161 lines
4.3 KiB
C
161 lines
4.3 KiB
C
/*-
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* Copyright (c) 2011, Justin Hibbits.
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* Copyright (c) 2002, Miodrag Vallat.
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* Copyright (C) 1999 Tsubai Masanari. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* OpenBSD: abtn.c,v 1.12 2009/01/10 18:00:59 robert Exp
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* NetBSD: abtn.c,v 1.1 1999/07/12 17:48:26 tsubai Exp
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <dev/ofw/openfirm.h>
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#include <machine/ofw_machdep.h>
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#include <dev/adb/adb.h>
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#define ABTN_HANDLER_ID 31
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struct abtn_softc {
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device_t sc_dev;
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int handler_id;
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};
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static int abtn_probe(device_t dev);
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static int abtn_attach(device_t dev);
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static u_int abtn_receive_packet(device_t dev, u_char status,
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u_char command, u_char reg, int len, u_char *data);
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static device_method_t abtn_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, abtn_probe),
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DEVMETHOD(device_attach, abtn_attach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* ADB interface */
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DEVMETHOD(adb_receive_packet, abtn_receive_packet),
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{ 0, 0 }
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};
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static driver_t abtn_driver = {
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"abtn",
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abtn_methods,
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sizeof(struct abtn_softc),
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};
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static devclass_t abtn_devclass;
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DRIVER_MODULE(abtn, adb, abtn_driver, abtn_devclass, 0, 0);
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static int
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abtn_probe(device_t dev)
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{
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uint8_t type;
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type = adb_get_device_type(dev);
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if (type != ADB_DEVICE_MISC)
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return (ENXIO);
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device_set_desc(dev, "ADB Brightness/Volume/Eject Buttons");
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return (0);
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}
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static int
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abtn_attach(device_t dev)
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{
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struct abtn_softc *sc;
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sc = device_get_softc(dev);
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sc->sc_dev = dev;
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sc->handler_id = adb_get_device_handler(dev);
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return 0;
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}
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static u_int
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abtn_receive_packet(device_t dev, u_char status,
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u_char command, u_char reg, int len, u_char *data)
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{
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u_int cmd;
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cmd = data[0];
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switch (cmd) {
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case 0x0a: /* decrease brightness */
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devctl_notify("PMU", "keys", "brightness",
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"notify=down");
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break;
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case 0x09: /* increase brightness */
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devctl_notify("PMU", "keys", "brightness", "notify=up");
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break;
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case 0x08: /* mute */
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case 0x01: /* mute, AV hardware */
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devctl_notify("PMU", "keys", "mute", NULL);
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break;
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case 0x07: /* decrease volume */
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case 0x02: /* decrease volume, AV hardware */
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devctl_notify("PMU", "keys", "volume", "notify=down");
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break;
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case 0x06: /* increase volume */
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case 0x03: /* increase volume, AV hardware */
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devctl_notify("PMU", "keys", "volume", "notify=up");
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break;
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case 0x0c: /* mirror display key */
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/* Need callback to do something with this */
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break;
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case 0x0b: /* eject tray */
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devctl_notify("PMU", "keys", "eject", NULL);
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break;
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case 0x7f: /* numlock */
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/* Need callback to do something with this */
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break;
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default:
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#ifdef DEBUG
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if ((cmd & ~0x7f) == 0)
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device_printf(dev, "unknown ADB button 0x%x\n", cmd);
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#endif
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break;
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}
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return 0;
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}
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