drivers/net/wireless/ath/ath6kl/init.c

   1
   2 /*
   3  * Copyright (c) 2011 Atheros Communications 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/moduleparam.h>
  19 #include <linux/errno.h>
  20 #include <linux/of.h>
  21 #include <linux/mmc/sdio_func.h>
  22 #include "core.h"
  23 #include "cfg80211.h"
  24 #include "target.h"
  25 #include "debug.h"
  26 #include "hif-ops.h"
  27
  28 unsigned int debug_mask;
  29 static unsigned int testmode;
  30 static bool suspend_cutpower;
  31
  32 module_param(debug_mask, uint, 0644);
  33 module_param(testmode, uint, 0644);
  34 module_param(suspend_cutpower, bool, 0444);
  35
  36 static const struct ath6kl_hw hw_list[] = {
  37         {
  38                 .id                             = AR6003_HW_2_0_VERSION,
  39                 .name                           = "ar6003 hw 2.0",
  40                 .dataset_patch_addr             = 0x57e884,
  41                 .app_load_addr                  = 0x543180,
  42                 .board_ext_data_addr            = 0x57e500,
  43                 .reserved_ram_size              = 6912,
  44                 .refclk_hz                      = 26000000,
  45                 .uarttx_pin                     = 8,
  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
  71                 .fw = {
  72                         .dir            = AR6003_HW_2_1_1_FW_DIR,
  73                         .otp            = AR6003_HW_2_1_1_OTP_FILE,
  74                         .fw             = AR6003_HW_2_1_1_FIRMWARE_FILE,
  75                         .tcmd           = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
  76                         .patch          = AR6003_HW_2_1_1_PATCH_FILE,
  77                 },
  78
  79                 .fw_board               = AR6003_HW_2_1_1_BOARD_DATA_FILE,
  80                 .fw_default_board       = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
  81         },
  82         {
  83                 .id                             = AR6004_HW_1_0_VERSION,
  84                 .name                           = "ar6004 hw 1.0",
  85                 .dataset_patch_addr             = 0x57e884,
  86                 .app_load_addr                  = 0x1234,
  87                 .board_ext_data_addr            = 0x437000,
  88                 .reserved_ram_size              = 19456,
  89                 .board_addr                     = 0x433900,
  90                 .refclk_hz                      = 26000000,
  91                 .uarttx_pin                     = 11,
  92
  93                 .fw = {
  94                         .dir            = AR6004_HW_1_0_FW_DIR,
  95                         .fw             = AR6004_HW_1_0_FIRMWARE_FILE,
  96                 },
  97
  98                 .fw_board               = AR6004_HW_1_0_BOARD_DATA_FILE,
  99                 .fw_default_board       = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
 100         },
 101         {
 102                 .id                             = AR6004_HW_1_1_VERSION,
 103                 .name                           = "ar6004 hw 1.1",
 104                 .dataset_patch_addr             = 0x57e884,
 105                 .app_load_addr                  = 0x1234,
 106                 .board_ext_data_addr            = 0x437000,
 107                 .reserved_ram_size              = 11264,
 108                 .board_addr                     = 0x43d400,
 109                 .refclk_hz                      = 40000000,
 110                 .uarttx_pin                     = 11,
 111
 112                 .fw = {
 113                         .dir            = AR6004_HW_1_1_FW_DIR,
 114                         .fw             = AR6004_HW_1_1_FIRMWARE_FILE,
 115                 },
 116
 117                 .fw_board               = AR6004_HW_1_1_BOARD_DATA_FILE,
 118                 .fw_default_board       = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
 119         },
 120 };
 121
 122 /*
 123  * Include definitions here that can be used to tune the WLAN module
 124  * behavior. Different customers can tune the behavior as per their needs,
 125  * here.
 126  */
 127
 128 /*
 129  * This configuration item enable/disable keepalive support.
 130  * Keepalive support: In the absence of any data traffic to AP, null
 131  * frames will be sent to the AP at periodic interval, to keep the association
 132  * active. This configuration item defines the periodic interval.
 133  * Use value of zero to disable keepalive support
 134  * Default: 60 seconds
 135  */
 136 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
 137
 138 /*
 139  * This configuration item sets the value of disconnect timeout
 140  * Firmware delays sending the disconnec event to the host for this
 141  * timeout after is gets disconnected from the current AP.
 142  * If the firmware successly roams within the disconnect timeout
 143  * it sends a new connect event
 144  */
 145 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
 146
 147
 148 #define ATH6KL_DATA_OFFSET    64
 149 struct sk_buff *ath6kl_buf_alloc(int size)
 150 {
 151         struct sk_buff *skb;
 152         u16 reserved;
 153
 154         /* Add chacheline space at front and back of buffer */
 155         reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
 156                    sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
 157         skb = dev_alloc_skb(size + reserved);
 158
 159         if (skb)
 160                 skb_reserve(skb, reserved - L1_CACHE_BYTES);
 161         return skb;
 162 }
 163
 164 void ath6kl_init_profile_info(struct ath6kl_vif *vif)
 165 {
 166         vif->ssid_len = 0;
 167         memset(vif->ssid, 0, sizeof(vif->ssid));
 168
 169         vif->dot11_auth_mode = OPEN_AUTH;
 170         vif->auth_mode = NONE_AUTH;
 171         vif->prwise_crypto = NONE_CRYPT;
 172         vif->prwise_crypto_len = 0;
 173         vif->grp_crypto = NONE_CRYPT;
 174         vif->grp_crypto_len = 0;
 175         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 176         memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
 177         memset(vif->bssid, 0, sizeof(vif->bssid));
 178         vif->bss_ch = 0;
 179 }
 180
 181 static int ath6kl_set_host_app_area(struct ath6kl *ar)
 182 {
 183         u32 address, data;
 184         struct host_app_area host_app_area;
 185
 186         /* Fetch the address of the host_app_area_s
 187          * instance in the host interest area */
 188         address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
 189         address = TARG_VTOP(ar->target_type, address);
 190
 191         if (ath6kl_diag_read32(ar, address, &data))
 192                 return -EIO;
 193
 194         address = TARG_VTOP(ar->target_type, data);
 195         host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
 196         if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
 197                               sizeof(struct host_app_area)))
 198                 return -EIO;
 199
 200         return 0;
 201 }
 202
 203 static inline void set_ac2_ep_map(struct ath6kl *ar,
 204                                   u8 ac,
 205                                   enum htc_endpoint_id ep)
 206 {
 207         ar->ac2ep_map[ac] = ep;
 208         ar->ep2ac_map[ep] = ac;
 209 }
 210
 211 /* connect to a service */
 212 static int ath6kl_connectservice(struct ath6kl *ar,
 213                                  struct htc_service_connect_req  *con_req,
 214                                  char *desc)
 215 {
 216         int status;
 217         struct htc_service_connect_resp response;
 218
 219         memset(&response, 0, sizeof(response));
 220
 221         status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
 222         if (status) {
 223                 ath6kl_err("failed to connect to %s service status:%d\n",
 224                            desc, status);
 225                 return status;
 226         }
 227
 228         switch (con_req->svc_id) {
 229         case WMI_CONTROL_SVC:
 230                 if (test_bit(WMI_ENABLED, &ar->flag))
 231                         ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
 232                 ar->ctrl_ep = response.endpoint;
 233                 break;
 234         case WMI_DATA_BE_SVC:
 235                 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
 236                 break;
 237         case WMI_DATA_BK_SVC:
 238                 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
 239                 break;
 240         case WMI_DATA_VI_SVC:
 241                 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
 242                 break;
 243         case WMI_DATA_VO_SVC:
 244                 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
 245                 break;
 246         default:
 247                 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
 248                 return -EINVAL;
 249         }
 250
 251         return 0;
 252 }
 253
 254 static int ath6kl_init_service_ep(struct ath6kl *ar)
 255 {
 256         struct htc_service_connect_req connect;
 257
 258         memset(&connect, 0, sizeof(connect));
 259
 260         /* these fields are the same for all service endpoints */
 261         connect.ep_cb.rx = ath6kl_rx;
 262         connect.ep_cb.rx_refill = ath6kl_rx_refill;
 263         connect.ep_cb.tx_full = ath6kl_tx_queue_full;
 264
 265         /*
 266          * Set the max queue depth so that our ath6kl_tx_queue_full handler
 267          * gets called.
 268         */
 269         connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
 270         connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
 271         if (!connect.ep_cb.rx_refill_thresh)
 272                 connect.ep_cb.rx_refill_thresh++;
 273
 274         /* connect to control service */
 275         connect.svc_id = WMI_CONTROL_SVC;
 276         if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
 277                 return -EIO;
 278
 279         connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
 280
 281         /*
 282          * Limit the HTC message size on the send path, although e can
 283          * receive A-MSDU frames of 4K, we will only send ethernet-sized
 284          * (802.3) frames on the send path.
 285          */
 286         connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
 287
 288         /*
 289          * To reduce the amount of committed memory for larger A_MSDU
 290          * frames, use the recv-alloc threshold mechanism for larger
 291          * packets.
 292          */
 293         connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
 294         connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
 295
 296         /*
 297          * For the remaining data services set the connection flag to
 298          * reduce dribbling, if configured to do so.
 299          */
 300         connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
 301         connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
 302         connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
 303
 304         connect.svc_id = WMI_DATA_BE_SVC;
 305
 306         if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
 307                 return -EIO;
 308
 309         /* connect to back-ground map this to WMI LOW_PRI */
 310         connect.svc_id = WMI_DATA_BK_SVC;
 311         if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
 312                 return -EIO;
 313
 314         /* connect to Video service, map this to to HI PRI */
 315         connect.svc_id = WMI_DATA_VI_SVC;
 316         if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
 317                 return -EIO;
 318
 319         /*
 320          * Connect to VO service, this is currently not mapped to a WMI
 321          * priority stream due to historical reasons. WMI originally
 322          * defined 3 priorities over 3 mailboxes We can change this when
 323          * WMI is reworked so that priorities are not dependent on
 324          * mailboxes.
 325          */
 326         connect.svc_id = WMI_DATA_VO_SVC;
 327         if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
 328                 return -EIO;
 329
 330         return 0;
 331 }
 332
 333 void ath6kl_init_control_info(struct ath6kl_vif *vif)
 334 {
 335         ath6kl_init_profile_info(vif);
 336         vif->def_txkey_index = 0;
 337         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 338         vif->ch_hint = 0;
 339 }
 340
 341 /*
 342  * Set HTC/Mbox operational parameters, this can only be called when the
 343  * target is in the BMI phase.
 344  */
 345 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
 346                                  u8 htc_ctrl_buf)
 347 {
 348         int status;
 349         u32 blk_size;
 350
 351         blk_size = ar->mbox_info.block_size;
 352
 353         if (htc_ctrl_buf)
 354                 blk_size |=  ((u32)htc_ctrl_buf) << 16;
 355
 356         /* set the host interest area for the block size */
 357         status = ath6kl_bmi_write(ar,
 358                         ath6kl_get_hi_item_addr(ar,
 359                         HI_ITEM(hi_mbox_io_block_sz)),
 360                         (u8 *)&blk_size,
 361                         4);
 362         if (status) {
 363                 ath6kl_err("bmi_write_memory for IO block size failed\n");
 364                 goto out;
 365         }
 366
 367         ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
 368                    blk_size,
 369                    ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
 370
 371         if (mbox_isr_yield_val) {
 372                 /* set the host interest area for the mbox ISR yield limit */
 373                 status = ath6kl_bmi_write(ar,
 374                                 ath6kl_get_hi_item_addr(ar,
 375                                 HI_ITEM(hi_mbox_isr_yield_limit)),
 376                                 (u8 *)&mbox_isr_yield_val,
 377                                 4);
 378                 if (status) {
 379                         ath6kl_err("bmi_write_memory for yield limit failed\n");
 380                         goto out;
 381                 }
 382         }
 383
 384 out:
 385         return status;
 386 }
 387
 388 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
 389 {
 390         int status = 0;
 391         int ret;
 392
 393         /*
 394          * Configure the device for rx dot11 header rules. "0,0" are the
 395          * default values. Required if checksum offload is needed. Set
 396          * RxMetaVersion to 2.
 397          */
 398         if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
 399                                                ar->rx_meta_ver, 0, 0)) {
 400                 ath6kl_err("unable to set the rx frame format\n");
 401                 status = -EIO;
 402         }
 403
 404         if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
 405                 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
 406                      IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
 407                         ath6kl_err("unable to set power save fail event policy\n");
 408                         status = -EIO;
 409                 }
 410
 411         if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
 412                 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
 413                      WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
 414                         ath6kl_err("unable to set barker preamble policy\n");
 415                         status = -EIO;
 416                 }
 417
 418         if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
 419                         WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
 420                 ath6kl_err("unable to set keep alive interval\n");
 421                 status = -EIO;
 422         }
 423
 424         if (ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
 425                         WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
 426                 ath6kl_err("unable to set disconnect timeout\n");
 427                 status = -EIO;
 428         }
 429
 430         if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
 431                 if (ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED)) {
 432                         ath6kl_err("unable to set txop bursting\n");
 433                         status = -EIO;
 434                 }
 435
 436         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 437                 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
 438                                               P2P_FLAG_CAPABILITIES_REQ |
 439                                               P2P_FLAG_MACADDR_REQ |
 440                                               P2P_FLAG_HMODEL_REQ);
 441                 if (ret) {
 442                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
 443                                    "capabilities (%d) - assuming P2P not "
 444                                    "supported\n", ret);
 445                         ar->p2p = 0;
 446                 }
 447         }
 448
 449         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 450                 /* Enable Probe Request reporting for P2P */
 451                 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
 452                 if (ret) {
 453                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
 454                                    "Request reporting (%d)\n", ret);
 455                 }
 456         }
 457
 458         return status;
 459 }
 460
 461 int ath6kl_configure_target(struct ath6kl *ar)
 462 {
 463         u32 param, ram_reserved_size;
 464         u8 fw_iftype, fw_mode = 0, fw_submode = 0;
 465         int i, status;
 466
 467         /*
 468          * Note: Even though the firmware interface type is
 469          * chosen as BSS_STA for all three interfaces, can
 470          * be configured to IBSS/AP as long as the fw submode
 471          * remains normal mode (0 - AP, STA and IBSS). But
 472          * due to an target assert in firmware only one interface is
 473          * configured for now.
 474          */
 475         fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
 476
 477         for (i = 0; i < ar->vif_max; i++)
 478                 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
 479
 480         /*
 481          * By default, submodes :
 482          *              vif[0] - AP/STA/IBSS
 483          *              vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
 484          *              vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
 485          */
 486
 487         for (i = 0; i < ar->max_norm_iface; i++)
 488                 fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
 489                               (i * HI_OPTION_FW_SUBMODE_BITS);
 490
 491         for (i = ar->max_norm_iface; i < ar->vif_max; i++)
 492                 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 493                               (i * HI_OPTION_FW_SUBMODE_BITS);
 494
 495         if (ar->p2p && ar->vif_max == 1)
 496                 fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
 497
 498         param = HTC_PROTOCOL_VERSION;
 499         if (ath6kl_bmi_write(ar,
 500                              ath6kl_get_hi_item_addr(ar,
 501                              HI_ITEM(hi_app_host_interest)),
 502                              (u8 *)&param, 4) != 0) {
 503                 ath6kl_err("bmi_write_memory for htc version failed\n");
 504                 return -EIO;
 505         }
 506
 507         /* set the firmware mode to STA/IBSS/AP */
 508         param = 0;
 509
 510         if (ath6kl_bmi_read(ar,
 511                             ath6kl_get_hi_item_addr(ar,
 512                             HI_ITEM(hi_option_flag)),
 513                             (u8 *)&param, 4) != 0) {
 514                 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
 515                 return -EIO;
 516         }
 517
 518         param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
 519         param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
 520         param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
 521
 522         param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
 523         param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
 524
 525         if (ath6kl_bmi_write(ar,
 526                              ath6kl_get_hi_item_addr(ar,
 527                              HI_ITEM(hi_option_flag)),
 528                              (u8 *)&param,
 529                              4) != 0) {
 530                 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
 531                 return -EIO;
 532         }
 533
 534         ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
 535
 536         /*
 537          * Hardcode the address use for the extended board data
 538          * Ideally this should be pre-allocate by the OS at boot time
 539          * But since it is a new feature and board data is loaded
 540          * at init time, we have to workaround this from host.
 541          * It is difficult to patch the firmware boot code,
 542          * but possible in theory.
 543          */
 544
 545         param = ar->hw.board_ext_data_addr;
 546         ram_reserved_size = ar->hw.reserved_ram_size;
 547
 548         if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
 549                                         HI_ITEM(hi_board_ext_data)),
 550                              (u8 *)&param, 4) != 0) {
 551                 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
 552                 return -EIO;
 553         }
 554
 555         if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
 556                                         HI_ITEM(hi_end_ram_reserve_sz)),
 557                              (u8 *)&ram_reserved_size, 4) != 0) {
 558                 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
 559                 return -EIO;
 560         }
 561
 562         /* set the block size for the target */
 563         if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
 564                 /* use default number of control buffers */
 565                 return -EIO;
 566
 567         /* Configure GPIO AR600x UART */
 568         param = ar->hw.uarttx_pin;
 569         status = ath6kl_bmi_write(ar,
 570                                 ath6kl_get_hi_item_addr(ar,
 571                                 HI_ITEM(hi_dbg_uart_txpin)),
 572                                 (u8 *)&param, 4);
 573         if (status)
 574                 return status;
 575
 576         /* Configure target refclk_hz */
 577         param =  ar->hw.refclk_hz;
 578         status = ath6kl_bmi_write(ar,
 579                                 ath6kl_get_hi_item_addr(ar,
 580                                 HI_ITEM(hi_refclk_hz)),
 581                                 (u8 *)&param, 4);
 582         if (status)
 583                 return status;
 584
 585         return 0;
 586 }
 587
 588 void ath6kl_core_free(struct ath6kl *ar)
 589 {
 590         wiphy_free(ar->wiphy);
 591 }
 592
 593 void ath6kl_core_cleanup(struct ath6kl *ar)
 594 {
 595         ath6kl_hif_power_off(ar);
 596
 597         destroy_workqueue(ar->ath6kl_wq);
 598
 599         if (ar->htc_target)
 600                 ath6kl_htc_cleanup(ar->htc_target);
 601
 602         ath6kl_cookie_cleanup(ar);
 603
 604         ath6kl_cleanup_amsdu_rxbufs(ar);
 605
 606         ath6kl_bmi_cleanup(ar);
 607
 608         ath6kl_debug_cleanup(ar);
 609
 610         kfree(ar->fw_board);
 611         kfree(ar->fw_otp);
 612         kfree(ar->fw);
 613         kfree(ar->fw_patch);
 614
 615         ath6kl_deinit_ieee80211_hw(ar);
 616 }
 617
 618 /* firmware upload */
 619 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
 620                          u8 **fw, size_t *fw_len)
 621 {
 622         const struct firmware *fw_entry;
 623         int ret;
 624
 625         ret = request_firmware(&fw_entry, filename, ar->dev);
 626         if (ret)
 627                 return ret;
 628
 629         *fw_len = fw_entry->size;
 630         *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
 631
 632         if (*fw == NULL)
 633                 ret = -ENOMEM;
 634
 635         release_firmware(fw_entry);
 636
 637         return ret;
 638 }
 639
 640 #ifdef CONFIG_OF
 641 /*
 642  * Check the device tree for a board-id and use it to construct
 643  * the pathname to the firmware file.  Used (for now) to find a
 644  * fallback to the "bdata.bin" file--typically a symlink to the
 645  * appropriate board-specific file.
 646  */
 647 static bool check_device_tree(struct ath6kl *ar)
 648 {
 649         static const char *board_id_prop = "atheros,board-id";
 650         struct device_node *node;
 651         char board_filename[64];
 652         const char *board_id;
 653         int ret;
 654
 655         for_each_compatible_node(node, NULL, "atheros,ath6kl") {
 656                 board_id = of_get_property(node, board_id_prop, NULL);
 657                 if (board_id == NULL) {
 658                         ath6kl_warn("No \"%s\" property on %s node.\n",
 659                                     board_id_prop, node->name);
 660                         continue;
 661                 }
 662                 snprintf(board_filename, sizeof(board_filename),
 663                          "%s/bdata.%s.bin", ar->hw.fw.dir, board_id);
 664
 665                 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
 666                                     &ar->fw_board_len);
 667                 if (ret) {
 668                         ath6kl_err("Failed to get DT board file %s: %d\n",
 669                                    board_filename, ret);
 670                         continue;
 671                 }
 672                 return true;
 673         }
 674         return false;
 675 }
 676 #else
 677 static bool check_device_tree(struct ath6kl *ar)
 678 {
 679         return false;
 680 }
 681 #endif /* CONFIG_OF */
 682
 683 static int ath6kl_fetch_board_file(struct ath6kl *ar)
 684 {
 685         const char *filename;
 686         int ret;
 687
 688         if (ar->fw_board != NULL)
 689                 return 0;
 690
 691         if (WARN_ON(ar->hw.fw_board == NULL))
 692                 return -EINVAL;
 693
 694         filename = ar->hw.fw_board;
 695
 696         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 697                             &ar->fw_board_len);
 698         if (ret == 0) {
 699                 /* managed to get proper board file */
 700                 return 0;
 701         }
 702
 703         if (check_device_tree(ar)) {
 704                 /* got board file from device tree */
 705                 return 0;
 706         }
 707
 708         /* there was no proper board file, try to use default instead */
 709         ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
 710                     filename, ret);
 711
 712         filename = ar->hw.fw_default_board;
 713
 714         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 715                             &ar->fw_board_len);
 716         if (ret) {
 717                 ath6kl_err("Failed to get default board file %s: %d\n",
 718                            filename, ret);
 719                 return ret;
 720         }
 721
 722         ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
 723         ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
 724
 725         return 0;
 726 }
 727
 728 static int ath6kl_fetch_otp_file(struct ath6kl *ar)
 729 {
 730         char filename[100];
 731         int ret;
 732
 733         if (ar->fw_otp != NULL)
 734                 return 0;
 735
 736         if (ar->hw.fw.otp == NULL) {
 737                 ath6kl_dbg(ATH6KL_DBG_BOOT,
 738                            "no OTP file configured for this hw\n");
 739                 return 0;
 740         }
 741
 742         snprintf(filename, sizeof(filename), "%s/%s",
 743                  ar->hw.fw.dir, ar->hw.fw.otp);
 744
 745         ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
 746                             &ar->fw_otp_len);
 747         if (ret) {
 748                 ath6kl_err("Failed to get OTP file %s: %d\n",
 749                            filename, ret);
 750                 return ret;
 751         }
 752
 753         return 0;
 754 }
 755
 756 static int ath6kl_fetch_fw_file(struct ath6kl *ar)
 757 {
 758         char filename[100];
 759         int ret;
 760
 761         if (ar->fw != NULL)
 762                 return 0;
 763
 764         if (testmode) {
 765                 if (ar->hw.fw.tcmd == NULL) {
 766                         ath6kl_warn("testmode not supported\n");
 767                         return -EOPNOTSUPP;
 768                 }
 769
 770                 snprintf(filename, sizeof(filename), "%s/%s",
 771                          ar->hw.fw.dir, ar->hw.fw.tcmd);
 772
 773                 set_bit(TESTMODE, &ar->flag);
 774
 775                 goto get_fw;
 776         }
 777
 778         /* FIXME: remove WARN_ON() as we won't support FW API 1 for long */
 779         if (WARN_ON(ar->hw.fw.fw == NULL))
 780                 return -EINVAL;
 781
 782         snprintf(filename, sizeof(filename), "%s/%s",
 783                  ar->hw.fw.dir, ar->hw.fw.fw);
 784
 785 get_fw:
 786         ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 787         if (ret) {
 788                 ath6kl_err("Failed to get firmware file %s: %d\n",
 789                            filename, ret);
 790                 return ret;
 791         }
 792
 793         return 0;
 794 }
 795
 796 static int ath6kl_fetch_patch_file(struct ath6kl *ar)
 797 {
 798         char filename[100];
 799         int ret;
 800
 801         if (ar->fw_patch != NULL)
 802                 return 0;
 803
 804         if (ar->hw.fw.patch == NULL)
 805                 return 0;
 806
 807         snprintf(filename, sizeof(filename), "%s/%s",
 808                  ar->hw.fw.dir, ar->hw.fw.patch);
 809
 810         ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
 811                             &ar->fw_patch_len);
 812         if (ret) {
 813                 ath6kl_err("Failed to get patch file %s: %d\n",
 814                            filename, ret);
 815                 return ret;
 816         }
 817
 818         return 0;
 819 }
 820
 821 static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
 822 {
 823         int ret;
 824
 825         ret = ath6kl_fetch_otp_file(ar);
 826         if (ret)
 827                 return ret;
 828
 829         ret = ath6kl_fetch_fw_file(ar);
 830         if (ret)
 831                 return ret;
 832
 833         ret = ath6kl_fetch_patch_file(ar);
 834         if (ret)
 835                 return ret;
 836
 837         return 0;
 838 }
 839
 840 static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name)
 841 {
 842         size_t magic_len, len, ie_len;
 843         const struct firmware *fw;
 844         struct ath6kl_fw_ie *hdr;
 845         char filename[100];
 846         const u8 *data;
 847         int ret, ie_id, i, index, bit;
 848         __le32 *val;
 849
 850         snprintf(filename, sizeof(filename), "%s/%s", ar->hw.fw.dir, name);
 851
 852         ret = request_firmware(&fw, filename, ar->dev);
 853         if (ret)
 854                 return ret;
 855
 856         data = fw->data;
 857         len = fw->size;
 858
 859         /* magic also includes the null byte, check that as well */
 860         magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
 861
 862         if (len < magic_len) {
 863                 ret = -EINVAL;
 864                 goto out;
 865         }
 866
 867         if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
 868                 ret = -EINVAL;
 869                 goto out;
 870         }
 871
 872         len -= magic_len;
 873         data += magic_len;
 874
 875         /* loop elements */
 876         while (len > sizeof(struct ath6kl_fw_ie)) {
 877                 /* hdr is unaligned! */
 878                 hdr = (struct ath6kl_fw_ie *) data;
 879
 880                 ie_id = le32_to_cpup(&hdr->id);
 881                 ie_len = le32_to_cpup(&hdr->len);
 882
 883                 len -= sizeof(*hdr);
 884                 data += sizeof(*hdr);
 885
 886                 if (len < ie_len) {
 887                         ret = -EINVAL;
 888                         goto out;
 889                 }
 890
 891                 switch (ie_id) {
 892                 case ATH6KL_FW_IE_OTP_IMAGE:
 893                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
 894                                 ie_len);
 895
 896                         ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
 897
 898                         if (ar->fw_otp == NULL) {
 899                                 ret = -ENOMEM;
 900                                 goto out;
 901                         }
 902
 903                         ar->fw_otp_len = ie_len;
 904                         break;
 905                 case ATH6KL_FW_IE_FW_IMAGE:
 906                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
 907                                 ie_len);
 908
 909                         ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
 910
 911                         if (ar->fw == NULL) {
 912                                 ret = -ENOMEM;
 913                                 goto out;
 914                         }
 915
 916                         ar->fw_len = ie_len;
 917                         break;
 918                 case ATH6KL_FW_IE_PATCH_IMAGE:
 919                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
 920                                 ie_len);
 921
 922                         ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
 923
 924                         if (ar->fw_patch == NULL) {
 925                                 ret = -ENOMEM;
 926                                 goto out;
 927                         }
 928
 929                         ar->fw_patch_len = ie_len;
 930                         break;
 931                 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
 932                         val = (__le32 *) data;
 933                         ar->hw.reserved_ram_size = le32_to_cpup(val);
 934
 935                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 936                                    "found reserved ram size ie 0x%d\n",
 937                                    ar->hw.reserved_ram_size);
 938                         break;
 939                 case ATH6KL_FW_IE_CAPABILITIES:
 940                         if (ie_len < DIV_ROUND_UP(ATH6KL_FW_CAPABILITY_MAX, 8))
 941                                 break;
 942
 943                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 944                                    "found firmware capabilities ie (%zd B)\n",
 945                                    ie_len);
 946
 947                         for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
 948                                 index = i / 8;
 949                                 bit = i % 8;
 950
 951                                 if (data[index] & (1 << bit))
 952                                         __set_bit(i, ar->fw_capabilities);
 953                         }
 954
 955                         ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
 956                                         ar->fw_capabilities,
 957                                         sizeof(ar->fw_capabilities));
 958                         break;
 959                 case ATH6KL_FW_IE_PATCH_ADDR:
 960                         if (ie_len != sizeof(*val))
 961                                 break;
 962
 963                         val = (__le32 *) data;
 964                         ar->hw.dataset_patch_addr = le32_to_cpup(val);
 965
 966                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 967                                    "found patch address ie 0x%x\n",
 968                                    ar->hw.dataset_patch_addr);
 969                         break;
 970                 case ATH6KL_FW_IE_BOARD_ADDR:
 971                         if (ie_len != sizeof(*val))
 972                                 break;
 973
 974                         val = (__le32 *) data;
 975                         ar->hw.board_addr = le32_to_cpup(val);
 976
 977                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 978                                    "found board address ie 0x%x\n",
 979                                    ar->hw.board_addr);
 980                         break;
 981                 case ATH6KL_FW_IE_VIF_MAX:
 982                         if (ie_len != sizeof(*val))
 983                                 break;
 984
 985                         val = (__le32 *) data;
 986                         ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
 987                                             ATH6KL_VIF_MAX);
 988
 989                         if (ar->vif_max > 1 && !ar->p2p)
 990                                 ar->max_norm_iface = 2;
 991
 992                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 993                                    "found vif max ie %d\n", ar->vif_max);
 994                         break;
 995                 default:
 996                         ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
 997                                    le32_to_cpup(&hdr->id));
 998                         break;
 999                 }
1000
1001                 len -= ie_len;
1002                 data += ie_len;
1003         };
1004
1005         ret = 0;
1006 out:
1007         release_firmware(fw);
1008
1009         return ret;
1010 }
1011
1012 static int ath6kl_fetch_firmwares(struct ath6kl *ar)
1013 {
1014         int ret;
1015
1016         ret = ath6kl_fetch_board_file(ar);
1017         if (ret)
1018                 return ret;
1019
1020         ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API3_FILE);
1021         if (ret == 0) {
1022                 ar->fw_api = 3;
1023                 goto out;
1024         }
1025
1026         ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API2_FILE);
1027         if (ret == 0) {
1028                 ar->fw_api = 2;
1029                 goto out;
1030         }
1031
1032         ret = ath6kl_fetch_fw_api1(ar);
1033         if (ret)
1034                 return ret;
1035
1036         ar->fw_api = 1;
1037
1038 out:
1039         ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api %d\n", ar->fw_api);
1040
1041         return 0;
1042 }
1043
1044 static int ath6kl_upload_board_file(struct ath6kl *ar)
1045 {
1046         u32 board_address, board_ext_address, param;
1047         u32 board_data_size, board_ext_data_size;
1048         int ret;
1049
1050         if (WARN_ON(ar->fw_board == NULL))
1051                 return -ENOENT;
1052
1053         /*
1054          * Determine where in Target RAM to write Board Data.
1055          * For AR6004, host determine Target RAM address for
1056          * writing board data.
1057          */
1058         if (ar->hw.board_addr != 0) {
1059                 board_address = ar->hw.board_addr;
1060                 ath6kl_bmi_write(ar,
1061                                 ath6kl_get_hi_item_addr(ar,
1062                                 HI_ITEM(hi_board_data)),
1063                                 (u8 *) &board_address, 4);
1064         } else {
1065                 ath6kl_bmi_read(ar,
1066                                 ath6kl_get_hi_item_addr(ar,
1067                                 HI_ITEM(hi_board_data)),
1068                                 (u8 *) &board_address, 4);
1069         }
1070
1071         /* determine where in target ram to write extended board data */
1072         ath6kl_bmi_read(ar,
1073                         ath6kl_get_hi_item_addr(ar,
1074                         HI_ITEM(hi_board_ext_data)),
1075                         (u8 *) &board_ext_address, 4);
1076
1077         if (ar->target_type == TARGET_TYPE_AR6003 &&
1078             board_ext_address == 0) {
1079                 ath6kl_err("Failed to get board file target address.\n");
1080                 return -EINVAL;
1081         }
1082
1083         switch (ar->target_type) {
1084         case TARGET_TYPE_AR6003:
1085                 board_data_size = AR6003_BOARD_DATA_SZ;
1086                 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1087                 break;
1088         case TARGET_TYPE_AR6004:
1089                 board_data_size = AR6004_BOARD_DATA_SZ;
1090                 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1091                 break;
1092         default:
1093                 WARN_ON(1);
1094                 return -EINVAL;
1095                 break;
1096         }
1097
1098         if (board_ext_address &&
1099             ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1100
1101                 /* write extended board data */
1102                 ath6kl_dbg(ATH6KL_DBG_BOOT,
1103                            "writing extended board data to 0x%x (%d B)\n",
1104                            board_ext_address, board_ext_data_size);
1105
1106                 ret = ath6kl_bmi_write(ar, board_ext_address,
1107                                        ar->fw_board + board_data_size,
1108                                        board_ext_data_size);
1109                 if (ret) {
1110                         ath6kl_err("Failed to write extended board data: %d\n",
1111                                    ret);
1112                         return ret;
1113                 }
1114
1115                 /* record that extended board data is initialized */
1116                 param = (board_ext_data_size << 16) | 1;
1117
1118                 ath6kl_bmi_write(ar,
1119                                  ath6kl_get_hi_item_addr(ar,
1120                                  HI_ITEM(hi_board_ext_data_config)),
1121                                  (unsigned char *) &param, 4);
1122         }
1123
1124         if (ar->fw_board_len < board_data_size) {
1125                 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1126                 ret = -EINVAL;
1127                 return ret;
1128         }
1129
1130         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1131                    board_address, board_data_size);
1132
1133         ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1134                                board_data_size);
1135
1136         if (ret) {
1137                 ath6kl_err("Board file bmi write failed: %d\n", ret);
1138                 return ret;
1139         }
1140
1141         /* record the fact that Board Data IS initialized */
1142         param = 1;
1143         ath6kl_bmi_write(ar,
1144                          ath6kl_get_hi_item_addr(ar,
1145                          HI_ITEM(hi_board_data_initialized)),
1146                          (u8 *)&param, 4);
1147
1148         return ret;
1149 }
1150
1151 static int ath6kl_upload_otp(struct ath6kl *ar)
1152 {
1153         u32 address, param;
1154         bool from_hw = false;
1155         int ret;
1156
1157         if (ar->fw_otp == NULL)
1158                 return 0;
1159
1160         address = ar->hw.app_load_addr;
1161
1162         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1163                    ar->fw_otp_len);
1164
1165         ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1166                                        ar->fw_otp_len);
1167         if (ret) {
1168                 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1169                 return ret;
1170         }
1171
1172         /* read firmware start address */
1173         ret = ath6kl_bmi_read(ar,
1174                               ath6kl_get_hi_item_addr(ar,
1175                                                       HI_ITEM(hi_app_start)),
1176                               (u8 *) &address, sizeof(address));
1177
1178         if (ret) {
1179                 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1180                 return ret;
1181         }
1182
1183         if (ar->hw.app_start_override_addr == 0) {
1184                 ar->hw.app_start_override_addr = address;
1185                 from_hw = true;
1186         }
1187
1188         ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1189                    from_hw ? " (from hw)" : "",
1190                    ar->hw.app_start_override_addr);
1191
1192         /* execute the OTP code */
1193         ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1194                    ar->hw.app_start_override_addr);
1195         param = 0;
1196         ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1197
1198         return ret;
1199 }
1200
1201 static int ath6kl_upload_firmware(struct ath6kl *ar)
1202 {
1203         u32 address;
1204         int ret;
1205
1206         if (WARN_ON(ar->fw == NULL))
1207                 return 0;
1208
1209         address = ar->hw.app_load_addr;
1210
1211         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1212                    address, ar->fw_len);
1213
1214         ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1215
1216         if (ret) {
1217                 ath6kl_err("Failed to write firmware: %d\n", ret);
1218                 return ret;
1219         }
1220
1221         /*
1222          * Set starting address for firmware
1223          * Don't need to setup app_start override addr on AR6004
1224          */
1225         if (ar->target_type != TARGET_TYPE_AR6004) {
1226                 address = ar->hw.app_start_override_addr;
1227                 ath6kl_bmi_set_app_start(ar, address);
1228         }
1229         return ret;
1230 }
1231
1232 static int ath6kl_upload_patch(struct ath6kl *ar)
1233 {
1234         u32 address, param;
1235         int ret;
1236
1237         if (ar->fw_patch == NULL)
1238                 return 0;
1239
1240         address = ar->hw.dataset_patch_addr;
1241
1242         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1243                    address, ar->fw_patch_len);
1244
1245         ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1246         if (ret) {
1247                 ath6kl_err("Failed to write patch file: %d\n", ret);
1248                 return ret;
1249         }
1250
1251         param = address;
1252         ath6kl_bmi_write(ar,
1253                          ath6kl_get_hi_item_addr(ar,
1254                          HI_ITEM(hi_dset_list_head)),
1255                          (unsigned char *) &param, 4);
1256
1257         return 0;
1258 }
1259
1260 static int ath6kl_init_upload(struct ath6kl *ar)
1261 {
1262         u32 param, options, sleep, address;
1263         int status = 0;
1264
1265         if (ar->target_type != TARGET_TYPE_AR6003 &&
1266                 ar->target_type != TARGET_TYPE_AR6004)
1267                 return -EINVAL;
1268
1269         /* temporarily disable system sleep */
1270         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1271         status = ath6kl_bmi_reg_read(ar, address, &param);
1272         if (status)
1273                 return status;
1274
1275         options = param;
1276
1277         param |= ATH6KL_OPTION_SLEEP_DISABLE;
1278         status = ath6kl_bmi_reg_write(ar, address, param);
1279         if (status)
1280                 return status;
1281
1282         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1283         status = ath6kl_bmi_reg_read(ar, address, &param);
1284         if (status)
1285                 return status;
1286
1287         sleep = param;
1288
1289         param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1290         status = ath6kl_bmi_reg_write(ar, address, param);
1291         if (status)
1292                 return status;
1293
1294         ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1295                    options, sleep);
1296
1297         /* program analog PLL register */
1298         /* no need to control 40/44MHz clock on AR6004 */
1299         if (ar->target_type != TARGET_TYPE_AR6004) {
1300                 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1301                                               0xF9104001);
1302
1303                 if (status)
1304                         return status;
1305
1306                 /* Run at 80/88MHz by default */
1307                 param = SM(CPU_CLOCK_STANDARD, 1);
1308
1309                 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1310                 status = ath6kl_bmi_reg_write(ar, address, param);
1311                 if (status)
1312                         return status;
1313         }
1314
1315         param = 0;
1316         address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1317         param = SM(LPO_CAL_ENABLE, 1);
1318         status = ath6kl_bmi_reg_write(ar, address, param);
1319         if (status)
1320                 return status;
1321
1322         /* WAR to avoid SDIO CRC err */
1323         if (ar->version.target_ver == AR6003_HW_2_0_VERSION) {
1324                 ath6kl_err("temporary war to avoid sdio crc error\n");
1325
1326                 param = 0x20;
1327
1328                 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1329                 status = ath6kl_bmi_reg_write(ar, address, param);
1330                 if (status)
1331                         return status;
1332
1333                 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1334                 status = ath6kl_bmi_reg_write(ar, address, param);
1335                 if (status)
1336                         return status;
1337
1338                 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1339                 status = ath6kl_bmi_reg_write(ar, address, param);
1340                 if (status)
1341                         return status;
1342
1343                 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1344                 status = ath6kl_bmi_reg_write(ar, address, param);
1345                 if (status)
1346                         return status;
1347         }
1348
1349         /* write EEPROM data to Target RAM */
1350         status = ath6kl_upload_board_file(ar);
1351         if (status)
1352                 return status;
1353
1354         /* transfer One time Programmable data */
1355         status = ath6kl_upload_otp(ar);
1356         if (status)
1357                 return status;
1358
1359         /* Download Target firmware */
1360         status = ath6kl_upload_firmware(ar);
1361         if (status)
1362                 return status;
1363
1364         status = ath6kl_upload_patch(ar);
1365         if (status)
1366                 return status;
1367
1368         /* Restore system sleep */
1369         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1370         status = ath6kl_bmi_reg_write(ar, address, sleep);
1371         if (status)
1372                 return status;
1373
1374         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1375         param = options | 0x20;
1376         status = ath6kl_bmi_reg_write(ar, address, param);
1377         if (status)
1378                 return status;
1379
1380         return status;
1381 }
1382
1383 static int ath6kl_init_hw_params(struct ath6kl *ar)
1384 {
1385         const struct ath6kl_hw *hw;
1386         int i;
1387
1388         for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1389                 hw = &hw_list[i];
1390
1391                 if (hw->id == ar->version.target_ver)
1392                         break;
1393         }
1394
1395         if (i == ARRAY_SIZE(hw_list)) {
1396                 ath6kl_err("Unsupported hardware version: 0x%x\n",
1397                            ar->version.target_ver);
1398                 return -EINVAL;
1399         }
1400
1401         ar->hw = *hw;
1402
1403         ath6kl_dbg(ATH6KL_DBG_BOOT,
1404                    "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1405                    ar->version.target_ver, ar->target_type,
1406                    ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1407         ath6kl_dbg(ATH6KL_DBG_BOOT,
1408                    "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1409                    ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1410                    ar->hw.reserved_ram_size);
1411         ath6kl_dbg(ATH6KL_DBG_BOOT,
1412                    "refclk_hz %d uarttx_pin %d",
1413                    ar->hw.refclk_hz, ar->hw.uarttx_pin);
1414
1415         return 0;
1416 }
1417
1418 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1419 {
1420         switch (type) {
1421         case ATH6KL_HIF_TYPE_SDIO:
1422                 return "sdio";
1423         case ATH6KL_HIF_TYPE_USB:
1424                 return "usb";
1425         }
1426
1427         return NULL;
1428 }
1429
1430 int ath6kl_init_hw_start(struct ath6kl *ar)
1431 {
1432         long timeleft;
1433         int ret, i;
1434
1435         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1436
1437         ret = ath6kl_hif_power_on(ar);
1438         if (ret)
1439                 return ret;
1440
1441         ret = ath6kl_configure_target(ar);
1442         if (ret)
1443                 goto err_power_off;
1444
1445         ret = ath6kl_init_upload(ar);
1446         if (ret)
1447                 goto err_power_off;
1448
1449         /* Do we need to finish the BMI phase */
1450         /* FIXME: return error from ath6kl_bmi_done() */
1451         if (ath6kl_bmi_done(ar)) {
1452                 ret = -EIO;
1453                 goto err_power_off;
1454         }
1455
1456         /*
1457          * The reason we have to wait for the target here is that the
1458          * driver layer has to init BMI in order to set the host block
1459          * size.
1460          */
1461         if (ath6kl_htc_wait_target(ar->htc_target)) {
1462                 ret = -EIO;
1463                 goto err_power_off;
1464         }
1465
1466         if (ath6kl_init_service_ep(ar)) {
1467                 ret = -EIO;
1468                 goto err_cleanup_scatter;
1469         }
1470
1471         /* setup credit distribution */
1472         ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
1473
1474         /* start HTC */
1475         ret = ath6kl_htc_start(ar->htc_target);
1476         if (ret) {
1477                 /* FIXME: call this */
1478                 ath6kl_cookie_cleanup(ar);
1479                 goto err_cleanup_scatter;
1480         }
1481
1482         /* Wait for Wmi event to be ready */
1483         timeleft = wait_event_interruptible_timeout(ar->event_wq,
1484                                                     test_bit(WMI_READY,
1485                                                              &ar->flag),
1486                                                     WMI_TIMEOUT);
1487
1488         ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1489
1490
1491         if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1492                 ath6kl_info("%s %s fw %s api %d%s\n",
1493                             ar->hw.name,
1494                             ath6kl_init_get_hif_name(ar->hif_type),
1495                             ar->wiphy->fw_version,
1496                             ar->fw_api,
1497                             test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1498         }
1499
1500         if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1501                 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1502                            ATH6KL_ABI_VERSION, ar->version.abi_ver);
1503                 ret = -EIO;
1504                 goto err_htc_stop;
1505         }
1506
1507         if (!timeleft || signal_pending(current)) {
1508                 ath6kl_err("wmi is not ready or wait was interrupted\n");
1509                 ret = -EIO;
1510                 goto err_htc_stop;
1511         }
1512
1513         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1514
1515         /* communicate the wmi protocol verision to the target */
1516         /* FIXME: return error */
1517         if ((ath6kl_set_host_app_area(ar)) != 0)
1518                 ath6kl_err("unable to set the host app area\n");
1519
1520         for (i = 0; i < ar->vif_max; i++) {
1521                 ret = ath6kl_target_config_wlan_params(ar, i);
1522                 if (ret)
1523                         goto err_htc_stop;
1524         }
1525
1526         ar->state = ATH6KL_STATE_ON;
1527
1528         return 0;
1529
1530 err_htc_stop:
1531         ath6kl_htc_stop(ar->htc_target);
1532 err_cleanup_scatter:
1533         ath6kl_hif_cleanup_scatter(ar);
1534 err_power_off:
1535         ath6kl_hif_power_off(ar);
1536
1537         return ret;
1538 }
1539
1540 int ath6kl_init_hw_stop(struct ath6kl *ar)
1541 {
1542         int ret;
1543
1544         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1545
1546         ath6kl_htc_stop(ar->htc_target);
1547
1548         ath6kl_hif_stop(ar);
1549
1550         ath6kl_bmi_reset(ar);
1551
1552         ret = ath6kl_hif_power_off(ar);
1553         if (ret)
1554                 ath6kl_warn("failed to power off hif: %d\n", ret);
1555
1556         ar->state = ATH6KL_STATE_OFF;
1557
1558         return 0;
1559 }
1560
1561 int ath6kl_core_init(struct ath6kl *ar)
1562 {
1563         struct ath6kl_bmi_target_info targ_info;
1564         struct net_device *ndev;
1565         int ret = 0, i;
1566
1567         ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1568         if (!ar->ath6kl_wq)
1569                 return -ENOMEM;
1570
1571         ret = ath6kl_bmi_init(ar);
1572         if (ret)
1573                 goto err_wq;
1574
1575         /*
1576          * Turn on power to get hardware (target) version and leave power
1577          * on delibrately as we will boot the hardware anyway within few
1578          * seconds.
1579          */
1580         ret = ath6kl_hif_power_on(ar);
1581         if (ret)
1582                 goto err_bmi_cleanup;
1583
1584         ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1585         if (ret)
1586                 goto err_power_off;
1587
1588         ar->version.target_ver = le32_to_cpu(targ_info.version);
1589         ar->target_type = le32_to_cpu(targ_info.type);
1590         ar->wiphy->hw_version = le32_to_cpu(targ_info.version);
1591
1592         ret = ath6kl_init_hw_params(ar);
1593         if (ret)
1594                 goto err_power_off;
1595
1596         ar->htc_target = ath6kl_htc_create(ar);
1597
1598         if (!ar->htc_target) {
1599                 ret = -ENOMEM;
1600                 goto err_power_off;
1601         }
1602
1603         ret = ath6kl_fetch_firmwares(ar);
1604         if (ret)
1605                 goto err_htc_cleanup;
1606
1607         /* FIXME: we should free all firmwares in the error cases below */
1608
1609         /* Indicate that WMI is enabled (although not ready yet) */
1610         set_bit(WMI_ENABLED, &ar->flag);
1611         ar->wmi = ath6kl_wmi_init(ar);
1612         if (!ar->wmi) {
1613                 ath6kl_err("failed to initialize wmi\n");
1614                 ret = -EIO;
1615                 goto err_htc_cleanup;
1616         }
1617
1618         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1619
1620         ret = ath6kl_register_ieee80211_hw(ar);
1621         if (ret)
1622                 goto err_node_cleanup;
1623
1624         ret = ath6kl_debug_init(ar);
1625         if (ret) {
1626                 wiphy_unregister(ar->wiphy);
1627                 goto err_node_cleanup;
1628         }
1629
1630         for (i = 0; i < ar->vif_max; i++)
1631                 ar->avail_idx_map |= BIT(i);
1632
1633         rtnl_lock();
1634
1635         /* Add an initial station interface */
1636         ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0,
1637                                     INFRA_NETWORK);
1638
1639         rtnl_unlock();
1640
1641         if (!ndev) {
1642                 ath6kl_err("Failed to instantiate a network device\n");
1643                 ret = -ENOMEM;
1644                 wiphy_unregister(ar->wiphy);
1645                 goto err_debug_init;
1646         }
1647
1648
1649         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1650                         __func__, ndev->name, ndev, ar);
1651
1652         /* setup access class priority mappings */
1653         ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest  */
1654         ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1655         ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1656         ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1657
1658         /* give our connected endpoints some buffers */
1659         ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1660         ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1661
1662         /* allocate some buffers that handle larger AMSDU frames */
1663         ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1664
1665         ath6kl_cookie_init(ar);
1666
1667         ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1668                          ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1669
1670         if (suspend_cutpower)
1671                 ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER;
1672
1673         ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
1674                             WIPHY_FLAG_HAVE_AP_SME |
1675                             WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1676                             WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1677
1678         if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities))
1679                 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
1680
1681         ar->wiphy->probe_resp_offload =
1682                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1683                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1684                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P |
1685                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U;
1686
1687         set_bit(FIRST_BOOT, &ar->flag);
1688
1689         ret = ath6kl_init_hw_start(ar);
1690         if (ret) {
1691                 ath6kl_err("Failed to start hardware: %d\n", ret);
1692                 goto err_rxbuf_cleanup;
1693         }
1694
1695         /*
1696          * Set mac address which is received in ready event
1697          * FIXME: Move to ath6kl_interface_add()
1698          */
1699         memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
1700
1701         return ret;
1702
1703 err_rxbuf_cleanup:
1704         ath6kl_htc_flush_rx_buf(ar->htc_target);
1705         ath6kl_cleanup_amsdu_rxbufs(ar);
1706         rtnl_lock();
1707         ath6kl_deinit_if_data(netdev_priv(ndev));
1708         rtnl_unlock();
1709         wiphy_unregister(ar->wiphy);
1710 err_debug_init:
1711         ath6kl_debug_cleanup(ar);
1712 err_node_cleanup:
1713         ath6kl_wmi_shutdown(ar->wmi);
1714         clear_bit(WMI_ENABLED, &ar->flag);
1715         ar->wmi = NULL;
1716 err_htc_cleanup:
1717         ath6kl_htc_cleanup(ar->htc_target);
1718 err_power_off:
1719         ath6kl_hif_power_off(ar);
1720 err_bmi_cleanup:
1721         ath6kl_bmi_cleanup(ar);
1722 err_wq:
1723         destroy_workqueue(ar->ath6kl_wq);
1724
1725         return ret;
1726 }
1727
1728 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1729 {
1730         static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1731         bool discon_issued;
1732
1733         netif_stop_queue(vif->ndev);
1734
1735         clear_bit(WLAN_ENABLED, &vif->flags);
1736
1737         if (wmi_ready) {
1738                 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1739                                 test_bit(CONNECT_PEND, &vif->flags);
1740                 ath6kl_disconnect(vif);
1741                 del_timer(&vif->disconnect_timer);
1742
1743                 if (discon_issued)
1744                         ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1745                                                 (vif->nw_type & AP_NETWORK) ?
1746                                                 bcast_mac : vif->bssid,
1747                                                 0, NULL, 0);
1748         }
1749
1750         if (vif->scan_req) {
1751                 cfg80211_scan_done(vif->scan_req, true);
1752                 vif->scan_req = NULL;
1753         }
1754 }
1755
1756 void ath6kl_stop_txrx(struct ath6kl *ar)
1757 {
1758         struct ath6kl_vif *vif, *tmp_vif;
1759
1760         set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1761
1762         if (down_interruptible(&ar->sem)) {
1763                 ath6kl_err("down_interruptible failed\n");
1764                 return;
1765         }
1766
1767         spin_lock_bh(&ar->list_lock);
1768         list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1769                 list_del(&vif->list);
1770                 spin_unlock_bh(&ar->list_lock);
1771                 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1772                 rtnl_lock();
1773                 ath6kl_deinit_if_data(vif);
1774                 rtnl_unlock();
1775                 spin_lock_bh(&ar->list_lock);
1776         }
1777         spin_unlock_bh(&ar->list_lock);
1778
1779         clear_bit(WMI_READY, &ar->flag);
1780
1781         /*
1782          * After wmi_shudown all WMI events will be dropped. We
1783          * need to cleanup the buffers allocated in AP mode and
1784          * give disconnect notification to stack, which usually
1785          * happens in the disconnect_event. Simulate the disconnect
1786          * event by calling the function directly. Sometimes
1787          * disconnect_event will be received when the debug logs
1788          * are collected.
1789          */
1790         ath6kl_wmi_shutdown(ar->wmi);
1791
1792         clear_bit(WMI_ENABLED, &ar->flag);
1793         if (ar->htc_target) {
1794                 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1795                 ath6kl_htc_stop(ar->htc_target);
1796         }
1797
1798         /*
1799          * Try to reset the device if we can. The driver may have been
1800          * configure NOT to reset the target during a debug session.
1801          */
1802         ath6kl_dbg(ATH6KL_DBG_TRC,
1803                         "attempting to reset target on instance destroy\n");
1804         ath6kl_reset_device(ar, ar->target_type, true, true);
1805
1806         clear_bit(WLAN_ENABLED, &ar->flag);
1807 }