drivers/net/wireless/ath/wil6210/pcie_bus.c

   1 /*
   2  * Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
   3  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include <linux/module.h>
  19 #include <linux/pci.h>
  20 #include <linux/moduleparam.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/suspend.h>
  23 #include "wil6210.h"
  24 #include <linux/rtnetlink.h>
  25 #include <linux/pm_runtime.h>
  26
  27 static int n_msi = 3;
  28 module_param(n_msi, int, 0444);
  29 MODULE_PARM_DESC(n_msi, " Use MSI interrupt: 0 - use INTx, 1 - single, or 3 - (default) ");
  30
  31 bool ftm_mode;
  32 module_param(ftm_mode, bool, 0444);
  33 MODULE_PARM_DESC(ftm_mode, " Set factory test mode, default - false");
  34
  35 static int wil6210_pm_notify(struct notifier_block *notify_block,
  36                              unsigned long mode, void *unused);
  37
  38 static
  39 int wil_set_capabilities(struct wil6210_priv *wil)
  40 {
  41         const char *wil_fw_name;
  42         u32 jtag_id = wil_r(wil, RGF_USER_JTAG_DEV_ID);
  43         u8 chip_revision = (wil_r(wil, RGF_USER_REVISION_ID) &
  44                             RGF_USER_REVISION_ID_MASK);
  45         int platform_capa;
  46         struct fw_map *iccm_section, *sct;
  47
  48         bitmap_zero(wil->hw_capa, hw_capa_last);
  49         bitmap_zero(wil->fw_capabilities, WMI_FW_CAPABILITY_MAX);
  50         bitmap_zero(wil->platform_capa, WIL_PLATFORM_CAPA_MAX);
  51         wil->wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_DEFAULT :
  52                            WIL_FW_NAME_DEFAULT;
  53         wil->chip_revision = chip_revision;
  54
  55         switch (jtag_id) {
  56         case JTAG_DEV_ID_SPARROW:
  57                 memcpy(fw_mapping, sparrow_fw_mapping,
  58                        sizeof(sparrow_fw_mapping));
  59                 switch (chip_revision) {
  60                 case REVISION_ID_SPARROW_D0:
  61                         wil->hw_name = "Sparrow D0";
  62                         wil->hw_version = HW_VER_SPARROW_D0;
  63                         wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_SPARROW_PLUS :
  64                                       WIL_FW_NAME_SPARROW_PLUS;
  65
  66                         if (wil_fw_verify_file_exists(wil, wil_fw_name))
  67                                 wil->wil_fw_name = wil_fw_name;
  68                         sct = wil_find_fw_mapping("mac_rgf_ext");
  69                         if (!sct) {
  70                                 wil_err(wil, "mac_rgf_ext section not found in fw_mapping\n");
  71                                 return -EINVAL;
  72                         }
  73                         memcpy(sct, &sparrow_d0_mac_rgf_ext, sizeof(*sct));
  74                         break;
  75                 case REVISION_ID_SPARROW_B0:
  76                         wil->hw_name = "Sparrow B0";
  77                         wil->hw_version = HW_VER_SPARROW_B0;
  78                         break;
  79                 default:
  80                         wil->hw_name = "Unknown";
  81                         wil->hw_version = HW_VER_UNKNOWN;
  82                         break;
  83                 }
  84                 wil->rgf_fw_assert_code_addr = SPARROW_RGF_FW_ASSERT_CODE;
  85                 wil->rgf_ucode_assert_code_addr = SPARROW_RGF_UCODE_ASSERT_CODE;
  86                 break;
  87         case JTAG_DEV_ID_TALYN:
  88                 wil->hw_name = "Talyn-MA";
  89                 wil->hw_version = HW_VER_TALYN;
  90                 memcpy(fw_mapping, talyn_fw_mapping, sizeof(talyn_fw_mapping));
  91                 wil->rgf_fw_assert_code_addr = TALYN_RGF_FW_ASSERT_CODE;
  92                 wil->rgf_ucode_assert_code_addr = TALYN_RGF_UCODE_ASSERT_CODE;
  93                 if (wil_r(wil, RGF_USER_OTP_HW_RD_MACHINE_1) &
  94                     BIT_NO_FLASH_INDICATION)
  95                         set_bit(hw_capa_no_flash, wil->hw_capa);
  96                 wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_TALYN :
  97                               WIL_FW_NAME_TALYN;
  98                 if (wil_fw_verify_file_exists(wil, wil_fw_name))
  99                         wil->wil_fw_name = wil_fw_name;
 100                 break;
 101         case JTAG_DEV_ID_TALYN_MB:
 102                 wil->hw_name = "Talyn-MB";
 103                 wil->hw_version = HW_VER_TALYN_MB;
 104                 memcpy(fw_mapping, talyn_mb_fw_mapping,
 105                        sizeof(talyn_mb_fw_mapping));
 106                 wil->rgf_fw_assert_code_addr = TALYN_RGF_FW_ASSERT_CODE;
 107                 wil->rgf_ucode_assert_code_addr = TALYN_RGF_UCODE_ASSERT_CODE;
 108                 set_bit(hw_capa_no_flash, wil->hw_capa);
 109                 wil->use_enhanced_dma_hw = true;
 110                 wil->use_rx_hw_reordering = true;
 111                 wil->use_compressed_rx_status = true;
 112                 wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_TALYN :
 113                               WIL_FW_NAME_TALYN;
 114                 if (wil_fw_verify_file_exists(wil, wil_fw_name))
 115                         wil->wil_fw_name = wil_fw_name;
 116                 break;
 117         default:
 118                 wil_err(wil, "Unknown board hardware, chip_id 0x%08x, chip_revision 0x%08x\n",
 119                         jtag_id, chip_revision);
 120                 wil->hw_name = "Unknown";
 121                 wil->hw_version = HW_VER_UNKNOWN;
 122                 return -EINVAL;
 123         }
 124
 125         wil_init_txrx_ops(wil);
 126
 127         iccm_section = wil_find_fw_mapping("fw_code");
 128         if (!iccm_section) {
 129                 wil_err(wil, "fw_code section not found in fw_mapping\n");
 130                 return -EINVAL;
 131         }
 132         wil->iccm_base = iccm_section->host;
 133
 134         wil_info(wil, "Board hardware is %s, flash %sexist\n", wil->hw_name,
 135                  test_bit(hw_capa_no_flash, wil->hw_capa) ? "doesn't " : "");
 136
 137         /* Get platform capabilities */
 138         if (wil->platform_ops.get_capa) {
 139                 platform_capa =
 140                         wil->platform_ops.get_capa(wil->platform_handle);
 141                 memcpy(wil->platform_capa, &platform_capa,
 142                        min(sizeof(wil->platform_capa), sizeof(platform_capa)));
 143         }
 144
 145         /* extract FW capabilities from file without loading the FW */
 146         wil_request_firmware(wil, wil->wil_fw_name, false);
 147         wil_refresh_fw_capabilities(wil);
 148
 149         return 0;
 150 }
 151
 152 void wil_disable_irq(struct wil6210_priv *wil)
 153 {
 154         int irq = wil->pdev->irq;
 155
 156         disable_irq(irq);
 157         if (wil->n_msi == 3) {
 158                 disable_irq(irq + 1);
 159                 disable_irq(irq + 2);
 160         }
 161 }
 162
 163 void wil_enable_irq(struct wil6210_priv *wil)
 164 {
 165         int irq = wil->pdev->irq;
 166
 167         enable_irq(irq);
 168         if (wil->n_msi == 3) {
 169                 enable_irq(irq + 1);
 170                 enable_irq(irq + 2);
 171         }
 172 }
 173
 174 static void wil_remove_all_additional_vifs(struct wil6210_priv *wil)
 175 {
 176         struct wil6210_vif *vif;
 177         int i;
 178
 179         for (i = 1; i < wil->max_vifs; i++) {
 180                 vif = wil->vifs[i];
 181                 if (vif) {
 182                         wil_vif_prepare_stop(vif);
 183                         wil_vif_remove(wil, vif->mid);
 184                 }
 185         }
 186 }
 187
 188 /* Bus ops */
 189 static int wil_if_pcie_enable(struct wil6210_priv *wil)
 190 {
 191         struct pci_dev *pdev = wil->pdev;
 192         int rc;
 193         /* on platforms with buggy ACPI, pdev->msi_enabled may be set to
 194          * allow pci_enable_device to work. This indicates INTx was not routed
 195          * and only MSI should be used
 196          */
 197         int msi_only = pdev->msi_enabled;
 198
 199         wil_dbg_misc(wil, "if_pcie_enable\n");
 200
 201         pci_set_master(pdev);
 202
 203         /* how many MSI interrupts to request? */
 204         switch (n_msi) {
 205         case 3:
 206         case 1:
 207                 wil_dbg_misc(wil, "Setup %d MSI interrupts\n", n_msi);
 208                 break;
 209         case 0:
 210                 wil_dbg_misc(wil, "MSI interrupts disabled, use INTx\n");
 211                 break;
 212         default:
 213                 wil_err(wil, "Invalid n_msi=%d, default to 1\n", n_msi);
 214                 n_msi = 1;
 215         }
 216
 217         if (n_msi == 3 &&
 218             pci_alloc_irq_vectors(pdev, n_msi, n_msi, PCI_IRQ_MSI) < n_msi) {
 219                 wil_err(wil, "3 MSI mode failed, try 1 MSI\n");
 220                 n_msi = 1;
 221         }
 222
 223         if (n_msi == 1 && pci_enable_msi(pdev)) {
 224                 wil_err(wil, "pci_enable_msi failed, use INTx\n");
 225                 n_msi = 0;
 226         }
 227
 228         wil->n_msi = n_msi;
 229
 230         if (wil->n_msi == 0 && msi_only) {
 231                 wil_err(wil, "Interrupt pin not routed, unable to use INTx\n");
 232                 rc = -ENODEV;
 233                 goto stop_master;
 234         }
 235
 236         rc = wil6210_init_irq(wil, pdev->irq);
 237         if (rc)
 238                 goto release_vectors;
 239
 240         /* need reset here to obtain MAC */
 241         mutex_lock(&wil->mutex);
 242         rc = wil_reset(wil, false);
 243         mutex_unlock(&wil->mutex);
 244         if (rc)
 245                 goto release_irq;
 246
 247         return 0;
 248
 249  release_irq:
 250         wil6210_fini_irq(wil, pdev->irq);
 251  release_vectors:
 252         /* safe to call if no allocation */
 253         pci_free_irq_vectors(pdev);
 254  stop_master:
 255         pci_clear_master(pdev);
 256         return rc;
 257 }
 258
 259 static int wil_if_pcie_disable(struct wil6210_priv *wil)
 260 {
 261         struct pci_dev *pdev = wil->pdev;
 262
 263         wil_dbg_misc(wil, "if_pcie_disable\n");
 264
 265         pci_clear_master(pdev);
 266         /* disable and release IRQ */
 267         wil6210_fini_irq(wil, pdev->irq);
 268         /* safe to call if no MSI */
 269         pci_disable_msi(pdev);
 270         /* TODO: disable HW */
 271
 272         return 0;
 273 }
 274
 275 static int wil_platform_rop_ramdump(void *wil_handle, void *buf, uint32_t size)
 276 {
 277         struct wil6210_priv *wil = wil_handle;
 278
 279         if (!wil)
 280                 return -EINVAL;
 281
 282         return wil_fw_copy_crash_dump(wil, buf, size);
 283 }
 284
 285 static int wil_platform_rop_fw_recovery(void *wil_handle)
 286 {
 287         struct wil6210_priv *wil = wil_handle;
 288
 289         if (!wil)
 290                 return -EINVAL;
 291
 292         wil_fw_error_recovery(wil);
 293
 294         return 0;
 295 }
 296
 297 static void wil_platform_ops_uninit(struct wil6210_priv *wil)
 298 {
 299         if (wil->platform_ops.uninit)
 300                 wil->platform_ops.uninit(wil->platform_handle);
 301         memset(&wil->platform_ops, 0, sizeof(wil->platform_ops));
 302 }
 303
 304 static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 305 {
 306         struct wil6210_priv *wil;
 307         struct device *dev = &pdev->dev;
 308         int rc;
 309         const struct wil_platform_rops rops = {
 310                 .ramdump = wil_platform_rop_ramdump,
 311                 .fw_recovery = wil_platform_rop_fw_recovery,
 312         };
 313         u32 bar_size = pci_resource_len(pdev, 0);
 314         int dma_addr_size[] = {64, 48, 40, 32}; /* keep descending order */
 315         int i, start_idx;
 316
 317         /* check HW */
 318         dev_info(&pdev->dev, WIL_NAME
 319                  " device found [%04x:%04x] (rev %x) bar size 0x%x\n",
 320                  (int)pdev->vendor, (int)pdev->device, (int)pdev->revision,
 321                  bar_size);
 322
 323         if ((bar_size < WIL6210_MIN_MEM_SIZE) ||
 324             (bar_size > WIL6210_MAX_MEM_SIZE)) {
 325                 dev_err(&pdev->dev, "Unexpected BAR0 size 0x%x\n",
 326                         bar_size);
 327                 return -ENODEV;
 328         }
 329
 330         wil = wil_if_alloc(dev);
 331         if (IS_ERR(wil)) {
 332                 rc = (int)PTR_ERR(wil);
 333                 dev_err(dev, "wil_if_alloc failed: %d\n", rc);
 334                 return rc;
 335         }
 336
 337         wil->pdev = pdev;
 338         pci_set_drvdata(pdev, wil);
 339         wil->bar_size = bar_size;
 340         /* rollback to if_free */
 341
 342         wil->platform_handle =
 343                 wil_platform_init(&pdev->dev, &wil->platform_ops, &rops, wil);
 344         if (!wil->platform_handle) {
 345                 rc = -ENODEV;
 346                 wil_err(wil, "wil_platform_init failed\n");
 347                 goto if_free;
 348         }
 349         /* rollback to err_plat */
 350         rc = pci_enable_device(pdev);
 351         if (rc && pdev->msi_enabled == 0) {
 352                 wil_err(wil,
 353                         "pci_enable_device failed, retry with MSI only\n");
 354                 /* Work around for platforms that can't allocate IRQ:
 355                  * retry with MSI only
 356                  */
 357                 pdev->msi_enabled = 1;
 358                 rc = pci_enable_device(pdev);
 359         }
 360         if (rc) {
 361                 wil_err(wil,
 362                         "pci_enable_device failed, even with MSI only\n");
 363                 goto err_plat;
 364         }
 365         /* rollback to err_disable_pdev */
 366         pci_set_power_state(pdev, PCI_D0);
 367
 368         rc = pci_request_region(pdev, 0, WIL_NAME);
 369         if (rc) {
 370                 wil_err(wil, "pci_request_region failed\n");
 371                 goto err_disable_pdev;
 372         }
 373         /* rollback to err_release_reg */
 374
 375         wil->csr = pci_ioremap_bar(pdev, 0);
 376         if (!wil->csr) {
 377                 wil_err(wil, "pci_ioremap_bar failed\n");
 378                 rc = -ENODEV;
 379                 goto err_release_reg;
 380         }
 381         /* rollback to err_iounmap */
 382         wil_info(wil, "CSR at %pR -> 0x%p\n", &pdev->resource[0], wil->csr);
 383
 384         rc = wil_set_capabilities(wil);
 385         if (rc) {
 386                 wil_err(wil, "wil_set_capabilities failed, rc %d\n", rc);
 387                 goto err_iounmap;
 388         }
 389
 390         /* device supports >32bit addresses.
 391          * for legacy DMA start from 48 bit.
 392          */
 393         start_idx = wil->use_enhanced_dma_hw ? 0 : 1;
 394
 395         for (i = start_idx; i < ARRAY_SIZE(dma_addr_size); i++) {
 396                 rc = dma_set_mask_and_coherent(dev,
 397                                                DMA_BIT_MASK(dma_addr_size[i]));
 398                 if (rc) {
 399                         dev_err(dev, "dma_set_mask_and_coherent(%d) failed: %d\n",
 400                                 dma_addr_size[i], rc);
 401                         continue;
 402                 }
 403                 dev_info(dev, "using dma mask %d", dma_addr_size[i]);
 404                 wil->dma_addr_size = dma_addr_size[i];
 405                 break;
 406         }
 407
 408         if (wil->dma_addr_size == 0)
 409                 goto err_iounmap;
 410
 411         wil6210_clear_irq(wil);
 412
 413         /* FW should raise IRQ when ready */
 414         rc = wil_if_pcie_enable(wil);
 415         if (rc) {
 416                 wil_err(wil, "Enable device failed\n");
 417                 goto err_iounmap;
 418         }
 419         /* rollback to bus_disable */
 420
 421         rc = wil_if_add(wil);
 422         if (rc) {
 423                 wil_err(wil, "wil_if_add failed: %d\n", rc);
 424                 goto bus_disable;
 425         }
 426
 427         /* in case of WMI-only FW, perform full reset and FW loading */
 428         if (test_bit(WMI_FW_CAPABILITY_WMI_ONLY, wil->fw_capabilities)) {
 429                 wil_dbg_misc(wil, "Loading WMI only FW\n");
 430                 mutex_lock(&wil->mutex);
 431                 rc = wil_reset(wil, true);
 432                 mutex_unlock(&wil->mutex);
 433                 if (rc) {
 434                         wil_err(wil, "failed to load WMI only FW\n");
 435                         goto if_remove;
 436                 }
 437         }
 438
 439         if (IS_ENABLED(CONFIG_PM))
 440                 wil->pm_notify.notifier_call = wil6210_pm_notify;
 441
 442         rc = register_pm_notifier(&wil->pm_notify);
 443         if (rc)
 444                 /* Do not fail the driver initialization, as suspend can
 445                  * be prevented in a later phase if needed
 446                  */
 447                 wil_err(wil, "register_pm_notifier failed: %d\n", rc);
 448
 449         wil6210_debugfs_init(wil);
 450
 451         wil_pm_runtime_allow(wil);
 452
 453         return 0;
 454
 455 if_remove:
 456         wil_if_remove(wil);
 457 bus_disable:
 458         wil_if_pcie_disable(wil);
 459 err_iounmap:
 460         pci_iounmap(pdev, wil->csr);
 461 err_release_reg:
 462         pci_release_region(pdev, 0);
 463 err_disable_pdev:
 464         pci_disable_device(pdev);
 465 err_plat:
 466         wil_platform_ops_uninit(wil);
 467 if_free:
 468         wil_if_free(wil);
 469
 470         return rc;
 471 }
 472
 473 static void wil_pcie_remove(struct pci_dev *pdev)
 474 {
 475         struct wil6210_priv *wil = pci_get_drvdata(pdev);
 476         void __iomem *csr = wil->csr;
 477
 478         wil_dbg_misc(wil, "pcie_remove\n");
 479
 480         unregister_pm_notifier(&wil->pm_notify);
 481
 482         wil_pm_runtime_forbid(wil);
 483
 484         wil6210_debugfs_remove(wil);
 485         rtnl_lock();
 486         wil_p2p_wdev_free(wil);
 487         wil_remove_all_additional_vifs(wil);
 488         rtnl_unlock();
 489         wil_if_remove(wil);
 490         wil_if_pcie_disable(wil);
 491         pci_iounmap(pdev, csr);
 492         pci_release_region(pdev, 0);
 493         pci_disable_device(pdev);
 494         wil_platform_ops_uninit(wil);
 495         wil_if_free(wil);
 496 }
 497
 498 static const struct pci_device_id wil6210_pcie_ids[] = {
 499         { PCI_DEVICE(0x1ae9, 0x0310) },
 500         { PCI_DEVICE(0x1ae9, 0x0302) }, /* same as above, firmware broken */
 501         { PCI_DEVICE(0x17cb, 0x1201) }, /* Talyn */
 502         { /* end: all zeroes */ },
 503 };
 504 MODULE_DEVICE_TABLE(pci, wil6210_pcie_ids);
 505
 506 static int wil6210_suspend(struct device *dev, bool is_runtime)
 507 {
 508         int rc = 0;
 509         struct pci_dev *pdev = to_pci_dev(dev);
 510         struct wil6210_priv *wil = pci_get_drvdata(pdev);
 511         bool keep_radio_on, active_ifaces;
 512
 513         wil_dbg_pm(wil, "suspend: %s\n", is_runtime ? "runtime" : "system");
 514
 515         mutex_lock(&wil->vif_mutex);
 516         active_ifaces = wil_has_active_ifaces(wil, true, false);
 517         mutex_unlock(&wil->vif_mutex);
 518         keep_radio_on = active_ifaces && wil->keep_radio_on_during_sleep;
 519
 520         rc = wil_can_suspend(wil, is_runtime);
 521         if (rc)
 522                 goto out;
 523
 524         rc = wil_suspend(wil, is_runtime, keep_radio_on);
 525         if (!rc) {
 526                 /* In case radio stays on, platform device will control
 527                  * PCIe master
 528                  */
 529                 if (!keep_radio_on) {
 530                         /* disable bus mastering */
 531                         pci_clear_master(pdev);
 532                         wil->suspend_stats.r_off.successful_suspends++;
 533                 } else {
 534                         wil->suspend_stats.r_on.successful_suspends++;
 535                 }
 536         }
 537 out:
 538         return rc;
 539 }
 540
 541 static int wil6210_resume(struct device *dev, bool is_runtime)
 542 {
 543         int rc = 0;
 544         struct pci_dev *pdev = to_pci_dev(dev);
 545         struct wil6210_priv *wil = pci_get_drvdata(pdev);
 546         bool keep_radio_on, active_ifaces;
 547
 548         wil_dbg_pm(wil, "resume: %s\n", is_runtime ? "runtime" : "system");
 549
 550         mutex_lock(&wil->vif_mutex);
 551         active_ifaces = wil_has_active_ifaces(wil, true, false);
 552         mutex_unlock(&wil->vif_mutex);
 553         keep_radio_on = active_ifaces && wil->keep_radio_on_during_sleep;
 554
 555         /* In case radio stays on, platform device will control
 556          * PCIe master
 557          */
 558         if (!keep_radio_on)
 559                 /* allow master */
 560                 pci_set_master(pdev);
 561         rc = wil_resume(wil, is_runtime, keep_radio_on);
 562         if (rc) {
 563                 wil_err(wil, "device failed to resume (%d)\n", rc);
 564                 if (!keep_radio_on) {
 565                         pci_clear_master(pdev);
 566                         wil->suspend_stats.r_off.failed_resumes++;
 567                 } else {
 568                         wil->suspend_stats.r_on.failed_resumes++;
 569                 }
 570         } else {
 571                 if (keep_radio_on)
 572                         wil->suspend_stats.r_on.successful_resumes++;
 573                 else
 574                         wil->suspend_stats.r_off.successful_resumes++;
 575         }
 576
 577         return rc;
 578 }
 579
 580 static int wil6210_pm_notify(struct notifier_block *notify_block,
 581                              unsigned long mode, void *unused)
 582 {
 583         struct wil6210_priv *wil = container_of(
 584                 notify_block, struct wil6210_priv, pm_notify);
 585         int rc = 0;
 586         enum wil_platform_event evt;
 587
 588         wil_dbg_pm(wil, "pm_notify: mode (%ld)\n", mode);
 589
 590         switch (mode) {
 591         case PM_HIBERNATION_PREPARE:
 592         case PM_SUSPEND_PREPARE:
 593         case PM_RESTORE_PREPARE:
 594                 rc = wil_can_suspend(wil, false);
 595                 if (rc)
 596                         break;
 597                 evt = WIL_PLATFORM_EVT_PRE_SUSPEND;
 598                 if (wil->platform_ops.notify)
 599                         rc = wil->platform_ops.notify(wil->platform_handle,
 600                                                       evt);
 601                 break;
 602         case PM_POST_SUSPEND:
 603         case PM_POST_HIBERNATION:
 604         case PM_POST_RESTORE:
 605                 evt = WIL_PLATFORM_EVT_POST_SUSPEND;
 606                 if (wil->platform_ops.notify)
 607                         rc = wil->platform_ops.notify(wil->platform_handle,
 608                                                       evt);
 609                 break;
 610         default:
 611                 wil_dbg_pm(wil, "unhandled notify mode %ld\n", mode);
 612                 break;
 613         }
 614
 615         wil_dbg_pm(wil, "notification mode %ld: rc (%d)\n", mode, rc);
 616         return rc;
 617 }
 618
 619 static int __maybe_unused wil6210_pm_suspend(struct device *dev)
 620 {
 621         return wil6210_suspend(dev, false);
 622 }
 623
 624 static int __maybe_unused wil6210_pm_resume(struct device *dev)
 625 {
 626         return wil6210_resume(dev, false);
 627 }
 628
 629 static int __maybe_unused wil6210_pm_runtime_idle(struct device *dev)
 630 {
 631         struct pci_dev *pdev = to_pci_dev(dev);
 632         struct wil6210_priv *wil = pci_get_drvdata(pdev);
 633
 634         wil_dbg_pm(wil, "Runtime idle\n");
 635
 636         return wil_can_suspend(wil, true);
 637 }
 638
 639 static int __maybe_unused wil6210_pm_runtime_resume(struct device *dev)
 640 {
 641         return wil6210_resume(dev, true);
 642 }
 643
 644 static int __maybe_unused wil6210_pm_runtime_suspend(struct device *dev)
 645 {
 646         struct pci_dev *pdev = to_pci_dev(dev);
 647         struct wil6210_priv *wil = pci_get_drvdata(pdev);
 648
 649         if (test_bit(wil_status_suspended, wil->status)) {
 650                 wil_dbg_pm(wil, "trying to suspend while suspended\n");
 651                 return 1;
 652         }
 653
 654         return wil6210_suspend(dev, true);
 655 }
 656
 657 static const struct dev_pm_ops wil6210_pm_ops = {
 658         SET_SYSTEM_SLEEP_PM_OPS(wil6210_pm_suspend, wil6210_pm_resume)
 659         SET_RUNTIME_PM_OPS(wil6210_pm_runtime_suspend,
 660                            wil6210_pm_runtime_resume,
 661                            wil6210_pm_runtime_idle)
 662 };
 663
 664 static struct pci_driver wil6210_driver = {
 665         .probe          = wil_pcie_probe,
 666         .remove         = wil_pcie_remove,
 667         .id_table       = wil6210_pcie_ids,
 668         .name           = WIL_NAME,
 669         .driver         = {
 670                 .pm = &wil6210_pm_ops,
 671         },
 672 };
 673
 674 static int __init wil6210_driver_init(void)
 675 {
 676         int rc;
 677
 678         rc = wil_platform_modinit();
 679         if (rc)
 680                 return rc;
 681
 682         rc = pci_register_driver(&wil6210_driver);
 683         if (rc)
 684                 wil_platform_modexit();
 685         return rc;
 686 }
 687 module_init(wil6210_driver_init);
 688
 689 static void __exit wil6210_driver_exit(void)
 690 {
 691         pci_unregister_driver(&wil6210_driver);
 692         wil_platform_modexit();
 693 }
 694 module_exit(wil6210_driver_exit);
 695
 696 MODULE_LICENSE("Dual BSD/GPL");
 697 MODULE_AUTHOR("Qualcomm Atheros <wil6210@qca.qualcomm.com>");
 698 MODULE_DESCRIPTION("Driver for 60g WiFi WIL6210 card");