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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  20
  21 #include <linux/moduleparam.h>
  22 #include <linux/errno.h>
  23 #include <linux/export.h>
  24 #include <linux/of.h>
  25 #include <linux/mmc/sdio_func.h>
  26 #include <linux/vmalloc.h>
  27
  28 #include "core.h"
  29 #include "cfg80211.h"
  30 #include "target.h"
  31 #include "debug.h"
  32 #include "hif-ops.h"
  33 #include "htc-ops.h"
  34
  35 static const struct ath6kl_hw hw_list[] = {
  36         {
  37                 .id                             = AR6003_HW_2_0_VERSION,
  38                 .name                           = "ar6003 hw 2.0",
  39                 .dataset_patch_addr             = 0x57e884,
  40                 .app_load_addr                  = 0x543180,
  41                 .board_ext_data_addr            = 0x57e500,
  42                 .reserved_ram_size              = 6912,
  43                 .refclk_hz                      = 26000000,
  44                 .uarttx_pin                     = 8,
  45                 .flags                          = 0,
  46
  47                 /* hw2.0 needs override address hardcoded */
  48                 .app_start_override_addr        = 0x944C00,
  49
  50                 .fw = {
  51                         .dir            = AR6003_HW_2_0_FW_DIR,
  52                         .otp            = AR6003_HW_2_0_OTP_FILE,
  53                         .fw             = AR6003_HW_2_0_FIRMWARE_FILE,
  54                         .tcmd           = AR6003_HW_2_0_TCMD_FIRMWARE_FILE,
  55                         .patch          = AR6003_HW_2_0_PATCH_FILE,
  56                 },
  57
  58                 .fw_board               = AR6003_HW_2_0_BOARD_DATA_FILE,
  59                 .fw_default_board       = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE,
  60         },
  61         {
  62                 .id                             = AR6003_HW_2_1_1_VERSION,
  63                 .name                           = "ar6003 hw 2.1.1",
  64                 .dataset_patch_addr             = 0x57ff74,
  65                 .app_load_addr                  = 0x1234,
  66                 .board_ext_data_addr            = 0x542330,
  67                 .reserved_ram_size              = 512,
  68                 .refclk_hz                      = 26000000,
  69                 .uarttx_pin                     = 8,
  70                 .testscript_addr                = 0x57ef74,
  71                 .flags                          = 0,
  72
  73                 .fw = {
  74                         .dir            = AR6003_HW_2_1_1_FW_DIR,
  75                         .otp            = AR6003_HW_2_1_1_OTP_FILE,
  76                         .fw             = AR6003_HW_2_1_1_FIRMWARE_FILE,
  77                         .tcmd           = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
  78                         .patch          = AR6003_HW_2_1_1_PATCH_FILE,
  79                         .utf            = AR6003_HW_2_1_1_UTF_FIRMWARE_FILE,
  80                         .testscript     = AR6003_HW_2_1_1_TESTSCRIPT_FILE,
  81                 },
  82
  83                 .fw_board               = AR6003_HW_2_1_1_BOARD_DATA_FILE,
  84                 .fw_default_board = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
  85         },
  86         {
  87                 .id                             = AR6004_HW_1_0_VERSION,
  88                 .name                           = "ar6004 hw 1.0",
  89                 .dataset_patch_addr             = 0x57e884,
  90                 .app_load_addr                  = 0x1234,
  91                 .board_ext_data_addr            = 0x437000,
  92                 .reserved_ram_size              = 19456,
  93                 .board_addr                     = 0x433900,
  94                 .refclk_hz                      = 26000000,
  95                 .uarttx_pin                     = 11,
  96                 .flags                          = ATH6KL_HW_64BIT_RATES,
  97
  98                 .fw = {
  99                         .dir            = AR6004_HW_1_0_FW_DIR,
 100                         .fw             = AR6004_HW_1_0_FIRMWARE_FILE,
 101                 },
 102
 103                 .fw_board               = AR6004_HW_1_0_BOARD_DATA_FILE,
 104                 .fw_default_board       = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
 105         },
 106         {
 107                 .id                             = AR6004_HW_1_1_VERSION,
 108                 .name                           = "ar6004 hw 1.1",
 109                 .dataset_patch_addr             = 0x57e884,
 110                 .app_load_addr                  = 0x1234,
 111                 .board_ext_data_addr            = 0x437000,
 112                 .reserved_ram_size              = 11264,
 113                 .board_addr                     = 0x43d400,
 114                 .refclk_hz                      = 40000000,
 115                 .uarttx_pin                     = 11,
 116                 .flags                          = ATH6KL_HW_64BIT_RATES,
 117
 118                 .fw = {
 119                         .dir            = AR6004_HW_1_1_FW_DIR,
 120                         .fw             = AR6004_HW_1_1_FIRMWARE_FILE,
 121                 },
 122
 123                 .fw_board               = AR6004_HW_1_1_BOARD_DATA_FILE,
 124                 .fw_default_board       = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
 125         },
 126         {
 127                 .id                             = AR6004_HW_1_2_VERSION,
 128                 .name                           = "ar6004 hw 1.2",
 129                 .dataset_patch_addr             = 0x436ecc,
 130                 .app_load_addr                  = 0x1234,
 131                 .board_ext_data_addr            = 0x437000,
 132                 .reserved_ram_size              = 9216,
 133                 .board_addr                     = 0x435c00,
 134                 .refclk_hz                      = 40000000,
 135                 .uarttx_pin                     = 11,
 136                 .flags                          = ATH6KL_HW_64BIT_RATES,
 137
 138                 .fw = {
 139                         .dir            = AR6004_HW_1_2_FW_DIR,
 140                         .fw             = AR6004_HW_1_2_FIRMWARE_FILE,
 141                 },
 142                 .fw_board               = AR6004_HW_1_2_BOARD_DATA_FILE,
 143                 .fw_default_board       = AR6004_HW_1_2_DEFAULT_BOARD_DATA_FILE,
 144         },
 145         {
 146                 .id                             = AR6004_HW_1_3_VERSION,
 147                 .name                           = "ar6004 hw 1.3",
 148                 .dataset_patch_addr             = 0x437860,
 149                 .app_load_addr                  = 0x1234,
 150                 .board_ext_data_addr            = 0x437000,
 151                 .reserved_ram_size              = 7168,
 152                 .board_addr                     = 0x436400,
 153                 .refclk_hz                      = 40000000,
 154                 .uarttx_pin                     = 11,
 155                 .flags                          = ATH6KL_HW_64BIT_RATES,
 156
 157                 .fw = {
 158                         .dir            = AR6004_HW_1_3_FW_DIR,
 159                         .fw             = AR6004_HW_1_3_FIRMWARE_FILE,
 160                 },
 161
 162                 .fw_board               = AR6004_HW_1_3_BOARD_DATA_FILE,
 163                 .fw_default_board       = AR6004_HW_1_3_DEFAULT_BOARD_DATA_FILE,
 164         },
 165 };
 166
 167 /*
 168  * Include definitions here that can be used to tune the WLAN module
 169  * behavior. Different customers can tune the behavior as per their needs,
 170  * here.
 171  */
 172
 173 /*
 174  * This configuration item enable/disable keepalive support.
 175  * Keepalive support: In the absence of any data traffic to AP, null
 176  * frames will be sent to the AP at periodic interval, to keep the association
 177  * active. This configuration item defines the periodic interval.
 178  * Use value of zero to disable keepalive support
 179  * Default: 60 seconds
 180  */
 181 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
 182
 183 /*
 184  * This configuration item sets the value of disconnect timeout
 185  * Firmware delays sending the disconnec event to the host for this
 186  * timeout after is gets disconnected from the current AP.
 187  * If the firmware successly roams within the disconnect timeout
 188  * it sends a new connect event
 189  */
 190 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
 191
 192
 193 #define ATH6KL_DATA_OFFSET    64
 194 struct sk_buff *ath6kl_buf_alloc(int size)
 195 {
 196         struct sk_buff *skb;
 197         u16 reserved;
 198
 199         /* Add chacheline space at front and back of buffer */
 200         reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
 201                    sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
 202         skb = dev_alloc_skb(size + reserved);
 203
 204         if (skb)
 205                 skb_reserve(skb, reserved - L1_CACHE_BYTES);
 206         return skb;
 207 }
 208
 209 void ath6kl_init_profile_info(struct ath6kl_vif *vif)
 210 {
 211         vif->ssid_len = 0;
 212         memset(vif->ssid, 0, sizeof(vif->ssid));
 213
 214         vif->dot11_auth_mode = OPEN_AUTH;
 215         vif->auth_mode = NONE_AUTH;
 216         vif->prwise_crypto = NONE_CRYPT;
 217         vif->prwise_crypto_len = 0;
 218         vif->grp_crypto = NONE_CRYPT;
 219         vif->grp_crypto_len = 0;
 220         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 221         memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
 222         memset(vif->bssid, 0, sizeof(vif->bssid));
 223         vif->bss_ch = 0;
 224 }
 225
 226 static int ath6kl_set_host_app_area(struct ath6kl *ar)
 227 {
 228         u32 address, data;
 229         struct host_app_area host_app_area;
 230
 231         /* Fetch the address of the host_app_area_s
 232          * instance in the host interest area */
 233         address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
 234         address = TARG_VTOP(ar->target_type, address);
 235
 236         if (ath6kl_diag_read32(ar, address, &data))
 237                 return -EIO;
 238
 239         address = TARG_VTOP(ar->target_type, data);
 240         host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
 241         if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
 242                               sizeof(struct host_app_area)))
 243                 return -EIO;
 244
 245         return 0;
 246 }
 247
 248 static inline void set_ac2_ep_map(struct ath6kl *ar,
 249                                   u8 ac,
 250                                   enum htc_endpoint_id ep)
 251 {
 252         ar->ac2ep_map[ac] = ep;
 253         ar->ep2ac_map[ep] = ac;
 254 }
 255
 256 /* connect to a service */
 257 static int ath6kl_connectservice(struct ath6kl *ar,
 258                                  struct htc_service_connect_req  *con_req,
 259                                  char *desc)
 260 {
 261         int status;
 262         struct htc_service_connect_resp response;
 263
 264         memset(&response, 0, sizeof(response));
 265
 266         status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
 267         if (status) {
 268                 ath6kl_err("failed to connect to %s service status:%d\n",
 269                            desc, status);
 270                 return status;
 271         }
 272
 273         switch (con_req->svc_id) {
 274         case WMI_CONTROL_SVC:
 275                 if (test_bit(WMI_ENABLED, &ar->flag))
 276                         ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
 277                 ar->ctrl_ep = response.endpoint;
 278                 break;
 279         case WMI_DATA_BE_SVC:
 280                 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
 281                 break;
 282         case WMI_DATA_BK_SVC:
 283                 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
 284                 break;
 285         case WMI_DATA_VI_SVC:
 286                 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
 287                 break;
 288         case WMI_DATA_VO_SVC:
 289                 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
 290                 break;
 291         default:
 292                 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
 293                 return -EINVAL;
 294         }
 295
 296         return 0;
 297 }
 298
 299 static int ath6kl_init_service_ep(struct ath6kl *ar)
 300 {
 301         struct htc_service_connect_req connect;
 302
 303         memset(&connect, 0, sizeof(connect));
 304
 305         /* these fields are the same for all service endpoints */
 306         connect.ep_cb.tx_comp_multi = ath6kl_tx_complete;
 307         connect.ep_cb.rx = ath6kl_rx;
 308         connect.ep_cb.rx_refill = ath6kl_rx_refill;
 309         connect.ep_cb.tx_full = ath6kl_tx_queue_full;
 310
 311         /*
 312          * Set the max queue depth so that our ath6kl_tx_queue_full handler
 313          * gets called.
 314         */
 315         connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
 316         connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
 317         if (!connect.ep_cb.rx_refill_thresh)
 318                 connect.ep_cb.rx_refill_thresh++;
 319
 320         /* connect to control service */
 321         connect.svc_id = WMI_CONTROL_SVC;
 322         if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
 323                 return -EIO;
 324
 325         connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
 326
 327         /*
 328          * Limit the HTC message size on the send path, although e can
 329          * receive A-MSDU frames of 4K, we will only send ethernet-sized
 330          * (802.3) frames on the send path.
 331          */
 332         connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
 333
 334         /*
 335          * To reduce the amount of committed memory for larger A_MSDU
 336          * frames, use the recv-alloc threshold mechanism for larger
 337          * packets.
 338          */
 339         connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
 340         connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
 341
 342         /*
 343          * For the remaining data services set the connection flag to
 344          * reduce dribbling, if configured to do so.
 345          */
 346         connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
 347         connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
 348         connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
 349
 350         connect.svc_id = WMI_DATA_BE_SVC;
 351
 352         if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
 353                 return -EIO;
 354
 355         /* connect to back-ground map this to WMI LOW_PRI */
 356         connect.svc_id = WMI_DATA_BK_SVC;
 357         if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
 358                 return -EIO;
 359
 360         /* connect to Video service, map this to to HI PRI */
 361         connect.svc_id = WMI_DATA_VI_SVC;
 362         if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
 363                 return -EIO;
 364
 365         /*
 366          * Connect to VO service, this is currently not mapped to a WMI
 367          * priority stream due to historical reasons. WMI originally
 368          * defined 3 priorities over 3 mailboxes We can change this when
 369          * WMI is reworked so that priorities are not dependent on
 370          * mailboxes.
 371          */
 372         connect.svc_id = WMI_DATA_VO_SVC;
 373         if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
 374                 return -EIO;
 375
 376         return 0;
 377 }
 378
 379 void ath6kl_init_control_info(struct ath6kl_vif *vif)
 380 {
 381         ath6kl_init_profile_info(vif);
 382         vif->def_txkey_index = 0;
 383         memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
 384         vif->ch_hint = 0;
 385 }
 386
 387 /*
 388  * Set HTC/Mbox operational parameters, this can only be called when the
 389  * target is in the BMI phase.
 390  */
 391 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
 392                                  u8 htc_ctrl_buf)
 393 {
 394         int status;
 395         u32 blk_size;
 396
 397         blk_size = ar->mbox_info.block_size;
 398
 399         if (htc_ctrl_buf)
 400                 blk_size |=  ((u32)htc_ctrl_buf) << 16;
 401
 402         /* set the host interest area for the block size */
 403         status = ath6kl_bmi_write_hi32(ar, hi_mbox_io_block_sz, blk_size);
 404         if (status) {
 405                 ath6kl_err("bmi_write_memory for IO block size failed\n");
 406                 goto out;
 407         }
 408
 409         ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
 410                    blk_size,
 411                    ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
 412
 413         if (mbox_isr_yield_val) {
 414                 /* set the host interest area for the mbox ISR yield limit */
 415                 status = ath6kl_bmi_write_hi32(ar, hi_mbox_isr_yield_limit,
 416                                                mbox_isr_yield_val);
 417                 if (status) {
 418                         ath6kl_err("bmi_write_memory for yield limit failed\n");
 419                         goto out;
 420                 }
 421         }
 422
 423 out:
 424         return status;
 425 }
 426
 427 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
 428 {
 429         int ret;
 430
 431         /*
 432          * Configure the device for rx dot11 header rules. "0,0" are the
 433          * default values. Required if checksum offload is needed. Set
 434          * RxMetaVersion to 2.
 435          */
 436         ret = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
 437                                                  ar->rx_meta_ver, 0, 0);
 438         if (ret) {
 439                 ath6kl_err("unable to set the rx frame format: %d\n", ret);
 440                 return ret;
 441         }
 442
 443         if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) {
 444                 ret = ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
 445                                               IGNORE_PS_FAIL_DURING_SCAN);
 446                 if (ret) {
 447                         ath6kl_err("unable to set power save fail event policy: %d\n",
 448                                    ret);
 449                         return ret;
 450                 }
 451         }
 452
 453         if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) {
 454                 ret = ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
 455                                                    WMI_FOLLOW_BARKER_IN_ERP);
 456                 if (ret) {
 457                         ath6kl_err("unable to set barker preamble policy: %d\n",
 458                                    ret);
 459                         return ret;
 460                 }
 461         }
 462
 463         ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
 464                                            WLAN_CONFIG_KEEP_ALIVE_INTERVAL);
 465         if (ret) {
 466                 ath6kl_err("unable to set keep alive interval: %d\n", ret);
 467                 return ret;
 468         }
 469
 470         ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
 471                                          WLAN_CONFIG_DISCONNECT_TIMEOUT);
 472         if (ret) {
 473                 ath6kl_err("unable to set disconnect timeout: %d\n", ret);
 474                 return ret;
 475         }
 476
 477         if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) {
 478                 ret = ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED);
 479                 if (ret) {
 480                         ath6kl_err("unable to set txop bursting: %d\n", ret);
 481                         return ret;
 482                 }
 483         }
 484
 485         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 486                 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
 487                                               P2P_FLAG_CAPABILITIES_REQ |
 488                                               P2P_FLAG_MACADDR_REQ |
 489                                               P2P_FLAG_HMODEL_REQ);
 490                 if (ret) {
 491                         ath6kl_dbg(ATH6KL_DBG_TRC,
 492                                    "failed to request P2P capabilities (%d) - assuming P2P not supported\n",
 493                                    ret);
 494                         ar->p2p = false;
 495                 }
 496         }
 497
 498         if (ar->p2p && (ar->vif_max == 1 || idx)) {
 499                 /* Enable Probe Request reporting for P2P */
 500                 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
 501                 if (ret) {
 502                         ath6kl_dbg(ATH6KL_DBG_TRC,
 503                                    "failed to enable Probe Request reporting (%d)\n",
 504                                    ret);
 505                 }
 506         }
 507
 508         return ret;
 509 }
 510
 511 int ath6kl_configure_target(struct ath6kl *ar)
 512 {
 513         u32 param, ram_reserved_size;
 514         u8 fw_iftype, fw_mode = 0, fw_submode = 0;
 515         int i, status;
 516
 517         param = !!(ar->conf_flags & ATH6KL_CONF_UART_DEBUG);
 518         if (ath6kl_bmi_write_hi32(ar, hi_serial_enable, param)) {
 519                 ath6kl_err("bmi_write_memory for uart debug failed\n");
 520                 return -EIO;
 521         }
 522
 523         /*
 524          * Note: Even though the firmware interface type is
 525          * chosen as BSS_STA for all three interfaces, can
 526          * be configured to IBSS/AP as long as the fw submode
 527          * remains normal mode (0 - AP, STA and IBSS). But
 528          * due to an target assert in firmware only one interface is
 529          * configured for now.
 530          */
 531         fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
 532
 533         for (i = 0; i < ar->vif_max; i++)
 534                 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
 535
 536         /*
 537          * Submodes when fw does not support dynamic interface
 538          * switching:
 539          *              vif[0] - AP/STA/IBSS
 540          *              vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
 541          *              vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
 542          * Otherwise, All the interface are initialized to p2p dev.
 543          */
 544
 545         if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
 546                      ar->fw_capabilities)) {
 547                 for (i = 0; i < ar->vif_max; i++)
 548                         fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 549                                 (i * HI_OPTION_FW_SUBMODE_BITS);
 550         } else {
 551                 for (i = 0; i < ar->max_norm_iface; i++)
 552                         fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
 553                                 (i * HI_OPTION_FW_SUBMODE_BITS);
 554
 555                 for (i = ar->max_norm_iface; i < ar->vif_max; i++)
 556                         fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
 557                                 (i * HI_OPTION_FW_SUBMODE_BITS);
 558
 559                 if (ar->p2p && ar->vif_max == 1)
 560                         fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
 561         }
 562
 563         if (ath6kl_bmi_write_hi32(ar, hi_app_host_interest,
 564                                   HTC_PROTOCOL_VERSION) != 0) {
 565                 ath6kl_err("bmi_write_memory for htc version failed\n");
 566                 return -EIO;
 567         }
 568
 569         /* set the firmware mode to STA/IBSS/AP */
 570         param = 0;
 571
 572         if (ath6kl_bmi_read_hi32(ar, hi_option_flag, &param) != 0) {
 573                 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
 574                 return -EIO;
 575         }
 576
 577         param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
 578         param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
 579         param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
 580
 581         param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
 582         param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
 583
 584         if (ath6kl_bmi_write_hi32(ar, hi_option_flag, param) != 0) {
 585                 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
 586                 return -EIO;
 587         }
 588
 589         ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
 590
 591         /*
 592          * Hardcode the address use for the extended board data
 593          * Ideally this should be pre-allocate by the OS at boot time
 594          * But since it is a new feature and board data is loaded
 595          * at init time, we have to workaround this from host.
 596          * It is difficult to patch the firmware boot code,
 597          * but possible in theory.
 598          */
 599
 600         if (ar->target_type == TARGET_TYPE_AR6003) {
 601                 param = ar->hw.board_ext_data_addr;
 602                 ram_reserved_size = ar->hw.reserved_ram_size;
 603
 604                 if (ath6kl_bmi_write_hi32(ar, hi_board_ext_data, param) != 0) {
 605                         ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
 606                         return -EIO;
 607                 }
 608
 609                 if (ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz,
 610                                           ram_reserved_size) != 0) {
 611                         ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
 612                         return -EIO;
 613                 }
 614         }
 615
 616         /* set the block size for the target */
 617         if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
 618                 /* use default number of control buffers */
 619                 return -EIO;
 620
 621         /* Configure GPIO AR600x UART */
 622         status = ath6kl_bmi_write_hi32(ar, hi_dbg_uart_txpin,
 623                                        ar->hw.uarttx_pin);
 624         if (status)
 625                 return status;
 626
 627         /* Configure target refclk_hz */
 628         status = ath6kl_bmi_write_hi32(ar, hi_refclk_hz, ar->hw.refclk_hz);
 629         if (status)
 630                 return status;
 631
 632         return 0;
 633 }
 634
 635 /* firmware upload */
 636 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
 637                          u8 **fw, size_t *fw_len)
 638 {
 639         const struct firmware *fw_entry;
 640         int ret;
 641
 642         ret = request_firmware(&fw_entry, filename, ar->dev);
 643         if (ret)
 644                 return ret;
 645
 646         *fw_len = fw_entry->size;
 647         *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
 648
 649         if (*fw == NULL)
 650                 ret = -ENOMEM;
 651
 652         release_firmware(fw_entry);
 653
 654         return ret;
 655 }
 656
 657 #ifdef CONFIG_OF
 658 /*
 659  * Check the device tree for a board-id and use it to construct
 660  * the pathname to the firmware file.  Used (for now) to find a
 661  * fallback to the "bdata.bin" file--typically a symlink to the
 662  * appropriate board-specific file.
 663  */
 664 static bool check_device_tree(struct ath6kl *ar)
 665 {
 666         static const char *board_id_prop = "atheros,board-id";
 667         struct device_node *node;
 668         char board_filename[64];
 669         const char *board_id;
 670         int ret;
 671
 672         for_each_compatible_node(node, NULL, "atheros,ath6kl") {
 673                 board_id = of_get_property(node, board_id_prop, NULL);
 674                 if (board_id == NULL) {
 675                         ath6kl_warn("No \"%s\" property on %s node.\n",
 676                                     board_id_prop, node->name);
 677                         continue;
 678                 }
 679                 snprintf(board_filename, sizeof(board_filename),
 680                          "%s/bdata.%s.bin", ar->hw.fw.dir, board_id);
 681
 682                 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
 683                                     &ar->fw_board_len);
 684                 if (ret) {
 685                         ath6kl_err("Failed to get DT board file %s: %d\n",
 686                                    board_filename, ret);
 687                         continue;
 688                 }
 689                 return true;
 690         }
 691         return false;
 692 }
 693 #else
 694 static bool check_device_tree(struct ath6kl *ar)
 695 {
 696         return false;
 697 }
 698 #endif /* CONFIG_OF */
 699
 700 static int ath6kl_fetch_board_file(struct ath6kl *ar)
 701 {
 702         const char *filename;
 703         int ret;
 704
 705         if (ar->fw_board != NULL)
 706                 return 0;
 707
 708         if (WARN_ON(ar->hw.fw_board == NULL))
 709                 return -EINVAL;
 710
 711         filename = ar->hw.fw_board;
 712
 713         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 714                             &ar->fw_board_len);
 715         if (ret == 0) {
 716                 /* managed to get proper board file */
 717                 return 0;
 718         }
 719
 720         if (check_device_tree(ar)) {
 721                 /* got board file from device tree */
 722                 return 0;
 723         }
 724
 725         /* there was no proper board file, try to use default instead */
 726         ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
 727                     filename, ret);
 728
 729         filename = ar->hw.fw_default_board;
 730
 731         ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
 732                             &ar->fw_board_len);
 733         if (ret) {
 734                 ath6kl_err("Failed to get default board file %s: %d\n",
 735                            filename, ret);
 736                 return ret;
 737         }
 738
 739         ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
 740         ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
 741
 742         return 0;
 743 }
 744
 745 static int ath6kl_fetch_otp_file(struct ath6kl *ar)
 746 {
 747         char filename[100];
 748         int ret;
 749
 750         if (ar->fw_otp != NULL)
 751                 return 0;
 752
 753         if (ar->hw.fw.otp == NULL) {
 754                 ath6kl_dbg(ATH6KL_DBG_BOOT,
 755                            "no OTP file configured for this hw\n");
 756                 return 0;
 757         }
 758
 759         snprintf(filename, sizeof(filename), "%s/%s",
 760                  ar->hw.fw.dir, ar->hw.fw.otp);
 761
 762         ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
 763                             &ar->fw_otp_len);
 764         if (ret) {
 765                 ath6kl_err("Failed to get OTP file %s: %d\n",
 766                            filename, ret);
 767                 return ret;
 768         }
 769
 770         return 0;
 771 }
 772
 773 static int ath6kl_fetch_testmode_file(struct ath6kl *ar)
 774 {
 775         char filename[100];
 776         int ret;
 777
 778         if (ar->testmode == 0)
 779                 return 0;
 780
 781         ath6kl_dbg(ATH6KL_DBG_BOOT, "testmode %d\n", ar->testmode);
 782
 783         if (ar->testmode == 2) {
 784                 if (ar->hw.fw.utf == NULL) {
 785                         ath6kl_warn("testmode 2 not supported\n");
 786                         return -EOPNOTSUPP;
 787                 }
 788
 789                 snprintf(filename, sizeof(filename), "%s/%s",
 790                          ar->hw.fw.dir, ar->hw.fw.utf);
 791         } else {
 792                 if (ar->hw.fw.tcmd == NULL) {
 793                         ath6kl_warn("testmode 1 not supported\n");
 794                         return -EOPNOTSUPP;
 795                 }
 796
 797                 snprintf(filename, sizeof(filename), "%s/%s",
 798                          ar->hw.fw.dir, ar->hw.fw.tcmd);
 799         }
 800
 801         set_bit(TESTMODE, &ar->flag);
 802
 803         ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 804         if (ret) {
 805                 ath6kl_err("Failed to get testmode %d firmware file %s: %d\n",
 806                            ar->testmode, filename, ret);
 807                 return ret;
 808         }
 809
 810         return 0;
 811 }
 812
 813 static int ath6kl_fetch_fw_file(struct ath6kl *ar)
 814 {
 815         char filename[100];
 816         int ret;
 817
 818         if (ar->fw != NULL)
 819                 return 0;
 820
 821         /* FIXME: remove WARN_ON() as we won't support FW API 1 for long */
 822         if (WARN_ON(ar->hw.fw.fw == NULL))
 823                 return -EINVAL;
 824
 825         snprintf(filename, sizeof(filename), "%s/%s",
 826                  ar->hw.fw.dir, ar->hw.fw.fw);
 827
 828         ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
 829         if (ret) {
 830                 ath6kl_err("Failed to get firmware file %s: %d\n",
 831                            filename, ret);
 832                 return ret;
 833         }
 834
 835         return 0;
 836 }
 837
 838 static int ath6kl_fetch_patch_file(struct ath6kl *ar)
 839 {
 840         char filename[100];
 841         int ret;
 842
 843         if (ar->fw_patch != NULL)
 844                 return 0;
 845
 846         if (ar->hw.fw.patch == NULL)
 847                 return 0;
 848
 849         snprintf(filename, sizeof(filename), "%s/%s",
 850                  ar->hw.fw.dir, ar->hw.fw.patch);
 851
 852         ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
 853                             &ar->fw_patch_len);
 854         if (ret) {
 855                 ath6kl_err("Failed to get patch file %s: %d\n",
 856                            filename, ret);
 857                 return ret;
 858         }
 859
 860         return 0;
 861 }
 862
 863 static int ath6kl_fetch_testscript_file(struct ath6kl *ar)
 864 {
 865         char filename[100];
 866         int ret;
 867
 868         if (ar->testmode != 2)
 869                 return 0;
 870
 871         if (ar->fw_testscript != NULL)
 872                 return 0;
 873
 874         if (ar->hw.fw.testscript == NULL)
 875                 return 0;
 876
 877         snprintf(filename, sizeof(filename), "%s/%s",
 878                  ar->hw.fw.dir, ar->hw.fw.testscript);
 879
 880         ret = ath6kl_get_fw(ar, filename, &ar->fw_testscript,
 881                                 &ar->fw_testscript_len);
 882         if (ret) {
 883                 ath6kl_err("Failed to get testscript file %s: %d\n",
 884                            filename, ret);
 885                 return ret;
 886         }
 887
 888         return 0;
 889 }
 890
 891 static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
 892 {
 893         int ret;
 894
 895         ret = ath6kl_fetch_otp_file(ar);
 896         if (ret)
 897                 return ret;
 898
 899         ret = ath6kl_fetch_fw_file(ar);
 900         if (ret)
 901                 return ret;
 902
 903         ret = ath6kl_fetch_patch_file(ar);
 904         if (ret)
 905                 return ret;
 906
 907         ret = ath6kl_fetch_testscript_file(ar);
 908         if (ret)
 909                 return ret;
 910
 911         return 0;
 912 }
 913
 914 static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name)
 915 {
 916         size_t magic_len, len, ie_len;
 917         const struct firmware *fw;
 918         struct ath6kl_fw_ie *hdr;
 919         char filename[100];
 920         const u8 *data;
 921         int ret, ie_id, i, index, bit;
 922         __le32 *val;
 923
 924         snprintf(filename, sizeof(filename), "%s/%s", ar->hw.fw.dir, name);
 925
 926         ret = request_firmware(&fw, filename, ar->dev);
 927         if (ret)
 928                 return ret;
 929
 930         data = fw->data;
 931         len = fw->size;
 932
 933         /* magic also includes the null byte, check that as well */
 934         magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
 935
 936         if (len < magic_len) {
 937                 ret = -EINVAL;
 938                 goto out;
 939         }
 940
 941         if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
 942                 ret = -EINVAL;
 943                 goto out;
 944         }
 945
 946         len -= magic_len;
 947         data += magic_len;
 948
 949         /* loop elements */
 950         while (len > sizeof(struct ath6kl_fw_ie)) {
 951                 /* hdr is unaligned! */
 952                 hdr = (struct ath6kl_fw_ie *) data;
 953
 954                 ie_id = le32_to_cpup(&hdr->id);
 955                 ie_len = le32_to_cpup(&hdr->len);
 956
 957                 len -= sizeof(*hdr);
 958                 data += sizeof(*hdr);
 959
 960                 if (len < ie_len) {
 961                         ret = -EINVAL;
 962                         goto out;
 963                 }
 964
 965                 switch (ie_id) {
 966                 case ATH6KL_FW_IE_FW_VERSION:
 967                         strlcpy(ar->wiphy->fw_version, data,
 968                                 sizeof(ar->wiphy->fw_version));
 969
 970                         ath6kl_dbg(ATH6KL_DBG_BOOT,
 971                                    "found fw version %s\n",
 972                                     ar->wiphy->fw_version);
 973                         break;
 974                 case ATH6KL_FW_IE_OTP_IMAGE:
 975                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
 976                                    ie_len);
 977
 978                         ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
 979
 980                         if (ar->fw_otp == NULL) {
 981                                 ret = -ENOMEM;
 982                                 goto out;
 983                         }
 984
 985                         ar->fw_otp_len = ie_len;
 986                         break;
 987                 case ATH6KL_FW_IE_FW_IMAGE:
 988                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
 989                                    ie_len);
 990
 991                         /* in testmode we already might have a fw file */
 992                         if (ar->fw != NULL)
 993                                 break;
 994
 995                         ar->fw = vmalloc(ie_len);
 996
 997                         if (ar->fw == NULL) {
 998                                 ret = -ENOMEM;
 999                                 goto out;
1000                         }
1001
1002                         memcpy(ar->fw, data, ie_len);
1003                         ar->fw_len = ie_len;
1004                         break;
1005                 case ATH6KL_FW_IE_PATCH_IMAGE:
1006                         ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
1007                                    ie_len);
1008
1009                         ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
1010
1011                         if (ar->fw_patch == NULL) {
1012                                 ret = -ENOMEM;
1013                                 goto out;
1014                         }
1015
1016                         ar->fw_patch_len = ie_len;
1017                         break;
1018                 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
1019                         val = (__le32 *) data;
1020                         ar->hw.reserved_ram_size = le32_to_cpup(val);
1021
1022                         ath6kl_dbg(ATH6KL_DBG_BOOT,
1023                                    "found reserved ram size ie 0x%d\n",
1024                                    ar->hw.reserved_ram_size);
1025                         break;
1026                 case ATH6KL_FW_IE_CAPABILITIES:
1027                         ath6kl_dbg(ATH6KL_DBG_BOOT,
1028                                    "found firmware capabilities ie (%zd B)\n",
1029                                    ie_len);
1030
1031                         for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
1032                                 index = i / 8;
1033                                 bit = i % 8;
1034
1035                                 if (index == ie_len)
1036                                         break;
1037
1038                                 if (data[index] & (1 << bit))
1039                                         __set_bit(i, ar->fw_capabilities);
1040                         }
1041
1042                         ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
1043                                         ar->fw_capabilities,
1044                                         sizeof(ar->fw_capabilities));
1045                         break;
1046                 case ATH6KL_FW_IE_PATCH_ADDR:
1047                         if (ie_len != sizeof(*val))
1048                                 break;
1049
1050                         val = (__le32 *) data;
1051                         ar->hw.dataset_patch_addr = le32_to_cpup(val);
1052
1053                         ath6kl_dbg(ATH6KL_DBG_BOOT,
1054                                    "found patch address ie 0x%x\n",
1055                                    ar->hw.dataset_patch_addr);
1056                         break;
1057                 case ATH6KL_FW_IE_BOARD_ADDR:
1058                         if (ie_len != sizeof(*val))
1059                                 break;
1060
1061                         val = (__le32 *) data;
1062                         ar->hw.board_addr = le32_to_cpup(val);
1063
1064                         ath6kl_dbg(ATH6KL_DBG_BOOT,
1065                                    "found board address ie 0x%x\n",
1066                                    ar->hw.board_addr);
1067                         break;
1068                 case ATH6KL_FW_IE_VIF_MAX:
1069                         if (ie_len != sizeof(*val))
1070                                 break;
1071
1072                         val = (__le32 *) data;
1073                         ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
1074                                             ATH6KL_VIF_MAX);
1075
1076                         if (ar->vif_max > 1 && !ar->p2p)
1077                                 ar->max_norm_iface = 2;
1078
1079                         ath6kl_dbg(ATH6KL_DBG_BOOT,
1080                                    "found vif max ie %d\n", ar->vif_max);
1081                         break;
1082                 default:
1083                         ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
1084                                    le32_to_cpup(&hdr->id));
1085                         break;
1086                 }
1087
1088                 len -= ie_len;
1089                 data += ie_len;
1090         };
1091
1092         ret = 0;
1093 out:
1094         release_firmware(fw);
1095
1096         return ret;
1097 }
1098
1099 int ath6kl_init_fetch_firmwares(struct ath6kl *ar)
1100 {
1101         int ret;
1102
1103         ret = ath6kl_fetch_board_file(ar);
1104         if (ret)
1105                 return ret;
1106
1107         ret = ath6kl_fetch_testmode_file(ar);
1108         if (ret)
1109                 return ret;
1110
1111         ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API4_FILE);
1112         if (ret == 0) {
1113                 ar->fw_api = 4;
1114                 goto out;
1115         }
1116
1117         ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API3_FILE);
1118         if (ret == 0) {
1119                 ar->fw_api = 3;
1120                 goto out;
1121         }
1122
1123         ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API2_FILE);
1124         if (ret == 0) {
1125                 ar->fw_api = 2;
1126                 goto out;
1127         }
1128
1129         ret = ath6kl_fetch_fw_api1(ar);
1130         if (ret)
1131                 return ret;
1132
1133         ar->fw_api = 1;
1134
1135 out:
1136         ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api %d\n", ar->fw_api);
1137
1138         return 0;
1139 }
1140
1141 static int ath6kl_upload_board_file(struct ath6kl *ar)
1142 {
1143         u32 board_address, board_ext_address, param;
1144         u32 board_data_size, board_ext_data_size;
1145         int ret;
1146
1147         if (WARN_ON(ar->fw_board == NULL))
1148                 return -ENOENT;
1149
1150         /*
1151          * Determine where in Target RAM to write Board Data.
1152          * For AR6004, host determine Target RAM address for
1153          * writing board data.
1154          */
1155         if (ar->hw.board_addr != 0) {
1156                 board_address = ar->hw.board_addr;
1157                 ath6kl_bmi_write_hi32(ar, hi_board_data,
1158                                       board_address);
1159         } else {
1160                 ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address);
1161         }
1162
1163         /* determine where in target ram to write extended board data */
1164         ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address);
1165
1166         if (ar->target_type == TARGET_TYPE_AR6003 &&
1167             board_ext_address == 0) {
1168                 ath6kl_err("Failed to get board file target address.\n");
1169                 return -EINVAL;
1170         }
1171
1172         switch (ar->target_type) {
1173         case TARGET_TYPE_AR6003:
1174                 board_data_size = AR6003_BOARD_DATA_SZ;
1175                 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1176                 if (ar->fw_board_len > (board_data_size + board_ext_data_size))
1177                         board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ_V2;
1178                 break;
1179         case TARGET_TYPE_AR6004:
1180                 board_data_size = AR6004_BOARD_DATA_SZ;
1181                 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1182                 break;
1183         default:
1184                 WARN_ON(1);
1185                 return -EINVAL;
1186                 break;
1187         }
1188
1189         if (board_ext_address &&
1190             ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1191
1192                 /* write extended board data */
1193                 ath6kl_dbg(ATH6KL_DBG_BOOT,
1194                            "writing extended board data to 0x%x (%d B)\n",
1195                            board_ext_address, board_ext_data_size);
1196
1197                 ret = ath6kl_bmi_write(ar, board_ext_address,
1198                                        ar->fw_board + board_data_size,
1199                                        board_ext_data_size);
1200                 if (ret) {
1201                         ath6kl_err("Failed to write extended board data: %d\n",
1202                                    ret);
1203                         return ret;
1204                 }
1205
1206                 /* record that extended board data is initialized */
1207                 param = (board_ext_data_size << 16) | 1;
1208
1209                 ath6kl_bmi_write_hi32(ar, hi_board_ext_data_config, param);
1210         }
1211
1212         if (ar->fw_board_len < board_data_size) {
1213                 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1214                 ret = -EINVAL;
1215                 return ret;
1216         }
1217
1218         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1219                    board_address, board_data_size);
1220
1221         ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1222                                board_data_size);
1223
1224         if (ret) {
1225                 ath6kl_err("Board file bmi write failed: %d\n", ret);
1226                 return ret;
1227         }
1228
1229         /* record the fact that Board Data IS initialized */
1230         ath6kl_bmi_write_hi32(ar, hi_board_data_initialized, 1);
1231
1232         return ret;
1233 }
1234
1235 static int ath6kl_upload_otp(struct ath6kl *ar)
1236 {
1237         u32 address, param;
1238         bool from_hw = false;
1239         int ret;
1240
1241         if (ar->fw_otp == NULL)
1242                 return 0;
1243
1244         address = ar->hw.app_load_addr;
1245
1246         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1247                    ar->fw_otp_len);
1248
1249         ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1250                                        ar->fw_otp_len);
1251         if (ret) {
1252                 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1253                 return ret;
1254         }
1255
1256         /* read firmware start address */
1257         ret = ath6kl_bmi_read_hi32(ar, hi_app_start, &address);
1258
1259         if (ret) {
1260                 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1261                 return ret;
1262         }
1263
1264         if (ar->hw.app_start_override_addr == 0) {
1265                 ar->hw.app_start_override_addr = address;
1266                 from_hw = true;
1267         }
1268
1269         ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1270                    from_hw ? " (from hw)" : "",
1271                    ar->hw.app_start_override_addr);
1272
1273         /* execute the OTP code */
1274         ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1275                    ar->hw.app_start_override_addr);
1276         param = 0;
1277         ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1278
1279         return ret;
1280 }
1281
1282 static int ath6kl_upload_firmware(struct ath6kl *ar)
1283 {
1284         u32 address;
1285         int ret;
1286
1287         if (WARN_ON(ar->fw == NULL))
1288                 return 0;
1289
1290         address = ar->hw.app_load_addr;
1291
1292         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1293                    address, ar->fw_len);
1294
1295         ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1296
1297         if (ret) {
1298                 ath6kl_err("Failed to write firmware: %d\n", ret);
1299                 return ret;
1300         }
1301
1302         /*
1303          * Set starting address for firmware
1304          * Don't need to setup app_start override addr on AR6004
1305          */
1306         if (ar->target_type != TARGET_TYPE_AR6004) {
1307                 address = ar->hw.app_start_override_addr;
1308                 ath6kl_bmi_set_app_start(ar, address);
1309         }
1310         return ret;
1311 }
1312
1313 static int ath6kl_upload_patch(struct ath6kl *ar)
1314 {
1315         u32 address;
1316         int ret;
1317
1318         if (ar->fw_patch == NULL)
1319                 return 0;
1320
1321         address = ar->hw.dataset_patch_addr;
1322
1323         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1324                    address, ar->fw_patch_len);
1325
1326         ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1327         if (ret) {
1328                 ath6kl_err("Failed to write patch file: %d\n", ret);
1329                 return ret;
1330         }
1331
1332         ath6kl_bmi_write_hi32(ar, hi_dset_list_head, address);
1333
1334         return 0;
1335 }
1336
1337 static int ath6kl_upload_testscript(struct ath6kl *ar)
1338 {
1339         u32 address;
1340         int ret;
1341
1342         if (ar->testmode != 2)
1343                 return 0;
1344
1345         if (ar->fw_testscript == NULL)
1346                 return 0;
1347
1348         address = ar->hw.testscript_addr;
1349
1350         ath6kl_dbg(ATH6KL_DBG_BOOT, "writing testscript to 0x%x (%zd B)\n",
1351                    address, ar->fw_testscript_len);
1352
1353         ret = ath6kl_bmi_write(ar, address, ar->fw_testscript,
1354                 ar->fw_testscript_len);
1355         if (ret) {
1356                 ath6kl_err("Failed to write testscript file: %d\n", ret);
1357                 return ret;
1358         }
1359
1360         ath6kl_bmi_write_hi32(ar, hi_ota_testscript, address);
1361         ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz, 4096);
1362         ath6kl_bmi_write_hi32(ar, hi_test_apps_related, 1);
1363
1364         return 0;
1365 }
1366
1367 static int ath6kl_init_upload(struct ath6kl *ar)
1368 {
1369         u32 param, options, sleep, address;
1370         int status = 0;
1371
1372         if (ar->target_type != TARGET_TYPE_AR6003 &&
1373             ar->target_type != TARGET_TYPE_AR6004)
1374                 return -EINVAL;
1375
1376         /* temporarily disable system sleep */
1377         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1378         status = ath6kl_bmi_reg_read(ar, address, &param);
1379         if (status)
1380                 return status;
1381
1382         options = param;
1383
1384         param |= ATH6KL_OPTION_SLEEP_DISABLE;
1385         status = ath6kl_bmi_reg_write(ar, address, param);
1386         if (status)
1387                 return status;
1388
1389         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1390         status = ath6kl_bmi_reg_read(ar, address, &param);
1391         if (status)
1392                 return status;
1393
1394         sleep = param;
1395
1396         param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1397         status = ath6kl_bmi_reg_write(ar, address, param);
1398         if (status)
1399                 return status;
1400
1401         ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1402                    options, sleep);
1403
1404         /* program analog PLL register */
1405         /* no need to control 40/44MHz clock on AR6004 */
1406         if (ar->target_type != TARGET_TYPE_AR6004) {
1407                 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1408                                               0xF9104001);
1409
1410                 if (status)
1411                         return status;
1412
1413                 /* Run at 80/88MHz by default */
1414                 param = SM(CPU_CLOCK_STANDARD, 1);
1415
1416                 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1417                 status = ath6kl_bmi_reg_write(ar, address, param);
1418                 if (status)
1419                         return status;
1420         }
1421
1422         param = 0;
1423         address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1424         param = SM(LPO_CAL_ENABLE, 1);
1425         status = ath6kl_bmi_reg_write(ar, address, param);
1426         if (status)
1427                 return status;
1428
1429         /* WAR to avoid SDIO CRC err */
1430         if (ar->version.target_ver == AR6003_HW_2_0_VERSION ||
1431             ar->version.target_ver == AR6003_HW_2_1_1_VERSION) {
1432                 ath6kl_err("temporary war to avoid sdio crc error\n");
1433
1434                 param = 0x28;
1435                 address = GPIO_BASE_ADDRESS + GPIO_PIN9_ADDRESS;
1436                 status = ath6kl_bmi_reg_write(ar, address, param);
1437                 if (status)
1438                         return status;
1439
1440                 param = 0x20;
1441
1442                 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1443                 status = ath6kl_bmi_reg_write(ar, address, param);
1444                 if (status)
1445                         return status;
1446
1447                 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1448                 status = ath6kl_bmi_reg_write(ar, address, param);
1449                 if (status)
1450                         return status;
1451
1452                 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1453                 status = ath6kl_bmi_reg_write(ar, address, param);
1454                 if (status)
1455                         return status;
1456
1457                 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1458                 status = ath6kl_bmi_reg_write(ar, address, param);
1459                 if (status)
1460                         return status;
1461         }
1462
1463         /* write EEPROM data to Target RAM */
1464         status = ath6kl_upload_board_file(ar);
1465         if (status)
1466                 return status;
1467
1468         /* transfer One time Programmable data */
1469         status = ath6kl_upload_otp(ar);
1470         if (status)
1471                 return status;
1472
1473         /* Download Target firmware */
1474         status = ath6kl_upload_firmware(ar);
1475         if (status)
1476                 return status;
1477
1478         status = ath6kl_upload_patch(ar);
1479         if (status)
1480                 return status;
1481
1482         /* Download the test script */
1483         status = ath6kl_upload_testscript(ar);
1484         if (status)
1485                 return status;
1486
1487         /* Restore system sleep */
1488         address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1489         status = ath6kl_bmi_reg_write(ar, address, sleep);
1490         if (status)
1491                 return status;
1492
1493         address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1494         param = options | 0x20;
1495         status = ath6kl_bmi_reg_write(ar, address, param);
1496         if (status)
1497                 return status;
1498
1499         return status;
1500 }
1501
1502 int ath6kl_init_hw_params(struct ath6kl *ar)
1503 {
1504         const struct ath6kl_hw *uninitialized_var(hw);
1505         int i;
1506
1507         for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1508                 hw = &hw_list[i];
1509
1510                 if (hw->id == ar->version.target_ver)
1511                         break;
1512         }
1513
1514         if (i == ARRAY_SIZE(hw_list)) {
1515                 ath6kl_err("Unsupported hardware version: 0x%x\n",
1516                            ar->version.target_ver);
1517                 return -EINVAL;
1518         }
1519
1520         ar->hw = *hw;
1521
1522         ath6kl_dbg(ATH6KL_DBG_BOOT,
1523                    "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1524                    ar->version.target_ver, ar->target_type,
1525                    ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1526         ath6kl_dbg(ATH6KL_DBG_BOOT,
1527                    "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1528                    ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1529                    ar->hw.reserved_ram_size);
1530         ath6kl_dbg(ATH6KL_DBG_BOOT,
1531                    "refclk_hz %d uarttx_pin %d",
1532                    ar->hw.refclk_hz, ar->hw.uarttx_pin);
1533
1534         return 0;
1535 }
1536
1537 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1538 {
1539         switch (type) {
1540         case ATH6KL_HIF_TYPE_SDIO:
1541                 return "sdio";
1542         case ATH6KL_HIF_TYPE_USB:
1543                 return "usb";
1544         }
1545
1546         return NULL;
1547 }
1548
1549 static int __ath6kl_init_hw_start(struct ath6kl *ar)
1550 {
1551         long timeleft;
1552         int ret, i;
1553
1554         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1555
1556         ret = ath6kl_hif_power_on(ar);
1557         if (ret)
1558                 return ret;
1559
1560         ret = ath6kl_configure_target(ar);
1561         if (ret)
1562                 goto err_power_off;
1563
1564         ret = ath6kl_init_upload(ar);
1565         if (ret)
1566                 goto err_power_off;
1567
1568         /* Do we need to finish the BMI phase */
1569         /* FIXME: return error from ath6kl_bmi_done() */
1570         if (ath6kl_bmi_done(ar)) {
1571                 ret = -EIO;
1572                 goto err_power_off;
1573         }
1574
1575         /*
1576          * The reason we have to wait for the target here is that the
1577          * driver layer has to init BMI in order to set the host block
1578          * size.
1579          */
1580         if (ath6kl_htc_wait_target(ar->htc_target)) {
1581                 ret = -EIO;
1582                 goto err_power_off;
1583         }
1584
1585         if (ath6kl_init_service_ep(ar)) {
1586                 ret = -EIO;
1587                 goto err_cleanup_scatter;
1588         }
1589
1590         /* setup credit distribution */
1591         ath6kl_htc_credit_setup(ar->htc_target, &ar->credit_state_info);
1592
1593         /* start HTC */
1594         ret = ath6kl_htc_start(ar->htc_target);
1595         if (ret) {
1596                 /* FIXME: call this */
1597                 ath6kl_cookie_cleanup(ar);
1598                 goto err_cleanup_scatter;
1599         }
1600
1601         /* Wait for Wmi event to be ready */
1602         timeleft = wait_event_interruptible_timeout(ar->event_wq,
1603                                                     test_bit(WMI_READY,
1604                                                              &ar->flag),
1605                                                     WMI_TIMEOUT);
1606
1607         ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1608
1609
1610         if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1611                 ath6kl_info("%s %s fw %s api %d%s\n",
1612                             ar->hw.name,
1613                             ath6kl_init_get_hif_name(ar->hif_type),
1614                             ar->wiphy->fw_version,
1615                             ar->fw_api,
1616                             test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1617         }
1618
1619         if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1620                 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1621                            ATH6KL_ABI_VERSION, ar->version.abi_ver);
1622                 ret = -EIO;
1623                 goto err_htc_stop;
1624         }
1625
1626         if (!timeleft || signal_pending(current)) {
1627                 ath6kl_err("wmi is not ready or wait was interrupted\n");
1628                 ret = -EIO;
1629                 goto err_htc_stop;
1630         }
1631
1632         ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1633
1634         /* communicate the wmi protocol verision to the target */
1635         /* FIXME: return error */
1636         if ((ath6kl_set_host_app_area(ar)) != 0)
1637                 ath6kl_err("unable to set the host app area\n");
1638
1639         for (i = 0; i < ar->vif_max; i++) {
1640                 ret = ath6kl_target_config_wlan_params(ar, i);
1641                 if (ret)
1642                         goto err_htc_stop;
1643         }
1644
1645         return 0;
1646
1647 err_htc_stop:
1648         ath6kl_htc_stop(ar->htc_target);
1649 err_cleanup_scatter:
1650         ath6kl_hif_cleanup_scatter(ar);
1651 err_power_off:
1652         ath6kl_hif_power_off(ar);
1653
1654         return ret;
1655 }
1656
1657 int ath6kl_init_hw_start(struct ath6kl *ar)
1658 {
1659         int err;
1660
1661         err = __ath6kl_init_hw_start(ar);
1662         if (err)
1663                 return err;
1664         ar->state = ATH6KL_STATE_ON;
1665         return 0;
1666 }
1667
1668 static int __ath6kl_init_hw_stop(struct ath6kl *ar)
1669 {
1670         int ret;
1671
1672         ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1673
1674         ath6kl_htc_stop(ar->htc_target);
1675
1676         ath6kl_hif_stop(ar);
1677
1678         ath6kl_bmi_reset(ar);
1679
1680         ret = ath6kl_hif_power_off(ar);
1681         if (ret)
1682                 ath6kl_warn("failed to power off hif: %d\n", ret);
1683
1684         return 0;
1685 }
1686
1687 int ath6kl_init_hw_stop(struct ath6kl *ar)
1688 {
1689         int err;
1690
1691         err = __ath6kl_init_hw_stop(ar);
1692         if (err)
1693                 return err;
1694         ar->state = ATH6KL_STATE_OFF;
1695         return 0;
1696 }
1697
1698 void ath6kl_init_hw_restart(struct ath6kl *ar)
1699 {
1700         clear_bit(WMI_READY, &ar->flag);
1701
1702         ath6kl_cfg80211_stop_all(ar);
1703
1704         if (__ath6kl_init_hw_stop(ar)) {
1705                 ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to stop during fw error recovery\n");
1706                 return;
1707         }
1708
1709         if (__ath6kl_init_hw_start(ar)) {
1710                 ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to restart during fw error recovery\n");
1711                 return;
1712         }
1713 }
1714
1715 /* FIXME: move this to cfg80211.c and rename to ath6kl_cfg80211_vif_stop() */
1716 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1717 {
1718         static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1719         bool discon_issued;
1720
1721         netif_stop_queue(vif->ndev);
1722
1723         clear_bit(WLAN_ENABLED, &vif->flags);
1724
1725         if (wmi_ready) {
1726                 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1727                                 test_bit(CONNECT_PEND, &vif->flags);
1728                 ath6kl_disconnect(vif);
1729                 del_timer(&vif->disconnect_timer);
1730
1731                 if (discon_issued)
1732                         ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1733                                                 (vif->nw_type & AP_NETWORK) ?
1734                                                 bcast_mac : vif->bssid,
1735                                                 0, NULL, 0);
1736         }
1737
1738         if (vif->scan_req) {
1739                 cfg80211_scan_done(vif->scan_req, true);
1740                 vif->scan_req = NULL;
1741         }
1742
1743         /* need to clean up enhanced bmiss detection fw state */
1744         ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
1745 }
1746
1747 void ath6kl_stop_txrx(struct ath6kl *ar)
1748 {
1749         struct ath6kl_vif *vif, *tmp_vif;
1750         int i;
1751
1752         set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1753
1754         if (down_interruptible(&ar->sem)) {
1755                 ath6kl_err("down_interruptible failed\n");
1756                 return;
1757         }
1758
1759         for (i = 0; i < AP_MAX_NUM_STA; i++)
1760                 aggr_reset_state(ar->sta_list[i].aggr_conn);
1761
1762         spin_lock_bh(&ar->list_lock);
1763         list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1764                 list_del(&vif->list);
1765                 spin_unlock_bh(&ar->list_lock);
1766                 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1767                 rtnl_lock();
1768                 ath6kl_cfg80211_vif_cleanup(vif);
1769                 rtnl_unlock();
1770                 spin_lock_bh(&ar->list_lock);
1771         }
1772         spin_unlock_bh(&ar->list_lock);
1773
1774         clear_bit(WMI_READY, &ar->flag);
1775
1776         /*
1777          * After wmi_shudown all WMI events will be dropped. We
1778          * need to cleanup the buffers allocated in AP mode and
1779          * give disconnect notification to stack, which usually
1780          * happens in the disconnect_event. Simulate the disconnect
1781          * event by calling the function directly. Sometimes
1782          * disconnect_event will be received when the debug logs
1783          * are collected.
1784          */
1785         ath6kl_wmi_shutdown(ar->wmi);
1786
1787         clear_bit(WMI_ENABLED, &ar->flag);
1788         if (ar->htc_target) {
1789                 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1790                 ath6kl_htc_stop(ar->htc_target);
1791         }
1792
1793         /*
1794          * Try to reset the device if we can. The driver may have been
1795          * configure NOT to reset the target during a debug session.
1796          */
1797         ath6kl_dbg(ATH6KL_DBG_TRC,
1798                    "attempting to reset target on instance destroy\n");
1799         ath6kl_reset_device(ar, ar->target_type, true, true);
1800
1801         clear_bit(WLAN_ENABLED, &ar->flag);
1802
1803         up(&ar->sem);
1804 }
1805 EXPORT_SYMBOL(ath6kl_stop_txrx);