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 if (ar->target_type == TARGET_TYPE_AR6003 || 531 ar->target_type == TARGET_TYPE_AR6004) { 532 if (ar->version.target_ver == AR6003_REV2_VERSION) { 533 param = AR6003_REV2_BOARD_EXT_DATA_ADDRESS; 534 ram_reserved_size = AR6003_REV2_RAM_RESERVE_SIZE; 535 } else if (ar->version.target_ver == AR6004_REV1_VERSION) { 536 param = AR6004_REV1_BOARD_EXT_DATA_ADDRESS; 537 ram_reserved_size = AR6004_REV1_RAM_RESERVE_SIZE; 538 } else { 539 param = AR6003_REV3_BOARD_EXT_DATA_ADDRESS; 540 ram_reserved_size = AR6003_REV3_RAM_RESERVE_SIZE; 541 } 542 543 if (ath6kl_bmi_write(ar, 544 ath6kl_get_hi_item_addr(ar, 545 HI_ITEM(hi_board_ext_data)), 546 (u8 *)¶m, 4) != 0) { 547 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n"); 548 return -EIO; 549 } 550 if (ath6kl_bmi_write(ar, 551 ath6kl_get_hi_item_addr(ar, 552 HI_ITEM(hi_end_ram_reserve_sz)), 553 (u8 *)&ram_reserved_size, 4) != 0) { 554 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n"); 555 return -EIO; 556 } 557 } 558 559 /* set the block size for the target */ 560 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0)) 561 /* use default number of control buffers */ 562 return -EIO; 563 564 return 0; 565 } 566 567 struct ath6kl *ath6kl_core_alloc(struct device *sdev) 568 { 569 struct net_device *dev; 570 struct ath6kl *ar; 571 struct wireless_dev *wdev; 572 573 wdev = ath6kl_cfg80211_init(sdev); 574 if (!wdev) { 575 ath6kl_err("ath6kl_cfg80211_init failed\n"); 576 return NULL; 577 } 578 579 ar = wdev_priv(wdev); 580 ar->dev = sdev; 581 ar->wdev = wdev; 582 wdev->iftype = NL80211_IFTYPE_STATION; 583 584 if (ath6kl_debug_init(ar)) { 585 ath6kl_err("Failed to initialize debugfs\n"); 586 ath6kl_cfg80211_deinit(ar); 587 return NULL; 588 } 589 590 dev = alloc_netdev(0, "wlan%d", ether_setup); 591 if (!dev) { 592 ath6kl_err("no memory for network device instance\n"); 593 ath6kl_cfg80211_deinit(ar); 594 return NULL; 595 } 596 597 dev->ieee80211_ptr = wdev; 598 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy)); 599 wdev->netdev = dev; 600 ar->sme_state = SME_DISCONNECTED; 601 ar->auto_auth_stage = AUTH_IDLE; 602 603 init_netdev(dev); 604 605 ar->net_dev = dev; 606 set_bit(WLAN_ENABLED, &ar->flag); 607 608 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 609 610 spin_lock_init(&ar->lock); 611 612 ath6kl_init_control_info(ar); 613 init_waitqueue_head(&ar->event_wq); 614 sema_init(&ar->sem, 1); 615 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 616 617 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 618 619 setup_timer(&ar->disconnect_timer, disconnect_timer_handler, 620 (unsigned long) dev); 621 622 return ar; 623 } 624 625 int ath6kl_unavail_ev(struct ath6kl *ar) 626 { 627 ath6kl_destroy(ar->net_dev, 1); 628 629 return 0; 630 } 631 632 /* firmware upload */ 633 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename, 634 u8 **fw, size_t *fw_len) 635 { 636 const struct firmware *fw_entry; 637 int ret; 638 639 ret = request_firmware(&fw_entry, filename, ar->dev); 640 if (ret) 641 return ret; 642 643 *fw_len = fw_entry->size; 644 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL); 645 646 if (*fw == NULL) 647 ret = -ENOMEM; 648 649 release_firmware(fw_entry); 650 651 return ret; 652 } 653 654 #ifdef CONFIG_OF 655 static const char *get_target_ver_dir(const struct ath6kl *ar) 656 { 657 switch (ar->version.target_ver) { 658 case AR6003_REV1_VERSION: 659 return "ath6k/AR6003/hw1.0"; 660 case AR6003_REV2_VERSION: 661 return "ath6k/AR6003/hw2.0"; 662 case AR6003_REV3_VERSION: 663 return "ath6k/AR6003/hw2.1.1"; 664 } 665 ath6kl_warn("%s: unsupported target version 0x%x.\n", __func__, 666 ar->version.target_ver); 667 return NULL; 668 } 669 670 /* 671 * Check the device tree for a board-id and use it to construct 672 * the pathname to the firmware file. Used (for now) to find a 673 * fallback to the "bdata.bin" file--typically a symlink to the 674 * appropriate board-specific file. 675 */ 676 static bool check_device_tree(struct ath6kl *ar) 677 { 678 static const char *board_id_prop = "atheros,board-id"; 679 struct device_node *node; 680 char board_filename[64]; 681 const char *board_id; 682 int ret; 683 684 for_each_compatible_node(node, NULL, "atheros,ath6kl") { 685 board_id = of_get_property(node, board_id_prop, NULL); 686 if (board_id == NULL) { 687 ath6kl_warn("No \"%s\" property on %s node.\n", 688 board_id_prop, node->name); 689 continue; 690 } 691 snprintf(board_filename, sizeof(board_filename), 692 "%s/bdata.%s.bin", get_target_ver_dir(ar), board_id); 693 694 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board, 695 &ar->fw_board_len); 696 if (ret) { 697 ath6kl_err("Failed to get DT board file %s: %d\n", 698 board_filename, ret); 699 continue; 700 } 701 return true; 702 } 703 return false; 704 } 705 #else 706 static bool check_device_tree(struct ath6kl *ar) 707 { 708 return false; 709 } 710 #endif /* CONFIG_OF */ 711 712 static int ath6kl_fetch_board_file(struct ath6kl *ar) 713 { 714 const char *filename; 715 int ret; 716 717 if (ar->fw_board != NULL) 718 return 0; 719 720 switch (ar->version.target_ver) { 721 case AR6003_REV2_VERSION: 722 filename = AR6003_REV2_BOARD_DATA_FILE; 723 break; 724 case AR6004_REV1_VERSION: 725 filename = AR6004_REV1_BOARD_DATA_FILE; 726 break; 727 default: 728 filename = AR6003_REV3_BOARD_DATA_FILE; 729 break; 730 } 731 732 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 733 &ar->fw_board_len); 734 if (ret == 0) { 735 /* managed to get proper board file */ 736 return 0; 737 } 738 739 if (check_device_tree(ar)) { 740 /* got board file from device tree */ 741 return 0; 742 } 743 744 /* there was no proper board file, try to use default instead */ 745 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n", 746 filename, ret); 747 748 switch (ar->version.target_ver) { 749 case AR6003_REV2_VERSION: 750 filename = AR6003_REV2_DEFAULT_BOARD_DATA_FILE; 751 break; 752 case AR6004_REV1_VERSION: 753 filename = AR6004_REV1_DEFAULT_BOARD_DATA_FILE; 754 break; 755 default: 756 filename = AR6003_REV3_DEFAULT_BOARD_DATA_FILE; 757 break; 758 } 759 760 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 761 &ar->fw_board_len); 762 if (ret) { 763 ath6kl_err("Failed to get default board file %s: %d\n", 764 filename, ret); 765 return ret; 766 } 767 768 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n"); 769 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n"); 770 771 return 0; 772 } 773 774 static int ath6kl_fetch_otp_file(struct ath6kl *ar) 775 { 776 const char *filename; 777 int ret; 778 779 if (ar->fw_otp != NULL) 780 return 0; 781 782 switch (ar->version.target_ver) { 783 case AR6003_REV2_VERSION: 784 filename = AR6003_REV2_OTP_FILE; 785 break; 786 case AR6004_REV1_VERSION: 787 ath6kl_dbg(ATH6KL_DBG_TRC, "AR6004 doesn't need OTP file\n"); 788 return 0; 789 break; 790 default: 791 filename = AR6003_REV3_OTP_FILE; 792 break; 793 } 794 795 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp, 796 &ar->fw_otp_len); 797 if (ret) { 798 ath6kl_err("Failed to get OTP file %s: %d\n", 799 filename, ret); 800 return ret; 801 } 802 803 return 0; 804 } 805 806 static int ath6kl_fetch_fw_file(struct ath6kl *ar) 807 { 808 const char *filename; 809 int ret; 810 811 if (ar->fw != NULL) 812 return 0; 813 814 if (testmode) { 815 switch (ar->version.target_ver) { 816 case AR6003_REV2_VERSION: 817 filename = AR6003_REV2_TCMD_FIRMWARE_FILE; 818 break; 819 case AR6003_REV3_VERSION: 820 filename = AR6003_REV3_TCMD_FIRMWARE_FILE; 821 break; 822 case AR6004_REV1_VERSION: 823 ath6kl_warn("testmode not supported with ar6004\n"); 824 return -EOPNOTSUPP; 825 default: 826 ath6kl_warn("unknown target version: 0x%x\n", 827 ar->version.target_ver); 828 return -EINVAL; 829 } 830 831 set_bit(TESTMODE, &ar->flag); 832 833 goto get_fw; 834 } 835 836 switch (ar->version.target_ver) { 837 case AR6003_REV2_VERSION: 838 filename = AR6003_REV2_FIRMWARE_FILE; 839 break; 840 case AR6004_REV1_VERSION: 841 filename = AR6004_REV1_FIRMWARE_FILE; 842 break; 843 default: 844 filename = AR6003_REV3_FIRMWARE_FILE; 845 break; 846 } 847 848 get_fw: 849 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len); 850 if (ret) { 851 ath6kl_err("Failed to get firmware file %s: %d\n", 852 filename, ret); 853 return ret; 854 } 855 856 return 0; 857 } 858 859 static int ath6kl_fetch_patch_file(struct ath6kl *ar) 860 { 861 const char *filename; 862 int ret; 863 864 switch (ar->version.target_ver) { 865 case AR6003_REV2_VERSION: 866 filename = AR6003_REV2_PATCH_FILE; 867 break; 868 case AR6004_REV1_VERSION: 869 /* FIXME: implement for AR6004 */ 870 return 0; 871 break; 872 default: 873 filename = AR6003_REV3_PATCH_FILE; 874 break; 875 } 876 877 if (ar->fw_patch == NULL) { 878 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch, 879 &ar->fw_patch_len); 880 if (ret) { 881 ath6kl_err("Failed to get patch file %s: %d\n", 882 filename, ret); 883 return ret; 884 } 885 } 886 887 return 0; 888 } 889 890 static int ath6kl_fetch_fw_api1(struct ath6kl *ar) 891 { 892 int ret; 893 894 ret = ath6kl_fetch_otp_file(ar); 895 if (ret) 896 return ret; 897 898 ret = ath6kl_fetch_fw_file(ar); 899 if (ret) 900 return ret; 901 902 ret = ath6kl_fetch_patch_file(ar); 903 if (ret) 904 return ret; 905 906 return 0; 907 } 908 909 static int ath6kl_fetch_fw_api2(struct ath6kl *ar) 910 { 911 size_t magic_len, len, ie_len; 912 const struct firmware *fw; 913 struct ath6kl_fw_ie *hdr; 914 const char *filename; 915 const u8 *data; 916 int ret, ie_id; 917 918 switch (ar->version.target_ver) { 919 case AR6003_REV2_VERSION: 920 filename = AR6003_REV2_FIRMWARE_2_FILE; 921 break; 922 case AR6003_REV3_VERSION: 923 filename = AR6003_REV3_FIRMWARE_2_FILE; 924 break; 925 case AR6004_REV1_VERSION: 926 filename = AR6004_REV1_FIRMWARE_2_FILE; 927 break; 928 default: 929 return -EOPNOTSUPP; 930 } 931 932 ret = request_firmware(&fw, filename, ar->dev); 933 if (ret) 934 return ret; 935 936 data = fw->data; 937 len = fw->size; 938 939 /* magic also includes the null byte, check that as well */ 940 magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1; 941 942 if (len < magic_len) { 943 ret = -EINVAL; 944 goto out; 945 } 946 947 if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) { 948 ret = -EINVAL; 949 goto out; 950 } 951 952 len -= magic_len; 953 data += magic_len; 954 955 /* loop elements */ 956 while (len > sizeof(struct ath6kl_fw_ie)) { 957 /* hdr is unaligned! */ 958 hdr = (struct ath6kl_fw_ie *) data; 959 960 ie_id = le32_to_cpup(&hdr->id); 961 ie_len = le32_to_cpup(&hdr->len); 962 963 len -= sizeof(*hdr); 964 data += sizeof(*hdr); 965 966 if (len < ie_len) { 967 ret = -EINVAL; 968 goto out; 969 } 970 971 switch (ie_id) { 972 case ATH6KL_FW_IE_OTP_IMAGE: 973 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL); 974 975 if (ar->fw_otp == NULL) { 976 ret = -ENOMEM; 977 goto out; 978 } 979 980 ar->fw_otp_len = ie_len; 981 break; 982 case ATH6KL_FW_IE_FW_IMAGE: 983 ar->fw = kmemdup(data, ie_len, GFP_KERNEL); 984 985 if (ar->fw == NULL) { 986 ret = -ENOMEM; 987 goto out; 988 } 989 990 ar->fw_len = ie_len; 991 break; 992 case ATH6KL_FW_IE_PATCH_IMAGE: 993 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL); 994 995 if (ar->fw_patch == NULL) { 996 ret = -ENOMEM; 997 goto out; 998 } 999 1000 ar->fw_patch_len = ie_len; 1001 break; 1002 default: 1003 ath6kl_dbg(ATH6KL_DBG_TRC, "Unknown fw ie: %u\n", 1004 le32_to_cpup(&hdr->id)); 1005 break; 1006 } 1007 1008 len -= ie_len; 1009 data += ie_len; 1010 }; 1011 1012 ret = 0; 1013 out: 1014 release_firmware(fw); 1015 1016 return ret; 1017 } 1018 1019 static int ath6kl_fetch_firmwares(struct ath6kl *ar) 1020 { 1021 int ret; 1022 1023 ret = ath6kl_fetch_board_file(ar); 1024 if (ret) 1025 return ret; 1026 1027 ret = ath6kl_fetch_fw_api2(ar); 1028 if (ret == 0) 1029 /* fw api 2 found, use it */ 1030 return 0; 1031 1032 ret = ath6kl_fetch_fw_api1(ar); 1033 if (ret) 1034 return ret; 1035 1036 return 0; 1037 } 1038 1039 static int ath6kl_upload_board_file(struct ath6kl *ar) 1040 { 1041 u32 board_address, board_ext_address, param; 1042 u32 board_data_size, board_ext_data_size; 1043 int ret; 1044 1045 if (WARN_ON(ar->fw_board == NULL)) 1046 return -ENOENT; 1047 1048 /* 1049 * Determine where in Target RAM to write Board Data. 1050 * For AR6004, host determine Target RAM address for 1051 * writing board data. 1052 */ 1053 if (ar->target_type == TARGET_TYPE_AR6004) { 1054 board_address = AR6004_REV1_BOARD_DATA_ADDRESS; 1055 ath6kl_bmi_write(ar, 1056 ath6kl_get_hi_item_addr(ar, 1057 HI_ITEM(hi_board_data)), 1058 (u8 *) &board_address, 4); 1059 } else { 1060 ath6kl_bmi_read(ar, 1061 ath6kl_get_hi_item_addr(ar, 1062 HI_ITEM(hi_board_data)), 1063 (u8 *) &board_address, 4); 1064 } 1065 1066 ath6kl_dbg(ATH6KL_DBG_TRC, "board data download addr: 0x%x\n", 1067 board_address); 1068 1069 /* determine where in target ram to write extended board data */ 1070 ath6kl_bmi_read(ar, 1071 ath6kl_get_hi_item_addr(ar, 1072 HI_ITEM(hi_board_ext_data)), 1073 (u8 *) &board_ext_address, 4); 1074 1075 ath6kl_dbg(ATH6KL_DBG_TRC, "board file download addr: 0x%x\n", 1076 board_ext_address); 1077 1078 if (board_ext_address == 0) { 1079 ath6kl_err("Failed to get board file target address.\n"); 1080 return -EINVAL; 1081 } 1082 1083 switch (ar->target_type) { 1084 case TARGET_TYPE_AR6003: 1085 board_data_size = AR6003_BOARD_DATA_SZ; 1086 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ; 1087 break; 1088 case TARGET_TYPE_AR6004: 1089 board_data_size = AR6004_BOARD_DATA_SZ; 1090 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ; 1091 break; 1092 default: 1093 WARN_ON(1); 1094 return -EINVAL; 1095 break; 1096 } 1097 1098 if (ar->fw_board_len == (board_data_size + 1099 board_ext_data_size)) { 1100 1101 /* write extended board data */ 1102 ret = ath6kl_bmi_write(ar, board_ext_address, 1103 ar->fw_board + board_data_size, 1104 board_ext_data_size); 1105 if (ret) { 1106 ath6kl_err("Failed to write extended board data: %d\n", 1107 ret); 1108 return ret; 1109 } 1110 1111 /* record that extended board data is initialized */ 1112 param = (board_ext_data_size << 16) | 1; 1113 1114 ath6kl_bmi_write(ar, 1115 ath6kl_get_hi_item_addr(ar, 1116 HI_ITEM(hi_board_ext_data_config)), 1117 (unsigned char *) ¶m, 4); 1118 } 1119 1120 if (ar->fw_board_len < board_data_size) { 1121 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len); 1122 ret = -EINVAL; 1123 return ret; 1124 } 1125 1126 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board, 1127 board_data_size); 1128 1129 if (ret) { 1130 ath6kl_err("Board file bmi write failed: %d\n", ret); 1131 return ret; 1132 } 1133 1134 /* record the fact that Board Data IS initialized */ 1135 param = 1; 1136 ath6kl_bmi_write(ar, 1137 ath6kl_get_hi_item_addr(ar, 1138 HI_ITEM(hi_board_data_initialized)), 1139 (u8 *)¶m, 4); 1140 1141 return ret; 1142 } 1143 1144 static int ath6kl_upload_otp(struct ath6kl *ar) 1145 { 1146 u32 address, param; 1147 int ret; 1148 1149 if (WARN_ON(ar->fw_otp == NULL)) 1150 return -ENOENT; 1151 1152 address = ar->hw.app_load_addr; 1153 1154 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp, 1155 ar->fw_otp_len); 1156 if (ret) { 1157 ath6kl_err("Failed to upload OTP file: %d\n", ret); 1158 return ret; 1159 } 1160 1161 /* execute the OTP code */ 1162 param = 0; 1163 address = ar->hw.app_start_override_addr; 1164 ath6kl_bmi_execute(ar, address, ¶m); 1165 1166 return ret; 1167 } 1168 1169 static int ath6kl_upload_firmware(struct ath6kl *ar) 1170 { 1171 u32 address; 1172 int ret; 1173 1174 if (WARN_ON(ar->fw == NULL)) 1175 return -ENOENT; 1176 1177 address = ar->hw.app_load_addr; 1178 1179 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len); 1180 1181 if (ret) { 1182 ath6kl_err("Failed to write firmware: %d\n", ret); 1183 return ret; 1184 } 1185 1186 /* 1187 * Set starting address for firmware 1188 * Don't need to setup app_start override addr on AR6004 1189 */ 1190 if (ar->target_type != TARGET_TYPE_AR6004) { 1191 address = ar->hw.app_start_override_addr; 1192 ath6kl_bmi_set_app_start(ar, address); 1193 } 1194 return ret; 1195 } 1196 1197 static int ath6kl_upload_patch(struct ath6kl *ar) 1198 { 1199 u32 address, param; 1200 int ret; 1201 1202 if (WARN_ON(ar->fw_patch == NULL)) 1203 return -ENOENT; 1204 1205 address = ar->hw.dataset_patch_addr; 1206 1207 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len); 1208 if (ret) { 1209 ath6kl_err("Failed to write patch file: %d\n", ret); 1210 return ret; 1211 } 1212 1213 param = address; 1214 ath6kl_bmi_write(ar, 1215 ath6kl_get_hi_item_addr(ar, 1216 HI_ITEM(hi_dset_list_head)), 1217 (unsigned char *) ¶m, 4); 1218 1219 return 0; 1220 } 1221 1222 static int ath6kl_init_upload(struct ath6kl *ar) 1223 { 1224 u32 param, options, sleep, address; 1225 int status = 0; 1226 1227 if (ar->target_type != TARGET_TYPE_AR6003 && 1228 ar->target_type != TARGET_TYPE_AR6004) 1229 return -EINVAL; 1230 1231 /* temporarily disable system sleep */ 1232 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1233 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1234 if (status) 1235 return status; 1236 1237 options = param; 1238 1239 param |= ATH6KL_OPTION_SLEEP_DISABLE; 1240 status = ath6kl_bmi_reg_write(ar, address, param); 1241 if (status) 1242 return status; 1243 1244 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1245 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1246 if (status) 1247 return status; 1248 1249 sleep = param; 1250 1251 param |= SM(SYSTEM_SLEEP_DISABLE, 1); 1252 status = ath6kl_bmi_reg_write(ar, address, param); 1253 if (status) 1254 return status; 1255 1256 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n", 1257 options, sleep); 1258 1259 /* program analog PLL register */ 1260 /* no need to control 40/44MHz clock on AR6004 */ 1261 if (ar->target_type != TARGET_TYPE_AR6004) { 1262 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER, 1263 0xF9104001); 1264 1265 if (status) 1266 return status; 1267 1268 /* Run at 80/88MHz by default */ 1269 param = SM(CPU_CLOCK_STANDARD, 1); 1270 1271 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS; 1272 status = ath6kl_bmi_reg_write(ar, address, param); 1273 if (status) 1274 return status; 1275 } 1276 1277 param = 0; 1278 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS; 1279 param = SM(LPO_CAL_ENABLE, 1); 1280 status = ath6kl_bmi_reg_write(ar, address, param); 1281 if (status) 1282 return status; 1283 1284 /* WAR to avoid SDIO CRC err */ 1285 if (ar->version.target_ver == AR6003_REV2_VERSION) { 1286 ath6kl_err("temporary war to avoid sdio crc error\n"); 1287 1288 param = 0x20; 1289 1290 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS; 1291 status = ath6kl_bmi_reg_write(ar, address, param); 1292 if (status) 1293 return status; 1294 1295 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS; 1296 status = ath6kl_bmi_reg_write(ar, address, param); 1297 if (status) 1298 return status; 1299 1300 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS; 1301 status = ath6kl_bmi_reg_write(ar, address, param); 1302 if (status) 1303 return status; 1304 1305 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS; 1306 status = ath6kl_bmi_reg_write(ar, address, param); 1307 if (status) 1308 return status; 1309 } 1310 1311 /* write EEPROM data to Target RAM */ 1312 status = ath6kl_upload_board_file(ar); 1313 if (status) 1314 return status; 1315 1316 /* transfer One time Programmable data */ 1317 status = ath6kl_upload_otp(ar); 1318 if (status) 1319 return status; 1320 1321 /* Download Target firmware */ 1322 status = ath6kl_upload_firmware(ar); 1323 if (status) 1324 return status; 1325 1326 status = ath6kl_upload_patch(ar); 1327 if (status) 1328 return status; 1329 1330 /* Restore system sleep */ 1331 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1332 status = ath6kl_bmi_reg_write(ar, address, sleep); 1333 if (status) 1334 return status; 1335 1336 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1337 param = options | 0x20; 1338 status = ath6kl_bmi_reg_write(ar, address, param); 1339 if (status) 1340 return status; 1341 1342 /* Configure GPIO AR6003 UART */ 1343 param = CONFIG_AR600x_DEBUG_UART_TX_PIN; 1344 status = ath6kl_bmi_write(ar, 1345 ath6kl_get_hi_item_addr(ar, 1346 HI_ITEM(hi_dbg_uart_txpin)), 1347 (u8 *)¶m, 4); 1348 1349 return status; 1350 } 1351 1352 static int ath6kl_init_hw_params(struct ath6kl *ar) 1353 { 1354 switch (ar->version.target_ver) { 1355 case AR6003_REV2_VERSION: 1356 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1357 ar->hw.app_load_addr = AR6003_REV2_APP_LOAD_ADDRESS; 1358 ar->hw.app_start_override_addr = AR6003_REV2_APP_START_OVERRIDE; 1359 break; 1360 case AR6003_REV3_VERSION: 1361 ar->hw.dataset_patch_addr = AR6003_REV3_DATASET_PATCH_ADDRESS; 1362 ar->hw.app_load_addr = 0x1234; 1363 ar->hw.app_start_override_addr = AR6003_REV3_APP_START_OVERRIDE; 1364 break; 1365 case AR6004_REV1_VERSION: 1366 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS; 1367 ar->hw.app_load_addr = AR6003_REV3_APP_LOAD_ADDRESS; 1368 ar->hw.app_start_override_addr = AR6003_REV3_APP_START_OVERRIDE; 1369 break; 1370 default: 1371 ath6kl_err("Unsupported hardware version: 0x%x\n", 1372 ar->version.target_ver); 1373 return -EINVAL; 1374 } 1375 1376 return 0; 1377 } 1378 1379 static int ath6kl_init(struct net_device *dev) 1380 { 1381 struct ath6kl *ar = ath6kl_priv(dev); 1382 int status = 0; 1383 s32 timeleft; 1384 1385 if (!ar) 1386 return -EIO; 1387 1388 /* Do we need to finish the BMI phase */ 1389 if (ath6kl_bmi_done(ar)) { 1390 status = -EIO; 1391 goto ath6kl_init_done; 1392 } 1393 1394 /* Indicate that WMI is enabled (although not ready yet) */ 1395 set_bit(WMI_ENABLED, &ar->flag); 1396 ar->wmi = ath6kl_wmi_init(ar); 1397 if (!ar->wmi) { 1398 ath6kl_err("failed to initialize wmi\n"); 1399 status = -EIO; 1400 goto ath6kl_init_done; 1401 } 1402 1403 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 1404 1405 wlan_node_table_init(&ar->scan_table); 1406 1407 /* 1408 * The reason we have to wait for the target here is that the 1409 * driver layer has to init BMI in order to set the host block 1410 * size. 1411 */ 1412 if (ath6kl_htc_wait_target(ar->htc_target)) { 1413 status = -EIO; 1414 goto err_node_cleanup; 1415 } 1416 1417 if (ath6kl_init_service_ep(ar)) { 1418 status = -EIO; 1419 goto err_cleanup_scatter; 1420 } 1421 1422 /* setup access class priority mappings */ 1423 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 1424 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 1425 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 1426 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 1427 1428 /* give our connected endpoints some buffers */ 1429 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 1430 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 1431 1432 /* allocate some buffers that handle larger AMSDU frames */ 1433 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 1434 1435 /* setup credit distribution */ 1436 ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info); 1437 1438 ath6kl_cookie_init(ar); 1439 1440 /* start HTC */ 1441 status = ath6kl_htc_start(ar->htc_target); 1442 1443 if (status) { 1444 ath6kl_cookie_cleanup(ar); 1445 goto err_rxbuf_cleanup; 1446 } 1447 1448 /* Wait for Wmi event to be ready */ 1449 timeleft = wait_event_interruptible_timeout(ar->event_wq, 1450 test_bit(WMI_READY, 1451 &ar->flag), 1452 WMI_TIMEOUT); 1453 1454 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { 1455 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", 1456 ATH6KL_ABI_VERSION, ar->version.abi_ver); 1457 status = -EIO; 1458 goto err_htc_stop; 1459 } 1460 1461 if (!timeleft || signal_pending(current)) { 1462 ath6kl_err("wmi is not ready or wait was interrupted\n"); 1463 status = -EIO; 1464 goto err_htc_stop; 1465 } 1466 1467 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); 1468 1469 /* communicate the wmi protocol verision to the target */ 1470 if ((ath6kl_set_host_app_area(ar)) != 0) 1471 ath6kl_err("unable to set the host app area\n"); 1472 1473 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 1474 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 1475 1476 status = ath6kl_target_config_wlan_params(ar); 1477 if (!status) 1478 goto ath6kl_init_done; 1479 1480 err_htc_stop: 1481 ath6kl_htc_stop(ar->htc_target); 1482 err_rxbuf_cleanup: 1483 ath6kl_htc_flush_rx_buf(ar->htc_target); 1484 ath6kl_cleanup_amsdu_rxbufs(ar); 1485 err_cleanup_scatter: 1486 ath6kl_hif_cleanup_scatter(ar); 1487 err_node_cleanup: 1488 wlan_node_table_cleanup(&ar->scan_table); 1489 ath6kl_wmi_shutdown(ar->wmi); 1490 clear_bit(WMI_ENABLED, &ar->flag); 1491 ar->wmi = NULL; 1492 1493 ath6kl_init_done: 1494 return status; 1495 } 1496 1497 int ath6kl_core_init(struct ath6kl *ar) 1498 { 1499 int ret = 0; 1500 struct ath6kl_bmi_target_info targ_info; 1501 1502 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 1503 if (!ar->ath6kl_wq) 1504 return -ENOMEM; 1505 1506 ret = ath6kl_bmi_init(ar); 1507 if (ret) 1508 goto err_wq; 1509 1510 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 1511 if (ret) 1512 goto err_bmi_cleanup; 1513 1514 ar->version.target_ver = le32_to_cpu(targ_info.version); 1515 ar->target_type = le32_to_cpu(targ_info.type); 1516 ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version); 1517 1518 ret = ath6kl_init_hw_params(ar); 1519 if (ret) 1520 goto err_bmi_cleanup; 1521 1522 ret = ath6kl_configure_target(ar); 1523 if (ret) 1524 goto err_bmi_cleanup; 1525 1526 ar->htc_target = ath6kl_htc_create(ar); 1527 1528 if (!ar->htc_target) { 1529 ret = -ENOMEM; 1530 goto err_bmi_cleanup; 1531 } 1532 1533 ar->aggr_cntxt = aggr_init(ar->net_dev); 1534 if (!ar->aggr_cntxt) { 1535 ath6kl_err("failed to initialize aggr\n"); 1536 ret = -ENOMEM; 1537 goto err_htc_cleanup; 1538 } 1539 1540 ret = ath6kl_fetch_firmwares(ar); 1541 if (ret) 1542 goto err_htc_cleanup; 1543 1544 ret = ath6kl_init_upload(ar); 1545 if (ret) 1546 goto err_htc_cleanup; 1547 1548 ret = ath6kl_init(ar->net_dev); 1549 if (ret) 1550 goto err_htc_cleanup; 1551 1552 /* This runs the init function if registered */ 1553 ret = register_netdev(ar->net_dev); 1554 if (ret) { 1555 ath6kl_err("register_netdev failed\n"); 1556 ath6kl_destroy(ar->net_dev, 0); 1557 return ret; 1558 } 1559 1560 set_bit(NETDEV_REGISTERED, &ar->flag); 1561 1562 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 1563 __func__, ar->net_dev->name, ar->net_dev, ar); 1564 1565 return ret; 1566 1567 err_htc_cleanup: 1568 ath6kl_htc_cleanup(ar->htc_target); 1569 err_bmi_cleanup: 1570 ath6kl_bmi_cleanup(ar); 1571 err_wq: 1572 destroy_workqueue(ar->ath6kl_wq); 1573 return ret; 1574 } 1575 1576 void ath6kl_stop_txrx(struct ath6kl *ar) 1577 { 1578 struct net_device *ndev = ar->net_dev; 1579 1580 if (!ndev) 1581 return; 1582 1583 set_bit(DESTROY_IN_PROGRESS, &ar->flag); 1584 1585 if (down_interruptible(&ar->sem)) { 1586 ath6kl_err("down_interruptible failed\n"); 1587 return; 1588 } 1589 1590 if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR) 1591 ath6kl_stop_endpoint(ndev, false, true); 1592 1593 clear_bit(WLAN_ENABLED, &ar->flag); 1594 } 1595 1596 /* 1597 * We need to differentiate between the surprise and planned removal of the 1598 * device because of the following consideration: 1599 * 1600 * - In case of surprise removal, the hcd already frees up the pending 1601 * for the device and hence there is no need to unregister the function 1602 * driver inorder to get these requests. For planned removal, the function 1603 * driver has to explicitly unregister itself to have the hcd return all the 1604 * pending requests before the data structures for the devices are freed up. 1605 * Note that as per the current implementation, the function driver will 1606 * end up releasing all the devices since there is no API to selectively 1607 * release a particular device. 1608 * 1609 * - Certain commands issued to the target can be skipped for surprise 1610 * removal since they will anyway not go through. 1611 */ 1612 void ath6kl_destroy(struct net_device *dev, unsigned int unregister) 1613 { 1614 struct ath6kl *ar; 1615 1616 if (!dev || !ath6kl_priv(dev)) { 1617 ath6kl_err("failed to get device structure\n"); 1618 return; 1619 } 1620 1621 ar = ath6kl_priv(dev); 1622 1623 destroy_workqueue(ar->ath6kl_wq); 1624 1625 if (ar->htc_target) 1626 ath6kl_htc_cleanup(ar->htc_target); 1627 1628 aggr_module_destroy(ar->aggr_cntxt); 1629 1630 ath6kl_cookie_cleanup(ar); 1631 1632 ath6kl_cleanup_amsdu_rxbufs(ar); 1633 1634 ath6kl_bmi_cleanup(ar); 1635 1636 ath6kl_debug_cleanup(ar); 1637 1638 if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) { 1639 unregister_netdev(dev); 1640 clear_bit(NETDEV_REGISTERED, &ar->flag); 1641 } 1642 1643 free_netdev(dev); 1644 1645 wlan_node_table_cleanup(&ar->scan_table); 1646 1647 kfree(ar->fw_board); 1648 kfree(ar->fw_otp); 1649 kfree(ar->fw); 1650 kfree(ar->fw_patch); 1651 1652 ath6kl_cfg80211_deinit(ar); 1653 } 1654