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/*
* Linux Apple IR Remote input interface
*
* Copyright (C) 2008 Benjamin Zores <ben at geexbox dot org>
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "ar.h"
#include "input.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <linux/types.h>
#include <linux/input.h>
#include "mp_msg.h"
// keycodes.h defines would conflict with linux/input.h ones
#define AR_DEFINES_ONLY
#include "keycodes.h"
#define EVDEV_MAX_EVENTS 32
/* ripped from AppleIR driver */
#define USB_VENDOR_APPLE 0x05ac
#define USB_DEV_APPLE_IR 0x8240
#define USB_DEV_APPLE_IR_2 0x8242
/* Apple IR Remote evdev mapping */
#define APPLE_IR_MINUS KEY_VOLUMEDOWN
#define APPLE_IR_PLUS KEY_VOLUMEUP
#define APPLE_IR_MENU KEY_MENU
#define APPLE_IR_FORWARD KEY_NEXTSONG
#define APPLE_IR_PLAY KEY_PLAYPAUSE
#define APPLE_IR_BACKWARD KEY_PREVIOUSSONG
static const struct {
int linux_keycode;
int value;
int mp_keycode;
} apple_ir_mapping[] = {
{ APPLE_IR_PLAY, 1, AR_PLAY },
{ APPLE_IR_PLAY, 2, AR_PLAY_HOLD },
{ APPLE_IR_FORWARD, 1, AR_NEXT },
{ APPLE_IR_FORWARD, 2, AR_NEXT_HOLD },
{ APPLE_IR_BACKWARD, 1, AR_PREV },
{ APPLE_IR_BACKWARD, 2, AR_PREV_HOLD },
{ APPLE_IR_MENU, 1, AR_MENU },
{ APPLE_IR_MENU, 2, AR_MENU_HOLD },
{ APPLE_IR_PLUS, 1, AR_VUP },
{ APPLE_IR_MINUS, 1, AR_VDOWN },
{ -1, -1, -1 }
};
int mp_input_appleir_init (char *dev)
{
int i, fd;
if (dev)
{
mp_tmsg (MSGT_INPUT, MSGL_V, "Initializing Apple IR on %s\n", dev);
fd = open (dev, O_RDONLY | O_NONBLOCK);
if (fd < 0)
{
mp_tmsg (MSGT_INPUT, MSGL_ERR,
"Can't open Apple IR device: %s\n", strerror (errno));
return -1;
}
return fd;
}
else
{
/* look for a valid AppleIR device on system */
for (i = 0; i < EVDEV_MAX_EVENTS; i++)
{
struct input_id id;
char file[64];
sprintf (file, "/dev/input/event%d", i);
fd = open (file, O_RDONLY | O_NONBLOCK);
if (fd < 0)
continue;
ioctl (fd, EVIOCGID, &id);
if (id.bustype == BUS_USB &&
id.vendor == USB_VENDOR_APPLE &&
(id.product == USB_DEV_APPLE_IR ||id.product == USB_DEV_APPLE_IR_2))
{
mp_tmsg (MSGT_INPUT, MSGL_V, "Detected Apple IR on %s\n", file);
return fd;
}
close (fd);
}
mp_tmsg (MSGT_INPUT, MSGL_ERR,
"Can't open Apple IR device: %s\n", strerror (errno));
}
return -1;
}
int mp_input_appleir_read(void *ctx, int fd)
{
struct input_event ev;
int i, r;
r = read (fd, &ev, sizeof (struct input_event));
if (r <= 0 || r < sizeof (struct input_event))
return MP_INPUT_NOTHING;
/* check for key press only */
if (ev.type != EV_KEY)
return MP_INPUT_NOTHING;
/* EvDev Key values:
* 0: key release
* 1: key press
* 2: key auto-repeat
*/
if (ev.value == 0)
return MP_INPUT_NOTHING;
/* find Linux evdev -> MPlayer keycode mapping */
for (i = 0; apple_ir_mapping[i].linux_keycode != -1; i++)
if (apple_ir_mapping[i].linux_keycode == ev.code &&
apple_ir_mapping[i].value == ev.value)
return apple_ir_mapping[i].mp_keycode;
return MP_INPUT_NOTHING;
}
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