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Annotation of sys/arch/macppc/dev/viareg.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: viareg.h,v 1.4 2002/06/07 07:14:48 miod Exp $ */
        !             2: /*     $NetBSD: viareg.h,v 1.2 1998/10/20 14:56:30 tsubai Exp $        */
        !             3:
        !             4: /*-
        !             5:  * Copyright (C) 1993  Allen K. Briggs, Chris P. Caputo,
        !             6:  *                     Michael L. Finch, Bradley A. Grantham, and
        !             7:  *                     Lawrence A. Kesteloot
        !             8:  * All rights reserved.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. All advertising materials mentioning features or use of this software
        !            19:  *    must display the following acknowledgement:
        !            20:  *     This product includes software developed by the Alice Group.
        !            21:  * 4. The names of the Alice Group or any of its members may not be used
        !            22:  *    to endorse or promote products derived from this software without
        !            23:  *    specific prior written permission.
        !            24:  *
        !            25:  * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
        !            26:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            27:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            28:  * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            29:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            30:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            31:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            32:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            33:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
        !            34:  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            35:  *
        !            36:  */
        !            37: /*
        !            38:
        !            39:        Prototype VIA control definitions
        !            40:
        !            41:        06/04/92,22:33:57 BG Let's see what I can do.
        !            42:
        !            43: */
        !            44:
        !            45: extern volatile unsigned char *Via1Base;
        !            46: #define VIA1_addr      Via1Base        /* at PA 0x50f00000 */
        !            47:
        !            48: #define VIA1           0
        !            49: #define VIA2           0
        !            50:
        !            51:        /* VIA interface registers */
        !            52: #define vBufA          0x1e00  /* register A */
        !            53: #define vBufB          0       /* register B */
        !            54: #define vDirA          0x0600  /* data direction register */
        !            55: #define vDirB          0x0400  /* data direction register */
        !            56: #define vT1C           0x0800
        !            57: #define vT1CH          0x0a00
        !            58: #define vT1L           0x0c00
        !            59: #define vT1LH          0x0e00
        !            60: #define vT2C           0x1000
        !            61: #define vT2CH          0x1200
        !            62: #define vSR            0x1400  /* shift register */
        !            63: #define vACR           0x1600  /* aux control register */
        !            64: #define vIFR           0x1a00  /* interrupt flag register */
        !            65: #define vIER           0x1c00  /* interrupt enable register */
        !            66:
        !            67: #define via_reg(v, r) (*(Via1Base + (r)))
        !            68:
        !            69: #include <machine/pio.h>
        !            70:
        !            71: static __inline void
        !            72: via_reg_and(int ign, int reg, int val)
        !            73: {
        !            74:        volatile unsigned char *addr = Via1Base + reg;
        !            75:
        !            76:        out8(addr, in8(addr) & val);
        !            77: }
        !            78:
        !            79: static __inline void
        !            80: via_reg_or(int ign, int reg, int val)
        !            81: {
        !            82:        volatile unsigned char *addr = Via1Base + reg;
        !            83:
        !            84:        out8(addr, in8(addr) | val);
        !            85: }
        !            86:
        !            87: static __inline void
        !            88: via_reg_xor(int ign, int reg, int val)
        !            89: {
        !            90:        volatile unsigned char *addr = Via1Base + reg;
        !            91:
        !            92:        out8(addr, in8(addr) ^ val);
        !            93: }
        !            94:
        !            95: static __inline int
        !            96: read_via_reg(int ign, int reg)
        !            97: {
        !            98:        volatile unsigned char *addr = Via1Base + reg;
        !            99:
        !           100:        return in8(addr);
        !           101: }
        !           102:
        !           103: static __inline void
        !           104: write_via_reg(int ign, int reg, int val)
        !           105: {
        !           106:        volatile unsigned char *addr = Via1Base + reg;
        !           107:
        !           108:        out8(addr, val);
        !           109: }