/*
#             (C) 2008 Hans de Goede <hdegoede@redhat.com>

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335  USA
 */

#include <stdio.h>
#include <stdlib.h>
#include "../libv4lconvert/libv4lsyscall-priv.h"
#include "libv4l1-videodev.h"
#include "libv4l1-priv.h"

#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

FILE *v4l1_log_file = NULL;

static const char *v4l1_ioctls[] = {
	[_IOC_NR(VIDIOCGCAP)]       = "VIDIOCGCAP",
	[_IOC_NR(VIDIOCGCHAN)]      = "VIDIOCGCHAN",
	[_IOC_NR(VIDIOCSCHAN)]      = "VIDIOCSCHAN",
	[_IOC_NR(VIDIOCGTUNER)]     = "VIDIOCGTUNER",
	[_IOC_NR(VIDIOCSTUNER)]     = "VIDIOCSTUNER",
	[_IOC_NR(VIDIOCGPICT)]      = "VIDIOCGPICT",
	[_IOC_NR(VIDIOCSPICT)]      = "VIDIOCSPICT",
	[_IOC_NR(VIDIOCCAPTURE)]    = "VIDIOCCAPTURE",
	[_IOC_NR(VIDIOCGWIN)]       = "VIDIOCGWIN",
	[_IOC_NR(VIDIOCSWIN)]       = "VIDIOCSWIN",
	[_IOC_NR(VIDIOCGFBUF)]      = "VIDIOCGFBUF",
	[_IOC_NR(VIDIOCSFBUF)]      = "VIDIOCSFBUF",
	[_IOC_NR(VIDIOCGFREQ)]      = "VIDIOCGFREQ",
	[_IOC_NR(VIDIOCSFREQ)]      = "VIDIOCSFREQ",
	[_IOC_NR(VIDIOCGAUDIO)]     = "VIDIOCGAUDIO",
	[_IOC_NR(VIDIOCSAUDIO)]     = "VIDIOCSAUDIO",
	[_IOC_NR(VIDIOCSYNC)]       = "VIDIOCSYNC",
	[_IOC_NR(VIDIOCMCAPTURE)]   = "VIDIOCMCAPTURE",
	[_IOC_NR(VIDIOCGMBUF)]      = "VIDIOCGMBUF",
	[_IOC_NR(VIDIOCGVBIFMT)]    = "VIDIOCGVBIFMT",
	[_IOC_NR(VIDIOCSVBIFMT)]    = "VIDIOCSVBIFMT",
};

void v4l1_log_ioctl(unsigned long int request, void *arg, int result)
{
	const char *ioctl_str = "unknown";
	char buf[40];

	if (!v4l1_log_file)
		return;

	/* Don't log v4l2 ioctl's as unknown we pass them to libv4l2 which will
	   log them for us */
	if (_IOC_TYPE(request) == 'V')
		return;

	if (_IOC_TYPE(request) == 'v' && _IOC_NR(request) < ARRAY_SIZE(v4l1_ioctls))
		ioctl_str = v4l1_ioctls[_IOC_NR(request)];
	else {
		snprintf(buf, sizeof(buf), "unknown request: %c %d\n",
				(int)_IOC_TYPE(request), (int)_IOC_NR(request));
		ioctl_str = buf;
	}

	fprintf(v4l1_log_file, "request == %s\n", ioctl_str);

	switch (request) {
	case VIDIOCGCAP:
		fprintf(v4l1_log_file, "name      %s\n", ((struct video_capability *)arg)->name);
		fprintf(v4l1_log_file, "type      %d\n", ((struct video_capability *)arg)->type);
		fprintf(v4l1_log_file, "channels  %d\n", ((struct video_capability *)arg)->channels);
		fprintf(v4l1_log_file, "audios    %d\n", ((struct video_capability *)arg)->audios);
		fprintf(v4l1_log_file, "maxwidth  %d\n", ((struct video_capability *)arg)->maxwidth);
		fprintf(v4l1_log_file, "maxheight %d\n", ((struct video_capability *)arg)->maxheight);
		fprintf(v4l1_log_file, "minwidth  %d\n", ((struct video_capability *)arg)->minwidth);
		fprintf(v4l1_log_file, "minheight %d\n", ((struct video_capability *)arg)->minheight);
		break;
	case VIDIOCGWIN:
	case VIDIOCSWIN:
		fprintf(v4l1_log_file, "width     %u\n",
				((struct video_window *)arg)->width);
		fprintf(v4l1_log_file, "height    %u\n",
				((struct video_window *)arg)->height);
		break;

	case VIDIOCGCHAN:
	case VIDIOCSCHAN:
		fprintf(v4l1_log_file, "channel   %d\n", ((struct video_channel *)arg)->channel);
		fprintf(v4l1_log_file, "name      %s\n", ((struct video_channel *)arg)->name);
		break;

	case VIDIOCGPICT:
	case VIDIOCSPICT:
		fprintf(v4l1_log_file, "brightness %d\n", ((int)((struct video_picture *)arg)->brightness));
		fprintf(v4l1_log_file, "hue       %d\n", ((int)((struct video_picture *)arg)->hue));
		fprintf(v4l1_log_file, "colour    %d\n", ((int)((struct video_picture *)arg)->colour));
		fprintf(v4l1_log_file, "contrast  %d\n", ((int)((struct video_picture *)arg)->contrast));
		fprintf(v4l1_log_file, "whiteness %d\n", ((int)((struct video_picture *)arg)->whiteness));
		fprintf(v4l1_log_file, "depth     %d\n", ((int)((struct video_picture *)arg)->depth));
		fprintf(v4l1_log_file, "palette   %d\n", ((int)((struct video_picture *)arg)->palette));
		break;

	case VIDIOCCAPTURE:
		fprintf(v4l1_log_file, "on/off?   %d\n", *((int *)arg));
		break;

	case VIDIOCSYNC:
		fprintf(v4l1_log_file, "sync      %d\n", *((int *)arg));
		break;

	case VIDIOCMCAPTURE:
		fprintf(v4l1_log_file, "frame     %u\n", ((struct video_mmap *)arg)->frame);
		fprintf(v4l1_log_file, "width     %d\n", ((struct video_mmap *)arg)->width);
		fprintf(v4l1_log_file, "height    %d\n", ((struct video_mmap *)arg)->height);
		fprintf(v4l1_log_file, "format    %u\n", ((struct video_mmap *)arg)->format);
		break;

	case VIDIOCGMBUF:
		fprintf(v4l1_log_file, "size      %d\n", ((struct video_mbuf *)arg)->size);
		fprintf(v4l1_log_file, "frames    %d\n", ((struct video_mbuf *)arg)->frames);
		break;
	}
	fprintf(v4l1_log_file, "result == %d\n", result);
	fflush(v4l1_log_file);
}