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                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 917                                    "found firmware capabilities ie (%zd B)\n",
 918                                    ie_len);
 919
 920                         for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
 921                                 index = ALIGN(i, 8) / 8;
 922                                 bit = i % 8;
 923
 924                                 if (data[index] & (1 << bit))
 925                                         __set_bit(i, ar->fw_capabilities);
 926                         }
 927
 928                         ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
 929                                         ar->fw_capabilities,
 930                                         sizeof(ar->fw_capabilities));
 931                         break;
 932                 case ATH6KL_FW_IE_PATCH_ADDR:
 933                         if (ie_len != sizeof(*val))
 934                                 break;
 935
 936                         val = (__le32 *) data;
 937                         ar->hw.dataset_patch_addr = le32_to_cpup(val);
 938
 939                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 940                                    "found patch address ie 0x%x\n",
 941                                    ar->hw.dataset_patch_addr);
 942                         break;
 943                 case ATH6KL_FW_IE_BOARD_ADDR:
 944                         if (ie_len != sizeof(*val))
 945                                 break;
 946
 947                         val = (__le32 *) data;
 948                         ar->hw.board_addr = le32_to_cpup(val);
 949
 950                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 951                                    "found board address ie 0x%x\n",
 952                                    ar->hw.board_addr);
 953                         break;
 954                 case ATH6KL_FW_IE_VIF_MAX:
 955                         if (ie_len != sizeof(*val))
 956                                 break;
 957
 958                         val = (__le32 *) data;
 959                         ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
 960                                             ATH6KL_VIF_MAX);
 961
 962                         if (ar->vif_max > 1 && !ar->p2p)
 963                                 ar->max_norm_iface = 2;
 964
 965                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 966                                    "found vif max ie %d\n", ar->vif_max);
 967                         break;
 968                 default:
 969                         ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
 970                                    le32_to_cpup(&hdr->id));
 971                         break;
 972                 }
 973
 974                 len -= ie_len;
 975                 data += ie_len;
 976         };
 977
 978         ret = 0;
 979 out:
 980         release_firmware(fw);
 981
 982         return ret;
 983 }
 984
 985 static int ath6kl_fetch_firmwares(struct ath6kl *ar)
 986 {
 987         int ret;
 988
 989         ret = ath6kl_fetch_board_file(ar);
 990         if (ret)
 991                 return ret;
 992
 993         ret = ath6kl_fetch_fw_api2(ar);
 994         if (ret == 0) {
 995                 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 2\n");
 996                 return 0;
 997         }
 998
 999         ret = ath6kl_fetch_fw_api1(ar);
1000         if (ret)
1001                 return ret;
1002
1003         ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 1\n");
1004
1005         return 0;
1006 }
1007
1008 static int ath6kl_upload_board_file(struct ath6kl *ar)
1009 {
1010         u32 board_address, board_ext_address, param;
1011         u32 board_data_size, board_ext_data_size;
1012         int ret;
1013
1014         if (WARN_ON(ar->fw_board == NULL))
1015                 return -ENOENT;
1016
1017         /*
1018          * Determine where in Target RAM to write Board Data.
1019          * For AR6004, host determine Target RAM address for
1020          * writing board data.
1021          */
1022         if (ar->hw.board_addr != 0) {
1023                 board_address = ar->hw.board_addr;
1024                 ath6kl_bmi_write(ar,
1025                                 ath6kl_get_hi_item_addr(ar,
1026                                 HI_ITEM(hi_board_data)),
1027                                 (u8 *) &board_address, 4);
1028         } else {
1029                 ath6kl_bmi_read(ar,
1030                                 ath6kl_get_hi_item_addr(ar,
1031                                 HI_ITEM(hi_board_data)),
1032                                 (u8 *) &board_address, 4);
1033         }
1034
1035         /* determine where in target ram to write extended board data */
1036         ath6kl_bmi_read(ar,
1037                         ath6kl_get_hi_item_addr(ar,
1038                         HI_ITEM(hi_board_ext_data)),
1039                         (u8 *) &board_ext_address, 4);
1040
1041         if (ar->target_type == TARGET_TYPE_AR6003 &&
1042             board_ext_address == 0) {
1043                 ath6kl_err("Failed to get board file target address.\n");
1044                 return -EINVAL;
1045         }
1046
1047         switch (ar->target_type) {
1048         case TARGET_TYPE_AR6003:
1049                 board_data_size = AR6003_BOARD_DATA_SZ;
1050                 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1051                 break;
1052         case TARGET_TYPE_AR6004:
1053                 board_data_size = AR6004_BOARD_DATA_SZ;
1054                 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1055                 break;
1056         default:
1057                 WARN_ON(1);
1058                 return -EINVAL;
1059                 break;
1060         }
1061
1062         if (board_ext_address &&
1063             ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1064
1065                 /* write extended board data */
1066                 ath6kl_dbg(ATH6KL_DBG_BOOT,
1067                            "writing extended board data to 0x%x (%d B)\n",
1068                            board_ext_address, board_ext_data_size);
1069
1070                 ret = ath6kl_bmi_write(ar, board_ext_address,
1071                                        ar->fw_board + board_data_size,
1072                                        board_ext_data_size);
1073                 if (ret) {
1074                         ath6kl_err("Failed to write extended board data: %d\n",
1075                                    ret);
1076                         return ret;
1077                 }
1078
1079                 /* record that extended board data is initialized */
1080                 param = (board_ext_data_size << 16) | 1;
1081
1082                 ath6kl_bmi_write(ar,
1083                                  ath6kl_get_hi_item_addr(ar,
1084                                  HI_ITEM(hi_board_ext_data_config)),
1085                                  (unsigned char *) &param, 4);
1086         }
1087
1088         if (ar->fw_board_len < board_data_size) {
1089                 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1090                 ret = -EINVAL;
1091                 return ret;
1092         }
1093
1094         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1095                    board_address, board_data_size);
1096
1097         ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1098                                board_data_size);
1099
1100         if (ret) {
1101                 ath6kl_err("Board file bmi write failed: %d\n", ret);
1102                 return ret;
1103         }
1104
1105         /* record the fact that Board Data IS initialized */
1106         param = 1;
1107         ath6kl_bmi_write(ar,
1108                          ath6kl_get_hi_item_addr(ar,
1109                          HI_ITEM(hi_board_data_initialized)),
1110                          (u8 *)&param, 4);
1111
1112         return ret;
1113 }
1114
1115 static int ath6kl_upload_otp(struct ath6kl *ar)
1116 {
1117         u32 address, param;
1118         bool from_hw = false;
1119         int ret;
1120
1121         if (ar->fw_otp == NULL)
1122                 return 0;
1123
1124         address = ar->hw.app_load_addr;
1125
1126         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1127                    ar->fw_otp_len);
1128
1129         ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1130                                        ar->fw_otp_len);
1131         if (ret) {
1132                 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1133                 return ret;
1134         }
1135
1136         /* read firmware start address */
1137         ret = ath6kl_bmi_read(ar,
1138                               ath6kl_get_hi_item_addr(ar,
1139                                                       HI_ITEM(hi_app_start)),
1140                               (u8 *) &address, sizeof(address));
1141
1142         if (ret) {
1143                 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1144                 return ret;
1145         }
1146
1147         if (ar->hw.app_start_override_addr == 0) {
1148                 ar->hw.app_start_override_addr = address;
1149                 from_hw = true;
1150         }
1151
1152         ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1153                    from_hw ? " (from hw)" : "",
1154                    ar->hw.app_start_override_addr);
1155
1156         /* execute the OTP code */
1157         ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1158                    ar->hw.app_start_override_addr);
1159         param = 0;
1160         ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1161
1162         return ret;
1163 }
1164
1165 static int ath6kl_upload_firmware(struct ath6kl *ar)
1166 {
1167         u32 address;
1168         int ret;
1169
1170         if (WARN_ON(ar->fw == NULL))
1171                 return 0;
1172
1173         address = ar->hw.app_load_addr;
1174
1175         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1176                    address, ar->fw_len);
1177
1178         ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1179
1180         if (ret) {
1181                 ath6kl_err("Failed to write firmware: %d\n", ret);
1182                 return ret;
1183         }
1184
1185         /*
1186          * Set starting address for firmware
1187          * Don't need to setup app_start override addr on AR6004
1188          */
1189         if (ar->target_type != TARGET_TYPE_AR6004) {
1190                 address = ar->hw.app_start_override_addr;
1191                 ath6kl_bmi_set_app_start(ar, address);
1192         }
1193         return ret;
1194 }
1195
1196 static int ath6kl_upload_patch(struct ath6kl *ar)
1197 {
1198         u32 address, param;
1199         int ret;
1200
1201         if (ar->fw_patch == NULL)
1202                 return 0;
1203
1204         address = ar->hw.dataset_patch_addr;
1205
1206         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1207                    address, ar->fw_patch_len);
1208
1209         ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1210         if (ret) {
1211                 ath6kl_err("Failed to write patch file: %d\n", ret);
1212                 return ret;
1213         }
1214
1215         param = address;
1216         ath6kl_bmi_write(ar,
1217                          ath6kl_get_hi_item_addr(ar,
1218                          HI_ITEM(hi_dset_list_head)),
1219                          (unsigned char *) &param, 4);
1220
1221         return 0;
1222 }
1223
1224 static int ath6kl_init_upload(struct ath6kl *ar)
1225 {
1226         u32 param, options, sleep, address;
1227         int status = 0;
1228
1229         if (ar->target_type != TARGET_TYPE_AR6003 &&
1230                 ar->target_type != TARGET_TYPE_AR6004)
1231                 return -EINVAL;
1232
1233         /* temporarily disable system sleep */
1234         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1235         status = ath6kl_bmi_reg_read(ar, address, &param);
1236         if (status)
1237                 return status;
1238
1239         options = param;
1240
1241         param |= ATH6KL_OPTION_SLEEP_DISABLE;
1242         status = ath6kl_bmi_reg_write(ar, address, param);
1243         if (status)
1244                 return status;
1245
1246         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1247         status = ath6kl_bmi_reg_read(ar, address, &param);
1248         if (status)
1249                 return status;
1250
1251         sleep = param;
1252
1253         param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1254         status = ath6kl_bmi_reg_write(ar, address, param);
1255         if (status)
1256                 return status;
1257
1258         ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1259                    options, sleep);
1260
1261         /* program analog PLL register */
1262         /* no need to control 40/44MHz clock on AR6004 */
1263         if (ar->target_type != TARGET_TYPE_AR6004) {
1264                 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1265                                               0xF9104001);
1266
1267                 if (status)
1268                         return status;
1269
1270                 /* Run at 80/88MHz by default */
1271                 param = SM(CPU_CLOCK_STANDARD, 1);
1272
1273                 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1274                 status = ath6kl_bmi_reg_write(ar, address, param);
1275                 if (status)
1276                         return status;
1277         }
1278
1279         param = 0;
1280         address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1281         param = SM(LPO_CAL_ENABLE, 1);
1282         status = ath6kl_bmi_reg_write(ar, address, param);
1283         if (status)
1284                 return status;
1285
1286         /* WAR to avoid SDIO CRC err */
1287         if (ar->version.target_ver == AR6003_HW_2_0_VERSION) {
1288                 ath6kl_err("temporary war to avoid sdio crc error\n");
1289
1290                 param = 0x20;
1291
1292                 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1293                 status = ath6kl_bmi_reg_write(ar, address, param);
1294                 if (status)
1295                         return status;
1296
1297                 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1298                 status = ath6kl_bmi_reg_write(ar, address, param);
1299                 if (status)
1300                         return status;
1301
1302                 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1303                 status = ath6kl_bmi_reg_write(ar, address, param);
1304                 if (status)
1305                         return status;
1306
1307                 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1308                 status = ath6kl_bmi_reg_write(ar, address, param);
1309                 if (status)
1310                         return status;
1311         }
1312
1313         /* write EEPROM data to Target RAM */
1314         status = ath6kl_upload_board_file(ar);
1315         if (status)
1316                 return status;
1317
1318         /* transfer One time Programmable data */
1319         status = ath6kl_upload_otp(ar);
1320         if (status)
1321                 return status;
1322
1323         /* Download Target firmware */
1324         status = ath6kl_upload_firmware(ar);
1325         if (status)
1326                 return status;
1327
1328         status = ath6kl_upload_patch(ar);
1329         if (status)
1330                 return status;
1331
1332         /* Restore system sleep */
1333         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1334         status = ath6kl_bmi_reg_write(ar, address, sleep);
1335         if (status)
1336                 return status;
1337
1338         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1339         param = options | 0x20;
1340         status = ath6kl_bmi_reg_write(ar, address, param);
1341         if (status)
1342                 return status;
1343
1344         /* Configure GPIO AR6003 UART */
1345         param = CONFIG_AR600x_DEBUG_UART_TX_PIN;
1346         status = ath6kl_bmi_write(ar,
1347                                   ath6kl_get_hi_item_addr(ar,
1348                                   HI_ITEM(hi_dbg_uart_txpin)),
1349                                   (u8 *)&param, 4);
1350
1351         return status;
1352 }
1353
1354 static int ath6kl_init_hw_params(struct ath6kl *ar)
1355 {
1356         const struct ath6kl_hw *hw;
1357         int i;
1358
1359         for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1360                 hw = &hw_list[i];
1361
1362                 if (hw->id == ar->version.target_ver)
1363                         break;
1364         }
1365
1366         if (i == ARRAY_SIZE(hw_list)) {
1367                 ath6kl_err("Unsupported hardware version: 0x%x\n",
1368                            ar->version.target_ver);
1369                 return -EINVAL;
1370         }
1371
1372         ar->hw = *hw;
1373
1374         ath6kl_dbg(ATH6KL_DBG_BOOT,
1375                    "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1376                    ar->version.target_ver, ar->target_type,
1377                    ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1378         ath6kl_dbg(ATH6KL_DBG_BOOT,
1379                    "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1380                    ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1381                    ar->hw.reserved_ram_size);
1382
1383         return 0;
1384 }
1385
1386 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1387 {
1388         switch (type) {
1389         case ATH6KL_HIF_TYPE_SDIO:
1390                 return "sdio";
1391         case ATH6KL_HIF_TYPE_USB:
1392                 return "usb";
1393         }
1394
1395         return NULL;
1396 }
1397
1398 int ath6kl_init_hw_start(struct ath6kl *ar)
1399 {
1400         long timeleft;
1401         int ret, i;
1402
1403         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1404
1405         ret = ath6kl_hif_power_on(ar);
1406         if (ret)
1407                 return ret;
1408
1409         ret = ath6kl_configure_target(ar);
1410         if (ret)
1411                 goto err_power_off;
1412
1413         ret = ath6kl_init_upload(ar);
1414         if (ret)
1415                 goto err_power_off;
1416
1417         /* Do we need to finish the BMI phase */
1418         /* FIXME: return error from ath6kl_bmi_done() */
1419         if (ath6kl_bmi_done(ar)) {
1420                 ret = -EIO;
1421                 goto err_power_off;
1422         }
1423
1424         /*
1425          * The reason we have to wait for the target here is that the
1426          * driver layer has to init BMI in order to set the host block
1427          * size.
1428          */
1429         if (ath6kl_htc_wait_target(ar->htc_target)) {
1430                 ret = -EIO;
1431                 goto err_power_off;
1432         }
1433
1434         if (ath6kl_init_service_ep(ar)) {
1435                 ret = -EIO;
1436                 goto err_cleanup_scatter;
1437         }
1438
1439         /* setup credit distribution */
1440         ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
1441
1442         /* start HTC */
1443         ret = ath6kl_htc_start(ar->htc_target);
1444         if (ret) {
1445                 /* FIXME: call this */
1446                 ath6kl_cookie_cleanup(ar);
1447                 goto err_cleanup_scatter;
1448         }
1449
1450         /* Wait for Wmi event to be ready */
1451         timeleft = wait_event_interruptible_timeout(ar->event_wq,
1452                                                     test_bit(WMI_READY,
1453                                                              &ar->flag),
1454                                                     WMI_TIMEOUT);
1455
1456         ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1457
1458
1459         if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1460                 ath6kl_info("%s %s fw %s%s\n",
1461                             ar->hw.name,
1462                             ath6kl_init_get_hif_name(ar->hif_type),
1463                             ar->wiphy->fw_version,
1464                             test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1465         }
1466
1467         if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1468                 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1469                            ATH6KL_ABI_VERSION, ar->version.abi_ver);
1470                 ret = -EIO;
1471                 goto err_htc_stop;
1472         }
1473
1474         if (!timeleft || signal_pending(current)) {
1475                 ath6kl_err("wmi is not ready or wait was interrupted\n");
1476                 ret = -EIO;
1477                 goto err_htc_stop;
1478         }
1479
1480         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1481
1482         /* communicate the wmi protocol verision to the target */
1483         /* FIXME: return error */
1484         if ((ath6kl_set_host_app_area(ar)) != 0)
1485                 ath6kl_err("unable to set the host app area\n");
1486
1487         for (i = 0; i < ar->vif_max; i++) {
1488                 ret = ath6kl_target_config_wlan_params(ar, i);
1489                 if (ret)
1490                         goto err_htc_stop;
1491         }
1492
1493         ar->state = ATH6KL_STATE_ON;
1494
1495         return 0;
1496
1497 err_htc_stop:
1498         ath6kl_htc_stop(ar->htc_target);
1499 err_cleanup_scatter:
1500         ath6kl_hif_cleanup_scatter(ar);
1501 err_power_off:
1502         ath6kl_hif_power_off(ar);
1503
1504         return ret;
1505 }
1506
1507 int ath6kl_init_hw_stop(struct ath6kl *ar)
1508 {
1509         int ret;
1510
1511         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1512
1513         ath6kl_htc_stop(ar->htc_target);
1514
1515         ath6kl_hif_stop(ar);
1516
1517         ath6kl_bmi_reset(ar);
1518
1519         ret = ath6kl_hif_power_off(ar);
1520         if (ret)
1521                 ath6kl_warn("failed to power off hif: %d\n", ret);
1522
1523         ar->state = ATH6KL_STATE_OFF;
1524
1525         return 0;
1526 }
1527
1528 int ath6kl_core_init(struct ath6kl *ar)
1529 {
1530         struct ath6kl_bmi_target_info targ_info;
1531         struct net_device *ndev;
1532         int ret = 0, i;
1533
1534         ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1535         if (!ar->ath6kl_wq)
1536                 return -ENOMEM;
1537
1538         ret = ath6kl_bmi_init(ar);
1539         if (ret)
1540                 goto err_wq;
1541
1542         /*
1543          * Turn on power to get hardware (target) version and leave power
1544          * on delibrately as we will boot the hardware anyway within few
1545          * seconds.
1546          */
1547         ret = ath6kl_hif_power_on(ar);
1548         if (ret)
1549                 goto err_bmi_cleanup;
1550
1551         ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1552         if (ret)
1553                 goto err_power_off;
1554
1555         ar->version.target_ver = le32_to_cpu(targ_info.version);
1556         ar->target_type = le32_to_cpu(targ_info.type);
1557         ar->wiphy->hw_version = le32_to_cpu(targ_info.version);
1558
1559         ret = ath6kl_init_hw_params(ar);
1560         if (ret)
1561                 goto err_power_off;
1562
1563         ar->htc_target = ath6kl_htc_create(ar);
1564
1565         if (!ar->htc_target) {
1566                 ret = -ENOMEM;
1567                 goto err_power_off;
1568         }
1569
1570         ret = ath6kl_fetch_firmwares(ar);
1571         if (ret)
1572                 goto err_htc_cleanup;
1573
1574         /* FIXME: we should free all firmwares in the error cases below */
1575
1576         /* Indicate that WMI is enabled (although not ready yet) */
1577         set_bit(WMI_ENABLED, &ar->flag);
1578         ar->wmi = ath6kl_wmi_init(ar);
1579         if (!ar->wmi) {
1580                 ath6kl_err("failed to initialize wmi\n");
1581                 ret = -EIO;
1582                 goto err_htc_cleanup;
1583         }
1584
1585         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1586
1587         ret = ath6kl_register_ieee80211_hw(ar);
1588         if (ret)
1589                 goto err_node_cleanup;
1590
1591         ret = ath6kl_debug_init(ar);
1592         if (ret) {
1593                 wiphy_unregister(ar->wiphy);
1594                 goto err_node_cleanup;
1595         }
1596
1597         for (i = 0; i < ar->vif_max; i++)
1598                 ar->avail_idx_map |= BIT(i);
1599
1600         rtnl_lock();
1601
1602         /* Add an initial station interface */
1603         ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0,
1604                                     INFRA_NETWORK);
1605
1606         rtnl_unlock();
1607
1608         if (!ndev) {
1609                 ath6kl_err("Failed to instantiate a network device\n");
1610                 ret = -ENOMEM;
1611                 wiphy_unregister(ar->wiphy);
1612                 goto err_debug_init;
1613         }
1614
1615
1616         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1617                         __func__, ndev->name, ndev, ar);
1618
1619         /* setup access class priority mappings */
1620         ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest  */
1621         ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1622         ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1623         ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1624
1625         /* give our connected endpoints some buffers */
1626         ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1627         ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1628
1629         /* allocate some buffers that handle larger AMSDU frames */
1630         ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1631
1632         ath6kl_cookie_init(ar);
1633
1634         ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1635                          ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1636
1637         if (suspend_cutpower)
1638                 ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER;
1639
1640         ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
1641                             WIPHY_FLAG_HAVE_AP_SME |
1642                             WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1643
1644         ar->wiphy->probe_resp_offload =
1645                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1646                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1647                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P |
1648                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U;
1649
1650         set_bit(FIRST_BOOT, &ar->flag);
1651
1652         ret = ath6kl_init_hw_start(ar);
1653         if (ret) {
1654                 ath6kl_err("Failed to start hardware: %d\n", ret);
1655                 goto err_rxbuf_cleanup;
1656         }
1657
1658         /*
1659          * Set mac address which is received in ready event
1660          * FIXME: Move to ath6kl_interface_add()
1661          */
1662         memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
1663
1664         return ret;
1665
1666 err_rxbuf_cleanup:
1667         ath6kl_htc_flush_rx_buf(ar->htc_target);
1668         ath6kl_cleanup_amsdu_rxbufs(ar);
1669         rtnl_lock();
1670         ath6kl_deinit_if_data(netdev_priv(ndev));
1671         rtnl_unlock();
1672         wiphy_unregister(ar->wiphy);
1673 err_debug_init:
1674         ath6kl_debug_cleanup(ar);
1675 err_node_cleanup:
1676         ath6kl_wmi_shutdown(ar->wmi);
1677         clear_bit(WMI_ENABLED, &ar->flag);
1678         ar->wmi = NULL;
1679 err_htc_cleanup:
1680         ath6kl_htc_cleanup(ar->htc_target);
1681 err_power_off:
1682         ath6kl_hif_power_off(ar);
1683 err_bmi_cleanup:
1684         ath6kl_bmi_cleanup(ar);
1685 err_wq:
1686         destroy_workqueue(ar->ath6kl_wq);
1687
1688         return ret;
1689 }
1690
1691 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1692 {
1693         static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1694         bool discon_issued;
1695
1696         netif_stop_queue(vif->ndev);
1697
1698         clear_bit(WLAN_ENABLED, &vif->flags);
1699
1700         if (wmi_ready) {
1701                 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1702                                 test_bit(CONNECT_PEND, &vif->flags);
1703                 ath6kl_disconnect(vif);
1704                 del_timer(&vif->disconnect_timer);
1705
1706                 if (discon_issued)
1707                         ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1708                                                 (vif->nw_type & AP_NETWORK) ?
1709                                                 bcast_mac : vif->bssid,
1710                                                 0, NULL, 0);
1711         }
1712
1713         if (vif->scan_req) {
1714                 cfg80211_scan_done(vif->scan_req, true);
1715                 vif->scan_req = NULL;
1716         }
1717 }
1718
1719 void ath6kl_stop_txrx(struct ath6kl *ar)
1720 {
1721         struct ath6kl_vif *vif, *tmp_vif;
1722
1723         set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1724
1725         if (down_interruptible(&ar->sem)) {
1726                 ath6kl_err("down_interruptible failed\n");
1727                 return;
1728         }
1729
1730         spin_lock_bh(&ar->list_lock);
1731         list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1732                 list_del(&vif->list);
1733                 spin_unlock_bh(&ar->list_lock);
1734                 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1735                 rtnl_lock();
1736                 ath6kl_deinit_if_data(vif);
1737                 rtnl_unlock();
1738                 spin_lock_bh(&ar->list_lock);
1739         }
1740         spin_unlock_bh(&ar->list_lock);
1741
1742         clear_bit(WMI_READY, &ar->flag);
1743
1744         /*
1745          * After wmi_shudown all WMI events will be dropped. We
1746          * need to cleanup the buffers allocated in AP mode and
1747          * give disconnect notification to stack, which usually
1748          * happens in the disconnect_event. Simulate the disconnect
1749          * event by calling the function directly. Sometimes
1750          * disconnect_event will be received when the debug logs
1751          * are collected.
1752          */
1753         ath6kl_wmi_shutdown(ar->wmi);
1754
1755         clear_bit(WMI_ENABLED, &ar->flag);
1756         if (ar->htc_target) {
1757                 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1758                 ath6kl_htc_stop(ar->htc_target);
1759         }
1760
1761         /*
1762          * Try to reset the device if we can. The driver may have been
1763          * configure NOT to reset the target during a debug session.
1764          */
1765         ath6kl_dbg(ATH6KL_DBG_TRC,
1766                         "attempting to reset target on instance destroy\n");
1767         ath6kl_reset_device(ar, ar->target_type, true, true);
1768
1769         clear_bit(WLAN_ENABLED, &ar->flag);
1770 }