1 /******************************************************************************
3 * Copyright(c) 2003 - 2013 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 *****************************************************************************/
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/delay.h>
37 #include <linux/sched.h>
38 #include <linux/skbuff.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/mac80211.h>
45 #include <asm/div64.h>
47 #include "iwl-eeprom-read.h"
48 #include "iwl-eeprom-parse.h"
50 #include "iwl-trans.h"
51 #include "iwl-op-mode.h"
53 #include "iwl-modparams.h"
61 /******************************************************************************
65 ******************************************************************************/
68 * module name, copyright, version, etc.
70 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
72 #ifdef CONFIG_IWLWIFI_DEBUG
78 #define DRV_VERSION IWLWIFI_VERSION VD
81 MODULE_DESCRIPTION(DRV_DESCRIPTION);
82 MODULE_VERSION(DRV_VERSION);
83 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
84 MODULE_LICENSE("GPL");
86 static const struct iwl_op_mode_ops iwl_dvm_ops;
88 void iwl_update_chain_flags(struct iwl_priv *priv)
90 struct iwl_rxon_context *ctx;
92 for_each_context(priv, ctx) {
93 iwlagn_set_rxon_chain(priv, ctx);
94 if (ctx->active.rx_chain != ctx->staging.rx_chain)
95 iwlagn_commit_rxon(priv, ctx);
99 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
100 static void iwl_set_beacon_tim(struct iwl_priv *priv,
101 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
102 u8 *beacon, u32 frame_size)
105 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
108 * The index is relative to frame start but we start looking at the
109 * variable-length part of the beacon.
111 tim_idx = mgmt->u.beacon.variable - beacon;
113 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
114 while ((tim_idx < (frame_size - 2)) &&
115 (beacon[tim_idx] != WLAN_EID_TIM))
116 tim_idx += beacon[tim_idx+1] + 2;
118 /* If TIM field was found, set variables */
119 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
120 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
121 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
123 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
126 int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
128 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
129 struct iwl_host_cmd cmd = {
130 .id = REPLY_TX_BEACON,
133 struct ieee80211_tx_info *info;
139 * We have to set up the TX command, the TX Beacon command, and the
143 lockdep_assert_held(&priv->mutex);
145 if (!priv->beacon_ctx) {
146 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
150 if (WARN_ON(!priv->beacon_skb))
153 /* Allocate beacon command */
154 if (!priv->beacon_cmd)
155 priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
156 tx_beacon_cmd = priv->beacon_cmd;
160 frame_size = priv->beacon_skb->len;
162 /* Set up TX command fields */
163 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
164 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
165 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
166 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
167 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
169 /* Set up TX beacon command fields */
170 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
173 /* Set up packet rate and flags */
174 info = IEEE80211_SKB_CB(priv->beacon_skb);
177 * Let's set up the rate at least somewhat correctly;
178 * it will currently not actually be used by the uCode,
179 * it uses the broadcast station's rate instead.
181 if (info->control.rates[0].idx < 0 ||
182 info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
185 rate = info->control.rates[0].idx;
187 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
188 priv->nvm_data->valid_tx_ant);
189 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
191 /* In mac80211, rates for 5 GHz start at 0 */
192 if (info->band == IEEE80211_BAND_5GHZ)
193 rate += IWL_FIRST_OFDM_RATE;
194 else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE)
195 rate_flags |= RATE_MCS_CCK_MSK;
197 tx_beacon_cmd->tx.rate_n_flags =
198 iwl_hw_set_rate_n_flags(rate, rate_flags);
201 cmd.len[0] = sizeof(*tx_beacon_cmd);
202 cmd.data[0] = tx_beacon_cmd;
203 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
204 cmd.len[1] = frame_size;
205 cmd.data[1] = priv->beacon_skb->data;
206 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
208 return iwl_dvm_send_cmd(priv, &cmd);
211 static void iwl_bg_beacon_update(struct work_struct *work)
213 struct iwl_priv *priv =
214 container_of(work, struct iwl_priv, beacon_update);
215 struct sk_buff *beacon;
217 mutex_lock(&priv->mutex);
218 if (!priv->beacon_ctx) {
219 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
223 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
225 * The ucode will send beacon notifications even in
226 * IBSS mode, but we don't want to process them. But
227 * we need to defer the type check to here due to
228 * requiring locking around the beacon_ctx access.
233 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
234 beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
236 IWL_ERR(priv, "update beacon failed -- keeping old\n");
240 /* new beacon skb is allocated every time; dispose previous.*/
241 dev_kfree_skb(priv->beacon_skb);
243 priv->beacon_skb = beacon;
245 iwlagn_send_beacon_cmd(priv);
247 mutex_unlock(&priv->mutex);
250 static void iwl_bg_bt_runtime_config(struct work_struct *work)
252 struct iwl_priv *priv =
253 container_of(work, struct iwl_priv, bt_runtime_config);
255 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
258 /* dont send host command if rf-kill is on */
259 if (!iwl_is_ready_rf(priv))
261 iwlagn_send_advance_bt_config(priv);
264 static void iwl_bg_bt_full_concurrency(struct work_struct *work)
266 struct iwl_priv *priv =
267 container_of(work, struct iwl_priv, bt_full_concurrency);
268 struct iwl_rxon_context *ctx;
270 mutex_lock(&priv->mutex);
272 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
275 /* dont send host command if rf-kill is on */
276 if (!iwl_is_ready_rf(priv))
279 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
280 priv->bt_full_concurrent ?
281 "full concurrency" : "3-wire");
284 * LQ & RXON updated cmds must be sent before BT Config cmd
285 * to avoid 3-wire collisions
287 for_each_context(priv, ctx) {
288 iwlagn_set_rxon_chain(priv, ctx);
289 iwlagn_commit_rxon(priv, ctx);
292 iwlagn_send_advance_bt_config(priv);
294 mutex_unlock(&priv->mutex);
297 int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
299 struct iwl_statistics_cmd statistics_cmd = {
300 .configuration_flags =
301 clear ? IWL_STATS_CONF_CLEAR_STATS : 0,
304 if (flags & CMD_ASYNC)
305 return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
307 sizeof(struct iwl_statistics_cmd),
310 return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
312 sizeof(struct iwl_statistics_cmd),
317 * iwl_bg_statistics_periodic - Timer callback to queue statistics
319 * This callback is provided in order to send a statistics request.
321 * This timer function is continually reset to execute within
322 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
323 * was received. We need to ensure we receive the statistics in order
324 * to update the temperature used for calibrating the TXPOWER.
326 static void iwl_bg_statistics_periodic(unsigned long data)
328 struct iwl_priv *priv = (struct iwl_priv *)data;
330 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
333 /* dont send host command if rf-kill is on */
334 if (!iwl_is_ready_rf(priv))
337 iwl_send_statistics_request(priv, CMD_ASYNC, false);
341 static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
342 u32 start_idx, u32 num_events,
343 u32 capacity, u32 mode)
346 u32 ptr; /* SRAM byte address of log data */
347 u32 ev, time, data; /* event log data */
348 unsigned long reg_flags;
351 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
353 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
355 /* Make sure device is powered up for SRAM reads */
356 if (!iwl_trans_grab_nic_access(priv->trans, false, ®_flags))
359 /* Set starting address; reads will auto-increment */
360 iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, ptr);
363 * Refuse to read more than would have fit into the log from
364 * the current start_idx. This used to happen due to the race
365 * described below, but now WARN because the code below should
366 * prevent it from happening here.
368 if (WARN_ON(num_events > capacity - start_idx))
369 num_events = capacity - start_idx;
372 * "time" is actually "data" for mode 0 (no timestamp).
373 * place event id # at far right for easier visual parsing.
375 for (i = 0; i < num_events; i++) {
376 ev = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
377 time = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
379 trace_iwlwifi_dev_ucode_cont_event(
380 priv->trans->dev, 0, time, ev);
382 data = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
383 trace_iwlwifi_dev_ucode_cont_event(
384 priv->trans->dev, time, data, ev);
387 /* Allow device to power down */
388 iwl_trans_release_nic_access(priv->trans, ®_flags);
391 static void iwl_continuous_event_trace(struct iwl_priv *priv)
393 u32 capacity; /* event log capacity in # entries */
400 u32 base; /* SRAM byte address of event log header */
401 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
402 u32 num_wraps; /* # times uCode wrapped to top of log */
403 u32 next_entry; /* index of next entry to be written by uCode */
405 base = priv->device_pointers.log_event_table;
406 if (iwlagn_hw_valid_rtc_data_addr(base)) {
407 iwl_trans_read_mem_bytes(priv->trans, base,
408 &read, sizeof(read));
409 capacity = read.capacity;
411 num_wraps = read.wrap_counter;
412 next_entry = read.write_counter;
417 * Unfortunately, the uCode doesn't use temporary variables.
418 * Therefore, it can happen that we read next_entry == capacity,
419 * which really means next_entry == 0.
421 if (unlikely(next_entry == capacity))
424 * Additionally, the uCode increases the write pointer before
425 * the wraps counter, so if the write pointer is smaller than
426 * the old write pointer (wrap occurred) but we read that no
427 * wrap occurred, we actually read between the next_entry and
428 * num_wraps update (this does happen in practice!!) -- take
429 * that into account by increasing num_wraps.
431 if (unlikely(next_entry < priv->event_log.next_entry &&
432 num_wraps == priv->event_log.num_wraps))
435 if (num_wraps == priv->event_log.num_wraps) {
436 iwl_print_cont_event_trace(
437 priv, base, priv->event_log.next_entry,
438 next_entry - priv->event_log.next_entry,
441 priv->event_log.non_wraps_count++;
443 if (num_wraps - priv->event_log.num_wraps > 1)
444 priv->event_log.wraps_more_count++;
446 priv->event_log.wraps_once_count++;
448 trace_iwlwifi_dev_ucode_wrap_event(priv->trans->dev,
449 num_wraps - priv->event_log.num_wraps,
450 next_entry, priv->event_log.next_entry);
452 if (next_entry < priv->event_log.next_entry) {
453 iwl_print_cont_event_trace(
454 priv, base, priv->event_log.next_entry,
455 capacity - priv->event_log.next_entry,
458 iwl_print_cont_event_trace(
459 priv, base, 0, next_entry, capacity, mode);
461 iwl_print_cont_event_trace(
462 priv, base, next_entry,
463 capacity - next_entry,
466 iwl_print_cont_event_trace(
467 priv, base, 0, next_entry, capacity, mode);
471 priv->event_log.num_wraps = num_wraps;
472 priv->event_log.next_entry = next_entry;
476 * iwl_bg_ucode_trace - Timer callback to log ucode event
478 * The timer is continually set to execute every
479 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
480 * this function is to perform continuous uCode event logging operation
483 static void iwl_bg_ucode_trace(unsigned long data)
485 struct iwl_priv *priv = (struct iwl_priv *)data;
487 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
490 if (priv->event_log.ucode_trace) {
491 iwl_continuous_event_trace(priv);
492 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
493 mod_timer(&priv->ucode_trace,
494 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
498 static void iwl_bg_tx_flush(struct work_struct *work)
500 struct iwl_priv *priv =
501 container_of(work, struct iwl_priv, tx_flush);
503 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
506 /* do nothing if rf-kill is on */
507 if (!iwl_is_ready_rf(priv))
510 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
511 iwlagn_dev_txfifo_flush(priv);
515 * queue/FIFO/AC mapping definitions
518 static const u8 iwlagn_bss_ac_to_fifo[] = {
525 static const u8 iwlagn_bss_ac_to_queue[] = {
529 static const u8 iwlagn_pan_ac_to_fifo[] = {
536 static const u8 iwlagn_pan_ac_to_queue[] = {
540 static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
545 * The default context is always valid,
546 * the PAN context depends on uCode.
548 priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
549 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
550 priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
552 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
553 priv->contexts[i].ctxid = i;
555 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
556 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
557 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
558 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
559 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
560 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
561 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
562 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
563 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
564 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
565 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_MONITOR);
566 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
567 BIT(NL80211_IFTYPE_STATION);
568 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
569 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
570 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
571 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
572 memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue,
573 iwlagn_bss_ac_to_queue, sizeof(iwlagn_bss_ac_to_queue));
574 memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo,
575 iwlagn_bss_ac_to_fifo, sizeof(iwlagn_bss_ac_to_fifo));
577 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
578 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
579 REPLY_WIPAN_RXON_TIMING;
580 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
581 REPLY_WIPAN_RXON_ASSOC;
582 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
583 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
584 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
585 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
586 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
587 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
588 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
590 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
591 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
592 BIT(NL80211_IFTYPE_P2P_CLIENT) |
593 BIT(NL80211_IFTYPE_P2P_GO);
595 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
596 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
597 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
598 memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue,
599 iwlagn_pan_ac_to_queue, sizeof(iwlagn_pan_ac_to_queue));
600 memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo,
601 iwlagn_pan_ac_to_fifo, sizeof(iwlagn_pan_ac_to_fifo));
602 priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
604 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
607 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
609 struct iwl_ct_kill_config cmd;
610 struct iwl_ct_kill_throttling_config adv_cmd;
613 iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
614 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
616 priv->thermal_throttle.ct_kill_toggle = false;
618 if (priv->cfg->base_params->support_ct_kill_exit) {
619 adv_cmd.critical_temperature_enter =
620 cpu_to_le32(priv->hw_params.ct_kill_threshold);
621 adv_cmd.critical_temperature_exit =
622 cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);
624 ret = iwl_dvm_send_cmd_pdu(priv,
625 REPLY_CT_KILL_CONFIG_CMD,
626 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
628 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
630 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
631 "succeeded, critical temperature enter is %d,"
633 priv->hw_params.ct_kill_threshold,
634 priv->hw_params.ct_kill_exit_threshold);
636 cmd.critical_temperature_R =
637 cpu_to_le32(priv->hw_params.ct_kill_threshold);
639 ret = iwl_dvm_send_cmd_pdu(priv,
640 REPLY_CT_KILL_CONFIG_CMD,
641 CMD_SYNC, sizeof(cmd), &cmd);
643 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
645 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
647 "critical temperature is %d\n",
648 priv->hw_params.ct_kill_threshold);
652 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
654 struct iwl_calib_cfg_cmd calib_cfg_cmd;
655 struct iwl_host_cmd cmd = {
656 .id = CALIBRATION_CFG_CMD,
657 .len = { sizeof(struct iwl_calib_cfg_cmd), },
658 .data = { &calib_cfg_cmd, },
661 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
662 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
663 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
665 return iwl_dvm_send_cmd(priv, &cmd);
669 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
671 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
672 .valid = cpu_to_le32(valid_tx_ant),
675 if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) {
676 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
677 return iwl_dvm_send_cmd_pdu(priv,
678 TX_ANT_CONFIGURATION_CMD,
680 sizeof(struct iwl_tx_ant_config_cmd),
683 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
688 static void iwl_send_bt_config(struct iwl_priv *priv)
690 struct iwl_bt_cmd bt_cmd = {
691 .lead_time = BT_LEAD_TIME_DEF,
692 .max_kill = BT_MAX_KILL_DEF,
697 if (!iwlwifi_mod_params.bt_coex_active)
698 bt_cmd.flags = BT_COEX_DISABLE;
700 bt_cmd.flags = BT_COEX_ENABLE;
702 priv->bt_enable_flag = bt_cmd.flags;
703 IWL_DEBUG_INFO(priv, "BT coex %s\n",
704 (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
706 if (iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
707 CMD_SYNC, sizeof(struct iwl_bt_cmd), &bt_cmd))
708 IWL_ERR(priv, "failed to send BT Coex Config\n");
712 * iwl_alive_start - called after REPLY_ALIVE notification received
713 * from protocol/runtime uCode (initialization uCode's
714 * Alive gets handled by iwl_init_alive_start()).
716 int iwl_alive_start(struct iwl_priv *priv)
719 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
721 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
723 /* After the ALIVE response, we can send host commands to the uCode */
724 set_bit(STATUS_ALIVE, &priv->status);
726 if (iwl_is_rfkill(priv))
729 if (priv->event_log.ucode_trace) {
730 /* start collecting data now */
731 mod_timer(&priv->ucode_trace, jiffies);
734 /* download priority table before any calibration request */
735 if (priv->cfg->bt_params &&
736 priv->cfg->bt_params->advanced_bt_coexist) {
737 /* Configure Bluetooth device coexistence support */
738 if (priv->cfg->bt_params->bt_sco_disable)
739 priv->bt_enable_pspoll = false;
741 priv->bt_enable_pspoll = true;
743 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
744 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
745 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
746 iwlagn_send_advance_bt_config(priv);
747 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
748 priv->cur_rssi_ctx = NULL;
750 iwl_send_prio_tbl(priv);
752 /* FIXME: w/a to force change uCode BT state machine */
753 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
754 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
757 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
758 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
761 } else if (priv->cfg->bt_params) {
763 * default is 2-wire BT coexexistence support
765 iwl_send_bt_config(priv);
769 * Perform runtime calibrations, including DC calibration.
771 iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
773 ieee80211_wake_queues(priv->hw);
775 /* Configure Tx antenna selection based on H/W config */
776 iwlagn_send_tx_ant_config(priv, priv->nvm_data->valid_tx_ant);
778 if (iwl_is_associated_ctx(ctx) && !priv->wowlan) {
779 struct iwl_rxon_cmd *active_rxon =
780 (struct iwl_rxon_cmd *)&ctx->active;
781 /* apply any changes in staging */
782 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
783 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
785 struct iwl_rxon_context *tmp;
786 /* Initialize our rx_config data */
787 for_each_context(priv, tmp)
788 iwl_connection_init_rx_config(priv, tmp);
790 iwlagn_set_rxon_chain(priv, ctx);
794 /* WoWLAN ucode will not reply in the same way, skip it */
795 iwl_reset_run_time_calib(priv);
798 set_bit(STATUS_READY, &priv->status);
800 /* Configure the adapter for unassociated operation */
801 ret = iwlagn_commit_rxon(priv, ctx);
805 /* At this point, the NIC is initialized and operational */
806 iwl_rf_kill_ct_config(priv);
808 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
810 return iwl_power_update_mode(priv, true);
814 * iwl_clear_driver_stations - clear knowledge of all stations from driver
815 * @priv: iwl priv struct
817 * This is called during iwl_down() to make sure that in the case
818 * we're coming there from a hardware restart mac80211 will be
819 * able to reconfigure stations -- if we're getting there in the
820 * normal down flow then the stations will already be cleared.
822 static void iwl_clear_driver_stations(struct iwl_priv *priv)
824 struct iwl_rxon_context *ctx;
826 spin_lock_bh(&priv->sta_lock);
827 memset(priv->stations, 0, sizeof(priv->stations));
828 priv->num_stations = 0;
830 priv->ucode_key_table = 0;
832 for_each_context(priv, ctx) {
834 * Remove all key information that is not stored as part
835 * of station information since mac80211 may not have had
836 * a chance to remove all the keys. When device is
837 * reconfigured by mac80211 after an error all keys will
840 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
841 ctx->key_mapping_keys = 0;
844 spin_unlock_bh(&priv->sta_lock);
847 void iwl_down(struct iwl_priv *priv)
851 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
853 lockdep_assert_held(&priv->mutex);
855 iwl_scan_cancel_timeout(priv, 200);
858 * If active, scanning won't cancel it, so say it expired.
859 * No race since we hold the mutex here and a new one
860 * can't come in at this time.
862 if (priv->ucode_loaded && priv->cur_ucode != IWL_UCODE_INIT)
863 ieee80211_remain_on_channel_expired(priv->hw);
866 test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
868 iwl_clear_ucode_stations(priv, NULL);
869 iwl_dealloc_bcast_stations(priv);
870 iwl_clear_driver_stations(priv);
872 /* reset BT coex data */
874 priv->cur_rssi_ctx = NULL;
876 if (priv->cfg->bt_params)
877 priv->bt_traffic_load =
878 priv->cfg->bt_params->bt_init_traffic_load;
880 priv->bt_traffic_load = 0;
881 priv->bt_full_concurrent = false;
882 priv->bt_ci_compliance = 0;
884 /* Wipe out the EXIT_PENDING status bit if we are not actually
885 * exiting the module */
887 clear_bit(STATUS_EXIT_PENDING, &priv->status);
889 if (priv->mac80211_registered)
890 ieee80211_stop_queues(priv->hw);
892 priv->ucode_loaded = false;
893 iwl_trans_stop_device(priv->trans);
895 /* Set num_aux_in_flight must be done after the transport is stopped */
896 atomic_set(&priv->num_aux_in_flight, 0);
898 /* Clear out all status bits but a few that are stable across reset */
899 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
901 test_bit(STATUS_FW_ERROR, &priv->status) <<
903 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
906 dev_kfree_skb(priv->beacon_skb);
907 priv->beacon_skb = NULL;
910 /*****************************************************************************
912 * Workqueue callbacks
914 *****************************************************************************/
916 static void iwl_bg_run_time_calib_work(struct work_struct *work)
918 struct iwl_priv *priv = container_of(work, struct iwl_priv,
919 run_time_calib_work);
921 mutex_lock(&priv->mutex);
923 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
924 test_bit(STATUS_SCANNING, &priv->status)) {
925 mutex_unlock(&priv->mutex);
929 if (priv->start_calib) {
930 iwl_chain_noise_calibration(priv);
931 iwl_sensitivity_calibration(priv);
934 mutex_unlock(&priv->mutex);
937 void iwlagn_prepare_restart(struct iwl_priv *priv)
939 bool bt_full_concurrent;
946 lockdep_assert_held(&priv->mutex);
951 * __iwl_down() will clear the BT status variables,
952 * which is correct, but when we restart we really
953 * want to keep them so restore them afterwards.
955 * The restart process will later pick them up and
956 * re-configure the hw when we reconfigure the BT
959 bt_full_concurrent = priv->bt_full_concurrent;
960 bt_ci_compliance = priv->bt_ci_compliance;
961 bt_load = priv->bt_traffic_load;
962 bt_status = priv->bt_status;
963 bt_is_sco = priv->bt_is_sco;
967 priv->bt_full_concurrent = bt_full_concurrent;
968 priv->bt_ci_compliance = bt_ci_compliance;
969 priv->bt_traffic_load = bt_load;
970 priv->bt_status = bt_status;
971 priv->bt_is_sco = bt_is_sco;
973 /* reset aggregation queues */
974 for (i = IWLAGN_FIRST_AMPDU_QUEUE; i < IWL_MAX_HW_QUEUES; i++)
975 priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
976 /* and stop counts */
977 for (i = 0; i < IWL_MAX_HW_QUEUES; i++)
978 atomic_set(&priv->queue_stop_count[i], 0);
980 memset(priv->agg_q_alloc, 0, sizeof(priv->agg_q_alloc));
983 static void iwl_bg_restart(struct work_struct *data)
985 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
987 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
990 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
991 mutex_lock(&priv->mutex);
992 iwlagn_prepare_restart(priv);
993 mutex_unlock(&priv->mutex);
994 iwl_cancel_deferred_work(priv);
995 if (priv->mac80211_registered)
996 ieee80211_restart_hw(priv->hw);
999 "Cannot request restart before registrating with mac80211");
1008 void iwlagn_disable_roc(struct iwl_priv *priv)
1010 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
1012 lockdep_assert_held(&priv->mutex);
1014 if (!priv->hw_roc_setup)
1017 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
1018 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1020 priv->hw_roc_channel = NULL;
1022 memset(ctx->staging.node_addr, 0, ETH_ALEN);
1024 iwlagn_commit_rxon(priv, ctx);
1026 ctx->is_active = false;
1027 priv->hw_roc_setup = false;
1030 static void iwlagn_disable_roc_work(struct work_struct *work)
1032 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1033 hw_roc_disable_work.work);
1035 mutex_lock(&priv->mutex);
1036 iwlagn_disable_roc(priv);
1037 mutex_unlock(&priv->mutex);
1040 /*****************************************************************************
1042 * driver setup and teardown
1044 *****************************************************************************/
1046 static void iwl_setup_deferred_work(struct iwl_priv *priv)
1048 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
1050 INIT_WORK(&priv->restart, iwl_bg_restart);
1051 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
1052 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
1053 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
1054 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
1055 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
1056 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
1057 iwlagn_disable_roc_work);
1059 iwl_setup_scan_deferred_work(priv);
1061 if (priv->cfg->bt_params)
1062 iwlagn_bt_setup_deferred_work(priv);
1064 init_timer(&priv->statistics_periodic);
1065 priv->statistics_periodic.data = (unsigned long)priv;
1066 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
1068 init_timer(&priv->ucode_trace);
1069 priv->ucode_trace.data = (unsigned long)priv;
1070 priv->ucode_trace.function = iwl_bg_ucode_trace;
1073 void iwl_cancel_deferred_work(struct iwl_priv *priv)
1075 if (priv->cfg->bt_params)
1076 iwlagn_bt_cancel_deferred_work(priv);
1078 cancel_work_sync(&priv->run_time_calib_work);
1079 cancel_work_sync(&priv->beacon_update);
1081 iwl_cancel_scan_deferred_work(priv);
1083 cancel_work_sync(&priv->bt_full_concurrency);
1084 cancel_work_sync(&priv->bt_runtime_config);
1085 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1087 del_timer_sync(&priv->statistics_periodic);
1088 del_timer_sync(&priv->ucode_trace);
1091 static int iwl_init_drv(struct iwl_priv *priv)
1093 spin_lock_init(&priv->sta_lock);
1095 mutex_init(&priv->mutex);
1097 INIT_LIST_HEAD(&priv->calib_results);
1099 priv->band = IEEE80211_BAND_2GHZ;
1101 priv->plcp_delta_threshold =
1102 priv->cfg->base_params->plcp_delta_threshold;
1104 priv->iw_mode = NL80211_IFTYPE_STATION;
1105 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
1106 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
1107 priv->agg_tids_count = 0;
1109 priv->ucode_owner = IWL_OWNERSHIP_DRIVER;
1111 priv->rx_statistics_jiffies = jiffies;
1113 /* Choose which receivers/antennas to use */
1114 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1116 iwl_init_scan_params(priv);
1119 if (priv->cfg->bt_params &&
1120 priv->cfg->bt_params->advanced_bt_coexist) {
1121 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1122 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1123 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1124 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
1125 priv->bt_duration = BT_DURATION_LIMIT_DEF;
1126 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
1132 static void iwl_uninit_drv(struct iwl_priv *priv)
1134 kfree(priv->scan_cmd);
1135 kfree(priv->beacon_cmd);
1136 kfree(rcu_dereference_raw(priv->noa_data));
1137 iwl_calib_free_results(priv);
1138 #ifdef CONFIG_IWLWIFI_DEBUGFS
1139 kfree(priv->wowlan_sram);
1143 static void iwl_set_hw_params(struct iwl_priv *priv)
1145 if (priv->cfg->ht_params)
1146 priv->hw_params.use_rts_for_aggregation =
1147 priv->cfg->ht_params->use_rts_for_aggregation;
1149 /* Device-specific setup */
1150 priv->lib->set_hw_params(priv);
1155 /* show what optional capabilities we have */
1156 static void iwl_option_config(struct iwl_priv *priv)
1158 #ifdef CONFIG_IWLWIFI_DEBUG
1159 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG enabled\n");
1161 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG disabled\n");
1164 #ifdef CONFIG_IWLWIFI_DEBUGFS
1165 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS enabled\n");
1167 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS disabled\n");
1170 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1171 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING enabled\n");
1173 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING disabled\n");
1176 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1177 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE enabled\n");
1179 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE disabled\n");
1182 #ifdef CONFIG_IWLWIFI_P2P
1183 IWL_INFO(priv, "CONFIG_IWLWIFI_P2P enabled\n");
1185 IWL_INFO(priv, "CONFIG_IWLWIFI_P2P disabled\n");
1189 static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
1191 struct iwl_nvm_data *data = priv->nvm_data;
1194 if (data->sku_cap_11n_enable &&
1195 !priv->cfg->ht_params) {
1196 IWL_ERR(priv, "Invalid 11n configuration\n");
1200 if (!data->sku_cap_11n_enable && !data->sku_cap_band_24GHz_enable &&
1201 !data->sku_cap_band_52GHz_enable) {
1202 IWL_ERR(priv, "Invalid device sku\n");
1206 debug_msg = "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n";
1207 IWL_DEBUG_INFO(priv, debug_msg,
1208 data->sku_cap_band_24GHz_enable ? "" : "NOT", "enabled",
1209 data->sku_cap_band_52GHz_enable ? "" : "NOT", "enabled",
1210 data->sku_cap_11n_enable ? "" : "NOT", "enabled");
1212 priv->hw_params.tx_chains_num =
1213 num_of_ant(data->valid_tx_ant);
1214 if (priv->cfg->rx_with_siso_diversity)
1215 priv->hw_params.rx_chains_num = 1;
1217 priv->hw_params.rx_chains_num =
1218 num_of_ant(data->valid_rx_ant);
1220 IWL_DEBUG_INFO(priv, "Valid Tx ant: 0x%X, Valid Rx ant: 0x%X\n",
1222 data->valid_rx_ant);
1227 static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
1228 const struct iwl_cfg *cfg,
1229 const struct iwl_fw *fw,
1230 struct dentry *dbgfs_dir)
1232 struct iwl_priv *priv;
1233 struct ieee80211_hw *hw;
1234 struct iwl_op_mode *op_mode;
1237 struct iwl_trans_config trans_cfg = {};
1238 static const u8 no_reclaim_cmds[] = {
1241 REPLY_COMPRESSED_BA,
1242 STATISTICS_NOTIFICATION,
1247 /************************
1248 * 1. Allocating HW data
1249 ************************/
1250 hw = iwl_alloc_all();
1252 pr_err("%s: Cannot allocate network device\n", cfg->name);
1257 op_mode->ops = &iwl_dvm_ops;
1258 priv = IWL_OP_MODE_GET_DVM(op_mode);
1259 priv->trans = trans;
1260 priv->dev = trans->dev;
1264 switch (priv->cfg->device_family) {
1265 case IWL_DEVICE_FAMILY_1000:
1266 case IWL_DEVICE_FAMILY_100:
1267 priv->lib = &iwl1000_lib;
1269 case IWL_DEVICE_FAMILY_2000:
1270 case IWL_DEVICE_FAMILY_105:
1271 priv->lib = &iwl2000_lib;
1273 case IWL_DEVICE_FAMILY_2030:
1274 case IWL_DEVICE_FAMILY_135:
1275 priv->lib = &iwl2030_lib;
1277 case IWL_DEVICE_FAMILY_5000:
1278 priv->lib = &iwl5000_lib;
1280 case IWL_DEVICE_FAMILY_5150:
1281 priv->lib = &iwl5150_lib;
1283 case IWL_DEVICE_FAMILY_6000:
1284 case IWL_DEVICE_FAMILY_6005:
1285 case IWL_DEVICE_FAMILY_6000i:
1286 case IWL_DEVICE_FAMILY_6050:
1287 case IWL_DEVICE_FAMILY_6150:
1288 priv->lib = &iwl6000_lib;
1290 case IWL_DEVICE_FAMILY_6030:
1291 priv->lib = &iwl6030_lib;
1297 if (WARN_ON(!priv->lib))
1301 * Populate the state variables that the transport layer needs
1304 trans_cfg.op_mode = op_mode;
1305 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1306 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1307 trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
1308 if (!iwlwifi_mod_params.wd_disable)
1309 trans_cfg.queue_watchdog_timeout =
1310 priv->cfg->base_params->wd_timeout;
1312 trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
1313 trans_cfg.command_names = iwl_dvm_cmd_strings;
1314 trans_cfg.cmd_fifo = IWLAGN_CMD_FIFO_NUM;
1316 WARN_ON(sizeof(priv->transport_queue_stop) * BITS_PER_BYTE <
1317 priv->cfg->base_params->num_of_queues);
1319 ucode_flags = fw->ucode_capa.flags;
1321 #ifndef CONFIG_IWLWIFI_P2P
1322 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1325 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
1326 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1327 trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1329 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1330 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1333 /* Configure transport layer */
1334 iwl_trans_configure(priv->trans, &trans_cfg);
1336 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1337 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
1339 /* At this point both hw and priv are allocated. */
1341 SET_IEEE80211_DEV(priv->hw, priv->trans->dev);
1343 iwl_option_config(priv);
1345 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
1347 /* is antenna coupling more than 35dB ? */
1348 priv->bt_ant_couple_ok =
1349 (iwlwifi_mod_params.ant_coupling >
1350 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
1353 /* enable/disable bt channel inhibition */
1354 priv->bt_ch_announce = iwlwifi_mod_params.bt_ch_announce;
1355 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
1356 (priv->bt_ch_announce) ? "On" : "Off");
1358 /* these spin locks will be used in apm_ops.init and EEPROM access
1359 * we should init now
1361 spin_lock_init(&priv->statistics.lock);
1363 /***********************
1364 * 2. Read REV register
1365 ***********************/
1366 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
1367 priv->cfg->name, priv->trans->hw_rev);
1369 if (iwl_trans_start_hw(priv->trans))
1372 /* Read the EEPROM */
1373 if (iwl_read_eeprom(priv->trans, &priv->eeprom_blob,
1374 &priv->eeprom_blob_size)) {
1375 IWL_ERR(priv, "Unable to init EEPROM\n");
1379 /* Reset chip to save power until we load uCode during "up". */
1380 iwl_trans_stop_hw(priv->trans, false);
1382 priv->nvm_data = iwl_parse_eeprom_data(priv->trans->dev, priv->cfg,
1384 priv->eeprom_blob_size);
1385 if (!priv->nvm_data)
1386 goto out_free_eeprom_blob;
1388 if (iwl_nvm_check_version(priv->nvm_data, priv->trans))
1389 goto out_free_eeprom;
1391 if (iwl_eeprom_init_hw_params(priv))
1392 goto out_free_eeprom;
1394 /* extract MAC Address */
1395 memcpy(priv->addresses[0].addr, priv->nvm_data->hw_addr, ETH_ALEN);
1396 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
1397 priv->hw->wiphy->addresses = priv->addresses;
1398 priv->hw->wiphy->n_addresses = 1;
1399 num_mac = priv->nvm_data->n_hw_addrs;
1401 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
1403 priv->addresses[1].addr[5]++;
1404 priv->hw->wiphy->n_addresses++;
1407 /************************
1408 * 4. Setup HW constants
1409 ************************/
1410 iwl_set_hw_params(priv);
1412 if (!(priv->nvm_data->sku_cap_ipan_enable)) {
1413 IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN");
1414 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1416 * if not PAN, then don't support P2P -- might be a uCode
1417 * packaging bug or due to the eeprom check above
1419 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1420 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1421 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1423 /* Configure transport layer again*/
1424 iwl_trans_configure(priv->trans, &trans_cfg);
1427 /*******************
1429 *******************/
1430 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
1431 priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
1432 if (i < IWLAGN_FIRST_AMPDU_QUEUE &&
1433 i != IWL_DEFAULT_CMD_QUEUE_NUM &&
1434 i != IWL_IPAN_CMD_QUEUE_NUM)
1435 priv->queue_to_mac80211[i] = i;
1436 atomic_set(&priv->queue_stop_count[i], 0);
1439 if (iwl_init_drv(priv))
1440 goto out_free_eeprom;
1442 /* At this point both hw and priv are initialized. */
1444 /********************
1446 ********************/
1447 iwl_setup_deferred_work(priv);
1448 iwl_setup_rx_handlers(priv);
1449 iwl_testmode_init(priv);
1451 iwl_power_initialize(priv);
1452 iwl_tt_initialize(priv);
1454 snprintf(priv->hw->wiphy->fw_version,
1455 sizeof(priv->hw->wiphy->fw_version),
1456 "%s", fw->fw_version);
1458 priv->new_scan_threshold_behaviour =
1459 !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1461 priv->phy_calib_chain_noise_reset_cmd =
1462 fw->ucode_capa.standard_phy_calibration_size;
1463 priv->phy_calib_chain_noise_gain_cmd =
1464 fw->ucode_capa.standard_phy_calibration_size + 1;
1466 /* initialize all valid contexts */
1467 iwl_init_context(priv, ucode_flags);
1469 /**************************************************
1470 * This is still part of probe() in a sense...
1472 * 7. Setup and register with mac80211 and debugfs
1473 **************************************************/
1474 if (iwlagn_mac_setup_register(priv, &fw->ucode_capa))
1475 goto out_destroy_workqueue;
1477 if (iwl_dbgfs_register(priv, dbgfs_dir))
1478 goto out_mac80211_unregister;
1482 out_mac80211_unregister:
1483 iwlagn_mac_unregister(priv);
1484 out_destroy_workqueue:
1486 iwl_testmode_free(priv);
1487 iwl_cancel_deferred_work(priv);
1488 destroy_workqueue(priv->workqueue);
1489 priv->workqueue = NULL;
1490 iwl_uninit_drv(priv);
1491 out_free_eeprom_blob:
1492 kfree(priv->eeprom_blob);
1494 iwl_free_nvm_data(priv->nvm_data);
1496 ieee80211_free_hw(priv->hw);
1502 static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
1504 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1506 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
1508 iwl_testmode_free(priv);
1509 iwlagn_mac_unregister(priv);
1513 kfree(priv->eeprom_blob);
1514 iwl_free_nvm_data(priv->nvm_data);
1516 /*netif_stop_queue(dev); */
1517 flush_workqueue(priv->workqueue);
1519 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1520 * priv->workqueue... so we can't take down the workqueue
1522 destroy_workqueue(priv->workqueue);
1523 priv->workqueue = NULL;
1525 iwl_uninit_drv(priv);
1527 dev_kfree_skb(priv->beacon_skb);
1529 iwl_trans_stop_hw(priv->trans, true);
1530 ieee80211_free_hw(priv->hw);
1533 static const char * const desc_lookup_text[] = {
1538 "NMI_INTERRUPT_WDG",
1542 "HW_ERROR_TUNE_LOCK",
1543 "HW_ERROR_TEMPERATURE",
1544 "ILLEGAL_CHAN_FREQ",
1547 "NMI_INTERRUPT_HOST",
1548 "NMI_INTERRUPT_ACTION_PT",
1549 "NMI_INTERRUPT_UNKNOWN",
1550 "UCODE_VERSION_MISMATCH",
1551 "HW_ERROR_ABS_LOCK",
1552 "HW_ERROR_CAL_LOCK_FAIL",
1553 "NMI_INTERRUPT_INST_ACTION_PT",
1554 "NMI_INTERRUPT_DATA_ACTION_PT",
1556 "NMI_INTERRUPT_TRM",
1557 "NMI_INTERRUPT_BREAK_POINT",
1564 static struct { char *name; u8 num; } advanced_lookup[] = {
1565 { "NMI_INTERRUPT_WDG", 0x34 },
1566 { "SYSASSERT", 0x35 },
1567 { "UCODE_VERSION_MISMATCH", 0x37 },
1568 { "BAD_COMMAND", 0x38 },
1569 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1570 { "FATAL_ERROR", 0x3D },
1571 { "NMI_TRM_HW_ERR", 0x46 },
1572 { "NMI_INTERRUPT_TRM", 0x4C },
1573 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1574 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1575 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1576 { "NMI_INTERRUPT_HOST", 0x66 },
1577 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1578 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1579 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1580 { "ADVANCED_SYSASSERT", 0 },
1583 static const char *desc_lookup(u32 num)
1586 int max = ARRAY_SIZE(desc_lookup_text);
1589 return desc_lookup_text[num];
1591 max = ARRAY_SIZE(advanced_lookup) - 1;
1592 for (i = 0; i < max; i++) {
1593 if (advanced_lookup[i].num == num)
1596 return advanced_lookup[i].name;
1599 #define ERROR_START_OFFSET (1 * sizeof(u32))
1600 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1602 static void iwl_dump_nic_error_log(struct iwl_priv *priv)
1604 struct iwl_trans *trans = priv->trans;
1606 struct iwl_error_event_table table;
1608 base = priv->device_pointers.error_event_table;
1609 if (priv->cur_ucode == IWL_UCODE_INIT) {
1611 base = priv->fw->init_errlog_ptr;
1614 base = priv->fw->inst_errlog_ptr;
1617 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
1619 "Not valid error log pointer 0x%08X for %s uCode\n",
1621 (priv->cur_ucode == IWL_UCODE_INIT)
1626 /*TODO: Update dbgfs with ISR error stats obtained below */
1627 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
1629 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
1630 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
1631 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
1632 priv->status, table.valid);
1635 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
1636 table.data1, table.data2, table.line,
1637 table.blink1, table.blink2, table.ilink1,
1638 table.ilink2, table.bcon_time, table.gp1,
1639 table.gp2, table.gp3, table.ucode_ver,
1640 table.hw_ver, table.brd_ver);
1641 IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id,
1642 desc_lookup(table.error_id));
1643 IWL_ERR(priv, "0x%08X | uPc\n", table.pc);
1644 IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1);
1645 IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2);
1646 IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1);
1647 IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2);
1648 IWL_ERR(priv, "0x%08X | data1\n", table.data1);
1649 IWL_ERR(priv, "0x%08X | data2\n", table.data2);
1650 IWL_ERR(priv, "0x%08X | line\n", table.line);
1651 IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time);
1652 IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low);
1653 IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi);
1654 IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1);
1655 IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2);
1656 IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3);
1657 IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver);
1658 IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver);
1659 IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver);
1660 IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd);
1661 IWL_ERR(priv, "0x%08X | isr0\n", table.isr0);
1662 IWL_ERR(priv, "0x%08X | isr1\n", table.isr1);
1663 IWL_ERR(priv, "0x%08X | isr2\n", table.isr2);
1664 IWL_ERR(priv, "0x%08X | isr3\n", table.isr3);
1665 IWL_ERR(priv, "0x%08X | isr4\n", table.isr4);
1666 IWL_ERR(priv, "0x%08X | isr_pref\n", table.isr_pref);
1667 IWL_ERR(priv, "0x%08X | wait_event\n", table.wait_event);
1668 IWL_ERR(priv, "0x%08X | l2p_control\n", table.l2p_control);
1669 IWL_ERR(priv, "0x%08X | l2p_duration\n", table.l2p_duration);
1670 IWL_ERR(priv, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
1671 IWL_ERR(priv, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
1672 IWL_ERR(priv, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
1673 IWL_ERR(priv, "0x%08X | timestamp\n", table.u_timestamp);
1674 IWL_ERR(priv, "0x%08X | flow_handler\n", table.flow_handler);
1677 #define EVENT_START_OFFSET (4 * sizeof(u32))
1680 * iwl_print_event_log - Dump error event log to syslog
1683 static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
1684 u32 num_events, u32 mode,
1685 int pos, char **buf, size_t bufsz)
1688 u32 base; /* SRAM byte address of event log header */
1689 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
1690 u32 ptr; /* SRAM byte address of log data */
1691 u32 ev, time, data; /* event log data */
1692 unsigned long reg_flags;
1694 struct iwl_trans *trans = priv->trans;
1696 if (num_events == 0)
1699 base = priv->device_pointers.log_event_table;
1700 if (priv->cur_ucode == IWL_UCODE_INIT) {
1702 base = priv->fw->init_evtlog_ptr;
1705 base = priv->fw->inst_evtlog_ptr;
1709 event_size = 2 * sizeof(u32);
1711 event_size = 3 * sizeof(u32);
1713 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
1715 /* Make sure device is powered up for SRAM reads */
1716 if (!iwl_trans_grab_nic_access(trans, false, ®_flags))
1719 /* Set starting address; reads will auto-increment */
1720 iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr);
1722 /* "time" is actually "data" for mode 0 (no timestamp).
1723 * place event id # at far right for easier visual parsing. */
1724 for (i = 0; i < num_events; i++) {
1725 ev = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1726 time = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1730 pos += scnprintf(*buf + pos, bufsz - pos,
1731 "EVT_LOG:0x%08x:%04u\n",
1734 trace_iwlwifi_dev_ucode_event(trans->dev, 0,
1736 IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
1740 data = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1742 pos += scnprintf(*buf + pos, bufsz - pos,
1743 "EVT_LOGT:%010u:0x%08x:%04u\n",
1746 IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
1748 trace_iwlwifi_dev_ucode_event(trans->dev, time,
1754 /* Allow device to power down */
1755 iwl_trans_release_nic_access(trans, ®_flags);
1760 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1762 static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
1763 u32 num_wraps, u32 next_entry,
1765 int pos, char **buf, size_t bufsz)
1768 * display the newest DEFAULT_LOG_ENTRIES entries
1769 * i.e the entries just before the next ont that uCode would fill.
1772 if (next_entry < size) {
1773 pos = iwl_print_event_log(priv,
1774 capacity - (size - next_entry),
1775 size - next_entry, mode,
1777 pos = iwl_print_event_log(priv, 0,
1781 pos = iwl_print_event_log(priv, next_entry - size,
1782 size, mode, pos, buf, bufsz);
1784 if (next_entry < size) {
1785 pos = iwl_print_event_log(priv, 0, next_entry,
1786 mode, pos, buf, bufsz);
1788 pos = iwl_print_event_log(priv, next_entry - size,
1789 size, mode, pos, buf, bufsz);
1795 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1797 int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
1800 u32 base; /* SRAM byte address of event log header */
1801 u32 capacity; /* event log capacity in # entries */
1802 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
1803 u32 num_wraps; /* # times uCode wrapped to top of log */
1804 u32 next_entry; /* index of next entry to be written by uCode */
1805 u32 size; /* # entries that we'll print */
1809 struct iwl_trans *trans = priv->trans;
1811 base = priv->device_pointers.log_event_table;
1812 if (priv->cur_ucode == IWL_UCODE_INIT) {
1813 logsize = priv->fw->init_evtlog_size;
1815 base = priv->fw->init_evtlog_ptr;
1817 logsize = priv->fw->inst_evtlog_size;
1819 base = priv->fw->inst_evtlog_ptr;
1822 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
1824 "Invalid event log pointer 0x%08X for %s uCode\n",
1826 (priv->cur_ucode == IWL_UCODE_INIT)
1831 /* event log header */
1832 capacity = iwl_trans_read_mem32(trans, base);
1833 mode = iwl_trans_read_mem32(trans, base + (1 * sizeof(u32)));
1834 num_wraps = iwl_trans_read_mem32(trans, base + (2 * sizeof(u32)));
1835 next_entry = iwl_trans_read_mem32(trans, base + (3 * sizeof(u32)));
1837 if (capacity > logsize) {
1838 IWL_ERR(priv, "Log capacity %d is bogus, limit to %d "
1839 "entries\n", capacity, logsize);
1843 if (next_entry > logsize) {
1844 IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
1845 next_entry, logsize);
1846 next_entry = logsize;
1849 size = num_wraps ? capacity : next_entry;
1851 /* bail out if nothing in log */
1853 IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n");
1857 #ifdef CONFIG_IWLWIFI_DEBUG
1858 if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log)
1859 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
1860 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
1862 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
1863 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
1865 IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
1868 #ifdef CONFIG_IWLWIFI_DEBUG
1871 bufsz = capacity * 48;
1874 *buf = kmalloc(bufsz, GFP_KERNEL);
1878 if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) {
1880 * if uCode has wrapped back to top of log,
1881 * start at the oldest entry,
1882 * i.e the next one that uCode would fill.
1885 pos = iwl_print_event_log(priv, next_entry,
1886 capacity - next_entry, mode,
1888 /* (then/else) start at top of log */
1889 pos = iwl_print_event_log(priv, 0,
1890 next_entry, mode, pos, buf, bufsz);
1892 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
1893 next_entry, size, mode,
1896 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
1897 next_entry, size, mode,
1903 static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
1905 unsigned int reload_msec;
1906 unsigned long reload_jiffies;
1908 #ifdef CONFIG_IWLWIFI_DEBUG
1909 if (iwl_have_debug_level(IWL_DL_FW_ERRORS))
1910 iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS);
1913 /* uCode is no longer loaded. */
1914 priv->ucode_loaded = false;
1916 /* Set the FW error flag -- cleared on iwl_down */
1917 set_bit(STATUS_FW_ERROR, &priv->status);
1919 iwl_abort_notification_waits(&priv->notif_wait);
1921 /* Keep the restart process from trying to send host
1922 * commands by clearing the ready bit */
1923 clear_bit(STATUS_READY, &priv->status);
1927 * If firmware keep reloading, then it indicate something
1928 * serious wrong and firmware having problem to recover
1929 * from it. Instead of keep trying which will fill the syslog
1930 * and hang the system, let's just stop it
1932 reload_jiffies = jiffies;
1933 reload_msec = jiffies_to_msecs((long) reload_jiffies -
1934 (long) priv->reload_jiffies);
1935 priv->reload_jiffies = reload_jiffies;
1936 if (reload_msec <= IWL_MIN_RELOAD_DURATION) {
1937 priv->reload_count++;
1938 if (priv->reload_count >= IWL_MAX_CONTINUE_RELOAD_CNT) {
1939 IWL_ERR(priv, "BUG_ON, Stop restarting\n");
1943 priv->reload_count = 0;
1946 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1947 if (iwlwifi_mod_params.restart_fw) {
1948 IWL_DEBUG_FW_ERRORS(priv,
1949 "Restarting adapter due to uCode error.\n");
1950 queue_work(priv->workqueue, &priv->restart);
1952 IWL_DEBUG_FW_ERRORS(priv,
1953 "Detected FW error, but not restarting\n");
1957 static void iwl_nic_error(struct iwl_op_mode *op_mode)
1959 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1961 IWL_ERR(priv, "Loaded firmware version: %s\n",
1962 priv->fw->fw_version);
1964 iwl_dump_nic_error_log(priv);
1965 iwl_dump_nic_event_log(priv, false, NULL);
1967 iwlagn_fw_error(priv, false);
1970 static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode)
1972 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1974 if (!iwl_check_for_ct_kill(priv)) {
1975 IWL_ERR(priv, "Restarting adapter queue is full\n");
1976 iwlagn_fw_error(priv, false);
1980 #define EEPROM_RF_CONFIG_TYPE_MAX 0x3
1982 static void iwl_nic_config(struct iwl_op_mode *op_mode)
1984 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1987 iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG,
1988 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
1989 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP,
1990 (CSR_HW_REV_STEP(priv->trans->hw_rev) <<
1991 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP) |
1992 (CSR_HW_REV_DASH(priv->trans->hw_rev) <<
1993 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH));
1995 /* write radio config values to register */
1996 if (priv->nvm_data->radio_cfg_type <= EEPROM_RF_CONFIG_TYPE_MAX) {
1998 priv->nvm_data->radio_cfg_type <<
1999 CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE |
2000 priv->nvm_data->radio_cfg_step <<
2001 CSR_HW_IF_CONFIG_REG_POS_PHY_STEP |
2002 priv->nvm_data->radio_cfg_dash <<
2003 CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
2005 iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG,
2006 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
2007 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
2008 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH,
2011 IWL_INFO(priv, "Radio type=0x%x-0x%x-0x%x\n",
2012 priv->nvm_data->radio_cfg_type,
2013 priv->nvm_data->radio_cfg_step,
2014 priv->nvm_data->radio_cfg_dash);
2019 /* set CSR_HW_CONFIG_REG for uCode use */
2020 iwl_set_bit(priv->trans, CSR_HW_IF_CONFIG_REG,
2021 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
2022 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
2024 /* W/A : NIC is stuck in a reset state after Early PCIe power off
2025 * (PCIe power is lost before PERST# is asserted),
2026 * causing ME FW to lose ownership and not being able to obtain it back.
2028 iwl_set_bits_mask_prph(priv->trans, APMG_PS_CTRL_REG,
2029 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
2030 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
2032 if (priv->lib->nic_config)
2033 priv->lib->nic_config(priv);
2036 static void iwl_wimax_active(struct iwl_op_mode *op_mode)
2038 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2040 clear_bit(STATUS_READY, &priv->status);
2041 IWL_ERR(priv, "RF is used by WiMAX\n");
2044 static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
2046 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2047 int mq = priv->queue_to_mac80211[queue];
2049 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
2052 if (atomic_inc_return(&priv->queue_stop_count[mq]) > 1) {
2053 IWL_DEBUG_TX_QUEUES(priv,
2054 "queue %d (mac80211 %d) already stopped\n",
2059 set_bit(mq, &priv->transport_queue_stop);
2060 ieee80211_stop_queue(priv->hw, mq);
2063 static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
2065 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2066 int mq = priv->queue_to_mac80211[queue];
2068 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
2071 if (atomic_dec_return(&priv->queue_stop_count[mq]) > 0) {
2072 IWL_DEBUG_TX_QUEUES(priv,
2073 "queue %d (mac80211 %d) already awake\n",
2078 clear_bit(mq, &priv->transport_queue_stop);
2080 if (!priv->passive_no_rx)
2081 ieee80211_wake_queue(priv->hw, mq);
2084 void iwlagn_lift_passive_no_rx(struct iwl_priv *priv)
2088 if (!priv->passive_no_rx)
2091 for (mq = 0; mq < IWLAGN_FIRST_AMPDU_QUEUE; mq++) {
2092 if (!test_bit(mq, &priv->transport_queue_stop)) {
2093 IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d", mq);
2094 ieee80211_wake_queue(priv->hw, mq);
2096 IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d", mq);
2100 priv->passive_no_rx = false;
2103 static void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
2105 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2106 struct ieee80211_tx_info *info;
2108 info = IEEE80211_SKB_CB(skb);
2109 iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]);
2110 ieee80211_free_txskb(priv->hw, skb);
2113 static void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
2115 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2118 set_bit(STATUS_RF_KILL_HW, &priv->status);
2120 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2122 wiphy_rfkill_set_hw_state(priv->hw->wiphy, state);
2125 static const struct iwl_op_mode_ops iwl_dvm_ops = {
2126 .start = iwl_op_mode_dvm_start,
2127 .stop = iwl_op_mode_dvm_stop,
2128 .rx = iwl_rx_dispatch,
2129 .queue_full = iwl_stop_sw_queue,
2130 .queue_not_full = iwl_wake_sw_queue,
2131 .hw_rf_kill = iwl_set_hw_rfkill_state,
2132 .free_skb = iwl_free_skb,
2133 .nic_error = iwl_nic_error,
2134 .cmd_queue_full = iwl_cmd_queue_full,
2135 .nic_config = iwl_nic_config,
2136 .wimax_active = iwl_wimax_active,
2139 /*****************************************************************************
2141 * driver and module entry point
2143 *****************************************************************************/
2144 static int __init iwl_init(void)
2149 ret = iwlagn_rate_control_register();
2151 pr_err("Unable to register rate control algorithm: %d\n", ret);
2155 ret = iwl_opmode_register("iwldvm", &iwl_dvm_ops);
2157 pr_err("Unable to register op_mode: %d\n", ret);
2158 iwlagn_rate_control_unregister();
2163 module_init(iwl_init);
2165 static void __exit iwl_exit(void)
2167 iwl_opmode_deregister("iwldvm");
2168 iwlagn_rate_control_unregister();
2170 module_exit(iwl_exit);