drivers/net/wireless/iwlwifi/iwl-ucode.c

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *
  28  *****************************************************************************/
  29
  30 #include <linux/kernel.h>
  31 #include <linux/init.h>
  32
  33 #include "iwl-dev.h"
  34 #include "iwl-core.h"
  35 #include "iwl-io.h"
  36 #include "iwl-agn-hw.h"
  37 #include "iwl-agn.h"
  38 #include "iwl-agn-calib.h"
  39 #include "iwl-trans.h"
  40 #include "iwl-fh.h"
  41 #include "iwl-op-mode.h"
  42
  43 static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
  44         {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
  45          0, COEX_UNASSOC_IDLE_FLAGS},
  46         {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
  47          0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
  48         {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
  49          0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
  50         {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
  51          0, COEX_CALIBRATION_FLAGS},
  52         {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
  53          0, COEX_PERIODIC_CALIBRATION_FLAGS},
  54         {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
  55          0, COEX_CONNECTION_ESTAB_FLAGS},
  56         {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
  57          0, COEX_ASSOCIATED_IDLE_FLAGS},
  58         {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
  59          0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
  60         {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
  61          0, COEX_ASSOC_AUTO_SCAN_FLAGS},
  62         {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
  63          0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
  64         {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
  65         {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
  66         {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
  67          0, COEX_STAND_ALONE_DEBUG_FLAGS},
  68         {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
  69          0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
  70         {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
  71         {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
  72 };
  73
  74 /******************************************************************************
  75  *
  76  * uCode download functions
  77  *
  78  ******************************************************************************/
  79
  80 static inline const struct fw_img *
  81 iwl_get_ucode_image(struct iwl_priv *priv, enum iwl_ucode_type ucode_type)
  82 {
  83         if (ucode_type >= IWL_UCODE_TYPE_MAX)
  84                 return NULL;
  85
  86         return &priv->fw->img[ucode_type];
  87 }
  88
  89 /*
  90  *  Calibration
  91  */
  92 static int iwl_set_Xtal_calib(struct iwl_priv *priv)
  93 {
  94         struct iwl_calib_xtal_freq_cmd cmd;
  95         __le16 *xtal_calib =
  96                 (__le16 *)iwl_eeprom_query_addr(priv->shrd, EEPROM_XTAL);
  97
  98         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
  99         cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 100         cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 101         return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 102 }
 103
 104 static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
 105 {
 106         struct iwl_calib_temperature_offset_cmd cmd;
 107         __le16 *offset_calib =
 108                 (__le16 *)iwl_eeprom_query_addr(priv->shrd,
 109                                                 EEPROM_RAW_TEMPERATURE);
 110
 111         memset(&cmd, 0, sizeof(cmd));
 112         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 113         memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(*offset_calib));
 114         if (!(cmd.radio_sensor_offset))
 115                 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
 116
 117         IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 118                         le16_to_cpu(cmd.radio_sensor_offset));
 119         return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 120 }
 121
 122 static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
 123 {
 124         struct iwl_calib_temperature_offset_v2_cmd cmd;
 125         __le16 *offset_calib_high = (__le16 *)iwl_eeprom_query_addr(priv->shrd,
 126                                      EEPROM_KELVIN_TEMPERATURE);
 127         __le16 *offset_calib_low =
 128                 (__le16 *)iwl_eeprom_query_addr(priv->shrd,
 129                                                 EEPROM_RAW_TEMPERATURE);
 130         struct iwl_eeprom_calib_hdr *hdr;
 131
 132         memset(&cmd, 0, sizeof(cmd));
 133         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 134         hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv->shrd,
 135                                                         EEPROM_CALIB_ALL);
 136         memcpy(&cmd.radio_sensor_offset_high, offset_calib_high,
 137                 sizeof(*offset_calib_high));
 138         memcpy(&cmd.radio_sensor_offset_low, offset_calib_low,
 139                 sizeof(*offset_calib_low));
 140         if (!(cmd.radio_sensor_offset_low)) {
 141                 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
 142                 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
 143                 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
 144         }
 145         memcpy(&cmd.burntVoltageRef, &hdr->voltage,
 146                 sizeof(hdr->voltage));
 147
 148         IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
 149                         le16_to_cpu(cmd.radio_sensor_offset_high));
 150         IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
 151                         le16_to_cpu(cmd.radio_sensor_offset_low));
 152         IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
 153                         le16_to_cpu(cmd.burntVoltageRef));
 154
 155         return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 156 }
 157
 158 static int iwl_send_calib_cfg(struct iwl_priv *priv)
 159 {
 160         struct iwl_calib_cfg_cmd calib_cfg_cmd;
 161         struct iwl_host_cmd cmd = {
 162                 .id = CALIBRATION_CFG_CMD,
 163                 .len = { sizeof(struct iwl_calib_cfg_cmd), },
 164                 .data = { &calib_cfg_cmd, },
 165         };
 166
 167         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 168         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 169         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 170         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 171         calib_cfg_cmd.ucd_calib_cfg.flags =
 172                 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 173
 174         return iwl_dvm_send_cmd(priv, &cmd);
 175 }
 176
 177 int iwl_init_alive_start(struct iwl_priv *priv)
 178 {
 179         int ret;
 180
 181         if (cfg(priv)->bt_params &&
 182             cfg(priv)->bt_params->advanced_bt_coexist) {
 183                 /*
 184                  * Tell uCode we are ready to perform calibration
 185                  * need to perform this before any calibration
 186                  * no need to close the envlope since we are going
 187                  * to load the runtime uCode later.
 188                  */
 189                 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 190                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 191                 if (ret)
 192                         return ret;
 193
 194         }
 195
 196         ret = iwl_send_calib_cfg(priv);
 197         if (ret)
 198                 return ret;
 199
 200         /**
 201          * temperature offset calibration is only needed for runtime ucode,
 202          * so prepare the value now.
 203          */
 204         if (cfg(priv)->need_temp_offset_calib) {
 205                 if (cfg(priv)->temp_offset_v2)
 206                         return iwl_set_temperature_offset_calib_v2(priv);
 207                 else
 208                         return iwl_set_temperature_offset_calib(priv);
 209         }
 210
 211         return 0;
 212 }
 213
 214 static int iwl_send_wimax_coex(struct iwl_priv *priv)
 215 {
 216         struct iwl_wimax_coex_cmd coex_cmd;
 217
 218         if (cfg(priv)->base_params->support_wimax_coexist) {
 219                 /* UnMask wake up src at associated sleep */
 220                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 221
 222                 /* UnMask wake up src at unassociated sleep */
 223                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 224                 memcpy(coex_cmd.sta_prio, cu_priorities,
 225                         sizeof(struct iwl_wimax_coex_event_entry) *
 226                          COEX_NUM_OF_EVENTS);
 227
 228                 /* enabling the coexistence feature */
 229                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 230
 231                 /* enabling the priorities tables */
 232                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 233         } else {
 234                 /* coexistence is disabled */
 235                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 236         }
 237         return iwl_dvm_send_cmd_pdu(priv,
 238                                 COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
 239                                 sizeof(coex_cmd), &coex_cmd);
 240 }
 241
 242 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 243         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 244                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 245         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 246                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 247         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 248                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 249         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 250                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 251         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 252                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 253         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 254                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 255         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 256                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 257         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 258                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 259         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 260                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 261         0, 0, 0, 0, 0, 0, 0
 262 };
 263
 264 void iwl_send_prio_tbl(struct iwl_priv *priv)
 265 {
 266         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 267
 268         memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
 269                 sizeof(iwl_bt_prio_tbl));
 270         if (iwl_dvm_send_cmd_pdu(priv,
 271                                 REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
 272                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 273                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 274 }
 275
 276 int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 277 {
 278         struct iwl_bt_coex_prot_env_cmd env_cmd;
 279         int ret;
 280
 281         env_cmd.action = action;
 282         env_cmd.type = type;
 283         ret = iwl_dvm_send_cmd_pdu(priv,
 284                                REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
 285                                sizeof(env_cmd), &env_cmd);
 286         if (ret)
 287                 IWL_ERR(priv, "failed to send BT env command\n");
 288         return ret;
 289 }
 290
 291
 292 static int iwl_alive_notify(struct iwl_priv *priv)
 293 {
 294         int ret;
 295
 296         iwl_trans_fw_alive(trans(priv));
 297
 298         priv->passive_no_rx = false;
 299         priv->transport_queue_stop = 0;
 300
 301         ret = iwl_send_wimax_coex(priv);
 302         if (ret)
 303                 return ret;
 304
 305         if (!cfg(priv)->no_xtal_calib) {
 306                 ret = iwl_set_Xtal_calib(priv);
 307                 if (ret)
 308                         return ret;
 309         }
 310
 311         return iwl_send_calib_results(priv);
 312 }
 313
 314
 315 /**
 316  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 317  *   using sample data 100 bytes apart.  If these sample points are good,
 318  *   it's a pretty good bet that everything between them is good, too.
 319  */
 320 static int iwl_verify_sec_sparse(struct iwl_priv *priv,
 321                                   const struct fw_desc *fw_desc)
 322 {
 323         __le32 *image = (__le32 *)fw_desc->v_addr;
 324         u32 len = fw_desc->len;
 325         u32 val;
 326         u32 i;
 327
 328         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 329
 330         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 331                 /* read data comes through single port, auto-incr addr */
 332                 /* NOTE: Use the debugless read so we don't flood kernel log
 333                  * if IWL_DL_IO is set */
 334                 iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
 335                         i + fw_desc->offset);
 336                 val = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
 337                 if (val != le32_to_cpu(*image))
 338                         return -EIO;
 339         }
 340
 341         return 0;
 342 }
 343
 344 static void iwl_print_mismatch_sec(struct iwl_priv *priv,
 345                                     const struct fw_desc *fw_desc)
 346 {
 347         __le32 *image = (__le32 *)fw_desc->v_addr;
 348         u32 len = fw_desc->len;
 349         u32 val;
 350         u32 offs;
 351         int errors = 0;
 352
 353         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 354
 355         iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
 356                                 fw_desc->offset);
 357
 358         for (offs = 0;
 359              offs < len && errors < 20;
 360              offs += sizeof(u32), image++) {
 361                 /* read data comes through single port, auto-incr addr */
 362                 val = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
 363                 if (val != le32_to_cpu(*image)) {
 364                         IWL_ERR(priv, "uCode INST section at "
 365                                 "offset 0x%x, is 0x%x, s/b 0x%x\n",
 366                                 offs, val, le32_to_cpu(*image));
 367                         errors++;
 368                 }
 369         }
 370 }
 371
 372 /**
 373  * iwl_verify_ucode - determine which instruction image is in SRAM,
 374  *    and verify its contents
 375  */
 376 static int iwl_verify_ucode(struct iwl_priv *priv,
 377                             enum iwl_ucode_type ucode_type)
 378 {
 379         const struct fw_img *img = iwl_get_ucode_image(priv, ucode_type);
 380
 381         if (!img) {
 382                 IWL_ERR(priv, "Invalid ucode requested (%d)\n", ucode_type);
 383                 return -EINVAL;
 384         }
 385
 386         if (!iwl_verify_sec_sparse(priv, &img->sec[IWL_UCODE_SECTION_INST])) {
 387                 IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
 388                 return 0;
 389         }
 390
 391         IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 392
 393         iwl_print_mismatch_sec(priv, &img->sec[IWL_UCODE_SECTION_INST]);
 394         return -EIO;
 395 }
 396
 397 struct iwl_alive_data {
 398         bool valid;
 399         u8 subtype;
 400 };
 401
 402 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 403                          struct iwl_rx_packet *pkt, void *data)
 404 {
 405         struct iwl_priv *priv =
 406                 container_of(notif_wait, struct iwl_priv, notif_wait);
 407         struct iwl_alive_data *alive_data = data;
 408         struct iwl_alive_resp *palive;
 409
 410         palive = (void *)pkt->data;
 411
 412         IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 413                        "0x%01X 0x%01X\n",
 414                        palive->is_valid, palive->ver_type,
 415                        palive->ver_subtype);
 416
 417         priv->shrd->device_pointers.error_event_table =
 418                 le32_to_cpu(palive->error_event_table_ptr);
 419         priv->shrd->device_pointers.log_event_table =
 420                 le32_to_cpu(palive->log_event_table_ptr);
 421
 422         alive_data->subtype = palive->ver_subtype;
 423         alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 424
 425         return true;
 426 }
 427
 428 #define UCODE_ALIVE_TIMEOUT     HZ
 429 #define UCODE_CALIB_TIMEOUT     (2*HZ)
 430
 431 int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
 432                                  enum iwl_ucode_type ucode_type)
 433 {
 434         struct iwl_notification_wait alive_wait;
 435         struct iwl_alive_data alive_data;
 436         const struct fw_img *fw;
 437         int ret;
 438         enum iwl_ucode_type old_type;
 439         static const u8 alive_cmd[] = { REPLY_ALIVE };
 440
 441         old_type = priv->shrd->ucode_type;
 442         priv->shrd->ucode_type = ucode_type;
 443         fw = iwl_get_ucode_image(priv, ucode_type);
 444
 445         priv->ucode_loaded = false;
 446
 447         if (!fw)
 448                 return -EINVAL;
 449
 450         iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
 451                                    alive_cmd, ARRAY_SIZE(alive_cmd),
 452                                    iwl_alive_fn, &alive_data);
 453
 454         ret = iwl_trans_start_fw(trans(priv), fw);
 455         if (ret) {
 456                 priv->shrd->ucode_type = old_type;
 457                 iwl_remove_notification(&priv->notif_wait, &alive_wait);
 458                 return ret;
 459         }
 460
 461         /*
 462          * Some things may run in the background now, but we
 463          * just wait for the ALIVE notification here.
 464          */
 465         ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
 466                                         UCODE_ALIVE_TIMEOUT);
 467         if (ret) {
 468                 priv->shrd->ucode_type = old_type;
 469                 return ret;
 470         }
 471
 472         if (!alive_data.valid) {
 473                 IWL_ERR(priv, "Loaded ucode is not valid!\n");
 474                 priv->shrd->ucode_type = old_type;
 475                 return -EIO;
 476         }
 477
 478         /*
 479          * This step takes a long time (60-80ms!!) and
 480          * WoWLAN image should be loaded quickly, so
 481          * skip it for WoWLAN.
 482          */
 483         if (ucode_type != IWL_UCODE_WOWLAN) {
 484                 ret = iwl_verify_ucode(priv, ucode_type);
 485                 if (ret) {
 486                         priv->shrd->ucode_type = old_type;
 487                         return ret;
 488                 }
 489
 490                 /* delay a bit to give rfkill time to run */
 491                 msleep(5);
 492         }
 493
 494         ret = iwl_alive_notify(priv);
 495         if (ret) {
 496                 IWL_WARN(priv,
 497                         "Could not complete ALIVE transition: %d\n", ret);
 498                 priv->shrd->ucode_type = old_type;
 499                 return ret;
 500         }
 501
 502         priv->ucode_loaded = true;
 503
 504         return 0;
 505 }
 506
 507 static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
 508                               struct iwl_rx_packet *pkt, void *data)
 509 {
 510         struct iwl_priv *priv = data;
 511         struct iwl_calib_hdr *hdr;
 512         int len;
 513
 514         if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
 515                 WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
 516                 return true;
 517         }
 518
 519         hdr = (struct iwl_calib_hdr *)pkt->data;
 520         len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 521
 522         /* reduce the size by the length field itself */
 523         len -= sizeof(__le32);
 524
 525         if (iwl_calib_set(priv, hdr, len))
 526                 IWL_ERR(priv, "Failed to record calibration data %d\n",
 527                         hdr->op_code);
 528
 529         return false;
 530 }
 531
 532 int iwl_run_init_ucode(struct iwl_priv *priv)
 533 {
 534         struct iwl_notification_wait calib_wait;
 535         static const u8 calib_complete[] = {
 536                 CALIBRATION_RES_NOTIFICATION,
 537                 CALIBRATION_COMPLETE_NOTIFICATION
 538         };
 539         int ret;
 540
 541         lockdep_assert_held(&priv->mutex);
 542
 543         /* No init ucode required? Curious, but maybe ok */
 544         if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
 545                 return 0;
 546
 547         if (priv->init_ucode_run)
 548                 return 0;
 549
 550         iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
 551                                    calib_complete, ARRAY_SIZE(calib_complete),
 552                                    iwlagn_wait_calib, priv);
 553
 554         /* Will also start the device */
 555         ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 556         if (ret)
 557                 goto error;
 558
 559         ret = iwl_init_alive_start(priv);
 560         if (ret)
 561                 goto error;
 562
 563         /*
 564          * Some things may run in the background now, but we
 565          * just wait for the calibration complete notification.
 566          */
 567         ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
 568                                         UCODE_CALIB_TIMEOUT);
 569         if (!ret)
 570                 priv->init_ucode_run = true;
 571
 572         goto out;
 573
 574  error:
 575         iwl_remove_notification(&priv->notif_wait, &calib_wait);
 576  out:
 577         /* Whatever happened, stop the device */
 578         iwl_trans_stop_device(trans(priv));
 579         priv->ucode_loaded = false;
 580
 581         return ret;
 582 }