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/*
* Copyright (c) 2015 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief Timer driver API
*
*
* Declare API implemented by system timer driver and used by kernel components.
*/
#ifndef _TIMER__H_
#define _TIMER__H_
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _ASMLANGUAGE
GTEXT(_timer_int_handler)
#else /* _ASMLANGUAGE */
#include <device.h>
extern int _sys_clock_driver_init(struct device *device);
extern void _timer_int_handler(void *arg);
#ifdef CONFIG_SYSTEM_CLOCK_DISABLE
extern void sys_clock_disable(void);
#endif
#ifdef CONFIG_TICKLESS_IDLE
extern void _timer_idle_enter(s32_t ticks);
extern void _timer_idle_exit(void);
#endif /* CONFIG_TICKLESS_IDLE */
extern void _nano_sys_clock_tick_announce(s32_t ticks);
extern int sys_clock_device_ctrl(struct device *device,
u32_t ctrl_command, void *context);
/*
* Currently regarding timers, only loapic timer and arcv2_timer0 implements
* device pm functionality. For other timers, use default handler in case
* the app enables CONFIG_DEVICE_POWER_MANAGEMENT.
*/
#if !defined(CONFIG_LOAPIC_TIMER) && !defined(CONFIG_ARCV2_TIMER)
#define sys_clock_device_ctrl device_pm_control_nop
#endif
extern s32_t _sys_idle_elapsed_ticks;
#define _sys_clock_tick_announce() \
_nano_sys_clock_tick_announce(_sys_idle_elapsed_ticks)
/**
* @brief Account for the tick due to the timer interrupt
*
* @return N/A
*/
static inline void _sys_clock_final_tick_announce(void)
{
/*
* Ticks are both announced and immediately processed at interrupt
* level. Thus there is only one tick left to announce (and process).
*/
_sys_idle_elapsed_ticks = 1;
_sys_clock_tick_announce();
}
#endif /* _ASMLANGUAGE */
#ifdef __cplusplus
}
#endif
#endif /* _TIMER__H_ */
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