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
  44 #define IWL_AC_UNSET -1
  45
  46 struct queue_to_fifo_ac {
  47         s8 fifo, ac;
  48 };
  49
  50 static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = {
  51         { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
  52         { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
  53         { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
  54         { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
  55         { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
  56         { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
  57         { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
  58         { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
  59         { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
  60         { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
  61 };
  62
  63 static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = {
  64         { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
  65         { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
  66         { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
  67         { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
  68         { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, },
  69         { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, },
  70         { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, },
  71         { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, },
  72         { IWL_TX_FIFO_BE_IPAN, 2, },
  73         { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
  74 };
  75
  76 static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
  77         {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
  78          0, COEX_UNASSOC_IDLE_FLAGS},
  79         {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
  80          0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
  81         {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
  82          0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
  83         {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
  84          0, COEX_CALIBRATION_FLAGS},
  85         {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
  86          0, COEX_PERIODIC_CALIBRATION_FLAGS},
  87         {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
  88          0, COEX_CONNECTION_ESTAB_FLAGS},
  89         {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
  90          0, COEX_ASSOCIATED_IDLE_FLAGS},
  91         {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
  92          0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
  93         {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
  94          0, COEX_ASSOC_AUTO_SCAN_FLAGS},
  95         {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
  96          0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
  97         {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
  98         {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
  99         {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
 100          0, COEX_STAND_ALONE_DEBUG_FLAGS},
 101         {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
 102          0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 103         {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
 104         {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
 105 };
 106
 107 /*
 108  * ucode
 109  */
 110 static int iwlagn_load_section(struct iwl_priv *priv, const char *name,
 111                                 struct fw_desc *image, u32 dst_addr)
 112 {
 113         dma_addr_t phy_addr = image->p_addr;
 114         u32 byte_cnt = image->len;
 115         int ret;
 116
 117         priv->ucode_write_complete = 0;
 118
 119         iwl_write_direct32(priv,
 120                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 121                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
 122
 123         iwl_write_direct32(priv,
 124                 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
 125
 126         iwl_write_direct32(priv,
 127                 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
 128                 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
 129
 130         iwl_write_direct32(priv,
 131                 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
 132                 (iwl_get_dma_hi_addr(phy_addr)
 133                         << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt);
 134
 135         iwl_write_direct32(priv,
 136                 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
 137                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
 138                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
 139                 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
 140
 141         iwl_write_direct32(priv,
 142                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 143                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE       |
 144                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE    |
 145                 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
 146
 147         IWL_DEBUG_FW(priv, "%s uCode section being loaded...\n", name);
 148         ret = wait_event_interruptible_timeout(priv->wait_command_queue,
 149                                         priv->ucode_write_complete, 5 * HZ);
 150         if (ret == -ERESTARTSYS) {
 151                 IWL_ERR(priv, "Could not load the %s uCode section due "
 152                         "to interrupt\n", name);
 153                 return ret;
 154         }
 155         if (!ret) {
 156                 IWL_ERR(priv, "Could not load the %s uCode section\n",
 157                         name);
 158                 return -ETIMEDOUT;
 159         }
 160
 161         return 0;
 162 }
 163
 164 static int iwlagn_load_given_ucode(struct iwl_priv *priv,
 165                                    struct fw_img *image)
 166 {
 167         int ret = 0;
 168
 169         ret = iwlagn_load_section(priv, "INST", &image->code,
 170                                    IWLAGN_RTC_INST_LOWER_BOUND);
 171         if (ret)
 172                 return ret;
 173
 174         return iwlagn_load_section(priv, "DATA", &image->data,
 175                                     IWLAGN_RTC_DATA_LOWER_BOUND);
 176 }
 177
 178 /*
 179  *  Calibration
 180  */
 181 static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
 182 {
 183         struct iwl_calib_xtal_freq_cmd cmd;
 184         __le16 *xtal_calib =
 185                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);
 186
 187         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
 188         cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 189         cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 190         return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
 191                              (u8 *)&cmd, sizeof(cmd));
 192 }
 193
 194 static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
 195 {
 196         struct iwl_calib_temperature_offset_cmd cmd;
 197         __le16 *offset_calib =
 198                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_TEMPERATURE);
 199
 200         memset(&cmd, 0, sizeof(cmd));
 201         iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
 202         cmd.radio_sensor_offset = le16_to_cpu(offset_calib[1]);
 203         if (!(cmd.radio_sensor_offset))
 204                 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
 205
 206         IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 207                         cmd.radio_sensor_offset);
 208         return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
 209                              (u8 *)&cmd, sizeof(cmd));
 210 }
 211
 212 static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
 213 {
 214         struct iwl_calib_cfg_cmd calib_cfg_cmd;
 215         struct iwl_host_cmd cmd = {
 216                 .id = CALIBRATION_CFG_CMD,
 217                 .len = { sizeof(struct iwl_calib_cfg_cmd), },
 218                 .data = { &calib_cfg_cmd, },
 219         };
 220
 221         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 222         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 223         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 224         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 225         calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL;
 226
 227         return trans_send_cmd(priv, &cmd);
 228 }
 229
 230 void iwlagn_rx_calib_result(struct iwl_priv *priv,
 231                              struct iwl_rx_mem_buffer *rxb)
 232 {
 233         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 234         struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
 235         int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 236         int index;
 237
 238         /* reduce the size of the length field itself */
 239         len -= 4;
 240
 241         /* Define the order in which the results will be sent to the runtime
 242          * uCode. iwl_send_calib_results sends them in a row according to
 243          * their index. We sort them here
 244          */
 245         switch (hdr->op_code) {
 246         case IWL_PHY_CALIBRATE_DC_CMD:
 247                 index = IWL_CALIB_DC;
 248                 break;
 249         case IWL_PHY_CALIBRATE_LO_CMD:
 250                 index = IWL_CALIB_LO;
 251                 break;
 252         case IWL_PHY_CALIBRATE_TX_IQ_CMD:
 253                 index = IWL_CALIB_TX_IQ;
 254                 break;
 255         case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
 256                 index = IWL_CALIB_TX_IQ_PERD;
 257                 break;
 258         case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
 259                 index = IWL_CALIB_BASE_BAND;
 260                 break;
 261         default:
 262                 IWL_ERR(priv, "Unknown calibration notification %d\n",
 263                           hdr->op_code);
 264                 return;
 265         }
 266         iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
 267 }
 268
 269 int iwlagn_init_alive_start(struct iwl_priv *priv)
 270 {
 271         int ret;
 272
 273         if (priv->cfg->bt_params &&
 274             priv->cfg->bt_params->advanced_bt_coexist) {
 275                 /*
 276                  * Tell uCode we are ready to perform calibration
 277                  * need to perform this before any calibration
 278                  * no need to close the envlope since we are going
 279                  * to load the runtime uCode later.
 280                  */
 281                 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 282                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 283                 if (ret)
 284                         return ret;
 285
 286         }
 287
 288         ret = iwlagn_send_calib_cfg(priv);
 289         if (ret)
 290                 return ret;
 291
 292         /**
 293          * temperature offset calibration is only needed for runtime ucode,
 294          * so prepare the value now.
 295          */
 296         if (priv->cfg->need_temp_offset_calib)
 297                 return iwlagn_set_temperature_offset_calib(priv);
 298
 299         return 0;
 300 }
 301
 302 static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
 303 {
 304         struct iwl_wimax_coex_cmd coex_cmd;
 305
 306         if (priv->cfg->base_params->support_wimax_coexist) {
 307                 /* UnMask wake up src at associated sleep */
 308                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 309
 310                 /* UnMask wake up src at unassociated sleep */
 311                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 312                 memcpy(coex_cmd.sta_prio, cu_priorities,
 313                         sizeof(struct iwl_wimax_coex_event_entry) *
 314                          COEX_NUM_OF_EVENTS);
 315
 316                 /* enabling the coexistence feature */
 317                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 318
 319                 /* enabling the priorities tables */
 320                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 321         } else {
 322                 /* coexistence is disabled */
 323                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 324         }
 325         return trans_send_cmd_pdu(priv,
 326                                 COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
 327                                 sizeof(coex_cmd), &coex_cmd);
 328 }
 329
 330 static const u8 iwlagn_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 331         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 332                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 333         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 334                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 335         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 336                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 337         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 338                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 339         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 340                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 341         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 342                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 343         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 344                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 345         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 346                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 347         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 348                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 349         0, 0, 0, 0, 0, 0, 0
 350 };
 351
 352 void iwlagn_send_prio_tbl(struct iwl_priv *priv)
 353 {
 354         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 355
 356         memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl,
 357                 sizeof(iwlagn_bt_prio_tbl));
 358         if (trans_send_cmd_pdu(priv,
 359                                 REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
 360                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 361                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 362 }
 363
 364 int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 365 {
 366         struct iwl_bt_coex_prot_env_cmd env_cmd;
 367         int ret;
 368
 369         env_cmd.action = action;
 370         env_cmd.type = type;
 371         ret = trans_send_cmd_pdu(priv,
 372                                REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
 373                                sizeof(env_cmd), &env_cmd);
 374         if (ret)
 375                 IWL_ERR(priv, "failed to send BT env command\n");
 376         return ret;
 377 }
 378
 379
 380 static int iwlagn_alive_notify(struct iwl_priv *priv)
 381 {
 382         const struct queue_to_fifo_ac *queue_to_fifo;
 383         struct iwl_rxon_context *ctx;
 384         u32 a;
 385         unsigned long flags;
 386         int i, chan;
 387         u32 reg_val;
 388         int ret;
 389
 390         spin_lock_irqsave(&priv->lock, flags);
 391
 392         priv->scd_base_addr = iwl_read_prph(priv, IWLAGN_SCD_SRAM_BASE_ADDR);
 393         a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND;
 394         /* reset conext data memory */
 395         for (; a < priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND;
 396                 a += 4)
 397                 iwl_write_targ_mem(priv, a, 0);
 398         /* reset tx status memory */
 399         for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND;
 400                 a += 4)
 401                 iwl_write_targ_mem(priv, a, 0);
 402         for (; a < priv->scd_base_addr +
 403                IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4)
 404                 iwl_write_targ_mem(priv, a, 0);
 405
 406         iwl_write_prph(priv, IWLAGN_SCD_DRAM_BASE_ADDR,
 407                        priv->scd_bc_tbls.dma >> 10);
 408
 409         /* Enable DMA channel */
 410         for (chan = 0; chan < FH_TCSR_CHNL_NUM ; chan++)
 411                 iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan),
 412                                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
 413                                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
 414
 415         /* Update FH chicken bits */
 416         reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
 417         iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
 418                            reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
 419
 420         iwl_write_prph(priv, IWLAGN_SCD_QUEUECHAIN_SEL,
 421                 IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv));
 422         iwl_write_prph(priv, IWLAGN_SCD_AGGR_SEL, 0);
 423
 424         /* initiate the queues */
 425         for (i = 0; i < priv->hw_params.max_txq_num; i++) {
 426                 iwl_write_prph(priv, IWLAGN_SCD_QUEUE_RDPTR(i), 0);
 427                 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
 428                 iwl_write_targ_mem(priv, priv->scd_base_addr +
 429                                 IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
 430                 iwl_write_targ_mem(priv, priv->scd_base_addr +
 431                                 IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i) +
 432                                 sizeof(u32),
 433                                 ((SCD_WIN_SIZE <<
 434                                 IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
 435                                 IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
 436                                 ((SCD_FRAME_LIMIT <<
 437                                 IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
 438                                 IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
 439         }
 440
 441         iwl_write_prph(priv, IWLAGN_SCD_INTERRUPT_MASK,
 442                         IWL_MASK(0, priv->hw_params.max_txq_num));
 443
 444         /* Activate all Tx DMA/FIFO channels */
 445         iwlagn_txq_set_sched(priv, IWL_MASK(0, 7));
 446
 447         /* map queues to FIFOs */
 448         if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))
 449                 queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo;
 450         else
 451                 queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
 452
 453         iwlagn_set_wr_ptrs(priv, priv->cmd_queue, 0);
 454
 455         /* make sure all queue are not stopped */
 456         memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
 457         for (i = 0; i < 4; i++)
 458                 atomic_set(&priv->queue_stop_count[i], 0);
 459         for_each_context(priv, ctx)
 460                 ctx->last_tx_rejected = false;
 461
 462         /* reset to 0 to enable all the queue first */
 463         priv->txq_ctx_active_msk = 0;
 464
 465         BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != 10);
 466         BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != 10);
 467
 468         for (i = 0; i < 10; i++) {
 469                 int fifo = queue_to_fifo[i].fifo;
 470                 int ac = queue_to_fifo[i].ac;
 471
 472                 iwl_txq_ctx_activate(priv, i);
 473
 474                 if (fifo == IWL_TX_FIFO_UNUSED)
 475                         continue;
 476
 477                 if (ac != IWL_AC_UNSET)
 478                         iwl_set_swq_id(&priv->txq[i], ac, i);
 479                 iwlagn_tx_queue_set_status(priv, &priv->txq[i], fifo, 0);
 480         }
 481
 482         spin_unlock_irqrestore(&priv->lock, flags);
 483
 484         /* Enable L1-Active */
 485         iwl_clear_bits_prph(priv, APMG_PCIDEV_STT_REG,
 486                           APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
 487
 488         ret = iwlagn_send_wimax_coex(priv);
 489         if (ret)
 490                 return ret;
 491
 492         ret = iwlagn_set_Xtal_calib(priv);
 493         if (ret)
 494                 return ret;
 495
 496         return iwl_send_calib_results(priv);
 497 }
 498
 499
 500 /**
 501  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 502  *   using sample data 100 bytes apart.  If these sample points are good,
 503  *   it's a pretty good bet that everything between them is good, too.
 504  */
 505 static int iwlcore_verify_inst_sparse(struct iwl_priv *priv,
 506                                       struct fw_desc *fw_desc)
 507 {
 508         __le32 *image = (__le32 *)fw_desc->v_addr;
 509         u32 len = fw_desc->len;
 510         u32 val;
 511         u32 i;
 512
 513         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 514
 515         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 516                 /* read data comes through single port, auto-incr addr */
 517                 /* NOTE: Use the debugless read so we don't flood kernel log
 518                  * if IWL_DL_IO is set */
 519                 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
 520                         i + IWLAGN_RTC_INST_LOWER_BOUND);
 521                 val = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
 522                 if (val != le32_to_cpu(*image))
 523                         return -EIO;
 524         }
 525
 526         return 0;
 527 }
 528
 529 static void iwl_print_mismatch_inst(struct iwl_priv *priv,
 530                                     struct fw_desc *fw_desc)
 531 {
 532         __le32 *image = (__le32 *)fw_desc->v_addr;
 533         u32 len = fw_desc->len;
 534         u32 val;
 535         u32 offs;
 536         int errors = 0;
 537
 538         IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
 539
 540         iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
 541                            IWLAGN_RTC_INST_LOWER_BOUND);
 542
 543         for (offs = 0;
 544              offs < len && errors < 20;
 545              offs += sizeof(u32), image++) {
 546                 /* read data comes through single port, auto-incr addr */
 547                 val = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
 548                 if (val != le32_to_cpu(*image)) {
 549                         IWL_ERR(priv, "uCode INST section at "
 550                                 "offset 0x%x, is 0x%x, s/b 0x%x\n",
 551                                 offs, val, le32_to_cpu(*image));
 552                         errors++;
 553                 }
 554         }
 555 }
 556
 557 /**
 558  * iwl_verify_ucode - determine which instruction image is in SRAM,
 559  *    and verify its contents
 560  */
 561 static int iwl_verify_ucode(struct iwl_priv *priv, struct fw_img *img)
 562 {
 563         if (!iwlcore_verify_inst_sparse(priv, &img->code)) {
 564                 IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
 565                 return 0;
 566         }
 567
 568         IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 569
 570         iwl_print_mismatch_inst(priv, &img->code);
 571         return -EIO;
 572 }
 573
 574 struct iwlagn_alive_data {
 575         bool valid;
 576         u8 subtype;
 577 };
 578
 579 static void iwlagn_alive_fn(struct iwl_priv *priv,
 580                             struct iwl_rx_packet *pkt,
 581                             void *data)
 582 {
 583         struct iwlagn_alive_data *alive_data = data;
 584         struct iwl_alive_resp *palive;
 585
 586         palive = &pkt->u.alive_frame;
 587
 588         IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 589                        "0x%01X 0x%01X\n",
 590                        palive->is_valid, palive->ver_type,
 591                        palive->ver_subtype);
 592
 593         priv->device_pointers.error_event_table =
 594                 le32_to_cpu(palive->error_event_table_ptr);
 595         priv->device_pointers.log_event_table =
 596                 le32_to_cpu(palive->log_event_table_ptr);
 597
 598         alive_data->subtype = palive->ver_subtype;
 599         alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 600 }
 601
 602 #define UCODE_ALIVE_TIMEOUT     HZ
 603 #define UCODE_CALIB_TIMEOUT     (2*HZ)
 604
 605 int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
 606                                  struct fw_img *image,
 607                                  enum iwlagn_ucode_type ucode_type)
 608 {
 609         struct iwl_notification_wait alive_wait;
 610         struct iwlagn_alive_data alive_data;
 611         int ret;
 612         enum iwlagn_ucode_type old_type;
 613
 614         ret = iwlagn_start_device(priv);
 615         if (ret)
 616                 return ret;
 617
 618         iwlagn_init_notification_wait(priv, &alive_wait, REPLY_ALIVE,
 619                                       iwlagn_alive_fn, &alive_data);
 620
 621         old_type = priv->ucode_type;
 622         priv->ucode_type = ucode_type;
 623
 624         ret = iwlagn_load_given_ucode(priv, image);
 625         if (ret) {
 626                 priv->ucode_type = old_type;
 627                 iwlagn_remove_notification(priv, &alive_wait);
 628                 return ret;
 629         }
 630
 631         /* Remove all resets to allow NIC to operate */
 632         iwl_write32(priv, CSR_RESET, 0);
 633
 634         /*
 635          * Some things may run in the background now, but we
 636          * just wait for the ALIVE notification here.
 637          */
 638         ret = iwlagn_wait_notification(priv, &alive_wait, UCODE_ALIVE_TIMEOUT);
 639         if (ret) {
 640                 priv->ucode_type = old_type;
 641                 return ret;
 642         }
 643
 644         if (!alive_data.valid) {
 645                 IWL_ERR(priv, "Loaded ucode is not valid!\n");
 646                 priv->ucode_type = old_type;
 647                 return -EIO;
 648         }
 649
 650         ret = iwl_verify_ucode(priv, image);
 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         ret = iwlagn_alive_notify(priv);
 660         if (ret) {
 661                 IWL_WARN(priv,
 662                         "Could not complete ALIVE transition: %d\n", ret);
 663                 priv->ucode_type = old_type;
 664                 return ret;
 665         }
 666
 667         return 0;
 668 }
 669
 670 int iwlagn_run_init_ucode(struct iwl_priv *priv)
 671 {
 672         struct iwl_notification_wait calib_wait;
 673         int ret;
 674
 675         lockdep_assert_held(&priv->mutex);
 676
 677         /* No init ucode required? Curious, but maybe ok */
 678         if (!priv->ucode_init.code.len)
 679                 return 0;
 680
 681         if (priv->ucode_type != IWL_UCODE_NONE)
 682                 return 0;
 683
 684         iwlagn_init_notification_wait(priv, &calib_wait,
 685                                       CALIBRATION_COMPLETE_NOTIFICATION,
 686                                       NULL, NULL);
 687
 688         /* Will also start the device */
 689         ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_init,
 690                                            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         iwlagn_stop_device(priv);
 711         return ret;
 712 }