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Annotation of prex/dev/i386/pc/kmc.h, Revision 1.1

1.1     ! nbrk        1: /*
        !             2:  * Copyright (c) 2005, Kohsuke Ohtani
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. Neither the name of the author nor the names of any co-contributors
        !            14:  *    may be used to endorse or promote products derived from this software
        !            15:  *    without specific prior written permission.
        !            16:  *
        !            17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
        !            18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
        !            21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            27:  * SUCH DAMAGE.
        !            28:  */
        !            29:
        !            30: #ifndef _KMC_H
        !            31: #define _KMC_H
        !            32: /*
        !            33:  * i8042 Keyboard Mouse Controller definition
        !            34:  */
        !            35:
        !            36: /* I/O ports */
        !            37: #define KMC_DATA       0x60
        !            38: #define KMC_PORTB      0x61
        !            39: #define KMC_CMD                0x64
        !            40: #define KMC_STS                0x64
        !            41:
        !            42: /* Status */
        !            43: #define STS_PERR       0x80    /* Parity error */
        !            44: #define STS_TMO                0x40    /* Timeout */
        !            45: #define STS_AUXOBF     0x20    /* Mouse OBF */
        !            46: #define STS_INH                0x10    /* 0: inhibit  1: no-inhibit */
        !            47: #define STS_SYS                0x04    /* 0: power up  1:Init comp */
        !            48: #define STS_IBF                0x02    /* Input (to kbd) buffer full */
        !            49: #define STS_OBF                0x01    /* Output (from kbd) buffer full */
        !            50:
        !            51: /* Command */
        !            52: #define CMD_READ_CMD   0x20
        !            53: #define CMD_WRITE_CMD  0x60
        !            54: #define CMD_AUX_DIS    0xa7
        !            55: #define CMD_AUX_EN     0xa8
        !            56: #define CMD_KBD_DIS    0xad
        !            57: #define CMD_KBD_EN     0xae
        !            58: #define CMD_READ_OPORT 0xd0
        !            59: #define CMD_WRITE_OPORT        0xd1
        !            60: #define CMD_WRITE_AUX  0xd4
        !            61:
        !            62: /* Auxillary device command */
        !            63: #define AUX_ENABLE     0xf4
        !            64: #define AUX_DISABLE    0xf5
        !            65: #define AUX_RESET      0xff
        !            66:
        !            67: /*
        !            68:  * wait_obf: Wait output buffer full
        !            69:  * wait_obe: Wait input buffer empty
        !            70:  * wait_ibf: Wait input buffer full
        !            71:  * wait_ibe: Wait input buffer empty
        !            72:  */
        !            73: #define wait_obf()     while ((inb(KMC_STS) & STS_OBF) == 0)
        !            74: #define wait_obe()     while (inb(KMC_STS) & STS_OBF)
        !            75: #define wait_ibf()     while ((inb(KMC_STS) & STS_IBF) == 0)
        !            76: #define wait_ibe()     while (inb(KMC_STS) & STS_IBF)
        !            77:
        !            78: #endif /* !_KMC_H */