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/* lcd.c */
/* es - Input/Output general purpose board. {{{
 *
 * Copyright (C) 2006 Dufour J�r�my
 *
 * Robot APB Team/Efrei 2004.
 *        Web: http://assos.efrei.fr/robot/
 *      Email: robot AT efrei DOT fr
 *
 * 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.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * }}} */
#include "lcd.h"

#include "modules/twi/twi.h"
#include "modules/proto/proto.h"
#include "modules/utils/utils.h"

uint8_t grub_greeting[32] = "Booting ! Press 1 > NFS 2 > Auto";

// TODO, inline ?
// Prefers 16 char management, and ask the LCD to rotate line...

/* Init communication with the LCD. */
void lcd_init (void)
{
    /* Init twi */
    twi_init (TWI_LCD_ADDR);
}

/* Print something on the LCD */
inline uint8_t lcd_print (uint8_t *string, uint8_t size)
{
    /* Send to the LCD */
    return twi_ms_send (TWI_LCD_ADDR, string, size);
}

/* What key is pressed into the LCD keyboard ? */
uint8_t lcd_key (void)
{
    static uint8_t buffer_read;
    twi_ms_read (TWI_LCD_ADDR, &buffer_read, 1);
    return buffer_read;
}

/* Tell the LCD we have seen the Grub ! */
void lcd_grub_booting (void)
{
    lcd_print (&grub_greeting[16], 16);
    utils_delay_ms (4);
    lcd_print (grub_greeting, 16);
    utils_delay_ms (4);
}