/* * Copyright (C) 2001 MontaVista Software Inc. * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net * * This program is free software; you can redistribute  it and/or modify it * under  the terms of  the GNU General  Public License as published by the * Free Software Foundation;  either version 2 of the  License, or (at your * option) any later version. * *//* #define DEBUG_LED (*(unsigned short*)0xb7ffffc0) */// #define DEBUG_LED (*(unsigned char*)(0xb9010000))int DEBUG_LED;#include "uart16550.h"#include "printf.h"void uart_test(){    int diff = 'A' - 'a';    DEBUG_LED  = 0x11;#if 0    Uart16550Init(9600,                   UART16550_DATA_8BIT,                  UART16550_PARITY_NONE,                  UART16550_STOP_1BIT);#endif    DEBUG_LED  = 0x12;    Uart16550Put('\r');    Uart16550Put('\n');    Uart16550Put('h');    Uart16550Put('e');    Uart16550Put('l');    Uart16550Put('l');    Uart16550Put('o');    Uart16550Put('\r');    Uart16550Put('\n');    DEBUG_LED  = 0x14;    for(;;) {        int c = Uart16550GetPoll();        Uart16550Put(c);        c += diff;        Uart16550Put(c);        Uart16550Put('\r');        Uart16550Put('\n');    } }void printf_test(){    printf("hello through printf!\n");    printf("test string: %s\n", "test string");    printf("test int: %d\n", -555);    printf("test binary: %b\n", 555);    printf("test hex: %08x\n", 555);}