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