// SPDX-License-Identifier: GPL-2.0 /* * xHCI host controller driver PCI Bus Glue. * * Copyright (C) 2008 Intel Corp. * * Author: Sarah Sharp * Some code borrowed from the Linux EHCI driver. */ #include <linux/pci.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/acpi.h> #include <linux/reset.h> #include <linux/suspend.h> #include "xhci.h" #include "xhci-trace.h" #include "xhci-pci.h" #define SSIC_PORT_NUM … #define SSIC_PORT_CFG2 … #define SSIC_PORT_CFG2_OFFSET … #define PROG_DONE … #define SSIC_PORT_UNUSED … #define SPARSE_DISABLE_BIT … #define SPARSE_CNTL_ENABLE … /* Device for a quirk */ #define PCI_VENDOR_ID_FRESCO_LOGIC … #define PCI_DEVICE_ID_FRESCO_LOGIC_PDK … #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009 … #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 … #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400 … #define PCI_VENDOR_ID_ETRON … #define PCI_DEVICE_ID_EJ168 … #define PCI_DEVICE_ID_EJ188 … #define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI … #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI … #define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI … #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI … #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI … #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI … #define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI … #define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI … #define PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI … #define PCI_DEVICE_ID_INTEL_DENVERTON_XHCI … #define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI … #define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI … #define PCI_DEVICE_ID_INTEL_TIGER_LAKE_PCH_XHCI … #define PCI_DEVICE_ID_INTEL_COMET_LAKE_XHCI … #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI … #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI … /* Thunderbolt */ #define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI … #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI … #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_XHCI … #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_XHCI … #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_XHCI … #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_XHCI … #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI … #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI … #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI … #define PCI_DEVICE_ID_AMD_RENOIR_XHCI … #define PCI_DEVICE_ID_AMD_PROMONTORYA_4 … #define PCI_DEVICE_ID_AMD_PROMONTORYA_3 … #define PCI_DEVICE_ID_AMD_PROMONTORYA_2 … #define PCI_DEVICE_ID_AMD_PROMONTORYA_1 … #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI … #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI … #define PCI_DEVICE_ID_ASMEDIA_1142_XHCI … #define PCI_DEVICE_ID_ASMEDIA_2142_XHCI … #define PCI_DEVICE_ID_ASMEDIA_3242_XHCI … static const char hcd_name[] = …; static struct hc_driver __read_mostly xhci_pci_hc_driver; static int xhci_pci_setup(struct usb_hcd *hcd); static int xhci_pci_run(struct usb_hcd *hcd); static int xhci_pci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hdev, struct usb_tt *tt, gfp_t mem_flags); static const struct xhci_driver_overrides xhci_pci_overrides __initconst = …; static void xhci_msix_sync_irqs(struct xhci_hcd *xhci) { … } /* Free any IRQs and disable MSI-X */ static void xhci_cleanup_msix(struct xhci_hcd *xhci) { … } /* Try enabling MSI-X with MSI and legacy IRQ as fallback */ static int xhci_try_enable_msi(struct usb_hcd *hcd) { … } static int xhci_pci_run(struct usb_hcd *hcd) { … } static void xhci_pci_stop(struct usb_hcd *hcd) { … } /* called after powerup, by probe or system-pm "wakeup" */ static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev) { … } static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) { … } #ifdef CONFIG_ACPI static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { … } static void xhci_find_lpm_incapable_ports(struct usb_hcd *hcd, struct usb_device *hdev) { … } #else static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { } static void xhci_find_lpm_incapable_ports(struct usb_hcd *hcd, struct usb_device *hdev) { } #endif /* CONFIG_ACPI */ /* called during probe() after chip reset completes */ static int xhci_pci_setup(struct usb_hcd *hcd) { … } static int xhci_pci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hdev, struct usb_tt *tt, gfp_t mem_flags) { … } /* * We need to register our own PCI probe function (instead of the USB core's * function) in order to create a second roothub under xHCI. */ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { … } static void xhci_pci_remove(struct pci_dev *dev) { … } /* * In some Intel xHCI controllers, in order to get D3 working, * through a vendor specific SSIC CONFIG register at offset 0x883c, * SSIC PORT need to be marked as "unused" before putting xHCI * into D3. After D3 exit, the SSIC port need to be marked as "used". * Without this change, xHCI might not enter D3 state. */ static void xhci_ssic_port_unused_quirk(struct usb_hcd *hcd, bool suspend) { … } /* * Make sure PME works on some Intel xHCI controllers by writing 1 to clear * the Internal PME flag bit in vendor specific PMCTRL register at offset 0x80a4 */ static void xhci_pme_quirk(struct usb_hcd *hcd) { … } static void xhci_sparse_control_quirk(struct usb_hcd *hcd) { … } static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) { … } static int xhci_pci_resume(struct usb_hcd *hcd, pm_message_t msg) { … } static int xhci_pci_poweroff_late(struct usb_hcd *hcd, bool do_wakeup) { … } static void xhci_pci_shutdown(struct usb_hcd *hcd) { … } /*-------------------------------------------------------------------------*/ static const struct xhci_driver_data reneses_data = …; /* PCI driver selection metadata; PCI hotplugging uses this */ static const struct pci_device_id pci_ids[] = …; MODULE_DEVICE_TABLE(pci, pci_ids); /* * Without CONFIG_USB_XHCI_PCI_RENESAS renesas_xhci_check_request_fw() won't * load firmware, so don't encumber the xhci-pci driver with it. */ #if IS_ENABLED(CONFIG_USB_XHCI_PCI_RENESAS) MODULE_FIRMWARE(…) …; #endif /* pci driver glue; this is a "new style" PCI driver module */ static struct pci_driver xhci_pci_driver = …; static int __init xhci_pci_init(void) { … } module_init(…) …; static void __exit xhci_pci_exit(void) { … } module_exit(xhci_pci_exit); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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