1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <net/mac80211.h>
65 #include "iwl-trans.h"
66 #include "iwl-op-mode.h"
68 #include "iwl-debug.h"
69 #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
70 #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
71 #include "iwl-eeprom-parse.h"
74 #include "iwl-phy-db.h"
76 #define MVM_UCODE_ALIVE_TIMEOUT HZ
77 #define MVM_UCODE_CALIB_TIMEOUT (2*HZ)
79 #define UCODE_VALID_OK cpu_to_le32(0x1)
81 struct iwl_mvm_alive_data {
86 static inline const struct fw_img *
87 iwl_get_ucode_image(struct iwl_mvm *mvm, enum iwl_ucode_type ucode_type)
89 if (ucode_type >= IWL_UCODE_TYPE_MAX)
92 return &mvm->fw->img[ucode_type];
95 static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
97 struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
98 .valid = cpu_to_le32(valid_tx_ant),
101 IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant);
102 return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, CMD_SYNC,
103 sizeof(tx_ant_cmd), &tx_ant_cmd);
106 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
107 struct iwl_rx_packet *pkt, void *data)
109 struct iwl_mvm *mvm =
110 container_of(notif_wait, struct iwl_mvm, notif_wait);
111 struct iwl_mvm_alive_data *alive_data = data;
112 struct mvm_alive_resp *palive;
113 struct mvm_alive_resp_ver2 *palive2;
115 if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
116 palive = (void *)pkt->data;
118 mvm->support_umac_log = false;
119 mvm->error_event_table =
120 le32_to_cpu(palive->error_event_table_ptr);
121 mvm->log_event_table = le32_to_cpu(palive->log_event_table_ptr);
122 alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr);
124 alive_data->valid = le16_to_cpu(palive->status) ==
127 "Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
128 le16_to_cpu(palive->status), palive->ver_type,
129 palive->ver_subtype, palive->flags);
131 palive2 = (void *)pkt->data;
133 mvm->error_event_table =
134 le32_to_cpu(palive2->error_event_table_ptr);
135 mvm->log_event_table =
136 le32_to_cpu(palive2->log_event_table_ptr);
137 alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr);
138 mvm->umac_error_event_table =
139 le32_to_cpu(palive2->error_info_addr);
141 alive_data->valid = le16_to_cpu(palive2->status) ==
143 if (mvm->umac_error_event_table)
144 mvm->support_umac_log = true;
147 "Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
148 le16_to_cpu(palive2->status), palive2->ver_type,
149 palive2->ver_subtype, palive2->flags);
152 "UMAC version: Major - 0x%x, Minor - 0x%x\n",
153 palive2->umac_major, palive2->umac_minor);
159 static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
160 struct iwl_rx_packet *pkt, void *data)
162 struct iwl_phy_db *phy_db = data;
164 if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
165 WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
169 WARN_ON(iwl_phy_db_set_section(phy_db, pkt, GFP_ATOMIC));
174 static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
175 enum iwl_ucode_type ucode_type)
177 struct iwl_notification_wait alive_wait;
178 struct iwl_mvm_alive_data alive_data;
179 const struct fw_img *fw;
181 enum iwl_ucode_type old_type = mvm->cur_ucode;
182 static const u8 alive_cmd[] = { MVM_ALIVE };
184 fw = iwl_get_ucode_image(mvm, ucode_type);
187 mvm->cur_ucode = ucode_type;
188 mvm->ucode_loaded = false;
190 iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
191 alive_cmd, ARRAY_SIZE(alive_cmd),
192 iwl_alive_fn, &alive_data);
194 ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
196 mvm->cur_ucode = old_type;
197 iwl_remove_notification(&mvm->notif_wait, &alive_wait);
202 * Some things may run in the background now, but we
203 * just wait for the ALIVE notification here.
205 ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
206 MVM_UCODE_ALIVE_TIMEOUT);
208 mvm->cur_ucode = old_type;
212 if (!alive_data.valid) {
213 IWL_ERR(mvm, "Loaded ucode is not valid!\n");
214 mvm->cur_ucode = old_type;
218 iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);
221 * Note: all the queues are enabled as part of the interface
222 * initialization, but in firmware restart scenarios they
223 * could be stopped, so wake them up. In firmware restart,
224 * mac80211 will have the queues stopped as well until the
225 * reconfiguration completes. During normal startup, they
229 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
230 if (i < mvm->first_agg_queue && i != IWL_MVM_CMD_QUEUE)
231 mvm->queue_to_mac80211[i] = i;
233 mvm->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
234 atomic_set(&mvm->queue_stop_count[i], 0);
237 mvm->transport_queue_stop = 0;
239 mvm->ucode_loaded = true;
244 static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
246 struct iwl_phy_cfg_cmd phy_cfg_cmd;
247 enum iwl_ucode_type ucode_type = mvm->cur_ucode;
250 phy_cfg_cmd.phy_cfg = cpu_to_le32(mvm->fw->phy_config);
251 phy_cfg_cmd.calib_control.event_trigger =
252 mvm->fw->default_calib[ucode_type].event_trigger;
253 phy_cfg_cmd.calib_control.flow_trigger =
254 mvm->fw->default_calib[ucode_type].flow_trigger;
256 IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
257 phy_cfg_cmd.phy_cfg);
259 return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, CMD_SYNC,
260 sizeof(phy_cfg_cmd), &phy_cfg_cmd);
263 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
265 struct iwl_notification_wait calib_wait;
266 static const u8 init_complete[] = {
268 CALIB_RES_NOTIF_PHY_DB
272 lockdep_assert_held(&mvm->mutex);
274 if (WARN_ON_ONCE(mvm->init_ucode_complete))
277 iwl_init_notification_wait(&mvm->notif_wait,
280 ARRAY_SIZE(init_complete),
281 iwl_wait_phy_db_entry,
284 /* Will also start the device */
285 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
287 IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
291 ret = iwl_send_bt_init_conf(mvm);
295 /* Read the NVM only at driver load time, no need to do this twice */
298 ret = iwl_nvm_init(mvm);
300 IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
305 /* In case we read the NVM from external file, load it to the NIC */
306 if (iwlwifi_mod_params.nvm_file)
307 iwl_mvm_load_nvm_to_nic(mvm);
309 ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
313 * abort after reading the nvm in case RF Kill is on, we will complete
314 * the init seq later when RF kill will switch to off
316 if (iwl_mvm_is_radio_killed(mvm)) {
317 IWL_DEBUG_RF_KILL(mvm,
318 "jump over all phy activities due to RF kill\n");
319 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
324 /* Send TX valid antennas before triggering calibrations */
325 ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
330 * Send phy configurations command to init uCode
331 * to start the 16.0 uCode init image internal calibrations.
333 ret = iwl_send_phy_cfg_cmd(mvm);
335 IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
341 * Some things may run in the background now, but we
342 * just wait for the calibration complete notification.
344 ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
345 MVM_UCODE_CALIB_TIMEOUT);
347 mvm->init_ucode_complete = true;
351 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
353 if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
354 /* we want to debug INIT and we have no NVM - fake */
355 mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
356 sizeof(struct ieee80211_channel) +
357 sizeof(struct ieee80211_rate),
361 mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
362 mvm->nvm_data->bands[0].n_channels = 1;
363 mvm->nvm_data->bands[0].n_bitrates = 1;
364 mvm->nvm_data->bands[0].bitrates =
365 (void *)mvm->nvm_data->channels + 1;
366 mvm->nvm_data->bands[0].bitrates->hw_value = 10;
372 int iwl_mvm_up(struct iwl_mvm *mvm)
375 struct ieee80211_channel *chan;
376 struct cfg80211_chan_def chandef;
378 lockdep_assert_held(&mvm->mutex);
380 ret = iwl_trans_start_hw(mvm->trans);
385 * If we haven't completed the run of the init ucode during
386 * module loading, load init ucode now
387 * (for example, if we were in RFKILL)
389 if (!mvm->init_ucode_complete) {
390 ret = iwl_run_init_mvm_ucode(mvm, false);
391 if (ret && !iwlmvm_mod_params.init_dbg) {
392 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
393 /* this can't happen */
394 if (WARN_ON(ret > 0))
398 if (!iwlmvm_mod_params.init_dbg) {
400 * should stop and start HW since that INIT
403 iwl_trans_stop_device(mvm->trans);
404 ret = iwl_trans_start_hw(mvm->trans);
410 if (iwlmvm_mod_params.init_dbg)
413 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
415 IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
419 ret = iwl_mvm_sf_update(mvm, NULL, false);
421 IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");
423 ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
427 ret = iwl_send_bt_init_conf(mvm);
431 /* Send phy db control command and then phy db calibration*/
432 ret = iwl_send_phy_db_data(mvm->phy_db);
436 ret = iwl_send_phy_cfg_cmd(mvm);
440 /* init the fw <-> mac80211 STA mapping */
441 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
442 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
444 /* Add auxiliary station for scanning */
445 ret = iwl_mvm_add_aux_sta(mvm);
449 /* Add all the PHY contexts */
450 chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
451 cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
452 for (i = 0; i < NUM_PHY_CTX; i++) {
454 * The channel used here isn't relevant as it's
455 * going to be overwritten in the other flows.
456 * For now use the first channel we have.
458 ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
464 /* Initialize tx backoffs to the minimal possible */
465 iwl_mvm_tt_tx_backoff(mvm, 0);
467 ret = iwl_mvm_power_update_device(mvm);
471 /* allow FW/transport low power modes if not during restart */
472 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
473 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
475 IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
478 iwl_trans_stop_device(mvm->trans);
482 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
486 lockdep_assert_held(&mvm->mutex);
488 ret = iwl_trans_start_hw(mvm->trans);
492 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN);
494 IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret);
498 ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
502 /* Send phy db control command and then phy db calibration*/
503 ret = iwl_send_phy_db_data(mvm->phy_db);
507 ret = iwl_send_phy_cfg_cmd(mvm);
511 /* init the fw <-> mac80211 STA mapping */
512 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
513 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
515 /* Add auxiliary station for scanning */
516 ret = iwl_mvm_add_aux_sta(mvm);
522 iwl_trans_stop_device(mvm->trans);
526 int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
527 struct iwl_rx_cmd_buffer *rxb,
528 struct iwl_device_cmd *cmd)
530 struct iwl_rx_packet *pkt = rxb_addr(rxb);
531 struct iwl_card_state_notif *card_state_notif = (void *)pkt->data;
532 u32 flags = le32_to_cpu(card_state_notif->flags);
534 IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n",
535 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
536 (flags & SW_CARD_DISABLED) ? "Kill" : "On",
537 (flags & CT_KILL_CARD_DISABLED) ?
538 "Reached" : "Not reached");
543 int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
544 struct iwl_device_cmd *cmd)
546 struct iwl_rx_packet *pkt = rxb_addr(rxb);
547 struct iwl_radio_version_notif *radio_version = (void *)pkt->data;
549 /* TODO: what to do with that? */
551 "Radio version: flavor: 0x%08x, step 0x%08x, dash 0x%08x\n",
552 le32_to_cpu(radio_version->radio_flavor),
553 le32_to_cpu(radio_version->radio_step),
554 le32_to_cpu(radio_version->radio_dash));