rt-thread/bsp/phytium/libraries/standalone/drivers/i2c/fi2c/fi2c.h

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/*
* 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