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Annotation of sys/arch/macppc/dev/abtn.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: abtn.c,v 1.11 2006/01/18 23:21:17 miod Exp $  */
        !             2: /*     $NetBSD: abtn.c,v 1.1 1999/07/12 17:48:26 tsubai Exp $  */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 2002, Miodrag Vallat.
        !             6:  * Copyright (C) 1999 Tsubai Masanari.  All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. The name of the author may not be used to endorse or promote products
        !            17:  *    derived from this software without specific prior written permission.
        !            18:  *
        !            19:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            20:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            21:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            22:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            23:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            24:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            25:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            26:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            27:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
        !            28:  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            29:  */
        !            30:
        !            31: #include <sys/param.h>
        !            32: #include <sys/device.h>
        !            33: #include <sys/systm.h>
        !            34:
        !            35: #include <machine/bus.h>
        !            36:
        !            37: #include <dev/ofw/openfirm.h>
        !            38: #include <macppc/macppc/ofw_machdep.h>
        !            39:
        !            40: #include <dev/adb/adb.h>
        !            41:
        !            42: #define ABTN_HANDLER_ID 31
        !            43:
        !            44: struct abtn_softc {
        !            45:        struct device sc_dev;
        !            46:
        !            47:        int origaddr;           /* ADB device type */
        !            48:        int adbaddr;            /* current ADB address */
        !            49:        int handler_id;
        !            50: };
        !            51:
        !            52: int abtn_match(struct device *, void *, void *);
        !            53: void abtn_attach(struct device *, struct device *, void *);
        !            54: void abtn_adbcomplete(caddr_t, caddr_t, int);
        !            55:
        !            56: struct cfattach abtn_ca = {
        !            57:        sizeof(struct abtn_softc), abtn_match, abtn_attach
        !            58: };
        !            59: struct cfdriver abtn_cd = {
        !            60:        NULL, "abtn", DV_DULL
        !            61: };
        !            62:
        !            63: int
        !            64: abtn_match(struct device *parent, void *cf, void *aux)
        !            65: {
        !            66:        struct adb_attach_args *aa = aux;
        !            67:
        !            68:        if (aa->origaddr == ADBADDR_MISC &&
        !            69:            aa->handler_id == ABTN_HANDLER_ID)
        !            70:                return 1;
        !            71:
        !            72:        return 0;
        !            73: }
        !            74:
        !            75: void
        !            76: abtn_attach(struct device *parent, struct device *self, void *aux)
        !            77: {
        !            78:        struct abtn_softc *sc = (struct abtn_softc *)self;
        !            79:        struct adb_attach_args *aa = aux;
        !            80:        ADBSetInfoBlock adbinfo;
        !            81:
        !            82:        printf(": brightness/volume/eject buttons\n");
        !            83:
        !            84:        sc->origaddr = aa->origaddr;
        !            85:        sc->adbaddr = aa->adbaddr;
        !            86:        sc->handler_id = aa->handler_id;
        !            87:
        !            88:        adbinfo.siServiceRtPtr = (Ptr)abtn_adbcomplete;
        !            89:        adbinfo.siDataAreaAddr = (caddr_t)sc;
        !            90:
        !            91:        set_adb_info(&adbinfo, sc->adbaddr);
        !            92: }
        !            93:
        !            94: void
        !            95: abtn_adbcomplete(caddr_t buffer, caddr_t data, int adb_command)
        !            96: {
        !            97:        u_int cmd, brightness;
        !            98:
        !            99:        cmd = buffer[1];
        !           100:
        !           101:        switch (cmd) {
        !           102:        case 0x0a:      /* decrease brightness */
        !           103:                brightness = cons_brightness;
        !           104:                if (brightness == MAX_BRIGHTNESS)
        !           105:                        brightness++;           /* get round values */
        !           106:                brightness -= STEP_BRIGHTNESS;
        !           107:                of_setbrightness(brightness);
        !           108:                break;
        !           109:
        !           110:        case 0x09:      /* increase brightness */
        !           111:                brightness = cons_brightness + STEP_BRIGHTNESS;
        !           112:                of_setbrightness(brightness);
        !           113:                break;
        !           114:
        !           115: #ifdef DEBUG
        !           116:        case 0x08:      /* mute */
        !           117:        case 0x01:      /* mute, AV hardware */
        !           118:        case 0x07:      /* decrease volume */
        !           119:        case 0x02:      /* decrease volume, AV hardware */
        !           120:        case 0x06:      /* increase volume */
        !           121:        case 0x03:      /* increase volume, AV hardware */
        !           122:                /* Need callback to do something with these */
        !           123:                break;
        !           124:
        !           125:        case 0x0c:      /* mirror display key */
        !           126:                /* Need callback to do something with this */
        !           127:                break;
        !           128:
        !           129:        case 0x0b:      /* eject tray */
        !           130:                /* Need callback to do something with this */
        !           131:                break;
        !           132:
        !           133:        case 0x7f:      /* numlock */
        !           134:                /* Need callback to do something with this */
        !           135:                break;
        !           136:
        !           137:        default:
        !           138:                if ((cmd & ~0x7f) == 0)
        !           139:                        printf("unknown ADB button 0x%x\n", cmd);
        !           140:                break;
        !           141: #endif
        !           142:        }
        !           143: }