LXR linux/include/acpi/acpi

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *  acpi_drivers.h  ($Revision: 31 $)
   4 *
   5 *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
   6 *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
   7 */
   8
   9#ifndef __ACPI_DRIVERS_H__
  10#define __ACPI_DRIVERS_H__
  11
  12#define ACPI_MAX_STRING                 80
  13
  14/*
  15 * _HID definitions
  16 * HIDs must conform to ACPI spec(6.1.4)
  17 * Linux specific HIDs do not apply to this and begin with LNX:
  18 */
  19
  20#define ACPI_POWER_HID                  "LNXPOWER"
  21#define ACPI_PROCESSOR_OBJECT_HID       "LNXCPU"
  22#define ACPI_SYSTEM_HID                 "LNXSYSTM"
  23#define ACPI_THERMAL_HID                "LNXTHERM"
  24#define ACPI_BUTTON_HID_POWERF          "LNXPWRBN"
  25#define ACPI_BUTTON_HID_SLEEPF          "LNXSLPBN"
  26#define ACPI_VIDEO_HID                  "LNXVIDEO"
  27#define ACPI_BAY_HID                    "LNXIOBAY"
  28#define ACPI_DOCK_HID                   "LNXDOCK"
  29#define ACPI_ECDT_HID                   "LNXEC"
  30/* Quirk for broken IBM BIOSes */
  31#define ACPI_SMBUS_IBM_HID              "SMBUSIBM"
  32
  33/*
  34 * For fixed hardware buttons, we fabricate acpi_devices with HID
  35 * ACPI_BUTTON_HID_POWERF or ACPI_BUTTON_HID_SLEEPF.  Fixed hardware
  36 * signals only an event; it doesn't supply a notification value.
  37 * To allow drivers to treat notifications from fixed hardware the
  38 * same as those from real devices, we turn the events into this
  39 * notification value.
  40 */
  41#define ACPI_FIXED_HARDWARE_EVENT       0x100
  42
  43/* --------------------------------------------------------------------------
  44                                       PCI
  45   -------------------------------------------------------------------------- */
  46
  47
  48/* ACPI PCI Interrupt Link */
  49
  50int acpi_irq_penalty_init(void);
  51int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
  52                               int *polarity, char **name);
  53int acpi_pci_link_free_irq(acpi_handle handle);
  54
  55/* ACPI PCI Device Binding */
  56
  57struct pci_bus;
  58
  59#ifdef CONFIG_PCI
  60struct pci_dev *acpi_get_pci_dev(acpi_handle);
  61#else
  62static inline struct pci_dev *acpi_get_pci_dev(acpi_handle handle)
  63{
  64        return NULL;
  65}
  66#endif
  67
  68/* Arch-defined function to add a bus to the system */
  69
  70struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root);
  71
  72#ifdef CONFIG_X86
  73void pci_acpi_crs_quirks(void);
  74#else
  75static inline void pci_acpi_crs_quirks(void) { }
  76#endif
  77
  78/*--------------------------------------------------------------------------
  79                                  Dock Station
  80  -------------------------------------------------------------------------- */
  81
  82#ifdef CONFIG_ACPI_DOCK
  83extern int is_dock_device(struct acpi_device *adev);
  84#else
  85static inline int is_dock_device(struct acpi_device *adev)
  86{
  87        return 0;
  88}
  89#endif /* CONFIG_ACPI_DOCK */
  90
  91#endif /*__ACPI_DRIVERS_H__*/
  92