counter.h

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/* SPDX-License-Identifier: MIT */
/*
 * Author: Andreas Werner <kernel@andy89.org>
 * Date: 2016
 */
#ifndef COUNTER_H_
#define COUNTER_H_
#include <FreeRTOS.h>
#include <stdint.h>
#include <stdbool.h>
#include <system.h>
#include <hal.h>
enum counter_mode {
        COUNTER_FALLING,
        COUNTER_RISING,
        COUNTER_EITHER,
};
struct counter;
#ifdef CONFIG_COUNTER_MULTI
 
struct counter_ops {
        struct counter *(*counter_init)(uint32_t index, enum counter_mode mode);
        int32_t (*counter_deinit)(struct counter *counter);
        int64_t (*counter_getValue)(struct counter *counter);
        int32_t (*counter_reset)(struct counter *counter);
};
#endif
 
struct counter_generic {
        bool init;
#ifdef CONFIG_INSTANCE_NAME
 
        const char *name;
#endif
#ifdef CONFIG_COUNTER_MULTI
 
        const struct counter_ops *ops;
#endif
};
#ifndef CONFIG_COUNTER_MULTI
 
struct counter *counter_init(uint32_t index, enum counter_mode mode);
int32_t counter_deinit(struct counter *counter);
int64_t counter_getValue(struct counter *counter);
int32_t counter_reset(struct counter *counter);
#else
inline struct counter *counter_init(uint32_t index, enum counter_mode mode) {
        HAL_DEFINE_GLOBAL_ARRAY(counter);
        struct counter_generic *p = (struct counter_generic *) HAL_GET_DEV(counter, index);
        if (p == NULL) {
                return NULL;
        }
        return p->ops->counter_init(index, mode);
}
inline int32_t counter_deinit(struct counter *counter) {
        struct counter_generic *p = (struct counter_generic *) counter;
        return p->ops->counter_deinit(counter);
}
inline int64_t counter_getValue(struct counter *counter) {
        struct counter_generic *p = (struct counter_generic *) counter;
        return p->ops->counter_getValue(counter);
}
inline int32_t counter_reset(struct counter *counter) {
        struct counter_generic *p = (struct counter_generic *) counter;
        return p->ops->counter_reset(counter);
}
#endif
 
#endif