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/***************************************************************************
* CVSID: $Id$
*
* probe-input.c : Probe input devices
*
* Copyright (C) 2004 David Zeuthen, <david@fubar.dk>
*
* Licensed under the Academic Free License version 2.1
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef HAL_LINUX_INPUT_HEADER_H
#include HAL_LINUX_INPUT_HEADER_H
#else
#include <linux/input.h>
#endif
#include "libhal/libhal.h"
#include "../../logger.h"
/* we must use this kernel-compatible implementation */
#define BITS_PER_LONG (sizeof(long) * 8)
#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
#define OFF(x) ((x)%BITS_PER_LONG)
#define BIT(x) (1UL<<OFF(x))
#define LONG(x) ((x)/BITS_PER_LONG)
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
int
main (int argc, char *argv[])
{
int fd;
int ret;
char *udi;
char *device_file;
char *button_type;
int sw;
LibHalContext *ctx = NULL;
DBusError error;
long bitmask[NBITS(SW_MAX)];
/* assume failure */
ret = 1;
fd = -1;
setup_logger ();
dbus_error_init (&error);
button_type = getenv ("HAL_PROP_BUTTON_TYPE");
if (button_type == NULL)
goto out;
if (strcmp (button_type, "lid") == 0)
sw = SW_LID;
else if (strcmp (button_type, "tablet_mode") == 0)
sw = SW_TABLET_MODE;
else if (strcmp (button_type, "headphone_insert") == 0)
sw = SW_HEADPHONE_INSERT;
#ifdef SW_RADIO
else if (strcmp (button_type, "radio") == 0)
sw = SW_RADIO;
#endif
else
goto out;
device_file = getenv ("HAL_PROP_INPUT_DEVICE");
if (device_file == NULL)
goto out;
udi = getenv ("UDI");
if (udi == NULL)
goto out;
if ((ctx = libhal_ctx_init_direct (&error)) == NULL)
goto out;
HAL_DEBUG (("Doing probe-input for %s (udi=%s)", device_file, udi));
fd = open (device_file, O_RDONLY);
if (fd < 0) {
HAL_ERROR (("Cannot open %s: %s", device_file, strerror (errno)));
goto out;
}
if (ioctl (fd, EVIOCGSW(sizeof (bitmask)), bitmask) < 0) {
HAL_DEBUG (("ioctl EVIOCGSW failed"));
goto out;
}
libhal_device_set_property_bool (ctx, udi, "button.state.value", test_bit (sw, bitmask), &error);
ret = 0;
out:
if (fd >= 0)
close (fd);
LIBHAL_FREE_DBUS_ERROR (&error);
if (ctx != NULL) {
libhal_ctx_shutdown (ctx, &error);
LIBHAL_FREE_DBUS_ERROR (&error);
libhal_ctx_free (ctx);
}
return ret;
}
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