freebsd-dev/sys/dev/adb/adb_buttons.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

163 lines
4.3 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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;
}