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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2010 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 <[email protected]>
  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
  43 #define IWL_AC_UNSET -1
  44
  45 struct queue_to_fifo_ac {
  46         s8 fifo, ac;
  47 };
  48
  49 static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = {
  50         { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
  51         { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
  52         { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
  53         { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
  54         { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
  55         { IWL_TX_FIFO_UNUSED, 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 };
  61
  62 static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = {
  63         { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
  64         { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
  65         { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
  66         { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
  67         { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, },
  68         { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, },
  69         { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, },
  70         { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, },
  71         { IWL_TX_FIFO_BE_IPAN, 2, },
  72         { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
  73 };
  74
  75 static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
  76         {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
  77          0, COEX_UNASSOC_IDLE_FLAGS},
  78         {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
  79          0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
  80         {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
  81          0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
  82         {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
  83          0, COEX_CALIBRATION_FLAGS},
  84         {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
  85          0, COEX_PERIODIC_CALIBRATION_FLAGS},
  86         {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
  87          0, COEX_CONNECTION_ESTAB_FLAGS},
  88         {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
  89          0, COEX_ASSOCIATED_IDLE_FLAGS},
  90         {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
  91          0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
  92         {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
  93          0, COEX_ASSOC_AUTO_SCAN_FLAGS},
  94         {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
  95          0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
  96         {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
  97         {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
  98         {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
  99          0, COEX_STAND_ALONE_DEBUG_FLAGS},
 100         {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
 101          0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 102         {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
 103         {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
 104 };
 105
 106 /*
 107  * ucode
 108  */
 109 static int iwlagn_load_section(struct iwl_priv *priv, const char *name,
 110                                 struct fw_desc *image, u32 dst_addr)
 111 {
 112         dma_addr_t phy_addr = image->p_addr;
 113         u32 byte_cnt = image->len;
 114         int ret;
 115
 116         priv->ucode_write_complete = 0;
 117
 118         iwl_write_direct32(priv,
 119                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 120                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
 121
 122         iwl_write_direct32(priv,
 123                 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
 124
 125         iwl_write_direct32(priv,
 126                 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
 127                 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
 128
 129         iwl_write_direct32(priv,
 130                 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
 131                 (iwl_get_dma_hi_addr(phy_addr)
 132                         << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt);
 133
 134         iwl_write_direct32(priv,
 135                 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
 136                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
 137                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
 138                 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
 139
 140         iwl_write_direct32(priv,
 141                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 142                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE       |
 143                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE    |
 144                 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
 145
 146         IWL_DEBUG_INFO(priv, "%s uCode section being loaded...\n", name);
 147         ret = wait_event_interruptible_timeout(priv->wait_command_queue,
 148                                         priv->ucode_write_complete, 5 * HZ);
 149         if (ret == -ERESTARTSYS) {
 150                 IWL_ERR(priv, "Could not load the %s uCode section due "
 151                         "to interrupt\n", name);
 152                 return ret;
 153         }
 154         if (!ret) {
 155                 IWL_ERR(priv, "Could not load the %s uCode section\n",
 156                         name);
 157                 return -ETIMEDOUT;
 158         }
 159
 160         return 0;
 161 }
 162
 163 static int iwlagn_load_given_ucode(struct iwl_priv *priv,
 164                 struct fw_desc *inst_image,
 165                 struct fw_desc *data_image)
 166 {
 167         int ret = 0;
 168
 169         ret = iwlagn_load_section(priv, "INST", inst_image,
 170                                    IWLAGN_RTC_INST_LOWER_BOUND);
 171         if (ret)
 172                 return ret;
 173
 174         return iwlagn_load_section(priv, "DATA", data_image,
 175                                     IWLAGN_RTC_DATA_LOWER_BOUND);
 176 }
 177
 178 int iwlagn_load_ucode(struct iwl_priv *priv)
 179 {
 180         int ret = 0;
 181
 182         /* check whether init ucode should be loaded, or rather runtime ucode */
 183         if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) {
 184                 IWL_DEBUG_INFO(priv, "Init ucode found. Loading init ucode...\n");
 185                 ret = iwlagn_load_given_ucode(priv,
 186                         &priv->ucode_init, &priv->ucode_init_data);
 187                 if (!ret) {
 188                         IWL_DEBUG_INFO(priv, "Init ucode load complete.\n");
 189                         priv->ucode_type = UCODE_INIT;
 190                 }
 191         } else {
 192                 IWL_DEBUG_INFO(priv, "Init ucode not found, or already loaded. "
 193                         "Loading runtime ucode...\n");
 194                 ret = iwlagn_load_given_ucode(priv,
 195                         &priv->ucode_code, &priv->ucode_data);
 196                 if (!ret) {
 197                         IWL_DEBUG_INFO(priv, "Runtime ucode load complete.\n");
 198                         priv->ucode_type = UCODE_RT;
 199                 }
 200         }
 201
 202         return ret;
 203 }
 204
 205 /*
 206  *  Calibration
 207  */
 208 static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
 209 {
 210         struct iwl_calib_xtal_freq_cmd cmd;
 211         __le16 *xtal_calib =
 212                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);
 213
 214         cmd.hdr.op_code = IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD;
 215         cmd.hdr.first_group = 0;
 216         cmd.hdr.groups_num = 1;
 217         cmd.hdr.data_valid = 1;
 218         cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
 219         cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
 220         return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
 221                              (u8 *)&cmd, sizeof(cmd));
 222 }
 223
 224 static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
 225 {
 226         struct iwl_calib_temperature_offset_cmd cmd;
 227         __le16 *offset_calib =
 228                 (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_TEMPERATURE);
 229         cmd.hdr.op_code = IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD;
 230         cmd.hdr.first_group = 0;
 231         cmd.hdr.groups_num = 1;
 232         cmd.hdr.data_valid = 1;
 233         cmd.radio_sensor_offset = le16_to_cpu(offset_calib[1]);
 234         if (!(cmd.radio_sensor_offset))
 235                 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
 236         cmd.reserved = 0;
 237         IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
 238                         cmd.radio_sensor_offset);
 239         return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
 240                              (u8 *)&cmd, sizeof(cmd));
 241 }
 242
 243 static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
 244 {
 245         struct iwl_calib_cfg_cmd calib_cfg_cmd;
 246         struct iwl_host_cmd cmd = {
 247                 .id = CALIBRATION_CFG_CMD,
 248                 .len = sizeof(struct iwl_calib_cfg_cmd),
 249                 .data = &calib_cfg_cmd,
 250         };
 251
 252         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 253         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 254         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 255         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 256         calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL;
 257
 258         return iwl_send_cmd(priv, &cmd);
 259 }
 260
 261 void iwlagn_rx_calib_result(struct iwl_priv *priv,
 262                              struct iwl_rx_mem_buffer *rxb)
 263 {
 264         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 265         struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
 266         int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 267         int index;
 268
 269         /* reduce the size of the length field itself */
 270         len -= 4;
 271
 272         /* Define the order in which the results will be sent to the runtime
 273          * uCode. iwl_send_calib_results sends them in a row according to
 274          * their index. We sort them here
 275          */
 276         switch (hdr->op_code) {
 277         case IWL_PHY_CALIBRATE_DC_CMD:
 278                 index = IWL_CALIB_DC;
 279                 break;
 280         case IWL_PHY_CALIBRATE_LO_CMD:
 281                 index = IWL_CALIB_LO;
 282                 break;
 283         case IWL_PHY_CALIBRATE_TX_IQ_CMD:
 284                 index = IWL_CALIB_TX_IQ;
 285                 break;
 286         case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
 287                 index = IWL_CALIB_TX_IQ_PERD;
 288                 break;
 289         case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
 290                 index = IWL_CALIB_BASE_BAND;
 291                 break;
 292         default:
 293                 IWL_ERR(priv, "Unknown calibration notification %d\n",
 294                           hdr->op_code);
 295                 return;
 296         }
 297         iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
 298 }
 299
 300 void iwlagn_rx_calib_complete(struct iwl_priv *priv,
 301                                struct iwl_rx_mem_buffer *rxb)
 302 {
 303         IWL_DEBUG_INFO(priv, "Init. calibration is completed, restarting fw.\n");
 304         queue_work(priv->workqueue, &priv->restart);
 305 }
 306
 307 void iwlagn_init_alive_start(struct iwl_priv *priv)
 308 {
 309         int ret = 0;
 310
 311         /* Check alive response for "valid" sign from uCode */
 312         if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
 313                 /* We had an error bringing up the hardware, so take it
 314                  * all the way back down so we can try again */
 315                 IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n");
 316                 goto restart;
 317         }
 318
 319         /* initialize uCode was loaded... verify inst image.
 320          * This is a paranoid check, because we would not have gotten the
 321          * "initialize" alive if code weren't properly loaded.  */
 322         if (iwl_verify_ucode(priv)) {
 323                 /* Runtime instruction load was bad;
 324                  * take it all the way back down so we can try again */
 325                 IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
 326                 goto restart;
 327         }
 328
 329         ret = priv->cfg->ops->lib->alive_notify(priv);
 330         if (ret) {
 331                 IWL_WARN(priv,
 332                         "Could not complete ALIVE transition: %d\n", ret);
 333                 goto restart;
 334         }
 335
 336         if (priv->cfg->bt_params &&
 337             priv->cfg->bt_params->advanced_bt_coexist) {
 338                 /*
 339                  * Tell uCode we are ready to perform calibration
 340                  * need to perform this before any calibration
 341                  * no need to close the envlope since we are going
 342                  * to load the runtime uCode later.
 343                  */
 344                 iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 345                         BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 346
 347         }
 348         iwlagn_send_calib_cfg(priv);
 349
 350         /**
 351          * temperature offset calibration is only needed for runtime ucode,
 352          * so prepare the value now.
 353          */
 354         if (priv->cfg->need_temp_offset_calib)
 355                 iwlagn_set_temperature_offset_calib(priv);
 356
 357         return;
 358
 359 restart:
 360         /* real restart (first load init_ucode) */
 361         queue_work(priv->workqueue, &priv->restart);
 362 }
 363
 364 static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
 365 {
 366         struct iwl_wimax_coex_cmd coex_cmd;
 367
 368         if (priv->cfg->base_params->support_wimax_coexist) {
 369                 /* UnMask wake up src at associated sleep */
 370                 coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
 371
 372                 /* UnMask wake up src at unassociated sleep */
 373                 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
 374                 memcpy(coex_cmd.sta_prio, cu_priorities,
 375                         sizeof(struct iwl_wimax_coex_event_entry) *
 376                          COEX_NUM_OF_EVENTS);
 377
 378                 /* enabling the coexistence feature */
 379                 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
 380
 381                 /* enabling the priorities tables */
 382                 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
 383         } else {
 384                 /* coexistence is disabled */
 385                 memset(&coex_cmd, 0, sizeof(coex_cmd));
 386         }
 387         return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD,
 388                                 sizeof(coex_cmd), &coex_cmd);
 389 }
 390
 391 static const u8 iwlagn_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 392         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 393                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 394         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 395                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 396         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 397                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 398         ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 399                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 400         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 401                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 402         ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 403                 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 404         ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 405                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 406         ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 407                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 408         ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 409                 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 410         0, 0, 0, 0, 0, 0, 0
 411 };
 412
 413 void iwlagn_send_prio_tbl(struct iwl_priv *priv)
 414 {
 415         struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 416
 417         memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl,
 418                 sizeof(iwlagn_bt_prio_tbl));
 419         if (iwl_send_cmd_pdu(priv, REPLY_BT_COEX_PRIO_TABLE,
 420                                 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 421                 IWL_ERR(priv, "failed to send BT prio tbl command\n");
 422 }
 423
 424 void iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 425 {
 426         struct iwl_bt_coex_prot_env_cmd env_cmd;
 427
 428         env_cmd.action = action;
 429         env_cmd.type = type;
 430         if (iwl_send_cmd_pdu(priv, REPLY_BT_COEX_PROT_ENV,
 431                              sizeof(env_cmd), &env_cmd))
 432                 IWL_ERR(priv, "failed to send BT env command\n");
 433 }
 434
 435
 436 int iwlagn_alive_notify(struct iwl_priv *priv)
 437 {
 438         const struct queue_to_fifo_ac *queue_to_fifo;
 439         u32 a;
 440         unsigned long flags;
 441         int i, chan;
 442         u32 reg_val;
 443
 444         spin_lock_irqsave(&priv->lock, flags);
 445
 446         priv->scd_base_addr = iwl_read_prph(priv, IWLAGN_SCD_SRAM_BASE_ADDR);
 447         a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_DATA_OFFSET;
 448         for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_BITMAP_OFFSET;
 449                 a += 4)
 450                 iwl_write_targ_mem(priv, a, 0);
 451         for (; a < priv->scd_base_addr + IWLAGN_SCD_TRANSLATE_TBL_OFFSET;
 452                 a += 4)
 453                 iwl_write_targ_mem(priv, a, 0);
 454         for (; a < priv->scd_base_addr +
 455                IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4)
 456                 iwl_write_targ_mem(priv, a, 0);
 457
 458         iwl_write_prph(priv, IWLAGN_SCD_DRAM_BASE_ADDR,
 459                        priv->scd_bc_tbls.dma >> 10);
 460
 461         /* Enable DMA channel */
 462         for (chan = 0; chan < FH50_TCSR_CHNL_NUM ; chan++)
 463                 iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan),
 464                                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
 465                                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
 466
 467         /* Update FH chicken bits */
 468         reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
 469         iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
 470                            reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
 471
 472         iwl_write_prph(priv, IWLAGN_SCD_QUEUECHAIN_SEL,
 473                 IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv));
 474         iwl_write_prph(priv, IWLAGN_SCD_AGGR_SEL, 0);
 475
 476         /* initiate the queues */
 477         for (i = 0; i < priv->hw_params.max_txq_num; i++) {
 478                 iwl_write_prph(priv, IWLAGN_SCD_QUEUE_RDPTR(i), 0);
 479                 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
 480                 iwl_write_targ_mem(priv, priv->scd_base_addr +
 481                                 IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
 482                 iwl_write_targ_mem(priv, priv->scd_base_addr +
 483                                 IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i) +
 484                                 sizeof(u32),
 485                                 ((SCD_WIN_SIZE <<
 486                                 IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
 487                                 IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
 488                                 ((SCD_FRAME_LIMIT <<
 489                                 IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
 490                                 IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
 491         }
 492
 493         iwl_write_prph(priv, IWLAGN_SCD_INTERRUPT_MASK,
 494                         IWL_MASK(0, priv->hw_params.max_txq_num));
 495
 496         /* Activate all Tx DMA/FIFO channels */
 497         priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7));
 498
 499         /* map queues to FIFOs */
 500         if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))
 501                 queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo;
 502         else
 503                 queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
 504
 505         iwlagn_set_wr_ptrs(priv, priv->cmd_queue, 0);
 506
 507         /* make sure all queue are not stopped */
 508         memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
 509         for (i = 0; i < 4; i++)
 510                 atomic_set(&priv->queue_stop_count[i], 0);
 511
 512         /* reset to 0 to enable all the queue first */
 513         priv->txq_ctx_active_msk = 0;
 514
 515         BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != 10);
 516         BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != 10);
 517
 518         for (i = 0; i < 10; i++) {
 519                 int fifo = queue_to_fifo[i].fifo;
 520                 int ac = queue_to_fifo[i].ac;
 521
 522                 iwl_txq_ctx_activate(priv, i);
 523
 524                 if (fifo == IWL_TX_FIFO_UNUSED)
 525                         continue;
 526
 527                 if (ac != IWL_AC_UNSET)
 528                         iwl_set_swq_id(&priv->txq[i], ac, i);
 529                 iwlagn_tx_queue_set_status(priv, &priv->txq[i], fifo, 0);
 530         }
 531
 532         spin_unlock_irqrestore(&priv->lock, flags);
 533
 534         /* Enable L1-Active */
 535         iwl_clear_bits_prph(priv, APMG_PCIDEV_STT_REG,
 536                           APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
 537
 538         iwlagn_send_wimax_coex(priv);
 539
 540         iwlagn_set_Xtal_calib(priv);
 541         iwl_send_calib_results(priv);
 542
 543         return 0;
 544 }
 545
 546
 547 /**
 548  * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 549  *   using sample data 100 bytes apart.  If these sample points are good,
 550  *   it's a pretty good bet that everything between them is good, too.
 551  */
 552 static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
 553 {
 554         u32 val;
 555         int ret = 0;
 556         u32 errcnt = 0;
 557         u32 i;
 558
 559         IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
 560
 561         for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
 562                 /* read data comes through single port, auto-incr addr */
 563                 /* NOTE: Use the debugless read so we don't flood kernel log
 564                  * if IWL_DL_IO is set */
 565                 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
 566                         i + IWLAGN_RTC_INST_LOWER_BOUND);
 567                 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
 568                 if (val != le32_to_cpu(*image)) {
 569                         ret = -EIO;
 570                         errcnt++;
 571                         if (errcnt >= 3)
 572                                 break;
 573                 }
 574         }
 575
 576         return ret;
 577 }
 578
 579 /**
 580  * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
 581  *     looking at all data.
 582  */
 583 static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image,
 584                                  u32 len)
 585 {
 586         u32 val;
 587         u32 save_len = len;
 588         int ret = 0;
 589         u32 errcnt;
 590
 591         IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
 592
 593         iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
 594                            IWLAGN_RTC_INST_LOWER_BOUND);
 595
 596         errcnt = 0;
 597         for (; len > 0; len -= sizeof(u32), image++) {
 598                 /* read data comes through single port, auto-incr addr */
 599                 /* NOTE: Use the debugless read so we don't flood kernel log
 600                  * if IWL_DL_IO is set */
 601                 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
 602                 if (val != le32_to_cpu(*image)) {
 603                         IWL_ERR(priv, "uCode INST section is invalid at "
 604                                   "offset 0x%x, is 0x%x, s/b 0x%x\n",
 605                                   save_len - len, val, le32_to_cpu(*image));
 606                         ret = -EIO;
 607                         errcnt++;
 608                         if (errcnt >= 20)
 609                                 break;
 610                 }
 611         }
 612
 613         if (!errcnt)
 614                 IWL_DEBUG_INFO(priv,
 615                     "ucode image in INSTRUCTION memory is good\n");
 616
 617         return ret;
 618 }
 619
 620 /**
 621  * iwl_verify_ucode - determine which instruction image is in SRAM,
 622  *    and verify its contents
 623  */
 624 int iwl_verify_ucode(struct iwl_priv *priv)
 625 {
 626         __le32 *image;
 627         u32 len;
 628         int ret;
 629
 630         /* Try bootstrap */
 631         image = (__le32 *)priv->ucode_boot.v_addr;
 632         len = priv->ucode_boot.len;
 633         ret = iwlcore_verify_inst_sparse(priv, image, len);
 634         if (!ret) {
 635                 IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
 636                 return 0;
 637         }
 638
 639         /* Try initialize */
 640         image = (__le32 *)priv->ucode_init.v_addr;
 641         len = priv->ucode_init.len;
 642         ret = iwlcore_verify_inst_sparse(priv, image, len);
 643         if (!ret) {
 644                 IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
 645                 return 0;
 646         }
 647
 648         /* Try runtime/protocol */
 649         image = (__le32 *)priv->ucode_code.v_addr;
 650         len = priv->ucode_code.len;
 651         ret = iwlcore_verify_inst_sparse(priv, image, len);
 652         if (!ret) {
 653                 IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
 654                 return 0;
 655         }
 656
 657         IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
 658
 659         /* Since nothing seems to match, show first several data entries in
 660          * instruction SRAM, so maybe visual inspection will give a clue.
 661          * Selection of bootstrap image (vs. other images) is arbitrary. */
 662         image = (__le32 *)priv->ucode_boot.v_addr;
 663         len = priv->ucode_boot.len;
 664         ret = iwl_verify_inst_full(priv, image, len);
 665
 666         return ret;
 667 }