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.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <net/mac80211.h>
67 #include "iwl-trans.h"
68 #include "iwl-op-mode.h"
70 #include "iwl-debug.h"
71 #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
72 #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
73 #include "iwl-eeprom-parse.h"
76 #include "iwl-phy-db.h"
78 #define MVM_UCODE_ALIVE_TIMEOUT HZ
79 #define MVM_UCODE_CALIB_TIMEOUT (2*HZ)
81 #define UCODE_VALID_OK cpu_to_le32(0x1)
83 struct iwl_mvm_alive_data {
88 static inline const struct fw_img *
89 iwl_get_ucode_image(struct iwl_mvm *mvm, enum iwl_ucode_type ucode_type)
91 if (ucode_type >= IWL_UCODE_TYPE_MAX)
94 return &mvm->fw->img[ucode_type];
97 static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
99 struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
100 .valid = cpu_to_le32(valid_tx_ant),
103 IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant);
104 return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, 0,
105 sizeof(tx_ant_cmd), &tx_ant_cmd);
108 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
109 struct iwl_rx_packet *pkt, void *data)
111 struct iwl_mvm *mvm =
112 container_of(notif_wait, struct iwl_mvm, notif_wait);
113 struct iwl_mvm_alive_data *alive_data = data;
114 struct mvm_alive_resp *palive;
115 struct mvm_alive_resp_ver2 *palive2;
117 if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
118 palive = (void *)pkt->data;
120 mvm->support_umac_log = false;
121 mvm->error_event_table =
122 le32_to_cpu(palive->error_event_table_ptr);
123 mvm->log_event_table = le32_to_cpu(palive->log_event_table_ptr);
124 alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr);
126 alive_data->valid = le16_to_cpu(palive->status) ==
129 "Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
130 le16_to_cpu(palive->status), palive->ver_type,
131 palive->ver_subtype, palive->flags);
133 palive2 = (void *)pkt->data;
135 mvm->error_event_table =
136 le32_to_cpu(palive2->error_event_table_ptr);
137 mvm->log_event_table =
138 le32_to_cpu(palive2->log_event_table_ptr);
139 alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr);
140 mvm->umac_error_event_table =
141 le32_to_cpu(palive2->error_info_addr);
142 mvm->sf_space.addr = le32_to_cpu(palive2->st_fwrd_addr);
143 mvm->sf_space.size = le32_to_cpu(palive2->st_fwrd_size);
145 alive_data->valid = le16_to_cpu(palive2->status) ==
147 if (mvm->umac_error_event_table)
148 mvm->support_umac_log = true;
151 "Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
152 le16_to_cpu(palive2->status), palive2->ver_type,
153 palive2->ver_subtype, palive2->flags);
156 "UMAC version: Major - 0x%x, Minor - 0x%x\n",
157 palive2->umac_major, palive2->umac_minor);
163 static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
164 struct iwl_rx_packet *pkt, void *data)
166 struct iwl_phy_db *phy_db = data;
168 if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
169 WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
173 WARN_ON(iwl_phy_db_set_section(phy_db, pkt, GFP_ATOMIC));
178 static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
179 enum iwl_ucode_type ucode_type)
181 struct iwl_notification_wait alive_wait;
182 struct iwl_mvm_alive_data alive_data;
183 const struct fw_img *fw;
185 enum iwl_ucode_type old_type = mvm->cur_ucode;
186 static const u8 alive_cmd[] = { MVM_ALIVE };
187 struct iwl_sf_region st_fwrd_space;
189 fw = iwl_get_ucode_image(mvm, ucode_type);
192 mvm->cur_ucode = ucode_type;
193 mvm->ucode_loaded = false;
195 iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
196 alive_cmd, ARRAY_SIZE(alive_cmd),
197 iwl_alive_fn, &alive_data);
199 ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
201 mvm->cur_ucode = old_type;
202 iwl_remove_notification(&mvm->notif_wait, &alive_wait);
207 * Some things may run in the background now, but we
208 * just wait for the ALIVE notification here.
210 ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
211 MVM_UCODE_ALIVE_TIMEOUT);
213 mvm->cur_ucode = old_type;
217 if (!alive_data.valid) {
218 IWL_ERR(mvm, "Loaded ucode is not valid!\n");
219 mvm->cur_ucode = old_type;
224 * update the sdio allocation according to the pointer we get in the
225 * alive notification.
227 st_fwrd_space.addr = mvm->sf_space.addr;
228 st_fwrd_space.size = mvm->sf_space.size;
229 ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space);
231 iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);
234 * Note: all the queues are enabled as part of the interface
235 * initialization, but in firmware restart scenarios they
236 * could be stopped, so wake them up. In firmware restart,
237 * mac80211 will have the queues stopped as well until the
238 * reconfiguration completes. During normal startup, they
242 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
243 if (i < mvm->first_agg_queue && i != IWL_MVM_CMD_QUEUE)
244 mvm->queue_to_mac80211[i] = i;
246 mvm->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
249 for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
250 atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
252 mvm->ucode_loaded = true;
257 static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
259 struct iwl_phy_cfg_cmd phy_cfg_cmd;
260 enum iwl_ucode_type ucode_type = mvm->cur_ucode;
263 phy_cfg_cmd.phy_cfg = cpu_to_le32(mvm->fw->phy_config);
264 phy_cfg_cmd.calib_control.event_trigger =
265 mvm->fw->default_calib[ucode_type].event_trigger;
266 phy_cfg_cmd.calib_control.flow_trigger =
267 mvm->fw->default_calib[ucode_type].flow_trigger;
269 IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
270 phy_cfg_cmd.phy_cfg);
272 return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0,
273 sizeof(phy_cfg_cmd), &phy_cfg_cmd);
276 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
278 struct iwl_notification_wait calib_wait;
279 static const u8 init_complete[] = {
281 CALIB_RES_NOTIF_PHY_DB
285 lockdep_assert_held(&mvm->mutex);
287 if (WARN_ON_ONCE(mvm->init_ucode_complete))
290 iwl_init_notification_wait(&mvm->notif_wait,
293 ARRAY_SIZE(init_complete),
294 iwl_wait_phy_db_entry,
297 /* Will also start the device */
298 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
300 IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
304 ret = iwl_send_bt_init_conf(mvm);
308 /* Read the NVM only at driver load time, no need to do this twice */
311 ret = iwl_nvm_init(mvm, true);
313 IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
318 /* In case we read the NVM from external file, load it to the NIC */
319 if (mvm->nvm_file_name)
320 iwl_mvm_load_nvm_to_nic(mvm);
322 ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
326 * abort after reading the nvm in case RF Kill is on, we will complete
327 * the init seq later when RF kill will switch to off
329 if (iwl_mvm_is_radio_killed(mvm)) {
330 IWL_DEBUG_RF_KILL(mvm,
331 "jump over all phy activities due to RF kill\n");
332 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
337 /* Send TX valid antennas before triggering calibrations */
338 ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
343 * Send phy configurations command to init uCode
344 * to start the 16.0 uCode init image internal calibrations.
346 ret = iwl_send_phy_cfg_cmd(mvm);
348 IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
354 * Some things may run in the background now, but we
355 * just wait for the calibration complete notification.
357 ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
358 MVM_UCODE_CALIB_TIMEOUT);
360 mvm->init_ucode_complete = true;
364 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
366 if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
367 /* we want to debug INIT and we have no NVM - fake */
368 mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
369 sizeof(struct ieee80211_channel) +
370 sizeof(struct ieee80211_rate),
374 mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
375 mvm->nvm_data->bands[0].n_channels = 1;
376 mvm->nvm_data->bands[0].n_bitrates = 1;
377 mvm->nvm_data->bands[0].bitrates =
378 (void *)mvm->nvm_data->channels + 1;
379 mvm->nvm_data->bands[0].bitrates->hw_value = 10;
385 int iwl_mvm_up(struct iwl_mvm *mvm)
388 struct ieee80211_channel *chan;
389 struct cfg80211_chan_def chandef;
391 lockdep_assert_held(&mvm->mutex);
393 ret = iwl_trans_start_hw(mvm->trans);
398 * If we haven't completed the run of the init ucode during
399 * module loading, load init ucode now
400 * (for example, if we were in RFKILL)
402 if (!mvm->init_ucode_complete) {
403 ret = iwl_run_init_mvm_ucode(mvm, false);
404 if (ret && !iwlmvm_mod_params.init_dbg) {
405 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
406 /* this can't happen */
407 if (WARN_ON(ret > 0))
411 if (!iwlmvm_mod_params.init_dbg) {
413 * should stop and start HW since that INIT
416 iwl_trans_stop_device(mvm->trans);
417 ret = iwl_trans_start_hw(mvm->trans);
423 if (iwlmvm_mod_params.init_dbg)
426 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
428 IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
432 ret = iwl_mvm_sf_update(mvm, NULL, false);
434 IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");
436 ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
440 ret = iwl_send_bt_init_conf(mvm);
444 /* Send phy db control command and then phy db calibration*/
445 ret = iwl_send_phy_db_data(mvm->phy_db);
449 ret = iwl_send_phy_cfg_cmd(mvm);
453 /* init the fw <-> mac80211 STA mapping */
454 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
455 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
457 /* reset quota debouncing buffer - 0xff will yield invalid data */
458 memset(&mvm->last_quota_cmd, 0xff, sizeof(mvm->last_quota_cmd));
460 /* Add auxiliary station for scanning */
461 ret = iwl_mvm_add_aux_sta(mvm);
465 /* Add all the PHY contexts */
466 chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
467 cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
468 for (i = 0; i < NUM_PHY_CTX; i++) {
470 * The channel used here isn't relevant as it's
471 * going to be overwritten in the other flows.
472 * For now use the first channel we have.
474 ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
480 /* Initialize tx backoffs to the minimal possible */
481 iwl_mvm_tt_tx_backoff(mvm, 0);
483 if (mvm->trans->ltr_enabled) {
484 struct iwl_ltr_config_cmd cmd = {
485 .flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
488 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
492 ret = iwl_mvm_power_update_device(mvm);
496 /* allow FW/transport low power modes if not during restart */
497 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
498 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
500 IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
503 iwl_trans_stop_device(mvm->trans);
507 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
511 lockdep_assert_held(&mvm->mutex);
513 ret = iwl_trans_start_hw(mvm->trans);
517 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN);
519 IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret);
523 ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
527 /* Send phy db control command and then phy db calibration*/
528 ret = iwl_send_phy_db_data(mvm->phy_db);
532 ret = iwl_send_phy_cfg_cmd(mvm);
536 /* init the fw <-> mac80211 STA mapping */
537 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
538 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
540 /* Add auxiliary station for scanning */
541 ret = iwl_mvm_add_aux_sta(mvm);
547 iwl_trans_stop_device(mvm->trans);
551 int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
552 struct iwl_rx_cmd_buffer *rxb,
553 struct iwl_device_cmd *cmd)
555 struct iwl_rx_packet *pkt = rxb_addr(rxb);
556 struct iwl_card_state_notif *card_state_notif = (void *)pkt->data;
557 u32 flags = le32_to_cpu(card_state_notif->flags);
559 IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n",
560 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
561 (flags & SW_CARD_DISABLED) ? "Kill" : "On",
562 (flags & CT_KILL_CARD_DISABLED) ?
563 "Reached" : "Not reached");
568 int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
569 struct iwl_device_cmd *cmd)
571 struct iwl_rx_packet *pkt = rxb_addr(rxb);
572 struct iwl_radio_version_notif *radio_version = (void *)pkt->data;
574 /* TODO: what to do with that? */
576 "Radio version: flavor: 0x%08x, step 0x%08x, dash 0x%08x\n",
577 le32_to_cpu(radio_version->radio_flavor),
578 le32_to_cpu(radio_version->radio_step),
579 le32_to_cpu(radio_version->radio_dash));