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118 lines
3.8 KiB
118 lines
3.8 KiB
#ifndef __I2C_HELPER_H
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#define __I2C_HELPER_H
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/**
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* 封装 Master模式
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "i2c.h"
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#include <stdlib.h>
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/* 回调函数，将数据返回上层 */
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typedef void (*it_callback)(void *obj,uint8_t *buf, uint32_t buf_size );
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/* 由于可能存在多个外设，考虑将 事件类型封装在helper, 事件定义初始化不必放这里*/
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typedef enum
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{
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I2C_HELPER_Event_READY, /*!< Startup finished. */
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I2C_HELPER_Event_INIT,
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I2C_HELPER_Event_INIT_SUCCESS,
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I2C_HELPER_Event_TRANS_ONLY,
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I2C_HELPER_Event_TRANS_FOR_DATA,
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I2C_HELPER_Event_DATA_RCV,
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} I2C_HELPER_Event_TypeDef;
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typedef enum
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{
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I2C_HELPER_TRANS_POLLING,
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I2C_HELPER_TRANS_IT,
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I2C_HELPER_TRANS_DMA
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}I2C_HELPER_TRANS_TypeDef;
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typedef enum
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{
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I2C_HELPER_RCV_POLLING,
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I2C_HELPER_RCV_IT,
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I2C_HELPER_RCV_DMA
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}I2C_HELPER_RCV_TypeDef;
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typedef enum
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{
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I2C_HELPER_MODE_MASTER,
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I2C_HELPER_MODE_SLAVE
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}I2C_HELPER_MODE_TypeDef;
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typedef struct
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{
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I2C_HandleTypeDef *hi2c;
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uint8_t i2c_write_address;
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uint8_t i2c_read_address;
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I2C_HELPER_TRANS_TypeDef trans_type; /* 0 :polling, 1: IT 2: DMA*/
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I2C_HELPER_RCV_TypeDef rcv_type; /* 0 :polling, 1: IT 2: DMA*/
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I2C_HELPER_MODE_TypeDef mode;
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uint8_t *trans_buf;
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volatile uint32_t trans_size;
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volatile uint32_t trans_data_con;
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uint8_t *receive_buf;
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volatile uint32_t receive_size;
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volatile uint8_t receive_data_con;
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// volatile uint8_t receive_buf_con;
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// uint32_t receive_buf_half_len;
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// uint8_t half_flag; /*0 : 未半满， 1：半满， 2： 半满已经处理*/
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// volatile Uart_Status_TypeDef status; /* 发送状态 0: ready , 1：正在发送 busy，2：发送ok，*/
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void * obj;
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it_callback callback;
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}I2CHelper_TypeDef;
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I2CHelper_TypeDef * I2CHelper_Init( );
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void I2CHelper_Set_Hi2c( I2CHelper_TypeDef *i2chelper, I2C_HandleTypeDef * hi2c );
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void I2CHelper_Set_Mode( I2CHelper_TypeDef *i2chelper, I2C_HELPER_MODE_TypeDef mode );
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void I2CHelper_Set_Trans_Type( I2CHelper_TypeDef *i2chelper, I2C_HELPER_TRANS_TypeDef trans_type );
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void I2CHelper_Set_Rcv_Type( I2CHelper_TypeDef *i2chelper, I2C_HELPER_RCV_TypeDef rcv_type );
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// void I2CHelper_Set_timeout( I2CHelper_TypeDef *i2chelper, uint32_t timeout_ms );
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int I2CHelper_Set_callback_func_obj( I2CHelper_TypeDef *i2chelper, void * obj, it_callback callback );
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void I2CHelper_Set_rcv_buf( I2CHelper_TypeDef *i2chelper, uint8_t *buf, uint32_t buf_size );
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void I2CHelper_Set_Trans_Buf( I2CHelper_TypeDef *i2chelper, uint8_t *buf, uint32_t buf_size );
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int I2CHelper_Write( I2CHelper_TypeDef *i2chelper, uint8_t * buf, uint16_t size);
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int I2CHelper_Read(I2CHelper_TypeDef *i2chelper, uint8_t * buf, uint16_t size);
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void I2CHelper_Snd_Cplt_Callback( );
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void I2CHelper_Rcv_Cplt_Callback( );
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// int I2CHelper_Flags_Set(I2CHelper_TypeDef *i2chelper, I2C_HELPER_Event_TypeDef evt_type );
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// int I2CHelper_Flags_Clear(I2CHelper_TypeDef *i2chelper, I2C_HELPER_Event_TypeDef evt_type );
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// int I2CHelper_Flags_Wait(I2CHelper_TypeDef *i2chelper, I2C_HELPER_Event_TypeDef evt_type );
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// void I2CHelper_Set_GPIO_For_Trans_Cplt( I2CHelper_TypeDef *i2chelper );
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// void I2CHelper_Rcv_Cplt_Callback( I2CHelper_TypeDef *i2chelper );
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// void I2CHelper_Rcv_Idle_Callback( I2CHelper_TypeDef *i2chelper );
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// void I2CHelper_Rcv_DMA_Half_Callback( I2CHelper_TypeDef *i2chelper );
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int I2CHelper_copy( I2CHelper_TypeDef *i2chelper, uint8_t *buf, uint32_t buf_size );
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int I2CHelper_isbusy( I2CHelper_TypeDef *i2chelper );
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void I2CHelper_error( I2CHelper_TypeDef *i2chelper );
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// uint16_t Get_Crc16(const char *buf, uint16_t len);
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// uint8_t Check_Crc16(uint8_t *buf, uint16_t length);
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#ifdef __cplusplus
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}
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#endif
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#endif
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