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 ar->auto_auth_stage = AUTH_IDLE; 590 591 init_netdev(dev); 592 593 ar->net_dev = dev; 594 set_bit(WLAN_ENABLED, &ar->flag); 595 596 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 597 598 spin_lock_init(&ar->lock); 599 600 ath6kl_init_control_info(ar); 601 init_waitqueue_head(&ar->event_wq); 602 sema_init(&ar->sem, 1); 603 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 604 605 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 606 607 setup_timer(&ar->disconnect_timer, disconnect_timer_handler, 608 (unsigned long) dev); 609 610 return ar; 611 } 612 613 int ath6kl_unavail_ev(struct ath6kl *ar) 614 { 615 ath6kl_destroy(ar->net_dev, 1); 616 617 return 0; 618 } 619 620 /* firmware upload */ 621 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename, 622 u8 **fw, size_t *fw_len) 623 { 624 const struct firmware *fw_entry; 625 int ret; 626 627 ret = request_firmware(&fw_entry, filename, ar->dev); 628 if (ret) 629 return ret; 630 631 *fw_len = fw_entry->size; 632 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL); 633 634 if (*fw == NULL) 635 ret = -ENOMEM; 636 637 release_firmware(fw_entry); 638 639 return ret; 640 } 641 642 #ifdef CONFIG_OF 643 static const char *get_target_ver_dir(const struct ath6kl *ar) 644 { 645 switch (ar->version.target_ver) { 646 case AR6003_REV1_VERSION: 647 return "ath6k/AR6003/hw1.0"; 648 case AR6003_REV2_VERSION: 649 return "ath6k/AR6003/hw2.0"; 650 case AR6003_REV3_VERSION: 651 return "ath6k/AR6003/hw2.1.1"; 652 } 653 ath6kl_warn("%s: unsupported target version 0x%x.\n", __func__, 654 ar->version.target_ver); 655 return NULL; 656 } 657 658 /* 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", get_target_ver_dir(ar), 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 switch (ar->version.target_ver) { 709 case AR6003_REV2_VERSION: 710 filename = AR6003_REV2_BOARD_DATA_FILE; 711 break; 712 case AR6004_REV1_VERSION: 713 filename = AR6004_REV1_BOARD_DATA_FILE; 714 break; 715 default: 716 filename = AR6003_REV3_BOARD_DATA_FILE; 717 break; 718 } 719 720 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 721 &ar->fw_board_len); 722 if (ret == 0) { 723 /* managed to get proper board file */ 724 return 0; 725 } 726 727 if (check_device_tree(ar)) { 728 /* got board file from device tree */ 729 return 0; 730 } 731 732 /* there was no proper board file, try to use default instead */ 733 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n", 734 filename, ret); 735 736 switch (ar->version.target_ver) { 737 case AR6003_REV2_VERSION: 738 filename = AR6003_REV2_DEFAULT_BOARD_DATA_FILE; 739 break; 740 case AR6004_REV1_VERSION: 741 filename = AR6004_REV1_DEFAULT_BOARD_DATA_FILE; 742 break; 743 default: 744 filename = AR6003_REV3_DEFAULT_BOARD_DATA_FILE; 745 break; 746 } 747 748 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 749 &ar->fw_board_len); 750 if (ret) { 751 ath6kl_err("Failed to get default board file %s: %d\n", 752 filename, ret); 753 return ret; 754 } 755 756 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n"); 757 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n"); 758 759 return 0; 760 } 761 762 static int ath6kl_fetch_otp_file(struct ath6kl *ar) 763 { 764 const char *filename; 765 int ret; 766 767 if (ar->fw_otp != NULL) 768 return 0; 769 770 switch (ar->version.target_ver) { 771 case AR6003_REV2_VERSION: 772 filename = AR6003_REV2_OTP_FILE; 773 break; 774 case AR6004_REV1_VERSION: 775 ath6kl_dbg(ATH6KL_DBG_TRC, "AR6004 doesn't need OTP file\n"); 776 return 0; 777 break; 778 default: 779 filename = AR6003_REV3_OTP_FILE; 780 break; 781 } 782 783 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp, 784 &ar->fw_otp_len); 785 if (ret) { 786 ath6kl_err("Failed to get OTP file %s: %d\n", 787 filename, ret); 788 return ret; 789 } 790 791 return 0; 792 } 793 794 static int ath6kl_fetch_fw_file(struct ath6kl *ar) 795 { 796 const char *filename; 797 int ret; 798 799 if (ar->fw != NULL) 800 return 0; 801 802 if (testmode) { 803 switch (ar->version.target_ver) { 804 case AR6003_REV2_VERSION: 805 filename = AR6003_REV2_TCMD_FIRMWARE_FILE; 806 break; 807 case AR6003_REV3_VERSION: 808 filename = AR6003_REV3_TCMD_FIRMWARE_FILE; 809 break; 810 case AR6004_REV1_VERSION: 811 ath6kl_warn("testmode not supported with ar6004\n"); 812 return -EOPNOTSUPP; 813 default: 814 ath6kl_warn("unknown target version: 0x%x\n", 815 ar->version.target_ver); 816 return -EINVAL; 817 } 818 819 set_bit(TESTMODE, &ar->flag); 820 821 goto get_fw; 822 } 823 824 switch (ar->version.target_ver) { 825 case AR6003_REV2_VERSION: 826 filename = AR6003_REV2_FIRMWARE_FILE; 827 break; 828 case AR6004_REV1_VERSION: 829 filename = AR6004_REV1_FIRMWARE_FILE; 830 break; 831 default: 832 filename = AR6003_REV3_FIRMWARE_FILE; 833 break; 834 } 835 836 get_fw: 837 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len); 838 if (ret) { 839 ath6kl_err("Failed to get firmware file %s: %d\n", 840 filename, ret); 841 return ret; 842 } 843 844 return 0; 845 } 846 847 static int ath6kl_fetch_patch_file(struct ath6kl *ar) 848 { 849 const char *filename; 850 int ret; 851 852 switch (ar->version.target_ver) { 853 case AR6003_REV2_VERSION: 854 filename = AR6003_REV2_PATCH_FILE; 855 break; 856 case AR6004_REV1_VERSION: 857 /* FIXME: implement for AR6004 */ 858 return 0; 859 break; 860 default: 861 filename = AR6003_REV3_PATCH_FILE; 862 break; 863 } 864 865 if (ar->fw_patch == NULL) { 866 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch, 867 &ar->fw_patch_len); 868 if (ret) { 869 ath6kl_err("Failed to get patch file %s: %d\n", 870 filename, ret); 871 return ret; 872 } 873 } 874 875 return 0; 876 } 877 878 static int ath6kl_fetch_fw_api1(struct ath6kl *ar) 879 { 880 int ret; 881 882 ret = ath6kl_fetch_otp_file(ar); 883 if (ret) 884 return ret; 885 886 ret = ath6kl_fetch_fw_file(ar); 887 if (ret) 888 return ret; 889 890 ret = ath6kl_fetch_patch_file(ar); 891 if (ret) 892 return ret; 893 894 return 0; 895 } 896 897 static int ath6kl_fetch_fw_api2(struct ath6kl *ar) 898 { 899 size_t magic_len, len, ie_len; 900 const struct firmware *fw; 901 struct ath6kl_fw_ie *hdr; 902 const char *filename; 903 const u8 *data; 904 int ret, ie_id; 905 __le32 *val; 906 907 switch (ar->version.target_ver) { 908 case AR6003_REV2_VERSION: 909 filename = AR6003_REV2_FIRMWARE_2_FILE; 910 break; 911 case AR6003_REV3_VERSION: 912 filename = AR6003_REV3_FIRMWARE_2_FILE; 913 break; 914 case AR6004_REV1_VERSION: 915 filename = AR6004_REV1_FIRMWARE_2_FILE; 916 break; 917 default: 918 return -EOPNOTSUPP; 919 } 920 921 ret = request_firmware(&fw, filename, ar->dev); 922 if (ret) 923 return ret; 924 925 data = fw->data; 926 len = fw->size; 927 928 /* magic also includes the null byte, check that as well */ 929 magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1; 930 931 if (len < magic_len) { 932 ret = -EINVAL; 933 goto out; 934 } 935 936 if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) { 937 ret = -EINVAL; 938 goto out; 939 } 940 941 len -= magic_len; 942 data += magic_len; 943 944 /* loop elements */ 945 while (len > sizeof(struct ath6kl_fw_ie)) { 946 /* hdr is unaligned! */ 947 hdr = (struct ath6kl_fw_ie *) data; 948 949 ie_id = le32_to_cpup(&hdr->id); 950 ie_len = le32_to_cpup(&hdr->len); 951 952 len -= sizeof(*hdr); 953 data += sizeof(*hdr); 954 955 if (len < ie_len) { 956 ret = -EINVAL; 957 goto out; 958 } 959 960 switch (ie_id) { 961 case ATH6KL_FW_IE_OTP_IMAGE: 962 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL); 963 964 if (ar->fw_otp == NULL) { 965 ret = -ENOMEM; 966 goto out; 967 } 968 969 ar->fw_otp_len = ie_len; 970 break; 971 case ATH6KL_FW_IE_FW_IMAGE: 972 ar->fw = kmemdup(data, ie_len, GFP_KERNEL); 973 974 if (ar->fw == NULL) { 975 ret = -ENOMEM; 976 goto out; 977 } 978 979 ar->fw_len = ie_len; 980 break; 981 case ATH6KL_FW_IE_PATCH_IMAGE: 982 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL); 983 984 if (ar->fw_patch == NULL) { 985 ret = -ENOMEM; 986 goto out; 987 } 988 989 ar->fw_patch_len = ie_len; 990 break; 991 case ATH6KL_FW_IE_RESERVED_RAM_SIZE: 992 val = (__le32 *) data; 993 ar->hw.reserved_ram_size = le32_to_cpup(val); 994 break; 995 default: 996 ath6kl_dbg(ATH6KL_DBG_TRC, "Unknown fw ie: %u\n", 997 le32_to_cpup(&hdr->id)); 998 break; 999 } 1000 1001 len -= ie_len; 1002 data += ie_len; 1003 }; 1004 1005 ret = 0; 1006 out: 1007 release_firmware(fw); 1008 1009 return ret; 1010 } 1011 1012 static int ath6kl_fetch_firmwares(struct ath6kl *ar) 1013 { 1014 int ret; 1015 1016 ret = ath6kl_fetch_board_file(ar); 1017 if (ret) 1018 return ret; 1019 1020 ret = ath6kl_fetch_fw_api2(ar); 1021 if (ret == 0) 1022 /* fw api 2 found, use it */ 1023 return 0; 1024 1025 ret = ath6kl_fetch_fw_api1(ar); 1026 if (ret) 1027 return ret; 1028 1029 return 0; 1030 } 1031 1032 static int ath6kl_upload_board_file(struct ath6kl *ar) 1033 { 1034 u32 board_address, board_ext_address, param; 1035 u32 board_data_size, board_ext_data_size; 1036 int ret; 1037 1038 if (WARN_ON(ar->fw_board == NULL)) 1039 return -ENOENT; 1040 1041 /* 1042 * Determine where in Target RAM to write Board Data. 1043 * For AR6004, host determine Target RAM address for 1044 * writing board data. 1045 */ 1046 if (ar->target_type == TARGET_TYPE_AR6004) { 1047 board_address = AR6004_REV1_BOARD_DATA_ADDRESS; 1048 ath6kl_bmi_write(ar, 1049 ath6kl_get_hi_item_addr(ar, 1050 HI_ITEM(hi_board_data)), 1051 (u8 *) &board_address, 4); 1052 } else { 1053 ath6kl_bmi_read(ar, 1054 ath6kl_get_hi_item_addr(ar, 1055 HI_ITEM(hi_board_data)), 1056 (u8 *) &board_address, 4); 1057 } 1058 1059 ath6kl_dbg(ATH6KL_DBG_TRC, "board data download addr: 0x%x\n", 1060 board_address); 1061 1062 /* determine where in target ram to write extended board data */ 1063 ath6kl_bmi_read(ar, 1064 ath6kl_get_hi_item_addr(ar, 1065 HI_ITEM(hi_board_ext_data)), 1066 (u8 *) &board_ext_address, 4); 1067 1068 ath6kl_dbg(ATH6KL_DBG_TRC, "board file download addr: 0x%x\n", 1069 board_ext_address); 1070 1071 if (board_ext_address == 0) { 1072 ath6kl_err("Failed to get board file target address.\n"); 1073 return -EINVAL; 1074 } 1075 1076 switch (ar->target_type) { 1077 case TARGET_TYPE_AR6003: 1078 board_data_size = AR6003_BOARD_DATA_SZ; 1079 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ; 1080 break; 1081 case TARGET_TYPE_AR6004: 1082 board_data_size = AR6004_BOARD_DATA_SZ; 1083 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ; 1084 break; 1085 default: 1086 WARN_ON(1); 1087 return -EINVAL; 1088 break; 1089 } 1090 1091 if (ar->fw_board_len == (board_data_size + 1092 board_ext_data_size)) { 1093 1094 /* write extended board data */ 1095 ret = ath6kl_bmi_write(ar, board_ext_address, 1096 ar->fw_board + board_data_size, 1097 board_ext_data_size); 1098 if (ret) { 1099 ath6kl_err("Failed to write extended board data: %d\n", 1100 ret); 1101 return ret; 1102 } 1103 1104 /* record that extended board data is initialized */ 1105 param = (board_ext_data_size << 16) | 1; 1106 1107 ath6kl_bmi_write(ar, 1108 ath6kl_get_hi_item_addr(ar, 1109 HI_ITEM(hi_board_ext_data_config)), 1110 (unsigned char *) ¶m, 4); 1111 } 1112 1113 if (ar->fw_board_len < board_data_size) { 1114 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len); 1115 ret = -EINVAL; 1116 return ret; 1117 } 1118 1119 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board, 1120 board_data_size); 1121 1122 if (ret) { 1123 ath6kl_err("Board file bmi write failed: %d\n", ret); 1124 return ret; 1125 } 1126 1127 /* record the fact that Board Data IS initialized */ 1128 param = 1; 1129 ath6kl_bmi_write(ar, 1130 ath6kl_get_hi_item_addr(ar, 1131 HI_ITEM(hi_board_data_initialized)), 1132 (u8 *)¶m, 4); 1133 1134 return ret; 1135 } 1136 1137 static int ath6kl_upload_otp(struct ath6kl *ar) 1138 { 1139 u32 address, param; 1140 int ret; 1141 1142 if (WARN_ON(ar->fw_otp == NULL)) 1143 return -ENOENT; 1144 1145 address = ar->hw.app_load_addr; 1146 1147 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp, 1148 ar->fw_otp_len); 1149 if (ret) { 1150 ath6kl_err("Failed to upload OTP file: %d\n", ret); 1151 return ret; 1152 } 1153 1154 /* read firmware start address */ 1155 ret = ath6kl_bmi_read(ar, 1156 ath6kl_get_hi_item_addr(ar, 1157 HI_ITEM(hi_app_start)), 1158 (u8 *) &address, sizeof(address)); 1159 1160 if (ret) { 1161 ath6kl_err("Failed to read hi_app_start: %d\n", ret); 1162 return ret; 1163 } 1164 1165 ar->hw.app_start_override_addr = address; 1166 1167 /* execute the OTP code */ 1168 param = 0; 1169 ath6kl_bmi_execute(ar, address, ¶m); 1170 1171 return ret; 1172 } 1173 1174 static int ath6kl_upload_firmware(struct ath6kl *ar) 1175 { 1176 u32 address; 1177 int ret; 1178 1179 if (WARN_ON(ar->fw == NULL)) 1180 return -ENOENT; 1181 1182 address = ar->hw.app_load_addr; 1183 1184 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len); 1185 1186 if (ret) { 1187 ath6kl_err("Failed to write firmware: %d\n", ret); 1188 return ret; 1189 } 1190 1191 /* 1192 * Set starting address for firmware 1193 * Don't need to setup app_start override addr on AR6004 1194 */ 1195 if (ar->target_type != TARGET_TYPE_AR6004) { 1196 address = ar->hw.app_start_override_addr; 1197 ath6kl_bmi_set_app_start(ar, address); 1198 } 1199 return ret; 1200 } 1201 1202 static int ath6kl_upload_patch(struct ath6kl *ar) 1203 { 1204 u32 address, param; 1205 int ret; 1206 1207 if (WARN_ON(ar->fw_patch == NULL)) 1208 return -ENOENT; 1209 1210 address = ar->hw.dataset_patch_addr; 1211 1212 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len); 1213 if (ret) { 1214 ath6kl_err("Failed to write patch file: %d\n", ret); 1215 return ret; 1216 } 1217 1218 param = address; 1219 ath6kl_bmi_write(ar, 1220 ath6kl_get_hi_item_addr(ar, 1221 HI_ITEM(hi_dset_list_head)), 1222 (unsigned char *) ¶m, 4); 1223 1224 return 0; 1225 } 1226 1227 static int ath6kl_init_upload(struct ath6kl *ar) 1228 { 1229 u32 param, options, sleep, address; 1230 int status = 0; 1231 1232 if (ar->target_type != TARGET_TYPE_AR6003 && 1233 ar->target_type != TARGET_TYPE_AR6004) 1234 return -EINVAL; 1235 1236 /* temporarily disable system sleep */ 1237 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1238 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1239 if (status) 1240 return status; 1241 1242 options = param; 1243 1244 param |= ATH6KL_OPTION_SLEEP_DISABLE; 1245 status = ath6kl_bmi_reg_write(ar, address, param); 1246 if (status) 1247 return status; 1248 1249 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1250 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1251 if (status) 1252 return status; 1253 1254 sleep = param; 1255 1256 param |= SM(SYSTEM_SLEEP_DISABLE, 1); 1257 status = ath6kl_bmi_reg_write(ar, address, param); 1258 if (status) 1259 return status; 1260 1261 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n", 1262 options, sleep); 1263 1264 /* program analog PLL register */ 1265 /* no need to control 40/44MHz clock on AR6004 */ 1266 if (ar->target_type != TARGET_TYPE_AR6004) { 1267 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER, 1268 0xF9104001); 1269 1270 if (status) 1271 return status; 1272 1273 /* Run at 80/88MHz by default */ 1274 param = SM(CPU_CLOCK_STANDARD, 1); 1275 1276 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS; 1277 status = ath6kl_bmi_reg_write(ar, address, param); 1278 if (status) 1279 return status; 1280 } 1281 1282 param = 0; 1283 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS; 1284 param = SM(LPO_CAL_ENABLE, 1); 1285 status = ath6kl_bmi_reg_write(ar, address, param); 1286 if (status) 1287 return status; 1288 1289 /* WAR to avoid SDIO CRC err */ 1290 if (ar->version.target_ver == AR6003_REV2_VERSION) { 1291 ath6kl_err("temporary war to avoid sdio crc error\n"); 1292 1293 param = 0x20; 1294 1295 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS; 1296 status = ath6kl_bmi_reg_write(ar, address, param); 1297 if (status) 1298 return status; 1299 1300 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS; 1301 status = ath6kl_bmi_reg_write(ar, address, param); 1302 if (status) 1303 return status; 1304 1305 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS; 1306 status = ath6kl_bmi_reg_write(ar, address, param); 1307 if (status) 1308 return status; 1309 1310 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS; 1311 status = ath6kl_bmi_reg_write(ar, address, param); 1312 if (status) 1313 return status; 1314 } 1315 1316 /* write EEPROM data to Target RAM */ 1317 status = ath6kl_upload_board_file(ar); 1318 if (status) 1319 return status; 1320 1321 /* transfer One time Programmable data */ 1322 status = ath6kl_upload_otp(ar); 1323 if (status) 1324 return status; 1325 1326 /* Download Target firmware */ 1327 status = ath6kl_upload_firmware(ar); 1328 if (status) 1329 return status; 1330 1331 status = ath6kl_upload_patch(ar); 1332 if (status) 1333 return status; 1334 1335 /* Restore system sleep */ 1336 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1337 status = ath6kl_bmi_reg_write(ar, address, sleep); 1338 if (status) 1339 return status; 1340 1341 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1342 param = options | 0x20; 1343 status = ath6kl_bmi_reg_write(ar, address, param); 1344 if (status) 1345 return status; 1346 1347 /* Configure GPIO AR6003 UART */ 1348 param = CONFIG_AR600x_DEBUG_UART_TX_PIN; 1349 status = ath6kl_bmi_write(ar, 1350 ath6kl_get_hi_item_addr(ar, 1351 HI_ITEM(hi_dbg_uart_txpin)), 1352 (u8 *)¶m, 4); 1353 1354 return status; 1355 } 1356 1357 static int ath6kl_init_hw_params(struct ath6kl *ar) 1358 { 1359 switch (ar->version.target_ver) { 1360 case AR6003_REV2_VERSION: 1361 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1362 ar->hw.app_load_addr = AR6003_REV2_APP_LOAD_ADDRESS; 1363 ar->hw.board_ext_data_addr = AR6003_REV2_BOARD_EXT_DATA_ADDRESS; 1364 ar->hw.reserved_ram_size = AR6003_REV2_RAM_RESERVE_SIZE; 1365 break; 1366 case AR6003_REV3_VERSION: 1367 ar->hw.dataset_patch_addr = AR6003_REV3_DATASET_PATCH_ADDRESS; 1368 ar->hw.app_load_addr = 0x1234; 1369 ar->hw.board_ext_data_addr = AR6003_REV3_BOARD_EXT_DATA_ADDRESS; 1370 ar->hw.reserved_ram_size = AR6003_REV3_RAM_RESERVE_SIZE; 1371 break; 1372 case AR6004_REV1_VERSION: 1373 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1374 ar->hw.app_load_addr = AR6003_REV3_APP_LOAD_ADDRESS; 1375 ar->hw.board_ext_data_addr = AR6004_REV1_BOARD_EXT_DATA_ADDRESS; 1376 ar->hw.reserved_ram_size = AR6004_REV1_RAM_RESERVE_SIZE; 1377 break; 1378 default: 1379 ath6kl_err("Unsupported hardware version: 0x%x\n", 1380 ar->version.target_ver); 1381 return -EINVAL; 1382 } 1383 1384 return 0; 1385 } 1386 1387 static int ath6kl_init(struct net_device *dev) 1388 { 1389 struct ath6kl *ar = ath6kl_priv(dev); 1390 int status = 0; 1391 s32 timeleft; 1392 1393 if (!ar) 1394 return -EIO; 1395 1396 /* Do we need to finish the BMI phase */ 1397 if (ath6kl_bmi_done(ar)) { 1398 status = -EIO; 1399 goto ath6kl_init_done; 1400 } 1401 1402 /* Indicate that WMI is enabled (although not ready yet) */ 1403 set_bit(WMI_ENABLED, &ar->flag); 1404 ar->wmi = ath6kl_wmi_init(ar); 1405 if (!ar->wmi) { 1406 ath6kl_err("failed to initialize wmi\n"); 1407 status = -EIO; 1408 goto ath6kl_init_done; 1409 } 1410 1411 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 1412 1413 wlan_node_table_init(&ar->scan_table); 1414 1415 /* 1416 * The reason we have to wait for the target here is that the 1417 * driver layer has to init BMI in order to set the host block 1418 * size. 1419 */ 1420 if (ath6kl_htc_wait_target(ar->htc_target)) { 1421 status = -EIO; 1422 goto err_node_cleanup; 1423 } 1424 1425 if (ath6kl_init_service_ep(ar)) { 1426 status = -EIO; 1427 goto err_cleanup_scatter; 1428 } 1429 1430 /* setup access class priority mappings */ 1431 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 1432 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 1433 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 1434 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 1435 1436 /* give our connected endpoints some buffers */ 1437 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 1438 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 1439 1440 /* allocate some buffers that handle larger AMSDU frames */ 1441 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 1442 1443 /* setup credit distribution */ 1444 ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info); 1445 1446 ath6kl_cookie_init(ar); 1447 1448 /* start HTC */ 1449 status = ath6kl_htc_start(ar->htc_target); 1450 1451 if (status) { 1452 ath6kl_cookie_cleanup(ar); 1453 goto err_rxbuf_cleanup; 1454 } 1455 1456 /* Wait for Wmi event to be ready */ 1457 timeleft = wait_event_interruptible_timeout(ar->event_wq, 1458 test_bit(WMI_READY, 1459 &ar->flag), 1460 WMI_TIMEOUT); 1461 1462 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { 1463 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", 1464 ATH6KL_ABI_VERSION, ar->version.abi_ver); 1465 status = -EIO; 1466 goto err_htc_stop; 1467 } 1468 1469 if (!timeleft || signal_pending(current)) { 1470 ath6kl_err("wmi is not ready or wait was interrupted\n"); 1471 status = -EIO; 1472 goto err_htc_stop; 1473 } 1474 1475 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); 1476 1477 /* communicate the wmi protocol verision to the target */ 1478 if ((ath6kl_set_host_app_area(ar)) != 0) 1479 ath6kl_err("unable to set the host app area\n"); 1480 1481 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 1482 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 1483 1484 status = ath6kl_target_config_wlan_params(ar); 1485 if (!status) 1486 goto ath6kl_init_done; 1487 1488 err_htc_stop: 1489 ath6kl_htc_stop(ar->htc_target); 1490 err_rxbuf_cleanup: 1491 ath6kl_htc_flush_rx_buf(ar->htc_target); 1492 ath6kl_cleanup_amsdu_rxbufs(ar); 1493 err_cleanup_scatter: 1494 ath6kl_hif_cleanup_scatter(ar); 1495 err_node_cleanup: 1496 wlan_node_table_cleanup(&ar->scan_table); 1497 ath6kl_wmi_shutdown(ar->wmi); 1498 clear_bit(WMI_ENABLED, &ar->flag); 1499 ar->wmi = NULL; 1500 1501 ath6kl_init_done: 1502 return status; 1503 } 1504 1505 int ath6kl_core_init(struct ath6kl *ar) 1506 { 1507 int ret = 0; 1508 struct ath6kl_bmi_target_info targ_info; 1509 1510 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 1511 if (!ar->ath6kl_wq) 1512 return -ENOMEM; 1513 1514 ret = ath6kl_bmi_init(ar); 1515 if (ret) 1516 goto err_wq; 1517 1518 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 1519 if (ret) 1520 goto err_bmi_cleanup; 1521 1522 ar->version.target_ver = le32_to_cpu(targ_info.version); 1523 ar->target_type = le32_to_cpu(targ_info.type); 1524 ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version); 1525 1526 ret = ath6kl_init_hw_params(ar); 1527 if (ret) 1528 goto err_bmi_cleanup; 1529 1530 ret = ath6kl_configure_target(ar); 1531 if (ret) 1532 goto err_bmi_cleanup; 1533 1534 ar->htc_target = ath6kl_htc_create(ar); 1535 1536 if (!ar->htc_target) { 1537 ret = -ENOMEM; 1538 goto err_bmi_cleanup; 1539 } 1540 1541 ar->aggr_cntxt = aggr_init(ar->net_dev); 1542 if (!ar->aggr_cntxt) { 1543 ath6kl_err("failed to initialize aggr\n"); 1544 ret = -ENOMEM; 1545 goto err_htc_cleanup; 1546 } 1547 1548 ret = ath6kl_fetch_firmwares(ar); 1549 if (ret) 1550 goto err_htc_cleanup; 1551 1552 ret = ath6kl_init_upload(ar); 1553 if (ret) 1554 goto err_htc_cleanup; 1555 1556 ret = ath6kl_init(ar->net_dev); 1557 if (ret) 1558 goto err_htc_cleanup; 1559 1560 /* This runs the init function if registered */ 1561 ret = register_netdev(ar->net_dev); 1562 if (ret) { 1563 ath6kl_err("register_netdev failed\n"); 1564 ath6kl_destroy(ar->net_dev, 0); 1565 return ret; 1566 } 1567 1568 set_bit(NETDEV_REGISTERED, &ar->flag); 1569 1570 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 1571 __func__, ar->net_dev->name, ar->net_dev, ar); 1572 1573 return ret; 1574 1575 err_htc_cleanup: 1576 ath6kl_htc_cleanup(ar->htc_target); 1577 err_bmi_cleanup: 1578 ath6kl_bmi_cleanup(ar); 1579 err_wq: 1580 destroy_workqueue(ar->ath6kl_wq); 1581 return ret; 1582 } 1583 1584 void ath6kl_stop_txrx(struct ath6kl *ar) 1585 { 1586 struct net_device *ndev = ar->net_dev; 1587 1588 if (!ndev) 1589 return; 1590 1591 set_bit(DESTROY_IN_PROGRESS, &ar->flag); 1592 1593 if (down_interruptible(&ar->sem)) { 1594 ath6kl_err("down_interruptible failed\n"); 1595 return; 1596 } 1597 1598 if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR) 1599 ath6kl_stop_endpoint(ndev, false, true); 1600 1601 clear_bit(WLAN_ENABLED, &ar->flag); 1602 } 1603 1604 /* 1605 * We need to differentiate between the surprise and planned removal of the 1606 * device because of the following consideration: 1607 * 1608 * - In case of surprise removal, the hcd already frees up the pending 1609 * for the device and hence there is no need to unregister the function 1610 * driver inorder to get these requests. For planned removal, the function 1611 * driver has to explicitly unregister itself to have the hcd return all the 1612 * pending requests before the data structures for the devices are freed up. 1613 * Note that as per the current implementation, the function driver will 1614 * end up releasing all the devices since there is no API to selectively 1615 * release a particular device. 1616 * 1617 * - Certain commands issued to the target can be skipped for surprise 1618 * removal since they will anyway not go through. 1619 */ 1620 void ath6kl_destroy(struct net_device *dev, unsigned int unregister) 1621 { 1622 struct ath6kl *ar; 1623 1624 if (!dev || !ath6kl_priv(dev)) { 1625 ath6kl_err("failed to get device structure\n"); 1626 return; 1627 } 1628 1629 ar = ath6kl_priv(dev); 1630 1631 destroy_workqueue(ar->ath6kl_wq); 1632 1633 if (ar->htc_target) 1634 ath6kl_htc_cleanup(ar->htc_target); 1635 1636 aggr_module_destroy(ar->aggr_cntxt); 1637 1638 ath6kl_cookie_cleanup(ar); 1639 1640 ath6kl_cleanup_amsdu_rxbufs(ar); 1641 1642 ath6kl_bmi_cleanup(ar); 1643 1644 ath6kl_debug_cleanup(ar); 1645 1646 if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) { 1647 unregister_netdev(dev); 1648 clear_bit(NETDEV_REGISTERED, &ar->flag); 1649 } 1650 1651 free_netdev(dev); 1652 1653 wlan_node_table_cleanup(&ar->scan_table); 1654 1655 kfree(ar->fw_board); 1656 kfree(ar->fw_otp); 1657 kfree(ar->fw); 1658 kfree(ar->fw_patch); 1659 1660 ath6kl_cfg80211_deinit(ar); 1661 } 1662