/* * Copyright (c) 2022 OpenLuat & AirM2M * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef __CORE_I2C_H__ #define __CORE_I2C_H__ #include "bsp_common.h" typedef struct { uint8_t Data[2]; }I2C_CommonRegDataStruct; void I2C_GlobalInit(void); /** * @brief i2c主机配置 * * @param I2CID I2C通道号 * @param Speed 速度,只有100000和400000 */ void I2C_MasterSetup(uint8_t I2CID, uint32_t Speed); /* * @brief i2c传输前配置,如果配置和上次一致,则不用设置 * * @param I2CID I2C通道号 * @param ChipAddress I2C设备地址 * @param ChipAddressLen I2C设备地址长度 ,1或者2 * @param CB 完成后回调函数 * @param pParam 完成后回调函数中的pParam */ void I2C_Prepare(uint8_t I2CID, uint16_t ChipAddress, uint8_t ChipAddressLen, CBFuncEx_t CB, void *pParam); /** * @brief i2c主机传输,兼容直接读写和先写寄存器地址后读数据 * * @param I2CID I2C通道号 * @param Operate 操作类型 * I2C_OP_READ_REG = 0, //i2c通用读寄存器,一写一读,自动带start信号 I2C_OP_READ, //i2c通用读,只读 I2C_OP_WRITE, //i2c通用写,只写 * @param RegAddress 寄存器地址的数据缓存,在通用读写时忽略 * @param RegLen 寄存器地址长度,在通用读写时忽略 * @param Data 读写数据缓存,直接使用用户的空间,在完成前不可以释放空间 * @param Len 读写数据长度 * @param Toms 传输单个字节超时时间,单位ms */ void I2C_MasterXfer(uint8_t I2CID, uint8_t Operate, uint8_t *RegAddress, uint32_t RegLen, uint8_t *Data, uint32_t Len, uint16_t Toms); /** * @brief i2c主机传输结果查询 * * @param I2CID I2C通道号 * @param Result 传输结果 =0成功,其他失败,只有return != 0才有效 * @return =0 传输还未完成 其他已完成 */ int I2C_WaitResult(uint8_t I2CID, int32_t *Result); int32_t I2C_BlockWrite(uint8_t I2CID, uint8_t ChipAddress, const uint8_t *Data, uint32_t Len, uint16_t Toms, CBFuncEx_t CB, void *pParam); int32_t I2C_BlockRead(uint8_t I2CID, uint8_t ChipAddress, uint8_t *Reg, uint32_t RegLen, uint8_t *Data, uint32_t Len, uint16_t Toms, CBFuncEx_t CB, void *pParam); #endif