drivers/net/wireless/intel/iwlwifi/dvm/ucode.c

   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  */
  34 static 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
  45 static 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
  60 static 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
  85 static 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
 104 int 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
 141 static 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
 153 static 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
 175 void 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
 187 int 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
 202 static 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
 209 static 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
 223 static 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
 262 struct iwl_alive_data {
 263         bool valid;
 264         u8 subtype;
 265 };
 266
 267 static 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
 296 int 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
 360 static 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
 380 int 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 }