/*****************************************************************************/
/*                                                                           */
/*                                 ec65k.h				     */
/*                                                                           */
/*                   EC-65K system specific definitions                      */
/*                                                                           */
/*                                                                           */
/*                                                                           */
/* (C) 2009  Michiel Broek, <mbroek@mbse.eu>                                 */
/*                                                                           */
/*                                                                           */
/* This software is provided 'as-is', without any expressed or implied       */
/* warranty.  In no event will the authors be held liable for any damages    */
/* arising from the use of this software.                                    */
/*                                                                           */
/* Permission is granted to anyone to use this software for any purpose,     */
/* including commercial applications, and to alter it and redistribute it    */
/* freely, subject to the following restrictions:                            */
/*                                                                           */
/* 1. The origin of this software must not be misrepresented; you must not   */
/*    claim that you wrote the original software. If you use this software   */
/*    in a product, an acknowledgment in the product documentation would be  */
/*    appreciated but is not required.                                       */
/* 2. Altered source versions must be plainly marked as such, and must not   */
/*    be misrepresented as being the original software.                      */
/* 3. This notice may not be removed or altered from any source              */
/*    distribution.                                                          */
/*                                                                           */
/*****************************************************************************/



#ifndef _EC65K_H
#define _EC65K_H



/* Check for errors */
#if !defined(__EC65K__)
#  error This module may only be used when compiling for the EC-65K!
#endif



/*****************************************************************************/
/*                                   Data				     */
/*****************************************************************************/

/* Additional key defines, values after <ESC> byte */
#define	CH_F1			0x3B
#define	CH_F2			0x3C
#define	CH_F3			0x3D
#define	CH_F4			0x3E
#define	CH_F5			0x3F
#define	CH_F6			0x40
#define	CH_F7			0x41
#define	CH_F8			0x42
#define	CH_F9			0x43
#define	CH_F10			0x44
#define	CH_PGUP			0x49
#define	CH_PGDN			0x51
#define	CH_END			0x4F
#define	CH_HOME			0x47
#define	CH_INS			0x52

/* Keys without <ESC> */
#define	CH_UP			0x0B
#define	CH_LEFT			0x08
#define	CH_DOWN			0x0A
#define	CH_RIGHT		0x09

/* Color Defines */
#define COLOR_BLACK             0x00
#define	COLOR_BLUE		0x01
#define	COLOR_GREEN		0x02
#define	COLOR_CYAN		0x03
#define	COLOR_RED		0x04
#define	COLOR_MAGENTA		0x05
#define	COLOR_BROWN		0x06
#define	COLOR_GRAY		0x07
#define	COLOR_DARKGRAY		0x08
#define	COLOR_LIGHTBLUE		0x09
#define	COLOR_LIGHTGREEN	0x0a
#define	COLOR_LIGHTCYAN		0x0b
#define	COLOR_LIGHTRED		0x0c
#define	COLOR_LIGHTMAGENTA	0x0d
#define	COLOR_YELLOW		0x0e
#define	COLOR_WHITE             0x0f

/* Characters codes */
#define CH_ENTER        	0x0D
#define CH_ESC          	0x1B
#define CH_DEL          	0x7E   /* back space (delete char to the left) */

/* Valid for charset 4, IBM chars */
#define CH_ULCORNER     	0xDA
#define CH_URCORNER     	0xBF
#define CH_LLCORNER     	0xC0
#define CH_LRCORNER     	0xD9
#define CH_TTEE         	0xC2
#define CH_BTEE         	0xC1
#define CH_LTEE         	0xC3
#define CH_RTEE         	0xB4
#define CH_CROSS        	0xC5


/*****************************************************************************/
/*                                   Code				     */
/*****************************************************************************/

/*
 * Define a structure with the pia register offsets.
 *
 * Note: in _pia.h these are defined but wrong, maybe that one is based
 * on swappped address lines. So we define the structure here but do it
 * a bit different so that it won't conflict if by accident _pia.h also
 * is included.
 */
struct __mc6821 {
    unsigned char   DRA;			/* port A data r/w	*/
    unsigned char   CRA;			/* port A control	*/
    unsigned char   DRB;			/* port B data r/w	*/
    unsigned char   CRB;			/* port B control	*/
};


unsigned char get_ostype (void);
/* Get the machine type. Returns one of the OS codes. */

#include <_6545.h>
#define CRTC	(*(struct __6545*)0xE140)	/* 6845 CRT controller	*/

#define KBDPIA	(*(struct __mc6821*)0xE400)	/* Keyboard PIA		*/
#include <_6551.h>
#define ACIA	(*(struct __6551*)0xE410)	/* ACIA port		*/
#define PRTPIA	(*(struct __mc6821*)0xE420)	/* Centronics port PIA	*/

#define	MOSIP1	(*(struct __mc6821*)0xE118)	/* MOSI IO PIA 1	*/
#define	MOSIP2	(*(struct __mc6821*)0xE11C)	/* MOSI IO PIA 2	*/
#define MOSIP3	(*(struct __mc6821*)0xE110)	/* MOSI IO PIA 3	*/  
#define MOSIP4	(*(struct __mc6821*)0xE114)	/* MOSI IO PIA 4	*/


/* End of ec65k.h */
#endif