linux/drivers/net/wireless/iwlwifi/dvm/ucode.c
<<
>>
Prefs
   1/******************************************************************************
   2 *
   3 * GPL LICENSE SUMMARY
   4 *
   5 * Copyright(c) 2008 - 2014 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 COPYING.
  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
  32#include "iwl-io.h"
  33#include "iwl-agn-hw.h"
  34#include "iwl-trans.h"
  35#include "iwl-fh.h"
  36#include "iwl-op-mode.h"
  37
  38#include "dev.h"
  39#include "agn.h"
  40#include "calib.h"
  41
  42/******************************************************************************
  43 *
  44 * uCode download functions
  45 *
  46 ******************************************************************************/
  47
  48static inline const struct fw_img *
  49iwl_get_ucode_image(struct iwl_priv *priv, enum iwl_ucode_type ucode_type)
  50{
  51        if (ucode_type >= IWL_UCODE_TYPE_MAX)
  52                return NULL;
  53
  54        return &priv->fw->img[ucode_type];
  55}
  56
  57/*
  58 *  Calibration
  59 */
  60static int iwl_set_Xtal_calib(struct iwl_priv *priv)
  61{
  62        struct iwl_calib_xtal_freq_cmd cmd;
  63        __le16 *xtal_calib = priv->nvm_data->xtal_calib;
  64
  65        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
  66        cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
  67        cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
  68        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
  69}
  70
  71static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
  72{
  73        struct iwl_calib_temperature_offset_cmd cmd;
  74
  75        memset(&cmd, 0, sizeof(cmd));
  76        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
  77        cmd.radio_sensor_offset = priv->nvm_data->raw_temperature;
  78        if (!(cmd.radio_sensor_offset))
  79                cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
  80
  81        IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
  82                        le16_to_cpu(cmd.radio_sensor_offset));
  83        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
  84}
  85
  86static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
  87{
  88        struct iwl_calib_temperature_offset_v2_cmd cmd;
  89
  90        memset(&cmd, 0, sizeof(cmd));
  91        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
  92        cmd.radio_sensor_offset_high = priv->nvm_data->kelvin_temperature;
  93        cmd.radio_sensor_offset_low = priv->nvm_data->raw_temperature;
  94        if (!cmd.radio_sensor_offset_low) {
  95                IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
  96                cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
  97                cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
  98        }
  99        cmd.burntVoltageRef = priv->nvm_data->calib_voltage;
 100
 101        IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
 102                        le16_to_cpu(cmd.radio_sensor_offset_high));
 103        IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
 104                        le16_to_cpu(cmd.radio_sensor_offset_low));
 105        IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
 106                        le16_to_cpu(cmd.burntVoltageRef));
 107
 108        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
 109}
 110
 111static int iwl_send_calib_cfg(struct iwl_priv *priv)
 112{
 113        struct iwl_calib_cfg_cmd calib_cfg_cmd;
 114        struct iwl_host_cmd cmd = {
 115                .id = CALIBRATION_CFG_CMD,
 116                .len = { sizeof(struct iwl_calib_cfg_cmd), },
 117                .data = { &calib_cfg_cmd, },
 118        };
 119
 120        memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 121        calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 122        calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 123        calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 124        calib_cfg_cmd.ucd_calib_cfg.flags =
 125                IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 126
 127        return iwl_dvm_send_cmd(priv, &cmd);
 128}
 129
 130int iwl_init_alive_start(struct iwl_priv *priv)
 131{
 132        int ret;
 133
 134        if (priv->lib->bt_params &&
 135            priv->lib->bt_params->advanced_bt_coexist) {
 136                /*
 137                 * Tell uCode we are ready to perform calibration
 138                 * need to perform this before any calibration
 139                 * no need to close the envlope since we are going
 140                 * to load the runtime uCode later.
 141                 */
 142                ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 143                        BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 144                if (ret)
 145                        return ret;
 146
 147        }
 148
 149        ret = iwl_send_calib_cfg(priv);
 150        if (ret)
 151                return ret;
 152
 153        /**
 154         * temperature offset calibration is only needed for runtime ucode,
 155         * so prepare the value now.
 156         */
 157        if (priv->lib->need_temp_offset_calib) {
 158                if (priv->lib->temp_offset_v2)
 159                        return iwl_set_temperature_offset_calib_v2(priv);
 160                else
 161                        return iwl_set_temperature_offset_calib(priv);
 162        }
 163
 164        return 0;
 165}
 166
 167static int iwl_send_wimax_coex(struct iwl_priv *priv)
 168{
 169        struct iwl_wimax_coex_cmd coex_cmd;
 170
 171        /* coexistence is disabled */
 172        memset(&coex_cmd, 0, sizeof(coex_cmd));
 173
 174        return iwl_dvm_send_cmd_pdu(priv,
 175                                COEX_PRIORITY_TABLE_CMD, 0,
 176                                sizeof(coex_cmd), &coex_cmd);
 177}
 178
 179static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 180        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 181                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 182        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 183                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 184        ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 185                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 186        ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 187                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 188        ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 189                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 190        ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 191                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 192        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 193                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 194        ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 195                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 196        ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 197                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 198        0, 0, 0, 0, 0, 0, 0
 199};
 200
 201void iwl_send_prio_tbl(struct iwl_priv *priv)
 202{
 203        struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 204
 205        memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
 206                sizeof(iwl_bt_prio_tbl));
 207        if (iwl_dvm_send_cmd_pdu(priv,
 208                                REPLY_BT_COEX_PRIO_TABLE, 0,
 209                                sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 210                IWL_ERR(priv, "failed to send BT prio tbl command\n");
 211}
 212
 213int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 214{
 215        struct iwl_bt_coex_prot_env_cmd env_cmd;
 216        int ret;
 217
 218        env_cmd.action = action;
 219        env_cmd.type = type;
 220        ret = iwl_dvm_send_cmd_pdu(priv,
 221                               REPLY_BT_COEX_PROT_ENV, 0,
 222                               sizeof(env_cmd), &env_cmd);
 223        if (ret)
 224                IWL_ERR(priv, "failed to send BT env command\n");
 225        return ret;
 226}
 227
 228static const u8 iwlagn_default_queue_to_tx_fifo[] = {
 229        IWL_TX_FIFO_VO,
 230        IWL_TX_FIFO_VI,
 231        IWL_TX_FIFO_BE,
 232        IWL_TX_FIFO_BK,
 233};
 234
 235static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
 236        IWL_TX_FIFO_VO,
 237        IWL_TX_FIFO_VI,
 238        IWL_TX_FIFO_BE,
 239        IWL_TX_FIFO_BK,
 240        IWL_TX_FIFO_BK_IPAN,
 241        IWL_TX_FIFO_BE_IPAN,
 242        IWL_TX_FIFO_VI_IPAN,
 243        IWL_TX_FIFO_VO_IPAN,
 244        IWL_TX_FIFO_BE_IPAN,
 245        IWL_TX_FIFO_UNUSED,
 246        IWL_TX_FIFO_AUX,
 247};
 248
 249static int iwl_alive_notify(struct iwl_priv *priv)
 250{
 251        const u8 *queue_to_txf;
 252        u8 n_queues;
 253        int ret;
 254        int i;
 255
 256        iwl_trans_fw_alive(priv->trans, 0);
 257
 258        if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN &&
 259            priv->nvm_data->sku_cap_ipan_enable) {
 260                n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
 261                queue_to_txf = iwlagn_ipan_queue_to_tx_fifo;
 262        } else {
 263                n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
 264                queue_to_txf = iwlagn_default_queue_to_tx_fifo;
 265        }
 266
 267        for (i = 0; i < n_queues; i++)
 268                if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
 269                        iwl_trans_ac_txq_enable(priv->trans, i,
 270                                                queue_to_txf[i], 0);
 271
 272        priv->passive_no_rx = false;
 273        priv->transport_queue_stop = 0;
 274
 275        ret = iwl_send_wimax_coex(priv);
 276        if (ret)
 277                return ret;
 278
 279        if (!priv->lib->no_xtal_calib) {
 280                ret = iwl_set_Xtal_calib(priv);
 281                if (ret)
 282                        return ret;
 283        }
 284
 285        return iwl_send_calib_results(priv);
 286}
 287
 288struct iwl_alive_data {
 289        bool valid;
 290        u8 subtype;
 291};
 292
 293static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 294                         struct iwl_rx_packet *pkt, void *data)
 295{
 296        struct iwl_priv *priv =
 297                container_of(notif_wait, struct iwl_priv, notif_wait);
 298        struct iwl_alive_data *alive_data = data;
 299        struct iwl_alive_resp *palive;
 300
 301        palive = (void *)pkt->data;
 302
 303        IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 304                       "0x%01X 0x%01X\n",
 305                       palive->is_valid, palive->ver_type,
 306                       palive->ver_subtype);
 307
 308        priv->device_pointers.error_event_table =
 309                le32_to_cpu(palive->error_event_table_ptr);
 310        priv->device_pointers.log_event_table =
 311                le32_to_cpu(palive->log_event_table_ptr);
 312
 313        alive_data->subtype = palive->ver_subtype;
 314        alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 315
 316        return true;
 317}
 318
 319#define UCODE_ALIVE_TIMEOUT     HZ
 320#define UCODE_CALIB_TIMEOUT     (2*HZ)
 321
 322int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
 323                                 enum iwl_ucode_type ucode_type)
 324{
 325        struct iwl_notification_wait alive_wait;
 326        struct iwl_alive_data alive_data;
 327        const struct fw_img *fw;
 328        int ret;
 329        enum iwl_ucode_type old_type;
 330        static const u8 alive_cmd[] = { REPLY_ALIVE };
 331
 332        fw = iwl_get_ucode_image(priv, ucode_type);
 333        if (WARN_ON(!fw))
 334                return -EINVAL;
 335
 336        old_type = priv->cur_ucode;
 337        priv->cur_ucode = ucode_type;
 338        priv->ucode_loaded = false;
 339
 340        iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
 341                                   alive_cmd, ARRAY_SIZE(alive_cmd),
 342                                   iwl_alive_fn, &alive_data);
 343
 344        ret = iwl_trans_start_fw(priv->trans, fw, false);
 345        if (ret) {
 346                priv->cur_ucode = old_type;
 347                iwl_remove_notification(&priv->notif_wait, &alive_wait);
 348                return ret;
 349        }
 350
 351        /*
 352         * Some things may run in the background now, but we
 353         * just wait for the ALIVE notification here.
 354         */
 355        ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
 356                                        UCODE_ALIVE_TIMEOUT);
 357        if (ret) {
 358                priv->cur_ucode = old_type;
 359                return ret;
 360        }
 361
 362        if (!alive_data.valid) {
 363                IWL_ERR(priv, "Loaded ucode is not valid!\n");
 364                priv->cur_ucode = old_type;
 365                return -EIO;
 366        }
 367
 368        priv->ucode_loaded = true;
 369
 370        if (ucode_type != IWL_UCODE_WOWLAN) {
 371                /* delay a bit to give rfkill time to run */
 372                msleep(5);
 373        }
 374
 375        ret = iwl_alive_notify(priv);
 376        if (ret) {
 377                IWL_WARN(priv,
 378                        "Could not complete ALIVE transition: %d\n", ret);
 379                priv->cur_ucode = old_type;
 380                return ret;
 381        }
 382
 383        return 0;
 384}
 385
 386static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
 387                              struct iwl_rx_packet *pkt, void *data)
 388{
 389        struct iwl_priv *priv = data;
 390        struct iwl_calib_hdr *hdr;
 391
 392        if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
 393                WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
 394                return true;
 395        }
 396
 397        hdr = (struct iwl_calib_hdr *)pkt->data;
 398
 399        if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt)))
 400                IWL_ERR(priv, "Failed to record calibration data %d\n",
 401                        hdr->op_code);
 402
 403        return false;
 404}
 405
 406int iwl_run_init_ucode(struct iwl_priv *priv)
 407{
 408        struct iwl_notification_wait calib_wait;
 409        static const u8 calib_complete[] = {
 410                CALIBRATION_RES_NOTIFICATION,
 411                CALIBRATION_COMPLETE_NOTIFICATION
 412        };
 413        int ret;
 414
 415        lockdep_assert_held(&priv->mutex);
 416
 417        /* No init ucode required? Curious, but maybe ok */
 418        if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
 419                return 0;
 420
 421        iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
 422                                   calib_complete, ARRAY_SIZE(calib_complete),
 423                                   iwlagn_wait_calib, priv);
 424
 425        /* Will also start the device */
 426        ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 427        if (ret)
 428                goto error;
 429
 430        ret = iwl_init_alive_start(priv);
 431        if (ret)
 432                goto error;
 433
 434        /*
 435         * Some things may run in the background now, but we
 436         * just wait for the calibration complete notification.
 437         */
 438        ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
 439                                        UCODE_CALIB_TIMEOUT);
 440
 441        goto out;
 442
 443 error:
 444        iwl_remove_notification(&priv->notif_wait, &calib_wait);
 445 out:
 446        /* Whatever happened, stop the device */
 447        iwl_trans_stop_device(priv->trans);
 448        priv->ucode_loaded = false;
 449
 450        return ret;
 451}
 452