include/acpi/acpigen.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Core ACPI (Advanced Configuration and Power Interface) support
 *
 * Copyright 2019 Google LLC
 *
 * Modified from coreboot file acpigen.h
 */

#ifndef __ACPI_ACPIGEN_H
#define __ACPI_ACPIGEN_H

#include <linux/types.h>

struct acpi_ctx;

/**
 * acpigen_get_current() - Get the current ACPI code output pointer
 *
 * @ctx: ACPI context pointer
 * @return output pointer
 */
u8 *acpigen_get_current(struct acpi_ctx *ctx);

/**
 * acpigen_emit_byte() - Emit a byte to the ACPI code
 *
 * @ctx: ACPI context pointer
 * @data: Value to output
 */
void acpigen_emit_byte(struct acpi_ctx *ctx, uint data);

/**
 * acpigen_emit_word() - Emit a 16-bit word to the ACPI code
 *
 * @ctx: ACPI context pointer
 * @data: Value to output
 */
void acpigen_emit_word(struct acpi_ctx *ctx, uint data);

/**
 * acpigen_emit_dword() - Emit a 32-bit 'double word' to the ACPI code
 *
 * @ctx: ACPI context pointer
 * @data: Value to output
 */
void acpigen_emit_dword(struct acpi_ctx *ctx, uint data);

/**
 * acpigen_emit_stream() - Emit a stream of bytes
 *
 * @ctx: ACPI context pointer
 * @data: Data to output
 * @size: Size of data in bytes
 */
void acpigen_emit_stream(struct acpi_ctx *ctx, const char *data, int size);

/**
 * acpigen_emit_string() - Emit a string
 *
 * Emit a string with a null terminator
 *
 * @ctx: ACPI context pointer
 * @str: String to output, or NULL for an empty string
 */
void acpigen_emit_string(struct acpi_ctx *ctx, const char *str);

#endif