1. 根目录:
2. arch
3. arm
4. plat-samsung
5. include
6. plat
7. samsung-time.h

/* linux/arch/arm/plat-samsung/include/plat/samsung-time.h
 *
 * Copyright 2011 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com/
 *
 * Header file for samsung s3c and s5p time support
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

#ifndef __ASM_PLAT_SAMSUNG_TIME_H
#define __ASM_PLAT_SAMSUNG_TIME_H __FILE__

/* SAMSUNG HR-Timer Clock mode */
enum samsung_timer_mode {
	SAMSUNG_PWM0,
	SAMSUNG_PWM1,
	SAMSUNG_PWM2,
	SAMSUNG_PWM3,
	SAMSUNG_PWM4,
};

struct samsung_timer_source {
	unsigned int event_id;
	unsigned int source_id;
};

/* Be able to sleep for atleast 4 seconds (usually more) */
#define SAMSUNG_TIMER_MIN_RANGE	4

#if defined(CONFIG_ARCH_S3C24XX) || defined(CONFIG_ARCH_S5PC100)
#define TCNT_MAX		0xffff
#define TSCALER_DIV		25
#define TDIV			50
#define TSIZE			16
#else
#define TCNT_MAX		0xffffffff
#define TSCALER_DIV		2
#define TDIV			2
#define TSIZE			32
#endif

#define NON_PERIODIC		0
#define PERIODIC		1

extern void __init samsung_set_timer_source(enum samsung_timer_mode event,
					enum samsung_timer_mode source);

extern void __init samsung_timer_init(void);

#endif /* __ASM_PLAT_SAMSUNG_TIME_H */