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_otp                 = AR6003_HW_2_0_OTP_FILE,
  51                 .fw                     = AR6003_HW_2_0_FIRMWARE_FILE,
  52                 .fw_tcmd                = AR6003_HW_2_0_TCMD_FIRMWARE_FILE,
  53                 .fw_patch               = AR6003_HW_2_0_PATCH_FILE,
  54                 .fw_api2                = AR6003_HW_2_0_FIRMWARE_2_FILE,
  55                 .fw_board               = AR6003_HW_2_0_BOARD_DATA_FILE,
  56                 .fw_default_board       = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE,
  57         },
  58         {
  59                 .id                             = AR6003_HW_2_1_1_VERSION,
  60                 .name                           = "ar6003 hw 2.1.1",
  61                 .dataset_patch_addr             = 0x57ff74,
  62                 .app_load_addr                  = 0x1234,
  63                 .board_ext_data_addr            = 0x542330,
  64                 .reserved_ram_size              = 512,
  65                 .refclk_hz                      = 26000000,
  66                 .uarttx_pin                     = 8,
  67
  68                 .fw_otp                 = AR6003_HW_2_1_1_OTP_FILE,
  69                 .fw                     = AR6003_HW_2_1_1_FIRMWARE_FILE,
  70                 .fw_tcmd                = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
  71                 .fw_patch               = AR6003_HW_2_1_1_PATCH_FILE,
  72                 .fw_api2                = AR6003_HW_2_1_1_FIRMWARE_2_FILE,
  73                 .fw_board               = AR6003_HW_2_1_1_BOARD_DATA_FILE,
  74                 .fw_default_board       = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
  75         },
  76         {
  77                 .id                             = AR6004_HW_1_0_VERSION,
  78                 .name                           = "ar6004 hw 1.0",
  79                 .dataset_patch_addr             = 0x57e884,
  80                 .app_load_addr                  = 0x1234,
  81                 .board_ext_data_addr            = 0x437000,
  82                 .reserved_ram_size              = 19456,
  83                 .board_addr                     = 0x433900,
  84                 .refclk_hz                      = 26000000,
  85                 .uarttx_pin                     = 11,
  86
  87                 .fw                     = AR6004_HW_1_0_FIRMWARE_FILE,
  88                 .fw_api2                = AR6004_HW_1_0_FIRMWARE_2_FILE,
  89                 .fw_board               = AR6004_HW_1_0_BOARD_DATA_FILE,
  90                 .fw_default_board       = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
  91         },
  92         {
  93                 .id                             = AR6004_HW_1_1_VERSION,
  94                 .name                           = "ar6004 hw 1.1",
  95                 .dataset_patch_addr             = 0x57e884,
  96                 .app_load_addr                  = 0x1234,
  97                 .board_ext_data_addr            = 0x437000,
  98                 .reserved_ram_size              = 11264,
  99                 .board_addr                     = 0x43d400,
 100                 .refclk_hz                      = 40000000,
 101                 .uarttx_pin                     = 11,
 102
 103                 .fw                     = AR6004_HW_1_1_FIRMWARE_FILE,
 104                 .fw_api2                = AR6004_HW_1_1_FIRMWARE_2_FILE,
 105                 .fw_board               = AR6004_HW_1_1_BOARD_DATA_FILE,
 106                 .fw_default_board       = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
 107         },
 108 };
 109
 110 /*
 111  * Include definitions here that can be used to tune the WLAN module
 112  * behavior. Different customers can tune the behavior as per their needs,
 113  * here.
 114  */
 115
 116 /*
 117  * This configuration item enable/disable keepalive support.
 118  * Keepalive support: In the absence of any data traffic to AP, null
 119  * frames will be sent to the AP at periodic interval, to keep the association
 120  * active. This configuration item defines the periodic interval.
 121  * Use value of zero to disable keepalive support
 122  * Default: 60 seconds
 123  */
 124 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
 125
 126 /*
 127  * This configuration item sets the value of disconnect timeout
 128  * Firmware delays sending the disconnec event to the host for this
 129  * timeout after is gets disconnected from the current AP.
 130  * If the firmware successly roams within the disconnect timeout
 131  * it sends a new connect event
 132  */
 133 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
 134
 135
 136 #define ATH6KL_DATA_OFFSET    64
 137 struct sk_buff *ath6kl_buf_alloc(int size)
 138 {
 139         struct sk_buff *skb;
 140         u16 reserved;
 141
 142         /* Add chacheline space at front and back of buffer */
 143         reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
 144                    sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
 145         skb = dev_alloc_skb(size + reserved);
 146
 147         if (skb)
 148                 skb_reserve(skb, reserved - L1_CACHE_BYTES);
 149         return skb;
 150 }
 151
 152 void ath6kl_init_profile_info(struct ath6kl_vif *vif)
 153 {
 154         vif->ssid_len = 0;
 155         memset(vif->ssid, 0, sizeof(vif->ssid));
 156
 157         vif->dot11_auth_mode = OPEN_AUTH;
 158         vif->auth_mode = NONE_AUTH;
 159         vif->prwise_crypto = NONE_CRYPT;
 160         vif->prwise_crypto_len = 0;
 161         vif->grp_crypto = NONE_CRYPT;
 162         vif->grp_crypto_len = 0;
 163         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 164         memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
 165         memset(vif->bssid, 0, sizeof(vif->bssid));
 166         vif->bss_ch = 0;
 167 }
 168
 169 static int ath6kl_set_host_app_area(struct ath6kl *ar)
 170 {
 171         u32 address, data;
 172         struct host_app_area host_app_area;
 173
 174         /* Fetch the address of the host_app_area_s
 175          * instance in the host interest area */
 176         address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
 177         address = TARG_VTOP(ar->target_type, address);
 178
 179         if (ath6kl_diag_read32(ar, address, &data))
 180                 return -EIO;
 181
 182         address = TARG_VTOP(ar->target_type, data);
 183         host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
 184         if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
 185                               sizeof(struct host_app_area)))
 186                 return -EIO;
 187
 188         return 0;
 189 }
 190
 191 static inline void set_ac2_ep_map(struct ath6kl *ar,
 192                                   u8 ac,
 193                                   enum htc_endpoint_id ep)
 194 {
 195         ar->ac2ep_map[ac] = ep;
 196         ar->ep2ac_map[ep] = ac;
 197 }
 198
 199 /* connect to a service */
 200 static int ath6kl_connectservice(struct ath6kl *ar,
 201                                  struct htc_service_connect_req  *con_req,
 202                                  char *desc)
 203 {
 204         int status;
 205         struct htc_service_connect_resp response;
 206
 207         memset(&response, 0, sizeof(response));
 208
 209         status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
 210         if (status) {
 211                 ath6kl_err("failed to connect to %s service status:%d\n",
 212                            desc, status);
 213                 return status;
 214         }
 215
 216         switch (con_req->svc_id) {
 217         case WMI_CONTROL_SVC:
 218                 if (test_bit(WMI_ENABLED, &ar->flag))
 219                         ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
 220                 ar->ctrl_ep = response.endpoint;
 221                 break;
 222         case WMI_DATA_BE_SVC:
 223                 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
 224                 break;
 225         case WMI_DATA_BK_SVC:
 226                 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
 227                 break;
 228         case WMI_DATA_VI_SVC:
 229                 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
 230                 break;
 231         case WMI_DATA_VO_SVC:
 232                 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
 233                 break;
 234         default:
 235                 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
 236                 return -EINVAL;
 237         }
 238
 239         return 0;
 240 }
 241
 242 static int ath6kl_init_service_ep(struct ath6kl *ar)
 243 {
 244         struct htc_service_connect_req connect;
 245
 246         memset(&connect, 0, sizeof(connect));
 247
 248         /* these fields are the same for all service endpoints */
 249         connect.ep_cb.rx = ath6kl_rx;
 250         connect.ep_cb.rx_refill = ath6kl_rx_refill;
 251         connect.ep_cb.tx_full = ath6kl_tx_queue_full;
 252
 253         /*
 254          * Set the max queue depth so that our ath6kl_tx_queue_full handler
 255          * gets called.
 256         */
 257         connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
 258         connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
 259         if (!connect.ep_cb.rx_refill_thresh)
 260                 connect.ep_cb.rx_refill_thresh++;
 261
 262         /* connect to control service */
 263         connect.svc_id = WMI_CONTROL_SVC;
 264         if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
 265                 return -EIO;
 266
 267         connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
 268
 269         /*
 270          * Limit the HTC message size on the send path, although e can
 271          * receive A-MSDU frames of 4K, we will only send ethernet-sized
 272          * (802.3) frames on the send path.
 273          */
 274         connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
 275
 276         /*
 277          * To reduce the amount of committed memory for larger A_MSDU
 278          * frames, use the recv-alloc threshold mechanism for larger
 279          * packets.
 280          */
 281         connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
 282         connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
 283
 284         /*
 285          * For the remaining data services set the connection flag to
 286          * reduce dribbling, if configured to do so.
 287          */
 288         connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
 289         connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
 290         connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
 291
 292         connect.svc_id = WMI_DATA_BE_SVC;
 293
 294         if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
 295                 return -EIO;
 296
 297         /* connect to back-ground map this to WMI LOW_PRI */
 298         connect.svc_id = WMI_DATA_BK_SVC;
 299         if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
 300                 return -EIO;
 301
 302         /* connect to Video service, map this to to HI PRI */
 303         connect.svc_id = WMI_DATA_VI_SVC;
 304         if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
 305                 return -EIO;
 306
 307         /*
 308          * Connect to VO service, this is currently not mapped to a WMI
 309          * priority stream due to historical reasons. WMI originally
 310          * defined 3 priorities over 3 mailboxes We can change this when
 311          * WMI is reworked so that priorities are not dependent on
 312          * mailboxes.
 313          */
 314         connect.svc_id = WMI_DATA_VO_SVC;
 315         if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
 316                 return -EIO;
 317
 318         return 0;
 319 }
 320
 321 void ath6kl_init_control_info(struct ath6kl_vif *vif)
 322 {
 323         ath6kl_init_profile_info(vif);
 324         vif->def_txkey_index = 0;
 325         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 326         vif->ch_hint = 0;
 327 }
 328
 329 /*
 330  * Set HTC/Mbox operational parameters, this can only be called when the
 331  * target is in the BMI phase.
 332  */
 333 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
 334                                  u8 htc_ctrl_buf)
 335 {
 336         int status;
 337         u32 blk_size;
 338
 339         blk_size = ar->mbox_info.block_size;
 340
 341         if (htc_ctrl_buf)
 342                 blk_size |=  ((u32)htc_ctrl_buf) << 16;
 343
 344         /* set the host interest area for the block size */
 345         status = ath6kl_bmi_write(ar,
 346                         ath6kl_get_hi_item_addr(ar,
 347                         HI_ITEM(hi_mbox_io_block_sz)),
 348                         (u8 *)&blk_size,
 349                         4);
 350         if (status) {
 351                 ath6kl_err("bmi_write_memory for IO block size failed\n");
 352                 goto out;
 353         }
 354
 355         ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
 356                    blk_size,
 357                    ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
 358
 359         if (mbox_isr_yield_val) {
 360                 /* set the host interest area for the mbox ISR yield limit */
 361                 status = ath6kl_bmi_write(ar,
 362                                 ath6kl_get_hi_item_addr(ar,
 363                                 HI_ITEM(hi_mbox_isr_yield_limit)),
 364                                 (u8 *)&mbox_isr_yield_val,
 365                                 4);
 366                 if (status) {
 367                         ath6kl_err("bmi_write_memory for yield limit failed\n");
 368                         goto out;
 369                 }
 370         }
 371
 372 out:
 373         return status;
 374 }
 375
 376 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
 377 {
 378         int status = 0;
 379         int ret;
 380
 381         /*
 382          * Configure the device for rx dot11 header rules. "0,0" are the
 383          * default values. Required if checksum offload is needed. Set
 384          * RxMetaVersion to 2.
 385          */
 386         if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
 387                                                ar->rx_meta_ver, 0, 0)) {
 388                 ath6kl_err("unable to set the rx frame format\n");
 389                 status = -EIO;
 390         }
 391
 392         if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
 393                 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
 394                      IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
 395                         ath6kl_err("unable to set power save fail event policy\n");
 396                         status = -EIO;
 397                 }
 398
 399         if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
 400                 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
 401                      WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
 402                         ath6kl_err("unable to set barker preamble policy\n");
 403                         status = -EIO;
 404                 }
 405
 406         if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
 407                         WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
 408                 ath6kl_err("unable to set keep alive interval\n");
 409                 status = -EIO;
 410         }
 411
 412         if (ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
 413                         WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
 414                 ath6kl_err("unable to set disconnect timeout\n");
 415                 status = -EIO;
 416         }
 417
 418         if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
 419                 if (ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED)) {
 420                         ath6kl_err("unable to set txop bursting\n");
 421                         status = -EIO;
 422                 }
 423
 424         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 425                 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
 426                                               P2P_FLAG_CAPABILITIES_REQ |
 427                                               P2P_FLAG_MACADDR_REQ |
 428                                               P2P_FLAG_HMODEL_REQ);
 429                 if (ret) {
 430                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
 431                                    "capabilities (%d) - assuming P2P not "
 432                                    "supported\n", ret);
 433                         ar->p2p = 0;
 434                 }
 435         }
 436
 437         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 438                 /* Enable Probe Request reporting for P2P */
 439                 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
 440                 if (ret) {
 441                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
 442                                    "Request reporting (%d)\n", ret);
 443                 }
 444         }
 445
 446         return status;
 447 }
 448
 449 int ath6kl_configure_target(struct ath6kl *ar)
 450 {
 451         u32 param, ram_reserved_size;
 452         u8 fw_iftype, fw_mode = 0, fw_submode = 0;
 453         int i, status;
 454
 455         /*
 456          * Note: Even though the firmware interface type is
 457          * chosen as BSS_STA for all three interfaces, can
 458          * be configured to IBSS/AP as long as the fw submode
 459          * remains normal mode (0 - AP, STA and IBSS). But
 460          * due to an target assert in firmware only one interface is
 461          * configured for now.
 462          */
 463         fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
 464
 465         for (i = 0; i < ar->vif_max; i++)
 466                 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
 467
 468         /*
 469          * By default, submodes :
 470          *              vif[0] - AP/STA/IBSS
 471          *              vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
 472          *              vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
 473          */
 474
 475         for (i = 0; i < ar->max_norm_iface; i++)
 476                 fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
 477                               (i * HI_OPTION_FW_SUBMODE_BITS);
 478
 479         for (i = ar->max_norm_iface; i < ar->vif_max; i++)
 480                 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 481                               (i * HI_OPTION_FW_SUBMODE_BITS);
 482
 483         if (ar->p2p && ar->vif_max == 1)
 484                 fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
 485
 486         param = HTC_PROTOCOL_VERSION;
 487         if (ath6kl_bmi_write(ar,
 488                              ath6kl_get_hi_item_addr(ar,
 489                              HI_ITEM(hi_app_host_interest)),
 490                              (u8 *)&param, 4) != 0) {
 491                 ath6kl_err("bmi_write_memory for htc version failed\n");
 492                 return -EIO;
 493         }
 494
 495         /* set the firmware mode to STA/IBSS/AP */
 496         param = 0;
 497
 498         if (ath6kl_bmi_read(ar,
 499                             ath6kl_get_hi_item_addr(ar,
 500                             HI_ITEM(hi_option_flag)),
 501                             (u8 *)&param, 4) != 0) {
 502                 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
 503                 return -EIO;
 504         }
 505
 506         param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
 507         param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
 508         param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
 509
 510         param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
 511         param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
 512
 513         if (ath6kl_bmi_write(ar,
 514                              ath6kl_get_hi_item_addr(ar,
 515                              HI_ITEM(hi_option_flag)),
 516                              (u8 *)&param,
 517                              4) != 0) {
 518                 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
 519                 return -EIO;
 520         }
 521
 522         ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
 523
 524         /*
 525          * Hardcode the address use for the extended board data
 526          * Ideally this should be pre-allocate by the OS at boot time
 527          * But since it is a new feature and board data is loaded
 528          * at init time, we have to workaround this from host.
 529          * It is difficult to patch the firmware boot code,
 530          * but possible in theory.
 531          */
 532
 533         param = ar->hw.board_ext_data_addr;
 534         ram_reserved_size = ar->hw.reserved_ram_size;
 535
 536         if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
 537                                         HI_ITEM(hi_board_ext_data)),
 538                              (u8 *)&param, 4) != 0) {
 539                 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
 540                 return -EIO;
 541         }
 542
 543         if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
 544                                         HI_ITEM(hi_end_ram_reserve_sz)),
 545                              (u8 *)&ram_reserved_size, 4) != 0) {
 546                 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
 547                 return -EIO;
 548         }
 549
 550         /* set the block size for the target */
 551         if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
 552                 /* use default number of control buffers */
 553                 return -EIO;
 554
 555         /* Configure GPIO AR600x UART */
 556         param = ar->hw.uarttx_pin;
 557         status = ath6kl_bmi_write(ar,
 558                                 ath6kl_get_hi_item_addr(ar,
 559                                 HI_ITEM(hi_dbg_uart_txpin)),
 560                                 (u8 *)&param, 4);
 561         if (status)
 562                 return status;
 563
 564         /* Configure target refclk_hz */
 565         param =  ar->hw.refclk_hz;
 566         status = ath6kl_bmi_write(ar,
 567                                 ath6kl_get_hi_item_addr(ar,
 568                                 HI_ITEM(hi_refclk_hz)),
 569                                 (u8 *)&param, 4);
 570         if (status)
 571                 return status;
 572
 573         return 0;
 574 }
 575
 576 void ath6kl_core_free(struct ath6kl *ar)
 577 {
 578         wiphy_free(ar->wiphy);
 579 }
 580
 581 void ath6kl_core_cleanup(struct ath6kl *ar)
 582 {
 583         ath6kl_hif_power_off(ar);
 584
 585         destroy_workqueue(ar->ath6kl_wq);
 586
 587         if (ar->htc_target)
 588                 ath6kl_htc_cleanup(ar->htc_target);
 589
 590         ath6kl_cookie_cleanup(ar);
 591
 592         ath6kl_cleanup_amsdu_rxbufs(ar);
 593
 594         ath6kl_bmi_cleanup(ar);
 595
 596         ath6kl_debug_cleanup(ar);
 597
 598         kfree(ar->fw_board);
 599         kfree(ar->fw_otp);
 600         kfree(ar->fw);
 601         kfree(ar->fw_patch);
 602
 603         ath6kl_deinit_ieee80211_hw(ar);
 604 }
 605
 606 /* firmware upload */
 607 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
 608                          u8 **fw, size_t *fw_len)
 609 {
 610         const struct firmware *fw_entry;
 611         int ret;
 612
 613         ret = request_firmware(&fw_entry, filename, ar->dev);
 614         if (ret)
 615                 return ret;
 616
 617         *fw_len = fw_entry->size;
 618         *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
 619
 620         if (*fw == NULL)
 621                 ret = -ENOMEM;
 622
 623         release_firmware(fw_entry);
 624
 625         return ret;
 626 }
 627
 628 #ifdef CONFIG_OF
 629 static const char *get_target_ver_dir(const struct ath6kl *ar)
 630 {
 631         switch (ar->version.target_ver) {
 632         case AR6003_HW_1_0_VERSION:
 633                 return "ath6k/AR6003/hw1.0";
 634         case AR6003_HW_2_0_VERSION:
 635                 return "ath6k/AR6003/hw2.0";
 636         case AR6003_HW_2_1_1_VERSION:
 637                 return "ath6k/AR6003/hw2.1.1";
 638         }
 639         ath6kl_warn("%s: unsupported target version 0x%x.\n", __func__,
 640                     ar->version.target_ver);
 641         return NULL;
 642 }
 643
 644 /*
 645  * Check the device tree for a board-id and use it to construct
 646  * the pathname to the firmware file.  Used (for now) to find a
 647  * fallback to the "bdata.bin" file--typically a symlink to the
 648  * appropriate board-specific file.
 649  */
 650 static bool check_device_tree(struct ath6kl *ar)
 651 {
 652         static const char *board_id_prop = "atheros,board-id";
 653         struct device_node *node;
 654         char board_filename[64];
 655         const char *board_id;
 656         int ret;
 657
 658         for_each_compatible_node(node, NULL, "atheros,ath6kl") {
 659                 board_id = of_get_property(node, board_id_prop, NULL);
 660                 if (board_id == NULL) {
 661                         ath6kl_warn("No \"%s\" property on %s node.\n",
 662                                     board_id_prop, node->name);
 663                         continue;
 664                 }
 665                 snprintf(board_filename, sizeof(board_filename),
 666                          "%s/bdata.%s.bin", get_target_ver_dir(ar), board_id);
 667
 668                 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
 669                                     &ar->fw_board_len);
 670                 if (ret) {
 671                         ath6kl_err("Failed to get DT board file %s: %d\n",
 672                                    board_filename, ret);
 673                         continue;
 674                 }
 675                 return true;
 676         }
 677         return false;
 678 }
 679 #else
 680 static bool check_device_tree(struct ath6kl *ar)
 681 {
 682         return false;
 683 }
 684 #endif /* CONFIG_OF */
 685
 686 static int ath6kl_fetch_board_file(struct ath6kl *ar)
 687 {
 688         const char *filename;
 689         int ret;
 690
 691         if (ar->fw_board != NULL)
 692                 return 0;
 693
 694         if (WARN_ON(ar->hw.fw_board == NULL))
 695                 return -EINVAL;
 696
 697         filename = ar->hw.fw_board;
 698
 699         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 700                             &ar->fw_board_len);
 701         if (ret == 0) {
 702                 /* managed to get proper board file */
 703                 return 0;
 704         }
 705
 706         if (check_device_tree(ar)) {
 707                 /* got board file from device tree */
 708                 return 0;
 709         }
 710
 711         /* there was no proper board file, try to use default instead */
 712         ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
 713                     filename, ret);
 714
 715         filename = ar->hw.fw_default_board;
 716
 717         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 718                             &ar->fw_board_len);
 719         if (ret) {
 720                 ath6kl_err("Failed to get default board file %s: %d\n",
 721                            filename, ret);
 722                 return ret;
 723         }
 724
 725         ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
 726         ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
 727
 728         return 0;
 729 }
 730
 731 static int ath6kl_fetch_otp_file(struct ath6kl *ar)
 732 {
 733         const char *filename;
 734         int ret;
 735
 736         if (ar->fw_otp != NULL)
 737                 return 0;
 738
 739         if (ar->hw.fw_otp == NULL) {
 740                 ath6kl_dbg(ATH6KL_DBG_BOOT,
 741                            "no OTP file configured for this hw\n");
 742                 return 0;
 743         }
 744
 745         filename = ar->hw.fw_otp;
 746
 747         ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
 748                             &ar->fw_otp_len);
 749         if (ret) {
 750                 ath6kl_err("Failed to get OTP file %s: %d\n",
 751                            filename, ret);
 752                 return ret;
 753         }
 754
 755         return 0;
 756 }
 757
 758 static int ath6kl_fetch_fw_file(struct ath6kl *ar)
 759 {
 760         const char *filename;
 761         int ret;
 762
 763         if (ar->fw != NULL)
 764                 return 0;
 765
 766         if (testmode) {
 767                 if (ar->hw.fw_tcmd == NULL) {
 768                         ath6kl_warn("testmode not supported\n");
 769                         return -EOPNOTSUPP;
 770                 }
 771
 772                 filename = ar->hw.fw_tcmd;
 773
 774                 set_bit(TESTMODE, &ar->flag);
 775
 776                 goto get_fw;
 777         }
 778
 779         if (WARN_ON(ar->hw.fw == NULL))
 780                 return -EINVAL;
 781
 782         filename = ar->hw.fw;
 783
 784 get_fw:
 785         ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 786         if (ret) {
 787                 ath6kl_err("Failed to get firmware file %s: %d\n",
 788                            filename, ret);
 789                 return ret;
 790         }
 791
 792         return 0;
 793 }
 794
 795 static int ath6kl_fetch_patch_file(struct ath6kl *ar)
 796 {
 797         const char *filename;
 798         int ret;
 799
 800         if (ar->fw_patch != NULL)
 801                 return 0;
 802
 803         if (ar->hw.fw_patch == NULL)
 804                 return 0;
 805
 806         filename = ar->hw.fw_patch;
 807
 808         ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
 809                             &ar->fw_patch_len);
 810         if (ret) {
 811                 ath6kl_err("Failed to get patch file %s: %d\n",
 812                            filename, ret);
 813                 return ret;
 814         }
 815
 816         return 0;
 817 }
 818
 819 static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
 820 {
 821         int ret;
 822
 823         ret = ath6kl_fetch_otp_file(ar);
 824         if (ret)
 825                 return ret;
 826
 827         ret = ath6kl_fetch_fw_file(ar);
 828         if (ret)
 829                 return ret;
 830
 831         ret = ath6kl_fetch_patch_file(ar);
 832         if (ret)
 833                 return ret;
 834
 835         return 0;
 836 }
 837
 838 static int ath6kl_fetch_fw_api2(struct ath6kl *ar)
 839 {
 840         size_t magic_len, len, ie_len;
 841         const struct firmware *fw;
 842         struct ath6kl_fw_ie *hdr;
 843         const char *filename;
 844         const u8 *data;
 845         int ret, ie_id, i, index, bit;
 846         __le32 *val;
 847
 848         if (ar->hw.fw_api2 == NULL)
 849                 return -EOPNOTSUPP;
 850
 851         filename = ar->hw.fw_api2;
 852
 853         ret = request_firmware(&fw, filename, ar->dev);
 854         if (ret)
 855                 return ret;
 856
 857         data = fw->data;
 858         len = fw->size;
 859
 860         /* magic also includes the null byte, check that as well */
 861         magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
 862
 863         if (len < magic_len) {
 864                 ret = -EINVAL;
 865                 goto out;
 866         }
 867
 868         if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
 869                 ret = -EINVAL;
 870                 goto out;
 871         }
 872
 873         len -= magic_len;
 874         data += magic_len;
 875
 876         /* loop elements */
 877         while (len > sizeof(struct ath6kl_fw_ie)) {
 878                 /* hdr is unaligned! */
 879                 hdr = (struct ath6kl_fw_ie *) data;
 880
 881                 ie_id = le32_to_cpup(&hdr->id);
 882                 ie_len = le32_to_cpup(&hdr->len);
 883
 884                 len -= sizeof(*hdr);
 885                 data += sizeof(*hdr);
 886
 887                 if (len < ie_len) {
 888                         ret = -EINVAL;
 889                         goto out;
 890                 }
 891
 892                 switch (ie_id) {
 893                 case ATH6KL_FW_IE_OTP_IMAGE:
 894                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
 895                                 ie_len);
 896
 897                         ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
 898
 899                         if (ar->fw_otp == NULL) {
 900                                 ret = -ENOMEM;
 901                                 goto out;
 902                         }
 903
 904                         ar->fw_otp_len = ie_len;
 905                         break;
 906                 case ATH6KL_FW_IE_FW_IMAGE:
 907                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
 908                                 ie_len);
 909
 910                         ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
 911
 912                         if (ar->fw == NULL) {
 913                                 ret = -ENOMEM;
 914                                 goto out;
 915                         }
 916
 917                         ar->fw_len = ie_len;
 918                         break;
 919                 case ATH6KL_FW_IE_PATCH_IMAGE:
 920                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
 921                                 ie_len);
 922
 923                         ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
 924
 925                         if (ar->fw_patch == NULL) {
 926                                 ret = -ENOMEM;
 927                                 goto out;
 928                         }
 929
 930                         ar->fw_patch_len = ie_len;
 931                         break;
 932                 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
 933                         val = (__le32 *) data;
 934                         ar->hw.reserved_ram_size = le32_to_cpup(val);
 935
 936                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 937                                    "found reserved ram size ie 0x%d\n",
 938                                    ar->hw.reserved_ram_size);
 939                         break;
 940                 case ATH6KL_FW_IE_CAPABILITIES:
 941                         if (ie_len < DIV_ROUND_UP(ATH6KL_FW_CAPABILITY_MAX, 8))
 942                                 break;
 943
 944                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 945                                    "found firmware capabilities ie (%zd B)\n",
 946                                    ie_len);
 947
 948                         for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
 949                                 index = i / 8;
 950                                 bit = i % 8;
 951
 952                                 if (data[index] & (1 << bit))
 953                                         __set_bit(i, ar->fw_capabilities);
 954                         }
 955
 956                         ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
 957                                         ar->fw_capabilities,
 958                                         sizeof(ar->fw_capabilities));
 959                         break;
 960                 case ATH6KL_FW_IE_PATCH_ADDR:
 961                         if (ie_len != sizeof(*val))
 962                                 break;
 963
 964                         val = (__le32 *) data;
 965                         ar->hw.dataset_patch_addr = le32_to_cpup(val);
 966
 967                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 968                                    "found patch address ie 0x%x\n",
 969                                    ar->hw.dataset_patch_addr);
 970                         break;
 971                 case ATH6KL_FW_IE_BOARD_ADDR:
 972                         if (ie_len != sizeof(*val))
 973                                 break;
 974
 975                         val = (__le32 *) data;
 976                         ar->hw.board_addr = le32_to_cpup(val);
 977
 978                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 979                                    "found board address ie 0x%x\n",
 980                                    ar->hw.board_addr);
 981                         break;
 982                 case ATH6KL_FW_IE_VIF_MAX:
 983                         if (ie_len != sizeof(*val))
 984                                 break;
 985
 986                         val = (__le32 *) data;
 987                         ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
 988                                             ATH6KL_VIF_MAX);
 989
 990                         if (ar->vif_max > 1 && !ar->p2p)
 991                                 ar->max_norm_iface = 2;
 992
 993                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 994                                    "found vif max ie %d\n", ar->vif_max);
 995                         break;
 996                 default:
 997                         ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
 998                                    le32_to_cpup(&hdr->id));
 999                         break;
1000                 }
1001
1002                 len -= ie_len;
1003                 data += ie_len;
1004         };
1005
1006         ret = 0;
1007 out:
1008         release_firmware(fw);
1009
1010         return ret;
1011 }
1012
1013 static int ath6kl_fetch_firmwares(struct ath6kl *ar)
1014 {
1015         int ret;
1016
1017         ret = ath6kl_fetch_board_file(ar);
1018         if (ret)
1019                 return ret;
1020
1021         ret = ath6kl_fetch_fw_api2(ar);
1022         if (ret == 0) {
1023                 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 2\n");
1024                 return 0;
1025         }
1026
1027         ret = ath6kl_fetch_fw_api1(ar);
1028         if (ret)
1029                 return ret;
1030
1031         ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 1\n");
1032
1033         return 0;
1034 }
1035
1036 static int ath6kl_upload_board_file(struct ath6kl *ar)
1037 {
1038         u32 board_address, board_ext_address, param;
1039         u32 board_data_size, board_ext_data_size;
1040         int ret;
1041
1042         if (WARN_ON(ar->fw_board == NULL))
1043                 return -ENOENT;
1044
1045         /*
1046          * Determine where in Target RAM to write Board Data.
1047          * For AR6004, host determine Target RAM address for
1048          * writing board data.
1049          */
1050         if (ar->hw.board_addr != 0) {
1051                 board_address = ar->hw.board_addr;
1052                 ath6kl_bmi_write(ar,
1053                                 ath6kl_get_hi_item_addr(ar,
1054                                 HI_ITEM(hi_board_data)),
1055                                 (u8 *) &board_address, 4);
1056         } else {
1057                 ath6kl_bmi_read(ar,
1058                                 ath6kl_get_hi_item_addr(ar,
1059                                 HI_ITEM(hi_board_data)),
1060                                 (u8 *) &board_address, 4);
1061         }
1062
1063         /* determine where in target ram to write extended board data */
1064         ath6kl_bmi_read(ar,
1065                         ath6kl_get_hi_item_addr(ar,
1066                         HI_ITEM(hi_board_ext_data)),
1067                         (u8 *) &board_ext_address, 4);
1068
1069         if (ar->target_type == TARGET_TYPE_AR6003 &&
1070             board_ext_address == 0) {
1071                 ath6kl_err("Failed to get board file target address.\n");
1072                 return -EINVAL;
1073         }
1074
1075         switch (ar->target_type) {
1076         case TARGET_TYPE_AR6003:
1077                 board_data_size = AR6003_BOARD_DATA_SZ;
1078                 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1079                 break;
1080         case TARGET_TYPE_AR6004:
1081                 board_data_size = AR6004_BOARD_DATA_SZ;
1082                 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1083                 break;
1084         default:
1085                 WARN_ON(1);
1086                 return -EINVAL;
1087                 break;
1088         }
1089
1090         if (board_ext_address &&
1091             ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1092
1093                 /* write extended board data */
1094                 ath6kl_dbg(ATH6KL_DBG_BOOT,
1095                            "writing extended board data to 0x%x (%d B)\n",
1096                            board_ext_address, board_ext_data_size);
1097
1098                 ret = ath6kl_bmi_write(ar, board_ext_address,
1099                                        ar->fw_board + board_data_size,
1100                                        board_ext_data_size);
1101                 if (ret) {
1102                         ath6kl_err("Failed to write extended board data: %d\n",
1103                                    ret);
1104                         return ret;
1105                 }
1106
1107                 /* record that extended board data is initialized */
1108                 param = (board_ext_data_size << 16) | 1;
1109
1110                 ath6kl_bmi_write(ar,
1111                                  ath6kl_get_hi_item_addr(ar,
1112                                  HI_ITEM(hi_board_ext_data_config)),
1113                                  (unsigned char *) &param, 4);
1114         }
1115
1116         if (ar->fw_board_len < board_data_size) {
1117                 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1118                 ret = -EINVAL;
1119                 return ret;
1120         }
1121
1122         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1123                    board_address, board_data_size);
1124
1125         ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1126                                board_data_size);
1127
1128         if (ret) {
1129                 ath6kl_err("Board file bmi write failed: %d\n", ret);
1130                 return ret;
1131         }
1132
1133         /* record the fact that Board Data IS initialized */
1134         param = 1;
1135         ath6kl_bmi_write(ar,
1136                          ath6kl_get_hi_item_addr(ar,
1137                          HI_ITEM(hi_board_data_initialized)),
1138                          (u8 *)&param, 4);
1139
1140         return ret;
1141 }
1142
1143 static int ath6kl_upload_otp(struct ath6kl *ar)
1144 {
1145         u32 address, param;
1146         bool from_hw = false;
1147         int ret;
1148
1149         if (ar->fw_otp == NULL)
1150                 return 0;
1151
1152         address = ar->hw.app_load_addr;
1153
1154         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1155                    ar->fw_otp_len);
1156
1157         ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1158                                        ar->fw_otp_len);
1159         if (ret) {
1160                 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1161                 return ret;
1162         }
1163
1164         /* read firmware start address */
1165         ret = ath6kl_bmi_read(ar,
1166                               ath6kl_get_hi_item_addr(ar,
1167                                                       HI_ITEM(hi_app_start)),
1168                               (u8 *) &address, sizeof(address));
1169
1170         if (ret) {
1171                 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1172                 return ret;
1173         }
1174
1175         if (ar->hw.app_start_override_addr == 0) {
1176                 ar->hw.app_start_override_addr = address;
1177                 from_hw = true;
1178         }
1179
1180         ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1181                    from_hw ? " (from hw)" : "",
1182                    ar->hw.app_start_override_addr);
1183
1184         /* execute the OTP code */
1185         ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1186                    ar->hw.app_start_override_addr);
1187         param = 0;
1188         ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1189
1190         return ret;
1191 }
1192
1193 static int ath6kl_upload_firmware(struct ath6kl *ar)
1194 {
1195         u32 address;
1196         int ret;
1197
1198         if (WARN_ON(ar->fw == NULL))
1199                 return 0;
1200
1201         address = ar->hw.app_load_addr;
1202
1203         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1204                    address, ar->fw_len);
1205
1206         ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1207
1208         if (ret) {
1209                 ath6kl_err("Failed to write firmware: %d\n", ret);
1210                 return ret;
1211         }
1212
1213         /*
1214          * Set starting address for firmware
1215          * Don't need to setup app_start override addr on AR6004
1216          */
1217         if (ar->target_type != TARGET_TYPE_AR6004) {
1218                 address = ar->hw.app_start_override_addr;
1219                 ath6kl_bmi_set_app_start(ar, address);
1220         }
1221         return ret;
1222 }
1223
1224 static int ath6kl_upload_patch(struct ath6kl *ar)
1225 {
1226         u32 address, param;
1227         int ret;
1228
1229         if (ar->fw_patch == NULL)
1230                 return 0;
1231
1232         address = ar->hw.dataset_patch_addr;
1233
1234         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1235                    address, ar->fw_patch_len);
1236
1237         ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1238         if (ret) {
1239                 ath6kl_err("Failed to write patch file: %d\n", ret);
1240                 return ret;
1241         }
1242
1243         param = address;
1244         ath6kl_bmi_write(ar,
1245                          ath6kl_get_hi_item_addr(ar,
1246                          HI_ITEM(hi_dset_list_head)),
1247                          (unsigned char *) &param, 4);
1248
1249         return 0;
1250 }
1251
1252 static int ath6kl_init_upload(struct ath6kl *ar)
1253 {
1254         u32 param, options, sleep, address;
1255         int status = 0;
1256
1257         if (ar->target_type != TARGET_TYPE_AR6003 &&
1258                 ar->target_type != TARGET_TYPE_AR6004)
1259                 return -EINVAL;
1260
1261         /* temporarily disable system sleep */
1262         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1263         status = ath6kl_bmi_reg_read(ar, address, &param);
1264         if (status)
1265                 return status;
1266
1267         options = param;
1268
1269         param |= ATH6KL_OPTION_SLEEP_DISABLE;
1270         status = ath6kl_bmi_reg_write(ar, address, param);
1271         if (status)
1272                 return status;
1273
1274         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1275         status = ath6kl_bmi_reg_read(ar, address, &param);
1276         if (status)
1277                 return status;
1278
1279         sleep = param;
1280
1281         param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1282         status = ath6kl_bmi_reg_write(ar, address, param);
1283         if (status)
1284                 return status;
1285
1286         ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1287                    options, sleep);
1288
1289         /* program analog PLL register */
1290         /* no need to control 40/44MHz clock on AR6004 */
1291         if (ar->target_type != TARGET_TYPE_AR6004) {
1292                 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1293                                               0xF9104001);
1294
1295                 if (status)
1296                         return status;
1297
1298                 /* Run at 80/88MHz by default */
1299                 param = SM(CPU_CLOCK_STANDARD, 1);
1300
1301                 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1302                 status = ath6kl_bmi_reg_write(ar, address, param);
1303                 if (status)
1304                         return status;
1305         }
1306
1307         param = 0;
1308         address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1309         param = SM(LPO_CAL_ENABLE, 1);
1310         status = ath6kl_bmi_reg_write(ar, address, param);
1311         if (status)
1312                 return status;
1313
1314         /* WAR to avoid SDIO CRC err */
1315         if (ar->version.target_ver == AR6003_HW_2_0_VERSION) {
1316                 ath6kl_err("temporary war to avoid sdio crc error\n");
1317
1318                 param = 0x20;
1319
1320                 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1321                 status = ath6kl_bmi_reg_write(ar, address, param);
1322                 if (status)
1323                         return status;
1324
1325                 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1326                 status = ath6kl_bmi_reg_write(ar, address, param);
1327                 if (status)
1328                         return status;
1329
1330                 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1331                 status = ath6kl_bmi_reg_write(ar, address, param);
1332                 if (status)
1333                         return status;
1334
1335                 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1336                 status = ath6kl_bmi_reg_write(ar, address, param);
1337                 if (status)
1338                         return status;
1339         }
1340
1341         /* write EEPROM data to Target RAM */
1342         status = ath6kl_upload_board_file(ar);
1343         if (status)
1344                 return status;
1345
1346         /* transfer One time Programmable data */
1347         status = ath6kl_upload_otp(ar);
1348         if (status)
1349                 return status;
1350
1351         /* Download Target firmware */
1352         status = ath6kl_upload_firmware(ar);
1353         if (status)
1354                 return status;
1355
1356         status = ath6kl_upload_patch(ar);
1357         if (status)
1358                 return status;
1359
1360         /* Restore system sleep */
1361         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1362         status = ath6kl_bmi_reg_write(ar, address, sleep);
1363         if (status)
1364                 return status;
1365
1366         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1367         param = options | 0x20;
1368         status = ath6kl_bmi_reg_write(ar, address, param);
1369         if (status)
1370                 return status;
1371
1372         return status;
1373 }
1374
1375 static int ath6kl_init_hw_params(struct ath6kl *ar)
1376 {
1377         const struct ath6kl_hw *hw;
1378         int i;
1379
1380         for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1381                 hw = &hw_list[i];
1382
1383                 if (hw->id == ar->version.target_ver)
1384                         break;
1385         }
1386
1387         if (i == ARRAY_SIZE(hw_list)) {
1388                 ath6kl_err("Unsupported hardware version: 0x%x\n",
1389                            ar->version.target_ver);
1390                 return -EINVAL;
1391         }
1392
1393         ar->hw = *hw;
1394
1395         ath6kl_dbg(ATH6KL_DBG_BOOT,
1396                    "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1397                    ar->version.target_ver, ar->target_type,
1398                    ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1399         ath6kl_dbg(ATH6KL_DBG_BOOT,
1400                    "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1401                    ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1402                    ar->hw.reserved_ram_size);
1403         ath6kl_dbg(ATH6KL_DBG_BOOT,
1404                    "refclk_hz %d uarttx_pin %d",
1405                    ar->hw.refclk_hz, ar->hw.uarttx_pin);
1406
1407         return 0;
1408 }
1409
1410 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1411 {
1412         switch (type) {
1413         case ATH6KL_HIF_TYPE_SDIO:
1414                 return "sdio";
1415         case ATH6KL_HIF_TYPE_USB:
1416                 return "usb";
1417         }
1418
1419         return NULL;
1420 }
1421
1422 int ath6kl_init_hw_start(struct ath6kl *ar)
1423 {
1424         long timeleft;
1425         int ret, i;
1426
1427         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1428
1429         ret = ath6kl_hif_power_on(ar);
1430         if (ret)
1431                 return ret;
1432
1433         ret = ath6kl_configure_target(ar);
1434         if (ret)
1435                 goto err_power_off;
1436
1437         ret = ath6kl_init_upload(ar);
1438         if (ret)
1439                 goto err_power_off;
1440
1441         /* Do we need to finish the BMI phase */
1442         /* FIXME: return error from ath6kl_bmi_done() */
1443         if (ath6kl_bmi_done(ar)) {
1444                 ret = -EIO;
1445                 goto err_power_off;
1446         }
1447
1448         /*
1449          * The reason we have to wait for the target here is that the
1450          * driver layer has to init BMI in order to set the host block
1451          * size.
1452          */
1453         if (ath6kl_htc_wait_target(ar->htc_target)) {
1454                 ret = -EIO;
1455                 goto err_power_off;
1456         }
1457
1458         if (ath6kl_init_service_ep(ar)) {
1459                 ret = -EIO;
1460                 goto err_cleanup_scatter;
1461         }
1462
1463         /* setup credit distribution */
1464         ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
1465
1466         /* start HTC */
1467         ret = ath6kl_htc_start(ar->htc_target);
1468         if (ret) {
1469                 /* FIXME: call this */
1470                 ath6kl_cookie_cleanup(ar);
1471                 goto err_cleanup_scatter;
1472         }
1473
1474         /* Wait for Wmi event to be ready */
1475         timeleft = wait_event_interruptible_timeout(ar->event_wq,
1476                                                     test_bit(WMI_READY,
1477                                                              &ar->flag),
1478                                                     WMI_TIMEOUT);
1479
1480         ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1481
1482
1483         if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1484                 ath6kl_info("%s %s fw %s%s\n",
1485                             ar->hw.name,
1486                             ath6kl_init_get_hif_name(ar->hif_type),
1487                             ar->wiphy->fw_version,
1488                             test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1489         }
1490
1491         if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1492                 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1493                            ATH6KL_ABI_VERSION, ar->version.abi_ver);
1494                 ret = -EIO;
1495                 goto err_htc_stop;
1496         }
1497
1498         if (!timeleft || signal_pending(current)) {
1499                 ath6kl_err("wmi is not ready or wait was interrupted\n");
1500                 ret = -EIO;
1501                 goto err_htc_stop;
1502         }
1503
1504         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1505
1506         /* communicate the wmi protocol verision to the target */
1507         /* FIXME: return error */
1508         if ((ath6kl_set_host_app_area(ar)) != 0)
1509                 ath6kl_err("unable to set the host app area\n");
1510
1511         for (i = 0; i < ar->vif_max; i++) {
1512                 ret = ath6kl_target_config_wlan_params(ar, i);
1513                 if (ret)
1514                         goto err_htc_stop;
1515         }
1516
1517         ar->state = ATH6KL_STATE_ON;
1518
1519         return 0;
1520
1521 err_htc_stop:
1522         ath6kl_htc_stop(ar->htc_target);
1523 err_cleanup_scatter:
1524         ath6kl_hif_cleanup_scatter(ar);
1525 err_power_off:
1526         ath6kl_hif_power_off(ar);
1527
1528         return ret;
1529 }
1530
1531 int ath6kl_init_hw_stop(struct ath6kl *ar)
1532 {
1533         int ret;
1534
1535         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1536
1537         ath6kl_htc_stop(ar->htc_target);
1538
1539         ath6kl_hif_stop(ar);
1540
1541         ath6kl_bmi_reset(ar);
1542
1543         ret = ath6kl_hif_power_off(ar);
1544         if (ret)
1545                 ath6kl_warn("failed to power off hif: %d\n", ret);
1546
1547         ar->state = ATH6KL_STATE_OFF;
1548
1549         return 0;
1550 }
1551
1552 int ath6kl_core_init(struct ath6kl *ar)
1553 {
1554         struct ath6kl_bmi_target_info targ_info;
1555         struct net_device *ndev;
1556         int ret = 0, i;
1557
1558         ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1559         if (!ar->ath6kl_wq)
1560                 return -ENOMEM;
1561
1562         ret = ath6kl_bmi_init(ar);
1563         if (ret)
1564                 goto err_wq;
1565
1566         /*
1567          * Turn on power to get hardware (target) version and leave power
1568          * on delibrately as we will boot the hardware anyway within few
1569          * seconds.
1570          */
1571         ret = ath6kl_hif_power_on(ar);
1572         if (ret)
1573                 goto err_bmi_cleanup;
1574
1575         ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1576         if (ret)
1577                 goto err_power_off;
1578
1579         ar->version.target_ver = le32_to_cpu(targ_info.version);
1580         ar->target_type = le32_to_cpu(targ_info.type);
1581         ar->wiphy->hw_version = le32_to_cpu(targ_info.version);
1582
1583         ret = ath6kl_init_hw_params(ar);
1584         if (ret)
1585                 goto err_power_off;
1586
1587         ar->htc_target = ath6kl_htc_create(ar);
1588
1589         if (!ar->htc_target) {
1590                 ret = -ENOMEM;
1591                 goto err_power_off;
1592         }
1593
1594         ret = ath6kl_fetch_firmwares(ar);
1595         if (ret)
1596                 goto err_htc_cleanup;
1597
1598         /* FIXME: we should free all firmwares in the error cases below */
1599
1600         /* Indicate that WMI is enabled (although not ready yet) */
1601         set_bit(WMI_ENABLED, &ar->flag);
1602         ar->wmi = ath6kl_wmi_init(ar);
1603         if (!ar->wmi) {
1604                 ath6kl_err("failed to initialize wmi\n");
1605                 ret = -EIO;
1606                 goto err_htc_cleanup;
1607         }
1608
1609         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1610
1611         ret = ath6kl_register_ieee80211_hw(ar);
1612         if (ret)
1613                 goto err_node_cleanup;
1614
1615         ret = ath6kl_debug_init(ar);
1616         if (ret) {
1617                 wiphy_unregister(ar->wiphy);
1618                 goto err_node_cleanup;
1619         }
1620
1621         for (i = 0; i < ar->vif_max; i++)
1622                 ar->avail_idx_map |= BIT(i);
1623
1624         rtnl_lock();
1625
1626         /* Add an initial station interface */
1627         ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0,
1628                                     INFRA_NETWORK);
1629
1630         rtnl_unlock();
1631
1632         if (!ndev) {
1633                 ath6kl_err("Failed to instantiate a network device\n");
1634                 ret = -ENOMEM;
1635                 wiphy_unregister(ar->wiphy);
1636                 goto err_debug_init;
1637         }
1638
1639
1640         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1641                         __func__, ndev->name, ndev, ar);
1642
1643         /* setup access class priority mappings */
1644         ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest  */
1645         ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1646         ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1647         ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1648
1649         /* give our connected endpoints some buffers */
1650         ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1651         ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1652
1653         /* allocate some buffers that handle larger AMSDU frames */
1654         ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1655
1656         ath6kl_cookie_init(ar);
1657
1658         ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1659                          ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1660
1661         if (suspend_cutpower)
1662                 ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER;
1663
1664         ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
1665                             WIPHY_FLAG_HAVE_AP_SME |
1666                             WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1667                             WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1668
1669         if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities))
1670                 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
1671
1672         ar->wiphy->probe_resp_offload =
1673                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1674                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1675                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P |
1676                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U;
1677
1678         set_bit(FIRST_BOOT, &ar->flag);
1679
1680         ret = ath6kl_init_hw_start(ar);
1681         if (ret) {
1682                 ath6kl_err("Failed to start hardware: %d\n", ret);
1683                 goto err_rxbuf_cleanup;
1684         }
1685
1686         /*
1687          * Set mac address which is received in ready event
1688          * FIXME: Move to ath6kl_interface_add()
1689          */
1690         memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
1691
1692         return ret;
1693
1694 err_rxbuf_cleanup:
1695         ath6kl_htc_flush_rx_buf(ar->htc_target);
1696         ath6kl_cleanup_amsdu_rxbufs(ar);
1697         rtnl_lock();
1698         ath6kl_deinit_if_data(netdev_priv(ndev));
1699         rtnl_unlock();
1700         wiphy_unregister(ar->wiphy);
1701 err_debug_init:
1702         ath6kl_debug_cleanup(ar);
1703 err_node_cleanup:
1704         ath6kl_wmi_shutdown(ar->wmi);
1705         clear_bit(WMI_ENABLED, &ar->flag);
1706         ar->wmi = NULL;
1707 err_htc_cleanup:
1708         ath6kl_htc_cleanup(ar->htc_target);
1709 err_power_off:
1710         ath6kl_hif_power_off(ar);
1711 err_bmi_cleanup:
1712         ath6kl_bmi_cleanup(ar);
1713 err_wq:
1714         destroy_workqueue(ar->ath6kl_wq);
1715
1716         return ret;
1717 }
1718
1719 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1720 {
1721         static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1722         bool discon_issued;
1723
1724         netif_stop_queue(vif->ndev);
1725
1726         clear_bit(WLAN_ENABLED, &vif->flags);
1727
1728         if (wmi_ready) {
1729                 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1730                                 test_bit(CONNECT_PEND, &vif->flags);
1731                 ath6kl_disconnect(vif);
1732                 del_timer(&vif->disconnect_timer);
1733
1734                 if (discon_issued)
1735                         ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1736                                                 (vif->nw_type & AP_NETWORK) ?
1737                                                 bcast_mac : vif->bssid,
1738                                                 0, NULL, 0);
1739         }
1740
1741         if (vif->scan_req) {
1742                 cfg80211_scan_done(vif->scan_req, true);
1743                 vif->scan_req = NULL;
1744         }
1745 }
1746
1747 void ath6kl_stop_txrx(struct ath6kl *ar)
1748 {
1749         struct ath6kl_vif *vif, *tmp_vif;
1750
1751         set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1752
1753         if (down_interruptible(&ar->sem)) {
1754                 ath6kl_err("down_interruptible failed\n");
1755                 return;
1756         }
1757
1758         spin_lock_bh(&ar->list_lock);
1759         list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1760                 list_del(&vif->list);
1761                 spin_unlock_bh(&ar->list_lock);
1762                 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1763                 rtnl_lock();
1764                 ath6kl_deinit_if_data(vif);
1765                 rtnl_unlock();
1766                 spin_lock_bh(&ar->list_lock);
1767         }
1768         spin_unlock_bh(&ar->list_lock);
1769
1770         clear_bit(WMI_READY, &ar->flag);
1771
1772         /*
1773          * After wmi_shudown all WMI events will be dropped. We
1774          * need to cleanup the buffers allocated in AP mode and
1775          * give disconnect notification to stack, which usually
1776          * happens in the disconnect_event. Simulate the disconnect
1777          * event by calling the function directly. Sometimes
1778          * disconnect_event will be received when the debug logs
1779          * are collected.
1780          */
1781         ath6kl_wmi_shutdown(ar->wmi);
1782
1783         clear_bit(WMI_ENABLED, &ar->flag);
1784         if (ar->htc_target) {
1785                 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1786                 ath6kl_htc_stop(ar->htc_target);
1787         }
1788
1789         /*
1790          * Try to reset the device if we can. The driver may have been
1791          * configure NOT to reset the target during a debug session.
1792          */
1793         ath6kl_dbg(ATH6KL_DBG_TRC,
1794                         "attempting to reset target on instance destroy\n");
1795         ath6kl_reset_device(ar, ar->target_type, true, true);
1796
1797         clear_bit(WLAN_ENABLED, &ar->flag);
1798 }