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/* $NetBSD: devinfo_video.c,v 1.1 2008/11/27 22:19:10 jmcneill Exp $ */
/*-
* Copyright (c) 2008 Jared D. McNeill <jmcneill@invisible.ca>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/videoio.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <paths.h>
#include <unistd.h>
#include "../osspec.h"
#include "../logger.h"
#include "../hald.h"
#include "../hald_dbus.h"
#include "../device_info.h"
#include "../util.h"
#include "../ids.h"
#include "hotplug.h"
#include "devinfo.h"
#include "devinfo_video.h"
#include "drvctl.h"
HalDevice *devinfo_video_add(HalDevice *parent, const char *devnode, char *devfs_path, char *device_type);
DevinfoDevHandler devinfo_video_handler = {
devinfo_video_add,
NULL,
NULL,
NULL,
NULL,
NULL
};
HalDevice *
devinfo_video_add(HalDevice *parent, const char *devnode, char *devfs_path, char *device_type)
{
HalDevice *d = NULL;
prop_dictionary_t dict;
const char *driver, *parent_udi;
char *videodev;
int16_t unit;
struct v4l2_capability caps;
int fd;
if (drvctl_find_device (devnode, &dict) == FALSE || dict == NULL)
return NULL;
if (prop_dictionary_get_int16 (dict, "device-unit", &unit) == false ||
prop_dictionary_get_cstring_nocopy (dict, "device-driver", &driver) == false) {
prop_object_release (dict);
return NULL;
}
prop_object_release (dict);
if (strcmp (driver, "video") != 0)
return NULL;
videodev = g_strdup_printf ("/dev/video%d", unit);
fd = open (videodev, O_RDONLY);
if (fd < 0) {
HAL_WARNING (("couldn't open %s: %s", videodev, strerror(errno)));
goto done;
}
if (ioctl (fd, VIDIOC_QUERYCAP, &caps) == -1) {
HAL_WARNING (("couldn't query %s: %s", videodev, strerror(errno)));
close (fd);
goto done;
}
close (fd);
d = hal_device_new ();
devinfo_set_default_properties (d, parent, devnode, devfs_path);
hal_device_add_capability (d, "video4linux");
if (caps.capabilities & V4L2_CAP_VIDEO_CAPTURE)
hal_device_add_capability (d, "video4linux.video_capture");
hal_device_property_set_string (d, "info.category", "video4linux");
hal_device_property_set_string (d, "info.subsystem", "video4linux");
hal_device_property_set_string (d, "video4linux.device", videodev);
hal_device_property_set_int (d, "video4linux.version", 2);
hal_device_property_set_string (d, "info.product", caps.card);
devinfo_add_enqueue (d, devfs_path, &devinfo_video_handler);
done:
if (videodev)
g_free (videodev);
return d;
}
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