2016-06-26 00:34:39 +02:00
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#ifndef _TIMER_H_
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#define _TIMER_H_
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#include "cpu.h"
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extern int timer_start;
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#define timer_start_period(cycles) \
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timer_start = cycles;
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#define timer_end_period(cycles) \
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do \
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{ \
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int diff = timer_start - (cycles); \
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timer_count -= diff; \
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timer_start = cycles; \
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if (timer_count <= 0) \
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{ \
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timer_process(); \
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timer_update_outstanding(); \
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} \
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} while (0)
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#define timer_clock() \
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do \
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{ \
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int diff; \
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if (AT) \
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{ \
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diff = timer_start - (cycles << TIMER_SHIFT); \
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timer_start = cycles << TIMER_SHIFT; \
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} \
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else \
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{ \
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diff = timer_start - (cycles * xt_cpu_multi); \
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timer_start = cycles * xt_cpu_multi; \
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} \
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timer_count -= diff; \
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timer_process(); \
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timer_update_outstanding(); \
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} while (0)
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void timer_process();
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void timer_update_outstanding();
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void timer_reset();
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int timer_add(void (*callback)(void *priv), int *count, int *enable, void *priv);
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void timer_set_callback(int timer, void (*callback)(void *priv));
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#define TIMER_ALWAYS_ENABLED &timer_one
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extern int timer_count;
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extern int timer_one;
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2016-07-12 18:53:30 +02:00
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// #define TIMER_SHIFT 6
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/* Reduced by 4 in order to alleviate problems at higher CPU speed. Will be put back if a better solution is ever implemented. */
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#define TIMER_SHIFT 4
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2016-06-26 00:34:39 +02:00
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extern int TIMER_USEC;
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#endif /*_TIMER_H_*/
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