Ejemplos de PWC_DEBUG_IOCTL en C++ (Cpp)

Ejemplo n.º 1

Archivo: pwc-v4l.c Proyecto: 03199618/linux

static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
{
	struct pwc_device *pdev = video_drvdata(file);
	int ret, pixelformat, compression = 0;

	ret = pwc_vidioc_try_fmt(pdev, f);
	if (ret < 0)
		return ret;

	if (vb2_is_busy(&pdev->vb_queue))
		return -EBUSY;

	pixelformat = f->fmt.pix.pixelformat;

	PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d "
			"format=%c%c%c%c\n",
			f->fmt.pix.width, f->fmt.pix.height, pdev->vframes,
			(pixelformat)&255,
			(pixelformat>>8)&255,
			(pixelformat>>16)&255,
			(pixelformat>>24)&255);

	ret = pwc_set_video_mode(pdev, f->fmt.pix.width, f->fmt.pix.height,
				 pixelformat, 30, &compression, 0);

	PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret);

	pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt);
	return ret;
}

Ejemplo n.º 2

Archivo: pwc-v4l.c Proyecto: mikuhatsune001/linux2.6.32

/* ioctl(VIDIOC_TRY_FMT) */
static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)
{
	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
		PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
		return -EINVAL;
	}

	switch (f->fmt.pix.pixelformat) {
		case V4L2_PIX_FMT_YUV420:
			break;
		case V4L2_PIX_FMT_PWC1:
			if (DEVICE_USE_CODEC23(pdev->type)) {
				PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
				return -EINVAL;
			}
			break;
		case V4L2_PIX_FMT_PWC2:
			if (DEVICE_USE_CODEC1(pdev->type)) {
				PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
				return -EINVAL;
			}
			break;
		default:
			PWC_DEBUG_IOCTL("Unsupported pixel format\n");
			return -EINVAL;

	}

	if (f->fmt.pix.width > pdev->view_max.x)
		f->fmt.pix.width = pdev->view_max.x;
	else if (f->fmt.pix.width < pdev->view_min.x)
		f->fmt.pix.width = pdev->view_min.x;

	if (f->fmt.pix.height > pdev->view_max.y)
		f->fmt.pix.height = pdev->view_max.y;
	else if (f->fmt.pix.height < pdev->view_min.y)
		f->fmt.pix.height = pdev->view_min.y;

	return 0;
}

Ejemplo n.º 3

Archivo: pwc-v4l.c Proyecto: ARMWorks/FA_2451_Linux_Kernel

/* ioctl(VIDIOC_TRY_FMT) */
static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)
{
	int size;

	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
		PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
		return -EINVAL;
	}

	switch (f->fmt.pix.pixelformat) {
		case V4L2_PIX_FMT_YUV420:
			break;
		case V4L2_PIX_FMT_PWC1:
			if (DEVICE_USE_CODEC23(pdev->type)) {
				PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
				return -EINVAL;
			}
			break;
		case V4L2_PIX_FMT_PWC2:
			if (DEVICE_USE_CODEC1(pdev->type)) {
				PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
				return -EINVAL;
			}
			break;
		default:
			PWC_DEBUG_IOCTL("Unsupported pixel format\n");
			return -EINVAL;

	}

	size = pwc_get_size(pdev, f->fmt.pix.width, f->fmt.pix.height);
	pwc_vidioc_fill_fmt(f,
			    pwc_image_sizes[size][0],
			    pwc_image_sizes[size][1],
			    f->fmt.pix.pixelformat);

	return 0;
}