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

   1
   2 /*
   3  * Copyright (c) 2011 Atheros Communications Inc.
   4  * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <linux/moduleparam.h>
  20 #include <linux/errno.h>
  21 #include <linux/export.h>
  22 #include <linux/of.h>
  23 #include <linux/mmc/sdio_func.h>
  24
  25 #include "core.h"
  26 #include "cfg80211.h"
  27 #include "target.h"
  28 #include "debug.h"
  29 #include "hif-ops.h"
  30
  31 static const struct ath6kl_hw hw_list[] = {
  32         {
  33                 .id                             = AR6003_HW_2_0_VERSION,
  34                 .name                           = "ar6003 hw 2.0",
  35                 .dataset_patch_addr             = 0x57e884,
  36                 .app_load_addr                  = 0x543180,
  37                 .board_ext_data_addr            = 0x57e500,
  38                 .reserved_ram_size              = 6912,
  39                 .refclk_hz                      = 26000000,
  40                 .uarttx_pin                     = 8,
  41
  42                 /* hw2.0 needs override address hardcoded */
  43                 .app_start_override_addr        = 0x944C00,
  44
  45                 .fw = {
  46                         .dir            = AR6003_HW_2_0_FW_DIR,
  47                         .otp            = AR6003_HW_2_0_OTP_FILE,
  48                         .fw             = AR6003_HW_2_0_FIRMWARE_FILE,
  49                         .tcmd           = AR6003_HW_2_0_TCMD_FIRMWARE_FILE,
  50                         .patch          = AR6003_HW_2_0_PATCH_FILE,
  51                 },
  52
  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                 .refclk_hz                      = 26000000,
  64                 .uarttx_pin                     = 8,
  65                 .testscript_addr                = 0x57ef74,
  66
  67                 .fw = {
  68                         .dir            = AR6003_HW_2_1_1_FW_DIR,
  69                         .otp            = AR6003_HW_2_1_1_OTP_FILE,
  70                         .fw             = AR6003_HW_2_1_1_FIRMWARE_FILE,
  71                         .tcmd           = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
  72                         .patch          = AR6003_HW_2_1_1_PATCH_FILE,
  73                         .utf            = AR6003_HW_2_1_1_UTF_FIRMWARE_FILE,
  74                         .testscript     = AR6003_HW_2_1_1_TESTSCRIPT_FILE,
  75                 },
  76
  77                 .fw_board               = AR6003_HW_2_1_1_BOARD_DATA_FILE,
  78                 .fw_default_board = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
  79         },
  80         {
  81                 .id                             = AR6004_HW_1_0_VERSION,
  82                 .name                           = "ar6004 hw 1.0",
  83                 .dataset_patch_addr             = 0x57e884,
  84                 .app_load_addr                  = 0x1234,
  85                 .board_ext_data_addr            = 0x437000,
  86                 .reserved_ram_size              = 19456,
  87                 .board_addr                     = 0x433900,
  88                 .refclk_hz                      = 26000000,
  89                 .uarttx_pin                     = 11,
  90
  91                 .fw = {
  92                         .dir            = AR6004_HW_1_0_FW_DIR,
  93                         .fw             = AR6004_HW_1_0_FIRMWARE_FILE,
  94                 },
  95
  96                 .fw_board               = AR6004_HW_1_0_BOARD_DATA_FILE,
  97                 .fw_default_board       = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
  98         },
  99         {
 100                 .id                             = AR6004_HW_1_1_VERSION,
 101                 .name                           = "ar6004 hw 1.1",
 102                 .dataset_patch_addr             = 0x57e884,
 103                 .app_load_addr                  = 0x1234,
 104                 .board_ext_data_addr            = 0x437000,
 105                 .reserved_ram_size              = 11264,
 106                 .board_addr                     = 0x43d400,
 107                 .refclk_hz                      = 40000000,
 108                 .uarttx_pin                     = 11,
 109
 110                 .fw = {
 111                         .dir            = AR6004_HW_1_1_FW_DIR,
 112                         .fw             = AR6004_HW_1_1_FIRMWARE_FILE,
 113                 },
 114
 115                 .fw_board               = AR6004_HW_1_1_BOARD_DATA_FILE,
 116                 .fw_default_board       = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
 117         },
 118 };
 119
 120 /*
 121  * Include definitions here that can be used to tune the WLAN module
 122  * behavior. Different customers can tune the behavior as per their needs,
 123  * here.
 124  */
 125
 126 /*
 127  * This configuration item enable/disable keepalive support.
 128  * Keepalive support: In the absence of any data traffic to AP, null
 129  * frames will be sent to the AP at periodic interval, to keep the association
 130  * active. This configuration item defines the periodic interval.
 131  * Use value of zero to disable keepalive support
 132  * Default: 60 seconds
 133  */
 134 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
 135
 136 /*
 137  * This configuration item sets the value of disconnect timeout
 138  * Firmware delays sending the disconnec event to the host for this
 139  * timeout after is gets disconnected from the current AP.
 140  * If the firmware successly roams within the disconnect timeout
 141  * it sends a new connect event
 142  */
 143 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
 144
 145
 146 #define ATH6KL_DATA_OFFSET    64
 147 struct sk_buff *ath6kl_buf_alloc(int size)
 148 {
 149         struct sk_buff *skb;
 150         u16 reserved;
 151
 152         /* Add chacheline space at front and back of buffer */
 153         reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
 154                    sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
 155         skb = dev_alloc_skb(size + reserved);
 156
 157         if (skb)
 158                 skb_reserve(skb, reserved - L1_CACHE_BYTES);
 159         return skb;
 160 }
 161
 162 void ath6kl_init_profile_info(struct ath6kl_vif *vif)
 163 {
 164         vif->ssid_len = 0;
 165         memset(vif->ssid, 0, sizeof(vif->ssid));
 166
 167         vif->dot11_auth_mode = OPEN_AUTH;
 168         vif->auth_mode = NONE_AUTH;
 169         vif->prwise_crypto = NONE_CRYPT;
 170         vif->prwise_crypto_len = 0;
 171         vif->grp_crypto = NONE_CRYPT;
 172         vif->grp_crypto_len = 0;
 173         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 174         memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
 175         memset(vif->bssid, 0, sizeof(vif->bssid));
 176         vif->bss_ch = 0;
 177 }
 178
 179 static int ath6kl_set_host_app_area(struct ath6kl *ar)
 180 {
 181         u32 address, data;
 182         struct host_app_area host_app_area;
 183
 184         /* Fetch the address of the host_app_area_s
 185          * instance in the host interest area */
 186         address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
 187         address = TARG_VTOP(ar->target_type, address);
 188
 189         if (ath6kl_diag_read32(ar, address, &data))
 190                 return -EIO;
 191
 192         address = TARG_VTOP(ar->target_type, data);
 193         host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
 194         if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
 195                               sizeof(struct host_app_area)))
 196                 return -EIO;
 197
 198         return 0;
 199 }
 200
 201 static inline void set_ac2_ep_map(struct ath6kl *ar,
 202                                   u8 ac,
 203                                   enum htc_endpoint_id ep)
 204 {
 205         ar->ac2ep_map[ac] = ep;
 206         ar->ep2ac_map[ep] = ac;
 207 }
 208
 209 /* connect to a service */
 210 static int ath6kl_connectservice(struct ath6kl *ar,
 211                                  struct htc_service_connect_req  *con_req,
 212                                  char *desc)
 213 {
 214         int status;
 215         struct htc_service_connect_resp response;
 216
 217         memset(&response, 0, sizeof(response));
 218
 219         status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
 220         if (status) {
 221                 ath6kl_err("failed to connect to %s service status:%d\n",
 222                            desc, status);
 223                 return status;
 224         }
 225
 226         switch (con_req->svc_id) {
 227         case WMI_CONTROL_SVC:
 228                 if (test_bit(WMI_ENABLED, &ar->flag))
 229                         ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
 230                 ar->ctrl_ep = response.endpoint;
 231                 break;
 232         case WMI_DATA_BE_SVC:
 233                 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
 234                 break;
 235         case WMI_DATA_BK_SVC:
 236                 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
 237                 break;
 238         case WMI_DATA_VI_SVC:
 239                 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
 240                 break;
 241         case WMI_DATA_VO_SVC:
 242                 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
 243                 break;
 244         default:
 245                 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
 246                 return -EINVAL;
 247         }
 248
 249         return 0;
 250 }
 251
 252 static int ath6kl_init_service_ep(struct ath6kl *ar)
 253 {
 254         struct htc_service_connect_req connect;
 255
 256         memset(&connect, 0, sizeof(connect));
 257
 258         /* these fields are the same for all service endpoints */
 259         connect.ep_cb.rx = ath6kl_rx;
 260         connect.ep_cb.rx_refill = ath6kl_rx_refill;
 261         connect.ep_cb.tx_full = ath6kl_tx_queue_full;
 262
 263         /*
 264          * Set the max queue depth so that our ath6kl_tx_queue_full handler
 265          * gets called.
 266         */
 267         connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
 268         connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
 269         if (!connect.ep_cb.rx_refill_thresh)
 270                 connect.ep_cb.rx_refill_thresh++;
 271
 272         /* connect to control service */
 273         connect.svc_id = WMI_CONTROL_SVC;
 274         if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
 275                 return -EIO;
 276
 277         connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
 278
 279         /*
 280          * Limit the HTC message size on the send path, although e can
 281          * receive A-MSDU frames of 4K, we will only send ethernet-sized
 282          * (802.3) frames on the send path.
 283          */
 284         connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
 285
 286         /*
 287          * To reduce the amount of committed memory for larger A_MSDU
 288          * frames, use the recv-alloc threshold mechanism for larger
 289          * packets.
 290          */
 291         connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
 292         connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
 293
 294         /*
 295          * For the remaining data services set the connection flag to
 296          * reduce dribbling, if configured to do so.
 297          */
 298         connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
 299         connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
 300         connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
 301
 302         connect.svc_id = WMI_DATA_BE_SVC;
 303
 304         if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
 305                 return -EIO;
 306
 307         /* connect to back-ground map this to WMI LOW_PRI */
 308         connect.svc_id = WMI_DATA_BK_SVC;
 309         if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
 310                 return -EIO;
 311
 312         /* connect to Video service, map this to to HI PRI */
 313         connect.svc_id = WMI_DATA_VI_SVC;
 314         if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
 315                 return -EIO;
 316
 317         /*
 318          * Connect to VO service, this is currently not mapped to a WMI
 319          * priority stream due to historical reasons. WMI originally
 320          * defined 3 priorities over 3 mailboxes We can change this when
 321          * WMI is reworked so that priorities are not dependent on
 322          * mailboxes.
 323          */
 324         connect.svc_id = WMI_DATA_VO_SVC;
 325         if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
 326                 return -EIO;
 327
 328         return 0;
 329 }
 330
 331 void ath6kl_init_control_info(struct ath6kl_vif *vif)
 332 {
 333         ath6kl_init_profile_info(vif);
 334         vif->def_txkey_index = 0;
 335         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 336         vif->ch_hint = 0;
 337 }
 338
 339 /*
 340  * Set HTC/Mbox operational parameters, this can only be called when the
 341  * target is in the BMI phase.
 342  */
 343 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
 344                                  u8 htc_ctrl_buf)
 345 {
 346         int status;
 347         u32 blk_size;
 348
 349         blk_size = ar->mbox_info.block_size;
 350
 351         if (htc_ctrl_buf)
 352                 blk_size |=  ((u32)htc_ctrl_buf) << 16;
 353
 354         /* set the host interest area for the block size */
 355         status = ath6kl_bmi_write_hi32(ar, hi_mbox_io_block_sz, blk_size);
 356         if (status) {
 357                 ath6kl_err("bmi_write_memory for IO block size failed\n");
 358                 goto out;
 359         }
 360
 361         ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
 362                    blk_size,
 363                    ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
 364
 365         if (mbox_isr_yield_val) {
 366                 /* set the host interest area for the mbox ISR yield limit */
 367                 status = ath6kl_bmi_write_hi32(ar, hi_mbox_isr_yield_limit,
 368                                                mbox_isr_yield_val);
 369                 if (status) {
 370                         ath6kl_err("bmi_write_memory for yield limit failed\n");
 371                         goto out;
 372                 }
 373         }
 374
 375 out:
 376         return status;
 377 }
 378
 379 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
 380 {
 381         int ret;
 382
 383         /*
 384          * Configure the device for rx dot11 header rules. "0,0" are the
 385          * default values. Required if checksum offload is needed. Set
 386          * RxMetaVersion to 2.
 387          */
 388         ret = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
 389                                                  ar->rx_meta_ver, 0, 0);
 390         if (ret) {
 391                 ath6kl_err("unable to set the rx frame format: %d\n", ret);
 392                 return ret;
 393         }
 394
 395         if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) {
 396                 ret = ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
 397                                               IGNORE_PS_FAIL_DURING_SCAN);
 398                 if (ret) {
 399                         ath6kl_err("unable to set power save fail event policy: %d\n",
 400                                    ret);
 401                         return ret;
 402                 }
 403         }
 404
 405         if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) {
 406                 ret = ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
 407                                                    WMI_FOLLOW_BARKER_IN_ERP);
 408                 if (ret) {
 409                         ath6kl_err("unable to set barker preamble policy: %d\n",
 410                                    ret);
 411                         return ret;
 412                 }
 413         }
 414
 415         ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
 416                                            WLAN_CONFIG_KEEP_ALIVE_INTERVAL);
 417         if (ret) {
 418                 ath6kl_err("unable to set keep alive interval: %d\n", ret);
 419                 return ret;
 420         }
 421
 422         ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
 423                                          WLAN_CONFIG_DISCONNECT_TIMEOUT);
 424         if (ret) {
 425                 ath6kl_err("unable to set disconnect timeout: %d\n", ret);
 426                 return ret;
 427         }
 428
 429         if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) {
 430                 ret = ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED);
 431                 if (ret) {
 432                         ath6kl_err("unable to set txop bursting: %d\n", ret);
 433                         return ret;
 434                 }
 435         }
 436
 437         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 438                 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
 439                                               P2P_FLAG_CAPABILITIES_REQ |
 440                                               P2P_FLAG_MACADDR_REQ |
 441                                               P2P_FLAG_HMODEL_REQ);
 442                 if (ret) {
 443                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
 444                                    "capabilities (%d) - assuming P2P not "
 445                                    "supported\n", ret);
 446                         ar->p2p = false;
 447                 }
 448         }
 449
 450         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 451                 /* Enable Probe Request reporting for P2P */
 452                 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
 453                 if (ret) {
 454                         ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
 455                                    "Request reporting (%d)\n", ret);
 456                 }
 457         }
 458
 459         return ret;
 460 }
 461
 462 int ath6kl_configure_target(struct ath6kl *ar)
 463 {
 464         u32 param, ram_reserved_size;
 465         u8 fw_iftype, fw_mode = 0, fw_submode = 0;
 466         int i, status;
 467
 468         param = !!(ar->conf_flags & ATH6KL_CONF_UART_DEBUG);
 469         if (ath6kl_bmi_write_hi32(ar, hi_serial_enable, param)) {
 470                 ath6kl_err("bmi_write_memory for uart debug failed\n");
 471                 return -EIO;
 472         }
 473
 474         /*
 475          * Note: Even though the firmware interface type is
 476          * chosen as BSS_STA for all three interfaces, can
 477          * be configured to IBSS/AP as long as the fw submode
 478          * remains normal mode (0 - AP, STA and IBSS). But
 479          * due to an target assert in firmware only one interface is
 480          * configured for now.
 481          */
 482         fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
 483
 484         for (i = 0; i < ar->vif_max; i++)
 485                 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
 486
 487         /*
 488          * By default, submodes :
 489          *              vif[0] - AP/STA/IBSS
 490          *              vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
 491          *              vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
 492          */
 493
 494         for (i = 0; i < ar->max_norm_iface; i++)
 495                 fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
 496                               (i * HI_OPTION_FW_SUBMODE_BITS);
 497
 498         for (i = ar->max_norm_iface; i < ar->vif_max; i++)
 499                 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 500                               (i * HI_OPTION_FW_SUBMODE_BITS);
 501
 502         if (ar->p2p && ar->vif_max == 1)
 503                 fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
 504
 505         if (ath6kl_bmi_write_hi32(ar, hi_app_host_interest,
 506                                   HTC_PROTOCOL_VERSION) != 0) {
 507                 ath6kl_err("bmi_write_memory for htc version failed\n");
 508                 return -EIO;
 509         }
 510
 511         /* set the firmware mode to STA/IBSS/AP */
 512         param = 0;
 513
 514         if (ath6kl_bmi_read_hi32(ar, hi_option_flag, &param) != 0) {
 515                 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
 516                 return -EIO;
 517         }
 518
 519         param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
 520         param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
 521         param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
 522
 523         param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
 524         param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
 525
 526         if (ath6kl_bmi_write_hi32(ar, hi_option_flag, param) != 0) {
 527                 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
 528                 return -EIO;
 529         }
 530
 531         ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
 532
 533         /*
 534          * Hardcode the address use for the extended board data
 535          * Ideally this should be pre-allocate by the OS at boot time
 536          * But since it is a new feature and board data is loaded
 537          * at init time, we have to workaround this from host.
 538          * It is difficult to patch the firmware boot code,
 539          * but possible in theory.
 540          */
 541
 542         param = ar->hw.board_ext_data_addr;
 543         ram_reserved_size = ar->hw.reserved_ram_size;
 544
 545         if (ath6kl_bmi_write_hi32(ar, hi_board_ext_data, param) != 0) {
 546                 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
 547                 return -EIO;
 548         }
 549
 550         if (ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz,
 551                                   ram_reserved_size) != 0) {
 552                 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
 553                 return -EIO;
 554         }
 555
 556         /* set the block size for the target */
 557         if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
 558                 /* use default number of control buffers */
 559                 return -EIO;
 560
 561         /* Configure GPIO AR600x UART */
 562         status = ath6kl_bmi_write_hi32(ar, hi_dbg_uart_txpin,
 563                                        ar->hw.uarttx_pin);
 564         if (status)
 565                 return status;
 566
 567         /* Configure target refclk_hz */
 568         status = ath6kl_bmi_write_hi32(ar, hi_refclk_hz, ar->hw.refclk_hz);
 569         if (status)
 570                 return status;
 571
 572         return 0;
 573 }
 574
 575 /* firmware upload */
 576 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
 577                          u8 **fw, size_t *fw_len)
 578 {
 579         const struct firmware *fw_entry;
 580         int ret;
 581
 582         ret = request_firmware(&fw_entry, filename, ar->dev);
 583         if (ret)
 584                 return ret;
 585
 586         *fw_len = fw_entry->size;
 587         *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
 588
 589         if (*fw == NULL)
 590                 ret = -ENOMEM;
 591
 592         release_firmware(fw_entry);
 593
 594         return ret;
 595 }
 596
 597 #ifdef CONFIG_OF
 598 /*
 599  * Check the device tree for a board-id and use it to construct
 600  * the pathname to the firmware file.  Used (for now) to find a
 601  * fallback to the "bdata.bin" file--typically a symlink to the
 602  * appropriate board-specific file.
 603  */
 604 static bool check_device_tree(struct ath6kl *ar)
 605 {
 606         static const char *board_id_prop = "atheros,board-id";
 607         struct device_node *node;
 608         char board_filename[64];
 609         const char *board_id;
 610         int ret;
 611
 612         for_each_compatible_node(node, NULL, "atheros,ath6kl") {
 613                 board_id = of_get_property(node, board_id_prop, NULL);
 614                 if (board_id == NULL) {
 615                         ath6kl_warn("No \"%s\" property on %s node.\n",
 616                                     board_id_prop, node->name);
 617                         continue;
 618                 }
 619                 snprintf(board_filename, sizeof(board_filename),
 620                          "%s/bdata.%s.bin", ar->hw.fw.dir, board_id);
 621
 622                 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
 623                                     &ar->fw_board_len);
 624                 if (ret) {
 625                         ath6kl_err("Failed to get DT board file %s: %d\n",
 626                                    board_filename, ret);
 627                         continue;
 628                 }
 629                 return true;
 630         }
 631         return false;
 632 }
 633 #else
 634 static bool check_device_tree(struct ath6kl *ar)
 635 {
 636         return false;
 637 }
 638 #endif /* CONFIG_OF */
 639
 640 static int ath6kl_fetch_board_file(struct ath6kl *ar)
 641 {
 642         const char *filename;
 643         int ret;
 644
 645         if (ar->fw_board != NULL)
 646                 return 0;
 647
 648         if (WARN_ON(ar->hw.fw_board == NULL))
 649                 return -EINVAL;
 650
 651         filename = ar->hw.fw_board;
 652
 653         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 654                             &ar->fw_board_len);
 655         if (ret == 0) {
 656                 /* managed to get proper board file */
 657                 return 0;
 658         }
 659
 660         if (check_device_tree(ar)) {
 661                 /* got board file from device tree */
 662                 return 0;
 663         }
 664
 665         /* there was no proper board file, try to use default instead */
 666         ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
 667                     filename, ret);
 668
 669         filename = ar->hw.fw_default_board;
 670
 671         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 672                             &ar->fw_board_len);
 673         if (ret) {
 674                 ath6kl_err("Failed to get default board file %s: %d\n",
 675                            filename, ret);
 676                 return ret;
 677         }
 678
 679         ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
 680         ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
 681
 682         return 0;
 683 }
 684
 685 static int ath6kl_fetch_otp_file(struct ath6kl *ar)
 686 {
 687         char filename[100];
 688         int ret;
 689
 690         if (ar->fw_otp != NULL)
 691                 return 0;
 692
 693         if (ar->hw.fw.otp == NULL) {
 694                 ath6kl_dbg(ATH6KL_DBG_BOOT,
 695                            "no OTP file configured for this hw\n");
 696                 return 0;
 697         }
 698
 699         snprintf(filename, sizeof(filename), "%s/%s",
 700                  ar->hw.fw.dir, ar->hw.fw.otp);
 701
 702         ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
 703                             &ar->fw_otp_len);
 704         if (ret) {
 705                 ath6kl_err("Failed to get OTP file %s: %d\n",
 706                            filename, ret);
 707                 return ret;
 708         }
 709
 710         return 0;
 711 }
 712
 713 static int ath6kl_fetch_testmode_file(struct ath6kl *ar)
 714 {
 715         char filename[100];
 716         int ret;
 717
 718         if (ar->testmode == 0)
 719                 return 0;
 720
 721         ath6kl_dbg(ATH6KL_DBG_BOOT, "testmode %d\n", ar->testmode);
 722
 723         if (ar->testmode == 2) {
 724                 if (ar->hw.fw.utf == NULL) {
 725                         ath6kl_warn("testmode 2 not supported\n");
 726                         return -EOPNOTSUPP;
 727                 }
 728
 729                 snprintf(filename, sizeof(filename), "%s/%s",
 730                          ar->hw.fw.dir, ar->hw.fw.utf);
 731         } else {
 732                 if (ar->hw.fw.tcmd == NULL) {
 733                         ath6kl_warn("testmode 1 not supported\n");
 734                         return -EOPNOTSUPP;
 735                 }
 736
 737                 snprintf(filename, sizeof(filename), "%s/%s",
 738                          ar->hw.fw.dir, ar->hw.fw.tcmd);
 739         }
 740
 741         set_bit(TESTMODE, &ar->flag);
 742
 743         ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 744         if (ret) {
 745                 ath6kl_err("Failed to get testmode %d firmware file %s: %d\n",
 746                            ar->testmode, filename, ret);
 747                 return ret;
 748         }
 749
 750         return 0;
 751 }
 752
 753 static int ath6kl_fetch_fw_file(struct ath6kl *ar)
 754 {
 755         char filename[100];
 756         int ret;
 757
 758         if (ar->fw != NULL)
 759                 return 0;
 760
 761         /* FIXME: remove WARN_ON() as we won't support FW API 1 for long */
 762         if (WARN_ON(ar->hw.fw.fw == NULL))
 763                 return -EINVAL;
 764
 765         snprintf(filename, sizeof(filename), "%s/%s",
 766                  ar->hw.fw.dir, ar->hw.fw.fw);
 767
 768         ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 769         if (ret) {
 770                 ath6kl_err("Failed to get firmware file %s: %d\n",
 771                            filename, ret);
 772                 return ret;
 773         }
 774
 775         return 0;
 776 }
 777
 778 static int ath6kl_fetch_patch_file(struct ath6kl *ar)
 779 {
 780         char filename[100];
 781         int ret;
 782
 783         if (ar->fw_patch != NULL)
 784                 return 0;
 785
 786         if (ar->hw.fw.patch == NULL)
 787                 return 0;
 788
 789         snprintf(filename, sizeof(filename), "%s/%s",
 790                  ar->hw.fw.dir, ar->hw.fw.patch);
 791
 792         ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
 793                             &ar->fw_patch_len);
 794         if (ret) {
 795                 ath6kl_err("Failed to get patch file %s: %d\n",
 796                            filename, ret);
 797                 return ret;
 798         }
 799
 800         return 0;
 801 }
 802
 803 static int ath6kl_fetch_testscript_file(struct ath6kl *ar)
 804 {
 805         char filename[100];
 806         int ret;
 807
 808         if (ar->testmode != 2)
 809                 return 0;
 810
 811         if (ar->fw_testscript != NULL)
 812                 return 0;
 813
 814         if (ar->hw.fw.testscript == NULL)
 815                 return 0;
 816
 817         snprintf(filename, sizeof(filename), "%s/%s",
 818                  ar->hw.fw.dir, ar->hw.fw.testscript);
 819
 820         ret = ath6kl_get_fw(ar, filename, &ar->fw_testscript,
 821                                 &ar->fw_testscript_len);
 822         if (ret) {
 823                 ath6kl_err("Failed to get testscript file %s: %d\n",
 824                            filename, ret);
 825                 return ret;
 826         }
 827
 828         return 0;
 829 }
 830
 831 static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
 832 {
 833         int ret;
 834
 835         ret = ath6kl_fetch_otp_file(ar);
 836         if (ret)
 837                 return ret;
 838
 839         ret = ath6kl_fetch_fw_file(ar);
 840         if (ret)
 841                 return ret;
 842
 843         ret = ath6kl_fetch_patch_file(ar);
 844         if (ret)
 845                 return ret;
 846
 847         ret = ath6kl_fetch_testscript_file(ar);
 848         if (ret)
 849                 return ret;
 850
 851         return 0;
 852 }
 853
 854 static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name)
 855 {
 856         size_t magic_len, len, ie_len;
 857         const struct firmware *fw;
 858         struct ath6kl_fw_ie *hdr;
 859         char filename[100];
 860         const u8 *data;
 861         int ret, ie_id, i, index, bit;
 862         __le32 *val;
 863
 864         snprintf(filename, sizeof(filename), "%s/%s", ar->hw.fw.dir, name);
 865
 866         ret = request_firmware(&fw, filename, ar->dev);
 867         if (ret)
 868                 return ret;
 869
 870         data = fw->data;
 871         len = fw->size;
 872
 873         /* magic also includes the null byte, check that as well */
 874         magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
 875
 876         if (len < magic_len) {
 877                 ret = -EINVAL;
 878                 goto out;
 879         }
 880
 881         if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
 882                 ret = -EINVAL;
 883                 goto out;
 884         }
 885
 886         len -= magic_len;
 887         data += magic_len;
 888
 889         /* loop elements */
 890         while (len > sizeof(struct ath6kl_fw_ie)) {
 891                 /* hdr is unaligned! */
 892                 hdr = (struct ath6kl_fw_ie *) data;
 893
 894                 ie_id = le32_to_cpup(&hdr->id);
 895                 ie_len = le32_to_cpup(&hdr->len);
 896
 897                 len -= sizeof(*hdr);
 898                 data += sizeof(*hdr);
 899
 900                 if (len < ie_len) {
 901                         ret = -EINVAL;
 902                         goto out;
 903                 }
 904
 905                 switch (ie_id) {
 906                 case ATH6KL_FW_IE_OTP_IMAGE:
 907                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
 908                                    ie_len);
 909
 910                         ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
 911
 912                         if (ar->fw_otp == NULL) {
 913                                 ret = -ENOMEM;
 914                                 goto out;
 915                         }
 916
 917                         ar->fw_otp_len = ie_len;
 918                         break;
 919                 case ATH6KL_FW_IE_FW_IMAGE:
 920                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
 921                                    ie_len);
 922
 923                         /* in testmode we already might have a fw file */
 924                         if (ar->fw != NULL)
 925                                 break;
 926
 927                         ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
 928
 929                         if (ar->fw == NULL) {
 930                                 ret = -ENOMEM;
 931                                 goto out;
 932                         }
 933
 934                         ar->fw_len = ie_len;
 935                         break;
 936                 case ATH6KL_FW_IE_PATCH_IMAGE:
 937                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
 938                                    ie_len);
 939
 940                         ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
 941
 942                         if (ar->fw_patch == NULL) {
 943                                 ret = -ENOMEM;
 944                                 goto out;
 945                         }
 946
 947                         ar->fw_patch_len = ie_len;
 948                         break;
 949                 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
 950                         val = (__le32 *) data;
 951                         ar->hw.reserved_ram_size = le32_to_cpup(val);
 952
 953                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 954                                    "found reserved ram size ie 0x%d\n",
 955                                    ar->hw.reserved_ram_size);
 956                         break;
 957                 case ATH6KL_FW_IE_CAPABILITIES:
 958                         if (ie_len < DIV_ROUND_UP(ATH6KL_FW_CAPABILITY_MAX, 8))
 959                                 break;
 960
 961                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 962                                    "found firmware capabilities ie (%zd B)\n",
 963                                    ie_len);
 964
 965                         for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
 966                                 index = i / 8;
 967                                 bit = i % 8;
 968
 969                                 if (data[index] & (1 << bit))
 970                                         __set_bit(i, ar->fw_capabilities);
 971                         }
 972
 973                         ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
 974                                         ar->fw_capabilities,
 975                                         sizeof(ar->fw_capabilities));
 976                         break;
 977                 case ATH6KL_FW_IE_PATCH_ADDR:
 978                         if (ie_len != sizeof(*val))
 979                                 break;
 980
 981                         val = (__le32 *) data;
 982                         ar->hw.dataset_patch_addr = le32_to_cpup(val);
 983
 984                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 985                                    "found patch address ie 0x%x\n",
 986                                    ar->hw.dataset_patch_addr);
 987                         break;
 988                 case ATH6KL_FW_IE_BOARD_ADDR:
 989                         if (ie_len != sizeof(*val))
 990                                 break;
 991
 992                         val = (__le32 *) data;
 993                         ar->hw.board_addr = le32_to_cpup(val);
 994
 995                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 996                                    "found board address ie 0x%x\n",
 997                                    ar->hw.board_addr);
 998                         break;
 999                 case ATH6KL_FW_IE_VIF_MAX:
1000                         if (ie_len != sizeof(*val))
1001                                 break;
1002
1003                         val = (__le32 *) data;
1004                         ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
1005                                             ATH6KL_VIF_MAX);
1006
1007                         if (ar->vif_max > 1 && !ar->p2p)
1008                                 ar->max_norm_iface = 2;
1009
1010                         ath6kl_dbg(ATH6KL_DBG_BOOT,
1011                                    "found vif max ie %d\n", ar->vif_max);
1012                         break;
1013                 default:
1014                         ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
1015                                    le32_to_cpup(&hdr->id));
1016                         break;
1017                 }
1018
1019                 len -= ie_len;
1020                 data += ie_len;
1021         };
1022
1023         ret = 0;
1024 out:
1025         release_firmware(fw);
1026
1027         return ret;
1028 }
1029
1030 int ath6kl_init_fetch_firmwares(struct ath6kl *ar)
1031 {
1032         int ret;
1033
1034         ret = ath6kl_fetch_board_file(ar);
1035         if (ret)
1036                 return ret;
1037
1038         ret = ath6kl_fetch_testmode_file(ar);
1039         if (ret)
1040                 return ret;
1041
1042         ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API3_FILE);
1043         if (ret == 0) {
1044                 ar->fw_api = 3;
1045                 goto out;
1046         }
1047
1048         ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API2_FILE);
1049         if (ret == 0) {
1050                 ar->fw_api = 2;
1051                 goto out;
1052         }
1053
1054         ret = ath6kl_fetch_fw_api1(ar);
1055         if (ret)
1056                 return ret;
1057
1058         ar->fw_api = 1;
1059
1060 out:
1061         ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api %d\n", ar->fw_api);
1062
1063         return 0;
1064 }
1065
1066 static int ath6kl_upload_board_file(struct ath6kl *ar)
1067 {
1068         u32 board_address, board_ext_address, param;
1069         u32 board_data_size, board_ext_data_size;
1070         int ret;
1071
1072         if (WARN_ON(ar->fw_board == NULL))
1073                 return -ENOENT;
1074
1075         /*
1076          * Determine where in Target RAM to write Board Data.
1077          * For AR6004, host determine Target RAM address for
1078          * writing board data.
1079          */
1080         if (ar->hw.board_addr != 0) {
1081                 board_address = ar->hw.board_addr;
1082                 ath6kl_bmi_write_hi32(ar, hi_board_data,
1083                                       board_address);
1084         } else {
1085                 ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address);
1086         }
1087
1088         /* determine where in target ram to write extended board data */
1089         ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address);
1090
1091         if (ar->target_type == TARGET_TYPE_AR6003 &&
1092             board_ext_address == 0) {
1093                 ath6kl_err("Failed to get board file target address.\n");
1094                 return -EINVAL;
1095         }
1096
1097         switch (ar->target_type) {
1098         case TARGET_TYPE_AR6003:
1099                 board_data_size = AR6003_BOARD_DATA_SZ;
1100                 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1101                 if (ar->fw_board_len > (board_data_size + board_ext_data_size))
1102                         board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ_V2;
1103                 break;
1104         case TARGET_TYPE_AR6004:
1105                 board_data_size = AR6004_BOARD_DATA_SZ;
1106                 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1107                 break;
1108         default:
1109                 WARN_ON(1);
1110                 return -EINVAL;
1111                 break;
1112         }
1113
1114         if (board_ext_address &&
1115             ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1116
1117                 /* write extended board data */
1118                 ath6kl_dbg(ATH6KL_DBG_BOOT,
1119                            "writing extended board data to 0x%x (%d B)\n",
1120                            board_ext_address, board_ext_data_size);
1121
1122                 ret = ath6kl_bmi_write(ar, board_ext_address,
1123                                        ar->fw_board + board_data_size,
1124                                        board_ext_data_size);
1125                 if (ret) {
1126                         ath6kl_err("Failed to write extended board data: %d\n",
1127                                    ret);
1128                         return ret;
1129                 }
1130
1131                 /* record that extended board data is initialized */
1132                 param = (board_ext_data_size << 16) | 1;
1133
1134                 ath6kl_bmi_write_hi32(ar, hi_board_ext_data_config, param);
1135         }
1136
1137         if (ar->fw_board_len < board_data_size) {
1138                 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1139                 ret = -EINVAL;
1140                 return ret;
1141         }
1142
1143         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1144                    board_address, board_data_size);
1145
1146         ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1147                                board_data_size);
1148
1149         if (ret) {
1150                 ath6kl_err("Board file bmi write failed: %d\n", ret);
1151                 return ret;
1152         }
1153
1154         /* record the fact that Board Data IS initialized */
1155         ath6kl_bmi_write_hi32(ar, hi_board_data_initialized, 1);
1156
1157         return ret;
1158 }
1159
1160 static int ath6kl_upload_otp(struct ath6kl *ar)
1161 {
1162         u32 address, param;
1163         bool from_hw = false;
1164         int ret;
1165
1166         if (ar->fw_otp == NULL)
1167                 return 0;
1168
1169         address = ar->hw.app_load_addr;
1170
1171         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1172                    ar->fw_otp_len);
1173
1174         ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1175                                        ar->fw_otp_len);
1176         if (ret) {
1177                 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1178                 return ret;
1179         }
1180
1181         /* read firmware start address */
1182         ret = ath6kl_bmi_read_hi32(ar, hi_app_start, &address);
1183
1184         if (ret) {
1185                 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1186                 return ret;
1187         }
1188
1189         if (ar->hw.app_start_override_addr == 0) {
1190                 ar->hw.app_start_override_addr = address;
1191                 from_hw = true;
1192         }
1193
1194         ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1195                    from_hw ? " (from hw)" : "",
1196                    ar->hw.app_start_override_addr);
1197
1198         /* execute the OTP code */
1199         ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1200                    ar->hw.app_start_override_addr);
1201         param = 0;
1202         ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1203
1204         return ret;
1205 }
1206
1207 static int ath6kl_upload_firmware(struct ath6kl *ar)
1208 {
1209         u32 address;
1210         int ret;
1211
1212         if (WARN_ON(ar->fw == NULL))
1213                 return 0;
1214
1215         address = ar->hw.app_load_addr;
1216
1217         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1218                    address, ar->fw_len);
1219
1220         ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1221
1222         if (ret) {
1223                 ath6kl_err("Failed to write firmware: %d\n", ret);
1224                 return ret;
1225         }
1226
1227         /*
1228          * Set starting address for firmware
1229          * Don't need to setup app_start override addr on AR6004
1230          */
1231         if (ar->target_type != TARGET_TYPE_AR6004) {
1232                 address = ar->hw.app_start_override_addr;
1233                 ath6kl_bmi_set_app_start(ar, address);
1234         }
1235         return ret;
1236 }
1237
1238 static int ath6kl_upload_patch(struct ath6kl *ar)
1239 {
1240         u32 address;
1241         int ret;
1242
1243         if (ar->fw_patch == NULL)
1244                 return 0;
1245
1246         address = ar->hw.dataset_patch_addr;
1247
1248         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1249                    address, ar->fw_patch_len);
1250
1251         ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1252         if (ret) {
1253                 ath6kl_err("Failed to write patch file: %d\n", ret);
1254                 return ret;
1255         }
1256
1257         ath6kl_bmi_write_hi32(ar, hi_dset_list_head, address);
1258
1259         return 0;
1260 }
1261
1262 static int ath6kl_upload_testscript(struct ath6kl *ar)
1263 {
1264         u32 address;
1265         int ret;
1266
1267         if (ar->testmode != 2)
1268                 return 0;
1269
1270         if (ar->fw_testscript == NULL)
1271                 return 0;
1272
1273         address = ar->hw.testscript_addr;
1274
1275         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing testscript to 0x%x (%zd B)\n",
1276                    address, ar->fw_testscript_len);
1277
1278         ret = ath6kl_bmi_write(ar, address, ar->fw_testscript,
1279                 ar->fw_testscript_len);
1280         if (ret) {
1281                 ath6kl_err("Failed to write testscript file: %d\n", ret);
1282                 return ret;
1283         }
1284
1285         ath6kl_bmi_write_hi32(ar, hi_ota_testscript, address);
1286         ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz, 4096);
1287         ath6kl_bmi_write_hi32(ar, hi_test_apps_related, 1);
1288
1289         return 0;
1290 }
1291
1292 static int ath6kl_init_upload(struct ath6kl *ar)
1293 {
1294         u32 param, options, sleep, address;
1295         int status = 0;
1296
1297         if (ar->target_type != TARGET_TYPE_AR6003 &&
1298             ar->target_type != TARGET_TYPE_AR6004)
1299                 return -EINVAL;
1300
1301         /* temporarily disable system sleep */
1302         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1303         status = ath6kl_bmi_reg_read(ar, address, &param);
1304         if (status)
1305                 return status;
1306
1307         options = param;
1308
1309         param |= ATH6KL_OPTION_SLEEP_DISABLE;
1310         status = ath6kl_bmi_reg_write(ar, address, param);
1311         if (status)
1312                 return status;
1313
1314         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1315         status = ath6kl_bmi_reg_read(ar, address, &param);
1316         if (status)
1317                 return status;
1318
1319         sleep = param;
1320
1321         param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1322         status = ath6kl_bmi_reg_write(ar, address, param);
1323         if (status)
1324                 return status;
1325
1326         ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1327                    options, sleep);
1328
1329         /* program analog PLL register */
1330         /* no need to control 40/44MHz clock on AR6004 */
1331         if (ar->target_type != TARGET_TYPE_AR6004) {
1332                 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1333                                               0xF9104001);
1334
1335                 if (status)
1336                         return status;
1337
1338                 /* Run at 80/88MHz by default */
1339                 param = SM(CPU_CLOCK_STANDARD, 1);
1340
1341                 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1342                 status = ath6kl_bmi_reg_write(ar, address, param);
1343                 if (status)
1344                         return status;
1345         }
1346
1347         param = 0;
1348         address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1349         param = SM(LPO_CAL_ENABLE, 1);
1350         status = ath6kl_bmi_reg_write(ar, address, param);
1351         if (status)
1352                 return status;
1353
1354         /* WAR to avoid SDIO CRC err */
1355         if (ar->version.target_ver == AR6003_HW_2_0_VERSION ||
1356             ar->version.target_ver == AR6003_HW_2_1_1_VERSION) {
1357                 ath6kl_err("temporary war to avoid sdio crc error\n");
1358
1359                 param = 0x20;
1360
1361                 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1362                 status = ath6kl_bmi_reg_write(ar, address, param);
1363                 if (status)
1364                         return status;
1365
1366                 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1367                 status = ath6kl_bmi_reg_write(ar, address, param);
1368                 if (status)
1369                         return status;
1370
1371                 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1372                 status = ath6kl_bmi_reg_write(ar, address, param);
1373                 if (status)
1374                         return status;
1375
1376                 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1377                 status = ath6kl_bmi_reg_write(ar, address, param);
1378                 if (status)
1379                         return status;
1380         }
1381
1382         /* write EEPROM data to Target RAM */
1383         status = ath6kl_upload_board_file(ar);
1384         if (status)
1385                 return status;
1386
1387         /* transfer One time Programmable data */
1388         status = ath6kl_upload_otp(ar);
1389         if (status)
1390                 return status;
1391
1392         /* Download Target firmware */
1393         status = ath6kl_upload_firmware(ar);
1394         if (status)
1395                 return status;
1396
1397         status = ath6kl_upload_patch(ar);
1398         if (status)
1399                 return status;
1400
1401         /* Download the test script */
1402         status = ath6kl_upload_testscript(ar);
1403         if (status)
1404                 return status;
1405
1406         /* Restore system sleep */
1407         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1408         status = ath6kl_bmi_reg_write(ar, address, sleep);
1409         if (status)
1410                 return status;
1411
1412         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1413         param = options | 0x20;
1414         status = ath6kl_bmi_reg_write(ar, address, param);
1415         if (status)
1416                 return status;
1417
1418         return status;
1419 }
1420
1421 int ath6kl_init_hw_params(struct ath6kl *ar)
1422 {
1423         const struct ath6kl_hw *uninitialized_var(hw);
1424         int i;
1425
1426         for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1427                 hw = &hw_list[i];
1428
1429                 if (hw->id == ar->version.target_ver)
1430                         break;
1431         }
1432
1433         if (i == ARRAY_SIZE(hw_list)) {
1434                 ath6kl_err("Unsupported hardware version: 0x%x\n",
1435                            ar->version.target_ver);
1436                 return -EINVAL;
1437         }
1438
1439         ar->hw = *hw;
1440
1441         ath6kl_dbg(ATH6KL_DBG_BOOT,
1442                    "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1443                    ar->version.target_ver, ar->target_type,
1444                    ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1445         ath6kl_dbg(ATH6KL_DBG_BOOT,
1446                    "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1447                    ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1448                    ar->hw.reserved_ram_size);
1449         ath6kl_dbg(ATH6KL_DBG_BOOT,
1450                    "refclk_hz %d uarttx_pin %d",
1451                    ar->hw.refclk_hz, ar->hw.uarttx_pin);
1452
1453         return 0;
1454 }
1455
1456 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1457 {
1458         switch (type) {
1459         case ATH6KL_HIF_TYPE_SDIO:
1460                 return "sdio";
1461         case ATH6KL_HIF_TYPE_USB:
1462                 return "usb";
1463         }
1464
1465         return NULL;
1466 }
1467
1468 int ath6kl_init_hw_start(struct ath6kl *ar)
1469 {
1470         long timeleft;
1471         int ret, i;
1472
1473         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1474
1475         ret = ath6kl_hif_power_on(ar);
1476         if (ret)
1477                 return ret;
1478
1479         ret = ath6kl_configure_target(ar);
1480         if (ret)
1481                 goto err_power_off;
1482
1483         ret = ath6kl_init_upload(ar);
1484         if (ret)
1485                 goto err_power_off;
1486
1487         /* Do we need to finish the BMI phase */
1488         /* FIXME: return error from ath6kl_bmi_done() */
1489         if (ath6kl_bmi_done(ar)) {
1490                 ret = -EIO;
1491                 goto err_power_off;
1492         }
1493
1494         /*
1495          * The reason we have to wait for the target here is that the
1496          * driver layer has to init BMI in order to set the host block
1497          * size.
1498          */
1499         if (ath6kl_htc_wait_target(ar->htc_target)) {
1500                 ret = -EIO;
1501                 goto err_power_off;
1502         }
1503
1504         if (ath6kl_init_service_ep(ar)) {
1505                 ret = -EIO;
1506                 goto err_cleanup_scatter;
1507         }
1508
1509         /* setup credit distribution */
1510         ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
1511
1512         /* start HTC */
1513         ret = ath6kl_htc_start(ar->htc_target);
1514         if (ret) {
1515                 /* FIXME: call this */
1516                 ath6kl_cookie_cleanup(ar);
1517                 goto err_cleanup_scatter;
1518         }
1519
1520         /* Wait for Wmi event to be ready */
1521         timeleft = wait_event_interruptible_timeout(ar->event_wq,
1522                                                     test_bit(WMI_READY,
1523                                                              &ar->flag),
1524                                                     WMI_TIMEOUT);
1525
1526         ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1527
1528
1529         if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1530                 ath6kl_info("%s %s fw %s api %d%s\n",
1531                             ar->hw.name,
1532                             ath6kl_init_get_hif_name(ar->hif_type),
1533                             ar->wiphy->fw_version,
1534                             ar->fw_api,
1535                             test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1536         }
1537
1538         if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1539                 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1540                            ATH6KL_ABI_VERSION, ar->version.abi_ver);
1541                 ret = -EIO;
1542                 goto err_htc_stop;
1543         }
1544
1545         if (!timeleft || signal_pending(current)) {
1546                 ath6kl_err("wmi is not ready or wait was interrupted\n");
1547                 ret = -EIO;
1548                 goto err_htc_stop;
1549         }
1550
1551         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1552
1553         /* communicate the wmi protocol verision to the target */
1554         /* FIXME: return error */
1555         if ((ath6kl_set_host_app_area(ar)) != 0)
1556                 ath6kl_err("unable to set the host app area\n");
1557
1558         for (i = 0; i < ar->vif_max; i++) {
1559                 ret = ath6kl_target_config_wlan_params(ar, i);
1560                 if (ret)
1561                         goto err_htc_stop;
1562         }
1563
1564         ar->state = ATH6KL_STATE_ON;
1565
1566         return 0;
1567
1568 err_htc_stop:
1569         ath6kl_htc_stop(ar->htc_target);
1570 err_cleanup_scatter:
1571         ath6kl_hif_cleanup_scatter(ar);
1572 err_power_off:
1573         ath6kl_hif_power_off(ar);
1574
1575         return ret;
1576 }
1577
1578 int ath6kl_init_hw_stop(struct ath6kl *ar)
1579 {
1580         int ret;
1581
1582         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1583
1584         ath6kl_htc_stop(ar->htc_target);
1585
1586         ath6kl_hif_stop(ar);
1587
1588         ath6kl_bmi_reset(ar);
1589
1590         ret = ath6kl_hif_power_off(ar);
1591         if (ret)
1592                 ath6kl_warn("failed to power off hif: %d\n", ret);
1593
1594         ar->state = ATH6KL_STATE_OFF;
1595
1596         return 0;
1597 }
1598
1599 /* FIXME: move this to cfg80211.c and rename to ath6kl_cfg80211_vif_stop() */
1600 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1601 {
1602         static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1603         bool discon_issued;
1604
1605         netif_stop_queue(vif->ndev);
1606
1607         clear_bit(WLAN_ENABLED, &vif->flags);
1608
1609         if (wmi_ready) {
1610                 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1611                                 test_bit(CONNECT_PEND, &vif->flags);
1612                 ath6kl_disconnect(vif);
1613                 del_timer(&vif->disconnect_timer);
1614
1615                 if (discon_issued)
1616                         ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1617                                                 (vif->nw_type & AP_NETWORK) ?
1618                                                 bcast_mac : vif->bssid,
1619                                                 0, NULL, 0);
1620         }
1621
1622         if (vif->scan_req) {
1623                 cfg80211_scan_done(vif->scan_req, true);
1624                 vif->scan_req = NULL;
1625         }
1626 }
1627
1628 void ath6kl_stop_txrx(struct ath6kl *ar)
1629 {
1630         struct ath6kl_vif *vif, *tmp_vif;
1631         int i;
1632
1633         set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1634
1635         if (down_interruptible(&ar->sem)) {
1636                 ath6kl_err("down_interruptible failed\n");
1637                 return;
1638         }
1639
1640         for (i = 0; i < AP_MAX_NUM_STA; i++)
1641                 aggr_reset_state(ar->sta_list[i].aggr_conn);
1642
1643         spin_lock_bh(&ar->list_lock);
1644         list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1645                 list_del(&vif->list);
1646                 spin_unlock_bh(&ar->list_lock);
1647                 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1648                 rtnl_lock();
1649                 ath6kl_cfg80211_vif_cleanup(vif);
1650                 rtnl_unlock();
1651                 spin_lock_bh(&ar->list_lock);
1652         }
1653         spin_unlock_bh(&ar->list_lock);
1654
1655         clear_bit(WMI_READY, &ar->flag);
1656
1657         /*
1658          * After wmi_shudown all WMI events will be dropped. We
1659          * need to cleanup the buffers allocated in AP mode and
1660          * give disconnect notification to stack, which usually
1661          * happens in the disconnect_event. Simulate the disconnect
1662          * event by calling the function directly. Sometimes
1663          * disconnect_event will be received when the debug logs
1664          * are collected.
1665          */
1666         ath6kl_wmi_shutdown(ar->wmi);
1667
1668         clear_bit(WMI_ENABLED, &ar->flag);
1669         if (ar->htc_target) {
1670                 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1671                 ath6kl_htc_stop(ar->htc_target);
1672         }
1673
1674         /*
1675          * Try to reset the device if we can. The driver may have been
1676          * configure NOT to reset the target during a debug session.
1677          */
1678         ath6kl_dbg(ATH6KL_DBG_TRC,
1679                    "attempting to reset target on instance destroy\n");
1680         ath6kl_reset_device(ar, ar->target_type, true, true);
1681
1682         clear_bit(WLAN_ENABLED, &ar->flag);
1683
1684         up(&ar->sem);
1685 }
1686 EXPORT_SYMBOL(ath6kl_stop_txrx);