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 iwlagn_rx_calib_result(struct iwl_priv *priv,
 178                             struct iwl_rx_cmd_buffer *rxb,
 179                             struct iwl_device_cmd *cmd)
 180 {
 181         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 182         struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->data;
 183         int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 184
 185         /* reduce the size of the length field itself */
 186         len -= 4;
 187
 188         if (iwl_calib_set(priv, hdr, len))
 189                 IWL_ERR(priv, "Failed to record calibration data %d\n",
 190                         hdr->op_code);
 191
 192         return 0;
 193 }
 194
 195 int iwl_init_alive_start(struct iwl_priv *priv)
 196 {
 197         int ret;
 198
 199         if (cfg(priv)->bt_params &&
 200             cfg(priv)->bt_params->advanced_bt_coexist) {
 201                 /*
 202                  * Tell uCode we are ready to perform calibration
 203                  * need to perform this before any calibration
 204                  * no need to close the envlope since we are going
 205                  * to load the runtime uCode later.
 206                  */
 207                 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 208                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 209                 if (ret)
 210                         return ret;
 211
 212         }
 213
 214         ret = iwl_send_calib_cfg(priv);
 215         if (ret)
 216                 return ret;
 217
 218         /**
 219          * temperature offset calibration is only needed for runtime ucode,
 220          * so prepare the value now.
 221          */
 222         if (cfg(priv)->need_temp_offset_calib) {
 223                 if (cfg(priv)->temp_offset_v2)
 224                         return iwl_set_temperature_offset_calib_v2(priv);
 225                 else
 226                         return iwl_set_temperature_offset_calib(priv);
 227         }
 228
 229         return 0;
 230 }
 231
 232 static int iwl_send_wimax_coex(struct iwl_priv *priv)
 233 {
 234         struct iwl_wimax_coex_cmd coex_cmd;
 235
 236         if (cfg(priv)->base_params->support_wimax_coexist) {
 237                 /* UnMask wake up src at associated sleep */
 238                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 239
 240                 /* UnMask wake up src at unassociated sleep */
 241                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 242                 memcpy(coex_cmd.sta_prio, cu_priorities,
 243                         sizeof(struct iwl_wimax_coex_event_entry) *
 244                          COEX_NUM_OF_EVENTS);
 245
 246                 /* enabling the coexistence feature */
 247                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 248
 249                 /* enabling the priorities tables */
 250                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 251         } else {
 252                 /* coexistence is disabled */
 253                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 254         }
 255         return iwl_dvm_send_cmd_pdu(priv,
 256                                 COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
 257                                 sizeof(coex_cmd), &coex_cmd);
 258 }
 259
 260 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 261         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 262                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 263         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 264                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 265         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 266                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 267         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 268                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 269         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 270                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 271         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 272                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 273         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 274                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 275         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 276                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 277         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 278                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 279         0, 0, 0, 0, 0, 0, 0
 280 };
 281
 282 void iwl_send_prio_tbl(struct iwl_priv *priv)
 283 {
 284         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 285
 286         memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
 287                 sizeof(iwl_bt_prio_tbl));
 288         if (iwl_dvm_send_cmd_pdu(priv,
 289                                 REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
 290                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 291                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 292 }
 293
 294 int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 295 {
 296         struct iwl_bt_coex_prot_env_cmd env_cmd;
 297         int ret;
 298
 299         env_cmd.action = action;
 300         env_cmd.type = type;
 301         ret = iwl_dvm_send_cmd_pdu(priv,
 302                                REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
 303                                sizeof(env_cmd), &env_cmd);
 304         if (ret)
 305                 IWL_ERR(priv, "failed to send BT env command\n");
 306         return ret;
 307 }
 308
 309
 310 static int iwl_alive_notify(struct iwl_priv *priv)
 311 {
 312         int ret;
 313
 314         iwl_trans_fw_alive(trans(priv));
 315
 316         priv->passive_no_rx = false;
 317         priv->transport_queue_stop = 0;
 318
 319         ret = iwl_send_wimax_coex(priv);
 320         if (ret)
 321                 return ret;
 322
 323         if (!cfg(priv)->no_xtal_calib) {
 324                 ret = iwl_set_Xtal_calib(priv);
 325                 if (ret)
 326                         return ret;
 327         }
 328
 329         return iwl_send_calib_results(priv);
 330 }
 331
 332
 333 /**
 334  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 335  *   using sample data 100 bytes apart.  If these sample points are good,
 336  *   it's a pretty good bet that everything between them is good, too.
 337  */
 338 static int iwl_verify_sec_sparse(struct iwl_priv *priv,
 339                                   const struct fw_desc *fw_desc)
 340 {
 341         __le32 *image = (__le32 *)fw_desc->v_addr;
 342         u32 len = fw_desc->len;
 343         u32 val;
 344         u32 i;
 345
 346         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 347
 348         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 349                 /* read data comes through single port, auto-incr addr */
 350                 /* NOTE: Use the debugless read so we don't flood kernel log
 351                  * if IWL_DL_IO is set */
 352                 iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
 353                         i + fw_desc->offset);
 354                 val = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
 355                 if (val != le32_to_cpu(*image))
 356                         return -EIO;
 357         }
 358
 359         return 0;
 360 }
 361
 362 static void iwl_print_mismatch_sec(struct iwl_priv *priv,
 363                                     const struct fw_desc *fw_desc)
 364 {
 365         __le32 *image = (__le32 *)fw_desc->v_addr;
 366         u32 len = fw_desc->len;
 367         u32 val;
 368         u32 offs;
 369         int errors = 0;
 370
 371         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 372
 373         iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
 374                                 fw_desc->offset);
 375
 376         for (offs = 0;
 377              offs < len && errors < 20;
 378              offs += sizeof(u32), image++) {
 379                 /* read data comes through single port, auto-incr addr */
 380                 val = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
 381                 if (val != le32_to_cpu(*image)) {
 382                         IWL_ERR(priv, "uCode INST section at "
 383                                 "offset 0x%x, is 0x%x, s/b 0x%x\n",
 384                                 offs, val, le32_to_cpu(*image));
 385                         errors++;
 386                 }
 387         }
 388 }
 389
 390 /**
 391  * iwl_verify_ucode - determine which instruction image is in SRAM,
 392  *    and verify its contents
 393  */
 394 static int iwl_verify_ucode(struct iwl_priv *priv,
 395                             enum iwl_ucode_type ucode_type)
 396 {
 397         const struct fw_img *img = iwl_get_ucode_image(priv, ucode_type);
 398
 399         if (!img) {
 400                 IWL_ERR(priv, "Invalid ucode requested (%d)\n", ucode_type);
 401                 return -EINVAL;
 402         }
 403
 404         if (!iwl_verify_sec_sparse(priv, &img->sec[IWL_UCODE_SECTION_INST])) {
 405                 IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
 406                 return 0;
 407         }
 408
 409         IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 410
 411         iwl_print_mismatch_sec(priv, &img->sec[IWL_UCODE_SECTION_INST]);
 412         return -EIO;
 413 }
 414
 415 struct iwl_alive_data {
 416         bool valid;
 417         u8 subtype;
 418 };
 419
 420 static void iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 421                             struct iwl_rx_packet *pkt,
 422                             void *data)
 423 {
 424         struct iwl_priv *priv =
 425                 container_of(notif_wait, struct iwl_priv, notif_wait);
 426         struct iwl_alive_data *alive_data = data;
 427         struct iwl_alive_resp *palive;
 428
 429         palive = (void *)pkt->data;
 430
 431         IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 432                        "0x%01X 0x%01X\n",
 433                        palive->is_valid, palive->ver_type,
 434                        palive->ver_subtype);
 435
 436         priv->shrd->device_pointers.error_event_table =
 437                 le32_to_cpu(palive->error_event_table_ptr);
 438         priv->shrd->device_pointers.log_event_table =
 439                 le32_to_cpu(palive->log_event_table_ptr);
 440
 441         alive_data->subtype = palive->ver_subtype;
 442         alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 443 }
 444
 445 #define UCODE_ALIVE_TIMEOUT     HZ
 446 #define UCODE_CALIB_TIMEOUT     (2*HZ)
 447
 448 int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
 449                                  enum iwl_ucode_type ucode_type)
 450 {
 451         struct iwl_notification_wait alive_wait;
 452         struct iwl_alive_data alive_data;
 453         const struct fw_img *fw;
 454         int ret;
 455         enum iwl_ucode_type old_type;
 456
 457         old_type = priv->shrd->ucode_type;
 458         priv->shrd->ucode_type = ucode_type;
 459         fw = iwl_get_ucode_image(priv, ucode_type);
 460
 461         priv->ucode_loaded = false;
 462
 463         if (!fw)
 464                 return -EINVAL;
 465
 466         iwl_init_notification_wait(&priv->notif_wait, &alive_wait, REPLY_ALIVE,
 467                                       iwl_alive_fn, &alive_data);
 468
 469         ret = iwl_trans_start_fw(trans(priv), fw);
 470         if (ret) {
 471                 priv->shrd->ucode_type = old_type;
 472                 iwl_remove_notification(&priv->notif_wait, &alive_wait);
 473                 return ret;
 474         }
 475
 476         /*
 477          * Some things may run in the background now, but we
 478          * just wait for the ALIVE notification here.
 479          */
 480         ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
 481                                         UCODE_ALIVE_TIMEOUT);
 482         if (ret) {
 483                 priv->shrd->ucode_type = old_type;
 484                 return ret;
 485         }
 486
 487         if (!alive_data.valid) {
 488                 IWL_ERR(priv, "Loaded ucode is not valid!\n");
 489                 priv->shrd->ucode_type = old_type;
 490                 return -EIO;
 491         }
 492
 493         /*
 494          * This step takes a long time (60-80ms!!) and
 495          * WoWLAN image should be loaded quickly, so
 496          * skip it for WoWLAN.
 497          */
 498         if (ucode_type != IWL_UCODE_WOWLAN) {
 499                 ret = iwl_verify_ucode(priv, ucode_type);
 500                 if (ret) {
 501                         priv->shrd->ucode_type = old_type;
 502                         return ret;
 503                 }
 504
 505                 /* delay a bit to give rfkill time to run */
 506                 msleep(5);
 507         }
 508
 509         ret = iwl_alive_notify(priv);
 510         if (ret) {
 511                 IWL_WARN(priv,
 512                         "Could not complete ALIVE transition: %d\n", ret);
 513                 priv->shrd->ucode_type = old_type;
 514                 return ret;
 515         }
 516
 517         priv->ucode_loaded = true;
 518
 519         return 0;
 520 }
 521
 522 int iwl_run_init_ucode(struct iwl_priv *priv)
 523 {
 524         struct iwl_notification_wait calib_wait;
 525         int ret;
 526
 527         lockdep_assert_held(&priv->mutex);
 528
 529         /* No init ucode required? Curious, but maybe ok */
 530         if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
 531                 return 0;
 532
 533         if (priv->init_ucode_run)
 534                 return 0;
 535
 536         iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
 537                                       CALIBRATION_COMPLETE_NOTIFICATION,
 538                                       NULL, NULL);
 539
 540         /* Will also start the device */
 541         ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 542         if (ret)
 543                 goto error;
 544
 545         ret = iwl_init_alive_start(priv);
 546         if (ret)
 547                 goto error;
 548
 549         /*
 550          * Some things may run in the background now, but we
 551          * just wait for the calibration complete notification.
 552          */
 553         ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
 554                                         UCODE_CALIB_TIMEOUT);
 555         if (!ret)
 556                 priv->init_ucode_run = true;
 557
 558         goto out;
 559
 560  error:
 561         iwl_remove_notification(&priv->notif_wait, &calib_wait);
 562  out:
 563         /* Whatever happened, stop the device */
 564         iwl_trans_stop_device(trans(priv));
 565         priv->ucode_loaded = false;
 566
 567         return ret;
 568 }