1. 根目录:
2. drivers
3. thermal
4. int340x_thermal
5. acpi_thermal_rel.h

#ifndef __ACPI_ACPI_THERMAL_H
#define __ACPI_ACPI_THERMAL_H

#include <asm/ioctl.h>

#define ACPI_THERMAL_MAGIC 's'

#define ACPI_THERMAL_GET_TRT_LEN _IOR(ACPI_THERMAL_MAGIC, 1, unsigned long)
#define ACPI_THERMAL_GET_ART_LEN _IOR(ACPI_THERMAL_MAGIC, 2, unsigned long)
#define ACPI_THERMAL_GET_TRT_COUNT _IOR(ACPI_THERMAL_MAGIC, 3, unsigned long)
#define ACPI_THERMAL_GET_ART_COUNT _IOR(ACPI_THERMAL_MAGIC, 4, unsigned long)

#define ACPI_THERMAL_GET_TRT	_IOR(ACPI_THERMAL_MAGIC, 5, unsigned long)
#define ACPI_THERMAL_GET_ART	_IOR(ACPI_THERMAL_MAGIC, 6, unsigned long)

struct art {
	acpi_handle source;
	acpi_handle target;
	u64 weight;
	u64 ac0_max;
	u64 ac1_max;
	u64 ac2_max;
	u64 ac3_max;
	u64 ac4_max;
	u64 ac5_max;
	u64 ac6_max;
	u64 ac7_max;
	u64 ac8_max;
	u64 ac9_max;
} __packed;

struct trt {
	acpi_handle source;
	acpi_handle target;
	u64 influence;
	u64 sample_period;
	u64 reverved1;
	u64 reverved2;
	u64 reverved3;
	u64 reverved4;
} __packed;

#define ACPI_NR_ART_ELEMENTS 13
/* for usrspace */
union art_object {
	struct {
		char source_device[8]; /* ACPI single name */
		char target_device[8]; /* ACPI single name */
		u64 weight;
		u64 ac0_max_level;
		u64 ac1_max_level;
		u64 ac2_max_level;
		u64 ac3_max_level;
		u64 ac4_max_level;
		u64 ac5_max_level;
		u64 ac6_max_level;
		u64 ac7_max_level;
		u64 ac8_max_level;
		u64 ac9_max_level;
	};
	u64 __data[ACPI_NR_ART_ELEMENTS];
};

union trt_object {
	struct {
		char source_device[8]; /* ACPI single name */
		char target_device[8]; /* ACPI single name */
		u64 influence;
		u64 sample_period;
		u64 reserved[4];
	};
	u64 __data[8];
};

#ifdef __KERNEL__
int acpi_thermal_rel_misc_device_add(acpi_handle handle);
int acpi_thermal_rel_misc_device_remove(acpi_handle handle);
int acpi_parse_art(acpi_handle handle, int *art_count, struct art **arts,
		bool create_dev);
int acpi_parse_trt(acpi_handle handle, int *trt_count, struct trt **trts,
		bool create_dev);
#endif

#endif /* __ACPI_ACPI_THERMAL_H */