arch/x86_64/debug/console.c


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#ifdef DEBUG_CONSOLE
#include "debug/console.h"
#include "lib/printf.h"
#include "../hal/serial_com.h"

static char
s_console_getc(void)
{
#ifdef DEBUG_SERIAL
    char c = serial_com_getc(SERIAL_COM1);
#endif
    serial_com_putc(SERIAL_COM1, c);
    return c;
}

int
debug_console_readinput(char *buf, size_t len)
{
    serial_com_putc(SERIAL_COM1, '>');
    char readc;
    int readw = 0;
    while((readc = s_console_getc()) != 0xD) {
        if(readw > len) break;
        buf[readw++] = readc;
    }
    buf[readw] = 0;
    return readw;
}

void debug_console_start(void)
{
    char input_buffer[128];
    while(1) {
        debug_console_readinput(input_buffer, 128);
        debug_console_parsecmd(input_buffer);
    }
}

#endif