/*      $OpenBSD: gsckbcreg.h,v 1.1 2003/01/31 22:50:19 miod Exp $      */
/*
 * Copyright (c) 2003, Miodrag Vallat.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * 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 MIND,
 * 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.
 */

/*
 * Register definitions for the GSC PS/2 compatible keyboard/mouse ports.
 *
 * These definitions attempt to match <dev/ic/i8042reg.h> names although the
 * actual wiring is different.
 */

#define KBSTATP         12      /* controller status port (I) */
#define KBS_DIB         0x01    /* data in buffer */
#define KBS_OCMD        0x02    /* output buffer has command */
#define KBS_PERR        0x04    /* parity error */
#define KBS_TERR        0x08    /* transmission error */

#define KBCMDP          8       /* controller port (O) */
#define KBCP_ENABLE     0x01    /* enable device */
#define KBCP_DIAG       0x20    /* diagnostic mode control */

#define KBDATAP         4       /* data port (I) */
#define KBOUTP          4       /* data port (O) */

#define KBIDP           0       /* id port (I) */
#define ID_KBD          0       /* slot is a keyboard port */
#define ID_MOUSE        1       /* slot is a mouse port */

#define KBRESETP        0       /* reset port (O) */

#define KBMAPSIZE       16      /* size to bus_space_map() */

/*
 * Various command definitions not provided by the existing pckbc code.
 */

#define KBC_ID          0xF2    /* get device identifier */
#define KBR_MOUSE_ID    0x00    /* mouse type */
#define KBR_KBD_ID1     0xAB    /* keyboard type */
#define KBR_KBD_ID2     0x83

#define KB_MAX_RETRANS  5       /* maximum number of command retrans attempts */