[media] media: tw686x: Support frame sizes and frame intervals enumeration
This commit adds support for VIDIOC_ENUM_FRAMESIZES and VIDIOC_ENUM_FRAMEINTERVALS enumeration ioctls. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -906,6 +906,42 @@ static int tw686x_g_std(struct file *file, void *priv, v4l2_std_id *id)
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return 0;
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}
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static int tw686x_enum_framesizes(struct file *file, void *priv,
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struct v4l2_frmsizeenum *fsize)
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{
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struct tw686x_video_channel *vc = video_drvdata(file);
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if (fsize->index)
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return -EINVAL;
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fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
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fsize->stepwise.max_width = TW686X_VIDEO_WIDTH;
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fsize->stepwise.min_width = fsize->stepwise.max_width / 2;
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fsize->stepwise.step_width = fsize->stepwise.min_width;
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fsize->stepwise.max_height = TW686X_VIDEO_HEIGHT(vc->video_standard);
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fsize->stepwise.min_height = fsize->stepwise.max_height / 2;
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fsize->stepwise.step_height = fsize->stepwise.min_height;
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return 0;
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}
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static int tw686x_enum_frameintervals(struct file *file, void *priv,
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struct v4l2_frmivalenum *ival)
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{
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struct tw686x_video_channel *vc = video_drvdata(file);
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int max_fps = TW686X_MAX_FPS(vc->video_standard);
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int max_rates = DIV_ROUND_UP(max_fps, 2);
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if (ival->index >= max_rates)
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return -EINVAL;
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ival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
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ival->discrete.numerator = 1;
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if (ival->index < (max_rates - 1))
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ival->discrete.denominator = (ival->index + 1) * 2;
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else
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ival->discrete.denominator = max_fps;
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return 0;
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}
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static int tw686x_g_parm(struct file *file, void *priv,
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struct v4l2_streamparm *sp)
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{
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@ -1034,6 +1070,8 @@ static const struct v4l2_ioctl_ops tw686x_video_ioctl_ops = {
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.vidioc_g_parm = tw686x_g_parm,
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.vidioc_s_parm = tw686x_s_parm,
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.vidioc_enum_framesizes = tw686x_enum_framesizes,
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.vidioc_enum_frameintervals = tw686x_enum_frameintervals,
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.vidioc_enum_input = tw686x_enum_input,
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.vidioc_g_input = tw686x_g_input,
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