iwl_priv *)data;
525
526 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
527 return;
528
Mohamed Abbas61780ee2008-10-29 14:05:49 -0700529 /* dont send host command if rf-kill is on */
530 if (!iwl_is_ready_rf(priv))
531 return;
532
Wey-Yi Guyef8d5522009-11-13 11:56:28 -0800533 iwl_send_statistics_request(priv, CMD_ASYNC, false);
Emmanuel Grumbach4e393172008-06-12 09:46:53 +0800534}
535
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800536
537static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
538 u32 start_idx, u32 num_events,
539 u32 mode)
540{
541 u32 i;
542 u32 ptr; /* SRAM byte address of log data */
543 u32 ev, time, data; /* event log data */
544 unsigned long reg_flags;
545
546 if (mode == 0)
547 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
548 else
549 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
550
551 /* Make sure device is powered up for SRAM reads */
552 spin_lock_irqsave(&priv->reg_lock, reg_flags);
553 if (iwl_grab_nic_access(priv)) {
554 spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
555 return;
556 }
557
558 /* Set starting address; reads will auto-increment */
559 _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
560 rmb();
561
562 /*
563 * "time" is actually "data" for mode 0 (no timestamp).
564 * place event id # at far right for easier visual parsing.
565 */
566 for (i = 0; i < num_events; i++) {
567 ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
568 time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
569 if (mode == 0) {
570 trace_iwlwifi_dev_ucode_cont_event(priv,
571 0, time, ev);
572 } else {
573 data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
574 trace_iwlwifi_dev_ucode_cont_event(priv,
575 time, data, ev);
576 }
577 }
578 /* Allow device to power down */
579 iwl_release_nic_access(priv);
580 spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
581}
582
Johannes Berg875295f2010-01-22 14:22:55 -0800583static void iwl_continuous_event_trace(struct iwl_priv *priv)
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -0800584{
585 u32 capacity; /* event log capacity in # entries */
586 u32 base; /* SRAM byte address of event log header */
587 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
588 u32 num_wraps; /* # times uCode wrapped to top of log */
589 u32 next_entry; /* index of next entry to be written by uCode */
590
591 if (priv->ucode_type == UCODE_INIT)
592 base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
593 else
594 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
595 if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
596 capacity = iwl_read_targ_mem(priv, base);
597 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
598 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
599 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
600 } else
601 return;
602
603 if (num_wraps == priv->event_log.num_wraps) {
604 iwl_print_cont_event_trace(priv,
605 base, priv->event_log.next_entry,
606 next_entry - priv->event_log.next_entry,
607 mode);
608 priv->event_log.non_wraps_count++;
609 } else {
610 if ((num_wraps - priv->event_log.num_wraps) > 1)
611 priv->event_log.wraps_more_count++;
612 else
613 priv->event_log.wraps_once_count++;
614 trace_iwlwifi_dev_ucode_wrap_event(priv,
615 num_wraps - priv->event_log.num_wraps,
616 next_entry, priv->event_log.next_entry);
617 if (next_entry < priv->event_log.next_entry) {
618 iwl_print_cont_event_trace(priv, base,
619 priv->event_log.next_entry,
620 capacity - priv->event_log.next_entry,
621 mode);
622
623 iwl_print_cont_event_trace(priv, base, 0,
624 next_entry, mode);
625 } else {
626 iwl_print_cont_event_trace(priv, base,
627 next_entry, capacity - next_entry,
628 mode);
629
630 iwl_print_cont_event_trace(priv, base, 0,
631 next_entry, mode);
632 }
633 }
634 priv->event_log.num_wraps = num_wraps;
635 priv->event_log.next_entry = next_entry;
636}
637
638/**
639 * iwl_bg_ucode_trace - Timer callback to log ucode event
640 *
641 * The timer is continually set to execute every
642 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
643 * this function is to perform continuous uCode event logging operation
644 * if enabled
645 */
646static void iwl_bg_ucode_trace(unsigned long data)
647{
648 struct iwl_priv *priv = (struct iwl_priv *)data;
649
650 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
651 return;
652
653 if (priv->event_log.ucode_trace) {
654 iwl_continuous_event_trace(priv);
655 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
656 mod_timer(&priv->ucode_trace,
657 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
658 }
659}
660
Wey-Yi Guy65550632010-06-24 13:18:35 -0700661static void iwl_bg_tx_flush(struct work_struct *work)
662{
663 struct iwl_priv *priv =
664 container_of(work, struct iwl_priv, tx_flush);
665
666 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
667 return;
668
669 /* do nothing if rf-kill is on */
670 if (!iwl_is_ready_rf(priv))
671 return;
672
673 if (priv->cfg->ops->lib->txfifo_flush) {
674 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
675 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
676 }
677}
678
Zhu Yib481de92007-09-25 17:54:57 -0700679/**
Tomas Winklera55360e2008-05-05 10:22:28 +0800680 * iwl_rx_handle - Main entry function for receiving responses from uCode
Zhu Yib481de92007-09-25 17:54:57 -0700681 *
682 * Uses the priv->rx_handlers callback function array to invoke
683 * the appropriate handlers, including command responses,
684 * frame-received notifications, and other notifications.
685 */
Johannes Bergf945f102011-01-04 16:21:59 -0800686static void iwl_rx_handle(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700687{
Tomas Winklera55360e2008-05-05 10:22:28 +0800688 struct iwl_rx_mem_buffer *rxb;
Tomas Winklerdb11d632008-05-05 10:22:33 +0800689 struct iwl_rx_packet *pkt;
Tomas Winklera55360e2008-05-05 10:22:28 +0800690 struct iwl_rx_queue *rxq = &priv->rxq;
Zhu Yib481de92007-09-25 17:54:57 -0700691 u32 r, i;
692 int reclaim;
693 unsigned long flags;
Mohamed Abbas5c0eef92007-11-29 11:10:14 +0800694 u8 fill_rx = 0;
Mohamed Abbasd68ab682008-02-07 13:16:33 -0800695 u32 count = 8;
Mohamed Abbas4752c932009-05-22 11:01:51 -0700696 int total_empty;
Zhu Yib481de92007-09-25 17:54:57 -0700697
Cahill, Ben M6440adb2007-11-29 11:09:55 +0800698 /* uCode's read index (stored in shared DRAM) indicates the last Rx
699 * buffer that the driver may process (last buffer filled by ucode). */
Winkler, Tomas8d864222008-11-07 09:58:39 -0800700 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
Zhu Yib481de92007-09-25 17:54:57 -0700701 i = rxq->read;
702
703 /* Rx interrupt, but nothing sent from uCode */
704 if (i == r)
Tomas Winklere1623442009-01-27 14:27:56 -0800705 IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i);
Zhu Yib481de92007-09-25 17:54:57 -0700706
Mohamed Abbas4752c932009-05-22 11:01:51 -0700707 /* calculate total frames need to be restock after handling RX */
Zhu Yi73005152009-10-23 13:42:32 -0700708 total_empty = r - rxq->write_actual;
Mohamed Abbas4752c932009-05-22 11:01:51 -0700709 if (total_empty < 0)
710 total_empty += RX_QUEUE_SIZE;
711
712 if (total_empty > (RX_QUEUE_SIZE / 2))
Mohamed Abbas5c0eef92007-11-29 11:10:14 +0800713 fill_rx = 1;
714
Zhu Yib481de92007-09-25 17:54:57 -0700715 while (i != r) {
Johannes Bergf4989d92010-05-28 04:08:30 -0700716 int len;
717
Zhu Yib481de92007-09-25 17:54:57 -0700718 rxb = rxq->queue[i];
719
Ben Cahill9fbab512007-11-29 11:09:47 +0800720 /* If an RXB doesn't have a Rx queue slot associated with it,
Zhu Yib481de92007-09-25 17:54:57 -0700721 * then a bug has been introduced in the queue refilling
722 * routines -- catch it here */
723 BUG_ON(rxb == NULL);
724
725 rxq->queue[i] = NULL;
726
Zhu Yi2f301222009-10-09 17:19:45 +0800727 pci_unmap_page(priv->pci_dev, rxb->page_dma,
728 PAGE_SIZE << priv->hw_params.rx_page_order,
729 PCI_DMA_FROMDEVICE);
730 pkt = rxb_addr(rxb);
Zhu Yib481de92007-09-25 17:54:57 -0700731
Johannes Bergf4989d92010-05-28 04:08:30 -0700732 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
733 len += sizeof(u32); /* account for status word */
734 trace_iwlwifi_dev_rx(priv, pkt, len);
Johannes Bergbe1a71a2009-10-02 13:44:02 -0700735
Zhu Yib481de92007-09-25 17:54:57 -0700736 /* Reclaim a command buffer only if this packet is a response
737 * to a (driver-originated) command.
738 * If the packet (e.g. Rx frame) originated from uCode,
739 * there is no command buffer to reclaim.
740 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
741 * but apparently a few don't get set; catch them here. */
742 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
743 (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
Tomas Winkler857485c2008-03-21 13:53:44 -0700744 (pkt->hdr.cmd != REPLY_RX) &&
Daniel Halperin7dddaf12008-10-23 23:48:58 -0700745 (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) &&
Zhu Yicfe01702007-09-27 11:27:31 +0800746 (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
Zhu Yib481de92007-09-25 17:54:57 -0700747 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
748 (pkt->hdr.cmd != REPLY_TX);
749
Johannes Berg7194207c2011-01-04 16:22:00 -0800750 /*
751 * Do the notification wait before RX handlers so
752 * even if the RX handler consumes the RXB we have
753 * access to it in the notification wait entry.
754 */
755 if (!list_empty(&priv->_agn.notif_waits)) {
756 struct iwl_notification_wait *w;
757
758 spin_lock(&priv->_agn.notif_wait_lock);
759 list_for_each_entry(w, &priv->_agn.notif_waits, list) {
760 if (w->cmd == pkt->hdr.cmd) {
761 w->triggered = true;
762 if (w->fn)
763 w->fn(priv, pkt);
764 }
765 }
766 spin_unlock(&priv->_agn.notif_wait_lock);
767
768 wake_up_all(&priv->_agn.notif_waitq);
769 }
770
Zhu Yib481de92007-09-25 17:54:57 -0700771 /* Based on type of command response or notification,
772 * handle those that need handling via function in
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700773 * rx_handlers table. See iwl_setup_rx_handlers() */
Zhu Yib481de92007-09-25 17:54:57 -0700774 if (priv->rx_handlers[pkt->hdr.cmd]) {
Tomas Winklere1623442009-01-27 14:27:56 -0800775 IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r,
Ester Kummerf3d67992008-05-06 11:05:12 +0800776 i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700777 priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
Zhu Yi29b1b262009-10-23 13:42:25 -0700778 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
Zhu Yib481de92007-09-25 17:54:57 -0700779 } else {
780 /* No handling needed */
Tomas Winklere1623442009-01-27 14:27:56 -0800781 IWL_DEBUG_RX(priv,
Zhu Yib481de92007-09-25 17:54:57 -0700782 "r %d i %d No handler needed for %s, 0x%02x\n",
783 r, i, get_cmd_string(pkt->hdr.cmd),
784 pkt->hdr.cmd);
785 }
786
Zhu Yi29b1b262009-10-23 13:42:25 -0700787 /*
788 * XXX: After here, we should always check rxb->page
789 * against NULL before touching it or its virtual
790 * memory (pkt). Because some rx_handler might have
791 * already taken or freed the pages.
792 */
793
Zhu Yib481de92007-09-25 17:54:57 -0700794 if (reclaim) {
Zhu Yi2f301222009-10-09 17:19:45 +0800795 /* Invoke any callbacks, transfer the buffer to caller,
796 * and fire off the (possibly) blocking iwl_send_cmd()
Zhu Yib481de92007-09-25 17:54:57 -0700797 * as we reclaim the driver command queue */
Zhu Yi29b1b262009-10-23 13:42:25 -0700798 if (rxb->page)
Tomas Winkler17b88922008-05-29 16:35:12 +0800799 iwl_tx_cmd_complete(priv, rxb);
Zhu Yib481de92007-09-25 17:54:57 -0700800 else
Winkler, Tomas39aadf82008-12-19 10:37:32 +0800801 IWL_WARN(priv, "Claim null rxb?\n");
Zhu Yib481de92007-09-25 17:54:57 -0700802 }
803
Zhu Yi73005152009-10-23 13:42:32 -0700804 /* Reuse the page if possible. For notification packets and
805 * SKBs that fail to Rx correctly, add them back into the
806 * rx_free list for reuse later. */
Zhu Yib481de92007-09-25 17:54:57 -0700807 spin_lock_irqsave(&rxq->lock, flags);
Zhu Yi73005152009-10-23 13:42:32 -0700808 if (rxb->page != NULL) {
809 rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page,
810 0, PAGE_SIZE << priv->hw_params.rx_page_order,
811 PCI_DMA_FROMDEVICE);
812 list_add_tail(&rxb->list, &rxq->rx_free);
813 rxq->free_count++;
814 } else
815 list_add_tail(&rxb->list, &rxq->rx_used);
816
Zhu Yib481de92007-09-25 17:54:57 -0700817 spin_unlock_irqrestore(&rxq->lock, flags);
Zhu Yi73005152009-10-23 13:42:32 -0700818
Zhu Yib481de92007-09-25 17:54:57 -0700819 i = (i + 1) & RX_QUEUE_MASK;
Mohamed Abbas5c0eef92007-11-29 11:10:14 +0800820 /* If there are a lot of unused frames,
821 * restock the Rx queue so ucode wont assert. */
822 if (fill_rx) {
823 count++;
824 if (count >= 8) {
Zhu Yi73005152009-10-23 13:42:32 -0700825 rxq->read = i;
Wey-Yi Guy54b81552010-03-17 13:34:35 -0700826 iwlagn_rx_replenish_now(priv);
Mohamed Abbas5c0eef92007-11-29 11:10:14 +0800827 count = 0;
828 }
829 }
Zhu Yib481de92007-09-25 17:54:57 -0700830 }
831
832 /* Backtrack one entry */
Zhu Yi73005152009-10-23 13:42:32 -0700833 rxq->read = i;
Mohamed Abbas4752c932009-05-22 11:01:51 -0700834 if (fill_rx)
Wey-Yi Guy54b81552010-03-17 13:34:35 -0700835 iwlagn_rx_replenish_now(priv);
Mohamed Abbas4752c932009-05-22 11:01:51 -0700836 else
Wey-Yi Guy54b81552010-03-17 13:34:35 -0700837 iwlagn_rx_queue_restock(priv);
Tomas Winklera55360e2008-05-05 10:22:28 +0800838}
Tomas Winklera55360e2008-05-05 10:22:28 +0800839
Mohamed Abbas0359fac2008-03-28 16:21:08 -0700840/* call this function to flush any scheduled tasklet */
841static inline void iwl_synchronize_irq(struct iwl_priv *priv)
842{
Tomas Winklera96a27f2008-10-23 23:48:56 -0700843 /* wait to make sure we flush pending tasklet*/
Mohamed Abbas0359fac2008-03-28 16:21:08 -0700844 synchronize_irq(priv->pci_dev->irq);
845 tasklet_kill(&priv->irq_tasklet);
846}
847
Mohamed Abbasef850d72009-05-22 11:01:50 -0700848static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -0700849{
850 u32 inta, handled = 0;
851 u32 inta_fh;
852 unsigned long flags;
Ben Cahillc2e61da2009-10-30 14:36:09 -0700853 u32 i;
Tomas Winkler0a6857e2008-03-12 16:58:49 -0700854#ifdef CONFIG_IWLWIFI_DEBUG
Zhu Yib481de92007-09-25 17:54:57 -0700855 u32 inta_mask;
856#endif
857
858 spin_lock_irqsave(&priv->lock, flags);
859
860 /* Ack/clear/reset pending uCode interrupts.
861 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
862 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
Tomas Winkler3395f6e2008-03-25 16:33:37 -0700863 inta = iwl_read32(priv, CSR_INT);
864 iwl_write32(priv, CSR_INT, inta);
Zhu Yib481de92007-09-25 17:54:57 -0700865
866 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
867 * Any new interrupts that happen after this, either while we're
868 * in this tasklet, or later, will show up in next ISR/tasklet. */
Tomas Winkler3395f6e2008-03-25 16:33:37 -0700869 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
870 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
Zhu Yib481de92007-09-25 17:54:57 -0700871
Tomas Winkler0a6857e2008-03-12 16:58:49 -0700872#ifdef CONFIG_IWLWIFI_DEBUG
Reinette Chatre3d816c72009-08-07 15:41:37 -0700873 if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
Ben Cahill9fbab512007-11-29 11:09:47 +0800874 /* just for debug */
Tomas Winkler3395f6e2008-03-25 16:33:37 -0700875 inta_mask = iwl_read32(priv, CSR_INT_MASK);
Tomas Winklere1623442009-01-27 14:27:56 -0800876 IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
Zhu Yib481de92007-09-25 17:54:57 -0700877 inta, inta_mask, inta_fh);
878 }
879#endif
880
Zhu Yi2f301222009-10-09 17:19:45 +0800881 spin_unlock_irqrestore(&priv->lock, flags);
882
Zhu Yib481de92007-09-25 17:54:57 -0700883 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
884 * atomic, make sure that inta covers all the interrupts that
885 * we've discovered, even if FH interrupt came in just after
886 * reading CSR_INT. */
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800887 if (inta_fh & CSR49_FH_INT_RX_MASK)
Zhu Yib481de92007-09-25 17:54:57 -0700888 inta |= CSR_INT_BIT_FH_RX;
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800889 if (inta_fh & CSR49_FH_INT_TX_MASK)
Zhu Yib481de92007-09-25 17:54:57 -0700890 inta |= CSR_INT_BIT_FH_TX;
891
892 /* Now service all interrupt bits discovered above. */
893 if (inta & CSR_INT_BIT_HW_ERR) {
Reinette Chatre58dba722009-07-17 09:30:25 -0700894 IWL_ERR(priv, "Hardware error detected. Restarting.\n");
Zhu Yib481de92007-09-25 17:54:57 -0700895
896 /* Tell the device to stop sending interrupts */
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700897 iwl_disable_interrupts(priv);
Zhu Yib481de92007-09-25 17:54:57 -0700898
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700899 priv->isr_stats.hw++;
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700900 iwl_irq_handle_error(priv);
Zhu Yib481de92007-09-25 17:54:57 -0700901
902 handled |= CSR_INT_BIT_HW_ERR;
903
Zhu Yib481de92007-09-25 17:54:57 -0700904 return;
905 }
906
Tomas Winkler0a6857e2008-03-12 16:58:49 -0700907#ifdef CONFIG_IWLWIFI_DEBUG
Reinette Chatre3d816c72009-08-07 15:41:37 -0700908 if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
Zhu Yib481de92007-09-25 17:54:57 -0700909 /* NIC fires this, but we don't use it, redundant with WAKEUP */
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700910 if (inta & CSR_INT_BIT_SCD) {
Tomas Winklere1623442009-01-27 14:27:56 -0800911 IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
Joonwoo Park25c03d82008-01-23 10:15:20 -0800912 "the frame/frames.\n");
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700913 priv->isr_stats.sch++;
914 }
Zhu Yib481de92007-09-25 17:54:57 -0700915
916 /* Alive notification via Rx interrupt will do the real work */
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700917 if (inta & CSR_INT_BIT_ALIVE) {
Tomas Winklere1623442009-01-27 14:27:56 -0800918 IWL_DEBUG_ISR(priv, "Alive interrupt\n");
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700919 priv->isr_stats.alive++;
920 }
Zhu Yib481de92007-09-25 17:54:57 -0700921 }
922#endif
923 /* Safely ignore these bits for debug checks below */
Joonwoo Park25c03d82008-01-23 10:15:20 -0800924 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
Zhu Yib481de92007-09-25 17:54:57 -0700925
Ben Cahill9fbab512007-11-29 11:09:47 +0800926 /* HW RF KILL switch toggled */
Zhu Yib481de92007-09-25 17:54:57 -0700927 if (inta & CSR_INT_BIT_RF_KILL) {
928 int hw_rf_kill = 0;
Tomas Winkler3395f6e2008-03-25 16:33:37 -0700929 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
Zhu Yib481de92007-09-25 17:54:57 -0700930 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
931 hw_rf_kill = 1;
932
Reinette Chatre4c423a22009-07-17 09:30:26 -0700933 IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
Abhijeet Kolekarc3056062008-11-12 13:14:08 -0800934 hw_rf_kill ? "disable radio" : "enable radio");
Zhu Yib481de92007-09-25 17:54:57 -0700935
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700936 priv->isr_stats.rfkill++;
937
Emmanuel Grumbacha9efa652008-06-30 17:23:25 +0800938 /* driver only loads ucode once setting the interface up.
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +0100939 * the driver allows loading the ucode even if the radio
940 * is killed. Hence update the killswitch state here. The
941 * rfkill handler will care about restarting if needed.
Emmanuel Grumbacha9efa652008-06-30 17:23:25 +0800942 */
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +0100943 if (!test_bit(STATUS_ALIVE, &priv->status)) {
944 if (hw_rf_kill)
945 set_bit(STATUS_RF_KILL_HW, &priv->status);
946 else
947 clear_bit(STATUS_RF_KILL_HW, &priv->status);
Johannes Berga60e77e2009-06-04 18:26:06 +0200948 wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill);
Mohamed Abbasedb34222008-12-11 10:33:37 -0800949 }
Zhu Yib481de92007-09-25 17:54:57 -0700950
951 handled |= CSR_INT_BIT_RF_KILL;
952 }
953
Ben Cahill9fbab512007-11-29 11:09:47 +0800954 /* Chip got too hot and stopped itself */
Zhu Yib481de92007-09-25 17:54:57 -0700955 if (inta & CSR_INT_BIT_CT_KILL) {
Winkler, Tomas15b16872008-12-19 10:37:33 +0800956 IWL_ERR(priv, "Microcode CT kill error detected.\n");
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700957 priv->isr_stats.ctkill++;
Zhu Yib481de92007-09-25 17:54:57 -0700958 handled |= CSR_INT_BIT_CT_KILL;
959 }
960
961 /* Error detected by uCode */
962 if (inta & CSR_INT_BIT_SW_ERR) {
Winkler, Tomas15b16872008-12-19 10:37:33 +0800963 IWL_ERR(priv, "Microcode SW error detected. "
964 " Restarting 0x%X.\n", inta);
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700965 priv->isr_stats.sw++;
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700966 iwl_irq_handle_error(priv);
Zhu Yib481de92007-09-25 17:54:57 -0700967 handled |= CSR_INT_BIT_SW_ERR;
968 }
969
Ben Cahillc2e61da2009-10-30 14:36:09 -0700970 /*
971 * uCode wakes up after power-down sleep.
972 * Tell device about any new tx or host commands enqueued,
973 * and about any Rx buffers made available while asleep.
974 */
Zhu Yib481de92007-09-25 17:54:57 -0700975 if (inta & CSR_INT_BIT_WAKEUP) {
Tomas Winklere1623442009-01-27 14:27:56 -0800976 IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
Tomas Winklera55360e2008-05-05 10:22:28 +0800977 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
Ben Cahillc2e61da2009-10-30 14:36:09 -0700978 for (i = 0; i < priv->hw_params.max_txq_num; i++)
979 iwl_txq_update_write_ptr(priv, &priv->txq[i]);
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700980 priv->isr_stats.wakeup++;
Zhu Yib481de92007-09-25 17:54:57 -0700981 handled |= CSR_INT_BIT_WAKEUP;
982 }
983
984 /* All uCode command responses, including Tx command responses,
985 * Rx "responses" (frame-received notification), and other
986 * notifications from uCode come through here*/
987 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
Tomas Winklera55360e2008-05-05 10:22:28 +0800988 iwl_rx_handle(priv);
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700989 priv->isr_stats.rx++;
Zhu Yib481de92007-09-25 17:54:57 -0700990 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
991 }
992
Ben Cahillc72cd192009-10-30 14:36:08 -0700993 /* This "Tx" DMA channel is used only for loading uCode */
Zhu Yib481de92007-09-25 17:54:57 -0700994 if (inta & CSR_INT_BIT_FH_TX) {
Ben Cahillc72cd192009-10-30 14:36:08 -0700995 IWL_DEBUG_ISR(priv, "uCode load interrupt\n");
Wey-Yi Guya83b9142009-04-08 11:39:32 -0700996 priv->isr_stats.tx++;
Zhu Yib481de92007-09-25 17:54:57 -0700997 handled |= CSR_INT_BIT_FH_TX;
Ben Cahillc72cd192009-10-30 14:36:08 -0700998 /* Wake up uCode load routine, now that load is complete */
Ron Rindjunskydbb983b2008-05-15 13:54:12 +0800999 priv->ucode_write_complete = 1;
1000 wake_up_interruptible(&priv->wait_command_queue);
Zhu Yib481de92007-09-25 17:54:57 -07001001 }
1002
Wey-Yi Guya83b9142009-04-08 11:39:32 -07001003 if (inta & ~handled) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08001004 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
Wey-Yi Guya83b9142009-04-08 11:39:32 -07001005 priv->isr_stats.unhandled++;
1006 }
Zhu Yib481de92007-09-25 17:54:57 -07001007
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001008 if (inta & ~(priv->inta_mask)) {
Winkler, Tomas39aadf82008-12-19 10:37:32 +08001009 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001010 inta & ~priv->inta_mask);
Winkler, Tomas39aadf82008-12-19 10:37:32 +08001011 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
Zhu Yib481de92007-09-25 17:54:57 -07001012 }
1013
1014 /* Re-enable all interrupts */
Justin P. Mattock62e45c12010-12-30 15:07:56 -08001015 /* only Re-enable if disabled by irq */
Mohamed Abbas0359fac2008-03-28 16:21:08 -07001016 if (test_bit(STATUS_INT_ENABLED, &priv->status))
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07001017 iwl_enable_interrupts(priv);
Don Fry3dd823e2011-02-06 09:29:45 -08001018 /* Re-enable RF_KILL if it occurred */
1019 else if (handled & CSR_INT_BIT_RF_KILL)
1020 iwl_enable_rfkill_int(priv);
Zhu Yib481de92007-09-25 17:54:57 -07001021
Tomas Winkler0a6857e2008-03-12 16:58:49 -07001022#ifdef CONFIG_IWLWIFI_DEBUG
Reinette Chatre3d816c72009-08-07 15:41:37 -07001023 if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
Tomas Winkler3395f6e2008-03-25 16:33:37 -07001024 inta = iwl_read32(priv, CSR_INT);
1025 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1026 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
Tomas Winklere1623442009-01-27 14:27:56 -08001027 IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
Zhu Yib481de92007-09-25 17:54:57 -07001028 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
1029 }
1030#endif
Zhu Yib481de92007-09-25 17:54:57 -07001031}
1032
Mohamed Abbasef850d72009-05-22 11:01:50 -07001033/* tasklet for iwlagn interrupt */
1034static void iwl_irq_tasklet(struct iwl_priv *priv)
1035{
1036 u32 inta = 0;
1037 u32 handled = 0;
1038 unsigned long flags;
Ben Cahill87569902009-11-06 14:53:01 -08001039 u32 i;
Mohamed Abbasef850d72009-05-22 11:01:50 -07001040#ifdef CONFIG_IWLWIFI_DEBUG
1041 u32 inta_mask;
1042#endif
1043
1044 spin_lock_irqsave(&priv->lock, flags);
1045
1046 /* Ack/clear/reset pending uCode interrupts.
1047 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1048 */
Shanyu Zhao48a6be62010-03-16 10:22:26 -07001049 /* There is a hardware bug in the interrupt mask function that some
1050 * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
1051 * they are disabled in the CSR_INT_MASK register. Furthermore the
1052 * ICT interrupt handling mechanism has another bug that might cause
1053 * these unmasked interrupts fail to be detected. We workaround the
1054 * hardware bugs here by ACKing all the possible interrupts so that
1055 * interrupt coalescing can still be achieved.
1056 */
David S. Miller4a35ecf2010-04-06 23:53:30 -07001057 iwl_write32(priv, CSR_INT, priv->_agn.inta | ~priv->inta_mask);
Mohamed Abbasef850d72009-05-22 11:01:50 -07001058
Johannes Berga4c8b2a2010-01-21 06:25:54 -08001059 inta = priv->_agn.inta;
Mohamed Abbasef850d72009-05-22 11:01:50 -07001060
1061#ifdef CONFIG_IWLWIFI_DEBUG
Reinette Chatre3d816c72009-08-07 15:41:37 -07001062 if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
Mohamed Abbasef850d72009-05-22 11:01:50 -07001063 /* just for debug */
1064 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1065 IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ",
1066 inta, inta_mask);
1067 }
1068#endif
Zhu Yi2f301222009-10-09 17:19:45 +08001069
1070 spin_unlock_irqrestore(&priv->lock, flags);
1071
Johannes Berga4c8b2a2010-01-21 06:25:54 -08001072 /* saved interrupt in inta variable now we can reset priv->_agn.inta */
1073 priv->_agn.inta = 0;
Mohamed Abbasef850d72009-05-22 11:01:50 -07001074
1075 /* Now service all interrupt bits discovered above. */
1076 if (inta & CSR_INT_BIT_HW_ERR) {
Reinette Chatre58dba722009-07-17 09:30:25 -07001077 IWL_ERR(priv, "Hardware error detected. Restarting.\n");
Mohamed Abbasef850d72009-05-22 11:01:50 -07001078
1079 /* Tell the device to stop sending interrupts */
1080 iwl_disable_interrupts(priv);
1081
1082 priv->isr_stats.hw++;
1083 iwl_irq_handle_error(priv);
1084
1085 handled |= CSR_INT_BIT_HW_ERR;
1086
Mohamed Abbasef850d72009-05-22 11:01:50 -07001087 return;
1088 }
1089
1090#ifdef CONFIG_IWLWIFI_DEBUG
Reinette Chatre3d816c72009-08-07 15:41:37 -07001091 if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
Mohamed Abbasef850d72009-05-22 11:01:50 -07001092 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1093 if (inta & CSR_INT_BIT_SCD) {
1094 IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
1095 "the frame/frames.\n");
1096 priv->isr_stats.sch++;
1097 }
1098
1099 /* Alive notification via Rx interrupt will do the real work */
1100 if (inta & CSR_INT_BIT_ALIVE) {
1101 IWL_DEBUG_ISR(priv, "Alive interrupt\n");
1102 priv->isr_stats.alive++;
1103 }
1104 }
1105#endif
1106 /* Safely ignore these bits for debug checks below */
1107 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1108
1109 /* HW RF KILL switch toggled */
1110 if (inta & CSR_INT_BIT_RF_KILL) {
1111 int hw_rf_kill = 0;
1112 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
1113 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
1114 hw_rf_kill = 1;
1115
Reinette Chatre4c423a22009-07-17 09:30:26 -07001116 IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
Mohamed Abbasef850d72009-05-22 11:01:50 -07001117 hw_rf_kill ? "disable radio" : "enable radio");
1118
1119 priv->isr_stats.rfkill++;
1120
1121 /* driver only loads ucode once setting the interface up.
1122 * the driver allows loading the ucode even if the radio
1123 * is killed. Hence update the killswitch state here. The
1124 * rfkill handler will care about restarting if needed.
1125 */
1126 if (!test_bit(STATUS_ALIVE, &priv->status)) {
1127 if (hw_rf_kill)
1128 set_bit(STATUS_RF_KILL_HW, &priv->status);
1129 else
1130 clear_bit(STATUS_RF_KILL_HW, &priv->status);
Johannes Berga60e77e2009-06-04 18:26:06 +02001131 wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill);
Mohamed Abbasef850d72009-05-22 11:01:50 -07001132 }
1133
1134 handled |= CSR_INT_BIT_RF_KILL;
1135 }
1136
1137 /* Chip got too hot and stopped itself */
1138 if (inta & CSR_INT_BIT_CT_KILL) {
1139 IWL_ERR(priv, "Microcode CT kill error detected.\n");
1140 priv->isr_stats.ctkill++;
1141 handled |= CSR_INT_BIT_CT_KILL;
1142 }
1143
1144 /* Error detected by uCode */
1145 if (inta & CSR_INT_BIT_SW_ERR) {
1146 IWL_ERR(priv, "Microcode SW error detected. "
1147 " Restarting 0x%X.\n", inta);
1148 priv->isr_stats.sw++;
Mohamed Abbasef850d72009-05-22 11:01:50 -07001149 iwl_irq_handle_error(priv);
1150 handled |= CSR_INT_BIT_SW_ERR;
1151 }
1152
1153 /* uCode wakes up after power-down sleep */
1154 if (inta & CSR_INT_BIT_WAKEUP) {
1155 IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
1156 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
Ben Cahill87569902009-11-06 14:53:01 -08001157 for (i = 0; i < priv->hw_params.max_txq_num; i++)
1158 iwl_txq_update_write_ptr(priv, &priv->txq[i]);
Mohamed Abbasef850d72009-05-22 11:01:50 -07001159
1160 priv->isr_stats.wakeup++;
1161
1162 handled |= CSR_INT_BIT_WAKEUP;
1163 }
1164
1165 /* All uCode command responses, including Tx command responses,
1166 * Rx "responses" (frame-received notification), and other
1167 * notifications from uCode come through here*/
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001168 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX |
1169 CSR_INT_BIT_RX_PERIODIC)) {
Mohamed Abbasef850d72009-05-22 11:01:50 -07001170 IWL_DEBUG_ISR(priv, "Rx interrupt\n");
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001171 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1172 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1173 iwl_write32(priv, CSR_FH_INT_STATUS,
1174 CSR49_FH_INT_RX_MASK);
1175 }
1176 if (inta & CSR_INT_BIT_RX_PERIODIC) {
1177 handled |= CSR_INT_BIT_RX_PERIODIC;
1178 iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC);
1179 }
1180 /* Sending RX interrupt require many steps to be done in the
1181 * the device:
1182 * 1- write interrupt to current index in ICT table.
1183 * 2- dma RX frame.
1184 * 3- update RX shared data to indicate last write index.
1185 * 4- send interrupt.
1186 * This could lead to RX race, driver could receive RX interrupt
Ben Cahill74ba67e2009-11-20 12:04:53 -08001187 * but the shared data changes does not reflect this;
1188 * periodic interrupt will detect any dangling Rx activity.
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001189 */
Ben Cahill74ba67e2009-11-20 12:04:53 -08001190
1191 /* Disable periodic interrupt; we use it as just a one-shot. */
1192 iwl_write8(priv, CSR_INT_PERIODIC_REG,
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001193 CSR_INT_PERIODIC_DIS);
Mohamed Abbasef850d72009-05-22 11:01:50 -07001194 iwl_rx_handle(priv);
Ben Cahill74ba67e2009-11-20 12:04:53 -08001195
1196 /*
1197 * Enable periodic interrupt in 8 msec only if we received
1198 * real RX interrupt (instead of just periodic int), to catch
1199 * any dangling Rx interrupt. If it was just the periodic
1200 * interrupt, there was no dangling Rx activity, and no need
1201 * to extend the periodic interrupt; one-shot is enough.
1202 */
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001203 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX))
Ben Cahill74ba67e2009-11-20 12:04:53 -08001204 iwl_write8(priv, CSR_INT_PERIODIC_REG,
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001205 CSR_INT_PERIODIC_ENA);
1206
Mohamed Abbasef850d72009-05-22 11:01:50 -07001207 priv->isr_stats.rx++;
Mohamed Abbasef850d72009-05-22 11:01:50 -07001208 }
1209
Ben Cahillc72cd192009-10-30 14:36:08 -07001210 /* This "Tx" DMA channel is used only for loading uCode */
Mohamed Abbasef850d72009-05-22 11:01:50 -07001211 if (inta & CSR_INT_BIT_FH_TX) {
1212 iwl_write32(priv, CSR_FH_INT_STATUS, CSR49_FH_INT_TX_MASK);
Ben Cahillc72cd192009-10-30 14:36:08 -07001213 IWL_DEBUG_ISR(priv, "uCode load interrupt\n");
Mohamed Abbasef850d72009-05-22 11:01:50 -07001214 priv->isr_stats.tx++;
1215 handled |= CSR_INT_BIT_FH_TX;
Ben Cahillc72cd192009-10-30 14:36:08 -07001216 /* Wake up uCode load routine, now that load is complete */
Mohamed Abbasef850d72009-05-22 11:01:50 -07001217 priv->ucode_write_complete = 1;
1218 wake_up_interruptible(&priv->wait_command_queue);
1219 }
1220
1221 if (inta & ~handled) {
1222 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
1223 priv->isr_stats.unhandled++;
1224 }
1225
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001226 if (inta & ~(priv->inta_mask)) {
Mohamed Abbasef850d72009-05-22 11:01:50 -07001227 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
Mohamed Abbas40cefda2009-05-22 11:01:52 -07001228 inta & ~priv->inta_mask);
Mohamed Abbasef850d72009-05-22 11:01:50 -07001229 }
1230
Mohamed Abbasef850d72009-05-22 11:01:50 -07001231 /* Re-enable all interrupts */
Justin P. Mattock62e45c12010-12-30 15:07:56 -08001232 /* only Re-enable if disabled by irq */
Mohamed Abbasef850d72009-05-22 11:01:50 -07001233 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1234 iwl_enable_interrupts(priv);
Don Fry3dd823e2011-02-06 09:29:45 -08001235 /* Re-enable RF_KILL if it occurred */
1236 else if (handled & CSR_INT_BIT_RF_KILL)
1237 iwl_enable_rfkill_int(priv);
Mohamed Abbasef850d72009-05-22 11:01:50 -07001238}
1239
Emmanuel Grumbach7d476182010-05-23 00:14:08 -07001240/*****************************************************************************
1241 *
1242 * sysfs attributes
1243 *
1244 *****************************************************************************/
1245
1246#ifdef CONFIG_IWLWIFI_DEBUG
1247
1248/*
1249 * The following adds a new attribute to the sysfs representation
1250 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
1251 * used for controlling the debug level.
1252 *
1253 * See the level definitions in iwl for details.
1254 *
1255 * The debug_level being managed using sysfs below is a per device debug
1256 * level that is used instead of the global debug level if it (the per
1257 * device debug level) is set.
1258 */
1259static ssize_t show_debug_level(struct device *d,
1260 struct device_attribute *attr, char *buf)
1261{
1262 struct iwl_priv *priv = dev_get_drvdata(d);
1263 return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
1264}
1265static ssize_t store_debug_level(struct device *d,
1266 struct device_attribute *attr,
1267 const char *buf, size_t count)
1268{
1269 struct iwl_priv *priv = dev_get_drvdata(d);
1270 unsigned long val;
1271 int ret;
1272
1273 ret = strict_strtoul(buf, 0, &val);
1274 if (ret)
1275 IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
1276 else {
1277 priv->debug_level = val;
1278 if (iwl_alloc_traffic_mem(priv))
1279 IWL_ERR(priv,
1280 "Not enough memory to generate traffic log\n");
1281 }
1282 return strnlen(buf, count);
1283}
1284
1285static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1286 show_debug_level, store_debug_level);
1287
1288
1289#endif /* CONFIG_IWLWIFI_DEBUG */
1290
1291
1292static ssize_t show_temperature(struct device *d,
1293 struct device_attribute *attr, char *buf)
1294{
1295 struct iwl_priv *priv = dev_get_drvdata(d);
1296
1297 if (!iwl_is_alive(priv))
1298 return -EAGAIN;
1299
1300 return sprintf(buf, "%d\n", priv->temperature);
1301}
1302
1303static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
1304
1305static ssize_t show_tx_power(struct device *d,
1306 struct device_attribute *attr, char *buf)
1307{
1308 struct iwl_priv *priv = dev_get_drvdata(d);
1309
1310 if (!iwl_is_ready_rf(priv))
1311 return sprintf(buf, "off\n");
1312 else
1313 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
1314}
1315
1316static ssize_t store_tx_power(struct device *d,
1317 struct device_attribute *attr,
1318 const char *buf, size_t count)
1319{
1320 struct iwl_priv *priv = dev_get_drvdata(d);
1321 unsigned long val;
1322 int ret;
1323
1324 ret = strict_strtoul(buf, 10, &val);
1325 if (ret)
1326 IWL_INFO(priv, "%s is not in decimal form.\n", buf);
1327 else {
1328 ret = iwl_set_tx_power(priv, val, false);
1329 if (ret)
1330 IWL_ERR(priv, "failed setting tx power (0x%d).\n",
1331 ret);
1332 else
1333 ret = count;
1334 }
1335 return ret;
1336}
1337
1338static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
1339
Emmanuel Grumbach7d476182010-05-23 00:14:08 -07001340static struct attribute *iwl_sysfs_entries[] = {
1341 &dev_attr_temperature.attr,
1342 &dev_attr_tx_power.attr,
Emmanuel Grumbach7d476182010-05-23 00:14:08 -07001343#ifdef CONFIG_IWLWIFI_DEBUG
1344 &dev_attr_debug_level.attr,
1345#endif
1346 NULL
1347};
1348
1349static struct attribute_group iwl_attribute_group = {
1350 .name = NULL, /* put in device directory */
1351 .attrs = iwl_sysfs_entries,
1352};
1353
Zhu Yib481de92007-09-25 17:54:57 -07001354/******************************************************************************
1355 *
1356 * uCode download functions
1357 *
1358 ******************************************************************************/
1359
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07001360static void iwl_dealloc_ucode_pci(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -07001361{
Tomas Winkler98c92212008-01-14 17:46:20 -08001362 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
1363 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
1364 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1365 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
1366 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1367 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
Zhu Yib481de92007-09-25 17:54:57 -07001368}
1369
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07001370static void iwl_nic_start(struct iwl_priv *priv)
Ron Rindjunskyedcdf8b2008-05-15 13:53:55 +08001371{
1372 /* Remove all resets to allow NIC to operate */
1373 iwl_write32(priv, CSR_RESET, 0);
1374}
1375
Johannes Bergdd7a2502010-04-28 23:33:10 -07001376struct iwlagn_ucode_capabilities {
1377 u32 max_probe_length;
Wey-Yi Guy6a822d02010-07-13 17:13:15 -07001378 u32 standard_phy_calibration_size;
Johannes Bergece9c4e2010-08-23 10:46:49 +02001379 bool pan;
Johannes Bergdd7a2502010-04-28 23:33:10 -07001380};
Ron Rindjunskyedcdf8b2008-05-15 13:53:55 +08001381
Johannes Bergb08dfd02010-01-29 11:54:56 -08001382static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
Johannes Bergdd7a2502010-04-28 23:33:10 -07001383static int iwl_mac_setup_register(struct iwl_priv *priv,
1384 struct iwlagn_ucode_capabilities *capa);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001385
Jay Sternberg39396082010-08-12 10:24:07 -07001386#define UCODE_EXPERIMENTAL_INDEX 100
1387#define UCODE_EXPERIMENTAL_TAG "exp"
1388
Johannes Bergb08dfd02010-01-29 11:54:56 -08001389static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
Zhu Yib481de92007-09-25 17:54:57 -07001390{
Reinette Chatrea0987a82008-12-02 12:14:06 -08001391 const char *name_pre = priv->cfg->fw_name_pre;
Jay Sternberg39396082010-08-12 10:24:07 -07001392 char tag[8];
Johannes Bergb08dfd02010-01-29 11:54:56 -08001393
Jay Sternberg39396082010-08-12 10:24:07 -07001394 if (first) {
1395#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
1396 priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
1397 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
1398 } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
1399#endif
Johannes Bergb08dfd02010-01-29 11:54:56 -08001400 priv->fw_index = priv->cfg->ucode_api_max;
Jay Sternberg39396082010-08-12 10:24:07 -07001401 sprintf(tag, "%d", priv->fw_index);
1402 } else {
Johannes Bergb08dfd02010-01-29 11:54:56 -08001403 priv->fw_index--;
Jay Sternberg39396082010-08-12 10:24:07 -07001404 sprintf(tag, "%d", priv->fw_index);
1405 }
Johannes Bergb08dfd02010-01-29 11:54:56 -08001406
1407 if (priv->fw_index < priv->cfg->ucode_api_min) {
1408 IWL_ERR(priv, "no suitable firmware found!\n");
1409 return -ENOENT;
1410 }
1411
Jay Sternberg39396082010-08-12 10:24:07 -07001412 sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
Johannes Bergb08dfd02010-01-29 11:54:56 -08001413
Jay Sternberg39396082010-08-12 10:24:07 -07001414 IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
1415 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
1416 ? "EXPERIMENTAL " : "",
Johannes Bergb08dfd02010-01-29 11:54:56 -08001417 priv->firmware_name);
1418
1419 return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
1420 &priv->pci_dev->dev, GFP_KERNEL, priv,
1421 iwl_ucode_callback);
1422}
1423
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001424struct iwlagn_firmware_pieces {
1425 const void *inst, *data, *init, *init_data, *boot;
1426 size_t inst_size, data_size, init_size, init_data_size, boot_size;
1427
1428 u32 build;
Johannes Bergb2e640d2010-05-05 23:24:54 -07001429
1430 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1431 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001432};
1433
1434static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
1435 const struct firmware *ucode_raw,
1436 struct iwlagn_firmware_pieces *pieces)
1437{
1438 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
1439 u32 api_ver, hdr_size;
1440 const u8 *src;
1441
1442 priv->ucode_ver = le32_to_cpu(ucode->ver);
1443 api_ver = IWL_UCODE_API(priv->ucode_ver);
1444
1445 switch (api_ver) {
1446 default:
1447 /*
1448 * 4965 doesn't revision the firmware file format
1449 * along with the API version, it always uses v1
1450 * file format.
1451 */
1452 if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) !=
1453 CSR_HW_REV_TYPE_4965) {
1454 hdr_size = 28;
1455 if (ucode_raw->size < hdr_size) {
1456 IWL_ERR(priv, "File size too small!\n");
1457 return -EINVAL;
1458 }
1459 pieces->build = le32_to_cpu(ucode->u.v2.build);
1460 pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
1461 pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
1462 pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
1463 pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
1464 pieces->boot_size = le32_to_cpu(ucode->u.v2.boot_size);
1465 src = ucode->u.v2.data;
1466 break;
1467 }
1468 /* fall through for 4965 */
1469 case 0:
1470 case 1:
1471 case 2:
1472 hdr_size = 24;
1473 if (ucode_raw->size < hdr_size) {
1474 IWL_ERR(priv, "File size too small!\n");
1475 return -EINVAL;
1476 }
1477 pieces->build = 0;
1478 pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
1479 pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
1480 pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
1481 pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
1482 pieces->boot_size = le32_to_cpu(ucode->u.v1.boot_size);
1483 src = ucode->u.v1.data;
1484 break;
1485 }
1486
1487 /* Verify size of file vs. image size info in file's header */
1488 if (ucode_raw->size != hdr_size + pieces->inst_size +
1489 pieces->data_size + pieces->init_size +
1490 pieces->init_data_size + pieces->boot_size) {
1491
1492 IWL_ERR(priv,
1493 "uCode file size %d does not match expected size\n",
1494 (int)ucode_raw->size);
1495 return -EINVAL;
1496 }
1497
1498 pieces->inst = src;
1499 src += pieces->inst_size;
1500 pieces->data = src;
1501 src += pieces->data_size;
1502 pieces->init = src;
1503 src += pieces->init_size;
1504 pieces->init_data = src;
1505 src += pieces->init_data_size;
1506 pieces->boot = src;
1507 src += pieces->boot_size;
1508
1509 return 0;
1510}
1511
Johannes Bergdd7a2502010-04-28 23:33:10 -07001512static int iwlagn_wanted_ucode_alternative = 1;
1513
1514static int iwlagn_load_firmware(struct iwl_priv *priv,
1515 const struct firmware *ucode_raw,
1516 struct iwlagn_firmware_pieces *pieces,
1517 struct iwlagn_ucode_capabilities *capa)
1518{
1519 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
1520 struct iwl_ucode_tlv *tlv;
1521 size_t len = ucode_raw->size;
1522 const u8 *data;
1523 int wanted_alternative = iwlagn_wanted_ucode_alternative, tmp;
1524 u64 alternatives;
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001525 u32 tlv_len;
1526 enum iwl_ucode_tlv_type tlv_type;
1527 const u8 *tlv_data;
Johannes Bergdd7a2502010-04-28 23:33:10 -07001528
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001529 if (len < sizeof(*ucode)) {
1530 IWL_ERR(priv, "uCode has invalid length: %zd\n", len);
Johannes Bergdd7a2502010-04-28 23:33:10 -07001531 return -EINVAL;
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001532 }
Johannes Bergdd7a2502010-04-28 23:33:10 -07001533
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001534 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
1535 IWL_ERR(priv, "invalid uCode magic: 0X%x\n",
1536 le32_to_cpu(ucode->magic));
Johannes Bergdd7a2502010-04-28 23:33:10 -07001537 return -EINVAL;
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001538 }
Johannes Bergdd7a2502010-04-28 23:33:10 -07001539
1540 /*
1541 * Check which alternatives are present, and "downgrade"
1542 * when the chosen alternative is not present, warning
1543 * the user when that happens. Some files may not have
1544 * any alternatives, so don't warn in that case.
1545 */
1546 alternatives = le64_to_cpu(ucode->alternatives);
1547 tmp = wanted_alternative;
1548 if (wanted_alternative > 63)
1549 wanted_alternative = 63;
1550 while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
1551 wanted_alternative--;
1552 if (wanted_alternative && wanted_alternative != tmp)
1553 IWL_WARN(priv,
1554 "uCode alternative %d not available, choosing %d\n",
1555 tmp, wanted_alternative);
1556
1557 priv->ucode_ver = le32_to_cpu(ucode->ver);
1558 pieces->build = le32_to_cpu(ucode->build);
1559 data = ucode->data;
1560
1561 len -= sizeof(*ucode);
1562
Johannes Berg704da532010-07-14 09:34:50 -07001563 while (len >= sizeof(*tlv)) {
Johannes Bergdd7a2502010-04-28 23:33:10 -07001564 u16 tlv_alt;
Johannes Bergdd7a2502010-04-28 23:33:10 -07001565
1566 len -= sizeof(*tlv);
1567 tlv = (void *)data;
1568
1569 tlv_len = le32_to_cpu(tlv->length);
1570 tlv_type = le16_to_cpu(tlv->type);
1571 tlv_alt = le16_to_cpu(tlv->alternative);
1572 tlv_data = tlv->data;
1573
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001574 if (len < tlv_len) {
1575 IWL_ERR(priv, "invalid TLV len: %zd/%u\n",
1576 len, tlv_len);
Johannes Bergdd7a2502010-04-28 23:33:10 -07001577 return -EINVAL;
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001578 }
Johannes Bergdd7a2502010-04-28 23:33:10 -07001579 len -= ALIGN(tlv_len, 4);
1580 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
1581
1582 /*
1583 * Alternative 0 is always valid.
1584 *
1585 * Skip alternative TLVs that are not selected.
1586 */
1587 if (tlv_alt != 0 && tlv_alt != wanted_alternative)
1588 continue;
1589
1590 switch (tlv_type) {
1591 case IWL_UCODE_TLV_INST:
1592 pieces->inst = tlv_data;
1593 pieces->inst_size = tlv_len;
1594 break;
1595 case IWL_UCODE_TLV_DATA:
1596 pieces->data = tlv_data;
1597 pieces->data_size = tlv_len;
1598 break;
1599 case IWL_UCODE_TLV_INIT:
1600 pieces->init = tlv_data;
1601 pieces->init_size = tlv_len;
1602 break;
1603 case IWL_UCODE_TLV_INIT_DATA:
1604 pieces->init_data = tlv_data;
1605 pieces->init_data_size = tlv_len;
1606 break;
1607 case IWL_UCODE_TLV_BOOT:
1608 pieces->boot = tlv_data;
1609 pieces->boot_size = tlv_len;
1610 break;
1611 case IWL_UCODE_TLV_PROBE_MAX_LEN:
Johannes Berg704da532010-07-14 09:34:50 -07001612 if (tlv_len != sizeof(u32))
1613 goto invalid_tlv_len;
1614 capa->max_probe_length =
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001615 le32_to_cpup((__le32 *)tlv_data);
Johannes Bergdd7a2502010-04-28 23:33:10 -07001616 break;
Johannes Bergece9c4e2010-08-23 10:46:49 +02001617 case IWL_UCODE_TLV_PAN:
1618 if (tlv_len)
1619 goto invalid_tlv_len;
1620 capa->pan = true;
1621 break;
Johannes Bergb2e640d2010-05-05 23:24:54 -07001622 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
Johannes Berg704da532010-07-14 09:34:50 -07001623 if (tlv_len != sizeof(u32))
1624 goto invalid_tlv_len;
1625 pieces->init_evtlog_ptr =
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001626 le32_to_cpup((__le32 *)tlv_data);
Johannes Bergb2e640d2010-05-05 23:24:54 -07001627 break;
1628 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
Johannes Berg704da532010-07-14 09:34:50 -07001629 if (tlv_len != sizeof(u32))
1630 goto invalid_tlv_len;
1631 pieces->init_evtlog_size =
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001632 le32_to_cpup((__le32 *)tlv_data);
Johannes Bergb2e640d2010-05-05 23:24:54 -07001633 break;
1634 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
Johannes Berg704da532010-07-14 09:34:50 -07001635 if (tlv_len != sizeof(u32))
1636 goto invalid_tlv_len;
1637 pieces->init_errlog_ptr =
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001638 le32_to_cpup((__le32 *)tlv_data);
Johannes Bergb2e640d2010-05-05 23:24:54 -07001639 break;
1640 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
Johannes Berg704da532010-07-14 09:34:50 -07001641 if (tlv_len != sizeof(u32))
1642 goto invalid_tlv_len;
1643 pieces->inst_evtlog_ptr =
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001644 le32_to_cpup((__le32 *)tlv_data);
Johannes Bergb2e640d2010-05-05 23:24:54 -07001645 break;
1646 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
Johannes Berg704da532010-07-14 09:34:50 -07001647 if (tlv_len != sizeof(u32))
1648 goto invalid_tlv_len;
1649 pieces->inst_evtlog_size =
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001650 le32_to_cpup((__le32 *)tlv_data);
Johannes Bergb2e640d2010-05-05 23:24:54 -07001651 break;
1652 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
Johannes Berg704da532010-07-14 09:34:50 -07001653 if (tlv_len != sizeof(u32))
1654 goto invalid_tlv_len;
1655 pieces->inst_errlog_ptr =
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001656 le32_to_cpup((__le32 *)tlv_data);
Johannes Bergb2e640d2010-05-05 23:24:54 -07001657 break;
Wey-Yi Guyc8312fa2010-06-28 13:05:17 -07001658 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
1659 if (tlv_len)
Johannes Berg704da532010-07-14 09:34:50 -07001660 goto invalid_tlv_len;
1661 priv->enhance_sensitivity_table = true;
Wey-Yi Guyc8312fa2010-06-28 13:05:17 -07001662 break;
Wey-Yi Guy6a822d02010-07-13 17:13:15 -07001663 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
Johannes Berg704da532010-07-14 09:34:50 -07001664 if (tlv_len != sizeof(u32))
1665 goto invalid_tlv_len;
1666 capa->standard_phy_calibration_size =
Wey-Yi Guy6a822d02010-07-13 17:13:15 -07001667 le32_to_cpup((__le32 *)tlv_data);
1668 break;
Johannes Bergdd7a2502010-04-28 23:33:10 -07001669 default:
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001670 IWL_WARN(priv, "unknown TLV: %d\n", tlv_type);
Johannes Bergdd7a2502010-04-28 23:33:10 -07001671 break;
1672 }
1673 }
1674
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001675 if (len) {
1676 IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len);
1677 iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len);
Johannes Berg704da532010-07-14 09:34:50 -07001678 return -EINVAL;
Wey-Yi Guyad8d8332010-06-22 14:31:45 -07001679 }
Johannes Bergdd7a2502010-04-28 23:33:10 -07001680
Johannes Berg704da532010-07-14 09:34:50 -07001681 return 0;
1682
1683 invalid_tlv_len:
1684 IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1685 iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len);
1686
1687 return -EINVAL;
Johannes Bergdd7a2502010-04-28 23:33:10 -07001688}
1689
Johannes Bergb08dfd02010-01-29 11:54:56 -08001690/**
1691 * iwl_ucode_callback - callback when firmware was loaded
1692 *
1693 * If loaded successfully, copies the firmware into buffers
1694 * for the card to fetch (via DMA).
1695 */
1696static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
1697{
1698 struct iwl_priv *priv = context;
1699 struct iwl_ucode_header *ucode;
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001700 int err;
1701 struct iwlagn_firmware_pieces pieces;
Reinette Chatrea0987a82008-12-02 12:14:06 -08001702 const unsigned int api_max = priv->cfg->ucode_api_max;
1703 const unsigned int api_min = priv->cfg->ucode_api_min;
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001704 u32 api_ver;
Johannes Berg3e4de762010-04-28 12:09:12 -07001705 char buildstr[25];
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001706 u32 build;
Johannes Bergdd7a2502010-04-28 23:33:10 -07001707 struct iwlagn_ucode_capabilities ucode_capa = {
1708 .max_probe_length = 200,
Wey-Yi Guy6a822d02010-07-13 17:13:15 -07001709 .standard_phy_calibration_size =
Shanyu Zhao642454c2010-09-21 12:06:18 -07001710 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE,
Johannes Bergdd7a2502010-04-28 23:33:10 -07001711 };
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001712
1713 memset(&pieces, 0, sizeof(pieces));
Zhu Yib481de92007-09-25 17:54:57 -07001714
Johannes Bergb08dfd02010-01-29 11:54:56 -08001715 if (!ucode_raw) {
Jay Sternberg39396082010-08-12 10:24:07 -07001716 if (priv->fw_index <= priv->cfg->ucode_api_max)
1717 IWL_ERR(priv,
1718 "request for firmware file '%s' failed.\n",
1719 priv->firmware_name);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001720 goto try_again;
Zhu Yib481de92007-09-25 17:54:57 -07001721 }
1722
Johannes Bergb08dfd02010-01-29 11:54:56 -08001723 IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
1724 priv->firmware_name, ucode_raw->size);
Zhu Yib481de92007-09-25 17:54:57 -07001725
Johannes Berg22adba22010-04-28 12:09:14 -07001726 /* Make sure that we got at least the API version number */
1727 if (ucode_raw->size < 4) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08001728 IWL_ERR(priv, "File size way too small!\n");
Johannes Bergb08dfd02010-01-29 11:54:56 -08001729 goto try_again;
Zhu Yib481de92007-09-25 17:54:57 -07001730 }
1731
1732 /* Data from ucode file: header followed by uCode images */
Jay Sternbergcc0f5552009-07-17 09:30:16 -07001733 ucode = (struct iwl_ucode_header *)ucode_raw->data;
Zhu Yib481de92007-09-25 17:54:57 -07001734
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001735 if (ucode->ver)
1736 err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
1737 else
Johannes Bergdd7a2502010-04-28 23:33:10 -07001738 err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
1739 &ucode_capa);
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001740
1741 if (err)
1742 goto try_again;
1743
Reinette Chatrea0987a82008-12-02 12:14:06 -08001744 api_ver = IWL_UCODE_API(priv->ucode_ver);
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001745 build = pieces.build;
Zhu Yib481de92007-09-25 17:54:57 -07001746
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001747 /*
1748 * api_ver should match the api version forming part of the
Reinette Chatrea0987a82008-12-02 12:14:06 -08001749 * firmware filename ... but we don't check for that and only rely
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001750 * on the API version read from firmware header from here on forward
1751 */
Wey-Yi Guy65cccfb2010-09-21 16:15:58 -07001752 /* no api version check required for experimental uCode */
1753 if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1754 if (api_ver < api_min || api_ver > api_max) {
1755 IWL_ERR(priv,
1756 "Driver unable to support your firmware API. "
1757 "Driver supports v%u, firmware is v%u.\n",
1758 api_max, api_ver);
1759 goto try_again;
1760 }
Johannes Bergb08dfd02010-01-29 11:54:56 -08001761
Wey-Yi Guy65cccfb2010-09-21 16:15:58 -07001762 if (api_ver != api_max)
1763 IWL_ERR(priv,
1764 "Firmware has old API version. Expected v%u, "
1765 "got v%u. New firmware can be obtained "
1766 "from http://www.intellinuxwireless.org.\n",
1767 api_max, api_ver);
1768 }
Reinette Chatrea0987a82008-12-02 12:14:06 -08001769
Johannes Berg3e4de762010-04-28 12:09:12 -07001770 if (build)
Jay Sternberg39396082010-08-12 10:24:07 -07001771 sprintf(buildstr, " build %u%s", build,
1772 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
1773 ? " (EXP)" : "");
Johannes Berg3e4de762010-04-28 12:09:12 -07001774 else
1775 buildstr[0] = '\0';
Reinette Chatrea0987a82008-12-02 12:14:06 -08001776
Johannes Berg3e4de762010-04-28 12:09:12 -07001777 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
Reinette Chatre5ebeb5a2009-10-30 14:36:04 -07001778 IWL_UCODE_MAJOR(priv->ucode_ver),
1779 IWL_UCODE_MINOR(priv->ucode_ver),
1780 IWL_UCODE_API(priv->ucode_ver),
Johannes Berg3e4de762010-04-28 12:09:12 -07001781 IWL_UCODE_SERIAL(priv->ucode_ver),
1782 buildstr);
Reinette Chatre5ebeb5a2009-10-30 14:36:04 -07001783
Johannes Berg3e4de762010-04-28 12:09:12 -07001784 snprintf(priv->hw->wiphy->fw_version,
1785 sizeof(priv->hw->wiphy->fw_version),
1786 "%u.%u.%u.%u%s",
1787 IWL_UCODE_MAJOR(priv->ucode_ver),
1788 IWL_UCODE_MINOR(priv->ucode_ver),
1789 IWL_UCODE_API(priv->ucode_ver),
1790 IWL_UCODE_SERIAL(priv->ucode_ver),
1791 buildstr);
Zhu Yib481de92007-09-25 17:54:57 -07001792
Johannes Bergb08dfd02010-01-29 11:54:56 -08001793 /*
1794 * For any of the failures below (before allocating pci memory)
1795 * we will try to load a version with a smaller API -- maybe the
1796 * user just got a corrupted version of the latest API.
1797 */
1798
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001799 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1800 priv->ucode_ver);
1801 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
1802 pieces.inst_size);
1803 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
1804 pieces.data_size);
1805 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
1806 pieces.init_size);
1807 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
1808 pieces.init_data_size);
1809 IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %Zd\n",
1810 pieces.boot_size);
Zhu Yib481de92007-09-25 17:54:57 -07001811
1812 /* Verify that uCode images will fit in card's SRAM */
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001813 if (pieces.inst_size > priv->hw_params.max_inst_size) {
1814 IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
1815 pieces.inst_size);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001816 goto try_again;
Zhu Yib481de92007-09-25 17:54:57 -07001817 }
1818
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001819 if (pieces.data_size > priv->hw_params.max_data_size) {
1820 IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
1821 pieces.data_size);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001822 goto try_again;
Zhu Yib481de92007-09-25 17:54:57 -07001823 }
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001824
1825 if (pieces.init_size > priv->hw_params.max_inst_size) {
1826 IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
1827 pieces.init_size);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001828 goto try_again;
Zhu Yib481de92007-09-25 17:54:57 -07001829 }
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001830
1831 if (pieces.init_data_size > priv->hw_params.max_data_size) {
1832 IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
1833 pieces.init_data_size);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001834 goto try_again;
Zhu Yib481de92007-09-25 17:54:57 -07001835 }
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001836
1837 if (pieces.boot_size > priv->hw_params.max_bsm_size) {
1838 IWL_ERR(priv, "uCode boot instr len %Zd too large to fit in\n",
1839 pieces.boot_size);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001840 goto try_again;
Zhu Yib481de92007-09-25 17:54:57 -07001841 }
1842
1843 /* Allocate ucode buffers for card's bus-master loading ... */
1844
1845 /* Runtime instructions and 2 copies of data:
1846 * 1) unmodified from disk
1847 * 2) backup cache for save/restore during power-downs */
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001848 priv->ucode_code.len = pieces.inst_size;
Tomas Winkler98c92212008-01-14 17:46:20 -08001849 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
Zhu Yib481de92007-09-25 17:54:57 -07001850
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001851 priv->ucode_data.len = pieces.data_size;
Tomas Winkler98c92212008-01-14 17:46:20 -08001852 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
Zhu Yib481de92007-09-25 17:54:57 -07001853
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001854 priv->ucode_data_backup.len = pieces.data_size;
Tomas Winkler98c92212008-01-14 17:46:20 -08001855 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
Zhu Yib481de92007-09-25 17:54:57 -07001856
Zhu, Yi1f304e42009-01-23 13:45:22 -08001857 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
1858 !priv->ucode_data_backup.v_addr)
1859 goto err_pci_alloc;
1860
Zhu Yib481de92007-09-25 17:54:57 -07001861 /* Initialization instructions and data */
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001862 if (pieces.init_size && pieces.init_data_size) {
1863 priv->ucode_init.len = pieces.init_size;
Tomas Winkler98c92212008-01-14 17:46:20 -08001864 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
Zhu Yib481de92007-09-25 17:54:57 -07001865
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001866 priv->ucode_init_data.len = pieces.init_data_size;
Tomas Winkler98c92212008-01-14 17:46:20 -08001867 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
Tomas Winkler90e759d2007-11-29 11:09:41 +08001868
1869 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
1870 goto err_pci_alloc;
1871 }
Zhu Yib481de92007-09-25 17:54:57 -07001872
1873 /* Bootstrap (instructions only, no data) */
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001874 if (pieces.boot_size) {
1875 priv->ucode_boot.len = pieces.boot_size;
Tomas Winkler98c92212008-01-14 17:46:20 -08001876 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
Zhu Yib481de92007-09-25 17:54:57 -07001877
Tomas Winkler90e759d2007-11-29 11:09:41 +08001878 if (!priv->ucode_boot.v_addr)
1879 goto err_pci_alloc;
1880 }
Zhu Yib481de92007-09-25 17:54:57 -07001881
Johannes Bergb2e640d2010-05-05 23:24:54 -07001882 /* Now that we can no longer fail, copy information */
1883
1884 /*
1885 * The (size - 16) / 12 formula is based on the information recorded
1886 * for each event, which is of mode 1 (including timestamp) for all
1887 * new microcodes that include this information.
1888 */
1889 priv->_agn.init_evtlog_ptr = pieces.init_evtlog_ptr;
1890 if (pieces.init_evtlog_size)
1891 priv->_agn.init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
1892 else
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07001893 priv->_agn.init_evtlog_size =
1894 priv->cfg->base_params->max_event_log_size;
Johannes Bergb2e640d2010-05-05 23:24:54 -07001895 priv->_agn.init_errlog_ptr = pieces.init_errlog_ptr;
1896 priv->_agn.inst_evtlog_ptr = pieces.inst_evtlog_ptr;
1897 if (pieces.inst_evtlog_size)
1898 priv->_agn.inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
1899 else
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07001900 priv->_agn.inst_evtlog_size =
1901 priv->cfg->base_params->max_event_log_size;
Johannes Bergb2e640d2010-05-05 23:24:54 -07001902 priv->_agn.inst_errlog_ptr = pieces.inst_errlog_ptr;
1903
Johannes Bergece9c4e2010-08-23 10:46:49 +02001904 if (ucode_capa.pan) {
1905 priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
Johannes Bergc10afb62010-08-23 10:46:43 +02001906 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
Johannes Bergece9c4e2010-08-23 10:46:49 +02001907 } else
1908 priv->sta_key_max_num = STA_KEY_MAX_NUM;
Johannes Bergc10afb62010-08-23 10:46:43 +02001909
Zhu Yib481de92007-09-25 17:54:57 -07001910 /* Copy images into buffers for card's bus-master reads ... */
1911
1912 /* Runtime instructions (first block of data in file) */
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001913 IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n",
1914 pieces.inst_size);
1915 memcpy(priv->ucode_code.v_addr, pieces.inst, pieces.inst_size);
Jay Sternbergcc0f5552009-07-17 09:30:16 -07001916
Tomas Winklere1623442009-01-27 14:27:56 -08001917 IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
Zhu Yib481de92007-09-25 17:54:57 -07001918 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
1919
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001920 /*
1921 * Runtime data
1922 * NOTE: Copy into backup buffer will be done in iwl_up()
1923 */
1924 IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n",
1925 pieces.data_size);
1926 memcpy(priv->ucode_data.v_addr, pieces.data, pieces.data_size);
1927 memcpy(priv->ucode_data_backup.v_addr, pieces.data, pieces.data_size);
Zhu Yib481de92007-09-25 17:54:57 -07001928
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001929 /* Initialization instructions */
1930 if (pieces.init_size) {
Tomas Winklere1623442009-01-27 14:27:56 -08001931 IWL_DEBUG_INFO(priv, "Copying (but not loading) init instr len %Zd\n",
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001932 pieces.init_size);
1933 memcpy(priv->ucode_init.v_addr, pieces.init, pieces.init_size);
Zhu Yib481de92007-09-25 17:54:57 -07001934 }
1935
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001936 /* Initialization data */
1937 if (pieces.init_data_size) {
Tomas Winklere1623442009-01-27 14:27:56 -08001938 IWL_DEBUG_INFO(priv, "Copying (but not loading) init data len %Zd\n",
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001939 pieces.init_data_size);
1940 memcpy(priv->ucode_init_data.v_addr, pieces.init_data,
1941 pieces.init_data_size);
Zhu Yib481de92007-09-25 17:54:57 -07001942 }
1943
Johannes Berg0e9a44d2010-04-28 12:09:16 -07001944 /* Bootstrap instructions */
1945 IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n",
1946 pieces.boot_size);
1947 memcpy(priv->ucode_boot.v_addr, pieces.boot, pieces.boot_size);
Zhu Yib481de92007-09-25 17:54:57 -07001948
Wey-Yi Guy6a822d02010-07-13 17:13:15 -07001949 /*
1950 * figure out the offset of chain noise reset and gain commands
1951 * base on the size of standard phy calibration commands table size
1952 */
1953 if (ucode_capa.standard_phy_calibration_size >
1954 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1955 ucode_capa.standard_phy_calibration_size =
1956 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1957
1958 priv->_agn.phy_calib_chain_noise_reset_cmd =
1959 ucode_capa.standard_phy_calibration_size;
1960 priv->_agn.phy_calib_chain_noise_gain_cmd =
1961 ucode_capa.standard_phy_calibration_size + 1;
1962
Johannes Bergb08dfd02010-01-29 11:54:56 -08001963 /**************************************************
1964 * This is still part of probe() in a sense...
1965 *
1966 * 9. Setup and register with mac80211 and debugfs
1967 **************************************************/
Johannes Bergdd7a2502010-04-28 23:33:10 -07001968 err = iwl_mac_setup_register(priv, &ucode_capa);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001969 if (err)
1970 goto out_unbind;
1971
1972 err = iwl_dbgfs_register(priv, DRV_NAME);
1973 if (err)
1974 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
1975
Emmanuel Grumbach7d476182010-05-23 00:14:08 -07001976 err = sysfs_create_group(&priv->pci_dev->dev.kobj,
1977 &iwl_attribute_group);
1978 if (err) {
1979 IWL_ERR(priv, "failed to create sysfs device attributes\n");
1980 goto out_unbind;
1981 }
1982
Zhu Yib481de92007-09-25 17:54:57 -07001983 /* We have our copies now, allow OS release its copies */
1984 release_firmware(ucode_raw);
Reinette Chatrea15707d2010-05-10 15:08:11 -07001985 complete(&priv->_agn.firmware_loading_complete);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001986 return;
1987
1988 try_again:
1989 /* try next, if any */
1990 if (iwl_request_firmware(priv, false))
1991 goto out_unbind;
1992 release_firmware(ucode_raw);
1993 return;
Zhu Yib481de92007-09-25 17:54:57 -07001994
1995 err_pci_alloc:
Winkler, Tomas15b16872008-12-19 10:37:33 +08001996 IWL_ERR(priv, "failed to allocate pci memory\n");
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07001997 iwl_dealloc_ucode_pci(priv);
Johannes Bergb08dfd02010-01-29 11:54:56 -08001998 out_unbind:
Reinette Chatrea15707d2010-05-10 15:08:11 -07001999 complete(&priv->_agn.firmware_loading_complete);
Johannes Bergb08dfd02010-01-29 11:54:56 -08002000 device_release_driver(&priv->pci_dev->dev);
Zhu Yib481de92007-09-25 17:54:57 -07002001 release_firmware(ucode_raw);
Zhu Yib481de92007-09-25 17:54:57 -07002002}
2003
Reinette Chatreb7a79402009-09-25 14:24:23 -07002004static const char *desc_lookup_text[] = {
2005 "OK",
2006 "FAIL",
2007 "BAD_PARAM",
2008 "BAD_CHECKSUM",
2009 "NMI_INTERRUPT_WDG",
2010 "SYSASSERT",
2011 "FATAL_ERROR",
2012 "BAD_COMMAND",
2013 "HW_ERROR_TUNE_LOCK",
2014 "HW_ERROR_TEMPERATURE",
2015 "ILLEGAL_CHAN_FREQ",
2016 "VCC_NOT_STABLE",
2017 "FH_ERROR",
2018 "NMI_INTERRUPT_HOST",
2019 "NMI_INTERRUPT_ACTION_PT",
2020 "NMI_INTERRUPT_UNKNOWN",
2021 "UCODE_VERSION_MISMATCH",
2022 "HW_ERROR_ABS_LOCK",
2023 "HW_ERROR_CAL_LOCK_FAIL",
2024 "NMI_INTERRUPT_INST_ACTION_PT",
2025 "NMI_INTERRUPT_DATA_ACTION_PT",
2026 "NMI_TRM_HW_ER",
2027 "NMI_INTERRUPT_TRM",
2028 "NMI_INTERRUPT_BREAK_POINT"
2029 "DEBUG_0",
2030 "DEBUG_1",
2031 "DEBUG_2",
2032 "DEBUG_3",
Reinette Chatreb7a79402009-09-25 14:24:23 -07002033};
2034
Jay Sternberg4b586452010-07-02 15:49:10 -07002035static struct { char *name; u8 num; } advanced_lookup[] = {
2036 { "NMI_INTERRUPT_WDG", 0x34 },
2037 { "SYSASSERT", 0x35 },
2038 { "UCODE_VERSION_MISMATCH", 0x37 },
2039 { "BAD_COMMAND", 0x38 },
2040 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
2041 { "FATAL_ERROR", 0x3D },
2042 { "NMI_TRM_HW_ERR", 0x46 },
2043 { "NMI_INTERRUPT_TRM", 0x4C },
2044 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
2045 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
2046 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
2047 { "NMI_INTERRUPT_HOST", 0x66 },
2048 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
2049 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
2050 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
2051 { "ADVANCED_SYSASSERT", 0 },
2052};
2053
2054static const char *desc_lookup(u32 num)
Reinette Chatreb7a79402009-09-25 14:24:23 -07002055{
Jay Sternberg4b586452010-07-02 15:49:10 -07002056 int i;
2057 int max = ARRAY_SIZE(desc_lookup_text);
Reinette Chatreb7a79402009-09-25 14:24:23 -07002058
Jay Sternberg4b586452010-07-02 15:49:10 -07002059 if (num < max)
2060 return desc_lookup_text[num];
Reinette Chatreb7a79402009-09-25 14:24:23 -07002061
Jay Sternberg4b586452010-07-02 15:49:10 -07002062 max = ARRAY_SIZE(advanced_lookup) - 1;
2063 for (i = 0; i < max; i++) {
2064 if (advanced_lookup[i].num == num)
2065 break;;
2066 }
2067 return advanced_lookup[i].name;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002068}
2069
2070#define ERROR_START_OFFSET (1 * sizeof(u32))
2071#define ERROR_ELEM_SIZE (7 * sizeof(u32))
2072
2073void iwl_dump_nic_error_log(struct iwl_priv *priv)
2074{
2075 u32 data2, line;
2076 u32 desc, time, count, base, data1;
2077 u32 blink1, blink2, ilink1, ilink2;
Wey-Yi Guy461ef382010-03-30 17:57:53 -07002078 u32 pc, hcmd;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002079
Johannes Bergb2e640d2010-05-05 23:24:54 -07002080 if (priv->ucode_type == UCODE_INIT) {
Reinette Chatreb7a79402009-09-25 14:24:23 -07002081 base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
Johannes Bergb2e640d2010-05-05 23:24:54 -07002082 if (!base)
2083 base = priv->_agn.init_errlog_ptr;
2084 } else {
Reinette Chatreb7a79402009-09-25 14:24:23 -07002085 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
Johannes Bergb2e640d2010-05-05 23:24:54 -07002086 if (!base)
2087 base = priv->_agn.inst_errlog_ptr;
2088 }
Reinette Chatreb7a79402009-09-25 14:24:23 -07002089
2090 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
Wey-Yi Guy212fb572009-12-02 12:53:00 -08002091 IWL_ERR(priv,
2092 "Not valid error log pointer 0x%08X for %s uCode\n",
2093 base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
Reinette Chatreb7a79402009-09-25 14:24:23 -07002094 return;
2095 }
2096
2097 count = iwl_read_targ_mem(priv, base);
2098
2099 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
2100 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
2101 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
2102 priv->status, count);
2103 }
2104
2105 desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
Wey-Yi Guy6e6ebf42010-08-27 10:41:37 -07002106 priv->isr_stats.err_code = desc;
Wey-Yi Guy461ef382010-03-30 17:57:53 -07002107 pc = iwl_read_targ_mem(priv, base + 2 * sizeof(u32));
Reinette Chatreb7a79402009-09-25 14:24:23 -07002108 blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
2109 blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
2110 ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
2111 ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
2112 data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
2113 data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
2114 line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
2115 time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
Wey-Yi Guy461ef382010-03-30 17:57:53 -07002116 hcmd = iwl_read_targ_mem(priv, base + 22 * sizeof(u32));
Reinette Chatreb7a79402009-09-25 14:24:23 -07002117
Johannes Bergbe1a71a2009-10-02 13:44:02 -07002118 trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line,
2119 blink1, blink2, ilink1, ilink2);
2120
Jay Sternberg87563712010-06-14 14:40:40 -07002121 IWL_ERR(priv, "Desc Time "
Reinette Chatreb7a79402009-09-25 14:24:23 -07002122 "data1 data2 line\n");
Jay Sternberg87563712010-06-14 14:40:40 -07002123 IWL_ERR(priv, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",
Reinette Chatreb7a79402009-09-25 14:24:23 -07002124 desc_lookup(desc), desc, time, data1, data2, line);
Wey-Yi Guy461ef382010-03-30 17:57:53 -07002125 IWL_ERR(priv, "pc blink1 blink2 ilink1 ilink2 hcmd\n");
2126 IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
2127 pc, blink1, blink2, ilink1, ilink2, hcmd);
Reinette Chatreb7a79402009-09-25 14:24:23 -07002128}
2129
2130#define EVENT_START_OFFSET (4 * sizeof(u32))
2131
2132/**
2133 * iwl_print_event_log - Dump error event log to syslog
2134 *
2135 */
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002136static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
2137 u32 num_events, u32 mode,
2138 int pos, char **buf, size_t bufsz)
Reinette Chatreb7a79402009-09-25 14:24:23 -07002139{
2140 u32 i;
2141 u32 base; /* SRAM byte address of event log header */
2142 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
2143 u32 ptr; /* SRAM byte address of log data */
2144 u32 ev, time, data; /* event log data */
Ben Cahille5854472009-11-06 14:52:58 -08002145 unsigned long reg_flags;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002146
2147 if (num_events == 0)
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002148 return pos;
Johannes Bergb2e640d2010-05-05 23:24:54 -07002149
2150 if (priv->ucode_type == UCODE_INIT) {
Reinette Chatreb7a79402009-09-25 14:24:23 -07002151 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
Johannes Bergb2e640d2010-05-05 23:24:54 -07002152 if (!base)
2153 base = priv->_agn.init_evtlog_ptr;
2154 } else {
Reinette Chatreb7a79402009-09-25 14:24:23 -07002155 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
Johannes Bergb2e640d2010-05-05 23:24:54 -07002156 if (!base)
2157 base = priv->_agn.inst_evtlog_ptr;
2158 }
Reinette Chatreb7a79402009-09-25 14:24:23 -07002159
2160 if (mode == 0)
2161 event_size = 2 * sizeof(u32);
2162 else
2163 event_size = 3 * sizeof(u32);
2164
2165 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
2166
Ben Cahille5854472009-11-06 14:52:58 -08002167 /* Make sure device is powered up for SRAM reads */
2168 spin_lock_irqsave(&priv->reg_lock, reg_flags);
2169 iwl_grab_nic_access(priv);
2170
2171 /* Set starting address; reads will auto-increment */
2172 _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
2173 rmb();
2174
Reinette Chatreb7a79402009-09-25 14:24:23 -07002175 /* "time" is actually "data" for mode 0 (no timestamp).
2176 * place event id # at far right for easier visual parsing. */
2177 for (i = 0; i < num_events; i++) {
Ben Cahille5854472009-11-06 14:52:58 -08002178 ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
2179 time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
Reinette Chatreb7a79402009-09-25 14:24:23 -07002180 if (mode == 0) {
2181 /* data, ev */
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002182 if (bufsz) {
2183 pos += scnprintf(*buf + pos, bufsz - pos,
2184 "EVT_LOG:0x%08x:%04u\n",
2185 time, ev);
2186 } else {
2187 trace_iwlwifi_dev_ucode_event(priv, 0,
2188 time, ev);
2189 IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
2190 time, ev);
2191 }
Reinette Chatreb7a79402009-09-25 14:24:23 -07002192 } else {
Ben Cahille5854472009-11-06 14:52:58 -08002193 data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002194 if (bufsz) {
2195 pos += scnprintf(*buf + pos, bufsz - pos,
2196 "EVT_LOGT:%010u:0x%08x:%04u\n",
2197 time, data, ev);
2198 } else {
2199 IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
Reinette Chatreb7a79402009-09-25 14:24:23 -07002200 time, data, ev);
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002201 trace_iwlwifi_dev_ucode_event(priv, time,
2202 data, ev);
2203 }
Reinette Chatreb7a79402009-09-25 14:24:23 -07002204 }
2205 }
Ben Cahille5854472009-11-06 14:52:58 -08002206
2207 /* Allow device to power down */
2208 iwl_release_nic_access(priv);
2209 spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002210 return pos;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002211}
2212
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002213/**
2214 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
2215 */
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002216static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
2217 u32 num_wraps, u32 next_entry,
2218 u32 size, u32 mode,
2219 int pos, char **buf, size_t bufsz)
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002220{
2221 /*
2222 * display the newest DEFAULT_LOG_ENTRIES entries
2223 * i.e the entries just before the next ont that uCode would fill.
2224 */
2225 if (num_wraps) {
2226 if (next_entry < size) {
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002227 pos = iwl_print_event_log(priv,
2228 capacity - (size - next_entry),
2229 size - next_entry, mode,
2230 pos, buf, bufsz);
2231 pos = iwl_print_event_log(priv, 0,
2232 next_entry, mode,
2233 pos, buf, bufsz);
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002234 } else
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002235 pos = iwl_print_event_log(priv, next_entry - size,
2236 size, mode, pos, buf, bufsz);
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002237 } else {
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002238 if (next_entry < size) {
2239 pos = iwl_print_event_log(priv, 0, next_entry,
2240 mode, pos, buf, bufsz);
2241 } else {
2242 pos = iwl_print_event_log(priv, next_entry - size,
2243 size, mode, pos, buf, bufsz);
2244 }
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002245 }
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002246 return pos;
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002247}
2248
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002249#define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
2250
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002251int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
2252 char **buf, bool display)
Reinette Chatreb7a79402009-09-25 14:24:23 -07002253{
2254 u32 base; /* SRAM byte address of event log header */
2255 u32 capacity; /* event log capacity in # entries */
2256 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
2257 u32 num_wraps; /* # times uCode wrapped to top of log */
2258 u32 next_entry; /* index of next entry to be written by uCode */
2259 u32 size; /* # entries that we'll print */
Johannes Bergb2e640d2010-05-05 23:24:54 -07002260 u32 logsize;
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002261 int pos = 0;
2262 size_t bufsz = 0;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002263
Johannes Bergb2e640d2010-05-05 23:24:54 -07002264 if (priv->ucode_type == UCODE_INIT) {
Reinette Chatreb7a79402009-09-25 14:24:23 -07002265 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
Johannes Bergb2e640d2010-05-05 23:24:54 -07002266 logsize = priv->_agn.init_evtlog_size;
2267 if (!base)
2268 base = priv->_agn.init_evtlog_ptr;
2269 } else {
Reinette Chatreb7a79402009-09-25 14:24:23 -07002270 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
Johannes Bergb2e640d2010-05-05 23:24:54 -07002271 logsize = priv->_agn.inst_evtlog_size;
2272 if (!base)
2273 base = priv->_agn.inst_evtlog_ptr;
2274 }
Reinette Chatreb7a79402009-09-25 14:24:23 -07002275
2276 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
Wey-Yi Guy212fb572009-12-02 12:53:00 -08002277 IWL_ERR(priv,
2278 "Invalid event log pointer 0x%08X for %s uCode\n",
2279 base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
Wey-Yi Guy937c3972010-01-15 13:43:36 -08002280 return -EINVAL;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002281 }
2282
2283 /* event log header */
2284 capacity = iwl_read_targ_mem(priv, base);
2285 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
2286 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
2287 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
2288
Johannes Bergb2e640d2010-05-05 23:24:54 -07002289 if (capacity > logsize) {
Ben Cahill84c40692009-11-06 14:52:57 -08002290 IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n",
Johannes Bergb2e640d2010-05-05 23:24:54 -07002291 capacity, logsize);
2292 capacity = logsize;
Ben Cahill84c40692009-11-06 14:52:57 -08002293 }
2294
Johannes Bergb2e640d2010-05-05 23:24:54 -07002295 if (next_entry > logsize) {
Ben Cahill84c40692009-11-06 14:52:57 -08002296 IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
Johannes Bergb2e640d2010-05-05 23:24:54 -07002297 next_entry, logsize);
2298 next_entry = logsize;
Ben Cahill84c40692009-11-06 14:52:57 -08002299 }
2300
Reinette Chatreb7a79402009-09-25 14:24:23 -07002301 size = num_wraps ? capacity : next_entry;
2302
2303 /* bail out if nothing in log */
2304 if (size == 0) {
2305 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002306 return pos;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002307 }
2308
Wey-Yi Guy9f28ebc2010-11-26 13:24:19 -08002309 /* enable/disable bt channel inhibition */
Wey-Yi Guyf37837c2010-08-23 07:57:12 -07002310 priv->bt_ch_announce = iwlagn_bt_ch_announce;
2311
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002312#ifdef CONFIG_IWLWIFI_DEBUG
Wey-Yi Guy521d9bc2009-12-10 14:37:23 -08002313 if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log)
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002314 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2315 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
2316#else
2317 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2318 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
Reinette Chatreb7a79402009-09-25 14:24:23 -07002319#endif
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002320 IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
2321 size);
2322
2323#ifdef CONFIG_IWLWIFI_DEBUG
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002324 if (display) {
2325 if (full_log)
2326 bufsz = capacity * 48;
2327 else
2328 bufsz = size * 48;
2329 *buf = kmalloc(bufsz, GFP_KERNEL);
2330 if (!*buf)
Wey-Yi Guy937c3972010-01-15 13:43:36 -08002331 return -ENOMEM;
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002332 }
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002333 if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
2334 /*
2335 * if uCode has wrapped back to top of log,
2336 * start at the oldest entry,
2337 * i.e the next one that uCode would fill.
2338 */
2339 if (num_wraps)
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002340 pos = iwl_print_event_log(priv, next_entry,
2341 capacity - next_entry, mode,
2342 pos, buf, bufsz);
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002343 /* (then/else) start at top of log */
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002344 pos = iwl_print_event_log(priv, 0,
2345 next_entry, mode, pos, buf, bufsz);
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002346 } else
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002347 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2348 next_entry, size, mode,
2349 pos, buf, bufsz);
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002350#else
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002351 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2352 next_entry, size, mode,
2353 pos, buf, bufsz);
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002354#endif
Wey-Yi Guyb03d7d02009-12-14 14:12:20 -08002355 return pos;
Wey-Yi Guyc341ddb2009-11-20 12:05:07 -08002356}
Reinette Chatreb7a79402009-09-25 14:24:23 -07002357
Wey-Yi Guy0975cc82010-07-31 08:34:07 -07002358static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
2359{
2360 struct iwl_ct_kill_config cmd;
2361 struct iwl_ct_kill_throttling_config adv_cmd;
2362 unsigned long flags;
2363 int ret = 0;
2364
2365 spin_lock_irqsave(&priv->lock, flags);
2366 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
2367 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
2368 spin_unlock_irqrestore(&priv->lock, flags);
2369 priv->thermal_throttle.ct_kill_toggle = false;
2370
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002371 if (priv->cfg->base_params->support_ct_kill_exit) {
Wey-Yi Guy0975cc82010-07-31 08:34:07 -07002372 adv_cmd.critical_temperature_enter =
2373 cpu_to_le32(priv->hw_params.ct_kill_threshold);
2374 adv_cmd.critical_temperature_exit =
2375 cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);
2376
2377 ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
2378 sizeof(adv_cmd), &adv_cmd);
2379 if (ret)
2380 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2381 else
2382 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
2383 "succeeded, "
2384 "critical temperature enter is %d,"
2385 "exit is %d\n",
2386 priv->hw_params.ct_kill_threshold,
2387 priv->hw_params.ct_kill_exit_threshold);
2388 } else {
2389 cmd.critical_temperature_R =
2390 cpu_to_le32(priv->hw_params.ct_kill_threshold);
2391
2392 ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
2393 sizeof(cmd), &cmd);
2394 if (ret)
2395 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2396 else
2397 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
2398 "succeeded, "
2399 "critical temperature is %d\n",
2400 priv->hw_params.ct_kill_threshold);
2401 }
2402}
2403
Shanyu Zhao6d6a1af2010-09-14 18:13:31 -07002404static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
2405{
2406 struct iwl_calib_cfg_cmd calib_cfg_cmd;
2407 struct iwl_host_cmd cmd = {
2408 .id = CALIBRATION_CFG_CMD,
2409 .len = sizeof(struct iwl_calib_cfg_cmd),
2410 .data = &calib_cfg_cmd,
2411 };
2412
2413 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
2414 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002415 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
Shanyu Zhao6d6a1af2010-09-14 18:13:31 -07002416
2417 return iwl_send_cmd(priv, &cmd);
2418}
2419
2420
Zhu Yib481de92007-09-25 17:54:57 -07002421/**
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08002422 * iwl_alive_start - called after REPLY_ALIVE notification received
Zhu Yib481de92007-09-25 17:54:57 -07002423 * from protocol/runtime uCode (initialization uCode's
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08002424 * Alive gets handled by iwl_init_alive_start()).
Zhu Yib481de92007-09-25 17:54:57 -07002425 */
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08002426static void iwl_alive_start(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -07002427{
Tomas Winkler57aab752008-04-14 21:16:03 -07002428 int ret = 0;
Johannes Berg246ed352010-08-23 10:46:32 +02002429 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
Zhu Yib481de92007-09-25 17:54:57 -07002430
Tomas Winklere1623442009-01-27 14:27:56 -08002431 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
Zhu Yib481de92007-09-25 17:54:57 -07002432
Zhu Yib481de92007-09-25 17:54:57 -07002433 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2434 * This is a paranoid check, because we would not have gotten the
2435 * "runtime" alive if code weren't properly loaded. */
Emmanuel Grumbachb0692f22008-04-24 11:55:18 -07002436 if (iwl_verify_ucode(priv)) {
Zhu Yib481de92007-09-25 17:54:57 -07002437 /* Runtime instruction load was bad;
2438 * take it all the way back down so we can try again */
Tomas Winklere1623442009-01-27 14:27:56 -08002439 IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
Zhu Yib481de92007-09-25 17:54:57 -07002440 goto restart;
2441 }
2442
Tomas Winkler57aab752008-04-14 21:16:03 -07002443 ret = priv->cfg->ops->lib->alive_notify(priv);
2444 if (ret) {
Winkler, Tomas39aadf82008-12-19 10:37:32 +08002445 IWL_WARN(priv,
2446 "Could not complete ALIVE transition [ntf]: %d\n", ret);
Zhu Yib481de92007-09-25 17:54:57 -07002447 goto restart;
2448 }
2449
Shanyu Zhao6d6a1af2010-09-14 18:13:31 -07002450
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002451 /* After the ALIVE response, we can send host commands to the uCode */
Zhu Yib481de92007-09-25 17:54:57 -07002452 set_bit(STATUS_ALIVE, &priv->status);
2453
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +01002454 /* Enable watchdog to monitor the driver tx queues */
2455 iwl_setup_watchdog(priv);
Wey-Yi Guyb74e31a2010-03-01 17:23:50 -08002456
Tomas Winklerfee12472008-04-03 16:05:21 -07002457 if (iwl_is_rfkill(priv))
Zhu Yib481de92007-09-25 17:54:57 -07002458 return;
2459
Wey-Yi Guybc795df2010-10-11 14:24:05 -07002460 /* download priority table before any calibration request */
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002461 if (priv->cfg->bt_params &&
2462 priv->cfg->bt_params->advanced_bt_coexist) {
Wey-Yi Guyf7322f82010-08-23 15:24:49 -07002463 /* Configure Bluetooth device coexistence support */
2464 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
2465 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
2466 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
2467 priv->cfg->ops->hcmd->send_bt_config(priv);
2468 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
Wey-Yi Guya5901cb2010-09-23 09:56:51 -07002469 iwlagn_send_prio_tbl(priv);
Wey-Yi Guyf7322f82010-08-23 15:24:49 -07002470
2471 /* FIXME: w/a to force change uCode BT state machine */
2472 iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
2473 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
2474 iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
2475 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
2476 }
Wey-Yi Guybc795df2010-10-11 14:24:05 -07002477 if (priv->hw_params.calib_rt_cfg)
2478 iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg);
2479
Johannes Berg36d68252008-05-15 12:55:26 +02002480 ieee80211_wake_queues(priv->hw);
Zhu Yib481de92007-09-25 17:54:57 -07002481
Johannes Berg470ab2d2010-01-21 11:23:30 -08002482 priv->active_rate = IWL_RATES_MASK;
Zhu Yib481de92007-09-25 17:54:57 -07002483
Wey-Yi Guy2f748de2009-09-17 10:43:51 -07002484 /* Configure Tx antenna selection based on H/W config */
2485 if (priv->cfg->ops->hcmd->set_tx_ant)
2486 priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant);
2487
Johannes Berg246ed352010-08-23 10:46:32 +02002488 if (iwl_is_associated_ctx(ctx)) {
Gregory Greenmanc1adf9f2008-05-15 13:53:59 +08002489 struct iwl_rxon_cmd *active_rxon =
Johannes Berg246ed352010-08-23 10:46:32 +02002490 (struct iwl_rxon_cmd *)&ctx->active;
Mohamed Abbas019fb972009-03-17 21:59:18 -07002491 /* apply any changes in staging */
Johannes Berg246ed352010-08-23 10:46:32 +02002492 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
Zhu Yib481de92007-09-25 17:54:57 -07002493 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2494 } else {
Johannes Bergd0fe4782010-08-23 10:46:58 +02002495 struct iwl_rxon_context *tmp;
Zhu Yib481de92007-09-25 17:54:57 -07002496 /* Initialize our rx_config data */
Johannes Bergd0fe4782010-08-23 10:46:58 +02002497 for_each_context(priv, tmp)
2498 iwl_connection_init_rx_config(priv, tmp);
Abhijeet Kolekar45823532009-04-08 11:26:44 -07002499
2500 if (priv->cfg->ops->hcmd->set_rxon_chain)
Johannes Berg246ed352010-08-23 10:46:32 +02002501 priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
Zhu Yib481de92007-09-25 17:54:57 -07002502 }
2503
Wey-Yi Guy73b78a22011-02-11 08:13:14 -08002504 if (!priv->cfg->bt_params || (priv->cfg->bt_params &&
2505 !priv->cfg->bt_params->advanced_bt_coexist)) {
2506 /*
2507 * default is 2-wire BT coexexistence support
2508 */
Wey-Yi Guyaeb4a2e2010-08-23 07:57:05 -07002509 priv->cfg->ops->hcmd->send_bt_config(priv);
2510 }
Zhu Yib481de92007-09-25 17:54:57 -07002511
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08002512 iwl_reset_run_time_calib(priv);
2513
Wey-Yi Guy9e2e7422010-11-12 13:52:37 -08002514 set_bit(STATUS_READY, &priv->status);
2515
Zhu Yib481de92007-09-25 17:54:57 -07002516 /* Configure the adapter for unassociated operation */
Johannes Berg246ed352010-08-23 10:46:32 +02002517 iwlcore_commit_rxon(priv, ctx);
Zhu Yib481de92007-09-25 17:54:57 -07002518
2519 /* At this point, the NIC is initialized and operational */
Emmanuel Grumbach47f4a582008-06-12 09:47:13 +08002520 iwl_rf_kill_ct_config(priv);
Zhu Yi5a66926a2008-01-14 17:46:18 -08002521
Tomas Winklere1623442009-01-27 14:27:56 -08002522 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
Zhu Yi5a66926a2008-01-14 17:46:18 -08002523 wake_up_interruptible(&priv->wait_command_queue);
Zhu Yib481de92007-09-25 17:54:57 -07002524
Johannes Berge312c242009-08-07 15:41:51 -07002525 iwl_power_update_mode(priv, true);
Reinette Chatre7e246192010-02-18 22:58:32 -08002526 IWL_DEBUG_INFO(priv, "Updated power mode\n");
2527
Assaf Kraussc46fbef2008-06-12 09:47:05 +08002528
Zhu Yib481de92007-09-25 17:54:57 -07002529 return;
2530
2531 restart:
2532 queue_work(priv->workqueue, &priv->restart);
2533}
2534
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08002535static void iwl_cancel_deferred_work(struct iwl_priv *priv);
Zhu Yib481de92007-09-25 17:54:57 -07002536
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002537static void __iwl_down(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -07002538{
2539 unsigned long flags;
2540 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
Zhu Yib481de92007-09-25 17:54:57 -07002541
Tomas Winklere1623442009-01-27 14:27:56 -08002542 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
Zhu Yib481de92007-09-25 17:54:57 -07002543
Stanislaw Gruszkad745d472010-09-13 14:46:35 +02002544 iwl_scan_cancel_timeout(priv, 200);
2545
2546 exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
Zhu Yib481de92007-09-25 17:54:57 -07002547
Stanislaw Gruszkab62177a2010-08-20 15:23:47 +02002548 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
2549 * to prevent rearm timer */
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +01002550 del_timer_sync(&priv->watchdog);
Stanislaw Gruszkab62177a2010-08-20 15:23:47 +02002551
Johannes Bergdcef7322010-08-27 08:55:52 -07002552 iwl_clear_ucode_stations(priv, NULL);
Johannes Berga194e322010-08-27 08:53:46 -07002553 iwl_dealloc_bcast_stations(priv);
Johannes Bergdb125c72010-05-07 01:49:15 -07002554 iwl_clear_driver_stations(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002555
Johannes Berga1174132010-08-23 07:56:59 -07002556 /* reset BT coex data */
Wey-Yi Guyda5dbb92010-08-23 07:57:13 -07002557 priv->bt_status = 0;
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002558 if (priv->cfg->bt_params)
2559 priv->bt_traffic_load =
2560 priv->cfg->bt_params->bt_init_traffic_load;
2561 else
2562 priv->bt_traffic_load = 0;
Wey-Yi Guybee008b2010-08-23 07:57:04 -07002563 priv->bt_full_concurrent = false;
2564 priv->bt_ci_compliance = 0;
Johannes Berga1174132010-08-23 07:56:59 -07002565
Zhu Yib481de92007-09-25 17:54:57 -07002566 /* Unblock any waiting calls */
2567 wake_up_interruptible_all(&priv->wait_command_queue);
2568
Zhu Yib481de92007-09-25 17:54:57 -07002569 /* Wipe out the EXIT_PENDING status bit if we are not actually
2570 * exiting the module */
2571 if (!exit_pending)
2572 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2573
2574 /* stop and reset the on-board processor */
Tomas Winkler3395f6e2008-03-25 16:33:37 -07002575 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
Zhu Yib481de92007-09-25 17:54:57 -07002576
2577 /* tell the device to stop sending interrupts */
Mohamed Abbas0359fac2008-03-28 16:21:08 -07002578 spin_lock_irqsave(&priv->lock, flags);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002579 iwl_disable_interrupts(priv);
Mohamed Abbas0359fac2008-03-28 16:21:08 -07002580 spin_unlock_irqrestore(&priv->lock, flags);
2581 iwl_synchronize_irq(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002582
2583 if (priv->mac80211_registered)
2584 ieee80211_stop_queues(priv->hw);
2585
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002586 /* If we have not previously called iwl_init() then
Johannes Berga60e77e2009-06-04 18:26:06 +02002587 * clear all bits but the RF Kill bit and return */
Tomas Winklerfee12472008-04-03 16:05:21 -07002588 if (!iwl_is_init(priv)) {
Zhu Yib481de92007-09-25 17:54:57 -07002589 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2590 STATUS_RF_KILL_HW |
Reinette Chatre97888642008-02-06 11:20:38 -08002591 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2592 STATUS_GEO_CONFIGURED |
Mohamed Abbas052ec3f2008-06-30 17:23:15 +08002593 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2594 STATUS_EXIT_PENDING;
Zhu Yib481de92007-09-25 17:54:57 -07002595 goto exit;
2596 }
2597
Wey-Yi Guy6da3a132009-03-26 10:14:08 -07002598 /* ...otherwise clear out all the status bits but the RF Kill
Johannes Berga60e77e2009-06-04 18:26:06 +02002599 * bit and continue taking the NIC down. */
Zhu Yib481de92007-09-25 17:54:57 -07002600 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2601 STATUS_RF_KILL_HW |
Reinette Chatre97888642008-02-06 11:20:38 -08002602 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2603 STATUS_GEO_CONFIGURED |
Zhu Yib481de92007-09-25 17:54:57 -07002604 test_bit(STATUS_FW_ERROR, &priv->status) <<
Mohamed Abbas052ec3f2008-06-30 17:23:15 +08002605 STATUS_FW_ERROR |
2606 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2607 STATUS_EXIT_PENDING;
Zhu Yib481de92007-09-25 17:54:57 -07002608
Mohamed Abbasef850d72009-05-22 11:01:50 -07002609 /* device going down, Stop using ICT table */
Wey-Yi Guye39fdee2010-11-10 09:56:40 -08002610 if (priv->cfg->ops->lib->isr_ops.disable)
2611 priv->cfg->ops->lib->isr_ops.disable(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002612
Wey-Yi Guy74bcdb32010-03-17 13:34:34 -07002613 iwlagn_txq_ctx_stop(priv);
Wey-Yi Guy54b81552010-03-17 13:34:35 -07002614 iwlagn_rxq_stop(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002615
Ben Cahill309e7312009-11-06 14:53:03 -08002616 /* Power-down device's busmaster DMA clocks */
2617 iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
Zhu Yib481de92007-09-25 17:54:57 -07002618 udelay(5);
2619
Ben Cahill309e7312009-11-06 14:53:03 -08002620 /* Make sure (redundant) we've released our request to stay awake */
2621 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
2622
Ben Cahill4d2ccdb2009-10-09 13:20:20 -07002623 /* Stop the device, and put it in low power state */
Johannes Berg14e8e4a2010-09-22 18:02:10 +02002624 iwl_apm_stop(priv);
Ben Cahill4d2ccdb2009-10-09 13:20:20 -07002625
Zhu Yib481de92007-09-25 17:54:57 -07002626 exit:
Tomas Winkler885ba202008-05-29 16:34:55 +08002627 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
Zhu Yib481de92007-09-25 17:54:57 -07002628
Johannes Berg77834542010-10-04 05:50:36 -07002629 dev_kfree_skb(priv->beacon_skb);
Johannes Berg12e934d2010-10-04 05:50:06 -07002630 priv->beacon_skb = NULL;
Zhu Yib481de92007-09-25 17:54:57 -07002631
2632 /* clear out any free frames */
Tomas Winklerfcab4232008-05-15 13:54:01 +08002633 iwl_clear_free_frames(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002634}
2635
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002636static void iwl_down(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -07002637{
2638 mutex_lock(&priv->mutex);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002639 __iwl_down(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002640 mutex_unlock(&priv->mutex);
Zhu Yib24d22b2007-12-19 13:59:52 +08002641
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08002642 iwl_cancel_deferred_work(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002643}
2644
Mohamed Abbas086ed112009-05-22 11:01:54 -07002645#define HW_READY_TIMEOUT (50)
2646
2647static int iwl_set_hw_ready(struct iwl_priv *priv)
2648{
2649 int ret = 0;
2650
2651 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
2652 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY);
2653
2654 /* See if we got it */
2655 ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
2656 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
2657 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
2658 HW_READY_TIMEOUT);
2659 if (ret != -ETIMEDOUT)
2660 priv->hw_ready = true;
2661 else
2662 priv->hw_ready = false;
2663
2664 IWL_DEBUG_INFO(priv, "hardware %s\n",
2665 (priv->hw_ready == 1) ? "ready" : "not ready");
2666 return ret;
2667}
2668
2669static int iwl_prepare_card_hw(struct iwl_priv *priv)
2670{
2671 int ret = 0;
2672
Frans Pop91dd6c22010-03-24 14:19:58 -07002673 IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter\n");
Mohamed Abbas086ed112009-05-22 11:01:54 -07002674
Mohamed Abbas3354a0f2009-06-19 13:52:41 -07002675 ret = iwl_set_hw_ready(priv);
2676 if (priv->hw_ready)
2677 return ret;
2678
2679 /* If HW is not ready, prepare the conditions to check again */
Mohamed Abbas086ed112009-05-22 11:01:54 -07002680 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
2681 CSR_HW_IF_CONFIG_REG_PREPARE);
2682
2683 ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
2684 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
2685 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);
2686
Mohamed Abbas3354a0f2009-06-19 13:52:41 -07002687 /* HW should be ready by now, check again. */
Mohamed Abbas086ed112009-05-22 11:01:54 -07002688 if (ret != -ETIMEDOUT)
2689 iwl_set_hw_ready(priv);
2690
2691 return ret;
2692}
2693
Zhu Yib481de92007-09-25 17:54:57 -07002694#define MAX_HW_RESTARTS 5
2695
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002696static int __iwl_up(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -07002697{
Johannes Berga194e322010-08-27 08:53:46 -07002698 struct iwl_rxon_context *ctx;
Tomas Winkler57aab752008-04-14 21:16:03 -07002699 int i;
2700 int ret;
Zhu Yib481de92007-09-25 17:54:57 -07002701
2702 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
Winkler, Tomas39aadf82008-12-19 10:37:32 +08002703 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
Zhu Yib481de92007-09-25 17:54:57 -07002704 return -EIO;
2705 }
2706
Reinette Chatree903fbd2008-01-30 22:05:15 -08002707 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08002708 IWL_ERR(priv, "ucode not available for device bringup\n");
Reinette Chatree903fbd2008-01-30 22:05:15 -08002709 return -EIO;
2710 }
2711
Johannes Berga194e322010-08-27 08:53:46 -07002712 for_each_context(priv, ctx) {
Johannes Berga30e3112010-09-22 18:02:01 +02002713 ret = iwlagn_alloc_bcast_station(priv, ctx);
Johannes Berga194e322010-08-27 08:53:46 -07002714 if (ret) {
2715 iwl_dealloc_bcast_stations(priv);
2716 return ret;
2717 }
2718 }
Johannes Berg2c810cc2010-04-29 00:53:29 -07002719
Mohamed Abbas086ed112009-05-22 11:01:54 -07002720 iwl_prepare_card_hw(priv);
2721
2722 if (!priv->hw_ready) {
2723 IWL_WARN(priv, "Exit HW not ready\n");
2724 return -EIO;
2725 }
2726
Zhu Yie655b9f2008-01-24 02:19:38 -08002727 /* If platform's RF_KILL switch is NOT set to KILL */
Tomas Winklerc1842d62008-08-04 16:00:43 +08002728 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
Zhu Yie655b9f2008-01-24 02:19:38 -08002729 clear_bit(STATUS_RF_KILL_HW, &priv->status);
Emmanuel Grumbach3bff19c2008-06-30 17:23:19 +08002730 else
Zhu Yie655b9f2008-01-24 02:19:38 -08002731 set_bit(STATUS_RF_KILL_HW, &priv->status);
Emmanuel Grumbach3bff19c2008-06-30 17:23:19 +08002732
Tomas Winklerc1842d62008-08-04 16:00:43 +08002733 if (iwl_is_rfkill(priv)) {
Johannes Berga60e77e2009-06-04 18:26:06 +02002734 wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);
2735
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002736 iwl_enable_interrupts(priv);
Johannes Berga60e77e2009-06-04 18:26:06 +02002737 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
Tomas Winklerc1842d62008-08-04 16:00:43 +08002738 return 0;
Zhu Yib481de92007-09-25 17:54:57 -07002739 }
2740
Tomas Winkler3395f6e2008-03-25 16:33:37 -07002741 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
Zhu Yib481de92007-09-25 17:54:57 -07002742
Johannes Berg13bb9482010-08-23 10:46:33 +02002743 /* must be initialised before iwl_hw_nic_init */
Johannes Berg751ca302010-08-23 10:46:34 +02002744 if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))
2745 priv->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
2746 else
2747 priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
Johannes Berg13bb9482010-08-23 10:46:33 +02002748
Wey-Yi Guy74bcdb32010-03-17 13:34:34 -07002749 ret = iwlagn_hw_nic_init(priv);
Tomas Winkler57aab752008-04-14 21:16:03 -07002750 if (ret) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08002751 IWL_ERR(priv, "Unable to init nic\n");
Tomas Winkler57aab752008-04-14 21:16:03 -07002752 return ret;
Zhu Yib481de92007-09-25 17:54:57 -07002753 }
2754
2755 /* make sure rfkill handshake bits are cleared */
Tomas Winkler3395f6e2008-03-25 16:33:37 -07002756 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2757 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
Zhu Yib481de92007-09-25 17:54:57 -07002758 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2759
2760 /* clear (again), then enable host interrupts */
Tomas Winkler3395f6e2008-03-25 16:33:37 -07002761 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002762 iwl_enable_interrupts(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002763
2764 /* really make sure rfkill handshake bits are cleared */
Tomas Winkler3395f6e2008-03-25 16:33:37 -07002765 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2766 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
Zhu Yib481de92007-09-25 17:54:57 -07002767
2768 /* Copy original ucode data image from disk into backup cache.
2769 * This will be used to initialize the on-board processor's
2770 * data SRAM for a clean start when the runtime program first loads. */
2771 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
Zhu Yi5a66926a2008-01-14 17:46:18 -08002772 priv->ucode_data.len);
Zhu Yib481de92007-09-25 17:54:57 -07002773
Zhu Yib481de92007-09-25 17:54:57 -07002774 for (i = 0; i < MAX_HW_RESTARTS; i++) {
2775
Zhu Yib481de92007-09-25 17:54:57 -07002776 /* load bootstrap state machine,
2777 * load bootstrap program into processor's memory,
2778 * prepare to load the "initialize" uCode */
Tomas Winkler57aab752008-04-14 21:16:03 -07002779 ret = priv->cfg->ops->lib->load_ucode(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002780
Tomas Winkler57aab752008-04-14 21:16:03 -07002781 if (ret) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08002782 IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n",
2783 ret);
Zhu Yib481de92007-09-25 17:54:57 -07002784 continue;
2785 }
2786
2787 /* start card; "initialize" will load runtime ucode */
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002788 iwl_nic_start(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002789
Tomas Winklere1623442009-01-27 14:27:56 -08002790 IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
Zhu Yib481de92007-09-25 17:54:57 -07002791
2792 return 0;
2793 }
2794
2795 set_bit(STATUS_EXIT_PENDING, &priv->status);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002796 __iwl_down(priv);
Mohamed Abbas64e72c3e2008-06-12 09:47:03 +08002797 clear_bit(STATUS_EXIT_PENDING, &priv->status);
Zhu Yib481de92007-09-25 17:54:57 -07002798
2799 /* tried to restart and config the device for as long as our
2800 * patience could withstand */
Winkler, Tomas15b16872008-12-19 10:37:33 +08002801 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
Zhu Yib481de92007-09-25 17:54:57 -07002802 return -EIO;
2803}
2804
2805
2806/*****************************************************************************
2807 *
2808 * Workqueue callbacks
2809 *
2810 *****************************************************************************/
2811
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08002812static void iwl_bg_init_alive_start(struct work_struct *data)
Zhu Yib481de92007-09-25 17:54:57 -07002813{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07002814 struct iwl_priv *priv =
2815 container_of(data, struct iwl_priv, init_alive_start.work);
Zhu Yib481de92007-09-25 17:54:57 -07002816
2817 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2818 return;
2819
2820 mutex_lock(&priv->mutex);
Emmanuel Grumbachf3ccc082008-05-05 10:22:45 +08002821 priv->cfg->ops->lib->init_alive_start(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002822 mutex_unlock(&priv->mutex);
2823}
2824
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08002825static void iwl_bg_alive_start(struct work_struct *data)
Zhu Yib481de92007-09-25 17:54:57 -07002826{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07002827 struct iwl_priv *priv =
2828 container_of(data, struct iwl_priv, alive_start.work);
Zhu Yib481de92007-09-25 17:54:57 -07002829
2830 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2831 return;
2832
Mohamed Abbas258c44a2009-06-03 11:44:10 -07002833 /* enable dram interrupt */
Wey-Yi Guye39fdee2010-11-10 09:56:40 -08002834 if (priv->cfg->ops->lib->isr_ops.reset)
2835 priv->cfg->ops->lib->isr_ops.reset(priv);
Mohamed Abbas258c44a2009-06-03 11:44:10 -07002836
Zhu Yib481de92007-09-25 17:54:57 -07002837 mutex_lock(&priv->mutex);
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08002838 iwl_alive_start(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002839 mutex_unlock(&priv->mutex);
2840}
2841
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +08002842static void iwl_bg_run_time_calib_work(struct work_struct *work)
2843{
2844 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2845 run_time_calib_work);
2846
2847 mutex_lock(&priv->mutex);
2848
2849 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
2850 test_bit(STATUS_SCANNING, &priv->status)) {
2851 mutex_unlock(&priv->mutex);
2852 return;
2853 }
2854
2855 if (priv->start_calib) {
Stanislaw Gruszka9f60e7e2011-01-28 16:47:51 +01002856 if (iwl_bt_statistics(priv)) {
Wey-Yi Guy7980fba2010-07-14 08:08:57 -07002857 iwl_chain_noise_calibration(priv,
2858 (void *)&priv->_agn.statistics_bt);
2859 iwl_sensitivity_calibration(priv,
2860 (void *)&priv->_agn.statistics_bt);
2861 } else {
2862 iwl_chain_noise_calibration(priv,
2863 (void *)&priv->_agn.statistics);
2864 iwl_sensitivity_calibration(priv,
2865 (void *)&priv->_agn.statistics);
2866 }
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +08002867 }
2868
2869 mutex_unlock(&priv->mutex);
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +08002870}
2871
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002872static void iwl_bg_restart(struct work_struct *data)
Zhu Yib481de92007-09-25 17:54:57 -07002873{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07002874 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
Zhu Yib481de92007-09-25 17:54:57 -07002875
2876 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2877 return;
2878
Johannes Berg19cc1082009-05-08 13:44:36 -07002879 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
Johannes Berg8bd413e2010-08-23 10:46:40 +02002880 struct iwl_rxon_context *ctx;
Wey-Yi Guy187bc4f2011-01-27 13:01:33 -08002881 bool bt_full_concurrent;
Wey-Yi Guybee008b2010-08-23 07:57:04 -07002882 u8 bt_ci_compliance;
Johannes Berg511b0822010-08-23 07:57:01 -07002883 u8 bt_load;
Wey-Yi Guyda5dbb92010-08-23 07:57:13 -07002884 u8 bt_status;
Johannes Berg511b0822010-08-23 07:57:01 -07002885
Johannes Berg19cc1082009-05-08 13:44:36 -07002886 mutex_lock(&priv->mutex);
Johannes Berg8bd413e2010-08-23 10:46:40 +02002887 for_each_context(priv, ctx)
2888 ctx->vif = NULL;
Johannes Berg19cc1082009-05-08 13:44:36 -07002889 priv->is_open = 0;
Johannes Berg511b0822010-08-23 07:57:01 -07002890
2891 /*
2892 * __iwl_down() will clear the BT status variables,
2893 * which is correct, but when we restart we really
2894 * want to keep them so restore them afterwards.
2895 *
2896 * The restart process will later pick them up and
2897 * re-configure the hw when we reconfigure the BT
2898 * command.
2899 */
Wey-Yi Guybee008b2010-08-23 07:57:04 -07002900 bt_full_concurrent = priv->bt_full_concurrent;
2901 bt_ci_compliance = priv->bt_ci_compliance;
Johannes Berg511b0822010-08-23 07:57:01 -07002902 bt_load = priv->bt_traffic_load;
Wey-Yi Guyda5dbb92010-08-23 07:57:13 -07002903 bt_status = priv->bt_status;
Johannes Berg511b0822010-08-23 07:57:01 -07002904
Johannes Berga1174132010-08-23 07:56:59 -07002905 __iwl_down(priv);
Johannes Berg511b0822010-08-23 07:57:01 -07002906
Wey-Yi Guybee008b2010-08-23 07:57:04 -07002907 priv->bt_full_concurrent = bt_full_concurrent;
2908 priv->bt_ci_compliance = bt_ci_compliance;
Johannes Berg511b0822010-08-23 07:57:01 -07002909 priv->bt_traffic_load = bt_load;
Wey-Yi Guyda5dbb92010-08-23 07:57:13 -07002910 priv->bt_status = bt_status;
Johannes Berg511b0822010-08-23 07:57:01 -07002911
Johannes Berg19cc1082009-05-08 13:44:36 -07002912 mutex_unlock(&priv->mutex);
Johannes Berga1174132010-08-23 07:56:59 -07002913 iwl_cancel_deferred_work(priv);
Johannes Berg19cc1082009-05-08 13:44:36 -07002914 ieee80211_restart_hw(priv->hw);
2915 } else {
2916 iwl_down(priv);
Johannes Berg80676512010-01-21 06:07:17 -08002917
2918 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2919 return;
2920
2921 mutex_lock(&priv->mutex);
2922 __iwl_up(priv);
2923 mutex_unlock(&priv->mutex);
Johannes Berg19cc1082009-05-08 13:44:36 -07002924 }
Zhu Yib481de92007-09-25 17:54:57 -07002925}
2926
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07002927static void iwl_bg_rx_replenish(struct work_struct *data)
Zhu Yib481de92007-09-25 17:54:57 -07002928{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07002929 struct iwl_priv *priv =
2930 container_of(data, struct iwl_priv, rx_replenish);
Zhu Yib481de92007-09-25 17:54:57 -07002931
2932 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2933 return;
2934
2935 mutex_lock(&priv->mutex);
Wey-Yi Guy54b81552010-03-17 13:34:35 -07002936 iwlagn_rx_replenish(priv);
Zhu Yib481de92007-09-25 17:54:57 -07002937 mutex_unlock(&priv->mutex);
2938}
2939
Zhu Yib481de92007-09-25 17:54:57 -07002940/*****************************************************************************
2941 *
2942 * mac80211 entry point functions
2943 *
2944 *****************************************************************************/
2945
Emmanuel Grumbach154b25c2008-06-30 17:23:24 +08002946#define UCODE_READY_TIMEOUT (4 * HZ)
Zhu Yi5a66926a2008-01-14 17:46:18 -08002947
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002948/*
2949 * Not a mac80211 entry point function, but it fits in with all the
2950 * other mac80211 functions grouped here.
2951 */
Johannes Bergdd7a2502010-04-28 23:33:10 -07002952static int iwl_mac_setup_register(struct iwl_priv *priv,
2953 struct iwlagn_ucode_capabilities *capa)
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002954{
2955 int ret;
2956 struct ieee80211_hw *hw = priv->hw;
Johannes Bergd0fe4782010-08-23 10:46:58 +02002957 struct iwl_rxon_context *ctx;
2958
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002959 hw->rate_control_algorithm = "iwl-agn-rs";
2960
2961 /* Tell mac80211 our characteristics */
2962 hw->flags = IEEE80211_HW_SIGNAL_DBM |
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002963 IEEE80211_HW_AMPDU_AGGREGATION |
Johannes Berg2491fa42010-08-23 10:46:52 +02002964 IEEE80211_HW_NEED_DTIM_PERIOD |
Johannes Berg6fb55112010-11-16 11:55:02 -08002965 IEEE80211_HW_SPECTRUM_MGMT |
2966 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002967
Johannes Berg9b768832011-01-19 02:54:18 -08002968 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2969
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002970 if (!priv->cfg->base_params->broken_powersave)
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002971 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
2972 IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
2973
Johannes Bergba37a3d2009-12-10 14:37:27 -08002974 if (priv->cfg->sku & IWL_SKU_N)
2975 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2976 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
2977
Reinette Chatre8d9698b2009-10-16 14:25:55 -07002978 hw->sta_data_size = sizeof(struct iwl_station_priv);
Johannes Bergfd1af152010-04-30 11:30:43 -07002979 hw->vif_data_size = sizeof(struct iwl_vif_priv);
2980
Johannes Bergd0fe4782010-08-23 10:46:58 +02002981 for_each_context(priv, ctx) {
2982 hw->wiphy->interface_modes |= ctx->interface_modes;
2983 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
2984 }
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002985
Johannes Berg9b9190d2011-01-06 08:07:10 -08002986 hw->wiphy->max_remain_on_channel_duration = 1000;
2987
Reinette Chatref6c8f152010-03-12 11:13:26 -08002988 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
Johannes Berg274102a2011-01-18 04:44:03 -08002989 WIPHY_FLAG_DISABLE_BEACON_HINTS |
2990 WIPHY_FLAG_IBSS_RSN;
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002991
2992 /*
2993 * For now, disable PS by default because it affects
2994 * RX performance significantly.
2995 */
Johannes Berg5be83de2009-11-19 00:56:28 +01002996 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002997
Reinette Chatre1382c712010-02-25 10:02:19 -08002998 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07002999 /* we create the 802.11 header and a zero-length SSID element */
Johannes Bergdd7a2502010-04-28 23:33:10 -07003000 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07003001
3002 /* Default value; 4 EDCA QOS priorities */
3003 hw->queues = 4;
3004
3005 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
3006
3007 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
3008 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
3009 &priv->bands[IEEE80211_BAND_2GHZ];
3010 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
3011 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
3012 &priv->bands[IEEE80211_BAND_5GHZ];
3013
Wey-Yi Guy5ed540a2011-01-21 15:26:39 -08003014 iwl_leds_init(priv);
3015
Reinette Chatref0b6e2e2009-10-16 14:25:53 -07003016 ret = ieee80211_register_hw(priv->hw);
3017 if (ret) {
3018 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
3019 return ret;
3020 }
3021 priv->mac80211_registered = 1;
3022
3023 return 0;
3024}
3025
3026
Johannes Berg2295c662010-10-23 09:15:41 -07003027int iwlagn_mac_start(struct ieee80211_hw *hw)
Zhu Yib481de92007-09-25 17:54:57 -07003028{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07003029 struct iwl_priv *priv = hw->priv;
Zhu Yi5a66926a2008-01-14 17:46:18 -08003030 int ret;
Zhu Yib481de92007-09-25 17:54:57 -07003031
Tomas Winklere1623442009-01-27 14:27:56 -08003032 IWL_DEBUG_MAC80211(priv, "enter\n");
Zhu Yib481de92007-09-25 17:54:57 -07003033
3034 /* we should be verifying the device is ready to be opened */
3035 mutex_lock(&priv->mutex);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003036 ret = __iwl_up(priv);
Zhu Yib481de92007-09-25 17:54:57 -07003037 mutex_unlock(&priv->mutex);
Zhu Yi5a66926a2008-01-14 17:46:18 -08003038
Zhu Yie655b9f2008-01-24 02:19:38 -08003039 if (ret)
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01003040 return ret;
Zhu Yie655b9f2008-01-24 02:19:38 -08003041
Tomas Winklerc1842d62008-08-04 16:00:43 +08003042 if (iwl_is_rfkill(priv))
3043 goto out;
3044
Tomas Winklere1623442009-01-27 14:27:56 -08003045 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
Zhu Yie655b9f2008-01-24 02:19:38 -08003046
Ron Rindjunskyfe9b6b72008-05-29 16:35:06 +08003047 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
Zhu Yi5a66926a2008-01-14 17:46:18 -08003048 * mac80211 will not be run successfully. */
Emmanuel Grumbach154b25c2008-06-30 17:23:24 +08003049 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
3050 test_bit(STATUS_READY, &priv->status),
3051 UCODE_READY_TIMEOUT);
3052 if (!ret) {
3053 if (!test_bit(STATUS_READY, &priv->status)) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08003054 IWL_ERR(priv, "START_ALIVE timeout after %dms.\n",
Emmanuel Grumbach154b25c2008-06-30 17:23:24 +08003055 jiffies_to_msecs(UCODE_READY_TIMEOUT));
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01003056 return -ETIMEDOUT;
Zhu Yi5a66926a2008-01-14 17:46:18 -08003057 }
Ron Rindjunskyfe9b6b72008-05-29 16:35:06 +08003058 }
Tomas Winkler0a078ff2008-06-30 17:23:26 +08003059
Wey-Yi Guy5ed540a2011-01-21 15:26:39 -08003060 iwlagn_led_enable(priv);
Johannes Berge932a602009-10-02 13:44:03 -07003061
Tomas Winklerc1842d62008-08-04 16:00:43 +08003062out:
Tomas Winkler0a078ff2008-06-30 17:23:26 +08003063 priv->is_open = 1;
Tomas Winklere1623442009-01-27 14:27:56 -08003064 IWL_DEBUG_MAC80211(priv, "leave\n");
Zhu Yib481de92007-09-25 17:54:57 -07003065 return 0;
3066}
3067
Johannes Berg2295c662010-10-23 09:15:41 -07003068void iwlagn_mac_stop(struct ieee80211_hw *hw)
Zhu Yib481de92007-09-25 17:54:57 -07003069{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07003070 struct iwl_priv *priv = hw->priv;
Zhu Yib481de92007-09-25 17:54:57 -07003071
Tomas Winklere1623442009-01-27 14:27:56 -08003072 IWL_DEBUG_MAC80211(priv, "enter\n");
Mohamed Abbas948c1712007-10-25 17:15:45 +08003073
Johannes Berg19cc1082009-05-08 13:44:36 -07003074 if (!priv->is_open)
Zhu Yie655b9f2008-01-24 02:19:38 -08003075 return;
Zhu Yie655b9f2008-01-24 02:19:38 -08003076
Zhu Yib481de92007-09-25 17:54:57 -07003077 priv->is_open = 0;
Zhu Yi5a66926a2008-01-14 17:46:18 -08003078
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003079 iwl_down(priv);
Zhu Yi5a66926a2008-01-14 17:46:18 -08003080
3081 flush_workqueue(priv->workqueue);
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01003082
Stanislaw Gruszka554d1d02010-12-23 12:38:21 +01003083 /* User space software may expect getting rfkill changes
3084 * even if interface is down */
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01003085 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
Stanislaw Gruszka554d1d02010-12-23 12:38:21 +01003086 iwl_enable_rfkill_int(priv);
Mohamed Abbas948c1712007-10-25 17:15:45 +08003087
Tomas Winklere1623442009-01-27 14:27:56 -08003088 IWL_DEBUG_MAC80211(priv, "leave\n");
Zhu Yib481de92007-09-25 17:54:57 -07003089}
3090
Johannes Berg7bb45682011-02-24 14:42:06 +01003091void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
Zhu Yib481de92007-09-25 17:54:57 -07003092{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07003093 struct iwl_priv *priv = hw->priv;
Zhu Yib481de92007-09-25 17:54:57 -07003094
Tomas Winklere1623442009-01-27 14:27:56 -08003095 IWL_DEBUG_MACDUMP(priv, "enter\n");
Zhu Yib481de92007-09-25 17:54:57 -07003096
Tomas Winklere1623442009-01-27 14:27:56 -08003097 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
Johannes Berge039fa42008-05-15 12:55:29 +02003098 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
Zhu Yib481de92007-09-25 17:54:57 -07003099
Wey-Yi Guy74bcdb32010-03-17 13:34:34 -07003100 if (iwlagn_tx_skb(priv, skb))
Zhu Yib481de92007-09-25 17:54:57 -07003101 dev_kfree_skb_any(skb);
3102
Tomas Winklere1623442009-01-27 14:27:56 -08003103 IWL_DEBUG_MACDUMP(priv, "leave\n");
Zhu Yib481de92007-09-25 17:54:57 -07003104}
3105
Johannes Berg2295c662010-10-23 09:15:41 -07003106void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
3107 struct ieee80211_vif *vif,
3108 struct ieee80211_key_conf *keyconf,
3109 struct ieee80211_sta *sta,
3110 u32 iv32, u16 *phase1key)
Zhu Yib481de92007-09-25 17:54:57 -07003111{
Tomas Winkler9f586712008-11-12 13:14:05 -08003112 struct iwl_priv *priv = hw->priv;
Johannes Berga194e322010-08-27 08:53:46 -07003113 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
3114
Tomas Winklere1623442009-01-27 14:27:56 -08003115 IWL_DEBUG_MAC80211(priv, "enter\n");
Emmanuel Grumbachab885f82008-03-20 15:06:43 +02003116
Johannes Berga194e322010-08-27 08:53:46 -07003117 iwl_update_tkip_key(priv, vif_priv->ctx, keyconf, sta,
Johannes Bergb3fbdcf2010-01-21 11:40:47 +01003118 iv32, phase1key);
Emmanuel Grumbachab885f82008-03-20 15:06:43 +02003119
Tomas Winklere1623442009-01-27 14:27:56 -08003120 IWL_DEBUG_MAC80211(priv, "leave\n");
Emmanuel Grumbachab885f82008-03-20 15:06:43 +02003121}
3122
Johannes Berg2295c662010-10-23 09:15:41 -07003123int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3124 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
3125 struct ieee80211_key_conf *key)
Zhu Yib481de92007-09-25 17:54:57 -07003126{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07003127 struct iwl_priv *priv = hw->priv;
Johannes Berga194e322010-08-27 08:53:46 -07003128 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
Johannes Bergc10afb62010-08-23 10:46:43 +02003129 struct iwl_rxon_context *ctx = vif_priv->ctx;
Winkler, Tomas42986792009-01-19 15:30:22 -08003130 int ret;
3131 u8 sta_id;
3132 bool is_default_wep_key = false;
Zhu Yib481de92007-09-25 17:54:57 -07003133
Tomas Winklere1623442009-01-27 14:27:56 -08003134 IWL_DEBUG_MAC80211(priv, "enter\n");
Zhu Yib481de92007-09-25 17:54:57 -07003135
Tomas Winkler90e8e422009-06-19 13:52:42 -07003136 if (priv->cfg->mod_params->sw_crypto) {
Tomas Winklere1623442009-01-27 14:27:56 -08003137 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
Zhu Yib481de92007-09-25 17:54:57 -07003138 return -EOPNOTSUPP;
3139 }
Zhu Yib481de92007-09-25 17:54:57 -07003140
Johannes Berg274102a2011-01-18 04:44:03 -08003141 /*
3142 * To support IBSS RSN, don't program group keys in IBSS, the
3143 * hardware will then not attempt to decrypt the frames.
3144 */
3145 if (vif->type == NL80211_IFTYPE_ADHOC &&
3146 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
3147 return -EOPNOTSUPP;
3148
Johannes Berga194e322010-08-27 08:53:46 -07003149 sta_id = iwl_sta_id_or_broadcast(priv, vif_priv->ctx, sta);
Johannes Berg0af8bca2010-04-30 14:08:00 -07003150 if (sta_id == IWL_INVALID_STATION)
3151 return -EINVAL;
Zhu Yib481de92007-09-25 17:54:57 -07003152
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003153 mutex_lock(&priv->mutex);
Tomas Winkler2a421b92008-06-12 09:47:10 +08003154 iwl_scan_cancel_timeout(priv, 100);
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003155
Johannes Berga90178fa2010-03-30 02:44:16 -07003156 /*
3157 * If we are getting WEP group key and we didn't receive any key mapping
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003158 * so far, we are in legacy wep mode (group key only), otherwise we are
3159 * in 1X mode.
Johannes Berga90178fa2010-03-30 02:44:16 -07003160 * In legacy wep mode, we use another host command to the uCode.
3161 */
Johannes Berg97359d12010-08-10 09:46:38 +02003162 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
3163 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
Johannes Berg54c80672010-08-18 09:35:21 -07003164 !sta) {
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003165 if (cmd == SET_KEY)
Johannes Bergc10afb62010-08-23 10:46:43 +02003166 is_default_wep_key = !ctx->key_mapping_keys;
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003167 else
Emmanuel Grumbachccc038a2008-05-15 13:54:09 +08003168 is_default_wep_key =
3169 (key->hw_key_idx == HW_KEY_DEFAULT);
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003170 }
mabbas052c4b92007-10-25 17:15:43 +08003171
Zhu Yib481de92007-09-25 17:54:57 -07003172 switch (cmd) {
Emmanuel Grumbachdeb09c42008-03-19 16:41:41 -07003173 case SET_KEY:
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003174 if (is_default_wep_key)
Johannes Berg2995baf2010-08-23 10:46:42 +02003175 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
Emmanuel Grumbachdeb09c42008-03-19 16:41:41 -07003176 else
Johannes Berga194e322010-08-27 08:53:46 -07003177 ret = iwl_set_dynamic_key(priv, vif_priv->ctx,
3178 key, sta_id);
Emmanuel Grumbachdeb09c42008-03-19 16:41:41 -07003179
Tomas Winklere1623442009-01-27 14:27:56 -08003180 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
Zhu Yib481de92007-09-25 17:54:57 -07003181 break;
3182 case DISABLE_KEY:
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07003183 if (is_default_wep_key)
Johannes Bergc10afb62010-08-23 10:46:43 +02003184 ret = iwl_remove_default_wep_key(priv, ctx, key);
Emmanuel Grumbachdeb09c42008-03-19 16:41:41 -07003185 else
Johannes Bergc10afb62010-08-23 10:46:43 +02003186 ret = iwl_remove_dynamic_key(priv, ctx, key, sta_id);
Emmanuel Grumbachdeb09c42008-03-19 16:41:41 -07003187
Tomas Winklere1623442009-01-27 14:27:56 -08003188 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
Zhu Yib481de92007-09-25 17:54:57 -07003189 break;
3190 default:
Emmanuel Grumbachdeb09c42008-03-19 16:41:41 -07003191 ret = -EINVAL;
Zhu Yib481de92007-09-25 17:54:57 -07003192 }
3193
Johannes Berg72e15d72010-02-19 11:42:32 -08003194 mutex_unlock(&priv->mutex);
Tomas Winklere1623442009-01-27 14:27:56 -08003195 IWL_DEBUG_MAC80211(priv, "leave\n");
Zhu Yib481de92007-09-25 17:54:57 -07003196
Emmanuel Grumbachdeb09c42008-03-19 16:41:41 -07003197 return ret;
Zhu Yib481de92007-09-25 17:54:57 -07003198}
3199
Johannes Berg2295c662010-10-23 09:15:41 -07003200int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
3201 struct ieee80211_vif *vif,
3202 enum ieee80211_ampdu_mlme_action action,
Johannes Berg0b01f032011-01-18 13:51:05 +01003203 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
3204 u8 buf_size)
Tomas Winklerd783b062008-07-18 13:53:02 +08003205{
3206 struct iwl_priv *priv = hw->priv;
Johannes Berg4620fef2010-06-16 03:30:27 -07003207 int ret = -EINVAL;
Johannes Berg7b090682011-01-19 02:53:54 -08003208 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
Tomas Winklerd783b062008-07-18 13:53:02 +08003209
Tomas Winklere1623442009-01-27 14:27:56 -08003210 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
Johannes Berge1749612008-10-27 15:59:26 -07003211 sta->addr, tid);
Tomas Winklerd783b062008-07-18 13:53:02 +08003212
3213 if (!(priv->cfg->sku & IWL_SKU_N))
3214 return -EACCES;
3215
Johannes Berg4620fef2010-06-16 03:30:27 -07003216 mutex_lock(&priv->mutex);
3217
Tomas Winklerd783b062008-07-18 13:53:02 +08003218 switch (action) {
3219 case IEEE80211_AMPDU_RX_START:
Tomas Winklere1623442009-01-27 14:27:56 -08003220 IWL_DEBUG_HT(priv, "start Rx\n");
Johannes Berg4620fef2010-06-16 03:30:27 -07003221 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
3222 break;
Tomas Winklerd783b062008-07-18 13:53:02 +08003223 case IEEE80211_AMPDU_RX_STOP:
Tomas Winklere1623442009-01-27 14:27:56 -08003224 IWL_DEBUG_HT(priv, "stop Rx\n");
Johannes Berg619753f2010-04-30 11:30:46 -07003225 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
Wey-Yi Guy5c2207c2009-03-17 21:51:43 -07003226 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
Johannes Berg4620fef2010-06-16 03:30:27 -07003227 ret = 0;
3228 break;
Tomas Winklerd783b062008-07-18 13:53:02 +08003229 case IEEE80211_AMPDU_TX_START:
Tomas Winklere1623442009-01-27 14:27:56 -08003230 IWL_DEBUG_HT(priv, "start Tx\n");
Johannes Berg619753f2010-04-30 11:30:46 -07003231 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
Wey-Yi Guyd5a0ffa2010-03-04 13:38:59 -08003232 if (ret == 0) {
3233 priv->_agn.agg_tids_count++;
3234 IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
3235 priv->_agn.agg_tids_count);
3236 }
Johannes Berg4620fef2010-06-16 03:30:27 -07003237 break;
Tomas Winklerd783b062008-07-18 13:53:02 +08003238 case IEEE80211_AMPDU_TX_STOP:
Tomas Winklere1623442009-01-27 14:27:56 -08003239 IWL_DEBUG_HT(priv, "stop Tx\n");
Johannes Berg619753f2010-04-30 11:30:46 -07003240 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
Wey-Yi Guyd5a0ffa2010-03-04 13:38:59 -08003241 if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) {
3242 priv->_agn.agg_tids_count--;
3243 IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
3244 priv->_agn.agg_tids_count);
3245 }
Wey-Yi Guy5c2207c2009-03-17 21:51:43 -07003246 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
Johannes Berg4620fef2010-06-16 03:30:27 -07003247 ret = 0;
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07003248 if (priv->cfg->ht_params &&
3249 priv->cfg->ht_params->use_rts_for_aggregation) {
Johannes Berg94597ab2010-08-09 10:57:02 -07003250 struct iwl_station_priv *sta_priv =
3251 (void *) sta->drv_priv;
3252 /*
3253 * switch off RTS/CTS if it was previously enabled
3254 */
3255
3256 sta_priv->lq_sta.lq.general_params.flags &=
3257 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
Johannes Berg7e6a5882010-08-23 10:46:46 +02003258 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
3259 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
Johannes Berg94597ab2010-08-09 10:57:02 -07003260 }
Johannes Berg4620fef2010-06-16 03:30:27 -07003261 break;
Wey-Yi Guyf0527972010-01-08 10:04:41 -08003262 case IEEE80211_AMPDU_TX_OPERATIONAL:
Johannes Berg7b090682011-01-19 02:53:54 -08003263 /*
3264 * If the limit is 0, then it wasn't initialised yet,
3265 * use the default. We can do that since we take the
3266 * minimum below, and we don't want to go above our
3267 * default due to hardware restrictions.
3268 */
3269 if (sta_priv->max_agg_bufsize == 0)
3270 sta_priv->max_agg_bufsize =
3271 LINK_QUAL_AGG_FRAME_LIMIT_DEF;
3272
3273 /*
3274 * Even though in theory the peer could have different
3275 * aggregation reorder buffer sizes for different sessions,
3276 * our ucode doesn't allow for that and has a global limit
3277 * for each station. Therefore, use the minimum of all the
3278 * aggregation sessions and our default value.
3279 */
3280 sta_priv->max_agg_bufsize =
3281 min(sta_priv->max_agg_bufsize, buf_size);
3282
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07003283 if (priv->cfg->ht_params &&
3284 priv->cfg->ht_params->use_rts_for_aggregation) {
Wey-Yi Guycfecc6b2010-06-18 11:33:15 -07003285 /*
3286 * switch to RTS/CTS if it is the prefer protection
3287 * method for HT traffic
3288 */
Johannes Berg94597ab2010-08-09 10:57:02 -07003289
3290 sta_priv->lq_sta.lq.general_params.flags |=
3291 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
Wey-Yi Guycfecc6b2010-06-18 11:33:15 -07003292 }
Johannes Berg7b090682011-01-19 02:53:54 -08003293
3294 sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
3295 sta_priv->max_agg_bufsize;
3296
3297 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
3298 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
Wey-Yi Guycfecc6b2010-06-18 11:33:15 -07003299 ret = 0;
Tomas Winklerd783b062008-07-18 13:53:02 +08003300 break;
3301 }
Johannes Berg4620fef2010-06-16 03:30:27 -07003302 mutex_unlock(&priv->mutex);
3303
3304 return ret;
Tomas Winklerd783b062008-07-18 13:53:02 +08003305}
Tomas Winkler9f586712008-11-12 13:14:05 -08003306
Johannes Berg2295c662010-10-23 09:15:41 -07003307int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
3308 struct ieee80211_vif *vif,
3309 struct ieee80211_sta *sta)
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003310{
3311 struct iwl_priv *priv = hw->priv;
3312 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
Johannes Berga194e322010-08-27 08:53:46 -07003313 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
Johannes Bergeafdfbd32010-04-29 04:43:04 -07003314 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003315 int ret;
3316 u8 sta_id;
3317
3318 IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
3319 sta->addr);
Reinette Chatreda5ae1c2010-05-28 09:28:39 -07003320 mutex_lock(&priv->mutex);
3321 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
3322 sta->addr);
3323 sta_priv->common.sta_id = IWL_INVALID_STATION;
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003324
3325 atomic_set(&sta_priv->pending_frames, 0);
3326 if (vif->type == NL80211_IFTYPE_AP)
3327 sta_priv->client = true;
3328
Johannes Berga194e322010-08-27 08:53:46 -07003329 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
Johannes Berg238d7812010-08-23 10:46:45 +02003330 is_ap, sta, &sta_id);
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003331 if (ret) {
3332 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
3333 sta->addr, ret);
3334 /* Should we return success if return code is EEXIST ? */
Reinette Chatreda5ae1c2010-05-28 09:28:39 -07003335 mutex_unlock(&priv->mutex);
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003336 return ret;
3337 }
3338
Johannes Bergfd1af152010-04-30 11:30:43 -07003339 sta_priv->common.sta_id = sta_id;
3340
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003341 /* Initialize rate scaling */
Frans Pop91dd6c22010-03-24 14:19:58 -07003342 IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003343 sta->addr);
3344 iwl_rs_rate_init(priv, sta, sta_id);
Reinette Chatreda5ae1c2010-05-28 09:28:39 -07003345 mutex_unlock(&priv->mutex);
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003346
Johannes Bergfd1af152010-04-30 11:30:43 -07003347 return 0;
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003348}
3349
Johannes Berg2295c662010-10-23 09:15:41 -07003350void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
3351 struct ieee80211_channel_switch *ch_switch)
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003352{
3353 struct iwl_priv *priv = hw->priv;
3354 const struct iwl_channel_info *ch_info;
3355 struct ieee80211_conf *conf = &hw->conf;
Shanyu Zhaoaa2dc6b2010-07-28 13:40:39 -07003356 struct ieee80211_channel *channel = ch_switch->channel;
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003357 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
Johannes Berg246ed352010-08-23 10:46:32 +02003358 /*
3359 * MULTI-FIXME
3360 * When we add support for multiple interfaces, we need to
3361 * revisit this. The channel switch command in the device
3362 * only affects the BSS context, but what does that really
3363 * mean? And what if we get a CSA on the second interface?
3364 * This needs a lot of work.
3365 */
3366 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003367 u16 ch;
3368 unsigned long flags = 0;
3369
3370 IWL_DEBUG_MAC80211(priv, "enter\n");
3371
3372 if (iwl_is_rfkill(priv))
3373 goto out_exit;
3374
3375 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
3376 test_bit(STATUS_SCANNING, &priv->status))
3377 goto out_exit;
3378
Johannes Berg246ed352010-08-23 10:46:32 +02003379 if (!iwl_is_associated_ctx(ctx))
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003380 goto out_exit;
3381
3382 /* channel switch in progress */
3383 if (priv->switch_rxon.switch_in_progress == true)
3384 goto out_exit;
3385
3386 mutex_lock(&priv->mutex);
3387 if (priv->cfg->ops->lib->set_channel_switch) {
3388
Shanyu Zhaoaa2dc6b2010-07-28 13:40:39 -07003389 ch = channel->hw_value;
Johannes Berg246ed352010-08-23 10:46:32 +02003390 if (le16_to_cpu(ctx->active.channel) != ch) {
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003391 ch_info = iwl_get_channel_info(priv,
Shanyu Zhaoaa2dc6b2010-07-28 13:40:39 -07003392 channel->band,
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003393 ch);
3394 if (!is_channel_valid(ch_info)) {
3395 IWL_DEBUG_MAC80211(priv, "invalid channel\n");
3396 goto out;
3397 }
3398 spin_lock_irqsave(&priv->lock, flags);
3399
3400 priv->current_ht_config.smps = conf->smps_mode;
3401
3402 /* Configure HT40 channels */
Johannes Berg7e6a5882010-08-23 10:46:46 +02003403 ctx->ht.enabled = conf_is_ht(conf);
3404 if (ctx->ht.enabled) {
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003405 if (conf_is_ht40_minus(conf)) {
Johannes Berg7e6a5882010-08-23 10:46:46 +02003406 ctx->ht.extension_chan_offset =
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003407 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
Johannes Berg7e6a5882010-08-23 10:46:46 +02003408 ctx->ht.is_40mhz = true;
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003409 } else if (conf_is_ht40_plus(conf)) {
Johannes Berg7e6a5882010-08-23 10:46:46 +02003410 ctx->ht.extension_chan_offset =
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003411 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
Johannes Berg7e6a5882010-08-23 10:46:46 +02003412 ctx->ht.is_40mhz = true;
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003413 } else {
Johannes Berg7e6a5882010-08-23 10:46:46 +02003414 ctx->ht.extension_chan_offset =
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003415 IEEE80211_HT_PARAM_CHA_SEC_NONE;
Johannes Berg7e6a5882010-08-23 10:46:46 +02003416 ctx->ht.is_40mhz = false;
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003417 }
3418 } else
Johannes Berg7e6a5882010-08-23 10:46:46 +02003419 ctx->ht.is_40mhz = false;
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003420
Johannes Berg246ed352010-08-23 10:46:32 +02003421 if ((le16_to_cpu(ctx->staging.channel) != ch))
3422 ctx->staging.flags = 0;
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003423
Johannes Berg246ed352010-08-23 10:46:32 +02003424 iwl_set_rxon_channel(priv, channel, ctx);
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003425 iwl_set_rxon_ht(priv, ht_conf);
Johannes Berg246ed352010-08-23 10:46:32 +02003426 iwl_set_flags_for_band(priv, ctx, channel->band,
Johannes Berg8bd413e2010-08-23 10:46:40 +02003427 ctx->vif);
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003428 spin_unlock_irqrestore(&priv->lock, flags);
3429
3430 iwl_set_rate(priv);
3431 /*
3432 * at this point, staging_rxon has the
3433 * configuration for channel switch
3434 */
3435 if (priv->cfg->ops->lib->set_channel_switch(priv,
3436 ch_switch))
3437 priv->switch_rxon.switch_in_progress = false;
3438 }
3439 }
3440out:
3441 mutex_unlock(&priv->mutex);
3442out_exit:
3443 if (!priv->switch_rxon.switch_in_progress)
Johannes Berg8bd413e2010-08-23 10:46:40 +02003444 ieee80211_chswitch_done(ctx->vif, false);
Wey-Yi Guy79d07322010-05-06 08:54:11 -07003445 IWL_DEBUG_MAC80211(priv, "leave\n");
3446}
3447
Johannes Berg2295c662010-10-23 09:15:41 -07003448void iwlagn_configure_filter(struct ieee80211_hw *hw,
3449 unsigned int changed_flags,
3450 unsigned int *total_flags,
3451 u64 multicast)
Johannes Berg8b8ab9d2010-08-17 11:24:01 +02003452{
3453 struct iwl_priv *priv = hw->priv;
3454 __le32 filter_or = 0, filter_nand = 0;
Johannes Berg246ed352010-08-23 10:46:32 +02003455 struct iwl_rxon_context *ctx;
Johannes Berg8b8ab9d2010-08-17 11:24:01 +02003456
3457#define CHK(test, flag) do { \
3458 if (*total_flags & (test)) \
3459 filter_or |= (flag); \
3460 else \
3461 filter_nand |= (flag); \
3462 } while (0)
3463
3464 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
3465 changed_flags, *total_flags);
3466
3467 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
Johannes Bergbdb84fe2010-12-15 06:07:56 -08003468 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
3469 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
Johannes Berg8b8ab9d2010-08-17 11:24:01 +02003470 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
3471
3472#undef CHK
3473
3474 mutex_lock(&priv->mutex);
3475
Johannes Berg246ed352010-08-23 10:46:32 +02003476 for_each_context(priv, ctx) {
3477 ctx->staging.filter_flags &= ~filter_nand;
3478 ctx->staging.filter_flags |= filter_or;
Stanislaw Gruszka749ff4ef2010-10-22 17:04:27 +02003479
3480 /*
3481 * Not committing directly because hardware can perform a scan,
3482 * but we'll eventually commit the filter flags change anyway.
3483 */
Johannes Berg246ed352010-08-23 10:46:32 +02003484 }
Johannes Berg8b8ab9d2010-08-17 11:24:01 +02003485
3486 mutex_unlock(&priv->mutex);
3487
3488 /*
3489 * Receiving all multicast frames is always enabled by the
3490 * default flags setup in iwl_connection_init_rx_config()
3491 * since we currently do not support programming multicast
3492 * filters into the device.
3493 */
3494 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
3495 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
3496}
3497
Johannes Berg2295c662010-10-23 09:15:41 -07003498void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
Wey-Yi Guy716c74b2010-06-24 13:22:36 -07003499{
3500 struct iwl_priv *priv = hw->priv;
3501
3502 mutex_lock(&priv->mutex);
3503 IWL_DEBUG_MAC80211(priv, "enter\n");
3504
3505 /* do not support "flush" */
3506 if (!priv->cfg->ops->lib->txfifo_flush)
3507 goto done;
3508
3509 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3510 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
3511 goto done;
3512 }
3513 if (iwl_is_rfkill(priv)) {
3514 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
3515 goto done;
3516 }
3517
3518 /*
3519 * mac80211 will not push any more frames for transmit
3520 * until the flush is completed
3521 */
3522 if (drop) {
3523 IWL_DEBUG_MAC80211(priv, "send flush command\n");
3524 if (priv->cfg->ops->lib->txfifo_flush(priv, IWL_DROP_ALL)) {
3525 IWL_ERR(priv, "flush request fail\n");
3526 goto done;
3527 }
3528 }
3529 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
3530 iwlagn_wait_tx_queue_empty(priv);
3531done:
3532 mutex_unlock(&priv->mutex);
3533 IWL_DEBUG_MAC80211(priv, "leave\n");
3534}
3535
Johannes Berg9b9190d2011-01-06 08:07:10 -08003536static void iwlagn_disable_roc(struct iwl_priv *priv)
3537{
3538 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
3539 struct ieee80211_channel *chan = ACCESS_ONCE(priv->hw->conf.channel);
3540
3541 lockdep_assert_held(&priv->mutex);
3542
3543 if (!ctx->is_active)
3544 return;
3545
3546 ctx->staging.dev_type = RXON_DEV_TYPE_2STA;
3547 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3548 iwl_set_rxon_channel(priv, chan, ctx);
3549 iwl_set_flags_for_band(priv, ctx, chan->band, NULL);
3550
3551 priv->_agn.hw_roc_channel = NULL;
3552
Wey-Yi Guy80b38ff2011-02-04 10:46:41 -08003553 iwlcore_commit_rxon(priv, ctx);
Johannes Berg9b9190d2011-01-06 08:07:10 -08003554
3555 ctx->is_active = false;
3556}
3557
3558static void iwlagn_bg_roc_done(struct work_struct *work)
3559{
3560 struct iwl_priv *priv = container_of(work, struct iwl_priv,
3561 _agn.hw_roc_work.work);
3562
3563 mutex_lock(&priv->mutex);
3564 ieee80211_remain_on_channel_expired(priv->hw);
3565 iwlagn_disable_roc(priv);
3566 mutex_unlock(&priv->mutex);
3567}
3568
3569static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
3570 struct ieee80211_channel *channel,
3571 enum nl80211_channel_type channel_type,
3572 int duration)
3573{
3574 struct iwl_priv *priv = hw->priv;
3575 int err = 0;
3576
3577 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
3578 return -EOPNOTSUPP;
3579
3580 if (!(priv->contexts[IWL_RXON_CTX_PAN].interface_modes &
3581 BIT(NL80211_IFTYPE_P2P_CLIENT)))
3582 return -EOPNOTSUPP;
3583
3584 mutex_lock(&priv->mutex);
3585
3586 if (priv->contexts[IWL_RXON_CTX_PAN].is_active ||
3587 test_bit(STATUS_SCAN_HW, &priv->status)) {
3588 err = -EBUSY;
3589 goto out;
3590 }
3591
3592 priv->contexts[IWL_RXON_CTX_PAN].is_active = true;
3593 priv->_agn.hw_roc_channel = channel;
3594 priv->_agn.hw_roc_chantype = channel_type;
3595 priv->_agn.hw_roc_duration = DIV_ROUND_UP(duration * 1000, 1024);
Wey-Yi Guy80b38ff2011-02-04 10:46:41 -08003596 iwlcore_commit_rxon(priv, &priv->contexts[IWL_RXON_CTX_PAN]);
Johannes Berg9b9190d2011-01-06 08:07:10 -08003597 queue_delayed_work(priv->workqueue, &priv->_agn.hw_roc_work,
3598 msecs_to_jiffies(duration + 20));
3599
Johannes Berg94073912011-01-06 08:07:11 -08003600 msleep(IWL_MIN_SLOT_TIME); /* TU is almost ms */
Johannes Berg9b9190d2011-01-06 08:07:10 -08003601 ieee80211_ready_on_channel(priv->hw);
3602
3603 out:
3604 mutex_unlock(&priv->mutex);
3605
3606 return err;
3607}
3608
3609static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
3610{
3611 struct iwl_priv *priv = hw->priv;
3612
3613 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
3614 return -EOPNOTSUPP;
3615
3616 cancel_delayed_work_sync(&priv->_agn.hw_roc_work);
3617
3618 mutex_lock(&priv->mutex);
3619 iwlagn_disable_roc(priv);
3620 mutex_unlock(&priv->mutex);
3621
3622 return 0;
3623}
3624
Zhu Yib481de92007-09-25 17:54:57 -07003625/*****************************************************************************
3626 *
Zhu Yib481de92007-09-25 17:54:57 -07003627 * driver setup and teardown
3628 *
3629 *****************************************************************************/
3630
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08003631static void iwl_setup_deferred_work(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -07003632{
Reinette Chatred21050c2009-02-13 11:51:18 -08003633 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
Zhu Yib481de92007-09-25 17:54:57 -07003634
3635 init_waitqueue_head(&priv->wait_command_queue);
3636
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003637 INIT_WORK(&priv->restart, iwl_bg_restart);
3638 INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003639 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +08003640 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
Wey-Yi Guy65550632010-06-24 13:18:35 -07003641 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
Wey-Yi Guybee008b2010-08-23 07:57:04 -07003642 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
Wey-Yi Guyfbba9412010-08-23 07:57:10 -07003643 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
Tomas Winkler4a4a9e82008-05-29 16:34:54 +08003644 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
3645 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
Johannes Berg9b9190d2011-01-06 08:07:10 -08003646 INIT_DELAYED_WORK(&priv->_agn.hw_roc_work, iwlagn_bg_roc_done);
Tomas Winkler2a421b92008-06-12 09:47:10 +08003647
Tomas Winkler2a421b92008-06-12 09:47:10 +08003648 iwl_setup_scan_deferred_work(priv);
Zhu Yib481de92007-09-25 17:54:57 -07003649
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08003650 if (priv->cfg->ops->lib->setup_deferred_work)
3651 priv->cfg->ops->lib->setup_deferred_work(priv);
3652
3653 init_timer(&priv->statistics_periodic);
3654 priv->statistics_periodic.data = (unsigned long)priv;
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003655 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
Zhu Yib481de92007-09-25 17:54:57 -07003656
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -08003657 init_timer(&priv->ucode_trace);
3658 priv->ucode_trace.data = (unsigned long)priv;
3659 priv->ucode_trace.function = iwl_bg_ucode_trace;
3660
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +01003661 init_timer(&priv->watchdog);
3662 priv->watchdog.data = (unsigned long)priv;
3663 priv->watchdog.function = iwl_bg_watchdog;
Wey-Yi Guyb74e31a2010-03-01 17:23:50 -08003664
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07003665 if (!priv->cfg->base_params->use_isr_legacy)
Mohamed Abbasef850d72009-05-22 11:01:50 -07003666 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
3667 iwl_irq_tasklet, (unsigned long)priv);
3668 else
3669 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
3670 iwl_irq_tasklet_legacy, (unsigned long)priv);
Zhu Yib481de92007-09-25 17:54:57 -07003671}
3672
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08003673static void iwl_cancel_deferred_work(struct iwl_priv *priv)
Zhu Yib481de92007-09-25 17:54:57 -07003674{
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08003675 if (priv->cfg->ops->lib->cancel_deferred_work)
3676 priv->cfg->ops->lib->cancel_deferred_work(priv);
Zhu Yib481de92007-09-25 17:54:57 -07003677
Joonwoo Park3ae6a052007-11-29 10:43:16 +09003678 cancel_delayed_work_sync(&priv->init_alive_start);
Zhu Yib481de92007-09-25 17:54:57 -07003679 cancel_delayed_work(&priv->alive_start);
Wey-Yi Guy815e6292010-06-03 10:14:01 -07003680 cancel_work_sync(&priv->run_time_calib_work);
Zhu Yib481de92007-09-25 17:54:57 -07003681 cancel_work_sync(&priv->beacon_update);
Stanislaw Gruszkae7e16b92010-09-13 14:46:41 +02003682
3683 iwl_cancel_scan_deferred_work(priv);
3684
Wey-Yi Guybee008b2010-08-23 07:57:04 -07003685 cancel_work_sync(&priv->bt_full_concurrency);
Wey-Yi Guyfbba9412010-08-23 07:57:10 -07003686 cancel_work_sync(&priv->bt_runtime_config);
Stanislaw Gruszkae7e16b92010-09-13 14:46:41 +02003687
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08003688 del_timer_sync(&priv->statistics_periodic);
Wey-Yi Guya9e1cb62009-12-10 14:37:26 -08003689 del_timer_sync(&priv->ucode_trace);
Zhu Yib481de92007-09-25 17:54:57 -07003690}
3691
Reinette Chatre89f186a2009-10-30 14:36:11 -07003692static void iwl_init_hw_rates(struct iwl_priv *priv,
3693 struct ieee80211_rate *rates)
3694{
3695 int i;
3696
3697 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
3698 rates[i].bitrate = iwl_rates[i].ieee * 5;
3699 rates[i].hw_value = i; /* Rate scaling will work on indexes */
3700 rates[i].hw_value_short = i;
3701 rates[i].flags = 0;
3702 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
3703 /*
3704 * If CCK != 1M then set short preamble rate flag.
3705 */
3706 rates[i].flags |=
3707 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
3708 0 : IEEE80211_RATE_SHORT_PREAMBLE;
3709 }
3710 }
3711}
3712
3713static int iwl_init_drv(struct iwl_priv *priv)
3714{
3715 int ret;
3716
Reinette Chatre89f186a2009-10-30 14:36:11 -07003717 spin_lock_init(&priv->sta_lock);
3718 spin_lock_init(&priv->hcmd_lock);
3719
3720 INIT_LIST_HEAD(&priv->free_frames);
3721
3722 mutex_init(&priv->mutex);
Reinette Chatred2dfe6d2010-02-18 22:03:04 -08003723 mutex_init(&priv->sync_cmd_mutex);
Reinette Chatre89f186a2009-10-30 14:36:11 -07003724
Reinette Chatre89f186a2009-10-30 14:36:11 -07003725 priv->ieee_channels = NULL;
3726 priv->ieee_rates = NULL;
3727 priv->band = IEEE80211_BAND_2GHZ;
3728
3729 priv->iw_mode = NL80211_IFTYPE_STATION;
Johannes Bergba37a3d2009-12-10 14:37:27 -08003730 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
Wey-Yi Guya13d2762010-01-22 14:22:42 -08003731 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
Wey-Yi Guyd5a0ffa2010-03-04 13:38:59 -08003732 priv->_agn.agg_tids_count = 0;
Reinette Chatre89f186a2009-10-30 14:36:11 -07003733
Wey-Yi Guy8a472da2010-02-18 22:03:06 -08003734 /* initialize force reset */
3735 priv->force_reset[IWL_RF_RESET].reset_duration =
3736 IWL_DELAY_NEXT_FORCE_RF_RESET;
3737 priv->force_reset[IWL_FW_RESET].reset_duration =
3738 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
Reinette Chatre89f186a2009-10-30 14:36:11 -07003739
Stanislaw Gruszka410f2bb2011-03-04 17:51:51 +01003740 priv->rx_statistics_jiffies = jiffies;
3741
Reinette Chatre89f186a2009-10-30 14:36:11 -07003742 /* Choose which receivers/antennas to use */
3743 if (priv->cfg->ops->hcmd->set_rxon_chain)
Johannes Berg246ed352010-08-23 10:46:32 +02003744 priv->cfg->ops->hcmd->set_rxon_chain(priv,
3745 &priv->contexts[IWL_RXON_CTX_BSS]);
Reinette Chatre89f186a2009-10-30 14:36:11 -07003746
3747 iwl_init_scan_params(priv);
3748
Wey-Yi Guy22bf59a2010-08-23 07:57:11 -07003749 /* init bt coex */
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07003750 if (priv->cfg->bt_params &&
3751 priv->cfg->bt_params->advanced_bt_coexist) {
Wey-Yi Guyb6e116e2010-08-23 07:57:14 -07003752 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
3753 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
3754 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
Wey-Yi Guy22bf59a2010-08-23 07:57:11 -07003755 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
3756 priv->bt_duration = BT_DURATION_LIMIT_DEF;
3757 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
Wey-Yi Guy22bf59a2010-08-23 07:57:11 -07003758 }
3759
Reinette Chatre89f186a2009-10-30 14:36:11 -07003760 /* Set the tx_power_user_lmt to the lowest power level
3761 * this value will get overwritten by channel max power avg
3762 * from eeprom */
Wey-Yi Guyb744cb72010-03-23 11:37:59 -07003763 priv->tx_power_user_lmt = IWLAGN_TX_POWER_TARGET_POWER_MIN;
Stanislaw Gruszkaa25a66a2010-10-22 17:04:26 +02003764 priv->tx_power_next = IWLAGN_TX_POWER_TARGET_POWER_MIN;
Reinette Chatre89f186a2009-10-30 14:36:11 -07003765
3766 ret = iwl_init_channel_map(priv);
3767 if (ret) {
3768 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3769 goto err;
3770 }
3771
3772 ret = iwlcore_init_geos(priv);
3773 if (ret) {
3774 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3775 goto err_free_channel_map;
3776 }
3777 iwl_init_hw_rates(priv, priv->ieee_rates);
3778
3779 return 0;
3780
3781err_free_channel_map:
3782 iwl_free_channel_map(priv);
3783err:
3784 return ret;
3785}
3786
3787static void iwl_uninit_drv(struct iwl_priv *priv)
3788{
3789 iwl_calib_free_results(priv);
3790 iwlcore_free_geos(priv);
3791 iwl_free_channel_map(priv);
Johannes Berg811ecc92010-04-06 04:12:41 -07003792 kfree(priv->scan_cmd);
Reinette Chatre89f186a2009-10-30 14:36:11 -07003793}
3794
Johannes Bergdc21b542010-10-23 09:15:39 -07003795struct ieee80211_ops iwlagn_hw_ops = {
Johannes Berg2295c662010-10-23 09:15:41 -07003796 .tx = iwlagn_mac_tx,
3797 .start = iwlagn_mac_start,
3798 .stop = iwlagn_mac_stop,
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003799 .add_interface = iwl_mac_add_interface,
3800 .remove_interface = iwl_mac_remove_interface,
Johannes Bergd4daaea2010-10-23 09:15:43 -07003801 .change_interface = iwl_mac_change_interface,
Johannes Berg2295c662010-10-23 09:15:41 -07003802 .config = iwlagn_mac_config,
Johannes Berg8b8ab9d2010-08-17 11:24:01 +02003803 .configure_filter = iwlagn_configure_filter,
Johannes Berg2295c662010-10-23 09:15:41 -07003804 .set_key = iwlagn_mac_set_key,
3805 .update_tkip_key = iwlagn_mac_update_tkip_key,
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003806 .conf_tx = iwl_mac_conf_tx,
Johannes Berg2295c662010-10-23 09:15:41 -07003807 .bss_info_changed = iwlagn_bss_info_changed,
3808 .ampdu_action = iwlagn_mac_ampdu_action,
Johannes Berg6ab10ff2009-11-13 11:56:37 -08003809 .hw_scan = iwl_mac_hw_scan,
Johannes Berg2295c662010-10-23 09:15:41 -07003810 .sta_notify = iwlagn_mac_sta_notify,
Reinette Chatrefe6b23d2010-02-22 16:24:47 -08003811 .sta_add = iwlagn_mac_sta_add,
3812 .sta_remove = iwl_mac_sta_remove,
Johannes Berg2295c662010-10-23 09:15:41 -07003813 .channel_switch = iwlagn_mac_channel_switch,
3814 .flush = iwlagn_mac_flush,
Johannes Berga85d7cc2010-07-31 08:34:10 -07003815 .tx_last_beacon = iwl_mac_tx_last_beacon,
Johannes Berg9b9190d2011-01-06 08:07:10 -08003816 .remain_on_channel = iwl_mac_remain_on_channel,
3817 .cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel,
Zhu Yib481de92007-09-25 17:54:57 -07003818};
3819
Wey-Yi Guy3867fe02010-07-31 08:34:05 -07003820static void iwl_hw_detect(struct iwl_priv *priv)
3821{
3822 priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
3823 priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
3824 pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
Wey-Yi Guy49ded762010-07-31 08:34:06 -07003825 IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", priv->rev_id);
Wey-Yi Guy3867fe02010-07-31 08:34:05 -07003826}
3827
Wey-Yi Guy07d4f1a2010-07-31 08:34:08 -07003828static int iwl_set_hw_params(struct iwl_priv *priv)
3829{
3830 priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
3831 priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
3832 if (priv->cfg->mod_params->amsdu_size_8K)
3833 priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K);
3834 else
3835 priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K);
3836
3837 priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL;
3838
3839 if (priv->cfg->mod_params->disable_11n)
3840 priv->cfg->sku &= ~IWL_SKU_N;
3841
3842 /* Device-specific setup */
3843 return priv->cfg->ops->lib->set_hw_params(priv);
3844}
3845
Johannes Berge72f3682010-08-23 10:46:51 +02003846static const u8 iwlagn_bss_ac_to_fifo[] = {
3847 IWL_TX_FIFO_VO,
3848 IWL_TX_FIFO_VI,
3849 IWL_TX_FIFO_BE,
3850 IWL_TX_FIFO_BK,
3851};
3852
3853static const u8 iwlagn_bss_ac_to_queue[] = {
3854 0, 1, 2, 3,
3855};
3856
3857static const u8 iwlagn_pan_ac_to_fifo[] = {
3858 IWL_TX_FIFO_VO_IPAN,
3859 IWL_TX_FIFO_VI_IPAN,
3860 IWL_TX_FIFO_BE_IPAN,
3861 IWL_TX_FIFO_BK_IPAN,
3862};
3863
3864static const u8 iwlagn_pan_ac_to_queue[] = {
3865 7, 6, 5, 4,
3866};
3867
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07003868static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
Zhu Yib481de92007-09-25 17:54:57 -07003869{
Johannes Berg246ed352010-08-23 10:46:32 +02003870 int err = 0, i;
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07003871 struct iwl_priv *priv;
Zhu Yib481de92007-09-25 17:54:57 -07003872 struct ieee80211_hw *hw;
Tomas Winkler82b9a122008-03-04 18:09:30 -08003873 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
Mohamed Abbas0359fac2008-03-28 16:21:08 -07003874 unsigned long flags;
Wey-Yi Guyc6fa17e2010-07-15 05:58:30 -07003875 u16 pci_cmd, num_mac;
Zhu Yib481de92007-09-25 17:54:57 -07003876
Assaf Krauss316c30d2008-03-14 10:38:46 -07003877 /************************
3878 * 1. Allocating HW data
3879 ************************/
3880
Cahill, Ben M6440adb2007-11-29 11:09:55 +08003881 /* Disabling hardware scan means that mac80211 will perform scans
3882 * "the hard way", rather than using device's scan. */
Assaf Krauss1ea87392008-03-18 14:57:50 -07003883 if (cfg->mod_params->disable_hw_scan) {
Wey-Yi Guy72645ef2010-10-06 07:42:43 -07003884 dev_printk(KERN_DEBUG, &(pdev->dev),
3885 "sw scan support is deprecated\n");
Johannes Bergdc21b542010-10-23 09:15:39 -07003886 iwlagn_hw_ops.hw_scan = NULL;
Zhu Yib481de92007-09-25 17:54:57 -07003887 }
3888
Johannes Bergdc21b542010-10-23 09:15:39 -07003889 hw = iwl_alloc_all(cfg);
Assaf Krauss1d0a0822008-03-14 10:38:48 -07003890 if (!hw) {
Zhu Yib481de92007-09-25 17:54:57 -07003891 err = -ENOMEM;
3892 goto out;
3893 }
Assaf Krauss1d0a0822008-03-14 10:38:48 -07003894 priv = hw->priv;
3895 /* At this point both hw and priv are allocated. */
3896
Johannes Berg246ed352010-08-23 10:46:32 +02003897 /*
3898 * The default context is always valid,
3899 * more may be discovered when firmware
3900 * is loaded.
3901 */
3902 priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
3903
3904 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
3905 priv->contexts[i].ctxid = i;
3906
Johannes Berg763cc3b2010-09-03 06:32:21 -07003907 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
3908 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
Johannes Berg8f2d3d22010-08-23 10:46:37 +02003909 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
3910 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
3911 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
Johannes Berg8dfdb9d2010-08-23 10:46:38 +02003912 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
Johannes Berg2995baf2010-08-23 10:46:42 +02003913 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
Johannes Bergc10afb62010-08-23 10:46:43 +02003914 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
Johannes Berge72f3682010-08-23 10:46:51 +02003915 priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwlagn_bss_ac_to_fifo;
3916 priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwlagn_bss_ac_to_queue;
Johannes Bergd0fe4782010-08-23 10:46:58 +02003917 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
3918 BIT(NL80211_IFTYPE_ADHOC);
3919 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
3920 BIT(NL80211_IFTYPE_STATION);
Johannes Berg2295c662010-10-23 09:15:41 -07003921 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
Johannes Bergd0fe4782010-08-23 10:46:58 +02003922 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
3923 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
3924 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
Johannes Bergece9c4e2010-08-23 10:46:49 +02003925
3926 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
3927 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = REPLY_WIPAN_RXON_TIMING;
3928 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = REPLY_WIPAN_RXON_ASSOC;
3929 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
3930 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
3931 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
3932 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
3933 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
Johannes Berge72f3682010-08-23 10:46:51 +02003934 priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo = iwlagn_pan_ac_to_fifo;
3935 priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue = iwlagn_pan_ac_to_queue;
3936 priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
Johannes Bergd0fe4782010-08-23 10:46:58 +02003937 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
3938 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
Wey-Yi Guyf35c0c52011-01-13 17:09:29 -08003939#ifdef CONFIG_IWL_P2P
3940 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
3941 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
3942#endif
Johannes Bergd0fe4782010-08-23 10:46:58 +02003943 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
3944 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
3945 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
Johannes Bergece9c4e2010-08-23 10:46:49 +02003946
3947 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
Johannes Berg8f2d3d22010-08-23 10:46:37 +02003948
Zhu Yib481de92007-09-25 17:54:57 -07003949 SET_IEEE80211_DEV(hw, &pdev->dev);
3950
Tomas Winklere1623442009-01-27 14:27:56 -08003951 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
Tomas Winkler82b9a122008-03-04 18:09:30 -08003952 priv->cfg = cfg;
Zhu Yib481de92007-09-25 17:54:57 -07003953 priv->pci_dev = pdev;
Mohamed Abbas40cefda2009-05-22 11:01:52 -07003954 priv->inta_mask = CSR_INI_SET_MASK;
Assaf Krauss316c30d2008-03-14 10:38:46 -07003955
Wey-Yi Guybee008b2010-08-23 07:57:04 -07003956 /* is antenna coupling more than 35dB ? */
3957 priv->bt_ant_couple_ok =
3958 (iwlagn_ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
3959 true : false;
3960
Wey-Yi Guy9f28ebc2010-11-26 13:24:19 -08003961 /* enable/disable bt channel inhibition */
Wey-Yi Guyf37837c2010-08-23 07:57:12 -07003962 priv->bt_ch_announce = iwlagn_bt_ch_announce;
Wey-Yi Guy9f28ebc2010-11-26 13:24:19 -08003963 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
3964 (priv->bt_ch_announce) ? "On" : "Off");
Wey-Yi Guyf37837c2010-08-23 07:57:12 -07003965
Wey-Yi Guy20594eb2009-08-07 15:41:39 -07003966 if (iwl_alloc_traffic_mem(priv))
3967 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
Zhu Yib481de92007-09-25 17:54:57 -07003968
Assaf Krauss316c30d2008-03-14 10:38:46 -07003969 /**************************
3970 * 2. Initializing PCI bus
3971 **************************/
John W. Linville1a7123c2010-08-05 14:39:31 -04003972 pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
3973 PCIE_LINK_STATE_CLKPM);
3974
Assaf Krauss316c30d2008-03-14 10:38:46 -07003975 if (pci_enable_device(pdev)) {
3976 err = -ENODEV;
3977 goto out_ieee80211_free_hw;
3978 }
3979
3980 pci_set_master(pdev);
3981
Winkler, Tomas093d874c2008-09-26 15:09:34 +08003982 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
Assaf Krauss316c30d2008-03-14 10:38:46 -07003983 if (!err)
Winkler, Tomas093d874c2008-09-26 15:09:34 +08003984 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
Ron Rindjunskycc2a8ea2008-04-21 15:41:59 -07003985 if (err) {
Winkler, Tomas093d874c2008-09-26 15:09:34 +08003986 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
Ron Rindjunskycc2a8ea2008-04-21 15:41:59 -07003987 if (!err)
Winkler, Tomas093d874c2008-09-26 15:09:34 +08003988 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
Ron Rindjunskycc2a8ea2008-04-21 15:41:59 -07003989 /* both attempts failed: */
Assaf Krauss316c30d2008-03-14 10:38:46 -07003990 if (err) {
Tomas Winkler978785a2008-12-19 10:37:31 +08003991 IWL_WARN(priv, "No suitable DMA available.\n");
Assaf Krauss316c30d2008-03-14 10:38:46 -07003992 goto out_pci_disable_device;
Ron Rindjunskycc2a8ea2008-04-21 15:41:59 -07003993 }
Assaf Krauss316c30d2008-03-14 10:38:46 -07003994 }
3995
3996 err = pci_request_regions(pdev, DRV_NAME);
3997 if (err)
3998 goto out_pci_disable_device;
3999
4000 pci_set_drvdata(pdev, priv);
4001
Assaf Krauss316c30d2008-03-14 10:38:46 -07004002
4003 /***********************
4004 * 3. Read REV register
4005 ***********************/
4006 priv->hw_base = pci_iomap(pdev, 0, 0);
4007 if (!priv->hw_base) {
4008 err = -ENODEV;
4009 goto out_pci_release_regions;
4010 }
4011
Tomas Winklere1623442009-01-27 14:27:56 -08004012 IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
Assaf Krauss316c30d2008-03-14 10:38:46 -07004013 (unsigned long long) pci_resource_len(pdev, 0));
Tomas Winklere1623442009-01-27 14:27:56 -08004014 IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
Assaf Krauss316c30d2008-03-14 10:38:46 -07004015
Reinette Chatre731a29b2009-12-14 14:12:11 -08004016 /* these spin locks will be used in apm_ops.init and EEPROM access
Mohamed Abbasa8b50a02009-05-22 11:01:47 -07004017 * we should init now
4018 */
4019 spin_lock_init(&priv->reg_lock);
Reinette Chatre731a29b2009-12-14 14:12:11 -08004020 spin_lock_init(&priv->lock);
Reinette Chatre4843b5a2010-02-03 09:38:59 -08004021
4022 /*
4023 * stop and reset the on-board processor just in case it is in a
4024 * strange state ... like being left stranded by a primary kernel
4025 * and this is now the kdump kernel trying to start up
4026 */
4027 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
4028
Tomas Winklerb661c812008-04-23 17:14:54 -07004029 iwl_hw_detect(priv);
Shanyu Zhaoc11362c2010-03-05 17:05:20 -08004030 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
Tomas Winklerb661c812008-04-23 17:14:54 -07004031 priv->cfg->name, priv->hw_rev);
Assaf Krauss316c30d2008-03-14 10:38:46 -07004032
Tomas Winklere7b63582008-09-03 11:26:49 +08004033 /* We disable the RETRY_TIMEOUT register (0x41) to keep
4034 * PCI Tx retries from interfering with C3 CPU state */
4035 pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
4036
Mohamed Abbas086ed112009-05-22 11:01:54 -07004037 iwl_prepare_card_hw(priv);
4038 if (!priv->hw_ready) {
4039 IWL_WARN(priv, "Failed, HW not ready\n");
4040 goto out_iounmap;
4041 }
4042
Assaf Krauss316c30d2008-03-14 10:38:46 -07004043 /*****************
4044 * 4. Read EEPROM
4045 *****************/
Assaf Krauss316c30d2008-03-14 10:38:46 -07004046 /* Read the EEPROM */
4047 err = iwl_eeprom_init(priv);
4048 if (err) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08004049 IWL_ERR(priv, "Unable to init EEPROM\n");
Assaf Krauss316c30d2008-03-14 10:38:46 -07004050 goto out_iounmap;
4051 }
Tomas Winkler8614f362008-04-23 17:14:55 -07004052 err = iwl_eeprom_check_version(priv);
4053 if (err)
Reinette Chatrec8f16132009-02-27 16:21:22 -08004054 goto out_free_eeprom;
Tomas Winkler8614f362008-04-23 17:14:55 -07004055
Wey-Yi Guy21a5b3c2010-11-10 13:32:59 -08004056 err = iwl_eeprom_check_sku(priv);
4057 if (err)
4058 goto out_free_eeprom;
4059
Ron Rindjunsky02883012008-05-15 13:53:53 +08004060 /* extract MAC Address */
Wey-Yi Guyc6fa17e2010-07-15 05:58:30 -07004061 iwl_eeprom_get_mac(priv, priv->addresses[0].addr);
4062 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
4063 priv->hw->wiphy->addresses = priv->addresses;
4064 priv->hw->wiphy->n_addresses = 1;
4065 num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS);
4066 if (num_mac > 1) {
4067 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
4068 ETH_ALEN);
4069 priv->addresses[1].addr[5]++;
4070 priv->hw->wiphy->n_addresses++;
4071 }
Assaf Krauss316c30d2008-03-14 10:38:46 -07004072
4073 /************************
4074 * 5. Setup HW constants
4075 ************************/
Ron Rindjunskyda154e302008-06-30 17:23:20 +08004076 if (iwl_set_hw_params(priv)) {
Winkler, Tomas15b16872008-12-19 10:37:33 +08004077 IWL_ERR(priv, "failed to set hw parameters\n");
Tomas Winkler073d3f52008-04-21 15:41:52 -07004078 goto out_free_eeprom;
Assaf Krauss316c30d2008-03-14 10:38:46 -07004079 }
4080
4081 /*******************
Tomas Winkler6ba87952008-05-15 13:54:17 +08004082 * 6. Setup priv
Assaf Krauss316c30d2008-03-14 10:38:46 -07004083 *******************/
Zhu Yib481de92007-09-25 17:54:57 -07004084
Tomas Winkler6ba87952008-05-15 13:54:17 +08004085 err = iwl_init_drv(priv);
Assaf Kraussbf85ea42008-03-14 10:38:49 -07004086 if (err)
Ron Rindjunsky399f4902008-04-23 17:14:56 -07004087 goto out_free_eeprom;
Assaf Kraussbf85ea42008-03-14 10:38:49 -07004088 /* At this point both hw and priv are initialized. */
Assaf Krauss316c30d2008-03-14 10:38:46 -07004089
Assaf Krauss316c30d2008-03-14 10:38:46 -07004090 /********************
Abhijeet Kolekar09f9bf72009-04-20 14:37:03 -07004091 * 7. Setup services
Assaf Krauss316c30d2008-03-14 10:38:46 -07004092 ********************/
Mohamed Abbas0359fac2008-03-28 16:21:08 -07004093 spin_lock_irqsave(&priv->lock, flags);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004094 iwl_disable_interrupts(priv);
Mohamed Abbas0359fac2008-03-28 16:21:08 -07004095 spin_unlock_irqrestore(&priv->lock, flags);
Assaf Krauss316c30d2008-03-14 10:38:46 -07004096
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004097 pci_enable_msi(priv->pci_dev);
4098
Wey-Yi Guye39fdee2010-11-10 09:56:40 -08004099 if (priv->cfg->ops->lib->isr_ops.alloc)
4100 priv->cfg->ops->lib->isr_ops.alloc(priv);
4101
4102 err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr_ops.isr,
Mohamed Abbasef850d72009-05-22 11:01:50 -07004103 IRQF_SHARED, DRV_NAME, priv);
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004104 if (err) {
4105 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
4106 goto out_disable_msi;
4107 }
Assaf Krauss316c30d2008-03-14 10:38:46 -07004108
Emmanuel Grumbach4e393172008-06-12 09:46:53 +08004109 iwl_setup_deferred_work(priv);
Emmanuel Grumbach653fa4a2008-06-30 17:23:11 +08004110 iwl_setup_rx_handlers(priv);
Assaf Krauss316c30d2008-03-14 10:38:46 -07004111
Johannes Berg158bea02010-01-22 14:22:53 -08004112 /*********************************************
4113 * 8. Enable interrupts and read RFKILL state
4114 *********************************************/
Tomas Winkler6ba87952008-05-15 13:54:17 +08004115
Stanislaw Gruszka554d1d02010-12-23 12:38:21 +01004116 /* enable rfkill interrupt: hw bug w/a */
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004117 pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd);
4118 if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
4119 pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
4120 pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd);
4121 }
4122
Stanislaw Gruszka554d1d02010-12-23 12:38:21 +01004123 iwl_enable_rfkill_int(priv);
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004124
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004125 /* If platform's RF_KILL switch is NOT set to KILL */
4126 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
4127 clear_bit(STATUS_RF_KILL_HW, &priv->status);
4128 else
4129 set_bit(STATUS_RF_KILL_HW, &priv->status);
Tomas Winkler6ba87952008-05-15 13:54:17 +08004130
Johannes Berga60e77e2009-06-04 18:26:06 +02004131 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
4132 test_bit(STATUS_RF_KILL_HW, &priv->status));
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004133
Emmanuel Grumbach58d0f362008-06-12 09:47:19 +08004134 iwl_power_initialize(priv);
Wey-Yi Guy39b73fb12009-07-24 11:13:02 -07004135 iwl_tt_initialize(priv);
Johannes Berg158bea02010-01-22 14:22:53 -08004136
Reinette Chatrea15707d2010-05-10 15:08:11 -07004137 init_completion(&priv->_agn.firmware_loading_complete);
Johannes Berg562db532010-04-29 07:41:53 -07004138
Johannes Bergb08dfd02010-01-29 11:54:56 -08004139 err = iwl_request_firmware(priv, true);
Johannes Berg158bea02010-01-22 14:22:53 -08004140 if (err)
Emmanuel Grumbach7d476182010-05-23 00:14:08 -07004141 goto out_destroy_workqueue;
Johannes Berg158bea02010-01-22 14:22:53 -08004142
Zhu Yib481de92007-09-25 17:54:57 -07004143 return 0;
4144
Emmanuel Grumbach7d476182010-05-23 00:14:08 -07004145 out_destroy_workqueue:
Reinette Chatrec8f16132009-02-27 16:21:22 -08004146 destroy_workqueue(priv->workqueue);
4147 priv->workqueue = NULL;
Helmut Schaa795cc0a2009-02-12 18:51:03 +01004148 free_irq(priv->pci_dev->irq, priv);
Wey-Yi Guye39fdee2010-11-10 09:56:40 -08004149 if (priv->cfg->ops->lib->isr_ops.free)
4150 priv->cfg->ops->lib->isr_ops.free(priv);
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004151 out_disable_msi:
4152 pci_disable_msi(priv->pci_dev);
Tomas Winkler6ba87952008-05-15 13:54:17 +08004153 iwl_uninit_drv(priv);
Tomas Winkler073d3f52008-04-21 15:41:52 -07004154 out_free_eeprom:
4155 iwl_eeprom_free(priv);
Zhu Yib481de92007-09-25 17:54:57 -07004156 out_iounmap:
4157 pci_iounmap(pdev, priv->hw_base);
4158 out_pci_release_regions:
Assaf Krauss316c30d2008-03-14 10:38:46 -07004159 pci_set_drvdata(pdev, NULL);
Reinette Chatre623d5632009-03-03 11:37:04 -08004160 pci_release_regions(pdev);
Zhu Yib481de92007-09-25 17:54:57 -07004161 out_pci_disable_device:
4162 pci_disable_device(pdev);
Zhu Yib481de92007-09-25 17:54:57 -07004163 out_ieee80211_free_hw:
Wey-Yi Guy20594eb2009-08-07 15:41:39 -07004164 iwl_free_traffic_mem(priv);
Wey-Yi Guyd7c76f42009-10-09 13:20:17 -07004165 ieee80211_free_hw(priv->hw);
Zhu Yib481de92007-09-25 17:54:57 -07004166 out:
4167 return err;
4168}
4169
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004170static void __devexit iwl_pci_remove(struct pci_dev *pdev)
Zhu Yib481de92007-09-25 17:54:57 -07004171{
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07004172 struct iwl_priv *priv = pci_get_drvdata(pdev);
Mohamed Abbas0359fac2008-03-28 16:21:08 -07004173 unsigned long flags;
Zhu Yib481de92007-09-25 17:54:57 -07004174
4175 if (!priv)
4176 return;
4177
Reinette Chatrea15707d2010-05-10 15:08:11 -07004178 wait_for_completion(&priv->_agn.firmware_loading_complete);
Johannes Berg562db532010-04-29 07:41:53 -07004179
Tomas Winklere1623442009-01-27 14:27:56 -08004180 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
Zhu Yib481de92007-09-25 17:54:57 -07004181
Emmanuel Grumbach67249622008-05-29 16:35:26 +08004182 iwl_dbgfs_unregister(priv);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004183 sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
Emmanuel Grumbach67249622008-05-29 16:35:26 +08004184
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004185 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
4186 * to be called and iwl_down since we are removing the device
Gregory Greenman0b124c32008-09-03 11:18:50 +08004187 * we need to set STATUS_EXIT_PENDING bit.
4188 */
4189 set_bit(STATUS_EXIT_PENDING, &priv->status);
Wey-Yi Guy5ed540a2011-01-21 15:26:39 -08004190
4191 iwl_leds_exit(priv);
4192
Ron Rindjunskyc4f55232008-03-28 16:21:10 -07004193 if (priv->mac80211_registered) {
4194 ieee80211_unregister_hw(priv->hw);
4195 priv->mac80211_registered = 0;
Gregory Greenman0b124c32008-09-03 11:18:50 +08004196 } else {
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004197 iwl_down(priv);
Ron Rindjunskyc4f55232008-03-28 16:21:10 -07004198 }
4199
Ben Cahillc166b252009-10-23 13:42:35 -07004200 /*
4201 * Make sure device is reset to low power before unloading driver.
4202 * This may be redundant with iwl_down(), but there are paths to
4203 * run iwl_down() without calling apm_ops.stop(), and there are
4204 * paths to avoid running iwl_down() at all before leaving driver.
4205 * This (inexpensive) call *makes sure* device is reset.
4206 */
Johannes Berg14e8e4a2010-09-22 18:02:10 +02004207 iwl_apm_stop(priv);
Ben Cahillc166b252009-10-23 13:42:35 -07004208
Wey-Yi Guy39b73fb12009-07-24 11:13:02 -07004209 iwl_tt_exit(priv);
4210
Mohamed Abbas0359fac2008-03-28 16:21:08 -07004211 /* make sure we flush any pending irq or
4212 * tasklet for the driver
4213 */
4214 spin_lock_irqsave(&priv->lock, flags);
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004215 iwl_disable_interrupts(priv);
Mohamed Abbas0359fac2008-03-28 16:21:08 -07004216 spin_unlock_irqrestore(&priv->lock, flags);
4217
4218 iwl_synchronize_irq(priv);
4219
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004220 iwl_dealloc_ucode_pci(priv);
Zhu Yib481de92007-09-25 17:54:57 -07004221
4222 if (priv->rxq.bd)
Wey-Yi Guy54b81552010-03-17 13:34:35 -07004223 iwlagn_rx_queue_free(priv, &priv->rxq);
Wey-Yi Guy74bcdb32010-03-17 13:34:34 -07004224 iwlagn_hw_txq_ctx_free(priv);
Zhu Yib481de92007-09-25 17:54:57 -07004225
Tomas Winkler073d3f52008-04-21 15:41:52 -07004226 iwl_eeprom_free(priv);
Zhu Yib481de92007-09-25 17:54:57 -07004227
Zhu Yib481de92007-09-25 17:54:57 -07004228
Mohamed Abbas948c1712007-10-25 17:15:45 +08004229 /*netif_stop_queue(dev); */
4230 flush_workqueue(priv->workqueue);
4231
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004232 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
Zhu Yib481de92007-09-25 17:54:57 -07004233 * priv->workqueue... so we can't take down the workqueue
4234 * until now... */
4235 destroy_workqueue(priv->workqueue);
4236 priv->workqueue = NULL;
Wey-Yi Guy20594eb2009-08-07 15:41:39 -07004237 iwl_free_traffic_mem(priv);
Zhu Yib481de92007-09-25 17:54:57 -07004238
Helmut Schaa6cd0b1c2009-01-19 13:10:07 +01004239 free_irq(priv->pci_dev->irq, priv);
4240 pci_disable_msi(priv->pci_dev);
Zhu Yib481de92007-09-25 17:54:57 -07004241 pci_iounmap(pdev, priv->hw_base);
4242 pci_release_regions(pdev);
4243 pci_disable_device(pdev);
4244 pci_set_drvdata(pdev, NULL);
4245
Tomas Winkler6ba87952008-05-15 13:54:17 +08004246 iwl_uninit_drv(priv);
Zhu Yib481de92007-09-25 17:54:57 -07004247
Wey-Yi Guye39fdee2010-11-10 09:56:40 -08004248 if (priv->cfg->ops->lib->isr_ops.free)
4249 priv->cfg->ops->lib->isr_ops.free(priv);
Mohamed Abbasef850d72009-05-22 11:01:50 -07004250
Johannes Berg77834542010-10-04 05:50:36 -07004251 dev_kfree_skb(priv->beacon_skb);
Zhu Yib481de92007-09-25 17:54:57 -07004252
4253 ieee80211_free_hw(priv->hw);
4254}
4255
Zhu Yib481de92007-09-25 17:54:57 -07004256
4257/*****************************************************************************
4258 *
4259 * driver and module entry point
4260 *
4261 *****************************************************************************/
4262
Ron Rindjunskyfed90172008-04-15 16:01:41 -07004263/* Hardware specific file defines the PCI IDs table for that hardware module */
Alexey Dobriyana3aa1882010-01-07 11:58:11 +00004264static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
Wey-Yi Guyac592572009-11-20 12:05:03 -08004265 {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
4266 {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
4267 {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
4268 {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */
4269 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */
4270 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */
4271 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */
4272 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */
4273 {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */
4274 {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */
4275 {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */
4276 {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */
4277 {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */
4278 {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */
4279 {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */
4280 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */
4281 {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */
4282 {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */
4283 {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */
4284 {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */
4285 {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */
4286 {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */
4287 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */
4288 {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */
4289
4290/* 5300 Series WiFi */
4291 {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */
4292 {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */
4293 {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */
4294 {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */
4295 {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */
4296 {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */
4297 {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */
4298 {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */
4299 {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */
4300 {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */
4301 {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */
4302 {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */
4303
4304/* 5350 Series WiFi/WiMax */
4305 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */
4306 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */
4307 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */
4308
4309/* 5150 Series Wifi/WiMax */
4310 {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */
4311 {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */
4312 {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */
4313 {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */
4314 {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */
4315 {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */
4316
4317 {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */
4318 {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */
4319 {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */
4320 {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */
Wey-Yi Guy5953a622009-09-17 10:43:53 -07004321
4322/* 6x00 Series */
Wey-Yi Guy5953a622009-09-17 10:43:53 -07004323 {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
4324 {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
4325 {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
4326 {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
4327 {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
4328 {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
4329 {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
4330 {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
4331 {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
4332 {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},
Shanyu Zhao4b3e8062010-04-07 18:06:36 -07004333
Wey-Yi Guy003ea982010-12-15 08:06:23 -08004334/* 6x05 Series */
Wey-Yi Guy8b3ee292010-11-18 11:41:48 -08004335 {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)},
4336 {IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)},
4337 {IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)},
4338 {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)},
4339 {IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)},
4340 {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)},
4341 {IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)},
Shanyu Zhao18089722010-05-06 10:15:21 -07004342
Wey-Yi Guy003ea982010-12-15 08:06:23 -08004343/* 6x30 Series */
Wey-Yi Guy8b3ee292010-11-18 11:41:48 -08004344 {IWL_PCI_DEVICE(0x008A, 0x5305, iwl1030_bgn_cfg)},
4345 {IWL_PCI_DEVICE(0x008A, 0x5307, iwl1030_bg_cfg)},
4346 {IWL_PCI_DEVICE(0x008A, 0x5325, iwl1030_bgn_cfg)},
4347 {IWL_PCI_DEVICE(0x008A, 0x5327, iwl1030_bg_cfg)},
4348 {IWL_PCI_DEVICE(0x008B, 0x5315, iwl1030_bgn_cfg)},
4349 {IWL_PCI_DEVICE(0x008B, 0x5317, iwl1030_bg_cfg)},
4350 {IWL_PCI_DEVICE(0x0090, 0x5211, iwl6030_2agn_cfg)},
4351 {IWL_PCI_DEVICE(0x0090, 0x5215, iwl6030_2bgn_cfg)},
4352 {IWL_PCI_DEVICE(0x0090, 0x5216, iwl6030_2abg_cfg)},
4353 {IWL_PCI_DEVICE(0x0091, 0x5201, iwl6030_2agn_cfg)},
4354 {IWL_PCI_DEVICE(0x0091, 0x5205, iwl6030_2bgn_cfg)},
4355 {IWL_PCI_DEVICE(0x0091, 0x5206, iwl6030_2abg_cfg)},
4356 {IWL_PCI_DEVICE(0x0091, 0x5207, iwl6030_2bg_cfg)},
4357 {IWL_PCI_DEVICE(0x0091, 0x5221, iwl6030_2agn_cfg)},
4358 {IWL_PCI_DEVICE(0x0091, 0x5225, iwl6030_2bgn_cfg)},
4359 {IWL_PCI_DEVICE(0x0091, 0x5226, iwl6030_2abg_cfg)},
Wey-Yi Guy5953a622009-09-17 10:43:53 -07004360
4361/* 6x50 WiFi/WiMax Series */
Wey-Yi Guy5953a622009-09-17 10:43:53 -07004362 {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
4363 {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
4364 {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)},
4365 {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)},
Wey-Yi Guy5953a622009-09-17 10:43:53 -07004366 {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)},
4367 {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)},
4368
Wey-Yi Guy003ea982010-12-15 08:06:23 -08004369/* 6150 WiFi/WiMax Series */
Wey-Yi Guy8b3ee292010-11-18 11:41:48 -08004370 {IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg)},
4371 {IWL_PCI_DEVICE(0x0885, 0x1306, iwl6150_bgn_cfg)},
4372 {IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg)},
4373 {IWL_PCI_DEVICE(0x0885, 0x1326, iwl6150_bgn_cfg)},
4374 {IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg)},
4375 {IWL_PCI_DEVICE(0x0886, 0x1316, iwl6150_bgn_cfg)},
Shanyu Zhao03264332010-06-29 17:27:27 -07004376
Jay Sternberg77dcb6a2009-03-06 13:52:55 -08004377/* 1000 Series WiFi */
Wey-Yi Guy4bd0914f2009-09-17 10:43:52 -07004378 {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},
4379 {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)},
4380 {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)},
4381 {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)},
4382 {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)},
4383 {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)},
4384 {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)},
4385 {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)},
4386 {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)},
4387 {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)},
4388 {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)},
4389 {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)},
Jay Sternberg1de19ec2010-09-14 15:21:20 -07004390
Wey-Yi Guy58a39092010-10-06 08:14:21 -07004391/* 100 Series WiFi */
Jay Sternberg1de19ec2010-09-14 15:21:20 -07004392 {IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg)},
Jay Sternberg1de19ec2010-09-14 15:21:20 -07004393 {IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg)},
Wey-Yi Guy2a21ff42010-11-10 09:56:37 -08004394 {IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg)},
4395 {IWL_PCI_DEVICE(0x08AF, 0x1017, iwl100_bg_cfg)},
4396 {IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg)},
4397 {IWL_PCI_DEVICE(0x08AE, 0x1027, iwl100_bg_cfg)},
Wey-Yi Guy58a39092010-10-06 08:14:21 -07004398
4399/* 130 Series WiFi */
4400 {IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg)},
4401 {IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg)},
4402 {IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg)},
4403 {IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg)},
4404 {IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg)},
4405 {IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg)},
4406
Wey-Yi Guy04b8e752011-01-08 11:47:56 -08004407/* 2x00 Series */
4408 {IWL_PCI_DEVICE(0x0890, 0x4022, iwl2000_2bgn_cfg)},
4409 {IWL_PCI_DEVICE(0x0891, 0x4222, iwl2000_2bgn_cfg)},
4410 {IWL_PCI_DEVICE(0x0890, 0x4422, iwl2000_2bgn_cfg)},
4411 {IWL_PCI_DEVICE(0x0890, 0x4026, iwl2000_2bg_cfg)},
4412 {IWL_PCI_DEVICE(0x0891, 0x4226, iwl2000_2bg_cfg)},
4413 {IWL_PCI_DEVICE(0x0890, 0x4426, iwl2000_2bg_cfg)},
4414
4415/* 2x30 Series */
4416 {IWL_PCI_DEVICE(0x0887, 0x4062, iwl2030_2bgn_cfg)},
4417 {IWL_PCI_DEVICE(0x0888, 0x4262, iwl2030_2bgn_cfg)},
4418 {IWL_PCI_DEVICE(0x0887, 0x4462, iwl2030_2bgn_cfg)},
4419 {IWL_PCI_DEVICE(0x0887, 0x4066, iwl2030_2bg_cfg)},
4420 {IWL_PCI_DEVICE(0x0888, 0x4266, iwl2030_2bg_cfg)},
4421 {IWL_PCI_DEVICE(0x0887, 0x4466, iwl2030_2bg_cfg)},
4422
4423/* 6x35 Series */
4424 {IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)},
4425 {IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)},
4426 {IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)},
4427 {IWL_PCI_DEVICE(0x088E, 0x4064, iwl6035_2abg_cfg)},
4428 {IWL_PCI_DEVICE(0x088F, 0x4264, iwl6035_2abg_cfg)},
4429 {IWL_PCI_DEVICE(0x088E, 0x4464, iwl6035_2abg_cfg)},
4430 {IWL_PCI_DEVICE(0x088E, 0x4066, iwl6035_2bg_cfg)},
4431 {IWL_PCI_DEVICE(0x088F, 0x4266, iwl6035_2bg_cfg)},
4432 {IWL_PCI_DEVICE(0x088E, 0x4466, iwl6035_2bg_cfg)},
4433
4434/* 200 Series */
4435 {IWL_PCI_DEVICE(0x0894, 0x0022, iwl200_bgn_cfg)},
4436 {IWL_PCI_DEVICE(0x0895, 0x0222, iwl200_bgn_cfg)},
4437 {IWL_PCI_DEVICE(0x0894, 0x0422, iwl200_bgn_cfg)},
4438 {IWL_PCI_DEVICE(0x0894, 0x0026, iwl200_bg_cfg)},
4439 {IWL_PCI_DEVICE(0x0895, 0x0226, iwl200_bg_cfg)},
4440 {IWL_PCI_DEVICE(0x0894, 0x0426, iwl200_bg_cfg)},
4441
4442/* 230 Series */
4443 {IWL_PCI_DEVICE(0x0892, 0x0062, iwl230_bgn_cfg)},
4444 {IWL_PCI_DEVICE(0x0893, 0x0262, iwl230_bgn_cfg)},
4445 {IWL_PCI_DEVICE(0x0892, 0x0462, iwl230_bgn_cfg)},
4446 {IWL_PCI_DEVICE(0x0892, 0x0066, iwl230_bg_cfg)},
4447 {IWL_PCI_DEVICE(0x0893, 0x0266, iwl230_bg_cfg)},
4448 {IWL_PCI_DEVICE(0x0892, 0x0466, iwl230_bg_cfg)},
4449
Ron Rindjunskyfed90172008-04-15 16:01:41 -07004450 {0}
4451};
4452MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
4453
4454static struct pci_driver iwl_driver = {
Zhu Yib481de92007-09-25 17:54:57 -07004455 .name = DRV_NAME,
Ron Rindjunskyfed90172008-04-15 16:01:41 -07004456 .id_table = iwl_hw_card_ids,
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004457 .probe = iwl_pci_probe,
4458 .remove = __devexit_p(iwl_pci_remove),
John W. Linvillef60dc012010-10-25 16:12:37 -04004459 .driver.pm = IWL_PM_OPS,
Zhu Yib481de92007-09-25 17:54:57 -07004460};
4461
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004462static int __init iwl_init(void)
Zhu Yib481de92007-09-25 17:54:57 -07004463{
4464
4465 int ret;
Joe Perchesc96c31e2010-07-26 14:39:58 -07004466 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
4467 pr_info(DRV_COPYRIGHT "\n");
Reinette Chatre897e1cf2008-03-28 16:21:09 -07004468
Tomas Winklere227cea2008-07-18 13:53:05 +08004469 ret = iwlagn_rate_control_register();
Reinette Chatre897e1cf2008-03-28 16:21:09 -07004470 if (ret) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07004471 pr_err("Unable to register rate control algorithm: %d\n", ret);
Reinette Chatre897e1cf2008-03-28 16:21:09 -07004472 return ret;
4473 }
4474
Ron Rindjunskyfed90172008-04-15 16:01:41 -07004475 ret = pci_register_driver(&iwl_driver);
Zhu Yib481de92007-09-25 17:54:57 -07004476 if (ret) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07004477 pr_err("Unable to initialize PCI module\n");
Reinette Chatre897e1cf2008-03-28 16:21:09 -07004478 goto error_register;
Zhu Yib481de92007-09-25 17:54:57 -07004479 }
Zhu Yib481de92007-09-25 17:54:57 -07004480
4481 return ret;
Reinette Chatre897e1cf2008-03-28 16:21:09 -07004482
Reinette Chatre897e1cf2008-03-28 16:21:09 -07004483error_register:
Tomas Winklere227cea2008-07-18 13:53:05 +08004484 iwlagn_rate_control_unregister();
Reinette Chatre897e1cf2008-03-28 16:21:09 -07004485 return ret;
Zhu Yib481de92007-09-25 17:54:57 -07004486}
4487
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004488static void __exit iwl_exit(void)
Zhu Yib481de92007-09-25 17:54:57 -07004489{
Ron Rindjunskyfed90172008-04-15 16:01:41 -07004490 pci_unregister_driver(&iwl_driver);
Tomas Winklere227cea2008-07-18 13:53:05 +08004491 iwlagn_rate_control_unregister();
Zhu Yib481de92007-09-25 17:54:57 -07004492}
4493
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -07004494module_exit(iwl_exit);
4495module_init(iwl_init);
Reinette Chatrea562a9d2009-07-17 09:30:24 -07004496
4497#ifdef CONFIG_IWLWIFI_DEBUG
Wey-Yi Guy4e30cb62009-09-17 10:43:47 -07004498module_param_named(debug50, iwl_debug_level, uint, S_IRUGO);
Reinette Chatrea562a9d2009-07-17 09:30:24 -07004499MODULE_PARM_DESC(debug50, "50XX debug output mask (deprecated)");
Wey-Yi Guy4e30cb62009-09-17 10:43:47 -07004500module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR);
Reinette Chatrea562a9d2009-07-17 09:30:24 -07004501MODULE_PARM_DESC(debug, "debug output mask");
4502#endif
4503
Wey-Yi Guy2b068612010-03-22 09:17:39 -07004504module_param_named(swcrypto50, iwlagn_mod_params.sw_crypto, bool, S_IRUGO);
4505MODULE_PARM_DESC(swcrypto50,
4506 "using crypto in software (default 0 [hardware]) (deprecated)");
4507module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
4508MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
4509module_param_named(queues_num50,
4510 iwlagn_mod_params.num_of_queues, int, S_IRUGO);
4511MODULE_PARM_DESC(queues_num50,
4512 "number of hw queues in 50xx series (deprecated)");
4513module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
4514MODULE_PARM_DESC(queues_num, "number of hw queues.");
4515module_param_named(11n_disable50, iwlagn_mod_params.disable_11n, int, S_IRUGO);
4516MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality (deprecated)");
4517module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
4518MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
4519module_param_named(amsdu_size_8K50, iwlagn_mod_params.amsdu_size_8K,
4520 int, S_IRUGO);
4521MODULE_PARM_DESC(amsdu_size_8K50,
4522 "enable 8K amsdu size in 50XX series (deprecated)");
4523module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
4524 int, S_IRUGO);
4525MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
4526module_param_named(fw_restart50, iwlagn_mod_params.restart_fw, int, S_IRUGO);
4527MODULE_PARM_DESC(fw_restart50,
4528 "restart firmware in case of error (deprecated)");
4529module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
4530MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
4531module_param_named(
4532 disable_hw_scan, iwlagn_mod_params.disable_hw_scan, int, S_IRUGO);
Wey-Yi Guy72645ef2010-10-06 07:42:43 -07004533MODULE_PARM_DESC(disable_hw_scan,
4534 "disable hardware scanning (default 0) (deprecated)");
Johannes Bergdd7a2502010-04-28 23:33:10 -07004535
4536module_param_named(ucode_alternative, iwlagn_wanted_ucode_alternative, int,
4537 S_IRUGO);
4538MODULE_PARM_DESC(ucode_alternative,
4539 "specify ucode alternative to use from ucode file");
Wey-Yi Guybee008b2010-08-23 07:57:04 -07004540
4541module_param_named(antenna_coupling, iwlagn_ant_coupling, int, S_IRUGO);
4542MODULE_PARM_DESC(antenna_coupling,
4543 "specify antenna coupling in dB (defualt: 0 dB)");
Wey-Yi Guyf37837c2010-08-23 07:57:12 -07004544
Wey-Yi Guy9f28ebc2010-11-26 13:24:19 -08004545module_param_named(bt_ch_inhibition, iwlagn_bt_ch_announce, bool, S_IRUGO);
4546MODULE_PARM_DESC(bt_ch_inhibition,
4547 "Disable BT channel inhibition (default: enable)");
Stanislaw Gruszkab7977ff2011-02-28 14:33:15 +01004548
4549module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
4550MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
4551
4552module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
4553MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");