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-agn-hw.h"
  39 #include "iwl-agn.h"
  40 #include "iwl-agn-calib.h"
  41 #include "iwl-trans.h"
  42 #include "iwl-fh.h"
  43
  44 static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
  45         {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
  46          0, COEX_UNASSOC_IDLE_FLAGS},
  47         {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
  48          0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
  49         {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
  50          0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
  51         {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
  52          0, COEX_CALIBRATION_FLAGS},
  53         {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
  54          0, COEX_PERIODIC_CALIBRATION_FLAGS},
  55         {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
  56          0, COEX_CONNECTION_ESTAB_FLAGS},
  57         {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
  58          0, COEX_ASSOCIATED_IDLE_FLAGS},
  59         {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
  60          0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
  61         {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
  62          0, COEX_ASSOC_AUTO_SCAN_FLAGS},
  63         {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
  64          0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
  65         {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
  66         {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
  67         {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
  68          0, COEX_STAND_ALONE_DEBUG_FLAGS},
  69         {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
  70          0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
  71         {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
  72         {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
  73 };
  74
  75 /*
  76  * ucode
  77  */
  78 static int iwlagn_load_section(struct iwl_trans *trans, const char *name,
  79                                 struct fw_desc *image, u32 dst_addr)
  80 {
  81         struct iwl_bus *bus = bus(trans);
  82         dma_addr_t phy_addr = image->p_addr;
  83         u32 byte_cnt = image->len;
  84         int ret;
  85
  86         trans->ucode_write_complete = 0;
  87
  88         iwl_write_direct32(bus,
  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,
  93                 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
  94
  95         iwl_write_direct32(bus,
  96                 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
  97                 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
  98
  99         iwl_write_direct32(bus,
 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,
 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,
 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(bus, "%s uCode section being loaded...\n", name);
 117         ret = wait_event_timeout(trans->shrd->wait_command_queue,
 118                                  trans->ucode_write_complete, 5 * HZ);
 119         if (!ret) {
 120                 IWL_ERR(trans, "Could not load the %s uCode section\n",
 121                         name);
 122                 return -ETIMEDOUT;
 123         }
 124
 125         return 0;
 126 }
 127
 128 static inline struct fw_img *iwl_get_ucode_image(struct iwl_priv *priv,
 129                                         enum iwlagn_ucode_type ucode_type)
 130 {
 131         switch (ucode_type) {
 132         case IWL_UCODE_INIT:
 133                 return &priv->ucode_init;
 134         case IWL_UCODE_WOWLAN:
 135                 return &priv->ucode_wowlan;
 136         case IWL_UCODE_REGULAR:
 137                 return &priv->ucode_rt;
 138         case IWL_UCODE_NONE:
 139                 break;
 140         }
 141         return NULL;
 142 }
 143
 144 static int iwlagn_load_given_ucode(struct iwl_priv *priv,
 145                                    struct fw_img *image)
 146 {
 147         int ret = 0;
 148
 149         ret = iwlagn_load_section(trans(priv), "INST", &image->code,
 150                                    IWLAGN_RTC_INST_LOWER_BOUND);
 151         if (ret)
 152                 return ret;
 153
 154         return iwlagn_load_section(trans(priv), "DATA", &image->data,
 155                                     IWLAGN_RTC_DATA_LOWER_BOUND);
 156 }
 157
 158 /*
 159  *  Calibration
 160  */
 161 static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
 162 {
 163         struct iwl_calib_xtal_freq_cmd cmd;
 164         __le16 *xtal_calib =
 165                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);
 166
 167         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
 168         cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 169         cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 170         return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
 171                              (u8 *)&cmd, sizeof(cmd));
 172 }
 173
 174 static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
 175 {
 176         struct iwl_calib_temperature_offset_cmd cmd;
 177         __le16 *offset_calib =
 178                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_RAW_TEMPERATURE);
 179
 180         memset(&cmd, 0, sizeof(cmd));
 181         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 182         memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(*offset_calib));
 183         if (!(cmd.radio_sensor_offset))
 184                 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
 185
 186         IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 187                         le16_to_cpu(cmd.radio_sensor_offset));
 188         return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
 189                              (u8 *)&cmd, sizeof(cmd));
 190 }
 191
 192 static int iwlagn_set_temperature_offset_calib_v2(struct iwl_priv *priv)
 193 {
 194         struct iwl_calib_temperature_offset_v2_cmd cmd;
 195         __le16 *offset_calib_high = (__le16 *)iwl_eeprom_query_addr(priv,
 196                                      EEPROM_KELVIN_TEMPERATURE);
 197         __le16 *offset_calib_low =
 198                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_RAW_TEMPERATURE);
 199         struct iwl_eeprom_calib_hdr *hdr;
 200
 201         memset(&cmd, 0, sizeof(cmd));
 202         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 203         hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv,
 204                                                         EEPROM_CALIB_ALL);
 205         memcpy(&cmd.radio_sensor_offset_high, offset_calib_high,
 206                 sizeof(*offset_calib_high));
 207         memcpy(&cmd.radio_sensor_offset_low, offset_calib_low,
 208                 sizeof(*offset_calib_low));
 209         if (!(cmd.radio_sensor_offset_low)) {
 210                 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
 211                 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
 212                 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
 213         }
 214         memcpy(&cmd.burntVoltageRef, &hdr->voltage,
 215                 sizeof(hdr->voltage));
 216
 217         IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
 218                         le16_to_cpu(cmd.radio_sensor_offset_high));
 219         IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
 220                         le16_to_cpu(cmd.radio_sensor_offset_low));
 221         IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
 222                         le16_to_cpu(cmd.burntVoltageRef));
 223
 224         return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
 225                              (u8 *)&cmd, sizeof(cmd));
 226 }
 227
 228 static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
 229 {
 230         struct iwl_calib_cfg_cmd calib_cfg_cmd;
 231         struct iwl_host_cmd cmd = {
 232                 .id = CALIBRATION_CFG_CMD,
 233                 .len = { sizeof(struct iwl_calib_cfg_cmd), },
 234                 .data = { &calib_cfg_cmd, },
 235         };
 236
 237         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 238         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 239         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 240         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 241         calib_cfg_cmd.ucd_calib_cfg.flags =
 242                 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 243
 244         return iwl_trans_send_cmd(trans(priv), &cmd);
 245 }
 246
 247 int iwlagn_rx_calib_result(struct iwl_priv *priv,
 248                             struct iwl_rx_mem_buffer *rxb,
 249                             struct iwl_device_cmd *cmd)
 250 {
 251         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 252         struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
 253         int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 254         int index;
 255
 256         /* reduce the size of the length field itself */
 257         len -= 4;
 258
 259         /* Define the order in which the results will be sent to the runtime
 260          * uCode. iwl_send_calib_results sends them in a row according to
 261          * their index. We sort them here
 262          */
 263         switch (hdr->op_code) {
 264         case IWL_PHY_CALIBRATE_DC_CMD:
 265                 index = IWL_CALIB_DC;
 266                 break;
 267         case IWL_PHY_CALIBRATE_LO_CMD:
 268                 index = IWL_CALIB_LO;
 269                 break;
 270         case IWL_PHY_CALIBRATE_TX_IQ_CMD:
 271                 index = IWL_CALIB_TX_IQ;
 272                 break;
 273         case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
 274                 index = IWL_CALIB_TX_IQ_PERD;
 275                 break;
 276         case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
 277                 index = IWL_CALIB_BASE_BAND;
 278                 break;
 279         default:
 280                 IWL_ERR(priv, "Unknown calibration notification %d\n",
 281                           hdr->op_code);
 282                 return -1;
 283         }
 284         iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
 285         return 0;
 286 }
 287
 288 int iwlagn_init_alive_start(struct iwl_priv *priv)
 289 {
 290         int ret;
 291
 292         if (priv->cfg->bt_params &&
 293             priv->cfg->bt_params->advanced_bt_coexist) {
 294                 /*
 295                  * Tell uCode we are ready to perform calibration
 296                  * need to perform this before any calibration
 297                  * no need to close the envlope since we are going
 298                  * to load the runtime uCode later.
 299                  */
 300                 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 301                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 302                 if (ret)
 303                         return ret;
 304
 305         }
 306
 307         ret = iwlagn_send_calib_cfg(priv);
 308         if (ret)
 309                 return ret;
 310
 311         /**
 312          * temperature offset calibration is only needed for runtime ucode,
 313          * so prepare the value now.
 314          */
 315         if (priv->cfg->need_temp_offset_calib) {
 316                 if (priv->cfg->temp_offset_v2)
 317                         return iwlagn_set_temperature_offset_calib_v2(priv);
 318                 else
 319                         return iwlagn_set_temperature_offset_calib(priv);
 320         }
 321
 322         return 0;
 323 }
 324
 325 static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
 326 {
 327         struct iwl_wimax_coex_cmd coex_cmd;
 328
 329         if (priv->cfg->base_params->support_wimax_coexist) {
 330                 /* UnMask wake up src at associated sleep */
 331                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 332
 333                 /* UnMask wake up src at unassociated sleep */
 334                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 335                 memcpy(coex_cmd.sta_prio, cu_priorities,
 336                         sizeof(struct iwl_wimax_coex_event_entry) *
 337                          COEX_NUM_OF_EVENTS);
 338
 339                 /* enabling the coexistence feature */
 340                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 341
 342                 /* enabling the priorities tables */
 343                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 344         } else {
 345                 /* coexistence is disabled */
 346                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 347         }
 348         return iwl_trans_send_cmd_pdu(trans(priv),
 349                                 COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
 350                                 sizeof(coex_cmd), &coex_cmd);
 351 }
 352
 353 static const u8 iwlagn_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 354         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 355                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 356         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 357                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 358         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 359                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 360         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 361                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 362         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 363                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 364         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 365                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 366         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 367                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 368         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 369                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 370         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 371                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 372         0, 0, 0, 0, 0, 0, 0
 373 };
 374
 375 void iwlagn_send_prio_tbl(struct iwl_priv *priv)
 376 {
 377         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 378
 379         memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl,
 380                 sizeof(iwlagn_bt_prio_tbl));
 381         if (iwl_trans_send_cmd_pdu(trans(priv),
 382                                 REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
 383                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 384                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 385 }
 386
 387 int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 388 {
 389         struct iwl_bt_coex_prot_env_cmd env_cmd;
 390         int ret;
 391
 392         env_cmd.action = action;
 393         env_cmd.type = type;
 394         ret = iwl_trans_send_cmd_pdu(trans(priv),
 395                                REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
 396                                sizeof(env_cmd), &env_cmd);
 397         if (ret)
 398                 IWL_ERR(priv, "failed to send BT env command\n");
 399         return ret;
 400 }
 401
 402
 403 static int iwlagn_alive_notify(struct iwl_priv *priv)
 404 {
 405         struct iwl_rxon_context *ctx;
 406         int ret;
 407
 408         if (!priv->tx_cmd_pool)
 409                 priv->tx_cmd_pool =
 410                         kmem_cache_create("iwlagn_dev_cmd",
 411                                           sizeof(struct iwl_device_cmd),
 412                                           sizeof(void *), 0, NULL);
 413
 414         if (!priv->tx_cmd_pool)
 415                 return -ENOMEM;
 416
 417         iwl_trans_tx_start(trans(priv));
 418         for_each_context(priv, ctx)
 419                 ctx->last_tx_rejected = false;
 420
 421         ret = iwlagn_send_wimax_coex(priv);
 422         if (ret)
 423                 return ret;
 424
 425         ret = iwlagn_set_Xtal_calib(priv);
 426         if (ret)
 427                 return ret;
 428
 429         return iwl_send_calib_results(priv);
 430 }
 431
 432
 433 /**
 434  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 435  *   using sample data 100 bytes apart.  If these sample points are good,
 436  *   it's a pretty good bet that everything between them is good, too.
 437  */
 438 static int iwl_verify_inst_sparse(struct iwl_priv *priv,
 439                                       struct fw_desc *fw_desc)
 440 {
 441         __le32 *image = (__le32 *)fw_desc->v_addr;
 442         u32 len = fw_desc->len;
 443         u32 val;
 444         u32 i;
 445
 446         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 447
 448         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 449                 /* read data comes through single port, auto-incr addr */
 450                 /* NOTE: Use the debugless read so we don't flood kernel log
 451                  * if IWL_DL_IO is set */
 452                 iwl_write_direct32(bus(priv), HBUS_TARG_MEM_RADDR,
 453                         i + IWLAGN_RTC_INST_LOWER_BOUND);
 454                 val = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
 455                 if (val != le32_to_cpu(*image))
 456                         return -EIO;
 457         }
 458
 459         return 0;
 460 }
 461
 462 static void iwl_print_mismatch_inst(struct iwl_priv *priv,
 463                                     struct fw_desc *fw_desc)
 464 {
 465         __le32 *image = (__le32 *)fw_desc->v_addr;
 466         u32 len = fw_desc->len;
 467         u32 val;
 468         u32 offs;
 469         int errors = 0;
 470
 471         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 472
 473         iwl_write_direct32(bus(priv), HBUS_TARG_MEM_RADDR,
 474                            IWLAGN_RTC_INST_LOWER_BOUND);
 475
 476         for (offs = 0;
 477              offs < len && errors < 20;
 478              offs += sizeof(u32), image++) {
 479                 /* read data comes through single port, auto-incr addr */
 480                 val = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
 481                 if (val != le32_to_cpu(*image)) {
 482                         IWL_ERR(priv, "uCode INST section at "
 483                                 "offset 0x%x, is 0x%x, s/b 0x%x\n",
 484                                 offs, val, le32_to_cpu(*image));
 485                         errors++;
 486                 }
 487         }
 488 }
 489
 490 /**
 491  * iwl_verify_ucode - determine which instruction image is in SRAM,
 492  *    and verify its contents
 493  */
 494 static int iwl_verify_ucode(struct iwl_priv *priv, struct fw_img *img)
 495 {
 496         if (!iwl_verify_inst_sparse(priv, &img->code)) {
 497                 IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
 498                 return 0;
 499         }
 500
 501         IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 502
 503         iwl_print_mismatch_inst(priv, &img->code);
 504         return -EIO;
 505 }
 506
 507 struct iwlagn_alive_data {
 508         bool valid;
 509         u8 subtype;
 510 };
 511
 512 static void iwlagn_alive_fn(struct iwl_priv *priv,
 513                             struct iwl_rx_packet *pkt,
 514                             void *data)
 515 {
 516         struct iwlagn_alive_data *alive_data = data;
 517         struct iwl_alive_resp *palive;
 518
 519         palive = &pkt->u.alive_frame;
 520
 521         IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 522                        "0x%01X 0x%01X\n",
 523                        palive->is_valid, palive->ver_type,
 524                        palive->ver_subtype);
 525
 526         priv->device_pointers.error_event_table =
 527                 le32_to_cpu(palive->error_event_table_ptr);
 528         priv->device_pointers.log_event_table =
 529                 le32_to_cpu(palive->log_event_table_ptr);
 530
 531         alive_data->subtype = palive->ver_subtype;
 532         alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 533 }
 534
 535 #define UCODE_ALIVE_TIMEOUT     HZ
 536 #define UCODE_CALIB_TIMEOUT     (2*HZ)
 537
 538 int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
 539                                  enum iwlagn_ucode_type ucode_type)
 540 {
 541         struct iwl_notification_wait alive_wait;
 542         struct iwlagn_alive_data alive_data;
 543         int ret;
 544         enum iwlagn_ucode_type old_type;
 545         struct fw_img *image = iwl_get_ucode_image(priv, ucode_type);
 546
 547         if (!image) {
 548                 IWL_ERR(priv, "Invalid ucode requested (%d)\n", ucode_type);
 549                 return -EINVAL;
 550         }
 551
 552         ret = iwl_trans_start_device(trans(priv));
 553         if (ret)
 554                 return ret;
 555
 556         iwlagn_init_notification_wait(priv, &alive_wait, REPLY_ALIVE,
 557                                       iwlagn_alive_fn, &alive_data);
 558
 559         old_type = priv->ucode_type;
 560         priv->ucode_type = ucode_type;
 561
 562         ret = iwlagn_load_given_ucode(priv, image);
 563         if (ret) {
 564                 priv->ucode_type = old_type;
 565                 iwlagn_remove_notification(priv, &alive_wait);
 566                 return ret;
 567         }
 568
 569         iwl_trans_kick_nic(trans(priv));
 570
 571         /*
 572          * Some things may run in the background now, but we
 573          * just wait for the ALIVE notification here.
 574          */
 575         ret = iwlagn_wait_notification(priv, &alive_wait, UCODE_ALIVE_TIMEOUT);
 576         if (ret) {
 577                 priv->ucode_type = old_type;
 578                 return ret;
 579         }
 580
 581         if (!alive_data.valid) {
 582                 IWL_ERR(priv, "Loaded ucode is not valid!\n");
 583                 priv->ucode_type = old_type;
 584                 return -EIO;
 585         }
 586
 587         /*
 588          * This step takes a long time (60-80ms!!) and
 589          * WoWLAN image should be loaded quickly, so
 590          * skip it for WoWLAN.
 591          */
 592         if (ucode_type != IWL_UCODE_WOWLAN) {
 593                 ret = iwl_verify_ucode(priv, image);
 594                 if (ret) {
 595                         priv->ucode_type = old_type;
 596                         return ret;
 597                 }
 598
 599                 /* delay a bit to give rfkill time to run */
 600                 msleep(5);
 601         }
 602
 603         ret = iwlagn_alive_notify(priv);
 604         if (ret) {
 605                 IWL_WARN(priv,
 606                         "Could not complete ALIVE transition: %d\n", ret);
 607                 priv->ucode_type = old_type;
 608                 return ret;
 609         }
 610
 611         return 0;
 612 }
 613
 614 int iwlagn_run_init_ucode(struct iwl_priv *priv)
 615 {
 616         struct iwl_notification_wait calib_wait;
 617         int ret;
 618
 619         lockdep_assert_held(&priv->shrd->mutex);
 620
 621         /* No init ucode required? Curious, but maybe ok */
 622         if (!priv->ucode_init.code.len)
 623                 return 0;
 624
 625         if (priv->ucode_type != IWL_UCODE_NONE)
 626                 return 0;
 627
 628         iwlagn_init_notification_wait(priv, &calib_wait,
 629                                       CALIBRATION_COMPLETE_NOTIFICATION,
 630                                       NULL, NULL);
 631
 632         /* Will also start the device */
 633         ret = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 634         if (ret)
 635                 goto error;
 636
 637         ret = iwlagn_init_alive_start(priv);
 638         if (ret)
 639                 goto error;
 640
 641         /*
 642          * Some things may run in the background now, but we
 643          * just wait for the calibration complete notification.
 644          */
 645         ret = iwlagn_wait_notification(priv, &calib_wait, UCODE_CALIB_TIMEOUT);
 646
 647         goto out;
 648
 649  error:
 650         iwlagn_remove_notification(priv, &calib_wait);
 651  out:
 652         /* Whatever happened, stop the device */
 653         iwl_trans_stop_device(trans(priv));
 654         return ret;
 655 }