linux/drivers/net/wireless/ath/ath10k/core.c
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   1/*
   2 * Copyright (c) 2005-2011 Atheros Communications Inc.
   3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
   4 *
   5 * Permission to use, copy, modify, and/or distribute this software for any
   6 * purpose with or without fee is hereby granted, provided that the above
   7 * copyright notice and this permission notice appear in all copies.
   8 *
   9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16 */
  17
  18#include <linux/module.h>
  19#include <linux/firmware.h>
  20#include <linux/of.h>
  21
  22#include "core.h"
  23#include "mac.h"
  24#include "htc.h"
  25#include "hif.h"
  26#include "wmi.h"
  27#include "bmi.h"
  28#include "debug.h"
  29#include "htt.h"
  30#include "testmode.h"
  31#include "wmi-ops.h"
  32
  33unsigned int ath10k_debug_mask;
  34static unsigned int ath10k_cryptmode_param;
  35static bool uart_print;
  36static bool skip_otp;
  37static bool rawmode;
  38
  39module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
  40module_param_named(cryptmode, ath10k_cryptmode_param, uint, 0644);
  41module_param(uart_print, bool, 0644);
  42module_param(skip_otp, bool, 0644);
  43module_param(rawmode, bool, 0644);
  44
  45MODULE_PARM_DESC(debug_mask, "Debugging mask");
  46MODULE_PARM_DESC(uart_print, "Uart target debugging");
  47MODULE_PARM_DESC(skip_otp, "Skip otp failure for calibration in testmode");
  48MODULE_PARM_DESC(cryptmode, "Crypto mode: 0-hardware, 1-software");
  49MODULE_PARM_DESC(rawmode, "Use raw 802.11 frame datapath");
  50
  51static const struct ath10k_hw_params ath10k_hw_params_list[] = {
  52        {
  53                .id = QCA988X_HW_2_0_VERSION,
  54                .dev_id = QCA988X_2_0_DEVICE_ID,
  55                .name = "qca988x hw2.0",
  56                .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
  57                .uart_pin = 7,
  58                .has_shifted_cc_wraparound = true,
  59                .otp_exe_param = 0,
  60                .channel_counters_freq_hz = 88000,
  61                .max_probe_resp_desc_thres = 0,
  62                .hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
  63                .fw = {
  64                        .dir = QCA988X_HW_2_0_FW_DIR,
  65                        .fw = QCA988X_HW_2_0_FW_FILE,
  66                        .otp = QCA988X_HW_2_0_OTP_FILE,
  67                        .board = QCA988X_HW_2_0_BOARD_DATA_FILE,
  68                        .board_size = QCA988X_BOARD_DATA_SZ,
  69                        .board_ext_size = QCA988X_BOARD_EXT_DATA_SZ,
  70                },
  71        },
  72        {
  73                .id = QCA6174_HW_2_1_VERSION,
  74                .dev_id = QCA6164_2_1_DEVICE_ID,
  75                .name = "qca6164 hw2.1",
  76                .patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR,
  77                .uart_pin = 6,
  78                .otp_exe_param = 0,
  79                .channel_counters_freq_hz = 88000,
  80                .max_probe_resp_desc_thres = 0,
  81                .fw = {
  82                        .dir = QCA6174_HW_2_1_FW_DIR,
  83                        .fw = QCA6174_HW_2_1_FW_FILE,
  84                        .otp = QCA6174_HW_2_1_OTP_FILE,
  85                        .board = QCA6174_HW_2_1_BOARD_DATA_FILE,
  86                        .board_size = QCA6174_BOARD_DATA_SZ,
  87                        .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
  88                },
  89        },
  90        {
  91                .id = QCA6174_HW_2_1_VERSION,
  92                .dev_id = QCA6174_2_1_DEVICE_ID,
  93                .name = "qca6174 hw2.1",
  94                .patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR,
  95                .uart_pin = 6,
  96                .otp_exe_param = 0,
  97                .channel_counters_freq_hz = 88000,
  98                .max_probe_resp_desc_thres = 0,
  99                .hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
 100                .fw = {
 101                        .dir = QCA6174_HW_2_1_FW_DIR,
 102                        .fw = QCA6174_HW_2_1_FW_FILE,
 103                        .otp = QCA6174_HW_2_1_OTP_FILE,
 104                        .board = QCA6174_HW_2_1_BOARD_DATA_FILE,
 105                        .board_size = QCA6174_BOARD_DATA_SZ,
 106                        .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
 107                },
 108        },
 109        {
 110                .id = QCA6174_HW_3_0_VERSION,
 111                .dev_id = QCA6174_2_1_DEVICE_ID,
 112                .name = "qca6174 hw3.0",
 113                .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
 114                .uart_pin = 6,
 115                .otp_exe_param = 0,
 116                .channel_counters_freq_hz = 88000,
 117                .max_probe_resp_desc_thres = 0,
 118                .hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
 119                .fw = {
 120                        .dir = QCA6174_HW_3_0_FW_DIR,
 121                        .fw = QCA6174_HW_3_0_FW_FILE,
 122                        .otp = QCA6174_HW_3_0_OTP_FILE,
 123                        .board = QCA6174_HW_3_0_BOARD_DATA_FILE,
 124                        .board_size = QCA6174_BOARD_DATA_SZ,
 125                        .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
 126                },
 127        },
 128        {
 129                .id = QCA6174_HW_3_2_VERSION,
 130                .dev_id = QCA6174_2_1_DEVICE_ID,
 131                .name = "qca6174 hw3.2",
 132                .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
 133                .uart_pin = 6,
 134                .otp_exe_param = 0,
 135                .channel_counters_freq_hz = 88000,
 136                .max_probe_resp_desc_thres = 0,
 137                .hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
 138                .fw = {
 139                        /* uses same binaries as hw3.0 */
 140                        .dir = QCA6174_HW_3_0_FW_DIR,
 141                        .fw = QCA6174_HW_3_0_FW_FILE,
 142                        .otp = QCA6174_HW_3_0_OTP_FILE,
 143                        .board = QCA6174_HW_3_0_BOARD_DATA_FILE,
 144                        .board_size = QCA6174_BOARD_DATA_SZ,
 145                        .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
 146                },
 147        },
 148        {
 149                .id = QCA99X0_HW_2_0_DEV_VERSION,
 150                .dev_id = QCA99X0_2_0_DEVICE_ID,
 151                .name = "qca99x0 hw2.0",
 152                .patch_load_addr = QCA99X0_HW_2_0_PATCH_LOAD_ADDR,
 153                .uart_pin = 7,
 154                .otp_exe_param = 0x00000700,
 155                .continuous_frag_desc = true,
 156                .channel_counters_freq_hz = 150000,
 157                .max_probe_resp_desc_thres = 24,
 158                .hw_4addr_pad = ATH10K_HW_4ADDR_PAD_BEFORE,
 159                .num_msdu_desc = 1424,
 160                .qcache_active_peers = 50,
 161                .tx_chain_mask = 0xf,
 162                .rx_chain_mask = 0xf,
 163                .max_spatial_stream = 4,
 164                .fw = {
 165                        .dir = QCA99X0_HW_2_0_FW_DIR,
 166                        .fw = QCA99X0_HW_2_0_FW_FILE,
 167                        .otp = QCA99X0_HW_2_0_OTP_FILE,
 168                        .board = QCA99X0_HW_2_0_BOARD_DATA_FILE,
 169                        .board_size = QCA99X0_BOARD_DATA_SZ,
 170                        .board_ext_size = QCA99X0_BOARD_EXT_DATA_SZ,
 171                },
 172        },
 173        {
 174                .id = QCA9377_HW_1_0_DEV_VERSION,
 175                .dev_id = QCA9377_1_0_DEVICE_ID,
 176                .name = "qca9377 hw1.0",
 177                .patch_load_addr = QCA9377_HW_1_0_PATCH_LOAD_ADDR,
 178                .uart_pin = 6,
 179                .otp_exe_param = 0,
 180                .channel_counters_freq_hz = 88000,
 181                .max_probe_resp_desc_thres = 0,
 182                .fw = {
 183                        .dir = QCA9377_HW_1_0_FW_DIR,
 184                        .fw = QCA9377_HW_1_0_FW_FILE,
 185                        .otp = QCA9377_HW_1_0_OTP_FILE,
 186                        .board = QCA9377_HW_1_0_BOARD_DATA_FILE,
 187                        .board_size = QCA9377_BOARD_DATA_SZ,
 188                        .board_ext_size = QCA9377_BOARD_EXT_DATA_SZ,
 189                },
 190        },
 191        {
 192                .id = QCA9377_HW_1_1_DEV_VERSION,
 193                .dev_id = QCA9377_1_0_DEVICE_ID,
 194                .name = "qca9377 hw1.1",
 195                .patch_load_addr = QCA9377_HW_1_0_PATCH_LOAD_ADDR,
 196                .uart_pin = 6,
 197                .otp_exe_param = 0,
 198                .channel_counters_freq_hz = 88000,
 199                .max_probe_resp_desc_thres = 0,
 200                .fw = {
 201                        .dir = QCA9377_HW_1_0_FW_DIR,
 202                        .fw = QCA9377_HW_1_0_FW_FILE,
 203                        .otp = QCA9377_HW_1_0_OTP_FILE,
 204                        .board = QCA9377_HW_1_0_BOARD_DATA_FILE,
 205                        .board_size = QCA9377_BOARD_DATA_SZ,
 206                        .board_ext_size = QCA9377_BOARD_EXT_DATA_SZ,
 207                },
 208        },
 209        {
 210                .id = QCA4019_HW_1_0_DEV_VERSION,
 211                .dev_id = 0,
 212                .name = "qca4019 hw1.0",
 213                .patch_load_addr = QCA4019_HW_1_0_PATCH_LOAD_ADDR,
 214                .uart_pin = 7,
 215                .otp_exe_param = 0x0010000,
 216                .continuous_frag_desc = true,
 217                .channel_counters_freq_hz = 125000,
 218                .max_probe_resp_desc_thres = 24,
 219                .hw_4addr_pad = ATH10K_HW_4ADDR_PAD_BEFORE,
 220                .num_msdu_desc = 2500,
 221                .qcache_active_peers = 35,
 222                .tx_chain_mask = 0x3,
 223                .rx_chain_mask = 0x3,
 224                .max_spatial_stream = 2,
 225                .fw = {
 226                        .dir = QCA4019_HW_1_0_FW_DIR,
 227                        .fw = QCA4019_HW_1_0_FW_FILE,
 228                        .otp = QCA4019_HW_1_0_OTP_FILE,
 229                        .board = QCA4019_HW_1_0_BOARD_DATA_FILE,
 230                        .board_size = QCA4019_BOARD_DATA_SZ,
 231                        .board_ext_size = QCA4019_BOARD_EXT_DATA_SZ,
 232                },
 233        },
 234};
 235
 236static const char *const ath10k_core_fw_feature_str[] = {
 237        [ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX] = "wmi-mgmt-rx",
 238        [ATH10K_FW_FEATURE_WMI_10X] = "wmi-10.x",
 239        [ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX] = "has-wmi-mgmt-tx",
 240        [ATH10K_FW_FEATURE_NO_P2P] = "no-p2p",
 241        [ATH10K_FW_FEATURE_WMI_10_2] = "wmi-10.2",
 242        [ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT] = "multi-vif-ps",
 243        [ATH10K_FW_FEATURE_WOWLAN_SUPPORT] = "wowlan",
 244        [ATH10K_FW_FEATURE_IGNORE_OTP_RESULT] = "ignore-otp",
 245        [ATH10K_FW_FEATURE_NO_NWIFI_DECAP_4ADDR_PADDING] = "no-4addr-pad",
 246        [ATH10K_FW_FEATURE_SUPPORTS_SKIP_CLOCK_INIT] = "skip-clock-init",
 247        [ATH10K_FW_FEATURE_RAW_MODE_SUPPORT] = "raw-mode",
 248        [ATH10K_FW_FEATURE_SUPPORTS_ADAPTIVE_CCA] = "adaptive-cca",
 249        [ATH10K_FW_FEATURE_MFP_SUPPORT] = "mfp",
 250        [ATH10K_FW_FEATURE_PEER_FLOW_CONTROL] = "peer-flow-ctrl",
 251};
 252
 253static unsigned int ath10k_core_get_fw_feature_str(char *buf,
 254                                                   size_t buf_len,
 255                                                   enum ath10k_fw_features feat)
 256{
 257        /* make sure that ath10k_core_fw_feature_str[] gets updated */
 258        BUILD_BUG_ON(ARRAY_SIZE(ath10k_core_fw_feature_str) !=
 259                     ATH10K_FW_FEATURE_COUNT);
 260
 261        if (feat >= ARRAY_SIZE(ath10k_core_fw_feature_str) ||
 262            WARN_ON(!ath10k_core_fw_feature_str[feat])) {
 263                return scnprintf(buf, buf_len, "bit%d", feat);
 264        }
 265
 266        return scnprintf(buf, buf_len, "%s", ath10k_core_fw_feature_str[feat]);
 267}
 268
 269void ath10k_core_get_fw_features_str(struct ath10k *ar,
 270                                     char *buf,
 271                                     size_t buf_len)
 272{
 273        unsigned int len = 0;
 274        int i;
 275
 276        for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
 277                if (test_bit(i, ar->fw_features)) {
 278                        if (len > 0)
 279                                len += scnprintf(buf + len, buf_len - len, ",");
 280
 281                        len += ath10k_core_get_fw_feature_str(buf + len,
 282                                                              buf_len - len,
 283                                                              i);
 284                }
 285        }
 286}
 287
 288static void ath10k_send_suspend_complete(struct ath10k *ar)
 289{
 290        ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot suspend complete\n");
 291
 292        complete(&ar->target_suspend);
 293}
 294
 295static int ath10k_init_configure_target(struct ath10k *ar)
 296{
 297        u32 param_host;
 298        int ret;
 299
 300        /* tell target which HTC version it is used*/
 301        ret = ath10k_bmi_write32(ar, hi_app_host_interest,
 302                                 HTC_PROTOCOL_VERSION);
 303        if (ret) {
 304                ath10k_err(ar, "settings HTC version failed\n");
 305                return ret;
 306        }
 307
 308        /* set the firmware mode to STA/IBSS/AP */
 309        ret = ath10k_bmi_read32(ar, hi_option_flag, &param_host);
 310        if (ret) {
 311                ath10k_err(ar, "setting firmware mode (1/2) failed\n");
 312                return ret;
 313        }
 314
 315        /* TODO following parameters need to be re-visited. */
 316        /* num_device */
 317        param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
 318        /* Firmware mode */
 319        /* FIXME: Why FW_MODE_AP ??.*/
 320        param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
 321        /* mac_addr_method */
 322        param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
 323        /* firmware_bridge */
 324        param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
 325        /* fwsubmode */
 326        param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
 327
 328        ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
 329        if (ret) {
 330                ath10k_err(ar, "setting firmware mode (2/2) failed\n");
 331                return ret;
 332        }
 333
 334        /* We do all byte-swapping on the host */
 335        ret = ath10k_bmi_write32(ar, hi_be, 0);
 336        if (ret) {
 337                ath10k_err(ar, "setting host CPU BE mode failed\n");
 338                return ret;
 339        }
 340
 341        /* FW descriptor/Data swap flags */
 342        ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
 343
 344        if (ret) {
 345                ath10k_err(ar, "setting FW data/desc swap flags failed\n");
 346                return ret;
 347        }
 348
 349        /* Some devices have a special sanity check that verifies the PCI
 350         * Device ID is written to this host interest var. It is known to be
 351         * required to boot QCA6164.
 352         */
 353        ret = ath10k_bmi_write32(ar, hi_hci_uart_pwr_mgmt_params_ext,
 354                                 ar->dev_id);
 355        if (ret) {
 356                ath10k_err(ar, "failed to set pwr_mgmt_params: %d\n", ret);
 357                return ret;
 358        }
 359
 360        return 0;
 361}
 362
 363static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
 364                                                   const char *dir,
 365                                                   const char *file)
 366{
 367        char filename[100];
 368        const struct firmware *fw;
 369        int ret;
 370
 371        if (file == NULL)
 372                return ERR_PTR(-ENOENT);
 373
 374        if (dir == NULL)
 375                dir = ".";
 376
 377        snprintf(filename, sizeof(filename), "%s/%s", dir, file);
 378        ret = request_firmware(&fw, filename, ar->dev);
 379        if (ret)
 380                return ERR_PTR(ret);
 381
 382        return fw;
 383}
 384
 385static int ath10k_push_board_ext_data(struct ath10k *ar, const void *data,
 386                                      size_t data_len)
 387{
 388        u32 board_data_size = ar->hw_params.fw.board_size;
 389        u32 board_ext_data_size = ar->hw_params.fw.board_ext_size;
 390        u32 board_ext_data_addr;
 391        int ret;
 392
 393        ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
 394        if (ret) {
 395                ath10k_err(ar, "could not read board ext data addr (%d)\n",
 396                           ret);
 397                return ret;
 398        }
 399
 400        ath10k_dbg(ar, ATH10K_DBG_BOOT,
 401                   "boot push board extended data addr 0x%x\n",
 402                   board_ext_data_addr);
 403
 404        if (board_ext_data_addr == 0)
 405                return 0;
 406
 407        if (data_len != (board_data_size + board_ext_data_size)) {
 408                ath10k_err(ar, "invalid board (ext) data sizes %zu != %d+%d\n",
 409                           data_len, board_data_size, board_ext_data_size);
 410                return -EINVAL;
 411        }
 412
 413        ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
 414                                      data + board_data_size,
 415                                      board_ext_data_size);
 416        if (ret) {
 417                ath10k_err(ar, "could not write board ext data (%d)\n", ret);
 418                return ret;
 419        }
 420
 421        ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
 422                                 (board_ext_data_size << 16) | 1);
 423        if (ret) {
 424                ath10k_err(ar, "could not write board ext data bit (%d)\n",
 425                           ret);
 426                return ret;
 427        }
 428
 429        return 0;
 430}
 431
 432static int ath10k_download_board_data(struct ath10k *ar, const void *data,
 433                                      size_t data_len)
 434{
 435        u32 board_data_size = ar->hw_params.fw.board_size;
 436        u32 address;
 437        int ret;
 438
 439        ret = ath10k_push_board_ext_data(ar, data, data_len);
 440        if (ret) {
 441                ath10k_err(ar, "could not push board ext data (%d)\n", ret);
 442                goto exit;
 443        }
 444
 445        ret = ath10k_bmi_read32(ar, hi_board_data, &address);
 446        if (ret) {
 447                ath10k_err(ar, "could not read board data addr (%d)\n", ret);
 448                goto exit;
 449        }
 450
 451        ret = ath10k_bmi_write_memory(ar, address, data,
 452                                      min_t(u32, board_data_size,
 453                                            data_len));
 454        if (ret) {
 455                ath10k_err(ar, "could not write board data (%d)\n", ret);
 456                goto exit;
 457        }
 458
 459        ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
 460        if (ret) {
 461                ath10k_err(ar, "could not write board data bit (%d)\n", ret);
 462                goto exit;
 463        }
 464
 465exit:
 466        return ret;
 467}
 468
 469static int ath10k_download_cal_file(struct ath10k *ar)
 470{
 471        int ret;
 472
 473        if (!ar->cal_file)
 474                return -ENOENT;
 475
 476        if (IS_ERR(ar->cal_file))
 477                return PTR_ERR(ar->cal_file);
 478
 479        ret = ath10k_download_board_data(ar, ar->cal_file->data,
 480                                         ar->cal_file->size);
 481        if (ret) {
 482                ath10k_err(ar, "failed to download cal_file data: %d\n", ret);
 483                return ret;
 484        }
 485
 486        ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot cal file downloaded\n");
 487
 488        return 0;
 489}
 490
 491static int ath10k_download_cal_dt(struct ath10k *ar)
 492{
 493        struct device_node *node;
 494        int data_len;
 495        void *data;
 496        int ret;
 497
 498        node = ar->dev->of_node;
 499        if (!node)
 500                /* Device Tree is optional, don't print any warnings if
 501                 * there's no node for ath10k.
 502                 */
 503                return -ENOENT;
 504
 505        if (!of_get_property(node, "qcom,ath10k-calibration-data",
 506                             &data_len)) {
 507                /* The calibration data node is optional */
 508                return -ENOENT;
 509        }
 510
 511        if (data_len != QCA988X_CAL_DATA_LEN) {
 512                ath10k_warn(ar, "invalid calibration data length in DT: %d\n",
 513                            data_len);
 514                ret = -EMSGSIZE;
 515                goto out;
 516        }
 517
 518        data = kmalloc(data_len, GFP_KERNEL);
 519        if (!data) {
 520                ret = -ENOMEM;
 521                goto out;
 522        }
 523
 524        ret = of_property_read_u8_array(node, "qcom,ath10k-calibration-data",
 525                                        data, data_len);
 526        if (ret) {
 527                ath10k_warn(ar, "failed to read calibration data from DT: %d\n",
 528                            ret);
 529                goto out_free;
 530        }
 531
 532        ret = ath10k_download_board_data(ar, data, data_len);
 533        if (ret) {
 534                ath10k_warn(ar, "failed to download calibration data from Device Tree: %d\n",
 535                            ret);
 536                goto out_free;
 537        }
 538
 539        ret = 0;
 540
 541out_free:
 542        kfree(data);
 543
 544out:
 545        return ret;
 546}
 547
 548static int ath10k_core_get_board_id_from_otp(struct ath10k *ar)
 549{
 550        u32 result, address;
 551        u8 board_id, chip_id;
 552        int ret;
 553
 554        address = ar->hw_params.patch_load_addr;
 555
 556        if (!ar->otp_data || !ar->otp_len) {
 557                ath10k_warn(ar,
 558                            "failed to retrieve board id because of invalid otp\n");
 559                return -ENODATA;
 560        }
 561
 562        ath10k_dbg(ar, ATH10K_DBG_BOOT,
 563                   "boot upload otp to 0x%x len %zd for board id\n",
 564                   address, ar->otp_len);
 565
 566        ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
 567        if (ret) {
 568                ath10k_err(ar, "could not write otp for board id check: %d\n",
 569                           ret);
 570                return ret;
 571        }
 572
 573        ret = ath10k_bmi_execute(ar, address, BMI_PARAM_GET_EEPROM_BOARD_ID,
 574                                 &result);
 575        if (ret) {
 576                ath10k_err(ar, "could not execute otp for board id check: %d\n",
 577                           ret);
 578                return ret;
 579        }
 580
 581        board_id = MS(result, ATH10K_BMI_BOARD_ID_FROM_OTP);
 582        chip_id = MS(result, ATH10K_BMI_CHIP_ID_FROM_OTP);
 583
 584        ath10k_dbg(ar, ATH10K_DBG_BOOT,
 585                   "boot get otp board id result 0x%08x board_id %d chip_id %d\n",
 586                   result, board_id, chip_id);
 587
 588        if ((result & ATH10K_BMI_BOARD_ID_STATUS_MASK) != 0)
 589                return -EOPNOTSUPP;
 590
 591        ar->id.bmi_ids_valid = true;
 592        ar->id.bmi_board_id = board_id;
 593        ar->id.bmi_chip_id = chip_id;
 594
 595        return 0;
 596}
 597
 598static int ath10k_download_and_run_otp(struct ath10k *ar)
 599{
 600        u32 result, address = ar->hw_params.patch_load_addr;
 601        u32 bmi_otp_exe_param = ar->hw_params.otp_exe_param;
 602        int ret;
 603
 604        ret = ath10k_download_board_data(ar, ar->board_data, ar->board_len);
 605        if (ret) {
 606                ath10k_err(ar, "failed to download board data: %d\n", ret);
 607                return ret;
 608        }
 609
 610        /* OTP is optional */
 611
 612        if (!ar->otp_data || !ar->otp_len) {
 613                ath10k_warn(ar, "Not running otp, calibration will be incorrect (otp-data %p otp_len %zd)!\n",
 614                            ar->otp_data, ar->otp_len);
 615                return 0;
 616        }
 617
 618        ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot upload otp to 0x%x len %zd\n",
 619                   address, ar->otp_len);
 620
 621        ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
 622        if (ret) {
 623                ath10k_err(ar, "could not write otp (%d)\n", ret);
 624                return ret;
 625        }
 626
 627        ret = ath10k_bmi_execute(ar, address, bmi_otp_exe_param, &result);
 628        if (ret) {
 629                ath10k_err(ar, "could not execute otp (%d)\n", ret);
 630                return ret;
 631        }
 632
 633        ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot otp execute result %d\n", result);
 634
 635        if (!(skip_otp || test_bit(ATH10K_FW_FEATURE_IGNORE_OTP_RESULT,
 636                                   ar->fw_features)) &&
 637            result != 0) {
 638                ath10k_err(ar, "otp calibration failed: %d", result);
 639                return -EINVAL;
 640        }
 641
 642        return 0;
 643}
 644
 645static int ath10k_download_fw(struct ath10k *ar, enum ath10k_firmware_mode mode)
 646{
 647        u32 address, data_len;
 648        const char *mode_name;
 649        const void *data;
 650        int ret;
 651
 652        address = ar->hw_params.patch_load_addr;
 653
 654        switch (mode) {
 655        case ATH10K_FIRMWARE_MODE_NORMAL:
 656                data = ar->firmware_data;
 657                data_len = ar->firmware_len;
 658                mode_name = "normal";
 659                ret = ath10k_swap_code_seg_configure(ar,
 660                                                     ATH10K_SWAP_CODE_SEG_BIN_TYPE_FW);
 661                if (ret) {
 662                        ath10k_err(ar, "failed to configure fw code swap: %d\n",
 663                                   ret);
 664                        return ret;
 665                }
 666                break;
 667        case ATH10K_FIRMWARE_MODE_UTF:
 668                data = ar->testmode.utf_firmware_data;
 669                data_len = ar->testmode.utf_firmware_len;
 670                mode_name = "utf";
 671                break;
 672        default:
 673                ath10k_err(ar, "unknown firmware mode: %d\n", mode);
 674                return -EINVAL;
 675        }
 676
 677        ath10k_dbg(ar, ATH10K_DBG_BOOT,
 678                   "boot uploading firmware image %p len %d mode %s\n",
 679                   data, data_len, mode_name);
 680
 681        ret = ath10k_bmi_fast_download(ar, address, data, data_len);
 682        if (ret) {
 683                ath10k_err(ar, "failed to download %s firmware: %d\n",
 684                           mode_name, ret);
 685                return ret;
 686        }
 687
 688        return ret;
 689}
 690
 691static void ath10k_core_free_board_files(struct ath10k *ar)
 692{
 693        if (!IS_ERR(ar->board))
 694                release_firmware(ar->board);
 695
 696        ar->board = NULL;
 697        ar->board_data = NULL;
 698        ar->board_len = 0;
 699}
 700
 701static void ath10k_core_free_firmware_files(struct ath10k *ar)
 702{
 703        if (!IS_ERR(ar->otp))
 704                release_firmware(ar->otp);
 705
 706        if (!IS_ERR(ar->firmware))
 707                release_firmware(ar->firmware);
 708
 709        if (!IS_ERR(ar->cal_file))
 710                release_firmware(ar->cal_file);
 711
 712        ath10k_swap_code_seg_release(ar);
 713
 714        ar->otp = NULL;
 715        ar->otp_data = NULL;
 716        ar->otp_len = 0;
 717
 718        ar->firmware = NULL;
 719        ar->firmware_data = NULL;
 720        ar->firmware_len = 0;
 721
 722        ar->cal_file = NULL;
 723}
 724
 725static int ath10k_fetch_cal_file(struct ath10k *ar)
 726{
 727        char filename[100];
 728
 729        /* cal-<bus>-<id>.bin */
 730        scnprintf(filename, sizeof(filename), "cal-%s-%s.bin",
 731                  ath10k_bus_str(ar->hif.bus), dev_name(ar->dev));
 732
 733        ar->cal_file = ath10k_fetch_fw_file(ar, ATH10K_FW_DIR, filename);
 734        if (IS_ERR(ar->cal_file))
 735                /* calibration file is optional, don't print any warnings */
 736                return PTR_ERR(ar->cal_file);
 737
 738        ath10k_dbg(ar, ATH10K_DBG_BOOT, "found calibration file %s/%s\n",
 739                   ATH10K_FW_DIR, filename);
 740
 741        return 0;
 742}
 743
 744static int ath10k_core_fetch_board_data_api_1(struct ath10k *ar)
 745{
 746        if (!ar->hw_params.fw.board) {
 747                ath10k_err(ar, "failed to find board file fw entry\n");
 748                return -EINVAL;
 749        }
 750
 751        ar->board = ath10k_fetch_fw_file(ar,
 752                                         ar->hw_params.fw.dir,
 753                                         ar->hw_params.fw.board);
 754        if (IS_ERR(ar->board))
 755                return PTR_ERR(ar->board);
 756
 757        ar->board_data = ar->board->data;
 758        ar->board_len = ar->board->size;
 759
 760        return 0;
 761}
 762
 763static int ath10k_core_parse_bd_ie_board(struct ath10k *ar,
 764                                         const void *buf, size_t buf_len,
 765                                         const char *boardname)
 766{
 767        const struct ath10k_fw_ie *hdr;
 768        bool name_match_found;
 769        int ret, board_ie_id;
 770        size_t board_ie_len;
 771        const void *board_ie_data;
 772
 773        name_match_found = false;
 774
 775        /* go through ATH10K_BD_IE_BOARD_ elements */
 776        while (buf_len > sizeof(struct ath10k_fw_ie)) {
 777                hdr = buf;
 778                board_ie_id = le32_to_cpu(hdr->id);
 779                board_ie_len = le32_to_cpu(hdr->len);
 780                board_ie_data = hdr->data;
 781
 782                buf_len -= sizeof(*hdr);
 783                buf += sizeof(*hdr);
 784
 785                if (buf_len < ALIGN(board_ie_len, 4)) {
 786                        ath10k_err(ar, "invalid ATH10K_BD_IE_BOARD length: %zu < %zu\n",
 787                                   buf_len, ALIGN(board_ie_len, 4));
 788                        ret = -EINVAL;
 789                        goto out;
 790                }
 791
 792                switch (board_ie_id) {
 793                case ATH10K_BD_IE_BOARD_NAME:
 794                        ath10k_dbg_dump(ar, ATH10K_DBG_BOOT, "board name", "",
 795                                        board_ie_data, board_ie_len);
 796
 797                        if (board_ie_len != strlen(boardname))
 798                                break;
 799
 800                        ret = memcmp(board_ie_data, boardname, strlen(boardname));
 801                        if (ret)
 802                                break;
 803
 804                        name_match_found = true;
 805                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
 806                                   "boot found match for name '%s'",
 807                                   boardname);
 808                        break;
 809                case ATH10K_BD_IE_BOARD_DATA:
 810                        if (!name_match_found)
 811                                /* no match found */
 812                                break;
 813
 814                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
 815                                   "boot found board data for '%s'",
 816                                   boardname);
 817
 818                        ar->board_data = board_ie_data;
 819                        ar->board_len = board_ie_len;
 820
 821                        ret = 0;
 822                        goto out;
 823                default:
 824                        ath10k_warn(ar, "unknown ATH10K_BD_IE_BOARD found: %d\n",
 825                                    board_ie_id);
 826                        break;
 827                }
 828
 829                /* jump over the padding */
 830                board_ie_len = ALIGN(board_ie_len, 4);
 831
 832                buf_len -= board_ie_len;
 833                buf += board_ie_len;
 834        }
 835
 836        /* no match found */
 837        ret = -ENOENT;
 838
 839out:
 840        return ret;
 841}
 842
 843static int ath10k_core_fetch_board_data_api_n(struct ath10k *ar,
 844                                              const char *boardname,
 845                                              const char *filename)
 846{
 847        size_t len, magic_len, ie_len;
 848        struct ath10k_fw_ie *hdr;
 849        const u8 *data;
 850        int ret, ie_id;
 851
 852        ar->board = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, filename);
 853        if (IS_ERR(ar->board))
 854                return PTR_ERR(ar->board);
 855
 856        data = ar->board->data;
 857        len = ar->board->size;
 858
 859        /* magic has extra null byte padded */
 860        magic_len = strlen(ATH10K_BOARD_MAGIC) + 1;
 861        if (len < magic_len) {
 862                ath10k_err(ar, "failed to find magic value in %s/%s, file too short: %zu\n",
 863                           ar->hw_params.fw.dir, filename, len);
 864                ret = -EINVAL;
 865                goto err;
 866        }
 867
 868        if (memcmp(data, ATH10K_BOARD_MAGIC, magic_len)) {
 869                ath10k_err(ar, "found invalid board magic\n");
 870                ret = -EINVAL;
 871                goto err;
 872        }
 873
 874        /* magic is padded to 4 bytes */
 875        magic_len = ALIGN(magic_len, 4);
 876        if (len < magic_len) {
 877                ath10k_err(ar, "failed: %s/%s too small to contain board data, len: %zu\n",
 878                           ar->hw_params.fw.dir, filename, len);
 879                ret = -EINVAL;
 880                goto err;
 881        }
 882
 883        data += magic_len;
 884        len -= magic_len;
 885
 886        while (len > sizeof(struct ath10k_fw_ie)) {
 887                hdr = (struct ath10k_fw_ie *)data;
 888                ie_id = le32_to_cpu(hdr->id);
 889                ie_len = le32_to_cpu(hdr->len);
 890
 891                len -= sizeof(*hdr);
 892                data = hdr->data;
 893
 894                if (len < ALIGN(ie_len, 4)) {
 895                        ath10k_err(ar, "invalid length for board ie_id %d ie_len %zu len %zu\n",
 896                                   ie_id, ie_len, len);
 897                        ret = -EINVAL;
 898                        goto err;
 899                }
 900
 901                switch (ie_id) {
 902                case ATH10K_BD_IE_BOARD:
 903                        ret = ath10k_core_parse_bd_ie_board(ar, data, ie_len,
 904                                                            boardname);
 905                        if (ret == -ENOENT)
 906                                /* no match found, continue */
 907                                break;
 908                        else if (ret)
 909                                /* there was an error, bail out */
 910                                goto err;
 911
 912                        /* board data found */
 913                        goto out;
 914                }
 915
 916                /* jump over the padding */
 917                ie_len = ALIGN(ie_len, 4);
 918
 919                len -= ie_len;
 920                data += ie_len;
 921        }
 922
 923out:
 924        if (!ar->board_data || !ar->board_len) {
 925                ath10k_err(ar,
 926                           "failed to fetch board data for %s from %s/%s\n",
 927                           boardname, ar->hw_params.fw.dir, filename);
 928                ret = -ENODATA;
 929                goto err;
 930        }
 931
 932        return 0;
 933
 934err:
 935        ath10k_core_free_board_files(ar);
 936        return ret;
 937}
 938
 939static int ath10k_core_create_board_name(struct ath10k *ar, char *name,
 940                                         size_t name_len)
 941{
 942        if (ar->id.bmi_ids_valid) {
 943                scnprintf(name, name_len,
 944                          "bus=%s,bmi-chip-id=%d,bmi-board-id=%d",
 945                          ath10k_bus_str(ar->hif.bus),
 946                          ar->id.bmi_chip_id,
 947                          ar->id.bmi_board_id);
 948                goto out;
 949        }
 950
 951        scnprintf(name, name_len,
 952                  "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x",
 953                  ath10k_bus_str(ar->hif.bus),
 954                  ar->id.vendor, ar->id.device,
 955                  ar->id.subsystem_vendor, ar->id.subsystem_device);
 956
 957out:
 958        ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot using board name '%s'\n", name);
 959
 960        return 0;
 961}
 962
 963static int ath10k_core_fetch_board_file(struct ath10k *ar)
 964{
 965        char boardname[100];
 966        int ret;
 967
 968        ret = ath10k_core_create_board_name(ar, boardname, sizeof(boardname));
 969        if (ret) {
 970                ath10k_err(ar, "failed to create board name: %d", ret);
 971                return ret;
 972        }
 973
 974        ar->bd_api = 2;
 975        ret = ath10k_core_fetch_board_data_api_n(ar, boardname,
 976                                                 ATH10K_BOARD_API2_FILE);
 977        if (!ret)
 978                goto success;
 979
 980        ar->bd_api = 1;
 981        ret = ath10k_core_fetch_board_data_api_1(ar);
 982        if (ret) {
 983                ath10k_err(ar, "failed to fetch board data\n");
 984                return ret;
 985        }
 986
 987success:
 988        ath10k_dbg(ar, ATH10K_DBG_BOOT, "using board api %d\n", ar->bd_api);
 989        return 0;
 990}
 991
 992static int ath10k_core_fetch_firmware_api_1(struct ath10k *ar)
 993{
 994        int ret = 0;
 995
 996        if (ar->hw_params.fw.fw == NULL) {
 997                ath10k_err(ar, "firmware file not defined\n");
 998                return -EINVAL;
 999        }
1000
1001        ar->firmware = ath10k_fetch_fw_file(ar,
1002                                            ar->hw_params.fw.dir,
1003                                            ar->hw_params.fw.fw);
1004        if (IS_ERR(ar->firmware)) {
1005                ret = PTR_ERR(ar->firmware);
1006                ath10k_err(ar, "could not fetch firmware (%d)\n", ret);
1007                goto err;
1008        }
1009
1010        ar->firmware_data = ar->firmware->data;
1011        ar->firmware_len = ar->firmware->size;
1012
1013        /* OTP may be undefined. If so, don't fetch it at all */
1014        if (ar->hw_params.fw.otp == NULL)
1015                return 0;
1016
1017        ar->otp = ath10k_fetch_fw_file(ar,
1018                                       ar->hw_params.fw.dir,
1019                                       ar->hw_params.fw.otp);
1020        if (IS_ERR(ar->otp)) {
1021                ret = PTR_ERR(ar->otp);
1022                ath10k_err(ar, "could not fetch otp (%d)\n", ret);
1023                goto err;
1024        }
1025
1026        ar->otp_data = ar->otp->data;
1027        ar->otp_len = ar->otp->size;
1028
1029        return 0;
1030
1031err:
1032        ath10k_core_free_firmware_files(ar);
1033        return ret;
1034}
1035
1036static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
1037{
1038        size_t magic_len, len, ie_len;
1039        int ie_id, i, index, bit, ret;
1040        struct ath10k_fw_ie *hdr;
1041        const u8 *data;
1042        __le32 *timestamp, *version;
1043
1044        /* first fetch the firmware file (firmware-*.bin) */
1045        ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name);
1046        if (IS_ERR(ar->firmware)) {
1047                ath10k_err(ar, "could not fetch firmware file '%s/%s': %ld\n",
1048                           ar->hw_params.fw.dir, name, PTR_ERR(ar->firmware));
1049                return PTR_ERR(ar->firmware);
1050        }
1051
1052        data = ar->firmware->data;
1053        len = ar->firmware->size;
1054
1055        /* magic also includes the null byte, check that as well */
1056        magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
1057
1058        if (len < magic_len) {
1059                ath10k_err(ar, "firmware file '%s/%s' too small to contain magic: %zu\n",
1060                           ar->hw_params.fw.dir, name, len);
1061                ret = -EINVAL;
1062                goto err;
1063        }
1064
1065        if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
1066                ath10k_err(ar, "invalid firmware magic\n");
1067                ret = -EINVAL;
1068                goto err;
1069        }
1070
1071        /* jump over the padding */
1072        magic_len = ALIGN(magic_len, 4);
1073
1074        len -= magic_len;
1075        data += magic_len;
1076
1077        /* loop elements */
1078        while (len > sizeof(struct ath10k_fw_ie)) {
1079                hdr = (struct ath10k_fw_ie *)data;
1080
1081                ie_id = le32_to_cpu(hdr->id);
1082                ie_len = le32_to_cpu(hdr->len);
1083
1084                len -= sizeof(*hdr);
1085                data += sizeof(*hdr);
1086
1087                if (len < ie_len) {
1088                        ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n",
1089                                   ie_id, len, ie_len);
1090                        ret = -EINVAL;
1091                        goto err;
1092                }
1093
1094                switch (ie_id) {
1095                case ATH10K_FW_IE_FW_VERSION:
1096                        if (ie_len > sizeof(ar->hw->wiphy->fw_version) - 1)
1097                                break;
1098
1099                        memcpy(ar->hw->wiphy->fw_version, data, ie_len);
1100                        ar->hw->wiphy->fw_version[ie_len] = '\0';
1101
1102                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1103                                   "found fw version %s\n",
1104                                    ar->hw->wiphy->fw_version);
1105                        break;
1106                case ATH10K_FW_IE_TIMESTAMP:
1107                        if (ie_len != sizeof(u32))
1108                                break;
1109
1110                        timestamp = (__le32 *)data;
1111
1112                        ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw timestamp %d\n",
1113                                   le32_to_cpup(timestamp));
1114                        break;
1115                case ATH10K_FW_IE_FEATURES:
1116                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1117                                   "found firmware features ie (%zd B)\n",
1118                                   ie_len);
1119
1120                        for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
1121                                index = i / 8;
1122                                bit = i % 8;
1123
1124                                if (index == ie_len)
1125                                        break;
1126
1127                                if (data[index] & (1 << bit)) {
1128                                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1129                                                   "Enabling feature bit: %i\n",
1130                                                   i);
1131                                        __set_bit(i, ar->fw_features);
1132                                }
1133                        }
1134
1135                        ath10k_dbg_dump(ar, ATH10K_DBG_BOOT, "features", "",
1136                                        ar->fw_features,
1137                                        sizeof(ar->fw_features));
1138                        break;
1139                case ATH10K_FW_IE_FW_IMAGE:
1140                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1141                                   "found fw image ie (%zd B)\n",
1142                                   ie_len);
1143
1144                        ar->firmware_data = data;
1145                        ar->firmware_len = ie_len;
1146
1147                        break;
1148                case ATH10K_FW_IE_OTP_IMAGE:
1149                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1150                                   "found otp image ie (%zd B)\n",
1151                                   ie_len);
1152
1153                        ar->otp_data = data;
1154                        ar->otp_len = ie_len;
1155
1156                        break;
1157                case ATH10K_FW_IE_WMI_OP_VERSION:
1158                        if (ie_len != sizeof(u32))
1159                                break;
1160
1161                        version = (__le32 *)data;
1162
1163                        ar->wmi.op_version = le32_to_cpup(version);
1164
1165                        ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw ie wmi op version %d\n",
1166                                   ar->wmi.op_version);
1167                        break;
1168                case ATH10K_FW_IE_HTT_OP_VERSION:
1169                        if (ie_len != sizeof(u32))
1170                                break;
1171
1172                        version = (__le32 *)data;
1173
1174                        ar->htt.op_version = le32_to_cpup(version);
1175
1176                        ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw ie htt op version %d\n",
1177                                   ar->htt.op_version);
1178                        break;
1179                case ATH10K_FW_IE_FW_CODE_SWAP_IMAGE:
1180                        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1181                                   "found fw code swap image ie (%zd B)\n",
1182                                   ie_len);
1183                        ar->swap.firmware_codeswap_data = data;
1184                        ar->swap.firmware_codeswap_len = ie_len;
1185                        break;
1186                default:
1187                        ath10k_warn(ar, "Unknown FW IE: %u\n",
1188                                    le32_to_cpu(hdr->id));
1189                        break;
1190                }
1191
1192                /* jump over the padding */
1193                ie_len = ALIGN(ie_len, 4);
1194
1195                len -= ie_len;
1196                data += ie_len;
1197        }
1198
1199        if (!ar->firmware_data || !ar->firmware_len) {
1200                ath10k_warn(ar, "No ATH10K_FW_IE_FW_IMAGE found from '%s/%s', skipping\n",
1201                            ar->hw_params.fw.dir, name);
1202                ret = -ENOMEDIUM;
1203                goto err;
1204        }
1205
1206        return 0;
1207
1208err:
1209        ath10k_core_free_firmware_files(ar);
1210        return ret;
1211}
1212
1213static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
1214{
1215        int ret;
1216
1217        /* calibration file is optional, don't check for any errors */
1218        ath10k_fetch_cal_file(ar);
1219
1220        ar->fw_api = 5;
1221        ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
1222
1223        ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API5_FILE);
1224        if (ret == 0)
1225                goto success;
1226
1227        ar->fw_api = 4;
1228        ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
1229
1230        ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API4_FILE);
1231        if (ret == 0)
1232                goto success;
1233
1234        ar->fw_api = 3;
1235        ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
1236
1237        ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API3_FILE);
1238        if (ret == 0)
1239                goto success;
1240
1241        ar->fw_api = 2;
1242        ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
1243
1244        ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE);
1245        if (ret == 0)
1246                goto success;
1247
1248        ar->fw_api = 1;
1249        ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
1250
1251        ret = ath10k_core_fetch_firmware_api_1(ar);
1252        if (ret)
1253                return ret;
1254
1255success:
1256        ath10k_dbg(ar, ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);
1257
1258        return 0;
1259}
1260
1261static int ath10k_download_cal_data(struct ath10k *ar)
1262{
1263        int ret;
1264
1265        ret = ath10k_download_cal_file(ar);
1266        if (ret == 0) {
1267                ar->cal_mode = ATH10K_CAL_MODE_FILE;
1268                goto done;
1269        }
1270
1271        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1272                   "boot did not find a calibration file, try DT next: %d\n",
1273                   ret);
1274
1275        ret = ath10k_download_cal_dt(ar);
1276        if (ret == 0) {
1277                ar->cal_mode = ATH10K_CAL_MODE_DT;
1278                goto done;
1279        }
1280
1281        ath10k_dbg(ar, ATH10K_DBG_BOOT,
1282                   "boot did not find DT entry, try OTP next: %d\n",
1283                   ret);
1284
1285        ret = ath10k_download_and_run_otp(ar);
1286        if (ret) {
1287                ath10k_err(ar, "failed to run otp: %d\n", ret);
1288                return ret;
1289        }
1290
1291        ar->cal_mode = ATH10K_CAL_MODE_OTP;
1292
1293done:
1294        ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot using calibration mode %s\n",
1295                   ath10k_cal_mode_str(ar->cal_mode));
1296        return 0;
1297}
1298
1299static int ath10k_init_uart(struct ath10k *ar)
1300{
1301        int ret;
1302
1303        /*
1304         * Explicitly setting UART prints to zero as target turns it on
1305         * based on scratch registers.
1306         */
1307        ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
1308        if (ret) {
1309                ath10k_warn(ar, "could not disable UART prints (%d)\n", ret);
1310                return ret;
1311        }
1312
1313        if (!uart_print)
1314                return 0;
1315
1316        ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, ar->hw_params.uart_pin);
1317        if (ret) {
1318                ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
1319                return ret;
1320        }
1321
1322        ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
1323        if (ret) {
1324                ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
1325                return ret;
1326        }
1327
1328        /* Set the UART baud rate to 19200. */
1329        ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200);
1330        if (ret) {
1331                ath10k_warn(ar, "could not set the baud rate (%d)\n", ret);
1332                return ret;
1333        }
1334
1335        ath10k_info(ar, "UART prints enabled\n");
1336        return 0;
1337}
1338
1339static int ath10k_init_hw_params(struct ath10k *ar)
1340{
1341        const struct ath10k_hw_params *uninitialized_var(hw_params);
1342        int i;
1343
1344        for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
1345                hw_params = &ath10k_hw_params_list[i];
1346
1347                if (hw_params->id == ar->target_version &&
1348                    hw_params->dev_id == ar->dev_id)
1349                        break;
1350        }
1351
1352        if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
1353                ath10k_err(ar, "Unsupported hardware version: 0x%x\n",
1354                           ar->target_version);
1355                return -EINVAL;
1356        }
1357
1358        ar->hw_params = *hw_params;
1359
1360        ath10k_dbg(ar, ATH10K_DBG_BOOT, "Hardware name %s version 0x%x\n",
1361                   ar->hw_params.name, ar->target_version);
1362
1363        return 0;
1364}
1365
1366static void ath10k_core_restart(struct work_struct *work)
1367{
1368        struct ath10k *ar = container_of(work, struct ath10k, restart_work);
1369
1370        set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
1371
1372        /* Place a barrier to make sure the compiler doesn't reorder
1373         * CRASH_FLUSH and calling other functions.
1374         */
1375        barrier();
1376
1377        ieee80211_stop_queues(ar->hw);
1378        ath10k_drain_tx(ar);
1379        complete_all(&ar->scan.started);
1380        complete_all(&ar->scan.completed);
1381        complete_all(&ar->scan.on_channel);
1382        complete_all(&ar->offchan_tx_completed);
1383        complete_all(&ar->install_key_done);
1384        complete_all(&ar->vdev_setup_done);
1385        complete_all(&ar->thermal.wmi_sync);
1386        wake_up(&ar->htt.empty_tx_wq);
1387        wake_up(&ar->wmi.tx_credits_wq);
1388        wake_up(&ar->peer_mapping_wq);
1389
1390        mutex_lock(&ar->conf_mutex);
1391
1392        switch (ar->state) {
1393        case ATH10K_STATE_ON:
1394                ar->state = ATH10K_STATE_RESTARTING;
1395                ath10k_hif_stop(ar);
1396                ath10k_scan_finish(ar);
1397                ieee80211_restart_hw(ar->hw);
1398                break;
1399        case ATH10K_STATE_OFF:
1400                /* this can happen if driver is being unloaded
1401                 * or if the crash happens during FW probing */
1402                ath10k_warn(ar, "cannot restart a device that hasn't been started\n");
1403                break;
1404        case ATH10K_STATE_RESTARTING:
1405                /* hw restart might be requested from multiple places */
1406                break;
1407        case ATH10K_STATE_RESTARTED:
1408                ar->state = ATH10K_STATE_WEDGED;
1409                /* fall through */
1410        case ATH10K_STATE_WEDGED:
1411                ath10k_warn(ar, "device is wedged, will not restart\n");
1412                break;
1413        case ATH10K_STATE_UTF:
1414                ath10k_warn(ar, "firmware restart in UTF mode not supported\n");
1415                break;
1416        }
1417
1418        mutex_unlock(&ar->conf_mutex);
1419}
1420
1421static int ath10k_core_init_firmware_features(struct ath10k *ar)
1422{
1423        if (test_bit(ATH10K_FW_FEATURE_WMI_10_2, ar->fw_features) &&
1424            !test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
1425                ath10k_err(ar, "feature bits corrupted: 10.2 feature requires 10.x feature to be set as well");
1426                return -EINVAL;
1427        }
1428
1429        if (ar->wmi.op_version >= ATH10K_FW_WMI_OP_VERSION_MAX) {
1430                ath10k_err(ar, "unsupported WMI OP version (max %d): %d\n",
1431                           ATH10K_FW_WMI_OP_VERSION_MAX, ar->wmi.op_version);
1432                return -EINVAL;
1433        }
1434
1435        ar->wmi.rx_decap_mode = ATH10K_HW_TXRX_NATIVE_WIFI;
1436        switch (ath10k_cryptmode_param) {
1437        case ATH10K_CRYPT_MODE_HW:
1438                clear_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags);
1439                clear_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags);
1440                break;
1441        case ATH10K_CRYPT_MODE_SW:
1442                if (!test_bit(ATH10K_FW_FEATURE_RAW_MODE_SUPPORT,
1443                              ar->fw_features)) {
1444                        ath10k_err(ar, "cryptmode > 0 requires raw mode support from firmware");
1445                        return -EINVAL;
1446                }
1447
1448                set_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags);
1449                set_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags);
1450                break;
1451        default:
1452                ath10k_info(ar, "invalid cryptmode: %d\n",
1453                            ath10k_cryptmode_param);
1454                return -EINVAL;
1455        }
1456
1457        ar->htt.max_num_amsdu = ATH10K_HTT_MAX_NUM_AMSDU_DEFAULT;
1458        ar->htt.max_num_ampdu = ATH10K_HTT_MAX_NUM_AMPDU_DEFAULT;
1459
1460        if (rawmode) {
1461                if (!test_bit(ATH10K_FW_FEATURE_RAW_MODE_SUPPORT,
1462                              ar->fw_features)) {
1463                        ath10k_err(ar, "rawmode = 1 requires support from firmware");
1464                        return -EINVAL;
1465                }
1466                set_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags);
1467        }
1468
1469        if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
1470                ar->wmi.rx_decap_mode = ATH10K_HW_TXRX_RAW;
1471
1472                /* Workaround:
1473                 *
1474                 * Firmware A-MSDU aggregation breaks with RAW Tx encap mode
1475                 * and causes enormous performance issues (malformed frames,
1476                 * etc).
1477                 *
1478                 * Disabling A-MSDU makes RAW mode stable with heavy traffic
1479                 * albeit a bit slower compared to regular operation.
1480                 */
1481                ar->htt.max_num_amsdu = 1;
1482        }
1483
1484        /* Backwards compatibility for firmwares without
1485         * ATH10K_FW_IE_WMI_OP_VERSION.
1486         */
1487        if (ar->wmi.op_version == ATH10K_FW_WMI_OP_VERSION_UNSET) {
1488                if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
1489                        if (test_bit(ATH10K_FW_FEATURE_WMI_10_2,
1490                                     ar->fw_features))
1491                                ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_2;
1492                        else
1493                                ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_1;
1494                } else {
1495                        ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_MAIN;
1496                }
1497        }
1498
1499        switch (ar->wmi.op_version) {
1500        case ATH10K_FW_WMI_OP_VERSION_MAIN:
1501                ar->max_num_peers = TARGET_NUM_PEERS;
1502                ar->max_num_stations = TARGET_NUM_STATIONS;
1503                ar->max_num_vdevs = TARGET_NUM_VDEVS;
1504                ar->htt.max_num_pending_tx = TARGET_NUM_MSDU_DESC;
1505                ar->fw_stats_req_mask = WMI_STAT_PDEV | WMI_STAT_VDEV |
1506                        WMI_STAT_PEER;
1507                ar->max_spatial_stream = WMI_MAX_SPATIAL_STREAM;
1508                break;
1509        case ATH10K_FW_WMI_OP_VERSION_10_1:
1510        case ATH10K_FW_WMI_OP_VERSION_10_2:
1511        case ATH10K_FW_WMI_OP_VERSION_10_2_4:
1512                if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
1513                        ar->max_num_peers = TARGET_10X_TX_STATS_NUM_PEERS;
1514                        ar->max_num_stations = TARGET_10X_TX_STATS_NUM_STATIONS;
1515                } else {
1516                        ar->max_num_peers = TARGET_10X_NUM_PEERS;
1517                        ar->max_num_stations = TARGET_10X_NUM_STATIONS;
1518                }
1519                ar->max_num_vdevs = TARGET_10X_NUM_VDEVS;
1520                ar->htt.max_num_pending_tx = TARGET_10X_NUM_MSDU_DESC;
1521                ar->fw_stats_req_mask = WMI_STAT_PEER;
1522                ar->max_spatial_stream = WMI_MAX_SPATIAL_STREAM;
1523                break;
1524        case ATH10K_FW_WMI_OP_VERSION_TLV:
1525                ar->max_num_peers = TARGET_TLV_NUM_PEERS;
1526                ar->max_num_stations = TARGET_TLV_NUM_STATIONS;
1527                ar->max_num_vdevs = TARGET_TLV_NUM_VDEVS;
1528                ar->max_num_tdls_vdevs = TARGET_TLV_NUM_TDLS_VDEVS;
1529                ar->htt.max_num_pending_tx = TARGET_TLV_NUM_MSDU_DESC;
1530                ar->wow.max_num_patterns = TARGET_TLV_NUM_WOW_PATTERNS;
1531                ar->fw_stats_req_mask = WMI_STAT_PDEV | WMI_STAT_VDEV |
1532                        WMI_STAT_PEER;
1533                ar->max_spatial_stream = WMI_MAX_SPATIAL_STREAM;
1534                break;
1535        case ATH10K_FW_WMI_OP_VERSION_10_4:
1536                ar->max_num_peers = TARGET_10_4_NUM_PEERS;
1537                ar->max_num_stations = TARGET_10_4_NUM_STATIONS;
1538                ar->num_active_peers = TARGET_10_4_ACTIVE_PEERS;
1539                ar->max_num_vdevs = TARGET_10_4_NUM_VDEVS;
1540                ar->num_tids = TARGET_10_4_TGT_NUM_TIDS;
1541                ar->htt.max_num_pending_tx = ar->hw_params.num_msdu_desc;
1542                ar->fw_stats_req_mask = WMI_STAT_PEER;
1543                ar->max_spatial_stream = ar->hw_params.max_spatial_stream;
1544                break;
1545        case ATH10K_FW_WMI_OP_VERSION_UNSET:
1546        case ATH10K_FW_WMI_OP_VERSION_MAX:
1547                WARN_ON(1);
1548                return -EINVAL;
1549        }
1550
1551        /* Backwards compatibility for firmwares without
1552         * ATH10K_FW_IE_HTT_OP_VERSION.
1553         */
1554        if (ar->htt.op_version == ATH10K_FW_HTT_OP_VERSION_UNSET) {
1555                switch (ar->wmi.op_version) {
1556                case ATH10K_FW_WMI_OP_VERSION_MAIN:
1557                        ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_MAIN;
1558                        break;
1559                case ATH10K_FW_WMI_OP_VERSION_10_1:
1560                case ATH10K_FW_WMI_OP_VERSION_10_2:
1561                case ATH10K_FW_WMI_OP_VERSION_10_2_4:
1562                        ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_10_1;
1563                        break;
1564                case ATH10K_FW_WMI_OP_VERSION_TLV:
1565                        ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_TLV;
1566                        break;
1567                case ATH10K_FW_WMI_OP_VERSION_10_4:
1568                case ATH10K_FW_WMI_OP_VERSION_UNSET:
1569                case ATH10K_FW_WMI_OP_VERSION_MAX:
1570                        WARN_ON(1);
1571                        return -EINVAL;
1572                }
1573        }
1574
1575        return 0;
1576}
1577
1578int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
1579{
1580        int status;
1581
1582        lockdep_assert_held(&ar->conf_mutex);
1583
1584        clear_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
1585
1586        ath10k_bmi_start(ar);
1587
1588        if (ath10k_init_configure_target(ar)) {
1589                status = -EINVAL;
1590                goto err;
1591        }
1592
1593        status = ath10k_download_cal_data(ar);
1594        if (status)
1595                goto err;
1596
1597        /* Some of of qca988x solutions are having global reset issue
1598         * during target initialization. Bypassing PLL setting before
1599         * downloading firmware and letting the SoC run on REF_CLK is
1600         * fixing the problem. Corresponding firmware change is also needed
1601         * to set the clock source once the target is initialized.
1602         */
1603        if (test_bit(ATH10K_FW_FEATURE_SUPPORTS_SKIP_CLOCK_INIT,
1604                     ar->fw_features)) {
1605                status = ath10k_bmi_write32(ar, hi_skip_clock_init, 1);
1606                if (status) {
1607                        ath10k_err(ar, "could not write to skip_clock_init: %d\n",
1608                                   status);
1609                        goto err;
1610                }
1611        }
1612
1613        status = ath10k_download_fw(ar, mode);
1614        if (status)
1615                goto err;
1616
1617        status = ath10k_init_uart(ar);
1618        if (status)
1619                goto err;
1620
1621        ar->htc.htc_ops.target_send_suspend_complete =
1622                ath10k_send_suspend_complete;
1623
1624        status = ath10k_htc_init(ar);
1625        if (status) {
1626                ath10k_err(ar, "could not init HTC (%d)\n", status);
1627                goto err;
1628        }
1629
1630        status = ath10k_bmi_done(ar);
1631        if (status)
1632                goto err;
1633
1634        status = ath10k_wmi_attach(ar);
1635        if (status) {
1636                ath10k_err(ar, "WMI attach failed: %d\n", status);
1637                goto err;
1638        }
1639
1640        status = ath10k_htt_init(ar);
1641        if (status) {
1642                ath10k_err(ar, "failed to init htt: %d\n", status);
1643                goto err_wmi_detach;
1644        }
1645
1646        status = ath10k_htt_tx_alloc(&ar->htt);
1647        if (status) {
1648                ath10k_err(ar, "failed to alloc htt tx: %d\n", status);
1649                goto err_wmi_detach;
1650        }
1651
1652        status = ath10k_htt_rx_alloc(&ar->htt);
1653        if (status) {
1654                ath10k_err(ar, "failed to alloc htt rx: %d\n", status);
1655                goto err_htt_tx_detach;
1656        }
1657
1658        status = ath10k_hif_start(ar);
1659        if (status) {
1660                ath10k_err(ar, "could not start HIF: %d\n", status);
1661                goto err_htt_rx_detach;
1662        }
1663
1664        status = ath10k_htc_wait_target(&ar->htc);
1665        if (status) {
1666                ath10k_err(ar, "failed to connect to HTC: %d\n", status);
1667                goto err_hif_stop;
1668        }
1669
1670        if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
1671                status = ath10k_htt_connect(&ar->htt);
1672                if (status) {
1673                        ath10k_err(ar, "failed to connect htt (%d)\n", status);
1674                        goto err_hif_stop;
1675                }
1676        }
1677
1678        status = ath10k_wmi_connect(ar);
1679        if (status) {
1680                ath10k_err(ar, "could not connect wmi: %d\n", status);
1681                goto err_hif_stop;
1682        }
1683
1684        status = ath10k_htc_start(&ar->htc);
1685        if (status) {
1686                ath10k_err(ar, "failed to start htc: %d\n", status);
1687                goto err_hif_stop;
1688        }
1689
1690        if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
1691                status = ath10k_wmi_wait_for_service_ready(ar);
1692                if (status) {
1693                        ath10k_warn(ar, "wmi service ready event not received");
1694                        goto err_hif_stop;
1695                }
1696        }
1697
1698        ath10k_dbg(ar, ATH10K_DBG_BOOT, "firmware %s booted\n",
1699                   ar->hw->wiphy->fw_version);
1700
1701        status = ath10k_wmi_cmd_init(ar);
1702        if (status) {
1703                ath10k_err(ar, "could not send WMI init command (%d)\n",
1704                           status);
1705                goto err_hif_stop;
1706        }
1707
1708        status = ath10k_wmi_wait_for_unified_ready(ar);
1709        if (status) {
1710                ath10k_err(ar, "wmi unified ready event not received\n");
1711                goto err_hif_stop;
1712        }
1713
1714        /* If firmware indicates Full Rx Reorder support it must be used in a
1715         * slightly different manner. Let HTT code know.
1716         */
1717        ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER,
1718                                                ar->wmi.svc_map));
1719
1720        status = ath10k_htt_rx_ring_refill(ar);
1721        if (status) {
1722                ath10k_err(ar, "failed to refill htt rx ring: %d\n", status);
1723                goto err_hif_stop;
1724        }
1725
1726        /* we don't care about HTT in UTF mode */
1727        if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
1728                status = ath10k_htt_setup(&ar->htt);
1729                if (status) {
1730                        ath10k_err(ar, "failed to setup htt: %d\n", status);
1731                        goto err_hif_stop;
1732                }
1733        }
1734
1735        status = ath10k_debug_start(ar);
1736        if (status)
1737                goto err_hif_stop;
1738
1739        ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
1740
1741        INIT_LIST_HEAD(&ar->arvifs);
1742
1743        return 0;
1744
1745err_hif_stop:
1746        ath10k_hif_stop(ar);
1747err_htt_rx_detach:
1748        ath10k_htt_rx_free(&ar->htt);
1749err_htt_tx_detach:
1750        ath10k_htt_tx_free(&ar->htt);
1751err_wmi_detach:
1752        ath10k_wmi_detach(ar);
1753err:
1754        return status;
1755}
1756EXPORT_SYMBOL(ath10k_core_start);
1757
1758int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt)
1759{
1760        int ret;
1761        unsigned long time_left;
1762
1763        reinit_completion(&ar->target_suspend);
1764
1765        ret = ath10k_wmi_pdev_suspend_target(ar, suspend_opt);
1766        if (ret) {
1767                ath10k_warn(ar, "could not suspend target (%d)\n", ret);
1768                return ret;
1769        }
1770
1771        time_left = wait_for_completion_timeout(&ar->target_suspend, 1 * HZ);
1772
1773        if (!time_left) {
1774                ath10k_warn(ar, "suspend timed out - target pause event never came\n");
1775                return -ETIMEDOUT;
1776        }
1777
1778        return 0;
1779}
1780
1781void ath10k_core_stop(struct ath10k *ar)
1782{
1783        lockdep_assert_held(&ar->conf_mutex);
1784        ath10k_debug_stop(ar);
1785
1786        /* try to suspend target */
1787        if (ar->state != ATH10K_STATE_RESTARTING &&
1788            ar->state != ATH10K_STATE_UTF)
1789                ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND_AND_DISABLE_INTR);
1790
1791        ath10k_hif_stop(ar);
1792        ath10k_htt_tx_free(&ar->htt);
1793        ath10k_htt_rx_free(&ar->htt);
1794        ath10k_wmi_detach(ar);
1795}
1796EXPORT_SYMBOL(ath10k_core_stop);
1797
1798/* mac80211 manages fw/hw initialization through start/stop hooks. However in
1799 * order to know what hw capabilities should be advertised to mac80211 it is
1800 * necessary to load the firmware (and tear it down immediately since start
1801 * hook will try to init it again) before registering */
1802static int ath10k_core_probe_fw(struct ath10k *ar)
1803{
1804        struct bmi_target_info target_info;
1805        int ret = 0;
1806
1807        ret = ath10k_hif_power_up(ar);
1808        if (ret) {
1809                ath10k_err(ar, "could not start pci hif (%d)\n", ret);
1810                return ret;
1811        }
1812
1813        memset(&target_info, 0, sizeof(target_info));
1814        ret = ath10k_bmi_get_target_info(ar, &target_info);
1815        if (ret) {
1816                ath10k_err(ar, "could not get target info (%d)\n", ret);
1817                goto err_power_down;
1818        }
1819
1820        ar->target_version = target_info.version;
1821        ar->hw->wiphy->hw_version = target_info.version;
1822
1823        ret = ath10k_init_hw_params(ar);
1824        if (ret) {
1825                ath10k_err(ar, "could not get hw params (%d)\n", ret);
1826                goto err_power_down;
1827        }
1828
1829        ret = ath10k_core_fetch_firmware_files(ar);
1830        if (ret) {
1831                ath10k_err(ar, "could not fetch firmware files (%d)\n", ret);
1832                goto err_power_down;
1833        }
1834
1835        ath10k_debug_print_hwfw_info(ar);
1836
1837        ret = ath10k_core_get_board_id_from_otp(ar);
1838        if (ret && ret != -EOPNOTSUPP) {
1839                ath10k_err(ar, "failed to get board id from otp: %d\n",
1840                           ret);
1841                return ret;
1842        }
1843
1844        ret = ath10k_core_fetch_board_file(ar);
1845        if (ret) {
1846                ath10k_err(ar, "failed to fetch board file: %d\n", ret);
1847                goto err_free_firmware_files;
1848        }
1849
1850        ath10k_debug_print_board_info(ar);
1851
1852        ret = ath10k_core_init_firmware_features(ar);
1853        if (ret) {
1854                ath10k_err(ar, "fatal problem with firmware features: %d\n",
1855                           ret);
1856                goto err_free_firmware_files;
1857        }
1858
1859        ret = ath10k_swap_code_seg_init(ar);
1860        if (ret) {
1861                ath10k_err(ar, "failed to initialize code swap segment: %d\n",
1862                           ret);
1863                goto err_free_firmware_files;
1864        }
1865
1866        mutex_lock(&ar->conf_mutex);
1867
1868        ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
1869        if (ret) {
1870                ath10k_err(ar, "could not init core (%d)\n", ret);
1871                goto err_unlock;
1872        }
1873
1874        ath10k_debug_print_boot_info(ar);
1875        ath10k_core_stop(ar);
1876
1877        mutex_unlock(&ar->conf_mutex);
1878
1879        ath10k_hif_power_down(ar);
1880        return 0;
1881
1882err_unlock:
1883        mutex_unlock(&ar->conf_mutex);
1884
1885err_free_firmware_files:
1886        ath10k_core_free_firmware_files(ar);
1887
1888err_power_down:
1889        ath10k_hif_power_down(ar);
1890
1891        return ret;
1892}
1893
1894static void ath10k_core_register_work(struct work_struct *work)
1895{
1896        struct ath10k *ar = container_of(work, struct ath10k, register_work);
1897        int status;
1898
1899        status = ath10k_core_probe_fw(ar);
1900        if (status) {
1901                ath10k_err(ar, "could not probe fw (%d)\n", status);
1902                goto err;
1903        }
1904
1905        status = ath10k_mac_register(ar);
1906        if (status) {
1907                ath10k_err(ar, "could not register to mac80211 (%d)\n", status);
1908                goto err_release_fw;
1909        }
1910
1911        status = ath10k_debug_register(ar);
1912        if (status) {
1913                ath10k_err(ar, "unable to initialize debugfs\n");
1914                goto err_unregister_mac;
1915        }
1916
1917        status = ath10k_spectral_create(ar);
1918        if (status) {
1919                ath10k_err(ar, "failed to initialize spectral\n");
1920                goto err_debug_destroy;
1921        }
1922
1923        status = ath10k_thermal_register(ar);
1924        if (status) {
1925                ath10k_err(ar, "could not register thermal device: %d\n",
1926                           status);
1927                goto err_spectral_destroy;
1928        }
1929
1930        set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags);
1931        return;
1932
1933err_spectral_destroy:
1934        ath10k_spectral_destroy(ar);
1935err_debug_destroy:
1936        ath10k_debug_destroy(ar);
1937err_unregister_mac:
1938        ath10k_mac_unregister(ar);
1939err_release_fw:
1940        ath10k_core_free_firmware_files(ar);
1941err:
1942        /* TODO: It's probably a good idea to release device from the driver
1943         * but calling device_release_driver() here will cause a deadlock.
1944         */
1945        return;
1946}
1947
1948int ath10k_core_register(struct ath10k *ar, u32 chip_id)
1949{
1950        ar->chip_id = chip_id;
1951        queue_work(ar->workqueue, &ar->register_work);
1952
1953        return 0;
1954}
1955EXPORT_SYMBOL(ath10k_core_register);
1956
1957void ath10k_core_unregister(struct ath10k *ar)
1958{
1959        cancel_work_sync(&ar->register_work);
1960
1961        if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags))
1962                return;
1963
1964        ath10k_thermal_unregister(ar);
1965        /* Stop spectral before unregistering from mac80211 to remove the
1966         * relayfs debugfs file cleanly. Otherwise the parent debugfs tree
1967         * would be already be free'd recursively, leading to a double free.
1968         */
1969        ath10k_spectral_destroy(ar);
1970
1971        /* We must unregister from mac80211 before we stop HTC and HIF.
1972         * Otherwise we will fail to submit commands to FW and mac80211 will be
1973         * unhappy about callback failures. */
1974        ath10k_mac_unregister(ar);
1975
1976        ath10k_testmode_destroy(ar);
1977
1978        ath10k_core_free_firmware_files(ar);
1979        ath10k_core_free_board_files(ar);
1980
1981        ath10k_debug_unregister(ar);
1982}
1983EXPORT_SYMBOL(ath10k_core_unregister);
1984
1985struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
1986                                  enum ath10k_bus bus,
1987                                  enum ath10k_hw_rev hw_rev,
1988                                  const struct ath10k_hif_ops *hif_ops)
1989{
1990        struct ath10k *ar;
1991        int ret;
1992
1993        ar = ath10k_mac_create(priv_size);
1994        if (!ar)
1995                return NULL;
1996
1997        ar->ath_common.priv = ar;
1998        ar->ath_common.hw = ar->hw;
1999        ar->dev = dev;
2000        ar->hw_rev = hw_rev;
2001        ar->hif.ops = hif_ops;
2002        ar->hif.bus = bus;
2003
2004        switch (hw_rev) {
2005        case ATH10K_HW_QCA988X:
2006                ar->regs = &qca988x_regs;
2007                ar->hw_values = &qca988x_values;
2008                break;
2009        case ATH10K_HW_QCA6174:
2010        case ATH10K_HW_QCA9377:
2011                ar->regs = &qca6174_regs;
2012                ar->hw_values = &qca6174_values;
2013                break;
2014        case ATH10K_HW_QCA99X0:
2015                ar->regs = &qca99x0_regs;
2016                ar->hw_values = &qca99x0_values;
2017                break;
2018        case ATH10K_HW_QCA4019:
2019                ar->regs = &qca4019_regs;
2020                ar->hw_values = &qca4019_values;
2021                break;
2022        default:
2023                ath10k_err(ar, "unsupported core hardware revision %d\n",
2024                           hw_rev);
2025                ret = -ENOTSUPP;
2026                goto err_free_mac;
2027        }
2028
2029        init_completion(&ar->scan.started);
2030        init_completion(&ar->scan.completed);
2031        init_completion(&ar->scan.on_channel);
2032        init_completion(&ar->target_suspend);
2033        init_completion(&ar->wow.wakeup_completed);
2034
2035        init_completion(&ar->install_key_done);
2036        init_completion(&ar->vdev_setup_done);
2037        init_completion(&ar->thermal.wmi_sync);
2038
2039        INIT_DELAYED_WORK(&ar->scan.timeout, ath10k_scan_timeout_work);
2040
2041        ar->workqueue = create_singlethread_workqueue("ath10k_wq");
2042        if (!ar->workqueue)
2043                goto err_free_mac;
2044
2045        ar->workqueue_aux = create_singlethread_workqueue("ath10k_aux_wq");
2046        if (!ar->workqueue_aux)
2047                goto err_free_wq;
2048
2049        mutex_init(&ar->conf_mutex);
2050        spin_lock_init(&ar->data_lock);
2051
2052        INIT_LIST_HEAD(&ar->peers);
2053        init_waitqueue_head(&ar->peer_mapping_wq);
2054        init_waitqueue_head(&ar->htt.empty_tx_wq);
2055        init_waitqueue_head(&ar->wmi.tx_credits_wq);
2056
2057        init_completion(&ar->offchan_tx_completed);
2058        INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
2059        skb_queue_head_init(&ar->offchan_tx_queue);
2060
2061        INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
2062        skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
2063
2064        INIT_WORK(&ar->register_work, ath10k_core_register_work);
2065        INIT_WORK(&ar->restart_work, ath10k_core_restart);
2066
2067        ret = ath10k_debug_create(ar);
2068        if (ret)
2069                goto err_free_aux_wq;
2070
2071        return ar;
2072
2073err_free_aux_wq:
2074        destroy_workqueue(ar->workqueue_aux);
2075err_free_wq:
2076        destroy_workqueue(ar->workqueue);
2077
2078err_free_mac:
2079        ath10k_mac_destroy(ar);
2080
2081        return NULL;
2082}
2083EXPORT_SYMBOL(ath10k_core_create);
2084
2085void ath10k_core_destroy(struct ath10k *ar)
2086{
2087        flush_workqueue(ar->workqueue);
2088        destroy_workqueue(ar->workqueue);
2089
2090        flush_workqueue(ar->workqueue_aux);
2091        destroy_workqueue(ar->workqueue_aux);
2092
2093        ath10k_debug_destroy(ar);
2094        ath10k_wmi_free_host_mem(ar);
2095        ath10k_mac_destroy(ar);
2096}
2097EXPORT_SYMBOL(ath10k_core_destroy);
2098
2099MODULE_AUTHOR("Qualcomm Atheros");
2100MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
2101MODULE_LICENSE("Dual BSD/GPL");
2102