linux/drivers/net/wireless/ath/ath6kl/init.c
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   1
   2/*
   3 * Copyright (c) 2011 Atheros Communications Inc.
   4 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
   5 *
   6 * Permission to use, copy, modify, and/or distribute this software for any
   7 * purpose with or without fee is hereby granted, provided that the above
   8 * copyright notice and this permission notice appear in all copies.
   9 *
  10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17 */
  18
  19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  20
  21#include <linux/moduleparam.h>
  22#include <linux/errno.h>
  23#include <linux/export.h>
  24#include <linux/of.h>
  25#include <linux/mmc/sdio_func.h>
  26#include <linux/vmalloc.h>
  27
  28#include "core.h"
  29#include "cfg80211.h"
  30#include "target.h"
  31#include "debug.h"
  32#include "hif-ops.h"
  33#include "htc-ops.h"
  34
  35static const struct ath6kl_hw hw_list[] = {
  36        {
  37                .id                             = AR6003_HW_2_0_VERSION,
  38                .name                           = "ar6003 hw 2.0",
  39                .dataset_patch_addr             = 0x57e884,
  40                .app_load_addr                  = 0x543180,
  41                .board_ext_data_addr            = 0x57e500,
  42                .reserved_ram_size              = 6912,
  43                .refclk_hz                      = 26000000,
  44                .uarttx_pin                     = 8,
  45                .flags                          = ATH6KL_HW_SDIO_CRC_ERROR_WAR,
  46
  47                /* hw2.0 needs override address hardcoded */
  48                .app_start_override_addr        = 0x944C00,
  49
  50                .fw = {
  51                        .dir            = AR6003_HW_2_0_FW_DIR,
  52                        .otp            = AR6003_HW_2_0_OTP_FILE,
  53                        .fw             = AR6003_HW_2_0_FIRMWARE_FILE,
  54                        .tcmd           = AR6003_HW_2_0_TCMD_FIRMWARE_FILE,
  55                        .patch          = AR6003_HW_2_0_PATCH_FILE,
  56                },
  57
  58                .fw_board               = AR6003_HW_2_0_BOARD_DATA_FILE,
  59                .fw_default_board       = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE,
  60        },
  61        {
  62                .id                             = AR6003_HW_2_1_1_VERSION,
  63                .name                           = "ar6003 hw 2.1.1",
  64                .dataset_patch_addr             = 0x57ff74,
  65                .app_load_addr                  = 0x1234,
  66                .board_ext_data_addr            = 0x542330,
  67                .reserved_ram_size              = 512,
  68                .refclk_hz                      = 26000000,
  69                .uarttx_pin                     = 8,
  70                .testscript_addr                = 0x57ef74,
  71                .flags                          = ATH6KL_HW_SDIO_CRC_ERROR_WAR,
  72
  73                .fw = {
  74                        .dir            = AR6003_HW_2_1_1_FW_DIR,
  75                        .otp            = AR6003_HW_2_1_1_OTP_FILE,
  76                        .fw             = AR6003_HW_2_1_1_FIRMWARE_FILE,
  77                        .tcmd           = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
  78                        .patch          = AR6003_HW_2_1_1_PATCH_FILE,
  79                        .utf            = AR6003_HW_2_1_1_UTF_FIRMWARE_FILE,
  80                        .testscript     = AR6003_HW_2_1_1_TESTSCRIPT_FILE,
  81                },
  82
  83                .fw_board               = AR6003_HW_2_1_1_BOARD_DATA_FILE,
  84                .fw_default_board = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
  85        },
  86        {
  87                .id                             = AR6004_HW_1_0_VERSION,
  88                .name                           = "ar6004 hw 1.0",
  89                .dataset_patch_addr             = 0x57e884,
  90                .app_load_addr                  = 0x1234,
  91                .board_ext_data_addr            = 0x437000,
  92                .reserved_ram_size              = 19456,
  93                .board_addr                     = 0x433900,
  94                .refclk_hz                      = 26000000,
  95                .uarttx_pin                     = 11,
  96                .flags                          = 0,
  97
  98                .fw = {
  99                        .dir            = AR6004_HW_1_0_FW_DIR,
 100                        .fw             = AR6004_HW_1_0_FIRMWARE_FILE,
 101                },
 102
 103                .fw_board               = AR6004_HW_1_0_BOARD_DATA_FILE,
 104                .fw_default_board       = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
 105        },
 106        {
 107                .id                             = AR6004_HW_1_1_VERSION,
 108                .name                           = "ar6004 hw 1.1",
 109                .dataset_patch_addr             = 0x57e884,
 110                .app_load_addr                  = 0x1234,
 111                .board_ext_data_addr            = 0x437000,
 112                .reserved_ram_size              = 11264,
 113                .board_addr                     = 0x43d400,
 114                .refclk_hz                      = 40000000,
 115                .uarttx_pin                     = 11,
 116                .flags                          = 0,
 117                .fw = {
 118                        .dir            = AR6004_HW_1_1_FW_DIR,
 119                        .fw             = AR6004_HW_1_1_FIRMWARE_FILE,
 120                },
 121
 122                .fw_board               = AR6004_HW_1_1_BOARD_DATA_FILE,
 123                .fw_default_board       = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
 124        },
 125        {
 126                .id                             = AR6004_HW_1_2_VERSION,
 127                .name                           = "ar6004 hw 1.2",
 128                .dataset_patch_addr             = 0x436ecc,
 129                .app_load_addr                  = 0x1234,
 130                .board_ext_data_addr            = 0x437000,
 131                .reserved_ram_size              = 9216,
 132                .board_addr                     = 0x435c00,
 133                .refclk_hz                      = 40000000,
 134                .uarttx_pin                     = 11,
 135                .flags                          = 0,
 136
 137                .fw = {
 138                        .dir            = AR6004_HW_1_2_FW_DIR,
 139                        .fw             = AR6004_HW_1_2_FIRMWARE_FILE,
 140                },
 141                .fw_board               = AR6004_HW_1_2_BOARD_DATA_FILE,
 142                .fw_default_board       = AR6004_HW_1_2_DEFAULT_BOARD_DATA_FILE,
 143        },
 144        {
 145                .id                             = AR6004_HW_1_3_VERSION,
 146                .name                           = "ar6004 hw 1.3",
 147                .dataset_patch_addr             = 0x437860,
 148                .app_load_addr                  = 0x1234,
 149                .board_ext_data_addr            = 0x437000,
 150                .reserved_ram_size              = 7168,
 151                .board_addr                     = 0x436400,
 152                .refclk_hz                      = 0,
 153                .uarttx_pin                     = 11,
 154                .flags                          = 0,
 155
 156                .fw = {
 157                        .dir            = AR6004_HW_1_3_FW_DIR,
 158                        .fw             = AR6004_HW_1_3_FIRMWARE_FILE,
 159                        .tcmd           = AR6004_HW_1_3_TCMD_FIRMWARE_FILE,
 160                        .utf            = AR6004_HW_1_3_UTF_FIRMWARE_FILE,
 161                        .testscript     = AR6004_HW_1_3_TESTSCRIPT_FILE,
 162                },
 163
 164                .fw_board               = AR6004_HW_1_3_BOARD_DATA_FILE,
 165                .fw_default_board       = AR6004_HW_1_3_DEFAULT_BOARD_DATA_FILE,
 166        },
 167        {
 168                .id                             = AR6004_HW_3_0_VERSION,
 169                .name                           = "ar6004 hw 3.0",
 170                .dataset_patch_addr             = 0,
 171                .app_load_addr                  = 0x1234,
 172                .board_ext_data_addr            = 0,
 173                .reserved_ram_size              = 7168,
 174                .board_addr                     = 0x436400,
 175                .testscript_addr                = 0,
 176                .uarttx_pin                     = 11,
 177                .flags                          = 0,
 178
 179                .fw = {
 180                        .dir            = AR6004_HW_3_0_FW_DIR,
 181                        .fw             = AR6004_HW_3_0_FIRMWARE_FILE,
 182                        .tcmd           = AR6004_HW_3_0_TCMD_FIRMWARE_FILE,
 183                        .utf            = AR6004_HW_3_0_UTF_FIRMWARE_FILE,
 184                        .testscript     = AR6004_HW_3_0_TESTSCRIPT_FILE,
 185                },
 186
 187                .fw_board               = AR6004_HW_3_0_BOARD_DATA_FILE,
 188                .fw_default_board       = AR6004_HW_3_0_DEFAULT_BOARD_DATA_FILE,
 189        },
 190};
 191
 192/*
 193 * Include definitions here that can be used to tune the WLAN module
 194 * behavior. Different customers can tune the behavior as per their needs,
 195 * here.
 196 */
 197
 198/*
 199 * This configuration item enable/disable keepalive support.
 200 * Keepalive support: In the absence of any data traffic to AP, null
 201 * frames will be sent to the AP at periodic interval, to keep the association
 202 * active. This configuration item defines the periodic interval.
 203 * Use value of zero to disable keepalive support
 204 * Default: 60 seconds
 205 */
 206#define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
 207
 208/*
 209 * This configuration item sets the value of disconnect timeout
 210 * Firmware delays sending the disconnec event to the host for this
 211 * timeout after is gets disconnected from the current AP.
 212 * If the firmware successly roams within the disconnect timeout
 213 * it sends a new connect event
 214 */
 215#define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
 216
 217
 218#define ATH6KL_DATA_OFFSET    64
 219struct sk_buff *ath6kl_buf_alloc(int size)
 220{
 221        struct sk_buff *skb;
 222        u16 reserved;
 223
 224        /* Add chacheline space at front and back of buffer */
 225        reserved = roundup((2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
 226                   sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES, 4);
 227        skb = dev_alloc_skb(size + reserved);
 228
 229        if (skb)
 230                skb_reserve(skb, reserved - L1_CACHE_BYTES);
 231        return skb;
 232}
 233
 234void ath6kl_init_profile_info(struct ath6kl_vif *vif)
 235{
 236        vif->ssid_len = 0;
 237        memset(vif->ssid, 0, sizeof(vif->ssid));
 238
 239        vif->dot11_auth_mode = OPEN_AUTH;
 240        vif->auth_mode = NONE_AUTH;
 241        vif->prwise_crypto = NONE_CRYPT;
 242        vif->prwise_crypto_len = 0;
 243        vif->grp_crypto = NONE_CRYPT;
 244        vif->grp_crypto_len = 0;
 245        memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 246        memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
 247        memset(vif->bssid, 0, sizeof(vif->bssid));
 248        vif->bss_ch = 0;
 249}
 250
 251static int ath6kl_set_host_app_area(struct ath6kl *ar)
 252{
 253        u32 address, data;
 254        struct host_app_area host_app_area;
 255
 256        /* Fetch the address of the host_app_area_s
 257         * instance in the host interest area */
 258        address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
 259        address = TARG_VTOP(ar->target_type, address);
 260
 261        if (ath6kl_diag_read32(ar, address, &data))
 262                return -EIO;
 263
 264        address = TARG_VTOP(ar->target_type, data);
 265        host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
 266        if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
 267                              sizeof(struct host_app_area)))
 268                return -EIO;
 269
 270        return 0;
 271}
 272
 273static inline void set_ac2_ep_map(struct ath6kl *ar,
 274                                  u8 ac,
 275                                  enum htc_endpoint_id ep)
 276{
 277        ar->ac2ep_map[ac] = ep;
 278        ar->ep2ac_map[ep] = ac;
 279}
 280
 281/* connect to a service */
 282static int ath6kl_connectservice(struct ath6kl *ar,
 283                                 struct htc_service_connect_req  *con_req,
 284                                 char *desc)
 285{
 286        int status;
 287        struct htc_service_connect_resp response;
 288
 289        memset(&response, 0, sizeof(response));
 290
 291        status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
 292        if (status) {
 293                ath6kl_err("failed to connect to %s service status:%d\n",
 294                           desc, status);
 295                return status;
 296        }
 297
 298        switch (con_req->svc_id) {
 299        case WMI_CONTROL_SVC:
 300                if (test_bit(WMI_ENABLED, &ar->flag))
 301                        ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
 302                ar->ctrl_ep = response.endpoint;
 303                break;
 304        case WMI_DATA_BE_SVC:
 305                set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
 306                break;
 307        case WMI_DATA_BK_SVC:
 308                set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
 309                break;
 310        case WMI_DATA_VI_SVC:
 311                set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
 312                break;
 313        case WMI_DATA_VO_SVC:
 314                set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
 315                break;
 316        default:
 317                ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
 318                return -EINVAL;
 319        }
 320
 321        return 0;
 322}
 323
 324static int ath6kl_init_service_ep(struct ath6kl *ar)
 325{
 326        struct htc_service_connect_req connect;
 327
 328        memset(&connect, 0, sizeof(connect));
 329
 330        /* these fields are the same for all service endpoints */
 331        connect.ep_cb.tx_comp_multi = ath6kl_tx_complete;
 332        connect.ep_cb.rx = ath6kl_rx;
 333        connect.ep_cb.rx_refill = ath6kl_rx_refill;
 334        connect.ep_cb.tx_full = ath6kl_tx_queue_full;
 335
 336        /*
 337         * Set the max queue depth so that our ath6kl_tx_queue_full handler
 338         * gets called.
 339        */
 340        connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
 341        connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
 342        if (!connect.ep_cb.rx_refill_thresh)
 343                connect.ep_cb.rx_refill_thresh++;
 344
 345        /* connect to control service */
 346        connect.svc_id = WMI_CONTROL_SVC;
 347        if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
 348                return -EIO;
 349
 350        connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
 351
 352        /*
 353         * Limit the HTC message size on the send path, although e can
 354         * receive A-MSDU frames of 4K, we will only send ethernet-sized
 355         * (802.3) frames on the send path.
 356         */
 357        connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
 358
 359        /*
 360         * To reduce the amount of committed memory for larger A_MSDU
 361         * frames, use the recv-alloc threshold mechanism for larger
 362         * packets.
 363         */
 364        connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
 365        connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
 366
 367        /*
 368         * For the remaining data services set the connection flag to
 369         * reduce dribbling, if configured to do so.
 370         */
 371        connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
 372        connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
 373        connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
 374
 375        connect.svc_id = WMI_DATA_BE_SVC;
 376
 377        if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
 378                return -EIO;
 379
 380        /* connect to back-ground map this to WMI LOW_PRI */
 381        connect.svc_id = WMI_DATA_BK_SVC;
 382        if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
 383                return -EIO;
 384
 385        /* connect to Video service, map this to HI PRI */
 386        connect.svc_id = WMI_DATA_VI_SVC;
 387        if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
 388                return -EIO;
 389
 390        /*
 391         * Connect to VO service, this is currently not mapped to a WMI
 392         * priority stream due to historical reasons. WMI originally
 393         * defined 3 priorities over 3 mailboxes We can change this when
 394         * WMI is reworked so that priorities are not dependent on
 395         * mailboxes.
 396         */
 397        connect.svc_id = WMI_DATA_VO_SVC;
 398        if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
 399                return -EIO;
 400
 401        return 0;
 402}
 403
 404void ath6kl_init_control_info(struct ath6kl_vif *vif)
 405{
 406        ath6kl_init_profile_info(vif);
 407        vif->def_txkey_index = 0;
 408        memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 409        vif->ch_hint = 0;
 410}
 411
 412/*
 413 * Set HTC/Mbox operational parameters, this can only be called when the
 414 * target is in the BMI phase.
 415 */
 416static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
 417                                 u8 htc_ctrl_buf)
 418{
 419        int status;
 420        u32 blk_size;
 421
 422        blk_size = ar->mbox_info.block_size;
 423
 424        if (htc_ctrl_buf)
 425                blk_size |=  ((u32)htc_ctrl_buf) << 16;
 426
 427        /* set the host interest area for the block size */
 428        status = ath6kl_bmi_write_hi32(ar, hi_mbox_io_block_sz, blk_size);
 429        if (status) {
 430                ath6kl_err("bmi_write_memory for IO block size failed\n");
 431                goto out;
 432        }
 433
 434        ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
 435                   blk_size,
 436                   ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
 437
 438        if (mbox_isr_yield_val) {
 439                /* set the host interest area for the mbox ISR yield limit */
 440                status = ath6kl_bmi_write_hi32(ar, hi_mbox_isr_yield_limit,
 441                                               mbox_isr_yield_val);
 442                if (status) {
 443                        ath6kl_err("bmi_write_memory for yield limit failed\n");
 444                        goto out;
 445                }
 446        }
 447
 448out:
 449        return status;
 450}
 451
 452static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
 453{
 454        int ret;
 455
 456        /*
 457         * Configure the device for rx dot11 header rules. "0,0" are the
 458         * default values. Required if checksum offload is needed. Set
 459         * RxMetaVersion to 2.
 460         */
 461        ret = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
 462                                                 ar->rx_meta_ver, 0, 0);
 463        if (ret) {
 464                ath6kl_err("unable to set the rx frame format: %d\n", ret);
 465                return ret;
 466        }
 467
 468        if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) {
 469                ret = ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
 470                                              IGNORE_PS_FAIL_DURING_SCAN);
 471                if (ret) {
 472                        ath6kl_err("unable to set power save fail event policy: %d\n",
 473                                   ret);
 474                        return ret;
 475                }
 476        }
 477
 478        if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) {
 479                ret = ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
 480                                                   WMI_FOLLOW_BARKER_IN_ERP);
 481                if (ret) {
 482                        ath6kl_err("unable to set barker preamble policy: %d\n",
 483                                   ret);
 484                        return ret;
 485                }
 486        }
 487
 488        ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
 489                                           WLAN_CONFIG_KEEP_ALIVE_INTERVAL);
 490        if (ret) {
 491                ath6kl_err("unable to set keep alive interval: %d\n", ret);
 492                return ret;
 493        }
 494
 495        ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
 496                                         WLAN_CONFIG_DISCONNECT_TIMEOUT);
 497        if (ret) {
 498                ath6kl_err("unable to set disconnect timeout: %d\n", ret);
 499                return ret;
 500        }
 501
 502        if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) {
 503                ret = ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED);
 504                if (ret) {
 505                        ath6kl_err("unable to set txop bursting: %d\n", ret);
 506                        return ret;
 507                }
 508        }
 509
 510        if (ar->p2p && (ar->vif_max == 1 || idx)) {
 511                ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
 512                                              P2P_FLAG_CAPABILITIES_REQ |
 513                                              P2P_FLAG_MACADDR_REQ |
 514                                              P2P_FLAG_HMODEL_REQ);
 515                if (ret) {
 516                        ath6kl_dbg(ATH6KL_DBG_TRC,
 517                                   "failed to request P2P capabilities (%d) - assuming P2P not supported\n",
 518                                   ret);
 519                        ar->p2p = false;
 520                }
 521        }
 522
 523        if (ar->p2p && (ar->vif_max == 1 || idx)) {
 524                /* Enable Probe Request reporting for P2P */
 525                ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
 526                if (ret) {
 527                        ath6kl_dbg(ATH6KL_DBG_TRC,
 528                                   "failed to enable Probe Request reporting (%d)\n",
 529                                   ret);
 530                }
 531        }
 532
 533        return ret;
 534}
 535
 536int ath6kl_configure_target(struct ath6kl *ar)
 537{
 538        u32 param, ram_reserved_size;
 539        u8 fw_iftype, fw_mode = 0, fw_submode = 0;
 540        int i, status;
 541
 542        param = !!(ar->conf_flags & ATH6KL_CONF_UART_DEBUG);
 543        if (ath6kl_bmi_write_hi32(ar, hi_serial_enable, param)) {
 544                ath6kl_err("bmi_write_memory for uart debug failed\n");
 545                return -EIO;
 546        }
 547
 548        /*
 549         * Note: Even though the firmware interface type is
 550         * chosen as BSS_STA for all three interfaces, can
 551         * be configured to IBSS/AP as long as the fw submode
 552         * remains normal mode (0 - AP, STA and IBSS). But
 553         * due to an target assert in firmware only one interface is
 554         * configured for now.
 555         */
 556        fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
 557
 558        for (i = 0; i < ar->vif_max; i++)
 559                fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
 560
 561        /*
 562         * Submodes when fw does not support dynamic interface
 563         * switching:
 564         *              vif[0] - AP/STA/IBSS
 565         *              vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
 566         *              vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
 567         * Otherwise, All the interface are initialized to p2p dev.
 568         */
 569
 570        if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
 571                     ar->fw_capabilities)) {
 572                for (i = 0; i < ar->vif_max; i++)
 573                        fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 574                                (i * HI_OPTION_FW_SUBMODE_BITS);
 575        } else {
 576                for (i = 0; i < ar->max_norm_iface; i++)
 577                        fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
 578                                (i * HI_OPTION_FW_SUBMODE_BITS);
 579
 580                for (i = ar->max_norm_iface; i < ar->vif_max; i++)
 581                        fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 582                                (i * HI_OPTION_FW_SUBMODE_BITS);
 583
 584                if (ar->p2p && ar->vif_max == 1)
 585                        fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
 586        }
 587
 588        if (ath6kl_bmi_write_hi32(ar, hi_app_host_interest,
 589                                  HTC_PROTOCOL_VERSION) != 0) {
 590                ath6kl_err("bmi_write_memory for htc version failed\n");
 591                return -EIO;
 592        }
 593
 594        /* set the firmware mode to STA/IBSS/AP */
 595        param = 0;
 596
 597        if (ath6kl_bmi_read_hi32(ar, hi_option_flag, &param) != 0) {
 598                ath6kl_err("bmi_read_memory for setting fwmode failed\n");
 599                return -EIO;
 600        }
 601
 602        param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
 603        param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
 604        param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
 605
 606        param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
 607        param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
 608
 609        if (ath6kl_bmi_write_hi32(ar, hi_option_flag, param) != 0) {
 610                ath6kl_err("bmi_write_memory for setting fwmode failed\n");
 611                return -EIO;
 612        }
 613
 614        ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
 615
 616        /*
 617         * Hardcode the address use for the extended board data
 618         * Ideally this should be pre-allocate by the OS at boot time
 619         * But since it is a new feature and board data is loaded
 620         * at init time, we have to workaround this from host.
 621         * It is difficult to patch the firmware boot code,
 622         * but possible in theory.
 623         */
 624
 625        if ((ar->target_type == TARGET_TYPE_AR6003) ||
 626            (ar->version.target_ver == AR6004_HW_1_3_VERSION) ||
 627            (ar->version.target_ver == AR6004_HW_3_0_VERSION)) {
 628                param = ar->hw.board_ext_data_addr;
 629                ram_reserved_size = ar->hw.reserved_ram_size;
 630
 631                if (ath6kl_bmi_write_hi32(ar, hi_board_ext_data, param) != 0) {
 632                        ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
 633                        return -EIO;
 634                }
 635
 636                if (ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz,
 637                                          ram_reserved_size) != 0) {
 638                        ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
 639                        return -EIO;
 640                }
 641        }
 642
 643        /* set the block size for the target */
 644        if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
 645                /* use default number of control buffers */
 646                return -EIO;
 647
 648        /* Configure GPIO AR600x UART */
 649        status = ath6kl_bmi_write_hi32(ar, hi_dbg_uart_txpin,
 650                                       ar->hw.uarttx_pin);
 651        if (status)
 652                return status;
 653
 654        /* Only set the baud rate if we're actually doing debug */
 655        if (ar->conf_flags & ATH6KL_CONF_UART_DEBUG) {
 656                status = ath6kl_bmi_write_hi32(ar, hi_desired_baud_rate,
 657                                               ar->hw.uarttx_rate);
 658                if (status)
 659                        return status;
 660        }
 661
 662        /* Configure target refclk_hz */
 663        if (ar->hw.refclk_hz != 0) {
 664                status = ath6kl_bmi_write_hi32(ar, hi_refclk_hz,
 665                                               ar->hw.refclk_hz);
 666                if (status)
 667                        return status;
 668        }
 669
 670        return 0;
 671}
 672
 673/* firmware upload */
 674static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
 675                         u8 **fw, size_t *fw_len)
 676{
 677        const struct firmware *fw_entry;
 678        int ret;
 679
 680        ret = request_firmware(&fw_entry, filename, ar->dev);
 681        if (ret)
 682                return ret;
 683
 684        *fw_len = fw_entry->size;
 685        *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
 686
 687        if (*fw == NULL)
 688                ret = -ENOMEM;
 689
 690        release_firmware(fw_entry);
 691
 692        return ret;
 693}
 694
 695#ifdef CONFIG_OF
 696/*
 697 * Check the device tree for a board-id and use it to construct
 698 * the pathname to the firmware file.  Used (for now) to find a
 699 * fallback to the "bdata.bin" file--typically a symlink to the
 700 * appropriate board-specific file.
 701 */
 702static bool check_device_tree(struct ath6kl *ar)
 703{
 704        static const char *board_id_prop = "atheros,board-id";
 705        struct device_node *node;
 706        char board_filename[64];
 707        const char *board_id;
 708        int ret;
 709
 710        for_each_compatible_node(node, NULL, "atheros,ath6kl") {
 711                board_id = of_get_property(node, board_id_prop, NULL);
 712                if (board_id == NULL) {
 713                        ath6kl_warn("No \"%s\" property on %s node.\n",
 714                                    board_id_prop, node->name);
 715                        continue;
 716                }
 717                snprintf(board_filename, sizeof(board_filename),
 718                         "%s/bdata.%s.bin", ar->hw.fw.dir, board_id);
 719
 720                ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
 721                                    &ar->fw_board_len);
 722                if (ret) {
 723                        ath6kl_err("Failed to get DT board file %s: %d\n",
 724                                   board_filename, ret);
 725                        continue;
 726                }
 727                of_node_put(node);
 728                return true;
 729        }
 730        return false;
 731}
 732#else
 733static bool check_device_tree(struct ath6kl *ar)
 734{
 735        return false;
 736}
 737#endif /* CONFIG_OF */
 738
 739static int ath6kl_fetch_board_file(struct ath6kl *ar)
 740{
 741        const char *filename;
 742        int ret;
 743
 744        if (ar->fw_board != NULL)
 745                return 0;
 746
 747        if (WARN_ON(ar->hw.fw_board == NULL))
 748                return -EINVAL;
 749
 750        filename = ar->hw.fw_board;
 751
 752        ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 753                            &ar->fw_board_len);
 754        if (ret == 0) {
 755                /* managed to get proper board file */
 756                return 0;
 757        }
 758
 759        if (check_device_tree(ar)) {
 760                /* got board file from device tree */
 761                return 0;
 762        }
 763
 764        /* there was no proper board file, try to use default instead */
 765        ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
 766                    filename, ret);
 767
 768        filename = ar->hw.fw_default_board;
 769
 770        ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 771                            &ar->fw_board_len);
 772        if (ret) {
 773                ath6kl_err("Failed to get default board file %s: %d\n",
 774                           filename, ret);
 775                return ret;
 776        }
 777
 778        ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
 779        ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
 780
 781        return 0;
 782}
 783
 784static int ath6kl_fetch_otp_file(struct ath6kl *ar)
 785{
 786        char filename[100];
 787        int ret;
 788
 789        if (ar->fw_otp != NULL)
 790                return 0;
 791
 792        if (ar->hw.fw.otp == NULL) {
 793                ath6kl_dbg(ATH6KL_DBG_BOOT,
 794                           "no OTP file configured for this hw\n");
 795                return 0;
 796        }
 797
 798        snprintf(filename, sizeof(filename), "%s/%s",
 799                 ar->hw.fw.dir, ar->hw.fw.otp);
 800
 801        ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
 802                            &ar->fw_otp_len);
 803        if (ret) {
 804                ath6kl_err("Failed to get OTP file %s: %d\n",
 805                           filename, ret);
 806                return ret;
 807        }
 808
 809        return 0;
 810}
 811
 812static int ath6kl_fetch_testmode_file(struct ath6kl *ar)
 813{
 814        char filename[100];
 815        int ret;
 816
 817        if (ar->testmode == 0)
 818                return 0;
 819
 820        ath6kl_dbg(ATH6KL_DBG_BOOT, "testmode %d\n", ar->testmode);
 821
 822        if (ar->testmode == 2) {
 823                if (ar->hw.fw.utf == NULL) {
 824                        ath6kl_warn("testmode 2 not supported\n");
 825                        return -EOPNOTSUPP;
 826                }
 827
 828                snprintf(filename, sizeof(filename), "%s/%s",
 829                         ar->hw.fw.dir, ar->hw.fw.utf);
 830        } else {
 831                if (ar->hw.fw.tcmd == NULL) {
 832                        ath6kl_warn("testmode 1 not supported\n");
 833                        return -EOPNOTSUPP;
 834                }
 835
 836                snprintf(filename, sizeof(filename), "%s/%s",
 837                         ar->hw.fw.dir, ar->hw.fw.tcmd);
 838        }
 839
 840        set_bit(TESTMODE, &ar->flag);
 841
 842        ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 843        if (ret) {
 844                ath6kl_err("Failed to get testmode %d firmware file %s: %d\n",
 845                           ar->testmode, filename, ret);
 846                return ret;
 847        }
 848
 849        return 0;
 850}
 851
 852static int ath6kl_fetch_fw_file(struct ath6kl *ar)
 853{
 854        char filename[100];
 855        int ret;
 856
 857        if (ar->fw != NULL)
 858                return 0;
 859
 860        /* FIXME: remove WARN_ON() as we won't support FW API 1 for long */
 861        if (WARN_ON(ar->hw.fw.fw == NULL))
 862                return -EINVAL;
 863
 864        snprintf(filename, sizeof(filename), "%s/%s",
 865                 ar->hw.fw.dir, ar->hw.fw.fw);
 866
 867        ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 868        if (ret) {
 869                ath6kl_err("Failed to get firmware file %s: %d\n",
 870                           filename, ret);
 871                return ret;
 872        }
 873
 874        return 0;
 875}
 876
 877static int ath6kl_fetch_patch_file(struct ath6kl *ar)
 878{
 879        char filename[100];
 880        int ret;
 881
 882        if (ar->fw_patch != NULL)
 883                return 0;
 884
 885        if (ar->hw.fw.patch == NULL)
 886                return 0;
 887
 888        snprintf(filename, sizeof(filename), "%s/%s",
 889                 ar->hw.fw.dir, ar->hw.fw.patch);
 890
 891        ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
 892                            &ar->fw_patch_len);
 893        if (ret) {
 894                ath6kl_err("Failed to get patch file %s: %d\n",
 895                           filename, ret);
 896                return ret;
 897        }
 898
 899        return 0;
 900}
 901
 902static int ath6kl_fetch_testscript_file(struct ath6kl *ar)
 903{
 904        char filename[100];
 905        int ret;
 906
 907        if (ar->testmode != 2)
 908                return 0;
 909
 910        if (ar->fw_testscript != NULL)
 911                return 0;
 912
 913        if (ar->hw.fw.testscript == NULL)
 914                return 0;
 915
 916        snprintf(filename, sizeof(filename), "%s/%s",
 917                 ar->hw.fw.dir, ar->hw.fw.testscript);
 918
 919        ret = ath6kl_get_fw(ar, filename, &ar->fw_testscript,
 920                                &ar->fw_testscript_len);
 921        if (ret) {
 922                ath6kl_err("Failed to get testscript file %s: %d\n",
 923                           filename, ret);
 924                return ret;
 925        }
 926
 927        return 0;
 928}
 929
 930static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
 931{
 932        int ret;
 933
 934        ret = ath6kl_fetch_otp_file(ar);
 935        if (ret)
 936                return ret;
 937
 938        ret = ath6kl_fetch_fw_file(ar);
 939        if (ret)
 940                return ret;
 941
 942        ret = ath6kl_fetch_patch_file(ar);
 943        if (ret)
 944                return ret;
 945
 946        ret = ath6kl_fetch_testscript_file(ar);
 947        if (ret)
 948                return ret;
 949
 950        return 0;
 951}
 952
 953static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name)
 954{
 955        size_t magic_len, len, ie_len;
 956        const struct firmware *fw;
 957        struct ath6kl_fw_ie *hdr;
 958        char filename[100];
 959        const u8 *data;
 960        int ret, ie_id, i, index, bit;
 961        __le32 *val;
 962
 963        snprintf(filename, sizeof(filename), "%s/%s", ar->hw.fw.dir, name);
 964
 965        ret = request_firmware(&fw, filename, ar->dev);
 966        if (ret) {
 967                ath6kl_err("Failed request firmware, rv: %d\n", ret);
 968                return ret;
 969        }
 970
 971        data = fw->data;
 972        len = fw->size;
 973
 974        /* magic also includes the null byte, check that as well */
 975        magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
 976
 977        if (len < magic_len) {
 978                ath6kl_err("Magic length is invalid, len: %zd  magic_len: %zd\n",
 979                           len, magic_len);
 980                ret = -EINVAL;
 981                goto out;
 982        }
 983
 984        if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
 985                ath6kl_err("Magic is invalid, magic_len: %zd\n",
 986                           magic_len);
 987                ret = -EINVAL;
 988                goto out;
 989        }
 990
 991        len -= magic_len;
 992        data += magic_len;
 993
 994        /* loop elements */
 995        while (len > sizeof(struct ath6kl_fw_ie)) {
 996                /* hdr is unaligned! */
 997                hdr = (struct ath6kl_fw_ie *) data;
 998
 999                ie_id = le32_to_cpup(&hdr->id);
1000                ie_len = le32_to_cpup(&hdr->len);
1001
1002                len -= sizeof(*hdr);
1003                data += sizeof(*hdr);
1004
1005                ath6kl_dbg(ATH6KL_DBG_BOOT, "ie-id: %d  len: %zd (0x%zx)\n",
1006                           ie_id, ie_len, ie_len);
1007
1008                if (len < ie_len) {
1009                        ath6kl_err("IE len is invalid, len: %zd  ie_len: %zd  ie-id: %d\n",
1010                                   len, ie_len, ie_id);
1011                        ret = -EINVAL;
1012                        goto out;
1013                }
1014
1015                switch (ie_id) {
1016                case ATH6KL_FW_IE_FW_VERSION:
1017                        strlcpy(ar->wiphy->fw_version, data,
1018                                min(sizeof(ar->wiphy->fw_version), ie_len+1));
1019
1020                        ath6kl_dbg(ATH6KL_DBG_BOOT,
1021                                   "found fw version %s\n",
1022                                    ar->wiphy->fw_version);
1023                        break;
1024                case ATH6KL_FW_IE_OTP_IMAGE:
1025                        ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
1026                                   ie_len);
1027
1028                        ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
1029
1030                        if (ar->fw_otp == NULL) {
1031                                ath6kl_err("fw_otp cannot be allocated\n");
1032                                ret = -ENOMEM;
1033                                goto out;
1034                        }
1035
1036                        ar->fw_otp_len = ie_len;
1037                        break;
1038                case ATH6KL_FW_IE_FW_IMAGE:
1039                        ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
1040                                   ie_len);
1041
1042                        /* in testmode we already might have a fw file */
1043                        if (ar->fw != NULL)
1044                                break;
1045
1046                        ar->fw = vmalloc(ie_len);
1047
1048                        if (ar->fw == NULL) {
1049                                ath6kl_err("fw storage cannot be allocated, len: %zd\n", ie_len);
1050                                ret = -ENOMEM;
1051                                goto out;
1052                        }
1053
1054                        memcpy(ar->fw, data, ie_len);
1055                        ar->fw_len = ie_len;
1056                        break;
1057                case ATH6KL_FW_IE_PATCH_IMAGE:
1058                        ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
1059                                   ie_len);
1060
1061                        ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
1062
1063                        if (ar->fw_patch == NULL) {
1064                                ath6kl_err("fw_patch storage cannot be allocated, len: %zd\n", ie_len);
1065                                ret = -ENOMEM;
1066                                goto out;
1067                        }
1068
1069                        ar->fw_patch_len = ie_len;
1070                        break;
1071                case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
1072                        val = (__le32 *) data;
1073                        ar->hw.reserved_ram_size = le32_to_cpup(val);
1074
1075                        ath6kl_dbg(ATH6KL_DBG_BOOT,
1076                                   "found reserved ram size ie %d\n",
1077                                   ar->hw.reserved_ram_size);
1078                        break;
1079                case ATH6KL_FW_IE_CAPABILITIES:
1080                        ath6kl_dbg(ATH6KL_DBG_BOOT,
1081                                   "found firmware capabilities ie (%zd B)\n",
1082                                   ie_len);
1083
1084                        for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
1085                                index = i / 8;
1086                                bit = i % 8;
1087
1088                                if (index == ie_len)
1089                                        break;
1090
1091                                if (data[index] & (1 << bit))
1092                                        __set_bit(i, ar->fw_capabilities);
1093                        }
1094
1095                        ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
1096                                        ar->fw_capabilities,
1097                                        sizeof(ar->fw_capabilities));
1098                        break;
1099                case ATH6KL_FW_IE_PATCH_ADDR:
1100                        if (ie_len != sizeof(*val))
1101                                break;
1102
1103                        val = (__le32 *) data;
1104                        ar->hw.dataset_patch_addr = le32_to_cpup(val);
1105
1106                        ath6kl_dbg(ATH6KL_DBG_BOOT,
1107                                   "found patch address ie 0x%x\n",
1108                                   ar->hw.dataset_patch_addr);
1109                        break;
1110                case ATH6KL_FW_IE_BOARD_ADDR:
1111                        if (ie_len != sizeof(*val))
1112                                break;
1113
1114                        val = (__le32 *) data;
1115                        ar->hw.board_addr = le32_to_cpup(val);
1116
1117                        ath6kl_dbg(ATH6KL_DBG_BOOT,
1118                                   "found board address ie 0x%x\n",
1119                                   ar->hw.board_addr);
1120                        break;
1121                case ATH6KL_FW_IE_VIF_MAX:
1122                        if (ie_len != sizeof(*val))
1123                                break;
1124
1125                        val = (__le32 *) data;
1126                        ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
1127                                            ATH6KL_VIF_MAX);
1128
1129                        if (ar->vif_max > 1 && !ar->p2p)
1130                                ar->max_norm_iface = 2;
1131
1132                        ath6kl_dbg(ATH6KL_DBG_BOOT,
1133                                   "found vif max ie %d\n", ar->vif_max);
1134                        break;
1135                default:
1136                        ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
1137                                   le32_to_cpup(&hdr->id));
1138                        break;
1139                }
1140
1141                len -= ie_len;
1142                data += ie_len;
1143        };
1144
1145        ret = 0;
1146out:
1147        release_firmware(fw);
1148
1149        return ret;
1150}
1151
1152int ath6kl_init_fetch_firmwares(struct ath6kl *ar)
1153{
1154        int ret;
1155
1156        ret = ath6kl_fetch_board_file(ar);
1157        if (ret)
1158                return ret;
1159
1160        ret = ath6kl_fetch_testmode_file(ar);
1161        if (ret)
1162                return ret;
1163
1164        ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API5_FILE);
1165        if (ret == 0) {
1166                ar->fw_api = 5;
1167                goto out;
1168        }
1169
1170        ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API4_FILE);
1171        if (ret == 0) {
1172                ar->fw_api = 4;
1173                goto out;
1174        }
1175
1176        ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API3_FILE);
1177        if (ret == 0) {
1178                ar->fw_api = 3;
1179                goto out;
1180        }
1181
1182        ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API2_FILE);
1183        if (ret == 0) {
1184                ar->fw_api = 2;
1185                goto out;
1186        }
1187
1188        ret = ath6kl_fetch_fw_api1(ar);
1189        if (ret)
1190                return ret;
1191
1192        ar->fw_api = 1;
1193
1194out:
1195        ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api %d\n", ar->fw_api);
1196
1197        return 0;
1198}
1199
1200static int ath6kl_upload_board_file(struct ath6kl *ar)
1201{
1202        u32 board_address, board_ext_address, param;
1203        u32 board_data_size, board_ext_data_size;
1204        int ret;
1205
1206        if (WARN_ON(ar->fw_board == NULL))
1207                return -ENOENT;
1208
1209        /*
1210         * Determine where in Target RAM to write Board Data.
1211         * For AR6004, host determine Target RAM address for
1212         * writing board data.
1213         */
1214        if (ar->hw.board_addr != 0) {
1215                board_address = ar->hw.board_addr;
1216                ath6kl_bmi_write_hi32(ar, hi_board_data,
1217                                      board_address);
1218        } else {
1219                ret = ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address);
1220                if (ret) {
1221                        ath6kl_err("Failed to get board file target address.\n");
1222                        return ret;
1223                }
1224        }
1225
1226        /* determine where in target ram to write extended board data */
1227        ret = ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address);
1228        if (ret) {
1229                ath6kl_err("Failed to get extended board file target address.\n");
1230                return ret;
1231        }
1232
1233        if (ar->target_type == TARGET_TYPE_AR6003 &&
1234            board_ext_address == 0) {
1235                ath6kl_err("Failed to get board file target address.\n");
1236                return -EINVAL;
1237        }
1238
1239        switch (ar->target_type) {
1240        case TARGET_TYPE_AR6003:
1241                board_data_size = AR6003_BOARD_DATA_SZ;
1242                board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1243                if (ar->fw_board_len > (board_data_size + board_ext_data_size))
1244                        board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ_V2;
1245                break;
1246        case TARGET_TYPE_AR6004:
1247                board_data_size = AR6004_BOARD_DATA_SZ;
1248                board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1249                break;
1250        default:
1251                WARN_ON(1);
1252                return -EINVAL;
1253        }
1254
1255        if (board_ext_address &&
1256            ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1257                /* write extended board data */
1258                ath6kl_dbg(ATH6KL_DBG_BOOT,
1259                           "writing extended board data to 0x%x (%d B)\n",
1260                           board_ext_address, board_ext_data_size);
1261
1262                ret = ath6kl_bmi_write(ar, board_ext_address,
1263                                       ar->fw_board + board_data_size,
1264                                       board_ext_data_size);
1265                if (ret) {
1266                        ath6kl_err("Failed to write extended board data: %d\n",
1267                                   ret);
1268                        return ret;
1269                }
1270
1271                /* record that extended board data is initialized */
1272                param = (board_ext_data_size << 16) | 1;
1273
1274                ath6kl_bmi_write_hi32(ar, hi_board_ext_data_config, param);
1275        }
1276
1277        if (ar->fw_board_len < board_data_size) {
1278                ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1279                ret = -EINVAL;
1280                return ret;
1281        }
1282
1283        ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1284                   board_address, board_data_size);
1285
1286        ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1287                               board_data_size);
1288
1289        if (ret) {
1290                ath6kl_err("Board file bmi write failed: %d\n", ret);
1291                return ret;
1292        }
1293
1294        /* record the fact that Board Data IS initialized */
1295        if ((ar->version.target_ver == AR6004_HW_1_3_VERSION) ||
1296            (ar->version.target_ver == AR6004_HW_3_0_VERSION))
1297                param = board_data_size;
1298        else
1299                param = 1;
1300
1301        ath6kl_bmi_write_hi32(ar, hi_board_data_initialized, param);
1302
1303        return ret;
1304}
1305
1306static int ath6kl_upload_otp(struct ath6kl *ar)
1307{
1308        u32 address, param;
1309        bool from_hw = false;
1310        int ret;
1311
1312        if (ar->fw_otp == NULL)
1313                return 0;
1314
1315        address = ar->hw.app_load_addr;
1316
1317        ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1318                   ar->fw_otp_len);
1319
1320        ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1321                                       ar->fw_otp_len);
1322        if (ret) {
1323                ath6kl_err("Failed to upload OTP file: %d\n", ret);
1324                return ret;
1325        }
1326
1327        /* read firmware start address */
1328        ret = ath6kl_bmi_read_hi32(ar, hi_app_start, &address);
1329
1330        if (ret) {
1331                ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1332                return ret;
1333        }
1334
1335        if (ar->hw.app_start_override_addr == 0) {
1336                ar->hw.app_start_override_addr = address;
1337                from_hw = true;
1338        }
1339
1340        ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1341                   from_hw ? " (from hw)" : "",
1342                   ar->hw.app_start_override_addr);
1343
1344        /* execute the OTP code */
1345        ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1346                   ar->hw.app_start_override_addr);
1347        param = 0;
1348        ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1349
1350        return ret;
1351}
1352
1353static int ath6kl_upload_firmware(struct ath6kl *ar)
1354{
1355        u32 address;
1356        int ret;
1357
1358        if (WARN_ON(ar->fw == NULL))
1359                return 0;
1360
1361        address = ar->hw.app_load_addr;
1362
1363        ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1364                   address, ar->fw_len);
1365
1366        ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1367
1368        if (ret) {
1369                ath6kl_err("Failed to write firmware: %d\n", ret);
1370                return ret;
1371        }
1372
1373        /*
1374         * Set starting address for firmware
1375         * Don't need to setup app_start override addr on AR6004
1376         */
1377        if (ar->target_type != TARGET_TYPE_AR6004) {
1378                address = ar->hw.app_start_override_addr;
1379                ath6kl_bmi_set_app_start(ar, address);
1380        }
1381        return ret;
1382}
1383
1384static int ath6kl_upload_patch(struct ath6kl *ar)
1385{
1386        u32 address;
1387        int ret;
1388
1389        if (ar->fw_patch == NULL)
1390                return 0;
1391
1392        address = ar->hw.dataset_patch_addr;
1393
1394        ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1395                   address, ar->fw_patch_len);
1396
1397        ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1398        if (ret) {
1399                ath6kl_err("Failed to write patch file: %d\n", ret);
1400                return ret;
1401        }
1402
1403        ath6kl_bmi_write_hi32(ar, hi_dset_list_head, address);
1404
1405        return 0;
1406}
1407
1408static int ath6kl_upload_testscript(struct ath6kl *ar)
1409{
1410        u32 address;
1411        int ret;
1412
1413        if (ar->testmode != 2)
1414                return 0;
1415
1416        if (ar->fw_testscript == NULL)
1417                return 0;
1418
1419        address = ar->hw.testscript_addr;
1420
1421        ath6kl_dbg(ATH6KL_DBG_BOOT, "writing testscript to 0x%x (%zd B)\n",
1422                   address, ar->fw_testscript_len);
1423
1424        ret = ath6kl_bmi_write(ar, address, ar->fw_testscript,
1425                ar->fw_testscript_len);
1426        if (ret) {
1427                ath6kl_err("Failed to write testscript file: %d\n", ret);
1428                return ret;
1429        }
1430
1431        ath6kl_bmi_write_hi32(ar, hi_ota_testscript, address);
1432
1433        if ((ar->version.target_ver != AR6004_HW_1_3_VERSION) &&
1434            (ar->version.target_ver != AR6004_HW_3_0_VERSION))
1435                ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz, 4096);
1436
1437        ath6kl_bmi_write_hi32(ar, hi_test_apps_related, 1);
1438
1439        return 0;
1440}
1441
1442static int ath6kl_init_upload(struct ath6kl *ar)
1443{
1444        u32 param, options, sleep, address;
1445        int status = 0;
1446
1447        if (ar->target_type != TARGET_TYPE_AR6003 &&
1448            ar->target_type != TARGET_TYPE_AR6004)
1449                return -EINVAL;
1450
1451        /* temporarily disable system sleep */
1452        address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1453        status = ath6kl_bmi_reg_read(ar, address, &param);
1454        if (status)
1455                return status;
1456
1457        options = param;
1458
1459        param |= ATH6KL_OPTION_SLEEP_DISABLE;
1460        status = ath6kl_bmi_reg_write(ar, address, param);
1461        if (status)
1462                return status;
1463
1464        address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1465        status = ath6kl_bmi_reg_read(ar, address, &param);
1466        if (status)
1467                return status;
1468
1469        sleep = param;
1470
1471        param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1472        status = ath6kl_bmi_reg_write(ar, address, param);
1473        if (status)
1474                return status;
1475
1476        ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1477                   options, sleep);
1478
1479        /* program analog PLL register */
1480        /* no need to control 40/44MHz clock on AR6004 */
1481        if (ar->target_type != TARGET_TYPE_AR6004) {
1482                status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1483                                              0xF9104001);
1484
1485                if (status)
1486                        return status;
1487
1488                /* Run at 80/88MHz by default */
1489                param = SM(CPU_CLOCK_STANDARD, 1);
1490
1491                address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1492                status = ath6kl_bmi_reg_write(ar, address, param);
1493                if (status)
1494                        return status;
1495        }
1496
1497        param = 0;
1498        address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1499        param = SM(LPO_CAL_ENABLE, 1);
1500        status = ath6kl_bmi_reg_write(ar, address, param);
1501        if (status)
1502                return status;
1503
1504        /* WAR to avoid SDIO CRC err */
1505        if (ar->hw.flags & ATH6KL_HW_SDIO_CRC_ERROR_WAR) {
1506                ath6kl_err("temporary war to avoid sdio crc error\n");
1507
1508                param = 0x28;
1509                address = GPIO_BASE_ADDRESS + GPIO_PIN9_ADDRESS;
1510                status = ath6kl_bmi_reg_write(ar, address, param);
1511                if (status)
1512                        return status;
1513
1514                param = 0x20;
1515
1516                address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1517                status = ath6kl_bmi_reg_write(ar, address, param);
1518                if (status)
1519                        return status;
1520
1521                address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1522                status = ath6kl_bmi_reg_write(ar, address, param);
1523                if (status)
1524                        return status;
1525
1526                address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1527                status = ath6kl_bmi_reg_write(ar, address, param);
1528                if (status)
1529                        return status;
1530
1531                address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1532                status = ath6kl_bmi_reg_write(ar, address, param);
1533                if (status)
1534                        return status;
1535        }
1536
1537        /* write EEPROM data to Target RAM */
1538        status = ath6kl_upload_board_file(ar);
1539        if (status)
1540                return status;
1541
1542        /* transfer One time Programmable data */
1543        status = ath6kl_upload_otp(ar);
1544        if (status)
1545                return status;
1546
1547        /* Download Target firmware */
1548        status = ath6kl_upload_firmware(ar);
1549        if (status)
1550                return status;
1551
1552        status = ath6kl_upload_patch(ar);
1553        if (status)
1554                return status;
1555
1556        /* Download the test script */
1557        status = ath6kl_upload_testscript(ar);
1558        if (status)
1559                return status;
1560
1561        /* Restore system sleep */
1562        address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1563        status = ath6kl_bmi_reg_write(ar, address, sleep);
1564        if (status)
1565                return status;
1566
1567        address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1568        param = options | 0x20;
1569        status = ath6kl_bmi_reg_write(ar, address, param);
1570        if (status)
1571                return status;
1572
1573        return status;
1574}
1575
1576int ath6kl_init_hw_params(struct ath6kl *ar)
1577{
1578        const struct ath6kl_hw *uninitialized_var(hw);
1579        int i;
1580
1581        for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1582                hw = &hw_list[i];
1583
1584                if (hw->id == ar->version.target_ver)
1585                        break;
1586        }
1587
1588        if (i == ARRAY_SIZE(hw_list)) {
1589                ath6kl_err("Unsupported hardware version: 0x%x\n",
1590                           ar->version.target_ver);
1591                return -EINVAL;
1592        }
1593
1594        ar->hw = *hw;
1595
1596        ath6kl_dbg(ATH6KL_DBG_BOOT,
1597                   "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1598                   ar->version.target_ver, ar->target_type,
1599                   ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1600        ath6kl_dbg(ATH6KL_DBG_BOOT,
1601                   "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1602                   ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1603                   ar->hw.reserved_ram_size);
1604        ath6kl_dbg(ATH6KL_DBG_BOOT,
1605                   "refclk_hz %d uarttx_pin %d",
1606                   ar->hw.refclk_hz, ar->hw.uarttx_pin);
1607
1608        return 0;
1609}
1610
1611static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1612{
1613        switch (type) {
1614        case ATH6KL_HIF_TYPE_SDIO:
1615                return "sdio";
1616        case ATH6KL_HIF_TYPE_USB:
1617                return "usb";
1618        }
1619
1620        return NULL;
1621}
1622
1623
1624static const struct fw_capa_str_map {
1625        int id;
1626        const char *name;
1627} fw_capa_map[] = {
1628        { ATH6KL_FW_CAPABILITY_HOST_P2P, "host-p2p" },
1629        { ATH6KL_FW_CAPABILITY_SCHED_SCAN, "sched-scan" },
1630        { ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, "sta-p2pdev-duplex" },
1631        { ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, "inactivity-timeout" },
1632        { ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, "rsn-cap-override" },
1633        { ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, "wow-mc-filter" },
1634        { ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, "bmiss-enhance" },
1635        { ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, "sscan-match-list" },
1636        { ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, "rssi-scan-thold" },
1637        { ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, "custom-mac-addr" },
1638        { ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, "tx-err-notify" },
1639        { ATH6KL_FW_CAPABILITY_REGDOMAIN, "regdomain" },
1640        { ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, "sched-scan-v2" },
1641        { ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL, "hb-poll" },
1642        { ATH6KL_FW_CAPABILITY_64BIT_RATES, "64bit-rates" },
1643        { ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, "ap-inactivity-mins" },
1644        { ATH6KL_FW_CAPABILITY_MAP_LP_ENDPOINT, "map-lp-endpoint" },
1645        { ATH6KL_FW_CAPABILITY_RATETABLE_MCS15, "ratetable-mcs15" },
1646        { ATH6KL_FW_CAPABILITY_NO_IP_CHECKSUM, "no-ip-checksum" },
1647};
1648
1649static const char *ath6kl_init_get_fw_capa_name(unsigned int id)
1650{
1651        int i;
1652
1653        for (i = 0; i < ARRAY_SIZE(fw_capa_map); i++) {
1654                if (fw_capa_map[i].id == id)
1655                        return fw_capa_map[i].name;
1656        }
1657
1658        return "<unknown>";
1659}
1660
1661static void ath6kl_init_get_fwcaps(struct ath6kl *ar, char *buf, size_t buf_len)
1662{
1663        u8 *data = (u8 *) ar->fw_capabilities;
1664        size_t trunc_len, len = 0;
1665        int i, index, bit;
1666        char *trunc = "...";
1667
1668        for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
1669                index = i / 8;
1670                bit = i % 8;
1671
1672                if (index >= sizeof(ar->fw_capabilities) * 4)
1673                        break;
1674
1675                if (buf_len - len < 4) {
1676                        ath6kl_warn("firmware capability buffer too small!\n");
1677
1678                        /* add "..." to the end of string */
1679                        trunc_len = strlen(trunc) + 1;
1680                        strncpy(buf + buf_len - trunc_len, trunc, trunc_len);
1681
1682                        return;
1683                }
1684
1685                if (data[index] & (1 << bit)) {
1686                        len += scnprintf(buf + len, buf_len - len, "%s,",
1687                                            ath6kl_init_get_fw_capa_name(i));
1688                }
1689        }
1690
1691        /* overwrite the last comma */
1692        if (len > 0)
1693                len--;
1694
1695        buf[len] = '\0';
1696}
1697
1698static int ath6kl_init_hw_reset(struct ath6kl *ar)
1699{
1700        ath6kl_dbg(ATH6KL_DBG_BOOT, "cold resetting the device");
1701
1702        return ath6kl_diag_write32(ar, RESET_CONTROL_ADDRESS,
1703                                   cpu_to_le32(RESET_CONTROL_COLD_RST));
1704}
1705
1706static int __ath6kl_init_hw_start(struct ath6kl *ar)
1707{
1708        long timeleft;
1709        int ret, i;
1710        char buf[200];
1711
1712        ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1713
1714        ret = ath6kl_hif_power_on(ar);
1715        if (ret)
1716                return ret;
1717
1718        ret = ath6kl_configure_target(ar);
1719        if (ret)
1720                goto err_power_off;
1721
1722        ret = ath6kl_init_upload(ar);
1723        if (ret)
1724                goto err_power_off;
1725
1726        /* Do we need to finish the BMI phase */
1727        ret = ath6kl_bmi_done(ar);
1728        if (ret)
1729                goto err_power_off;
1730
1731        /*
1732         * The reason we have to wait for the target here is that the
1733         * driver layer has to init BMI in order to set the host block
1734         * size.
1735         */
1736        ret = ath6kl_htc_wait_target(ar->htc_target);
1737
1738        if (ret == -ETIMEDOUT) {
1739                /*
1740                 * Most likely USB target is in odd state after reboot and
1741                 * needs a reset. A cold reset makes the whole device
1742                 * disappear from USB bus and initialisation starts from
1743                 * beginning.
1744                 */
1745                ath6kl_warn("htc wait target timed out, resetting device\n");
1746                ath6kl_init_hw_reset(ar);
1747                goto err_power_off;
1748        } else if (ret) {
1749                ath6kl_err("htc wait target failed: %d\n", ret);
1750                goto err_power_off;
1751        }
1752
1753        ret = ath6kl_init_service_ep(ar);
1754        if (ret) {
1755                ath6kl_err("Endpoint service initilisation failed: %d\n", ret);
1756                goto err_cleanup_scatter;
1757        }
1758
1759        /* setup credit distribution */
1760        ath6kl_htc_credit_setup(ar->htc_target, &ar->credit_state_info);
1761
1762        /* start HTC */
1763        ret = ath6kl_htc_start(ar->htc_target);
1764        if (ret) {
1765                /* FIXME: call this */
1766                ath6kl_cookie_cleanup(ar);
1767                goto err_cleanup_scatter;
1768        }
1769
1770        /* Wait for Wmi event to be ready */
1771        timeleft = wait_event_interruptible_timeout(ar->event_wq,
1772                                                    test_bit(WMI_READY,
1773                                                             &ar->flag),
1774                                                    WMI_TIMEOUT);
1775        if (timeleft <= 0) {
1776                clear_bit(WMI_READY, &ar->flag);
1777                ath6kl_err("wmi is not ready or wait was interrupted: %ld\n",
1778                           timeleft);
1779                ret = -EIO;
1780                goto err_htc_stop;
1781        }
1782
1783        ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1784
1785        if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1786                ath6kl_info("%s %s fw %s api %d%s\n",
1787                            ar->hw.name,
1788                            ath6kl_init_get_hif_name(ar->hif_type),
1789                            ar->wiphy->fw_version,
1790                            ar->fw_api,
1791                            test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1792                ath6kl_init_get_fwcaps(ar, buf, sizeof(buf));
1793                ath6kl_info("firmware supports: %s\n", buf);
1794        }
1795
1796        if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1797                ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1798                           ATH6KL_ABI_VERSION, ar->version.abi_ver);
1799                ret = -EIO;
1800                goto err_htc_stop;
1801        }
1802
1803        ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1804
1805        /* communicate the wmi protocol verision to the target */
1806        /* FIXME: return error */
1807        if ((ath6kl_set_host_app_area(ar)) != 0)
1808                ath6kl_err("unable to set the host app area\n");
1809
1810        for (i = 0; i < ar->vif_max; i++) {
1811                ret = ath6kl_target_config_wlan_params(ar, i);
1812                if (ret)
1813                        goto err_htc_stop;
1814        }
1815
1816        return 0;
1817
1818err_htc_stop:
1819        ath6kl_htc_stop(ar->htc_target);
1820err_cleanup_scatter:
1821        ath6kl_hif_cleanup_scatter(ar);
1822err_power_off:
1823        ath6kl_hif_power_off(ar);
1824
1825        return ret;
1826}
1827
1828int ath6kl_init_hw_start(struct ath6kl *ar)
1829{
1830        int err;
1831
1832        err = __ath6kl_init_hw_start(ar);
1833        if (err)
1834                return err;
1835        ar->state = ATH6KL_STATE_ON;
1836        return 0;
1837}
1838
1839static int __ath6kl_init_hw_stop(struct ath6kl *ar)
1840{
1841        int ret;
1842
1843        ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1844
1845        ath6kl_htc_stop(ar->htc_target);
1846
1847        ath6kl_hif_stop(ar);
1848
1849        ath6kl_bmi_reset(ar);
1850
1851        ret = ath6kl_hif_power_off(ar);
1852        if (ret)
1853                ath6kl_warn("failed to power off hif: %d\n", ret);
1854
1855        return 0;
1856}
1857
1858int ath6kl_init_hw_stop(struct ath6kl *ar)
1859{
1860        int err;
1861
1862        err = __ath6kl_init_hw_stop(ar);
1863        if (err)
1864                return err;
1865        ar->state = ATH6KL_STATE_OFF;
1866        return 0;
1867}
1868
1869void ath6kl_init_hw_restart(struct ath6kl *ar)
1870{
1871        clear_bit(WMI_READY, &ar->flag);
1872
1873        ath6kl_cfg80211_stop_all(ar);
1874
1875        if (__ath6kl_init_hw_stop(ar)) {
1876                ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to stop during fw error recovery\n");
1877                return;
1878        }
1879
1880        if (__ath6kl_init_hw_start(ar)) {
1881                ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to restart during fw error recovery\n");
1882                return;
1883        }
1884}
1885
1886void ath6kl_stop_txrx(struct ath6kl *ar)
1887{
1888        struct ath6kl_vif *vif, *tmp_vif;
1889        int i;
1890
1891        set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1892
1893        if (down_interruptible(&ar->sem)) {
1894                ath6kl_err("down_interruptible failed\n");
1895                return;
1896        }
1897
1898        for (i = 0; i < AP_MAX_NUM_STA; i++)
1899                aggr_reset_state(ar->sta_list[i].aggr_conn);
1900
1901        spin_lock_bh(&ar->list_lock);
1902        list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1903                list_del(&vif->list);
1904                spin_unlock_bh(&ar->list_lock);
1905                ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag));
1906                rtnl_lock();
1907                ath6kl_cfg80211_vif_cleanup(vif);
1908                rtnl_unlock();
1909                spin_lock_bh(&ar->list_lock);
1910        }
1911        spin_unlock_bh(&ar->list_lock);
1912
1913        clear_bit(WMI_READY, &ar->flag);
1914
1915        if (ar->fw_recovery.enable)
1916                del_timer_sync(&ar->fw_recovery.hb_timer);
1917
1918        /*
1919         * After wmi_shudown all WMI events will be dropped. We
1920         * need to cleanup the buffers allocated in AP mode and
1921         * give disconnect notification to stack, which usually
1922         * happens in the disconnect_event. Simulate the disconnect
1923         * event by calling the function directly. Sometimes
1924         * disconnect_event will be received when the debug logs
1925         * are collected.
1926         */
1927        ath6kl_wmi_shutdown(ar->wmi);
1928
1929        clear_bit(WMI_ENABLED, &ar->flag);
1930        if (ar->htc_target) {
1931                ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1932                ath6kl_htc_stop(ar->htc_target);
1933        }
1934
1935        /*
1936         * Try to reset the device if we can. The driver may have been
1937         * configure NOT to reset the target during a debug session.
1938         */
1939        ath6kl_init_hw_reset(ar);
1940
1941        up(&ar->sem);
1942}
1943EXPORT_SYMBOL(ath6kl_stop_txrx);
1944