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56 lines
2.4 KiB
56 lines
2.4 KiB
4 weeks ago
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/*
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* modbus_port.h
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*
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* Change Logs:
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* Date Author Notes
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* 2024-04-02 qiyongzhong first version
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*/
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#ifndef __MODBUS_PORT_H__
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#define __MODBUS_PORT_H__
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#include "modbus_backend.h"
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#define MB_ASSERT(x) //ASSERT(x)
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#define MB_WEAK __attribute__((weak))
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#if defined(MB_USING_PORT_RTT)
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#include "rtthread.h"
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#define MB_PRINTF rt_kprintf
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#elif defined(MB_USING_PORT_LINUX)
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#include <stdio.h>
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#define MB_PRINTF printf
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#else
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#define MB_PRINTF
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#endif
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long long mb_port_get_ms(void);//获取毫秒时间
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void mb_port_delay_ms(int tmo_ms);//系统延时
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#ifdef MB_USING_RTU_BACKEND
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void * mb_port_rtu_open(const mb_backend_param_t *param);//打开, 成功返回实例指针或文件标识, 错误返回NULL
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int mb_port_rtu_close(void *hinst);//关闭, 成功返回0, 错误返回-1
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int mb_port_rtu_read(void *hinst, u8 *buf, int bufsize);//接收数据, 返回接收到的数据长度, 0表示超时, 错误返回-1
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int mb_port_rtu_write(void *hinst, u8 *buf, int size);//发送数据, , 返回成功发送的数据长度, 错误返回-1
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int mb_port_rtu_flush(void *hinst);//清空接收缓存, 成功返回0, 错误返回-1
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#endif
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#ifdef MB_USING_TCP_BACKEND
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void * mb_port_tcp_open(const mb_backend_param_t *param);//打开, 成功返回实例指针或文件标识, 错误返回NULL
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int mb_port_tcp_close(void *hinst);//关闭, 成功返回0, 错误返回-1
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int mb_port_tcp_read(void *hinst, u8 *buf, int bufsize);//接收数据, 返回接收到的数据长度, 0表示超时, 错误返回-1
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int mb_port_tcp_write(void *hinst, u8 *buf, int size);//发送数据, , 返回成功发送的数据长度, 错误返回-1
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int mb_port_tcp_flush(void *hinst);//清空接收缓存, 成功返回0, 错误返回-1
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#endif
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#ifdef MB_USING_SLAVE
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int mb_port_read_disc(u16 addr, u8 *pbit);//读离散量输入, 返回 : 0-成功, -2-地址错误
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int mb_port_read_coil(u16 addr, u8 *pbit);//读线圈, 返回 : 0-成功, -2-地址错误
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int mb_port_write_coil(u16 addr, u8 bit);//写线圈, 返回 : 0-成功, -2-地址错误, -4-设备故障
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int mb_port_read_input(u16 addr, u16 *preg);//读输入寄存器, 返回 : 0-成功, -2-地址错误
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int mb_port_read_hold(u16 addr, u16 *preg);//读保持寄存器, 返回 : 0-成功, -2-地址错误
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int mb_port_write_hold(u16 addr, u16 reg);//写保持寄存器, 返回 : 0-成功, -2-地址错误, -3-值非法, -4-设备故障
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#endif
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#endif
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