Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | /*
* Copyright (c) 2018 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <kernel.h>
#include <string.h>
#include "wrapper.h"
#define ACTIVE 1
#define NOT_ACTIVE 0
static void zephyr_timer_wrapper(struct k_timer *timer);
K_MEM_SLAB_DEFINE(cv2_timer_slab, sizeof(struct cv2_timer),
CONFIG_CMSIS_V2_TIMER_MAX_COUNT, 4);
static const osTimerAttr_t init_timer_attrs = {
.name = "ZephyrTimer",
.attr_bits = 0,
.cb_mem = NULL,
.cb_size = 0,
};
static void zephyr_timer_wrapper(struct k_timer *timer)
{
struct cv2_timer *cm_timer;
cm_timer = CONTAINER_OF(timer, struct cv2_timer, z_timer);
(cm_timer->callback_function)(cm_timer->arg);
}
/**
* @brief Create a Timer
*/
osTimerId_t osTimerNew(osTimerFunc_t func, osTimerType_t type,
void *argument, const osTimerAttr_t *attr)
{
struct cv2_timer *timer;
if (type != osTimerOnce && type != osTimerPeriodic) {
return NULL;
}
if (k_is_in_isr()) {
return NULL;
}
if (attr == NULL) {
attr = &init_timer_attrs;
}
if (k_mem_slab_alloc(&cv2_timer_slab, (void **)&timer, K_MSEC(100)) == 0) {
(void)memset(timer, 0, sizeof(struct cv2_timer));
} else {
return NULL;
}
timer->callback_function = func;
timer->arg = argument;
timer->type = type;
timer->status = NOT_ACTIVE;
k_timer_init(&timer->z_timer, zephyr_timer_wrapper, NULL);
if (attr->name == NULL) {
strncpy(timer->name, init_timer_attrs.name,
sizeof(timer->name) - 1);
} else {
strncpy(timer->name, attr->name, sizeof(timer->name) - 1);
}
return (osTimerId_t)timer;
}
/**
* @brief Start or restart a Timer
*/
osStatus_t osTimerStart(osTimerId_t timer_id, uint32_t ticks)
{
struct cv2_timer *timer = (struct cv2_timer *)timer_id;
u32_t millisec = k_ticks_to_ms_floor64(ticks);
if (timer == NULL) {
return osErrorParameter;
}
if (k_is_in_isr()) {
return osErrorISR;
}
if (timer->type == osTimerOnce) {
k_timer_start(&timer->z_timer, millisec, K_NO_WAIT);
} else if (timer->type == osTimerPeriodic) {
k_timer_start(&timer->z_timer, K_NO_WAIT, millisec);
}
timer->status = ACTIVE;
return osOK;
}
/**
* @brief Stop the Timer
*/
osStatus_t osTimerStop(osTimerId_t timer_id)
{
struct cv2_timer *timer = (struct cv2_timer *)timer_id;
if (timer == NULL) {
return osErrorParameter;
}
if (k_is_in_isr()) {
return osErrorISR;
}
if (timer->status == NOT_ACTIVE) {
return osErrorResource;
}
k_timer_stop(&timer->z_timer);
timer->status = NOT_ACTIVE;
return osOK;
}
/**
* @brief Delete the timer that was created by osTimerCreate
*/
osStatus_t osTimerDelete(osTimerId_t timer_id)
{
struct cv2_timer *timer = (struct cv2_timer *) timer_id;
if (timer == NULL) {
return osErrorParameter;
}
if (k_is_in_isr()) {
return osErrorISR;
}
if (timer->status == ACTIVE) {
k_timer_stop(&timer->z_timer);
timer->status = NOT_ACTIVE;
}
k_mem_slab_free(&cv2_timer_slab, (void *) &timer);
return osOK;
}
/**
* @brief Get name of a timer.
*/
const char *osTimerGetName(osTimerId_t timer_id)
{
struct cv2_timer *timer = (struct cv2_timer *)timer_id;
if (k_is_in_isr() || (timer == NULL)) {
return NULL;
}
return timer->name;
}
/**
* @brief Check if a timer is running.
*/
uint32_t osTimerIsRunning(osTimerId_t timer_id)
{
struct cv2_timer *timer = (struct cv2_timer *)timer_id;
if (k_is_in_isr() || (timer == NULL)) {
return 0;
}
return !(!(k_timer_remaining_get(&timer->z_timer)));
}
|