linux/drivers/net/wireless/intel/iwlwifi/dvm/ucode.c
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   1/******************************************************************************
   2 *
   3 * GPL LICENSE SUMMARY
   4 *
   5 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
   6 * Copyright(c) 2015 Intel Deutschland GmbH
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of version 2 of the GNU General Public License as
  10 * published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful, but
  13 * WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 * General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  20 * USA
  21 *
  22 * The full GNU General Public License is included in this distribution
  23 * in the file called COPYING.
  24 *
  25 * Contact Information:
  26 *  Intel Linux Wireless <linuxwifi@intel.com>
  27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  28 *
  29 *****************************************************************************/
  30
  31#include <linux/kernel.h>
  32
  33#include "iwl-io.h"
  34#include "iwl-agn-hw.h"
  35#include "iwl-trans.h"
  36#include "iwl-fh.h"
  37#include "iwl-op-mode.h"
  38
  39#include "dev.h"
  40#include "agn.h"
  41#include "calib.h"
  42
  43/******************************************************************************
  44 *
  45 * uCode download functions
  46 *
  47 ******************************************************************************/
  48
  49/*
  50 *  Calibration
  51 */
  52static int iwl_set_Xtal_calib(struct iwl_priv *priv)
  53{
  54        struct iwl_calib_xtal_freq_cmd cmd;
  55        __le16 *xtal_calib = priv->nvm_data->xtal_calib;
  56
  57        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
  58        cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
  59        cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
  60        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
  61}
  62
  63static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
  64{
  65        struct iwl_calib_temperature_offset_cmd cmd;
  66
  67        memset(&cmd, 0, sizeof(cmd));
  68        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
  69        cmd.radio_sensor_offset = priv->nvm_data->raw_temperature;
  70        if (!(cmd.radio_sensor_offset))
  71                cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
  72
  73        IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
  74                        le16_to_cpu(cmd.radio_sensor_offset));
  75        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
  76}
  77
  78static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
  79{
  80        struct iwl_calib_temperature_offset_v2_cmd cmd;
  81
  82        memset(&cmd, 0, sizeof(cmd));
  83        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
  84        cmd.radio_sensor_offset_high = priv->nvm_data->kelvin_temperature;
  85        cmd.radio_sensor_offset_low = priv->nvm_data->raw_temperature;
  86        if (!cmd.radio_sensor_offset_low) {
  87                IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
  88                cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
  89                cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
  90        }
  91        cmd.burntVoltageRef = priv->nvm_data->calib_voltage;
  92
  93        IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
  94                        le16_to_cpu(cmd.radio_sensor_offset_high));
  95        IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
  96                        le16_to_cpu(cmd.radio_sensor_offset_low));
  97        IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
  98                        le16_to_cpu(cmd.burntVoltageRef));
  99
 100        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 101}
 102
 103static int iwl_send_calib_cfg(struct iwl_priv *priv)
 104{
 105        struct iwl_calib_cfg_cmd calib_cfg_cmd;
 106        struct iwl_host_cmd cmd = {
 107                .id = CALIBRATION_CFG_CMD,
 108                .len = { sizeof(struct iwl_calib_cfg_cmd), },
 109                .data = { &calib_cfg_cmd, },
 110        };
 111
 112        memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 113        calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 114        calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 115        calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 116        calib_cfg_cmd.ucd_calib_cfg.flags =
 117                IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 118
 119        return iwl_dvm_send_cmd(priv, &cmd);
 120}
 121
 122int iwl_init_alive_start(struct iwl_priv *priv)
 123{
 124        int ret;
 125
 126        if (priv->lib->bt_params &&
 127            priv->lib->bt_params->advanced_bt_coexist) {
 128                /*
 129                 * Tell uCode we are ready to perform calibration
 130                 * need to perform this before any calibration
 131                 * no need to close the envlope since we are going
 132                 * to load the runtime uCode later.
 133                 */
 134                ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 135                        BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 136                if (ret)
 137                        return ret;
 138
 139        }
 140
 141        ret = iwl_send_calib_cfg(priv);
 142        if (ret)
 143                return ret;
 144
 145        /**
 146         * temperature offset calibration is only needed for runtime ucode,
 147         * so prepare the value now.
 148         */
 149        if (priv->lib->need_temp_offset_calib) {
 150                if (priv->lib->temp_offset_v2)
 151                        return iwl_set_temperature_offset_calib_v2(priv);
 152                else
 153                        return iwl_set_temperature_offset_calib(priv);
 154        }
 155
 156        return 0;
 157}
 158
 159static int iwl_send_wimax_coex(struct iwl_priv *priv)
 160{
 161        struct iwl_wimax_coex_cmd coex_cmd;
 162
 163        /* coexistence is disabled */
 164        memset(&coex_cmd, 0, sizeof(coex_cmd));
 165
 166        return iwl_dvm_send_cmd_pdu(priv,
 167                                COEX_PRIORITY_TABLE_CMD, 0,
 168                                sizeof(coex_cmd), &coex_cmd);
 169}
 170
 171static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 172        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 173                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 174        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 175                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 176        ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 177                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 178        ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 179                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 180        ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 181                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 182        ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 183                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 184        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 185                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 186        ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 187                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 188        ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 189                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 190        0, 0, 0, 0, 0, 0, 0
 191};
 192
 193void iwl_send_prio_tbl(struct iwl_priv *priv)
 194{
 195        struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 196
 197        memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
 198                sizeof(iwl_bt_prio_tbl));
 199        if (iwl_dvm_send_cmd_pdu(priv,
 200                                REPLY_BT_COEX_PRIO_TABLE, 0,
 201                                sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 202                IWL_ERR(priv, "failed to send BT prio tbl command\n");
 203}
 204
 205int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 206{
 207        struct iwl_bt_coex_prot_env_cmd env_cmd;
 208        int ret;
 209
 210        env_cmd.action = action;
 211        env_cmd.type = type;
 212        ret = iwl_dvm_send_cmd_pdu(priv,
 213                               REPLY_BT_COEX_PROT_ENV, 0,
 214                               sizeof(env_cmd), &env_cmd);
 215        if (ret)
 216                IWL_ERR(priv, "failed to send BT env command\n");
 217        return ret;
 218}
 219
 220static const u8 iwlagn_default_queue_to_tx_fifo[] = {
 221        IWL_TX_FIFO_VO,
 222        IWL_TX_FIFO_VI,
 223        IWL_TX_FIFO_BE,
 224        IWL_TX_FIFO_BK,
 225};
 226
 227static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
 228        IWL_TX_FIFO_VO,
 229        IWL_TX_FIFO_VI,
 230        IWL_TX_FIFO_BE,
 231        IWL_TX_FIFO_BK,
 232        IWL_TX_FIFO_BK_IPAN,
 233        IWL_TX_FIFO_BE_IPAN,
 234        IWL_TX_FIFO_VI_IPAN,
 235        IWL_TX_FIFO_VO_IPAN,
 236        IWL_TX_FIFO_BE_IPAN,
 237        IWL_TX_FIFO_UNUSED,
 238        IWL_TX_FIFO_AUX,
 239};
 240
 241static int iwl_alive_notify(struct iwl_priv *priv)
 242{
 243        const u8 *queue_to_txf;
 244        u8 n_queues;
 245        int ret;
 246        int i;
 247
 248        iwl_trans_fw_alive(priv->trans, 0);
 249
 250        if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN &&
 251            priv->nvm_data->sku_cap_ipan_enable) {
 252                n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
 253                queue_to_txf = iwlagn_ipan_queue_to_tx_fifo;
 254        } else {
 255                n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
 256                queue_to_txf = iwlagn_default_queue_to_tx_fifo;
 257        }
 258
 259        for (i = 0; i < n_queues; i++)
 260                if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
 261                        iwl_trans_ac_txq_enable(priv->trans, i,
 262                                                queue_to_txf[i], 0);
 263
 264        priv->passive_no_rx = false;
 265        priv->transport_queue_stop = 0;
 266
 267        ret = iwl_send_wimax_coex(priv);
 268        if (ret)
 269                return ret;
 270
 271        if (!priv->lib->no_xtal_calib) {
 272                ret = iwl_set_Xtal_calib(priv);
 273                if (ret)
 274                        return ret;
 275        }
 276
 277        return iwl_send_calib_results(priv);
 278}
 279
 280struct iwl_alive_data {
 281        bool valid;
 282        u8 subtype;
 283};
 284
 285static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 286                         struct iwl_rx_packet *pkt, void *data)
 287{
 288        struct iwl_priv *priv =
 289                container_of(notif_wait, struct iwl_priv, notif_wait);
 290        struct iwl_alive_data *alive_data = data;
 291        struct iwl_alive_resp *palive;
 292
 293        palive = (void *)pkt->data;
 294
 295        IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 296                       "0x%01X 0x%01X\n",
 297                       palive->is_valid, palive->ver_type,
 298                       palive->ver_subtype);
 299
 300        priv->device_pointers.error_event_table =
 301                le32_to_cpu(palive->error_event_table_ptr);
 302        priv->device_pointers.log_event_table =
 303                le32_to_cpu(palive->log_event_table_ptr);
 304
 305        alive_data->subtype = palive->ver_subtype;
 306        alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 307
 308        return true;
 309}
 310
 311#define UCODE_ALIVE_TIMEOUT     HZ
 312#define UCODE_CALIB_TIMEOUT     (2*HZ)
 313
 314int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
 315                                 enum iwl_ucode_type ucode_type)
 316{
 317        struct iwl_notification_wait alive_wait;
 318        struct iwl_alive_data alive_data;
 319        const struct fw_img *fw;
 320        int ret;
 321        enum iwl_ucode_type old_type;
 322        static const u16 alive_cmd[] = { REPLY_ALIVE };
 323
 324        fw = iwl_get_ucode_image(priv->fw, ucode_type);
 325        if (WARN_ON(!fw))
 326                return -EINVAL;
 327
 328        old_type = priv->cur_ucode;
 329        priv->cur_ucode = ucode_type;
 330        priv->ucode_loaded = false;
 331
 332        iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
 333                                   alive_cmd, ARRAY_SIZE(alive_cmd),
 334                                   iwl_alive_fn, &alive_data);
 335
 336        ret = iwl_trans_start_fw(priv->trans, fw, false);
 337        if (ret) {
 338                priv->cur_ucode = old_type;
 339                iwl_remove_notification(&priv->notif_wait, &alive_wait);
 340                return ret;
 341        }
 342
 343        /*
 344         * Some things may run in the background now, but we
 345         * just wait for the ALIVE notification here.
 346         */
 347        ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
 348                                        UCODE_ALIVE_TIMEOUT);
 349        if (ret) {
 350                priv->cur_ucode = old_type;
 351                return ret;
 352        }
 353
 354        if (!alive_data.valid) {
 355                IWL_ERR(priv, "Loaded ucode is not valid!\n");
 356                priv->cur_ucode = old_type;
 357                return -EIO;
 358        }
 359
 360        priv->ucode_loaded = true;
 361
 362        if (ucode_type != IWL_UCODE_WOWLAN) {
 363                /* delay a bit to give rfkill time to run */
 364                msleep(5);
 365        }
 366
 367        ret = iwl_alive_notify(priv);
 368        if (ret) {
 369                IWL_WARN(priv,
 370                        "Could not complete ALIVE transition: %d\n", ret);
 371                priv->cur_ucode = old_type;
 372                return ret;
 373        }
 374
 375        return 0;
 376}
 377
 378static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
 379                              struct iwl_rx_packet *pkt, void *data)
 380{
 381        struct iwl_priv *priv = data;
 382        struct iwl_calib_hdr *hdr;
 383
 384        if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
 385                WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
 386                return true;
 387        }
 388
 389        hdr = (struct iwl_calib_hdr *)pkt->data;
 390
 391        if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt)))
 392                IWL_ERR(priv, "Failed to record calibration data %d\n",
 393                        hdr->op_code);
 394
 395        return false;
 396}
 397
 398int iwl_run_init_ucode(struct iwl_priv *priv)
 399{
 400        struct iwl_notification_wait calib_wait;
 401        static const u16 calib_complete[] = {
 402                CALIBRATION_RES_NOTIFICATION,
 403                CALIBRATION_COMPLETE_NOTIFICATION
 404        };
 405        int ret;
 406
 407        lockdep_assert_held(&priv->mutex);
 408
 409        /* No init ucode required? Curious, but maybe ok */
 410        if (!priv->fw->img[IWL_UCODE_INIT].num_sec)
 411                return 0;
 412
 413        iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
 414                                   calib_complete, ARRAY_SIZE(calib_complete),
 415                                   iwlagn_wait_calib, priv);
 416
 417        /* Will also start the device */
 418        ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 419        if (ret)
 420                goto error;
 421
 422        ret = iwl_init_alive_start(priv);
 423        if (ret)
 424                goto error;
 425
 426        /*
 427         * Some things may run in the background now, but we
 428         * just wait for the calibration complete notification.
 429         */
 430        ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
 431                                        UCODE_CALIB_TIMEOUT);
 432
 433        goto out;
 434
 435 error:
 436        iwl_remove_notification(&priv->notif_wait, &calib_wait);
 437 out:
 438        /* Whatever happened, stop the device */
 439        iwl_trans_stop_device(priv->trans);
 440        priv->ucode_loaded = false;
 441
 442        return ret;
 443}
 444