Subversion Repositories 1g_ethernet_dpi

#include "xil_types.h"

#include "wb_uart_regs.h"

#include "wb_uart.h"

u32 u32_wb_uart_base;

void wb_uart_init(int base)

{

    u32_wb_uart_base = (u32)base;

}

/* sync */

int  wb_uart_read_s(void)

{

    int rxd;

    IORD_WB_UART_STS(u32_wb_uart_base);

    while (WB_UART_RX_EF(u32_wb_uart_base));

    rxd = (IORD_WB_UART_DATA(u32_wb_uart_base) & 0xFF);

    return (rxd);

}

void wb_uart_write_s(int data)

{

    IORD_WB_UART_STS(u32_wb_uart_base);

    while (WB_UART_TX_BUSY(u32_wb_uart_base));

    IOWR_WB_UART_DATA(u32_wb_uart_base, data);

}

/* async */

int wb_uart_read_a(void)

{

    if (WB_UART_RX_EF(u32_wb_uart_base)) {

        return -1;

    }

    else {

        int rxd = IORD_WB_UART_DATA(u32_wb_uart_base) & 0xFF;

        return (rxd);

    }

}

int wb_uart_write_a(int data)

{

    if (WB_UART_TX_BUSY(u32_wb_uart_base)) {

        return -1;

    } else {

        IOWR_WB_UART_DATA(u32_wb_uart_base, data);

        return 0;

    }

}