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         switch (ucode_type) {
  84         case IWL_UCODE_INIT:
  85                 return &priv->fw->ucode_init;
  86         case IWL_UCODE_WOWLAN:
  87                 return &priv->fw->ucode_wowlan;
  88         case IWL_UCODE_REGULAR:
  89                 return &priv->fw->ucode_rt;
  90         case IWL_UCODE_NONE:
  91                 break;
  92         }
  93         return NULL;
  94 }
  95
  96 /*
  97  *  Calibration
  98  */
  99 static int iwl_set_Xtal_calib(struct iwl_priv *priv)
 100 {
 101         struct iwl_calib_xtal_freq_cmd cmd;
 102         __le16 *xtal_calib =
 103                 (__le16 *)iwl_eeprom_query_addr(priv->shrd, EEPROM_XTAL);
 104
 105         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
 106         cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 107         cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 108         return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 109 }
 110
 111 static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
 112 {
 113         struct iwl_calib_temperature_offset_cmd cmd;
 114         __le16 *offset_calib =
 115                 (__le16 *)iwl_eeprom_query_addr(priv->shrd,
 116                                                 EEPROM_RAW_TEMPERATURE);
 117
 118         memset(&cmd, 0, sizeof(cmd));
 119         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 120         memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(*offset_calib));
 121         if (!(cmd.radio_sensor_offset))
 122                 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
 123
 124         IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 125                         le16_to_cpu(cmd.radio_sensor_offset));
 126         return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 127 }
 128
 129 static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
 130 {
 131         struct iwl_calib_temperature_offset_v2_cmd cmd;
 132         __le16 *offset_calib_high = (__le16 *)iwl_eeprom_query_addr(priv->shrd,
 133                                      EEPROM_KELVIN_TEMPERATURE);
 134         __le16 *offset_calib_low =
 135                 (__le16 *)iwl_eeprom_query_addr(priv->shrd,
 136                                                 EEPROM_RAW_TEMPERATURE);
 137         struct iwl_eeprom_calib_hdr *hdr;
 138
 139         memset(&cmd, 0, sizeof(cmd));
 140         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 141         hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv->shrd,
 142                                                         EEPROM_CALIB_ALL);
 143         memcpy(&cmd.radio_sensor_offset_high, offset_calib_high,
 144                 sizeof(*offset_calib_high));
 145         memcpy(&cmd.radio_sensor_offset_low, offset_calib_low,
 146                 sizeof(*offset_calib_low));
 147         if (!(cmd.radio_sensor_offset_low)) {
 148                 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
 149                 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
 150                 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
 151         }
 152         memcpy(&cmd.burntVoltageRef, &hdr->voltage,
 153                 sizeof(hdr->voltage));
 154
 155         IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
 156                         le16_to_cpu(cmd.radio_sensor_offset_high));
 157         IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
 158                         le16_to_cpu(cmd.radio_sensor_offset_low));
 159         IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
 160                         le16_to_cpu(cmd.burntVoltageRef));
 161
 162         return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 163 }
 164
 165 static int iwl_send_calib_cfg(struct iwl_priv *priv)
 166 {
 167         struct iwl_calib_cfg_cmd calib_cfg_cmd;
 168         struct iwl_host_cmd cmd = {
 169                 .id = CALIBRATION_CFG_CMD,
 170                 .len = { sizeof(struct iwl_calib_cfg_cmd), },
 171                 .data = { &calib_cfg_cmd, },
 172         };
 173
 174         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 175         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 176         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 177         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 178         calib_cfg_cmd.ucd_calib_cfg.flags =
 179                 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 180
 181         return iwl_dvm_send_cmd(priv, &cmd);
 182 }
 183
 184 int iwlagn_rx_calib_result(struct iwl_priv *priv,
 185                             struct iwl_rx_cmd_buffer *rxb,
 186                             struct iwl_device_cmd *cmd)
 187 {
 188         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 189         struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->data;
 190         int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 191
 192         /* reduce the size of the length field itself */
 193         len -= 4;
 194
 195         if (iwl_calib_set(priv, hdr, len))
 196                 IWL_ERR(priv, "Failed to record calibration data %d\n",
 197                         hdr->op_code);
 198
 199         return 0;
 200 }
 201
 202 int iwl_init_alive_start(struct iwl_priv *priv)
 203 {
 204         int ret;
 205
 206         if (cfg(priv)->bt_params &&
 207             cfg(priv)->bt_params->advanced_bt_coexist) {
 208                 /*
 209                  * Tell uCode we are ready to perform calibration
 210                  * need to perform this before any calibration
 211                  * no need to close the envlope since we are going
 212                  * to load the runtime uCode later.
 213                  */
 214                 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 215                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 216                 if (ret)
 217                         return ret;
 218
 219         }
 220
 221         ret = iwl_send_calib_cfg(priv);
 222         if (ret)
 223                 return ret;
 224
 225         /**
 226          * temperature offset calibration is only needed for runtime ucode,
 227          * so prepare the value now.
 228          */
 229         if (cfg(priv)->need_temp_offset_calib) {
 230                 if (cfg(priv)->temp_offset_v2)
 231                         return iwl_set_temperature_offset_calib_v2(priv);
 232                 else
 233                         return iwl_set_temperature_offset_calib(priv);
 234         }
 235
 236         return 0;
 237 }
 238
 239 static int iwl_send_wimax_coex(struct iwl_priv *priv)
 240 {
 241         struct iwl_wimax_coex_cmd coex_cmd;
 242
 243         if (cfg(priv)->base_params->support_wimax_coexist) {
 244                 /* UnMask wake up src at associated sleep */
 245                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 246
 247                 /* UnMask wake up src at unassociated sleep */
 248                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 249                 memcpy(coex_cmd.sta_prio, cu_priorities,
 250                         sizeof(struct iwl_wimax_coex_event_entry) *
 251                          COEX_NUM_OF_EVENTS);
 252
 253                 /* enabling the coexistence feature */
 254                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 255
 256                 /* enabling the priorities tables */
 257                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 258         } else {
 259                 /* coexistence is disabled */
 260                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 261         }
 262         return iwl_dvm_send_cmd_pdu(priv,
 263                                 COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
 264                                 sizeof(coex_cmd), &coex_cmd);
 265 }
 266
 267 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 268         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 269                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 270         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 271                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 272         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 273                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 274         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 275                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 276         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 277                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 278         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 279                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 280         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 281                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 282         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 283                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 284         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 285                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 286         0, 0, 0, 0, 0, 0, 0
 287 };
 288
 289 void iwl_send_prio_tbl(struct iwl_priv *priv)
 290 {
 291         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 292
 293         memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
 294                 sizeof(iwl_bt_prio_tbl));
 295         if (iwl_dvm_send_cmd_pdu(priv,
 296                                 REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
 297                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 298                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 299 }
 300
 301 int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 302 {
 303         struct iwl_bt_coex_prot_env_cmd env_cmd;
 304         int ret;
 305
 306         env_cmd.action = action;
 307         env_cmd.type = type;
 308         ret = iwl_dvm_send_cmd_pdu(priv,
 309                                REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
 310                                sizeof(env_cmd), &env_cmd);
 311         if (ret)
 312                 IWL_ERR(priv, "failed to send BT env command\n");
 313         return ret;
 314 }
 315
 316
 317 static int iwl_alive_notify(struct iwl_priv *priv)
 318 {
 319         int ret;
 320
 321         if (!priv->tx_cmd_pool)
 322                 priv->tx_cmd_pool =
 323                         kmem_cache_create("iwl_dev_cmd",
 324                                           sizeof(struct iwl_device_cmd),
 325                                           sizeof(void *), 0, NULL);
 326
 327         if (!priv->tx_cmd_pool)
 328                 return -ENOMEM;
 329
 330         iwl_trans_fw_alive(trans(priv));
 331
 332         priv->passive_no_rx = false;
 333         priv->transport_queue_stop = 0;
 334
 335         ret = iwl_send_wimax_coex(priv);
 336         if (ret)
 337                 return ret;
 338
 339         if (!cfg(priv)->no_xtal_calib) {
 340                 ret = iwl_set_Xtal_calib(priv);
 341                 if (ret)
 342                         return ret;
 343         }
 344
 345         return iwl_send_calib_results(priv);
 346 }
 347
 348
 349 /**
 350  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 351  *   using sample data 100 bytes apart.  If these sample points are good,
 352  *   it's a pretty good bet that everything between them is good, too.
 353  */
 354 static int iwl_verify_inst_sparse(struct iwl_priv *priv,
 355                                   const struct fw_desc *fw_desc)
 356 {
 357         __le32 *image = (__le32 *)fw_desc->v_addr;
 358         u32 len = fw_desc->len;
 359         u32 val;
 360         u32 i;
 361
 362         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 363
 364         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 365                 /* read data comes through single port, auto-incr addr */
 366                 /* NOTE: Use the debugless read so we don't flood kernel log
 367                  * if IWL_DL_IO is set */
 368                 iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
 369                         i + IWLAGN_RTC_INST_LOWER_BOUND);
 370                 val = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
 371                 if (val != le32_to_cpu(*image))
 372                         return -EIO;
 373         }
 374
 375         return 0;
 376 }
 377
 378 static void iwl_print_mismatch_inst(struct iwl_priv *priv,
 379                                     const struct fw_desc *fw_desc)
 380 {
 381         __le32 *image = (__le32 *)fw_desc->v_addr;
 382         u32 len = fw_desc->len;
 383         u32 val;
 384         u32 offs;
 385         int errors = 0;
 386
 387         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 388
 389         iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
 390                            IWLAGN_RTC_INST_LOWER_BOUND);
 391
 392         for (offs = 0;
 393              offs < len && errors < 20;
 394              offs += sizeof(u32), image++) {
 395                 /* read data comes through single port, auto-incr addr */
 396                 val = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
 397                 if (val != le32_to_cpu(*image)) {
 398                         IWL_ERR(priv, "uCode INST section at "
 399                                 "offset 0x%x, is 0x%x, s/b 0x%x\n",
 400                                 offs, val, le32_to_cpu(*image));
 401                         errors++;
 402                 }
 403         }
 404 }
 405
 406 /**
 407  * iwl_verify_ucode - determine which instruction image is in SRAM,
 408  *    and verify its contents
 409  */
 410 static int iwl_verify_ucode(struct iwl_priv *priv,
 411                             enum iwl_ucode_type ucode_type)
 412 {
 413         const struct fw_img *img = iwl_get_ucode_image(priv, ucode_type);
 414
 415         if (!img) {
 416                 IWL_ERR(priv, "Invalid ucode requested (%d)\n", ucode_type);
 417                 return -EINVAL;
 418         }
 419
 420         if (!iwl_verify_inst_sparse(priv, &img->code)) {
 421                 IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
 422                 return 0;
 423         }
 424
 425         IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 426
 427         iwl_print_mismatch_inst(priv, &img->code);
 428         return -EIO;
 429 }
 430
 431 struct iwl_alive_data {
 432         bool valid;
 433         u8 subtype;
 434 };
 435
 436 static void iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 437                             struct iwl_rx_packet *pkt,
 438                             void *data)
 439 {
 440         struct iwl_priv *priv =
 441                 container_of(notif_wait, struct iwl_priv, notif_wait);
 442         struct iwl_alive_data *alive_data = data;
 443         struct iwl_alive_resp *palive;
 444
 445         palive = (void *)pkt->data;
 446
 447         IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 448                        "0x%01X 0x%01X\n",
 449                        palive->is_valid, palive->ver_type,
 450                        palive->ver_subtype);
 451
 452         priv->shrd->device_pointers.error_event_table =
 453                 le32_to_cpu(palive->error_event_table_ptr);
 454         priv->shrd->device_pointers.log_event_table =
 455                 le32_to_cpu(palive->log_event_table_ptr);
 456
 457         alive_data->subtype = palive->ver_subtype;
 458         alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 459 }
 460
 461 #define UCODE_ALIVE_TIMEOUT     HZ
 462 #define UCODE_CALIB_TIMEOUT     (2*HZ)
 463
 464 int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
 465                                  enum iwl_ucode_type ucode_type)
 466 {
 467         struct iwl_notification_wait alive_wait;
 468         struct iwl_alive_data alive_data;
 469         const struct fw_img *fw;
 470         int ret;
 471         enum iwl_ucode_type old_type;
 472
 473         old_type = priv->shrd->ucode_type;
 474         priv->shrd->ucode_type = ucode_type;
 475         fw = iwl_get_ucode_image(priv, ucode_type);
 476
 477         if (!fw)
 478                 return -EINVAL;
 479
 480         iwl_init_notification_wait(&priv->notif_wait, &alive_wait, REPLY_ALIVE,
 481                                       iwl_alive_fn, &alive_data);
 482
 483         ret = iwl_trans_start_fw(trans(priv), fw);
 484         if (ret) {
 485                 priv->shrd->ucode_type = old_type;
 486                 iwl_remove_notification(&priv->notif_wait, &alive_wait);
 487                 return ret;
 488         }
 489
 490         /*
 491          * Some things may run in the background now, but we
 492          * just wait for the ALIVE notification here.
 493          */
 494         ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
 495                                         UCODE_ALIVE_TIMEOUT);
 496         if (ret) {
 497                 priv->shrd->ucode_type = old_type;
 498                 return ret;
 499         }
 500
 501         if (!alive_data.valid) {
 502                 IWL_ERR(priv, "Loaded ucode is not valid!\n");
 503                 priv->shrd->ucode_type = old_type;
 504                 return -EIO;
 505         }
 506
 507         /*
 508          * This step takes a long time (60-80ms!!) and
 509          * WoWLAN image should be loaded quickly, so
 510          * skip it for WoWLAN.
 511          */
 512         if (ucode_type != IWL_UCODE_WOWLAN) {
 513                 ret = iwl_verify_ucode(priv, ucode_type);
 514                 if (ret) {
 515                         priv->shrd->ucode_type = old_type;
 516                         return ret;
 517                 }
 518
 519                 /* delay a bit to give rfkill time to run */
 520                 msleep(5);
 521         }
 522
 523         ret = iwl_alive_notify(priv);
 524         if (ret) {
 525                 IWL_WARN(priv,
 526                         "Could not complete ALIVE transition: %d\n", ret);
 527                 priv->shrd->ucode_type = old_type;
 528                 return ret;
 529         }
 530
 531         return 0;
 532 }
 533
 534 int iwl_run_init_ucode(struct iwl_priv *priv)
 535 {
 536         struct iwl_notification_wait calib_wait;
 537         int ret;
 538
 539         lockdep_assert_held(&priv->mutex);
 540
 541         /* No init ucode required? Curious, but maybe ok */
 542         if (!priv->fw->ucode_init.code.len)
 543                 return 0;
 544
 545         if (priv->shrd->ucode_type != IWL_UCODE_NONE)
 546                 return 0;
 547
 548         iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
 549                                       CALIBRATION_COMPLETE_NOTIFICATION,
 550                                       NULL, NULL);
 551
 552         /* Will also start the device */
 553         ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 554         if (ret)
 555                 goto error;
 556
 557         ret = iwl_init_alive_start(priv);
 558         if (ret)
 559                 goto error;
 560
 561         /*
 562          * Some things may run in the background now, but we
 563          * just wait for the calibration complete notification.
 564          */
 565         ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
 566                                         UCODE_CALIB_TIMEOUT);
 567
 568         goto out;
 569
 570  error:
 571         iwl_remove_notification(&priv->notif_wait, &calib_wait);
 572  out:
 573         /* Whatever happened, stop the device */
 574         iwl_trans_stop_device(trans(priv));
 575         return ret;
 576 }