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 mutex_lock(&priv->mutex);
256 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
259 /* dont send host command if rf-kill is on */
260 if (!iwl_is_ready_rf(priv))
263 iwlagn_send_advance_bt_config(priv);
265 mutex_unlock(&priv->mutex);
268 static void iwl_bg_bt_full_concurrency(struct work_struct *work)
270 struct iwl_priv *priv =
271 container_of(work, struct iwl_priv, bt_full_concurrency);
272 struct iwl_rxon_context *ctx;
274 mutex_lock(&priv->mutex);
276 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
279 /* dont send host command if rf-kill is on */
280 if (!iwl_is_ready_rf(priv))
283 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
284 priv->bt_full_concurrent ?
285 "full concurrency" : "3-wire");
288 * LQ & RXON updated cmds must be sent before BT Config cmd
289 * to avoid 3-wire collisions
291 for_each_context(priv, ctx) {
292 iwlagn_set_rxon_chain(priv, ctx);
293 iwlagn_commit_rxon(priv, ctx);
296 iwlagn_send_advance_bt_config(priv);
298 mutex_unlock(&priv->mutex);
301 int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
303 struct iwl_statistics_cmd statistics_cmd = {
304 .configuration_flags =
305 clear ? IWL_STATS_CONF_CLEAR_STATS : 0,
308 if (flags & CMD_ASYNC)
309 return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
311 sizeof(struct iwl_statistics_cmd),
314 return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
316 sizeof(struct iwl_statistics_cmd),
321 * iwl_bg_statistics_periodic - Timer callback to queue statistics
323 * This callback is provided in order to send a statistics request.
325 * This timer function is continually reset to execute within
326 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
327 * was received. We need to ensure we receive the statistics in order
328 * to update the temperature used for calibrating the TXPOWER.
330 static void iwl_bg_statistics_periodic(unsigned long data)
332 struct iwl_priv *priv = (struct iwl_priv *)data;
334 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
337 /* dont send host command if rf-kill is on */
338 if (!iwl_is_ready_rf(priv))
341 iwl_send_statistics_request(priv, CMD_ASYNC, false);
345 static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
346 u32 start_idx, u32 num_events,
347 u32 capacity, u32 mode)
350 u32 ptr; /* SRAM byte address of log data */
351 u32 ev, time, data; /* event log data */
352 unsigned long reg_flags;
355 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
357 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
359 /* Make sure device is powered up for SRAM reads */
360 if (!iwl_trans_grab_nic_access(priv->trans, false, ®_flags))
363 /* Set starting address; reads will auto-increment */
364 iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, ptr);
367 * Refuse to read more than would have fit into the log from
368 * the current start_idx. This used to happen due to the race
369 * described below, but now WARN because the code below should
370 * prevent it from happening here.
372 if (WARN_ON(num_events > capacity - start_idx))
373 num_events = capacity - start_idx;
376 * "time" is actually "data" for mode 0 (no timestamp).
377 * place event id # at far right for easier visual parsing.
379 for (i = 0; i < num_events; i++) {
380 ev = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
381 time = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
383 trace_iwlwifi_dev_ucode_cont_event(
384 priv->trans->dev, 0, time, ev);
386 data = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
387 trace_iwlwifi_dev_ucode_cont_event(
388 priv->trans->dev, time, data, ev);
391 /* Allow device to power down */
392 iwl_trans_release_nic_access(priv->trans, ®_flags);
395 static void iwl_continuous_event_trace(struct iwl_priv *priv)
397 u32 capacity; /* event log capacity in # entries */
404 u32 base; /* SRAM byte address of event log header */
405 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
406 u32 num_wraps; /* # times uCode wrapped to top of log */
407 u32 next_entry; /* index of next entry to be written by uCode */
409 base = priv->device_pointers.log_event_table;
410 if (iwlagn_hw_valid_rtc_data_addr(base)) {
411 iwl_trans_read_mem_bytes(priv->trans, base,
412 &read, sizeof(read));
413 capacity = read.capacity;
415 num_wraps = read.wrap_counter;
416 next_entry = read.write_counter;
421 * Unfortunately, the uCode doesn't use temporary variables.
422 * Therefore, it can happen that we read next_entry == capacity,
423 * which really means next_entry == 0.
425 if (unlikely(next_entry == capacity))
428 * Additionally, the uCode increases the write pointer before
429 * the wraps counter, so if the write pointer is smaller than
430 * the old write pointer (wrap occurred) but we read that no
431 * wrap occurred, we actually read between the next_entry and
432 * num_wraps update (this does happen in practice!!) -- take
433 * that into account by increasing num_wraps.
435 if (unlikely(next_entry < priv->event_log.next_entry &&
436 num_wraps == priv->event_log.num_wraps))
439 if (num_wraps == priv->event_log.num_wraps) {
440 iwl_print_cont_event_trace(
441 priv, base, priv->event_log.next_entry,
442 next_entry - priv->event_log.next_entry,
445 priv->event_log.non_wraps_count++;
447 if (num_wraps - priv->event_log.num_wraps > 1)
448 priv->event_log.wraps_more_count++;
450 priv->event_log.wraps_once_count++;
452 trace_iwlwifi_dev_ucode_wrap_event(priv->trans->dev,
453 num_wraps - priv->event_log.num_wraps,
454 next_entry, priv->event_log.next_entry);
456 if (next_entry < priv->event_log.next_entry) {
457 iwl_print_cont_event_trace(
458 priv, base, priv->event_log.next_entry,
459 capacity - priv->event_log.next_entry,
462 iwl_print_cont_event_trace(
463 priv, base, 0, next_entry, capacity, mode);
465 iwl_print_cont_event_trace(
466 priv, base, next_entry,
467 capacity - next_entry,
470 iwl_print_cont_event_trace(
471 priv, base, 0, next_entry, capacity, mode);
475 priv->event_log.num_wraps = num_wraps;
476 priv->event_log.next_entry = next_entry;
480 * iwl_bg_ucode_trace - Timer callback to log ucode event
482 * The timer is continually set to execute every
483 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
484 * this function is to perform continuous uCode event logging operation
487 static void iwl_bg_ucode_trace(unsigned long data)
489 struct iwl_priv *priv = (struct iwl_priv *)data;
491 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
494 if (priv->event_log.ucode_trace) {
495 iwl_continuous_event_trace(priv);
496 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
497 mod_timer(&priv->ucode_trace,
498 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
502 static void iwl_bg_tx_flush(struct work_struct *work)
504 struct iwl_priv *priv =
505 container_of(work, struct iwl_priv, tx_flush);
507 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
510 /* do nothing if rf-kill is on */
511 if (!iwl_is_ready_rf(priv))
514 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
515 iwlagn_dev_txfifo_flush(priv);
519 * queue/FIFO/AC mapping definitions
522 static const u8 iwlagn_bss_ac_to_fifo[] = {
529 static const u8 iwlagn_bss_ac_to_queue[] = {
533 static const u8 iwlagn_pan_ac_to_fifo[] = {
540 static const u8 iwlagn_pan_ac_to_queue[] = {
544 static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
549 * The default context is always valid,
550 * the PAN context depends on uCode.
552 priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
553 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
554 priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
556 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
557 priv->contexts[i].ctxid = i;
559 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
560 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
561 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
562 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
563 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
564 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
565 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
566 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
567 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
568 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
569 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_MONITOR);
570 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
571 BIT(NL80211_IFTYPE_STATION);
572 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
573 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
574 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
575 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
576 memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue,
577 iwlagn_bss_ac_to_queue, sizeof(iwlagn_bss_ac_to_queue));
578 memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo,
579 iwlagn_bss_ac_to_fifo, sizeof(iwlagn_bss_ac_to_fifo));
581 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
582 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
583 REPLY_WIPAN_RXON_TIMING;
584 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
585 REPLY_WIPAN_RXON_ASSOC;
586 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
587 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
588 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
589 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
590 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
591 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
592 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
594 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
595 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
596 BIT(NL80211_IFTYPE_P2P_CLIENT) |
597 BIT(NL80211_IFTYPE_P2P_GO);
599 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
600 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
601 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
602 memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue,
603 iwlagn_pan_ac_to_queue, sizeof(iwlagn_pan_ac_to_queue));
604 memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo,
605 iwlagn_pan_ac_to_fifo, sizeof(iwlagn_pan_ac_to_fifo));
606 priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
608 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
611 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
613 struct iwl_ct_kill_config cmd;
614 struct iwl_ct_kill_throttling_config adv_cmd;
617 iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
618 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
620 priv->thermal_throttle.ct_kill_toggle = false;
622 if (priv->cfg->base_params->support_ct_kill_exit) {
623 adv_cmd.critical_temperature_enter =
624 cpu_to_le32(priv->hw_params.ct_kill_threshold);
625 adv_cmd.critical_temperature_exit =
626 cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);
628 ret = iwl_dvm_send_cmd_pdu(priv,
629 REPLY_CT_KILL_CONFIG_CMD,
630 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
632 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
634 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
635 "succeeded, critical temperature enter is %d,"
637 priv->hw_params.ct_kill_threshold,
638 priv->hw_params.ct_kill_exit_threshold);
640 cmd.critical_temperature_R =
641 cpu_to_le32(priv->hw_params.ct_kill_threshold);
643 ret = iwl_dvm_send_cmd_pdu(priv,
644 REPLY_CT_KILL_CONFIG_CMD,
645 CMD_SYNC, sizeof(cmd), &cmd);
647 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
649 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
651 "critical temperature is %d\n",
652 priv->hw_params.ct_kill_threshold);
656 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
658 struct iwl_calib_cfg_cmd calib_cfg_cmd;
659 struct iwl_host_cmd cmd = {
660 .id = CALIBRATION_CFG_CMD,
661 .len = { sizeof(struct iwl_calib_cfg_cmd), },
662 .data = { &calib_cfg_cmd, },
665 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
666 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
667 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
669 return iwl_dvm_send_cmd(priv, &cmd);
673 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
675 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
676 .valid = cpu_to_le32(valid_tx_ant),
679 if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) {
680 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
681 return iwl_dvm_send_cmd_pdu(priv,
682 TX_ANT_CONFIGURATION_CMD,
684 sizeof(struct iwl_tx_ant_config_cmd),
687 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
692 static void iwl_send_bt_config(struct iwl_priv *priv)
694 struct iwl_bt_cmd bt_cmd = {
695 .lead_time = BT_LEAD_TIME_DEF,
696 .max_kill = BT_MAX_KILL_DEF,
701 if (!iwlwifi_mod_params.bt_coex_active)
702 bt_cmd.flags = BT_COEX_DISABLE;
704 bt_cmd.flags = BT_COEX_ENABLE;
706 priv->bt_enable_flag = bt_cmd.flags;
707 IWL_DEBUG_INFO(priv, "BT coex %s\n",
708 (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
710 if (iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
711 CMD_SYNC, sizeof(struct iwl_bt_cmd), &bt_cmd))
712 IWL_ERR(priv, "failed to send BT Coex Config\n");
716 * iwl_alive_start - called after REPLY_ALIVE notification received
717 * from protocol/runtime uCode (initialization uCode's
718 * Alive gets handled by iwl_init_alive_start()).
720 int iwl_alive_start(struct iwl_priv *priv)
723 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
725 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
727 /* After the ALIVE response, we can send host commands to the uCode */
728 set_bit(STATUS_ALIVE, &priv->status);
730 if (iwl_is_rfkill(priv))
733 if (priv->event_log.ucode_trace) {
734 /* start collecting data now */
735 mod_timer(&priv->ucode_trace, jiffies);
738 /* download priority table before any calibration request */
739 if (priv->cfg->bt_params &&
740 priv->cfg->bt_params->advanced_bt_coexist) {
741 /* Configure Bluetooth device coexistence support */
742 if (priv->cfg->bt_params->bt_sco_disable)
743 priv->bt_enable_pspoll = false;
745 priv->bt_enable_pspoll = true;
747 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
748 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
749 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
750 iwlagn_send_advance_bt_config(priv);
751 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
752 priv->cur_rssi_ctx = NULL;
754 iwl_send_prio_tbl(priv);
756 /* FIXME: w/a to force change uCode BT state machine */
757 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
758 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
761 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
762 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
765 } else if (priv->cfg->bt_params) {
767 * default is 2-wire BT coexexistence support
769 iwl_send_bt_config(priv);
773 * Perform runtime calibrations, including DC calibration.
775 iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
777 ieee80211_wake_queues(priv->hw);
779 /* Configure Tx antenna selection based on H/W config */
780 iwlagn_send_tx_ant_config(priv, priv->nvm_data->valid_tx_ant);
782 if (iwl_is_associated_ctx(ctx) && !priv->wowlan) {
783 struct iwl_rxon_cmd *active_rxon =
784 (struct iwl_rxon_cmd *)&ctx->active;
785 /* apply any changes in staging */
786 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
787 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
789 struct iwl_rxon_context *tmp;
790 /* Initialize our rx_config data */
791 for_each_context(priv, tmp)
792 iwl_connection_init_rx_config(priv, tmp);
794 iwlagn_set_rxon_chain(priv, ctx);
798 /* WoWLAN ucode will not reply in the same way, skip it */
799 iwl_reset_run_time_calib(priv);
802 set_bit(STATUS_READY, &priv->status);
804 /* Configure the adapter for unassociated operation */
805 ret = iwlagn_commit_rxon(priv, ctx);
809 /* At this point, the NIC is initialized and operational */
810 iwl_rf_kill_ct_config(priv);
812 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
814 return iwl_power_update_mode(priv, true);
818 * iwl_clear_driver_stations - clear knowledge of all stations from driver
819 * @priv: iwl priv struct
821 * This is called during iwl_down() to make sure that in the case
822 * we're coming there from a hardware restart mac80211 will be
823 * able to reconfigure stations -- if we're getting there in the
824 * normal down flow then the stations will already be cleared.
826 static void iwl_clear_driver_stations(struct iwl_priv *priv)
828 struct iwl_rxon_context *ctx;
830 spin_lock_bh(&priv->sta_lock);
831 memset(priv->stations, 0, sizeof(priv->stations));
832 priv->num_stations = 0;
834 priv->ucode_key_table = 0;
836 for_each_context(priv, ctx) {
838 * Remove all key information that is not stored as part
839 * of station information since mac80211 may not have had
840 * a chance to remove all the keys. When device is
841 * reconfigured by mac80211 after an error all keys will
844 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
845 ctx->key_mapping_keys = 0;
848 spin_unlock_bh(&priv->sta_lock);
851 void iwl_down(struct iwl_priv *priv)
855 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
857 lockdep_assert_held(&priv->mutex);
859 iwl_scan_cancel_timeout(priv, 200);
862 * If active, scanning won't cancel it, so say it expired.
863 * No race since we hold the mutex here and a new one
864 * can't come in at this time.
866 if (priv->ucode_loaded && priv->cur_ucode != IWL_UCODE_INIT)
867 ieee80211_remain_on_channel_expired(priv->hw);
870 test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
872 iwl_clear_ucode_stations(priv, NULL);
873 iwl_dealloc_bcast_stations(priv);
874 iwl_clear_driver_stations(priv);
876 /* reset BT coex data */
878 priv->cur_rssi_ctx = NULL;
880 if (priv->cfg->bt_params)
881 priv->bt_traffic_load =
882 priv->cfg->bt_params->bt_init_traffic_load;
884 priv->bt_traffic_load = 0;
885 priv->bt_full_concurrent = false;
886 priv->bt_ci_compliance = 0;
888 /* Wipe out the EXIT_PENDING status bit if we are not actually
889 * exiting the module */
891 clear_bit(STATUS_EXIT_PENDING, &priv->status);
893 if (priv->mac80211_registered)
894 ieee80211_stop_queues(priv->hw);
896 priv->ucode_loaded = false;
897 iwl_trans_stop_device(priv->trans);
899 /* Set num_aux_in_flight must be done after the transport is stopped */
900 atomic_set(&priv->num_aux_in_flight, 0);
902 /* Clear out all status bits but a few that are stable across reset */
903 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
905 test_bit(STATUS_FW_ERROR, &priv->status) <<
907 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
910 dev_kfree_skb(priv->beacon_skb);
911 priv->beacon_skb = NULL;
914 /*****************************************************************************
916 * Workqueue callbacks
918 *****************************************************************************/
920 static void iwl_bg_run_time_calib_work(struct work_struct *work)
922 struct iwl_priv *priv = container_of(work, struct iwl_priv,
923 run_time_calib_work);
925 mutex_lock(&priv->mutex);
927 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
928 test_bit(STATUS_SCANNING, &priv->status)) {
929 mutex_unlock(&priv->mutex);
933 if (priv->start_calib) {
934 iwl_chain_noise_calibration(priv);
935 iwl_sensitivity_calibration(priv);
938 mutex_unlock(&priv->mutex);
941 void iwlagn_prepare_restart(struct iwl_priv *priv)
943 bool bt_full_concurrent;
950 lockdep_assert_held(&priv->mutex);
955 * __iwl_down() will clear the BT status variables,
956 * which is correct, but when we restart we really
957 * want to keep them so restore them afterwards.
959 * The restart process will later pick them up and
960 * re-configure the hw when we reconfigure the BT
963 bt_full_concurrent = priv->bt_full_concurrent;
964 bt_ci_compliance = priv->bt_ci_compliance;
965 bt_load = priv->bt_traffic_load;
966 bt_status = priv->bt_status;
967 bt_is_sco = priv->bt_is_sco;
971 priv->bt_full_concurrent = bt_full_concurrent;
972 priv->bt_ci_compliance = bt_ci_compliance;
973 priv->bt_traffic_load = bt_load;
974 priv->bt_status = bt_status;
975 priv->bt_is_sco = bt_is_sco;
977 /* reset aggregation queues */
978 for (i = IWLAGN_FIRST_AMPDU_QUEUE; i < IWL_MAX_HW_QUEUES; i++)
979 priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
980 /* and stop counts */
981 for (i = 0; i < IWL_MAX_HW_QUEUES; i++)
982 atomic_set(&priv->queue_stop_count[i], 0);
984 memset(priv->agg_q_alloc, 0, sizeof(priv->agg_q_alloc));
987 static void iwl_bg_restart(struct work_struct *data)
989 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
991 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
994 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
995 mutex_lock(&priv->mutex);
996 iwlagn_prepare_restart(priv);
997 mutex_unlock(&priv->mutex);
998 iwl_cancel_deferred_work(priv);
999 if (priv->mac80211_registered)
1000 ieee80211_restart_hw(priv->hw);
1003 "Cannot request restart before registrating with mac80211");
1012 void iwlagn_disable_roc(struct iwl_priv *priv)
1014 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
1016 lockdep_assert_held(&priv->mutex);
1018 if (!priv->hw_roc_setup)
1021 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
1022 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1024 priv->hw_roc_channel = NULL;
1026 memset(ctx->staging.node_addr, 0, ETH_ALEN);
1028 iwlagn_commit_rxon(priv, ctx);
1030 ctx->is_active = false;
1031 priv->hw_roc_setup = false;
1034 static void iwlagn_disable_roc_work(struct work_struct *work)
1036 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1037 hw_roc_disable_work.work);
1039 mutex_lock(&priv->mutex);
1040 iwlagn_disable_roc(priv);
1041 mutex_unlock(&priv->mutex);
1044 /*****************************************************************************
1046 * driver setup and teardown
1048 *****************************************************************************/
1050 static void iwl_setup_deferred_work(struct iwl_priv *priv)
1052 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
1054 INIT_WORK(&priv->restart, iwl_bg_restart);
1055 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
1056 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
1057 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
1058 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
1059 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
1060 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
1061 iwlagn_disable_roc_work);
1063 iwl_setup_scan_deferred_work(priv);
1065 if (priv->cfg->bt_params)
1066 iwlagn_bt_setup_deferred_work(priv);
1068 init_timer(&priv->statistics_periodic);
1069 priv->statistics_periodic.data = (unsigned long)priv;
1070 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
1072 init_timer(&priv->ucode_trace);
1073 priv->ucode_trace.data = (unsigned long)priv;
1074 priv->ucode_trace.function = iwl_bg_ucode_trace;
1077 void iwl_cancel_deferred_work(struct iwl_priv *priv)
1079 if (priv->cfg->bt_params)
1080 iwlagn_bt_cancel_deferred_work(priv);
1082 cancel_work_sync(&priv->run_time_calib_work);
1083 cancel_work_sync(&priv->beacon_update);
1085 iwl_cancel_scan_deferred_work(priv);
1087 cancel_work_sync(&priv->bt_full_concurrency);
1088 cancel_work_sync(&priv->bt_runtime_config);
1089 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1091 del_timer_sync(&priv->statistics_periodic);
1092 del_timer_sync(&priv->ucode_trace);
1095 static int iwl_init_drv(struct iwl_priv *priv)
1097 spin_lock_init(&priv->sta_lock);
1099 mutex_init(&priv->mutex);
1101 INIT_LIST_HEAD(&priv->calib_results);
1103 priv->band = IEEE80211_BAND_2GHZ;
1105 priv->plcp_delta_threshold =
1106 priv->cfg->base_params->plcp_delta_threshold;
1108 priv->iw_mode = NL80211_IFTYPE_STATION;
1109 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
1110 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
1111 priv->agg_tids_count = 0;
1113 priv->ucode_owner = IWL_OWNERSHIP_DRIVER;
1115 priv->rx_statistics_jiffies = jiffies;
1117 /* Choose which receivers/antennas to use */
1118 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1120 iwl_init_scan_params(priv);
1123 if (priv->cfg->bt_params &&
1124 priv->cfg->bt_params->advanced_bt_coexist) {
1125 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1126 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1127 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1128 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
1129 priv->bt_duration = BT_DURATION_LIMIT_DEF;
1130 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
1136 static void iwl_uninit_drv(struct iwl_priv *priv)
1138 kfree(priv->scan_cmd);
1139 kfree(priv->beacon_cmd);
1140 kfree(rcu_dereference_raw(priv->noa_data));
1141 iwl_calib_free_results(priv);
1142 #ifdef CONFIG_IWLWIFI_DEBUGFS
1143 kfree(priv->wowlan_sram);
1147 static void iwl_set_hw_params(struct iwl_priv *priv)
1149 if (priv->cfg->ht_params)
1150 priv->hw_params.use_rts_for_aggregation =
1151 priv->cfg->ht_params->use_rts_for_aggregation;
1153 /* Device-specific setup */
1154 priv->lib->set_hw_params(priv);
1159 /* show what optional capabilities we have */
1160 static void iwl_option_config(struct iwl_priv *priv)
1162 #ifdef CONFIG_IWLWIFI_DEBUG
1163 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG enabled\n");
1165 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG disabled\n");
1168 #ifdef CONFIG_IWLWIFI_DEBUGFS
1169 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS enabled\n");
1171 IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS disabled\n");
1174 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1175 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING enabled\n");
1177 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING disabled\n");
1180 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1181 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE enabled\n");
1183 IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE disabled\n");
1186 #ifdef CONFIG_IWLWIFI_P2P
1187 IWL_INFO(priv, "CONFIG_IWLWIFI_P2P enabled\n");
1189 IWL_INFO(priv, "CONFIG_IWLWIFI_P2P disabled\n");
1193 static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
1195 struct iwl_nvm_data *data = priv->nvm_data;
1198 if (data->sku_cap_11n_enable &&
1199 !priv->cfg->ht_params) {
1200 IWL_ERR(priv, "Invalid 11n configuration\n");
1204 if (!data->sku_cap_11n_enable && !data->sku_cap_band_24GHz_enable &&
1205 !data->sku_cap_band_52GHz_enable) {
1206 IWL_ERR(priv, "Invalid device sku\n");
1210 debug_msg = "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n";
1211 IWL_DEBUG_INFO(priv, debug_msg,
1212 data->sku_cap_band_24GHz_enable ? "" : "NOT", "enabled",
1213 data->sku_cap_band_52GHz_enable ? "" : "NOT", "enabled",
1214 data->sku_cap_11n_enable ? "" : "NOT", "enabled");
1216 priv->hw_params.tx_chains_num =
1217 num_of_ant(data->valid_tx_ant);
1218 if (priv->cfg->rx_with_siso_diversity)
1219 priv->hw_params.rx_chains_num = 1;
1221 priv->hw_params.rx_chains_num =
1222 num_of_ant(data->valid_rx_ant);
1224 IWL_DEBUG_INFO(priv, "Valid Tx ant: 0x%X, Valid Rx ant: 0x%X\n",
1226 data->valid_rx_ant);
1231 static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
1232 const struct iwl_cfg *cfg,
1233 const struct iwl_fw *fw,
1234 struct dentry *dbgfs_dir)
1236 struct iwl_priv *priv;
1237 struct ieee80211_hw *hw;
1238 struct iwl_op_mode *op_mode;
1241 struct iwl_trans_config trans_cfg = {};
1242 static const u8 no_reclaim_cmds[] = {
1245 REPLY_COMPRESSED_BA,
1246 STATISTICS_NOTIFICATION,
1251 /************************
1252 * 1. Allocating HW data
1253 ************************/
1254 hw = iwl_alloc_all();
1256 pr_err("%s: Cannot allocate network device\n", cfg->name);
1261 op_mode->ops = &iwl_dvm_ops;
1262 priv = IWL_OP_MODE_GET_DVM(op_mode);
1263 priv->trans = trans;
1264 priv->dev = trans->dev;
1268 switch (priv->cfg->device_family) {
1269 case IWL_DEVICE_FAMILY_1000:
1270 case IWL_DEVICE_FAMILY_100:
1271 priv->lib = &iwl1000_lib;
1273 case IWL_DEVICE_FAMILY_2000:
1274 case IWL_DEVICE_FAMILY_105:
1275 priv->lib = &iwl2000_lib;
1277 case IWL_DEVICE_FAMILY_2030:
1278 case IWL_DEVICE_FAMILY_135:
1279 priv->lib = &iwl2030_lib;
1281 case IWL_DEVICE_FAMILY_5000:
1282 priv->lib = &iwl5000_lib;
1284 case IWL_DEVICE_FAMILY_5150:
1285 priv->lib = &iwl5150_lib;
1287 case IWL_DEVICE_FAMILY_6000:
1288 case IWL_DEVICE_FAMILY_6005:
1289 case IWL_DEVICE_FAMILY_6000i:
1290 case IWL_DEVICE_FAMILY_6050:
1291 case IWL_DEVICE_FAMILY_6150:
1292 priv->lib = &iwl6000_lib;
1294 case IWL_DEVICE_FAMILY_6030:
1295 priv->lib = &iwl6030_lib;
1301 if (WARN_ON(!priv->lib))
1305 * Populate the state variables that the transport layer needs
1308 trans_cfg.op_mode = op_mode;
1309 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1310 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1311 trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
1312 if (!iwlwifi_mod_params.wd_disable)
1313 trans_cfg.queue_watchdog_timeout =
1314 priv->cfg->base_params->wd_timeout;
1316 trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
1317 trans_cfg.command_names = iwl_dvm_cmd_strings;
1318 trans_cfg.cmd_fifo = IWLAGN_CMD_FIFO_NUM;
1320 WARN_ON(sizeof(priv->transport_queue_stop) * BITS_PER_BYTE <
1321 priv->cfg->base_params->num_of_queues);
1323 ucode_flags = fw->ucode_capa.flags;
1325 #ifndef CONFIG_IWLWIFI_P2P
1326 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1329 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
1330 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1331 trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1333 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1334 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1337 /* Configure transport layer */
1338 iwl_trans_configure(priv->trans, &trans_cfg);
1340 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1341 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
1343 /* At this point both hw and priv are allocated. */
1345 SET_IEEE80211_DEV(priv->hw, priv->trans->dev);
1347 iwl_option_config(priv);
1349 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
1351 /* is antenna coupling more than 35dB ? */
1352 priv->bt_ant_couple_ok =
1353 (iwlwifi_mod_params.ant_coupling >
1354 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
1357 /* enable/disable bt channel inhibition */
1358 priv->bt_ch_announce = iwlwifi_mod_params.bt_ch_announce;
1359 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
1360 (priv->bt_ch_announce) ? "On" : "Off");
1362 /* these spin locks will be used in apm_ops.init and EEPROM access
1363 * we should init now
1365 spin_lock_init(&priv->statistics.lock);
1367 /***********************
1368 * 2. Read REV register
1369 ***********************/
1370 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
1371 priv->cfg->name, priv->trans->hw_rev);
1373 if (iwl_trans_start_hw(priv->trans))
1376 /* Read the EEPROM */
1377 if (iwl_read_eeprom(priv->trans, &priv->eeprom_blob,
1378 &priv->eeprom_blob_size)) {
1379 IWL_ERR(priv, "Unable to init EEPROM\n");
1383 /* Reset chip to save power until we load uCode during "up". */
1384 iwl_trans_stop_hw(priv->trans, false);
1386 priv->nvm_data = iwl_parse_eeprom_data(priv->trans->dev, priv->cfg,
1388 priv->eeprom_blob_size);
1389 if (!priv->nvm_data)
1390 goto out_free_eeprom_blob;
1392 if (iwl_nvm_check_version(priv->nvm_data, priv->trans))
1393 goto out_free_eeprom;
1395 if (iwl_eeprom_init_hw_params(priv))
1396 goto out_free_eeprom;
1398 /* extract MAC Address */
1399 memcpy(priv->addresses[0].addr, priv->nvm_data->hw_addr, ETH_ALEN);
1400 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
1401 priv->hw->wiphy->addresses = priv->addresses;
1402 priv->hw->wiphy->n_addresses = 1;
1403 num_mac = priv->nvm_data->n_hw_addrs;
1405 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
1407 priv->addresses[1].addr[5]++;
1408 priv->hw->wiphy->n_addresses++;
1411 /************************
1412 * 4. Setup HW constants
1413 ************************/
1414 iwl_set_hw_params(priv);
1416 if (!(priv->nvm_data->sku_cap_ipan_enable)) {
1417 IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN");
1418 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1420 * if not PAN, then don't support P2P -- might be a uCode
1421 * packaging bug or due to the eeprom check above
1423 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1424 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1425 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1427 /* Configure transport layer again*/
1428 iwl_trans_configure(priv->trans, &trans_cfg);
1431 /*******************
1433 *******************/
1434 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
1435 priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
1436 if (i < IWLAGN_FIRST_AMPDU_QUEUE &&
1437 i != IWL_DEFAULT_CMD_QUEUE_NUM &&
1438 i != IWL_IPAN_CMD_QUEUE_NUM)
1439 priv->queue_to_mac80211[i] = i;
1440 atomic_set(&priv->queue_stop_count[i], 0);
1443 if (iwl_init_drv(priv))
1444 goto out_free_eeprom;
1446 /* At this point both hw and priv are initialized. */
1448 /********************
1450 ********************/
1451 iwl_setup_deferred_work(priv);
1452 iwl_setup_rx_handlers(priv);
1453 iwl_testmode_init(priv);
1455 iwl_power_initialize(priv);
1456 iwl_tt_initialize(priv);
1458 snprintf(priv->hw->wiphy->fw_version,
1459 sizeof(priv->hw->wiphy->fw_version),
1460 "%s", fw->fw_version);
1462 priv->new_scan_threshold_behaviour =
1463 !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1465 priv->phy_calib_chain_noise_reset_cmd =
1466 fw->ucode_capa.standard_phy_calibration_size;
1467 priv->phy_calib_chain_noise_gain_cmd =
1468 fw->ucode_capa.standard_phy_calibration_size + 1;
1470 /* initialize all valid contexts */
1471 iwl_init_context(priv, ucode_flags);
1473 /**************************************************
1474 * This is still part of probe() in a sense...
1476 * 7. Setup and register with mac80211 and debugfs
1477 **************************************************/
1478 if (iwlagn_mac_setup_register(priv, &fw->ucode_capa))
1479 goto out_destroy_workqueue;
1481 if (iwl_dbgfs_register(priv, dbgfs_dir))
1482 goto out_mac80211_unregister;
1486 out_mac80211_unregister:
1487 iwlagn_mac_unregister(priv);
1488 out_destroy_workqueue:
1490 iwl_testmode_free(priv);
1491 iwl_cancel_deferred_work(priv);
1492 destroy_workqueue(priv->workqueue);
1493 priv->workqueue = NULL;
1494 iwl_uninit_drv(priv);
1495 out_free_eeprom_blob:
1496 kfree(priv->eeprom_blob);
1498 iwl_free_nvm_data(priv->nvm_data);
1500 ieee80211_free_hw(priv->hw);
1506 static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
1508 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1510 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
1512 iwl_testmode_free(priv);
1513 iwlagn_mac_unregister(priv);
1517 kfree(priv->eeprom_blob);
1518 iwl_free_nvm_data(priv->nvm_data);
1520 /*netif_stop_queue(dev); */
1521 flush_workqueue(priv->workqueue);
1523 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1524 * priv->workqueue... so we can't take down the workqueue
1526 destroy_workqueue(priv->workqueue);
1527 priv->workqueue = NULL;
1529 iwl_uninit_drv(priv);
1531 dev_kfree_skb(priv->beacon_skb);
1533 iwl_trans_stop_hw(priv->trans, true);
1534 ieee80211_free_hw(priv->hw);
1537 static const char * const desc_lookup_text[] = {
1542 "NMI_INTERRUPT_WDG",
1546 "HW_ERROR_TUNE_LOCK",
1547 "HW_ERROR_TEMPERATURE",
1548 "ILLEGAL_CHAN_FREQ",
1551 "NMI_INTERRUPT_HOST",
1552 "NMI_INTERRUPT_ACTION_PT",
1553 "NMI_INTERRUPT_UNKNOWN",
1554 "UCODE_VERSION_MISMATCH",
1555 "HW_ERROR_ABS_LOCK",
1556 "HW_ERROR_CAL_LOCK_FAIL",
1557 "NMI_INTERRUPT_INST_ACTION_PT",
1558 "NMI_INTERRUPT_DATA_ACTION_PT",
1560 "NMI_INTERRUPT_TRM",
1561 "NMI_INTERRUPT_BREAK_POINT",
1568 static struct { char *name; u8 num; } advanced_lookup[] = {
1569 { "NMI_INTERRUPT_WDG", 0x34 },
1570 { "SYSASSERT", 0x35 },
1571 { "UCODE_VERSION_MISMATCH", 0x37 },
1572 { "BAD_COMMAND", 0x38 },
1573 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1574 { "FATAL_ERROR", 0x3D },
1575 { "NMI_TRM_HW_ERR", 0x46 },
1576 { "NMI_INTERRUPT_TRM", 0x4C },
1577 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1578 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1579 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1580 { "NMI_INTERRUPT_HOST", 0x66 },
1581 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1582 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1583 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1584 { "ADVANCED_SYSASSERT", 0 },
1587 static const char *desc_lookup(u32 num)
1590 int max = ARRAY_SIZE(desc_lookup_text);
1593 return desc_lookup_text[num];
1595 max = ARRAY_SIZE(advanced_lookup) - 1;
1596 for (i = 0; i < max; i++) {
1597 if (advanced_lookup[i].num == num)
1600 return advanced_lookup[i].name;
1603 #define ERROR_START_OFFSET (1 * sizeof(u32))
1604 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1606 static void iwl_dump_nic_error_log(struct iwl_priv *priv)
1608 struct iwl_trans *trans = priv->trans;
1610 struct iwl_error_event_table table;
1612 base = priv->device_pointers.error_event_table;
1613 if (priv->cur_ucode == IWL_UCODE_INIT) {
1615 base = priv->fw->init_errlog_ptr;
1618 base = priv->fw->inst_errlog_ptr;
1621 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
1623 "Not valid error log pointer 0x%08X for %s uCode\n",
1625 (priv->cur_ucode == IWL_UCODE_INIT)
1630 /*TODO: Update dbgfs with ISR error stats obtained below */
1631 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
1633 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
1634 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
1635 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
1636 priv->status, table.valid);
1639 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
1640 table.data1, table.data2, table.line,
1641 table.blink1, table.blink2, table.ilink1,
1642 table.ilink2, table.bcon_time, table.gp1,
1643 table.gp2, table.gp3, table.ucode_ver,
1644 table.hw_ver, table.brd_ver);
1645 IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id,
1646 desc_lookup(table.error_id));
1647 IWL_ERR(priv, "0x%08X | uPc\n", table.pc);
1648 IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1);
1649 IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2);
1650 IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1);
1651 IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2);
1652 IWL_ERR(priv, "0x%08X | data1\n", table.data1);
1653 IWL_ERR(priv, "0x%08X | data2\n", table.data2);
1654 IWL_ERR(priv, "0x%08X | line\n", table.line);
1655 IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time);
1656 IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low);
1657 IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi);
1658 IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1);
1659 IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2);
1660 IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3);
1661 IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver);
1662 IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver);
1663 IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver);
1664 IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd);
1665 IWL_ERR(priv, "0x%08X | isr0\n", table.isr0);
1666 IWL_ERR(priv, "0x%08X | isr1\n", table.isr1);
1667 IWL_ERR(priv, "0x%08X | isr2\n", table.isr2);
1668 IWL_ERR(priv, "0x%08X | isr3\n", table.isr3);
1669 IWL_ERR(priv, "0x%08X | isr4\n", table.isr4);
1670 IWL_ERR(priv, "0x%08X | isr_pref\n", table.isr_pref);
1671 IWL_ERR(priv, "0x%08X | wait_event\n", table.wait_event);
1672 IWL_ERR(priv, "0x%08X | l2p_control\n", table.l2p_control);
1673 IWL_ERR(priv, "0x%08X | l2p_duration\n", table.l2p_duration);
1674 IWL_ERR(priv, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
1675 IWL_ERR(priv, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
1676 IWL_ERR(priv, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
1677 IWL_ERR(priv, "0x%08X | timestamp\n", table.u_timestamp);
1678 IWL_ERR(priv, "0x%08X | flow_handler\n", table.flow_handler);
1681 #define EVENT_START_OFFSET (4 * sizeof(u32))
1684 * iwl_print_event_log - Dump error event log to syslog
1687 static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
1688 u32 num_events, u32 mode,
1689 int pos, char **buf, size_t bufsz)
1692 u32 base; /* SRAM byte address of event log header */
1693 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
1694 u32 ptr; /* SRAM byte address of log data */
1695 u32 ev, time, data; /* event log data */
1696 unsigned long reg_flags;
1698 struct iwl_trans *trans = priv->trans;
1700 if (num_events == 0)
1703 base = priv->device_pointers.log_event_table;
1704 if (priv->cur_ucode == IWL_UCODE_INIT) {
1706 base = priv->fw->init_evtlog_ptr;
1709 base = priv->fw->inst_evtlog_ptr;
1713 event_size = 2 * sizeof(u32);
1715 event_size = 3 * sizeof(u32);
1717 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
1719 /* Make sure device is powered up for SRAM reads */
1720 if (!iwl_trans_grab_nic_access(trans, false, ®_flags))
1723 /* Set starting address; reads will auto-increment */
1724 iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr);
1726 /* "time" is actually "data" for mode 0 (no timestamp).
1727 * place event id # at far right for easier visual parsing. */
1728 for (i = 0; i < num_events; i++) {
1729 ev = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1730 time = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1734 pos += scnprintf(*buf + pos, bufsz - pos,
1735 "EVT_LOG:0x%08x:%04u\n",
1738 trace_iwlwifi_dev_ucode_event(trans->dev, 0,
1740 IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
1744 data = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1746 pos += scnprintf(*buf + pos, bufsz - pos,
1747 "EVT_LOGT:%010u:0x%08x:%04u\n",
1750 IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
1752 trace_iwlwifi_dev_ucode_event(trans->dev, time,
1758 /* Allow device to power down */
1759 iwl_trans_release_nic_access(trans, ®_flags);
1764 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1766 static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
1767 u32 num_wraps, u32 next_entry,
1769 int pos, char **buf, size_t bufsz)
1772 * display the newest DEFAULT_LOG_ENTRIES entries
1773 * i.e the entries just before the next ont that uCode would fill.
1776 if (next_entry < size) {
1777 pos = iwl_print_event_log(priv,
1778 capacity - (size - next_entry),
1779 size - next_entry, mode,
1781 pos = iwl_print_event_log(priv, 0,
1785 pos = iwl_print_event_log(priv, next_entry - size,
1786 size, mode, pos, buf, bufsz);
1788 if (next_entry < size) {
1789 pos = iwl_print_event_log(priv, 0, next_entry,
1790 mode, pos, buf, bufsz);
1792 pos = iwl_print_event_log(priv, next_entry - size,
1793 size, mode, pos, buf, bufsz);
1799 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1801 int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
1804 u32 base; /* SRAM byte address of event log header */
1805 u32 capacity; /* event log capacity in # entries */
1806 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
1807 u32 num_wraps; /* # times uCode wrapped to top of log */
1808 u32 next_entry; /* index of next entry to be written by uCode */
1809 u32 size; /* # entries that we'll print */
1813 struct iwl_trans *trans = priv->trans;
1815 base = priv->device_pointers.log_event_table;
1816 if (priv->cur_ucode == IWL_UCODE_INIT) {
1817 logsize = priv->fw->init_evtlog_size;
1819 base = priv->fw->init_evtlog_ptr;
1821 logsize = priv->fw->inst_evtlog_size;
1823 base = priv->fw->inst_evtlog_ptr;
1826 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
1828 "Invalid event log pointer 0x%08X for %s uCode\n",
1830 (priv->cur_ucode == IWL_UCODE_INIT)
1835 /* event log header */
1836 capacity = iwl_trans_read_mem32(trans, base);
1837 mode = iwl_trans_read_mem32(trans, base + (1 * sizeof(u32)));
1838 num_wraps = iwl_trans_read_mem32(trans, base + (2 * sizeof(u32)));
1839 next_entry = iwl_trans_read_mem32(trans, base + (3 * sizeof(u32)));
1841 if (capacity > logsize) {
1842 IWL_ERR(priv, "Log capacity %d is bogus, limit to %d "
1843 "entries\n", capacity, logsize);
1847 if (next_entry > logsize) {
1848 IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
1849 next_entry, logsize);
1850 next_entry = logsize;
1853 size = num_wraps ? capacity : next_entry;
1855 /* bail out if nothing in log */
1857 IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n");
1861 #ifdef CONFIG_IWLWIFI_DEBUG
1862 if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log)
1863 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
1864 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
1866 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
1867 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
1869 IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
1872 #ifdef CONFIG_IWLWIFI_DEBUG
1875 bufsz = capacity * 48;
1878 *buf = kmalloc(bufsz, GFP_KERNEL);
1882 if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) {
1884 * if uCode has wrapped back to top of log,
1885 * start at the oldest entry,
1886 * i.e the next one that uCode would fill.
1889 pos = iwl_print_event_log(priv, next_entry,
1890 capacity - next_entry, mode,
1892 /* (then/else) start at top of log */
1893 pos = iwl_print_event_log(priv, 0,
1894 next_entry, mode, pos, buf, bufsz);
1896 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
1897 next_entry, size, mode,
1900 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
1901 next_entry, size, mode,
1907 static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
1909 unsigned int reload_msec;
1910 unsigned long reload_jiffies;
1912 #ifdef CONFIG_IWLWIFI_DEBUG
1913 if (iwl_have_debug_level(IWL_DL_FW_ERRORS))
1914 iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS);
1917 /* uCode is no longer loaded. */
1918 priv->ucode_loaded = false;
1920 /* Set the FW error flag -- cleared on iwl_down */
1921 set_bit(STATUS_FW_ERROR, &priv->status);
1923 iwl_abort_notification_waits(&priv->notif_wait);
1925 /* Keep the restart process from trying to send host
1926 * commands by clearing the ready bit */
1927 clear_bit(STATUS_READY, &priv->status);
1931 * If firmware keep reloading, then it indicate something
1932 * serious wrong and firmware having problem to recover
1933 * from it. Instead of keep trying which will fill the syslog
1934 * and hang the system, let's just stop it
1936 reload_jiffies = jiffies;
1937 reload_msec = jiffies_to_msecs((long) reload_jiffies -
1938 (long) priv->reload_jiffies);
1939 priv->reload_jiffies = reload_jiffies;
1940 if (reload_msec <= IWL_MIN_RELOAD_DURATION) {
1941 priv->reload_count++;
1942 if (priv->reload_count >= IWL_MAX_CONTINUE_RELOAD_CNT) {
1943 IWL_ERR(priv, "BUG_ON, Stop restarting\n");
1947 priv->reload_count = 0;
1950 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1951 if (iwlwifi_mod_params.restart_fw) {
1952 IWL_DEBUG_FW_ERRORS(priv,
1953 "Restarting adapter due to uCode error.\n");
1954 queue_work(priv->workqueue, &priv->restart);
1956 IWL_DEBUG_FW_ERRORS(priv,
1957 "Detected FW error, but not restarting\n");
1961 static void iwl_nic_error(struct iwl_op_mode *op_mode)
1963 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1965 IWL_ERR(priv, "Loaded firmware version: %s\n",
1966 priv->fw->fw_version);
1968 iwl_dump_nic_error_log(priv);
1969 iwl_dump_nic_event_log(priv, false, NULL);
1971 iwlagn_fw_error(priv, false);
1974 static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode)
1976 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1978 if (!iwl_check_for_ct_kill(priv)) {
1979 IWL_ERR(priv, "Restarting adapter queue is full\n");
1980 iwlagn_fw_error(priv, false);
1984 #define EEPROM_RF_CONFIG_TYPE_MAX 0x3
1986 static void iwl_nic_config(struct iwl_op_mode *op_mode)
1988 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1991 iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG,
1992 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
1993 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP,
1994 (CSR_HW_REV_STEP(priv->trans->hw_rev) <<
1995 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP) |
1996 (CSR_HW_REV_DASH(priv->trans->hw_rev) <<
1997 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH));
1999 /* write radio config values to register */
2000 if (priv->nvm_data->radio_cfg_type <= EEPROM_RF_CONFIG_TYPE_MAX) {
2002 priv->nvm_data->radio_cfg_type <<
2003 CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE |
2004 priv->nvm_data->radio_cfg_step <<
2005 CSR_HW_IF_CONFIG_REG_POS_PHY_STEP |
2006 priv->nvm_data->radio_cfg_dash <<
2007 CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
2009 iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG,
2010 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
2011 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
2012 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH,
2015 IWL_INFO(priv, "Radio type=0x%x-0x%x-0x%x\n",
2016 priv->nvm_data->radio_cfg_type,
2017 priv->nvm_data->radio_cfg_step,
2018 priv->nvm_data->radio_cfg_dash);
2023 /* set CSR_HW_CONFIG_REG for uCode use */
2024 iwl_set_bit(priv->trans, CSR_HW_IF_CONFIG_REG,
2025 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
2026 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
2028 /* W/A : NIC is stuck in a reset state after Early PCIe power off
2029 * (PCIe power is lost before PERST# is asserted),
2030 * causing ME FW to lose ownership and not being able to obtain it back.
2032 iwl_set_bits_mask_prph(priv->trans, APMG_PS_CTRL_REG,
2033 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
2034 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
2036 if (priv->lib->nic_config)
2037 priv->lib->nic_config(priv);
2040 static void iwl_wimax_active(struct iwl_op_mode *op_mode)
2042 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2044 clear_bit(STATUS_READY, &priv->status);
2045 IWL_ERR(priv, "RF is used by WiMAX\n");
2048 static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
2050 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2051 int mq = priv->queue_to_mac80211[queue];
2053 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
2056 if (atomic_inc_return(&priv->queue_stop_count[mq]) > 1) {
2057 IWL_DEBUG_TX_QUEUES(priv,
2058 "queue %d (mac80211 %d) already stopped\n",
2063 set_bit(mq, &priv->transport_queue_stop);
2064 ieee80211_stop_queue(priv->hw, mq);
2067 static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
2069 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2070 int mq = priv->queue_to_mac80211[queue];
2072 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
2075 if (atomic_dec_return(&priv->queue_stop_count[mq]) > 0) {
2076 IWL_DEBUG_TX_QUEUES(priv,
2077 "queue %d (mac80211 %d) already awake\n",
2082 clear_bit(mq, &priv->transport_queue_stop);
2084 if (!priv->passive_no_rx)
2085 ieee80211_wake_queue(priv->hw, mq);
2088 void iwlagn_lift_passive_no_rx(struct iwl_priv *priv)
2092 if (!priv->passive_no_rx)
2095 for (mq = 0; mq < IWLAGN_FIRST_AMPDU_QUEUE; mq++) {
2096 if (!test_bit(mq, &priv->transport_queue_stop)) {
2097 IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d", mq);
2098 ieee80211_wake_queue(priv->hw, mq);
2100 IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d", mq);
2104 priv->passive_no_rx = false;
2107 static void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
2109 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2110 struct ieee80211_tx_info *info;
2112 info = IEEE80211_SKB_CB(skb);
2113 iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]);
2114 ieee80211_free_txskb(priv->hw, skb);
2117 static void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
2119 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2122 set_bit(STATUS_RF_KILL_HW, &priv->status);
2124 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2126 wiphy_rfkill_set_hw_state(priv->hw->wiphy, state);
2129 static const struct iwl_op_mode_ops iwl_dvm_ops = {
2130 .start = iwl_op_mode_dvm_start,
2131 .stop = iwl_op_mode_dvm_stop,
2132 .rx = iwl_rx_dispatch,
2133 .queue_full = iwl_stop_sw_queue,
2134 .queue_not_full = iwl_wake_sw_queue,
2135 .hw_rf_kill = iwl_set_hw_rfkill_state,
2136 .free_skb = iwl_free_skb,
2137 .nic_error = iwl_nic_error,
2138 .cmd_queue_full = iwl_cmd_queue_full,
2139 .nic_config = iwl_nic_config,
2140 .wimax_active = iwl_wimax_active,
2143 /*****************************************************************************
2145 * driver and module entry point
2147 *****************************************************************************/
2148 static int __init iwl_init(void)
2153 ret = iwlagn_rate_control_register();
2155 pr_err("Unable to register rate control algorithm: %d\n", ret);
2159 ret = iwl_opmode_register("iwldvm", &iwl_dvm_ops);
2161 pr_err("Unable to register op_mode: %d\n", ret);
2162 iwlagn_rate_control_unregister();
2167 module_init(iwl_init);
2169 static void __exit iwl_exit(void)
2171 iwl_opmode_deregister("iwldvm");
2172 iwlagn_rate_control_unregister();
2174 module_exit(iwl_exit);