[media] vivid: add the video capture and output parts

This adds the ioctl and vb2 queue support for video capture and output.
Part of this is common to both, so that is placed in a vid-common source.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 1205 insertions, 0 deletions

diff --git a/drivers/media/platform/vivid/vivid-vid-out.c b/drivers/media/platform/vivid/vivid-vid-out.c
new file mode 100644
index 000000000000..3078bd2fdc01
--- /dev/null
+++ b/drivers/media/platform/vivid/vivid-vid-out.c
@@ -0,0 +1,1205 @@
+/*
+ * vivid-vid-out.c - video output support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+
+#include "vivid-core.h"
+#include "vivid-vid-common.h"
+#include "vivid-kthread-out.h"
+#include "vivid-vid-out.h"
+
+static int vid_out_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
+		       unsigned *nbuffers, unsigned *nplanes,
+		       unsigned sizes[], void *alloc_ctxs[])
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	unsigned planes = dev->fmt_out->planes;
+	unsigned h = dev->fmt_out_rect.height;
+	unsigned size = dev->bytesperline_out[0] * h;
+
+	if (dev->field_out == V4L2_FIELD_ALTERNATE) {
+		/*
+		 * You cannot use write() with FIELD_ALTERNATE since the field
+		 * information (TOP/BOTTOM) cannot be passed to the kernel.
+		 */
+		if (vb2_fileio_is_active(vq))
+			return -EINVAL;
+	}
+
+	if (dev->queue_setup_error) {
+		/*
+		 * Error injection: test what happens if queue_setup() returns
+		 * an error.
+		 */
+		dev->queue_setup_error = false;
+		return -EINVAL;
+	}
+
+	if (fmt) {
+		const struct v4l2_pix_format_mplane *mp;
+		struct v4l2_format mp_fmt;
+
+		if (!V4L2_TYPE_IS_MULTIPLANAR(fmt->type)) {
+			fmt_sp2mp(fmt, &mp_fmt);
+			fmt = &mp_fmt;
+		}
+		mp = &fmt->fmt.pix_mp;
+		/*
+		 * Check if the number of planes in the specified format match
+		 * the number of planes in the current format. You can't mix that.
+		 */
+		if (mp->num_planes != planes)
+			return -EINVAL;
+		sizes[0] = mp->plane_fmt[0].sizeimage;
+		if (planes == 2) {
+			sizes[1] = mp->plane_fmt[1].sizeimage;
+			if (sizes[0] < dev->bytesperline_out[0] * h ||
+			    sizes[1] < dev->bytesperline_out[1] * h)
+				return -EINVAL;
+		} else if (sizes[0] < size) {
+			return -EINVAL;
+		}
+	} else {
+		if (planes == 2) {
+			sizes[0] = dev->bytesperline_out[0] * h;
+			sizes[1] = dev->bytesperline_out[1] * h;
+		} else {
+			sizes[0] = size;
+		}
+	}
+
+	if (vq->num_buffers + *nbuffers < 2)
+		*nbuffers = 2 - vq->num_buffers;
+
+	*nplanes = planes;
+
+	/*
+	 * videobuf2-vmalloc allocator is context-less so no need to set
+	 * alloc_ctxs array.
+	 */
+
+	if (planes == 2)
+		dprintk(dev, 1, "%s, count=%d, sizes=%u, %u\n", __func__,
+			*nbuffers, sizes[0], sizes[1]);
+	else
+		dprintk(dev, 1, "%s, count=%d, size=%u\n", __func__,
+			*nbuffers, sizes[0]);
+	return 0;
+}
+
+static int vid_out_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned long size;
+	unsigned planes = dev->fmt_out->planes;
+	unsigned p;
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	if (WARN_ON(NULL == dev->fmt_out))
+		return -EINVAL;
+
+	if (dev->buf_prepare_error) {
+		/*
+		 * Error injection: test what happens if buf_prepare() returns
+		 * an error.
+		 */
+		dev->buf_prepare_error = false;
+		return -EINVAL;
+	}
+
+	if (dev->field_out != V4L2_FIELD_ALTERNATE)
+		vb->v4l2_buf.field = dev->field_out;
+	else if (vb->v4l2_buf.field != V4L2_FIELD_TOP &&
+		 vb->v4l2_buf.field != V4L2_FIELD_BOTTOM)
+		return -EINVAL;
+
+	for (p = 0; p < planes; p++) {
+		size = dev->bytesperline_out[p] * dev->fmt_out_rect.height +
+			vb->v4l2_planes[p].data_offset;
+
+		if (vb2_get_plane_payload(vb, p) < size) {
+			dprintk(dev, 1, "%s the payload is too small for plane %u (%lu < %lu)\n",
+					__func__, p, vb2_get_plane_payload(vb, p), size);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static void vid_out_buf_queue(struct vb2_buffer *vb)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+	struct vivid_buffer *buf = container_of(vb, struct vivid_buffer, vb);
+
+	dprintk(dev, 1, "%s\n", __func__);
+
+	spin_lock(&dev->slock);
+	list_add_tail(&buf->list, &dev->vid_out_active);
+	spin_unlock(&dev->slock);
+}
+
+static int vid_out_start_streaming(struct vb2_queue *vq, unsigned count)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+	int err;
+
+	if (vb2_is_streaming(&dev->vb_vid_cap_q))
+		dev->can_loop_video = vivid_vid_can_loop(dev);
+
+	if (dev->kthread_vid_out)
+		return 0;
+
+	dev->vid_out_seq_count = 0;
+	dprintk(dev, 1, "%s\n", __func__);
+	if (dev->start_streaming_error) {
+		dev->start_streaming_error = false;
+		err = -EINVAL;
+	} else {
+		err = vivid_start_generating_vid_out(dev, &dev->vid_out_streaming);
+	}
+	if (err) {
+		struct vivid_buffer *buf, *tmp;
+
+		list_for_each_entry_safe(buf, tmp, &dev->vid_out_active, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
+		}
+	}
+	return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void vid_out_stop_streaming(struct vb2_queue *vq)
+{
+	struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+	dprintk(dev, 1, "%s\n", __func__);
+	vivid_stop_generating_vid_out(dev, &dev->vid_out_streaming);
+	dev->can_loop_video = false;
+}
+
+const struct vb2_ops vivid_vid_out_qops = {
+	.queue_setup		= vid_out_queue_setup,
+	.buf_prepare		= vid_out_buf_prepare,
+	.buf_queue		= vid_out_buf_queue,
+	.start_streaming	= vid_out_start_streaming,
+	.stop_streaming		= vid_out_stop_streaming,
+	.wait_prepare		= vivid_unlock,
+	.wait_finish		= vivid_lock,
+};
+
+/*
+ * Called whenever the format has to be reset which can occur when
+ * changing outputs, standard, timings, etc.
+ */
+void vivid_update_format_out(struct vivid_dev *dev)
+{
+	struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
+	unsigned size;
+
+	switch (dev->output_type[dev->output]) {
+	case SVID:
+	default:
+		dev->field_out = dev->tv_field_out;
+		dev->sink_rect.width = 720;
+		if (dev->std_out & V4L2_STD_525_60) {
+			dev->sink_rect.height = 480;
+			dev->timeperframe_vid_out = (struct v4l2_fract) { 1001, 30000 };
+			dev->service_set_out = V4L2_SLICED_CAPTION_525;
+		} else {
+			dev->sink_rect.height = 576;
+			dev->timeperframe_vid_out = (struct v4l2_fract) { 1000, 25000 };
+			dev->service_set_out = V4L2_SLICED_WSS_625;
+		}
+		dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
+		break;
+	case HDMI:
+		dev->sink_rect.width = bt->width;
+		dev->sink_rect.height = bt->height;
+		size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
+		dev->timeperframe_vid_out = (struct v4l2_fract) {
+			size / 100, (u32)bt->pixelclock / 100
+		};
+		if (bt->interlaced)
+			dev->field_out = V4L2_FIELD_ALTERNATE;
+		else
+			dev->field_out = V4L2_FIELD_NONE;
+		if (!dev->dvi_d_out && (bt->standards & V4L2_DV_BT_STD_CEA861)) {
+			if (bt->width == 720 && bt->height <= 576)
+				dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
+			else
+				dev->colorspace_out = V4L2_COLORSPACE_REC709;
+		} else {
+			dev->colorspace_out = V4L2_COLORSPACE_SRGB;
+		}
+		break;
+	}
+	dev->compose_out = dev->sink_rect;
+	dev->compose_bounds_out = dev->sink_rect;
+	dev->crop_out = dev->compose_out;
+	if (V4L2_FIELD_HAS_T_OR_B(dev->field_out))
+		dev->crop_out.height /= 2;
+	dev->fmt_out_rect = dev->crop_out;
+	dev->bytesperline_out[0] = (dev->sink_rect.width * dev->fmt_out->depth) / 8;
+	if (dev->fmt_out->planes == 2)
+		dev->bytesperline_out[1] = (dev->sink_rect.width * dev->fmt_out->depth) / 8;
+}
+
+/* Map the field to something that is valid for the current output */
+static enum v4l2_field vivid_field_out(struct vivid_dev *dev, enum v4l2_field field)
+{
+	if (vivid_is_svid_out(dev)) {
+		switch (field) {
+		case V4L2_FIELD_INTERLACED_TB:
+		case V4L2_FIELD_INTERLACED_BT:
+		case V4L2_FIELD_SEQ_TB:
+		case V4L2_FIELD_SEQ_BT:
+		case V4L2_FIELD_ALTERNATE:
+			return field;
+		case V4L2_FIELD_INTERLACED:
+		default:
+			return V4L2_FIELD_INTERLACED;
+		}
+	}
+	if (vivid_is_hdmi_out(dev))
+		return dev->dv_timings_out.bt.interlaced ? V4L2_FIELD_ALTERNATE :
+						       V4L2_FIELD_NONE;
+	return V4L2_FIELD_NONE;
+}
+
+static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
+{
+	if (vivid_is_svid_out(dev))
+		return (dev->std_out & V4L2_STD_525_60) ?
+			TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
+
+	if (vivid_is_hdmi_out(dev) &&
+	    dev->sink_rect.width == 720 && dev->sink_rect.height <= 576)
+		return dev->sink_rect.height == 480 ?
+			TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
+
+	return TPG_PIXEL_ASPECT_SQUARE;
+}
+
+int vivid_g_fmt_vid_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	unsigned p;
+
+	mp->width        = dev->fmt_out_rect.width;
+	mp->height       = dev->fmt_out_rect.height;
+	mp->field        = dev->field_out;
+	mp->pixelformat  = dev->fmt_out->fourcc;
+	mp->colorspace   = dev->colorspace_out;
+	mp->num_planes = dev->fmt_out->planes;
+	for (p = 0; p < mp->num_planes; p++) {
+		mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p];
+		mp->plane_fmt[p].sizeimage =
+			mp->plane_fmt[p].bytesperline * mp->height;
+	}
+	return 0;
+}
+
+int vivid_try_fmt_vid_out(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
+	const struct vivid_fmt *fmt;
+	unsigned bytesperline, max_bpl;
+	unsigned factor = 1;
+	unsigned w, h;
+	unsigned p;
+
+	fmt = get_format(dev, mp->pixelformat);
+	if (!fmt) {
+		dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
+			mp->pixelformat);
+		mp->pixelformat = V4L2_PIX_FMT_YUYV;
+		fmt = get_format(dev, mp->pixelformat);
+	}
+
+	mp->field = vivid_field_out(dev, mp->field);
+	if (vivid_is_svid_out(dev)) {
+		w = 720;
+		h = (dev->std_out & V4L2_STD_525_60) ? 480 : 576;
+	} else {
+		w = dev->sink_rect.width;
+		h = dev->sink_rect.height;
+	}
+	if (V4L2_FIELD_HAS_T_OR_B(mp->field))
+		factor = 2;
+	if (!dev->has_scaler_out && !dev->has_crop_out && !dev->has_compose_out) {
+		mp->width = w;
+		mp->height = h / factor;
+	} else {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
+
+		rect_set_min_size(&r, &vivid_min_rect);
+		rect_set_max_size(&r, &vivid_max_rect);
+		if (dev->has_scaler_out && !dev->has_crop_out) {
+			struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
+
+			rect_set_max_size(&r, &max_r);
+		} else if (!dev->has_scaler_out && dev->has_compose_out && !dev->has_crop_out) {
+			rect_set_max_size(&r, &dev->sink_rect);
+		} else if (!dev->has_scaler_out && !dev->has_compose_out) {
+			rect_set_min_size(&r, &dev->sink_rect);
+		}
+		mp->width = r.width;
+		mp->height = r.height / factor;
+	}
+
+	/* This driver supports custom bytesperline values */
+
+	/* Calculate the minimum supported bytesperline value */
+	bytesperline = (mp->width * fmt->depth) >> 3;
+	/* Calculate the maximum supported bytesperline value */
+	max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->depth) >> 3;
+	mp->num_planes = fmt->planes;
+	for (p = 0; p < mp->num_planes; p++) {
+		if (pfmt[p].bytesperline > max_bpl)
+			pfmt[p].bytesperline = max_bpl;
+		if (pfmt[p].bytesperline < bytesperline)
+			pfmt[p].bytesperline = bytesperline;
+		pfmt[p].sizeimage = pfmt[p].bytesperline * mp->height;
+		memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
+	}
+	if (vivid_is_svid_out(dev))
+		mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
+	else if (dev->dvi_d_out || !(bt->standards & V4L2_DV_BT_STD_CEA861))
+		mp->colorspace = V4L2_COLORSPACE_SRGB;
+	else if (bt->width == 720 && bt->height <= 576)
+		mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
+	else if (mp->colorspace != V4L2_COLORSPACE_SMPTE170M &&
+		 mp->colorspace != V4L2_COLORSPACE_REC709 &&
+		 mp->colorspace != V4L2_COLORSPACE_SRGB)
+		mp->colorspace = V4L2_COLORSPACE_REC709;
+	memset(mp->reserved, 0, sizeof(mp->reserved));
+	return 0;
+}
+
+int vivid_s_fmt_vid_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rect *crop = &dev->crop_out;
+	struct v4l2_rect *compose = &dev->compose_out;
+	struct vb2_queue *q = &dev->vb_vid_out_q;
+	int ret = vivid_try_fmt_vid_out(file, priv, f);
+	unsigned factor = 1;
+
+	if (ret < 0)
+		return ret;
+
+	if (vb2_is_busy(q) &&
+	    (vivid_is_svid_out(dev) ||
+	     mp->width != dev->fmt_out_rect.width ||
+	     mp->height != dev->fmt_out_rect.height ||
+	     mp->pixelformat != dev->fmt_out->fourcc ||
+	     mp->field != dev->field_out)) {
+		dprintk(dev, 1, "%s device busy\n", __func__);
+		return -EBUSY;
+	}
+
+	/*
+	 * Allow for changing the colorspace on the fly. Useful for testing
+	 * purposes, and it is something that HDMI transmitters are able
+	 * to do.
+	 */
+	if (vb2_is_busy(q))
+		goto set_colorspace;
+
+	dev->fmt_out = get_format(dev, mp->pixelformat);
+	if (V4L2_FIELD_HAS_T_OR_B(mp->field))
+		factor = 2;
+
+	if (dev->has_scaler_out || dev->has_crop_out || dev->has_compose_out) {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height };
+
+		if (dev->has_scaler_out) {
+			if (dev->has_crop_out)
+				rect_map_inside(crop, &r);
+			else
+				*crop = r;
+			if (dev->has_compose_out && !dev->has_crop_out) {
+				struct v4l2_rect min_r = {
+					0, 0,
+					r.width / MAX_ZOOM,
+					factor * r.height / MAX_ZOOM
+				};
+				struct v4l2_rect max_r = {
+					0, 0,
+					r.width * MAX_ZOOM,
+					factor * r.height * MAX_ZOOM
+				};
+
+				rect_set_min_size(compose, &min_r);
+				rect_set_max_size(compose, &max_r);
+				rect_map_inside(compose, &dev->compose_bounds_out);
+			} else if (dev->has_compose_out) {
+				struct v4l2_rect min_r = {
+					0, 0,
+					crop->width / MAX_ZOOM,
+					factor * crop->height / MAX_ZOOM
+				};
+				struct v4l2_rect max_r = {
+					0, 0,
+					crop->width * MAX_ZOOM,
+					factor * crop->height * MAX_ZOOM
+				};
+
+				rect_set_min_size(compose, &min_r);
+				rect_set_max_size(compose, &max_r);
+				rect_map_inside(compose, &dev->compose_bounds_out);
+			}
+		} else if (dev->has_compose_out && !dev->has_crop_out) {
+			rect_set_size_to(crop, &r);
+			r.height *= factor;
+			rect_set_size_to(compose, &r);
+			rect_map_inside(compose, &dev->compose_bounds_out);
+		} else if (!dev->has_compose_out) {
+			rect_map_inside(crop, &r);
+			r.height /= factor;
+			rect_set_size_to(compose, &r);
+		} else {
+			r.height *= factor;
+			rect_set_max_size(compose, &r);
+			rect_map_inside(compose, &dev->compose_bounds_out);
+			crop->top *= factor;
+			crop->height *= factor;
+			rect_set_size_to(crop, compose);
+			rect_map_inside(crop, &r);
+			crop->top /= factor;
+			crop->height /= factor;
+		}
+	} else {
+		struct v4l2_rect r = { 0, 0, mp->width, mp->height };
+
+		rect_set_size_to(crop, &r);
+		r.height /= factor;
+		rect_set_size_to(compose, &r);
+	}
+
+	dev->fmt_out_rect.width = mp->width;
+	dev->fmt_out_rect.height = mp->height;
+	dev->bytesperline_out[0] = mp->plane_fmt[0].bytesperline;
+	if (mp->num_planes > 1)
+		dev->bytesperline_out[1] = mp->plane_fmt[1].bytesperline;
+	dev->field_out = mp->field;
+	if (vivid_is_svid_out(dev))
+		dev->tv_field_out = mp->field;
+
+set_colorspace:
+	dev->colorspace_out = mp->colorspace;
+	if (dev->loop_video) {
+		vivid_send_source_change(dev, SVID);
+		vivid_send_source_change(dev, HDMI);
+	}
+	return 0;
+}
+
+int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_g_fmt_vid_out(file, priv, f);
+}
+
+int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_try_fmt_vid_out(file, priv, f);
+}
+
+int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->multiplanar)
+		return -ENOTTY;
+	return vivid_s_fmt_vid_out(file, priv, f);
+}
+
+int vidioc_g_fmt_vid_out(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out);
+}
+
+int vidioc_try_fmt_vid_out(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out);
+}
+
+int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+			struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (dev->multiplanar)
+		return -ENOTTY;
+	return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out);
+}
+
+int vivid_vid_out_g_selection(struct file *file, void *priv,
+			      struct v4l2_selection *sel)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!dev->has_crop_out && !dev->has_compose_out)
+		return -ENOTTY;
+	if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	sel->r.left = sel->r.top = 0;
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		if (!dev->has_crop_out)
+			return -EINVAL;
+		sel->r = dev->crop_out;
+		break;
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		if (!dev->has_crop_out)
+			return -EINVAL;
+		sel->r = dev->fmt_out_rect;
+		break;
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		if (!dev->has_compose_out)
+			return -EINVAL;
+		sel->r = vivid_max_rect;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		if (!dev->has_compose_out)
+			return -EINVAL;
+		sel->r = dev->compose_out;
+		break;
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+		if (!dev->has_compose_out)
+			return -EINVAL;
+		sel->r = dev->sink_rect;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int vivid_vid_out_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct v4l2_rect *crop = &dev->crop_out;
+	struct v4l2_rect *compose = &dev->compose_out;
+	unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_out) ? 2 : 1;
+	int ret;
+
+	if (!dev->has_crop_out && !dev->has_compose_out)
+		return -ENOTTY;
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP:
+		if (!dev->has_crop_out)
+			return -EINVAL;
+		ret = vivid_vid_adjust_sel(s->flags, &s->r);
+		if (ret)
+			return ret;
+		rect_set_min_size(&s->r, &vivid_min_rect);
+		rect_set_max_size(&s->r, &dev->fmt_out_rect);
+		if (dev->has_scaler_out) {
+			struct v4l2_rect max_rect = {
+				0, 0,
+				dev->sink_rect.width * MAX_ZOOM,
+				(dev->sink_rect.height / factor) * MAX_ZOOM
+			};
+
+			rect_set_max_size(&s->r, &max_rect);
+			if (dev->has_compose_out) {
+				struct v4l2_rect min_rect = {
+					0, 0,
+					s->r.width / MAX_ZOOM,
+					(s->r.height * factor) / MAX_ZOOM
+				};
+				struct v4l2_rect max_rect = {
+					0, 0,
+					s->r.width * MAX_ZOOM,
+					(s->r.height * factor) * MAX_ZOOM
+				};
+
+				rect_set_min_size(compose, &min_rect);
+				rect_set_max_size(compose, &max_rect);
+				rect_map_inside(compose, &dev->compose_bounds_out);
+			}
+		} else if (dev->has_compose_out) {
+			s->r.top *= factor;
+			s->r.height *= factor;
+			rect_set_max_size(&s->r, &dev->sink_rect);
+			rect_set_size_to(compose, &s->r);
+			rect_map_inside(compose, &dev->compose_bounds_out);
+			s->r.top /= factor;
+			s->r.height /= factor;
+		} else {
+			rect_set_size_to(&s->r, &dev->sink_rect);
+			s->r.height /= factor;
+		}
+		rect_map_inside(&s->r, &dev->fmt_out_rect);
+		*crop = s->r;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		if (!dev->has_compose_out)
+			return -EINVAL;
+		ret = vivid_vid_adjust_sel(s->flags, &s->r);
+		if (ret)
+			return ret;
+		rect_set_min_size(&s->r, &vivid_min_rect);
+		rect_set_max_size(&s->r, &dev->sink_rect);
+		rect_map_inside(&s->r, &dev->compose_bounds_out);
+		s->r.top /= factor;
+		s->r.height /= factor;
+		if (dev->has_scaler_out) {
+			struct v4l2_rect fmt = dev->fmt_out_rect;
+			struct v4l2_rect max_rect = {
+				0, 0,
+				s->r.width * MAX_ZOOM,
+				s->r.height * MAX_ZOOM
+			};
+			struct v4l2_rect min_rect = {
+				0, 0,
+				s->r.width / MAX_ZOOM,
+				s->r.height / MAX_ZOOM
+			};
+
+			rect_set_min_size(&fmt, &min_rect);
+			if (!dev->has_crop_out)
+				rect_set_max_size(&fmt, &max_rect);
+			if (!rect_same_size(&dev->fmt_out_rect, &fmt) &&
+			    vb2_is_busy(&dev->vb_vid_out_q))
+				return -EBUSY;
+			if (dev->has_crop_out) {
+				rect_set_min_size(crop, &min_rect);
+				rect_set_max_size(crop, &max_rect);
+			}
+			dev->fmt_out_rect = fmt;
+		} else if (dev->has_crop_out) {
+			struct v4l2_rect fmt = dev->fmt_out_rect;
+
+			rect_set_min_size(&fmt, &s->r);
+			if (!rect_same_size(&dev->fmt_out_rect, &fmt) &&
+			    vb2_is_busy(&dev->vb_vid_out_q))
+				return -EBUSY;
+			dev->fmt_out_rect = fmt;
+			rect_set_size_to(crop, &s->r);
+			rect_map_inside(crop, &dev->fmt_out_rect);
+		} else {
+			if (!rect_same_size(&s->r, &dev->fmt_out_rect) &&
+			    vb2_is_busy(&dev->vb_vid_out_q))
+				return -EBUSY;
+			rect_set_size_to(&dev->fmt_out_rect, &s->r);
+			rect_set_size_to(crop, &s->r);
+			crop->height /= factor;
+			rect_map_inside(crop, &dev->fmt_out_rect);
+		}
+		s->r.top *= factor;
+		s->r.height *= factor;
+		if (dev->bitmap_out && (compose->width != s->r.width ||
+					compose->height != s->r.height)) {
+			kfree(dev->bitmap_out);
+			dev->bitmap_out = NULL;
+		}
+		*compose = s->r;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int vivid_vid_out_cropcap(struct file *file, void *priv,
+			      struct v4l2_cropcap *cap)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (vivid_get_pixel_aspect(dev)) {
+	case TPG_PIXEL_ASPECT_NTSC:
+		cap->pixelaspect.numerator = 11;
+		cap->pixelaspect.denominator = 10;
+		break;
+	case TPG_PIXEL_ASPECT_PAL:
+		cap->pixelaspect.numerator = 54;
+		cap->pixelaspect.denominator = 59;
+		break;
+	case TPG_PIXEL_ASPECT_SQUARE:
+		cap->pixelaspect.numerator = 1;
+		cap->pixelaspect.denominator = 1;
+		break;
+	}
+	return 0;
+}
+
+int vidioc_g_fmt_vid_out_overlay(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct v4l2_rect *compose = &dev->compose_out;
+	struct v4l2_window *win = &f->fmt.win;
+	unsigned clipcount = win->clipcount;
+
+	if (!dev->has_fb)
+		return -EINVAL;
+	win->w.top = dev->overlay_out_top;
+	win->w.left = dev->overlay_out_left;
+	win->w.width = compose->width;
+	win->w.height = compose->height;
+	win->clipcount = dev->clipcount_out;
+	win->field = V4L2_FIELD_ANY;
+	win->chromakey = dev->chromakey_out;
+	win->global_alpha = dev->global_alpha_out;
+	if (clipcount > dev->clipcount_out)
+		clipcount = dev->clipcount_out;
+	if (dev->bitmap_out == NULL)
+		win->bitmap = NULL;
+	else if (win->bitmap) {
+		if (copy_to_user(win->bitmap, dev->bitmap_out,
+		    ((dev->compose_out.width + 7) / 8) * dev->compose_out.height))
+			return -EFAULT;
+	}
+	if (clipcount && win->clips) {
+		if (copy_to_user(win->clips, dev->clips_out,
+				 clipcount * sizeof(dev->clips_out[0])))
+			return -EFAULT;
+	}
+	return 0;
+}
+
+int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct v4l2_rect *compose = &dev->compose_out;
+	struct v4l2_window *win = &f->fmt.win;
+	int i, j;
+
+	if (!dev->has_fb)
+		return -EINVAL;
+	win->w.left = clamp_t(int, win->w.left,
+			      -dev->display_width, dev->display_width);
+	win->w.top = clamp_t(int, win->w.top,
+			     -dev->display_height, dev->display_height);
+	win->w.width = compose->width;
+	win->w.height = compose->height;
+	/*
+	 * It makes no sense for an OSD to overlay only top or bottom fields,
+	 * so always set this to ANY.
+	 */
+	win->field = V4L2_FIELD_ANY;
+	if (win->clipcount && !win->clips)
+		win->clipcount = 0;
+	if (win->clipcount > MAX_CLIPS)
+		win->clipcount = MAX_CLIPS;
+	if (win->clipcount) {
+		if (copy_from_user(dev->try_clips_out, win->clips,
+				   win->clipcount * sizeof(dev->clips_out[0])))
+			return -EFAULT;
+		for (i = 0; i < win->clipcount; i++) {
+			struct v4l2_rect *r = &dev->try_clips_out[i].c;
+
+			r->top = clamp_t(s32, r->top, 0, dev->display_height - 1);
+			r->height = clamp_t(s32, r->height, 1, dev->display_height - r->top);
+			r->left = clamp_t(u32, r->left, 0, dev->display_width - 1);
+			r->width = clamp_t(u32, r->width, 1, dev->display_width - r->left);
+		}
+		/*
+		 * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
+		 * number and it's typically a one-time deal.
+		 */
+		for (i = 0; i < win->clipcount - 1; i++) {
+			struct v4l2_rect *r1 = &dev->try_clips_out[i].c;
+
+			for (j = i + 1; j < win->clipcount; j++) {
+				struct v4l2_rect *r2 = &dev->try_clips_out[j].c;
+
+				if (rect_overlap(r1, r2))
+					return -EINVAL;
+			}
+		}
+		if (copy_to_user(win->clips, dev->try_clips_out,
+				 win->clipcount * sizeof(dev->clips_out[0])))
+			return -EFAULT;
+	}
+	return 0;
+}
+
+int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv,
+					struct v4l2_format *f)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const struct v4l2_rect *compose = &dev->compose_out;
+	struct v4l2_window *win = &f->fmt.win;
+	int ret = vidioc_try_fmt_vid_out_overlay(file, priv, f);
+	unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
+	unsigned clips_size = win->clipcount * sizeof(dev->clips_out[0]);
+	void *new_bitmap = NULL;
+
+	if (ret)
+		return ret;
+
+	if (win->bitmap) {
+		new_bitmap = kzalloc(bitmap_size, GFP_KERNEL);
+
+		if (new_bitmap == NULL)
+			return -ENOMEM;
+		if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
+			kfree(new_bitmap);
+			return -EFAULT;
+		}
+	}
+
+	dev->overlay_out_top = win->w.top;
+	dev->overlay_out_left = win->w.left;
+	kfree(dev->bitmap_out);
+	dev->bitmap_out = new_bitmap;
+	dev->clipcount_out = win->clipcount;
+	if (dev->clipcount_out)
+		memcpy(dev->clips_out, dev->try_clips_out, clips_size);
+	dev->chromakey_out = win->chromakey;
+	dev->global_alpha_out = win->global_alpha;
+	return ret;
+}
+
+int vivid_vid_out_overlay(struct file *file, void *fh, unsigned i)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (i && !dev->fmt_out->can_do_overlay) {
+		dprintk(dev, 1, "unsupported output format for output overlay\n");
+		return -EINVAL;
+	}
+
+	dev->overlay_out_enabled = i;
+	return 0;
+}
+
+int vivid_vid_out_g_fbuf(struct file *file, void *fh,
+				struct v4l2_framebuffer *a)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	a->capability = V4L2_FBUF_CAP_EXTERNOVERLAY |
+			V4L2_FBUF_CAP_BITMAP_CLIPPING |
+			V4L2_FBUF_CAP_LIST_CLIPPING |
+			V4L2_FBUF_CAP_CHROMAKEY |
+			V4L2_FBUF_CAP_SRC_CHROMAKEY |
+			V4L2_FBUF_CAP_GLOBAL_ALPHA |
+			V4L2_FBUF_CAP_LOCAL_ALPHA |
+			V4L2_FBUF_CAP_LOCAL_INV_ALPHA;
+	a->flags = V4L2_FBUF_FLAG_OVERLAY | dev->fbuf_out_flags;
+	a->base = (void *)dev->video_pbase;
+	a->fmt.width = dev->display_width;
+	a->fmt.height = dev->display_height;
+	if (dev->fb_defined.green.length == 5)
+		a->fmt.pixelformat = V4L2_PIX_FMT_ARGB555;
+	else
+		a->fmt.pixelformat = V4L2_PIX_FMT_RGB565;
+	a->fmt.bytesperline = dev->display_byte_stride;
+	a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline;
+	a->fmt.field = V4L2_FIELD_NONE;
+	a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
+	a->fmt.priv = 0;
+	return 0;
+}
+
+int vivid_vid_out_s_fbuf(struct file *file, void *fh,
+				const struct v4l2_framebuffer *a)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	const unsigned chroma_flags = V4L2_FBUF_FLAG_CHROMAKEY |
+				      V4L2_FBUF_FLAG_SRC_CHROMAKEY;
+	const unsigned alpha_flags = V4L2_FBUF_FLAG_GLOBAL_ALPHA |
+				     V4L2_FBUF_FLAG_LOCAL_ALPHA |
+				     V4L2_FBUF_FLAG_LOCAL_INV_ALPHA;
+
+
+	if ((a->flags & chroma_flags) == chroma_flags)
+		return -EINVAL;
+	switch (a->flags & alpha_flags) {
+	case 0:
+	case V4L2_FBUF_FLAG_GLOBAL_ALPHA:
+	case V4L2_FBUF_FLAG_LOCAL_ALPHA:
+	case V4L2_FBUF_FLAG_LOCAL_INV_ALPHA:
+		break;
+	default:
+		return -EINVAL;
+	}
+	dev->fbuf_out_flags &= ~(chroma_flags | alpha_flags);
+	dev->fbuf_out_flags = a->flags & (chroma_flags | alpha_flags);
+	return 0;
+}
+
+static const struct v4l2_audioout vivid_audio_outputs[] = {
+	{ 0, "Line-Out 1" },
+	{ 1, "Line-Out 2" },
+};
+
+int vidioc_enum_output(struct file *file, void *priv,
+				struct v4l2_output *out)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (out->index >= dev->num_outputs)
+		return -EINVAL;
+
+	out->type = V4L2_OUTPUT_TYPE_ANALOG;
+	switch (dev->output_type[out->index]) {
+	case SVID:
+		snprintf(out->name, sizeof(out->name), "S-Video %u",
+				dev->output_name_counter[out->index]);
+		out->std = V4L2_STD_ALL;
+		if (dev->has_audio_outputs)
+			out->audioset = (1 << ARRAY_SIZE(vivid_audio_outputs)) - 1;
+		out->capabilities = V4L2_OUT_CAP_STD;
+		break;
+	case HDMI:
+		snprintf(out->name, sizeof(out->name), "HDMI %u",
+				dev->output_name_counter[out->index]);
+		out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
+		break;
+	}
+	return 0;
+}
+
+int vidioc_g_output(struct file *file, void *priv, unsigned *o)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	*o = dev->output;
+	return 0;
+}
+
+int vidioc_s_output(struct file *file, void *priv, unsigned o)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (o >= dev->num_outputs)
+		return -EINVAL;
+
+	if (o == dev->output)
+		return 0;
+
+	if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q))
+		return -EBUSY;
+
+	dev->output = o;
+	dev->tv_audio_output = 0;
+	if (dev->output_type[o] == SVID)
+		dev->vid_out_dev.tvnorms = V4L2_STD_ALL;
+	else
+		dev->vid_out_dev.tvnorms = 0;
+
+	dev->vbi_out_dev.tvnorms = dev->vid_out_dev.tvnorms;
+	vivid_update_format_out(dev);
+	return 0;
+}
+
+int vidioc_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vout)
+{
+	if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
+		return -EINVAL;
+	*vout = vivid_audio_outputs[vout->index];
+	return 0;
+}
+
+int vidioc_g_audout(struct file *file, void *fh, struct v4l2_audioout *vout)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_svid_out(dev))
+		return -EINVAL;
+	*vout = vivid_audio_outputs[dev->tv_audio_output];
+	return 0;
+}
+
+int vidioc_s_audout(struct file *file, void *fh, const struct v4l2_audioout *vout)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_svid_out(dev))
+		return -EINVAL;
+	if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
+		return -EINVAL;
+	dev->tv_audio_output = vout->index;
+	return 0;
+}
+
+int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_svid_out(dev))
+		return -ENODATA;
+	if (dev->std_out == id)
+		return 0;
+	if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q))
+		return -EBUSY;
+	dev->std_out = id;
+	vivid_update_format_out(dev);
+	return 0;
+}
+
+int vivid_vid_out_s_dv_timings(struct file *file, void *_fh,
+				    struct v4l2_dv_timings *timings)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (!vivid_is_hdmi_out(dev))
+		return -ENODATA;
+	if (vb2_is_busy(&dev->vb_vid_out_q))
+		return -EBUSY;
+	if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
+				0, NULL, NULL))
+		return -EINVAL;
+	if (v4l2_match_dv_timings(timings, &dev->dv_timings_out, 0))
+		return 0;
+	dev->dv_timings_out = *timings;
+	vivid_update_format_out(dev);
+	return 0;
+}
+
+int vivid_vid_out_g_edid(struct file *file, void *_fh,
+			 struct v4l2_edid *edid)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+	struct video_device *vdev = video_devdata(file);
+
+	memset(edid->reserved, 0, sizeof(edid->reserved));
+	if (vdev->vfl_dir == VFL_DIR_RX) {
+		if (edid->pad >= dev->num_inputs)
+			return -EINVAL;
+		if (dev->input_type[edid->pad] != HDMI)
+			return -EINVAL;
+	} else {
+		if (edid->pad >= dev->num_outputs)
+			return -EINVAL;
+		if (dev->output_type[edid->pad] != HDMI)
+			return -EINVAL;
+	}
+	if (edid->start_block == 0 && edid->blocks == 0) {
+		edid->blocks = dev->edid_blocks;
+		return 0;
+	}
+	if (dev->edid_blocks == 0)
+		return -ENODATA;
+	if (edid->start_block >= dev->edid_blocks)
+		return -EINVAL;
+	if (edid->start_block + edid->blocks > dev->edid_blocks)
+		edid->blocks = dev->edid_blocks - edid->start_block;
+	memcpy(edid->edid, dev->edid, edid->blocks * 128);
+	return 0;
+}
+
+int vivid_vid_out_s_edid(struct file *file, void *_fh,
+			 struct v4l2_edid *edid)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	memset(edid->reserved, 0, sizeof(edid->reserved));
+	if (edid->pad >= dev->num_inputs)
+		return -EINVAL;
+	if (dev->input_type[edid->pad] != HDMI || edid->start_block)
+		return -EINVAL;
+	if (edid->blocks == 0) {
+		dev->edid_blocks = 0;
+		return 0;
+	}
+	if (edid->blocks > dev->edid_max_blocks) {
+		edid->blocks = dev->edid_max_blocks;
+		return -E2BIG;
+	}
+	dev->edid_blocks = edid->blocks;
+	memcpy(dev->edid, edid->edid, edid->blocks * 128);
+	return 0;
+}
+
+int vivid_vid_out_g_parm(struct file *file, void *priv,
+			  struct v4l2_streamparm *parm)
+{
+	struct vivid_dev *dev = video_drvdata(file);
+
+	if (parm->type != (dev->multiplanar ?
+			   V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
+			   V4L2_BUF_TYPE_VIDEO_OUTPUT))
+		return -EINVAL;
+
+	parm->parm.output.capability   = V4L2_CAP_TIMEPERFRAME;
+	parm->parm.output.timeperframe = dev->timeperframe_vid_out;
+	parm->parm.output.writebuffers  = 1;
+return 0;
+}
+
+int vidioc_subscribe_event(struct v4l2_fh *fh,
+			const struct v4l2_event_subscription *sub)
+{
+	switch (sub->type) {
+	case V4L2_EVENT_CTRL:
+		return v4l2_ctrl_subscribe_event(fh, sub);
+	case V4L2_EVENT_SOURCE_CHANGE:
+		if (fh->vdev->vfl_dir == VFL_DIR_RX)
+			return v4l2_src_change_event_subscribe(fh, sub);
+		break;
+	default:
+		break;
+	}
+	return -EINVAL;
+}