blob: 14f275c220a4225182dea0459258fa18c1d77d41 [file] [log] [blame]
/*
* Copyright (c) 2018 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_LEGACY_SET_TIME_H__
#define ZEPHYR_LEGACY_SET_TIME_H__
/* Stub implementation of z_clock_set_timeout() and z_clock_elapsed()
* in terms of the original APIs. Used by older timer drivers.
* Should be replaced.
*
* Yes, this "header" includes function definitions and must be
* included only once in a single compilation.
*/
#ifdef CONFIG_TICKLESS_IDLE
void z_timer_idle_enter(int32_t ticks);
void z_clock_idle_exit(void);
#endif
#ifdef CONFIG_TICKLESS_KERNEL
void z_set_time(uint32_t time);
extern uint32_t z_get_program_time(void);
extern uint32_t z_get_remaining_program_time(void);
extern uint32_t z_get_elapsed_program_time(void);
#endif
extern uint64_t z_clock_uptime(void);
void z_clock_set_timeout(int32_t ticks, bool idle)
{
#if defined(CONFIG_TICKLESS_IDLE) && defined(CONFIG_TICKLESS_KERNEL)
if (idle) {
z_timer_idle_enter(ticks);
} else {
z_set_time(ticks == K_TICKS_FOREVER ? 0 : ticks);
}
#endif /* TICKLESS_IDLE && TICKLESS_KERNEL */
}
/* The old driver "now" API would return a full uptime value. The new
* one only requires the driver to track ticks since the last announce
* call. Implement the new call in terms of the old one on legacy
* drivers by keeping (yet another) uptime value locally.
*/
static uint32_t driver_uptime;
uint32_t z_clock_elapsed(void)
{
#ifdef CONFIG_TICKLESS_KERNEL
return (uint32_t)(z_clock_uptime() - driver_uptime);
#else
return 0;
#endif
}
static void wrapped_announce(int32_t ticks)
{
driver_uptime += ticks;
z_clock_announce(ticks);
}
#define z_clock_announce(t) wrapped_announce(t)
#define _sys_clock_always_on (0)
static inline void z_tick_set(int64_t val)
{
/* noop with current kernel code, use z_clock_announce() */
ARG_UNUSED(val);
}
#endif /* ZEPHYR_LEGACY_SET_TIME_H__ */