Subversion Repositories HelenOS

/*
 * Copyright (c) 2006 Ondrej Palkovsky
 * Copyright (c) 2008 Martin Decky
 * Copyright (c) 2008 Pavel Rimsky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @defgroup serial Serial console
 * @brief    Serial console services (putc, puts, clear screen, cursor goto,...)
 * @{
 */ 

/** @file
 */

#include <stdio.h>

#include "serial_console.h"

#define MAX_CONTROL 20

static uint32_t width;
static uint32_t height;
static putc_function_t putc_function;

void serial_puts(char *str)
{
    while (*str)
        putc_function(*(str++));
}

void serial_goto(const unsigned int row, const unsigned int col)
{
    if ((row > height) || (col > width))
        return;
    
    char control[20];
    snprintf(control, 20, "\033[%u;%uf", row + 1, col + 1);
    serial_puts(control);
}

void serial_clrscr(void)
{
    serial_puts("\033[2J");
}

void serial_scroll(int i)
{
    if (i > 0) {
        serial_goto(height - 1, 0);
        while (i--)
            serial_puts("\033D");
    } else if (i < 0) {
        serial_goto(0, 0);
        while (i++)
            serial_puts("\033M");
    }
}

void serial_set_style(const unsigned int mode)
{
    char control[MAX_CONTROL];
    snprintf(control, MAX_CONTROL, "\033[%um", mode);
    serial_puts(control);
}

void serial_cursor_disable(void)
{
    serial_puts("\033[?25l");
}

void serial_cursor_enable(void)
{
    serial_puts("\033[?25h");
}

void serial_console_init(putc_function_t putc_fn, uint32_t w, uint32_t h)
{
    width = w;
    height = h;
    putc_function = putc_fn;
}

/** 
 * @}
 */