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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2011 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/module.h>
  32 #include <linux/init.h>
  33 #include <linux/sched.h>
  34
  35 #include "iwl-dev.h"
  36 #include "iwl-core.h"
  37 #include "iwl-io.h"
  38 #include "iwl-helpers.h"
  39 #include "iwl-agn-hw.h"
  40 #include "iwl-agn.h"
  41 #include "iwl-agn-calib.h"
  42 #include "iwl-trans.h"
  43 #include "iwl-fh.h"
  44
  45 static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
  46         {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
  47          0, COEX_UNASSOC_IDLE_FLAGS},
  48         {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
  49          0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
  50         {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
  51          0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
  52         {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
  53          0, COEX_CALIBRATION_FLAGS},
  54         {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
  55          0, COEX_PERIODIC_CALIBRATION_FLAGS},
  56         {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
  57          0, COEX_CONNECTION_ESTAB_FLAGS},
  58         {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
  59          0, COEX_ASSOCIATED_IDLE_FLAGS},
  60         {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
  61          0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
  62         {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
  63          0, COEX_ASSOC_AUTO_SCAN_FLAGS},
  64         {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
  65          0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
  66         {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
  67         {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
  68         {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
  69          0, COEX_STAND_ALONE_DEBUG_FLAGS},
  70         {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
  71          0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
  72         {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
  73         {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
  74 };
  75
  76 /*
  77  * ucode
  78  */
  79 static int iwlagn_load_section(struct iwl_priv *priv, const char *name,
  80                                 struct fw_desc *image, u32 dst_addr)
  81 {
  82         dma_addr_t phy_addr = image->p_addr;
  83         u32 byte_cnt = image->len;
  84         int ret;
  85
  86         priv->ucode_write_complete = 0;
  87
  88         iwl_write_direct32(bus(priv),
  89                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
  90                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
  91
  92         iwl_write_direct32(bus(priv),
  93                 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
  94
  95         iwl_write_direct32(bus(priv),
  96                 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
  97                 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
  98
  99         iwl_write_direct32(bus(priv),
 100                 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
 101                 (iwl_get_dma_hi_addr(phy_addr)
 102                         << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt);
 103
 104         iwl_write_direct32(bus(priv),
 105                 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
 106                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
 107                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
 108                 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
 109
 110         iwl_write_direct32(bus(priv),
 111                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 112                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE       |
 113                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE    |
 114                 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
 115
 116         IWL_DEBUG_FW(priv, "%s uCode section being loaded...\n", name);
 117         ret = wait_event_interruptible_timeout(priv->wait_command_queue,
 118                                         priv->ucode_write_complete, 5 * HZ);
 119         if (ret == -ERESTARTSYS) {
 120                 IWL_ERR(priv, "Could not load the %s uCode section due "
 121                         "to interrupt\n", name);
 122                 return ret;
 123         }
 124         if (!ret) {
 125                 IWL_ERR(priv, "Could not load the %s uCode section\n",
 126                         name);
 127                 return -ETIMEDOUT;
 128         }
 129
 130         return 0;
 131 }
 132
 133 static int iwlagn_load_given_ucode(struct iwl_priv *priv,
 134                                    struct fw_img *image)
 135 {
 136         int ret = 0;
 137
 138         ret = iwlagn_load_section(priv, "INST", &image->code,
 139                                    IWLAGN_RTC_INST_LOWER_BOUND);
 140         if (ret)
 141                 return ret;
 142
 143         return iwlagn_load_section(priv, "DATA", &image->data,
 144                                     IWLAGN_RTC_DATA_LOWER_BOUND);
 145 }
 146
 147 /*
 148  *  Calibration
 149  */
 150 static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
 151 {
 152         struct iwl_calib_xtal_freq_cmd cmd;
 153         __le16 *xtal_calib =
 154                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);
 155
 156         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
 157         cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 158         cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 159         return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
 160                              (u8 *)&cmd, sizeof(cmd));
 161 }
 162
 163 static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
 164 {
 165         struct iwl_calib_temperature_offset_cmd cmd;
 166         __le16 *offset_calib =
 167                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_TEMPERATURE);
 168
 169         memset(&cmd, 0, sizeof(cmd));
 170         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 171         memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(offset_calib));
 172         if (!(cmd.radio_sensor_offset))
 173                 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
 174
 175         IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 176                         le16_to_cpu(cmd.radio_sensor_offset));
 177         return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
 178                              (u8 *)&cmd, sizeof(cmd));
 179 }
 180
 181 static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
 182 {
 183         struct iwl_calib_cfg_cmd calib_cfg_cmd;
 184         struct iwl_host_cmd cmd = {
 185                 .id = CALIBRATION_CFG_CMD,
 186                 .len = { sizeof(struct iwl_calib_cfg_cmd), },
 187                 .data = { &calib_cfg_cmd, },
 188         };
 189
 190         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 191         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 192         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 193         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 194         calib_cfg_cmd.ucd_calib_cfg.flags =
 195                 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 196
 197         return iwl_trans_send_cmd(trans(priv), &cmd);
 198 }
 199
 200 void iwlagn_rx_calib_result(struct iwl_priv *priv,
 201                              struct iwl_rx_mem_buffer *rxb)
 202 {
 203         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 204         struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
 205         int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 206         int index;
 207
 208         /* reduce the size of the length field itself */
 209         len -= 4;
 210
 211         /* Define the order in which the results will be sent to the runtime
 212          * uCode. iwl_send_calib_results sends them in a row according to
 213          * their index. We sort them here
 214          */
 215         switch (hdr->op_code) {
 216         case IWL_PHY_CALIBRATE_DC_CMD:
 217                 index = IWL_CALIB_DC;
 218                 break;
 219         case IWL_PHY_CALIBRATE_LO_CMD:
 220                 index = IWL_CALIB_LO;
 221                 break;
 222         case IWL_PHY_CALIBRATE_TX_IQ_CMD:
 223                 index = IWL_CALIB_TX_IQ;
 224                 break;
 225         case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
 226                 index = IWL_CALIB_TX_IQ_PERD;
 227                 break;
 228         case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
 229                 index = IWL_CALIB_BASE_BAND;
 230                 break;
 231         default:
 232                 IWL_ERR(priv, "Unknown calibration notification %d\n",
 233                           hdr->op_code);
 234                 return;
 235         }
 236         iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
 237 }
 238
 239 int iwlagn_init_alive_start(struct iwl_priv *priv)
 240 {
 241         int ret;
 242
 243         if (priv->cfg->bt_params &&
 244             priv->cfg->bt_params->advanced_bt_coexist) {
 245                 /*
 246                  * Tell uCode we are ready to perform calibration
 247                  * need to perform this before any calibration
 248                  * no need to close the envlope since we are going
 249                  * to load the runtime uCode later.
 250                  */
 251                 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 252                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 253                 if (ret)
 254                         return ret;
 255
 256         }
 257
 258         ret = iwlagn_send_calib_cfg(priv);
 259         if (ret)
 260                 return ret;
 261
 262         /**
 263          * temperature offset calibration is only needed for runtime ucode,
 264          * so prepare the value now.
 265          */
 266         if (priv->cfg->need_temp_offset_calib)
 267                 return iwlagn_set_temperature_offset_calib(priv);
 268
 269         return 0;
 270 }
 271
 272 static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
 273 {
 274         struct iwl_wimax_coex_cmd coex_cmd;
 275
 276         if (priv->cfg->base_params->support_wimax_coexist) {
 277                 /* UnMask wake up src at associated sleep */
 278                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 279
 280                 /* UnMask wake up src at unassociated sleep */
 281                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 282                 memcpy(coex_cmd.sta_prio, cu_priorities,
 283                         sizeof(struct iwl_wimax_coex_event_entry) *
 284                          COEX_NUM_OF_EVENTS);
 285
 286                 /* enabling the coexistence feature */
 287                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 288
 289                 /* enabling the priorities tables */
 290                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 291         } else {
 292                 /* coexistence is disabled */
 293                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 294         }
 295         return iwl_trans_send_cmd_pdu(trans(priv),
 296                                 COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
 297                                 sizeof(coex_cmd), &coex_cmd);
 298 }
 299
 300 static const u8 iwlagn_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 301         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 302                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 303         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 304                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 305         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 306                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 307         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 308                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 309         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 310                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 311         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 312                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 313         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 314                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 315         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 316                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 317         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 318                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 319         0, 0, 0, 0, 0, 0, 0
 320 };
 321
 322 void iwlagn_send_prio_tbl(struct iwl_priv *priv)
 323 {
 324         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 325
 326         memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl,
 327                 sizeof(iwlagn_bt_prio_tbl));
 328         if (iwl_trans_send_cmd_pdu(trans(priv),
 329                                 REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
 330                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 331                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 332 }
 333
 334 int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 335 {
 336         struct iwl_bt_coex_prot_env_cmd env_cmd;
 337         int ret;
 338
 339         env_cmd.action = action;
 340         env_cmd.type = type;
 341         ret = iwl_trans_send_cmd_pdu(trans(priv),
 342                                REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
 343                                sizeof(env_cmd), &env_cmd);
 344         if (ret)
 345                 IWL_ERR(priv, "failed to send BT env command\n");
 346         return ret;
 347 }
 348
 349
 350 static int iwlagn_alive_notify(struct iwl_priv *priv)
 351 {
 352         int ret;
 353
 354         iwl_trans_tx_start(trans(priv));
 355
 356         ret = iwlagn_send_wimax_coex(priv);
 357         if (ret)
 358                 return ret;
 359
 360         ret = iwlagn_set_Xtal_calib(priv);
 361         if (ret)
 362                 return ret;
 363
 364         return iwl_send_calib_results(priv);
 365 }
 366
 367
 368 /**
 369  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 370  *   using sample data 100 bytes apart.  If these sample points are good,
 371  *   it's a pretty good bet that everything between them is good, too.
 372  */
 373 static int iwl_verify_inst_sparse(struct iwl_priv *priv,
 374                                       struct fw_desc *fw_desc)
 375 {
 376         __le32 *image = (__le32 *)fw_desc->v_addr;
 377         u32 len = fw_desc->len;
 378         u32 val;
 379         u32 i;
 380
 381         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 382
 383         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 384                 /* read data comes through single port, auto-incr addr */
 385                 /* NOTE: Use the debugless read so we don't flood kernel log
 386                  * if IWL_DL_IO is set */
 387                 iwl_write_direct32(bus(priv), HBUS_TARG_MEM_RADDR,
 388                         i + IWLAGN_RTC_INST_LOWER_BOUND);
 389                 val = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
 390                 if (val != le32_to_cpu(*image))
 391                         return -EIO;
 392         }
 393
 394         return 0;
 395 }
 396
 397 static void iwl_print_mismatch_inst(struct iwl_priv *priv,
 398                                     struct fw_desc *fw_desc)
 399 {
 400         __le32 *image = (__le32 *)fw_desc->v_addr;
 401         u32 len = fw_desc->len;
 402         u32 val;
 403         u32 offs;
 404         int errors = 0;
 405
 406         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 407
 408         iwl_write_direct32(bus(priv), HBUS_TARG_MEM_RADDR,
 409                            IWLAGN_RTC_INST_LOWER_BOUND);
 410
 411         for (offs = 0;
 412              offs < len && errors < 20;
 413              offs += sizeof(u32), image++) {
 414                 /* read data comes through single port, auto-incr addr */
 415                 val = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
 416                 if (val != le32_to_cpu(*image)) {
 417                         IWL_ERR(priv, "uCode INST section at "
 418                                 "offset 0x%x, is 0x%x, s/b 0x%x\n",
 419                                 offs, val, le32_to_cpu(*image));
 420                         errors++;
 421                 }
 422         }
 423 }
 424
 425 /**
 426  * iwl_verify_ucode - determine which instruction image is in SRAM,
 427  *    and verify its contents
 428  */
 429 static int iwl_verify_ucode(struct iwl_priv *priv, struct fw_img *img)
 430 {
 431         if (!iwl_verify_inst_sparse(priv, &img->code)) {
 432                 IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
 433                 return 0;
 434         }
 435
 436         IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 437
 438         iwl_print_mismatch_inst(priv, &img->code);
 439         return -EIO;
 440 }
 441
 442 struct iwlagn_alive_data {
 443         bool valid;
 444         u8 subtype;
 445 };
 446
 447 static void iwlagn_alive_fn(struct iwl_priv *priv,
 448                             struct iwl_rx_packet *pkt,
 449                             void *data)
 450 {
 451         struct iwlagn_alive_data *alive_data = data;
 452         struct iwl_alive_resp *palive;
 453
 454         palive = &pkt->u.alive_frame;
 455
 456         IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 457                        "0x%01X 0x%01X\n",
 458                        palive->is_valid, palive->ver_type,
 459                        palive->ver_subtype);
 460
 461         priv->device_pointers.error_event_table =
 462                 le32_to_cpu(palive->error_event_table_ptr);
 463         priv->device_pointers.log_event_table =
 464                 le32_to_cpu(palive->log_event_table_ptr);
 465
 466         alive_data->subtype = palive->ver_subtype;
 467         alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 468 }
 469
 470 #define UCODE_ALIVE_TIMEOUT     HZ
 471 #define UCODE_CALIB_TIMEOUT     (2*HZ)
 472
 473 int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
 474                                  struct fw_img *image,
 475                                  enum iwlagn_ucode_type ucode_type)
 476 {
 477         struct iwl_notification_wait alive_wait;
 478         struct iwlagn_alive_data alive_data;
 479         int ret;
 480         enum iwlagn_ucode_type old_type;
 481
 482         ret = iwl_trans_start_device(trans(priv));
 483         if (ret)
 484                 return ret;
 485
 486         iwlagn_init_notification_wait(priv, &alive_wait, REPLY_ALIVE,
 487                                       iwlagn_alive_fn, &alive_data);
 488
 489         old_type = priv->ucode_type;
 490         priv->ucode_type = ucode_type;
 491
 492         ret = iwlagn_load_given_ucode(priv, image);
 493         if (ret) {
 494                 priv->ucode_type = old_type;
 495                 iwlagn_remove_notification(priv, &alive_wait);
 496                 return ret;
 497         }
 498
 499         iwl_trans_kick_nic(trans(priv));
 500
 501         /*
 502          * Some things may run in the background now, but we
 503          * just wait for the ALIVE notification here.
 504          */
 505         ret = iwlagn_wait_notification(priv, &alive_wait, UCODE_ALIVE_TIMEOUT);
 506         if (ret) {
 507                 priv->ucode_type = old_type;
 508                 return ret;
 509         }
 510
 511         if (!alive_data.valid) {
 512                 IWL_ERR(priv, "Loaded ucode is not valid!\n");
 513                 priv->ucode_type = old_type;
 514                 return -EIO;
 515         }
 516
 517         /*
 518          * This step takes a long time (60-80ms!!) and
 519          * WoWLAN image should be loaded quickly, so
 520          * skip it for WoWLAN.
 521          */
 522         if (ucode_type != IWL_UCODE_WOWLAN) {
 523                 ret = iwl_verify_ucode(priv, image);
 524                 if (ret) {
 525                         priv->ucode_type = old_type;
 526                         return ret;
 527                 }
 528
 529                 /* delay a bit to give rfkill time to run */
 530                 msleep(5);
 531         }
 532
 533         ret = iwlagn_alive_notify(priv);
 534         if (ret) {
 535                 IWL_WARN(priv,
 536                         "Could not complete ALIVE transition: %d\n", ret);
 537                 priv->ucode_type = old_type;
 538                 return ret;
 539         }
 540
 541         return 0;
 542 }
 543
 544 int iwlagn_run_init_ucode(struct iwl_priv *priv)
 545 {
 546         struct iwl_notification_wait calib_wait;
 547         int ret;
 548
 549         lockdep_assert_held(&priv->shrd->mutex);
 550
 551         /* No init ucode required? Curious, but maybe ok */
 552         if (!priv->ucode_init.code.len)
 553                 return 0;
 554
 555         if (priv->ucode_type != IWL_UCODE_NONE)
 556                 return 0;
 557
 558         iwlagn_init_notification_wait(priv, &calib_wait,
 559                                       CALIBRATION_COMPLETE_NOTIFICATION,
 560                                       NULL, NULL);
 561
 562         /* Will also start the device */
 563         ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_init,
 564                                            IWL_UCODE_INIT);
 565         if (ret)
 566                 goto error;
 567
 568         ret = iwlagn_init_alive_start(priv);
 569         if (ret)
 570                 goto error;
 571
 572         /*
 573          * Some things may run in the background now, but we
 574          * just wait for the calibration complete notification.
 575          */
 576         ret = iwlagn_wait_notification(priv, &calib_wait, UCODE_CALIB_TIMEOUT);
 577
 578         goto out;
 579
 580  error:
 581         iwlagn_remove_notification(priv, &calib_wait);
 582  out:
 583         /* Whatever happened, stop the device */
 584         iwl_trans_stop_device(trans(priv));
 585         return ret;
 586 }