1 2 /* 3 * Copyright (c) 2011 Atheros Communications Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <linux/moduleparam.h> 19 #include <linux/of.h> 20 #include <linux/mmc/sdio_func.h> 21 #include "core.h" 22 #include "cfg80211.h" 23 #include "target.h" 24 #include "debug.h" 25 #include "hif-ops.h" 26 27 unsigned int debug_mask; 28 static unsigned int testmode; 29 30 module_param(debug_mask, uint, 0644); 31 module_param(testmode, uint, 0644); 32 33 /* 34 * Include definitions here that can be used to tune the WLAN module 35 * behavior. Different customers can tune the behavior as per their needs, 36 * here. 37 */ 38 39 /* 40 * This configuration item enable/disable keepalive support. 41 * Keepalive support: In the absence of any data traffic to AP, null 42 * frames will be sent to the AP at periodic interval, to keep the association 43 * active. This configuration item defines the periodic interval. 44 * Use value of zero to disable keepalive support 45 * Default: 60 seconds 46 */ 47 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60 48 49 /* 50 * This configuration item sets the value of disconnect timeout 51 * Firmware delays sending the disconnec event to the host for this 52 * timeout after is gets disconnected from the current AP. 53 * If the firmware successly roams within the disconnect timeout 54 * it sends a new connect event 55 */ 56 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10 57 58 #define CONFIG_AR600x_DEBUG_UART_TX_PIN 8 59 60 #define ATH6KL_DATA_OFFSET 64 61 struct sk_buff *ath6kl_buf_alloc(int size) 62 { 63 struct sk_buff *skb; 64 u16 reserved; 65 66 /* Add chacheline space at front and back of buffer */ 67 reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET + 68 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES; 69 skb = dev_alloc_skb(size + reserved); 70 71 if (skb) 72 skb_reserve(skb, reserved - L1_CACHE_BYTES); 73 return skb; 74 } 75 76 void ath6kl_init_profile_info(struct ath6kl *ar) 77 { 78 ar->ssid_len = 0; 79 memset(ar->ssid, 0, sizeof(ar->ssid)); 80 81 ar->dot11_auth_mode = OPEN_AUTH; 82 ar->auth_mode = NONE_AUTH; 83 ar->prwise_crypto = NONE_CRYPT; 84 ar->prwise_crypto_len = 0; 85 ar->grp_crypto = NONE_CRYPT; 86 ar->grp_crypto_len = 0; 87 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); 88 memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); 89 memset(ar->bssid, 0, sizeof(ar->bssid)); 90 ar->bss_ch = 0; 91 ar->nw_type = ar->next_mode = INFRA_NETWORK; 92 } 93 94 static u8 ath6kl_get_fw_iftype(struct ath6kl *ar) 95 { 96 switch (ar->nw_type) { 97 case INFRA_NETWORK: 98 return HI_OPTION_FW_MODE_BSS_STA; 99 case ADHOC_NETWORK: 100 return HI_OPTION_FW_MODE_IBSS; 101 case AP_NETWORK: 102 return HI_OPTION_FW_MODE_AP; 103 default: 104 ath6kl_err("Unsupported interface type :%d\n", ar->nw_type); 105 return 0xff; 106 } 107 } 108 109 static int ath6kl_set_host_app_area(struct ath6kl *ar) 110 { 111 u32 address, data; 112 struct host_app_area host_app_area; 113 114 /* Fetch the address of the host_app_area_s 115 * instance in the host interest area */ 116 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest)); 117 address = TARG_VTOP(ar->target_type, address); 118 119 if (ath6kl_diag_read32(ar, address, &data)) 120 return -EIO; 121 122 address = TARG_VTOP(ar->target_type, data); 123 host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION); 124 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area, 125 sizeof(struct host_app_area))) 126 return -EIO; 127 128 return 0; 129 } 130 131 static inline void set_ac2_ep_map(struct ath6kl *ar, 132 u8 ac, 133 enum htc_endpoint_id ep) 134 { 135 ar->ac2ep_map[ac] = ep; 136 ar->ep2ac_map[ep] = ac; 137 } 138 139 /* connect to a service */ 140 static int ath6kl_connectservice(struct ath6kl *ar, 141 struct htc_service_connect_req *con_req, 142 char *desc) 143 { 144 int status; 145 struct htc_service_connect_resp response; 146 147 memset(&response, 0, sizeof(response)); 148 149 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response); 150 if (status) { 151 ath6kl_err("failed to connect to %s service status:%d\n", 152 desc, status); 153 return status; 154 } 155 156 switch (con_req->svc_id) { 157 case WMI_CONTROL_SVC: 158 if (test_bit(WMI_ENABLED, &ar->flag)) 159 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint); 160 ar->ctrl_ep = response.endpoint; 161 break; 162 case WMI_DATA_BE_SVC: 163 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint); 164 break; 165 case WMI_DATA_BK_SVC: 166 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint); 167 break; 168 case WMI_DATA_VI_SVC: 169 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint); 170 break; 171 case WMI_DATA_VO_SVC: 172 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint); 173 break; 174 default: 175 ath6kl_err("service id is not mapped %d\n", con_req->svc_id); 176 return -EINVAL; 177 } 178 179 return 0; 180 } 181 182 static int ath6kl_init_service_ep(struct ath6kl *ar) 183 { 184 struct htc_service_connect_req connect; 185 186 memset(&connect, 0, sizeof(connect)); 187 188 /* these fields are the same for all service endpoints */ 189 connect.ep_cb.rx = ath6kl_rx; 190 connect.ep_cb.rx_refill = ath6kl_rx_refill; 191 connect.ep_cb.tx_full = ath6kl_tx_queue_full; 192 193 /* 194 * Set the max queue depth so that our ath6kl_tx_queue_full handler 195 * gets called. 196 */ 197 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH; 198 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4; 199 if (!connect.ep_cb.rx_refill_thresh) 200 connect.ep_cb.rx_refill_thresh++; 201 202 /* connect to control service */ 203 connect.svc_id = WMI_CONTROL_SVC; 204 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL")) 205 return -EIO; 206 207 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN; 208 209 /* 210 * Limit the HTC message size on the send path, although e can 211 * receive A-MSDU frames of 4K, we will only send ethernet-sized 212 * (802.3) frames on the send path. 213 */ 214 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH; 215 216 /* 217 * To reduce the amount of committed memory for larger A_MSDU 218 * frames, use the recv-alloc threshold mechanism for larger 219 * packets. 220 */ 221 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE; 222 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf; 223 224 /* 225 * For the remaining data services set the connection flag to 226 * reduce dribbling, if configured to do so. 227 */ 228 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB; 229 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK; 230 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF; 231 232 connect.svc_id = WMI_DATA_BE_SVC; 233 234 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE")) 235 return -EIO; 236 237 /* connect to back-ground map this to WMI LOW_PRI */ 238 connect.svc_id = WMI_DATA_BK_SVC; 239 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK")) 240 return -EIO; 241 242 /* connect to Video service, map this to to HI PRI */ 243 connect.svc_id = WMI_DATA_VI_SVC; 244 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI")) 245 return -EIO; 246 247 /* 248 * Connect to VO service, this is currently not mapped to a WMI 249 * priority stream due to historical reasons. WMI originally 250 * defined 3 priorities over 3 mailboxes We can change this when 251 * WMI is reworked so that priorities are not dependent on 252 * mailboxes. 253 */ 254 connect.svc_id = WMI_DATA_VO_SVC; 255 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO")) 256 return -EIO; 257 258 return 0; 259 } 260 261 static void ath6kl_init_control_info(struct ath6kl *ar) 262 { 263 u8 ctr; 264 265 clear_bit(WMI_ENABLED, &ar->flag); 266 ath6kl_init_profile_info(ar); 267 ar->def_txkey_index = 0; 268 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); 269 ar->ch_hint = 0; 270 ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL; 271 ar->listen_intvl_b = 0; 272 ar->tx_pwr = 0; 273 clear_bit(SKIP_SCAN, &ar->flag); 274 set_bit(WMM_ENABLED, &ar->flag); 275 ar->intra_bss = 1; 276 memset(&ar->sc_params, 0, sizeof(ar->sc_params)); 277 ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT; 278 ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS; 279 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 280 281 memset((u8 *)ar->sta_list, 0, 282 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 283 284 spin_lock_init(&ar->mcastpsq_lock); 285 286 /* Init the PS queues */ 287 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 288 spin_lock_init(&ar->sta_list[ctr].psq_lock); 289 skb_queue_head_init(&ar->sta_list[ctr].psq); 290 } 291 292 skb_queue_head_init(&ar->mcastpsq); 293 294 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 295 } 296 297 /* 298 * Set HTC/Mbox operational parameters, this can only be called when the 299 * target is in the BMI phase. 300 */ 301 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val, 302 u8 htc_ctrl_buf) 303 { 304 int status; 305 u32 blk_size; 306 307 blk_size = ar->mbox_info.block_size; 308 309 if (htc_ctrl_buf) 310 blk_size |= ((u32)htc_ctrl_buf) << 16; 311 312 /* set the host interest area for the block size */ 313 status = ath6kl_bmi_write(ar, 314 ath6kl_get_hi_item_addr(ar, 315 HI_ITEM(hi_mbox_io_block_sz)), 316 (u8 *)&blk_size, 317 4); 318 if (status) { 319 ath6kl_err("bmi_write_memory for IO block size failed\n"); 320 goto out; 321 } 322 323 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n", 324 blk_size, 325 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz))); 326 327 if (mbox_isr_yield_val) { 328 /* set the host interest area for the mbox ISR yield limit */ 329 status = ath6kl_bmi_write(ar, 330 ath6kl_get_hi_item_addr(ar, 331 HI_ITEM(hi_mbox_isr_yield_limit)), 332 (u8 *)&mbox_isr_yield_val, 333 4); 334 if (status) { 335 ath6kl_err("bmi_write_memory for yield limit failed\n"); 336 goto out; 337 } 338 } 339 340 out: 341 return status; 342 } 343 344 #define REG_DUMP_COUNT_AR6003 60 345 #define REGISTER_DUMP_LEN_MAX 60 346 347 static void ath6kl_dump_target_assert_info(struct ath6kl *ar) 348 { 349 u32 address; 350 u32 regdump_loc = 0; 351 int status; 352 u32 regdump_val[REGISTER_DUMP_LEN_MAX]; 353 u32 i; 354 355 if (ar->target_type != TARGET_TYPE_AR6003) 356 return; 357 358 /* the reg dump pointer is copied to the host interest area */ 359 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state)); 360 address = TARG_VTOP(ar->target_type, address); 361 362 /* read RAM location through diagnostic window */ 363 status = ath6kl_diag_read32(ar, address, ®dump_loc); 364 365 if (status || !regdump_loc) { 366 ath6kl_err("failed to get ptr to register dump area\n"); 367 return; 368 } 369 370 ath6kl_dbg(ATH6KL_DBG_TRC, "location of register dump data: 0x%X\n", 371 regdump_loc); 372 regdump_loc = TARG_VTOP(ar->target_type, regdump_loc); 373 374 /* fetch register dump data */ 375 status = ath6kl_diag_read(ar, regdump_loc, (u8 *)®dump_val[0], 376 REG_DUMP_COUNT_AR6003 * (sizeof(u32))); 377 378 if (status) { 379 ath6kl_err("failed to get register dump\n"); 380 return; 381 } 382 ath6kl_dbg(ATH6KL_DBG_TRC, "Register Dump:\n"); 383 384 for (i = 0; i < REG_DUMP_COUNT_AR6003; i++) 385 ath6kl_dbg(ATH6KL_DBG_TRC, " %d : 0x%8.8X\n", 386 i, regdump_val[i]); 387 388 } 389 390 void ath6kl_target_failure(struct ath6kl *ar) 391 { 392 ath6kl_err("target asserted\n"); 393 394 /* try dumping target assertion information (if any) */ 395 ath6kl_dump_target_assert_info(ar); 396 397 } 398 399 static int ath6kl_target_config_wlan_params(struct ath6kl *ar) 400 { 401 int status = 0; 402 int ret; 403 404 /* 405 * Configure the device for rx dot11 header rules. "0,0" are the 406 * default values. Required if checksum offload is needed. Set 407 * RxMetaVersion to 2. 408 */ 409 if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, 410 ar->rx_meta_ver, 0, 0)) { 411 ath6kl_err("unable to set the rx frame format\n"); 412 status = -EIO; 413 } 414 415 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) 416 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, 0, 1, 0, 0, 1, 417 IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) { 418 ath6kl_err("unable to set power save fail event policy\n"); 419 status = -EIO; 420 } 421 422 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) 423 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, 0, 424 WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) { 425 ath6kl_err("unable to set barker preamble policy\n"); 426 status = -EIO; 427 } 428 429 if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, 430 WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) { 431 ath6kl_err("unable to set keep alive interval\n"); 432 status = -EIO; 433 } 434 435 if (ath6kl_wmi_disctimeout_cmd(ar->wmi, 436 WLAN_CONFIG_DISCONNECT_TIMEOUT)) { 437 ath6kl_err("unable to set disconnect timeout\n"); 438 status = -EIO; 439 } 440 441 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) 442 if (ath6kl_wmi_set_wmm_txop(ar->wmi, WMI_TXOP_DISABLED)) { 443 ath6kl_err("unable to set txop bursting\n"); 444 status = -EIO; 445 } 446 447 if (ar->p2p) { 448 ret = ath6kl_wmi_info_req_cmd(ar->wmi, 449 P2P_FLAG_CAPABILITIES_REQ | 450 P2P_FLAG_MACADDR_REQ | 451 P2P_FLAG_HMODEL_REQ); 452 if (ret) { 453 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P " 454 "capabilities (%d) - assuming P2P not " 455 "supported\n", ret); 456 ar->p2p = 0; 457 } 458 } 459 460 if (ar->p2p) { 461 /* Enable Probe Request reporting for P2P */ 462 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, true); 463 if (ret) { 464 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe " 465 "Request reporting (%d)\n", ret); 466 } 467 } 468 469 return status; 470 } 471 472 int ath6kl_configure_target(struct ath6kl *ar) 473 { 474 u32 param, ram_reserved_size; 475 u8 fw_iftype; 476 477 fw_iftype = ath6kl_get_fw_iftype(ar); 478 if (fw_iftype == 0xff) 479 return -EINVAL; 480 481 /* Tell target which HTC version it is used*/ 482 param = HTC_PROTOCOL_VERSION; 483 if (ath6kl_bmi_write(ar, 484 ath6kl_get_hi_item_addr(ar, 485 HI_ITEM(hi_app_host_interest)), 486 (u8 *)¶m, 4) != 0) { 487 ath6kl_err("bmi_write_memory for htc version failed\n"); 488 return -EIO; 489 } 490 491 /* set the firmware mode to STA/IBSS/AP */ 492 param = 0; 493 494 if (ath6kl_bmi_read(ar, 495 ath6kl_get_hi_item_addr(ar, 496 HI_ITEM(hi_option_flag)), 497 (u8 *)¶m, 4) != 0) { 498 ath6kl_err("bmi_read_memory for setting fwmode failed\n"); 499 return -EIO; 500 } 501 502 param |= (1 << HI_OPTION_NUM_DEV_SHIFT); 503 param |= (fw_iftype << HI_OPTION_FW_MODE_SHIFT); 504 if (ar->p2p && fw_iftype == HI_OPTION_FW_MODE_BSS_STA) { 505 param |= HI_OPTION_FW_SUBMODE_P2PDEV << 506 HI_OPTION_FW_SUBMODE_SHIFT; 507 } 508 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT); 509 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT); 510 511 if (ath6kl_bmi_write(ar, 512 ath6kl_get_hi_item_addr(ar, 513 HI_ITEM(hi_option_flag)), 514 (u8 *)¶m, 515 4) != 0) { 516 ath6kl_err("bmi_write_memory for setting fwmode failed\n"); 517 return -EIO; 518 } 519 520 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n"); 521 522 /* 523 * Hardcode the address use for the extended board data 524 * Ideally this should be pre-allocate by the OS at boot time 525 * But since it is a new feature and board data is loaded 526 * at init time, we have to workaround this from host. 527 * It is difficult to patch the firmware boot code, 528 * but possible in theory. 529 */ 530 531 param = ar->hw.board_ext_data_addr; 532 ram_reserved_size = ar->hw.reserved_ram_size; 533 534 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar, 535 HI_ITEM(hi_board_ext_data)), 536 (u8 *)¶m, 4) != 0) { 537 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n"); 538 return -EIO; 539 } 540 541 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar, 542 HI_ITEM(hi_end_ram_reserve_sz)), 543 (u8 *)&ram_reserved_size, 4) != 0) { 544 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n"); 545 return -EIO; 546 } 547 548 /* set the block size for the target */ 549 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0)) 550 /* use default number of control buffers */ 551 return -EIO; 552 553 return 0; 554 } 555 556 struct ath6kl *ath6kl_core_alloc(struct device *sdev) 557 { 558 struct net_device *dev; 559 struct ath6kl *ar; 560 struct wireless_dev *wdev; 561 562 wdev = ath6kl_cfg80211_init(sdev); 563 if (!wdev) { 564 ath6kl_err("ath6kl_cfg80211_init failed\n"); 565 return NULL; 566 } 567 568 ar = wdev_priv(wdev); 569 ar->dev = sdev; 570 ar->wdev = wdev; 571 wdev->iftype = NL80211_IFTYPE_STATION; 572 573 if (ath6kl_debug_init(ar)) { 574 ath6kl_err("Failed to initialize debugfs\n"); 575 ath6kl_cfg80211_deinit(ar); 576 return NULL; 577 } 578 579 dev = alloc_netdev(0, "wlan%d", ether_setup); 580 if (!dev) { 581 ath6kl_err("no memory for network device instance\n"); 582 ath6kl_cfg80211_deinit(ar); 583 return NULL; 584 } 585 586 dev->ieee80211_ptr = wdev; 587 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy)); 588 wdev->netdev = dev; 589 ar->sme_state = SME_DISCONNECTED; 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, i, index, bit; 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 ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n", 963 ie_len); 964 965 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL); 966 967 if (ar->fw_otp == NULL) { 968 ret = -ENOMEM; 969 goto out; 970 } 971 972 ar->fw_otp_len = ie_len; 973 break; 974 case ATH6KL_FW_IE_FW_IMAGE: 975 ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n", 976 ie_len); 977 978 ar->fw = kmemdup(data, ie_len, GFP_KERNEL); 979 980 if (ar->fw == NULL) { 981 ret = -ENOMEM; 982 goto out; 983 } 984 985 ar->fw_len = ie_len; 986 break; 987 case ATH6KL_FW_IE_PATCH_IMAGE: 988 ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n", 989 ie_len); 990 991 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL); 992 993 if (ar->fw_patch == NULL) { 994 ret = -ENOMEM; 995 goto out; 996 } 997 998 ar->fw_patch_len = ie_len; 999 break; 1000 case ATH6KL_FW_IE_RESERVED_RAM_SIZE: 1001 val = (__le32 *) data; 1002 ar->hw.reserved_ram_size = le32_to_cpup(val); 1003 1004 ath6kl_dbg(ATH6KL_DBG_BOOT, 1005 "found reserved ram size ie 0x%d\n", 1006 ar->hw.reserved_ram_size); 1007 break; 1008 case ATH6KL_FW_IE_CAPABILITIES: 1009 ath6kl_dbg(ATH6KL_DBG_BOOT, 1010 "found firmware capabilities ie (%zd B)\n", 1011 ie_len); 1012 1013 for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) { 1014 index = ALIGN(i, 8) / 8; 1015 bit = i % 8; 1016 1017 if (data[index] & (1 << bit)) 1018 __set_bit(i, ar->fw_capabilities); 1019 } 1020 1021 ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "", 1022 ar->fw_capabilities, 1023 sizeof(ar->fw_capabilities)); 1024 break; 1025 case ATH6KL_FW_IE_PATCH_ADDR: 1026 if (ie_len != sizeof(*val)) 1027 break; 1028 1029 val = (__le32 *) data; 1030 ar->hw.dataset_patch_addr = le32_to_cpup(val); 1031 1032 ath6kl_dbg(ATH6KL_DBG_BOOT, 1033 "found patch address ie 0x%d\n", 1034 ar->hw.dataset_patch_addr); 1035 break; 1036 default: 1037 ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n", 1038 le32_to_cpup(&hdr->id)); 1039 break; 1040 } 1041 1042 len -= ie_len; 1043 data += ie_len; 1044 }; 1045 1046 ret = 0; 1047 out: 1048 release_firmware(fw); 1049 1050 return ret; 1051 } 1052 1053 static int ath6kl_fetch_firmwares(struct ath6kl *ar) 1054 { 1055 int ret; 1056 1057 ret = ath6kl_fetch_board_file(ar); 1058 if (ret) 1059 return ret; 1060 1061 ret = ath6kl_fetch_fw_api2(ar); 1062 if (ret == 0) { 1063 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 2\n"); 1064 return 0; 1065 } 1066 1067 ret = ath6kl_fetch_fw_api1(ar); 1068 if (ret) 1069 return ret; 1070 1071 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 1\n"); 1072 1073 return 0; 1074 } 1075 1076 static int ath6kl_upload_board_file(struct ath6kl *ar) 1077 { 1078 u32 board_address, board_ext_address, param; 1079 u32 board_data_size, board_ext_data_size; 1080 int ret; 1081 1082 if (WARN_ON(ar->fw_board == NULL)) 1083 return -ENOENT; 1084 1085 /* 1086 * Determine where in Target RAM to write Board Data. 1087 * For AR6004, host determine Target RAM address for 1088 * writing board data. 1089 */ 1090 if (ar->target_type == TARGET_TYPE_AR6004) { 1091 board_address = AR6004_REV1_BOARD_DATA_ADDRESS; 1092 ath6kl_bmi_write(ar, 1093 ath6kl_get_hi_item_addr(ar, 1094 HI_ITEM(hi_board_data)), 1095 (u8 *) &board_address, 4); 1096 } else { 1097 ath6kl_bmi_read(ar, 1098 ath6kl_get_hi_item_addr(ar, 1099 HI_ITEM(hi_board_data)), 1100 (u8 *) &board_address, 4); 1101 } 1102 1103 /* determine where in target ram to write extended board data */ 1104 ath6kl_bmi_read(ar, 1105 ath6kl_get_hi_item_addr(ar, 1106 HI_ITEM(hi_board_ext_data)), 1107 (u8 *) &board_ext_address, 4); 1108 1109 if (board_ext_address == 0) { 1110 ath6kl_err("Failed to get board file target address.\n"); 1111 return -EINVAL; 1112 } 1113 1114 switch (ar->target_type) { 1115 case TARGET_TYPE_AR6003: 1116 board_data_size = AR6003_BOARD_DATA_SZ; 1117 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ; 1118 break; 1119 case TARGET_TYPE_AR6004: 1120 board_data_size = AR6004_BOARD_DATA_SZ; 1121 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ; 1122 break; 1123 default: 1124 WARN_ON(1); 1125 return -EINVAL; 1126 break; 1127 } 1128 1129 if (ar->fw_board_len == (board_data_size + 1130 board_ext_data_size)) { 1131 1132 /* write extended board data */ 1133 ath6kl_dbg(ATH6KL_DBG_BOOT, 1134 "writing extended board data to 0x%x (%d B)\n", 1135 board_ext_address, board_ext_data_size); 1136 1137 ret = ath6kl_bmi_write(ar, board_ext_address, 1138 ar->fw_board + board_data_size, 1139 board_ext_data_size); 1140 if (ret) { 1141 ath6kl_err("Failed to write extended board data: %d\n", 1142 ret); 1143 return ret; 1144 } 1145 1146 /* record that extended board data is initialized */ 1147 param = (board_ext_data_size << 16) | 1; 1148 1149 ath6kl_bmi_write(ar, 1150 ath6kl_get_hi_item_addr(ar, 1151 HI_ITEM(hi_board_ext_data_config)), 1152 (unsigned char *) ¶m, 4); 1153 } 1154 1155 if (ar->fw_board_len < board_data_size) { 1156 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len); 1157 ret = -EINVAL; 1158 return ret; 1159 } 1160 1161 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n", 1162 board_address, board_data_size); 1163 1164 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board, 1165 board_data_size); 1166 1167 if (ret) { 1168 ath6kl_err("Board file bmi write failed: %d\n", ret); 1169 return ret; 1170 } 1171 1172 /* record the fact that Board Data IS initialized */ 1173 param = 1; 1174 ath6kl_bmi_write(ar, 1175 ath6kl_get_hi_item_addr(ar, 1176 HI_ITEM(hi_board_data_initialized)), 1177 (u8 *)¶m, 4); 1178 1179 return ret; 1180 } 1181 1182 static int ath6kl_upload_otp(struct ath6kl *ar) 1183 { 1184 u32 address, param; 1185 int ret; 1186 1187 if (WARN_ON(ar->fw_otp == NULL)) 1188 return -ENOENT; 1189 1190 address = ar->hw.app_load_addr; 1191 1192 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address, 1193 ar->fw_otp_len); 1194 1195 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp, 1196 ar->fw_otp_len); 1197 if (ret) { 1198 ath6kl_err("Failed to upload OTP file: %d\n", ret); 1199 return ret; 1200 } 1201 1202 /* read firmware start address */ 1203 ret = ath6kl_bmi_read(ar, 1204 ath6kl_get_hi_item_addr(ar, 1205 HI_ITEM(hi_app_start)), 1206 (u8 *) &address, sizeof(address)); 1207 1208 if (ret) { 1209 ath6kl_err("Failed to read hi_app_start: %d\n", ret); 1210 return ret; 1211 } 1212 1213 ar->hw.app_start_override_addr = address; 1214 1215 ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr 0x%x\n", 1216 ar->hw.app_start_override_addr); 1217 1218 /* execute the OTP code */ 1219 ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n", address); 1220 param = 0; 1221 ath6kl_bmi_execute(ar, address, ¶m); 1222 1223 return ret; 1224 } 1225 1226 static int ath6kl_upload_firmware(struct ath6kl *ar) 1227 { 1228 u32 address; 1229 int ret; 1230 1231 if (WARN_ON(ar->fw == NULL)) 1232 return -ENOENT; 1233 1234 address = ar->hw.app_load_addr; 1235 1236 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n", 1237 address, ar->fw_len); 1238 1239 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len); 1240 1241 if (ret) { 1242 ath6kl_err("Failed to write firmware: %d\n", ret); 1243 return ret; 1244 } 1245 1246 /* 1247 * Set starting address for firmware 1248 * Don't need to setup app_start override addr on AR6004 1249 */ 1250 if (ar->target_type != TARGET_TYPE_AR6004) { 1251 address = ar->hw.app_start_override_addr; 1252 ath6kl_bmi_set_app_start(ar, address); 1253 } 1254 return ret; 1255 } 1256 1257 static int ath6kl_upload_patch(struct ath6kl *ar) 1258 { 1259 u32 address, param; 1260 int ret; 1261 1262 if (WARN_ON(ar->fw_patch == NULL)) 1263 return -ENOENT; 1264 1265 address = ar->hw.dataset_patch_addr; 1266 1267 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n", 1268 address, ar->fw_patch_len); 1269 1270 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len); 1271 if (ret) { 1272 ath6kl_err("Failed to write patch file: %d\n", ret); 1273 return ret; 1274 } 1275 1276 param = address; 1277 ath6kl_bmi_write(ar, 1278 ath6kl_get_hi_item_addr(ar, 1279 HI_ITEM(hi_dset_list_head)), 1280 (unsigned char *) ¶m, 4); 1281 1282 return 0; 1283 } 1284 1285 static int ath6kl_init_upload(struct ath6kl *ar) 1286 { 1287 u32 param, options, sleep, address; 1288 int status = 0; 1289 1290 if (ar->target_type != TARGET_TYPE_AR6003 && 1291 ar->target_type != TARGET_TYPE_AR6004) 1292 return -EINVAL; 1293 1294 /* temporarily disable system sleep */ 1295 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1296 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1297 if (status) 1298 return status; 1299 1300 options = param; 1301 1302 param |= ATH6KL_OPTION_SLEEP_DISABLE; 1303 status = ath6kl_bmi_reg_write(ar, address, param); 1304 if (status) 1305 return status; 1306 1307 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1308 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1309 if (status) 1310 return status; 1311 1312 sleep = param; 1313 1314 param |= SM(SYSTEM_SLEEP_DISABLE, 1); 1315 status = ath6kl_bmi_reg_write(ar, address, param); 1316 if (status) 1317 return status; 1318 1319 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n", 1320 options, sleep); 1321 1322 /* program analog PLL register */ 1323 /* no need to control 40/44MHz clock on AR6004 */ 1324 if (ar->target_type != TARGET_TYPE_AR6004) { 1325 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER, 1326 0xF9104001); 1327 1328 if (status) 1329 return status; 1330 1331 /* Run at 80/88MHz by default */ 1332 param = SM(CPU_CLOCK_STANDARD, 1); 1333 1334 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS; 1335 status = ath6kl_bmi_reg_write(ar, address, param); 1336 if (status) 1337 return status; 1338 } 1339 1340 param = 0; 1341 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS; 1342 param = SM(LPO_CAL_ENABLE, 1); 1343 status = ath6kl_bmi_reg_write(ar, address, param); 1344 if (status) 1345 return status; 1346 1347 /* WAR to avoid SDIO CRC err */ 1348 if (ar->version.target_ver == AR6003_REV2_VERSION) { 1349 ath6kl_err("temporary war to avoid sdio crc error\n"); 1350 1351 param = 0x20; 1352 1353 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS; 1354 status = ath6kl_bmi_reg_write(ar, address, param); 1355 if (status) 1356 return status; 1357 1358 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS; 1359 status = ath6kl_bmi_reg_write(ar, address, param); 1360 if (status) 1361 return status; 1362 1363 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS; 1364 status = ath6kl_bmi_reg_write(ar, address, param); 1365 if (status) 1366 return status; 1367 1368 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS; 1369 status = ath6kl_bmi_reg_write(ar, address, param); 1370 if (status) 1371 return status; 1372 } 1373 1374 /* write EEPROM data to Target RAM */ 1375 status = ath6kl_upload_board_file(ar); 1376 if (status) 1377 return status; 1378 1379 /* transfer One time Programmable data */ 1380 status = ath6kl_upload_otp(ar); 1381 if (status) 1382 return status; 1383 1384 /* Download Target firmware */ 1385 status = ath6kl_upload_firmware(ar); 1386 if (status) 1387 return status; 1388 1389 status = ath6kl_upload_patch(ar); 1390 if (status) 1391 return status; 1392 1393 /* Restore system sleep */ 1394 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1395 status = ath6kl_bmi_reg_write(ar, address, sleep); 1396 if (status) 1397 return status; 1398 1399 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1400 param = options | 0x20; 1401 status = ath6kl_bmi_reg_write(ar, address, param); 1402 if (status) 1403 return status; 1404 1405 /* Configure GPIO AR6003 UART */ 1406 param = CONFIG_AR600x_DEBUG_UART_TX_PIN; 1407 status = ath6kl_bmi_write(ar, 1408 ath6kl_get_hi_item_addr(ar, 1409 HI_ITEM(hi_dbg_uart_txpin)), 1410 (u8 *)¶m, 4); 1411 1412 return status; 1413 } 1414 1415 static int ath6kl_init_hw_params(struct ath6kl *ar) 1416 { 1417 switch (ar->version.target_ver) { 1418 case AR6003_REV2_VERSION: 1419 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1420 ar->hw.app_load_addr = AR6003_REV2_APP_LOAD_ADDRESS; 1421 ar->hw.board_ext_data_addr = AR6003_REV2_BOARD_EXT_DATA_ADDRESS; 1422 ar->hw.reserved_ram_size = AR6003_REV2_RAM_RESERVE_SIZE; 1423 break; 1424 case AR6003_REV3_VERSION: 1425 ar->hw.dataset_patch_addr = AR6003_REV3_DATASET_PATCH_ADDRESS; 1426 ar->hw.app_load_addr = 0x1234; 1427 ar->hw.board_ext_data_addr = AR6003_REV3_BOARD_EXT_DATA_ADDRESS; 1428 ar->hw.reserved_ram_size = AR6003_REV3_RAM_RESERVE_SIZE; 1429 break; 1430 case AR6004_REV1_VERSION: 1431 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1432 ar->hw.app_load_addr = AR6003_REV3_APP_LOAD_ADDRESS; 1433 ar->hw.board_ext_data_addr = AR6004_REV1_BOARD_EXT_DATA_ADDRESS; 1434 ar->hw.reserved_ram_size = AR6004_REV1_RAM_RESERVE_SIZE; 1435 break; 1436 default: 1437 ath6kl_err("Unsupported hardware version: 0x%x\n", 1438 ar->version.target_ver); 1439 return -EINVAL; 1440 } 1441 1442 ath6kl_dbg(ATH6KL_DBG_BOOT, 1443 "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n", 1444 ar->version.target_ver, ar->target_type, 1445 ar->hw.dataset_patch_addr, ar->hw.app_load_addr); 1446 ath6kl_dbg(ATH6KL_DBG_BOOT, 1447 "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x", 1448 ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr, 1449 ar->hw.reserved_ram_size); 1450 1451 return 0; 1452 } 1453 1454 static int ath6kl_init(struct net_device *dev) 1455 { 1456 struct ath6kl *ar = ath6kl_priv(dev); 1457 int status = 0; 1458 s32 timeleft; 1459 1460 if (!ar) 1461 return -EIO; 1462 1463 /* Do we need to finish the BMI phase */ 1464 if (ath6kl_bmi_done(ar)) { 1465 status = -EIO; 1466 goto ath6kl_init_done; 1467 } 1468 1469 /* Indicate that WMI is enabled (although not ready yet) */ 1470 set_bit(WMI_ENABLED, &ar->flag); 1471 ar->wmi = ath6kl_wmi_init(ar); 1472 if (!ar->wmi) { 1473 ath6kl_err("failed to initialize wmi\n"); 1474 status = -EIO; 1475 goto ath6kl_init_done; 1476 } 1477 1478 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 1479 1480 /* 1481 * The reason we have to wait for the target here is that the 1482 * driver layer has to init BMI in order to set the host block 1483 * size. 1484 */ 1485 if (ath6kl_htc_wait_target(ar->htc_target)) { 1486 status = -EIO; 1487 goto err_node_cleanup; 1488 } 1489 1490 if (ath6kl_init_service_ep(ar)) { 1491 status = -EIO; 1492 goto err_cleanup_scatter; 1493 } 1494 1495 /* setup access class priority mappings */ 1496 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 1497 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 1498 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 1499 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 1500 1501 /* give our connected endpoints some buffers */ 1502 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 1503 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 1504 1505 /* allocate some buffers that handle larger AMSDU frames */ 1506 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 1507 1508 /* setup credit distribution */ 1509 ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info); 1510 1511 ath6kl_cookie_init(ar); 1512 1513 /* start HTC */ 1514 status = ath6kl_htc_start(ar->htc_target); 1515 1516 if (status) { 1517 ath6kl_cookie_cleanup(ar); 1518 goto err_rxbuf_cleanup; 1519 } 1520 1521 /* Wait for Wmi event to be ready */ 1522 timeleft = wait_event_interruptible_timeout(ar->event_wq, 1523 test_bit(WMI_READY, 1524 &ar->flag), 1525 WMI_TIMEOUT); 1526 1527 ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n"); 1528 1529 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { 1530 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", 1531 ATH6KL_ABI_VERSION, ar->version.abi_ver); 1532 status = -EIO; 1533 goto err_htc_stop; 1534 } 1535 1536 if (!timeleft || signal_pending(current)) { 1537 ath6kl_err("wmi is not ready or wait was interrupted\n"); 1538 status = -EIO; 1539 goto err_htc_stop; 1540 } 1541 1542 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); 1543 1544 /* communicate the wmi protocol verision to the target */ 1545 if ((ath6kl_set_host_app_area(ar)) != 0) 1546 ath6kl_err("unable to set the host app area\n"); 1547 1548 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 1549 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 1550 1551 ar->wdev->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 1552 WIPHY_FLAG_HAVE_AP_SME; 1553 1554 status = ath6kl_target_config_wlan_params(ar); 1555 if (!status) 1556 goto ath6kl_init_done; 1557 1558 err_htc_stop: 1559 ath6kl_htc_stop(ar->htc_target); 1560 err_rxbuf_cleanup: 1561 ath6kl_htc_flush_rx_buf(ar->htc_target); 1562 ath6kl_cleanup_amsdu_rxbufs(ar); 1563 err_cleanup_scatter: 1564 ath6kl_hif_cleanup_scatter(ar); 1565 err_node_cleanup: 1566 ath6kl_wmi_shutdown(ar->wmi); 1567 clear_bit(WMI_ENABLED, &ar->flag); 1568 ar->wmi = NULL; 1569 1570 ath6kl_init_done: 1571 return status; 1572 } 1573 1574 int ath6kl_core_init(struct ath6kl *ar) 1575 { 1576 int ret = 0; 1577 struct ath6kl_bmi_target_info targ_info; 1578 1579 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 1580 if (!ar->ath6kl_wq) 1581 return -ENOMEM; 1582 1583 ret = ath6kl_bmi_init(ar); 1584 if (ret) 1585 goto err_wq; 1586 1587 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 1588 if (ret) 1589 goto err_bmi_cleanup; 1590 1591 ar->version.target_ver = le32_to_cpu(targ_info.version); 1592 ar->target_type = le32_to_cpu(targ_info.type); 1593 ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version); 1594 1595 ret = ath6kl_init_hw_params(ar); 1596 if (ret) 1597 goto err_bmi_cleanup; 1598 1599 ret = ath6kl_configure_target(ar); 1600 if (ret) 1601 goto err_bmi_cleanup; 1602 1603 ar->htc_target = ath6kl_htc_create(ar); 1604 1605 if (!ar->htc_target) { 1606 ret = -ENOMEM; 1607 goto err_bmi_cleanup; 1608 } 1609 1610 ar->aggr_cntxt = aggr_init(ar->net_dev); 1611 if (!ar->aggr_cntxt) { 1612 ath6kl_err("failed to initialize aggr\n"); 1613 ret = -ENOMEM; 1614 goto err_htc_cleanup; 1615 } 1616 1617 ret = ath6kl_fetch_firmwares(ar); 1618 if (ret) 1619 goto err_htc_cleanup; 1620 1621 ret = ath6kl_init_upload(ar); 1622 if (ret) 1623 goto err_htc_cleanup; 1624 1625 ret = ath6kl_init(ar->net_dev); 1626 if (ret) 1627 goto err_htc_cleanup; 1628 1629 /* This runs the init function if registered */ 1630 ret = register_netdev(ar->net_dev); 1631 if (ret) { 1632 ath6kl_err("register_netdev failed\n"); 1633 ath6kl_destroy(ar->net_dev, 0); 1634 return ret; 1635 } 1636 1637 set_bit(NETDEV_REGISTERED, &ar->flag); 1638 1639 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 1640 __func__, ar->net_dev->name, ar->net_dev, ar); 1641 1642 return ret; 1643 1644 err_htc_cleanup: 1645 ath6kl_htc_cleanup(ar->htc_target); 1646 err_bmi_cleanup: 1647 ath6kl_bmi_cleanup(ar); 1648 err_wq: 1649 destroy_workqueue(ar->ath6kl_wq); 1650 return ret; 1651 } 1652 1653 void ath6kl_stop_txrx(struct ath6kl *ar) 1654 { 1655 struct net_device *ndev = ar->net_dev; 1656 1657 if (!ndev) 1658 return; 1659 1660 set_bit(DESTROY_IN_PROGRESS, &ar->flag); 1661 1662 if (down_interruptible(&ar->sem)) { 1663 ath6kl_err("down_interruptible failed\n"); 1664 return; 1665 } 1666 1667 if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR) 1668 ath6kl_stop_endpoint(ndev, false, true); 1669 1670 clear_bit(WLAN_ENABLED, &ar->flag); 1671 } 1672 1673 /* 1674 * We need to differentiate between the surprise and planned removal of the 1675 * device because of the following consideration: 1676 * 1677 * - In case of surprise removal, the hcd already frees up the pending 1678 * for the device and hence there is no need to unregister the function 1679 * driver inorder to get these requests. For planned removal, the function 1680 * driver has to explicitly unregister itself to have the hcd return all the 1681 * pending requests before the data structures for the devices are freed up. 1682 * Note that as per the current implementation, the function driver will 1683 * end up releasing all the devices since there is no API to selectively 1684 * release a particular device. 1685 * 1686 * - Certain commands issued to the target can be skipped for surprise 1687 * removal since they will anyway not go through. 1688 */ 1689 void ath6kl_destroy(struct net_device *dev, unsigned int unregister) 1690 { 1691 struct ath6kl *ar; 1692 1693 if (!dev || !ath6kl_priv(dev)) { 1694 ath6kl_err("failed to get device structure\n"); 1695 return; 1696 } 1697 1698 ar = ath6kl_priv(dev); 1699 1700 destroy_workqueue(ar->ath6kl_wq); 1701 1702 if (ar->htc_target) 1703 ath6kl_htc_cleanup(ar->htc_target); 1704 1705 aggr_module_destroy(ar->aggr_cntxt); 1706 1707 ath6kl_cookie_cleanup(ar); 1708 1709 ath6kl_cleanup_amsdu_rxbufs(ar); 1710 1711 ath6kl_bmi_cleanup(ar); 1712 1713 ath6kl_debug_cleanup(ar); 1714 1715 if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) { 1716 unregister_netdev(dev); 1717 clear_bit(NETDEV_REGISTERED, &ar->flag); 1718 } 1719 1720 free_netdev(dev); 1721 1722 kfree(ar->fw_board); 1723 kfree(ar->fw_otp); 1724 kfree(ar->fw); 1725 kfree(ar->fw_patch); 1726 1727 ath6kl_cfg80211_deinit(ar); 1728 } 1729