1 2 /* 3 * Copyright (c) 2011 Atheros Communications Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <linux/of.h> 19 #include <linux/mmc/sdio_func.h> 20 #include "core.h" 21 #include "cfg80211.h" 22 #include "target.h" 23 #include "debug.h" 24 #include "hif-ops.h" 25 26 unsigned int debug_mask; 27 static unsigned int testmode; 28 29 module_param(debug_mask, uint, 0644); 30 module_param(testmode, uint, 0644); 31 32 /* 33 * Include definitions here that can be used to tune the WLAN module 34 * behavior. Different customers can tune the behavior as per their needs, 35 * here. 36 */ 37 38 /* 39 * This configuration item enable/disable keepalive support. 40 * Keepalive support: In the absence of any data traffic to AP, null 41 * frames will be sent to the AP at periodic interval, to keep the association 42 * active. This configuration item defines the periodic interval. 43 * Use value of zero to disable keepalive support 44 * Default: 60 seconds 45 */ 46 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60 47 48 /* 49 * This configuration item sets the value of disconnect timeout 50 * Firmware delays sending the disconnec event to the host for this 51 * timeout after is gets disconnected from the current AP. 52 * If the firmware successly roams within the disconnect timeout 53 * it sends a new connect event 54 */ 55 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10 56 57 #define CONFIG_AR600x_DEBUG_UART_TX_PIN 8 58 59 #define ATH6KL_DATA_OFFSET 64 60 struct sk_buff *ath6kl_buf_alloc(int size) 61 { 62 struct sk_buff *skb; 63 u16 reserved; 64 65 /* Add chacheline space at front and back of buffer */ 66 reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET + 67 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES; 68 skb = dev_alloc_skb(size + reserved); 69 70 if (skb) 71 skb_reserve(skb, reserved - L1_CACHE_BYTES); 72 return skb; 73 } 74 75 void ath6kl_init_profile_info(struct ath6kl *ar) 76 { 77 ar->ssid_len = 0; 78 memset(ar->ssid, 0, sizeof(ar->ssid)); 79 80 ar->dot11_auth_mode = OPEN_AUTH; 81 ar->auth_mode = NONE_AUTH; 82 ar->prwise_crypto = NONE_CRYPT; 83 ar->prwise_crypto_len = 0; 84 ar->grp_crypto = NONE_CRYPT; 85 ar->grp_crypto_len = 0; 86 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); 87 memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); 88 memset(ar->bssid, 0, sizeof(ar->bssid)); 89 ar->bss_ch = 0; 90 ar->nw_type = ar->next_mode = INFRA_NETWORK; 91 } 92 93 static u8 ath6kl_get_fw_iftype(struct ath6kl *ar) 94 { 95 switch (ar->nw_type) { 96 case INFRA_NETWORK: 97 return HI_OPTION_FW_MODE_BSS_STA; 98 case ADHOC_NETWORK: 99 return HI_OPTION_FW_MODE_IBSS; 100 case AP_NETWORK: 101 return HI_OPTION_FW_MODE_AP; 102 default: 103 ath6kl_err("Unsupported interface type :%d\n", ar->nw_type); 104 return 0xff; 105 } 106 } 107 108 static int ath6kl_set_host_app_area(struct ath6kl *ar) 109 { 110 u32 address, data; 111 struct host_app_area host_app_area; 112 113 /* Fetch the address of the host_app_area_s 114 * instance in the host interest area */ 115 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest)); 116 address = TARG_VTOP(ar->target_type, address); 117 118 if (ath6kl_diag_read32(ar, address, &data)) 119 return -EIO; 120 121 address = TARG_VTOP(ar->target_type, data); 122 host_app_area.wmi_protocol_ver = WMI_PROTOCOL_VERSION; 123 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area, 124 sizeof(struct host_app_area))) 125 return -EIO; 126 127 return 0; 128 } 129 130 static inline void set_ac2_ep_map(struct ath6kl *ar, 131 u8 ac, 132 enum htc_endpoint_id ep) 133 { 134 ar->ac2ep_map[ac] = ep; 135 ar->ep2ac_map[ep] = ac; 136 } 137 138 /* connect to a service */ 139 static int ath6kl_connectservice(struct ath6kl *ar, 140 struct htc_service_connect_req *con_req, 141 char *desc) 142 { 143 int status; 144 struct htc_service_connect_resp response; 145 146 memset(&response, 0, sizeof(response)); 147 148 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response); 149 if (status) { 150 ath6kl_err("failed to connect to %s service status:%d\n", 151 desc, status); 152 return status; 153 } 154 155 switch (con_req->svc_id) { 156 case WMI_CONTROL_SVC: 157 if (test_bit(WMI_ENABLED, &ar->flag)) 158 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint); 159 ar->ctrl_ep = response.endpoint; 160 break; 161 case WMI_DATA_BE_SVC: 162 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint); 163 break; 164 case WMI_DATA_BK_SVC: 165 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint); 166 break; 167 case WMI_DATA_VI_SVC: 168 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint); 169 break; 170 case WMI_DATA_VO_SVC: 171 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint); 172 break; 173 default: 174 ath6kl_err("service id is not mapped %d\n", con_req->svc_id); 175 return -EINVAL; 176 } 177 178 return 0; 179 } 180 181 static int ath6kl_init_service_ep(struct ath6kl *ar) 182 { 183 struct htc_service_connect_req connect; 184 185 memset(&connect, 0, sizeof(connect)); 186 187 /* these fields are the same for all service endpoints */ 188 connect.ep_cb.rx = ath6kl_rx; 189 connect.ep_cb.rx_refill = ath6kl_rx_refill; 190 connect.ep_cb.tx_full = ath6kl_tx_queue_full; 191 192 /* 193 * Set the max queue depth so that our ath6kl_tx_queue_full handler 194 * gets called. 195 */ 196 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH; 197 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4; 198 if (!connect.ep_cb.rx_refill_thresh) 199 connect.ep_cb.rx_refill_thresh++; 200 201 /* connect to control service */ 202 connect.svc_id = WMI_CONTROL_SVC; 203 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL")) 204 return -EIO; 205 206 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN; 207 208 /* 209 * Limit the HTC message size on the send path, although e can 210 * receive A-MSDU frames of 4K, we will only send ethernet-sized 211 * (802.3) frames on the send path. 212 */ 213 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH; 214 215 /* 216 * To reduce the amount of committed memory for larger A_MSDU 217 * frames, use the recv-alloc threshold mechanism for larger 218 * packets. 219 */ 220 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE; 221 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf; 222 223 /* 224 * For the remaining data services set the connection flag to 225 * reduce dribbling, if configured to do so. 226 */ 227 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB; 228 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK; 229 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF; 230 231 connect.svc_id = WMI_DATA_BE_SVC; 232 233 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE")) 234 return -EIO; 235 236 /* connect to back-ground map this to WMI LOW_PRI */ 237 connect.svc_id = WMI_DATA_BK_SVC; 238 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK")) 239 return -EIO; 240 241 /* connect to Video service, map this to to HI PRI */ 242 connect.svc_id = WMI_DATA_VI_SVC; 243 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI")) 244 return -EIO; 245 246 /* 247 * Connect to VO service, this is currently not mapped to a WMI 248 * priority stream due to historical reasons. WMI originally 249 * defined 3 priorities over 3 mailboxes We can change this when 250 * WMI is reworked so that priorities are not dependent on 251 * mailboxes. 252 */ 253 connect.svc_id = WMI_DATA_VO_SVC; 254 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO")) 255 return -EIO; 256 257 return 0; 258 } 259 260 static void ath6kl_init_control_info(struct ath6kl *ar) 261 { 262 u8 ctr; 263 264 clear_bit(WMI_ENABLED, &ar->flag); 265 ath6kl_init_profile_info(ar); 266 ar->def_txkey_index = 0; 267 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); 268 ar->ch_hint = 0; 269 ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL; 270 ar->listen_intvl_b = 0; 271 ar->tx_pwr = 0; 272 clear_bit(SKIP_SCAN, &ar->flag); 273 set_bit(WMM_ENABLED, &ar->flag); 274 ar->intra_bss = 1; 275 memset(&ar->sc_params, 0, sizeof(ar->sc_params)); 276 ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT; 277 ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS; 278 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 279 280 memset((u8 *)ar->sta_list, 0, 281 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 282 283 spin_lock_init(&ar->mcastpsq_lock); 284 285 /* Init the PS queues */ 286 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 287 spin_lock_init(&ar->sta_list[ctr].psq_lock); 288 skb_queue_head_init(&ar->sta_list[ctr].psq); 289 } 290 291 skb_queue_head_init(&ar->mcastpsq); 292 293 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 294 } 295 296 /* 297 * Set HTC/Mbox operational parameters, this can only be called when the 298 * target is in the BMI phase. 299 */ 300 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val, 301 u8 htc_ctrl_buf) 302 { 303 int status; 304 u32 blk_size; 305 306 blk_size = ar->mbox_info.block_size; 307 308 if (htc_ctrl_buf) 309 blk_size |= ((u32)htc_ctrl_buf) << 16; 310 311 /* set the host interest area for the block size */ 312 status = ath6kl_bmi_write(ar, 313 ath6kl_get_hi_item_addr(ar, 314 HI_ITEM(hi_mbox_io_block_sz)), 315 (u8 *)&blk_size, 316 4); 317 if (status) { 318 ath6kl_err("bmi_write_memory for IO block size failed\n"); 319 goto out; 320 } 321 322 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n", 323 blk_size, 324 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz))); 325 326 if (mbox_isr_yield_val) { 327 /* set the host interest area for the mbox ISR yield limit */ 328 status = ath6kl_bmi_write(ar, 329 ath6kl_get_hi_item_addr(ar, 330 HI_ITEM(hi_mbox_isr_yield_limit)), 331 (u8 *)&mbox_isr_yield_val, 332 4); 333 if (status) { 334 ath6kl_err("bmi_write_memory for yield limit failed\n"); 335 goto out; 336 } 337 } 338 339 out: 340 return status; 341 } 342 343 #define REG_DUMP_COUNT_AR6003 60 344 #define REGISTER_DUMP_LEN_MAX 60 345 346 static void ath6kl_dump_target_assert_info(struct ath6kl *ar) 347 { 348 u32 address; 349 u32 regdump_loc = 0; 350 int status; 351 u32 regdump_val[REGISTER_DUMP_LEN_MAX]; 352 u32 i; 353 354 if (ar->target_type != TARGET_TYPE_AR6003) 355 return; 356 357 /* the reg dump pointer is copied to the host interest area */ 358 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state)); 359 address = TARG_VTOP(ar->target_type, address); 360 361 /* read RAM location through diagnostic window */ 362 status = ath6kl_diag_read32(ar, address, ®dump_loc); 363 364 if (status || !regdump_loc) { 365 ath6kl_err("failed to get ptr to register dump area\n"); 366 return; 367 } 368 369 ath6kl_dbg(ATH6KL_DBG_TRC, "location of register dump data: 0x%X\n", 370 regdump_loc); 371 regdump_loc = TARG_VTOP(ar->target_type, regdump_loc); 372 373 /* fetch register dump data */ 374 status = ath6kl_diag_read(ar, regdump_loc, (u8 *)®dump_val[0], 375 REG_DUMP_COUNT_AR6003 * (sizeof(u32))); 376 377 if (status) { 378 ath6kl_err("failed to get register dump\n"); 379 return; 380 } 381 ath6kl_dbg(ATH6KL_DBG_TRC, "Register Dump:\n"); 382 383 for (i = 0; i < REG_DUMP_COUNT_AR6003; i++) 384 ath6kl_dbg(ATH6KL_DBG_TRC, " %d : 0x%8.8X\n", 385 i, regdump_val[i]); 386 387 } 388 389 void ath6kl_target_failure(struct ath6kl *ar) 390 { 391 ath6kl_err("target asserted\n"); 392 393 /* try dumping target assertion information (if any) */ 394 ath6kl_dump_target_assert_info(ar); 395 396 } 397 398 static int ath6kl_target_config_wlan_params(struct ath6kl *ar) 399 { 400 int status = 0; 401 int ret; 402 403 /* 404 * Configure the device for rx dot11 header rules. "0,0" are the 405 * default values. Required if checksum offload is needed. Set 406 * RxMetaVersion to 2. 407 */ 408 if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, 409 ar->rx_meta_ver, 0, 0)) { 410 ath6kl_err("unable to set the rx frame format\n"); 411 status = -EIO; 412 } 413 414 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) 415 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, 0, 1, 0, 0, 1, 416 IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) { 417 ath6kl_err("unable to set power save fail event policy\n"); 418 status = -EIO; 419 } 420 421 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) 422 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, 0, 423 WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) { 424 ath6kl_err("unable to set barker preamble policy\n"); 425 status = -EIO; 426 } 427 428 if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, 429 WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) { 430 ath6kl_err("unable to set keep alive interval\n"); 431 status = -EIO; 432 } 433 434 if (ath6kl_wmi_disctimeout_cmd(ar->wmi, 435 WLAN_CONFIG_DISCONNECT_TIMEOUT)) { 436 ath6kl_err("unable to set disconnect timeout\n"); 437 status = -EIO; 438 } 439 440 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) 441 if (ath6kl_wmi_set_wmm_txop(ar->wmi, WMI_TXOP_DISABLED)) { 442 ath6kl_err("unable to set txop bursting\n"); 443 status = -EIO; 444 } 445 446 if (ar->p2p) { 447 ret = ath6kl_wmi_info_req_cmd(ar->wmi, 448 P2P_FLAG_CAPABILITIES_REQ | 449 P2P_FLAG_MACADDR_REQ | 450 P2P_FLAG_HMODEL_REQ); 451 if (ret) { 452 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P " 453 "capabilities (%d) - assuming P2P not " 454 "supported\n", ret); 455 ar->p2p = 0; 456 } 457 } 458 459 if (ar->p2p) { 460 /* Enable Probe Request reporting for P2P */ 461 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, true); 462 if (ret) { 463 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe " 464 "Request reporting (%d)\n", ret); 465 } 466 } 467 468 return status; 469 } 470 471 int ath6kl_configure_target(struct ath6kl *ar) 472 { 473 u32 param, ram_reserved_size; 474 u8 fw_iftype; 475 476 fw_iftype = ath6kl_get_fw_iftype(ar); 477 if (fw_iftype == 0xff) 478 return -EINVAL; 479 480 /* Tell target which HTC version it is used*/ 481 param = HTC_PROTOCOL_VERSION; 482 if (ath6kl_bmi_write(ar, 483 ath6kl_get_hi_item_addr(ar, 484 HI_ITEM(hi_app_host_interest)), 485 (u8 *)¶m, 4) != 0) { 486 ath6kl_err("bmi_write_memory for htc version failed\n"); 487 return -EIO; 488 } 489 490 /* set the firmware mode to STA/IBSS/AP */ 491 param = 0; 492 493 if (ath6kl_bmi_read(ar, 494 ath6kl_get_hi_item_addr(ar, 495 HI_ITEM(hi_option_flag)), 496 (u8 *)¶m, 4) != 0) { 497 ath6kl_err("bmi_read_memory for setting fwmode failed\n"); 498 return -EIO; 499 } 500 501 param |= (1 << HI_OPTION_NUM_DEV_SHIFT); 502 param |= (fw_iftype << HI_OPTION_FW_MODE_SHIFT); 503 if (ar->p2p && fw_iftype == HI_OPTION_FW_MODE_BSS_STA) { 504 param |= HI_OPTION_FW_SUBMODE_P2PDEV << 505 HI_OPTION_FW_SUBMODE_SHIFT; 506 } 507 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT); 508 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT); 509 510 if (ath6kl_bmi_write(ar, 511 ath6kl_get_hi_item_addr(ar, 512 HI_ITEM(hi_option_flag)), 513 (u8 *)¶m, 514 4) != 0) { 515 ath6kl_err("bmi_write_memory for setting fwmode failed\n"); 516 return -EIO; 517 } 518 519 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n"); 520 521 /* 522 * Hardcode the address use for the extended board data 523 * Ideally this should be pre-allocate by the OS at boot time 524 * But since it is a new feature and board data is loaded 525 * at init time, we have to workaround this from host. 526 * It is difficult to patch the firmware boot code, 527 * but possible in theory. 528 */ 529 530 param = ar->hw.board_ext_data_addr; 531 ram_reserved_size = ar->hw.reserved_ram_size; 532 533 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar, 534 HI_ITEM(hi_board_ext_data)), 535 (u8 *)¶m, 4) != 0) { 536 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n"); 537 return -EIO; 538 } 539 540 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar, 541 HI_ITEM(hi_end_ram_reserve_sz)), 542 (u8 *)&ram_reserved_size, 4) != 0) { 543 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n"); 544 return -EIO; 545 } 546 547 /* set the block size for the target */ 548 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0)) 549 /* use default number of control buffers */ 550 return -EIO; 551 552 return 0; 553 } 554 555 struct ath6kl *ath6kl_core_alloc(struct device *sdev) 556 { 557 struct net_device *dev; 558 struct ath6kl *ar; 559 struct wireless_dev *wdev; 560 561 wdev = ath6kl_cfg80211_init(sdev); 562 if (!wdev) { 563 ath6kl_err("ath6kl_cfg80211_init failed\n"); 564 return NULL; 565 } 566 567 ar = wdev_priv(wdev); 568 ar->dev = sdev; 569 ar->wdev = wdev; 570 wdev->iftype = NL80211_IFTYPE_STATION; 571 572 if (ath6kl_debug_init(ar)) { 573 ath6kl_err("Failed to initialize debugfs\n"); 574 ath6kl_cfg80211_deinit(ar); 575 return NULL; 576 } 577 578 dev = alloc_netdev(0, "wlan%d", ether_setup); 579 if (!dev) { 580 ath6kl_err("no memory for network device instance\n"); 581 ath6kl_cfg80211_deinit(ar); 582 return NULL; 583 } 584 585 dev->ieee80211_ptr = wdev; 586 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy)); 587 wdev->netdev = dev; 588 ar->sme_state = SME_DISCONNECTED; 589 590 init_netdev(dev); 591 592 ar->net_dev = dev; 593 set_bit(WLAN_ENABLED, &ar->flag); 594 595 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 596 597 spin_lock_init(&ar->lock); 598 599 ath6kl_init_control_info(ar); 600 init_waitqueue_head(&ar->event_wq); 601 sema_init(&ar->sem, 1); 602 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 603 604 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 605 606 setup_timer(&ar->disconnect_timer, disconnect_timer_handler, 607 (unsigned long) dev); 608 609 return ar; 610 } 611 612 int ath6kl_unavail_ev(struct ath6kl *ar) 613 { 614 ath6kl_destroy(ar->net_dev, 1); 615 616 return 0; 617 } 618 619 /* firmware upload */ 620 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename, 621 u8 **fw, size_t *fw_len) 622 { 623 const struct firmware *fw_entry; 624 int ret; 625 626 ret = request_firmware(&fw_entry, filename, ar->dev); 627 if (ret) 628 return ret; 629 630 *fw_len = fw_entry->size; 631 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL); 632 633 if (*fw == NULL) 634 ret = -ENOMEM; 635 636 release_firmware(fw_entry); 637 638 return ret; 639 } 640 641 #ifdef CONFIG_OF 642 static const char *get_target_ver_dir(const struct ath6kl *ar) 643 { 644 switch (ar->version.target_ver) { 645 case AR6003_REV1_VERSION: 646 return "ath6k/AR6003/hw1.0"; 647 case AR6003_REV2_VERSION: 648 return "ath6k/AR6003/hw2.0"; 649 case AR6003_REV3_VERSION: 650 return "ath6k/AR6003/hw2.1.1"; 651 } 652 ath6kl_warn("%s: unsupported target version 0x%x.\n", __func__, 653 ar->version.target_ver); 654 return NULL; 655 } 656 657 /* 658 * Check the device tree for a board-id and use it to construct 659 * the pathname to the firmware file. Used (for now) to find a 660 * fallback to the "bdata.bin" file--typically a symlink to the 661 * appropriate board-specific file. 662 */ 663 static bool check_device_tree(struct ath6kl *ar) 664 { 665 static const char *board_id_prop = "atheros,board-id"; 666 struct device_node *node; 667 char board_filename[64]; 668 const char *board_id; 669 int ret; 670 671 for_each_compatible_node(node, NULL, "atheros,ath6kl") { 672 board_id = of_get_property(node, board_id_prop, NULL); 673 if (board_id == NULL) { 674 ath6kl_warn("No \"%s\" property on %s node.\n", 675 board_id_prop, node->name); 676 continue; 677 } 678 snprintf(board_filename, sizeof(board_filename), 679 "%s/bdata.%s.bin", get_target_ver_dir(ar), board_id); 680 681 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board, 682 &ar->fw_board_len); 683 if (ret) { 684 ath6kl_err("Failed to get DT board file %s: %d\n", 685 board_filename, ret); 686 continue; 687 } 688 return true; 689 } 690 return false; 691 } 692 #else 693 static bool check_device_tree(struct ath6kl *ar) 694 { 695 return false; 696 } 697 #endif /* CONFIG_OF */ 698 699 static int ath6kl_fetch_board_file(struct ath6kl *ar) 700 { 701 const char *filename; 702 int ret; 703 704 if (ar->fw_board != NULL) 705 return 0; 706 707 switch (ar->version.target_ver) { 708 case AR6003_REV2_VERSION: 709 filename = AR6003_REV2_BOARD_DATA_FILE; 710 break; 711 case AR6004_REV1_VERSION: 712 filename = AR6004_REV1_BOARD_DATA_FILE; 713 break; 714 default: 715 filename = AR6003_REV3_BOARD_DATA_FILE; 716 break; 717 } 718 719 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 720 &ar->fw_board_len); 721 if (ret == 0) { 722 /* managed to get proper board file */ 723 return 0; 724 } 725 726 if (check_device_tree(ar)) { 727 /* got board file from device tree */ 728 return 0; 729 } 730 731 /* there was no proper board file, try to use default instead */ 732 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n", 733 filename, ret); 734 735 switch (ar->version.target_ver) { 736 case AR6003_REV2_VERSION: 737 filename = AR6003_REV2_DEFAULT_BOARD_DATA_FILE; 738 break; 739 case AR6004_REV1_VERSION: 740 filename = AR6004_REV1_DEFAULT_BOARD_DATA_FILE; 741 break; 742 default: 743 filename = AR6003_REV3_DEFAULT_BOARD_DATA_FILE; 744 break; 745 } 746 747 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 748 &ar->fw_board_len); 749 if (ret) { 750 ath6kl_err("Failed to get default board file %s: %d\n", 751 filename, ret); 752 return ret; 753 } 754 755 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n"); 756 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n"); 757 758 return 0; 759 } 760 761 static int ath6kl_fetch_otp_file(struct ath6kl *ar) 762 { 763 const char *filename; 764 int ret; 765 766 if (ar->fw_otp != NULL) 767 return 0; 768 769 switch (ar->version.target_ver) { 770 case AR6003_REV2_VERSION: 771 filename = AR6003_REV2_OTP_FILE; 772 break; 773 case AR6004_REV1_VERSION: 774 ath6kl_dbg(ATH6KL_DBG_TRC, "AR6004 doesn't need OTP file\n"); 775 return 0; 776 break; 777 default: 778 filename = AR6003_REV3_OTP_FILE; 779 break; 780 } 781 782 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp, 783 &ar->fw_otp_len); 784 if (ret) { 785 ath6kl_err("Failed to get OTP file %s: %d\n", 786 filename, ret); 787 return ret; 788 } 789 790 return 0; 791 } 792 793 static int ath6kl_fetch_fw_file(struct ath6kl *ar) 794 { 795 const char *filename; 796 int ret; 797 798 if (ar->fw != NULL) 799 return 0; 800 801 if (testmode) { 802 switch (ar->version.target_ver) { 803 case AR6003_REV2_VERSION: 804 filename = AR6003_REV2_TCMD_FIRMWARE_FILE; 805 break; 806 case AR6003_REV3_VERSION: 807 filename = AR6003_REV3_TCMD_FIRMWARE_FILE; 808 break; 809 case AR6004_REV1_VERSION: 810 ath6kl_warn("testmode not supported with ar6004\n"); 811 return -EOPNOTSUPP; 812 default: 813 ath6kl_warn("unknown target version: 0x%x\n", 814 ar->version.target_ver); 815 return -EINVAL; 816 } 817 818 set_bit(TESTMODE, &ar->flag); 819 820 goto get_fw; 821 } 822 823 switch (ar->version.target_ver) { 824 case AR6003_REV2_VERSION: 825 filename = AR6003_REV2_FIRMWARE_FILE; 826 break; 827 case AR6004_REV1_VERSION: 828 filename = AR6004_REV1_FIRMWARE_FILE; 829 break; 830 default: 831 filename = AR6003_REV3_FIRMWARE_FILE; 832 break; 833 } 834 835 get_fw: 836 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len); 837 if (ret) { 838 ath6kl_err("Failed to get firmware file %s: %d\n", 839 filename, ret); 840 return ret; 841 } 842 843 return 0; 844 } 845 846 static int ath6kl_fetch_patch_file(struct ath6kl *ar) 847 { 848 const char *filename; 849 int ret; 850 851 switch (ar->version.target_ver) { 852 case AR6003_REV2_VERSION: 853 filename = AR6003_REV2_PATCH_FILE; 854 break; 855 case AR6004_REV1_VERSION: 856 /* FIXME: implement for AR6004 */ 857 return 0; 858 break; 859 default: 860 filename = AR6003_REV3_PATCH_FILE; 861 break; 862 } 863 864 if (ar->fw_patch == NULL) { 865 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch, 866 &ar->fw_patch_len); 867 if (ret) { 868 ath6kl_err("Failed to get patch file %s: %d\n", 869 filename, ret); 870 return ret; 871 } 872 } 873 874 return 0; 875 } 876 877 static int ath6kl_fetch_fw_api1(struct ath6kl *ar) 878 { 879 int ret; 880 881 ret = ath6kl_fetch_otp_file(ar); 882 if (ret) 883 return ret; 884 885 ret = ath6kl_fetch_fw_file(ar); 886 if (ret) 887 return ret; 888 889 ret = ath6kl_fetch_patch_file(ar); 890 if (ret) 891 return ret; 892 893 return 0; 894 } 895 896 static int ath6kl_fetch_fw_api2(struct ath6kl *ar) 897 { 898 size_t magic_len, len, ie_len; 899 const struct firmware *fw; 900 struct ath6kl_fw_ie *hdr; 901 const char *filename; 902 const u8 *data; 903 int ret, ie_id, i, index, bit; 904 __le32 *val; 905 906 switch (ar->version.target_ver) { 907 case AR6003_REV2_VERSION: 908 filename = AR6003_REV2_FIRMWARE_2_FILE; 909 break; 910 case AR6003_REV3_VERSION: 911 filename = AR6003_REV3_FIRMWARE_2_FILE; 912 break; 913 case AR6004_REV1_VERSION: 914 filename = AR6004_REV1_FIRMWARE_2_FILE; 915 break; 916 default: 917 return -EOPNOTSUPP; 918 } 919 920 ret = request_firmware(&fw, filename, ar->dev); 921 if (ret) 922 return ret; 923 924 data = fw->data; 925 len = fw->size; 926 927 /* magic also includes the null byte, check that as well */ 928 magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1; 929 930 if (len < magic_len) { 931 ret = -EINVAL; 932 goto out; 933 } 934 935 if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) { 936 ret = -EINVAL; 937 goto out; 938 } 939 940 len -= magic_len; 941 data += magic_len; 942 943 /* loop elements */ 944 while (len > sizeof(struct ath6kl_fw_ie)) { 945 /* hdr is unaligned! */ 946 hdr = (struct ath6kl_fw_ie *) data; 947 948 ie_id = le32_to_cpup(&hdr->id); 949 ie_len = le32_to_cpup(&hdr->len); 950 951 len -= sizeof(*hdr); 952 data += sizeof(*hdr); 953 954 if (len < ie_len) { 955 ret = -EINVAL; 956 goto out; 957 } 958 959 switch (ie_id) { 960 case ATH6KL_FW_IE_OTP_IMAGE: 961 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL); 962 963 if (ar->fw_otp == NULL) { 964 ret = -ENOMEM; 965 goto out; 966 } 967 968 ar->fw_otp_len = ie_len; 969 break; 970 case ATH6KL_FW_IE_FW_IMAGE: 971 ar->fw = kmemdup(data, ie_len, GFP_KERNEL); 972 973 if (ar->fw == NULL) { 974 ret = -ENOMEM; 975 goto out; 976 } 977 978 ar->fw_len = ie_len; 979 break; 980 case ATH6KL_FW_IE_PATCH_IMAGE: 981 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL); 982 983 if (ar->fw_patch == NULL) { 984 ret = -ENOMEM; 985 goto out; 986 } 987 988 ar->fw_patch_len = ie_len; 989 break; 990 case ATH6KL_FW_IE_RESERVED_RAM_SIZE: 991 val = (__le32 *) data; 992 ar->hw.reserved_ram_size = le32_to_cpup(val); 993 break; 994 case ATH6KL_FW_IE_CAPABILITIES: 995 for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) { 996 index = ALIGN(i, 8) / 8; 997 bit = i % 8; 998 999 if (data[index] & (1 << bit)) 1000 __set_bit(i, ar->fw_capabilities); 1001 } 1002 break; 1003 default: 1004 ath6kl_dbg(ATH6KL_DBG_TRC, "Unknown fw ie: %u\n", 1005 le32_to_cpup(&hdr->id)); 1006 break; 1007 } 1008 1009 len -= ie_len; 1010 data += ie_len; 1011 }; 1012 1013 ret = 0; 1014 out: 1015 release_firmware(fw); 1016 1017 return ret; 1018 } 1019 1020 static int ath6kl_fetch_firmwares(struct ath6kl *ar) 1021 { 1022 int ret; 1023 1024 ret = ath6kl_fetch_board_file(ar); 1025 if (ret) 1026 return ret; 1027 1028 ret = ath6kl_fetch_fw_api2(ar); 1029 if (ret == 0) 1030 /* fw api 2 found, use it */ 1031 return 0; 1032 1033 ret = ath6kl_fetch_fw_api1(ar); 1034 if (ret) 1035 return ret; 1036 1037 return 0; 1038 } 1039 1040 static int ath6kl_upload_board_file(struct ath6kl *ar) 1041 { 1042 u32 board_address, board_ext_address, param; 1043 u32 board_data_size, board_ext_data_size; 1044 int ret; 1045 1046 if (WARN_ON(ar->fw_board == NULL)) 1047 return -ENOENT; 1048 1049 /* 1050 * Determine where in Target RAM to write Board Data. 1051 * For AR6004, host determine Target RAM address for 1052 * writing board data. 1053 */ 1054 if (ar->target_type == TARGET_TYPE_AR6004) { 1055 board_address = AR6004_REV1_BOARD_DATA_ADDRESS; 1056 ath6kl_bmi_write(ar, 1057 ath6kl_get_hi_item_addr(ar, 1058 HI_ITEM(hi_board_data)), 1059 (u8 *) &board_address, 4); 1060 } else { 1061 ath6kl_bmi_read(ar, 1062 ath6kl_get_hi_item_addr(ar, 1063 HI_ITEM(hi_board_data)), 1064 (u8 *) &board_address, 4); 1065 } 1066 1067 ath6kl_dbg(ATH6KL_DBG_TRC, "board data download addr: 0x%x\n", 1068 board_address); 1069 1070 /* determine where in target ram to write extended board data */ 1071 ath6kl_bmi_read(ar, 1072 ath6kl_get_hi_item_addr(ar, 1073 HI_ITEM(hi_board_ext_data)), 1074 (u8 *) &board_ext_address, 4); 1075 1076 ath6kl_dbg(ATH6KL_DBG_TRC, "board file download addr: 0x%x\n", 1077 board_ext_address); 1078 1079 if (board_ext_address == 0) { 1080 ath6kl_err("Failed to get board file target address.\n"); 1081 return -EINVAL; 1082 } 1083 1084 switch (ar->target_type) { 1085 case TARGET_TYPE_AR6003: 1086 board_data_size = AR6003_BOARD_DATA_SZ; 1087 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ; 1088 break; 1089 case TARGET_TYPE_AR6004: 1090 board_data_size = AR6004_BOARD_DATA_SZ; 1091 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ; 1092 break; 1093 default: 1094 WARN_ON(1); 1095 return -EINVAL; 1096 break; 1097 } 1098 1099 if (ar->fw_board_len == (board_data_size + 1100 board_ext_data_size)) { 1101 1102 /* write extended board data */ 1103 ret = ath6kl_bmi_write(ar, board_ext_address, 1104 ar->fw_board + board_data_size, 1105 board_ext_data_size); 1106 if (ret) { 1107 ath6kl_err("Failed to write extended board data: %d\n", 1108 ret); 1109 return ret; 1110 } 1111 1112 /* record that extended board data is initialized */ 1113 param = (board_ext_data_size << 16) | 1; 1114 1115 ath6kl_bmi_write(ar, 1116 ath6kl_get_hi_item_addr(ar, 1117 HI_ITEM(hi_board_ext_data_config)), 1118 (unsigned char *) ¶m, 4); 1119 } 1120 1121 if (ar->fw_board_len < board_data_size) { 1122 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len); 1123 ret = -EINVAL; 1124 return ret; 1125 } 1126 1127 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board, 1128 board_data_size); 1129 1130 if (ret) { 1131 ath6kl_err("Board file bmi write failed: %d\n", ret); 1132 return ret; 1133 } 1134 1135 /* record the fact that Board Data IS initialized */ 1136 param = 1; 1137 ath6kl_bmi_write(ar, 1138 ath6kl_get_hi_item_addr(ar, 1139 HI_ITEM(hi_board_data_initialized)), 1140 (u8 *)¶m, 4); 1141 1142 return ret; 1143 } 1144 1145 static int ath6kl_upload_otp(struct ath6kl *ar) 1146 { 1147 u32 address, param; 1148 int ret; 1149 1150 if (WARN_ON(ar->fw_otp == NULL)) 1151 return -ENOENT; 1152 1153 address = ar->hw.app_load_addr; 1154 1155 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp, 1156 ar->fw_otp_len); 1157 if (ret) { 1158 ath6kl_err("Failed to upload OTP file: %d\n", ret); 1159 return ret; 1160 } 1161 1162 /* read firmware start address */ 1163 ret = ath6kl_bmi_read(ar, 1164 ath6kl_get_hi_item_addr(ar, 1165 HI_ITEM(hi_app_start)), 1166 (u8 *) &address, sizeof(address)); 1167 1168 if (ret) { 1169 ath6kl_err("Failed to read hi_app_start: %d\n", ret); 1170 return ret; 1171 } 1172 1173 ar->hw.app_start_override_addr = address; 1174 1175 /* execute the OTP code */ 1176 param = 0; 1177 ath6kl_bmi_execute(ar, address, ¶m); 1178 1179 return ret; 1180 } 1181 1182 static int ath6kl_upload_firmware(struct ath6kl *ar) 1183 { 1184 u32 address; 1185 int ret; 1186 1187 if (WARN_ON(ar->fw == NULL)) 1188 return -ENOENT; 1189 1190 address = ar->hw.app_load_addr; 1191 1192 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len); 1193 1194 if (ret) { 1195 ath6kl_err("Failed to write firmware: %d\n", ret); 1196 return ret; 1197 } 1198 1199 /* 1200 * Set starting address for firmware 1201 * Don't need to setup app_start override addr on AR6004 1202 */ 1203 if (ar->target_type != TARGET_TYPE_AR6004) { 1204 address = ar->hw.app_start_override_addr; 1205 ath6kl_bmi_set_app_start(ar, address); 1206 } 1207 return ret; 1208 } 1209 1210 static int ath6kl_upload_patch(struct ath6kl *ar) 1211 { 1212 u32 address, param; 1213 int ret; 1214 1215 if (WARN_ON(ar->fw_patch == NULL)) 1216 return -ENOENT; 1217 1218 address = ar->hw.dataset_patch_addr; 1219 1220 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len); 1221 if (ret) { 1222 ath6kl_err("Failed to write patch file: %d\n", ret); 1223 return ret; 1224 } 1225 1226 param = address; 1227 ath6kl_bmi_write(ar, 1228 ath6kl_get_hi_item_addr(ar, 1229 HI_ITEM(hi_dset_list_head)), 1230 (unsigned char *) ¶m, 4); 1231 1232 return 0; 1233 } 1234 1235 static int ath6kl_init_upload(struct ath6kl *ar) 1236 { 1237 u32 param, options, sleep, address; 1238 int status = 0; 1239 1240 if (ar->target_type != TARGET_TYPE_AR6003 && 1241 ar->target_type != TARGET_TYPE_AR6004) 1242 return -EINVAL; 1243 1244 /* temporarily disable system sleep */ 1245 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1246 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1247 if (status) 1248 return status; 1249 1250 options = param; 1251 1252 param |= ATH6KL_OPTION_SLEEP_DISABLE; 1253 status = ath6kl_bmi_reg_write(ar, address, param); 1254 if (status) 1255 return status; 1256 1257 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1258 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1259 if (status) 1260 return status; 1261 1262 sleep = param; 1263 1264 param |= SM(SYSTEM_SLEEP_DISABLE, 1); 1265 status = ath6kl_bmi_reg_write(ar, address, param); 1266 if (status) 1267 return status; 1268 1269 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n", 1270 options, sleep); 1271 1272 /* program analog PLL register */ 1273 /* no need to control 40/44MHz clock on AR6004 */ 1274 if (ar->target_type != TARGET_TYPE_AR6004) { 1275 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER, 1276 0xF9104001); 1277 1278 if (status) 1279 return status; 1280 1281 /* Run at 80/88MHz by default */ 1282 param = SM(CPU_CLOCK_STANDARD, 1); 1283 1284 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS; 1285 status = ath6kl_bmi_reg_write(ar, address, param); 1286 if (status) 1287 return status; 1288 } 1289 1290 param = 0; 1291 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS; 1292 param = SM(LPO_CAL_ENABLE, 1); 1293 status = ath6kl_bmi_reg_write(ar, address, param); 1294 if (status) 1295 return status; 1296 1297 /* WAR to avoid SDIO CRC err */ 1298 if (ar->version.target_ver == AR6003_REV2_VERSION) { 1299 ath6kl_err("temporary war to avoid sdio crc error\n"); 1300 1301 param = 0x20; 1302 1303 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS; 1304 status = ath6kl_bmi_reg_write(ar, address, param); 1305 if (status) 1306 return status; 1307 1308 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS; 1309 status = ath6kl_bmi_reg_write(ar, address, param); 1310 if (status) 1311 return status; 1312 1313 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS; 1314 status = ath6kl_bmi_reg_write(ar, address, param); 1315 if (status) 1316 return status; 1317 1318 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS; 1319 status = ath6kl_bmi_reg_write(ar, address, param); 1320 if (status) 1321 return status; 1322 } 1323 1324 /* write EEPROM data to Target RAM */ 1325 status = ath6kl_upload_board_file(ar); 1326 if (status) 1327 return status; 1328 1329 /* transfer One time Programmable data */ 1330 status = ath6kl_upload_otp(ar); 1331 if (status) 1332 return status; 1333 1334 /* Download Target firmware */ 1335 status = ath6kl_upload_firmware(ar); 1336 if (status) 1337 return status; 1338 1339 status = ath6kl_upload_patch(ar); 1340 if (status) 1341 return status; 1342 1343 /* Restore system sleep */ 1344 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1345 status = ath6kl_bmi_reg_write(ar, address, sleep); 1346 if (status) 1347 return status; 1348 1349 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1350 param = options | 0x20; 1351 status = ath6kl_bmi_reg_write(ar, address, param); 1352 if (status) 1353 return status; 1354 1355 /* Configure GPIO AR6003 UART */ 1356 param = CONFIG_AR600x_DEBUG_UART_TX_PIN; 1357 status = ath6kl_bmi_write(ar, 1358 ath6kl_get_hi_item_addr(ar, 1359 HI_ITEM(hi_dbg_uart_txpin)), 1360 (u8 *)¶m, 4); 1361 1362 return status; 1363 } 1364 1365 static int ath6kl_init_hw_params(struct ath6kl *ar) 1366 { 1367 switch (ar->version.target_ver) { 1368 case AR6003_REV2_VERSION: 1369 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1370 ar->hw.app_load_addr = AR6003_REV2_APP_LOAD_ADDRESS; 1371 ar->hw.board_ext_data_addr = AR6003_REV2_BOARD_EXT_DATA_ADDRESS; 1372 ar->hw.reserved_ram_size = AR6003_REV2_RAM_RESERVE_SIZE; 1373 break; 1374 case AR6003_REV3_VERSION: 1375 ar->hw.dataset_patch_addr = AR6003_REV3_DATASET_PATCH_ADDRESS; 1376 ar->hw.app_load_addr = 0x1234; 1377 ar->hw.board_ext_data_addr = AR6003_REV3_BOARD_EXT_DATA_ADDRESS; 1378 ar->hw.reserved_ram_size = AR6003_REV3_RAM_RESERVE_SIZE; 1379 break; 1380 case AR6004_REV1_VERSION: 1381 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1382 ar->hw.app_load_addr = AR6003_REV3_APP_LOAD_ADDRESS; 1383 ar->hw.board_ext_data_addr = AR6004_REV1_BOARD_EXT_DATA_ADDRESS; 1384 ar->hw.reserved_ram_size = AR6004_REV1_RAM_RESERVE_SIZE; 1385 break; 1386 default: 1387 ath6kl_err("Unsupported hardware version: 0x%x\n", 1388 ar->version.target_ver); 1389 return -EINVAL; 1390 } 1391 1392 return 0; 1393 } 1394 1395 static int ath6kl_init(struct net_device *dev) 1396 { 1397 struct ath6kl *ar = ath6kl_priv(dev); 1398 int status = 0; 1399 s32 timeleft; 1400 1401 if (!ar) 1402 return -EIO; 1403 1404 /* Do we need to finish the BMI phase */ 1405 if (ath6kl_bmi_done(ar)) { 1406 status = -EIO; 1407 goto ath6kl_init_done; 1408 } 1409 1410 /* Indicate that WMI is enabled (although not ready yet) */ 1411 set_bit(WMI_ENABLED, &ar->flag); 1412 ar->wmi = ath6kl_wmi_init(ar); 1413 if (!ar->wmi) { 1414 ath6kl_err("failed to initialize wmi\n"); 1415 status = -EIO; 1416 goto ath6kl_init_done; 1417 } 1418 1419 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 1420 1421 /* 1422 * The reason we have to wait for the target here is that the 1423 * driver layer has to init BMI in order to set the host block 1424 * size. 1425 */ 1426 if (ath6kl_htc_wait_target(ar->htc_target)) { 1427 status = -EIO; 1428 goto err_node_cleanup; 1429 } 1430 1431 if (ath6kl_init_service_ep(ar)) { 1432 status = -EIO; 1433 goto err_cleanup_scatter; 1434 } 1435 1436 /* setup access class priority mappings */ 1437 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 1438 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 1439 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 1440 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 1441 1442 /* give our connected endpoints some buffers */ 1443 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 1444 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 1445 1446 /* allocate some buffers that handle larger AMSDU frames */ 1447 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 1448 1449 /* setup credit distribution */ 1450 ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info); 1451 1452 ath6kl_cookie_init(ar); 1453 1454 /* start HTC */ 1455 status = ath6kl_htc_start(ar->htc_target); 1456 1457 if (status) { 1458 ath6kl_cookie_cleanup(ar); 1459 goto err_rxbuf_cleanup; 1460 } 1461 1462 /* Wait for Wmi event to be ready */ 1463 timeleft = wait_event_interruptible_timeout(ar->event_wq, 1464 test_bit(WMI_READY, 1465 &ar->flag), 1466 WMI_TIMEOUT); 1467 1468 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { 1469 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", 1470 ATH6KL_ABI_VERSION, ar->version.abi_ver); 1471 status = -EIO; 1472 goto err_htc_stop; 1473 } 1474 1475 if (!timeleft || signal_pending(current)) { 1476 ath6kl_err("wmi is not ready or wait was interrupted\n"); 1477 status = -EIO; 1478 goto err_htc_stop; 1479 } 1480 1481 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); 1482 1483 /* communicate the wmi protocol verision to the target */ 1484 if ((ath6kl_set_host_app_area(ar)) != 0) 1485 ath6kl_err("unable to set the host app area\n"); 1486 1487 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 1488 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 1489 1490 status = ath6kl_target_config_wlan_params(ar); 1491 if (!status) 1492 goto ath6kl_init_done; 1493 1494 err_htc_stop: 1495 ath6kl_htc_stop(ar->htc_target); 1496 err_rxbuf_cleanup: 1497 ath6kl_htc_flush_rx_buf(ar->htc_target); 1498 ath6kl_cleanup_amsdu_rxbufs(ar); 1499 err_cleanup_scatter: 1500 ath6kl_hif_cleanup_scatter(ar); 1501 err_node_cleanup: 1502 ath6kl_wmi_shutdown(ar->wmi); 1503 clear_bit(WMI_ENABLED, &ar->flag); 1504 ar->wmi = NULL; 1505 1506 ath6kl_init_done: 1507 return status; 1508 } 1509 1510 int ath6kl_core_init(struct ath6kl *ar) 1511 { 1512 int ret = 0; 1513 struct ath6kl_bmi_target_info targ_info; 1514 1515 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 1516 if (!ar->ath6kl_wq) 1517 return -ENOMEM; 1518 1519 ret = ath6kl_bmi_init(ar); 1520 if (ret) 1521 goto err_wq; 1522 1523 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 1524 if (ret) 1525 goto err_bmi_cleanup; 1526 1527 ar->version.target_ver = le32_to_cpu(targ_info.version); 1528 ar->target_type = le32_to_cpu(targ_info.type); 1529 ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version); 1530 1531 ret = ath6kl_init_hw_params(ar); 1532 if (ret) 1533 goto err_bmi_cleanup; 1534 1535 ret = ath6kl_configure_target(ar); 1536 if (ret) 1537 goto err_bmi_cleanup; 1538 1539 ar->htc_target = ath6kl_htc_create(ar); 1540 1541 if (!ar->htc_target) { 1542 ret = -ENOMEM; 1543 goto err_bmi_cleanup; 1544 } 1545 1546 ar->aggr_cntxt = aggr_init(ar->net_dev); 1547 if (!ar->aggr_cntxt) { 1548 ath6kl_err("failed to initialize aggr\n"); 1549 ret = -ENOMEM; 1550 goto err_htc_cleanup; 1551 } 1552 1553 ret = ath6kl_fetch_firmwares(ar); 1554 if (ret) 1555 goto err_htc_cleanup; 1556 1557 ret = ath6kl_init_upload(ar); 1558 if (ret) 1559 goto err_htc_cleanup; 1560 1561 ret = ath6kl_init(ar->net_dev); 1562 if (ret) 1563 goto err_htc_cleanup; 1564 1565 /* This runs the init function if registered */ 1566 ret = register_netdev(ar->net_dev); 1567 if (ret) { 1568 ath6kl_err("register_netdev failed\n"); 1569 ath6kl_destroy(ar->net_dev, 0); 1570 return ret; 1571 } 1572 1573 set_bit(NETDEV_REGISTERED, &ar->flag); 1574 1575 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 1576 __func__, ar->net_dev->name, ar->net_dev, ar); 1577 1578 return ret; 1579 1580 err_htc_cleanup: 1581 ath6kl_htc_cleanup(ar->htc_target); 1582 err_bmi_cleanup: 1583 ath6kl_bmi_cleanup(ar); 1584 err_wq: 1585 destroy_workqueue(ar->ath6kl_wq); 1586 return ret; 1587 } 1588 1589 void ath6kl_stop_txrx(struct ath6kl *ar) 1590 { 1591 struct net_device *ndev = ar->net_dev; 1592 1593 if (!ndev) 1594 return; 1595 1596 set_bit(DESTROY_IN_PROGRESS, &ar->flag); 1597 1598 if (down_interruptible(&ar->sem)) { 1599 ath6kl_err("down_interruptible failed\n"); 1600 return; 1601 } 1602 1603 if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR) 1604 ath6kl_stop_endpoint(ndev, false, true); 1605 1606 clear_bit(WLAN_ENABLED, &ar->flag); 1607 } 1608 1609 /* 1610 * We need to differentiate between the surprise and planned removal of the 1611 * device because of the following consideration: 1612 * 1613 * - In case of surprise removal, the hcd already frees up the pending 1614 * for the device and hence there is no need to unregister the function 1615 * driver inorder to get these requests. For planned removal, the function 1616 * driver has to explicitly unregister itself to have the hcd return all the 1617 * pending requests before the data structures for the devices are freed up. 1618 * Note that as per the current implementation, the function driver will 1619 * end up releasing all the devices since there is no API to selectively 1620 * release a particular device. 1621 * 1622 * - Certain commands issued to the target can be skipped for surprise 1623 * removal since they will anyway not go through. 1624 */ 1625 void ath6kl_destroy(struct net_device *dev, unsigned int unregister) 1626 { 1627 struct ath6kl *ar; 1628 1629 if (!dev || !ath6kl_priv(dev)) { 1630 ath6kl_err("failed to get device structure\n"); 1631 return; 1632 } 1633 1634 ar = ath6kl_priv(dev); 1635 1636 destroy_workqueue(ar->ath6kl_wq); 1637 1638 if (ar->htc_target) 1639 ath6kl_htc_cleanup(ar->htc_target); 1640 1641 aggr_module_destroy(ar->aggr_cntxt); 1642 1643 ath6kl_cookie_cleanup(ar); 1644 1645 ath6kl_cleanup_amsdu_rxbufs(ar); 1646 1647 ath6kl_bmi_cleanup(ar); 1648 1649 ath6kl_debug_cleanup(ar); 1650 1651 if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) { 1652 unregister_netdev(dev); 1653 clear_bit(NETDEV_REGISTERED, &ar->flag); 1654 } 1655 1656 free_netdev(dev); 1657 1658 kfree(ar->fw_board); 1659 kfree(ar->fw_otp); 1660 kfree(ar->fw); 1661 kfree(ar->fw_patch); 1662 1663 ath6kl_cfg80211_deinit(ar); 1664 } 1665