/* * Copyright : (C) 2022 Phytium Information Technology, Inc. * All Rights Reserved. * * This program is OPEN SOURCE software: you can redistribute it and/or modify it * under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd, * either version 1.0 of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the Phytium Public License for more details. * * * FilePath: fi2c.h * Date: 2022-02-10 14:53:42 * LastEditTime: 2022-02-18 08:37:04 * Description:  This files is for * * Modify History: * Ver   Who        Date         Changes * ----- ------     --------    -------------------------------------- */ #ifndef DRIVERS_I2C_FI2C_H #define DRIVERS_I2C_FI2C_H #ifdef __cplusplus extern "C" { #endif /***************************** Include Files *********************************/ #include "ftypes.h" #include "fassert.h" #include "ferror_code.h" #include "sdkconfig.h" /************************** Constant Definitions *****************************/ #define FI2C_SUCCESS FT_SUCCESS #define FI2C_ERR_INVAL_PARM FT_MAKE_ERRCODE(ErrModBsp, ErrBspI2c, 1) #define FI2C_ERR_NOT_READY FT_MAKE_ERRCODE(ErrModBsp, ErrBspI2c, 2) #define FI2C_ERR_TIMEOUT FT_MAKE_ERRCODE(ErrModBsp, ErrBspI2c, 3) #define FI2C_ERR_NOT_SUPPORT FT_MAKE_ERRCODE(ErrModBsp, ErrBspI2c, 4) #define FI2C_ERR_INVAL_STATE FT_MAKE_ERRCODE(ErrModBsp, ErrBspI2c, 5) /* add up new error code above and plust FI2C_ERR_CODE_MAX by ONE*/ #define FI2C_ERR_CODE_MAX FT_MAKE_ERRCODE(ErrModBsp, ErrBspI2c, 6) #define FI2C_ERR_CODE_PREFIX FI2C_ERR_CODE_MAX & (FT_ERRCODE_SYS_MODULE_MASK | FT_ERRCODE_SUB_MODULE_MASK) #define FI2C_NUM_OF_ERR_CODE FI2C_ERR_CODE_MAX & FT_ERRCODE_TAIL_VALUE_MASK /* * status codes */ #define STATUS_IDLE 0x0 #define STATUS_WRITE_IN_PROGRESS 0x1 #define STATUS_READ_IN_PROGRESS 0x2 enum { FI2C_MASTER = 0, /* i2c主设备 */ FI2C_SLAVE /* i2c从设备 */ }; enum { FI2C_SPEED_STANDARD_RATE = 100000, /* 100kb/s */ FI2C_SPEED_FAST_RATE = 400000 /* 400kb/s */ }; enum { FI2C_EVT_MASTER_TRANS_ABORTED = 0,/*master模式传输出错回调函数事件值*/ FI2C_EVT_MASTER_READ_DONE, /*master模式接收完成回调函数事件值*/ FI2C_EVT_MASTER_WRITE_DONE, /*master模式发送完成回调函数事件值*/ FI2C_MASTER_INTR_EVT_NUM }; /* master mode evt */ enum/*slave模式回调函数事件值*/ { FI2C_EVT_SLAVE_READ_REQUESTED = 0, /*slave收到主机读取内容的请求*/ FI2C_EVT_SLAVE_WRITE_REQUESTED, /*slave收到主机发送的写请求*/ FI2C_EVT_SLAVE_READ_PROCESSED, /*在Slave发送模式下，发送完数据的最后一个字节后，在规定时间内没有收到 Master 端的回应*/ FI2C_EVT_SLAVE_WRITE_RECEIVED, /*Slave收到主机发送的数据，需要存下*/ FI2C_EVT_SLAVE_STOP, /*I2C总线接口上是否产生了STOP。与控制器工作在Master模式还是 Slave 模式无关。*/ FI2C_SLAVE_INTR_EVT_NUM }; /* slave mode evt */ /**************************** Type Definitions *******************************/ typedef struct { u32 instance_id; /* Device instance id */ uintptr base_addr; /* Device base address */ u32 irq_num; /* Device intrrupt id */ u32 irq_prority; /* Device intrrupt priority */ u32 ref_clk_hz; /* Input reference clock frequency in Hz */ u32 work_mode; /* Device work mode Slave or Master */ u32 slave_addr; /*Master mode Slave Address writing/reading to/from ,Slave mode set local address*/ boolean use_7bit_addr; /* Slave in-chip address offset in 7bit or 10bit */ u32 speed_rate; /* I2C speed rate */ } FI2cConfig; /* Device configure setting */ typedef void (*FI2cEvtHandler)(void *instance_p, void *param); typedef struct { /* data */ const void *data_buff; u32 tx_total_num; volatile u32 tx_cnt; u32 flag;/* CMD BIT(8), STOP BIT(9) and RESTART BIT(10) Generation */ } FI2cFrameTX; typedef struct { /* data */ void *data_buff; u32 rx_total_num; volatile u32 rx_cnt; } FI2cFrameRX; typedef struct { FI2cConfig config; /* Current active configs */ u32 is_ready; /* Device is initialized and ready */ volatile u32 status; FI2cFrameTX txframe; FI2cFrameRX rxframe; /** only apply to master device **/ /* Master intrrupt handler */ FI2cEvtHandler master_evt_handlers[FI2C_MASTER_INTR_EVT_NUM]; /** only apply to slave device **/ /* Slave intrrupt handler */ FI2cEvtHandler slave_evt_handlers[FI2C_SLAVE_INTR_EVT_NUM]; } FI2c; /* Device instance */ /************************** Variable Definitions *****************************/ /***************** Macros (Inline Functions) Definitions *********************/ /************************** Function Prototypes ******************************/ /* fi2c_sinit.c */ /* 获取I2C驱动的默认配置参数 */ const FI2cConfig *FI2cLookupConfig(u32 instance_id); /* fi2c.c */ /* 完成I2C驱动实例的初始化，使之可以使用*/ FError FI2cCfgInitialize(FI2c *instance_p, const FI2cConfig *cofig_p); /* 完成I2C驱动实例去使能，清零实例数据 */ void FI2cDeInitialize(FI2c *instance_p); /* 获取I2C模块错误码对应的错误信息 */ const char *FI2cErrorToMessage(FError error); /* fi2c_master.c */ /* I2C主机读，阻塞直到完成读操作或失败 */ FError FI2cMasterReadPoll(FI2c *instance_p, u32 mem_addr, u8 mem_byte_len, u8 *buf_p, u32 buf_len); /*I2C主机读，接收中断读操作或者失败 */ FError FI2cMasterReadIntr(FI2c *instance_p, u32 mem_addr, u8 mem_byte_len, u8 *buf_p, u32 buf_len); /* I2C主机写，中断发送直到完成写操作或失败 */ FError FI2cMasterWriteIntr(FI2c *instance_p, u32 mem_addr, u8 mem_byte_len, const u8 *buf_p, u32 buf_len); /* I2C主机写，阻塞直到完成写操作或失败 */ FError FI2cMasterWritePoll(FI2c *instance_p, u32 mem_addr, u8 mem_byte_len, const u8 *buf_p, u32 buf_len); /* 获取I2C的中断值*/ u32 FI2cGetIntr(FI2c *instance_p); /* 设置I2C主机的中断 */ FError FI2cMasterSetupIntr(FI2c *instance_p, u32 mask); /* 主机模式中断服务函数 */ void FI2cMasterIntrHandler(s32 vector, void *param); /* 注册I2C主机中断事件函数 */ void FI2cMasterRegisterIntrHandler(FI2c *instance_p, u32 evt, FI2cEvtHandler handler); /* 设置I2C从机的中断 */ FError FI2cSlaveSetupIntr(FI2c *instance_p); /* 从机模式中断服务函数 */ void FI2cSlaveIntrHandler(s32 vector, void *param); /* 注册I2C从机中断事件函数 */ void FI2cSlaveRegisterIntrHandler(FI2c *instance_p, u32 evt, FI2cEvtHandler handler); #ifdef __cplusplus } #endif #endif