linux/drivers/net/wireless/intel/iwlwifi/dvm/ucode.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/******************************************************************************
   3 *
   4 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
   5 * Copyright(c) 2015 Intel Deutschland GmbH
   6 *
   7 * Contact Information:
   8 *  Intel Linux Wireless <linuxwifi@intel.com>
   9 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  10 *
  11 *****************************************************************************/
  12
  13#include <linux/kernel.h>
  14
  15#include "iwl-io.h"
  16#include "iwl-agn-hw.h"
  17#include "iwl-trans.h"
  18#include "iwl-fh.h"
  19#include "iwl-op-mode.h"
  20
  21#include "dev.h"
  22#include "agn.h"
  23#include "calib.h"
  24
  25/******************************************************************************
  26 *
  27 * uCode download functions
  28 *
  29 ******************************************************************************/
  30
  31/*
  32 *  Calibration
  33 */
  34static int iwl_set_Xtal_calib(struct iwl_priv *priv)
  35{
  36        struct iwl_calib_xtal_freq_cmd cmd;
  37        __le16 *xtal_calib = priv->nvm_data->xtal_calib;
  38
  39        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
  40        cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
  41        cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
  42        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
  43}
  44
  45static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
  46{
  47        struct iwl_calib_temperature_offset_cmd cmd;
  48
  49        memset(&cmd, 0, sizeof(cmd));
  50        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
  51        cmd.radio_sensor_offset = priv->nvm_data->raw_temperature;
  52        if (!(cmd.radio_sensor_offset))
  53                cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
  54
  55        IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
  56                        le16_to_cpu(cmd.radio_sensor_offset));
  57        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
  58}
  59
  60static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
  61{
  62        struct iwl_calib_temperature_offset_v2_cmd cmd;
  63
  64        memset(&cmd, 0, sizeof(cmd));
  65        iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
  66        cmd.radio_sensor_offset_high = priv->nvm_data->kelvin_temperature;
  67        cmd.radio_sensor_offset_low = priv->nvm_data->raw_temperature;
  68        if (!cmd.radio_sensor_offset_low) {
  69                IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
  70                cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
  71                cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
  72        }
  73        cmd.burntVoltageRef = priv->nvm_data->calib_voltage;
  74
  75        IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
  76                        le16_to_cpu(cmd.radio_sensor_offset_high));
  77        IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
  78                        le16_to_cpu(cmd.radio_sensor_offset_low));
  79        IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
  80                        le16_to_cpu(cmd.burntVoltageRef));
  81
  82        return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
  83}
  84
  85static int iwl_send_calib_cfg(struct iwl_priv *priv)
  86{
  87        struct iwl_calib_cfg_cmd calib_cfg_cmd;
  88        struct iwl_host_cmd cmd = {
  89                .id = CALIBRATION_CFG_CMD,
  90                .len = { sizeof(struct iwl_calib_cfg_cmd), },
  91                .data = { &calib_cfg_cmd, },
  92        };
  93
  94        memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
  95        calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
  96        calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
  97        calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
  98        calib_cfg_cmd.ucd_calib_cfg.flags =
  99                IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
 100
 101        return iwl_dvm_send_cmd(priv, &cmd);
 102}
 103
 104int iwl_init_alive_start(struct iwl_priv *priv)
 105{
 106        int ret;
 107
 108        if (priv->lib->bt_params &&
 109            priv->lib->bt_params->advanced_bt_coexist) {
 110                /*
 111                 * Tell uCode we are ready to perform calibration
 112                 * need to perform this before any calibration
 113                 * no need to close the envlope since we are going
 114                 * to load the runtime uCode later.
 115                 */
 116                ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 117                        BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 118                if (ret)
 119                        return ret;
 120
 121        }
 122
 123        ret = iwl_send_calib_cfg(priv);
 124        if (ret)
 125                return ret;
 126
 127        /**
 128         * temperature offset calibration is only needed for runtime ucode,
 129         * so prepare the value now.
 130         */
 131        if (priv->lib->need_temp_offset_calib) {
 132                if (priv->lib->temp_offset_v2)
 133                        return iwl_set_temperature_offset_calib_v2(priv);
 134                else
 135                        return iwl_set_temperature_offset_calib(priv);
 136        }
 137
 138        return 0;
 139}
 140
 141static int iwl_send_wimax_coex(struct iwl_priv *priv)
 142{
 143        struct iwl_wimax_coex_cmd coex_cmd;
 144
 145        /* coexistence is disabled */
 146        memset(&coex_cmd, 0, sizeof(coex_cmd));
 147
 148        return iwl_dvm_send_cmd_pdu(priv,
 149                                COEX_PRIORITY_TABLE_CMD, 0,
 150                                sizeof(coex_cmd), &coex_cmd);
 151}
 152
 153static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 154        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 155                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 156        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 157                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 158        ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 159                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 160        ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 161                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 162        ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 163                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 164        ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 165                (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 166        ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 167                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 168        ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 169                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 170        ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
 171                (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
 172        0, 0, 0, 0, 0, 0, 0
 173};
 174
 175void iwl_send_prio_tbl(struct iwl_priv *priv)
 176{
 177        struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
 178
 179        memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
 180                sizeof(iwl_bt_prio_tbl));
 181        if (iwl_dvm_send_cmd_pdu(priv,
 182                                REPLY_BT_COEX_PRIO_TABLE, 0,
 183                                sizeof(prio_tbl_cmd), &prio_tbl_cmd))
 184                IWL_ERR(priv, "failed to send BT prio tbl command\n");
 185}
 186
 187int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 188{
 189        struct iwl_bt_coex_prot_env_cmd env_cmd;
 190        int ret;
 191
 192        env_cmd.action = action;
 193        env_cmd.type = type;
 194        ret = iwl_dvm_send_cmd_pdu(priv,
 195                               REPLY_BT_COEX_PROT_ENV, 0,
 196                               sizeof(env_cmd), &env_cmd);
 197        if (ret)
 198                IWL_ERR(priv, "failed to send BT env command\n");
 199        return ret;
 200}
 201
 202static const u8 iwlagn_default_queue_to_tx_fifo[] = {
 203        IWL_TX_FIFO_VO,
 204        IWL_TX_FIFO_VI,
 205        IWL_TX_FIFO_BE,
 206        IWL_TX_FIFO_BK,
 207};
 208
 209static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
 210        IWL_TX_FIFO_VO,
 211        IWL_TX_FIFO_VI,
 212        IWL_TX_FIFO_BE,
 213        IWL_TX_FIFO_BK,
 214        IWL_TX_FIFO_BK_IPAN,
 215        IWL_TX_FIFO_BE_IPAN,
 216        IWL_TX_FIFO_VI_IPAN,
 217        IWL_TX_FIFO_VO_IPAN,
 218        IWL_TX_FIFO_BE_IPAN,
 219        IWL_TX_FIFO_UNUSED,
 220        IWL_TX_FIFO_AUX,
 221};
 222
 223static int iwl_alive_notify(struct iwl_priv *priv)
 224{
 225        const u8 *queue_to_txf;
 226        u8 n_queues;
 227        int ret;
 228        int i;
 229
 230        iwl_trans_fw_alive(priv->trans, 0);
 231
 232        if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN &&
 233            priv->nvm_data->sku_cap_ipan_enable) {
 234                n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
 235                queue_to_txf = iwlagn_ipan_queue_to_tx_fifo;
 236        } else {
 237                n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
 238                queue_to_txf = iwlagn_default_queue_to_tx_fifo;
 239        }
 240
 241        for (i = 0; i < n_queues; i++)
 242                if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
 243                        iwl_trans_ac_txq_enable(priv->trans, i,
 244                                                queue_to_txf[i], 0);
 245
 246        priv->passive_no_rx = false;
 247        priv->transport_queue_stop = 0;
 248
 249        ret = iwl_send_wimax_coex(priv);
 250        if (ret)
 251                return ret;
 252
 253        if (!priv->lib->no_xtal_calib) {
 254                ret = iwl_set_Xtal_calib(priv);
 255                if (ret)
 256                        return ret;
 257        }
 258
 259        return iwl_send_calib_results(priv);
 260}
 261
 262struct iwl_alive_data {
 263        bool valid;
 264        u8 subtype;
 265};
 266
 267static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 268                         struct iwl_rx_packet *pkt, void *data)
 269{
 270        struct iwl_priv *priv =
 271                container_of(notif_wait, struct iwl_priv, notif_wait);
 272        struct iwl_alive_data *alive_data = data;
 273        struct iwl_alive_resp *palive;
 274
 275        palive = (void *)pkt->data;
 276
 277        IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
 278                       "0x%01X 0x%01X\n",
 279                       palive->is_valid, palive->ver_type,
 280                       palive->ver_subtype);
 281
 282        priv->device_pointers.error_event_table =
 283                le32_to_cpu(palive->error_event_table_ptr);
 284        priv->device_pointers.log_event_table =
 285                le32_to_cpu(palive->log_event_table_ptr);
 286
 287        alive_data->subtype = palive->ver_subtype;
 288        alive_data->valid = palive->is_valid == UCODE_VALID_OK;
 289
 290        return true;
 291}
 292
 293#define UCODE_ALIVE_TIMEOUT     HZ
 294#define UCODE_CALIB_TIMEOUT     (2*HZ)
 295
 296int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
 297                                 enum iwl_ucode_type ucode_type)
 298{
 299        struct iwl_notification_wait alive_wait;
 300        struct iwl_alive_data alive_data;
 301        const struct fw_img *fw;
 302        int ret;
 303        enum iwl_ucode_type old_type;
 304        static const u16 alive_cmd[] = { REPLY_ALIVE };
 305
 306        fw = iwl_get_ucode_image(priv->fw, ucode_type);
 307        if (WARN_ON(!fw))
 308                return -EINVAL;
 309
 310        old_type = priv->cur_ucode;
 311        priv->cur_ucode = ucode_type;
 312        priv->ucode_loaded = false;
 313
 314        iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
 315                                   alive_cmd, ARRAY_SIZE(alive_cmd),
 316                                   iwl_alive_fn, &alive_data);
 317
 318        ret = iwl_trans_start_fw(priv->trans, fw, false);
 319        if (ret) {
 320                priv->cur_ucode = old_type;
 321                iwl_remove_notification(&priv->notif_wait, &alive_wait);
 322                return ret;
 323        }
 324
 325        /*
 326         * Some things may run in the background now, but we
 327         * just wait for the ALIVE notification here.
 328         */
 329        ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
 330                                        UCODE_ALIVE_TIMEOUT);
 331        if (ret) {
 332                priv->cur_ucode = old_type;
 333                return ret;
 334        }
 335
 336        if (!alive_data.valid) {
 337                IWL_ERR(priv, "Loaded ucode is not valid!\n");
 338                priv->cur_ucode = old_type;
 339                return -EIO;
 340        }
 341
 342        priv->ucode_loaded = true;
 343
 344        if (ucode_type != IWL_UCODE_WOWLAN) {
 345                /* delay a bit to give rfkill time to run */
 346                msleep(5);
 347        }
 348
 349        ret = iwl_alive_notify(priv);
 350        if (ret) {
 351                IWL_WARN(priv,
 352                        "Could not complete ALIVE transition: %d\n", ret);
 353                priv->cur_ucode = old_type;
 354                return ret;
 355        }
 356
 357        return 0;
 358}
 359
 360static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
 361                              struct iwl_rx_packet *pkt, void *data)
 362{
 363        struct iwl_priv *priv = data;
 364        struct iwl_calib_hdr *hdr;
 365
 366        if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
 367                WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
 368                return true;
 369        }
 370
 371        hdr = (struct iwl_calib_hdr *)pkt->data;
 372
 373        if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt)))
 374                IWL_ERR(priv, "Failed to record calibration data %d\n",
 375                        hdr->op_code);
 376
 377        return false;
 378}
 379
 380int iwl_run_init_ucode(struct iwl_priv *priv)
 381{
 382        struct iwl_notification_wait calib_wait;
 383        static const u16 calib_complete[] = {
 384                CALIBRATION_RES_NOTIFICATION,
 385                CALIBRATION_COMPLETE_NOTIFICATION
 386        };
 387        int ret;
 388
 389        lockdep_assert_held(&priv->mutex);
 390
 391        /* No init ucode required? Curious, but maybe ok */
 392        if (!priv->fw->img[IWL_UCODE_INIT].num_sec)
 393                return 0;
 394
 395        iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
 396                                   calib_complete, ARRAY_SIZE(calib_complete),
 397                                   iwlagn_wait_calib, priv);
 398
 399        /* Will also start the device */
 400        ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
 401        if (ret)
 402                goto error;
 403
 404        ret = iwl_init_alive_start(priv);
 405        if (ret)
 406                goto error;
 407
 408        /*
 409         * Some things may run in the background now, but we
 410         * just wait for the calibration complete notification.
 411         */
 412        ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
 413                                        UCODE_CALIB_TIMEOUT);
 414
 415        goto out;
 416
 417 error:
 418        iwl_remove_notification(&priv->notif_wait, &calib_wait);
 419 out:
 420        /* Whatever happened, stop the device */
 421        iwl_trans_stop_device(priv->trans);
 422        priv->ucode_loaded = false;
 423
 424        return ret;
 425}
 426