1 /* 2 * Copyright (c) 2013-2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /** 21 * DOC: if_ahb.c 22 * 23 * c file for ahb specific implementations. 24 */ 25 26 #include "hif.h" 27 #include "target_type.h" 28 #include "hif_main.h" 29 #include "hif_debug.h" 30 #include "hif_io32.h" 31 #include "ce_main.h" 32 #include "ce_api.h" 33 #include "ce_tasklet.h" 34 #include "if_ahb.h" 35 #include "if_pci.h" 36 #include "ahb_api.h" 37 #include "pci_api.h" 38 #include "hif_napi.h" 39 #include "qal_vbus_dev.h" 40 #include "qdf_irq.h" 41 42 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0) 43 #define IRQF_DISABLED 0x00000020 44 #endif 45 46 #define HIF_IC_CE0_IRQ_OFFSET 4 47 #define HIF_IC_MAX_IRQ 58 48 49 static uint16_t ic_irqnum[HIF_IC_MAX_IRQ]; 50 /* integrated chip irq names */ 51 const char *ic_irqname[HIF_IC_MAX_IRQ] = { 52 "misc-pulse1", 53 "misc-latch", 54 "sw-exception", 55 "watchdog", 56 "ce0", 57 "ce1", 58 "ce2", 59 "ce3", 60 "ce4", 61 "ce5", 62 "ce6", 63 "ce7", 64 "ce8", 65 "ce9", 66 "ce10", 67 "ce11", 68 "host2wbm-desc-feed", 69 "host2reo-re-injection", 70 "host2reo-command", 71 "host2rxdma-monitor-ring3", 72 "host2rxdma-monitor-ring2", 73 "host2rxdma-monitor-ring1", 74 "reo2ost-exception", 75 "wbm2host-rx-release", 76 "reo2host-status", 77 "reo2host-destination-ring4", 78 "reo2host-destination-ring3", 79 "reo2host-destination-ring2", 80 "reo2host-destination-ring1", 81 "rxdma2host-monitor-destination-mac3", 82 "rxdma2host-monitor-destination-mac2", 83 "rxdma2host-monitor-destination-mac1", 84 "ppdu-end-interrupts-mac3", 85 "ppdu-end-interrupts-mac2", 86 "ppdu-end-interrupts-mac1", 87 "rxdma2host-monitor-status-ring-mac3", 88 "rxdma2host-monitor-status-ring-mac2", 89 "rxdma2host-monitor-status-ring-mac1", 90 "host2rxdma-host-buf-ring-mac3", 91 "host2rxdma-host-buf-ring-mac2", 92 "host2rxdma-host-buf-ring-mac1", 93 "rxdma2host-destination-ring-mac3", 94 "rxdma2host-destination-ring-mac2", 95 "rxdma2host-destination-ring-mac1", 96 "host2tcl-input-ring4", 97 "host2tcl-input-ring3", 98 "host2tcl-input-ring2", 99 "host2tcl-input-ring1", 100 "wbm2host-tx-completions-ring4", 101 "wbm2host-tx-completions-ring3", 102 "wbm2host-tx-completions-ring2", 103 "wbm2host-tx-completions-ring1", 104 "tcl2host-status-ring", 105 "txmon2host-monitor-destination-mac3", 106 "txmon2host-monitor-destination-mac2", 107 "txmon2host-monitor-destination-mac1", 108 "host2tx-monitor-ring1", 109 }; 110 111 /** 112 * hif_ahb_get_irq_name() - get irqname 113 * @irq_no: irq number 114 * 115 * This function gives irqnumber to irqname 116 * mapping. 117 * 118 * Return: irq name 119 */ hif_ahb_get_irq_name(int irq_no)120 const char *hif_ahb_get_irq_name(int irq_no) 121 { 122 return ic_irqname[irq_no]; 123 } 124 125 /** 126 * hif_ahb_disable_isr() - disable isr 127 * @scn: struct hif_softc 128 * 129 * This function disables isr and kills tasklets 130 * 131 * Return: void 132 */ hif_ahb_disable_isr(struct hif_softc * scn)133 void hif_ahb_disable_isr(struct hif_softc *scn) 134 { 135 struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(scn); 136 hif_exec_kill(&scn->osc); 137 hif_nointrs(scn); 138 ce_tasklet_kill(scn); 139 tasklet_kill(&sc->intr_tq); 140 qdf_atomic_set(&scn->active_tasklet_cnt, 0); 141 qdf_atomic_set(&scn->active_grp_tasklet_cnt, 0); 142 } 143 144 /** 145 * hif_ahb_dump_registers() - dump bus debug registers 146 * @hif_ctx: struct hif_opaque_softc 147 * 148 * This function dumps hif bus debug registers 149 * 150 * Return: 0 for success or error code 151 */ hif_ahb_dump_registers(struct hif_softc * hif_ctx)152 int hif_ahb_dump_registers(struct hif_softc *hif_ctx) 153 { 154 int status; 155 struct hif_softc *scn = HIF_GET_SOFTC(hif_ctx); 156 157 status = hif_dump_ce_registers(scn); 158 if (status) 159 hif_err("Dump CE Registers Failed status %d", status); 160 161 return 0; 162 } 163 164 /** 165 * hif_ahb_close() - hif_bus_close 166 * @scn: pointer to the hif context. 167 * 168 * This is a callback function for hif_bus_close. 169 * 170 * 171 * Return: n/a 172 */ hif_ahb_close(struct hif_softc * scn)173 void hif_ahb_close(struct hif_softc *scn) 174 { 175 hif_ce_close(scn); 176 } 177 178 /** 179 * hif_ahb_open() - hif_ahb open 180 * @hif_ctx: hif context 181 * @bus_type: bus type 182 * 183 * This is a callback function for hif_bus_open. 184 * 185 * Return: QDF_STATUS 186 */ hif_ahb_open(struct hif_softc * hif_ctx,enum qdf_bus_type bus_type)187 QDF_STATUS hif_ahb_open(struct hif_softc *hif_ctx, enum qdf_bus_type bus_type) 188 { 189 190 struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(hif_ctx); 191 192 qdf_spinlock_create(&sc->irq_lock); 193 return hif_ce_open(hif_ctx); 194 } 195 196 /** 197 * hif_ahb_bus_configure() - Configure the bus 198 * @scn: pointer to the hif context. 199 * 200 * This function configure the ahb bus 201 * 202 * Return: 0 for success. nonzero for failure. 203 */ hif_ahb_bus_configure(struct hif_softc * scn)204 int hif_ahb_bus_configure(struct hif_softc *scn) 205 { 206 return hif_pci_bus_configure(scn); 207 } 208 hif_ahb_get_bar_addr_pld(struct hif_pci_softc * sc,struct device * dev)209 static void hif_ahb_get_bar_addr_pld(struct hif_pci_softc *sc, 210 struct device *dev) 211 { 212 struct pld_soc_info info; 213 int ret = 0; 214 215 ret = pld_get_soc_info(dev, &info); 216 sc->mem = info.v_addr; 217 pld_set_bar_addr(dev, info.v_addr); 218 sc->ce_sc.ol_sc.mem = info.v_addr; 219 sc->ce_sc.ol_sc.mem_pa = info.p_addr; 220 } 221 hif_ahb_get_soc_cmem_info_pld(struct hif_pci_softc * sc,struct device * dev)222 static void hif_ahb_get_soc_cmem_info_pld(struct hif_pci_softc *sc, 223 struct device *dev) 224 { 225 struct pld_soc_info info; 226 int ret = 0; 227 struct hif_softc *scn = HIF_GET_SOFTC(sc); 228 229 ret = pld_get_soc_info(dev, &info); 230 /* dev_mem_info[0] is for CMEM */ 231 scn->cmem_start = info.dev_mem_info[0].start; 232 scn->cmem_size = info.dev_mem_info[0].size; 233 } 234 hif_ahb_configure_irq_by_ceid(struct hif_softc * scn,int ce_id)235 int hif_ahb_configure_irq_by_ceid(struct hif_softc *scn, int ce_id) 236 { 237 int ret = 0; 238 struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(scn); 239 struct platform_device *pdev = (struct platform_device *)sc->pdev; 240 struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); 241 int irq = 0; 242 243 if (ce_id >= CE_COUNT_MAX) 244 return -EINVAL; 245 246 ret = pfrm_get_irq(&pdev->dev, (struct qdf_pfm_hndl *)pdev, 247 ic_irqname[HIF_IC_CE0_IRQ_OFFSET + ce_id], 248 HIF_IC_CE0_IRQ_OFFSET + ce_id, &irq); 249 if (ret) { 250 dev_err(&pdev->dev, "get irq failed\n"); 251 ret = -EFAULT; 252 goto end; 253 } 254 255 ic_irqnum[HIF_IC_CE0_IRQ_OFFSET + ce_id] = irq; 256 ret = pfrm_request_irq(&pdev->dev, irq, 257 hif_ahb_interrupt_handler, 258 IRQF_TRIGGER_RISING, 259 ic_irqname[HIF_IC_CE0_IRQ_OFFSET + ce_id], 260 &hif_state->tasklets[ce_id]); 261 if (ret) { 262 dev_err(&pdev->dev, "ath_request_irq failed\n"); 263 ret = -EFAULT; 264 goto end; 265 } 266 hif_ahb_irq_enable(scn, ce_id); 267 268 end: 269 return ret; 270 } 271 hif_ahb_configure_irq(struct hif_pci_softc * sc)272 int hif_ahb_configure_irq(struct hif_pci_softc *sc) 273 { 274 int ret = 0; 275 struct hif_softc *scn = HIF_GET_SOFTC(sc); 276 struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); 277 struct CE_attr *host_ce_conf = hif_state->host_ce_config; 278 int i; 279 280 /* configure per CE interrupts */ 281 for (i = 0; i < scn->ce_count; i++) { 282 if (host_ce_conf[i].flags & CE_ATTR_DISABLE_INTR) 283 continue; 284 285 if (host_ce_conf[i].flags & CE_ATTR_INIT_ON_DEMAND) 286 continue; 287 288 ret = hif_ahb_configure_irq_by_ceid(scn, i); 289 if (ret) 290 goto end; 291 } 292 293 end: 294 return ret; 295 } 296 hif_ahb_configure_grp_irq(struct hif_softc * scn,struct hif_exec_context * hif_ext_group)297 int hif_ahb_configure_grp_irq(struct hif_softc *scn, 298 struct hif_exec_context *hif_ext_group) 299 { 300 int ret = 0; 301 struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(scn); 302 struct platform_device *pdev = (struct platform_device *)sc->pdev; 303 int irq = 0; 304 int j; 305 306 /* configure external interrupts */ 307 hif_ext_group->irq_enable = &hif_ahb_exec_grp_irq_enable; 308 hif_ext_group->irq_disable = &hif_ahb_exec_grp_irq_disable; 309 hif_ext_group->irq_name = &hif_ahb_get_irq_name; 310 hif_ext_group->work_complete = &hif_dummy_grp_done; 311 312 for (j = 0; j < hif_ext_group->numirq; j++) { 313 ret = pfrm_get_irq(&pdev->dev, (struct qdf_pfm_hndl *)pdev, 314 ic_irqname[hif_ext_group->irq[j]], 315 hif_ext_group->irq[j], &irq); 316 if (ret) { 317 dev_err(&pdev->dev, "get irq failed\n"); 318 ret = -EFAULT; 319 goto end; 320 } 321 ic_irqnum[hif_ext_group->irq[j]] = irq; 322 hif_ext_group->os_irq[j] = irq; 323 } 324 325 for (j = 0; j < hif_ext_group->numirq; j++) { 326 irq = hif_ext_group->os_irq[j]; 327 328 qdf_spin_lock_irqsave(&hif_ext_group->irq_lock); 329 qdf_dev_set_irq_status_flags(irq, QDF_IRQ_DISABLE_UNLAZY); 330 qdf_spin_unlock_irqrestore(&hif_ext_group->irq_lock); 331 332 ret = pfrm_request_irq(scn->qdf_dev->dev, 333 irq, hif_ext_group_interrupt_handler, 334 IRQF_TRIGGER_RISING | IRQF_SHARED, 335 ic_irqname[hif_ext_group->irq[j]], 336 hif_ext_group); 337 if (ret) { 338 dev_err(&pdev->dev, "ath_request_irq failed\n"); 339 ret = -EFAULT; 340 goto end; 341 } 342 } 343 344 qdf_spin_lock_irqsave(&hif_ext_group->irq_lock); 345 hif_ext_group->irq_requested = true; 346 qdf_spin_unlock_irqrestore(&hif_ext_group->irq_lock); 347 end: 348 return ret; 349 } 350 hif_ahb_deconfigure_grp_irq(struct hif_softc * scn)351 void hif_ahb_deconfigure_grp_irq(struct hif_softc *scn) 352 { 353 struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); 354 struct hif_exec_context *hif_ext_group; 355 int i, j; 356 int irq = 0; 357 358 /* configure external interrupts */ 359 for (i = 0; i < hif_state->hif_num_extgroup; i++) { 360 hif_ext_group = hif_state->hif_ext_group[i]; 361 if (hif_ext_group->irq_requested == true) { 362 qdf_spin_lock_irqsave(&hif_ext_group->irq_lock); 363 hif_ext_group->irq_requested = false; 364 for (j = 0; j < hif_ext_group->numirq; j++) { 365 irq = hif_ext_group->os_irq[j]; 366 hif_ext_group->irq_enabled = false; 367 qdf_dev_clear_irq_status_flags( 368 irq, 369 QDF_IRQ_DISABLE_UNLAZY); 370 } 371 qdf_spin_unlock_irqrestore(&hif_ext_group->irq_lock); 372 373 /* Avoid holding the irq_lock while freeing the irq 374 * as the same lock is being held by the irq handler 375 * while disabling the irq. This causes a deadlock 376 * between free_irq and irq_handler. 377 */ 378 for (j = 0; j < hif_ext_group->numirq; j++) { 379 irq = hif_ext_group->os_irq[j]; 380 pfrm_free_irq(scn->qdf_dev->dev, 381 irq, hif_ext_group); 382 } 383 } 384 } 385 } 386 hif_ahb_interrupt_handler(int irq,void * context)387 irqreturn_t hif_ahb_interrupt_handler(int irq, void *context) 388 { 389 struct ce_tasklet_entry *tasklet_entry = context; 390 return ce_dispatch_interrupt(tasklet_entry->ce_id, tasklet_entry); 391 } 392 393 /** 394 * hif_ahb_disable_bus() - Disable the bus 395 * @scn : pointer to the hif context 396 * 397 * This function disables the bus and helds the target in reset state 398 * 399 * Return: none 400 */ hif_ahb_disable_bus(struct hif_softc * scn)401 void hif_ahb_disable_bus(struct hif_softc *scn) 402 { 403 struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(scn); 404 void __iomem *mem; 405 struct platform_device *pdev = (struct platform_device *)sc->pdev; 406 struct resource *memres = NULL; 407 int mem_pa_size = 0; 408 struct hif_target_info *tgt_info = NULL; 409 struct qdf_vbus_resource *vmres = NULL; 410 QDF_STATUS status; 411 412 tgt_info = &scn->target_info; 413 /*Disable WIFI clock input*/ 414 if (sc->mem) { 415 status = pfrm_platform_get_resource( 416 scn->qdf_dev->dev, 417 (struct qdf_pfm_hndl *)pdev, &vmres, 418 IORESOURCE_MEM, 0); 419 if (QDF_IS_STATUS_ERROR(status)) { 420 hif_info("Failed to get IORESOURCE_MEM"); 421 return; 422 } 423 memres = (struct resource *)vmres; 424 if (memres) 425 mem_pa_size = memres->end - memres->start + 1; 426 427 if (tgt_info->target_type == TARGET_TYPE_QCA5018 || 428 tgt_info->target_type == TARGET_TYPE_QCA5332) { 429 iounmap(sc->mem_ce); 430 sc->mem_ce = NULL; 431 scn->mem_ce = NULL; 432 } 433 if (sc->mem_pmm_base) { 434 iounmap(sc->mem_pmm_base); 435 sc->mem_pmm_base = NULL; 436 scn->mem_pmm_base = NULL; 437 } 438 if (sc->mem_cmem) { 439 iounmap(sc->mem_cmem); 440 sc->mem_cmem = NULL; 441 scn->mem_cmem = NULL; 442 } 443 mem = (void __iomem *)sc->mem; 444 if (mem) { 445 pfrm_devm_iounmap(&pdev->dev, mem); 446 pfrm_devm_release_mem_region(&pdev->dev, scn->mem_pa, 447 mem_pa_size); 448 sc->mem = NULL; 449 pld_set_bar_addr(&pdev->dev, NULL); 450 } 451 } 452 scn->mem = NULL; 453 } 454 455 /** 456 * hif_ahb_enable_bus() - Enable the bus 457 * @ol_sc: HIF context 458 * @dev: dev 459 * @bdev: bus dev 460 * @bid: bus id 461 * @type: bus type 462 * 463 * This function enables the radio bus by enabling necessary 464 * clocks and waits for the target to get ready to proceed further 465 * 466 * Return: QDF_STATUS 467 */ hif_ahb_enable_bus(struct hif_softc * ol_sc,struct device * dev,void * bdev,const struct hif_bus_id * bid,enum hif_enable_type type)468 QDF_STATUS hif_ahb_enable_bus(struct hif_softc *ol_sc, 469 struct device *dev, void *bdev, 470 const struct hif_bus_id *bid, 471 enum hif_enable_type type) 472 { 473 int ret = 0; 474 int hif_type; 475 int target_type; 476 const struct platform_device_id *id = (struct platform_device_id *)bid; 477 struct platform_device *pdev = bdev; 478 struct hif_target_info *tgt_info = NULL; 479 struct resource *memres = NULL; 480 void __iomem *mem = NULL; 481 uint32_t revision_id = 0; 482 struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(ol_sc); 483 QDF_STATUS status; 484 struct qdf_vbus_resource *vmres = NULL; 485 486 sc->pdev = (struct pci_dev *)pdev; 487 sc->dev = &pdev->dev; 488 sc->devid = id->driver_data; 489 490 ret = hif_get_device_type(id->driver_data, revision_id, 491 &hif_type, &target_type); 492 if (ret < 0) { 493 hif_err("Invalid device ret %d id %d revision_id %d", 494 ret, (int)id->driver_data, revision_id); 495 return QDF_STATUS_E_FAILURE; 496 } 497 498 if (target_type == TARGET_TYPE_QCN6122 || 499 target_type == TARGET_TYPE_QCN9160 || 500 target_type == TARGET_TYPE_QCN6432) { 501 hif_ahb_get_bar_addr_pld(sc, dev); 502 } 503 504 /* 11BE SoC chipsets Need to call this function to get cmem addr */ 505 if (target_type == TARGET_TYPE_QCA5332 || 506 target_type == TARGET_TYPE_QCN6432) 507 hif_ahb_get_soc_cmem_info_pld(sc, dev); 508 509 if (target_type == TARGET_TYPE_QCN6122 || 510 target_type == TARGET_TYPE_QCN9160 || 511 target_type == TARGET_TYPE_QCN6432) { 512 hif_update_irq_ops_with_pci(ol_sc); 513 } else { 514 status = pfrm_platform_get_resource(&pdev->dev, 515 (struct qdf_pfm_hndl *)pdev, 516 &vmres, 517 IORESOURCE_MEM, 0); 518 if (QDF_IS_STATUS_ERROR(status)) { 519 hif_err("Failed to get IORESOURCE_MEM"); 520 return status; 521 } 522 memres = (struct resource *)vmres; 523 if (!memres) { 524 hif_err("Failed to get IORESOURCE_MEM"); 525 return QDF_STATUS_E_IO; 526 } 527 528 /* Arrange for access to Target SoC registers. */ 529 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0) 530 status = pfrm_devm_ioremap_resource( 531 dev, 532 (struct qdf_vbus_resource *)memres, 533 &mem); 534 #else 535 status = pfrm_devm_request_and_ioremap( 536 dev, 537 (struct qdf_vbus_resource *)memres, 538 &mem); 539 #endif 540 if (QDF_IS_STATUS_ERROR(status)) { 541 hif_err("ath: ioremap error"); 542 ret = PTR_ERR(mem); 543 goto err_cleanup1; 544 } 545 546 sc->mem = mem; 547 pld_set_bar_addr(dev, mem); 548 ol_sc->mem = mem; 549 ol_sc->mem_pa = memres->start; 550 } 551 552 ret = pfrm_dma_set_mask(dev, 32); 553 if (ret) { 554 hif_err("ath: 32-bit DMA not available"); 555 status = QDF_STATUS_E_IO; 556 goto err_cleanup1; 557 } 558 559 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0) 560 ret = pfrm_dma_set_mask_and_coherent(dev, 32); 561 #else 562 ret = pfrm_dma_set_coherent_mask(dev, 32); 563 #endif 564 if (ret) { 565 hif_err("Failed to set dma mask error = %d", ret); 566 return QDF_STATUS_E_IO; 567 } 568 569 tgt_info = hif_get_target_info_handle((struct hif_opaque_softc *)ol_sc); 570 571 tgt_info->target_type = target_type; 572 hif_register_tbl_attach(ol_sc, hif_type); 573 hif_target_register_tbl_attach(ol_sc, target_type); 574 /* 575 * In QCA5018 CE region moved to SOC outside WCSS block. 576 * Allocate separate I/O remap to access CE registers. 577 */ 578 if (tgt_info->target_type == TARGET_TYPE_QCA5018 || 579 tgt_info->target_type == TARGET_TYPE_QCA5332) { 580 struct hif_softc *scn = HIF_GET_SOFTC(sc); 581 582 sc->mem_ce = qdf_ioremap(HOST_CE_ADDRESS, HOST_CE_SIZE); 583 if (IS_ERR(sc->mem_ce)) { 584 hif_err("CE: ioremap failed"); 585 return QDF_STATUS_E_IO; 586 } 587 ol_sc->mem_ce = sc->mem_ce; 588 pld_set_bar_addr(dev, sc->mem_ce); 589 } 590 591 if (tgt_info->target_type == TARGET_TYPE_QCA5332) { 592 struct hif_softc *scn = HIF_GET_SOFTC(sc); 593 594 /* 595 * In QCA5332 CMEM region is outside WCSS block. 596 * Allocate separate I/O remap to access CMEM address. 597 */ 598 sc->mem_cmem = qdf_ioremap(HOST_CMEM_ADDRESS, HOST_CMEM_SIZE); 599 if (IS_ERR(sc->mem_cmem)) { 600 hif_err("CE: ioremap failed"); 601 return QDF_STATUS_E_IO; 602 } 603 ol_sc->mem_cmem = sc->mem_cmem; 604 605 /* 606 * PMM SCRATCH Register for QCA5332 607 */ 608 sc->mem_pmm_base = qdf_ioremap(PMM_SCRATCH_BASE, 609 PMM_SCRATCH_SIZE); 610 if (IS_ERR(sc->mem_pmm_base)) { 611 hif_err("CE: ioremap failed"); 612 return QDF_STATUS_E_IO; 613 } 614 ol_sc->mem_pmm_base = sc->mem_pmm_base; 615 } 616 617 hif_info("X - hif_type = 0x%x, target_type = 0x%x", 618 hif_type, target_type); 619 620 return QDF_STATUS_SUCCESS; 621 err_cleanup1: 622 return status; 623 } 624 625 /** 626 * hif_ahb_nointrs() - disable IRQ 627 * 628 * @scn: struct hif_softc 629 * 630 * This function stops interrupt(s) 631 * 632 * Return: none 633 */ hif_ahb_nointrs(struct hif_softc * scn)634 void hif_ahb_nointrs(struct hif_softc *scn) 635 { 636 int i; 637 struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(scn); 638 struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); 639 struct CE_attr *host_ce_conf = hif_state->host_ce_config; 640 641 scn->free_irq_done = true; 642 ce_unregister_irq(hif_state, CE_ALL_BITMAP); 643 644 if (scn->request_irq_done == false) 645 return; 646 647 if (sc->num_msi_intrs > 0) { 648 /* MSI interrupt(s) */ 649 for (i = 0; i < sc->num_msi_intrs; i++) { 650 pfrm_free_irq(scn->qdf_dev->dev, sc->irq + i, sc); 651 } 652 sc->num_msi_intrs = 0; 653 } else { 654 if (!scn->per_ce_irq) { 655 pfrm_free_irq(scn->qdf_dev->dev, sc->irq, sc); 656 } else { 657 for (i = 0; i < scn->ce_count; i++) { 658 if (host_ce_conf[i].flags 659 & CE_ATTR_DISABLE_INTR) 660 continue; 661 if (!hif_state->tasklets[i].inited) 662 continue; 663 pfrm_free_irq( 664 scn->qdf_dev->dev, 665 ic_irqnum[HIF_IC_CE0_IRQ_OFFSET + i], 666 &hif_state->tasklets[i]); 667 } 668 hif_ahb_deconfigure_grp_irq(scn); 669 } 670 } 671 scn->request_irq_done = false; 672 673 } 674 675 /** 676 * hif_ahb_irq_enable() - enable copy engine IRQ 677 * @scn: struct hif_softc 678 * @ce_id: ce_id 679 * 680 * This function enables the interrupt for the radio. 681 * 682 * Return: N/A 683 */ hif_ahb_irq_enable(struct hif_softc * scn,int ce_id)684 void hif_ahb_irq_enable(struct hif_softc *scn, int ce_id) 685 { 686 uint32_t regval; 687 uint32_t reg_offset = 0; 688 struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); 689 struct CE_pipe_config *target_ce_conf = &hif_state->target_ce_config[ce_id]; 690 struct hif_target_info *tgt_info = &scn->target_info; 691 void *mem = scn->mem_ce ? scn->mem_ce : scn->mem; 692 693 if (scn->per_ce_irq) { 694 if (target_ce_conf->pipedir & PIPEDIR_OUT) { 695 reg_offset = HOST_IE_ADDRESS; 696 qdf_spin_lock_irqsave(&hif_state->irq_reg_lock); 697 regval = hif_read32_mb(scn, mem + reg_offset); 698 regval |= HOST_IE_REG1_CE_BIT(ce_id); 699 hif_write32_mb(scn, mem + reg_offset, regval); 700 qdf_spin_unlock_irqrestore(&hif_state->irq_reg_lock); 701 } 702 if (target_ce_conf->pipedir & PIPEDIR_IN) { 703 reg_offset = HOST_IE_ADDRESS_2; 704 qdf_spin_lock_irqsave(&hif_state->irq_reg_lock); 705 regval = hif_read32_mb(scn, mem + reg_offset); 706 regval |= HOST_IE_REG2_CE_BIT(ce_id); 707 hif_write32_mb(scn, mem + reg_offset, regval); 708 if (tgt_info->target_type == TARGET_TYPE_QCA8074 || 709 tgt_info->target_type == TARGET_TYPE_QCA8074V2 || 710 tgt_info->target_type == TARGET_TYPE_QCA9574 || 711 tgt_info->target_type == TARGET_TYPE_QCA5332 || 712 tgt_info->target_type == TARGET_TYPE_QCA5018 || 713 tgt_info->target_type == TARGET_TYPE_QCA6018) { 714 /* Enable destination ring interrupts for 715 * 8074, 8074V2, 6018 and 50xx 716 */ 717 regval = hif_read32_mb(scn, mem + 718 HOST_IE_ADDRESS_3); 719 regval |= HOST_IE_REG3_CE_BIT(ce_id); 720 721 hif_write32_mb(scn, mem + 722 HOST_IE_ADDRESS_3, regval); 723 } 724 qdf_spin_unlock_irqrestore(&hif_state->irq_reg_lock); 725 } 726 } else { 727 hif_pci_irq_enable(scn, ce_id); 728 } 729 } 730 731 /** 732 * hif_ahb_irq_disable() - disable copy engine IRQ 733 * @scn: struct hif_softc 734 * @ce_id: ce_id 735 * 736 * Return: N/A 737 */ hif_ahb_irq_disable(struct hif_softc * scn,int ce_id)738 void hif_ahb_irq_disable(struct hif_softc *scn, int ce_id) 739 { 740 uint32_t regval; 741 uint32_t reg_offset = 0; 742 struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); 743 struct CE_pipe_config *target_ce_conf = &hif_state->target_ce_config[ce_id]; 744 struct hif_target_info *tgt_info = &scn->target_info; 745 void *mem = scn->mem_ce ? scn->mem_ce : scn->mem; 746 747 if (scn->per_ce_irq) { 748 if (target_ce_conf->pipedir & PIPEDIR_OUT) { 749 reg_offset = HOST_IE_ADDRESS; 750 qdf_spin_lock_irqsave(&hif_state->irq_reg_lock); 751 regval = hif_read32_mb(scn, mem + reg_offset); 752 regval &= ~HOST_IE_REG1_CE_BIT(ce_id); 753 hif_write32_mb(scn, mem + reg_offset, regval); 754 qdf_spin_unlock_irqrestore(&hif_state->irq_reg_lock); 755 } 756 if (target_ce_conf->pipedir & PIPEDIR_IN) { 757 reg_offset = HOST_IE_ADDRESS_2; 758 qdf_spin_lock_irqsave(&hif_state->irq_reg_lock); 759 regval = hif_read32_mb(scn, mem + reg_offset); 760 regval &= ~HOST_IE_REG2_CE_BIT(ce_id); 761 hif_write32_mb(scn, mem + reg_offset, regval); 762 if (tgt_info->target_type == TARGET_TYPE_QCA8074 || 763 tgt_info->target_type == TARGET_TYPE_QCA8074V2 || 764 tgt_info->target_type == TARGET_TYPE_QCA9574 || 765 tgt_info->target_type == TARGET_TYPE_QCA5332 || 766 tgt_info->target_type == TARGET_TYPE_QCA5018 || 767 tgt_info->target_type == TARGET_TYPE_QCA6018) { 768 /* Disable destination ring interrupts for 769 * 8074, 8074V2, 6018 and 50xx 770 */ 771 regval = hif_read32_mb(scn, mem + 772 HOST_IE_ADDRESS_3); 773 regval &= ~HOST_IE_REG3_CE_BIT(ce_id); 774 775 hif_write32_mb(scn, mem + 776 HOST_IE_ADDRESS_3, regval); 777 } 778 qdf_spin_unlock_irqrestore(&hif_state->irq_reg_lock); 779 } 780 } 781 } 782 hif_ahb_exec_grp_irq_disable(struct hif_exec_context * hif_ext_group)783 void hif_ahb_exec_grp_irq_disable(struct hif_exec_context *hif_ext_group) 784 { 785 int i; 786 787 qdf_spin_lock_irqsave(&hif_ext_group->irq_lock); 788 if (hif_ext_group->irq_enabled) { 789 for (i = 0; i < hif_ext_group->numirq; i++) { 790 disable_irq_nosync(hif_ext_group->os_irq[i]); 791 } 792 hif_ext_group->irq_enabled = false; 793 } 794 qdf_spin_unlock_irqrestore(&hif_ext_group->irq_lock); 795 } 796 hif_ahb_exec_grp_irq_enable(struct hif_exec_context * hif_ext_group)797 void hif_ahb_exec_grp_irq_enable(struct hif_exec_context *hif_ext_group) 798 { 799 int i; 800 801 qdf_spin_lock_irqsave(&hif_ext_group->irq_lock); 802 if (hif_ext_group->irq_requested && !hif_ext_group->irq_enabled) { 803 for (i = 0; i < hif_ext_group->numirq; i++) { 804 enable_irq(hif_ext_group->os_irq[i]); 805 } 806 hif_ext_group->irq_enabled = true; 807 } 808 qdf_spin_unlock_irqrestore(&hif_ext_group->irq_lock); 809 } 810 811 /** 812 * hif_ahb_needs_bmi() - return true if the soc needs bmi through the driver 813 * @scn: hif context 814 * 815 * Return: true if soc needs driver bmi otherwise false 816 */ hif_ahb_needs_bmi(struct hif_softc * scn)817 bool hif_ahb_needs_bmi(struct hif_softc *scn) 818 { 819 return !ce_srng_based(scn); 820 } 821 822 /** 823 * hif_display_ahb_irq_regs() - prints the host interrupt enable (IE) regs 824 * @scn: hif context 825 * 826 * Return: None 827 */ 828 hif_display_ahb_irq_regs(struct hif_softc * scn)829 void hif_display_ahb_irq_regs(struct hif_softc *scn) 830 { 831 uint32_t regval; 832 void *mem = scn->mem_ce ? scn->mem_ce : scn->mem; 833 struct hif_target_info *tgt_info = &scn->target_info; 834 835 if (tgt_info->target_type == TARGET_TYPE_QCN6122 || 836 tgt_info->target_type == TARGET_TYPE_QCN9160 || 837 tgt_info->target_type == TARGET_TYPE_QCN6432) { 838 return; 839 } 840 if (scn->per_ce_irq) { 841 regval = hif_read32_mb(scn, mem + HOST_IE_ADDRESS); 842 hif_nofl_err("IRQ enable register value 0x%08x", regval); 843 844 regval = hif_read32_mb(scn, mem + HOST_IE_ADDRESS_2); 845 hif_nofl_err("IRQ enable register 2 value 0x%08x", regval); 846 847 if (tgt_info->target_type == TARGET_TYPE_QCA8074 || 848 tgt_info->target_type == TARGET_TYPE_QCA8074V2 || 849 tgt_info->target_type == TARGET_TYPE_QCA9574 || 850 tgt_info->target_type == TARGET_TYPE_QCA5332 || 851 tgt_info->target_type == TARGET_TYPE_QCA5018 || 852 tgt_info->target_type == TARGET_TYPE_QCA6018) { 853 regval = hif_read32_mb(scn, mem + 854 HOST_IE_ADDRESS_3); 855 hif_nofl_err("IRQ enable register 3 value 0x%08x", 856 regval); 857 } 858 } 859 } 860 hif_ahb_display_stats(struct hif_softc * scn)861 void hif_ahb_display_stats(struct hif_softc *scn) 862 { 863 if (!scn) { 864 hif_err("hif_scn null"); 865 return; 866 } 867 hif_display_ahb_irq_regs(scn); 868 hif_display_ce_stats(scn); 869 } 870 hif_ahb_clear_stats(struct hif_softc * scn)871 void hif_ahb_clear_stats(struct hif_softc *scn) 872 { 873 struct HIF_CE_state *hif_state = HIF_GET_CE_STATE(scn); 874 875 if (!hif_state) { 876 hif_err("hif_state null"); 877 return; 878 } 879 hif_clear_ce_stats(hif_state); 880 } 881