i2c.h

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/* SPDX-License-Identifier: MIT */
/*
 * Author: Andreas Werner <kernel@andy89.org>
 * Date: 2020
 */
#ifndef I2C_H_
#define I2C_H_
#include <stdint.h>
#include <stdbool.h>
#include <system.h>
#include <FreeRTOS.h>
#include <semphr.h>
#include <hal.h>
struct i2c;
enum i2c_mode {
        I2C_SM,
        I2C_FM,
        I2C_FMP,
        I2C_HSM,
        i2C_UFM,
};
#ifdef CONFIG_I2C_MULTI
 
struct i2c_ops {
        struct i2c *(*i2c_init)(uint32_t index, enum i2c_mode mode);
        int32_t (*i2c_deinit)(struct i2c *i2c);
        int32_t (*i2c_send)(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len, TickType_t waittime);
        int32_t (*i2c_recv)(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len, TickType_t waittime);
        int32_t (*i2c_transfer)(struct i2c *i2c, uint16_t id, uint8_t *sendData, uint32_t sendLen, uint8_t *recvData, uint32_t recvLen, TickType_t waittime);
        int32_t (*i2c_sendISR)(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len);
        int32_t (*i2c_recvISR)(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len);
        int32_t (*i2c_transferISR)(struct i2c *i2c, uint16_t id, uint8_t *sendData, uint32_t sendLen, uint8_t *recvData, uint32_t recvLen);
};
#endif
 
struct i2c_generic {
        bool init;
#ifdef CONFIG_INSTANCE_NAME
 
        const char *name;
#endif
#ifdef CONFIG_I2C_THREAD_SAVE
 
        OS_DEFINE_MUTEX_RECURSIVE(lock);
#endif
#ifdef CONFIG_I2C_MULTI
 
        const struct i2c_ops *ops;
#endif
};
#ifndef CONFIG_I2C_MULTI
 
struct i2c *i2c_init(uint32_t index, enum i2c_mode mode);
 
int32_t i2c_deinit(struct i2c *i2c);
int32_t i2c_send(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len, TickType_t waittime);
int32_t i2c_recv(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len, TickType_t waittime);
int32_t i2c_transfer(struct i2c *i2c, uint16_t id, uint8_t *sendData, uint32_t sendLen, uint8_t *recvData, uint32_t recvLen, TickType_t waittime);
int32_t i2c_sendISR(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len);
int32_t i2c_recvISR(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len);
int32_t i2c_transferISR(struct i2c *i2c, uint16_t id, uint8_t *sendData, uint32_t sendLen, uint8_t *recvData, uint32_t recvLen);
 
#else
inline struct i2c *i2c_init(uint32_t index, enum i2c_mode mode) {
        HAL_DEFINE_GLOBAL_ARRAY(i2c);
        struct i2c_generic *a = (struct i2c_generic *) HAL_GET_DEV(i2c, index);
        if (a == NULL) {
                return NULL;
        }
        return a->ops->i2c_init(index, mode);
}
inline int32_t i2c_deinit(struct i2c *i2c) {
        struct i2c_generic *a = (struct i2c_generic *) i2c;
        return a->ops->i2c_deinit(i2c);
}
inline int32_t i2c_send(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len, TickType_t waittime) {
        struct i2c_generic *a = (struct i2c_generic *) i2c;
        return a->ops->i2c_send(i2c, id, data, len, waittime);
}
inline int32_t i2c_recv(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len, TickType_t waittime) {
        struct i2c_generic *a = (struct i2c_generic *) i2c;
        return a->ops->i2c_recv(i2c, id, data, len, waittime);
}
inline int32_t i2c_transfer(struct i2c *i2c, uint16_t id, uint8_t *sendData, uint32_t sendLen, uint8_t *recvData, uint32_t recvLen, TickType_t waittime) {
        struct i2c_generic *a = (struct i2c_generic *) i2c;
        return a->ops->i2c_transfer(i2c, id, sendData, sendLen, recvData, recvLen, waittime);
}
inline int32_t i2c_sendISR(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len) {
        struct i2c_generic *a = (struct i2c_generic *) i2c;
        return a->ops->i2c_sendISR(i2c, id, data, len);
}
inline int32_t i2c_recvISR(struct i2c *i2c, uint16_t id, uint8_t *data, uint32_t len) {
        struct i2c_generic *a = (struct i2c_generic *) i2c;
        return a->ops->i2c_recvISR(i2c, id, data, len);
}
inline int32_t i2c_transferISR(struct i2c *i2c, uint16_t id, uint8_t *sendData, uint32_t sendLen, uint8_t *recvData, uint32_t recvLen) {
        struct i2c_generic *a = (struct i2c_generic *) i2c;
        return a->ops->i2c_transferISR(i2c, id, sendData, sendLen, recvData, recvLen);
}
#endif
 
#endif