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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/acpi/acpi_drivers.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */

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/*

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 *  acpi_drivers.h  ($Revision: 31 $)

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 *

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 *  Copyright (C) 2001, 2002 Andy Grover <[email protected]>

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 *  Copyright (C) 2001, 2002 Paul Diefenbaugh <[email protected]>

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 */

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#ifndef __ACPI_DRIVERS_H__

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#define __ACPI_DRIVERS_H__

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#define ACPI_MAX_STRING			80

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/*

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 * _HID definitions

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 * HIDs must conform to ACPI spec(6.1.4)

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 * Linux specific HIDs do not apply to this and begin with LNX:

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 */

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#define ACPI_POWER_HID			"LNXPOWER"

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#define ACPI_PROCESSOR_OBJECT_HID	"LNXCPU"

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#define ACPI_SYSTEM_HID			"LNXSYSTM"

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#define ACPI_THERMAL_HID		"LNXTHERM"

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#define ACPI_BUTTON_HID_POWERF		"LNXPWRBN"

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#define ACPI_BUTTON_HID_SLEEPF		"LNXSLPBN"

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#define ACPI_VIDEO_HID			"LNXVIDEO"

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#define ACPI_BAY_HID			"LNXIOBAY"

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#define ACPI_DOCK_HID			"LNXDOCK"

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#define ACPI_ECDT_HID			"LNXEC"

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/* SMBUS HID definition as supported by Microsoft Windows */

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#define ACPI_SMBUS_MS_HID		"SMB0001"

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/* Quirk for broken IBM BIOSes */

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#define ACPI_SMBUS_IBM_HID		"SMBUSIBM"

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/*

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 * For fixed hardware buttons, we fabricate acpi_devices with HID

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 * ACPI_BUTTON_HID_POWERF or ACPI_BUTTON_HID_SLEEPF.  Fixed hardware

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 * signals only an event; it doesn't supply a notification value.

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 * To allow drivers to treat notifications from fixed hardware the

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 * same as those from real devices, we turn the events into this

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 * notification value.

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 */

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#define ACPI_FIXED_HARDWARE_EVENT	0x100

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/* --------------------------------------------------------------------------

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                                       PCI

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   -------------------------------------------------------------------------- */

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/* ACPI PCI Interrupt Link */

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int acpi_irq_penalty_init(void);

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int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,

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			       int *polarity, char **name);

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int acpi_pci_link_free_irq(acpi_handle handle);

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/* ACPI PCI Device Binding */

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struct pci_bus;

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#ifdef CONFIG_PCI

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struct pci_dev *acpi_get_pci_dev(acpi_handle);

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#else

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static inline struct pci_dev *acpi_get_pci_dev(acpi_handle handle)

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{

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	return NULL;

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}

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#endif

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/* Arch-defined function to add a bus to the system */

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struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root);

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#ifdef CONFIG_X86

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void pci_acpi_crs_quirks(void);

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#else

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static inline void pci_acpi_crs_quirks(void) { }

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#endif

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/*--------------------------------------------------------------------------

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                                  Dock Station

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  -------------------------------------------------------------------------- */

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#ifdef CONFIG_ACPI_DOCK

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extern int is_dock_device(struct acpi_device *adev);

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#else

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static inline int is_dock_device(struct acpi_device *adev)

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{

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	return 0;

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}

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#endif /* CONFIG_ACPI_DOCK */

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#endif /*__ACPI_DRIVERS_H__*/

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