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/*

 * Project: S.Ha.R.K.

 *

 * Coordinators:

 *   Giorgio Buttazzo    <giorgio@sssup.it>

 *   Paolo Gai           <pj@gandalf.sssup.it>

 *

 * Authors     :

 *   Paolo Gai           <pj@gandalf.sssup.it>

 *   Massimiliano Giorgi <massy@gandalf.sssup.it>

 *   Luca Abeni          <luca@gandalf.sssup.it>

 *   (see the web pages for full authors list)

 *

 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)

 *

 * http://www.sssup.it

 * http://retis.sssup.it

 * http://shark.sssup.it

 */

/**

 ------------

 CVS :        $Id: 8042.h,v 1.1 2003-03-24 10:54:16 pj Exp $

 File:        $File$

 Revision:    $Revision: 1.1 $

 Last update: $Date: 2003-03-24 10:54:16 $

 ------------

 8042.h

 Interface between high level drivers

 and the 8042 keyboard and PS/2 mouse controller

 Revision:    1.0

 Last update: 22/Mar/1999

 Created by Massimiliano Giorgi, modified by Paolo Gai to support the

 kernel 4.0.0

**/

/*

 * Copyright (C) 2000 Paolo Gai

 *

 * 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

 *

 */

#ifndef __8042_H__

#define __8042_H__

#include "ll/sys/cdefs.h"

__BEGIN_DECLS

#define C8042_KEYBOARDIRQ  1

#define C8042_PS2IRQ      12

/*

 * init, enable, disable, get data for the keyboard

 */

int C8042_keyboardinit(PID task);

int C8042_keyboarddisable(void);

int C8042_keyboardenable(void);

int C8042_keyboardget(BYTE *data,BYTE access);

/*

 * init, enable, disable, get data for the ps/2 mouse (auxiliary port)

 */

int C8042_auxinit(PID task);

int C8042_auxportdisable(void);

int C8042_auxportenable(void);

int C8042_auxget(BYTE *data,BYTE access);

int C8042_auxend(void);

/* test if there is a PS/2 mouse on the aux port */

int C8042_ps2mousepresent(void);

/*

 * keyboard led controll

 */

void C8042_keyboardleds(BYTE numlock, BYTE cps, BYTE scrolllock);

/*

 *

 * from Linux OS kernel 2.2.2

 * (see GPL license)

 * with some modification

 */

/*

 *      Keyboard Controller Registers

 */

#define KBD_STATUS_REG          0x64    /* Status register (R) */

#define KBD_CNTL_REG            0x64    /* Controller command register (W) */

#define KBD_DATA_REG            0x60    /* Keyboard data register (R/W) */

/*

 *      Keyboard Controller Commands

 */

#define KBD_CCMD_READ_MODE      0x20    /* Read mode bits */

#define KBD_CCMD_WRITE_MODE     0x60    /* Write mode bits */

#define KBD_CCMD_GET_VERSION    0xA1    /* Get controller version */

#define KBD_CCMD_MOUSE_DISABLE  0xA7    /* Disable mouse interface */

#define KBD_CCMD_MOUSE_ENABLE   0xA8    /* Enable mouse interface */

#define KBD_CCMD_TEST_MOUSE     0xA9    /* Mouse interface test */

#define KBD_CCMD_SELF_TEST      0xAA    /* Controller self test */

#define KBD_CCMD_KBD_TEST       0xAB    /* Keyboard interface test */

#define KBD_CCMD_KBD_DISABLE    0xAD    /* Keyboard interface disable */

#define KBD_CCMD_KBD_ENABLE     0xAE    /* Keyboard interface enable */

#define KBD_CCMD_WRITE_AUX_OBUF 0xD3    /* Write to output buffer as if

                                           initiated by the auxiliary device */

#define KBD_CCMD_WRITE_MOUSE    0xD4    /* Write the following byte to the mouse */

/* added by me (MG) */

#define KBD_CCMD_GET_MODE       0xCA    /* Get controller mode (AT or PS/2) */

#define KBD_CREPLY_PS2MODE      0x01    /* PS2 mode */

#define KBD_CREPLY_ATMODE       0x00    /* AT mode */

#define KBD_CREPLY_GETMODEMASK  0x01    /* mask value for CCMD_GET_MODE */

/*

 *      Keyboard Commands

 */

#define KBD_CMD_SET_LEDS        0xED    /* Set keyboard leds */

#define KBD_CMD_SET_RATE        0xF3    /* Set typematic rate */

#define KBD_CMD_ENABLE          0xF4    /* Enable scanning */

#define KBD_CMD_DISABLE         0xF5    /* Disable scanning */

#define KBD_CMD_RESET           0xFF    /* Reset */

/* added by me (MG) */

#define KBD_CMD_SET_ALL_TYPEMATIC 0xF7  /* Set all key typematic */

#define KBD_LED_NUMLOCK         0x02

#define KBD_LED_CAPSLOCK        0x04

#define KBD_LED_SCROLLLOCK      0x01

#define KBD_LED_MASK            0x07

/*

 *      Keyboard Replies

 */

#define KBD_REPLY_POR           0xAA    /* Power on reset */

#define KBD_REPLY_ACK           0xFA    /* Command ACK */

#define KBD_REPLY_RESEND        0xFE    /* Command NACK, send the cmd again */

/* added by me (MG) */

#define KBD_REPLY_KISTOK        0x00    /* Keyboard Interface Self Test OK */

#define KBD_REPLY_CSTOK         0x55    /* Controller self test OK */

#define KBD_REPLY_MISTOK        0x00    /* Mouse Interface Self Test OK */

/*

 *      Status Register Bits

 */

#define KBD_STAT_OBF            0x01    /* Keyboard output buffer full */

#define KBD_STAT_IBF            0x02    /* Keyboard input buffer full */

#define KBD_STAT_SELFTEST       0x04    /* Self test successful */

#define KBD_STAT_CMD            0x08    /* Last write was a command write (0=data) */

#define KBD_STAT_UNLOCKED       0x10    /* Zero if keyboard locked */

#define KBD_STAT_MOUSE_OBF      0x20    /* Mouse output buffer full */

#define KBD_STAT_GTO            0x40    /* General receive/xmit timeout */

#define KBD_STAT_PERR           0x80    /* Parity error */

#define AUX_STAT_OBF (KBD_STAT_OBF | KBD_STAT_MOUSE_OBF)

/*

 *      Controller Mode Register Bits

 */

#define KBD_MODE_KBD_INT        0x01    /* Keyboard data generate IRQ1 */

#define KBD_MODE_MOUSE_INT      0x02    /* Mouse data generate IRQ12 */

#define KBD_MODE_SYS            0x04    /* The system flag (?) */

#define KBD_MODE_NO_KEYLOCK     0x08    /* The keylock doesn't affect the keyboard if set */

#define KBD_MODE_DISABLE_KBD    0x10    /* Disable keyboard interface */

#define KBD_MODE_DISABLE_MOUSE  0x20    /* Disable mouse interface */

#define KBD_MODE_KCC            0x40    /* Scan code conversion to PC format */

#define KBD_MODE_RFU            0x80

/*

 *      Mouse Commands

 */

#define AUX_SET_RES             0xE8    /* Set resolution */

#define AUX_SET_SCALE11         0xE6    /* Set 1:1 scaling */

#define AUX_SET_SCALE21         0xE7    /* Set 2:1 scaling */

#define AUX_GET_SCALE           0xE9    /* Get scaling factor */

#define AUX_SET_STREAM          0xEA    /* Set stream mode */

#define AUX_SET_SAMPLE          0xF3    /* Set sample rate */

#define AUX_ENABLE_DEV          0xF4    /* Enable aux device */

#define AUX_DISABLE_DEV         0xF5    /* Disable aux device */

#define AUX_RESET               0xFF    /* Reset aux device */

#define AUX_ACK                 0xFA    /* Command byte ACK. */

#define AUX_BUF_SIZE            2048    /* This might be better divisible by

                                           three to make overruns stay in sync

                                           but then the read function would

                                           need

                                           */

__END_DECLS

#endif