timex.h

《嵌入式系统设计与实例开发实验教材二源码》Linux内核移植与编译实验

/*
 * linux/include/asm-m68k/timex.h
 *
 * m68k architecture timex specifications
 */
#ifndef _ASMm68k_TIMEX_H
#define _ASMm68k_TIMEX_H

#define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
#define CLOCK_TICK_FACTOR	20	/* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
	(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
		<< (SHIFT_SCALE-SHIFT_HZ)) / HZ)

typedef unsigned long cycles_t;

static inline cycles_t get_cycles(void)
{
	return 0;
}

#endif