/* * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. * Copyright (c) 2018, The Linux Foundation. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include "wil6210.h" #include #include static bool use_msi = true; module_param(use_msi, bool, 0444); MODULE_PARM_DESC(use_msi, " Use MSI interrupt, default - true"); static bool ftm_mode; module_param(ftm_mode, bool, 0444); MODULE_PARM_DESC(ftm_mode, " Set factory test mode, default - false"); static int wil6210_pm_notify(struct notifier_block *notify_block, unsigned long mode, void *unused); static int wil_set_capabilities(struct wil6210_priv *wil) { const char *wil_fw_name; u32 jtag_id = wil_r(wil, RGF_USER_JTAG_DEV_ID); u8 chip_revision = (wil_r(wil, RGF_USER_REVISION_ID) & RGF_USER_REVISION_ID_MASK); int platform_capa; struct fw_map *iccm_section; bitmap_zero(wil->hw_capa, hw_capa_last); bitmap_zero(wil->fw_capabilities, WMI_FW_CAPABILITY_MAX); bitmap_zero(wil->platform_capa, WIL_PLATFORM_CAPA_MAX); wil->wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_DEFAULT : WIL_FW_NAME_DEFAULT; wil->chip_revision = chip_revision; switch (jtag_id) { case JTAG_DEV_ID_SPARROW: switch (chip_revision) { case REVISION_ID_SPARROW_D0: wil->hw_name = "Sparrow D0"; wil->hw_version = HW_VER_SPARROW_D0; wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_SPARROW_PLUS : WIL_FW_NAME_SPARROW_PLUS; if (wil_fw_verify_file_exists(wil, wil_fw_name)) wil->wil_fw_name = wil_fw_name; break; case REVISION_ID_SPARROW_B0: wil->hw_name = "Sparrow B0"; wil->hw_version = HW_VER_SPARROW_B0; break; default: wil->hw_name = "Unknown"; wil->hw_version = HW_VER_UNKNOWN; break; } memcpy(fw_mapping, sparrow_fw_mapping, sizeof(sparrow_fw_mapping)); wil->rgf_fw_assert_code_addr = SPARROW_RGF_FW_ASSERT_CODE; wil->rgf_ucode_assert_code_addr = SPARROW_RGF_UCODE_ASSERT_CODE; break; case JTAG_DEV_ID_TALYN: wil->hw_name = "Talyn"; wil->hw_version = HW_VER_TALYN; memcpy(fw_mapping, talyn_fw_mapping, sizeof(talyn_fw_mapping)); wil->rgf_fw_assert_code_addr = TALYN_RGF_FW_ASSERT_CODE; wil->rgf_ucode_assert_code_addr = TALYN_RGF_UCODE_ASSERT_CODE; if (wil_r(wil, RGF_USER_OTP_HW_RD_MACHINE_1) & BIT_NO_FLASH_INDICATION) set_bit(hw_capa_no_flash, wil->hw_capa); break; default: wil_err(wil, "Unknown board hardware, chip_id 0x%08x, chip_revision 0x%08x\n", jtag_id, chip_revision); wil->hw_name = "Unknown"; wil->hw_version = HW_VER_UNKNOWN; return -EINVAL; } iccm_section = wil_find_fw_mapping("fw_code"); if (!iccm_section) { wil_err(wil, "fw_code section not found in fw_mapping\n"); return -EINVAL; } wil->iccm_base = iccm_section->host; wil_info(wil, "Board hardware is %s, flash %sexist\n", wil->hw_name, test_bit(hw_capa_no_flash, wil->hw_capa) ? "doesn't " : ""); /* Get platform capabilities */ if (wil->platform_ops.get_capa) { platform_capa = wil->platform_ops.get_capa(wil->platform_handle); memcpy(wil->platform_capa, &platform_capa, min(sizeof(wil->platform_capa), sizeof(platform_capa))); } /* extract FW capabilities from file without loading the FW */ wil_request_firmware(wil, wil->wil_fw_name, false); wil_refresh_fw_capabilities(wil); return 0; } void wil_disable_irq(struct wil6210_priv *wil) { disable_irq(wil->pdev->irq); } void wil_enable_irq(struct wil6210_priv *wil) { enable_irq(wil->pdev->irq); } /* Bus ops */ static int wil_if_pcie_enable(struct wil6210_priv *wil) { struct pci_dev *pdev = wil->pdev; int rc; /* on platforms with buggy ACPI, pdev->msi_enabled may be set to * allow pci_enable_device to work. This indicates INTx was not routed * and only MSI should be used */ int msi_only = pdev->msi_enabled; bool _use_msi = use_msi; bool wmi_only = test_bit(WMI_FW_CAPABILITY_WMI_ONLY, wil->fw_capabilities); wil_dbg_misc(wil, "if_pcie_enable, wmi_only %d\n", wmi_only); pci_set_master(pdev); wil_dbg_misc(wil, "Setup %s interrupt\n", use_msi ? "MSI" : "INTx"); if (use_msi && pci_enable_msi(pdev)) { wil_err(wil, "pci_enable_msi failed, use INTx\n"); _use_msi = false; } if (!_use_msi && msi_only) { wil_err(wil, "Interrupt pin not routed, unable to use INTx\n"); rc = -ENODEV; goto stop_master; } rc = wil6210_init_irq(wil, pdev->irq, _use_msi); if (rc) goto stop_master; /* need reset here to obtain MAC or in case of WMI-only FW, full reset * and fw loading takes place */ mutex_lock(&wil->mutex); rc = wil_reset(wil, wmi_only); mutex_unlock(&wil->mutex); if (rc) goto release_irq; return 0; release_irq: wil6210_fini_irq(wil, pdev->irq); /* safe to call if no MSI */ pci_disable_msi(pdev); stop_master: pci_clear_master(pdev); return rc; } static int wil_if_pcie_disable(struct wil6210_priv *wil) { struct pci_dev *pdev = wil->pdev; wil_dbg_misc(wil, "if_pcie_disable\n"); pci_clear_master(pdev); /* disable and release IRQ */ wil6210_fini_irq(wil, pdev->irq); /* safe to call if no MSI */ pci_disable_msi(pdev); /* TODO: disable HW */ return 0; } static int wil_platform_rop_ramdump(void *wil_handle, void *buf, uint32_t size) { struct wil6210_priv *wil = wil_handle; if (!wil) return -EINVAL; return wil_fw_copy_crash_dump(wil, buf, size); } static int wil_platform_rop_fw_recovery(void *wil_handle) { struct wil6210_priv *wil = wil_handle; if (!wil) return -EINVAL; wil_fw_error_recovery(wil); return 0; } static void wil_platform_ops_uninit(struct wil6210_priv *wil) { if (wil->platform_ops.uninit) wil->platform_ops.uninit(wil->platform_handle); memset(&wil->platform_ops, 0, sizeof(wil->platform_ops)); } static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct wil6210_priv *wil; struct device *dev = &pdev->dev; int rc; const struct wil_platform_rops rops = { .ramdump = wil_platform_rop_ramdump, .fw_recovery = wil_platform_rop_fw_recovery, }; u32 bar_size = pci_resource_len(pdev, 0); int dma_addr_size[] = {48, 40, 32}; /* keep descending order */ int i; /* check HW */ dev_info(&pdev->dev, WIL_NAME " device found [%04x:%04x] (rev %x) bar size 0x%x\n", (int)pdev->vendor, (int)pdev->device, (int)pdev->revision, bar_size); if ((bar_size < WIL6210_MIN_MEM_SIZE) || (bar_size > WIL6210_MAX_MEM_SIZE)) { dev_err(&pdev->dev, "Unexpected BAR0 size 0x%x\n", bar_size); return -ENODEV; } wil = wil_if_alloc(dev); if (IS_ERR(wil)) { rc = (int)PTR_ERR(wil); dev_err(dev, "wil_if_alloc failed: %d\n", rc); return rc; } wil->pdev = pdev; pci_set_drvdata(pdev, wil); wil->bar_size = bar_size; /* rollback to if_free */ wil->platform_handle = wil_platform_init(&pdev->dev, &wil->platform_ops, &rops, wil); if (!wil->platform_handle) { rc = -ENODEV; wil_err(wil, "wil_platform_init failed\n"); goto if_free; } /* rollback to err_plat */ /* device supports >32bit addresses */ for (i = 0; i < ARRAY_SIZE(dma_addr_size); i++) { rc = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(dma_addr_size[i])); if (rc) { dev_err(dev, "dma_set_mask_and_coherent(%d) failed: %d\n", dma_addr_size[i], rc); continue; } dev_info(dev, "using dma mask %d", dma_addr_size[i]); wil->dma_addr_size = dma_addr_size[i]; break; } if (wil->dma_addr_size == 0) goto err_plat; rc = pci_enable_device(pdev); if (rc && pdev->msi_enabled == 0) { wil_err(wil, "pci_enable_device failed, retry with MSI only\n"); /* Work around for platforms that can't allocate IRQ: * retry with MSI only */ pdev->msi_enabled = 1; rc = pci_enable_device(pdev); } if (rc) { wil_err(wil, "pci_enable_device failed, even with MSI only\n"); goto err_plat; } /* rollback to err_disable_pdev */ pci_set_power_state(pdev, PCI_D0); rc = pci_request_region(pdev, 0, WIL_NAME); if (rc) { wil_err(wil, "pci_request_region failed\n"); goto err_disable_pdev; } /* rollback to err_release_reg */ wil->csr = pci_ioremap_bar(pdev, 0); if (!wil->csr) { wil_err(wil, "pci_ioremap_bar failed\n"); rc = -ENODEV; goto err_release_reg; } /* rollback to err_iounmap */ wil_info(wil, "CSR at %pR -> 0x%p\n", &pdev->resource[0], wil->csr); rc = wil_set_capabilities(wil); if (rc) { wil_err(wil, "wil_set_capabilities failed, rc %d\n", rc); goto err_iounmap; } wil6210_clear_irq(wil); /* FW should raise IRQ when ready */ rc = wil_if_pcie_enable(wil); if (rc) { wil_err(wil, "Enable device failed\n"); goto err_iounmap; } /* rollback to bus_disable */ rc = wil_if_add(wil); if (rc) { wil_err(wil, "wil_if_add failed: %d\n", rc); goto bus_disable; } if (IS_ENABLED(CONFIG_PM)) wil->pm_notify.notifier_call = wil6210_pm_notify; rc = register_pm_notifier(&wil->pm_notify); if (rc) /* Do not fail the driver initialization, as suspend can * be prevented in a later phase if needed */ wil_err(wil, "register_pm_notifier failed: %d\n", rc); wil6210_debugfs_init(wil); wil_pm_runtime_allow(wil); return 0; bus_disable: wil_if_pcie_disable(wil); err_iounmap: pci_iounmap(pdev, wil->csr); err_release_reg: pci_release_region(pdev, 0); err_disable_pdev: pci_disable_device(pdev); err_plat: wil_platform_ops_uninit(wil); if_free: wil_if_free(wil); return rc; } static void wil_pcie_remove(struct pci_dev *pdev) { struct wil6210_priv *wil = pci_get_drvdata(pdev); void __iomem *csr = wil->csr; wil_dbg_misc(wil, "pcie_remove\n"); unregister_pm_notifier(&wil->pm_notify); wil_pm_runtime_forbid(wil); wil6210_debugfs_remove(wil); rtnl_lock(); wil_p2p_wdev_free(wil); rtnl_unlock(); wil_if_remove(wil); wil_if_pcie_disable(wil); pci_iounmap(pdev, csr); pci_release_region(pdev, 0); pci_disable_device(pdev); wil_platform_ops_uninit(wil); wil_if_free(wil); } static const struct pci_device_id wil6210_pcie_ids[] = { { PCI_DEVICE(0x1ae9, 0x0310) }, { PCI_DEVICE(0x1ae9, 0x0302) }, /* same as above, firmware broken */ { PCI_DEVICE(0x17cb, 0x1201) }, /* Talyn */ { /* end: all zeroes */ }, }; MODULE_DEVICE_TABLE(pci, wil6210_pcie_ids); static int wil6210_suspend(struct device *dev, bool is_runtime) { int rc = 0; struct pci_dev *pdev = to_pci_dev(dev); struct wil6210_priv *wil = pci_get_drvdata(pdev); struct net_device *ndev = wil_to_ndev(wil); bool keep_radio_on = ndev->flags & IFF_UP && wil->keep_radio_on_during_sleep; wil_dbg_pm(wil, "suspend: %s\n", is_runtime ? "runtime" : "system"); rc = wil_can_suspend(wil, is_runtime); if (rc) goto out; rc = wil_suspend(wil, is_runtime, keep_radio_on); if (!rc) { /* In case radio stays on, platform device will control * PCIe master */ if (!keep_radio_on) { /* disable bus mastering */ pci_clear_master(pdev); wil->suspend_stats.r_off.successful_suspends++; } else { wil->suspend_stats.r_on.successful_suspends++; } } out: return rc; } static int wil6210_resume(struct device *dev, bool is_runtime) { int rc = 0; struct pci_dev *pdev = to_pci_dev(dev); struct wil6210_priv *wil = pci_get_drvdata(pdev); struct net_device *ndev = wil_to_ndev(wil); bool keep_radio_on = ndev->flags & IFF_UP && wil->keep_radio_on_during_sleep; wil_dbg_pm(wil, "resume: %s\n", is_runtime ? "runtime" : "system"); /* In case radio stays on, platform device will control * PCIe master */ if (!keep_radio_on) /* allow master */ pci_set_master(pdev); rc = wil_resume(wil, is_runtime, keep_radio_on); if (rc) { wil_err(wil, "device failed to resume (%d)\n", rc); if (!keep_radio_on) { pci_clear_master(pdev); wil->suspend_stats.r_off.failed_resumes++; } else { wil->suspend_stats.r_on.failed_resumes++; } } else { if (keep_radio_on) wil->suspend_stats.r_on.successful_resumes++; else wil->suspend_stats.r_off.successful_resumes++; } return rc; } static int wil6210_pm_notify(struct notifier_block *notify_block, unsigned long mode, void *unused) { struct wil6210_priv *wil = container_of( notify_block, struct wil6210_priv, pm_notify); int rc = 0; enum wil_platform_event evt; wil_dbg_pm(wil, "pm_notify: mode (%ld)\n", mode); switch (mode) { case PM_HIBERNATION_PREPARE: case PM_SUSPEND_PREPARE: case PM_RESTORE_PREPARE: rc = wil_can_suspend(wil, false); if (rc) break; evt = WIL_PLATFORM_EVT_PRE_SUSPEND; if (wil->platform_ops.notify) rc = wil->platform_ops.notify(wil->platform_handle, evt); break; case PM_POST_SUSPEND: case PM_POST_HIBERNATION: case PM_POST_RESTORE: evt = WIL_PLATFORM_EVT_POST_SUSPEND; if (wil->platform_ops.notify) rc = wil->platform_ops.notify(wil->platform_handle, evt); break; default: wil_dbg_pm(wil, "unhandled notify mode %ld\n", mode); break; } wil_dbg_pm(wil, "notification mode %ld: rc (%d)\n", mode, rc); return rc; } static int __maybe_unused wil6210_pm_suspend(struct device *dev) { return wil6210_suspend(dev, false); } static int __maybe_unused wil6210_pm_resume(struct device *dev) { return wil6210_resume(dev, false); } static int __maybe_unused wil6210_pm_runtime_idle(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct wil6210_priv *wil = pci_get_drvdata(pdev); wil_dbg_pm(wil, "Runtime idle\n"); return wil_can_suspend(wil, true); } static int __maybe_unused wil6210_pm_runtime_resume(struct device *dev) { return wil6210_resume(dev, true); } static int __maybe_unused wil6210_pm_runtime_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct wil6210_priv *wil = pci_get_drvdata(pdev); if (test_bit(wil_status_suspended, wil->status)) { wil_dbg_pm(wil, "trying to suspend while suspended\n"); return 1; } return wil6210_suspend(dev, true); } static const struct dev_pm_ops wil6210_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(wil6210_pm_suspend, wil6210_pm_resume) SET_RUNTIME_PM_OPS(wil6210_pm_runtime_suspend, wil6210_pm_runtime_resume, wil6210_pm_runtime_idle) }; static struct pci_driver wil6210_driver = { .probe = wil_pcie_probe, .remove = wil_pcie_remove, .id_table = wil6210_pcie_ids, .name = WIL_NAME, .driver = { .pm = &wil6210_pm_ops, }, }; static int __init wil6210_driver_init(void) { int rc; rc = wil_platform_modinit(); if (rc) return rc; rc = pci_register_driver(&wil6210_driver); if (rc) wil_platform_modexit(); return rc; } module_init(wil6210_driver_init); static void __exit wil6210_driver_exit(void) { pci_unregister_driver(&wil6210_driver); wil_platform_modexit(); } module_exit(wil6210_driver_exit); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Qualcomm Atheros "); MODULE_DESCRIPTION("Driver for 60g WiFi WIL6210 card");