zephyr/subsys/usb/usb_c/usbc_timer.c
Sam Hurst 914fed36d5 usb_c: run clang-format
Run clang-format

Signed-off-by: Sam Hurst <sbh1187@gmail.com>
2023-01-05 10:34:06 +01:00

61 lines
1.5 KiB
C

/*
* Copyright (c) 2022 The Chromium OS Authors
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbc_timer.h"
/** Timer flag to track if timer was started */
#define TIMER_STARTED 0
/** Timer flag to track if timer has expired */
#define TIMER_EXPIRED 1
/**
* @brief The timer function that's executed when the timer expires
*/
static void usbc_timer_handler(struct k_timer *timer)
{
struct usbc_timer_t *usbc_timer = k_timer_user_data_get(timer);
atomic_set_bit(&usbc_timer->flags, TIMER_EXPIRED);
}
void usbc_timer_init(struct usbc_timer_t *usbc_timer, uint32_t timeout_ms)
{
k_timer_init(&usbc_timer->timer, usbc_timer_handler, NULL);
k_timer_user_data_set(&usbc_timer->timer, usbc_timer);
usbc_timer->timeout_ms = timeout_ms;
}
void usbc_timer_start(struct usbc_timer_t *usbc_timer)
{
atomic_clear_bit(&usbc_timer->flags, TIMER_EXPIRED);
atomic_set_bit(&usbc_timer->flags, TIMER_STARTED);
k_timer_start(&usbc_timer->timer, K_MSEC(usbc_timer->timeout_ms), K_NO_WAIT);
}
bool usbc_timer_expired(struct usbc_timer_t *usbc_timer)
{
bool started = atomic_test_bit(&usbc_timer->flags, TIMER_STARTED);
bool expired = atomic_test_bit(&usbc_timer->flags, TIMER_EXPIRED);
if (started & expired) {
atomic_clear_bit(&usbc_timer->flags, TIMER_STARTED);
return true;
}
return false;
}
bool usbc_timer_running(struct usbc_timer_t *usbc_timer)
{
return atomic_test_bit(&usbc_timer->flags, TIMER_STARTED);
}
void usbc_timer_stop(struct usbc_timer_t *usbc_timer)
{
atomic_clear_bit(&usbc_timer->flags, TIMER_STARTED);
k_timer_stop(&usbc_timer->timer);
}