/*
 * Copyright (c) 2008 Travis Geiselbrecht
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#ifndef __PLATFORM_TIMER_H
#define __PLATFORM_TIMER_H

#include <sys/types.h>

typedef enum handler_return (*platform_timer_callback)(void *arg,
                             lk_time_ns_t now);

status_t platform_set_periodic_timer(platform_timer_callback callback, void *arg, lk_time_t interval);

#if PLATFORM_HAS_DYNAMIC_TIMER
status_t platform_set_oneshot_timer(platform_timer_callback callback,
                                    lk_time_ns_t time_ns);
void     platform_stop_timer(void);
#endif

struct platform_timer_state {
	uint64_t tval;  /* timer counter */
	uint64_t cval;  /* timer comparator */
};

void platform_export_timer_state(struct platform_timer_state *ts, bool raw);

#endif