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
  45                 /* hw2.0 needs override address hardcoded */
  46                 .app_start_override_addr        = 0x944C00,
  47
  48                 .fw_otp                 = AR6003_HW_2_0_OTP_FILE,
  49                 .fw                     = AR6003_HW_2_0_FIRMWARE_FILE,
  50                 .fw_tcmd                = AR6003_HW_2_0_TCMD_FIRMWARE_FILE,
  51                 .fw_patch               = AR6003_HW_2_0_PATCH_FILE,
  52                 .fw_api2                = AR6003_HW_2_0_FIRMWARE_2_FILE,
  53                 .fw_board               = AR6003_HW_2_0_BOARD_DATA_FILE,
  54                 .fw_default_board       = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE,
  55         },
  56         {
  57                 .id                             = AR6003_HW_2_1_1_VERSION,
  58                 .name                           = "ar6003 hw 2.1.1",
  59                 .dataset_patch_addr             = 0x57ff74,
  60                 .app_load_addr                  = 0x1234,
  61                 .board_ext_data_addr            = 0x542330,
  62                 .reserved_ram_size              = 512,
  63
  64                 .fw_otp                 = AR6003_HW_2_1_1_OTP_FILE,
  65                 .fw                     = AR6003_HW_2_1_1_FIRMWARE_FILE,
  66                 .fw_tcmd                = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
  67                 .fw_patch               = AR6003_HW_2_1_1_PATCH_FILE,
  68                 .fw_api2                = AR6003_HW_2_1_1_FIRMWARE_2_FILE,
  69                 .fw_board               = AR6003_HW_2_1_1_BOARD_DATA_FILE,
  70                 .fw_default_board       = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
  71         },
  72         {
  73                 .id                             = AR6004_HW_1_0_VERSION,
  74                 .name                           = "ar6004 hw 1.0",
  75                 .dataset_patch_addr             = 0x57e884,
  76                 .app_load_addr                  = 0x1234,
  77                 .board_ext_data_addr            = 0x437000,
  78                 .reserved_ram_size              = 19456,
  79                 .board_addr                     = 0x433900,
  80
  81                 .fw                     = AR6004_HW_1_0_FIRMWARE_FILE,
  82                 .fw_api2                = AR6004_HW_1_0_FIRMWARE_2_FILE,
  83                 .fw_board               = AR6004_HW_1_0_BOARD_DATA_FILE,
  84                 .fw_default_board       = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
  85         },
  86         {
  87                 .id                             = AR6004_HW_1_1_VERSION,
  88                 .name                           = "ar6004 hw 1.1",
  89                 .dataset_patch_addr             = 0x57e884,
  90                 .app_load_addr                  = 0x1234,
  91                 .board_ext_data_addr            = 0x437000,
  92                 .reserved_ram_size              = 11264,
  93                 .board_addr                     = 0x43d400,
  94
  95                 .fw                     = AR6004_HW_1_1_FIRMWARE_FILE,
  96                 .fw_api2                = AR6004_HW_1_1_FIRMWARE_2_FILE,
  97                 .fw_board               = AR6004_HW_1_1_BOARD_DATA_FILE,
  98                 .fw_default_board       = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
  99         },
 100 };
 101
 102 /*
 103  * Include definitions here that can be used to tune the WLAN module
 104  * behavior. Different customers can tune the behavior as per their needs,
 105  * here.
 106  */
 107
 108 /*
 109  * This configuration item enable/disable keepalive support.
 110  * Keepalive support: In the absence of any data traffic to AP, null
 111  * frames will be sent to the AP at periodic interval, to keep the association
 112  * active. This configuration item defines the periodic interval.
 113  * Use value of zero to disable keepalive support
 114  * Default: 60 seconds
 115  */
 116 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
 117
 118 /*
 119  * This configuration item sets the value of disconnect timeout
 120  * Firmware delays sending the disconnec event to the host for this
 121  * timeout after is gets disconnected from the current AP.
 122  * If the firmware successly roams within the disconnect timeout
 123  * it sends a new connect event
 124  */
 125 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
 126
 127 #define CONFIG_AR600x_DEBUG_UART_TX_PIN 8
 128
 129 #define ATH6KL_DATA_OFFSET    64
 130 struct sk_buff *ath6kl_buf_alloc(int size)
 131 {
 132         struct sk_buff *skb;
 133         u16 reserved;
 134
 135         /* Add chacheline space at front and back of buffer */
 136         reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
 137                    sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
 138         skb = dev_alloc_skb(size + reserved);
 139
 140         if (skb)
 141                 skb_reserve(skb, reserved - L1_CACHE_BYTES);
 142         return skb;
 143 }
 144
 145 void ath6kl_init_profile_info(struct ath6kl_vif *vif)
 146 {
 147         vif->ssid_len = 0;
 148         memset(vif->ssid, 0, sizeof(vif->ssid));
 149
 150         vif->dot11_auth_mode = OPEN_AUTH;
 151         vif->auth_mode = NONE_AUTH;
 152         vif->prwise_crypto = NONE_CRYPT;
 153         vif->prwise_crypto_len = 0;
 154         vif->grp_crypto = NONE_CRYPT;
 155         vif->grp_crypto_len = 0;
 156         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 157         memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
 158         memset(vif->bssid, 0, sizeof(vif->bssid));
 159         vif->bss_ch = 0;
 160 }
 161
 162 static int ath6kl_set_host_app_area(struct ath6kl *ar)
 163 {
 164         u32 address, data;
 165         struct host_app_area host_app_area;
 166
 167         /* Fetch the address of the host_app_area_s
 168          * instance in the host interest area */
 169         address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
 170         address = TARG_VTOP(ar->target_type, address);
 171
 172         if (ath6kl_diag_read32(ar, address, &data))
 173                 return -EIO;
 174
 175         address = TARG_VTOP(ar->target_type, data);
 176         host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
 177         if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
 178                               sizeof(struct host_app_area)))
 179                 return -EIO;
 180
 181         return 0;
 182 }
 183
 184 static inline void set_ac2_ep_map(struct ath6kl *ar,
 185                                   u8 ac,
 186                                   enum htc_endpoint_id ep)
 187 {
 188         ar->ac2ep_map[ac] = ep;
 189         ar->ep2ac_map[ep] = ac;
 190 }
 191
 192 /* connect to a service */
 193 static int ath6kl_connectservice(struct ath6kl *ar,
 194                                  struct htc_service_connect_req  *con_req,
 195                                  char *desc)
 196 {
 197         int status;
 198         struct htc_service_connect_resp response;
 199
 200         memset(&response, 0, sizeof(response));
 201
 202         status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
 203         if (status) {
 204                 ath6kl_err("failed to connect to %s service status:%d\n",
 205                            desc, status);
 206                 return status;
 207         }
 208
 209         switch (con_req->svc_id) {
 210         case WMI_CONTROL_SVC:
 211                 if (test_bit(WMI_ENABLED, &ar->flag))
 212                         ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
 213                 ar->ctrl_ep = response.endpoint;
 214                 break;
 215         case WMI_DATA_BE_SVC:
 216                 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
 217                 break;
 218         case WMI_DATA_BK_SVC:
 219                 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
 220                 break;
 221         case WMI_DATA_VI_SVC:
 222                 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
 223                 break;
 224         case WMI_DATA_VO_SVC:
 225                 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
 226                 break;
 227         default:
 228                 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
 229                 return -EINVAL;
 230         }
 231
 232         return 0;
 233 }
 234
 235 static int ath6kl_init_service_ep(struct ath6kl *ar)
 236 {
 237         struct htc_service_connect_req connect;
 238
 239         memset(&connect, 0, sizeof(connect));
 240
 241         /* these fields are the same for all service endpoints */
 242         connect.ep_cb.rx = ath6kl_rx;
 243         connect.ep_cb.rx_refill = ath6kl_rx_refill;
 244         connect.ep_cb.tx_full = ath6kl_tx_queue_full;
 245
 246         /*
 247          * Set the max queue depth so that our ath6kl_tx_queue_full handler
 248          * gets called.
 249         */
 250         connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
 251         connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
 252         if (!connect.ep_cb.rx_refill_thresh)
 253                 connect.ep_cb.rx_refill_thresh++;
 254
 255         /* connect to control service */
 256         connect.svc_id = WMI_CONTROL_SVC;
 257         if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
 258                 return -EIO;
 259
 260         connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
 261
 262         /*
 263          * Limit the HTC message size on the send path, although e can
 264          * receive A-MSDU frames of 4K, we will only send ethernet-sized
 265          * (802.3) frames on the send path.
 266          */
 267         connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
 268
 269         /*
 270          * To reduce the amount of committed memory for larger A_MSDU
 271          * frames, use the recv-alloc threshold mechanism for larger
 272          * packets.
 273          */
 274         connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
 275         connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
 276
 277         /*
 278          * For the remaining data services set the connection flag to
 279          * reduce dribbling, if configured to do so.
 280          */
 281         connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
 282         connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
 283         connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
 284
 285         connect.svc_id = WMI_DATA_BE_SVC;
 286
 287         if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
 288                 return -EIO;
 289
 290         /* connect to back-ground map this to WMI LOW_PRI */
 291         connect.svc_id = WMI_DATA_BK_SVC;
 292         if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
 293                 return -EIO;
 294
 295         /* connect to Video service, map this to to HI PRI */
 296         connect.svc_id = WMI_DATA_VI_SVC;
 297         if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
 298                 return -EIO;
 299
 300         /*
 301          * Connect to VO service, this is currently not mapped to a WMI
 302          * priority stream due to historical reasons. WMI originally
 303          * defined 3 priorities over 3 mailboxes We can change this when
 304          * WMI is reworked so that priorities are not dependent on
 305          * mailboxes.
 306          */
 307         connect.svc_id = WMI_DATA_VO_SVC;
 308         if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
 309                 return -EIO;
 310
 311         return 0;
 312 }
 313
 314 void ath6kl_init_control_info(struct ath6kl_vif *vif)
 315 {
 316         ath6kl_init_profile_info(vif);
 317         vif->def_txkey_index = 0;
 318         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 319         vif->ch_hint = 0;
 320 }
 321
 322 /*
 323  * Set HTC/Mbox operational parameters, this can only be called when the
 324  * target is in the BMI phase.
 325  */
 326 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
 327                                  u8 htc_ctrl_buf)
 328 {
 329         int status;
 330         u32 blk_size;
 331
 332         blk_size = ar->mbox_info.block_size;
 333
 334         if (htc_ctrl_buf)
 335                 blk_size |=  ((u32)htc_ctrl_buf) << 16;
 336
 337         /* set the host interest area for the block size */
 338         status = ath6kl_bmi_write(ar,
 339                         ath6kl_get_hi_item_addr(ar,
 340                         HI_ITEM(hi_mbox_io_block_sz)),
 341                         (u8 *)&blk_size,
 342                         4);
 343         if (status) {
 344                 ath6kl_err("bmi_write_memory for IO block size failed\n");
 345                 goto out;
 346         }
 347
 348         ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
 349                    blk_size,
 350                    ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
 351
 352         if (mbox_isr_yield_val) {
 353                 /* set the host interest area for the mbox ISR yield limit */
 354                 status = ath6kl_bmi_write(ar,
 355                                 ath6kl_get_hi_item_addr(ar,
 356                                 HI_ITEM(hi_mbox_isr_yield_limit)),
 357                                 (u8 *)&mbox_isr_yield_val,
 358                                 4);
 359                 if (status) {
 360                         ath6kl_err("bmi_write_memory for yield limit failed\n");
 361                         goto out;
 362                 }
 363         }
 364
 365 out:
 366         return status;
 367 }
 368
 369 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
 370 {
 371         int status = 0;
 372         int ret;
 373
 374         /*
 375          * Configure the device for rx dot11 header rules. "0,0" are the
 376          * default values. Required if checksum offload is needed. Set
 377          * RxMetaVersion to 2.
 378          */
 379         if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
 380                                                ar->rx_meta_ver, 0, 0)) {
 381                 ath6kl_err("unable to set the rx frame format\n");
 382                 status = -EIO;
 383         }
 384
 385         if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
 386                 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
 387                      IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
 388                         ath6kl_err("unable to set power save fail event policy\n");
 389                         status = -EIO;
 390                 }
 391
 392         if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
 393                 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
 394                      WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
 395                         ath6kl_err("unable to set barker preamble policy\n");
 396                         status = -EIO;
 397                 }
 398
 399         if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
 400                         WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
 401                 ath6kl_err("unable to set keep alive interval\n");
 402                 status = -EIO;
 403         }
 404
 405         if (ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
 406                         WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
 407                 ath6kl_err("unable to set disconnect timeout\n");
 408                 status = -EIO;
 409         }
 410
 411         if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
 412                 if (ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED)) {
 413                         ath6kl_err("unable to set txop bursting\n");
 414                         status = -EIO;
 415                 }
 416
 417         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 418                 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
 419                                               P2P_FLAG_CAPABILITIES_REQ |
 420                                               P2P_FLAG_MACADDR_REQ |
 421                                               P2P_FLAG_HMODEL_REQ);
 422                 if (ret) {
 423                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
 424                                    "capabilities (%d) - assuming P2P not "
 425                                    "supported\n", ret);
 426                         ar->p2p = 0;
 427                 }
 428         }
 429
 430         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 431                 /* Enable Probe Request reporting for P2P */
 432                 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
 433                 if (ret) {
 434                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
 435                                    "Request reporting (%d)\n", ret);
 436                 }
 437         }
 438
 439         return status;
 440 }
 441
 442 int ath6kl_configure_target(struct ath6kl *ar)
 443 {
 444         u32 param, ram_reserved_size;
 445         u8 fw_iftype, fw_mode = 0, fw_submode = 0;
 446         int i;
 447
 448         /*
 449          * Note: Even though the firmware interface type is
 450          * chosen as BSS_STA for all three interfaces, can
 451          * be configured to IBSS/AP as long as the fw submode
 452          * remains normal mode (0 - AP, STA and IBSS). But
 453          * due to an target assert in firmware only one interface is
 454          * configured for now.
 455          */
 456         fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
 457
 458         for (i = 0; i < ar->vif_max; i++)
 459                 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
 460
 461         /*
 462          * By default, submodes :
 463          *              vif[0] - AP/STA/IBSS
 464          *              vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
 465          *              vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
 466          */
 467
 468         for (i = 0; i < ar->max_norm_iface; i++)
 469                 fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
 470                               (i * HI_OPTION_FW_SUBMODE_BITS);
 471
 472         for (i = ar->max_norm_iface; i < ar->vif_max; i++)
 473                 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 474                               (i * HI_OPTION_FW_SUBMODE_BITS);
 475
 476         if (ar->p2p && ar->vif_max == 1)
 477                 fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
 478
 479         param = HTC_PROTOCOL_VERSION;
 480         if (ath6kl_bmi_write(ar,
 481                              ath6kl_get_hi_item_addr(ar,
 482                              HI_ITEM(hi_app_host_interest)),
 483                              (u8 *)&param, 4) != 0) {
 484                 ath6kl_err("bmi_write_memory for htc version failed\n");
 485                 return -EIO;
 486         }
 487
 488         /* set the firmware mode to STA/IBSS/AP */
 489         param = 0;
 490
 491         if (ath6kl_bmi_read(ar,
 492                             ath6kl_get_hi_item_addr(ar,
 493                             HI_ITEM(hi_option_flag)),
 494                             (u8 *)&param, 4) != 0) {
 495                 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
 496                 return -EIO;
 497         }
 498
 499         param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
 500         param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
 501         param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
 502
 503         param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
 504         param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
 505
 506         if (ath6kl_bmi_write(ar,
 507                              ath6kl_get_hi_item_addr(ar,
 508                              HI_ITEM(hi_option_flag)),
 509                              (u8 *)&param,
 510                              4) != 0) {
 511                 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
 512                 return -EIO;
 513         }
 514
 515         ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
 516
 517         /*
 518          * Hardcode the address use for the extended board data
 519          * Ideally this should be pre-allocate by the OS at boot time
 520          * But since it is a new feature and board data is loaded
 521          * at init time, we have to workaround this from host.
 522          * It is difficult to patch the firmware boot code,
 523          * but possible in theory.
 524          */
 525
 526         param = ar->hw.board_ext_data_addr;
 527         ram_reserved_size = ar->hw.reserved_ram_size;
 528
 529         if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
 530                                         HI_ITEM(hi_board_ext_data)),
 531                              (u8 *)&param, 4) != 0) {
 532                 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
 533                 return -EIO;
 534         }
 535
 536         if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
 537                                         HI_ITEM(hi_end_ram_reserve_sz)),
 538                              (u8 *)&ram_reserved_size, 4) != 0) {
 539                 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
 540                 return -EIO;
 541         }
 542
 543         /* set the block size for the target */
 544         if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
 545                 /* use default number of control buffers */
 546                 return -EIO;
 547
 548         return 0;
 549 }
 550
 551 void ath6kl_core_free(struct ath6kl *ar)
 552 {
 553         wiphy_free(ar->wiphy);
 554 }
 555
 556 void ath6kl_core_cleanup(struct ath6kl *ar)
 557 {
 558         ath6kl_hif_power_off(ar);
 559
 560         destroy_workqueue(ar->ath6kl_wq);
 561
 562         if (ar->htc_target)
 563                 ath6kl_htc_cleanup(ar->htc_target);
 564
 565         ath6kl_cookie_cleanup(ar);
 566
 567         ath6kl_cleanup_amsdu_rxbufs(ar);
 568
 569         ath6kl_bmi_cleanup(ar);
 570
 571         ath6kl_debug_cleanup(ar);
 572
 573         kfree(ar->fw_board);
 574         kfree(ar->fw_otp);
 575         kfree(ar->fw);
 576         kfree(ar->fw_patch);
 577
 578         ath6kl_deinit_ieee80211_hw(ar);
 579 }
 580
 581 /* firmware upload */
 582 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
 583                          u8 **fw, size_t *fw_len)
 584 {
 585         const struct firmware *fw_entry;
 586         int ret;
 587
 588         ret = request_firmware(&fw_entry, filename, ar->dev);
 589         if (ret)
 590                 return ret;
 591
 592         *fw_len = fw_entry->size;
 593         *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
 594
 595         if (*fw == NULL)
 596                 ret = -ENOMEM;
 597
 598         release_firmware(fw_entry);
 599
 600         return ret;
 601 }
 602
 603 #ifdef CONFIG_OF
 604 static const char *get_target_ver_dir(const struct ath6kl *ar)
 605 {
 606         switch (ar->version.target_ver) {
 607         case AR6003_HW_1_0_VERSION:
 608                 return "ath6k/AR6003/hw1.0";
 609         case AR6003_HW_2_0_VERSION:
 610                 return "ath6k/AR6003/hw2.0";
 611         case AR6003_HW_2_1_1_VERSION:
 612                 return "ath6k/AR6003/hw2.1.1";
 613         }
 614         ath6kl_warn("%s: unsupported target version 0x%x.\n", __func__,
 615                     ar->version.target_ver);
 616         return NULL;
 617 }
 618
 619 /*
 620  * Check the device tree for a board-id and use it to construct
 621  * the pathname to the firmware file.  Used (for now) to find a
 622  * fallback to the "bdata.bin" file--typically a symlink to the
 623  * appropriate board-specific file.
 624  */
 625 static bool check_device_tree(struct ath6kl *ar)
 626 {
 627         static const char *board_id_prop = "atheros,board-id";
 628         struct device_node *node;
 629         char board_filename[64];
 630         const char *board_id;
 631         int ret;
 632
 633         for_each_compatible_node(node, NULL, "atheros,ath6kl") {
 634                 board_id = of_get_property(node, board_id_prop, NULL);
 635                 if (board_id == NULL) {
 636                         ath6kl_warn("No \"%s\" property on %s node.\n",
 637                                     board_id_prop, node->name);
 638                         continue;
 639                 }
 640                 snprintf(board_filename, sizeof(board_filename),
 641                          "%s/bdata.%s.bin", get_target_ver_dir(ar), board_id);
 642
 643                 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
 644                                     &ar->fw_board_len);
 645                 if (ret) {
 646                         ath6kl_err("Failed to get DT board file %s: %d\n",
 647                                    board_filename, ret);
 648                         continue;
 649                 }
 650                 return true;
 651         }
 652         return false;
 653 }
 654 #else
 655 static bool check_device_tree(struct ath6kl *ar)
 656 {
 657         return false;
 658 }
 659 #endif /* CONFIG_OF */
 660
 661 static int ath6kl_fetch_board_file(struct ath6kl *ar)
 662 {
 663         const char *filename;
 664         int ret;
 665
 666         if (ar->fw_board != NULL)
 667                 return 0;
 668
 669         if (WARN_ON(ar->hw.fw_board == NULL))
 670                 return -EINVAL;
 671
 672         filename = ar->hw.fw_board;
 673
 674         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 675                             &ar->fw_board_len);
 676         if (ret == 0) {
 677                 /* managed to get proper board file */
 678                 return 0;
 679         }
 680
 681         if (check_device_tree(ar)) {
 682                 /* got board file from device tree */
 683                 return 0;
 684         }
 685
 686         /* there was no proper board file, try to use default instead */
 687         ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
 688                     filename, ret);
 689
 690         filename = ar->hw.fw_default_board;
 691
 692         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 693                             &ar->fw_board_len);
 694         if (ret) {
 695                 ath6kl_err("Failed to get default board file %s: %d\n",
 696                            filename, ret);
 697                 return ret;
 698         }
 699
 700         ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
 701         ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
 702
 703         return 0;
 704 }
 705
 706 static int ath6kl_fetch_otp_file(struct ath6kl *ar)
 707 {
 708         const char *filename;
 709         int ret;
 710
 711         if (ar->fw_otp != NULL)
 712                 return 0;
 713
 714         if (ar->hw.fw_otp == NULL) {
 715                 ath6kl_dbg(ATH6KL_DBG_BOOT,
 716                            "no OTP file configured for this hw\n");
 717                 return 0;
 718         }
 719
 720         filename = ar->hw.fw_otp;
 721
 722         ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
 723                             &ar->fw_otp_len);
 724         if (ret) {
 725                 ath6kl_err("Failed to get OTP file %s: %d\n",
 726                            filename, ret);
 727                 return ret;
 728         }
 729
 730         return 0;
 731 }
 732
 733 static int ath6kl_fetch_fw_file(struct ath6kl *ar)
 734 {
 735         const char *filename;
 736         int ret;
 737
 738         if (ar->fw != NULL)
 739                 return 0;
 740
 741         if (testmode) {
 742                 if (ar->hw.fw_tcmd == NULL) {
 743                         ath6kl_warn("testmode not supported\n");
 744                         return -EOPNOTSUPP;
 745                 }
 746
 747                 filename = ar->hw.fw_tcmd;
 748
 749                 set_bit(TESTMODE, &ar->flag);
 750
 751                 goto get_fw;
 752         }
 753
 754         if (WARN_ON(ar->hw.fw == NULL))
 755                 return -EINVAL;
 756
 757         filename = ar->hw.fw;
 758
 759 get_fw:
 760         ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 761         if (ret) {
 762                 ath6kl_err("Failed to get firmware file %s: %d\n",
 763                            filename, ret);
 764                 return ret;
 765         }
 766
 767         return 0;
 768 }
 769
 770 static int ath6kl_fetch_patch_file(struct ath6kl *ar)
 771 {
 772         const char *filename;
 773         int ret;
 774
 775         if (ar->fw_patch != NULL)
 776                 return 0;
 777
 778         if (ar->hw.fw_patch == NULL)
 779                 return 0;
 780
 781         filename = ar->hw.fw_patch;
 782
 783         ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
 784                             &ar->fw_patch_len);
 785         if (ret) {
 786                 ath6kl_err("Failed to get patch file %s: %d\n",
 787                            filename, ret);
 788                 return ret;
 789         }
 790
 791         return 0;
 792 }
 793
 794 static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
 795 {
 796         int ret;
 797
 798         ret = ath6kl_fetch_otp_file(ar);
 799         if (ret)
 800                 return ret;
 801
 802         ret = ath6kl_fetch_fw_file(ar);
 803         if (ret)
 804                 return ret;
 805
 806         ret = ath6kl_fetch_patch_file(ar);
 807         if (ret)
 808                 return ret;
 809
 810         return 0;
 811 }
 812
 813 static int ath6kl_fetch_fw_api2(struct ath6kl *ar)
 814 {
 815         size_t magic_len, len, ie_len;
 816         const struct firmware *fw;
 817         struct ath6kl_fw_ie *hdr;
 818         const char *filename;
 819         const u8 *data;
 820         int ret, ie_id, i, index, bit;
 821         __le32 *val;
 822
 823         if (ar->hw.fw_api2 == NULL)
 824                 return -EOPNOTSUPP;
 825
 826         filename = ar->hw.fw_api2;
 827
 828         ret = request_firmware(&fw, filename, ar->dev);
 829         if (ret)
 830                 return ret;
 831
 832         data = fw->data;
 833         len = fw->size;
 834
 835         /* magic also includes the null byte, check that as well */
 836         magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
 837
 838         if (len < magic_len) {
 839                 ret = -EINVAL;
 840                 goto out;
 841         }
 842
 843         if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
 844                 ret = -EINVAL;
 845                 goto out;
 846         }
 847
 848         len -= magic_len;
 849         data += magic_len;
 850
 851         /* loop elements */
 852         while (len > sizeof(struct ath6kl_fw_ie)) {
 853                 /* hdr is unaligned! */
 854                 hdr = (struct ath6kl_fw_ie *) data;
 855
 856                 ie_id = le32_to_cpup(&hdr->id);
 857                 ie_len = le32_to_cpup(&hdr->len);
 858
 859                 len -= sizeof(*hdr);
 860                 data += sizeof(*hdr);
 861
 862                 if (len < ie_len) {
 863                         ret = -EINVAL;
 864                         goto out;
 865                 }
 866
 867                 switch (ie_id) {
 868                 case ATH6KL_FW_IE_OTP_IMAGE:
 869                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
 870                                 ie_len);
 871
 872                         ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
 873
 874                         if (ar->fw_otp == NULL) {
 875                                 ret = -ENOMEM;
 876                                 goto out;
 877                         }
 878
 879                         ar->fw_otp_len = ie_len;
 880                         break;
 881                 case ATH6KL_FW_IE_FW_IMAGE:
 882                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
 883                                 ie_len);
 884
 885                         ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
 886
 887                         if (ar->fw == NULL) {
 888                                 ret = -ENOMEM;
 889                                 goto out;
 890                         }
 891
 892                         ar->fw_len = ie_len;
 893                         break;
 894                 case ATH6KL_FW_IE_PATCH_IMAGE:
 895                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
 896                                 ie_len);
 897
 898                         ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
 899
 900                         if (ar->fw_patch == NULL) {
 901                                 ret = -ENOMEM;
 902                                 goto out;
 903                         }
 904
 905                         ar->fw_patch_len = ie_len;
 906                         break;
 907                 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
 908                         val = (__le32 *) data;
 909                         ar->hw.reserved_ram_size = le32_to_cpup(val);
 910
 911                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 912                                    "found reserved ram size ie 0x%d\n",
 913                                    ar->hw.reserved_ram_size);
 914                         break;
 915                 case ATH6KL_FW_IE_CAPABILITIES:
 916                         if (ie_len < DIV_ROUND_UP(ATH6KL_FW_CAPABILITY_MAX, 8))
 917                                 break;
 918
 919                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 920                                    "found firmware capabilities ie (%zd B)\n",
 921                                    ie_len);
 922
 923                         for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
 924                                 index = i / 8;
 925                                 bit = i % 8;
 926
 927                                 if (data[index] & (1 << bit))
 928                                         __set_bit(i, ar->fw_capabilities);
 929                         }
 930
 931                         ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
 932                                         ar->fw_capabilities,
 933                                         sizeof(ar->fw_capabilities));
 934                         break;
 935                 case ATH6KL_FW_IE_PATCH_ADDR:
 936                         if (ie_len != sizeof(*val))
 937                                 break;
 938
 939                         val = (__le32 *) data;
 940                         ar->hw.dataset_patch_addr = le32_to_cpup(val);
 941
 942                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 943                                    "found patch address ie 0x%x\n",
 944                                    ar->hw.dataset_patch_addr);
 945                         break;
 946                 case ATH6KL_FW_IE_BOARD_ADDR:
 947                         if (ie_len != sizeof(*val))
 948                                 break;
 949
 950                         val = (__le32 *) data;
 951                         ar->hw.board_addr = le32_to_cpup(val);
 952
 953                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 954                                    "found board address ie 0x%x\n",
 955                                    ar->hw.board_addr);
 956                         break;
 957                 case ATH6KL_FW_IE_VIF_MAX:
 958                         if (ie_len != sizeof(*val))
 959                                 break;
 960
 961                         val = (__le32 *) data;
 962                         ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
 963                                             ATH6KL_VIF_MAX);
 964
 965                         if (ar->vif_max > 1 && !ar->p2p)
 966                                 ar->max_norm_iface = 2;
 967
 968                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 969                                    "found vif max ie %d\n", ar->vif_max);
 970                         break;
 971                 default:
 972                         ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
 973                                    le32_to_cpup(&hdr->id));
 974                         break;
 975                 }
 976
 977                 len -= ie_len;
 978                 data += ie_len;
 979         };
 980
 981         ret = 0;
 982 out:
 983         release_firmware(fw);
 984
 985         return ret;
 986 }
 987
 988 static int ath6kl_fetch_firmwares(struct ath6kl *ar)
 989 {
 990         int ret;
 991
 992         ret = ath6kl_fetch_board_file(ar);
 993         if (ret)
 994                 return ret;
 995
 996         ret = ath6kl_fetch_fw_api2(ar);
 997         if (ret == 0) {
 998                 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 2\n");
 999                 return 0;
1000         }
1001
1002         ret = ath6kl_fetch_fw_api1(ar);
1003         if (ret)
1004                 return ret;
1005
1006         ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 1\n");
1007
1008         return 0;
1009 }
1010
1011 static int ath6kl_upload_board_file(struct ath6kl *ar)
1012 {
1013         u32 board_address, board_ext_address, param;
1014         u32 board_data_size, board_ext_data_size;
1015         int ret;
1016
1017         if (WARN_ON(ar->fw_board == NULL))
1018                 return -ENOENT;
1019
1020         /*
1021          * Determine where in Target RAM to write Board Data.
1022          * For AR6004, host determine Target RAM address for
1023          * writing board data.
1024          */
1025         if (ar->hw.board_addr != 0) {
1026                 board_address = ar->hw.board_addr;
1027                 ath6kl_bmi_write(ar,
1028                                 ath6kl_get_hi_item_addr(ar,
1029                                 HI_ITEM(hi_board_data)),
1030                                 (u8 *) &board_address, 4);
1031         } else {
1032                 ath6kl_bmi_read(ar,
1033                                 ath6kl_get_hi_item_addr(ar,
1034                                 HI_ITEM(hi_board_data)),
1035                                 (u8 *) &board_address, 4);
1036         }
1037
1038         /* determine where in target ram to write extended board data */
1039         ath6kl_bmi_read(ar,
1040                         ath6kl_get_hi_item_addr(ar,
1041                         HI_ITEM(hi_board_ext_data)),
1042                         (u8 *) &board_ext_address, 4);
1043
1044         if (ar->target_type == TARGET_TYPE_AR6003 &&
1045             board_ext_address == 0) {
1046                 ath6kl_err("Failed to get board file target address.\n");
1047                 return -EINVAL;
1048         }
1049
1050         switch (ar->target_type) {
1051         case TARGET_TYPE_AR6003:
1052                 board_data_size = AR6003_BOARD_DATA_SZ;
1053                 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1054                 break;
1055         case TARGET_TYPE_AR6004:
1056                 board_data_size = AR6004_BOARD_DATA_SZ;
1057                 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1058                 break;
1059         default:
1060                 WARN_ON(1);
1061                 return -EINVAL;
1062                 break;
1063         }
1064
1065         if (board_ext_address &&
1066             ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1067
1068                 /* write extended board data */
1069                 ath6kl_dbg(ATH6KL_DBG_BOOT,
1070                            "writing extended board data to 0x%x (%d B)\n",
1071                            board_ext_address, board_ext_data_size);
1072
1073                 ret = ath6kl_bmi_write(ar, board_ext_address,
1074                                        ar->fw_board + board_data_size,
1075                                        board_ext_data_size);
1076                 if (ret) {
1077                         ath6kl_err("Failed to write extended board data: %d\n",
1078                                    ret);
1079                         return ret;
1080                 }
1081
1082                 /* record that extended board data is initialized */
1083                 param = (board_ext_data_size << 16) | 1;
1084
1085                 ath6kl_bmi_write(ar,
1086                                  ath6kl_get_hi_item_addr(ar,
1087                                  HI_ITEM(hi_board_ext_data_config)),
1088                                  (unsigned char *) &param, 4);
1089         }
1090
1091         if (ar->fw_board_len < board_data_size) {
1092                 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1093                 ret = -EINVAL;
1094                 return ret;
1095         }
1096
1097         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1098                    board_address, board_data_size);
1099
1100         ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1101                                board_data_size);
1102
1103         if (ret) {
1104                 ath6kl_err("Board file bmi write failed: %d\n", ret);
1105                 return ret;
1106         }
1107
1108         /* record the fact that Board Data IS initialized */
1109         param = 1;
1110         ath6kl_bmi_write(ar,
1111                          ath6kl_get_hi_item_addr(ar,
1112                          HI_ITEM(hi_board_data_initialized)),
1113                          (u8 *)&param, 4);
1114
1115         return ret;
1116 }
1117
1118 static int ath6kl_upload_otp(struct ath6kl *ar)
1119 {
1120         u32 address, param;
1121         bool from_hw = false;
1122         int ret;
1123
1124         if (ar->fw_otp == NULL)
1125                 return 0;
1126
1127         address = ar->hw.app_load_addr;
1128
1129         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1130                    ar->fw_otp_len);
1131
1132         ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1133                                        ar->fw_otp_len);
1134         if (ret) {
1135                 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1136                 return ret;
1137         }
1138
1139         /* read firmware start address */
1140         ret = ath6kl_bmi_read(ar,
1141                               ath6kl_get_hi_item_addr(ar,
1142                                                       HI_ITEM(hi_app_start)),
1143                               (u8 *) &address, sizeof(address));
1144
1145         if (ret) {
1146                 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1147                 return ret;
1148         }
1149
1150         if (ar->hw.app_start_override_addr == 0) {
1151                 ar->hw.app_start_override_addr = address;
1152                 from_hw = true;
1153         }
1154
1155         ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1156                    from_hw ? " (from hw)" : "",
1157                    ar->hw.app_start_override_addr);
1158
1159         /* execute the OTP code */
1160         ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1161                    ar->hw.app_start_override_addr);
1162         param = 0;
1163         ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1164
1165         return ret;
1166 }
1167
1168 static int ath6kl_upload_firmware(struct ath6kl *ar)
1169 {
1170         u32 address;
1171         int ret;
1172
1173         if (WARN_ON(ar->fw == NULL))
1174                 return 0;
1175
1176         address = ar->hw.app_load_addr;
1177
1178         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1179                    address, ar->fw_len);
1180
1181         ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1182
1183         if (ret) {
1184                 ath6kl_err("Failed to write firmware: %d\n", ret);
1185                 return ret;
1186         }
1187
1188         /*
1189          * Set starting address for firmware
1190          * Don't need to setup app_start override addr on AR6004
1191          */
1192         if (ar->target_type != TARGET_TYPE_AR6004) {
1193                 address = ar->hw.app_start_override_addr;
1194                 ath6kl_bmi_set_app_start(ar, address);
1195         }
1196         return ret;
1197 }
1198
1199 static int ath6kl_upload_patch(struct ath6kl *ar)
1200 {
1201         u32 address, param;
1202         int ret;
1203
1204         if (ar->fw_patch == NULL)
1205                 return 0;
1206
1207         address = ar->hw.dataset_patch_addr;
1208
1209         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1210                    address, ar->fw_patch_len);
1211
1212         ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1213         if (ret) {
1214                 ath6kl_err("Failed to write patch file: %d\n", ret);
1215                 return ret;
1216         }
1217
1218         param = address;
1219         ath6kl_bmi_write(ar,
1220                          ath6kl_get_hi_item_addr(ar,
1221                          HI_ITEM(hi_dset_list_head)),
1222                          (unsigned char *) &param, 4);
1223
1224         return 0;
1225 }
1226
1227 static int ath6kl_init_upload(struct ath6kl *ar)
1228 {
1229         u32 param, options, sleep, address;
1230         int status = 0;
1231
1232         if (ar->target_type != TARGET_TYPE_AR6003 &&
1233                 ar->target_type != TARGET_TYPE_AR6004)
1234                 return -EINVAL;
1235
1236         /* temporarily disable system sleep */
1237         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1238         status = ath6kl_bmi_reg_read(ar, address, &param);
1239         if (status)
1240                 return status;
1241
1242         options = param;
1243
1244         param |= ATH6KL_OPTION_SLEEP_DISABLE;
1245         status = ath6kl_bmi_reg_write(ar, address, param);
1246         if (status)
1247                 return status;
1248
1249         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1250         status = ath6kl_bmi_reg_read(ar, address, &param);
1251         if (status)
1252                 return status;
1253
1254         sleep = param;
1255
1256         param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1257         status = ath6kl_bmi_reg_write(ar, address, param);
1258         if (status)
1259                 return status;
1260
1261         ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1262                    options, sleep);
1263
1264         /* program analog PLL register */
1265         /* no need to control 40/44MHz clock on AR6004 */
1266         if (ar->target_type != TARGET_TYPE_AR6004) {
1267                 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1268                                               0xF9104001);
1269
1270                 if (status)
1271                         return status;
1272
1273                 /* Run at 80/88MHz by default */
1274                 param = SM(CPU_CLOCK_STANDARD, 1);
1275
1276                 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1277                 status = ath6kl_bmi_reg_write(ar, address, param);
1278                 if (status)
1279                         return status;
1280         }
1281
1282         param = 0;
1283         address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1284         param = SM(LPO_CAL_ENABLE, 1);
1285         status = ath6kl_bmi_reg_write(ar, address, param);
1286         if (status)
1287                 return status;
1288
1289         /* WAR to avoid SDIO CRC err */
1290         if (ar->version.target_ver == AR6003_HW_2_0_VERSION) {
1291                 ath6kl_err("temporary war to avoid sdio crc error\n");
1292
1293                 param = 0x20;
1294
1295                 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1296                 status = ath6kl_bmi_reg_write(ar, address, param);
1297                 if (status)
1298                         return status;
1299
1300                 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1301                 status = ath6kl_bmi_reg_write(ar, address, param);
1302                 if (status)
1303                         return status;
1304
1305                 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1306                 status = ath6kl_bmi_reg_write(ar, address, param);
1307                 if (status)
1308                         return status;
1309
1310                 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1311                 status = ath6kl_bmi_reg_write(ar, address, param);
1312                 if (status)
1313                         return status;
1314         }
1315
1316         /* write EEPROM data to Target RAM */
1317         status = ath6kl_upload_board_file(ar);
1318         if (status)
1319                 return status;
1320
1321         /* transfer One time Programmable data */
1322         status = ath6kl_upload_otp(ar);
1323         if (status)
1324                 return status;
1325
1326         /* Download Target firmware */
1327         status = ath6kl_upload_firmware(ar);
1328         if (status)
1329                 return status;
1330
1331         status = ath6kl_upload_patch(ar);
1332         if (status)
1333                 return status;
1334
1335         /* Restore system sleep */
1336         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1337         status = ath6kl_bmi_reg_write(ar, address, sleep);
1338         if (status)
1339                 return status;
1340
1341         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1342         param = options | 0x20;
1343         status = ath6kl_bmi_reg_write(ar, address, param);
1344         if (status)
1345                 return status;
1346
1347         /* Configure GPIO AR6003 UART */
1348         param = CONFIG_AR600x_DEBUG_UART_TX_PIN;
1349         status = ath6kl_bmi_write(ar,
1350                                   ath6kl_get_hi_item_addr(ar,
1351                                   HI_ITEM(hi_dbg_uart_txpin)),
1352                                   (u8 *)&param, 4);
1353
1354         return status;
1355 }
1356
1357 static int ath6kl_init_hw_params(struct ath6kl *ar)
1358 {
1359         const struct ath6kl_hw *hw;
1360         int i;
1361
1362         for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1363                 hw = &hw_list[i];
1364
1365                 if (hw->id == ar->version.target_ver)
1366                         break;
1367         }
1368
1369         if (i == ARRAY_SIZE(hw_list)) {
1370                 ath6kl_err("Unsupported hardware version: 0x%x\n",
1371                            ar->version.target_ver);
1372                 return -EINVAL;
1373         }
1374
1375         ar->hw = *hw;
1376
1377         ath6kl_dbg(ATH6KL_DBG_BOOT,
1378                    "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1379                    ar->version.target_ver, ar->target_type,
1380                    ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1381         ath6kl_dbg(ATH6KL_DBG_BOOT,
1382                    "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1383                    ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1384                    ar->hw.reserved_ram_size);
1385
1386         return 0;
1387 }
1388
1389 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1390 {
1391         switch (type) {
1392         case ATH6KL_HIF_TYPE_SDIO:
1393                 return "sdio";
1394         case ATH6KL_HIF_TYPE_USB:
1395                 return "usb";
1396         }
1397
1398         return NULL;
1399 }
1400
1401 int ath6kl_init_hw_start(struct ath6kl *ar)
1402 {
1403         long timeleft;
1404         int ret, i;
1405
1406         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1407
1408         ret = ath6kl_hif_power_on(ar);
1409         if (ret)
1410                 return ret;
1411
1412         ret = ath6kl_configure_target(ar);
1413         if (ret)
1414                 goto err_power_off;
1415
1416         ret = ath6kl_init_upload(ar);
1417         if (ret)
1418                 goto err_power_off;
1419
1420         /* Do we need to finish the BMI phase */
1421         /* FIXME: return error from ath6kl_bmi_done() */
1422         if (ath6kl_bmi_done(ar)) {
1423                 ret = -EIO;
1424                 goto err_power_off;
1425         }
1426
1427         /*
1428          * The reason we have to wait for the target here is that the
1429          * driver layer has to init BMI in order to set the host block
1430          * size.
1431          */
1432         if (ath6kl_htc_wait_target(ar->htc_target)) {
1433                 ret = -EIO;
1434                 goto err_power_off;
1435         }
1436
1437         if (ath6kl_init_service_ep(ar)) {
1438                 ret = -EIO;
1439                 goto err_cleanup_scatter;
1440         }
1441
1442         /* setup credit distribution */
1443         ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
1444
1445         /* start HTC */
1446         ret = ath6kl_htc_start(ar->htc_target);
1447         if (ret) {
1448                 /* FIXME: call this */
1449                 ath6kl_cookie_cleanup(ar);
1450                 goto err_cleanup_scatter;
1451         }
1452
1453         /* Wait for Wmi event to be ready */
1454         timeleft = wait_event_interruptible_timeout(ar->event_wq,
1455                                                     test_bit(WMI_READY,
1456                                                              &ar->flag),
1457                                                     WMI_TIMEOUT);
1458
1459         ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1460
1461
1462         if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1463                 ath6kl_info("%s %s fw %s%s\n",
1464                             ar->hw.name,
1465                             ath6kl_init_get_hif_name(ar->hif_type),
1466                             ar->wiphy->fw_version,
1467                             test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1468         }
1469
1470         if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1471                 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1472                            ATH6KL_ABI_VERSION, ar->version.abi_ver);
1473                 ret = -EIO;
1474                 goto err_htc_stop;
1475         }
1476
1477         if (!timeleft || signal_pending(current)) {
1478                 ath6kl_err("wmi is not ready or wait was interrupted\n");
1479                 ret = -EIO;
1480                 goto err_htc_stop;
1481         }
1482
1483         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1484
1485         /* communicate the wmi protocol verision to the target */
1486         /* FIXME: return error */
1487         if ((ath6kl_set_host_app_area(ar)) != 0)
1488                 ath6kl_err("unable to set the host app area\n");
1489
1490         for (i = 0; i < ar->vif_max; i++) {
1491                 ret = ath6kl_target_config_wlan_params(ar, i);
1492                 if (ret)
1493                         goto err_htc_stop;
1494         }
1495
1496         ar->state = ATH6KL_STATE_ON;
1497
1498         return 0;
1499
1500 err_htc_stop:
1501         ath6kl_htc_stop(ar->htc_target);
1502 err_cleanup_scatter:
1503         ath6kl_hif_cleanup_scatter(ar);
1504 err_power_off:
1505         ath6kl_hif_power_off(ar);
1506
1507         return ret;
1508 }
1509
1510 int ath6kl_init_hw_stop(struct ath6kl *ar)
1511 {
1512         int ret;
1513
1514         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1515
1516         ath6kl_htc_stop(ar->htc_target);
1517
1518         ath6kl_hif_stop(ar);
1519
1520         ath6kl_bmi_reset(ar);
1521
1522         ret = ath6kl_hif_power_off(ar);
1523         if (ret)
1524                 ath6kl_warn("failed to power off hif: %d\n", ret);
1525
1526         ar->state = ATH6KL_STATE_OFF;
1527
1528         return 0;
1529 }
1530
1531 int ath6kl_core_init(struct ath6kl *ar)
1532 {
1533         struct ath6kl_bmi_target_info targ_info;
1534         struct net_device *ndev;
1535         int ret = 0, i;
1536
1537         ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1538         if (!ar->ath6kl_wq)
1539                 return -ENOMEM;
1540
1541         ret = ath6kl_bmi_init(ar);
1542         if (ret)
1543                 goto err_wq;
1544
1545         /*
1546          * Turn on power to get hardware (target) version and leave power
1547          * on delibrately as we will boot the hardware anyway within few
1548          * seconds.
1549          */
1550         ret = ath6kl_hif_power_on(ar);
1551         if (ret)
1552                 goto err_bmi_cleanup;
1553
1554         ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1555         if (ret)
1556                 goto err_power_off;
1557
1558         ar->version.target_ver = le32_to_cpu(targ_info.version);
1559         ar->target_type = le32_to_cpu(targ_info.type);
1560         ar->wiphy->hw_version = le32_to_cpu(targ_info.version);
1561
1562         ret = ath6kl_init_hw_params(ar);
1563         if (ret)
1564                 goto err_power_off;
1565
1566         ar->htc_target = ath6kl_htc_create(ar);
1567
1568         if (!ar->htc_target) {
1569                 ret = -ENOMEM;
1570                 goto err_power_off;
1571         }
1572
1573         ret = ath6kl_fetch_firmwares(ar);
1574         if (ret)
1575                 goto err_htc_cleanup;
1576
1577         /* FIXME: we should free all firmwares in the error cases below */
1578
1579         /* Indicate that WMI is enabled (although not ready yet) */
1580         set_bit(WMI_ENABLED, &ar->flag);
1581         ar->wmi = ath6kl_wmi_init(ar);
1582         if (!ar->wmi) {
1583                 ath6kl_err("failed to initialize wmi\n");
1584                 ret = -EIO;
1585                 goto err_htc_cleanup;
1586         }
1587
1588         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1589
1590         ret = ath6kl_register_ieee80211_hw(ar);
1591         if (ret)
1592                 goto err_node_cleanup;
1593
1594         ret = ath6kl_debug_init(ar);
1595         if (ret) {
1596                 wiphy_unregister(ar->wiphy);
1597                 goto err_node_cleanup;
1598         }
1599
1600         for (i = 0; i < ar->vif_max; i++)
1601                 ar->avail_idx_map |= BIT(i);
1602
1603         rtnl_lock();
1604
1605         /* Add an initial station interface */
1606         ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0,
1607                                     INFRA_NETWORK);
1608
1609         rtnl_unlock();
1610
1611         if (!ndev) {
1612                 ath6kl_err("Failed to instantiate a network device\n");
1613                 ret = -ENOMEM;
1614                 wiphy_unregister(ar->wiphy);
1615                 goto err_debug_init;
1616         }
1617
1618
1619         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1620                         __func__, ndev->name, ndev, ar);
1621
1622         /* setup access class priority mappings */
1623         ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest  */
1624         ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1625         ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1626         ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1627
1628         /* give our connected endpoints some buffers */
1629         ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1630         ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1631
1632         /* allocate some buffers that handle larger AMSDU frames */
1633         ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1634
1635         ath6kl_cookie_init(ar);
1636
1637         ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1638                          ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1639
1640         if (suspend_cutpower)
1641                 ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER;
1642
1643         ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
1644                             WIPHY_FLAG_HAVE_AP_SME |
1645                             WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1646
1647         ar->wiphy->probe_resp_offload =
1648                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1649                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1650                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P |
1651                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U;
1652
1653         set_bit(FIRST_BOOT, &ar->flag);
1654
1655         ret = ath6kl_init_hw_start(ar);
1656         if (ret) {
1657                 ath6kl_err("Failed to start hardware: %d\n", ret);
1658                 goto err_rxbuf_cleanup;
1659         }
1660
1661         /*
1662          * Set mac address which is received in ready event
1663          * FIXME: Move to ath6kl_interface_add()
1664          */
1665         memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
1666
1667         return ret;
1668
1669 err_rxbuf_cleanup:
1670         ath6kl_htc_flush_rx_buf(ar->htc_target);
1671         ath6kl_cleanup_amsdu_rxbufs(ar);
1672         rtnl_lock();
1673         ath6kl_deinit_if_data(netdev_priv(ndev));
1674         rtnl_unlock();
1675         wiphy_unregister(ar->wiphy);
1676 err_debug_init:
1677         ath6kl_debug_cleanup(ar);
1678 err_node_cleanup:
1679         ath6kl_wmi_shutdown(ar->wmi);
1680         clear_bit(WMI_ENABLED, &ar->flag);
1681         ar->wmi = NULL;
1682 err_htc_cleanup:
1683         ath6kl_htc_cleanup(ar->htc_target);
1684 err_power_off:
1685         ath6kl_hif_power_off(ar);
1686 err_bmi_cleanup:
1687         ath6kl_bmi_cleanup(ar);
1688 err_wq:
1689         destroy_workqueue(ar->ath6kl_wq);
1690
1691         return ret;
1692 }
1693
1694 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1695 {
1696         static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1697         bool discon_issued;
1698
1699         netif_stop_queue(vif->ndev);
1700
1701         clear_bit(WLAN_ENABLED, &vif->flags);
1702
1703         if (wmi_ready) {
1704                 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1705                                 test_bit(CONNECT_PEND, &vif->flags);
1706                 ath6kl_disconnect(vif);
1707                 del_timer(&vif->disconnect_timer);
1708
1709                 if (discon_issued)
1710                         ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1711                                                 (vif->nw_type & AP_NETWORK) ?
1712                                                 bcast_mac : vif->bssid,
1713                                                 0, NULL, 0);
1714         }
1715
1716         if (vif->scan_req) {
1717                 cfg80211_scan_done(vif->scan_req, true);
1718                 vif->scan_req = NULL;
1719         }
1720 }
1721
1722 void ath6kl_stop_txrx(struct ath6kl *ar)
1723 {
1724         struct ath6kl_vif *vif, *tmp_vif;
1725
1726         set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1727
1728         if (down_interruptible(&ar->sem)) {
1729                 ath6kl_err("down_interruptible failed\n");
1730                 return;
1731         }
1732
1733         spin_lock_bh(&ar->list_lock);
1734         list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1735                 list_del(&vif->list);
1736                 spin_unlock_bh(&ar->list_lock);
1737                 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1738                 rtnl_lock();
1739                 ath6kl_deinit_if_data(vif);
1740                 rtnl_unlock();
1741                 spin_lock_bh(&ar->list_lock);
1742         }
1743         spin_unlock_bh(&ar->list_lock);
1744
1745         clear_bit(WMI_READY, &ar->flag);
1746
1747         /*
1748          * After wmi_shudown all WMI events will be dropped. We
1749          * need to cleanup the buffers allocated in AP mode and
1750          * give disconnect notification to stack, which usually
1751          * happens in the disconnect_event. Simulate the disconnect
1752          * event by calling the function directly. Sometimes
1753          * disconnect_event will be received when the debug logs
1754          * are collected.
1755          */
1756         ath6kl_wmi_shutdown(ar->wmi);
1757
1758         clear_bit(WMI_ENABLED, &ar->flag);
1759         if (ar->htc_target) {
1760                 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1761                 ath6kl_htc_stop(ar->htc_target);
1762         }
1763
1764         /*
1765          * Try to reset the device if we can. The driver may have been
1766          * configure NOT to reset the target during a debug session.
1767          */
1768         ath6kl_dbg(ATH6KL_DBG_TRC,
1769                         "attempting to reset target on instance destroy\n");
1770         ath6kl_reset_device(ar, ar->target_type, true, true);
1771
1772         clear_bit(WLAN_ENABLED, &ar->flag);
1773 }