u-boot-brain/arch/x86/include/asm/acpi.h
Bin Meng a0609a8d19 x86: acpi: Move APIs unrelated to ACPI tables generation to a separate library
acpi_find_fadt(), acpi_find_wakeup_vector() and enter_acpi_mode()
are something unrelated to ACPI tables generation. Move these to
a separate library.

This also fixes several style issues reported by checkpatch in the
original codes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-07-20 09:33:22 +08:00

42 lines
1.0 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
*/
#ifndef __ASM_ACPI_H__
#define __ASM_ACPI_H__
struct acpi_fadt;
/**
* acpi_find_fadt() - find ACPI FADT table in the system memory
*
* This routine parses the ACPI table to locate the ACPI FADT table.
*
* @return: a pointer to the ACPI FADT table in the system memory
*/
struct acpi_fadt *acpi_find_fadt(void);
/**
* acpi_find_wakeup_vector() - find OS installed wake up vector address
*
* This routine parses the ACPI table to locate the wake up vector installed
* by the OS previously.
*
* @fadt: a pointer to the ACPI FADT table in the system memory
* @return: wake up vector address installed by the OS
*/
void *acpi_find_wakeup_vector(struct acpi_fadt *fadt);
/**
* enter_acpi_mode() - enter into ACPI mode
*
* This programs the ACPI-defined PM1_CNT register to enable SCI interrupt
* so that the whole system swiches to ACPI mode.
*
* @pm1_cnt: PM1_CNT register I/O address
*/
void enter_acpi_mode(int pm1_cnt);
#endif /* __ASM_ACPI_H__ */