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_prio_tbl(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_prio_tbl(mvm
);
431 ret
= iwl_send_bt_init_conf(mvm
);
435 /* Send phy db control command and then phy db calibration*/
436 ret
= iwl_send_phy_db_data(mvm
->phy_db
);
440 ret
= iwl_send_phy_cfg_cmd(mvm
);
444 /* init the fw <-> mac80211 STA mapping */
445 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++)
446 RCU_INIT_POINTER(mvm
->fw_id_to_mac_id
[i
], NULL
);
448 /* Add auxiliary station for scanning */
449 ret
= iwl_mvm_add_aux_sta(mvm
);
453 /* Add all the PHY contexts */
454 chan
= &mvm
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
]->channels
[0];
455 cfg80211_chandef_create(&chandef
, chan
, NL80211_CHAN_NO_HT
);
456 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
458 * The channel used here isn't relevant as it's
459 * going to be overwritten in the other flows.
460 * For now use the first channel we have.
462 ret
= iwl_mvm_phy_ctxt_add(mvm
, &mvm
->phy_ctxts
[i
],
468 /* Initialize tx backoffs to the minimal possible */
469 iwl_mvm_tt_tx_backoff(mvm
, 0);
471 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT
)) {
472 ret
= iwl_power_legacy_set_cam_mode(mvm
);
477 ret
= iwl_mvm_power_update_device(mvm
);
481 /* allow FW/transport low power modes if not during restart */
482 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
483 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
485 IWL_DEBUG_INFO(mvm
, "RT uCode started.\n");
488 iwl_trans_stop_device(mvm
->trans
);
492 int iwl_mvm_load_d3_fw(struct iwl_mvm
*mvm
)
496 lockdep_assert_held(&mvm
->mutex
);
498 ret
= iwl_trans_start_hw(mvm
->trans
);
502 ret
= iwl_mvm_load_ucode_wait_alive(mvm
, IWL_UCODE_WOWLAN
);
504 IWL_ERR(mvm
, "Failed to start WoWLAN firmware: %d\n", ret
);
508 ret
= iwl_send_tx_ant_cfg(mvm
, mvm
->fw
->valid_tx_ant
);
512 /* Send phy db control command and then phy db calibration*/
513 ret
= iwl_send_phy_db_data(mvm
->phy_db
);
517 ret
= iwl_send_phy_cfg_cmd(mvm
);
521 /* init the fw <-> mac80211 STA mapping */
522 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++)
523 RCU_INIT_POINTER(mvm
->fw_id_to_mac_id
[i
], NULL
);
525 /* Add auxiliary station for scanning */
526 ret
= iwl_mvm_add_aux_sta(mvm
);
532 iwl_trans_stop_device(mvm
->trans
);
536 int iwl_mvm_rx_card_state_notif(struct iwl_mvm
*mvm
,
537 struct iwl_rx_cmd_buffer
*rxb
,
538 struct iwl_device_cmd
*cmd
)
540 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
541 struct iwl_card_state_notif
*card_state_notif
= (void *)pkt
->data
;
542 u32 flags
= le32_to_cpu(card_state_notif
->flags
);
544 IWL_DEBUG_RF_KILL(mvm
, "Card state received: HW:%s SW:%s CT:%s\n",
545 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
546 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On",
547 (flags
& CT_KILL_CARD_DISABLED
) ?
548 "Reached" : "Not reached");
553 int iwl_mvm_rx_radio_ver(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
554 struct iwl_device_cmd
*cmd
)
556 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
557 struct iwl_radio_version_notif
*radio_version
= (void *)pkt
->data
;
559 /* TODO: what to do with that? */
561 "Radio version: flavor: 0x%08x, step 0x%08x, dash 0x%08x\n",
562 le32_to_cpu(radio_version
->radio_flavor
),
563 le32_to_cpu(radio_version
->radio_step
),
564 le32_to_cpu(radio_version
->radio_dash
));