Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2015 The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * This file was originally distributed by Qualcomm Atheros, Inc. |
| 24 | * under proprietary terms before Copyright ownership was assigned |
| 25 | * to the Linux Foundation. |
| 26 | */ |
| 27 | |
| 28 | #include <osdep.h> |
| 29 | #include "a_types.h" |
| 30 | #include "athdefs.h" |
| 31 | #include "osapi_linux.h" |
| 32 | #include "targcfg.h" |
| 33 | #include "cdf_lock.h" |
| 34 | #include "cdf_status.h" |
| 35 | #include <cdf_atomic.h> /* cdf_atomic_read */ |
| 36 | #include <targaddrs.h> |
| 37 | #include <bmi_msg.h> |
| 38 | #include "hif_io32.h" |
| 39 | #include <hif.h> |
| 40 | #include <htc_services.h> |
| 41 | #include "regtable.h" |
| 42 | #define ATH_MODULE_NAME hif |
| 43 | #include <a_debug.h> |
| 44 | #include "hif_main.h" |
| 45 | #include "hif_hw_version.h" |
| 46 | #include "ce_api.h" |
| 47 | #include "ce_tasklet.h" |
| 48 | #include "cdf_trace.h" |
| 49 | #include "cdf_status.h" |
| 50 | #include "cds_api.h" |
| 51 | #ifdef CONFIG_CNSS |
| 52 | #include <net/cnss.h> |
| 53 | #endif |
| 54 | #include <cds_get_bin.h> |
| 55 | #include "epping_main.h" |
| 56 | #include "hif_debug.h" |
| 57 | #include "mp_dev.h" |
| 58 | #ifdef HIF_PCI |
| 59 | #include "icnss_stub.h" |
| 60 | #else |
| 61 | #include <soc/qcom/icnss.h> |
| 62 | #endif |
| 63 | |
| 64 | #ifndef REMOVE_PKT_LOG |
| 65 | #include "pktlog_ac.h" |
| 66 | #endif |
| 67 | |
| 68 | #define AGC_DUMP 1 |
| 69 | #define CHANINFO_DUMP 2 |
| 70 | #define BB_WATCHDOG_DUMP 3 |
| 71 | #ifdef CONFIG_ATH_PCIE_ACCESS_DEBUG |
| 72 | #define PCIE_ACCESS_DUMP 4 |
| 73 | #endif |
| 74 | |
| 75 | void hif_dump(struct ol_softc *scn, uint8_t cmd_id, bool start) |
| 76 | { |
| 77 | switch (cmd_id) { |
| 78 | case AGC_DUMP: |
| 79 | if (start) |
| 80 | priv_start_agc(scn); |
| 81 | else |
| 82 | priv_dump_agc(scn); |
| 83 | break; |
| 84 | |
| 85 | case CHANINFO_DUMP: |
| 86 | if (start) |
| 87 | priv_start_cap_chaninfo(scn); |
| 88 | else |
| 89 | priv_dump_chaninfo(scn); |
| 90 | break; |
| 91 | |
| 92 | case BB_WATCHDOG_DUMP: |
| 93 | priv_dump_bbwatchdog(scn); |
| 94 | break; |
| 95 | |
| 96 | #ifdef CONFIG_ATH_PCIE_ACCESS_DEBUG |
| 97 | case PCIE_ACCESS_DUMP: |
| 98 | hif_target_dump_access_log(); |
| 99 | break; |
| 100 | #endif |
| 101 | default: |
| 102 | HIF_ERROR("%s: Invalid htc dump command", __func__); |
| 103 | break; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * hif_shut_down_device() - hif_shut_down_device |
| 109 | * |
| 110 | * SThis fucntion shuts down the device |
| 111 | * |
| 112 | * @scn: ol_softc |
| 113 | * |
| 114 | * Return: void |
| 115 | */ |
| 116 | void hif_shut_down_device(struct ol_softc *scn) |
| 117 | { |
| 118 | if (scn && scn->hif_hdl) { |
| 119 | struct HIF_CE_state *hif_state = |
| 120 | (struct HIF_CE_state *)scn->hif_hdl; |
| 121 | |
| 122 | hif_stop(scn); |
| 123 | cdf_mem_free(hif_state); |
| 124 | scn->hif_hdl = NULL; |
| 125 | } |
| 126 | |
| 127 | } |
| 128 | |
| 129 | |
| 130 | |
| 131 | /** |
| 132 | * hif_cancel_deferred_target_sleep() - cancel deferred target sleep |
| 133 | * |
| 134 | * This function cancels the defered target sleep |
| 135 | * |
| 136 | * @scn: ol_softc |
| 137 | * |
| 138 | * Return: void |
| 139 | */ |
| 140 | void hif_cancel_deferred_target_sleep(struct ol_softc *scn) |
| 141 | { |
| 142 | hif_pci_cancel_deferred_target_sleep(scn); |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * hif_get_target_id(): hif_get_target_id |
| 147 | * |
| 148 | * Return the virtual memory base address to the caller |
| 149 | * |
| 150 | * @scn: ol_softc |
| 151 | * |
| 152 | * Return: A_target_id_t |
| 153 | */ |
| 154 | A_target_id_t hif_get_target_id(struct ol_softc *scn) |
| 155 | { |
| 156 | return scn->mem; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * hif_set_target_sleep(): hif_set_target_sleep |
| 161 | * @scn: scn |
| 162 | * @sleep_ok: sleep_ok |
| 163 | * @wait_for_it: wait |
| 164 | * |
| 165 | * Return: void |
| 166 | */ |
| 167 | void hif_set_target_sleep(struct ol_softc *scn, |
| 168 | bool sleep_ok, bool wait_for_it) |
| 169 | { |
| 170 | hif_target_sleep_state_adjust(scn, |
| 171 | sleep_ok, wait_for_it); |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * hif_target_forced_awake(): hif_target_forced_awake |
| 176 | * @scn: scn |
| 177 | * |
| 178 | * Return: bool |
| 179 | */ |
| 180 | bool hif_target_forced_awake(struct ol_softc *scn) |
| 181 | { |
| 182 | A_target_id_t addr = scn->mem; |
| 183 | bool awake; |
| 184 | bool forced_awake; |
| 185 | |
| 186 | awake = hif_targ_is_awake(scn, addr); |
| 187 | |
| 188 | forced_awake = |
| 189 | !!(hif_read32_mb |
| 190 | (addr + PCIE_LOCAL_BASE_ADDRESS + |
| 191 | PCIE_SOC_WAKE_ADDRESS) & PCIE_SOC_WAKE_V_MASK); |
| 192 | |
| 193 | return awake && forced_awake; |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * hif_fw_interrupt_handler(): FW interrupt handler |
| 198 | * |
| 199 | * This function is the FW interrupt handlder |
| 200 | * |
| 201 | * @irq: irq number |
| 202 | * @arg: the user pointer |
| 203 | * |
| 204 | * Return: bool |
| 205 | */ |
| 206 | #ifndef QCA_WIFI_3_0 |
| 207 | irqreturn_t hif_fw_interrupt_handler(int irq, void *arg) |
| 208 | { |
| 209 | struct ol_softc *scn = arg; |
| 210 | struct HIF_CE_state *hif_state = (struct HIF_CE_state *)scn->hif_hdl; |
| 211 | uint32_t fw_indicator_address, fw_indicator; |
| 212 | |
| 213 | A_TARGET_ACCESS_BEGIN_RET(scn); |
| 214 | |
| 215 | fw_indicator_address = hif_state->fw_indicator_address; |
| 216 | /* For sudden unplug this will return ~0 */ |
| 217 | fw_indicator = A_TARGET_READ(scn, fw_indicator_address); |
| 218 | |
| 219 | if ((fw_indicator != ~0) && (fw_indicator & FW_IND_EVENT_PENDING)) { |
| 220 | /* ACK: clear Target-side pending event */ |
| 221 | A_TARGET_WRITE(scn, fw_indicator_address, |
| 222 | fw_indicator & ~FW_IND_EVENT_PENDING); |
| 223 | A_TARGET_ACCESS_END_RET(scn); |
| 224 | |
| 225 | if (hif_state->started) { |
| 226 | /* Alert the Host-side service thread */ |
| 227 | atomic_set(&hif_state->fw_event_pending, 1); |
| 228 | hif_completion_thread(hif_state); |
| 229 | } else { |
| 230 | /* |
| 231 | * Probable Target failure before we're prepared |
| 232 | * to handle it. Generally unexpected. |
| 233 | */ |
| 234 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 235 | ("%s: Early firmware event indicated\n", |
| 236 | __func__)); |
| 237 | } |
| 238 | } else { |
| 239 | A_TARGET_ACCESS_END_RET(scn); |
| 240 | } |
| 241 | |
| 242 | return ATH_ISR_SCHED; |
| 243 | } |
| 244 | #else |
| 245 | irqreturn_t hif_fw_interrupt_handler(int irq, void *arg) |
| 246 | { |
| 247 | return ATH_ISR_SCHED; |
| 248 | } |
| 249 | #endif /* #ifdef QCA_WIFI_3_0 */ |
| 250 | |
| 251 | /** |
| 252 | * hif_get_targetdef(): hif_get_targetdef |
| 253 | * @scn: scn |
| 254 | * |
| 255 | * Return: void * |
| 256 | */ |
| 257 | void *hif_get_targetdef(struct ol_softc *scn) |
| 258 | { |
| 259 | return scn->targetdef; |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * hif_vote_link_down(): unvote for link up |
| 264 | * |
| 265 | * Call hif_vote_link_down to release a previous request made using |
| 266 | * hif_vote_link_up. A hif_vote_link_down call should only be made |
| 267 | * after a corresponding hif_vote_link_up, otherwise you could be |
| 268 | * negating a vote from another source. When no votes are present |
| 269 | * hif will not guarantee the linkstate after hif_bus_suspend. |
| 270 | * |
| 271 | * SYNCHRONIZE WITH hif_vote_link_up by only calling in MC thread |
| 272 | * and initialization deinitialization sequencences. |
| 273 | * |
| 274 | * Return: n/a |
| 275 | */ |
| 276 | void hif_vote_link_down(void) |
| 277 | { |
| 278 | struct ol_softc *scn = cds_get_context(CDF_MODULE_ID_HIF); |
| 279 | CDF_BUG(scn); |
| 280 | |
| 281 | scn->linkstate_vote--; |
| 282 | if (scn->linkstate_vote == 0) |
| 283 | hif_bus_prevent_linkdown(false); |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * hif_vote_link_up(): vote to prevent bus from suspending |
| 288 | * |
| 289 | * Makes hif guarantee that fw can message the host normally |
| 290 | * durring suspend. |
| 291 | * |
| 292 | * SYNCHRONIZE WITH hif_vote_link_up by only calling in MC thread |
| 293 | * and initialization deinitialization sequencences. |
| 294 | * |
| 295 | * Return: n/a |
| 296 | */ |
| 297 | void hif_vote_link_up(void) |
| 298 | { |
| 299 | struct ol_softc *scn = cds_get_context(CDF_MODULE_ID_HIF); |
| 300 | CDF_BUG(scn); |
| 301 | |
| 302 | scn->linkstate_vote++; |
| 303 | if (scn->linkstate_vote == 1) |
| 304 | hif_bus_prevent_linkdown(true); |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * hif_can_suspend_link(): query if hif is permitted to suspend the link |
| 309 | * |
| 310 | * Hif will ensure that the link won't be suspended if the upperlayers |
| 311 | * don't want it to. |
| 312 | * |
| 313 | * SYNCHRONIZATION: MC thread is stopped before bus suspend thus |
| 314 | * we don't need extra locking to ensure votes dont change while |
| 315 | * we are in the process of suspending or resuming. |
| 316 | * |
| 317 | * Return: false if hif will guarantee link up durring suspend. |
| 318 | */ |
| 319 | bool hif_can_suspend_link(void) |
| 320 | { |
| 321 | struct ol_softc *scn = cds_get_context(CDF_MODULE_ID_HIF); |
| 322 | CDF_BUG(scn); |
| 323 | |
| 324 | return scn->linkstate_vote == 0; |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * hif_hia_item_address(): hif_hia_item_address |
| 329 | * @target_type: target_type |
| 330 | * @item_offset: item_offset |
| 331 | * |
| 332 | * Return: n/a |
| 333 | */ |
| 334 | uint32_t hif_hia_item_address(uint32_t target_type, uint32_t item_offset) |
| 335 | { |
| 336 | switch (target_type) { |
| 337 | case TARGET_TYPE_AR6002: |
| 338 | return AR6002_HOST_INTEREST_ADDRESS + item_offset; |
| 339 | case TARGET_TYPE_AR6003: |
| 340 | return AR6003_HOST_INTEREST_ADDRESS + item_offset; |
| 341 | case TARGET_TYPE_AR6004: |
| 342 | return AR6004_HOST_INTEREST_ADDRESS + item_offset; |
| 343 | case TARGET_TYPE_AR6006: |
| 344 | return AR6006_HOST_INTEREST_ADDRESS + item_offset; |
| 345 | case TARGET_TYPE_AR9888: |
| 346 | return AR9888_HOST_INTEREST_ADDRESS + item_offset; |
| 347 | case TARGET_TYPE_AR6320: |
| 348 | case TARGET_TYPE_AR6320V2: |
| 349 | return AR6320_HOST_INTEREST_ADDRESS + item_offset; |
| 350 | case TARGET_TYPE_QCA6180: |
| 351 | return QCA6180_HOST_INTEREST_ADDRESS + item_offset; |
| 352 | case TARGET_TYPE_ADRASTEA: |
| 353 | /* ADRASTEA doesn't have a host interest address */ |
| 354 | ASSERT(0); |
| 355 | return 0; |
| 356 | default: |
| 357 | ASSERT(0); |
| 358 | return 0; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * hif_max_num_receives_reached() - check max receive is reached |
| 364 | * @count: unsigned int. |
| 365 | * |
| 366 | * Output check status as bool |
| 367 | * |
| 368 | * Return: bool |
| 369 | */ |
| 370 | bool hif_max_num_receives_reached(unsigned int count) |
| 371 | { |
| 372 | if (WLAN_IS_EPPING_ENABLED(cds_get_conparam())) |
| 373 | return count > 120; |
| 374 | else |
| 375 | return count > MAX_NUM_OF_RECEIVES; |
| 376 | } |
| 377 | |
| 378 | /** |
| 379 | * init_buffer_count() - initial buffer count |
| 380 | * @maxSize: cdf_size_t |
| 381 | * |
| 382 | * routine to modify the initial buffer count to be allocated on an os |
| 383 | * platform basis. Platform owner will need to modify this as needed |
| 384 | * |
| 385 | * Return: cdf_size_t |
| 386 | */ |
| 387 | cdf_size_t init_buffer_count(cdf_size_t maxSize) |
| 388 | { |
| 389 | return maxSize; |
| 390 | } |
| 391 | |
| 392 | /** |
| 393 | * hif_init_cdf_ctx(): hif_init_cdf_ctx |
| 394 | * @hif_ctx: hif_ctx |
| 395 | * |
| 396 | * Return: int |
| 397 | */ |
| 398 | int hif_init_cdf_ctx(void *hif_ctx) |
| 399 | { |
| 400 | cdf_device_t cdf_ctx; |
| 401 | struct ol_softc *scn = (struct ol_softc *)hif_ctx; |
| 402 | |
| 403 | cdf_ctx = cds_get_context(CDF_MODULE_ID_CDF_DEVICE); |
| 404 | if (!cdf_ctx) { |
| 405 | HIF_ERROR("%s: CDF is NULL", __func__); |
| 406 | return -ENOMEM; |
| 407 | } |
| 408 | |
| 409 | cdf_ctx->drv = &scn->aps_osdev; |
| 410 | cdf_ctx->drv_hdl = scn->aps_osdev.bdev; |
| 411 | cdf_ctx->dev = scn->aps_osdev.device; |
| 412 | scn->cdf_dev = cdf_ctx; |
| 413 | return 0; |
| 414 | } |
| 415 | |
| 416 | /** |
| 417 | * hif_deinit_cdf_ctx(): hif_deinit_cdf_ctx |
| 418 | * @hif_ctx: hif_ctx |
| 419 | * |
| 420 | * Return: void |
| 421 | */ |
| 422 | void hif_deinit_cdf_ctx(void *hif_ctx) |
| 423 | { |
| 424 | struct ol_softc *scn = (struct ol_softc *)hif_ctx; |
| 425 | |
| 426 | if (scn == NULL || !scn->cdf_dev) |
| 427 | return; |
| 428 | scn->cdf_dev = NULL; |
| 429 | } |
| 430 | |
| 431 | /** |
| 432 | * hif_save_htc_htt_config_endpoint(): |
| 433 | * hif_save_htc_htt_config_endpoint |
| 434 | * @htc_endpoint: htc_endpoint |
| 435 | * |
| 436 | * Return: void |
| 437 | */ |
| 438 | void hif_save_htc_htt_config_endpoint(int htc_endpoint) |
| 439 | { |
| 440 | struct ol_softc *scn = cds_get_context(CDF_MODULE_ID_HIF); |
| 441 | |
| 442 | if (!scn) { |
| 443 | HIF_ERROR("%s: error: scn or scn->hif_sc is NULL!", |
| 444 | __func__); |
| 445 | return; |
| 446 | } |
| 447 | |
| 448 | scn->htc_endpoint = htc_endpoint; |
| 449 | } |
| 450 | |
| 451 | /** |
| 452 | * hif_get_hw_name(): get a human readable name for the hardware |
| 453 | * |
| 454 | * Return: human readible name for the underlying wifi hardware. |
| 455 | */ |
| 456 | const char *hif_get_hw_name(struct ol_softc *scn) |
| 457 | { |
| 458 | int i; |
| 459 | for (i = 0; i < ARRAY_SIZE(qwlan_hw_list); i++) { |
| 460 | if (scn->target_version == qwlan_hw_list[i].id && |
| 461 | scn->target_revision == qwlan_hw_list[i].subid) { |
| 462 | return qwlan_hw_list[i].name; |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | return "Unknown Device"; |
| 467 | } |
| 468 | |
| 469 | /** |
| 470 | * hif_get_hw_info(): hif_get_hw_info |
| 471 | * @scn: scn |
| 472 | * @version: version |
| 473 | * @revision: revision |
| 474 | * |
| 475 | * Return: n/a |
| 476 | */ |
| 477 | void hif_get_hw_info(void *scn, u32 *version, u32 *revision, |
| 478 | const char **target_name) |
| 479 | { |
| 480 | *version = ((struct ol_softc *)scn)->target_version; |
| 481 | *revision = ((struct ol_softc *)scn)->target_revision; |
| 482 | *target_name = hif_get_hw_name((struct ol_softc *)scn); |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * hif_set_fw_info(): set the target_fw_version |
| 487 | * @scn: scn |
| 488 | * @target_fw_version: target_fw_version |
| 489 | * |
| 490 | * Return: n/a |
| 491 | */ |
| 492 | void hif_set_fw_info(void *scn, uint32_t target_fw_version) |
| 493 | { |
| 494 | ((struct ol_softc *)scn)->target_fw_version = target_fw_version; |
| 495 | } |
| 496 | |
| 497 | /** |
| 498 | * hif_open(): hif_open |
| 499 | * |
| 500 | * Return: scn |
| 501 | */ |
| 502 | CDF_STATUS hif_open(void) |
| 503 | { |
| 504 | struct ol_softc *scn; |
| 505 | v_CONTEXT_t cds_context; |
| 506 | CDF_STATUS status = CDF_STATUS_SUCCESS; |
| 507 | |
| 508 | cds_context = cds_get_global_context(); |
| 509 | status = cds_alloc_context(cds_context, CDF_MODULE_ID_HIF, |
| 510 | (void **)&scn, sizeof(*scn)); |
| 511 | if (status != CDF_STATUS_SUCCESS) { |
| 512 | HIF_ERROR("%s: cannot alloc ol_sc", __func__); |
| 513 | return status; |
| 514 | } |
| 515 | |
| 516 | cdf_mem_zero(scn, sizeof(*scn)); |
| 517 | scn->enableuartprint = 0; |
| 518 | scn->enablefwlog = 0; |
| 519 | scn->max_no_of_peers = 1; |
| 520 | scn->pkt_log_init = false; |
| 521 | cdf_atomic_init(&scn->wow_done); |
| 522 | cdf_atomic_init(&scn->active_tasklet_cnt); |
| 523 | cdf_atomic_init(&scn->link_suspended); |
| 524 | cdf_atomic_init(&scn->tasklet_from_intr); |
| 525 | init_waitqueue_head(&scn->aps_osdev.event_queue); |
| 526 | cdf_spinlock_init(&scn->target_lock); |
| 527 | scn->linkstate_vote = 0; |
| 528 | return status; |
| 529 | } |
| 530 | |
| 531 | /** |
| 532 | * hif_close(): hif_close |
| 533 | * @hif_ctx: hif_ctx |
| 534 | * |
| 535 | * Return: n/a |
| 536 | */ |
| 537 | void hif_close(void *hif_ctx) |
| 538 | { |
| 539 | struct ol_softc *scn = hif_ctx; |
| 540 | |
| 541 | if (scn == NULL) { |
| 542 | HIF_ERROR("%s: ol_softc is NULL", __func__); |
| 543 | return; |
| 544 | } |
| 545 | |
| 546 | if (scn->athdiag_procfs_inited) { |
| 547 | athdiag_procfs_remove(); |
| 548 | scn->athdiag_procfs_inited = false; |
| 549 | } |
| 550 | |
| 551 | if (scn->hif_hdl) { |
| 552 | cdf_mem_free(scn->hif_hdl); |
| 553 | scn->hif_hdl = NULL; |
| 554 | } |
| 555 | hif_bus_close(scn); |
| 556 | cds_free_context(cds_get_global_context(), |
| 557 | CDF_MODULE_ID_HIF, hif_ctx); |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * hif_enable(): hif_enable |
| 562 | * @hif_ctx: hif_ctx |
| 563 | * @dev: dev |
| 564 | * @bdev: bus dev |
| 565 | * @bid: bus ID |
| 566 | * @bus_type: bus type |
| 567 | * @type: enable type |
| 568 | * |
| 569 | * Return: CDF_STATUS |
| 570 | */ |
| 571 | CDF_STATUS hif_enable(void *hif_ctx, struct device *dev, |
| 572 | void *bdev, const hif_bus_id *bid, |
| 573 | enum ath_hal_bus_type bus_type, |
| 574 | enum hif_enable_type type) |
| 575 | { |
| 576 | CDF_STATUS status; |
| 577 | struct ol_softc *scn = hif_ctx; |
| 578 | |
| 579 | if (scn == NULL) { |
| 580 | HIF_ERROR("%s: hif_ctx = NULL", __func__); |
| 581 | return CDF_STATUS_E_NULL_VALUE; |
| 582 | } |
| 583 | |
| 584 | status = hif_bus_open(scn, bus_type); |
| 585 | if (status != CDF_STATUS_SUCCESS) { |
| 586 | HIF_ERROR("%s: hif_bus_open error = %d, bus_type = %d", |
| 587 | __func__, status, bus_type); |
| 588 | return status; |
| 589 | } |
| 590 | |
| 591 | status = hif_enable_bus(scn, dev, bdev, bid, type); |
| 592 | if (status != CDF_STATUS_SUCCESS) { |
| 593 | hif_bus_close(scn); |
| 594 | HIF_ERROR("%s: hif_enable_bus error = %d", |
| 595 | __func__, status); |
| 596 | return status; |
| 597 | } |
| 598 | |
| 599 | if (ADRASTEA_BU) |
| 600 | hif_vote_link_up(); |
| 601 | |
| 602 | if (hif_config_ce(scn)) { |
| 603 | HIF_ERROR("%s: Target probe failed.", __func__); |
| 604 | hif_disable_bus(scn->aps_osdev.bdev); |
| 605 | hif_bus_close(scn); |
| 606 | status = CDF_STATUS_E_FAILURE; |
| 607 | return status; |
| 608 | } |
| 609 | /* |
| 610 | * Flag to avoid potential unallocated memory access from MSI |
| 611 | * interrupt handler which could get scheduled as soon as MSI |
| 612 | * is enabled, i.e to take care of the race due to the order |
| 613 | * in where MSI is enabled before the memory, that will be |
| 614 | * in interrupt handlers, is allocated. |
| 615 | */ |
| 616 | |
| 617 | #ifdef HIF_PCI |
| 618 | status = hif_configure_irq(scn->hif_sc); |
| 619 | if (status < 0) { |
| 620 | HIF_ERROR("%s: ERROR - configure_IRQ_and_CE failed, status = %d", |
| 621 | __func__, status); |
| 622 | return CDF_STATUS_E_FAILURE; |
| 623 | } |
| 624 | #endif |
| 625 | |
| 626 | scn->hif_init_done = true; |
| 627 | |
| 628 | HIF_TRACE("%s: X OK", __func__); |
| 629 | |
| 630 | return CDF_STATUS_SUCCESS; |
| 631 | } |
| 632 | |
| 633 | /** |
| 634 | * hif_pktlogmod_exit(): hif_pktlogmod_exit |
| 635 | * @scn: scn |
| 636 | * |
| 637 | * Return: n/a |
| 638 | */ |
| 639 | #ifndef REMOVE_PKT_LOG |
| 640 | void hif_pktlogmod_exit(void *hif_ctx) |
| 641 | { |
| 642 | struct ol_softc *scn = hif_ctx; |
| 643 | |
| 644 | if (scn && cds_get_conparam() != CDF_FTM_MODE && |
| 645 | !WLAN_IS_EPPING_ENABLED(cds_get_conparam()) && scn->pkt_log_init) { |
| 646 | pktlogmod_exit(scn); |
| 647 | scn->pkt_log_init = false; |
| 648 | } |
| 649 | } |
| 650 | #else |
| 651 | void hif_pktlogmod_exit(void *hif_ctx) |
| 652 | { |
| 653 | } |
| 654 | #endif |
| 655 | |
| 656 | #if ((!defined(QCA_WIFI_3_0_IHELIUM) && !defined(QCA_WIFI_3_0_ADRASTEA)) || defined(CONFIG_ICNSS)) |
| 657 | static inline void cnss_pcie_notify_q6(void) |
| 658 | { |
| 659 | return; |
| 660 | } |
| 661 | #endif |
| 662 | |
| 663 | /** |
| 664 | * hif_wlan_disable(): call the platform driver to disable wlan |
| 665 | * |
| 666 | * This function passes the con_mode to platform driver to disable |
| 667 | * wlan. |
| 668 | * |
| 669 | * Return: void |
| 670 | */ |
| 671 | void hif_wlan_disable(void) |
| 672 | { |
| 673 | enum icnss_driver_mode mode; |
| 674 | uint32_t con_mode = cds_get_conparam(); |
| 675 | |
| 676 | switch (con_mode) { |
| 677 | case CDF_FTM_MODE: |
| 678 | mode = ICNSS_FTM; |
| 679 | break; |
| 680 | case CDF_EPPING_MODE: |
| 681 | mode = ICNSS_EPPING; |
| 682 | break; |
| 683 | default: |
| 684 | mode = ICNSS_MISSION; |
| 685 | break; |
| 686 | } |
| 687 | |
| 688 | icnss_wlan_disable(mode); |
| 689 | } |
| 690 | |
| 691 | void hif_disable(void *hif_ctx, enum hif_disable_type type) |
| 692 | { |
| 693 | struct ol_softc *scn = hif_ctx; |
| 694 | |
| 695 | if (!scn) |
| 696 | return; |
| 697 | |
| 698 | hif_nointrs(scn); |
| 699 | if (scn->hif_init_done == false) |
| 700 | hif_shut_down_device(scn); |
| 701 | else |
| 702 | hif_stop(scn); |
| 703 | |
| 704 | if (ADRASTEA_BU) |
| 705 | hif_vote_link_down(); |
| 706 | |
| 707 | if (scn->aps_osdev.bdev) |
| 708 | hif_disable_bus(scn->aps_osdev.bdev); |
| 709 | |
| 710 | if (IHELIUM_BU) { |
| 711 | cnss_pcie_notify_q6(); |
| 712 | HIF_TRACE("%s: cnss_pcie_notify_q6 done, notice_send= %d", |
| 713 | __func__, scn->notice_send); |
| 714 | } |
| 715 | |
| 716 | hif_wlan_disable(); |
| 717 | |
| 718 | scn->notice_send = false; |
| 719 | |
| 720 | HIF_INFO("%s: X", __func__); |
| 721 | } |
| 722 | |
| 723 | |
| 724 | /** |
| 725 | * hif_crash_shutdown_dump_ce_register(): |
| 726 | * hif_crash_shutdown_dump_ce_register |
| 727 | * @hif_ctx: hif_ctx |
| 728 | * |
| 729 | * Return: n/a |
| 730 | */ |
| 731 | #if defined(TARGET_RAMDUMP_AFTER_KERNEL_PANIC) \ |
| 732 | && defined(HIF_PCI) && defined(DEBUG) |
| 733 | |
| 734 | static void hif_crash_shutdown_dump_ce_register(void *hif_ctx) |
| 735 | { |
| 736 | struct ol_softc *scn = hif_ctx; |
| 737 | |
| 738 | if (hif_check_soc_status(scn) |
| 739 | || dump_ce_register(scn)) { |
| 740 | return; |
| 741 | } |
| 742 | |
| 743 | dump_ce_debug_register(scn); |
| 744 | } |
| 745 | |
| 746 | /** |
| 747 | * hif_crash_shutdown(): hif_crash_shutdown |
| 748 | * |
| 749 | * This function is called by the platform driver to dump CE registers |
| 750 | * |
| 751 | * @hif_ctx: hif_ctx |
| 752 | * |
| 753 | * Return: n/a |
| 754 | */ |
| 755 | void hif_crash_shutdown(void *hif_ctx) |
| 756 | { |
| 757 | struct ol_softc *scn = hif_ctx; |
| 758 | struct HIF_CE_state *hif_state; |
| 759 | |
| 760 | if (!scn) |
| 761 | return; |
| 762 | |
| 763 | hif_state = (struct HIF_CE_state *)scn->hif_hdl; |
| 764 | if (!hif_state) |
| 765 | return; |
| 766 | |
| 767 | |
| 768 | if (OL_TRGET_STATUS_RESET == scn->target_status) { |
| 769 | HIF_INFO_MED("%s: Target is already asserted, ignore!", |
| 770 | __func__); |
| 771 | return; |
| 772 | } |
| 773 | |
| 774 | if (cds_is_load_unload_in_progress()) { |
| 775 | HIF_ERROR("%s: Load/unload is in progress, ignore!", __func__); |
| 776 | return; |
| 777 | } |
| 778 | |
| 779 | cdf_spin_lock_irqsave(&scn->target_lock); |
| 780 | |
| 781 | hif_crash_shutdown_dump_ce_register(hif_ctx); |
| 782 | |
| 783 | if (ol_copy_ramdump(scn)) |
| 784 | goto out; |
| 785 | |
| 786 | HIF_INFO_MED("%s: RAM dump collecting completed!", __func__); |
| 787 | |
| 788 | out: |
| 789 | cdf_spin_unlock_irqrestore(&scn->target_lock); |
| 790 | return; |
| 791 | } |
| 792 | #else |
| 793 | void hif_crash_shutdown(void *hif_ctx) |
| 794 | { |
| 795 | HIF_INFO_MED("%s: Collecting target RAM dump disabled", |
| 796 | __func__); |
| 797 | return; |
| 798 | } |
| 799 | #endif /* TARGET_RAMDUMP_AFTER_KERNEL_PANIC */ |
| 800 | |
| 801 | #ifdef QCA_WIFI_3_0 |
| 802 | /** |
| 803 | * hif_check_fw_reg(): hif_check_fw_reg |
| 804 | * @scn: scn |
| 805 | * @state: |
| 806 | * |
| 807 | * Return: int |
| 808 | */ |
| 809 | int hif_check_fw_reg(struct ol_softc *scn) |
| 810 | { |
| 811 | return 0; |
| 812 | } |
| 813 | #endif |
| 814 | |
| 815 | #ifdef IPA_OFFLOAD |
| 816 | /** |
| 817 | * hif_read_phy_mem_base(): hif_read_phy_mem_base |
| 818 | * @scn: scn |
| 819 | * @phy_mem_base: physical mem base |
| 820 | * |
| 821 | * Return: n/a |
| 822 | */ |
| 823 | void hif_read_phy_mem_base(struct ol_softc *scn, cdf_dma_addr_t *phy_mem_base) |
| 824 | { |
| 825 | *phy_mem_base = scn->mem_pa; |
| 826 | } |
| 827 | #endif /* IPA_OFFLOAD */ |
| 828 | |
| 829 | /** |
| 830 | * hif_get_device_type(): hif_get_device_type |
| 831 | * @device_id: device_id |
| 832 | * @revision_id: revision_id |
| 833 | * @hif_type: returned hif_type |
| 834 | * @target_type: returned target_type |
| 835 | * |
| 836 | * Return: int |
| 837 | */ |
| 838 | int hif_get_device_type(uint32_t device_id, |
| 839 | uint32_t revision_id, |
| 840 | uint32_t *hif_type, uint32_t *target_type) |
| 841 | { |
| 842 | int ret = 0; |
| 843 | |
| 844 | switch (device_id) { |
| 845 | #ifdef QCA_WIFI_3_0_ADRASTEA |
| 846 | case ADRASTEA_DEVICE_ID: |
| 847 | case ADRASTEA_DEVICE_ID_P2_E12: |
| 848 | |
| 849 | *hif_type = HIF_TYPE_ADRASTEA; |
| 850 | *target_type = TARGET_TYPE_ADRASTEA; |
| 851 | break; |
| 852 | #else |
| 853 | case QCA6180_DEVICE_ID: |
| 854 | *hif_type = HIF_TYPE_QCA6180; |
| 855 | *target_type = TARGET_TYPE_QCA6180; |
| 856 | break; |
| 857 | #endif |
| 858 | |
| 859 | case AR9888_DEVICE_ID: |
| 860 | *hif_type = HIF_TYPE_AR9888; |
| 861 | *target_type = TARGET_TYPE_AR9888; |
| 862 | break; |
| 863 | |
| 864 | case AR6320_DEVICE_ID: |
| 865 | switch (revision_id) { |
| 866 | case AR6320_FW_1_1: |
| 867 | case AR6320_FW_1_3: |
| 868 | *hif_type = HIF_TYPE_AR6320; |
| 869 | *target_type = TARGET_TYPE_AR6320; |
| 870 | break; |
| 871 | |
| 872 | case AR6320_FW_2_0: |
| 873 | case AR6320_FW_3_0: |
| 874 | case AR6320_FW_3_2: |
| 875 | *hif_type = HIF_TYPE_AR6320V2; |
| 876 | *target_type = TARGET_TYPE_AR6320V2; |
| 877 | break; |
| 878 | |
| 879 | default: |
| 880 | HIF_ERROR("%s: error - dev_id = 0x%x, rev_id = 0x%x", |
| 881 | __func__, device_id, revision_id); |
| 882 | ret = -ENODEV; |
| 883 | goto end; |
| 884 | } |
| 885 | break; |
| 886 | |
| 887 | default: |
| 888 | HIF_ERROR("%s: Unsupported device ID!", __func__); |
| 889 | ret = -ENODEV; |
| 890 | break; |
| 891 | } |
| 892 | end: |
| 893 | return ret; |
| 894 | } |