GC24001/Hardware/hw_dma_uart.h

#ifndef __HW_UART_H__
#define __HW_UART_H__

#define HW_DMA_UART_NUMBER 2


typedef struct
{
    int speed;      //速度
    int databits;   //数据位
    int stopbits;   //停止位
    int parity;     //奇偶校验位，0表示无，1表示奇，2表示偶
} hw_uart_config;


#define UART_CTRL_RECONFIG 0x0A        //设置串口速度
#define UART_CTRL_SET_SPEED 0x01        //设置串口速度
#define UART_CTRL_SET_RDFIN_TIME 0x02   //设置串口接收完成判断时间
#define UART_CTRL_SET_WRFIN_TIME 0x03   //设置串口发送完成判断时间
#define UART_CTRL_GET_SPEED 0x81        //获取当前速度
#define UART_CTRL_GET_RDFIN_TIME 0x82   //获取当前串口接收完成时间
#define UART_CTRL_GET_WRFIN_TIME 0x83   //获取当前串口写入完成时间
#define UART_CTRL_GET_RDFIN 0x84        //串口接收是否完成，如果完成会返回接收长度
#define UART_CTRL_GET_WRFIN 0x85        //串口发送是否完成


#define hw_dma_uart_read(a,b,c) hw_dma_uart_begin_read(a,b,c)
#define hw_dma_uart_write(a,b,c) hw_dma_uart_begin_write(a,b,c)

void hw_dma_uart_init(int clk);
int hw_dma_uart_control(unsigned char uart_index, char cmd, void *value);
int hw_dma_uart_begin_write(unsigned char uart_index, const char *buffer, int size);
int hw_dma_uart_write_finish(unsigned char uart_index);
int hw_dma_uart_begin_read(unsigned char uart_index,unsigned char *buffer, int size);
int hw_dma_uart_read_finish(unsigned char uart_index);

#endif