1 2 /* 3 * Copyright (c) 2011 Atheros Communications Inc. 4 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 20 21 #include <linux/moduleparam.h> 22 #include <linux/errno.h> 23 #include <linux/export.h> 24 #include <linux/of.h> 25 #include <linux/mmc/sdio_func.h> 26 #include <linux/vmalloc.h> 27 28 #include "core.h" 29 #include "cfg80211.h" 30 #include "target.h" 31 #include "debug.h" 32 #include "hif-ops.h" 33 #include "htc-ops.h" 34 35 static const struct ath6kl_hw hw_list[] = { 36 { 37 .id = AR6003_HW_2_0_VERSION, 38 .name = "ar6003 hw 2.0", 39 .dataset_patch_addr = 0x57e884, 40 .app_load_addr = 0x543180, 41 .board_ext_data_addr = 0x57e500, 42 .reserved_ram_size = 6912, 43 .refclk_hz = 26000000, 44 .uarttx_pin = 8, 45 .flags = ATH6KL_HW_SDIO_CRC_ERROR_WAR, 46 47 /* hw2.0 needs override address hardcoded */ 48 .app_start_override_addr = 0x944C00, 49 50 .fw = { 51 .dir = AR6003_HW_2_0_FW_DIR, 52 .otp = AR6003_HW_2_0_OTP_FILE, 53 .fw = AR6003_HW_2_0_FIRMWARE_FILE, 54 .tcmd = AR6003_HW_2_0_TCMD_FIRMWARE_FILE, 55 .patch = AR6003_HW_2_0_PATCH_FILE, 56 }, 57 58 .fw_board = AR6003_HW_2_0_BOARD_DATA_FILE, 59 .fw_default_board = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE, 60 }, 61 { 62 .id = AR6003_HW_2_1_1_VERSION, 63 .name = "ar6003 hw 2.1.1", 64 .dataset_patch_addr = 0x57ff74, 65 .app_load_addr = 0x1234, 66 .board_ext_data_addr = 0x542330, 67 .reserved_ram_size = 512, 68 .refclk_hz = 26000000, 69 .uarttx_pin = 8, 70 .testscript_addr = 0x57ef74, 71 .flags = ATH6KL_HW_SDIO_CRC_ERROR_WAR, 72 73 .fw = { 74 .dir = AR6003_HW_2_1_1_FW_DIR, 75 .otp = AR6003_HW_2_1_1_OTP_FILE, 76 .fw = AR6003_HW_2_1_1_FIRMWARE_FILE, 77 .tcmd = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE, 78 .patch = AR6003_HW_2_1_1_PATCH_FILE, 79 .utf = AR6003_HW_2_1_1_UTF_FIRMWARE_FILE, 80 .testscript = AR6003_HW_2_1_1_TESTSCRIPT_FILE, 81 }, 82 83 .fw_board = AR6003_HW_2_1_1_BOARD_DATA_FILE, 84 .fw_default_board = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE, 85 }, 86 { 87 .id = AR6004_HW_1_0_VERSION, 88 .name = "ar6004 hw 1.0", 89 .dataset_patch_addr = 0x57e884, 90 .app_load_addr = 0x1234, 91 .board_ext_data_addr = 0x437000, 92 .reserved_ram_size = 19456, 93 .board_addr = 0x433900, 94 .refclk_hz = 26000000, 95 .uarttx_pin = 11, 96 .flags = ATH6KL_HW_64BIT_RATES | 97 ATH6KL_HW_AP_INACTIVITY_MINS, 98 99 .fw = { 100 .dir = AR6004_HW_1_0_FW_DIR, 101 .fw = AR6004_HW_1_0_FIRMWARE_FILE, 102 }, 103 104 .fw_board = AR6004_HW_1_0_BOARD_DATA_FILE, 105 .fw_default_board = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE, 106 }, 107 { 108 .id = AR6004_HW_1_1_VERSION, 109 .name = "ar6004 hw 1.1", 110 .dataset_patch_addr = 0x57e884, 111 .app_load_addr = 0x1234, 112 .board_ext_data_addr = 0x437000, 113 .reserved_ram_size = 11264, 114 .board_addr = 0x43d400, 115 .refclk_hz = 40000000, 116 .uarttx_pin = 11, 117 .flags = ATH6KL_HW_64BIT_RATES | 118 ATH6KL_HW_AP_INACTIVITY_MINS, 119 .fw = { 120 .dir = AR6004_HW_1_1_FW_DIR, 121 .fw = AR6004_HW_1_1_FIRMWARE_FILE, 122 }, 123 124 .fw_board = AR6004_HW_1_1_BOARD_DATA_FILE, 125 .fw_default_board = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE, 126 }, 127 { 128 .id = AR6004_HW_1_2_VERSION, 129 .name = "ar6004 hw 1.2", 130 .dataset_patch_addr = 0x436ecc, 131 .app_load_addr = 0x1234, 132 .board_ext_data_addr = 0x437000, 133 .reserved_ram_size = 9216, 134 .board_addr = 0x435c00, 135 .refclk_hz = 40000000, 136 .uarttx_pin = 11, 137 .flags = ATH6KL_HW_64BIT_RATES | 138 ATH6KL_HW_AP_INACTIVITY_MINS, 139 140 .fw = { 141 .dir = AR6004_HW_1_2_FW_DIR, 142 .fw = AR6004_HW_1_2_FIRMWARE_FILE, 143 }, 144 .fw_board = AR6004_HW_1_2_BOARD_DATA_FILE, 145 .fw_default_board = AR6004_HW_1_2_DEFAULT_BOARD_DATA_FILE, 146 }, 147 { 148 .id = AR6004_HW_1_3_VERSION, 149 .name = "ar6004 hw 1.3", 150 .dataset_patch_addr = 0x437860, 151 .app_load_addr = 0x1234, 152 .board_ext_data_addr = 0x437000, 153 .reserved_ram_size = 7168, 154 .board_addr = 0x436400, 155 .refclk_hz = 40000000, 156 .uarttx_pin = 11, 157 .flags = ATH6KL_HW_64BIT_RATES | 158 ATH6KL_HW_AP_INACTIVITY_MINS | 159 ATH6KL_HW_MAP_LP_ENDPOINT, 160 161 .fw = { 162 .dir = AR6004_HW_1_3_FW_DIR, 163 .fw = AR6004_HW_1_3_FIRMWARE_FILE, 164 }, 165 166 .fw_board = AR6004_HW_1_3_BOARD_DATA_FILE, 167 .fw_default_board = AR6004_HW_1_3_DEFAULT_BOARD_DATA_FILE, 168 }, 169 }; 170 171 /* 172 * Include definitions here that can be used to tune the WLAN module 173 * behavior. Different customers can tune the behavior as per their needs, 174 * here. 175 */ 176 177 /* 178 * This configuration item enable/disable keepalive support. 179 * Keepalive support: In the absence of any data traffic to AP, null 180 * frames will be sent to the AP at periodic interval, to keep the association 181 * active. This configuration item defines the periodic interval. 182 * Use value of zero to disable keepalive support 183 * Default: 60 seconds 184 */ 185 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60 186 187 /* 188 * This configuration item sets the value of disconnect timeout 189 * Firmware delays sending the disconnec event to the host for this 190 * timeout after is gets disconnected from the current AP. 191 * If the firmware successly roams within the disconnect timeout 192 * it sends a new connect event 193 */ 194 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10 195 196 197 #define ATH6KL_DATA_OFFSET 64 198 struct sk_buff *ath6kl_buf_alloc(int size) 199 { 200 struct sk_buff *skb; 201 u16 reserved; 202 203 /* Add chacheline space at front and back of buffer */ 204 reserved = roundup((2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET + 205 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES, 4); 206 skb = dev_alloc_skb(size + reserved); 207 208 if (skb) 209 skb_reserve(skb, reserved - L1_CACHE_BYTES); 210 return skb; 211 } 212 213 void ath6kl_init_profile_info(struct ath6kl_vif *vif) 214 { 215 vif->ssid_len = 0; 216 memset(vif->ssid, 0, sizeof(vif->ssid)); 217 218 vif->dot11_auth_mode = OPEN_AUTH; 219 vif->auth_mode = NONE_AUTH; 220 vif->prwise_crypto = NONE_CRYPT; 221 vif->prwise_crypto_len = 0; 222 vif->grp_crypto = NONE_CRYPT; 223 vif->grp_crypto_len = 0; 224 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); 225 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 226 memset(vif->bssid, 0, sizeof(vif->bssid)); 227 vif->bss_ch = 0; 228 } 229 230 static int ath6kl_set_host_app_area(struct ath6kl *ar) 231 { 232 u32 address, data; 233 struct host_app_area host_app_area; 234 235 /* Fetch the address of the host_app_area_s 236 * instance in the host interest area */ 237 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest)); 238 address = TARG_VTOP(ar->target_type, address); 239 240 if (ath6kl_diag_read32(ar, address, &data)) 241 return -EIO; 242 243 address = TARG_VTOP(ar->target_type, data); 244 host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION); 245 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area, 246 sizeof(struct host_app_area))) 247 return -EIO; 248 249 return 0; 250 } 251 252 static inline void set_ac2_ep_map(struct ath6kl *ar, 253 u8 ac, 254 enum htc_endpoint_id ep) 255 { 256 ar->ac2ep_map[ac] = ep; 257 ar->ep2ac_map[ep] = ac; 258 } 259 260 /* connect to a service */ 261 static int ath6kl_connectservice(struct ath6kl *ar, 262 struct htc_service_connect_req *con_req, 263 char *desc) 264 { 265 int status; 266 struct htc_service_connect_resp response; 267 268 memset(&response, 0, sizeof(response)); 269 270 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response); 271 if (status) { 272 ath6kl_err("failed to connect to %s service status:%d\n", 273 desc, status); 274 return status; 275 } 276 277 switch (con_req->svc_id) { 278 case WMI_CONTROL_SVC: 279 if (test_bit(WMI_ENABLED, &ar->flag)) 280 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint); 281 ar->ctrl_ep = response.endpoint; 282 break; 283 case WMI_DATA_BE_SVC: 284 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint); 285 break; 286 case WMI_DATA_BK_SVC: 287 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint); 288 break; 289 case WMI_DATA_VI_SVC: 290 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint); 291 break; 292 case WMI_DATA_VO_SVC: 293 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint); 294 break; 295 default: 296 ath6kl_err("service id is not mapped %d\n", con_req->svc_id); 297 return -EINVAL; 298 } 299 300 return 0; 301 } 302 303 static int ath6kl_init_service_ep(struct ath6kl *ar) 304 { 305 struct htc_service_connect_req connect; 306 307 memset(&connect, 0, sizeof(connect)); 308 309 /* these fields are the same for all service endpoints */ 310 connect.ep_cb.tx_comp_multi = ath6kl_tx_complete; 311 connect.ep_cb.rx = ath6kl_rx; 312 connect.ep_cb.rx_refill = ath6kl_rx_refill; 313 connect.ep_cb.tx_full = ath6kl_tx_queue_full; 314 315 /* 316 * Set the max queue depth so that our ath6kl_tx_queue_full handler 317 * gets called. 318 */ 319 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH; 320 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4; 321 if (!connect.ep_cb.rx_refill_thresh) 322 connect.ep_cb.rx_refill_thresh++; 323 324 /* connect to control service */ 325 connect.svc_id = WMI_CONTROL_SVC; 326 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL")) 327 return -EIO; 328 329 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN; 330 331 /* 332 * Limit the HTC message size on the send path, although e can 333 * receive A-MSDU frames of 4K, we will only send ethernet-sized 334 * (802.3) frames on the send path. 335 */ 336 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH; 337 338 /* 339 * To reduce the amount of committed memory for larger A_MSDU 340 * frames, use the recv-alloc threshold mechanism for larger 341 * packets. 342 */ 343 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE; 344 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf; 345 346 /* 347 * For the remaining data services set the connection flag to 348 * reduce dribbling, if configured to do so. 349 */ 350 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB; 351 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK; 352 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF; 353 354 connect.svc_id = WMI_DATA_BE_SVC; 355 356 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE")) 357 return -EIO; 358 359 /* connect to back-ground map this to WMI LOW_PRI */ 360 connect.svc_id = WMI_DATA_BK_SVC; 361 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK")) 362 return -EIO; 363 364 /* connect to Video service, map this to HI PRI */ 365 connect.svc_id = WMI_DATA_VI_SVC; 366 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI")) 367 return -EIO; 368 369 /* 370 * Connect to VO service, this is currently not mapped to a WMI 371 * priority stream due to historical reasons. WMI originally 372 * defined 3 priorities over 3 mailboxes We can change this when 373 * WMI is reworked so that priorities are not dependent on 374 * mailboxes. 375 */ 376 connect.svc_id = WMI_DATA_VO_SVC; 377 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO")) 378 return -EIO; 379 380 return 0; 381 } 382 383 void ath6kl_init_control_info(struct ath6kl_vif *vif) 384 { 385 ath6kl_init_profile_info(vif); 386 vif->def_txkey_index = 0; 387 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); 388 vif->ch_hint = 0; 389 } 390 391 /* 392 * Set HTC/Mbox operational parameters, this can only be called when the 393 * target is in the BMI phase. 394 */ 395 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val, 396 u8 htc_ctrl_buf) 397 { 398 int status; 399 u32 blk_size; 400 401 blk_size = ar->mbox_info.block_size; 402 403 if (htc_ctrl_buf) 404 blk_size |= ((u32)htc_ctrl_buf) << 16; 405 406 /* set the host interest area for the block size */ 407 status = ath6kl_bmi_write_hi32(ar, hi_mbox_io_block_sz, blk_size); 408 if (status) { 409 ath6kl_err("bmi_write_memory for IO block size failed\n"); 410 goto out; 411 } 412 413 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n", 414 blk_size, 415 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz))); 416 417 if (mbox_isr_yield_val) { 418 /* set the host interest area for the mbox ISR yield limit */ 419 status = ath6kl_bmi_write_hi32(ar, hi_mbox_isr_yield_limit, 420 mbox_isr_yield_val); 421 if (status) { 422 ath6kl_err("bmi_write_memory for yield limit failed\n"); 423 goto out; 424 } 425 } 426 427 out: 428 return status; 429 } 430 431 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx) 432 { 433 int ret; 434 435 /* 436 * Configure the device for rx dot11 header rules. "0,0" are the 437 * default values. Required if checksum offload is needed. Set 438 * RxMetaVersion to 2. 439 */ 440 ret = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx, 441 ar->rx_meta_ver, 0, 0); 442 if (ret) { 443 ath6kl_err("unable to set the rx frame format: %d\n", ret); 444 return ret; 445 } 446 447 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) { 448 ret = ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1, 449 IGNORE_PS_FAIL_DURING_SCAN); 450 if (ret) { 451 ath6kl_err("unable to set power save fail event policy: %d\n", 452 ret); 453 return ret; 454 } 455 } 456 457 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) { 458 ret = ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0, 459 WMI_FOLLOW_BARKER_IN_ERP); 460 if (ret) { 461 ath6kl_err("unable to set barker preamble policy: %d\n", 462 ret); 463 return ret; 464 } 465 } 466 467 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx, 468 WLAN_CONFIG_KEEP_ALIVE_INTERVAL); 469 if (ret) { 470 ath6kl_err("unable to set keep alive interval: %d\n", ret); 471 return ret; 472 } 473 474 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, idx, 475 WLAN_CONFIG_DISCONNECT_TIMEOUT); 476 if (ret) { 477 ath6kl_err("unable to set disconnect timeout: %d\n", ret); 478 return ret; 479 } 480 481 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) { 482 ret = ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED); 483 if (ret) { 484 ath6kl_err("unable to set txop bursting: %d\n", ret); 485 return ret; 486 } 487 } 488 489 if (ar->p2p && (ar->vif_max == 1 || idx)) { 490 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx, 491 P2P_FLAG_CAPABILITIES_REQ | 492 P2P_FLAG_MACADDR_REQ | 493 P2P_FLAG_HMODEL_REQ); 494 if (ret) { 495 ath6kl_dbg(ATH6KL_DBG_TRC, 496 "failed to request P2P capabilities (%d) - assuming P2P not supported\n", 497 ret); 498 ar->p2p = false; 499 } 500 } 501 502 if (ar->p2p && (ar->vif_max == 1 || idx)) { 503 /* Enable Probe Request reporting for P2P */ 504 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true); 505 if (ret) { 506 ath6kl_dbg(ATH6KL_DBG_TRC, 507 "failed to enable Probe Request reporting (%d)\n", 508 ret); 509 } 510 } 511 512 return ret; 513 } 514 515 int ath6kl_configure_target(struct ath6kl *ar) 516 { 517 u32 param, ram_reserved_size; 518 u8 fw_iftype, fw_mode = 0, fw_submode = 0; 519 int i, status; 520 521 param = !!(ar->conf_flags & ATH6KL_CONF_UART_DEBUG); 522 if (ath6kl_bmi_write_hi32(ar, hi_serial_enable, param)) { 523 ath6kl_err("bmi_write_memory for uart debug failed\n"); 524 return -EIO; 525 } 526 527 /* 528 * Note: Even though the firmware interface type is 529 * chosen as BSS_STA for all three interfaces, can 530 * be configured to IBSS/AP as long as the fw submode 531 * remains normal mode (0 - AP, STA and IBSS). But 532 * due to an target assert in firmware only one interface is 533 * configured for now. 534 */ 535 fw_iftype = HI_OPTION_FW_MODE_BSS_STA; 536 537 for (i = 0; i < ar->vif_max; i++) 538 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS); 539 540 /* 541 * Submodes when fw does not support dynamic interface 542 * switching: 543 * vif[0] - AP/STA/IBSS 544 * vif[1] - "P2P dev"/"P2P GO"/"P2P Client" 545 * vif[2] - "P2P dev"/"P2P GO"/"P2P Client" 546 * Otherwise, All the interface are initialized to p2p dev. 547 */ 548 549 if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 550 ar->fw_capabilities)) { 551 for (i = 0; i < ar->vif_max; i++) 552 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV << 553 (i * HI_OPTION_FW_SUBMODE_BITS); 554 } else { 555 for (i = 0; i < ar->max_norm_iface; i++) 556 fw_submode |= HI_OPTION_FW_SUBMODE_NONE << 557 (i * HI_OPTION_FW_SUBMODE_BITS); 558 559 for (i = ar->max_norm_iface; i < ar->vif_max; i++) 560 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV << 561 (i * HI_OPTION_FW_SUBMODE_BITS); 562 563 if (ar->p2p && ar->vif_max == 1) 564 fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV; 565 } 566 567 if (ath6kl_bmi_write_hi32(ar, hi_app_host_interest, 568 HTC_PROTOCOL_VERSION) != 0) { 569 ath6kl_err("bmi_write_memory for htc version failed\n"); 570 return -EIO; 571 } 572 573 /* set the firmware mode to STA/IBSS/AP */ 574 param = 0; 575 576 if (ath6kl_bmi_read_hi32(ar, hi_option_flag, ¶m) != 0) { 577 ath6kl_err("bmi_read_memory for setting fwmode failed\n"); 578 return -EIO; 579 } 580 581 param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT); 582 param |= fw_mode << HI_OPTION_FW_MODE_SHIFT; 583 param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT; 584 585 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT); 586 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT); 587 588 if (ath6kl_bmi_write_hi32(ar, hi_option_flag, param) != 0) { 589 ath6kl_err("bmi_write_memory for setting fwmode failed\n"); 590 return -EIO; 591 } 592 593 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n"); 594 595 /* 596 * Hardcode the address use for the extended board data 597 * Ideally this should be pre-allocate by the OS at boot time 598 * But since it is a new feature and board data is loaded 599 * at init time, we have to workaround this from host. 600 * It is difficult to patch the firmware boot code, 601 * but possible in theory. 602 */ 603 604 if (ar->target_type == TARGET_TYPE_AR6003) { 605 param = ar->hw.board_ext_data_addr; 606 ram_reserved_size = ar->hw.reserved_ram_size; 607 608 if (ath6kl_bmi_write_hi32(ar, hi_board_ext_data, param) != 0) { 609 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n"); 610 return -EIO; 611 } 612 613 if (ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz, 614 ram_reserved_size) != 0) { 615 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n"); 616 return -EIO; 617 } 618 } 619 620 /* set the block size for the target */ 621 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0)) 622 /* use default number of control buffers */ 623 return -EIO; 624 625 /* Configure GPIO AR600x UART */ 626 status = ath6kl_bmi_write_hi32(ar, hi_dbg_uart_txpin, 627 ar->hw.uarttx_pin); 628 if (status) 629 return status; 630 631 /* Configure target refclk_hz */ 632 status = ath6kl_bmi_write_hi32(ar, hi_refclk_hz, ar->hw.refclk_hz); 633 if (status) 634 return status; 635 636 return 0; 637 } 638 639 /* firmware upload */ 640 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename, 641 u8 **fw, size_t *fw_len) 642 { 643 const struct firmware *fw_entry; 644 int ret; 645 646 ret = request_firmware(&fw_entry, filename, ar->dev); 647 if (ret) 648 return ret; 649 650 *fw_len = fw_entry->size; 651 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL); 652 653 if (*fw == NULL) 654 ret = -ENOMEM; 655 656 release_firmware(fw_entry); 657 658 return ret; 659 } 660 661 #ifdef CONFIG_OF 662 /* 663 * Check the device tree for a board-id and use it to construct 664 * the pathname to the firmware file. Used (for now) to find a 665 * fallback to the "bdata.bin" file--typically a symlink to the 666 * appropriate board-specific file. 667 */ 668 static bool check_device_tree(struct ath6kl *ar) 669 { 670 static const char *board_id_prop = "atheros,board-id"; 671 struct device_node *node; 672 char board_filename[64]; 673 const char *board_id; 674 int ret; 675 676 for_each_compatible_node(node, NULL, "atheros,ath6kl") { 677 board_id = of_get_property(node, board_id_prop, NULL); 678 if (board_id == NULL) { 679 ath6kl_warn("No \"%s\" property on %s node.\n", 680 board_id_prop, node->name); 681 continue; 682 } 683 snprintf(board_filename, sizeof(board_filename), 684 "%s/bdata.%s.bin", ar->hw.fw.dir, board_id); 685 686 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board, 687 &ar->fw_board_len); 688 if (ret) { 689 ath6kl_err("Failed to get DT board file %s: %d\n", 690 board_filename, ret); 691 continue; 692 } 693 return true; 694 } 695 return false; 696 } 697 #else 698 static bool check_device_tree(struct ath6kl *ar) 699 { 700 return false; 701 } 702 #endif /* CONFIG_OF */ 703 704 static int ath6kl_fetch_board_file(struct ath6kl *ar) 705 { 706 const char *filename; 707 int ret; 708 709 if (ar->fw_board != NULL) 710 return 0; 711 712 if (WARN_ON(ar->hw.fw_board == NULL)) 713 return -EINVAL; 714 715 filename = ar->hw.fw_board; 716 717 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 718 &ar->fw_board_len); 719 if (ret == 0) { 720 /* managed to get proper board file */ 721 return 0; 722 } 723 724 if (check_device_tree(ar)) { 725 /* got board file from device tree */ 726 return 0; 727 } 728 729 /* there was no proper board file, try to use default instead */ 730 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n", 731 filename, ret); 732 733 filename = ar->hw.fw_default_board; 734 735 ret = ath6kl_get_fw(ar, filename, &ar->fw_board, 736 &ar->fw_board_len); 737 if (ret) { 738 ath6kl_err("Failed to get default board file %s: %d\n", 739 filename, ret); 740 return ret; 741 } 742 743 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n"); 744 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n"); 745 746 return 0; 747 } 748 749 static int ath6kl_fetch_otp_file(struct ath6kl *ar) 750 { 751 char filename[100]; 752 int ret; 753 754 if (ar->fw_otp != NULL) 755 return 0; 756 757 if (ar->hw.fw.otp == NULL) { 758 ath6kl_dbg(ATH6KL_DBG_BOOT, 759 "no OTP file configured for this hw\n"); 760 return 0; 761 } 762 763 snprintf(filename, sizeof(filename), "%s/%s", 764 ar->hw.fw.dir, ar->hw.fw.otp); 765 766 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp, 767 &ar->fw_otp_len); 768 if (ret) { 769 ath6kl_err("Failed to get OTP file %s: %d\n", 770 filename, ret); 771 return ret; 772 } 773 774 return 0; 775 } 776 777 static int ath6kl_fetch_testmode_file(struct ath6kl *ar) 778 { 779 char filename[100]; 780 int ret; 781 782 if (ar->testmode == 0) 783 return 0; 784 785 ath6kl_dbg(ATH6KL_DBG_BOOT, "testmode %d\n", ar->testmode); 786 787 if (ar->testmode == 2) { 788 if (ar->hw.fw.utf == NULL) { 789 ath6kl_warn("testmode 2 not supported\n"); 790 return -EOPNOTSUPP; 791 } 792 793 snprintf(filename, sizeof(filename), "%s/%s", 794 ar->hw.fw.dir, ar->hw.fw.utf); 795 } else { 796 if (ar->hw.fw.tcmd == NULL) { 797 ath6kl_warn("testmode 1 not supported\n"); 798 return -EOPNOTSUPP; 799 } 800 801 snprintf(filename, sizeof(filename), "%s/%s", 802 ar->hw.fw.dir, ar->hw.fw.tcmd); 803 } 804 805 set_bit(TESTMODE, &ar->flag); 806 807 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len); 808 if (ret) { 809 ath6kl_err("Failed to get testmode %d firmware file %s: %d\n", 810 ar->testmode, filename, ret); 811 return ret; 812 } 813 814 return 0; 815 } 816 817 static int ath6kl_fetch_fw_file(struct ath6kl *ar) 818 { 819 char filename[100]; 820 int ret; 821 822 if (ar->fw != NULL) 823 return 0; 824 825 /* FIXME: remove WARN_ON() as we won't support FW API 1 for long */ 826 if (WARN_ON(ar->hw.fw.fw == NULL)) 827 return -EINVAL; 828 829 snprintf(filename, sizeof(filename), "%s/%s", 830 ar->hw.fw.dir, ar->hw.fw.fw); 831 832 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len); 833 if (ret) { 834 ath6kl_err("Failed to get firmware file %s: %d\n", 835 filename, ret); 836 return ret; 837 } 838 839 return 0; 840 } 841 842 static int ath6kl_fetch_patch_file(struct ath6kl *ar) 843 { 844 char filename[100]; 845 int ret; 846 847 if (ar->fw_patch != NULL) 848 return 0; 849 850 if (ar->hw.fw.patch == NULL) 851 return 0; 852 853 snprintf(filename, sizeof(filename), "%s/%s", 854 ar->hw.fw.dir, ar->hw.fw.patch); 855 856 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch, 857 &ar->fw_patch_len); 858 if (ret) { 859 ath6kl_err("Failed to get patch file %s: %d\n", 860 filename, ret); 861 return ret; 862 } 863 864 return 0; 865 } 866 867 static int ath6kl_fetch_testscript_file(struct ath6kl *ar) 868 { 869 char filename[100]; 870 int ret; 871 872 if (ar->testmode != 2) 873 return 0; 874 875 if (ar->fw_testscript != NULL) 876 return 0; 877 878 if (ar->hw.fw.testscript == NULL) 879 return 0; 880 881 snprintf(filename, sizeof(filename), "%s/%s", 882 ar->hw.fw.dir, ar->hw.fw.testscript); 883 884 ret = ath6kl_get_fw(ar, filename, &ar->fw_testscript, 885 &ar->fw_testscript_len); 886 if (ret) { 887 ath6kl_err("Failed to get testscript file %s: %d\n", 888 filename, ret); 889 return ret; 890 } 891 892 return 0; 893 } 894 895 static int ath6kl_fetch_fw_api1(struct ath6kl *ar) 896 { 897 int ret; 898 899 ret = ath6kl_fetch_otp_file(ar); 900 if (ret) 901 return ret; 902 903 ret = ath6kl_fetch_fw_file(ar); 904 if (ret) 905 return ret; 906 907 ret = ath6kl_fetch_patch_file(ar); 908 if (ret) 909 return ret; 910 911 ret = ath6kl_fetch_testscript_file(ar); 912 if (ret) 913 return ret; 914 915 return 0; 916 } 917 918 static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name) 919 { 920 size_t magic_len, len, ie_len; 921 const struct firmware *fw; 922 struct ath6kl_fw_ie *hdr; 923 char filename[100]; 924 const u8 *data; 925 int ret, ie_id, i, index, bit; 926 __le32 *val; 927 928 snprintf(filename, sizeof(filename), "%s/%s", ar->hw.fw.dir, name); 929 930 ret = request_firmware(&fw, filename, ar->dev); 931 if (ret) 932 return ret; 933 934 data = fw->data; 935 len = fw->size; 936 937 /* magic also includes the null byte, check that as well */ 938 magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1; 939 940 if (len < magic_len) { 941 ret = -EINVAL; 942 goto out; 943 } 944 945 if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) { 946 ret = -EINVAL; 947 goto out; 948 } 949 950 len -= magic_len; 951 data += magic_len; 952 953 /* loop elements */ 954 while (len > sizeof(struct ath6kl_fw_ie)) { 955 /* hdr is unaligned! */ 956 hdr = (struct ath6kl_fw_ie *) data; 957 958 ie_id = le32_to_cpup(&hdr->id); 959 ie_len = le32_to_cpup(&hdr->len); 960 961 len -= sizeof(*hdr); 962 data += sizeof(*hdr); 963 964 if (len < ie_len) { 965 ret = -EINVAL; 966 goto out; 967 } 968 969 switch (ie_id) { 970 case ATH6KL_FW_IE_FW_VERSION: 971 strlcpy(ar->wiphy->fw_version, data, 972 sizeof(ar->wiphy->fw_version)); 973 974 ath6kl_dbg(ATH6KL_DBG_BOOT, 975 "found fw version %s\n", 976 ar->wiphy->fw_version); 977 break; 978 case ATH6KL_FW_IE_OTP_IMAGE: 979 ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n", 980 ie_len); 981 982 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL); 983 984 if (ar->fw_otp == NULL) { 985 ret = -ENOMEM; 986 goto out; 987 } 988 989 ar->fw_otp_len = ie_len; 990 break; 991 case ATH6KL_FW_IE_FW_IMAGE: 992 ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n", 993 ie_len); 994 995 /* in testmode we already might have a fw file */ 996 if (ar->fw != NULL) 997 break; 998 999 ar->fw = vmalloc(ie_len); 1000 1001 if (ar->fw == NULL) { 1002 ret = -ENOMEM; 1003 goto out; 1004 } 1005 1006 memcpy(ar->fw, data, ie_len); 1007 ar->fw_len = ie_len; 1008 break; 1009 case ATH6KL_FW_IE_PATCH_IMAGE: 1010 ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n", 1011 ie_len); 1012 1013 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL); 1014 1015 if (ar->fw_patch == NULL) { 1016 ret = -ENOMEM; 1017 goto out; 1018 } 1019 1020 ar->fw_patch_len = ie_len; 1021 break; 1022 case ATH6KL_FW_IE_RESERVED_RAM_SIZE: 1023 val = (__le32 *) data; 1024 ar->hw.reserved_ram_size = le32_to_cpup(val); 1025 1026 ath6kl_dbg(ATH6KL_DBG_BOOT, 1027 "found reserved ram size ie 0x%d\n", 1028 ar->hw.reserved_ram_size); 1029 break; 1030 case ATH6KL_FW_IE_CAPABILITIES: 1031 ath6kl_dbg(ATH6KL_DBG_BOOT, 1032 "found firmware capabilities ie (%zd B)\n", 1033 ie_len); 1034 1035 for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) { 1036 index = i / 8; 1037 bit = i % 8; 1038 1039 if (index == ie_len) 1040 break; 1041 1042 if (data[index] & (1 << bit)) 1043 __set_bit(i, ar->fw_capabilities); 1044 } 1045 1046 ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "", 1047 ar->fw_capabilities, 1048 sizeof(ar->fw_capabilities)); 1049 break; 1050 case ATH6KL_FW_IE_PATCH_ADDR: 1051 if (ie_len != sizeof(*val)) 1052 break; 1053 1054 val = (__le32 *) data; 1055 ar->hw.dataset_patch_addr = le32_to_cpup(val); 1056 1057 ath6kl_dbg(ATH6KL_DBG_BOOT, 1058 "found patch address ie 0x%x\n", 1059 ar->hw.dataset_patch_addr); 1060 break; 1061 case ATH6KL_FW_IE_BOARD_ADDR: 1062 if (ie_len != sizeof(*val)) 1063 break; 1064 1065 val = (__le32 *) data; 1066 ar->hw.board_addr = le32_to_cpup(val); 1067 1068 ath6kl_dbg(ATH6KL_DBG_BOOT, 1069 "found board address ie 0x%x\n", 1070 ar->hw.board_addr); 1071 break; 1072 case ATH6KL_FW_IE_VIF_MAX: 1073 if (ie_len != sizeof(*val)) 1074 break; 1075 1076 val = (__le32 *) data; 1077 ar->vif_max = min_t(unsigned int, le32_to_cpup(val), 1078 ATH6KL_VIF_MAX); 1079 1080 if (ar->vif_max > 1 && !ar->p2p) 1081 ar->max_norm_iface = 2; 1082 1083 ath6kl_dbg(ATH6KL_DBG_BOOT, 1084 "found vif max ie %d\n", ar->vif_max); 1085 break; 1086 default: 1087 ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n", 1088 le32_to_cpup(&hdr->id)); 1089 break; 1090 } 1091 1092 len -= ie_len; 1093 data += ie_len; 1094 }; 1095 1096 ret = 0; 1097 out: 1098 release_firmware(fw); 1099 1100 return ret; 1101 } 1102 1103 int ath6kl_init_fetch_firmwares(struct ath6kl *ar) 1104 { 1105 int ret; 1106 1107 ret = ath6kl_fetch_board_file(ar); 1108 if (ret) 1109 return ret; 1110 1111 ret = ath6kl_fetch_testmode_file(ar); 1112 if (ret) 1113 return ret; 1114 1115 ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API4_FILE); 1116 if (ret == 0) { 1117 ar->fw_api = 4; 1118 goto out; 1119 } 1120 1121 ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API3_FILE); 1122 if (ret == 0) { 1123 ar->fw_api = 3; 1124 goto out; 1125 } 1126 1127 ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API2_FILE); 1128 if (ret == 0) { 1129 ar->fw_api = 2; 1130 goto out; 1131 } 1132 1133 ret = ath6kl_fetch_fw_api1(ar); 1134 if (ret) 1135 return ret; 1136 1137 ar->fw_api = 1; 1138 1139 out: 1140 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api %d\n", ar->fw_api); 1141 1142 return 0; 1143 } 1144 1145 static int ath6kl_upload_board_file(struct ath6kl *ar) 1146 { 1147 u32 board_address, board_ext_address, param; 1148 u32 board_data_size, board_ext_data_size; 1149 int ret; 1150 1151 if (WARN_ON(ar->fw_board == NULL)) 1152 return -ENOENT; 1153 1154 /* 1155 * Determine where in Target RAM to write Board Data. 1156 * For AR6004, host determine Target RAM address for 1157 * writing board data. 1158 */ 1159 if (ar->hw.board_addr != 0) { 1160 board_address = ar->hw.board_addr; 1161 ath6kl_bmi_write_hi32(ar, hi_board_data, 1162 board_address); 1163 } else { 1164 ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address); 1165 } 1166 1167 /* determine where in target ram to write extended board data */ 1168 ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address); 1169 1170 if (ar->target_type == TARGET_TYPE_AR6003 && 1171 board_ext_address == 0) { 1172 ath6kl_err("Failed to get board file target address.\n"); 1173 return -EINVAL; 1174 } 1175 1176 switch (ar->target_type) { 1177 case TARGET_TYPE_AR6003: 1178 board_data_size = AR6003_BOARD_DATA_SZ; 1179 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ; 1180 if (ar->fw_board_len > (board_data_size + board_ext_data_size)) 1181 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ_V2; 1182 break; 1183 case TARGET_TYPE_AR6004: 1184 board_data_size = AR6004_BOARD_DATA_SZ; 1185 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ; 1186 break; 1187 default: 1188 WARN_ON(1); 1189 return -EINVAL; 1190 break; 1191 } 1192 1193 if (board_ext_address && 1194 ar->fw_board_len == (board_data_size + board_ext_data_size)) { 1195 /* write extended board data */ 1196 ath6kl_dbg(ATH6KL_DBG_BOOT, 1197 "writing extended board data to 0x%x (%d B)\n", 1198 board_ext_address, board_ext_data_size); 1199 1200 ret = ath6kl_bmi_write(ar, board_ext_address, 1201 ar->fw_board + board_data_size, 1202 board_ext_data_size); 1203 if (ret) { 1204 ath6kl_err("Failed to write extended board data: %d\n", 1205 ret); 1206 return ret; 1207 } 1208 1209 /* record that extended board data is initialized */ 1210 param = (board_ext_data_size << 16) | 1; 1211 1212 ath6kl_bmi_write_hi32(ar, hi_board_ext_data_config, param); 1213 } 1214 1215 if (ar->fw_board_len < board_data_size) { 1216 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len); 1217 ret = -EINVAL; 1218 return ret; 1219 } 1220 1221 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n", 1222 board_address, board_data_size); 1223 1224 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board, 1225 board_data_size); 1226 1227 if (ret) { 1228 ath6kl_err("Board file bmi write failed: %d\n", ret); 1229 return ret; 1230 } 1231 1232 /* record the fact that Board Data IS initialized */ 1233 ath6kl_bmi_write_hi32(ar, hi_board_data_initialized, 1); 1234 1235 return ret; 1236 } 1237 1238 static int ath6kl_upload_otp(struct ath6kl *ar) 1239 { 1240 u32 address, param; 1241 bool from_hw = false; 1242 int ret; 1243 1244 if (ar->fw_otp == NULL) 1245 return 0; 1246 1247 address = ar->hw.app_load_addr; 1248 1249 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address, 1250 ar->fw_otp_len); 1251 1252 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp, 1253 ar->fw_otp_len); 1254 if (ret) { 1255 ath6kl_err("Failed to upload OTP file: %d\n", ret); 1256 return ret; 1257 } 1258 1259 /* read firmware start address */ 1260 ret = ath6kl_bmi_read_hi32(ar, hi_app_start, &address); 1261 1262 if (ret) { 1263 ath6kl_err("Failed to read hi_app_start: %d\n", ret); 1264 return ret; 1265 } 1266 1267 if (ar->hw.app_start_override_addr == 0) { 1268 ar->hw.app_start_override_addr = address; 1269 from_hw = true; 1270 } 1271 1272 ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n", 1273 from_hw ? " (from hw)" : "", 1274 ar->hw.app_start_override_addr); 1275 1276 /* execute the OTP code */ 1277 ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n", 1278 ar->hw.app_start_override_addr); 1279 param = 0; 1280 ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, ¶m); 1281 1282 return ret; 1283 } 1284 1285 static int ath6kl_upload_firmware(struct ath6kl *ar) 1286 { 1287 u32 address; 1288 int ret; 1289 1290 if (WARN_ON(ar->fw == NULL)) 1291 return 0; 1292 1293 address = ar->hw.app_load_addr; 1294 1295 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n", 1296 address, ar->fw_len); 1297 1298 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len); 1299 1300 if (ret) { 1301 ath6kl_err("Failed to write firmware: %d\n", ret); 1302 return ret; 1303 } 1304 1305 /* 1306 * Set starting address for firmware 1307 * Don't need to setup app_start override addr on AR6004 1308 */ 1309 if (ar->target_type != TARGET_TYPE_AR6004) { 1310 address = ar->hw.app_start_override_addr; 1311 ath6kl_bmi_set_app_start(ar, address); 1312 } 1313 return ret; 1314 } 1315 1316 static int ath6kl_upload_patch(struct ath6kl *ar) 1317 { 1318 u32 address; 1319 int ret; 1320 1321 if (ar->fw_patch == NULL) 1322 return 0; 1323 1324 address = ar->hw.dataset_patch_addr; 1325 1326 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n", 1327 address, ar->fw_patch_len); 1328 1329 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len); 1330 if (ret) { 1331 ath6kl_err("Failed to write patch file: %d\n", ret); 1332 return ret; 1333 } 1334 1335 ath6kl_bmi_write_hi32(ar, hi_dset_list_head, address); 1336 1337 return 0; 1338 } 1339 1340 static int ath6kl_upload_testscript(struct ath6kl *ar) 1341 { 1342 u32 address; 1343 int ret; 1344 1345 if (ar->testmode != 2) 1346 return 0; 1347 1348 if (ar->fw_testscript == NULL) 1349 return 0; 1350 1351 address = ar->hw.testscript_addr; 1352 1353 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing testscript to 0x%x (%zd B)\n", 1354 address, ar->fw_testscript_len); 1355 1356 ret = ath6kl_bmi_write(ar, address, ar->fw_testscript, 1357 ar->fw_testscript_len); 1358 if (ret) { 1359 ath6kl_err("Failed to write testscript file: %d\n", ret); 1360 return ret; 1361 } 1362 1363 ath6kl_bmi_write_hi32(ar, hi_ota_testscript, address); 1364 ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz, 4096); 1365 ath6kl_bmi_write_hi32(ar, hi_test_apps_related, 1); 1366 1367 return 0; 1368 } 1369 1370 static int ath6kl_init_upload(struct ath6kl *ar) 1371 { 1372 u32 param, options, sleep, address; 1373 int status = 0; 1374 1375 if (ar->target_type != TARGET_TYPE_AR6003 && 1376 ar->target_type != TARGET_TYPE_AR6004) 1377 return -EINVAL; 1378 1379 /* temporarily disable system sleep */ 1380 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1381 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1382 if (status) 1383 return status; 1384 1385 options = param; 1386 1387 param |= ATH6KL_OPTION_SLEEP_DISABLE; 1388 status = ath6kl_bmi_reg_write(ar, address, param); 1389 if (status) 1390 return status; 1391 1392 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1393 status = ath6kl_bmi_reg_read(ar, address, ¶m); 1394 if (status) 1395 return status; 1396 1397 sleep = param; 1398 1399 param |= SM(SYSTEM_SLEEP_DISABLE, 1); 1400 status = ath6kl_bmi_reg_write(ar, address, param); 1401 if (status) 1402 return status; 1403 1404 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n", 1405 options, sleep); 1406 1407 /* program analog PLL register */ 1408 /* no need to control 40/44MHz clock on AR6004 */ 1409 if (ar->target_type != TARGET_TYPE_AR6004) { 1410 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER, 1411 0xF9104001); 1412 1413 if (status) 1414 return status; 1415 1416 /* Run at 80/88MHz by default */ 1417 param = SM(CPU_CLOCK_STANDARD, 1); 1418 1419 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS; 1420 status = ath6kl_bmi_reg_write(ar, address, param); 1421 if (status) 1422 return status; 1423 } 1424 1425 param = 0; 1426 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS; 1427 param = SM(LPO_CAL_ENABLE, 1); 1428 status = ath6kl_bmi_reg_write(ar, address, param); 1429 if (status) 1430 return status; 1431 1432 /* WAR to avoid SDIO CRC err */ 1433 if (ar->hw.flags & ATH6KL_HW_SDIO_CRC_ERROR_WAR) { 1434 ath6kl_err("temporary war to avoid sdio crc error\n"); 1435 1436 param = 0x28; 1437 address = GPIO_BASE_ADDRESS + GPIO_PIN9_ADDRESS; 1438 status = ath6kl_bmi_reg_write(ar, address, param); 1439 if (status) 1440 return status; 1441 1442 param = 0x20; 1443 1444 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS; 1445 status = ath6kl_bmi_reg_write(ar, address, param); 1446 if (status) 1447 return status; 1448 1449 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS; 1450 status = ath6kl_bmi_reg_write(ar, address, param); 1451 if (status) 1452 return status; 1453 1454 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS; 1455 status = ath6kl_bmi_reg_write(ar, address, param); 1456 if (status) 1457 return status; 1458 1459 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS; 1460 status = ath6kl_bmi_reg_write(ar, address, param); 1461 if (status) 1462 return status; 1463 } 1464 1465 /* write EEPROM data to Target RAM */ 1466 status = ath6kl_upload_board_file(ar); 1467 if (status) 1468 return status; 1469 1470 /* transfer One time Programmable data */ 1471 status = ath6kl_upload_otp(ar); 1472 if (status) 1473 return status; 1474 1475 /* Download Target firmware */ 1476 status = ath6kl_upload_firmware(ar); 1477 if (status) 1478 return status; 1479 1480 status = ath6kl_upload_patch(ar); 1481 if (status) 1482 return status; 1483 1484 /* Download the test script */ 1485 status = ath6kl_upload_testscript(ar); 1486 if (status) 1487 return status; 1488 1489 /* Restore system sleep */ 1490 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; 1491 status = ath6kl_bmi_reg_write(ar, address, sleep); 1492 if (status) 1493 return status; 1494 1495 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; 1496 param = options | 0x20; 1497 status = ath6kl_bmi_reg_write(ar, address, param); 1498 if (status) 1499 return status; 1500 1501 return status; 1502 } 1503 1504 int ath6kl_init_hw_params(struct ath6kl *ar) 1505 { 1506 const struct ath6kl_hw *uninitialized_var(hw); 1507 int i; 1508 1509 for (i = 0; i < ARRAY_SIZE(hw_list); i++) { 1510 hw = &hw_list[i]; 1511 1512 if (hw->id == ar->version.target_ver) 1513 break; 1514 } 1515 1516 if (i == ARRAY_SIZE(hw_list)) { 1517 ath6kl_err("Unsupported hardware version: 0x%x\n", 1518 ar->version.target_ver); 1519 return -EINVAL; 1520 } 1521 1522 ar->hw = *hw; 1523 1524 ath6kl_dbg(ATH6KL_DBG_BOOT, 1525 "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n", 1526 ar->version.target_ver, ar->target_type, 1527 ar->hw.dataset_patch_addr, ar->hw.app_load_addr); 1528 ath6kl_dbg(ATH6KL_DBG_BOOT, 1529 "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x", 1530 ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr, 1531 ar->hw.reserved_ram_size); 1532 ath6kl_dbg(ATH6KL_DBG_BOOT, 1533 "refclk_hz %d uarttx_pin %d", 1534 ar->hw.refclk_hz, ar->hw.uarttx_pin); 1535 1536 return 0; 1537 } 1538 1539 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type) 1540 { 1541 switch (type) { 1542 case ATH6KL_HIF_TYPE_SDIO: 1543 return "sdio"; 1544 case ATH6KL_HIF_TYPE_USB: 1545 return "usb"; 1546 } 1547 1548 return NULL; 1549 } 1550 1551 1552 static const struct fw_capa_str_map { 1553 int id; 1554 const char *name; 1555 } fw_capa_map[] = { 1556 { ATH6KL_FW_CAPABILITY_HOST_P2P, "host-p2p" }, 1557 { ATH6KL_FW_CAPABILITY_SCHED_SCAN, "sched-scan" }, 1558 { ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, "sta-p2pdev-duplex" }, 1559 { ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, "inactivity-timeout" }, 1560 { ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, "rsn-cap-override" }, 1561 { ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, "wow-mc-filter" }, 1562 { ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, "bmiss-enhance" }, 1563 { ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, "sscan-match-list" }, 1564 { ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, "rssi-scan-thold" }, 1565 { ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, "custom-mac-addr" }, 1566 { ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, "tx-err-notify" }, 1567 { ATH6KL_FW_CAPABILITY_REGDOMAIN, "regdomain" }, 1568 { ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, "sched-scan-v2" }, 1569 { ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL, "hb-poll" }, 1570 }; 1571 1572 static const char *ath6kl_init_get_fw_capa_name(unsigned int id) 1573 { 1574 int i; 1575 1576 for (i = 0; i < ARRAY_SIZE(fw_capa_map); i++) { 1577 if (fw_capa_map[i].id == id) 1578 return fw_capa_map[i].name; 1579 } 1580 1581 return "<unknown>"; 1582 } 1583 1584 static void ath6kl_init_get_fwcaps(struct ath6kl *ar, char *buf, size_t buf_len) 1585 { 1586 u8 *data = (u8 *) ar->fw_capabilities; 1587 size_t trunc_len, len = 0; 1588 int i, index, bit; 1589 char *trunc = "..."; 1590 1591 for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) { 1592 index = i / 8; 1593 bit = i % 8; 1594 1595 if (index >= sizeof(ar->fw_capabilities) * 4) 1596 break; 1597 1598 if (buf_len - len < 4) { 1599 ath6kl_warn("firmware capability buffer too small!\n"); 1600 1601 /* add "..." to the end of string */ 1602 trunc_len = strlen(trunc) + 1; 1603 strncpy(buf + buf_len - trunc_len, trunc, trunc_len); 1604 1605 return; 1606 } 1607 1608 if (data[index] & (1 << bit)) { 1609 len += scnprintf(buf + len, buf_len - len, "%s,", 1610 ath6kl_init_get_fw_capa_name(i)); 1611 } 1612 } 1613 1614 /* overwrite the last comma */ 1615 if (len > 0) 1616 len--; 1617 1618 buf[len] = '\0'; 1619 } 1620 1621 static int ath6kl_init_hw_reset(struct ath6kl *ar) 1622 { 1623 ath6kl_dbg(ATH6KL_DBG_BOOT, "cold resetting the device"); 1624 1625 return ath6kl_diag_write32(ar, RESET_CONTROL_ADDRESS, 1626 cpu_to_le32(RESET_CONTROL_COLD_RST)); 1627 } 1628 1629 static int __ath6kl_init_hw_start(struct ath6kl *ar) 1630 { 1631 long timeleft; 1632 int ret, i; 1633 char buf[200]; 1634 1635 ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n"); 1636 1637 ret = ath6kl_hif_power_on(ar); 1638 if (ret) 1639 return ret; 1640 1641 ret = ath6kl_configure_target(ar); 1642 if (ret) 1643 goto err_power_off; 1644 1645 ret = ath6kl_init_upload(ar); 1646 if (ret) 1647 goto err_power_off; 1648 1649 /* Do we need to finish the BMI phase */ 1650 ret = ath6kl_bmi_done(ar); 1651 if (ret) 1652 goto err_power_off; 1653 1654 /* 1655 * The reason we have to wait for the target here is that the 1656 * driver layer has to init BMI in order to set the host block 1657 * size. 1658 */ 1659 ret = ath6kl_htc_wait_target(ar->htc_target); 1660 1661 if (ret == -ETIMEDOUT) { 1662 /* 1663 * Most likely USB target is in odd state after reboot and 1664 * needs a reset. A cold reset makes the whole device 1665 * disappear from USB bus and initialisation starts from 1666 * beginning. 1667 */ 1668 ath6kl_warn("htc wait target timed out, resetting device\n"); 1669 ath6kl_init_hw_reset(ar); 1670 goto err_power_off; 1671 } else if (ret) { 1672 ath6kl_err("htc wait target failed: %d\n", ret); 1673 goto err_power_off; 1674 } 1675 1676 ret = ath6kl_init_service_ep(ar); 1677 if (ret) { 1678 ath6kl_err("Endpoint service initilisation failed: %d\n", ret); 1679 goto err_cleanup_scatter; 1680 } 1681 1682 /* setup credit distribution */ 1683 ath6kl_htc_credit_setup(ar->htc_target, &ar->credit_state_info); 1684 1685 /* start HTC */ 1686 ret = ath6kl_htc_start(ar->htc_target); 1687 if (ret) { 1688 /* FIXME: call this */ 1689 ath6kl_cookie_cleanup(ar); 1690 goto err_cleanup_scatter; 1691 } 1692 1693 /* Wait for Wmi event to be ready */ 1694 timeleft = wait_event_interruptible_timeout(ar->event_wq, 1695 test_bit(WMI_READY, 1696 &ar->flag), 1697 WMI_TIMEOUT); 1698 if (timeleft <= 0) { 1699 clear_bit(WMI_READY, &ar->flag); 1700 ath6kl_err("wmi is not ready or wait was interrupted: %ld\n", 1701 timeleft); 1702 ret = -EIO; 1703 goto err_htc_stop; 1704 } 1705 1706 ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n"); 1707 1708 if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) { 1709 ath6kl_info("%s %s fw %s api %d%s\n", 1710 ar->hw.name, 1711 ath6kl_init_get_hif_name(ar->hif_type), 1712 ar->wiphy->fw_version, 1713 ar->fw_api, 1714 test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); 1715 ath6kl_init_get_fwcaps(ar, buf, sizeof(buf)); 1716 ath6kl_info("firmware supports: %s\n", buf); 1717 } 1718 1719 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { 1720 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", 1721 ATH6KL_ABI_VERSION, ar->version.abi_ver); 1722 ret = -EIO; 1723 goto err_htc_stop; 1724 } 1725 1726 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); 1727 1728 /* communicate the wmi protocol verision to the target */ 1729 /* FIXME: return error */ 1730 if ((ath6kl_set_host_app_area(ar)) != 0) 1731 ath6kl_err("unable to set the host app area\n"); 1732 1733 for (i = 0; i < ar->vif_max; i++) { 1734 ret = ath6kl_target_config_wlan_params(ar, i); 1735 if (ret) 1736 goto err_htc_stop; 1737 } 1738 1739 return 0; 1740 1741 err_htc_stop: 1742 ath6kl_htc_stop(ar->htc_target); 1743 err_cleanup_scatter: 1744 ath6kl_hif_cleanup_scatter(ar); 1745 err_power_off: 1746 ath6kl_hif_power_off(ar); 1747 1748 return ret; 1749 } 1750 1751 int ath6kl_init_hw_start(struct ath6kl *ar) 1752 { 1753 int err; 1754 1755 err = __ath6kl_init_hw_start(ar); 1756 if (err) 1757 return err; 1758 ar->state = ATH6KL_STATE_ON; 1759 return 0; 1760 } 1761 1762 static int __ath6kl_init_hw_stop(struct ath6kl *ar) 1763 { 1764 int ret; 1765 1766 ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n"); 1767 1768 ath6kl_htc_stop(ar->htc_target); 1769 1770 ath6kl_hif_stop(ar); 1771 1772 ath6kl_bmi_reset(ar); 1773 1774 ret = ath6kl_hif_power_off(ar); 1775 if (ret) 1776 ath6kl_warn("failed to power off hif: %d\n", ret); 1777 1778 return 0; 1779 } 1780 1781 int ath6kl_init_hw_stop(struct ath6kl *ar) 1782 { 1783 int err; 1784 1785 err = __ath6kl_init_hw_stop(ar); 1786 if (err) 1787 return err; 1788 ar->state = ATH6KL_STATE_OFF; 1789 return 0; 1790 } 1791 1792 void ath6kl_init_hw_restart(struct ath6kl *ar) 1793 { 1794 clear_bit(WMI_READY, &ar->flag); 1795 1796 ath6kl_cfg80211_stop_all(ar); 1797 1798 if (__ath6kl_init_hw_stop(ar)) { 1799 ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to stop during fw error recovery\n"); 1800 return; 1801 } 1802 1803 if (__ath6kl_init_hw_start(ar)) { 1804 ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to restart during fw error recovery\n"); 1805 return; 1806 } 1807 } 1808 1809 void ath6kl_stop_txrx(struct ath6kl *ar) 1810 { 1811 struct ath6kl_vif *vif, *tmp_vif; 1812 int i; 1813 1814 set_bit(DESTROY_IN_PROGRESS, &ar->flag); 1815 1816 if (down_interruptible(&ar->sem)) { 1817 ath6kl_err("down_interruptible failed\n"); 1818 return; 1819 } 1820 1821 for (i = 0; i < AP_MAX_NUM_STA; i++) 1822 aggr_reset_state(ar->sta_list[i].aggr_conn); 1823 1824 spin_lock_bh(&ar->list_lock); 1825 list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) { 1826 list_del(&vif->list); 1827 spin_unlock_bh(&ar->list_lock); 1828 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); 1829 rtnl_lock(); 1830 ath6kl_cfg80211_vif_cleanup(vif); 1831 rtnl_unlock(); 1832 spin_lock_bh(&ar->list_lock); 1833 } 1834 spin_unlock_bh(&ar->list_lock); 1835 1836 clear_bit(WMI_READY, &ar->flag); 1837 1838 if (ar->fw_recovery.enable) 1839 del_timer_sync(&ar->fw_recovery.hb_timer); 1840 1841 /* 1842 * After wmi_shudown all WMI events will be dropped. We 1843 * need to cleanup the buffers allocated in AP mode and 1844 * give disconnect notification to stack, which usually 1845 * happens in the disconnect_event. Simulate the disconnect 1846 * event by calling the function directly. Sometimes 1847 * disconnect_event will be received when the debug logs 1848 * are collected. 1849 */ 1850 ath6kl_wmi_shutdown(ar->wmi); 1851 1852 clear_bit(WMI_ENABLED, &ar->flag); 1853 if (ar->htc_target) { 1854 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__); 1855 ath6kl_htc_stop(ar->htc_target); 1856 } 1857 1858 /* 1859 * Try to reset the device if we can. The driver may have been 1860 * configure NOT to reset the target during a debug session. 1861 */ 1862 ath6kl_init_hw_reset(ar); 1863 1864 up(&ar->sem); 1865 } 1866 EXPORT_SYMBOL(ath6kl_stop_txrx); 1867