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 #include <linux/dma-mapping.h>
  35
  36 #include "iwl-dev.h"
  37 #include "iwl-core.h"
  38 #include "iwl-io.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  *
  78  * uCode download functions
  79  *
  80  ******************************************************************************/
  81
  82 static void iwl_free_fw_desc(struct iwl_bus *bus, struct fw_desc *desc)
  83 {
  84         if (desc->v_addr)
  85                 dma_free_coherent(bus->dev, desc->len,
  86                                   desc->v_addr, desc->p_addr);
  87         desc->v_addr = NULL;
  88         desc->len = 0;
  89 }
  90
  91 static void iwl_free_fw_img(struct iwl_bus *bus, struct fw_img *img)
  92 {
  93         iwl_free_fw_desc(bus, &img->code);
  94         iwl_free_fw_desc(bus, &img->data);
  95 }
  96
  97 void iwl_dealloc_ucode(struct iwl_trans *trans)
  98 {
  99         iwl_free_fw_img(bus(trans), &trans->ucode_rt);
 100         iwl_free_fw_img(bus(trans), &trans->ucode_init);
 101         iwl_free_fw_img(bus(trans), &trans->ucode_wowlan);
 102 }
 103
 104 int iwl_alloc_fw_desc(struct iwl_bus *bus, struct fw_desc *desc,
 105                       const void *data, size_t len)
 106 {
 107         if (!len) {
 108                 desc->v_addr = NULL;
 109                 return -EINVAL;
 110         }
 111
 112         desc->v_addr = dma_alloc_coherent(bus->dev, len,
 113                                           &desc->p_addr, GFP_KERNEL);
 114         if (!desc->v_addr)
 115                 return -ENOMEM;
 116
 117         desc->len = len;
 118         memcpy(desc->v_addr, data, len);
 119         return 0;
 120 }
 121
 122 /*
 123  * ucode
 124  */
 125 static int iwlagn_load_section(struct iwl_trans *trans, const char *name,
 126                                 struct fw_desc *image, u32 dst_addr)
 127 {
 128         struct iwl_bus *bus = bus(trans);
 129         dma_addr_t phy_addr = image->p_addr;
 130         u32 byte_cnt = image->len;
 131         int ret;
 132
 133         trans->ucode_write_complete = 0;
 134
 135         iwl_write_direct32(bus,
 136                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 137                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
 138
 139         iwl_write_direct32(bus,
 140                 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
 141
 142         iwl_write_direct32(bus,
 143                 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
 144                 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
 145
 146         iwl_write_direct32(bus,
 147                 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
 148                 (iwl_get_dma_hi_addr(phy_addr)
 149                         << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt);
 150
 151         iwl_write_direct32(bus,
 152                 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
 153                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
 154                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
 155                 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
 156
 157         iwl_write_direct32(bus,
 158                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 159                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE       |
 160                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE    |
 161                 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
 162
 163         IWL_DEBUG_FW(bus, "%s uCode section being loaded...\n", name);
 164         ret = wait_event_timeout(trans->shrd->wait_command_queue,
 165                                  trans->ucode_write_complete, 5 * HZ);
 166         if (!ret) {
 167                 IWL_ERR(trans, "Could not load the %s uCode section\n",
 168                         name);
 169                 return -ETIMEDOUT;
 170         }
 171
 172         return 0;
 173 }
 174
 175 static inline struct fw_img *iwl_get_ucode_image(struct iwl_trans *trans,
 176                                         enum iwl_ucode_type ucode_type)
 177 {
 178         switch (ucode_type) {
 179         case IWL_UCODE_INIT:
 180                 return &trans->ucode_init;
 181         case IWL_UCODE_WOWLAN:
 182                 return &trans->ucode_wowlan;
 183         case IWL_UCODE_REGULAR:
 184                 return &trans->ucode_rt;
 185         case IWL_UCODE_NONE:
 186                 break;
 187         }
 188         return NULL;
 189 }
 190
 191 static int iwlagn_load_given_ucode(struct iwl_trans *trans,
 192                                    enum iwl_ucode_type ucode_type)
 193 {
 194         int ret = 0;
 195         struct fw_img *image = iwl_get_ucode_image(trans, ucode_type);
 196
 197
 198         if (!image) {
 199                 IWL_ERR(trans, "Invalid ucode requested (%d)\n",
 200                         ucode_type);
 201                 return -EINVAL;
 202         }
 203
 204         ret = iwlagn_load_section(trans, "INST", &image->code,
 205                                    IWLAGN_RTC_INST_LOWER_BOUND);
 206         if (ret)
 207                 return ret;
 208
 209         return iwlagn_load_section(trans, "DATA", &image->data,
 210                                     IWLAGN_RTC_DATA_LOWER_BOUND);
 211 }
 212
 213 /*
 214  *  Calibration
 215  */
 216 static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
 217 {
 218         struct iwl_calib_xtal_freq_cmd cmd;
 219         __le16 *xtal_calib =
 220                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);
 221
 222         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
 223         cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 224         cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 225         return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
 226                              (u8 *)&cmd, sizeof(cmd));
 227 }
 228
 229 static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
 230 {
 231         struct iwl_calib_temperature_offset_cmd cmd;
 232         __le16 *offset_calib =
 233                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_RAW_TEMPERATURE);
 234
 235         memset(&cmd, 0, sizeof(cmd));
 236         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 237         memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(*offset_calib));
 238         if (!(cmd.radio_sensor_offset))
 239                 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
 240
 241         IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 242                         le16_to_cpu(cmd.radio_sensor_offset));
 243         return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
 244                              (u8 *)&cmd, sizeof(cmd));
 245 }
 246
 247 static int iwlagn_set_temperature_offset_calib_v2(struct iwl_priv *priv)
 248 {
 249         struct iwl_calib_temperature_offset_v2_cmd cmd;
 250         __le16 *offset_calib_high = (__le16 *)iwl_eeprom_query_addr(priv,
 251                                      EEPROM_KELVIN_TEMPERATURE);
 252         __le16 *offset_calib_low =
 253                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_RAW_TEMPERATURE);
 254         struct iwl_eeprom_calib_hdr *hdr;
 255
 256         memset(&cmd, 0, sizeof(cmd));
 257         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 258         hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv,
 259                                                         EEPROM_CALIB_ALL);
 260         memcpy(&cmd.radio_sensor_offset_high, offset_calib_high,
 261                 sizeof(*offset_calib_high));
 262         memcpy(&cmd.radio_sensor_offset_low, offset_calib_low,
 263                 sizeof(*offset_calib_low));
 264         if (!(cmd.radio_sensor_offset_low)) {
 265                 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
 266                 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
 267                 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
 268         }
 269         memcpy(&cmd.burntVoltageRef, &hdr->voltage,
 270                 sizeof(hdr->voltage));
 271
 272         IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
 273                         le16_to_cpu(cmd.radio_sensor_offset_high));
 274         IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
 275                         le16_to_cpu(cmd.radio_sensor_offset_low));
 276         IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
 277                         le16_to_cpu(cmd.burntVoltageRef));
 278
 279         return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
 280                              (u8 *)&cmd, sizeof(cmd));
 281 }
 282
 283 static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
 284 {
 285         struct iwl_calib_cfg_cmd calib_cfg_cmd;
 286         struct iwl_host_cmd cmd = {
 287                 .id = CALIBRATION_CFG_CMD,
 288                 .len = { sizeof(struct iwl_calib_cfg_cmd), },
 289                 .data = { &calib_cfg_cmd, },
 290         };
 291
 292         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 293         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 294         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 295         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 296         calib_cfg_cmd.ucd_calib_cfg.flags =
 297                 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 298
 299         return iwl_trans_send_cmd(trans(priv), &cmd);
 300 }
 301
 302 int iwlagn_rx_calib_result(struct iwl_priv *priv,
 303                             struct iwl_rx_mem_buffer *rxb,
 304                             struct iwl_device_cmd *cmd)
 305 {
 306         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 307         struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
 308         int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 309         int index;
 310
 311         /* reduce the size of the length field itself */
 312         len -= 4;
 313
 314         /* Define the order in which the results will be sent to the runtime
 315          * uCode. iwl_send_calib_results sends them in a row according to
 316          * their index. We sort them here
 317          */
 318         switch (hdr->op_code) {
 319         case IWL_PHY_CALIBRATE_DC_CMD:
 320                 index = IWL_CALIB_DC;
 321                 break;
 322         case IWL_PHY_CALIBRATE_LO_CMD:
 323                 index = IWL_CALIB_LO;
 324                 break;
 325         case IWL_PHY_CALIBRATE_TX_IQ_CMD:
 326                 index = IWL_CALIB_TX_IQ;
 327                 break;
 328         case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
 329                 index = IWL_CALIB_TX_IQ_PERD;
 330                 break;
 331         case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
 332                 index = IWL_CALIB_BASE_BAND;
 333                 break;
 334         default:
 335                 IWL_ERR(priv, "Unknown calibration notification %d\n",
 336                           hdr->op_code);
 337                 return -1;
 338         }
 339         iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
 340         return 0;
 341 }
 342
 343 int iwlagn_init_alive_start(struct iwl_priv *priv)
 344 {
 345         int ret;
 346
 347         if (priv->cfg->bt_params &&
 348             priv->cfg->bt_params->advanced_bt_coexist) {
 349                 /*
 350                  * Tell uCode we are ready to perform calibration
 351                  * need to perform this before any calibration
 352                  * no need to close the envlope since we are going
 353                  * to load the runtime uCode later.
 354                  */
 355                 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 356                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 357                 if (ret)
 358                         return ret;
 359
 360         }
 361
 362         ret = iwlagn_send_calib_cfg(priv);
 363         if (ret)
 364                 return ret;
 365
 366         /**
 367          * temperature offset calibration is only needed for runtime ucode,
 368          * so prepare the value now.
 369          */
 370         if (priv->cfg->need_temp_offset_calib) {
 371                 if (priv->cfg->temp_offset_v2)
 372                         return iwlagn_set_temperature_offset_calib_v2(priv);
 373                 else
 374                         return iwlagn_set_temperature_offset_calib(priv);
 375         }
 376
 377         return 0;
 378 }
 379
 380 static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
 381 {
 382         struct iwl_wimax_coex_cmd coex_cmd;
 383
 384         if (priv->cfg->base_params->support_wimax_coexist) {
 385                 /* UnMask wake up src at associated sleep */
 386                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 387
 388                 /* UnMask wake up src at unassociated sleep */
 389                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 390                 memcpy(coex_cmd.sta_prio, cu_priorities,
 391                         sizeof(struct iwl_wimax_coex_event_entry) *
 392                          COEX_NUM_OF_EVENTS);
 393
 394                 /* enabling the coexistence feature */
 395                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 396
 397                 /* enabling the priorities tables */
 398                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 399         } else {
 400                 /* coexistence is disabled */
 401                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 402         }
 403         return iwl_trans_send_cmd_pdu(trans(priv),
 404                                 COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
 405                                 sizeof(coex_cmd), &coex_cmd);
 406 }
 407
 408 static const u8 iwlagn_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 409         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 410                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 411         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 412                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 413         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 414                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 415         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 416                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 417         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 418                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 419         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 420                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 421         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 422                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 423         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 424                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 425         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 426                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 427         0, 0, 0, 0, 0, 0, 0
 428 };
 429
 430 void iwlagn_send_prio_tbl(struct iwl_priv *priv)
 431 {
 432         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 433
 434         memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl,
 435                 sizeof(iwlagn_bt_prio_tbl));
 436         if (iwl_trans_send_cmd_pdu(trans(priv),
 437                                 REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
 438                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 439                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 440 }
 441
 442 int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 443 {
 444         struct iwl_bt_coex_prot_env_cmd env_cmd;
 445         int ret;
 446
 447         env_cmd.action = action;
 448         env_cmd.type = type;
 449         ret = iwl_trans_send_cmd_pdu(trans(priv),
 450                                REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
 451                                sizeof(env_cmd), &env_cmd);
 452         if (ret)
 453                 IWL_ERR(priv, "failed to send BT env command\n");
 454         return ret;
 455 }
 456
 457
 458 static int iwlagn_alive_notify(struct iwl_priv *priv)
 459 {
 460         struct iwl_rxon_context *ctx;
 461         int ret;
 462
 463         if (!priv->tx_cmd_pool)
 464                 priv->tx_cmd_pool =
 465                         kmem_cache_create("iwlagn_dev_cmd",
 466                                           sizeof(struct iwl_device_cmd),
 467                                           sizeof(void *), 0, NULL);
 468
 469         if (!priv->tx_cmd_pool)
 470                 return -ENOMEM;
 471
 472         iwl_trans_tx_start(trans(priv));
 473         for_each_context(priv, ctx)
 474                 ctx->last_tx_rejected = false;
 475
 476         ret = iwlagn_send_wimax_coex(priv);
 477         if (ret)
 478                 return ret;
 479
 480         ret = iwlagn_set_Xtal_calib(priv);
 481         if (ret)
 482                 return ret;
 483
 484         return iwl_send_calib_results(priv);
 485 }
 486
 487
 488 /**
 489  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 490  *   using sample data 100 bytes apart.  If these sample points are good,
 491  *   it's a pretty good bet that everything between them is good, too.
 492  */
 493 static int iwl_verify_inst_sparse(struct iwl_bus *bus,
 494                                       struct fw_desc *fw_desc)
 495 {
 496         __le32 *image = (__le32 *)fw_desc->v_addr;
 497         u32 len = fw_desc->len;
 498         u32 val;
 499         u32 i;
 500
 501         IWL_DEBUG_FW(bus, "ucode inst image size is %u\n", len);
 502
 503         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 504                 /* read data comes through single port, auto-incr addr */
 505                 /* NOTE: Use the debugless read so we don't flood kernel log
 506                  * if IWL_DL_IO is set */
 507                 iwl_write_direct32(bus, HBUS_TARG_MEM_RADDR,
 508                         i + IWLAGN_RTC_INST_LOWER_BOUND);
 509                 val = iwl_read32(bus, HBUS_TARG_MEM_RDAT);
 510                 if (val != le32_to_cpu(*image))
 511                         return -EIO;
 512         }
 513
 514         return 0;
 515 }
 516
 517 static void iwl_print_mismatch_inst(struct iwl_bus *bus,
 518                                     struct fw_desc *fw_desc)
 519 {
 520         __le32 *image = (__le32 *)fw_desc->v_addr;
 521         u32 len = fw_desc->len;
 522         u32 val;
 523         u32 offs;
 524         int errors = 0;
 525
 526         IWL_DEBUG_FW(bus, "ucode inst image size is %u\n", len);
 527
 528         iwl_write_direct32(bus, HBUS_TARG_MEM_RADDR,
 529                            IWLAGN_RTC_INST_LOWER_BOUND);
 530
 531         for (offs = 0;
 532              offs < len && errors < 20;
 533              offs += sizeof(u32), image++) {
 534                 /* read data comes through single port, auto-incr addr */
 535                 val = iwl_read32(bus, HBUS_TARG_MEM_RDAT);
 536                 if (val != le32_to_cpu(*image)) {
 537                         IWL_ERR(bus, "uCode INST section at "
 538                                 "offset 0x%x, is 0x%x, s/b 0x%x\n",
 539                                 offs, val, le32_to_cpu(*image));
 540                         errors++;
 541                 }
 542         }
 543 }
 544
 545 /**
 546  * iwl_verify_ucode - determine which instruction image is in SRAM,
 547  *    and verify its contents
 548  */
 549 static int iwl_verify_ucode(struct iwl_trans *trans,
 550                             enum iwl_ucode_type ucode_type)
 551 {
 552         struct fw_img *img = iwl_get_ucode_image(trans, ucode_type);
 553
 554         if (!img) {
 555                 IWL_ERR(trans, "Invalid ucode requested (%d)\n", ucode_type);
 556                 return -EINVAL;
 557         }
 558
 559         if (!iwl_verify_inst_sparse(bus(trans), &img->code)) {
 560                 IWL_DEBUG_FW(trans, "uCode is good in inst SRAM\n");
 561                 return 0;
 562         }
 563
 564         IWL_ERR(trans, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 565
 566         iwl_print_mismatch_inst(bus(trans), &img->code);
 567         return -EIO;
 568 }
 569
 570 struct iwlagn_alive_data {
 571         bool valid;
 572         u8 subtype;
 573 };
 574
 575 static void iwlagn_alive_fn(struct iwl_priv *priv,
 576                             struct iwl_rx_packet *pkt,
 577                             void *data)
 578 {
 579         struct iwlagn_alive_data *alive_data = data;
 580         struct iwl_alive_resp *palive;
 581
 582         palive = &pkt->u.alive_frame;
 583
 584         IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 585                        "0x%01X 0x%01X\n",
 586                        palive->is_valid, palive->ver_type,
 587                        palive->ver_subtype);
 588
 589         priv->device_pointers.error_event_table =
 590                 le32_to_cpu(palive->error_event_table_ptr);
 591         priv->device_pointers.log_event_table =
 592                 le32_to_cpu(palive->log_event_table_ptr);
 593
 594         alive_data->subtype = palive->ver_subtype;
 595         alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 596 }
 597
 598 #define UCODE_ALIVE_TIMEOUT     HZ
 599 #define UCODE_CALIB_TIMEOUT     (2*HZ)
 600
 601 int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
 602                                  enum iwl_ucode_type ucode_type)
 603 {
 604         struct iwl_notification_wait alive_wait;
 605         struct iwlagn_alive_data alive_data;
 606         int ret;
 607         enum iwl_ucode_type old_type;
 608
 609         ret = iwl_trans_start_device(trans(priv));
 610         if (ret)
 611                 return ret;
 612
 613         iwlagn_init_notification_wait(priv, &alive_wait, REPLY_ALIVE,
 614                                       iwlagn_alive_fn, &alive_data);
 615
 616         old_type = priv->ucode_type;
 617         priv->ucode_type = ucode_type;
 618
 619         ret = iwlagn_load_given_ucode(trans(priv), ucode_type);
 620         if (ret) {
 621                 priv->ucode_type = old_type;
 622                 iwlagn_remove_notification(priv, &alive_wait);
 623                 return ret;
 624         }
 625
 626         iwl_trans_kick_nic(trans(priv));
 627
 628         /*
 629          * Some things may run in the background now, but we
 630          * just wait for the ALIVE notification here.
 631          */
 632         ret = iwlagn_wait_notification(priv, &alive_wait, UCODE_ALIVE_TIMEOUT);
 633         if (ret) {
 634                 priv->ucode_type = old_type;
 635                 return ret;
 636         }
 637
 638         if (!alive_data.valid) {
 639                 IWL_ERR(priv, "Loaded ucode is not valid!\n");
 640                 priv->ucode_type = old_type;
 641                 return -EIO;
 642         }
 643
 644         /*
 645          * This step takes a long time (60-80ms!!) and
 646          * WoWLAN image should be loaded quickly, so
 647          * skip it for WoWLAN.
 648          */
 649         if (ucode_type != IWL_UCODE_WOWLAN) {
 650                 ret = iwl_verify_ucode(trans(priv), ucode_type);
 651                 if (ret) {
 652                         priv->ucode_type = old_type;
 653                         return ret;
 654                 }
 655
 656                 /* delay a bit to give rfkill time to run */
 657                 msleep(5);
 658         }
 659
 660         ret = iwlagn_alive_notify(priv);
 661         if (ret) {
 662                 IWL_WARN(priv,
 663                         "Could not complete ALIVE transition: %d\n", ret);
 664                 priv->ucode_type = old_type;
 665                 return ret;
 666         }
 667
 668         return 0;
 669 }
 670
 671 int iwlagn_run_init_ucode(struct iwl_priv *priv)
 672 {
 673         struct iwl_notification_wait calib_wait;
 674         int ret;
 675
 676         lockdep_assert_held(&priv->shrd->mutex);
 677
 678         /* No init ucode required? Curious, but maybe ok */
 679         if (!trans(priv)->ucode_init.code.len)
 680                 return 0;
 681
 682         if (priv->ucode_type != IWL_UCODE_NONE)
 683                 return 0;
 684
 685         iwlagn_init_notification_wait(priv, &calib_wait,
 686                                       CALIBRATION_COMPLETE_NOTIFICATION,
 687                                       NULL, NULL);
 688
 689         /* Will also start the device */
 690         ret = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 691         if (ret)
 692                 goto error;
 693
 694         ret = iwlagn_init_alive_start(priv);
 695         if (ret)
 696                 goto error;
 697
 698         /*
 699          * Some things may run in the background now, but we
 700          * just wait for the calibration complete notification.
 701          */
 702         ret = iwlagn_wait_notification(priv, &calib_wait, UCODE_CALIB_TIMEOUT);
 703
 704         goto out;
 705
 706  error:
 707         iwlagn_remove_notification(priv, &calib_wait);
 708  out:
 709         /* Whatever happened, stop the device */
 710         iwl_trans_stop_device(trans(priv));
 711         return ret;
 712 }