1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
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.
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
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
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/dma-mapping.h>
34 #include <linux/delay.h>
35 #include <linux/sched.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/firmware.h>
39 #include <linux/etherdevice.h>
40 #include <linux/if_arp.h>
42 #include <net/mac80211.h>
44 #include <asm/div64.h>
46 #include "iwl-eeprom.h"
50 #include "iwl-agn-calib.h"
52 #include "iwl-shared.h"
54 #include "iwl-trans.h"
56 /******************************************************************************
60 ******************************************************************************/
63 * module name, copyright, version, etc.
65 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
67 #ifdef CONFIG_IWLWIFI_DEBUG
73 #define DRV_VERSION IWLWIFI_VERSION VD
76 MODULE_DESCRIPTION(DRV_DESCRIPTION);
77 MODULE_VERSION(DRV_VERSION);
78 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
79 MODULE_LICENSE("GPL");
80 MODULE_ALIAS("iwlagn");
82 void iwl_update_chain_flags(struct iwl_priv *priv)
84 struct iwl_rxon_context *ctx;
86 for_each_context(priv, ctx) {
87 iwlagn_set_rxon_chain(priv, ctx);
88 if (ctx->active.rx_chain != ctx->staging.rx_chain)
89 iwlagn_commit_rxon(priv, ctx);
93 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
94 static void iwl_set_beacon_tim(struct iwl_priv *priv,
95 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
96 u8 *beacon, u32 frame_size)
99 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
102 * The index is relative to frame start but we start looking at the
103 * variable-length part of the beacon.
105 tim_idx = mgmt->u.beacon.variable - beacon;
107 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
108 while ((tim_idx < (frame_size - 2)) &&
109 (beacon[tim_idx] != WLAN_EID_TIM))
110 tim_idx += beacon[tim_idx+1] + 2;
112 /* If TIM field was found, set variables */
113 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
114 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
115 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
117 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
120 int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
122 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
123 struct iwl_host_cmd cmd = {
124 .id = REPLY_TX_BEACON,
127 struct ieee80211_tx_info *info;
133 * We have to set up the TX command, the TX Beacon command, and the
137 lockdep_assert_held(&priv->shrd->mutex);
139 if (!priv->beacon_ctx) {
140 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
144 if (WARN_ON(!priv->beacon_skb))
147 /* Allocate beacon command */
148 if (!priv->beacon_cmd)
149 priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
150 tx_beacon_cmd = priv->beacon_cmd;
154 frame_size = priv->beacon_skb->len;
156 /* Set up TX command fields */
157 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
158 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
159 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
160 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
161 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
163 /* Set up TX beacon command fields */
164 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
167 /* Set up packet rate and flags */
168 info = IEEE80211_SKB_CB(priv->beacon_skb);
171 * Let's set up the rate at least somewhat correctly;
172 * it will currently not actually be used by the uCode,
173 * it uses the broadcast station's rate instead.
175 if (info->control.rates[0].idx < 0 ||
176 info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
179 rate = info->control.rates[0].idx;
181 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
182 hw_params(priv).valid_tx_ant);
183 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
185 /* In mac80211, rates for 5 GHz start at 0 */
186 if (info->band == IEEE80211_BAND_5GHZ)
187 rate += IWL_FIRST_OFDM_RATE;
188 else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE)
189 rate_flags |= RATE_MCS_CCK_MSK;
191 tx_beacon_cmd->tx.rate_n_flags =
192 iwl_hw_set_rate_n_flags(rate, rate_flags);
195 cmd.len[0] = sizeof(*tx_beacon_cmd);
196 cmd.data[0] = tx_beacon_cmd;
197 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
198 cmd.len[1] = frame_size;
199 cmd.data[1] = priv->beacon_skb->data;
200 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
202 return iwl_trans_send_cmd(trans(priv), &cmd);
205 static void iwl_bg_beacon_update(struct work_struct *work)
207 struct iwl_priv *priv =
208 container_of(work, struct iwl_priv, beacon_update);
209 struct sk_buff *beacon;
211 mutex_lock(&priv->shrd->mutex);
212 if (!priv->beacon_ctx) {
213 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
217 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
219 * The ucode will send beacon notifications even in
220 * IBSS mode, but we don't want to process them. But
221 * we need to defer the type check to here due to
222 * requiring locking around the beacon_ctx access.
227 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
228 beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
230 IWL_ERR(priv, "update beacon failed -- keeping old\n");
234 /* new beacon skb is allocated every time; dispose previous.*/
235 dev_kfree_skb(priv->beacon_skb);
237 priv->beacon_skb = beacon;
239 iwlagn_send_beacon_cmd(priv);
241 mutex_unlock(&priv->shrd->mutex);
244 static void iwl_bg_bt_runtime_config(struct work_struct *work)
246 struct iwl_priv *priv =
247 container_of(work, struct iwl_priv, bt_runtime_config);
249 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
252 /* dont send host command if rf-kill is on */
253 if (!iwl_is_ready_rf(priv->shrd))
255 iwlagn_send_advance_bt_config(priv);
258 static void iwl_bg_bt_full_concurrency(struct work_struct *work)
260 struct iwl_priv *priv =
261 container_of(work, struct iwl_priv, bt_full_concurrency);
262 struct iwl_rxon_context *ctx;
264 mutex_lock(&priv->shrd->mutex);
266 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
269 /* dont send host command if rf-kill is on */
270 if (!iwl_is_ready_rf(priv->shrd))
273 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
274 priv->bt_full_concurrent ?
275 "full concurrency" : "3-wire");
278 * LQ & RXON updated cmds must be sent before BT Config cmd
279 * to avoid 3-wire collisions
281 for_each_context(priv, ctx) {
282 iwlagn_set_rxon_chain(priv, ctx);
283 iwlagn_commit_rxon(priv, ctx);
286 iwlagn_send_advance_bt_config(priv);
288 mutex_unlock(&priv->shrd->mutex);
292 * iwl_bg_statistics_periodic - Timer callback to queue statistics
294 * This callback is provided in order to send a statistics request.
296 * This timer function is continually reset to execute within
297 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
298 * was received. We need to ensure we receive the statistics in order
299 * to update the temperature used for calibrating the TXPOWER.
301 static void iwl_bg_statistics_periodic(unsigned long data)
303 struct iwl_priv *priv = (struct iwl_priv *)data;
305 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
308 /* dont send host command if rf-kill is on */
309 if (!iwl_is_ready_rf(priv->shrd))
312 iwl_send_statistics_request(priv, CMD_ASYNC, false);
316 static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
317 u32 start_idx, u32 num_events,
321 u32 ptr; /* SRAM byte address of log data */
322 u32 ev, time, data; /* event log data */
323 unsigned long reg_flags;
326 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
328 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
330 /* Make sure device is powered up for SRAM reads */
331 spin_lock_irqsave(&bus(priv)->reg_lock, reg_flags);
332 if (iwl_grab_nic_access(bus(priv))) {
333 spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
337 /* Set starting address; reads will auto-increment */
338 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, ptr);
342 * "time" is actually "data" for mode 0 (no timestamp).
343 * place event id # at far right for easier visual parsing.
345 for (i = 0; i < num_events; i++) {
346 ev = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
347 time = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
349 trace_iwlwifi_dev_ucode_cont_event(priv,
352 data = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
353 trace_iwlwifi_dev_ucode_cont_event(priv,
357 /* Allow device to power down */
358 iwl_release_nic_access(bus(priv));
359 spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
362 static void iwl_continuous_event_trace(struct iwl_priv *priv)
364 u32 capacity; /* event log capacity in # entries */
365 u32 base; /* SRAM byte address of event log header */
366 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
367 u32 num_wraps; /* # times uCode wrapped to top of log */
368 u32 next_entry; /* index of next entry to be written by uCode */
370 base = priv->device_pointers.error_event_table;
371 if (iwlagn_hw_valid_rtc_data_addr(base)) {
372 capacity = iwl_read_targ_mem(bus(priv), base);
373 num_wraps = iwl_read_targ_mem(bus(priv),
374 base + (2 * sizeof(u32)));
375 mode = iwl_read_targ_mem(bus(priv), base + (1 * sizeof(u32)));
376 next_entry = iwl_read_targ_mem(bus(priv),
377 base + (3 * sizeof(u32)));
381 if (num_wraps == priv->event_log.num_wraps) {
382 iwl_print_cont_event_trace(priv,
383 base, priv->event_log.next_entry,
384 next_entry - priv->event_log.next_entry,
386 priv->event_log.non_wraps_count++;
388 if ((num_wraps - priv->event_log.num_wraps) > 1)
389 priv->event_log.wraps_more_count++;
391 priv->event_log.wraps_once_count++;
392 trace_iwlwifi_dev_ucode_wrap_event(priv,
393 num_wraps - priv->event_log.num_wraps,
394 next_entry, priv->event_log.next_entry);
395 if (next_entry < priv->event_log.next_entry) {
396 iwl_print_cont_event_trace(priv, base,
397 priv->event_log.next_entry,
398 capacity - priv->event_log.next_entry,
401 iwl_print_cont_event_trace(priv, base, 0,
404 iwl_print_cont_event_trace(priv, base,
405 next_entry, capacity - next_entry,
408 iwl_print_cont_event_trace(priv, base, 0,
412 priv->event_log.num_wraps = num_wraps;
413 priv->event_log.next_entry = next_entry;
417 * iwl_bg_ucode_trace - Timer callback to log ucode event
419 * The timer is continually set to execute every
420 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
421 * this function is to perform continuous uCode event logging operation
424 static void iwl_bg_ucode_trace(unsigned long data)
426 struct iwl_priv *priv = (struct iwl_priv *)data;
428 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
431 if (priv->event_log.ucode_trace) {
432 iwl_continuous_event_trace(priv);
433 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
434 mod_timer(&priv->ucode_trace,
435 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
439 static void iwl_bg_tx_flush(struct work_struct *work)
441 struct iwl_priv *priv =
442 container_of(work, struct iwl_priv, tx_flush);
444 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
447 /* do nothing if rf-kill is on */
448 if (!iwl_is_ready_rf(priv->shrd))
451 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
452 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
455 /******************************************************************************
457 * uCode download functions
459 ******************************************************************************/
461 static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc)
464 dma_free_coherent(bus(priv)->dev, desc->len,
465 desc->v_addr, desc->p_addr);
470 static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img)
472 iwl_free_fw_desc(priv, &img->code);
473 iwl_free_fw_desc(priv, &img->data);
476 static void iwl_dealloc_ucode(struct iwl_priv *priv)
478 iwl_free_fw_img(priv, &priv->ucode_rt);
479 iwl_free_fw_img(priv, &priv->ucode_init);
480 iwl_free_fw_img(priv, &priv->ucode_wowlan);
483 static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc,
484 const void *data, size_t len)
491 desc->v_addr = dma_alloc_coherent(bus(priv)->dev, len,
492 &desc->p_addr, GFP_KERNEL);
497 memcpy(desc->v_addr, data, len);
501 static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
506 * The default context is always valid,
507 * the PAN context depends on uCode.
509 priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS);
510 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
511 priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
513 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
514 priv->contexts[i].ctxid = i;
516 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
517 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
518 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
519 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
520 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
521 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
522 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
523 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
524 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
525 BIT(NL80211_IFTYPE_ADHOC);
526 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
527 BIT(NL80211_IFTYPE_STATION);
528 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
529 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
530 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
531 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
533 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
534 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
535 REPLY_WIPAN_RXON_TIMING;
536 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
537 REPLY_WIPAN_RXON_ASSOC;
538 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
539 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
540 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
541 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
542 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
543 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
544 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
546 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
547 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
548 BIT(NL80211_IFTYPE_P2P_CLIENT) |
549 BIT(NL80211_IFTYPE_P2P_GO);
551 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
552 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
553 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
555 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
559 struct iwlagn_ucode_capabilities {
560 u32 max_probe_length;
561 u32 standard_phy_calibration_size;
565 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
566 static int iwlagn_mac_setup_register(struct iwl_priv *priv,
567 struct iwlagn_ucode_capabilities *capa);
569 #define UCODE_EXPERIMENTAL_INDEX 100
570 #define UCODE_EXPERIMENTAL_TAG "exp"
572 static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
574 const char *name_pre = priv->cfg->fw_name_pre;
578 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
579 priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
580 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
581 } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
583 priv->fw_index = priv->cfg->ucode_api_max;
584 sprintf(tag, "%d", priv->fw_index);
587 sprintf(tag, "%d", priv->fw_index);
590 if (priv->fw_index < priv->cfg->ucode_api_min) {
591 IWL_ERR(priv, "no suitable firmware found!\n");
595 sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
597 IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
598 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
599 ? "EXPERIMENTAL " : "",
600 priv->firmware_name);
602 return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
604 GFP_KERNEL, priv, iwl_ucode_callback);
607 struct iwlagn_firmware_pieces {
608 const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
609 size_t inst_size, data_size, init_size, init_data_size,
610 wowlan_inst_size, wowlan_data_size;
614 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
615 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
618 static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
619 const struct firmware *ucode_raw,
620 struct iwlagn_firmware_pieces *pieces)
622 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
623 u32 api_ver, hdr_size;
626 priv->ucode_ver = le32_to_cpu(ucode->ver);
627 api_ver = IWL_UCODE_API(priv->ucode_ver);
632 if (ucode_raw->size < hdr_size) {
633 IWL_ERR(priv, "File size too small!\n");
636 pieces->build = le32_to_cpu(ucode->u.v2.build);
637 pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
638 pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
639 pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
640 pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
641 src = ucode->u.v2.data;
647 if (ucode_raw->size < hdr_size) {
648 IWL_ERR(priv, "File size too small!\n");
652 pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
653 pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
654 pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
655 pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
656 src = ucode->u.v1.data;
660 /* Verify size of file vs. image size info in file's header */
661 if (ucode_raw->size != hdr_size + pieces->inst_size +
662 pieces->data_size + pieces->init_size +
663 pieces->init_data_size) {
666 "uCode file size %d does not match expected size\n",
667 (int)ucode_raw->size);
672 src += pieces->inst_size;
674 src += pieces->data_size;
676 src += pieces->init_size;
677 pieces->init_data = src;
678 src += pieces->init_data_size;
683 static int iwlagn_load_firmware(struct iwl_priv *priv,
684 const struct firmware *ucode_raw,
685 struct iwlagn_firmware_pieces *pieces,
686 struct iwlagn_ucode_capabilities *capa)
688 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
689 struct iwl_ucode_tlv *tlv;
690 size_t len = ucode_raw->size;
692 int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
696 enum iwl_ucode_tlv_type tlv_type;
699 if (len < sizeof(*ucode)) {
700 IWL_ERR(priv, "uCode has invalid length: %zd\n", len);
704 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
705 IWL_ERR(priv, "invalid uCode magic: 0X%x\n",
706 le32_to_cpu(ucode->magic));
711 * Check which alternatives are present, and "downgrade"
712 * when the chosen alternative is not present, warning
713 * the user when that happens. Some files may not have
714 * any alternatives, so don't warn in that case.
716 alternatives = le64_to_cpu(ucode->alternatives);
717 tmp = wanted_alternative;
718 if (wanted_alternative > 63)
719 wanted_alternative = 63;
720 while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
721 wanted_alternative--;
722 if (wanted_alternative && wanted_alternative != tmp)
724 "uCode alternative %d not available, choosing %d\n",
725 tmp, wanted_alternative);
727 priv->ucode_ver = le32_to_cpu(ucode->ver);
728 pieces->build = le32_to_cpu(ucode->build);
731 len -= sizeof(*ucode);
733 while (len >= sizeof(*tlv)) {
739 tlv_len = le32_to_cpu(tlv->length);
740 tlv_type = le16_to_cpu(tlv->type);
741 tlv_alt = le16_to_cpu(tlv->alternative);
742 tlv_data = tlv->data;
745 IWL_ERR(priv, "invalid TLV len: %zd/%u\n",
749 len -= ALIGN(tlv_len, 4);
750 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
753 * Alternative 0 is always valid.
755 * Skip alternative TLVs that are not selected.
757 if (tlv_alt != 0 && tlv_alt != wanted_alternative)
761 case IWL_UCODE_TLV_INST:
762 pieces->inst = tlv_data;
763 pieces->inst_size = tlv_len;
765 case IWL_UCODE_TLV_DATA:
766 pieces->data = tlv_data;
767 pieces->data_size = tlv_len;
769 case IWL_UCODE_TLV_INIT:
770 pieces->init = tlv_data;
771 pieces->init_size = tlv_len;
773 case IWL_UCODE_TLV_INIT_DATA:
774 pieces->init_data = tlv_data;
775 pieces->init_data_size = tlv_len;
777 case IWL_UCODE_TLV_BOOT:
778 IWL_ERR(priv, "Found unexpected BOOT ucode\n");
780 case IWL_UCODE_TLV_PROBE_MAX_LEN:
781 if (tlv_len != sizeof(u32))
782 goto invalid_tlv_len;
783 capa->max_probe_length =
784 le32_to_cpup((__le32 *)tlv_data);
786 case IWL_UCODE_TLV_PAN:
788 goto invalid_tlv_len;
789 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
791 case IWL_UCODE_TLV_FLAGS:
792 /* must be at least one u32 */
793 if (tlv_len < sizeof(u32))
794 goto invalid_tlv_len;
795 /* and a proper number of u32s */
796 if (tlv_len % sizeof(u32))
797 goto invalid_tlv_len;
799 * This driver only reads the first u32 as
800 * right now no more features are defined,
801 * if that changes then either the driver
802 * will not work with the new firmware, or
803 * it'll not take advantage of new features.
805 capa->flags = le32_to_cpup((__le32 *)tlv_data);
807 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
808 if (tlv_len != sizeof(u32))
809 goto invalid_tlv_len;
810 pieces->init_evtlog_ptr =
811 le32_to_cpup((__le32 *)tlv_data);
813 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
814 if (tlv_len != sizeof(u32))
815 goto invalid_tlv_len;
816 pieces->init_evtlog_size =
817 le32_to_cpup((__le32 *)tlv_data);
819 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
820 if (tlv_len != sizeof(u32))
821 goto invalid_tlv_len;
822 pieces->init_errlog_ptr =
823 le32_to_cpup((__le32 *)tlv_data);
825 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
826 if (tlv_len != sizeof(u32))
827 goto invalid_tlv_len;
828 pieces->inst_evtlog_ptr =
829 le32_to_cpup((__le32 *)tlv_data);
831 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
832 if (tlv_len != sizeof(u32))
833 goto invalid_tlv_len;
834 pieces->inst_evtlog_size =
835 le32_to_cpup((__le32 *)tlv_data);
837 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
838 if (tlv_len != sizeof(u32))
839 goto invalid_tlv_len;
840 pieces->inst_errlog_ptr =
841 le32_to_cpup((__le32 *)tlv_data);
843 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
845 goto invalid_tlv_len;
846 priv->enhance_sensitivity_table = true;
848 case IWL_UCODE_TLV_WOWLAN_INST:
849 pieces->wowlan_inst = tlv_data;
850 pieces->wowlan_inst_size = tlv_len;
852 case IWL_UCODE_TLV_WOWLAN_DATA:
853 pieces->wowlan_data = tlv_data;
854 pieces->wowlan_data_size = tlv_len;
856 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
857 if (tlv_len != sizeof(u32))
858 goto invalid_tlv_len;
859 capa->standard_phy_calibration_size =
860 le32_to_cpup((__le32 *)tlv_data);
863 IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type);
869 IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len);
870 iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len);
877 IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
878 iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len);
884 * iwl_ucode_callback - callback when firmware was loaded
886 * If loaded successfully, copies the firmware into buffers
887 * for the card to fetch (via DMA).
889 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
891 struct iwl_priv *priv = context;
892 struct iwl_ucode_header *ucode;
894 struct iwlagn_firmware_pieces pieces;
895 const unsigned int api_max = priv->cfg->ucode_api_max;
896 unsigned int api_ok = priv->cfg->ucode_api_ok;
897 const unsigned int api_min = priv->cfg->ucode_api_min;
901 struct iwlagn_ucode_capabilities ucode_capa = {
902 .max_probe_length = 200,
903 .standard_phy_calibration_size =
904 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE,
910 memset(&pieces, 0, sizeof(pieces));
913 if (priv->fw_index <= api_ok)
915 "request for firmware file '%s' failed.\n",
916 priv->firmware_name);
920 IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
921 priv->firmware_name, ucode_raw->size);
923 /* Make sure that we got at least the API version number */
924 if (ucode_raw->size < 4) {
925 IWL_ERR(priv, "File size way too small!\n");
929 /* Data from ucode file: header followed by uCode images */
930 ucode = (struct iwl_ucode_header *)ucode_raw->data;
933 err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
935 err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
941 api_ver = IWL_UCODE_API(priv->ucode_ver);
942 build = pieces.build;
945 * api_ver should match the api version forming part of the
946 * firmware filename ... but we don't check for that and only rely
947 * on the API version read from firmware header from here on forward
949 /* no api version check required for experimental uCode */
950 if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
951 if (api_ver < api_min || api_ver > api_max) {
953 "Driver unable to support your firmware API. "
954 "Driver supports v%u, firmware is v%u.\n",
959 if (api_ver < api_ok) {
960 if (api_ok != api_max)
961 IWL_ERR(priv, "Firmware has old API version, "
962 "expected v%u through v%u, got v%u.\n",
963 api_ok, api_max, api_ver);
965 IWL_ERR(priv, "Firmware has old API version, "
966 "expected v%u, got v%u.\n",
968 IWL_ERR(priv, "New firmware can be obtained from "
969 "http://www.intellinuxwireless.org/.\n");
974 sprintf(buildstr, " build %u%s", build,
975 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
980 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
981 IWL_UCODE_MAJOR(priv->ucode_ver),
982 IWL_UCODE_MINOR(priv->ucode_ver),
983 IWL_UCODE_API(priv->ucode_ver),
984 IWL_UCODE_SERIAL(priv->ucode_ver),
987 snprintf(priv->hw->wiphy->fw_version,
988 sizeof(priv->hw->wiphy->fw_version),
990 IWL_UCODE_MAJOR(priv->ucode_ver),
991 IWL_UCODE_MINOR(priv->ucode_ver),
992 IWL_UCODE_API(priv->ucode_ver),
993 IWL_UCODE_SERIAL(priv->ucode_ver),
997 * For any of the failures below (before allocating pci memory)
998 * we will try to load a version with a smaller API -- maybe the
999 * user just got a corrupted version of the latest API.
1002 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1004 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
1006 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
1008 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
1010 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
1011 pieces.init_data_size);
1013 /* Verify that uCode images will fit in card's SRAM */
1014 if (pieces.inst_size > hw_params(priv).max_inst_size) {
1015 IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
1020 if (pieces.data_size > hw_params(priv).max_data_size) {
1021 IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
1026 if (pieces.init_size > hw_params(priv).max_inst_size) {
1027 IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
1032 if (pieces.init_data_size > hw_params(priv).max_data_size) {
1033 IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
1034 pieces.init_data_size);
1038 /* Allocate ucode buffers for card's bus-master loading ... */
1040 /* Runtime instructions and 2 copies of data:
1041 * 1) unmodified from disk
1042 * 2) backup cache for save/restore during power-downs */
1043 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code,
1044 pieces.inst, pieces.inst_size))
1046 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data,
1047 pieces.data, pieces.data_size))
1050 /* Initialization instructions and data */
1051 if (pieces.init_size && pieces.init_data_size) {
1052 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code,
1053 pieces.init, pieces.init_size))
1055 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data,
1056 pieces.init_data, pieces.init_data_size))
1060 /* WoWLAN instructions and data */
1061 if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
1062 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code,
1064 pieces.wowlan_inst_size))
1066 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data,
1068 pieces.wowlan_data_size))
1072 /* Now that we can no longer fail, copy information */
1075 * The (size - 16) / 12 formula is based on the information recorded
1076 * for each event, which is of mode 1 (including timestamp) for all
1077 * new microcodes that include this information.
1079 priv->init_evtlog_ptr = pieces.init_evtlog_ptr;
1080 if (pieces.init_evtlog_size)
1081 priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
1083 priv->init_evtlog_size =
1084 priv->cfg->base_params->max_event_log_size;
1085 priv->init_errlog_ptr = pieces.init_errlog_ptr;
1086 priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
1087 if (pieces.inst_evtlog_size)
1088 priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
1090 priv->inst_evtlog_size =
1091 priv->cfg->base_params->max_event_log_size;
1092 priv->inst_errlog_ptr = pieces.inst_errlog_ptr;
1094 priv->new_scan_threshold_behaviour =
1095 !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1097 if (!(priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1098 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1101 * if not PAN, then don't support P2P -- might be a uCode
1102 * packaging bug or due to the eeprom check above
1104 if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN))
1105 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1107 if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) {
1108 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1109 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1111 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1112 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1116 * figure out the offset of chain noise reset and gain commands
1117 * base on the size of standard phy calibration commands table size
1119 if (ucode_capa.standard_phy_calibration_size >
1120 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1121 ucode_capa.standard_phy_calibration_size =
1122 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1124 priv->phy_calib_chain_noise_reset_cmd =
1125 ucode_capa.standard_phy_calibration_size;
1126 priv->phy_calib_chain_noise_gain_cmd =
1127 ucode_capa.standard_phy_calibration_size + 1;
1129 /* initialize all valid contexts */
1130 iwl_init_context(priv, ucode_capa.flags);
1132 /**************************************************
1133 * This is still part of probe() in a sense...
1135 * 9. Setup and register with mac80211 and debugfs
1136 **************************************************/
1137 err = iwlagn_mac_setup_register(priv, &ucode_capa);
1141 err = iwl_dbgfs_register(priv, DRV_NAME);
1143 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
1145 /* We have our copies now, allow OS release its copies */
1146 release_firmware(ucode_raw);
1147 complete(&priv->firmware_loading_complete);
1151 /* try next, if any */
1152 if (iwl_request_firmware(priv, false))
1154 release_firmware(ucode_raw);
1158 IWL_ERR(priv, "failed to allocate pci memory\n");
1159 iwl_dealloc_ucode(priv);
1161 complete(&priv->firmware_loading_complete);
1162 device_release_driver(bus(priv)->dev);
1163 release_firmware(ucode_raw);
1166 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
1168 struct iwl_ct_kill_config cmd;
1169 struct iwl_ct_kill_throttling_config adv_cmd;
1170 unsigned long flags;
1173 spin_lock_irqsave(&priv->shrd->lock, flags);
1174 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
1175 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
1176 spin_unlock_irqrestore(&priv->shrd->lock, flags);
1177 priv->thermal_throttle.ct_kill_toggle = false;
1179 if (priv->cfg->base_params->support_ct_kill_exit) {
1180 adv_cmd.critical_temperature_enter =
1181 cpu_to_le32(hw_params(priv).ct_kill_threshold);
1182 adv_cmd.critical_temperature_exit =
1183 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
1185 ret = iwl_trans_send_cmd_pdu(trans(priv),
1186 REPLY_CT_KILL_CONFIG_CMD,
1187 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
1189 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1191 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
1192 "succeeded, critical temperature enter is %d,"
1194 hw_params(priv).ct_kill_threshold,
1195 hw_params(priv).ct_kill_exit_threshold);
1197 cmd.critical_temperature_R =
1198 cpu_to_le32(hw_params(priv).ct_kill_threshold);
1200 ret = iwl_trans_send_cmd_pdu(trans(priv),
1201 REPLY_CT_KILL_CONFIG_CMD,
1202 CMD_SYNC, sizeof(cmd), &cmd);
1204 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1206 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
1208 "critical temperature is %d\n",
1209 hw_params(priv).ct_kill_threshold);
1213 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
1215 struct iwl_calib_cfg_cmd calib_cfg_cmd;
1216 struct iwl_host_cmd cmd = {
1217 .id = CALIBRATION_CFG_CMD,
1218 .len = { sizeof(struct iwl_calib_cfg_cmd), },
1219 .data = { &calib_cfg_cmd, },
1222 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
1223 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
1224 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
1226 return iwl_trans_send_cmd(trans(priv), &cmd);
1230 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
1232 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
1233 .valid = cpu_to_le32(valid_tx_ant),
1236 if (IWL_UCODE_API(priv->ucode_ver) > 1) {
1237 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
1238 return iwl_trans_send_cmd_pdu(trans(priv),
1239 TX_ANT_CONFIGURATION_CMD,
1241 sizeof(struct iwl_tx_ant_config_cmd),
1244 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
1250 * iwl_alive_start - called after REPLY_ALIVE notification received
1251 * from protocol/runtime uCode (initialization uCode's
1252 * Alive gets handled by iwl_init_alive_start()).
1254 int iwl_alive_start(struct iwl_priv *priv)
1257 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1259 /*TODO: this should go to the transport layer */
1260 iwl_reset_ict(trans(priv));
1262 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
1264 /* After the ALIVE response, we can send host commands to the uCode */
1265 set_bit(STATUS_ALIVE, &priv->shrd->status);
1267 /* Enable watchdog to monitor the driver tx queues */
1268 iwl_setup_watchdog(priv);
1270 if (iwl_is_rfkill(priv->shrd))
1273 /* download priority table before any calibration request */
1274 if (priv->cfg->bt_params &&
1275 priv->cfg->bt_params->advanced_bt_coexist) {
1276 /* Configure Bluetooth device coexistence support */
1277 if (priv->cfg->bt_params->bt_sco_disable)
1278 priv->bt_enable_pspoll = false;
1280 priv->bt_enable_pspoll = true;
1282 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1283 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1284 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1285 iwlagn_send_advance_bt_config(priv);
1286 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
1287 priv->cur_rssi_ctx = NULL;
1289 iwlagn_send_prio_tbl(priv);
1291 /* FIXME: w/a to force change uCode BT state machine */
1292 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
1293 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1296 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
1297 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1302 * default is 2-wire BT coexexistence support
1304 iwl_send_bt_config(priv);
1307 if (hw_params(priv).calib_rt_cfg)
1308 iwlagn_send_calib_cfg_rt(priv,
1309 hw_params(priv).calib_rt_cfg);
1311 ieee80211_wake_queues(priv->hw);
1313 priv->active_rate = IWL_RATES_MASK;
1315 /* Configure Tx antenna selection based on H/W config */
1316 iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant);
1318 if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
1319 struct iwl_rxon_cmd *active_rxon =
1320 (struct iwl_rxon_cmd *)&ctx->active;
1321 /* apply any changes in staging */
1322 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
1323 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1325 struct iwl_rxon_context *tmp;
1326 /* Initialize our rx_config data */
1327 for_each_context(priv, tmp)
1328 iwl_connection_init_rx_config(priv, tmp);
1330 iwlagn_set_rxon_chain(priv, ctx);
1333 if (!priv->shrd->wowlan) {
1334 /* WoWLAN ucode will not reply in the same way, skip it */
1335 iwl_reset_run_time_calib(priv);
1338 set_bit(STATUS_READY, &priv->shrd->status);
1340 /* Configure the adapter for unassociated operation */
1341 ret = iwlagn_commit_rxon(priv, ctx);
1345 /* At this point, the NIC is initialized and operational */
1346 iwl_rf_kill_ct_config(priv);
1348 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
1350 return iwl_power_update_mode(priv, true);
1353 static void iwl_cancel_deferred_work(struct iwl_priv *priv);
1355 static void __iwl_down(struct iwl_priv *priv)
1359 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
1361 iwl_scan_cancel_timeout(priv, 200);
1364 * If active, scanning won't cancel it, so say it expired.
1365 * No race since we hold the mutex here and a new one
1366 * can't come in at this time.
1368 ieee80211_remain_on_channel_expired(priv->hw);
1371 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1373 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1374 * to prevent rearm timer */
1375 del_timer_sync(&priv->watchdog);
1377 iwl_clear_ucode_stations(priv, NULL);
1378 iwl_dealloc_bcast_stations(priv);
1379 iwl_clear_driver_stations(priv);
1381 /* reset BT coex data */
1382 priv->bt_status = 0;
1383 priv->cur_rssi_ctx = NULL;
1384 priv->bt_is_sco = 0;
1385 if (priv->cfg->bt_params)
1386 priv->bt_traffic_load =
1387 priv->cfg->bt_params->bt_init_traffic_load;
1389 priv->bt_traffic_load = 0;
1390 priv->bt_full_concurrent = false;
1391 priv->bt_ci_compliance = 0;
1393 /* Wipe out the EXIT_PENDING status bit if we are not actually
1394 * exiting the module */
1396 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1398 if (priv->mac80211_registered)
1399 ieee80211_stop_queues(priv->hw);
1401 iwl_trans_stop_device(trans(priv));
1403 /* Clear out all status bits but a few that are stable across reset */
1404 priv->shrd->status &=
1405 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
1407 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
1408 STATUS_GEO_CONFIGURED |
1409 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
1411 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
1412 STATUS_EXIT_PENDING;
1414 dev_kfree_skb(priv->beacon_skb);
1415 priv->beacon_skb = NULL;
1418 static void iwl_down(struct iwl_priv *priv)
1420 mutex_lock(&priv->shrd->mutex);
1422 mutex_unlock(&priv->shrd->mutex);
1424 iwl_cancel_deferred_work(priv);
1427 #define MAX_HW_RESTARTS 5
1429 static int __iwl_up(struct iwl_priv *priv)
1431 struct iwl_rxon_context *ctx;
1434 lockdep_assert_held(&priv->shrd->mutex);
1436 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
1437 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
1441 for_each_context(priv, ctx) {
1442 ret = iwlagn_alloc_bcast_station(priv, ctx);
1444 iwl_dealloc_bcast_stations(priv);
1449 ret = iwlagn_run_init_ucode(priv);
1451 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
1455 ret = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
1457 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
1461 ret = iwl_alive_start(priv);
1467 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1469 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1471 IWL_ERR(priv, "Unable to initialize device.\n");
1476 /*****************************************************************************
1478 * Workqueue callbacks
1480 *****************************************************************************/
1482 static void iwl_bg_run_time_calib_work(struct work_struct *work)
1484 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1485 run_time_calib_work);
1487 mutex_lock(&priv->shrd->mutex);
1489 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
1490 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
1491 mutex_unlock(&priv->shrd->mutex);
1495 if (priv->start_calib) {
1496 iwl_chain_noise_calibration(priv);
1497 iwl_sensitivity_calibration(priv);
1500 mutex_unlock(&priv->shrd->mutex);
1503 static void iwlagn_prepare_restart(struct iwl_priv *priv)
1505 struct iwl_rxon_context *ctx;
1506 bool bt_full_concurrent;
1507 u8 bt_ci_compliance;
1512 lockdep_assert_held(&priv->shrd->mutex);
1514 for_each_context(priv, ctx)
1519 * __iwl_down() will clear the BT status variables,
1520 * which is correct, but when we restart we really
1521 * want to keep them so restore them afterwards.
1523 * The restart process will later pick them up and
1524 * re-configure the hw when we reconfigure the BT
1527 bt_full_concurrent = priv->bt_full_concurrent;
1528 bt_ci_compliance = priv->bt_ci_compliance;
1529 bt_load = priv->bt_traffic_load;
1530 bt_status = priv->bt_status;
1531 bt_is_sco = priv->bt_is_sco;
1535 priv->bt_full_concurrent = bt_full_concurrent;
1536 priv->bt_ci_compliance = bt_ci_compliance;
1537 priv->bt_traffic_load = bt_load;
1538 priv->bt_status = bt_status;
1539 priv->bt_is_sco = bt_is_sco;
1542 static void iwl_bg_restart(struct work_struct *data)
1544 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
1546 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
1549 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
1550 mutex_lock(&priv->shrd->mutex);
1551 iwlagn_prepare_restart(priv);
1552 mutex_unlock(&priv->shrd->mutex);
1553 iwl_cancel_deferred_work(priv);
1554 ieee80211_restart_hw(priv->hw);
1560 /*****************************************************************************
1562 * mac80211 entry point functions
1564 *****************************************************************************/
1566 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
1569 .types = BIT(NL80211_IFTYPE_STATION),
1573 .types = BIT(NL80211_IFTYPE_AP),
1577 static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
1580 .types = BIT(NL80211_IFTYPE_STATION),
1584 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
1587 .types = BIT(NL80211_IFTYPE_STATION),
1591 .types = BIT(NL80211_IFTYPE_P2P_GO) |
1592 BIT(NL80211_IFTYPE_AP),
1596 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
1599 .types = BIT(NL80211_IFTYPE_STATION),
1603 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
1607 static const struct ieee80211_iface_combination
1608 iwlagn_iface_combinations_dualmode[] = {
1609 { .num_different_channels = 1,
1610 .max_interfaces = 2,
1611 .beacon_int_infra_match = true,
1612 .limits = iwlagn_sta_ap_limits,
1613 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
1615 { .num_different_channels = 1,
1616 .max_interfaces = 2,
1617 .limits = iwlagn_2sta_limits,
1618 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
1622 static const struct ieee80211_iface_combination
1623 iwlagn_iface_combinations_p2p[] = {
1624 { .num_different_channels = 1,
1625 .max_interfaces = 2,
1626 .beacon_int_infra_match = true,
1627 .limits = iwlagn_p2p_sta_go_limits,
1628 .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
1630 { .num_different_channels = 1,
1631 .max_interfaces = 2,
1632 .limits = iwlagn_p2p_2sta_limits,
1633 .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
1638 * Not a mac80211 entry point function, but it fits in with all the
1639 * other mac80211 functions grouped here.
1641 static int iwlagn_mac_setup_register(struct iwl_priv *priv,
1642 struct iwlagn_ucode_capabilities *capa)
1645 struct ieee80211_hw *hw = priv->hw;
1646 struct iwl_rxon_context *ctx;
1648 hw->rate_control_algorithm = "iwl-agn-rs";
1650 /* Tell mac80211 our characteristics */
1651 hw->flags = IEEE80211_HW_SIGNAL_DBM |
1652 IEEE80211_HW_AMPDU_AGGREGATION |
1653 IEEE80211_HW_NEED_DTIM_PERIOD |
1654 IEEE80211_HW_SPECTRUM_MGMT |
1655 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
1658 * Including the following line will crash some AP's. This
1659 * workaround removes the stimulus which causes the crash until
1660 * the AP software can be fixed.
1661 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
1664 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
1665 IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
1667 if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
1668 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1669 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
1671 if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
1672 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
1674 hw->sta_data_size = sizeof(struct iwl_station_priv);
1675 hw->vif_data_size = sizeof(struct iwl_vif_priv);
1677 for_each_context(priv, ctx) {
1678 hw->wiphy->interface_modes |= ctx->interface_modes;
1679 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
1682 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
1684 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
1685 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
1686 hw->wiphy->n_iface_combinations =
1687 ARRAY_SIZE(iwlagn_iface_combinations_p2p);
1688 } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
1689 hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode;
1690 hw->wiphy->n_iface_combinations =
1691 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
1694 hw->wiphy->max_remain_on_channel_duration = 1000;
1696 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
1697 WIPHY_FLAG_DISABLE_BEACON_HINTS |
1698 WIPHY_FLAG_IBSS_RSN;
1700 if (priv->ucode_wowlan.code.len && device_can_wakeup(bus(priv)->dev)) {
1701 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
1702 WIPHY_WOWLAN_DISCONNECT |
1703 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
1704 WIPHY_WOWLAN_RFKILL_RELEASE;
1705 if (!iwlagn_mod_params.sw_crypto)
1706 hw->wiphy->wowlan.flags |=
1707 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
1708 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
1710 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
1711 hw->wiphy->wowlan.pattern_min_len =
1712 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
1713 hw->wiphy->wowlan.pattern_max_len =
1714 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
1717 if (iwlagn_mod_params.power_save)
1718 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
1720 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
1722 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
1723 /* we create the 802.11 header and a zero-length SSID element */
1724 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
1726 /* Default value; 4 EDCA QOS priorities */
1729 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
1731 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
1732 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
1733 &priv->bands[IEEE80211_BAND_2GHZ];
1734 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
1735 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1736 &priv->bands[IEEE80211_BAND_5GHZ];
1738 iwl_leds_init(priv);
1740 ret = ieee80211_register_hw(priv->hw);
1742 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
1745 priv->mac80211_registered = 1;
1751 static int iwlagn_mac_start(struct ieee80211_hw *hw)
1753 struct iwl_priv *priv = hw->priv;
1756 IWL_DEBUG_MAC80211(priv, "enter\n");
1758 /* we should be verifying the device is ready to be opened */
1759 mutex_lock(&priv->shrd->mutex);
1760 ret = __iwl_up(priv);
1761 mutex_unlock(&priv->shrd->mutex);
1765 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
1767 /* Now we should be done, and the READY bit should be set. */
1768 if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status)))
1771 iwlagn_led_enable(priv);
1774 IWL_DEBUG_MAC80211(priv, "leave\n");
1778 static void iwlagn_mac_stop(struct ieee80211_hw *hw)
1780 struct iwl_priv *priv = hw->priv;
1782 IWL_DEBUG_MAC80211(priv, "enter\n");
1791 flush_workqueue(priv->shrd->workqueue);
1793 /* User space software may expect getting rfkill changes
1794 * even if interface is down */
1795 iwl_write32(bus(priv), CSR_INT, 0xFFFFFFFF);
1796 iwl_enable_rfkill_int(priv);
1798 IWL_DEBUG_MAC80211(priv, "leave\n");
1801 #ifdef CONFIG_PM_SLEEP
1802 static int iwlagn_send_patterns(struct iwl_priv *priv,
1803 struct cfg80211_wowlan *wowlan)
1805 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
1806 struct iwl_host_cmd cmd = {
1807 .id = REPLY_WOWLAN_PATTERNS,
1808 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1813 if (!wowlan->n_patterns)
1816 cmd.len[0] = sizeof(*pattern_cmd) +
1817 wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
1819 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
1823 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
1825 for (i = 0; i < wowlan->n_patterns; i++) {
1826 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
1828 memcpy(&pattern_cmd->patterns[i].mask,
1829 wowlan->patterns[i].mask, mask_len);
1830 memcpy(&pattern_cmd->patterns[i].pattern,
1831 wowlan->patterns[i].pattern,
1832 wowlan->patterns[i].pattern_len);
1833 pattern_cmd->patterns[i].mask_size = mask_len;
1834 pattern_cmd->patterns[i].pattern_size =
1835 wowlan->patterns[i].pattern_len;
1838 cmd.data[0] = pattern_cmd;
1839 err = iwl_trans_send_cmd(trans(priv), &cmd);
1845 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
1846 struct ieee80211_vif *vif,
1847 struct cfg80211_gtk_rekey_data *data)
1849 struct iwl_priv *priv = hw->priv;
1851 if (iwlagn_mod_params.sw_crypto)
1854 IWL_DEBUG_MAC80211(priv, "enter\n");
1855 mutex_lock(&priv->shrd->mutex);
1857 if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
1860 memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
1861 memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
1862 priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
1863 priv->have_rekey_data = true;
1866 mutex_unlock(&priv->shrd->mutex);
1867 IWL_DEBUG_MAC80211(priv, "leave\n");
1870 struct wowlan_key_data {
1871 struct iwl_rxon_context *ctx;
1872 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
1873 struct iwlagn_wowlan_tkip_params_cmd *tkip;
1875 bool error, use_rsc_tsc, use_tkip;
1878 #ifdef CONFIG_PM_SLEEP
1879 static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
1883 for (i = 0; i < IWLAGN_P1K_SIZE; i++)
1884 out[i] = cpu_to_le16(p1k[i]);
1887 static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
1888 struct ieee80211_vif *vif,
1889 struct ieee80211_sta *sta,
1890 struct ieee80211_key_conf *key,
1893 struct iwl_priv *priv = hw->priv;
1894 struct wowlan_key_data *data = _data;
1895 struct iwl_rxon_context *ctx = data->ctx;
1896 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
1897 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
1898 struct iwlagn_p1k_cache *rx_p1ks;
1900 struct ieee80211_key_seq seq;
1901 u32 cur_rx_iv32 = 0;
1902 u16 p1k[IWLAGN_P1K_SIZE];
1905 mutex_lock(&priv->shrd->mutex);
1907 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
1908 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
1909 !sta && !ctx->key_mapping_keys)
1910 ret = iwl_set_default_wep_key(priv, ctx, key);
1912 ret = iwl_set_dynamic_key(priv, ctx, key, sta);
1915 IWL_ERR(priv, "Error setting key during suspend!\n");
1919 switch (key->cipher) {
1920 case WLAN_CIPHER_SUITE_TKIP:
1922 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
1923 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
1925 rx_p1ks = data->tkip->rx_uni;
1927 ieee80211_get_key_tx_seq(key, &seq);
1928 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
1929 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
1931 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
1932 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
1934 memcpy(data->tkip->mic_keys.tx,
1935 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
1936 IWLAGN_MIC_KEY_SIZE);
1938 rx_mic_key = data->tkip->mic_keys.rx_unicast;
1940 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
1941 rx_p1ks = data->tkip->rx_multi;
1942 rx_mic_key = data->tkip->mic_keys.rx_mcast;
1946 * For non-QoS this relies on the fact that both the uCode and
1947 * mac80211 use TID 0 (as they need to to avoid replay attacks)
1948 * for checking the IV in the frames.
1950 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
1951 ieee80211_get_key_rx_seq(key, i, &seq);
1952 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
1953 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
1954 /* wrapping isn't allowed, AP must rekey */
1955 if (seq.tkip.iv32 > cur_rx_iv32)
1956 cur_rx_iv32 = seq.tkip.iv32;
1959 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
1960 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
1961 ieee80211_get_tkip_rx_p1k(key, data->bssid,
1962 cur_rx_iv32 + 1, p1k);
1963 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
1966 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
1967 IWLAGN_MIC_KEY_SIZE);
1969 data->use_tkip = true;
1970 data->use_rsc_tsc = true;
1972 case WLAN_CIPHER_SUITE_CCMP:
1974 u8 *pn = seq.ccmp.pn;
1976 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
1977 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
1979 ieee80211_get_key_tx_seq(key, &seq);
1980 aes_tx_sc->pn = cpu_to_le64(
1983 ((u64)pn[3] << 16) |
1984 ((u64)pn[2] << 24) |
1985 ((u64)pn[1] << 32) |
1986 ((u64)pn[0] << 40));
1988 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
1991 * For non-QoS this relies on the fact that both the uCode and
1992 * mac80211 use TID 0 for checking the IV in the frames.
1994 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
1995 u8 *pn = seq.ccmp.pn;
1997 ieee80211_get_key_rx_seq(key, i, &seq);
1998 aes_sc->pn = cpu_to_le64(
2001 ((u64)pn[3] << 16) |
2002 ((u64)pn[2] << 24) |
2003 ((u64)pn[1] << 32) |
2004 ((u64)pn[0] << 40));
2006 data->use_rsc_tsc = true;
2010 mutex_unlock(&priv->shrd->mutex);
2013 static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
2014 struct cfg80211_wowlan *wowlan)
2016 struct iwl_priv *priv = hw->priv;
2017 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
2018 struct iwl_rxon_cmd rxon;
2019 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2020 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
2021 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
2022 struct wowlan_key_data key_data = {
2024 .bssid = ctx->active.bssid_addr,
2025 .use_rsc_tsc = false,
2029 struct iwlagn_d3_config_cmd d3_cfg_cmd = {};
2033 if (WARN_ON(!wowlan))
2036 IWL_DEBUG_MAC80211(priv, "enter\n");
2037 mutex_lock(&priv->shrd->mutex);
2039 /* Don't attempt WoWLAN when not associated, tear down instead. */
2040 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
2041 !iwl_is_associated_ctx(ctx)) {
2046 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
2047 if (!key_data.rsc_tsc) {
2052 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
2055 * We know the last used seqno, and the uCode expects to know that
2056 * one, it will increment before TX.
2058 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
2059 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
2062 * For QoS counters, we store the one to use next, so subtract 0x10
2063 * since the uCode will add 0x10 before using the value.
2065 for (i = 0; i < 8; i++) {
2066 seq = priv->shrd->tid_data[IWL_AP_ID][i].seq_number;
2068 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
2071 if (wowlan->disconnect)
2072 wakeup_filter_cmd.enabled |=
2073 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
2074 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
2075 if (wowlan->magic_pkt)
2076 wakeup_filter_cmd.enabled |=
2077 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
2078 if (wowlan->gtk_rekey_failure)
2079 wakeup_filter_cmd.enabled |=
2080 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
2081 if (wowlan->eap_identity_req)
2082 wakeup_filter_cmd.enabled |=
2083 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
2084 if (wowlan->four_way_handshake)
2085 wakeup_filter_cmd.enabled |=
2086 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
2087 if (wowlan->n_patterns)
2088 wakeup_filter_cmd.enabled |=
2089 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
2091 if (wowlan->rfkill_release)
2092 d3_cfg_cmd.wakeup_flags |=
2093 cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL);
2095 iwl_scan_cancel_timeout(priv, 200);
2097 memcpy(&rxon, &ctx->active, sizeof(rxon));
2099 iwl_trans_stop_device(trans(priv));
2101 priv->shrd->wowlan = true;
2103 ret = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);
2107 /* now configure WoWLAN ucode */
2108 ret = iwl_alive_start(priv);
2112 memcpy(&ctx->staging, &rxon, sizeof(rxon));
2113 ret = iwlagn_commit_rxon(priv, ctx);
2117 ret = iwl_power_update_mode(priv, true);
2121 if (!iwlagn_mod_params.sw_crypto) {
2122 /* mark all keys clear */
2123 priv->ucode_key_table = 0;
2124 ctx->key_mapping_keys = 0;
2127 * This needs to be unlocked due to lock ordering
2128 * constraints. Since we're in the suspend path
2129 * that isn't really a problem though.
2131 mutex_unlock(&priv->shrd->mutex);
2132 ieee80211_iter_keys(priv->hw, ctx->vif,
2133 iwlagn_wowlan_program_keys,
2135 mutex_lock(&priv->shrd->mutex);
2136 if (key_data.error) {
2141 if (key_data.use_rsc_tsc) {
2142 struct iwl_host_cmd rsc_tsc_cmd = {
2143 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,
2145 .data[0] = key_data.rsc_tsc,
2146 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
2147 .len[0] = sizeof(*key_data.rsc_tsc),
2150 ret = iwl_trans_send_cmd(trans(priv), &rsc_tsc_cmd);
2155 if (key_data.use_tkip) {
2156 ret = iwl_trans_send_cmd_pdu(trans(priv),
2157 REPLY_WOWLAN_TKIP_PARAMS,
2158 CMD_SYNC, sizeof(tkip_cmd),
2164 if (priv->have_rekey_data) {
2165 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
2166 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
2167 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
2168 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
2169 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
2170 kek_kck_cmd.replay_ctr = priv->replay_ctr;
2172 ret = iwl_trans_send_cmd_pdu(trans(priv),
2173 REPLY_WOWLAN_KEK_KCK_MATERIAL,
2174 CMD_SYNC, sizeof(kek_kck_cmd),
2181 ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_D3_CONFIG, CMD_SYNC,
2182 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
2186 ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_WOWLAN_WAKEUP_FILTER,
2187 CMD_SYNC, sizeof(wakeup_filter_cmd),
2188 &wakeup_filter_cmd);
2192 ret = iwlagn_send_patterns(priv, wowlan);
2196 device_set_wakeup_enable(bus(priv)->dev, true);
2198 /* Now let the ucode operate on its own */
2199 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET,
2200 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2205 priv->shrd->wowlan = false;
2206 iwlagn_prepare_restart(priv);
2207 ieee80211_restart_hw(priv->hw);
2209 mutex_unlock(&priv->shrd->mutex);
2210 kfree(key_data.rsc_tsc);
2211 IWL_DEBUG_MAC80211(priv, "leave\n");
2216 static int iwlagn_mac_resume(struct ieee80211_hw *hw)
2218 struct iwl_priv *priv = hw->priv;
2219 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2220 struct ieee80211_vif *vif;
2221 unsigned long flags;
2222 u32 base, status = 0xffffffff;
2225 IWL_DEBUG_MAC80211(priv, "enter\n");
2226 mutex_lock(&priv->shrd->mutex);
2228 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
2229 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2231 base = priv->device_pointers.error_event_table;
2232 if (iwlagn_hw_valid_rtc_data_addr(base)) {
2233 spin_lock_irqsave(&bus(priv)->reg_lock, flags);
2234 ret = iwl_grab_nic_access_silent(bus(priv));
2236 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, base);
2237 status = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
2238 iwl_release_nic_access(bus(priv));
2240 spin_unlock_irqrestore(&bus(priv)->reg_lock, flags);
2242 #ifdef CONFIG_IWLWIFI_DEBUGFS
2244 if (!priv->wowlan_sram)
2246 kzalloc(priv->ucode_wowlan.data.len,
2249 if (priv->wowlan_sram)
2250 _iwl_read_targ_mem_words(
2251 bus(priv), 0x800000, priv->wowlan_sram,
2252 priv->ucode_wowlan.data.len / 4);
2257 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2260 priv->shrd->wowlan = false;
2262 device_set_wakeup_enable(bus(priv)->dev, false);
2264 iwlagn_prepare_restart(priv);
2266 memset((void *)&ctx->active, 0, sizeof(ctx->active));
2267 iwl_connection_init_rx_config(priv, ctx);
2268 iwlagn_set_rxon_chain(priv, ctx);
2270 mutex_unlock(&priv->shrd->mutex);
2271 IWL_DEBUG_MAC80211(priv, "leave\n");
2273 ieee80211_resume_disconnect(vif);
2279 static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
2281 struct iwl_priv *priv = hw->priv;
2283 IWL_DEBUG_MACDUMP(priv, "enter\n");
2285 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
2286 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
2288 if (iwlagn_tx_skb(priv, skb))
2289 dev_kfree_skb_any(skb);
2291 IWL_DEBUG_MACDUMP(priv, "leave\n");
2294 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
2295 struct ieee80211_vif *vif,
2296 struct ieee80211_key_conf *keyconf,
2297 struct ieee80211_sta *sta,
2298 u32 iv32, u16 *phase1key)
2300 struct iwl_priv *priv = hw->priv;
2302 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
2305 static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2306 struct ieee80211_vif *vif,
2307 struct ieee80211_sta *sta,
2308 struct ieee80211_key_conf *key)
2310 struct iwl_priv *priv = hw->priv;
2311 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2312 struct iwl_rxon_context *ctx = vif_priv->ctx;
2314 bool is_default_wep_key = false;
2316 IWL_DEBUG_MAC80211(priv, "enter\n");
2318 if (iwlagn_mod_params.sw_crypto) {
2319 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
2324 * We could program these keys into the hardware as well, but we
2325 * don't expect much multicast traffic in IBSS and having keys
2326 * for more stations is probably more useful.
2328 * Mark key TX-only and return 0.
2330 if (vif->type == NL80211_IFTYPE_ADHOC &&
2331 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
2332 key->hw_key_idx = WEP_INVALID_OFFSET;
2336 /* If they key was TX-only, accept deletion */
2337 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
2340 mutex_lock(&priv->shrd->mutex);
2341 iwl_scan_cancel_timeout(priv, 100);
2343 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
2346 * If we are getting WEP group key and we didn't receive any key mapping
2347 * so far, we are in legacy wep mode (group key only), otherwise we are
2349 * In legacy wep mode, we use another host command to the uCode.
2351 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
2352 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
2354 is_default_wep_key = !ctx->key_mapping_keys;
2356 is_default_wep_key =
2357 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
2363 if (is_default_wep_key) {
2364 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
2367 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
2370 * can't add key for RX, but we don't need it
2371 * in the device for TX so still return 0
2374 key->hw_key_idx = WEP_INVALID_OFFSET;
2377 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
2380 if (is_default_wep_key)
2381 ret = iwl_remove_default_wep_key(priv, ctx, key);
2383 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
2385 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
2391 mutex_unlock(&priv->shrd->mutex);
2392 IWL_DEBUG_MAC80211(priv, "leave\n");
2397 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
2398 struct ieee80211_vif *vif,
2399 enum ieee80211_ampdu_mlme_action action,
2400 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
2403 struct iwl_priv *priv = hw->priv;
2405 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
2406 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
2408 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
2411 if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE))
2414 IWL_DEBUG_MAC80211(priv, "enter\n");
2415 mutex_lock(&priv->shrd->mutex);
2418 case IEEE80211_AMPDU_RX_START:
2419 IWL_DEBUG_HT(priv, "start Rx\n");
2420 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
2422 case IEEE80211_AMPDU_RX_STOP:
2423 IWL_DEBUG_HT(priv, "stop Rx\n");
2424 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
2425 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
2428 case IEEE80211_AMPDU_TX_START:
2429 IWL_DEBUG_HT(priv, "start Tx\n");
2430 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
2432 case IEEE80211_AMPDU_TX_STOP:
2433 IWL_DEBUG_HT(priv, "stop Tx\n");
2434 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
2435 if ((ret == 0) && (priv->agg_tids_count > 0)) {
2436 priv->agg_tids_count--;
2437 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2438 priv->agg_tids_count);
2440 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
2442 if (!priv->agg_tids_count && priv->cfg->ht_params &&
2443 priv->cfg->ht_params->use_rts_for_aggregation) {
2445 * switch off RTS/CTS if it was previously enabled
2447 sta_priv->lq_sta.lq.general_params.flags &=
2448 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
2449 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2450 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
2453 case IEEE80211_AMPDU_TX_OPERATIONAL:
2454 buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
2456 iwl_trans_tx_agg_setup(trans(priv), ctx->ctxid, iwl_sta_id(sta),
2460 * If the limit is 0, then it wasn't initialised yet,
2461 * use the default. We can do that since we take the
2462 * minimum below, and we don't want to go above our
2463 * default due to hardware restrictions.
2465 if (sta_priv->max_agg_bufsize == 0)
2466 sta_priv->max_agg_bufsize =
2467 LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2470 * Even though in theory the peer could have different
2471 * aggregation reorder buffer sizes for different sessions,
2472 * our ucode doesn't allow for that and has a global limit
2473 * for each station. Therefore, use the minimum of all the
2474 * aggregation sessions and our default value.
2476 sta_priv->max_agg_bufsize =
2477 min(sta_priv->max_agg_bufsize, buf_size);
2479 if (priv->cfg->ht_params &&
2480 priv->cfg->ht_params->use_rts_for_aggregation) {
2482 * switch to RTS/CTS if it is the prefer protection
2483 * method for HT traffic
2486 sta_priv->lq_sta.lq.general_params.flags |=
2487 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
2489 priv->agg_tids_count++;
2490 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2491 priv->agg_tids_count);
2493 sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
2494 sta_priv->max_agg_bufsize;
2496 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2497 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
2499 IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n",
2504 mutex_unlock(&priv->shrd->mutex);
2505 IWL_DEBUG_MAC80211(priv, "leave\n");
2509 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
2510 struct ieee80211_vif *vif,
2511 struct ieee80211_sta *sta)
2513 struct iwl_priv *priv = hw->priv;
2514 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
2515 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2516 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
2520 IWL_DEBUG_MAC80211(priv, "received request to add station %pM\n",
2522 mutex_lock(&priv->shrd->mutex);
2523 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
2525 sta_priv->sta_id = IWL_INVALID_STATION;
2527 atomic_set(&sta_priv->pending_frames, 0);
2528 if (vif->type == NL80211_IFTYPE_AP)
2529 sta_priv->client = true;
2531 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
2532 is_ap, sta, &sta_id);
2534 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
2536 /* Should we return success if return code is EEXIST ? */
2540 sta_priv->sta_id = sta_id;
2542 /* Initialize rate scaling */
2543 IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
2545 iwl_rs_rate_init(priv, sta, sta_id);
2547 mutex_unlock(&priv->shrd->mutex);
2548 IWL_DEBUG_MAC80211(priv, "leave\n");
2553 static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
2554 struct ieee80211_channel_switch *ch_switch)
2556 struct iwl_priv *priv = hw->priv;
2557 const struct iwl_channel_info *ch_info;
2558 struct ieee80211_conf *conf = &hw->conf;
2559 struct ieee80211_channel *channel = ch_switch->channel;
2560 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
2563 * When we add support for multiple interfaces, we need to
2564 * revisit this. The channel switch command in the device
2565 * only affects the BSS context, but what does that really
2566 * mean? And what if we get a CSA on the second interface?
2567 * This needs a lot of work.
2569 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2572 IWL_DEBUG_MAC80211(priv, "enter\n");
2574 mutex_lock(&priv->shrd->mutex);
2576 if (iwl_is_rfkill(priv->shrd))
2579 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
2580 test_bit(STATUS_SCANNING, &priv->shrd->status) ||
2581 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status))
2584 if (!iwl_is_associated_ctx(ctx))
2587 if (!priv->cfg->lib->set_channel_switch)
2590 ch = channel->hw_value;
2591 if (le16_to_cpu(ctx->active.channel) == ch)
2594 ch_info = iwl_get_channel_info(priv, channel->band, ch);
2595 if (!is_channel_valid(ch_info)) {
2596 IWL_DEBUG_MAC80211(priv, "invalid channel\n");
2600 spin_lock_irq(&priv->shrd->lock);
2602 priv->current_ht_config.smps = conf->smps_mode;
2604 /* Configure HT40 channels */
2605 ctx->ht.enabled = conf_is_ht(conf);
2606 if (ctx->ht.enabled) {
2607 if (conf_is_ht40_minus(conf)) {
2608 ctx->ht.extension_chan_offset =
2609 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
2610 ctx->ht.is_40mhz = true;
2611 } else if (conf_is_ht40_plus(conf)) {
2612 ctx->ht.extension_chan_offset =
2613 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
2614 ctx->ht.is_40mhz = true;
2616 ctx->ht.extension_chan_offset =
2617 IEEE80211_HT_PARAM_CHA_SEC_NONE;
2618 ctx->ht.is_40mhz = false;
2621 ctx->ht.is_40mhz = false;
2623 if ((le16_to_cpu(ctx->staging.channel) != ch))
2624 ctx->staging.flags = 0;
2626 iwl_set_rxon_channel(priv, channel, ctx);
2627 iwl_set_rxon_ht(priv, ht_conf);
2628 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
2630 spin_unlock_irq(&priv->shrd->lock);
2634 * at this point, staging_rxon has the
2635 * configuration for channel switch
2637 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
2638 priv->switch_channel = cpu_to_le16(ch);
2639 if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) {
2640 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
2641 priv->switch_channel = 0;
2642 ieee80211_chswitch_done(ctx->vif, false);
2646 mutex_unlock(&priv->shrd->mutex);
2647 IWL_DEBUG_MAC80211(priv, "leave\n");
2650 static void iwlagn_configure_filter(struct ieee80211_hw *hw,
2651 unsigned int changed_flags,
2652 unsigned int *total_flags,
2655 struct iwl_priv *priv = hw->priv;
2656 __le32 filter_or = 0, filter_nand = 0;
2657 struct iwl_rxon_context *ctx;
2659 #define CHK(test, flag) do { \
2660 if (*total_flags & (test)) \
2661 filter_or |= (flag); \
2663 filter_nand |= (flag); \
2666 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
2667 changed_flags, *total_flags);
2669 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
2670 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2671 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
2672 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
2676 mutex_lock(&priv->shrd->mutex);
2678 for_each_context(priv, ctx) {
2679 ctx->staging.filter_flags &= ~filter_nand;
2680 ctx->staging.filter_flags |= filter_or;
2683 * Not committing directly because hardware can perform a scan,
2684 * but we'll eventually commit the filter flags change anyway.
2688 mutex_unlock(&priv->shrd->mutex);
2691 * Receiving all multicast frames is always enabled by the
2692 * default flags setup in iwl_connection_init_rx_config()
2693 * since we currently do not support programming multicast
2694 * filters into the device.
2696 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
2697 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
2700 static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
2702 struct iwl_priv *priv = hw->priv;
2704 mutex_lock(&priv->shrd->mutex);
2705 IWL_DEBUG_MAC80211(priv, "enter\n");
2707 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
2708 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
2711 if (iwl_is_rfkill(priv->shrd)) {
2712 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
2717 * mac80211 will not push any more frames for transmit
2718 * until the flush is completed
2721 IWL_DEBUG_MAC80211(priv, "send flush command\n");
2722 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
2723 IWL_ERR(priv, "flush request fail\n");
2727 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
2728 iwl_trans_wait_tx_queue_empty(trans(priv));
2730 mutex_unlock(&priv->shrd->mutex);
2731 IWL_DEBUG_MAC80211(priv, "leave\n");
2734 void iwlagn_disable_roc(struct iwl_priv *priv)
2736 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
2738 lockdep_assert_held(&priv->shrd->mutex);
2740 if (!priv->hw_roc_setup)
2743 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2744 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2746 priv->hw_roc_channel = NULL;
2748 memset(ctx->staging.node_addr, 0, ETH_ALEN);
2750 iwlagn_commit_rxon(priv, ctx);
2752 ctx->is_active = false;
2753 priv->hw_roc_setup = false;
2756 static void iwlagn_disable_roc_work(struct work_struct *work)
2758 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2759 hw_roc_disable_work.work);
2761 mutex_lock(&priv->shrd->mutex);
2762 iwlagn_disable_roc(priv);
2763 mutex_unlock(&priv->shrd->mutex);
2766 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
2767 struct ieee80211_channel *channel,
2768 enum nl80211_channel_type channel_type,
2771 struct iwl_priv *priv = hw->priv;
2772 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
2775 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
2778 if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
2781 IWL_DEBUG_MAC80211(priv, "enter\n");
2782 mutex_lock(&priv->shrd->mutex);
2784 if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
2789 priv->hw_roc_channel = channel;
2790 priv->hw_roc_chantype = channel_type;
2791 priv->hw_roc_duration = duration;
2792 priv->hw_roc_start_notified = false;
2793 cancel_delayed_work(&priv->hw_roc_disable_work);
2795 if (!ctx->is_active) {
2796 ctx->is_active = true;
2797 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2798 memcpy(ctx->staging.node_addr,
2799 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2801 memcpy(ctx->staging.bssid_addr,
2802 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2804 err = iwlagn_commit_rxon(priv, ctx);
2807 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
2808 RXON_FILTER_PROMISC_MSK |
2809 RXON_FILTER_CTL2HOST_MSK;
2811 err = iwlagn_commit_rxon(priv, ctx);
2813 iwlagn_disable_roc(priv);
2816 priv->hw_roc_setup = true;
2819 err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
2821 iwlagn_disable_roc(priv);
2824 mutex_unlock(&priv->shrd->mutex);
2825 IWL_DEBUG_MAC80211(priv, "leave\n");
2830 static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
2832 struct iwl_priv *priv = hw->priv;
2834 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
2837 IWL_DEBUG_MAC80211(priv, "enter\n");
2838 mutex_lock(&priv->shrd->mutex);
2839 iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
2840 iwlagn_disable_roc(priv);
2841 mutex_unlock(&priv->shrd->mutex);
2842 IWL_DEBUG_MAC80211(priv, "leave\n");
2847 static int iwlagn_mac_tx_sync(struct ieee80211_hw *hw,
2848 struct ieee80211_vif *vif,
2850 enum ieee80211_tx_sync_type type)
2852 struct iwl_priv *priv = hw->priv;
2853 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2854 struct iwl_rxon_context *ctx = vif_priv->ctx;
2858 IWL_DEBUG_MAC80211(priv, "enter\n");
2859 mutex_lock(&priv->shrd->mutex);
2861 if (iwl_is_associated_ctx(ctx)) {
2866 if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
2871 ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id);
2875 if (WARN_ON(sta_id != ctx->ap_sta_id)) {
2877 goto out_remove_sta;
2880 memcpy(ctx->bssid, bssid, ETH_ALEN);
2881 ctx->preauth_bssid = true;
2883 ret = iwlagn_commit_rxon(priv, ctx);
2889 iwl_remove_station(priv, sta_id, bssid);
2891 mutex_unlock(&priv->shrd->mutex);
2892 IWL_DEBUG_MAC80211(priv, "leave\n");
2897 static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw *hw,
2898 struct ieee80211_vif *vif,
2900 enum ieee80211_tx_sync_type type)
2902 struct iwl_priv *priv = hw->priv;
2903 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2904 struct iwl_rxon_context *ctx = vif_priv->ctx;
2906 IWL_DEBUG_MAC80211(priv, "enter\n");
2907 mutex_lock(&priv->shrd->mutex);
2909 if (iwl_is_associated_ctx(ctx))
2912 iwl_remove_station(priv, ctx->ap_sta_id, bssid);
2913 ctx->preauth_bssid = false;
2914 /* no need to commit */
2916 mutex_unlock(&priv->shrd->mutex);
2917 IWL_DEBUG_MAC80211(priv, "leave\n");
2920 /*****************************************************************************
2922 * driver setup and teardown
2924 *****************************************************************************/
2926 static void iwl_setup_deferred_work(struct iwl_priv *priv)
2928 priv->shrd->workqueue = create_singlethread_workqueue(DRV_NAME);
2930 init_waitqueue_head(&priv->shrd->wait_command_queue);
2932 INIT_WORK(&priv->restart, iwl_bg_restart);
2933 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
2934 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
2935 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
2936 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
2937 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
2938 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
2939 iwlagn_disable_roc_work);
2941 iwl_setup_scan_deferred_work(priv);
2943 if (priv->cfg->lib->bt_setup_deferred_work)
2944 priv->cfg->lib->bt_setup_deferred_work(priv);
2946 init_timer(&priv->statistics_periodic);
2947 priv->statistics_periodic.data = (unsigned long)priv;
2948 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
2950 init_timer(&priv->ucode_trace);
2951 priv->ucode_trace.data = (unsigned long)priv;
2952 priv->ucode_trace.function = iwl_bg_ucode_trace;
2954 init_timer(&priv->watchdog);
2955 priv->watchdog.data = (unsigned long)priv;
2956 priv->watchdog.function = iwl_bg_watchdog;
2959 static void iwl_cancel_deferred_work(struct iwl_priv *priv)
2961 if (priv->cfg->lib->cancel_deferred_work)
2962 priv->cfg->lib->cancel_deferred_work(priv);
2964 cancel_work_sync(&priv->run_time_calib_work);
2965 cancel_work_sync(&priv->beacon_update);
2967 iwl_cancel_scan_deferred_work(priv);
2969 cancel_work_sync(&priv->bt_full_concurrency);
2970 cancel_work_sync(&priv->bt_runtime_config);
2971 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
2973 del_timer_sync(&priv->statistics_periodic);
2974 del_timer_sync(&priv->ucode_trace);
2977 static void iwl_init_hw_rates(struct iwl_priv *priv,
2978 struct ieee80211_rate *rates)
2982 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
2983 rates[i].bitrate = iwl_rates[i].ieee * 5;
2984 rates[i].hw_value = i; /* Rate scaling will work on indexes */
2985 rates[i].hw_value_short = i;
2987 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
2989 * If CCK != 1M then set short preamble rate flag.
2992 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
2993 0 : IEEE80211_RATE_SHORT_PREAMBLE;
2998 static int iwl_init_drv(struct iwl_priv *priv)
3002 spin_lock_init(&priv->shrd->sta_lock);
3004 mutex_init(&priv->shrd->mutex);
3006 priv->ieee_channels = NULL;
3007 priv->ieee_rates = NULL;
3008 priv->band = IEEE80211_BAND_2GHZ;
3010 priv->iw_mode = NL80211_IFTYPE_STATION;
3011 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
3012 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
3013 priv->agg_tids_count = 0;
3015 /* initialize force reset */
3016 priv->force_reset[IWL_RF_RESET].reset_duration =
3017 IWL_DELAY_NEXT_FORCE_RF_RESET;
3018 priv->force_reset[IWL_FW_RESET].reset_duration =
3019 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
3021 priv->rx_statistics_jiffies = jiffies;
3023 /* Choose which receivers/antennas to use */
3024 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
3026 iwl_init_scan_params(priv);
3029 if (priv->cfg->bt_params &&
3030 priv->cfg->bt_params->advanced_bt_coexist) {
3031 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
3032 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
3033 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
3034 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
3035 priv->bt_duration = BT_DURATION_LIMIT_DEF;
3036 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
3039 ret = iwl_init_channel_map(priv);
3041 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3045 ret = iwl_init_geos(priv);
3047 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3048 goto err_free_channel_map;
3050 iwl_init_hw_rates(priv, priv->ieee_rates);
3054 err_free_channel_map:
3055 iwl_free_channel_map(priv);
3060 static void iwl_uninit_drv(struct iwl_priv *priv)
3062 iwl_calib_free_results(priv);
3063 iwl_free_geos(priv);
3064 iwl_free_channel_map(priv);
3065 if (priv->tx_cmd_pool)
3066 kmem_cache_destroy(priv->tx_cmd_pool);
3067 kfree(priv->scan_cmd);
3068 kfree(priv->beacon_cmd);
3069 kfree(rcu_dereference_raw(priv->noa_data));
3070 #ifdef CONFIG_IWLWIFI_DEBUGFS
3071 kfree(priv->wowlan_sram);
3075 static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
3076 enum ieee80211_rssi_event rssi_event)
3078 struct iwl_priv *priv = hw->priv;
3080 IWL_DEBUG_MAC80211(priv, "enter\n");
3081 mutex_lock(&priv->shrd->mutex);
3083 if (priv->cfg->bt_params &&
3084 priv->cfg->bt_params->advanced_bt_coexist) {
3085 if (rssi_event == RSSI_EVENT_LOW)
3086 priv->bt_enable_pspoll = true;
3087 else if (rssi_event == RSSI_EVENT_HIGH)
3088 priv->bt_enable_pspoll = false;
3090 iwlagn_send_advance_bt_config(priv);
3092 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
3093 "ignoring RSSI callback\n");
3096 mutex_unlock(&priv->shrd->mutex);
3097 IWL_DEBUG_MAC80211(priv, "leave\n");
3100 static int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
3101 struct ieee80211_sta *sta, bool set)
3103 struct iwl_priv *priv = hw->priv;
3105 queue_work(priv->shrd->workqueue, &priv->beacon_update);
3110 struct ieee80211_ops iwlagn_hw_ops = {
3111 .tx = iwlagn_mac_tx,
3112 .start = iwlagn_mac_start,
3113 .stop = iwlagn_mac_stop,
3114 #ifdef CONFIG_PM_SLEEP
3115 .suspend = iwlagn_mac_suspend,
3116 .resume = iwlagn_mac_resume,
3118 .add_interface = iwlagn_mac_add_interface,
3119 .remove_interface = iwlagn_mac_remove_interface,
3120 .change_interface = iwlagn_mac_change_interface,
3121 .config = iwlagn_mac_config,
3122 .configure_filter = iwlagn_configure_filter,
3123 .set_key = iwlagn_mac_set_key,
3124 .update_tkip_key = iwlagn_mac_update_tkip_key,
3125 .set_rekey_data = iwlagn_mac_set_rekey_data,
3126 .conf_tx = iwlagn_mac_conf_tx,
3127 .bss_info_changed = iwlagn_bss_info_changed,
3128 .ampdu_action = iwlagn_mac_ampdu_action,
3129 .hw_scan = iwlagn_mac_hw_scan,
3130 .sta_notify = iwlagn_mac_sta_notify,
3131 .sta_add = iwlagn_mac_sta_add,
3132 .sta_remove = iwlagn_mac_sta_remove,
3133 .channel_switch = iwlagn_mac_channel_switch,
3134 .flush = iwlagn_mac_flush,
3135 .tx_last_beacon = iwlagn_mac_tx_last_beacon,
3136 .remain_on_channel = iwlagn_mac_remain_on_channel,
3137 .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel,
3138 .rssi_callback = iwlagn_mac_rssi_callback,
3139 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd)
3140 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump)
3141 .tx_sync = iwlagn_mac_tx_sync,
3142 .finish_tx_sync = iwlagn_mac_finish_tx_sync,
3143 .set_tim = iwlagn_mac_set_tim,
3146 static u32 iwl_hw_detect(struct iwl_priv *priv)
3148 return iwl_read32(bus(priv), CSR_HW_REV);
3151 /* Size of one Rx buffer in host DRAM */
3152 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
3153 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
3155 static int iwl_set_hw_params(struct iwl_priv *priv)
3157 if (iwlagn_mod_params.amsdu_size_8K)
3158 hw_params(priv).rx_page_order =
3159 get_order(IWL_RX_BUF_SIZE_8K);
3161 hw_params(priv).rx_page_order =
3162 get_order(IWL_RX_BUF_SIZE_4K);
3164 if (iwlagn_mod_params.disable_11n)
3165 priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
3167 hw_params(priv).num_ampdu_queues =
3168 priv->cfg->base_params->num_of_ampdu_queues;
3169 hw_params(priv).shadow_reg_enable =
3170 priv->cfg->base_params->shadow_reg_enable;
3171 hw_params(priv).sku = priv->cfg->sku;
3172 hw_params(priv).wd_timeout = priv->cfg->base_params->wd_timeout;
3174 /* Device-specific setup */
3175 return priv->cfg->lib->set_hw_params(priv);
3178 /* This function both allocates and initializes hw and priv. */
3179 static struct ieee80211_hw *iwl_alloc_all(void)
3181 struct iwl_priv *priv;
3182 /* mac80211 allocates memory for this device instance, including
3183 * space for this driver's private structure */
3184 struct ieee80211_hw *hw;
3186 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops);
3197 int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
3198 struct iwl_cfg *cfg)
3201 struct iwl_priv *priv;
3202 struct ieee80211_hw *hw;
3206 /************************
3207 * 1. Allocating HW data
3208 ************************/
3209 hw = iwl_alloc_all();
3211 pr_err("%s: Cannot allocate network device\n", cfg->name);
3217 priv->shrd = &priv->_shrd;
3218 bus->shrd = priv->shrd;
3219 priv->shrd->bus = bus;
3220 priv->shrd->priv = priv;
3222 priv->shrd->trans = trans_ops->alloc(priv->shrd);
3223 if (priv->shrd->trans == NULL) {
3225 goto out_free_traffic_mem;
3228 /* At this point both hw and priv are allocated. */
3230 SET_IEEE80211_DEV(hw, bus(priv)->dev);
3232 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
3235 /* is antenna coupling more than 35dB ? */
3236 priv->bt_ant_couple_ok =
3237 (iwlagn_mod_params.ant_coupling >
3238 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
3241 /* enable/disable bt channel inhibition */
3242 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
3243 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
3244 (priv->bt_ch_announce) ? "On" : "Off");
3246 if (iwl_alloc_traffic_mem(priv))
3247 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
3249 /* these spin locks will be used in apm_ops.init and EEPROM access
3250 * we should init now
3252 spin_lock_init(&bus(priv)->reg_lock);
3253 spin_lock_init(&priv->shrd->lock);
3256 * stop and reset the on-board processor just in case it is in a
3257 * strange state ... like being left stranded by a primary kernel
3258 * and this is now the kdump kernel trying to start up
3260 iwl_write32(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
3262 /***********************
3263 * 3. Read REV register
3264 ***********************/
3265 hw_rev = iwl_hw_detect(priv);
3266 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
3267 priv->cfg->name, hw_rev);
3269 err = iwl_trans_request_irq(trans(priv));
3271 goto out_free_trans;
3273 if (iwl_trans_prepare_card_hw(trans(priv))) {
3275 IWL_WARN(priv, "Failed, HW not ready\n");
3276 goto out_free_trans;
3282 /* Read the EEPROM */
3283 err = iwl_eeprom_init(priv, hw_rev);
3285 IWL_ERR(priv, "Unable to init EEPROM\n");
3286 goto out_free_trans;
3288 err = iwl_eeprom_check_version(priv);
3290 goto out_free_eeprom;
3292 err = iwl_eeprom_check_sku(priv);
3294 goto out_free_eeprom;
3296 /* extract MAC Address */
3297 iwl_eeprom_get_mac(priv, priv->addresses[0].addr);
3298 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
3299 priv->hw->wiphy->addresses = priv->addresses;
3300 priv->hw->wiphy->n_addresses = 1;
3301 num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS);
3303 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
3305 priv->addresses[1].addr[5]++;
3306 priv->hw->wiphy->n_addresses++;
3309 /************************
3310 * 5. Setup HW constants
3311 ************************/
3312 if (iwl_set_hw_params(priv)) {
3314 IWL_ERR(priv, "failed to set hw parameters\n");
3315 goto out_free_eeprom;
3318 /*******************
3320 *******************/
3322 err = iwl_init_drv(priv);
3324 goto out_free_eeprom;
3325 /* At this point both hw and priv are initialized. */
3327 /********************
3329 ********************/
3330 iwl_setup_deferred_work(priv);
3331 iwl_setup_rx_handlers(priv);
3332 iwl_testmode_init(priv);
3334 /*********************************************
3335 * 8. Enable interrupts
3336 *********************************************/
3338 iwl_enable_rfkill_int(priv);
3340 /* If platform's RF_KILL switch is NOT set to KILL */
3341 if (iwl_read32(bus(priv),
3342 CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
3343 clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
3345 set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
3347 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
3348 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
3350 iwl_power_initialize(priv);
3351 iwl_tt_initialize(priv);
3353 init_completion(&priv->firmware_loading_complete);
3355 err = iwl_request_firmware(priv, true);
3357 goto out_destroy_workqueue;
3361 out_destroy_workqueue:
3362 destroy_workqueue(priv->shrd->workqueue);
3363 priv->shrd->workqueue = NULL;
3364 iwl_uninit_drv(priv);
3366 iwl_eeprom_free(priv);
3368 iwl_trans_free(trans(priv));
3369 out_free_traffic_mem:
3370 iwl_free_traffic_mem(priv);
3371 ieee80211_free_hw(priv->hw);
3376 void __devexit iwl_remove(struct iwl_priv * priv)
3378 wait_for_completion(&priv->firmware_loading_complete);
3380 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
3382 iwl_dbgfs_unregister(priv);
3384 /* ieee80211_unregister_hw call wil cause iwlagn_mac_stop to
3385 * to be called and iwl_down since we are removing the device
3386 * we need to set STATUS_EXIT_PENDING bit.
3388 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
3390 iwl_testmode_cleanup(priv);
3391 iwl_leds_exit(priv);
3393 if (priv->mac80211_registered) {
3394 ieee80211_unregister_hw(priv->hw);
3395 priv->mac80211_registered = 0;
3400 /*This will stop the queues, move the device to low power state */
3401 iwl_trans_stop_device(trans(priv));
3403 iwl_dealloc_ucode(priv);
3405 iwl_eeprom_free(priv);
3407 /*netif_stop_queue(dev); */
3408 flush_workqueue(priv->shrd->workqueue);
3410 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
3411 * priv->shrd->workqueue... so we can't take down the workqueue
3413 destroy_workqueue(priv->shrd->workqueue);
3414 priv->shrd->workqueue = NULL;
3415 iwl_free_traffic_mem(priv);
3417 iwl_trans_free(trans(priv));
3419 iwl_uninit_drv(priv);
3421 dev_kfree_skb(priv->beacon_skb);
3423 ieee80211_free_hw(priv->hw);
3427 /*****************************************************************************
3429 * driver and module entry point
3431 *****************************************************************************/
3432 static int __init iwl_init(void)
3436 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
3437 pr_info(DRV_COPYRIGHT "\n");
3439 ret = iwlagn_rate_control_register();
3441 pr_err("Unable to register rate control algorithm: %d\n", ret);
3445 ret = iwl_pci_register_driver();
3448 goto error_register;
3452 iwlagn_rate_control_unregister();
3456 static void __exit iwl_exit(void)
3458 iwl_pci_unregister_driver();
3459 iwlagn_rate_control_unregister();
3462 module_exit(iwl_exit);
3463 module_init(iwl_init);
3465 #ifdef CONFIG_IWLWIFI_DEBUG
3466 module_param_named(debug, iwlagn_mod_params.debug_level, uint,
3468 MODULE_PARM_DESC(debug, "debug output mask");
3471 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
3472 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
3473 module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
3474 MODULE_PARM_DESC(queues_num, "number of hw queues.");
3475 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
3476 MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
3477 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
3479 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
3480 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
3481 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
3483 module_param_named(ucode_alternative,
3484 iwlagn_mod_params.wanted_ucode_alternative,
3486 MODULE_PARM_DESC(ucode_alternative,
3487 "specify ucode alternative to use from ucode file");
3489 module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
3491 MODULE_PARM_DESC(antenna_coupling,
3492 "specify antenna coupling in dB (defualt: 0 dB)");
3494 module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
3496 MODULE_PARM_DESC(bt_ch_inhibition,
3497 "Enable BT channel inhibition (default: enable)");
3499 module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
3500 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
3502 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
3503 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
3505 module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO);
3506 MODULE_PARM_DESC(wd_disable,
3507 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3510 * set bt_coex_active to true, uCode will do kill/defer
3511 * every time the priority line is asserted (BT is sending signals on the
3512 * priority line in the PCIx).
3513 * set bt_coex_active to false, uCode will ignore the BT activity and
3514 * perform the normal operation
3516 * User might experience transmit issue on some platform due to WiFi/BT
3517 * co-exist problem. The possible behaviors are:
3518 * Able to scan and finding all the available AP
3519 * Not able to associate with any AP
3520 * On those platforms, WiFi communication can be restored by set
3521 * "bt_coex_active" module parameter to "false"
3523 * default: bt_coex_active = true (BT_COEX_ENABLE)
3525 module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
3527 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
3529 module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
3530 MODULE_PARM_DESC(led_mode, "0=system default, "
3531 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3533 module_param_named(power_save, iwlagn_mod_params.power_save,
3535 MODULE_PARM_DESC(power_save,
3536 "enable WiFi power management (default: disable)");
3538 module_param_named(power_level, iwlagn_mod_params.power_level,
3540 MODULE_PARM_DESC(power_level,
3541 "default power save level (range from 1 - 5, default: 1)");
3543 module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
3545 MODULE_PARM_DESC(auto_agg,
3546 "enable agg w/o check traffic load (default: enable)");
3549 * For now, keep using power level 1 instead of automatically
3552 module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
3554 MODULE_PARM_DESC(no_sleep_autoadjust,
3555 "don't automatically adjust sleep level "
3556 "according to maximum network latency (default: true)");