/*--------------------------------------------------------------------------
 * Routines based on Toulouse University Technology Institute
 * Electronics Engineering Dpt. Hardware
 *
 * Written By - Philippe Latu / philippe.latu(at)linux-france.org
 * $Id: iut_msc1210.h 1142 2007-05-20 16:52:23Z latu $
 * 
 * Copyright (C) 2007  Philippe Latu
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNES0S FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 *---------------------------------------------------------------------------*/

#ifndef __IUT_MSC1210_H
#define __IUT_MSC1210_H

/* Custom types definitions */
typedef unsigned long	uint32;
typedef unsigned int	uint16;
typedef int		int16;
typedef unsigned char	uint8;
typedef signed char	int8;

/* Device addressing
 * Addresses are hardware dependant and should be changed
 * to fit hardware requirements */
__sbit __at (0x80) P0_0;	// p0.0
__sbit __at (0x81) P0_1;	// p0.1
__sbit __at (0x82) P0_2;	// p0.2
__sbit __at (0x83) P0_3;	// p0.3
__sbit __at (0x84) P0_4;	// p0.4
__sbit __at (0x85) P0_5;	// p0.5
__sbit __at (0x86) P0_6;	// p0.6
__sbit __at (0x87) P0_7;	// p0.7
__sbit __at (0x93) CK_OUT;	// p1.3
__sbit __at (0x96) OUT_8;	// p1.6
__sbit __at (0x97) OUT_9;	// p1.7
__sbit __at (0xb2) IN_9;	// p3.2
__sbit __at (0xb3) G_IN;	// p3.3
__sbit __at (0xb4) IN_8;	// p3.4

unsigned int lecture_10bits(void) {

	__idata unsigned int dipswitch = 0;

	G_IN = 0;
	dipswitch = P0;
        G_IN = 1;
	if (P3 & 0x10)
		dipswitch |= 0x100;
	if (P3 & 0x04)
		dipswitch |= 0x200;

	return dipswitch;
}

bit lecture_1bit(unsigned char b) {

	__bit in1bit;

	if (b < 8) {
		G_IN = 0;
		in1bit = (P0 >> b) & 1;
        	G_IN = 1;
	}
	else if (b == 8)
		in1bit = IN_8;
	else if (b == 9)
		in1bit = IN_9;
	else
		in1bit = 0;

	return in1bit;
}

void ecriture_10bits(unsigned int leds) {

	P0 = leds;
	CK_OUT = 0;
	CK_OUT = 1;
	OUT_8 = (leds & 0x100) >> 8;
	OUT_9 = (leds & 0x200) >> 9;
}

void ecriture_1bit(unsigned char b, bit val) {

	if (b < 8) {
		switch (b) {
			case 0:
				P0_0 = val;
				break;
			case 1:
				P0_1 = val;
				break;
			case 2:
				P0_2 = val;
				break;
			case 3:
				P0_3 = val;
				break;
			case 4:
				P0_4 = val;
				break;
			case 5:
				P0_5 = val;
				break;
			case 6:
				P0_6 = val;
				break;
			case 7:
				P0_7 = val;
				break;
		}
		CK_OUT = 0;
		CK_OUT = 1;
	}
	else if (b == 8)
		OUT_8 = val;
	else if (b == 9)
		OUT_9 = val;
}

#endif