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 ret
= iwl_mvm_power_update_device(mvm
);
487 /* allow FW/transport low power modes if not during restart */
488 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
489 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
491 IWL_DEBUG_INFO(mvm
, "RT uCode started.\n");
494 iwl_trans_stop_device(mvm
->trans
);
498 int iwl_mvm_load_d3_fw(struct iwl_mvm
*mvm
)
502 lockdep_assert_held(&mvm
->mutex
);
504 ret
= iwl_trans_start_hw(mvm
->trans
);
508 ret
= iwl_mvm_load_ucode_wait_alive(mvm
, IWL_UCODE_WOWLAN
);
510 IWL_ERR(mvm
, "Failed to start WoWLAN firmware: %d\n", ret
);
514 ret
= iwl_send_tx_ant_cfg(mvm
, mvm
->fw
->valid_tx_ant
);
518 /* Send phy db control command and then phy db calibration*/
519 ret
= iwl_send_phy_db_data(mvm
->phy_db
);
523 ret
= iwl_send_phy_cfg_cmd(mvm
);
527 /* init the fw <-> mac80211 STA mapping */
528 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++)
529 RCU_INIT_POINTER(mvm
->fw_id_to_mac_id
[i
], NULL
);
531 /* Add auxiliary station for scanning */
532 ret
= iwl_mvm_add_aux_sta(mvm
);
538 iwl_trans_stop_device(mvm
->trans
);
542 int iwl_mvm_rx_card_state_notif(struct iwl_mvm
*mvm
,
543 struct iwl_rx_cmd_buffer
*rxb
,
544 struct iwl_device_cmd
*cmd
)
546 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
547 struct iwl_card_state_notif
*card_state_notif
= (void *)pkt
->data
;
548 u32 flags
= le32_to_cpu(card_state_notif
->flags
);
550 IWL_DEBUG_RF_KILL(mvm
, "Card state received: HW:%s SW:%s CT:%s\n",
551 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
552 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On",
553 (flags
& CT_KILL_CARD_DISABLED
) ?
554 "Reached" : "Not reached");
559 int iwl_mvm_rx_radio_ver(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
560 struct iwl_device_cmd
*cmd
)
562 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
563 struct iwl_radio_version_notif
*radio_version
= (void *)pkt
->data
;
565 /* TODO: what to do with that? */
567 "Radio version: flavor: 0x%08x, step 0x%08x, dash 0x%08x\n",
568 le32_to_cpu(radio_version
->radio_flavor
),
569 le32_to_cpu(radio_version
->radio_step
),
570 le32_to_cpu(radio_version
->radio_dash
));