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/* (-lgl
 * 	COHERENT Version 3.2
 * 	Copyright (c) 1982, 1991 by Mark Williams Company.
 * 	All rights reserved. May not be copied without permission.
 -lgl) */
/*
 * kb.h:	Keyboard definitions and constants for user configurable
 *		AT keyboard driver.
 *
 *		Version 1.0,  06/01/91
 */
#ifndef	KB_H
#define	KB_H

/*
 * ASCII Macro Definitions - stolen from <ascii.h>
 */
#define nul	0x00	/* Null			*/
#define soh	0x01	/* Start Of Header	*/
#define stx	0x02	/* Start Of Text	*/
#define etx	0x03	/* End Of Text		*/
#define eot	0x04	/* End Of Transmission	*/
#define enq	0x05	/* Enquiry		*/
#define ack	0x06	/* Acknowledge		*/
#define bel	0x07	/* Bell			*/
#define bs	0x08	/* Backspace		*/
#define ht	0x09	/* Horizontal Tab	*/
#define nl	0x0A	/* New Line (line feed)	*/
#define lf	0x0A	/* Line Feed (newline)	*/
#define vt	0x0B	/* Vertical Tabulation	*/
#define ff	0x0C	/* Form Feed		*/
#define cr	0x0D	/* Carriage Return	*/
#define so	0x0E	/* Stand Out		*/
#define si	0x0F	/* Stand In		*/
#define dle	0x10	/* Data Link Escape	*/
#define dc1	0x11	/* Data Ctrl 1 - XON	*/
#define dc2	0x12	/* Data Ctrl 2		*/
#define dc3	0x13	/* Data Ctrl 3 - XOFF	*/
#define dc4	0x14	/* Data Ctrl 4		*/
#define nak	0x15	/* Negative Acknowledge	*/
#define syn	0x16	/* Synchronization	*/
#define etb	0x17	/* End of Trans. Block	*/
#define can	0x18	/* Cancel		*/
#define em	0x19	/* End of Medium	*/
#define sub	0x1A	/* Substitute		*/
#define esc	0x1B	/* Escape		*/
#define fs	0x1C	/* Form Sep.		*/
#define gs	0x1D	/* Group Sep.		*/
#define rs	0x1E	/* Record Sep.		*/
#define us	0x1F	/* Unit Sep.		*/
#define del	0x7F	/* Delete		*/
#define rub	0x7F	/* Rubout (Delete)	*/

/*
 * special and shift keys
 */
#define	none	0xFF	/* no key value */
#define	scroll	1	/* SCROLL lock key */
#define	num	2	/* NUM lock key */
#define	caps	3	/* CAPS lock key */
#define	lalt	4	/* left ALT key */
#define	ralt	5	/* right ALT key */
#define	lshift	6	/* left SHIFT key */
#define	rshift	7	/* right SHIFT key */
#define	lctrl	8	/* left CTRL key */
#define	rctrl	9	/* right CTRL key */
#define	altgr	10	/* ALT GR. key */

/*
 * flag/mode field definitions
 */
#define	O	0	/* OFF: no special processing */
#define	N	0x01	/* NUM lock applies */
#define	C	0x02	/* CAP lock applies */
#define	F	0x04	/* programmable function key */
#define	S	0x08	/* shift key (from above list) */
/*		0x10	   available */
/*		0x20	   available */
#define	TMODE	0xC0	/* key mode mask (T, M, MB, TMB) */
#define	M	0x00	/* "Make" only */
#define	T	0x40	/* "Typematic" mode */
#define	MB	0x80	/* "Make/Break" mode */
#define	TMB	0xC0	/* "Typematic/Make/Break" mode */

/*
 * function key definitions
 */
#define	reboot	f0	/* reboot system */
#define	f0	0	/* function key 0 */
#define	f1	1	/* function key 1 */
#define	f2	2	/* function key 2 */
#define	f3	3	/* function key 3 */
#define	f4	4	/* function key 4 */
#define	f5	5	/* function key 5 */
#define	f6	6	/* function key 6 */
#define	f7	7	/* function key 7 */
#define	f8	8	/* function key 8 */
#define	f9	9	/* function key 9 */
#define	f10	10	/* function key 10 */
#define	f11	11	/* function key 11 */
#define	f12	12	/* function key 12 */
#define	f13	13	/* function key 13 */
#define	f14	14	/* function key 14 */
#define	f15	15	/* function key 15 */
#define	f16	16	/* function key 16 */
#define	f17	17	/* function key 17 */
#define	f18	18	/* function key 18 */
#define	f19	19	/* function key 19 */
#define	f20	20	/* function key 20 */
#define	f21	21	/* function key 21 */
#define	f22	22	/* function key 22 */
#define	f23	23	/* function key 23 */
#define	f24	24	/* function key 24 */
#define	f25	25	/* function key 25 */
#define	f26	26	/* function key 26 */
#define	f27	27	/* function key 27 */
#define	f28	28	/* function key 28 */
#define	f29	29	/* function key 29 */
#define	f30	30	/* function key 30 */
#define	f31	31	/* function key 31 */
#define	f32	32	/* function key 32 */
#define	f33	33	/* function key 33 */
#define	f34	34	/* function key 34 */
#define	f35	35	/* function key 35 */
#define	f36	36	/* function key 36 */
#define	f37	37	/* function key 37 */
#define	f38	38	/* function key 38 */
#define	f39	39	/* function key 39 */
#define	f40	40	/* function key 40 */
#define	f41	41	/* function key 41 */
#define	f42	42	/* function key 42 */
#define	f43	43	/* function key 43 */
#define	f44	44	/* function key 44 */
#define	f45	45	/* function key 45 */
#define	f46	46	/* function key 46 */
#define	f47	47	/* function key 47 */
#define	f48	48	/* function key 48 */
#define	f49	49	/* function key 49 */
#define	f50	50	/* function key 50 */
#define	f51	51	/* function key 51 */
#define	f52	52	/* function key 52 */
#define	f53	53	/* function key 53 */
#define	f54	54	/* function key 54 */
#define	f55	55	/* function key 55 */
#define	f56	56	/* function key 56 */
#define	f57	57	/* function key 57 */
#define	f58	58	/* function key 58 */
#define	f59	59	/* function key 59 */
#define	f60	60	/* function key 60 */
#define	f61	61	/* function key 61 */

/*
 * table entry definition
 */
typedef	struct	{
	unsigned char	k_key;		/* Scan code set 3 key value */
	unsigned char	k_val[9];	/* key value for each mode */
	unsigned char	k_flags;	/* flags and mode bits */
} KBTBL;

/*
 * Index values for k_val[] array.
 * These are computed in the driver based upon the following weighting:
 *
 *	Shift Keys	bit 0
 *	Control Keys	bit 1
 *	Alt Keys	bit 2
 *	Alt Graphic Key	bit 3
 *
 * Use of the Alt Graphic key ignores other shift modes.
 */
#define	BASE		0
#define	SHIFT		1
#define	CTRL		2
#define	CTRL_SHIFT	3
#define	ALT		4
#define	ALT_SHIFT	5
#define	ALT_CTRL	6
#define	ALT_CTRL_SHIFT	7
#define	ALT_GR		8

/*
 * Keyboard responses to system
 */
#define	K_BREAK		0xF0		/* break code prefix byte */
#define	K_ACK		0xFA		/* Acknowledgement */
#define	K_BAT_OK	0xAA		/* BAT Completion code */
#define	K_BAT_BAD	0xFC		/* BAT Failure code */
#define	K_ECHO_R	0xEE		/* Echo response */
#define	K_DETECT_1	0xFF		/* Key detect error, code set 1 */
#define	K_DETECT_23	0x00		/* Key detect error, code sets 2 & 3 */
#define	K_OVERRUN_1	0xFF		/* Buffer overrun, code set 1 */
#define	K_OVERRUN_23	0x00		/* Buffer overrun, code sets 2 & 3 */
#define	K_RESEND	0xFE		/* Resend prior command */

/*
 * Keyboard commands
 */
#define	K_LED_CMD	0xED		/* Set/reset LEDs */
#define	K_ECHO_CMD	0xEE		/* Echo */
#define	K_SCANCODE_CMD	0xF0		/* Select scan code set */
#define	K_RATE_CMD	0xF3		/* Set typematic rate/delay */
#define	K_ENABLE_CMD	0xF4		/* Enable keyboard */
#define	K_DEFAULT_CMD	0xF6		/* Set defaults */
#define	K_ALL_T_CMD	0xF7		/* Set all keys typematic */
#define	K_ALL_MB_CMD	0xF8		/* Set all keys make/break */
#define	K_ALL_M_CMD	0xF9		/* Set all keys make */
#define	K_ALL_TMB_CMD	0xFA		/* Set all keys typematic/make/break */
#define	K_KEY_T_CMD	0xFB		/* Set key as typematic */
#define	K_KEY_MB_CMD	0xFC		/* Set key as make/break */
#define	K_KEY_M_CMD	0xFD		/* Set key as make */
#define	K_RESEND_CMD	0xFE		/* Resend */
#define	K_RESET_CMD	0xFF		/* Reset keyboard */

/*
 * function key definitions
 * 
 * Struct member k_fnval contains the actual function key values.
 * Entries are delimited by DELIM (0xFF or '\377') to allow NUL characters to
 * be embedded in function strings.
 */
typedef	struct	{
	unsigned char	k_nfkeys;	/* number of function keys */
	unsigned char	k_fnval[];	/* linear array of values */
} FNKEY;

#define	MAX_KEYS	256		/* all that can fit in a char */
#define	MAX_TABLE_SIZE	(MAX_KEYS * sizeof(KBTBL)) /* worst case table size */
#define	MAX_FKEYS	75
#define	MAX_FCHAR	2048		/* default Fn key arena size */
#define	DELIM		0xFF		/* function key delimiter */

#endif
/* end of kb.h */

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